/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0d6e6e;
            --primary-light: #0d9488;
            --primary-lighter: #e6f7f5;
            --primary-dark: #064e4e;
            --secondary: #f59e0b;
            --secondary-light: #fbbf24;
            --accent: #f97316;
            --bg-body: #f0fdfa;
            --bg-card: #ffffff;
            --bg-sidebar: #0b1a2a;
            --bg-sidebar-hover: #112a3e;
            --bg-sidebar-active: #0d6e6e;
            --text-primary: #0f172a;
            --text-secondary: #334155;
            --text-muted: #64748b;
            --text-inverse: #f8fafc;
            --text-sidebar: #cbd5e1;
            --text-sidebar-active: #ffffff;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --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);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --sidebar-width: 260px;
            --header-height: 68px;
            --max-width: 1200px;
            --gap: 32px;
            --gap-sm: 20px;
        }

        /* ===== 基础重置 ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.6;
            display: flex;
            min-height: 100vh;
        }
        a { color: inherit; text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-light); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: 1rem; border: none; outline: none; }
        button { cursor: pointer; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 600; color: var(--text-primary); }
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.35rem; }
        h4 { font-size: 1.1rem; }
        p { margin-bottom: 0.75rem; color: var(--text-secondary); }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--gap);
        }
        .container-narrow { max-width: 860px; }

        /* ===== 侧边导航 ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-sidebar);
            color: var(--text-sidebar);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            overflow-y: auto;
            transition: transform var(--transition);
            box-shadow: 2px 0 20px rgba(0,0,0,0.15);
        }
        .sidebar-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .sidebar-brand a {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-inverse);
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .sidebar-brand a i {
            font-size: 1.5rem;
            color: var(--secondary);
        }
        .sidebar-brand span { color: var(--secondary); font-weight: 300; }
        .sidebar-nav {
            flex: 1;
            padding: 16px 12px;
        }
        .sidebar-nav li { margin-bottom: 4px; }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-sidebar);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition);
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 1.05rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .sidebar-nav a:hover {
            background: var(--bg-sidebar-hover);
            color: var(--text-inverse);
        }
        .sidebar-nav a:hover i { color: var(--secondary); }
        .sidebar-nav a.active {
            background: var(--bg-sidebar-active);
            color: var(--text-sidebar-active);
            box-shadow: 0 2px 12px rgba(13,110,110,0.3);
        }
        .sidebar-nav a.active i { color: var(--secondary); }
        .sidebar-footer {
            padding: 20px 24px;
            border-top: 1px solid rgba(255,255,255,0.06);
            font-size: 0.8rem;
            color: rgba(255,255,255,0.3);
            text-align: center;
        }

        /* ===== 移动端顶部栏 ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: var(--bg-sidebar);
            color: var(--text-inverse);
            z-index: 1100;
            padding: 0 var(--gap-sm);
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0,0,0,0.15);
        }
        .mobile-header .brand {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-inverse);
        }
        .mobile-header .brand i { color: var(--secondary); margin-right: 8px; }
        .mobile-toggle {
            font-size: 1.6rem;
            color: var(--text-inverse);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .mobile-toggle:hover { background: rgba(255,255,255,0.1); }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.45);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .sidebar-overlay.show { opacity: 1; }

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

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(11,26,42,0.88) 0%, rgba(13,110,110,0.78) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: var(--text-inverse);
            text-align: center;
            padding: 80px 24px;
        }
        .hero-content { max-width: 780px; }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 700;
            color: var(--text-inverse);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.2);
        }
        .hero h1 i { color: var(--secondary); }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.85);
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 620px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
        .hero-actions .btn-primary {
            background: var(--secondary);
            color: var(--bg-sidebar);
            padding: 14px 36px;
            border-radius: 60px;
            font-weight: 600;
            font-size: 1.05rem;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(245,158,11,0.35);
        }
        .hero-actions .btn-primary:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245,158,11,0.4);
        }
        .hero-actions .btn-outline {
            background: transparent;
            color: var(--text-inverse);
            border: 2px solid rgba(255,255,255,0.4);
            padding: 12px 32px;
            border-radius: 60px;
            font-weight: 500;
            font-size: 1.05rem;
            transition: all var(--transition);
        }
        .hero-actions .btn-outline:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background: rgba(245,158,11,0.08);
            transform: translateY(-2px);
        }
        .hero-badge {
            display: inline-block;
            background: rgba(245,158,11,0.18);
            color: var(--secondary-light);
            padding: 6px 20px;
            border-radius: 60px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
            border: 1px solid rgba(245,158,11,0.2);
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 72px 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-title .badge-line {
            display: inline-block;
            width: 48px;
            height: 4px;
            background: var(--secondary);
            border-radius: 4px;
            margin-bottom: 16px;
        }
        .bg-white { background: var(--bg-card); }
        .bg-alt { background: var(--primary-lighter); }
        .bg-dark { background: var(--bg-sidebar); color: var(--text-inverse); }
        .bg-dark .section-title h2 { color: var(--text-inverse); }
        .bg-dark .section-title p { color: rgba(255,255,255,0.7); }

