*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0f1115;--panel: rgba(22, 25, 32, .88);--border: rgba(255, 255, 255, .08);--text: #f2f4f8;--muted: #9aa3b2;--accent: #1a6cff;--accent-2: #ff6b1a;--radius: 12px;--shadow: 0 12px 40px rgba(0, 0, 0, .45)}html,body,#app{height:100%;font-family:Inter,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);overflow:hidden}#app:not(.app-ready) .viewer-shell,#app:not(.app-ready) .top-bar{visibility:hidden}.boot-screen{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;display:grid;place-items:center;background:var(--bg)}.boot-screen.hidden{display:none}.boot-card{display:flex;flex-direction:column;align-items:center;gap:12px;width:min(360px,calc(100vw - 40px));padding:28px 24px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--border);box-shadow:var(--shadow);text-align:center}.boot-card strong{font-size:16px}.boot-card span{font-size:13px;color:var(--muted)}.boot-bar{width:100%;height:6px;margin-top:4px;border-radius:999px;background:#ffffff14;overflow:hidden}.boot-bar-fill{height:100%;width:0%;border-radius:999px;background:linear-gradient(90deg,var(--accent),#4d9fff);transition:width .2s ease}button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}.top-bar{position:fixed;top:0;left:0;right:0;z-index:30;display:flex;align-items:center;justify-content:space-between;padding:14px 20px;background:linear-gradient(180deg,#0f1115eb,#0f111500);pointer-events:none}.top-bar>*{pointer-events:auto}.brand{display:flex;align-items:center;gap:12px}.brand-icon{width:40px;height:40px;display:grid;place-items:center;background:var(--panel);border:1px solid var(--border);border-radius:10px;font-size:18px;color:var(--accent)}.brand strong{display:block;font-size:15px}.brand-sub{font-size:12px;color:var(--muted)}.top-actions{display:flex;gap:8px}.btn{padding:8px 14px;border-radius:8px;font-weight:600;font-size:13px}.btn.ghost{background:var(--panel);border:1px solid var(--border)}.btn.primary{background:var(--accent);color:#fff}.viewer-shell{position:relative;width:100%;height:100%}.panorama-layer,.dollhouse-layer{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.panorama-layer.hidden,.dollhouse-layer.hidden{visibility:hidden;pointer-events:none;opacity:0}.mode-badge{position:absolute;top:72px;left:20px;z-index:10;padding:6px 12px;border-radius:999px;background:var(--panel);border:1px solid var(--border);font-size:12px;font-weight:600;letter-spacing:.02em;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.tour-loading{position:absolute;top:0;right:0;bottom:0;left:0;z-index:20;display:grid;place-items:center;background:#0a0c108c;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);pointer-events:none}.tour-loading.hidden{display:none}.tour-loading-card{display:flex;flex-direction:column;align-items:center;gap:10px;min-width:220px;padding:20px 24px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--border);box-shadow:var(--shadow);text-align:center}.tour-loading-spinner{width:34px;height:34px;border:3px solid rgba(255,255,255,.15);border-top-color:var(--accent);border-radius:50%;animation:tour-spin .8s linear infinite}.tour-loading-card strong{font-size:14px}.tour-loading-card span{font-size:12px;color:var(--muted)}@keyframes tour-spin{to{transform:rotate(360deg)}}.tool-btn:disabled{opacity:.55;cursor:not-allowed}.floor-panel{position:absolute;top:72px;right:20px;z-index:10;width:180px;padding:14px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow)}.floor-panel h2{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:10px}#floor-list{list-style:none;display:flex;flex-direction:column;gap:6px}.floor-btn{width:100%;text-align:left;padding:10px 12px;border-radius:8px;font-size:13px;font-weight:500;border:1px solid transparent;transition:background .15s,border-color .15s}.floor-btn:hover{background:#ffffff0d}.floor-btn.active{background:#1a6cff2e;border-color:#1a6cff73;color:#dbe8ff}.scene-rail{position:absolute;left:50%;bottom:96px;transform:translate(-50%);z-index:10;display:flex;gap:8px;padding:8px;background:var(--panel);border:1px solid var(--border);border-radius:999px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);max-width:calc(100% - 