:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --line: #e2e8f0;
  --accent: #0f4c81;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

.container {
  width: min(1060px, 92%);
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
}

.brand {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.nav a {
  margin-left: 1rem;
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
}

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

.layout {
  padding: 1.2rem 0 2.5rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.04);
}

.hero {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 1.4rem;
  padding: 1.2rem;
  margin-bottom: 1rem;
}

.portrait {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--line);
}

h1,
h2 {
  margin-top: 0;
  line-height: 1.25;
}

.subtitle {
  margin: 0.2rem 0;
  color: var(--muted);
}

.chips {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.8rem;
}

.chips span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.28rem 0.65rem;
  font-size: 0.85rem;
  background: #f1f5f9;
}

.section {
  padding: 1.1rem 1.2rem;
  margin-bottom: 1rem;
}

.research-banner-wrap {
  margin-bottom: 1rem;
}

.research-banner {
  width: 100%;
  max-width: 100%;
  display: block;
  aspect-ratio: 3 / 1;
  height: auto;
  object-fit: cover;
  object-position: top center;
}

.grid-two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

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

.clean-list li {
  margin: 0.45rem 0;
}

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

.footer {
  border-top: 1px solid var(--line);
  padding: 1rem 0 2rem;
  color: var(--muted);
}

@media (max-width: 760px) {
  .hero,
  .grid-two {
    grid-template-columns: 1fr;
  }

  .nav {
    display: none;
  }
}