/* roulang page: index */
/* ===== Design Variables ===== */
:root {
  --primary: #1a4a8a;
  --primary-dark: #0f3566;
  --primary-light: #2a6bc4;
  --accent: #e8503a;
  --accent-hover: #d43a2a;
  --bg-dark: #0b1a2f;
  --bg-card: #ffffff;
  --bg-section: #f5f8fc;
  --bg-light: #eef3f9;
  --text-light: #ffffff;
  --text-dark: #1a2332;
  --text-muted: #5e6f8d;
  --text-body: #2c3e50;
  --border-color: #dce4ed;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 6px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.10);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.14);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
  --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-sans); font-size: 16px; line-height: 1.7; color: var(--text-body); background: var(--bg-card); }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-light); }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { color: var(--text-dark); font-weight: 700; line-height: 1.3; }
/* ===== Container ===== */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
@media (max-width: 768px) { .container { padding: 0 16px; } }
/* ===== Header / Nav ===== */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: var(--nav-height); background: rgba(11,26,47,0.92); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255,255,255,0.08); transition: var(--transition); }
.site-header.scrolled { background: rgba(11,26,47,0.98); box-shadow: 0 4px 20px rgba(0,0,0,0.3); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--nav-height); }
.logo { display: flex; align-items: center; gap: 10px; font-size: 1.35rem; font-weight: 800; color: var(--text-light); letter-spacing: 0.5px; }
.logo i { color: var(--accent); font-size: 1.6rem; }
.logo span { background: linear-gradient(135deg, #f0f4ff, #b0c8f0); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-main { display: flex; align-items: center; gap: 8px; }
.nav-main a { display: flex; align-items: center; gap: 6px; padding: 8px 18px; border-radius: 30px; color: rgba(255,255,255,0.75); font-size: 0.92rem; font-weight: 500; transition: var(--transition); white-space: nowrap; }
.nav-main a:hover, .nav-main a.active { color: #fff; background: rgba(255,255,255,0.10); }
.nav-main a.active { background: var(--primary-light); color: #fff; }
.nav-cta { display: flex; align-items: center; gap: 10px; }
.btn-nav { display: inline-flex; align-items: center; gap: 6px; padding: 8px 22px; border-radius: 30px; font-size: 0.88rem; font-weight: 600; background: var(--accent); color: #fff; border: none; cursor: pointer; transition: var(--transition); }
.btn-nav:hover { background: var(--accent-hover); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(232,80,58,0.35); }
.menu-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.6rem; cursor: pointer; padding: 4px; }
@media (max-width: 900px) {
  .nav-main { display: none; position: absolute; top: var(--nav-height); left: 0; right: 0; background: rgba(11,26,47,0.98); flex-direction: column; padding: 16px 20px; gap: 4px; border-bottom: 1px solid rgba(255,255,255,0.08); }
  .nav-main.open { display: flex; }
  .nav-main a { padding: 12px 16px; border-radius: 8px; width: 100%; }
  .menu-toggle { display: block; }
  .nav-cta .btn-nav { padding: 6px 16px; font-size: 0.82rem; }
}
/* ===== Hero ===== */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: 120px 24px 80px; background: var(--bg-dark); overflow: hidden; }
.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(11,26,47,0.88) 0%, rgba(11,26,47,0.70) 50%, rgba(11,26,47,0.92) 100%); }
.hero-content { position: relative; z-index: 2; max-width: 820px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 20px; border-radius: 30px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); color: rgba(255,255,255,0.85); font-size: 0.85rem; font-weight: 500; margin-bottom: 28px; letter-spacing: 0.3px; }
.hero-badge i { color: var(--accent); }
.hero h1 { font-size: 3.2rem; font-weight: 900; color: var(--text-light); line-height: 1.2; margin-bottom: 20px; letter-spacing: -0.5px; }
.hero h1 .highlight { background: linear-gradient(135deg, #f7b733, #fc4a1a); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-sub { font-size: 1.18rem; color: rgba(255,255,255,0.7); max-width: 660px; margin: 0 auto 36px; line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.btn-hero { display: inline-flex; align-items: center; gap: 10px; padding: 14px 36px; border-radius: 40px; font-size: 1.05rem; font-weight: 700; border: none; cursor: pointer; transition: var(--transition); }
.btn-hero-primary { background: var(--accent); color: #fff; box-shadow: 0 6px 30px rgba(232,80,58,0.35); }
.btn-hero-primary:hover { background: var(--accent-hover); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 40px rgba(232,80,58,0.45); }
.btn-hero-secondary { background: rgba(255,255,255,0.10); color: #fff; border: 1px solid rgba(255,255,255,0.20); }
.btn-hero-secondary:hover { background: rgba(255,255,255,0.18); color: #fff; transform: translateY(-2px); }
.hero-stats { display: flex; flex-wrap: wrap; gap: 30px 50px; justify-content: center; margin-top: 50px; padding-top: 36px; border-top: 1px solid rgba(255,255,255,0.08); }
.hero-stat-item { text-align: center; }
.hero-stat-num { font-size: 2rem; font-weight: 900; color: var(--text-light); line-height: 1.2; }
.hero-stat-label { font-size: 0.88rem; color: rgba(255,255,255,0.55); margin-top: 4px; }
@media (max-width: 768px) {
  .hero { min-height: 80vh; padding: 100px 16px 60px; }
  .hero h1 { font-size: 2.2rem; }
  .hero-sub { font-size: 1rem; }
  .btn-hero { padding: 12px 28px; font-size: 0.95rem; }
  .hero-stats { gap: 20px 30px; }
  .hero-stat-num { font-size: 1.6rem; }
}
@media (max-width: 520px) {
  .hero h1 { font-size: 1.7rem; }
  .hero-actions { flex-direction: column; align-items: center; }
}
/* ===== Section ===== */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-section); }
.section-dark { background: var(--bg-dark); color: var(--text-light); }
.section-dark .section-title, .section-dark .section-sub { color: var(--text-light); }
.section-title { font-size: 2.2rem; font-weight: 800; text-align: center; margin-bottom: 12px; letter-spacing: -0.3px; }
