:root{--bg: #0b0b0b;--text: rgba(255, 255, 255, .92);--muted: rgba(255, 255, 255, .68);--stroke: rgba(255, 255, 255, .14);--card: rgba(10, 10, 10, .62)}html,body{margin:0;height:100%;overflow:hidden;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}#app{position:relative;width:100%;height:100%}#scene{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;display:block}.ui{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none}.btn{pointer-events:auto;border-radius:999px;border:1px solid var(--stroke);background:#141414a6;color:var(--text);padding:10px 14px;cursor:pointer;-webkit-user-select:none;user-select:none;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.topbar{pointer-events:auto;position:absolute;top:16px;left:0;right:0;padding:0 16px;box-sizing:border-box;display:flex;gap:10px;align-items:center;z-index:25}.topbar-logo{position:absolute;left:50%;transform:translate(-50%);height:28px;width:auto;object-fit:contain;pointer-events:auto;-webkit-user-select:none;user-select:none;-webkit-user-drag:none}.btn[aria-pressed=true],.btn.active{border-color:#86a8ff8c;background:#86a8ff1f}.anchor-btn{pointer-events:auto;position:absolute;transform:translate(-50%,-50%);padding:10px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.22);background:#141414a6;color:var(--text);cursor:pointer;-webkit-user-select:none;user-select:none;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:15}.wheels-btn{width:108px;height:108px;font-weight:600;letter-spacing:.2px;text-align:center;padding:10px}.wheels-menu{pointer-events:none;position:absolute;z-index:16;display:none}.wheels-menu.open{display:block;pointer-events:auto}.wheels-menu button{position:absolute;transform:translate(-50%,-50%);padding:8px 12px;border-radius:999px;border:1px solid var(--stroke);background:var(--card);color:var(--text);cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);white-space:nowrap}.engine-menu{pointer-events:none;position:absolute;z-index:16;display:none}.engine-menu.open{display:flex;gap:10px;pointer-events:auto}.engine-subbtn{padding:10px 14px;border-radius:999px;border:1px solid var(--stroke);background:#141414b8;color:var(--text);cursor:pointer;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);white-space:nowrap}.popover{pointer-events:auto;position:absolute;display:none;z-index:16}.popover.open{display:block}.popover-card{width:clamp(240px,50vw,720px);height:clamp(180px,50vh,460px);display:flex;flex-direction:column;border:1px solid var(--stroke);background:#0a0a0a9e;border-radius:14px;padding:10px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.popover-media{width:100%;height:auto;flex-grow:1;display:block;border-radius:10px;border:1px solid rgba(255,255,255,.12);object-fit:contain;background:#0003}.popover-caption{margin-top:10px;font-weight:600;color:var(--text)}.panel{pointer-events:auto;position:absolute;bottom:18px;left:18px;width:300px;border:1px solid var(--stroke);background:var(--card);border-radius:14px;padding:12px 14px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);color:var(--text);font-size:14px;line-height:1.4;z-index:18}.panel.collapsed{display:none}.panel-header{font-weight:600;margin-bottom:8px;display:flex;align-items:center;justify-content:space-between}.panel-content{display:flex;flex-direction:column;gap:8px}.move-modes,.move-actions{display:flex;gap:8px;flex-wrap:wrap}.coords{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.coords input[type=number]{width:76px;background:#ffffff14;border:1px solid rgba(255,255,255,.1);border-radius:6px;padding:6px 8px;color:var(--text)}.lights-panel{left:auto;right:18px;bottom:18px}.camera-panel{top:64px;left:16px;bottom:auto;width:360px;z-index:24}.move-panel{top:64px;left:16px;bottom:auto;width:420px;z-index:24}.light-controls{display:flex;flex-direction:column;gap:8px}.light-controls label{display:flex;align-items:center;gap:8px}.light-controls input[type=color]{width:40px;height:24px;border:none;padding:0;background:none;cursor:pointer}.light-controls input[type=range]{flex-grow:1}.toast{pointer-events:none;position:absolute;left:50%;bottom:22px;transform:translate(-50%);padding:10px 12px;border-radius:999px;border:1px solid var(--stroke);background:#141414b3;color:var(--text);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);opacity:0;transition:opacity .18s ease;z-index:30}.toast.show{opacity:1}.loading{pointer-events:none;position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;z-index:25;overflow:hidden}.loading.hidden{display:none}.loading-bg-video{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;display:block;object-fit:cover;background:#000;filter:saturate(1.05) contrast(1.02)}.loading-card{width:min(520px,calc(100vw - 32px));border:1px solid var(--stroke);border-radius:16px;background:#0a0a0aad;padding:18px;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);z-index:1}.loading-title{font-weight:700;margin-bottom:8px}.loading-detail{color:var(--muted);font-size:13px}