/* roulang page: index */
:root {
            --color-brand-600: #2563eb;
            --color-brand-700: #1d4ed8;
            --color-brand-800: #1e40af;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-weak: #64748b;
            --color-border: #e2e8f0;
            --color-accent: #ef4444;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-coupon: 0 4px 24px rgba(37, 99, 235, 0.15);
            --shadow-coupon-lg: 0 8px 40px rgba(37, 99, 235, 0.22);
            --nav-width: 250px;
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            background-color: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-base);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand-600);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .app-layout {
            display: flex;
            min-height: 100vh;
            position: relative;
        }

        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: #ffffff;
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-smooth);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-nav .nav-logo {
            padding: 1.5rem 1.25rem;
            border-bottom: 1px solid var(--color-border);
            flex-shrink: 0;
        }

        .sidebar-nav .nav-logo a {
            font-size: 1.35rem;
            font-weight: 700;
            color: #1e3a8a;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: -0.02em;
        }

        .sidebar-nav .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-links {
            list-style: none;
            padding: 0.75rem 0;
            flex: 1;
        }

        .sidebar-nav .nav-links li {
            margin: 0.15rem 0.75rem;
        }

        .sidebar-nav .nav-links li a {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            padding: 0.7rem 1rem;
            border-radius: 0.6rem;
            font-size: 0.925rem;
            font-weight: 500;
            color: #475569;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .sidebar-nav .nav-links li a:hover {
            background: #f1f5f9;
            color: #1e3a8a;
        }

        .sidebar-nav .nav-links li a.active {
            background: #eff6ff;
            color: #2563eb;
            font-weight: 600;
        }

        .sidebar-nav .nav-links li a .nav-icon {
            width: 20px;
            text-align: center;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-bottom {
            padding: 1rem 1.25rem;
            border-top: 1px solid var(--color-border);
            flex-shrink: 0;
            font-size: 0.8rem;
            color: #94a3b8;
        }

        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            padding: 0.75rem 1rem;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
        }

        .mobile-header .mob-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: #1e3a8a;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .mobile-header .mob-logo .logo-icon-sm {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.85rem;
        }

        .hamburger-btn {
            background: none;
            border: none;
            font-size: 1.4rem;
            color: #475569;
            padding: 0.4rem;
            line-height: 1;
            cursor: pointer;
            transition: color var(--transition-base);
        }

        .hamburger-btn:hover {
            color: #1e3a8a;
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 998;
            transition: opacity var(--transition-smooth);
        }

        .mobile-nav-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 280px;
            height: 100vh;
            background: #fff;
            z-index: 999;
            flex-direction: column;
            box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15);
            transform: translateX(-100%);
            transition: transform var(--transition-smooth);
            overflow-y: auto;
        }

        .mobile-nav-drawer.open {
            transform: translateX(0);
        }

        .mobile-nav-drawer .drawer-header {
            padding: 1.25rem;
            border-bottom: 1px solid var(--color-border);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .mobile-nav-drawer .drawer-links {
            list-style: none;
            padding: 0.5rem;
            flex: 1;
        }

        .mobile-nav-drawer .drawer-links li a {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.75rem 1rem;
            border-radius: 0.5rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: #475569;
            transition: all var(--transition-base);
        }

        .mobile-nav-drawer .drawer-links li a:hover,
        .mobile-nav-drawer .drawer-links li a.active {
            background: #eff6ff;
            color: #2563eb;
        }

        .section-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 3rem 1.5rem;
        }

        .section-container-sm {
            max-width: 900px;
            margin: 0 auto;
            padding: 2.5rem 1.5rem;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            color: #2563eb;
            background: #eff6ff;
            padding: 0.3rem 0.85rem;
            border-radius: 2rem;
            letter-spacing: 0.03em;
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: 1.85rem;
            font-weight: 700;
            color: #1e293b;
            margin-bottom: 0.6rem;
            letter-spacing: -0.02em;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1rem;
            color: #64748b;
            line-height: 1.75;
            margin-bottom: 1.5rem;
            max-width: 680px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: #2563eb;
            color: #fff;
            font-weight: 600;
            padding: 0.7rem 1.5rem;
            border-radius: 0.6rem;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: #1d4ed8;
            box-shadow: 0 4px 18px rgba(37, 99, 235, 0.35);
            transform: translateY(-2px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: #fff;
            color: #2563eb;
            font-weight: 600;
            padding: 0.65rem 1.4rem;
            border-radius: 0.6rem;
            font-size: 0.95rem;
            border: 2px solid #2563eb;
            transition: all var(--transition-base);
            white-space: nowrap;
            cursor: pointer;
        }

        .btn-outline:hover {
            background: #eff6ff;
            border-color: #1d4ed8;
            color: #1d4ed8;
            transform: translateY(-2px);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: #ef4444;
            color: #fff;
            font-weight: 600;
            padding: 0.7rem 1.5rem;
            border-radius: 0.6rem;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }

        .btn-accent:hover {
            background: #dc2626;
            box-shadow: 0 4px 18px rgba(239, 68, 68, 0.35);
            transform: translateY(-2px);
        }

        .card-base {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            overflow: hidden;
        }

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

        .coupon-card {
            background: #fff;
            border-radius: var(--radius-2xl);
            box-shadow: var(--shadow-coupon);
            border: 2px dashed #e2e8f0;
            padding: 1.5rem 1.25rem;
            text-align: center;
            transition: all var(--transition-smooth);
            position: relative;
            cursor: pointer;
        }

        .coupon-card:hover {
            box-shadow: var(--shadow-coupon-lg);
            border-color: #93c5fd;
            transform: translateY(-4px);
        }

        .coupon-card.coupon-lg {
            padding: 2rem 1.5rem;
            border-color: #2563eb;
            border-style: solid;
            box-shadow: var(--shadow-coupon-lg);
            background: linear-gradient(180deg, #ffffff 0%, #f8faff 100%);
        }

        .coupon-card .coupon-badge {
            position: absolute;
            top: -12px;
            right: 20px;
            background: #ef4444;
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.3rem 0.75rem;
            border-radius: 1rem;
            letter-spacing: 0.04em;
        }

