:root {
  --text: #494e52;
  --heading: #30353a;
  --muted: #7a8288;
  --link: #2980b9;
  --link-dark: #1d5f8a;
  --line: #e7e8e9;
  --soft: #f2f3f3;
  --blue-soft: #e7f0f6;
  --layout: 1180px;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --display: Georgia, "Times New Roman", "Songti SC", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 28px;
}

body {
  margin: 0;
  background: #fff;
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  color: var(--link-dark);
  text-decoration: underline;
}

a:focus-visible {
  border-radius: 2px;
  outline: 3px solid rgba(41, 128, 185, 0.42);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 50;
  top: 10px;
  left: 10px;
  padding: 8px 12px;
  background: var(--heading);
  color: #fff;
  transform: translateY(-160%);
}

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

.site-layout {
  display: grid;
  width: min(calc(100% - 32px), var(--layout));
  min-height: calc(100vh - 140px);
  margin: 0 auto;
  padding: 48px 0 64px;
  align-items: start;
  column-gap: clamp(44px, 6vw, 74px);
  grid-template-columns: 270px minmax(0, 800px);
}

.profile-sidebar {
  position: sticky;
  top: 28px;
  align-self: start;
}

.portrait-placeholder {
  position: relative;
  width: 250px;
  max-width: 100%;
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid var(--soft);
  background: #d9e4ec;
}

.profile-photo {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 68%;
  transform: scale(1.65);
  transform-origin: 50% 68%;
}

.profile-copy h1 {
  margin: 14px 0 3px;
  color: var(--heading);
  font-family: var(--display);
  font-size: 25px;
  font-weight: 700;
  line-height: 1.2;
}

.social-links,
.section-nav ul,
.news-list {
  padding: 0;
}

.social-links {
  margin: 13px 0 0;
  list-style: none;
}

.social-links li + li {
  margin-top: 7px;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--text);
  font-size: 14px;
}

.social-links a:hover {
  color: var(--link);
}

.social-mark {
  display: inline-grid;
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
  place-items: center;
  border: 1px solid #c9cdd0;
  border-radius: 50%;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
}

.social-mark-text {
  font-size: 9px;
  letter-spacing: -0.03em;
}

.section-nav {
  margin-top: 28px;
}

.section-nav ul {
  margin: 0;
  list-style: none;
}

.section-nav a {
  display: inline-block;
  padding: 5px 0;
  color: var(--text);
  font-size: 15px;
}

.section-nav a:hover,
.section-nav a[aria-current="true"] {
  color: var(--link);
  font-weight: 600;
  text-decoration: none;
}

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

.about-section p {
  margin: 0 0 18px;
}

.about-section strong {
  color: var(--heading);
}

h2 {
  margin: 40px 0 12px;
  padding: 0 0 9px;
  border-bottom: 1px solid var(--line);
  color: var(--heading);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.25;
}

.news-list {
  margin: 0;
  padding-left: 24px;
}

.news-list li {
  margin: 10px 0;
  padding-left: 2px;
}

.news-date {
  color: var(--heading);
  font-weight: 600;
}

.publication {
  display: grid;
  margin: 20px 0 0;
  align-items: start;
  gap: 26px;
  grid-template-columns: 310px minmax(0, 1fr);
}

.publication-visual {
  position: relative;
  display: block;
  width: 310px;
  height: 155px;
  overflow: hidden;
  padding: 3px;
  appearance: none;
  border: 1px solid var(--line);
  background: #fff;
  color: inherit;
  cursor: zoom-in;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.publication-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.publication-visual:hover {
  border-color: #c9cdd0;
  box-shadow: 0 8px 24px rgba(48, 53, 58, 0.12);
  transform: translateY(-2px);
}

.figure-lightbox {
  position: fixed;
  z-index: 1000;
  inset: 0;
  display: grid;
  padding: 32px;
  place-items: center;
}

.figure-lightbox[hidden] {
  display: none;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  background: rgba(18, 22, 26, 0.84);
  cursor: zoom-out;
}

.lightbox-panel {
  position: relative;
  z-index: 1;
  width: min(1040px, calc(100vw - 64px));
  padding: 10px;
  background: #fff;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
}

