/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a4a;
            --primary-light: #2c406a;
            --primary-dark: #0f1a30;
            --accent: #d4a84b;
            --accent-light: #e8c46a;
            --accent-dark: #b88930;
            --bg-body: #f5f7fc;
            --bg-card: #ffffff;
            --bg-dark: #0f1a30;
            --text-primary: #1a2a4a;
            --text-secondary: #4a5a7a;
            --text-light: #8a9ab0;
            --text-white: #ffffff;
            --border-color: #e2e8f0;
            --border-light: #f0f2f6;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26,42,74,0.06);
            --shadow-md: 0 6px 24px rgba(26,42,74,0.08);
            --shadow-lg: 0 16px 48px rgba(26,42,74,0.12);
            --shadow-accent: 0 8px 32px rgba(212,168,75,0.25);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --header-height: 76px;
        }

        /* ===== 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);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            padding-top: var(--header-height);
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; padding: 0; margin: 0; }
        .container { max-width: var(--container-max); padding: 0 24px; margin: 0 auto; }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed; top: 0; left: 0; width: 100%; z-index: 1050;
            height: var(--header-height);
            background: rgba(255,255,255,0.85);
            backdrop-filter: blur(18px) saturate(1.6);
            -webkit-backdrop-filter: blur(18px) saturate(1.6);
            border-bottom: 1px solid rgba(226,232,240,0.5);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex; align-items: center; justify-content: space-between;
            height: 100%;
        }
        .logo {
            font-size: 1.35rem; font-weight: 700; color: var(--primary);
            letter-spacing: -0.3px; display: flex; align-items: center; gap: 10px;
        }
        .logo-icon {
            width: 36px; height: 36px; border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex; align-items: center; justify-content: center;
            color: var(--accent); font-size: 1.1rem; font-weight: 700;
        }
        .logo span { color: var(--accent); }
        .nav-bar { display: flex; align-items: center; gap: 6px; }
        .nav-bar a {
            padding: 8px 18px; border-radius: var(--radius-sm);
            font-size: 0.9rem; font-weight: 500; color: var(--text-secondary);
            transition: var(--transition); position: relative;
        }
        .nav-bar a:hover { color: var(--primary); background: rgba(26,42,74,0.05); }
        .nav-bar a.active {
            color: var(--text-white); background: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .nav-bar a.active:hover { background: var(--primary-light); }
        .nav-cta {
            padding: 8px 22px !important; border-radius: var(--radius-sm) !important;
            background: linear-gradient(135deg, var(--accent), var(--accent-light)) !important;
            color: var(--primary-dark) !important; font-weight: 600 !important;
            box-shadow: var(--shadow-accent) !important; margin-left: 8px;
        }
        .nav-cta:hover {
            transform: translateY(-1px) !important;
            box-shadow: 0 10px 36px rgba(212,168,75,0.35) !important;
        }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--primary); cursor: pointer; padding: 6px; }
        @media (max-width: 768px) {
            .nav-bar {
                position: fixed; top: var(--header-height); left: 0; width: 100%;
                background: rgba(255,255,255,0.98); backdrop-filter: blur(12px);
                flex-direction: column; padding: 16px 20px 24px;
                gap: 4px; border-bottom: 1px solid var(--border-color);
                transform: translateY(-110%); opacity: 0; pointer-events: none;
                transition: var(--transition); box-shadow: var(--shadow-lg);
            }
            .nav-bar.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .nav-bar a { width: 100%; padding: 12px 16px; font-size: 1rem; }
            .nav-cta { margin-left: 0; margin-top: 6px; text-align: center; }
            .nav-toggle { display: block; }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative; min-height: 86vh;
            display: flex; align-items: center;
            background: var(--primary-dark) url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            background-blend-mode: overlay;
            overflow: hidden;
        }
        .hero::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(15,26,48,0.85) 0%, rgba(26,42,74,0.55) 60%, rgba(212,168,75,0.15) 100%);
            z-index: 1;
        }
        .hero .container { position: relative; z-index: 2; color: var(--text-white); padding: 60px 24px; }
        .hero-badge {
            display: inline-flex; align-items: center; gap: 8px;
            background: rgba(212,168,75,0.18); border: 1px solid rgba(212,168,75,0.3);
            padding: 6px 18px; border-radius: 40px; font-size: 0.85rem;
            color: var(--accent-light); margin-bottom: 20px; backdrop-filter: blur(4px);
        }
        .hero h1 {
            font-size: 3.2rem; font-weight: 800; line-height: 1.2;
            letter-spacing: -0.5px; max-width: 780px;
        }
        .hero h1 span { color: var(--accent); }
        .hero p {
            font-size: 1.15rem; color: rgba(255,255,255,0.75);
            max-width: 600px; margin: 20px 0 32px; line-height: 1.8;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
        .hero-actions .btn-primary-custom {
            padding: 14px 36px; border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark); font-weight: 700; font-size: 1rem;
            border: none; box-shadow: var(--shadow-accent);
            transition: var(--transition); display: inline-flex; align-items: center; gap: 10px;
        }
        .hero-actions .btn-primary-custom:hover {
            transform: translateY(-2px); box-shadow: 0 14px 40px rgba(212,168,75,0.4);
        }
        .hero-actions .btn-outline-custom {
            padding: 14px 32px; border-radius: var(--radius-sm);
            background: transparent; color: var(--text-white);
            border: 1.5px solid rgba(255,255,255,0.3); font-weight: 600;
            transition: var(--transition); display: inline-flex; align-items: center; gap: 10px;
        }
        .hero-actions .btn-outline-custom:hover {
            background: rgba(255,255,255,0.08); border-color: var(--accent); color: var(--accent-light);
        }
        .hero-stats {
            display: flex; flex-wrap: wrap; gap: 40px; margin-top: 48px;
            padding-top: 36px; border-top: 1px solid rgba(255,255,255,0.1);
        }
        .hero-stats .stat-item { display: flex; flex-direction: column; }
        .hero-stats .stat-num { font-size: 2rem; font-weight: 800; color: var(--accent); line-height: 1.2; }
        .hero-stats .stat-label { font-size: 0.85rem; color: rgba(255,255,255,0.55); margin-top: 2px; }
        @media (max-width: 768px) {
            .hero { min-height: 70vh; }
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 24px; }
            .hero-stats .stat-num { font-size: 1.5rem; }
        }
        @media (max-width: 520px) {
            .hero h1 { font-size: 1.6rem; }
            .hero-actions { flex-direction: column; }
            .hero-actions a { width: 100%; justify-content: center; }
        }