        .coupon-card .coupon-value {
            font-size: 2.6rem;
            font-weight: 800;
            color: #ef4444;
            line-height: 1;
            margin: 0.5rem 0;
        }

        .coupon-card.coupon-lg .coupon-value {
            font-size: 3.5rem;
        }

        .coupon-card .coupon-value span {
            font-size: 1.2rem;
            font-weight: 600;
        }

        .guarantee-icon-row {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            justify-content: center;
            align-items: center;
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: #475569;
            white-space: nowrap;
        }

        .guarantee-item .gi-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #eff6ff;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #2563eb;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .news-item {
            border-bottom: 1px solid #f1f5f9;
            padding: 1rem 0;
            transition: all var(--transition-base);
        }

        .news-item:hover {
            background: #fafbfd;
            padding-left: 0.5rem;
        }

        .news-item .news-date {
            font-size: 0.78rem;
            color: #94a3b8;
            font-weight: 500;
        }

        .news-item .news-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: #1e293b;
            margin: 0.25rem 0;
            line-height: 1.4;
        }

        .news-item .news-summary {
            font-size: 0.88rem;
            color: #64748b;
            line-height: 1.6;
            margin-bottom: 0.4rem;
        }

        .news-item .news-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: #2563eb;
            transition: color var(--transition-base);
        }

        .news-item .news-link:hover {
            color: #1d4ed8;
            text-decoration: underline;
        }

        .timeline-node {
            display: flex;
            gap: 1.25rem;
            align-items: flex-start;
            padding: 0.75rem 0;
            position: relative;
        }

        .timeline-node::before {
            content: '';
            position: absolute;
            left: 18px;
            top: 44px;
            bottom: 0;
            width: 2px;
            background: #e2e8f0;
        }

        .timeline-node:last-child::before {
            display: none;
        }

        .timeline-dot {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: #eff6ff;
            border: 3px solid #2563eb;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-weight: 700;
            color: #2563eb;
            font-size: 0.8rem;
            z-index: 1;
        }

        .timeline-content h4 {
            font-weight: 600;
            color: #1e293b;
            margin-bottom: 0.2rem;
        }

        .timeline-content p {
            font-size: 0.88rem;
            color: #64748b;
            line-height: 1.5;
        }

        .ranking-row {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.6rem 0.75rem;
            border-radius: 0.5rem;
            transition: all var(--transition-base);
        }

        .ranking-row:hover {
            background: #f8fafc;
        }

        .ranking-num {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .ranking-num.top1 {
            background: #fef3c7;
            color: #d97706;
        }
        .ranking-num.top2 {
            background: #f1f5f9;
            color: #64748b;
        }
        .ranking-num.top3 {
            background: #fef2f2;
            color: #dc2626;
        }
        .ranking-num.normal {
            background: #f8fafc;
            color: #94a3b8;
        }

        .faq-item {
            border: 1px solid #e2e8f0;
            border-radius: 0.75rem;
            margin-bottom: 0.6rem;
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: #bfdbfe;
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.06);
        }

        .faq-question {
            padding: 1rem 1.25rem;
            font-weight: 600;
            color: #1e293b;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #fff;
            font-size: 0.95rem;
            transition: background var(--transition-base);
        }

        .faq-question:hover {
            background: #fafbfd;
        }

        .faq-answer {
            padding: 0 1.25rem 1rem;
            font-size: 0.88rem;
            color: #64748b;
            line-height: 1.7;
            display: none;
        }

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

        .faq-item.open .faq-question {
            color: #2563eb;
            background: #fafbff;
        }

        .footer-link {
            color: #64748b;
            font-size: 0.85rem;
            transition: color var(--transition-base);
        }

        .footer-link:hover {
            color: #2563eb;
        }

        @media (max-width: 1024px) {
            .sidebar-nav {
                display: none;
            }
            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }
            .mobile-header {
                display: flex;
            }
            .mobile-nav-overlay.active {
                display: block;
            }
            .mobile-nav-drawer {
                display: flex;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-container {
                padding: 2rem 1rem;
            }
            .section-container-sm {
                padding: 1.75rem 1rem;
            }
            .coupon-card .coupon-value {
                font-size: 2rem;
            }
            .coupon-card.coupon-lg .coupon-value {
                font-size: 2.6rem;
            }
            .guarantee-icon-row {
                gap: 1rem;
            }
            .guarantee-item {
                font-size: 0.8rem;
            }
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.35rem;
            }
            .section-desc {
                font-size: 0.9rem;
            }
            .coupon-card {
                padding: 1rem 0.75rem;
            }
            .coupon-card.coupon-lg {
                padding: 1.5rem 1rem;
            }
            .coupon-card .coupon-value {
                font-size: 1.6rem;
            }
            .coupon-card.coupon-lg .coupon-value {
                font-size: 2.2rem;
            }
            .guarantee-icon-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.75rem;
            }
            .news-item .news-title {
                font-size: 0.95rem;
            }
            .btn-primary,
            .btn-outline,
            .btn-accent {
                font-size: 0.85rem;
                padding: 0.55rem 1.1rem;
            }
        }

        @media (max-width: 520px) {
            .section-container {
                padding: 1.5rem 0.75rem;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .coupon-card .coupon-value {
                font-size: 1.3rem;
            }
            .coupon-card.coupon-lg .coupon-value {
                font-size: 1.8rem;
            }
            .timeline-node {
                gap: 0.75rem;
            }
            .timeline-dot {
                width: 28px;
                height: 28px;
                font-size: 0.7rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-brand-600: #2563eb;
            --color-brand-700: #1d4ed8;
            --color-brand-800: #1e40af;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-weak: #64748b;
            --color-border: #e2e8f0;
            --color-accent: #ef4444;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-coupon: 0 4px 24px rgba(37, 99, 235, 0.15);
            --shadow-coupon-lg: 0 8px 40px rgba(37, 99, 235, 0.22);
            --nav-width: 250px;
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            background-color: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
            padding: 0;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-base);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand-600);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: #ffffff;
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-smooth);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-nav .nav-logo {
            padding: 1.5rem 1.25rem;
            border-bottom: 1px solid var(--color-border);
            flex-shrink: 0;
        }

