/* roulang page: index */
:root {
  --primary: #0f1a2e;
  --primary-light: #1a2d4a;
  --primary-dark: #0a111f;
  --secondary: #c9a84c;
  --secondary-light: #e0c06a;
  --secondary-dark: #a88830;
  --accent: #f7f3ee;
  --bg: #ffffff;
  --bg-alt: #f9f7f4;
  --bg-dark: #0f1a2e;
  --text: #1a2332;
  --text-light: #6b7280;
  --text-white: #f9f7f4;
  --border: #e5e1db;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(15,26,46,0.08);
  --shadow-lg: 0 12px 48px rgba(15,26,46,0.14);
  --shadow-gold: 0 4px 24px rgba(201,168,76,0.25);
  --font: 'Inter', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --max-width: 1200px;
  --nav-height: 72px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--secondary); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
button { cursor: pointer; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--primary); }
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--bg-dark); color: var(--text-white); }
.section-title { font-size: 2.4rem; margin-bottom: 16px; text-align: center; letter-spacing: -0.02em; }
.section-subtitle { font-size: 1.1rem; color: var(--text-light); text-align: center; max-width: 680px; margin: 0 auto 48px; line-height: 1.7; }
.section-dark .section-title { color: var(--text-white); }
.section-dark .section-subtitle { color: rgba(249,247,244,0.7); }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; border-radius: var(--radius-sm); font-weight: 600; font-size: 1rem; transition: var(--transition); border: 2px solid transparent; letter-spacing: 0.01em; }
.btn-primary { background: var(--secondary); color: var(--primary); border-color: var(--secondary); }
.btn-primary:hover { background: var(--secondary-light); border-color: var(--secondary-light); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-gold); }
.btn-outline { background: transparent; color: var(--text-white); border-color: rgba(249,247,244,0.3); }
.btn-outline:hover { background: rgba(249,247,244,0.1); border-color: var(--text-white); color: var(--text-white); transform: translateY(-2px); }
.btn-dark { background: var(--primary); color: var(--text-white); border-color: var(--primary); }
.btn-dark:hover { background: var(--primary-light); color: var(--text-white); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-sm { padding: 10px 20px; font-size: 0.9rem; }
.badge { display: inline-block; padding: 4px 14px; border-radius: 20px; font-size: 0.8rem; font-weight: 600; background: rgba(201,168,76,0.12); color: var(--secondary-dark); letter-spacing: 0.02em; }
.badge-primary { background: var(--secondary); color: var(--primary); }
.tag { display: inline-block; padding: 6px 16px; border-radius: 6px; font-size: 0.85rem; font-weight: 500; background: var(--bg-alt); color: var(--text-light); transition: var(--transition); border: 1px solid var(--border); }
.tag:hover { background: var(--secondary); color: var(--primary); border-color: var(--secondary); }
.card { background: var(--bg); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; transition: var(--transition); border: 1px solid var(--border); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.card-body { padding: 24px; }
.card-title { font-size: 1.25rem; margin-bottom: 8px; font-weight: 700; }
.card-text { color: var(--text-light); font-size: 0.95rem; line-height: 1.7; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.divider { width: 60px; height: 3px; background: var(--secondary); border-radius: 2px; margin: 0 auto 24px; }

/* Header & Nav */
.header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(15,26,46,0.92); backdrop-filter: blur(20px); border-bottom: 1px solid rgba(249,247,244,0.06); transition: var(--transition); }
.header .container { display: flex; align-items: center; justify-content: space-between; height: var(--nav-height); }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--text-white); letter-spacing: -0.02em; display: flex; align-items: center; gap: 8px; }
.logo span { color: var(--secondary); }
.logo:hover { color: var(--text-white); opacity: 0.9; }
.nav { display: flex; align-items: center; gap: 8px; }
.nav a { color: rgba(249,247,244,0.75); padding: 8px 18px; border-radius: var(--radius-sm); font-weight: 500; font-size: 0.95rem; transition: var(--transition); position: relative; }
.nav a:hover { color: var(--text-white); background: rgba(249,247,244,0.06); }
.nav a.active { color: var(--secondary); background: rgba(201,168,76,0.1); }
.nav a.active::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 20px; height: 2px; background: var(--secondary); border-radius: 1px; }
.nav-cta { background: var(--secondary) !important; color: var(--primary) !important; padding: 10px 24px !important; border-radius: var(--radius-sm) !important; font-weight: 700 !important; }
.nav-cta:hover { background: var(--secondary-light) !important; color: var(--primary) !important; transform: translateY(-1px); }
.mobile-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; }
.mobile-toggle span { width: 24px; height: 2px; background: var(--text-white); border-radius: 2px; transition: var(--transition); }

/* Hero */
.hero { min-height: 100vh; display: flex; align-items: center; background: var(--bg-dark); position: relative; overflow: hidden; padding-top: var(--nav-height); }
.hero::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; opacity: 0.25; z-index: 0; }
.hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(15,26,46,0.92) 30%, rgba(15,26,46,0.6) 70%, rgba(15,26,46,0.3) 100%); z-index: 1; }
.hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; padding-top: 40px; padding-bottom: 40px; }
.hero-content { max-width: 600px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(201,168,76,0.15); padding: 8px 20px; border-radius: 30px; font-size: 0.85rem; color: var(--secondary); font-weight: 600; margin-bottom: 24px; border: 1px solid rgba(201,168,76,0.2); }
.hero-badge::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--secondary); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
.hero h1 { font-size: 3.6rem; font-weight: 800; color: var(--text-white); line-height: 1.15; margin-bottom: 20px; letter-spacing: -0.03em; }
.hero h1 em { color: var(--secondary); font-style: normal; }
.hero p { font-size: 1.15rem; color: rgba(249,247,244,0.7); line-height: 1.8; margin-bottom: 36px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); aspect-ratio: 4/3; background: var(--primary-light); }
.hero-visual img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.hero-visual:hover img { transform: scale(1.03); }
.hero-visual::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(15,26,46,0.3) 0%, transparent 50%); }
.hero-stat { position: absolute; bottom: 24px; left: 24px; background: rgba(15,26,46,0.85); backdrop-filter: blur(12px); border-radius: var(--radius); padding: 16px 24px; color: var(--text-white); display: flex; gap: 32px; z-index: 2; border: 1px solid rgba(249,247,244,0.08); }
.hero-stat-item { text-align: center; }
.hero-stat-item .num { font-size: 1.6rem; font-weight: 800; color: var(--secondary); }
.hero-stat-item .label { font-size: 0.8rem; opacity: 0.7; margin-top: 2px; }

