:root {
  --bg: #070b16;
  --panel: rgba(12, 18, 34, 0.7);
  --line: rgba(255,255,255,0.14);
  --text: #f5f7ff;
  --muted: #b7bfd8;
  --accent: #ff6b8f;
  --accent-2: #84f3ff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: "PingFang SC", "Microsoft YaHei", sans-serif; background: radial-gradient(circle at top, rgba(111,124,255,.18), transparent 34%), var(--bg); color: var(--text); }
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; height: auto; border: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.mast-pn4lyz, .head-pn4lyz { position: relative; padding: 22px clamp(18px, 4vw, 56px) 48px; overflow: hidden; }
.veil-pn4lyz, .nav-wrap-pn4lyz { backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px); }
.topbar-pn4lyz, .nav-wrap-pn4lyz { display: grid; grid-template-columns: 1.1fr 1fr auto; gap: 20px; align-items: center; padding: 16px 18px; border: 1px solid var(--line); border-radius: 24px; background: rgba(8,12,24,.52); position: sticky; top: 14px; z-index: 10; }
.brand-pn4lyz, .mark-pn4lyz { display: flex; gap: 14px; align-items: center; min-width: 0; }
.brand-pn4lyz svg, .mark-pn4lyz svg { width: 64px; height: 64px; flex: none; }
.brand-pn4lyz h1, .mark-pn4lyz h1 { font-size: clamp(26px, 3vw, 38px); margin: 0; line-height: 1.05; }
.brand-pn4lyz p, .mark-pn4lyz p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.nav-pn4lyz, .strip-pn4lyz { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
.nav-pn4lyz a, .strip-pn4lyz a, .footer-pn4lyz nav a { padding: 10px 14px; border-radius: 999px; border: 1px solid rgba(255,255,255,.08); background: rgba(255,255,255,.03); transition: transform .3s ease, border-color .3s ease, background .3s ease; }
.nav-pn4lyz a:hover, .strip-pn4lyz a:hover, .footer-pn4lyz nav a:hover { transform: translateY(-2px); border-color: rgba(255,255,255,.22); background: rgba(255,255,255,.08); }
.search-pn4lyz, .lookup-pn4lyz { display: flex; gap: 10px; align-items: center; border: 1px solid var(--line); border-radius: 999px; padding: 8px; background: rgba(255,255,255,.05); }
.search-pn4lyz input, .lookup-pn4lyz input { width: min(300px, 36vw); border: 0; outline: 0; background: transparent; color: var(--text); padding: 10px 14px; }
.search-pn4lyz button, .lookup-pn4lyz button, .play-pn4lyz { border: 0; cursor: pointer; }
.search-pn4lyz button, .lookup-pn4lyz button { border-radius: 999px; padding: 12px 16px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #07111f; font-weight: 700; }
.hero-pn4lyz, .hero-panel-pn4lyz { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(24px, 4vw, 48px); align-items: center; padding-top: 34px; }
.hero-copy-pn4lyz h2, .copy-pn4lyz h2 { font-size: clamp(34px, 6vw, 72px); line-height: 1.02; margin: 10px 0 18px; max-width: 12ch; }
.hero-copy-pn4lyz p, .copy-pn4lyz p { font-size: 18px; line-height: 1.8; color: var(--muted); max-width: 65ch; }
.eyebrow-pn4lyz, .mini-pn4lyz { display: inline-flex; padding: 8px 12px; border-radius: 999px; background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.12); color: #dbe4ff; }
.hero-tags-pn4lyz, .chips-pn4lyz { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.hero-tags-pn4lyz span, .chips-pn4lyz span { padding: 10px 14px; border-radius: 999px; background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.12); }
.hero-media-pn4lyz, .visual-pn4lyz { border-radius: 30px; overflow: hidden; border: 1px solid rgba(255,255,255,.15); background: rgba(255,255,255,.04); box-shadow: 0 30px 80px rgba(0,0,0,.35); }
.shell-pn4lyz, .wrap-pn4lyz { padding: 12px clamp(18px, 4vw, 56px) 64px; }
.crumbs-pn4lyz, .crumb-line-pn4lyz { margin-bottom: 24px; }
.crumbs-pn4lyz ol, .crumb-line-pn4lyz ol { list-style: none; display: flex; gap: 10px; padding: 0; margin: 0; color: var(--muted); flex-wrap: wrap; }
.crumbs-pn4lyz li + li::before, .crumb-line-pn4lyz li + li::before { content: '/'; margin-right: 10px; color: rgba(255,255,255,.28); }
.grid-pn4lyz { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); gap: 24px; align-items: start; }
.feature-stack-pn4lyz, .mosaic-pn4lyz { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 20px; }
