/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f1a3e;
            --primary-light: #1e2d5e;
            --accent: #d4a32a;
            --accent-hover: #b88a1e;
            --accent-light: #f5e8c8;
            --bg: #ffffff;
            --bg-alt: #f4f6fb;
            --bg-dark: #0b132b;
            --text: #1a1a2e;
            --text-light: #6b7a8f;
            --text-muted: #9aabbf;
            --border: #e2e7ee;
            --shadow-sm: 0 1px 4px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.07);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.10);
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
            --nav-height: 72px;
            --container: 1200px;
            --gap: 32px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            font-size: 16px; line-height: 1.7; color: var(--text); background: var(--bg);
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 600; color: var(--primary); }
        h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
        h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); margin-bottom: 16px; }
        h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
        p { margin-bottom: 16px; color: var(--text-light); }
        .container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-alt); }
        .section-dark { background: var(--bg-dark); color: #fff; }
        .section-title { text-align: center; margin-bottom: 56px; }
        .section-title h2 { position: relative; display: inline-block; }
        .section-title h2::after {
            content: ''; display: block; width: 48px; height: 3px; background: var(--accent);
            margin: 12px auto 0; border-radius: 2px;
        }
        .section-title p { max-width: 600px; margin: 8px auto 0; color: var(--text-light); font-size: 1.05rem; }

        /* ===== 导航 ===== */
        header {
            position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
            background: rgba(255,255,255,0.96); backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border); height: var(--nav-height);
            transition: box-shadow var(--transition);
        }
        header.scrolled { box-shadow: var(--shadow-md); }
        .nav-wrap {
            display: flex; align-items: center; justify-content: space-between;
            height: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px;
        }
        .logo {
            font-size: 1.5rem; font-weight: 700; color: var(--primary); letter-spacing: 0.5px;
            display: flex; align-items: center; gap: 8px;
        }
        .logo i { color: var(--accent); font-size: 1.3rem; }
        .logo span { background: linear-gradient(135deg, var(--primary), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
        .nav-links { display: flex; align-items: center; gap: 40px; }
        .nav-links a {
            font-size: 0.95rem; font-weight: 500; color: var(--text-light); letter-spacing: 0.3px;
            position: relative; padding: 4px 0; transition: color var(--transition);
        }
        .nav-links a::after {
            content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
            background: var(--accent); border-radius: 2px; transition: width var(--transition);
        }
        .nav-links a:hover { color: var(--primary); }
        .nav-links a:hover::after { width: 100%; }
        .nav-links a.active { color: var(--primary); font-weight: 600; }
        .nav-links a.active::after { width: 100%; }
        .nav-toggle { display: none; font-size: 1.4rem; color: var(--primary); cursor: pointer; background: none; border: none; padding: 4px; }

        /* ===== Hero ===== */
        .hero {
            min-height: 90vh; display: flex; align-items: center; position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            margin-top: var(--nav-height); overflow: hidden;
        }
        .hero::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(15,26,62,0.88) 0%, rgba(15,26,62,0.60) 60%, rgba(212,163,42,0.15) 100%);
        }
        .hero-content { position: relative; z-index: 2; max-width: 720px; padding: 80px 0; }
        .hero-content h1 { color: #fff; font-weight: 700; letter-spacing: 1px; line-height: 1.15; }
        .hero-content h1 span { color: var(--accent); }
        .hero-content p { color: rgba(255,255,255,0.85); font-size: 1.15rem; max-width: 560px; margin: 24px 0 36px; line-height: 1.7; }
        .hero-badges { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }
        .hero-badges span {
            background: rgba(255,255,255,0.12); backdrop-filter: blur(4px);
            color: #fff; font-size: 0.85rem; padding: 6px 16px; border-radius: 20px;
            border: 1px solid rgba(255,255,255,0.15);
        }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .btn {
            display: inline-flex; align-items: center; gap: 10px; padding: 14px 32px;
            border-radius: var(--radius-sm); font-weight: 600; font-size: 0.95rem;
            border: none; cursor: pointer; transition: all var(--transition);
            text-decoration: none; line-height: 1;
        }
        .btn-primary { background: var(--accent); color: var(--primary); }
        .btn-primary:hover { background: var(--accent-hover); color: var(--primary); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212,163,42,0.35); }
        .btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.5); }
        .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; color: #fff; transform: translateY(-2px); }
        .btn-lg { padding: 16px 40px; font-size: 1.05rem; }
        .hero-stats { display: flex; gap: 40px; margin-top: 48px; padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.15); }
        .hero-stat h3 { color: #fff; font-size: 1.8rem; font-weight: 700; }
        .hero-stat h3 i { color: var(--accent); margin-right: 6px; font-size: 1.4rem; }
        .hero-stat p { color: rgba(255,255,255,0.6); font-size: 0.9rem; margin: 0; }

