/* roulang page: index */
:root {
            --primary: #1e3a5f;
            --primary-light: #2d5a8e;
            --primary-dark: #0f2440;
            --accent: #c9a84c;
            --accent-light: #e0c66a;
            --accent-dark: #a88a30;
            --bg: #ffffff;
            --bg-alt: #f6f8fb;
            --bg-dark: #0f1a2e;
            --text: #1a2332;
            --text-light: #5a6a7e;
            --text-inverse: #ffffff;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 4px 24px rgba(0,0,0,0.06);
            --shadow-lg: 0 12px 48px rgba(0,0,0,0.10);
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            font-size: 16px;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        button, input, textarea { font-family: inherit; font-size: 1rem; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .container-narrow { max-width: 880px; margin: 0 auto; padding: 0 24px; }

        /* header / nav */
        .site-header {
            position: sticky; top: 0; z-index: 50;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex; align-items: center; justify-content: space-between;
            height: 68px;
        }
        .logo { font-size: 1.4rem; font-weight: 700; letter-spacing: -0.02em; color: var(--primary); }
        .logo span { color: var(--accent); }
        .nav-links { display: flex; align-items: center; gap: 8px; }
        .nav-links a {
            padding: 8px 18px; border-radius: var(--radius-xs);
            font-weight: 500; font-size: 0.95rem; color: var(--text-light);
            transition: var(--transition);
        }
        .nav-links a:hover { color: var(--primary); background: var(--bg-alt); }
        .nav-links a.active { color: var(--primary); background: var(--bg-alt); font-weight: 600; }
        .nav-cta {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 10px 24px; border-radius: var(--radius-xs);
            font-weight: 600; font-size: 0.95rem;
            background: var(--accent); color: var(--primary-dark);
            transition: var(--transition);
        }
        .nav-cta:hover { background: var(--accent-light); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(201,168,76,0.35); }
        .menu-toggle { display: none; background: none; border: none; font-size: 1.6rem; color: var(--primary); cursor: pointer; padding: 4px; }

        /* hero split */
        .hero-split {
            display: flex; align-items: center; min-height: 86vh;
            background: var(--bg);
            position: relative; overflow: hidden;
        }
        .hero-split::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.08; pointer-events: none;
        }
        .hero-split .container {
            display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
            align-items: center; position: relative; z-index: 1;
        }
        .hero-text h1 {
            font-size: 3.4rem; font-weight: 800; line-height: 1.2;
            letter-spacing: -0.03em; color: var(--primary);
            margin-bottom: 20px;
        }
        .hero-text h1 em { font-style: normal; color: var(--accent); }
        .hero-text p {
            font-size: 1.15rem; color: var(--text-light);
            max-width: 480px; margin-bottom: 32px; line-height: 1.7;
        }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .btn-primary {
            display: inline-flex; align-items: center; gap: 10px;
            padding: 16px 36px; border-radius: var(--radius-sm);
            font-weight: 600; font-size: 1.05rem;
            background: var(--primary); color: var(--text-inverse);
            transition: var(--transition); border: none; cursor: pointer;
        }
        .btn-primary:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
        .btn-outline {
            display: inline-flex; align-items: center; gap: 10px;
            padding: 16px 36px; border-radius: var(--radius-sm);
            font-weight: 600; font-size: 1.05rem;
            background: transparent; color: var(--primary);
            border: 2px solid var(--border);
            transition: var(--transition); cursor: pointer;
        }
        .btn-outline:hover { border-color: var(--primary); background: var(--bg-alt); transform: translateY(-2px); }
        .hero-visual {
            display: flex; justify-content: center; align-items: center;
            position: relative;
        }
        .hero-visual img {
            width: 100%; max-width: 540px; border-radius: var(--radius);
            box-shadow: var(--shadow-lg); object-fit: cover;
            aspect-ratio: 4/3;
        }
        .hero-badge {
            display: inline-flex; align-items: center; gap: 6px;
            padding: 6px 16px; border-radius: 50px;
            background: rgba(201,168,76,0.15); color: var(--accent-dark);
            font-size: 0.85rem; font-weight: 600; margin-bottom: 16px;
        }

