/* roulang page: index */
:root {
  --bg: #0A0C10;
  --bg-soft: #11151E;
  --card: #141821;
  --line: rgba(255,255,255,0.08);
  --primary: #00E5A0;
  --primary-hover: #2CF5B8;
  --accent: #B84FFF;
  --gold: #FFB84D;
  --text: #F2F5F7;
  --text-dim: #8A93A3;
  --radius-card: 16px;
  --radius-btn: 8px;
  --shadow-card: 0 8px 24px rgba(0,0,0,0.25);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
img { display: block; max-width: 100%; }
button { background: none; border: none; cursor: pointer; color: inherit; font-family: inherit; }
input { font-family: inherit; }

.container-x { max-width: 1200px; margin-inline: auto; padding-inline: 24px; }
.section { padding-block: 96px; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 56px; }
.section-head.center { flex-direction: column; align-items: center; text-align: center; }
.section-title { font-size: 40px; font-weight: 800; line-height: 1.2; position: relative; padding-left: 16px; }
.section-title::before { content: ''; position: absolute; left: 0; top: 6px; width: 4px; height: calc(100% - 12px); background: var(--primary); }
.section-note { color: var(--text-dim); font-size: 14px; max-width: 280px; text-align: right; }

.site-header { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid var(--line); background: rgba(10,12,16,0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.logo-mark { width: 24px; height: 24px; background: var(--primary); border-radius: 6px; display: inline-block; position: relative; transform: rotate(45deg); box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--primary); flex-shrink: 0; }
.logo-mark::after { content: ''; position: absolute; inset: 5px; background: var(--accent); border-radius: 3px; }
.channel-nav { scrollbar-width: none; }
.channel-nav::-webkit-scrollbar { display: none; }
.channel-link { display: inline-block; padding: 10px 14px; margin-right: 4px; font-size: 14px; font-weight: 600; color: var(--text-dim); border-radius: 6px; position: relative; transition: color .2s, background .2s; white-space: nowrap; }
.channel-link:hover { color: var(--accent); background: rgba(184,79,255,0.08); }
.channel-link.active { color: var(--text); }
.channel-link.active::after { content: ''; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 2px; background: var(--primary); border-radius: 2px; }
.search-box { display: flex; align-items: center; gap: 8px; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; color: var(--text-dim); transition: border-color .2s; }
.search-box:focus-within { border-color: var(--primary); }
.social-icon { width: 34px; height: 34px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 8px; color: var(--text-dim); transition: all .2s; font-size: 13px; font-weight: 700; }
.social-icon:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 24px; border-radius: 8px; font-weight: 700; font-size: 15px; transition: all .25s; }
.btn-primary { background: var(--primary); color: #04070B; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,229,160,0.25); }
.btn-primary:active { transform: translateY(0) scale(0.98); }
.btn-outline { border: 1px solid rgba(255,255,255,0.25); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-outline:active { transform: scale(0.98); }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-lg { padding: 16px 32px; font-size: 16px; }

.hero { position: relative; overflow: hidden; }
.hero-grid-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-grid-bg::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px); background-size: 44px 44px; -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,0.8), transparent); mask-image: linear-gradient(to bottom, rgba(0,0,0,0.8), transparent); }
.hero-light-beam { position: absolute; top: -10%; right: -15%; width: 60%; height: 120%; background: linear-gradient(135deg, transparent, rgba(0,229,160,0.06), transparent); transform: rotate(30deg); pointer-events: none; }
.hero-badge { display: inline-block; background: var(--gold); color: #111; font-size: 13px; font-weight: 800; padding: 6px 14px; border-radius: 4px; }
.hero-img-frame { position: relative; width: 100%; max-width: 520px; aspect-ratio: 1/1; border-radius: 20px; border: 1px solid var(--line); overflow: hidden; box-shadow: 0 24px 48px rgba(0,0,0,0.4); }
.hero-img-frame::before { content: ''; position: absolute; top: -1px; left: -1px; width: 24px; height: 24px; border-top: 1px solid var(--primary); border-left: 1px solid var(--primary); z-index: 2; }
.hero-img-frame::after { content: ''; position: absolute; right: -1px; bottom: -1px; width: 24px; height: 24px; border-right: 1px solid var(--primary); border-bottom: 1px solid var(--primary); z-index: 2; }
.hero-float-panel { position: absolute; left: 16px; right: 16px; bottom: 16px; background: rgba(10,12,16,0.78); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.12); border-radius: 12px; padding: 14px 18px; }
.hero-cert { background: var(--gold); color: #111; font-weight: 800; font-size: 12px; padding: 4px 10px; border-radius: 4px; white-space: nowrap; }
.trust-item { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-dim); }
.trust-item::before { content: ''; width: 8px; height: 8px; background: var(--primary); border-radius: 2px; transform: rotate(45deg); }

.feature-card { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 28px; transition: all .3s; box-shadow: 0 8px 24px rgba(0,0,0,0.25); }
.feature-card:nth-child(odd) { margin-top: 12px; }
.feature-card:hover { border-color: var(--primary); box-shadow: 0 12px 32px rgba(0,229,160,0.12); transform: translateY(-2px); }
.corner { position: absolute; top: 12px; left: 12px; width: 24px; height: 24px; border-top: 1px solid var(--primary); border-left: 1px solid var(--primary); opacity: 0.6; pointer-events: none; }
.feature-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(0,229,160,0.08); color: var(--primary); display: flex; align-items: center; justify-content: center; transition: all .3s; }
.feature-card:hover .feature-icon { background: var(--primary); color: #111; }
.feature-card h3 { font-size: 20px; font-weight: 700; margin-top: 20px; }
.feature-card p { margin-top: 8px; font-size: 14px; color: var(--text-dim); line-height: 1.7; }
.feature-line { display: block; margin-top: 20px; width: 40px; height: 4px; background: var(--primary); border-radius: 2px; }

.demo-section { padding-block: 96px; }
.demo-list-item { display: flex; align-items: flex-start; gap: 12px; font-size: 15px; color: var(--text-dim); }
.demo-list-item .dot { width: 8px; height: 8px; background: var(--primary); margin-top: 8px; flex-shrink: 0; }
.shot-card { position: relative; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; aspect-ratio: 16/10; background: var(--card); transition: border-color .3s; }
.shot-card:hover { border-color: var(--primary); }
.shot-card img { width: 100%; height: 100%; object-fit: cover; }
.shot-card figcaption { position: absolute; left: 10px; bottom: 10px; font-size: 12px; padding: 4px 10px; background: rgba(10,12,16,0.75); border-radius: 6px; }
.shot-hot { border-color: var(--primary); }
.shot-hot .hot-badge { position: absolute; right: 10px; top: 10px; background: var(--gold); color: #111; font-size: 11px; font-weight: 800; padding: 3px 10px; border-radius: 4px; z-index: 2; }