        /* ===== About / 核心介绍 ===== */
        .about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
        .about-image { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
        .about-image img { width: 100%; height: 400px; object-fit: cover; border-radius: var(--radius); }
        .about-text h2 { margin-bottom: 20px; }
        .about-text p { font-size: 1.05rem; line-height: 1.8; margin-bottom: 20px; }
        .about-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
        .tag {
            display: inline-block; padding: 6px 16px; background: var(--accent-light);
            color: var(--primary); border-radius: 20px; font-size: 0.85rem; font-weight: 500;
        }

        /* ===== 分类入口 ===== */
        .category-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--gap); }
        .category-card {
            background: var(--bg); border-radius: var(--radius); padding: 32px 28px;
            box-shadow: var(--shadow-sm); border: 1px solid var(--border);
            transition: all var(--transition); text-align: center;
        }
        .category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
        .category-card .icon { font-size: 2.6rem; color: var(--accent); margin-bottom: 16px; }
        .category-card h3 { margin-bottom: 10px; }
        .category-card p { font-size: 0.95rem; margin-bottom: 16px; color: var(--text-light); }
        .category-card .btn-sm {
            display: inline-block; padding: 8px 20px; font-size: 0.85rem; font-weight: 600;
            background: transparent; color: var(--primary); border: 1px solid var(--border);
            border-radius: var(--radius-sm); transition: all var(--transition);
        }
        .category-card:hover .btn-sm { background: var(--accent); color: var(--primary); border-color: var(--accent); }

        /* ===== 数据统计 ===== */
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); text-align: center; }
        .stat-item { padding: 32px 16px; }
        .stat-item .num { font-size: 2.8rem; font-weight: 700; color: var(--accent); line-height: 1.2; }
        .stat-item .label { color: rgba(255,255,255,0.7); font-size: 0.95rem; margin-top: 8px; }

        /* ===== 最新资讯 (CMS列表) ===== */
        .news-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--gap); }
        .news-card {
            background: var(--bg); border-radius: var(--radius); overflow: hidden;
            box-shadow: var(--shadow-sm); border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .news-card .card-img { width: 100%; height: 200px; object-fit: cover; border-radius: 0; }
        .news-card .card-body { padding: 20px 24px 24px; }
        .news-card .card-meta { display: flex; gap: 16px; font-size: 0.82rem; color: var(--text-muted); margin-bottom: 10px; }
        .news-card .card-meta i { margin-right: 4px; }
        .news-card .card-cat {
            display: inline-block; padding: 2px 12px; background: var(--accent-light);
            color: var(--primary); border-radius: 12px; font-size: 0.75rem; font-weight: 500;
        }
        .news-card h3 { font-size: 1.1rem; margin-bottom: 8px; line-height: 1.4; }
        .news-card h3 a { color: var(--primary); }
        .news-card h3 a:hover { color: var(--accent); }
        .news-card p { font-size: 0.92rem; color: var(--text-light); margin-bottom: 0; }
        .news-empty { text-align: center; padding: 60px 20px; color: var(--text-muted); font-size: 1.05rem; grid-column: 1 / -1; }
        .news-empty i { font-size: 2.4rem; margin-bottom: 16px; color: var(--border); display: block; }

