/* roulang page: index */
:root {
  --bg-primary: #070B12;
  --bg-secondary: #0D1320;
  --surface-glass: rgba(255,255,255,0.06);
  --border-glass: rgba(255,255,255,0.10);
  --border-glow: rgba(34,211,238,0.4);
  --primary: #2DD4EE;
  --secondary: #A3E635;
  --accent-lime: #FACC15;
  --text-hi: rgba(255,255,255,0.95);
  --text-mid: rgba(255,255,255,0.70);
  --text-low: rgba(255,255,255,0.45);
  --font-sans: PingFang SC, Hiragino Sans GB, Microsoft YaHei, sans-serif;
  --radius-card: 16px;
  --radius-btn: 12px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
  --glow-primary: 0 0 24px rgba(45,212,238,0.35);
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family:var(--font-sans);
  background:var(--bg-primary);
  color:var(--text-hi);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a { color:inherit; text-decoration:none; }
img { max-width:100%; display:block; }
button { font-family:inherit; }
.container-main { max-width:1200px; margin:0 auto; padding:0 24px; }
.section-pad { padding:96px 0; }
.section-pad-sm { padding:64px 0; }
.text-mid { color:var(--text-mid); }
.text-low { color:var(--text-low); }
.text-glow { color:var(--primary); }
.bg-secondary-block { background:var(--bg-secondary); }
.letter-tight { letter-spacing:-0.02em; }
.letter-nav { letter-spacing:0.08em; }

/* Nav */
.site-nav {
  position:fixed; top:0; left:0; right:0;
  height:72px;
  z-index:100;
  background:rgba(7,11,18,0.6);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,0.08);
  transition:background 0.3s ease;
}
.site-nav.scrolled {
  background:rgba(7,11,18,0.92);
  border-bottom-color:rgba(255,255,255,0.12);
}
.nav-logo {
  display:flex; align-items:center; gap:10px;
}
.nav-logo-mark {
  width:28px; height:28px; border-radius:8px;
  background:linear-gradient(135deg, var(--primary), var(--secondary));
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 0 16px rgba(45,212,238,0.3);
}
.nav-logo-mark .dot {
  width:10px; height:10px; border-radius:50%;
  background:#070B12;
}
.nav-logo-text {
  font-weight:700; font-size:1.05rem; color:#fff;
  letter-spacing:0.02em;
}
.nav-logo-tag {
  font-size:0.6rem; font-weight:500;
  color:rgba(255,255,255,0.5);
  border:1px solid rgba(255,255,255,0.2);
  padding:2px 8px; border-radius:999px;
  letter-spacing:0.1em;
}
.nav-links { display:flex; align-items:center; gap:32px; }
.nav-link {
  font-size:0.85rem;
  font-weight:500;
  color:var(--text-mid);
  letter-spacing:0.08em;
  padding:6px 0;
  position:relative;
  transition:color 0.2s;
}
.nav-link:hover { color:#fff; }
.nav-link.active { color:#fff; }
.nav-link.active::after {
  content:''; display:block; width:6px; height:6px;
  border-radius:50%;
  background:var(--primary);
  margin:4px auto 0;
  box-shadow:0 0 8px var(--primary);
}
.nav-cta {
  font-size:0.8rem;
  color:rgba(255,255,255,0.9);
  border:1px solid rgba(255,255,255,0.25);
  border-radius:999px;
  padding:8px 20px;
  letter-spacing:0.05em;
  background:transparent;
  transition:all 0.25s;
}
.nav-cta:hover {
  border-color:var(--primary);
  color:#fff;
  box-shadow:0 0 12px rgba(45,212,238,0.2);
}
.mobile-menu-btn {
  display:none;
  width:40px; height:40px;
  border:1px solid rgba(255,255,255,0.15);
  border-radius:10px;
  background:transparent;
  color:#fff;
  align-items:center; justify-content:center;
  cursor:pointer;
}
.mobile-drawer {
  display:none;
  position:fixed; top:72px; left:0; right:0;
  background:rgba(7,11,18,0.96);
  backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,0.08);
  padding:16px 24px 24px;
  z-index:99;
}
.mobile-drawer.open { display:block; }
.mobile-drawer a {
  display:block;
  padding:14px 0;
  color:var(--text-mid);
  border-bottom:1px solid rgba(255,255,255,0.05);
  font-size:0.95rem;
  letter-spacing:0.06em;
}
.mobile-drawer a:hover { color:#fff; }
.mobile-drawer a.active { color:var(--primary); }

/* Buttons */
.btn-primary {
  display:inline-flex; align-items:center; justify-content:center;
  background:linear-gradient(135deg, #2DD4EE, #A3E635);
  color:#0B0F1A;
  font-weight:700;
  font-size:1rem;
  padding:14px 36px;
  border-radius:var(--radius-btn);
  border:none;
  cursor:pointer;
  box-shadow:var(--glow-primary);
  transition:all 0.25s;
  letter-spacing:0.02em;
}
.btn-primary:hover {
  box-shadow:0 0 12px rgba(45,212,238,0.6);
  transform:translateY(-1px);
  filter:brightness(1.1);
}
.btn-primary:active { transform:translateY(1px); }
.btn-outline {
  display:inline-flex; align-items:center; justify-content:center;
  border:1px solid rgba(255,255,255,0.25);
  color:rgba(255,255,255,0.85);
  background:transparent;
  font-weight:500;
  font-size:0.9rem;
  padding:12px 28px;
  border-radius:var(--radius-btn);
  cursor:pointer;
  transition:all 0.25s;
}
.btn-outline:hover {
  background:rgba(255,255,255,0.06);
  border-color:var(--primary);
  color:#fff;
}
.btn-outline:focus-visible,
.btn-primary:focus-visible {
  outline:none;
  ring:2px solid rgba(45,212,238,0.5);
  box-shadow:0 0 0 4px rgba(45,212,238,0.2);
}

/* Cards */
.card-base {
  background:var(--bg-secondary);
  border:1px solid var(--border-glass);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:border-color 0.3s, box-shadow 0.3s, transform 0.3s;
  overflow:hidden;
}
.card-base:hover {
  border-color:var(--border-glow);
  box-shadow:0 0 24px rgba(34,211,238,0.15);
}
.glass-card {
  background:rgba(255,255,255,0.05);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:var(--radius-card);
  transition:all 0.3s;
}
.glass-card:hover {
  border-color:rgba(255,255,255,0.15);
}

/* Section Title */
.section-title {
  font-size:clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight:700;
  letter-spacing:0.02em;
  line-height:1.3;
  color:#fff;
}
.section-sub {
  font-size:0.75rem;
  letter-spacing:0.15em;
  color:var(--text-low);
  text-transform:uppercase;
}

/* Tag */
.tag {
  display:inline-flex; align-items:center;
  font-size:0.75rem;
  font-weight:500;
  color:var(--text-mid);
  background:rgba(255,255,255,0.08);
  border:1px solid rgba(255,255,255,0.12);
  border-radius:999px;
  padding:4px 12px;
  transition:all 0.2s;
}
.tag:hover {
  border-color:var(--primary);
  color:var(--primary);
}

/* Hero */
.hero-section {
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  padding-top:100px;
  padding-bottom:80px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero-section::before {
  content:'';
  position:absolute; inset:0;
  background:linear-gradient(90deg, #070B12 20%, rgba(7,11,18,0.75) 55%, rgba(7,11,18,0.2) 100%);
  z-index:1;
}
.hero-section::after {
  content:'';
  position:absolute;
  top:0; left:0; right:0; height:1px;
  background:linear-gradient(90deg, transparent, rgba(45,212,238,0.6), transparent);
  z-index:2;
}
.hero-scanline {
  position:absolute;
  top:25%; left:0; right:0; height:1px;
  background:linear-gradient(90deg, transparent, rgba(163,230,53,0.4), transparent);
  z-index:2;
  animation:scanMove 8s linear infinite;
}
@keyframes scanMove {
  0% { top:15%; opacity:0.2; }
  50% { top:75%; opacity:0.6; }
  100% { top:15%; opacity:0.2; }
}
.hero-content { position:relative; z-index:3; }
.hero-title {
  font-size:clamp(2.8rem, 5vw, 4.5rem);
  font-weight:900;
  line-height:1.15;
  letter-spacing:-0.02em;
  color:#fff;
  margin-bottom:24px;
}
.hero-title .hero-gradient-text {
  background:linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero-sub {
  font-size:1.05rem;
  color:var(--text-mid);
  max-width:480px;
  margin-bottom:32px;
  line-height:1.7;
}
.hero-actions {
  display:flex; align-items:center; gap:16px;
  flex-wrap:wrap;
}

/* Phone Frame */
.phone-frame {
  position:relative;
  width:280px;
  max-width:36vw;
  aspect-ratio:9/16;
  border-radius:24px;
  border:1px solid rgba(255,255,255,0.15);
  background:url('/assets/images/coverpic/cover-1.webp') center/cover;
  box-shadow:0 24px 60px rgba(0,0,0,0.6), 0 0 40px rgba(45,212,238,0.08);
  z-index:3;
  overflow:hidden;
}
.phone-frame::before {
  content:'';
  position:absolute; inset:0;
  background:linear-gradient(to top, rgba(7,11,18,0.85) 0%, rgba(7,11,18,0.1) 40%, transparent 60%);
}
.phone-live {
  position:absolute; top:16px; left:16px;
  display:flex; align-items:center; gap:6px;
  background:rgba(0,0,0,0.55);
  border-radius:999px;
  padding:5px 12px;
  font-size:0.7rem;
  color:#fff;
  border:1px solid rgba(255,255,255,0.15);
  backdrop-filter:blur(4px);
}
.phone-live .live-dot {
  width:6px; height:6px; border-radius:50%;
  background:#FACC15;
  animation:pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { opacity:1; }
  50% { opacity:0.4; }
}
.phone-actions {
  position:absolute;
  right:12px;
  bottom:80px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:16px;
  z-index:2;
}
.phone-action-item {
  display:flex; flex-direction:column; align-items:center;
  gap:4px;
  color:rgba(255,255,255,0.8);
  font-size:0.65rem;
}
.phone-action-item .icon-circle {
  width:36px; height:36px;
  border-radius:50%;
  background:rgba(0,0,0,0.45);
  border:1px solid rgba(255,255,255,0.2);
  display:flex; align-items:center; justify-content:center;
  backdrop-filter:blur(4px);
  transition:all 0.2s;
}
.phone-action-item:hover .icon-circle {
  border-color:var(--primary);
  background:rgba(45,212,238,0.15);
}
.phone-progress {
  position:absolute;
  bottom:0; left:0; right:0;
  height:3px;
  background:rgba(255,255,255,0.15);
  z-index:2;
}
.phone-progress .progress-bar {
  height:100%;
  width:65%;
  background:linear-gradient(90deg, var(--primary), var(--secondary));
  box-shadow:0 0 8px rgba(45,212,238,0.5);
}

/* Ticker */
.ticker-wrap {
  position:relative;
  z-index:5;
  margin-top:60px;
  background:rgba(255,255,255,0.04);
  backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:12px;
  padding:12px 20px;
  overflow:hidden;
}
.ticker-track {
  display:flex;
  gap:48px;
  white-space:nowrap;
  animation:ticker 25s linear infinite;
}
@keyframes ticker {
  0% { transform:translateX(0); }
  100% { transform:translateX(-50%); }
}
.ticker-item {
  display:flex; align-items:center; gap:8px;
  font-size:0.8rem;
  color:var(--text-mid);
}
.ticker-dot {
  width:4px; height:4px; border-radius:50%;
  background:var(--secondary);
  flex-shrink:0;
}

