/* roulang page: index */
:root {
            --primary: #1a1a3e;
            --primary-light: #2d2d5e;
            --accent: #d4a853;
            --accent-light: #e8c97a;
            --accent-glow: #f0d68a;
            --bg-main: #f8f9fb;
            --bg-white: #ffffff;
            --bg-dark: #0d0d24;
            --text-primary: #1a1a2e;
            --text-secondary: #5a5a7a;
            --text-muted: #8888a8;
            --text-light: #c0c0d8;
            --border-color: #e8e8f0;
            --border-light: #f0f0f6;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.16);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --sidebar-width: 250px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
        }

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

        body {
            font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            background-color: var(--bg-main);
            color: var(--text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* ========== 左侧侧边栏 - 桌面端 ========== */
        .app-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: linear-gradient(180deg, #0f0f28 0%, #1a1a3e 40%, #151530 100%);
            z-index: 1040;
            display: flex;
            flex-direction: column;
            box-shadow: 4px 0 24px rgba(0,0,0,0.3);
            transition: transform var(--transition-normal);
            border-right: 1px solid rgba(255,255,255,0.06);
        }
        .sidebar-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .sidebar-brand .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.5px;
            transition: all var(--transition-fast);
        }
        .sidebar-brand .logo-link:hover {
            color: var(--accent-light);
            text-decoration: none;
        }
        .sidebar-brand .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent) 0%, #b8923a 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: #1a1a3e;
            flex-shrink: 0;
        }
        .sidebar-nav {
            flex: 1;
            padding: 16px 14px;
            display: flex;
            flex-direction: column;
            gap: 4px;
            overflow-y: auto;
        }
        .sidebar-nav .nav-item {
            list-style: none;
        }
        .sidebar-nav .nav-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius-md);
            color: #c0c0d8;
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.3px;
        }
        .sidebar-nav .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 0.95rem;
            flex-shrink: 0;
        }
        .sidebar-nav .nav-link:hover {
            background: rgba(255,255,255,0.06);
            color: #ffffff;
            text-decoration: none;
        }
        .sidebar-nav .nav-link.active {
            background: rgba(212,168,83,0.15);
            color: var(--accent-light);
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--accent);
        }
        .sidebar-nav .nav-link .nav-badge {
            margin-left: auto;
            font-size: 0.7rem;
            padding: 3px 8px;
            border-radius: 20px;
            background: var(--accent);
            color: #1a1a3e;
            font-weight: 700;
        }
        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255,255,255,0.08);
        }
        .sidebar-footer .footer-info {
            font-size: 0.75rem;
            color: #8888a8;
            text-align: center;
        }

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

        /* ========== 移动端顶部导航 ========== */
        .mobile-navbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1030;
            background: linear-gradient(135deg, #0f0f28 0%, #1a1a3e 100%);
            padding: 10px 16px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            box-shadow: 0 2px 12px rgba(0,0,0,0.2);
        }
        .mobile-navbar .mobile-brand {
            font-weight: 700;
            color: #fff;
            font-size: 1.1rem;
            letter-spacing: 0.5px;
        }
        .mobile-navbar .navbar-toggler {
            border: 1px solid rgba(255,255,255,0.25);
            color: #fff;
            padding: 6px 10px;
            border-radius: 8px;
            background: transparent;
        }
        .mobile-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(212,168,83,0.3);
            outline: none;
        }
        .mobile-navbar .navbar-toggler .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Offcanvas 移动端抽屉 */
        .offcanvas-mobile {
            background: linear-gradient(180deg, #0f0f28 0%, #1a1a3e 60%, #151530 100%);
            color: #fff;
        }
        .offcanvas-mobile .offcanvas-header {
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .offcanvas-mobile .btn-close {
            filter: invert(1) brightness(2);
        }
        .offcanvas-mobile .mobile-nav-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .offcanvas-mobile .mobile-nav-list .nav-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 13px 20px;
            color: #c0c0d8;
            font-size: 1rem;
            font-weight: 500;
            border-bottom: 1px solid rgba(255,255,255,0.04);
            transition: all var(--transition-fast);
        }
        .offcanvas-mobile .mobile-nav-list .nav-link:hover {
            background: rgba(255,255,255,0.05);
            color: #fff;
        }
        .offcanvas-mobile .mobile-nav-list .nav-link.active {
            background: rgba(212,168,83,0.12);
            color: var(--accent-light);
            font-weight: 600;
        }

        /* ========== 板块通用样式 ========== */
        .section-block {
            padding: 60px 0;
        }
        .section-block.section-dark {
            background: var(--bg-dark);
            color: #e0e0f0;
        }
        .section-block.section-light {
            background: var(--bg-white);
        }
        .section-block.section-accent-bg {
            background: linear-gradient(135deg, #fdf6e8 0%, #fef9f0 50%, #fdf3e0 100%);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--accent);
            background: rgba(212,168,83,0.1);
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .section-title {
            font-weight: 700;
            font-size: 2rem;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .section-dark .section-title {
            color: #ffffff;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 620px;
            margin: 0 auto 32px;
        }
        .section-dark .section-subtitle {
            color: #b0b0cc;
        }

        /* ========== Hero 板块 ========== */
        .hero-section {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: var(--bg-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.55;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: linear-gradient(135deg, rgba(13,13,36,0.85) 0%, rgba(26,26,62,0.7) 40%, rgba(13,13,36,0.8) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 48px 0;
        }
        .hero-content h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: 1px;
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .hero-content h1 .highlight {
            color: var(--accent-glow);
        }
        .hero-content .hero-desc {
            font-size: 1.1rem;
            color: #d0d0e8;
            max-width: 560px;
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .btn-accent {
            background: linear-gradient(135deg, var(--accent) 0%, #c49a3c 100%);
            color: #1a1a3e;
            border: none;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.5px;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(212,168,83,0.3);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-accent:hover {
            background: linear-gradient(135deg, #e0b860 0%, #d4a853 100%);
            color: #1a1a3e;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(212,168,83,0.45);
            text-decoration: none;
        }
        .btn-outline-light-custom {
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255,255,255,0.35);
            padding: 11px 26px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.5px;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline-light-custom:hover {
            background: rgba(255,255,255,0.1);
            border-color: #ffffff;
            color: #ffffff;
            transform: translateY(-2px);
            text-decoration: none;
        }
        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-top: 32px;
        }
        .hero-stat-item {
            text-align: center;
        }
        .hero-stat-item .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-glow);
            letter-spacing: 1px;
        }
        .hero-stat-item .stat-label {
            font-size: 0.8rem;
            color: #b0b0cc;
            margin-top: 2px;
        }

