/* roulang page: index */
:root {
  --primary: #1a2a6c;
  --primary-dark: #0f0c29;
  --primary-light: #2d4a8e;
  --secondary: #e8841d;
  --accent: #f5a623;
  --accent-light: #ffd700;
  --bg-light: #f8f9fc;
  --bg-white: #ffffff;
  --bg-dark: #0f0c29;
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a6a;
  --text-muted: #7a7a9a;
  --text-light: #ffffff;
  --border-color: #e8e8f0;
  --border-light: #f0f0f8;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.12);
  --shadow-hover: 0 16px 48px rgba(0,0,0,0.18);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
  --header-height: 76px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-family); color: var(--text-primary); background: var(--bg-light); line-height: 1.7; font-size: 16px; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
ul, ol { list-style: none; }
button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-title { font-size: 2.2rem; font-weight: 700; text-align: center; margin-bottom: 12px; letter-spacing: -0.5px; color: var(--text-primary); }
.section-subtitle { font-size: 1.1rem; text-align: center; color: var(--text-secondary); margin-bottom: 48px; max-width: 640px; margin-left: auto; margin-right: auto; }
.section-divider { width: 60px; height: 4px; background: linear-gradient(135deg, var(--secondary), var(--accent)); border-radius: 4px; margin: 0 auto 16px auto; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; border-radius: 50px; font-weight: 600; font-size: 1rem; cursor: pointer; transition: var(--transition); border: none; letter-spacing: 0.3px; }
.btn-primary { background: linear-gradient(135deg, var(--secondary), var(--accent)); color: var(--text-light); box-shadow: 0 8px 24px rgba(232,132,29,0.35); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 36px rgba(232,132,29,0.45); }
.btn-outline { background: transparent; color: var(--text-light); border: 2px solid rgba(255,255,255,0.6); }
.btn-outline:hover { background: rgba(255,255,255,0.12); border-color: var(--text-light); transform: translateY(-3px); }
.btn-lg { padding: 18px 44px; font-size: 1.15rem; }
.card { background: var(--bg-white); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); transition: var(--transition); overflow: hidden; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.badge { display: inline-block; padding: 4px 14px; border-radius: 50px; font-size: 0.8rem; font-weight: 500; background: rgba(232,132,29,0.12); color: var(--secondary); }
.tag { display: inline-block; padding: 6px 16px; border-radius: 50px; font-size: 0.85rem; font-weight: 500; background: var(--bg-light); color: var(--text-secondary); border: 1px solid var(--border-color); transition: var(--transition); }
.tag:hover { background: var(--secondary); color: var(--text-light); border-color: var(--secondary); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 28px; }
.grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 24px; }
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }

/* ===== Header & Nav ===== */
.header { position: fixed; top: 0; left: 0; width: 100%; height: var(--header-height); background: rgba(15,12,41,0.92); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid rgba(255,255,255,0.06); z-index: 1000; transition: var(--transition); }
.header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--text-light); letter-spacing: 0.5px; background: linear-gradient(135deg, var(--accent-light), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.logo span { font-weight: 300; font-size: 0.9rem; -webkit-text-fill-color: rgba(255,255,255,0.5); margin-left: 6px; }
.nav { display: flex; align-items: center; gap: 8px; }
.nav a { padding: 8px 20px; border-radius: 50px; color: rgba(255,255,255,0.75); font-weight: 500; font-size: 0.95rem; transition: var(--transition); position: relative; }
.nav a:hover { color: var(--text-light); background: rgba(255,255,255,0.08); }
.nav a.active { color: var(--text-light); background: rgba(232,132,29,0.2); }
.nav a.active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--secondary); border-radius: 4px; }
.nav-cta { padding: 10px 28px !important; background: linear-gradient(135deg, var(--secondary), var(--accent)) !important; color: var(--text-light) !important; border-radius: 50px !important; font-weight: 600 !important; box-shadow: 0 4px 16px rgba(232,132,29,0.3); }
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(232,132,29,0.45) !important; background: linear-gradient(135deg, var(--accent), var(--secondary)) !important; }
.mobile-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 6px; background: transparent; }
.mobile-toggle span { width: 26px; height: 2.5px; background: var(--text-light); border-radius: 4px; transition: var(--transition); }

