@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');
:root{--bg:#f4f4f5;--ink:#18181b;--muted:#52525b;--blue:#2563eb;--purple:#9333ea;--line:#e4e4e7;--radius:24px}
*{box-sizing:border-box}html{scroll-behavior:auto;scroll-padding-top:24px}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:var(--blue);text-underline-offset:4px}button,a{touch-action:manipulation}button{font:600 14px/1.4 Inter,sans-serif;cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #0ea5e9;outline-offset:5px}img{display:block;max-width:100%;height:auto}svg{width:19px;height:19px;flex-shrink:0}h1,h2,h3,h4,p,figure{margin:0}h1,h2,h3,h4{line-height:1.3}p+p{margin-top:16px}.container{width:100%;max-width:1100px;margin:auto;padding:0 24px}.hero{position:relative;overflow:hidden;text-align:center;color:#fff;background:radial-gradient(ellipse at 85% 0%,#37308a80,transparent 55%),radial-gradient(ellipse at 0% 100%,#56228a50,transparent 55%),linear-gradient(120deg,#0f172a,#1e1b4b 60%,#0f172a);border-radius:0 0 28px 28px;box-shadow:0 18px 35px #11182720;padding:66px 0 58px;margin-bottom:48px}.hero h1{font-size:64px;font-weight:800;letter-spacing:-2px}.hero h1 span{display:block;font-size:30px;line-height:1.5;font-weight:500;letter-spacing:-.5px;color:#c7d2fe;max-width:850px;margin:16px auto 28px}.authors{display:flex;flex-wrap:wrap;justify-content:center;gap:9px 19px;max-width:1000px;margin:0 auto 24px;font-size:16px;color:#e4e4e7;font-weight:500}.authors span{white-space:nowrap}.authors a{color:inherit;text-decoration-color:#818cf880}.authors sup{font-size:10px;margin-left:2px}.affiliations{display:flex;flex-wrap:wrap;justify-content:center;gap:4px 24px;font-size:15px;color:#dce0fa}.notes{font-size:12px;color:#b5bce3;margin-top:13px}.actions{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-top:27px}.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:44px;padding:10px 22px;border-radius:99px;text-decoration:none;font-weight:600;font-size:15px;border:1px solid #ffffff30;background:#ffffff13;color:white;transition:background .15s,transform .15s}.button:hover{background:#ffffff25;transform:translateY(-1px)}.button.primary{color:#1e1b4b;background:#fff}.hero-links{display:flex;justify-content:center;gap:22px;margin-top:23px;font-size:13px}.hero-links a{color:#c7d2fe;text-decoration:none}.hero-links a:hover{text-decoration:underline}.brand-logos{display:flex;align-items:center;justify-content:center;gap:32px;margin:26px auto 0}.brand-logos img{height:34px;width:auto;max-width:180px;object-fit:contain;background:white;border-radius:4px;padding:3px 7px}.panel{background:#fff;border-radius:var(--radius);padding:40px;margin-bottom:42px;box-shadow:0 10px 25px #18181b08,0 2px 5px #18181b04;border-top:4px solid var(--accent,#3b82f6)}.panel h2{font-size:30px;font-weight:800;letter-spacing:-.7px;color:var(--accent,#2563eb);margin-bottom:25px}.panel h3{font-size:21px;font-weight:700;margin:28px 0 17px}.panel h4{font-size:14px;font-weight:600}.panel p,.panel li{color:#3f3f46;font-size:16px}.abstract p{text-align:justify;line-height:1.85}.teaser{margin-bottom:42px}.figure-frame{display:block;padding:12px;border:1px solid #e4e4e7;border-radius:16px;background:#fff;overflow:hidden;box-shadow:0 3px 10px #18181b06}.figure-frame img{width:100%;border-radius:6px}.caption{font-size:13px;line-height:1.7;color:#71717a;margin-top:14px}.caption strong{color:#3f3f46}.figure-note{display:block;font-size:12px;color:#71717a;margin-top:8px}.method-list{padding-left:22px;margin:24px 0 0}.method-list li+li{margin-top:15px}.method-list strong{color:#18181b}.equation{padding:20px 16px;text-align:center;background:#f5f3ff;border-radius:12px;margin-top:24px;font-family:Georgia,serif;font-size:21px;overflow-x:auto}.equation