.buildref-3dv-wrapper{--b3dv-bg:#0d0f11;--b3dv-surface:#151719;--b3dv-surface2:#1c1f22;--b3dv-border:rgba(255,255,255,0.07);--b3dv-border2:rgba(255,255,255,0.13);--b3dv-accent:#4a9eff;--b3dv-text:#e8eaed;--b3dv-muted:#6b7280;--b3dv-muted2:#9ca3af;--b3dv-success:#34d399;display:flex;flex-direction:column;border-radius:12px;overflow:hidden;border:1px solid var(--b3dv-border);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:var(--b3dv-bg);color:var(--b3dv-text);box-sizing:border-box;margin:20px 0}.buildref-3dv-wrapper *,.buildref-3dv-wrapper *::before,.buildref-3dv-wrapper *::after{box-sizing:border-box}.buildref-3dv-theme-light{--b3dv-bg:#ffffff;--b3dv-surface:#f5f7fa;--b3dv-surface2:#eaeef2;--b3dv-border:rgba(0,0,0,0.08);--b3dv-border2:rgba(0,0,0,0.14);--b3dv-text:#1a1f24;--b3dv-muted:#6b7280;--b3dv-muted2:#4a5260}.buildref-3dv-header{display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:48px;border-bottom:1px solid var(--b3dv-border);flex-shrink:0;background:var(--b3dv-surface)}.buildref-3dv-logo{font-family:"SFMono-Regular",Menlo,Consolas,monospace;font-size:13px;font-weight:500;letter-spacing:.08em;color:var(--b3dv-accent);text-transform:uppercase}.buildref-3dv-logo span{color:var(--b3dv-muted2);font-weight:400}.buildref-3dv-badge{font-family:"SFMono-Regular",Menlo,Consolas,monospace;font-size:10px;letter-spacing:.06em;padding:3px 8px;border-radius:99px;background:rgb(74 158 255 / .1);color:var(--b3dv-accent);border:1px solid rgb(74 158 255 / .2);text-transform:uppercase}.buildref-3dv-main{display:flex;flex:1;overflow:hidden;min-height:0}.buildref-3dv-sidebar{width:260px;flex-shrink:0;background:var(--b3dv-surface);border-right:1px solid var(--b3dv-border);display:flex;flex-direction:column;overflow-y:auto}.buildref-3dv-section{padding:16px;border-bottom:1px solid var(--b3dv-border)}.buildref-3dv-label{font-family:"SFMono-Regular",Menlo,Consolas,monospace;font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--b3dv-muted);margin-bottom:10px}.buildref-3dv-upload{display:block;border:1px dashed var(--b3dv-border2);border-radius:8px;padding:20px 12px;text-align:center;cursor:pointer;transition:all 0.2s;background:var(--b3dv-surface2);position:relative}.buildref-3dv-upload:hover,.buildref-3dv-upload.dragover{border-color:var(--b3dv-accent);background:rgb(74 158 255 / .05)}.buildref-3dv-file-input{display:none}.buildref-3dv-upload-icon{width:32px;height:32px;margin:0 auto 8px;border-radius:6px;background:rgb(74 158 255 / .1);display:flex;align-items:center;justify-content:center;color:var(--b3dv-accent);font-size:16px}.buildref-3dv-upload-title{font-size:12px;font-weight:500;margin-bottom:3px;color:var(--b3dv-text)}.buildref-3dv-upload-sub{font-size:11px;color:var(--b3dv-muted)}.buildref-3dv-formats{display:flex;flex-wrap:wrap;gap:4px;margin-top:10px;justify-content:center}.buildref-3dv-format-tag{font-family:"SFMono-Regular",Menlo,Consolas,monospace;font-size:9px;padding:2px 6px;border-radius:4px;background:var(--b3dv-surface);border:1px solid var(--b3dv-border2);color:var(--b3dv-muted2);text-transform:uppercase}.buildref-3dv-file-info{margin-top:10px}.buildref-3dv-file-name{font-family:"SFMono-Regular",Menlo,Consolas,monospace;font-size:11px;word-break:break-all;margin-bottom:4px}.buildref-3dv-file-meta{font-size:11px;color:var(--b3dv-muted)}.buildref-3dv-file-status{display:flex;align-items:center;gap:6px;margin-top:8px;font-size:11px;color:var(--b3dv-success)}.buildref-3dv-status-dot{width:6px;height:6px;border-radius:50%;background:var(--b3dv-success);animation:buildref-3dv-pulse 2s ease-in-out infinite}@keyframes buildref-3dv-pulse{0%,100%{opacity:1}50%{opacity:.4}}.buildref-3dv-toggle-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;font-size:12px;color:var(--b3dv-muted2)}.buildref-3dv-toggle{width:28px;height:16px;border-radius:8px;background:var(--b3dv-surface2);border:1px solid var(--b3dv-border2);position:relative;cursor:pointer;transition:background 0.2s;flex-shrink:0}.buildref-3dv-toggle.on{background:var(--b3dv-accent);border-color:var(--b3dv-accent)}.buildref-3dv-toggle-thumb{position:absolute;top:2px;left:2px;width:10px;height:10px;border-radius:50%;background:#fff;transition:transform 0.2s}.buildref-3dv-toggle.on .buildref-3dv-toggle-thumb{transform:translateX(12px)}.buildref-3dv-ctrl-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;font-size:12px;color:var(--b3dv-muted2)}.buildref-3dv-light-val{font-family:"SFMono-Regular",Menlo,Consolas,monospace;font-size:11px;color:var(--b3dv-accent)}.buildref-3dv-light-slider{width:100%;height:3px;background:var(--b3dv-surface2);border-radius:2px;outline:none;border:none;-webkit-appearance:none;cursor:pointer;margin-top:4px}.buildref-3dv-light-slider::-webkit-slider-thumb{-webkit-appearance:none;width:12px;height:12px;border-radius:50%;background:var(--b3dv-accent);cursor:pointer;border:2px solid var(--b3dv-surface)}.buildref-3dv-light-slider::-moz-range-thumb{width:12px;height:12px;border-radius:50%;background:var(--b3dv-accent);cursor:pointer;border:2px solid var(--b3dv-surface)}.buildref-3dv-stats{display:grid;grid-template-columns:1fr 1fr;gap:6px}.buildref-3dv-stat-card{background:var(--b3dv-surface2);border:1px solid var(--b3dv-border);border-radius:6px;padding:8px}.buildref-3dv-stat-label{font-size:10px;color:var(--b3dv-muted);margin-bottom:2px}.buildref-3dv-stat-val{font-family:"SFMono-Regular",Menlo,Consolas,monospace;font-size:12px;color:var(--b3dv-text);font-weight:500}.buildref-3dv-viewport{flex:1;position:relative;background:var(--b3dv-bg);overflow:hidden;min-width:0}.buildref-3dv-canvas{display:block;width:100%;height:100%}.buildref-3dv-empty{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;pointer-events:none}.buildref-3dv-empty.hidden{display:none}.buildref-3dv-empty-grid{position:absolute;inset:0;background-image:linear-gradient(rgb(255 255 255 / .02) 1px,transparent 1px),linear-gradient(90deg,rgb(255 255 255 / .02) 1px,transparent 1px);background-size:40px 40px}.buildref-3dv-empty-icon{width:64px;height:64px;border-radius:16px;background:var(--b3dv-surface);border:1px solid var(--b3dv-border2);display:flex;align-items:center;justify-content:center;font-size:28px;position:relative;z-index:1;color:var(--b3dv-muted2)}.buildref-3dv-empty-title{font-size:16px;font-weight:500;color:var(--b3dv-muted2);position:relative;z-index:1}.buildref-3dv-empty-sub{font-size:13px;color:var(--b3dv-muted);position:relative;z-index:1}.buildref-3dv-toolbar{position:absolute;bottom:16px;left:50%;transform:translateX(-50%);display:flex;gap:4px;background:var(--b3dv-surface);border:1px solid var(--b3dv-border2);border-radius:10px;padding:6px;backdrop-filter:blur(10px)}.buildref-3dv-tool-btn{width:32px;height:32px;border-radius:6px;border:none;background:#fff0;color:var(--b3dv-muted2);cursor:pointer;font-size:14px;transition:all 0.15s;display:flex;align-items:center;justify-content:center}.buildref-3dv-tool-btn:hover{background:var(--b3dv-surface2);color:var(--b3dv-text)}.buildref-3dv-tool-btn.active{background:rgb(74 158 255 / .15);color:var(--b3dv-accent)}.buildref-3dv-tool-sep{width:1px;background:var(--b3dv-border);margin:4px 2px}.buildref-3dv-progress{position:absolute;top:0;left:0;right:0;height:2px;background:#fff0;z-index:10;display:none}.buildref-3dv-progress.visible{display:block}.buildref-3dv-progress-fill{height:100%;background:var(--b3dv-accent);transition:width 0.3s;border-radius:0 2px 2px 0;width:0%}.buildref-3dv-corner-info{position:absolute;top:12px;right:12px;font-family:"SFMono-Regular",Menlo,Consolas,monospace;font-size:10px;color:var(--b3dv-muted);text-align:right;line-height:1.8;pointer-events:none;white-space:pre-line}.buildref-3dv-error-toast{position:absolute;bottom:70px;left:50%;transform:translateX(-50%);background:#2d1a1a;border:1px solid #7f2020;color:#fca5a5;font-size:12px;padding:8px 14px;border-radius:8px;display:none;white-space:nowrap;z-index:20}.buildref-3dv-error-toast.visible{display:block}.buildref-3dv-hint{font-size:11px;color:var(--b3dv-muted2);line-height:1.9}.buildref-3dv-key{display:inline-block;font-family:"SFMono-Regular",Menlo,Consolas,monospace;font-size:10px;padding:1px 5px;background:var(--b3dv-surface2);border:1px solid var(--b3dv-border2);border-radius:3px;color:var(--b3dv-text);margin-right:2px}@media (max-width:768px){.buildref-3dv-sidebar{width:100%;max-height:200px}.buildref-3dv-main{flex-direction:column}.buildref-3dv-wrapper{height:auto!important;min-height:600px}}