        /* ===== 板块通用 ===== */
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-card); }
        .section-dark { background: var(--bg-dark); color: var(--text-white); }
        .section-title { font-size: 2rem; font-weight: 700; margin-bottom: 12px; letter-spacing: -0.3px; }
        .section-subtitle { font-size: 1.05rem; color: var(--text-light); max-width: 600px; line-height: 1.7; }
        .section-header { text-align: center; margin-bottom: 48px; }
        .section-header .section-subtitle { margin: 0 auto; }
        @media (max-width: 768px) {
            .section { padding: 56px 0; }
            .section-title { font-size: 1.5rem; }
            .section-header { margin-bottom: 32px; }
        }

        /* ===== 卡片 ===== */
        .card-custom {
            background: var(--bg-card); border-radius: var(--radius-md);
            border: 1px solid var(--border-color); padding: 28px 24px;
            transition: var(--transition); box-shadow: var(--shadow-sm);
            height: 100%;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-md); transform: translateY(-3px);
            border-color: var(--accent-light);
        }
        .card-custom .card-icon {
            width: 52px; height: 52px; border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex; align-items: center; justify-content: center;
            color: var(--accent); font-size: 1.4rem; margin-bottom: 16px;
        }
        .card-custom h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
        .card-custom p { color: var(--text-secondary); font-size: 0.93rem; line-height: 1.7; margin-bottom: 0; }
        .card-cover {
            border-radius: var(--radius-md); overflow: hidden;
            border: 1px solid var(--border-color);
            background: var(--bg-card); box-shadow: var(--shadow-sm);
            transition: var(--transition); height: 100%;
        }
        .card-cover:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
        .card-cover .cover-img {
            width: 100%; height: 200px; object-fit: cover;
            border-bottom: 1px solid var(--border-color);
        }
        .card-cover .cover-body { padding: 20px 22px 24px; }
        .card-cover .cover-body h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; }
        .card-cover .cover-body p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.7; }
        .card-cover .cover-tag {
            display: inline-block; padding: 2px 14px; border-radius: 20px;
            background: rgba(212,168,75,0.12); color: var(--accent-dark);
            font-size: 0.78rem; font-weight: 600; margin-bottom: 10px;
        }

        /* ===== 徽章 / 标签 ===== */
        .badge-custom {
            display: inline-block; padding: 4px 16px; border-radius: 30px;
            font-size: 0.78rem; font-weight: 600;
            background: var(--primary); color: var(--text-white);
        }
        .badge-accent { background: var(--accent); color: var(--primary-dark); }
        .badge-soft { background: rgba(26,42,74,0.06); color: var(--text-secondary); }

        /* ===== 按钮 ===== */
        .btn-custom {
            padding: 12px 30px; border-radius: var(--radius-sm); font-weight: 600;
            border: none; transition: var(--transition); display: inline-flex;
            align-items: center; gap: 8px; font-size: 0.95rem;
        }
        .btn-custom-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--text-white); box-shadow: var(--shadow-sm);
        }
        .btn-custom-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); color: var(--text-white); }
        .btn-custom-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark); box-shadow: var(--shadow-accent);
        }
        .btn-custom-accent:hover { transform: translateY(-2px); box-shadow: 0 12px 36px rgba(212,168,75,0.35); color: var(--primary-dark); }
        .btn-custom-outline {
            background: transparent; border: 1.5px solid var(--border-color); color: var(--text-secondary);
        }
        .btn-custom-outline:hover { border-color: var(--primary); color: var(--primary); background: rgba(26,42,74,0.03); }

