/* LP01（/lp/01/）と同じヘッダー。値は lp/01/lp.css の nav をそのまま移植し、.site-nav で囲って manual.css と衝突させない */
.site-nav {
  --sn-navy: #0e1740;
  --sn-orange: #dd6e37;
  --sn-orange-2: #c85f2b;
  --sn-ink: #161c33;
  --sn-muted: #5b6478;
  --sn-line: #e3e7ef;
  position: sticky;
  top: 0;
  z-index: 50;
  font-family: 'Noto Sans JP', system-ui, -apple-system, "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  line-height: 1.8;
  background: rgba(245, 247, 251, .86);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, background .2s;
}
.site-nav.scrolled { background: rgba(255, 255, 255, .92); border-color: var(--sn-line); }
.site-nav .sn-inner { width: min(1120px, calc(100% - 40px)); margin-inline: auto; display: flex; align-items: center; gap: 28px; min-height: 72px; }
.site-nav .sn-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 900; font-size: 20px; color: var(--sn-navy); letter-spacing: .02em; line-height: 1.2; white-space: normal; }
.site-nav .sn-brand img { width: 38px; height: 38px; display: block; }
.site-nav .sn-brand small { display: block; font-size: 11px; font-weight: 700; color: var(--sn-muted); letter-spacing: .04em; line-height: 1.2; margin-top: 2px; }
.site-nav .sn-links { display: flex; gap: 26px; margin-left: auto; font-size: 14px; font-weight: 700; }
.site-nav .sn-links a { text-decoration: none; color: var(--sn-ink); opacity: .8; border: 0; }
.site-nav .sn-links a:hover, .site-nav .sn-links a[aria-current="page"] { opacity: 1; color: var(--sn-orange); }
.site-nav .sn-cta { display: flex; gap: 10px; align-items: center; }
.site-nav .sn-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 20px; border-radius: 999px; font-weight: 700; font-size: 14px; text-decoration: none; border: 2px solid transparent; transition: transform .15s, box-shadow .15s, background .15s; white-space: nowrap; }
.site-nav .sn-btn:hover { transform: translateY(-1px); }
.site-nav .sn-btn--ghost { background: #fff; color: var(--sn-navy); border-color: var(--sn-line); }
.site-nav .sn-btn--ghost:hover { border-color: var(--sn-navy); }
.site-nav .sn-btn--primary { background: var(--sn-orange); color: #fff; box-shadow: 0 10px 24px rgba(221, 110, 55, .35); }
.site-nav .sn-btn--primary:hover { background: var(--sn-orange-2); }
@media (max-width: 900px) {
  .site-nav .sn-links { display: none; }
  .site-nav .sn-cta { margin-left: auto; }
  .site-nav .sn-btn--ghost { display: none; }
  .site-nav .sn-brand small { display: none; }
}
@media print {
  .site-nav { display: none; }
}