/* Hot Video Cards */
.video-grid {
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:20px;
}
.video-card {
  position:relative;
  aspect-ratio:9/16;
  border-radius:var(--radius-card);
  overflow:hidden;
  cursor:pointer;
  border:1px solid rgba(255,255,255,0.08);
  transition:all 0.3s;
  background-size:cover;
  background-position:center;
}
.video-card:hover {
  border-color:var(--border-glow);
  box-shadow:0 0 28px rgba(34,211,238,0.2);
  transform:translateY(-4px);
}
.video-card .video-card-img {
  position:absolute; inset:0;
  background-size:cover;
  background-position:center;
  transition:transform 0.5s;
}
.video-card:hover .video-card-img { transform:scale(1.05); }
.video-card-gradient {
  position:absolute; inset:0;
  background:linear-gradient(to top, rgba(0,0,0,0.9) 5%, rgba(0,0,0,0.3) 45%, transparent 70%);
}
.video-badge {
  position:absolute; top:12px; right:12px;
  background:var(--accent-lime);
  color:#0B0F1A;
  font-size:0.68rem;
  font-weight:700;
  padding:3px 12px;
  border-radius:999px;
  letter-spacing:0.05em;
}
.video-play-btn {
  position:absolute;
  top:50%; left:50%;
  transform:translate(-50%,-50%);
  width:48px; height:48px;
  border-radius:50%;
  background:rgba(255,255,255,0.15);
  border:1px solid rgba(255,255,255,0.3);
  display:flex; align-items:center; justify-content:center;
  backdrop-filter:blur(4px);
  opacity:0;
  transition:opacity 0.3s;
  color:#fff;
}
.video-card:hover .video-play-btn { opacity:1; }
.video-card-info {
  position:absolute; bottom:0; left:0; right:0;
  padding:16px;
  z-index:2;
}
.video-card-title {
  font-size:0.92rem;
  font-weight:600;
  color:#fff;
  line-height:1.4;
  margin-bottom:6px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.video-card-meta {
  font-size:0.72rem;
  color:rgba(255,255,255,0.55);
  display:flex; align-items:center; gap:8px;
}

/* Horizontal Scroll Cards */
.hscroll-wrap {
  position:relative;
  overflow:hidden;
}
.hscroll-track {
  display:flex;
  gap:16px;
  overflow-x:auto;
  padding:8px 4px 24px;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.hscroll-track::-webkit-scrollbar { display:none; }
.hscroll-item {
  flex:0 0 280px;
  display:flex;
  align-items:center;
  gap:14px;
  background:rgba(255,255,255,0.05);
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:16px;
  padding:16px;
  transition:all 0.3s;
}
.hscroll-item:hover {
  border-color:rgba(255,255,255,0.18);
  background:rgba(255,255,255,0.08);
}
.hscroll-thumb {
  width:64px; height:64px;
  border-radius:12px;
  background-size:cover;
  background-position:center;
  flex-shrink:0;
}
.hscroll-name {
  font-size:0.88rem;
  font-weight:600;
  color:#fff;
  margin-bottom:4px;
}
.hscroll-desc {
  font-size:0.75rem;
  color:var(--text-low);
  line-height:1.4;
}
.hscroll-go {
  margin-left:auto;
  font-size:0.75rem;
  color:var(--primary);
  border:1px solid rgba(45,212,238,0.3);
  border-radius:999px;
  padding:4px 14px;
  white-space:nowrap;
  transition:all 0.2s;
}
.hscroll-go:hover {
  background:rgba(45,212,238,0.1);
  border-color:var(--primary);
}

/* Reviews */
.review-item {
  display:flex;
  align-items:flex-start;
  gap:14px;
  padding:20px;
  border-radius:14px;
  background:rgba(255,255,255,0.03);
  border:1px solid rgba(255,255,255,0.06);
  border-left:2px solid var(--primary);
  transition:background 0.3s;
}
.review-item:hover { background:rgba(255,255,255,0.05); }
.review-avatar {
  width:40px; height:40px;
  border-radius:50%;
  background:linear-gradient(135deg, rgba(45,212,238,0.5), rgba(163,230,53,0.5));
  flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
  font-size:0.9rem;
  color:#fff;
}
.review-stars {
  display:flex; gap:2px;
  color:var(--accent-lime);
  font-size:0.75rem;
  margin-bottom:4px;
}
.review-stars .star-off { color:rgba(255,255,255,0.15); }
.review-text {
  font-size:0.85rem;
  color:var(--text-mid);
  line-height:1.6;
  margin-bottom:6px;
}
.review-meta {
  font-size:0.7rem;
  color:var(--text-low);
}

/* CTA Zone */
.cta-zone {
  position:relative;
  background:linear-gradient(135deg, rgba(45,212,238,0.08), rgba(163,230,53,0.04));
  border:1px solid rgba(255,255,255,0.1);
  border-radius:24px;
  padding:60px 48px;
  overflow:hidden;
  backdrop-filter:blur(16px);
}
.cta-zone::before {
  content:'';
  position:absolute;
  top:0; left:0; right:0; height:1px;
  background:linear-gradient(90deg, transparent, rgba(45,212,238,0.6), transparent);
}
.cta-glow-dot {
  position:absolute;
  width:8px; height:8px;
  border-radius:50%;
  background:var(--secondary);
  box-shadow:0 0 16px var(--secondary);
}
.cta-glow-dot.d1 { top:20px; left:32px; animation:pulse 3s infinite; }
.cta-glow-dot.d2 { bottom:20px; right:40px; animation:pulse 2.5s infinite 1s; }
.cta-title {
  font-size:clamp(1.4rem, 2.5vw, 2rem);
  font-weight:700;
  color:#fff;
  margin-bottom:8px;
}
.cta-desc { color:var(--text-mid); font-size:0.95rem; }
.cta-btn {
  font-size:1.05rem;
  padding:16px 48px;
  background:linear-gradient(135deg, var(--primary), var(--secondary));
  color:#0B0F1A;
  font-weight:700;
  border-radius:14px;
  border:none;
  cursor:pointer;
  box-shadow:var(--glow-primary);
  transition:all 0.25s;
}
.cta-btn:hover {
  box-shadow:0 0 12px rgba(45,212,238,0.6);
  transform:translateY(-1px);
  filter:brightness(1.1);
}
.cta-btn:active { transform:translateY(1px); }

/* News Cards */
.news-grid {
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:24px;
}
.news-card {
  background:var(--bg-secondary);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:16px;
  overflow:hidden;
  transition:all 0.3s;
}
.news-card:hover {
  border-color:var(--border-glow);
  box-shadow:0 0 24px rgba(34,211,238,0.12);
}
.news-thumb {
  height:168px;
  position:relative;
  overflow:hidden;
  background-size:cover;
  background-position:center;
}
.news-thumb img {
  width:100%; height:100%;
  object-fit:cover;
  transition:transform 0.5s;
}
.news-card:hover .news-thumb img { transform:scale(1.05); }
.news-thumb .news-cat {
  position:absolute; top:12px; left:12px;
  background:rgba(255,255,255,0.15);
  color:#fff;
  font-size:0.68rem;
  padding:3px 12px;
  border-radius:999px;
  backdrop-filter:blur(4px);
}
.news-body { padding:20px; }
.news-body h3 {
  font-size:1rem;
  font-weight:600;
  color:#fff;
  line-height:1.5;
  margin-bottom:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color 0.2s;
}
.news-card:hover .news-body h3 { color:var(--primary); }
.news-body p {
  font-size:0.82rem;
  color:var(--text-low);
  line-height:1.6;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:12px;
}
.news-meta {
  display:flex; justify-content:space-between;
  font-size:0.72rem;
  color:rgba(255,255,255,0.35);
  border-top:1px solid rgba(255,255,255,0.05);
  padding-top:12px;
}

/* Empty State */
.empty-state {
  border:2px dashed rgba(255,255,255,0.12);
  border-radius:16px;
  min-height:280px;
  display:flex; flex-direction:column;
  align-items:center; justify-content:center;
  gap:16px;
  color:var(--text-low);
  background:rgba(255,255,255,0.02);
}
.empty-state-icon { 
  width:64px; height:64px;
  border-radius:16px;
  background:rgba(255,255,255,0.05);
  display:flex; align-items:center; justify-content:center;
  font-size:1.8rem;
}
.empty-state-text {
  font-size:0.9rem;
  color:var(--text-low);
  letter-spacing:0.05em;
}

/* FAQ */
.faq-left-title {
  font-size:clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight:700;
  color:#fff;
  line-height:1.3;
}
.faq-item {
  padding:24px 0;
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.faq-item:first-child { border-top:1px solid rgba(255,255,255,0.06); }
.faq-q {
  font-size:0.95rem;
  font-weight:600;
  color:#fff;
  display:flex;
  align-items:flex-start;
  gap:12px;
  margin-bottom:8px;
}
.faq-q::before {
  content:'▍';
  color:var(--secondary);
  font-size:1rem;
  flex-shrink:0;
}
.faq-a {
  font-size:0.85rem;
  color:var(--text-mid);
  line-height:1.7;
  padding-left:22px;
}

/* Footer */
.site-footer {
  background:var(--bg-secondary);
  border-top:1px solid rgba(255,255,255,0.06);
  padding:64px 0 24px;
}
.footer-grid {
  display:grid;
  grid-template-columns:1.2fr 1fr 1fr;
  gap:48px;
  margin-bottom:48px;
}
.footer-brand { display:flex; align-items:center; gap:10px; margin-bottom:14px; }
.footer-brand-mark {
  width:24px; height:24px;
  border-radius:6px;
  background:linear-gradient(135deg, var(--primary), var(--secondary));
  display:flex; align-items:center; justify-content:center;
}
.footer-brand-text {
  font-weight:700; color:#fff;
  font-size:0.95rem;
}
.footer-desc {
  font-size:0.8rem;
  color:var(--text-low);
  line-height:1.7;
  max-width:280px;
}
.footer-heading {
  font-size:0.8rem;
  font-weight:600;
  color:#fff;
  letter-spacing:0.05em;
  margin-bottom:16px;
}
.footer-links {
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links a {
  font-size:0.8rem;
  color:var(--text-mid);
  transition:color 0.2s;
}
.footer-links a:hover { color:var(--primary); }
.footer-bottom {
  border-top:1px solid rgba(255,255,255,0.06);
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  font-size:0.72rem;
  color:var(--text-low);
}

/* Floating Entry */
.float-entry {
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:90;
  display:flex;
  align-items:center;
  gap:8px;
  background:rgba(7,11,18,0.85);
  backdrop-filter:blur(12px);
  border:1px solid rgba(45,212,238,0.4);
  border-radius:999px;
  padding:10px 20px;
  font-size:0.8rem;
  color:#fff;
  cursor:pointer;
  box-shadow:0 0 20px rgba(45,212,238,0.2);
  transition:all 0.3s;
}
.float-entry:hover {
  border-color:var(--primary);
  box-shadow:0 0 30px rgba(45,212,238,0.35);
}
.float-entry .arrow {
  color:var(--primary);
  font-size:1rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .video-grid { grid-template-columns:repeat(2, 1fr); gap:16px; }
  .news-grid { grid-template-columns:repeat(2, 1fr); }
  .section-pad { padding:72px 0; }
  .phone-frame { width:220px; }
}
@media (max-width: 768px) {
  .nav-links, .nav-cta.desktop-cta { display:none; }
  .mobile-menu-btn { display:flex; }
  .section-pad { padding:56px 0; }
  .section-pad-sm { padding:40px 0; }
  .hero-section { min-height:auto; padding-top:90px; padding-bottom:40px; }
  .hero-title { font-size:clamp(2rem, 8vw, 3rem); }
  .video-grid { grid-template-columns:repeat(2, 1fr); gap:12px; }
  .news-grid { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; gap:32px; }
  .cta-zone { padding:40px 24px; }
  .cta-btn { width:100%; }
  .phone-frame {
    width:100%;
    max-width:260px;
    margin:0 auto;
  }
  .hscroll-item { flex-basis:230px; }
}
@media (max-width: 520px) {
  .container-main { padding:0 16px; }
  .video-grid { grid-template-columns:1fr; }
  .hero-actions { flex-direction:column; align-items:stretch; }
  .hero-actions .btn-primary,
  .hero-actions .btn-outline { width:100%; }
  .float-entry { display:none; }
}

