/* roulang page: index */
:root {
  --primary: #0b0f1a;
  --primary-light: #161c2e;
  --accent: #c9a84c;
  --accent-light: #e8c95a;
  --accent-dark: #a8882e;
  --accent-glow: rgba(201, 168, 76, 0.25);
  --text-light: #f5f5f5;
  --text-muted: #8a8f9e;
  --text-dark: #1a1a2e;
  --bg-dark: #0b0f1a;
  --bg-card: #121726;
  --bg-section: #0f1420;
  --bg-section-alt: #0d111c;
  --border-color: #1e2538;
  --border-accent: rgba(201, 168, 76, 0.3);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
  --shadow-accent: 0 4px 24px rgba(201, 168, 76, 0.15);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); background: var(--bg-dark); color: var(--text-light); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-light); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font-family: inherit; }
::selection { background: var(--accent); color: var(--bg-dark); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-section); }
.section-dark { background: var(--bg-section-alt); }
.section-label { display: inline-block; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; }
.section-title { font-size: 2.25rem; font-weight: 700; margin-bottom: 16px; line-height: 1.2; color: var(--text-light); }
.section-subtitle { font-size: 1.05rem; color: var(--text-muted); max-width: 640px; margin-bottom: 40px; }
.text-center .section-subtitle { margin-left: auto; margin-right: auto; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: 50px; font-weight: 600; font-size: 0.95rem; border: none; cursor: pointer; transition: var(--transition); text-decoration: none; }
.btn-accent { background: var(--accent); color: var(--bg-dark); }
.btn-accent:hover { background: var(--accent-light); color: var(--bg-dark); transform: translateY(-2px); box-shadow: var(--shadow-accent); }
.btn-outline { background: transparent; border: 2px solid var(--border-accent); color: var(--text-light); }
.btn-outline:hover { background: var(--accent); border-color: var(--accent); color: var(--bg-dark); transform: translateY(-2px); }
.btn-ghost { background: rgba(255,255,255,0.06); color: var(--text-light); }
.btn-ghost:hover { background: rgba(255,255,255,0.12); transform: translateY(-2px); }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius); overflow: hidden; transition: var(--transition); }
.card:hover { transform: translateY(-4px); border-color: var(--border-accent); box-shadow: var(--shadow); }
.card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.card-body { padding: 24px; }
.card-title { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; color: var(--text-light); }
.card-text { font-size: 0.9rem; color: var(--text-muted); line-height: 1.5; }
.badge { display: inline-block; padding: 4px 12px; border-radius: 50px; font-size: 0.7rem; font-weight: 600; letter-spacing: 0.05em; }
.badge-accent { background: var(--accent-glow); color: var(--accent); }
.badge-muted { background: rgba(255,255,255,0.06); color: var(--text-muted); }
/* Header / Nav */
.header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(11, 15, 26, 0.92); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid rgba(255,255,255,0.04); transition: var(--transition); }
.header.scrolled { background: rgba(11, 15, 26, 0.98); box-shadow: 0 4px 30px rgba(0,0,0,0.5); }
.navbar { display: flex; align-items: center; justify-content: space-between; height: 72px; padding: 0 24px; max-width: 1200px; margin: 0 auto; }
.navbar-brand { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; font-weight: 800; color: var(--text-light); letter-spacing: -0.02em; }
.navbar-brand .brand-icon { width: 36px; height: 36px; background: var(--accent); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; color: var(--bg-dark); font-weight: 900; }
.navbar-brand:hover { color: var(--accent); }
.navbar-nav { display: flex; align-items: center; gap: 4px; list-style: none; }
.navbar-nav .nav-item { }
.navbar-nav .nav-link { padding: 8px 18px; border-radius: 50px; font-size: 0.9rem; font-weight: 500; color: var(--text-muted); transition: var(--transition); text-decoration: none; }
.navbar-nav .nav-link:hover { color: var(--text-light); background: rgba(255,255,255,0.06); }
.navbar-nav .nav-link.active { color: var(--accent); background: var(--accent-glow); }
.navbar-search { display: flex; align-items: center; background: rgba(255,255,255,0.06); border: 1px solid var(--border-color); border-radius: 50px; padding: 0 16px; transition: var(--transition); flex: 0 1 320px; }
.navbar-search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.navbar-search .search-icon { color: var(--text-muted); font-size: 0.9rem; margin-right: 10px; }
.navbar-search input { background: transparent; border: none; outline: none; color: var(--text-light); padding: 10px 0; font-size: 0.9rem; width: 100%; }
.navbar-search input::placeholder { color: var(--text-muted); }
.navbar-toggle { display: none; background: none; border: none; color: var(--text-light); font-size: 1.5rem; cursor: pointer; padding: 8px; }
/* Hero */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: 120px 24px 80px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat; filter: brightness(0.45) saturate(1.1); z-index: 0; }
.hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11,15,26,0.7) 0%, rgba(11,15,26,0.3) 50%, rgba(11,15,26,0.85) 100%); }
