:root {
  --blue: #24568f;
  --blue-dark: #173b67;
  --blue-soft: #eef5fc;
  --ink: #1a2430;
  --muted: #5c6875;
  --line: #dfe6ed;
  --paper: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  text-rendering: optimizeLegibility;
}

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

a:hover {
  color: var(--blue-dark);
}

a:focus-visible {
  outline: 3px solid #8eb7e1;
  outline-offset: 4px;
  border-radius: 2px;
}

::selection {
  background: #cfe2f6;
  color: var(--ink);
}

.page-width {
  width: min(1040px, calc(100% - 48px));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: -70px;
  left: 18px;
  padding: 10px 14px;
  background: var(--ink);
  color: #ffffff;
  transition: top 150ms ease;
}

.skip-link:focus {
  top: 18px;
}

.topbar {
  position: sticky;
  z-index: 20;
  top: 0;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.topbar-inner {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.site-name {
  color: var(--ink);
  font-size: 1rem;
  font-weight: 750;
  letter-spacing: -0.015em;
}

.topbar nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 0.9rem;
}

.topbar nav a {
  color: var(--muted);
}

.topbar nav a:hover {
  color: var(--blue);
}

.intro {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 48px;
  align-items: start;
  padding: 78px 0 64px;
}

.portrait-wrap {
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid #d7dfe8;
  border-radius: 10px;
  background: var(--blue-soft);
  box-shadow: 0 10px 30px rgba(27, 64, 105, 0.08);
}

.portrait-wrap img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.intro h1 {
  margin: -8px 0 6px;
  color: #152235;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.15rem, 4.3vw, 3.25rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.intro h1 span {
  margin-left: 10px;
  color: #4f6074;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.47em;
  font-weight: 600;
  letter-spacing: 0;
  vertical-align: middle;
}

.position {
  margin: 0 0 23px;
  color: var(--blue);
  font-size: 0.97rem;
  font-weight: 650;
}

.bio {
  margin: 0;
  color: #344252;
  font-size: 1.02rem;
  line-height: 1.78;
}

.bio a {
  text-decoration: underline;
  text-decoration-color: #a8bfd8;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.bio strong,
.bio strong a {
  color: #182a41;
  font-weight: 760;
}

.profile-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 21px;
  margin-top: 24px;
  font-size: 0.94rem;
  font-weight: 650;
}

.profile-links a::after {
  content: " ↗";
  font-size: 0.78em;
}

.profile-links a:first-child::after {
  content: "";
}

.section {
  padding: 44px 0 60px;
  border-top: 1px solid var(--line);
}

.section h2 {
  margin: 0 0 25px;
  color: #17263a;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.75rem;
  letter-spacing: -0.02em;
}

.news-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.news-list li {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 18px;
  padding: 9px 0;
  color: #394858;
  line-height: 1.55;
}

.news-list time {
  color: var(--blue);
  font-weight: 700;
}

.section-title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
}

.section-title-row h2 {
  margin-bottom: 6px;
}

.section-title-row > a {
  font-size: 0.9rem;
}

.contribution-note {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.82rem;
}

.publication-list {
  display: grid;
}

.publication {
  display: grid;
  grid-template-columns: minmax(285px, 37%) minmax(0, 1fr);
  gap: 34px;
  align-items: center;
  padding: 34px 0;
  border-top: 1px solid var(--line);
}

.publication-image {
  aspect-ratio: 16 / 10;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 1px solid #dbe3ec;
  border-radius: 6px;
  background: #f8fafc;
}

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

.publication-tetci .publication-image {
  aspect-ratio: 2.35 / 1;
}

.paper-label {
  width: fit-content;
  display: inline-block;
  margin-bottom: 9px;
  padding: 4px 8px;
  border-radius: 3px;
  background: var(--blue-soft);
  color: var(--blue-dark);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.publication h3 {
  margin: 0 0 10px;
  color: #192a40;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.18rem, 2.3vw, 1.45rem);
  line-height: 1.32;
  letter-spacing: -0.015em;
}

.authors,
.venue,
.paper-note {
  margin: 0;
}

.authors {
  color: #4b5968;
  font-size: 0.91rem;
  line-height: 1.55;
}

.authors strong {
  color: #182a41;
  font-weight: 800;
}

.venue {
  margin-top: 7px;
  color: var(--blue);
  font-size: 0.91rem;
  font-weight: 700;
  line-height: 1.5;
}

.paper-links {
  display: flex;
  gap: 11px;
  margin: 10px 0 9px;
  font-size: 0.89rem;
  font-weight: 700;
}

.paper-note {
  color: #526171;
  font-size: 0.91rem;
  line-height: 1.58;
}

.other-publications {
  padding-bottom: 70px;
}

.compact-publication-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: other-paper;
}

.compact-publication-list li {
  position: relative;
  counter-increment: other-paper;
  padding: 20px 0 20px 46px;
  border-top: 1px solid var(--line);
}

.compact-publication-list li::before {
  position: absolute;
  top: 22px;
  left: 0;
  content: counter(other-paper, decimal-leading-zero);
  color: #8090a1;
  font-family: monospace;
  font-size: 0.76rem;
}

.compact-paper-title {
  color: #192a40;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.42;
}

.compact-paper-title:hover {
  color: var(--blue);
}

.compact-authors,
.compact-venue {
  margin: 5px 0 0;
  font-size: 0.88rem;
  line-height: 1.55;
}

.compact-authors {
  color: #4b5968;
}

.compact-authors strong {
  color: #182a41;
  font-weight: 800;
}

.compact-venue {
  color: var(--blue);
  font-weight: 650;
}

.achievement-badge {
  display: inline-block;
  margin-left: 9px;
  padding: 2px 7px;
  border-radius: 3px;
  background: var(--blue-soft);
  color: var(--blue-dark);
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

footer {
  border-top: 1px solid var(--line);
  background: #fbfcfd;
}

.footer-inner {
  min-height: 104px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: #667382;
  font-size: 0.86rem;
}

@media (max-width: 780px) {
  .intro {
    grid-template-columns: 165px minmax(0, 1fr);
    gap: 30px;
  }

  .publication {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .publication-image {
    width: min(100%, 600px);
  }
}

@media (max-width: 600px) {
  .page-width {
    width: min(100% - 32px, 520px);
  }

  .topbar-inner {
    min-height: 58px;
  }

  .topbar nav {
    gap: 17px;
    font-size: 0.82rem;
  }

  .topbar nav a:first-child {
    display: none;
  }

  .intro {
    grid-template-columns: 1fr;
    gap: 27px;
    padding: 52px 0 48px;
  }

  .portrait-wrap {
    width: 154px;
  }

  .intro h1 {
    margin-top: 0;
  }

  .bio {
    font-size: 0.98rem;
    line-height: 1.74;
  }

  .section {
    padding: 38px 0 50px;
  }

  .news-list li {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 11px;
  }

  .section-title-row {
    display: block;
  }

  .section-title-row > a {
    display: inline-block;
    margin: 0 0 14px;
  }

  .publication {
    padding: 28px 0 34px;
  }

  .publication h3 {
    font-size: 1.25rem;
  }

  .footer-inner {
    min-height: 88px;
  }
}

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