/* roulang page: index */
:root {
            --primary: #C41E3A;
            --primary-dark: #9B1A2E;
            --primary-light: #E8455C;
            --accent: #D4A017;
            --accent-light: #F0C75E;
            --bg-dark: #0d0d1a;
            --bg-dark-2: #141428;
            --bg-card: #1a1a30;
            --bg-section: #fafafa;
            --bg-white: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5e;
            --text-light: #6e6e82;
            --text-on-dark: #e8e8f0;
            --text-on-dark-muted: #a0a0b8;
            --border: #e0e0e8;
            --border-light: #eeeef4;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.18);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.07);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-stack: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
            --bottom-tab-height: 60px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            color: var(--text-primary);
            background: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            padding-bottom: 0;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
        }
        h1 {
            font-size: 2.6rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.15rem;
        }
        p {
            margin-bottom: 0.8rem;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .header-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }
        .header-logo:hover {
            color: var(--primary-dark);
        }
        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .header-nav a:hover {
            color: var(--primary);
            background: rgba(196, 30, 58, 0.04);
        }
        .header-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: rgba(196, 30, 58, 0.07);
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-normal);
            white-space: nowrap;
            cursor: pointer;
            border: none;
            text-align: center;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(196, 30, 58, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(196, 30, 58, 0.4);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(196, 30, 58, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-accent {
            background: var(--accent);
            color: #1a1a2e;
            box-shadow: 0 4px 14px rgba(212, 160, 23, 0.35);
            font-weight: 700;
        }
        .btn-accent:hover {
            background: #e0b030;
            color: #1a1a2e;
            box-shadow: 0 6px 20px rgba(212, 160, 23, 0.45);
            transform: translateY(-1px);
        }
        .btn-lg {
            padding: 13px 30px;
            font-size: 1.05rem;
            border-radius: var(--radius-lg);
        }
        .btn-sm {
            padding: 6px 14px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }

        /* ============ BOTTOM TAB NAV (MOBILE) ============ */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.08);
            height: var(--bottom-tab-height);
            padding: 0 4px;
            padding-bottom: env(safe-area-inset-bottom, 0);
        }
        .bottom-tab-nav .tab-list {
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 100%;
            max-width: 500px;
            margin: 0 auto;
        }
        .bottom-tab-nav .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            flex: 1;
            height: 100%;
            color: var(--text-light);
            font-size: 0.7rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            border-radius: 0;
            padding: 4px 2px;
            text-align: center;
            cursor: pointer;
            background: transparent;
            border: none;
        }
        .bottom-tab-nav .tab-item i {
            font-size: 1.25rem;
            transition: all var(--transition-fast);
        }
        .bottom-tab-nav .tab-item.active {
            color: var(--primary);
            font-weight: 700;
        }
        .bottom-tab-nav .tab-item.active i {
            color: var(--primary);
        }
        .bottom-tab-nav .tab-item:hover {
            color: var(--primary);
        }

        /* ============ HERO ============ */
        .hero-section {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-color: var(--bg-dark);
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 13, 26, 0.88) 0%, rgba(20, 20, 40, 0.78) 40%, rgba(13, 13, 26, 0.9) 100%);
            z-index: 1;
        }
        .hero-particles {
            position: absolute;
            inset: 0;
            z-index: 0;
            pointer-events: none;
            opacity: 0.3;
            background: radial-gradient(ellipse at 30% 20%, rgba(212, 160, 23, 0.15) 0%, transparent 55%),
                radial-gradient(ellipse at 70% 60%, rgba(196, 30, 58, 0.12) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 80%, rgba(212, 160, 23, 0.08) 0%, transparent 50%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 780px;
            padding: 40px 20px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(212, 160, 23, 0.2);
            color: var(--accent-light);
            border: 1px solid rgba(212, 160, 23, 0.35);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: 0.04em;
            animation: pulse-badge 2.2s ease-in-out infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(212, 160, 23, 0.35);
            }
            50% {
                box-shadow: 0 0 0 14px rgba(212, 160, 23, 0);
            }
        }
        .hero-content h1 {
            color: #fff;
            font-size: 3rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
        }
        .hero-content h1 .highlight {
            color: var(--accent-light);
            position: relative;
        }
        .hero-desc {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 620px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }
        .hero-countdown-wrap {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 50px;
            padding: 10px 20px;
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            backdrop-filter: blur(6px);
        }
        .hero-countdown-wrap .countdown-num {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-light);
            min-width: 28px;
            text-align: center;
        }
        .hero-countdown-wrap .countdown-sep {
            color: rgba(255, 255, 255, 0.5);
            font-weight: 400;
        }
        .hero-stats {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 10px;
        }
        .hero-stat {
            text-align: center;
            color: #fff;
        }
        .hero-stat .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-light);
        }
        .hero-stat .stat-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 2px;
        }

        /* ============ SECTIONS ============ */
        section {
            padding: 64px 0;
        }
        section.section-dark {
            background: var(--bg-dark-2);
            color: var(--text-on-dark);
        }
        section.section-dark h2,
        section.section-dark h3,
        section.section-dark h4 {
            color: #fff;
        }
        section.section-dark p {
            color: var(--text-on-dark-muted);
        }
        section.section-light {
            background: var(--bg-section);
        }
        section.section-white {
            background: var(--bg-white);
        }
        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-header h2 {
            margin-bottom: 10px;
        }
        .section-header .section-subtitle {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
            background: rgba(196, 30, 58, 0.07);
            padding: 4px 12px;
            border-radius: 50px;
        }

        /* ============ CARDS ============ */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .card-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 16px;
            aspect-ratio: 16 / 10;
            flex-shrink: 0;
        }
        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .card:hover .card-image img {
            transform: scale(1.05);
        }
        .card-body {
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h4 {
            margin-bottom: 6px;
        }
        .card-body p {
            color: var(--text-light);
            font-size: 0.9rem;
            line-height: 1.6;
            flex: 1;
        }
        .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 50px;
            background: rgba(196, 30, 58, 0.08);
            color: var(--primary);
            margin-bottom: 8px;
            align-self: flex-start;
        }
        .card-accent {
            border-left: 5px solid var(--accent);
        }
        .card-dark {
            background: var(--bg-card);
            border-color: rgba(255, 255, 255, 0.08);
            color: var(--text-on-dark);
        }
        .card-dark h4 {
            color: #fff;
        }
        .card-dark p {
            color: var(--text-on-dark-muted);
        }

        /* ============ CATEGORY GRID ============ */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .category-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 22px 18px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            cursor: pointer;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }
        .category-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--primary);
        }
        .category-card .cat-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(196, 30, 58, 0.1), rgba(196, 30, 58, 0.04));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            transition: all var(--transition-normal);
        }
        .category-card:hover .cat-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.08);
        }
        .category-card .cat-name {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
        }
        .category-card .cat-count {
            font-size: 0.78rem;
            color: var(--text-light);
        }

        /* ============ NEWS LIST ============ */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 32px;
            align-items: start;
        }
        .news-list-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }
        .news-list-item:hover {
            padding-left: 8px;
            border-bottom-color: var(--primary);
        }
        .news-date {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            background: rgba(196, 30, 58, 0.06);
            border-radius: var(--radius-md);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            font-size: 0.8rem;
            text-align: center;
            line-height: 1.2;
        }
        .news-date .day {
            font-size: 1.3rem;
            font-weight: 800;
        }
        .news-info h4 {
            margin-bottom: 4px;
            font-size: 1rem;
        }
        .news-info p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .news-sidebar {
            background: var(--bg-section);
            border-radius: var(--radius-lg);
            padding: 20px;
            position: sticky;
            top: 90px;
        }
        .news-sidebar h4 {
            margin-bottom: 12px;
            font-size: 1rem;
        }
        .news-sidebar .hot-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
            font-weight: 500;
            transition: color var(--transition-fast);
            cursor: pointer;
        }
        .news-sidebar .hot-item:hover {
            color: var(--primary);
        }
        .news-sidebar .hot-item .hot-rank {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .news-sidebar .hot-item:nth-child(2) .hot-rank {
            background: #e07b39;
        }
        .news-sidebar .hot-item:nth-child(3) .hot-rank {
            background: #d4a017;
        }
        .news-sidebar .hot-item:nth-child(n+4) .hot-rank {
            background: #999;
        }

        /* ============ TIMELINE ============ */
        .timeline {
            position: relative;
            padding-left: 40px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(180deg, var(--primary), var(--accent), var(--primary-light));
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 28px;
            padding-left: 20px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid #fff;
            box-shadow: 0 0 0 4px rgba(196, 30, 58, 0.2);
            z-index: 1;
        }
        .timeline-item .tl-time {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .timeline-item h4 {
            margin-bottom: 4px;
        }
        .timeline-item p {
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 4px;
        }
        .timeline-item .tl-action {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            cursor: pointer;
            transition: color var(--transition-fast);
        }
        .timeline-item .tl-action:hover {
            color: #b0880f;
        }

        /* ============ TIER / PRICING ============ */
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .tier-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 26px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 2px solid var(--border-light);
            transition: all var(--transition-normal);
            position: relative;
        }
        .tier-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .tier-card.featured {
            border-color: var(--accent);
            background: linear-gradient(180deg, #fffef9, #fff);
            box-shadow: var(--shadow-lg);
        }
        .tier-card.featured::before {
            content: '热门推荐';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: #1a1a2e;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 50px;
            white-space: nowrap;
        }
        .tier-card .tier-name {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 6px;
        }
        .tier-card .tier-benefit {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 12px;
            line-height: 1.5;
        }
        .tier-card .tier-highlight {
            font-weight: 800;
            color: var(--primary);
            font-size: 1.3rem;
            margin-bottom: 10px;
        }
        .tier-card .tier-limit {
            font-size: 0.78rem;
            color: var(--text-light);
            margin-bottom: 14px;
        }

        /* ============ OPINION CARDS ============ */
        .opinion-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .opinion-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            position: relative;
        }
        .opinion-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .opinion-card .quote-icon {
            font-size: 2rem;
            color: rgba(196, 30, 58, 0.2);
            margin-bottom: 8px;
        }
        .opinion-card h4 {
            margin-bottom: 8px;
        }
        .opinion-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }
        .opinion-card .opinion-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--primary);
            background: rgba(196, 30, 58, 0.06);
            padding: 3px 10px;
            border-radius: 50px;
            margin-top: 10px;
        }

        /* ============ CHANGELOG ============ */
        .changelog-list {
            max-width: 700px;
            margin: 0 auto;
        }
        .changelog-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .changelog-version {
            flex-shrink: 0;
            font-weight: 800;
            font-size: 0.85rem;
            color: var(--primary);
            background: rgba(196, 30, 58, 0.07);
            padding: 4px 12px;
            border-radius: 50px;
            height: fit-content;
            white-space: nowrap;
        }
        .changelog-content h4 {
            margin-bottom: 4px;
            font-size: 0.95rem;
        }
        .changelog-content p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 0;
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 18px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            padding-left: 8px;
        }
        .faq-item .faq-q {
            font-weight: 700;
            font-size: 1.05rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            color: var(--text-primary);
        }
        .faq-item .faq-q .faq-icon {
            transition: transform var(--transition-normal);
            font-size: 1rem;
            color: var(--primary);
            flex-shrink: 0;
        }
        .faq-item.open .faq-q .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding-top var(--transition-normal);
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
            padding-top: 10px;
        }

        /* ============ DOWNLOAD / CTA ============ */
        .download-section {
            background: linear-gradient(135deg, var(--bg-dark), var(--bg-dark-2));
            color: #fff;
            text-align: center;
        }
        .download-section h2 {
            color: #fff;
        }
        .download-section p {
            color: var(--text-on-dark-muted);
        }
        .download-badges {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 20px;
        }
        .download-badge {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: 16px 24px;
            display: flex;
            align-items: center;
            gap: 10px;
            cursor: pointer;
            transition: all var(--transition-normal);
            font-weight: 600;
            font-size: 0.95rem;
        }
        .download-badge:hover {
            background: rgba(255, 255, 255, 0.18);
            border-color: var(--accent);
            transform: translateY(-2px);
        }
        .download-badge i {
            font-size: 1.6rem;
            color: var(--accent-light);
        }

