/* roulang page: index */
:root {
            --primary: #3B82F6;
            --primary-hover: #2563EB;
            --primary-soft: #EFF4FA;
            --bg-white: #FFFFFF;
            --text-dark: #1F2937;
            --text-muted: #64748B;
            --border-color: #E5E7EB;
            --radius-card: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-card-hover: 0 12px 28px rgba(0, 0, 0, 0.12);
            --container-max: 1200px;
            --header-height: 72px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-white);
            color: var(--text-dark);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            display: block;
            max-width: 100%;
            height: auto;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        button,
        input {
            font-family: inherit;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding-top: 64px;
            padding-bottom: 64px;
        }
        .section-alt {
            background-color: #F8FAFC;
        }
        .section-title {
            font-size: 1.875rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            line-height: 1.3;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 760px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 600;
            background-color: var(--primary-soft);
            color: var(--primary);
            letter-spacing: 0.03em;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            padding: 10px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.2s ease;
            cursor: pointer;
            border: none;
            white-space: nowrap;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
            transform: translateY(-1px);
        }
        .btn-secondary {
            background-color: #fff;
            color: var(--text-dark);
            border: 1px solid var(--border-color);
        }
        .btn-secondary:hover {
            border-color: #94A3B8;
            background-color: #F8FAFC;
        }
        .btn-outline-light {
            background-color: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: #fff;
        }
        .card {
            background-color: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: all 0.2s ease;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            background-color: #F1F5F9;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 500;
            background-color: #EEF2FF;
            color: #4F46E5;
        }
        .tag-blue {
            background-color: #EFF4FA;
            color: var(--primary);
        }
        .tag-green {
            background-color: #ECFDF5;
            color: #059669;
        }
        .tag-amber {
            background-color: #FFFBEB;
            color: #D97706;
        }
        .tag-gray {
            background-color: #F3F4F6;
            color: #4B5563;
        }

        /* Header/Nav */
        #site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background-color: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
        }
        #site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
        }
        .logo-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo-brand i {
            color: var(--primary);
            font-size: 1.5rem;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 22px;
        }
        .nav-item {
            position: relative;
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 0.95rem;
            font-weight: 500;
            color: #374151;
            padding: 8px 0;
            cursor: pointer;
            transition: color 0.2s;
        }
        .nav-item:hover,
        .nav-item.active {
            color: var(--primary);
        }
        .nav-item .arrow {
            font-size: 0.7rem;
            color: #9CA3AF;
            transition: transform 0.2s;
        }
        .nav-item:hover .arrow {
            transform: rotate(180deg);
        }
        .nav-dropdown {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            min-width: 200px;
            background-color: #fff;
            border-radius: var(--radius-sm);
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.12);
            border: 1px solid var(--border-color);
            padding: 8px;
            opacity: 0;
            visibility: hidden;
            transition: all 0.25s ease;
            z-index: 60;
        }
        .nav-item:hover .nav-dropdown,
        .nav-item:focus-within .nav-dropdown {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }
        .nav-dropdown a {
            display: block;
            padding: 8px 12px;
            border-radius: 4px;
            font-size: 0.9rem;
            color: #374151;
            transition: all 0.15s;
        }
        .nav-dropdown a:hover {
            background-color: var(--primary-soft);
            color: var(--primary);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background-color: #F1F5F9;
            border-radius: 999px;
            padding: 6px 14px;
            gap: 8px;
            border: 1px solid transparent;
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            background-color: #fff;
        }
        .nav-search input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.9rem;
            width: 100px;
            transition: width 0.3s;
        }
        .nav-search input:focus {
            width: 160px;
        }
        .nav-search i {
            color: #9CA3AF;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 4px;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background-color: #fff;
            border-bottom: 1px solid var(--border-color);
            padding: 16px 24px;
            gap: 4px;
        }
        .mobile-menu a {
            padding: 10px 0;
            font-weight: 500;
            color: #374151;
            border-bottom: 1px solid #F1F5F9;
        }
        .mobile-menu a:last-child {
            border-bottom: none;
        }
        .mobile-menu a.active {
            color: var(--primary);
        }
        .mobile-menu.open {
            display: flex;
        }

        /* Hero */
        #hero {
            position: relative;
            background-image: url('/assets/images/864b5da2fcfcc4f5.webp');
            background-size: cover;
            background-position: center;
            padding-top: 96px;
            padding-bottom: 80px;
            isolation: isolate;
        }
        #hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(31, 41, 55, 0.82) 0%, rgba(59, 130, 246, 0.68) 100%);
            z-index: -1;
        }
        #hero .hero-content {
            max-width: 840px;
        }
        #hero h1 {
            font-size: 2.5rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }
        #hero .hero-sub {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.88);
            max-width: 680px;
        }
        .hero-status-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 32px;
            background-color: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.22);
            border-radius: 12px;
            padding: 16px 20px;
            backdrop-filter: blur(8px);
        }
        .hero-status-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
        }
        .hero-status-item i {
            font-size: 1.2rem;
            color: #BFDBFE;
        }
        .hero-icon-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .hero-icon-badge {
            display: flex;
            align-items: center;
            gap: 6px;
            background-color: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 999px;
            padding: 8px 16px;
            color: #fff;
            font-size: 0.9rem;
            font-weight: 500;
            backdrop-filter: blur(6px);
        }
        .hero-icon-badge i {
            color: #BFDBFE;
        }

        /* Feature cards */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .grid-6 {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
        }

        /* Stats */
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        /* Data table */
        .table-compare {
            width: 100%;
            border-collapse: collapse;
            background-color: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .table-compare th,
        .table-compare td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        .table-compare th {
            background-color: #F8FAFC;
            font-weight: 600;
            color: #374151;
            font-size: 0.95rem;
        }
        .table-compare td {
            font-size: 0.9rem;
            color: #4B5563;
        }

        /* Timeline */
        .timeline {
            position: relative;
            padding-left: 28px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 0;
            bottom: 0;
            width: 2px;
            background-color: var(--border-color);
        }
        .timeline-item {
            position: relative;
            padding-bottom: 24px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -22px;
            top: 6px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: var(--primary);
            box-shadow: 0 0 0 4px #DBEAFE;
        }

        /* FAQ */
        .faq-item {
            background-color: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 20px;
            margin-bottom: 12px;
            transition: all 0.2s;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-card-hover);
        }
        .faq-question {
            font-weight: 600;
            color: var(--text-dark);
            font-size: 1rem;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .faq-question i {
            color: var(--primary);
            margin-top: 3px;
            flex-shrink: 0;
        }
        .faq-answer {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-top: 10px;
            padding-left: 22px;
        }

        /* CTA section */
        #cta {
            background: linear-gradient(135deg, #1D4ED8 0%, #3B82F6 100%);
            border-radius: 16px;
            color: #fff;
        }