/* Accessibility */
a:focus-visible, button:focus-visible {
  outline:none;
  box-shadow:0 0 0 3px rgba(45,212,238,0.4);
}

/* roulang page: article */
:root {
  --bg-primary: #070B12;
  --bg-secondary: #0D1320;
  --surface-glass: rgba(255,255,255,0.06);
  --border-glass: rgba(255,255,255,0.10);
  --border-glow: rgba(34,211,238,0.4);
  --primary: #2DD4EE;
  --secondary: #A3E635;
  --accent-lime: #FACC15;
  --text-hi: rgba(255,255,255,0.95);
  --text-mid: rgba(255,255,255,0.70);
  --text-low: rgba(255,255,255,0.45);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg-primary);
  color: var(--text-hi);
  line-height: 1.8;
  min-height: 100vh;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: all .25s ease; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; outline: none; }
:focus-visible { outline: 2px solid rgba(45,212,238,0.5); outline-offset: 3px; }
.container-main { max-width: 1240px; margin: 0 auto; padding: 0 28px; }

/* === 导航 === */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(7,11,18,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: all .35s ease;
}
.site-nav.scrolled { background: rgba(7,11,18,0.92); box-shadow: 0 8px 32px rgba(0,0,0,0.28); }
.nav-logo { display: inline-flex; align-items: center; gap: 10px; }
.nav-logo-mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 18px rgba(45,212,238,0.3);
}
.nav-logo-mark .dot { width: 8px; height: 8px; border-radius: 50%; background: #070B12; }
.nav-logo-text { font-size: 1.2rem; font-weight: 800; letter-spacing: 0.02em; color: #fff; }
.nav-logo-tag {
  display: inline-block; font-size: 0.6rem; letter-spacing: 0.08em;
  padding: 2px 6px; border: 1px solid rgba(255,255,255,0.2);
  border-radius: 4px; color: rgba(255,255,255,0.5);
  font-weight: 600; text-transform: uppercase;
}
.nav-links { display: flex; align-items: center; gap: 40px; }
.nav-link {
  position: relative;
  display: flex; flex-direction: column; align-items: center; gap: 5px;
  font-size: 0.85rem; letter-spacing: 0.08em;
  color: rgba(255,255,255,0.62); font-weight: 500;
  padding: 4px 0; white-space: nowrap;
}
.nav-link::after {
  content: ''; width: 4px; height: 4px; border-radius: 50%;
  background: var(--primary); opacity: 0; transition: opacity .25s;
  box-shadow: 0 0 8px rgba(45,212,238,0.8);
}
.nav-link:hover { color: #fff; }
.nav-link.active { color: #fff; }
.nav-link.active::after { opacity: 1; }
.nav-cta {
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.85rem; letter-spacing: 0.06em;
  color: rgba(255,255,255,0.85);
  border: 1px solid rgba(255,255,255,0.28);
  border-radius: 8px; padding: 8px 18px;
  transition: all .3s ease;
}
.nav-cta:hover { border-color: var(--primary); color: var(--primary); box-shadow: 0 0 16px rgba(45,212,238,0.12); }
.mobile-menu-btn { display: none; background: transparent; border: none; color: rgba(255,255,255,0.7); }
.mobile-menu-btn:hover { color: #fff; }
.mobile-menu {
  display: none; flex-direction: column;
  background: rgba(7,11,18,0.96);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 12px 24px 20px;
}
.mobile-menu.open { display: flex; }
.mobile-menu-links { display: flex; flex-direction: column; gap: 0; }
.mobile-menu-links a {
  padding: 13px 0; font-size: 0.92rem; letter-spacing: 0.05em;
  color: rgba(255,255,255,0.75); border-bottom: 1px solid rgba(255,255,255,0.06);
  display: block;
}
.mobile-menu-links a:hover, .mobile-menu-links a.active { color: var(--primary); }

/* === 文章页主结构 === */
.article-page { position: relative; padding-bottom: 100px; }
.article-page::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0.3; pointer-events: none;
}
.breadcrumb {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  padding: 26px 0 10px; font-size: 0.82rem; color: var(--text-low);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 44px;
}
.breadcrumb a { color: var(--text-mid); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: rgba(255,255,255,0.2); }
.breadcrumb .current { color: rgba(255,255,255,0.85); font-weight: 600; max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.article-wrap { max-width: 860px; margin: 0 auto; }
.article-main { margin-bottom: 64px; }
.article-header { margin-bottom: 24px; }
.article-title {
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 800; line-height: 1.35; letter-spacing: 0.02em;
  color: rgba(255,255,255,0.98);
  margin-bottom: 16px;
}
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; font-size: 0.8rem; color: var(--text-mid); }
.article-meta a { color: var(--text-mid); }
.article-meta a:hover { color: var(--primary); }
.meta-cat { color: var(--primary) !important; font-weight: 600; }
.meta-sep { color: rgba(255,255,255,0.2); }
.article-meta svg { width: 14px; height: 14px; opacity: 0.5; }
.meta-date, .meta-views { display: inline-flex; align-items: center; gap: 4px; }
.article-cover {
  border-radius: 16px; overflow: hidden;
  border: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 36px; position: relative;
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}
.article-cover img { width: 100%; aspect-ratio: 16/8.8; object-fit: cover; }
.article-cover::after {
  content: ''; position: absolute; inset: 0;
  border-radius: 16px;
  box-shadow: inset 0 0 40px rgba(7,11,18,0.35);
  pointer-events: none;
}

/* === 正文排版 === */
.article-body { font-size: 1rem; line-height: 2.0; color: rgba(255,255,255,0.82); letter-spacing: 0.01em; max-width: 720px; margin: 0 auto 40px; }
.article-body p { margin-bottom: 22px; }
.article-body h2 {
  font-size: 1.45rem; font-weight: 700; color: rgba(255,255,255,0.96);
  margin: 40px 0 16px; padding-left: 14px;
  border-left: 3px solid var(--primary); letter-spacing: 0.01em;
}
.article-body h3 {
  font-size: 1.18rem; font-weight: 600; color: rgba(255,255,255,0.94);
  margin: 30px 0 12px;

}
.article-body h4 { font-size: 1.02rem; font-weight: 600; color: rgba(255,255,255,0.92); margin: 24px 0 10px; }
.article-body img {
  border-radius: 12px; border: 1px solid rgba(255,255,255,0.1);
  margin: 24px auto; max-width: 100%;
}
.article-body a { color: var(--primary); border-bottom: 1px solid rgba(45,212,238,0.3); padding-bottom: 1px; }
.article-body a:hover { color: var(--secondary); border-color: var(--secondary); }
.article-body ul, .article-body ol { margin: 0 0 22px 0; padding-left: 22px; }
.article-body ul li { list-style: none; position: relative; padding-left: 16px; margin-bottom: 8px; }
.article-body ul li::before {
  content: ''; position: absolute; left: 0; top: 12px;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--primary); box-shadow: 0 0 8px rgba(45,212,238,0.5);
}
.article-body ol { padding-left: 22px; }
.article-body ol li { list-style: decimal; color: rgba(255,255,255,0.82); margin-bottom: 8px; }
.article-body blockquote {
  border-left: 3px solid var(--secondary);
  background: rgba(163,230,53,0.05);
  padding: 16px 22px;
  margin: 24px 0;
  border-radius: 0 12px 12px 0;
  font-style: italic; color: rgba(255,255,255,0.7);
}
.article-body blockquote p { margin-bottom: 8px; }
.article-body blockquote p:last-child { margin-bottom: 0; }
.article-body strong { color: rgba(255,255,255,0.95); font-weight: 700; }
.article-body code {
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 4px; padding: 2px 6px; font-size: 0.88em;
  color: var(--primary);
}
.article-body pre {
  background: #0A0F18; border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px; padding: 18px; overflow-x: auto; margin: 24px 0;
}
.article-body pre code { background: transparent; border: none; padding: 0; color: rgba(255,255,255,0.85); }
.article-body table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.article-body th, .article-body td { border: 1px solid rgba(255,255,255,0.1); padding: 10px 14px; text-align: left; font-size: 0.9rem; }
.article-body th { background: rgba(255,255,255,0.05); font-weight: 600; color: rgba(255,255,255,0.9); }

/* === 标签 === */
.article-tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 30px 0 48px; }
.tag-chip {
  font-size: 0.78rem; padding: 6px 16px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 999px; color: rgba(255,255,255,0.62);
  transition: all .3s ease;
}
.tag-chip:hover { border-color: var(--primary); color: var(--primary); }

/* === 相关推荐 === */
.related-section { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 56px; margin-bottom: 56px; }
.related-section h2 {
  font-size: 1.45rem; font-weight: 700; color: rgba(255,255,255,0.95);
  margin-bottom: 28px; display: flex; align-items: center; gap: 12px;
}
.related-section h2::before {
  content: ''; width: 4px; height: 22px; border-radius: 2px;
  background: var(--primary); box-shadow: 0 0 12px rgba(45,212,238,0.4);
}
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.related-card {
  display: flex; flex-direction: column;
  background: var(--bg-secondary);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px; overflow: hidden;
  transition: all .35s ease;
}
.related-card:hover { border-color: var(--border-glow); box-shadow: 0 0 24px rgba(45,212,238,0.12); transform: translateY(-3px); }
.related-thumb { overflow: hidden; }
.related-thumb img { aspect-ratio: 16/9.5; object-fit: cover; transition: transform .5s ease; width: 100%; }
.related-card:hover .related-thumb img { transform: scale(1.05); }
.related-info { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.related-cat { font-size: 0.72rem; letter-spacing: 0.08em; color: var(--primary); font-weight: 600; }
.related-title { font-size: 0.95rem; font-weight: 700; color: var(--text-hi); line-height: 1.5; }
.related-desc { font-size: 0.78rem; color: var(--text-low); line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* === 返回按钮区 === */
.article-nav-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; padding: 32px 0; }
.btn-outline, .btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.9rem; font-weight: 600; letter-spacing: 0.05em;
  border-radius: 10px; padding: 13px 34px; min-height: 44px;
  transition: all .3s ease;
}
.btn-outline {
  border: 1px solid rgba(255,255,255,0.22);
  background: transparent; color: rgba(255,255,255,0.85);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); box-shadow: 0 0 14px rgba(45,212,238,0.15); }
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #0B0F1A; font-weight: 700;
  box-shadow: 0 0 24px rgba(45,212,238,0.35);
  border: none;
}
.btn-primary:hover { box-shadow: 0 0 12px rgba(45,212,238,0.6); transform: translateY(-1px); filter: brightness(1.1); }
.btn-primary:active { transform: translateY(1px); }

