/* roulang page: index */
:root {
            --color-brand: #e53935;
            --color-brand-hover: #c62828;
            --color-brand-light: #ff6b6b;
            --color-surface: #0f172a;
            --color-surface-light: #1e293b;
            --color-surface-lighter: #273449;
            --color-surface-card: #1a2332;
            --color-surface-border: #2d3a4d;
            --color-gold: #f59e0b;
            --color-gold-light: #fbbf24;
            --color-text: #f1f5f9;
            --color-text-muted: #94a3b8;
            --color-text-weak: #64748b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 20px rgba(229, 57, 53, 0.3);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-surface);
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 23, 42, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-surface-border);
            transition: box-shadow var(--transition-normal);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            gap: 16px;
        }
        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }
        .nav-logo:hover {
            color: var(--color-brand-light);
        }
        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-brand);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 900;
            color: #fff;
            flex-shrink: 0;
        }
        .nav-search-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            max-width: 400px;
            min-width: 180px;
        }
        .nav-search-input {
            flex: 1;
            padding: 9px 14px;
            border-radius: 24px;
            border: 1px solid var(--color-surface-border);
            background: var(--color-surface-light);
            color: var(--color-text);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            min-width: 0;
        }
        .nav-search-input::placeholder {
            color: var(--color-text-weak);
        }
        .nav-search-input:focus {
            border-color: var(--color-brand);
            box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.15);
            outline: none;
            background: var(--color-surface-lighter);
        }
        .nav-cta-btn {
            padding: 9px 20px;
            border-radius: 24px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .nav-cta-btn:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }
        .nav-cta-btn:active {
            transform: scale(0.97);
        }
        .nav-channels-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 6px 0 10px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav-channels-row::-webkit-scrollbar {
            display: none;
        }
        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text-muted);
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
            cursor: pointer;
            border: 1px solid transparent;
            background: transparent;
        }
        .nav-channel-link:hover {
            color: #fff;
            background: var(--color-surface-lighter);
            border-color: var(--color-surface-border);
        }
        .nav-channel-link.active {
            color: #fff;
            background: var(--color-brand);
            border-color: var(--color-brand);
            font-weight: 600;
            box-shadow: var(--shadow-glow);
        }
        .nav-channel-link .channel-badge {
            margin-left: 5px;
            font-size: 0.7rem;
            padding: 2px 7px;
            border-radius: 10px;
            background: var(--color-gold);
            color: #000;
            font-weight: 700;
            animation: pulse-badge 2s infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.7;
            }
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: var(--color-surface-lighter);
        }
        @media (max-width: 768px) {
            .nav-search-wrap {
                display: none;
            }
            .nav-cta-btn {
                font-size: 0.8rem;
                padding: 7px 14px;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-channels-row {
                gap: 2px;
                padding: 4px 0 8px;
            }
            .nav-channel-link {
                padding: 6px 12px;
                font-size: 0.8rem;
                border-radius: 16px;
            }
        }
        @media (max-width: 520px) {
            .nav-logo {
                font-size: 1.25rem;
            }
            .nav-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.9rem;
            }
            .nav-cta-btn {
                padding: 6px 10px;
                font-size: 0.75rem;
            }
            .nav-channel-link {
                padding: 5px 10px;
                font-size: 0.75rem;
            }
        }

        /* Hero */
        .hero-section {
            position: relative;
            padding: 60px 0 70px;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.7) 0%, rgba(15, 23, 42, 0.92) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-blend-mode: overlay;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .hero-main-card {
            background: rgba(26, 35, 50, 0.85);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-xl);
            padding: 36px 40px;
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            align-items: center;
            box-shadow: var(--shadow-lg);
        }
        .hero-card-left {
            flex: 1 1 300px;
            min-width: 260px;
        }
        .hero-card-right {
            flex: 0 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
            align-items: stretch;
            min-width: 180px;
        }
        .hero-badge {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 16px;
            font-size: 0.8rem;
            font-weight: 700;
            background: var(--color-gold);
            color: #000;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .hero-title {
            font-size: 2.6rem;
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
            margin: 0 0 12px;
            letter-spacing: -0.02em;
        }
        .hero-desc {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin: 0 0 8px;
            max-width: 500px;
        }
        .hero-data-row {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 6px;
        }
        .hero-data-item {
            text-align: center;
        }
        .hero-data-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1;
        }
        .hero-data-label {
            font-size: 0.78rem;
            color: var(--color-text-weak);
            margin-top: 3px;
        }
        .hero-btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 7px;
            padding: 13px 28px;
            border-radius: 28px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            text-align: center;
            box-shadow: var(--shadow-glow);
        }
        .hero-btn-primary:hover {
            background: var(--color-brand-hover);
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(229, 57, 53, 0.45);
        }
        .hero-btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 7px;
            padding: 12px 26px;
            border-radius: 28px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid var(--color-surface-border);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            text-align: center;
        }
        .hero-btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 40px 0 50px;
                min-height: auto;
            }
            .hero-main-card {
                padding: 24px 20px;
                gap: 20px;
                border-radius: var(--radius-lg);
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .hero-card-right {
                flex: 1 1 100%;
                flex-direction: row;
                flex-wrap: wrap;
                gap: 10px;
            }
            .hero-btn-primary,
            .hero-btn-outline {
                flex: 1;
                min-width: 130px;
                padding: 11px 16px;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-data-row {
                gap: 14px;
            }
            .hero-data-num {
                font-size: 1.3rem;
            }
        }

        /* Section通用 */
        .section-block {
            padding: 50px 0;
        }
        .section-block.bg-alt {
            background: var(--color-surface-light);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--color-brand-light);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 6px;
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 10px;
            line-height: 1.3;
        }
        .section-desc {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            margin: 0 0 24px;
            max-width: 650px;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .section-block {
                padding: 34px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
        }

        /* 卡片 */
        .card-base {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 22px 24px;
            transition: all var(--transition-normal);
            height: 100%;
        }
        .card-base:hover {
            border-color: #4a5568;
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .card-cover-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-radius: var(--radius-md);
            margin-bottom: 14px;
        }
        .card-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.72rem;
            font-weight: 600;
            background: rgba(229, 57, 53, 0.2);
            color: var(--color-brand-light);
            margin-bottom: 6px;
        }
        .card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .card-text {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            margin: 0;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-brand-light);
            margin-top: 10px;
            transition: gap var(--transition-fast);
            cursor: pointer;
        }
        .card-link:hover {
            gap: 9px;
            color: #ff8a80;
        }

        /* 品牌故事 */
        .brand-story-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            align-items: center;
        }
        .brand-story-text {
            flex: 1 1 400px;
            min-width: 280px;
        }
        .brand-story-img {
            flex: 0 0 300px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .brand-story-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
        }
        @media (max-width: 768px) {
            .brand-story-img {
                flex: 0 0 100%;
                max-width: 400px;
            }
        }

        /* 卖点三连 */
        .selling-points-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .sp-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .sp-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-brand);
            border-radius: 0 0 3px 3px;
        }
        .sp-card:hover {
            border-color: var(--color-brand);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }
        .sp-icon {
            font-size: 2.4rem;
            margin-bottom: 10px;
            display: block;
        }
        .sp-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
        }
        .sp-desc {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .selling-points-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 520px) {
            .selling-points-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 里程碑 */
        .milestone-timeline {
            display: flex;
            flex-wrap: wrap;
            gap: 0;
            position: relative;
            justify-content: space-between;
        }
        .milestone-timeline::before {
            content: '';
            position: absolute;
            top: 28px;
            left: 30px;
            right: 30px;
            height: 2px;
            background: var(--color-surface-border);
            z-index: 0;
        }
        .milestone-item {
            flex: 1 1 120px;
            min-width: 100px;
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 0 8px;
        }
        .milestone-dot {
            width: 16px;
            height: 16px;
            background: var(--color-brand);
            border-radius: 50%;
            margin: 20px auto 12px;
            position: relative;
            z-index: 1;
            box-shadow: 0 0 0 6px rgba(229, 57, 53, 0.2);
        }
        .milestone-year {
            font-weight: 800;
            font-size: 1.1rem;
            color: #fff;
            margin: 0 0 4px;
        }
        .milestone-text {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            line-height: 1.4;
            margin: 0;
        }
        @media (max-width: 768px) {
            .milestone-timeline {
                flex-wrap: nowrap;
                overflow-x: auto;
                gap: 16px;
                padding-bottom: 10px;
            }
            .milestone-timeline::before {
                display: none;
            }
            .milestone-item {
                flex: 0 0 auto;
                min-width: 90px;
            }
        }

        /* 口碑气泡 */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 18px;
        }
        .testimonial-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 20px 22px;
            position: relative;
        }
        .testimonial-card::before {
            content: '"';
            font-size: 3rem;
            color: var(--color-brand);
            opacity: 0.4;
            position: absolute;
            top: 8px;
            left: 14px;
            line-height: 1;
            font-weight: 900;
        }
        .testimonial-text {
            font-size: 0.9rem;
            color: var(--color-text);
            line-height: 1.6;
            margin: 0 0 10px;
            padding-left: 20px;
        }
        .testimonial-author {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            font-weight: 600;
        }

        /* 爆款清单 */
        .hot-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .hot-list-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 18px;
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .hot-list-item:hover {
            border-color: var(--color-brand);
            background: var(--color-surface-lighter);
        }
        .hot-rank {
            font-size: 1.3rem;
            font-weight: 900;
            color: var(--color-brand);
            min-width: 36px;
            text-align: center;
            flex-shrink: 0;
        }
        .hot-rank.top3 {
            color: var(--color-gold);
        }
        .hot-info {
            flex: 1;
            min-width: 0;
        }
        .hot-name {
            font-weight: 700;
            color: #fff;
            font-size: 0.95rem;
            margin: 0 0 2px;
        }
        .hot-detail {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin: 0;
        }
        .hot-btn {
            flex-shrink: 0;
            padding: 7px 16px;
            border-radius: 18px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--color-brand);
            color: #fff;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .hot-btn:hover {
            background: var(--color-brand-hover);
        }
        @media (max-width: 520px) {
            .hot-list-item {
                flex-wrap: wrap;
                gap: 8px;
            }
            .hot-btn {
                width: 100%;
                text-align: center;
            }
        }

        /* 资讯区 */
        .news-layout {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }
        .news-list-col {
            flex: 1 1 600px;
            min-width: 300px;
        }
        .news-side-col {
            flex: 0 0 320px;
        }
        .news-item {
            padding: 16px 0;
            border-bottom: 1px solid var(--color-surface-border);
            transition: all var(--transition-fast);
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item:hover {
            padding-left: 8px;
        }
        .news-date {
            font-size: 0.75rem;
            color: var(--color-text-weak);
            margin: 0 0 4px;
        }
        .news-title-link {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            display: block;
            margin: 0 0 4px;
            line-height: 1.4;
            transition: color var(--transition-fast);
            cursor: pointer;
        }
        .news-title-link:hover {
            color: var(--color-brand-light);
        }
        .news-summary {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            margin: 0 0 6px;
        }
        .news-read-more {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-brand-light);
            cursor: pointer;
            transition: color var(--transition-fast);
            display: inline-block;
        }
        .news-read-more:hover {
            color: #ff8a80;
        }
        .side-recommend-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 16px;
            margin-bottom: 14px;
            transition: all var(--transition-fast);
            cursor: pointer;
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }
        .side-recommend-card:hover {
            border-color: #4a5568;
            box-shadow: var(--shadow-sm);
        }
        .side-rec-img {
            width: 80px;
            height: 56px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .side-rec-title {
            font-size: 0.85rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 3px;
            line-height: 1.3;
        }
        .side-rec-meta {
            font-size: 0.7rem;
            color: var(--color-text-weak);
        }
        @media (max-width: 768px) {
            .news-side-col {
                flex: 0 0 100%;
                display: flex;
                flex-wrap: wrap;
                gap: 12px;
            }
            .side-recommend-card {
                flex: 1 1 140px;
                min-width: 140px;
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
            .side-rec-img {
                width: 100%;
                height: auto;
                aspect-ratio: 16/10;
            }
        }

