:root{color-scheme:dark;--ink:#e7eef8;--muted:#7e8b9e;--cyan:#6dcfc9;--line:rgba(142,175,202,.16);--base:#060b11;--panel:#0c131e;font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;background:var(--base);color:var(--ink)}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 15% 0%,#102c3c55,transparent 50%),var(--base)}a{color:inherit;text-decoration:none}button,select{font:inherit;outline:none}button,select{background:#111d2a;color:var(--ink);border:1px solid var(--line);border-radius:7px;height:36px;padding:0 12px;font-size:12px}button{cursor:pointer;transition:background .18s,border-color .18s}button:hover,button:focus-visible,select:focus-visible{border-color:var(--cyan);background:#17303b}button:disabled{opacity:.5;cursor:progress}#app{height:100vh;min-height:580px;display:flex;flex-direction:column;padding:0 30px}.topbar{height:65px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);flex-shrink:0}.wordmark{font-size:24px;letter-spacing:.025em;font-weight:800;display:flex;align-items:center;gap:20px}.wordmark span{font-size:10px;letter-spacing:.18em;font-weight:500;color:var(--muted);border-left:1px solid var(--line);padding-left:20px}.live-mark{font-size:11px;color:#97a6b8;display:flex;align-items:center;gap:8px}.live-mark i{width:5px;height:5px;background:var(--cyan);border-radius:100%;box-shadow:0 0 12px #6dcfc977}.back{font-size:11px;color:var(--muted)}.back:hover{color:var(--cyan)}#controls{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:20px 0;flex-shrink:0}.eyebrow{font-size:9px;letter-spacing:.2em;color:var(--cyan);font-weight:600}h1{font-size:19px;letter-spacing:-.04em;line-height:1.4;margin:7px 0 0;font-weight:500}h1 em{font-style:normal;color:var(--cyan)}.selectors{display:flex;gap:8px;align-items:center}#datasetId{width:190px}#joint-selector{width:180px}#btnLoad{background:var(--cyan);color:#03212a;border-color:var(--cyan);font-weight:650}#main-content{min-height:0;flex:1;display:grid;grid-template-columns:280px minmax(0,1fr);gap:16px;padding-bottom:18px}#sidebar-left{display:flex;flex-direction:column;gap:10px;min-height:0;overflow:auto;scrollbar-width:thin}.video-container{position:relative;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#000;flex-shrink:0}.feed-label{height:28px;display:flex;align-items:center;justify-content:space-between;padding:0 10px;background:#0d1723;font-size:10px;color:#ccd5e1}.feed-label b{font-size:8px;letter-spacing:.14em;font-weight:500;color:#6c8299}video{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:contain;background:#04070b}.privacy-note{font-size:10px;line-height:1.7;margin:0;color:#586b80;padding:2px 1px 0}#viewport{position:relative;min-width:0;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#060a11}#viewport>canvas{display:block;width:100%;height:100%;outline:none}.viewport-heading{position:absolute;z-index:2;left:20px;top:19px;display:flex;flex-direction:column;gap:8px;pointer-events:none}.viewport-tag{font-size:11px;color:#6e829b}#camera-presets{position:absolute;z-index:2;right:14px;top:14px;display:flex;gap:6px}#camera-presets button{font-size:10px;height:30px;background:#0a131de6}.orbit-hint{position:absolute;bottom:18px;right:20px;font-size:10px;color:#607188;z-index:2;pointer-events:none}#bottom-bar{display:flex;gap:24px;align-items:center;min-height:76px;border-top:1px solid var(--line);padding-bottom:4px;flex-shrink:0}#play-controls{display:flex;gap:8px}#btnPlayPause{width:42px;height:42px;background:var(--cyan);border-color:var(--cyan);color:#05232b;display:flex;align-items:center;justify-content:center}#btnSync{height:42px;font-size:11px}#slider-container{flex:1;min-width:50px;padding-top:7px}#frameSlider{width:100%;margin:0;accent-color:var(--cyan);cursor:pointer}#banner{font-size:9px;color:#667c92;margin-top:7px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;height:12px}#frame-info{font-size:11px;font-variant-numeric:tabular-nums;white-space:nowrap;color:#a8b7c8;min-width:220px;text-align:right}#joint-chart-container{position:absolute;z-index:3;bottom:15px;left:15px;right:15px;height:240px;background:#0c1424f7;border:1px