        /* ============ REVIEWS ============ */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .review-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 22px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }
        .review-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .review-card .review-stars {
            color: var(--accent);
            font-size: 0.9rem;
            margin-bottom: 8px;
            letter-spacing: 2px;
        }
        .review-card .review-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 10px;
        }
        .review-card .review-author {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--text-primary);
        }
        .review-card .review-date {
            font-size: 0.75rem;
            color: var(--text-light);
        }

        /* ============ STATS ROW ============ */
        .stats-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            text-align: center;
        }
        .stats-row .stat-block {
            padding: 10px;
        }
        .stats-row .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
        }
        .stats-row .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 4px;
        }

        /* ============ BRAND INTRO ============ */
        .brand-intro {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
            line-height: 1.8;
            font-size: 1rem;
            color: var(--text-secondary);
        }
        .brand-intro .highlight-text {
            font-weight: 700;
            color: var(--primary);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark-muted);
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 14px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: var(--text-on-dark-muted);
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.8rem;
        }
        .footer-bottom a {
            color: var(--text-on-dark-muted);
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-logo-text {
            font-weight: 700;
            color: #fff;
            font-size: 1.2rem;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .tier-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .opinion-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .review-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                position: static;
                top: auto;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .hero-content h1 {
                font-size: 2.3rem;
            }
            .hero-section {
                min-height: 460px;
            }
        }
        @media (max-width: 768px) {
            .site-header .header-nav {
                display: none;
            }
            .site-header .header-cta .btn {
                padding: 8px 14px;
                font-size: 0.85rem;
            }
            .bottom-tab-nav {
                display: block;
            }
            body {
                padding-bottom: var(--bottom-tab-height);
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .tier-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .opinion-grid {
                grid-template-columns: 1fr;
            }
            .review-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .stats-row {
                gap: 20px;
            }
            .stats-row .stat-num {
                font-size: 1.8rem;
            }
            .hero-content h1 {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-section {
                min-height: 400px;
            }
            section {
                padding: 40px 0;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .hero-stats {
                gap: 16px;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .timeline {
                padding-left: 28px;
            }
            .timeline::before {
                left: 10px;
            }
            .timeline-item::before {
                left: -22px;
                width: 10px;
                height: 10px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .btn-lg {
                padding: 10px 22px;
                font-size: 0.95rem;
            }
        }
        @media (max-width: 520px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .category-card {
                padding: 14px 10px;
            }
            .category-card .cat-icon {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }
            .category-card .cat-name {
                font-size: 0.8rem;
            }
            .tier-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .hero-content h1 {
                font-size: 1.5rem;
            }
            .hero-desc {
                font-size: 0.85rem;
            }
            .hero-section {
                min-height: 340px;
            }
            .hero-countdown-wrap {
                font-size: 0.8rem;
                padding: 8px 14px;
            }
            .hero-countdown-wrap .countdown-num {
                font-size: 1rem;
                min-width: 22px;
            }
            .hero-stat .stat-num {
                font-size: 1.3rem;
            }
            .stats-row .stat-num {
                font-size: 1.4rem;
            }
            .bottom-tab-nav .tab-item {
                font-size: 0.65rem;
            }
            .bottom-tab-nav .tab-item i {
                font-size: 1.1rem;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #C41E3A;
            --primary-dark: #9B1A2E;
            --primary-light: #E8455C;
            --accent: #D4A017;
            --accent-light: #F0C75E;
            --bg-dark: #0d0d1a;
            --bg-dark-2: #141428;
            --bg-card: #1a1a30;
            --bg-section: #fafafa;
            --bg-white: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5e;
            --text-light: #6e6e82;
            --text-on-dark: #e8e8f0;
            --text-on-dark-muted: #a0a0b8;
            --border: #e0e0e8;
            --border-light: #eeeef4;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.18);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.07);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-stack: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
            --bottom-tab-height: 60px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            color: var(--text-primary);
            background: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            padding-bottom: 0;
            overflow-x: hidden;
            margin: 0;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            outline: none;
        }

        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .header-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .header-logo:hover {
            color: var(--primary-dark);
        }

        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .header-nav a:hover {
            color: var(--primary);
            background: rgba(196, 30, 58, 0.04);
        }

        .header-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: rgba(196, 30, 58, 0.07);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-normal);
            white-space: nowrap;
            cursor: pointer;
            border: none;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(196, 30, 58, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(196, 30, 58, 0.35);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 1px 4px rgba(196, 30, 58, 0.2);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-sm {
            padding: 7px 16px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
            font-weight: 700;
        }

        .btn-accent {
            background: var(--accent);
            color: #1a1a2e;
            box-shadow: 0 2px 8px rgba(212, 160, 23, 0.3);
        }

        .btn-accent:hover {
            background: #c8960f;
            color: #1a1a2e;
            box-shadow: 0 4px 16px rgba(212, 160, 23, 0.4);
            transform: translateY(-1px);
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .btn-white:hover {
            background: #f8f8f8;
            color: var(--primary-dark);
            box-shadow: var(--shadow-lg);
            transform: translateY(-1px);
        }

        /* ============ MOBILE BOTTOM TAB ============ */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.08);
            height: var(--bottom-tab-height);
            padding: 0 8px;
        }

        .bottom-tab-nav .tab-inner {
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 100%;
            max-width: 500px;
            margin: 0 auto;
        }

        .bottom-tab-nav a {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--text-light);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            min-width: 50px;
        }

        .bottom-tab-nav a i {
            font-size: 1.2rem;
            transition: color var(--transition-fast);
        }

        .bottom-tab-nav a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .bottom-tab-nav a.active i {
            color: var(--primary);
        }

        .bottom-tab-nav a:hover {
            color: var(--primary);
        }

        /* ============ HERO VIDEO STYLE ============ */
        .hero-video-section {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background: var(--bg-dark);
        }

        .hero-video-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
        }

        .hero-video-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, rgba(13, 13, 26, 0.75) 0%, rgba(13, 13, 26, 0.88) 50%, rgba(13, 13, 26, 0.94) 100%);
            z-index: 1;
        }

        .hero-video-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            padding: 40px 20px;
        }

        .hero-play-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            border: 3px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-size: 2rem;
            cursor: pointer;
            transition: all var(--transition-slow);
            margin-bottom: 24px;
            animation: pulse-ring 2.5s ease-out infinite;
        }

        .hero-play-btn:hover {
            background: var(--primary);
            border-color: var(--primary);
            transform: scale(1.08);
            box-shadow: 0 0 40px rgba(196, 30, 58, 0.6);
            animation: none;
        }

        @keyframes pulse-ring {
            0% {
                box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.45);
            }
            70% {
                box-shadow: 0 0 0 28px rgba(255, 255, 255, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
            }
        }

        .hero-video-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            line-height: 1.3;
        }

        .hero-video-content .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-on-dark-muted);
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-video-content .hero-cta-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ============ SECTION STYLES ============ */
        .section {
            padding: 72px 0;
        }

        .section-dark {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }

        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }

        .section-gray {
            background: var(--bg-section);
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--primary);
            margin-bottom: 10px;
            padding: 5px 12px;
            background: rgba(196, 30, 58, 0.06);
            border-radius: 20px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 32px;
        }

        .text-center {
            text-align: center;
        }

        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }

        /* ============ CARDS ============ */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .card-icon-red {
            background: rgba(196, 30, 58, 0.1);
            color: var(--primary);
        }

        .card-icon-gold {
            background: rgba(212, 160, 23, 0.12);
            color: var(--accent);
        }

        .card-icon-dark {
            background: rgba(26, 26, 46, 0.06);
            color: var(--text-primary);
        }

        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex-grow: 1;
        }

        .card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--primary);
            font-size: 0.9rem;
            margin-top: 12px;
            transition: gap var(--transition-fast);
        }

        .card .card-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        .card .card-link i {
            font-size: 0.75rem;
        }

        /* ============ STAT BLOCK ============ */
        .stat-block {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.03em;
            line-height: 1;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.3;
        }

        /* ============ STEP / PROCESS ============ */
        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .step-item:last-child {
            border-bottom: none;
        }

        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .step-body h4 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 4px;
            color: var(--text-primary);
        }

        .step-body p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ============ FAQ ============ */
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 18px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            gap: 16px;
        }

        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-light);
            transition: transform var(--transition-normal);
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 12px;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-2) 100%);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(196, 30, 58, 0.12);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(212, 160, 23, 0.1);
            pointer-events: none;
        }

        .cta-section .cta-inner {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .cta-section p {
            color: var(--text-on-dark-muted);
            font-size: 1.05rem;
            margin-bottom: 28px;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .cta-btn-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ============ CASE CARD ============ */
        .case-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .case-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .case-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .case-card-body {
            padding: 20px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .case-card-body h4 {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 6px;
            color: var(--text-primary);
        }

        .case-card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex-grow: 1;
            margin-bottom: 10px;
        }

        .case-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            background: rgba(196, 30, 58, 0.07);
            color: var(--primary);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark-muted);
            padding: 48px 0 28px;
            font-size: 0.9rem;
            line-height: 1.8;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .site-footer h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li {
            margin-bottom: 6px;
        }

        .site-footer ul li a {
            color: var(--text-on-dark-muted);
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }

        .site-footer ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--text-on-dark-muted);
            text-align: center;
        }

        .footer-bottom span {
            white-space: nowrap;
        }

        .footer-bottom a {
            color: var(--text-on-dark-muted);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .header-nav a {
                padding: 6px 10px;
                font-size: 0.85rem;
            }
            .header-cta .btn {
                padding: 7px 14px;
                font-size: 0.82rem;
            }
            .header-logo {
                font-size: 1.3rem;
            }
            .section {
                padding: 52px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .hero-video-content h1 {
                font-size: 2.2rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: auto;
                min-height: 56px;
                padding: 8px 0;
            }
            .site-header .header-inner {
                flex-wrap: wrap;
                gap: 8px;
                justify-content: center;
                padding: 0 12px;
            }
            .header-nav {
                order: 3;
                width: 100%;
                overflow-x: auto;
                flex-wrap: nowrap;
                gap: 2px;
                padding: 4px 0 8px;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
                justify-content: flex-start;
            }
            .header-nav::-webkit-scrollbar {
                display: none;
            }
            .header-nav a {
                font-size: 0.8rem;
                padding: 6px 10px;
                flex-shrink: 0;
            }
            .header-cta {
                gap: 6px;
            }
            .header-cta .btn {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .header-logo {
                font-size: 1.2rem;
            }
            .header-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.9rem;
            }
            .bottom-tab-nav {
                display: block;
            }
            body {
                padding-bottom: var(--bottom-tab-height);
            }
            .hero-video-section {
                min-height: 420px;
            }
            .hero-video-content h1 {
                font-size: 1.8rem;
            }
            .hero-video-content .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-play-btn {
                width: 60px;
                height: 60px;
                font-size: 1.5rem;
            }
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-desc {
                font-size: 0.95rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
                text-align: center;
            }
            .card {
                padding: 20px 16px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .step-item {
                flex-direction: column;
                gap: 12px;
                align-items: center;
                text-align: center;
            }
            .step-number {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .hero-video-section {
                min-height: 360px;
            }
            .hero-video-content h1 {
                font-size: 1.5rem;
            }
            .hero-video-content .hero-subtitle {
                font-size: 0.88rem;
            }
            .hero-play-btn {
                width: 50px;
                height: 50px;
                font-size: 1.2rem;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: center;
            }
            .hero-cta-group .btn {
                width: 100%;
                max-width: 260px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .bottom-tab-nav a {
                font-size: 0.65rem;
                padding: 4px 6px;
            }
            .bottom-tab-nav a i {
                font-size: 1rem;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 6px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #C41E3A;
            --primary-dark: #9B1A2E;
            --primary-light: #E8455C;
            --accent: #D4A017;
            --accent-light: #F0C75E;
            --bg-dark: #0d0d1a;
            --bg-dark-2: #141428;
            --bg-card: #1a1a30;
            --bg-section: #fafafa;
            --bg-white: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5e;
            --text-light: #6e6e82;
            --text-on-dark: #e8e8f0;
            --text-on-dark-muted: #a0a0b8;
            --border: #e0e0e8;
            --border-light: #eeeef4;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.18);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.07);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-stack: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
            --bottom-tab-height: 60px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-stack);
            color: var(--text-primary);
            background: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            padding-bottom: 0;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.3;
        }
        p {
            margin: 0 0 1rem;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .header-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }
        .header-logo:hover {
            color: var(--primary-dark);
        }
        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .header-nav a:hover {
            color: var(--primary);
            background: rgba(196, 30, 58, 0.04);
        }
        .header-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: rgba(196, 30, 58, 0.07);
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-normal);
            white-space: nowrap;
            cursor: pointer;
            border: none;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(196, 30, 58, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(196, 30, 58, 0.35);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-1px);
        }
        .btn-sm {
            padding: 7px 16px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
            font-weight: 700;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 2px 10px rgba(212, 160, 23, 0.3);
        }
        .btn-accent:hover {
            background: #c89215;
            color: #fff;
            box-shadow: 0 6px 20px rgba(212, 160, 23, 0.4);
            transform: translateY(-2px);
        }
        .btn-white {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            box-shadow: var(--shadow-md);
        }
        .btn-white:hover {
            background: #fff;
            color: var(--primary-dark);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        /* ============ MOBILE BOTTOM TABS ============ */
        .bottom-tabs {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.08);
            height: var(--bottom-tab-height);
            padding: 0 8px;
        }
        .bottom-tabs .tab-list {
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 100%;
            gap: 0;
        }
        .bottom-tabs .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            font-size: 0.7rem;
            color: var(--text-light);
            font-weight: 500;
            transition: color var(--transition-fast);
            padding: 4px 6px;
            border-radius: var(--radius-sm);
            min-width: 48px;
            text-align: center;
            cursor: pointer;
            text-decoration: none;
        }
        .bottom-tabs .tab-item i {
            font-size: 1.25rem;
            transition: color var(--transition-fast);
        }
        .bottom-tabs .tab-item.active {
            color: var(--primary);
            font-weight: 700;
        }
        .bottom-tabs .tab-item.active i {
            color: var(--primary);
        }
        .bottom-tabs .tab-item:hover {
            color: var(--primary);
        }

