/* roulang page: index */
/* ===== CSS 设计变量 ===== */
        :root {
            --primary: #1a56db;
            --primary-dark: #0f3a8e;
            --primary-light: #3b82f6;
            --primary-bg: #eff6ff;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fbbf24;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --bg-section-alt: #f1f5f9;
            --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 12px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.10);
            --shadow-xl: 0 24px 48px rgba(0,0,0,0.12);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --max-width: 1200px;
            --nav-height: 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover, a:focus { color: var(--primary-dark); }
        a:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; border-radius: 4px; }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }

        /* ===== 容器 ===== */
        .container-custom {
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media screen and (max-width: 639px) {
            .container-custom { padding-left: 16px; padding-right: 16px; }
        }

        /* ===== 导航 (悬浮胶囊风格) ===== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: calc(100% - 32px);
            max-width: var(--max-width);
            background: rgba(255,255,255,0.88);
            backdrop-filter: blur(18px) saturate(1.6);
            -webkit-backdrop-filter: blur(18px) saturate(1.6);
            border-radius: var(--radius-xl);
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
            border: 1px solid rgba(255,255,255,0.6);
            padding: 0 28px;
            transition: box-shadow var(--transition), background var(--transition);
        }
        .site-header.scrolled {
            background: rgba(255,255,255,0.96);
            box-shadow: 0 8px 30px rgba(0,0,0,0.10);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
        }
        .site-logo {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.3px;
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .site-logo i {
            font-size: 26px;
            color: var(--primary);
        }
        .site-logo:hover { color: var(--primary); }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-list li a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .nav-list li a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(26,86,219,0.25);
        }
        .nav-list li a.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            font-size: 24px;
            color: var(--text-primary);
            padding: 8px;
            border-radius: 8px;
            background: transparent;
            transition: background var(--transition);
        }
        .nav-toggle:hover { background: var(--primary-bg); }

        /* 移动端导航 */
        @media screen and (max-width: 768px) {
            .site-header {
                top: 12px;
                width: calc(100% - 24px);
                padding: 0 16px;
                border-radius: var(--radius-lg);
            }
            .nav-list {
                position: absolute;
                top: calc(100% + 8px);
                left: 8px;
                right: 8px;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(18px);
                border-radius: var(--radius-md);
                box-shadow: var(--shadow-lg);
                flex-direction: column;
                padding: 12px 8px;
                gap: 4px;
                display: none;
                border: 1px solid var(--border-color);
            }
            .nav-list.open { display: flex; }
            .nav-list li a {
                width: 100%;
                padding: 12px 20px;
                border-radius: 10px;
            }
            .nav-toggle { display: block; }
            .site-logo { font-size: 20px; }
        }

        @media screen and (max-width: 520px) {
            .site-header { top: 8px; width: calc(100% - 16px); padding: 0 12px; border-radius: var(--radius-md); }
            .header-inner { height: 62px; }
            .site-logo { font-size: 17px; gap: 6px; }
            .site-logo i { font-size: 20px; }
            .nav-list { padding: 10px 6px; }
            .nav-list li a { padding: 10px 16px; font-size: 14px; }
        }

        /* ===== Hero 首屏 ===== */
        .hero-section {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(145deg, #f0f4ff 0%, #e6edfa 40%, #dce6f5 100%);
            padding: 140px 24px 80px;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(59,130,246,0.10) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -15%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(245,158,11,0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-content {
            text-align: center;
            max-width: 820px;
            position: relative;
            z-index: 1;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(26,86,219,0.10);
            color: var(--primary);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid rgba(26,86,219,0.15);
        }
        .hero-badge i { font-size: 14px; }
        .hero-title {
            font-size: 56px;
            font-weight: 800;
            letter-spacing: -1.2px;
            line-height: 1.15;
            color: var(--text-primary);
            margin-bottom: 20px;
        }
        .hero-title span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-sub {
            font-size: 20px;
            color: var(--text-secondary);
            line-height: 1.6;
            max-width: 640px;
            margin: 0 auto 36px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn-primary, .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            transition: all var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(26,86,219,0.30);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26,86,219,0.35);
        }
        .btn-primary:active { transform: translateY(0); }
        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border-color: var(--border-color);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(26,86,219,0.04);
            transform: translateY(-2px);
        }
        .hero-meta {
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            justify-content: center;
            font-size: 14px;
            color: var(--text-muted);
        }
        .hero-meta i { color: var(--primary); margin-right: 6px; }

        @media screen and (max-width: 768px) {
            .hero-section { padding: 120px 20px 60px; min-height: auto; }
            .hero-title { font-size: 38px; }
            .hero-sub { font-size: 17px; }
            .btn-primary, .btn-outline { padding: 12px 28px; font-size: 15px; }
            .hero-meta { gap: 20px; font-size: 13px; }
        }
        @media screen and (max-width: 520px) {
            .hero-title { font-size: 28px; letter-spacing: -0.5px; }
            .hero-sub { font-size: 15px; }
            .hero-actions { flex-direction: column; align-items: center; }
            .btn-primary, .btn-outline { width: 100%; max-width: 280px; justify-content: center; }
            .hero-meta { flex-direction: column; gap: 8px; align-items: center; }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-bg);
            color: var(--primary);
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }
        @media screen and (max-width: 768px) {
            .section { padding: 56px 0; }
            .section-title { font-size: 26px; }
            .section-desc { font-size: 16px; }
            .section-header { margin-bottom: 36px; }
        }
        @media screen and (max-width: 520px) {
            .section { padding: 40px 0; }
            .section-title { font-size: 22px; }
            .section-desc { font-size: 15px; }
        }

        /* ===== 卡片通用 ===== */
        .card-custom {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-custom .card-body { padding: 24px; }
        .card-custom .card-title { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
        .card-custom .card-text { font-size: 15px; color: var(--text-secondary); line-height: 1.6; }

        /* ===== 分类入口板块 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            text-align: center;
        }
        .category-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
            border-color: var(--primary-light);
        }
        .category-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin: 0 auto 18px;
            transition: all var(--transition);
        }
        .category-card:hover .category-icon {
            background: var(--primary);
            color: #fff;
        }
        .category-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
        .category-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
        .category-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }
        .category-link i { transition: transform var(--transition); }
        .category-link:hover i { transform: translateX(4px); }

        @media screen and (max-width: 768px) {
            .category-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
        }
        @media screen and (max-width: 520px) {
            .category-grid { grid-template-columns: 1fr; gap: 16px; }
            .category-card { padding: 24px 20px; }
        }