/* === 内容未找到 === */
.not-found-box {
  max-width: 720px; margin: 60px auto 80px;
  background: var(--bg-secondary);
  border: 1px dashed rgba(255,255,255,0.18);
  border-radius: 20px;
  padding: 70px 40px;
  text-align: center;
}
.not-found-box .nf-icon {
  width: 64px; height: 64px; margin: 0 auto 20px;
  border-radius: 50%;
  background: rgba(45,212,238,0.1);
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(45,212,238,0.2);
}
.not-found-box .nf-icon svg { width: 30px; height: 30px; color: var(--primary); }
.not-found-box h2 { font-size: 1.6rem; font-weight: 700; margin-bottom: 10px; }
.not-found-box p { color: var(--text-mid); font-size: 0.95rem; margin-bottom: 32px; }

/* === 页脚 === */
.site-footer { border-top: 1px solid rgba(255,255,255,0.08); background: #05080E; padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand-mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex; align-items: center; justify-content: center;
}
.footer-brand-text { font-size: 1.2rem; font-weight: 800; color: #fff; letter-spacing: 0.02em; }
.footer-desc { font-size: 0.85rem; color: var(--text-low); line-height: 1.8; max-width: 280px; }
.footer-heading { font-size: 0.9rem; font-weight: 700; color: rgba(255,255,255,0.9); margin-bottom: 16px; letter-spacing: 0.06em; }
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a { display: inline-block; font-size: 0.82rem; color: var(--text-mid); }
.footer-links a:hover { color: var(--primary); transform: translateX(4px); }
.footer-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
  padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 0.75rem; color: var(--text-low);
}

/* === 响应式 === */
@media (max-width: 1024px) {
  .related-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .nav-links, .desktop-cta { display: none; }
  .mobile-menu-btn { display: inline-flex; }
  .container-main { padding: 0 20px; }
  .breadcrumb { margin-bottom: 30px; }
  .article-page { padding-bottom: 64px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .article-body { font-size: 0.95rem; }
  .article-nav-buttons { flex-direction: column; }
  .btn-outline, .btn-primary { width: 100%; }
  .not-found-box { padding: 48px 24px; }
}
@media (max-width: 520px) {
  .container-main { padding: 0 16px; }
  .article-title { font-size: 1.4rem; }
  .article-cover img { aspect-ratio: 4/3; }
  .related-card { flex-direction: row; }
  .related-thumb img { width: 120px; aspect-ratio: 1; }
  .related-info { padding: 14px; }
  .footer-bottom { flex-direction: column; text-align: left; }
}
.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

/* roulang page: category1 */
:root {
    --bg-primary: #070B12;
    --bg-secondary: #0D1320;
    --surface-glass: rgba(255,255,255,0.06);
    --border-glass: rgba(255,255,255,0.10);
    --border-glow: rgba(34, 211, 238, 0.4);
    --primary: #2DD4EE;
    --secondary: #A3E635;
    --accent-lime: #FACC15;
    --text-hi: rgba(255,255,255,0.95);
    --text-mid: rgba(255,255,255,0.70);
    --text-low: rgba(255,255,255,0.45);
  }

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

  html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
  }

  body {
    background: var(--bg-primary);
    color: var(--text-mid);
    font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }

  a {
    color: inherit;
    text-decoration: none;
    transition: color .3s;
  }

  a:focus-visible,
  button:focus-visible {
    outline: 2px solid rgba(45, 212, 238, 0.5);
    outline-offset: 3px;
    border-radius: 6px;
  }

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

  .container-main {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
  }

  @media (max-width: 640px) {
    .container-main {
      padding: 0 16px;
    }
  }

  /* ===== 导航 ===== */
  .site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(7, 11, 18, 0.75);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: background .4s, box-shadow .4s;
  }

  .site-nav.scrolled {
    background: rgba(7, 11, 18, 0.92);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
  }

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

  .nav-logo-mark {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 0 14px rgba(45, 212, 238, 0.3);
  }

  .nav-logo-mark .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #070B12;
  }

  .nav-logo-text {
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.04em;
    color: var(--text-hi);
    white-space: nowrap;
  }

  .nav-logo-tag {
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 2px 7px;
    font-size: 10px;
    border-radius: 5px;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.14em;
    font-weight: 500;
    white-space: nowrap;
  }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
  }

  .nav-links .nav-link {
    position: relative;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    letter-spacing: 0.08em;
    padding: 8px 0;
    transition: color .3s;
    white-space: nowrap;
  }

  .nav-links .nav-link:hover {
    color: #ffffff;
  }

  .nav-links .nav-link.active {
    color: #ffffff;
    font-weight: 600;
  }

  .nav-links .nav-link.active::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 10px rgba(45, 212, 238, 0.7);
  }

  .nav-cta {
    border: 1px solid rgba(255, 255, 255, 0.28);
    color: #ffffff;
    font-size: 0.85rem;
    padding: 7px 16px;
    border-radius: 10px;
    transition: border-color .3s, background .3s, color .3s;
    white-space: nowrap;
    letter-spacing: 0.02em;
  }

  .nav-cta:hover {
    border-color: var(--primary);
    color: #ffffff;
    background: rgba(255, 255, 255, 0.06);
  }

  .mobile-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: transparent;
    color: #fff;
    cursor: pointer;
    transition: border-color .3s;
  }

  .mobile-menu-btn:hover {
    border-color: rgba(45, 212, 238, 0.5);
  }

  .mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    z-index: 99;
    background: rgba(7, 11, 18, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 18px 24px 30px;
  }

  .mobile-menu.active {
    display: block;
  }

  .mobile-menu a {
    display: block;
    padding: 14px 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    letter-spacing: 0.04em;
  }

  .mobile-menu a.active {
    color: var(--primary);
    font-weight: 600;
  }

  @media (max-width: 1023px) {
    .nav-links {
      display: none;
    }
    .desktop-cta {
      display: none !important;
    }
    .mobile-menu-btn {
      display: flex;
    }
  }

  @media (min-width: 1024px) {
    .mobile-menu {
      display: none !important;
    }
  }

  /* ===== 分类 Hero ===== */
  .cat-hero {
    position: relative;
    min-height: 46vh;
    padding: 130px 0 80px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background-color: var(--bg-primary);
  }

  .cat-hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    z-index: 0;
  }

  .cat-hero-mask {
    position: absolute;
    inset: 0;
    background: linear-gradient(115deg, rgba(7, 11, 18, 0.96) 20%, rgba(7, 11, 18, 0.68) 55%, rgba(7, 11, 18, 0.4) 100%);
    z-index: 1;
  }

  .cat-hero-scan {
    position: absolute;
    left: 0;
    width: 100%;
    height: 1px;
    z-index: 2;
    pointer-events: none;
  }

  .cat-hero-scan-1 {
    top: 24%;
    background: linear-gradient(90deg, transparent, rgba(45, 212, 238, 0.3), transparent);
  }

  .cat-hero-scan-2 {
    bottom: 32%;
    background: linear-gradient(90deg, transparent, rgba(163, 230, 53, 0.22), transparent);
  }

  .cat-hero-inner {
    position: relative;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 48px;
    width: 100%;
  }

  .cat-hero-left {
    max-width: 620px;
  }

  .cat-hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    letter-spacing: 0.14em;
    color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 20px;
  }

  .live-dot {
    display: inline-block;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #EF4444;
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.6);
    animation: livePulse 2s infinite;
  }

  @keyframes livePulse {
    0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.5); }
    70% { box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
    100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
  }

  .cat-hero h1 {
    font-size: clamp(2.6rem, 5vw, 4rem);
    font-weight: 900;
    color: var(--text-hi);
    letter-spacing: 0.02em;
    line-height: 1.15;
    margin-bottom: 16px;
  }

  .cat-hero-sub {
    font-size: 1.05rem;
    color: var(--text-mid);
    max-width: 420px;
    line-height: 1.8;
    margin-bottom: 30px;
  }

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

  .btn-primary,
  .btn-secondary,
  .btn-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    font-weight: 700;
    border-radius: 12px;
    padding: 12px 28px;
    font-size: 0.95rem;
    transition: all .3s;
    cursor: pointer;
    border: none;
    letter-spacing: 0.02em;
  }

  .btn-primary {
    background: linear-gradient(135deg, #2DD4EE, #A3E635);
    color: #0B0F1A;
    box-shadow: 0 0 24px rgba(45, 212, 238, 0.35);
  }

  .btn-primary:hover {
    box-shadow: 0 0 12px rgba(45, 212, 238, 0.6);
    transform: translateY(-1px);
    filter: brightness(1.06);
  }

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

  .btn-secondary {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: rgba(255, 255, 255, 0.85);
  }

  .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(45, 212, 238, 0.5);
  }

  /* 竖屏窗口 */
  .cat-hero-right {
    flex-shrink: 0;
  }

  .phone-window {
    position: relative;
    width: 200px;
    aspect-ratio: 9 / 16;
    border-radius: 22px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.16);
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5), 0 0 40px rgba(45, 212, 238, 0.08);
    transform: rotate(2deg);
    background: #000;
  }

  .phone-window img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .phone-mask {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85), transparent 45%, rgba(0, 0, 0, 0.2));
  }

  .phone-badge-live {
    position: absolute;
    top: 14px;
    left: 14px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: rgba(239, 68, 68, 0.9);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    padding: 4px 9px;
    border-radius: 6px;
  }

  .phone-badge-live .pulse {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #fff;
    animation: livePulse 1.6s infinite;
  }

  .phone-actions {
    position: absolute;
    right: 12px;
    bottom: 70px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    align-items: center;
  }

  .phone-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    color: #fff;
    font-size: 0.62rem;
    font-weight: 600;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.6);
  }

  .phone-action svg {
    width: 20px;
    height: 20px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.5));
  }

  .phone-progress {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 52px;
    height: 3px;
    background: rgba(255, 255, 255, 0.2);
  }

  .phone-progress i {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 0 3px 3px 0;
  }

  .phone-metadata {
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #fff;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.02em;
  }

  .phone-metadata span:last-child {
    background: rgba(0, 0, 0, 0.5);
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.65rem;
  }

  @media (max-width: 768px) {
    .cat-hero {
      padding: 110px 0 60px;
    }
    .cat-hero-inner {
      flex-direction: column;
      gap: 40px;
    }
    .cat-hero-left {
      max-width: 100%;
    }
    .cat-hero-right {
      width: 100%;
    }
    .phone-window {
      width: 100%;
      max-width: 260px;
      margin: 0 auto;
      transform: none;
    }
  }

  /* 滚动资讯条 */
  .hero-ticker {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 4;
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
    padding: 10px 0;
  }

  .ticker-track {
    display: flex;
    width: max-content;
    animation: tickerMove 36s linear infinite;
  }

  .ticker-group {
    display: flex;
    gap: 48px;
    padding-right: 48px;
    flex-shrink: 0;
  }

  .ticker-group span {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.8rem;
    letter-spacing: 0.04em;
    white-space: nowrap;
  }

  .ticker-group span::before {
    content: '●';
    color: var(--primary);
    font-size: 0.5rem;
    margin-right: 8px;
    vertical-align: 2px;
  }

  @keyframes tickerMove {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
  }

  /* ===== 统计条 ===== */
  .stats-strip {
    background: var(--bg-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  }

  .stat-item {
    padding: 36px 16px;
    text-align: center;
  }

  .stat-num {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    font-weight: 900;
    color: var(--text-hi);
    letter-spacing: 0.02em;
    background: linear-gradient(135deg, #2DD4EE, #A3E635);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
  }

  .stat-label {
    font-size: 0.85rem;
    color: var(--text-mid);
    margin-top: 6px;
    letter-spacing: 0.06em;
  }