.proof-section { background: var(--bg-soft); padding: 110px 0; clip-path: polygon(0 3%, 100% 0, 100% 97%, 0 100%); }
.stat-num { font-family: 'Rajdhani','Barlow Condensed',sans-serif; font-size: 72px; font-weight: 700; line-height: 1; color: var(--text); }
.stat-num span { color: var(--primary); font-size: 32px; }
.stat-label { margin-top: 8px; font-size: 13px; color: var(--text-dim); }
.testimonial-card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 28px; }
.testimonial-card .stars { color: var(--gold); letter-spacing: 2px; }
.testimonial-card p { margin-top: 14px; font-size: 15px; line-height: 1.75; color: var(--text); }
.testimonial-card .author { margin-top: 16px; font-size: 13px; color: var(--text-dim); }
.media-label { display: block; text-align: center; color: var(--text-dim); font-size: 13px; margin-bottom: 20px; }
.media-logo { display: flex; align-items: center; justify-content: center; height: 60px; background: rgba(255,255,255,0.04); border: 1px solid var(--line); border-radius: 12px; color: var(--text-dim); font-size: 14px; font-weight: 600; transition: all .3s; }
.media-logo:hover { color: var(--text); border-color: var(--primary); background: rgba(0,229,160,0.06); }

.price-card { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 40px 32px; transition: all .3s; width: 100%; }
.price-card:hover { border-color: var(--primary); box-shadow: 0 12px 32px rgba(0,229,160,0.12); transform: translateY(-4px); }
.price-card.featured { transform: scale(1.06); border-color: var(--gold); box-shadow: 0 16px 40px rgba(0,0,0,0.35); z-index: 2; }
.price-card.featured:hover { transform: scale(1.06) translateY(-4px); }
.price-card .plan-name { font-size: 16px; font-weight: 700; color: var(--text-dim); }
.price-card .price { font-size: 52px; font-weight: 800; line-height: 1.1; margin-top: 12px; }
.price-card .price .unit { font-size: 15px; color: var(--text-dim); margin-left: 4px; font-weight: 600; }
.price-feature { display: flex; align-items: center; gap: 10px; padding: 9px 0; font-size: 14px; color: var(--text-dim); }
.price-feature::before { content: '✓'; color: var(--primary); font-weight: 900; margin-right: 2px; flex-shrink: 0; }
.price-card .btn { margin-top: 28px; width: 100%; }
.recommend-badge { position: absolute; top: -12px; right: 24px; background: var(--gold); color: #111; font-weight: 800; font-size: 12px; padding: 4px 12px; border-radius: 4px; z-index: 3; }
.accent-stripe { position: absolute; top: 0; left: 0; right: 0; height: 6px; background: var(--accent); transform: rotate(-0.4deg) translateY(-2px); transform-origin: left center; border-radius: 0 0 6px 6px; }
.price-line-l { position: absolute; bottom: 0; left: 24px; width: 40px; height: 4px; background: var(--primary); border-radius: 2px; }
.price-line-r { position: absolute; bottom: 0; right: 24px; width: 40px; height: 4px; background: var(--primary); border-radius: 2px; }

.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-card { display: grid; grid-template-columns: 160px 1fr; gap: 24px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 16px; transition: all .3s; align-items: center; }
.news-card:hover { border-color: var(--primary); background: rgba(255,255,255,0.02); transform: translateY(-2px); }
.news-thumb { width: 160px; height: 100px; border-radius: 12px; overflow: hidden; background: var(--bg); flex-shrink: 0; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-content { min-width: 0; display: flex; flex-direction: column; justify-content: center; }
.news-meta { display: flex; gap: 12px; font-size: 13px; color: var(--text-dim); align-items: center; }
.news-tag { background: rgba(0,229,160,0.1); color: var(--primary); font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 4px; }
.news-content h3 { font-size: 20px; font-weight: 700; margin-top: 8px; transition: color .2s; }
.news-card:hover .news-content h3 { color: var(--primary); }
.news-content p { margin-top: 6px; font-size: 14px; color: var(--text-dim); overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.read-more { margin-top: 10px; font-size: 13px; color: var(--primary); }
.empty-state { text-align: center; padding: 80px 24px; border: 1px dashed rgba(255,255,255,0.15); border-radius: 16px; color: var(--text-dim); }
.empty-icon { width: 48px; height: 48px; border: 2px dashed var(--text-dim); border-radius: 50%; margin: 0 auto 14px; position: relative; }
.empty-icon::after { content: ''; position: absolute; top: 50%; left: 50%; width: 8px; height: 8px; background: var(--primary); border-radius: 50%; transform: translate(-50%, -50%); }

.faq-item { border: 1px solid var(--line); border-radius: 16px; background: var(--card); margin-bottom: 12px; overflow: hidden; transition: border-color .3s; }
.faq-item.open { border-color: var(--primary); }
.faq-q { display: flex; align-items: center; gap: 14px; width: 100%; padding: 20px 24px; text-align: left; font-size: 16px; font-weight: 700; color: var(--text); transition: color .2s; }
.faq-q:hover { color: var(--primary); }
.q-mark { width: 28px; height: 28px; background: rgba(0,229,160,0.1); color: var(--primary); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 14px; flex-shrink: 0; }
.faq-icon { position: relative; width: 16px; height: 16px; margin-left: auto; flex-shrink: 0; }
.faq-icon::before, .faq-icon::after { content: ''; position: absolute; background: var(--text-dim); transition: all .2s; }
.faq-icon::before { width: 16px; height: 2px; top: 7px; left: 0; }
.faq-icon::after { width: 2px; height: 16px; left: 7px; top: 0; }
.faq-item.open .faq-icon::after { transform: rotate(90deg); opacity: 0; }
.faq-item.open .faq-icon::before { background: var(--primary); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .25s ease; }
.faq-item.open .faq-a { max-height: 400px; }
.faq-a .inner { padding: 0 24px 24px 42px; border-left: 2px solid var(--primary); margin-left: 42px; padding-left: 20px; color: var(--text-dim); line-height: 1.75; font-size: 15px; }

.cta-section { position: relative; padding: 96px 0; }
.cta-inner { position: relative; background: linear-gradient(135deg, rgba(0,229,160,0.12), rgba(184,79,255,0.08)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat; border: 1px solid var(--line); border-radius: 24px; padding: 80px 40px; text-align: center; overflow: hidden; }
.cta-inner::before { content: ''; position: absolute; inset: 0; background: rgba(10,12,16,0.7); }
.cta-inner > * { position: relative; z-index: 1; }

.floating-cta { position: fixed; right: 24px; bottom: 24px; z-index: 60; }
.floating-btn { display: inline-flex; align-items: center; gap: 10px; background: var(--primary); color: #111; font-weight: 800; padding: 16px 28px; border-radius: 999px; box-shadow: 0 0 24px rgba(0,229,160,0.4); transition: all .3s; }
.floating-btn:hover { background: var(--primary-hover); transform: scale(1.04) translateY(-2px); }
.mobile-cta-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; display: flex; align-items: center; gap: 12px; padding: 12px 16px; background: var(--card); border-top: 1px solid var(--line); }
.mobile-cta-btn { flex: 1; background: var(--primary); color: #111; font-weight: 800; padding: 14px 20px; border-radius: 8px; text-align: center; }
.mobile-cta-close { width: 36px; height: 36px; color: var(--text-dim); font-size: 20px; line-height: 1; border: 1px solid var(--line); border-radius: 8px; }

.footer { background: var(--bg-soft); border-top: 2px solid var(--primary); padding: 64px 0 32px; }
.footer-title { font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.footer-links li { margin-bottom: 8px; }
.footer-links a { color: var(--text-dim); font-size: 14px; transition: color .2s; }
.footer-links a:hover { color: var(--primary); }
.form-input { width: 100%; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 10px 14px; color: var(--text); font-size: 14px; transition: border-color .2s; }
.form-input:focus { outline: none; border-color: var(--primary); }
.footer-bottom { border-top: 1px solid var(--line); margin-top: 32px; padding-top: 24px; }

