:root {
  color-scheme: light;
  --ink: #18323a;
  --muted: #52666a;
  --line: #d7e1df;
  --teal: #087b72;
  --teal-dark: #075f59;
  --coral: #c65a3d;
  --paper: #ffffff;
  --mist: #f2f8f5;
  --blue: #335f86;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; line-height: 1.55; }
button, input, select { font: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--teal-dark); }
img { max-width: 100%; }
::selection { background: #b8e7da; color: #102a30; }
:focus-visible { outline: 3px solid #1a9690; outline-offset: 3px; }
.shell { width: min(100% - 64px, 1320px); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; top: -80px; left: 16px; z-index: 30; background: var(--ink); color: white; padding: 10px 14px; }
.skip-link:focus { top: 12px; }

.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255, 255, 255, .96); border-bottom: 1px solid var(--line); backdrop-filter: blur(10px); }
.header-inner { display: flex; align-items: center; min-height: 66px; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 1px; font-size: 21px; font-weight: 760; line-height: 1; white-space: nowrap; }
.brand span:last-child { color: var(--teal); }
.brand-image { display: block; width: 37px; height: 34px; margin-right: 7px; object-fit: contain; }
.site-nav { display: flex; align-items: center; gap: 29px; margin-left: auto; font-size: 13px; font-weight: 650; }
.site-nav a { color: #486067; padding-block: 23px; white-space: nowrap; }
.site-nav a:hover { color: var(--teal); }
.site-nav .language-switch { display: inline-flex; align-items: center; gap: 5px; padding: 5px 9px; border: 1px solid #afc9c1; border-radius: 4px; color: var(--teal-dark); line-height: 1.2; }
.language-switch span { color: var(--muted); font-size: 11px; font-weight: 450; }
.site-nav .language-switch:hover { background: #e7f4ef; }
.header-code { color: var(--teal-dark); border-left: 1px solid var(--line); padding-left: 26px; font-size: 13px; font-weight: 720; white-space: nowrap; }
.header-code span, .source-link span, .button span, .text-link span, .access-links span { margin-left: 2px; }

.hero { background: #f5faf8; border-bottom: 1px solid #e1ebe7; }
.hero-inner { display: flex; flex-direction: column; align-items: center; padding-block: 30px 32px; text-align: center; }
.section-kicker { margin: 0; color: var(--teal-dark); font-size: 12px; font-weight: 760; text-transform: uppercase; }
.hero h1 { margin: 0 0 8px; line-height: 0; }
.hero-logo { display: block; width: 188px; height: auto; mix-blend-mode: multiply; }
.paper-title { max-width: 880px; margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(21px, 2.65vw, 31px); line-height: 1.23; color: #243f49; }
