/* 作者：abin；自适应画布和触屏方向键。 */
*{box-sizing:border-box}body{margin:0;background:#0d1926;color:#d8eee9;font:14px system-ui}main{max-width:1100px;margin:auto;padding:14px}header{display:flex;justify-content:space-between;color:#72e6c6;gap:12px}nav{display:flex;gap:8px;flex-wrap:wrap}button{background:#24394c;color:#fff;border:1px solid #4b7085;border-radius:7px;padding:8px 12px;cursor:pointer;touch-action:none}button:disabled{opacity:.4;cursor:default}button:focus-visible,canvas:focus-visible{outline:2px solid #7cf7dd}#canvas{display:block;width:100%;aspect-ratio:40/22;background:#09101c;border:1px solid #355268;border-radius:8px}#status{font-variant-numeric:tabular-nums;font-size:13px}#description{min-height:20px}#touch{text-align:center;margin-top:8px}#touch button{font-size:19px;min-width:54px;min-height:40px;margin:2px}.hint,small{color:#adc2cb;font-size:12px}a{color:#72e6c6}@media(min-width:850px) and (pointer:fine){#touch{display:none}}/* 作者：abin；窄屏把方向键放到一行，保证嵌入播放器中可见。 */
@media(max-width:600px){main{padding:8px}header{font-size:12px}#description{font-size:11px;margin:6px 0;min-height:0}nav{gap:5px}nav button{font-size:11px;padding:6px 8px}#status{font-size:11px;margin:8px 0}#touch{display:flex;justify-content:center;gap:5px;margin:8px 0}#touch>div{display:contents}#touch button{min-height:44px;min-width:48px;margin:0}.hint{display:none}small{font-size:10px;display:block}}