.hero-overlay { position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 40%, rgba(201,168,76,0.08) 0%, transparent 60%); z-index: 1; }
.hero-content { position: relative; z-index: 2; max-width: 860px; }
.hero-badge { display: inline-block; padding: 6px 20px; border-radius: 50px; background: var(--accent-glow); color: var(--accent); font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em; margin-bottom: 24px; border: 1px solid var(--border-accent); }
.hero-title { font-size: 3.5rem; font-weight: 800; line-height: 1.1; margin-bottom: 20px; color: var(--text-light); letter-spacing: -0.02em; }
.hero-title .highlight { color: var(--accent); }
.hero-subtitle { font-size: 1.15rem; color: var(--text-muted); max-width: 600px; margin: 0 auto 36px; line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-bottom: 48px; }
.hero-search { display: flex; max-width: 500px; margin: 0 auto; background: rgba(255,255,255,0.06); border: 1px solid var(--border-color); border-radius: 50px; padding: 4px; transition: var(--transition); }
.hero-search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-glow); }
.hero-search input { flex: 1; background: transparent; border: none; outline: none; color: var(--text-light); padding: 14px 20px; font-size: 1rem; }
.hero-search input::placeholder { color: var(--text-muted); }
.hero-search button { padding: 12px 28px; border-radius: 50px; background: var(--accent); color: var(--bg-dark); border: none; font-weight: 600; cursor: pointer; transition: var(--transition); }
.hero-search button:hover { background: var(--accent-light); }
.hero-stats { display: flex; justify-content: center; gap: 48px; margin-top: 16px; flex-wrap: wrap; }
.hero-stat { text-align: center; }
.hero-stat-number { font-size: 2rem; font-weight: 800; color: var(--accent); line-height: 1; }
.hero-stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }
/* Features */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 32px 28px; transition: var(--transition); text-align: center; }
.feature-card:hover { transform: translateY(-6px); border-color: var(--border-accent); box-shadow: var(--shadow); }
.feature-icon { width: 56px; height: 56px; border-radius: 16px; background: var(--accent-glow); color: var(--accent); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin: 0 auto 20px; }
.feature-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; color: var(--text-light); }
.feature-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }
/* Categories */
.categories-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.category-card { position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 3/4; display: flex; align-items: flex-end; cursor: pointer; transition: var(--transition); text-decoration: none; }
.category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.category-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.category-card:hover img { transform: scale(1.05); }
.category-card-overlay { position: absolute; inset: 0; background: linear-gradient(0deg, rgba(11,15,26,0.9) 0%, rgba(11,15,26,0.2) 60%, transparent 100%); }
.category-card-content { position: relative; z-index: 1; padding: 24px 20px; width: 100%; }
.category-card-content h3 { font-size: 1.1rem; font-weight: 700; color: var(--text-light); margin-bottom: 4px; }
.category-card-content p { font-size: 0.8rem; color: var(--text-muted); }
.category-card .badge { position: absolute; top: 16px; right: 16px; z-index: 2; }
/* Latest News / CMS List */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius); overflow: hidden; transition: var(--transition); }
.news-card:hover { transform: translateY(-4px); border-color: var(--border-accent); box-shadow: var(--shadow); }
.news-card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.news-card-body { padding: 20px 24px 24px; }
.news-card-meta { display: flex; align-items: center; gap: 12px; font-size: 0.75rem; color: var(--text-muted); margin-bottom: 10px; }
.news-card-meta .dot { width: 4px; height: 4px; border-radius: 50%; background: var(--text-muted); }
.news-card-title { font-size: 1.05rem; font-weight: 700; color: var(--text-light); margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card-text { font-size: 0.85rem; color: var(--text-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card-footer { padding: 12px 24px; border-top: 1px solid var(--border-color); display: flex; align-items: center; justify-content: space-between; }
.news-card-footer .btn-text { font-size: 0.8rem; color: var(--accent); font-weight: 600; }
.news-empty { grid-column: 1 / -1; text-align: center; padding: 60px 24px; color: var(--text-muted); }
.news-empty i { font-size: 3rem; margin-bottom: 16px; opacity: 0.4; }
/* Projects */
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.project-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius); overflow: hidden; transition: var(--transition); }
.project-card:hover { transform: translateY(-4px); border-color: var(--border-accent); box-shadow: var(--shadow); }
.project-card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.project-card-body { padding: 20px 24px 24px; }
.project-card-body h3 { font-size: 1.1rem; font-weight: 700; color: var(--text-light); margin-bottom: 6px; }
.project-card-body p { font-size: 0.85rem; color: var(--text-muted); }
.project-card-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
/* Stats */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 32px 20px; text-align: center; transition: var(--transition); }
