:root{color-scheme:light;--paper:#f3f0e8;--ink:#171d24;--gold:#9b6816;--muted:#64645d;--line:#d7d3c8}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Yuanti SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;-webkit-font-smoothing:antialiased}::selection{background:#e3c58d;color:var(--ink)}
main{width:min(1080px,calc(100% - 80px));margin:0 auto;padding:40px 0 32px}.masthead{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-bottom:28px}.wordmark{font-family:"Arial Rounded MT Bold","Yuanti SC",sans-serif;font-size:27px;font-weight:800;letter-spacing:-.035em;white-space:nowrap}.wordmark span{color:var(--gold);font-size:.78em;letter-spacing:-.02em}.page-label{font-size:13px;color:var(--muted);white-space:nowrap}
.screen{position:relative;background:#101216;aspect-ratio:16/9;overflow:hidden;border-radius:6px}video{display:block;width:100%;height:100%;object-fit:contain;background:#101216}
.play-button{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:grid;place-items:center;width:64px;height:64px;padding:0;border:1px solid #f3f0e8;border-radius:50%;background:var(--paper);color:var(--ink);cursor:pointer;transition:background .18s ease-out,scale .18s ease-out}.play-button svg{width:26px;height:26px;fill:currentColor;margin-left:3px}.play-button:hover{background:#ead9b8;scale:1.04}
[hidden]{display:none!important}.sr-only,.play-button span{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.player-options{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:10px;min-height:44px;color:var(--muted);font-size:12px}.original{display:inline-flex;align-items:center;gap:5px;min-height:44px;color:var(--muted);text-decoration:none;text-underline-offset:4px}.original svg{width:13px;height:13px;fill:none;stroke:currentColor;stroke-width:1.4}.player-options label{display:flex;align-items:center}.player-options select{font:inherit;color:var(--muted);background:transparent;border:1px solid var(--line);border-radius:5px;min-height:44px;padding:6px 10px;cursor:pointer}
a:hover{color:var(--gold);text-decoration:underline}a:focus-visible,select:focus-visible,button:focus-visible{outline:2px solid var(--gold);outline-offset:4px}.playback-error{color:#8c3025;font-size:14px;line-height:1.7;margin:12px 0 0}.playback-error a{color:inherit}.playback-error button{font:inherit;border:0;background:none;padding:0;color:inherit;text-decoration:underline;cursor:pointer}
@media(max-width:600px){main{width:calc(100% - 32px);padding:26px 0 24px}.masthead{margin-bottom:22px;gap:12px}.wordmark{font-size:24px}.page-label{font-size:12px}.screen{border-radius:4px}.play-button{width:56px;height:56px}.play-button svg{width:24px;height:24px}.player-options{margin-top:8px}}
@media(max-height:550px) and (orientation:landscape){main{width:min(820px,calc(100% - 40px));padding-top:14px}.masthead{margin-bottom:14px}.screen{max-height:calc(100dvh - 116px);aspect-ratio:auto}video{max-height:calc(100dvh - 116px)}}
@media(prefers-reduced-motion:reduce){.play-button{transition:none}}

.player-options #status:not(.sr-only){flex:1;font-size:12px;line-height:1.6}.player-options:has(#status:not(.sr-only)) .original{display:none}@media(max-width:360px){.player-options #status:not(.sr-only){max-width:180px}}