:root {
  --bg: #ffffff;
  --ink: #33383d;
  --muted: #5c6268;
  --soft: #7f8790;
  --line: #eceff1;
  --link: #434a51;
  --accent: #6a4c77;
  --accent-soft: #f7f3f8;
  --max: 1120px;
  --sidebar: 248px;
  --font: "Source Sans 3", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font);
  font-size: 16.5px;
  line-height: 1.62;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a:hover {
  color: var(--accent);
}

.topbar {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
}

.topbar-inner {
  display: grid;
  grid-template-columns: var(--sidebar) minmax(0, 1fr);
  align-items: center;
  width: min(calc(100% - 80px), var(--max));
  min-height: 76px;
  margin: 0 auto;
}

.site-title {
  color: #68707a;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.nav {
  display: flex;
  gap: 34px;
  padding-left: 56px;
}

.nav a {
  color: #6e7680;
  font-size: 21px;
  font-weight: 400;
  transition: color 160ms ease;
}

.page {
  display: grid;
  grid-template-columns: var(--sidebar) minmax(0, 1fr);
  column-gap: 72px;
  width: min(calc(100% - 80px), var(--max));
  margin: 0 auto;
  padding: 56px 0 52px;
}

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

.avatar {
  display: block;
  width: 220px;
  height: auto;
  margin: 0 0 22px;
  aspect-ratio: 1;
  object-fit: contain;
  object-position: center;
  border: 1px solid #e8ecef;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 12px 32px rgba(40, 45, 50, 0.08);
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 4px;
  color: var(--ink);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.cn-name {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 17px;
}

.position {
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 16.5px;
}

.profile-links {
  display: grid;
  gap: 13px;
  margin: 0;
  padding: 0;
  font-size: 16px;
  list-style: none;
}

.profile-links a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--link);
  transition: color 160ms ease, transform 160ms ease;
}

.profile-links a:hover {
  transform: translateX(2px);
}

.profile-links span {
  color: var(--accent);
  font-size: 8px;
}

.content {
  min-width: 0;
}

.section {
  max-width: 760px;
  margin-bottom: 42px;
}

.section:last-child {
  margin-bottom: 0;
}

h2 {
  margin-bottom: 16px;
  color: var(--ink);
  font-size: 32px;
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.about p {
  max-width: 760px;
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 17.5px;
  line-height: 1.68;
}

em {
  font-style: italic;
}

.news-list {
  max-width: 760px;
  margin: 0;
  padding: 0;
  color: var(--muted);
  list-style: none;
}

.news-list li {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 18px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  border-radius: 7px;
  font-size: 16.5px;
  transition: background 160ms ease;
}

.news-list li:first-child {
  border-top: 1px solid var(--line);
}

.news-list li:hover {
  background: var(--accent-soft);
}

.date {
  color: var(--accent);
  font-weight: 700;
}

.publication-list {
  max-width: 790px;
  margin: 0;
  padding-left: 25px;
  color: var(--muted);
}

.publication-list li {
  margin-bottom: 20px;
  padding-left: 5px;
  font-size: 16.5px;
}

.publication-list li::marker {
  color: var(--soft);
  font-weight: 700;
}

.paper-title {
  margin-bottom: 3px;
  color: var(--ink);
  font-size: 17.5px;
  font-weight: 700;
  line-height: 1.42;
}

.publication-list p:not(.paper-title) {
  margin-bottom: 0;
  line-height: 1.52;
}

.footer {
  width: min(calc(100% - 80px), var(--max));
  margin: 0 auto;
  padding: 0 0 32px;
  color: #9aa0a6;
  font-size: 14px;
}

@media (max-width: 900px) {
  .topbar-inner,
  .page,
  .footer {
    width: min(calc(100% - 40px), var(--max));
  }

  .topbar-inner,
  .page {
    grid-template-columns: 1fr;
  }

  .topbar-inner {
    gap: 8px;
    min-height: auto;
    padding: 18px 0;
  }

  .nav {
    gap: 22px;
    padding-left: 0;
  }

  .nav a,
  .site-title {
    font-size: 20px;
  }

  .page {
    row-gap: 36px;
    padding-top: 34px;
  }

  .sidebar {
    position: static;
  }

  .avatar {
    width: 210px;
  }

  h2 {
    font-size: 29px;
  }

  .about p {
    font-size: 16.5px;
  }
}

@media (max-width: 560px) {
  .topbar-inner,
  .page,
  .footer {
    width: min(calc(100% - 28px), var(--max));
  }

  .nav {
    flex-wrap: wrap;
  }

  .avatar {
    width: 190px;
  }

  .news-list li {
    grid-template-columns: 1fr;
    gap: 0;
  }
}