        .sidebar-nav .nav-logo a {
            font-size: 1.35rem;
            font-weight: 700;
            color: #1e3a8a;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: -0.02em;
        }

        .sidebar-nav .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-links {
            list-style: none;
            padding: 0.75rem 0;
            flex: 1;
            margin: 0;
        }

        .sidebar-nav .nav-links li {
            margin: 0.15rem 0.75rem;
        }

        .sidebar-nav .nav-links li a {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            padding: 0.7rem 1rem;
            border-radius: 0.6rem;
            font-size: 0.925rem;
            font-weight: 500;
            color: #475569;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .sidebar-nav .nav-links li a:hover {
            background: #f1f5f9;
            color: #1e3a8a;
        }

        .sidebar-nav .nav-links li a.active {
            background: #eff6ff;
            color: #2563eb;
            font-weight: 600;
        }

        .sidebar-nav .nav-links li a .nav-icon {
            width: 20px;
            text-align: center;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-bottom {
            padding: 1rem 1.25rem;
            border-top: 1px solid var(--color-border);
            flex-shrink: 0;
            font-size: 0.8rem;
            color: #94a3b8;
        }

        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            padding: 0.75rem 1rem;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
        }

        .mobile-header .mob-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: #1e3a8a;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .mobile-header .mob-logo .logo-icon-sm {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.85rem;
        }

        .hamburger-btn {
            background: none;
            border: none;
            font-size: 1.4rem;
            color: #475569;
            padding: 0.4rem;
            line-height: 1;
            cursor: pointer;
            transition: color var(--transition-base);
        }

        .hamburger-btn:hover {
            color: #1e3a8a;
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 998;
            transition: opacity var(--transition-smooth);
        }

        .mobile-nav-overlay.show {
            display: block;
        }

        .section-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .section-padding {
            padding: 3.5rem 0;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            color: #fff;
            padding: 0.75rem 1.75rem;
            border-radius: 0.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.25);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #1d4ed8, #1e40af);
            box-shadow: 0 6px 24px rgba(37, 99, 235, 0.35);
            transform: translateY(-1px);
            color: #fff;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #fff;
            color: #2563eb;
            padding: 0.7rem 1.6rem;
            border-radius: 0.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            border: 1.5px solid #2563eb;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: #eff6ff;
            border-color: #1d4ed8;
            color: #1d4ed8;
        }

        .card-train {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            border: 1px solid var(--color-border);
            height: 100%;
        }

        .card-train:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: #cbd5e1;
        }

        .badge-tag {
            display: inline-block;
            background: #eff6ff;
            color: #2563eb;
            padding: 0.3rem 0.8rem;
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 500;
        }

        .badge-hot {
            display: inline-block;
            background: #fef2f2;
            color: #ef4444;
            padding: 0.3rem 0.8rem;
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 500;
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: #1e3a8a;
            line-height: 1.1;
        }

        .footer-link {
            color: #cbd5e1;
            transition: color var(--transition-base);
        }

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

        .faq-item {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: #cbd5e1;
            box-shadow: var(--shadow-card);
        }

        .faq-item summary {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            color: #1e293b;
            font-size: 0.95rem;
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .faq-arrow {
            transition: transform var(--transition-smooth);
            font-size: 0.75rem;
            color: #64748b;
            flex-shrink: 0;
        }

        .faq-item[open] summary .faq-arrow {
            transform: rotate(180deg);
            color: #2563eb;
        }

        .faq-item .faq-answer {
            padding: 0 1.5rem 1.2rem;
            color: #64748b;
            font-size: 0.9rem;
            line-height: 1.8;
        }

        .process-step {
            position: relative;
            text-align: center;
            padding: 1.5rem 1rem;
        }

        .process-step .step-number {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            margin: 0 auto 0.8rem;
            position: relative;
            z-index: 2;
        }

        .process-step .step-line {
            position: absolute;
            top: 40px;
            left: calc(50% + 30px);
            width: calc(100% - 60px);
            height: 2px;
            background: #e2e8f0;
            z-index: 1;
        }

        @media (max-width: 1024px) {
            .sidebar-nav {
                transform: translateX(-100%);
            }
            .sidebar-nav.mobile-open {
                transform: translateX(0);
                box-shadow: 4px 0 32px rgba(0, 0, 0, 0.2);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                padding-top: 56px;
            }
            .section-padding {
                padding: 2.5rem 0;
            }
            .stat-number {
                font-size: 2rem;
            }
            .process-step .step-line {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .section-container {
                padding: 0 1rem;
            }
            .section-padding {
                padding: 2rem 0;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .card-train {
                padding: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .section-padding {
                padding: 1.5rem 0;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 0.6rem 1.2rem;
                font-size: 0.85rem;
            }
        }

/* roulang page: category3 */
:root {
            --color-brand-600: #2563eb;
            --color-brand-700: #1d4ed8;
            --color-brand-800: #1e40af;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-weak: #64748b;
            --color-border: #e2e8f0;
            --color-accent: #ef4444;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-coupon: 0 4px 24px rgba(37, 99, 235, 0.15);
            --shadow-coupon-lg: 0 8px 40px rgba(37, 99, 235, 0.22);
            --nav-width: 250px;
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --color-brand-600: #2563eb;
            --color-brand-700: #1d4ed8;
            --color-brand-800: #1e40af;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-weak: #64748b;
            --color-border: #e2e8f0;
            --color-accent: #ef4444;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-coupon: 0 4px 24px rgba(37, 99, 235, 0.15);
            --shadow-coupon-lg: 0 8px 40px rgba(37, 99, 235, 0.22);
            --nav-width: 250px;
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            background-color: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-base);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand-600);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: #ffffff;
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-smooth);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-nav .nav-logo {
            padding: 1.5rem 1.25rem;
            border-bottom: 1px solid var(--color-border);
            flex-shrink: 0;
        }

        .sidebar-nav .nav-logo a {
            font-size: 1.35rem;
            font-weight: 700;
            color: #1e3a8a;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: -0.02em;
        }

