/* roulang page: index */
:root {
            --primary-color: #B96420;
            --primary-hover: #A15519;
            --secondary-color: #5C3D2E;
            --dark-bg: #2B1D14;
            --light-bg: #F5EFE6;
            --card-bg: #FFFFFF;
            --text-primary: #2B1D14;
            --text-body: #3A3A3A;
            --text-secondary: #757575;
            --border-color: #E0E0E0;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(43,29,20,0.08);
            --shadow-md: 0 4px 16px rgba(43,29,20,0.14);
            --shadow-hover: 0 4px 12px rgba(185,100,32,0.3);
            --spacing-section: 5rem;
        }
        
        * {
            box-sizing: border-box;
        }
        
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-body);
            background: var(--light-bg);
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.2s ease;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        button, input, textarea {
            font-family: inherit;
        }
        
        .sidebar-nav {
            position: fixed;
            left: 0;
            top: 0;
            width: 220px;
            height: 100vh;
            background: var(--dark-bg);
            color: #FFFFFF;
            overflow-y: auto;
            z-index: 1000;
            display: flex;
            flex-direction: column;
        }
        
        .sidebar-logo {
            height: 80px;
            display: flex;
            align-items: center;
            padding: 0 1.5rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        
        .sidebar-logo-text {
            font-size: 1.1rem;
            font-weight: 600;
            color: #FFFFFF;
        }
        
        .sidebar-menu {
            flex: 1;
            padding: 1rem 0;
        }
        
        .sidebar-menu a {
            display: flex;
            align-items: center;
            height: 48px;
            padding: 0 1.5rem;
            color: rgba(255,255,255,0.85);
            position: relative;
            transition: all 0.2s ease;
        }
        
        .sidebar-menu a:hover {
            background: rgba(255,255,255,0.1);
            color: #FFFFFF;
        }
        
        .sidebar-menu a.active {
            background: rgba(255,255,255,0.15);
            color: #FFFFFF;
        }
        
        .sidebar-menu a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--primary-color);
        }
        
        .sidebar-menu i {
            margin-right: 0.75rem;
            width: 18px;
        }
        
        .sidebar-footer {
            padding: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        
        .sidebar-footer a {
            display: block;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.6);
            margin-bottom: 0.5rem;
        }
        
        .sidebar-footer a:hover {
            color: rgba(255,255,255,1);
        }
        
        .main-content {
            margin-left: 220px;
            min-height: 100vh;
        }
        
        .hero-section {
            min-height: 75vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, var(--light-bg) 0%, #FFFFFF 100%);
            padding: 4rem 0;
            position: relative;
            overflow: hidden;
        }
        
        .hero-content {
            padding-right: 2rem;
        }
        
        .hero-title {
            font-size: 2.5rem;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: 1.5rem;
        }
        
        .hero-subtitle {
            font-size: 1.1rem;
            line-height: 1.6;
            color: var(--text-body);
            margin-bottom: 2rem;
        }
        
        .hero-cta {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        
        .btn-primary-custom {
            background: var(--primary-color);
            color: #FFFFFF;
            padding: 0.75rem 1.5rem;
            border-radius: var(--radius-md);
            border: none;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s ease;
            display: inline-block;
        }
        
        .btn-primary-custom:hover {
            background: var(--primary-hover);
            box-shadow: var(--shadow-hover);
            color: #FFFFFF;
        }
        
        .btn-secondary-custom {
            background: transparent;
            color: var(--secondary-color);
            padding: 0.75rem 1.5rem;
            border-radius: var(--radius-md);
            border: 2px solid var(--secondary-color);
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s ease;
            display: inline-block;
        }
        
        .btn-secondary-custom:hover {
            background: var(--secondary-color);
            color: #FFFFFF;
        }
        
        .hero-visual {
            position: relative;
        }
        
        .hero-map {
            width: 100%;
            height: auto;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            background: #FFFFFF;
            padding: 2rem;
        }
        
        .map-placeholder {
            aspect-ratio: 4/3;
            background: linear-gradient(135deg, #F5EFE6 0%, #E8DED0 100%);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 1rem;
        }
        