@media (max-width: 1024px) {
  .section { padding-block: 72px; }
  .section-title { font-size: 32px; }
  .stat-num { font-size: 56px; }
  .price-card.featured { transform: scale(1.03); }
}
@media (max-width: 768px) {
  .section { padding-block: 56px; }
  .section-title { font-size: 26px; padding-left: 12px; }
  .section-head { margin-bottom: 40px; }
  .hero-img-frame { max-width: 100%; }
  .stat-num { font-size: 44px; }
  .stat-num span { font-size: 22px; }
  .price-card.featured { transform: none; }
  .news-card { grid-template-columns: 1fr; }
  .news-thumb { width: 100%; height: auto; aspect-ratio: 16/9; }
  .cta-inner { padding: 48px 24px; }
  .floating-cta { display: none !important; }
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
}
@media (max-width: 480px) {
  .container-x { padding-inline: 16px; }
  .channel-link { font-size: 13px; padding: 8px 12px; }
  .btn { font-size: 14px; }
  .faq-a .inner { margin-left: 28px; padding-left: 16px; }
}

/* roulang page: category1 */
:root {
    --bg: #0A0C10;
    --bg-soft: #11151E;
    --card: #141821;
    --line: rgba(255, 255, 255, 0.08);
    --primary: #00E5A0;
    --primary-hover: #2CF5B8;
    --accent: #B84FFF;
    --gold: #FFB84D;
    --text: #F2F5F7;
    --text-dim: #8A93A3;
    --radius: 16px;
    --radius-sm: 8px;
    --radius-xs: 4px;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    --shadow-primary: 0 12px 32px rgba(0, 229, 160, 0.12);
  }
  * { 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: var(--bg); color: var(--text); line-height: 1.75; -webkit-font-smoothing: antialiased; }
  a { color: var(--text); text-decoration: none; transition: color .2s ease, border-color .2s ease, background .2s ease; }
  a:hover { color: var(--primary); }
  a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; border-radius: 4px; }
  img { max-width: 100%; display: block; }
  button { font-family: inherit; cursor: pointer; }
  input, textarea { font-family: inherit; }

  .container-x { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
  @media (max-width: 640px) { .container-x { padding-left: 16px; padding-right: 16px; } }

  /* ===== Header & Nav ===== */
  .site-header { position: sticky; top: 0; z-index: 50; background: rgba(10, 12, 16, 0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
  .logo-mark { position: relative; display: inline-flex; width: 36px; height: 36px; background: var(--primary); border-radius: 10px; overflow: hidden; flex-shrink: 0; }
  .logo-mark::before { content: ""; position: absolute; inset: 7px; border: 2px solid #0A0C10; border-radius: 5px; }
  .logo-mark::after { content: ""; position: absolute; top: 50%; left: 50%; width: 12px; height: 2px; background: #0A0C10; transform: translate(-50%, -50%); }
  .search-box { display: flex; align-items: center; gap: 8px; background: var(--bg-soft); border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; transition: border-color .2s; }
  .search-box:focus-within { border-color: var(--primary); }
  .search-box input::placeholder { color: var(--text-dim); }
  .social-icon { display: inline-flex; width: 36px; height: 36px; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 8px; color: var(--text-dim); transition: all .2s ease; }
  .social-icon:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
  .channel-nav { border-top: 1px solid var(--line); scrollbar-width: none; }
  .channel-nav::-webkit-scrollbar { display: none; }
  .channel-link { display: inline-block; padding: 10px 16px; font-size: 14px; color: var(--text-dim); white-space: nowrap; border-bottom: 2px solid transparent; letter-spacing: .02em; transition: color .2s, border-color .2s; }
  .channel-link:hover { color: var(--accent); }
  .channel-link.active { color: var(--text); border-bottom-color: var(--primary); }

  /* ===== Buttons ===== */
  .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-size: 14px; font-weight: 700; border-radius: 8px; padding: 13px 28px; border: 1px solid transparent; transition: all .2s ease; line-height: 1.4; white-space: nowrap; }
  .btn-primary { background: var(--primary); color: #0A0C10; box-shadow: 0 4px 20px rgba(0, 229, 160, 0.18); }
  .btn-primary:hover { background: var(--primary-hover); color: #0A0C10; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0, 229, 160, 0.28); }
  .btn-primary:active { transform: translateY(0); box-shadow: 0 2px 10px rgba(0, 229, 160, 0.15); }
  .btn-outline { border: 1px solid rgba(255, 255, 255, 0.22); color: var(--text); background: transparent; }
  .btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
  .btn-outline:active { transform: translateY(0); }
  .btn-sm { padding: 8px 18px; font-size: 13px; border-radius: 8px; }
  .btn-block { width: 100%; }

  /* ===== Cards & Tags ===== */
  .card { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
  .card:hover { border-color: var(--primary); box-shadow: var(--shadow-primary); transform: translateY(-2px); }
  .l-corner { position: absolute; top: 14px; left: 14px; width: 24px; height: 24px; pointer-events: none; z-index: 2; opacity: 0.9; }
  .l-corner::before { content: ""; position: absolute; top: 0; left: 0; width: 24px; height: 1px; background: var(--primary); }
  .l-corner::after { content: ""; position: absolute; top: 0; left: 0; width: 1px; height: 24px; background: var(--primary); }
  .tag { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: var(--radius-xs); font-size: 13px; font-weight: 600; background: rgba(0, 229, 160, 0.08); color: var(--primary); border: 1px solid rgba(0, 229, 160, 0.2); }
  .gold-badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 16px; background: var(--gold); color: #0A0C10; font-size: 13px; font-weight: 800; border-radius: var(--radius-xs); letter-spacing: .06em; }

  /* ===== Sections ===== */
  .section { padding: 90px 0; position: relative; }
  .section.bg-soft { background: var(--bg-soft); }
  .section-head { margin-bottom: 48px; }
  .section-kicker { display: block; width: 32px; height: 4px; background: var(--primary); border-radius: 2px; margin-bottom: 16px; }
  .section-title { font-size: 36px; font-weight: 800; line-height: 1.2; letter-spacing: .01em; }
  .section-note { font-size: 14px; color: var(--text-dim); }
  @media (max-width: 768px) {
    .section { padding: 60px 0; }
    .section-title { font-size: 26px; }
  }