        /* ===== 流程 ===== */
        .flow-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--gap); position: relative; }
        .flow-step { text-align: center; padding: 32px 20px; position: relative; }
        .flow-step .step-num {
            width: 56px; height: 56px; border-radius: 50%; background: var(--accent);
            color: var(--primary); font-size: 1.4rem; font-weight: 700;
            display: flex; align-items: center; justify-content: center; margin: 0 auto 20px;
        }
        .flow-step h4 { margin-bottom: 8px; font-size: 1.1rem; }
        .flow-step p { font-size: 0.9rem; color: var(--text-light); margin: 0; }
        .flow-arrow { display: none; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            border-bottom: 1px solid var(--border); padding: 20px 0;
            cursor: pointer; transition: all var(--transition);
        }
        .faq-item:first-child { border-top: 1px solid var(--border); }
        .faq-q {
            display: flex; justify-content: space-between; align-items: center;
            font-weight: 600; font-size: 1.05rem; color: var(--primary);
        }
        .faq-q i { color: var(--accent); transition: transform var(--transition); font-size: 1.1rem; }
        .faq-item.open .faq-q i { transform: rotate(180deg); }
        .faq-a {
            max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-light); line-height: 1.7;
        }
        .faq-item.open .faq-a { max-height: 300px; padding-top: 14px; }

        /* ===== CTA ===== */
        .cta-wrap {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-lg); padding: 64px 48px; text-align: center;
            position: relative; overflow: hidden;
        }
        .cta-wrap::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08; pointer-events: none;
        }
        .cta-wrap h2 { color: #fff; margin-bottom: 12px; }
        .cta-wrap p { color: rgba(255,255,255,0.8); max-width: 500px; margin: 0 auto 28px; }
        .cta-wrap .btn-primary { background: #fff; color: var(--primary); }
        .cta-wrap .btn-primary:hover { background: var(--accent); color: var(--primary); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }

        /* ===== 页脚 ===== */
        footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.7); padding: 48px 0 0;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,0.08); }
        .footer-brand .logo { color: #fff; margin-bottom: 12px; }
        .footer-brand .logo span { -webkit-text-fill-color: #fff; }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.5); max-width: 300px; }
        .footer-col h4 { color: #fff; margin-bottom: 16px; font-size: 1rem; font-weight: 600; }
        .footer-col a { display: block; color: rgba(255,255,255,0.5); font-size: 0.9rem; padding: 4px 0; transition: color var(--transition); }
        .footer-col a:hover { color: var(--accent); }
        .footer-bottom { text-align: center; padding: 20px 0; font-size: 0.85rem; color: rgba(255,255,255,0.35); }
        .footer-bottom a { color: rgba(255,255,255,0.4); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .about-grid { grid-template-columns: 1fr; gap: 32px; }
            .about-image img { height: 300px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed; top: var(--nav-height); left: 0; width: 100%;
                background: rgba(255,255,255,0.98); backdrop-filter: blur(12px);
                flex-direction: column; gap: 0; padding: 16px 24px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-110%); opacity: 0;
                transition: all 0.35s ease; pointer-events: none;
            }
            .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .nav-links a { padding: 14px 0; width: 100%; border-bottom: 1px solid var(--border); }
            .nav-links a:last-child { border-bottom: none; }
            .nav-links a::after { display: none; }
            .nav-toggle { display: block; }
            .hero { min-height: 70vh; }
            .hero-content { padding: 60px 0; }
            .hero-stats { flex-wrap: wrap; gap: 24px; }
            .hero-stat { flex: 1 1 40%; }
            .section { padding: 56px 0; }
            .cta-wrap { padding: 40px 24px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-item .num { font-size: 2rem; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero-content h1 { font-size: 1.8rem; }
            .hero-content p { font-size: 1rem; }
            .btn-lg { padding: 12px 28px; font-size: 0.95rem; }
            .hero-stats { gap: 16px; }
            .hero-stat { flex: 1 1 100%; text-align: center; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .category-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .flow-grid { grid-template-columns: 1fr; }
            .section-title { margin-bottom: 32px; }
            .about-image img { height: 220px; }
        }

