:root {
  --blue: #0639a6;
  --blue-deep: #071b43;
  --blue-soft: #edf3ff;
  --cyan: #63e7e2;
  --ink: #151b25;
  --body: #4e5969;
  --muted: #788394;
  --line: #dce2eb;
  --paper: #f5f1e8;
  --white: #fff;
  --sans: Inter, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --serif: "Noto Serif SC", "Songti SC", SimSun, serif;
  --shell: 1240px;
}

html[lang="en"] {
  --serif: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: var(--sans); line-height: 1.68; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; cursor: pointer; }
[hidden] { display: none !important; }
.page-shell { width: min(var(--shell), calc(100% - 64px)); margin-inline: auto; }

.prototype-notice {
  min-height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 5px 24px;
  background: #fff4c8;
  color: #51430c;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
}
.prototype-notice span { border-radius: 999px; padding: 1px 8px; background: #171717; color: #fff; font-weight: 700; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  min-height: 136px;
  display: grid;
  grid-template-columns: minmax(320px, 1fr) auto auto;
  align-items: center;
  gap: 28px;
  padding: 0 max(32px, calc((100vw - var(--shell)) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
}
.brand { display: flex; align-items: center; gap: 18px; min-width: 0; }
.brand-mark { width: 120px; height: 120px; display: block; flex: 0 0 auto; object-fit: contain; }
.brand-copy { min-width: 0; display: grid; line-height: 1.25; }
.brand-copy strong { overflow: hidden; color: #0b2459; font-size: 1.25rem; text-overflow: ellipsis; white-space: nowrap; }
.brand-copy small { margin-top: 7px; overflow: hidden; color: var(--muted); font-size: 0.82rem; letter-spacing: 0.035em; text-overflow: ellipsis; white-space: nowrap; }
.main-nav { align-self: stretch; display: flex; align-items: stretch; }
.main-nav a { position: relative; display: flex; align-items: center; padding: 0 12px; color: #3b4555; font-size: 0.82rem; font-weight: 600; }
.main-nav a::after { content: ""; position: absolute; right: 12px; bottom: -1px; left: 12px; height: 3px; background: transparent; }
.main-nav a:hover, .main-nav a.is-active { color: var(--blue); }
.main-nav a.is-active::after { background: var(--blue); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.language-button { border: 0; background: transparent; padding: 8px; color: #535f70; font-size: 0.76rem; font-weight: 700; }
.language-button:hover, .language-button:focus-visible { color: var(--blue); }
.contact-link { border-radius: 3px; padding: 10px 15px; background: var(--blue); color: #fff; font-size: 0.76rem; font-weight: 700; }
.nav-toggle { display: none; }

/* English presentation: keep the header identity compact and give long English headlines a calmer hierarchy. */
html[lang="en"] .brand-copy strong { display: none; }
html[lang="en"] .brand-copy small { display: block; margin-top: 0; overflow: visible; color: #0b2459; font-size: .95rem; letter-spacing: 0; line-height: 1.35; text-overflow: clip; white-space: normal; }

@media (min-width: 761px) {
  /* English copy needs a quieter scale than the shorter Chinese headlines. */
  html[lang="en"] .a-hero-copy .eyebrow { max-width: 570px; font-size: clamp(.875rem, calc(1.6vw - 2px), 1.575rem); letter-spacing: .055em; line-height: 1.35; }
  html[lang="en"] .a-hero-copy h1 { max-width: 790px; font-size: clamp(1.625rem, calc(2.1vw + 2px), 2.325rem); letter-spacing: -.04em; line-height: 1.16; }
  html[lang="en"] .variant-a .section-intro h2 { font-size: clamp(1.4rem, 1.9vw, 2.1rem); letter-spacing: -.035em; line-height: 1.3; }
  html[lang="en"] .variant-a :is(.leadership-intro h2, .people-copy h2) { max-width: 760px; font-size: clamp(1.4rem, 1.9vw, 2.1rem); letter-spacing: -.035em; line-height: 1.3; }
  html[lang="en"] .research-hero h1 { max-width: 790px; font-size: clamp(1.625rem, calc(2.1vw + 2px), 2.325rem); letter-spacing: -.04em; line-height: 1.16; }
  html[lang="en"] :is(.network-hero, .cohort-a-hero, .documents-hero) h1 { max-width: 790px; font-size: clamp(1.625rem, calc(2.1vw + 2px), 2.325rem); letter-spacing: -.04em; line-height: 1.16; }
}

