:root {
  --bg: #f7f8fb;
  --panel: #ffffff;
  --ink: #1f2937;
  --muted: #667085;
  --line: #e5e7eb;
  --accent: #1d4ed8;
  --accent-soft: #e8f0ff;
  --shadow: 0 18px 45px rgba(31, 41, 55, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

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

a:hover {
  text-decoration: underline;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px max(24px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
}

.brand {
  color: var(--ink);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  font-size: 0.94rem;
  font-weight: 600;
}

.site-nav a {
  color: #475467;
}

.page-shell {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 42px;
  width: min(1280px, calc(100% - 48px));
  margin: 42px auto;
  align-items: start;
}

.profile-card {
  position: sticky;
  top: 92px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.avatar {
  display: block;
  width: 100%;
  max-height: 300px;
  margin-bottom: 18px;
  border-radius: 8px;
  border: 4px solid #eef4ff;
  object-fit: contain;
  background: #f8fbff;
  box-shadow: 0 12px 28px rgba(31, 41, 55, 0.16);
}

.profile-card h1,
.section h2 {
  margin: 0;
  font-family: Lora, Georgia, serif;
  line-height: 1.16;
}

.profile-card h1 {
  font-size: 1.8rem;
}

.profile-title {
  margin: 4px 0 12px;
  color: var(--accent);
  font-weight: 700;
}

.profile-summary {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.9rem;
}

.profile-links {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin: 0;
  padding: 0;
  color: var(--muted);
  font-size: 0.92rem;
  list-style: none;
}

.profile-links li,
.profile-links a {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
}

.profile-links a {
  color: var(--ink);
  font-weight: 600;
}

.profile-links a:hover {
  text-decoration: underline;
}

.profile-links i {
  width: 18px;
  flex: 0 0 18px;
  color: var(--accent);
  text-align: center;
}

.content {
  display: grid;
  gap: 24px;
}

.section {
  scroll-margin-top: 92px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.section h2 {
  color: var(--ink);
  font-size: clamp(1.55rem, 2.1vw, 2rem);
  letter-spacing: 0;
}

.section h3 {
  margin: 0 0 4px;
  font-size: 1.05rem;
  line-height: 1.35;
}

.section p {
  margin: 12px 0 0;
}

.section-heading {
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.section-heading h2 {
  margin: 0;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-list span {
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #1e3a8a;
  font-size: 0.9rem;
  font-weight: 700;
}

.note {
  padding: 14px 16px;
  border-left: 4px solid var(--accent);
  background: #f8fbff;
  color: #475467;
}

.publication-list,
.selected-publication-list,
.all-publication-list,
.project-card,
.education-list,
.research-theme-grid,
.research-arc,
.timeline,
.news-list {
  display: grid;
  gap: 16px;
}

.status-list {
  display: grid;
  gap: 10px;
  margin: 0 0 22px;
}

.status-list div {
  padding: 12px 14px;
  border-radius: 8px;
  background: #f8fbff;
}

.status-list span,
.status-list strong {
  display: block;
}

.status-list span {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.status-list strong {
  margin-top: 3px;
  line-height: 1.35;
}

.project-card {
  grid-template-columns: minmax(0, 0.72fr) minmax(420px, 1.28fr);
  gap: 24px;
  align-items: start;
}

.research-theme-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.research-theme-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
}

.research-theme-card.primary {
  background: #f8fbff;
}

.research-theme-card p {
  color: #475467;
}

.research-theme-card ul {
  margin: 14px 0 0;
  padding-left: 18px;
  color: var(--ink);
}

.related-work {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.related-work span {
  display: block;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.related-work div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.related-work a {
  padding: 5px 9px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #1e3a8a;
  font-size: 0.84rem;
  font-weight: 700;
}

.research-arc {
  position: relative;
  gap: 0;
  margin-top: 28px;
  padding-left: 28px;
}

.research-arc::before {
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: 7px;
  width: 2px;
  content: "";
  background: #bfdbfe;
}

.research-arc article {
  position: relative;
  padding: 0 0 24px;
}

.research-arc article:last-child {
  padding-bottom: 0;
}

.research-arc article::before {
  position: absolute;
  top: 6px;
  left: -27px;
  width: 12px;
  height: 12px;
  border: 3px solid #ffffff;
  border-radius: 50%;
  content: "";
  background: var(--accent);
  box-shadow: 0 0 0 1px #bfdbfe;
}

