:root {
  --bg: #ffffff;
  --fg: #111111;
  --muted: #6b6b6b;
  --soft: #8a8a8a;
  --line: #e5e5e5;
  --maxw: 760px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text",
               "Helvetica Neue", "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  text-align: justify;
  text-justify: inter-word;
  hyphens: auto;
  -webkit-hyphens: auto;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Keep headers, nav, meta, etc. left-aligned (justify only makes sense for prose) */
h1, h2, h3,
.nav, .nav-brand, .nav-links,
.page-title, .page-subtitle, .header-links,
.row-meta, .news-date, .pub-num, .pub-tag, .pub-cite,
.plain-list .meta,
.appt-org, .appt-role,
.interest-list li,
footer {
  text-align: left;
  hyphens: manual;
  -webkit-hyphens: manual;
}
.appt-date {
  text-align: right;
  hyphens: manual;
  -webkit-hyphens: manual;
}

a {
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.2s ease;
}
a:hover { border-bottom-color: var(--fg); }

main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 48px 24px 120px;
}

/* Top navigation */
.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 24px 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  flex-wrap: wrap;
}
.nav-brand {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  border-bottom: none;
}
.nav-brand:hover { border-bottom: none; }
.nav-links {
  display: flex;
  gap: 24px;
  font-size: 14px;
}
.nav-links a {
  color: var(--muted);
  border-bottom-color: transparent;
}
.nav-links a:hover {
  color: var(--fg);
  border-bottom-color: var(--fg);
}
.nav-links a.active {
  color: var(--fg);
  border-bottom-color: var(--fg);
}

/* Page header */
.page-header { margin-bottom: 48px; }
.page-title {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}
.page-subtitle {
  color: var(--muted);
  margin: 0 0 16px;
  font-size: 16px;
}

/* Home header with avatar */
.home-header {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-bottom: 48px;
}
.home-header .avatar {
  width: 112px;
  height: 112px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--line);
}
.home-header .home-header-text {
  flex: 1;
  min-width: 0;
}
.home-header .page-title,
.home-header .page-subtitle {
  margin-top: 0;
}
.header-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
}
.header-links a {
  color: var(--muted);
  border-bottom-color: transparent;
}
.header-links a:hover {
  color: var(--fg);
  border-bottom-color: var(--fg);
}

/* Sections */
section { margin-bottom: 56px; }
h2 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

p { margin: 0 0 16px; }
p:last-child { margin-bottom: 0; }
em { font-style: italic; }
strong { font-weight: 600; }

/* News */
.news-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 15px;
}
.news-list li {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 16px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}
.news-list li:last-child { border-bottom: none; }
.news-date {
  color: var(--soft);
  font-variant-numeric: tabular-nums;
}

/* Two-column section: Experience + Research Interests side by side */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}
.two-col > section { margin-bottom: 0; }
@media (max-width: 600px) {
  .two-col {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .two-col > section { margin-bottom: 56px; }
  .two-col > section:last-child { margin-bottom: 56px; }
}

/* Appointment-style rows: org + role on left, italic date on right */
.appt-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.appt-item {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  column-gap: 16px;
  row-gap: 2px;
  align-items: start;
  padding: 10px 0;
}
.appt-org {
  grid-row: 1;
  grid-column: 1;
  font-weight: 600;
  font-size: 16px;
  color: var(--fg);
  text-align: left;
}
.appt-role {
  grid-row: 2;
  grid-column: 1;
  color: var(--muted);
  font-size: 14px;
  text-align: left;
}
.appt-date {
  grid-row: 2;
  grid-column: 2;
  font-style: italic;
  color: var(--soft);
  font-size: 13px;
  white-space: nowrap;
  text-align: right;
}

/* Research topics plain list (no bullets) */
.interest-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 16px;
}
.interest-list li {
  padding: 6px 0;
  color: var(--fg);
}

/* Two-column rows (Education / Experience) */
.row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.row:last-child { border-bottom: none; }
.row-title {
  font-weight: 600;
  font-size: 16px;
}
.row-meta {
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}
.row-sub {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 14px;
  margin-top: -4px;
}

/* Publications */
.pub {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}
.pub:last-child { border-bottom: none; }
.pub-num {
  color: var(--soft);
  font-variant-numeric: tabular-nums;
  margin-right: 6px;
}
.pub-authors { color: var(--fg); }
.pub-authors .me {
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.pub-title { color: var(--fg); }
.pub-venue {
  color: var(--muted);
  font-style: italic;
}
.pub-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 1px 6px;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--muted);
  margin-left: 6px;
  vertical-align: 1px;
  white-space: nowrap;
}
.pub-cite {
  font-size: 13px;
  color: var(--soft);
  margin-left: 6px;
}

/* Projects */
.project {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.project:last-child { border-bottom: none; }
.project-title {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 4px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}
.project-meta {
  font-size: 13px;
  color: var(--muted);
  font-weight: 400;
  white-space: nowrap;
}
.project-desc {
  color: var(--muted);
  margin: 4px 0 0;
}

/* Honors / Service / plain lists */
.plain-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 15px;
}
.plain-list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 24px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}
.plain-list li:last-child { border-bottom: none; }
.plain-list .meta {
  color: var(--soft);
  font-size: 13px;
  white-space: nowrap;
}

/* Contact */
.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 12px 24px;
  font-size: 15px;
}
.contact-list dt { color: var(--muted); }
.contact-list dd { margin: 0; }

/* "See all" link block */
.see-all {
  margin-top: 16px;
  font-size: 14px;
  color: var(--muted);
}
.see-all a {
  color: var(--muted);
  border-bottom-color: transparent;
}
.see-all a:hover {
  color: var(--fg);
  border-bottom-color: var(--fg);
}

/* Affiliations / partner logos */
.logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 32px 48px;
  padding: 24px 0;
  margin-top: 24px;
}
.logos img {
  height: 48px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  opacity: 0.65;
  filter: grayscale(100%);
  transition: opacity 0.2s ease, filter 0.2s ease;
}
.logos a {
  border-bottom: none;
  display: inline-flex;
  align-items: center;
}
.logos a:hover { border-bottom: none; }
.logos a:hover img,
.logos img:hover {
  opacity: 1;
  filter: grayscale(0%);
}
@media (max-width: 600px) {
  .logos { gap: 24px 32px; }
  .logos img { height: 36px; max-width: 120px; }
}

/* Footer */
footer {
  max-width: var(--maxw);
  margin: 80px auto 0;
  padding: 24px 24px 40px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* Responsive */
@media (max-width: 600px) {
  main { padding: 32px 20px 80px; }
  .nav { padding: 16px 20px 0; gap: 12px; }
  .nav-links { gap: 16px; }
  .page-title { font-size: 24px; }
  .home-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .home-header .avatar {
    width: 96px;
    height: 96px;
  }
  .news-list li { grid-template-columns: 72px 1fr; gap: 12px; }
  .row { grid-template-columns: 1fr; }
  .row-meta { font-size: 13px; }
  .plain-list li { grid-template-columns: 1fr; gap: 2px; }
  .contact-list {
    grid-template-columns: 1fr;
    gap: 2px 0;
  }
  .contact-list dd { margin-bottom: 10px; }
  .project-title {
    flex-direction: column;
    gap: 2px;
  }
  footer { padding: 20px 20px 30px; }
}

::selection {
  background: var(--fg);
  color: var(--bg);
}