:root{--bg:#21252b;--bg2:#2a2f37;--panel:#1e2228eb;--line:#ffffff14;--ink:#e6e9ed;--ink-dim:#9aa4b1;--accent:#f0b429;--accent-ink:#2a2000;--danger:#e5484d;--ok:#46a758;--shadow:0 10px 30px #00000059;--radius:12px}*{box-sizing:border-box}html,body{height:100%;color:var(--ink);user-select:none;-webkit-text-size-adjust:100%;font-variant-numeric:tabular-nums;background:#c3cdd6;margin:0;padding:0;font-family:Hiragino Sans,Hiragino Kaku Gothic ProN,Yu Gothic Medium,Yu Gothic,system-ui,sans-serif;overflow:hidden}#game{touch-action:none;cursor:crosshair;z-index:0;display:block;position:fixed;inset:0}#game.tool-erase{cursor:no-drop}#game.tool-paint{cursor:cell}#game.tool-pick{cursor:copy}#game.presenting{cursor:pointer}#app{z-index:10;pointer-events:none;position:fixed;inset:0}#app .panel{pointer-events:auto;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:none;transition:opacity .35s}body.presenting 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var(--accent);transform:scale(1.12)}.bar{z-index:20;align-items:center;gap:6px;padding:7px 10px;display:flex;position:fixed;bottom:14px;left:50%;transform:translate(-50%)}.bar[hidden]{display:none}.bar button{width:34px;height:34px;color:var(--ink-dim);cursor:pointer;background:0 0;border:none;border-radius:9px;justify-content:center;align-items:center;padding:0;transition:background .12s,color .12s;display:flex}.bar button svg{width:18px;height:18px}.bar button:hover{background:var(--bg2);color:var(--ink)}.bar .cnt{color:var(--ink);text-align:center;min-width:58px;font-size:12px;font-weight:600}.bar button.txt{width:auto;padding:0 12px;font-family:inherit;font-size:12px;font-weight:700}#selbar{z-index:22;bottom:64px}#selbar .cnt{color:var(--accent);min-width:34px}#bandbox{border:1.5px dashed var(--accent);pointer-events:none;z-index:30;background:#f0b42914;border-radius:3px;display:none;position:fixed}#game.tool-select{cursor:default}#game.pasting{cursor:copy}.bar 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