  /* ===== 通用板块 ===== */
  .section-block {
    padding: 88px 0;
  }

  .section-block-alt {
    background: var(--bg-secondary);
  }

  .section-head {
    max-width: 640px;
    margin-bottom: 48px;
  }

  .section-head.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
  }

  .section-eyebrow {
    display: inline-block;
    font-size: 0.72rem;
    letter-spacing: 0.22em;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 12px;
    text-transform: uppercase;
  }

  .section-head h2 {
    font-size: clamp(1.6rem, 2.5vw, 2.1rem);
    font-weight: 800;
    color: var(--text-hi);
    letter-spacing: 0.02em;
    line-height: 1.4;
  }

  .section-head h2 span {
    color: var(--primary);
  }

  .section-head p {
    margin-top: 14px;
    color: var(--text-mid);
    font-size: 0.95rem;
    line-height: 1.8;
  }

  @media (max-width: 768px) {
    .section-block {
      padding: 56px 0;
    }
    .section-head {
      margin-bottom: 32px;
    }
  }

  /* ===== 卖点卡 ===== */
  .feature-card {
    padding: 30px 26px;
    border-radius: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    transition: border-color .3s, box-shadow .3s, transform .3s;
  }

  .feature-card:hover {
    border-color: rgba(45, 212, 238, 0.4);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35), 0 0 24px rgba(45, 212, 238, 0.08);
    transform: translateY(-2px);
  }

  .feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(45, 212, 238, 0.12);
    border: 1px solid rgba(45, 212, 238, 0.2);
    margin-bottom: 18px;
  }

  .feature-icon svg {
    width: 24px;
    height: 24px;
    color: var(--primary);
  }

  .feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-hi);
    margin-bottom: 10px;
    letter-spacing: 0.02em;
  }

  .feature-card p {
    font-size: 0.9rem;
    color: var(--text-mid);
    line-height: 1.75;
  }

  .feature-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 14px;
    font-size: 0.75rem;
    color: var(--secondary);
    letter-spacing: 0.05em;
  }

  /* ===== 内容分类网格 ===== */
  .content-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
  }

  @media (min-width: 1024px) {
    .content-layout {
      grid-template-columns: 2fr 1fr;
      gap: 32px;
    }
    .content-side-col {
      position: sticky;
      top: 90px;
      align-self: start;
    }
  }

  .toolbar-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    margin-bottom: 20px;
  }

  .toolbar-count {
    font-size: 0.85rem;
    color: var(--text-mid);
  }

  .toolbar-count strong {
    color: var(--primary);
    font-weight: 700;
  }

  .sort-group {
    display: flex;
    gap: 8px;
  }

  .sort-btn {
    font-size: 0.78rem;
    color: var(--text-mid);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 999px;
    padding: 5px 14px;
    cursor: pointer;
    transition: all .3s;
  }

  .sort-btn:hover {
    color: #fff;
    border-color: rgba(45, 212, 238, 0.4);
  }

  .sort-btn.active {
    color: var(--primary);
    border-color: rgba(45, 212, 238, 0.5);
    background: rgba(45, 212, 238, 0.08);
  }

  .type-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
  }

  @media (min-width: 640px) {
    .type-grid {
      grid-template-columns: 1fr 1fr;
    }
  }

  .type-card {
    border-radius: 16px;
    overflow: hidden;
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    transition: border-color .3s, box-shadow .3s, transform .3s;
  }

  .type-card:hover {
    border-color: rgba(45, 212, 238, 0.4);
    box-shadow: 0 0 24px rgba(45, 212, 238, 0.15);
    transform: translateY(-3px);
  }

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

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

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

  .type-card-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.5), transparent 60%);
  }

  .type-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 2;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.18);
  }

  .type-badge.hot {
    background: rgba(250, 204, 21, 0.9);
    color: #0B0F1A;
    border: none;
  }

  .type-card-body {
    padding: 20px 20px 22px;
  }

  .type-card-body h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-hi);
    margin-bottom: 8px;
    letter-spacing: 0.02em;
    transition: color .3s;
  }

  .type-card:hover .type-card-body h3 {
    color: var(--primary);
  }

  .type-card-body p {
    font-size: 0.86rem;
    color: var(--text-mid);
    line-height: 1.7;
  }

  .type-card-meta {
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 0.75rem;
    color: var(--text-low);
    letter-spacing: 0.03em;
  }

  /* ===== 侧边栏 ===== */
  .side-card {
    border-radius: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    padding: 26px 24px;
  }

  .side-card-head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
  }

  .side-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 12px rgba(45, 212, 238, 0.6);
  }

  .side-card-head h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-hi);
    letter-spacing: 0.02em;
  }

  .top5-list {
    list-style: none;
  }

  .top5-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .top5-item:last-of-type {
    border-bottom: none;
  }

  .top5-num {
    font-size: 1.7rem;
    font-weight: 800;
    line-height: 1.2;
    color: rgba(255, 255, 255, 0.2);
    min-width: 30px;
    font-style: italic;
  }

  .top5-item:nth-child(1) .top5-num {
    color: var(--accent-lime);
  }

  .top5-item:nth-child(2) .top5-num {
    color: var(--primary);
  }

  .top5-item:nth-child(3) .top5-num {
    color: rgba(45, 212, 238, 0.7);
  }

  .top5-info {
    flex: 1;
  }

  .top5-title {
    font-size: 0.9rem;
    color: var(--text-hi);
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color .3s;
  }

  .top5-item:hover .top5-title {
    color: var(--primary);
  }

  .hot-bar {
    height: 3px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0.85;
  }

  .hot-bar-soft {
    opacity: 0.4;
  }

  .side-mini-cta {
    margin-top: 18px;
    border-radius: 14px;
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, rgba(45, 212, 238, 0.1), rgba(163, 230, 53, 0.06));
    border: 1px solid rgba(45, 212, 238, 0.2);
    transition: all .3s;
  }

  .side-mini-cta:hover {
    border-color: rgba(45, 212, 238, 0.5);
    box-shadow: 0 0 20px rgba(45, 212, 238, 0.12);
  }

  .side-mini-cta span:first-child {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-hi);
  }

  .side-mini-cta span:last-child {
    font-size: 0.78rem;
    color: var(--primary);
    font-weight: 600;
  }

  /* ===== 流程 ===== */
  .process-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
  }

  @media (min-width: 768px) {
    .process-grid {
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
  }

  .step-card {
    position: relative;
    padding: 28px 24px;
    border-radius: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    transition: border-color .3s, box-shadow .3s;
  }

  .step-card:hover {
    border-color: rgba(45, 212, 238, 0.4);
    box-shadow: 0 0 24px rgba(45, 212, 238, 0.1);
  }

  .step-num {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: linear-gradient(135deg, #2DD4EE, #A3E635);
    color: #0B0F1A;
    font-weight: 800;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    box-shadow: 0 0 20px rgba(45, 212, 238, 0.25);
  }

  .step-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-hi);
    margin-bottom: 10px;
    letter-spacing: 0.02em;
  }

  .step-card p {
    font-size: 0.88rem;
    color: var(--text-mid);
    line-height: 1.75;
  }

  .step-arrow {
    position: absolute;
    top: 50%;
    right: -18px;
    transform: translateY(-50%);
    color: rgba(45, 212, 238, 0.4);
    font-size: 1.4rem;
    z-index: 2;
  }

  @media (max-width: 767px) {
    .step-arrow {
      display: none;
    }
  }

  /* ===== 场景 ===== */
  .scenario-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
  }

  @media (min-width: 768px) {
    .scenario-grid {
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
  }

  .scenario-card {
    border-radius: 16px;
    overflow: hidden;
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    transition: border-color .3s, box-shadow .3s, transform .3s;
  }

  .scenario-card:hover {
    border-color: rgba(45, 212, 238, 0.4);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
    transform: translateY(-3px);
  }

  .scenario-img {
    position: relative;
    height: 150px;
    overflow: hidden;
  }

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

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

  .scenario-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(13, 19, 32, 0.6), transparent 60%);
  }

  .scenario-tag {
    position: absolute;
    bottom: 10px;
    left: 14px;
    color: #fff;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    padding: 3px 10px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    z-index: 2;
  }

  .scenario-body {
    padding: 20px 22px 24px;
  }

  .scenario-body h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-hi);
    margin-bottom: 8px;
    transition: color .3s;
  }

  .scenario-card:hover .scenario-body h3 {
    color: var(--primary);
  }

  .scenario-body p {
    font-size: 0.88rem;
    color: var(--text-mid);
    line-height: 1.75;
  }

  /* ===== FAQ ===== */
  .faq-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
  }

  @media (min-width: 1024px) {
    .faq-layout {
      grid-template-columns: 1fr 2fr;
      gap: 56px;
    }
  }

  .faq-list {
    width: 100%;
  }

  .faq-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 22px 0;
    transition: background .3s;
  }

  .faq-item:hover {
    background: rgba(255, 255, 255, 0.015);
  }

  .faq-q {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    font-size: 0.98rem;
    font-weight: 700;
    color: var(--text-hi);
    letter-spacing: 0.02em;
    line-height: 1.5;
  }

  .faq-q::before {
    content: '▍';
    color: var(--primary);
    font-size: 1.1rem;
    line-height: 1;
  }

  .faq-a {
    margin-top: 10px;
    margin-left: 20px;
    font-size: 0.9rem;
    color: var(--text-mid);
    line-height: 1.8;
  }

  /* ===== CTA ===== */
  .cta-section {
    padding: 20px 0 88px;
  }

  @media (max-width: 768px) {
    .cta-section {
      padding: 20px 0 56px;
    }
  }

  .cta-box {
    position: relative;
    overflow: hidden;
    border-radius: 24px;
    padding: 52px 48px;
    background: linear-gradient(130deg, rgba(45, 212, 238, 0.14), rgba(163, 230, 53, 0.08), rgba(255, 255, 255, 0.04));
    border: 1px solid rgba(45, 212, 238, 0.3);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
  }

  .cta-glow {
    position: absolute;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(45, 212, 238, 0.25), transparent 70%);
    pointer-events: none;
  }

  .cta-glow-1 {
    top: -30px;
    left: 20%;
    animation: glowFloat 5s ease-in-out infinite;
  }

  .cta-glow-2 {
    bottom: -40px;
    right: 60%;
    background: radial-gradient(circle, rgba(163, 230, 53, 0.18), transparent 70%);
    animation: glowFloat 7s ease-in-out infinite reverse;
  }

  @keyframes glowFloat {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(12px) scale(1.08); }
  }

  .cta-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
    width: 100%;
  }

  .cta-text h2 {
    font-size: clamp(1.3rem, 2vw, 1.7rem);
    font-weight: 800;
    color: var(--text-hi);
    letter-spacing: 0.02em;
    margin-bottom: 8px;
  }

  .cta-text p {
    font-size: 0.92rem;
    color: var(--text-mid);
  }

  .btn-cta {
    background: linear-gradient(135deg, #2DD4EE, #A3E635);
    color: #0B0F1A;
    box-shadow: 0 0 24px rgba(45, 212, 238, 0.35);
    padding: 15px 32px;
    font-size: 1.05rem;
    min-width: 160px;
  }

  .btn-cta:hover {
    box-shadow: 0 0 12px rgba(45, 212, 238, 0.6);
    transform: translateY(-1px);
    filter: brightness(1.06);
  }

  .cta-note {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-low);
    margin-top: 18px;
    letter-spacing: 0.05em;
  }

  @media (max-width: 640px) {
    .cta-box {
      padding: 36px 24px;
      flex-direction: column;
      align-items: flex-start;
    }
    .btn-cta {
      width: 100%;
    }
  }

