:root{--bg: #141414;--panel: #1c1c1e;--panel-2: #252528;--panel-3: #2e2e32;--text: #e8e8ea;--text-dim: #7e7e8a;--text-muted: #525260;--accent: #3b82f6;--accent-hover: #60a5fa;--danger: #ef4444;--success: #22c55e;--border: #2a2a30;--border-light: #35353d;--radius: 6px;--radius-sm: 4px}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans TC,PingFang TC,sans-serif;background:var(--bg);color:var(--text);overflow:hidden;font-size:13px}button{background:var(--panel-2);color:var(--text);border:1px solid var(--border-light);padding:6px 12px;cursor:pointer;border-radius:var(--radius-sm);font-size:12px;font-family:inherit;transition:background .15s,border-color .15s;white-space:nowrap}button:hover:not(:disabled){background:var(--panel-3);border-color:#44444d}button:disabled{opacity:.45;cursor:not-allowed}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.primary:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover)}input,textarea,select{background:var(--panel-2);color:var(--text);border:1px solid var(--border-light);border-radius:var(--radius-sm);padding:6px 8px;font-size:12px;font-family:inherit;width:100%;outline:none;transition:border-color .15s}input:focus,textarea:focus,select:focus{border-color:var(--accent)}input[type=color]{padding:2px;height:30px;cursor:pointer;width:44px;flex-shrink:0}input[type=range]{padding:0;accent-color:var(--accent)}input[type=checkbox]{width:auto;cursor:pointer;accent-color:var(--accent)}select{cursor:pointer}textarea{resize:vertical}kbd{background:var(--panel-3);border:1px solid var(--border-light);border-radius:3px;padding:1px 5px;font-size:10px;font-family:monospace;color:var(--text-dim)}.app{display:flex;flex-direction:column;height:100%}.header{display:flex;align-items:center;justify-content:space-between;padding:9px 16px;background:var(--panel);border-bottom:1px solid var(--border);flex-shrink:0;z-index:10}.logo{font-weight:600;font-size:13px;letter-spacing:.03em;color:var(--text);opacity:.9}.header-actions{display:flex;gap:6px}.sidebar-toggle{display:none}.main{flex:1;display:flex;min-height:0;position:relative}.canvas-wrap{flex:1;position:relative;min-width:0;background:#000}.three-canvas{width:100%;height:100%;display:block;outline:none}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:#00000080;pointer-events:none;font-size:13px}.overlay.error{pointer-events:auto;color:#faa}.banner{position:absolute;top:12px;left:50%;transform:translate(-50%);background:#000000a6;padding:5px 14px;border-radius:20px;font-size:11px;color:var(--text-dim);pointer-events:none;white-space:nowrap;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.hint-icon{position:absolute;bottom:14px;left:14px;z-index:10}.hint-badge{display:flex;align-items:center;justify-content:center;width:22px;height:22px;background:#1e1e24d9;border:1px solid var(--border-light);border-radius:50%;font-size:11px;font-weight:700;color:var(--text-dim);cursor:default;-webkit-user-select:none;user-select:none;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.hint-popup{display:none;position:absolute;bottom:30px;left:0;background:var(--panel);border:1px solid var(--border-light);border-radius:var(--radius);padding:10px 12px;min-width:210px;box-shadow:0 8px 24px #00000080;pointer-events:none}.hint-icon:hover .hint-popup{display:block}.hint-row{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--text-dim);padding:2px 0}.hint-row kbd{margin-right:2px}.box-select{position:absolute;border:1px dashed #ff5555;background:#ff3c3c1a;pointer-events:none;display:none;z-index:5}.sidebar{width:280px;flex-shrink:0;background:var(--panel);border-left:1px solid var(--border);overflow-y:auto;display:flex;flex-direction:column;scrollbar-width:thin;scrollbar-color:#333 transparent}.sidebar::-webkit-scrollbar{width:4px}.sidebar::-webkit-scrollbar-thumb{background:#333;border-radius:2px}.sidebar-close{display:none}.section{border-bottom:1px solid var(--border)}.section:last-child{border-bottom:none;flex:1}.section-header{width:100%;display:flex;align-items:center;justify-content:space-between;padding:10px 14px;background:transparent;border:none;border-radius:0;font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-dim);cursor:pointer;transition:background .1s}.section-header:hover{background:#ffffff08;border:none}.section-title{display:flex;align-items:center;gap:6px}.section-icon{font-size:12px}.section-arrow{font-size:10px;color:var(--text-muted)}.section-body{padding:4px 14px 14px;display:flex;flex-direction:column;gap:10px}.field-block{display:flex;flex-direction:column;gap:6px}.field-label-row{display:flex;align-items:center;justify-content:space-between;gap:8px}.field-label{font-size:11px;color:var(--text-dim);letter-spacing:.04em;flex-shrink:0}.field-val{font-size:11px;color:var(--text)}.btn-pair{display:grid;grid-template-columns:1fr 