:root{color-scheme:dark;--ink:#eeeeee;--paper:#121212;--line:#444444;--muted:#b9b9b9;--accent:#dddddd}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.7 -apple-system,BlinkMacSystemFont,'Yu Gothic UI','Meiryo',sans-serif}main{max-width:1600px;margin:auto;padding:28px 32px max(24px,env(safe-area-inset-bottom))}.mast{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:20px}.eyebrow{font:12px/1.5 Georgia,serif;letter-spacing:2px;color:var(--muted);margin:0}h1{font:400 clamp(21px,2.3vw,32px)/1.5 'Yu Mincho',serif;margin:5px 0 0}.edition{font-size:14px;color:var(--muted);white-space:nowrap}.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:22px;align-items:start}.film-section{min-width:0}.film-wrap{padding:5px;background:#090909;border:1px solid var(--line);box-shadow:0 8px 25px #302a1610}video{display:block;width:100%;aspect-ratio:16/9;object-fit:contain;background:#060606}.player-controls{padding-top:16px}button{min-height:44px;padding:9px 15px;background:transparent;border:1px solid var(--line);border-radius:5px;font:inherit;font-size:14px;color:var(--ink);cursor:pointer;touch-action:manipulation}button:hover{background:#303030}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}button:disabled{opacity:.55;cursor:wait}.primary{background:var(--ink);border-color:var(--ink);color:#111;min-width:165px}.primary:hover{background:#ffffff}.row{display:flex;gap:8px;flex-wrap:wrap}.seek-row{display:flex;gap:12px;align-items:center;font-size:14px;font-variant-numeric:tabular-nums;margin:10px 0}.seek-row input{flex:1;min-width:0;height:32px;accent-color:var(--accent);cursor:pointer}.chapters{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}.chapters button{padding:6px 10px}.chapters .active{background:#393939;border-color:#aaaaaa}.status{font-size:14px;color:var(--muted);margin:10px 0 0;min-height:24px}.music-card{background:#1d1d1d;border:1px solid var(--line);padding:15px;min-width:0}.music-card h2{font:400 22px/1.5 'Yu Mincho',serif;margin:6px 0 0}.artist{font-size:14px;color:var(--muted);margin:2px 0 13px}#youtube-player{width:100%;height:216px;display:block;border:0;background:#252525;min-width:200px;min-height:200px}.note,.help{font-size:14px;color:var(--muted)}.note{margin:14px 0 0}.help{border-top:1px solid var(--line);padding-top:12px;margin-top:14px}.help summary{cursor:pointer}.help button{margin:4px 3px 0 0}.error{background:#2b2020;border:1px solid #9e7878;padding:12px;margin-top:12px;font-size:14px}.error[hidden]{display:none}.error p{margin:0 0 10px}.error a{display:block;margin-top:10px}a{color:var(--accent)}footer{border-top:1px solid var(--line);margin-top:26px;padding-top:16px;color:var(--muted);font-size:14px}footer p{margin:12px 0 6px}.share-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.sync{font-size:12px;font-variant-numeric:tabular-nums}.layout.theater{position:fixed;inset:0;z-index:20;padding:max(14px,env(safe-area-inset-top)) max(14px,env(safe-area-inset-right)) max(14px,env(safe-area-inset-bottom)) max(14px,env(safe-area-inset-left));background:var(--paper);overflow:auto}.layout:fullscreen{background:var(--paper);padding:20px;overflow:auto;width:100%;height:100%}body.expanded{overflow:hidden}
@media(max-width:900px){main{padding:20px}.layout{grid-template-columns:minmax(0,1fr) 260px;gap:16px}.music-card{padding:12px}.music-card h2{font-size:20px}}
@media(max-width:700px){main{padding:18px 12px max(20px,env(safe-area-inset-bottom))}.mast{display:block;margin-bottom:14px}.edition{display:block;font-size:12px;margin-top:3px}h1{font-size:21px}.layout{grid-template-columns:minmax(0,1fr);gap:18px}.film-wrap{padding:4px}.player-controls{padding-top:12px}.row{gap:7px}.primary{flex:1;min-width:156px}.row button{padding-inline:11px}#expand{margin-left:auto}.seek-row{margin:7px 0}.chapters{gap:6px}.chapters button{padding-inline:5px}.music-card{padding:14px;max-width:none}#youtube-player{height:216px;max-width:420px;margin:auto}.note{margin-top:10px}.music-card .eyebrow{font-size:12px}footer{margin-top:20px}.help{margin-top:12px}}
@media(orientation:landscape) and (max-height:550px) and (min-width:650px){main{padding:12px}.mast{margin-bottom:10px}.mast h1{font-size:20px}.edition{display:none}.layout,.layout.theater{grid-template-columns:minmax(0,1fr) 232px;gap:12px}.music-card{padding:10px}.music-card h2{font-size:18px}.artist{margin-bottom:8px}.music-card .eyebrow{display:none}.player-controls{padding-top:9px}.row button{padding:6px 10px}.status{margin-top:6px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

.mast{border-bottom:1px solid var(--line);padding-bottom:18px}.film-wrap{box-shadow:0 14px 40px #0006}.music-card{border-top:2px solid #d6d6d6}.edition{font-variant-numeric:tabular-nums}.primary{font-weight:600}.artist{margin-bottom:16px}.sync{font-size:13px}.note{line-height:1.8}