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

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --primary-dark: #0f2440;
            --accent: #e8b830;
            --accent-light: #f0d060;
            --accent-dark: #c9a020;
            --bg: #f8f9fb;
            --bg-alt: #ffffff;
            --bg-dark: #0f1a2e;
            --text: #1e2a3a;
            --text-light: #5a6a7a;
            --text-inverse: #ffffff;
            --border: #e2e6ed;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.10);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --container: 1200px;
            --nav-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--primary-dark);
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Navigation ===== */
        #header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: var(--nav-height);
            transition: box-shadow var(--transition);
        }
        #header.scrolled {
            box-shadow: 0 2px 30px rgba(0, 0, 0, 0.06);
        }
        .nav-wrap {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary-dark);
            font-size: 22px;
            font-weight: 700;
            letter-spacing: -0.3px;
        }
        .logo i {
            color: var(--accent);
            font-size: 26px;
        }
        .logo span {
            color: var(--primary-dark);
        }
        .logo:hover {
            color: var(--primary-dark);
            opacity: 0.9;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            color: var(--text);
            font-weight: 500;
            font-size: 15px;
            position: relative;
            transition: background var(--transition), color var(--transition);
        }
        .nav-links a:hover {
            background: rgba(26, 58, 92, 0.06);
            color: var(--primary);
        }
        .nav-links a.active {
            background: var(--primary);
            color: var(--text-inverse);
        }
        .nav-links a.active:hover {
            background: var(--primary-light);
        }
        .nav-toggle {
            display: none;
            font-size: 24px;
            color: var(--primary-dark);
            padding: 4px 8px;
            border-radius: 6px;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        /* ===== Banner / Hero (inner) ===== */
        .page-banner {
            padding: 140px 0 80px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url(/assets/images/backpic/back-2.png) center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 44px;
            color: var(--text-inverse);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-bottom: 20px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb span {
            color: rgba(255, 255, 255, 0.9);
        }

        /* ===== Section ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-inverse);
        }
        .section-title {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-title h2 {
            font-size: 34px;
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 12px auto 0;
        }
        .section-title p {
            color: var(--text-light);
            font-size: 17px;
            max-width: 560px;
            margin: 0 auto;
        }
        .section-dark .section-title h2 {
            color: var(--text-inverse);
        }
        .section-dark .section-title p {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== Card ===== */
        .card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 24px 28px 28px;
        }
        .card-body h3 {
            font-size: 20px;
            margin-bottom: 8px;
            color: var(--primary-dark);
        }
        .card-body p {
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.7;
        }
        .card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(232, 184, 48, 0.15);
            color: var(--accent-dark);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }

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

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 184, 48, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-inverse);
            border-color: rgba(255, 255, 255, 0.4);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-inverse);
            border-color: rgba(255, 255, 255, 0.7);
        }
        .btn-dark {
            background: var(--primary);
            color: var(--text-inverse);
            border-color: var(--primary);
        }
        .btn-dark:hover {
            background: var(--primary-light);
            color: var(--text-inverse);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 58, 92, 0.30);
        }

        /* ===== Tags / Badges ===== */
        .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(232, 184, 48, 0.12);
            color: var(--accent-dark);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            background: var(--primary);
            color: var(--text-inverse);
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            padding: 32px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .stat-item .num {
            font-size: 40px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-item .label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 8px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 20px 0;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 18px;
            font-weight: 600;
            color: var(--primary-dark);
            cursor: pointer;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 18px;
            color: var(--text-light);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-question i {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.8;
            padding: 0 24px 0 0;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-top: 12px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url(/assets/images/backpic/back-3.png) center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 36px;
            color: var(--text-inverse);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px;
        }
        footer .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: var(--text-inverse);
            margin-bottom: 16px;
        }
        .footer-brand .logo i {
            color: var(--accent);
        }
        .footer-brand .logo span {
            color: var(--text-inverse);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-col h4 {
            color: var(--text-inverse);
            font-size: 16px;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            padding: 5px 0;
            transition: color var(--transition), padding-left var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-col a i {
            margin-right: 8px;
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-banner h1 {
                font-size: 36px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.4s ease, opacity 0.3s ease;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links a {
                padding: 12px 20px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-toggle {
                display: block;
            }
            .page-banner {
                padding: 120px 0 60px;
                min-height: 240px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner p {
                font-size: 16px;
            }
            .section {
                padding: 56px 0;
            }
            .section-title h2 {
                font-size: 26px;
            }
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-item {
                padding: 24px 12px;
            }
            .stat-item .num {
                font-size: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .faq-question {
                font-size: 16px;
            }
        }

        @media (max-width: 520px) {
            .nav-wrap {
                padding: 0 16px;
            }
            .container {
                padding: 0 16px;
            }
            .page-banner h1 {
                font-size: 24px;
            }
            .section-title h2 {
                font-size: 22px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .btn {
                padding: 10px 24px;
                font-size: 14px;
            }
            .card-body {
                padding: 18px 20px 22px;
            }
            .card-body h3 {
                font-size: 18px;
            }
        }