.lightbox-panel img {
  display: block;
  width: 100%;
  max-height: calc(100vh - 84px);
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  z-index: 2;
  top: -16px;
  right: -16px;
  display: grid;
  width: 36px;
  height: 36px;
  padding: 0;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  background: var(--heading);
  color: #fff;
  cursor: pointer;
  font-family: Arial, sans-serif;
  font-size: 24px;
  line-height: 1;
}

body.lightbox-open {
  overflow: hidden;
}

.publication-status {
  margin: 0 0 3px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.publication-copy h3 {
  margin: 0 0 7px;
  color: var(--heading);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
}

.publication-copy h3 a {
  color: var(--heading);
}

.publication-copy h3 a:hover {
  color: var(--link);
}

.authors,
.venue,
.equal-contribution,
.publication-links {
  margin: 4px 0;
  font-size: 14px;
}

.equal-contribution {
  color: var(--muted);
  font-size: 12px;
}

.venue {
  color: var(--muted);
  font-style: italic;
}

.publication-links {
  margin-top: 8px;
}

.publication-links a {
  color: var(--link);
}

.publication-links a + a {
  margin-left: 7px;
}

.site-footer {
  margin-top: 24px;
  background: var(--soft);
  color: #8a9298;
}

.footer-inner {
  display: flex;
  width: min(calc(100% - 32px), var(--layout));
  min-height: 112px;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: 13px;
}

.footer-inner p {
  margin: 0;
}

.footer-inner a {
  color: #70777d;
}

@media (max-width: 900px) {
  .site-layout {
    column-gap: 38px;
    grid-template-columns: 220px minmax(0, 1fr);
  }

  .portrait-placeholder {
    width: 210px;
  }

  .publication {
    grid-template-columns: 250px minmax(0, 1fr);
  }

  .publication-visual {
    width: 250px;
    height: 126px;
  }
}

@media (max-width: 700px) {
  html {
    scroll-padding-top: 16px;
  }

  .site-layout {
    width: min(calc(100% - 36px), 620px);
    padding: 28px 0 52px;
    gap: 36px;
    grid-template-columns: 1fr;
  }

  .profile-sidebar {
    position: static;
    display: grid;
    align-items: start;
    column-gap: 22px;
    grid-template-columns: 142px minmax(0, 1fr);
  }

  .portrait-placeholder {
    width: 142px;
  }

  .profile-copy h1 {
    margin-top: 0;
  }

  .social-links {
    margin-top: 15px;
  }

  .social-links li + li {
    margin-top: 5px;
  }

  .section-nav {
    margin-top: 22px;
    padding-top: 12px;
    border-top: 1px solid var(--line);
    grid-column: 1 / -1;
  }

  .section-nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 22px;
  }

  .section-nav a {
    padding: 3px 0;
    font-size: 14px;
  }

  .publication {
    gap: 16px;
    grid-template-columns: 240px minmax(0, 1fr);
  }

  .publication-visual {
    width: 240px;
    height: 120px;
  }

  .footer-inner {
    width: min(calc(100% - 36px), 620px);
  }
}

@media (max-width: 520px) {
  body {
    font-size: 15.5px;
  }

  .profile-sidebar {
    grid-template-columns: 120px minmax(0, 1fr);
  }

  .portrait-placeholder {
    width: 120px;
  }

  .profile-copy h1 {
    font-size: 23px;
  }

  .social-mark {
    width: 20px;
    height: 20px;
    flex-basis: 20px;
  }

  .social-links a {
    gap: 7px;
    font-size: 13px;
  }

  .publication {
    grid-template-columns: 1fr;
  }

  .publication-visual {
    width: 100%;
    max-width: 420px;
    height: auto;
    aspect-ratio: 2 / 1;
  }

  .figure-lightbox {
    padding: 12px;
  }

  .lightbox-panel {
    width: calc(100vw - 24px);
    padding: 5px;
  }

  .lightbox-close {
    top: -10px;
    right: -8px;
  }

  .footer-inner {
    min-height: 128px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}