        /* ===== 卡片网格 ===== */
        .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap); }
        .grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: var(--gap); }
        .grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: var(--gap); }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 28px 24px;
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--primary-lighter);
        }
        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: var(--primary-lighter);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .card h3 { font-size: 1.2rem; margin-bottom: 8px; }
        .card p { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 0; }
        .card .tag {
            display: inline-block;
            background: var(--primary-lighter);
            color: var(--primary);
            padding: 3px 14px;
            border-radius: 60px;
            font-size: 0.8rem;
            font-weight: 500;
            margin-top: 12px;
        }
        .card-cover {
            padding: 0;
            overflow: hidden;
            border-radius: var(--radius-md);
        }
        .card-cover img { width: 100%; height: 210px; object-fit: cover; border-radius: var(--radius-md) var(--radius-md) 0 0; }
        .card-cover .card-body { padding: 20px 22px 24px; }
        .card-cover .card-body h3 { font-size: 1.15rem; }
        .card-cover .card-body p { font-size: 0.9rem; }

        /* ===== 服务入口卡片 ===== */
        .service-card {
            text-align: center;
            padding: 36px 20px 32px;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .service-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
            border-color: var(--primary-light);
        }
        .service-card .icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 18px;
            border-radius: 50%;
            background: var(--primary-lighter);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: var(--primary);
            transition: all var(--transition);
        }
        .service-card:hover .icon {
            background: var(--primary);
            color: var(--text-inverse);
        }
        .service-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
        .service-card p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 16px; }
        .service-card .btn-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .service-card .btn-link i { font-size: 0.8rem; transition: transform var(--transition); }
        .service-card:hover .btn-link i { transform: translateX(4px); }

        /* ===== 统计数字 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap);
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: rgba(255,255,255,0.06);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.08);
            transition: all var(--transition);
        }
        .stat-item:hover {
            background: rgba(255,255,255,0.1);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.7);
            font-weight: 500;
        }

        /* ===== 资讯列表（CMS） ===== */
        .news-list { display: flex; flex-direction: column; gap: 16px; }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .news-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--primary-lighter);
        }
        .news-item .thumb {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--primary-lighter);
        }
        .news-item .info { flex: 1; }
        .news-item .info h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--text-primary);
        }
        .news-item .info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 6px;
        }
        .news-item .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .news-item .meta .tag {
            background: var(--primary-lighter);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 60px;
            font-size: 0.75rem;
            font-weight: 500;
        }
        .news-empty {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            font-size: 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border);
        }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--primary-lighter); }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background var(--transition);
        }
        .faq-question:hover { background: var(--primary-lighter); }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: transform var(--transition);
        }
        .faq-question.open i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.show { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-sidebar) 0%, var(--primary-dark) 100%);
            padding: 72px 24px;
            text-align: center;
            color: var(--text-inverse);
        }
        .cta-section h2 {
            font-size: 2rem;
            color: var(--text-inverse);
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.75);
            font-size: 1.1rem;
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-cta {
            background: var(--secondary);
            color: var(--bg-sidebar);
            padding: 16px 48px;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1.1rem;
            transition: all var(--transition);
            box-shadow: 0 4px 20px rgba(245,158,11,0.3);
            display: inline-block;
        }
        .cta-section .btn-cta:hover {
            background: var(--secondary-light);
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(245,158,11,0.4);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-sidebar);
            color: var(--text-sidebar);
            padding: 48px 24px 32px;
            margin-top: auto;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand h3 {
            color: var(--text-inverse);
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        .footer-brand h3 i { color: var(--secondary); margin-right: 8px; }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.5);
            line-height: 1.7;
            max-width: 280px;
        }
        .footer-col h4 {
            color: var(--text-inverse);
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul a {
            color: rgba(255,255,255,0.5);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-col ul a:hover { color: var(--secondary); }
        .footer-bottom {
            max-width: var(--max-width);
            margin: 32px auto 0;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.06);
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.3);
        }

        /* ===== 按钮通用 ===== */
        .btn { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; transition: all var(--transition); border-radius: 60px; }
        .btn-sm { padding: 8px 20px; font-size: 0.85rem; }
        .btn-md { padding: 12px 28px; font-size: 0.95rem; }
        .btn-lg { padding: 14px 36px; font-size: 1.05rem; }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .grid-4 { grid-template-columns: 1fr 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-inner { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .sidebar { transform: translateX(-100%); }
            .sidebar.open { transform: translateX(0); }
            .mobile-header { display: flex; }
            .main-content { margin-left: 0; padding-top: var(--header-height); }
            .sidebar-overlay.show { display: block; }
            .hero { min-height: 400px; padding: 60px 20px; }
            .hero h1 { font-size: 2.2rem; }
            .hero p { font-size: 1rem; }
            .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .section { padding: 48px 0; }
            .section-title { margin-bottom: 32px; }
            .section-title h2 { font-size: 1.6rem; }
            .news-item { flex-direction: column; }
            .news-item .thumb { width: 100%; height: 160px; }
            .footer-inner { grid-template-columns: 1fr; gap: 28px; }
            .cta-section h2 { font-size: 1.5rem; }
            .stat-number { font-size: 2.2rem; }
            .container { padding: 0 16px; }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline { width: 100%; text-align: center; justify-content: center; }
        }

