:root {
  color-scheme: light;
  --ink: #252727;
  --muted: #555f5e;
  --accent: #225763;
  --rule: #d8dfdd;
  --serif: Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font: 1rem/1.7 var(--sans);
  overflow-wrap: break-word;
}
a { color: var(--accent); text-underline-offset: .2em; }
a:hover { text-decoration-thickness: .13em; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.skip-link {
  position: absolute;
  z-index: 1;
  inset: .5rem auto auto .5rem;
  background: white;
  padding: .5rem 1rem;
  transform: translateY(-160%);
}
.skip-link:focus { transform: none; }
.shell { max-width: 62rem; width: calc(100% - 3rem); margin-inline: auto; }
.site-header { border-bottom: 1px solid var(--rule); }
.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .7rem 2rem;
  padding-block: 1.85rem;
}
.site-name {
  color: var(--ink);
  font: 600 clamp(1.22rem, 3vw, 1.62rem)/1.2 var(--serif);
  text-transform: uppercase;
  letter-spacing: .12em;
  text-decoration: none;
}
nav { display: flex; flex-wrap: wrap; gap: .15rem clamp(.7rem, 2.5vw, 1.7rem); }
nav a {
  color: var(--muted);
  padding-block: .35rem;
  font-size: .83rem;
  font-weight: 650;
  letter-spacing: .055em;
  text-transform: uppercase;
  text-decoration: none;
  border-bottom: 2px solid transparent;
}
nav a:hover, nav a[aria-current="page"] {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
main { min-height: 56vh; padding-block: clamp(2.4rem, 7vw, 5rem); }
h1, h2 { font-family: var(--serif); font-weight: 500; line-height: 1.2; }
h1 { margin: 0 0 1rem; font-size: clamp(2rem, 5.5vw, 3.3rem); }
h2 { margin: 2.1rem 0 .8rem; font-size: clamp(1.3rem, 3vw, 1.75rem); }
p { margin: 0 0 1rem; }
.profile {
  display: grid;
  grid-template-columns: minmax(0, 16rem) minmax(0, 1fr);
  align-items: start;
  gap: clamp(1.75rem, 5vw, 4rem);
}
.portrait { margin: .2rem 0 0; }
.portrait img { display: block; max-width: 100%; height: auto; }
.profile-copy { max-width: 36rem; }
.profile h1 { margin-bottom: .35rem; }
.chinese-name {
  display: inline-block;
  font: 400 clamp(1.05rem, 2vw, 1.35rem)/1.5 var(--sans);
  color: var(--muted);
  vertical-align: .21em;
  margin-left: .25em;
}
.affiliation { color: var(--accent); font-size: 1rem; font-weight: 650; margin-bottom: 1.35rem; }
.profile-links { margin-top: 1.4rem; }
.cv-link {
  display: inline-block;
  padding: .48rem .9rem;
  border: 1px solid var(--accent);
  text-decoration: none;
  font-weight: 600;
}
.cv-link:hover { background: #f1f6f5; }
.cv-link span { font-size: .85em; font-weight: 400; }
.email-line { color: var(--muted); }
.email-line a, .contact-details a { margin-left: .3em; }
.page-content { max-width: 48rem; }
.page-intro, .source-note { color: var(--muted); }
.paper-list { margin: 0; padding: 0; list-style: none; }
.paper-list li { padding: 1.05rem 0; border-top: 1px solid var(--rule); }
.paper-list li:last-child { border-bottom: 1px solid var(--rule); }
.paper-list h3 { margin: 0 0 .25rem; font-size: 1rem; line-height: 1.48; font-weight: 650; }
.paper-list p { margin: .05rem 0; color: var(--muted); }
.paper-link { display: inline-block; margin-top: .22rem; font-size: .92rem; }
.source-note { margin-top: 1.5rem; }
.course-list { margin: 0; padding-left: 1.25rem; }
.contact-details { font-style: normal; }
.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: .25rem 1rem;
  border-top: 1px solid var(--rule);
  padding-block: 1.05rem 1.5rem;
  color: var(--muted);
  font-size: .85rem;
}

@media (max-width: 42rem) {
  .shell { width: calc(100% - 2rem); }
  .header-inner { flex-direction: column; align-items: flex-start; padding-block: 1.2rem; }
  .profile { grid-template-columns: minmax(0, 1fr); }
  .portrait { width: min(12.5rem, 70%); }
}