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.stats-strip{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding-block:26px;gap:16px}.stats-strip>div{display:flex;align-items:baseline;justify-content:center;gap:11px;border-right:1px solid var(--line)}.stats-strip>div:last-child{border-right:0}.stats-strip strong{font-family:var(--display);font-size:28px;letter-spacing:-1px}.stats-strip strong small{font-size:14px;letter-spacing:0}.stats-strip span{font-size:12px;line-height:1.4;color:var(--muted);max-width:97px}.benchmark,.results-section{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center}.section-intro>p:not(.eyebrow){color:var(--muted);margin-top:20px;max-width:490px}.domain-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:24px}.domain-tags span{font-size:11px;background:#f4f7fc;border:1px solid #e6edf6;border-radius:5px;padding:5px 8px;color:var(--muted)}.evaluation-list article{display:flex;align-items:center;gap:23px;border-bottom:1px solid var(--line);padding:21px 0}.evaluation-list article:last-child{border-bottom:0}.evaluation-list p{font-size:14px;color:var(--muted);margin-top:5px;line-height:1.5}.evaluation-symbol{display:flex;justify-content:center;align-items:center;flex:0 0 50px;height:50px;border:1px solid #dce7f8;background:#f5f8fe;border-radius:10px;font-family:var(--display);font-size:27px;color:var(--blue)}.interval-symbol{font-size:19px}
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.has-motion .reveal{opacity:0;transform:translateY(15px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}.has-motion .reveal.visible{opacity:1;transform:none}html.language-zh h1{font-family:var(--body);font-weight:600;letter-spacing:-1.8px;font-size:clamp(38px,4vw,54px)}html.language-zh h2{font-family:var(--body);font-weight:600;letter-spacing:-.6px}html.language-zh .paper-title{font-size:21px}
@media(min-width:1500px){.hero{gap:95px}}
@media(max-width:1100px){.shell{width:calc(100% - 64px)}.hero{gap:44px}.hero h1{font-size:45px}.paper-title{font-size:20px}.hero-description{font-size:16px}.stats-strip>div{flex-direction:column;align-items:center;gap:4px}.stats-strip span{max-width:none}.benchmark,.results-section{gap:55px}.step{padding:16px 11px;gap:8px}.step strong{font-size:13px}.step small{font-size:10px}.demo-card{padding:22px 21px 17px}.hero-actions{gap:8px}.button{font-size:13px;padding:11px 12px;gap:9px}}
@media(max-width:820px){.shell{width:calc(100% - 48px)}.site-header{height:72px}.nav-links{gap:17px;font-size:12px}.hero{grid-template-columns:1fr;gap:43px;padding-top:44px;padding-bottom:52px}.hero-copy{max-width:660px}.hero h1{font-size:clamp(43px,7.4vw,61px)}.hero-description{max-width:600px}.paper-title{max-width:650px}.demo-wrap{max-width:620px;margin-inline:auto;width:100%;padding-inline:10px}.demo-wrap::before{inset:0 -5px}.demo-card{padding:25px 28px 18px}.query{min-height:75px}.demo-heading .tiny-label{font-size:11px}.scope-timeline{margin-bottom:20px}.stats-strip{padding-block:22px}.stats-strip strong{font-size:25px}.stats-strip span{font-size:11px}.section{padding-block:66px}.benchmark,.results-section{grid-template-columns:1fr;gap:30px}.section-intro>p:not(.eyebrow){max-width:680px}.evaluation-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.evaluation-list article{display:block;border:0;padding:5px 0}.evaluation-symbol{width:40px;height:40px;margin-bottom:14px;font-size:23px}.interval-symbol{font-size:16px}.evaluation-list h3{font-size:18px}.evaluation-list p{font-size:13px}.steps{grid-template-columns:repeat(2,1fr)}.step{padding:15px}.step strong{font-size:14px}.step small{font-size:11px}.step-detail{min-height:68px;font-size:13px}.method-figure{padding:15px 15px 11px}.result-card{max-width:640px;width:100%}.result-heading strong{font-size:45px}.resource-grid{gap:11px}.resource-card{padding:20px 16px}.resource-card h3{font-size:17px}.resource-card p{font-size:13px}.resource-type{font-size:10px}.footer{flex-wrap:wrap}.footer>span:last-child{margin-left:auto}.credits-section{padding-block:45px}}
