@charset "UTF-8";
/* Warm white and pale champagne, generous type, restrained depth. */
:root {
 color-scheme:light; --bg:#fffdf9; --surface:#faf6ec; --surface-2:#eee7d8;
 --ink:#28241e; --muted:#675f54; --dim:#766b5c; --line:#e7ded0;
 --ember:#8b5b20; --ember-glow:#d9ae65; --coral:#a77457; --mint:#756342;
 --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
 --mono:ui-monospace,SFMono-Regular,Consolas,monospace; --serif:var(--sans);
 --gutter:60px; --radius:28px; --nav-height:82px; --shadow:0 12px 44px rgb(69 50 27 / 5%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{position:relative;isolation:isolate;margin:0;color:var(--ink);background:var(--bg);font:17px/1.65 var(--sans);-webkit-font-smoothing:antialiased}
/* Two slow, soft light fields drift behind the content; no animated filters. */
body:before,body:after{content:"";position:fixed;z-index:-1;inset:-14vmax;pointer-events:none}
body:before{background:radial-gradient(ellipse at 13% 22%,rgb(248 221 163 / 20%) 0%,transparent 46%),radial-gradient(ellipse at 85% 58%,rgb(255 241 203 / 22%) 0%,transparent 45%);animation:memory-light-champagne 32s ease-in-out infinite alternate}
body:after{background:radial-gradient(ellipse at 60% 4%,rgb(255 234 178 / 18%) 0%,transparent 42%),radial-gradient(ellipse at 26% 90%,rgb(249 227 193 / 16%) 0%,transparent 44%);animation:memory-light-ivory 39s ease-in-out infinite alternate}
@keyframes memory-light-champagne{from{transform:translate3d(-1.5%,1%,0) scale(1)}to{transform:translate3d(2.5%,-2%,0) scale(1.04)}}
@keyframes memory-light-ivory{from{transform:translate3d(1%,2%,0) scale(1.03)}to{transform:translate3d(-2%,-1.5%,0) scale(1)}}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit}
button{color:inherit;cursor:pointer}button:disabled{cursor:default}
img,svg{display:block;max-width:100%}
p,h1,h2,h3,h4{margin:0}p+p{margin-top:20px}
h1,h2,h3,strong{font-weight:650}
em{font-family:inherit;font-style:normal;font-weight:inherit}sup{font-size:.58em}code{font:.88em var(--mono)}
::selection{color:#563c1c;background:#f3e1b7}
:where(a,button,input,select,summary,[tabindex]):focus-visible{outline:3px solid #a17b40;outline-offset:5px}
[hidden]{display:none!important}
.container{width:100%;max-width:1440px;margin:0 auto;padding:0 var(--gutter)}
.visually-hidden{position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;z-index:100;top:12px;left:12px;padding:12px 20px;border-radius:12px;color:#fff;background:var(--ink);transform:translateY(-160%)}
.skip-link:focus{transform:none}

/* Translucent navigation; uninterrupted wordmark. */
.site-header{position:sticky;top:0;z-index:30;border-bottom:1px solid rgb(91 70 39 / 8%);background:rgb(255 253 249 / 86%);backdrop-filter:saturate(140%) blur(22px)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:var(--nav-height)}
.brand{display:inline-flex;align-items:center;gap:12px;font-size:22px;font-weight:680;line-height:1;letter-spacing:-.7px;white-space:nowrap}
.brand img{flex:0 0 auto;width:34px;height:34px;border-radius:9px}
.brand .brand-wordmark{color:var(--ink);font:inherit;letter-spacing:inherit}
.nav-links{display:flex;align-items:center;gap:30px;color:#655d51;font-size:16px}
.nav-links a{display:inline-flex;align-items:center;gap:6px;min-height:44px;font-size:16px;transition:color .2s}
.nav-links a:hover,.nav-links a:is([aria-current=page],[aria-current=location]){color:var(--ink)}
.nav-links a:is([aria-current=page],[aria-current=location]){position:relative;font-weight:600}
.nav-links a:is([aria-current=page],[aria-current=location]):after{content:"";position:absolute;left:0;right:0;bottom:1px;height:2px;border-radius:2px;background:var(--ember)}
.repo-link svg{width:18px;height:18px}
.mobile-nav-toggle{display:none;min-height:44px;padding:8px 14px;border:1px solid var(--line);border-radius:999px;background:var(--bg);font-size:16px}

/* Shared type, controls, and page rhythm. */
.eyebrow{display:flex;align-items:center;gap:10px;color:var(--ember);font:600 14px/1.5 var(--sans);letter-spacing:.5px}
.eyebrow:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ember-glow)}
.hero-eyebrow{font-weight:400}
.hero-eyebrow:before{flex-shrink:0;align-self:flex-start;margin-top:.55em}
.hero-eyebrow>span{min-width:0}
.hero-eyebrow strong{font-weight:700}
.section-index{color:var(--dim);font:500 13px/1.5 var(--sans);letter-spacing:.5px}
.section{padding:124px 0}
