:root {
  --ink: #1b1f2a;
  --sub: #545b6b;
  --line: #e3e5ea;
  --bg: #ffffff;
  --soft: #f6f6f3;
  --navy: #0e1733;
  --gold: #c9a24a;
  --link: #1f4fa8;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;
  line-height: 1.85;
  font-size: 16px;
}
a { color: var(--link); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }

header.site { background: var(--navy); color: #fff; }
header.site .wrap { display: flex; align-items: center; gap: 12px; height: 64px; }
header.site a.brand { display: flex; align-items: center; gap: 12px; color: #fff; text-decoration: none; }
header.site img { width: 36px; height: 36px; border-radius: 8px; display: block; }
header.site .name { font-family: "Zen Old Mincho", "Hiragino Mincho ProN", serif; font-size: 20px; letter-spacing: 0.08em; }

.hero { background: var(--navy); color: #fff; padding: 48px 0 56px; }
.hero .wrap { display: grid; grid-template-columns: 120px 1fr; gap: 28px; align-items: center; }
.hero img { width: 120px; height: 120px; border-radius: 20px; display: block; }
.hero h1 { font-family: "Zen Old Mincho", "Hiragino Mincho ProN", serif; font-weight: 600; font-size: 30px; line-height: 1.5; margin: 0 0 8px; }
.hero p { margin: 0; color: #d9dcea; }
.hero .kicker { color: var(--gold); letter-spacing: 0.2em; font-size: 13px; margin-bottom: 6px; }
@media (max-width: 560px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero h1 { font-size: 24px; }
}

main section { padding: 40px 0; border-bottom: 1px solid var(--line); }
main section:last-child { border-bottom: 0; }
h2 { font-family: "Zen Old Mincho", "Hiragino Mincho ProN", serif; font-weight: 600; font-size: 22px; margin: 0 0 16px; }
h3 { font-size: 17px; margin: 28px 0 8px; }
ul.features { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
ul.features li { background: var(--soft); border-radius: 10px; padding: 14px 16px; }
ul.features b { display: block; margin-bottom: 2px; }
ul.features span { color: var(--sub); font-size: 14px; line-height: 1.7; }
@media (max-width: 560px) { ul.features { grid-template-columns: 1fr; } }
.note { color: var(--sub); font-size: 14px; }
dl.info { display: grid; grid-template-columns: 8em 1fr; gap: 6px 16px; margin: 0; }
dl.info dt { color: var(--sub); }
dl.info dd { margin: 0; }

article.doc h1 { font-family: "Zen Old Mincho", "Hiragino Mincho ProN", serif; font-weight: 600; font-size: 26px; margin: 40px 0 4px; }
article.doc .dates { color: var(--sub); font-size: 14px; margin-bottom: 24px; }
article.doc h2 { font-size: 19px; margin: 36px 0 10px; padding-top: 4px; }
article.doc table { border-collapse: collapse; width: 100%; font-size: 15px; margin: 8px 0 12px; }
article.doc th, article.doc td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
article.doc th { background: var(--soft); font-weight: 600; white-space: nowrap; }
article.doc { padding-bottom: 48px; }

footer.site { background: var(--soft); color: var(--sub); font-size: 14px; padding: 24px 0 32px; }
footer.site nav { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-bottom: 8px; }
footer.site a { color: var(--sub); }