.research-arc h3 {
  margin-top: 4px;
}

.project-copy {
  min-width: 0;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-bottom: 12px;
}

.project-meta span,
.project-meta time {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-affiliation {
  margin-top: 0;
  color: var(--muted);
  font-weight: 700;
}

.project-video {
  display: block;
  width: 100%;
  max-height: 480px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #000000;
  object-fit: contain;
}

.education-item {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 20px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.education-meta span,
.education-meta time {
  display: block;
}

.education-meta span {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.education-meta time {
  margin-top: 4px;
}

.publication {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 18px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.publication-body {
  display: grid;
  grid-template-columns: 172px minmax(0, 1fr);
  grid-template-areas:
    "visual title"
    "visual authors"
    "visual venue"
    "visual snapshot";
  gap: 0 18px;
  align-items: start;
}

.publication-body h3 {
  grid-area: title;
}

.publication-body .pub-authors {
  grid-area: authors;
}

.publication-body .pub-venue {
  grid-area: venue;
}

.publication-body .pub-snapshot {
  grid-area: snapshot;
}

.pub-year {
  color: var(--accent);
  font-weight: 800;
}

.selected-publication,
.all-publication {
  display: grid;
  border-top: 1px solid var(--line);
}

.selected-publication {
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 24px;
  padding: 28px 0;
}

.all-publication {
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 18px;
  padding: 14px 0;
}

.all-publication h3 {
  font-size: 1rem;
}

.paper-thumb {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  object-fit: contain;
}

.subsection-heading {
  margin-top: 34px;
  margin-bottom: 18px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.subsection-heading h2 {
  font-size: 1.55rem;
}

.pub-authors,
.pub-venue {
  color: var(--muted);
}

.author-me {
  color: var(--ink);
  font-weight: 800;
}

.pub-snapshot {
  padding: 12px 14px;
  border-radius: 8px;
  background: #f8fbff;
  color: #344054;
  font-size: 0.94rem;
}

.pub-badge {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.pub-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.pub-actions a {
  padding: 5px 10px;
  border-radius: 999px;
  background: #f2f4f7;
  color: #344054;
  font-size: 0.85rem;
  font-weight: 700;
}

.timeline-item,
.news-list article {
  display: grid;
  grid-template-columns: 98px minmax(0, 1fr);
  gap: 18px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.snapshot-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.snapshot-grid article {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
}

.snapshot-grid span,
.snapshot-grid strong {
  display: block;
}

.snapshot-grid span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.snapshot-grid strong {
  margin-top: 6px;
  line-height: 1.35;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.service-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
}

.service-card span {
  display: block;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.service-card p {
  margin-top: 8px;
}

time {
  color: var(--accent);
  font-weight: 800;
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.stacked-section > div + div {
  margin-top: 34px;
}

.compact-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.compact-list li {
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.education-list > :first-child,
.selected-publication-list > :first-child,
.all-publication-list > :first-child,
.compact-list > :first-child,
.news-list > :first-child {
  border-top: 0;
  padding-top: 0;
}

.compact-list span {
  display: inline-block;
  min-width: 82px;
  color: var(--accent);
  font-weight: 800;
}

.site-footer {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto 34px;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 1100px) {
  .project-card {
    grid-template-columns: minmax(0, 0.82fr) minmax(360px, 1.18fr);
  }

  .selected-publication {
    grid-template-columns: 300px minmax(0, 1fr);
  }
}

@media (max-width: 860px) {
  html {
    scroll-padding-top: 130px;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .page-shell {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-top: 24px;
  }

  .profile-card {
    position: static;
  }

  .section {
    scroll-margin-top: 130px;
  }

  .two-column,
  .snapshot-grid,
  .service-grid,
  .research-theme-grid,
  .education-item,
  .project-card,
  .selected-publication,
  .all-publication,
  .publication,
  .publication-body,
  .timeline-item,
  .news-list article {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .publication-body {
    grid-template-areas:
      "visual"
      "title"
      "authors"
      "venue"
      "snapshot";
  }

}

@media (max-width: 560px) {
  .site-header,
  .page-shell,
  .site-footer {
    width: auto;
  }

  .site-header {
    padding: 16px;
  }

  .page-shell {
    width: calc(100% - 28px);
  }

  .section,
  .profile-card {
    padding: 22px;
  }
}