        /* 优惠阶梯 */
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            align-items: stretch;
        }
        .tier-card {
            background: var(--color-surface-card);
            border: 2px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            text-align: center;
            transition: all var(--transition-normal);
            position: relative;
        }
        .tier-card.featured {
            border-color: var(--color-brand);
            box-shadow: var(--shadow-glow);
            transform: scale(1.03);
            z-index: 1;
        }
        .tier-card:hover {
            border-color: #4a5568;
            transform: translateY(-4px);
        }
        .tier-card.featured:hover {
            border-color: var(--color-brand);
            transform: scale(1.03) translateY(-4px);
        }
        .tier-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 0.7rem;
            font-weight: 700;
            background: var(--color-gold);
            color: #000;
            margin-bottom: 8px;
        }
        .tier-name {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 4px;
        }
        .tier-price {
            font-size: 2rem;
            font-weight: 900;
            color: var(--color-brand-light);
            margin: 0 0 10px;
        }
        .tier-price span {
            font-size: 0.85rem;
            font-weight: 400;
            color: var(--color-text-muted);
        }
        .tier-features {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
            text-align: left;
            font-size: 0.82rem;
            color: var(--color-text-muted);
            line-height: 2;
        }
        .tier-features li::before {
            content: '✓ ';
            color: var(--color-brand-light);
            font-weight: 700;
        }
        .tier-cta {
            padding: 10px 22px;
            border-radius: 22px;
            font-weight: 700;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            background: var(--color-surface-lighter);
            color: #fff;
            width: 100%;
        }
        .tier-card.featured .tier-cta {
            background: var(--color-brand);
        }
        .tier-cta:hover {
            background: var(--color-brand);
            box-shadow: var(--shadow-glow);
        }
        @media (max-width: 768px) {
            .tier-grid {
                grid-template-columns: 1fr;
                max-width: 400px;
                margin: 0 auto;
            }
            .tier-card.featured {
                transform: none;
            }
            .tier-card.featured:hover {
                transform: translateY(-4px);
            }
        }

        /* 内容日历 */
        .calendar-compact {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .calendar-day-card {
            flex: 1 1 140px;
            min-width: 120px;
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-md);
            padding: 14px;
            text-align: center;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .calendar-day-card:hover {
            border-color: var(--color-brand);
            background: var(--color-surface-lighter);
        }
        .cal-date {
            font-size: 0.75rem;
            color: var(--color-text-weak);
            margin: 0 0 3px;
        }
        .cal-event {
            font-size: 0.85rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 3px;
            line-height: 1.3;
        }
        .cal-time {
            font-size: 0.7rem;
            color: var(--color-brand-light);
        }
        @media (max-width: 520px) {
            .calendar-compact {
                flex-wrap: nowrap;
                overflow-x: auto;
                padding-bottom: 8px;
            }
            .calendar-day-card {
                flex: 0 0 auto;
                min-width: 110px;
            }
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: #4a5568;
        }
        .faq-question {
            padding: 16px 20px;
            font-weight: 700;
            color: #fff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.95rem;
            user-select: none;
        }
        .faq-answer {
            padding: 0 20px 16px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open {
            border-color: var(--color-brand);
        }
        .faq-icon {
            transition: transform var(--transition-fast);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            border-radius: var(--radius-xl);
            padding: 44px 36px;
            text-align: center;
            border: 1px solid var(--color-surface-border);
        }
        .cta-title {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 8px;
        }
        .cta-desc {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            margin: 0 0 20px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-btn-large {
            display: inline-block;
            padding: 14px 36px;
            border-radius: 28px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-glow);
        }
        .cta-btn-large:hover {
            background: var(--color-brand-hover);
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(229, 57, 53, 0.5);
        }

        /* 安全保障 */
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 16px;
        }
        .trust-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            text-align: center;
            transition: all var(--transition-fast);
        }
        .trust-card:hover {
            border-color: #4a5568;
        }
        .trust-icon {
            font-size: 2rem;
            margin-bottom: 6px;
        }
        .trust-title {
            font-weight: 700;
            color: #fff;
            font-size: 0.9rem;
            margin: 0 0 3px;
        }
        .trust-desc {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin: 0;
        }

        /* Footer */
        .site-footer {
            background: #0b1120;
            border-top: 1px solid var(--color-surface-border);
            padding: 40px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 24px;
            margin-bottom: 24px;
        }
        .footer-col-title {
            font-weight: 700;
            color: #fff;
            font-size: 0.9rem;
            margin: 0 0 10px;
        }
        .footer-link {
            display: block;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin: 0 0 6px;
            transition: color var(--transition-fast);
            cursor: pointer;
        }
        .footer-link:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid var(--color-surface-border);
            padding-top: 16px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.78rem;
            color: var(--color-text-weak);
        }
        .footer-bottom a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        @media (max-width: 520px) {
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

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

/* roulang page: category3 */
:root {
            --color-brand: #e53935;
            --color-brand-hover: #c62828;
            --color-brand-light: #ff6b6b;
            --color-surface: #0f172a;
            --color-surface-light: #1e293b;
            --color-surface-lighter: #273449;
            --color-surface-card: #1a2332;
            --color-surface-border: #2d3a4d;
            --color-gold: #f59e0b;
            --color-gold-light: #fbbf24;
            --color-text: #f1f5f9;
            --color-text-muted: #94a3b8;
            --color-text-weak: #64748b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 20px rgba(229, 57, 53, 0.3);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-surface);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding: 0 14px;
            }
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 23, 42, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-surface-border);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            gap: 16px;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-logo:hover {
            color: var(--color-brand-light);
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-brand);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 900;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-search-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            max-width: 400px;
            min-width: 180px;
        }

        .nav-search-input {
            flex: 1;
            padding: 9px 14px;
            border-radius: 24px;
            border: 1px solid var(--color-surface-border);
            background: var(--color-surface-light);
            color: var(--color-text);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            min-width: 0;
        }

        .nav-search-input::placeholder {
            color: var(--color-text-weak);
        }

        .nav-search-input:focus {
            border-color: var(--color-brand);
            box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.15);
            outline: none;
            background: var(--color-surface-lighter);
        }

        .nav-cta-btn {
            padding: 9px 20px;
            border-radius: 24px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .nav-cta-btn:active {
            transform: scale(0.97);
        }

        .nav-channels-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 6px 0 10px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            flex-wrap: nowrap;
        }

        .nav-channels-row::-webkit-scrollbar {
            display: none;
        }

        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text-muted);
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
            cursor: pointer;
            border: 1px solid transparent;
            background: transparent;
        }

        .nav-channel-link:hover {
            color: #fff;
            background: var(--color-surface-lighter);
            border-color: var(--color-surface-border);
        }

        .nav-channel-link.active {
            background: var(--color-brand);
            color: #fff;
            border-color: var(--color-brand);
            font-weight: 600;
            box-shadow: var(--shadow-glow);
        }

        .channel-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.68rem;
            font-weight: 700;
            background: var(--color-gold);
            color: #0f172a;
            border-radius: 50px;
            padding: 2px 7px;
            margin-left: 5px;
            line-height: 1.2;
            animation: pulse-badge 2s infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.7;
            }
        }

        /* Mobile nav toggle */
        .nav-mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .nav-mobile-toggle:hover {
            background: var(--color-surface-lighter);
        }

        @media (max-width: 768px) {
            .nav-mobile-toggle {
                display: block;
            }
            .nav-search-wrap {
                display: none;
            }
            .nav-search-wrap.mobile-open {
                display: flex;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                max-width: 100%;
                padding: 10px 16px;
                background: rgba(15, 23, 42, 0.95);
                backdrop-filter: blur(14px);
                border-bottom: 1px solid var(--color-surface-border);
                z-index: 999;
            }
            .nav-top-row {
                flex-wrap: wrap;
            }
            .nav-cta-btn {
                font-size: 0.8rem;
                padding: 7px 14px;
            }
            .nav-logo {
                font-size: 1.25rem;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .nav-channel-link {
                padding: 6px 11px;
                font-size: 0.78rem;
                border-radius: 16px;
            }
            .nav-cta-btn {
                padding: 6px 12px;
                font-size: 0.75rem;
                border-radius: 18px;
            }
        }

        /* Section spacing */
        .section-block {
            padding: 60px 0;
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 40px 0;
            }
        }

        /* Hero */
        .hero-replay {
            position: relative;
            padding: 80px 0 70px;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-color: var(--color-surface);
            min-height: 520px;
            display: flex;
            align-items: center;
            isolation: isolate;
        }

        .hero-replay::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.78) 0%, rgba(15, 23, 42, 0.92) 100%);
            z-index: 0;
        }

        .hero-replay-content {
            position: relative;
            z-index: 1;
            text-align: center;
            width: 100%;
        }

        .hero-replay h1 {
            font-size: 2.8rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            color: #fff;
            margin: 0 0 16px;
            line-height: 1.25;
        }

        .hero-replay .hero-subtitle {
            font-size: 1.15rem;
            color: var(--color-text-muted);
            max-width: 620px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .hero-search-wrap {
            display: flex;
            align-items: center;
            max-width: 560px;
            margin: 0 auto 24px;
            gap: 0;
            background: var(--color-surface-light);
            border-radius: 30px;
            border: 1px solid var(--color-surface-border);
            overflow: hidden;
            transition: box-shadow var(--transition-fast);
        }

        .hero-search-wrap:focus-within {
            box-shadow: 0 0 0 4px rgba(229, 57, 53, 0.2);
            border-color: var(--color-brand);
        }

        .hero-search-input {
            flex: 1;
            padding: 14px 20px;
            border: none;
            background: transparent;
            color: var(--color-text);
            font-size: 1rem;
            outline: none;
            min-width: 0;
        }

        .hero-search-input::placeholder {
            color: var(--color-text-weak);
        }

        .hero-search-btn {
            padding: 14px 28px;
            background: var(--color-brand);
            color: #fff;
            border: none;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            border-radius: 0 30px 30px 0;
        }

        .hero-search-btn:hover {
            background: var(--color-brand-hover);
        }

        .hero-hot-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 8px;
        }

        .hero-hot-tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--color-text-muted);
            font-size: 0.85rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }

        .hero-hot-tag:hover {
            background: rgba(229, 57, 53, 0.2);
            border-color: var(--color-brand);
            color: #fff;
        }