        @media (max-width: 520px) {
            .hero h1 { font-size: 1.8rem; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
            .stat-item { padding: 20px 12px; }
            .stat-number { font-size: 1.8rem; }
            .news-item .thumb { height: 120px; }
            .section { padding: 36px 0; }
            .service-card { padding: 24px 16px; }
        }

        /* ===== 实用辅助 ===== */
        .text-center { text-align: center; }
        .mt-8 { margin-top: 8px; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mt-32 { margin-top: 32px; }
        .gap-8 { gap: 8px; }
        .gap-12 { gap: 12px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #0f2b4f;
            --primary-light: #1a4273;
            --accent: #2d8f8f;
            --accent-light: #4ab8b8;
            --accent-dark: #1f6b6b;
            --bg-body: #f5f7fa;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-soft: #eef2f7;
            --text-dark: #1a2332;
            --text-main: #2d3e50;
            --text-muted: #6b7a8a;
            --text-light: #a0b0c0;
            --border: #e2e8f0;
            --border-light: #f0f3f7;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(15, 43, 79, 0.06);
            --shadow-md: 0 6px 24px rgba(15, 43, 79, 0.08);
            --shadow-lg: 0 12px 40px rgba(15, 43, 79, 0.12);
            --shadow-xl: 0 20px 60px rgba(15, 43, 79, 0.16);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --sidebar-width: 260px;
            --header-height: 64px;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-main);
            background: var(--bg-body);
            display: flex;
            min-height: 100vh;
        }
        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-dark); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { color: var(--text-dark); font-weight: 700; line-height: 1.3; }
        h1 { font-size: 2.6rem; }
        h2 { font-size: 2rem; margin-bottom: 1rem; }
        h3 { font-size: 1.35rem; margin-bottom: 0.5rem; }
        h4 { font-size: 1.1rem; }
        p { margin-bottom: 0.75rem; color: var(--text-main); }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .section-padding { padding: 80px 0; }
        .section-title { text-align: center; margin-bottom: 3rem; }
        .section-title h2 { position: relative; display: inline-block; }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 12px auto 0;
        }
        .section-title p { font-size: 1.1rem; color: var(--text-muted); max-width: 640px; margin: 0.75rem auto 0; }
        .text-center { text-align: center; }

        /* ===== Sidebar Navigation ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary);
            color: #fff;
            display: flex;
            flex-direction: column;
            z-index: 1000;
            transition: transform var(--transition);
            overflow-y: auto;
        }
        .sidebar-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .sidebar-brand a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .sidebar-brand a i { font-size: 1.6rem; color: var(--accent-light); }
        .sidebar-brand a span { color: var(--accent-light); font-weight: 400; }
        .sidebar-nav { flex: 1; padding: 16px 0; }
        .sidebar-nav li { margin: 2px 12px; }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: rgba(255,255,255,0.7);
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .sidebar-nav a i { width: 20px; font-size: 1rem; color: rgba(255,255,255,0.5); transition: var(--transition); }
        .sidebar-nav a:hover { background: rgba(255,255,255,0.08); color: #fff; }
        .sidebar-nav a:hover i { color: var(--accent-light); }
        .sidebar-nav a.active {
            background: rgba(45, 143, 143, 0.2);
            color: #fff;
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--accent-light);
        }
        .sidebar-nav a.active i { color: var(--accent-light); }
        .sidebar-footer {
            padding: 18px 24px;
            border-top: 1px solid rgba(255,255,255,0.08);
            font-size: 0.8rem;
            color: rgba(255,255,255,0.4);
            line-height: 1.6;
            text-align: center;
        }
        /* sidebar toggle (mobile) */
        .sidebar-toggle {
            display: none;
            position: fixed;
            top: 12px;
            left: 16px;
            z-index: 1100;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            width: 44px;
            height: 44px;
            font-size: 1.3rem;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }
        .sidebar-toggle:hover { background: var(--primary-light); }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.4);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .sidebar-overlay.show { opacity: 1; }

        /* ===== Main Content ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 120px 0 100px;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: #fff;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,43,79,0.88) 0%, rgba(15,43,79,0.6) 100%);
        }
        .hero .container { position: relative; z-index: 2; text-align: center; }
        .hero h1 {
            font-size: 3rem;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: 1px;
        }
        .hero h1 i { color: var(--accent-light); margin-right: 10px; }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.8);
            max-width: 720px;
            margin: 0 auto 2rem;
        }
        .hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
        .hero-actions .btn { padding: 14px 36px; font-size: 1rem; border-radius: 50px; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            background: var(--bg-white);
            color: var(--text-dark);
            box-shadow: var(--shadow-sm);
        }
        .btn-primary { background: var(--accent); color: #fff; box-shadow: 0 4px 14px rgba(45,143,143,0.3); }
        .btn-primary:hover { background: var(--accent-dark); color: #fff; box-shadow: 0 6px 20px rgba(45,143,143,0.4); transform: translateY(-2px); }
        .btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.4); }
        .btn-outline:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,0.1); transform: translateY(-2px); }
        .btn-outline-accent { background: transparent; color: var(--accent); border: 2px solid var(--accent); }
        .btn-outline-accent:hover { background: var(--accent); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(45,143,143,0.25); }
        .btn-white { background: #fff; color: var(--primary); }
        .btn-white:hover { background: var(--accent-light); color: #fff; transform: translateY(-2px); }
        .btn:focus-visible { outline: 3px solid var(--accent-light); outline-offset: 2px; }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--bg-soft);
            color: var(--text-muted);
            letter-spacing: 0.3px;
        }
        .badge-accent { background: rgba(45,143,143,0.12); color: var(--accent-dark); }
        .badge-hot { background: rgba(220,80,80,0.12); color: #c0392b; }