        /* ========== 卡片通用 ========== */
        .card-custom {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .card-custom .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .card-custom .card-icon.icon-blue {
            background: #eef2ff;
            color: #4f5de4;
        }
        .card-custom .card-icon.icon-gold {
            background: #fef9ee;
            color: #d4a853;
        }
        .card-custom .card-icon.icon-teal {
            background: #eafaf7;
            color: #0d9488;
        }
        .card-custom .card-icon.icon-purple {
            background: #f5f0ff;
            color: #7c3aed;
        }
        .card-custom h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .card-custom p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
            flex: 1;
        }

        /* ========== 图片卡片 ========== */
        .card-image {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            height: 100%;
        }
        .card-image:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .card-image .card-img-wrap {
            height: 200px;
            overflow: hidden;
        }
        .card-image .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .card-image:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .card-image .card-body-custom {
            padding: 20px 18px;
        }
        .card-image h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .card-image p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.5;
        }
        .card-image .card-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 12px;
            background: rgba(212,168,83,0.12);
            color: #b8923a;
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }

        /* ========== CMS 列表 ========== */
        .cms-list-item {
            display: flex;
            gap: 20px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            align-items: center;
            transition: all var(--transition-fast);
        }
        .cms-list-item:last-child {
            border-bottom: none;
        }
        .cms-list-item:hover {
            background: rgba(212,168,83,0.03);
            margin: 0 -12px;
            padding-left: 12px;
            padding-right: 12px;
            border-radius: var(--radius-md);
        }
        .cms-list-thumb {
            width: 100px;
            height: 75px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
        }
        .cms-list-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .cms-list-info {
            flex: 1;
            min-width: 0;
        }
        .cms-list-info .cms-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }
        .cms-list-item:hover .cms-title {
            color: #b8923a;
        }
        .cms-list-info .cms-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .cms-list-info .cms-excerpt {
            font-size: 0.82rem;
            color: var(--text-secondary);
            margin-top: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ========== 统计数字板块 ========== */
        .stats-row {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 24px;
            text-align: center;
        }
        .stat-card {
            background: var(--bg-white);
            padding: 28px 32px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            min-width: 160px;
            flex: 1 1 180px;
            max-width: 220px;
            transition: all var(--transition-fast);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .stat-card .stat-icon-circle {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            margin: 0 auto 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
        }
        .stat-card .stat-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 1px;
        }
        .stat-card .stat-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* ========== 流程步骤 ========== */
        .steps-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
        }
        .step-card {
            flex: 1 1 220px;
            max-width: 280px;
            text-align: center;
            padding: 24px 20px;
            border-radius: var(--radius-lg);
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            position: relative;
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent) 0%, #c49a3c 100%);
            color: #1a1a3e;
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
        }
        .step-card h4 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .step-card p {
            font-size: 0.82rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ========== FAQ ========== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 10px;
            background: var(--bg-white);
            overflow: hidden;
        }
        .faq-accordion .accordion-button {
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--text-primary);
            background: transparent;
            box-shadow: none !important;
            padding: 16px 20px;
            transition: all var(--transition-fast);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: #b8923a;
            background: rgba(212,168,83,0.04);
        }
        .faq-accordion .accordion-button:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(212,168,83,0.15) !important;
        }
        .faq-accordion .accordion-body {
            font-size: 0.9rem;
            color: var(--text-secondary);
            padding: 8px 20px 20px;
            line-height: 1.7;
        }

        /* ========== CTA 板块 ========== */
        .cta-section {
            background: linear-gradient(135deg, #1a1a3e 0%, #0f0f28 50%, #1a1a3e 100%);
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(212,168,83,0.08);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(212,168,83,0.06);
            pointer-events: none;
        }
        .cta-section h2 {
            font-weight: 800;
            font-size: 1.8rem;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 1rem;
            color: #c0c0d8;
            max-width: 500px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 1;
        }
        .cta-section .btn-accent {
            position: relative;
            z-index: 1;
            font-size: 1rem;
            padding: 14px 36px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0d0d24;
            color: #b0b0cc;
            padding: 40px 0 24px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .site-footer .footer-brand {
            font-weight: 700;
            font-size: 1.15rem;
            color: #ffffff;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }
        .site-footer .footer-links a {
            color: #b0b0cc;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }
        .site-footer .footer-links a:hover {
            color: var(--accent-light);
        }
        .site-footer .footer-divider {
            border-color: rgba(255,255,255,0.08);
            margin: 20px 0;
        }
        .site-footer .footer-copy {
            font-size: 0.8rem;
            color: #8888a8;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991.98px) {
            .app-sidebar {
                display: none;
            }
            .mobile-navbar {
                display: flex;
                align-items: center;
                justify-content: space-between;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: 58px;
            }
            .hero-content h1 {
                font-size: 1.9rem;
            }
            .hero-content .hero-desc {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .hero-stats-row {
                gap: 16px;
            }
            .hero-stat-item .stat-number {
                font-size: 1.5rem;
            }
            .stats-row {
                gap: 12px;
            }
            .stat-card {
                min-width: 130px;
                max-width: 160px;
                padding: 20px 16px;
            }
            .stat-card .stat-value {
                font-size: 1.6rem;
            }
            .cms-list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .cms-list-thumb {
                width: 100%;
                height: 160px;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 575.98px) {
            .hero-content h1 {
                font-size: 1.5rem;
            }
            .hero-buttons {
                flex-direction: column;
            }
            .hero-buttons .btn-accent,
            .hero-buttons .btn-outline-light-custom {
                width: 100%;
                justify-content: center;
            }
            .hero-stats-row {
                gap: 10px;
                justify-content: center;
            }
            .hero-stat-item .stat-number {
                font-size: 1.3rem;
            }
            .stats-row {
                flex-direction: column;
                align-items: center;
            }
            .stat-card {
                max-width: 100%;
                width: 100%;
            }
            .steps-row {
                flex-direction: column;
                align-items: center;
            }
            .step-card {
                max-width: 100%;
                width: 100%;
            }
            .section-block {
                padding: 36px 0;
            }
            .card-custom {
                padding: 20px 16px;
            }
        }