        .sidebar-nav .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-links {
            list-style: none;
            padding: 0.75rem 0;
            flex: 1;
        }

        .sidebar-nav .nav-links li {
            margin: 0.15rem 0.75rem;
        }

        .sidebar-nav .nav-links li a {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            padding: 0.7rem 1rem;
            border-radius: 0.6rem;
            font-size: 0.925rem;
            font-weight: 500;
            color: #475569;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .sidebar-nav .nav-links li a:hover {
            background: #f1f5f9;
            color: #1e3a8a;
        }

        .sidebar-nav .nav-links li a.active {
            background: #eff6ff;
            color: #2563eb;
            font-weight: 600;
        }

        .sidebar-nav .nav-links li a .nav-icon {
            width: 20px;
            text-align: center;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-bottom {
            padding: 1rem 1.25rem;
            border-top: 1px solid var(--color-border);
            flex-shrink: 0;
            font-size: 0.8rem;
            color: #94a3b8;
        }

        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            padding: 0.75rem 1rem;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
        }

        .mobile-header .mob-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: #1e3a8a;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .mobile-header .mob-logo .logo-icon-sm {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.85rem;
        }

        .hamburger-btn {
            background: none;
            border: none;
            font-size: 1.4rem;
            color: #475569;
            padding: 0.4rem;
            line-height: 1;
            cursor: pointer;
            transition: color var(--transition-base);
        }

        .hamburger-btn:hover {
            color: #1e3a8a;
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 998;
            background: rgba(0, 0, 0, 0.5);
            transition: opacity var(--transition-smooth);
        }

        .mobile-nav-overlay.active {
            display: block;
        }

        .section-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .section-padding {
            padding: 3.5rem 0;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            color: #fff;
            padding: 0.75rem 1.75rem;
            border-radius: 0.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.25);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #1d4ed8, #1e40af);
            box-shadow: 0 6px 24px rgba(37, 99, 235, 0.35);
            transform: translateY(-1px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #fff;
            color: #2563eb;
            padding: 0.7rem 1.6rem;
            border-radius: 0.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid #2563eb;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: #eff6ff;
            border-color: #1d4ed8;
            color: #1d4ed8;
        }

        .card {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            overflow: hidden;
        }

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

        .badge-tag {
            display: inline-block;
            background: #eff6ff;
            color: #2563eb;
            padding: 0.3rem 0.8rem;
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .badge-hot {
            display: inline-block;
            background: #fef2f2;
            color: #ef4444;
            padding: 0.3rem 0.8rem;
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .footer-link {
            color: #94a3b8;
            transition: color var(--transition-base);
        }

        .footer-link:hover {
            color: #e2e8f0;
        }

        .equipment-card {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

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

        .equipment-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 4/3;
            background: #f1f5f9;
        }

        .equipment-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .equipment-card .card-body {
            padding: 1.25rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .rank-badge {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            background: linear-gradient(135deg, #ef4444, #dc2626);
            color: #fff;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            box-shadow: 0 2px 8px rgba(239, 68, 68, 0.4);
            z-index: 2;
        }

        .rank-badge.silver {
            background: linear-gradient(135deg, #94a3b8, #64748b);
        }

        .rank-badge.bronze {
            background: linear-gradient(135deg, #d97706, #b45309);
        }

        @media (max-width: 1024px) {
            .sidebar-nav {
                transform: translateX(-100%);
            }
            .sidebar-nav.mobile-open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                padding-top: 56px;
            }
            .section-padding {
                padding: 2.5rem 0;
            }
            .section-container {
                padding: 0 1rem;
            }
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 2rem 0;
            }
            .hero-stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.75rem;
            }
            .equipment-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 0.65rem 1.25rem;
                font-size: 0.875rem;
            }
        }

        @media (max-width: 520px) {
            .equipment-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }
            .hero-stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.5rem;
            }
            .section-padding {
                padding: 1.75rem 0;
            }
            .card-body {
                padding: 1rem;
            }
        }

/* roulang page: category1 */
:root {
            --color-brand-600: #2563eb;
            --color-brand-700: #1d4ed8;
            --color-brand-800: #1e40af;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-weak: #64748b;
            --color-border: #e2e8f0;
            --color-accent: #ef4444;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-coupon: 0 4px 24px rgba(37, 99, 235, 0.15);
            --shadow-coupon-lg: 0 8px 40px rgba(37, 99, 235, 0.22);
            --nav-width: 250px;
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            background-color: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
            padding: 0;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-base);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand-600);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: #ffffff;
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-smooth);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-nav .nav-logo {
            padding: 1.5rem 1.25rem;
            border-bottom: 1px solid var(--color-border);
            flex-shrink: 0;
        }

        .sidebar-nav .nav-logo a {
            font-size: 1.35rem;
            font-weight: 700;
            color: #1e3a8a;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: -0.02em;
        }

        .sidebar-nav .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-links {
            list-style: none;
            padding: 0.75rem 0;
            flex: 1;
            margin: 0;
        }

        .sidebar-nav .nav-links li {
            margin: 0.15rem 0.75rem;
        }

        .sidebar-nav .nav-links li a {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            padding: 0.7rem 1rem;
            border-radius: 0.6rem;
            font-size: 0.925rem;
            font-weight: 500;
            color: #475569;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .sidebar-nav .nav-links li a:hover {
            background: #f1f5f9;
            color: #1e3a8a;
        }

        .sidebar-nav .nav-links li a.active {
            background: #eff6ff;
            color: #2563eb;
            font-weight: 600;
        }

        .sidebar-nav .nav-links li a .nav-icon {
            width: 20px;
            text-align: center;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-bottom {
            padding: 1rem 1.25rem;
            border-top: 1px solid var(--color-border);
            flex-shrink: 0;
            font-size: 0.8rem;
            color: #94a3b8;
        }

        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            padding: 0.75rem 1rem;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
        }

        .mobile-header .mob-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: #1e3a8a;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .mobile-header .mob-logo .logo-icon-sm {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.85rem;
        }

        .hamburger-btn {
            background: none;
            border: none;
            font-size: 1.4rem;
            color: #475569;
            padding: 0.4rem;
            line-height: 1;
            cursor: pointer;
            transition: color var(--transition-base);
        }