        /* ===== 最新资讯列表 (CMS) ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            display: flex;
            align-items: flex-start;
            gap: 20px;
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
            transform: translateX(4px);
        }
        .news-item .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
            min-width: 120px;
        }
        .news-item .news-cat {
            display: inline-block;
            background: var(--primary-bg);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
        }
        .news-item .news-date {
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
        }
        .news-item .news-content { flex: 1; min-width: 0; }
        .news-item .news-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
            transition: color var(--transition);
            display: block;
        }
        .news-item .news-title:hover { color: var(--primary); }
        .news-item .news-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-empty {
            text-align: center;
            padding: 48px 20px;
            color: var(--text-muted);
            font-size: 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
        }

        @media screen and (max-width: 768px) {
            .news-item { flex-direction: column; gap: 10px; padding: 16px 18px; }
            .news-item .news-meta { min-width: auto; flex-wrap: wrap; }
            .news-item .news-title { font-size: 16px; }
        }
        @media screen and (max-width: 520px) {
            .news-item { padding: 14px 16px; }
            .news-item .news-title { font-size: 15px; }
            .news-item .news-excerpt { font-size: 13px; }
        }

        /* ===== 特色优势板块 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .feature-card .f-icon {
            font-size: 36px;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .feature-card h4 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
        .feature-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.5; }
        .feature-card .f-stat {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 4px;
        }

        @media screen and (max-width: 768px) {
            .features-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
        }
        @media screen and (max-width: 520px) {
            .features-grid { grid-template-columns: 1fr; gap: 14px; }
            .feature-card { padding: 22px 16px; }
        }

        /* ===== 使用流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            position: relative;
            transition: all var(--transition);
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .step-card .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            margin: 0 auto 16px;
            transition: all var(--transition);
        }
        .step-card:hover .step-num {
            background: var(--primary-dark);
            transform: scale(1.05);
        }
        .step-card h4 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
        .step-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.5; }
        .step-arrow {
            display: none;
        }

        @media screen and (max-width: 768px) {
            .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
        }
        @media screen and (max-width: 520px) {
            .steps-grid { grid-template-columns: 1fr; gap: 14px; }
            .step-card { padding: 22px 16px; }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--primary-light); }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            text-align: left;
            transition: background var(--transition);
            gap: 12px;
        }
        .faq-question:hover { background: var(--primary-bg); }
        .faq-question i {
            font-size: 18px;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        @media screen and (max-width: 520px) {
            .faq-question { padding: 14px 16px; font-size: 15px; }
            .faq-answer { font-size: 14px; }
            .faq-item.open .faq-answer { padding: 0 16px 16px; }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(145deg, var(--primary-dark) 0%, var(--primary) 100%);
            padding: 80px 24px;
            text-align: center;
            border-radius: var(--radius-lg);
            margin: 0 24px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -15%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-section .cta-title {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-section .cta-desc {
            font-size: 18px;
            color: rgba(255,255,255,0.80);
            max-width: 540px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 1;
        }
        .cta-section .btn-primary {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 16px rgba(0,0,0,0.15);
        }
        .cta-section .btn-primary:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            box-shadow: 0 8px 24px rgba(0,0,0,0.20);
        }

        @media screen and (max-width: 768px) {
            .cta-section { padding: 56px 20px; margin: 0 16px; border-radius: var(--radius-md); }
            .cta-section .cta-title { font-size: 26px; }
            .cta-section .cta-desc { font-size: 16px; }
        }
        @media screen and (max-width: 520px) {
            .cta-section { padding: 40px 16px; margin: 0 8px; }
            .cta-section .cta-title { font-size: 22px; }
            .cta-section .cta-desc { font-size: 15px; }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0f172a;
            color: rgba(255,255,255,0.70);
            padding: 60px 24px 32px;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .site-logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .site-logo i { color: var(--accent); }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255,255,255,0.55);
            max-width: 320px;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255,255,255,0.55);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover { color: var(--accent); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.10);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: rgba(255,255,255,0.40);
        }
        .footer-bottom a { color: rgba(255,255,255,0.50); }
        .footer-bottom a:hover { color: var(--accent); }

        @media screen and (max-width: 768px) {
            .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
            .site-footer { padding: 40px 20px 24px; margin-top: 56px; }
        }
        @media screen and (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .site-footer { padding: 32px 16px 20px; margin-top: 40px; }
        }

        /* ===== 工具类 ===== */
        .text-center { text-align: center; }
        .mt-1 { margin-top: 8px; }
        .mt-2 { margin-top: 16px; }
        .mt-3 { margin-top: 24px; }
        .mb-2 { margin-bottom: 16px; }
        .gap-2 { gap: 12px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .section-alt-round {
            background: var(--bg-section-alt);
            border-radius: var(--radius-lg);
            padding: 60px 24px;
            margin: 0 24px;
        }
        @media screen and (max-width: 520px) {
            .section-alt-round { padding: 36px 16px; margin: 0 8px; border-radius: var(--radius-md); }
        }

        /* ===== 滚动条美化 ===== */
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: var(--bg-body); }
        ::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 8px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

        /* ===== 选中颜色 ===== */
        ::selection { background: var(--primary-light); color: #fff; }

/* roulang page: article */
:root {
            --primary: #0d6efd;
            --primary-dark: #0a58cc;
            --primary-light: #e8f0fe;
            --secondary: #6c63ff;
            --accent: #ff6b35;
            --bg: #f8faff;
            --bg-card: #ffffff;
            --bg-dark: #1a1f36;
            --text: #1e293b;
            --text-light: #64748b;
            --text-white: #f1f5f9;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 4px 24px rgba(13, 110, 253, 0.08);
            --shadow-hover: 0 12px 40px rgba(13, 110, 253, 0.15);
            --shadow-nav: 0 8px 32px rgba(0, 0, 0, 0.06);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 76px;
        }

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

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

        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover, a:focus {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul { list-style: none; }

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        @media screen and (max-width: 640px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px) saturate(180%);
            -webkit-backdrop-filter: blur(18px) saturate(180%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
            box-shadow: var(--shadow-nav);
            transition: background var(--transition);
        }