        /* section通用 */
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-alt); }
        .section-dark { background: var(--bg-dark); color: var(--text-inverse); }
        .section-title {
            font-size: 2.2rem; font-weight: 700; letter-spacing: -0.02em;
            color: var(--primary); margin-bottom: 12px;
        }
        .section-title em { font-style: normal; color: var(--accent); }
        .section-sub { font-size: 1.05rem; color: var(--text-light); max-width: 600px; margin-bottom: 48px; }
        .section-dark .section-title { color: var(--text-inverse); }
        .section-dark .section-sub { color: rgba(255,255,255,0.65); }

        /* 卡片网格 */
        .grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }
        .grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 28px; }
        .card {
            background: var(--bg); border-radius: var(--radius);
            box-shadow: var(--shadow); padding: 32px 28px;
            transition: var(--transition); border: 1px solid var(--border);
        }
        .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .card-icon { font-size: 2.2rem; color: var(--accent); margin-bottom: 16px; }
        .card h3 { font-size: 1.25rem; font-weight: 600; color: var(--primary); margin-bottom: 8px; }
        .card p { color: var(--text-light); font-size: 0.95rem; line-height: 1.7; }

        /* 资讯列表 */
        .post-list { display: flex; flex-direction: column; gap: 20px; }
        .post-item {
            display: flex; align-items: flex-start; gap: 20px;
            padding: 20px 24px; background: var(--bg); border-radius: var(--radius-sm);
            box-shadow: var(--shadow); border: 1px solid var(--border);
            transition: var(--transition);
        }
        .post-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
        .post-thumb { width: 120px; height: 80px; border-radius: var(--radius-xs); object-fit: cover; flex-shrink: 0; }
        .post-info { flex: 1; }
        .post-info h4 { font-size: 1.05rem; font-weight: 600; color: var(--primary); margin-bottom: 4px; }
        .post-info p { font-size: 0.9rem; color: var(--text-light); }
        .post-meta { display: flex; gap: 16px; font-size: 0.8rem; color: var(--text-light); margin-top: 6px; }
        .post-meta span { display: inline-flex; align-items: center; gap: 4px; }

        /* stats */
        .stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 28px; }
        .stat-item { text-align: center; padding: 32px 16px; }
        .stat-number { font-size: 2.8rem; font-weight: 800; color: var(--accent); line-height: 1.1; }
        .stat-label { font-size: 0.95rem; color: var(--text-light); margin-top: 6px; }

        /* timeline */
        .timeline { display: flex; flex-direction: column; gap: 24px; max-width: 720px; margin: 0 auto; }
        .tl-item { display: flex; gap: 24px; align-items: flex-start; }
        .tl-time { min-width: 80px; font-weight: 700; color: var(--accent); font-size: 1rem; }
        .tl-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--accent); margin-top: 6px; flex-shrink: 0; position: relative; }
        .tl-dot::before { content: ''; position: absolute; top: 16px; left: 5px; width: 2px; height: 60px; background: var(--border); }
        .tl-item:last-child .tl-dot::before { display: none; }
        .tl-content h4 { font-weight: 600; color: var(--primary); font-size: 1.05rem; }
        .tl-content p { color: var(--text-light); font-size: 0.9rem; margin-top: 2px; }

        /* faq */
        .faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item { border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; transition: var(--transition); }
        .faq-q {
            padding: 18px 24px; font-weight: 600; color: var(--primary);
            cursor: pointer; display: flex; justify-content: space-between; align-items: center;
            background: var(--bg); transition: var(--transition);
        }
        .faq-q:hover { background: var(--bg-alt); }
        .faq-q i { transition: var(--transition); color: var(--accent); }
        .faq-q.open i { transform: rotate(180deg); }
        .faq-a { padding: 0 24px 18px; color: var(--text-light); font-size: 0.95rem; display: none; }

