/* R26: crawlable, server-rendered SEO landing pages. */
.seo-landing {
  --seo-paper: #f7f3eb;
  --seo-ink: #172238;
  --seo-muted: #58657a;
  --seo-line: #d9d1c3;
  --seo-accent: #bd503e;
  min-height: 100vh;
  color: var(--seo-ink);
  background: var(--seo-paper);
  font-family: "Hiragino Kaku Gothic ProN", "Noto Sans CJK JP", Meiryo, system-ui, sans-serif;
}
.seo-landing a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .2em; }
.seo-landing a:focus-visible { outline: 3px solid #2466c7; outline-offset: 3px; border-radius: 4px; }
.seo-landing-header { display: flex; align-items: center; gap: 1.2rem; justify-content: space-between; padding: 1rem clamp(1rem, 4vw, 3.5rem); border-bottom: 1px solid var(--seo-line); background: #fbf8f2; }
.seo-landing-brand { display: flex; align-items: center; gap: .7rem; text-decoration: none !important; flex: 0 0 auto; }
.seo-landing-brand-mark { display: grid; place-items: center; width: 2.65rem; height: 2.65rem; color: #fffaf0; background: var(--seo-accent); border-radius: .7rem; font-size: 1.35rem; font-weight: 800; }
.seo-landing-brand strong, .seo-landing-brand small { display: block; }
.seo-landing-brand strong { font-size: .95rem; letter-spacing: .02em; }
.seo-landing-brand small { color: var(--seo-muted); font-size: .62rem; letter-spacing: .16em; margin-top: .12rem; }
.seo-landing-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: .3rem .9rem; }
.seo-landing-nav a { color: #39465b; font-size: .82rem; text-decoration: none; padding: .45rem .2rem; }
.seo-landing-nav a:hover { color: var(--seo-accent); }
.seo-landing-header-cta { background: var(--seo-ink); color: white !important; border-radius: .6rem; padding: .72rem 1rem; font-weight: 750; font-size: .82rem; text-decoration: none !important; white-space: nowrap; }
.seo-landing-article { width: min(100% - 2rem, 980px); margin: 0 auto; padding: clamp(1.5rem, 4vw, 3rem) 0 4rem; }
.seo-landing-breadcrumb { display: flex; gap: .55rem; align-items: center; color: var(--seo-muted); font-size: .78rem; margin-bottom: 2rem; overflow-wrap: anywhere; }
.seo-landing-eyebrow { color: var(--seo-accent); font-size: .75rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; margin: 0 0 .75rem; }
.seo-landing h1 { max-width: 18ch; margin: 0 0 1.25rem; font-size: clamp(2rem, 5vw, 3.8rem); line-height: 1.17; letter-spacing: -.04em; text-wrap: balance; }
.seo-landing-lead { max-width: 78ch; color: #39465b; font-size: clamp(1rem, 1.6vw, 1.12rem); line-height: 1.9; margin: 0 0 .8rem; }
.seo-landing-sections { display: grid; gap: 1rem; margin-top: 2.2rem; }
.seo-landing-section { border: 1px solid var(--seo-line); border-radius: 1rem; background: #fffdf8; padding: clamp(1rem, 3vw, 1.55rem); }
.seo-landing-section h2 { font-size: clamp(1.15rem, 2vw, 1.4rem); margin: 0 0 .6rem; line-height: 1.4; }
.seo-landing-section p, .seo-landing-section li { color: #39465b; line-height: 1.85; font-size: .96rem; }
.seo-landing-section p { margin: 0; }
.seo-landing-section ul { margin: .7rem 0 0; padding-left: 1.25rem; }
.seo-stage-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .85rem; margin: 1.8rem 0; }
.seo-stage-card { min-width: 0; padding: 1rem; border: 1px solid var(--seo-line); border-radius: .9rem; background: #fffdf8; }
.seo-stage-card-top { display: flex; justify-content: space-between; color: var(--seo-muted); font-size: .7rem; font-weight: 800; letter-spacing: .08em; }
.seo-stage-glyph { display: grid; place-items: center; height: 4rem; font-size: 2.6rem; font-weight: 800; color: var(--seo-accent); }
.seo-stage-card h2 { font-size: 1rem; margin: 0 0 .4rem; }
.seo-stage-card p { margin: .25rem 0; color: var(--seo-muted); font-size: .86rem; line-height: 1.6; }
.seo-stage-card .seo-stage-target { color: var(--seo-ink); font-weight: 750; }
.seo-landing-faq { margin-top: 2.5rem; }
.seo-landing-faq h2, .seo-landing-related h2 { font-size: 1.4rem; margin: 0 0 .9rem; }
