:root{color-scheme:dark;font-family:-apple-system,BlinkMacSystemFont,"Noto Sans TC",sans-serif;background:#0b111b;color:#f4f5f7;--gold:#f1ca58;--muted:#aab8c9;--line:#2d3b50}*{box-sizing:border-box}body{margin:0}main{max-width:1060px;margin:auto;padding:calc(24px + env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) calc(36px + env(safe-area-inset-bottom)) max(16px,env(safe-area-inset-left))}button,input,a{-webkit-tap-highlight-color:transparent}button,.button{font:inherit;font-weight:650;min-height:46px;padding:11px 17px;border:1px solid transparent;border-radius:12px;background:var(--gold);color:#19190e;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;text-align:center}button:disabled{opacity:.45;cursor:default}button:hover:not(:disabled),.button:hover{filter:brightness(1.12)}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #fff;outline-offset:3px}.quiet{background:#1c293a;border-color:var(--line);color:#f4f5f7}.text-button{background:transparent;color:var(--gold);padding:8px 6px}a{color:var(--gold);text-underline-offset:4px}h1{font-size:clamp(27px,5vw,36px);margin:0;letter-spacing:.025em}h2{font-size:22px;margin:0 0 12px;line-height:1.45}p,li{line-height:1.65}p{margin:10px 0}label{display:block;margin:14px 0 8px;font-weight:650}input{width:100%;min-height:49px;background:#0c1420;border:1px solid #4d6079;border-radius:12px;color:#fff;font-size:16px;padding:12px}.eyebrow{font-size:13px;letter-spacing:.1em;color:var(--gold);margin:0 0 8px}.topbar,.section-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.topbar{margin-bottom:24px}.topbar button{font-size:14px}.notice{padding:12px 15px;border-left:3px solid #71849a;border-radius:8px;background:#172130;min-height:48px;margin-bottom:18px;line-height:1.5}.notice[data-kind=error],#version-error,#custom-error{color:#ffb5b5}.notice[data-kind=success]{border-color:#92d5b4}.mode-tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:20px}.mode-tabs button{background:#162132;color:#bdc9d8;line-height:1.5}.mode-tabs button[aria-pressed=true]{background:#f1ca58;color:#19190e}.card{background:#131e2e;border:1px solid var(--line);border-radius:20px;padding:22px;margin-bottom:22px}.player-card{border-color:#685e3d}.badge{font-size:12px;background:#263347;border:1px solid var(--line);border-radius:30px;padding:5px 10px;white-space:nowrap;color:#d1dce8}.muted{color:var(--muted)}.fine{font-size:13px}.play-controls{display:grid;grid-template-columns:1fr 1.3fr 1fr;gap:8px;margin:16px 0 8px}.small-controls{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:8px 0}.small-controls>button{flex:1}.small-controls>.text-button{font-size:14px}#player-frame{aspect-ratio:16/9;background:#000;margin:16px 0;border-radius:12px;overflow:hidden}#youtube-player{width:100%;height:100%;min-height:200px}#player-message{color:#e9ce86;font-size:14px}#original[aria-pressed=true],#accompaniment[aria-pressed=true]{border-color:var(--gold);color:var(--gold)}.library{margin:32px 0}#search-form{display:flex;gap:8px}#search-form input{flex:1;min-width:0}.chips{display:flex;gap:8px;overflow-x:auto;padding:16px 0 8px}.chips button{white-space:nowrap;border-radius:30px;padding:9px 17px;background:#182538;color:#c2cfdf}.chips button[aria-pressed=true]{background:#f1ca58;color:#19190e}.song-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.song-button{width:100%;text-align:left;background:#142031;border:1px solid var(--line);color:#fff;display:flex;justify-content:space-between;gap:10px;min-height:88px}.song-button strong,.song-button small{display:block}.song-button strong{font-size:18px;margin-bottom:5px}.song-button small{color:#aab8c9;font-size:13px}.song-button .code{font-size:13px;white-space:nowrap;color:var(--gold)}#more{width:100%;margin-top:16px}.queue-item{display:flex;align-items:center;gap:8px;padding:12px 0;border-top:1px solid var(--line)}.queue-item>span{flex:1;min-width:0;overflow-wrap:anywhere}.queue-item small{display:block;color:var(--muted);margin-top:4px}.queue-item button{padding:6px 10px;min-width:40px;font-size:14px}footer{border-top:1px solid var(--line);padding-top:15px}dialog{background:#152235;color:#f4f5f7;border:1px solid #667389;border-radius:20px;width:min(94vw,620px);max-height:88dvh;padding:24px;overflow:auto}dialog::backdrop{background:#000b}.close{float:right;margin:0 0 14px 12px}dialog h2{clear:both;padding-top:4px}dialog form>button:not(.close){margin-top:16px}#remote-open{margin:12px 0}#remote-form>button{margin-top:12px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}@media(max-width:600px){.card{padding:16px;border-radius:16px}.song-grid{grid-template-columns:1fr}.topbar{align-items:flex-start}.mode-tabs button{font-size:14px;padding:11px 8px}h2{font-size:20px}.section-head{align-items:flex-start}#add-video{font-size:14px;white-space:nowrap;padding:8px 10px}.queue-item{flex-wrap:wrap}.queue-item>span{min-width:calc(100% - 150px)}#youtube-player{min-height:0}}