sub{font-size:12px}.support-note{font-size:13px!important;color:#71717a!important;border-left:3px solid #c4b5fd;padding:3px 0 3px 14px;margin:22px 0}.comparison{padding-top:12px}.comparison+.comparison{margin-top:34px;border-top:1px solid var(--line);padding-top:28px}.comparison-heading{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin-bottom:16px}.comparison-heading h3{margin:0;font-size:18px}.play-together{display:inline-flex;gap:7px;align-items:center;background:#faf5ff;color:#7e22ce;border:1px solid #e9d5ff;border-radius:99px;padding:9px 14px;min-height:40px}.play-together:hover{background:#f3e8ff}.video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.video-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.video-grid.many{grid-template-columns:repeat(2,minmax(0,1fr))}.clip{min-width:0}.clip h4{text-align:center;margin-bottom:9px;min-height:37px;display:flex;justify-content:center;align-items:center;color:#52525b}.clip.ours h4{color:#9333ea;font-weight:700}.video-frame{border:1px solid #d4d4d8;border-radius:12px;overflow:hidden;background:#18181b;position:relative}.ours .video-frame{border:2px solid #c084fc;box-shadow:0 3px 14px #c084fc20}.video-frame video{display:block;width:100%;aspect-ratio:624/352;object-fit:contain;background:#18181b}.prompt{margin-top:16px;padding:12px 16px;border:1px solid #e4e4e7;background:#fafafa;border-radius:12px;font-size:13px;color:#52525b}.prompt summary{cursor:pointer;font-weight:600;color:#52525b}.prompt p{font-size:13px;line-height:1.8;margin-top:12px}.video-help{font-size:13px!important;margin-bottom:24px}.two-figures{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:26px;align-items:start}.table-scroll{overflow-x:auto;margin:24px 0 12px;border:1px solid var(--line);border-radius:12px}table{width:100%;border-collapse:collapse;white-space:nowrap;font-size:13px;font-variant-numeric:tabular-nums}caption{text-align:left;padding:14px 16px;font-weight:600;font-size:14px;background:#fafafa}th,td{padding:12px 13px;text-align:right;border-bottom:1px solid #ededf0}th:first-child,td:first-child{text-align:left}thead{background:#fafafa;color:#52525b}tbody tr:last-child td{border-bottom:0}.guided{background:#faf5ff}.reference{background:#f4f4f5}td small{color:#71717a;font-size:10px;font-weight:400;margin-left:2px}.human-table th{font-size:12px}pre{font-size:12px;line-height:1.7;overflow-x:auto;white-space:pre-wrap;overflow-wrap:anywhere;background:#f4f4f5;padding:22px;border-radius:12px;color:#3f3f46}.citation-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.citation-heading h2{margin-bottom:0}.copy-button{color:#9a3412;background:#fff7ed;border:1px solid #fed7aa;padding:9px 14px;border-radius:99px}.footer{text-align:center;padding:2px 24px 40px;font-size:12px;color:#71717a}.footer a{color:#52525b}.skip{position:absolute;left:-10000px;top:10px;z-index:99}.skip:focus{left:12px;padding:8px 16px;background:white}.back-top{display:block;text-align:right;margin:0 8px 26px;font-size:13px}.status{font-size:12px;color:#7e22ce;min-height:20px;margin-top:8px}.lightbox{border:0;border-radius:16px;padding:15px;max-width:96vw;max-height:94vh;box-shadow:0 20px 80px #0007}.lightbox::backdrop{background:#0f172acc}.lightbox img{max-height:80vh;width:auto;max-width:90vw;object-fit:contain}.lightbox button{display:block;margin:0 0 12px auto;padding:8px 14px;border:1px solid var(--line);border-radius:99px;background:#fff}.zoom-link{cursor:zoom-in}
@media(min-width:1400px){.hero .container{max-width:1160px}}