/* ===== Hero ===== */
.hero { position: relative; min-height: 92vh; display: flex; align-items: center; justify-content: center; background: var(--bg-dark); overflow: hidden; padding-top: var(--header-height); }
.hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat; opacity: 0.45; transform: scale(1.05); }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(15,12,41,0.88) 0%, rgba(26,42,108,0.70) 50%, rgba(15,12,41,0.88) 100%); }
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 820px; padding: 40px 24px; }
.hero-badge { display: inline-block; padding: 6px 24px; border-radius: 50px; background: rgba(255,215,0,0.15); color: var(--accent-light); font-size: 0.9rem; font-weight: 500; border: 1px solid rgba(255,215,0,0.2); margin-bottom: 24px; backdrop-filter: blur(8px); }
.hero h1 { font-size: 3.6rem; font-weight: 800; color: var(--text-light); line-height: 1.2; margin-bottom: 20px; letter-spacing: -1px; }
.hero h1 span { background: linear-gradient(135deg, var(--accent-light), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p { font-size: 1.2rem; color: rgba(255,255,255,0.7); max-width: 600px; margin: 0 auto 36px auto; line-height: 1.8; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== Intro ===== */
.intro { background: var(--bg-white); }
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.intro-text h2 { font-size: 2rem; font-weight: 700; margin-bottom: 16px; color: var(--text-primary); }
.intro-text p { color: var(--text-secondary); line-height: 1.9; margin-bottom: 16px; font-size: 1.05rem; }
.intro-text ul { margin-top: 20px; }
.intro-text ul li { display: flex; align-items: flex-start; gap: 12px; padding: 10px 0; color: var(--text-secondary); font-size: 1rem; }
.intro-text ul li i { color: var(--secondary); font-size: 1.1rem; margin-top: 4px; flex-shrink: 0; }
.intro-image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.intro-image img { width: 100%; height: 400px; object-fit: cover; }

/* ===== Categories ===== */
.categories { background: var(--bg-light); }
.cat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.cat-card { position: relative; border-radius: var(--radius-md); overflow: hidden; background: var(--bg-white); box-shadow: var(--shadow-sm); transition: var(--transition); min-height: 240px; display: flex; flex-direction: column; }
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.cat-card-img { height: 180px; overflow: hidden; }
.cat-card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.cat-card:hover .cat-card-img img { transform: scale(1.05); }
.cat-card-body { padding: 20px 24px 24px; flex: 1; display: flex; flex-direction: column; }
.cat-card-body h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 8px; color: var(--text-primary); }
.cat-card-body p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7; flex: 1; }
.cat-card-body .btn { align-self: flex-start; margin-top: 16px; padding: 10px 24px; font-size: 0.9rem; }

/* ===== Stats ===== */
.stats { background: var(--bg-dark); position: relative; overflow: hidden; }
.stats::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat; opacity: 0.12; }
.stats .section-title { color: var(--text-light); }
.stats .section-subtitle { color: rgba(255,255,255,0.6); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; z-index: 1; }
.stat-item { text-align: center; padding: 32px 16px; background: rgba(255,255,255,0.05); border-radius: var(--radius-md); border: 1px solid rgba(255,255,255,0.06); backdrop-filter: blur(8px); transition: var(--transition); }
.stat-item:hover { background: rgba(255,255,255,0.08); transform: translateY(-4px); }
.stat-number { font-size: 2.8rem; font-weight: 800; color: var(--accent-light); line-height: 1.2; margin-bottom: 6px; }
.stat-label { font-size: 1rem; color: rgba(255,255,255,0.65); font-weight: 400; }

/* ===== Latest News ===== */
.news { background: var(--bg-white); }
.news-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.news-card { display: flex; flex-direction: column; background: var(--bg-white); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); transition: var(--transition); overflow: hidden; border: 1px solid var(--border-light); }
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.news-card-img { height: 200px; overflow: hidden; }
.news-card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.news-card:hover .news-card-img img { transform: scale(1.05); }
.news-card-body { padding: 20px 24px 24px; flex: 1; display: flex; flex-direction: column; }
.news-card-body .badge { align-self: flex-start; margin-bottom: 10px; }
.news-card-body h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; color: var(--text-primary); line-height: 1.5; }
.news-card-body h3 a { color: inherit; }
.news-card-body h3 a:hover { color: var(--secondary); }
.news-card-body p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.7; flex: 1; margin-bottom: 12px; }
.news-card-meta { display: flex; align-items: center; gap: 16px; font-size: 0.85rem; color: var(--text-muted); }
.news-card-meta i { margin-right: 4px; }
.news-empty { grid-column: 1 / -1; text-align: center; padding: 60px 20px; color: var(--text-muted); font-size: 1.1rem; background: var(--bg-light); border-radius: var(--radius-md); }