.eyebrow { margin: 0 0 18px; color: inherit; font-size: 0.7rem; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase; }
.eyebrow.dark { color: var(--blue); }
.button-row { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; margin-top: 34px; }
.button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 3px; padding: 11px 20px; font-size: 0.8rem; font-weight: 750; }
.button-primary { background: var(--blue); color: #fff; }
.button-light { background: #fff; color: var(--blue-deep); }
.button-ink { background: var(--ink); color: #fff; }
.button-cyan { background: var(--cyan); color: #032c38; }
.button-outline { border-color: rgba(255,255,255,.45); color: #fff; }
.text-link { display: inline-flex; align-items: center; gap: 12px; color: inherit; font-size: 0.82rem; font-weight: 700; }
.text-link span { font-size: 1.15rem; }
.text-link.blue { color: var(--blue); }

/* A — Human narrative */
.variant-a { background: #fff; }
.a-hero { min-height: 650px; display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(420px, .88fr); background: #f3f6fb; }
.a-hero-copy { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; padding: 80px clamp(48px, 4vw, 88px) 80px max(32px, calc((100vw - var(--shell)) / 2)); }
.a-hero-copy .eyebrow { margin-bottom: 22px; color: var(--blue); font-size: clamp(1.45rem, 2.3vw, 2.45rem); letter-spacing: .06em; line-height: 1.3; }
.a-hero-copy h1 { max-width: 790px; margin: 0; color: #102554; font-family: var(--serif); font-size: clamp(2.85rem, 4.6vw, 4.9rem); font-weight: 600; letter-spacing: -.06em; line-height: 1.12; }
.a-hero-copy h1 em { color: var(--blue); font-style: normal; }
.hero-lead { max-width: 670px; margin: 28px 0 0; color: #526074; font-size: 1rem; line-height: 1.95; }
.a-hero-copy .button { min-height: 52px; padding: 13px 23px; font-size: clamp(.95rem, 1.05vw, 1.05rem); }
.a-hero-copy .text-link { font-size: clamp(.95rem, 1.05vw, 1.05rem); }
.a-hero-copy .text-link span { font-size: 1.25em; }
.a-hero-visual { position: relative; min-height: 650px; overflow: hidden; background: var(--blue-deep); }
.clinical-scene { position: absolute; inset: 0; }
.clinical-scene img { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; object-fit: cover; object-position: center; transition: opacity 1.6s ease-in-out; }
.clinical-scene img.is-active { opacity: 1; }
.scene-options { position: absolute; z-index: 4; bottom: 18px; left: 50%; display: flex; align-items: center; gap: 2px; transform: translateX(-50%); }
.scene-options button { position: relative; width: 28px; height: 28px; border: 0; padding: 0; background: transparent; }
.scene-options button::before { content: ""; position: absolute; top: 50%; left: 50%; width: 6px; height: 6px; border: 1px solid rgba(255,255,255,.82); border-radius: 99px; background: rgba(4,18,48,.28); box-shadow: 0 1px 8px rgba(0,0,0,.28); transform: translate(-50%,-50%); transition: width .25s ease, background .25s ease; }
.scene-options button:hover::before, .scene-options button:focus-visible::before, .scene-options button.is-active::before { width: 17px; background: #fff; }
.scene-options button:focus-visible { outline: 2px solid #fff; outline-offset: 1px; border-radius: 99px; }
.a-metrics { display: grid; grid-template-columns: repeat(3, 1fr) .65fr; padding: 0 max(32px, calc((100vw - var(--shell)) / 2)); background: var(--blue-deep); color: #fff; }
.a-metrics > * { min-height: 142px; display: flex; flex-direction: column; justify-content: center; margin: 0; padding: 24px 30px; border-right: 1px solid rgba(255,255,255,.16); }
.a-metrics strong { font-family: var(--serif); font-size: 2.4rem; line-height: 1.05; }
:is(.a-metrics, .research-summary, .archive-metrics) .metric-number { font-family: var(--sans); font-weight: 700; font-variant-numeric: lining-nums tabular-nums; font-feature-settings: "lnum" 1, "tnum" 1; line-height: 1; }
.a-metrics span { margin-top: 8px; font-size: .78rem; font-weight: 700; }
.a-metrics small { margin-top: 5px; color: rgba(255,255,255,.57); font-size: .66rem; }
.a-metrics > p { color: rgba(255,255,255,.55); font-size: .67rem; }
.a-metrics > p strong { margin-top: 6px; color: #fff; font-size: .85rem; }
.a-story { padding-top: 108px; padding-bottom: 108px; }
.section-intro h2 { max-width: 720px; margin: 0; color: #172541; font-family: var(--serif); font-size: clamp(2.1rem, 3.4vw, 3.6rem); font-weight: 600; letter-spacing: -.045em; line-height: 1.25; }
.section-intro.horizontal { display: flex; align-items: end; justify-content: space-between; gap: 40px; }
.story-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; margin-top: 58px; padding-top: 38px; border-top: 1px solid var(--line); }
.story-columns p { margin-top: 0; color: var(--body); }
.story-columns .story-lead { color: var(--blue-deep); font-family: var(--serif); font-size: 1.42rem; font-weight: 600; line-height: 1.72; }
.story-columns > div { max-width: 520px; }
.story-columns .text-link { margin-top: 18px; }
.a-research { padding-top: 100px; padding-bottom: 110px; border-top: 1px solid var(--line); }
.research-paths { margin-top: 54px; border-top: 2px solid var(--blue-deep); }
.research-paths article { display: grid; grid-template-columns: 65px minmax(0,1fr) 120px; align-items: center; gap: 24px; padding: 29px 0; border-bottom: 1px solid var(--line); transition: padding .2s, background .2s; }