/* roulang page: article */
:root {
            --bg-deep: #08081c;
            --bg-primary: #0d0d2b;
            --bg-surface: #141438;
            --bg-card: #181845;
            --bg-card-hover: #1e1e52;
            --bg-input: #1a1a42;
            --text-primary: #e8e8f0;
            --text-secondary: #b0b0c8;
            --text-muted: #7a7a9e;
            --text-on-dark: #f0f0f8;
            --accent: #f5b642;
            --accent-glow: #f7c964;
            --accent-soft: rgba(245, 182, 66, 0.15);
            --purple: #7c6ff7;
            --purple-soft: rgba(124, 111, 247, 0.2);
            --blue-accent: #5b9cf5;
            --blue-soft: rgba(91, 156, 245, 0.15);
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-card: rgba(255, 255, 255, 0.1);
            --border-active: rgba(245, 182, 66, 0.4);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 26px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 8px 28px rgba(0,0,0,0.4);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
            --shadow-glow: 0 0 40px rgba(124,111,247,0.25);
            --sidebar-width: 260px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-body);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-deep);
            background-image:
                radial-gradient(ellipse at 30% 15%, rgba(124,111,247,0.06) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 60%, rgba(91,156,245,0.05) 0%, transparent 55%),
                radial-gradient(ellipse at 20% 80%, rgba(245,182,66,0.04) 0%, transparent 50%);
            background-attachment: fixed;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: var(--blue-accent);
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Sidebar */
        .sidebar-desktop {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-primary);
            border-right: 1px solid var(--border-subtle);
            z-index: 1040;
            display: flex;
            flex-direction: column;
            padding: 28px 20px 20px;
            overflow-y: auto;
            box-shadow: var(--shadow-md);
            transition: transform var(--transition-base);
        }
        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 32px;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .sidebar-brand i {
            font-size: 1.4rem;
            color: var(--accent);
            filter: drop-shadow(0 0 6px rgba(245,182,66,0.5));
        }
        .sidebar-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
        }
        .sidebar-nav li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            position: relative;
        }
        .sidebar-nav li a i {
            width: 20px;
            text-align: center;
            font-size: 0.9rem;
            opacity: 0.7;
            transition: opacity var(--transition-fast);
        }
        .sidebar-nav li a:hover {
            background: var(--bg-card);
            color: var(--text-primary);
        }
        .sidebar-nav li a:hover i {
            opacity: 1;
            color: var(--accent);
        }
        .sidebar-nav li a.active {
            background: var(--accent-soft);
            color: var(--accent);
            font-weight: 600;
        }
        .sidebar-nav li a.active i {
            opacity: 1;
            color: var(--accent);
        }
        .sidebar-nav li a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--accent);
            border-radius: 0 3px 3px 0;
        }
        .sidebar-cta {
            margin-top: auto;
            padding: 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            text-align: center;
            border: 1px solid var(--border-card);
        }
        .sidebar-cta p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0 0 10px;
        }
        .sidebar-cta .btn-cta-sm {
            display: inline-block;
            padding: 8px 18px;
            background: var(--accent);
            color: #1a1a2e;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition-fast);
            border: none;
        }
        .sidebar-cta .btn-cta-sm:hover {
            background: var(--accent-glow);
            box-shadow: 0 4px 16px rgba(245,182,66,0.35);
            color: #1a1a2e;
            transform: translateY(-1px);
        }

        /* Main area */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* Mobile navbar */
        .mobile-navbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1030;
            background: var(--bg-primary);
            border-bottom: 1px solid var(--border-subtle);
            padding: 12px 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow-sm);
            height: 56px;
        }
        .mobile-brand {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-on-dark);
            display: flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .mobile-brand i {
            color: var(--accent);
        }
        .mobile-navbar .navbar-toggler {
            border: 1px solid var(--border-card);
            background: var(--bg-card);
            color: var(--text-primary);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            transition: all var(--transition-fast);
        }
        .mobile-navbar .navbar-toggler:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-active);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(232,232,240,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
            display: inline-block;
            width: 1.5em;
            height: 1.5em;
            vertical-align: middle;
        }

        /* Offcanvas */
        .offcanvas {
            background: var(--bg-primary);
            border-left: 1px solid var(--border-subtle);
        }
        .offcanvas-header {
            border-bottom: 1px solid var(--border-subtle);
            padding: 16px 20px;
        }
        .offcanvas-title {
            color: var(--text-on-dark);
            font-weight: 700;
            font-size: 1.15rem;
        }
        .offcanvas-title i {
            color: var(--accent);
            margin-right: 6px;
        }
        .btn-close {
            filter: invert(0.8) brightness(1.4);
            opacity: 0.7;
        }
        .btn-close:hover {
            opacity: 1;
        }
        .offcanvas-body {
            padding: 16px 20px;
        }
        .offcanvas-body .mobile-nav-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .offcanvas-body .mobile-nav-list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 13px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 1rem;
            transition: all var(--transition-fast);
        }
        .offcanvas-body .mobile-nav-list li a:hover {
            background: var(--bg-card);
            color: var(--text-primary);
        }
        .offcanvas-body .mobile-nav-list li a.active {
            background: var(--accent-soft);
            color: var(--accent);
            font-weight: 600;
        }
        .offcanvas-body .mobile-nav-list li a i {
            width: 20px;
            text-align: center;
        }