  /* ===== Page Hero ===== */
  .page-hero { position: relative; min-height: 460px; display: flex; align-items: center; overflow: hidden; background-size: cover; background-position: center; padding: 72px 0; isolation: isolate; }
  .page-hero::before { content: ""; position: absolute; inset: 0; background: rgba(10, 12, 16, 0.72); z-index: -2; }
  .page-hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(100deg, rgba(10,12,16,0.85) 0%, rgba(10,12,16,0.45) 58%, transparent 100%); }
  .hero-grid-overlay { position: absolute; inset: 0; z-index: -1; background-image: linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px); background-size: 44px 44px; }
  .hero-light-beam { position: absolute; top: -20%; right: 0; width: 46%; height: 160%; background: linear-gradient(120deg, transparent 0%, rgba(0, 229, 160, 0.06) 35%, rgba(184, 79, 255, 0.04) 70%, transparent 100%); z-index: -1; transform: rotate(-30deg) translateX(20%); }
  .page-hero h1 { font-size: 56px; font-weight: 900; line-height: 1.12; letter-spacing: .01em; margin: 20px 0 18px; }
  .page-hero h1 .brand-hl { color: var(--primary); }
  .page-hero .hero-sub { font-size: 16px; line-height: 1.8; color: rgba(242, 245, 247, 0.82); max-width: 560px; margin-bottom: 28px; }
  .hero-trust { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 30px; }
  .hero-trust-item { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-dim); }
  .hero-trust-item svg { width: 18px; height: 18px; color: var(--primary); }
  @media (max-width: 768px) {
    .page-hero { min-height: 420px; padding: 52px 0; }
    .page-hero h1 { font-size: 32px; }
    .page-hero .hero-sub { font-size: 14px; }
    .page-hero .btn { padding: 11px 20px; font-size: 13px; }
  }

  /* ===== Overview (分类介绍) ===== */
  .overview-media { border-radius: var(--radius); overflow: hidden; position: relative; border: 1px solid var(--line); background: var(--card); }
  .overview-media::after { content: ""; position: absolute; inset: 0; border: 1px solid rgba(0, 229, 160, 0.5); border-radius: var(--radius); opacity: 0.4; pointer-events: none; }
  .overview-media img { width: 100%; height: 100%; object-fit: cover; min-height: 240px; }
  .overview-media .iv-badge { position: absolute; left: 16px; bottom: 16px; z-index: 3; }
  .overview-copy p { font-size: 15px; line-height: 1.85; color: rgba(242, 245, 247, 0.85); margin-bottom: 18px; }

  /* ===== Feature Cards ===== */
  .guide-card { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
  .guide-card:hover { transform: translateY(-3px); border-color: var(--primary); box-shadow: var(--shadow-primary); }
  .guide-card .card-media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; border-bottom: 1px solid var(--line); }
  .guide-card .card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
  .guide-card:hover .card-media img { transform: scale(1.04); }
  .guide-card .card-body { padding: 24px 26px 26px; display: flex; flex-direction: column; flex: 1; }
  .guide-card h3 { font-size: 20px; font-weight: 700; line-height: 1.4; margin-bottom: 10px; }
  .guide-card p { font-size: 14px; color: var(--text-dim); line-height: 1.7; margin-bottom: 18px; }
  .guide-card .card-link { margin-top: auto; display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--primary); }
  .guide-card .card-link:hover { color: var(--primary-hover); text-decoration: underline; text-underline-offset: 4px; }
  .guide-card .card-link svg { width: 16px; height: 16px; transition: transform .2s; }
  .guide-card .card-link:hover svg { transform: translateX(3px); }
  @media (max-width: 768px) { .guide-card h3 { font-size: 18px; } }

  /* ===== Steps ===== */
  .step-item { position: relative; padding: 28px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); height: 100%; transition: border-color .25s, transform .25s, box-shadow .25s; }
  .step-item:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: 0 12px 30px rgba(184, 79, 255, 0.08); }
  .step-num { font-family: "Rajdhani", "Barlow Condensed", sans-serif; font-size: 44px; font-weight: 700; color: rgba(0, 229, 160, 0.14); line-height: 1; margin-bottom: 14px; }
  .step-item h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
  .step-item p { font-size: 14px; color: var(--text-dim); line-height: 1.75; }
  .step-divider { display: none; }

  /* ===== Link Matrix ===== */
  .link-tile { display: flex; align-items: center; gap: 14px; padding: 20px 22px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); transition: border-color .2s, background .2s, transform .2s; }
  .link-tile:hover { border-color: var(--primary); background: rgba(0, 229, 160, 0.04); transform: translateY(-2px); }
  .link-tile .tile-icon { display: inline-flex; width: 42px; height: 42px; align-items: center; justify-content: center; border-radius: 10px; background: rgba(0, 229, 160, 0.07); color: var(--primary); flex-shrink: 0; transition: transform .2s; }
  .link-tile:hover .tile-icon { transform: scale(1.08); color: var(--accent); }
  .link-tile .tile-icon svg { width: 22px; height: 22px; }
  .link-tile .tile-name { font-size: 16px; font-weight: 700; }
  .link-tile .tile-desc { font-size: 13px; color: var(--text-dim); }
  @media (max-width: 640px) { .link-tile { padding: 16px 14px; } }

  /* ===== FAQ ===== */
  .faq-wrap { max-width: 820px; margin: 0 auto; }
  .faq-item { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); margin-bottom: 14px; overflow: hidden; transition: border-color .2s; }
  .faq-item.open { border-color: rgba(0, 229, 160, 0.4); }
  .faq-q { width: 100%; display: flex; align-items: center; gap: 14px; padding: 20px 24px; background: transparent; border: none; text-align: left; color: var(--text); font-size: 15px; font-weight: 600; transition: background .2s; }
  .faq-q:hover { background: rgba(255, 255, 255, 0.02); }
  .faq-q .q-mark { color: var(--primary); font-weight: 800; font-size: 17px; flex-shrink: 0; }
  .faq-q .q-icon { margin-left: auto; width: 20px; height: 20px; position: relative; flex-shrink: 0; transition: transform .2s ease; }
  .faq-q .q-icon::before, .faq-q .q-icon::after { content: ""; position: absolute; background: var(--text-dim); transition: background .2s; }
  .faq-q .q-icon::before { top: 9px; left: 0; width: 20px; height: 2px; }
  .faq-q .q-icon::after { top: 0; left: 9px; width: 2px; height: 20px; }
  .faq-item.open .faq-q .q-icon { transform: rotate(45deg); }
  .faq-item.open .faq-q .q-icon::before, .faq-item.open .faq-q .q-icon::after { background: var(--primary); }
  .faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
  .faq-a-inner { padding: 0 24px 22px 56px; font-size: 14px; line-height: 1.8; color: var(--text-dim); border-left: 2px solid var(--primary); margin-left: 24px; }
  .faq-item.open .faq-a { max-height: 300px; }
  @media (max-width: 640px) {
    .faq-q { padding: 16px; font-size: 14px; }
    .faq-a-inner { padding: 0 14px 18px 14px; margin-left: 16px; }
  }

  /* ===== CTA Banner ===== */
  .cta-banner { position: relative; padding: 80px 0; background: var(--bg-soft); border-top: 1px solid var(--line); overflow: hidden; }
  .cta-banner::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(0, 229, 160, 0.05), transparent 45%); }
  .cta-banner::after { content: ""; position: absolute; top: -60px; right: -40px; width: 260px; height: 260px; border: 1px solid rgba(184, 79, 255, 0.2); border-radius: 50%; }
  .cta-title { font-size: 34px; font-weight: 800; line-height: 1.25; margin-bottom: 14px; }
  .cta-sub { color: var(--text-dim); font-size: 15px; max-width: 560px; }
  @media (max-width: 768px) { .cta-title { font-size: 24px; } .cta-banner { padding: 56px 0; } }

