:root{--ink:#202c2c;--muted:#6b7776;--green:#17695f;--line:#dce4e1;--soft:#f3f7f5;--serif:Georgia,'Times New Roman',serif;--sans:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;color:var(--ink);background:#fff;font-family:var(--sans);font-size:16px;line-height:1.6}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{cursor:wait;opacity:.5}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #228f81;outline-offset:4px}button{color:inherit}img{display:block;max-width:100%;height:auto}.wrap{max-width:1120px;margin:auto;padding:0 32px}.wide-wrap{max-width:1420px;margin:auto;padding:0 40px}.site-header{border-bottom:1px solid var(--line);background:rgba(255,255,255,.96);position:sticky;top:0;z-index:10;backdrop-filter:blur(16px)}.nav-inner{max-width:1420px;margin:auto;padding:19px 40px;display:flex;align-items:center;gap:64px}.wordmark{font-size:22px;font-weight:750;letter-spacing:-1px;white-space:nowrap}.wordmark>span:first-child{color:#9caeaa}.brand-period{color:var(--green)}nav{display:flex;gap:28px;font-size:14px}nav a:hover,.quiet-link:hover,footer>a:last-child:hover{color:var(--green)}.nav-note{margin-left:auto;color:var(--muted);font-size:13px}.hero{padding-top:68px;padding-bottom:56px;text-align:center}.eyebrow,.section-kicker{font-size:12px;letter-spacing:1.7px;font-weight:600;color:var(--green)}.eyebrow{display:flex;align-items:center;justify-content:center;gap:12px}.short-line{height:1px;width:26px;background:var(--green)}h1{margin:18px 0 26px;font-weight:400}.hero-name{display:block;font-family:var(--serif);font-size:104px;letter-spacing:-6px;line-height:1.15;margin-bottom:22px}.hero-name em{font-weight:400;color:var(--green)}.hero-title{display:block;font-family:var(--serif);font-size:36px;line-height:1.28;letter-spacing:-.8px}.hero-bottom{display:flex;align-items:center;justify-content:center;gap:18px;color:var(--muted);font-size:14px;margin:30px 0 42px}.conference{border:1px solid #bed3cb;color:var(--green);font-size:12px;letter-spacing:1px;font-weight:700;padding:3px 12px;border-radius:4px}.hero-divider{height:17px;width:1px;background:var(--line)}.text-link{color:var(--green);border-bottom:1px solid #a9c2b8;margin-left:16px}.teaser{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;text-align:left}.teaser-item{border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--soft);transition:transform .2s,box-shadow .2s}.teaser-item:hover{transform:translateY(-3px);box-shadow:0 8px 24px #163f3412}.teaser-item img{width:100%;aspect-ratio:4/2.65;object-fit:cover}.teaser-item>span{display:flex;gap:12px;align-items:center;padding:12px 16px;font-size:13px;font-weight:600;background:#fff}.teaser-item b{font-family:var(--serif);color:var(--green);font-weight:400}.teaser-item>span>span{margin-left:auto;font-size:12px;font-weight:400;color:var(--muted)}.teaser-caption{font-size:14px;color:var(--muted);margin:18px 0 0}.abstract-section{background:var(--soft);border-block:1px solid var(--line);padding:60px 0}.section-grid{display:grid;grid-template-columns:1fr 2.4fr;gap:64px}h2{font-family:var(--serif);font-size:38px;letter-spacing:-1px;font-weight:400;line-height:1.2;margin:12px 0 0}.abstract-copy{padding:4px 0;font-size:16px;line-height:1.85}.abstract-copy p{margin:0 0 20px}.abstract-copy p:last-child{margin-bottom:0}.placeholder-label{font-size:12px;display:inline-block;color:var(--muted);padding:3px 10px;border:1px dashed #aebfba;border-radius:3px}.placeholder-text{font-size:21px;font-family:var(--serif);margin:17px 0 