.section.container{padding-right:var(--gutter);padding-left:var(--gutter)}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:48px;margin-bottom:48px}
.section-heading h2{margin-top:20px;font-size:clamp(42px,4.2vw,60px);line-height:1.13;letter-spacing:-2.5px}
.section-heading h2 em,.intro-grid h2 em{color:var(--ember)}
.section-heading>p{max-width:390px;color:var(--muted);font-size:18px;line-height:1.65}
.button{display:inline-flex;align-items:center;justify-content:center;gap:16px;min-height:52px;max-width:100%;padding:12px 24px;border:1px solid #ded4c5;border-radius:999px;color:var(--ink);background:var(--bg);font-size:16px;font-weight:550;line-height:1.35;text-align:center;white-space:normal;transition:background .25s,border-color .25s,box-shadow .25s,transform .25s}
.button:hover{background:#faf2e3;border-color:#cbb58d;box-shadow:0 5px 18px rgb(91 69 37 / 6%);transform:translateY(-1px)}
.button-primary{color:#fff;background:linear-gradient(115deg,#805b28,#926322);border-color:var(--ember)}
.button-primary:hover{color:#fff;background:linear-gradient(115deg,#6c4a1f,#785019);border-color:#6c4a1f;box-shadow:0 8px 24px rgb(139 91 32 / 16%)}
.button .arrow{flex:0 0 auto;font-size:22px;font-weight:400;line-height:1}
.inline-link{display:inline-flex;align-items:center;gap:12px;min-height:44px;margin-top:23px;color:var(--ember);font-size:17px;font-weight:500}
.inline-link:hover{text-decoration:underline;text-underline-offset:5px}

/* Hero: bold thought and luminous memory field. */
.hero{position:relative;padding-top:104px;padding-bottom:100px;overflow:hidden}
.hero-grid{position:relative;display:grid;grid-template-columns:1.12fr 1fr;gap:30px;align-items:center}
.hero h1{margin:26px 0 30px;font-size:clamp(62px,5.75vw,83px);line-height:1.06;font-weight:700;letter-spacing:-4px}
.hero h1 em{color:var(--ember);background:linear-gradient(110deg,#8b5b20 5%,#8d702e 96%);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero .full-name{max-width:570px;margin-bottom:16px;color:var(--ink);font-size:21px;font-weight:500;line-height:1.55;letter-spacing:-.3px}
.hero-copy>p{max-width:540px;color:var(--muted);font-size:18px;line-height:1.7}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:32px}
.hero-actions .button{min-height:56px;font-size:17px}
.status-line{display:flex;align-items:center;gap:9px;margin-top:25px;color:var(--dim);font-size:14px}
.status-line i{width:5px;height:5px;border-radius:50%;background:var(--mint)}
.hero-visual{position:relative;min-width:0;isolation:isolate}
.hero-visual:before{content:"";position:absolute;z-index:-1;inset:5% -2%;pointer-events:none;border-radius:50%;background:radial-gradient(ellipse at 45% 48%,rgb(247 225 176 / 30%) 0%,rgb(255 244 215 / 24%) 36%,transparent 72%)}
.hero-visual svg{width:100%;height:auto;overflow:visible}
.visual-caption{display:flex;justify-content:space-between;gap:12px;padding:0 24px;margin-top:-8px;color:var(--dim);font-size:11px;letter-spacing:.8px}
.visual-caption span:first-child{color:var(--ember)}
.hero-visual [fill="#101316"],.scenario-glyph [fill="#101316"]{fill:#fff}
.hero-visual [stroke="#efad79"],.scenario-glyph [stroke="#efad79"]{stroke:#a17b40}
.scenario-glyph [stroke="#a2c9bd"]{stroke:var(--mint)}
.scenario-glyph [stroke="#e78775"]{stroke:var(--coral)}
.scenario-glyph [stroke="#30363a"]{stroke:#d2c9ba}
.scenario-glyph [fill="#efad79"]{fill:#a17b40}
.scenario-glyph [fill="#e78775"]{fill:var(--coral)}

/* Metrics and the reasoning demonstration. */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);padding:34px 38px;border:1px solid #ece5d9;border-radius:var(--radius);background:var(--surface)}
.metric{padding:8px 28px}.metric:first-child{padding-left:0}.metric+.metric{border-left:1px solid #e1d8c8}
.metric-number{font-size:56px;font-weight:650;line-height:1.1;letter-spacing:-2px}
.metric-number span{margin-left:8px;color:var(--dim);font-size:13px}
.metric-label{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.5}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;align-items:start;gap:90px}
.intro-grid h2{margin-top:20px;font-size:62px;line-height:1.12;letter-spacing:-2.5px}
.intro-copy{color:var(--muted);font-size:18px;line-height:1.8}.intro-copy strong{color:var(--ink)}
.schematic{margin-top:54px;overflow:hidden;border:1px solid #e9e2d6;border-radius:var(--radius);background:var(--bg);box-shadow:var(--shadow)}
.schematic-top{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px 30px;border-bottom:1px solid var(--line)}