        /* ============ HERO ============ */
        .hero-section {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 13, 26, 0.88) 0%, rgba(20, 20, 40, 0.72) 50%, rgba(13, 13, 26, 0.85) 100%);
            z-index: 1;
        }
        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 60px 0 40px;
        }
        .hero-section .hero-badge {
            display: inline-block;
            background: rgba(212, 160, 23, 0.2);
            color: var(--accent-light);
            border: 1px solid rgba(212, 160, 23, 0.35);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }
        .hero-section .hero-title {
            font-size: 3rem;
            font-weight: 900;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .hero-section .hero-title .highlight {
            color: var(--accent-light);
        }
        .hero-section .hero-subtitle {
            font-size: 1.2rem;
            color: var(--text-on-dark-muted);
            margin-bottom: 28px;
            max-width: 620px;
            line-height: 1.6;
        }
        .hero-section .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-section .skill-nav-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }
        .hero-section .skill-nav-strip .skill-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 8px 18px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }
        .hero-section .skill-nav-strip .skill-tag:hover {
            background: rgba(196, 30, 58, 0.5);
            border-color: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
        }
        .hero-section .skill-nav-strip .skill-tag i {
            font-size: 0.8rem;
            color: var(--accent-light);
        }

        /* ============ SECTIONS ============ */
        .section {
            padding: 70px 0;
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }
        .section-gray {
            background: var(--bg-section);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-light);
            margin-bottom: 40px;
            max-width: 600px;
        }
        .section-dark .section-subtitle {
            color: var(--text-on-dark-muted);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-title {
            margin-bottom: 8px;
        }
        .section-header .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ============ CARDS ============ */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--border);
        }
        .card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .card .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card .card-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--primary);
            background: rgba(196, 30, 58, 0.07);
            padding: 4px 10px;
            border-radius: 12px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .card .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .card .card-desc {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }
        .card .card-link {
            font-weight: 600;
            color: var(--primary);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
        }
        .card .card-link:hover {
            gap: 8px;
            color: var(--primary-dark);
        }
        .card .card-link i {
            font-size: 0.75rem;
        }

        /* ============ FEATURE ROW ============ */
        .feature-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .feature-row .feature-img-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .feature-row .feature-img-wrap img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        .feature-row .feature-text h3 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .feature-row .feature-text p {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .feature-row .feature-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
        }
        .feature-row .feature-list li {
            padding: 8px 0;
            padding-left: 26px;
            position: relative;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .feature-row .feature-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: 700;
            font-size: 0.9rem;
        }

        /* ============ STATS ============ */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition-normal);
        }
        .stat-card:hover {
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-3px);
        }
        .stat-card .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--accent-light);
            letter-spacing: -0.02em;
            line-height: 1;
        }
        .stat-card .stat-label {
            font-size: 0.95rem;
            color: var(--text-on-dark-muted);
            margin-top: 8px;
            font-weight: 500;
        }

        /* ============ STEPS ============ */
        .steps-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            counter-reset: step-counter;
        }
        .step-item {
            position: relative;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 24px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            counter-increment: step-counter;
        }
        .step-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .step-item .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 16px;
        }
        .step-item .step-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .step-item .step-desc {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ============ TESTIMONIALS ============ */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            position: relative;
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
        }
        .testimonial-card .quote-icon {
            font-size: 1.8rem;
            color: var(--primary-light);
            opacity: 0.5;
            margin-bottom: 10px;
        }
        .testimonial-card .quote-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            font-style: italic;
        }
        .testimonial-card .quote-author {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
        }
        .testimonial-card .quote-role {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-item .faq-question {
            padding: 18px 22px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--text-primary);
            transition: color var(--transition-fast);
            background: none;
            width: 100%;
            text-align: left;
            border: none;
            font-family: inherit;
        }
        .faq-item .faq-question:hover {
            color: var(--primary);
        }
        .faq-item .faq-question i {
            font-size: 0.8rem;
            transition: transform var(--transition-fast);
            color: var(--text-light);
        }
        .faq-item .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
            z-index: 1;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-dark-2);
            color: var(--text-on-dark-muted);
            padding: 48px 0 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 32px;
        }
        .site-footer .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 14px;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }
        .site-footer .footer-col ul li a {
            color: var(--text-on-dark-muted);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .site-footer .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-on-dark-muted);
            align-items: center;
            justify-content: center;
            text-align: center;
        }
        .site-footer .footer-bottom a {
            color: var(--text-on-dark-muted);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent-light);
        }
        .site-footer .footer-bottom span {
            white-space: nowrap;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .header-nav a {
                padding: 6px 10px;
                font-size: 0.82rem;
            }
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-row {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero-section .hero-title {
                font-size: 2.4rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .bottom-tabs {
                display: block;
            }
            body {
                padding-bottom: var(--bottom-tab-height);
            }
            .site-footer {
                padding-bottom: 80px;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .steps-list {
                grid-template-columns: 1fr;
            }
            .hero-section {
                min-height: 440px;
            }
            .hero-section .hero-title {
                font-size: 1.8rem;
            }
            .hero-section .hero-subtitle {
                font-size: 1rem;
            }
            .hero-section .skill-nav-strip {
                gap: 6px;
                margin-top: 20px;
                padding-top: 16px;
            }
            .hero-section .skill-nav-strip .skill-tag {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .feature-row .feature-img-wrap img {
                height: 240px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
            .stat-card .stat-number {
                font-size: 2rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .hero-section {
                min-height: 380px;
            }
            .hero-section .hero-title {
                font-size: 1.5rem;
            }
            .hero-section .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .hero-section .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-section .skill-nav-strip .skill-tag {
                font-size: 0.72rem;
                padding: 5px 10px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 18px 12px;
            }
            .stat-card .stat-number {
                font-size: 1.6rem;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .card .card-img {
                height: 160px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #C41E3A;
            --primary-dark: #9B1A2E;
            --primary-light: #E8455C;
            --accent: #D4A017;
            --accent-light: #F0C75E;
            --bg-dark: #0d0d1a;
            --bg-dark-2: #141428;
            --bg-card: #1a1a30;
            --bg-section: #fafafa;
            --bg-white: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5e;
            --text-light: #6e6e82;
            --text-on-dark: #e8e8f0;
            --text-on-dark-muted: #a0a0b8;
            --border: #e0e0e8;
            --border-light: #eeeef4;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.18);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.07);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-stack: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
            --bottom-tab-height: 60px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-stack);
            color: var(--text-primary);
            background: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            padding-bottom: 0;
            overflow-x: hidden;
            margin: 0;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
        }
        p {
            margin: 0 0 1rem;
            color: var(--text-secondary);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .header-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }
        .header-logo:hover {
            color: var(--primary-dark);
        }
        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .header-nav a:hover {
            color: var(--primary);
            background: rgba(196, 30, 58, 0.04);
        }
        .header-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: rgba(196, 30, 58, 0.07);
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-normal);
            white-space: nowrap;
            cursor: pointer;
            border: none;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-outline:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .btn-sm {
            padding: 7px 16px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: #b8860f;
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-white {
            background: #fff;
            color: var(--primary);
        }
        .btn-white:hover {
            background: #f5f5f5;
            color: var(--primary-dark);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        /* ============ MOBILE BOTTOM TAB ============ */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.08);
            height: var(--bottom-tab-height);
            padding: 0 8px;
        }
        .bottom-tab-nav .tab-list {
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 100%;
            max-width: 500px;
            margin: 0 auto;
        }
        .bottom-tab-nav .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition-fast);
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            min-width: 56px;
            text-align: center;
            cursor: pointer;
            text-decoration: none;
        }
        .bottom-tab-nav .tab-item i {
            font-size: 1.2rem;
            transition: color var(--transition-fast);
        }
        .bottom-tab-nav .tab-item.active {
            color: var(--primary);
            font-weight: 700;
        }
        .bottom-tab-nav .tab-item.active i {
            color: var(--primary);
        }
        .bottom-tab-nav .tab-item:hover {
            color: var(--primary);
            background: rgba(196, 30, 58, 0.04);
        }

        /* ============ HERO ============ */
        .hero-section {
            position: relative;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            min-height: 520px;
            display: flex;
            align-items: center;
            padding: 60px 0;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 13, 26, 0.92) 0%, rgba(20, 20, 40, 0.78) 50%, rgba(13, 13, 26, 0.88) 100%);
            z-index: 1;
        }
        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            width: 100%;
        }
        .hero-section .hero-badge {
            display: inline-block;
            background: rgba(212, 160, 23, 0.2);
            border: 1px solid var(--accent);
            color: var(--accent-light);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
        }
        .hero-section h1 {
            font-size: 3rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            line-height: 1.2;
        }
        .hero-section h1 span {
            color: var(--accent-light);
        }
        .hero-section .hero-subtitle {
            font-size: 1.2rem;
            color: var(--text-on-dark-muted);
            max-width: 680px;
            margin: 0 auto 32px;
            line-height: 1.6;
        }
        .hero-search-wrap {
            max-width: 620px;
            margin: 0 auto 28px;
            position: relative;
        }
        .hero-search-wrap input {
            width: 100%;
            padding: 16px 56px 16px 22px;
            border-radius: var(--radius-xl);
            border: 2px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 1rem;
            transition: all var(--transition-normal);
            outline: none;
            backdrop-filter: blur(6px);
        }
        .hero-search-wrap input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .hero-search-wrap input:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.14);
            box-shadow: 0 0 0 8px rgba(212, 160, 23, 0.08);
        }
        .hero-search-wrap .search-btn {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            transition: all var(--transition-normal);
            cursor: pointer;
            border: none;
        }
        .hero-search-wrap .search-btn:hover {
            background: #b8860f;
            box-shadow: 0 4px 16px rgba(212, 160, 23, 0.4);
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            max-width: 700px;
            margin: 0 auto;
        }
        .hero-tags .tag-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: #fff;
            font-weight: 500;
            font-size: 0.9rem;
            transition: all var(--transition-normal);
            cursor: pointer;
            white-space: nowrap;
        }
        .hero-tags .tag-link:hover {
            background: rgba(196, 30, 58, 0.35);
            border-color: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(196, 30, 58, 0.3);
        }
        .hero-tags .tag-link i {
            color: var(--accent-light);
        }

