/* roulang page: index */
:root {
  --primary: #221047;
  --primary-dark: #1A0B2E;
  --gold: #F0B860;
  --gold-light: #F8CD8A;
  --purple: #A78BFA;
  --teal: #5EEAD4;
  --bg: #0B0614;
  --panel: #1F1435;
  --text: #F2EEFA;
  --text-secondary: #B0A6C8;
  --border: rgba(240, 184, 96, .2);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 32px rgba(0, 0, 0, .35);
  --shadow-gold: 0 0 24px rgba(240, 184, 96, .25);
  --ease: cubic-bezier(.25, .46, .45, .94);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.gold-text { color: var(--gold); }
.section { padding: 96px 0; }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 44px; flex-wrap: wrap; gap: 16px; }
.section-tag { display: inline-flex; align-items: center; gap: 8px; color: var(--gold); font-size: 13px; letter-spacing: 2px; text-transform: uppercase; font-weight: 500; margin-bottom: 10px; }
.section-tag::before { content: "✦"; font-size: 14px; }
.section-title { font-size: clamp(28px, 3vw, 36px); font-weight: 900; line-height: 1.3; letter-spacing: .5px; }
.section-sub { color: var(--text-secondary); font-size: 15px; margin-top: 10px; max-width: 560px; }
.section-more { color: var(--gold); font-size: 14px; font-weight: 500; display: inline-flex; align-items: center; gap: 6px; transition: gap .3s var(--ease); }
.section-more:hover { gap: 12px; color: var(--gold-light); }

/* Buttons */
.btn-gold, .btn-outline, .btn-gold-lg, .btn-outline-lg {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 600; transition: all .3s var(--ease); border: none; line-height: 1;
}
.btn-gold {
  background: var(--gold); color: var(--primary-dark); padding: 12px 24px; border-radius: var(--radius-sm);
  font-size: 14px; box-shadow: 0 4px 18px rgba(240, 184, 96, .3);
}
.btn-gold:hover { background: var(--gold-light); transform: translateY(-2px); box-shadow: 0 6px 28px rgba(240, 184, 96, .4); }
.btn-gold:active { transform: translateY(0); }
.btn-outline {
  background: transparent; color: var(--gold); padding: 12px 24px; border-radius: var(--radius-sm);
  font-size: 14px; border: 1px solid var(--gold);
}
.btn-outline:hover { background: rgba(240, 184, 96, .1); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn-gold-lg {
  background: var(--gold); color: var(--primary-dark); padding: 16px 36px; border-radius: var(--radius-pill);
  font-size: 16px; font-weight: 700; box-shadow: 0 6px 30px rgba(240, 184, 96, .35);
}
.btn-gold-lg:hover { background: var(--gold-light); transform: translateY(-3px); box-shadow: 0 10px 40px rgba(240, 184, 96, .45); }
.btn-gold-lg:active { transform: translateY(-1px); }
.btn-outline-lg {
  background: transparent; color: var(--gold); padding: 16px 36px; border-radius: var(--radius-pill);
  font-size: 16px; font-weight: 600; border: 1px solid var(--gold);
}
.btn-outline-lg:hover { background: rgba(240, 184, 96, .1); transform: translateY(-3px); }
.btn-outline-lg:active { transform: translateY(-1px); }

/* Header */
#site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(11, 6, 20, .85);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  transition: background .4s ease;
}
.nav-container {
  max-width: 1280px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; height: 76px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; }
.logo-icon {
  width: 38px; height: 38px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(240, 184, 96, .2), rgba(240, 184, 96, .05));
  border: 1px solid rgba(240, 184, 96, .4); border-radius: 10px;
  color: var(--gold); font-size: 18px; flex-shrink: 0;
}
.logo-text { font-size: 20px; font-weight: 800; letter-spacing: 1px; color: var(--text); white-space: nowrap; }
.logo-text .logo-gold { color: var(--gold); }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav-link {
  position: relative; padding: 10px 16px; color: var(--text-secondary); font-size: 15px; font-weight: 500;
  border-radius: 8px; transition: color .3s ease; white-space: nowrap;
}
.nav-link::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 4px; height: 2px;
  background: var(--gold); border-radius: 2px; transform: scaleX(0); transform-origin: center;
  transition: transform .3s var(--ease);
}
.nav-link:hover { color: var(--gold); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--gold); }
.nav-link.active::after { transform: scaleX(1); }
.nav-cta { margin-left: 12px; padding: 10px 22px; font-size: 14px; border-radius: var(--radius-pill); white-space: nowrap; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: 10px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: all .3s ease; }
.mobile-menu {
  display: none; position: fixed; top: 76px; left: 0; right: 0; z-index: 999;
  background: var(--primary-dark); border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px; flex-direction: column; gap: 6px;
}
.mobile-menu.open { display: flex; }
.mobile-link {
  padding: 14px 16px; color: var(--text-secondary); font-size: 16px; font-weight: 500;
  border-radius: 10px; transition: all .3s ease;
}
.mobile-link:hover { background: rgba(240, 184, 96, .1); color: var(--gold); }
.mobile-link.active { color: var(--gold); background: rgba(240, 184, 96, .08); }
.mobile-cta { margin-top: 12px; width: 100%; }

/* Hero */
.hero {
  position: relative; min-height: 88vh; display: flex; align-items: center;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover; background-position: center 30%;
  padding: 140px 0 80px; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(11, 6, 20, .92) 0%, rgba(11, 6, 20, .68) 50%, rgba(11, 6, 20, .35) 100%);
}
.hero::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 160px;
  background: linear-gradient(to bottom, transparent, var(--bg));
}
.hero-content { position: relative; z-index: 2; max-width: 720px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--gold); font-size: 14px; font-weight: 500; letter-spacing: 2px;
  padding: 8px 20px; border: 1px solid var(--border); border-radius: var(--radius-pill);
  background: rgba(240, 184, 96, .08); margin-bottom: 28px;
}
.hero-tag::before { content: "✦"; }
.hero h1 {
  font-size: clamp(32px, 5vw, 56px); font-weight: 900; line-height: 1.25;
  margin-bottom: 24px; letter-spacing: 1px;
}
.hero-subtitle {
  font-size: 17px; color: var(--text-secondary); max-width: 540px; line-height: 1.8;
  margin-bottom: 40px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%); z-index: 3;
  color: var(--gold); font-size: 24px; animation: bounceDown 2s infinite; opacity: .8;
}
@keyframes bounceDown {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: .6; }
  50% { transform: translateX(-50%) translateY(10px); opacity: 1; }
}

/* Shelf / horizontal scroll */
.shelf-section { background: var(--bg); }
.shelf-track {
  display: flex; gap: 24px; overflow-x: auto; padding: 12px 0 28px; scroll-snap-type: x mandatory;
  scrollbar-width: thin; scrollbar-color: rgba(240, 184, 96, .3) transparent;
}
.shelf-track::-webkit-scrollbar { height: 6px; }
.shelf-track::-webkit-scrollbar-thumb { background: rgba(240, 184, 96, .3); border-radius: 10px; }
.shelf-card {
  min-width: 240px; max-width: 320px; flex: 0 0 auto; scroll-snap-align: start;
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.shelf-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-gold); }
.shelf-cover { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.shelf-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.shelf-card:hover .shelf-cover img { transform: scale(1.05); }
.shelf-tag {
  position: absolute; top: 12px; left: 12px; padding: 4px 12px; border-radius: var(--radius-pill);
  font-size: 12px; font-weight: 500; color: var(--primary-dark);
}
.shelf-tag.teal { background: var(--teal); }
.shelf-tag.purple { background: var(--purple); }
.shelf-body { padding: 18px 20px 20px; }
.shelf-body h3 { font-size: 17px; font-weight: 700; line-height: 1.5; margin-bottom: 8px; }
.shelf-body p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.shelf-nav { display: flex; gap: 10px; }
.shelf-nav-btn {
  width: 42px; height: 42px; display: flex; align-items: center; justify-content: center;
  background: transparent; border: 1px solid var(--border); border-radius: 50%;
  color: var(--gold); font-size: 18px; transition: all .3s ease;
}
.shelf-nav-btn:hover { background: rgba(240, 184, 96, .12); border-color: var(--gold); }

/* Hot cards */
.hot-section { background: linear-gradient(180deg, var(--bg) 0%, #12091F 100%); }
.hot-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.hot-card {
  position: relative; background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.hot-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-gold); }
.hot-cover { position: relative; aspect-ratio: 16/10; overflow: hidden; }
.hot-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.hot-card:hover .hot-cover img { transform: scale(1.05); }
.hot-badge {
  position: absolute; top: 12px; right: 12px; z-index: 2;
  background: var(--primary-dark); color: var(--gold); font-size: 12px; font-weight: 800;
  padding: 6px 12px; border-radius: var(--radius-pill); border: 1px solid rgba(240, 184, 96, .5);
  letter-spacing: 1px; box-shadow: 0 2px 12px rgba(0, 0, 0, .4);
}
.hot-body { padding: 20px 22px 22px; }
.hot-body h3 { font-size: 18px; font-weight: 700; line-height: 1.5; margin-bottom: 8px; }
.hot-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.hot-link { color: var(--gold); font-size: 14px; font-weight: 500; display: inline-flex; align-items: center; gap: 6px; transition: gap .3s ease; }
.hot-link:hover { gap: 10px; }

/* Playlist section 1 — 3 col */
.playlist-one { background: var(--bg); }
.playlist-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.playlist-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.playlist-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-gold); }
.playlist-cover { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.playlist-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.playlist-card:hover .playlist-cover img { transform: scale(1.04); }
.playlist-cover::after {
  content: "▶"; position: absolute; bottom: 12px; right: 12px;
  width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
  background: rgba(11, 6, 20, .7); border: 1px solid var(--border); border-radius: 50%;
  color: var(--gold); font-size: 14px; backdrop-filter: blur(4px);
}
.playlist-body { padding: 20px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.playlist-body .playlist-meta { font-size: 12px; color: var(--text-secondary); margin-bottom: 10px; display: flex; gap: 8px; align-items: center; }
.playlist-body .playlist-meta .dot { width: 3px; height: 3px; background: var(--text-secondary); border-radius: 50%; }
.playlist-body h3 { font-size: 17px; font-weight: 700; line-height: 1.5; margin-bottom: 10px; }
.playlist-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; flex: 1; }
.playlist-body .playlist-link { margin-top: 16px; color: var(--gold); font-size: 14px; font-weight: 500; }