  /* ===== 页脚 ===== */
  .site-footer {
    background: #05080E;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    padding: 68px 0 28px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  @media (min-width: 768px) {
    .footer-grid {
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: 48px;
    }
  }

  .footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
  }

  .footer-brand-mark {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: linear-gradient(135deg, #2DD4EE, #A3E635);
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .footer-brand-text {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-hi);
    letter-spacing: 0.04em;
  }

  .footer-desc {
    font-size: 0.85rem;
    color: var(--text-low);
    line-height: 1.8;
    max-width: 340px;
  }

  .footer-heading {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-hi);
    letter-spacing: 0.1em;
    margin-bottom: 16px;
  }

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

  .footer-links a {
    font-size: 0.86rem;
    color: var(--text-mid);
    transition: color .3s;
  }

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

  .footer-bottom {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 24px;
    justify-content: space-between;
    padding-top: 24px;
    font-size: 0.76rem;
    color: var(--text-low);
    letter-spacing: 0.03em;
  }

/* roulang page: category2 */
:root {
    --bg-primary: #070B12;
    --bg-secondary: #0D1320;
    --surface-glass: rgba(255,255,255,0.06);
    --border-glass: rgba(255,255,255,0.10);
    --border-glow: rgba(163, 230, 53, 0.4);
    --primary: #2DD4EE;
    --secondary: #A3E635;
    --accent-lime: #FACC15;
    --text-hi: rgba(255,255,255,0.95);
    --text-mid: rgba(255,255,255,0.70);
    --text-low: rgba(255,255,255,0.45);
    --radius-card: 16px;
    --radius-btn: 12px;
    --radius-img: 12px;
    --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
    --glow-lime: 0 0 24px rgba(163,230,53,0.15);
    --max-w: 1200px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    background: var(--bg-primary);
    color: var(--text-hi);
    font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea { font-family: inherit; }

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

/* Navigation */
.site-nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: transparent;
    border-bottom: 1px solid transparent;
    transition: all 0.4s ease;
}
.site-nav.scrolled {
    background: rgba(7,11,18,0.82);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo-mark {
    width: 28px; height: 28px;
    border-radius: 8px;
    background: linear-gradient(135deg, #2DD4EE, #A3E635);
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 0 16px rgba(45,212,238,0.4);
}
.nav-logo-mark .dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: #070B12;
}
.nav-logo-text {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: #fff;
}
.nav-logo-tag {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--text-mid);
    border: 1px solid rgba(255,255,255,0.2);
    padding: 2px 6px;
    border-radius: 4px;
}
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-link {
    font-size: 14px;
    letter-spacing: 0.08em;
    color: rgba(255,255,255,0.6);
    position: relative;
    padding: 6px 2px;
    transition: color 0.3s ease;
}
.nav-link:hover { color: rgba(255,255,255,0.95); }
.nav-link.active { color: #fff; }
.nav-link.active::after {
    content: '';
    position: absolute;
    left: 50%; bottom: -4px;
    transform: translateX(-50%);
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--secondary);
    box-shadow: 0 0 10px rgba(163,230,53,0.6);
}
.nav-cta {
    font-size: 14px;
    letter-spacing: 0.06em;
    color: rgba(255,255,255,0.85);
    border: 1px solid rgba(255,255,255,0.25);
    padding: 8px 20px;
    border-radius: 999px;
    transition: all 0.3s ease;
}
.nav-cta:hover {
    border-color: var(--secondary);
    color: #fff;
    box-shadow: 0 0 16px rgba(163,230,53,0.2);
}
.mobile-menu-btn { display: none; color: rgba(255,255,255,0.8); }

/* Category Hero */
.cat-hero {
    position: relative;
    min-height: 44vh;
    display: flex;
    align-items: center;
    margin-top: 72px;
    overflow: hidden;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.cat-hero-bg {
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
    opacity: 0.35;
    z-index: 0;
}
.cat-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, #070B12 0%, rgba(7,11,18,0.72) 45%, rgba(7,11,18,0.2) 100%);
    z-index: 1;
}
.cat-hero-scanline {
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    overflow: hidden;
}
.cat-hero-scanline::before {
    content: '';
    position: absolute;
    top: -20%;
    left: -20%;
    width: 140%;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(163,230,53,0.35), transparent);
    animation: scanMove 7s linear infinite;
}
@keyframes scanMove {
    0% { top: -20%; opacity: 0; }
    20% { opacity: 1; }
    80% { opacity: 1; }
    100% { top: 120%; opacity: 0; }
}
.cat-hero-inner {
    position: relative;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
    padding: 80px 24px;
    width: 100%;
    max-width: var(--max-w);
}
.cat-hero-content { flex: 1; max-width: 640px; }
.cat-hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--secondary);
    border: 1px solid rgba(163,230,53,0.35);
    border-radius: 999px;
    padding: 5px 14px;
    margin-bottom: 20px;
    background: rgba(163,230,53,0.06);
}
.cat-hero-eyebrow::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--secondary);
    box-shadow: 0 0 8px rgba(163,230,53,0.6);
}
.cat-hero h1 {
    font-size: clamp(2.4rem, 4.5vw, 3.6rem);
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: 0.02em;
    color: #fff;
    margin-bottom: 16px;
}
.cat-hero-content p {
    font-size: 16px;
    color: var(--text-mid);
    max-width: 480px;
    line-height: 1.8;
}
.cat-hero-stats {
    display: flex;
    gap: 24px;
    margin-top: 32px;
}
.cat-hero-stat {
    padding: 8px 0;
}
.cat-hero-stat .num {
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    line-height: 1;
}
.cat-hero-stat .label {
    font-size: 12px;
    color: var(--text-low);
    margin-top: 4px;
}


/* Decorative video window */
.video-decor {
    width: 240px;
    flex-shrink: 0;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.16);
    box-shadow: 0 24px 48px rgba(0,0,0,0.5);
    position: relative;
    transform: rotate(2deg);
}
.video-decor-2 {
    width: 220px;
    position: absolute;
    right: 260px;
    bottom: 40px;
    transform: rotate(-6deg);
    opacity: 0.6;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 16px 40px rgba(0,0,0,0.4);
    display: block;
}
.video-decor-inner {
    position: relative;
    aspect-ratio: 9/16;
    background: #0D1320;
}
.video-decor-img {
    width: 100%; height: 100%;
    object-fit: cover;
    opacity: 0.8;
}
.video-live-badge {
    position: absolute;
    top: 12px; left: 12px;
    display: flex; align-items: center; gap: 6px;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: #fff;
}
.video-live-badge .live-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: #EF4444;
    box-shadow: 0 0 8px rgba(239,68,68,0.8);
    animation: pulse 1.2s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
}
.video-side-actions {
    position: absolute;
    right: 10px;
    bottom: 80px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    align-items: center;
}
.video-side-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    color: rgba(255,255,255,0.85);
}
.video-side-action svg {
    width: 18px; height: 18px;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.5));
}
.video-side-action span {
    font-size: 10px;
    font-weight: 600;
    text-shadow: 0 1px 4px rgba(0,0,0,0.6);
}
.video-progress {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 3px;
    background: rgba(255,255,255,0.15);
}
.video-progress-fill {
    height: 100%;
    width: 42%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    box-shadow: 0 0 10px rgba(45,212,238,0.6);
}
.video-play-btn {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 48px; height: 48px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.25);
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    transition: all 0.3s ease;
}
.video-play-btn:hover {
    background: rgba(45,212,238,0.5);
    transform: translate(-50%, -50%) scale(1.08);
}

/* Content section */
.category-content {
    padding: 64px 0 32px;
    background: var(--bg-primary);
}
.toolbar-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.result-count {
    font-size: 14px;
    color: var(--text-mid);
}
.result-count strong {
    color: var(--secondary);
    font-weight: 700;
}
.sort-tabs {
    display: flex;
    gap: 12px;
}
.sort-tab {
    font-size: 13px;
    color: var(--text-low);
    padding: 5px 14px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}
.sort-tab.active {
    color: var(--secondary);
    border-color: rgba(163,230,53,0.4);
    background: rgba(163,230,53,0.08);
}
.sort-tab:hover {
    color: #fff;
    border-color: rgba(255,255,255,0.3);
}

.cat-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: start;
}
.cat-main-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

/* Notice cards */
.notice-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-card);
    overflow: hidden;
    transition: all 0.35s ease;
    box-shadow: var(--shadow-card);
}
.notice-card:hover {
    border-color: rgba(163,230,53,0.35);
    box-shadow: 0 0 24px rgba(163,230,53,0.12), var(--shadow-card);
    transform: translateY(-3px);
}
.notice-thumb {
    position: relative;
    height: 150px;
    overflow: hidden;
}
.notice-thumb img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.notice-card:hover .notice-thumb img {
    transform: scale(1.05);
}
.notice-thumb::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(7,11,18,0.5) 100%);
}
.notice-cat {
    position: absolute;
    top: 12px; left: 12px;
    z-index: 2;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: #fff;
    background: rgba(0,0,0,0.45);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.14);
    border-radius: 999px;
    padding: 4px 12px;
}
.notice-hot {
    position: absolute;
    top: 12px; right: 12px;
    z-index: 2;
    font-size: 11px;
    font-weight: 700;
    color: #070B12;
    background: var(--accent-lime);
    border-radius: 999px;
    padding: 3px 10px;
    box-shadow: 0 4px 12px rgba(250,204,21,0.35);
}
.notice-body {
    padding: 18px 20px 20px;
}
.notice-title {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.45;
    color: #fff;
    transition: color 0.3s ease;
}
.notice-card:hover .notice-title {
    color: var(--secondary);
}
.notice-desc {
    font-size: 13px;
    color: var(--text-mid);
    line-height: 1.7;
    margin-top: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.notice-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid rgba(255,255,255,0.06);
    font-size: 12px;
    color: var(--text-low);
}

/* Sidebar */
.cat-sidebar {
    position: sticky;
    top: 100px;
}
.sidebar-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-card);
    padding: 24px;
    box-shadow: var(--shadow-card);
}
.sidebar-head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.sidebar-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--secondary);
    box-shadow: 0 0 10px rgba(163,230,53,0.5);
}
.sidebar-head h3 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
}
.top-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.top-item {
    display: flex;
    gap: 12px;
    align-items: center;
}
.top-num {
    font-size: 26px;
    font-weight: 800;
    color: rgba(255,255,255,0.18);
    line-height: 1;
    font-style: italic;
    min-width: 32px;
}
.top-item:hover .top-num {
    color: var(--secondary);
}
.top-info { flex: 1; }
.top-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-hi);
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.3s ease;
}
.top-item:hover .top-title {
    color: var(--secondary);
}
.top-bar {
    height: 3px;
    background: rgba(255,255,255,0.08);
    border-radius: 999px;
    margin-top: 6px;
    overflow: hidden;
}
.top-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 999px;
    box-shadow: 0 0 6px rgba(163,230,53,0.4);
}
.sidebar-mini-card {
    margin-top: 16px;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.08);
    position: relative;
    padding: 20px;
    background: linear-gradient(135deg, rgba(163,230,53,0.08), rgba(45,212,238,0.06));
}
.sidebar-mini-card p {
    font-size: 13px;
    color: var(--text-mid);
    margin-bottom: 10px;
    line-height: 1.5;
}
.mini-card-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: #070B12;
    background: linear-gradient(135deg, #2DD4EE, #A3E635);
    border-radius: 999px;
    padding: 6px 16px;
    transition: all 0.3s ease;
    box-shadow: 0 0 12px rgba(163,230,53,0.35);
}
.mini-card-btn:hover {
    box-shadow: 0 0 20px rgba(163,230,53,0.5);
    transform: translateY(-1px);
}

