:root{--ink:#242344;--indigo:#3f3e7b;--lavender:#eae7fa;--blue:#dce6f8;--muted:#6c6a81;--line:#e2e1ed;--paper:#fff;--soft:#f6f6fb}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Avenir Next",Avenir,"Segoe UI",sans-serif;font-size:16px;line-height:1.6}a{color:var(--indigo);text-decoration:none}button{font:inherit;cursor:pointer}button,a,input{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #847dcc;outline-offset:4px}img{display:block;max-width:100%}.site-header{max-width:1260px;margin:auto;padding:19px 32px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700}.brand img{width:36px;height:36px;object-fit:contain}nav{display:flex;gap:30px;font-size:14px}nav 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var(--line);border-radius:5px;background:white;color:var(--indigo);padding:4px 12px}.video-controls input{width:120px;accent-color:var(--indigo)}@media(min-width:850px){.author-break{display:none}}@media(max-width:850px){.hero-title>img{width:90px;height:90px}h1{font-size:49px}h1 span{font-size:22px}.section-heading{align-items:start;flex-direction:column}.research{gap:30px}h2{font-size:32px}.method-points{gap:22px}footer{margin:0 25px}}@media(max-width:600px){main{padding:0 18px}.site-header{padding:14px 18px}nav{gap:14px;font-size:12px}nav a[href="#research"]{display:none}.hero{padding:35px 0 40px}.hero-title{flex-direction:column;gap:15px}.hero-title>img{width:100px;height:100px}h1{text-align:center;font-size:46px;letter-spacing:-2px}h1 span{font-size:22px}.authors{font-size:14px}.affiliations span{display:block;margin:4px 0}.button{padding:9px 13px}.hero-summary{font-size:15px}.featured{padding:15px}.demo-top 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/* Keep paired media aligned when their labels wrap on small screens. */
@media(max-width:600px){.media-label{min-height:36px;align-items:flex-end;gap:6px}}

.citation{max-width:1000px;margin:0 auto;padding:0 0 70px}.citation .section-heading{align-items:center}.citation h2{font-size:30px;margin:0}.citation pre{margin:0;padding:24px;background:var(--soft);border:1px solid var(--line);border-radius:8px;overflow-x:auto;font-size:14px;line-height:1.8;color:var(--indigo);tab-size:2}.citation code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}@media(max-width:600px){.citation{padding-bottom:45px}.citation .section-heading{flex-direction:row;gap:12px}.citation pre{padding:16px;font-size:12px}}

.section-nav{position:fixed;right:22px;top:50%;transform:translateY(-50%);width:128px;display:flex;flex-direction:column;gap:3px;z-index:10;padding:12px 0;background:var(--paper)}.section-nav-title{font-size:11px;color:var(--muted);padding:0 12px 9px}.section-nav a{font-size:13px;padding:7px 12px;border-left:2px solid var(--line);color:var(--muted)}.section-nav a:hover{color:var(--indigo);background:var(--soft)}.section-nav a[aria-current="location"]{color:var(--indigo);border-left-color:var(--indigo);background:var(--lavender);font-weight:600}@media(min-width:1000px){main,.site-header{width:calc(100% - 180px);margin-left:auto;margin-right:160px}footer{width:calc(100% - 244px);margin-left:auto;margin-right:192px}}@media(max-width:999px){.section-nav{position:sticky;top:0;transform:none;width:100%;padding:8px 18px;flex-direction:row;gap:4px;overflow-x:auto;border-bottom:1px solid var(--line);background:rgba(255,255,255,.97)}.section-nav-title{display:none}.section-nav a{border-left:0;border-bottom:2px solid transparent;padding:5px 10px;font-size:12px;white-space:nowrap;flex-shrink:0}.section-nav a[aria-current="location"]{border-bottom-color:var(--indigo);border-left:0;border-radius:4px 4px 0 0}html{scroll-padding-top:65px}}

[data-paper-link][aria-disabled="true"]{cursor:default;color:var(--muted)}

.pair-triple{grid-template-columns:1fr 1fr 1fr;gap:6px}
.mask-compare{cursor:col-resize;user-select:none}.mask-compare img:first-child{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}.mask-overlay{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;opacity:.45;mix-blend-mode:multiply;clip-path:inset(0 0 0 50%)}.mask-divider{position:absolute;top:0;bottom:0;left:50%;width:3px;background:var(--indigo);transform:translateX(-50%);z-index:2;pointer-events:none}.mask-handle{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:28px;height:28px;border-radius:50%;background:var(--indigo);border:2px solid white;box-shadow:0 1px 4px rgba(0,0,0,.3);pointer-events:none}
.play-btn{border:1px solid var(--line);border-radius:50%;background:white;color:var(--indigo);width:42px;height:42px;padding:0;display:inline-flex;align-items:center;justify-content:center}.play-btn svg{width:22px;height:22px}.play-btn:hover:not(:disabled){background:var(--lavender)}
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@media(max-width:600px){.pair-triple{grid-template-columns:1fr 1fr 1fr}}