:root {
  --max: 1100px;
  --ink: #18212b;
  --muted: #5e6a75;
  --line: #d9e0e6;
  --panel: #f5f8fa;
  --accent: #1f5f8b;
  --bg: #ffffff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
.wrap { width: min(92%, var(--max)); margin: 0 auto; }
.site-header {
  padding: 4rem 0 3rem;
  background: linear-gradient(135deg, #eef5f9, #ffffff);
  border-bottom: 1px solid var(--line);
}
.eyebrow { margin: 0 0 .5rem; color: var(--accent); font-weight: 700; }
h1 { margin: 0; font-size: clamp(2.2rem, 5vw, 4.5rem); line-height: 1.05; }
.subtitle { color: var(--muted); font-size: 1.15rem; }
main { padding: 2.5rem 0 4rem; }
section { margin: 0 0 2.5rem; }
.notice {
  padding: 1.25rem 1.5rem;
  background: var(--panel);
  border-left: 4px solid var(--accent);
}
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
article {
  border: 1px solid var(--line);
  padding: 1.2rem;
  border-radius: 10px;
  background: #fff;
}
blockquote {
  margin: 1rem 0;
  padding: 1rem 1.25rem;
  border-left: 4px solid var(--accent);
  background: var(--panel);
  font-weight: 700;
}
.meta { display: grid; gap: .6rem; }
.meta div { display: grid; grid-template-columns: 180px 1fr; gap: 1rem; }
dt { font-weight: 700; }
dd { margin: 0; }
a { color: var(--accent); }
.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .95rem;
}
@media (max-width: 760px) {
  .grid { grid-template-columns: 1fr; }
  .meta div { grid-template-columns: 1fr; gap: 0; }
}