/* Steps section */
.steps-section {
    padding: 64px 0;
    background: var(--bg-secondary);
    border-top: 1px solid rgba(255,255,255,0.04);
    border-bottom: 1px solid rgba(255,255,255,0.04);
}
.section-head {
    text-align: center;
    margin-bottom: 48px;
}
.section-head .section-eyebrow {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--secondary);
    margin-bottom: 8px;
}
.section-head h2 {
    font-size: clamp(1.8rem, 2.5vw, 2.2rem);
    font-weight: 800;
    letter-spacing: 0.02em;
    color: #fff;
    line-height: 1.3;
}
.section-head p {
    font-size: 14px;
    color: var(--text-low);
    margin-top: 8px;
}
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.step-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-card);
    padding: 32px 28px;
    position: relative;
    transition: all 0.35s ease;
    box-shadow: var(--shadow-card);
}
.step-card:hover {
    border-color: rgba(163,230,53,0.35);
    transform: translateY(-3px);
    box-shadow: 0 0 24px rgba(163,230,53,0.1), var(--shadow-card);
}
.step-num {
    font-size: 56px;
    font-weight: 900;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1px rgba(255,255,255,0.15);
    opacity: 0.8;
    transition: all 0.3s ease;
}
.step-card:hover .step-num {
    -webkit-text-stroke: 1px rgba(163,230,53,0.5);
    opacity: 1;
}
.step-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: #fff;
    margin: 16px 0 10px;
}
.step-card p {
    font-size: 13px;
    color: var(--text-mid);
    line-height: 1.7;
}

/* FAQ */
.faq-section {
    padding: 72px 0;
    background: var(--bg-primary);
}
.faq-layout {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    align-items: start;
}
.faq-left h2 {
    font-size: clamp(1.8rem, 2.5vw, 2.2rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.3;
    margin-bottom: 12px;
}
.faq-left p {
    font-size: 14px;
    color: var(--text-low);
}
.faq-list {
    border-top: 1px solid rgba(255,255,255,0.06);
}
.faq-item {
    border-bottom: 1px solid rgba(255,255,255,0.06);
    padding: 22px 0;
}
.faq-item summary {
    list-style: none;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    cursor: pointer;
    transition: color 0.3s ease;
    line-height: 1.5;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
    content: '▍';
    color: var(--secondary);
    font-size: 20px;
    line-height: 1;
}
.faq-item details > p {
    font-size: 14px;
    color: var(--text-mid);
    line-height: 1.75;
    margin: 10px 0 0 32px;
}

/* CTA */
.cta-section { padding: 64px 0 72px; }
.cta-card {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 20px;
    padding: 48px 56px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 16px 48px rgba(0,0,0,0.4);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}
.cta-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(45,212,238,0.08), rgba(163,230,53,0.08));
    pointer-events: none;
}
.cta-glow-dot {
    position: absolute;
    width: 12px; height: 12px;
    border-radius: 50%;
    background: var(--secondary);
    box-shadow: 0 0 20px rgba(163,230,53,0.6);
    animation: pulse 2s ease-in-out infinite;
}
.cta-glow-dot.lt { top: 20px; left: 20px; }
.cta-glow-dot.rb { bottom: 20px; right: 20px; animation-delay: 1s; }
.cta-card h2 {
    font-size: clamp(1.5rem, 2vw, 1.9rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.3;
}
.cta-card .cta-sub {
    font-size: 14px;
    color: var(--text-mid);
    margin-top: 6px;
}
.cta-btn {
    display: inline-block;
    background: linear-gradient(135deg, #2DD4EE, #A3E635);
    color: #0B0F1A;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 0.02em;
    border-radius: 14px;
    padding: 16px 40px;
    box-shadow: 0 0 24px rgba(45,212,238,0.35);
    transition: all 0.3s ease;
    white-space: nowrap;
}
.cta-btn:hover {
    box-shadow: 0 0 14px rgba(45,212,238,0.6);
    transform: translateY(-1px);
    filter: brightness(1.1);
}
.cta-btn:active {
    transform: translateY(1px);
    box-shadow: 0 0 8px rgba(45,212,238,0.4);
}
.cta-safe-tip {
    text-align: center;
    font-size: 12px;
    color: var(--text-low);
    margin-top: 20px;
}

/* Footer */
.site-footer {
    background: #05080D;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 64px 0 32px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}
.footer-brand-mark {
    width: 26px; height: 26px;
    border-radius: 8px;
    background: linear-gradient(135deg, #2DD4EE, #A3E635);
    display: flex;
    align-items: center;
    justify-content: center;
}
.footer-brand-text {
    font-size: 17px;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: #fff;
}
.footer-desc {
    font-size: 13px;
    color: var(--text-mid);
    line-height: 1.7;
    max-width: 340px;
}
.footer-heading {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 18px;
    letter-spacing: 0.04em;
}
.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-links a {
    font-size: 13px;
    color: var(--text-mid);
    transition: color 0.3s ease;
}
.footer-links a:hover {
    color: var(--secondary);
}
.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 24px;
    font-size: 12px;
    color: var(--text-low);
}

/* Responsive */
@media (max-width: 1024px) {
    .cat-hero-inner { flex-direction: column; gap: 40px; text-align: center; }
    .cat-hero-content { max-width: 100%; }
    .cat-hero-content p { max-width: 100%; margin: 0 auto; }
    .cat-hero-stats { justify-content: center; }
    .video-decor { width: 200px; }
    .video-decor-2 { display: none; }
    .cat-grid { grid-template-columns: 1fr; }
    .cat-sidebar { position: static; }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .cta-card { flex-direction: column; text-align: center; padding: 40px 32px; }
}
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0; right: 0;
        flex-direction: column;
        background: rgba(7,11,18,0.95);
        backdrop-filter: blur(20px);
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid rgba(255,255,255,0.08);
        transform: translateY(-110%);
        transition: transform 0.4s ease;
        z-index: 99;
        align-items: flex-start;
    }
    .nav-links.open { transform: translateY(0); }
    .mobile-menu-btn { display: block; }
    .desktop-cta { display: none; }
    .cat-main-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr; }
    .faq-layout { grid-template-columns: 1fr; gap: 32px; }
    .cta-card { padding: 32px 24px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .video-decor { width: 100%; max-width: 240px; margin: 0 auto; }
}
@media (max-width: 520px) {
    .container-main { padding: 0 16px; }
    .cat-hero-inner { padding: 48px 16px; }
    .cat-hero h1 { font-size: 2rem; }
    .toolbar-row { flex-direction: column; gap: 12px; align-items: flex-start; }
    .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
}
/* focus visibility */
a:focus-visible, button:focus-visible {
    outline: 2px solid rgba(45,212,238,0.5);
    outline-offset: 2px;
    border-radius: 4px;
}

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --bg-primary: #070B12;
            --bg-secondary: #0D1320;
            --surface-card: #0F1626;
            --surface-glass: rgba(255, 255, 255, 0.06);
            --border-glass: rgba(255, 255, 255, 0.10);
            --border-glow: rgba(34, 211, 238, 0.4);
            --primary: #2DD4EE;
            --secondary: #A3E635;
            --accent-lime: #FACC15;
            --text-hi: rgba(255, 255, 255, 0.95);
            --text-mid: rgba(255, 255, 255, 0.70);
            --text-low: rgba(255, 255, 255, 0.45);
            --radius-card: 16px;
            --radius-btn: 12px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(45, 212, 238, 0.15);
        }

        /* ===== 基础 reset ===== */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            background: var(--bg-primary);
            color: var(--text-hi);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease;
        }
        img {
            display: block;
            max-width: 100%;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }
        a:focus-visible,
        button:focus-visible {
            outline: none;
            ring: 2px solid rgba(45, 212, 238, 0.5);
        }

        /* ===== 容器 ===== */
        .container-main {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 32px;
        }
        @media (max-width: 768px) {
            .container-main {
                padding: 0 20px;
            }
        }

        /* ===== 导航 ===== */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: transparent;
            border-bottom: 1px solid transparent;
            transition: background .3s ease, border-color .3s ease, backdrop-filter .3s ease;
        }
        .site-nav.scrolled {
            background: rgba(7, 11, 18, 0.82);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-logo-mark {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: linear-gradient(135deg, #2DD4EE, #A3E635);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            box-shadow: 0 0 14px rgba(45, 212, 238, 0.35);
        }
        .nav-logo-mark .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #070B12;
        }
        .nav-logo-text {
            font-size: 1.05rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            color: #fff;
        }
        .nav-logo-tag {
            font-size: 0.6rem;
            letter-spacing: 0.18em;
            color: rgba(255, 255, 255, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 2px 7px;
            border-radius: 999px;
            text-transform: uppercase;
            font-weight: 500;
            margin-left: 2px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-link {
            font-size: 0.875rem;
            font-weight: 500;
            letter-spacing: 0.08em;
            color: rgba(255, 255, 255, 0.6);
            position: relative;
            padding: 6px 0;
            transition: color .25s ease;
        }
        .nav-link:hover {
            color: rgba(255, 255, 255, 0.95);
        }
        .nav-link.active {
            color: #fff;
        }
        .nav-link.active::after {
            content: '';
            display: block;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--secondary);
            margin: 4px auto 0;
            box-shadow: 0 0 8px rgba(163, 230, 53, 0.6);
        }
        .nav-cta {
            font-size: 0.8rem;
            letter-spacing: 0.06em;
            color: rgba(255, 255, 255, 0.75);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 999px;
            padding: 7px 20px;
            transition: border-color .25s ease, color .25s ease, background .25s ease;
            white-space: nowrap;
        }
        .nav-cta:hover {
            border-color: rgba(45, 212, 238, 0.7);
            color: #fff;
            background: rgba(45, 212, 238, 0.08);
        }
        .mobile-menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 10px;
        }

        /* ===== 移动端菜单 ===== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            z-index: 99;
            background: rgba(7, 11, 18, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 12px 20px 20px;
            transform: translateY(-12px);
            opacity: 0;
            pointer-events: none;
            transition: all .3s ease;
        }
        .mobile-menu.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-menu-link {
            display: block;
            padding: 12px 8px;
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            letter-spacing: 0.04em;
            transition: color .2s;
        }
        .mobile-menu-link:last-child {
            border-bottom: none;
        }
        .mobile-menu-link:hover {
            color: var(--primary);
        }
        .mobile-menu-link.active {
            color: var(--secondary);
            font-weight: 600;
        }

        @media (max-width: 900px) {
            .nav-links {
                display: none;
            }
            .desktop-cta {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .mobile-menu {
                display: block;
            }
        }