  /* ===== Footer ===== */
  .footer { background: var(--bg-soft); border-top: 3px solid var(--primary); padding: 48px 0 28px; }
  .footer-title { font-size: 15px; font-weight: 700; margin-bottom: 16px; letter-spacing: .04em; color: var(--text); }
  .footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
  .footer-links a { font-size: 14px; color: var(--text-dim); transition: color .2s, padding-left .2s; }
  .footer-links a:hover { color: var(--primary); padding-left: 4px; }
  .form-input { width: 100%; padding: 10px 14px; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; color: var(--text); font-size: 14px; transition: border-color .2s; }
  .form-input:focus { outline: none; border-color: var(--primary); }
  .form-input::placeholder { color: var(--text-dim); }
  .footer-bottom { border-top-color: var(--line) !important; }

  /* ===== Breadcrumb ===== */
  .breadcrumb { padding: 18px 0 0; font-size: 13px; color: var(--text-dim); }
  .breadcrumb a { color: var(--text-dim); }
  .breadcrumb a:hover { color: var(--primary); }
  .breadcrumb span.sep { margin: 0 10px; opacity: .5; }

  /* ===== Utility ===== */
  .text-primary { color: var(--primary); }
  .text-dim { color: var(--text-dim); }
  .text-gold { color: var(--gold); }
  .bg-soft { background: var(--bg-soft); }
  .hidden { display: none; }
  @media (min-width: 1024px) { .lg\:flex { display: flex; } }

  /* ===== Tailwind CDN fallback 细节修正 ===== */
  .text-ink { color: var(--text); }
  .text-ink-dim { color: var(--text-dim); }
  .placeholder\:text-dim::placeholder { color: var(--text-dim); }
  .btn-sm { padding: 8px 18px; font-size: 13px; border-radius: 8px; }
  .border-line { border-color: var(--line); }

  /* 响应式修正 */
  @media (max-width: 768px) {
    .page-hero h1 { font-size: 34px; }
    .section-gap { padding-top: 60px; padding-bottom: 60px; }
    .cta-title { font-size: 24px; }
    .guide-card .card-body { padding: 18px 16px 20px; }
  }
  @media (max-width: 520px) {
    .page-hero h1 { font-size: 28px; }
    .page-hero .btn { width: 100%; }
    .page-hero .hero-ctas { display: flex; flex-direction: column; gap: 12px; width: 100%; }
    .brand-text-lg { font-size: 16px !important; }
  }

/* roulang page: article */
:root {
  --bg: #0A0C10;
  --bg-soft: #11151E;
  --card: #141821;
  --line: rgba(255,255,255,0.08);
  --primary: #00E5A0;
  --primary-hover: #2CF5B8;
  --accent: #B84FFF;
  --gold: #FFB84D;
  --text: #F2F5F7;
  --text-dim: #8A93A3;
  --radius-card: 16px;
  --radius-btn: 8px;
  --shadow-card: 0 8px 24px rgba(0,0,0,0.25);
  --shadow-card-hover: 0 12px 32px rgba(0,229,160,0.12);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
.container-x { width: min(1200px, 100% - 48px); margin-inline: auto; }
::selection { background: rgba(0,229,160,0.25); color: #fff; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,12,16,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.logo-mark {
  position: relative;
  display: block;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 0 18px rgba(0,229,160,0.18);
}
.logo-mark::after {
  content: "";
  position: absolute;
  inset: 3px;
  border: 1px solid rgba(255,255,255,0.55);
  border-radius: 7px;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: border-color .2s ease;
}
.search-box:focus-within { border-color: var(--primary); }
.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text-dim);
  transition: all .2s ease;
}
.social-icon:hover { border-color: var(--primary); color: var(--primary); }
.social-icon:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.channel-nav { display: flex; }
.channel-nav .flex { scrollbar-width: none; }
.channel-nav .flex::-webkit-scrollbar { display: none; }
.channel-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--text-dim);
  border-bottom: 2px solid transparent;
  border-radius: 6px 6px 0 0;
  white-space: nowrap;
  transition: color .2s ease, border-color .2s ease;
}
.channel-link:hover { color: var(--accent); }
.channel-link.active { color: var(--text); border-bottom-color: var(--primary); }
.channel-link:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-btn);
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: none;
  transition: all .25s ease;
}
.btn:focus-visible, .share-btn:focus-visible, .pager-link:focus-visible, .related-card:focus-visible, .channel-link:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.btn-primary { background: var(--primary); color: #06110C; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,229,160,0.25); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { background: transparent; border: 1px solid var(--line); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-outline:active { transform: scale(0.98); }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }

/* Article Hero */
.article-hero {
  position: relative;
  padding: 64px 0 56px;
  border-bottom: 1px solid var(--line);
  background-image: linear-gradient(180deg, rgba(10,12,16,0.80), rgba(10,12,16,0.94)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
}
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 13px; color: var(--text-dim); }
.breadcrumb a { transition: color .2s; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb-sep { color: rgba(255,255,255,0.3); }
.breadcrumb-current { color: var(--text-dim); max-width: 420px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.article-category {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: rgba(184,79,255,0.12);
  border: 1px solid rgba(184,79,255,0.3);
  border-radius: 4px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.article-hero h1 {
  font-size: 42px;
  line-height: 1.22;
  font-weight: 900;
  color: var(--text);
  margin: 20px 0 20px;
  letter-spacing: 0.01em;
}
.article-meta { display: flex; flex-wrap: wrap; gap: 18px; color: var(--text-dim); font-size: 14px; }
.meta-item { display: inline-flex; align-items: center; gap: 6px; }
.meta-item svg { width: 15px; height: 15px; color: var(--primary); }

/* Article Content */
.article-content { padding: 56px 0 32px; }
.article-inner { max-width: 760px; margin: 0 auto; }
.article-body {
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
  word-break: break-word;
}
.article-body h2 {
  font-size: 26px;
  font-weight: 800;
  line-height: 1.3;
  margin: 46px 0 18px;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
}
.article-body h3 { font-size: 21px; font-weight: 700; margin: 34px 0 14px; }
.article-body h4 { font-size: 18px; font-weight: 700; margin: 24px 0 10px; }
.article-body p { margin: 18px 0; color: rgba(242,245,247,0.92); }
.article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--primary-hover); }
.article-body ul, .article-body ol { margin: 18px 0; padding-left: 1.5em; display: grid; gap: 8px; }
.article-body ul li::marker { color: var(--primary); }
.article-body ol li::marker { color: var(--accent); font-weight: 700; }
.article-body img { max-width: 100%; height: auto; border-radius: 12px; margin: 24px 0; border: 1px solid var(--line); }
.article-body figure { margin: 28px 0; }
.article-body figcaption { font-size: 13px; color: var(--text-dim); text-align: center; margin-top: 10px; }
.article-body blockquote { margin: 28px 0; padding: 18px 22px; background: var(--bg-soft); border-left: 3px solid var(--primary); border-radius: 0 12px 12px 0; color: var(--text-dim); }
.article-body table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.article-body th, .article-body td { padding: 10px 12px; border: 1px solid var(--line); text-align: left; }
.article-body th { background: var(--bg-soft); font-weight: 700; }
.article-body code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 14px; background: var(--bg-soft); border: 1px solid var(--line); padding: 2px 6px; border-radius: 4px; }
.article-body pre { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 12px; padding: 18px; overflow-x: auto; margin: 24px 0; }
.article-body pre code { background: none; border: none; padding: 0; }
.article-body hr { border: none; border-top: 1px solid var(--line); margin: 40px 0; }