/* ===== Features ===== */
.features { background: var(--bg-light); }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card { text-align: center; padding: 40px 28px; background: var(--bg-white); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); transition: var(--transition); border: 1px solid var(--border-light); }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.feature-icon { width: 72px; height: 72px; margin: 0 auto 20px; display: flex; align-items: center; justify-content: center; border-radius: 20px; background: linear-gradient(135deg, rgba(232,132,29,0.1), rgba(245,166,35,0.1)); font-size: 2rem; color: var(--secondary); transition: var(--transition); }
.feature-card:hover .feature-icon { background: linear-gradient(135deg, var(--secondary), var(--accent)); color: var(--text-light); transform: scale(1.05); }
.feature-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; color: var(--text-primary); }
.feature-card p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7; }

/* ===== FAQ ===== */
.faq { background: var(--bg-white); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--bg-light); border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--border-light); transition: var(--transition); }
.faq-item:hover { border-color: var(--border-color); }
.faq-question { padding: 20px 28px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; font-weight: 600; font-size: 1.05rem; color: var(--text-primary); transition: var(--transition); }
.faq-question i { color: var(--secondary); transition: var(--transition); font-size: 1.1rem; }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer { padding: 0 28px; max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; }
.faq-item.active .faq-answer { max-height: 300px; padding: 0 28px 20px; }
.faq-answer p { color: var(--text-secondary); line-height: 1.8; font-size: 0.95rem; }

/* ===== CTA ===== */
.cta { position: relative; background: var(--bg-dark); overflow: hidden; }
.cta::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat; opacity: 0.12; }
.cta-content { position: relative; z-index: 1; text-align: center; max-width: 700px; margin: 0 auto; }
.cta h2 { font-size: 2.4rem; font-weight: 800; color: var(--text-light); margin-bottom: 16px; }
.cta p { font-size: 1.1rem; color: rgba(255,255,255,0.65); margin-bottom: 32px; line-height: 1.8; }
.cta .btn { margin: 0 8px; }

/* ===== Footer ===== */
.footer { background: var(--bg-dark); border-top: 1px solid rgba(255,255,255,0.06); padding: 60px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { font-size: 1.6rem; }
.footer-brand p { color: rgba(255,255,255,0.5); margin-top: 16px; font-size: 0.92rem; line-height: 1.8; max-width: 320px; }
.footer-col h4 { color: var(--text-light); font-size: 1rem; font-weight: 700; margin-bottom: 18px; letter-spacing: 0.5px; }
.footer-col a { display: block; color: rgba(255,255,255,0.5); padding: 6px 0; font-size: 0.92rem; transition: var(--transition); }
.footer-col a:hover { color: var(--accent-light); padding-left: 4px; }
.footer-social { display: flex; gap: 12px; margin-top: 16px; }
.footer-social a { width: 44px; height: 44px; border-radius: 50%; background: rgba(255,255,255,0.06); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.5); font-size: 1.2rem; transition: var(--transition); }
.footer-social a:hover { background: var(--secondary); color: var(--text-light); transform: translateY(-3px); }
.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; }
.footer-bottom p { color: rgba(255,255,255,0.35); font-size: 0.85rem; }
.footer-bottom a { color: rgba(255,255,255,0.35); }
.footer-bottom a:hover { color: var(--accent-light); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .intro-grid { gap: 40px; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-title { font-size: 1.7rem; }
  .section-subtitle { font-size: 1rem; margin-bottom: 32px; }
  .nav { display: none; position: absolute; top: var(--header-height); left: 0; width: 100%; background: rgba(15,12,41,0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 20px 24px; gap: 6px; border-bottom: 1px solid rgba(255,255,255,0.06); }
  .nav.open { display: flex; }
  .nav a { width: 100%; padding: 14px 20px; }
  .nav a.active::after { display: none; }
  .mobile-toggle { display: flex; }
  .hero h1 { font-size: 2.4rem; }
  .hero p { font-size: 1.05rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .intro-grid { grid-template-columns: 1fr; gap: 32px; }
  .intro-image img { height: 260px; }
  .cat-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .stat-number { font-size: 2rem; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .faq-question { padding: 16px 20px; font-size: 0.95rem; }
  .faq-answer { padding: 0 20px; }
  .faq-item.active .faq-answer { padding: 0 20px 16px; }
  .cta h2 { font-size: 1.8rem; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero h1 { font-size: 1.8rem; }
  .hero p { font-size: 0.95rem; }
  .hero-badge { font-size: 0.8rem; padding: 4px 16px; }
  .btn-lg { padding: 14px 32px; font-size: 1rem; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-item { padding: 20px 12px; }
  .stat-number { font-size: 1.7rem; }
  .section-title { font-size: 1.5rem; }
  .news-card-body { padding: 16px 18px 20px; }
  .feature-card { padding: 28px 20px; }
  .footer { padding: 40px 0 24px; }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #d42a2a;
            --primary-dark: #b01e1e;
            --primary-light: #fce4e4;
            --accent: #f5c518;
            --accent-dark: #dbaa0e;
            --bg-body: #f8f9fc;
            --bg-card: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-section: #f0f2f7;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-weak: #8a8aaa;
            --text-inverse: #ffffff;
            --border: #e2e5ed;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow: 0 8px 30px rgba(0,0,0,0.08);
            --shadow-lg: 0 20px 50px rgba(0,0,0,0.12);
            --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
        }