        .site-header .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary) !important;
            letter-spacing: -0.5px;
            transition: opacity var(--transition);
        }
        .site-logo i {
            font-size: 1.4rem;
            color: var(--secondary);
        }
        .site-logo:hover {
            opacity: 0.85;
            color: var(--primary) !important;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 1.3rem;
            color: var(--text);
            cursor: pointer;
            transition: all var(--transition);
            line-height: 1;
        }
        .nav-toggle:hover, .nav-toggle:focus {
            border-color: var(--primary);
            color: var(--primary);
            outline: none;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
            padding: 0;
        }
        .nav-list li a {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 100px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }
        .nav-list li a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-list li a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(13, 110, 253, 0.3);
        }
        .nav-list li a.active:hover {
            color: #fff;
            background: var(--primary-dark);
        }

        @media screen and (max-width: 868px) {
            .nav-toggle {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 16px;
                right: 16px;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(18px);
                border-radius: var(--radius);
                box-shadow: var(--shadow-hover);
                padding: 12px 8px;
                gap: 4px;
                border: 1px solid var(--border);
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 12px 20px;
                font-size: 1rem;
                width: 100%;
                text-align: left;
                border-radius: var(--radius-sm);
            }
        }

        /* ===== Article Hero ===== */
        .article-hero {
            background: linear-gradient(135deg, #f0f6ff 0%, #e8effe 100%);
            padding: 60px 0 40px;
            border-bottom: 1px solid var(--border);
        }
        .article-hero .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 20px;
        }
        .article-hero .breadcrumb a {
            color: var(--text-light);
        }
        .article-hero .breadcrumb a:hover {
            color: var(--primary);
        }
        .article-hero .breadcrumb .sep {
            color: var(--border);
        }
        .article-hero .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
        }
        .article-hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .article-hero .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .article-hero .meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-hero .meta i {
            font-size: 0.85rem;
            color: var(--primary);
        }
        .article-hero .category-badge {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 100px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        @media screen and (max-width: 768px) {
            .article-hero {
                padding: 40px 0 28px;
            }
            .article-hero h1 {
                font-size: 1.6rem;
            }
            .article-hero .meta {
                gap: 12px;
                font-size: 0.8rem;
            }
        }

        /* ===== Article Body ===== */
        .article-main {
            padding: 48px 0 60px;
        }
        .article-content {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px 48px;
        }
        .article-content .content-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text);
        }
        .article-content .content-body p {
            margin-bottom: 1.2em;
        }
        .article-content .content-body h2,
        .article-content .content-body h3 {
            margin-top: 1.4em;
            margin-bottom: 0.6em;
            font-weight: 700;
            color: var(--text);
        }
        .article-content .content-body h2 { font-size: 1.5rem; }
        .article-content .content-body h3 { font-size: 1.2rem; }
        .article-content .content-body ul,
        .article-content .content-body ol {
            margin: 0 0 1.2em 1.6em;
        }
        .article-content .content-body li {
            margin-bottom: 0.4em;
        }
        .article-content .content-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-content .content-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 12px 20px;
            margin: 1.2em 0;
            background: var(--primary-light);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: normal;
        }
        .article-content .content-body img {
            border-radius: var(--radius-sm);
            margin: 1.2em auto;
            box-shadow: var(--shadow);
        }
        .article-content .content-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2em 0;
            font-size: 0.95rem;
        }
        .article-content .content-body th,
        .article-content .content-body td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }
        .article-content .content-body th {
            background: var(--primary-light);
            font-weight: 600;
            color: var(--text);
        }

        .article-not-found {
            text-align: center;
            padding: 60px 20px;
        }
        .article-not-found i {
            font-size: 3.5rem;
            color: var(--text-light);
            margin-bottom: 20px;
            display: block;
        }
        .article-not-found h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .article-not-found .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 100px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }
        .article-not-found .btn-home:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(13, 110, 253, 0.25);
        }

        @media screen and (max-width: 768px) {
            .article-content {
                padding: 24px 20px;
            }
            .article-content .content-body {
                font-size: 1rem;
            }
        }

        /* ===== Article Sidebar / Related ===== */
        .article-sidebar {
            margin-top: 40px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px 32px;
            margin-bottom: 24px;
        }
        .sidebar-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i {
            color: var(--primary);
            font-size: 1rem;
        }
        .sidebar-card ul li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border);
        }
        .sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .sidebar-card ul li a {
            font-size: 0.9rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
        }
        .sidebar-card ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .sidebar-card ul li a i {
            font-size: 0.75rem;
            color: var(--primary);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 100px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 500;
            transition: all var(--transition);
        }
        .tag-cloud a:hover {
            background: var(--primary);
            color: #fff;
        }

        @media screen and (max-width: 768px) {
            .sidebar-card {
                padding: 20px;
            }
        }

        /* ===== Related Posts ===== */
        .related-section {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 36px 40px;
            margin-top: 32px;
        }
        .related-section h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-section h3 i {
            color: var(--primary);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 20px;
        }
        .related-card {
            padding: 20px;
            border-radius: var(--radius-sm);
            background: var(--bg);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .related-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .related-card .r-cat {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .related-card h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .related-card h4 a {
            color: var(--text);
        }
        .related-card h4 a:hover {
            color: var(--primary);
        }
        .related-card .r-date {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        @media screen and (max-width: 640px) {
            .related-section {
                padding: 24px 20px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== CTA ===== */
        .article-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            border-radius: var(--radius);
            padding: 40px 48px;
            margin-top: 40px;
            text-align: center;
            color: #fff;
        }
        .article-cta h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .article-cta p {
            font-size: 1rem;
            opacity: 0.9;
            margin-bottom: 20px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .article-cta .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 100px;
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }
        .article-cta .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
            color: var(--primary-dark);
        }

        @media screen and (max-width: 640px) {
            .article-cta {
                padding: 28px 20px;
            }
            .article-cta h3 {
                font-size: 1.2rem;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-white);
            padding: 56px 0 32px;
            margin-top: 60px;
        }
        .site-footer .site-logo {
            color: #fff !important;
            margin-bottom: 12px;
        }
        .site-footer .site-logo i {
            color: var(--secondary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            max-width: 320px;
        }
        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.65);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .footer-col ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        @media screen and (max-width: 868px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media screen and (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-1 { margin-top: 16px; }
        .mt-2 { margin-top: 32px; }
        .mb-1 { margin-bottom: 16px; }
        .mb-2 { margin-bottom: 32px; }
        .gap-1 { gap: 16px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

