:root {
  --navy: #17324d;
  --navy-soft: #edf2f6;
  --red: #8a433f;
  --text: #24282c;
  --muted: #697078;
  --line: #d9dde1;
  --background: #fff;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua",
    "Songti SC", "Noto Serif SC", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --page-width: 1160px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 82px;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--background);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.74;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--navy);
  text-underline-offset: 3px;
}

button { font: inherit; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 7px;
  left: 7px;
  padding: 7px 12px;
  color: #fff;
  background: var(--navy);
  transform: translateY(-150%);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-top: 4px solid var(--navy);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .97);
}

.header-inner {
  display: flex;
  width: min(calc(100% - 40px), var(--page-width));
  min-height: 68px;
  align-items: center;
  margin: 0 auto;
}

.brand {
  display: flex;
  min-width: 220px;
  flex-direction: column;
  color: var(--text);
  line-height: 1.18;
  text-decoration: none;
}

.brand-name {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
}

.brand-school {
  color: var(--muted);
  font-size: 14px;
}

.desktop-nav {
  display: flex;
  gap: 19px;
  margin-left: auto;
}

.desktop-nav a {
  color: #4d5358;
  font-size: 15px;
  text-decoration: none;
}

.desktop-nav a:hover { color: var(--navy); }

.header-actions {
  display: flex;
  margin-left: 22px;
}

.language-switch {
  min-width: 52px;
  padding: 5px 9px;
  border: 1px solid #bdc3c8;
  color: var(--navy);
  background: #fff;
  cursor: pointer;
  font-size: 14px;
}

.menu-toggle {
  display: none;
  width: 35px;
  height: 32px;
  margin-left: 7px;
  padding: 6px 8px;
  border: 1px solid var(--line);
  background: #fff;
}

.menu-toggle span {
  display: block;
  width: 16px;
  height: 1px;
  margin: 4px 0;
  background: var(--text);
}

.mobile-nav {
  width: min(calc(100% - 40px), var(--page-width));
  margin: 0 auto;
  padding-bottom: 13px;
}

.mobile-nav a {
  display: block;
  padding: 6px 0;
  border-bottom: 0;
  color: var(--text);
  font-size: 15px;
  text-decoration: none;
}

.page-layout {
  display: grid;
  width: min(calc(100% - 40px), var(--page-width));
  margin: 0 auto;
  padding: 54px 0 80px;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 72px;
}

.profile-column {
  position: sticky;
  top: 102px;
  align-self: start;
}

.profile-photo {
  display: block;
  width: 210px;
  height: 270px;
  object-fit: cover;
  object-position: center 42%;
  border: 1px solid var(--line);
}

.profile-column h1 {
  margin: 17px 0 0;
  color: var(--navy);
  font-family: var(--serif);
  font-size: 31px;
  line-height: 1.2;
}

.chinese-name {
  margin: 1px 0 12px;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 18px;
}

.profile-title {
  margin: 0;
  white-space: nowrap;
  font-size: 16px;
  font-weight: 600;
}

.profile-unit {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.profile-details {
  margin: 22px 0 0;
  padding-top: 17px;
  border-top: 2px solid var(--navy);
}

.profile-details div { margin-bottom: 14px; }

.profile-details dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.profile-details dd {
  margin: 2px 0 0;
  font-size: 14px;
}

.content-column { min-width: 0; }

.recruitment {
  padding: 24px 26px;
  margin-bottom: 48px;
  border-top: 4px solid var(--navy);
  background: var(--navy-soft);
}

.section-eyebrow {
  margin: 0 0 2px;
  color: var(--red);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

html[lang="zh-CN"] .section-eyebrow {
  letter-spacing: .08em;
}

.recruitment h2 {
  margin: 0;
  color: var(--navy);
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 400;
}

.recruitment-heading {
  margin-bottom: 17px;
}

.recruitment > a {
  display: inline-block;
  margin-top: 17px;
  font-size: 14px;
  font-weight: 600;
}

.recruitment-details {
  margin: 0;
}

.recruitment-details div {
  display: grid;
  padding: 8px 0;
  border-bottom: 1px solid #d5dde4;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 20px;
}

.recruitment-details dt {
  color: var(--navy);
  font-weight: 650;
}

.recruitment-details dd {
  margin: 0;
}

.academic-section {
  padding-bottom: 38px;
  margin-bottom: 38px;
}

.academic-section > h2,
.section-heading-row h2 {
  margin: 0 0 22px;
  color: var(--navy);
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 400;
  line-height: 1.3;
}

