:root {
  --accent: #224b8d;
  --accent-dark: #173765;
  --accent-soft: #eaf0f8;
  --attention: #c43d2f;
  --text: #484f56;
  --heading: #272d33;
  --muted: #66717b;
  --line: #eceff1;
  --line-strong: #bcc3c9;
  --surface: #ffffff;
  --header-height: 70px;
  --container: 1290px;
  --image-shadow: 3px 3px 8px rgba(45, 55, 66, 0.28);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  font-size: 15px;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--surface);
  font-family: "Trebuchet MS", Helvetica, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.55;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.12em;
  overflow-wrap: anywhere;
}

a:hover, a:focus-visible { color: var(--accent-dark); }
strong { color: var(--heading); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.navbar {
  min-height: var(--header-height);
  padding: 0.6rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  color: var(--heading);
  font-size: 1.02rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.brand:hover, .brand:focus-visible { color: var(--heading); }

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.15rem;
}

.nav-links a {
  position: relative;
  margin: 0 0.62rem;
  padding: 0.5rem 0;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
}

.nav-links a::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 3px;
  background: var(--line-strong);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 180ms ease;
}

.nav-links a:hover::after, .nav-links a:focus-visible::after { transform: scaleX(1); }

.nav-toggle {
  display: none;
  width: 40px;
  height: 38px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: #fff;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span { width: 18px; height: 2px; background: var(--muted); }

.site-layout {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 15px;
  display: grid;
  grid-template-columns: minmax(220px, 293px) minmax(0, 1fr);
  column-gap: 30px;
  align-items: start;
}

.profile-column {
  position: sticky;
  top: 96px;
  min-width: 0;
}

.profile-card { padding: 2rem 0 1rem; }

.avatar {
  display: block;
  width: min(180px, 72vw);
  height: min(180px, 72vw);
  margin: 0 0 0.9rem;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 50%;
  object-fit: cover;
  object-position: center 36%;
  background: #fff;
}

.profile-card h1 {
  margin: 0 0 0.18rem;
  color: var(--heading);
  font-size: 1.48rem;
  line-height: 1.2;
}

.name-cn { margin: 0 0 0.55rem; color: var(--muted); }
.profile-role { margin: 0 0 1rem; color: var(--heading); line-height: 1.42; }

.profile-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.48rem;
}

.profile-links li {
  display: grid;
  grid-template-columns: 1.35rem minmax(0, 1fr);
  gap: 0.35rem;
  align-items: start;
  font-size: 0.95rem;
  line-height: 1.35;
}

.profile-icon {
  color: #111820;
  font-size: 0.75rem;
  font-weight: 800;
  line-height: 1.55rem;
  text-align: center;
}

.profile-links a { color: inherit; text-decoration: none; }
.profile-links a:hover, .profile-links a:focus-visible { color: var(--accent); text-decoration: underline; }

.content-column { min-width: 0; padding-top: 30px; }

.section {
  padding: 1.6rem 0 1.85rem;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-height) + 1rem);
}

.about-section { padding-top: 0.8rem; }

h2 {
  margin: 0 0 0.78rem;
  padding-bottom: 0.45rem;
  border-bottom: 1px solid var(--line);
  color: var(--heading);
  font-size: 1.35rem;
  line-height: 1.2;
}

.about-copy { max-width: 950px; }
.about-copy p { margin: 0 0 0.65rem; }
.venue-line { color: var(--muted); font-size: 0.94rem; }
.notice-line { color: var(--attention); font-weight: 700; }
.attention-highlight { color: var(--attention); font-weight: 700; }

.quick-facts {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0.85rem 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.quick-facts strong { display: block; margin-bottom: 0.1rem; font-size: 0.96rem; }
.quick-facts span { display: block; color: var(--muted); font-size: 0.92rem; line-height: 1.45; }

.news-list { margin: 0; padding-left: 1.35rem; }
.news-list li { margin-bottom: 0.48rem; padding-left: 0.1rem; }
.news-list time { color: var(--heading); font-style: italic; font-weight: 700; }
.news-list time::after { content: ": "; }