.section-sub { font-size: 1.05rem; color: var(--text-muted); text-align: center; max-width: 640px; margin: 0 auto 48px; line-height: 1.7; }
.section-sub-light { color: rgba(255,255,255,0.65); }
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-title { font-size: 1.7rem; }
  .section-sub { font-size: 0.95rem; margin-bottom: 32px; }
}
/* ===== Cards Grid ===== */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1024px) {
  .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .card-grid, .card-grid-2, .card-grid-4 { grid-template-columns: 1fr; gap: 20px; }
}
/* ===== Feature Card ===== */
.feature-card { background: var(--bg-card); border-radius: var(--radius-md); padding: 32px 28px; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); transition: var(--transition); text-align: center; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent; }
.feature-icon { width: 60px; height: 60px; border-radius: 18px; display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; font-size: 1.6rem; color: #fff; background: var(--primary); }
.feature-icon.accent { background: var(--accent); }
.feature-icon.green { background: #1ea87a; }
.feature-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.feature-card p { font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; }
/* ===== Service Card (with image) ===== */
.service-card { background: var(--bg-card); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); transition: var(--transition); }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.service-card-img { width: 100%; height: 200px; object-fit: cover; display: block; background: var(--bg-light); }
.service-card-body { padding: 20px 24px 24px; }
.service-card-body h3 { font-size: 1.1rem; margin-bottom: 6px; }
.service-card-body p { font-size: 0.92rem; color: var(--text-muted); line-height: 1.6; }
.service-card-tag { display: inline-block; padding: 2px 12px; border-radius: 20px; font-size: 0.75rem; font-weight: 600; background: var(--bg-light); color: var(--primary); margin-bottom: 10px; }
/* ===== News Card (CMS list) ===== */
.news-card { display: flex; gap: 20px; background: var(--bg-card); border-radius: var(--radius-md); padding: 22px 26px; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); transition: var(--transition); align-items: flex-start; }
.news-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.news-card-icon { flex-shrink: 0; width: 48px; height: 48px; border-radius: 12px; background: var(--bg-light); display: flex; align-items: center; justify-content: center; color: var(--primary); font-size: 1.2rem; }
.news-card-body { flex: 1; min-width: 0; }
.news-card-body h3 { font-size: 1.05rem; margin-bottom: 4px; font-weight: 600; }
.news-card-body h3 a { color: var(--text-dark); }
.news-card-body h3 a:hover { color: var(--primary); }
.news-card-meta { display: flex; flex-wrap: wrap; gap: 12px; font-size: 0.82rem; color: var(--text-muted); margin-top: 6px; }
.news-card-meta span { display: flex; align-items: center; gap: 4px; }
.news-card-meta .cat-tag { padding: 1px 10px; border-radius: 12px; background: var(--bg-light); color: var(--primary); font-weight: 500; }
.news-card-excerpt { font-size: 0.9rem; color: var(--text-muted); margin-top: 8px; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
@media (max-width: 600px) {
  .news-card { flex-direction: column; padding: 18px; }
  .news-card-icon { width: 40px; height: 40px; font-size: 1rem; }
}
/* ===== Steps ===== */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.step-item { text-align: center; position: relative; }
.step-num { width: 48px; height: 48px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; font-weight: 800; color: #fff; background: var(--primary); margin: 0 auto 16px; position: relative; z-index: 2; }
.step-item.accent .step-num { background: var(--accent); }
.step-item.green .step-num { background: #1ea87a; }
.step-item.amber .step-num { background: #d4942b; }
.step-item h4 { font-size: 1.05rem; margin-bottom: 6px; }
.step-item p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }
.steps-connector { display: none; }
@media (min-width: 769px) {
  .steps-grid { position: relative; }
  .steps-grid::before { content: ''; position: absolute; top: 24px; left: 12%; right: 12%; height: 2px; background: var(--border-color); z-index: 0; }
}
@media (max-width: 768px) {
  .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .steps-grid::before { display: none; }
}
@media (max-width: 480px) {
  .steps-grid { grid-template-columns: 1fr; }
}
/* ===== Stats ===== */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; text-align: center; }
.stat-item { padding: 20px; }
.stat-num { font-size: 2.8rem; font-weight: 900; color: var(--text-light); line-height: 1.2; }
.stat-num .accent { color: var(--accent); }
.stat-label { font-size: 0.95rem; color: rgba(255,255,255,0.6); margin-top: 6px; }
@media (max-width: 768px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat-num { font-size: 2rem; }
}
/* ===== FAQ ===== */
.faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--bg-card); border-radius: var(--radius-md); border: 1px solid var(--border-color); overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: var(--primary-light); }
.faq-question { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 24px; cursor: pointer; font-size: 1rem; font-weight: 600; color: var(--text-dark); background: none; border: none; width: 100%; text-align: left; transition: var(--transition); }
.faq-question i { color: var(--primary); transition: var(--transition); font-size: 0.9rem; flex-shrink: 0; }
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s cubic-bezier(0.4,0,0.2,1), padding 0.3s; padding: 0 24px; font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; }
.faq-item.open .faq-answer { max-height: 300px; padding: 0 24px 20px; }
/* ===== CTA ===== */
.cta-section { text-align: center; padding: 80px 24px; background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%); position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat; opacity: 0.08; }
.cta-content { position: relative; z-index: 2; max-width: 700px; margin: 0 auto; }
.cta-content h2 { font-size: 2.2rem; font-weight: 800; color: #fff; margin-bottom: 16px; }
.cta-content p { font-size: 1.05rem; color: rgba(255,255,255,0.75); margin-bottom: 32px; line-height: 1.7; }