        .map-region {
            display: inline-block;
            padding: 0.5rem 1rem;
            background: var(--primary-color);
            color: #FFFFFF;
            border-radius: var(--radius-sm);
            margin: 0.25rem;
            font-size: 0.9rem;
        }
        
        .section {
            padding: var(--spacing-section) 0;
        }
        
        .section-title {
            font-size: 2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 1rem;
            text-align: center;
        }
        
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            text-align: center;
            max-width: 700px;
            margin: 0 auto 3rem;
        }
        
        .timeline {
            position: relative;
            padding-left: 3rem;
        }
        
        .timeline::before {
            content: '';
            position: absolute;
            left: 1rem;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--primary-color);
        }
        
        .timeline-item {
            position: relative;
            margin-bottom: 2.5rem;
        }
        
        .timeline-dot {
            position: absolute;
            left: -2.5rem;
            top: 0.5rem;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--primary-color);
            border: 3px solid var(--light-bg);
            z-index: 1;
        }
        
        .timeline-label {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            background: var(--secondary-color);
            color: #FFFFFF;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            margin-bottom: 0.75rem;
        }
        
        .timeline-card {
            background: var(--card-bg);
            padding: 1.5rem;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }
        
        .timeline-card h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }
        
        .timeline-card p {
            margin: 0;
            color: var(--text-body);
            line-height: 1.6;
        }
        
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }
        
        .feature-card {
            background: var(--card-bg);
            padding: 2rem;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all 0.2s ease;
        }
        
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: #FFFFFF;
            font-size: 1.5rem;
        }
        
        .feature-card h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }
        
        .feature-card p {
            color: var(--text-body);
            margin: 0;
        }
        
        .pricing-section {
            background: #FFFFFF;
        }
        
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            max-width: 1000px;
            margin: 0 auto;
        }
        
        .pricing-card {
            background: var(--card-bg);
            border: 2px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem;
            text-align: center;
            transition: all 0.2s ease;
        }
        
        .pricing-card.featured {
            border-color: var(--primary-color);
            border-width: 3px;
            transform: scale(1.05);
        }
        
        .pricing-card:hover {
            box-shadow: var(--shadow-md);
        }
        
        .pricing-name {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 1.5rem;
        }
        
        .pricing-badge {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            background: var(--primary-color);
            color: #FFFFFF;
            border-radius: 20px;
            font-size: 0.85rem;
            margin-bottom: 1rem;
        }
        
        .pricing-features {
            list-style: none;
            padding: 0;
            margin: 2rem 0;
            text-align: left;
        }
        
        .pricing-features li {
            padding: 0.75rem 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        
        .pricing-features li:last-child {
            border-bottom: none;
        }
        
        .pricing-features i {
            color: var(--primary-color);
            font-size: 1.1rem;
        }
        
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
        }
        
        .news-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            display: flex;
            box-shadow: var(--shadow-sm);
            transition: all 0.2s ease;
        }
        
        .news-card:hover {
            box-shadow: var(--shadow-md);
        }
        
        .news-image {
            width: 35%;
            background: linear-gradient(135deg, #E8DED0, #D4C5B3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary-color);
            font-size: 2rem;
        }
        
        .news-content {
            flex: 1;
            padding: 1.5rem;
        }
        
        .news-title {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
            transition: color 0.2s ease;
        }
        
        .news-card:hover .news-title {
            color: var(--primary-color);
        }
        
        .news-excerpt {
            font-size: 0.95rem;
            color: var(--text-body);
            margin-bottom: 1rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .news-meta {
            display: flex;
            gap: 1rem;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        
        .news-tag {
            padding: 0.25rem 0.5rem;
            background: var(--light-bg);
            color: var(--secondary-color);
            border-radius: var(--radius-sm);
        }
        
        .cta-section {
            background: var(--dark-bg);
            color: #FFFFFF;
            text-align: center;
            padding: 4rem 0;
        }
        
        .cta-title {
            font-size: 2rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        
        .cta-subtitle {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.85);
            margin-bottom: 2rem;
        }
        
        .cta-button {
            display: inline-block;
            padding: 1rem 2.5rem;
            background: var(--primary-color);
            color: #FFFFFF;
            border-radius: var(--radius-md);
            font-size: 1.1rem;
            font-weight: 500;
            transition: all 0.2s ease;
        }
        
