:root{color-scheme:light;--ink:#172238;--muted:#637088;--blue:#235ae4;--line:#e1e5ed;--surface:#f6f7fa;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;font-size:16px}
*{box-sizing:border-box}
body{margin:0;background:var(--surface);color:var(--ink);line-height:1.6}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,video:focus-visible{outline:3px solid var(--blue);outline-offset:5px}
.topbar{max-width:1200px;margin:auto;padding:24px 32px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:20px}
.brand{display:inline-flex;align-items:center;gap:12px;font-weight:650;white-space:nowrap}
.brand-mark{display:grid;place-items:center;background:var(--ink);color:#fff;width:34px;height:34px;border-radius:9px;font-size:19px;font-weight:750}
.year,.back-link{font-size:.875rem;color:var(--muted)}
.back-link{padding:8px 0}
.gallery{max-width:1200px;margin:0 auto;padding:44px 32px 60px}
.page-heading{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:28px;gap:20px}
.eyebrow{font-size:.875rem;letter-spacing:.08em;color:var(--blue);font-weight:600;margin:0 0 8px}
h1{font-size:clamp(1.6rem,3vw,2.2rem);line-height:1.3;letter-spacing:-.025em;margin:0;font-weight:700}
.heading-note{font-size:.9375rem;color:var(--muted);margin:0 0 3px}
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:box-shadow .18s,border-color .18s,transform .18s}
.cover{aspect-ratio:16/9;position:relative;background:#e9edf4;border-bottom:1px solid var(--line);overflow:hidden}
.cover img{display:block;width:100%;height:100%;object-fit:cover}
.play-badge{position:absolute;inset:0;margin:auto;width:48px;height:48px;display:grid;place-items:center;border-radius:50%;background:rgba(19,31,53,.85);color:white;font-size:17px;box-shadow:0 2px 12px #0003;padding-left:3px}
.duration{position:absolute;right:12px;bottom:10px;background:#122035df;color:white;padding:2px 8px;border-radius:5px;font-size:.8125rem;font-variant-numeric:tabular-nums}
.card-info{padding:20px 22px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.card-info>div{display:flex;align-items:center;gap:14px;min-width:0}
.item-number{font-size:.8125rem;color:var(--muted);font-variant-numeric:tabular-nums}
.card h2{font-size:1.125rem;line-height:1.5;margin:0;font-weight:650}
.card-arrow{font-size:1.4rem;color:var(--blue)}
.footer{max-width:1136px;margin:auto;padding:22px 0 30px;border-top:1px solid var(--line);display:flex;gap:16px;justify-content:space-between;font-size:.8125rem;color:var(--muted)}
.watch-layout{max-width:1200px;margin:auto;padding:40px 32px 64px;display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:36px;align-items:start}
.viewer{min-width:0}
.viewer h1{margin-bottom:24px}
.player-shell{background:#0e1420;border-radius:12px;overflow:hidden;aspect-ratio:16/9}
video{width:100%;height:100%;display:block;object-fit:contain}
.video-meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:.875rem;margin-top:15px;flex-wrap:wrap}
.playlist{padding-top:4px}
.playlist h2{font-size:1rem;font-weight:650;margin:0 0 18px;display:flex;align-items:center;justify-content:space-between}
.playlist h2 span{font-size:.8125rem;color:var(--muted)}
.playlist-link{display:flex;gap:12px;align-items:center;padding:12px 8px;margin:0 -8px 6px;border-radius:9px;border:1px solid transparent}
.playlist-link[aria-current="page"]{background:#eaf0ff;border-color:#d3dfff;color:#204cad}
.playlist-link img{width:88px;aspect-ratio:16/9;object-fit:cover;border-radius:5px;border:1px solid #dbe0e8}
.playlist-link strong{font-size:.9375rem;font-weight:600;display:block}
.playlist-link small{font-size:.8125rem;display:block;color:var(--muted);margin-top:3px}
.error{border:1px solid #e1c3b8;border-radius:8px;padding:14px;background:#fff5ef;color:#81350f;font-size:.9375rem}
.error button{border:0;padding:10px 16px;background:#81350f;color:white;border-radius:6px;font:inherit;cursor:pointer;margin:8px}
[hidden]{display:none!important}
@media(hover:hover){.card:hover{border-color:#b6c7ee;box-shadow:0 7px 24px #25334a0c;transform:translateY(-3px)}.playlist-link:hover{background:#edf1f7}.back-link:hover{color:var(--blue)}}
@media(max-width:850px){.watch-layout{grid-template-columns:1fr;gap:32px}.playlist-link img{width:112px}.playlist{border-top:1px solid var(--line);padding-top:24px}.footer{margin-left:32px;margin-right:32px}}
@media(max-width:580px){.topbar{padding:17px 20px}.gallery{padding:30px 20px 40px}.page-heading{display:block;margin-bottom:22px}.heading-note{margin-top:12px}.card-grid{grid-template-columns:1fr;gap:20px}.card-info{padding:17px 18px}.watch-layout{padding:28px 16px 40px}.viewer h1{margin-bottom:18px}.footer{margin:0 20px;flex-wrap:wrap;gap:4px;padding-bottom:24px}.footer span{flex-basis:100%}.brand{gap:9px}.year{font-size:.8125rem}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}