.btn-cta { display: inline-flex; align-items: center; gap: 10px; padding: 16px 44px; border-radius: 40px; font-size: 1.1rem; font-weight: 700; background: var(--accent); color: #fff; border: none; cursor: pointer; transition: var(--transition); box-shadow: 0 6px 30px rgba(232,80,58,0.35); }
.btn-cta:hover { background: var(--accent-hover); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 40px rgba(232,80,58,0.45); }
.btn-cta-outline { background: transparent; border: 2px solid rgba(255,255,255,0.35); color: #fff; box-shadow: none; margin-left: 12px; }
.btn-cta-outline:hover { background: rgba(255,255,255,0.10); border-color: rgba(255,255,255,0.6); color: #fff; box-shadow: none; }
@media (max-width: 600px) {
  .cta-content h2 { font-size: 1.6rem; }
  .cta-content p { font-size: 0.95rem; }
  .btn-cta { padding: 14px 32px; font-size: 1rem; }
  .cta-actions { display: flex; flex-direction: column; gap: 10px; align-items: center; }
  .btn-cta-outline { margin-left: 0; }
}
/* ===== Footer ===== */
.site-footer { background: var(--bg-dark); color: rgba(255,255,255,0.6); padding: 48px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 32px; }
.footer-brand .logo { margin-bottom: 12px; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
.footer-col h4 { font-size: 1rem; font-weight: 700; color: var(--text-light); margin-bottom: 16px; }
.footer-col a { display: block; padding: 4px 0; font-size: 0.9rem; color: rgba(255,255,255,0.55); }
.footer-col a:hover { color: var(--text-light); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 24px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; font-size: 0.85rem; }
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--text-light); }
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}
/* ===== Empty state ===== */
.empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); font-size: 1rem; background: var(--bg-light); border-radius: var(--radius-md); }
.empty-state i { font-size: 2.4rem; color: var(--text-muted); margin-bottom: 12px; opacity: 0.5; }
/* ===== Utilities ===== */
.text-center { text-align: center; }
.mt-1 { margin-top: 12px; }
.mt-2 { margin-top: 24px; }
.mb-1 { margin-bottom: 12px; }
.mb-2 { margin-bottom: 24px; }
.gap-sm { gap: 12px; }
.flex-center { display: flex; align-items: center; justify-content: center; }
/* ===== Smooth reveal ===== */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #f1c0b8;
            --primary-gradient: linear-gradient(135deg, #e63946 0%, #c1121f 100%);
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --accent-gold: #e9c46a;
            --bg-dark: #0d1b2a;
            --bg-darker: #070f18;
            --bg-light: #f8f9fa;
            --bg-card: #ffffff;
            --bg-section-alt: #f1f5f9;
            --text-dark: #1a1a2e;
            --text-body: #2d3436;
            --text-muted: #636e72;
            --text-light: #dfe6e9;
            --text-white: #ffffff;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.15);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.2);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --header-height: 70px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            line-height: 1.3;
            font-weight: 700;
        }
        h1 {
            font-size: clamp(2rem, 4.5vw, 3.2rem);
        }
        h2 {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
        }
        h3 {
            font-size: clamp(1.15rem, 2vw, 1.5rem);
        }
        h4 {
            font-size: 1.1rem;
        }
        p {
            margin-bottom: 1rem;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(13, 27, 42, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            height: var(--header-height);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .site-header.scrolled {
            background: rgba(13, 27, 42, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 0.5px;
            transition: opacity var(--transition);
        }
        .logo:hover {
            opacity: 0.9;
            color: var(--text-white);
        }
        .logo i {
            color: var(--primary);
            font-size: 1.6rem;
            background: rgba(230, 57, 70, 0.2);
            padding: 6px;
            border-radius: 50%;
        }
        .logo span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-main a {
            color: rgba(255, 255, 255, 0.7);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-main a i {
            font-size: 0.85rem;
        }
        .nav-main a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-main a.active {
            color: var(--text-white);
            background: var(--primary-gradient);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.35);
        }
        .nav-main a.active:hover {
            box-shadow: 0 6px 24px rgba(230, 57, 70, 0.5);
            transform: translateY(-1px);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.15);
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-white);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== 移动端导航 ===== */
        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-main {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(13, 27, 42, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                transform: translateY(-110%);
                opacity: 0;
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                pointer-events: none;
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-main a {
                padding: 12px 16px;
                width: 100%;
                font-size: 1rem;
                border-radius: var(--radius-sm);
            }
            .nav-main a.active {
                background: var(--primary-gradient);
            }
        }
        @media (min-width: 769px) {
            .nav-main {
                display: flex !important;
                opacity: 1 !important;
                transform: none !important;
                position: static !important;
                background: transparent !important;
                box-shadow: none !important;
                padding: 0 !important;
                pointer-events: all !important;
                border-bottom: none !important;
            }
        }