        /* Footer */
        #site-footer {
            background-color: #111827;
            color: #D1D5DB;
            padding-top: 48px;
            padding-bottom: 36px;
        }
        #site-footer .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
        }
        #site-footer a {
            color: #D1D5DB;
            transition: color 0.2s;
        }
        #site-footer a:hover {
            color: #fff;
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-links .divider {
            color: #4B5563;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-6 {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-actions .nav-search {
                display: none;
            }
            .hamburger {
                display: block;
            }
            #hero {
                padding-top: 64px;
                padding-bottom: 56px;
            }
            #hero h1 {
                font-size: 1.75rem;
            }
            #hero .hero-sub {
                font-size: 0.95rem;
            }
            .hero-status-bar {
                gap: 10px 16px;
                padding: 12px 16px;
            }
            .section {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .grid-3,
            .grid-2,
            .grid-4,
            .grid-6 {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stat-number {
                font-size: 1.75rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-icon-badge {
                font-size: 0.8rem;
                padding: 6px 12px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #3B82F6;
            --primary-hover: #2563EB;
            --primary-soft: #EFF4FA;
            --bg-white: #FFFFFF;
            --text-dark: #1F2937;
            --text-muted: #64748B;
            --border-color: #E5E7EB;
            --radius-card: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-card-hover: 0 12px 28px rgba(0, 0, 0, 0.12);
            --container-max: 1200px;
            --header-height: 72px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-white);
            color: var(--text-dark);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            display: block;
            max-width: 100%;
            height: auto;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        button,
        input {
            font-family: inherit;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding-top: 64px;
            padding-bottom: 64px;
        }
        .section-alt {
            background-color: #F8FAFC;
        }
        .section-title {
            font-size: 1.875rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            line-height: 1.3;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 760px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 600;
            background-color: var(--primary-soft);
            color: var(--primary);
            letter-spacing: 0.03em;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            padding: 10px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.2s ease;
            cursor: pointer;
            border: none;
            white-space: nowrap;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
            transform: translateY(-1px);
        }
        .btn-secondary {
            background-color: #fff;
            color: var(--text-dark);
            border: 1px solid var(--border-color);
        }
        .btn-secondary:hover {
            border-color: #94A3B8;
            background-color: #F8FAFC;
        }
        .card {
            background-color: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: all 0.2s ease;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            background-color: #F1F5F9;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 500;
            background-color: #EEF2FF;
            color: #4F46E5;
        }
        .tag-blue {
            background-color: #EFF4FA;
            color: var(--primary);
        }
        .tag-green {
            background-color: #ECFDF5;
            color: #059669;
        }
        .tag-amber {
            background-color: #FFFBEB;
            color: #D97706;
        }
        .tag-gray {
            background-color: #F3F4F6;
            color: #4B5563;
        }
        #site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background-color: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
        }
        #site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
        }
        .logo-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo-brand i {
            color: var(--primary);
            font-size: 1.5rem;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .nav-item {
            position: relative;
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 0.95rem;
            font-weight: 500;
            color: #374151;
            padding: 8px 0;
            cursor: pointer;
            transition: color 0.2s;
        }
        .nav-item:hover,
        .nav-item.active {
            color: var(--primary);
        }
        .nav-item .arrow {
            font-size: 0.7rem;
            color: #9CA3AF;
            transition: transform 0.2s;
        }
        .nav-item:hover .arrow {
            transform: rotate(180deg);
        }
        .nav-dropdown {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            min-width: 180px;
            background-color: #fff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
            padding: 8px;
            opacity: 0;
            visibility: hidden;
            transition: all 0.2s ease;
            z-index: 60;
        }
        .nav-item:hover .nav-dropdown {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }
        .nav-dropdown a {
            display: block;
            padding: 7px 12px;
            border-radius: 6px;
            font-size: 0.85rem;
            color: #374151;
            transition: all 0.15s;
        }
        .nav-dropdown a:hover {
            background-color: #EFF4FA;
            color: var(--primary);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search {
            display: flex;
            align-items: center;
            gap: 6px;
            background-color: #F3F4F6;
            border: 1px solid transparent;
            border-radius: 6px;
            padding: 6px 12px;
            transition: all 0.2s;
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            background-color: #fff;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
        }
        .nav-search i {
            font-size: 0.8rem;
            color: #9CA3AF;
        }
        .nav-search input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.85rem;
            color: var(--text-dark);
            width: 120px;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.3rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 4px;
            border-radius: 4px;
        }
        .hamburger:hover {
            background-color: #F3F4F6;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding-top: 20px;
            padding-bottom: 4px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: #CBD5E1;
        }
        .breadcrumb .current {
            color: var(--text-dark);
            font-weight: 500;
        }
        .guide-hero {
            background: linear-gradient(135deg, #F8FAFC 0%, #EFF4FA 100%);
            border-bottom: 1px solid var(--border-color);
            padding-top: 28px;
            padding-bottom: 52px;
        }
        .guide-hero h1 {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-top: 12px;
        }
        .guide-hero .summary {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 760px;
            margin-top: 14px;
            line-height: 1.8;
        }
        .guide-hero .tags-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 18px;
        }
        .guide-card {
            display: flex;
            flex-direction: column;
            height: 100%;
            overflow: hidden;
        }
        .guide-card .card-body {
            padding: 18px 18px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.45;
            margin-bottom: 8px;
        }
        .guide-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }
        .guide-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 14px;
            padding-top: 12px;
            border-top: 1px solid #F1F5F9;
        }
        .guide-card .date {
            font-size: 0.78rem;
            color: #94A3B8;
        }
        .step-card {
            position: relative;
            padding: 22px;
            height: 100%;
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: all 0.2s ease;
        }
        .step-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 14px;
        }
        .step-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .tip-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .tip-list li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 16px 18px;
            background: #fff;
            border-radius: 10px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
        }
        .tip-list li i {
            color: var(--primary);
            font-size: 1rem;
            margin-top: 3px;
            flex-shrink: 0;
        }
        .tip-list li .tip-content h4 {
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .tip-list li .tip-content p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }
        .myth-card {
            padding: 22px;
            height: 100%;
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            border-left: 4px solid #F59E0B;
            transition: all 0.2s ease;
        }
        .myth-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .myth-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .myth-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }
        .view-more-wrapper {
            text-align: center;
            padding-top: 12px;
        }
        #site-footer {
            background-color: #111827;
            color: #E5E7EB;
            padding: 56px 0 28px;
            margin-top: 0;
        }
        #site-footer .footer-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
        }
        #site-footer .footer-brand i {
            color: var(--primary);
        }
        #site-footer a:hover {
            color: #fff;
        }
        #site-footer .footer-links a {
            margin-right: 6px;
        }
        #site-footer .divider {
            margin: 0 6px;
            color: #4B5563;
        }
        .mobile-menu {
            display: none;
            background-color: #fff;
            border-bottom: 1px solid var(--border-color);
            padding: 12px 24px 20px;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            z-index: 49;
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1);
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu a,
        .mobile-menu span {
            display: block;
            padding: 10px 0;
            font-size: 0.95rem;
            color: #374151;
            border-bottom: 1px solid #F3F4F6;
            cursor: pointer;
        }
        .mobile-menu a:hover,
        .mobile-menu span:hover {
            color: var(--primary);
        }
        .mobile-menu .mobile-sub {
            padding-left: 16px;
            font-size: 0.85rem;
            color: #64748B;
        }
        @media (max-width: 1024px) {
            .nav-desktop {
                gap: 14px;
            }
            .nav-search input {
                width: 80px;
            }
            .guide-hero h1 {
                font-size: 2.1rem;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-actions .nav-search {
                display: none;
            }
            .nav-actions .btn-primary {
                padding: 8px 14px;
                font-size: 0.85rem;
            }
            .hamburger {
                display: block;
            }
            .section {
                padding-top: 48px;
                padding-bottom: 48px;
            }
            .guide-hero {
                padding-top: 16px;
                padding-bottom: 36px;
            }
            .guide-hero h1 {
                font-size: 1.75rem;
            }
            .guide-hero .summary {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .guide-hero h1 {
                font-size: 1.5rem;
            }
            .btn {
                padding: 8px 14px;
                font-size: 0.85rem;
            }
            .card-img {
                aspect-ratio: 4/3;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #3B82F6;
            --primary-hover: #2563EB;
            --primary-soft: #EFF4FA;
            --bg-white: #FFFFFF;
            --text-dark: #1F2937;
            --text-muted: #64748B;
            --border-color: #E5E7EB;
            --radius-card: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-card-hover: 0 12px 28px rgba(0, 0, 0, 0.12);
            --container-max: 1200px;
            --header-height: 72px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-white);
            color: var(--text-dark);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

