:root{--paper:#faf9f6;--ink:#282a27;--muted:#747770;--line:#ddded6;--accent:#c85636;--tint:#f5ece5;--white:#fff;--radius:12px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:94px}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Avenir Next",Avenir,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:15px;-webkit-font-smoothing:antialiased}button,select,input{font:inherit}a{color:inherit;text-decoration:none}button,a,select,input{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}a:focus-visible,button:focus-visible,select:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}button{color:inherit}button,select{border:0}img{max-width:100%}figure,p,h1,h2,h3{margin:0}.wrap{width:min(1200px,calc(100% - 96px));margin-inline:auto}.skip-link{position:fixed;z-index:100;left:20px;top:-80px;background:var(--ink);color:white;padding:12px}.skip-link:focus{top:12px}.site-header{height:86px;max-width:1440px;margin:auto;padding:0 48px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.wordmark{font-size:19px;letter-spacing:-.6px;display:flex;align-items:center;gap:8px;font-weight:650}.wordmark-degree{font-size:13px;color:var(--accent);margin-left:-3px;align-self:flex-start;padding-top:4px}.orbit{width:30px;height:30px;border:1.5px solid var(--accent);border-radius:50%;display:inline-block;position:relative;margin-right:3px;transform:rotate(-26deg)}.orbit:before,.orbit:after{content:"";position:absolute;border:1px solid var(--accent);border-radius:50%;inset:4px -5px}.orbit:after{inset:-3px 8px}.orbit i{width:5px;height:5px;background:var(--accent);border-radius:50%;position:absolute;left:-2px;top:7px}.site-header nav{display:flex;gap:30px;align-items:center;font-size:13px;font-weight:500}.site-header nav a{transition:color .2s}.site-header nav a:hover{color:var(--accent)}.nav-repo{padding-left:27px;border-left:1px solid var(--line)}.nav-repo span{margin-left:8px}.hero{text-align:center;padding-top:64px;padding-bottom:39px}.eyebrow{text-transform:uppercase;letter-spacing:2px;font-size:10px;font-weight:650;color:var(--muted)}.hero .eyebrow{color:var(--accent);font-size:11px;letter-spacing:2.5px}.tiny-orbit{font-size:13px;margin-right:7px}.hero h1{font-size:clamp(60px,6.9vw,94px);font-weight:580;letter-spacing:-5.5px;line-height:1.13;margin:20px 0 21px}.hero h1 em{font-family:Georgia,"Times New Roman",serif;font-weight:400;color:var(--accent);letter-spacing:-6px}.title-dot{color:var(--accent)}.paper-title{font-size:clamp(18px,2.1vw,26px);font-weight:400;line-height:1.55;letter-spacing:-.55px;color:#565a54}.hero-links{display:flex;gap:10px;justify-content:center;margin-top:29px}.button{font-size:12px;font-weight:550;padding:13px 19px;border:1px solid var(--line);border-radius:6px;display:inline-flex;gap:26px;align-items:center;transition:background .2s,transform .2s}.button:hover{transform:translateY(-2px)}.primary{background:var(--ink);color:white;border-color:var(--ink)}.primary:hover{background:#454a42}.secondary:hover{background:#f0efe9}.hero-rule{display:flex;align-items:center;justify-content:center;gap:16px;color:#999c94;font-size:9px;letter-spacing:2px;margin-top:45px}.hero-rule i{width:33px;height:1px;background:var(--line)}.section{padding-top:49px;padding-bottom:62px}.section-top{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:29px}.section-top .eyebrow{margin-bottom:12px}h2{font-size:31px;line-height:1.24;letter-spacing:-1.1px;font-weight:500}h2 em{font-weight:400;font-family:Georgia,"Times New Roman",serif;color:#73796c}.section-intro{font-size:12px;line-height:1.8;color:var(--muted);padding-bottom:2px}.scene-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:25px}.scene-tab{display:flex;align-items:center;text-align:left;padding:10px;background:transparent;border:1px solid var(--line);border-radius:var(--radius);gap:11px;position:relative;min-height:91px;transition:background .2s,border-color .2s}.scene-tab:hover{background:#f0eee8;border-color:#b4b9af}.scene-tab.active{border-color:var(--accent);background:var(--tint)}.scene-tab img{width:64px;height:64px;object-fit:cover;border-radius:6px}.scene-tab>span:not(.scene-arrow){min-width:0}.scene-tab small{font-size:8px;letter-spacing:1px;color:var(--muted);display:block;margin-bottom:4px}.scene-tab strong{font-size:11px;font-weight:600;line-height:1.4;display:block}.scene-duration{display:block;font-size:9px;color:var(--muted);margin-top:5px;white-space:nowrap}.scene-arrow{position:absolute;right:10px;top:8px;font-size:11px;color:var(--accent);opacity:0}.scene-tab.active .scene-arrow{opacity:1}.comparison-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:14px}.mode-switch{display:flex;padding:4px;border:1px solid var(--line);border-radius:7px;background:#f1f0eb;gap:4px}.mode-switch button{font-size:11px;padding:7px 13px;border-radius:4px;background:transparent;color:var(--muted)}.mode-switch button span{margin-right:5px;font-size:14px;vertical-align:-1px}.mode-switch .selected{background:white;box-shadow:0 1px 3px #20202012;color:var(--ink)}.baseline-picker{display:flex;align-items:center;gap:12px}.baseline-picker label{font-size:11px;color:var(--muted)}.baseline-picker select{border:1px solid var(--line);background:var(--paper);padding:9px 31px 9px 12px;border-radius:6px;font-size:12px;max-width:260px}.comparison{display:grid;grid-template-columns:1fr 1fr;gap:16px;position:relative;isolation:isolate}.video-panel{overflow:hidden;background:#191d1b;border:1px solid #373b36;border-radius:10px;position:relative;min-width:0;aspect-ratio:1}.ours-panel{border-color:var(--accent)}.video-panel video{width:100%;height:100%;object-fit:contain;display:block;background:#242822}.panel-label{position:absolute;left:14px;right:14px;top:14px;display:flex;align-items:center;justify-content:space-between;z-index:2;pointer-events:none;gap:8px}.panel-label>span{display:flex;align-items:center;background:#171d1bdd;backdrop-filter:blur(8px);color:#fff;padding:7px 10px;border-radius:4px;font-size:11px;font-weight:500;gap:7px}.panel-label i{display:inline-block;width:6px;height:6px;background:#f18f6d;border-radius:50%}.panel-label .method-tag{font-size:9px;text-transform:uppercase;letter-spacing:1px;background:#fffdf5df;color:#3b4038}.ours-panel .panel-label .method-tag{background:var(--accent);color:white}.video-status{position:absolute;z-index:6;bottom:18px;left:50%;transform:translateX(-50%);color:white;background:#292e27ec;border:1px solid #fff3;border-radius:6px;font-size:12px;padding:10px 17px;max-width:90%;text-align:center}.video-status[hidden]{display:none}.comparison[data-mode="wipe"]{display:block;width:min(100%,720px);aspect-ratio:1;margin:auto;border-radius:10px;overflow:hidden;background:#1a1f1a;--wipe:50%}.comparison[data-mode="wipe"] .video-panel{position:absolute;inset:0;width:100%;height:100%;border:0;border-radius:0}.comparison[data-mode="wipe"] .ours-panel{z-index:3;clip-path:inset(0 calc(100% - var(--wipe)) 0 0)}.comparison[data-mode="wipe"] .ours-panel .method-tag{display:none}.comparison[data-mode="wipe"] .baseline-panel .panel-label{justify-content:flex-end}.comparison[data-mode="wipe"] .baseline-panel .method-tag{display:none}.wipe-control{position:absolute;inset:0;z-index:4}.wipe-control[hidden]{display:none}.wipe-line{position:absolute;left:var(--wipe);top:0;bottom:0;border-left:2px solid white;filter:drop-shadow(0 0 3px #0005);pointer-events:none}.wipe-line span{position:absolute;top:50%;left:0;transform:translate(-50%,-50%);height:44px;width:44px;border-radius:50%;display:grid;place-items:center;background:white;font-size:20px;color:var(--ink);box-shadow:0 2px 8px #0003}.wipe-control input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize}.wipe-control:focus-within .wipe-line span{outline:3px solid var(--accent);outline-offset:3px}.playback-controls{display:flex;align-items:center;gap:13px;padding:15px 3px 13px;border-bottom:1px solid var(--line)}.play-button{background:var(--ink);color:white;border-radius:5px;padding:9px 13px;display:flex;align-items:center;gap:8px;font-size:11px;min-width:81px;justify-content:center}.play-button:hover{background:#4b5145}#play-icon{font-size:10px}.icon-button{background:transparent;font-size:22px;line-height:1;padding:5px;color:#666d61}.icon-button:hover{color:var(--accent)}.time{font-size:10px;color:var(--muted);font-variant-numeric:tabular-nums;min-width:25px}.timeline{flex:1;min-width:30px;height:4px;accent-color:var(--accent);cursor:pointer}.playback-controls select{background:transparent;font-size:11px;padding:5px;color:#53594e}.comparison-caption{display:flex;justify-content:space-between;gap:25px;font-size:10px;color:var(--muted);line-height:1.7;padding:13px 0 16px}.comparison-caption a{white-space:nowrap;color:#555f50;border-bottom:1px solid #b8bdae;align-self:flex-start}.comparison-notes{border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:11px}.comparison-notes summary{cursor:pointer;padding:16px 0;font-weight:550}.comparison-notes summary span{float:right;font-size:10px;font-weight:400;color:var(--muted)}.notes-body{font-size:12px;color:var(--muted);line-height:1.8;padding:1px 0 19px;max-width:940px}.notes-body p+p{margin-top:10px}.notes-body strong{color:var(--ink);font-weight:600}.framework-section{background:#f0f1eb;border-top:1px solid #e6e7de;border-bottom:1px solid #e1e3d8;padding-top:58px}.text-link{font-size:11px;color:#53604e;padding-bottom:4px;border-bottom:1px solid #b3bbaa;white-space:nowrap}footer{border-top:1px solid var(--line);padding-top:28px;padding-bottom:34px;display:flex;align-items:center;justify-content:space-between;gap:20px}footer p,footer>a:last-child{font-size:10px;color:var(--muted)}.footer-brand{font-size:16px;font-weight:550;letter-spacing:-.6px}.footer-brand em{font-family:Georgia,serif;color:var(--accent);font-size:19px;font-weight:400}.noscript{text-align:center;padding:20px;background:var(--tint)}.comparison:fullscreen{background:#171c17;display:flex;align-items:center;justify-content:center;width:100vw;height:100vh;padding:20px;border-radius:0}.comparison[data-mode="side"]:fullscreen .video-panel{flex:none;width:min(calc(50vw - 28px),calc(100vh - 40px));height:auto}.comparison[data-mode="wipe"]:fullscreen{width:min(100vw,100vh);height:min(100vw,100vh);margin:auto;padding:0}.comparison:fullscreen::backdrop{background:#171c17}
@media(min-width:1500px){.hero{padding-top:75px;padding-bottom:50px}.hero h1{font-size:100px}.section{padding-top:57px}.scene-tab strong{font-size:12px}}
@media(max-width:1050px){.wrap{width:calc(100% - 56px)}.site-header{padding:0 28px}.site-header nav{gap:22px}.scene-tab{gap:8px}.scene-tab img{width:47px;height:55px}.scene-tab strong{font-size:10px}.scene-duration{font-size:8px}.scene-tab small{font-size:7px}h2{font-size:27px}.section-intro{font-size:11px}.panel-label>span{font-size:10px}.panel-label .method-tag{font-size:8px}}
@media(max-width:760px){html{scroll-padding-top:20px}.wrap{width:calc(100% - 36px)}.site-header{height:69px;padding:0 20px}.wordmark{font-size:16px}.wordmark-degree{font-size:10px}.orbit{width:25px;height:25px}.site-header nav{gap:16px}.site-header nav a{font-size:11px}.nav-repo{padding-left:0;border-left:0}.hero{padding-top:48px;padding-bottom:27px}.hero .eyebrow{font-size:8px;letter-spacing:1.7px}.hero h1{font-size:clamp(47px,9.5vw,71px);letter-spacing:-3px;margin-top:22px}.hero h1 em{letter-spacing:-3px}.paper-title{font-size:18px;line-height:1.6;max-width:550px;margin:auto;padding:0 