        .cta-button:hover {
            background: var(--primary-hover);
            box-shadow: var(--shadow-hover);
            color: #FFFFFF;
            transform: translateY(-2px);
        }
        
        .faq-section {
            background: #FFFFFF;
        }
        
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 1rem;
            overflow: hidden;
        }
        
        .faq-question {
            padding: 1rem 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.2s ease;
        }
        
        .faq-question:hover {
            background: var(--light-bg);
        }
        
        .faq-icon {
            color: var(--primary-color);
            transition: transform 0.2s ease;
        }
        
        .faq-answer {
            padding: 0 1.2rem 1rem;
            color: var(--text-body);
            line-height: 1.6;
            display: none;
        }
        
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        
        .faq-item.active .faq-answer {
            display: block;
        }
        
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            text-align: center;
        }
        
        .stat-item {
            background: var(--card-bg);
            padding: 2rem 1.5rem;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }
        
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        
        .stat-label {
            font-size: 1rem;
            color: var(--text-secondary);
        }
        
        .footer {
            background: var(--dark-bg);
            color: rgba(255,255,255,0.85);
            padding: 3rem 0 1.5rem;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        
        .footer-brand {
            font-size: 1.1rem;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 1rem;
        }
        
        .footer-desc {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
            line-height: 1.6;
        }
        
        .footer-title {
            font-size: 1rem;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 1rem;
        }
        
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .footer-links li {
            margin-bottom: 0.75rem;
        }
        
        .footer-links a {
            color: rgba(255,255,255,0.7);
            transition: color 0.2s ease;
        }
        
        .footer-links a:hover {
            color: var(--primary-color);
        }
        
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }
        
        .mobile-menu-toggle {
            display: none;
            position: fixed;
            top: 1rem;
            left: 1rem;
            z-index: 1001;
            background: var(--dark-bg);
            color: #FFFFFF;
            border: none;
            padding: 0.75rem;
            border-radius: var(--radius-sm);
            font-size: 1.2rem;
            cursor: pointer;
        }
        
        @media (max-width: 1199px) {
            .sidebar-nav {
                width: 60px;
            }
            
            .sidebar-logo-text {
                display: none;
            }
            
            .sidebar-menu span {
                display: none;
            }
            
            .sidebar-footer {
                display: none;
            }
            
            .main-content {
                margin-left: 60px;
            }
        }
        
        @media (max-width: 767px) {
            .sidebar-nav {
                transform: translateX(-100%);
                transition: transform 0.3s ease;
            }
            
            .sidebar-nav.active {
                transform: translateX(0);
            }
            
            .mobile-menu-toggle {
                display: block;
            }
            
            .main-content {
                margin-left: 0;
            }
            
            .hero-section {
                min-height: auto;
                padding: 3rem 0;
            }
            
            .hero-title {
                font-size: 1.8rem;
            }
            
            .hero-subtitle {
                font-size: 1rem;
            }
            
            .hero-content {
                padding-right: 0;
                margin-bottom: 2rem;
            }
            
            .section {
                padding: 3rem 0;
            }
            
            .section-title {
                font-size: 1.5rem;
            }
            
            .timeline {
                padding-left: 2rem;
            }
            
            .timeline::before {
                left: 0.5rem;
            }
            
            .timeline-dot {
                left: -1.5rem;
            }
            
            .news-grid {
                grid-template-columns: 1fr;
            }
            
            .news-card {
                flex-direction: column;
            }
            
            .news-image {
                width: 100%;
                height: 180px;
            }
            
            .pricing-grid {
                grid-template-columns: 1fr;
            }
            
            .pricing-card.featured {
                transform: scale(1);
            }
        }

/* roulang page: category1 */
:root {
            --primary: #B96420;
            --primary-hover: #A15519;
            --secondary: #5C3D2E;
            --dark-bg: #2B1D14;
            --light-bg: #F5EFE6;
            --card-bg: #FFFFFF;
            --text-primary: #2B1D14;
            --text-body: #3A3A3A;
            --text-secondary: #757575;
            --border-color: #E0E0E0;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 10px;
            --shadow-sm: 0 2px 8px rgba(43,29,20,0.08);
            --shadow-md: 0 4px 16px rgba(43,29,20,0.14);
            --shadow-hover: 0 4px 12px rgba(185,100,32,0.3);
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-body);
            background: var(--light-bg);
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.2s ease;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        .layout-wrapper {
            display: flex;
            min-height: 100vh;
        }
        
