/* roulang page: index */
:root {
            --primary: #1a3a6b;
            --primary-light: #2a5a9b;
            --primary-dark: #0f2444;
            --accent: #e8a838;
            --accent-light: #f0c060;
            --accent-dark: #c88a20;
            --bg: #f4f6fb;
            --bg-white: #ffffff;
            --bg-dark: #0f1a30;
            --text: #1a1a2e;
            --text-light: #4a4a6a;
            --text-muted: #7a7a9a;
            --border: #e2e6f0;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 24px;
            --shadow: 0 6px 30px rgba(26, 58, 107, 0.10);
            --shadow-hover: 0 12px 40px rgba(26, 58, 107, 0.18);
            --transition: all 0.30s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container: 1280px;
            --nav-height: 72px;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.65; font-size: 16px; }
        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; }
        ul, ol { list-style: none; }
        .container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
        .container-fluid { width: 100%; padding: 0 24px; }
        .text-center { text-align: center; }
        .text-accent { color: var(--accent); }
        .section-padding { padding: 80px 0; }
        .section-padding-sm { padding: 48px 0; }
        .section-title { font-size: 2.2rem; font-weight: 700; color: var(--primary); margin-bottom: 12px; line-height: 1.25; }
        .section-subtitle { font-size: 1.1rem; color: var(--text-light); max-width: 680px; margin: 0 auto 48px; line-height: 1.6; }
        .section-divider { width: 60px; height: 4px; background: var(--accent); border-radius: 4px; margin: 0 auto 20px; }
        .bg-white { background: var(--bg-white); }
        .bg-dark { background: var(--bg-dark); color: #f0f2f8; }
        .bg-dark .section-title { color: #ffffff; }
        .bg-dark .section-subtitle { color: #b0b8d0; }
        .grid-x { display: flex; flex-wrap: wrap; }
        .grid-x > .cell { padding: 0 12px; flex: 0 0 auto; }
        .grid-x.grid-margin-x { margin: 0 -12px; }
        .grid-x.grid-margin-x > .cell { padding: 0 12px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .flex-between { display: flex; align-items: center; justify-content: space-between; }
        .gap-16 { gap: 16px; }
        .gap-24 { gap: 24px; }
        .gap-32 { gap: 32px; }
        .mt-16 { margin-top: 16px; }
        .mb-16 { margin-bottom: 16px; }
        .mb-32 { margin-bottom: 32px; }
        /* Navigation */
        .site-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; height: var(--nav-height); background: rgba(255,255,255,0.72); backdrop-filter: blur(18px) saturate(180%); -webkit-backdrop-filter: blur(18px) saturate(180%); border-bottom: 1px solid rgba(255,255,255,0.30); box-shadow: 0 2px 20px rgba(0,0,0,0.06); transition: var(--transition); }
        .site-header.scrolled { background: rgba(255,255,255,0.95); border-bottom-color: var(--border); box-shadow: 0 4px 30px rgba(0,0,0,0.08); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--nav-height); max-width: var(--container); margin: 0 auto; padding: 0 24px; }
        .logo { font-size: 1.5rem; font-weight: 800; color: var(--primary); letter-spacing: -0.5px; display: flex; align-items: center; gap: 10px; }
        .logo i { color: var(--accent); font-size: 1.6rem; }
        .logo span { background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-list { display: flex; align-items: center; gap: 6px; }
        .nav-list a { padding: 8px 18px; border-radius: var(--radius-sm); font-weight: 500; font-size: 0.95rem; color: var(--text-light); transition: var(--transition); position: relative; }
        .nav-list a:hover { color: var(--primary); background: rgba(26,58,107,0.06); }
        .nav-list a.active { color: var(--primary); background: rgba(26,58,107,0.10); font-weight: 600; }
        .nav-list a.active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--accent); border-radius: 4px; }
        .nav-cta { background: var(--accent) !important; color: var(--primary-dark) !important; padding: 10px 24px !important; border-radius: var(--radius-sm) !important; font-weight: 700 !important; box-shadow: 0 4px 14px rgba(232,168,56,0.30); }
        .nav-cta:hover { background: var(--accent-light) !important; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,168,56,0.40); }
        .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 8px; }
        .hamburger span { width: 28px; height: 3px; background: var(--primary); border-radius: 4px; transition: var(--transition); }
        .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px,6px); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-6px); }
        .mobile-nav { display: none; position: fixed; top: var(--nav-height); left: 0; width: 100%; background: rgba(255,255,255,0.98); backdrop-filter: blur(18px); border-bottom: 1px solid var(--border); box-shadow: 0 12px 40px rgba(0,0,0,0.10); padding: 20px 24px; z-index: 999; }
        .mobile-nav.open { display: block; }
        .mobile-nav a { display: block; padding: 12px 16px; border-radius: var(--radius-sm); font-weight: 500; color: var(--text-light); font-size: 1.05rem; }
        .mobile-nav a:hover { background: rgba(26,58,107,0.06); color: var(--primary); }
        .mobile-nav a.active { background: rgba(26,58,107,0.10); color: var(--primary); font-weight: 600; }
        .mobile-nav .nav-cta { margin-top: 12px; text-align: center; }
        /* Hero */
        .hero { padding: 140px 0 80px; background: linear-gradient(165deg, var(--primary-dark) 0%, var(--primary) 50%, #1f4a7a 100%); position: relative; overflow: hidden; }
        .hero::before { content: ''; position: absolute; top: -40%; right: -20%; width: 700px; height: 700px; border-radius: 50%; background: radial-gradient(circle, rgba(232,168,56,0.15) 0%, transparent 70%); pointer-events: none; }
        .hero::after { content: ''; position: absolute; bottom: -30%; left: -10%; width: 500px; height: 500px; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%); pointer-events: none; }
        .hero .container { position: relative; z-index: 2; }
        .hero h1 { font-size: 3.2rem; font-weight: 800; color: #ffffff; line-height: 1.2; margin-bottom: 20px; letter-spacing: -0.5px; }
        .hero h1 .highlight { color: var(--accent); }
        .hero p { font-size: 1.2rem; color: rgba(255,255,255,0.80); max-width: 600px; margin-bottom: 36px; line-height: 1.7; }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
        .btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; border-radius: var(--radius-sm); font-weight: 600; font-size: 1rem; border: none; cursor: pointer; transition: var(--transition); text-decoration: none; }
        .btn-primary { background: var(--accent); color: var(--primary-dark); box-shadow: 0 6px 24px rgba(232,168,56,0.35); }
        .btn-primary:hover { background: var(--accent-light); transform: translateY(-3px); box-shadow: 0 12px 36px rgba(232,168,56,0.45); color: var(--primary-dark); }
        .btn-outline { background: transparent; color: #ffffff; border: 2px solid rgba(255,255,255,0.30); }
        .btn-outline:hover { background: rgba(255,255,255,0.10); border-color: var(--accent); color: var(--accent); transform: translateY(-3px); }
        .btn-lg { padding: 16px 40px; font-size: 1.1rem; }
        .hero-stats { display: flex; flex-wrap: wrap; gap: 40px; margin-top: 48px; padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.12); }
        .hero-stat h3 { font-size: 2rem; font-weight: 800; color: #ffffff; }
        .hero-stat h3 i { color: var(--accent); margin-right: 8px; }
        .hero-stat p { font-size: 0.95rem; color: rgba(255,255,255,0.60); margin: 0; }
        /* Cards */
        .card { background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px 24px; transition: var(--transition); border: 1px solid var(--border); overflow: hidden; }
        .card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
        .card-icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.6rem; color: #ffffff; margin-bottom: 16px; }
        .card-icon.blue { background: var(--primary); }
        .card-icon.gold { background: var(--accent); color: var(--primary-dark); }
        .card-icon.teal { background: #1a7a6b; }
        .card-icon.rose { background: #8a2a5a; }
        .card h3 { font-size: 1.25rem; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
        .card p { color: var(--text-light); line-height: 1.6; font-size: 0.95rem; margin: 0; }
        .card-tag { display: inline-block; padding: 4px 14px; border-radius: 20px; font-size: 0.8rem; font-weight: 500; background: rgba(232,168,56,0.12); color: var(--accent-dark); margin-top: 12px; }
        /* Feature Grid */
        .feature-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
        /* Info List */
        .info-list { display: flex; flex-direction: column; gap: 16px; }