        .hamburger-btn:hover {
            color: #1e3a8a;
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.45);
            z-index: 998;
            transition: opacity var(--transition-smooth);
        }

        .mobile-nav-overlay.show {
            display: block;
            opacity: 1;
        }

        .section-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            color: #fff;
            padding: 0.75rem 1.75rem;
            border-radius: 0.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.25);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #1d4ed8, #1e40af);
            box-shadow: 0 6px 24px rgba(37, 99, 235, 0.35);
            transform: translateY(-1px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #fff;
            color: #2563eb;
            padding: 0.7rem 1.6rem;
            border-radius: 0.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid #2563eb;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: #eff6ff;
            border-color: #1d4ed8;
            color: #1d4ed8;
        }

        .card-base {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            overflow: hidden;
        }

        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .badge-hot {
            display: inline-block;
            background: #ef4444;
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.65rem;
            border-radius: 1rem;
            letter-spacing: 0.02em;
        }

        .badge-new {
            display: inline-block;
            background: #10b981;
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.65rem;
            border-radius: 1rem;
            letter-spacing: 0.02em;
        }

        .badge-tag {
            display: inline-block;
            background: #eff6ff;
            color: #2563eb;
            font-size: 0.8rem;
            font-weight: 500;
            padding: 0.3rem 0.8rem;
            border-radius: 0.5rem;
        }

        .footer-link {
            color: #94a3b8;
            transition: color var(--transition-base);
        }

        .footer-link:hover {
            color: #e2e8f0;
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border);
            padding: 1.25rem 0;
            cursor: pointer;
            transition: all var(--transition-base);
        }

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

        .faq-question {
            font-weight: 600;
            font-size: 1.05rem;
            color: #1e293b;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding-top 0.4s ease;
            color: #64748b;
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding-top: 0.75rem;
        }

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

        .faq-icon {
            transition: transform 0.3s ease;
            flex-shrink: 0;
            color: #94a3b8;
        }

        @media (max-width: 1024px) {
            .sidebar-nav {
                transform: translateX(-100%);
            }
            .sidebar-nav.open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                padding-top: 56px;
            }
            .section-container {
                padding: 0 1rem;
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 1.75rem !important;
            }
            .hero-subtitle {
                font-size: 1rem !important;
            }
            .card-grid {
                grid-template-columns: 1fr !important;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr) !important;
            }
            .two-col {
                grid-template-columns: 1fr !important;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr !important;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr !important;
            }
            .footer-grid {
                grid-template-columns: 1fr !important;
            }
            .hero-cta-group {
                flex-direction: column;
                gap: 0.75rem;
            }
            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-outline {
                width: 100%;
                justify-content: center;
            }
        }

        .hero-overlay {
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.55) 0%, rgba(15, 23, 42, 0.75) 100%);
        }

        .section-alt {
            background: #f1f5f9;
        }

        .timeline-dot {
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #2563eb;
            flex-shrink: 0;
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.18);
        }

        .timeline-line {
            width: 2px;
            background: #cbd5e1;
            flex: 1;
            margin: 4px 0;
        }

        .review-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            border-left: 4px solid #2563eb;
            transition: all var(--transition-smooth);
        }

        .review-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-1px);
        }

/* roulang page: category4 */
:root {
            --color-brand-600: #2563eb;
            --color-brand-700: #1d4ed8;
            --color-brand-800: #1e40af;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-weak: #64748b;
            --color-border: #e2e8f0;
            --color-accent: #ef4444;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-coupon: 0 4px 24px rgba(37, 99, 235, 0.15);
            --shadow-coupon-lg: 0 8px 40px rgba(37, 99, 235, 0.22);
            --nav-width: 250px;
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            background-color: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-base);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand-600);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: #ffffff;
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-smooth);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-nav .nav-logo {
            padding: 1.5rem 1.25rem;
            border-bottom: 1px solid var(--color-border);
            flex-shrink: 0;
        }

        .sidebar-nav .nav-logo a {
            font-size: 1.35rem;
            font-weight: 700;
            color: #1e3a8a;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: -0.02em;
        }

        .sidebar-nav .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-links {
            list-style: none;
            padding: 0.75rem 0;
            flex: 1;
            margin: 0;
        }

        .sidebar-nav .nav-links li {
            margin: 0.15rem 0.75rem;
        }

        .sidebar-nav .nav-links li a {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            padding: 0.7rem 1rem;
            border-radius: 0.6rem;
            font-size: 0.925rem;
            font-weight: 500;
            color: #475569;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .sidebar-nav .nav-links li a:hover {
            background: #f1f5f9;
            color: #1e3a8a;
        }

        .sidebar-nav .nav-links li a.active {
            background: #eff6ff;
            color: #2563eb;
            font-weight: 600;
        }

        .sidebar-nav .nav-links li a .nav-icon {
            width: 20px;
            text-align: center;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-bottom {
            padding: 1rem 1.25rem;
            border-top: 1px solid var(--color-border);
            flex-shrink: 0;
            font-size: 0.8rem;
            color: #94a3b8;
        }

        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            padding: 0.75rem 1rem;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
        }

        .mobile-header .mob-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: #1e3a8a;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .mobile-header .mob-logo .logo-icon-sm {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.85rem;
        }

        .hamburger-btn {
            background: none;
            border: none;
            font-size: 1.4rem;
            color: #475569;
            padding: 0.4rem;
            line-height: 1;
            cursor: pointer;
            transition: color var(--transition-base);
        }

        .hamburger-btn:hover {
            color: #1e3a8a;
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            z-index: 998;
            transition: opacity var(--transition-smooth);
        }

        .mobile-nav-overlay.show {
            display: block;
        }

        .section-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            color: #fff;
            padding: 0.75rem 1.75rem;
            border-radius: 0.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.25);
            white-space: nowrap;
        }

        .btn-brand:hover {
            background: linear-gradient(135deg, #1d4ed8, #1e40af);
            box-shadow: 0 6px 24px rgba(37, 99, 235, 0.35);
            transform: translateY(-1px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #fff;
            color: #2563eb;
            border: 2px solid #2563eb;
            padding: 0.7rem 1.6rem;
            border-radius: 0.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: #eff6ff;
            border-color: #1d4ed8;
            color: #1d4ed8;
        }

