:root {
  color-scheme: light;
  --background: #fdfdfd;
  --text: #222;
  --secondary: #626262;
  --muted: #717171;
  --line: #e9e9e9;
  --blue: #0066cc;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; }
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 18px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
::selection { background: #dfeaf6; }
a { color: inherit; text-decoration-color: #c7c7c7; text-underline-offset: 4px; text-decoration-thickness: 1px; transition: color .16s, text-decoration-color .16s; }
a:hover { color: var(--blue); text-decoration-color: var(--blue); }
a:focus-visible, [role="tabpanel"]:focus-visible { outline: 2px solid var(--blue); outline-offset: 5px; border-radius: 2px; }
strong { font-weight: 600; }
p, h1, h2, h3, figure { margin: 0; }
.page { width: min(100% - 80px, 940px); margin-inline: auto; min-height: 100vh; min-height: 100svh; display: flex; flex-direction: column; }
main { padding-bottom: 40px; }
.skip-link { position: absolute; left: 24px; top: -100px; z-index: 2; background: white; padding: 8px 16px; }
.skip-link:focus { top: 12px; }

/* Biography and portrait. Text leads on both desktop and mobile. */
.intro { display: grid; grid-template-columns: minmax(0, 1fr) 184px; gap: 76px; padding: 65px 0 54px; align-items: start; }
h1 { font-size: 42px; letter-spacing: -1.2px; font-weight: 600; line-height: 1.3; }
.chinese-name { display: inline-block; margin-left: 12px; font-size: 25px; font-weight: 400; color: #747474; letter-spacing: 2px; vertical-align: 4px; }
.biography { margin-top: 25px; }
.biography p + p { margin-top: 14px; }
.social-links { display: flex; flex-wrap: wrap; gap: 10px 17px; align-items: center; margin-top: 23px; font-size: 16px; }
.social-links a { text-decoration: none; }
.social-links a span { font-size: 15px; color: #909090; margin-left: 2px; }
.separator { color: #ccc; font-size: 15px; }
.portrait { padding-top: 8px; }
.portrait img { display: block; width: 184px; height: 236px; object-fit: cover; object-position: center; border-radius: 5px; background: #f1f1f1; }
.portrait figcaption { text-align: right; margin-top: 11px; color: var(--muted); font-size: 14px; letter-spacing: .15px; }

/* The content navigation stays below the biography, not at the top of the page. */
.content-tabs { display: flex; gap: 34px; border-bottom: 1px solid var(--line); margin-bottom: 28px; }
.content-tabs a { padding: 0 0 13px; margin-bottom: -1px; border-bottom: 2px solid transparent; color: var(--secondary); font-size: 19px; text-decoration: none; }
.content-tabs a:hover { color: var(--blue); }
.content-tabs a[aria-selected="true"] { color: var(--text); border-bottom-color: var(--text); font-weight: 600; }
.tab-panel[hidden] { display: none; }
.tab-panel { margin-bottom: 28px; }
.panel-title { margin-bottom: 22px; }
.tabs-enabled .panel-title { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
h2 { font-size: 22px; font-weight: 550; letter-spacing: -.35px; line-height: 1.4; }
.news-list { padding: 0; margin: 0; list-style: none; font-size: 16px; }
.news-list li { display: grid; grid-template-columns: 94px minmax(0, 1fr); gap: 14px; margin-top: 10px; }
.news-list time { color: var(--muted); font-size: 15px; font-variant-numeric: tabular-nums; line-height: 1.9; }
.news-list strong { font-weight: 500; }
.research-meta { display: flex; justify-content: space-between; gap: 16px; color: var(--muted); font-size: 14px; margin-bottom: 24px; }
.research-meta a { text-decoration: none; }
.misc-group h3 { font-size: 21px; font-weight: 550; letter-spacing: -.3px; }
.publication { display: grid; grid-template-columns: 195px minmax(0, 1fr); gap: 28px; padding: 24px 0; align-items: start; }
.publication + .publication { border-top: 1px solid var(--line); }
.paper-visual { display: flex; align-items: center; width: 195px; height: 137px; padding: 7px; background: white; border: 1px solid var(--line); border-radius: 4px; }
.paper-visual img { display: block; width: 100%; height: 100%; object-fit: contain; }
.venue { color: var(--secondary); font-size: 13px; font-weight: 600; letter-spacing: .8px; margin-bottom: 5px; }
.publication h3 { font-size: 18px; font-weight: 600; line-height: 1.6; }
.publication h3 a { text-decoration: none; }
.authors { margin-top: 7px; color: var(--secondary); font-size: 15px; line-height: 1.8; }
.authors strong { color: var(--text); }
.paper-links { display: flex; flex-wrap: wrap; gap: 17px; margin-top: 12px; font-size: 14px; }
.paper-links a { text-decoration: none; }
.misc-group + .misc-group { margin-top: 35px; }
.honors-list { list-style: none; padding: 0; margin: 20px 0 0; font-size: 16px; }
.honors-list li { display: grid; grid-template-columns: 72px minmax(0, 1fr); gap: 14px; }
.honors-list li + li { margin-top: 10px; }
.honors-list time { color: var(--muted); font-size: 15px; font-variant-numeric: tabular-nums; }
.site-footer { border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; margin-top: auto; padding: 25px 0 38px; font-size: 13px; color: var(--muted); }

@media (min-width: 1440px) {
  .page { width: 940px; }
  .intro { padding-top: 76px; padding-bottom: 62px; }
}
@media (max-width: 800px) {
  .page { width: calc(100% - 48px); }
  .intro { gap: 34px; grid-template-columns: minmax(0, 1fr) 150px; padding-top: 44px; }
  .portrait img { width: 150px; height: 200px; }
  h1 { font-size: 37px; }
  .chinese-name { font-size: 22px; margin-left: 5px; }
}
@media (max-width: 580px) {
  body { font-size: 17px; }
  .page { width: calc(100% - 40px); }
  .intro { display: flex; flex-direction: column; padding: 36px 0; gap: 25px; }
  .intro-copy { width: 100%; }
  h1 { font-size: 37px; }
  .chinese-name { font-size: 23px; margin-left: 8px; }
  .biography { margin-top: 23px; }
  .portrait { display: flex; align-items: flex-end; gap: 14px; padding: 0; }
  .portrait img { width: 96px; height: 128px; border-radius: 4px; }
  .portrait figcaption { text-align: left; margin-bottom: 2px; }
  .content-tabs { gap: 29px; margin-bottom: 23px; }
  .content-tabs a { font-size: 18px; }
  h2 { font-size: 21px; }
  .news-list li { grid-template-columns: 72px minmax(0, 1fr); gap: 10px; }
  .news-list { font-size: 15px; }
  .news-list time { font-size: 14px; }
  .publication { grid-template-columns: 1fr; gap: 16px; }
  .paper-visual { width: 100%; height: auto; aspect-ratio: 1.85; padding: 12px; }
  .paper-links { font-size: 15px; }
  .site-footer { column-gap: 22px; row-gap: 7px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  a { transition: none; }
}
@media print {
  .site-footer, .skip-link, .content-tabs { display: none; }
  .tab-panel[hidden] { display: block; }
  .tabs-enabled .panel-title { position: static; width: auto; height: auto; margin: 0 0 22px; clip-path: none; white-space: normal; }
  .publication { break-inside: avoid; }
  .page { width: 100%; min-height: 0; }
  .intro { padding-top: 0; }
  a { text-decoration: none; }
}