        .info-item { display: flex; align-items: center; gap: 16px; padding: 16px 20px; background: var(--bg-white); border-radius: var(--radius-sm); border: 1px solid var(--border); transition: var(--transition); }
        .info-item:hover { border-color: var(--accent); box-shadow: 0 4px 16px rgba(232,168,56,0.10); }
        .info-item i { font-size: 1.2rem; color: var(--accent); width: 32px; text-align: center; flex-shrink: 0; }
        .info-item .info-content { flex: 1; }
        .info-item .info-content h4 { font-size: 1rem; font-weight: 600; color: var(--primary); margin-bottom: 2px; }
        .info-item .info-content p { font-size: 0.9rem; color: var(--text-muted); margin: 0; }
        .info-item .info-tag { font-size: 0.8rem; color: var(--accent-dark); background: rgba(232,168,56,0.10); padding: 2px 12px; border-radius: 12px; font-weight: 500; flex-shrink: 0; }
        /* Post Cards (CMS) */
        .post-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
        .post-card { background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; transition: var(--transition); border: 1px solid var(--border); display: flex; flex-direction: column; }
        .post-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
        .post-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
        .post-cat { font-size: 0.8rem; font-weight: 600; color: var(--accent-dark); background: rgba(232,168,56,0.12); padding: 4px 14px; border-radius: 20px; display: inline-block; margin-bottom: 10px; align-self: flex-start; }
        .post-card h3 { font-size: 1.15rem; font-weight: 700; color: var(--primary); margin-bottom: 8px; line-height: 1.4; }
        .post-card p { font-size: 0.92rem; color: var(--text-light); line-height: 1.6; margin-bottom: 12px; flex: 1; }
        .post-meta { display: flex; align-items: center; gap: 16px; font-size: 0.82rem; color: var(--text-muted); margin-top: auto; padding-top: 12px; border-top: 1px solid var(--border); }
        .post-meta i { margin-right: 4px; }
        .empty-list { text-align: center; padding: 40px 20px; color: var(--text-muted); font-size: 1rem; background: var(--bg-white); border-radius: var(--radius); border: 1px dashed var(--border); }
        /* Process / Timeline */
        .process-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; position: relative; }
        .process-step { text-align: center; padding: 32px 20px; background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); transition: var(--transition); position: relative; }
        .process-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .step-number { width: 48px; height: 48px; border-radius: 50%; background: var(--primary); color: #ffffff; font-weight: 800; font-size: 1.2rem; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
        .process-step h4 { font-size: 1.1rem; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
        .process-step p { font-size: 0.9rem; color: var(--text-light); margin: 0; }
        /* FAQ */
        .faq-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item { background: var(--bg-white); border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; transition: var(--transition); }
        .faq-item:hover { border-color: var(--accent); }
        .faq-question { padding: 20px 24px; font-weight: 600; font-size: 1.05rem; color: var(--primary); cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px; background: none; border: none; width: 100%; text-align: left; transition: var(--transition); }
        .faq-question i { font-size: 1.2rem; color: var(--accent); transition: var(--transition); flex-shrink: 0; }
        .faq-question.open i { transform: rotate(180deg); }
        .faq-answer { padding: 0 24px 20px; color: var(--text-light); line-height: 1.7; display: none; font-size: 0.95rem; }
        .faq-answer.open { display: block; }
        /* CTA */
        .cta-section { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); padding: 80px 0; text-align: center; position: relative; overflow: hidden; }
        .cta-section::before { content: ''; position: absolute; top: 0; right: 0; width: 400px; height: 400px; background: radial-gradient(circle, rgba(232,168,56,0.12) 0%, transparent 70%); }
        .cta-section h2 { font-size: 2.4rem; font-weight: 800; color: #ffffff; margin-bottom: 16px; }
        .cta-section p { font-size: 1.1rem; color: rgba(255,255,255,0.80); max-width: 600px; margin: 0 auto 32px; }
        .cta-section .btn-primary { font-size: 1.1rem; padding: 16px 44px; }
        /* Footer */
        .site-footer { background: var(--bg-dark); color: #b0b8d0; padding: 56px 0 28px; }
        .footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo { color: #ffffff; margin-bottom: 12px; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 300px; }
        .footer-col h4 { font-size: 1rem; font-weight: 700; color: #ffffff; margin-bottom: 16px; }
        .footer-col a { display: block; padding: 4px 0; font-size: 0.9rem; color: #b0b8d0; }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: 0.85rem; }
        .footer-bottom a { color: #b0b8d0; }
        .footer-bottom a:hover { color: var(--accent); }
        /* Responsive */
        @media (max-width: 1024px) {
            .hero h1 { font-size: 2.6rem; }
            .section-title { font-size: 1.9rem; }
            .feature-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
            .post-list { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
        }
        @media (max-width: 768px) {
            .nav-list { display: none; }
            .hamburger { display: flex; }
            .header-inner { padding: 0 16px; }
            .hero { padding: 120px 0 60px; }
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 24px; }
            .hero-stat { flex: 1 1 40%; }
            .hero-stat h3 { font-size: 1.6rem; }
            .section-padding { padding: 56px 0; }
            .section-title { font-size: 1.6rem; }
            .section-subtitle { font-size: 0.95rem; margin-bottom: 32px; }
            .feature-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .post-list { grid-template-columns: 1fr; }
            .process-steps { grid-template-columns: 1fr 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
            .cta-section h2 { font-size: 1.8rem; }
            .btn-lg { padding: 14px 32px; font-size: 1rem; }
        }
        @media (max-width: 520px) {
            :root { --nav-height: 60px; }
            .hero h1 { font-size: 1.6rem; }
            .hero p { font-size: 0.92rem; }
            .hero-actions { flex-direction: column; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .hero-stats { flex-direction: column; gap: 16px; }
            .hero-stat { flex: 1 1 100%; }
            .feature-grid { grid-template-columns: 1fr; }
            .process-steps { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .section-title { font-size: 1.4rem; }
            .card { padding: 20px 16px; }
            .container { padding: 0 16px; }
            .logo { font-size: 1.2rem; }
            .mobile-nav a { font-size: 0.95rem; padding: 10px 14px; }
            .faq-question { font-size: 0.95rem; padding: 16px 18px; }
            .faq-answer { padding: 0 18px 16px; font-size: 0.9rem; }
        }
        @media (max-width: 400px) {
            .hero h1 { font-size: 1.4rem; }
            .btn { padding: 12px 24px; font-size: 0.9rem; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0b1a33;
            --primary-light: #132a4a;
            --primary-dark: #070f1e;
            --accent: #d4a017;
            --accent-light: #f0c94b;
            --accent-dark: #b8860b;
            --bg-body: #f4f6f9;
            --bg-card: #ffffff;
            --bg-dark: #0b1a33;
            --text-primary: #0b1a33;
            --text-light: #4a5568;
            --text-white: #ffffff;
            --text-muted: #8899aa;
            --border-light: #e2e8f0;
            --border-accent: #d4a017;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(11,26,51,0.06);
            --shadow-md: 0 8px 30px rgba(11,26,51,0.10);
            --shadow-lg: 0 20px 60px rgba(11,26,51,0.14);
            --shadow-glow: 0 0 30px rgba(212,160,23,0.20);
            --transition: all 0.30s cubic-bezier(0.4, 0, 0.2, 1);
            --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
            --spacing-section: 5rem;
            --spacing-block: 3rem;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-body);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        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; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); font-weight: 700; line-height: 1.25; color: var(--text-primary); }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media screen and (max-width: 640px) {
            .container { padding: 0 16px; }
        }