        .card-elevated {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            border: 1px solid transparent;
        }

        .card-elevated:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: #e2e8f0;
            transform: translateY(-3px);
        }

        .footer-link {
            color: #94a3b8;
            transition: color var(--transition-base);
        }

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

        .badge-tag {
            display: inline-block;
            background: #eff6ff;
            color: #2563eb;
            padding: 0.3rem 0.8rem;
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 500;
        }

        @media (max-width: 1023px) {
            .sidebar-nav {
                transform: translateX(-100%);
            }
            .sidebar-nav.mobile-open {
                transform: translateX(0);
                box-shadow: 0 0 60px rgba(0, 0, 0, 0.3);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                padding-top: 56px;
            }
        }

        @media (min-width: 1024px) {
            .sidebar-nav {
                transform: translateX(0);
            }
            .mobile-header {
                display: none;
            }
            .mobile-nav-overlay {
                display: none !important;
            }
            .main-content {
                padding-top: 0;
            }
        }

        @media (max-width: 767px) {
            .section-container {
                padding: 0 1rem;
            }
            .btn-brand,
            .btn-outline {
                padding: 0.65rem 1.25rem;
                font-size: 0.875rem;
            }
        }

/* roulang page: category5 */
:root {
            --color-brand-600: #2563eb;
            --color-brand-700: #1d4ed8;
            --color-brand-800: #1e40af;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-weak: #64748b;
            --color-border: #e2e8f0;
            --color-accent: #ef4444;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-coupon: 0 4px 24px rgba(37, 99, 235, 0.15);
            --shadow-coupon-lg: 0 8px 40px rgba(37, 99, 235, 0.22);
            --nav-width: 250px;
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            background-color: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
            padding: 0;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-base);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand-600);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* 左侧导航栏 */
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: #ffffff;
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-smooth);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-nav .nav-logo {
            padding: 1.5rem 1.25rem;
            border-bottom: 1px solid var(--color-border);
            flex-shrink: 0;
        }

        .sidebar-nav .nav-logo a {
            font-size: 1.35rem;
            font-weight: 700;
            color: #1e3a8a;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: -0.02em;
        }

        .sidebar-nav .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-links {
            list-style: none;
            padding: 0.75rem 0;
            flex: 1;
            margin: 0;
        }

        .sidebar-nav .nav-links li {
            margin: 0.15rem 0.75rem;
        }

        .sidebar-nav .nav-links li a {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            padding: 0.7rem 1rem;
            border-radius: 0.6rem;
            font-size: 0.925rem;
            font-weight: 500;
            color: #475569;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .sidebar-nav .nav-links li a:hover {
            background: #f1f5f9;
            color: #1e3a8a;
        }

        .sidebar-nav .nav-links li a.active {
            background: #eff6ff;
            color: #2563eb;
            font-weight: 600;
        }

        .sidebar-nav .nav-links li a .nav-icon {
            width: 20px;
            text-align: center;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-bottom {
            padding: 1rem 1.25rem;
            border-top: 1px solid var(--color-border);
            flex-shrink: 0;
            font-size: 0.8rem;
            color: #94a3b8;
        }

        /* 主内容区 */
        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* 移动端顶部导航 */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            padding: 0.75rem 1rem;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
        }

        .mobile-header .mob-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: #1e3a8a;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .mobile-header .mob-logo .logo-icon-sm {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.85rem;
        }

        .hamburger-btn {
            background: none;
            border: none;
            font-size: 1.4rem;
            color: #475569;
            padding: 0.4rem;
            line-height: 1;
            cursor: pointer;
            transition: color var(--transition-base);
        }

        .hamburger-btn:hover {
            color: #1e3a8a;
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 998;
            transition: opacity var(--transition-smooth);
        }

        .mobile-nav-overlay.show {
            display: block;
        }

        /* 按钮样式 */
        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            color: #fff;
            font-weight: 600;
            padding: 0.75rem 1.75rem;
            border-radius: 0.6rem;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
            white-space: nowrap;
        }

        .btn-brand:hover {
            background: linear-gradient(135deg, #1d4ed8, #1e40af);
            box-shadow: 0 6px 24px rgba(37, 99, 235, 0.4);
            transform: translateY(-2px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #fff;
            color: #2563eb;
            font-weight: 600;
            padding: 0.7rem 1.6rem;
            border-radius: 0.6rem;
            font-size: 0.95rem;
            border: 2px solid #2563eb;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: #eff6ff;
            border-color: #1d4ed8;
            color: #1d4ed8;
            transform: translateY(-2px);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #ef4444, #dc2626);
            color: #fff;
            font-weight: 600;
            padding: 0.8rem 2rem;
            border-radius: 0.6rem;
            font-size: 1rem;
            transition: all var(--transition-base);
            box-shadow: 0 4px 20px rgba(239, 68, 68, 0.35);
            white-space: nowrap;
        }

        .btn-accent:hover {
            box-shadow: 0 8px 28px rgba(239, 68, 68, 0.5);
            transform: translateY(-2px);
        }

        /* 板块通用 */
        .section-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .section-py {
            padding: 3rem 0;
        }

        .section-padding-lg {
            padding: 4rem 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: #2563eb;
            background: #eff6ff;
            padding: 0.35rem 0.9rem;
            border-radius: 2rem;
            letter-spacing: 0.04em;
            margin-bottom: 0.75rem;
        }

        /* 卡片 */
        .card-live {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-smooth);
            border: 1px solid var(--color-border);
        }

        .card-live:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: #cbd5e1;
        }

        /* 直播标签 */
        .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            background: #ef4444;
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.25rem 0.65rem;
            border-radius: 2rem;
            animation: livePulse 2s ease-in-out infinite;
        }

        @keyframes livePulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.6);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(239, 68, 68, 0);
            }
        }

        .live-dot {
            width: 8px;
            height: 8px;
            background: #fff;
            border-radius: 50%;
            animation: dotBlink 1s ease-in-out infinite;
        }