        /* ===== Service Categories ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 36px 24px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
        .category-card .icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(45,143,143,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: var(--accent);
            transition: var(--transition);
        }
        .category-card:hover .icon { background: var(--accent); color: #fff; }
        .category-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
        .category-card p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 0; }

        /* ===== Service Items (featured) ===== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
        .service-card .card-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .service-card .card-img .badge {
            position: absolute;
            top: 14px;
            left: 14px;
        }
        .service-card .card-body { padding: 22px 24px 24px; }
        .service-card .card-body h3 { font-size: 1.1rem; margin-bottom: 8px; }
        .service-card .card-body p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 16px; }
        .service-card .card-footer { display: flex; justify-content: space-between; align-items: center; }
        .service-card .card-footer .btn { padding: 6px 18px; font-size: 0.85rem; }

        /* ===== Process Steps ===== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
        }
        .process-steps::before {
            content: '';
            position: absolute;
            top: 44px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: var(--border);
            z-index: 0;
        }
        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 auto 18px;
            box-shadow: 0 4px 14px rgba(45,143,143,0.3);
        }
        .step-item h4 { font-size: 1.05rem; margin-bottom: 6px; }
        .step-item p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 0; }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 36px 20px 32px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .stat-card .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-card .stat-number .unit { font-size: 1.4rem; font-weight: 600; }
        .stat-card .stat-label { font-size: 0.95rem; color: var(--text-muted); margin-top: 6px; }

        /* ===== Testimonials ===== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .testimonial-card:hover { box-shadow: var(--shadow-md); }
        .testimonial-card .stars { color: #f1c40f; font-size: 0.9rem; margin-bottom: 12px; }
        .testimonial-card blockquote { font-size: 0.95rem; color: var(--text-main); line-height: 1.7; margin-bottom: 18px; font-style: italic; }
        .testimonial-card .author { display: flex; align-items: center; gap: 12px; }
        .testimonial-card .author .avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--bg-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--text-muted);
        }
        .testimonial-card .author .name { font-weight: 600; font-size: 0.9rem; color: var(--text-dark); }
        .testimonial-card .author .title { font-size: 0.8rem; color: var(--text-muted); }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--accent); }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question i { color: var(--accent); transition: transform var(--transition); font-size: 0.9rem; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            padding: 0 24px;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 80px 0;
            text-align: center;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15,43,79,0.82);
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { color: #fff; font-size: 2.2rem; margin-bottom: 1rem; }
        .cta-section p { color: rgba(255,255,255,0.8); font-size: 1.1rem; max-width: 600px; margin: 0 auto 2rem; }
        .cta-section .btn { padding: 16px 44px; font-size: 1.05rem; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.7);
            padding: 56px 0 0;
            margin-top: auto;
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
        }
        .footer-brand h3 { color: #fff; font-size: 1.4rem; margin-bottom: 12px; }
        .footer-brand h3 i { color: var(--accent-light); margin-right: 8px; }
        .footer-brand p { color: rgba(255,255,255,0.6); font-size: 0.9rem; line-height: 1.7; }
        .footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; font-weight: 600; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul a { color: rgba(255,255,255,0.6); font-size: 0.9rem; transition: var(--transition); }
        .footer-col ul a:hover { color: var(--accent-light); padding-left: 4px; }
        .footer-col ul a i { width: 20px; margin-right: 6px; }
        .footer-bottom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px 24px;
            border-top: 1px solid rgba(255,255,255,0.08);
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
            margin-top: 40px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .categories-grid { grid-template-columns: repeat(2, 1fr); }
            .service-grid { grid-template-columns: repeat(2, 1fr); }
            .process-steps { grid-template-columns: repeat(2, 1fr); }
            .process-steps::before { display: none; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-inner { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .sidebar { transform: translateX(-100%); }
            .sidebar.open { transform: translateX(0); }
            .sidebar-toggle { display: flex; align-items: center; justify-content: center; }
            .sidebar-overlay.show { display: block; opacity: 1; }
            .main-content { margin-left: 0; padding-top: 0; }
            .hero { padding: 100px 0 70px; }
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 1rem; }
            .section-padding { padding: 56px 0; }
            .categories-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .service-grid { grid-template-columns: 1fr; }
            .process-steps { grid-template-columns: repeat(2, 1fr); gap: 24px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .testimonial-grid { grid-template-columns: 1fr; }
            .footer-inner { grid-template-columns: 1fr; gap: 28px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            .cta-section h2 { font-size: 1.6rem; }
        }
        @media (max-width: 520px) {
            .sidebar { width: 80vw; }
            .categories-grid { grid-template-columns: 1fr; }
            .process-steps { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr; }
            .hero h1 { font-size: 1.6rem; }
            .hero-actions .btn { padding: 12px 24px; font-size: 0.9rem; width: 100%; }
            .section-title h2 { font-size: 1.4rem; }
            .container { padding: 0 16px; }
        }

