@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600;700&display=swap");

:root {
  --site-background: #f2f6f7;
  --site-navbar: #f8fafb;
  --site-text: #172026;
  --site-text-soft: #435158;
  --site-border: #dce4e7;
  --site-font: "Noto Sans SC", "Source Han Sans SC", "思源黑体 CN", "PingFang SC", "Microsoft YaHei", sans-serif;
}

html {
  background: var(--site-background);
  scroll-padding-top: 5rem;
}

body {
  background: var(--site-background);
  color: var(--site-text);
  font-family: var(--site-font);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.75;
}

body,
button,
input,
select,
textarea,
h1,
h2,
h3,
h4,
h5,
h6,
.navbar,
.navbar-brand,
.nav-link {
  font-family: var(--site-font);
}

h1,
h2,
h3,
h4,
h5,
h6,
a,
.navbar-brand,
.navbar-nav .nav-link {
  color: var(--site-text);
}

a:hover,
a:focus,
.navbar-nav .nav-link.active,
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  color: var(--site-text);
  opacity: 0.68;
}

.navbar {
  background: var(--site-navbar);
  border-bottom: 1px solid var(--site-border);
  box-shadow: none;
  min-height: 4.5rem;
  padding: 0.75rem 0;
  position: sticky;
  top: 0;
  z-index: 1030;
}

#quarto-header,
#quarto-header.headroom--unpinned {
  background: var(--site-navbar);
  transform: translateY(0) !important;
}

.navbar-brand {
  font-size: 1.25rem;
  font-weight: 700;
}

.navbar-nav .nav-link {
  font-size: 0.98rem;
  font-weight: 500;
  margin-left: 1rem;
}

.quarto-title-banner {
  background: var(--site-background);
  border-bottom: 1px solid var(--site-border);
  color: var(--site-text);
  padding: clamp(3rem, 8vw, 5rem) 0;
}

.quarto-title-banner h1.title {
  color: var(--site-text);
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
}

#quarto-content {
  background: var(--site-background);
  min-height: calc(100vh - 4.5rem);
}

body.wdc-home #title-block-header {
  display: none;
}

body.people-page #title-block-header {
  display: none;
}

.home-simple {
  margin: 0 auto;
  max-width: 1000px;
  min-height: calc(100vh - 4.5rem);
  padding: clamp(6.5rem, 14vh, 10rem) 1.5rem clamp(8rem, 18vh, 13rem);
}

.home-simple h1 {
  color: var(--site-text);
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.25;
  margin: 0;
  text-align: center;
}

.home-pi {
  color: var(--site-text);
  font-size: clamp(1.35rem, 2.4vw, 1.7rem);
  font-weight: 600;
  margin-top: 1.5rem;
  text-align: left;
}

.home-pi p {
  margin: 0;
}

.home-summary {
  color: var(--site-text-soft);
  font-size: 1.05rem;
  line-height: 1.85;
  margin-top: 2.6rem;
  max-width: 760px;
  text-align: left;
}

.home-summary p {
  margin: 0;
}

.people-page-shell {
  margin: 0 auto;
  max-width: 1100px;
  padding: clamp(1.5rem, 2.7vw, 2.3rem) 1.5rem 7rem;
}

.people-page-shell > h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 clamp(2.5rem, 5vw, 4rem);
}

.faculty-list {
  border-top: 1px solid var(--site-border);
}

.faculty-profile {
  align-items: start;
  display: grid;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  grid-template-columns: 230px minmax(0, 1fr);
  padding: clamp(2.5rem, 5vw, 4rem) 0;
}

.faculty-photo-wrap {
  max-width: 230px;
}

.faculty-photo-wrap p {
  margin: 0;
}

.faculty-photo {
  aspect-ratio: 1 / 1;
  border: 1px solid var(--site-border);
  border-radius: 3px;
  display: block;
  object-fit: cover;
  width: 100%;
}

.huang-photo {
  object-position: 50% 38%;
}

.wu-photo {
  object-position: 50% 36%;
}

.faculty-social-links {
  display: flex;
  gap: 0.55rem;
  justify-content: flex-start;
  margin-top: 0.5rem;
}

.faculty-social-links a {
  align-items: center;
  border: 1px solid var(--site-border);
  border-radius: 50%;
  color: var(--site-text-soft);
  display: inline-flex;
  height: 2rem;
  justify-content: center;
  text-decoration: none;
  width: 2rem;
}

.faculty-social-links a:hover,
.faculty-social-links a:focus-visible {
  background: var(--site-navbar);
  border-color: var(--site-text-soft);
  color: var(--site-text);
}