        @media screen and (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ===== Focus / Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0a7e8c;
            --primary-dark: #065a65;
            --primary-light: #e0f2f5;
            --primary-gradient: linear-gradient(135deg, #0a7e8c 0%, #0b9baa 100%);
            --accent: #f5a623;
            --accent-dark: #d48d1a;
            --accent-light: #fef3e0;
            --bg-body: #f7fafc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #1a2a3a;
            --text-primary: #1a2a3a;
            --text-secondary: #4a5a6a;
            --text-muted: #8a9aaa;
            --text-light: #ffffff;
            --border-color: #e2e8f0;
            --border-light: #f0f4f8;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.10);
            --shadow-hover: 0 8px 30px rgba(0, 126, 140, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 32px;
            --space-lg: 64px;
            --space-xl: 96px;
        }

        /* ===== 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-family);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text-primary);
            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);
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

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

        ul,
        ol {
            list-style: none;
        }

        /* ===== Container ===== */
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--space-sm);
            width: 100%;
        }

        @media screen and (min-width: 640px) {
            .container-custom {
                padding: 0 24px;
            }
        }

        @media screen and (min-width: 1024px) {
            .container-custom {
                padding: 0 32px;
            }
        }

        /* ===== 悬浮胶囊导航 ===== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 32px);
            max-width: var(--container-max);
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px) saturate(1.4);
            -webkit-backdrop-filter: blur(18px) saturate(1.4);
            border-radius: var(--radius-xl);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.6);
            z-index: 1000;
            padding: 0 8px;
            height: 60px;
            display: flex;
            align-items: center;
            transition: var(--transition);
        }

        .site-header.scrolled {
            top: 8px;
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 6px 32px rgba(0, 0, 0, 0.10);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 0 12px;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.3px;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .site-logo i {
            font-size: 26px;
            color: var(--accent);
            transition: var(--transition);
        }

        .site-logo:hover {
            color: var(--primary-dark);
            transform: scale(1.02);
        }

        .site-logo:hover i {
            transform: rotate(-8deg) scale(1.1);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-primary);
            cursor: pointer;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-list li a {
            display: block;
            padding: 8px 18px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 40px;
            transition: var(--transition);
            letter-spacing: 0.2px;
            position: relative;
        }

        .nav-list li a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-list li a.active {
            color: var(--text-light);
            background: var(--primary-gradient);
            box-shadow: 0 4px 12px rgba(10, 126, 140, 0.30);
        }

        .nav-list li a.active:hover {
            color: var(--text-light);
            background: var(--primary-gradient);
            box-shadow: 0 6px 20px rgba(10, 126, 140, 0.40);
            transform: translateY(-1px);
        }

        /* ===== 移动端导航 ===== */
        @media screen and (max-width: 820px) {
            .site-header {
                top: 12px;
                border-radius: var(--radius-lg);
                padding: 0 4px;
                height: 56px;
            }

            .header-inner {
                padding: 0 8px;
            }

            .site-logo {
                font-size: 19px;
            }

            .site-logo i {
                font-size: 22px;
            }

            .nav-toggle {
                display: block;
            }

            .nav-list {
                position: fixed;
                top: 68px;
                left: 16px;
                right: 16px;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(18px);
                -webkit-backdrop-filter: blur(18px);
                border-radius: var(--radius-lg);
                flex-direction: column;
                padding: 12px 8px;
                gap: 4px;
                box-shadow: 0 12px 48px rgba(0, 0, 0, 0.15);
                border: 1px solid var(--border-color);
                opacity: 0;
                visibility: hidden;
                transform: translateY(-12px) scale(0.96);
                transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                pointer-events: none;
                z-index: 999;
            }

            .nav-list.open {
                opacity: 1;
                visibility: visible;
                transform: translateY(0) scale(1);
                pointer-events: auto;
            }

            .nav-list li a {
                width: 100%;
                padding: 12px 20px;
                font-size: 15px;
                border-radius: var(--radius-md);
                text-align: center;
            }

            .nav-list li a.active {
                background: var(--primary-gradient);
                color: var(--text-light);
            }
        }

        @media screen and (max-width: 480px) {
            .site-header {
                top: 8px;
                width: calc(100% - 16px);
                height: 52px;
                border-radius: var(--radius-md);
            }

            .nav-list {
                top: 60px;
                left: 8px;
                right: 8px;
                border-radius: var(--radius-md);
            }

            .site-logo {
                font-size: 17px;
            }

            .site-logo i {
                font-size: 19px;
            }

            .nav-list li a {
                padding: 10px 16px;
                font-size: 14px;
            }
        }

        /* ===== Page Hero / 分类页标题区 ===== */
        .page-hero {
            background: var(--primary-gradient);
            padding: var(--space-lg) 0 var(--space-md);
            margin-top: -16px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -5%;
            width: 300px;
            height: 300px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero .container-custom {
            position: relative;
            z-index: 1;
        }

        .page-hero h1 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.25;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .page-hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.88);
            max-width: 680px;
            line-height: 1.7;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 16px 0 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            transition: var(--transition);
        }

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

        .breadcrumb span {
            color: rgba(255, 255, 255, 0.5);
        }

        @media screen and (max-width: 768px) {
            .page-hero {
                padding: var(--space-md) 0 var(--space-sm);
            }

            .page-hero h1 {
                font-size: 26px;
            }

            .page-hero p {
                font-size: 15px;
            }
        }

        @media screen and (max-width: 480px) {
            .page-hero h1 {
                font-size: 22px;
            }

            .page-hero p {
                font-size: 14px;
            }
        }

        /* ===== 板块通用 ===== */
        .section-block {
            padding: var(--space-lg) 0;
        }

        .section-block-alt {
            background: var(--bg-white);
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.3px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            margin-bottom: var(--space-md);
            max-width: 600px;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--space-md);
        }

        .section-header .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        @media screen and (max-width: 768px) {
            .section-block {
                padding: var(--space-md) 0;
            }

            .section-title {
                font-size: 22px;
            }

            .section-subtitle {
                font-size: 15px;
            }
        }

        /* ===== 平台简介板块 ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .intro-content h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .intro-content p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .intro-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .stat-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .stat-card .stat-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-card .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        @media screen and (max-width: 820px) {
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .intro-stats {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media screen and (max-width: 480px) {
            .intro-stats {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .stat-card {
                padding: 18px 16px;
            }

            .stat-card .stat-number {
                font-size: 26px;
            }
        }

        /* ===== 使用流程 ===== */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .flow-step {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            text-align: center;
            position: relative;
            transition: var(--transition);
        }

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

        .flow-step .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: var(--text-light);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
            box-shadow: 0 4px 12px rgba(10, 126, 140, 0.25);
        }

        .flow-step h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .flow-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        @media screen and (max-width: 820px) {
            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media screen and (max-width: 480px) {
            .flow-steps {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .flow-step {
                padding: 20px 16px;
            }

