:root{--bg:#fafaf7;--ink:#202d37;--muted:#66737e;--blue:#3e56ba;--teal:#167d8d;--line:#dce1e4;--tint:#eef2f5;--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:84px}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a:hover{color:var(--blue)}button,input{font:inherit}button,a,input{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}:focus-visible{outline:3px solid #8a9ae1;outline-offset:5px}button{color:var(--ink)}img,svg,video{max-width:100%}img{display:block}figure{margin:0;min-width:0}.wrap{max-width:1180px;width:calc(100% - 80px);margin:auto}.header{position:sticky;top:0;z-index:20;background:rgba(250,250,247,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav{height:66px;display:flex;justify-content:space-between;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:9px;font-size:15px;letter-spacing:.02em;font-weight:650}.brand span{font-size:12px;font-weight:400;color:var(--muted);margin-left:6px}.nav-links{display:flex;gap:25px;font-size:12px}.nav-links a.active{color:var(--blue)}.nav-code{font-weight:650}#reading-progress{position:absolute;bottom:-1px;height:2px;background:var(--blue);width:0}.hero{padding-top:67px}.eyebrow,.section-number,.mini-label,.figure-kicker{font-size:10px;letter-spacing:.15em;font-weight:650;color:var(--muted)}.eyebrow{display:flex;align-items:center;gap:10px;justify-content:center}.dot{width:6px;height:6px;background:var(--blue);border-radius:100%}h1{font-family:var(--serif);font-size:clamp(60px,8.5vw,112px);line-height:.98;letter-spacing:-.065em;font-weight:400;margin:24px 0 22px;text-align:center}h1 em,h2 em{font-weight:400;color:var(--blue)}.hero-deck{text-align:center;color:var(--muted);font-size:19px;line-height:1.45;margin:0}.authors{display:flex;justify-content:center;gap:62px;margin:30px 0}.authors div{display:flex;flex-direction:column;text-align:center;gap:3px}.authors strong{font-weight:550;font-size:14px}.authors span{font-size:12px;color:var(--muted)}.hero-links{display:flex;justify-content:center;gap:10px;margin:27px 0 10px}.pill{border:1px solid var(--line);border-radius:100px;padding:10px 19px;font-size:12px;display:flex;gap:22px;align-items:center;transition:background .2s}.pill:hover{background:#e9edf6}.pill.primary{background:var(--blue);border-color:var(--blue);color:white}.pill.primary:hover{background:#2d4298}.draft-note{font-size:10px;color:var(--muted);text-align:center;margin:0 0 42px}.hero-media{display:grid;grid-template-columns:1fr 1fr;gap:26px}.latest-viewer{background:#fff;border:1px solid var(--line);overflow:hidden}.viewer-heading{padding:14px 18px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.viewer-heading h2{margin:0;font:600 13px var(--sans);letter-spacing:0}.viewer-heading span{font-size:10px;letter-spacing:.05em;color:var(--muted)}.duo-labels{display:grid;grid-template-columns:1fr 1fr;text-align:center;background:#f6f8fa;padding:8px 0;font-size:10px;letter-spacing:.08em;text-transform:uppercase}.duo-labels span:last-child{color:var(--blue);font-weight:600}.latest-video{width:100%;display:block;aspect-ratio:2/1;object-fit:contain;background:white}.example-picker{display:flex;gap:5px;align-items:center;flex-wrap:wrap;padding:12px 16px;border-top:1px solid var(--line)}.example-picker>span{font-size:10px;color:var(--muted);letter-spacing:.06em;margin-right:6px}.example-picker button{border:1px solid transparent;padding:3px 9px;background:none;color:var(--muted);font-size:11px;border-radius:3px}.example-picker button.active{border-color:#ccd4ee;background:#eef1fc;color:var(--blue)}.example-picker button:hover{background:#eef1fc}.media-footer{display:flex;justify-content:space-between;gap:20px;padding:14px 0;color:var(--muted);font-size:11px}.text-button{border:0;background:none;padding:0;white-space:nowrap;font-size:12px;color:var(--blue);font-weight:500}.takeaways{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:33px;padding:25px 0}.takeaways>div{display:flex;align-items:center;justify-content:center;gap:18px;border-right:1px solid var(--line)}.takeaways>div:last-child{border:0}.takeaway-number{font:48px