        /* cta */
        .cta-block {
            background: var(--primary); border-radius: var(--radius);
            padding: 64px 48px; text-align: center; position: relative; overflow: hidden;
        }
        .cta-block::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.06; pointer-events: none;
        }
        .cta-block h2 { font-size: 2.2rem; font-weight: 700; color: var(--text-inverse); margin-bottom: 12px; position: relative; }
        .cta-block p { color: rgba(255,255,255,0.75); max-width: 520px; margin: 0 auto 28px; font-size: 1.05rem; position: relative; }
        .cta-block .btn-primary { background: var(--accent); color: var(--primary-dark); }
        .cta-block .btn-primary:hover { background: var(--accent-light); }

        /* footer */
        .site-footer { background: var(--bg-dark); color: rgba(255,255,255,0.7); padding: 48px 0 28px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
        .footer-brand .logo { color: var(--text-inverse); }
        .footer-brand p { font-size: 0.9rem; margin-top: 12px; max-width: 300px; line-height: 1.7; }
        .footer-links h4 { color: var(--text-inverse); font-weight: 600; margin-bottom: 12px; font-size: 1rem; }
        .footer-links a { display: block; font-size: 0.9rem; padding: 4px 0; color: rgba(255,255,255,0.6); }
        .footer-links a:hover { color: var(--accent); }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; margin-top: 40px; text-align: center; font-size: 0.85rem; color: rgba(255,255,255,0.45); }

        /* 响应式 */
        @media(max-width:1024px) {
            .hero-split .container { grid-template-columns: 1fr; gap: 40px; }
            .hero-text h1 { font-size: 2.6rem; }
            .hero-visual img { max-width: 100%; }
            .grid-3 { grid-template-columns: repeat(2,1fr); }
            .stats-grid { grid-template-columns: repeat(2,1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media(max-width:768px) {
            .nav-links { display: none; position: absolute; top: 68px; left: 0; right: 0; background: var(--bg); flex-direction: column; padding: 16px 24px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); }
            .nav-links.open { display: flex; }
            .menu-toggle { display: block; }
            .hero-text h1 { font-size: 2rem; }
            .hero-split { min-height: auto; padding: 60px 0; }
            .grid-3, .grid-2 { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2,1fr); gap: 16px; }
            .post-item { flex-direction: column; }
            .post-thumb { width: 100%; height: 160px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .cta-block { padding: 40px 24px; }
            .section-title { font-size: 1.7rem; }
            .hero-actions { flex-direction: column; }
            .hero-actions .btn-primary, .hero-actions .btn-outline { width: 100%; justify-content: center; }
        }
        @media(max-width:520px) {
            .container { padding: 0 16px; }
            .hero-text h1 { font-size: 1.7rem; }
            .stat-number { font-size: 2rem; }
            .tl-item { flex-direction: column; gap: 8px; }
            .tl-time { min-width: auto; }
        }
        .empty-tip { padding: 32px; text-align: center; color: var(--text-light); font-size: 1rem; background: var(--bg); border-radius: var(--radius-sm); border: 1px dashed var(--border); }
        