.seo-landing-faq section { padding: 1rem 0; border-bottom: 1px solid var(--seo-line); }
.seo-landing-faq h3 { margin: 0; font-size: 1rem; font-weight: 750; line-height: 1.6; }
.seo-landing-faq section p { color: #39465b; line-height: 1.8; margin: .65rem 0 0; }
.seo-landing-related { margin-top: 2.5rem; }
.seo-related-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .7rem; }
.seo-related-grid a { position: relative; display: flex; flex-direction: column; gap: .35rem; padding: 1rem 2.3rem 1rem 1rem; border: 1px solid var(--seo-line); border-radius: .8rem; background: #fffdf8; text-decoration: none; min-width: 0; }
.seo-related-grid a strong { font-size: .95rem; }
.seo-related-grid a span:not(.seo-related-arrow) { color: var(--seo-muted); font-size: .8rem; line-height: 1.55; }
.seo-related-arrow { position: absolute; top: .9rem; right: .9rem; color: var(--seo-accent); }
.seo-landing-cta { display: flex; align-items: center; justify-content: space-between; gap: 1.2rem; margin-top: 2.5rem; padding: clamp(1rem, 3vw, 1.5rem); border-radius: 1rem; background: #e9e1d3; }
.seo-landing-cta p { color: var(--seo-accent); font-size: .7rem; font-weight: 800; letter-spacing: .12em; margin: 0 0 .4rem; }
.seo-landing-cta h2 { font-size: 1.25rem; margin: 0 0 .3rem; }
.seo-landing-cta span { display: block; color: #39465b; font-size: .88rem; line-height: 1.65; }
.seo-landing-cta > a { flex: 0 0 auto; background: var(--seo-accent); color: white; font-weight: 800; padding: .85rem 1rem; border-radius: .65rem; text-decoration: none; }
.seo-landing-footer { display: flex; align-items: flex-start; justify-content: space-between; flex-direction: column; gap: 1rem; padding: 1.2rem clamp(1rem, 4vw, 3.5rem); border-top: 1px solid var(--seo-line); color: var(--seo-muted); font-size: .78rem; }
.site-index-links { display: flex; flex-wrap: wrap; gap: 8px 14px; width: 100%; margin-top: 22px; padding-top: 14px; border-top: 1px solid #c7bda9; }
.site-index-links a, .site-index-links span { color: #1c2d40; font-size: 13px; font-weight: 800; line-height: 1.4; text-decoration: underline; text-underline-offset: 3px; }
.site-index-links span { text-decoration: none; background: #ffe08a; border-radius: 999px; padding: 2px 8px; }
.seo-landing-footer nav { display: flex; flex-wrap: wrap; gap: .8rem; }
.seo-landing-footer a { text-decoration: none; }
.seo-route-discovery { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .7rem; margin: 1.2rem 0 0; }
.seo-route-discovery a { display: flex; flex-direction: column; gap: .3rem; padding: .85rem; border: 1px solid #c7bda9; border-radius: .7rem; color: #f9f4e9; background: #172238; text-decoration: none; }
.seo-route-discovery a strong { font-size: .88rem; }
.seo-route-discovery a span { color: #d4d9e2; font-size: .75rem; line-height: 1.5; }
@media (max-width: 820px) {
  .seo-landing-header { flex-wrap: wrap; }
  .seo-landing-nav { order: 3; width: 100%; justify-content: flex-start; border-top: 1px solid var(--seo-line); padding-top: .55rem; }
  .seo-landing-header-cta { margin-left: auto; }
}
@media (max-width: 520px) {
  .seo-landing-header { gap: .8rem; padding: .85rem 1rem; }
  .seo-landing-brand-mark { width: 2.35rem; height: 2.35rem; }
  .seo-landing-brand strong { font-size: .83rem; }
  .seo-landing-brand small { font-size: .55rem; }
  .seo-landing-header-cta { font-size: .75rem; padding: .62rem .7rem; }
  .seo-landing-nav { gap: .15rem .7rem; }
  .seo-landing-nav a { font-size: .76rem; }
  .seo-landing-article { width: min(100% - 1.25rem, 980px); padding-top: 1.3rem; }
  .seo-stage-grid, .seo-related-grid, .seo-route-discovery { grid-template-columns: minmax(0, 1fr); }
  .seo-landing-cta { align-items: stretch; flex-direction: column; }
  .seo-landing-cta > a { text-align: center; }
  .seo-landing-footer { align-items: flex-start; flex-direction: column; }
}