/* Intro */
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.intro-image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); aspect-ratio: 4/3; }
.intro-image img { width: 100%; height: 100%; object-fit: cover; }
.intro-text h2 { font-size: 2rem; margin-bottom: 16px; }
.intro-text p { color: var(--text-light); font-size: 1.05rem; line-height: 1.8; margin-bottom: 16px; }
.intro-features { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 24px; }
.intro-feature { display: flex; align-items: center; gap: 10px; font-size: 0.95rem; color: var(--text); }
.intro-feature::before { content: '✓'; display: flex; align-items: center; justify-content: center; width: 22px; height: 22px; border-radius: 50%; background: var(--secondary); color: var(--primary); font-weight: 700; font-size: 0.75rem; flex-shrink: 0; }

/* Category */
.category-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.category-card { background: var(--bg); border-radius: var(--radius); padding: 32px 28px; text-align: center; box-shadow: var(--shadow); border: 1px solid var(--border); transition: var(--transition); }
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--secondary); }
.category-card .icon { width: 64px; height: 64px; margin: 0 auto 20px; background: rgba(201,168,76,0.1); border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 1.8rem; }
.category-card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.category-card p { color: var(--text-light); font-size: 0.9rem; line-height: 1.6; }
.category-card .tag { margin-top: 16px; }

/* News List */
.news-list { display: grid; grid-template-columns: 1fr; gap: 20px; }
.news-item { display: flex; gap: 24px; background: var(--bg); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: var(--transition); align-items: flex-start; }
.news-item:hover { transform: translateX(4px); box-shadow: var(--shadow-lg); border-color: var(--secondary); }
.news-item .thumb { width: 160px; height: 110px; border-radius: var(--radius-sm); overflow: hidden; flex-shrink: 0; background: var(--bg-alt); }
.news-item .thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-item .info { flex: 1; }
.news-item .info .meta { display: flex; gap: 12px; align-items: center; margin-bottom: 6px; font-size: 0.85rem; color: var(--text-light); }
.news-item .info .meta .badge { font-size: 0.75rem; }
.news-item .info h3 { font-size: 1.1rem; margin-bottom: 6px; }
.news-item .info h3 a { color: var(--text); }
.news-item .info h3 a:hover { color: var(--secondary); }
.news-item .info p { color: var(--text-light); font-size: 0.9rem; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-empty { text-align: center; padding: 48px 24px; color: var(--text-light); font-size: 1.05rem; background: var(--bg-alt); border-radius: var(--radius); }

/* Stats */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-card { text-align: center; padding: 36px 20px; background: rgba(249,247,244,0.05); border-radius: var(--radius); border: 1px solid rgba(249,247,244,0.08); transition: var(--transition); }
.stat-card:hover { background: rgba(249,247,244,0.08); transform: translateY(-2px); }
.stat-card .num { font-size: 2.8rem; font-weight: 800; color: var(--secondary); margin-bottom: 6px; }
.stat-card .label { font-size: 0.95rem; color: rgba(249,247,244,0.7); }

/* Process */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.process-step { text-align: center; padding: 32px 20px; position: relative; }
.process-step .step-num { width: 48px; height: 48px; margin: 0 auto 16px; background: var(--secondary); color: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.2rem; }
.process-step h4 { font-size: 1.1rem; margin-bottom: 8px; }
.process-step p { color: var(--text-light); font-size: 0.9rem; line-height: 1.6; }
.process-step::after { content: '→'; position: absolute; right: -16px; top: 40px; font-size: 1.6rem; color: var(--secondary); opacity: 0.4; }
.process-step:last-child::after { display: none; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--bg); border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: var(--secondary); }
.faq-question { padding: 20px 24px; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-weight: 600; font-size: 1.05rem; color: var(--text); background: none; width: 100%; text-align: left; }
.faq-question::after { content: '+'; font-size: 1.4rem; color: var(--secondary); transition: var(--transition); flex-shrink: 0; }
.faq-item.active .faq-question::after { content: '−'; }
.faq-answer { padding: 0 24px; max-height: 0; overflow: hidden; transition: var(--transition); color: var(--text-light); line-height: 1.7; }
.faq-item.active .faq-answer { padding: 0 24px 20px; max-height: 300px; }

/* 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-2.png') center/cover no-repeat; opacity: 0.1; }
.cta-content { position: relative; z-index: 1; text-align: center; padding: 80px 20px; }
.cta-content h2 { font-size: 2.8rem; color: var(--text-white); margin-bottom: 16px; }
.cta-content p { font-size: 1.15rem; color: rgba(249,247,244,0.6); max-width: 600px; margin: 0 auto 32px; line-height: 1.7; }
.cta-content .btn { font-size: 1.1rem; padding: 16px 40px; }

/* Footer */
.footer { background: var(--primary-dark); color: rgba(249,247,244,0.6); padding: 60px 0 30px; border-top: 1px solid rgba(249,247,244,0.04); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { font-size: 1.6rem; margin-bottom: 12px; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 300px; }
.footer h4 { color: var(--text-white); font-size: 1rem; margin-bottom: 16px; font-weight: 600; }
.footer ul li { margin-bottom: 8px; }
.footer ul li a { color: rgba(249,247,244,0.5); font-size: 0.9rem; }
.footer ul li a:hover { color: var(--secondary); }
.footer-bottom { border-top: 1px solid rgba(249,247,244,0.06); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; flex-wrap: wrap; gap: 12px; }