/* Playlist section 2 — 2 col large */
.playlist-two { background: linear-gradient(180deg, var(--bg) 0%, #140B22 100%); }
.playlist-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.guide-card {
  position: relative; background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden; display: flex; flex-direction: column;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.guide-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-gold); }
.guide-cover { aspect-ratio: 21/9; overflow: hidden; }
.guide-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.guide-card:hover .guide-cover img { transform: scale(1.05); }
.guide-body { padding: 28px 30px 30px; flex: 1; display: flex; flex-direction: column; }
.guide-body h3 { font-size: 22px; font-weight: 800; line-height: 1.4; margin-bottom: 12px; }
.guide-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; flex: 1; margin-bottom: 20px; }
.guide-steps { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
.guide-step {
  font-size: 12px; padding: 5px 12px; border-radius: var(--radius-pill);
  background: rgba(167, 139, 250, .12); color: var(--purple); border: 1px solid rgba(167, 139, 250, .25);
}
.guide-step.teal { background: rgba(94, 234, 212, .1); color: var(--teal); border-color: rgba(94, 234, 212, .25); }

/* CTA Banner */
.cta-banner {
  position: relative; padding: 100px 0; text-align: center; overflow: hidden;
  background: radial-gradient(circle at 70% 30%, rgba(167, 139, 250, .25) 0%, transparent 60%),
              radial-gradient(circle at 20% 70%, rgba(240, 184, 96, .12) 0%, transparent 50%),
              linear-gradient(135deg, var(--primary-dark) 0%, #2D1150 100%);
}
.cta-banner::before, .cta-banner::after {
  content: "✦"; position: absolute; font-size: 60px; opacity: .12; color: var(--gold);
}
.cta-banner::before { top: 30px; left: 60px; }
.cta-banner::after { bottom: 40px; right: 80px; font-size: 80px; }
.cta-banner h2 { font-size: clamp(28px, 4vw, 40px); font-weight: 900; margin-bottom: 16px; letter-spacing: 1px; }
.cta-banner p { color: var(--text-secondary); font-size: 16px; max-width: 560px; margin: 0 auto 36px; line-height: 1.8; }
.cta-banner .btn-gold-lg { position: relative; z-index: 2; }

/* News / CMS */
.news-section { background: var(--bg); }
.news-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.news-card {
  display: flex; gap: 20px; background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px; transition: all .4s var(--ease);
}
.news-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-gold); border-color: rgba(240, 184, 96, .35); }
.news-thumb { flex: 0 0 180px; aspect-ratio: 16/10; border-radius: 10px; overflow: hidden; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.news-card:hover .news-thumb img { transform: scale(1.05); }
.news-body { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.news-category {
  align-self: flex-start; font-size: 12px; font-weight: 600; padding: 4px 12px;
  border-radius: var(--radius-pill); background: rgba(240, 184, 96, .1); color: var(--gold);
  border: 1px solid rgba(240, 184, 96, .25); margin-bottom: 10px;
}
.news-body h3 { font-size: 16px; font-weight: 700; line-height: 1.5; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-body p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; flex: 1; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; }
.news-meta { display: flex; justify-content: space-between; align-items: center; }
.news-time { font-size: 12px; color: var(--text-secondary); }
.news-more { font-size: 13px; color: var(--gold); font-weight: 500; }
.empty-state {
  grid-column: 1 / -1; text-align: center; padding: 80px 20px; background: var(--panel);
  border: 1px dashed var(--border); border-radius: var(--radius-lg);
}
.empty-icon { font-size: 40px; color: var(--gold); display: block; margin-bottom: 16px; opacity: .7; }
.empty-main { font-size: 18px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.empty-sub { font-size: 14px; color: var(--text-secondary); }

/* FAQ */
.faq-section { background: linear-gradient(180deg, var(--bg) 0%, #10081C 100%); }
.faq-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-md);
  overflow: hidden; transition: border-color .3s ease;
}
.faq-item.active { border-color: rgba(240, 184, 96, .35); }
.faq-question {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  background: none; border: none; padding: 20px 24px; font-size: 16px; font-weight: 600;
  color: var(--text); text-align: left; transition: color .3s ease;
}
.faq-question:hover { color: var(--gold); }
.faq-icon { flex-shrink: 0; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 300; color: var(--gold); transition: transform .4s var(--ease); }
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s var(--ease); }
.faq-answer-inner { padding: 0 24px 22px; font-size: 14px; color: var(--text-secondary); line-height: 1.8; }

/* Footer */
.site-footer {
  background: #060310; border-top: 1px solid var(--border); padding: 80px 0 32px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 56px;
}
.footer-brand .logo-text { font-size: 22px; }
.footer-brand p { color: var(--text-secondary); font-size: 14px; line-height: 1.7; margin-top: 18px; max-width: 320px; }
.footer-col h4 { color: var(--text); font-size: 15px; font-weight: 700; margin-bottom: 20px; letter-spacing: .5px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-col a { color: var(--text-secondary); font-size: 14px; transition: color .3s ease; }
.footer-col a:hover { color: var(--gold); }
.footer-contact { display: flex; flex-direction: column; gap: 12px; color: var(--text-secondary); font-size: 14px; }
.footer-contact .contact-item { display: flex; align-items: center; gap: 10px; }
.footer-bottom {
  border-top: 1px solid rgba(240, 184, 96, .1); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  color: var(--text-secondary); font-size: 13px;
}
.footer-bottom a { color: var(--text-secondary); }
.footer-bottom a:hover { color: var(--gold); }

/* Responsive */
@media (max-width: 1024px) {
  .hot-grid { grid-template-columns: repeat(2, 1fr); }
  .playlist-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .playlist-grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .news-list { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .mobile-menu { display: none; }
  .mobile-menu.open { display: flex; }
}
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .hero { min-height: 92vh; padding: 120px 0 60px; }
  .hero h1 { font-size: 32px; }
  .hero-subtitle { font-size: 15px; }
  .shelf-card { min-width: 75vw; max-width: 75vw; }
  .hot-grid { grid-template-columns: 1fr; }
  .playlist-grid-3 { grid-template-columns: 1fr; }
  .playlist-grid-2 { grid-template-columns: 1fr; }
  .guide-body { padding: 24px 20px; }
  .news-card { flex-direction: column; }
  .news-thumb { flex: 0 0 auto; aspect-ratio: 16/9; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-banner { padding: 70px 24px; }
  .section-head { margin-bottom: 28px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn-gold-lg, .hero-actions .btn-outline-lg { width: 100%; }
  .shelf-card { min-width: 80vw; max-width: 80vw; }
}

/* roulang page: category1 */
:root {
      --primary: #221047;
      --primary-dark: #1A0B2E;
      --gold: #F0B860;
      --purple: #A78BFA;
      --teal: #5EEAD4;
      --bg-dark: #0B0614;
      --panel: #1F1435;
      --text-light: #F2EEFA;
      --text-muted: #B0A6C8;
      --border-gold: rgba(240, 184, 96, .2);
      --radius-lg: 16px;
      --radius-sm: 12px;
      --radius-btn: 8px;
      --shadow-gold: 0 0 24px rgba(240, 184, 96, .25);
      --transition: .3s ease;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background-color: var(--bg-dark);
      color: var(--text-light);
      line-height: 1.7;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }

    img {
      max-width: 100%;
      display: block;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    button {
      border: none;
      background: none;
      cursor: pointer;
      font-family: inherit;
    }

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* === 导航系统 === */
    .nav-container {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 999;
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: rgba(11, 6, 20, .88);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-gold);
      padding: 0 32px;
      height: 72px;
      transition: background .3s;
    }

    .nav-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .logo-icon {
      color: var(--gold);
      font-size: 22px;
      display: inline-flex;
      animation: twinkle 3s ease-in-out infinite;
    }

    .logo-text {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-light);
      letter-spacing: 1px;
    }

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

    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
      list-style: none;
      margin: 0;
    }

    .nav-links .nav-link {
      position: relative;
      display: inline-block;
      padding: 8px 16px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      transition: color .3s;
      border-radius: 6px;
    }

    .nav-links .nav-link::after {
      content: '';
      position: absolute;
      left: 16px;
      right: 16px;
      bottom: 2px;
      height: 2px;
      background: var(--gold);
      border-radius: 2px;
      transform: scaleX(0);
      transform-origin: center;
      transition: transform .3s;
    }

    .nav-links .nav-link:hover {
      color: var(--gold);
    }

    .nav-links .nav-link:hover::after,
    .nav-links .nav-link.active::after {
      transform: scaleX(1);
    }

    .nav-links .nav-link.active {
      color: var(--gold);
      font-weight: 600;
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: linear-gradient(135deg, #f0b860, #e0963a);
      color: #1A0B2E;
      font-weight: 700;
      font-size: 14px;
      padding: 10px 24px;
      border-radius: 999px;
      transition: all .3s;
      box-shadow: 0 4px 18px rgba(240, 184, 96, .3);
      flex-shrink: 0;
    }

    .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(240, 184, 96, .4);
    }

    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      padding: 6px;
      z-index: 1000;
    }

    .nav-toggle span {
      width: 24px;
      height: 2px;
      background: var(--gold);
      border-radius: 2px;
      transition: all .3s;
    }

    .nav-toggle.active span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle.active span:nth-child(2) {
      opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    /* === 通用按钮 === */
    .btn-gold {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: linear-gradient(135deg, #f0b860, #e0963a);
      color: #1A0B2E;
      font-weight: 700;
      font-size: 16px;
      padding: 14px 36px;
      border-radius: 999px;
      border: none;
      transition: all .3s;
      box-shadow: 0 6px 24px rgba(240, 184, 96, .3);
      cursor: pointer;
    }