        .sidebar-nav {
            width: 220px;
            background: var(--dark-bg);
            color: white;
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            display: flex;
            flex-direction: column;
            z-index: 1000;
        }
        
        .sidebar-logo {
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        
        .sidebar-logo-text {
            font-size: 1.1rem;
            font-weight: 600;
            color: white;
        }
        
        .sidebar-menu {
            flex: 1;
            padding: 1.5rem 0;
        }
        
        .sidebar-menu a {
            display: flex;
            align-items: center;
            height: 48px;
            padding: 0 1.5rem;
            color: rgba(255,255,255,0.8);
            position: relative;
            transition: all 0.2s ease;
        }
        
        .sidebar-menu a:hover {
            background: rgba(255,255,255,0.1);
            color: white;
        }
        
        .sidebar-menu a.active {
            background: rgba(255,255,255,0.15);
            color: white;
        }
        
        .sidebar-menu a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--primary);
        }
        
        .sidebar-menu a i {
            width: 20px;
            margin-right: 0.75rem;
        }
        
        .sidebar-footer {
            padding: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        
        .sidebar-footer a {
            display: block;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.6);
            margin-bottom: 0.5rem;
        }
        
        .sidebar-footer a:hover {
            color: white;
        }
        
        .main-content {
            margin-left: 220px;
            flex: 1;
            width: calc(100% - 220px);
        }
        
        .breadcrumb-nav {
            padding: 1.5rem 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        
        .breadcrumb-nav a {
            color: var(--text-secondary);
        }
        
        .breadcrumb-nav a:hover {
            color: var(--primary);
        }
        
        .category-header {
            background: white;
            padding: 4rem 0;
            margin-bottom: 3rem;
        }
        
        .category-header h1 {
            font-size: 2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        
        .category-header-desc {
            font-size: 1rem;
            line-height: 1.6;
            color: var(--text-body);
            max-width: 900px;
        }
        
        .content-section {
            padding: 2rem 0 4rem;
        }
        
        .content-card {
            background: white;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            margin-bottom: 1.5rem;
            overflow: hidden;
            transition: all 0.2s ease;
            display: flex;
            flex-direction: row;
        }
        
        .content-card:hover {
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            transform: translateY(-2px);
        }
        
        .content-card-img {
            width: 35%;
            min-height: 200px;
            background: var(--light-bg);
            position: relative;
            overflow: hidden;
        }
        
        .content-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .content-card-body {
            width: 65%;
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
        }
        
        .content-card-title {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
            line-height: 1.4;
        }
        
        .content-card-title:hover {
            color: var(--primary);
        }
        
        .content-card-desc {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 1rem;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .content-card-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: auto;
        }
        
        .content-card-tag {
            display: inline-block;
            padding: 0.25rem 0.5rem;
            background: var(--light-bg);
            color: var(--secondary);
            border-radius: 4px;
            font-size: 0.85rem;
        }
        
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        
        .feature-card {
            background: white;
            padding: 2rem;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: all 0.2s ease;
        }
        
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        
        .feature-card-icon {
            width: 56px;
            height: 56px;
            background: var(--light-bg);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: var(--primary);
            font-size: 1.5rem;
        }
        
        .feature-card h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }
        
        .feature-card p {
            font-size: 0.95rem;
            line-height: 1.6;
            color: var(--text-body);
        }
        
        .cta-section {
            background: var(--dark-bg);
            padding: 4rem 0;
            margin: 4rem 0 0;
            text-align: center;
            color: white;
        }
        
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.8);
            margin-bottom: 2rem;
        }
        
        .btn-primary {
            display: inline-block;
            padding: 0.75rem 2rem;
            background: var(--primary);
            color: white;
            border-radius: var(--radius-md);
            font-weight: 500;
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        
        .btn-primary:hover {
            background: var(--primary-hover);
            color: white;
            box-shadow: var(--shadow-hover);
        }
        