.hero-description { max-width: 850px; margin: 13px 0 0; font-size: 15px; color: var(--muted); }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 11px; flex-wrap: wrap; margin-top: 20px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 40px; padding: 8px 14px; border: 1px solid transparent; border-radius: 5px; font-size: 13px; font-weight: 730; line-height: 1.2; white-space: nowrap; transition: background .18s, border-color .18s, color .18s; }
.button-icon { display: block; width: 18px; height: 18px; flex: none; }
.button-primary .button-icon { filter: brightness(0) invert(1); }
.button-primary .button-icon-color { filter: none; }
.button-primary { background: var(--teal-dark); color: white; }
.button-primary:hover { background: #064e49; color: white; }
.button-outline { background: white; border-color: #afc9c1; color: var(--teal-dark); }
.button-outline:hover { background: #e7f4ef; border-color: var(--teal); }
.button-eval { background: #244a5a; border-color: #244a5a; color: white; }
.button-eval:hover { background: #183b4b; border-color: #183b4b; color: white; }
.button-link { color: var(--teal-dark); padding-inline: 10px; }
.button-link:hover { background: #e2f2ea; }
.authors { display: flex; flex-wrap: wrap; justify-content: center; column-gap: 15px; row-gap: 1px; max-width: 1080px; margin: 22px 0 0; color: #304d54; font-size: 15.5px; font-weight: 620; line-height: 1.55; }
.authors span { white-space: nowrap; }
.authors .corresponding-icon { display: inline-block; margin-left: 3px; color: var(--teal-dark); font-size: .9em; line-height: 1; vertical-align: super; }
.authors sup, .author-affiliations sup { margin-left: 2px; font-size: .68em; line-height: 0; }
.author-affiliations { display: flex; flex-wrap: wrap; justify-content: center; gap: 3px 20px; max-width: 1100px; margin: 9px 0 0; color: #52666a; font-size: 12px; line-height: 1.5; }
.author-note { margin: 2px 0 0; color: #738487; font-size: 11px; }
.affiliations { display: grid; grid-template-columns: minmax(0, 1fr) 1px minmax(0, 1fr); align-items: center; gap: 20px; width: min(100%, 760px); margin-top: 12px; }
.affiliation { display: inline-flex; align-items: center; justify-self: center; gap: 8px; min-height: 42px; }
.affiliation img { display: block; flex: 0 0 42px; width: 42px; height: 42px; object-fit: contain; mix-blend-mode: multiply; }
.affiliation-zju span { color: #27435a; font-size: 12px; font-weight: 700; }
.affiliation-zju span { max-width: 300px; text-align: left; line-height: 1.3; }
.affiliation-divider { height: 25px; border-left: 1px solid #c5d7d0; }
.affiliation-sahzu span { max-width: 310px; color: #27435a; font-size: 12px; font-weight: 700; line-height: 1.3; text-align: left; }