/* Mobile */
@media (max-width: 1024px) {
  .hero .container { grid-template-columns: 1fr; gap: 32px; text-align: center; }
  .hero-content { max-width: 100%; }
  .hero p { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-stat { left: 50%; transform: translateX(-50%); bottom: 16px; }
  .hero h1 { font-size: 2.8rem; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .process-step::after { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .intro-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav { display: none; position: fixed; top: var(--nav-height); left: 0; right: 0; background: rgba(15,26,46,0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 20px; border-bottom: 1px solid rgba(249,247,244,0.06); }
  .nav.open { display: flex; }
  .nav a { width: 100%; padding: 12px 16px; }
  .mobile-toggle { display: flex; }
  .section { padding: 60px 0; }
  .section-title { font-size: 1.8rem; }
  .hero h1 { font-size: 2.2rem; }
  .hero p { font-size: 1rem; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .news-item { flex-direction: column; }
  .news-item .thumb { width: 100%; height: 180px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-card .num { font-size: 2rem; }
  .process-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-content h2 { font-size: 2rem; }
  .hero-stat { flex-wrap: wrap; gap: 16px; padding: 12px 16px; }
}
@media (max-width: 520px) {
  .hero h1 { font-size: 1.8rem; }
  .section-title { font-size: 1.5rem; }
  .hero-stat-item .num { font-size: 1.2rem; }
  .container { padding: 0 16px; }
  .btn { padding: 12px 24px; font-size: 0.9rem; }
  .category-grid { grid-template-columns: 1fr; }
}

:root {
  --primary: #0f1a2e;
  --primary-light: #1a2d4a;
  --primary-dark: #0a111f;
  --secondary: #c9a84c;
  --secondary-light: #e0c06a;
  --secondary-dark: #a88830;
  --accent: #f7f3ee;
  --bg: #ffffff;
  --bg-alt: #f9f7f4;
  --bg-dark: #0f1a2e;
  --text: #1a2332;
  --text-light: #6b7280;
  --text-white: #f9f7f4;
  --border: #e5e1db;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(15,26,46,0.08);
  --shadow-lg: 0 12px 48px rgba(15,26,46,0.14);
  --shadow-gold: 0 4px 24px rgba(201,168,76,0.25);
  --font: 'Inter', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --max-width: 1200px;
  --nav-height: 72px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--secondary); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
button { cursor: pointer; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--primary); }
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--bg-dark); color: var(--text-white); }
.section-title { font-size: 2.4rem; margin-bottom: 16px; text-align: center; letter-spacing: -0.02em; }
.section-subtitle { font-size: 1.1rem; color: var(--text-light); text-align: center; max-width: 680px; margin: 0 auto 48px; line-height: 1.7; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; border-radius: var(--radius-sm); font-weight: 600; font-size: 1rem; transition: var(--transition); border: 2px solid transparent; letter-spacing: 0.01em; }
.btn-primary { background: var(--secondary); color: var(--primary); border-color: var(--secondary); }
.btn-primary:hover { background: var(--secondary-light); border-color: var(--secondary-light); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-gold); }
.btn-outline { background: transparent; color: var(--text); border-color: var(--border); }
.btn-outline:hover { background: var(--bg-alt); border-color: var(--secondary); color: var(--primary); transform: translateY(-2px); }
.btn-dark { background: var(--primary); color: var(--text-white); border-color: var(--primary); }
.btn-dark:hover { background: var(--primary-light); color: var(--text-white); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-sm { padding: 10px 20px; font-size: 0.9rem; }
.badge { display: inline-block; padding: 4px 14px; border-radius: 20px; font-size: 0.8rem; font-weight: 600; background: rgba(201,168,76,0.12); color: var(--secondary-dark); letter-spacing: 0.02em; }
.badge-primary { background: var(--secondary); color: var(--primary); }
.tag { display: inline-block; padding: 6px 16px; border-radius: 6px; font-size: 0.85rem; font-weight: 500; background: var(--bg-alt); color: var(--text-light); transition: var(--transition); border: 1px solid var(--border); }
.tag:hover { background: var(--secondary); color: var(--primary); border-color: var(--secondary); }
.card { background: var(--bg); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; transition: var(--transition); border: 1px solid var(--border); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card-body { padding: 24px; }
.card-title { font-size: 1.25rem; margin-bottom: 8px; font-weight: 700; }
.card-text { color: var(--text-light); font-size: 0.95rem; line-height: 1.7; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.divider { width: 60px; height: 3px; background: var(--secondary); border-radius: 2px; margin: 0 auto 24px; }

/* Header */
.header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(15,26,46,0.92); backdrop-filter: blur(20px); border-bottom: 1px solid rgba(249,247,244,0.06); transition: var(--transition); }
.header .container { display: flex; align-items: center; justify-content: space-between; height: var(--nav-height); }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--text-white); letter-spacing: -0.02em; display: flex; align-items: center; gap: 8px; }
.logo span { color: var(--secondary); }
.logo:hover { color: var(--text-white); opacity: 0.9; }
.nav { display: flex; align-items: center; gap: 8px; }
.nav a { color: rgba(249,247,244,0.75); padding: 8px 18px; border-radius: var(--radius-sm); font-weight: 500; font-size: 0.95rem; transition: var(--transition); position: relative; }
.nav a:hover { color: var(--text-white); background: rgba(249,247,244,0.06); }
.nav a.active { color: var(--secondary); background: rgba(201,168,76,0.1); }
.nav a.active::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 20px; height: 2px; background: var(--secondary); border-radius: 1px; }
.nav-cta { background: var(--secondary) !important; color: var(--primary) !important; padding: 10px 24px !important; border-radius: var(--radius-sm) !important; font-weight: 700 !important; }
.nav-cta:hover { background: var(--secondary-light) !important; color: var(--primary) !important; transform: translateY(-1px); }
.mobile-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; }
.mobile-toggle span { width: 24px; height: 2px; background: var(--text-white); border-radius: 2px; transition: var(--transition); }

/* Article Banner */
.article-banner { padding-top: calc(var(--nav-height) + 60px); padding-bottom: 40px; background: var(--bg-dark); position: relative; overflow: hidden; }
.article-banner::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-3.png') center/cover no-repeat; opacity: 0.12; }
.article-banner .container { position: relative; z-index: 1; }
.article-banner .meta { display: flex; gap: 16px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
.article-banner .meta .badge { font-size: 0.85rem; padding: 6px 18px; }
.article-banner .meta .date { color: rgba(249,247,244,0.6); font-size: 0.9rem; }
.article-banner h1 { font-size: 2.8rem; color: var(--text-white); max-width: 800px; line-height: 1.2; margin-bottom: 16px; letter-spacing: -0.02em; }
.article-banner .desc { font-size: 1.1rem; color: rgba(249,247,244,0.65); max-width: 640px; line-height: 1.7; }