1fr;gap:6px}.pair-btn{width:100%;font-size:11px;padding:7px 4px}.lighting-grid{display:grid;grid-template-columns:1fr 1fr;gap:4px}.lighting-btn{font-size:11px;padding:5px;border-radius:var(--radius-sm);text-align:center}.lighting-btn.active{background:#3b82f633;border-color:var(--accent);color:var(--accent-hover)}.checkbox-label{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--text);cursor:pointer;-webkit-user-select:none;user-select:none}.transform-hint{display:flex;flex-wrap:wrap;gap:6px;font-size:10px;color:var(--text-dim);padding:6px 8px;background:var(--panel-2);border-radius:var(--radius-sm);border:1px solid var(--border)}.transform-hint span{display:flex;align-items:center;gap:3px}.camera-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}.camera-list.scrollable{max-height:220px;overflow-y:auto;padding-right:2px;scrollbar-width:thin;scrollbar-color:#333 transparent}.camera-list.scrollable::-webkit-scrollbar{width:4px}.camera-list.scrollable::-webkit-scrollbar-thumb{background:#333;border-radius:2px}.camera-list li{display:flex;gap:4px;padding:8px 10px;border-radius:var(--radius-sm);border:1px solid var(--border);align-items:center;cursor:pointer;transition:background .1s,border-color .1s;background:var(--panel-2)}.camera-list li:hover{background:var(--panel-3);border-color:var(--border-light)}.cam-main{flex:1;min-width:0}.cam-name{font-size:12px;font-weight:600;color:var(--text);letter-spacing:.05em}.cam-note{font-size:10px;color:var(--text-dim);margin-top:2px;cursor:text;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cam-note.placeholder{color:var(--text-muted);font-style:italic}.cam-note-input{font-size:10px;padding:2px 4px;height:auto;margin-top:2px}.cam-actions{flex-shrink:0}.cam-del{padding:3px 6px;font-size:10px;color:var(--text-muted)}.cam-del:hover{color:var(--danger);background:#ef44441a;border-color:#ef44444d}.parts-panel{display:flex;flex-direction:column;gap:8px}.mesh-name{font-size:11px}.mesh-name code{background:var(--panel-3);color:var(--text-dim);padding:2px 6px;border-radius:3px;font-size:10px;word-break:break-all}.parts-row{display:flex;align-items:center;justify-content:space-between;gap:8px}.parts-tex-btn{font-size:11px;padding:6px 10px;width:100%}.empty{color:var(--text-muted);font-size:11px;padding:4px 0;line-height:1.6}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000a6;display:flex;align-items:center;justify-content:center;z-index:100;padding:16px;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.modal{background:var(--panel);border:1px solid var(--border-light);border-radius:10px;padding:20px;width:100%;max-width:420px;display:flex;flex-direction:column;gap:14px;box-shadow:0 24px 48px #00000080}.modal h3{margin:0;font-size:15px}.modal label{display:flex;flex-direction:column;gap:5px;font-size:11px;color:var(--text-dim)}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:4px}.warning{background:#eab3081a;border:1px solid rgba(234,179,8,.25);padding:10px 12px;border-radius:var(--radius-sm);font-size:11px;line-height:1.5;color:#f6c97a}.dropzone{border:2px dashed var(--border-light);border-radius:var(--radius);padding:28px 16px;text-align:center;display:flex;flex-direction:column;gap:10px;align-items:center;font-size:12px;color:var(--text-dim);transition:border-color .2s}.dropzone:hover{border-color:var(--accent)}.file-pick{display:inline-block;padding:6px 14px;background:var(--panel-2);border:1px solid var(--border-light);border-radius:var(--radius-sm);cursor:pointer;font-size:12px;color:var(--text)}.file-pick:hover{background:var(--panel-3)}.progress-row{display:flex;align-items:center;gap:10px;font-size:11px}.progress-row progress{flex:1;height:6px;accent-color:var(--accent);border-radius:3px}.toast-stack{position:fixed;top:16px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;gap:6px;z-index:200;pointer-events:none}.toast{padding:9px 16px;border-radius:var(--radius-sm);font-size:12px;color:#fff;box-shadow:0 4px 16px #0006;animation:toast-in .18s ease-out;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.toast.error{background:#ef4444e6}.toast.success{background:#22c55ee6}@keyframes toast-in{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.sidebar-toggle{display:inline-block}.sidebar{position:absolute;top:0;right:0;bottom:0;width:85%;max-width:320px;transform:translate(100%);transition:transform .22s ease-out;z-index:50;box-shadow:-4px 0 20px #00000080}.sidebar.open{transform:translate(0)}.sidebar-close{display:block;align-self:flex-end;background:none;border:none;font-size:16px;color:var(--text-dim);cursor:pointer;padding:10px 14px 0}.banner{font-size:10px;max-width:88%;white-space:normal;text-align:center}}