            .flow-step .step-number {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
        }

        /* ===== 功能特点 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .feature-card .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            color: var(--primary);
            font-size: 24px;
            margin-bottom: 16px;
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            background: var(--primary-gradient);
            color: var(--text-light);
            transform: scale(1.05);
        }

        .feature-card h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        @media screen and (max-width: 820px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media screen and (max-width: 480px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .feature-card {
                padding: 20px 16px;
            }
        }

        /* ===== 操作指南 ===== */
        .guide-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .guide-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }

        .guide-item:hover {
            box-shadow: var(--shadow-md);
        }

        .guide-item-header {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 24px;
            cursor: pointer;
            user-select: none;
            transition: var(--transition);
        }

        .guide-item-header:hover {
            background: var(--primary-light);
        }

        .guide-item-header .guide-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .guide-item.active .guide-icon {
            background: var(--primary-gradient);
            color: var(--text-light);
        }

        .guide-item-header h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            flex: 1;
        }

        .guide-item-header .guide-toggle {
            font-size: 18px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .guide-item.active .guide-toggle {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .guide-item-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 24px;
        }

        .guide-item.active .guide-item-body {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        .guide-item-body p {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .guide-item-body ul {
            margin-top: 8px;
            padding-left: 20px;
        }

        .guide-item-body ul li {
            list-style: disc;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 2px;
        }

        @media screen and (max-width: 768px) {
            .guide-item-header {
                padding: 14px 16px;
            }

            .guide-item-header h4 {
                font-size: 15px;
            }

            .guide-item-body {
                padding: 0 16px;
            }

            .guide-item.active .guide-item-body {
                padding: 0 16px 16px;
            }
        }

        /* ===== 数据统计 ===== */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .data-card .data-icon {
            font-size: 32px;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .data-card .data-number {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.2;
        }

        .data-card .data-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        @media screen and (max-width: 820px) {
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media screen and (max-width: 480px) {
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .data-card {
                padding: 18px 12px;
            }

            .data-card .data-number {
                font-size: 24px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 24px;
            cursor: pointer;
            user-select: none;
            transition: var(--transition);
            font-size: 15.5px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .faq-question:hover {
            background: var(--primary-light);
        }

        .faq-question .faq-toggle {
            margin-left: auto;
            font-size: 18px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .faq-item.active .faq-toggle {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        @media screen and (max-width: 768px) {
            .faq-question {
                padding: 14px 16px;
                font-size: 14.5px;
            }

            .faq-answer {
                padding: 0 16px;
            }

            .faq-item.active .faq-answer {
                padding: 0 16px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary-gradient);
            padding: var(--space-lg) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto var(--space-md);
            line-height: 1.7;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--text-light);
            color: var(--primary);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
        }

        .btn-primary:hover {
            background: var(--bg-white);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--text-light);
            border: 2px solid rgba(255, 255, 255, 0.6);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--text-light);
            transform: translateY(-2px);
        }

        @media screen and (max-width: 768px) {
            .cta-section h2 {
                font-size: 24px;
            }

            .cta-section p {
                font-size: 14.5px;
            }

            .btn {
                padding: 12px 24px;
                font-size: 14px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            padding: var(--space-lg) 0 var(--space-md);
            color: rgba(255, 255, 255, 0.75);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: var(--space-md);
        }

        .footer-brand .site-logo {
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .footer-brand .site-logo i {
            color: var(--accent);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 280px;
            margin-top: 8px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 16px;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--text-light);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: var(--space-sm);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--text-light);
        }

        @media screen and (max-width: 820px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media screen and (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 标签 / 徽章 ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 12px;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
            letter-spacing: 0.3px;
        }

        .badge-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }

        /* ===== 分隔线 ===== */
        .divider {
            width: 60px;
            height: 4px;
            border-radius: 4px;
            background: var(--primary-gradient);
            margin: 12px auto 20px;
        }

        .divider-left {
            margin: 12px 0 20px;
        }

        /* ===== 额外响应式微调 ===== */
        @media screen and (max-width: 1024px) {
            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
            }

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

        @media screen and (max-width: 640px) {
            :root {
                --header-height: 64px;
            }

            body {
                padding-top: 64px;
            }

            .page-hero h1 {
                font-size: 24px;
            }

            .section-title {
                font-size: 20px;
            }

            .container-custom {
                padding: 0 12px;
            }
        }

        /* ===== Foundation 覆盖 ===== */
        .grid-container {
            max-width: var(--container-max);
            padding-left: 16px;
            padding-right: 16px;
        }

        @media screen and (min-width: 640px) {
            .grid-container {
                padding-left: 24px;
                padding-right: 24px;
            }
        }

        /* 修复 Foundation 默认按钮样式与自定义按钮冲突 */
        .button {
            transition: var(--transition);
        }

        /* 确保 Foundation 网格在自定义布局中正常工作 */
        .grid-x>.cell {
            padding: 0 8px;
        }

        @media screen and (max-width: 640px) {
            .grid-x>.cell {
                padding: 0 4px;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a73e8;
            --primary-dark: #0d47a1;
            --primary-light: #e8f0fe;
            --secondary: #ff6f00;
            --secondary-light: #fff3e0;
            --accent: #00bcd4;
            --bg-body: #f8fafc;
            --bg-white: #ffffff;
            --bg-light: #f0f4f8;
            --bg-dark: #0b1a2e;
            --text-primary: #1a2332;
            --text-secondary: #4a5568;
            --text-light: #8899aa;
            --text-white: #ffffff;
            --border-color: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础重置 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary-dark);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            transition: var(--transition);
        }
        button:focus-visible,
        input:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== 容器 ===== */
        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ===== Header / 导航 (悬浮胶囊) ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            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(255, 255, 255, 0.3);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
            transition: var(--transition);
        }
        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
            transition: var(--transition);
        }
        .site-logo i {
            color: var(--secondary);
            font-size: 1.8rem;
            transition: var(--transition);
        }
        .site-logo:hover {
            color: var(--primary);
            transform: scale(1.02);
        }
        .site-logo:hover i {
            transform: rotate(-8deg) scale(1.1);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-light);
            color: var(--primary);
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-list li a {
            display: block;
            padding: 8px 20px;
            border-radius: 40px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-list li a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-list li a.active {
            color: var(--text-white);
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(26, 115, 232, 0.35);
        }
        .nav-list li a.active:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(26, 115, 232, 0.45);
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-list {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 12px 20px;
                width: 100%;
                border-radius: var(--radius-md);
            }
        }
        @media (max-width: 520px) {
            .header-inner {
                padding: 0 12px;
            }
            .site-logo {
                font-size: 1.3rem;
            }
            .site-logo i {
                font-size: 1.4rem;
            }
        }