        /* ===== Accessibility ===== */
        :focus-visible { outline: 3px solid var(--accent-light); outline-offset: 2px; }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

        /* ===== Animations ===== */
        @keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
        .animate-fade-up { animation: fadeUp 0.6s ease forwards; }
        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }
        .delay-4 { animation-delay: 0.4s; }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0a5c7e;
            --primary-light: #0f7a9e;
            --primary-dark: #06405a;
            --accent: #2a9d8f;
            --accent-light: #3db8a8;
            --bg-body: #f5f8fc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-sidebar: #0b2a3e;
            --bg-sidebar-hover: #123a52;
            --text-dark: #1a2a3a;
            --text-body: #2d3f50;
            --text-light: #6b7f8f;
            --text-white: #f0f6fc;
            --text-muted: #8a9ba8;
            --border-color: #e2e9f0;
            --border-light: #eef3f8;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(10, 92, 126, 0.06);
            --shadow-md: 0 6px 24px rgba(10, 92, 126, 0.10);
            --shadow-lg: 0 14px 40px rgba(10, 92, 126, 0.12);
            --shadow-card: 0 4px 16px rgba(10, 92, 126, 0.07);
            --transition: all 0.25s ease;
            --sidebar-width: 240px;
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-family);
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.7;
            display: flex;
            min-height: 100vh;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ===== 侧边栏 ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-sidebar);
            color: var(--text-white);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            transition: var(--transition);
            overflow-y: auto;
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
        }
        .sidebar::-webkit-scrollbar {
            width: 4px;
        }
        .sidebar::-webkit-scrollbar-track {
            background: transparent;
        }
        .sidebar::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 8px;
        }

        .sidebar-brand {
            padding: 28px 20px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .sidebar-brand a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: 1px;
        }
        .sidebar-brand a i {
            font-size: 1.6rem;
            color: var(--accent);
        }
        .sidebar-brand a span {
            color: var(--accent-light);
            font-weight: 600;
        }

        .sidebar-nav {
            flex: 1;
            padding: 18px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav li a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        .sidebar-nav li a i {
            width: 20px;
            text-align: center;
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }
        .sidebar-nav li a:hover {
            background: var(--bg-sidebar-hover);
            color: var(--text-white);
        }
        .sidebar-nav li a:hover i {
            color: var(--accent-light);
        }
        .sidebar-nav li a.active {
            background: rgba(42, 157, 143, 0.22);
            color: var(--text-white);
            font-weight: 600;
            border-left: 3px solid var(--accent);
        }
        .sidebar-nav li a.active i {
            color: var(--accent-light);
        }
        .sidebar-nav li a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .sidebar-footer {
            padding: 18px 20px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.6;
            text-align: center;
        }

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

        /* ===== 文章页 Banner ===== */
        .article-banner {
            position: relative;
            padding: 60px 48px 52px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            color: var(--text-white);
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }
        .article-banner .container {
            position: relative;
            z-index: 1;
            max-width: 1100px;
            margin: 0 auto;
        }
        .article-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 20px;
        }
        .article-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.78);
        }
        .article-banner .breadcrumb a:hover {
            color: var(--accent-light);
        }
        .article-banner .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.35);
        }
        .article-banner h1 {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.3;
            max-width: 860px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .article-banner .meta-line {
            display: flex;
            flex-wrap: wrap;
            gap: 18px 30px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.75);
        }
        .article-banner .meta-line .tag {
            display: inline-block;
            background: rgba(42, 157, 143, 0.3);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            color: var(--accent-light);
            font-weight: 500;
            backdrop-filter: blur(4px);
        }

        /* ===== 文章正文 ===== */
        .article-body-section {
            padding: 48px 48px 60px;
            flex: 1;
        }
        .article-body-section .container {
            max-width: 1100px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
        }

        .article-content {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            box-shadow: var(--shadow-card);
        }
        .article-content .content-body {
            font-size: 1.02rem;
            line-height: 1.9;
            color: var(--text-body);
        }
        .article-content .content-body p {
            margin-bottom: 1.2em;
        }
        .article-content .content-body h2,
        .article-content .content-body h3 {
            color: var(--text-dark);
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            font-weight: 600;
        }
        .article-content .content-body h2 {
            font-size: 1.5rem;
            border-left: 4px solid var(--accent);
            padding-left: 16px;
        }
        .article-content .content-body h3 {
            font-size: 1.2rem;
        }
        .article-content .content-body ul,
        .article-content .content-body ol {
            padding-left: 24px;
            margin-bottom: 1.2em;
        }
        .article-content .content-body li {
            margin-bottom: 0.5em;
        }
        .article-content .content-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }
        .article-content .content-body blockquote {
            border-left: 4px solid var(--accent);
            background: var(--bg-body);
            padding: 16px 24px;
            margin: 20px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-content .content-body a {
            color: var(--primary);
            border-bottom: 1px solid transparent;
        }
        .article-content .content-body a:hover {
            border-bottom-color: var(--primary-light);
        }