8px}.desktop-break{display:none}.hero-links{margin-top:24px}.hero-rule{margin-top:34px;font-size:8px;gap:13px}.hero-rule i{width:22px}.section{padding-top:33px;padding-bottom:39px}.section-top{display:block;margin-bottom:22px}.section-intro{margin-top:13px;font-size:12px}.section-intro br{display:none}h2{font-size:27px;line-height:1.35}.eyebrow{font-size:9px}.scene-tabs{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-bottom:20px}.scene-tab{padding:8px;min-height:79px;gap:10px}.scene-tab img{width:55px;height:60px}.scene-tab strong{font-size:11px}.scene-tab small{font-size:8px}.scene-duration{font-size:9px}.comparison-toolbar{gap:12px;align-items:flex-end}.mode-switch button{padding:6px 9px;font-size:10px}.mode-switch button span{display:none}.baseline-picker{display:block;flex:1;text-align:right}.baseline-picker label{display:block;font-size:9px;margin-bottom:6px}.baseline-picker select{font-size:10px;padding:9px 6px;max-width:190px;width:100%}.comparison{gap:8px}.video-panel{border-radius:6px}.panel-label{top:8px;left:7px;right:7px}.panel-label>span{font-size:9px;padding:5px 6px}.panel-label .method-tag{display:none}.panel-label i{width:4px;height:4px}.playback-controls{gap:7px;padding-top:13px}.play-button{min-width:35px;padding:10px}#play-label{display:none}.icon-button{font-size:19px;padding:3px}.time{font-size:9px;min-width:23px}.playback-controls select{font-size:10px;padding:3px;max-width:49px}.comparison-caption{display:block;font-size:10px}.comparison-caption a{display:inline-block;margin-top:7px}.comparison-notes summary span{float:none;display:block;margin-top:7px;font-size:9px}.comparison-notes summary{font-size:11px}.framework-section .text-link{display:inline-block;margin-top:17px}footer{padding-top:22px;padding-bottom:24px;flex-wrap:wrap;gap:10px}footer p{display:none}footer>a:last-child{font-size:9px}.video-status{font-size:10px;bottom:8px;padding:7px 9px}.wipe-line span{width:35px;height:35px}}
@media(max-width:390px){.site-header nav a:nth-child(2){display:none}.hero h1{font-size:45px}.hero .eyebrow{font-size:7px}.paper-title{font-size:16px}.button{font-size:10px;padding:12px 14px;gap:18px}.scene-tab img{width:44px;height:55px}.scene-tab strong{font-size:10px}.scene-duration{font-size:8px}.scene-tab{gap:7px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Paired spatial examples; labels stay outside the annotated footage. */
.spatial-section{border-top:1px solid var(--line)}
.spatial-tabs{display:flex;gap:10px;flex-shrink:0}
.spatial-tab{position:relative;padding:3px;background:transparent;border:1px solid var(--line);border-radius:8px;line-height:0;transition:border-color .2s,background .2s}
.spatial-tab:hover{border-color:#999f91;background:#f0eee8}
.spatial-tab.active{border-color:var(--accent);background:var(--tint)}
.spatial-tab img{display:block;width:96px;height:64px;object-fit:cover;border-radius:5px}
.spatial-tab span{position:absolute;bottom:8px;left:8px;background:#20271edd;color:white;border-radius:3px;font-size:9px;line-height:1;padding:4px 5px;font-variant-numeric:tabular-nums}
.spatial-tab.active span{background:var(--accent)}
.spatial-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;position:relative}
.spatial-pair figure{min-width:0;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#f1f0eb}
.spatial-pair figcaption{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:13px 15px;font-size:11px}
.spatial-pair figcaption>span:first-child{display:flex;align-items:center;gap:7px;font-weight:550}
.spatial-pair figcaption>span:last-child{font-size:9px;color:var(--muted)}
.spatial-pair figcaption i{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.spatial-pair video{display:block;width:100%;aspect-ratio:1;object-fit:contain;background:#222721}
.spatial-caption{font-size:10px;color:var(--muted);line-height:1.8;padding-top:13px}
#spatial-play-icon{font-size:10px}