.stat-card:hover { border-color: var(--border-accent); transform: translateY(-2px); }
.stat-number { font-size: 2.5rem; font-weight: 800; color: var(--accent); line-height: 1; }
.stat-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 8px; }
/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border-color); padding: 20px 0; }
.faq-item:first-child { border-top: 1px solid var(--border-color); }
.faq-question { display: flex; align-items: center; justify-content: space-between; cursor: pointer; font-size: 1rem; font-weight: 600; color: var(--text-light); padding: 4px 0; transition: var(--transition); }
.faq-question:hover { color: var(--accent); }
.faq-question i { font-size: 0.8rem; color: var(--text-muted); transition: var(--transition); }
.faq-item.active .faq-question i { transform: rotate(180deg); color: var(--accent); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.4s ease; padding: 0; color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }
.faq-item.active .faq-answer { max-height: 300px; padding-top: 16px; }
/* CTA */
.cta-section { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 64px 48px; text-align: center; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 0%, rgba(201,168,76,0.06) 0%, transparent 60%); }
.cta-section h2 { font-size: 2rem; font-weight: 700; margin-bottom: 12px; position: relative; }
.cta-section p { color: var(--text-muted); max-width: 520px; margin: 0 auto 28px; position: relative; }
.cta-section .btn { position: relative; }
/* Footer */
.footer { border-top: 1px solid var(--border-color); padding: 48px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
.footer-brand .footer-logo { font-size: 1.1rem; font-weight: 800; color: var(--text-light); display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.footer-brand .footer-logo .brand-icon { width: 32px; height: 32px; background: var(--accent); border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 1rem; color: var(--bg-dark); font-weight: 900; }
.footer-brand p { font-size: 0.85rem; color: var(--text-muted); max-width: 300px; line-height: 1.6; }
.footer-col h4 { font-size: 0.9rem; font-weight: 700; color: var(--text-light); margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 0.85rem; color: var(--text-muted); text-decoration: none; transition: var(--transition); }
.footer-col ul li a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--border-color); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.8rem; color: var(--text-muted); }
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--accent); }
/* Mobile */
@media (max-width: 991px) {
  .navbar-search { flex: 0 1 200px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .navbar-nav { display: none; }
  .navbar-toggle { display: block; }
  .navbar-search { flex: 1; max-width: 180px; }
  .hero-title { font-size: 2.2rem; }
  .hero-subtitle { font-size: 1rem; }
  .hero-stats { gap: 24px; }
  .hero-stat-number { font-size: 1.5rem; }
  .section-title { font-size: 1.6rem; }
  .features-grid { grid-template-columns: 1fr; }
  .categories-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-section { padding: 40px 24px; }
  .cta-section h2 { font-size: 1.5rem; }
  .navbar { height: 64px; }
  .hero { padding: 100px 16px 60px; min-height: 90vh; }
}
@media (max-width: 520px) {
  .hero-title { font-size: 1.7rem; }
  .hero-search { flex-direction: column; border-radius: var(--radius); background: transparent; border: none; gap: 8px; }
  .hero-search input { background: rgba(255,255,255,0.06); border: 1px solid var(--border-color); border-radius: 50px; padding: 12px 16px; }
  .hero-search button { width: 100%; border-radius: 50px; }
  .stats-row { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-card { padding: 20px 12px; }
  .stat-number { font-size: 1.8rem; }
}
/* Nav mobile open state */
.navbar-nav.open { display: flex; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; background: rgba(11,15,26,0.98); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border-color); padding: 16px; gap: 8px; }
.navbar-nav.open .nav-link { padding: 12px 20px; width: 100%; }
@media (max-width: 767px) {
  .navbar-nav.open { top: 64px; }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg-body: #0d0d0d;
            --bg-card: #1a1a2e;
            --bg-card-hover: #16213e;
            --bg-section: #111122;
            --bg-section-alt: #0f0f1f;
            --text-primary: #f1f1f1;
            --text-secondary: #b0b0c0;
            --text-muted: #6c6c80;
            --border-color: #2a2a4a;
            --border-light: #3a3a5a;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.4);
            --shadow-lg: 0 12px 48px rgba(0,0,0,0.5);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

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

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            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;
            height: var(--header-height);
            background: rgba(13, 13, 13, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(42, 42, 74, 0.4);
            transition: var(--transition);
        }
        .header.scrolled {
            background: rgba(13, 13, 13, 0.96);
            box-shadow: 0 4px 30px rgba(0,0,0,0.5);
        }
        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
