:root {
  --accent: #21656a;
  --gold: #d7bd8a;
  --ink: #444;
  --line: #ddd;
  --shadow: 0 4px 14px #0000000d;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  color: var(--ink);
  font:
    15px/1.6 Arial,
    Helvetica,
    sans-serif;
  background: linear-gradient(110deg, #edf5f2, #f5f6f6);
}
a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
header {
  background: #fff;
  border-bottom: 1px solid #eee;
  padding: 12px 0 15px;
}
.header-inner {
  max-width: 1150px;
  margin: auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.brand > a,
.brand div > a {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.3px;
}
.brand p {
  margin: 0;
  color: #777;
  font-size: 14px;
}
.badge {
  height: 36px;
  width: 36px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 20%, #8bb8b4, var(--accent) 65%);
  box-shadow: 0 4px 14px #0002;
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
}
nav {
  display: flex;
  gap: 8px;
  border: 1px solid #e2e2e2;
  border-bottom-color: var(--gold);
  border-radius: 40px;
  box-shadow: var(--shadow);
  padding: 8px;
  background: #fff;
}
nav a {
  padding: 9px 18px;
  color: #333;
  font-weight: 600;
  border-radius: 30px;
}
nav a[aria-current] {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 10px #0002;
}
main {
  max-width: 1088px;
  margin: 30px auto 48px;
}
h1,
h2 {
  font-size: 22px;
  line-height: 1.4;
  color: var(--accent);
  margin: 0 0 14px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 10px;
}
h3 {
  font-size: 17px;
  color: var(--accent);
  line-height: 1.4;
  margin: 0 0 6px;
}
p {
  margin: 0 0 12px;
}
.panel {
  background: #fff;
  border-radius: 22px;
  padding: 26px;
  margin-bottom: 26px;
  box-shadow: var(--shadow);
}
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 28px;
}
.about-grid p {
  margin: 6px 0 12px;
}
figure {
  margin: 4px 0 0;
}
figure img {
  width: 100%;
  aspect-ratio: 1.13;
  object-fit: contain;
  border-radius: 12px;
  background: #f5f7f6;
  box-shadow: 0 4px 10px #0002;
}
figcaption {
  font-style: italic;
}
.area-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.area {
  padding: 18px;
  border: 1px solid #eee;
  border-radius: 12px;
  background: #fafcfc;
}
.people main {
  max-width: 1048px;
  margin-top: 40px;
}
.people-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.person {
  background: #fff;
  border: 1px solid #eee;
  box-shadow: var(--shadow);
  border-radius: 16px;
  padding: 20px;
  display: grid;
  grid-template-columns: 106px 1fr;
  gap: 16px;
}
.person img {
  width: 106px;
  height: 106px;
  object-fit: cover;
  border-radius: 50%;
  box-shadow: 0 3px 12px #0002;
}
.person h3 {
  font-size: 18px;
}
.role {
  font-size: 14px;
  font-weight: 600;
  color: #666;
}
.profiles {
  font-size: 14px;
}
.publications {
  background: #fff;
}
.publications main {
  max-width: 1125px;
}
.publication {
  display: grid;
  grid-template-columns: 105px minmax(0, 1fr) 296px;
  gap: 22px;
  padding: 22px 0;
  border-bottom: 1px solid #e5e5e5;
  font:
    17px/1.55 Georgia,
    serif;
}
.publication h2 {
  font:
    700 26px/1.25 Georgia,
    serif;
  border: 0;
  padding: 0;
  margin: 0 0 10px;
}
.publication h2 a {
  text-decoration: underline;
}
.publication > img {
  width: 100%;
  height: 170px;
  object-fit: cover;
}
.journal {
  font-style: italic;
}
.metrics {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  font:
    12px/1.4 Arial,
    sans-serif;
}
.metrics a {
  width: 66px;
  height: 66px;
  display: grid;
  place-items: center;
  border: 2px solid #c1d9d7;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 4px 16px #0001;
}
.lead {
  color: #666;
  margin: 0 0 22px;
}
.project-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.project {
  border: 1px solid #eee;
  border-radius: 16px;
  background: #fff;
  padding: 20px;
  box-shadow: var(--shadow);
}
.project img {
  width: 100%;
  height: 208px;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 4px 10px #0001;
  margin-bottom: 10px;
}
.project p {
  font-size: 14px;
  color: #666;
}
footer {
  text-align: center;
  border-top: 1px solid var(--gold);
  padding: 26px 20px;
  background: #fff;
  font-size: 14px;
  color: #666;
}
footer p {
  margin: 8px 0;
}
.skip {
  position: absolute;
  top: -60px;
}
.skip:focus {
  top: 0;
  background: #fff;
  z-index: 20;
}
a:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}
@media (max-width: 1180px) {
  .header-inner {
    margin: 0 4%;
  }
  main,
  .people main,
  .publications main {
    margin-left: 6%;
    margin-right: 6%;
  }
}
@media (max-width: 850px) {
  .publication {
    grid-template-columns: 70px 1fr;
  }
  .publication > img {
    grid-column: 2;
    width: 100%;
  }
  .project-grid,
  .area-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .people-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 600px) {
  nav {
    gap: 0;
    flex-wrap: wrap;
  }
  nav a {
    padding: 8px 12px;
    font-size: 14px;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .area-grid,
  .project-grid {
    grid-template-columns: 1fr;
  }
  .person {
    grid-template-columns: 80px 1fr;
  }
  .person img {
    width: 80px;
    height: 80px;
  }
  .panel {
    padding: 22px;
  }
  .publication h2 {
    font-size: 22px;
  }
  .publication {
    gap: 14px;
  }
  .project img {
    height: 220px;
  }
  main {
    margin-top: 24px;
  }
}
figure img.campus {
  object-fit: cover;
}