.research-paths article:hover { padding-inline: 18px; background: var(--blue-soft); }
.research-paths article > span { color: var(--blue); font-family: var(--serif); font-size: 1.2rem; font-weight: 700; }
.research-paths h3 { margin: 0; color: #16223c; font-size: 1.12rem; }
.research-paths p { margin: 6px 0 0; color: var(--body); font-size: .82rem; }
.research-paths b { justify-self: end; border: 1px solid var(--line); border-radius: 99px; padding: 6px 12px; color: #647085; font-size: .68rem; }
.a-people, .a-leadership { background: linear-gradient(135deg, #0d42b5 0%, #082e86 58%, #061d4e 100%); color: #fff; }
.a-people { position: relative; padding: 104px 0; border-top: 1px solid rgba(255,255,255,.24); }
.people-layout { display: grid; grid-template-columns: minmax(300px, .72fr) minmax(0, 1.28fr); align-items: center; gap: 70px; }
.people-copy h2 { max-width: 540px; margin: 0; font-family: var(--serif); font-size: clamp(2.7rem, 4vw, 4.5rem); font-weight: 600; letter-spacing: -.05em; line-height: 1.12; }
.people-copy > p:not(.eyebrow) { max-width: 590px; margin: 26px 0 0; color: rgba(255,255,255,.76); font-size: 1rem; line-height: 1.85; }
.people-copy .button { margin-top: 27px; }
.people-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.people-card { position: relative; overflow: hidden; aspect-ratio: 4 / 5; background: #fff; }
.people-card::after { content: ""; position: absolute; inset: 38% 0 0; background: linear-gradient(to bottom, transparent, rgba(3,18,54,.9)); pointer-events: none; }
.people-card img { width: 100%; height: 100%; object-fit: cover; object-position: center top; }
.people-card-copy { position: absolute; z-index: 1; right: 0; bottom: 0; left: 0; padding: 26px 18px 16px; color: #fff; }
.people-card-copy h3 { margin: 0; font-family: var(--serif); font-size: 1.25rem; line-height: 1.2; }
.people-card-copy p { margin: 5px 0 0; color: rgba(255,255,255,.7); font-size: .66rem; line-height: 1.45; }
.people-card-copy p span::after { content: " · "; }
.people-card-copy p b { font-weight: 500; }
.a-leadership { position: relative; overflow: hidden; padding: 104px 0 94px; }
.a-leadership::before, .a-leadership::after { content: ""; position: absolute; border: 1px solid rgba(255,255,255,.12); border-radius: 50%; pointer-events: none; }
.a-leadership::before { top: -250px; right: -150px; width: 650px; height: 650px; }
.a-leadership::after { right: 190px; bottom: -330px; width: 520px; height: 520px; }
.leadership-intro { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; align-items: end; gap: 70px; padding-bottom: 50px; border-bottom: 1px solid rgba(255,255,255,.24); }
.leadership-intro h2 { max-width: 820px; margin: 0; font-family: var(--serif); font-size: clamp(2.7rem, 4.3vw, 5rem); font-weight: 600; letter-spacing: -.055em; line-height: 1.04; }
.leadership-intro h2 span, .leadership-intro h2 em { display: block; }
.leadership-intro h2 em { color: #bcd6ff; font-style: normal; }
.leadership-intro > p { max-width: 520px; margin: 0 0 4px; color: rgba(255,255,255,.78); font-size: 1.06rem; line-height: 1.85; }
.leadership-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(290px, .68fr) minmax(0, 1.32fr); gap: 18px; margin-top: 38px; }
.lead-pi-card, .team-photo-card { overflow: hidden; border: 1px solid rgba(255,255,255,.28); background: rgba(4,20,58,.38); }
.lead-pi-card { display: grid; grid-template-rows: 1fr auto; }
.lead-pi-image { min-height: 420px; overflow: hidden; background: #fff; }
.lead-pi-image img { width: 100%; height: 100%; min-height: 420px; object-fit: contain; object-position: center bottom; }
.lead-pi-copy, .team-photo-copy { padding: 24px 26px 27px; }
.lead-pi-copy .eyebrow, .team-photo-copy .eyebrow { margin-bottom: 10px; color: #bcd6ff; }
.lead-pi-copy h3, .team-photo-copy h3 { margin: 0; font-family: var(--serif); font-size: clamp(1.6rem, 2vw, 2.2rem); line-height: 1.25; }
.lead-pi-copy > p:last-child, .team-photo-copy > p:last-child { margin: 10px 0 0; color: rgba(255,255,255,.68); font-size: .88rem; line-height: 1.65; }
.team-photo-card { display: grid; grid-template-rows: 1fr auto; }
.team-photo-placeholder { position: relative; min-height: 420px; display: flex; align-items: center; justify-content: center; overflow: hidden; background: linear-gradient(145deg, rgba(255,255,255,.12), rgba(255,255,255,.025)); }
.team-photo-placeholder::before { content: ""; position: absolute; inset: 24px; border: 1px dashed rgba(255,255,255,.36); }
.team-photo-wordmark { color: rgba(255,255,255,.075); font-family: var(--sans); font-size: clamp(4.5rem, 10vw, 9rem); font-weight: 800; letter-spacing: .08em; }
.team-photo-status { position: absolute; bottom: 48px; left: 50%; border: 1px solid rgba(255,255,255,.3); border-radius: 99px; padding: 9px 15px; background: rgba(4,20,58,.55); color: rgba(255,255,255,.86); font-size: .76rem; font-weight: 700; letter-spacing: .08em; transform: translateX(-50%); white-space: nowrap; }
.leadership-footer { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 40px; margin-top: 34px; padding-top: 32px; border-top: 1px solid rgba(255,255,255,.24); }
.leadership-footer p { max-width: 760px; margin: 0; color: rgba(255,255,255,.76); font-size: 1rem; line-height: 1.8; }
.leadership-footer .button { flex: 0 0 auto; }