        /* ===== Hero / Banner ===== */
        .page-hero {
            padding: calc(var(--header-height) + 60px) 0 80px;
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.92) 0%, rgba(13, 27, 42, 0.7) 100%);
            z-index: 1;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero h1 {
            color: var(--text-white);
            font-size: clamp(2.2rem, 5vw, 3.6rem);
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .page-hero h1 i {
            color: var(--accent-gold);
            margin-right: 12px;
        }
        .page-hero p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.15rem;
            max-width: 700px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(230, 57, 70, 0.2);
            border: 1px solid rgba(230, 57, 70, 0.3);
            padding: 6px 18px;
            border-radius: 50px;
            color: var(--accent-gold);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .hero-badge i {
            color: var(--primary);
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
            line-height: 1.2;
        }
        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        .btn-primary {
            background: var(--primary-gradient);
            color: var(--text-white);
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(230, 57, 70, 0.5);
            color: var(--text-white);
        }
        .btn-primary:active {
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.3);
        }
        .btn-outline:hover {
            border-color: var(--text-white);
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline-light:hover {
            background: var(--text-white);
            color: var(--primary-dark);
            border-color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 10px 22px;
            font-size: 0.9rem;
        }
        .btn-lg {
            padding: 18px 40px;
            font-size: 1.1rem;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-light);
        }
        .section-dark h2,
        .section-dark h3 {
            color: var(--text-white);
        }
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-header h2 {
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--primary-gradient);
            border-radius: 4px;
            margin: 12px auto 0;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 12px auto 0;
        }
        .section-dark .section-header p {
            color: rgba(255, 255, 255, 0.65);
        }