.schematic-label{color:var(--muted);font-size:13px;font-weight:500;letter-spacing:.3px}
.direction-tabs{display:flex;gap:4px;padding:5px;border:1px solid #e7dfd1;border-radius:999px;background:var(--surface)}
.direction-tabs button{min-height:44px;padding:9px 16px;border:0;border-radius:999px;color:var(--muted);background:transparent;font-size:16px;line-height:1.4}
.direction-tabs button[aria-selected=true]{color:var(--ink);background:var(--bg);box-shadow:0 2px 9px rgb(69 50 27 / 9%)}
.event-chain{display:grid;grid-template-columns:1fr 34px 1fr 34px 1fr;gap:16px;padding:38px 32px}
.event-cell{min-width:0}.event-tag{color:var(--dim);font-size:12px;font-weight:500;letter-spacing:.3px}
.event-cell h3{margin:14px 0 12px;font-size:24px;font-weight:600;line-height:1.3;letter-spacing:-.6px}
.event-cell p{color:var(--muted);font-size:16px;line-height:1.75}.event-cell.ember h3{color:var(--ember)}
.chain-arrow{display:flex;align-items:center;justify-content:center;color:#b9ac95;font-size:28px}
.direction-answer{display:flex;align-items:flex-start;gap:24px;margin:0 28px 28px;padding:26px;border-radius:18px;background:linear-gradient(115deg,#faf1de,#fcf6e9)}
.answer-tag{flex:0 0 112px;padding-top:3px;color:var(--ember);font-size:12px;font-weight:600;letter-spacing:.5px}
.direction-answer h4{font-size:19px;font-weight:600;line-height:1.5}
.direction-answer p{margin-top:9px;color:var(--muted);font-size:16px;line-height:1.7}
.schematic-note{margin-top:18px;color:var(--dim);font-size:13px;line-height:1.8}

/* Scenarios and original scientific figure content. */
.scenario-list{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.scenario{display:grid;grid-template-columns:34px 1fr 48px;align-items:start;gap:17px;padding:32px;border:1px solid #e9e2d6;border-radius:24px;background:var(--surface)}
.scenario-level{padding-top:4px;color:var(--ember);font-size:16px;font-weight:600}
.scenario h3{margin-bottom:12px;font-size:22px;line-height:1.35;letter-spacing:-.45px}
.scenario p{color:var(--muted);font-size:17px;line-height:1.7}
.scenario-glyph{width:48px;height:48px;margin-top:2px}
.figure-box{display:block;margin-top:52px;padding:20px;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 8px 36px rgb(69 50 27 / 3%)}
.figure-box.original-figure{background:#fff}.figure-box img{width:100%;height:auto}
.figure-caption{display:flex;justify-content:space-between;align-items:flex-start;gap:30px;margin-top:20px;color:var(--muted);font-size:14px;line-height:1.75}
.figure-caption span{max-width:950px}
.figure-caption a{display:inline-flex;align-items:center;flex:0 0 auto;min-height:44px;color:var(--ember);font-size:16px;font-weight:500;white-space:nowrap}
.figure-caption a:hover{text-decoration:underline;text-underline-offset:5px}
.protocol-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;margin-top:48px}
.protocol-item{padding-top:28px;border-top:1px solid var(--line)}
.protocol-item h3{margin-bottom:13px;font-size:21px;line-height:1.45;letter-spacing:-.35px}
.protocol-item p{color:var(--muted);font-size:17px;line-height:1.8}.protocol-item code{color:var(--ember)}

/* Results alternate ground, clear data hierarchy. */
.results-section{background:linear-gradient(115deg,#faf4e7,#fcf7eb 55%,#faf6ed)}
.findings-grid{display:grid;grid-template-columns:1fr 1fr;gap:78px;align-items:start}
.score-comparison{padding:36px;border:1px solid #e7dfd1;border-radius:var(--radius);background:var(--bg);box-shadow:var(--shadow)}
.score-comparison header{margin-bottom:30px;color:var(--dim);font-size:13px;font-weight:500}
.score-row{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:end;margin-top:27px}
.score-label{color:var(--muted);font-size:16px;line-height:1.5}
.score-row strong{font-size:40px;font-weight:600;line-height:1;letter-spacing:-1.6px}
.score-row strong span{font-size:18px;letter-spacing:0}
.score-bar{grid-column:1/-1;height:8px;margin-top:6px;overflow:hidden;border-radius:999px;background:var(--surface-2)}
.score-bar span{display:block;width:var(--value);height:100%;border-radius:inherit;background:linear-gradient(90deg,#d3ab67,#ddbf84);transform-origin:left center}
.score-row.human strong{color:var(--mint)}.score-row.human .score-bar span{background:linear-gradient(90deg,#ac9873,#c6b694)}.score-row.model strong{color:var(--ember)}
.score-row.average strong{color:#6f6656}.score-row.average .score-bar span{background:linear-gradient(90deg,#b8ac91,#d2c6aa)}
.comparison-note{margin-top:30px;color:var(--dim);font-size:14px;line-height:1.8}