/* B — Academic editorial */
.variant-b { background: var(--paper); color: #181715; font-family: var(--serif); }
.variant-b .eyebrow { font-family: var(--sans); }
.b-masthead { display: grid; grid-template-columns: .34fr 1fr; gap: 70px; padding-top: 90px; padding-bottom: 70px; }
.b-edition { display: grid; align-content: start; border-top: 5px solid #171717; padding-top: 12px; font-family: var(--sans); }
.b-edition span { font-size: .72rem; font-weight: 800; letter-spacing: .16em; }
.b-edition strong { margin-top: 20px; color: #c92d27; font-family: var(--serif); font-size: 8rem; font-weight: 500; letter-spacing: -.08em; line-height: .8; }
.b-edition small { margin-top: 28px; color: #777269; font-size: .68rem; }
.b-title h1 { max-width: 870px; margin: 0; font-size: clamp(3.4rem,6vw,6.6rem); font-weight: 600; letter-spacing: -.07em; line-height: 1.09; }
.b-title > p:last-child { max-width: 660px; margin: 32px 0 0; color: #5b5851; font-size: 1.02rem; line-height: 1.9; }
.b-rule { display: flex; justify-content: space-between; border-top: 1px solid #191919; border-bottom: 1px solid #191919; padding-top: 9px; padding-bottom: 9px; font-family: var(--sans); font-size: .64rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.b-lead { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 70px; padding-top: 70px; padding-bottom: 110px; }
.b-image-wrap { height: 430px; overflow: hidden; border: 1px solid #cfc9bc; background: #fff; }
.b-image-wrap img { width: 100%; height: 100%; object-fit: contain; }
.story-index { margin: 24px 0 10px; color: #c92d27; font-family: var(--sans); font-size: .67rem; font-weight: 800; letter-spacing: .14em; }
.b-lead-story h2 { max-width: 800px; margin: 0; font-size: clamp(2.2rem,4vw,4rem); font-weight: 600; letter-spacing: -.045em; line-height: 1.25; }
.b-lead-story > p:not(.story-index) { max-width: 760px; color: #59554d; font-size: .96rem; }
.b-lead-story .text-link { margin-top: 14px; font-family: var(--sans); }
.b-index { align-self: start; position: sticky; top: 108px; border-top: 5px solid #171717; padding-top: 20px; font-family: var(--sans); }
.b-index dl { margin: 0; }
.b-index dl div { display: flex; align-items: baseline; justify-content: space-between; padding: 15px 0; border-bottom: 1px solid #cfc9bc; }
.b-index dt { color: #68645d; font-size: .72rem; }
.b-index dd { margin: 0; font-family: var(--serif); font-size: 1.65rem; font-weight: 700; }
.b-index dd small { font-size: .65rem; }
.b-index .button { width: 100%; margin-top: 24px; font-family: var(--sans); }
.b-programs { display: grid; grid-template-columns: 260px 1fr; gap: 70px; padding-top: 90px; padding-bottom: 110px; border-top: 1px solid #191919; }
.b-section-label > span { color: #c92d27; font-size: 4rem; line-height: 1; }
.b-section-label h2 { margin: 15px 0 4px; font-size: 2.1rem; }
.b-section-label p { margin: 0; color: #69645c; font-family: var(--sans); font-size: .7rem; }
.b-program-list { border-top: 4px solid #171717; }
.b-program-list article { display: grid; grid-template-columns: 130px minmax(0,1fr) minmax(220px,.7fr) 40px; align-items: center; gap: 24px; min-height: 118px; border-bottom: 1px solid #bfb8ac; }
.b-program-list article > span { color: #c92d27; font-family: var(--sans); font-size: .64rem; font-weight: 800; letter-spacing: .12em; }
.b-program-list h3 { margin: 0; font-size: 1.2rem; }
.b-program-list p { margin: 0; color: #69645c; font-family: var(--sans); font-size: .7rem; }
.b-program-list b { justify-self: end; font-size: 1.6rem; font-weight: 500; }
.b-quote { padding: 92px 0; background: #1b1a18; color: #f5f1e8; }
.b-quote .page-shell { display: grid; grid-template-columns: 1fr 300px; align-items: end; gap: 100px; }
.b-quote blockquote { max-width: 780px; margin: 0; font-size: clamp(2rem,3.6vw,3.7rem); line-height: 1.45; }
.b-pi { display: flex; align-items: end; gap: 18px; font-family: var(--sans); }
.b-pi img { width: 84px; height: 110px; object-fit: cover; object-position: top; filter: grayscale(1); }
.b-pi p { display: grid; margin: 0; }
.b-pi strong { font-size: .8rem; }
.b-pi span { color: #bbb6ac; font-size: .67rem; }
.b-pi small { margin-top: 12px; color: #f1a09a; font-size: .58rem; line-height: 1.5; }
.b-footer-index { padding-top: 80px; padding-bottom: 120px; }
.b-footer-index > p { font-family: var(--sans); font-size: .68rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.b-footer-index a { display: flex; justify-content: space-between; border-top: 1px solid #1b1a18; padding: 20px 0; font-size: 1.35rem; }
.b-footer-index a:last-child { border-bottom: 1px solid #1b1a18; }
.b-footer-index b { color: #c92d27; font-weight: 500; }