        /* ===== 卡片系统 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .card-image {
            position: relative;
            overflow: hidden;
            height: 200px;
        }
        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-image img {
            transform: scale(1.06);
        }
        .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary-gradient);
            color: var(--text-white);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
        }
        .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }
        .card-body h3 a {
            color: var(--text-dark);
        }
        .card-body h3 a:hover {
            color: var(--primary);
        }
        .card-body p {
            color: var(--text-muted);
            font-size: 0.92rem;
            margin-bottom: 14px;
            flex: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.82rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
            margin-top: auto;
        }
        .card-meta i {
            color: var(--primary);
            width: 16px;
        }
        .card-footer-link {
            margin-top: 14px;
        }
        .card-footer-link a {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .card-footer-link a:hover {
            gap: 10px;
        }

        /* ===== 网格 ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .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;
        }

        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section {
                padding: 50px 0;
            }
            .page-hero {
                padding: calc(var(--header-height) + 40px) 0 50px;
                min-height: 320px;
            }
        }

        /* ===== 特色/卖点区块 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            background: var(--primary-gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: var(--text-white);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.25);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 0.92rem;
            margin-bottom: 0;
        }
        @media (max-width: 768px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ===== 流程步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            position: relative;
            transition: all var(--transition);
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-number {
            width: 48px;
            height: 48px;
            background: var(--primary-gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-white);
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.25);
        }
        .step-card h3 {
            font-size: 1.05rem;
            margin-bottom: 8px;
        }
        .step-card p {
            color: var(--text-muted);
            font-size: 0.88rem;
            margin-bottom: 0;
        }
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 适用场景 ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .scenario-card {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            align-items: flex-start;
        }
        .scenario-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .scenario-icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            background: rgba(230, 57, 70, 0.1);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--primary);
        }
        .scenario-card h3 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        .scenario-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0;
        }
        @media (max-width: 768px) {
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .scenario-card {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* ===== 统计数字 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            padding: 28px 16px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-number {
                font-size: 2rem;
            }
        }

        /* ===== Tag / 标签 ===== */
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary-dark);
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 500;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .tag:hover {
            background: var(--primary-gradient);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.25);
        }
        .tag-outline {
            background: transparent;
            border: 1px solid var(--border-medium);
            color: var(--text-muted);
        }
        .tag-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(230, 57, 70, 0.05);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            color: var(--text-dark);
            font-size: 1rem;
            gap: 16px;
            user-select: none;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(230, 57, 70, 0.04);
        }
        .faq-question i {
            color: var(--primary);
            font-size: 1.1rem;
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
            padding: 80px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.92) 0%, rgba(13, 27, 42, 0.8) 100%);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            color: var(--text-white);
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            margin-bottom: 14px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-darker);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand .logo {
            font-size: 1.2rem;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            color: var(--text-white);
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-col a i {
            width: 20px;
            color: var(--primary);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            gap: 12px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }
        @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;
            }
        }

        /* ===== 内容卡片列表（赛事分类展示） ===== */
        .event-category-list {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 28px;
        }
        .event-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .event-card .card-image {
            height: 180px;
        }
        .event-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .event-card .card-body {
            padding: 20px 22px 22px;
        }
        .event-card .card-body h3 {
            font-size: 1.1rem;
            margin-bottom: 6px;
        }
        .event-card .card-body .event-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .event-card .card-body .event-meta i {
            color: var(--primary);
            width: 16px;
        }
        .event-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .event-card .card-body .tag-list {
            margin-top: auto;
        }
        @media (max-width: 1024px) {
            .event-category-list {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .event-category-list {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 装饰条纹 ===== */
        .divider {
            width: 80px;
            height: 4px;
            background: var(--primary-gradient);
            border-radius: 4px;
            margin: 0 auto 20px;
        }

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

        /* ===== 响应式微调 ===== */
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-actions .btn,
            .cta-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero p {
                font-size: 0.95rem;
            }
            .stat-number {
                font-size: 1.6rem;
            }
        }
        /* ===== 滚动条美化 ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-dark);
        }

        /* ===== 选中文本 ===== */
        ::selection {
            background: var(--primary);
            color: var(--text-white);
        }

/* roulang page: article */
:root {
  --clr-primary: #0d1b2a;
  --clr-primary-light: #1b2d45;
  --clr-accent: #c9a84c;
  --clr-accent-hover: #dbb95d;
  --clr-accent-dark: #b8963a;
  --clr-blue: #2a6f97;
  --clr-blue-light: #3d8bbd;
  --clr-bg: #f0f4f8;
  --clr-bg-white: #ffffff;
  --clr-bg-card: #ffffff;
  --clr-text: #1a1a2e;
  --clr-text-light: #4a5568;
  --clr-text-muted: #8a94a6;
  --clr-border: #e2e8f0;
  --clr-border-light: #edf2f7;
  --clr-success: #2d8a4e;
  --clr-warning: #d4a017;
  --clr-danger: #c0392b;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.16);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  --spacing-section: 5rem;
  --container-max: 1200px;
  --container-pad: 1.5rem;
}

