header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  border-bottom: 1px solid rgba(16, 25, 43, 0.1);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 6px 20px rgba(16, 25, 43, 0.06);
}

header.site-header .nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1180px, calc(100% - 40px));
  min-height: 72px;
  margin: 0 auto;
  padding: 0;
}

header.site-header .logo { display: flex; flex: 0 0 auto; align-items: center; }
header.site-header .logo img { display: block; width: auto; height: 52px; }
header.site-header .nav-menu { display: flex; flex: 0 0 auto; align-items: center; justify-content: flex-end; gap: 18px; }
header.site-header .nav-links { display: flex; flex: 0 0 auto; flex-wrap: wrap; justify-content: flex-end; gap: 8px 18px; }
header.site-header .nav-links a { color: #172033; font-size: 14px; font-weight: 800; text-decoration: none; }
header.site-header .nav-links a:hover, header.site-header .nav-links a[aria-current="page"] { color: #1e8bff; }

header.site-header .menu-dropdown { position: relative; flex: 0 0 auto; }
header.site-header .menu-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
  border: 0;
  color: #172033;
  background: transparent;
  cursor: pointer;
  font-size: 14px;
  font-weight: 800;
  list-style: none;
}
header.site-header .menu-trigger::after { content: '⌄'; font-size: 13px; line-height: 1; transition: transform 0.2s ease; }
header.site-header .menu-trigger:hover,
header.site-header .menu-dropdown.active .menu-trigger { color: #1e8bff; }
header.site-header .menu-dropdown.active .menu-trigger::after { transform: rotate(180deg); }
header.site-header .menu-content {
  display: none;
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: min(84vw, 320px);
  max-height: 78vh;
  padding: 18px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}
header.site-header .menu-dropdown.active .menu-content { display: block; animation: menuFade 0.2s ease both; }
@keyframes menuFade { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
header.site-header .menu-group { margin-bottom: 14px; }
header.site-header .group-title { margin-bottom: 5px; padding-bottom: 5px; border-bottom: 1px solid rgba(103, 80, 216, 0.18); color: var(--violet); font-size: 0.74rem; font-weight: 900; letter-spacing: 0.08em; }
header.site-header .menu-group a { display: block; padding: 7px 9px; border-radius: 6px; color: var(--ink); font-size: 0.84rem; font-weight: 750; line-height: 1.5; text-decoration: none; }
header.site-header .menu-group a:hover { color: var(--violet); background: #f5f3ff; }
header.site-header .menu-home-link { padding-top: 10px; border-top: 1px solid var(--line); }
header.site-header .menu-home-link a { display: block; padding: 8px; border-radius: 6px; color: var(--muted); background: #f7f8fb; font-size: 0.82rem; font-weight: 850; text-align: center; text-decoration: none; }

footer {
  padding: 30px 20px;
  color: #dce5ef;
  background: #10192b;
  font-size: 13px;
  line-height: 1.8;
}

/* 2026-07-29: 共通フッターにLINE公式アカウントのQRコードを追加 */
footer .footer-inner { display: flex; align-items: center; justify-content: center; gap: 32px; width: min(100%, 1180px); margin: 0 auto; }
footer .footer-content { min-width: 0; text-align: center; }
footer .footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 18px; margin-bottom: 10px; }
footer .footer-links a { color: #fff; font-weight: 800; text-decoration: none; }
footer .footer-links a:hover { color: #6cc6ff; }
footer p { margin: 0; }
footer .footer-line-qr { flex: 0 0 auto; width: 110px; height: 110px; padding: 5px; border-radius: 6px; background: #fff; }
/* 2026-07-29: LINEのQRコード横にお問い合わせ案内を追加 */
footer .footer-line-guide { flex: 0 1 auto; margin-left: -18px; color: #06c755; font-size: 15px; font-weight: 800; line-height: 1.45; text-align: left; text-shadow: 0 1px 0 rgba(0, 0, 0, 0.2); white-space: nowrap; }

@media (max-width: 780px) {
  header.site-header .nav { width: min(100% - 28px, 1180px); min-height: 64px; }
  header.site-header .nav-links { display: none; }
  header.site-header .logo img { height: 48px; }
  header.site-header .menu-trigger { font-size: 14px; }
  header.site-header .menu-content { right: -2px; }
  footer .footer-inner { flex-direction: column; gap: 16px; }
  footer .footer-line-guide { margin: -6px 0 -8px; text-align: center; }
}