        /* ============ SECTIONS ============ */
        .section {
            padding: 70px 0;
        }
        .section-alt {
            background: var(--bg-section);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-dark p {
            color: var(--text-on-dark-muted);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }
        .section-header .section-line {
            width: 50px;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
            margin: 0 auto 14px;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-dark .section-header p {
            color: var(--text-on-dark-muted);
        }
        .section-dark .section-header .section-line {
            background: var(--accent);
        }

        /* ============ CARDS ============ */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .card .card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card .card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 14px;
            flex: 1;
            line-height: 1.6;
        }
        .card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-light);
            flex-wrap: wrap;
        }
        .card .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .card .card-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            background: rgba(196, 30, 58, 0.1);
            color: var(--primary);
        }
        .card .card-badge.live {
            background: rgba(212, 160, 23, 0.15);
            color: #b8860f;
            animation: pulse-badge 2s ease-in-out infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.6;
            }
        }

        /* ============ RANKING LIST ============ */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border-left: 4px solid transparent;
        }
        .ranking-item:hover {
            box-shadow: var(--shadow-md);
            border-left-color: var(--primary);
            transform: translateX(4px);
        }
        .ranking-item .rank-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
            background: var(--bg-section);
            color: var(--text-secondary);
        }
        .ranking-item .rank-num.top1 {
            background: linear-gradient(135deg, #D4A017, #F0C75E);
            color: #fff;
        }
        .ranking-item .rank-num.top2 {
            background: linear-gradient(135deg, #a0a0b8, #c8c8d8);
            color: #fff;
        }
        .ranking-item .rank-num.top3 {
            background: linear-gradient(135deg, #b87351, #d4956b);
            color: #fff;
        }
        .ranking-item .rank-info {
            flex: 1;
            min-width: 0;
        }
        .ranking-item .rank-info h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 2px;
        }
        .ranking-item .rank-info span {
            font-size: 0.8rem;
            color: var(--text-light);
        }
        .ranking-item .rank-prize {
            font-weight: 700;
            color: var(--primary);
            font-size: 1.05rem;
            white-space: nowrap;
        }

        /* ============ STATS ============ */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            padding: 28px 20px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition-normal);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }
        .stat-card .stat-num {
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--accent-light);
            letter-spacing: -0.02em;
            margin-bottom: 6px;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-on-dark-muted);
            font-weight: 500;
        }

        /* ============ PROCESS STEPS ============ */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            position: relative;
        }
        .process-step {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .process-step .step-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--bg-white);
            border: 3px solid var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.3rem;
            color: var(--primary);
            transition: all var(--transition-normal);
            position: relative;
            z-index: 2;
        }
        .process-step .step-icon .step-num {
            position: absolute;
            top: -8px;
            right: -8px;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .process-step h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 0.8rem;
            color: var(--text-light);
            line-height: 1.5;
        }
        .process-step:hover .step-icon {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 24px rgba(196, 30, 58, 0.3);
            transform: scale(1.08);
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-normal);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-item .faq-question {
            padding: 18px 22px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            transition: background var(--transition-fast);
        }
        .faq-item .faq-question:hover {
            background: rgba(196, 30, 58, 0.02);
        }
        .faq-item .faq-question i {
            transition: transform var(--transition-normal);
            font-size: 0.85rem;
            color: var(--text-light);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }
        .faq-item .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }

        /* ============ CTA BANNER ============ */
        .cta-banner {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            bottom: -30px;
            left: -30px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }
        .cta-banner h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-banner p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-banner .btn-wrap {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark-muted);
            padding: 50px 0 20px;
            font-size: 0.9rem;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .site-footer .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: var(--text-on-dark-muted);
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }
        .site-footer ul li a:hover {
            color: var(--accent-light);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            font-size: 0.78rem;
            color: var(--text-on-dark-muted);
            text-align: center;
        }
        .site-footer .footer-bottom a {
            color: var(--text-on-dark-muted);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent-light);
        }
        .site-footer .footer-bottom span {
            white-space: nowrap;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .header-nav a {
                padding: 6px 10px;
                font-size: 0.82rem;
            }
            .header-logo {
                font-size: 1.25rem;
            }
            .hero-section h1 {
                font-size: 2.4rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .site-header .header-nav {
                display: none;
            }
            .site-header .header-cta {
                gap: 6px;
            }
            .site-header .header-cta .btn {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .bottom-tab-nav {
                display: block;
            }
            body {
                padding-bottom: var(--bottom-tab-height);
            }
            .site-footer {
                padding-bottom: 80px;
            }
            .hero-section {
                min-height: 420px;
                padding: 40px 0;
            }
            .hero-section h1 {
                font-size: 1.9rem;
            }
            .hero-section .hero-subtitle {
                font-size: 1rem;
                padding: 0 10px;
            }
            .hero-search-wrap {
                max-width: 90%;
            }
            .hero-tags {
                gap: 8px;
                padding: 0 10px;
            }
            .hero-tags .tag-link {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .section {
                padding: 44px 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-card .stat-num {
                font-size: 2rem;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .process-steps .process-step:nth-child(5) {
                grid-column: span 2;
                justify-self: center;
                max-width: 200px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .cta-banner {
                padding: 34px 22px;
            }
            .cta-banner h2 {
                font-size: 1.5rem;
            }
            .ranking-item {
                flex-wrap: wrap;
                gap: 10px;
                padding: 14px 16px;
            }
            .ranking-item .rank-prize {
                width: 100%;
                text-align: right;
            }
        }
        @media (max-width: 520px) {
            .header-logo {
                font-size: 1.1rem;
            }
            .header-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.85rem;
            }
            .header-cta .btn {
                padding: 5px 10px;
                font-size: 0.72rem;
            }
            .hero-section h1 {
                font-size: 1.55rem;
            }
            .hero-section .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-search-wrap input {
                padding: 13px 44px 13px 16px;
                font-size: 0.9rem;
            }
            .hero-search-wrap .search-btn {
                width: 36px;
                height: 36px;
                right: 4px;
                font-size: 0.95rem;
            }
            .hero-tags .tag-link {
                padding: 7px 12px;
                font-size: 0.75rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 18px 12px;
            }
            .stat-card .stat-num {
                font-size: 1.6rem;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
                text-align: center;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .card .card-img {
                height: 160px;
            }
            .ranking-item {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
            .ranking-item .rank-prize {
                width: auto;
                text-align: left;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #C41E3A;
            --primary-dark: #9B1A2E;
            --primary-light: #E8455C;
            --accent: #D4A017;
            --accent-light: #F0C75E;
            --bg-dark: #0d0d1a;
            --bg-dark-2: #141428;
            --bg-card: #1a1a30;
            --bg-section: #fafafa;
            --bg-white: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5e;
            --text-light: #6e6e82;
            --text-on-dark: #e8e8f0;
            --text-on-dark-muted: #a0a0b8;
            --border: #e0e0e8;
            --border-light: #eeeef4;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.18);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.07);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-stack: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
            --bottom-tab-height: 60px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-stack);
            color: var(--text-primary);
            background: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            padding-bottom: 0;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .header-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }
        .header-logo:hover {
            color: var(--primary-dark);
        }
        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .header-nav::-webkit-scrollbar {
            display: none;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .header-nav a:hover {
            color: var(--primary);
            background: rgba(196, 30, 58, 0.04);
        }
        .header-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: rgba(196, 30, 58, 0.07);
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-normal);
            white-space: nowrap;
            cursor: pointer;
            border: none;
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(196, 30, 58, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(196, 30, 58, 0.4);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 2px 8px rgba(212, 160, 23, 0.3);
        }
        .btn-accent:hover {
            background: #b88a14;
            color: #fff;
            box-shadow: 0 4px 16px rgba(212, 160, 23, 0.4);
            transform: translateY(-1px);
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
        }
        .btn-sm {
            padding: 6px 14px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }
        .btn-xl {
            padding: 18px 40px;
            font-size: 1.2rem;
            border-radius: var(--radius-xl);
            font-weight: 700;
        }

        /* ============ MOBILE BOTTOM TAB ============ */
        .mobile-bottom-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.08);
            height: var(--bottom-tab-height);
            padding: 0 8px;
        }
        .mobile-bottom-nav .tab-list {
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 100%;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .mobile-bottom-nav .tab-list li {
            flex: 1;
            text-align: center;
        }
        .mobile-bottom-nav .tab-list a {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            font-size: 0.7rem;
            color: var(--text-light);
            padding: 4px 2px;
            transition: all var(--transition-fast);
            text-decoration: none;
            font-weight: 500;
        }
        .mobile-bottom-nav .tab-list a i {
            font-size: 1.25rem;
            transition: all var(--transition-fast);
        }
        .mobile-bottom-nav .tab-list a.active {
            color: var(--primary);
            font-weight: 700;
        }
        .mobile-bottom-nav .tab-list a.active i {
            color: var(--primary);
        }
        .mobile-bottom-nav .tab-list a:hover {
            color: var(--primary);
        }

        @media (max-width: 768px) {
            .mobile-bottom-nav {
                display: block;
            }
            body {
                padding-bottom: calc(var(--bottom-tab-height) + 16px);
            }
            .site-header .header-nav {
                display: none;
            }
            .site-header .header-cta {
                gap: 6px;
            }
            .site-header .header-cta .btn {
                padding: 6px 12px;
                font-size: 0.8rem;
            }
            .header-logo {
                font-size: 1.2rem;
            }
            .header-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.9rem;
            }
            .site-header {
                height: 56px;
            }
            :root {
                --nav-height: 56px;
            }
        }
        @media (max-width: 520px) {
            .site-header .header-cta .btn-outline {
                display: none;
            }
            .header-logo {
                font-size: 1.05rem;
                gap: 4px;
            }
        }
        @media (min-width: 769px) {
            .mobile-bottom-nav {
                display: none !important;
            }
            body {
                padding-bottom: 0 !important;
            }
        }

        /* ============ SECTION STYLES ============ */
        .section {
            padding: 70px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-lg {
            padding: 90px 0;
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-muted {
            background: var(--bg-section);
        }
        .section-accent-bg {
            background: linear-gradient(135deg, #1a1a30 0%, #1f1020 50%, #1a1a30 100%);
            color: var(--text-on-dark);
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.6;
        }
        .section-dark .section-title,
        .section-accent-bg .section-title {
            color: #fff;
        }
        .section-dark .section-subtitle,
        .section-accent-bg .section-subtitle {
            color: var(--text-on-dark-muted);
        }

        .text-center {
            text-align: center;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .mb-30 {
            margin-bottom: 30px;
        }
        .mb-40 {
            margin-bottom: 40px;
        }
        .mb-50 {
            margin-bottom: 50px;
        }
        .mt-20 {
            margin-top: 20px;
        }
        .mt-30 {
            margin-top: 30px;
        }
        .mt-40 {
            margin-top: 40px;
        }

        /* ============ HERO SECTION ============ */
        .hero-download {
            background: linear-gradient(160deg, #0d0d1a 0%, #1a1028 30%, #0d0d1a 70%, #141428 100%);
            color: var(--text-on-dark);
            padding: 80px 0 70px;
            position: relative;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .hero-download::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -180px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(196, 30, 58, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-download::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(212, 160, 23, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-download .hero-inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 50px;
            flex-wrap: wrap;
        }
        .hero-download .hero-text {
            flex: 1 1 480px;
            min-width: 300px;
        }
        .hero-download .hero-visual {
            flex: 1 1 380px;
            min-width: 280px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-download .hero-visual img {
            max-width: 420px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            border: 2px solid rgba(255, 255, 255, 0.1);
        }
        .hero-download h1 {
            font-size: 3rem;
            font-weight: 900;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.03em;
            line-height: 1.2;
        }
        .hero-download h1 .highlight {
            color: var(--accent-light);
            position: relative;
        }
        .hero-download .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-on-dark-muted);
            margin-bottom: 24px;
            line-height: 1.7;
            max-width: 540px;
        }
        .hero-download .hero-features {
            list-style: none;
            margin: 0 0 28px;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
        }
        .hero-download .hero-features li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
            color: #d0d0e0;
            font-weight: 500;
        }
        .hero-download .hero-features li i {
            color: var(--accent-light);
            font-size: 1rem;
            flex-shrink: 0;
        }
        .hero-download .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            margin-bottom: 20px;
        }
        .hero-download .trust-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-on-dark-muted);
        }
        .hero-download .trust-strip span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .hero-download .trust-strip i {
            color: var(--accent-light);
        }