        .hero-hot-tag .tag-fire {
            margin-right: 4px;
            font-size: 0.8rem;
        }

        @media (max-width: 768px) {
            .hero-replay {
                padding: 50px 0 45px;
                min-height: 400px;
            }
            .hero-replay h1 {
                font-size: 2rem;
            }
            .hero-replay .hero-subtitle {
                font-size: 1rem;
                max-width: 90%;
            }
            .hero-search-wrap {
                max-width: 90%;
            }
            .hero-search-btn {
                padding: 12px 20px;
                font-size: 0.9rem;
            }
            .hero-search-input {
                padding: 12px 16px;
                font-size: 0.9rem;
            }
            .hero-hot-tag {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
        }

        /* Stats dashboard */
        .stats-dashboard {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: -40px;
            position: relative;
            z-index: 2;
        }

        .stat-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

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

        .stat-number {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--color-brand-light);
            letter-spacing: -0.02em;
            line-height: 1.1;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-top: 6px;
            font-weight: 500;
        }

        .stat-icon {
            font-size: 2rem;
            margin-bottom: 8px;
            display: block;
        }

        @media (max-width: 768px) {
            .stats-dashboard {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
                margin-top: -30px;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 520px) {
            .stats-dashboard {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
                margin-top: -20px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .stat-label {
                font-size: 0.78rem;
            }
        }

        /* Service matrix */
        .service-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .service-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--color-brand);
            transform: translateY(-3px);
        }

        .service-card .service-icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(229, 57, 53, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .service-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
            letter-spacing: -0.01em;
        }

        .service-card .service-desc {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.65;
            margin: 0;
        }

        .service-card .service-tag {
            display: inline-block;
            margin-top: 12px;
            padding: 4px 10px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(245, 158, 11, 0.15);
            color: var(--color-gold-light);
        }

        @media (max-width: 768px) {
            .service-matrix {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .service-card {
                padding: 22px 18px;
            }
        }

        @media (max-width: 520px) {
            .service-matrix {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* Comparison table */
        .comparison-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-surface-border);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
            background: var(--color-surface-card);
        }

        .comparison-table th,
        .comparison-table td {
            padding: 16px 20px;
            text-align: center;
            border-bottom: 1px solid var(--color-surface-border);
            font-size: 0.9rem;
        }

        .comparison-table th {
            background: var(--color-surface-lighter);
            font-weight: 700;
            color: #fff;
            font-size: 0.95rem;
            white-space: nowrap;
        }

        .comparison-table .highlight-col {
            background: rgba(229, 57, 53, 0.08);
            position: relative;
        }

        .comparison-table .highlight-col::after {
            content: '推荐';
            position: absolute;
            top: -8px;
            right: 12px;
            font-size: 0.7rem;
            background: var(--color-brand);
            color: #fff;
            padding: 3px 8px;
            border-radius: 50px;
            font-weight: 700;
        }

        .comparison-table .check-icon {
            color: #22c55e;
            font-weight: 700;
        }

        .comparison-table .dash-icon {
            color: var(--color-text-weak);
        }

        @media (max-width: 768px) {
            .comparison-table th,
            .comparison-table td {
                padding: 12px 14px;
                font-size: 0.8rem;
            }
        }

        /* Flow steps */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .flow-step {
            text-align: center;
            position: relative;
            padding: 24px 16px;
            background: var(--color-surface-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-surface-border);
            transition: all var(--transition-normal);
        }

        .flow-step:hover {
            border-color: var(--color-brand);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .flow-step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-brand);
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            margin-bottom: 12px;
        }

        .flow-step h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
        }

        .flow-step p {
            font-size: 0.83rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.55;
        }

        .flow-arrow {
            display: none;
        }

        @media (max-width: 768px) {
            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .flow-steps {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--color-surface-lighter);
        }

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

        .faq-question:hover {
            background: var(--color-surface-lighter);
        }

        .faq-arrow {
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            font-size: 0.8rem;
            color: var(--color-text-muted);
            width: 22px;
            height: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--color-surface-lighter);
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            background: var(--color-brand);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, var(--color-surface-light) 0%, var(--color-surface-lighter) 100%);
            border-radius: var(--radius-xl);
            border: 1px solid var(--color-surface-border);
            text-align: center;
            padding: 50px 30px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(229, 57, 53, 0.08);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section .cta-desc {
            font-size: 1rem;
            color: var(--color-text-muted);
            max-width: 500px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 1;
        }

        .cta-form {
            display: flex;
            max-width: 480px;
            margin: 0 auto;
            gap: 0;
            position: relative;
            z-index: 1;
        }

        .cta-form input {
            flex: 1;
            padding: 14px 18px;
            border-radius: 28px 0 0 28px;
            border: 1px solid var(--color-surface-border);
            background: var(--color-surface);
            color: var(--color-text);
            font-size: 0.95rem;
            outline: none;
            transition: all var(--transition-fast);
            min-width: 0;
        }

        .cta-form input:focus {
            border-color: var(--color-brand);
            box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.12);
        }

        .cta-form button {
            padding: 14px 28px;
            border-radius: 0 28px 28px 0;
            background: var(--color-brand);
            color: #fff;
            border: none;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .cta-form button:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-glow);
        }

        @media (max-width: 520px) {
            .cta-section {
                padding: 36px 18px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .cta-form {
                flex-direction: column;
                gap: 10px;
                max-width: 100%;
            }
            .cta-form input {
                border-radius: 28px;
            }
            .cta-form button {
                border-radius: 28px;
                width: 100%;
            }
        }

        /* Footer */
        .site-footer {
            background: var(--color-surface-light);
            border-top: 1px solid var(--color-surface-border);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            padding-bottom: 30px;
            border-bottom: 1px solid var(--color-surface-border);
            margin-bottom: 20px;
        }

        .footer-col-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: -0.01em;
        }

        .footer-link {
            display: block;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            padding: 5px 0;
            transition: color var(--transition-fast);
            cursor: pointer;
        }

        .footer-link:hover {
            color: var(--color-brand-light);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--color-text-weak);
            padding-top: 8px;
        }

        .footer-bottom a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }

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

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
        }

        /* Section titles */
        .section-title {
            font-size: 1.7rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            margin: 0 0 8px;
            text-align: center;
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            text-align: center;
            margin: 0 0 40px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.4rem;
            }
            .section-subtitle {
                font-size: 0.85rem;
                margin-bottom: 28px;
            }
        }

        /* Scene cards */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .scene-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            transition: all var(--transition-normal);
            text-align: center;
        }

        .scene-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--color-brand);
            transform: translateY(-3px);
        }

        .scene-card .scene-icon {
            font-size: 2.5rem;
            margin-bottom: 12px;
            display: block;
        }

        .scene-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
        }

        .scene-card p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .scene-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* Feature highlight block */
        .feature-highlight-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .feature-highlight-block .feature-image-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-surface-border);
            box-shadow: var(--shadow-md);
        }

        .feature-highlight-block .feature-image-wrap img {
            width: 100%;
            height: auto;
            display: block;
        }

        .feature-highlight-block .feature-text h3 {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 12px;
            letter-spacing: -0.01em;
        }

        .feature-highlight-block .feature-text p {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin: 0 0 16px;
        }

        .feature-highlight-block .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .feature-highlight-block .feature-list li {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            padding-left: 22px;
            position: relative;
            line-height: 1.5;
        }

        .feature-highlight-block .feature-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--color-brand-light);
            font-weight: 700;
        }

        @media (max-width: 768px) {
            .feature-highlight-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .feature-highlight-block .feature-image-wrap {
                order: -1;
            }
        }

/* roulang page: category1 */
:root {
            --color-brand: #e53935;
            --color-brand-hover: #c62828;
            --color-brand-light: #ff6b6b;
            --color-surface: #0f172a;
            --color-surface-light: #1e293b;
            --color-surface-lighter: #273449;
            --color-surface-card: #1a2332;
            --color-surface-border: #2d3a4d;
            --color-gold: #f59e0b;
            --color-gold-light: #fbbf24;
            --color-text: #f1f5f9;
            --color-text-muted: #94a3b8;
            --color-text-weak: #64748b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 20px rgba(229, 57, 53, 0.3);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-surface);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 23, 42, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-surface-border);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            gap: 16px;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-logo:hover {
            color: var(--color-brand-light);
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-brand);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 900;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-search-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            max-width: 400px;
            min-width: 180px;
        }

        .nav-search-input {
            flex: 1;
            padding: 9px 14px;
            border-radius: 24px;
            border: 1px solid var(--color-surface-border);
            background: var(--color-surface-light);
            color: var(--color-text);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            min-width: 0;
        }

        .nav-search-input::placeholder {
            color: var(--color-text-weak);
        }

        .nav-search-input:focus {
            border-color: var(--color-brand);
            box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.15);
            outline: none;
            background: var(--color-surface-lighter);
        }

        .nav-cta-btn {
            padding: 9px 20px;
            border-radius: 24px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .nav-cta-btn:active {
            transform: scale(0.97);
        }

        .nav-channels-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 6px 0 10px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-channels-row::-webkit-scrollbar {
            display: none;
        }

        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text-muted);
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
            cursor: pointer;
            border: 1px solid transparent;
            background: transparent;
        }

        .nav-channel-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-channel-link.active {
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            border-color: var(--color-brand);
            box-shadow: var(--shadow-glow);
        }

        .channel-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-gold);
            color: #000;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 2px 7px;
            border-radius: 10px;
            margin-left: 6px;
            line-height: 1.2;
            animation: pulse-badge 2s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.12);
            }
        }

        /* Hero - 视频官网风格 */
        .hero-video-section {
            position: relative;
            width: 100%;
            min-height: 620px;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background: #0a0f1a;
        }

        .hero-video-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
            filter: brightness(0.4) saturate(1.1);
        }

        .hero-video-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.55) 0%, rgba(15, 23, 42, 0.8) 60%, rgba(15, 23, 42, 0.95) 100%);
            z-index: 1;
        }

        .hero-video-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            padding: 40px 24px;
        }

        .hero-play-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 90px;
            height: 90px;
            border-radius: 50%;
            background: rgba(229, 57, 53, 0.85);
            border: 4px solid rgba(255, 255, 255, 0.7);
            cursor: pointer;
            transition: all var(--transition-normal);
            margin-bottom: 28px;
            position: relative;
            box-shadow: 0 0 40px rgba(229, 57, 53, 0.5), 0 0 80px rgba(229, 57, 53, 0.25);
            animation: hero-play-glow 2.5s ease-in-out infinite;
        }

        @keyframes hero-play-glow {
            0%,
            100% {
                box-shadow: 0 0 40px rgba(229, 57, 53, 0.5), 0 0 80px rgba(229, 57, 53, 0.25);
            }
            50% {
                box-shadow: 0 0 55px rgba(229, 57, 53, 0.7), 0 0 110px rgba(229, 57, 53, 0.4);
            }
        }

        .hero-play-btn:hover {
            background: rgba(229, 57, 53, 1);
            border-color: #fff;
            transform: scale(1.08);
            box-shadow: 0 0 60px rgba(229, 57, 53, 0.75), 0 0 120px rgba(229, 57, 53, 0.45);
        }