.finding{padding:26px 0;border-top:1px solid #ded4c3}
.finding:first-child{padding-top:0;border-top:0}.finding:last-child{padding-bottom:0}
.finding h3{margin-bottom:13px;font-size:23px;line-height:1.4;letter-spacing:-.6px}
.finding p{color:var(--muted);font-size:17px;line-height:1.8}
.finding p[style]{font-size:15px!important}
.gain{color:var(--ember);font-size:inherit;font-weight:600}
.resources-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.resource{display:flex;flex-direction:column;align-items:flex-start;padding:30px;border:1px solid #ece5d9;border-radius:24px;background:var(--surface)}
.resource-top{display:flex;align-items:center;justify-content:space-between;width:100%;gap:15px;margin-bottom:28px;color:var(--dim);font-size:12px;font-weight:500;letter-spacing:.4px}
.resource-top svg{width:24px;height:24px;stroke:var(--ember)}
.resource h3{font-size:27px;line-height:1.3;letter-spacing:-.8px}
.resource p{flex:1;margin:16px 0 20px;color:var(--muted);font-size:17px;line-height:1.75}
.resource a{display:inline-flex;align-items:center;gap:12px;min-height:44px;color:var(--ember);font-size:16px;font-weight:500}
.resource a:hover{text-decoration:underline;text-underline-offset:5px}
.pending-badge{display:inline-flex;align-items:center;gap:8px;min-height:36px;padding:7px 12px;border:1px solid var(--line);border-radius:999px;color:var(--muted);background:var(--bg);font-size:13px}
.pending-badge:before{content:"";flex:0 0 5px;height:5px;border-radius:50%;background:var(--ember-glow)}
.site-footer{padding:44px 0;border-top:1px solid var(--line);background:#faf7f0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:32px}
.footer-brand{font-size:19px;font-weight:600;letter-spacing:-.4px}
.footer-brand p{margin-top:8px;color:var(--muted);font-size:14px;font-weight:400;letter-spacing:0}
.footer-links{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:24px;color:var(--muted);font-size:16px}
.footer-links a{display:inline-flex;align-items:center;min-height:44px}.footer-links a:hover{color:var(--ember)}
.footer-links>span{font-size:13px}.back-to-top{font-size:13px;letter-spacing:.4px}

/* Leaderboard: high contrast, readable controls, sticky model identity. */
.page-top{padding:70px 0 32px}
.leaderboard-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-top:20px}
.leaderboard-heading h1{font-size:65px;line-height:1.1;letter-spacing:-2.8px}
.leaderboard-heading h1 em{color:var(--ember)}
.leaderboard-heading p{max-width:760px;margin-top:19px;color:var(--muted);font-size:18px;line-height:1.7}
.leaderboard-summary{display:flex;flex-wrap:wrap;align-items:center;gap:26px;padding:27px 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:15px}
.leaderboard-summary strong{margin-right:5px;color:var(--ink);font-size:22px;font-weight:600;letter-spacing:-.6px}
.leaderboard-summary .summary-note{margin-left:auto;font-size:13px}
.board-panel{margin-bottom:44px}
.board-toolbar{display:flex;align-items:center;justify-content:space-between;gap:22px;margin:30px 0 22px}
.search-field{position:relative;flex:1;max-width:350px}
.search-field input{width:100%;min-height:54px;padding:13px 17px 13px 46px;border:1px solid #e0d6c6;border-radius:14px;color:var(--ink);background:var(--bg);font-size:16px;appearance:none;box-shadow:0 2px 6px rgb(69 50 27 / 2%)}
.search-field input::placeholder{color:#766b5c;opacity:1}
.search-icon{position:absolute;left:18px;top:50%;width:16px;height:16px;color:var(--dim);transform:translateY(-50%);pointer-events:none}
.filter-group{display:flex;gap:4px;padding:5px;border:1px solid #e7ded0;border-radius:16px;background:var(--surface)}
.filter-group button{min-height:44px;padding:9px 15px;border:0;border-radius:11px;color:var(--muted);background:transparent;font-size:16px;line-height:1.4;white-space:nowrap}
.filter-group button[aria-pressed=true]{color:var(--ink);background:var(--bg);box-shadow:0 2px 8px rgb(69 50 27 / 10%)}
.toolbar-status{color:var(--dim);font-size:14px;white-space:nowrap}
.table-wrap{overflow-x:auto;border:1px solid #e7ded0;border-radius:20px;background:var(--bg);scrollbar-color:#cbbb9d #faf6ec;box-shadow:0 8px 32px rgb(69 50 27 / 4%)}
.leaderboard-table{width:100%;min-width:1240px;table-layout:fixed;border-collapse:separate;border-spacing:0;text-align:right;font-size:16px;font-variant-numeric:tabular-nums}
.leaderboard-table thead th{padding:12px;border-bottom:1px solid #e7ded0;color:#665c4c;background:#faf6ec;font-weight:500;white-space:nowrap}