        /* 分类页banner覆盖 */
        .banner-page {
            padding: 80px 0 60px; background: var(--primary); position: relative; overflow: hidden;
        }
        .banner-page::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.07; pointer-events: none;
        }
        .banner-page .container { position: relative; z-index: 1; }
        .banner-page h1 { font-size: 2.6rem; font-weight: 700; color: var(--text-inverse); margin-bottom: 8px; }
        .banner-page p { color: rgba(255,255,255,0.7); font-size: 1.1rem; max-width: 540px; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a9e;
            --primary-dark: #0f1a4a;
            --accent: #f57c00;
            --accent-light: #ffa040;
            --accent-dark: #e65100;
            --bg-light: #f8f9fc;
            --bg-white: #ffffff;
            --bg-dark: #0f1a3a;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8a8aaa;
            --text-white: #ffffff;
            --border: #e0e4f0;
            --border-light: #f0f2f8;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --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, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container-max: 1200px;
            --header-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-family);
            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 {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
        }
        p {
            color: var(--text-secondary);
            margin-bottom: 1rem;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 导航栏 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-header .logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .site-header .logo span {
            color: var(--accent);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            color: var(--text-secondary);
            font-size: 0.95rem;
            transition: var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: rgba(26, 42, 108, 0.04);
        }
        .nav-links a.active {
            color: var(--primary);
            background: rgba(26, 42, 108, 0.08);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-links a.nav-cta {
            background: var(--accent);
            color: #fff;
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            gap: 6px;
            box-shadow: 0 4px 12px rgba(245, 124, 0, 0.3);
        }
        .nav-links a.nav-cta:hover {
            background: var(--accent-dark);
            box-shadow: 0 6px 20px rgba(245, 124, 0, 0.4);
            transform: translateY(-1px);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Banner / 首屏 ===== */
        .page-banner {
            padding: 120px 0 80px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--bg-light), transparent);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 3rem;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -1px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }
        .page-banner h1 span {
            color: var(--accent-light);
        }
        .page-banner p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto 28px;
        }
        .page-banner .banner-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(245, 124, 0, 0.35);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            box-shadow: 0 8px 28px rgba(245, 124, 0, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 580px;
            margin: 0 auto;
        }
        .section-title .badge {
            display: inline-block;
            background: rgba(245, 124, 0, 0.12);
            color: var(--accent-dark);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        /* ===== 议程亮点卡片 ===== */
        .highlight-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 28px;
        }
        .highlight-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: var(--transition);
        }
        .highlight-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .highlight-card .icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(26, 42, 108, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.6rem;
            color: var(--primary);
        }
        .highlight-card h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .highlight-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== 时间线 ===== */
        .timeline {
            position: relative;
            max-width: 820px;
            margin: 0 auto;
            padding-left: 40px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 8px;
            bottom: 8px;
            width: 3px;
            background: linear-gradient(to bottom, var(--primary-light), var(--accent));
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            padding: 0 0 40px 32px;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -24px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent);
            border: 3px solid var(--bg-light);
            box-shadow: 0 0 0 3px var(--primary-light);
            z-index: 1;
        }
        .timeline-item .time {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary-light);
            letter-spacing: 0.5px;
            margin-bottom: 4px;
        }
        .timeline-item h3 {
            font-size: 1.15rem;
            margin-bottom: 4px;
            color: var(--primary);
        }
        .timeline-item p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .timeline-item .tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(26, 42, 108, 0.08);
            color: var(--primary);
            margin-top: 6px;
        }

        /* ===== 嘉宾卡片 ===== */
        .speaker-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
        }
        .speaker-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 20px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .speaker-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .speaker-card .avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 14px;
            border: 3px solid var(--border-light);
        }
        .speaker-card h4 {
            font-size: 1rem;
            color: var(--primary);
            margin-bottom: 2px;
        }
        .speaker-card .role {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .speaker-card .topic {
            font-size: 0.9rem;
            color: var(--accent-dark);
            font-weight: 500;
            background: rgba(245, 124, 0, 0.08);
            padding: 4px 12px;
            border-radius: 50px;
            display: inline-block;
        }

