@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;550;600;650;700&family=Fraunces:opsz,wght@9..144,400;9..144,450;9..144,500;9..144,600&display=swap');
:root{color-scheme:dark;--bg:#0a0c10;--surface:#12161c;--surface-raised:#191e26;--ink:#f4f2ed;--muted:#a3a9b4;--faint:#7c8491;--line:#2a3039;--gold:#e1b976;--teal:#88cec1;--serif:'Fraunces',Georgia,serif;--sans:'DM Sans',Arial,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.65 var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{outline-offset:5px}button{cursor:pointer}img,video{max-width:100%;display:block}h1,h2,h3,p,figure{margin:0}.container{max-width:1200px;margin:auto;padding-left:32px;padding-right:32px}.site-header{height:80px;display:flex;align-items:center;justify-content:space-between;max-width:1440px;margin:auto;padding:0 48px;border-bottom:1px solid var(--line)}.wordmark{font:500 23px var(--serif);letter-spacing:-.7px}.wordmark span{color:var(--gold)}.site-header nav{display:flex;gap:30px;font-size:14px;color:var(--muted)}.site-header a:hover{color:var(--gold)}.header-paper{font-size:14px}.hero{text-align:center;padding-top:90px;padding-bottom:70px}.eyebrow{text-transform:uppercase;font-size:12px;font-weight:650;letter-spacing:.18em;color:var(--gold);margin-bottom:20px}.hero h1{font:500 clamp(64px,8vw,110px)/1.12 var(--serif);letter-spacing:-.055em}.hero h1 span{color:var(--gold)}.hero-subtitle{font-size:clamp(24px,3.3vw,40px);line-height:1.3;font-weight:450;letter-spacing:-.025em;margin-top:20px}.hero-description{font-size:18px;color:var(--muted);margin:24px auto 0}.hero-actions{display:flex;gap:12px;justify-content:center;margin-top:30px}.button{border:1px solid var(--line);border-radius:6px;padding:11px 22px;font-size:14px;font-weight:600;background:#141820;display:inline-flex;align-items:center;justify-content:center;gap:10px}.button-primary{background:var(--gold);border-color:var(--gold);color:#17120c}.button:hover{border-color:var(--gold);filter:brightness(1.07)}.section{padding-top:96px;padding-bottom:96px;scroll-margin-top:20px}.section h2{font:450 clamp(32px,4vw,48px)/1.15 var(--serif);letter-spacing:-.03em}.section-intro{max-width:780px;font-size:18px;color:var(--muted);margin-top:25px}.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);margin-top:48px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.stat-strip>div{padding:28px 24px;border-right:1px solid var(--line)}.stat-strip>div:first-child{padding-left:0}.stat-strip>div:last-child{border-right:0}.stat-strip strong{font:450 48px var(--serif);display:block;line-height:1.2}.stat-strip span{font-size:14px;color:var(--muted)}.site-footer{border-top:1px solid var(--line);padding-top:32px;padding-bottom:40px;display:flex;justify-content:space-between;gap:20px;color:var(--faint);font-size:14px}.skip-link{position:fixed;top:-100px;left:12px;z-index:50;background:var(--gold);color:#111;padding:12px}.skip-link:focus{top:10px}@media(max-width:760px){.container{padding-left:20px;padding-right:20px}.site-header{padding:0 20px;height:68px}.site-header nav{gap:16px;font-size:13px}.header-paper{display:none}.hero{padding-top:60px;padding-bottom:45px}.hero-subtitle{font-size:26px}.hero-description{font-size:16px}.section{padding-top:64px;padding-bottom:64px}.section-intro{font-size:16px}.stat-strip{grid-template-columns:1fr 1fr}.stat-strip>div{padding:20px!important}.stat-strip>div:nth-child(2){border-right:0}.stat-strip>div:nth-child(-n+2){border-bottom:1px solid var(--line)}.stat-strip strong{font-size:40px}.site-footer{flex-direction:column;gap:8px}.desktop-break{display:none}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
/* Research page composition */
.hero{padding-top:60px;padding-bottom:28px}.hero h1{font-size:clamp(64px,8vw,104px)}.hero-subtitle{font-size:clamp(24px,3.2vw,36px);margin-top:16px}.hero-description{margin-top:20px}.hero-actions{margin-top:24px}.button svg{width:17px;height:17px;stroke-width:1.5}.hero-reel{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:54px;text-align:left}.reel-item{position:relative;overflow:hidden;aspect-ratio:1.63;background:var(--surface);border-radius:8px}.reel-item video{width:100%;height:100%;object-fit:cover}.reel-item figcaption{position:absolute;inset:auto 0 0;padding:40px 18px 14px;background:linear-gradient(transparent,rgba(0,0,0,.86));pointer-events:none}.reel-item figcaption span{font-size:12px;color:#e5dfd6;display:block}.reel-item strong{font-size:16px;font-weight:500;display:block}.reel-caption{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:14px;text-align:left;color:var(--faint);font-size:13px}.text-button{border:0;background:none;color:var(--muted);padding:6px 