    .btn-gold:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 32px rgba(240, 184, 96, .4);
      filter: brightness(1.05);
    }

    .btn-gold:active {
      transform: translateY(1px);
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: transparent;
      color: var(--gold);
      font-weight: 600;
      font-size: 16px;
      padding: 13px 34px;
      border-radius: 999px;
      border: 2px solid rgba(240, 184, 96, .6);
      transition: all .3s;
      cursor: pointer;
    }

    .btn-outline:hover {
      background: rgba(240, 184, 96, .1);
      border-color: var(--gold);
      box-shadow: 0 0 20px rgba(240, 184, 96, .2);
    }

    .btn-outline:active {
      transform: translateY(1px);
    }

    /* === Hero === */
    .page-hero {
      position: relative;
      min-height: 72vh;
      display: flex;
      align-items: center;
      background-size: cover;
      background-position: center;
      padding: 140px 0 80px;
      margin-top: 72px;
    }

    .page-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(11, 6, 20, .92) 0%, rgba(34, 16, 71, .75) 50%, rgba(11, 6, 20, .4) 100%);
    }

    .page-hero::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 120px;
      background: linear-gradient(to bottom, transparent, var(--bg-dark));
    }

    .hero-inner {
      position: relative;
      z-index: 2;
      width: 100%;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(240, 184, 96, .12);
      border: 1px solid rgba(240, 184, 96, .3);
      color: var(--gold);
      font-size: 13px;
      font-weight: 500;
      padding: 6px 18px;
      border-radius: 999px;
      margin-bottom: 20px;
      letter-spacing: 2px;
    }

    .hero-inner h1 {
      font-size: 48px;
      font-weight: 900;
      line-height: 1.25;
      letter-spacing: 2px;
      margin-bottom: 20px;
      max-width: 760px;
    }

    .hero-inner h1 .gold-text {
      color: var(--gold);
      position: relative;
    }

    .hero-sub {
      font-size: 18px;
      color: var(--text-muted);
      max-width: 560px;
      line-height: 1.8;
      margin-bottom: 36px;
    }

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

    .hero-scroll {
      position: absolute;
      bottom: 30px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 3;
      color: var(--gold);
      font-size: 24px;
      animation: bounceDown 2s ease-in-out infinite;
    }

    @keyframes bounceDown {
      0%, 100% { transform: translateX(-50%) translateY(0); }
      50% { transform: translateX(-50%) translateY(8px); }
    }

    @keyframes twinkle {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: .5; transform: scale(.8); }
    }

    /* === 通用区块 === */
    .section {
      padding: 96px 0;
    }

    .section-alt {
      background: var(--primary-dark);
    }

    .section-tag {
      display: inline-block;
      color: var(--gold);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 3px;
      text-transform: uppercase;
      margin-bottom: 12px;
      padding: 4px 0;
      border-bottom: 2px solid rgba(240, 184, 96, .3);
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 48px;
    }

    .section-head.center {
      flex-direction: column;
      align-items: center;
      text-align: center;
    }

    .section-head h2 {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.35;
      letter-spacing: 1px;
    }

    .section-head p {
      color: var(--text-muted);
      margin-top: 8px;
    }

    .text-link {
      color: var(--gold);
      font-weight: 500;
      transition: gap .3s;
      white-space: nowrap;
    }

    .text-link:hover {
      text-decoration: underline;
    }

    /* === 分类介绍区 === */
    .intro-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 64px;
      align-items: center;
    }

    .intro-copy h2 {
      font-size: 30px;
      font-weight: 700;
      line-height: 1.4;
      margin-bottom: 20px;
    }

    .intro-copy p {
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.8;
    }

    .intro-stats {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .stat-card {
      background: var(--panel);
      border: 1px solid var(--border-gold);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      text-align: center;
      transition: all .3s;
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-gold);
    }

    .stat-num {
      font-size: 36px;
      font-weight: 900;
      color: var(--gold);
      line-height: 1.2;
    }

    .stat-label {
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 6px;
    }

    /* === 卡片网格 === */
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }

    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .content-card {
      position: relative;
      background: var(--panel);
      border: 1px solid var(--border-gold);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: all .3s;
    }

    .content-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 0 24px rgba(240, 184, 96, .25);
      border-color: rgba(240, 184, 96, .5);
    }

    .card-cover {
      position: relative;
      aspect-ratio: 16 / 9;
      overflow: hidden;
    }

    .card-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .5s;
    }

    .content-card:hover .card-cover img {
      transform: scale(1.03);
    }

    .card-badge {
      position: absolute;
      top: 12px;
      right: 12px;
      background: rgba(11, 6, 20, .85);
      color: var(--gold);
      font-size: 12px;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 999px;
      border: 1px solid rgba(240, 184, 96, .3);
      letter-spacing: 1px;
      z-index: 2;
    }

    .card-body {
      padding: 20px;
    }

    .card-body h3 {
      font-size: 18px;
      font-weight: 700;
      line-height: 1.45;
      margin-bottom: 10px;
    }

    .card-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 14px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .card-link {
      color: var(--gold);
      font-size: 14px;
      font-weight: 500;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: gap .3s;
    }

    .card-link:hover {
      gap: 10px;
    }

    .tag-group {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 12px;
    }

    .tag {
      display: inline-block;
      font-size: 12px;
      padding: 2px 12px;
      border-radius: 999px;
      border: 1px solid transparent;
    }

    .tag-purple {
      color: var(--purple);
      background: rgba(167, 139, 250, .12);
      border-color: rgba(167, 139, 250, .3);
    }

    .tag-teal {
      color: var(--teal);
      background: rgba(94, 234, 212, .1);
      border-color: rgba(94, 234, 212, .25);
    }

    .tag-gold {
      color: var(--gold);
      background: rgba(240, 184, 96, .1);
      border-color: rgba(240, 184, 96, .3);
    }

    /* === 横滑片库 === */
    .h-scroll-wrap {
      position: relative;
    }

    .h-scroll {
      display: flex;
      gap: 24px;
      overflow-x: auto;
      scroll-behavior: smooth;
      padding-bottom: 16px;
      scrollbar-width: thin;
      scrollbar-color: var(--gold) transparent;
    }

    .h-scroll::-webkit-scrollbar {
      height: 4px;
    }

    .h-scroll::-webkit-scrollbar-thumb {
      background: rgba(240, 184, 96, .4);
      border-radius: 4px;
    }

    .h-scroll::-webkit-scrollbar-track {
      background: transparent;
    }

    .h-card {
      flex-shrink: 0;
      width: 300px;
      max-width: 300px;
    }

    .h-card .card-cover {
      aspect-ratio: 16/9;
    }

    /* === 列表式分区 === */
    .split-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }

    .list-item {
      display: flex;
      align-items: center;
      gap: 16px;
      background: var(--panel);
      border: 1px solid var(--border-gold);
      border-radius: var(--radius-sm);
      padding: 16px;
      transition: all .3s;
    }

    .list-item:hover {
      border-color: rgba(240, 184, 96, .5);
      box-shadow: var(--shadow-gold);
      transform: translateX(4px);
    }

    .list-item-icon {
      width: 44px;
      height: 44px;
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
      background: rgba(240, 184, 96, .1);
      color: var(--gold);
      font-size: 20px;
    }

    .list-item-content h4 {
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .list-item-content p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

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

    .step-card {
      position: relative;
      background: var(--panel);
      border: 1px solid var(--border-gold);
      border-radius: var(--radius-lg);
      padding: 32px 24px 24px;
      transition: all .3s;
    }

    .step-card::before {
      counter-increment: step-counter;
      content: counter(step-counter, decimal-leading-zero);
      position: absolute;
      top: 20px;
      right: 24px;
      font-size: 32px;
      font-weight: 900;
      color: rgba(240, 184, 96, .18);
      line-height: 1;
    }

    .step-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-gold);
    }

    .step-icon {
      width: 52px;
      height: 52px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(240, 184, 96, .15), rgba(167, 139, 250, .1));
      color: var(--gold);
      font-size: 24px;
      margin-bottom: 20px;
    }

    .step-card h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* === FAQ === */
    .faq-list {
      max-width: 800px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: var(--panel);
      border: 1px solid var(--border-gold);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: border-color .3s;
    }

    .faq-item.active {
      border-color: rgba(240, 184, 96, .5);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 18px 22px;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      color: var(--text-light);
      transition: color .3s;
      width: 100%;
      text-align: left;
    }

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

    .faq-icon {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: rgba(240, 184, 96, .1);
      color: var(--gold);
      font-size: 18px;
      transition: transform .3s;
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .4s ease;
    }

    .faq-answer-inner {
      padding: 0 22px 18px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* === CTA横幅 === */
    .cta-section {
      position: relative;
      padding: 90px 0;
      background: radial-gradient(ellipse at 30% 50%, rgba(167, 139, 250, .2), transparent 60%),
                  radial-gradient(ellipse at 70% 30%, rgba(240, 184, 96, .15), transparent 50%),
                  #130A24;
      text-align: center;
      overflow: hidden;
      border-top: 1px solid var(--border-gold);
      border-bottom: 1px solid var(--border-gold);
    }

    .cta-section::before {
      content: '';
      position: absolute;
      top: -80px;
      right: -80px;
      width: 200px;
      height: 200px;
      background: radial-gradient(circle, rgba(240, 184, 96, .2), transparent 70%);
      border-radius: 50%;
      animation: twinkle 5s ease-in-out infinite;
    }

    .cta-section h2 {
      font-size: 38px;
      font-weight: 900;
      margin-bottom: 16px;
      letter-spacing: 1px;
    }

    .cta-section p {
      font-size: 17px;
      color: var(--text-muted);
      max-width: 520px;
      margin: 0 auto 36px;
      line-height: 1.8;
    }

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

    /* === 页脚 === */
    .site-footer {
      background: #060310;
      border-top: 1px solid rgba(240, 184, 96, .15);
      padding: 64px 0 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 48px;
      padding-bottom: 48px;
    }

    .footer-brand p {
      font-size: 14px;
      color: var(--text-muted);
      margin-top: 12px;
      line-height: 1.8;
      max-width: 300px;
    }