.facts-band { background: #fff; border-bottom: 1px solid var(--line); }
.facts-grid { display: grid; grid-template-columns: repeat(3, 1fr); padding-block: 20px; }
.fact { display: flex; align-items: baseline; gap: 12px; min-width: 0; padding-inline: 25px; border-left: 1px solid var(--line); }
.fact:first-child { padding-left: 0; border-left: 0; }
.fact-value { color: #164e55; font-size: 30px; font-weight: 760; line-height: 1; white-space: nowrap; }
.fact-value small { font-size: 19px; }
.fact-label { color: var(--muted); font-size: 12px; line-height: 1.25; }

.section { scroll-margin-top: 78px; }
.leaderboard-section { padding-block: 51px 69px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 27px; }
.section-heading h2, .findings-section h2, .eval-section h2, .access-section h2, .citation-section h2 { margin: 7px 0 0; font-size: clamp(25px, 2.5vw, 32px); line-height: 1.16; font-weight: 730; }
.section-intro { max-width: 710px; margin: 9px 0 0; color: var(--muted); font-size: 14px; }
.source-link { color: var(--teal-dark); font-size: 12px; font-weight: 720; white-space: nowrap; padding-bottom: 3px; }
.leaderboard-controls { border-top: 1px solid var(--line); }
.tabs { display: flex; gap: 8px; overflow-x: auto; padding-top: 14px; border-bottom: 1px solid var(--line); }
.tab { position: relative; display: flex; align-items: center; gap: 8px; flex: 0 0 auto; min-height: 43px; padding: 4px 12px 11px; background: transparent; border: 0; color: #5b6e73; font-size: 13px; font-weight: 690; white-space: nowrap; }
.tab span { padding: 1px 5px; background: #edf2f0; border-radius: 3px; color: #667a7d; font-size: 10px; }
.tab[aria-selected="true"] { color: var(--teal-dark); }
.tab[aria-selected="true"]::after { content: ""; position: absolute; bottom: -1px; left: 0; right: 0; height: 3px; background: var(--teal); }
.tab[aria-selected="true"] span { color: var(--teal-dark); background: #dcefe8; }
.filters { display: flex; align-items: end; gap: 12px; flex-wrap: wrap; padding-block: 18px 12px; }
.field { display: flex; flex-direction: column; gap: 5px; color: #53676a; font-size: 11px; font-weight: 720; }
.field input, .field select { width: 215px; height: 36px; padding: 6px 10px; border: 1px solid #c6d6d1; border-radius: 4px; outline: none; background: white; color: var(--ink); font-size: 13px; font-weight: 450; }
.field input:focus, .field select:focus { border-color: var(--teal); box-shadow: 0 0 0 3px #d5eee6; }
.field select { width: 190px; }
.table-meta { display: flex; align-items: baseline; justify-content: space-between; gap: 18px; margin-bottom: 10px; color: var(--muted); font-size: 12px; }
.table-meta p { margin: 0; }
.table-meta p:last-child { white-space: nowrap; font-weight: 720; color: #33565b; }
.table-scroll { overflow-x: auto; border-top: 2px solid #2e4f53; border-bottom: 1px solid #aac0b9; scrollbar-color: #aac7bd #f0f5f2; }
table { width: 100%; min-width: 1100px; border-collapse: collapse; font-variant-numeric: tabular-nums; }
thead { background: #f5f8f7; }
th, td { border-bottom: 1px solid #e2eae7; }
thead .group-row th { padding: 10px 13px 7px; border-bottom: 1px solid #ccdad5; color: #52706c; font-size: 11px; font-weight: 750; text-align: center; text-transform: uppercase; }
thead .group-row th:first-child { text-align: left; }
thead .metric-row th { padding: 0; color: #38545a; font-size: 11px; font-weight: 700; text-align: right; vertical-align: bottom; }
.sort-button { display: flex; flex-direction: column; align-items: flex-end; width: 100%; min-width: 96px; min-height: 54px; padding: 9px 11px; border: 0; background: none; color: inherit; text-align: right; line-height: 1.22; }
.sort-button:hover { background: #e5f1eb; color: #075f59; }
.sort-button .sort-label { white-space: nowrap; }
.sort-button .sort-unit { margin-top: 4px; color: #6b7e80; font-size: 10px; font-weight: 570; }
.sort-button .sort-arrow { margin-left: 2px; color: #6a8684; }
.sort-button.active { color: #006f64; background: #e7f4ee; }
.sort-button.active .sort-arrow { color: #007a6e; }
tbody th { color: var(--ink); font-size: 12.5px; font-weight: 700; text-align: left; }
tbody td { text-align: right; font-size: 12.5px; color: #345057; }
tbody th, tbody td { padding: 10px 12px; }
tbody tr:hover { background: #f3f9f5; }
thead .group-row th:first-child, tbody th:first-child { position: sticky; left: 0; z-index: 1; min-width: 210px; max-width: 250px; background: #fff; box-shadow: 1px 0 0 #dce6e1; }
thead .group-row th:first-child { z-index: 3; background: #f5f8f7; }
tbody tr:hover th:first-child { background: #f3f9f5; }
.model-name { display: block; overflow-wrap: anywhere; }
.model-category { display: block; margin-top: 2px; color: #75908b; font-size: 10px; font-weight: 580; }
.best-value { color: #075f59; font-weight: 780; }
.empty-row td { padding: 32px; text-align: center; color: var(--muted); }
.table-footnote { max-width: 940px; margin: 12px 0 0; color: #647679; font-size: 11.5px; }