var(--serif);letter-spacing:-.05em;color:var(--blue)}.takeaway-number>span{font-size:24px}.takeaways>div>span:last-child{font-size:11px;line-height:1.6;color:var(--muted)}.section{padding-top:105px;padding-bottom:15px}.section-heading{margin-bottom:36px}.section-number{color:var(--blue)}h2{font:400 clamp(34px,4vw,51px)/1.12 var(--serif);letter-spacing:-.035em;margin:17px 0 17px}.section-heading p{font-size:14px;color:var(--muted);line-height:1.7;margin:0;max-width:690px}.evolution{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.evolution article{padding:22px 19px 23px;border-right:1px solid var(--line);display:flex;flex-direction:column}.evolution article:first-child{padding-left:0}.evolution article:last-child{border:0}.evolution .our-idea{background:#edf0f9;padding-left:19px}.evolution h3{font:400 24px var(--serif);margin:12px 0 3px;letter-spacing:-.025em}.evolution svg{width:100%;height:105px}.evolution p{font-size:12px;line-height:1.65;min-height:42px;margin:6px 0 14px}.evolution a{font-size:11px;color:var(--blue)}.evolution .mini-label{font-size:8px;white-space:nowrap}.caption{color:var(--muted);font-size:11px;line-height:1.7;margin:15px 0 0}.caption strong{color:var(--ink);font-weight:550}.geometry-block{display:grid;grid-template-columns:1.6fr 1fr;border:1px solid var(--line);background:white}.geometry-visual{padding:23px 24px;border-right:1px solid var(--line)}.geometry-visual svg{display:block;width:100%;margin:13px 0 8px}.svg-label{font:12px var(--sans);fill:var(--muted)}.svg-math{font:italic 18px var(--serif)}.geometry-control{display:flex;align-items:center;gap:20px;font-size:11px;color:var(--blue);margin-top:10px}.geometry-control input{flex:1;min-width:50px;accent-color:var(--blue)}.geometry-math{padding:28px 34px;display:flex;flex-direction:column;justify-content:center;gap:25px}.geometry-math .katex-display{text-align:left;margin:12px 0 0}.geometry-math .caption{margin:0}.training-equations{display:grid;grid-template-columns:1fr;gap:0;margin-top:26px;border-top:1px solid var(--line)}.training-equations>div{display:grid;grid-template-columns:235px 1.35fr 1fr;gap:20px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}.training-equations .mini-label{font-size:9px}.training-equations p{font-size:11px;color:var(--muted);margin:0}.training-equations .katex{font-size:1em}.training-equations .katex-display{margin:0;text-align:left}.pipeline{display:grid;grid-template-columns:1fr 36px .95fr 36px 1.2fr;gap:17px;align-items:center;margin-top:43px;padding:35px 25px;background:#fff;border:1px solid var(--line)}.pipeline-inputs,.pipeline-output{display:flex;flex-direction:column;align-items:center;gap:10px}.history-frames,.future-frames{display:grid;grid-template-columns:repeat(4,1fr);gap:3px;width:100%;margin-top:3px}.history-frames img,.future-frames img{width:100%;border:1px solid #dce1e4}.pipeline-label{color:var(--muted);font-size:10px;text-align:center}.actions-vector{display:flex;justify-content:space-around;width:100%;color:var(--blue);margin-top:4px;font-size:19px}.pipeline-arrow{font-size:26px;color:#9eaabe;text-align:center}.map-box{position:relative;border:1px solid #adb9e1;border-radius:4px;background:#f2f4fc;display:flex;align-items:center;flex-direction:column;padding:20px 12px;gap:10px}.map-box .katex{font-size:1.4em}.map-box .katex-display{margin:3px 0 9px}.map-box-bottom{font-size:10px;color:var(--blue)}.noise-swatch{width:39px;height:39px;border:1px solid #ccd4e3;background:url('media/noise.png') center/cover;transform:rotate(-5deg);margin-bottom:2px}.inference-equation{display:flex;flex-direction:column;align-items:center;padding:25px 15px 28px;border-bottom:1px solid var(--line);text-align:center}.inference-equation .katex{font-size:1.15em}.inference-equation .caption{margin:0}.supervision-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin:30px 0}.supervision-grid h3{font:400 22px var(--serif);margin:10px 0 18px;letter-spacing:-.03em}.supervision-grid p{font-size:12px;color:var(--muted);line-height:1.7;max-width:290px}.supervision-grid .katex{font-size:.98em}.supervision-grid .katex-display{height:55px;display:flex;align-items:center;justify-content:flex-start;margin:0}.loss-weights{height:55px;display:flex;gap:15px;align-items:center}.loss-weights span{font-size:10px;color:var(--muted);display:flex;flex-direction:column}.loss-weights b{font-size:18px;color:var(--blue);font-weight:500}.recipe-line,.latent-strip{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:20px 25px;background:#f0f3f6;font-size:12px}.recipe-line b,.latent-strip b{color:#94a0b5;font-weight:400}.accent{color:var(--blue);font-weight:550}.figure-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px;margin-top:33px}.figure-grid figure, .decision-grid figure{background:#fff;border:1px solid var(--line);padding:17px 16px 4px}.figure-grid img,.decision-grid img{width:100%;height:auto}.figure-grid figcaption,.decision-grid figcaption{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:0 6px 10px}.figure-grid figcaption strong,.decision-grid figcaption strong{font-size:12px;font-weight:550}.figure-grid figcaption span,.decision-grid figcaption span{font-size:10px;color:var(--muted)}.finding{margin:25px 0 0;display:grid;grid-template-columns:175px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}.finding>span{color:var(--blue);font-size:9px;letter-spacing:.1em;font-weight:650}.finding p{font-size:13px;margin:0;color:var(--muted)}.finding b{color:var(--ink);font-weight:500}.benchmark-block{margin-top:34px}.table-title{display:flex;justify-content:space-between;gap:20px;align-items:baseline;margin-bottom:14px}.table-title h3{font:24px var(--serif);margin:0}.table-title span{color:var(--muted);font-size:11px}.table-scroll{overflow-x:auto;max-width:100%;scrollbar-width:thin}table{width:100%;border-collapse:collapse;font-size:12px;font-variant-numeric:tabular-nums;white-space:nowrap}th,td{text-align:right;padding:12px 12px;border-bottom:1px solid var(--line)}th:first-child,td:first-child{text-align:left;padding-left:10px}thead th{font-size:10px;color:var(--muted);font-weight:500;background:#f0f3f5;border-top:1px solid var(--line)}th small,td small{display:block;font-size:9px;color:var(--muted);font-weight:400}tbody th{font-weight:450}tr.highlight{background:#eef1fb;color:#3049a5}tr.highlight th{font-weight:650}tr.highlight td{font-weight:600}.reference-row{border-left:2px solid var(--line);padding:0 0 0 18px;margin-top:24px;display:flex;flex-direction:column;gap:5px;font-size:11px;color:var(--muted)}.reference-row strong{color:var(--ink);font-size:12px;font-weight:550}.section-subheading{display:flex;justify-content:space-between;align-items:baseline;gap:20px;margin-top:49px}.section-subheading h3{font:29px var(--serif);letter-spacing:-.035em;margin:0}.section-subheading span{font-size:11px;color:var(--muted)}.comparison-tabs{display:flex;gap:20px;border-bottom:1px solid var(--line);margin-bottom:24px}.comparison-tabs button{padding:10px 0 12px;border:0;background:none;border-bottom:2px solid transparent;font-size:13px;color:var(--muted)}.comparison-tabs button.active{color:var(--blue);border-color:var(--blue)}.method-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:10px}.method-tile{min-width:0}.method-tile canvas{width:100%;height:auto;aspect-ratio:1/1;border:1px solid var(--line);background:white;display:block}.method-tile figcaption{font-size:10px;margin-bottom:8px;min-height:35px}.method-tile figcaption span{display:block;color:var(--muted);font-size:9px}.method-tile.ours figcaption{color:var(--blue)}.method-tile.ours canvas{border-color:var(--blue)}.missing-media{aspect-ratio:1;display:flex;align-items:center;justify-content:center;font-size:10px;background:#edf0f3;color:var(--muted);text-align:center;padding:6px}.video-source{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.comparison-controls{display:flex;align-items:center;gap:22px;padding:20px 0}.comparison-controls input{flex:1;min-width:60px;accent-color:var(--blue)}.comparison-controls output{font-size:10px;color:var(--muted);font-variant-numeric:tabular-nums}.comparison-viewer .example-picker{padding-left:0}.error{font-size:12px;color:#a24425}.section-tinted{margin-top:80px;padding-top:65px;padding-bottom:52px;background:#f0f3f3}.section-tinted .latent-strip{background:#e5ecee}.native-status{display:flex;align-items:flex-start;gap:13px;border:1px solid #cfdadd;background:#f8faf9;padding:20px;margin-top:23px}.status-dot{width:7px;height:7px;flex-shrink:0;background:var(--teal);border-radius:100%;margin-top:6px}.native-status strong{font-size:12px;font-weight:550}.native-status p{font-size:11px;color:var(--muted);line-height:1.7;max-width:690px;margin:5px 0 0}.native-status a{margin-left:auto;white-space:nowrap;color:var(--teal);font-size:11px}.decision-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:30px;align-items:start}.decision-grid table{font-size:11px}.decision-grid th,.decision-grid td{padding:13px 9px}.decision-grid .table-scroll{margin-top:8px}.open-questions{margin-top:55px;padding:26px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.open-questions>div{display:grid;grid-template-columns:repeat(3,1fr);gap:35px}.open-questions p{font-size:12px;color:var(--muted);margin:16px 0 0}.open-questions strong{color:var(--ink);font-weight:500}.footer{display:grid;grid-template-columns:1fr 1fr;padding-top:58px;padding-bottom:36px;margin-top:30px;gap:30px}.footer .brand{font:22px var(--serif);letter-spacing:-.02em}.footer p{font-size:11px;color:var(--muted);margin:9px 0}.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:10px;font-size:11px}.footer-note{grid-column:1/-1;border-top:1px solid var(--line);padding-top:18px!important;max-width:none}.mobile-only{display:none}.skip{position:fixed;left:20px;top:-80px;background:var(--ink);color:white;padding:10px;z-index:50}.skip:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.katex-display{overflow-x:auto;overflow-y:hidden;padding:3px 0}.katex{line-height:1.4}.source-equation{overflow-x:auto}
@media(min-width:1500px){.wrap{max-width:1210px}}
@media(max-width:1000px){.wrap{width:calc(100% - 48px)}.nav-links{gap:18px}.brand span{display:none}.evolution{grid-template-columns:repeat(2,1fr)}.evolution article{padding:22px!important;border-bottom:1px solid var(--line)}.evolution article:nth-child(2){border-right:0}.evolution article:nth-child(3),.evolution article:nth-child(4){border-bottom:0}.training-equations>div{grid-template-columns:1fr 2fr}.training-equations p{grid-column:2}.training-equations .katex{font-size:1.05em}.geometry-math{padding:25px}.pipeline{gap:10px;padding:25px 18px;grid-template-columns:1fr 20px 1fr 20px 1fr}.supervision-grid{gap:18px}.supervision-grid .katex{font-size:.82em}.supervision-grid h3{font-size:20px}.figure-grid{gap:20px}.method-grid{grid-template-columns:repeat(4,1fr);gap:18px}.decision-grid{grid-template-columns:1fr}.decision-grid figure{max-width:680px}.decision-table{max-width:680px}.nav-links a:nth-child(4){display:none}.hero h1{font-size:85px}.authors{gap:40px}.evolution svg{height:94px}.figure-grid figcaption{align-items:flex-start}.figure-grid figcaption span{max-width:130px;text-align:right}.recipe-line{font-size:11px;padding:18px 14px}}
@media(max-width:680px){.wrap{width:calc(100% - 36px)}.nav{height:57px}.nav-links{gap:17px;font-size:11px}.nav-code{display:none}.brand{font-size:13px;gap:5px}.brand svg{width:24px}.hero{padding-top:43px}.hero h1{font-size:67px;line-height:1.01}.eyebrow{font-size:8px;letter-spacing:.12em}.hero-deck{font-size:15px}.authors{gap:20px;margin:26px 0}.authors strong{font-size:11px}.authors span{font-size:10px}.hero-links{gap:7px;flex-wrap:wrap}.pill{font-size:10px;padding:9px 12px;gap:15px}.draft-note{font-size:9px;margin-bottom:26px}.hero-media{grid-template-columns:1fr;gap:19px}.viewer-heading{padding:12px 15px}.latest-video{max-height:300px}.media-footer{font-size:10px;line-height:1.65;align-items:center;gap:15px}.media-footer>span{max-width:230px}.media-footer button{font-size:11px}.takeaways{gap:8px;margin-top:23px;padding:21px 0}.takeaways>div{flex-direction:column;gap:7px;align-items:flex-start;padding-left:9px}.takeaway-number{font-size:37px}.takeaway-number>span{font-size:20px}.takeaways>div>span:last-child{font-size:9px}.section{padding-top:66px}.section-heading{margin-bottom:25px}.section-heading h2{font-size:38px}.section-heading p{font-size:12px;line-height:1.75}.section-number{font-size:9px}.evolution article{padding:17px 12px!important}.evolution h3{font-size:21px}.evolution .mini-label{font-size:7px;letter-spacing:.075em;white-space:normal;min-height:23px}.evolution svg{height:77px}.evolution p{font-size:11px;min-height:52px}.evolution a{font-size:10px}.caption{font-size:10px;line-height:1.75}.geometry-block{grid-template-columns:1fr}.geometry-visual{border-right:0;border-bottom:1px solid var(--line);padding:18px}.geometry-math{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding:20px 15px}.geometry-math .mini-label{font-size:7px;letter-spacing:.04em}.geometry-math .katex{font-size:.8em}.geometry-math .caption{grid-column:1/-1}.geometry-control{font-size:10px;gap:12px}.training-equations>div{display:flex;flex-direction:column;align-items:flex-start;gap:12px;padding:19px 0;min-width:0}.training-equations>div>div{max-width:100%}.training-equations .katex{font-size:.9em}.training-equations .mini-label{font-size:8px}.pipeline{display:grid;grid-template-columns:1fr;gap:15px;padding:24px;max-width:100%}.pipeline-inputs .history-frames{max-width:265px}.pipeline-inputs .actions-vector{max-width:220px}.pipeline-arrow{transform:rotate(90deg);font-size:24px;height:25px;line-height:1}.map-box{width:240px;margin:auto;max-width:100%}.pipeline-output{width:100%;max-width:275px;margin:auto}.pipeline .figure-kicker{font-size:8px}.inference-equation{padding:24px 0}.inference-equation>div{max-width:100%;overflow:auto}.inference-equation .katex{font-size:.85em}.supervision-grid{grid-template-columns:1fr;gap:22px}.supervision-grid article{border-bottom:1px solid var(--line);padding-bottom:17px}.supervision-grid h3{font-size:24px;margin-bottom:9px}.supervision-grid p{max-width:none;margin:8px 0 0}.supervision-grid .katex{font-size:1em}.supervision-grid .katex-display{height:auto;margin:15px 0}.loss-weights{height:45px;gap:30px}.recipe-line{display:grid;grid-template-columns:1fr 25px 1fr;gap:12px;text-align:center;font-size:10px}.recipe-line b:nth-child(4){display:none}.recipe-line span{line-height:1.6}.figure-grid{grid-template-columns:1fr;gap:20px;margin-top:23px}.figure-grid figure,.decision-grid figure{padding:15px 10px 2px}.figure-grid figcaption span{max-width:none;font-size:9px}.figure-grid figcaption strong{font-size:11px}.finding{grid-template-columns:1fr;gap:8px}.finding p{font-size:12px}.table-title h3{font-size:22px}.table-title span{font-size:9px;max-width:150px;text-align:right}table{font-size:11px}th,td{padding:10px 10px}thead th{font-size:9px}.reference-row{font-size:10px}.section-subheading{display:block;margin-top:38px}.section-subheading h3{font-size:25px;margin-bottom:10px}.section-subheading span{font-size:10px}.method-grid{grid-template-columns:repeat(2,1fr);gap:18px 12px}.method-tile figcaption{font-size:11px;min-height:32px}.method-tile canvas{width:100%;max-width:none}.comparison-controls{gap:16px;flex-wrap:wrap}.comparison-controls input{order:3;flex-basis:70%}.comparison-controls output{order:4}.comparison-controls .text-button{font-size:11px}.section-tinted{margin-top:58px;padding-top:45px;padding-bottom:38px}.latent-strip{display:grid;grid-template-columns:1fr 20px 1fr;gap:15px;padding:20px 15px;font-size:11px;text-align:center}.latent-strip b:nth-child(4){display:none}.native-status{padding:16px;flex-wrap:wrap}.native-status>div{flex:1;min-width:200px}.native-status a{margin-left:20px;font-size:10px}.native-status strong{font-size:11px}.native-status p{font-size:10px}.decision-grid{gap:20px}.decision-grid table{font-size:10px}.decision-grid th,.decision-grid td{padding:12px 6px}.open-questions>div{grid-template-columns:1fr;gap:4px}.open-questions p{font-size:12px}.footer{grid-template-columns:1fr;padding-top:35px;gap:20px}.footer-links{font-size:11px}.footer-note{font-size:9px!important}.mobile-only{display:block}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

@media(max-width:680px){.hero h1{font-size:clamp(48px,15.6vw,61px)}.hero h1 em{font-size:.86em;white-space:nowrap}}

.katex .accent{color:inherit;font-weight:inherit}