:root {
  --page-bg: #f5f7fb;
  --card-bg: #ffffff;
  --ink: #1f2933;
  --muted: #667085;
  --line: #d8dee8;
  --accent: #0969a2;
  --accent-strong: #064f7a;
  --code: "Source Code Pro", Consolas, "Liberation Mono", monospace;
  --sans: "Lato", "Fira Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--page-bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
}

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

a:hover {
  color: var(--accent-strong);
  text-decoration: underline;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: #202936;
  box-shadow: 0 8px 24px rgba(16, 24, 40, 0.14);
}

.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 1rem;
}

.brand {
  color: #fff;
  font-weight: 900;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  gap: 0.25rem;
  align-items: center;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 0.75rem;
  color: rgba(255, 255, 255, 0.82);
  font-weight: 700;
  border-radius: 5px;
}

.nav-links a.active,
.nav-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  text-decoration: none;
}

.layout {
  max-width: 1160px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 1rem;
  padding: 1.25rem 1rem 3rem;
}

.profile {
  position: sticky;
  top: 76px;
  align-self: start;
}

.card {
  background: var(--card-bg);
  border: 1px solid rgba(216, 222, 232, 0.72);
  border-radius: 7px;
  box-shadow: 0 8px 24px rgba(31, 41, 51, 0.07);
}

.profile-card {
  padding: 1.25rem;
  text-align: center;
}

.portrait {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
  border-radius: 5px;
  background: #e7ecf3;
}

.profile-card h1 {
  margin: 1rem 0 0.35rem;
  font-size: 1.55rem;
  line-height: 1.15;
  letter-spacing: 0;
}

.role {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.email {
  display: inline-block;
  margin-top: 0.8rem;
  font-family: var(--code);
  font-size: 0.86rem;
}

.socials {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.9rem;
}

.socials a,
.link-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 0.24rem 0.55rem;
  border-radius: 999px;
  background: #e7f2f8;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 800;
}

.socials a:hover,
.link-pill:hover {
  background: #d8ebf5;
  text-decoration: none;
}

.content {
  display: grid;
  gap: 1rem;
}

.section {
  padding: 1.35rem;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.55rem;
}

.section h2,
.page-title {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.25;
  letter-spacing: 0;
}

.page-title {
  font-size: 1.75rem;
}

.kicker {
  margin: 0 0 0.35rem;
  color: var(--accent);
  font-family: var(--code);
  font-size: 0.82rem;
  font-weight: 800;
}

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

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

.compact-list li {
  display: flex;
  gap: 0.65rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid #eef2f6;
}

.compact-list li:last-child {
  border-bottom: 0;
}

.badge-dot {
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin-top: 0.2rem;
  border-radius: 4px;
  background: #202936;
}

.item-title {
  font-weight: 800;
}

.item-meta {
  color: var(--muted);
  font-size: 0.9rem;
}

.topic-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.topic-list li {
  padding: 0.4rem 0.62rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #f8fafc;
  font-weight: 800;
  font-size: 0.9rem;
}

.news-list li {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr);
  gap: 0.8rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid #eef2f6;
}

.news-list li:last-child {
  border-bottom: 0;
}

.news-date {
  color: var(--muted);
  font-family: var(--code);
  font-size: 0.82rem;
}

.publication {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid #eef2f6;
}

.publication:last-child {
  border-bottom: 0;
}

.pub-cover {
  min-height: 84px;
  border-radius: 5px;
  background:
    linear-gradient(135deg, rgba(9, 105, 162, 0.18), rgba(32, 41, 54, 0.08)),
    #eef2f6;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-family: var(--code);
  font-size: 0.8rem;
  font-weight: 800;
  text-align: center;
  padding: 0.5rem;
}

.publication h3 {
  margin: 0 0 0.25rem;
  font-size: 1.06rem;
  line-height: 1.35;
}

.publication p {
  margin: 0.15rem 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.pub-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.45rem;
}

.archive-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.35rem;
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0.18rem 0.5rem;
  border-radius: 999px;
  background: #f1f5f9;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
}

.archive-summary {
  color: var(--muted);
  font-size: 0.94rem;
}

.footer {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 1rem 2rem;
  color: var(--muted);
  font-size: 0.86rem;
}

@media (max-width: 820px) {
  .nav-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 0.75rem 1rem;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.15rem;
  }

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

  .profile {
    position: static;
  }

  .portrait {
    max-width: 220px;
    margin: 0 auto;
    border-radius: 50%;
  }

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

  .news-list li {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }
}