:root {
  --brand: #7a4a2b;
  --brand-dark: #5a3520;
  --ink: #2b2b2b;
  --muted: #6b6b6b;
  --paper: #fffaf4;
  --line: #e5d9c9;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.85;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 1.2rem;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}
.site-header .logo { font-size: 1.15rem; font-weight: 700; color: var(--brand); text-decoration: none; }
.site-header nav a { margin-left: 0.9rem; color: var(--ink); text-decoration: none; font-size: 0.95rem; }

main { max-width: 760px; margin: 0 auto; padding: 1.6rem 1.2rem 3rem; }
main h1 { font-size: 1.7rem; line-height: 1.4; color: var(--brand-dark); }
main h2 { font-size: 1.35rem; margin-top: 2.2rem; padding-bottom: 0.3rem; border-bottom: 2px solid var(--brand); }
main h3 { font-size: 1.1rem; margin-top: 1.6rem; }
article.article-body p { margin: 0.9rem 0; }
article.article-body ul, article.article-body ol { margin: 0.9rem 0; padding-left: 1.4rem; }
article.article-body li { margin: 0.35rem 0; }

.meta { color: var(--muted); font-size: 0.85rem; margin-bottom: 1rem; }

.faq { margin-top: 2rem; }
.faq details { border: 1px solid var(--line); border-radius: 6px; padding: 0.6rem 0.8rem; margin: 0.4rem 0; background: #fff; }
.faq summary { font-weight: 600; cursor: pointer; }

.article-list { list-style: none; padding: 0; }
.article-list li { margin: 0.8rem 0; }
.article-list a { color: var(--brand-dark); font-weight: 600; text-decoration: none; }
.article-list a:hover { text-decoration: underline; }

.breadcrumb { font-size: 0.85rem; color: var(--muted); margin-bottom: 1rem; }
.breadcrumb a { color: var(--muted); text-decoration: none; }

.info-table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
.info-table th, .info-table td { border: 1px solid var(--line); padding: 0.55rem 0.7rem; font-size: 0.92rem; text-align: left; vertical-align: top; }
.info-table th { background: var(--paper); white-space: nowrap; }
.note { font-size: 0.85rem; color: var(--muted); }
.cta { margin-top: 2rem; padding: 1rem; background: var(--paper); border: 1px solid var(--line); border-radius: 8px; color: var(--brand-dark); }

.site-footer { background: var(--paper); border-top: 1px solid var(--line); padding: 2rem 1.2rem; }
.footer-grid { max-width: 760px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.footer-grid h3 { font-size: 0.95rem; color: var(--brand); margin: 0 0 0.5rem; }
.footer-grid p { margin: 0.25rem 0; font-size: 0.9rem; }
.footer-notice { max-width: 760px; margin: 1.5rem auto 0; font-size: 0.82rem; color: var(--muted); }
.footer-copy { text-align: center; color: var(--muted); font-size: 0.82rem; margin-top: 1rem; }

@media (max-width: 600px) {
  .site-header nav a { margin-left: 0.5rem; font-size: 0.85rem; }
  .footer-grid { grid-template-columns: 1fr; }
}