/* C — Cohort data first */
.variant-c { overflow: hidden; background: #061632; color: #eaf4ff; }
.c-shell { width: min(1380px, calc(100% - 40px)); margin: 20px auto; border: 1px solid rgba(116,173,226,.22); background: #091c3e; box-shadow: 0 35px 100px rgba(0,0,0,.28); }
.c-hero { min-height: 590px; display: grid; grid-template-columns: 1fr .9fr; border-bottom: 1px solid rgba(116,173,226,.18); }
.c-hero-copy { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; padding: 70px 6vw; }
.c-hero-copy .eyebrow, .c-data .eyebrow, .c-pipeline .eyebrow, .c-collaboration .eyebrow { color: var(--cyan); }
.c-hero-copy h1 { max-width: 760px; margin: 0; font-size: clamp(3rem,5.3vw,5.8rem); letter-spacing: -.065em; line-height: 1.04; }
.c-hero-copy > p:not(.eyebrow) { max-width: 650px; margin: 28px 0 0; color: #9fb3cc; line-height: 1.9; }
.c-network { position: relative; min-height: 520px; overflow: hidden; background: radial-gradient(circle at 50% 50%, rgba(36,112,176,.3), transparent 57%); }
.network-orbit { position: absolute; top: 50%; left: 50%; border: 1px solid rgba(99,231,226,.26); border-radius: 50%; transform: translate(-50%,-50%); }
.orbit-one { width: 52%; aspect-ratio: 1; }
.orbit-two { width: 80%; aspect-ratio: 1; border-style: dashed; }
.network-core { position: absolute; top: 50%; left: 50%; width: 150px; aspect-ratio: 1; display: grid; place-items: center; align-content: center; border: 1px solid rgba(99,231,226,.72); border-radius: 50%; background: #0d2c53; transform: translate(-50%,-50%); box-shadow: 0 0 55px rgba(99,231,226,.15); text-align: center; }
.network-core strong { color: var(--cyan); font-size: 1.15rem; letter-spacing: .06em; }
.network-core span { margin-top: 7px; color: #a5b8ce; font-size: .62rem; }
.c-network i { position: absolute; top: var(--y); left: var(--x); width: 15px; height: 15px; border: 3px solid #091c3e; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 1px rgba(99,231,226,.5), 0 0 22px rgba(99,231,226,.45); }
.network-label { position: absolute; right: 8%; bottom: 9%; border-left: 2px solid var(--cyan); padding-left: 13px; color: #9fb3cc; font-size: .72rem; }
.c-data { padding: 72px 6vw 84px; border-bottom: 1px solid rgba(116,173,226,.18); }
.c-data-head, .c-section-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; }
.c-data-head h2, .c-section-head h2 { margin: 0; font-size: clamp(2rem,3.4vw,3.5rem); letter-spacing: -.04em; }
.c-data-head > span { color: #7187a2; font-size: .66rem; }
.c-metric-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 12px; margin-top: 38px; }
.c-metric { min-height: 230px; display: flex; flex-direction: column; justify-content: space-between; border: 1px solid rgba(116,173,226,.2); padding: 25px; background: #0c2449; }
.c-metric > span { color: #91a6c0; font-size: .7rem; font-weight: 700; letter-spacing: .07em; }
.c-metric > strong { color: #fff; font-size: clamp(2.4rem,4vw,4.4rem); letter-spacing: -.05em; line-height: 1; }
.c-metric > small { color: #7f96b1; font-size: .65rem; }
.c-metric.hero-metric { background: var(--cyan); color: #04283a; }
.c-metric.hero-metric > span, .c-metric.hero-metric > strong { color: #04283a; }
.metric-split { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid rgba(4,40,58,.25); padding-top: 15px; }
.metric-split p { display: grid; margin: 0; font-size: .62rem; }
.metric-split b { font-size: 1rem; }
.c-metric.pending { border-style: dashed; background: rgba(12,36,73,.4); }
.c-metric.pending > strong { color: #f2c96d; font-size: 1.7rem; }
.c-pipeline { padding: 86px 6vw; border-bottom: 1px solid rgba(116,173,226,.18); }
.c-section-head a { color: var(--cyan); font-size: .72rem; font-weight: 700; }
.c-pipeline ol { display: grid; grid-template-columns: repeat(4,1fr); margin: 46px 0 0; padding: 0; list-style: none; }
.c-pipeline li { position: relative; min-height: 210px; padding: 20px 28px 20px 0; border-top: 1px solid rgba(99,231,226,.45); }
.c-pipeline li::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; border-radius: 50%; background: var(--cyan); }
.c-pipeline li > span { color: var(--cyan); font-size: .68rem; }
.c-pipeline h3 { margin: 30px 0 8px; font-size: 1.12rem; }
.c-pipeline p { max-width: 240px; margin: 0; color: #8399b3; font-size: .74rem; }
.c-collaboration { display: grid; grid-template-columns: 1fr .7fr; gap: 80px; padding: 86px 6vw 100px; background: #0d2b53; }
.c-collaboration h2 { max-width: 720px; margin: 0; font-size: clamp(2rem,3.5vw,3.8rem); line-height: 1.24; }
.c-collaboration > div:last-child { display: flex; flex-direction: column; align-items: flex-start; justify-content: flex-end; }
.c-collaboration > div:last-child p { color: #9aacc1; font-size: .77rem; }

