.common-site-header,
.common-site-header * { box-sizing: border-box; }
.common-site-header { position: sticky; z-index: 50; top: 0; color: #22384a; background: #fff; border-bottom: 1px solid #b8c8d4; font-family: "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif; line-height: 1.75; }
.common-site-header a { color: inherit; text-decoration: none; }
.common-site-header .container { width: min(calc(100% - 40px), 1200px); margin: 0 auto; }
.common-site-header .header-inner { min-height: 84px; display: flex; align-items: center; gap: 28px; }
.common-site-header .brand { display: inline-flex; align-items: center; gap: 10px; flex: none; color: #10283d; }
.common-site-header .brand__mark { width: 44px; height: 44px; display: grid; place-items: center; color: #fff; background: #234b68; border-radius: 4px; font-family: Georgia, serif; font-size: 17px; font-weight: 800; letter-spacing: -.04em; }
.common-site-header .brand strong,
.common-site-header .brand small { display: block; line-height: 1.2; }
.common-site-header .brand strong { font-family: Georgia, serif; font-size: 20px; letter-spacing: .08em; }
.common-site-header .brand small { margin-top: 4px; font-size: 10px; letter-spacing: .08em; }
.common-site-header .global-nav { display: flex; align-items: stretch; align-self: stretch; gap: 4px; margin-left: auto; }
.common-site-header .global-nav a { min-width: 92px; padding: 0 12px; display: grid; place-items: center; color: #344d63; font-size: 13px; font-weight: 700; border-bottom: 3px solid transparent; }
.common-site-header .global-nav a:hover,
.common-site-header .global-nav a.is-current,
.common-site-header .global-nav a[aria-current="page"] { color: #234b68; border-bottom-color: #3e6a87; }
.common-site-header .global-nav .nav-contact { min-width: auto; height: 42px; align-self: center; padding: 0 18px; color: #fff; background: #234b68; border: 0; border-radius: 4px; }
.common-site-header .global-nav .nav-contact:hover,
.common-site-header .global-nav .nav-contact.is-current { color: #fff; background: #3e6a87; }
.common-site-header .header-phone { padding-left: 20px; display: flex; flex-direction: column; border-left: 1px solid #b8c8d4; line-height: 1.25; }
.common-site-header .header-phone small,
.common-site-header .header-phone span { color: #65798a; font-size: 9px; }
.common-site-header .header-phone strong { color: #234b68; font-family: Arial, sans-serif; font-size: 21px; letter-spacing: .02em; }
.common-site-header .menu-toggle { display: none; }
@media (max-width: 1100px) {
  .common-site-header .header-phone { display: none; }
  .common-site-header .global-nav a { min-width: auto; }
}
@media (max-width: 900px) {
  .common-site-header .container { width: min(calc(100% - 32px), 1200px); }
  .common-site-header .header-inner { min-height: 72px; }
  .common-site-header .menu-toggle { width: 49px; height: 49px; margin-left: auto; padding: 7px 10px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; color: #234b68; background: #fff; border: 1px solid #b8c8d4; }
  .common-site-header .menu-toggle span { width: 23px; height: 2px; background: #234b68; }
  .common-site-header .menu-toggle b { font-size: 7px; line-height: 1; }
  .common-site-header .global-nav { position: absolute; top: 100%; right: 0; left: 0; display: none; align-self: auto; gap: 0; padding: 8px 16px 18px; background: #fff; border-bottom: 1px solid #b8c8d4; box-shadow: 0 12px 18px rgba(8,30,21,.12); }
  .common-site-header .global-nav.is-open { display: grid; }
  .common-site-header .global-nav a,
  .common-site-header .global-nav .nav-contact { min-height: 48px; height: auto; justify-content: start; border-bottom: 1px solid #b8c8d4; }
  .common-site-header .global-nav .nav-contact { margin-top: 8px; justify-content: center; }
}