        /* ===== Misc ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .icon-list {
            display: grid;
            gap: 16px;
        }
        .icon-list li {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            font-size: 15px;
            color: var(--text);
        }
        .icon-list li i {
            color: var(--accent);
            font-size: 18px;
            margin-top: 3px;
            min-width: 22px;
        }

        /* 分割线 */
        .divider {
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 16px 0 24px;
        }

        /* 图文区块 */
        .media-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .media-block .media-img {
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }
        .media-block .media-content h3 {
            font-size: 28px;
            margin-bottom: 16px;
        }
        .media-block .media-content p {
            color: var(--text-light);
            margin-bottom: 16px;
            font-size: 16px;
        }
        @media (max-width: 768px) {
            .media-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .media-block .media-content h3 {
                font-size: 22px;
            }
        }

        /* 卡片列表水平滚动（移动端优雅降级） */
        .card-scroll {
            display: flex;
            gap: 24px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .card-scroll .card {
            flex: 0 0 320px;
            scroll-snap-align: start;
        }
        @media (max-width: 768px) {
            .card-scroll {
                gap: 16px;
                padding-bottom: 8px;
            }
            .card-scroll .card {
                flex: 0 0 280px;
            }
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a4a;
            --accent: #e74c3c;
            --accent-light: #ff6b5a;
            --accent-dark: #c0392b;
            --bg-light: #f8f9fc;
            --bg-white: #ffffff;
            --bg-dark: #0f1a2e;
            --text-dark: #1a1a2e;
            --text-body: #2d2d44;
            --text-muted: #6b7280;
            --text-light: #f0f2f8;
            --border: #e2e6ef;
            --border-light: #f0f2f8;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 108, 0.06);
            --shadow-md: 0 8px 30px rgba(26, 42, 108, 0.10);
            --shadow-lg: 0 20px 50px rgba(26, 42, 108, 0.12);
            --shadow-hover: 0 16px 40px rgba(26, 42, 108, 0.16);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 头部导航（极简高端文字导航） ===== */
        #header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            height: var(--header-h);
            transition: var(--transition);
        }
        #header .nav-wrap {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        #header .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.3px;
        }
        #header .logo i {
            font-size: 1.5rem;
            color: var(--accent);
        }
        #header .logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        #header .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        #header .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 6px 0;
            position: relative;
            letter-spacing: 0.3px;
            transition: var(--transition);
        }
        #header .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: var(--transition);
            border-radius: 2px;
        }
        #header .nav-links a:hover {
            color: var(--primary);
        }
        #header .nav-links a:hover::after {
            width: 100%;
        }
        #header .nav-links a.active {
            color: var(--primary);
            font-weight: 600;
        }
        #header .nav-links a.active::after {
            width: 100%;
            background: var(--accent);
        }
        .nav-toggle {
            display: none;
            font-size: 1.6rem;
            color: var(--primary);
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--border-light);
        }
        @media (max-width: 768px) {
            #header .nav-wrap {
                padding: 0 16px;
            }
            .nav-toggle {
                display: block;
            }
            #header .nav-links {
                position: fixed;
                top: var(--header-h);
                left: 0;
                width: 100%;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                gap: 0;
                padding: 12px 0 20px;
                box-shadow: var(--shadow-md);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-bottom: 1px solid var(--border);
                z-index: 999;
            }
            #header .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            #header .nav-links a {
                padding: 14px 24px;
                font-size: 1rem;
                width: 100%;
                border-bottom: 1px solid var(--border-light);
            }
            #header .nav-links a::after {
                display: none;
            }
            #header .nav-links a.active {
                background: rgba(26, 42, 108, 0.04);
                color: var(--primary);
                font-weight: 600;
                border-left: 3px solid var(--accent);
            }
        }
        @media (min-width: 769px) {
            #header .nav-links {
                display: flex !important;
                transform: none !important;
                opacity: 1 !important;
                pointer-events: all !important;
                position: static !important;
                background: none !important;
                box-shadow: none !important;
                padding: 0 !important;
                border: none !important;
                backdrop-filter: none !important;
            }
        }

