:root{--ink:#1f2328;--muted:#62676e;--line:#d6d6d2;--line-strong:#a9aaa6;--paper:#fff;--tray:#f5f5f2;--step:#ecece8;--seal:#b8322a;--complete:#2f7045;--complete-wash:#eaf4ed;--hanzi:"PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Noto Sans CJK SC", sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;font-family:Segoe UI,system-ui,-apple-system,Helvetica Neue,Arial,sans-serif;font-size:15px;line-height:1.45}*{box-sizing:border-box}html,body,#root{height:100%}body{min-width:280px;margin:0;overflow:hidden}h1,h2,h3,p,ol,ul{margin:0}ol,ul{padding:0;list-style:none}button,input{font:inherit;color:inherit;-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}:focus-visible{outline:2px solid var(--ink);outline-offset:2px}[lang=zh-Hans]{font-family:var(--hanzi)}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;width:1px;height:1px;margin:-1px;position:absolute;overflow:hidden}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}}.app{grid-template-columns:minmax(0,1fr) 320px;height:100%;display:grid}.workspace{background:var(--paper);position:relative;overflow:hidden}.board,.scene{position:absolute;inset:0}.scene canvas{touch-action:none;display:block}.board-tiles{pointer-events:none;position:absolute;inset:0}.board-tile{color:#0000;pointer-events:none;background:0 0;border:0;border-radius:10px;width:96px;height:50px;position:absolute;transform:translate(-50%,-50%)}.board-tile:focus-visible{outline-offset:3px}.no-canvas .board-tile{pointer-events:auto;color:var(--ink);background:var(--paper);border:1.5px solid var(--line)}.no-canvas .board-tile[aria-pressed=true]{border-color:var(--ink)}.no-canvas .board-tile.complete{background:var(--complete-wash);border-color:var(--complete)}.no-canvas .board-tile span{font-size:24px}.canvas-note,.board-empty{text-align:center;width:min(320px,80%);color:var(--muted);pointer-events:none;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.canvas-note{top:30%}.corner{padding:16px 20px;position:absolute}.top-left{pointer-events:none;top:0;left:0}.wordmark{letter-spacing:-.01em;font-size:16px;font-weight:600}.count{color:var(--muted);font-variant-numeric:tabular-nums;font-size:13px}.save-error{color:var(--seal);margin-top:4px;font-size:13px}.top-right{top:0;right:0}.text-button{background:var(--tray);white-space:nowrap;border:0;border-radius:999px;padding:7px 14px;font-size:14px}.text-button:hover:not(:disabled){background:var(--step)}.menu{background:var(--paper);z-index:5;border-radius:12px;min-width:190px;padding:6px;position:absolute;top:54px;right:20px;box-shadow:0 0 0 1px #1f232814,0 10px 30px #1f232824}.menu button{text-align:left;background:0 0;border:0;border-radius:8px;width:100%;padding:9px 12px;display:block}.menu button:hover{background:var(--tray)}.made{background:var(--paper);border-radius:12px;width:min(400px,100% - 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