.benchmark-section { padding-block: 68px 77px; border-top: 1px solid var(--line); }
.narrow-heading { margin-bottom: 27px; }
.level-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.level { padding: 25px 25px 26px; border-left: 1px solid var(--line); }
.level:first-child { padding-left: 0; border-left: 0; }
.level-number { margin: 0 0 11px; color: var(--coral); font-size: 11px; font-weight: 780; text-transform: uppercase; }
.level h3 { margin: 0 0 10px; font-size: 17px; line-height: 1.22; }
.level p:not(.level-number) { min-height: 79px; margin: 0; color: var(--muted); font-size: 13px; }
.level-count { display: block; margin-top: 15px; color: var(--teal-dark); font-size: 11.5px; font-weight: 730; }
.overview-figure { margin: 34px 0 0; }
.overview-figure > a { display: block; border: 1px solid #dfe8e5; background: white; }
.overview-figure img { display: block; width: 100%; height: auto; }
.overview-figure figcaption { display: flex; justify-content: space-between; gap: 12px; margin-top: 9px; color: #6a7a7e; font-size: 11px; }
.overview-figure figcaption a { color: var(--teal-dark); font-weight: 710; white-space: nowrap; }

.findings-section { padding-block: 62px 70px; background: #eaf4ef; }
.findings-section h2 { margin-bottom: 27px; }
.findings-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid #bcd5c7; }
.finding { padding: 26px 25px 0; border-left: 1px solid #bcd5c7; }
.finding:first-child { padding-left: 0; border-left: 0; }
.finding-number { display: block; color: #174c52; font-size: 35px; font-weight: 760; line-height: 1.1; }
.finding-unit { font-size: 18px; }
.finding h3 { margin: 12px 0 5px; font-size: 15px; }
.finding p { max-width: 330px; margin: 0; color: #4d6263; font-size: 12.5px; }
.case-study-figure { max-width: 1040px; margin: 40px auto 0; }
.case-study-scroll { overflow-x: auto; background: white; scrollbar-color: #aac7bd #f0f5f2; }
.case-study-scroll a { display: block; }
.case-study-scroll img { display: block; width: 100%; min-width: 680px; height: auto; }
.case-study-figure figcaption { display: flex; justify-content: space-between; gap: 16px; margin-top: 10px; color: var(--muted); font-size: 12px; }
.case-study-figure figcaption a { color: var(--teal-dark); font-weight: 700; white-space: nowrap; }
html[lang="zh-CN"] body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; }
html[lang="zh-CN"] .paper-title { font-family: "Songti SC", "Noto Serif CJK SC", Georgia, serif; }

.eval-section { padding-block: 76px; }
.eval-layout { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(270px, .65fr); gap: 9%; align-items: start; }
.eval-layout p:not(.section-kicker) { max-width: 610px; margin: 16px 0 14px; color: var(--muted); font-size: 14px; }
.text-link { color: var(--teal-dark); font-size: 12px; font-weight: 750; }
.eval-dimensions { display: grid; border-top: 2px solid var(--teal); }
.eval-dimensions span { display: flex; justify-content: space-between; gap: 10px; padding: 10px 2px; border-bottom: 1px solid var(--line); color: #335459; font-size: 13px; font-weight: 640; }
.eval-dimensions small { color: #7a8d8f; font-size: 10px; font-weight: 580; white-space: nowrap; }

.access-section { padding-block: 62px 68px; background: #f6f8f6; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.access-layout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(230px, .6fr); gap: 8%; }
.access-section h2 { max-width: 730px; }
.access-section p:not(.section-kicker) { max-width: 750px; margin: 15px 0 0; color: var(--muted); font-size: 13.5px; }
.access-links { align-self: center; border-top: 1px solid #bed2c9; }
.access-links a { display: flex; justify-content: space-between; padding: 13px 0; border-bottom: 1px solid #bed2c9; color: var(--teal-dark); font-size: 13px; font-weight: 730; }

.citation-section { padding-block: 63px 72px; }
.citation-heading { display: flex; align-items: end; justify-content: space-between; gap: 14px; margin-bottom: 16px; }
.citation-section pre { overflow-x: auto; margin: 0; padding: 19px 21px; border: 1px solid #d9e5df; border-radius: 5px; background: #f6f9f7; color: #23414a; font-size: 12px; line-height: 1.6; }
.site-footer { background: #19373d; color: #eaf4f0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-block: 27px; }
.footer-inner strong { font-size: 17px; }
.footer-inner p { margin: 5px 0 0; color: #c9dad7; font-size: 11.5px; }
.footer-inner a { color: #e8faf3; font-size: 12px; font-weight: 700; white-space: nowrap; }