        button,
        input {
            font-family: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding-top: 64px;
            padding-bottom: 64px;
        }

        .section-alt {
            background-color: #F8FAFC;
        }

        .section-title {
            font-size: 1.875rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            line-height: 1.3;
            margin: 0 0 8px;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 760px;
            margin: 0;
            line-height: 1.7;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 600;
            background-color: var(--primary-soft);
            color: var(--primary);
            letter-spacing: 0.03em;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            padding: 10px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.2s ease;
            cursor: pointer;
            border: none;
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
            transform: translateY(-1px);
        }

        .btn-secondary {
            background-color: #fff;
            color: var(--text-dark);
            border: 1px solid var(--border-color);
        }

        .btn-secondary:hover {
            border-color: #94A3B8;
            background-color: #F8FAFC;
        }

        .card {
            background-color: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: all 0.2s ease;
            overflow: hidden;
        }

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

        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            background-color: #F1F5F9;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 500;
            background-color: #EEF2FF;
            color: #4F46E5;
        }

        .tag-blue {
            background-color: #EFF4FA;
            color: var(--primary);
        }

        .tag-green {
            background-color: #ECFDF5;
            color: #059669;
        }

        .tag-amber {
            background-color: #FFFBEB;
            color: #D97706;
        }

        .tag-gray {
            background-color: #F3F4F6;
            color: #4B5563;
        }

        /* Header/Nav */
        #site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background-color: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
        }

        #site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 16px;
        }

        .logo-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .logo-brand i {
            color: var(--primary);
            font-size: 1.5rem;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 18px;
            margin: 0 auto;
        }

        .nav-item {
            position: relative;
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 0.95rem;
            font-weight: 500;
            color: #374151;
            padding: 8px 0;
            cursor: pointer;
            transition: color 0.2s;
            white-space: nowrap;
        }

        .nav-item:hover,
        .nav-item.active {
            color: var(--primary);
        }

        .nav-item .arrow {
            font-size: 0.7rem;
            color: #9CA3AF;
            transition: transform 0.2s;
        }

        .nav-item:hover .arrow {
            transform: rotate(180deg);
        }

        .has-dropdown {
            position: relative;
        }

        .dropdown-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background-color: #fff;
            border-radius: 8px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
            border: 1px solid var(--border-color);
            padding: 6px 0;
            min-width: 160px;
            opacity: 0;
            visibility: hidden;
            transition: all 0.25s ease;
            z-index: 60;
        }

        .has-dropdown:hover .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }

        .dropdown-panel a {
            display: block;
            padding: 8px 16px;
            font-size: 0.85rem;
            color: #374151;
            transition: all 0.15s;
        }

        .dropdown-panel a:hover {
            background-color: var(--primary-soft);
            color: var(--primary);
        }

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

        .nav-search {
            display: flex;
            align-items: center;
            gap: 6px;
            background-color: #F8FAFC;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            padding: 6px 12px;
            transition: border-color 0.2s;
        }

        .nav-search:focus-within {
            border-color: var(--primary);
        }

        .nav-search i {
            color: #9CA3AF;
            font-size: 0.8rem;
        }

        .nav-search input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.85rem;
            color: var(--text-dark);
            width: 110px;
        }

        .nav-search input::placeholder {
            color: #9CA3AF;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.25rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 6px;
            border-radius: 4px;
        }

        .hamburger:hover {
            background-color: #F1F5F9;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 16px 0;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 24px;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.2s;
        }

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

        .breadcrumb .separator {
            color: #CBD5E1;
            margin: 0 2px;
        }

        .breadcrumb .current {
            color: var(--text-dark);
            font-weight: 500;
        }

        /* Page Hero */
        .page-hero {
            background: linear-gradient(135deg, #EFF4FA 0%, #F8FAFC 50%, #FFFFFF 100%);
            border-radius: var(--radius-card);
            padding: 40px 32px;
            border: 1px solid var(--border-color);
            margin-bottom: 40px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(59, 130, 246, 0.06);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero h1 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            line-height: 1.3;
            margin: 0 0 12px;
            position: relative;
            z-index: 1;
        }

        .page-hero p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 720px;
            margin: 0;
            position: relative;
            z-index: 1;
        }

        /* Event List */
        .event-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

        .event-card .card-body {
            padding: 16px 18px 18px;
        }

        .event-card .card-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .event-card .card-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0 0 12px;
        }

        .event-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.78rem;
            color: #94A3B8;
        }

        /* Calendar Section */
        .calendar-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
        }

        .calendar-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 20px;
            background-color: #fff;
            border-bottom: 1px solid #F1F5F9;
            transition: background-color 0.15s;
        }