        /* Article content area */
        .article-page-content {
            flex: 1;
            padding: 36px 28px 20px;
        }
        .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            align-items: center;
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .breadcrumb-custom li {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb-custom li a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb-custom li a:hover {
            color: var(--accent);
        }
        .breadcrumb-custom .separator {
            color: var(--text-muted);
            opacity: 0.5;
        }
        .breadcrumb-custom .current {
            color: var(--accent);
            font-weight: 500;
        }

        .article-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            box-shadow: var(--shadow-md);
            margin-bottom: 32px;
        }
        .article-card h1 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-on-dark);
            line-height: 1.35;
            margin: 0 0 16px;
            letter-spacing: 0.3px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            margin-bottom: 20px;
            font-size: 0.88rem;
            color: var(--text-muted);
        }
        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .article-meta .meta-item i {
            font-size: 0.8rem;
            color: var(--accent);
            opacity: 0.7;
        }
        .article-meta .badge-category {
            display: inline-block;
            padding: 4px 12px;
            background: var(--purple-soft);
            color: var(--purple);
            border-radius: 16px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        .article-featured-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 28px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-subtle);
        }
        .article-featured-image img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            max-height: 480px;
        }
        .article-body {
            font-size: 1.06rem;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .article-body h2 {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--text-on-dark);
            margin: 32px 0 14px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--border-subtle);
            letter-spacing: 0.2px;
        }
        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-on-dark);
            margin: 24px 0 10px;
        }
        .article-body p {
            margin: 0 0 16px;
        }
        .article-body ul,
        .article-body ol {
            margin: 0 0 18px 20px;
            padding: 0;
        }
        .article-body ul li,
        .article-body ol li {
            margin-bottom: 8px;
            padding-left: 4px;
        }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            margin: 20px 0;
            padding: 14px 20px;
            background: var(--bg-card);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 20px 0;
            box-shadow: var(--shadow-sm);
            max-width: 100%;
            height: auto;
        }
        .article-body code {
            background: var(--bg-input);
            padding: 2px 7px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--accent);
        }
        .article-body pre {
            background: var(--bg-card);
            padding: 16px 20px;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            border: 1px solid var(--border-subtle);
            margin: 18px 0;
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .article-footer-cta {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            margin-top: 28px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            justify-content: space-between;
        }
        .article-footer-cta .cta-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin: 0;
        }
        .article-footer-cta .cta-text strong {
            color: var(--accent);
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 22px;
            background: var(--accent);
            color: #1a1a2e;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.92rem;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-accent:hover {
            background: var(--accent-glow);
            box-shadow: 0 6px 22px rgba(245,182,66,0.4);
            color: #1a1a2e;
            transform: translateY(-2px);
        }
        .btn-outline-accent {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 22px;
            background: transparent;
            color: var(--accent);
            border: 2px solid var(--accent);
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.92rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-outline-accent:hover {
            background: var(--accent-soft);
            border-color: var(--accent-glow);
            color: var(--accent-glow);
            box-shadow: 0 4px 18px rgba(245,182,66,0.25);
        }

        /* Related posts */
        .related-section {
            margin-top: 20px;
            margin-bottom: 12px;
        }
        .related-section h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 16px;
        }
        .related-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            border-color: var(--border-active);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            background: var(--bg-card);
        }
        .related-card img {
            width: 100%;
            height: 150px;
            object-fit: cover;
            display: block;
        }
        .related-card .related-card-body {
            padding: 14px 16px;
        }
        .related-card .related-card-body h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-on-dark);
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .related-card .related-card-body p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }
        .related-card a {
            color: inherit;
            display: block;
        }
        .related-card a:hover h4 {
            color: var(--accent);
        }

        /* Not found state */
        .not-found-state {
            text-align: center;
            padding: 60px 20px;
        }
        .not-found-state .icon-wrap {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .not-found-state h2 {
            font-size: 1.6rem;
            color: var(--text-on-dark);
            margin-bottom: 8px;
            font-weight: 700;
        }
        .not-found-state p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 0.95rem;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-subtle);
            padding: 32px 20px 20px;
            color: var(--text-muted);
            font-size: 0.88rem;
        }
        .site-footer .container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0;
        }
        .footer-brand {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-on-dark);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-links li a {
            color: var(--text-muted);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-links li a:hover {
            color: var(--accent);
        }
        .footer-copy {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
        }
        .footer-divider {
            border-color: var(--border-subtle);
            margin: 16px 0;
            opacity: 0.5;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .sidebar-desktop {
                display: none;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: 56px;
            }
            .mobile-navbar {
                display: flex;
            }
            .article-page-content {
                padding: 20px 16px 10px;
            }
            .article-card {
                padding: 24px 18px;
            }
            .article-card h1 {
                font-size: 1.5rem;
            }
            .article-body {
                font-size: 0.98rem;
                line-height: 1.75;
            }
            .article-body h2 {
                font-size: 1.25rem;
            }
            .article-body h3 {
                font-size: 1.08rem;
            }
            .related-grid {
                grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
                gap: 12px;
            }
            .related-card img {
                height: 120px;
            }
        }
        @media (max-width: 768px) {
            .article-card {
                padding: 18px 14px;
                border-radius: var(--radius-md);
            }
            .article-card h1 {
                font-size: 1.3rem;
            }
            .article-meta {
                gap: 8px;
                font-size: 0.78rem;
            }
            .article-featured-image img {
                max-height: 260px;
            }
            .article-body {
                font-size: 0.93rem;
                line-height: 1.7;
            }
            .article-body h2 {
                font-size: 1.15rem;
                margin: 22px 0 10px;
            }
            .article-footer-cta {
                flex-direction: column;
                text-align: center;
                padding: 18px 16px;
            }
            .related-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .related-card img {
                height: 100px;
            }
            .breadcrumb-custom {
                font-size: 0.78rem;
            }
            .site-footer {
                padding: 24px 14px 16px;
                font-size: 0.8rem;
            }
            .footer-links {
                gap: 10px;
            }
        }
        @media (max-width: 520px) {
            .article-card {
                padding: 14px 10px;
                border-radius: var(--radius-sm);
            }
            .article-card h1 {
                font-size: 1.15rem;
            }
            .article-meta {
                font-size: 0.72rem;
                gap: 5px;
            }
            .article-body {
                font-size: 0.9rem;
                line-height: 1.65;
            }
            .article-body h2 {
                font-size: 1.05rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .related-card img {
                height: 140px;
            }
            .article-featured-image img {
                max-height: 200px;
            }
            .btn-accent,
            .btn-outline-accent {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1a1a3e;
            --primary-light: #252560;
            --primary-dark: #0f0f2d;
            --accent: #f0a530;
            --accent-light: #f7c96b;
            --accent-glow: rgba(240, 165, 48, 0.25);
            --surface: #ffffff;
            --surface-alt: #f5f4fa;
            --surface-dark: #141430;
            --text-primary: #1c1c38;
            --text-secondary: #5a5a78;
            --text-muted: #8888a8;
            --text-on-dark: #e8e8f4;
            --text-on-dark-muted: #b0b0c8;
            --border: #e0dfec;
            --border-light: #eeedf5;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(20, 20, 50, 0.06);
            --shadow-md: 0 6px 20px rgba(20, 20, 50, 0.10);
            --shadow-lg: 0 14px 36px rgba(20, 20, 50, 0.14);
            --shadow-glow: 0 0 32px rgba(240, 165, 48, 0.18);
            --sidebar-width: 248px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-heading: 'system-ui', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'system-ui', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--surface-alt);
            margin: 0;
            padding: 0;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary);
        }