@media (max-width: 920px) {
  .shell { width: min(100% - 40px, 1320px); }
  .site-nav { gap: 16px; }
  .fact { display: block; }
  .fact-label { display: block; margin-top: 5px; }
  .level p:not(.level-number) { min-height: 120px; }
  .level { padding-inline: 18px; }
}

@media (max-width: 720px) {
  .section, .sort-button { scroll-margin-top: 110px; }
  .shell { width: min(100% - 32px, 1320px); }
  .header-inner { display: grid; grid-template-columns: 1fr auto; gap: 0 12px; padding-top: 13px; }
  .brand { font-size: 20px; }
  .site-nav { grid-column: 1 / -1; grid-row: 2; justify-content: space-between; gap: 8px; overflow-x: auto; margin: 0; }
  .site-nav a { padding-block: 12px; }
  .header-code { grid-column: 2; grid-row: 1; border-left: 0; padding: 0; }
  .hero-inner { padding-block: 18px; }
  .hero-logo { width: 145px; }
  .paper-title { max-width: 590px; }
  .hero-description { font-size: 13.5px; line-height: 1.45; }
  .hero-actions { margin-top: 16px; }
  .authors { column-gap: 11px; margin-top: 16px; font-size: 13.5px; }
  .author-affiliations { font-size: 11px; }
  .affiliations { display: flex; flex-direction: column; gap: 7px; width: auto; margin-top: 8px; }
  .affiliation-divider { display: none; }
  .affiliation-sahzu span { max-width: 240px; }
  .facts-grid { padding-block: 16px; }
  .fact { padding-inline: 12px; }
  .fact-value { font-size: 25px; }
  .fact-value small { font-size: 15px; }
  .fact-label { font-size: 10px; }
  .leaderboard-section, .benchmark-section, .eval-section, .citation-section { padding-block: 48px; }
  .section-heading { display: block; }
  .source-link { display: inline-block; margin-top: 13px; }
  .level-grid, .findings-grid { grid-template-columns: 1fr; }
  .level, .finding { padding: 19px 0; border-left: 0; border-top: 1px solid var(--line); }
  .level:first-child, .finding:first-child { border-top: 0; }
  .level p:not(.level-number) { min-height: 0; }
  .findings-section { padding-block: 47px; }
  .finding { padding-bottom: 0; }
  .finding p { max-width: none; }
  .eval-layout, .access-layout { grid-template-columns: 1fr; gap: 27px; }
  .access-section { padding-block: 48px; }
  .overview-figure figcaption { display: block; }
  .overview-figure figcaption a { display: block; margin-top: 5px; }
  .case-study-figure figcaption { display: block; }
  .case-study-figure figcaption a { display: inline-block; margin-top: 5px; }
}

@media (max-width: 480px) {
  thead .group-row th:first-child, tbody th:first-child { position: static; min-width: 140px; max-width: 165px; }
  .paper-title { font-size: 21px; }
  .hero-actions { gap: 7px; }
  .button { min-height: 37px; font-size: 12px; }
  .facts-grid { grid-template-columns: 1fr; gap: 10px; }
  .fact, .fact:first-child { display: flex; align-items: baseline; gap: 10px; padding: 0; border: 0; }
  .fact-label { margin: 0; }
  .filters { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
  .field input, .field select { width: 100%; min-width: 0; }
  .table-meta { display: block; }
  .table-meta p:last-child { margin-top: 3px; }
  .citation-heading { align-items: start; }
  .footer-inner { display: block; }
  .footer-inner a { display: inline-block; margin-top: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}