/* Article Content */
.article-content { padding: 48px 0 80px; }
.article-body { max-width: 800px; margin: 0 auto; }
.article-body .content { font-size: 1.05rem; line-height: 1.9; color: var(--text); }
.article-body .content p { margin-bottom: 20px; }
.article-body .content h2, .article-body .content h3 { margin-top: 36px; margin-bottom: 16px; }
.article-body .content img { border-radius: var(--radius); margin: 24px 0; }
.article-body .content blockquote { border-left: 4px solid var(--secondary); padding: 16px 24px; background: var(--bg-alt); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 24px 0; color: var(--text-light); font-style: italic; }
.article-body .content ul, .article-body .content ol { padding-left: 24px; margin-bottom: 20px; }
.article-body .content li { margin-bottom: 8px; }
.article-notfound { text-align: center; padding: 80px 20px; }
.article-notfound h2 { font-size: 2rem; margin-bottom: 16px; }
.article-notfound p { color: var(--text-light); margin-bottom: 24px; }

/* Footer */
.footer { background: var(--primary-dark); color: rgba(249,247,244,0.6); padding: 60px 0 30px; border-top: 1px solid rgba(249,247,244,0.04); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { font-size: 1.6rem; margin-bottom: 12px; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 300px; }
.footer h4 { color: var(--text-white); font-size: 1rem; margin-bottom: 16px; font-weight: 600; }
.footer ul li { margin-bottom: 8px; }
.footer ul li a { color: rgba(249,247,244,0.5); font-size: 0.9rem; }
.footer ul li a:hover { color: var(--secondary); }
.footer-bottom { border-top: 1px solid rgba(249,247,244,0.06); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; flex-wrap: wrap; gap: 12px; }
.back-home { display: inline-flex; align-items: center; gap: 6px; color: var(--text-light); font-size: 0.95rem; }
.back-home:hover { color: var(--secondary); }

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .article-banner h1 { font-size: 2.2rem; }
}
@media (max-width: 768px) {
  .nav { display: none; position: fixed; top: var(--nav-height); left: 0; right: 0; background: rgba(15,26,46,0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 20px; border-bottom: 1px solid rgba(249,247,244,0.06); }
  .nav.open { display: flex; }
  .nav a { width: 100%; padding: 12px 16px; }
  .mobile-toggle { display: flex; }
  .section { padding: 60px 0; }
  .article-banner h1 { font-size: 1.8rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .article-banner h1 { font-size: 1.5rem; }
  .article-banner { padding-top: calc(var(--nav-height) + 32px); padding-bottom: 24px; }
}

:root {
  --primary: #0f1a2e;
  --primary-light: #1a2d4a;
  --primary-dark: #0a111f;
  --secondary: #c9a84c;
  --secondary-light: #e0c06a;
  --secondary-dark: #a88830;
  --accent: #f7f3ee;
  --bg: #ffffff;
  --bg-alt: #f9f7f4;
  --bg-dark: #0f1a2e;
  --text: #1a2332;
  --text-light: #6b7280;
  --text-white: #f9f7f4;
  --border: #e5e1db;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(15,26,46,0.08);
  --shadow-lg: 0 12px 48px rgba(15,26,46,0.14);
  --shadow-gold: 0 4px 24px rgba(201,168,76,0.25);
  --font: 'Inter', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --max-width: 1200px;
  --nav-height: 72px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--secondary); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
button { cursor: pointer; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--primary); }
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--bg-dark); color: var(--text-white); }
.section-title { font-size: 2.4rem; margin-bottom: 16px; text-align: center; letter-spacing: -0.02em; }
.section-subtitle { font-size: 1.1rem; color: var(--text-light); text-align: center; max-width: 680px; margin: 0 auto 48px; line-height: 1.7; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; border-radius: var(--radius-sm); font-weight: 600; font-size: 1rem; transition: var(--transition); border: 2px solid transparent; letter-spacing: 0.01em; }
.btn-primary { background: var(--secondary); color: var(--primary); border-color: var(--secondary); }
.btn-primary:hover { background: var(--secondary-light); border-color: var(--secondary-light); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-gold); }
.btn-outline { background: transparent; color: var(--text); border-color: var(--border); }
.btn-outline:hover { background: var(--bg-alt); border-color: var(--secondary); color: var(--primary); transform: translateY(-2px); }
.btn-dark { background: var(--primary); color: var(--text-white); border-color: var(--primary); }
.btn-dark:hover { background: var(--primary-light); color: var(--text-white); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-sm { padding: 10px 20px; font-size: 0.9rem; }
.badge { display: inline-block; padding: 4px 14px; border-radius: 20px; font-size: 0.8rem; font-weight: 600; background: rgba(201,168,76,0.12); color: var(--secondary-dark); letter-spacing: 0.02em; }
.badge-primary { background: var(--secondary); color: var(--primary); }
.tag { display: inline-block; padding: 6px 16px; border-radius: 6px; font-size: 0.85rem; font-weight: 500; background: var(--bg-alt); color: var(--text-light); transition: var(--transition); border: 1px solid var(--border); }
.tag:hover { background: var(--secondary); color: var(--primary); border-color: var(--secondary); }
.card { background: var(--bg); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; transition: var(--transition); border: 1px solid var(--border); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.card-body { padding: 24px; }
.card-title { font-size: 1.25rem; margin-bottom: 8px; font-weight: 700; }
.card-text { color: var(--text-light); font-size: 0.95rem; line-height: 1.7; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.divider { width: 60px; height: 3px; background: var(--secondary); border-radius: 2px; margin: 0 auto 24px; }

