/* ── 全ページ共通ヘッダー（kit_nav.js が差し込む帯）────────────── */
.kitnav{background:#0f2436;border-bottom:1px solid #24445f}
.kitnav-wrap{max-width:1220px;margin:0 auto;display:flex;gap:6px;
  padding:9px 24px;flex-wrap:wrap}
.kitnav a{color:#c3d6e5;text-decoration:none;font-size:13px;font-weight:700;
  padding:5px 12px;border-radius:4px;white-space:nowrap}
.kitnav a:hover{background:#1c3a52;color:#fff}
.kitnav a.on{background:#e8590c;color:#fff}
@media(max-width:640px){.kitnav a{font-size:12px;padding:4px 9px}
  .kitnav-wrap{padding:7px 14px}}