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

        .calendar-item:hover {
            background-color: #F8FAFC;
        }

        .calendar-date {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-width: 52px;
            height: 52px;
            background-color: var(--primary-soft);
            border-radius: 8px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .calendar-date .day {
            font-size: 1.25rem;
            font-weight: 700;
            line-height: 1.2;
        }

        .calendar-date .month {
            font-size: 0.7rem;
            font-weight: 500;
        }

        .calendar-info {
            flex: 1;
            min-width: 0;
        }

        .calendar-info .event-name {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 2px;
        }

        .calendar-info .event-detail {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
        }

        .calendar-status {
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.72rem;
            font-weight: 600;
            flex-shrink: 0;
        }

        .status-open {
            background-color: #ECFDF5;
            color: #059669;
        }

        .status-soon {
            background-color: #FFFBEB;
            color: #D97706;
        }

        .status-ended {
            background-color: #F3F4F6;
            color: #94A3B8;
        }

        /* Guide Section */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 24px;
        }

        .guide-card {
            background-color: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 22px 20px;
            transition: all 0.2s ease;
        }

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

        .guide-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background-color: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.15rem;
            margin-bottom: 14px;
        }

        .guide-card h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 8px;
        }

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

        /* Review Section */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 24px;
        }

        .review-card {
            display: flex;
            flex-direction: column;
        }

        .review-card .card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .review-card .card-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .review-card .card-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0 0 12px;
            flex: 1;
        }

        /* Footer */
        #site-footer {
            background-color: #111827;
            color: #fff;
            padding: 48px 0 24px;
            margin-top: 40px;
        }

        #site-footer .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        #site-footer .footer-brand i {
            color: var(--primary);
        }

        #site-footer h4 {
            margin: 0 0 8px;
        }

        #site-footer a {
            color: #94A3B8;
            transition: color 0.2s;
            display: inline-block;
            margin-bottom: 4px;
        }

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

        #site-footer .border-t {
            border-top: 1px solid #374151;
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-links .divider {
            color: #4B5563;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-desktop {
                gap: 12px;
            }
            .nav-item {
                font-size: 0.85rem;
            }
            .nav-search input {
                width: 80px;
            }
            .section {
                padding-top: 48px;
                padding-bottom: 48px;
            }
            .event-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .review-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-actions .btn {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .hamburger {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .page-hero {
                padding: 28px 20px;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .event-grid {
                grid-template-columns: 1fr;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .calendar-item {
                flex-wrap: wrap;
                padding: 12px 14px;
            }
            .calendar-date {
                min-width: 44px;
                height: 44px;
            }
            #site-footer .container {
                flex-wrap: wrap;
            }
            .footer-links {
                flex-wrap: wrap;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section {
                padding-top: 36px;
                padding-bottom: 36px;
            }
            .page-hero {
                padding: 20px 16px;
                border-radius: 8px;
            }
            .page-hero h1 {
                font-size: 1.3rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
                padding: 12px 0;
            }
            .calendar-info .event-name {
                font-size: 0.85rem;
            }
            .calendar-status {
                font-size: 0.65rem;
                padding: 3px 8px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #3B82F6;
            --primary-hover: #2563EB;
            --primary-soft: #EFF4FA;
            --bg-white: #FFFFFF;
            --text-dark: #1F2937;
            --text-muted: #64748B;
            --border-color: #E5E7EB;
            --radius-card: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-card-hover: 0 12px 28px rgba(0, 0, 0, 0.12);
            --container-max: 1200px;
            --header-height: 72px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-white);
            color: var(--text-dark);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

        button,
        input {
            font-family: inherit;
        }

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

        .container {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding-top: 64px;
            padding-bottom: 64px;
        }

        .section-alt {
            background-color: #F8FAFC;
        }

        .section-title {
            font-size: 1.875rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 760px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 600;
            background-color: var(--primary-soft);
            color: var(--primary);
            letter-spacing: 0.03em;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            padding: 10px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.2s ease;
            cursor: pointer;
            border: none;
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
            transform: translateY(-1px);
        }

        .btn-secondary {
            background-color: #fff;
            color: var(--text-dark);
            border: 1px solid var(--border-color);
        }

        .btn-secondary:hover {
            border-color: #94A3B8;
            background-color: #F8FAFC;
        }

        .btn-outline-light {
            background-color: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: #fff;
        }

        .card {
            background-color: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: all 0.2s ease;
        }

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

        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            background-color: #F1F5F9;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 500;
            background-color: #EEF2FF;
            color: #4F46E5;
        }

        .tag-blue {
            background-color: #EFF4FA;
            color: var(--primary);
        }

        .tag-green {
            background-color: #ECFDF5;
            color: #059669;
        }

        .tag-amber {
            background-color: #FFFBEB;
            color: #D97706;
        }

        .tag-gray {
            background-color: #F3F4F6;
            color: #4B5563;
        }

        /* Header/Nav */
        #site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background-color: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
        }

        #site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
        }

        .logo-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo-brand i {
            color: var(--primary);
            font-size: 1.5rem;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .nav-item {
            position: relative;
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 0.95rem;
            font-weight: 500;
            color: #374151;
            padding: 8px 0;
            cursor: pointer;
            transition: color 0.2s;
            white-space: nowrap;
        }

        .nav-item:hover,
        .nav-item.active {
            color: var(--primary);
        }

        .nav-item .arrow {
            font-size: 0.7rem;
            color: #9CA3AF;
            transition: transform 0.2s;
        }

        .nav-item:hover .arrow {
            transform: rotate(180deg);
        }

        .nav-item.has-dropdown {
            position: relative;
        }

        .nav-item.has-dropdown .dropdown-panel {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 180px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1);
            padding: 8px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all 0.2s ease;
            z-index: 60;
        }

        .nav-item.has-dropdown:hover .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-panel a {
            display: block;
            padding: 8px 16px;
            font-size: 0.85rem;
            color: #4B5563;
            transition: all 0.15s;
        }

        .dropdown-panel a:hover {
            color: var(--primary);
            background-color: var(--primary-soft);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #F1F5F9;
            border-radius: var(--radius-sm);
            padding: 6px 12px;
            border: 1px solid transparent;
            transition: all 0.2s;
        }

        .nav-search:focus-within {
            border-color: var(--primary);
            background: #fff;
        }

        .nav-search i {
            color: #9CA3AF;
            font-size: 0.85rem;
        }

        .nav-search input {
            border: none;
            background: transparent;
            font-size: 0.85rem;
            outline: none;
            width: 120px;
            color: var(--text-dark);
        }

        .hamburger {
            display: none;
            background: none;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            color: var(--text-dark);
            cursor: pointer;
            font-size: 1rem;
            transition: all 0.2s;
        }

        .hamburger:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
        }

        /* Mobile nav */
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            padding: 12px 24px;
            gap: 4px;
        }

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

        .mobile-nav a {
            padding: 8px 0;
            border-bottom: 1px solid #F1F5F9;
            font-size: 0.95rem;
            color: var(--text-dark);
        }