        /* ===== 资讯列表 ===== */
        .news-list { display: flex; flex-direction: column; gap: 16px; }
        .news-item {
            display: flex; align-items: flex-start; gap: 18px;
            padding: 20px 24px; background: var(--bg-card);
            border-radius: var(--radius-md); border: 1px solid var(--border-color);
            transition: var(--transition); box-shadow: var(--shadow-sm);
        }
        .news-item:hover { box-shadow: var(--shadow-md); border-color: var(--accent-light); }
        .news-item .news-cat {
            flex-shrink: 0; padding: 3px 14px; border-radius: 20px;
            background: rgba(212,168,75,0.1); color: var(--accent-dark);
            font-size: 0.78rem; font-weight: 600;
        }
        .news-item .news-body { flex: 1; min-width: 0; }
        .news-item .news-body h4 { font-size: 1rem; font-weight: 600; margin-bottom: 4px; }
        .news-item .news-body h4 a { color: var(--text-primary); }
        .news-item .news-body h4 a:hover { color: var(--accent); }
        .news-item .news-body p { color: var(--text-secondary); font-size: 0.88rem; margin-bottom: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .news-item .news-time { flex-shrink: 0; color: var(--text-light); font-size: 0.82rem; white-space: nowrap; }
        @media (max-width: 640px) {
            .news-item { flex-direction: column; gap: 8px; padding: 16px 18px; }
            .news-item .news-time { align-self: flex-end; }
        }

        /* ===== 流程步骤 ===== */
        .steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .step-card {
            text-align: center; padding: 32px 20px; background: var(--bg-card);
            border-radius: var(--radius-md); border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm); transition: var(--transition); position: relative;
        }
        .step-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
        .step-number {
            width: 48px; height: 48px; border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--accent); font-size: 1.2rem; font-weight: 700;
            display: flex; align-items: center; justify-content: center;
            margin: 0 auto 16px; position: relative; z-index: 1;
        }
        .step-card h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
        .step-card p { color: var(--text-secondary); font-size: 0.88rem; line-height: 1.6; margin-bottom: 0; }
        .step-connector { display: none; }
        @media (max-width: 992px) {
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 520px) {
            .steps-grid { grid-template-columns: 1fr; }
        }

        /* ===== 数据 / 统计 ===== */
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .stat-card {
            text-align: center; padding: 32px 16px; border-radius: var(--radius-md);
            background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
            transition: var(--transition);
        }
        .stat-card:hover { background: rgba(255,255,255,0.07); border-color: rgba(212,168,75,0.25); }
        .stat-card .num { font-size: 2.4rem; font-weight: 800; color: var(--accent); line-height: 1.2; }
        .stat-card .label { font-size: 0.9rem; color: rgba(255,255,255,0.6); margin-top: 6px; }
        @media (max-width: 768px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-card .num { font-size: 1.6rem; }
        }

        /* ===== FAQ ===== */
        .faq-list { max-width: 820px; 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-color); overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--accent-light); }
        .faq-q {
            padding: 18px 24px; display: flex; align-items: center; justify-content: space-between;
            cursor: pointer; font-weight: 600; font-size: 1rem;
            transition: var(--transition); user-select: none;
        }
        .faq-q i { color: var(--accent); transition: var(--transition); font-size: 0.9rem; }
        .faq-q[aria-expanded="true"] i { transform: rotate(180deg); }
        .faq-a {
            max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px; color: var(--text-secondary); font-size: 0.93rem; line-height: 1.7;
        }
        .faq-a.open { max-height: 400px; padding: 0 24px 20px; }
        .faq-a p { margin-bottom: 0; }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary-dark) url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            background-blend-mode: overlay; position: relative;
        }
        .cta-section::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(15,26,48,0.8) 0%, rgba(26,42,74,0.5) 100%);
        }
        .cta-section .container { position: relative; z-index: 1; text-align: center; }
        .cta-section h2 { color: var(--text-white); font-size: 2rem; font-weight: 700; }
        .cta-section p { color: rgba(255,255,255,0.7); max-width: 600px; margin: 12px auto 28px; font-size: 1.05rem; }
        .cta-section .btn-custom-accent { font-size: 1.05rem; padding: 14px 40px; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.6);
            padding: 52px 0 32px; border-top: 1px solid rgba(255,255,255,0.04);
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
        .footer-brand .logo { color: var(--text-white); margin-bottom: 12px; }
        .footer-brand p { font-size: 0.88rem; line-height: 1.7; max-width: 320px; }
        .footer-col h4 { color: var(--text-white); font-size: 0.95rem; font-weight: 600; margin-bottom: 14px; }
        .footer-col a { display: block; color: rgba(255,255,255,0.5); font-size: 0.88rem; padding: 4px 0; transition: var(--transition); }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            margin-top: 36px; padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.05);
            display: flex; justify-content: space-between; align-items: center;
            flex-wrap: wrap; gap: 12px; font-size: 0.82rem;
        }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== 分类卡片网格 ===== */
        .category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
        @media (max-width: 640px) { .category-grid { grid-template-columns: 1fr; } }