.split-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.6rem;
  padding-bottom: 0.45rem;
  border-bottom: 1px solid var(--line);
}

.split-heading h2 { margin: 0; padding: 0; border: 0; }
.all-link { color: var(--muted); font-size: 0.9rem; white-space: nowrap; }

.citation-overview {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.55rem;
  align-items: center;
  margin: -0.25rem 0 0.75rem;
}
.citation-overview .metric-link { vertical-align: middle; }
.citation-stats { color: var(--muted); font-size: 0.92rem; }
.metric-link {
  display: inline-flex;
  align-items: center;
  min-height: 20px;
  color: inherit;
  text-decoration: none;
}
.metric-link:hover, .metric-link:focus { text-decoration: none; }
.metric-link img { display: block; height: 20px; max-width: 100%; }

.publication-fields { display: grid; gap: 1.1rem; }
.publication-field { display: grid; gap: 0.55rem; }
.publication-field + .publication-field { padding-top: 0.7rem; }

.publication-field-heading {
  margin: 0.35rem 0 0;
  color: var(--heading);
  font-size: 1.08rem;
  line-height: 1.25;
}

.publication { 
  display: grid;
  grid-template-columns: minmax(250px, 42%) minmax(0, 1fr);
  gap: 1.4rem;
  align-items: center;
  padding: 1.45rem 0;
  border-bottom: 1px solid #efefef;
}

.publication:last-child { border-bottom: 0; }

.pub-figure {
  position: relative;
  display: block;
  width: 100%;
  max-width: 360px;
  color: inherit;
  text-decoration: none;
}

.pub-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
  box-shadow: var(--image-shadow);
  transition: box-shadow 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.pub-figure:hover img, .pub-figure:focus-visible img {
  border-color: var(--line-strong);
  box-shadow: 0 8px 18px rgba(28, 43, 61, 0.24);
  transform: translateY(-2px);
}

.badge {
  position: absolute;
  z-index: 2;
  top: 0.5rem;
  left: -0.5rem;
  display: inline-flex;
  align-items: center;
  min-height: 1.65rem;
  padding: 0.2rem 0.55rem;
  color: #fff;
  background: #00369f;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  font-size: 0.76rem;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
}

.pub-body { min-width: 0; }

.pub-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0 0 0.35rem;
}
.meta-chip {
  display: inline-flex;
  align-items: center;
  min-height: 1.45rem;
  padding: 0.18rem 0.48rem;
  border-radius: 3px;
  color: #475061;
  background: #eef0f4;
  font-size: 0.76rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
}
.meta-chip:hover, .meta-chip:focus-visible { color: var(--accent-dark); text-decoration: none; }

.publication h3 {
  margin: 0 0 0.34rem;
  color: var(--heading);
  font-size: 1.04rem;
  line-height: 1.33;
}

.publication h3 a { color: var(--accent); }
.authors { margin: 0 0 0.35rem; font-size: 0.94rem; }
.pub-note { margin: 0 0 0.55rem; font-size: 0.96rem; line-height: 1.45; }
.pub-summary {
  list-style: none;
  margin: 0 0 0.62rem;
  padding: 0;
  color: var(--text);
  font-size: 0.96rem;
}
.pub-summary li {
  position: relative;
  margin: 0 0 0.22rem;
  padding-left: 0.95rem;
  line-height: 1.42;
}
.pub-summary li::before {
  content: "";
  position: absolute;
  top: 0.62em;
  left: 0.15rem;
  width: 0.34rem;
  height: 0.34rem;
  border-radius: 50%;
  background: var(--accent);
}
.pub-summary li:last-child { margin-bottom: 0; }
.pub-summary strong { color: var(--accent-dark); }
.pub-links { display: flex; flex-wrap: wrap; gap: 0.35rem 0.7rem; }
.pub-links a { font-size: 0.92rem; }
.pub-links a::before { content: "["; color: var(--muted); text-decoration: none; }
.pub-links a::after { content: "]"; color: var(--muted); text-decoration: none; }