/* Empty State */
.article-empty { max-width: 640px; margin: 0 auto; text-align: center; padding: 70px 0 60px; }
.empty-icon {
  position: relative;
  width: 56px;
  height: 56px;
  margin: 0 auto 22px;
  border: 1px dashed rgba(255,255,255,0.22);
  border-radius: 16px;
  background: var(--card);
}
.empty-icon::before,
.empty-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 22px;
  height: 2px;
  background: var(--primary);
}
.empty-icon::before { transform: translate(-50%, -50%) rotate(45deg); }
.empty-icon::after { transform: translate(-50%, -50%) rotate(-45deg); }
.article-empty h2 { font-size: 26px; font-weight: 800; margin-bottom: 12px; }
.article-empty p { color: var(--text-dim); font-size: 15px; margin-bottom: 26px; }

/* Article End */
.article-end { padding: 24px 0 8px; }
.article-end-box {
  max-width: 760px;
  margin: 0 auto;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}
.tag-item {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  background: rgba(0,229,160,0.08);
  border: 1px solid rgba(0,229,160,0.2);
  color: var(--primary);
  border-radius: 4px;
  font-size: 13px;
  transition: all .2s;
}
.tag-item:hover { background: rgba(0,229,160,0.14); }
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text-dim);
  font-size: 13px;
  cursor: pointer;
  transition: all .2s ease;
}
.share-btn:hover { border-color: var(--primary); color: var(--primary); }
.share-btn:active { transform: scale(0.96); }
.share-btn svg { width: 15px; height: 15px; }

/* Pager */
.post-pager {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 0 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.pager-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  transition: all .2s ease;
}
.pager-link:hover { border-color: var(--primary); transform: translateY(-2px); }
.pager-link.disabled { opacity: 0.5; pointer-events: none; }
.pager-label { font-size: 12px; color: var(--text-dim); }
.pager-title { font-size: 15px; font-weight: 600; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Related */
.related-section { padding: 56px 0 8px; }
.section-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 28px; }
.section-head h3 {
  font-size: 26px;
  font-weight: 800;
  color: var(--text);
}
.section-head h3::before {
  content: "";
  display: block;
  width: 32px;
  height: 4px;
  background: var(--primary);
  margin-bottom: 10px;
}
.section-note { font-size: 14px; color: var(--text-dim); }
.related-card {
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all .25s ease;
}
.related-card:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-card-hover); }
.related-card:active { transform: translateY(0); }
.related-thumb { overflow: hidden; }
.related-thumb img { width: 100%; aspect-ratio: 16/10; object-fit: cover; transition: transform .3s ease; }
.related-card:hover .related-thumb img { transform: scale(1.03); }
.related-title { font-size: 16px; font-weight: 700; color: var(--text); line-height: 1.45; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-excerpt { font-size: 14px; color: var(--text-dim); line-height: 1.6; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-time { font-size: 13px; color: var(--text-dim); }

/* CTA */
.article-cta {
  position: relative;
  overflow: hidden;
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  margin-top: 40px;
  padding: 72px 0;
}
.article-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(0,229,160,0.08) 0%, transparent 45%), radial-gradient(circle at 85% 20%, rgba(184,79,255,0.07) 0%, transparent 45%);
}
.article-cta-inner { position: relative; z-index: 1; max-width: 680px; margin: 0 auto; text-align: center; }
.cta-kicker {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(255,184,77,0.12);
  border: 1px solid rgba(255,184,77,0.3);
  color: var(--gold);
  font-size: 13px;
  font-weight: 600;
  border-radius: 4px;
  letter-spacing: 0.08em;
}
.article-cta-inner h2 { font-size: 32px; font-weight: 800; margin: 20px 0 14px; color: var(--text); }
.article-cta-inner h2::before { content: ""; display: block; width: 32px; height: 4px; background: var(--primary); margin: 0 auto 16px; }
.article-cta-inner p { font-size: 15px; color: var(--text-dim); line-height: 1.75; }

/* Footer */
.footer { background: var(--bg-soft); border-top: 1px solid var(--primary); padding: 64px 0 0; }
.footer-title { font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 16px; }
.footer-links { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-links a { color: var(--text-dim); font-size: 14px; transition: all .2s ease; }
.footer-links a:hover { color: var(--primary); padding-left: 4px; }
.footer-links a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.form-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
  transition: border-color .2s ease;
}
.form-input::placeholder { color: var(--text-dim); }
.form-input:focus { outline: none; border-color: var(--primary); }
.footer-bottom { padding-bottom: 28px; }
.footer-bottom a:hover { color: var(--primary); }

/* Floating CTA */
.fab-download {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 99;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  background: var(--primary);
  color: #06110C;
  font-size: 15px;
  font-weight: 700;
  border-radius: 999px;
  box-shadow: 0 0 26px rgba(0,229,160,0.4);
  transition: all .25s ease;
}
.fab-download:hover { background: var(--primary-hover); transform: scale(1.04); box-shadow: 0 0 34px rgba(0,229,160,0.55); }
.fab-download:active { transform: scale(0.98); }
.fab-download:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
.fab-download svg { width: 17px; height: 17px; }

.mobile-cta-bar {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 98;
  align-items: center;
  gap: 10px;
  padding: 14px 16px calc(14px + env(safe-area-inset-bottom));
  background: rgba(20,24,33,0.96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--line);
  transform: translateY(120%);
  transition: transform .3s ease;
}
.mobile-cta-main {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 16px;
  background: var(--primary);
  color: #06110C;
  font-weight: 700;
  border-radius: 8px;
  font-size: 15px;
  transition: background .2s;
}
.mobile-cta-main:hover { background: var(--primary-hover); }
.mobile-cta-main:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.mobile-cta-close {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text-dim);
  font-size: 18px;
  background: transparent;
  cursor: pointer;
  transition: all .2s;
}
.mobile-cta-close:hover { border-color: var(--primary); color: var(--primary); }

/* Responsive */
@media (max-width: 1024px) {
  .article-hero h1 { font-size: 36px; }
  .article-cta-inner h2 { font-size: 28px; }
  .container-x { width: min(100% - 40px, 1200px); }
}
@media (max-width: 768px) {
  .container-x { width: min(100% - 32px, 1200px); }
  .article-hero { padding: 48px 0 40px; }
  .article-hero h1 { font-size: 30px; margin-top: 16px; }
  .article-content { padding: 40px 0 24px; }
  .article-cta { padding: 56px 0; }
  .post-pager { grid-template-columns: 1fr; }
  .fab-download { display: none; }
  .mobile-cta-bar { display: flex; }
  .section-head { flex-direction: column; gap: 4px; }
}
@media (max-width: 520px) {
  .article-hero h1 { font-size: 27px; }
  .article-meta { gap: 12px; row-gap: 8px; font-size: 13px; }
  .article-body { font-size: 15px; line-height: 1.8; }
  .article-body h2 { font-size: 23px; }
  .article-cta-inner h2 { font-size: 24px; }
  .article-end-box { flex-direction: column; align-items: flex-start; }
}