@media(max-width:760px){.container{padding:0 18px}.hero{padding:45px 0 40px;margin-bottom:30px}.hero h1{font-size:46px;letter-spacing:-1.5px}.hero h1 span{font-size:24px;margin:14px auto 24px}.authors{font-size:14px;gap:8px 15px}.affiliations{font-size:13px}.panel{padding:26px 22px;border-radius:20px;margin-bottom:28px}.panel h2{font-size:27px}.panel h3{font-size:19px}.panel p,.panel li{font-size:15px}.abstract p{text-align:left}.video-grid{grid-template-columns:1fr}.video-grid.two,.video-grid.many{grid-template-columns:1fr 1fr;gap:12px}.clip h4{font-size:12px}.video-grid:not(.two):not(.many) .clip{max-width:100%}.two-figures{grid-template-columns:1fr}.teaser{margin-bottom:28px}.hero-links{gap:17px;flex-wrap:wrap}.brand-logos{gap:20px}.brand-logos img{height:29px}.button{padding:9px 17px;font-size:14px}.figure-frame{padding:7px}.comparison-heading h3{font-size:17px}.prompt p{font-size:13px}.equation{font-size:17px}}
@media(max-width:760px){.desktop-break{display:none}}
@media(max-width:420px){.video-grid.two,.video-grid.many{grid-template-columns:1fr}.hero h1{font-size:42px}.hero h1 span{font-size:20px}.panel{padding:24px 18px}.hero-links{gap:15px}.affiliations{gap:4px 15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}

/* Method explanation and paper algorithms. */
.project-mark{width:148px;height:148px;margin:0 auto 26px;border-radius:50%;overflow:hidden;border:1px solid #ffffff40;background:#000;box-shadow:0 0 34px #818cf840}.project-mark img{width:100%;height:100%;object-fit:cover}.hero{padding-top:44px}.section-intro{max-width:900px;line-height:1.8}.overview-figure{margin:27px 0 31px}.stage-flow{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin:0;padding:0}.stage-flow li{min-width:0;border-top:2px solid color-mix(in srgb,var(--stage) 35%,white);padding:18px 0 0}.stage-number{display:block;font-size:12px;font-weight:700;letter-spacing:1px;color:var(--stage);margin-bottom:12px}.stage-flow h3{margin:0 0 5px;font-size:22px;color:var(--stage)}.stage-flow h4{font-size:13px;color:#27272a;margin:0 0 10px}.stage-flow p{font-size:13px;line-height:1.8;color:#52525b}.fusion-explanation{display:grid;grid-template-columns:1.12fr 1fr;gap:30px;align-items:center;padding:27px 0;margin-top:30px;border-top:1px solid #e4e4e7;border-bottom:1px solid #e4e4e7}.fusion-explanation h3,.reward-mixture h3{font-size:17px;margin:0 0 10px}.fusion-explanation p,.reward-mixture p{font-size:14px;line-height:1.8}.weight-legend{display:flex;flex-wrap:wrap;gap:7px 17px;font-size:11px;color:#71717a;margin-top:15px}.weight-legend i{font-family:Georgia,serif;font-size:16px;margin-right:3px;color:#3730a3}.fusion-math{padding:20px 18px;background:#f5f3ff;border-radius:12px;font-family:Georgia,'Times New Roman',serif;font-size:24px;line-height:1.7;text-align:center}.fusion-math sub{font-size:.6em}.fusion-math sup{font-size:.6em}.fraction-equation{display:flex;gap:12px;justify-content:center;align-items:center;margin-top:15px}.fraction{display:inline-flex;flex-direction:column;text-align:center;line-height:1.5}.fraction>span:first-child{padding:0 8px 7px;border-bottom:1px solid #4c4371}.fraction>span:last-child{padding:5px 8px 0}.method-takeaway{font-size:13px!important;line-height:1.85;margin-top:21px!important;color:#52525b!important}.method-takeaway strong{color:#047857}.algorithm-bridge{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:23px 0;margin:8px 0 15px;border-bottom:1px solid #e4e4e7}.algorithm-bridge>div{min-width:0}.algorithm-bridge span:not(.bridge-arrow){display:block;font-size:11px;color:#71717a;margin-bottom:4px}.algorithm-bridge strong{display:block;font-size:13px;line-height:1.6;color:#3730a3}.bridge-arrow{font-size:21px;color:#a5b4fc}.algorithm-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}.algorithm{min-width:0;border:1px solid #dfe0ec;border-radius:15px;overflow:hidden;background:#fff}.algorithm-heading{padding:22px 22px 18px;border-bottom:1px solid #e4e4e7;background:#fafaff}.algorithm-number{color:#6366f1;font-size:11px;font-weight:700;letter-spacing:1px;text-transform:uppercase}.algorithm-heading h3{font-size:17px;line-height:1.5;margin:8px 0 10px;color:#27272a}.algorithm-heading p{font-size:13px;line-height:1.75;color:#71717a}.algorithm-input,.algorithm-output{display:grid;grid-template-columns:45px 1fr;gap:10px;padding:16px 20px;font-size:12px;line-height:1.8}.algorithm-input{border-bottom:1px solid #eeeef4}.algorithm-input strong,.algorithm-output strong{color:#6366f1;font-size:10px;text-transform:uppercase;letter-spacing:.7px;padding-top:3px}.algorithm-output{border-top:1px solid #e4e4e7;background:#fafaff}.pseudocode{list-style:none;counter-reset:line;margin:0;padding:17px 17px 19px 12px;font-size:12px;line-height:1.85;color:#3f3f46;font-family:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}.pseudocode li{counter-increment:line;display:grid;grid-template-columns:22px minmax(0,1fr);gap:8px;margin:0;padding:4px 0;font-size:inherit;line-height:inherit}.pseudocode li::before{content:counter(line);text-align:right;color:#a1a1aa;font-size:10px;font-variant-numeric:tabular-nums;padding-top:2px}.pseudocode .depth-1>span{padding-left:12px}.pseudocode .depth-2>span{padding-left:24px}.pseudocode i,.algorithm-input i,.algorithm-output i{font-family:Georgia,'Times New Roman',serif;font-size:1.14em}.pseudocode b{color:#4338ca;font-weight:600}.pseudocode sub,.algorithm-input sub{font-size:.75em}.code-note{display:block;color:#a1a1aa;font-family:Inter,sans-serif!important;font-size:10px!important;font-style:normal}.overbar{text-decoration:overline;font-family:Georgia,serif;font-style:italic}.reward-mixture{display:grid;grid-template-columns:1.2fr 1fr;align-items:center;gap:25px;border-top:1px solid #e4e4e7;padding-top:27px;margin-top:28px}.reward-mixture .fusion-math{margin-top:0;font-size:21px}.logo-downloads{display:inline-block;margin:8px 0}.logo-downloads a{color:#71717a}
@media(max-width:900px){.stage-flow{grid-template-columns:1fr 1fr}.algorithm-grid{grid-template-columns:1fr}.pseudocode{font-size:13px}.algorithm-heading h3{font-size:19px}.algorithm-input,.algorithm-output{font-size:13px}}
@media(max-width:600px){.project-mark{width:120px;height:120px;margin-bottom:22px}.hero{padding-top:30px}.stage-flow{gap:22px 18px}.stage-flow h3{font-size:20px}.stage-flow p{font-size:12px}.stage-flow h4{font-size:12px}.fusion-explanation,.reward-mixture{grid-template-columns:1fr;gap:18px}.fusion-math{font-size:22px}.algorithm-bridge{display:grid;grid-template-columns:1fr auto 1fr;gap:15px 10px}.algorithm-bridge>.bridge-arrow:nth-child(4){display:none}.algorithm-bridge strong{font-size:12px}.algorithm-heading{padding:20px 18px}.algorithm-input,.algorithm-output{padding:14px 15px;grid-template-columns:39px 1fr;gap:8px;font-size:12px}.pseudocode{padding:13px 12px 16px 6px;font-size:12px}.pseudocode li{gap:7px}.pseudocode .depth-1>span{padding-left:9px}.pseudocode .depth-2>span{padding-left:18px}.hero-links{gap:10px 17px}.reward-mixture .fusion-math{font-size:21px}}

/* Unreleased paper and code are visible, non-interactive placeholders. */
.actions .unavailable{background:#eeedf2;border:1px solid #e1dfe8;color:#93909f;box-shadow:none;cursor:default;user-select:none;gap:8px}
.actions .unavailable small{font-size:11px;font-weight:500;color:#aaa6b3}
.actions .unavailable:hover{transform:none;box-shadow:none}

/* Original paper algorithm panels, stacked in paper order. */
.algorithm-grid{grid-template-columns:minmax(0,1fr);gap:30px}
.algorithm-original{min-width:0}
.algorithm-original .figure-frame{padding:16px}
.algorithm-original .figure-frame img{border-radius:0}
@media(max-width:600px){.algorithm-original .figure-frame{padding:7px}.algorithm-grid{gap:24px}}
