:root {
  --seo-ink: #24221b;
  --seo-muted: #7d786d;
  --seo-line: #ded8c9;
  --seo-paper: #f8f6f0;
  --seo-card: #fffefa;
  --seo-yellow: #ffc400;
  --seo-yellow-soft: #fff5c2;
  --seo-red-soft: #fff0ee;
}

.seo-guide-page {
  color: var(--seo-ink);
  background: var(--seo-paper);
  font-family: "MiSans", "Noto Sans SC", "PingFang SC", "Hiragino Sans", "Noto Sans JP", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.75;
}

.seo-guide-page { min-height: 100vh; }
.seo-guide-header { border-bottom: 1px solid var(--seo-line); background: rgba(255,254,250,.96); }
.seo-guide-header-inner { display: flex; width: min(1080px, calc(100% - 40px)); min-height: 76px; align-items: center; justify-content: space-between; margin: 0 auto; gap: 18px; }
.seo-guide-logo { display: inline-flex; align-items: center; text-decoration: none; }
.seo-guide-logo img { display: block; width: auto; height: 38px; }
.seo-guide-home-link { white-space: nowrap; }
.seo-guide-main { width: min(920px, calc(100% - 40px)); margin: 0 auto; padding: 64px 0 80px; }
.seo-guide-hero { padding: 42px; border: 1px solid var(--seo-line); border-radius: 28px; background: var(--seo-card); box-shadow: 0 14px 44px rgba(62,52,27,.06); }
.seo-guide-hero h1 { max-width: 780px; margin: 0 0 16px; font-size: clamp(30px, 5vw, 52px); line-height: 1.16; letter-spacing: -.045em; }
.seo-guide-lead { max-width: 760px; margin: 0 0 24px; color: #625d52; font-size: 17px; }
.seo-primary-cta { display: inline-flex; min-height: 46px; align-items: center; padding: 0 20px; border-radius: 999px; color: #211f19 !important; background: var(--seo-yellow); text-decoration: none; }
.seo-anchor-nav { display: flex; flex-wrap: wrap; gap: 9px; margin: 24px 0 0; padding: 0; list-style: none; }
.seo-anchor-nav a { display: inline-block; padding: 6px 11px; border: 1px solid var(--seo-line); border-radius: 999px; background: #f5f1e7; font-size: 13px; text-decoration: none; }
.seo-guide-section { padding: 58px 4px 0; scroll-margin-top: 24px; }
.seo-guide-section h2 { margin: 0 0 14px; font-size: clamp(23px, 3vw, 32px); line-height: 1.3; letter-spacing: -.025em; }
.seo-guide-section > p { margin: 0 0 15px; color: #625d52; }
.seo-card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 22px; }
.seo-info-card { padding: 22px; border: 1px solid var(--seo-line); border-radius: 18px; background: var(--seo-card); }
.seo-info-card h3 { margin: 0 0 8px; font-size: 18px; }
.seo-info-card p { margin: 0; color: #6d675d; font-size: 14px; }
.seo-holiday-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 22px; }
.seo-holiday-panel { padding: 24px; border-radius: 20px; }
.seo-holiday-panel.cn { border: 1px solid #efd1a9; background: #fff5e7; }
.seo-holiday-panel.jp { border: 1px solid #efcecb; background: var(--seo-red-soft); }
.seo-holiday-panel h3 { margin: 0 0 12px; font-size: 19px; }
.seo-holiday-list { margin: 0; padding: 0; list-style: none; }
.seo-holiday-list li { display: grid; grid-template-columns: minmax(116px, .85fr) 1.15fr; gap: 10px; padding: 8px 0; border-top: 1px solid rgba(95,78,42,.12); font-size: 14px; }
.seo-holiday-list li:first-child { border-top: 0; }
.seo-holiday-list time { color: #6e675a; font-variant-numeric: tabular-nums; }
.seo-audience-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; padding: 0; list-style: none; }
.seo-audience-list li { padding: 16px; border: 1px solid var(--seo-line); border-radius: 14px; background: var(--seo-card); }
.seo-faq details { margin-top: 10px; padding: 16px 18px; border: 1px solid var(--seo-line); border-radius: 14px; background: var(--seo-card); }
.seo-faq summary { cursor: pointer; font-weight: 800; }
.seo-faq details p { margin: 10px 0 0; color: #686258; }
.seo-bottom-cta { margin-top: 60px; padding: 32px; border-radius: 24px; background: #24221b; color: #fff; text-align: center; }
.seo-bottom-cta h2 { margin: 0 0 8px; }
.seo-bottom-cta p { margin: 0 0 20px; color: #d9d4c8; }
.seo-guide-footer { padding: 24px; border-top: 1px solid var(--seo-line); color: var(--seo-muted); text-align: center; font-size: 13px; }

@media (max-width: 720px) {
  .seo-card-grid, .seo-holiday-columns, .seo-audience-list { grid-template-columns: 1fr; }
  .seo-guide-header-inner, .seo-guide-main { width: min(100% - 28px, 920px); }
  .seo-guide-header-inner { min-height: 64px; }
  .seo-guide-logo img { height: 31px; }
  .seo-guide-home-link { font-size: 13px; }
  .seo-guide-main { padding-top: 28px; }
  .seo-guide-hero { padding: 26px 20px; border-radius: 20px; }
  .seo-guide-lead { font-size: 15px; }
  .seo-guide-section { padding-top: 42px; }
  .seo-holiday-panel { padding: 19px 16px; }
  .seo-holiday-list li { grid-template-columns: 112px 1fr; gap: 7px; font-size: 13px; }
}