.site-footer { min-height: 150px; display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 30px max(32px, calc((100vw - var(--shell)) / 2)); background: #050e20; color: #77869b; font-size: .68rem; }
.site-footer strong { color: #dce6f4; font-size: .78rem; }
.global-footer { border-top: 1px solid var(--line); background: #fff; color: var(--ink); }
.footer-directory { display: grid; grid-template-columns: 1.25fr .62fr .95fr .82fr; gap: 56px; padding-top: 72px; padding-bottom: 62px; }
.footer-identity { max-width: 470px; }
.footer-identity-head { display: flex; align-items: center; gap: 14px; }
.footer-brand-mark { width: 52px; height: 52px; display: block; flex: 0 0 auto; object-fit: contain; }
.footer-identity-head > span:last-child { display: grid; line-height: 1.3; }
.footer-identity-head strong { color: #102554; font-size: .88rem; }
.footer-identity-head small { margin-top: 5px; color: #7a8595; font-size: .58rem; }
.footer-identity > p { margin: 22px 0 0; color: #687589; font-size: .7rem; line-height: 1.85; }
.footer-column h3 { margin: 0 0 18px; color: #102554; font-size: .68rem; font-weight: 800; letter-spacing: .09em; }
.footer-column a { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 39px; border-bottom: 1px solid #e2e6ed; color: #5c687b; font-size: .68rem; }
.footer-column a::after { content: "↗"; color: #a0a9b6; font-size: .7rem; }
.footer-column a:hover, .footer-column a:focus-visible { color: var(--blue); }
.footer-column a:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.footer-column.site-map a::after { content: "→"; }
.footer-contact-column p { margin: 0 0 12px; color: #7a8595; font-size: .63rem; line-height: 1.75; }
.footer-contact-column .footer-mail { color: var(--blue); font-weight: 700; overflow-wrap: anywhere; }
.footer-meta { border-top: 1px solid var(--line); background: #f5f8fd; }
.footer-meta .page-shell { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 25px; color: #768295; font-size: .6rem; }
.footer-meta strong { color: #415069; font-size: .62rem; }
.prototype-switcher { position: fixed; z-index: 100; bottom: 22px; left: 50%; display: grid; grid-template-columns: 44px minmax(180px,auto) 44px; align-items: center; overflow: hidden; border: 1px solid rgba(255,255,255,.16); border-radius: 99px; background: rgba(10,15,25,.94); color: #fff; box-shadow: 0 14px 45px rgba(0,0,0,.3); transform: translateX(-50%); backdrop-filter: blur(16px); }
.prototype-switcher button { height: 48px; border: 0; background: transparent; color: #fff; font-size: 1.1rem; }
.prototype-switcher button:hover { background: rgba(255,255,255,.1); }
.prototype-switcher > div { display: grid; min-width: 180px; padding: 7px 18px; border-right: 1px solid rgba(255,255,255,.12); border-left: 1px solid rgba(255,255,255,.12); text-align: center; line-height: 1.3; }
.prototype-switcher small { color: #8994a6; font-size: .55rem; letter-spacing: .1em; }
.prototype-switcher strong { margin-top: 2px; font-size: .72rem; }

