:root{--blue:#4a90e2;--blue-dk:#357abd;--green:#52c41a;--green-dk:#389e0d;--bg:#f8f9fa;--card:#ffffff;--border:#e0e0e0;--text:#333333;--muted:#888888;--radius:10px;--purple:#7c3aed;--purple-dk:#6d28d9;--purple-light:#ede9fe}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;font-size:14px;color:var(--text);background:var(--bg);min-height:100vh;overscroll-behavior:none}#header{background:var(--card);border-bottom:1px solid var(--border);padding:14px 24px;position:sticky;top:0;z-index:100;box-shadow:0 1px 6px rgba(0,0,0,.06)}#header h1{font-size:18px;font-weight:700;color:var(--blue);letter-spacing:.3px}#main{display:flex;flex-direction:column;height:100vh}#panel{display:flex;gap:16px;padding:14px 20px;background:var(--card);border-bottom:1px solid var(--border);box-shadow:0 2px 8px rgba(0,0,0,.04)}#ctrl-box{flex:1;display:flex;flex-direction:column;gap:8px;justify-content:center}.info-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:#fafafa;padding:8px 12px;border-radius:8px;border:1px solid #eee}.lbl{color:var(--blue);font-weight:600;font-size:13px;white-space:nowrap}.info-row input{flex:1;min-width:80px;padding:7px 10px;border:1px solid var(--border);border-radius:6px;background:#fff;color:var(--text);font-size:12px;font-family:Consolas,Monaco,monospace;outline:0}.act-row{display:flex;align-items:center;gap:10px}.act-row input{flex:1;min-width:140px;padding:7px 10px;border:1px solid var(--border);border-radius:6px;background:#fff;font-size:12px;font-family:Consolas,Monaco,monospace;outline:0}button{padding:9px 20px;border:none;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;transition:transform .15s,box-shadow .15s;color:#fff}#btn-gen{background:linear-gradient(135deg,var(--blue),var(--blue-dk));box-shadow:0 3px 10px rgba(74,144,226,.3)}#btn-gen:hover{transform:translateY(-1px);box-shadow:0 5px 14px rgba(74,144,226,.4)}#btn-copy{background:linear-gradient(135deg,var(--green),var(--green-dk));box-shadow:0 3px 10px rgba(82,196,26,.25)}#btn-copy:hover{transform:translateY(-1px);box-shadow:0 5px 14px rgba(82,196,26,.35)}.upload-row{display:flex;align-items:center;gap:10px}#upload-label{color:var(--blue);font-weight:600;font-size:13px;cursor:pointer;white-space:nowrap;padding:7px 16px;border:2px solid var(--blue);border-radius:8px;background:rgba(74,144,226,.08);transition:.2s}#upload-label:hover{background:rgba(74,144,226,.18);border-color:var(--blue-dk)}.upload-row input[type=file]{flex:1;padding:7px 10px;border:2px dashed #d0d0d0;border-radius:8px;background:#fafafa;font-size:12px;cursor:pointer;outline:0;transition:border-color .2s}.upload-row input[type=file]:hover{border-color:var(--blue)}#file-name-display{flex:1;padding:7px 10px;border:1px solid var(--border);border-radius:6px;background:#fff;font-size:12px;color:var(--text);font-family:Consolas,Monaco,monospace;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}#voxel-ctrl{display:flex;align-items:center;gap:16px;padding:10px 20px;background:var(--card);border-bottom:1px solid var(--border)}#grain-row{display:flex;align-items:center;gap:10px;flex:1}#face-row{display:flex;align-items:center;gap:8px;white-space:nowrap}.radio-lbl{display:inline-flex;align-items:center;gap:4px;cursor:pointer;font-size:13px;color:var(--text)}.radio-lbl input{cursor:pointer}#grain-row .lbl{min-width:auto}#grain-slider{flex:1;max-width:300px;height:6px;-webkit-appearance:none;appearance:none;background:#e0e0e0;border-radius:3px;outline:0;cursor:pointer}#grain-slider::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;background:var(--blue);border-radius:50%;cursor:pointer;box-shadow:0 1px 4px rgba(74,144,226,.4)}#grain-slider::-moz-range-thumb{width:18px;height:18px;background:var(--blue);border-radius:50%;cursor:pointer;border:none}#grain-val{min-width:32px;text-align:center;font-weight:700;color:var(--blue);font-size:14px;font-family:Consolas,Monaco,monospace}#progress-row{display:flex;align-items:center;gap:10px;min-width:200px}#progress-bar{flex:1;height:8px;background:#e8e8e8;border-radius:4px;overflow:hidden}#progress-fill{width:0%;height:100%;border-radius:4px;background:linear-gradient(90deg,var(--blue),var(--green));transition:width .15s}#progress-text{min-width:36px;text-align:right;font-weight:700;color:var(--blue);font-size:13px;font-family:Consolas,Monaco,monospace}#progress-count{font-size:12px;color:var(--muted);white-space:nowrap;font-family:Consolas,Monaco,monospace}#viewport{flex:1;position:relative;min-height:300px;padding:12px;display:flex;gap:12px}#view-image,#view-voxel{flex:1;display:flex;flex-direction:column}.view-label{font-size:12px;font-weight:600;color:var(--blue);padding:4px 0;text-align:center;letter-spacing:.3px}.view-wrap{flex:1;position:relative;overflow:auto;cursor:grab}.preview-img{display:block;margin:0 auto;max-width:none;max-height:none;background:var(--card);-webkit-user-drag:none;user-select:none;pointer-events:none}.preview-img.pixelated{image-rendering:pixelated;image-rendering:crisp-edges}@media (max-width:768px){#panel{flex-direction:column;padding:10px;gap:10px}.info-row{padding:6px 8px}.act-row{flex-wrap:wrap}.act-row button{flex:1}#voxel-ctrl{flex-wrap:wrap;gap:10px;padding:10px}#grain-row,#progress-row{flex:1 1 100%}#grain-slider{max-width:none}}body.dragging::after{content:"释放文件以导入图片";position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;background:rgba(74,144,226,.15);border:3px dashed var(--blue);color:var(--blue);font-size:22px;font-weight:700;pointer-events:none;border-radius:0}