        /* ===== 空状态 ===== */
        .empty-state { text-align: center; padding: 32px 16px; color: var(--text-light); font-size: 0.95rem; }
        .empty-state i { font-size: 2.4rem; margin-bottom: 12px; opacity: 0.4; }

        /* ===== 响应式微调 ===== */
        @media (max-width: 576px) {
            .hero h1 { font-size: 1.5rem; }
            .section-title { font-size: 1.3rem; }
            .news-item .news-body h4 { font-size: 0.93rem; }
            .card-custom { padding: 20px 16px; }
            .card-cover .cover-body { padding: 16px; }
        }

        /* ===== 可访问性 ===== */
        a:focus-visible, button:focus-visible, .faq-q:focus-visible {
            outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px;
        }
        .btn-custom:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --primary-bg: #eff6ff;
            --secondary: #0f172a;
            --secondary-light: #1e293b;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --text-body: #1e293b;
            --text-muted: #64748b;
            --text-white: #f8fafc;
            --bg-body: #ffffff;
            --bg-alt: #f8fafc;
            --bg-dark: #0f172a;
            --border-color: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::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);
            color: var(--text-body);
            background: var(--bg-body);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--secondary);
        }
        h1 {
            font-size: 2.5rem;
        }
        h2 {
            font-size: 2rem;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.2rem;
        }
        p {
            margin-bottom: 1rem;
            color: var(--text-body);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px) saturate(1.4);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: -0.5px;
        }
        .logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1.2rem;
            font-weight: 700;
        }
        .logo span {
            color: var(--primary);
        }
        .logo:hover {
            color: var(--secondary);
        }
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-bar a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-body);
            transition: var(--transition);
            position: relative;
        }
        .nav-bar a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .nav-bar a.active {
            background: var(--primary);
            color: #fff;
        }
        .nav-bar a.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 10px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
        }
        .nav-bar a.nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--secondary);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-alt);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            margin-top: var(--header-h);
            padding: 80px 0 64px;
            background: linear-gradient(135deg, var(--primary-bg) 0%, #dbeafe 100%);
            position: relative;
            overflow: hidden;
            min-height: 260px;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero h1 {
            font-size: 2.8rem;
            margin-bottom: 12px;
            color: var(--secondary);
        }
        .page-hero p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 680px;
            margin-bottom: 0;
        }
        .page-hero .breadcrumb {
            display: flex;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            align-items: center;
        }
        .page-hero .breadcrumb a {
            color: var(--primary);
        }
        .page-hero .breadcrumb .sep {
            color: var(--text-muted);
        }

        /* ===== Section通用 ===== */
        .section-block {
            padding: 72px 0;
        }
        .section-block.alt-bg {
            background: var(--bg-alt);
        }
        .section-block.dark-bg {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-block.dark-bg h2,
        .section-block.dark-bg h3,
        .section-block.dark-bg .section-sub {
            color: var(--text-white);
        }
        .section-block.dark-bg .section-sub {
            color: rgba(248, 250, 252, 0.75);
        }
        .section-label {
            display: inline-block;
            padding: 4px 16px;
            background: var(--primary-bg);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 2.2rem;
            margin-bottom: 16px;
            color: var(--secondary);
        }
        .section-sub {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 40px;
        }
        .text-center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Card ===== */
        .card-custom {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            transition: var(--transition);
            height: 100%;
            box-shadow: var(--shadow-sm);
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .card-custom .card-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-bg);
            color: var(--primary);
            border-radius: var(--radius-md);
            font-size: 1.5rem;
            margin-bottom: 18px;
        }
        .card-custom h4 {
            margin-bottom: 10px;
            font-size: 1.2rem;
        }
        .card-custom p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        .card-custom .badge-tag {
            display: inline-block;
            padding: 2px 12px;
            background: var(--primary-bg);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-top: 12px;
        }
        .card-cover {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            background: #fff;
            transition: var(--transition);
            height: 100%;
            box-shadow: var(--shadow-sm);
        }
        .card-cover:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .card-cover img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 1px solid var(--border-color);
        }
        .card-cover .card-body {
            padding: 20px 22px 24px;
        }
        .card-cover .card-body h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .card-cover .card-body p {
            color: var(--text-muted);
            font-size: 0.92rem;
            margin-bottom: 0;
        }
        .card-cover .card-body .meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 12px;
            display: flex;
            gap: 16px;
        }