        .article-content .not-found {
            text-align: center;
            padding: 60px 20px;
        }
        .article-content .not-found i {
            font-size: 3.6rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            display: block;
        }
        .article-content .not-found h2 {
            font-size: 1.6rem;
            color: var(--text-dark);
            margin-bottom: 12px;
        }
        .article-content .not-found p {
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .article-content .not-found .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        /* ===== 侧边栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-widget {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 24px 22px;
            box-shadow: var(--shadow-card);
        }
        .sidebar-widget h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-widget h4 i {
            color: var(--accent);
        }
        .sidebar-widget ul li {
            margin-bottom: 10px;
        }
        .sidebar-widget ul li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            color: var(--text-body);
            transition: var(--transition);
        }
        .sidebar-widget ul li a i {
            color: var(--text-muted);
            font-size: 0.75rem;
            transition: var(--transition);
        }
        .sidebar-widget ul li a:hover {
            background: var(--bg-body);
            color: var(--primary);
        }
        .sidebar-widget ul li a:hover i {
            color: var(--accent);
            transform: translateX(3px);
        }

        .sidebar-widget .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-widget .tag-cloud a {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            background: var(--bg-body);
            font-size: 0.8rem;
            color: var(--text-light);
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }
        .sidebar-widget .tag-cloud a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .sidebar-widget .cover-img {
            border-radius: var(--radius-sm);
            margin-top: 12px;
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            box-shadow: var(--shadow-sm);
        }

        /* ===== 相关文章 ===== */
        .related-section {
            padding: 20px 48px 60px;
        }
        .related-section .container {
            max-width: 1100px;
            margin: 0 auto;
        }
        .related-section h2 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-section h2 i {
            color: var(--accent);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .related-card img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }
        .related-card .card-body {
            padding: 18px 20px 22px;
        }
        .related-card .card-body h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card .card-body h3 a {
            color: var(--text-dark);
        }
        .related-card .card-body h3 a:hover {
            color: var(--primary);
        }
        .related-card .card-body p {
            font-size: 0.88rem;
            color: var(--text-light);
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            gap: 14px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-sidebar);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 48px 0;
            margin-top: auto;
        }
        .footer-inner {
            max-width: 1100px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand h3 i {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .footer-col ul li a i {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
            transform: translateX(3px);
        }
        .footer-bottom {
            max-width: 1100px;
            margin: 0 auto;
            padding: 20px 0 28px;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.4);
            text-align: center;
            letter-spacing: 0.3px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 28px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(10, 92, 126, 0.25);
        }
        .btn:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(10, 92, 126, 0.3);
            color: #fff;
        }
        .btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(10, 92, 126, 0.2);
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-sm {
            padding: 6px 18px;
            font-size: 0.82rem;
        }

        /* ===== 移动端响应式 ===== */
        @media (max-width: 1024px) {
            .article-body-section .container {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .article-banner h1 {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                width: 100%;
                height: auto;
                position: relative;
                flex-direction: row;
                flex-wrap: wrap;
                padding: 0 16px;
                min-height: 56px;
                align-items: center;
            }
            .sidebar-brand {
                padding: 12px 0;
                border-bottom: none;
                flex: 1;
            }
            .sidebar-brand a {
                font-size: 1.1rem;
            }
            .sidebar-nav {
                flex-direction: row;
                padding: 0;
                overflow-x: auto;
                gap: 2px;
                flex: 2;
                order: 1;
                scrollbar-width: none;
            }
            .sidebar-nav::-webkit-scrollbar {
                display: none;
            }
            .sidebar-nav li a {
                padding: 8px 14px;
                font-size: 0.8rem;
                white-space: nowrap;
                border-radius: var(--radius-sm);
            }
            .sidebar-nav li a.active {
                border-left: none;
                border-bottom: 3px solid var(--accent);
            }
            .sidebar-footer {
                display: none;
            }
            .main-wrapper {
                margin-left: 0;
            }
            .article-banner {
                padding: 32px 20px 36px;
            }
            .article-banner h1 {
                font-size: 1.4rem;
            }
            .article-banner .meta-line {
                gap: 12px;
                font-size: 0.8rem;
            }
            .article-body-section {
                padding: 24px 16px 40px;
            }
            .article-content {
                padding: 24px 20px;
            }
            .article-content .content-body {
                font-size: 0.95rem;
            }
            .related-section {
                padding: 16px 16px 40px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .site-footer {
                padding: 32px 16px 0;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .sidebar-nav li a {
                padding: 6px 10px;
                font-size: 0.72rem;
            }
            .article-banner h1 {
                font-size: 1.15rem;
            }
            .article-content {
                padding: 16px 14px;
            }
            .article-content .content-body {
                font-size: 0.9rem;
            }
            .article-content .content-body h2 {
                font-size: 1.2rem;
            }
            .btn {
                padding: 8px 20px;
                font-size: 0.82rem;
            }
            .sidebar-widget {
                padding: 16px 14px;
            }
        }