    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--gold);
      margin-bottom: 16px;
      letter-spacing: 1px;
    }

    .footer-col ul {
      list-style: none;
      padding: 0;
    }

    .footer-col ul li {
      margin-bottom: 10px;
    }

    .footer-col ul a {
      font-size: 14px;
      color: var(--text-muted);
      transition: color .3s;
    }

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

    .footer-contact {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .contact-item {
      display: flex;
      gap: 8px;
      font-size: 13px;
      color: var(--text-muted);
    }

    .contact-item span {
      color: var(--gold);
      font-size: 12px;
      line-height: 1.6;
    }

    .footer-bottom {
      border-top: 1px solid rgba(240, 184, 96, .1);
      padding: 24px 0;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 13px;
      color: var(--text-muted);
    }

    /* === 焦点状态 === */
    a:focus-visible,
    button:focus-visible {
      outline: 2px solid var(--gold);
      outline-offset: 2px;
      border-radius: 4px;
    }

    /* === 响应式 === */
    @media (max-width: 1024px) {
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }

      .steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
    }

    @media (max-width: 768px) {
      .nav-container {
        padding: 0 20px;
        height: 64px;
      }

      .nav-links {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(11, 6, 20, .96);
        padding: 20px 24px;
        gap: 12px;
        border-bottom: 1px solid var(--border-gold);
        max-height: 0;
        overflow: hidden;
        transition: max-height .4s ease;
        opacity: 0;
        visibility: hidden;
      }

      .nav-links.open {
        max-height: 400px;
        opacity: 1;
        visibility: visible;
      }

      .nav-links .nav-link {
        display: block;
        width: 100%;
        padding: 10px 16px;
        font-size: 16px;
        border-radius: 8px;
      }

      .nav-links .nav-link::after {
        display: none;
      }

      .nav-links .nav-link:hover,
      .nav-links .nav-link.active {
        background: rgba(240, 184, 96, .1);
      }

      .nav-toggle {
        display: flex;
      }

      .nav-cta {
        padding: 8px 16px;
        font-size: 13px;
      }

      .page-hero {
        min-height: 60vh;
        padding: 120px 0 60px;
      }

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

      .hero-sub {
        font-size: 16px;
      }

      .section {
        padding: 64px 0;
      }

      .section-head {
        flex-direction: column;
        align-items: flex-start;
        margin-bottom: 32px;
      }

      .section-head h2 {
        font-size: 26px;
      }

      .intro-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .grid-2,
      .grid-3,
      .grid-4 {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .split-list {
        grid-template-columns: 1fr;
        gap: 16px;
      }

      .steps-grid {
        grid-template-columns: 1fr;
        gap: 16px;
      }

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

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .footer-bottom {
        flex-direction: column;
        text-align: center;
        justify-content: center;
      }

      .h-card {
        width: 75vw;
        max-width: 280px;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }

      .hero-inner h1 {
        font-size: 30px;
      }

      .hero-actions {
        flex-direction: column;
      }

      .btn-gold,
      .btn-outline {
        width: 100%;
        justify-content: center;
      }

      .intro-stats {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
      }

      .stat-num {
        font-size: 28px;
      }

      .cta-actions {
        flex-direction: column;
      }
    }

/* roulang page: article */
/* ===== 设计变量 ===== */
    :root {
      --primary: #221047;
      --primary-dark: #1A0B2E;
      --gold: #F0B860;
      --gold-light: #F5C97B;
      --purple: #A78BFA;
      --teal: #5EEAD4;
      --bg: #0B0614;
      --panel: #1F1435;
      --text: #F2EEFA;
      --muted: #B0A6C8;
      --border: rgba(240, 184, 96, .2);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-card: 0 8px 24px rgba(0, 0, 0, .3);
      --transition: .3s ease;
    }

    /* ===== 基础 Reset ===== */
    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
      background: var(--bg);
      color: var(--text);
      font-size: 16px;
      line-height: 1.7;
      padding-top: 72px;
      -webkit-font-smoothing: antialiased;
      min-height: 100vh;
    }
    a {
      color: var(--gold);
      text-decoration: none;
      transition: color var(--transition);
    }
    a:hover {
      color: var(--gold-light);
    }
    img {
      max-width: 100%;
      display: block;
    }
    ul,
    ol {
      list-style: none;
    }
    button {
      font-family: inherit;
      cursor: pointer;
    }
    :focus-visible {
      outline: 2px solid var(--gold);
      outline-offset: 2px;
    }

    /* ===== 容器 ===== */
    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* ===== 导航 ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: rgba(11, 6, 20, .85);
      -webkit-backdrop-filter: blur(16px);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
      height: 72px;
    }
    .nav-logo {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--text);
      flex-shrink: 0;
    }
    .logo-icon {
      font-size: 28px;
      color: var(--gold);
      line-height: 1;
    }
    .logo-text {
      font-size: 20px;
      font-weight: 900;
      letter-spacing: 1px;
    }
    .logo-gold {
      color: var(--gold);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
    }
    .nav-link {
      position: relative;
      color: var(--muted);
      font-size: 15px;
      font-weight: 500;
      padding: 6px 0;
      transition: color var(--transition);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: -2px;
      width: 100%;
      height: 2px;
      background: var(--gold);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform var(--transition);
    }
    .nav-link:hover {
      color: var(--gold);
    }
    .nav-link:hover::after,
    .nav-link.active::after {
      transform: scaleX(1);
    }
    .nav-link.active {
      color: var(--gold);
    }
    .btn-gold {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: var(--gold);
      color: #1A0B2E;
      font-weight: 700;
      font-size: 15px;
      padding: 12px 28px;
      border-radius: 999px;
      border: none;
      box-shadow: 0 4px 16px rgba(240, 184, 96, .25);
      transition: all var(--transition);
    }
    .btn-gold:hover {
      background: var(--gold-light);
      color: #1A0B2E;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(240, 184, 96, .35);
    }
    .btn-gold:active {
      transform: translateY(0);
      box-shadow: 0 2px 8px rgba(240, 184, 96, .3);
    }
    .btn-lg {
      padding: 16px 40px;
      font-size: 17px;
    }
    .nav-cta {
      flex-shrink: 0;
    }
    .nav-toggle {
      display: none;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      width: 40px;
      height: 40px;
      background: transparent;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 8px;
      flex-shrink: 0;
    }
    .nav-toggle span {
      display: block;
      width: 100%;
      height: 2px;
      background: var(--gold);
      border-radius: 2px;
      transition: transform .3s ease, opacity .3s ease;
    }
    .nav-toggle.open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }
    .nav-toggle.open span:nth-child(2) {
      opacity: 0;
    }
    .nav-toggle.open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    /* ===== 面包屑 ===== */
    .breadcrumb-wrap {
      padding: 28px 0 8px;
    }
    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: var(--muted);
    }
    .breadcrumb a {
      color: var(--muted);
      transition: color var(--transition);
    }
    .breadcrumb a:hover {
      color: var(--gold);
    }
    .breadcrumb-sep {
      color: var(--gold);
      font-weight: 700;
    }
    .breadcrumb .current {
      color: var(--gold);
      font-weight: 500;
      max-width: 320px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    /* ===== 文章主体 ===== */
    .article-section {
      padding: 32px 0 64px;
    }
    .article-card {
      max-width: 880px;
      margin: 0 auto;
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 52px;
      box-shadow: var(--shadow-card);
    }
    .article-header {
      margin-bottom: 32px;
      text-align: center;
    }
    .article-badge {
      display: inline-block;
      background: rgba(240, 184, 96, .1);
      color: var(--gold);
      font-size: 13px;
      font-weight: 600;
      padding: 5px 20px;
      border-radius: 999px;
      border: 1px solid rgba(240, 184, 96, .3);
      margin-bottom: 20px;
      letter-spacing: 1px;
    }
    .article-title {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.3;
      color: var(--text);
      margin-bottom: 20px;
      letter-spacing: 1px;
    }
    .article-meta {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 20px;
      font-size: 13px;
      color: var(--muted);
    }
    .article-meta span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .meta-star {
      color: var(--gold);
    }
    .article-cover {
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 40px;
      border: 1px solid var(--border);
    }
    .article-cover img {
      width: 100%;
      height: auto;
      aspect-ratio: 16 / 9;
      object-fit: cover;
    }
    .article-body {
      font-size: 16px;
      color: var(--muted);
    }
    .article-body > * + * {
      margin-top: 20px;
    }
    .article-body h2 {
      font-size: 28px;
      font-weight: 700;
      color: var(--text);
      margin-top: 40px;
      padding-left: 16px;
      border-left: 4px solid var(--gold);
      line-height: 1.4;
    }
    .article-body h3 {
      font-size: 22px;
      font-weight: 600;
      color: var(--text);
      margin-top: 32px;
      line-height: 1.4;
    }
    .article-body p {
      line-height: 1.8;
      color: var(--muted);
    }
    .article-body blockquote {
      border-left: 4px solid var(--gold);
      background: rgba(240, 184, 96, .05);
      padding: 20px 24px;
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
      color: var(--text);
      font-style: italic;
    }
    .article-body ul,
    .article-body ol {
      padding-left: 24px;
      line-height: 1.8;
    }
    .article-body ul li {
      list-style: disc;
    }
    .article-body ol li {
      list-style: decimal;
    }
    .article-body ul li::marker,
    .article-body ol li::marker {
      color: var(--gold);
    }
    .article-body img {
      border-radius: var(--radius-md);
      margin: 24px 0;
      border: 1px solid var(--border);
    }
    .article-body a {
      color: var(--gold);
      text-decoration: underline;
      text-underline-offset: 4px;
    }
    .article-body a:hover {
      color: var(--gold-light);
    }
    .article-body table {
      width: 100%;
      border-collapse: collapse;
      margin: 24px 0;
      font-size: 14px;
    }
    .article-body th,
    .article-body td {
      border: 1px solid var(--border);
      padding: 12px 16px;
      text-align: left;
    }
    .article-body th {
      background: rgba(240, 184, 96, .08);
      color: var(--text);
      font-weight: 600;
    }