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

        /* ===== Container ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container { padding: 0 16px; }
        }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            height: var(--nav-height);
            transition: var(--transition);
        }
        .header.scrolled { box-shadow: var(--shadow); }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .logo span { color: var(--primary); }
        .logo:hover { color: var(--text-primary); }
        .nav { display: flex; align-items: center; gap: 6px; }
        .nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            position: relative;
        }
        .nav a:hover { color: var(--primary); background: var(--primary-light); }
        .nav a.active { color: var(--primary); background: var(--primary-light); font-weight: 600; }
        .nav a.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 10px 26px;
            border-radius: 50px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 14px rgba(212,42,42,0.3);
        }
        .nav a.nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(212,42,42,0.35);
        }
        .nav a.nav-cta i { font-size: 0.85rem; }

        /* Mobile toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-xs);
            transition: var(--transition);
        }
        .nav-toggle:hover { background: var(--bg-section); }
        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(18px);
                flex-direction: column;
                padding: 16px 20px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav a { width: 100%; padding: 12px 16px; border-radius: var(--radius-xs); }
            .nav a.nav-cta { justify-content: center; margin-top: 8px; }
        }

        /* ===== Page Banner ===== */
        .page-banner {
            margin-top: var(--nav-height);
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #16213e 100%);
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }
        .page-banner .container { position: relative; z-index: 2; }
        .page-banner h1 {
            font-size: 2.2rem;
            color: var(--text-inverse);
            max-width: 800px;
            margin-bottom: 14px;
            font-weight: 800;
            letter-spacing: -0.5px;
        }
        .page-banner .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            color: rgba(255,255,255,0.7);
            font-size: 0.95rem;
        }
        .page-banner .meta span { display: flex; align-items: center; gap: 6px; }
        .page-banner .meta i { color: var(--accent); }
        .page-banner .category-badge {
            display: inline-block;
            background: var(--accent);
            color: #1a1a2e;
            padding: 4px 16px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.8rem;
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .page-banner { padding: 60px 0 40px; }
            .page-banner h1 { font-size: 1.5rem; }
            .page-banner .meta { gap: 12px; font-size: 0.85rem; }
        }

        /* ===== Article Content ===== */
        .article-section {
            padding: 50px 0 70px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }
        .article-main {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 40px 44px;
            overflow: hidden;
        }
        .article-main .content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-primary);
        }
        .article-main .content p { margin-bottom: 1.4em; }
        .article-main .content h2, .article-main .content h3 {
            margin-top: 1.8em;
            margin-bottom: 0.6em;
            font-weight: 700;
        }
        .article-main .content h2 { font-size: 1.5rem; }
        .article-main .content h3 { font-size: 1.2rem; }
        .article-main .content ul, .article-main .content ol {
            margin-bottom: 1.4em;
            padding-left: 1.6em;
        }
        .article-main .content li { margin-bottom: 0.4em; list-style: disc; }
        .article-main .content a { color: var(--primary); text-decoration: underline; }
        .article-main .content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            padding: 14px 20px;
            border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
            margin: 1.4em 0;
            color: var(--text-secondary);
        }
        .article-main .content img {
            border-radius: var(--radius-sm);
            margin: 1.4em auto;
            box-shadow: var(--shadow-sm);
        }
        .article-main .content figure { margin: 1.4em 0; text-align: center; }
        .article-main .content figcaption { font-size: 0.85rem; color: var(--text-weak); margin-top: 6px; }
        .article-main .content pre {
            background: var(--bg-dark);
            color: #e8e8f0;
            padding: 20px;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            font-size: 0.9rem;
            margin: 1.4em 0;
        }
        .article-main .content code { font-family: 'Fira Code', monospace; }
        .article-main .content hr {
            border: none;
            height: 1px;
            background: var(--border);
            margin: 2em 0;
        }

