:root {
  --ink: #1a2332;
  --muted: #5c6675;
  --paper: #f4f2ec;
  --card: #fffcf7;
  --line: #e2ddd2;
  --navy: #17304d;
  --red: #8d1d2c;
  --red-soft: #f8ebe8;
  --focus: #8d1d2c;
  --serif: "Source Serif 4", "Noto Serif SC", Georgia, serif;
  --sans: "Source Sans 3", "Noto Sans SC", "Segoe UI", sans-serif;
  --width: 1060px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.6;
}

a {
  color: var(--navy);
  text-underline-offset: 0.16em;
}

a:hover { color: var(--red); }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--ink);
  color: white;
  padding: 0.5rem 0.8rem;
  z-index: 10;
}

.skip:focus { top: 1rem; }

.nav {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(244, 242, 236, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.nav-inner,
.wrap,
.footer-inner {
  width: min(var(--width), calc(100% - 2rem));
  margin: 0 auto;
}

.nav-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.55rem 1.25rem;
  padding: 0.85rem 0;
}

.brand {
  font-family: var(--serif);
  font-weight: 650;
  font-size: 1.25rem;
  color: var(--ink);
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
  flex: 1 1 16rem;
  min-width: 0;
  justify-content: flex-end;
}

.nav-links a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.98rem;
}

.nav-links a[aria-current="page"] {
  color: var(--red);
  box-shadow: inset 0 -2px 0 var(--red);
}

main { padding: 1.6rem 0 3rem; }

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

h1 { font-size: 2.35rem; margin: 0 0 0.35rem; }

h2 {
  font-size: 1.55rem;
  margin: 2.2rem 0 0.8rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--line);
}

h3 { font-size: 1.15rem; margin: 0 0 0.4rem; }

p { margin: 0.4rem 0 0.8rem; }

.lede, .role, .muted { color: var(--muted); }

.role { font-size: 0.95rem; }

.zh { font-weight: 500; font-size: 0.72em; margin-left: 0.35rem; }

.hero {
  display: grid;
  grid-template-columns: 168px 1fr;
  gap: 1.5rem;
  align-items: center;
  margin-bottom: 1.4rem;
}

.portrait {
  width: 168px;
  height: 210px;
  object-fit: cover;
  object-position: center top;
  border-radius: 10px;
  background: #ddd;
}

.contact {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
  padding: 0;
  margin: 0.9rem 0 0;
}

.contact a, .tag, .text-tag {
  display: inline-block;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  padding: 0.15rem 0.7rem;
  font-size: 0.92rem;
  text-decoration: none;
}

.contact a:hover, .tag-link:hover { border-color: var(--navy); }

.interests {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  list-style: none;
  padding: 0;
  margin: 0.8rem 0 0;
}

.interests li {
  background: var(--navy);
  color: #f7f4ee;
  border-radius: 999px;
  padding: 0.15rem 0.7rem;
  font-size: 0.9rem;
}

.news, .timeline, .plain, .talks {
  padding-left: 1.15rem;
  font-size: 0.92rem;
  line-height: 1.45;
}

.news li, .timeline li, .talks li, .plain li { margin: 0.28rem 0; }

.news time, .when {
  display: inline;
  margin-right: 0.4rem;
  color: var(--red);
  font-weight: 700;
  font-size: 0.88rem;
  white-space: nowrap;
}

.selected, .pubs { list-style: none; padding: 0; margin: 0; }

.pub {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.15rem 0.7rem;
  padding: 0.38rem 0;
  border-bottom: 1px solid var(--line);
}

.pub-title {
  font-family: var(--serif);
  font-weight: 650;
  font-size: 1rem;
  line-height: 1.3;
  text-decoration: none;
  white-space: nowrap;
}

.pub-title:hover { text-decoration: underline; }

.pub-line {
  flex: 1 1 12rem;
  min-width: 0;
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.35;
}

.pub-line strong, .pub-line .cofirst { color: var(--ink); }

.cite {
  scroll-margin-top: 5.5rem;
  padding: 0.85rem 0 0.7rem;
  border-bottom: 1px solid var(--line);
}

.cite-method {
  margin: 0;
  font-family: var(--serif);
  font-weight: 650;
  font-size: 1.05rem;
  line-height: 1.3;
}

.cite-body {
  margin: 0.2rem 0 0;
  font-size: 0.98rem;
  line-height: 1.5;
}

.cite-meta { margin: 0.4rem 0 0; line-height: 1.7; }

.cite-body strong, .cite-body .cofirst { color: var(--ink); }

.cofirst { text-decoration: underline; text-underline-offset: 0.15em; }

.tag {
  color: var(--red);
  background: var(--red-soft);
  border-color: transparent;
  font-size: 0.75rem;
  font-weight: 650;
  padding: 0.02rem 0.45rem;
  margin: 0 0.15rem;
}

.tag-link { color: var(--navy); background: var(--card); border-color: var(--line); font-weight: 600; }

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card-body { padding: 0.9rem 1rem 1rem; }

.card p { color: var(--muted); font-size: 0.9rem; line-height: 1.45; }

.two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.note {
  background: var(--card);
  border-left: 3px solid var(--navy);
  padding: 0.7rem 0.9rem;
  margin: 0.8rem 0 1rem;
}

.legend { color: var(--muted); font-size: 0.86rem; line-height: 1.4; }

.group-label {
  margin: 1.4rem 0 0.2rem;
  color: var(--red);
  font-family: var(--serif);
  font-size: 1.25rem;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 1.2rem 0 2rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer a { color: var(--navy); }

@media (max-width: 800px) {
  h1 { font-size: 1.85rem; }
  .nav-inner { align-items: flex-start; }
  .nav-links { justify-content: flex-start; flex-basis: 100%; }
  .hero, .cards, .two { grid-template-columns: 1fr; }
  .hero { justify-items: start; }
  .portrait { width: 140px; height: 176px; }
}