.academic-section > h2::after,
.section-heading-row h2::after {
  display: block;
  width: 44px;
  height: 2px;
  margin-top: 10px;
  background: var(--red);
  content: "";
}

.section-heading-row {
  position: relative;
  margin-bottom: 22px;
}

.section-heading-row h2 { margin-bottom: 0; }

.section-heading-row > a {
  position: absolute;
  right: 0;
  top: 7px;
  font-size: 13px;
}

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

.prose p {
  margin: 0 0 14px;
  text-align: justify;
}

.news-list,
.project-list,
.plain-list,
.student-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.news-list li {
  display: grid;
  padding: 6px 0;
  grid-template-columns: 72px 1fr;
  gap: 10px;
}

.news-list time {
  color: var(--red);
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
}

.publication-list {
  margin: 0;
  padding-left: 26px;
}

.publication-list li {
  padding: 0 0 10px 5px;
  margin-bottom: 16px;
}

.publication-list li:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
}

.publication-list li::marker {
  color: var(--red);
  font-family: var(--serif);
  font-weight: 700;
}

.publication-list p {
  margin: 1px 0;
  font-size: 14.5px;
  line-height: 1.55;
}

.paper-title {
  color: var(--navy);
  font-family: var(--serif);
  font-size: 18px !important;
  font-weight: 700;
}

.venue { color: var(--muted); }
.venue span { color: var(--red); font-weight: 600; }

.project-list li {
  display: grid;
  padding: 9px 0;
  grid-template-columns: 90px 1fr;
  gap: 15px;
}

.project-list li:first-child { padding-top: 0; }
.project-list time {
  color: var(--red);
  font-family: var(--serif);
  font-size: 17px;
}

.project-list strong,
.project-list span { display: block; }
.project-list strong { font-size: 17px; }
.project-list span { margin-top: 2px; color: var(--muted); font-size: 14.5px; }

.plain-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px 25px;
}

.plain-list li {
  position: relative;
  padding-left: 13px;
}

.plain-list li::before {
  position: absolute;
  left: 0;
  color: var(--red);
  content: "▪";
}

.student-list li {
  padding: 8px 0;
}

.student-list li:first-child { padding-top: 0; }
.student-list strong, .student-list strong > span, .student-list span { display: block; }
.student-list strong { color: var(--navy); font-family: var(--serif); font-size: 17px; }
.student-list strong a { color: var(--navy); }
.student-list > li > span { color: var(--muted); font-size: 14.5px; }

footer {
  display: flex;
  width: min(calc(100% - 40px), var(--page-width));
  min-height: 70px;
  align-items: center;
  justify-content: space-between;
  margin: 0 auto;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 14px;
}

footer a { color: var(--muted); }

.last-updated {
  color: var(--muted);
}

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

@media (max-width: 900px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: block; }
}

@media (max-width: 700px) {
  .header-inner,
  .mobile-nav,
  .page-layout,
  footer {
    width: min(calc(100% - 30px), var(--page-width));
  }

  .brand { min-width: 0; }
  .brand-name { font-size: 16px; }
  .brand-school { font-size: 10px; }
  .header-actions { margin-left: auto; }

  .page-layout {
    display: block;
    padding-top: 36px;
  }

  .profile-column {
    display: grid;
    position: static;
    padding-bottom: 32px;
    margin-bottom: 32px;
    border-bottom: 1px solid var(--line);
    grid-template-columns: 112px 1fr;
    column-gap: 18px;
  }

  .profile-photo {
    width: 112px;
    height: 145px;
    grid-row: 1 / 6;
  }

  .profile-column h1 { margin-top: 0; font-size: 24px; }
  .chinese-name { margin-bottom: 5px; }
  .profile-title, .profile-unit { font-size: 12px; }
  .profile-details { margin-top: 15px; grid-column: 1 / -1; }

  .recruitment {
    padding: 20px;
  }

  .recruitment-details div {
    grid-template-columns: 1fr;
    gap: 1px;
  }

  .academic-section > h2,
  .section-heading-row {
    margin-bottom: 20px;
  }

  .prose p { text-align: left; }
}

@media (max-width: 440px) {
  .news-list li { grid-template-columns: 65px 1fr; }
  .plain-list { grid-template-columns: 1fr; }
  .project-list li { grid-template-columns: 1fr; gap: 2px; }
  footer { align-items: flex-start; flex-direction: column; justify-content: center; gap: 2px; }
}