        /* Article not found */
        .article-not-found {
            text-align: center;
            padding: 60px 20px;
        }
        .article-not-found i { font-size: 3rem; color: var(--text-weak); margin-bottom: 20px; }
        .article-not-found h2 { font-size: 1.6rem; margin-bottom: 12px; }
        .article-not-found p { color: var(--text-secondary); margin-bottom: 20px; }
        .article-not-found .btn { display: inline-block; }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 26px 28px;
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .sidebar-list a:last-child { border-bottom: none; }
        .sidebar-list a:hover { padding-left: 6px; }
        .sidebar-list .thumb {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-xs);
            background: var(--bg-section);
            flex-shrink: 0;
            object-fit: cover;
        }
        .sidebar-list .info { flex: 1; }
        .sidebar-list .info .title {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.4;
        }
        .sidebar-list .info .date {
            font-size: 0.78rem;
            color: var(--text-weak);
            margin-top: 4px;
        }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tags a {
            display: inline-block;
            padding: 6px 16px;
            background: var(--bg-section);
            border-radius: 50px;
            font-size: 0.82rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .sidebar-tags a:hover { background: var(--primary-light); color: var(--primary); }

        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; gap: 32px; }
            .article-main { padding: 28px 24px; }
        }
        @media (max-width: 768px) {
            .article-main { padding: 20px 16px; }
            .article-main .content { font-size: 1rem; }
            .sidebar-card { padding: 20px 18px; }
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; text-align: center; }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.85);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 30px;
        }
        .cta-section .btn-group { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
        .cta-section .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .cta-section .btn-primary {
            background: #fff;
            color: var(--primary);
        }
        .cta-section .btn-primary:hover { background: var(--accent); color: var(--text-primary); transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0,0,0,0.2); }
        .cta-section .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.5);
        }
        .cta-section .btn-outline:hover { background: rgba(255,255,255,0.12); border-color: #fff; transform: translateY(-3px); }
        @media (max-width: 768px) {
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section p { font-size: 0.95rem; }
            .cta-section .btn { padding: 12px 28px; font-size: 0.9rem; }
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 56px 0 28px;
        }
        .footer .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .logo { color: #fff; margin-bottom: 12px; font-size: 1.3rem; }
        .footer-brand .logo span { color: var(--accent); }
        .footer-brand p { font-size: 0.92rem; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 360px; }
        .footer-social { display: flex; gap: 12px; margin-top: 16px; }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.7);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
            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); }
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
        }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .footer .container { padding: 0 16px; }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-weak);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a { color: var(--text-weak); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb i { font-size: 0.7rem; color: var(--text-weak); }

        /* ===== Share ===== */
        .share-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            padding-top: 24px;
            margin-top: 28px;
            border-top: 1px solid var(--border);
        }
        .share-bar span { font-weight: 600; font-size: 0.9rem; color: var(--text-secondary); }
        .share-bar a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-section);
            color: var(--text-secondary);
            transition: var(--transition);
            font-size: 1rem;
        }
        .share-bar a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

        /* ===== Responsive fine-tune ===== */
        @media (max-width: 520px) {
            .page-banner h1 { font-size: 1.25rem; }
            .article-main { padding: 16px 12px; border-radius: var(--radius-sm); }
            .article-main .content { font-size: 0.95rem; }
            .sidebar-card { padding: 16px 14px; }
        }

        /* ===== Animations ===== */
        .fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
        .fade-up.visible { opacity: 1; transform: translateY(0); }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --color-primary: #0f1b2d;
            --color-primary-light: #1a2d4a;
            --color-accent: #d42020;
            --color-accent-hover: #b81a1a;
            --color-gold: #f5a623;
            --color-gold-light: #fce4a5;
            --color-bg: #f5f7fa;
            --color-white: #ffffff;
            --color-text: #1a1a2e;
            --color-text-light: #6b7a8f;
            --color-text-muted: #9aa8b9;
            --color-border: #e2e8f0;
            --color-border-light: #f0f2f5;
            --shadow-sm: 0 2px 8px rgba(15, 27, 45, 0.06);
            --shadow-md: 0 8px 24px rgba(15, 27, 45, 0.10);
            --shadow-lg: 0 16px 48px rgba(15, 27, 45, 0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 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(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-primary);
        }