        .mobile-nav a:last-child {
            border-bottom: none;
        }

        .mobile-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.2s;
        }

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

        .breadcrumb .separator {
            color: #CBD5E1;
        }

        .breadcrumb .current {
            color: var(--text-dark);
            font-weight: 500;
        }

        /* Page hero */
        .page-hero {
            background: linear-gradient(135deg, #F8FAFC 0%, #EFF4FA 100%);
            padding-top: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid var(--border-color);
        }

        .page-hero h1 {
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.03em;
            line-height: 1.25;
            margin-bottom: 12px;
        }

        .page-hero p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 760px;
            margin-top: 8px;
        }

        /* Rule list */
        .rule-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all 0.2s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

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

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

        .rule-card .rule-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
            line-height: 1.35;
        }

        .rule-card .rule-summary {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.55;
            flex: 1;
        }

        .rule-card .rule-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 14px;
            padding-top: 12px;
            border-top: 1px solid #F1F5F9;
            font-size: 0.78rem;
            color: #94A3B8;
        }

        /* Pattern diagram */
        .pattern-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .pattern-row {
            display: flex;
            align-items: center;
            gap: 14px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 14px 18px;
            box-shadow: var(--shadow-card);
            transition: all 0.2s;
        }

        .pattern-row:hover {
            border-color: var(--primary);
            box-shadow: 0 6px 18px rgba(59, 130, 246, 0.15);
        }

        .pattern-rank {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .pattern-name {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-dark);
            flex-shrink: 0;
        }

        .pattern-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.4;
        }

        /* Scoring section */
        .scoring-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .scoring-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: all 0.2s;
        }

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

        .scoring-item .score-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.15rem;
            margin-bottom: 12px;
        }

        .scoring-item h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .scoring-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* Violation */
        .violation-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .violation-item {
            display: flex;
            gap: 14px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 16px 18px;
            box-shadow: var(--shadow-card);
            transition: all 0.2s;
        }

        .violation-item:hover {
            border-color: #FCA5A5;
            background: #FFF5F5;
        }

        .violation-item .v-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: #FEF2F2;
            color: #DC2626;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 0.95rem;
        }

        .violation-item .v-content h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .violation-item .v-content p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, #1E40AF 0%, #3B82F6 60%, #60A5FA 100%);
            border-radius: 16px;
            padding: 48px 40px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin-bottom: 8px;
        }

        .cta-section p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 500px;
        }

        .cta-section .btn-cta-light {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
            transition: all 0.2s;
            white-space: nowrap;
        }

        .cta-section .btn-cta-light:hover {
            background: #F0F9FF;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
            transform: translateY(-1px);
        }

        /* Footer */
        #site-footer {
            background-color: #111827;
            color: #fff;
            padding-top: 48px;
            padding-bottom: 24px;
        }

        #site-footer a {
            color: #94A3B8;
            transition: color 0.2s;
        }

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

        .footer-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand i {
            color: var(--primary);
        }

        .footer-links a {
            margin-right: 8px;
        }

        .footer-links .divider {
            color: #4B5563;
            margin-right: 8px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-desktop {
                gap: 12px;
            }
            .nav-item {
                font-size: 0.85rem;
            }
            .nav-search input {
                width: 80px;
            }
            .nav-actions .btn-primary {
                padding: 8px 14px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-actions .nav-search {
                display: none;
            }
            .nav-actions .btn-primary {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .section {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .page-hero h1 {
                font-size: 1.75rem;
            }
            .page-hero p {
                font-size: 0.95rem;
            }
            .cta-section {
                padding: 32px 24px;
                flex-direction: column;
                text-align: left;
                align-items: flex-start;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .pattern-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .violation-item {
                flex-direction: column;
                gap: 8px;
            }
            .scoring-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .logo-brand {
                font-size: 1.15rem;
            }
            .logo-brand i {
                font-size: 1.25rem;
            }
            .page-hero {
                padding-top: 32px;
                padding-bottom: 32px;
            }
            .page-hero h1 {
                font-size: 1.4rem;
            }
            .section {
                padding-top: 32px;
                padding-bottom: 32px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .rule-card .rule-title {
                font-size: 1rem;
            }
            .pattern-rank {
                width: 28px;
                height: 28px;
                font-size: 0.75rem;
            }
            .cta-section .btn-cta-light {
                width: 100%;
                text-align: center;
                justify-content: center;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #3B82F6;
            --primary-hover: #2563EB;
            --primary-soft: #EFF4FA;
            --bg-white: #FFFFFF;
            --text-dark: #1F2937;
            --text-muted: #64748B;
            --border-color: #E5E7EB;
            --radius-card: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-card-hover: 0 12px 28px rgba(0, 0, 0, 0.12);
            --container-max: 1200px;
            --header-height: 72px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-white);
            color: var(--text-dark);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            display: block;
            max-width: 100%;
            height: auto;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        button,
        input {
            font-family: inherit;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding-top: 56px;
            padding-bottom: 56px;
        }
        .section-alt {
            background-color: #F8FAFC;
        }
        .section-title {
            font-size: 1.875rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            line-height: 1.3;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 760px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 600;
            background-color: var(--primary-soft);
            color: var(--primary);
            letter-spacing: 0.03em;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            padding: 10px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.2s ease;
            cursor: pointer;
            border: none;
            white-space: nowrap;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
            transform: translateY(-1px);
        }
        .btn-secondary {
            background-color: #fff;
            color: var(--text-dark);
            border: 1px solid var(--border-color);
        }
        .btn-secondary:hover {
            border-color: #94A3B8;
            background-color: #F8FAFC;
        }
        .card {
            background-color: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: all 0.2s ease;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            background-color: #F1F5F9;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 500;
            background-color: #EEF2FF;
            color: #4F46E5;
        }
        .tag-blue {
            background-color: #EFF4FA;
            color: var(--primary);
        }
        .tag-green {
            background-color: #ECFDF5;
            color: #059669;
        }
        .tag-amber {
            background-color: #FFFBEB;
            color: #D97706;
        }
        .tag-gray {
            background-color: #F3F4F6;
            color: #4B5563;
        }