@media(max-width:540px){.shell{width:calc(100% - 36px)}.nav{gap:12px}.nav-links{display:none}.wordmark{font-size:25px}.wordmark svg{width:30px}.hero{padding-top:36px;gap:35px;padding-bottom:38px}.venue{font-size:11px;padding:6px 8px;gap:7px;margin-bottom:24px}.venue-track{font-size:9px;padding-left:7px}.hero h1{font-size:clamp(36px,8.7vw,46px);letter-spacing:-1.8px;margin-bottom:20px}.paper-title{font-size:19px;line-height:1.4}.hero-description{font-size:15px}.hero-actions{margin-top:23px}.button{font-size:12px;padding:11px 13px;gap:13px}.hero-credits{font-size:12px;margin-top:22px}.hero-credits p{font-size:10px}.credit-link{font-size:11px;margin-left:7px}.demo-wrap{padding-inline:0}.demo-wrap::before{inset:0 -9px;border-radius:20px;transform:rotate(1deg)}.demo-card{padding:19px 17px 15px;border-radius:12px}.demo-heading{gap:7px;margin-bottom:15px}.demo-heading .tiny-label{font-size:9px;letter-spacing:.5px}.paper-example{font-size:9px;padding:3px 5px}.example-controls{gap:5px;margin-bottom:14px}.example-controls button{font-size:10px;padding:6px 8px}.query{font-size:15px;padding:13px;margin-bottom:19px;min-height:94px}.timeline-heading{font-size:10px}.timeline-heading>span:last-child{font-size:9px}.interval-buttons{gap:4px}.interval-buttons button{font-size:8.5px;padding:7px 1px}.answer-row{padding-top:13px;margin-top:16px}.answer-row strong{font-size:35px}.answer-row p span{font-size:11px}.replay{font-size:10px}.demo-note{font-size:9px;line-height:1.6}.orbit-dot{display:none}.stats-strip{grid-template-columns:repeat(2,1fr);row-gap:20px;padding-block:23px}.stats-strip>div:nth-child(2){border-right:0}.stats-strip strong{font-size:27px}.stats-strip span{font-size:11px}.section{padding-block:50px}h2{font-size:28px;letter-spacing:-.85px}.eyebrow{font-size:10px;margin-bottom:13px}.section-intro>p:not(.eyebrow){font-size:15px;margin-top:17px}.evaluation-list{display:block}.evaluation-list article{display:flex;gap:17px;border-bottom:1px solid var(--line);padding:16px 0}.evaluation-list article:last-child{padding-bottom:0}.evaluation-symbol{flex:0 0 42px;margin:0}.evaluation-list p{font-size:13px}.section-heading{align-items:start;gap:14px;margin-bottom:24px}.method-badge{font-size:10px;padding:6px 7px;margin-top:30px}.method-section h2{max-width:245px}.step{gap:9px;padding:13px 10px}.step strong{font-size:12px}.step small{font-size:10px}.step-number{flex-basis:23px;height:23px;font-size:10px}.steps{gap:8px}.step-detail{font-size:12px;min-height:84px;margin-block:17px 22px}.method-figure{padding:10px 10px 11px}.method-figure figcaption{font-size:9px;line-height:1.5;gap:8px;margin-top:10px}.method-figure figcaption>span{max-width:210px}.result-card{padding:19px}.model-controls button{font-size:10px;padding:7px 3px}.result-heading strong{font-size:44px}.result-heading p span{font-size:10px}.bar-label{font-size:11px}.bar-label>strong{font-size:11px}.chart-caption{font-size:9px}.resource-grid{grid-template-columns:1fr;gap:10px}.resource-card{padding:18px 20px}.resource-card h3{margin-top:15px;font-size:19px}.resource-card p{font-size:13px;margin-top:7px}.resource-type{font-size:11px}.citation summary{padding:14px 18px;font-size:13px}.citation-content{padding:17px}.citation pre{font-size:10px}.credits-section h2{font-size:19px}.authors{gap:9px 13px;font-size:12px}.affiliations{display:block;font-size:11px}.affiliations>span{display:block;margin-top:7px}.acknowledgments{font-size:11px}.footer{gap:14px;padding-block:22px}.footer>div{width:100%;gap:19px}.footer>span:last-child{margin-left:0}.footer-home{font-size:12px}html.language-zh h1{font-size:clamp(35px,8.2vw,44px)}html.language-zh .paper-title{font-size:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.has-motion .reveal{opacity:1;transform:none}}
@media print{.site-header,.language,.replay,.orbit-dot{display:none}body{font-size:12px}.shell{width:100%}.hero{padding-top:20px}.section{padding-block:30px}.reveal{opacity:1!important;transform:none!important}.method-figure,.result-card,.demo-card{break-inside:avoid}.acknowledgments{display:block}}

[hidden]{display:none!important}
/* Real, timestamp-aligned video examples. */
