.site-header { height: 64px; }
.site-header .header-inner { width: 100%; min-height: 0; max-width: 1440px; padding: 0 24px; gap: 30px; }
.site-header .brand-word { font-size: 25px; font-weight: 500; }
.site-header .brand-latin { display: none; }
.site-header .primary-nav { gap: 24px; flex: 1; justify-content: center; }
.site-header .primary-nav > a { padding: 21px 0; font-size: 14px; }
.site-header .primary-nav > a::after { bottom: 12px; }
.nav-module-badge { display: inline-block; margin-left: 5px; padding: 1px 4px; border: 1px solid var(--line); border-radius: 2px; color: var(--ink-soft); font: 9px var(--sans); vertical-align: middle; }
.site-header .header-action { display: inline-flex; align-items: center; min-height: 40px; border-radius: 4px; }
.site-header .nav-toggle { width: 40px; height: 40px; min-height: 40px; }
@media (max-width: 1100px) { .site-header .header-inner { gap: 18px; } .site-header .primary-nav { gap: 17px; } }
@media (max-width: 820px) {
  .site-header .header-inner { padding: 0 16px; gap: 14px; }
  .site-header .brand-word { font-size: 23px; }
  .site-header .primary-nav { top: 64px; bottom: auto; height: auto; padding: 12px 16px; max-height: calc(100svh - 64px); overflow-y: auto; }
  .nav-open .site-header .primary-nav { display: grid; grid-template-columns: 1fr; gap: 0; }
  .site-header .primary-nav > a { padding: 14px 12px; }
}
@media (prefers-reduced-motion: reduce) { .site-header, .site-header .primary-nav > a::after { transition: none; } }