:root{--bg: #09090a;--panel: #0c0c0e;--line: rgba(102, 102, 111, .35);--c1: #ffffff;--c2: #66666f;--accent: #d94a38}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;overflow:hidden;background:var(--bg);font-family:Microsoft YaHei,PingFang SC,system-ui,sans-serif;color:var(--c2)}#app{display:flex;width:100%;height:100%}#stage{position:relative;flex:1;min-width:0}#gl{display:block;width:100%;height:100%;touch-action:none}#hud{position:absolute;top:18px;left:22px;pointer-events:none;-webkit-user-select:none;user-select:none}#hud .title{font-family:ui-monospace,Cascadia Mono,Consolas,monospace;font-size:11px;letter-spacing:.42em;color:#ffffffd9}#backend{margin-top:8px;font-family:ui-monospace,Consolas,monospace;font-size:9px;letter-spacing:.3em;color:var(--c2)}#hud .subtitle{margin-top:4px;font-family:ui-monospace,Consolas,monospace;font-size:9px;letter-spacing:.3em;color:#d27864bf}#hint{position:absolute;left:22px;bottom:16px;font-family:ui-monospace,Consolas,monospace;font-size:9px;letter-spacing:.28em;color:#66666fbf;pointer-events:none;-webkit-user-select:none;user-select:none}#btn-menu{display:none;position:absolute;top:14px;right:14px;z-index:30;appearance:none;width:42px;height:42px;background:#0c0c0ecc;border:1px solid var(--line);color:var(--c1);font-size:18px;line-height:1;cursor:pointer;-webkit-user-select:none;user-select:none}#backdrop{display:none;position:fixed;inset:0;z-index:39;background:#0000008c;opacity:0;pointer-events:none;transition:opacity .3s ease}#backdrop.show{opacity:1;pointer-events:auto}#loading{position:fixed;inset:0;z-index:50;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;background:var(--bg);transition:opacity .6s ease}#loading.hide{opacity:0;pointer-events:none}#loading .t{font-family:ui-monospace,Consolas,monospace;font-size:12px;letter-spacing:.5em;color:#ffffffe6}#loading-bar-track{width:220px;height:1px;background:#66666f4d}#loading-bar{width:0%;height:1px;background:#fff;transition:width .25s ease}#side{position:relative;width:400px;min-width:340px;height:100%;display:flex;flex-direction:column;background:var(--panel);border-left:1px solid rgba(255,255,255,.06)}#side-head{display:none}#side-canvas{display:block;width:100%;flex:1;min-height:0}#controls{display:flex;flex-direction:column;gap:8px;padding:12px 18px 16px;border-top:1px solid rgba(255,255,255,.06)}.controls-row{display:flex;gap:10px}#controls button{flex:1;appearance:none;background:transparent;border:1px solid var(--line);color:var(--c2);font-family:ui-monospace,Consolas,monospace;font-size:10px;letter-spacing:.2em;padding:9px 0;cursor:pointer;transition:color .2s,border-color .2s}#controls button:hover:not(:disabled){color:var(--c1);border-color:#ffffff8c}#controls button:disabled{opacity:.35;cursor:default}#btn-replay.live{color:#fff;border-color:#ffffffb3;animation:livePulse 1.6s ease infinite}@keyframes livePulse{0%,to{box-shadow:0 0 #ffffff1f}50%{box-shadow:0 0 14px #ffffff1f}}@media(max-width:900px){#side{width:320px;min-width:280px}}@media(max-width:768px){#btn-menu{display:block}#hint{display:none}#side{position:fixed;top:0;right:0;height:100%;width:min(86vw,360px);min-width:0;z-index:40;transform:translate(105%);transition:transform .3s cubic-bezier(.22,.8,.3,1);box-shadow:-12px 0 40px #0009}#side.open{transform:translate(0)}#side-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex:0 0 auto;padding:10px 12px 10px 16px;border-bottom:1px solid rgba(255,255,255,.06)}#side-head .sh-title{font-family:ui-monospace,Consolas,monospace;font-size:10px;letter-spacing:.3em;color:var(--c2);-webkit-user-select:none;user-select:none}#btn-close-side{appearance:none;width:40px;height:40px;flex:0 0 auto;display:flex;align-items:center;justify-content:center;background:#ffffff0a;border:1px solid var(--line);color:var(--c1);font-size:15px;line-height:1;cursor:pointer;-webkit-user-select:none;user-select:none;transition:background .2s,border-color .2s}#btn-close-side:active{background:#ffffff24;border-color:#ffffff80}}