        .container {
            max-width: 1140px;
            padding-left: 20px;
            padding-right: 20px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 左侧导航栏（桌面端） ========== */
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary) 40%, var(--primary-light) 100%);
            z-index: 1040;
            display: flex;
            flex-direction: column;
            box-shadow: 4px 0 24px rgba(10, 10, 40, 0.30);
            transition: transform var(--transition-base);
            overflow-y: auto;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
        }
        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 22px 20px 18px 20px;
            font-size: 1.18rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.5px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }
        .sidebar-brand:hover {
            color: var(--accent-light);
        }
        .sidebar-brand i {
            font-size: 1.35rem;
            color: var(--accent);
            flex-shrink: 0;
        }
        .sidebar-nav-list {
            flex: 1;
            padding: 4px 12px 20px 12px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .sidebar-nav-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: var(--text-on-dark-muted);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            position: relative;
        }
        .sidebar-nav-list a i {
            width: 20px;
            text-align: center;
            font-size: 0.95rem;
            flex-shrink: 0;
        }
        .sidebar-nav-list a:hover {
            background: rgba(255, 255, 255, 0.07);
            color: #ffffff;
            transform: translateX(3px);
        }
        .sidebar-nav-list a.active {
            background: rgba(240, 165, 48, 0.15);
            color: #ffffff;
            font-weight: 600;
            box-shadow: var(--shadow-glow);
            border-left: 3px solid var(--accent);
            padding-left: 13px;
        }
        .sidebar-nav-list a.active i {
            color: var(--accent);
        }
        .sidebar-nav-footer {
            padding: 14px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.72rem;
            color: var(--text-on-dark-muted);
            text-align: center;
            letter-spacing: 0.3px;
        }

        /* ========== 移动端导航栏 ========== */
        .mobile-navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 18px;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            position: sticky;
            top: 0;
            z-index: 1030;
            box-shadow: 0 3px 14px rgba(10, 10, 40, 0.28);
        }
        .mobile-brand {
            font-size: 1.05rem;
            font-weight: 700;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .mobile-brand i {
            color: var(--accent);
            font-size: 1.2rem;
        }
        .mobile-navbar .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.20);
            border-radius: var(--radius-sm);
            padding: 7px 10px;
            background: rgba(255, 255, 255, 0.06);
            transition: all var(--transition-fast);
        }
        .mobile-navbar .navbar-toggler:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.35);
        }
        .mobile-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .mobile-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(240, 165, 48, 0.30);
            outline: none;
        }

        /* 移动端Offcanvas */
        .offcanvas-mobile {
            background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary) 100%);
            color: #ffffff;
            border-left: none;
            max-width: 280px;
        }
        .offcanvas-mobile .offcanvas-header {
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 18px 20px;
        }
        .offcanvas-mobile .offcanvas-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 7px;
        }
        .offcanvas-mobile .offcanvas-title i {
            color: var(--accent);
        }
        .offcanvas-mobile .btn-close {
            filter: invert(1) brightness(2);
            opacity: 0.8;
        }
        .offcanvas-mobile .btn-close:hover {
            opacity: 1;
        }
        .offcanvas-mobile .offcanvas-body {
            padding: 8px 16px 24px 16px;
        }
        .offcanvas-mobile .offcanvas-body a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: var(--text-on-dark-muted);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            margin-bottom: 2px;
        }
        .offcanvas-mobile .offcanvas-body a i {
            width: 20px;
            text-align: center;
            font-size: 0.95rem;
        }
        .offcanvas-mobile .offcanvas-body a:hover {
            background: rgba(255, 255, 255, 0.07);
            color: #ffffff;
        }
        .offcanvas-mobile .offcanvas-body a.active {
            background: rgba(240, 165, 48, 0.15);
            color: #ffffff;
            font-weight: 600;
            border-left: 3px solid var(--accent);
            padding-left: 13px;
        }

        /* ========== 主内容区 ========== */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            transition: margin-left var(--transition-base);
        }