        /* ===== Steps / Timeline ===== */
        .step-item {
            display: flex;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .step-item:last-child {
            border-bottom: none;
        }
        .step-num {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            font-weight: 700;
            font-size: 1.2rem;
        }
        .step-content h4 {
            font-size: 1.15rem;
            margin-bottom: 6px;
        }
        .step-content p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: transparent;
            transition: var(--transition);
            user-select: none;
        }
        .faq-question i {
            transition: transform 0.3s;
            color: var(--primary);
            font-size: 1.1rem;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-answer.show {
            display: block;
        }
        .faq-answer p:last-child {
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-box::after {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.06;
            pointer-events: none;
        }
        .cta-box h3 {
            font-size: 2rem;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-box p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-box .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            border-radius: 50px;
            font-size: 1.05rem;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }
        .cta-box .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
            color: var(--primary-dark);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(248, 250, 252, 0.8);
            padding: 56px 0 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .site-footer .footer-brand .logo {
            color: var(--text-white);
            margin-bottom: 16px;
            font-size: 1.4rem;
        }
        .site-footer .footer-brand p {
            color: rgba(248, 250, 252, 0.6);
            font-size: 0.92rem;
            max-width: 300px;
        }
        .site-footer .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .site-footer .footer-col a {
            display: block;
            color: rgba(248, 250, 252, 0.6);
            font-size: 0.92rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .site-footer .footer-col a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .site-footer .footer-col a i {
            margin-right: 8px;
            width: 18px;
            text-align: center;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(248, 250, 252, 0.4);
        }

        /* ===== Status Badge ===== */
        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .status-badge.green {
            background: #dcfce7;
            color: #16a34a;
        }
        .status-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: currentColor;
            display: inline-block;
            animation: pulse-dot 1.8s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(0.8);
            }
        }

        /* ===== Grid helpers ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 24px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr !important;
                gap: 32px !important;
            }
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
            .page-hero h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-bar {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(18px);
                flex-direction: column;
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                box-shadow: var(--shadow-lg);
                gap: 6px;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .nav-bar.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-bar a {
                width: 100%;
                padding: 12px 18px;
                border-radius: var(--radius-sm);
            }
            .nav-bar a.nav-cta {
                justify-content: center;
                margin-top: 6px;
            }
            .page-hero {
                padding: 60px 0 48px;
                min-height: auto;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
            .section-block {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-box {
                padding: 36px 24px;
            }
            .cta-box h3 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr !important;
                gap: 24px !important;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .step-item {
                flex-direction: column;
                gap: 12px;
            }
            .step-num {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .card-custom {
                padding: 24px 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .logo {
                font-size: 1.2rem;
            }
            .logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 1rem;
            }
            .cta-box .btn-cta {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
        }

        /* ===== 可访问性 ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== 动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: article */
:root {
            --primary: #0d1b2a;
            --primary-light: #1a2d42;
            --accent: #c9a84c;
            --accent-light: #e8d07a;
            --accent-dark: #a8882e;
            --bg-body: #f5f6f8;
            --bg-card: #ffffff;
            --bg-dark: #0d1b2a;
            --text-dark: #1a1a2e;
            --text-body: #3a3a5a;
            --text-light: #6b7280;
            --text-white: #f8f9fa;
            --text-muted: #9ca3af;
            --border-color: #e5e7eb;
            --border-light: #f0f0f5;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 24px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.10);
            --shadow-card: 0 2px 16px rgba(0,0,0,0.04);
            --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        }

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a { color: var(--accent-dark); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { padding-left: 1.25rem; }

        .container { max-width: 1200px; padding: 0 24px; margin: 0 auto; }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--primary);
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            box-shadow: 0 2px 20px rgba(0,0,0,0.25);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: -0.3px;
        }
        .logo:hover { color: var(--accent); }
        .logo .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--accent);
            color: var(--primary);
            border-radius: 10px;
            font-weight: 800;
            font-size: 1.3rem;
        }
        .logo span { color: var(--accent); font-weight: 600; }
        .logo span:last-child { color: var(--text-white); font-weight: 300; }

        .nav-bar {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-bar a {
            color: rgba(255,255,255,0.7);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        .nav-bar a:hover { color: var(--text-white); background: rgba(255,255,255,0.08); }
        .nav-bar a.active { color: var(--accent); background: rgba(201,168,76,0.12); }
        .nav-bar a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-bar a.nav-cta {
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            margin-left: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-bar a.nav-cta:hover { background: var(--accent-light); color: var(--primary); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(201,168,76,0.35); }
        .nav-toggle { display: none; background: none; border: none; color: var(--text-white); font-size: 1.5rem; cursor: pointer; padding: 8px; border-radius: var(--radius-sm); }
        .nav-toggle:hover { background: rgba(255,255,255,0.08); }