        /* ===== 工具类 ===== */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* 内容未找到时保留视觉层次 */
        .not-found-img {
            max-width: 200px;
            margin: 0 auto 20px;
            opacity: 0.6;
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0a2e5c;
            --primary-light: #1a4a7a;
            --primary-dark: #071f3f;
            --secondary: #d4a843;
            --secondary-light: #e2c06a;
            --secondary-dark: #b8922e;
            --bg: #f5f7fa;
            --bg-card: #ffffff;
            --bg-alt: #eef1f5;
            --text: #1a1a2e;
            --text-light: #5a6a7e;
            --text-white: #f0f4f8;
            --border: #dce1e8;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 30px rgba(10, 46, 92, 0.08);
            --shadow-hover: 0 16px 48px rgba(10, 46, 92, 0.16);
            --shadow-sidebar: 2px 0 24px rgba(10, 46, 92, 0.06);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --sidebar-width: 240px;
            --header-height: 0px;
            --max-width: 1200px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        a:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary);
        }
        h1 {
            font-size: 2.8rem;
        }
        h2 {
            font-size: 2rem;
            margin-bottom: 1rem;
        }
        h3 {
            font-size: 1.4rem;
            margin-bottom: 0.6rem;
        }
        h4 {
            font-size: 1.1rem;
            margin-bottom: 0.4rem;
        }
        p {
            color: var(--text-light);
            margin-bottom: 1rem;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 {
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--secondary);
            border-radius: 4px;
            margin: 12px auto 0;
        }
        .section-title p {
            max-width: 600px;
            margin: 1rem auto 0;
            font-size: 1.1rem;
        }

        /* ===== 布局 ===== */
        .layout-wrapper {
            display: flex;
            min-height: 100vh;
        }

        /* ===== 左侧导航 ===== */
        .sidebar {
            width: var(--sidebar-width);
            background: var(--primary);
            color: var(--text-white);
            display: flex;
            flex-direction: column;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1000;
            padding: 0;
            transition: transform var(--transition);
            box-shadow: var(--shadow-sidebar);
        }
        .sidebar-brand {
            padding: 28px 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .sidebar-brand a {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-brand a i {
            color: var(--secondary);
            font-size: 1.8rem;
        }
        .sidebar-brand a span {
            color: var(--secondary);
            font-weight: 400;
        }
        .sidebar-nav {
            flex: 1;
            padding: 24px 0;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .sidebar-nav li a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 24px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 1rem;
            font-weight: 500;
            transition: all var(--transition);
            border-left: 3px solid transparent;
        }
        .sidebar-nav li a i {
            width: 20px;
            text-align: center;
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition);
        }
        .sidebar-nav li a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }
        .sidebar-nav li a:hover i {
            color: var(--secondary);
        }
        .sidebar-nav li a.active {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            border-left-color: var(--secondary);
        }
        .sidebar-nav li a.active i {
            color: var(--secondary);
        }
        .sidebar-nav li a:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: -2px;
        }
        .sidebar-footer {
            padding: 20px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.6;
        }

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

        /* ===== Hero / Banner ===== */
        .hero-banner {
            position: relative;
            padding: 100px 40px 80px;
            background: linear-gradient(135deg, rgba(10, 46, 92, 0.88), rgba(7, 31, 63, 0.92)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            color: #fff;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-height: 340px;
        }
        .hero-banner h1 {
            color: #fff;
            font-size: 3.2rem;
            margin-bottom: 0.5rem;
            letter-spacing: 1px;
        }
        .hero-banner h1 i {
            color: var(--secondary);
            margin-right: 12px;
        }
        .hero-banner p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.2rem;
            max-width: 640px;
            margin: 0.8rem auto 0;
        }
        .hero-banner .breadcrumb {
            display: flex;
            gap: 8px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 1.2rem;
        }
        .hero-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }
        .hero-banner .breadcrumb a:hover {
            color: var(--secondary);
        }
        .hero-banner .breadcrumb span {
            color: var(--secondary);
        }

        /* ===== 区块通用 ===== */
        .section-block {
            padding: 70px 40px;
        }
        .section-block.bg-alt {
            background: var(--bg-alt);
        }
        .section-block.bg-white {
            background: #fff;
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 28px;
        }
        .card-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .card-grid.cols-4 {
            grid-template-columns: repeat(4, 1fr);
        }
        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .service-card .card-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .service-card .card-img .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--secondary);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .service-card .card-body {
            padding: 24px 22px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .service-card .card-body h3 {
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
            color: var(--primary);
        }
        .service-card .card-body p {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-bottom: 1rem;
            flex: 1;
        }
        .service-card .card-body .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 1rem;
        }
        .service-card .card-body .card-tags span {
            background: var(--bg-alt);
            color: var(--primary-light);
            padding: 2px 12px;
            border-radius: 14px;
            font-size: 0.78rem;
            font-weight: 500;
        }
        .service-card .card-body .btn-link {
            color: var(--secondary-dark);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .service-card .card-body .btn-link:hover {
            gap: 12px;
            color: var(--primary);
        }