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

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

        /* ===== Header & Navigation ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(15, 27, 45, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.20);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .header .logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--color-white);
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .header .logo span {
            color: var(--color-gold);
            font-weight: 600;
            font-size: 16px;
        }

        .header .logo i {
            color: var(--color-accent);
            font-size: 24px;
            margin-right: 6px;
        }

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

        .nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }

        .nav a:hover {
            color: var(--color-white);
            background: rgba(255, 255, 255, 0.08);
        }

        .nav a.active {
            color: var(--color-white);
            background: rgba(212, 32, 32, 0.25);
        }

        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 4px;
        }

        .nav a.nav-cta {
            background: var(--color-accent);
            color: var(--color-white);
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            margin-left: 10px;
            gap: 6px;
        }

        .nav a.nav-cta:hover {
            background: var(--color-accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(212, 32, 32, 0.35);
        }

        .nav a.nav-cta i {
            font-size: 14px;
            transition: var(--transition);
        }

        .nav a.nav-cta:hover i {
            transform: translateX(3px);
        }

        /* Mobile Menu Toggle */
        .menu-toggle {
            display: none;
            background: none;
            color: var(--color-white);
            font-size: 26px;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
        }

        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        @media (max-width: 820px) {
            .menu-toggle {
                display: block;
            }

            .nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(15, 27, 45, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px 20px 24px;
                gap: 4px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.30);
            }

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

            .nav a {
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
                border-radius: var(--radius-sm);
            }

            .nav a.active::after {
                display: none;
            }

            .nav a.active {
                background: rgba(212, 32, 32, 0.20);
                border-left: 3px solid var(--color-accent);
            }

            .nav a.nav-cta {
                margin-left: 0;
                margin-top: 8px;
                justify-content: center;
            }

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

            .header .logo span {
                font-size: 14px;
            }
        }

        @media (max-width: 480px) {
            :root {
                --header-height: 62px;
            }

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

            .header .logo span {
                font-size: 12px;
            }

            .header .logo i {
                font-size: 20px;
            }

            .nav a {
                font-size: 15px;
                padding: 10px 14px;
            }
        }

        /* ===== Hero / Banner ===== */
        .hero {
            padding: 140px 0 80px;
            background: linear-gradient(135deg, var(--color-primary) 0%, #1a2d4a 60%, #2a1a3a 100%);
            position: relative;
            overflow: hidden;
            min-height: 480px;
            display: flex;
            align-items: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.20;
            mix-blend-mode: overlay;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(212, 32, 32, 0.15) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 50%, rgba(245, 166, 35, 0.08) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212, 32, 32, 0.20);
            border: 1px solid rgba(212, 32, 32, 0.30);
            color: var(--color-gold);
            font-size: 14px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }

        .hero-badge i {
            font-size: 16px;
        }

        .hero h1 {
            font-size: 52px;
            font-weight: 800;
            color: var(--color-white);
            margin-bottom: 16px;
            letter-spacing: 2px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.30);
        }

        .hero h1 span {
            color: var(--color-gold);
        }

        .hero p {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.80);
            max-width: 680px;
            margin: 0 auto 32px;
            line-height: 1.8;
            font-weight: 400;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }

        .hero-actions .btn-primary {
            background: var(--color-accent);
            color: var(--color-white);
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            font-size: 17px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
            box-shadow: 0 6px 24px rgba(212, 32, 32, 0.35);
        }

        .hero-actions .btn-primary:hover {
            background: var(--color-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(212, 32, 32, 0.45);
        }

        .hero-actions .btn-primary i {
            transition: var(--transition);
        }

        .hero-actions .btn-primary:hover i {
            transform: translateX(4px);
        }

        .hero-actions .btn-outline {
            background: transparent;
            color: var(--color-white);
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-size: 17px;
            font-weight: 600;
            border: 2px solid rgba(255, 255, 255, 0.30);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .hero-actions .btn-outline:hover {
            border-color: var(--color-white);
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

        @media (max-width: 820px) {
            .hero {
                padding: 120px 0 60px;
                min-height: 400px;
            }

            .hero h1 {
                font-size: 36px;
            }

            .hero p {
                font-size: 17px;
            }

            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                padding: 12px 28px;
                font-size: 15px;
            }
        }

        @media (max-width: 480px) {
            .hero {
                padding: 100px 0 50px;
                min-height: 340px;
            }

            .hero h1 {
                font-size: 28px;
            }

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

            .hero-badge {
                font-size: 12px;
                padding: 4px 14px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: center;
            }

            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .section-header h2 span {
            color: var(--color-accent);
        }