8px}.placeholder-help{color:var(--muted);max-width:650px;margin:0;line-height:1.8}.method-section{padding-top:68px;padding-bottom:72px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:30px}.quiet-link{font-size:14px;color:var(--muted);white-space:nowrap}.quiet-link span{margin-left:6px}.framework{margin:0}.framework>a{display:block;padding:20px;border:1px solid var(--line);border-radius:8px;background:#fff}.framework img{width:100%}.framework figcaption{display:flex;gap:20px;padding:24px 0 0;font-size:15px;line-height:1.7}.figure-label{color:var(--green);font-size:12px;letter-spacing:1.3px;white-space:nowrap;padding-top:3px}.framework strong{font-weight:600}.caption-placeholder{color:var(--muted)}.comparison-section{padding:64px 0 66px;background:var(--soft);border-block:1px solid var(--line)}.section-heading>p{color:var(--muted);font-size:14px;margin:0;line-height:1.7}.comparison-shell{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:0 4px 16px #19372b04}.browser-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px 26px 0}.segmented{display:flex;gap:3px;padding:4px;border:1px solid var(--line);background:#f4f6f5;border-radius:7px}.segmented button{background:transparent;border:0;border-radius:4px;font-size:14px;padding:8px 17px;font-weight:500;white-space:nowrap}.segmented button[aria-pressed=true]{background:#fff;box-shadow:0 1px 5px #162f2412;color:var(--green)}.segmented button>span{display:inline-block;margin-left:8px;font-size:12px;opacity:.7}.selection-count{font-size:12px;letter-spacing:1.2px;color:var(--muted)}.example-selector{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:20px 26px 26px;border-bottom:1px solid var(--line)}.example-card{display:flex;text-align:left;align-items:center;gap:14px;padding:8px;border:1px solid var(--line);background:#fff;border-radius:7px;min-width:0;transition:border-color .15s}.example-card:hover{border-color:#6b9e90}.example-card[aria-pressed=true]{border-color:var(--green);background:#f2f8f5;box-shadow:inset 0 0 0 1px var(--green)}.example-card img{width:104px;height:70px;object-fit:cover;border-radius:3px}.example-card strong{font-size:15px;font-weight:600}.example-card small{display:block;color:var(--muted);font-size:12px;margin-top:3px}.example-check{margin-left:auto;margin-right:10px;border-radius:50%;width:19px;height:19px;border:1px solid var(--line);display:grid;place-items:center;font-size:12px;flex-shrink:0}.example-card[aria-pressed=true] .example-check{background:var(--green);color:white;border-color:var(--green)}.viewer-toolbar{display:flex;justify-content:space-between;align-items:center;padding:24px 26px;gap:20px}.viewer-toolbar>div:first-child{display:flex;align-items:baseline;gap:14px}.viewer-toolbar h3{margin:0;font-size:20px;letter-spacing:-.4px}.viewer-toolbar>div>span{color:var(--muted);font-size:13px}.video-grid{padding:0 26px;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}.video-card{margin:0;border:1px solid var(--line);border-radius:7px;overflow:hidden;background:white;min-width:0}.video-card.ours{border:2px solid var(--green)}.video-stage{position:relative;background:#f2f3f2;aspect-ratio:4/3;display:grid;place-items:center}.video-stage video{width:100%;height:100%;object-fit:contain;position:absolute;inset:0}.video-card figcaption{padding:10px 12px;display:flex;align-items:center;justify-content:space-between;font-size:14px;font-weight:600;border-top:1px solid var(--line);gap:8px}.video-card.ours figcaption{background:#f0f7f3;color:var(--green)}.ours-badge{font-size:10px;text-transform:uppercase;letter-spacing:.6px;font-weight:500}.unavailable{color:var(--muted);text-align:center;padding:14px;font-size:13px;line-height:1.5}.unavailable