            gap: 16px;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .navbar-brand:hover { color: var(--primary-light); }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 10px;
            font-size: 14px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0;
        }
        .navbar-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .nav-item .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-item .nav-link:hover,
        .nav-item .nav-link.active {
            color: var(--text-primary);
            background: rgba(230, 57, 70, 0.12);
        }
        .nav-item .nav-link.active {
            color: var(--primary-light);
            background: rgba(230, 57, 70, 0.18);
        }
        .navbar-search {
            display: flex;
            align-items: center;
            background: rgba(255,255,255,0.06);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0 16px;
            min-width: 200px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .navbar-search:focus-within {
            border-color: var(--primary);
            background: rgba(255,255,255,0.10);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
        }
        .navbar-search .search-icon {
            color: var(--text-muted);
            font-size: 14px;
            margin-right: 10px;
        }
        .navbar-search input {
            background: transparent;
            color: var(--text-primary);
            padding: 10px 0;
            width: 100%;
            font-size: 14px;
        }
        .navbar-search input::placeholder { color: var(--text-muted); }
        .navbar-toggle {
            display: none;
            font-size: 22px;
            color: var(--text-primary);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .navbar-toggle:hover { background: rgba(255,255,255,0.06); }

        @media (max-width: 1024px) {
            .navbar-search { min-width: 140px; }
            .navbar-search input { padding: 8px 0; font-size: 13px; }
            .nav-item .nav-link { padding: 6px 12px; font-size: 14px; }
        }
        @media (max-width: 768px) {
            .navbar { padding: 0 16px; gap: 8px; }
            .navbar-brand { font-size: 18px; gap: 8px; }
            .brand-icon { width: 32px; height: 32px; font-size: 12px; }
            .navbar-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(13,13,13,0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
                z-index: 999;
                pointer-events: none;
            }
            .navbar-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-item .nav-link {
                padding: 12px 16px;
                font-size: 16px;
                width: 100%;
                justify-content: flex-start;
                border-radius: var(--radius-sm);
            }
            .navbar-search {
                min-width: 120px;
                padding: 0 12px;
            }
            .navbar-search input { padding: 6px 0; font-size: 13px; width: 80px; }
            .navbar-toggle { display: block; }
        }
        @media (max-width: 480px) {
            .navbar-brand { font-size: 15px; gap: 6px; }
            .brand-icon { width: 28px; height: 28px; font-size: 10px; border-radius: 8px; }
            .navbar-search { min-width: 80px; padding: 0 8px; }
            .navbar-search .search-icon { margin-right: 4px; font-size: 12px; }
            .navbar-search input { width: 50px; font-size: 12px; padding: 4px 0; }
        }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            padding: 120px 0 60px;
            background: var(--bg-section);
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.20;
            z-index: 0;
        }
        .article-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13,13,13,0.50) 0%, rgba(13,13,13,0.88) 100%);
            z-index: 1;
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
        }
        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-hero .breadcrumb a {
            color: var(--text-muted);
            transition: var(--transition);
        }
        .article-hero .breadcrumb a:hover { color: var(--primary-light); }
        .article-hero .breadcrumb .sep { color: var(--text-muted); font-size: 12px; }
        .article-hero .hero-category {
            display: inline-block;
            background: rgba(230, 57, 70, 0.18);
            color: var(--primary-light);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 16px;
        }
        .article-hero h1 {
            font-size: clamp(28px, 5vw, 52px);
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-primary);
            max-width: 900px;
            margin-bottom: 16px;
        }
        .article-hero .hero-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            color: var(--text-secondary);
            font-size: 15px;
        }
        .article-hero .hero-meta i { margin-right: 6px; color: var(--primary-light); }
        @media (max-width: 768px) {
            .article-hero { padding: 100px 0 40px; min-height: 260px; }
            .article-hero .breadcrumb { font-size: 13px; }
            .article-hero .hero-meta { gap: 12px; font-size: 14px; }
        }
        @media (max-width: 480px) {
            .article-hero { padding: 90px 0 32px; min-height: 220px; }
        }

        /* ===== Article Content ===== */