        @media (max-width: 992px) {
            .nav-toggle { display: block; }
            .nav-bar {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--primary);
                padding: 20px 24px;
                border-bottom: 1px solid rgba(255,255,255,0.06);
                box-shadow: 0 12px 40px rgba(0,0,0,0.3);
                gap: 12px;
                align-items: stretch;
            }
            .nav-bar.open { display: flex; }
            .nav-bar a { padding: 12px 18px; text-align: center; }
            .nav-bar a.active::after { display: none; }
            .nav-bar a.nav-cta { margin-left: 0; justify-content: center; }
        }
        @media (max-width: 576px) {
            .site-header .container { height: 60px; }
            .logo { font-size: 1.25rem; }
            .logo .logo-icon { width: 32px; height: 32px; font-size: 1.1rem; }
            .nav-bar a { font-size: 0.9rem; padding: 10px 14px; }
        }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            padding: 80px 0 60px;
            background: var(--primary);
            background-image: linear-gradient(135deg, rgba(13,27,42,0.92) 0%, rgba(26,45,66,0.88) 100%), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: var(--text-white);
            overflow: hidden;
        }
        .article-hero::after {
            content: '';
            position: absolute;
            bottom: 0; left: 0; right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--bg-body), transparent);
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a { color: rgba(255,255,255,0.7); }
        .article-breadcrumb a:hover { color: var(--accent); }
        .article-breadcrumb .sep { color: rgba(255,255,255,0.3); }
        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
            color: var(--text-white);
            max-width: 900px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.95rem;
            color: rgba(255,255,255,0.7);
        }
        .article-meta .badge-cat {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .article-meta i { margin-right: 6px; }
        @media (max-width: 768px) {
            .article-hero { padding: 60px 0 50px; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-meta { gap: 14px; font-size: 0.85rem; }
        }
        @media (max-width: 576px) {
            .article-hero h1 { font-size: 1.5rem; }
            .article-hero { padding: 44px 0 40px; }
        }

        /* ===== Article Main ===== */
        .article-main {
            padding: 50px 0 80px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }
        @media (max-width: 992px) {
            .article-layout { grid-template-columns: 1fr; gap: 40px; }
        }

        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            padding: 48px;
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-body);
        }
        .article-body h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 40px 0 16px;
            letter-spacing: -0.3px;
        }
        .article-body h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 32px 0 12px;
        }
        .article-body p {
            margin-bottom: 20px;
        }
        .article-body ul, .article-body ol {
            margin-bottom: 20px;
            padding-left: 1.5rem;
        }
        .article-body li { margin-bottom: 8px; }
        .article-body img {
            margin: 32px auto;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow);
            max-width: 100%;
        }
        .article-body a { font-weight: 500; }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            background: rgba(201,168,76,0.08);
            padding: 20px 24px;
            margin: 28px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-dark);
            font-style: italic;
        }
        .article-body .wp-caption {
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-light);
            margin: 24px 0;
        }
        .article-body .wp-caption img { margin: 0 auto 8px; }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border-color);
        }
        .article-tags .tag {
            display: inline-block;
            background: var(--bg-body);
            color: var(--text-light);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .article-tags .tag:hover { background: var(--accent); color: var(--primary); }

        @media (max-width: 768px) {
            .article-body { padding: 28px 20px; font-size: 1rem; }
            .article-body h2 { font-size: 1.4rem; }
            .article-body h3 { font-size: 1.15rem; }
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            padding: 28px;
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--accent);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i { color: var(--accent); }
        .sidebar-list { list-style: none; padding: 0; margin: 0; }
        .sidebar-list li { margin-bottom: 14px; }
        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--text-body);
            font-size: 0.95rem;
            line-height: 1.5;
            transition: var(--transition);
        }
        .sidebar-list a:hover { color: var(--accent-dark); }
        .sidebar-list a .num {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            background: var(--bg-body);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-light);
        }
        .sidebar-list a:hover .num { background: var(--accent); color: var(--primary); }
        .sidebar-list a .text { flex: 1; }
        .sidebar-list a .text .s-title { display: block; font-weight: 500; color: var(--text-dark); }
        .sidebar-list a .text .s-date { display: block; font-size: 0.8rem; color: var(--text-light); margin-top: 2px; }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            color: var(--text-white);
        }
        .sidebar-cta h4 { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; }
        .sidebar-cta p { font-size: 0.9rem; color: rgba(255,255,255,0.7); margin-bottom: 20px; }
        .sidebar-cta .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--primary);
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .sidebar-cta .btn-cta:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(201,168,76,0.3); }

        @media (max-width: 992px) {
            .article-sidebar { flex-direction: row; flex-wrap: wrap; }
            .sidebar-card { flex: 1; min-width: 260px; }
            .sidebar-cta { flex: 1; min-width: 260px; }
        }
        @media (max-width: 576px) {
            .sidebar-card { padding: 20px; }
            .sidebar-cta { padding: 24px 18px; }
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 24px;
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
        }
        .not-found-box i { font-size: 4rem; color: var(--text-muted); margin-bottom: 24px; }
        .not-found-box h2 { font-size: 1.8rem; color: var(--text-dark); margin-bottom: 12px; }
        .not-found-box p { color: var(--text-light); margin-bottom: 24px; font-size: 1.05rem; }
        .not-found-box a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--primary);
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
        }
        .not-found-box a:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(201,168,76,0.25); }