span{font-size:22px;display:block;margin-bottom:6px}.playback-bar{display:flex;align-items:center;gap:15px;margin:24px 26px 0;padding:17px 0;border-top:1px solid var(--line)}.play-button{display:flex;align-items:center;gap:9px;justify-content:center;min-width:90px;border:0;border-radius:5px;background:var(--green);color:#fff;font-size:14px;padding:9px 12px}.play-button>span:first-child{font-size:12px}.restart-button{font-size:24px;border:0;background:none;line-height:1;padding:5px;color:var(--muted)}.time-label{font-size:12px;font-variant-numeric:tabular-nums;color:var(--muted)}#timeline{accent-color:var(--green);flex:1;min-width:30px;cursor:pointer;height:6px}.speed-label{font-size:12px;display:flex;align-items:center;gap:8px;color:var(--muted)}select{background:white;border:1px solid var(--line);border-radius:4px;padding:4px;font-size:13px;color:var(--ink)}.viewer-footnote{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #edf0ed;background:#fbfcfb;padding:12px 26px;font-size:12px;color:var(--muted)}.comparison-note{text-align:center;color:var(--muted);font-size:13px;margin:20px 0 0}footer{display:flex;align-items:center;gap:26px;padding-top:32px!important;padding-bottom:32px!important}footer p{font-size:12px;color:var(--muted);max-width:490px;margin:0}footer>a:last-child{margin-left:auto;white-space:nowrap;font-size:13px;color:var(--muted)}.skip-link{position:fixed;top:-80px;left:12px;background:white;color:var(--green);padding:12px;z-index:100}.skip-link:focus{top:12px}@media(min-width:1500px){.wide-wrap{max-width:1480px}.video-grid{gap:14px}}@media(max-width:1050px){.nav-note{display:none}.nav-inner{justify-content:space-between}.hero-title{font-size:32px}.example-card img{width:80px;height:60px}.example-check{margin-right:2px}.video-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.section-grid{gap:35px}.section-heading>p{max-width:280px}}@media(max-width:700px){html{scroll-padding-top:75px}.wrap,.wide-wrap{padding-inline:20px}.nav-inner{padding:14px 20px;gap:20px}nav{gap:17px;font-size:12px}.wordmark{font-size:20px}.hero{padding-top:42px;padding-bottom:36px}.eyebrow{font-size:10px;letter-spacing:1.1px}.hero-name{font-size:80px;letter-spacing:-5px;margin-bottom:18px}.hero-title{font-size:27px;line-height:1.3;letter-spacing:-.5px}.desktop-break{display:none}.hero-bottom{flex-wrap:wrap;gap:12px;margin:26px 0;font-size:12px}.text-link{flex-basis:100%;border:0;margin:0}.teaser{gap:8px}.teaser-item img{aspect-ratio:1;object-fit:cover}.teaser-item>span{justify-content:center;padding:9px 4px;font-size:12px}.teaser-item b,.teaser-item>span>span{display:none}.teaser-caption{font-size:12px}.section-grid{grid-template-columns:1fr;gap:24px}.abstract-section{padding:36px 0}h2{font-size:32px}.section-kicker{font-size:10px}.placeholder-help{font-size:15px}.method-section{padding-top:40px;padding-bottom:42px}.section-heading{align-items:flex-start;flex-direction:column;gap:15px;margin-bottom:22px}.quiet-link{font-size:12px}.framework>a{padding:8px}.framework figcaption{gap:12px;font-size:13px;padding-top:16px}.figure-label{font-size:10px}.comparison-section{padding:40px 0}.section-heading>p{max-width:none;font-size:13px}.browser-toolbar{padding:16px 12px 0;flex-wrap:wrap;gap:8px}.segmented button{padding:8px 10px;font-size:12px}.selection-count{display:none}.example-selector{padding:14px 12px 18px;gap:8px}.example-card{flex-direction:column;align-items:stretch;gap:5px;padding:5px}.example-card img{width:100%;height:auto;aspect-ratio:4/3}.example-card