:root{color-scheme:light;--ink:#172335;--muted:#5c6776;--blue:#2167c9;--line:#e1e6ed;--soft:#f7f9fc;--mono:ui-monospace,SFMono-Regular,Consolas,monospace}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:140px}body{margin:0;color:var(--ink);background:#fff;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}a:hover{color:var(--blue)}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,video:focus-visible{outline:3px solid #4287df;outline-offset:5px}img{display:block;width:100%;height:auto}.wrap{width:min(1160px,calc(100% - 64px));margin:auto}.site-header{border-bottom:1px solid var(--line);background:#fff}.nav{height:72px;display:flex;align-items:center;justify-content:space-between}.wordmark{font-size:22px;font-weight:750;letter-spacing:-.8px;display:flex;gap:10px;align-items:center}.brand-mark{font-size:19px;display:grid;place-items:center;width:30px;height:30px;border-radius:7px;background:var(--ink);color:#fff;font-weight:750}.nav-links{display:flex;gap:30px;font-size:13px;font-weight:550;color:var(--muted)}.hero{padding:62px 0 0;text-align:center}.eyebrow{margin:0 0 15px;font-size:11px;letter-spacing:2px;font-weight:700;color:var(--blue)}h1{max-width:1050px;font-size:clamp(30px,3.7vw,49px);letter-spacing:-1.8px;line-height:1.16;margin:0 auto 22px;font-weight:740}h1 span{color:var(--blue)}.subtitle{font-size:19px;color:var(--muted);margin:0 auto 21px;max-width:760px}.authors{font-size:15px;margin:0 0 3px}.affiliations{font-size:12px;color:var(--muted);margin:0}.resource-buttons{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:26px 0 44px}.button{min-height:43px;padding:9px 18px;border:1px solid #ced5df;border-radius:25px;display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:600;background:#fff;transition:background .15s,transform .15s}.button:hover{background:#f3f6fa;transform:translateY(-1px)}.button.primary{background:var(--ink);border-color:var(--ink);color:white}.button.primary:hover{background:#2b405d}.button svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linejoin:round}.teaser{margin:0;border-bottom:1px solid var(--line);padding:0 20px 28px}.teaser img{max-width:1060px;margin:auto}.teaser figcaption{margin-top:19px;font-weight:600;font-size:13px}.teaser figcaption span{color:var(--muted);font-weight:400}figure{margin:0}figcaption{font-size:12px;line-height:1.6;color:var(--muted);text-align:center}.section{padding:76px 0}.reading{max-width:860px}.section .eyebrow,.section h2{text-align:center}h2{margin:0 0 18px;font-size:clamp(26px,3vw,34px);line-height:1.22;letter-spacing:-1px;font-weight:700}.abstract{font-size:16px;line-height:1.9;color:#4e5a6b;margin:20px 0 0}.abstract strong{color:var(--ink);font-weight:600}.method-section{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.lead{margin:0 auto 30px;text-align:center;color:var(--muted);max-width:750px;font-size:15px}.method-figure{background:white;border:1px solid var(--line);border-radius:12px;padding:8px 16px 20px;overflow:hidden}.method-figure img{width:100%}.agent-roles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;margin-top:30px}.agent-roles>div{padding-left:14px;border-left:2px solid #dfe5ed}.role-number{font-family:var(--mono);font-size:11px;font-weight:600}.interpreter{color:#237ac1}.scout{color:#208b86}.director{color:#8053b2}.critic{color:#bb651b}.agent-roles h3{font-size:15px;display:inline;margin:0 0 0 7px}.agent-roles p{margin:8px 0 0;font-size:13px;line-height:1.7;color:var(--muted)}.demo-nav{position:sticky;top:0;z-index:10;border-bottom:1px solid var(--line);background:rgba(255,255,255,.96);backdrop-filter:blur(12px)}.demo-nav-inner{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}.demo-label{font-family:var(--mono);font-size:10px;letter-spacing:1.3px;color:var(--muted)}.demo-nav nav{display:flex;align-items:center;gap:28px}.demo-nav a{font-size:13px;font-weight:550;padding:20px 0;border-bottom:2px solid transparent}.demo-nav a.active{color:var(--blue);border-bottom-color:var(--blue)}.demo-nav a span{font-family:var(--mono);font-size:10px;color:var(--muted);margin-left:5px}.gallery-section{padding:64px 0}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:28px}.section-heading .eyebrow,.section-heading h2{text-align:left}.section-heading .eyebrow{font-size:10px;letter-spacing:1.5px;margin-bottom:10px}.section-heading h2{margin-bottom:10px}.section-description{font-size:14px;color:var(--muted);margin:0}.count{font-family:var(--mono);font-size:30px;color:#a5afbd;white-space:nowrap;font-weight:400}.count span{font-size:9px;letter-spacing:1px;display:block;text-align:right}.demo-grid{display:grid;gap:24px 20px}.compact-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.demo-card{min-width:0}.demo-frame{aspect-ratio:16/9;position:relative;overflow:hidden;border:1px solid #dce3ec;border-radius:8px;background:#f0f3f7;display:flex;align-items:center;justify-content:center}.placeholder-inner{display:flex;flex-direction:column;align-items:center;color:#7b889a;gap:10px}.frame-icon{width:30px;height:23px;border:1.3px