*, *::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); background: var(--clr-bg); color: var(--clr-text); line-height: 1.7; font-size: 1rem; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--clr-blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--clr-accent); }
a:focus-visible { outline: 2px solid var(--clr-accent); outline-offset: 2px; border-radius: 2px; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea { font-family: inherit; font-size: 1rem; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--clr-primary); }
h1 { font-size: 2.6rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.4rem; }
h4 { font-size: 1.15rem; }
p { margin-bottom: 1rem; color: var(--clr-text-light); }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 var(--container-pad); }

/* ===== Header & Nav ===== */
.site-header { background: var(--clr-primary); position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 20px rgba(0,0,0,0.3); }
.nav-main { display: flex; align-items: center; justify-content: space-between; padding: 0 var(--container-pad); max-width: var(--container-max); margin: 0 auto; height: 68px; }
.nav-main .logo { display: flex; align-items: center; gap: 0.5rem; font-size: 1.35rem; font-weight: 800; color: #fff; letter-spacing: 0.5px; transition: opacity var(--transition); }
.nav-main .logo i { color: var(--clr-accent); font-size: 1.5rem; }
.nav-main .logo span { background: linear-gradient(135deg, #fff 60%, var(--clr-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-main .logo:hover { opacity: 0.85; }
.nav-links { display: flex; align-items: center; gap: 0.25rem; }
.nav-links a { padding: 0.5rem 1.1rem; border-radius: var(--radius-sm); color: rgba(255,255,255,0.8); font-size: 0.95rem; font-weight: 500; transition: all var(--transition); display: flex; align-items: center; gap: 0.4rem; position: relative; }
.nav-links a i { font-size: 0.9rem; }
.nav-links a:hover { background: rgba(255,255,255,0.08); color: #fff; }
.nav-links a.active { background: var(--clr-accent); color: var(--clr-primary); font-weight: 600; }
.nav-links a.active:hover { background: var(--clr-accent-hover); color: var(--clr-primary); }
.nav-toggle { display: none; background: none; color: #fff; font-size: 1.5rem; padding: 0.25rem; border-radius: var(--radius-sm); transition: background var(--transition); }
.nav-toggle:hover { background: rgba(255,255,255,0.1); }

/* ===== Hero / Article Banner ===== */
.article-banner { background: var(--clr-primary); background-image: linear-gradient(135deg, rgba(13,27,42,0.94) 0%, rgba(27,45,69,0.88) 100%), url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; padding: 4rem 0 3.5rem; position: relative; overflow: hidden; }
.article-banner::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 80px; background: linear-gradient(to top, var(--clr-bg), transparent); }
.article-banner .container { position: relative; z-index: 2; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-bottom: 1.5rem; }
.breadcrumb a { color: var(--clr-accent); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--clr-accent-hover); }
.breadcrumb span { color: rgba(255,255,255,0.45); }
.article-banner h1 { font-size: 2.4rem; color: #fff; max-width: 900px; line-height: 1.25; margin-bottom: 1rem; text-shadow: 0 2px 12px rgba(0,0,0,0.3); }
.article-meta { display: flex; flex-wrap: wrap; gap: 1.25rem 2rem; align-items: center; color: rgba(255,255,255,0.75); font-size: 0.92rem; }
.article-meta i { margin-right: 0.3rem; color: var(--clr-accent); }
.article-meta .category-badge { display: inline-block; background: var(--clr-accent); color: var(--clr-primary); padding: 0.2rem 1rem; border-radius: 20px; font-size: 0.82rem; font-weight: 600; }