        @media (max-width: 768px) {
            .hero-download {
                padding: 50px 0 40px;
                min-height: auto;
            }
            .hero-download h1 {
                font-size: 2rem;
            }
            .hero-download .hero-subtitle {
                font-size: 1rem;
            }
            .hero-download .hero-inner {
                gap: 30px;
            }
            .hero-download .hero-visual img {
                max-width: 280px;
            }
            .hero-download .hero-features {
                gap: 8px 16px;
            }
            .hero-download .hero-features li {
                font-size: 0.85rem;
            }
        }
        @media (max-width: 520px) {
            .hero-download h1 {
                font-size: 1.6rem;
            }
            .hero-download .hero-cta-row {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-download .hero-cta-row .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-download .hero-visual {
                display: none;
            }
        }

        /* ============ PLATFORM CARDS ============ */
        .platform-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .platform-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }
        .platform-card .platform-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .platform-card .platform-icon.android {
            background: #e8f5e9;
            color: #2e7d32;
        }
        .platform-card .platform-icon.ios {
            background: #e3f2fd;
            color: #1565c0;
        }
        .platform-card .platform-icon.pc {
            background: #f3e5f5;
            color: #6a1b9a;
        }
        .platform-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .platform-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 16px;
            flex-grow: 1;
        }
        .platform-card .badge-version {
            display: inline-block;
            background: var(--bg-section);
            color: var(--text-secondary);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            margin-bottom: 12px;
        }

        /* ============ ADVANTAGE LIST ============ */
        .advantage-list-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .advantage-list-item:last-child {
            border-bottom: none;
        }
        .advantage-list-item .adv-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            flex-shrink: 0;
            background: rgba(196, 30, 58, 0.08);
            color: var(--primary);
        }
        .advantage-list-item .adv-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-primary);
        }
        .advantage-list-item .adv-content p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.6;
        }

        /* ============ STEP TIMELINE ============ */
        .step-timeline {
            display: flex;
            flex-wrap: wrap;
            gap: 0;
            position: relative;
            counter-reset: step;
        }
        .step-item {
            flex: 1 1 200px;
            min-width: 180px;
            text-align: center;
            padding: 24px 16px;
            position: relative;
            counter-increment: step;
        }
        .step-item::after {
            content: '';
            position: absolute;
            top: 56px;
            right: -20px;
            width: 40px;
            height: 2px;
            background: var(--border);
            z-index: 0;
        }
        .step-item:last-child::after {
            display: none;
        }
        .step-item .step-number {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            position: relative;
            z-index: 1;
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .step-item p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.5;
        }
        @media (max-width: 768px) {
            .step-item::after {
                display: none;
            }
            .step-item {
                flex: 1 1 140px;
                min-width: 130px;
                padding: 16px 8px;
            }
        }

        /* ============ STAT BLOCK ============ */
        .stat-block {
            text-align: center;
            padding: 24px 16px;
        }
        .stat-block .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-block .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 500;
        }
        .section-dark .stat-block .stat-number {
            color: var(--accent-light);
        }
        .section-dark .stat-block .stat-label {
            color: var(--text-on-dark-muted);
        }

        /* ============ TESTIMONIAL CARD ============ */
        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            height: 100%;
            position: relative;
        }
        .testimonial-card::before {
            content: '\201C';
            font-size: 4rem;
            color: var(--primary);
            opacity: 0.2;
            position: absolute;
            top: 8px;
            left: 16px;
            line-height: 1;
            font-family: serif;
        }
        .testimonial-card .testimonial-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
            padding-top: 8px;
        }
        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .testimonial-card .testimonial-author .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-section);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .testimonial-card .testimonial-author .author-info {
            font-size: 0.85rem;
        }
        .testimonial-card .testimonial-author .author-info strong {
            display: block;
            color: var(--text-primary);
        }
        .testimonial-card .testimonial-author .author-info span {
            color: var(--text-light);
            font-size: 0.8rem;
        }

        /* ============ SECURITY LIST ============ */
        .security-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 16px 0;
        }
        .security-item .sec-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: rgba(46, 125, 50, 0.1);
            color: #2e7d32;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .security-item h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 2px;
            color: var(--text-primary);
        }
        .security-item p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin: 0;
        }

        /* ============ FAQ ACCORDION ============ */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--bg-white);
            transition: all var(--transition-fast);
        }
        .faq-accordion .accordion-item:hover {
            border-color: var(--border);
        }
        .faq-accordion .accordion-title {
            padding: 16px 20px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            color: var(--text-primary);
            transition: all var(--transition-fast);
            user-select: none;
            background: transparent;
            width: 100%;
            text-align: left;
            border: none;
            outline: none;
        }
        .faq-accordion .accordion-title:hover {
            color: var(--primary);
            background: rgba(196, 30, 58, 0.02);
        }
        .faq-accordion .accordion-title .faq-icon {
            transition: transform var(--transition-normal);
            flex-shrink: 0;
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .faq-accordion .accordion-item.active .accordion-title .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-accordion .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
        }
        .faq-accordion .accordion-item.active .accordion-content {
            max-height: 400px;
            padding: 0 20px 18px;
        }
        .faq-accordion .accordion-content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ============ CTA BANNER ============ */
        .cta-banner {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-banner h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-banner p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-banner .btn {
            position: relative;
            z-index: 1;
        }
        @media (max-width: 520px) {
            .cta-banner {
                padding: 32px 20px;
            }
            .cta-banner h2 {
                font-size: 1.4rem;
            }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 50px 0 30px;
            font-size: 0.9rem;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .site-footer .footer-col h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .site-footer .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }
        .site-footer .footer-col ul li a {
            color: var(--text-on-dark-muted);
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }
        .site-footer .footer-col ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 0.8rem;
            color: var(--text-on-dark-muted);
            align-items: center;
            justify-content: center;
            text-align: center;
        }
        .site-footer .footer-bottom a {
            color: var(--text-on-dark-muted);
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        @media (max-width: 520px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                gap: 6px;
            }
        }

        /* ============ IMAGE WRAPPER ============ */
        .img-rounded {
            border-radius: var(--radius-lg);
            overflow: hidden;
        }
        .img-shadow {
            box-shadow: var(--shadow-lg);
        }
        .img-bordered {
            border: 2px solid var(--border-light);
        }

        /* ============ BADGE ============ */
        .badge {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .badge-primary {
            background: rgba(196, 30, 58, 0.1);
            color: var(--primary);
        }
        .badge-accent {
            background: rgba(212, 160, 23, 0.12);
            color: #8b6914;
        }
        .badge-green {
            background: rgba(46, 125, 50, 0.1);
            color: #2e7d32;
        }

        /* ============ ANIMATION ============ */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-in {
            animation: fadeInUp 0.6s ease forwards;
        }
        .animate-delay-1 {
            animation-delay: 0.1s;
        }
        .animate-delay-2 {
            animation-delay: 0.2s;
        }
        .animate-delay-3 {
            animation-delay: 0.3s;
        }

        /* ============ OVERRIDE FOUNDATION ============ */
        .row {
            max-width: var(--container-max);
        }
        .row .row {
            max-width: none;
        }
        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-lg {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #C41E3A;
            --primary-dark: #9B1A2E;
            --primary-light: #E8455C;
            --accent: #D4A017;
            --accent-light: #F0C75E;
            --bg-dark: #0d0d1a;
            --bg-dark-2: #141428;
            --bg-card: #1a1a30;
            --bg-section: #fafafa;
            --bg-white: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5e;
            --text-light: #6e6e82;
            --text-on-dark: #e8e8f0;
            --text-on-dark-muted: #a0a0b8;
            --border: #e0e0e8;
            --border-light: #eeeef4;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.18);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.07);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-stack: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
            --bottom-tab-height: 60px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-stack);
            color: var(--text-primary);
            background: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            padding-bottom: 0;
            overflow-x: hidden;
            margin: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            outline: none;
        }

        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .header-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }

        .header-logo:hover {
            color: var(--primary-dark);
        }

        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .header-nav a:hover {
            color: var(--primary);
            background: rgba(196, 30, 58, 0.04);
        }

        .header-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: rgba(196, 30, 58, 0.07);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-normal);
            white-space: nowrap;
            cursor: pointer;
            border: none;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(196, 30, 58, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(196, 30, 58, 0.4);
            transform: translateY(-1px);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 1px 4px rgba(196, 30, 58, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 2px 8px rgba(212, 160, 23, 0.3);
        }

        .btn-accent:hover {
            background: #c08e15;
            box-shadow: 0 4px 16px rgba(212, 160, 23, 0.4);
            transform: translateY(-1px);
            color: #fff;
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
            font-weight: 700;
        }

        .btn-sm {
            padding: 7px 16px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }

        .btn-xl {
            padding: 18px 40px;
            font-size: 1.2rem;
            border-radius: var(--radius-xl);
            font-weight: 700;
            letter-spacing: 0.02em;
        }

        /* ============ MOBILE BOTTOM TABS ============ */
        .bottom-tabs {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.08);
            height: var(--bottom-tab-height);
            padding: 0 8px;
        }

        .bottom-tabs .tabs-inner {
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 100%;
            max-width: 500px;
            margin: 0 auto;
        }

        .bottom-tabs .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            font-size: 0.7rem;
            color: var(--text-light);
            font-weight: 500;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            min-width: 50px;
            text-align: center;
        }

        .bottom-tabs .tab-item i {
            font-size: 1.2rem;
            transition: color var(--transition-fast);
        }

        .bottom-tabs .tab-item.active {
            color: var(--primary);
            font-weight: 700;
        }

        .bottom-tabs .tab-item.active i {
            color: var(--primary);
        }

        .bottom-tabs .tab-item:hover {
            color: var(--primary);
            background: rgba(196, 30, 58, 0.04);
        }

        /* ============ HERO SECTION ============ */
        .hero-section {
            position: relative;
            background: var(--bg-dark);
            background-image: linear-gradient(160deg, rgba(13, 13, 26, 0.92) 0%, rgba(20, 20, 40, 0.88) 40%, rgba(26, 26, 48, 0.85) 100%), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 70px 0 80px;
            min-height: 520px;
            display: flex;
            align-items: center;
            color: var(--text-on-dark);
            overflow: hidden;
        }

        .hero-section .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .hero-left .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(212, 160, 23, 0.2);
            border: 1px solid rgba(212, 160, 23, 0.4);
            color: var(--accent-light);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

        .hero-left .hero-badge i {
            font-size: 0.9rem;
        }

        .hero-left h1 {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            margin: 0 0 16px;
            color: #fff;
            letter-spacing: -0.02em;
        }

        .hero-left h1 .highlight {
            color: var(--accent-light);
            position: relative;
            display: inline-block;
        }

        .hero-left .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-on-dark-muted);
            margin-bottom: 10px;
            line-height: 1.6;
        }

        .hero-left .hero-reward-preview {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin: 20px 0 8px;
        }

        .hero-left .reward-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            color: #fff;
            font-weight: 500;
            white-space: nowrap;
        }

        .hero-left .reward-tag i {
            color: var(--accent-light);
        }

        .hero-left .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-top: 28px;
        }

        .hero-right {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-xl);
            padding: 36px 30px;
            backdrop-filter: blur(6px);
        }

        .hero-right .invite-card-label {
            font-size: 0.85rem;
            color: var(--text-on-dark-muted);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .hero-right .invite-card-title {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 20px;
        }

        .hero-right .progress-info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 10px;
            font-size: 0.9rem;
            color: var(--text-on-dark-muted);
        }