        /* ===== 页面标题区 ===== */
        .page-hero {
            background: linear-gradient(135deg, #0b1a2e 0%, #1a3a5c 50%, #0d47a1 100%);
            padding: 80px 0 60px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 40%, rgba(0, 188, 212, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 70% 60%, rgba(255, 111, 0, 0.06) 0%, transparent 50%);
            animation: heroGlow 12s ease-in-out infinite alternate;
        }
        @keyframes heroGlow {
            0% {
                transform: translate(0, 0) scale(1);
            }
            100% {
                transform: translate(4%, 4%) scale(1.1);
            }
        }
        .page-hero .container-custom {
            position: relative;
            z-index: 1;
        }
        .page-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .page-hero h1 i {
            color: var(--secondary);
            margin-right: 12px;
        }
        .page-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }
        .page-hero .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }
        .page-hero .hero-tags span {
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }
        .page-hero .hero-tags span:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .page-hero {
                padding: 60px 0 40px;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.6rem;
            }
        }

        /* ===== 通用板块 ===== */
        .section-block {
            padding: 80px 0;
        }
        .section-block-alt {
            background: var(--bg-light);
        }
        .section-block-white {
            background: var(--bg-white);
        }
        .section-title {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }
        .section-title h2 i {
            color: var(--secondary);
            margin-right: 10px;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.8;
        }
        .section-title .title-bar {
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 16px auto 0;
        }
        @media (max-width: 768px) {
            .section-block {
                padding: 56px 0;
            }
            .section-title h2 {
                font-size: 1.7rem;
            }
            .section-title p {
                font-size: 0.95rem;
            }
            .section-title {
                margin-bottom: 40px;
            }
        }
        @media (max-width: 520px) {
            .section-block {
                padding: 40px 0;
            }
            .section-title h2 {
                font-size: 1.4rem;
            }
        }

        /* ===== 卡片通用 ===== */
        .card-modern {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 32px;
            transition: var(--transition);
            border: 1px solid var(--border-light);
            height: 100%;
        }
        .card-modern:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }
        .card-modern .card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--text-white);
            margin-bottom: 20px;
            background: var(--primary);
        }
        .card-modern .card-icon.icon-secondary {
            background: var(--secondary);
        }
        .card-modern .card-icon.icon-accent {
            background: var(--accent);
        }
        .card-modern h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .card-modern p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .card-modern .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            padding: 2px 12px;
            border-radius: 40px;
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 500;
            margin-top: 12px;
        }

        /* ===== 步骤流程 ===== */
        .step-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .step-item {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
        }
        .step-item .step-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 16px;
            margin-top: 8px;
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .step-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }
        @media (max-width: 768px) {
            .step-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .step-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ===== 常见问题 FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            transition: var(--transition);
            user-select: none;
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 1.2rem;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question .faq-toggle {
            font-size: 1.1rem;
            color: var(--text-light);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question .faq-toggle {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .faq-answer p {
            margin-bottom: 8px;
        }
        .faq-answer p:last-child {
            margin-bottom: 0;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-item .faq-question .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        @media (max-width: 520px) {
            .faq-question {
                padding: 16px 18px;
                font-size: 0.92rem;
            }
            .faq-answer {
                padding: 0 18px;
                font-size: 0.88rem;
            }
            .faq-item.active .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* ===== CTA 区块 ===== */
        .cta-block {
            background: linear-gradient(135deg, #0d47a1 0%, #1a73e8 50%, #00bcd4 100%);
            padding: 72px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -30%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }
        .cta-block::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 111, 0, 0.06);
            pointer-events: none;
        }
        .cta-block .container-custom {
            position: relative;
            z-index: 1;
        }
        .cta-block h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cta-block p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .cta-block .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            background: var(--text-white);
            color: var(--primary-dark);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
            color: var(--primary-dark);
            background: var(--bg-white);
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.4);
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
            transform: translateY(-3px);
            color: var(--text-white);
        }
        @media (max-width: 768px) {
            .cta-block {
                padding: 56px 0;
            }
            .cta-block h2 {
                font-size: 1.6rem;
            }
            .cta-block p {
                font-size: 0.95rem;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                padding: 12px 28px;
                font-size: 0.9rem;
            }
        }
        @media (max-width: 520px) {
            .cta-block h2 {
                font-size: 1.3rem;
            }
        }

        /* ===== 标签列表 ===== */
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }
        .tag-list .tag-item {
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 500;
            background: var(--bg-white);
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            cursor: default;
        }
        .tag-list .tag-item:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .tag-list .tag-item i {
            margin-right: 6px;
            font-size: 0.75rem;
            color: var(--primary);
        }

        /* ===== 数据统计条 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .stat-item .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 6px;
        }
        .stat-item .stat-icon {
            font-size: 1.4rem;
            color: var(--secondary);
            margin-bottom: 8px;
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-item .stat-number {
                font-size: 1.6rem;
            }
        }