/* Clinical reading flow: brief tasks, readable case, then results and evidence. */
.shell { width: min(100% - 64px, 1200px); }
.hero-inner { padding-block: 36px 28px; }
.hero { scroll-margin-top: 78px; }
.hero-logo { width: 142px; }
.hero-description { max-width: 780px; font-size: 16px; line-height: 1.8; }
.research-label { max-width: 800px; margin: 16px 0 0; padding: 7px 14px; border: 1px solid #c6dcd4; border-radius: 30px; background: #e9f4ef; color: #315b54; font-size: 12px; line-height: 1.7; }
.institution-label { margin: 24px 0 0; color: var(--muted); font-size: 11px; letter-spacing: .05em; }
.affiliations { margin-top: 7px; }
.fact-label { font-size: 13px; }
.fact-label small { display: block; margin-top: 4px; color: var(--muted); font-size: 11px; font-weight: 400; }
.section { padding-block: 60px; }
.section-heading h2 { line-height: 1.35; }
.section-intro { font-size: 15px; line-height: 1.85; }
.section-heading .text-link { flex: none; }
.level-grid { gap: 16px; border: 0; }
.level, .level:first-child { padding: 24px; border: 1px solid var(--line); border-radius: 10px; background: #fbfdfc; }
.level h3 { min-height: 44px; font-size: 18px; line-height: 1.45; }
.level p.level-subtitle { min-height: 0; margin: 5px 0 20px; color: var(--teal-dark); font-weight: 650; }
.task-flow { margin: 0; font-size: 13px; }
.task-flow dt { margin-top: 14px; color: #3d5f59; font-size: 11px; font-weight: 750; }
.task-flow dd { margin: 3px 0 0; color: var(--muted); line-height: 1.8; }
.level-count { border-top: 1px solid var(--line); padding-top: 14px; margin-top: 20px; }
.technical-details, .metric-guide { margin-top: 24px; border: 1px solid var(--line); border-radius: 8px; background: white; }
summary { padding: 16px 20px; cursor: pointer; color: var(--teal-dark); font-size: 14px; font-weight: 650; }
summary:hover { background: #f0f7f3; }
.technical-details .overview-figure, .technical-details .case-study-figure { margin: 0; padding: 0 20px 20px; }
.case-section { background: #f4f8f6; border-block: 1px solid var(--line); }
.replay-note { margin: 0 0 26px; padding: 16px 20px; border-left: 3px solid #538479; background: #e7f0eb; color: #34564f; font-size: 14px; line-height: 1.8; }
.case-turn { display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 16px; position: relative; padding-bottom: 24px; }
.case-turn:not(:last-child)::before { content: ""; position: absolute; left: 25px; top: 50px; bottom: 0; width: 2px; background: #c3d8cf; }
.time-marker { display: grid; place-items: center; width: 52px; height: 52px; border: 1px solid #9dbfb1; border-radius: 50%; background: #e3f1e9; color: #245c4d; font-size: 14px; font-weight: 750; z-index: 1; }
.turn-content { min-width: 0; border: 1px solid #d4e1da; border-radius: 10px; padding: 22px; background: white; }
.turn-content h3 { margin: 0 0 18px; font-size: 19px; }
.turn-grid { display: grid; grid-template-columns: .72fr 1fr 1.12fr; gap: 24px; }
.turn-grid h4 { margin: 0 0 9px; color: #58726d; font-size: 12px; }
.turn-grid p { margin: 0; font-size: 14px; line-height: 1.8; }
.turn-grid .measurements { color: #25494a; font-weight: 700; font-variant-numeric: tabular-nums; }
.case-judgment { border-left: 1px solid var(--line); padding-left: 22px; }
.safety-label { display: inline-block; margin-top: 13px; padding: 5px 9px; border-radius: 4px; font-size: 12px; font-weight: 650; }
.safety-label.neutral { background: #eef2f4; color: #465f6b; }
.safety-label.concern { background: #fff0dc; color: #8a4c0e; }
.case-takeaway, .limits-note { padding: 21px 24px; border: 1px solid #c3d8cc; border-radius: 8px; background: #edf5ef; }
.case-takeaway p, .limits-note p { margin: 8px 0 0; color: #465e57; font-size: 14px; line-height: 1.85; }
.findings-section { background: white; }
.findings-section h2 { margin-bottom: 0; }
.findings-grid { gap: 16px; border: 0; }
.finding, .finding:first-child { padding: 24px; border: 1px solid #d0e0d7; border-radius: 10px; background: #f2f7f3; }