        /* ========== Hero板块 ========== */
        .category-hero {
            position: relative;
            background: linear-gradient(160deg, var(--primary-dark) 0%, var(--primary) 45%, #1e1e50 100%);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: #ffffff;
            padding: 80px 0 70px;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 30%, rgba(240, 165, 48, 0.12) 0%, transparent 60%);
            pointer-events: none;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--surface-alt), transparent);
            pointer-events: none;
        }
        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .category-hero .hero-badge {
            display: inline-block;
            background: rgba(240, 165, 48, 0.20);
            color: var(--accent-light);
            padding: 7px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.4px;
            margin-bottom: 18px;
            border: 1px solid rgba(240, 165, 48, 0.25);
        }
        .category-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
            line-height: 1.25;
        }
        .category-hero h1 span {
            color: var(--accent);
        }
        .category-hero .hero-desc {
            font-size: 1.12rem;
            color: var(--text-on-dark-muted);
            margin-bottom: 28px;
            line-height: 1.75;
            max-width: 620px;
        }
        .category-hero .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* ========== 按钮系统 ========== */
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: var(--accent);
            color: #1a1a3e;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 26px;
            border-radius: 50px;
            border: none;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(240, 165, 48, 0.30);
            letter-spacing: 0.3px;
        }
        .btn-accent:hover {
            background: var(--accent-light);
            color: #1a1a3e;
            box-shadow: 0 8px 24px rgba(240, 165, 48, 0.42);
            transform: translateY(-2px);
        }
        .btn-accent:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(240, 165, 48, 0.30);
        }
        .btn-accent:focus-visible {
            outline: 3px solid rgba(240, 165, 48, 0.55);
            outline-offset: 3px;
        }
        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: transparent;
            color: #ffffff;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 26px;
            border-radius: 50px;
            border: 2px solid rgba(255, 255, 255, 0.35);
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
        }
        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.65);
            color: #ffffff;
            transform: translateY(-2px);
        }
        .btn-outline-light-custom:active {
            transform: translateY(0);
        }
        .btn-outline-light-custom:focus-visible {
            outline: 3px solid rgba(255, 255, 255, 0.50);
            outline-offset: 3px;
        }

        /* ========== 板块通用 ========== */
        .section-block {
            padding: 64px 0;
        }
        .section-block.alt-bg {
            background: var(--surface);
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 1.2px;
            margin-bottom: 8px;
            background: rgba(240, 165, 48, 0.08);
            padding: 4px 12px;
            border-radius: 50px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 36px;
            max-width: 640px;
            line-height: 1.65;
        }

        /* ========== 特色卡片 ========== */
        .feature-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            border-color: transparent;
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-card .card-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            background: rgba(240, 165, 48, 0.10);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            color: var(--accent);
            margin-bottom: 16px;
            transition: all var(--transition-base);
        }
        .feature-card:hover .card-icon {
            background: var(--accent);
            color: #1a1a3e;
            transform: scale(1.08);
        }
        .feature-card h3 {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== 场景标签 ========== */
        .scene-tag {
            display: inline-block;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 10px 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-primary);
            transition: all var(--transition-fast);
            cursor: default;
        }
        .scene-tag:hover {
            border-color: var(--accent);
            color: var(--accent);
            box-shadow: var(--shadow-sm);
        }
        .scene-tag i {
            color: var(--accent);
            margin-right: 6px;
        }

        /* ========== 步骤流程 ========== */
        .step-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            padding: 20px 0;
            position: relative;
        }
        .step-item:not(:last-child)::after {
            content: '';
            position: absolute;
            left: 23px;
            top: 52px;
            bottom: -8px;
            width: 2px;
            background: var(--border);
            border-radius: 1px;
        }
        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #1a1a3e;
            font-weight: 800;
            font-size: 1.15rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(240, 165, 48, 0.28);
        }
        .step-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .step-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== 资源卡片（带图片） ========== */
        .resource-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            height: 100%;
        }
        .resource-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .resource-card img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .resource-card:hover img {
            transform: scale(1.04);
        }
        .resource-card .card-body {
            padding: 18px 18px 20px;
        }
        .resource-card .card-body h4 {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .resource-card .card-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.55;
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: var(--surface);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-question {
            width: 100%;
            text-align: left;
            padding: 16px 20px;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--primary);
            background: transparent;
            border: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: color var(--transition-fast);
            cursor: pointer;
        }
        .faq-item .faq-question:hover {
            color: var(--accent);
        }
        .faq-item .faq-question i {
            transition: transform var(--transition-base);
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .faq-item .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-item .faq-answer {
            padding: 0 20px 16px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA板块 ========== */
        .cta-section {
            background: linear-gradient(150deg, var(--primary-dark) 0%, var(--primary) 55%, #1e1e55 100%);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: #ffffff;
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(240, 165, 48, 0.10) 0%, transparent 65%);
            pointer-events: none;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: #ffffff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .cta-section p {
            color: var(--text-on-dark-muted);
            font-size: 1.02rem;
            margin-bottom: 26px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--surface-dark);
            color: var(--text-on-dark);
            padding: 40px 0 28px;
            font-size: 0.88rem;
        }
        .site-footer .footer-brand {
            font-weight: 700;
            font-size: 1.05rem;
            color: #ffffff;
            display: inline-flex;
            align-items: center;
        }
        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links a {
            color: var(--text-on-dark-muted);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
            font-weight: 500;
        }
        .site-footer .footer-links a:hover {
            color: var(--accent-light);
        }
        .site-footer .footer-copy {
            color: var(--text-on-dark-muted);
            font-size: 0.8rem;
            margin: 0;
        }
        .site-footer .footer-divider {
            border-color: rgba(255, 255, 255, 0.08);
            margin: 18px 0;
            opacity: 1;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991.98px) {
            .sidebar-nav {
                display: none;
            }
            .main-content {
                margin-left: 0;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero {
                padding: 50px 0 44px;
            }
            .section-title {
                font-size: 1.55rem;
            }
            .section-block {
                padding: 44px 0;
            }
            .feature-card {
                padding: 22px 18px;
            }
            .resource-card img {
                height: 160px;
            }
            .cta-section h2 {
                font-size: 1.55rem;
            }
        }