        /* ===== 导航 — 透明玻璃沉浸 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255,255,255,0.72);
            backdrop-filter: blur(24px) saturate(1.2);
            -webkit-backdrop-filter: blur(24px) saturate(1.2);
            border-bottom: 1px solid rgba(255,255,255,0.25);
            box-shadow: 0 4px 20px rgba(11,26,51,0.04);
            transition: background 0.4s ease, box-shadow 0.4s ease;
        }
        .site-header.scrolled {
            background: rgba(255,255,255,0.92);
            box-shadow: 0 8px 40px rgba(11,26,51,0.08);
            border-bottom: 1px solid rgba(226,232,240,0.6);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }
        .logo i {
            color: var(--accent);
            font-size: 1.6rem;
            transition: var(--transition);
        }
        .logo:hover i { transform: rotate(-8deg) scale(1.05); }
        .logo:hover { color: var(--primary); }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-list a:hover {
            color: var(--primary);
            background: rgba(11,26,51,0.05);
        }
        .nav-list a.active {
            color: var(--primary);
            background: rgba(212,160,23,0.12);
            font-weight: 600;
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }
        .nav-list a.nav-cta {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 600;
            padding: 8px 22px;
            border-radius: 30px;
            box-shadow: 0 4px 14px rgba(212,160,23,0.30);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a.nav-cta:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(212,160,23,0.35);
        }
        .nav-list a.nav-cta i { font-size: 0.85rem; transition: var(--transition); }
        .nav-list a.nav-cta:hover i { transform: translateX(4px); }