.faculty-social-links .bi {
  font-size: 0.9rem;
  line-height: 1;
}

.faculty-history {
  color: var(--site-text);
  font-size: 0.84rem;
  line-height: 1.25;
  margin-top: 0.75rem;
}

.faculty-social-links + .faculty-history {
  margin-top: 0.5rem;
}

.history-item {
  margin-bottom: 0.38rem;
}

.history-item:last-child {
  margin-bottom: 0;
}

.history-date,
.history-detail {
  display: block;
}

.history-date {
  color: var(--site-text-soft);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.faculty-copy {
  align-self: start;
  min-height: 230px;
  padding-top: 0;
}

.faculty-copy h2 {
  border: 0;
  font-size: clamp(1.2rem, 2vw, 1.45rem);
  font-weight: 600;
  line-height: 1.2;
  margin: 0;
  padding: 0;
}

.faculty-bio {
  font-weight: 400;
  margin-top: 0.75rem;
  max-width: 780px;
}

.faculty-bio p {
  line-height: 1.45;
  margin: 0 0 0.5rem;
}

.faculty-bio p:last-child {
  margin-bottom: 0;
}

.faculty-courses,
.faculty-projects {
  margin-top: 0.9rem;
  max-width: 760px;
}

.faculty-courses h3,
.faculty-projects h3 {
  font-size: 1.08rem;
  font-weight: 600;
  margin: 0 0 0.8rem;
}

.faculty-courses p {
  line-height: 1.45;
  margin: 0;
}

.faculty-projects ol {
  margin: 0;
  padding-left: 1.45rem;
}

.faculty-projects li {
  line-height: 1.4;
  margin-bottom: 0.35rem;
  padding-left: 0.25rem;
}

.faculty-projects li:last-child {
  margin-bottom: 0;
}

body.publications-page-body .quarto-title-banner {
  padding: clamp(2.5rem, 6vw, 4rem) 0;
}

body.publications-page-body .quarto-title-banner h1.title {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 600;
}

body.publications-page-body #title-block-header,
body.contact-page-body #title-block-header {
  box-sizing: border-box;
  margin-left: auto;
  margin-right: auto;
  max-width: 1100px;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  text-align: left;
  width: 100%;
}

.publications-page-shell {
  margin: 0 auto;
  max-width: 1100px;
  padding: 2rem 1.5rem 7rem;
  text-align: left;
}

.publications-page h2 {
  border-bottom: 1px solid var(--site-border);
  font-size: clamp(1.45rem, 2.5vw, 1.8rem);
  font-weight: 600;
  margin-top: 4rem;
  padding-bottom: 0.75rem;
}

.publications-page > section:first-child > h2 {
  margin-top: 0;
}

.publications-page ol {
  margin-bottom: 0;
  padding-left: 1.4rem;
}

.publications-page li {
  line-height: 1.37;
  margin-bottom: 0.35rem;
  padding-left: 0.45rem;
}

.publications-page li > p {
  margin-bottom: 0;
}

.publications-page li:last-child {
  margin-bottom: 0;
}

.publications-page a {
  overflow-wrap: anywhere;
}

body.contact-page-body .quarto-title-banner {
  padding: clamp(2.5rem, 6vw, 4rem) 0;
}

body.contact-page-body .quarto-title-banner h1.title {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 600;
}

.contact-page-shell {
  color: var(--site-text-soft);
  font-size: 1.05rem;
  line-height: 1.75;
  margin: 0 auto;
  max-width: 1100px;
  padding: 2rem 1.5rem 7rem;
  text-align: left;
}

.contact-page-shell p {
  margin: 0;
  max-width: 780px;
}

main.content {
  margin: 0 auto;
  max-width: 1180px;
  min-height: 45vh;
  padding-bottom: 5rem;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

@media (max-width: 991.98px) {
  .navbar-nav .nav-link {
    margin-left: 0;
    padding: 0.65rem 0;
  }
}

@media (max-width: 760px) {
  .faculty-profile {
    gap: 2rem;
    grid-template-columns: 1fr;
  }

  .faculty-photo-wrap {
    max-width: 220px;
  }

  .faculty-copy {
    min-height: 7rem;
  }
}

@media (max-width: 575.98px) {
  .navbar-brand {
    font-size: 1rem;
  }

  .home-simple {
    padding-top: 5rem;
  }

  .home-simple h1 {
    font-size: clamp(1.95rem, 9vw, 2.65rem);
    letter-spacing: -0.01em;
  }
}