    /* ===== 标签区 ===== */
    .article-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid var(--border);
    }
    .tag-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(167, 139, 250, .12);
      color: var(--purple);
      border: 1px solid rgba(167, 139, 250, .25);
      font-size: 13px;
      font-weight: 500;
      padding: 6px 16px;
      border-radius: 999px;
      transition: all var(--transition);
    }
    .tag-badge:hover {
      background: rgba(167, 139, 250, .22);
      color: var(--purple);
    }

    /* ===== 文章底部导航 ===== */
    .article-footer-nav {
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid var(--border);
    }
    .back-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--gold);
      font-weight: 500;
      font-size: 15px;
      transition: transform var(--transition), color var(--transition);
    }
    .back-link:hover {
      color: var(--gold-light);
      transform: translateX(2px);
    }

    /* ===== 内容未找到 ===== */
    .not-found-section {
      padding: 80px 0 100px;
      min-height: 50vh;
    }
    .not-found-card {
      max-width: 540px;
      margin: 0 auto;
      text-align: center;
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 64px 40px;
      box-shadow: var(--shadow-card);
    }
    .not-found-icon {
      display: inline-block;
      font-size: 48px;
      color: var(--gold);
      margin-bottom: 16px;
      animation: twinkle 2.4s ease-in-out infinite;
    }
    @keyframes twinkle {
      0%,
      100% {
        opacity: 1;
        transform: scale(1);
      }
      50% {
        opacity: .55;
        transform: scale(1.12);
      }
    }
    .not-found-card h2 {
      font-size: 28px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 12px;
    }
    .not-found-card p {
      color: var(--muted);
      font-size: 15px;
      margin-bottom: 28px;
    }

    /* ===== 相关推荐 ===== */
    .related-section {
      padding: 64px 0 96px;
      background: linear-gradient(180deg, transparent, rgba(31, 20, 53, .35) 40%, transparent);
    }
    .section-heading {
      text-align: center;
      margin-bottom: 48px;
    }
    .section-heading h2 {
      font-size: 34px;
      font-weight: 800;
      color: var(--text);
      letter-spacing: 2px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
    }
    .section-heading h2::before,
    .section-heading h2::after {
      content: '✦';
      color: var(--gold);
      font-size: 20px;
    }
    .section-heading p {
      color: var(--muted);
      font-size: 15px;
      margin-top: 12px;
    }
    .related-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .related-card {
      display: block;
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }
    .related-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 32px rgba(240, 184, 96, .22);
      border-color: rgba(240, 184, 96, .4);
    }
    .related-cover {
      overflow: hidden;
      aspect-ratio: 16 / 9;
    }
    .related-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .5s ease;
    }
    .related-card:hover .related-cover img {
      transform: scale(1.05);
    }
    .related-info {
      padding: 20px;
    }
    .related-info h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 10px;
      line-height: 1.45;
      transition: color var(--transition);
    }
    .related-card:hover .related-info h3 {
      color: var(--gold);
    }
    .related-info p {
      font-size: 14px;
      color: var(--muted);
      line-height: 1.6;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    /* ===== CTA 横幅 ===== */
    .cta-section {
      padding: 40px 0 100px;
    }
    .cta-banner {
      position: relative;
      text-align: center;
      background: radial-gradient(ellipse at center, #2A1650 0%, #1A0B2E 60%, #0B0614 100%);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 72px 40px;
      overflow: hidden;
    }
    .cta-glow {
      position: absolute;
      width: 240px;
      height: 240px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(240, 184, 96, .22), transparent 70%);
      top: -60px;
      right: -40px;
      pointer-events: none;
      animation: float-glow 5s ease-in-out infinite;
    }
    @keyframes float-glow {
      0%,
      100% {
        transform: translateY(0);
      }
      50% {
        transform: translateY(-12px);
      }
    }
    .cta-banner h2 {
      font-size: 38px;
      font-weight: 800;
      color: var(--text);
      line-height: 1.4;
      margin-bottom: 16px;
      letter-spacing: 2px;
    }
    .cta-banner p {
      color: var(--muted);
      font-size: 16px;
      margin-bottom: 32px;
    }

    /* ===== 页脚 ===== */
    .site-footer {
      background: #060310;
      border-top: 1px solid rgba(240, 184, 96, .2);
      padding: 64px 0 32px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.4fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-brand p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
      max-width: 320px;
      margin-top: 4px;
    }
    .footer-col h4 {
      color: var(--text);
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 10px;
    }
    .footer-col h4::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: 0;
      width: 28px;
      height: 2px;
      background: var(--gold);
    }
    .footer-col ul li {
      margin-bottom: 12px;
    }
    .footer-col ul li a {
      color: var(--muted);
      font-size: 14px;
      transition: color var(--transition), padding-left var(--transition);
    }
    .footer-col ul li a:hover {
      color: var(--gold);
      padding-left: 4px;
    }
    .footer-contact {
      color: var(--muted);
      font-size: 14px;
    }
    .contact-item {
      display: flex;
      gap: 8px;
      margin-bottom: 12px;
      align-items: flex-start;
      line-height: 1.6;
    }
    .contact-item span {
      color: var(--gold);
      flex-shrink: 0;
    }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      padding-top: 32px;
      border-top: 1px solid rgba(240, 184, 96, .15);
      color: var(--muted);
      font-size: 13px;
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
      .related-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .article-card {
        padding: 40px 32px;
      }
      .article-title {
        font-size: 36px;
      }
      .cta-banner h2 {
        font-size: 32px;
      }
    }

    @media (max-width: 768px) {
      body {
        padding-top: 64px;
      }
      .nav-container {
        height: 64px;
        padding: 0 16px;
      }
      .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(11, 6, 20, .97);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 16px 24px;
        border-bottom: 1px solid var(--border);
        display: none;
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li a {
        display: block;
        padding: 14px 0;
        font-size: 16px;
        border-bottom: 1px solid rgba(240, 184, 96, .08);
      }
      .nav-links li:last-child a {
        border-bottom: none;
      }
      .nav-toggle {
        display: flex;
      }
      .nav-cta {
        padding: 10px 18px;
        font-size: 13px;
        margin-right: 8px;
      }
      .breadcrumb-wrap {
        padding: 20px 0 4px;
      }
      .article-card {
        padding: 28px 20px;
        border-radius: var(--radius-md);
      }
      .article-title {
        font-size: 28px;
      }
      .article-meta {
        gap: 12px;
      }
      .article-cover {
        margin-bottom: 24px;
      }
      .article-body h2 {
        font-size: 23px;
      }
      .article-body h3 {
        font-size: 19px;
      }
      .section-heading h2 {
        font-size: 26px;
      }
      .related-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      .cta-section {
        padding: 24px 0 64px;
      }
      .cta-banner {
        padding: 48px 24px;
      }
      .cta-banner h2 {
        font-size: 26px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .breadcrumb .current {
        max-width: 160px;
      }
    }

    @media (max-width: 520px) {
      .logo-text {
        font-size: 17px;
      }
      .logo-icon {
        font-size: 22px;
      }
      .container {
        padding: 0 16px;
      }
      .article-meta {
        flex-direction: column;
        align-items: center;
        gap: 8px;
      }
      .article-body p {
        font-size: 15px;
      }
      .cta-banner h2 {
        font-size: 22px;
      }
      .cta-banner p {
        font-size: 14px;
      }
      .section-heading h2::before,
      .section-heading h2::after {
        display: none;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
        align-items: center;
      }
      .article-footer-nav {
        flex-direction: column;
        align-items: center;
        text-align: center;
      }
    }

/* roulang page: category2 */
:root {
      --color-primary: #221047;
      --color-primary-dark: #1A0B2E;
      --color-gold: #F0B860;
      --color-gold-light: #F7D494;
      --color-purple: #A78BFA;
      --color-teal: #5EEAD4;
      --color-bg: #0B0614;
      --color-panel: #1F1435;
      --color-text: #F2EEFA;
      --color-text-secondary: #B0A6C8;
      --color-border: rgba(240,184,96,.2);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-card: 0 4px 24px rgba(0,0,0,.35);
      --shadow-gold: 0 0 24px rgba(240,184,96,.28);
      --container-max: 1280px;
      --header-height: 72px;
      --font-sans: 'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-sans);
      background: var(--color-bg);
      color: var(--color-text);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    img { max-width: 100%; display: block; }
    a { color: inherit; text-decoration: none; transition: color .3s ease, background .3s ease, border-color .3s ease, box-shadow .3s ease, transform .3s ease; }
    ul { list-style: none; }
    button { font-family: inherit; cursor: pointer; }
    .container {
      max-width: var(--container-max);
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    .text-gold { color: var(--color-gold); }

    /* ---------- 导航 ---------- */
    .nav-container {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      height: var(--header-height);
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 24px;
      background: rgba(11,6,20,.82);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--color-border);
      max-width: 100%;
      transition: background .4s ease;
    }
    .nav-logo {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      flex-shrink: 0;
    }
    .logo-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, var(--color-gold), #d99a3e);
      color: #1A0B2E;
      border-radius: 50%;
      font-size: 16px;
      line-height: 1;
      box-shadow: 0 0 18px rgba(240,184,96,.4);
    }
    .logo-text {
      font-size: 20px;
      font-weight: 800;
      color: var(--color-text);
      letter-spacing: .02em;
      white-space: nowrap;
    }
    .logo-gold { color: var(--color-gold); }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 6px;
      margin: 0;
      padding: 0;
    }
    .nav-link {
      position: relative;
      display: inline-block;
      padding: 8px 16px;
      font-size: 15px;
      font-weight: 500;
      color: var(--color-text-secondary);
      border-radius: var(--radius-sm);
      transition: color .3s ease;
    }
    .nav-link::after {
      content: '';
      position: absolute;
      left: 16px;
      right: 16px;
      bottom: 2px;
      height: 2px;
      background: var(--color-gold);
      border-radius: 2px;
      transform: scaleX(0);
      transform-origin: center;
      transition: transform .3s ease;
    }
    .nav-link:hover,
    .nav-link:focus-visible {
      color: var(--color-gold);
      outline: none;
    }
    .nav-link:hover::after,
    .nav-link:focus-visible::after,
    .nav-link.active::after {
      transform: scaleX(1);
    }
    .nav-link.active {
      color: var(--color-gold);
      font-weight: 600;
    }
    .nav-cta {
      flex-shrink: 0;
      margin-left: 12px;
    }
    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      padding: 8px;
      border-radius: var(--radius-sm);
    }
    .nav-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--color-text);
      border-radius: 2px;
      transition: transform .3s ease, opacity .3s ease;
    }
    .nav-toggle:hover span,
    .nav-toggle:focus-visible span {
      background: var(--color-gold);
    }
    .nav-toggle:focus-visible {
      outline: 2px solid var(--color-gold);
      outline-offset: 2px;
    }