        .hero-play-btn:active {
            transform: scale(0.95);
        }

        .hero-play-icon {
            width: 0;
            height: 0;
            border-style: solid;
            border-width: 16px 0 16px 28px;
            border-color: transparent transparent transparent #fff;
            margin-left: 6px;
            filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
        }

        .hero-video-title {
            font-size: 3rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -0.03em;
            line-height: 1.2;
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
        }

        .hero-video-subtitle {
            font-size: 1.2rem;
            color: var(--color-text-muted);
            margin-bottom: 32px;
            line-height: 1.6;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .btn-hero-primary {
            padding: 14px 32px;
            border-radius: 28px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-glow);
            white-space: nowrap;
        }

        .btn-hero-primary:hover {
            background: var(--color-brand-hover);
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(229, 57, 53, 0.5);
        }

        .btn-hero-outline {
            padding: 14px 32px;
            border-radius: 28px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            border: 2px solid rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-hero-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

        /* 指标看板 */
        .stats-dashboard {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            padding: 50px 0;
        }

        .stat-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-brand), var(--color-gold));
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

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

        .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-number .stat-unit {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--color-brand-light);
            margin-left: 4px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }

        .stat-sub {
            font-size: 0.8rem;
            color: var(--color-gold-light);
            margin-top: 6px;
            font-weight: 500;
        }

        /* 服务矩阵 */
        .service-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            gap: 14px;
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            border-color: var(--color-brand);
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .service-card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--color-brand), #c0392b);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        .service-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin: 0;
        }

        .service-card p {
            font-size: 0.93rem;
            color: var(--color-text-muted);
            line-height: 1.65;
            margin: 0;
            flex-grow: 1;
        }

        .service-card .service-tag {
            display: inline-block;
            padding: 5px 12px;
            border-radius: 14px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(229, 57, 53, 0.15);
            color: var(--color-brand-light);
            width: fit-content;
        }

        /* 对比模块 */
        .compare-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-surface-border);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
        }

        .compare-table th,
        .compare-table td {
            padding: 16px 20px;
            text-align: center;
            border-bottom: 1px solid var(--color-surface-border);
        }

        .compare-table th {
            background: var(--color-surface-light);
            font-weight: 700;
            color: #fff;
            font-size: 0.95rem;
            white-space: nowrap;
        }

        .compare-table td {
            font-size: 0.9rem;
            color: var(--color-text-muted);
        }

        .compare-table .col-feature {
            text-align: left;
            font-weight: 600;
            color: #fff;
            min-width: 140px;
        }

        .compare-table .highlight-col {
            background: rgba(229, 57, 53, 0.08);
        }

        .compare-table .check-icon {
            color: #10b981;
            font-weight: 700;
            font-size: 1.2rem;
        }

        .compare-table .cross-icon {
            color: #ef4444;
            font-weight: 700;
            font-size: 1.2rem;
        }

        .compare-table .partial-icon {
            color: var(--color-gold);
            font-weight: 700;
            font-size: 1.2rem;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--color-brand);
        }

        .faq-question {
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 700;
            color: #fff;
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .faq-arrow {
            transition: transform var(--transition-normal);
            font-size: 1.2rem;
            color: var(--color-brand-light);
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 22px;
            color: var(--color-text-muted);
            font-size: 0.93rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* CTA 转化 */
        .cta-convert-section {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #0f3460 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            border: 1px solid var(--color-surface-border);
            position: relative;
            overflow: hidden;
        }

        .cta-convert-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(229, 57, 53, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-convert-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-convert-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 28px auto 0;
            flex-wrap: wrap;
            justify-content: center;
            position: relative;
            z-index: 1;
        }

        .cta-convert-input {
            flex: 1;
            min-width: 220px;
            padding: 14px 18px;
            border-radius: 28px;
            border: 2px solid var(--color-surface-border);
            background: var(--color-surface-light);
            color: #fff;
            font-size: 1rem;
            transition: all var(--transition-fast);
        }

        .cta-convert-input:focus {
            border-color: var(--color-brand);
            outline: none;
            box-shadow: 0 0 0 4px rgba(229, 57, 53, 0.12);
            background: var(--color-surface-lighter);
        }

        .cta-convert-input::placeholder {
            color: var(--color-text-weak);
        }

        .btn-cta-submit {
            padding: 14px 30px;
            border-radius: 28px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-glow);
        }

        .btn-cta-submit:hover {
            background: var(--color-brand-hover);
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(229, 57, 53, 0.55);
        }

        /* 赛事卡片 */
        .match-cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }

        .match-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-normal);
            cursor: pointer;
        }

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

        .match-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

        .match-card-body {
            padding: 18px;
        }

        .match-card-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
        }

        .match-card-body .match-time {
            font-size: 0.82rem;
            color: var(--color-gold-light);
            font-weight: 600;
            margin-bottom: 8px;
            display: block;
        }

        .match-card-body p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.5;
        }

        .match-card-badge {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 700;
            background: var(--color-brand);
            color: #fff;
            margin-top: 10px;
        }

        /* 流程步骤 */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            position: relative;
        }

        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-brand), #c0392b);
            color: #fff;
            font-weight: 900;
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: var(--shadow-glow);
            position: relative;
            z-index: 2;
        }

        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
        }

        .step-item p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.5;
        }

        /* Section 通用 */
        .section-block {
            padding: 60px 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            text-align: center;
            letter-spacing: -0.02em;
            margin-bottom: 10px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            text-align: center;
            margin-bottom: 40px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-divider {
            width: 50px;
            height: 3px;
            background: var(--color-brand);
            border-radius: 2px;
            margin: 0 auto 36px;
        }

        /* Footer */
        .site-footer {
            background: #0a0f1a;
            border-top: 1px solid var(--color-surface-border);
            padding-top: 48px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 32px;
        }

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

        .footer-link {
            display: block;
            font-size: 0.88rem;
            color: var(--color-text-muted);
            padding: 5px 0;
            transition: color var(--transition-fast);
            cursor: pointer;
        }

        .footer-link:hover {
            color: var(--color-brand-light);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            border-top: 1px solid var(--color-surface-border);
            font-size: 0.82rem;
            color: var(--color-text-weak);
        }

        .footer-bottom a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }

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

        /* 响应式 */
        @media (max-width: 1024px) {
            .stats-dashboard {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-matrix {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .hero-video-title {
                font-size: 2.2rem;
            }
            .hero-video-section {
                min-height: 500px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .stats-dashboard {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 18px 12px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .service-matrix {
                grid-template-columns: 1fr;
            }
            .steps-row {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .match-cards-grid {
                grid-template-columns: 1fr;
            }
            .hero-video-title {
                font-size: 1.7rem;
            }
            .hero-video-subtitle {
                font-size: 1rem;
            }
            .hero-video-section {
                min-height: 420px;
            }
            .hero-play-btn {
                width: 64px;
                height: 64px;
            }
            .hero-play-icon {
                border-width: 11px 0 11px 20px;
                margin-left: 4px;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .nav-search-wrap {
                display: none;
            }
            .nav-top-row {
                gap: 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .cta-convert-section {
                padding: 32px 20px;
            }
            .compare-table th,
            .compare-table td {
                padding: 10px 12px;
                font-size: 0.78rem;
            }
        }

        @media (max-width: 420px) {
            .stats-dashboard {
                grid-template-columns: 1fr;
            }
            .hero-video-cta-group {
                flex-direction: column;
                align-items: center;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                width: 100%;
                text-align: center;
            }
            .nav-logo {
                font-size: 1.2rem;
            }
            .nav-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.85rem;
            }
            .nav-cta-btn {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-brand: #e53935;
            --color-brand-hover: #c62828;
            --color-brand-light: #ff6b6b;
            --color-surface: #0f172a;
            --color-surface-light: #1e293b;
            --color-surface-lighter: #273449;
            --color-surface-card: #1a2332;
            --color-surface-border: #2d3a4d;
            --color-gold: #f59e0b;
            --color-gold-light: #fbbf24;
            --color-text: #f1f5f9;
            --color-text-muted: #94a3b8;
            --color-text-weak: #64748b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 20px rgba(229, 57, 53, 0.3);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-surface);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 23, 42, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-surface-border);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            gap: 16px;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }

        .nav-logo:hover {
            color: var(--color-brand-light);
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-brand);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 900;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-search-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            max-width: 400px;
            min-width: 180px;
        }

        .nav-search-input {
            flex: 1;
            padding: 9px 14px;
            border-radius: 24px;
            border: 1px solid var(--color-surface-border);
            background: var(--color-surface-light);
            color: var(--color-text);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            min-width: 0;
        }

        .nav-search-input::placeholder {
            color: var(--color-text-weak);
        }

        .nav-search-input:focus {
            border-color: var(--color-brand);
            box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.15);
            outline: none;
            background: var(--color-surface-lighter);
        }

        .nav-cta-btn {
            padding: 9px 20px;
            border-radius: 24px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .nav-cta-btn:active {
            transform: scale(0.97);
        }

        .nav-channels-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 6px 0 10px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-channels-row::-webkit-scrollbar {
            display: none;
        }

        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text-muted);
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
            cursor: pointer;
            border: 1px solid transparent;
            background: transparent;
        }

        .nav-channel-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.04);
            border-color: var(--color-surface-border);
        }

        .nav-channel-link.active {
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            border-color: var(--color-brand);
            box-shadow: var(--shadow-glow);
        }

        .channel-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-gold);
            color: #000;
            font-size: 0.65rem;
            font-weight: 700;
            padding: 1px 6px;
            border-radius: 10px;
            margin-left: 5px;
            line-height: 1.3;
            animation: badgePulse 2s ease-in-out infinite;
        }

        @keyframes badgePulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.65;
            }
        }

        /* Mobile nav */
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: #fff;
            font-size: 1.5rem;
            line-height: 1;
        }

        @media (max-width: 768px) {
            .nav-search-wrap {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-top-row {
                gap: 10px;
            }
            .nav-logo {
                font-size: 1.25rem;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            .nav-cta-btn {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
            .nav-channel-link {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
        }

        /* Section spacing */
        .section-block {
            padding: 60px 0;
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 36px 0;
            }
        }

        /* Hero Section */
        .hero-basketball {
            position: relative;
            background: linear-gradient(160deg, #0f172a 0%, #1a1f35 30%, #1e1628 60%, #0f172a 100%);
            overflow: hidden;
            min-height: 560px;
            display: flex;
            align-items: center;
        }

        .hero-basketball::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(229, 57, 53, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-basketball::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
            z-index: 0;
        }

        .hero-content-wrap {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        @media (max-width: 900px) {
            .hero-content-wrap {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-basketball {
                min-height: auto;
                padding: 40px 0;
            }
        }

        .hero-text-area h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin: 0 0 14px;
            letter-spacing: -0.01em;
        }

        .hero-text-area h1 .highlight {
            color: var(--color-brand-light);
            position: relative;
        }

        .hero-text-area .hero-subtitle {
            font-size: 1.1rem;
            color: var(--color-text-muted);
            margin: 0 0 20px;
            line-height: 1.6;
            max-width: 480px;
        }

        .hero-feature-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 22px;
        }