/* Header */
.header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(15,26,46,0.92); backdrop-filter: blur(20px); border-bottom: 1px solid rgba(249,247,244,0.06); transition: var(--transition); }
.header .container { display: flex; align-items: center; justify-content: space-between; height: var(--nav-height); }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--text-white); letter-spacing: -0.02em; display: flex; align-items: center; gap: 8px; }
.logo span { color: var(--secondary); }
.logo:hover { color: var(--text-white); opacity: 0.9; }
.nav { display: flex; align-items: center; gap: 8px; }
.nav a { color: rgba(249,247,244,0.75); padding: 8px 18px; border-radius: var(--radius-sm); font-weight: 500; font-size: 0.95rem; transition: var(--transition); position: relative; }
.nav a:hover { color: var(--text-white); background: rgba(249,247,244,0.06); }
.nav a.active { color: var(--secondary); background: rgba(201,168,76,0.1); }
.nav a.active::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 20px; height: 2px; background: var(--secondary); border-radius: 1px; }
.nav-cta { background: var(--secondary) !important; color: var(--primary) !important; padding: 10px 24px !important; border-radius: var(--radius-sm) !important; font-weight: 700 !important; }
.nav-cta:hover { background: var(--secondary-light) !important; color: var(--primary) !important; transform: translateY(-1px); }
.mobile-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; }
.mobile-toggle span { width: 24px; height: 2px; background: var(--text-white); border-radius: 2px; transition: var(--transition); }

/* Category Banner */
.cat-banner { padding-top: calc(var(--nav-height) + 60px); padding-bottom: 60px; background: var(--bg-dark); position: relative; overflow: hidden; text-align: center; }
.cat-banner::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat; opacity: 0.1; }
.cat-banner .container { position: relative; z-index: 1; }
.cat-banner h1 { font-size: 3rem; color: var(--text-white); margin-bottom: 16px; letter-spacing: -0.02em; }
.cat-banner p { font-size: 1.15rem; color: rgba(249,247,244,0.6); max-width: 640px; margin: 0 auto; line-height: 1.7; }
.cat-banner .badge { margin-bottom: 16px; font-size: 0.9rem; padding: 8px 24px; }

/* Category Content */
.cat-content { padding: 60px 0 80px; }
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 28px; }
.cat-card { background: var(--bg); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; transition: var(--transition); border: 1px solid var(--border); display: flex; flex-direction: column; }
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--secondary); }
.cat-card .thumb { width: 100%; aspect-ratio: 16/9; overflow: hidden; background: var(--bg-alt); }
.cat-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.cat-card:hover .thumb img { transform: scale(1.05); }
.cat-card .body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.cat-card .body .meta { display: flex; gap: 12px; align-items: center; margin-bottom: 8px; font-size: 0.85rem; color: var(--text-light); }
.cat-card .body h3 { font-size: 1.2rem; margin-bottom: 8px; }
.cat-card .body h3 a { color: var(--text); }
.cat-card .body h3 a:hover { color: var(--secondary); }
.cat-card .body p { color: var(--text-light); font-size: 0.9rem; line-height: 1.6; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.cat-card .body .footer-meta { margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; color: var(--text-light); }
.cat-empty { text-align: center; padding: 80px 20px; color: var(--text-light); font-size: 1.05rem; background: var(--bg-alt); border-radius: var(--radius); grid-column: 1 / -1; }

/* Featured */
.featured-section { background: var(--bg-alt); }
.featured-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; }
.featured-image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); aspect-ratio: 4/3; }
.featured-image img { width: 100%; height: 100%; object-fit: cover; }
.featured-text h2 { font-size: 2rem; margin-bottom: 16px; }
.featured-text p { color: var(--text-light); font-size: 1.05rem; line-height: 1.8; margin-bottom: 16px; }
.featured-text ul { margin-top: 16px; }
.featured-text ul li { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; font-size: 0.95rem; }
.featured-text ul li::before { content: '▸'; color: var(--secondary); font-weight: 700; }

/* Footer */
.footer { background: var(--primary-dark); color: rgba(249,247,244,0.6); padding: 60px 0 30px; border-top: 1px solid rgba(249,247,244,0.04); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { font-size: 1.6rem; margin-bottom: 12px; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 300px; }
.footer h4 { color: var(--text-white); font-size: 1rem; margin-bottom: 16px; font-weight: 600; }
.footer ul li { margin-bottom: 8px; }
.footer ul li a { color: rgba(249,247,244,0.5); font-size: 0.9rem; }
.footer ul li a:hover { color: var(--secondary); }
.footer-bottom { border-top: 1px solid rgba(249,247,244,0.06); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; flex-wrap: wrap; gap: 12px; }

@media (max-width: 1024px) {
  .cat-banner h1 { font-size: 2.4rem; }
  .featured-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav { display: none; position: fixed; top: var(--nav-height); left: 0; right: 0; background: rgba(15,26,46,0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 20px; border-bottom: 1px solid rgba(249,247,244,0.06); }
  .nav.open { display: flex; }
  .nav a { width: 100%; padding: 12px 16px; }
  .mobile-toggle { display: flex; }
  .section { padding: 60px 0; }
  .cat-banner h1 { font-size: 2rem; }
  .cat-banner { padding-top: calc(var(--nav-height) + 40px); padding-bottom: 40px; }
  .cat-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .cat-banner h1 { font-size: 1.6rem; }
  .section-title { font-size: 1.5rem; }
  .cat-grid { grid-template-columns: 1fr; }
}

/* roulang page: article */
:root {
  --primary: #e63946;
  --primary-dark: #c1121f;
  --primary-light: #ff6b6b;
  --secondary: #1d3557;
  --secondary-light: #457b9d;
  --accent: #f4a261;
  --bg: #f8f9fa;
  --bg-card: #ffffff;
  --bg-dark: #1a1a2e;
  --bg-section: #f1f3f5;
  --text: #212529;
  --text-light: #6c757d;
  --text-white: #ffffff;
  --border: #dee2e6;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.10);
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --container: 1200px;
  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
ul { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-title { font-size: 2rem; font-weight: 700; margin-bottom: 12px; color: var(--text); letter-spacing: -0.02em; }
.section-sub { font-size: 1.05rem; color: var(--text-light); max-width: 640px; margin-bottom: 48px; line-height: 1.6; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ===== Header & Nav ===== */
.header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  height: var(--header-h);
}
.header .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%;
}
.logo { font-size: 1.5rem; font-weight: 800; color: var(--secondary); letter-spacing: -0.03em; }
.logo span { color: var(--primary); }
.logo:hover { color: var(--secondary); opacity: 0.9; }
.nav { display: flex; align-items: center; gap: 8px; }
.nav a {
  padding: 8px 18px; border-radius: var(--radius-sm);
  font-size: 0.95rem; font-weight: 500; color: var(--text-light);
  transition: var(--transition); position: relative;
}
.nav a:hover { color: var(--primary); background: rgba(230,57,70,0.06); }
.nav a.active { color: var(--primary); background: rgba(230,57,70,0.10); font-weight: 600; }
.nav a.nav-cta {
  background: var(--primary); color: #fff; border-radius: 50px;
  padding: 8px 24px; font-weight: 600; box-shadow: 0 4px 12px rgba(230,57,70,0.25);
}
.nav a.nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(230,57,70,0.35); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; }
.nav-toggle span { width: 26px; height: 2.5px; background: var(--secondary); border-radius: 4px; transition: var(--transition); }