        .btn-secondary {
            display: inline-block;
            padding: 0.75rem 2rem;
            background: transparent;
            color: var(--secondary);
            border: 2px solid var(--secondary);
            border-radius: var(--radius-md);
            font-weight: 500;
            transition: all 0.2s ease;
        }
        
        .btn-secondary:hover {
            background: var(--secondary);
            color: white;
        }
        
        .section-title {
            font-size: 2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 3rem;
        }
        
        .footer {
            background: var(--dark-bg);
            color: white;
            padding: 3rem 0 1.5rem;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        
        .footer-brand {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        
        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.6;
            color: rgba(255,255,255,0.7);
        }
        
        .footer-title {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 0.75rem;
        }
        
        .footer-links a {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
            transition: all 0.2s ease;
        }
        
        .footer-links a:hover {
            color: white;
        }
        
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 1.5rem;
            text-align: center;
        }
        
        .footer-bottom p {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }
        
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        
        .stat-card {
            text-align: center;
            padding: 2rem 1rem;
            background: white;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }
        
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.5rem;
        }
        
        .stat-label {
            font-size: 1rem;
            color: var(--text-secondary);
        }
        
        @media (max-width: 1199px) {
            .sidebar-nav {
                width: 60px;
            }
            
            .sidebar-menu a span {
                display: none;
            }
            
            .sidebar-logo-text {
                font-size: 1.5rem;
                text-align: center;
            }
            
            .sidebar-footer {
                display: none;
            }
            
            .main-content {
                margin-left: 60px;
                width: calc(100% - 60px);
            }
        }
        
        @media (max-width: 768px) {
            .sidebar-nav {
                width: 100%;
                height: 56px;
                flex-direction: row;
                bottom: auto;
            }
            
            .sidebar-logo {
                height: 56px;
                border-bottom: none;
                flex: 1;
                justify-content: flex-start;
                padding-left: 1rem;
            }
            
            .sidebar-logo-text {
                font-size: 1rem;
            }
            
            .sidebar-menu {
                display: none;
            }
            
            .main-content {
                margin-left: 0;
                margin-top: 56px;
                width: 100%;
            }
            
            .category-header {
                padding: 2rem 0;
                margin-bottom: 2rem;
            }
            
            .category-header h1 {
                font-size: 1.5rem;
            }
            
            .content-card {
                flex-direction: column;
            }
            
            .content-card-img {
                width: 100%;
                min-height: 180px;
            }
            
            .content-card-body {
                width: 100%;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            
            .feature-grid {
                grid-template-columns: 1fr;
            }
            
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #B96420;
            --color-primary-dark: #A15519;
            --color-secondary: #5C3D2E;
            --color-bg-page: #F5EFE6;
            --color-bg-card: #FFFFFF;
            --color-bg-dark: #2B1D14;
            --color-text-primary: #2B1D14;
            --color-text-body: #3A3A3A;
            --color-text-secondary: #757575;
            --color-text-light: rgba(255,255,255,0.7);
            --color-border: #E0E0E0;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 10px;
            --shadow-card: 0 2px 8px rgba(43,29,20,0.08);
            --shadow-card-hover: 0 4px 16px rgba(43,29,20,0.14);
            --spacing-section: 5rem;
            --spacing-section-mobile: 3rem;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: var(--color-text-body);
            background: var(--color-bg-page);
            overflow-x: hidden;
        }

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

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

        button, input {
            font-family: inherit;
            border: none;
            outline: none;
        }

        .layout-wrapper {
            display: flex;
            min-height: 100vh;
        }

        .sidebar-nav {
            position: fixed;
            left: 0;
            top: 0;
            width: 220px;
            height: 100vh;
            background: var(--color-bg-dark);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            overflow-y: auto;
        }

        .sidebar-logo {
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }

        .sidebar-logo-text {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-bg-card);
            letter-spacing: 0.5px;
        }

        .sidebar-menu {
            flex: 1;
            padding: 1.5rem 0;
        }

        .sidebar-menu a {
            display: flex;
            align-items: center;
            height: 48px;
            padding: 0 1.5rem;
            color: var(--color-text-light);
            position: relative;
            transition: all 0.2s ease;
        }