    /* ---------- 按钮 ---------- */
    .btn-gold {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 24px;
      background: linear-gradient(135deg, #F0B860, #e0a344);
      color: #1A0B2E;
      font-size: 15px;
      font-weight: 700;
      border: none;
      border-radius: 999px;
      box-shadow: 0 4px 18px rgba(240,184,96,.25);
      transition: all .3s ease;
      white-space: nowrap;
    }
    .btn-gold:hover {
      background: linear-gradient(135deg, #f7c87a, #eeb459);
      box-shadow: 0 6px 28px rgba(240,184,96,.4);
      color: #1A0B2E;
      transform: translateY(-1px);
    }
    .btn-gold:active {
      transform: translateY(1px);
      box-shadow: 0 2px 10px rgba(240,184,96,.3);
    }
    .btn-gold:focus-visible {
      outline: 2px solid var(--color-gold);
      outline-offset: 2px;
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 24px;
      background: transparent;
      color: var(--color-gold);
      font-size: 15px;
      font-weight: 600;
      border: 1px solid var(--color-gold);
      border-radius: 999px;
      transition: all .3s ease;
      white-space: nowrap;
    }
    .btn-outline:hover {
      background: rgba(240,184,96,.1);
      box-shadow: var(--shadow-gold);
      transform: translateY(-1px);
    }
    .btn-outline:active {
      transform: translateY(1px);
    }
    .btn-outline:focus-visible {
      outline: 2px solid var(--color-gold);
      outline-offset: 2px;
    }

    /* ---------- Hero ---------- */
    .hero-section {
      position: relative;
      min-height: 88vh;
      display: flex;
      align-items: center;
      padding-top: var(--header-height);
      background-size: cover;
      background-position: center center;
      overflow: hidden;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(105deg, rgba(11,6,20,.94) 0%, rgba(26,11,46,.82) 45%, rgba(11,6,20,.55) 100%);
    }
    .hero-particles {
      position: absolute;
      inset: 0;
      pointer-events: none;
      opacity: .5;
      background-image:
        radial-gradient(1px 1px at 12% 32%, rgba(240,184,96,.7) 50%, transparent 51%),
        radial-gradient(1px 1px at 68% 18%, rgba(240,184,96,.5) 50%, transparent 51%),
        radial-gradient(1px 1px at 82% 56%, rgba(167,139,250,.7) 50%, transparent 51%),
        radial-gradient(1px 1px at 32% 72%, rgba(94,234,212,.6) 50%, transparent 51%),
        radial-gradient(1px 1px at 45% 28%, rgba(240,184,96,.4) 50%, transparent 51%),
        radial-gradient(1px 1px at 92% 22%, rgba(240,184,96,.6) 50%, transparent 51%),
        radial-gradient(1px 1px at 58% 82%, rgba(167,139,250,.5) 50%, transparent 51%),
        radial-gradient(1px 1px at 18% 58%, rgba(240,184,96,.4) 50%, transparent 51%);
      background-repeat: repeat;
      background-size: 100% 100%;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      padding-top: 40px;
      padding-bottom: 80px;
      max-width: 720px;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: rgba(240,184,96,.12);
      border: 1px solid var(--color-border);
      color: var(--color-gold);
      font-size: 13px;
      font-weight: 600;
      border-radius: 999px;
      letter-spacing: .04em;
      margin-bottom: 24px;
    }
    .hero-title {
      font-size: clamp(38px, 5.5vw, 58px);
      font-weight: 900;
      line-height: 1.15;
      letter-spacing: .01em;
      color: var(--color-text);
      margin-bottom: 20px;
    }
    .hero-title .text-gold {
      background: linear-gradient(135deg, #f7d494, #F0B860);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .hero-subtitle {
      font-size: 17px;
      color: var(--color-text-secondary);
      line-height: 1.8;
      margin-bottom: 36px;
      max-width: 560px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }
    .hero-scroll {
      position: absolute;
      bottom: 28px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 2;
      color: var(--color-gold);
      font-size: 22px;
      animation: floatDown 2.2s ease-in-out infinite;
    }
    @keyframes floatDown {
      0%,100% { transform: translate(-50%, 0); opacity: .8; }
      50% { transform: translate(-50%, 10px); opacity: .4; }
    }

    /* ---------- 板块通用 ---------- */
    .section-padding { padding: 96px 0; }
    .section-header {
      text-align: center;
      max-width: 680px;
      margin: 0 auto 56px;
    }
    .section-tag {
      display: inline-block;
      padding: 5px 14px;
      background: rgba(167,139,250,.12);
      border: 1px solid rgba(167,139,250,.3);
      color: var(--color-purple);
      font-size: 13px;
      font-weight: 600;
      border-radius: 999px;
      letter-spacing: .06em;
      margin-bottom: 16px;
    }
    .section-title {
      font-size: clamp(28px, 3.2vw, 36px);
      font-weight: 800;
      line-height: 1.3;
      color: var(--color-text);
      margin-bottom: 14px;
    }
    .section-subtitle {
      font-size: 15px;
      color: var(--color-text-secondary);
      line-height: 1.7;
    }
    .section-alt {
      background: linear-gradient(180deg, rgba(31,20,53,.4) 0%, rgba(13,7,24,.6) 100%);
      border-top: 1px solid rgba(240,184,96,.08);
      border-bottom: 1px solid rgba(240,184,96,.08);
    }

    /* ---------- 卖点卡片 ---------- */
    .feature-card {
      background: var(--color-panel);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      transition: all .3s ease;
      height: 100%;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-gold);
    }
    .feature-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 52px;
      height: 52px;
      border-radius: 14px;
      font-size: 24px;
      margin-bottom: 18px;
      background: rgba(240,184,96,.12);
      border: 1px solid var(--color-border);
    }
    .feature-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--color-text);
    }
    .feature-card p {
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.7;
    }

    /* ---------- 内容卡片 ---------- */
    .content-card {
      background: var(--color-panel);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: all .3s ease;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .content-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-gold);
    }
    .content-card .card-image {
      position: relative;
      overflow: hidden;
      aspect-ratio: 16 / 10;
    }
    .content-card .card-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .5s ease;
    }
    .content-card:hover .card-image img {
      transform: scale(1.04);
    }
    .content-card .card-body {
      padding: 20px 22px 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .content-card .card-badge {
      display: inline-flex;
      align-self: flex-start;
      padding: 4px 12px;
      background: rgba(167,139,250,.14);
      color: var(--color-purple);
      font-size: 12px;
      font-weight: 600;
      border-radius: 999px;
      margin-bottom: 12px;
    }
    .content-card .card-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .content-card .card-desc {
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.7;
      flex: 1;
    }
    .content-card .card-link {
      margin-top: 16px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--color-gold);
      font-size: 14px;
      font-weight: 600;
      transition: gap .3s ease;
    }
    .content-card .card-link:hover { gap: 10px; }

    /* ---------- 专题横滑 ---------- */
    .topic-block { margin-bottom: 64px; }
    .topic-block:last-child { margin-bottom: 0; }
    .topic-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 24px;
      flex-wrap: wrap;
      gap: 12px;
    }
    .topic-head h3 {
      font-size: 24px;
      font-weight: 800;
      color: var(--color-text);
    }
    .topic-head .topic-desc {
      font-size: 14px;
      color: var(--color-text-secondary);
    }
    .topic-scroll {
      display: flex;
      gap: 20px;
      overflow-x: auto;
      padding-bottom: 16px;
      scrollbar-width: thin;
      scrollbar-color: rgba(240,184,96,.4) transparent;
      -webkit-overflow-scrolling: touch;
    }
    .topic-scroll::-webkit-scrollbar {
      height: 5px;
    }
    .topic-scroll::-webkit-scrollbar-track {
      background: transparent;
    }
    .topic-scroll::-webkit-scrollbar-thumb {
      background: rgba(240,184,96,.35);
      border-radius: 4px;
    }
    .topic-mini-card {
      min-width: 250px;
      max-width: 290px;
      background: var(--color-panel);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all .3s ease;
      flex-shrink: 0;
    }
    .topic-mini-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-gold);
    }
    .topic-mini-card .mini-img {
      aspect-ratio: 16 / 9;
      overflow: hidden;
    }
    .topic-mini-card .mini-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .5s ease;
    }
    .topic-mini-card:hover .mini-img img { transform: scale(1.05); }
    .topic-mini-card .mini-body {
      padding: 16px 18px 20px;
    }
    .topic-mini-card .mini-tag {
      display: inline-block;
      font-size: 12px;
      color: var(--color-teal);
      margin-bottom: 6px;
      font-weight: 600;
    }
    .topic-mini-card h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--color-text);
      line-height: 1.4;
    }
    .rank-card {
      display: flex;
      align-items: center;
      gap: 18px;
      background: var(--color-panel);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 20px;
      transition: all .3s ease;
      height: 100%;
    }
    .rank-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-gold);
    }
    .rank-number {
      flex-shrink: 0;
      width: 48px;
      height: 48px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
      background: #1A0B2E;
      border: 1px solid var(--color-gold);
      color: var(--color-gold);
      font-size: 22px;
      font-weight: 900;
    }
    .rank-info { flex: 1; }
    .rank-info h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 4px;
    }
    .rank-info p {
      font-size: 13px;
      color: var(--color-text-secondary);
      line-height: 1.6;
    }
    .nebula-card {
      text-align: center;
      background: var(--color-panel);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: all .3s ease;
      height: 100%;
    }
    .nebula-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-gold);
    }
    .nebula-card .nebula-img {
      aspect-ratio: 4 / 3;
      overflow: hidden;
    }
    .nebula-card .nebula-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .5s ease;
    }
    .nebula-card:hover .nebula-img img { transform: scale(1.04); }
    .nebula-card .nebula-body {
      padding: 20px 18px 24px;
    }
    .nebula-card h4 {
      font-size: 17px;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 8px;
    }
    .nebula-card p {
      font-size: 13px;
      color: var(--color-text-secondary);
      line-height: 1.6;
    }