        /* ===== Related Posts ===== */
        .related-section {
            margin-top: 60px;
            padding-top: 40px;
            border-top: 1px solid var(--border-color);
        }
        .related-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-section h2 i { color: var(--accent); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .related-card .card-img {
            height: 180px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        .related-card .card-img img { width: 100%; height: 100%; object-fit: cover; border-radius: 0; }
        .related-card .card-body { padding: 20px; }
        .related-card .card-body .cat-tag {
            display: inline-block;
            background: rgba(201,168,76,0.12);
            color: var(--accent-dark);
            padding: 2px 12px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .related-card .card-body h4 { font-size: 1.05rem; font-weight: 600; color: var(--text-dark); margin-bottom: 8px; line-height: 1.4; }
        .related-card .card-body h4 a { color: var(--text-dark); }
        .related-card .card-body h4 a:hover { color: var(--accent-dark); }
        .related-card .card-body p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        @media (max-width: 992px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 576px) {
            .related-grid { grid-template-columns: 1fr; }
            .related-section h2 { font-size: 1.3rem; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
            font-size: 0.95rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .footer-brand .logo { margin-bottom: 16px; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 320px; }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.55);
            padding: 5px 0;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-col a i { width: 20px; margin-right: 6px; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
            flex-wrap: wrap;
            gap: 8px;
        }
        @media (max-width: 992px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 576px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .site-footer { padding: 40px 0 0; }
        }

        /* ===== Back to Top ===== */
        .back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            background: var(--accent);
            color: var(--primary);
            border: none;
            border-radius: 50%;
            font-size: 1.2rem;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(201,168,76,0.3);
            transition: var(--transition);
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            z-index: 999;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .back-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
        .back-top:hover { background: var(--accent-light); transform: translateY(-4px); box-shadow: 0 8px 28px rgba(201,168,76,0.4); }
        @media (max-width: 576px) {
            .back-top { bottom: 20px; right: 20px; width: 42px; height: 42px; font-size: 1rem; }
        }

        /* ===== Print ===== */
        @media print {
            .site-header, .site-footer, .article-sidebar, .related-section, .back-top, .nav-toggle { display: none !important; }
            .article-hero { padding: 40px 0; background: var(--primary) !important; }
            .article-body { box-shadow: none; padding: 24px; }
            .article-layout { grid-template-columns: 1fr; }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1e40af;
            --primary-light: #dbeafe;
            --secondary: #f59e0b;
            --secondary-dark: #d97706;
            --accent: #8b5cf6;
            --bg-body: #f8fafc;
            --bg-white: #ffffff;
            --bg-gray: #f1f5f9;
            --bg-dark: #0f172a;
            --text-dark: #0f172a;
            --text-body: #334155;
            --text-light: #64748b;
            --text-white: #ffffff;
            --border-color: #e2e8f0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .logo span {
            color: var(--primary);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-size: 1.1rem;
            font-weight: 800;
            margin-right: 4px;
            flex-shrink: 0;
        }
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-bar a {
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-bar a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-bar a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-bar a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }
        .nav-bar .nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-bar .nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
        }
        .nav-toggle:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        @media (max-width: 820px) {
            .nav-toggle {
                display: block;
            }
            .nav-bar {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.35s ease;
            }
            .nav-bar.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-bar a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .nav-bar a.active::after {
                display: none;
            }
            .nav-bar .nav-cta {
                justify-content: center;
                margin-top: 6px;
            }
        }
        @media (max-width: 480px) {
            :root {
                --header-height: 64px;
            }
            .logo {
                font-size: 1.2rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.95rem;
            }
            .nav-bar {
                padding: 12px 16px 20px;
            }
        }

        /* ===== 分类 Hero ===== */
        .category-hero {
            padding: 60px 0 80px;
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.2;
            z-index: 0;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 64, 175, 0.7) 100%);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 16px;
        }
        .category-hero .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }
        .category-hero .breadcrumb a:hover {
            color: #fff;
        }
        .category-hero .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
        }
        .category-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin: 0 0 12px;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .category-hero h1 span {
            color: var(--secondary);
        }
        .category-hero .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            line-height: 1.7;
            margin: 0;
        }
        .category-hero .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(6px);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.15);
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }
        @media (max-width: 768px) {
            .category-hero {
                padding: 40px 0 56px;
                min-height: 240px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero .hero-desc {
                font-size: 1rem;
            }
        }
        @media (max-width: 480px) {
            .category-hero h1 {
                font-size: 1.65rem;
            }
            .category-hero .hero-desc {
                font-size: 0.92rem;
            }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 70px 0;
        }
        .section-alt {
            background: var(--bg-gray);
        }
        .section-white {
            background: var(--bg-white);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
            letter-spacing: -0.3px;
        }
        .section-sub {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto 40px;
            text-align: center;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-title {
            margin-bottom: 10px;
        }
        .section-header .section-sub {
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-sub {
                font-size: 0.95rem;
                margin-bottom: 28px;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }
        @media (max-width: 480px) {
            .section {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.35rem;
            }
        }