        .hero-right .progress-info strong {
            color: var(--accent-light);
            font-size: 1.1rem;
        }

        .hero-right .progress-bar-wrap {
            background: rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            height: 14px;
            overflow: hidden;
            margin-bottom: 24px;
            position: relative;
        }

        .hero-right .progress-bar-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            border-radius: 20px;
            width: 60%;
            transition: width 0.6s ease;
            position: relative;
        }

        .hero-right .progress-bar-fill::after {
            content: '';
            position: absolute;
            right: 0;
            top: 0;
            width: 28px;
            height: 100%;
            background: rgba(255, 255, 255, 0.4);
            border-radius: 50%;
            transform: translateX(50%);
        }

        .hero-right .reward-tiers {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
            margin-bottom: 24px;
        }

        .hero-right .tier-item {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 12px 14px;
            text-align: center;
            transition: all var(--transition-fast);
        }

        .hero-right .tier-item.reached {
            border-color: var(--accent);
            background: rgba(212, 160, 23, 0.1);
        }

        .hero-right .tier-item .tier-count {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--accent-light);
        }

        .hero-right .tier-item .tier-reward {
            font-size: 0.8rem;
            color: var(--text-on-dark-muted);
            margin-top: 2px;
        }

        .hero-right .tier-item.reached .tier-reward {
            color: #fff;
        }

        .hero-right .invite-code-row {
            display: flex;
            gap: 10px;
            align-items: center;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            padding: 6px 6px 6px 16px;
            border: 1px dashed rgba(255, 255, 255, 0.25);
            margin-bottom: 16px;
        }

        .hero-right .invite-code-row .code-text {
            font-family: 'Courier New', monospace;
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.05em;
            flex: 1;
        }

        .hero-right .invite-code-row .btn-copy {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border: none;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.85rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .hero-right .invite-code-row .btn-copy:hover {
            background: rgba(255, 255, 255, 0.25);
        }

        .hero-right .btn-invite {
            width: 100%;
            text-align: center;
            padding: 14px;
            font-size: 1.05rem;
            font-weight: 700;
            border-radius: var(--radius-md);
            background: var(--accent);
            color: #fff;
            cursor: pointer;
            border: none;
            transition: all var(--transition-normal);
            letter-spacing: 0.02em;
        }

        .hero-right .btn-invite:hover {
            background: #c08e15;
            box-shadow: 0 6px 24px rgba(212, 160, 23, 0.4);
            transform: translateY(-2px);
        }

        /* ============ SECTION COMMON ============ */
        .section {
            padding: 60px 0;
        }

        .section-dark {
            background: var(--bg-section);
        }

        .section-accent-bg {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-header .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 0 0 10px;
            letter-spacing: -0.01em;
        }

        .section-dark .section-header h2,
        .section-accent-bg .section-header h2 {
            color: #fff;
        }

        .section-header .section-desc {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .section-dark .section-header .section-desc,
        .section-accent-bg .section-header .section-desc {
            color: var(--text-on-dark-muted);
        }

        /* ============ STEPS SECTION ============ */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            counter-reset: step;
        }

        .step-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            position: relative;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-card);
            text-align: center;
        }

        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }

        .step-card .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 800;
            font-size: 1.3rem;
            margin-bottom: 16px;
        }

        .step-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .step-card p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ============ GAME CARDS ============ */
        .game-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .game-mini-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            text-align: center;
        }

        .game-mini-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }

        .game-mini-card .card-img-wrap {
            height: 140px;
            overflow: hidden;
            position: relative;
        }

        .game-mini-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .game-mini-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }

        .game-mini-card .card-body {
            padding: 16px 14px;
        }

        .game-mini-card .card-body h4 {
            font-size: 1rem;
            font-weight: 700;
            margin: 0 0 4px;
            color: var(--text-primary);
        }

        .game-mini-card .card-body .game-level {
            font-size: 0.8rem;
            color: var(--primary);
            font-weight: 600;
        }

        /* ============ GIFT SECTION ============ */
        .gift-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .gift-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            border: 2px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            position: relative;
        }

        .gift-card.featured {
            border-color: var(--accent);
            box-shadow: var(--shadow-lg);
            background: linear-gradient(180deg, #fffef8 0%, #fff 40%);
        }

        .gift-card.featured::before {
            content: '最受欢迎';
            position: absolute;
            top: -13px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: #fff;
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .gift-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .gift-card .gift-icon {
            font-size: 2.6rem;
            margin-bottom: 12px;
            color: var(--primary);
        }

        .gift-card.featured .gift-icon {
            color: var(--accent);
        }

        .gift-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .gift-card .gift-value {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--primary);
            margin: 8px 0;
        }

        .gift-card.featured .gift-value {
            color: var(--accent);
        }

        .gift-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin: 0;
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            background: none;
            border: none;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
            line-height: 1.4;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            font-size: 0.9rem;
            color: var(--text-light);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 22px 18px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-2) 100%);
            padding: 60px 0;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(212, 160, 23, 0.1);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 1.1rem;
            color: var(--text-on-dark-muted);
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* ============ STATS BAR ============ */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-item {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 16px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
        }

        .stat-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .stat-item .stat-number {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 500;
        }

        .stat-item .stat-icon {
            font-size: 1.6rem;
            color: var(--accent);
            margin-bottom: 8px;
        }

        /* ============ COMMUNITY SECTION ============ */
        .community-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .community-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
        }

        .community-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }

        .community-card .comm-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 14px;
        }

        .community-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .community-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 32px;
        }

        .site-footer .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }

        .site-footer .footer-col ul li a {
            color: var(--text-on-dark-muted);
            transition: color var(--transition-fast);
            font-size: 0.9rem;
        }

        .site-footer .footer-col ul li a:hover {
            color: var(--accent-light);
        }

        .site-footer .footer-logo-text {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary-light);
            letter-spacing: -0.01em;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-on-dark-muted);
            justify-content: center;
            text-align: center;
        }

        .site-footer .footer-bottom a {
            color: var(--text-on-dark-muted);
        }

        .site-footer .footer-bottom a:hover {
            color: var(--accent-light);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .header-nav a {
                padding: 6px 10px;
                font-size: 0.85rem;
            }

            .hero-section .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .hero-left h1 {
                font-size: 2.2rem;
            }

            .hero-right {
                padding: 28px 20px;
            }

            .game-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }

            .gift-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }

            .community-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }

            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .header-nav {
                display: none;
            }

            .header-cta {
                display: none;
            }

            .bottom-tabs {
                display: block;
            }

            body {
                padding-bottom: var(--bottom-tab-height);
            }

            .site-header {
                height: 56px;
            }

            .header-logo {
                font-size: 1.2rem;
            }

            .header-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.9rem;
            }

            .hero-section {
                padding: 40px 0 50px;
                min-height: auto;
            }

            .hero-left h1 {
                font-size: 1.8rem;
            }

            .hero-left .hero-subtitle {
                font-size: 0.95rem;
            }

            .hero-right {
                padding: 22px 16px;
            }

            .hero-right .reward-tiers {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .hero-right .tier-item {
                padding: 10px 8px;
            }

            .hero-right .tier-item .tier-count {
                font-size: 1.1rem;
            }

            .section {
                padding: 40px 0;
            }

            .section-header h2 {
                font-size: 1.5rem;
            }

            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .game-cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .gift-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .community-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .stat-item .stat-number {
                font-size: 1.8rem;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .site-footer .footer-bottom {
                flex-direction: column;
                gap: 8px;
                align-items: center;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }

            .hero-left .hero-actions {
                flex-direction: column;
                gap: 10px;
            }

            .hero-left .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }

            .hero-right .invite-code-row {
                flex-direction: column;
                gap: 8px;
                align-items: stretch;
                text-align: center;
            }

            .hero-right .btn-invite {
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .hero-left h1 {
                font-size: 1.5rem;
            }

            .hero-right .reward-tiers {
                grid-template-columns: 1fr 1fr;
                gap: 6px;
            }

            .hero-right .tier-item {
                padding: 8px 6px;
            }

            .game-cards-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .game-mini-card .card-img-wrap {
                height: 100px;
            }

            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .stat-item {
                padding: 20px 12px;
            }

            .stat-item .stat-number {
                font-size: 1.5rem;
            }

            .section-header h2 {
                font-size: 1.3rem;
            }

            .bottom-tabs .tab-item {
                font-size: 0.65rem;
                padding: 2px 4px;
                min-width: 40px;
            }

            .bottom-tabs .tab-item i {
                font-size: 1rem;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #C41E3A;
            --primary-dark: #9B1A2E;
            --primary-light: #E8455C;
            --accent: #D4A017;
            --accent-light: #F0C75E;
            --accent-dark: #B8860B;
            --bg-dark: #0d0d1a;
            --bg-dark-2: #141428;
            --bg-card: #1a1a30;
            --bg-section: #fafafa;
            --bg-white: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5e;
            --text-light: #6e6e82;
            --text-on-dark: #e8e8f0;
            --text-on-dark-muted: #a0a0b8;
            --border: #e0e0e8;
            --border-light: #eeeef4;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.18);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.07);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-stack: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
            --bottom-tab-height: 60px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-stack);
            color: var(--text-primary);
            background: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            padding-bottom: 0;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.3;
            font-weight: 700;
        }
        p {
            margin: 0;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .header-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }
        .header-logo:hover {
            color: var(--primary-dark);
        }
        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .header-nav a:hover {
            color: var(--primary);
            background: rgba(196, 30, 58, 0.04);
        }
        .header-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: rgba(196, 30, 58, 0.07);
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        /* ============ BUTTONS ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-normal);
            white-space: nowrap;
            cursor: pointer;
            border: none;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 2px 8px rgba(196, 30, 58, 0.3);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary-dark), #7a1524);
            color: #fff;
            box-shadow: 0 4px 16px rgba(196, 30, 58, 0.45);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 1px 4px rgba(196, 30, 58, 0.25);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-sm {
            padding: 7px 16px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 1.05rem;
            border-radius: var(--radius-lg);
        }
        .btn-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            box-shadow: 0 2px 8px rgba(212, 160, 23, 0.35);
        }
        .btn-accent:hover {
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
            color: #1a1a2e;
            box-shadow: 0 4px 16px rgba(212, 160, 23, 0.5);
            transform: translateY(-1px);
        }

        /* ============ SECTIONS ============ */
        .section {
            padding: 70px 0;
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }
        .section-dark-2 {
            background: var(--bg-dark-2);
            color: var(--text-on-dark);
        }
        .section-light {
            background: var(--bg-section);
        }
        .section-white {
            background: var(--bg-white);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: rgba(196, 30, 58, 0.08);
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }
        .section-label-light {
            color: var(--accent-light);
            background: rgba(240, 199, 94, 0.12);
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
            color: var(--text-primary);
        }
        .section-title-light {
            color: var(--text-on-dark);
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.6;
        }
        .section-subtitle-light {
            color: var(--text-on-dark-muted);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header-left {
            text-align: left;
            margin-bottom: 48px;
        }

        /* ============ CARDS ============ */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            height: 100%;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .card-dark {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.06);
            color: var(--text-on-dark);
        }
        .card-dark:hover {
            border-color: rgba(255, 255, 255, 0.15);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
        }
        .card-accent-border {
            border-top: 3px solid var(--accent);
        }
        .card-primary-border {
            border-top: 3px solid var(--primary);
        }

        /* ============ BADGE ============ */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }
        .badge-primary {
            background: rgba(196, 30, 58, 0.1);
            color: var(--primary);
        }
        .badge-accent {
            background: rgba(212, 160, 23, 0.15);
            color: var(--accent-dark);
        }
        .badge-gold {
            background: linear-gradient(135deg, #f9d423, #e6a800);
            color: #3d2b00;
        }
        .badge-diamond {
            background: linear-gradient(135deg, #b8e6ff, #5ba4cf);
            color: #0a2a3d;
        }