/* ===== Hero Banner (inner) ===== */
.hero-inner {
  position: relative;
  height: 320px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--secondary) 0%, #0f1a2e 100%);
  overflow: hidden;
}
.hero-inner::before {
  content: '';
  position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity: 0.25;
  animation: heroParallax 30s ease infinite alternate;
}
@keyframes heroParallax {
  0% { transform: scale(1) translate(0,0); }
  100% { transform: scale(1.08) translate(-10px,-10px); }
}
.hero-inner .hero-content { position: relative; z-index: 2; text-align: center; color: #fff; padding: 0 24px; }
.hero-inner .hero-content h1 { font-size: 2.6rem; font-weight: 800; letter-spacing: -0.03em; margin-bottom: 12px; text-shadow: 0 2px 20px rgba(0,0,0,0.3); }
.hero-inner .hero-content p { font-size: 1.1rem; opacity: 0.85; max-width: 600px; margin: 0 auto; line-height: 1.6; }
.hero-breadcrumb { display: flex; justify-content: center; gap: 8px; font-size: 0.9rem; margin-top: 16px; }
.hero-breadcrumb a { color: rgba(255,255,255,0.7); }
.hero-breadcrumb a:hover { color: #fff; }
.hero-breadcrumb span { color: rgba(255,255,255,0.5); }

/* ===== Article Main ===== */
.article-main { padding: 60px 0 80px; }
.article-layout {
  display: grid; grid-template-columns: 1fr 320px; gap: 48px;
}
.article-body { background: var(--bg-card); border-radius: var(--radius); padding: 40px 48px; box-shadow: var(--shadow); }
.article-header { margin-bottom: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.article-header .article-category {
  display: inline-block; padding: 4px 16px; border-radius: 50px;
  background: rgba(230,57,70,0.08); color: var(--primary);
  font-size: 0.85rem; font-weight: 600; margin-bottom: 16px;
}
.article-header h1 { font-size: 2rem; font-weight: 800; line-height: 1.3; color: var(--secondary); margin-bottom: 16px; letter-spacing: -0.02em; }
.article-meta { display: flex; flex-wrap: wrap; gap: 20px; font-size: 0.9rem; color: var(--text-light); }
.article-meta span { display: flex; align-items: center; gap: 6px; }
.article-meta i { opacity: 0.6; }
.article-cover { margin-bottom: 32px; border-radius: var(--radius-sm); overflow: hidden; }
.article-cover img { width: 100%; height: auto; object-fit: cover; }
.article-content { font-size: 1.05rem; line-height: 1.9; color: var(--text); }
.article-content p { margin-bottom: 1.4em; }
.article-content h2 { font-size: 1.5rem; font-weight: 700; margin: 2em 0 0.8em; color: var(--secondary); }
.article-content h3 { font-size: 1.2rem; font-weight: 600; margin: 1.8em 0 0.6em; color: var(--secondary); }
.article-content ul, .article-content ol { margin: 1em 0 1.4em 1.6em; }
.article-content li { margin-bottom: 0.5em; }
.article-content img { border-radius: var(--radius-sm); margin: 1.5em 0; }
.article-content blockquote {
  border-left: 4px solid var(--primary); padding: 16px 24px; margin: 1.5em 0;
  background: rgba(230,57,70,0.04); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic; color: var(--text-light);
}
.article-content a { text-decoration: underline; text-underline-offset: 3px; }
.article-tags { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border); display: flex; flex-wrap: wrap; gap: 10px; }
.article-tags .tag {
  padding: 6px 18px; border-radius: 50px; background: var(--bg-section);
  font-size: 0.85rem; color: var(--text-light); font-weight: 500;
  transition: var(--transition);
}
.article-tags .tag:hover { background: var(--primary); color: #fff; }
.article-nav { display: flex; justify-content: space-between; margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border); }
.article-nav a { font-size: 0.95rem; font-weight: 500; color: var(--secondary); display: flex; align-items: center; gap: 8px; }
.article-nav a:hover { color: var(--primary); }

/* ===== Sidebar ===== */
.article-sidebar { display: flex; flex-direction: column; gap: 32px; }
.sidebar-card { background: var(--bg-card); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.sidebar-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--secondary); margin-bottom: 20px; padding-bottom: 12px; border-bottom: 2px solid var(--primary); }
.sidebar-list li { padding: 10px 0; border-bottom: 1px solid var(--border); }
.sidebar-list li:last-child { border-bottom: none; }
.sidebar-list a { display: block; font-size: 0.95rem; color: var(--text); line-height: 1.4; }
.sidebar-list a:hover { color: var(--primary); padding-left: 4px; }
.sidebar-list .list-date { font-size: 0.8rem; color: var(--text-light); margin-top: 4px; }
.sidebar-cta { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; text-align: center; }
.sidebar-cta h3 { color: #fff; border-bottom-color: rgba(255,255,255,0.2); }
.sidebar-cta p { font-size: 0.95rem; opacity: 0.9; margin-bottom: 20px; }
.sidebar-cta .btn { background: #fff; color: var(--primary); }
.sidebar-cta .btn:hover { background: rgba(255,255,255,0.9); transform: translateY(-2px); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 32px; border-radius: 50px; font-weight: 600;
  font-size: 0.95rem; border: none; cursor: pointer;
  transition: var(--transition); text-decoration: none;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(230,57,70,0.25); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(230,57,70,0.35); color: #fff; }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }

/* ===== Footer ===== */
.footer { background: var(--secondary); color: rgba(255,255,255,0.8); padding: 60px 0 0; }
.footer .logo { color: #fff; font-size: 1.4rem; }
.footer .logo span { color: var(--primary-light); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
.footer-brand p { margin-top: 16px; font-size: 0.95rem; opacity: 0.7; line-height: 1.7; max-width: 360px; }
.footer h4 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 20px; }
.footer ul li { margin-bottom: 12px; }
.footer ul a { color: rgba(255,255,255,0.65); font-size: 0.9rem; transition: var(--transition); }
.footer ul a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 24px 0; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 0.85rem; opacity: 0.6; }

/* ===== 404 State ===== */
.not-found { text-align: center; padding: 80px 24px; }
.not-found h2 { font-size: 2.4rem; color: var(--secondary); margin-bottom: 16px; }
.not-found p { color: var(--text-light); margin-bottom: 24px; font-size: 1.1rem; }
.not-found .btn { margin-top: 8px; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav { display: none; position: absolute; top: var(--header-h); left: 0; right: 0; background: rgba(255,255,255,0.98); flex-direction: column; padding: 16px 24px; box-shadow: 0 20px 40px rgba(0,0,0,0.08); border-radius: 0 0 var(--radius) var(--radius); }
  .nav.open { display: flex; }
  .nav a { width: 100%; padding: 12px 16px; }
  .nav-toggle { display: flex; }
  .hero-inner { height: 240px; }
  .hero-inner .hero-content h1 { font-size: 1.8rem; }
  .hero-inner .hero-content p { font-size: 0.95rem; }
  .article-body { padding: 24px 20px; }
  .article-header h1 { font-size: 1.5rem; }
  .article-content { font-size: 0.98rem; }
  .section { padding: 48px 0; }
  .section-title { font-size: 1.5rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
}
@media (max-width: 520px) {
  .header .container { padding: 0 16px; }
  .hero-inner { height: 200px; }
  .hero-inner .hero-content h1 { font-size: 1.4rem; }
  .article-body { padding: 16px 14px; }
  .article-header h1 { font-size: 1.2rem; }
  .article-meta { gap: 12px; font-size: 0.82rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .container { padding: 0 16px; }
}

/* ===== Fade In ===== */
.fade-in { opacity: 0; transform: translateY(24px); animation: fadeUp 0.7s ease forwards; }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e74c3c;
            --primary-dark: #c0392b;
            --primary-light: #f1948a;
            --secondary: #2c3e50;
            --secondary-light: #34495e;
            --accent: #f39c12;
            --accent-light: #f1c40f;
            --bg-dark: #0a0e17;
            --bg-card: #111827;
            --bg-section: #0f1623;
            --bg-light: #1a2332;
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.15);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.6);
            --shadow-glow: 0 0 30px rgba(231, 76, 60, 0.15);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition: 0.3s 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);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        a { color: var(--text-primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
        button { cursor: pointer; background: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.25; letter-spacing: -0.01em; }
        h1 { font-size: clamp(2.4rem, 6vw, 4.2rem); }
        h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
        h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
        h4 { font-size: 1.1rem; }
        p { color: var(--text-secondary); margin-bottom: 0.5rem; }
        ::selection { background: var(--primary); color: #fff; }

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

        /* ===== 导航 (分屏联动风格) ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 14, 23, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            height: var(--nav-height);
            transition: var(--transition);
        }
        .header.scrolled {
            background: rgba(10, 14, 23, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .logo span { color: var(--primary); }
        .logo i { color: var(--primary); margin-right: 6px; font-size: 1.3rem; }
        .logo:hover { color: var(--text-primary); }
        .nav { display: flex; align-items: center; gap: 8px; }
        .nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav a:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); }
        .nav a.active {
            color: var(--text-primary);
            background: rgba(231, 76, 60, 0.12);
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav a.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
        }
        .nav a.nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(231, 76, 60, 0.3);
        }
        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }

        /* ===== 移动端导航 ===== */
        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(10, 14, 23, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav a { width: 100%; padding: 12px 16px; font-size: 1rem; }
            .nav a.nav-cta { text-align: center; }
            .nav a.active::after { display: none; }
        }

        /* ===== Hero / 首屏 ===== */
        .hero {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            padding-top: var(--nav-height);
            overflow: hidden;
            background: var(--bg-dark);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
            transform: scale(1.05);
            filter: saturate(0.8);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10,14,23,0.92) 30%, rgba(10,14,23,0.4) 70%, rgba(10,14,23,0.2) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            padding-top: 40px;
            padding-bottom: 60px;
        }
        .hero-content { max-width: 600px; }
        .hero-content .tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(231, 76, 60, 0.12);
            border: 1px solid rgba(231, 76, 60, 0.2);
            padding: 6px 16px;
            border-radius: 100px;
            font-size: 0.82rem;
            color: var(--primary-light);
            font-weight: 500;
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }
        .hero-content .tagline i { font-size: 0.75rem; }
        .hero-content h1 {
            margin-bottom: 20px;
            background: linear-gradient(135deg, #f1f5f9 40%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-content p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 500px;
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(231, 76, 60, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(231, 76, 60, 0.35);
            color: #fff;
        }
        .btn-secondary {
            background: rgba(255,255,255,0.06);
            color: var(--text-primary);
            border: 1px solid var(--border-light);
        }
        .btn-secondary:hover {
            background: rgba(255,255,255,0.12);
            transform: translateY(-2px);
            color: var(--text-primary);
        }
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }
        .hero-visual img {
            width: 100%;
            max-width: 520px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            transform: perspective(800px) rotateY(-4deg) rotateX(2deg);
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }
        .hero-visual img:hover {
            transform: perspective(800px) rotateY(0deg) rotateX(0deg);
        }
        .hero-badge {
            position: absolute;
            bottom: -12px;
            left: -12px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 12px 20px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            gap: 12px;
            box-shadow: var(--shadow-md);
            backdrop-filter: blur(10px);
        }
        .hero-badge i { color: var(--accent); font-size: 1.4rem; }
        .hero-badge span { font-weight: 700; font-size: 1.1rem; color: var(--text-primary); }
        .hero-badge small { font-size: 0.75rem; color: var(--text-muted); display: block; }