        /* ===== 议题分类 ===== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
        }
        .topic-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .topic-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .topic-card .topic-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .topic-card .topic-img .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 26, 74, 0.6), transparent);
        }
        .topic-card .topic-img .topic-label {
            position: absolute;
            bottom: 12px;
            left: 16px;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }
        .topic-card .topic-body {
            padding: 20px 22px 24px;
        }
        .topic-card .topic-body p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .topic-card .topic-body .meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .topic-card .topic-body .meta i {
            margin-right: 4px;
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 28px;
            text-align: center;
        }
        .stat-item {
            padding: 28px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(4px);
        }
        .stat-item .number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-item .label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-item .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 1rem;
            transition: var(--transition);
            background: none;
            width: 100%;
            text-align: left;
        }
        .faq-item .faq-question i {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .faq-item .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            display: none;
        }
        .faq-item .faq-answer.open {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 80px 24px;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 540px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-primary {
            font-size: 1.1rem;
            padding: 16px 40px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px;
        }
        .site-footer .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            display: inline-block;
            margin-bottom: 12px;
        }
        .footer-brand .logo span {
            color: var(--accent-light);
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
            margin-bottom: 0;
        }
        .footer-links h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-links a {
            display: block;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            text-align: center;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .page-banner h1 {
                font-size: 2.4rem;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .nav-links {
                position: fixed;
                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 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-light);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                box-shadow: var(--shadow-md);
                pointer-events: none;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
            }
            .nav-links a.nav-cta {
                justify-content: center;
                margin-top: 8px;
            }
            .nav-toggle {
                display: flex;
            }
            .page-banner {
                padding: 100px 0 60px;
                min-height: 340px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner p {
                font-size: 1rem;
            }
            .section {
                padding: 56px 0;
            }
            .section-title h2 {
                font-size: 1.7rem;
            }
            .timeline {
                padding-left: 28px;
            }
            .timeline-item {
                padding-left: 20px;
            }
            .timeline-item::before {
                left: -20px;
                width: 12px;
                height: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .number {
                font-size: 2rem;
            }
            .cta-section .container {
                padding: 56px 24px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .highlight-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner .banner-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                justify-content: center;
                padding: 12px 24px;
            }
            .highlight-grid {
                grid-template-columns: 1fr;
            }
            .speaker-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .section-title h2 {
                font-size: 1.4rem;
            }
            .faq-item .faq-question {
                font-size: 0.95rem;
                padding: 14px 16px;
            }
            .faq-item .faq-answer {
                padding: 0 16px 14px;
            }
        }

.faq-answer { display: block !important; }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --primary-dark: #0f2440;
            --accent: #f5a623;
            --accent-light: #ffc55a;
            --accent-dark: #d4891a;
            --bg-body: #f8f9fc;
            --bg-white: #ffffff;
            --bg-light: #f0f3f8;
            --bg-dark: #1a2a3a;
            --text-primary: #1a2a3a;
            --text-secondary: #5a6a7a;
            --text-light: #8a9aaa;
            --text-white: #ffffff;
            --border: #e0e4ea;
            --border-light: #f0f2f5;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26,42,58,0.06);
            --shadow-md: 0 6px 24px rgba(26,42,58,0.08);
            --shadow-lg: 0 12px 40px rgba(26,42,58,0.12);
            --shadow-xl: 0 24px 60px rgba(26,42,58,0.16);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 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-family);
            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-light); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); }
        a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
        button, input, textarea { 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; color: var(--text-primary); font-weight: 700; }

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

        /* ===== Header / 导航 ===== */
        .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 var(--border);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .site-header.scrolled {
            background: rgba(255,255,255,0.98);
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .logo span { color: var(--accent); font-weight: 700; }
        .logo:hover { color: var(--primary); }
        .logo:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 6px; }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: var(--bg-light);
        }
        .nav-links a.active {
            color: var(--primary);
            background: var(--bg-light);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px; left: 50%;
            transform: translateX(-50%);
            width: 20px; height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-links a.nav-cta {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 600;
            padding: 8px 22px;
            border-radius: 50px;
            display: flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 4px 14px rgba(245,166,35,0.3);
        }
        .nav-links a.nav-cta:hover {
            background: var(--accent-light);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(245,166,35,0.4);
        }
        .nav-links a.nav-cta i { font-size: 0.9rem; }