        /* Header/Nav */
        #site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background-color: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
        }
        #site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
        }
        .logo-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .logo-brand i {
            color: var(--primary);
            font-size: 1.5rem;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .nav-item {
            position: relative;
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 0.95rem;
            font-weight: 500;
            color: #374151;
            padding: 8px 0;
            cursor: pointer;
            transition: color 0.2s;
        }
        .nav-item:hover,
        .nav-item.active {
            color: var(--primary);
        }
        .nav-item .arrow {
            font-size: 0.7rem;
            color: #9CA3AF;
            transition: transform 0.2s;
        }
        .nav-item:hover .arrow {
            transform: rotate(180deg);
        }
        .has-dropdown .dropdown-menu {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 180px;
            background-color: #fff;
            border-radius: var(--radius-sm);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.14);
            border: 1px solid var(--border-color);
            padding: 8px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(6px);
            transition: all 0.2s ease;
            z-index: 60;
        }
        .has-dropdown:hover .dropdown-menu,
        .has-dropdown:focus-within .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .dropdown-menu a {
            display: block;
            padding: 8px 16px;
            font-size: 0.88rem;
            color: #4B5563;
            transition: all 0.15s;
        }
        .dropdown-menu a:hover {
            background-color: var(--primary-soft);
            color: var(--primary);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background-color: #F3F4F6;
            border-radius: 999px;
            padding: 6px 14px;
            border: 1px solid transparent;
            transition: border-color 0.2s;
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            background-color: #fff;
        }
        .nav-search i {
            color: #9CA3AF;
            font-size: 0.85rem;
        }
        .nav-search input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.88rem;
            width: 120px;
            color: var(--text-dark);
        }
        .nav-search input::placeholder {
            color: #9CA3AF;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background-color 0.2s;
        }
        .hamburger:hover {
            background-color: #F3F4F6;
        }

        /* Mobile nav */
        #mobileNav {
            display: none;
            background-color: #fff;
            border-bottom: 1px solid var(--border-color);
            padding: 16px 24px 20px;
            flex-direction: column;
            gap: 8px;
        }
        #mobileNav.open {
            display: flex;
        }
        #mobileNav a {
            font-size: 0.95rem;
            font-weight: 500;
            color: #374151;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            transition: all 0.15s;
        }
        #mobileNav a:hover,
        #mobileNav a.active {
            background-color: var(--primary-soft);
            color: var(--primary);
        }
        #mobileNav .mobile-dropdown-group {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        #mobileNav .mobile-dropdown-group .mobile-parent {
            font-weight: 600;
            color: var(--text-dark);
            padding: 10px 12px;
            font-size: 0.95rem;
        }
        #mobileNav .mobile-dropdown-group a {
            padding-left: 28px;
            font-size: 0.88rem;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 20px 0 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--primary);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--primary-hover);
        }
        .breadcrumb .separator {
            color: #CBD5E1;
        }

        /* Community specific */
        .community-hero {
            padding: 32px 0 40px;
        }
        .community-hero h1 {
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .community-hero .hero-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 780px;
            line-height: 1.8;
        }
        .discussion-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .discussion-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            padding: 20px 24px;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: all 0.2s ease;
        }
        .discussion-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: #CBD5E1;
        }
        .discussion-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            flex-shrink: 0;
            font-size: 1.1rem;
        }
        .discussion-content {
            flex: 1;
            min-width: 0;
        }
        .discussion-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .discussion-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.82rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .discussion-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .player-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all 0.2s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .player-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .player-card .player-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background-color: #F1F5F9;
        }
        .player-card .player-body {
            padding: 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .player-card .player-name {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .player-card .player-tagline {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .activity-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 22px 24px;
            transition: all 0.2s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .activity-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: #CBD5E1;
        }
        .activity-card .activity-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background-color: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.3rem;
            margin-bottom: 6px;
        }
        .activity-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.4;
        }
        .activity-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }
        .share-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 20px;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: all 0.2s ease;
        }
        .share-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-1px);
        }
        .share-item .share-index {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background-color: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .share-item .share-body {
            flex: 1;
            min-width: 0;
        }
        .share-item .share-title {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .share-item .share-summary {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Footer */
        #site-footer {
            background-color: #111827;
            color: #E5E7EB;
            padding: 48px 0 28px;
        }
        .footer-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand i {
            color: var(--primary);
            font-size: 1.3rem;
        }
        #site-footer h4 {
            font-weight: 600;
            font-size: 0.9rem;
            color: #fff;
            margin-bottom: 12px;
        }
        #site-footer .footer-links a {
            display: block;
            color: #94A3B8;
            font-size: 0.85rem;
            padding: 3px 0;
            transition: color 0.2s;
        }
        #site-footer .footer-links a:hover {
            color: #fff;
        }
        #site-footer .footer-bottom {
            border-top: 1px solid #374151;
            margin-top: 32px;
            padding-top: 20px;
            font-size: 0.82rem;
            color: #94A3B8;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        #site-footer .footer-bottom .divider {
            margin: 0 8px;
            color: #4B5563;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-desktop {
                gap: 14px;
            }
            .nav-search input {
                width: 80px;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .hamburger {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .community-hero h1 {
                font-size: 2rem;
            }
            .section {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .discussion-item {
                padding: 16px 18px;
                gap: 14px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        @media (max-width: 520px) {
            .community-hero h1 {
                font-size: 1.6rem;
            }
            .community-hero .hero-desc {
                font-size: 0.95rem;
            }
            .btn {
                padding: 8px 16px;
                font-size: 0.88rem;
            }
            .discussion-item {
                flex-direction: column;
                gap: 10px;
            }
            .discussion-avatar {
                width: 38px;
                height: 38px;
                font-size: 0.95rem;
            }
            #site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #3B82F6;
            --primary-hover: #2563EB;
            --primary-soft: #EFF4FA;
            --bg-white: #FFFFFF;
            --text-dark: #1F2937;
            --text-muted: #64748B;
            --border-color: #E5E7EB;
            --radius-card: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-card-hover: 0 12px 28px rgba(0, 0, 0, 0.12);
            --container-max: 1200px;
            --header-height: 72px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-white);
            color: var(--text-dark);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

        button,
        input {
            font-family: inherit;
        }

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

        .container {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding-top: 64px;
            padding-bottom: 64px;
        }

        .section-alt {
            background-color: #F8FAFC;
        }

        .section-title {
            font-size: 1.875rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 760px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 600;
            background-color: var(--primary-soft);
            color: var(--primary);
            letter-spacing: 0.03em;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            padding: 10px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.2s ease;
            cursor: pointer;
            border: none;
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
            transform: translateY(-1px);
        }

        .btn-secondary {
            background-color: #fff;
            color: var(--text-dark);
            border: 1px solid var(--border-color);
        }

        .btn-secondary:hover {
            border-color: #94A3B8;
            background-color: #F8FAFC;
        }

        .card {
            background-color: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: all 0.2s ease;
        }

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

        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            background-color: #F1F5F9;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 500;
            background-color: #EEF2FF;
            color: #4F46E5;
        }

        .tag-blue {
            background-color: #EFF4FA;
            color: var(--primary);
        }
        .tag-green {
            background-color: #ECFDF5;
            color: #059669;
        }
        .tag-amber {
            background-color: #FFFBEB;
            color: #D97706;
        }
        .tag-gray {
            background-color: #F3F4F6;
            color: #4B5563;
        }
        .tag-red {
            background-color: #FEF2F2;
            color: #DC2626;
        }