        /* ===== 特色卡片 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .feature-card .fc-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: #fff;
            margin-bottom: 18px;
        }
        .feature-card .fc-icon.blue {
            background: var(--primary);
        }
        .feature-card .fc-icon.amber {
            background: var(--secondary);
        }
        .feature-card .fc-icon.purple {
            background: var(--accent);
        }
        .feature-card .fc-icon.green {
            background: #10b981;
        }
        .feature-card .fc-icon.rose {
            background: #f43f5e;
        }
        .feature-card .fc-icon.cyan {
            background: #06b6d4;
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 10px;
        }
        .feature-card p {
            font-size: 0.92rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.65;
        }
        .feature-card .fc-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 2px 12px;
            border-radius: 50px;
            margin-top: 14px;
        }
        @media (max-width: 992px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 576px) {
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .feature-card {
                padding: 24px 20px;
            }
        }

        /* ===== 详细特色区块 ===== */
        .detail-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .detail-row.reverse {
            direction: rtl;
        }
        .detail-row.reverse>* {
            direction: ltr;
        }
        .detail-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4/3;
            background: var(--bg-gray);
        }
        .detail-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .detail-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 14px;
        }
        .detail-content p {
            font-size: 1rem;
            color: var(--text-body);
            line-height: 1.8;
            margin: 0 0 18px;
        }
        .detail-content .detail-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .detail-content .detail-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-body);
            padding: 6px 0;
        }
        .detail-content .detail-list li i {
            color: var(--primary);
            margin-top: 3px;
            flex-shrink: 0;
        }
        @media (max-width: 992px) {
            .detail-row {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .detail-row.reverse {
                direction: ltr;
            }
            .detail-img {
                aspect-ratio: 16/9;
            }
            .detail-content h3 {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 576px) {
            .detail-content h3 {
                font-size: 1.15rem;
            }
            .detail-content p {
                font-size: 0.92rem;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 20px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .stat-card .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-card .stat-label {
            font-size: 0.92rem;
            color: var(--text-light);
            margin: 0;
        }
        .stat-card .stat-icon {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 12px;
        }
        @media (max-width: 992px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 576px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-card .stat-num {
                font-size: 1.8rem;
            }
        }

        /* ===== 平台亮点 ===== */
        .highlight-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .highlight-item {
            display: flex;
            gap: 18px;
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            padding: 24px 22px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .highlight-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
        }
        .highlight-item .hi-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .highlight-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 6px;
        }
        .highlight-item p {
            font-size: 0.88rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .highlight-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .highlight-item {
                padding: 18px 16px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            text-align: left;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .faq-question i {
            color: var(--primary);
            transition: transform 0.3s;
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }
        @media (max-width: 576px) {
            .faq-question {
                padding: 14px 16px;
                font-size: 0.92rem;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.88rem;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
            padding: 70px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.1;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin: 0 0 14px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--secondary);
            color: var(--text-dark);
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .cta-section .cta-btn:hover {
            background: var(--secondary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.35);
            color: var(--text-dark);
        }
        .cta-section .cta-btn i {
            font-size: 1.1rem;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .cta-section .cta-btn {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
        }
        @media (max-width: 480px) {
            .cta-section h2 {
                font-size: 1.35rem;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            color: var(--text-white);
            font-size: 1.3rem;
            margin-bottom: 14px;
            display: inline-flex;
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            margin: 12px 0 0;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 0 0 16px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .footer-col a i {
            width: 20px;
            margin-right: 4px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding: 20px 0;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .gap-8 {
            gap: 8px;
        }

        /* ===== Bootstrap 覆盖 ===== */
        .btn-primary {
            background: var(--primary) !important;
            border-color: var(--primary) !important;
            border-radius: var(--radius-sm) !important;
            font-weight: 600 !important;
            padding: 10px 24px !important;
            transition: var(--transition) !important;
        }
        .btn-primary:hover {
            background: var(--primary-dark) !important;
            border-color: var(--primary-dark) !important;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline-primary {
            border-color: var(--primary) !important;
            color: var(--primary) !important;
            border-radius: var(--radius-sm) !important;
            font-weight: 600 !important;
            padding: 10px 24px !important;
            transition: var(--transition) !important;
        }
        .btn-outline-primary:hover {
            background: var(--primary) !important;
            color: #fff !important;
            box-shadow: var(--shadow-md);
        }

        /* ===== 图片装饰 ===== */
        .img-deco {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .img-deco::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40%;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.3), transparent);
            pointer-events: none;
        }

        @media (max-width: 820px) {
            body {
                padding-top: var(--header-height);
            }
            .nav-bar a.active::after {
                display: none;
            }
        }