:root {
  color-scheme: light;
  font-family: "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  color: #172638;
  background: #f3f5f5;
}

* { box-sizing: border-box; }
body { margin: 0; line-height: 1.8; }
a { color: #075a76; }
a:hover { text-decoration-thickness: 2px; }
.wrap { width: min(100% - 40px, 900px); margin-inline: auto; }
header { background: #152b37; color: #fff; border-bottom: 5px solid #e1a44b; }
header .wrap { min-height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { color: #fff; text-decoration: none; font-size: 1.35rem; font-weight: 800; letter-spacing: .12em; }
nav { display: flex; gap: 24px; flex-wrap: wrap; }
nav a { color: #fff; text-underline-offset: 4px; }
main { padding-block: 56px 80px; }
.eyebrow { font-size: .9rem; color: #4f6d78; letter-spacing: .09em; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.25; margin: 8px 0 24px; }
h2 { font-size: 1.35rem; margin: 48px 0 14px; border-left: 4px solid #d68f34; padding-left: 14px; }
p, li { font-size: 1rem; }
.lead { font-size: 1.15rem; max-width: 46rem; }
.panel { background: #fff; border: 1px solid #d9e0e2; border-radius: 12px; padding: 24px 28px; margin-top: 32px; }
.list { padding-left: 1.4em; }
.meta { color: #516671; font-size: .9rem; }
footer { border-top: 1px solid #d9e0e2; padding: 25px 0; color: #516671; font-size: .9rem; }
@media (max-width: 600px) {
  header .wrap { align-items: flex-start; flex-direction: column; justify-content: center; padding-block: 16px; gap: 6px; }
  main { padding-block: 40px 60px; }
  .panel { padding: 20px; }
}