        @media (max-width: 767.98px) {
            .category-hero h1 {
                font-size: 1.65rem;
            }
            .category-hero .hero-desc {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .section-block {
                padding: 34px 0;
            }
            .category-hero {
                padding: 38px 0 34px;
            }
            .category-hero .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .category-hero .hero-actions .btn {
                justify-content: center;
                text-align: center;
            }
            .step-item {
                gap: 12px;
            }
            .step-number {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
            .step-item:not(:last-child)::after {
                left: 19px;
                top: 44px;
            }
            .resource-card img {
                height: 140px;
            }
            .site-footer .footer-links {
                justify-content: flex-start;
                gap: 12px;
            }
            .faq-item .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-item .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.84rem;
            }
        }

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .feature-card {
                padding: 18px 15px;
            }
            .feature-card h3 {
                font-size: 1rem;
            }
            .btn-accent,
            .btn-outline-light-custom {
                padding: 10px 20px;
                font-size: 0.88rem;
            }
            .cta-section {
                padding: 40px 0;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
        }

        @media (min-width: 992px) {
            .mobile-navbar {
                display: none;
            }
        }

/* roulang page: category2 */
:root {
            --bg-deep: #08081a;
            --bg-primary: #0d0d28;
            --bg-card: #141435;
            --bg-card-hover: #1a1a45;
            --bg-sidebar: #0a0a20;
            --bg-hero-overlay: rgba(6, 6, 26, 0.75);
            --text-primary: #e8e8f4;
            --text-secondary: #b0b0cc;
            --text-muted: #7878a0;
            --accent: #f0b63a;
            --accent-light: #f7d06e;
            --accent-glow: rgba(240, 182, 58, 0.25);
            --accent-soft: rgba(240, 182, 58, 0.12);
            --border-color: #252550;
            --border-light: #1e1e48;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 36px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(240, 182, 58, 0.15);
            --shadow-btn: 0 4px 14px rgba(240, 182, 58, 0.3);
            --shadow-btn-hover: 0 8px 28px rgba(240, 182, 58, 0.45);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --sidebar-width: 260px;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
        }

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

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

        body {
            font-family: var(--font-stack);
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

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

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

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

        button {
            cursor: pointer;
            font-family: var(--font-stack);
        }

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
        }

        /* ===== 桌面端固定侧边栏 ===== */
        .desktop-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-sidebar);
            border-right: 1px solid var(--border-color);
            z-index: 1050;
            display: flex;
            flex-direction: column;
            padding: 28px 20px;
            overflow-y: auto;
            box-shadow: 2px 0 30px rgba(0, 0, 0, 0.4);
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border-light);
            letter-spacing: 0.03em;
        }

        .sidebar-brand i {
            font-size: 1.4rem;
            color: var(--accent);
            filter: drop-shadow(0 0 6px var(--accent-glow));
        }

        .sidebar-brand:hover {
            color: var(--text-primary);
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-top: 16px;
            flex: 1;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-smooth);
            position: relative;
            letter-spacing: 0.02em;
        }

        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 0.9rem;
            opacity: 0.7;
            transition: opacity var(--transition-fast);
        }

        .sidebar-nav a:hover {
            color: var(--text-primary);
            background: var(--bg-card);
        }

        .sidebar-nav a:hover i {
            opacity: 1;
            color: var(--accent);
        }

        .sidebar-nav a.active {
            color: #fff;
            background: var(--accent-soft);
            font-weight: 600;
            border-left: 3px solid var(--accent);
            padding-left: 13px;
        }

        .sidebar-nav a.active i {
            opacity: 1;
            color: var(--accent);
        }

        .sidebar-footer-tag {
            margin-top: auto;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
            font-size: 0.72rem;
            color: var(--text-muted);
            text-align: center;
            letter-spacing: 0.04em;
        }

        /* ===== 主内容区 ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
        }

        /* ===== 移动端顶部导航 ===== */
        .mobile-navbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            background: var(--bg-sidebar);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.4);
        }

        .mobile-brand {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 6px;
            letter-spacing: 0.02em;
        }

        .mobile-navbar .navbar-toggler {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
            background: var(--bg-card);
            transition: all var(--transition-fast);
        }

        .mobile-navbar .navbar-toggler:hover {
            border-color: var(--accent);
            background: var(--bg-card-hover);
        }

        .mobile-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(232,232,244,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.5' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
            width: 22px;
            height: 22px;
        }

        /* ===== Offcanvas 移动端抽屉 ===== */
        .offcanvas {
            background: var(--bg-sidebar) !important;
            border-right: 1px solid var(--border-color) !important;
        }

        .offcanvas-header {
            border-bottom: 1px solid var(--border-light);
            padding: 16px 20px;
        }

        .offcanvas-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }

        .offcanvas .btn-close {
            filter: invert(0.8) brightness(1.5);
            opacity: 0.8;
        }

        .offcanvas .btn-close:hover {
            opacity: 1;
        }

        .offcanvas-body {
            padding: 20px;
        }

        .offcanvas-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .offcanvas-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 13px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-smooth);
            letter-spacing: 0.02em;
        }

        .offcanvas-nav a i {
            width: 20px;
            text-align: center;
            font-size: 0.9rem;
            opacity: 0.7;
        }

        .offcanvas-nav a:hover {
            color: var(--text-primary);
            background: var(--bg-card);
        }

        .offcanvas-nav a.active {
            color: #fff;
            background: var(--accent-soft);
            font-weight: 600;
            border-left: 3px solid var(--accent);
            padding-left: 13px;
        }

        .offcanvas-nav a.active i {
            opacity: 1;
            color: var(--accent);
        }

        /* ===== 通用板块 ===== */
        .section-block {
            padding: 70px 0;
        }

        .section-block-sm {
            padding: 50px 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent);
            background: var(--accent-soft);
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 40px;
            line-height: 1.7;
        }

        /* ===== Hero 区域 ===== */
        .hero-section {
            position: relative;
            padding: 100px 0 90px;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-attachment: fixed;
            min-height: 480px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--bg-hero-overlay);
            z-index: 1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-deep), transparent);
            z-index: 2;
        }