        @media (max-width: 1024px) {
            .hero .container { grid-template-columns: 1fr; gap: 40px; text-align: center; }
            .hero-content { max-width: 100%; }
            .hero-content p { margin: 0 auto 32px; }
            .hero-actions { justify-content: center; }
            .hero-visual img { transform: none; max-width: 100%; }
            .hero-badge { left: 50%; transform: translateX(-50%); bottom: -20px; }
        }
        @media (max-width: 520px) {
            .hero { min-height: 60vh; }
            .hero-content .tagline { font-size: 0.75rem; }
            .hero-actions { flex-direction: column; align-items: center; }
            .btn { width: 100%; justify-content: center; }
            .hero-badge { padding: 10px 14px; font-size: 0.85rem; }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
            position: relative;
        }
        .section-alt { background: var(--bg-section); }
        .section-dark { background: var(--bg-dark); }
        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }
        .section-header h2 { margin-bottom: 16px; }
        .section-header p { font-size: 1.08rem; color: var(--text-muted); }
        .section-header .sub {
            display: inline-block;
            font-size: 0.82rem;
            color: var(--primary);
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 12px;
            background: rgba(231, 76, 60, 0.08);
            padding: 4px 14px;
            border-radius: 100px;
        }

        /* ===== 分类入口卡片 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .category-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--primary);
            opacity: 0;
            transition: var(--transition);
        }
        .category-card:hover::before { opacity: 1; }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md), var(--shadow-glow);
            border-color: rgba(231, 76, 60, 0.2);
        }
        .category-card .icon {
            width: 60px;
            height: 60px;
            background: rgba(231, 76, 60, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .category-card:hover .icon { background: var(--primary); color: #fff; }
        .category-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
        .category-card p { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 16px; }
        .category-card .tag {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(255,255,255,0.05);
            border-radius: 100px;
            font-size: 0.75rem;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
        }

        @media (max-width: 1024px) { .category-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 520px) { .category-grid { grid-template-columns: 1fr; } }

        /* ===== 赛事推荐卡片 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md), var(--shadow-glow);
            border-color: rgba(231, 76, 60, 0.15);
        }
        .card-image {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
        .card-body .card-tag {
            display: inline-block;
            padding: 3px 12px;
            background: rgba(231, 76, 60, 0.1);
            color: var(--primary-light);
            border-radius: 100px;
            font-size: 0.72rem;
            font-weight: 600;
            margin-bottom: 12px;
            align-self: flex-start;
            border: 1px solid rgba(231, 76, 60, 0.15);
        }
        .card-body h3 { font-size: 1.1rem; margin-bottom: 10px; }
        .card-body p { font-size: 0.88rem; color: var(--text-muted); flex: 1; }
        .card-body .card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 18px;
            padding-top: 14px;
            border-top: 1px solid var(--border-color);
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .card-body .card-footer i { margin-right: 4px; }
        .card-body .card-footer a { color: var(--primary); font-weight: 500; }
        .card-body .card-footer a:hover { color: var(--primary-light); }

        @media (max-width: 1024px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 520px) { .card-grid { grid-template-columns: 1fr; } }

        /* ===== 数据/统计板块 ===== */
        .stats-grid {
            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-md);
            padding: 32px 20px;
            text-align: center;
            transition: var(--transition);
        }
        .stat-card:hover {
            border-color: rgba(231, 76, 60, 0.2);
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
        }
        .stat-card .num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-card .num span { font-size: 1.4rem; font-weight: 600; color: var(--text-muted); }
        .stat-card .label { font-size: 0.9rem; color: var(--text-secondary); }
        .stat-card i { font-size: 1.8rem; color: var(--primary); margin-bottom: 12px; opacity: 0.6; }

        @media (max-width: 1024px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 520px) { .stats-grid { grid-template-columns: 1fr; } }

        /* ===== 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: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            position: relative;
            transition: var(--transition);
        }
        .step-card:hover {
            transform: translateY(-4px);
            border-color: rgba(231, 76, 60, 0.15);
            box-shadow: var(--shadow-sm);
        }
        .step-card .step-num {
            font-size: 2.8rem;
            font-weight: 800;
            color: rgba(231, 76, 60, 0.15);
            line-height: 1;
            margin-bottom: 12px;
        }
        .step-card h4 { font-size: 1.05rem; margin-bottom: 8px; }
        .step-card p { font-size: 0.85rem; color: var(--text-muted); }

        @media (max-width: 1024px) { .steps-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 520px) { .steps-grid { grid-template-columns: 1fr; } }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(231, 76, 60, 0.12); }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            background: none;
            text-align: left;
            gap: 16px;
        }
        .faq-question i { color: var(--primary); transition: var(--transition); font-size: 0.9rem; }
        .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;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.7; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--secondary));
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container { position: relative; z-index: 1; }
        .cta-section h2 { color: #fff; font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.7); font-size: 1.05rem; max-width: 560px; margin: 0 auto 28px; }
        .cta-section .btn-primary { background: #fff; color: var(--primary-dark); box-shadow: 0 4px 30px rgba(0,0,0,0.2); }
        .cta-section .btn-primary:hover { background: var(--accent-light); color: var(--secondary); transform: translateY(-2px); }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { font-size: 1.4rem; margin-bottom: 16px; display: inline-block; }
        .footer-brand p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; max-width: 360px; }
        .footer h4 { font-size: 0.92rem; color: var(--text-primary); margin-bottom: 16px; font-weight: 600; }
        .footer ul li { margin-bottom: 10px; }
        .footer ul li a { font-size: 0.85rem; color: var(--text-muted); transition: var(--transition); }
        .footer ul li a:hover { color: var(--primary); padding-left: 4px; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        @media (max-width: 1024px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; gap: 6px; text-align: center; }
        }

        /* ===== 面包屑 ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 16px 0;
            flex-wrap: wrap;
        }
        .breadcrumb a { color: var(--text-muted); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb .sep { color: var(--text-muted); opacity: 0.4; }
        .breadcrumb .current { color: var(--text-primary); font-weight: 500; }

        /* ===== 滚动动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 768px) {
            .section { padding: 56px 0; }
            .section-header { margin-bottom: 36px; }
            .cta-section { padding: 40px 24px; }
        }