        .hero-feature-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 6px 13px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--color-surface-border);
            font-size: 0.82rem;
            color: var(--color-text-muted);
            white-space: nowrap;
        }

        .hero-feature-tag .tag-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--color-brand-light);
            flex-shrink: 0;
        }

        .hero-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-primary-lg {
            padding: 13px 28px;
            border-radius: 28px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: var(--shadow-glow);
        }

        .btn-primary-lg:hover {
            background: var(--color-brand-hover);
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(229, 57, 53, 0.45);
        }

        .btn-outline-lg {
            padding: 13px 28px;
            border-radius: 28px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid var(--color-surface-border);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-outline-lg:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.04);
        }

        /* Time slot selector card */
        .time-slot-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            box-shadow: var(--shadow-md);
            position: relative;
            z-index: 2;
        }

        .time-slot-card .ts-header {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .time-slot-card .ts-header .ts-icon {
            width: 28px;
            height: 28px;
            background: var(--color-brand);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
        }

        .time-slot-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .time-slot-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 11px 14px;
            border-radius: var(--radius-md);
            background: var(--color-surface-light);
            border: 1px solid transparent;
            cursor: pointer;
            transition: all var(--transition-fast);
            gap: 10px;
        }

        .time-slot-item:hover {
            border-color: var(--color-brand);
            background: var(--color-surface-lighter);
            box-shadow: var(--shadow-sm);
        }

        .time-slot-item.selected {
            border-color: var(--color-brand);
            background: rgba(229, 57, 53, 0.1);
            box-shadow: var(--shadow-glow);
        }

        .time-slot-item .ts-label {
            font-weight: 600;
            color: #fff;
            font-size: 0.9rem;
            white-space: nowrap;
        }

        .time-slot-item .ts-time {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            white-space: nowrap;
        }

        .time-slot-item .ts-count {
            font-size: 0.72rem;
            color: var(--color-gold-light);
            font-weight: 600;
            white-space: nowrap;
            background: rgba(245, 158, 11, 0.1);
            padding: 3px 9px;
            border-radius: 12px;
        }

        .time-slot-card .ts-cta {
            margin-top: 16px;
            width: 100%;
            padding: 11px;
            border-radius: 24px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            text-align: center;
        }

        .time-slot-card .ts-cta:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-glow);
        }

        /* Metrics Dashboard */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        @media (max-width: 768px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
        }

        @media (max-width: 480px) {
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }

        .metric-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 22px 18px;
            text-align: center;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .metric-card:hover {
            border-color: var(--color-brand);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .metric-card .metric-value {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 4px;
            letter-spacing: -0.02em;
        }

        .metric-card .metric-value.highlight-num {
            color: var(--color-brand-light);
        }

        .metric-card .metric-value.gold-num {
            color: var(--color-gold-light);
        }

        .metric-card .metric-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }

        .metric-card .metric-sub {
            font-size: 0.72rem;
            color: var(--color-text-weak);
            margin-top: 2px;
        }

        /* Service Matrix */
        .service-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        @media (max-width: 900px) {
            .service-matrix {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }

        @media (max-width: 520px) {
            .service-matrix {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        .service-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            gap: 10px;
            position: relative;
        }

        .service-card:hover {
            border-color: var(--color-brand);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .service-card .svc-icon-wrap {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: rgba(229, 57, 53, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            flex-shrink: 0;
        }

        .service-card .svc-title {
            font-weight: 700;
            font-size: 1.05rem;
            color: #fff;
            margin: 0;
        }

        .service-card .svc-desc {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.55;
            margin: 0;
        }

        .service-card .svc-badge {
            display: inline-block;
            align-self: flex-start;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.7rem;
            font-weight: 700;
            background: rgba(245, 158, 11, 0.15);
            color: var(--color-gold-light);
        }

        /* Comparison Section */
        .comparison-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .comparison-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            min-width: 600px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-surface-border);
        }

        .comparison-table th,
        .comparison-table td {
            padding: 14px 16px;
            text-align: left;
            font-size: 0.9rem;
            border-bottom: 1px solid var(--color-surface-border);
        }

        .comparison-table th {
            background: var(--color-surface-light);
            font-weight: 700;
            color: #fff;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }

        .comparison-table td {
            background: var(--color-surface-card);
            color: var(--color-text-muted);
        }

        .comparison-table tr:last-child td {
            border-bottom: none;
        }

        .comparison-table .col-highlight {
            background: rgba(229, 57, 53, 0.08);
        }

        .comparison-table .check-icon {
            color: #22c55e;
            font-weight: 700;
        }

        .comparison-table .cross-icon {
            color: #ef4444;
            font-weight: 700;
        }

        .comparison-table .star-icon {
            color: var(--color-gold-light);
        }

        /* Hot Matches */
        .hot-matches-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        @media (max-width: 900px) {
            .hot-matches-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }

        @media (max-width: 520px) {
            .hot-matches-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        .match-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-normal);
            cursor: pointer;
        }

        .match-card:hover {
            border-color: var(--color-brand);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .match-card .match-img-wrap {
            position: relative;
            height: 160px;
            overflow: hidden;
        }

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

        .match-card:hover .match-img-wrap img {
            transform: scale(1.05);
        }

        .match-card .match-live-badge {
            position: absolute;
            top: 10px;
            left: 10px;
            background: var(--color-brand);
            color: #fff;
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 0.7rem;
            font-weight: 700;
            animation: badgePulse 2s ease-in-out infinite;
        }

        .match-card .match-info {
            padding: 14px;
        }

        .match-card .match-teams {
            font-weight: 700;
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 4px;
        }

        .match-card .match-league {
            font-size: 0.75rem;
            color: var(--color-text-weak);
            margin-bottom: 6px;
        }

        .match-card .match-time {
            font-size: 0.8rem;
            color: var(--color-gold-light);
            font-weight: 600;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--color-surface-lighter);
        }

        .faq-question {
            padding: 16px 20px;
            font-weight: 700;
            color: #fff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.95rem;
            user-select: none;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.02);
        }

        .faq-question .faq-arrow {
            transition: transform var(--transition-fast);
            font-size: 0.8rem;
            color: var(--color-text-weak);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--color-brand-light);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            color: var(--color-text-muted);
            font-size: 0.88rem;
            line-height: 1.6;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        /* CTA Form */
        .cta-form-wrap {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-xl);
            padding: 36px 28px;
            max-width: 600px;
            margin: 0 auto;
            box-shadow: var(--shadow-lg);
            text-align: center;
        }

        .cta-form-wrap .form-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }

        .cta-form-wrap .form-subtitle {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-bottom: 20px;
        }

        .cta-form-row {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form-input {
            flex: 1;
            min-width: 200px;
            padding: 12px 16px;
            border-radius: 24px;
            border: 1px solid var(--color-surface-border);
            background: var(--color-surface-light);
            color: var(--color-text);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }

        .cta-form-input:focus {
            border-color: var(--color-brand);
            box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.15);
            outline: none;
            background: var(--color-surface-lighter);
        }

        .cta-form-submit {
            padding: 12px 24px;
            border-radius: 24px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .cta-form-submit:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-glow);
        }

        /* Section title */
        .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            text-align: center;
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            text-align: center;
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.4rem;
            }
            .section-subtitle {
                font-size: 0.85rem;
                margin-bottom: 22px;
            }
        }

        /* Footer */
        .site-footer {
            background: var(--color-surface-light);
            border-top: 1px solid var(--color-surface-border);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            padding-bottom: 28px;
            border-bottom: 1px solid var(--color-surface-border);
            margin-bottom: 18px;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
        }

        .footer-col-title {
            font-weight: 700;
            color: #fff;
            font-size: 0.9rem;
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }

        .footer-link {
            display: block;
            font-size: 0.82rem;
            color: var(--color-text-muted);
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer-link:hover {
            color: #fff;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            font-size: 0.78rem;
            color: var(--color-text-weak);
            padding-top: 8px;
        }

        @media (max-width: 600px) {
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
        }

        /* Responsive adjustments */
        @media (max-width: 1024px) {
            .hero-text-area h1 {
                font-size: 2rem;
            }
            .hero-text-area .hero-subtitle {
                font-size: 0.95rem;
            }
            .metric-card .metric-value {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 640px) {
            .hero-text-area h1 {
                font-size: 1.6rem;
            }
            .btn-primary-lg,
            .btn-outline-lg {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .cta-form-wrap {
                padding: 24px 16px;
            }
            .time-slot-card {
                padding: 16px 14px;
            }
        }

/* roulang page: category5 */
:root {
            --color-brand: #e53935;
            --color-brand-hover: #c62828;
            --color-brand-light: #ff6b6b;
            --color-surface: #0f172a;
            --color-surface-light: #1e293b;
            --color-surface-lighter: #273449;
            --color-surface-card: #1a2332;
            --color-surface-border: #2d3a4d;
            --color-gold: #f59e0b;
            --color-gold-light: #fbbf24;
            --color-text: #f1f5f9;
            --color-text-muted: #94a3b8;
            --color-text-weak: #64748b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 20px rgba(229, 57, 53, 0.3);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-surface);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 23, 42, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-surface-border);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            gap: 16px;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-logo:hover {
            color: var(--color-brand-light);
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-brand);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 900;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-search-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            max-width: 400px;
            min-width: 180px;
        }

        .nav-search-input {
            flex: 1;
            padding: 9px 14px;
            border-radius: 24px;
            border: 1px solid var(--color-surface-border);
            background: var(--color-surface-light);
            color: var(--color-text);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            min-width: 0;
        }

        .nav-search-input::placeholder {
            color: var(--color-text-weak);
        }

        .nav-search-input:focus {
            border-color: var(--color-brand);
            box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.15);
            outline: none;
            background: var(--color-surface-lighter);
        }

        .nav-cta-btn {
            padding: 9px 20px;
            border-radius: 24px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .nav-cta-btn:active {
            transform: scale(0.97);
        }

        .nav-channels-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 6px 0 10px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-channels-row::-webkit-scrollbar {
            display: none;
        }

        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text-muted);
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
            cursor: pointer;
            border: 1px solid transparent;
            background: transparent;
        }

        .nav-channel-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-channel-link.active {
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            border-color: var(--color-brand);
            box-shadow: var(--shadow-glow);
        }

        .channel-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            background: var(--color-gold);
            color: #000;
            border-radius: 10px;
            padding: 1px 7px;
            margin-left: 5px;
            font-weight: 700;
            line-height: 1.3;
            animation: pulse-badge 2s infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.7;
            }
        }

        /* Mobile nav */
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        @media (max-width: 768px) {
            .nav-search-wrap {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-channels-row {
                gap: 2px;
                padding: 4px 0 8px;
            }
            .nav-channel-link {
                padding: 6px 12px;
                font-size: 0.8rem;
                border-radius: 16px;
            }
            .nav-top-row {
                padding: 8px 0;
                gap: 10px;
            }
            .nav-logo {
                font-size: 1.25rem;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
                border-radius: 8px;
            }
            .nav-cta-btn {
                padding: 7px 14px;
                font-size: 0.8rem;
                border-radius: 20px;
            }
        }

        @media (max-width: 520px) {
            .nav-channel-link {
                padding: 5px 10px;
                font-size: 0.75rem;
                border-radius: 14px;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
            .nav-cta-btn {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
        }