solid #a9b5c5;border-radius:3px;position:relative}.frame-icon:before,.frame-icon:after{content:"";position:absolute;width:8px;height:1px;background:#a9b5c5;top:10px;left:10px}.frame-icon:after{transform:rotate(90deg)}.placeholder-label{font-size:10px;letter-spacing:1.2px;font-weight:550}.slot-corner{position:absolute;top:12px;left:13px;font-family:var(--mono);font-size:10px;color:#778396}.aspect-label{position:absolute;bottom:10px;right:12px;font:9px var(--mono);color:#8995a5}.demo-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;padding-top:10px}.demo-meta h3{font-size:12px;margin:0;font-weight:600;line-height:1.5}.demo-state{font-size:10px;color:#7c8795;white-space:nowrap}.demo-caption{font-size:12px;color:var(--muted);margin:7px 0 0}.demo-frame video{display:block;width:100%;height:100%;object-fit:contain;background:#111}.media-error{position:absolute;inset:0;background:#f0f3f7;display:grid;place-items:center;text-align:center;padding:20px;font-size:12px;color:var(--muted)}.soft{background:#f9fafc;border-block:1px solid var(--line)}.benchmark-section{background:#f0f5fb;border-block:1px solid #dfe8f3;padding:48px 0}.benchmark-layout{display:grid;grid-template-columns:1fr 1.1fr;align-items:center;gap:64px}.benchmark-layout h2,.benchmark-layout .eyebrow{text-align:left}.benchmark-layout h2{font-size:29px;margin-bottom:12px}.benchmark-layout p:not(.eyebrow){font-size:14px;color:var(--muted);margin:0}.stats{display:grid;grid-template-columns:repeat(3,1fr);margin:0;gap:18px}.stats div{padding-left:22px;border-left:1px solid #cedaea}.stats dt{font-size:37px;font-weight:650;letter-spacing:-1.2px;color:#24558d;line-height:1.2}.stats dd{margin:8px 0 0;font-size:12px;color:var(--muted)}.resources{padding:64px 0 72px}.resource-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:30px}.resource-item{border-top:1px solid var(--line);padding:20px 0;display:flex;align-items:flex-start;justify-content:space-between;gap:10px}.resource-item h3{font-size:15px;margin:0 0 5px}.resource-item p{font-size:12px;color:var(--muted);margin:0}.resource-item>a{color:var(--blue)}.status{font-size:9px;white-space:nowrap;border:1px solid var(--line);border-radius:20px;padding:3px 7px;color:var(--muted)}footer{border-top:1px solid var(--line);background:#fafbfc;padding:25px 0}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}.footer-inner .wordmark{font-size:18px}.footer-inner p,.footer-inner>a:last-child{font-size:11px;color:var(--muted)}.skip-link{position:fixed;top:-80px;left:15px;background:var(--ink);color:#fff;padding:10px;z-index:100}.skip-link:focus{top:12px}.noscript{padding:20px;text-align:center}
@media(min-width:1500px){.wrap{width:min(1240px,calc(100% - 80px))}}
@media(max-width:900px){.compact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.agent-roles{gap:20px;grid-template-columns:repeat(2,minmax(0,1fr))}.benchmark-layout{gap:30px;grid-template-columns:1fr}.resource-grid{gap:24px}.status{font-size:8px}.footer-inner{flex-wrap:wrap}.desktop-break{display:none}h1{max-width:760px}.demo-label{display:none}.demo-nav-inner{justify-content:center}.resource-item{flex-wrap:wrap}}
@media(max-width:560px){.wrap{width:calc(100% - 36px)}.nav{height:62px}.nav-links{gap:15px;font-size:11px}.nav-links a:first-child{display:none}.wordmark{font-size:20px}.brand-mark{width:25px;height:25px;font-size:16px}.hero{padding-top:40px}h1{font-size:32px;letter-spacing:-1.1px}.subtitle{font-size:16px}.resource-buttons{gap:7px;margin-bottom:30px}.button{padding:8px 12px;font-size:11px;min-height:42px}.teaser{padding:0 0 22px}.teaser figcaption{font-size:11px}.teaser figcaption span{display:block;margin-top:4px}.section{padding:46px 0}.eyebrow{font-size:9px;letter-spacing:1.5px}.abstract{font-size:14px;line-height:1.85}h2{font-size:27px}.lead{font-size:13px}.method-figure{padding:4px 6px 12px;border-radius:7px}.method-figure figcaption{font-size:10px;padding:0 8px}.agent-roles{gap:23px 16px}.agent-roles h3{font-size:13px}.agent-roles p{font-size:12px}.demo-nav-inner{min-height:58px}.demo-nav nav{gap:20px;justify-content:space-between;width:100%}.demo-nav a{font-size:11px;padding:17px 0}.demo-nav a span{font-size:9px;margin-left:2px}.section-heading{align-items:flex-start;gap:14px}.section-heading .eyebrow{font-size:8px;letter-spacing:1px}.section-description{font-size:13px}.count{font-size:24px}.count span{font-size:8px}.compact-grid{grid-template-columns:1fr}.demo-grid{gap:24px}.demo-meta h3{font-size:13px}.placeholder-label{font-size:11px}.stats{gap:10px}.stats div{padding-left:12px}.stats dt{font-size:32px}.stats dd{font-size:10px}.resource-grid{grid-template-columns:1fr;gap:0}.resource-item{flex-wrap:nowrap}.footer-inner{gap:10px}.footer-inner p{width:100%;margin:0}.footer-inner>a:last-child{font-size:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

