*{margin:0;padding:0;box-sizing:border-box}html,body{margin:0;padding:0;width:100%;height:100%;overflow:hidden;font-family:Segoe UI,Microsoft JhengHei,sans-serif;background:#1a1a2e;color:#e0e0e0}body{display:flex;flex-direction:column}#toolbar{display:flex;align-items:center;gap:8px;padding:8px 12px;background:#16213e;border-bottom:1px solid #0f3460;flex-shrink:0}#toolbar button{padding:6px 16px;border:1px solid #0f3460;border-radius:4px;background:#0f3460;color:#e0e0e0;cursor:pointer;font-size:14px}#toolbar button:hover:not(:disabled){background:#1a5276}#toolbar button:disabled{opacity:.4;cursor:not-allowed}#btn-undo,#btn-redo{font-size:16px;padding:4px 10px;min-width:32px}#lbl-connected{display:flex;align-items:center;gap:4px;font-size:13px;color:#c0c0e0;cursor:pointer;-webkit-user-select:none;user-select:none}#lbl-connected 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.body-color{width:8px;height:8px}.sel-label{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sel-remove{background:none;border:none;color:#888;cursor:pointer;font-size:12px;padding:0 2px;line-height:1}.sel-remove:hover{color:#e07070}#status-bar{position:absolute;bottom:25px;left:6px;right:6px;z-index:20;display:flex;align-items:center;gap:20px;padding:6px 12px;background:#16213eeb;border:1px solid #0f3460;border-radius:4px;font-size:13px;color:#a0a0c0}#hide-tooltip{position:fixed;background:#101428eb;border:1px solid #4488cc;border-radius:4px;color:#c0d8f0;font-size:12px;padding:4px 10px;pointer-events:none;z-index:1000;opacity:0;transition:opacity .5s;white-space:nowrap}#hide-tooltip.visible{opacity:1;transition:none}#hide-tooltip.fade-out{opacity:0;transition:opacity .5s}#btn-measure.active{background:#1a6030;border-color:#4c8;color:#8fb}#snap-group{display:flex;gap:2px;margin-left:4px}.snap-btn{padding:3px 6px;border:1px solid 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#333;border-radius:3px;background:#ffffff0a;color:#888;font-size:11px;cursor:pointer;transition:all .15s;flex-shrink:0;display:flex;align-items:center;justify-content:center;padding:0}.clip-flip-btn:hover{background:#2a2a4a;color:#ddd}#clip-bottom-row{display:flex;gap:4px;justify-content:center;margin-top:2px}#clip-face-slider{--clip-color: #ff8800}#clip-face-close{width:18px;height:18px;border:1px solid #555;border-radius:3px;background:#ffffff0a;color:#e07070;font-size:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;flex-shrink:0}#clip-face-close:hover{background:#402020;color:#f88}#btn-clip-from-face,#btn-clip-reset{border:1px solid #444;border-radius:3px;background:#ffffff0a;color:#aaa;font-size:10px;padding:2px 8px;cursor:pointer}#btn-clip-from-face:hover,#btn-clip-reset:hover{background:#2a2a4a;color:#ddd}#clip-visual-label{display:flex;align-items:center;gap:2px;font-size:10px;color:#aaa;cursor:pointer;-webkit-user-select:none;user-select:none;margin-left:auto}#clip-visual-label input,#clip-bg-label input{accent-color:#4488cc;width:12px;height:12px;cursor:pointer}#clip-bg-label{display:flex;align-items:center;gap:2px;font-size:10px;color:#aaa;cursor:pointer;-webkit-user-select:none;user-select:none}#drop-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;background:#0f3460d9;display:none;align-items:center;justify-content:center;pointer-events:none}#drop-overlay.active{display:flex}.dialog-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9998;background:#0009;display:none;align-items:center;justify-content:center}.dialog-overlay.active{display:flex}.dialog-box{background:#1a1a2e;border:1px solid #0f3460;border-radius:8px;padding:16px 20px;min-width:320px;color:#e0e0e0}.dialog-title{font-size:15px;font-weight:700;margin-bottom:12px;color:#8cf}.dialog-row{margin-bottom:10px}.dialog-row>label{display:block;font-size:12px;color:#a0a0c0;margin-bottom:4px}.dialog-row input[type=text]{width:100%;padding:5px 8px;border:1px solid #0f3460;border-radius:4px;background:#12122a;color:#e0e0e0;font-size:13px;outline:none}.dialog-row input[type=text]:focus{border-color:#48c}.dialog-checks{display:flex;flex-direction:column;gap:4px}.dialog-checks label{display:flex;align-items:center;gap:6px;font-size:12px;color:#c0c0d0;cursor:pointer;-webkit-user-select:none;user-select:none}.dialog-checks input{accent-color:#4488cc}.dialog-buttons{display:flex;justify-content:flex-end;gap:8px;margin-top:14px}.dialog-buttons button{padding:5px 16px;border:1px solid #0f3460;border-radius:4px;background:#0f3460;color:#e0e0e0;cursor:pointer;font-size:13px}.dialog-buttons button:hover{background:#1a5276}#export-confirm{background:#1a5276;border-color:#48c;color:#8cf;font-weight:700}#export-confirm:hover{background:#2070a0}#lbl-dimensions{position:absolute;top:6px;right:6px;z-index:10;display:flex;align-items:center;gap:4px;font-size:12px;color:#a0a0c0;background:#101428d9;border:1px solid #0f3460;border-radius:4px;padding:3px 8px;cursor:pointer;-webkit-user-select:none;user-select:none}#lbl-dimensions input{accent-color:#4488cc}#drop-overlay-content{padding:40px 60px;border:3px dashed #44aaff;border-radius:16px;color:#8cf;font-size:24px;font-weight:700;text-align:center}