.spatial-player:fullscreen{background:var(--paper);padding:20px;display:flex;flex-direction:column;justify-content:center}
.spatial-player:fullscreen .spatial-pair{width:min(100%,calc(200vh - 252px));margin-inline:auto}
.spatial-player:fullscreen .playback-controls{width:min(100%,calc(200vh - 252px));margin-inline:auto}
@media(max-width:760px){.spatial-tabs{margin-top:20px;gap:9px}.spatial-pair{gap:8px}.spatial-pair figure{border-radius:6px}.spatial-pair figcaption{padding:10px 8px;font-size:10px}.spatial-pair figcaption>span:last-child{font-size:8px}.spatial-pair figure:first-child figcaption>span:last-child{display:none}.spatial-tab img{width:88px;height:60px}#spatial-play-label{display:none}.spatial-caption{font-size:10px}.spatial-player:fullscreen{padding:12px}}

/* Two representative input panoramas for the selected case. */
.reference-strip{display:grid;grid-template-columns:180px minmax(0,720px);justify-content:center;align-items:center;gap:30px;padding:19px 24px;margin:0 0 23px;border:1px solid var(--line);border-radius:10px;background:#f3f2ec}
.reference-intro .eyebrow{font-size:8px;letter-spacing:1.4px;color:var(--accent);margin-bottom:9px}
.reference-intro h3{font-size:18px;font-weight:500;letter-spacing:-.4px;margin-bottom:7px}
.reference-intro>p:not(.eyebrow){font-size:11px;color:var(--muted)}
.reference-intro>span{display:block;font-size:9px;line-height:1.6;color:var(--muted);margin-top:7px}
.reference-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;min-width:0}
.reference-pair figure{min-width:0}
.reference-pair a{display:block;border-radius:6px;overflow:hidden;cursor:zoom-in;border:1px solid #d1d3c8}
.reference-pair img{width:100%;height:auto;aspect-ratio:2/1;object-fit:contain;display:block;background:#e7e6df}
.reference-pair figcaption{display:flex;align-items:center;justify-content:space-between;margin-top:7px;color:var(--muted);font-size:9px}
.reference-pair figcaption>span:last-child{color:var(--accent)}
@media(max-width:1050px){.reference-strip{grid-template-columns:150px minmax(0,1fr);gap:20px;padding:17px 19px}.reference-intro h3{font-size:16px}}
@media(max-width:760px){.reference-strip{display:block;padding:14px;margin-bottom:19px}.reference-intro{position:relative;margin-bottom:12px;padding-right:125px}.reference-intro .eyebrow{font-size:7px;margin-bottom:5px}.reference-intro h3{font-size:15px;margin:0}.reference-intro>p:not(.eyebrow){position:absolute;right:0;top:0;font-size:9px}.reference-intro>span{position:absolute;right:0;top:16px;font-size:8px;margin:0;max-width:120px;text-align:right}.reference-pair{gap:10px}.reference-pair figcaption{font-size:8px;margin-top:5px}}
@media(max-width:390px){.reference-strip{padding:12px}.reference-intro{padding-right:115px}.reference-intro h3{font-size:14px}.reference-intro>p:not(.eyebrow){font-size:8px}.reference-intro>span{font-size:7px;max-width:110px}}

/* Introductory figures use one caption each. */
.teaser-section{padding-top:12px;padding-bottom:42px}
.project-figure>a{display:block;cursor:zoom-in;background:white;border-radius:8px;overflow:hidden}
.project-figure img{display:block;width:100%;height:auto}
.project-figure figcaption{max-width:1120px;margin:18px auto 0;font-size:13px;line-height:1.85;color:#62675f;text-align:left}
.framework-section{padding-top:34px;padding-bottom:42px}
.framework-section .section-top{align-items:center;margin-bottom:20px}
.framework-section .section-top .eyebrow{margin-bottom:0}
@media(max-width:760px){.teaser-section{padding-top:8px;padding-bottom:30px}.project-figure figcaption{font-size:11px;line-height:1.8;margin-top:14px}.framework-section{padding-top:26px;padding-bottom:30px}.framework-section .section-top{display:flex;gap:15px;margin-bottom:17px}.framework-section .text-link{font-size:9px;margin-top:0}.project-figure>a{border-radius:5px}}