0;font-size:13px;white-space:nowrap}.text-button:hover{color:var(--gold)}.hero .stat-strip{margin-top:40px;text-align:left}.section-top{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:end;margin-bottom:44px}.section-top .section-intro{margin:0;font-size:17px;line-height:1.8}.section-tinted{background:#0e1117;border-top:1px solid #1c222c;border-bottom:1px solid #1c222c}.paper-figure{margin-top:36px}.paper-figure img{width:100%;height:auto;border:1px solid var(--line);border-radius:8px}.paper-figure figcaption{margin-top:14px;color:var(--faint);font-size:14px;text-align:center}.principles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px;margin-top:40px}.index{font-size:12px;color:var(--gold);font-weight:600;letter-spacing:.07em}.principles h3{font-size:18px;font-weight:550;margin-top:9px}.principles p{font-size:15px;color:var(--muted);margin-top:10px;line-height:1.8}.comparison-shell{background:var(--bg);border:1px solid var(--line);border-radius:10px;overflow:hidden}.scene-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 24px 10px}.scene-picker{display:flex;align-items:center;gap:16px;min-width:0;flex:1}.scene-picker label{font-size:14px;color:var(--faint)}select{color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:5px;min-height:42px;padding:8px 34px 8px 12px;font-size:15px;max-width:100%}.scene-picker select{width:430px}.scene-navigation{display:flex;align-items:center;gap:8px}.scene-navigation span{color:var(--faint);font-size:13px;min-width:48px;text-align:center;font-variant-numeric:tabular-nums}.icon-button{min-width:40px;min-height:40px;background:var(--surface);border:1px solid var(--line);border-radius:5px;color:var(--ink);font-size:20px;display:inline-flex;align-items:center;justify-content:center}.icon-button:hover{border-color:var(--gold);color:var(--gold)}.scene-detail{display:flex;justify-content:space-between;padding:0 24px 18px;gap:12px;color:var(--muted);font-size:13px}.setting-label{color:var(--gold)}.comparison-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.model-card{background:var(--bg);min-width:0}.model-header{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:14px 18px 5px}.model-header label{width:100%;min-width:0}.model-header select{font-weight:550;padding-left:0;border-color:transparent;background:transparent;width:100%;font-size:16px;min-height:34px}.model-header select:hover{border-color:var(--line)}.video-open{font-size:20px;color:var(--faint);padding:4px 8px}.video-open:hover{color:var(--gold)}.model-condition{font-size:13px;color:var(--faint);padding:0 18px 13px}.model-video-wrap{aspect-ratio:16/9;position:relative;background:#07090c}.model-video-wrap video{width:100%;height:100%;object-fit:contain}.video-error{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:var(--surface);padding:24px;text-align:center;font-size:14px}.video-error[hidden]{display:none}.playback-toolbar{display:flex;align-items:center;gap:14px;padding:20px 24px 4px}.playback-toolbar .button{min-width:116px;padding:9px 18px}.playback-toolbar input{flex:1;min-width:40px;width:100%;accent-color:var(--gold);cursor:pointer}.playback-toolbar output{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap;min-width:76px;text-align:right}.playback-status{padding:9px 24px 16px;min-height:42px;color:var(--faint);font-size:13px}.fine-print{margin-top:20px;font-size:14px;color:var(--faint);line-height:1.8}.dataset-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.dataset-card{padding:28px 26px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}.dataset-card-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.dataset-card h3{font-size:19px;font-weight:550}.badge{font-size:12px;color:var(--teal);border:1px solid #2e4847;padding:3px 9px;border-radius:30px;white-space:nowrap}.dataset-number{font:450 64px/1.1 var(--serif);margin-top:24px}.dataset-number span{font:400 14px var(--sans);color:var(--muted);margin-left:12px}.dataset-description{color:var(--muted);font-size:15px;line-height:1.8;margin-top:22px;min-height:108px}.dataset-card dl{margin:22px 0 0;padding-top:12px;border-top:1px solid var(--line)}.dataset-card dl>div{display:flex;justify-content:space-between;gap:16px;font-size:14px;margin-top:10px}.dataset-card dt{color:var(--muted)}.dataset-card dd{margin:0;font-variant-numeric:tabular-nums}.dataset-footnote{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 