        /* 移动端汉堡 */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 6px;
            background: none;
            border: none;
            z-index: 1100;
        }
        .hamburger span {
            width: 28px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

        @media screen and (max-width: 820px) {
            .hamburger { display: flex; }
            .nav-list {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: rgba(255,255,255,0.96);
                backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: flex-start;
                padding: 100px 32px 40px;
                gap: 6px;
                box-shadow: -8px 0 40px rgba(11,26,51,0.10);
                transition: right 0.35s ease;
                border-left: 1px solid rgba(226,232,240,0.5);
            }
            .nav-list.open { right: 0; }
            .nav-list a {
                width: 100%;
                font-size: 1.05rem;
                padding: 12px 16px;
            }
            .nav-list a.active::after { display: none; }
            .nav-list a.nav-cta {
                margin-top: 12px;
                justify-content: center;
            }
        }
        @media screen and (max-width: 480px) {
            .logo { font-size: 1.1rem; }
            .logo i { font-size: 1.3rem; }
            .header-inner { padding: 0 16px; }
        }

        /* ===== Hero ===== */
        .hero-category {
            padding: 140px 0 70px;
            background: linear-gradient(145deg, #0b1a33 0%, #132a4a 60%, #1a3a5c 100%);
            position: relative;
            overflow: hidden;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(212,160,23,0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-category::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-category .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .hero-category-left h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-category-left h1 span {
            color: var(--accent-light);
            background: linear-gradient(135deg, #f0c94b, #d4a017);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-category-left p {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.75);
            max-width: 520px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1rem;
            border-radius: 40px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 6px 24px rgba(212,160,23,0.30);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(212,160,23,0.35);
            color: var(--primary-dark);
        }
        .btn-primary i { transition: var(--transition); }
        .btn-primary:hover i { transform: translateX(4px); }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            border-radius: 40px;
            border: 2px solid rgba(255,255,255,0.30);
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-outline-light:hover {
            border-color: var(--accent);
            background: rgba(212,160,23,0.10);
            color: var(--accent-light);
            transform: translateY(-2px);
        }
        .hero-category-right {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .hero-stat-card {
            background: rgba(255,255,255,0.06);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: var(--transition);
        }
        .hero-stat-card:hover {
            background: rgba(255,255,255,0.10);
            transform: translateY(-4px);
            border-color: rgba(212,160,23,0.20);
        }
        .hero-stat-card .number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.2;
        }
        .hero-stat-card .label {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.65);
            margin-top: 6px;
        }
        .hero-stat-card:first-child { grid-column: 1 / -1; }

        @media screen and (max-width: 900px) {
            .hero-category .container {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-category-left h1 { font-size: 2.2rem; }
            .hero-category-left p { font-size: 1rem; }
            .hero-category-right { max-width: 500px; margin: 0 auto; }
        }
        @media screen and (max-width: 520px) {
            .hero-category { padding: 120px 0 50px; }
            .hero-category-left h1 { font-size: 1.7rem; }
            .hero-actions { flex-direction: column; align-items: stretch; }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline-light { justify-content: center; }
            .hero-stat-card .number { font-size: 1.7rem; }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-alt {
            background: var(--bg-card);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-heading {
            text-align: center;
            max-width: 700px;
            margin: 0 auto var(--spacing-block);
        }
        .section-heading h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-heading p {
            font-size: 1.05rem;
            color: var(--text-light);
            line-height: 1.7;
        }
        .section-dark .section-heading h2 { color: var(--text-white); }
        .section-dark .section-heading p { color: rgba(255,255,255,0.65); }

        .section-subtitle {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 12px;
            background: rgba(212,160,23,0.10);
            padding: 4px 16px;
            border-radius: 30px;
        }