        /* ===== 流程步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 22px 28px;
            box-shadow: var(--shadow);
            text-align: center;
            position: relative;
            transition: all var(--transition);
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 auto 16px;
            transition: background var(--transition);
        }
        .step-item:hover::before {
            background: var(--secondary);
            color: var(--primary);
        }
        .step-item h4 {
            color: var(--primary);
            font-size: 1.1rem;
            margin-bottom: 0.4rem;
        }
        .step-item p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 0;
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 20px 28px;
            text-align: center;
            box-shadow: var(--shadow);
            border-top: 4px solid var(--secondary);
        }
        .stat-item .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .stat-number i {
            font-size: 2rem;
            color: var(--secondary);
            margin-right: 6px;
        }
        .stat-item .stat-label {
            font-size: 1rem;
            color: var(--text-light);
            margin-top: 0.4rem;
            font-weight: 500;
        }

        /* ===== 案例 / 评价 ===== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .testimonial-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 24px 24px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }
        .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .testimonial-card .stars {
            color: var(--secondary);
            font-size: 1rem;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }
        .testimonial-card blockquote {
            font-style: italic;
            color: var(--text);
            margin-bottom: 1rem;
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .testimonial-card .client {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }
        .testimonial-card .client .avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
        }
        .testimonial-card .client .info strong {
            display: block;
            font-size: 0.95rem;
            color: var(--primary);
        }
        .testimonial-card .client .info span {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .faq-item .faq-q {
            padding: 18px 24px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: background var(--transition);
            user-select: none;
        }
        .faq-item .faq-q:hover {
            background: var(--bg-alt);
        }
        .faq-item .faq-q i {
            color: var(--secondary);
            font-size: 1.2rem;
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-q i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-a {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            padding: 60px 40px;
            text-align: center;
            color: #fff;
            border-radius: var(--radius-lg);
            margin: 0 40px 40px;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.1rem;
            max-width: 540px;
            margin: 0 auto 1.8rem;
        }
        .cta-section .btn-cta {
            display: inline-block;
            background: var(--secondary);
            color: var(--primary);
            padding: 16px 48px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            transition: all var(--transition);
            box-shadow: 0 6px 20px rgba(212, 168, 67, 0.4);
        }
        .cta-section .btn-cta:hover {
            background: var(--secondary-light);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(212, 168, 67, 0.5);
        }
        .cta-section .btn-cta:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 4px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 40px 20px;
            margin-top: auto;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 36px;
            padding-bottom: 28px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 0.6rem;
        }
        .footer-brand h3 i {
            color: var(--secondary);
            margin-right: 8px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 0;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 1rem;
            font-weight: 600;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
        }
        .footer-bottom {
            max-width: var(--max-width);
            margin: 20px auto 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
            padding-top: 14px;
        }

        /* ===== 按钮通用 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(10, 46, 92, 0.25);
        }
        .btn-secondary {
            background: var(--secondary);
            color: var(--primary);
        }
        .btn-secondary:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(212, 168, 67, 0.3);
        }
        .btn-outline {
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 移动端导航切换 ===== */
        .sidebar-toggle {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 1100;
            background: var(--primary);
            color: #fff;
            border: none;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(10, 46, 92, 0.3);
            transition: background var(--transition);
            align-items: center;
            justify-content: center;
        }
        .sidebar-toggle:hover {
            background: var(--primary-light);
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.4);
            z-index: 999;
            backdrop-filter: blur(4px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .card-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .hero-banner h1 {
                font-size: 2.6rem;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-toggle {
                display: flex;
            }
            .sidebar-overlay.open {
                display: block;
            }
            .main-content {
                margin-left: 0;
            }
            .hero-banner {
                padding: 80px 24px 60px;
                min-height: 260px;
            }
            .hero-banner h1 {
                font-size: 2rem;
            }
            .hero-banner p {
                font-size: 1rem;
            }
            .section-block {
                padding: 48px 24px;
            }
            .card-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .card-grid.cols-3 {
                grid-template-columns: 1fr 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-section {
                margin: 0 24px 24px;
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .section-title h2 {
                font-size: 1.6rem;
            }
            .site-footer {
                padding: 36px 24px 16px;
            }
        }

        @media (max-width: 520px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
            .card-grid.cols-3 {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-banner h1 {
                font-size: 1.6rem;
            }
            .hero-banner {
                padding: 64px 16px 48px;
                min-height: 200px;
            }
            .section-block {
                padding: 36px 16px;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
            .sidebar-brand a {
                font-size: 1.2rem;
            }
            .sidebar-nav li a {
                padding: 12px 20px;
                font-size: 0.95rem;
            }
            .cta-section .btn-cta {
                padding: 14px 32px;
                font-size: 1rem;
            }
        }

        /* ===== 滚动条美化 ===== */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary-light);
            border-radius: 12px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary);
        }

        /* ===== 选中高亮 ===== */
        ::selection {
            background: var(--secondary);
            color: var(--primary);
        }