        @keyframes dotBlink {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        /* 统计数字 */
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: #1e3a8a;
            line-height: 1.1;
            letter-spacing: -0.02em;
        }

        /* FAQ */
        .faq-item {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: #cbd5e1;
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            padding: 1.25rem 1.5rem;
            font-weight: 600;
            color: #1e293b;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            font-size: 1rem;
            background: #fff;
            transition: background var(--transition-base);
        }

        .faq-question:hover {
            background: #f8fafc;
        }

        .faq-answer {
            padding: 0 1.5rem 1.25rem;
            color: #64748b;
            font-size: 0.925rem;
            line-height: 1.75;
            display: none;
        }

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

        .faq-item.open .faq-question {
            color: #2563eb;
            background: #f8fafc;
        }

        .faq-icon {
            transition: transform var(--transition-base);
            font-size: 0.85rem;
            color: #94a3b8;
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: #2563eb;
        }

        /* 页脚 */
        .footer-link {
            color: #94a3b8;
            transition: color var(--transition-base);
        }

        .footer-link:hover {
            color: #e2e8f0;
        }

        /* Hero 竖屏视频感 */
        .hero-live {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 550px;
            display: flex;
            align-items: center;
            border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
            overflow: hidden;
        }

        .hero-live::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(30, 41, 59, 0.7) 40%, rgba(15, 23, 42, 0.82) 100%);
            z-index: 1;
        }

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

        /* 响应式 */
        @media (max-width: 1024px) {
            .sidebar-nav {
                transform: translateX(-100%);
            }
            .sidebar-nav.open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                padding-top: 56px;
            }
            .hero-live {
                min-height: 420px;
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }
            .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .hero-live {
                min-height: 380px;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .section-py {
                padding: 2rem 0;
            }
            .section-padding-lg {
                padding: 2.5rem 0;
            }
            .stat-number {
                font-size: 1.75rem;
            }
            .btn-brand,
            .btn-outline,
            .btn-accent {
                padding: 0.6rem 1.25rem;
                font-size: 0.875rem;
            }
        }

        @media (max-width: 520px) {
            .hero-live {
                min-height: 340px;
                border-radius: 0;
            }
            .section-container {
                padding: 0 1rem;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .card-live {
                border-radius: var(--radius-lg);
            }
        }

/* roulang page: category6 */
:root {
            --color-brand-600: #2563eb;
            --color-brand-700: #1d4ed8;
            --color-brand-800: #1e40af;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-weak: #64748b;
            --color-border: #e2e8f0;
            --color-accent: #ef4444;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-coupon: 0 4px 24px rgba(37, 99, 235, 0.15);
            --shadow-coupon-lg: 0 8px 40px rgba(37, 99, 235, 0.22);
            --nav-width: 250px;
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            background-color: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
            padding: 0;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-base);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand-600);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .section-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: #ffffff;
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-smooth);
            overflow-y: auto;
            overflow-x: hidden;
        }
        .sidebar-nav .nav-logo {
            padding: 1.5rem 1.25rem;
            border-bottom: 1px solid var(--color-border);
            flex-shrink: 0;
        }
        .sidebar-nav .nav-logo a {
            font-size: 1.35rem;
            font-weight: 700;
            color: #1e3a8a;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: -0.02em;
        }
        .sidebar-nav .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .sidebar-nav .nav-links {
            list-style: none;
            padding: 0.75rem 0;
            flex: 1;
            margin: 0;
        }
        .sidebar-nav .nav-links li {
            margin: 0.15rem 0.75rem;
        }
        .sidebar-nav .nav-links li a {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            padding: 0.7rem 1rem;
            border-radius: 0.6rem;
            font-size: 0.925rem;
            font-weight: 500;
            color: #475569;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .sidebar-nav .nav-links li a:hover {
            background: #f1f5f9;
            color: #1e3a8a;
        }
        .sidebar-nav .nav-links li a.active {
            background: #eff6ff;
            color: #2563eb;
            font-weight: 600;
        }
        .sidebar-nav .nav-links li a .nav-icon {
            width: 20px;
            text-align: center;
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .sidebar-nav .nav-bottom {
            padding: 1rem 1.25rem;
            border-top: 1px solid var(--color-border);
            flex-shrink: 0;
            font-size: 0.8rem;
            color: #94a3b8;
        }
        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            padding: 0.75rem 1rem;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
        }
        .mobile-header .mob-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: #1e3a8a;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .mobile-header .mob-logo .logo-icon-sm {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.85rem;
        }
        .hamburger-btn {
            background: none;
            border: none;
            font-size: 1.4rem;
            color: #475569;
            padding: 0.4rem;
            line-height: 1;
            cursor: pointer;
            transition: color var(--transition-base);
        }
        .hamburger-btn:hover {
            color: #1e3a8a;
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 998;
            transition: opacity var(--transition-smooth);
        }
        .mobile-nav-overlay.show {
            display: block;
        }
        .footer-link {
            color: #94a3b8;
            transition: color var(--transition-base);
        }
        .footer-link:hover {
            color: #ffffff;
        }
        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            color: #fff;
            font-weight: 600;
            padding: 0.75rem 1.75rem;
            border-radius: 0.6rem;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.25);
            white-space: nowrap;
        }
        .btn-brand:hover {
            background: linear-gradient(135deg, #1d4ed8, #1e40af);
            box-shadow: 0 6px 24px rgba(37, 99, 235, 0.35);
            transform: translateY(-1px);
            color: #fff;
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            border: 2px solid #ffffff;
            color: #ffffff;
            font-weight: 600;
            padding: 0.7rem 1.6rem;
            border-radius: 0.6rem;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            background: transparent;
            white-space: nowrap;
        }
        .btn-outline-light:hover {
            background: #ffffff;
            color: #1e3a8a;
        }
        .card-hover {
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
        }
        .card-hover:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .tag-pill {
            display: inline-block;
            padding: 0.35rem 0.9rem;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 500;
            background: #eff6ff;
            color: #2563eb;
            transition: all var(--transition-base);
        }
        .tag-pill:hover {
            background: #2563eb;
            color: #fff;
        }
        @media (max-width: 1024px) {
            .sidebar-nav {
                transform: translateX(-100%);
            }
            .sidebar-nav.open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                padding-top: 56px;
            }
            :root {
                --nav-width: 250px;
            }
        }
        @media (max-width: 768px) {
            .section-container {
                padding: 0 1rem;
            }
            .hero-content h1 {
                font-size: 1.8rem !important;
            }
            .hero-content p {
                font-size: 0.95rem !important;
            }
        }
        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.5rem !important;
            }
            .hero-tags {
                gap: 0.4rem !important;
            }
            .hero-tags .tag-pill {
                font-size: 0.7rem !important;
                padding: 0.3rem 0.7rem !important;
            }
            .btn-brand,
            .btn-outline-light {
                padding: 0.6rem 1.2rem !important;
                font-size: 0.85rem !important;
            }
        }