        /* Section common */
        .section-block {
            padding: 60px 0;
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 40px 0;
            }
        }

        @media (max-width: 520px) {
            .section-block {
                padding: 28px 0;
            }
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            margin-bottom: 32px;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 24px;
            }
        }

        /* Card base */
        .card-base {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition-normal);
        }

        .card-base:hover {
            border-color: rgba(229, 57, 53, 0.4);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        /* Buttons */
        .btn-brand {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            border-radius: 24px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            font-size: 1rem;
            white-space: nowrap;
        }

        .btn-brand:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .btn-brand:active {
            transform: scale(0.97);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 26px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            border-radius: 24px;
            border: 2px solid var(--color-surface-border);
            cursor: pointer;
            transition: all var(--transition-fast);
            font-size: 1rem;
            white-space: nowrap;
        }

        .btn-outline:hover {
            border-color: var(--color-brand);
            color: var(--color-brand-light);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .btn-outline:active {
            transform: scale(0.97);
        }

        /* Progress ring */
        .progress-ring-wrap {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .progress-ring-circle {
            transform: rotate(-90deg);
        }

        .progress-ring-bg {
            fill: none;
            stroke: var(--color-surface-border);
            stroke-width: 8;
        }

        .progress-ring-fill {
            fill: none;
            stroke: var(--color-brand);
            stroke-width: 8;
            stroke-linecap: round;
            transition: stroke-dashoffset 1.2s ease;
        }

        .progress-ring-text {
            position: absolute;
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            text-align: center;
        }

        .progress-ring-text .sub {
            display: block;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--color-text-muted);
        }

        /* Tier card */
        .tier-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition-normal);
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .tier-card:hover {
            border-color: rgba(229, 57, 53, 0.5);
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .tier-card.featured {
            border-color: var(--color-brand);
            box-shadow: var(--shadow-glow);
            background: linear-gradient(180deg, rgba(229, 57, 53, 0.08) 0%, var(--color-surface-card) 30%);
        }

        .tier-badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 14px;
            font-size: 0.8rem;
            font-weight: 700;
            background: var(--color-brand);
            color: #fff;
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .tier-badge.popular {
            background: var(--color-gold);
            color: #000;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            background: var(--color-surface-card);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(229, 57, 53, 0.3);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 16px 20px;
            background: none;
            border: none;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
        }

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

        .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            font-size: 1.2rem;
            color: var(--color-text-muted);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--color-brand-light);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            color: var(--color-text-muted);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        /* Footer */
        .site-footer {
            background: var(--color-surface-light);
            border-top: 1px solid var(--color-surface-border);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            padding-bottom: 30px;
        }

        .footer-col-title {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

        .footer-link {
            display: block;
            color: var(--color-text-muted);
            font-size: 0.9rem;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

        .footer-link:hover {
            color: var(--color-brand-light);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid var(--color-surface-border);
            font-size: 0.85rem;
            color: var(--color-text-weak);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
        }

        /* Metric card */
        .metric-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            text-align: center;
            transition: all var(--transition-normal);
        }

        .metric-card:hover {
            border-color: rgba(229, 57, 53, 0.4);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .metric-value {
            font-size: 2.5rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .metric-value .unit {
            font-size: 1rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }

        .metric-label {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        .metric-trend {
            font-size: 0.85rem;
            color: #4ade80;
            font-weight: 600;
            margin-top: 2px;
        }

        /* Comparison table */
        .compare-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
            font-size: 0.95rem;
        }

        .compare-table th,
        .compare-table td {
            padding: 14px 16px;
            text-align: center;
            border-bottom: 1px solid var(--color-surface-border);
        }

        .compare-table th {
            background: var(--color-surface-lighter);
            color: #fff;
            font-weight: 700;
            white-space: nowrap;
            position: sticky;
            top: 0;
        }

        .compare-table th:first-child {
            text-align: left;
            border-radius: var(--radius-sm) 0 0 0;
        }

        .compare-table th:last-child {
            border-radius: 0 var(--radius-sm) 0 0;
        }

        .compare-table td:first-child {
            text-align: left;
            font-weight: 600;
            color: #fff;
        }

        .compare-table tr:hover td {
            background: rgba(255, 255, 255, 0.02);
        }

        .compare-check {
            color: #4ade80;
            font-weight: 700;
            font-size: 1.2rem;
        }

        .compare-dash {
            color: var(--color-text-weak);
        }

        .compare-highlight {
            color: var(--color-gold);
            font-weight: 700;
        }

        /* Form */
        .form-input {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-surface-border);
            background: var(--color-surface-light);
            color: var(--color-text);
            font-size: 1rem;
            transition: all var(--transition-fast);
            box-sizing: border-box;
        }

        .form-input:focus {
            border-color: var(--color-brand);
            box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.15);
            outline: none;
            background: var(--color-surface-lighter);
        }

        .form-input::placeholder {
            color: var(--color-text-weak);
        }

        /* Glow divider */
        .glow-divider {
            width: 60px;
            height: 3px;
            background: var(--color-brand);
            border-radius: 2px;
            margin: 0 auto 20px;
            box-shadow: var(--shadow-glow);
        }

        /* Hero bg overlay */
        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(15, 23, 42, 0.7) 40%, rgba(15, 23, 42, 0.85) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

/* roulang page: category6 */
:root {
            --color-brand: #e53935;
            --color-brand-hover: #c62828;
            --color-brand-light: #ff6b6b;
            --color-surface: #0f172a;
            --color-surface-light: #1e293b;
            --color-surface-lighter: #273449;
            --color-surface-card: #1a2332;
            --color-surface-border: #2d3a4d;
            --color-gold: #f59e0b;
            --color-gold-light: #fbbf24;
            --color-text: #f1f5f9;
            --color-text-muted: #94a3b8;
            --color-text-weak: #64748b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 20px rgba(229, 57, 53, 0.3);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-surface);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 23, 42, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-surface-border);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            gap: 16px;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-logo:hover {
            color: var(--color-brand-light);
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-brand);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 900;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-search-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            max-width: 400px;
            min-width: 180px;
        }

        .nav-search-input {
            flex: 1;
            padding: 9px 14px;
            border-radius: 24px;
            border: 1px solid var(--color-surface-border);
            background: var(--color-surface-light);
            color: var(--color-text);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            min-width: 0;
        }

        .nav-search-input::placeholder {
            color: var(--color-text-weak);
        }

        .nav-search-input:focus {
            border-color: var(--color-brand);
            box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.15);
            outline: none;
            background: var(--color-surface-lighter);
        }

        .nav-cta-btn {
            padding: 9px 20px;
            border-radius: 24px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .nav-cta-btn:active {
            transform: scale(0.97);
        }

        .nav-channels-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 6px 0 10px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-channels-row::-webkit-scrollbar {
            display: none;
        }

        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text-muted);
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
            cursor: pointer;
            border: 1px solid transparent;
            background: transparent;
        }

        .nav-channel-link:hover {
            color: #fff;
            background: var(--color-surface-lighter);
        }

        .nav-channel-link.active {
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            border-color: var(--color-brand);
            box-shadow: var(--shadow-glow);
        }

        .channel-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            background: var(--color-gold);
            color: #000;
            font-weight: 700;
            padding: 2px 6px;
            border-radius: 10px;
            margin-left: 4px;
            line-height: 1;
        }

        /* Mobile nav toggle */
        .nav-mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .nav-mobile-toggle:hover {
            background: var(--color-surface-lighter);
        }

        /* Section spacing */
        .section-block {
            padding: 56px 0;
        }

        .section-block-sm {
            padding: 36px 0;
        }

        .section-block-lg {
            padding: 72px 0;
        }

        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-muted);
            margin-bottom: 32px;
            max-width: 640px;
        }

        /* Hero */
        .hero-team-data {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: linear-gradient(160deg, #0f172a 0%, #1a1f35 40%, #1e2238 100%);
        }

        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }

        .hero-content-wrap {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }

        .hero-text-col {
            flex: 1;
            min-width: 280px;
        }

        .hero-visual-col {
            flex: 0 0 320px;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-phone-mock {
            width: 240px;
            height: 420px;
            background: var(--color-surface-card);
            border-radius: 28px;
            border: 3px solid var(--color-surface-border);
            overflow: hidden;
            box-shadow: var(--shadow-lg), 0 0 60px rgba(229, 57, 53, 0.15);
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .hero-phone-header {
            background: var(--color-surface-light);
            padding: 10px 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            border-bottom: 1px solid var(--color-surface-border);
            font-size: 0.78rem;
            font-weight: 600;
            color: #fff;
        }

        .hero-phone-header .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-brand);
            animation: pulse-dot 1.6s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.35;
            }
        }

        .hero-phone-body {
            flex: 1;
            padding: 14px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            overflow-y: auto;
            font-size: 0.72rem;
            color: var(--color-text-muted);
        }

        .hero-phone-body .data-row {
            display: flex;
            justify-content: space-between;
            padding: 7px 10px;
            background: var(--color-surface-light);
            border-radius: var(--radius-sm);
            align-items: center;
        }

        .hero-phone-body .data-val {
            font-weight: 700;
            color: var(--color-gold);
            font-size: 0.85rem;
        }

        .hero-phone-body .data-bar {
            height: 6px;
            border-radius: 3px;
            background: var(--color-surface-border);
            flex: 1;
            margin: 0 8px;
            overflow: hidden;
        }

        .hero-phone-body .data-bar-fill {
            height: 100%;
            border-radius: 3px;
            background: var(--color-brand);
            transition: width 1.2s ease;
        }

        .hero-badge {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 20px;
            background: rgba(229, 57, 53, 0.2);
            color: var(--color-brand-light);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 14px;
            border: 1px solid rgba(229, 57, 53, 0.3);
        }

        .hero-title {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }

        .hero-desc {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            margin-bottom: 24px;
            line-height: 1.7;
            max-width: 460px;
        }

        .hero-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 26px;
            border-radius: 24px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 11px 24px;
            border-radius: 24px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border: 1.5px solid var(--color-surface-border);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-outline:hover {
            border-color: var(--color-brand-light);
            color: var(--color-brand-light);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        /* Metric cards */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .metric-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 22px 18px;
            text-align: center;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .metric-card:hover {
            border-color: var(--color-brand);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }

        .metric-card .metric-icon {
            width: 44px;
            height: 44px;
            margin: 0 auto 10px;
            background: rgba(229, 57, 53, 0.15);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
        }

        .metric-card .metric-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
        }

        .metric-card .metric-label {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        .metric-card .metric-trend {
            font-size: 0.75rem;
            color: #10b981;
            font-weight: 600;
            margin-top: 4px;
        }

        /* Service matrix */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .service-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            gap: 10px;
            position: relative;
        }

        .service-card:hover {
            border-color: var(--color-brand);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .service-card .service-icon-badge {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(229, 57, 53, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            flex-shrink: 0;
        }

        .service-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin: 0;
        }

        .service-card p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* Comparison */
        .comparison-panel {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-xl);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
        }

        .comparison-col {
            padding: 28px 24px;
            position: relative;
        }

        .comparison-col:first-child {
            border-right: 1px solid var(--color-surface-border);
        }