        #site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background-color: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
        }

        #site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
        }

        .logo-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo-brand i {
            color: var(--primary);
            font-size: 1.5rem;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 22px;
        }

        .nav-item {
            position: relative;
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 0.95rem;
            font-weight: 500;
            color: #374151;
            padding: 8px 0;
            cursor: pointer;
            transition: color 0.2s;
        }

        .nav-item:hover,
        .nav-item.active {
            color: var(--primary);
        }

        .nav-item .arrow {
            font-size: 0.7rem;
            color: #9CA3AF;
            transition: transform 0.2s;
        }

        .nav-item:hover .arrow {
            transform: rotate(180deg);
        }

        .nav-dropdown {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 200px;
            background-color: #fff;
            border-radius: var(--radius-sm);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
            border: 1px solid var(--border-color);
            padding: 8px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all 0.2s ease;
            z-index: 60;
        }

        .nav-item:hover .nav-dropdown {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .nav-dropdown a {
            display: block;
            padding: 8px 16px;
            font-size: 0.875rem;
            color: #374151;
            transition: all 0.2s;
        }

        .nav-dropdown a:hover {
            background-color: var(--primary-soft);
            color: var(--primary);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-search {
            display: flex;
            align-items: center;
            gap: 6px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 6px 12px;
            background-color: #F9FAFB;
            transition: border-color 0.2s;
        }

        .nav-search:focus-within {
            border-color: var(--primary);
        }

        .nav-search i {
            font-size: 0.85rem;
            color: #9CA3AF;
        }

        .nav-search input {
            border: none;
            background: transparent;
            font-size: 0.875rem;
            color: var(--text-dark);
            width: 130px;
            outline: none;
        }

        .nav-search input::placeholder {
            color: #9CA3AF;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.3rem;
            color: var(--text-dark);
            cursor: pointer;
        }

        #mobile-menu {
            display: none;
            background-color: #fff;
            border-bottom: 1px solid var(--border-color);
            padding: 16px 24px;
        }

        #mobile-menu a {
            display: block;
            padding: 10px 0;
            font-size: 0.95rem;
            color: #374151;
            border-bottom: 1px solid #F3F4F6;
        }

        #mobile-menu a:last-child {
            border-bottom: none;
        }

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

        #site-footer {
            background-color: #111827;
            color: #E5E7EB;
            padding: 48px 0 24px;
        }

        #site-footer .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .footer-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand i {
            color: var(--primary);
        }

        #site-footer a {
            color: #94A3B8;
            transition: color 0.2s;
        }

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

        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-links .divider {
            color: #4B5563;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-muted);
            padding: 16px 0;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.2s;
        }

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

        .breadcrumb .separator {
            color: #D1D5DB;
        }

        .breadcrumb .current {
            color: var(--text-dark);
            font-weight: 500;
        }

        .news-card {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-card .card-body {
            padding: 16px 20px 20px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card .card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.45;
            margin-bottom: 8px;
        }

        .news-card .card-summary {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.65;
            flex-grow: 1;
        }

        .news-card .card-meta {
            font-size: 0.75rem;
            color: #9CA3AF;
            margin-top: 12px;
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .version-item {
            display: flex;
            gap: 16px;
            padding: 20px;
            border-left: 3px solid var(--primary);
            background-color: #fff;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            border-left-width: 3px;
            transition: all 0.2s;
        }

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

        .version-badge {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
        }

        .notice-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px 20px;
            background-color: #fff;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: all 0.2s;
        }

        .notice-item:hover {
            box-shadow: var(--shadow-card-hover);
        }

        .notice-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.875rem;
        }

        .notice-icon.blue {
            background-color: #EFF4FA;
            color: var(--primary);
        }
        .notice-icon.green {
            background-color: #ECFDF5;
            color: #059669;
        }
        .notice-icon.amber {
            background-color: #FFFBEB;
            color: #D97706;
        }
        .notice-icon.red {
            background-color: #FEF2F2;
            color: #DC2626;
        }

        .activity-card {
            background-color: #F8FAFC;
            border: 1px dashed #D1D5DB;
            border-radius: var(--radius-card);
            padding: 20px;
            transition: all 0.2s;
        }

        .activity-card:hover {
            border-color: var(--primary);
            background-color: #F0F5FB;
        }

        @media (max-width: 1024px) {
            .nav-desktop {
                gap: 14px;
            }
            .nav-item {
                font-size: 0.875rem;
            }
            .nav-search input {
                width: 90px;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-actions .btn {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .hamburger {
                display: block;
            }
            #mobile-menu.show {
                display: block;
            }
            .section {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .news-card .card-title {
                font-size: 0.95rem;
            }
            .version-item {
                flex-direction: column;
                gap: 10px;
            }
        }

        @media (max-width: 520px) {
            .section-title {
                font-size: 1.3rem;
            }
            .btn {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
        }