    /* ---------- 适用人群 ---------- */
    .audience-card {
      background: linear-gradient(135deg, rgba(31,20,53,.9) 0%, rgba(26,11,46,.8) 100%);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 36px 28px;
      transition: all .3s ease;
      height: 100%;
    }
    .audience-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-gold);
    }
    .audience-icon {
      font-size: 34px;
      margin-bottom: 16px;
      display: block;
    }
    .audience-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--color-text);
    }
    .audience-card p {
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.7;
    }

    /* ---------- FAQ ---------- */
    .faq-list { max-width: 820px; margin: 0 auto; }
    .faq-item {
      background: var(--color-panel);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
      transition: border-color .3s ease, box-shadow .3s ease;
    }
    .faq-item:hover { border-color: rgba(240,184,96,.4); }
    .faq-item.active {
      border-color: var(--color-gold);
      box-shadow: 0 0 20px rgba(240,184,96,.12);
    }
    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 20px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 16px;
      font-weight: 600;
      color: var(--color-text);
      transition: color .3s ease;
    }
    .faq-question:hover { color: var(--color-gold); }
    .faq-question:focus-visible {
      outline: 2px solid var(--color-gold);
      outline-offset: -2px;
      border-radius: var(--radius-md);
    }
    .faq-icon {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: rgba(240,184,96,.1);
      border: 1px solid var(--color-border);
      color: var(--color-gold);
      font-size: 16px;
      font-weight: 700;
      transition: transform .35s ease, background .3s ease;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      background: rgba(240,184,96,.18);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .4s ease;
    }
    .faq-answer-inner {
      padding: 0 24px 22px;
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.8;
    }

    /* ---------- CTA ---------- */
    .cta-banner {
      position: relative;
      padding: 96px 0;
      background: radial-gradient(ellipse at 50% 20%, rgba(34,16,71,.9) 0%, rgba(11,6,20,.96) 70%);
      border-top: 1px solid var(--color-border);
      overflow: hidden;
    }
    .cta-banner::before {
      content: '';
      position: absolute;
      top: -80px;
      right: -60px;
      width: 300px;
      height: 300px;
      background: radial-gradient(circle, rgba(240,184,96,.18) 0%, transparent 70%);
      pointer-events: none;
      border-radius: 50%;
    }
    .cta-banner::after {
      content: '';
      position: absolute;
      bottom: -60px;
      left: -40px;
      width: 260px;
      height: 260px;
      background: radial-gradient(circle, rgba(167,139,250,.12) 0%, transparent 70%);
      pointer-events: none;
      border-radius: 50%;
    }
    .cta-inner {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 640px;
      margin: 0 auto;
    }
    .cta-inner h2 {
      font-size: clamp(28px, 3.5vw, 40px);
      font-weight: 900;
      line-height: 1.3;
      margin-bottom: 16px;
      color: var(--color-text);
    }
    .cta-inner h2 .text-gold {
      background: linear-gradient(135deg, #f7d494, #F0B860);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .cta-inner p {
      font-size: 15px;
      color: var(--color-text-secondary);
      line-height: 1.8;
      margin-bottom: 36px;
    }
    .cta-actions {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 16px;
    }

    /* ---------- 页脚 ---------- */
    .site-footer {
      background: #060310;
      border-top: 1px solid rgba(240,184,96,.15);
      padding: 64px 0 0;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 48px;
    }
    .footer-brand p {
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.8;
      max-width: 300px;
    }
    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 18px;
      letter-spacing: .02em;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul a {
      font-size: 14px;
      color: var(--color-text-secondary);
      transition: color .3s ease, padding-left .3s ease;
    }
    .footer-col ul a:hover {
      color: var(--color-gold);
      padding-left: 4px;
    }
    .footer-contact .contact-item {
      display: flex;
      align-items: flex-start;
      gap: 8px;
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.7;
      margin-bottom: 10px;
    }
    .footer-contact .contact-item span {
      color: var(--color-gold);
      flex-shrink: 0;
      font-size: 12px;
      margin-top: 3px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(240,184,96,.12);
      padding: 24px 0;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 10px;
      font-size: 13px;
      color: var(--color-text-secondary);
    }

    /* ---------- 响应式 ---------- */
    @media (max-width: 1024px) {
      .section-padding { padding: 72px 0; }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
    }
    @media (max-width: 768px) {
      :root { --header-height: 64px; }
      .nav-links {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        background: rgba(11,6,20,.97);
        padding: 16px 24px 24px;
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-110%);
        opacity: 0;
        transition: transform .4s ease, opacity .3s ease;
        pointer-events: none;
        gap: 4px;
      }
      .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
      }
      .nav-link {
        display: block;
        padding: 12px 16px;
        font-size: 16px;
        border-radius: var(--radius-sm);
      }
      .nav-link::after { display: none; }
      .nav-link:hover,
      .nav-link.active {
        background: rgba(240,184,96,.08);
        color: var(--color-gold);
      }
      .nav-cta { display: none; }
      .nav-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
      }
      .nav-toggle.open span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 4px);
      }
      .nav-toggle.open span:nth-child(2) {
        opacity: 0;
      }
      .nav-toggle.open span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -4px);
      }
      .section-padding { padding: 56px 0; }
      .section-header { margin-bottom: 40px; }
      .hero-title { font-size: 36px; }
      .hero-subtitle { font-size: 15px; }
      .topic-scroll .topic-mini-card {
        min-width: 78vw;
        max-width: 78vw;
      }
      .footer-grid { grid-template-columns: 1fr; gap: 28px; }
      .footer-bottom { flex-direction: column; text-align: center; }
      .cta-banner { padding: 64px 0; }
    }
    @media (max-width: 520px) {
      .container { padding-left: 18px; padding-right: 18px; }
      .hero-actions { flex-direction: column; align-items: stretch; }
      .hero-actions .btn-gold,
      .hero-actions .btn-outline {
        width: 100%;
      }
      .section-title { font-size: 25px; }
      .feature-card { padding: 24px 20px; }
      .content-card .card-body { padding: 16px 16px 20px; }
      .topic-head { flex-direction: column; align-items: flex-start; }
      .cta-actions { flex-direction: column; align-items: stretch; }
      .cta-actions .btn-gold,
      .cta-actions .btn-outline {
        width: 100%;
      }
    }

/* roulang page: category3 */
:root {
  --primary: #221047;
  --primary-dark: #1A0B2E;
  --gold: #F0B860;
  --gold-light: #F7CE8A;
  --pink: #A78BFA;
  --cyan: #5EEAD4;
  --bg-dark: #0B0614;
  --panel: #1F1435;
  --text-main: #F2EEFA;
  --text-sub: #B0A6C8;
  --border-gold: rgba(240,184,96,.2);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 8px 32px rgba(0,0,0,.35);
  --shadow-gold: 0 0 24px rgba(240,184,96,.25);
  --container-max: 1280px;
  --spacing-section: 96px;
  --spacing-section-mobile: 48px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color .25s ease, border-color .25s ease, background .25s ease, box-shadow .25s ease, transform .25s ease, opacity .25s ease;
}

img {
  max-width: 100%;
  display: block;
}

button,
input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

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

.section {
  padding: var(--spacing-section) 0;
}

@media (max-width: 768px) {
  .section {
    padding: var(--spacing-section-mobile) 0;
  }
}

/* ===== 导航 ===== */
.nav-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 14px 24px;
  background: rgba(11, 6, 20, .82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-gold);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--gold), #F7CE8A);
  color: var(--primary-dark);
  border-radius: 50%;
  font-size: 18px;
  font-weight: 900;
  box-shadow: 0 0 18px rgba(240,184,96,.4);
}

.logo-text {
  font-size: 20px;
  font-weight: 900;
  color: var(--text-main);
  letter-spacing: 1px;
  white-space: nowrap;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-links .nav-link {
  padding: 8px 14px;
  color: var(--text-sub);
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  position: relative;
  white-space: nowrap;
}

.nav-links .nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
  opacity: 0;
  transform: scaleX(.4);
  transition: opacity .25s ease, transform .25s ease;
}

.nav-links .nav-link:hover,
.nav-links .nav-link.active {
  color: var(--gold);
}

.nav-links .nav-link:hover::after,
.nav-links .nav-link.active::after {
  opacity: 1;
  transform: scaleX(1);
}

.nav-links .nav-link.active {
  color: var(--gold);
}

.btn-gold {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  background: linear-gradient(135deg, var(--gold), #F7CE8A);
  color: #1A0B2E;
  font-size: 15px;
  font-weight: 700;
  border-radius: 999px;
  box-shadow: 0 4px 20px rgba(240,184,96,.35);
  border: 1px solid rgba(255,255,255,.3);
  cursor: pointer;
  transition: all .3s ease;
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(240,184,96,.5);
  color: #1A0B2E;
}

.btn-gold:active {
  transform: translateY(1px);
  box-shadow: 0 2px 10px rgba(240,184,96,.3);
}

.btn-outline-gold {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border: 2px solid var(--gold);
  color: var(--gold);
  font-size: 15px;
  font-weight: 700;
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
  transition: all .3s ease;
}

.btn-outline-gold:hover {
  background: rgba(240,184,96,.1);
  box-shadow: var(--shadow-gold);
  transform: translateY(-2px);
}