        /* ===== 文章 Banner ===== */
        .article-banner {
            padding: 140px 0 60px;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary), var(--primary-light));
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.18;
            pointer-events: none;
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .article-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            transition: var(--transition);
        }
        .article-banner .breadcrumb a:hover {
            color: #fff;
        }
        .article-banner .breadcrumb span {
            color: rgba(255, 255, 255, 0.5);
        }
        .article-banner .breadcrumb i {
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .article-banner h1 {
            font-size: 2.4rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            max-width: 820px;
            letter-spacing: -0.5px;
            margin-bottom: 18px;
        }
        .article-banner .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px 30px;
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.9rem;
        }
        .article-banner .meta i {
            margin-right: 6px;
            color: var(--accent);
        }
        .article-banner .meta .category-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 3px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        @media (max-width: 768px) {
            .article-banner {
                padding: 110px 0 40px;
                min-height: 240px;
            }
            .article-banner h1 {
                font-size: 1.6rem;
            }
            .article-banner .meta {
                gap: 12px 20px;
                font-size: 0.8rem;
            }
        }
        @media (max-width: 520px) {
            .article-banner h1 {
                font-size: 1.3rem;
            }
            .article-banner {
                padding: 100px 0 30px;
                min-height: 200px;
            }
        }

        /* ===== 文章正文区域 ===== */
        .article-main {
            padding: 50px 0 70px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 40px;
            }
        }
        .article-content {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .article-content .body-text {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-body);
        }
        .article-content .body-text p {
            margin-bottom: 1.4em;
        }
        .article-content .body-text h2,
        .article-content .body-text h3 {
            color: var(--primary);
            margin-top: 1.8em;
            margin-bottom: 0.6em;
            font-weight: 700;
        }
        .article-content .body-text h2 {
            font-size: 1.5rem;
        }
        .article-content .body-text h3 {
            font-size: 1.2rem;
        }
        .article-content .body-text ul,
        .article-content .body-text ol {
            margin: 1em 0;
            padding-left: 1.6em;
        }
        .article-content .body-text li {
            margin-bottom: 0.5em;
            list-style: disc;
        }
        .article-content .body-text ol li {
            list-style: decimal;
        }
        .article-content .body-text a {
            color: var(--accent);
            border-bottom: 1px solid transparent;
        }
        .article-content .body-text a:hover {
            border-bottom-color: var(--accent);
        }
        .article-content .body-text blockquote {
            border-left: 4px solid var(--accent);
            background: var(--bg-light);
            padding: 16px 22px;
            margin: 1.6em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted);
            font-style: italic;
        }
        .article-content .body-text img {
            border-radius: var(--radius-md);
            margin: 1.8em auto;
            box-shadow: var(--shadow-sm);
        }
        .article-content .body-text .article-image-wrapper {
            margin: 1.8em 0;
            text-align: center;
        }
        .article-content .body-text .article-image-wrapper img {
            display: inline-block;
            max-width: 100%;
        }
        .article-content .body-text .article-image-wrapper .img-caption {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 8px;
        }
        .article-content .post-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
        }
        .article-content .post-tags .tag {
            display: inline-block;
            background: var(--bg-light);
            color: var(--text-muted);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .article-content .post-tags .tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .article-content .post-share {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 24px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
        }
        .article-content .post-share span {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .article-content .post-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-light);
            color: var(--text-muted);
            border: 1px solid var(--border);
            transition: var(--transition);
            font-size: 1rem;
        }
        .article-content .post-share a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        @media (max-width: 768px) {
            .article-content {
                padding: 24px 20px;
            }
            .article-content .body-text {
                font-size: 0.98rem;
            }
            .article-content .body-text h2 {
                font-size: 1.3rem;
            }
            .article-content .body-text h3 {
                font-size: 1.1rem;
            }
        }