        .sidebar-menu a:hover {
            background: rgba(255,255,255,0.1);
            color: var(--color-bg-card);
        }

        .sidebar-menu a.active {
            background: rgba(255,255,255,0.15);
            color: var(--color-bg-card);
        }

        .sidebar-menu a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 4px;
            height: 100%;
            background: var(--color-primary);
        }

        .sidebar-menu a i {
            width: 20px;
            margin-right: 0.75rem;
            font-size: 1rem;
        }

        .sidebar-footer {
            padding: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .sidebar-footer a {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.6);
            transition: color 0.2s ease;
        }

        .sidebar-footer a:hover {
            color: rgba(255,255,255,1);
        }

        .main-content {
            margin-left: 220px;
            flex: 1;
            width: calc(100% - 220px);
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--color-bg-dark);
            z-index: 1001;
            align-items: center;
            padding: 0 1rem;
        }

        .mobile-toggle {
            color: var(--color-bg-card);
            font-size: 1.5rem;
            cursor: pointer;
            background: none;
            border: none;
        }

        .mobile-logo {
            flex: 1;
            text-align: center;
            color: var(--color-bg-card);
            font-weight: 600;
            font-size: 1rem;
        }

        .breadcrumb-nav {
            padding: 1.5rem 0;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
        }

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

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

        .category-header {
            background: var(--color-bg-card);
            padding: 3.5rem 0;
            margin-bottom: 3rem;
        }

        .category-header h1 {
            font-size: 2rem;
            font-weight: 600;
            color: var(--color-text-primary);
            margin-bottom: 1rem;
            line-height: 1.3;
        }

        .category-header-desc {
            font-size: 1rem;
            line-height: 1.7;
            color: var(--color-text-body);
            max-width: 900px;
        }

        .section {
            padding: var(--spacing-section) 0;
        }

        .section-title {
            font-size: 1.8rem;
            font-weight: 600;
            color: var(--color-text-primary);
            margin-bottom: 1rem;
            text-align: center;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-secondary);
            text-align: center;
            margin-bottom: 3rem;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            max-width: 1100px;
            margin: 0 auto;
        }

        .pricing-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 2rem;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            border: 2px solid transparent;
            position: relative;
        }

        .pricing-card.featured {
            border-color: var(--color-primary);
            transform: scale(1.05);
            box-shadow: var(--shadow-card-hover);
        }

        .pricing-card.featured::before {
            content: '推荐方案';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-primary);
            color: var(--color-bg-card);
            padding: 0.25rem 1rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
        }

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

        .pricing-name {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--color-text-primary);
            margin-bottom: 0.5rem;
            text-align: center;
        }

        .pricing-desc {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            text-align: center;
            margin-bottom: 1.5rem;
            min-height: 40px;
        }

        .pricing-features {
            list-style: none;
            margin-bottom: 2rem;
        }

        .pricing-features li {
            padding: 0.75rem 0;
            display: flex;
            align-items: flex-start;
            font-size: 0.95rem;
            color: var(--color-text-body);
            border-bottom: 1px solid #F0F0F0;
        }

        .pricing-features li:last-child {
            border-bottom: none;
        }

        .pricing-features i {
            color: var(--color-primary);
            margin-right: 0.75rem;
            margin-top: 0.25rem;
            font-size: 0.9rem;
        }

        .pricing-btn {
            width: 100%;
            padding: 0.85rem 1.5rem;
            background: var(--color-bg-card);
            border: 2px solid var(--color-secondary);
            color: var(--color-secondary);
            border-radius: var(--radius-md);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .pricing-btn:hover {
            background: var(--color-secondary);
            color: var(--color-bg-card);
        }

        .pricing-card.featured .pricing-btn {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: var(--color-bg-card);
        }

        .pricing-card.featured .pricing-btn:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
        }

        .timeline-section {
            background: var(--color-bg-card);
            padding: var(--spacing-section) 0;
        }

        .timeline-container {
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            padding-left: 3rem;
        }

        .timeline-container::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--color-primary);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 3rem;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -3.5rem;
            top: 0.5rem;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--color-primary);
            border: 3px solid var(--color-bg-card);
            box-shadow: 0 0 0 3px var(--color-primary);
        }