        .article-section {
            padding: 60px 0 80px;
            background: var(--bg-body);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }
        .article-main {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 40px;
            box-shadow: var(--shadow-sm);
        }
        .article-main .article-body {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-primary);
        }
        .article-main .article-body p {
            margin-bottom: 1.4em;
        }
        .article-main .article-body h2,
        .article-main .article-body h3 {
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
        }
        .article-main .article-body h2 { font-size: 26px; }
        .article-main .article-body h3 { font-size: 20px; }
        .article-main .article-body ul,
        .article-main .article-body ol {
            margin-bottom: 1.4em;
            padding-left: 24px;
        }
        .article-main .article-body ul { list-style: disc; }
        .article-main .article-body ol { list-style: decimal; }
        .article-main .article-body li { margin-bottom: 0.4em; color: var(--text-secondary); }
        .article-main .article-body a { color: var(--primary-light); text-decoration: underline; }
        .article-main .article-body a:hover { color: var(--primary); }
        .article-main .article-body img {
            border-radius: var(--radius-sm);
            margin: 1.6em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-main .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 12px 20px;
            margin: 1.4em 0;
            background: rgba(230, 57, 70, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-main .article-body code {
            background: rgba(255,255,255,0.06);
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--primary-light);
        }
        .article-main .article-body pre {
            background: rgba(0,0,0,0.4);
            padding: 20px;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            margin: 1.4em 0;
            border: 1px solid var(--border-color);
        }
        .article-main .article-body pre code { background: none; padding: 0; color: inherit; }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }
        .article-tags .tag {
            display: inline-block;
            background: rgba(230, 57, 70, 0.10);
            color: var(--primary-light);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            transition: var(--transition);
        }
        .article-tags .tag:hover {
            background: rgba(230, 57, 70, 0.20);
            transform: translateY(-1px);
        }
        .article-nav-links {
            display: flex;
            justify-content: space-between;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            gap: 16px;
            flex-wrap: wrap;
        }
        .article-nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-secondary);
            font-size: 15px;
            transition: var(--transition);
            max-width: 45%;
        }
        .article-nav-links a:hover { color: var(--primary-light); }
        .article-nav-links a .dir { color: var(--text-muted); font-size: 13px; }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-card h3 i { color: var(--primary-light); font-size: 16px; }
        .sidebar-list { display: flex; flex-direction: column; gap: 12px; }
        .sidebar-list-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 10px 0;
            border-bottom: 1px solid rgba(42,42,74,0.3);
            transition: var(--transition);
        }
        .sidebar-list-item:last-child { border-bottom: none; }
        .sidebar-list-item .thumb {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-section);
        }
        .sidebar-list-item .info { flex: 1; min-width: 0; }
        .sidebar-list-item .info .title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: var(--transition);
        }
        .sidebar-list-item .info .title:hover { color: var(--primary-light); }
        .sidebar-list-item .info .meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .sidebar-card .cat-list { display: flex; flex-direction: column; gap: 6px; }
        .sidebar-card .cat-list a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 15px;
            transition: var(--transition);
        }
        .sidebar-card .cat-list a:hover {
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary-light);
            transform: translateX(4px);
        }
        .sidebar-card .cat-list a i { font-size: 12px; color: var(--text-muted); }

        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr 260px; gap: 32px; }
            .article-main { padding: 32px; }
        }
        @media (max-width: 768px) {
            .article-layout { grid-template-columns: 1fr; gap: 32px; }
            .article-main { padding: 24px; }
            .article-main .article-body { font-size: 16px; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
            .sidebar-card { padding: 20px; }
        }
        @media (max-width: 520px) {
            .article-main { padding: 16px; border-radius: var(--radius-sm); }
            .article-main .article-body { font-size: 15px; }
            .article-sidebar { grid-template-columns: 1fr; }
            .article-nav-links { flex-direction: column; }
            .article-nav-links a { max-width: 100%; }
        }

