:root{--bg: #f4f5f7;--surface: #ffffff;--border: #e8eaed;--text: #1a1d21;--muted: #6b7280;--accent: #4f46e5;--accent-hover: #4338ca;--sidebar-w: 260px;--radius: 12px;--shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 4px 12px rgba(0, 0, 0, .04);font-family:DM Sans,system-ui,sans-serif;color:var(--text);line-height:1.5}*{box-sizing:border-box}body{margin:0;background:var(--bg)}#root{min-height:100vh}.app-shell{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-w);flex-shrink:0;display:flex;flex-direction:column;background:var(--surface);border-right:1px solid var(--border)}.sidebar-head{display:flex;align-items:center;gap:.65rem;padding:1.1rem 1rem .75rem}.logo{width:36px;height:36px;display:grid;place-items:center;border-radius:10px;background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;font-size:1rem}.logo-title{margin:0;font-size:.9rem;font-weight:700}.logo-sub{margin:0;font-size:.72rem;color:var(--muted)}.btn-new{margin:.5rem .75rem .75rem;padding:.55rem .85rem;border:1px dashed #c7cad1;border-radius:10px;background:#fafafa;color:var(--text);font:inherit;font-size:.85rem;font-weight:600;cursor:pointer;transition:border-color .15s,background .15s}.btn-new:hover{border-color:var(--accent);background:#f5f3ff;color:var(--accent)}.sidebar-list{flex:1;overflow-y:auto;padding:0 .5rem}.sidebar-empty{margin:1rem .75rem;font-size:.82rem;color:var(--muted)}.thread-item{width:100%;display:block;padding:.6rem .7rem;margin-bottom:2px;border:none;border-radius:8px;background:transparent;text-align:left;cursor:pointer;transition:background .12s}.thread-item:hover{background:#f4f5f7}.thread-item.active{background:#eef2ff}.thread-name{display:block;font-size:.84rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:.15rem}.thread-item.active .thread-name{color:var(--accent)}.thread-meta{display:flex;align-items:center;gap:.35rem;font-size:.72rem;color:var(--muted)}.dot{width:6px;height:6px;border-radius:50%;background:#9ca3af;flex-shrink:0}.dot[data-status=completed]{background:#22c55e}.dot[data-status=failed]{background:#ef4444}.dot[data-status=detecting],.dot[data-status=blender],.dot[data-status=exporting],.dot[data-status=queued]{background:#3b82f6}.sidebar-note{margin:0;padding:.65rem 1rem;font-size:.7rem;color:#9ca3af;border-top:1px solid var(--border)}.backdrop{display:none}.main{flex:1;display:flex;flex-direction:column;min-width:0}.topbar{display:flex;align-items:center;gap:.65rem;padding:.75rem 1.25rem;background:var(--surface);border-bottom:1px solid var(--border)}.menu-btn{display:none;width:36px;height:36px;border:1px solid var(--border);border-radius:8px;background:var(--surface);cursor:pointer}.topbar-title{margin:0;flex:1;font-size:.95rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pill{flex-shrink:0;font-size:.72rem;font-weight:600;padding:.2rem .55rem;border-radius:999px;background:#f3f4f6;color:#4b5563}.pill[data-status=completed]{background:#dcfce7;color:#15803d}.pill[data-status=failed]{background:#fee2e2;color:#b91c1c}.pill[data-status=detecting],.pill[data-status=blender],.pill[data-status=exporting],.pill[data-status=queued]{background:#dbeafe;color:#1d4ed8}.banner{padding:.6rem 1.25rem;font-size:.85rem}.banner-warn{background:#fffbeb;color:#92400e;border-bottom:1px solid #fde68a}.banner-warn code{background:#fef3c7;padding:.1rem .3rem;border-radius:4px}.banner-error{background:#fef2f2;color:#b91c1c;border-radius:var(--radius);margin-top:.75rem}.workspace{flex:1;overflow-y:auto;padding:1.5rem;display:flex;justify-content:center}.workspace-inner{width:100%;max-width:720px;display:flex;flex-direction:column;gap:1rem}.drop-card{width:100%;max-width:420px;margin:auto;padding:3rem 2rem;text-align:center;background:var(--surface);border:2px dashed #d1d5db;border-radius:16px;cursor:pointer;transition:border-color .2s,box-shadow .2s;box-shadow:var(--shadow)}.drop-card:hover,.drop-card.over{border-color:var(--accent);box-shadow:0 0 0 4px #4f46e51a,var(--shadow)}.drop-icon{width:48px;height:48px;margin:0 auto 1rem;display:grid;place-items:center;border-radius:12px;background:#eef2ff;color:var(--accent);font-size:1.4rem;font-weight:700}.drop-title{margin:0 0 .35rem;font-size:1.05rem;font-weight:600}.drop-sub{margin:0;font-size:.85rem;color:var(--muted)}.plan-card{display:flex;align-items:center;gap:.85rem;padding:.65rem .85rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.plan-thumb{width:56px;height:56px;object-fit:cover;border-radius:8px;border:1px solid var(--border);background:#f9fafb;flex-shrink:0}.plan-icon{width:56px;height:56px;display:grid;place-items:center;border-radius:8px;background:#f3f4f6;font-size:1.5rem;flex-shrink:0}.plan-info{flex:1;min-width:0}.plan-name{margin:0;font-size:.9rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.plan-meta{margin:.15rem 0 0;font-size:.78rem;color:var(--muted)}.plan-remove{width:28px;height:28px;border:none;border-radius:6px;background:#f3f4f6;color:#6b7280;font-size:1.1rem;cursor:pointer;flex-shrink:0}.plan-remove:hover{background:#fee2e2;color:#b91c1c}.result-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;box-shadow:var(--shadow)}.result-head{display:flex;align-items:center;gap:.65rem;flex-wrap:wrap;margin-bottom:.5rem}.result-msg{font-size:.88rem;color:var(--muted)}.progress{height:4px;border-radius:999px;background:#e5e7eb;overflow:hidden;margin-bottom:.75rem}.progress-bar{width:30%;height:100%;background:linear-gradient(90deg,var(--accent),#7c3aed);border-radius:inherit;animation:slide 1.4s ease-in-out infinite}@keyframes slide{0%{transform:translate(-100%)}to{transform:translate(350%)}}.btn-download{display:inline-flex;margin-top:.75rem;padding:.55rem 1rem;border-radius:8px;background:var(--text);color:#fff;text-decoration:none;font-size:.88rem;font-weight:600}.btn-download:hover{background:#374151}.dock{padding:.85rem 1.25rem 1.1rem;background:var(--surface);border-top:1px solid var(--border)}.dock.over{background:#f5f3ff}.dock-inner{max-width:720px;margin:0 auto;display:flex;align-items:center;gap:.5rem;padding:.5rem .5rem .5rem .65rem;background:#f9fafb;border:1px solid var(--border);border-radius:14px}.btn-icon{width:36px;height:36px;border:none;border-radius:8px;background:transparent;font-size:1.1rem;cursor:pointer;flex-shrink:0}.btn-icon:hover:not(:disabled){background:#e5e7eb}.btn-icon:disabled{opacity:.4;cursor:not-allowed}.dock-select{padding:.4rem .55rem;border:1px solid var(--border);border-radius:8px;background:var(--surface);font:inherit;font-size:.82rem;font-weight:600;color:var(--text)}.btn-primary{margin-left:auto;padding:.55rem 1.1rem;border:none;border-radius:10px;background:var(--accent);color:#fff;font:inherit;font-size:.88rem;font-weight:600;cursor:pointer;white-space:nowrap;transition:background .15s}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-primary:disabled{opacity:.45;cursor:not-allowed}.viewer-wrap{margin-top:.75rem;border-radius:10px;overflow:hidden;border:1px solid var(--border);background:#111827}.model-viewer{position:relative;width:100%;height:360px}.model-viewer canvas{display:block;width:100%!important;height:100%!important}.viewer-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;color:#9ca3af;font-size:.9rem;pointer-events:none}.viewer-error{color:#fca5a5;padding:1rem;text-align:center}.viewer-hint{margin:0;padding:.45rem .75rem;font-size:.75rem;color:#6b7280;text-align:center;background:#1f2937}@media (max-width: 768px){.sidebar{position:fixed;inset:0 auto 0 0;z-index:100;transform:translate(-100%);transition:transform .22s ease;box-shadow:4px 0 24px #0000001a}.sidebar.open{transform:translate(0)}.backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;z-index:99;border:none;background:#00000059;cursor:pointer}.menu-btn{display:grid;place-items:center}.workspace{padding:1rem}.model-viewer{height:260px}.btn-primary{padding:.55rem .75rem;font-size:.82rem}}*,*:before,*:after{box-sizing:border-box}body{margin:0}