.btn-outline-gold:active {
  transform: translateY(1px);
}

.nav-cta {
  padding: 10px 22px;
  font-size: 14px;
  margin-left: 12px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  align-items: center;
  border-radius: var(--radius-sm);
  cursor: pointer;
  z-index: 1100;
  background: rgba(240,184,96,.1);
  border: 1px solid var(--border-gold);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
  transition: all .3s ease;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 1024px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(320px, 85vw);
    height: 100vh;
    flex-direction: column;
    justify-content: center;
    align-items: stretch;
    gap: 10px;
    padding: 30px;
    background: #1A0B2E;
    border-left: 1px solid var(--border-gold);
    transition: right .35s ease;
    box-shadow: -20px 0 60px rgba(0,0,0,.4);
  }
  .nav-links.open {
    right: 0;
  }
  .nav-links .nav-link {
    font-size: 18px;
    padding: 14px 16px;
    text-align: center;
    border-radius: 10px;
  }
  .nav-links .nav-link:hover,
  .nav-links .nav-link.active {
    background: rgba(240,184,96,.12);
  }
  .nav-links .nav-link::after {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-cta {
    display: none;
  }
}

@media (max-width: 520px) {
  .nav-container {
    padding: 10px 16px;
  }
  .logo-text {
    font-size: 17px;
  }
  .logo-icon {
    width: 32px;
    height: 32px;
    font-size: 15px;
  }
}

/* ===== Hero ===== */
.hero-section {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  isolation: isolate;
  padding: 140px 0 90px;
}

.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, rgba(11,6,20,.96) 0%, rgba(27,10,46,.85) 40%, rgba(34,16,71,.45) 70%, rgba(11,6,20,.35) 100%);
  z-index: -1;
}

.hero-section::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(167,139,250,.15) 0%, transparent 50%);
  z-index: -1;
}

.hero-content {
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(240,184,96,.12);
  border: 1px solid var(--border-gold);
  color: var(--gold);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: .5px;
}

.hero-title {
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 900;
  line-height: 1.18;
  color: var(--text-main);
  letter-spacing: 2px;
  margin-bottom: 22px;
}

.hero-title .text-gold {
  color: var(--gold);
  position: relative;
  display: inline-block;
}

.hero-title .text-gold::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 6px;
  height: 10px;
  background: rgba(240,184,96,.2);
  border-radius: 4px;
  z-index: -1;
}

.hero-subtitle {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-sub);
  max-width: 560px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--gold);
  font-size: 28px;
  animation: floatDown 2s infinite ease-in-out;
  opacity: .8;
}

@keyframes floatDown {
  0%, 100% { transform: translate(-50%, 0); opacity: .5; }
  50% { transform: translate(-50%, 10px); opacity: 1; }
}

@media (max-width: 768px) {
  .hero-section {
    min-height: 80vh;
    padding: 120px 0 60px;
  }
  .hero-title {
    font-size: 36px;
  }
  .hero-subtitle {
    font-size: 16px;
  }
  .hero-actions .btn-gold,
  .hero-actions .btn-outline-gold {
    width: 100%;
  }
}

/* ===== 数据统计 ===== */
.stats-section {
  padding: 60px 0;
  background: linear-gradient(180deg, var(--bg-dark), #140A26);
  border-bottom: 1px solid var(--border-gold);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-item {
  padding: 30px 20px;
  background: rgba(31,20,53,.5);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  transition: all .3s ease;
}

.stat-item:hover {
  border-color: rgba(240,184,96,.5);
  box-shadow: var(--shadow-gold);
  transform: translateY(-4px);
}

.stat-number {
  font-size: 44px;
  font-weight: 900;
  color: var(--gold);
  line-height: 1.2;
  margin-bottom: 6px;
  font-family: inherit;
}

.stat-label {
  color: var(--text-sub);
  font-size: 15px;
  font-weight: 500;
}

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

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

/* ===== 板块标题 ===== */
.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 56px;
}

.section-head .section-eyebrow {
  display: inline-block;
  color: var(--gold);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 900;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.section-head p {
  color: var(--text-sub);
  font-size: 16px;
  line-height: 1.7;
}

/* ===== 特性卡 ===== */
.feature-section {
  position: relative;
  background: var(--bg-dark);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--panel);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
  opacity: 0;
  transition: opacity .3s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card), var(--shadow-gold);
  border-color: rgba(240,184,96,.4);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
  color: var(--gold);
  background: rgba(240,184,96,.12);
  border: 1px solid var(--border-gold);
}

.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  letter-spacing: .5px;
}

.feature-card p {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.7;
}

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

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

/* ===== 场景卡 ===== */
.scene-section {
  background: linear-gradient(180deg, var(--bg-dark), #180D2E);
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.scene-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--border-gold);
  transition: all .3s ease;
}

.scene-card:hover {
  transform: translateY(-4px);
  border-color: rgba(240,184,96,.4);
  box-shadow: var(--shadow-card), var(--shadow-gold);
}

.scene-card .scene-img {
  height: 180px;
  overflow: hidden;
}

.scene-card .scene-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.scene-card:hover .scene-img img {
  transform: scale(1.05);
}

.scene-card .scene-body {
  padding: 20px;
}

.scene-card .scene-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 12px;
  background: rgba(167,139,250,.15);
  color: var(--pink);
  border: 1px solid rgba(167,139,250,.3);
}

.scene-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
}

.scene-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.6;
}

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

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

/* ===== 专题推荐卡片 ===== */
.guide-section {
  background: var(--bg-dark);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.guide-card {
  background: var(--panel);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all .3s ease;
  display: flex;
  flex-direction: column;
}

.guide-card:hover {
  transform: translateY(-4px);
  border-color: rgba(240,184,96,.4);
  box-shadow: var(--shadow-card), var(--shadow-gold);
}

.guide-card .guide-img {
  position: relative;
  height: 190px;
  overflow: hidden;
}

.guide-card .guide-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.guide-card:hover .guide-img img {
  transform: scale(1.05);
}

.guide-card .guide-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(11,6,20,.7);
  color: var(--gold);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  border: 1px solid rgba(240,184,96,.3);
  backdrop-filter: blur(6px);
  letter-spacing: .5px;
}

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

.guide-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.4;
}

.guide-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.65;
  margin-bottom: 16px;
  flex: 1;
}

.guide-link {
  color: var(--gold);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap .25s ease;
}

.guide-link:hover {
  gap: 12px;
  color: var(--gold-light);
}

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

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

/* ===== 流程步骤 ===== */
.process-section {
  background: linear-gradient(180deg, var(--bg-dark), #140A26);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
}

.process-steps::before {
  content: "";
  position: absolute;
  top: 54px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), rgba(240,184,96,.2));
  border-radius: 2px;
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 56px;
  height: 56px;
  margin: 0 auto 18px;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: var(--primary-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 900;
  box-shadow: 0 0 20px rgba(240,184,96,.35);
}

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

.process-step p {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.6;
  padding: 0 8px;
}

@media (max-width: 1024px) {
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
  .process-steps::before {
    display: none;
  }
}

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

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-dark);
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--panel);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color .3s ease, box-shadow .3s ease;
}

.faq-item:hover {
  border-color: rgba(240,184,96,.4);
}

.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  list-style: none;
  transition: color .3s ease;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 24px;
  color: var(--gold);
  font-weight: 400;
  transition: transform .3s ease;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item[open] summary {
  color: var(--gold);
}

.faq-item .faq-answer {
  padding: 0 24px 22px;
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.7;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 110px 0;
  text-align: center;
  background: radial-gradient(ellipse at 20% 20%, rgba(240,184,96,.15) 0%, transparent 50%),
              radial-gradient(ellipse at 80% 80%, rgba(167,139,250,.12) 0%, transparent 50%),
              linear-gradient(135deg, #1A0B2E, #2A1450);
  border-top: 1px solid var(--border-gold);
  border-bottom: 1px solid var(--border-gold);
  overflow: hidden;
}

.cta-section::before {
  content: "✦";
  position: absolute;
  top: 40px;
  right: 8%;
  font-size: 80px;
  color: rgba(240,184,96,.08);
  animation: floatBody 6s ease-in-out infinite;
}

.cta-section::after {
  content: "✦";
  position: absolute;
  bottom: 40px;
  left: 8%;
  font-size: 60px;
  color: rgba(167,139,250,.08);
  animation: floatBody 8s ease-in-out infinite reverse;
}

@keyframes floatBody {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 900;
  color: var(--text-main);
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.cta-content h2 .text-gold {
  color: var(--gold);
}

.cta-content p {
  color: var(--text-sub);
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 32px;
}

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

.cta-divider {
  width: 64px;
  height: 2px;
  background: var(--gold);
  margin: 24px auto 28px;
  opacity: .6;
  border-radius: 2px;
}

@media (max-width: 768px) {
  .cta-section {
    padding: 70px 0;
  }
  .cta-actions .btn-gold,
  .cta-actions .btn-outline-gold {
    width: 100%;
  }
}

/* ===== 页脚 ===== */
.site-footer {
  background: #060310;
  border-top: 1px solid var(--border-gold);
  padding: 70px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 44px;
  padding-bottom: 50px;
}

.footer-brand p {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.7;
  margin-top: 8px;
  max-width: 280px;
}

.footer-col h4 {
  color: var(--text-main);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: .5px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul li a {
  color: var(--text-sub);
  font-size: 15px;
  transition: color .25s ease, padding-left .25s ease;
}

.footer-col ul li a:hover {
  color: var(--gold);
  padding-left: 6px;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.6;
}

.contact-item span {
  color: var(--gold);
  font-size: 12px;
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid rgba(240,184,96,.1);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--text-sub);
  font-size: 13px;
}

.footer-bottom span:last-child {
  color: rgba(240,184,96,.6);
}

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

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ===== 焦点状态 ===== */
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== 通用辅助 ===== */
.text-gold {
  color: var(--gold);
}

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

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

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

.bg-panel {
  background: var(--panel);
}

.border-gold {
  border: 1px solid var(--border-gold);
}

.rounded-16 {
  border-radius: var(--radius-lg);
}

.rounded-12 {
  border-radius: var(--radius-md);
}