40px);overflow-x:auto}.scene-chip{white-space:nowrap;padding:8px 14px;border-radius:999px;font-size:12px;font-weight:600;color:var(--muted);transition:background .15s,color .15s}.scene-chip:hover{color:var(--text);background:#ffffff0f}.scene-chip.active{background:var(--accent-2);color:#fff}.bottom-toolbar{position:absolute;left:50%;bottom:20px;transform:translate(-50%);z-index:12;display:flex;align-items:center;gap:4px;padding:6px;background:var(--panel);border:1px solid var(--border);border-radius:16px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:var(--shadow)}.tool-btn{display:flex;flex-direction:column;align-items:center;gap:4px;min-width:72px;padding:10px 8px 8px;border-radius:12px;font-size:11px;font-weight:600;color:var(--muted);transition:background .15s,color .15s}.tool-btn svg{width:22px;height:22px}.tool-btn:hover{color:var(--text);background:#ffffff0f}.tool-btn.active{color:#fff;background:#1a6cff40}.tool-btn.playing{color:var(--accent-2)}.toolbar-divider{width:1px;height:36px;background:var(--border);margin:0 4px}.info-card{position:absolute;left:20px;bottom:96px;z-index:10;max-width:320px;padding:16px 18px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow)}.info-card h3{font-size:16px;margin-bottom:6px}.info-card p{font-size:13px;line-height:1.5;color:var(--muted)}.tour-hotspot{background:#1a6cffd9!important;border-radius:999px!important;padding:6px 12px!important;font-weight:600!important;font-size:12px!important;color:#fff!important;border:2px solid rgba(255,255,255,.9)!important}dialog{border:1px solid var(--border);border-radius:var(--radius);padding:24px;max-width:480px;background:#1a1d24;color:var(--text);box-shadow:var(--shadow)}dialog::backdrop{background:#0009}dialog h2{margin-bottom:12px}dialog ul{margin:0 0 16px 18px;line-height:1.6;font-size:14px;color:var(--muted)}dialog li strong{color:var(--text)}.mvp-note{font-size:13px;color:var(--muted);margin-bottom:16px;line-height:1.5}.toast{position:fixed;bottom:88px;left:50%;transform:translate(-50%);z-index:50;padding:10px 18px;background:#222833;border:1px solid var(--border);border-radius:999px;font-size:13px;font-weight:500;box-shadow:var(--shadow)}.toast.hidden{display:none}.move-controls{position:absolute;right:20px;bottom:96px;z-index:11;display:flex;flex-direction:column;align-items:center;gap:10px}.move-controls.hidden{display:none}.room-stepper{display:flex;align-items:center;gap:6px;padding:6px 8px;background:var(--panel);border:1px solid var(--border);border-radius:999px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow)}.step-btn{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;color:var(--text);transition:background .15s}.step-btn svg{width:18px;height:18px}.step-btn:hover{background:#ffffff14}.step-label{font-size:11px;font-weight:600;color:var(--muted);min-width:42px;text-align:center}.look-pad{display:grid;grid-template-columns:repeat(3,44px);grid-template-rows:repeat(3,44px);gap:4px;padding:8px;background:var(--panel);border:1px solid var(--border);border-radius:16px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow)}.pad-btn{display:grid;place-items:center;border-radius:10px;color:var(--text);transition:background .15s,color .15s}.pad-btn svg{width:20px;height:20px}.pad-btn:hover{background:#ffffff14}.pad-btn:active{background:#1a6cff4d}.pad-up{grid-column:2;grid-row:1}.pad-left{grid-column:1;grid-row:2}.pad-forward{grid-column:2;grid-row:2;background:#1a6cff38;border:1px solid rgba(26,108,255,.45);color:#dbe8ff}.pad-forward:hover{background:#1a6cff59}.pad-right{grid-column:3;grid-row:2}.pad-down{grid-column:2;grid-row:3}.zoom-row{display:flex;gap:6px}.zoom-btn{width:44px;height:36px;border-radius:10px;background:var(--panel);border:1px solid var(--border);font-size:20px;font-weight:600;line-height:1;color:var(--text);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow);transition:background .15s}.zoom-btn:hover{background:#ffffff14}@media(max-width:768px){.floor-panel{top:auto;bottom:180px;right:12px;width:150px}.info-card{display:none}.scene-rail{bottom:108px}.move-controls{right:12px;bottom:112px;transform:scale(.92);transform-origin:bottom right}}