        .comparison-col-header {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .comparison-col-header img {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            object-fit: cover;
            border: 2px solid var(--color-surface-border);
        }

        .comparison-col-header h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin: 0;
        }

        .comparison-stat-row {
            display: flex;
            justify-content: space-between;
            padding: 9px 0;
            border-bottom: 1px solid rgba(45, 58, 77, 0.5);
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        .comparison-stat-row .stat-val {
            font-weight: 700;
            color: #fff;
        }

        .comparison-vs-badge {
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            width: 44px;
            height: 44px;
            background: var(--color-brand);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.85rem;
            color: #fff;
            z-index: 3;
            box-shadow: var(--shadow-glow);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--color-surface-lighter);
        }

        .faq-question {
            padding: 16px 20px;
            font-weight: 600;
            color: #fff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.95rem;
            user-select: none;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: var(--color-surface-lighter);
        }

        .faq-question .faq-icon {
            transition: transform var(--transition-normal);
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            color: var(--color-text-muted);
            font-size: 0.88rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #1a1f35 0%, #1e2338 50%, #1a1f35 100%);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-xl);
            padding: 44px 32px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(229, 57, 53, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-form-wrap {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 20px auto 0;
            flex-wrap: wrap;
            justify-content: center;
            position: relative;
            z-index: 1;
        }

        .cta-input {
            flex: 1;
            min-width: 200px;
            padding: 12px 18px;
            border-radius: 24px;
            border: 1px solid var(--color-surface-border);
            background: var(--color-surface-light);
            color: #fff;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }

        .cta-input:focus {
            border-color: var(--color-brand);
            box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.15);
            outline: none;
            background: var(--color-surface-lighter);
        }

        .cta-input::placeholder {
            color: var(--color-text-weak);
        }

        /* Footer */
        .site-footer {
            background: var(--color-surface-light);
            border-top: 1px solid var(--color-surface-border);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            padding-bottom: 28px;
        }

        .footer-col-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .footer-link {
            display: block;
            font-size: 0.84rem;
            color: var(--color-text-muted);
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer-link:hover {
            color: var(--color-brand-light);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding-top: 16px;
            border-top: 1px solid var(--color-surface-border);
            font-size: 0.8rem;
            color: var(--color-text-weak);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-visual-col {
                flex: 0 0 260px;
            }
            .hero-phone-mock {
                width: 200px;
                height: 360px;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .comparison-panel {
                grid-template-columns: 1fr;
            }
            .comparison-col:first-child {
                border-right: none;
                border-bottom: 1px solid var(--color-surface-border);
            }
            .comparison-vs-badge {
                top: auto;
                bottom: -22px;
                left: 50%;
                transform: translateX(-50%);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-search-wrap {
                display: none;
            }
            .nav-mobile-toggle {
                display: block;
            }
            .nav-channels-row {
                flex-wrap: nowrap;
                overflow-x: auto;
                gap: 2px;
            }
            .nav-channel-link {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .hero-content-wrap {
                flex-direction: column;
                gap: 24px;
            }
            .hero-visual-col {
                flex: 0 0 auto;
            }
            .hero-phone-mock {
                width: 180px;
                height: 320px;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .service-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-block {
                padding: 36px 0;
            }
            .section-block-lg {
                padding: 48px 0;
            }
            .cta-section {
                padding: 28px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .comparison-panel {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .nav-top-row {
                gap: 10px;
            }
            .nav-logo {
                font-size: 1.2rem;
            }
            .nav-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.9rem;
            }
            .nav-cta-btn {
                padding: 7px 14px;
                font-size: 0.78rem;
            }
            .hero-title {
                font-size: 1.35rem;
            }
            .hero-phone-mock {
                width: 150px;
                height: 270px;
                border-radius: 20px;
            }
            .hero-phone-body {
                font-size: 0.65rem;
                padding: 10px;
                gap: 6px;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .metric-card {
                padding: 14px 10px;
            }
            .metric-card .metric-number {
                font-size: 1.3rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 10px 18px;
                font-size: 0.82rem;
            }
            .cta-form-wrap {
                flex-direction: column;
                align-items: stretch;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .comparison-col {
                padding: 18px 14px;
            }
            .comparison-vs-badge {
                width: 34px;
                height: 34px;
                font-size: 0.7rem;
            }
        }

/* roulang page: category4 */
:root {
            --color-brand: #e53935;
            --color-brand-hover: #c62828;
            --color-brand-light: #ff6b6b;
            --color-surface: #0f172a;
            --color-surface-light: #1e293b;
            --color-surface-lighter: #273449;
            --color-surface-card: #1a2332;
            --color-surface-border: #2d3a4d;
            --color-gold: #f59e0b;
            --color-gold-light: #fbbf24;
            --color-text: #f1f5f9;
            --color-text-muted: #94a3b8;
            --color-text-weak: #64748b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 20px rgba(229, 57, 53, 0.3);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-surface);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding: 0 14px;
            }
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 23, 42, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-surface-border);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            gap: 16px;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-logo:hover {
            color: var(--color-brand-light);
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-brand);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 900;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-search-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            max-width: 400px;
            min-width: 180px;
        }

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

        .nav-search-input {
            flex: 1;
            padding: 9px 14px;
            border-radius: 24px;
            border: 1px solid var(--color-surface-border);
            background: var(--color-surface-light);
            color: var(--color-text);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            min-width: 0;
        }

        .nav-search-input::placeholder {
            color: var(--color-text-weak);
        }

        .nav-search-input:focus {
            border-color: var(--color-brand);
            box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.15);
            outline: none;
            background: var(--color-surface-lighter);
        }

        .nav-cta-btn {
            padding: 9px 20px;
            border-radius: 24px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .nav-cta-btn:active {
            transform: scale(0.97);
        }

        .nav-channels-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 6px 0 10px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-channels-row::-webkit-scrollbar {
            display: none;
        }

        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text-muted);
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
            cursor: pointer;
            border: 1px solid transparent;
            background: transparent;
        }

        .nav-channel-link:hover {
            background: var(--color-surface-lighter);
            color: var(--color-text);
            border-color: var(--color-surface-border);
        }

        .nav-channel-link.active {
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            border-color: var(--color-brand);
            box-shadow: var(--shadow-glow);
        }

        .nav-channel-link.active:hover {
            background: var(--color-brand-hover);
            border-color: var(--color-brand-hover);
        }

        .channel-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.65rem;
            font-weight: 700;
            background: #ff4d4f;
            color: #fff;
            padding: 2px 6px;
            border-radius: 10px;
            margin-left: 5px;
            line-height: 1;
            animation: badgePulse 2s ease-in-out infinite;
        }

        @keyframes badgePulse {
            0%,
            100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.15);
            }
        }

        /* Mobile nav toggle */
        .nav-mobile-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: var(--color-text);
            font-size: 1.5rem;
            line-height: 1;
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .nav-mobile-toggle {
                display: block;
            }
            .nav-cta-btn.desktop-only {
                display: none;
            }
        }

        .nav-mobile-menu {
            display: none;
            flex-direction: column;
            gap: 2px;
            padding: 8px 0 14px;
            background: rgba(15, 23, 42, 0.97);
            border-top: 1px solid var(--color-surface-border);
        }

        .nav-mobile-menu.open {
            display: flex;
        }

        .nav-mobile-link {
            display: block;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
        }

        .nav-mobile-link:hover,
        .nav-mobile-link.active {
            background: var(--color-surface-lighter);
            color: var(--color-text);
        }

        .nav-mobile-link.active {
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
        }

        /* Footer */
        .site-footer {
            background: var(--color-surface-light);
            border-top: 1px solid var(--color-surface-border);
            padding: 48px 0 24px;
            margin-top: 0;
        }

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

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }

        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }
        }

        .footer-col-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .footer-link {
            display: block;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            padding: 5px 0;
            transition: all var(--transition-fast);
            line-height: 1.6;
        }

        .footer-link:hover {
            color: var(--color-brand-light);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding-top: 20px;
            border-top: 1px solid var(--color-surface-border);
            font-size: 0.8rem;
            color: var(--color-text-weak);
        }

        @media (max-width: 768px) {
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
                gap: 10px;
            }
        }

        /* Hero badge burst */
        .badge-burst {
            position: absolute;
            top: 24px;
            right: 28px;
            background: #ff4d4f;
            color: #fff;
            padding: 10px 18px;
            border-radius: 10px;
            transform: rotate(6deg);
            font-weight: 800;
            font-size: 0.95rem;
            box-shadow: 0 6px 20px rgba(255, 77, 79, 0.55);
            animation: burstPulse 2.2s ease-in-out infinite;
            z-index: 5;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        @keyframes burstPulse {
            0%,
            100% {
                transform: rotate(6deg) scale(1);
            }
            50% {
                transform: rotate(4deg) scale(1.06);
            }
        }

        @media (max-width: 640px) {
            .badge-burst {
                top: 14px;
                right: 12px;
                padding: 7px 12px;
                font-size: 0.78rem;
                border-radius: 8px;
                transform: rotate(4deg);
            }
            @keyframes burstPulse {
                0%,
                100% {
                    transform: rotate(4deg) scale(1);
                }
                50% {
                    transform: rotate(2deg) scale(1.05);
                }
            }
        }

        /* Card hover effects */
        .card-hover-lift {
            transition: all var(--transition-normal);
        }
        .card-hover-lift:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        /* Section spacing */
        .section-block {
            padding: 60px 0;
        }
        @media (max-width: 768px) {
            .section-block {
                padding: 40px 0;
            }
        }

        /* Glow ring */
        .glow-ring {
            box-shadow: 0 0 0 4px rgba(229, 57, 53, 0.18), 0 0 30px rgba(229, 57, 53, 0.12);
        }

        /* Compare table */
        .compare-table th,
        .compare-table td {
            padding: 14px 18px;
            text-align: center;
            border-bottom: 1px solid var(--color-surface-border);
        }
        .compare-table th {
            background: var(--color-surface-lighter);
            font-weight: 700;
            color: #fff;
            font-size: 0.9rem;
        }
        .compare-table td {
            font-size: 0.88rem;
            color: var(--color-text-muted);
        }
        .compare-table .highlight-cell {
            color: var(--color-brand-light);
            font-weight: 600;
        }
        .compare-table .check-icon {
            color: #22c55e;
            font-weight: 700;
        }

        /* FAQ accordion */
        .faq-item {
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--color-surface-card);
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-surface-lighter);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 16px 20px;
            background: none;
            border: none;
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: all var(--transition-fast);
            line-height: 1.5;
        }
        .faq-question:hover {
            color: var(--color-brand-light);
        }
        .faq-answer {
            padding: 0 20px 16px;
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question {
            color: var(--color-brand-light);
        }
        .faq-icon {
            font-size: 1.3rem;
            transition: transform var(--transition-fast);
            flex-shrink: 0;
            color: var(--color-text-muted);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--color-brand-light);
        }