/* Eight V2V examples, each with an original reference and a generated result. */
.comparison-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.comparison-card{padding:18px;border:1px solid var(--line);border-radius:12px;background:#fff}
.comparison-card>.demo-meta{padding:0 0 16px;border-bottom:1px solid var(--line);margin-bottom:14px}
.comparison-card .demo-meta h3{font-size:14px}
.comparison-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.comparison-panel{min-width:0}
.comparison-label{text-align:left;font-size:11px;font-weight:600;color:var(--muted);margin-bottom:9px}
.comparison-panel.result .comparison-label{color:var(--blue)}
.comparison-panel.result .demo-frame{background:#edf3fb;border-color:#d7e3f3}
.comparison-card .placeholder-label{font-size:9px;letter-spacing:.8px}
.comparison-card .slot-corner{font-size:8px;top:9px;left:10px}
.comparison-card .demo-caption{margin-top:14px}
@media(max-width:900px){.comparison-grid{grid-template-columns:1fr}}
@media(max-width:560px){.comparison-card{padding:16px}.comparison-pair{grid-template-columns:1fr;gap:18px}.comparison-label{font-size:12px}.comparison-card .placeholder-label{font-size:11px}}

/* Keep the four long takes larger within the same T2V gallery. */
@media(min-width:901px){#t2v-grid .demo-wide{grid-column:span 2}#t2v-grid .demo-wide .demo-meta h3{font-size:14px}}

/* Reserve readable input text above every T2V example, including empty slots. */
.demo-prompt{margin-bottom:12px;padding:14px 16px;min-height:104px;border:1px solid var(--line);border-radius:8px;background:#fff}
.prompt-label{display:block;font:600 10px var(--mono);letter-spacing:1px;text-transform:uppercase;color:var(--blue)}
.prompt-text{margin:8px 0 0;font-size:13px;line-height:1.7;color:var(--ink);white-space:pre-wrap;overflow-wrap:anywhere}
.prompt-empty{color:#7c8795}
.demo-wide .demo-prompt{min-height:128px}
.demo-wide .prompt-text{font-size:14px}

/* Let each row's instructions grow without cropping; align the video frames below. */
#t2v-grid .demo-card{display:flex;flex-direction:column}
#t2v-grid .demo-prompt{flex:1}
#t2v-grid .demo-frame{flex-shrink:0;width:100%}
.demo-duration{font:10px var(--mono);color:var(--muted);white-space:nowrap}

/* Shared playback control for each reference/result pair. */
.comparison-card .demo-meta{gap:14px;flex-wrap:wrap}
.pair-play-button{flex-shrink:0;padding:8px 13px;border:1px solid var(--blue);border-radius:6px;background:#fff;color:var(--blue);font:600 12px var(--sans,system-ui);cursor:pointer;min-height:36px}
.pair-play-button:hover{background:#edf3ff}
.pair-play-button:focus-visible{outline:3px solid #90b5ff;outline-offset:3px}
.pair-play-button:disabled{cursor:wait;opacity:.65}
.pair-play-button[aria-pressed="true"]{background:var(--blue);color:white}

.button[aria-disabled="true"],.button[aria-disabled="true"]:hover{color:var(--muted);background:#fff;transform:none;cursor:default}

/* Author order and institution numbering follow the supplied title page. */
.authors{display:grid;grid-template-columns:repeat(4,max-content);justify-content:center;gap:3px 24px;margin:0 auto 15px;font-size:16px}
.author{white-space:nowrap}
.author sup{margin-left:2px;font-size:.72em}
.affiliations{display:flex;flex-wrap:wrap;justify-content:center;gap:3px 22px;max-width:850px;margin:0 auto;font-size:13px}
.affiliation sup{margin-right:3px}
@media(max-width:700px){.authors{grid-template-columns:repeat(2,max-content);gap:5px 20px;font-size:14px}.affiliations{flex-direction:column;font-size:12px}}

.demo-explanation{max-width:960px;line-height:1.8}
.prompt-text strong{font-weight:750;color:var(--ink)}