        /* ===== CTA ===== */
        .article-cta {
            background: var(--bg-section);
            padding: 60px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .article-cta .cta-box {
            background: linear-gradient(135deg, rgba(230,57,70,0.10) 0%, rgba(29,53,87,0.10) 100%);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .article-cta .cta-box::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(230,57,70,0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .article-cta .cta-box h2 {
            font-size: clamp(22px, 3.5vw, 36px);
            font-weight: 800;
            margin-bottom: 12px;
        }
        .article-cta .cta-box p {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto 24px;
        }
        .article-cta .cta-box .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 14px 36px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            border: none;
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.30);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(230, 57, 70, 0.45);
            color: #fff;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--text-primary);
            padding: 14px 36px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary-light);
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .article-cta { padding: 40px 0; }
            .article-cta .cta-box { padding: 32px 24px; }
            .btn-primary, .btn-outline { padding: 12px 28px; font-size: 15px; }
        }
        @media (max-width: 480px) {
            .article-cta .cta-box { padding: 24px 16px; }
            .article-cta .cta-box .btn-group { flex-direction: column; align-items: center; }
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-section);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .footer-brand p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 18px;
        }
        .footer-col ul { display: flex; flex-direction: column; gap: 10px; }
        .footer-col ul li a {
            color: var(--text-secondary);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--text-secondary); }
        .footer-bottom a:hover { color: var(--primary-light); }
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 768px) {
            .footer { padding: 40px 0 24px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 480px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-brand .footer-logo { font-size: 18px; }
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 60px 24px;
        }
        .not-found-box .icon {
            font-size: 64px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .not-found-box h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }
        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary-light);
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover { gap: 12px; }

        /* ===== Responsive helper ===== */
        @media (max-width: 520px) {
            .article-hero h1 { font-size: 24px; }
            .sidebar-card { padding: 16px; }
        }

/* roulang page: category1 */
/* ===== CSS Design Variables ===== */
        :root {
            --primary: #e8a838;
            --primary-light: #f0c46a;
            --primary-dark: #c68a2a;
            --primary-gradient: linear-gradient(135deg, #e8a838 0%, #d4942e 50%, #c68a2a 100%);
            --secondary: #1a2a3a;
            --secondary-light: #2a3f55;
            --accent: #f5e6c8;
            --bg-dark: #0d1a2a;
            --bg-card: #ffffff;
            --bg-light: #f8f6f2;
            --bg-section: #f0ece6;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5a;
            --text-muted: #8a8a9a;
            --text-light: #ffffff;
            --text-gold: #e8a838;
            --border-color: #e0ddd8;
            --border-light: #f0ede8;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
            --shadow-glow: 0 4px 24px rgba(232,168,56,0.30);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        a { color: var(--primary-dark); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary); }
        a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
        ul, ol { list-style: none; }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        input { font-family: inherit; border: none; outline: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2.0rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
        .section { padding: 80px 0; }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            display: inline-block;
            position: relative;
            margin-bottom: 12px;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--primary-gradient);
            border-radius: 4px;
            margin: 12px auto 0;
        }
        .section-title p {
            color: var(--text-secondary);
            font-size: 1.1rem;
            max-width: 640px;
            margin: 8px auto 0;
        }
        .text-center { text-align: center; }
        .text-gold { color: var(--text-gold); }
        .mt-1 { margin-top: 8px; }
        .mt-2 { margin-top: 16px; }
        .mt-3 { margin-top: 24px; }
        .mt-4 { margin-top: 32px; }
        .mb-1 { margin-bottom: 8px; }
        .mb-2 { margin-bottom: 16px; }
        .mb-3 { margin-bottom: 24px; }
        .mb-4 { margin-bottom: 32px; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: 2px solid transparent;
            text-align: center;