solid #294356;border-radius:8px;flex-direction:column;padding:10px}.chart-header{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:#a6bacb}.chart-header button{height:26px;width:28px;padding:0;font-size:20px}.chart-canvas{flex:1;position:relative;min-height:0;margin-top:10px}#loading-overlay{position:fixed;inset:0;background:#050b12d9;z-index:50;flex-direction:column;align-items:center;justify-content:center;gap:18px;backdrop-filter:blur(8px);font-size:12px;color:#b7c5d5}.spinner{width:32px;height:32px;border:2px solid #1c3447;border-top-color:var(--cyan);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}#toast-container{position:fixed;right:20px;bottom:95px;z-index:60;max-width:400px}.toast{padding:12px 16px;display:flex;gap:10px;background:#182536;border:1px solid #38546b;color:#d2e4ef;border-radius:8px;font-size:11px;line-height:1.5;margin-top:8px}.toast-error{border-color:#c86d79}.toast.hiding{animation:vanish .3s forwards}@keyframes vanish{to{opacity:0}}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0)}
@media(min-height:900px){#main-content{grid-template-columns:330px minmax(0,1fr)}}
@media(max-width:1000px){#app{padding:0 18px}h1{font-size:16px}.wordmark span{display:none}.selectors{gap:6px}#joint-selector{width:140px}#main-content{grid-template-columns:240px minmax(0,1fr)}#frame-info{min-width:190px;font-size:10px}.live-mark{display:none}}
@media(max-width:700px){#app{height:auto;min-height:100vh;padding:0 14px}.topbar{height:54px}.wordmark{font-size:22px}#controls{display:block;padding:16px 0}.task-title{margin-bottom:16px}.selectors{flex-wrap:wrap}#datasetId{flex:1}#joint-selector{flex-basis:100%;width:100%;height:32px}#main-content{display:flex;flex-direction:column-reverse;gap:12px;padding-bottom:14px}#viewport{height:420px;min-height:420px}#sidebar-left{display:grid;grid-template-columns:1fr 1fr;gap:8px;overflow:visible}.overview{grid-column:1/-1}.privacy-note{grid-column:1/-1}.feed-label{padding:0 8px;font-size:10px}.feed-label b{font-size:7px}#bottom-bar{position:sticky;bottom:0;background:#08121bf5;backdrop-filter:blur(12px);margin:0 -14px;padding:10px 14px;gap:12px;z-index:10;flex-wrap:wrap}#frame-info{width:100%;text-align:right;height:12px;font-size:10px;margin-top:-8px}#banner{font-size:8px}#camera-presets{top:49px;left:14px;right:auto}.viewport-heading{left:15px;top:17px;flex-direction:row;align-items:center;gap:12px}.orbit-hint{font-size:9px}.viewport-tag{font-size:9px}#joint-chart-container{height:220px}.back{font-size:10px}}

@media(min-width:701px){.embedded #app{height:100vh;min-height:0;padding:0 18px}.embedded .topbar{display:none}.embedded #controls{padding:10px 0;min-height:60px;gap:18px}.embedded .task-title h1{font-size:16px;margin-top:4px}.embedded .task-title .eyebrow{font-size:8px}.embedded #main-content{grid-template-columns:290px minmax(0,1fr);gap:14px;padding-bottom:12px}.embedded #sidebar-left{display:grid;grid-template-rows:repeat(3,minmax(0,1fr)) auto;gap:8px;overflow:hidden}.embedded .video-container{min-height:0;display:flex;flex-direction:column}.embedded .feed-label{height:24px;flex:0 0 24px}.embedded video{flex:1;min-height:0;height:0;aspect-ratio:auto;object-fit:contain}.embedded .privacy-note{font-size:9px;line-height:1.5;padding:0}.embedded #bottom-bar{min-height:62px;padding-bottom:0;gap:16px}.embedded #frame-info{min-width:220px;font-size:10px}.embedded #camera-presets button{height:28px}.embedded .viewport-heading{top:16px;left:17px}}