.leaderboard-table .column-groups th{padding:17px 12px;font-size:13px;font-weight:550;letter-spacing:.2px}
.leaderboard-table .column-groups .p-group{width:455px;border-left:1px solid var(--line);color:var(--ember)}
.leaderboard-table .column-groups .c-group{width:355px;border-left:1px solid var(--line);color:var(--mint)}
.leaderboard-table th.rank-cell{position:sticky;left:0;z-index:3;width:42px;text-align:center;color:var(--dim)}
.leaderboard-table th.model-cell{position:sticky;left:42px;z-index:2;width:266px;border-right:1px solid var(--line);text-align:left}
.leaderboard-table th[data-column=overall]{width:116px}
.leaderboard-table thead th.rank-cell,.leaderboard-table thead th.model-cell{z-index:5}
.leaderboard-table th button{display:inline-flex;align-items:center;justify-content:flex-end;gap:5px;min-height:44px;padding:0;border:0;color:inherit;background:transparent;font-size:16px;line-height:1.3}
.leaderboard-table .sort-mark{color:#887b67;font-size:13px}
.leaderboard-table th[aria-sort=descending] button,.leaderboard-table th[aria-sort=ascending] button,.leaderboard-table th[aria-sort=descending] .sort-mark,.leaderboard-table th[aria-sort=ascending] .sort-mark{color:var(--ember)}
.leaderboard-table tbody td,.leaderboard-table tbody th{padding:17px 12px;border-bottom:1px solid #ece5d9;color:#5a5143;background:var(--bg);font-weight:400}
.leaderboard-table tbody tr:nth-child(even) td,.leaderboard-table tbody tr:nth-child(even) th{background:#fcf9f2}
.leaderboard-table tbody tr:hover td,.leaderboard-table tbody tr:hover th{background:#faf0db}
.leaderboard-table tbody tr:last-child td,.leaderboard-table tbody tr:last-child th{border-bottom:0}
.leaderboard-table tbody th.model-cell{color:var(--ink);font-size:16px;font-weight:600;line-height:1.45;overflow-wrap:anywhere}
.leaderboard-table .model-class{display:block;margin-top:4px;color:#766b5c;font-size:10px;font-weight:450;line-height:1.4;letter-spacing:.4px}
.leaderboard-table .overall-cell{color:var(--ink);font-weight:650}
.leaderboard-table .p-start,.leaderboard-table .c-start{border-left:1px solid var(--line)}
.leaderboard-table .best{color:var(--ember);font-weight:700}
.leaderboard-table tbody tr.human-row td,.leaderboard-table tbody tr.human-row th{border-bottom:1px solid #dccdb0;color:var(--mint);background:#f8f3e8}
.leaderboard-table .human-row .model-class{color:#786b52}
.table-notes{display:flex;justify-content:space-between;align-items:flex-start;gap:36px;margin-top:22px;color:var(--muted);font-size:14px;line-height:1.8}
.table-notes p{max-width:890px}.table-notes .best-key{color:var(--ember);font-weight:600}.table-notes .rank-note{max-width:270px;color:var(--dim);font-size:13px}
.table-empty{padding:32px 24px;border:1px solid var(--line);border-radius:0 0 18px 18px;color:var(--muted);background:#faf7f0;font-size:16px;text-align:center}
.noscript-note{margin:22px 0;padding:18px 24px;border-radius:16px;color:var(--muted);background:var(--surface);font-size:16px}
.submission-banner{display:flex;justify-content:space-between;align-items:center;gap:36px;padding:34px 0 42px;border-top:1px solid var(--line)}
.submission-banner h3{font-size:23px;line-height:1.4;letter-spacing:-.5px}
.submission-banner p{max-width:840px;margin-top:12px;color:var(--muted);font-size:16px;line-height:1.8}
.board-details{padding:70px 0 100px;border-top:1px solid var(--line)}
.board-details .section-heading h2{font-size:46px}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px}
.detail-grid h3{margin-bottom:18px;font-size:22px;letter-spacing:-.4px}
.detail-grid p{color:var(--muted);font-size:17px;line-height:1.8}
.legend-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:25px}
.legend-item{padding-top:20px;border-top:1px solid var(--line);color:var(--muted);font-size:15px;line-height:1.7}
.legend-item strong{display:block;margin-bottom:10px;color:var(--ember);font-size:13px;font-weight:600}

/* Progressive motion: no-JS and reduced-motion stay fully visible. */
.reveal{opacity:1;transform:none;transition:opacity .9s ease,transform .9s cubic-bezier(.16,1,.3,1)}
.js-motion .reveal:not(.is-visible){opacity:0;transform:translateY(28px)}
.js-motion .reveal.is-visible{opacity:1;transform:none}
.js-motion .score-reveal span{transform:scaleX(0);transition:none}
.js-motion .score-reveal.score-visible span{transform:scaleX(1);transition:transform .55s cubic-bezier(.22,1,.36,1);transition-delay:var(--score-delay,0s)}