        @media screen and (max-width: 640px) {
            .section { --spacing-section: 3.2rem; }
            .section-heading h2 { font-size: 1.6rem; }
        }

        /* ===== 特色卡片网格 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 36px 28px 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(212,160,23,0.20);
        }
        .feature-card .icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            background: linear-gradient(135deg, rgba(212,160,23,0.10), rgba(212,160,23,0.04));
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--accent);
            transition: var(--transition);
        }
        .feature-card:hover .icon {
            background: linear-gradient(135deg, rgba(212,160,23,0.18), rgba(212,160,23,0.08));
            transform: scale(1.05);
        }
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        @media screen and (max-width: 820px) {
            .feature-grid { grid-template-columns: 1fr 1fr; }
        }
        @media screen and (max-width: 520px) {
            .feature-grid { grid-template-columns: 1fr; }
            .feature-card { padding: 28px 20px; }
        }

        /* ===== 赛事分类 ===== */
        .sport-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .sport-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 16px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: var(--transition);
            cursor: default;
        }
        .sport-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: rgba(212,160,23,0.25);
        }
        .sport-card .sport-icon {
            font-size: 2.4rem;
            color: var(--accent);
            margin-bottom: 12px;
            transition: var(--transition);
        }
        .sport-card:hover .sport-icon { transform: scale(1.1); }
        .sport-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .sport-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .sport-card .badge {
            display: inline-block;
            margin-top: 12px;
            padding: 3px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(212,160,23,0.10);
            border-radius: 20px;
        }

        @media screen and (max-width: 820px) {
            .sport-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media screen and (max-width: 480px) {
            .sport-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
            .sport-card { padding: 20px 12px; }
        }

        /* ===== 热门赛事 ===== */
        .event-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .event-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 20px;
            transition: var(--transition);
        }
        .event-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: rgba(212,160,23,0.15);
        }
        .event-card .event-badge {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-light);
        }
        .event-card .event-info h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .event-card .event-info p {
            font-size: 0.88rem;
            color: var(--text-muted);
        }
        .event-card .event-meta {
            margin-left: auto;
            text-align: right;
            flex-shrink: 0;
        }
        .event-card .event-meta .tag {
            display: inline-block;
            padding: 3px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(212,160,23,0.10);
            border-radius: 20px;
        }
        .event-card .event-meta .date {
            display: block;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 6px;
        }

        @media screen and (max-width: 820px) {
            .event-list { grid-template-columns: 1fr; }
        }
        @media screen and (max-width: 480px) {
            .event-card { flex-wrap: wrap; gap: 12px; padding: 18px; }
            .event-card .event-meta { margin-left: 0; text-align: left; width: 100%; }
        }

        /* ===== 平台优势 / 数据 ===== */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .advantage-item {
            text-align: center;
            padding: 20px 12px;
        }
        .advantage-item .num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.2;
        }
        .advantage-item .num-label {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.7);
            margin-top: 6px;
        }
        .advantage-item .desc {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
            margin-top: 10px;
            line-height: 1.6;
        }

        @media screen and (max-width: 820px) {
            .advantage-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
        }
        @media screen and (max-width: 480px) {
            .advantage-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .advantage-item .num { font-size: 2rem; }
        }

        /* ===== 流程/步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            counter-reset: step;
        }
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            position: relative;
            transition: var(--transition);
            text-align: center;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-card .step-number {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark);
            font-size: 1.2rem;
            font-weight: 800;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .step-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        @media screen and (max-width: 820px) {
            .steps-grid { grid-template-columns: 1fr 1fr; }
        }
        @media screen and (max-width: 520px) {
            .steps-grid { grid-template-columns: 1fr; }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(212,160,23,0.20); }
        .faq-question {
            width: 100%;
            padding: 18px 24px;
            background: none;
            border: none;
            text-align: left;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--accent); }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i { transform: rotate(180deg); color: var(--accent); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
        }
        .faq-item.active .faq-answer {
            max-height: 260px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(145deg, #0b1a33, #1a3a5c);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(212,160,23,0.06) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
            position: relative;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.65);
            max-width: 520px;
            margin: 0 auto 32px;
            position: relative;
        }
        .cta-section .btn-primary { font-size: 1.1rem; padding: 16px 40px; position: relative; }

        @media screen and (max-width: 640px) {
            .cta-section { padding: 60px 0; }
            .cta-section h2 { font-size: 1.6rem; }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #070f1e;
            color: rgba(255,255,255,0.65);
            padding: 60px 0 30px;
            border-top: 2px solid rgba(212,160,23,0.08);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: var(--text-white);
            font-size: 1.3rem;
            margin-bottom: 16px;
            display: inline-flex;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.55);
            max-width: 320px;
        }
        .footer-col h4 {
            color: var(--text-white);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.55);
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }
        .footer-col a i { width: 20px; margin-right: 6px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom a:hover { color: var(--accent-light); }

        @media screen and (max-width: 820px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media screen and (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== 移动端遮罩 ===== */
        .nav-overlay {
            display: none;
            position: fixed;
            top: 0; left: 0;
            width: 100%; height: 100%;
            background: rgba(0,0,0,0.25);
            z-index: 999;
        }
        .nav-overlay.active { display: block; }
        @media screen and (max-width: 820px) {
            .nav-overlay.active { display: block; }
        }

        /* ===== 辅助 ===== */
        .text-center { text-align: center; }
        .mt-1 { margin-top: 1rem; }
        .mt-2 { margin-top: 2rem; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }

        /* ===== Foundation 覆写 ===== */
        .grid-container { max-width: var(--max-width); padding-left: 24px; padding-right: 24px; }
        @media screen and (max-width: 640px) {
            .grid-container { padding-left: 16px; padding-right: 16px; }
        }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: var(--bg-body); }
        ::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 6px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--text-light); }

        /* ===== 可访问性 ===== */
        a:focus-visible, button:focus-visible, input:focus-visible {
            outline: 3px solid rgba(212,160,23,0.5);
            outline-offset: 2px;
        }

        /* ===== 文章/内容页通用 ===== */
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 20px 0 0;
        }
        .breadcrumb a { color: var(--text-muted); }
        .breadcrumb a:hover { color: var(--accent); }
        .breadcrumb span { color: var(--text-light); }
        .breadcrumb i { font-size: 0.6rem; color: var(--text-muted); margin: 0 4px; }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f1b3d;
            --primary-light: #1a2d5e;
            --accent: #e8b830;
            --accent-hover: #d4a620;
            --accent-light: #fdf4d6;
            --bg-body: #f8f9fc;
            --bg-card: #ffffff;
            --bg-alt: #eef1f7;
            --bg-hero: #0f1b3d;
            --text-main: #1e2a3a;
            --text-secondary: #4a5a6e;
            --text-light: #8a9aae;
            --text-white: #f0f2f6;
            --border-color: #e2e6ed;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 1px 4px rgba(0,0,0,0.05), 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.07), 0 8px 32px rgba(0,0,0,0.05);
            --shadow-lg: 0 12px 48px rgba(0,0,0,0.10);
            --font-sans: '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;
            --read-width: 780px;
        }

        /* ===== Reset & Base ===== */
        *,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.7;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); }
        a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 3px; }
        button, input, textarea { font-family: inherit; }
        ul, ol { list-style: none; }

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

        /* ===== 导航 ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 100;
            background: rgba(15,27,61,0.78);
            backdrop-filter: blur(18px) saturate(1.3);
            -webkit-backdrop-filter: blur(18px) saturate(1.3);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            box-shadow: 0 2px 20px rgba(0,0,0,0.08);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .site-header.scrolled {
            background: rgba(15,27,61,0.94);
            box-shadow: 0 4px 30px rgba(0,0,0,0.15);
        }
        .header-inner {
            display: flex; align-items: center; justify-content: space-between;
            height: 72px; gap: 16px;
        }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.5rem; font-weight: 700; color: var(--text-white);
            letter-spacing: -0.3px; white-space: nowrap;
            transition: opacity var(--transition);
        }
        .logo i { color: var(--accent); font-size: 1.6rem; }
        .logo span { background: linear-gradient(135deg, #f0f2f6 0%, #c8d0dc 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .logo:hover { opacity: 0.88; }
        .nav-list { display: flex; align-items: center; gap: 8px; }
        .nav-list a {
            color: rgba(240,242,246,0.75); font-size: 0.95rem; font-weight: 500;
            padding: 8px 18px; border-radius: 40px; transition: all var(--transition);
            letter-spacing: 0.2px; white-space: nowrap;
        }
        .nav-list a:hover { color: #fff; background: rgba(255,255,255,0.08); }
        .nav-list a.active { color: #fff; background: rgba(232,184,48,0.18); box-shadow: inset 0 0 0 1px rgba(232,184,48,0.25); }
        .nav-list a.nav-cta {
            background: var(--accent); color: var(--primary); font-weight: 600;
            padding: 8px 24px; border-radius: 40px; box-shadow: 0 2px 12px rgba(232,184,48,0.3);
        }
        .nav-list a.nav-cta:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 4px 20px rgba(232,184,48,0.4); }
        .nav-list a.nav-cta i { margin-right: 6px; font-size: 0.8rem; }
        .nav-toggle { display: none; background: none; border: none; color: var(--text-white); font-size: 1.6rem; cursor: pointer; padding: 4px 8px; border-radius: 6px; }
        @media screen and (max-width: 820px) {
            .nav-list { display: none; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; background: rgba(15,27,61,0.96); backdrop-filter: blur(20px); padding: 20px 24px; border-bottom: 1px solid rgba(255,255,255,0.06); gap: 6px; }
            .nav-list.open { display: flex; }
            .nav-list a { width: 100%; text-align: center; padding: 12px 16px; font-size: 1.05rem; }
            .nav-list a.nav-cta { margin-top: 8px; }
            .nav-toggle { display: block; }
        }
        @media screen and (max-width: 520px) {
            .header-inner { height: 64px; }
            .logo { font-size: 1.2rem; }
            .logo i { font-size: 1.3rem; }
            .nav-list { top: 64px; }
        }