/* roulang page: category2 */
:root {
    --bg: #0A0C10;
    --bg-soft: #11151E;
    --card: #141821;
    --line: rgba(255,255,255,0.08);
    --primary: #00E5A0;
    --primary-hover: #2CF5B8;
    --accent: #B84FFF;
    --gold: #FFB84D;
    --text: #F2F5F7;
    --text-dim: #8A93A3;
    --radius-card: 16px;
    --radius-btn: 8px;
    --radius-tag: 4px;
    --shadow-card: 0 8px 24px rgba(0,0,0,0.25);
    --shadow-card-hover: 0 12px 32px rgba(0,229,160,0.12);
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    font-size: 15px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }

  a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
  }

  a:focus-visible,
  button:focus-visible,
  input:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
  }

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

  button {
    font-family: inherit;
  }

  .container-x {
    max-width: 1240px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  /* ===== 页头 ===== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 12, 16, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
  }

  .logo-mark {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary) 0%, #00b97f 60%, var(--accent) 100%);
    display: inline-block;
    position: relative;
    flex-shrink: 0;
  }

  .logo-mark::after {
    content: "游";
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0A0C10;
    font-weight: 900;
    font-size: 18px;
  }

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

  .placeholder-dim {
    color: var(--text-dim);
  }

  .search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: var(--radius-btn);
    padding: 8px 14px;
    color: var(--text-dim);
    transition: border-color 0.2s ease;
  }

  .search-box:focus-within {
    border-color: var(--primary);
  }

  .social-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid var(--line);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dim);
    transition: border-color 0.2s ease, color 0.2s ease;
  }

  .social-icon:hover {
    border-color: var(--primary);
    color: var(--primary);
  }

  .channel-nav {
    border-top: 1px solid var(--line);
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .channel-nav .flex {
    scrollbar-width: none;
  }

  .channel-nav .flex::-webkit-scrollbar {
    display: none;
  }

  .channel-link {
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dim);
    transition: color 0.2s ease, background-color 0.2s ease;
    position: relative;
    flex-shrink: 0;
  }

  .channel-link:hover {
    color: var(--accent);
    background: rgba(184, 79, 255, 0.08);
  }

  .channel-link.active {
    color: var(--text);
  }

  .channel-link.active::after {
    content: "";
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 2px;
    height: 2px;
    border-radius: 2px;
    background: var(--primary);
  }

  /* ===== 按钮 ===== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: var(--radius-btn);
    font-weight: 700;
    font-size: 15px;
    padding: 12px 24px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    white-space: nowrap;
  }

  .btn-primary {
    background: var(--primary);
    color: #0A0C10;
  }

  .btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 229, 160, 0.25);
  }

  .btn-primary:active {
    transform: translateY(0);
  }

  .btn-outline {
    background: transparent;
    border-color: var(--line);
    color: var(--text);
  }

  .btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
  }

  .btn-outline:active {
    transform: translateY(0);
  }

  .btn-sm {
    padding: 8px 18px;
    font-size: 14px;
  }

  .btn-lg {
    padding: 16px 36px;
    font-size: 17px;
  }

  /* ===== 区块通用 ===== */
  .section {
    padding: 88px 0;
  }

  .section-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .section-label::before {
    content: "";
    width: 24px;
    height: 2px;
    background: var(--primary);
  }

  .section-title {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.2;
    margin-top: 14px;
    letter-spacing: -0.02em;
  }

  .section-sub {
    color: var(--text-dim);
    font-size: 14px;
    margin-top: 8px;
  }

  .card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
  }

  .card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-2px);
  }

  .l-corner {
    position: relative;
  }

  .l-corner::before,
  .l-corner::after {
    content: "";
    position: absolute;
    background: var(--primary);
  }

  .l-corner::before {
    top: -1px;
    left: -1px;
    width: 24px;
    height: 1px;
  }

  .l-corner::after {
    top: -1px;
    left: -1px;
    width: 1px;
    height: 24px;
  }

  .tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(0, 229, 160, 0.1);
    border: 1px solid rgba(0, 229, 160, 0.25);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    border-radius: var(--radius-tag);
    padding: 4px 12px;
  }

  .gold-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--gold);
    color: #0A0C10;
    font-size: 13px;
    font-weight: 700;
    border-radius: var(--radius-tag);
    padding: 4px 12px;
  }

  /* ===== 分类Hero ===== */
  .category-hero {
    position: relative;
    padding: 96px 0 88px;
    background-image:
      linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 32px 32px;
    background-color: var(--bg);
    overflow: hidden;
    border-bottom: 1px solid var(--line);
  }

  .category-hero::before {
    content: "";
    position: absolute;
    top: -30%;
    right: -10%;
    width: 55%;
    height: 160%;
    background: linear-gradient(30deg, transparent, rgba(0, 229, 160, 0.5));
    transform: rotate(30deg);
    opacity: 0.06;
    pointer-events: none;
  }

  .category-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10, 12, 16, 0.72) 0%, rgba(10, 12, 16, 0.4) 50%, rgba(10, 12, 16, 0.9) 100%);
    pointer-events: none;
  }

  .category-hero .hero-content {
    position: relative;
    z-index: 2;
  }

  .hero-title {
    font-size: 60px;
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: 0.02em;
    margin-top: 18px;
  }

  .hero-sub {
    font-size: 17px;
    color: var(--text-dim);
    max-width: 520px;
    margin-top: 18px;
    line-height: 1.8;
  }

  .hero-actions {
    display: flex;
    gap: 14px;
    margin-top: 32px;
    flex-wrap: wrap;
  }

  /* ===== 分类介绍区 ===== */
  .category-intro {
    background: var(--bg);
  }

  .intro-card {
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: 20px;
    overflow: hidden;
  }

  .intro-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 260px;
  }

  .intro-body {
    padding: 40px;
  }

  .intro-body h2 {
    font-size: 30px;
    font-weight: 800;
    line-height: 1.25;
    margin: 14px 0 18px;
  }

  .intro-body p {
    color: var(--text-dim);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 16px;
  }

  .intro-body p strong {
    color: var(--text);
    font-weight: 600;
  }

  /* ===== 精选内容区 ===== */
  .featured-section {
    background: var(--bg-soft);
  }

  .featured-card {
    position: relative;
    display: block;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    overflow: hidden;
    transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  }

  .featured-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-3px);
  }

  .featured-card .thumb {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
  }

  .featured-card .thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
  }

  .featured-card:hover .thumb img {
    transform: scale(1.04);
  }

  .featured-card .thumb .badge-corner {
    position: absolute;
    top: 14px;
    left: 14px;
  }

  .featured-card .body {
    padding: 24px;
  }

  .featured-card .body h3 {
    font-size: 19px;
    font-weight: 700;
    margin: 10px 0 8px;
    line-height: 1.4;
  }

  .featured-card .body p {
    color: var(--text-dim);
    font-size: 14px;
    line-height: 1.7;
  }

  .featured-card .readmore {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    margin-top: 16px;
    transition: color 0.2s ease;
  }

  .featured-card .readmore:hover {
    color: var(--accent);
  }

  /* ===== 特性卖点区 ===== */
  .feature-list {
    background: var(--bg);
  }

  .feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    margin-top: 40px;
  }

  .feature-item {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 28px;
    transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
  }

  .feature-item:nth-child(1),
  .feature-item:nth-child(3),
  .feature-item:nth-child(5) {
    transform: translateY(12px);
  }

  .feature-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(4px);
  }

  .feature-item:nth-child(1):hover,
  .feature-item:nth-child(3):hover,
  .feature-item:nth-child(5):hover {
    transform: translateY(2px);
  }