        .hero-inner {
            position: relative;
            z-index: 3;
            max-width: 700px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-soft);
            border: 1px solid rgba(240, 182, 58, 0.3);
            border-radius: 50px;
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-light);
            margin-bottom: 20px;
            letter-spacing: 0.04em;
        }

        .hero-badge i {
            font-size: 0.75rem;
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
            line-height: 1.2;
            letter-spacing: 0.03em;
        }

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

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.8;
            max-width: 550px;
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #1a1a08;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 13px 28px;
            border-radius: 50px;
            border: none;
            letter-spacing: 0.03em;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-btn);
            cursor: pointer;
        }

        .btn-accent:hover {
            background: var(--accent-light);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
            color: #1a1a08;
        }

        .btn-outline-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 26px;
            border-radius: 50px;
            border: 2px solid var(--accent);
            letter-spacing: 0.03em;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .btn-outline-accent:hover {
            background: var(--accent-soft);
            border-color: var(--accent-light);
            color: var(--accent-light);
            transform: translateY(-2px);
        }

        /* ===== 工具卡片网格 ===== */
        .tool-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 0;
            overflow: hidden;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .tool-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(240, 182, 58, 0.25);
        }

        .tool-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            border-bottom: 1px solid var(--border-light);
        }

        .tool-card-body {
            padding: 22px 20px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .tool-card-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.07em;
            color: var(--accent);
            background: var(--accent-soft);
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .tool-card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .tool-card-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
        }

        .tool-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent);
            margin-top: 14px;
            transition: gap var(--transition-fast);
        }

        .tool-card-link i {
            font-size: 0.75rem;
            transition: transform var(--transition-fast);
        }

        .tool-card-link:hover {
            gap: 10px;
            color: var(--accent-light);
        }

        .tool-card-link:hover i {
            transform: translateX(3px);
        }

        /* ===== 场景卡片 ===== */
        .scenario-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            text-align: center;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
            height: 100%;
        }

        .scenario-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(240, 182, 58, 0.2);
        }

        .scenario-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--accent-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.5rem;
            color: var(--accent);
            transition: all var(--transition-smooth);
        }

        .scenario-card:hover .scenario-icon {
            background: rgba(240, 182, 58, 0.2);
            box-shadow: 0 0 20px var(--accent-glow);
        }

        .scenario-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .scenario-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== 流程步骤 ===== */
        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 20px 0;
            position: relative;
        }

        .step-item+.step-item {
            border-top: 1px solid var(--border-light);
        }

        .step-number {
            flex-shrink: 0;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--accent-soft);
            border: 2px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--accent);
            letter-spacing: 0.03em;
        }

        .step-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }

        .step-content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== 亮点推荐区 ===== */
        .highlight-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            display: flex;
            gap: 20px;
            align-items: center;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
            height: 100%;
        }

        .highlight-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(240, 182, 58, 0.2);
        }

        .highlight-icon-wrap {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: var(--accent-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent);
        }

        .highlight-info h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-primary);
        }

        .highlight-info p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-accordion .accordion-button {
            background: var(--bg-card);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-card-hover);
            color: var(--accent);
            box-shadow: none;
        }

        .faq-accordion .accordion-button::after {
            filter: invert(0.7);
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            filter: invert(1) sepia(1) saturate(5) hue-rotate(340deg);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px var(--accent-glow);
            border-color: var(--accent);
        }

        .faq-accordion .accordion-body {
            background: var(--bg-card);
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.75;
            padding: 8px 22px 22px;
            letter-spacing: 0.01em;
        }

        /* ===== CTA 区域 ===== */
        .cta-section {
            background: linear-gradient(135deg, #10103a 0%, #0a0a28 40%, #141430 100%);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: var(--accent-glow);
            filter: blur(80px);
            z-index: 0;
        }

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

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

        .cta-section p {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-sidebar);
            border-top: 1px solid var(--border-color);
            padding: 40px 0 30px;
            margin-top: 60px;
        }

        .footer-brand {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            letter-spacing: 0.03em;
        }

        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            padding: 0;
            margin: 0;
        }

        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
            letter-spacing: 0.02em;
        }

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

        .footer-copy {
            font-size: 0.78rem;
            color: var(--text-muted);
            letter-spacing: 0.02em;
        }

        .footer-divider {
            border-color: var(--border-light);
            margin: 20px 0;
            opacity: 0.6;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .desktop-sidebar {
                display: none !important;
            }

            .mobile-navbar {
                display: flex;
            }

            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }

            .hero-section {
                padding: 70px 0 60px;
                min-height: 360px;
                background-attachment: scroll;
            }

            .hero-title {
                font-size: 2rem;
            }

            .hero-desc {
                font-size: 0.95rem;
            }

            .section-title {
                font-size: 1.6rem;
            }

            .section-block {
                padding: 50px 0;
            }

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

            .tool-card-img {
                height: 160px;
            }

            .cta-section {
                padding: 36px 20px;
                border-radius: var(--radius-lg);
            }

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

            .highlight-card {
                flex-direction: column;
                text-align: center;
                gap: 14px;
            }

            .step-item {
                gap: 14px;
            }

            .step-number {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }

        @media (max-width: 575.98px) {
            .hero-title {
                font-size: 1.55rem;
            }

            .hero-desc {
                font-size: 0.85rem;
            }

            .hero-badge {
                font-size: 0.72rem;
                padding: 6px 14px;
            }

            .section-title {
                font-size: 1.35rem;
            }

            .section-subtitle {
                font-size: 0.88rem;
            }

            .btn-accent,
            .btn-outline-accent {
                font-size: 0.85rem;
                padding: 10px 20px;
            }

            .tool-card-img {
                height: 140px;
            }

            .tool-card-body {
                padding: 16px 14px 18px;
            }

            .tool-card-title {
                font-size: 1rem;
            }

            .cta-section {
                padding: 28px 16px;
            }

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

            .footer-links {
                justify-content: center;
                gap: 14px;
            }
        }

        @media (min-width: 992px) {
            .mobile-navbar {
                display: none !important;
            }

            .offcanvas {
                display: none !important;
            }
        }