        /* ===== 文章 Hero ===== */
        .article-hero {
            padding: 140px 0 60px 0;
            background: linear-gradient(160deg, #0f1b3d 0%, #1a2d5e 50%, #0f1b3d 100%);
            position: relative; overflow: hidden;
        }
        .article-hero::before {
            content: ''; position: absolute; inset: 0;
            background: radial-gradient(ellipse at 20% 60%, rgba(232,184,48,0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .article-hero .container { position: relative; z-index: 2; max-width: var(--read-width); }
        .article-meta {
            display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .category-badge {
            display: inline-block; padding: 6px 18px; border-radius: 40px;
            background: rgba(232,184,48,0.18); color: var(--accent); font-size: 0.85rem;
            font-weight: 600; letter-spacing: 0.5px; border: 1px solid rgba(232,184,48,0.2);
        }
        .article-date {
            color: rgba(240,242,246,0.6); font-size: 0.9rem;
            display: flex; align-items: center; gap: 6px;
        }
        .article-date i { font-size: 0.8rem; }
        .article-hero h1 {
            font-size: 2.8rem; font-weight: 700; line-height: 1.2; letter-spacing: -0.5px;
            color: var(--text-white); margin-bottom: 18px;
        }
        .article-desc {
            font-size: 1.15rem; color: rgba(240,242,246,0.7); line-height: 1.7;
            max-width: 90%;
        }
        @media screen and (max-width: 768px) {
            .article-hero { padding: 110px 0 40px 0; }
            .article-hero h1 { font-size: 2rem; }
            .article-desc { font-size: 1rem; max-width: 100%; }
            .article-meta { gap: 10px; }
        }
        @media screen and (max-width: 520px) {
            .article-hero h1 { font-size: 1.6rem; }
            .article-desc { font-size: 0.95rem; }
        }

        /* ===== 文章正文 ===== */
        .article-content-wrap {
            padding: 60px 0 40px 0; background: var(--bg-body);
        }
        .article-content-wrap .container { max-width: var(--read-width); }
        .content-body {
            font-size: 1.08rem; line-height: 1.9; color: var(--text-main);
        }
        .content-body p { margin-bottom: 1.6em; }
        .content-body h2, .content-body h3, .content-body h4 {
            margin-top: 2em; margin-bottom: 0.8em; font-weight: 700; color: var(--primary); letter-spacing: -0.2px;
        }
        .content-body h2 { font-size: 1.6rem; border-bottom: 2px solid var(--border-color); padding-bottom: 0.4em; }
        .content-body h3 { font-size: 1.3rem; }
        .content-body img { border-radius: var(--radius-md); margin: 1.8em 0; box-shadow: var(--shadow-sm); }
        .content-body blockquote {
            border-left: 4px solid var(--accent); padding: 16px 24px; margin: 1.8em 0;
            background: var(--bg-alt); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic; color: var(--text-secondary);
        }
        .content-body ul, .content-body ol { margin: 1.2em 0; padding-left: 1.6em; }
        .content-body ul li { list-style: disc; margin-bottom: 0.4em; }
        .content-body ol li { list-style: decimal; margin-bottom: 0.4em; }
        .content-body a { color: var(--primary-light); border-bottom: 1px solid var(--accent); font-weight: 500; }
        .content-body a:hover { color: var(--accent); }
        .content-body code {
            background: var(--bg-alt); padding: 2px 10px; border-radius: 4px;
            font-size: 0.92em; color: var(--primary-light); border: 1px solid var(--border-color);
        }
        .content-body pre { background: var(--primary); color: #e8ecf1; padding: 20px 24px; border-radius: var(--radius-md); overflow-x: auto; margin: 1.8em 0; }
        .content-body pre code { background: transparent; color: inherit; border: none; padding: 0; }
        @media screen and (max-width: 768px) {
            .content-body { font-size: 1rem; }
            .content-body h2 { font-size: 1.35rem; }
            .content-body h3 { font-size: 1.15rem; }
        }

        /* ===== 文章标签 ===== */
        .article-tags-bar {
            padding: 20px 0 30px 0; background: var(--bg-body);
            border-bottom: 1px solid var(--border-color);
        }
        .article-tags-bar .container { max-width: var(--read-width); display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
        .tag-label { font-size: 0.9rem; color: var(--text-secondary); font-weight: 500; }
        .tag-item {
            display: inline-block; padding: 4px 16px; background: var(--bg-alt); border-radius: 40px;
            font-size: 0.85rem; color: var(--text-secondary); border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .tag-item:hover { background: var(--accent-light); color: var(--primary); border-color: var(--accent); }

        /* ===== 文章导航 ===== */
        .article-nav-section {
            padding: 30px 0 40px 0; background: var(--bg-body);
        }
        .article-nav-section .container { max-width: var(--read-width); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
        .article-nav-back {
            display: inline-flex; align-items: center; gap: 8px; padding: 10px 24px;
            background: var(--bg-card); border-radius: 40px; border: 1px solid var(--border-color);
            font-weight: 500; color: var(--text-secondary); transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .article-nav-back:hover { border-color: var(--accent); color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-1px); }
        .article-nav-back i { font-size: 0.85rem; }