.hero-media{position:relative;margin-top:12px;background:#10283e;border-radius:9px;overflow:hidden}.hero-media video{display:block;width:100%;height:202px;object-fit:contain;background:#10283e}.media-source-badge{position:absolute;top:9px;right:9px;font-family:var(--mono);font-size:8px;color:white;background:#10283ecf;border-radius:4px;padding:4px 6px;pointer-events:none}.hero-condition-tags{display:flex;flex-wrap:wrap;gap:5px;margin-top:11px}.condition-tag{display:inline-flex;align-items:center;border:1px solid;border-radius:5px;font-size:10px;font-weight:500;line-height:1.2;padding:5px 7px}.condition-temporal{color:#2456b9;background:#eef3ff;border-color:#d4e0fb}.condition-spatial{color:#167065;background:#eff8f5;border-color:#d1e7de}.condition-negative{color:#6a5665;background:#f6f1f5;border-color:#e7dbe3}.media-status{font-size:10px;color:var(--muted);line-height:1.5;min-height:15px;margin-block:5px 9px}.demo-card .query{font-size:15px;min-height:0;margin-bottom:12px}.demo-card .scope-timeline,.demo-card .evidence-timeline{display:none}.demo-card .zoom-heading{margin-top:13px}.demo-card .interval-buttons{margin-top:9px}.demo-card .answer-row{margin-top:14px}.demo-card .demo-note{margin-top:9px}.examples-section{padding-top:68px}.examples-section .section-heading{align-items:center;margin-bottom:17px}.examples-hf-link{font-size:12px;color:var(--blue);white-space:nowrap}.examples-intro{font-size:15px;color:var(--muted);max-width:820px;line-height:1.65}.condition-filters{display:flex;flex-wrap:wrap;gap:6px;margin-block:24px 27px}.condition-filters button{font-size:11px;background:white;border:1px solid var(--line);border-radius:6px;padding:7px 10px;transition:background .2s,border-color .2s}.condition-filters button[aria-pressed=true]{background:var(--ink);color:white;border-color:var(--ink)}.example-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:23px}.example-card{border:1px solid var(--line);border-radius:13px;overflow:hidden;background:white;box-shadow:0 5px 17px #1b355709;min-width:0}.example-card-heading{display:flex;align-items:center;justify-content:space-between;padding:17px 20px;gap:12px}.example-card-heading h3{font-size:17px;font-weight:600;line-height:1.35}.example-paper-ref{font-family:var(--mono);font-size:9px;color:var(--muted);white-space:nowrap}.example-video-wrap{position:relative;background:#10283e}.example-video-wrap video{display:block;width:100%;aspect-ratio:16/9;object-fit:contain;background:#10283e}.example-count{position:absolute;top:11px;right:11px;border:1px solid #e2eaf7;background:#fffffff0;border-radius:7px;padding:6px 10px;display:flex;align-items:baseline;gap:5px;pointer-events:none;backdrop-filter:blur(5px)}.example-count strong{font-family:var(--display);font-size:21px;line-height:1.1;color:var(--blue)}.example-count span{font-size:9px;color:var(--muted)}.example-card-body{padding:18px 20px 13px}.condition-tags{display:flex;flex-wrap:wrap;gap:5px}.example-card-query{font-size:15px;line-height:1.55;margin-top:13px;min-height:94px;color:var(--ink);font-weight:500}.card-moments{display:flex;gap:6px;flex-wrap:wrap;margin-top:13px;min-height:28px}.moment-chip{font-size:10px;font-family:var(--mono);border:1px solid #dce6f6;background:#f8faff;padding:6px 7px;border-radius:5px;color:#496586}.moment-chip[aria-pressed=true]{background:var(--pale);border-color:#96b4f4;color:#2356c7}.no-moment{font-family:var(--mono);font-size:11px;color:#6b5665;background:#f7f2f6;border:1px solid #eadfe7;padding:6px 9px;border-radius:5px}.example-note{font-size:10px;color:var(--muted);line-height:1.6;margin-top:11px;min-height:32px}.example-provenance{display:flex;justify-content:space-between;align-items:center;gap:9px;border-top:1px solid #e9eef7;margin-top:12px;padding-top:11px}.example-provenance code{font-family:var(--mono);font-size:9px;color:#7a8ca4;overflow-wrap:anywhere}.example-provenance a{font-size:10px;color:var(--blue);white-space:nowrap}.card-media-status{font-size:10px;color:var(--teal);min-height:15px;margin-top:6px}.example-gallery-note{font-size:11px;color:var(--muted);line-height:1.65;margin-top:19px}.benchmark{row-gap:23px}.dataset-details{grid-column:1/-1;border:1px solid var(--line);border-radius:9px;padding:14px 