.finding-number { font-size: 39px; }
.finding h3 { font-size: 16px; line-height: 1.6; }
.finding p { max-width: none; font-size: 14px; line-height: 1.85; }
.metric-source { display: block; margin-top: 16px; color: #60786f; font-size: 11px; line-height: 1.7; }
.leaderboard-section { border-top: 1px solid var(--line); background: #fcfdfc; }
.sort-shortcuts { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 8px 0 18px; font-size: 12px; }
.sort-shortcuts > span { margin-right: 5px; color: var(--muted); }
.sort-shortcuts button { border: 1px solid #bdd1c8; border-radius: 20px; padding: 7px 13px; background: white; color: #365e51; font-size: 12px; }
.sort-shortcuts button[aria-pressed="true"] { background: #e2f1e9; border-color: var(--teal); color: var(--teal-dark); font-weight: 700; }
.sort-shortcuts button:disabled { opacity: .45; cursor: default; }
.scroll-hint { margin: 0 0 8px; font-size: 11px; color: var(--muted); }
.metric-guide p { margin: 0; padding: 0 20px 16px; font-size: 13px; line-height: 1.85; color: var(--muted); }
.metric-guide > a { display: inline-block; margin: 0 20px 18px; }
table[data-level="multi"], table[data-level="single"] { min-width: 860px; }
.sort-button { font-size: 12px; }
.table-footnote { font-size: 12px; line-height: 1.8; }
.dimension-list { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; margin: 0; }
.dimension-list > div { padding: 20px; border: 1px solid var(--line); border-radius: 8px; }
.dimension-list dt { color: #2f5549; font-size: 14px; font-weight: 700; }
.dimension-list dd { margin: 8px 0 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.evidence-section { background: #f3f7f4; border-block: 1px solid var(--line); }
.evidence-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; }
.evidence-card { padding: 24px; background: white; border: 1px solid #d6e1da; border-radius: 10px; }
.evidence-card h3 { margin: 0; font-size: 17px; }
.evidence-card p { margin: 12px 0 14px; color: var(--muted); font-size: 14px; line-height: 1.85; }
.limits-note { margin-top: 22px; }
.access-section .participation-note { padding: 15px 18px; background: white; border-left: 3px solid #b5cfc3; font-size: 13px; }
@media (max-width: 920px) {
  .shell { width: calc(100% - 40px); }
  .site-nav { gap: 13px; }
  .turn-grid { grid-template-columns: 1fr 1.2fr; }
  .case-evidence { grid-column: 1 / -1; }
  .dimension-list { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 720px) {
  .shell { width: calc(100% - 32px); }
  .section { padding-block: 40px; scroll-margin-top: 120px; }
  .hero-inner { padding-block: 26px; }
  .hero { scroll-margin-top: 120px; }
  .hero-logo { width: 112px; }
  .hero-description { font-size: 14px; }
  .research-label { border-radius: 8px; font-size: 11px; }
  .paper-title { font-size: 24px; line-height: 1.4; }
  .site-nav { gap: 4px 13px; justify-content: start; flex-wrap: wrap; overflow: visible; padding-block: 7px; }
  .site-nav a { padding-block: 6px; font-size: 12px; }
  .section-heading .text-link { display: inline-block; margin-top: 12px; }
  .section-intro { font-size: 14px; }
  .level-grid, .findings-grid, .evidence-grid { grid-template-columns: 1fr; }
  .level, .level:first-child, .finding, .finding:first-child { padding: 22px; }
  .level h3 { min-height: 0; }
  .case-turn { grid-template-columns: 38px minmax(0,1fr); gap: 10px; }
  .time-marker { width: 38px; height: 38px; font-size: 12px; }
  .case-turn:not(:last-child)::before { left: 18px; top: 38px; }
  .turn-content { padding: 18px; }
  .turn-content h3 { font-size: 17px; }
  .turn-grid { grid-template-columns: 1fr; gap: 18px; }
  .case-judgment { padding: 14px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .case-takeaway, .limits-note { padding: 18px; }
  .dimension-list { grid-template-columns: 1fr; }
  .tab { max-width: 270px; white-space: normal; text-align: left; }
  .case-study-scroll img { min-width: 0; }
  .sort-shortcuts { gap: 6px; }
}