@media(max-width:1150px){
 :root{--gutter:38px}.nav-links{gap:21px}
 .hero{padding-top:82px;padding-bottom:82px}.hero h1{font-size:65px;letter-spacing:-3px}.hero-grid{gap:22px}
 .hero .full-name{font-size:19px}.hero-copy>p{font-size:17px}
 .hero-actions{gap:10px}.hero-actions .button{padding:12px 19px;font-size:16px}
 .section{padding:104px 0}.intro-grid,.findings-grid,.detail-grid{gap:48px}.intro-grid h2{font-size:53px}
 .scenario{grid-template-columns:28px 1fr;gap:14px;padding:28px}.scenario-glyph{display:none}
 .section-heading{gap:32px}.section-heading>p{max-width:330px;font-size:17px}
 .resource{padding:25px}.resource h3{font-size:25px}.resource p{font-size:16px}
 .board-toolbar{flex-wrap:wrap}.search-field{max-width:none;min-width:230px}.toolbar-status{flex-basis:100%}
}
@media(max-width:850px){
 :root{--gutter:30px;--nav-height:76px}.brand{font-size:21px}.mobile-nav-toggle{display:block}
 .nav-links{display:none;position:absolute;left:0;right:0;top:var(--nav-height);flex-wrap:wrap;justify-content:center;padding:18px 24px;border-bottom:1px solid var(--line);background:rgb(255 253 249 / 98%);box-shadow:0 12px 24px rgb(69 50 27 / 5%)}
 .nav-links.is-open{display:flex}.nav-links a:is([aria-current=page],[aria-current=location]):after{bottom:2px}
 .hero{padding-top:70px;padding-bottom:72px}.hero-grid{grid-template-columns:1fr;gap:34px}.hero-copy{max-width:650px}
 .hero h1{font-size:74px}.hero .full-name{max-width:630px;font-size:21px}.hero-copy>p{max-width:590px;font-size:18px}
 .hero-visual{width:min(100%,580px);margin:0 auto}.hero-actions .button{font-size:17px}
 .metric{padding:7px 19px}.metrics{padding:28px}.metric-number{font-size:46px}.metric-label{font-size:14px}
 .section{padding:92px 0}.intro-grid{grid-template-columns:1fr;gap:32px}.intro-grid h2{font-size:55px}.intro-copy{max-width:680px}
 .section-heading{display:block}.section-heading h2{font-size:49px}.section-heading>p{max-width:650px;margin-top:26px;font-size:18px}
 .section-heading>.button,.section-heading>.inline-link{margin-top:28px}
 .schematic-top{display:block}.direction-tabs{display:inline-flex;margin-top:20px}
 .event-chain{grid-template-columns:1fr;gap:25px;padding:32px}.event-cell{padding-bottom:24px;border-bottom:1px solid var(--line)}
 .event-cell:last-child{padding-bottom:0;border-bottom:0}.chain-arrow{display:none}
 .scenario{padding:25px}.scenario h3{font-size:21px}.scenario p{font-size:16px}.protocol-grid{gap:38px}
 .findings-grid{grid-template-columns:1fr;gap:36px}.score-comparison{max-width:620px}
 .resources-grid{grid-template-columns:1fr;gap:22px}.resource{padding:32px}.resource p{font-size:17px}.resource-top{margin-bottom:22px}
 .figure-caption{display:block}.figure-caption a{margin-top:12px}
 .footer-inner{display:block}.footer-links{justify-content:flex-start;margin-top:22px}
 .leaderboard-heading{display:block}.leaderboard-heading h1{font-size:58px}.leaderboard-heading .button{margin-top:25px}
 .board-toolbar{gap:15px}.search-field{flex-basis:100%}.filter-group{width:100%}.filter-group button{flex:1}
 .table-notes{display:block}.table-notes .rank-note{max-width:none;margin-top:12px}
 .submission-banner{display:block}.submission-banner .button{margin-top:24px}.detail-grid{grid-template-columns:1fr;gap:38px}
}
@media(max-width:600px){
 :root{--gutter:21px;--radius:22px;--nav-height:74px}html{scroll-padding-top:94px}
 .nav{gap:12px}.brand{gap:10px;font-size:19px;letter-spacing:-.6px}.brand img{width:32px;height:32px}
 .mobile-nav-toggle{padding:8px 12px}.nav-links{gap:9px 24px;padding:18px 20px}.eyebrow{font-size:13px}
 .hero{padding-top:58px;padding-bottom:64px}.hero h1{margin:23px 0 26px;font-size:54px;letter-spacing:-2.3px;line-height:1.08}
 .hero .full-name{font-size:19px}.hero-copy>p{font-size:17px}.hero-grid{gap:30px}
 .hero-actions{display:grid;grid-template-columns:1fr;gap:12px}.hero-actions .button{width:100%;min-height:54px;padding:12px 17px;font-size:16px}
 .hero-visual{width:100%}.visual-caption{gap:10px;padding:0 5px;font-size:9px;letter-spacing:.5px}.status-line{font-size:13px}
 .metrics{grid-template-columns:repeat(2,1fr);padding:8px 20px}.metric{padding:24px 0}.metric:first-child{padding-left:0}
 .metric+.metric{border-left:0}.metric:nth-child(even){padding-left:22px;border-left:1px solid #e2d9c9}.metric:nth-child(n+3){border-top:1px solid #e2d9c9}
 .metric-number{font-size:48px}.metric-label{font-size:14px}