/* roulang page: category6 */
:root {
      --primary: #3B82F6;
      --primary-hover: #2563EB;
      --primary-soft: #EFF4FA;
      --bg-white: #FFFFFF;
      --text-dark: #1F2937;
      --text-muted: #64748B;
      --border-color: #E5E7EB;
      --radius-card: 12px;
      --radius-sm: 8px;
      --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08);
      --shadow-card-hover: 0 12px 28px rgba(0, 0, 0, 0.12);
      --container-max: 1200px;
      --header-height: 72px;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', system-ui, -apple-system, sans-serif;
      background-color: var(--bg-white);
      color: var(--text-dark);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    img {
      display: block;
      max-width: 100%;
      height: auto;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.2s ease;
    }
    button, input {
      font-family: inherit;
    }
    button:focus-visible, a:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 2px;
    }
    .container {
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    .section {
      padding-top: 56px;
      padding-bottom: 56px;
    }
    .section-alt {
      background-color: #F8FAFC;
    }
    .section-title {
      font-size: 1.875rem;
      font-weight: 700;
      color: var(--text-dark);
      letter-spacing: -0.02em;
      line-height: 1.3;
    }
    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 760px;
    }
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border-radius: 999px;
      padding: 4px 12px;
      font-size: 0.75rem;
      font-weight: 600;
      background-color: var(--primary-soft);
      color: var(--primary);
      letter-spacing: 0.03em;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: var(--radius-sm);
      padding: 10px 20px;
      font-weight: 600;
      font-size: 0.95rem;
      transition: all 0.2s ease;
      cursor: pointer;
      border: none;
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #fff;
      box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
      transform: translateY(-1px);
    }
    .btn-secondary {
      background-color: #fff;
      color: var(--text-dark);
      border: 1px solid var(--border-color);
    }
    .btn-secondary:hover {
      border-color: #94A3B8;
      background-color: #F8FAFC;
    }
    .card {
      background-color: #fff;
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-color);
      transition: all 0.2s ease;
    }
    .card:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-2px);
    }
    .card-img {
      width: 100%;
      aspect-ratio: 16/9;
      object-fit: cover;
      border-radius: var(--radius-card) var(--radius-card) 0 0;
      background-color: #F1F5F9;
    }
    .tag {
      display: inline-flex;
      align-items: center;
      padding: 2px 10px;
      border-radius: 4px;
      font-size: 0.75rem;
      font-weight: 500;
      background-color: #EEF2FF;
      color: #4F46E5;
    }
    .tag-blue {
      background-color: #EFF4FA;
      color: var(--primary);
    }
    .tag-green {
      background-color: #ECFDF5;
      color: #059669;
    }
    .tag-amber {
      background-color: #FFFBEB;
      color: #D97706;
    }
    .tag-gray {
      background-color: #F3F4F6;
      color: #4B5563;
    }
    /* Header / Nav */
    #site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background-color: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      height: var(--header-height);
      display: flex;
      align-items: center;
    }
    #site-header .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: var(--header-height);
      width: 100%;
    }
    .logo-brand {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-dark);
      letter-spacing: -0.02em;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .logo-brand i {
      color: var(--primary);
      font-size: 1.5rem;
    }
    .nav-desktop {
      display: flex;
      align-items: center;
      gap: 22px;
    }
    .nav-item {
      position: relative;
      display: flex;
      align-items: center;
      gap: 4px;
      font-size: 0.95rem;
      font-weight: 500;
      color: #374151;
      padding: 8px 0;
      cursor: pointer;
      transition: color 0.2s;
    }
    .nav-item:hover, .nav-item.active {
      color: var(--primary);
    }
    .nav-item .arrow {
      font-size: 0.7rem;
      color: #9CA3AF;
      transition: transform 0.2s;
    }
    .nav-item:hover .arrow {
      transform: rotate(180deg);
    }
    .dropdown-panel {
      position: absolute;
      top: 100%;
      left: 0;
      min-width: 160px;
      background-color: #fff;
      border: 1px solid var(--border-color);
      border-radius: 10px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
      padding: 8px 0;
      opacity: 0;
      visibility: hidden;
      transform: translateY(8px);
      transition: all 0.2s ease;
    }
    .nav-item:hover .dropdown-panel {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }
    .dropdown-panel a {
      display: block;
      padding: 8px 16px;
      font-size: 0.9rem;
      color: #374151;
    }
    .dropdown-panel a:hover {
      background-color: #F8FAFC;
      color: var(--primary);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .nav-search {
      position: relative;
      display: flex;
      align-items: center;
    }
    .nav-search i {
      position: absolute;
      left: 12px;
      color: #9CA3AF;
      font-size: 0.9rem;
    }
    .nav-search input {
      padding: 8px 12px 8px 36px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 0.9rem;
      background-color: #F9FAFB;
      width: 180px;
    }
    .hamburger {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-dark);
      cursor: pointer;
    }
    /* Mobile nav */
    .mobile-nav {
      display: none;
      position: fixed;
      top: var(--header-height);
      left: 0;
      right: 0;
      background-color: #fff;
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 8px 20px rgba(0,0,0,0.08);
      padding: 16px 24px;
      flex-direction: column;
      gap: 8px;
      z-index: 60;
    }
    .mobile-nav.open {
      display: flex;
    }
    .mobile-nav a, .mobile-nav .nav-item {
      padding: 10px 0;
      font-size: 1rem;
      border-bottom: 1px solid #F1F5F9;
    }
    .mobile-nav .dropdown-panel {
      position: static;
      opacity: 1;
      visibility: visible;
      transform: none;
      box-shadow: none;
      border: none;
      padding-left: 16px;
    }
    /* Breadcrumb */
    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 16px;
    }
    .breadcrumb a:hover { color: var(--primary); }
    .breadcrumb .sep { color: #CBD5E1; }
    /* Hero classification */
    .classification-hero {
      padding-top: 40px;
      padding-bottom: 40px;
    }
    .classification-hero h1 {
      font-size: 2.5rem;
      font-weight: 700;
      letter-spacing: -0.02em;
      color: var(--text-dark);
      margin-bottom: 12px;
    }
    .classification-hero p {
      font-size: 1.1rem;
      color: var(--text-muted);
      max-width: 800px;
    }
    /* Review cards */
    .review-card {
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .review-card .card-body {
      padding: 18px;
      flex: 1;
    }
    .review-card .card-title {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .review-card .excerpt {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .review-card .meta {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 16px;
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    /* Deep review */
    .deep-review-card {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    @media (min-width: 768px) {
      .deep-review-card {
        flex-direction: row;
        align-items: center;
      }
      .deep-review-card .img-wrap {
        flex: 1;
      }
      .deep-review-card .content {
        flex: 1;
      }
    }
    .img-wrap img {
      width: 100%;
      aspect-ratio: 16/10;
      object-fit: cover;
      border-radius: var(--radius-card);
    }
    .table-compare {
      width: 100%;
      border-collapse: collapse;
      background: #fff;
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }
    .table-compare th, .table-compare td {
      padding: 14px 18px;
      text-align: left;
      border-bottom: 1px solid var(--border-color);
    }
    .table-compare th {
      background-color: #F8FAFC;
      font-weight: 600;
      color: var(--text-dark);
    }
    .table-compare tr:last-child td { border-bottom: none; }
    .topic-card {
      padding: 20px;
    }
    .topic-card .topic-title {
      font-weight: 700;
      margin-bottom: 6px;
    }
    .topic-card .topic-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
    }
    /* Footer */
    #site-footer {
      background-color: #111827;
      color: #fff;
      padding: 48px 0 32px;
    }
    #site-footer .footer-brand {
      font-size: 1.2rem;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    #site-footer .footer-brand i { color: var(--primary); }
    #site-footer a { color: #94A3B8; transition: color 0.2s; }
    #site-footer a:hover { color: #fff; }
    #site-footer .footer-links a { color: #94A3B8; }
    #site-footer .footer-links .divider { margin: 0 8px; color: #475569; }
    /* Responsive */
    @media (max-width: 1024px) {
      .nav-desktop { display: none; }
      .hamburger { display: block; }
      .nav-search input { width: 140px; }
    }
    @media (max-width: 768px) {
      .nav-search { display: none; }
      .classification-hero h1 { font-size: 2rem; }
      .section { padding-top: 40px; padding-bottom: 40px; }
      .container { padding-left: 16px; padding-right: 16px; }
    }
    @media (max-width: 520px) {
      .btn { padding: 8px 14px; font-size: 0.85rem; }
      .classification-hero h1 { font-size: 1.6rem; }
    }