            justify-content: center;
        }
        .btn-primary {
            background: var(--primary-gradient);
            color: #fff;
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(232,168,56,0.40);
            color: #fff;
        }
        .btn-primary:active { transform: translateY(0); box-shadow: var(--shadow-sm); }
        .btn-outline {
            background: transparent;
            color: var(--primary-dark);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline:active { transform: translateY(0); }
        .btn-lg { padding: 16px 40px; font-size: 1.1rem; border-radius: var(--radius-md); }

        /* ===== Header & Navigation ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(13, 26, 42, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(232, 168, 56, 0.20);
            height: var(--header-h);
            transition: var(--transition);
        }
        .header.scrolled { background: rgba(13, 26, 42, 0.98); box-shadow: 0 4px 30px rgba(0,0,0,0.30); }
        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            height: var(--header-h);
            gap: 16px;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-light);
            text-decoration: none;
            flex-shrink: 0;
        }
        .navbar-brand:hover { color: var(--text-light); }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary-gradient);
            border-radius: var(--radius-sm);
            font-weight: 800;
            font-size: 0.9rem;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .navbar-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0 auto 0 24px;
        }
        .nav-item .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: rgba(255,255,255,0.75);
            font-weight: 500;
            font-size: 0.92rem;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-item .nav-link:hover { color: #fff; background: rgba(255,255,255,0.10); }
        .nav-item .nav-link.active { color: var(--text-gold); background: rgba(232,168,56,0.15); }
        .nav-item .nav-link:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
        .navbar-search {
            display: flex;
            align-items: center;
            background: rgba(255,255,255,0.10);
            border-radius: 40px;
            padding: 0 16px;
            height: 40px;
            flex: 1;
            max-width: 260px;
            transition: var(--transition);
            border: 1px solid rgba(255,255,255,0.08);
        }
        .navbar-search:focus-within { background: rgba(255,255,255,0.16); border-color: var(--primary); }
        .navbar-search .search-icon { color: rgba(255,255,255,0.50); font-size: 0.9rem; margin-right: 10px; flex-shrink: 0; }
        .navbar-search input {
            background: transparent;
            color: #fff;
            font-size: 0.9rem;
            width: 100%;
            height: 100%;
            padding: 4px 0;
        }
        .navbar-search input::placeholder { color: rgba(255,255,255,0.40); }
        .navbar-toggle { display: none; color: #fff; font-size: 1.4rem; padding: 8px; }

        /* ===== Hero / Banner ===== */
        .page-hero {
            position: relative;
            padding: 140px 0 80px;
            background: var(--bg-dark);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .page-hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.30;
            pointer-events: none;
        }
        .page-hero .container { position: relative; z-index: 2; }
        .page-hero h1 {
            color: var(--text-light);
            font-size: 2.6rem;
            max-width: 720px;
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.30);
        }
        .page-hero p {
            color: rgba(255,255,255,0.80);
            font-size: 1.15rem;
            max-width: 600px;
            margin-bottom: 24px;
        }
        .page-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255,255,255,0.55);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .page-hero .breadcrumb a { color: var(--primary-light); }
        .page-hero .breadcrumb a:hover { color: var(--text-gold); }
        .page-hero .breadcrumb .sep { color: rgba(255,255,255,0.30); }

        /* ===== Guide Cards ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 28px;
        }
        .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
        .guide-card-img {
            position: relative;
            height: 200px;
            overflow: hidden;
            background: var(--bg-dark);
        }
        .guide-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .guide-card:hover .guide-card-img img { transform: scale(1.05); }
        .guide-card-img .tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary-gradient);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.20);
        }
        .guide-card-body { padding: 22px 24px 24px; flex: 1; display: flex; flex-direction: column; }
        .guide-card-body h3 { font-size: 1.15rem; margin-bottom: 10px; }
        .guide-card-body h3 a { color: var(--text-primary); }
        .guide-card-body h3 a:hover { color: var(--primary-dark); }
        .guide-card-body p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.7; flex: 1; margin-bottom: 16px; }
        .guide-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .guide-card-meta .meta-item { display: flex; align-items: center; gap: 6px; }
