@font-face {
  font-family: Newsreader;
  src: url("assets/fonts/newsreader-regular.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Source Sans 3";
  src: url("assets/fonts/source-sans-regular.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Source Sans 3";
  src: url("assets/fonts/source-sans-semibold.ttf") format("truetype");
  font-weight: 600 900;
  font-display: swap;
}

@font-face {
  font-family: "Website WenKai";
  src: url("assets/fonts/wenkai-names.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  unicode-range: U+5149, U+6768, U+73D6;
}

:root {
  color-scheme: light;
  --paper: #fafafa;
  --ink: #282828;
  --secondary: #626262;
  --page-width: 960px;
  --header-height: 76px;
  font-family: "Source Sans 3", sans-serif;
  color: var(--ink);
  background: var(--paper);
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 28px);
}

@media screen and (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --paper: #181818;
    --ink: #e7e7e7;
    --secondary: #aaaaaa;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; font-size: 1.125rem; line-height: 1.6; }
a { color: inherit; text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 5px; }
strong { font-weight: 600; }
[lang="zh-Hans"] { font-family: "Website WenKai", sans-serif; }
p { margin: 0 0 1rem; }
.container { width: min(var(--page-width), calc(100% - 64px)); margin-inline: auto; }

.site-header { position: sticky; top: 0; z-index: 10; background: var(--paper); }
.site-header nav { display: flex; flex-wrap: wrap; gap: 12px 32px; padding-block: 22px; }
.site-header a { display: inline-block; text-decoration: none; }
.site-header a[aria-current] { text-decoration: underline; }
.skip-link { position: fixed; top: 8px; left: 16px; z-index: 20; padding: 8px 16px; background: var(--paper); transform: translateY(-200%); }
.skip-link:focus { transform: translateY(0); }

main { padding-top: 60px; padding-bottom: 100px; }
main > section + section { margin-top: 68px; }
h1, h2 { font-family: Newsreader, Georgia, serif; font-weight: 400; line-height: 1.15; }
h1 { font-size: clamp(2.5rem, 5vw, 3.25rem); margin: 0 0 10px; }
h2 { font-size: 2rem; margin: 0 0 27px; }
.intro { display: grid; grid-template-columns: minmax(0, 1fr) 220px; gap: 56px; align-items: start; }
.biography { grid-column: 1; grid-row: 1; }
.portrait { grid-column: 2; grid-row: 1; width: 100%; height: auto; aspect-ratio: 1; object-fit: cover; object-position: 50% 42%; border-radius: 8px; }
.affiliation { color: var(--secondary); margin-bottom: 26px; }
.social-links, .paper-links { display: flex; flex-wrap: wrap; gap: 6px 22px; }
.social-links { margin-top: 24px; font-size: 1rem; }

.news-list { list-style: none; padding: 0; margin: 0; }
.news-list li { display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: 24px; margin-bottom: 16px; }
.news-list p { margin: 0; }
.news-list time { color: var(--secondary); white-space: nowrap; font-size: 1rem; padding-top: 2px; }
.news-toggle { display: block; margin: 0 0 0 114px; padding: 7px 0; border: 0; border-radius: 0; background: none; color: var(--ink); font: inherit; font-size: 1rem; cursor: pointer; }
.news-toggle:hover { text-decoration: underline; text-underline-offset: 0.18em; }

.publications article + article { margin-top: 31px; }
.publications h3 { font-size: 1.2rem; line-height: 1.4; font-weight: 600; margin: 0 0 7px; }
.authors { margin-bottom: 5px; font-size: 1.0625rem; line-height: 1.5; }
.venue { color: var(--secondary); font-size: 1rem; margin-bottom: 5px; }
.publication-honor { color: var(--ink); }
.contribution { margin-left: 6px; }
.paper-links { font-size: 1rem; }

main > .disambiguation-section { margin-top: 24px; color: var(--secondary); font-size: 1rem; }
.disambiguation summary { width: fit-content; cursor: pointer; }
.disambiguation p { margin-top: 18px; }
.disambiguation ul { margin: 0; padding-left: 22px; }
.disambiguation li + li { margin-top: 12px; }

/* Added only by JavaScript; content remains readable when scripting is unavailable. */
.reveal-pending { opacity: 0; }

@media print {
  .reveal-pending { opacity: 1; }
}

@media (max-width: 740px) {
  .container { width: calc(100% - 40px); }
  .site-header nav { gap: 24px; padding-block: 18px; }
  main { padding-top: 30px; padding-bottom: 64px; }
  .intro { display: flex; flex-direction: column; gap: 30px; }
  .portrait { width: 180px; height: 180px; }
  main > section + section { margin-top: 52px; }
  .news-list li { grid-template-columns: 75px minmax(0, 1fr); gap: 16px; }
  .news-toggle { margin-left: 91px; }
}

@media (max-width: 380px) {
  .news-list li { grid-template-columns: 1fr; gap: 3px; }
  .news-toggle { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  :root { scroll-behavior: auto; }
  .reveal-pending { opacity: 1; }
}