/* ===== Main Content ===== */
.article-main { padding: 3rem 0 var(--spacing-section); }
.article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 3rem; }
.article-body { background: var(--clr-bg-white); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: 2.5rem; }
.article-body .cms-content { font-size: 1.05rem; line-height: 1.9; color: var(--clr-text-light); }
.article-body .cms-content h2, .article-body .cms-content h3 { margin-top: 2rem; margin-bottom: 1rem; color: var(--clr-primary); }
.article-body .cms-content p { margin-bottom: 1.2rem; }
.article-body .cms-content img { border-radius: var(--radius-md); margin: 1.5rem 0; box-shadow: var(--shadow-sm); }
.article-body .cms-content ul, .article-body .cms-content ol { margin-bottom: 1.2rem; padding-left: 1.5rem; }
.article-body .cms-content li { margin-bottom: 0.5rem; color: var(--clr-text-light); }
.article-body .cms-content ul li { list-style: disc; }
.article-body .cms-content ol li { list-style: decimal; }
.article-body .cms-content a { color: var(--clr-blue); text-decoration: underline; }
.article-body .cms-content a:hover { color: var(--clr-accent); }
.article-body .cms-content blockquote { border-left: 4px solid var(--clr-accent); padding: 0.75rem 1.5rem; margin: 1.5rem 0; background: var(--clr-bg); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--clr-text-light); font-style: italic; }
.article-body .cms-content table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; }
.article-body .cms-content th, .article-body .cms-content td { border: 1px solid var(--clr-border); padding: 0.75rem 1rem; text-align: left; }
.article-body .cms-content th { background: var(--clr-primary); color: #fff; font-weight: 600; }
.article-body .cms-content tr:nth-child(even) { background: var(--clr-bg); }
.article-not-found { text-align: center; padding: 3rem 1rem; }
.article-not-found i { font-size: 3.5rem; color: var(--clr-text-muted); margin-bottom: 1rem; }
.article-not-found h2 { font-size: 1.8rem; margin-bottom: 0.75rem; }
.article-not-found p { color: var(--clr-text-muted); margin-bottom: 1.5rem; }
.article-not-found .btn-back { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.7rem 2rem; background: var(--clr-accent); color: var(--clr-primary); border-radius: var(--radius-md); font-weight: 600; transition: all var(--transition); }
.article-not-found .btn-back:hover { background: var(--clr-accent-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* ===== Sidebar ===== */
.article-sidebar { display: flex; flex-direction: column; gap: 2rem; }
.sidebar-widget { background: var(--clr-bg-white); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: 1.5rem; border: 1px solid var(--clr-border-light); }
.sidebar-widget h3 { font-size: 1.1rem; margin-bottom: 1.2rem; padding-bottom: 0.6rem; border-bottom: 2px solid var(--clr-accent); display: flex; align-items: center; gap: 0.5rem; }
.sidebar-widget h3 i { color: var(--clr-accent); }
.sidebar-list { display: flex; flex-direction: column; gap: 0.8rem; }
.sidebar-list a { display: flex; gap: 0.8rem; align-items: flex-start; padding: 0.6rem 0; border-bottom: 1px solid var(--clr-border-light); transition: all var(--transition); }
.sidebar-list a:last-child { border-bottom: none; }
.sidebar-list a:hover { padding-left: 0.4rem; }
.sidebar-list .thumb { width: 60px; height: 60px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0; background: var(--clr-bg); }
.sidebar-list .info { flex: 1; min-width: 0; }
.sidebar-list .info .title { font-size: 0.9rem; font-weight: 600; color: var(--clr-text); 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(--clr-text-muted); margin-top: 0.2rem; }
.sidebar-cta-box { background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-light)); border-radius: var(--radius-lg); padding: 1.8rem 1.5rem; text-align: center; color: #fff; }
.sidebar-cta-box h4 { color: #fff; font-size: 1.1rem; margin-bottom: 0.5rem; }
.sidebar-cta-box p { color: rgba(255,255,255,0.7); font-size: 0.9rem; margin-bottom: 1.2rem; }
.sidebar-cta-box .btn-cta { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.7rem 1.8rem; background: var(--clr-accent); color: var(--clr-primary); border-radius: var(--radius-md); font-weight: 700; transition: all var(--transition); }
.sidebar-cta-box .btn-cta:hover { background: var(--clr-accent-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(201,168,76,0.3); }

/* ===== Related Articles ===== */
.related-section { padding: 0 0 var(--spacing-section); }
.related-section .section-title { text-align: center; margin-bottom: 2.5rem; }
.related-section .section-title h2 { font-size: 2rem; position: relative; display: inline-block; }
.related-section .section-title h2::after { content: ''; display: block; width: 60px; height: 3px; background: var(--clr-accent); margin: 0.75rem auto 0; border-radius: 4px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.related-card { background: var(--clr-bg-white); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); overflow: hidden; transition: all var(--transition); border: 1px solid var(--clr-border-light); }
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.related-card .card-img { width: 100%; height: 180px; object-fit: cover; display: block; background: var(--clr-bg); }
.related-card .card-body { padding: 1.2rem 1.2rem 1.5rem; }
.related-card .card-body .card-cat { font-size: 0.78rem; color: var(--clr-accent-dark); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 0.3rem; }
.related-card .card-body h3 { font-size: 1.05rem; margin-bottom: 0.4rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .card-body h3 a { color: var(--clr-primary); }
.related-card .card-body h3 a:hover { color: var(--clr-accent); }
.related-card .card-body p { font-size: 0.88rem; color: var(--clr-text-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 0.5rem; }
.related-card .card-body .card-date { font-size: 0.8rem; color: var(--clr-text-muted); display: flex; align-items: center; gap: 0.3rem; }