        /* ===== Hero 分类页 ===== */
        .category-hero {
            position: relative;
            min-height: 48vh;
            display: flex;
            align-items: center;
            padding-top: 120px;
            padding-bottom: 60px;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, rgba(7, 11, 18, 0.96), rgba(7, 11, 18, 0.75) 50%, rgba(7, 11, 18, 0.35));
            z-index: 1;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, transparent 65%, #070B12 100%);
            z-index: 2;
        }
        .hero-scanline {
            position: absolute;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(to right, transparent, rgba(45, 212, 238, 0.5), transparent);
            z-index: 3;
            animation: scanlineMove 8s ease-in-out infinite;
        }
        .hero-scanline.s1 {
            top: 22%;
        }
        .hero-scanline.s2 {
            bottom: 30%;
            animation-delay: 3s;
        }
        @keyframes scanlineMove {
            0%,
            100% {
                opacity: 0.3;
                transform: scaleX(0.6);
            }
            50% {
                opacity: 0.8;
                transform: scaleX(1);
            }
        }
        .category-hero .container-main {
            position: relative;
            z-index: 4;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 48px;
            width: 100%;
        }
        .hero-left {
            max-width: 620px;
            flex: 1;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.72rem;
            letter-spacing: 0.24em;
            text-transform: uppercase;
            color: var(--primary);
            border: 1px solid rgba(45, 212, 238, 0.35);
            border-radius: 999px;
            padding: 5px 16px;
            margin-bottom: 20px;
            background: rgba(45, 212, 238, 0.06);
        }
        .hero-tag i {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--primary);
            display: inline-block;
            box-shadow: 0 0 8px rgba(45, 212, 238, 0.8);
        }
        .category-hero h1 {
            font-size: clamp(2.8rem, 5vw, 4.5rem);
            font-weight: 900;
            letter-spacing: 0.02em;
            line-height: 1.15;
            margin-bottom: 16px;
            color: #fff;
        }
        .category-hero h1 span {
            color: var(--primary);
        }
        .hero-sub {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
            max-width: 480px;
            margin-bottom: 30px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, #2DD4EE, #A3E635);
            color: #0B0F1A;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 13px 32px;
            border-radius: 12px;
            box-shadow: 0 0 24px rgba(45, 212, 238, 0.35);
            transition: all .25s ease;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .btn-primary:hover {
            box-shadow: 0 0 12px rgba(45, 212, 238, 0.6);
            transform: translateY(-1px);
            filter: brightness(1.08);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(45, 212, 238, 0.3);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 13px 32px;
            border-radius: 12px;
            transition: all .25s ease;
            white-space: nowrap;
        }
        .btn-outline:hover {
            border-color: rgba(45, 212, 238, 0.6);
            background: rgba(45, 212, 238, 0.06);
            color: #fff;
        }

        /* Hero 竖屏视频窗 */
        .hero-screen {
            width: 280px;
            max-width: 36vw;
            flex-shrink: 0;
            position: relative;
            border-radius: 18px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.14);
            box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45), 0 0 40px rgba(45, 212, 238, 0.08);
            transform: rotate(1.5deg);
            transition: transform .4s ease;
        }
        .hero-screen:hover {
            transform: rotate(0deg);
        }
        .hero-screen-frame {
            position: relative;
            aspect-ratio: 9 / 16;
            background: #0D1320;
        }
        .hero-screen-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .hero-screen-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.82) 0%, rgba(0, 0, 0, 0.15) 45%, rgba(0, 0, 0, 0.1) 100%);
        }
        .hero-live-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 0, 0, 0.55);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 0.68rem;
            font-weight: 600;
            letter-spacing: 0.12em;
            color: #fff;
        }
        .hero-live-badge::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #FACC15;
            box-shadow: 0 0 8px rgba(250, 204, 21, 0.8);
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.6;
                transform: scale(0.8);
            }
        }
        .hero-screen-info {
            position: absolute;
            bottom: 36px;
            left: 14px;
            z-index: 2;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .hero-screen-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            letter-spacing: 0.02em;
        }
        .hero-screen-meta {
            font-size: 0.72rem;
            color: rgba(255, 255, 255, 0.65);
        }
        .hero-screen-actions {
            position: absolute;
            right: 12px;
            bottom: 60px;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
        }
        .screen-action {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
        }
        .screen-action svg {
            width: 20px;
            height: 20px;
            color: rgba(255, 255, 255, 0.75);
            transition: color .2s;
        }
        .screen-action:hover svg {
            color: var(--primary);
        }
        .screen-action span {
            font-size: 0.62rem;
            color: rgba(255, 255, 255, 0.55);
        }
        .hero-screen-progress {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: rgba(255, 255, 255, 0.12);
            z-index: 3;
        }
        .hero-screen-progress-bar {
            height: 100%;
            background: linear-gradient(to right, #2DD4EE, #A3E635);
            border-radius: 0 4px 4px 0;
        }

        @media (max-width: 1024px) {
            .hero-screen {
                width: 220px;
            }
        }
        @media (max-width: 768px) {
            .category-hero {
                padding-top: 140px;
                padding-bottom: 40px;
                min-height: auto;
            }
            .category-hero .container-main {
                flex-direction: column;
                align-items: flex-start;
                gap: 32px;
            }
            .hero-screen {
                width: 100%;
                max-width: 340px;
                align-self: center;
                transform: none;
            }
            .hero-screen:hover {
                transform: none;
            }
        }

        /* ===== 统计条 ===== */
        .stats-bar {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            background: rgba(13, 19, 32, 0.6);
            padding: 28px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 8px;
        }
        .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            background: linear-gradient(135deg, #2DD4EE, #A3E635);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.3;
        }
        .stat-label {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 4px;
            letter-spacing: 0.05em;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* ===== 主体内容区 ===== */
        .content-section {
            padding: 80px 0;
        }
        .content-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
            align-items: start;
        }
        @media (max-width: 1024px) {
            .content-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        .section-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
            gap: 16px;
        }
        .section-heading h2 {
            font-size: clamp(1.6rem, 2.5vw, 2.2rem);
            font-weight: 700;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .section-heading h2::before {
            content: '';
            width: 4px;
            height: 26px;
            border-radius: 4px;
            background: linear-gradient(to bottom, var(--primary), var(--secondary));
            display: inline-block;
        }
        .section-more {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color .25s;
        }
        .section-more:hover {
            color: var(--primary);
        }

        /* ===== 高光卡片 ===== */
        .highlight-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        @media (max-width: 640px) {
            .highlight-grid {
                grid-template-columns: 1fr;
            }
        }
        .highlight-card {
            background: var(--surface-card);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 16px;
            overflow: hidden;
            transition: all .3s ease;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
            display: block;
        }
        .highlight-card:hover {
            border-color: rgba(45, 212, 238, 0.4);
            box-shadow: 0 0 24px rgba(45, 212, 238, 0.12), 0 8px 32px rgba(0, 0, 0, 0.3);
            transform: translateY(-2px);
        }
        .highlight-thumb {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #0D1320;
        }
        .highlight-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .highlight-card:hover .highlight-thumb img {
            transform: scale(1.04);
        }
        .highlight-cat {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(0, 0, 0, 0.55);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.7rem;
            color: #fff;
            letter-spacing: 0.05em;
            z-index: 2;
        }
        .highlight-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            background: #FACC15;
            color: #070B12;
            font-size: 0.65rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 999px;
            letter-spacing: 0.06em;
            z-index: 2;
        }
        .highlight-info {
            padding: 18px 20px 20px;
        }
        .highlight-title {
            font-size: 1rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.92);
            line-height: 1.5;
            margin-bottom: 8px;
            transition: color .25s;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .highlight-card:hover .highlight-title {
            color: var(--primary);
        }
        .highlight-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .highlight-meta .play-count {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* ===== 侧边栏 ===== */
        .sidebar-block {
            background: rgba(13, 19, 32, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }
        .sidebar-title {
            font-size: 1.1rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
            color: #fff;
        }
        .sidebar-title .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--secondary);
            box-shadow: 0 0 10px rgba(163, 230, 53, 0.6);
        }
        .top-item {
            display: grid;
            grid-template-columns: 32px 1fr;
            gap: 12px;
            padding: 14px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            align-items: start;
        }
        .top-item:last-child {
            border-bottom: none;
        }
        .top-num {
            font-size: 1.3rem;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.2);
            line-height: 1.4;
            font-style: italic;
        }
        .top-info {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .top-name {
            font-size: 0.85rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color .2s;
        }
        .top-item:hover .top-name {
            color: var(--primary);
        }
        .top-bar-wrap {
            height: 3px;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.06);
            overflow: hidden;
        }
        .top-bar {
            height: 100%;
            border-radius: 3px;
            background: linear-gradient(to right, #2DD4EE, #A3E635);
        }
        .sidebar-card {
            margin-top: 20px;
            border-radius: 14px;
            overflow: hidden;
            position: relative;
            background: url('/assets/images/coverpic/cover-8.webp') center/cover no-repeat;
            min-height: 100px;
            display: flex;
            align-items: flex-end;
            padding: 16px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .sidebar-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(7, 11, 18, 0.85), rgba(7, 11, 18, 0.2));
            border-radius: 14px;
        }
        .sidebar-card-content {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 10px;
        }
        .sidebar-card-text {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
        }
        .sidebar-card-link {
            font-size: 0.72rem;
            color: #070B12;
            background: linear-gradient(135deg, #2DD4EE, #A3E635);
            padding: 5px 12px;
            border-radius: 999px;
            font-weight: 700;
            white-space: nowrap;
            transition: filter .2s;
        }
        .sidebar-card-link:hover {
            filter: brightness(1.15);
        }

        /* ===== CTA 区 ===== */
        .cta-section {
            padding: 40px 0 80px;
        }
        .cta-card {
            position: relative;
            background: linear-gradient(135deg, rgba(45, 212, 238, 0.08), rgba(163, 230, 53, 0.05)), rgba(13, 19, 32, 0.85);
            border: 1px solid rgba(45, 212, 238, 0.2);
            border-radius: 20px;
            padding: 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            overflow: hidden;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.35);
        }
        .cta-card::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(45, 212, 238, 0.25), transparent 65%);
            pointer-events: none;
        }
        .cta-card::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(163, 230, 53, 0.18), transparent 60%);
            pointer-events: none;
        }
        .cta-text h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .cta-text p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            max-width: 440px;
            line-height: 1.7;
        }
        .cta-btn-wrap {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .cta-safe-note {
            font-size: 0.72rem;
            color: rgba(255, 255, 255, 0.4);
            text-align: center;
            letter-spacing: 0.02em;
        }
        @media (max-width: 820px) {
            .cta-card {
                flex-direction: column;
                align-items: flex-start;
                padding: 32px 24px;
            }
            .cta-btn-wrap {
                width: 100%;
                align-items: stretch;
            }
            .cta-btn-wrap .btn-primary {
                width: 100%;
            }
        }

        /* ===== FAQ 区 ===== */
        .faq-section {
            padding: 40px 0 90px;
        }
        .faq-layout {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 48px;
            align-items: start;
        }
        @media (max-width: 900px) {
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .faq-heading h2 {
            font-size: clamp(1.6rem, 2.5vw, 2.2rem);
            font-weight: 700;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }
        .faq-heading h2::before {
            content: '';
            width: 4px;
            height: 26px;
            border-radius: 4px;
            background: linear-gradient(to bottom, var(--primary), var(--secondary));
            display: inline-block;
        }
        .faq-heading p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.7;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
        }
        .faq-item {
            padding: 24px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .faq-item:first-child {
            padding-top: 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-q {
            font-size: 0.98rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.92);
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
            line-height: 1.5;
        }
        .faq-q .icon {
            font-size: 1.1rem;
            color: var(--secondary);
            line-height: 1;
            flex-shrink: 0;
        }
        .faq-a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.75;
            padding-left: 26px;
            max-width: 640px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #05080F;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 56px 0 28px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-brand-mark {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: linear-gradient(135deg, #2DD4EE, #A3E635);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .footer-brand-text {
            font-size: 1.05rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            color: #fff;
        }
        .footer-desc {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-heading {
            font-size: 0.9rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
            transition: color .2s;
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            padding-top: 24px;
            font-size: 0.72rem;
            color: rgba(255, 255, 255, 0.35);
        }
        @media (max-width: 640px) {
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }

        /* ===== 通用辅助 ===== */
        .no-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }
        .no-scrollbar::-webkit-scrollbar {
            display: none;
        }

        /* 移动端按钮容器 */
        @media (max-width: 640px) {
            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                width: 100%;
                min-height: 44px;
            }
            .section-heading {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }