:root{--ink:#142c42;--muted:#5c7181;--blue:#2566a4;--teal:#137f7b;--paper:#f8fbfd;--line:#d9e4ec;--wash:#edf4f8;--body:"Avenir Next",Arial,"PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:85px}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.7 var(--body);-webkit-font-smoothing:antialiased}a{color:var(--blue);text-underline-offset:4px}button,select{font:inherit}button{cursor:pointer}button,a,select{touch-action:manipulation}a:focus-visible,button:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--teal);outline-offset:4px}.wrap{max-width:1240px;padding:0 40px;margin:auto}.site-header{position:sticky;top:0;z-index:5;border-bottom:1px solid var(--line);background:var(--paper)}.header-row{height:64px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-weight:700;font-size:21px;color:var(--ink);text-decoration:none;letter-spacing:-.8px}.nav{display:flex;gap:26px;font-size:12px}.nav a{color:var(--muted);text-decoration:none}.nav a:hover{color:var(--blue)}.language{display:flex;padding:3px;background:var(--wash);border:1px solid var(--line);border-radius:6px;gap:2px}.language button{font-size:11px;border:0;background:none;color:var(--muted);padding:5px 10px;border-radius:4px}.language button[aria-pressed=true]{color:var(--ink);background:white}.hero{padding-top:40px;text-align:center}.kicker{font-size:10px;font-weight:600;letter-spacing:2px;color:var(--teal);margin:0 0 9px}.hero h1{font-weight:700;font-size:clamp(52px,6.5vw,76px);line-height:1.08;letter-spacing:-3.5px;margin:0}.hero h1 span{color:var(--blue)}.paper-title{font-size:clamp(20px,2.45vw,29px);font-weight:500;line-height:1.38;max-width:930px;margin:13px auto 22px;letter-spacing:-.45px;text-wrap:balance}.authors{list-style:none;padding:0;margin:0 auto 9px;max-width:1050px;display:flex;flex-wrap:wrap;justify-content:center;gap:1px 19px;font-size:13px;line-height:1.9}.authors li{white-space:nowrap;color:var(--blue)}sup{font-size:.65em;margin-left:2px}.affiliations{max-width:1030px;display:flex;justify-content:center;flex-wrap:wrap;gap:0 17px;margin:auto;font-size:11px;color:var(--muted)}.affiliations>span{white-space:nowrap}.contributions{margin:7px 0 16px;color:var(--muted);font-size:10px}.resources{display:flex;justify-content:center;gap:9px;flex-wrap:wrap}.resource{white-space:nowrap;display:inline-flex;gap:7px;align-items:center;border:1px solid var(--line);border-radius:6px;padding:7px 14px;font-size:12px;line-height:1.5;color:var(--ink);text-decoration:none;background:white}.resource svg{width:17px;height:17px}.resource.primary{background:var(--ink);border-color:var(--ink);color:white}.resource:hover{border-color:var(--blue)}.resource.unavailable{color:var(--muted);background:transparent}.resource small{font-size:9px}.showcase{width:min(100%,960px,calc((100svh - 150px)*16/9));margin:32px auto 0;border-radius:10px;overflow:hidden;background:#102333;color:white;text-align:left;border:1px solid #223c50}.showcase-head{display:flex;justify-content:space-between;gap:12px;padding:11px 20px;font-size:9px;color:#c5d9e8;letter-spacing:.6px}.showcase-labels{display:grid;grid-template-columns:1fr 1fr;background:#193246;border-block:1px solid #294458;font-size:12px}.showcase-labels span{padding:9px 20px}.showcase-labels span+span{border-left:1px solid #365166;color:#a3e3da}.showcase video{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:contain;background:black}.showcase-bottom{display:flex;gap:20px;align-items:center;justify-content:space-between;padding:12px 20px}.showcase-bottom p{font-size:11px;color:#b9cad6;margin:0;max-width:880px}.showcase-bottom button{border:1px solid #5d778a;border-radius:5px;background:#213c50;color:#edf6fc;padding:6px 11px;font-size:11px;white-space:nowrap}.showcase-status{font-size:11px;color:#aec3d3;padding:0 20px 8px;margin:0}.video-caption{margin:10px auto 0;max-width:920px;font-size:11px;color:var(--muted)}.section{padding:66px 0;border-bottom:1px solid var(--line)}.section-label{font-size:10px;font-weight:600;letter-spacing:1.4px;color:var(--teal);margin:0 0 9px}.section h2{font-size:32px;font-weight:600;line-height:1.25;letter-spacing:-1px;margin:0}.section-top{display:flex;justify-content:space-between;align-items:end;gap:50px;margin-bottom:26px}.section-top>p{font-size:13px;color:var(--muted);max-width:530px;margin:0}.framework{margin:0}.framework img{display:block;width:100%;height:auto;border:1px solid var(--line);background:white}.framework figcaption{font-size:11px;color:var(--muted);margin-top:10px}.experiment{background:white;border:1px solid var(--line);border-radius:8px;padding:22px}.experiment-bar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px}.experiment-bar label{font-size:11px;color:var(--muted);display:flex;gap:10px;align-items:center}.experiment-bar strong{font-size:13px;font-weight:500}.experiment-bar select{font-size:12px;color:var(--ink);background:var(--wash);border:1px solid var(--line);border-radius:5px;padding:8px;max-width:200px}.carousel-navigation{display:flex;gap:16px;align-items:center}.carousel-navigation button{border:1px solid var(--line);background:white;color:var(--ink);border-radius:50%;width:35px;height:35px}.example-films{display:grid;grid-template-columns:1fr 1fr;gap:20px}.film{margin:0;min-width:0}.film figcaption{font-size:12px;margin-bottom:9px}.film:last-child figcaption{color:var(--teal)}.placeholder{aspect-ratio:16/9;border:1px dashed #c4d4de;background:#f4f7f9;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;color:var(--muted);font-size:13px}.frame-number{font-size:33px;font-weight:300;color:#8ba2b3}.placeholder small{font-size:10px}.view-controls{display:flex;align-items:center;justify-content:center;gap:8px;margin:22px 0 10px;font-size:11px}.view-controls>span{margin-right:12px;color:var(--muted)}.view-controls button{background:white;color:var(--muted);border:1px solid var(--line);border-radius:5px;padding:5px 15px}.view-controls button[aria-pressed=true]{background:var(--ink);color:white;border-color:var(--ink)}.hint{font-size:11px;color:var(--muted);margin:14px 0 0}.experiment>.hint{text-align:center}.table-scroll{width:100%;overflow-x:auto;border-top:2px solid var(--ink)}table{border-collapse:collapse;width:100%;font-size:12px;background:white}th,td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left}thead{background:var(--wash)}th{font-weight:600}#benchmark-table{min-width:950px;font-variant-numeric:tabular-nums}#benchmark-table td,#benchmark-table thead th{text-align:center}#benchmark-table thead th:first-child{text-align:left}.table-group th{text-align:center;background:#edf4f8;font-size:11px;letter-spacing:.3px;padding-block:9px}#benchmark-table tbody td{color:var(--ink)}caption{caption-side:bottom;text-align:left;padding-top:10px;color:var(--muted);font-size:10px}#release-table{min-width:850px}#release-table th[scope=row]{white-space:nowrap}#release-table td{color:var(--muted)}#release-table td:nth-child(3){color:var(--teal);white-space:nowrap}.citation-box{min-height:96px;background:var(--wash);border:1px solid var(--line);border-radius:6px;padding:20px;overflow:auto;margin:0}.release-note{font-size:11px;color:var(--muted);margin:18px 0 10px}.text-link{font-size:12px}.site-footer{padding:28px 0 34px}.footer-row{display:flex;justify-content:space-between;gap:25px;font-size:11px;color:var(--muted)}
@media(max-width:800px){.wrap{padding:0 24px}.section-top{gap:30px}.authors{font-size:12px;gap:1px 14px}.affiliations{font-size:10px}.experiment-bar{flex-wrap:wrap}.section h2{font-size:29px}.showcase-bottom{align-items:start}}
@media(max-width:540px){.wrap{padding:0 18px}.nav{display:none}.header-row{height:58px}.hero{padding-top:26px}.kicker{font-size:8px;letter-spacing:1px}.hero h1{font-size:53px;letter-spacing:-2.5px}.paper-title{font-size:20px;line-height:1.5;letter-spacing:0}.authors{font-size:10px;gap:1px 11px}.affiliations{font-size:9px;gap:0 10px}.affiliations>span{white-space:normal}.contributions{font-size:9px;max-width:310px;margin:9px auto 15px}.resource{font-size:10px;padding:7px 10px}.showcase{margin-top:22px}.showcase-head{font-size:7px;letter-spacing:0;padding:9px}.showcase-labels{font-size:9px}.showcase-labels span{padding:7px 9px}.showcase-bottom{padding:10px;gap:10px;flex-direction:column}.showcase-bottom p{font-size:9px}.showcase-status{padding:0 10px 6px}.video-caption{font-size:10px}.section{padding:45px 0}.section-top{display:block}.section-top>p{font-size:12px;margin-top:14px}.section h2{font-size:27px}.experiment{padding:14px}.experiment-bar strong{font-size:11px}.carousel-navigation{gap:9px}.example-films{gap:10px}.film figcaption{font-size:10px;min-height:34px}.placeholder{aspect-ratio:4/3;font-size:10px}.frame-number{font-size:24px}.view-controls{gap:5px;flex-wrap:wrap}.view-controls>span{margin-right:5px}.view-controls button{padding:5px 10px}.footer-row{font-size:10px;gap:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}

.video-slot{background:#102333;border:1px solid #294458}.video-placeholder{aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:12px;color:#adbfcc}.video-placeholder svg{width:62px;height:62px;margin-bottom:7px;color:#7797aa}.video-placeholder strong{font-size:23px;font-weight:500;color:#e0eaf1;letter-spacing:.3px}.video-placeholder span{font-size:11px;letter-spacing:1.5px;text-transform:uppercase}.video-slot figcaption{padding:12px 20px;border-top:1px solid #294458;color:#adbfcc;font-size:11px;text-align:center}@media(max-width:540px){.video-placeholder{gap:7px}.video-placeholder svg{width:40px;height:40px;margin-bottom:2px}.video-placeholder strong{font-size:17px}.video-placeholder span,.video-slot figcaption{font-size:9px}}

/* Dataset cases: real scene footage, grouped by application. */
.case-category-nav{display:flex;gap:8px;flex-wrap:wrap;position:sticky;top:64px;z-index:3;padding:14px 0;background:var(--paper);border-block:1px solid var(--line);margin-bottom:32px}.case-category-nav a{display:inline-flex;align-items:center;gap:16px;padding:8px 14px;background:white;border:1px solid var(--line);border-radius:5px;text-decoration:none;font-size:12px;color:var(--ink)}.case-category-nav a:hover{border-color:var(--blue);color:var(--blue)}.case-category-nav a span{font-size:10px;color:var(--muted);font-variant-numeric:tabular-nums}.case-category{scroll-margin-top:145px;margin:0 0 46px}.case-category:last-child{margin-bottom:0}.case-category-heading{display:flex;align-items:baseline;justify-content:space-between;gap:24px;margin-bottom:16px}.case-category-heading h3{font-size:22px;letter-spacing:-.4px;line-height:1.25;margin:0;font-weight:600}.case-category-heading p{font-size:12px;color:var(--muted);margin:0;text-align:right;max-width:550px}.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.case-card{min-width:0;background:white;border:1px solid var(--line);border-radius:7px;overflow:hidden;display:flex;flex-direction:column}.case-card>video{display:block;aspect-ratio:16/9;width:100%;background:#102333;object-fit:contain}.case-card-body{padding:17px;display:flex;flex-direction:column;flex:1}.case-card h4{font-size:15px;font-weight:600;line-height:1.4;margin:0 0 8px;letter-spacing:-.15px}.case-description{font-size:11px;line-height:1.7;color:var(--muted);margin:0 0 14px}.case-actions{display:flex;align-items:center;flex-wrap:wrap;gap:8px 15px;margin-top:auto;padding-top:9px;border-top:1px solid #e7eef3}.case-actions button{font-size:10px;font-weight:500;line-height:1.6;color:var(--blue);border:0;padding:3px 0;background:transparent;text-align:left}.case-actions button:hover{text-decoration:underline}.case-input{display:flex;align-items:center;gap:12px;margin:0 0 15px;color:var(--muted);font-size:10px}.case-input img{display:block;width:96px;height:60px;object-fit:contain;border:1px solid var(--line);background:var(--wash)}.case-more{margin-top:15px}.case-more>summary{font-size:12px;color:var(--blue);cursor:pointer;padding:10px 0;list-style-position:inside}.case-more>summary span{font-size:10px;color:var(--muted);margin-left:8px}.case-more[open]>.case-grid{margin-top:10px}#case-dialog{border:1px solid var(--line);border-radius:10px;padding:28px;color:var(--ink);background:var(--paper);width:min(1160px,94vw);max-height:90vh;overflow-y:auto}#case-dialog::backdrop{background:#102333ce}.case-dialog-close{float:right;display:flex;gap:15px;align-items:center;border:1px solid var(--line);border-radius:5px;background:white;color:var(--ink);padding:6px 12px;font-size:12px}.case-dialog-heading{padding-right:110px;margin-bottom:22px}.case-dialog-heading h3{font-size:25px;line-height:1.3;letter-spacing:-.5px;margin:8px 0}.case-dialog-heading>p:last-child{font-size:13px;color:var(--muted);margin:8px 0}.case-view-picker{display:flex;align-items:center;gap:12px;font-size:12px;margin-bottom:14px}.case-view-picker select{max-width:100%;min-width:220px;font:inherit;border:1px solid var(--line);background:white;color:var(--ink);padding:8px;border-radius:5px}#case-selected-view video,.case-comparison-grid video{display:block;width:100%;max-height:55vh;aspect-ratio:16/9;object-fit:contain;background:#102333}.case-view-note{font-size:11px;line-height:1.7;color:var(--muted);margin:12px 0}.case-input-detail,.case-prompt-detail{border-top:1px solid var(--line);padding-top:13px;margin-top:15px;font-size:12px}.case-input-detail summary,.case-prompt-detail summary{cursor:pointer}.case-input-detail img{max-width:100%;max-height:240px;object-fit:contain;display:block;margin-top:12px}.case-input-detail p{font-size:11px;color:var(--muted)}.case-prompt-detail pre{white-space:pre-wrap;overflow-wrap:anywhere;font:11px/1.7 var(--body);max-height:240px;overflow:auto;background:var(--wash);padding:15px;border-radius:5px}.case-comparison-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.case-comparison-grid figure{margin:0;min-width:0}.case-comparison-grid figcaption{font-size:12px;font-weight:600;margin-bottom:8px}@media(max-width:900px){.case-category-heading{display:block}.case-category-heading p{text-align:left;margin-top:8px}.case-grid{gap:12px}.case-card-body{padding:13px}.case-card h4{font-size:14px}}@media(max-width:650px){.case-grid{grid-template-columns:1fr}.case-category-nav{gap:7px;top:58px;margin-bottom:25px}.case-category-nav a{font-size:11px;padding:7px 10px;gap:10px}.case-category{scroll-margin-top:165px;margin-bottom:35px}.case-card h4{font-size:17px}.case-description{font-size:12px}.case-actions button{font-size:12px;padding-block:6px}.case-card-body{padding:17px}.case-category-heading h3{font-size:22px}.case-input img{width:112px;height:72px}.case-input{font-size:11px}#case-dialog{width:96vw;padding:17px;max-height:94vh}.case-dialog-heading{padding-right:0;padding-top:37px}.case-dialog-heading h3{font-size:23px}.case-view-picker{align-items:start;flex-direction:column;gap:5px}.case-view-picker select{width:100%;min-width:0}.case-comparison-grid{grid-template-columns:1fr}.case-view-note{font-size:10px}}@media(prefers-reduced-motion:reduce){.case-category{scroll-behavior:auto}}

/* Four independent carousels keep every application in view. */
.case-gallery-carousels{display:grid;grid-template-columns:1fr;gap:28px}.case-gallery-carousels .case-category{margin:0;min-width:0;background:white;border:1px solid var(--line);border-radius:8px;overflow:hidden;display:flex;flex-direction:column;scroll-margin-top:90px}.case-carousel-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:17px 18px;border-bottom:1px solid var(--line)}.case-carousel-heading h3{font-size:19px;line-height:1.3;letter-spacing:-.35px;font-weight:600;margin:0}.case-carousel-controls{display:flex;align-items:center;gap:10px;flex-shrink:0}.case-carousel-controls button{display:flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:50%;width:29px;height:29px;padding:0;background:white;color:var(--blue);font-size:16px;line-height:1}.case-carousel-controls button:hover{border-color:var(--blue);background:var(--wash)}.case-carousel-controls span{font-size:10px;color:var(--muted);font-variant-numeric:tabular-nums;min-width:29px;text-align:center}.case-carousel-stage{display:flex;flex:1;min-width:0}.case-carousel-stage .case-card{border:0;border-radius:0;flex:1}.case-card[hidden]{display:none}.case-gallery-carousels .case-card-body{padding:18px}.case-gallery-carousels .case-card h4{font-size:17px}.case-gallery-carousels .case-description{font-size:12px;line-height:1.65}.case-gallery-carousels .case-actions button{font-size:11px;padding-block:5px}.case-gallery-carousels .case-input img{width:102px;height:64px}@media(max-width:800px){.case-gallery-carousels{grid-template-columns:1fr;gap:22px}.case-carousel-heading{padding:14px 16px}.case-carousel-heading h3{font-size:20px}.case-carousel-controls button{width:33px;height:33px}.case-carousel-controls span{font-size:11px}.case-gallery-carousels .case-card-body{padding:16px}.case-gallery-carousels .case-actions button{font-size:12px}.case-gallery-carousels .case-input img{width:112px;height:72px}}