strong{font-size:12px}.example-card>span{padding:0 3px}.example-card small,.example-check{display:none}.viewer-toolbar{padding:17px 12px;align-items:flex-start;flex-direction:column;gap:12px}.viewer-toolbar h3{font-size:18px}.viewer-toolbar>div>span{font-size:12px}.video-grid{padding:0 12px;gap:8px;grid-template-columns:repeat(2,minmax(0,1fr))}.video-card figcaption{font-size:12px;padding:8px}.ours-badge{font-size:9px}.playback-bar{margin:18px 12px 0;gap:9px;flex-wrap:wrap}.play-button{min-width:65px;padding:8px;font-size:12px}.restart-button{font-size:22px}.speed-label{margin-left:auto}.viewer-footnote{padding:12px;flex-wrap:wrap;gap:4px;font-size:11px}.comparison-note{font-size:12px}footer{flex-wrap:wrap;gap:14px}footer p{order:3;flex-basis:100%;font-size:11px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.sequence-selector-label{font-size:14px;font-weight:600;color:var(--ink)}

/* Interactive reconstruction viewer */
.interactive-section{padding-bottom:48px}.demo-shell{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}.demo-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:25px 26px}.demo-heading h2{font-size:29px;margin-top:6px}.demo-views{display:grid;grid-template-columns:1fr 1fr;border-block:1px solid var(--line)}.demo-views figure{margin:0;min-width:0}.demo-input{border-right:1px solid var(--line)}.demo-views figcaption{padding:11px 16px;display:flex;justify-content:space-between;font-size:14px;font-weight:600}.demo-views figcaption span{font-size:12px;color:var(--muted);font-weight:400}.demo-output figcaption{color:var(--green)}#demo-rgb{display:none}#demo-input-canvas{width:100%;height:auto;aspect-ratio:4/3;display:block;background:#f5f8f6}.demo-stage{width:100%;aspect-ratio:4/3;position:relative;background:#f5f8f6;touch-action:none;overflow:hidden}.demo-stage canvas{display:block;width:100%;height:100%}#demo-loading{position:absolute;inset:0;display:grid;place-items:center;color:var(--muted);font-size:14px}#demo-loading[hidden]{display:none}.demo-view-controls{padding:18px 22px;display:flex;align-items:center;gap:16px;border-bottom:1px solid var(--line)}.demo-reset{background:white;border:1px solid var(--line);border-radius:5px;padding:8px 12px;font-size:13px;white-space:nowrap}.demo-opacity-label{margin-left:auto;display:flex;align-items:center;gap:9px;font-size:12px;color:var(--muted);white-space:nowrap}.demo-opacity-label input{width:85px;accent-color:var(--green)}.demo-opacity-label output{min-width:34px;font-variant-numeric:tabular-nums}.demo-playback{padding:17px 22px;display:flex;align-items:center;gap:12px}.demo-step{border:1px solid var(--line);background:white;border-radius:4px;width:32px;height:34px;font-size:22px;line-height:1}.demo-playback>input{min-width:40px;flex:1;accent-color:var(--green)}.demo-hint{text-align:center;font-size:13px;color:var(--muted);margin:14px 0 0}@media(max-width:950px){.demo-view-controls{flex-wrap:wrap}.demo-opacity-label{margin-left:0}}@media(max-width:600px){.demo-heading{padding:18px 14px}.demo-heading h2{font-size:23px}.demo-views{grid-template-columns:1fr}.demo-input{border-right:0;border-bottom:1px solid var(--line)}.demo-view-controls{padding:14px;gap:10px}.demo-opacity-label{flex-basis:100%}.demo-opacity-label input{flex:1}.demo-playback{padding:14px;gap:7px;flex-wrap:wrap}.demo-playback .speed-label{flex-basis:100%;justify-content:flex-end}.demo-hint{font-size:12px}.interactive-section{padding-bottom:32px}}

.demo-error{margin:0;padding:12px 22px;color:var(--muted);font-size:13px;border-top:1px solid var(--line)}