        .section-header p {
            font-size: 18px;
            color: var(--color-text-light);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-header .section-line {
            width: 60px;
            height: 4px;
            background: var(--color-accent);
            border-radius: 4px;
            margin: 16px auto 0;
        }

        @media (max-width: 820px) {
            .section {
                padding: 56px 0;
            }

            .section-header h2 {
                font-size: 28px;
            }

            .section-header p {
                font-size: 16px;
            }

            .section-header {
                margin-bottom: 36px;
            }
        }

        @media (max-width: 480px) {
            .section {
                padding: 40px 0;
            }

            .section-header h2 {
                font-size: 24px;
            }
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 640px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
        }

        /* ===== Category Cards ===== */
        .category-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
        }

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

        .category-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
            display: block;
        }

        .category-card .card-body {
            padding: 24px 22px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .category-card .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .category-card .card-body p {
            font-size: 15px;
            color: var(--color-text-light);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .category-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }

        .category-card .card-tags span {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 500;
            background: var(--color-bg);
            color: var(--color-text-light);
            border: 1px solid var(--color-border);
        }

        .category-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 15px;
            margin-top: auto;
            transition: var(--transition);
        }

        .category-card .card-link:hover {
            gap: 12px;
            color: var(--color-accent-hover);
        }

        .category-card .card-link i {
            font-size: 13px;
            transition: var(--transition);
        }

        @media (max-width: 480px) {
            .category-card .card-img {
                height: 160px;
            }

            .category-card .card-body {
                padding: 18px 16px 20px;
            }

            .category-card .card-body h3 {
                font-size: 18px;
            }
        }

        /* ===== Hot Events Section ===== */
        .events-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        @media (max-width: 820px) {
            .events-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
        }

        .event-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: row;
        }

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

        .event-card .event-img {
            width: 180px;
            min-height: 160px;
            object-fit: cover;
            border-radius: 0;
            flex-shrink: 0;
        }

        .event-card .event-body {
            padding: 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .event-body .event-badge {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(212, 32, 32, 0.10);
            color: var(--color-accent);
            border: 1px solid rgba(212, 32, 32, 0.20);
            margin-bottom: 8px;
            width: fit-content;
        }

        .event-body .event-badge.hot {
            background: rgba(245, 166, 35, 0.15);
            color: #c97d00;
            border-color: rgba(245, 166, 35, 0.30);
        }

        .event-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .event-body .event-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 14px;
            color: var(--color-text-light);
            margin-bottom: 10px;
        }

        .event-body .event-meta i {
            margin-right: 4px;
            color: var(--color-accent);
        }

        .event-body .event-desc {
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        @media (max-width: 640px) {
            .event-card {
                flex-direction: column;
            }

            .event-card .event-img {
                width: 100%;
                height: 180px;
            }
        }

        /* ===== Stats Section ===== */
        .stats-section {
            background: var(--color-primary);
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 2;
        }

        .stat-item {
            text-align: center;
            padding: 28px 16px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }

        .stat-item .stat-number {
            font-size: 44px;
            font-weight: 800;
            color: var(--color-gold);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-item .stat-label {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
        }

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

            .stat-item .stat-number {
                font-size: 34px;
            }
        }

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

            .stat-item {
                padding: 20px 12px;
            }

            .stat-item .stat-number {
                font-size: 28px;
            }
        }

        /* ===== Process / Steps ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .process-step {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 32px 24px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
            position: relative;
        }

        .process-step:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }

        .process-step .step-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 26px;
            color: var(--color-gold);
            position: relative;
        }

        .process-step .step-icon::after {
            content: counter(step);
            counter-increment: step;
            position: absolute;
            top: -6px;
            right: -6px;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--color-accent);
            color: var(--color-white);
            font-size: 12px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 2px 8px rgba(212, 32, 32, 0.30);
        }

        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.7;
        }

        @media (max-width: 1024px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .process-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .faq-item:hover {
            border-color: var(--color-border);
        }

        .faq-item .faq-question {
            padding: 18px 24px;
            font-size: 17px;
            font-weight: 600;
            color: var(--color-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            gap: 16px;
            transition: var(--transition);
        }

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

        .faq-item .faq-question i {
            font-size: 18px;
            color: var(--color-accent);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--color-text-light);
            line-height: 1.8;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        @media (max-width: 640px) {
            .faq-item .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }

            .faq-item .faq-answer {
                padding: 0 16px 14px;
                font-size: 14px;
            }
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #1a2d4a 60%, #2a1a3a 100%);
            position: relative;
            overflow: hidden;
            padding: 80px 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--color-white);
            margin-bottom: 14px;
        }