        /* ===== 内容网格 ===== */
        .content-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 28px;
        }
        @media (max-width: 520px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ===== 图文区块 ===== */
        .media-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .media-row .media-content h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .media-row .media-content p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .media-row .media-content ul {
            margin-top: 12px;
        }
        .media-row .media-content ul li {
            padding: 6px 0;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-secondary);
        }
        .media-row .media-content ul li i {
            color: var(--primary);
            margin-top: 4px;
            flex-shrink: 0;
        }
        .media-row .media-visual {
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            padding: 40px;
            text-align: center;
            min-height: 280px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .media-row .media-visual i {
            font-size: 3.6rem;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .media-row .media-visual .visual-label {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
        }
        .media-row .media-visual .visual-desc {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .media-row {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .media-row .media-content h3 {
                font-size: 1.3rem;
            }
            .media-row .media-visual {
                min-height: 200px;
                padding: 28px;
            }
            .media-row .media-visual i {
                font-size: 2.6rem;
            }
        }
        @media (max-width: 520px) {
            .media-row {
                gap: 24px;
            }
            .media-row .media-content h3 {
                font-size: 1.15rem;
            }
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-bar {
            padding: 12px 0;
            background: var(--bg-light);
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb-bar .breadcrumb-list {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-light);
        }
        .breadcrumb-bar .breadcrumb-list a {
            color: var(--text-secondary);
        }
        .breadcrumb-bar .breadcrumb-list a:hover {
            color: var(--primary);
        }
        .breadcrumb-bar .breadcrumb-list span {
            color: var(--text-light);
        }
        .breadcrumb-bar .breadcrumb-list .current {
            color: var(--text-primary);
            font-weight: 600;
        }
        .breadcrumb-bar .breadcrumb-list i {
            font-size: 0.7rem;
            color: var(--text-light);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 64px 0 32px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .site-footer .footer-brand .site-logo {
            color: var(--text-white);
            margin-bottom: 12px;
            display: inline-flex;
        }
        .site-footer .footer-brand .site-logo i {
            color: var(--secondary);
        }
        .site-footer .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
            line-height: 1.7;
            margin-top: 12px;
        }
        .site-footer .footer-col h5 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 10px;
        }
        .site-footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--text-white);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--text-white);
        }
        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .site-footer .footer-brand {
                grid-column: 1 / -1;
            }
            .site-footer .footer-brand p {
                max-width: 100%;
            }
        }
        @media (max-width: 520px) {
            .site-footer {
                padding: 40px 0 24px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 8px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .mt-4 {
            margin-top: 32px;
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }
        .gap-1 {
            gap: 8px;
        }
        .gap-2 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
        }

        /* ===== Foundation 覆盖 ===== */
        .grid-container {
            max-width: var(--max-width);
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .grid-container {
                padding: 0 16px;
            }
        }
        .cell {
            margin-bottom: 0;
        }
        .grid-x>.cell {
            padding: 0;
        }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a5276;
            --primary-light: #2e86c1;
            --primary-dark: #0e2f44;
            --secondary: #e67e22;
            --secondary-light: #f39c12;
            --accent: #27ae60;
            --bg-light: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #0e2f44;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #6c757d;
            --text-white: #ffffff;
            --border-color: #e8ecf1;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --gap-section: 5rem;
            --gap-card: 2rem;
        }

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

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

        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }

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

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

        ul,
        ol {
            list-style: none;
        }

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

        button {
            cursor: pointer;
        }

        /* ===== 容器 ===== */
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }

        .site-header:hover {
            background: rgba(255, 255, 255, 0.98);
        }

        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
            transition: var(--transition);
        }

        .site-logo i {
            color: var(--secondary);
            font-size: 1.6rem;
            transition: var(--transition);
        }

        .site-logo:hover {
            color: var(--primary);
            transform: scale(1.02);
        }

        .site-logo:hover i {
            transform: rotate(-8deg) scale(1.1);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: var(--bg-light);
            color: var(--primary);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-list li a {
            display: block;
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }

        .nav-list li a:hover {
            color: var(--primary);
            background: rgba(26, 82, 118, 0.06);
        }

        .nav-list li a.active {
            color: var(--text-white);
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(26, 82, 118, 0.25);
        }

        .nav-list li a.active:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(26, 82, 118, 0.35);
        }

        /* ===== 页面横幅 ===== */
        .page-banner {
            padding: 4rem 0 3rem;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(230, 126, 34, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-banner .container-custom {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 1rem;
            line-height: 1.2;
            letter-spacing: -0.5px;
        }

        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(4px);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 1.2rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        /* ===== 板块通用 ===== */
        .section-block {
            padding: var(--gap-section) 0;
        }

        .section-block.bg-white {
            background: var(--bg-white);
        }

        .section-block.bg-light {
            background: var(--bg-light);
        }

        .section-block.bg-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
            line-height: 1.3;
            letter-spacing: -0.3px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto 2.5rem;
            line-height: 1.7;
        }

        .section-block.bg-dark .section-title {
            color: var(--text-white);
        }

        .section-block.bg-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        .text-center {
            text-align: center;
        }

        /* ===== 标签云 ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-bottom: 2rem;
        }

        .tag-item {
            display: inline-block;
            padding: 7px 20px;
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 500;
            background: var(--bg-white);
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            cursor: pointer;
        }

        .tag-item:hover {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(26, 82, 118, 0.18);
        }

        .tag-item.active {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(26, 82, 118, 0.2);
        }

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

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

        /* ===== 资讯卡片 ===== */
        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .news-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: linear-gradient(135deg, #e8ecf1, #d5dbe3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.8rem;
            color: var(--text-light);
            transition: var(--transition);
        }

        .news-card:hover .card-img {
            transform: scale(1.02);
        }

        .news-card .card-img i {
            opacity: 0.5;
        }

        .news-card .card-body {
            padding: 1.5rem 1.6rem 1.8rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-light);
            margin-bottom: 0.8rem;
        }

        .news-card .card-meta .badge {
            background: var(--secondary);
            color: var(--text-white);
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .news-card .card-meta .badge.green {
            background: var(--accent);
        }

        .news-card .card-meta .badge.blue {
            background: var(--primary-light);
        }

        .news-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
            line-height: 1.4;
            transition: var(--transition);
        }

        .news-card:hover h3 {
            color: var(--primary);
        }

        .news-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 1rem;
        }

        .news-card .card-link {
            font-weight: 600;
            color: var(--primary-light);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
            margin-top: auto;
        }

        .news-card .card-link i {
            font-size: 0.8rem;
            transition: var(--transition);
        }

        .news-card .card-link:hover {
            color: var(--primary-dark);
            gap: 10px;
        }

        /* ===== 置顶文章 ===== */
        .featured-article {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .featured-article:hover {
            box-shadow: var(--shadow-lg);
        }

        .featured-article .featured-img {
            width: 100%;
            height: 100%;
            min-height: 320px;
            background: linear-gradient(135deg, #d5dbe3, #c0c9d4);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 4rem;
            color: var(--text-light);
        }

        .featured-article .featured-img i {
            opacity: 0.4;
        }

        .featured-article .featured-body {
            padding: 2.5rem 2.5rem 2.5rem 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .featured-article .featured-body .featured-tag {
            display: inline-block;
            background: var(--secondary);
            color: var(--text-white);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 1rem;
            align-self: flex-start;
        }

        .featured-article .featured-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
            line-height: 1.3;
        }

        .featured-article .featured-body p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }

        .featured-article .featured-body .btn {
            align-self: flex-start;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 30px;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--text-white);
            box-shadow: 0 4px 14px rgba(26, 82, 118, 0.2);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(26, 82, 118, 0.3);
        }

        .btn-secondary {
            background: var(--secondary);
            color: var(--text-white);
            box-shadow: 0 4px 14px rgba(230, 126, 34, 0.2);
        }