        /* ===== 相关文章 ===== */
        .related-posts {
            padding: 60px 0; background: var(--bg-alt);
        }
        .related-posts .section-title {
            font-size: 1.8rem; font-weight: 700; color: var(--primary); margin-bottom: 36px;
            text-align: center; letter-spacing: -0.3px;
        }
        .related-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
        }
        .related-card {
            background: var(--bg-card); border-radius: var(--radius-md); overflow: hidden;
            border: 1px solid var(--border-color); box-shadow: var(--shadow-sm);
            transition: all var(--transition); display: flex; flex-direction: column;
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(232,184,48,0.2); }
        .related-card .card-body { padding: 20px 22px 22px; flex: 1; display: flex; flex-direction: column; }
        .related-card .card-cat {
            font-size: 0.8rem; color: var(--accent); font-weight: 600;
            text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px;
        }
        .related-card .card-title {
            font-size: 1.1rem; font-weight: 600; color: var(--text-main); line-height: 1.4;
            margin-bottom: 10px; transition: color var(--transition);
            display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
        }
        .related-card:hover .card-title { color: var(--primary-light); }
        .related-card .card-excerpt {
            font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; flex: 1;
            display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
            margin-bottom: 12px;
        }
        .related-card .card-meta {
            display: flex; align-items: center; gap: 12px; font-size: 0.82rem; color: var(--text-light);
            border-top: 1px solid var(--border-color); padding-top: 14px; margin-top: auto;
        }
        .related-card .card-meta i { margin-right: 4px; font-size: 0.75rem; }
        @media screen and (max-width: 900px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media screen and (max-width: 560px) {
            .related-grid { grid-template-columns: 1fr; }
            .related-posts .section-title { font-size: 1.5rem; }
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 72px 0; background: linear-gradient(150deg, #0f1b3d 0%, #1a2d5e 100%);
            text-align: center; position: relative; overflow: hidden;
        }
        .cta-section::before {
            content: ''; position: absolute; inset: 0;
            background: radial-gradient(ellipse at center 30%, rgba(232,184,48,0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 {
            font-size: 2.2rem; font-weight: 700; color: var(--text-white); margin-bottom: 14px;
            letter-spacing: -0.4px;
        }
        .cta-section p {
            font-size: 1.15rem; color: rgba(240,242,246,0.7); max-width: 600px; margin: 0 auto 32px;
        }
        .cta-section .cta-btn {
            display: inline-flex; align-items: center; gap: 10px; padding: 16px 40px;
            background: var(--accent); color: var(--primary); font-size: 1.1rem; font-weight: 700;
            border-radius: 60px; box-shadow: 0 4px 24px rgba(232,184,48,0.3);
            transition: all var(--transition); border: none; cursor: pointer;
        }
        .cta-section .cta-btn:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 36px rgba(232,184,48,0.4); }
        .cta-section .cta-btn i { font-size: 0.9rem; transition: transform var(--transition); }
        .cta-section .cta-btn:hover i { transform: translateX(4px); }
        @media screen and (max-width: 768px) {
            .cta-section { padding: 52px 0; }
            .cta-section h2 { font-size: 1.7rem; }
            .cta-section p { font-size: 1rem; }
            .cta-section .cta-btn { padding: 14px 32px; font-size: 1rem; }
        }

        /* ===== 内容未找到 ===== */
        .not-found-block {
            padding: 80px 0; text-align: center; background: var(--bg-body);
        }
        .not-found-block .container { max-width: 600px; }
        .not-found-block i { font-size: 3.6rem; color: var(--text-light); margin-bottom: 20px; }
        .not-found-block h2 { font-size: 1.8rem; color: var(--primary); margin-bottom: 12px; }
        .not-found-block p { color: var(--text-secondary); font-size: 1.1rem; margin-bottom: 24px; }
        .not-found-block .back-home {
            display: inline-flex; align-items: center; gap: 8px; padding: 12px 32px;
            background: var(--primary); color: #fff; border-radius: 40px; font-weight: 600;
            transition: all var(--transition);
        }
        .not-found-block .back-home:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0a122e; color: rgba(240,242,246,0.7); padding: 56px 0 0 0;
            border-top: 1px solid rgba(255,255,255,0.04);
        }
        .footer-grid {
            display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 40px;
            padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .footer-brand .logo { font-size: 1.3rem; margin-bottom: 14px; display: inline-flex; }
        .footer-brand p { font-size: 0.92rem; line-height: 1.7; color: rgba(240,242,246,0.55); max-width: 320px; }
        .footer-col h4 { font-size: 0.95rem; font-weight: 600; color: var(--text-white); margin-bottom: 16px; letter-spacing: 0.3px; }
        .footer-col a {
            display: block; color: rgba(240,242,246,0.55); font-size: 0.9rem; padding: 4px 0;
            transition: all var(--transition);
        }
        .footer-col a:hover { color: var(--accent); transform: translateX(3px); }
        .footer-col a i { width: 20px; margin-right: 6px; }
        .footer-bottom {
            display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
            padding: 20px 0; font-size: 0.85rem; color: rgba(240,242,246,0.4);
        }
        .footer-bottom a { color: rgba(240,242,246,0.5); }
        .footer-bottom a:hover { color: var(--accent); }
        .footer-bottom span { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
        @media screen and (max-width: 900px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
            .footer-brand { grid-column: 1 / -1; }
            .footer-brand p { max-width: 100%; }
        }
        @media screen and (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== 通用工具 ===== */
        .text-center { text-align: center; }
        .mt-1 { margin-top: 12px; }
        .mb-1 { margin-bottom: 12px; }
        .gap-8 { gap: 8px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

        /* ===== 打印 ===== */
        @media print {
            .site-header, .cta-section, .related-posts, .article-tags-bar, .article-nav-section, .site-footer { display: none; }
            .article-hero { padding: 40px 0 20px 0; background: #fff; }
            .article-hero h1 { color: #000; }
            .article-desc { color: #555; }
            .article-content-wrap { padding: 20px 0; }
            .content-body { font-size: 12pt; }
        }