/* HiDaLab reference dimensions and responsive layout. */
body {
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  font-size: 16px;
}
header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  padding: 10px 0 16px;
}
.header-inner {
  max-width: 1200px;
  padding: 0 20px;
  margin: auto;
}
.brand div > a {
  font-size: 1.2rem;
  letter-spacing: 0.03em;
}
.brand p {
  font-size: 0.85rem;
}
nav {
  flex-wrap: wrap;
}
nav a {
  padding: 8px 18px;
  font-size: 0.95rem;
  font-weight: 500;
}
main {
  max-width: 1100px;
}
.panel {
  padding: 28px 26px 30px;
  margin-bottom: 30px;
  box-shadow: 0 12px 30px #0000000f;
}
h1,
h2 {
  font-size: 1.3rem;
}
.about-grid {
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 26px;
  margin-top: 20px;
  align-items: start;
}
.about-grid p {
  margin: 0 0 10px;
  font-size: 0.95rem;
}
figure {
  margin: 0;
}
figure img {
  aspect-ratio: auto;
  height: auto;
  display: block;
}
figcaption {
  margin-top: 8px;
  font-size: 0.85rem;
}
.area-grid {
  margin-top: 22px;
}
.area {
  padding: 18px 18px 16px;
  border-radius: 16px;
  background: white;
  box-shadow: 0 6px 18px #0000000d;
}
.area h3 {
  font-size: 1rem;
}
.area p {
  font-size: 0.9rem;
  color: #555;
}
.people main {
  max-width: 1100px;
  margin: 42px auto 62px;
  padding: 0 20px;
}
.people-grid {
  margin-top: 18px;
}
.person {
  padding: 18px 18px 16px;
  grid-template-columns: 110px 1fr;
}
.person img {
  width: 110px;
  height: 110px;
}
.publication {
  grid-template-columns: 104px minmax(0, 1fr) 300px;
  gap: 24px;
  font-size: 15.5px;
  padding: 22px 0;
}
.publication h2 {
  font-size: clamp(22px, 2.1vw, 28px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.22;
}
.publication h2 a {
  text-underline-offset: 6px;
}
.journal {
  font-size: 15px;
}
.metrics {
  gap: 14px;
  padding-top: 6px;
  min-width: 104px;
}
.metrics a {
  width: 64px;
  height: 64px;
}
.metrics a:nth-child(2) {
  width: 92px;
  height: 92px;
  border-radius: 0;
  clip-path: polygon(25% 6%, 75% 6%, 100% 50%, 75% 94%, 25% 94%, 0% 50%);
  background: #edf5f2;
  border: 0;
}
.projects main {
  max-width: 1130px;
  padding: 0 20px;
  margin: 26px auto 34px;
}
.project-grid {
  margin-top: 18px;
}
.project img {
  height: 210px;
  margin-bottom: 12px;
}
.project h3 {
  font-size: 1.02rem;
  line-height: 1.25;
  margin-bottom: 8px;
}
.project p {
  font-size: 0.92rem;
}
footer {
  text-align: left;
  margin-top: 24px;
  padding: 18px 0 26px;
  border-top: 1px solid #eee;
}
.footer-inner {
  max-width: 1100px;
  margin: auto;
  padding: 0 20px;
  font-size: 0.85rem;
  color: #555;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}
@media (max-width: 1180px) {
  main,
  .publications main {
    margin-left: 20px;
    margin-right: 20px;
  }
}
@media (max-width: 1100px) {
  .publication {
    grid-template-columns: 104px minmax(0, 1fr) 260px;
  }
  .publication > img {
    height: 150px;
  }
}
@media (max-width: 1024px) {
  .about-grid,
  .people-grid {
    grid-template-columns: 1fr;
  }
  .area-grid,
  .project-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 860px) {
  .publication {
    grid-template-columns: 104px minmax(0, 1fr);
  }
  .publication > img {
    grid-column: 1/-1;
    width: 100%;
    height: auto;
    max-height: 300px;
  }
}
@media (max-width: 640px) {
  .area-grid,
  .project-grid {
    grid-template-columns: 1fr;
  }
  .person {
    grid-template-columns: 1fr;
  }
  .person img {
    width: 110px;
    height: 110px;
    margin: auto;
  }
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .panel {
    padding: 22px;
  }
  nav a {
    padding: 8px 12px;
  }
}
@media (max-width: 620px) {
  .publication {
    grid-template-columns: 1fr;
  }
  .metrics {
    flex-direction: row;
    justify-content: flex-start;
  }
  .publication > img {
    grid-column: 1;
  }
  .publication h2 {
    font-size: 22px;
  }
}

.research-group {
  margin-top: 24px;
}
.research-group + .research-group {
  margin-top: 30px;
}
.group-title {
  font-size: 1.1rem;
  margin: 0 0 14px;
}
.statistical-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.research-group .area-grid {
  margin-top: 14px;
}
@media (max-width: 1024px) {
  .statistical-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 640px) {
  .statistical-grid {
    grid-template-columns: 1fr;
  }
}

/* People portrait size: change this one value to resize every member photo. */
.people-grid {
  --portrait-size: 110px;
}
.people-grid img {
  display: block;
  width: var(--portrait-size);
  height: var(--portrait-size);
  max-width: var(--portrait-size);
  max-height: var(--portrait-size);
  object-fit: cover;
  object-position: center top;
  border-radius: 50%;
}
.person > * {
  min-width: 0;
}