32px;margin-top:24px;color:var(--faint);font-size:13px}.representation-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:76px;margin-bottom:26px}.representation-heading h3{font:450 29px/1.25 var(--serif);letter-spacing:-.02em}.representation-heading p{font-size:15px;color:var(--muted);margin-top:10px}.segmented{display:flex;align-items:stretch;background:#171c23;border:1px solid var(--line);border-radius:6px;padding:4px;max-width:100%}.segmented button{padding:8px 13px;border:0;background:transparent;color:var(--muted);border-radius:3px;font-size:14px;white-space:nowrap}.segmented button.active{background:#313039;color:var(--ink)}.segmented button:hover{color:var(--gold)}.representation-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.representation-grid figure{overflow:hidden}.representation-grid img{width:100%;height:auto;aspect-ratio:16/9;border-radius:6px}.representation-grid figcaption{position:relative;padding-top:16px;padding-left:17px}.representation-key{position:absolute;top:24px;left:0;width:6px;height:6px;border-radius:1px}.white-key{background:#d5dbe1}.mixed-key{background:#57a8d1}.obb-key{background:var(--gold)}.representation-grid h4{font-size:17px;font-weight:550;margin:0}.representation-grid p{font-size:14px;color:var(--muted);margin:7px 0 0;line-height:1.8}.table-controls{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:22px}.table-setting{font-size:13px;color:var(--faint);white-space:nowrap}.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:8px;background:var(--bg);scrollbar-color:#4b505a #10141b}table{border-collapse:collapse;width:100%;text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums;font-size:14px}th,td{padding:16px 16px;border-bottom:1px solid #242a33}thead th{background:#181d25;font-weight:500;font-size:13px;color:var(--muted)}th:first-child{text-align:left;position:sticky;left:0;z-index:1;min-width:248px}thead th:first-child{z-index:2}tbody th{background:var(--bg);font-weight:500}tbody td{color:#c9cdd4}tbody tr:last-child>*{border-bottom:0}tbody tr:hover>*{background:#191f29}tbody th span{display:block}tbody th small{display:block;font-size:12px;color:var(--faint);font-weight:400;margin-top:3px}.metric-sort{padding:6px 0;border:0;background:none;color:inherit;font-size:13px;white-space:nowrap}.metric-sort:hover,th[aria-sort=ascending] .metric-sort,th[aria-sort=descending] .metric-sort{color:var(--gold)}.best-value{color:var(--gold);font-weight:600;background:rgba(225,185,118,.07);border-radius:4px;padding:4px 6px}.table-note{display:flex;justify-content:space-between;gap:28px;font-size:13px;color:var(--faint);margin-top:18px;align-items:baseline}.table-note a{color:var(--muted);white-space:nowrap}.table-note a:hover{color:var(--gold)}.best-key{color:var(--gold)}.metric-notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px;margin-top:34px}.metric-notes p{font-size:14px;color:var(--faint);line-height:1.8}.metric-notes strong{font-weight:500;color:var(--muted)}.evaluation-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;margin-top:40px}.evaluation-grid article{border-top:1px solid var(--line);padding-top:24px}.evaluation-grid h3{font-size:18px;font-weight:500;line-height:1.4;margin-top:14px}.evaluation-grid p{font-size:15px;color:var(--muted);line-height:1.8;margin-top:14px}.paper-cta{margin-top:70px;padding:32px 36px;border:1px solid #4b4131;border-radius:8px;background:#161512;display:flex;align-items:center;justify-content:space-between;gap:24px}.paper-cta h3{font:450 28px/1.3 var(--serif)}.paper-cta p{font-size:15px;color:var(--muted);margin-top:8px}.paper-cta .button{white-space:nowrap}.site-footer .wordmark{color:var(--ink)}.site-footer p{margin-top:10px;font-size:13px}.footer-links{display:flex;flex-direction:column;align-items:flex-end;gap:8px}.footer-links a:hover{color:var(--gold)}.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}.notice{padding:18px;border:1px solid var(--line)}.notice a{text-decoration:underline}button:disabled{opacity:.55;cursor:wait}
@media(min-width:1600px){.container{max-width:1280px}}
@media(max-width:1050px){.section-top{gap:32px}.dataset-card{padding:24px 20px}.dataset-card-top{flex-wrap:wrap}.dataset-description{min-height:140px}.representation-heading{align-items:flex-start}.representation-heading h3{font-size:26px}.evaluation-grid{grid-template-columns:1fr 1fr}.table-controls{align-items:flex-start;flex-direction:column;gap:12px}}