        .timeline-label {
            display: inline-block;
            background: var(--color-primary);
            color: var(--color-bg-card);
            padding: 0.35rem 0.85rem;
            border-radius: 4px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
        }

        .timeline-card {
            background: #FAFAFA;
            padding: 1.5rem;
            border-radius: var(--radius-md);
            border-left: 3px solid var(--color-primary);
        }

        .timeline-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--color-text-primary);
            margin-bottom: 0.75rem;
        }

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

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-top: 3rem;
        }

        .feature-card {
            background: var(--color-bg-card);
            padding: 2rem 1.5rem;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: all 0.3s ease;
        }

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

        .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 1.25rem;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-bg-card);
            font-size: 1.75rem;
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--color-text-primary);
            margin-bottom: 0.75rem;
        }

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

        .stats-section {
            background: var(--color-bg-dark);
            padding: 4rem 0;
            margin: var(--spacing-section) 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
        }

        .stat-item {
            text-align: center;
            color: var(--color-bg-card);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 0.5rem;
        }

        .stat-label {
            font-size: 1rem;
            color: var(--color-text-light);
        }

        .faq-section {
            background: var(--color-bg-card);
            padding: var(--spacing-section) 0;
        }

        .faq-container {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-bg-page);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
        }

        .faq-question {
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: var(--color-text-primary);
            transition: all 0.2s ease;
        }

        .faq-question:hover {
            background: rgba(185,100,32,0.05);
        }

        .faq-icon {
            color: var(--color-primary);
            font-size: 1.25rem;
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-answer-inner {
            padding: 0 1.5rem 1.25rem;
            color: var(--color-text-body);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        .cta-section {
            background: var(--color-bg-dark);
            padding: 5rem 0;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 600;
            color: var(--color-bg-card);
            margin-bottom: 1rem;
        }

        .cta-section p {
            font-size: 1.1rem;
            color: var(--color-text-light);
            margin-bottom: 2rem;
        }

        .cta-btn {
            display: inline-block;
            padding: 0.9rem 2.5rem;
            background: var(--color-primary);
            color: var(--color-bg-card);
            border-radius: var(--radius-md);
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .cta-btn:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 4px 12px rgba(185,100,32,0.3);
            transform: translateY(-2px);
        }

        .footer {
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            padding: 3rem 0 1.5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 3rem;
            margin-bottom: 2.5rem;
        }

        .footer-brand {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--color-bg-card);
            margin-bottom: 1rem;
        }

        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.6;
            color: var(--color-text-light);
        }

        .footer-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-bg-card);
            margin-bottom: 1rem;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 0.75rem;
        }

        .footer-links a {
            color: var(--color-text-light);
            font-size: 0.9rem;
            transition: color 0.2s ease;
        }

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

        .footer-bottom {
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }

        @media (max-width: 1199px) {
            .sidebar-nav {
                width: 60px;
            }

            .sidebar-logo-text {
                font-size: 0;
            }

            .sidebar-logo::after {
                content: '导航';
                font-size: 0.9rem;
            }

            .sidebar-menu a span {
                display: none;
            }

            .sidebar-menu a {
                justify-content: center;
            }

            .sidebar-footer {
                display: none;
            }

            .main-content {
                margin-left: 60px;
                width: calc(100% - 60px);
            }

            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .pricing-card.featured {
                transform: scale(1);
            }

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

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

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 2rem;
            }
        }

        @media (max-width: 767px) {
            .sidebar-nav {
                transform: translateX(-100%);
                transition: transform 0.3s ease;
            }

            .sidebar-nav.active {
                transform: translateX(0);
            }

            .mobile-header {
                display: flex;
            }

            .main-content {
                margin-left: 0;
                margin-top: 56px;
                width: 100%;
            }

            .category-header {
                padding: 2.5rem 0;
                margin-bottom: 2rem;
            }

            .category-header h1 {
                font-size: 1.5rem;
            }

            .section {
                padding: var(--spacing-section-mobile) 0;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .timeline-container {
                padding-left: 2.5rem;
            }

            .timeline-item::before {
                left: -3rem;
            }

            .features-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .stat-number {
                font-size: 2rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

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

            .cta-section p {
                font-size: 1rem;
            }
        }