/* Desktop reading scale: keep the visual hierarchy while making supporting labels
   readable at the full-page widths used for review and presentation. */
@media (min-width: 761px) {
  .eyebrow { font-size: .95rem; letter-spacing: .11em; }

  .research-paths article > span { font-size: 1.3rem; }
  .research-paths h3 { font-size: 1.22rem; }
  .research-paths p { font-size: .9rem; }
  .research-paths b { font-size: .76rem; }

  .a-metrics > * { min-height: 176px; }
  .a-metrics span { font-size: 1rem; }
  .a-metrics small { font-size: .88rem; }
  .a-metrics > p { font-size: .9rem; }
  .a-metrics > p strong { font-size: 1.1rem; }

  .footer-identity-head strong { font-size: 1.14rem; }
  .footer-identity-head small { font-size: .82rem; }
  .footer-identity > p { font-size: .94rem; }
  .footer-column h3 { font-size: .92rem; }
  .footer-column a { min-height: 46px; font-size: .92rem; }
  .footer-column a::after { font-size: .96rem; }
  .footer-contact-column p { font-size: .9rem; }
  .footer-meta .page-shell { font-size: .82rem; }
  .footer-meta strong { font-size: .86rem; }
}

@media (max-width: 1080px) {
  .site-header { grid-template-columns: minmax(0, 1fr) auto auto; padding-inline: 24px; }
  .main-nav { position: absolute; top: 100%; right: 0; left: 0; display: none; align-self: auto; padding: 12px 24px 20px; border-bottom: 1px solid var(--line); background: #fff; }
  .main-nav.is-open { display: grid; }
  .main-nav a { min-height: 44px; }
  .nav-toggle { display: block; justify-self: end; border: 1px solid var(--line); background: #fff; padding: 8px 12px; font-size: .72rem; }
  .header-actions { display: flex; }
  .contact-link { display: none; }
  .a-hero { grid-template-columns: 1fr .72fr; }
  .a-metrics { grid-template-columns: repeat(3,1fr); }
  .a-metrics > p { grid-column: 1 / -1; min-height: auto; flex-direction: row; gap: 8px; }
  .people-layout { grid-template-columns: 1fr; }
  .people-copy { max-width: 780px; }
  .b-masthead { grid-template-columns: 210px 1fr; gap: 45px; }
  .b-edition strong { font-size: 6rem; }
  .b-programs { grid-template-columns: 190px 1fr; gap: 40px; }
  .b-program-list article { grid-template-columns: 100px 1fr 30px; }
  .b-program-list p { display: none; }
  .c-metric-grid { grid-template-columns: 1fr 1fr; }
  .footer-directory { grid-template-columns: 1.15fr 1fr; gap: 48px 60px; }
}