 .section{padding:78px 0}.section-index{font-size:12px}.section-heading{margin-bottom:34px}
 .section-heading h2,.intro-grid h2{font-size:43px;letter-spacing:-1.8px}.section-heading>p,.intro-copy{font-size:17px}
 .schematic{margin-top:34px}.schematic-top{padding:23px 21px}.schematic-label{font-size:12px;line-height:1.7}
 .direction-tabs{display:grid;grid-template-columns:1fr;width:100%;border-radius:16px}.direction-tabs button{min-height:46px;border-radius:11px;font-size:16px}
 .event-chain{gap:24px;padding:25px 22px}.event-cell h3{font-size:23px}.event-cell p{font-size:16px}
 .direction-answer{display:block;margin:0 16px 18px;padding:23px 20px}.answer-tag{margin-bottom:13px;padding:0}
 .direction-answer h4{font-size:18px}.direction-answer p{font-size:16px}.schematic-note{font-size:12px}
 .scenario-list{grid-template-columns:1fr;gap:16px}.scenario{grid-template-columns:27px 1fr;gap:14px;padding:26px 23px;border-radius:20px}
 .scenario h3{font-size:22px}.scenario p{font-size:16px}.scenario-level{font-size:15px}
 .figure-box{margin-top:34px;padding:10px;border-radius:20px}.figure-caption{margin-top:18px;font-size:13px}.figure-caption a{font-size:16px}
 .protocol-grid{grid-template-columns:1fr;gap:29px;margin-top:33px}.protocol-item{padding-top:22px}.protocol-item h3{font-size:20px}.protocol-item p{font-size:16px}
 .score-comparison{padding:28px 23px}.score-comparison header{font-size:12px}.score-label{font-size:15px}.score-row strong{font-size:34px}.comparison-note{font-size:13px}
 .finding h3{font-size:22px}.finding p{font-size:16px}.resource{padding:28px 24px;border-radius:22px}.resource h3{font-size:27px}.resource p{font-size:16px}.resource a{font-size:16px}
 .pending-badge{font-size:12px}.site-footer{padding:36px 0}.footer-links{gap:13px 22px}.footer-brand p{font-size:13px}
 .page-top{padding-top:48px;padding-bottom:27px}.leaderboard-heading{margin-top:20px}.leaderboard-heading h1{font-size:47px;letter-spacing:-2px}.leaderboard-heading p{font-size:17px}
 .leaderboard-summary{gap:16px 21px;padding:22px 0;font-size:14px}.leaderboard-summary strong{font-size:20px}.leaderboard-summary .summary-note{width:100%;margin-left:0}
 .board-toolbar{margin:23px 0 18px;gap:13px}.filter-group{display:grid;grid-template-columns:1fr 1fr;gap:4px}
 .filter-group button{min-width:0;padding:9px 8px;font-size:16px}.filter-group button:first-child{grid-column:1/-1}.toolbar-status{font-size:13px}
 .table-wrap{border-radius:16px}.leaderboard-table{width:1080px;min-width:1080px}
 .leaderboard-table th.rank-cell{width:28px}.leaderboard-table th.model-cell{left:28px;width:150px}.leaderboard-table th[data-column=overall]{width:95px}
 .leaderboard-table .column-groups .p-group{width:450px}.leaderboard-table .column-groups .c-group{width:357px}
 .leaderboard-table tbody td,.leaderboard-table tbody th{padding:16px 9px}.leaderboard-table thead th{padding:12px 9px}
 .leaderboard-table .column-groups th{padding:15px 9px;font-size:12px}.leaderboard-table tbody th.model-cell{font-size:14px}
 .leaderboard-table .model-class{font-size:9px}.leaderboard-table th button{font-size:16px}
 .table-notes{font-size:13px}.table-notes .rank-note{font-size:12px}.board-panel{margin-bottom:34px}
 .submission-banner{padding:26px 0 34px}.submission-banner h3{font-size:22px}.submission-banner p{font-size:16px}
 .board-details{padding-top:52px;padding-bottom:70px}.board-details .section-heading h2{font-size:39px}
 .detail-grid h3{font-size:21px}.detail-grid p{font-size:16px}.legend-list{gap:19px}.legend-item{font-size:14px}.legend-item strong{font-size:12px}
}
@media(max-width:360px){
 :root{--gutter:20px}.brand{gap:8px;font-size:18px}.brand img{width:30px;height:30px}
 .hero h1{font-size:46px;letter-spacing:-1.9px}.section-heading h2,.intro-grid h2{font-size:38px}.leaderboard-heading h1{font-size:40px;letter-spacing:-1.7px}
 .metric-number{font-size:42px}.metrics{padding:6px 16px}.metric:nth-child(even){padding-left:17px}.metric-label{font-size:13px}
 .scenario{padding:25px 19px}.scenario h3{font-size:20px}.score-comparison{padding:26px 20px}.score-row strong{font-size:30px}
 .filter-group button{padding-right:5px;padding-left:5px}
}
@media(prefers-reduced-motion:reduce){
 html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}
 .reveal,.js-motion .reveal,.js-motion .reveal:not(.is-visible),.js-motion .score-reveal{opacity:1!important;transform:none!important}
 .js-motion .score-reveal span{transform:none!important}