  .feature-item .icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(0, 229, 160, 0.1);
    border: 1px solid rgba(0, 229, 160, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    transition: background-color 0.25s ease, color 0.25s ease;
  }

  .feature-item:hover .icon {
    background: var(--primary);
    color: #0A0C10;
  }

  .feature-item h3 {
    font-size: 18px;
    font-weight: 700;
    margin: 20px 0 10px;
  }

  .feature-item p {
    color: var(--text-dim);
    font-size: 14px;
    line-height: 1.7;
  }

  .feature-item .bar {
    width: 24px;
    height: 2px;
    background: var(--primary);
    margin-top: 18px;
  }

  /* ===== 适用场景 ===== */
  .scene-section {
    background: var(--bg-soft);
  }

  .scene-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
  }

  .scene-item {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 36px 30px;
    text-align: center;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
  }

  .scene-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-card-hover);
  }

  .scene-item .num {
    font-family: "Rajdhani", "Barlow Condensed", sans-serif;
    font-size: 60px;
    font-weight: 700;
    color: rgba(0, 229, 160, 0.3);
    line-height: 1;
  }

  .scene-item h3 {
    font-size: 20px;
    font-weight: 700;
    margin: 14px 0 10px;
  }

  .scene-item p {
    color: var(--text-dim);
    font-size: 14px;
    line-height: 1.7;
  }

  /* ===== 补充栏目矩阵 ===== */
  .subnav-section {
    background: var(--bg);
  }

  .subnav-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
    margin-top: 40px;
  }

  .subnav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 26px 14px;
    text-align: center;
    transition: border-color 0.25s ease, transform 0.25s ease;
  }

  .subnav-item:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
  }

  .subnav-item .icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: rgba(184, 79, 255, 0.1);
    border: 1px solid rgba(184, 79, 255, 0.18);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
  }

  .subnav-item span {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
  }

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

  .faq-inner {
    max-width: 760px;
    margin: 0 auto;
    margin-top: 40px;
  }

  .faq-item {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color 0.2s ease;
  }

  .faq-item.open {
    border-color: rgba(0, 229, 160, 0.4);
  }

  .faq-q {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 20px 22px;
    cursor: pointer;
    user-select: none;
    font-size: 16px;
    font-weight: 600;
  }

  .faq-q .q-icon {
    color: var(--primary);
    font-weight: 800;
    font-size: 16px;
  }

  .faq-q .arrow {
    margin-left: auto;
    width: 14px;
    height: 14px;
    position: relative;
    flex-shrink: 0;
    transition: transform 0.2s ease;
  }

  .faq-q .arrow::before,
  .faq-q .arrow::after {
    content: "";
    position: absolute;
    background: var(--text-dim);
    transition: background-color 0.2s ease;
  }

  .faq-q .arrow::before {
    width: 14px;
    height: 2px;
    top: 6px;
    left: 0;
  }

  .faq-q .arrow::after {
    width: 2px;
    height: 14px;
    top: 0;
    left: 6px;
  }

  .faq-item.open .arrow {
    transform: rotate(45deg);
  }

  .faq-item.open .arrow::before,
  .faq-item.open .arrow::after {
    background: var(--primary);
  }

  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  .faq-a-inner {
    padding: 0 22px 22px 52px;
    color: var(--text-dim);
    font-size: 14px;
    line-height: 1.8;
    border-left: 2px solid var(--primary);
    margin-left: 22px;
  }

  /* ===== CTA ===== */
  .cta-section {
    background: var(--bg);
    padding: 88px 0;
    position: relative;
    overflow: hidden;
  }

  .cta-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
  }

  .cta-box {
    max-width: 780px;
    margin: 0 auto;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 56px 40px;
    text-align: center;
    position: relative;
  }

  .cta-box .l-corner::before,
  .cta-box .l-corner::after {
    background: var(--primary);
  }

  .cta-box h2 {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.25;
  }

  .cta-box p {
    color: var(--text-dim);
    margin-top: 14px;
    font-size: 15px;
  }

  .cta-box .btn {
    margin-top: 28px;
  }

  /* ===== 页脚 ===== */
  .footer {
    background: var(--bg-soft);
    border-top: 1px solid var(--line);
    padding: 64px 0 28px;
  }

  .footer-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
    position: relative;
    padding-bottom: 8px;
  }

  .footer-title::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 20px;
    height: 2px;
    background: var(--primary);
  }

  .footer-links {
    list-style: none;
  }

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

  .footer-links a {
    color: var(--text-dim);
    font-size: 14px;
    transition: color 0.2s ease;
  }

  .footer-links a:hover {
    color: var(--primary);
  }

  .form-input {
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: var(--radius-btn);
    color: var(--text);
    font-size: 14px;
    padding: 12px 14px;
    width: 100%;
    outline: none;
    transition: border-color 0.2s ease;
  }

  .form-input::placeholder {
    color: var(--text-dim);
  }

  .form-input:focus {
    border-color: var(--primary);
  }

  .footer-bottom {
    border-top: 1px solid var(--line);
    margin-top: 48px;
    padding-top: 24px;
    color: var(--text-dim);
    font-size: 13px;
  }

  /* ===== 浮动CTA ===== */
  .float-cta {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 200;
    border-radius: 40px;
    padding: 14px 26px;
    font-size: 15px;
    font-weight: 700;
    background: var(--primary);
    color: #0A0C10;
    box-shadow: 0 8px 30px rgba(0, 229, 160, 0.35);
    transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    border: none;
    cursor: pointer;
    display: none;
  }

  .float-cta:hover {
    background: var(--primary-hover);
    transform: scale(1.04);
    box-shadow: 0 12px 36px rgba(0, 229, 160, 0.45);
  }

  .float-cta:active {
    transform: scale(1.01);
  }

  .float-cta.show {
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }

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

    .subnav-grid {
      grid-template-columns: repeat(3, 1fr);
    }

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

    .section {
      padding: 64px 0;
    }

    .hero-title {
      font-size: 46px;
    }

    .section-title {
      font-size: 30px;
    }
  }

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

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

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

    .category-hero {
      padding: 64px 0 56px;
    }

    .feature-grid {
      grid-template-columns: 1fr;
    }

    .feature-item:nth-child(1),
    .feature-item:nth-child(3),
    .feature-item:nth-child(5) {
      transform: translateY(0);
    }

    .feature-item:hover {
      transform: translateY(-2px);
    }

    .feature-item:nth-child(1):hover,
    .feature-item:nth-child(3):hover,
    .feature-item:nth-child(5):hover {
      transform: translateY(-2px);
    }

    .scene-grid {
      grid-template-columns: 1fr;
    }

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

    .intro-body {
      padding: 28px 24px;
    }

    .cta-box {
      padding: 40px 24px;
    }

    .cta-box h2 {
      font-size: 26px;
    }

    .float-cta {
      right: 16px;
      bottom: 16px;
      padding: 12px 20px;
      font-size: 14px;
    }
  }

  @media (max-width: 520px) {
    .hero-actions {
      flex-direction: column;
      align-items: stretch;
    }

    .hero-actions .btn {
      width: 100%;
    }

    .section-title {
      font-size: 26px;
    }

    .subnav-grid {
      grid-template-columns: 1fr 1fr;
    }

    .channel-link {
      padding: 8px 12px;
      font-size: 13px;
    }
  }