        .cta-section h2 span {
            color: var(--color-gold);
        }

        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--color-accent);
            color: var(--color-white);
            padding: 16px 44px;
            border-radius: var(--radius-sm);
            font-size: 18px;
            font-weight: 700;
            transition: var(--transition);
            box-shadow: 0 8px 28px rgba(212, 32, 32, 0.35);
        }

        .cta-section .btn-cta:hover {
            background: var(--color-accent-hover);
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(212, 32, 32, 0.45);
        }

        .cta-section .btn-cta i {
            transition: var(--transition);
        }

        .cta-section .btn-cta:hover i {
            transform: translateX(4px);
        }

        @media (max-width: 820px) {
            .cta-section {
                padding: 56px 0;
            }

            .cta-section h2 {
                font-size: 28px;
            }

            .cta-section p {
                font-size: 16px;
            }

            .cta-section .btn-cta {
                padding: 14px 32px;
                font-size: 16px;
            }
        }

        @media (max-width: 480px) {
            .cta-section h2 {
                font-size: 24px;
            }

            .cta-section .btn-cta {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.80);
            padding: 60px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-brand .logo {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 24px;
            font-weight: 800;
            color: var(--color-white);
            margin-bottom: 14px;
            letter-spacing: 1px;
        }

        .footer-brand .logo span {
            color: var(--color-gold);
            font-weight: 600;
            font-size: 17px;
        }

        .footer-brand p {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.60);
            max-width: 340px;
            margin-bottom: 20px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: rgba(255, 255, 255, 0.60);
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-social a:hover {
            background: var(--color-accent);
            color: var(--color-white);
            border-color: var(--color-accent);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(212, 32, 32, 0.30);
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.55);
            padding: 5px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--color-gold);
            padding-left: 4px;
        }

        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .footer-bottom p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.40);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.50);
            margin: 0 6px;
            transition: var(--transition);
        }

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

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

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

            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 640px) {
            .footer {
                padding: 40px 0 0;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-col a {
                font-size: 14px;
            }

            .footer-bottom p {
                font-size: 13px;
            }

            .footer-brand .logo {
                font-size: 20px;
            }

            .footer-brand .logo span {
                font-size: 14px;
            }
        }

        /* ===== Utility ===== */
        .text-accent {
            color: var(--color-accent);
        }

        .text-gold {
            color: var(--color-gold);
        }

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

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

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            padding: 20px 0 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            position: relative;
            z-index: 2;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.60);
            transition: var(--transition);
        }

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

        .breadcrumb span {
            color: rgba(255, 255, 255, 0.35);
        }

        .breadcrumb .current {
            color: var(--color-gold);
        }

        @media (max-width: 480px) {
            .breadcrumb {
                font-size: 13px;
                padding-top: 12px;
            }
        }

        /* ===== Info Banner (内页顶部补充) ===== */
        .page-intro {
            padding: 40px 0 0;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
        }

        .page-intro .container {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            align-items: center;
            justify-content: space-between;
        }

        .page-intro .intro-text {
            flex: 1;
            min-width: 280px;
        }

        .page-intro .intro-text h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .page-intro .intro-text p {
            font-size: 16px;
            color: var(--color-text-light);
            line-height: 1.7;
            max-width: 540px;
        }

        .page-intro .intro-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .page-intro .intro-stats .stat {
            text-align: center;
        }

        .page-intro .intro-stats .stat .num {
            font-size: 30px;
            font-weight: 800;
            color: var(--color-accent);
        }

        .page-intro .intro-stats .stat .label {
            font-size: 14px;
            color: var(--color-text-light);
        }

        @media (max-width: 820px) {
            .page-intro {
                padding: 24px 0 0;
            }

            .page-intro .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }

            .page-intro .intro-text h2 {
                font-size: 24px;
            }

            .page-intro .intro-stats {
                gap: 20px;
            }

            .page-intro .intro-stats .stat .num {
                font-size: 24px;
            }
        }

        @media (max-width: 480px) {
            .page-intro .intro-stats {
                width: 100%;
                justify-content: space-between;
            }
        }

        /* ===== Accessibility ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid var(--color-gold);
            outline-offset: 2px;
        }

        /* ===== Selection ===== */
        ::selection {
            background: var(--color-accent);
            color: var(--color-white);
        }

        /* ===== Smooth Scroll Padding ===== */
        .scroll-pad {
            scroll-margin-top: calc(var(--header-height) + 20px);
        }