        /* ============ HERO ============ */
        .hero-vip {
            position: relative;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 560px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-vip::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 13, 26, 0.92) 0%, rgba(20, 20, 40, 0.85) 50%, rgba(13, 13, 26, 0.9) 100%);
            z-index: 1;
        }
        .hero-vip .hero-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 48px;
            width: 100%;
        }
        .hero-vip .hero-left {
            flex: 1;
            max-width: 580px;
        }
        .hero-vip .hero-right {
            flex: 0 0 380px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .hero-vip .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212, 160, 23, 0.2);
            border: 1px solid rgba(212, 160, 23, 0.4);
            color: var(--accent-light);
            padding: 8px 18px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 20px;
            letter-spacing: 0.04em;
        }
        .hero-vip .hero-title {
            font-size: 2.8rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -0.03em;
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .hero-vip .hero-title .accent-text {
            color: var(--accent-light);
            position: relative;
        }
        .hero-vip .hero-desc {
            font-size: 1.1rem;
            color: var(--text-on-dark-muted);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 480px;
        }
        .hero-vip .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .rank-card-mini {
            background: rgba(26, 26, 48, 0.85);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            backdrop-filter: blur(8px);
            transition: all var(--transition-normal);
        }
        .rank-card-mini:hover {
            border-color: rgba(212, 160, 23, 0.5);
            background: rgba(26, 26, 48, 0.95);
            transform: translateX(4px);
        }
        .rank-card-mini .rank-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .rank-card-mini .rank-num.top1 {
            background: linear-gradient(135deg, #f9d423, #e6a800);
            font-size: 1.3rem;
            box-shadow: 0 0 20px rgba(249, 212, 35, 0.4);
        }
        .rank-card-mini .rank-num.top2 {
            background: linear-gradient(135deg, #c0c0c0, #9e9e9e);
        }
        .rank-card-mini .rank-num.top3 {
            background: linear-gradient(135deg, #cd7f32, #a0522d);
        }
        .rank-card-mini .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-card-mini .rank-name {
            font-weight: 700;
            color: #fff;
            font-size: 0.95rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .rank-card-mini .rank-detail {
            font-size: 0.78rem;
            color: var(--text-on-dark-muted);
            margin-top: 2px;
        }
        .rank-card-mini .rank-value {
            font-weight: 800;
            color: var(--accent-light);
            font-size: 1rem;
            flex-shrink: 0;
        }

        /* ============ VIP TIER CARDS ============ */
        .tier-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 2px solid var(--border-light);
            transition: all var(--transition-normal);
            position: relative;
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .tier-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-xl);
        }
        .tier-card.featured {
            border-color: var(--accent);
            box-shadow: 0 4px 24px rgba(212, 160, 23, 0.2);
            background: linear-gradient(180deg, #fffef9 0%, #ffffff 100%);
        }
        .tier-card .tier-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .tier-icon.bronze {
            background: linear-gradient(135deg, #cd7f32, #a0522d);
            color: #fff;
        }
        .tier-icon.silver {
            background: linear-gradient(135deg, #c0c0c0, #8a8a8a);
            color: #fff;
        }
        .tier-icon.gold {
            background: linear-gradient(135deg, #f9d423, #c8960c);
            color: #3d2b00;
        }
        .tier-icon.platinum {
            background: linear-gradient(135deg, #5ba4cf, #2d6a9f);
            color: #fff;
        }
        .tier-icon.diamond {
            background: linear-gradient(135deg, #b8e6ff, #4a90d9);
            color: #0a2a3d;
            box-shadow: 0 0 24px rgba(74, 144, 217, 0.4);
        }
        .tier-card .tier-name {
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .tier-card .tier-points {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 14px;
        }
        .tier-card .tier-benefits {
            list-style: none;
            padding: 0;
            margin: 0 0 20px 0;
            text-align: left;
            width: 100%;
            flex: 1;
        }
        .tier-card .tier-benefits li {
            padding: 6px 0;
            font-size: 0.88rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .tier-card .tier-benefits li:last-child {
            border-bottom: none;
        }
        .tier-card .tier-benefits li i {
            color: var(--accent);
            font-size: 0.75rem;
            flex-shrink: 0;
        }

        /* ============ STATS ROW ============ */
        .stat-item {
            text-align: center;
            padding: 20px;
        }
        .stat-item .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1;
        }
        .stat-item .stat-number.gold-num {
            color: var(--accent);
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 8px;
        }
        .stat-item-dark .stat-number {
            color: #fff;
        }
        .stat-item-dark .stat-label {
            color: var(--text-on-dark-muted);
        }

        /* ============ PROCESS TIMELINE ============ */
        .process-step {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 20px 0;
            position: relative;
        }
        .process-step::before {
            content: '';
            position: absolute;
            left: 28px;
            top: 60px;
            bottom: 0;
            width: 2px;
            background: var(--border);
            z-index: 0;
        }
        .process-step:last-child::before {
            display: none;
        }
        .process-step .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 900;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            z-index: 1;
            position: relative;
        }
        .process-step .step-content {
            flex: 1;
            padding-top: 6px;
        }
        .process-step .step-title {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 4px;
            color: var(--text-primary);
        }
        .process-step .step-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ============ COMPARISON TABLE ============ */
        .compare-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
            background: var(--bg-white);
        }
        .compare-table thead th {
            background: var(--bg-dark);
            color: #fff;
            padding: 16px 18px;
            font-weight: 700;
            font-size: 0.9rem;
            text-align: center;
            white-space: nowrap;
        }
        .compare-table thead th:first-child {
            text-align: left;
            border-radius: var(--radius-lg) 0 0 0;
        }
        .compare-table thead th:last-child {
            border-radius: 0 var(--radius-lg) 0 0;
        }
        .compare-table tbody td {
            padding: 14px 18px;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .compare-table tbody td:first-child {
            text-align: left;
            font-weight: 600;
            color: var(--text-primary);
        }
        .compare-table tbody tr:hover td {
            background: rgba(196, 30, 58, 0.02);
        }
        .compare-table .check-icon {
            color: #22c55e;
            font-size: 1rem;
        }
        .compare-table .dash-icon {
            color: #ccc;
        }
        .compare-table .star-icon {
            color: var(--accent);
        }

        /* ============ TESTIMONIAL ============ */
        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            position: relative;
            height: 100%;
        }
        .testimonial-card::before {
            content: '\201C';
            position: absolute;
            top: 12px;
            left: 20px;
            font-size: 4rem;
            color: rgba(196, 30, 58, 0.08);
            font-family: serif;
            line-height: 1;
            pointer-events: none;
        }
        .testimonial-card .testimonial-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .testimonial-card .author-avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .testimonial-card .author-name {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
        }
        .testimonial-card .author-tier {
            font-size: 0.78rem;
            color: var(--accent);
            font-weight: 600;
        }

        /* ============ FAQ ============ */
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 20px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }
        .faq-item .faq-question {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: color var(--transition-fast);
        }
        .faq-item:hover .faq-question {
            color: var(--primary);
        }
        .faq-item .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(196, 30, 58, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            flex-shrink: 0;
            transition: all var(--transition-normal);
        }
        .faq-item.open .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 12px;
        }

        /* ============ CTA BANNER ============ */
        .cta-banner {
            background: linear-gradient(135deg, var(--bg-dark), var(--bg-dark-2));
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(212, 160, 23, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-banner .cta-title {
            font-size: 2rem;
            font-weight: 900;
            color: #fff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-banner .cta-desc {
            color: var(--text-on-dark-muted);
            font-size: 1rem;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-banner .cta-btns {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark-muted);
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .site-footer .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 14px;
            font-weight: 700;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: var(--text-on-dark-muted);
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }
        .site-footer ul li a:hover {
            color: var(--accent-light);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 0.8rem;
            color: var(--text-on-dark-muted);
            justify-content: center;
            text-align: center;
        }
        .site-footer .footer-bottom a {
            color: var(--text-on-dark-muted);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent-light);
        }

        /* ============ MOBILE BOTTOM TAB ============ */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.08);
            height: var(--bottom-tab-height);
            padding: 0 8px;
        }
        .bottom-tab-nav .tab-inner {
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 100%;
            max-width: 500px;
            margin: 0 auto;
        }
        .bottom-tab-nav .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            font-size: 0.68rem;
            color: var(--text-light);
            padding: 4px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            text-decoration: none;
            flex: 1;
            min-width: 0;
        }
        .bottom-tab-nav .tab-item i {
            font-size: 1.2rem;
            transition: color var(--transition-fast);
        }
        .bottom-tab-nav .tab-item.active {
            color: var(--primary);
            font-weight: 700;
        }
        .bottom-tab-nav .tab-item.active i {
            color: var(--primary);
        }
        .bottom-tab-nav .tab-item:hover {
            color: var(--primary);
            background: rgba(196, 30, 58, 0.04);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .header-nav {
                gap: 0;
            }
            .header-nav a {
                padding: 6px 10px;
                font-size: 0.82rem;
            }
            .header-logo {
                font-size: 1.3rem;
            }
            .hero-vip .hero-content {
                flex-direction: column;
                gap: 32px;
            }
            .hero-vip .hero-right {
                flex: 0 0 auto;
                width: 100%;
                max-width: 500px;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .hero-vip .hero-right .rank-card-mini {
                flex: 1 1 140px;
                min-width: 130px;
            }
            .hero-vip .hero-title {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .header-nav {
                display: none;
            }
            .header-cta .btn-outline {
                display: none;
            }
            .header-cta .btn-primary {
                padding: 7px 14px;
                font-size: 0.82rem;
            }
            .header-logo {
                font-size: 1.2rem;
            }
            .header-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            .site-header {
                height: 56px;
            }
            :root {
                --nav-height: 56px;
            }
            .bottom-tab-nav {
                display: block;
            }
            body {
                padding-bottom: var(--bottom-tab-height);
            }
            .hero-vip {
                min-height: 440px;
            }
            .hero-vip .hero-title {
                font-size: 1.8rem;
            }
            .hero-vip .hero-desc {
                font-size: 0.95rem;
            }
            .hero-vip .hero-right {
                flex-direction: column;
                max-width: 100%;
            }
            .hero-vip .hero-right .rank-card-mini {
                flex: 1 1 auto;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
            }
            .tier-card {
                padding: 20px 16px;
            }
            .tier-card .tier-icon {
                width: 48px;
                height: 48px;
                font-size: 1.3rem;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
            .cta-banner {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-banner .cta-title {
                font-size: 1.5rem;
            }
            .process-step .step-num {
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
            }
            .process-step::before {
                left: 22px;
                top: 50px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer {
                padding: 32px 0 20px;
            }
            .faq-item .faq-question {
                font-size: 0.95rem;
            }
            .compare-table thead th,
            .compare-table tbody td {
                padding: 10px 12px;
                font-size: 0.78rem;
            }
        }

        @media (max-width: 520px) {
            .hero-vip {
                min-height: 380px;
            }
            .hero-vip .hero-title {
                font-size: 1.5rem;
            }
            .hero-vip .hero-btns {
                flex-direction: column;
                gap: 10px;
            }
            .hero-vip .hero-btns .btn {
                width: 100%;
                text-align: center;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .cta-banner .cta-btns {
                flex-direction: column;
            }
            .cta-banner .cta-btns .btn {
                width: 100%;
            }
            .bottom-tab-nav .tab-item {
                font-size: 0.62rem;
                padding: 3px 6px;
            }
            .bottom-tab-nav .tab-item i {
                font-size: 1rem;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #C41E3A;
            --primary-dark: #9B1A2E;
            --primary-light: #E8455C;
            --accent: #D4A017;
            --accent-light: #F0C75E;
            --accent-glow: #FFD700;
            --bg-dark: #0d0d1a;
            --bg-dark-2: #141428;
            --bg-card: #1a1a30;
            --bg-section: #fafafa;
            --bg-white: #ffffff;
            --bg-warm: #fffdf7;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5e;
            --text-light: #6e6e82;
            --text-on-dark: #e8e8f0;
            --text-on-dark-muted: #a0a0b8;
            --border: #e0e0e8;
            --border-light: #eeeef4;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.18);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.07);
            --shadow-glow: 0 0 24px rgba(212, 160, 23, 0.35);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-stack: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
            --bottom-tab-height: 60px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            box-sizing: border-box;
        }