.video-card-pn4lyz, .clip-pn4lyz, .insight-pn4lyz, .contact-pn4lyz, .review-box-pn4lyz, .json-box-pn4lyz, .faq-pn4lyz, .faq-band-pn4lyz { background: var(--panel); border: 1px solid var(--line); border-radius: 28px; box-shadow: 0 20px 60px rgba(0,0,0,.24); }
.video-card-pn4lyz { grid-column: span 12; display: grid; grid-template-columns: minmax(220px, 340px) minmax(0, 1fr); overflow: hidden; }
.video-card-pn4lyz:nth-child(2) { grid-column: span 7; }
.video-card-pn4lyz:nth-child(3) { grid-column: span 5; }
.thumb-pn4lyz, .frame-pn4lyz { position: relative; min-height: 240px; overflow: hidden; }
.thumb-pn4lyz img, .frame-pn4lyz img { height: 100%; object-fit: cover; transform: scale(1.02); transition: transform .45s ease, filter .45s ease; }
.thumb-pn4lyz::after, .frame-pn4lyz::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent, rgba(0,0,0,.46)); opacity: .72; transition: opacity .35s ease; }
.play-pn4lyz { position: absolute; left: 50%; top: 50%; width: 74px; height: 74px; transform: translate(-50%, -50%); border-radius: 50%; background: rgba(255,255,255,.16); backdrop-filter: blur(10px); }
.play-pn4lyz::before { content: ''; position: absolute; left: 30px; top: 23px; border-left: 18px solid white; border-top: 12px solid transparent; border-bottom: 12px solid transparent; }
.video-card-pn4lyz.is-active img, .clip-pn4lyz.is-active img { transform: scale(1.08); filter: saturate(1.1); }
.card-copy-pn4lyz, .text-pn4lyz { padding: 24px; }
.card-copy-pn4lyz span, .text-pn4lyz strong { display: inline-flex; margin-bottom: 12px; color: var(--accent-2); }
.card-copy-pn4lyz h3, .text-pn4lyz h3, .insight-pn4lyz h3, .contact-pn4lyz h3, .review-box-pn4lyz h3, .json-box-pn4lyz h3, .faq-pn4lyz h3, .faq-band-pn4lyz h3 { margin: 0 0 12px; font-size: clamp(22px, 3vw, 32px); }
.card-copy-pn4lyz p, .text-pn4lyz p, .insight-pn4lyz li, .contact-pn4lyz p, .review-box-pn4lyz li, .json-box-pn4lyz p, .faq-pn4lyz p, .faq-band-pn4lyz p { color: var(--muted); line-height: 1.8; }
.insight-pn4lyz, .review-box-pn4lyz, .json-box-pn4lyz { padding: 24px; }
.insight-pn4lyz ul, .review-box-pn4lyz ul { margin: 0; padding-left: 18px; }
.share-pn4lyz { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
.share-pn4lyz a { padding: 10px 12px; border-radius: 999px; border: 1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.04); }
.contact-pn4lyz { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 18px; padding: 24px; margin-top: 24px; }
.contact-pn4lyz pre, .json-box-pn4lyz pre { margin: 0; overflow: auto; padding: 18px; border-radius: 18px; background: rgba(255,255,255,.04); color: #dbe4ff; white-space: pre-wrap; word-break: break-word; }
.contact-media-pn4lyz img { height: 100%; object-fit: cover; border-radius: 20px; }
.faq-pn4lyz, .faq-band-pn4lyz { padding: 24px; margin-top: 24px; }
.faq-pn4lyz details, .faq-band-pn4lyz details { border-top: 1px solid rgba(255,255,255,.1); padding: 14px 0; }
.faq-pn4lyz details:first-of-type, .faq-band-pn4lyz details:first-of-type { border-top: 0; }
.faq-pn4lyz summary, .faq-band-pn4lyz summary { cursor: pointer; font-weight: 700; list-style: none; }
.dual-pn4lyz { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; margin-top: 24px; }
.clip-pn4lyz { grid-column: span 6; overflow: hidden; }
.clip-pn4lyz:first-child { grid-column: span 7; }
.clip-pn4lyz:last-child { grid-column: span 5; }
.footer-pn4lyz { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding: 28px clamp(18px, 4vw, 56px) 60px; color: var(--muted); }
.footer-pn4lyz nav { display: flex; flex-wrap: wrap; gap: 10px; }
@media (max-width: 980px) {
  .topbar-pn4lyz, .nav-wrap-pn4lyz, .hero-pn4lyz, .hero-panel-pn4lyz, .grid-pn4lyz, .contact-pn4lyz, .dual-pn4lyz { grid-template-columns: 1fr; }
  .search-pn4lyz input, .lookup-pn4lyz input { width: 100%; min-width: 0; }
  .video-card-pn4lyz, .clip-pn4lyz, .video-card-pn4lyz:nth-child(2), .video-card-pn4lyz:nth-child(3), .clip-pn4lyz:first-child, .clip-pn4lyz:last-child { grid-column: span 12; grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .mast-pn4lyz, .head-pn4lyz, .shell-pn4lyz, .wrap-pn4lyz, .footer-pn4lyz { padding-left: 16px; padding-right: 16px; }
  .brand-pn4lyz h1, .mark-pn4lyz h1 { font-size: 24px; }
  .hero-copy-pn4lyz h2, .copy-pn4lyz h2 { font-size: 40px; max-width: none; }
}