.case-gallery-carousels{align-items:start}.case-paired-media{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;padding:12px 12px 0;background:var(--wash)}.case-paired-media figure{margin:0;min-width:0}.case-paired-media figcaption{font-size:11px;font-weight:600;margin-bottom:7px;color:var(--muted)}.case-paired-media video,.case-paired-media img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:contain;background:#102333}.case-paired-media img{background:white}.case-paired-media a{display:block}@media(max-width:480px){.case-paired-media{gap:6px;padding:10px 8px 0}.case-paired-media figcaption{font-size:10px}}

/* Keep the case context and controls above a bounded, uncropped player. */
.case-card-heading{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px 24px;padding:16px 18px;background:var(--wash);border-bottom:1px solid var(--line)}
.case-caption{flex:1 1 380px;min-width:220px}.case-gallery-carousels .case-card h4{font-size:20px;margin-bottom:5px}.case-gallery-carousels .case-description{font-size:12px;line-height:1.65;margin:0}
.case-tools{display:flex;align-items:center;justify-content:flex-end;flex-wrap:wrap;gap:9px 12px;min-width:0}.case-tools label{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}.case-tools select{max-width:180px;min-width:130px;padding:6px 26px 6px 9px;border:1px solid var(--line);border-radius:4px;color:var(--ink);background:white;font:inherit}.case-tools select:disabled{opacity:.7}
.case-tools button,.case-pair-controls button{border:1px solid var(--line);border-radius:4px;background:white;color:var(--blue);padding:6px 11px;font-size:12px;white-space:nowrap}.case-tools button:hover,.case-pair-controls button:hover{border-color:var(--blue)}.case-tools button:disabled,.case-pair-controls button:disabled{opacity:.6;cursor:wait}
.case-single-media{display:flex;justify-content:center;padding:14px 16px 16px}.case-single-media video{display:block;width:100%;max-width:720px;height:auto;max-height:min(42vh,405px);aspect-ratio:16/9;object-fit:contain;background:#102333}
.case-paired-media{width:100%;max-width:1000px;margin:0 auto;padding:14px 16px 16px;background:white;gap:16px}.case-paired-media video,.case-paired-media img{max-height:min(38vh,300px);object-fit:contain}
.case-pair-controls{display:flex;align-items:center;gap:12px;margin-bottom:12px}.case-pair-status{font-size:11px;line-height:1.5;color:var(--muted)}.case-pair-status:empty{display:none}
.case-dialog-heading{margin-bottom:12px}.case-dialog-heading h3{font-size:26px}.case-comparison-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.case-comparison-grid video{display:block;width:100%;height:auto;max-height:min(35vh,280px);aspect-ratio:16/9;object-fit:contain}
@media(max-width:650px){.case-card-heading{padding:13px 14px;gap:12px}.case-caption{flex-basis:100%;min-width:0}.case-tools{justify-content:flex-start}.case-gallery-carousels .case-card h4{font-size:18px}.case-paired-media{gap:8px;padding:10px 10px 12px}.case-comparison-grid{gap:8px}.case-comparison-grid figcaption{font-size:11px}.case-dialog-heading h3{font-size:22px}}

.community-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;max-width:760px;margin:0 auto}.community-card{padding:24px;border:1px solid var(--line);border-radius:10px;background:white;text-align:center}.community-card h3{margin:0 0 18px;font-size:20px;font-weight:600}.community-card img{display:block;width:min(100%,260px);height:auto;margin:auto;background:white}.community-card p{margin:16px 0 0;color:var(--muted);font-size:12px;line-height:1.6}@media(max-width:600px){.community-grid{grid-template-columns:1fr;max-width:360px}}