        .menu-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 8px;
            border-radius: var(--radius-sm);
            background: var(--bg-light);
        }
        .menu-toggle:hover { background: var(--border); }

        /* ===== 移动端导航 ===== */
        @media (max-width: 820px) {
            .menu-toggle { display: block; }
            .nav-links {
                position: fixed;
                top: var(--header-height); left: 0; right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
                border-bottom: 2px solid var(--border);
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links a {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
                font-size: 1.05rem;
            }
            .nav-links a.active::after { display: none; }
            .nav-links a.nav-cta {
                justify-content: center;
                margin-top: 8px;
                padding: 12px 20px;
            }
        }

        /* ===== 文章 Hero ===== */
        .article-hero {
            margin-top: var(--header-height);
            padding: 80px 0 60px;
            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;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .article-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(245,166,35,0.2);
            color: var(--accent-light);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 16px;
            border: 1px solid rgba(245,166,35,0.25);
        }
        .article-hero .hero-badge i { font-size: 0.75rem; }
        .article-hero h1 {
            font-size: 2.8rem;
            color: var(--text-white);
            max-width: 880px;
            line-height: 1.25;
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.15);
        }
        .article-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 32px;
            color: rgba(255,255,255,0.75);
            font-size: 0.95rem;
            align-items: center;
        }
        .article-hero .hero-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-hero .hero-meta i { opacity: 0.6; }
        .article-hero .hero-meta .category-tag {
            background: var(--accent);
            color: var(--primary-dark);
            padding: 2px 14px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
        }

        /* ===== 文章正文 ===== */
        .article-content-section {
            padding: 60px 0 40px;
            background: var(--bg-white);
        }
        .article-content-section .container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .article-body p {
            margin-bottom: 1.4em;
        }
        .article-body h2, .article-body h3 {
            margin-top: 1.8em;
            margin-bottom: 0.6em;
            color: var(--primary);
        }
        .article-body h2 { font-size: 1.6rem; }
        .article-body h3 { font-size: 1.25rem; }
        .article-body ul, .article-body ol {
            margin: 1em 0;
            padding-left: 1.6em;
        }
        .article-body ul li { list-style: disc; margin-bottom: 0.4em; }
        .article-body ol li { list-style: decimal; margin-bottom: 0.4em; }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            padding: 16px 24px;
            margin: 1.6em 0;
            background: var(--bg-light);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.8em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body a {
            color: var(--accent-dark);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-body a:hover { color: var(--primary); }

        .article-sidebar {
            position: sticky;
            top: calc(var(--header-height) + 32px);
            align-self: start;
        }
        .sidebar-card {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            margin-bottom: 24px;
            border: 1px solid var(--border);
        }
        .sidebar-card h4 {
            font-size: 1.1rem;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .sidebar-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .sidebar-card .btn-block {
            width: 100%;
            text-align: center;
            padding: 12px;
            border-radius: var(--radius-sm);
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 600;
            transition: all var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .sidebar-card .btn-block:hover {
            background: var(--accent-light);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tags a {
            padding: 4px 14px;
            border-radius: 50px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: all var(--transition);
        }
        .sidebar-tags a:hover {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
        }

        /* ===== 文章标签区 ===== */
        .article-tags-section {
            padding: 20px 0 40px;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
        }
        .article-tags-section .tags-wrap {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
        }
        .article-tags-section .tags-wrap .label {
            font-weight: 600;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        .article-tags-section .tag-item {
            padding: 4px 16px;
            border-radius: 50px;
            background: var(--bg-light);
            color: var(--text-secondary);
            font-size: 0.88rem;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .article-tags-section .tag-item:hover {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
        }