.case-takeaway p.case-note { margin-top: 12px; color: var(--muted); font-size: 12px; line-height: 1.7; }
.hero-actions + .affiliations { margin-top: 22px; }

/* Align the statistics and task-card footers across languages and breakpoints. */
.fact, .fact:first-child { display: flex; align-items: center; }
.fact-label { margin-top: 0; }
.level { display: flex; flex-direction: column; }
.task-flow { margin-bottom: 20px; }
.level-count { margin-top: auto; }
.tabs { flex-wrap: wrap; overflow: visible; }

/* Typography and metric definitions */
body { font-size: 16px; -webkit-font-smoothing: antialiased; }
.paper-title, html[lang="zh-CN"] .paper-title { font-family: inherit; font-size: clamp(25px, 2.7vw, 36px); font-weight: 650; line-height: 1.45; letter-spacing: -.025em; }
.section-heading h2, .findings-section h2, .eval-section h2, .access-section h2, .citation-section h2 { font-size: clamp(27px, 2.7vw, 36px); letter-spacing: -.025em; line-height: 1.35; }
.task-flow { font-size: 14px; }
.task-flow dt { font-size: 12px; }
.level { box-shadow: 0 4px 18px rgba(24, 64, 68, .035); }
.level h3 { font-size: 20px; }
.sort-button { font-size: 13px; }
.sort-button .sort-unit { font-size: 12px; margin-top: 5px; }
tbody th, tbody td { font-size: 14px; padding: 13px 12px; font-variant-numeric: tabular-nums; }
.model-category { font-size: 11px; }
.metric-definitions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 28px; margin: 0; padding: 0 22px 22px; }
.metric-definitions > div { border-top: 1px solid var(--line); padding-top: 14px; }
.metric-definitions dt { color: var(--ink); font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.metric-definitions dd { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.metric-guide { background: #fbfdfc; }
@media (max-width: 720px) {
 .paper-title { font-size: 26px; }
 .metric-definitions { grid-template-columns: 1fr; padding: 0 18px 20px; gap: 14px; }
 tbody th, tbody td { font-size: 13px; }
}

.evidence-sources { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 24px; padding: 22px 24px; border: 1px solid #cdded8; border-radius: 8px; background: #f3f8f6; }
.evidence-sources h3 { margin: 0 0 12px; font-size: 18px; }
.evidence-sources p { margin: 0; font-size: 14px; line-height: 1.8; color: var(--muted); }
.evidence-sources .source-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.source-tags span { padding: 4px 10px; border: 1px solid #d4e2dd; border-radius: 5px; background: white; color: #125a55; font-weight: 650; }
.evidence-sources > a { flex-shrink: 0; }
@media (max-width: 720px) { .evidence-sources { display: block; padding: 20px; } .evidence-sources > a { display: inline-block; margin-top: 12px; } }