.focus-item {
  margin-bottom: 0.9rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
}

.focus-item:last-child { margin: 0; padding: 0; border: 0; }
.focus-item h3 { margin: 0 0 0.2rem; color: var(--heading); font-size: 1.04rem; }
.focus-item p { margin: 0; }
.focus-item p + p { margin-top: 0.45rem; }
.focus-subtitle { margin: 0 0 0.3rem !important; color: var(--muted); }

.timeline { display: grid; gap: 0.85rem; }
.timeline-item {
  display: grid;
  grid-template-columns: 9rem minmax(0, 1fr);
  gap: 1rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
}
.timeline-item:last-child { padding: 0; border: 0; }
.timeline-date { color: var(--heading); font-style: italic; }
.timeline-item h3 { margin: 0 0 0.18rem; color: var(--heading); font-size: 1.04rem; }
.timeline-item p { margin: 0; }
.timeline-item p + p { margin-top: 0.28rem; }

.visitor-panel {
  display: grid;
  grid-template-columns: minmax(220px, 0.72fr) minmax(300px, 1.28fr);
  gap: 1.2rem;
  align-items: start;
}
.visitor-location { min-width: 0; }
.visitor-location h3 { margin: 0 0 0.3rem; color: var(--heading); font-size: 1.04rem; }
.visitor-location p { margin: 0 0 0.55rem; }
.visitor-note { color: var(--muted); font-size: 0.91rem; }
.visitor-map { display: block; width: 100%; color: inherit; text-decoration: none; }
.visitor-map img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
}

.site-footer { padding: 1.5rem 0 1.9rem; color: var(--muted); text-align: center; font-size: 0.88rem; }
.site-footer p { margin: 0; }

:focus-visible { outline: 3px solid rgba(34, 75, 141, 0.3); outline-offset: 3px; }

@media (max-width: 1100px) {
  .site-layout { grid-template-columns: minmax(200px, 260px) minmax(0, 1fr); column-gap: 2.4rem; }
  .publication { grid-template-columns: minmax(230px, 40%) minmax(0, 1fr); }
}

@media (max-width: 900px) {
  .navbar { padding: 0.45rem 1rem; flex-wrap: wrap; }
  .nav-toggle { display: inline-flex; }
  .nav-links { display: none; width: 100%; flex-direction: column; align-items: stretch; gap: 0; padding-top: 0.25rem; }
  .nav-links.is-open { display: flex; }
  .nav-links a { min-height: 40px; margin: 0; padding: 0.55rem 0; border-top: 1px solid var(--line); }
  .nav-links a::after { display: none; }
  .site-layout { max-width: 100%; padding: 2rem 1rem 0; grid-template-columns: 1fr; gap: 1.5rem; }
  .profile-column { position: static; }
  .profile-card { padding: 0 0 1.1rem; border-bottom: 1px solid var(--line); }
  .avatar { width: 150px; height: 150px; }
  .profile-links { max-width: 560px; }
  .content-column { padding-top: 0; }
  .publication { grid-template-columns: 1fr; gap: 0.8rem; align-items: start; }
  .pub-body { order: 1; }
  .pub-figure { order: 2; max-width: 420px; }
  .visitor-panel { grid-template-columns: 1fr; gap: 0.85rem; }
}

@media (max-width: 620px) {
  html { font-size: 14.5px; }
  .section { padding: 1.35rem 0 1.55rem; }
  h2 { font-size: 1.25rem; }
  .quick-facts { grid-template-columns: 1fr; gap: 0.55rem; }
  .split-heading { align-items: flex-start; flex-direction: column; gap: 0.35rem; }
  .all-link { white-space: normal; }
  .news-list { padding-left: 1.05rem; }
  .timeline-item { grid-template-columns: 1fr; gap: 0.15rem; }
  .badge { left: -0.35rem; max-width: calc(100% - 0.2rem); font-size: 0.7rem; white-space: normal; }
}

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