        /* ===== 文章导航区 ===== */
        .article-nav-section {
            padding: 24px 0 40px;
            background: var(--bg-white);
        }
        .article-nav-section .nav-wrap {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }
        .article-nav-section .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            background: var(--bg-light);
            color: var(--text-secondary);
            font-weight: 500;
            transition: all var(--transition);
            border: 1px solid var(--border);
        }
        .article-nav-section .nav-link:hover {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        /* ===== CTA 报名区 ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.8);
            max-width: 640px;
            margin: 0 auto 32px;
        }
        .cta-section .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-section .btn-primary {
            padding: 14px 40px;
            border-radius: 50px;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1.05rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 8px 28px rgba(245,166,35,0.35);
        }
        .cta-section .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(245,166,35,0.45);
        }
        .cta-section .btn-secondary {
            padding: 14px 40px;
            border-radius: 50px;
            background: rgba(255,255,255,0.1);
            color: var(--text-white);
            font-weight: 600;
            font-size: 1.05rem;
            border: 1px solid rgba(255,255,255,0.25);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .btn-secondary:hover {
            background: rgba(255,255,255,0.2);
            transform: translateY(-2px);
        }

        /* ===== 相关文章 ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-light);
        }
        .related-section .section-title {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .related-section .section-sub {
            color: var(--text-secondary);
            margin-bottom: 36px;
            font-size: 1rem;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-light);
        }
        .related-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: var(--border);
        }
        .related-card .card-body {
            padding: 20px;
        }
        .related-card .card-body .card-cat {
            font-size: 0.8rem;
            color: var(--accent-dark);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .related-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .related-card .card-body h3 a { color: inherit; }
        .related-card .card-body h3 a:hover { color: var(--primary-light); }
        .related-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .card-meta {
            margin-top: 12px;
            font-size: 0.82rem;
            color: var(--text-light);
            display: flex;
            gap: 16px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 60px 0;
            background: var(--bg-white);
        }
        .faq-section .section-title {
            font-size: 1.8rem;
            color: var(--primary);
            text-align: center;
            margin-bottom: 40px;
        }
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: var(--bg-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--primary-light); }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            background: transparent;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover { background: rgba(26,58,92,0.04); }
        .faq-question i {
            transition: transform var(--transition);
            color: var(--accent);
            font-size: 0.9rem;
        }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s 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: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .site-footer .footer-brand .logo {
            color: var(--text-white);
            font-size: 1.5rem;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand p {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.55);
            max-width: 320px;
            line-height: 1.7;
        }
        .site-footer .footer-links h4 {
            color: var(--text-white);
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .site-footer .footer-links a {
            display: block;
            color: rgba(255,255,255,0.55);
            padding: 4px 0;
            font-size: 0.92rem;
            transition: color var(--transition);
        }
        .site-footer .footer-links a:hover { color: var(--accent); }
        .site-footer .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.35);
        }

        /* ===== 内容未找到 ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found-box i {
            font-size: 3.6rem;
            color: var(--text-light);
            margin-bottom: 20px;
        }
        .not-found-box h2 {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }
        .not-found-box .btn-home {
            padding: 12px 32px;
            border-radius: 50px;
            background: var(--primary);
            color: var(--text-white);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
        }
        .not-found-box .btn-home:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-content-section .container {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 820px) {
            .article-hero h1 { font-size: 2rem; }
            .article-hero { padding: 60px 0 40px; min-height: 260px; }
            .cta-section h2 { font-size: 1.8rem; }
            .article-sidebar { grid-template-columns: 1fr; }
        }
        @media (max-width: 600px) {
            .article-hero h1 { font-size: 1.5rem; }
            .article-hero .hero-meta { flex-direction: column; gap: 8px; align-items: flex-start; }
            .related-grid { grid-template-columns: 1fr; }
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .cta-section .btn-primary, .cta-section .btn-secondary { width: 100%; justify-content: center; }
            .article-nav-section .nav-wrap { flex-direction: column; align-items: stretch; }
            .article-nav-section .nav-link { justify-content: center; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 16px; }
            .article-hero h1 { font-size: 1.3rem; }
            .article-body { font-size: 0.98rem; }
            .cta-section h2 { font-size: 1.4rem; }
            .cta-section p { font-size: 0.95rem; }
        }