@media(max-width:700px){.demo-heading{flex-wrap:wrap}.demo-sequences{flex-shrink:0}}

.demo-gallery{padding:18px 22px 12px;border-top:1px solid var(--line)}.demo-gallery-toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;font-size:13px;color:var(--muted)}.demo-gallery-navigation{display:flex;gap:6px}.demo-gallery-navigation button:disabled{cursor:default;opacity:.35}.demo-example-rail{display:grid;grid-auto-flow:column;grid-auto-columns:160px;gap:10px;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:thin;scrollbar-color:#b4c8bf transparent;padding:3px 3px 10px}.demo-example-card{display:block;min-width:0;background:white;border:1px solid var(--line);border-radius:7px;padding:5px;scroll-snap-align:start}.demo-example-card img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;border-radius:4px}.demo-example-card:hover{border-color:#6b9e90}.demo-example-card[aria-pressed=true]{border-color:var(--green);background:#f2f8f5;box-shadow:inset 0 0 0 1px var(--green)}.demo-example-card:focus-visible{outline-offset:0}@media(max-width:600px){.demo-gallery{padding:14px 12px 8px}.demo-example-rail{grid-auto-columns:120px}}

/* Lightweight looping reconstructions behind the paper title. */
.hero-mosaic{position:relative;isolation:isolate;overflow:hidden;max-width:none;margin-bottom:48px;padding:0;background:#edf2ef;border-bottom:1px solid var(--line)}.hero-media{position:absolute;inset:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-template-rows:repeat(2,minmax(0,1fr));gap:8px;padding:8px}.hero-media video{width:100%;height:100%;min-height:0;object-fit:cover;border-radius:5px}.hero-wash{position:absolute;inset:0;background:radial-gradient(ellipse at center,rgba(255,255,255,.94) 0%,rgba(255,255,255,.86) 28%,rgba(255,255,255,.3) 77%,rgba(255,255,255,.13) 100%),linear-gradient(0deg,rgba(255,255,255,.65),transparent 25%,transparent 80%,rgba(255,255,255,.3));pointer-events:none}.hero-content{position:relative;z-index:1;min-height:590px;display:flex;flex-direction:column;justify-content:center;padding-top:66px;padding-bottom:80px}.hero-mosaic h1{margin-bottom:0}.hero-mosaic .eyebrow{color:#145a51}@media(max-width:700px){.hero-mosaic{margin-bottom:28px}.hero-media{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:repeat(4,minmax(0,1fr));gap:5px;padding:5px}.hero-content{min-height:650px;padding-top:64px;padding-bottom:80px}.hero-wash{background:radial-gradient(ellipse at center,rgba(255,255,255,.96) 0%,rgba(255,255,255,.88) 32%,rgba(255,255,255,.32) 83%,rgba(255,255,255,.12) 100%)}}

.gpt-comparison-section{padding-top:64px;padding-bottom:64px}.gpt-comparison-section .section-heading{margin-bottom:20px}.gpt-experiment-note{max-width:780px;margin:0 0 30px;color:var(--muted);line-height:1.8}.gpt-experiment-note strong{font-weight:600;color:var(--ink)} .gpt-video-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.gpt-timeline{accent-color:var(--green);flex:1;min-width:30px;cursor:pointer;height:6px}.gpt-gallery{padding-top:18px}.gpt-comparison-shell .playback-bar{margin-bottom:0}@media(max-width:700px){.gpt-comparison-section{padding-top:40px;padding-bottom:40px}.gpt-comparison-section h2{font-size:29px}.gpt-experiment-note{font-size:15px;margin-bottom:22px}.gpt-video-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.gpt-video-grid figcaption{flex-wrap:wrap;gap:3px;font-size:12px}.gpt-comparison-shell .viewer-toolbar{flex-direction:row}.gpt-comparison-shell .viewer-toolbar>div:first-child{flex-wrap:wrap;gap:8px}.gpt-comparison-shell .viewer-toolbar>div>span{font-size:12px}}