@media(max-width:760px){.site-header nav{gap:13px}.hero{padding-top:48px}.hero-reel{gap:8px;margin-top:36px}.reel-item{aspect-ratio:1/1.2}.reel-item figcaption{padding:36px 10px 10px}.reel-item figcaption span{display:none}.reel-item strong{font-size:13px;line-height:1.35}.reel-caption{font-size:12px;align-items:flex-start;gap:16px}.reel-caption>span{max-width:65%}.section-top{grid-template-columns:1fr;gap:24px;margin-bottom:32px}.section-top .section-intro{font-size:16px}.principles{grid-template-columns:1fr;gap:24px}.principles article{padding-top:20px;border-top:1px solid var(--line)}.scene-toolbar{padding:16px 14px 10px;flex-wrap:wrap;gap:10px}.scene-picker{min-width:100%;gap:10px}.scene-picker select{flex:1;min-width:0;width:100%}.scene-navigation{margin-left:auto}.scene-detail{padding:0 14px 14px;flex-wrap:wrap}.comparison-grid{grid-template-columns:1fr 1fr}.model-header{padding:10px 8px 2px;gap:0}.model-header select{font-size:13px;padding-right:4px;min-height:32px}.video-open{padding:4px;font-size:16px}.model-condition{padding:0 10px 10px;font-size:12px;min-height:46px;line-height:1.45}.playback-toolbar{padding:16px 14px 4px;gap:9px;flex-wrap:wrap}.playback-toolbar .button{min-width:106px;padding:8px 12px}.playback-toolbar input{width:calc(100% - 95px);flex-basis:calc(100% - 95px);order:3}.playback-toolbar output{order:4}.playback-status{padding:9px 14px 14px}.dataset-grid{grid-template-columns:1fr}.dataset-card{padding:26px}.dataset-card-top{flex-wrap:nowrap}.dataset-number{margin-top:20px}.dataset-description{min-height:0;margin-top:16px}.dataset-footnote{gap:8px 22px;font-size:12px}.representation-heading{flex-direction:column;margin-top:50px}.representation-grid{gap:12px}.representation-grid figcaption{padding-left:0}.representation-key{display:none}.representation-grid h4{font-size:15px}.representation-grid p{font-size:13px;line-height:1.7}.segmented button{padding:8px 12px;font-size:13px}.table-controls .segmented{width:100%}.table-controls .segmented button{white-space:normal;flex:1;font-size:13px}th,td{padding:14px 13px}th:first-child{min-width:193px;max-width:215px}tbody th small{white-space:normal;max-width:190px;line-height:1.5}table{font-size:13px}.table-note{flex-direction:column;gap:12px}.metric-notes{grid-template-columns:1fr;gap:16px}.evaluation-grid{gap:28px 20px}.evaluation-grid h3{font-size:17px}.evaluation-grid p{font-size:14px}.paper-cta{padding:26px;flex-direction:column;align-items:flex-start;gap:24px}.paper-cta h3{font-size:25px}.footer-links{align-items:flex-start;margin-top:12px}.section h2{font-size:36px}}
@media(max-width:430px){.wordmark{font-size:21px}.site-header nav{gap:12px;font-size:12px}.hero h1{font-size:64px}.hero-reel{grid-template-columns:1fr 1fr}.hero-reel .reel-item:nth-child(3){display:none}.reel-item{aspect-ratio:1.25}.representation-grid{grid-template-columns:1fr}.representation-grid figure{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:center}.representation-grid figcaption{padding-top:0}.representation-grid p{font-size:12px}.comparison-grid{grid-template-columns:1fr}.model-header{padding:12px 14px 3px}.model-header select{font-size:15px}.model-condition{font-size:13px;padding:0 16px 12px;min-height:0}.model-video-wrap{aspect-ratio:16/9}.evaluation-grid{grid-template-columns:1fr}.hero-subtitle{font-size:24px}.hero-actions .button{padding:10px 16px}}

/* Shared navigation: keep all three destinations visible on every page. */
.site-header{position:sticky;top:0;z-index:30;height:64px;background:var(--bg);gap:24px}
.site-header nav{align-items:center;gap:28px;font-size:.875rem;white-space:nowrap}
.site-header nav a{display:inline-flex;align-items:center;min-height:42px;padding:8px 0;border-bottom:2px solid transparent;color:var(--muted)}
.site-header nav a[aria-current="page"]{color:var(--gold);border-bottom-color:var(--gold);font-weight:600}
.site-header nav a:hover{color:var(--gold)}
.site-header nav a:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
@media(max-width:760px){.site-header{padding-left:20px;padding-right:20px;gap:16px}.site-header nav{gap:20px;font-size:.875rem}}
@media(max-width:620px){
  html{scroll-padding-top:124px}
  .site-header{height:auto;min-height:64px;flex-wrap:wrap;gap:4px 16px;padding-top:12px;padding-bottom:2px}
  .site-header nav{order:3;flex-basis:100%;justify-content:flex-start;gap:24px}
  .site-header nav a{min-height:40px;padding:7px 0}
}
/* One horizontal frame for Benchmark, Leaderboard and Gallery. */
:root{--page-max:1200px;--page-gutter:28px}
html{scrollbar-gutter:stable}
.page-shell{width:100%;max-width:var(--page-max);margin-inline:auto;padding-inline:var(--page-gutter)}
@media(max-width:760px){:root{--page-gutter:20px}}