        /* Form */
        .cta-form-input {
            padding: 12px 18px;
            border-radius: 24px;
            border: 1px solid var(--color-surface-border);
            background: var(--color-surface-light);
            color: var(--color-text);
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            width: 100%;
            max-width: 360px;
        }
        .cta-form-input:focus {
            border-color: var(--color-brand);
            box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.15);
            outline: none;
            background: var(--color-surface-lighter);
        }
        .cta-form-input::placeholder {
            color: var(--color-text-weak);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 24px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn-primary:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: scale(0.96);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 11px 26px;
            border-radius: 24px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: 2px solid var(--color-surface-border);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-outline:hover {
            border-color: var(--color-brand);
            color: var(--color-brand-light);
            box-shadow: var(--shadow-glow);
        }

        /* Stat card */
        .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1;
        }
        @media (max-width: 640px) {
            .stat-number {
                font-size: 2rem;
            }
        }

        /* Hero overlay */
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    rgba(15, 23, 42, 0.55) 0%,
                    rgba(15, 23, 42, 0.7) 40%,
                    rgba(15, 23, 42, 0.92) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 3;
        }

/* roulang page: category7 */
:root {
            --color-brand: #e53935;
            --color-brand-hover: #c62828;
            --color-brand-light: #ff6b6b;
            --color-surface: #0f172a;
            --color-surface-light: #1e293b;
            --color-surface-lighter: #273449;
            --color-surface-card: #1a2332;
            --color-surface-border: #2d3a4d;
            --color-gold: #f59e0b;
            --color-gold-light: #fbbf24;
            --color-text: #f1f5f9;
            --color-text-muted: #94a3b8;
            --color-text-weak: #64748b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 20px rgba(229, 57, 53, 0.3);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-surface);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 23, 42, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-surface-border);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            gap: 16px;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }

        .nav-logo:hover {
            color: var(--color-brand-light);
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-brand);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 900;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-search-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            max-width: 400px;
            min-width: 180px;
        }

        .nav-search-input {
            flex: 1;
            padding: 9px 14px;
            border-radius: 24px;
            border: 1px solid var(--color-surface-border);
            background: var(--color-surface-light);
            color: var(--color-text);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            min-width: 0;
        }

        .nav-search-input::placeholder {
            color: var(--color-text-weak);
        }

        .nav-search-input:focus {
            border-color: var(--color-brand);
            box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.15);
            outline: none;
            background: var(--color-surface-lighter);
        }

        .nav-cta-btn {
            padding: 9px 20px;
            border-radius: 24px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .nav-cta-btn:active {
            transform: scale(0.97);
        }

        .nav-channels-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 6px 0 10px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-channels-row::-webkit-scrollbar {
            display: none;
        }

        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text-muted);
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
            cursor: pointer;
            border: 1px solid transparent;
            background: transparent;
        }

        .nav-channel-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-channel-link.active {
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            border-color: var(--color-brand);
            box-shadow: var(--shadow-glow);
        }

        .channel-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-gold);
            color: #000;
            font-size: 0.65rem;
            font-weight: 700;
            padding: 2px 6px;
            border-radius: 10px;
            margin-left: 4px;
            line-height: 1;
            animation: pulse-badge 2s infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.15);
            }
        }

        /* Mobile nav */
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 6px;
            border-radius: var(--radius-sm);
        }

        @media (max-width: 768px) {
            .nav-search-wrap {
                display: none;
            }
            .nav-cta-btn {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
            .nav-logo {
                font-size: 1.25rem;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            .nav-channel-link {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-channels-row {
                gap: 2px;
                padding: 4px 0 8px;
            }
        }

        @media (max-width: 520px) {
            .nav-top-row {
                padding: 8px 0;
                gap: 10px;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
            .nav-logo .logo-icon {
                width: 26px;
                height: 26px;
                font-size: 0.75rem;
            }
            .nav-cta-btn {
                padding: 6px 12px;
                font-size: 0.75rem;
                border-radius: 20px;
            }
            .nav-channel-link {
                padding: 5px 10px;
                font-size: 0.72rem;
                border-radius: 16px;
            }
        }

        /* Section spacing */
        .section-block {
            padding: 60px 0;
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 40px 0;
            }
        }

        @media (max-width: 520px) {
            .section-block {
                padding: 30px 0;
            }
        }

        /* Hero Section */
        .hero-fan {
            position: relative;
            padding: 70px 0 60px;
            background: linear-gradient(180deg, #0f172a 0%, #1a1f35 40%, #0f172a 100%);
            overflow: hidden;
        }

        .hero-fan .hero-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.25;
            z-index: 0;
        }

        .hero-fan .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(229, 57, 53, 0.08) 0%, transparent 70%),
                linear-gradient(180deg, rgba(15, 23, 42, 0.7) 0%, rgba(15, 23, 42, 0.9) 100%);
            z-index: 1;
        }

        .hero-fan .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        @media (max-width: 768px) {
            .hero-fan .hero-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero-fan {
                padding: 40px 0 40px;
            }
        }

        /* Progress Ring */
        .progress-ring-wrap {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
        }

        .progress-ring-svg {
            width: 200px;
            height: 200px;
            transform: rotate(-90deg);
        }

        .progress-ring-bg {
            fill: none;
            stroke: var(--color-surface-border);
            stroke-width: 12;
        }

        .progress-ring-fill {
            fill: none;
            stroke: var(--color-brand);
            stroke-width: 12;
            stroke-linecap: round;
            transition: stroke-dashoffset 1.5s ease;
        }

        .progress-ring-text {
            position: absolute;
            text-align: center;
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
        }

        .progress-ring-sub {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            display: block;
            font-weight: 400;
        }

        .progress-ring-container {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        @media (max-width: 520px) {
            .progress-ring-svg {
                width: 150px;
                height: 150px;
            }
            .progress-ring-text {
                font-size: 1.6rem;
            }
        }

        /* Tier cards */
        .tier-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 20px;
            transition: all var(--transition-normal);
            cursor: pointer;
            position: relative;
        }

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

        .tier-card.featured {
            border-color: var(--color-gold);
            box-shadow: 0 0 24px rgba(245, 158, 11, 0.2);
        }

        .tier-card.featured::before {
            content: '热门档位';
            position: absolute;
            top: -12px;
            right: 16px;
            background: var(--color-gold);
            color: #000;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 12px;
            z-index: 3;
        }

        .tier-card .tier-name {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }

        .tier-card .tier-price {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--color-brand-light);
        }

        .tier-card .tier-price span {
            font-size: 0.85rem;
            font-weight: 400;
            color: var(--color-text-muted);
        }

        .tier-card .tier-benefits {
            list-style: none;
            padding: 0;
            margin: 12px 0 0;
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        .tier-card .tier-benefits li {
            padding: 3px 0;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .tier-card .tier-benefits li::before {
            content: '✓';
            color: var(--color-gold);
            font-weight: 700;
            flex-shrink: 0;
        }

        /* Metric cards */
        .metric-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-normal);
        }

        .metric-card:hover {
            border-color: var(--color-brand-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .metric-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-brand-light);
            line-height: 1.2;
        }

        .metric-label {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        /* Service matrix cards */
        .service-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            transition: all var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

        .service-card .service-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(229, 57, 53, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            flex-shrink: 0;
        }

        .service-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin: 0;
        }

        .service-card p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* Comparison table */
        .compare-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }

        .compare-table th,
        .compare-table td {
            padding: 14px 16px;
            text-align: center;
            border-bottom: 1px solid var(--color-surface-border);
        }

        .compare-table th {
            background: var(--color-surface-light);
            font-weight: 700;
            color: #fff;
            font-size: 0.95rem;
            white-space: nowrap;
        }

        .compare-table td {
            font-size: 0.88rem;
            color: var(--color-text-muted);
        }

        .compare-table .col-before {
            color: var(--color-text-weak);
        }

        .compare-table .col-after {
            color: var(--color-gold-light);
            font-weight: 600;
        }

        .compare-table .check-icon {
            color: #22c55e;
            font-weight: 700;
        }

        /* Topic cards */
        .topic-card {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
            padding: 20px;
            transition: all var(--transition-normal);
            cursor: pointer;
        }

        .topic-card:hover {
            border-color: var(--color-brand-light);
            box-shadow: var(--shadow-md);
        }

        .topic-card .topic-title {
            font-weight: 700;
            color: #fff;
            font-size: 1rem;
            margin-bottom: 6px;
        }

        .topic-card .topic-meta {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .topic-card .topic-excerpt {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-top: 8px;
            line-height: 1.5;
        }

        /* FAQ */
        .faq-item {
            background: var(--color-surface-card);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--color-surface-lighter);
        }

        .faq-question {
            padding: 16px 20px;
            font-weight: 600;
            color: #fff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.95rem;
            user-select: none;
        }

        .faq-answer {
            padding: 0 20px 16px;
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .faq-item.open .faq-question {
            color: var(--color-brand-light);
        }

        .faq-arrow {
            transition: transform var(--transition-fast);
            font-size: 0.8rem;
            flex-shrink: 0;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }

        /* CTA form */
        .cta-form-card {
            background: var(--color-surface-card);
            border: 2px solid var(--color-brand);
            border-radius: var(--radius-xl);
            padding: 40px;
            text-align: center;
            box-shadow: var(--shadow-glow);
        }

        .cta-form-row {
            display: flex;
            gap: 12px;
            max-width: 500px;
            margin: 20px auto 0;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-input {
            flex: 1;
            min-width: 160px;
            padding: 12px 16px;
            border-radius: 24px;
            border: 1px solid var(--color-surface-border);
            background: var(--color-surface-light);
            color: var(--color-text);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }

        .cta-input:focus {
            border-color: var(--color-brand);
            box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.15);
            outline: none;
            background: var(--color-surface-lighter);
        }

        .cta-submit-btn {
            padding: 12px 28px;
            border-radius: 24px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .cta-submit-btn:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .cta-submit-btn:active {
            transform: scale(0.96);
        }

        /* Footer */
        .site-footer {
            background: var(--color-surface-light);
            border-top: 1px solid var(--color-surface-border);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            padding: 40px 0;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
        }

        .footer-col-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-link {
            display: block;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer-link:hover {
            color: var(--color-brand-light);
        }

        .footer-bottom {
            border-top: 1px solid var(--color-surface-border);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: var(--color-text-weak);
        }

        @media (max-width: 768px) {
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
        }

        /* Section title */
        .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
            text-align: center;
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            text-align: center;
            margin-bottom: 36px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        @media (max-width: 520px) {
            .section-title {
                font-size: 1.4rem;
            }
            .section-subtitle {
                font-size: 0.85rem;
                margin-bottom: 24px;
            }
        }

        /* Glass card */
        .glass-card {
            background: rgba(30, 41, 59, 0.7);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid var(--color-surface-border);
            border-radius: var(--radius-lg);
        }

        /* Button base */
        .btn-brand {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 24px;
            background: var(--color-brand);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            gap: 8px;
        }

        .btn-brand:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .btn-brand:active {
            transform: scale(0.96);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 11px 26px;
            border-radius: 24px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: 1.5px solid var(--color-surface-border);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            gap: 8px;
        }

        .btn-outline:hover {
            border-color: var(--color-brand-light);
            color: var(--color-brand-light);
            box-shadow: var(--shadow-sm);
        }

        /* Highlight text */
        .text-highlight {
            color: var(--color-brand-light);
        }

        .text-gold {
            color: var(--color-gold);
        }