        *,
        *::before,
        *::after {
            box-sizing: inherit;
        }

        body {
            font-family: var(--font-stack);
            color: var(--text-primary);
            background: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            padding-bottom: 0;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            outline: none;
            background: none;
        }

        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-medium {
            max-width: 1080px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            gap: 16px;
        }

        .header-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .header-logo:hover {
            color: var(--primary-dark);
        }

        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .header-nav::-webkit-scrollbar {
            display: none;
        }

        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-nav a:hover {
            color: var(--primary);
            background: rgba(196, 30, 58, 0.04);
        }

        .header-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: rgba(196, 30, 58, 0.07);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-normal);
            white-space: nowrap;
            cursor: pointer;
            border: none;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(196, 30, 58, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(196, 30, 58, 0.4);
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #1a1a2e;
            font-weight: 700;
            box-shadow: 0 2px 12px rgba(212, 160, 23, 0.35);
            border-radius: var(--radius-full);
            padding: 12px 28px;
            font-size: 1rem;
        }

        .btn-accent:hover {
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
            color: #1a1a2e;
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 1.05rem;
            border-radius: var(--radius-full);
        }

        .btn-sm {
            padding: 7px 16px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            box-shadow: var(--shadow-md);
        }

        .btn-white:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            color: var(--primary-dark);
        }

        /* ============ MOBILE BOTTOM TABS ============ */
        .bottom-tabs {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: #fff;
            border-top: 1px solid var(--border-light);
            box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.08);
            height: var(--bottom-tab-height);
            padding: 0 8px;
        }

        .bottom-tabs-inner {
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 100%;
            max-width: 500px;
            margin: 0 auto;
        }

        .bottom-tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            flex: 1;
            height: 100%;
            color: var(--text-light);
            font-size: 0.7rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
            border-radius: 0;
            padding: 4px 2px;
            position: relative;
        }

        .bottom-tab-item i {
            font-size: 1.25rem;
            transition: all var(--transition-fast);
        }

        .bottom-tab-item.active {
            color: var(--primary);
            font-weight: 700;
        }

        .bottom-tab-item.active::before {
            content: '';
            position: absolute;
            top: 0;
            left: 20%;
            right: 20%;
            height: 3px;
            background: var(--primary);
            border-radius: 0 0 3px 3px;
        }

        .bottom-tab-item:hover {
            color: var(--primary);
        }

        /* ============ HERO - 无大图首屏 ============ */
        .hero-alt {
            position: relative;
            background: var(--bg-white);
            padding: 60px 0 50px;
            overflow: hidden;
            border-bottom: 1px solid var(--border-light);
        }

        .hero-alt::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(212, 160, 23, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-alt::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(196, 30, 58, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-alt .hero-inner {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .hero-alt .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212, 160, 23, 0.1);
            color: var(--accent);
            border: 1px solid rgba(212, 160, 23, 0.25);
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.9rem;
            width: fit-content;
            animation: pulse-badge 2.5s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(212, 160, 23, 0.3);
            }
            50% {
                box-shadow: 0 0 0 14px rgba(212, 160, 23, 0);
            }
        }

        .hero-alt .hero-title {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--text-primary);
            line-height: 1.2;
            letter-spacing: -0.02em;
            max-width: 700px;
        }

        .hero-alt .hero-title .highlight {
            color: var(--primary);
            position: relative;
        }

        .hero-alt .hero-title .highlight-accent {
            color: var(--accent);
            position: relative;
        }

        .hero-alt .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 580px;
            line-height: 1.6;
        }

        .hero-alt .icon-matrix {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .hero-alt .icon-matrix-item {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-section);
            padding: 10px 18px;
            border-radius: var(--radius-full);
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: all var(--transition-normal);
            border: 1px solid transparent;
        }

        .hero-alt .icon-matrix-item:hover {
            background: #fff;
            border-color: var(--border);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            color: var(--text-primary);
        }

        .hero-alt .icon-matrix-item i {
            color: var(--primary);
            font-size: 1.1rem;
        }

        .hero-alt .status-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            align-items: center;
            background: var(--bg-dark);
            padding: 20px 28px;
            border-radius: var(--radius-lg);
            color: var(--text-on-dark);
        }

        .hero-alt .status-bar-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            font-weight: 500;
        }

        .hero-alt .status-bar-item .status-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #4caf50;
            animation: blink-dot 1.8s ease-in-out infinite;
        }

        @keyframes blink-dot {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 6px #4caf50;
            }
            50% {
                opacity: 0.4;
                box-shadow: 0 0 2px #4caf50;
            }
        }

        .hero-alt .status-bar-item .status-num {
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--accent-light);
        }

        /* ============ SECTIONS ============ */
        .section {
            padding: 60px 0;
        }

        .section-alt {
            padding: 60px 0;
            background: var(--bg-section);
        }

        .section-dark {
            padding: 60px 0;
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }

        .section-warm {
            padding: 60px 0;
            background: var(--bg-warm);
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            margin: 0 0 12px;
        }

        .section-dark .section-header h2 {
            color: var(--text-on-dark);
        }

        .section-header .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
        }

        .section-dark .section-header .section-desc {
            color: var(--text-on-dark-muted);
        }

        /* ============ CARDS ============ */
        .card-promo {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .card-promo:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .card-promo .card-tag {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--primary);
            color: #fff;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.03em;
        }

        .card-promo .card-tag.hot {
            background: linear-gradient(135deg, #ff4757, #ff6b81);
            animation: tag-pulse 2s ease-in-out infinite;
        }

        @keyframes tag-pulse {
            0%,
            100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.06);
            }
        }

        .card-promo .card-tag.new {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #1a1a2e;
        }

        .card-promo .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(196, 30, 58, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .card-promo h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-primary);
        }

        .card-promo .card-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.5;
            flex-grow: 1;
            margin-bottom: 12px;
        }

        .card-promo .card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--text-light);
            margin-top: auto;
        }

        .card-promo .card-meta i {
            color: var(--accent);
        }

        .card-highlight {
            background: linear-gradient(135deg, #fffdf7, #fff8e7);
            border: 2px solid rgba(212, 160, 23, 0.3);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            position: relative;
            overflow: hidden;
            transition: all var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .card-highlight:hover {
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
            border-color: var(--accent);
        }

        .card-highlight .highlight-ribbon {
            position: absolute;
            top: 20px;
            right: -32px;
            background: var(--accent);
            color: #1a1a2e;
            padding: 6px 40px;
            font-size: 0.75rem;
            font-weight: 800;
            transform: rotate(45deg);
            letter-spacing: 0.04em;
        }

        .card-highlight h3 {
            font-size: 1.3rem;
            font-weight: 800;
            margin: 0 0 8px;
            color: var(--text-primary);
        }

        .card-highlight .highlight-value {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--accent);
            margin: 8px 0;
            letter-spacing: -0.02em;
        }

        .card-highlight .card-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            flex-grow: 1;
        }

        /* ============ STATS ROW ============ */
        .stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
        }

        .stat-item {
            text-align: center;
            padding: 20px 28px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            min-width: 140px;
            flex: 1;
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
        }

        .stat-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .stat-item .stat-num {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1;
        }

        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 6px;
            font-weight: 500;
        }

        /* ============ STEPS / PROCESS ============ */
        .steps-list {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            counter-reset: step;
        }

        .step-item {
            flex: 1;
            min-width: 200px;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            position: relative;
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            counter-increment: step;
        }

        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .step-item::before {
            content: counter(step);
            position: absolute;
            top: -16px;
            left: 20px;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1rem;
        }

        .step-item h4 {
            margin-top: 8px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-normal);
        }

        .faq-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--text-primary);
            transition: color var(--transition-fast);
            user-select: none;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            transition: transform var(--transition-normal);
            font-size: 0.85rem;
            color: var(--text-light);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            padding: 0 24px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
        }

        /* ============ CTA BANNER ============ */
        .cta-banner {
            background: linear-gradient(135deg, var(--bg-dark), var(--bg-dark-2));
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            text-align: center;
            color: var(--text-on-dark);
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(212, 160, 23, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: -30px;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(196, 30, 58, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-banner h2 {
            font-size: 2rem;
            font-weight: 900;
            margin: 0 0 12px;
            position: relative;
            z-index: 1;
        }

        .cta-banner p {
            font-size: 1.05rem;
            color: var(--text-on-dark-muted);
            margin: 0 0 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-banner .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* ============ IMAGE BLOCK ============ */
        .img-block {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .img-block img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform var(--transition-slow);
        }

        .img-block:hover img {
            transform: scale(1.03);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }

        .site-footer .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin: 0 0 14px;
            color: #fff;
        }

        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }

        .site-footer .footer-col ul li a {
            color: var(--text-on-dark-muted);
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }

        .site-footer .footer-col ul li a:hover {
            color: var(--accent-light);
        }

        .site-footer .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-on-dark-muted);
            justify-content: center;
            align-items: center;
            text-align: center;
        }

        .site-footer .footer-bottom a {
            color: var(--text-on-dark-muted);
        }

        .site-footer .footer-bottom a:hover {
            color: var(--accent-light);
        }

        .site-footer .footer-bottom span {
            white-space: nowrap;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .header-nav a {
                padding: 6px 10px;
                font-size: 0.82rem;
            }
            .hero-alt .hero-title {
                font-size: 2.2rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .stats-row {
                gap: 12px;
            }
            .stat-item {
                min-width: 120px;
                padding: 16px 20px;
            }
            .stat-item .stat-num {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .header-nav {
                display: none;
            }
            .header-cta .btn-outline {
                display: none;
            }
            .header-cta .btn-primary {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
            .header-logo {
                font-size: 1.2rem;
            }
            .header-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            .site-header {
                height: 56px;
            }
            .bottom-tabs {
                display: block;
            }
            body {
                padding-bottom: var(--bottom-tab-height);
            }
            .hero-alt {
                padding: 36px 0 32px;
            }
            .hero-alt .hero-title {
                font-size: 1.7rem;
            }
            .hero-alt .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-alt .icon-matrix {
                gap: 8px;
            }
            .hero-alt .icon-matrix-item {
                padding: 7px 13px;
                font-size: 0.78rem;
                gap: 5px;
            }
            .hero-alt .status-bar {
                flex-direction: column;
                gap: 10px;
                padding: 16px 20px;
            }
            .section {
                padding: 36px 0;
            }
            .section-alt {
                padding: 36px 0;
            }
            .section-dark {
                padding: 36px 0;
            }
            .section-warm {
                padding: 36px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .section-header .section-desc {
                font-size: 0.9rem;
            }
            .card-promo {
                padding: 20px 16px;
            }
            .card-highlight {
                padding: 24px 20px;
            }
            .card-highlight .highlight-value {
                font-size: 1.8rem;
            }
            .steps-list {
                flex-direction: column;
                gap: 20px;
            }
            .step-item {
                min-width: auto;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .cta-banner {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-banner h2 {
                font-size: 1.5rem;
            }
            .stats-row {
                flex-direction: column;
                gap: 10px;
            }
            .stat-item {
                min-width: auto;
            }
            .hero-alt .icon-matrix {
                justify-content: flex-start;
            }
            .btn-accent {
                padding: 10px 22px;
                font-size: 0.9rem;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .hero-alt .hero-title {
                font-size: 1.4rem;
            }
            .hero-alt .hero-subtitle {
                font-size: 0.85rem;
            }
            .hero-alt .icon-matrix-item {
                padding: 6px 10px;
                font-size: 0.72rem;
            }
            .hero-alt .status-bar-item {
                font-size: 0.8rem;
            }
            .hero-alt .status-bar-item .status-num {
                font-size: 1.1rem;
            }
            .card-promo h3 {
                font-size: 1rem;
            }
            .card-highlight h3 {
                font-size: 1.1rem;
            }
            .card-highlight .highlight-value {
                font-size: 1.5rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .cta-banner h2 {
                font-size: 1.3rem;
            }
            .cta-banner p {
                font-size: 0.85rem;
            }
            .bottom-tab-item {
                font-size: 0.62rem;
            }
            .bottom-tab-item i {
                font-size: 1.1rem;
            }
            .header-cta .btn-primary {
                padding: 6px 10px;
                font-size: 0.7rem;
            }
        }