/* ===== CTA ===== */
.cta-section { background: var(--clr-primary); background-image: linear-gradient(135deg, rgba(13,27,42,0.92) 0%, rgba(27,45,69,0.88) 100%), url('/assets/images/backpic/back-2.png'); background-size: cover; background-position: center; padding: 4.5rem 0; text-align: center; }
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { font-size: 2.2rem; color: #fff; margin-bottom: 0.75rem; }
.cta-section p { font-size: 1.1rem; color: rgba(255,255,255,0.7); max-width: 650px; margin: 0 auto 1.8rem; }
.cta-section .btn-group { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }
.cta-section .btn-primary { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.85rem 2.5rem; background: var(--clr-accent); color: var(--clr-primary); border-radius: var(--radius-md); font-weight: 700; font-size: 1.05rem; transition: all var(--transition); box-shadow: 0 4px 16px rgba(201,168,76,0.3); }
.cta-section .btn-primary:hover { background: var(--clr-accent-hover); transform: translateY(-3px); box-shadow: 0 8px 32px rgba(201,168,76,0.4); }
.cta-section .btn-outline { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.85rem 2.5rem; background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.3); border-radius: var(--radius-md); font-weight: 600; font-size: 1.05rem; transition: all var(--transition); }
.cta-section .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: var(--clr-accent); color: var(--clr-accent); transform: translateY(-3px); }

/* ===== Footer ===== */
.site-footer { background: var(--clr-primary); color: rgba(255,255,255,0.7); padding: 3.5rem 0 0; border-top: 3px solid var(--clr-accent); }
.footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 2.5rem; padding-bottom: 2.5rem; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand .logo { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 1.4rem; font-weight: 800; color: #fff; margin-bottom: 0.75rem; }
.footer-brand .logo i { color: var(--clr-accent); }
.footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.55); line-height: 1.7; max-width: 360px; }
.footer-col h4 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 1rem; position: relative; padding-bottom: 0.5rem; }
.footer-col h4::after { content: ''; position: absolute; bottom: 0; left: 0; width: 30px; height: 2px; background: var(--clr-accent); }
.footer-col a { display: block; color: rgba(255,255,255,0.55); font-size: 0.9rem; padding: 0.3rem 0; transition: all var(--transition); }
.footer-col a:hover { color: var(--clr-accent); padding-left: 0.3rem; }
.footer-col a i { width: 1.2rem; text-align: center; margin-right: 0.3rem; color: var(--clr-accent); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; padding: 1.5rem 0; font-size: 0.82rem; color: rgba(255,255,255,0.4); }
.footer-bottom a { color: rgba(255,255,255,0.4); transition: color var(--transition); }
.footer-bottom a:hover { color: var(--clr-accent); }

/* ===== Not Found State ===== */
.not-found-state { display: flex; align-items: center; justify-content: center; min-height: 50vh; text-align: center; padding: 3rem 1rem; }
.not-found-state .nf-icon { font-size: 4rem; color: var(--clr-text-muted); margin-bottom: 1rem; }
.not-found-state h2 { font-size: 2rem; margin-bottom: 0.5rem; }
.not-found-state p { color: var(--clr-text-muted); margin-bottom: 1.5rem; max-width: 400px; margin-left: auto; margin-right: auto; }
.not-found-state .btn-home { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.7rem 2rem; background: var(--clr-accent); color: var(--clr-primary); border-radius: var(--radius-md); font-weight: 600; transition: all var(--transition); }
.not-found-state .btn-home:hover { background: var(--clr-accent-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 768px) {
  :root { --spacing-section: 3rem; }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
  .article-banner { padding: 2.5rem 0 2rem; }
  .article-banner h1 { font-size: 1.7rem; }
  .article-meta { gap: 0.8rem 1.2rem; font-size: 0.85rem; }
  .article-body { padding: 1.5rem; }
  .nav-links { gap: 0; }
  .nav-links a { padding: 0.4rem 0.7rem; font-size: 0.85rem; }
  .nav-links a i { display: none; }
  .article-sidebar { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .related-card .card-img { height: 200px; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
  .cta-section h2 { font-size: 1.6rem; }
  .cta-section p { font-size: 0.95rem; }
}
@media (max-width: 520px) {
  .nav-main { height: 58px; }
  .nav-main .logo { font-size: 1.1rem; }
  .nav-main .logo i { font-size: 1.2rem; }
  .nav-links a { padding: 0.3rem 0.5rem; font-size: 0.78rem; gap: 0.2rem; }
  .article-banner h1 { font-size: 1.4rem; }
  .article-body { padding: 1rem; }
  .article-body .cms-content { font-size: 0.95rem; }
  .related-card .card-img { height: 160px; }
  .cta-section .btn-primary, .cta-section .btn-outline { padding: 0.7rem 1.5rem; font-size: 0.9rem; }
}