18px;font-size:13px;background:#fbfcfe}.dataset-details summary,.latency-details summary{cursor:pointer;font-weight:500}.quality-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;padding-block:21px 15px}.quality-facts>span{display:flex;align-items:baseline;gap:8px;font-size:11px;color:var(--muted)}.quality-facts strong{font-family:var(--display);font-size:23px;color:var(--ink)}.evaluation-update{grid-column:1/-1;border-top:1px solid var(--line);padding-top:29px;margin-top:10px;min-width:0}.results-section{row-gap:29px}.evaluation-update-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.evaluation-update-heading h3{font-size:20px}.evaluation-n{font-family:var(--mono);font-size:11px;color:var(--teal);background:#f0f8f6;border:1px solid #d5e7e1;padding:5px 9px;border-radius:5px;white-space:nowrap}.evaluation-note{font-size:12px;color:var(--muted);line-height:1.6;margin-top:14px}.table-scroll{max-width:100%;overflow-x:auto;margin-top:17px;-webkit-overflow-scrolling:touch}.data-table{width:100%;border-collapse:collapse;text-align:left;font-size:12px;min-width:470px}.data-table th{font-size:11px;font-weight:500;color:#6a7d97;background:#f7f9fd;padding:11px 14px;border-bottom:1px solid var(--line);white-space:nowrap}.data-table td{padding:11px 14px;border-bottom:1px solid #e9eef5}.data-table .ours-row td{background:#edf3ff;color:#2353b9;font-weight:500}.latency-details{font-size:12px;margin-top:20px;border:1px solid var(--line);padding:13px 16px;border-radius:7px;background:#fbfcfe}.dataset-details .evaluation-note{margin-top:13px}.example-card[hidden]{display:none}.media-unavailable{outline:2px solid #cfddeb}
@media(max-width:1100px){.nav-links{gap:20px}.example-card-heading{padding:15px}.example-card-heading h3{font-size:15px}.example-paper-ref{font-size:8px}.example-card-body{padding:15px}.example-card-query{font-size:14px;min-height:108px}.hero-media video{height:185px}.quality-facts>span{display:block}.quality-facts strong{display:block;margin-bottom:4px}.example-provenance{align-items:flex-start}.example-provenance code{font-size:8px}.hero-condition-tags .condition-tag{font-size:9px}}
@media(max-width:820px){.nav-links{gap:14px;font-size:11px}.examples-section .section-heading{align-items:start;display:block}.examples-hf-link{display:inline-block;margin-top:15px}.example-grid{gap:15px}.example-card-heading{display:block;min-height:77px}.example-paper-ref{display:inline-block;margin-top:5px}.example-card-query{min-height:135px}.example-count strong{font-size:18px}.example-count span{font-size:8px}.hero-media video{height:235px}.demo-card .query{font-size:16px}.quality-facts{padding-top:16px}.example-gallery-note{font-size:10px}}
@media(max-width:600px){.example-grid{grid-template-columns:1fr}.example-card-heading{display:flex;min-height:0;padding:15px 16px}.example-card-heading h3{font-size:16px}.example-paper-ref{font-size:8px;margin-top:0}.example-card-body{padding:16px}.example-card-query{min-height:0;font-size:14px;line-height:1.65}.example-count strong{font-size:21px}.example-count span{font-size:9px}.condition-filters{gap:5px;margin-block:20px}.condition-filters button{font-size:10px;padding:7px 9px}.condition-tag{font-size:10px}.example-provenance code{font-size:9px}.example-note{min-height:0;font-size:10px}.moment-chip{padding:9px 10px;font-size:10px}.examples-intro{font-size:14px}.examples-section{padding-top:45px}.hero-media video{height:auto;aspect-ratio:16/9}.hero-condition-tags .condition-tag{font-size:10px}.demo-card .query{font-size:15px}.media-status{font-size:9px}.quality-facts{gap:8px}.quality-facts strong{font-size:21px}.quality-facts>span{font-size:10px}.dataset-details{padding:13px 14px}.evaluation-update-heading h3{font-size:17px}.evaluation-note{font-size:11px}.data-table{font-size:11px}.data-table td,.data-table th{padding:10px 11px}.evaluation-n{font-size:10px;padding:4px 7px}.latency-details{padding:12px}.example-gallery-note{margin-top:15px}}

.gated-access-note{font-size:.78rem;line-height:1.6;color:var(--muted);margin:10px 0 16px}.gated-access-note a{color:var(--blue);white-space:nowrap}.hero .gated-access-note{font-size:.65rem;margin:6px 0 10px}