        /* ===== 侧边栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i {
            color: var(--accent);
            font-size: 1.1rem;
        }
        .sidebar-related-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .sidebar-related-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding-bottom: 14px;
            border-bottom: 1px solid var(--border-light);
        }
        .sidebar-related-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .sidebar-related-item .thumb {
            width: 72px;
            height: 52px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--border-light);
        }
        .sidebar-related-item .info {
            flex: 1;
            min-width: 0;
        }
        .sidebar-related-item .info a {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: var(--transition);
        }
        .sidebar-related-item .info a:hover {
            color: var(--accent);
        }
        .sidebar-related-item .info .date {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border: none;
            text-align: center;
            padding: 32px 24px;
        }
        .sidebar-cta h3 {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, 0.15);
        }
        .sidebar-cta h3 i {
            color: var(--accent-light);
        }
        .sidebar-cta p {
            font-size: 0.9rem;
            opacity: 0.85;
            margin-bottom: 20px;
            line-height: 1.6;
        }
        .sidebar-cta .btn-accent {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 10px 28px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .sidebar-cta .btn-accent:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(231, 76, 60, 0.35);
            color: #fff;
        }
        @media (max-width: 1024px) {
            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .sidebar-card {
                padding: 20px 18px;
            }
        }
        @media (max-width: 640px) {
            .article-sidebar {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 相关文章区域 ===== */
        .related-section {
            padding: 50px 0 70px;
            background: var(--bg-light);
        }
        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            text-align: center;
        }
        .related-section .section-sub {
            text-align: center;
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 560px;
            margin: 0 auto 36px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .related-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: var(--border-light);
        }
        .related-card .card-body {
            padding: 20px 22px 24px;
        }
        .related-card .card-body .card-cat {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(231, 76, 60, 0.08);
            padding: 2px 12px;
            border-radius: 12px;
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .related-card .card-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card .card-body h4 a {
            color: inherit;
        }
        .related-card .card-body h4 a:hover {
            color: var(--accent);
        }
        .related-card .card-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            margin-top: 14px;
            transition: var(--transition);
        }
        .related-card .card-body .read-more i {
            font-size: 0.75rem;
            transition: var(--transition);
        }
        .related-card .card-body .read-more:hover {
            color: var(--accent);
        }
        .related-card .card-body .read-more:hover i {
            transform: translateX(4px);
        }
        @media (max-width: 968px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
            .related-section .section-title {
                font-size: 1.3rem;
            }
        }

        /* ===== CTA 区域 ===== */
        .article-cta {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            position: relative;
            overflow: hidden;
        }
        .article-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.10;
            pointer-events: none;
        }
        .article-cta .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .article-cta h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .article-cta p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 580px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .article-cta .btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .article-cta .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .article-cta .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(231, 76, 60, 0.35);
            color: #fff;
        }
        .article-cta .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid rgba(255, 255, 255, 0.35);
            transition: var(--transition);
        }
        .article-cta .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            transform: translateY(-2px);
        }
        @media (max-width: 640px) {
            .article-cta h2 {
                font-size: 1.4rem;
            }
            .article-cta .btn-primary,
            .article-cta .btn-outline {
                padding: 12px 28px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== 页脚 ===== */
        footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 30px;
        }
        footer .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        footer .footer-brand .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        footer .footer-brand .logo i {
            color: var(--accent);
        }
        footer .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            opacity: 0.7;
            max-width: 320px;
        }
        footer .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        footer .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            padding: 5px 0;
            transition: var(--transition);
        }
        footer .footer-col a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }
        footer .footer-col a i {
            margin-right: 8px;
            width: 16px;
            text-align: center;
        }
        footer .footer-bottom {
            text-align: center;
            padding-top: 28px;
            font-size: 0.82rem;
            opacity: 0.55;
            letter-spacing: 0.3px;
        }
        footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }
        footer .footer-bottom a:hover {
            color: var(--accent-light);
        }
        @media (max-width: 868px) {
            footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            footer .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            footer {
                padding: 40px 0 20px;
            }
        }

        /* ===== 内容未找到 ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .not-found-box i {
            font-size: 3.5rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            opacity: 0.5;
        }
        .not-found-box h2 {
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .not-found-box .back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .back-home:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        /* ===== 动画 / 工具 ===== */
        .fade-in {
            animation: fadeIn 0.6s ease forwards;
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 480px) {
            .article-banner h1 {
                font-size: 1.2rem;
            }
            .article-banner .meta {
                font-size: 0.75rem;
                gap: 8px 14px;
            }
            .article-content {
                padding: 18px 14px;
            }
            .sidebar-card {
                padding: 16px 14px;
            }
            .related-card .card-body {
                padding: 16px 16px 18px;
            }
            .related-card .card-img {
                height: 140px;
            }
        }