}

/* Research masthead: title, compact byline, and official institution marks. */
.research-team{padding-top:66px;padding-bottom:58px;text-align:center}
.research-team header{margin-bottom:27px}
.research-name{margin:0 0 19px;font-size:clamp(42px,4.4vw,62px);font-weight:700;line-height:1.1;letter-spacing:-2.5px;color:var(--ink)}
.research-team #team-heading{max-width:1000px;margin:0 auto;font-size:29px;font-weight:550;line-height:1.4;letter-spacing:-.65px;color:var(--ink)}
.author-list{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:center;gap:11px 24px;max-width:1050px;margin:0 auto;padding:0;list-style:none}
.author-list li{white-space:nowrap;font-size:22px;line-height:1.6}
.author-name{color:var(--ink);font-weight:500;letter-spacing:-.3px}
.author-list sup{margin-left:3px;color:var(--ember);font-size:13px;font-weight:600;line-height:0}
.affiliation-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;max-width:1100px;margin:32px auto 0}
.institution{display:flex;flex-direction:column;align-items:center;gap:13px;padding:0 10px;color:var(--ink);text-decoration:none}
.institution-mark{display:flex;align-items:center;justify-content:center;width:100%;height:100px}
.institution-mark picture{display:contents}
.institution-mark img{width:auto;max-width:100%;height:auto;max-height:100%;object-fit:contain}
/* Show only the official PNG's 101×102 seal region using its native alpha. */
.institution-tsinghua .institution-seal{--seal-size:76px;display:block;flex:0 0 auto;width:var(--seal-size);height:calc(var(--seal-size)*1.00990099);background:#660874;-webkit-mask-image:url("../institutions/tsinghua-mask.png");mask-image:url("../institutions/tsinghua-mask.png");-webkit-mask-size:calc(var(--seal-size)*2.98019802) calc(var(--seal-size)*1.88118812);mask-size:calc(var(--seal-size)*2.98019802) calc(var(--seal-size)*1.88118812);-webkit-mask-position:left top;mask-position:left top;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat}
.institution-hku .institution-mark img{width:265px}
.institution-baai .institution-mark img{width:190px}
.affiliation-list p{margin:0;color:var(--ink);font-size:22px;font-weight:500;line-height:1.45;letter-spacing:-.25px}
.affiliation-list sup{margin-right:4px;color:var(--ember);font-size:13px;font-weight:600;line-height:0}
.institution:hover p{color:var(--ember)}
.author-notes{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px 24px;margin-top:14px;color:var(--muted);font-size:16px;line-height:1.5}
.author-notes span{display:inline-flex;align-items:baseline;gap:6px}
.author-notes sup{color:var(--ember);font-size:13px;font-weight:600}
.research-team+.hero{padding-top:48px}
@media(max-width:850px){
 .research-team{padding-top:50px;padding-bottom:42px}
 .research-team #team-heading{font-size:25px}.research-title-break{display:none}
 .author-list{max-width:670px;gap:10px 22px}.author-list li{font-size:21px}
 .affiliation-list{gap:14px;margin-top:25px}.institution{padding:0 3px}
 .affiliation-list p{font-size:19px}.institution-mark{height:85px}
 .institution-baai .institution-mark img{width:150px}
 .research-team+.hero{padding-top:38px}
}
@media(max-width:600px){
 .research-team{padding-top:40px;padding-bottom:32px}.research-name{font-size:42px;letter-spacing:-1.8px;margin-bottom:17px}
 .research-team header{margin-bottom:24px}.research-team #team-heading{font-size:23px;line-height:1.45;letter-spacing:-.4px}
 .author-list{gap:9px 19px}.author-list li{font-size:19px;line-height:1.65}.author-list sup{font-size:12px}
 .author-notes{gap:7px 19px;margin-top:17px;font-size:15px}
 .affiliation-list{grid-template-columns:1fr;gap:21px;max-width:340px;margin-top:30px}
 .institution{flex-direction:row;justify-content:flex-start;gap:19px;padding:0;text-align:left}
 .institution-mark{width:112px;height:65px;flex:0 0 112px}
 .institution-tsinghua .institution-seal{--seal-size:49px}
 .institution-hku .institution-mark img{width:52px}.institution-baai .institution-mark img{width:100px}
 .affiliation-list p{font-size:18px;font-weight:550;line-height:1.4}.affiliation-list sup{font-size:12px}
 .research-team+.hero{padding-top:36px}
}
@media(max-width:360px){
 .research-team #team-heading{font-size:21px}.research-name{font-size:37px}
 .author-list{gap:9px 13px}.author-list li{font-size:18px}
 .institution{gap:15px}.institution-mark{width:92px;flex-basis:92px}
 .institution-baai .institution-mark img{width:90px}
 .affiliation-list p{font-size:18px}
}