        .btn-secondary:hover {
            background: #d35400;
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 126, 34, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.5);
        }

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

        .btn-sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }

        .btn-lg {
            padding: 16px 40px;
            font-size: 1.05rem;
        }

        /* ===== 活动公告 ===== */
        .announcement-list {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }

        .announcement-item {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            background: var(--bg-white);
            padding: 1.2rem 1.8rem;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .announcement-item:hover {
            transform: translateX(6px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }

        .announcement-item .ann-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(26, 82, 118, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--primary);
            flex-shrink: 0;
        }

        .announcement-item .ann-icon.hot {
            background: rgba(230, 126, 34, 0.1);
            color: var(--secondary);
        }

        .announcement-item .ann-icon.new {
            background: rgba(39, 174, 96, 0.1);
            color: var(--accent);
        }

        .announcement-item .ann-content {
            flex: 1;
        }

        .announcement-item .ann-content h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.2rem;
        }

        .announcement-item .ann-content p {
            font-size: 0.88rem;
            color: var(--text-light);
        }

        .announcement-item .ann-date {
            font-size: 0.82rem;
            color: var(--text-light);
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* ===== CTA区块 ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            padding: 4rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            top: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-block::after {
            content: '';
            position: absolute;
            bottom: -20%;
            right: -5%;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(230, 126, 34, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-block .container-custom {
            position: relative;
            z-index: 1;
        }

        .cta-block h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.8rem;
        }

        .cta-block p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto 2rem;
        }

        .cta-block .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== 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-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 1.6rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            transition: var(--transition);
            gap: 12px;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question i {
            font-size: 0.9rem;
            color: var(--text-light);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 1.6rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 1.6rem 1.3rem;
        }

        .section-block.bg-dark .faq-item {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.08);
        }

        .section-block.bg-dark .faq-question {
            color: var(--text-white);
        }

        .section-block.bg-dark .faq-question:hover {
            color: var(--secondary-light);
        }

        .section-block.bg-dark .faq-answer {
            color: rgba(255, 255, 255, 0.75);
        }

        .section-block.bg-dark .faq-question i {
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== 分页 ===== */
        .pagination-nav {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 2.5rem;
        }

        .pagination-nav a,
        .pagination-nav span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .pagination-nav a:hover {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 14px rgba(26, 82, 118, 0.2);
        }

        .pagination-nav .current {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(26, 82, 118, 0.2);
        }

        .pagination-nav .next,
        .pagination-nav .prev {
            width: auto;
            padding: 0 18px;
            border-radius: 50px;
        }

        /* ===== 订阅表单 ===== */
        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .subscribe-form input[type="email"] {
            flex: 1;
            min-width: 220px;
            padding: 14px 20px;
            border-radius: 50px;
            border: 2px solid var(--border-color);
            background: var(--bg-white);
            font-size: 0.95rem;
            color: var(--text-primary);
            transition: var(--transition);
        }

        .subscribe-form input[type="email"]:focus {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 4px rgba(26, 82, 118, 0.08);
        }

        .subscribe-form input[type="email"]::placeholder {
            color: var(--text-light);
        }

        .section-block.bg-dark .subscribe-form input[type="email"] {
            border-color: rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-white);
        }

        .section-block.bg-dark .subscribe-form input[type="email"]:focus {
            border-color: var(--secondary-light);
            box-shadow: 0 0 0 4px rgba(230, 126, 34, 0.15);
        }

        .section-block.bg-dark .subscribe-form input[type="email"]::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 4rem 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .site-logo {
            color: var(--text-white);
            font-size: 1.4rem;
            margin-bottom: 1rem;
            display: inline-flex;
        }

        .footer-brand .site-logo i {
            color: var(--secondary-light);
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }

        .footer-col h5 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 1.2rem;
            letter-spacing: 0.5px;
        }

        .footer-col ul li {
            margin-bottom: 0.6rem;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-col ul li a:hover {
            color: var(--secondary-light);
            transform: translateX(4px);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.5rem 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--secondary-light);
        }

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

            .featured-article .featured-body {
                padding: 2rem 2rem 2rem 0;
            }

            .featured-article .featured-body h2 {
                font-size: 1.3rem;
            }

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

            .page-banner h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --gap-section: 3.5rem;
            }

            .nav-toggle {
                display: block;
            }

            .nav-list {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
            }

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

            .nav-list li a {
                padding: 12px 18px;
                border-radius: var(--radius-sm);
                width: 100%;
            }

            .card-grid {
                grid-template-columns: 1fr;
            }

            .card-grid.grid-2 {
                grid-template-columns: 1fr;
            }

            .featured-article {
                grid-template-columns: 1fr;
            }

            .featured-article .featured-img {
                min-height: 220px;
            }

            .featured-article .featured-body {
                padding: 1.5rem 1.5rem 2rem;
            }

            .featured-article .featured-body h2 {
                font-size: 1.2rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.8rem;
            }

            .page-banner h1 {
                font-size: 1.8rem;
            }

            .page-banner p {
                font-size: 1rem;
            }

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

            .announcement-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.6rem;
                padding: 1rem 1.2rem;
            }

            .announcement-item .ann-date {
                align-self: flex-end;
            }

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

            .cta-block .btn-group {
                flex-direction: column;
                align-items: center;
            }

            .subscribe-form {
                flex-direction: column;
                align-items: center;
            }

            .subscribe-form input[type="email"] {
                width: 100%;
                min-width: unset;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                height: 60px;
                padding: 0 16px;
            }

            .site-logo {
                font-size: 1.2rem;
            }

            .page-banner {
                padding: 2.5rem 0 2rem;
            }

            .page-banner h1 {
                font-size: 1.5rem;
            }

            .section-block {
                padding: 2.5rem 0;
            }

            .tag-cloud {
                gap: 6px;
            }

            .tag-item {
                padding: 5px 14px;
                font-size: 0.8rem;
            }

            .news-card .card-body {
                padding: 1.2rem 1.2rem 1.5rem;
            }

            .pagination-nav a,
            .pagination-nav span {
                width: 38px;
                height: 38px;
                font-size: 0.82rem;
            }

            .pagination-nav .next,
            .pagination-nav .prev {
                width: auto;
                padding: 0 14px;
            }
        }

        /* ===== 小工具 ===== */
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .gap-1 {
            gap: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .text-muted {
            color: var(--text-light);
        }
        .text-small {
            font-size: 0.85rem;
        }