/* roulang page: category7 */
:root {
            --color-brand-600: #2563eb;
            --color-brand-700: #1d4ed8;
            --color-brand-800: #1e40af;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-weak: #64748b;
            --color-border: #e2e8f0;
            --color-accent: #ef4444;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-coupon: 0 4px 24px rgba(37, 99, 235, 0.15);
            --shadow-coupon-lg: 0 8px 40px rgba(37, 99, 235, 0.22);
            --nav-width: 250px;
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            background-color: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
            padding: 0;
        }

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

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-base);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand-600);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: #ffffff;
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-smooth);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-nav .nav-logo {
            padding: 1.5rem 1.25rem;
            border-bottom: 1px solid var(--color-border);
            flex-shrink: 0;
        }

        .sidebar-nav .nav-logo a {
            font-size: 1.35rem;
            font-weight: 700;
            color: #1e3a8a;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: -0.02em;
        }

        .sidebar-nav .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-links {
            list-style: none;
            padding: 0.75rem 0;
            flex: 1;
        }

        .sidebar-nav .nav-links li {
            margin: 0.15rem 0.75rem;
        }

        .sidebar-nav .nav-links li a {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            padding: 0.7rem 1rem;
            border-radius: 0.6rem;
            font-size: 0.925rem;
            font-weight: 500;
            color: #475569;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .sidebar-nav .nav-links li a:hover {
            background: #f1f5f9;
            color: #1e3a8a;
        }

        .sidebar-nav .nav-links li a.active {
            background: #eff6ff;
            color: #2563eb;
            font-weight: 600;
        }

        .sidebar-nav .nav-links li a .nav-icon {
            width: 20px;
            text-align: center;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-bottom {
            padding: 1rem 1.25rem;
            border-top: 1px solid var(--color-border);
            flex-shrink: 0;
            font-size: 0.8rem;
            color: #94a3b8;
        }

        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            padding: 0.75rem 1rem;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
        }

        .mobile-header .mob-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: #1e3a8a;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .mobile-header .mob-logo .logo-icon-sm {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.85rem;
        }

        .hamburger-btn {
            background: none;
            border: none;
            font-size: 1.4rem;
            color: #475569;
            padding: 0.4rem;
            line-height: 1;
            cursor: pointer;
            transition: color var(--transition-base);
        }

        .hamburger-btn:hover {
            color: #1e3a8a;
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 998;
            transition: opacity var(--transition-smooth);
        }

        .mobile-nav-overlay.active {
            display: block;
        }

        .section-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .section-padding {
            padding: 4rem 0;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            color: #ffffff;
            padding: 0.75rem 1.75rem;
            border-radius: 0.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.25);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #1d4ed8, #1e40af);
            box-shadow: 0 6px 24px rgba(37, 99, 235, 0.35);
            transform: translateY(-1px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #ffffff;
            color: #2563eb;
            padding: 0.7rem 1.6rem;
            border-radius: 0.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid #2563eb;
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .btn-outline:hover {
            background: #eff6ff;
            border-color: #1d4ed8;
            color: #1d4ed8;
        }

        .card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            border: 1px solid var(--color-border);
        }

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

        .badge {
            display: inline-block;
            padding: 0.3rem 0.8rem;
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .badge-blue {
            background: #eff6ff;
            color: #2563eb;
        }

        .badge-green {
            background: #f0fdf4;
            color: #16a34a;
        }

        .badge-orange {
            background: #fff7ed;
            color: #ea580c;
        }

        .footer-link {
            color: #94a3b8;
            transition: color var(--transition-base);
        }

        .footer-link:hover {
            color: #e2e8f0;
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border);
            padding: 1.25rem 0;
            cursor: pointer;
            transition: all var(--transition-base);
        }

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

        .faq-item .faq-question {
            font-weight: 600;
            font-size: 1.05rem;
            color: #1e293b;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding-top 0.4s ease;
            color: #64748b;
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 0.75rem;
        }

        .faq-item .faq-icon {
            transition: transform 0.3s ease;
            flex-shrink: 0;
            color: #94a3b8;
        }

        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: #2563eb;
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: #2563eb;
            line-height: 1.1;
            letter-spacing: -0.02em;
        }

        .venue-card {
            border-radius: var(--radius-xl);
            overflow: hidden;
            background: #ffffff;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            border: 1px solid var(--color-border);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

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

        .venue-card .venue-body {
            padding: 1.25rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .price-tag {
            font-size: 1.5rem;
            font-weight: 700;
            color: #ef4444;
        }

        .price-tag span {
            font-size: 0.85rem;
            font-weight: 400;
            color: #64748b;
        }

        @media (max-width: 1024px) {
            .sidebar-nav {
                transform: translateX(-100%);
            }
            .sidebar-nav.open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                padding-top: 56px;
            }
            .section-padding {
                padding: 2.5rem 0;
            }
            .section-container {
                padding: 0 1rem;
            }
            .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .venue-card .venue-img {
                height: 160px;
            }
            .section-padding {
                padding: 2rem 0;
            }
            .stat-number {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 520px) {
            .section-container {
                padding: 0 0.75rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 0.6rem 1.2rem;
                font-size: 0.85rem;
            }
            .venue-card .venue-img {
                height: 140px;
            }
            .stat-number {
                font-size: 1.4rem;
            }
        }