        .guide-card-meta .meta-item i { font-size: 0.8rem; }

        /* ===== Featured Section ===== */
        .featured-section {
            background: var(--bg-section);
        }
        .featured-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .featured-content h2 { font-size: 2rem; margin-bottom: 20px; }
        .featured-content p { color: var(--text-secondary); font-size: 1.05rem; margin-bottom: 16px; }
        .featured-content ul { margin-top: 16px; }
        .featured-content ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 12px;
            color: var(--text-secondary);
        }
        .featured-content ul li i { color: var(--primary); font-size: 1rem; margin-top: 4px; flex-shrink: 0; }
        .featured-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .featured-image img { width: 100%; height: auto; }

        /* ===== Category Tags ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin: 32px 0 0;
        }
        .tag-cloud .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 22px;
            background: var(--bg-card);
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .tag-cloud .tag-item:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }
        .tag-cloud .tag-item i { font-size: 0.8rem; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { box-shadow: var(--shadow-md); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            gap: 16px;
        }
        .faq-question i { color: var(--primary); transition: var(--transition); font-size: 1rem; flex-shrink: 0; }
        .faq-question[aria-expanded="true"] i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .faq-answer.open { max-height: 400px; padding: 0 24px 20px; }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-box {
            text-align: center;
            padding: 60px 20px;
        }
        .cta-box h2 { color: var(--text-light); font-size: 2rem; margin-bottom: 16px; }
        .cta-box p { color: rgba(255,255,255,0.75); font-size: 1.1rem; max-width: 600px; margin: 0 auto 32px; }
        .cta-box .btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.70);
            padding: 56px 0 0;
            border-top: 1px solid rgba(232,168,56,0.15);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-logo { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; font-weight: 700; color: var(--text-light); margin-bottom: 14px; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.8; color: rgba(255,255,255,0.55); max-width: 320px; }
        .footer-col h4 { color: var(--text-light); font-size: 1rem; margin-bottom: 16px; font-weight: 600; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.55); font-size: 0.9rem; }
        .footer-col ul li a:hover { color: var(--text-gold); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.40);
        }
        .footer-bottom a { color: var(--primary-light); }
        .footer-bottom a:hover { color: var(--text-gold); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .featured-grid { gap: 28px; }
        }
        @media (max-width: 768px) {
            .navbar-nav { display: none; }
            .navbar-search { max-width: 180px; }
            .navbar-toggle { display: block; }
            .navbar-nav.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(13,26,42,0.98);
                backdrop-filter: blur(20px);
                padding: 16px 24px 24px;
                gap: 6px;
                border-bottom: 1px solid rgba(232,168,56,0.20);
                margin: 0;
            }
            .navbar-nav.open .nav-link { padding: 12px 16px; font-size: 1rem; }
            .page-hero { padding: 120px 0 60px; min-height: 280px; }
            .page-hero h1 { font-size: 1.8rem; }
            .page-hero p { font-size: 1rem; }
            .section { padding: 56px 0; }
            .section-title { margin-bottom: 32px; }
            .section-title h2 { font-size: 1.6rem; }
            .guide-grid { grid-template-columns: 1fr; gap: 20px; }
            .featured-grid { grid-template-columns: 1fr; }
            .featured-content h2 { font-size: 1.5rem; }
            .cta-box h2 { font-size: 1.5rem; }
            .cta-box p { font-size: 0.95rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            h1 { font-size: 2.0rem; }
            h2 { font-size: 1.5rem; }
        }
        @media (max-width: 520px) {
            .navbar { padding: 0 16px; gap: 10px; }
            .navbar-brand { font-size: 1rem; gap: 6px; }
            .brand-icon { width: 32px; height: 32px; font-size: 0.75rem; }
            .navbar-search { max-width: 140px; padding: 0 12px; height: 36px; }
            .navbar-search .search-icon { margin-right: 6px; font-size: 0.8rem; }
            .navbar-search input { font-size: 0.8rem; }
            .page-hero { padding: 100px 0 48px; min-height: 220px; }
            .page-hero h1 { font-size: 1.4rem; }
            .page-hero p { font-size: 0.9rem; }
            .guide-card-img { height: 160px; }
            .guide-card-body { padding: 16px 18px 20px; }
            .tag-cloud .tag-item { padding: 6px 16px; font-size: 0.8rem; }
            .faq-question { padding: 14px 16px; font-size: 0.92rem; }
            .faq-answer { font-size: 0.88rem; }
            .cta-box { padding: 40px 16px; }
            .btn-lg { padding: 14px 28px; font-size: 1rem; }
            .container { padding: 0 16px; }
        }