@media (max-width: 760px) {
  .page-shell { width: min(100% - 36px, var(--shell)); }
  .prototype-notice strong { display: none; }
  .site-header { min-height: 68px; padding-inline: 18px; }
  .brand-mark { width: 40px; height: 40px; }
  .language-button { padding-inline: 4px; font-size: .66rem; }
  .brand-copy strong { font-size: .75rem; }
  .brand-copy small { display: none; }
  html[lang="en"] .brand-copy small { display: none; }
  .a-hero { display: flex; min-height: auto; flex-direction: column; }
  .a-hero-copy { padding: 65px 22px 70px; }
  .a-hero-copy .eyebrow { font-size: clamp(1.35rem, 6.5vw, 2.1rem); }
  .a-hero-copy h1 { font-size: clamp(2.7rem,13vw,4.2rem); }
  html[lang="en"] .variant-a :is(.leadership-intro h2, .people-copy h2) { font-size: clamp(1.4rem, 6vw, 1.9rem); letter-spacing: -.035em; line-height: 1.3; }
  .a-hero-visual { min-height: 470px; }
  .clinical-scene img { object-position: center 30%; }
  .scene-options { bottom: 12px; }
  .a-metrics { grid-template-columns: 1fr; padding-inline: 22px; }
  .a-metrics > * { min-height: 120px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); padding-inline: 0; }
  .a-story, .a-research { padding-top: 76px; padding-bottom: 78px; }
  .story-columns { grid-template-columns: 1fr; gap: 38px; }
  .section-intro.horizontal { display: block; }
  .section-intro.horizontal .text-link { margin-top: 24px; }
  .research-paths article { grid-template-columns: 42px 1fr; gap: 12px; }
  .research-paths article b { display: none; }
  .a-people { padding: 74px 0 82px; }
  .people-layout { gap: 38px; }
  .people-copy h2 { font-size: clamp(2.2rem, 11vw, 3.3rem); }
  .people-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .people-card-copy { padding: 20px 12px 12px; }
  .people-card-copy h3 { font-size: 1rem; }
  .people-card-copy p { font-size: .58rem; }
  .a-leadership { padding: 74px 0 82px; }
  .leadership-intro, .leadership-grid { grid-template-columns: 1fr; gap: 34px; }
  .leadership-intro { padding-bottom: 38px; }
  .leadership-intro h2 { font-size: clamp(2.2rem, 11vw, 3.3rem); }
  .leadership-grid { gap: 16px; margin-top: 28px; }
  .lead-pi-image, .lead-pi-image img, .team-photo-placeholder { min-height: 280px; }
  .lead-pi-image img { max-height: 380px; }
  .team-photo-wordmark { font-size: clamp(3rem, 18vw, 5rem); }
  .team-photo-status { bottom: 36px; }
  .leadership-footer { align-items: flex-start; flex-direction: column; gap: 24px; }
  .b-masthead { display: block; padding-top: 65px; padding-bottom: 50px; }
  .b-edition { grid-template-columns: 1fr auto; align-items: start; margin-bottom: 52px; }
  .b-edition strong { grid-row: span 2; margin: 0; font-size: 4rem; }
  .b-title h1 { font-size: clamp(3rem,14vw,5rem); }
  .b-lead { grid-template-columns: 1fr; gap: 55px; padding-top: 48px; padding-bottom: 78px; }
  .b-image-wrap { height: 260px; }
  .b-index { position: static; }
  .b-programs { grid-template-columns: 1fr; gap: 38px; padding-top: 65px; padding-bottom: 76px; }
  .b-program-list article { grid-template-columns: 76px 1fr 30px; min-height: 100px; }
  .b-quote { padding: 70px 0; }
  .b-quote .page-shell { grid-template-columns: 1fr; gap: 50px; }
  .b-footer-index { padding-bottom: 95px; }
  .c-shell { width: 100%; margin: 0; border-width: 0; }
  .c-hero { grid-template-columns: 1fr; }
  .c-hero-copy { padding: 68px 24px 45px; }
  .c-hero-copy h1 { font-size: clamp(3rem,13vw,4.6rem); }
  .c-network { min-height: 430px; }
  .c-data, .c-pipeline, .c-collaboration { padding: 68px 24px 80px; }
  .c-data-head, .c-section-head { display: block; }
  .c-data-head > span, .c-section-head > a { display: block; margin-top: 18px; }
  .c-metric-grid { grid-template-columns: 1fr; }
  .c-metric { min-height: 200px; }
  .c-pipeline ol { grid-template-columns: 1fr; }
  .c-pipeline li { min-height: 150px; }
  .c-collaboration { grid-template-columns: 1fr; gap: 42px; }
  .site-footer { flex-direction: column; align-items: flex-start; padding-bottom: 110px; }
  .footer-directory { grid-template-columns: 1fr; gap: 48px; padding-top: 60px; padding-bottom: 60px; }
  .footer-meta .page-shell { min-height: 120px; flex-direction: column; align-items: flex-start; justify-content: center; gap: 7px; padding-top: 24px; padding-bottom: 90px; }
  .prototype-switcher { bottom: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}