body .site-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(12px, 1.4vw, 24px);
  height: 96px;
  padding: 0 clamp(16px, 2.5vw, 36px);
  position: sticky;
  top: 0;
  z-index: 20;
  background: #fff;
  border-bottom: 1px solid #eee;
  box-shadow: 0 3px 9px #00000007;
  color: #292929;
  font: 500 14px/1.4 "Be Vietnam Pro", Arial, sans-serif;
}
body .site-header a { color: inherit; text-decoration: none; }
body .site-header .brand { display: inline-flex; align-items: center; gap: 8px; font: 600 23px/1 "Be Vietnam Pro", Arial, sans-serif; white-space: nowrap; }
body .site-header .brand-icon { display: block; width: 33px; height: 33px; color: #d7352c; }
body .site-header .brand-icon svg { width: 100%; height: 100%; }
body .site-header .brand .orange { color: #d7352c; }
body .site-header .brand small { display: block; margin-top: 4px; color: #555; font: 400 8px/1.4 "Be Vietnam Pro", Arial, sans-serif; letter-spacing: .09em; }
body .site-header nav, .site-header-actions { display: flex; align-items: center; gap: clamp(10px, 1.3vw, 20px); min-width: 0; }
body .site-header nav { overflow-x: auto; flex-wrap: nowrap; margin: 0; padding: 0 4px; white-space: nowrap; font: inherit; }
body .site-header nav a { flex: 0 0 auto; padding: 10px 0; }
body .site-header nav a.active::after { bottom: 4px; }
.site-header-actions { white-space: nowrap; }
body .site-header .site-header-post { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 0 12px; border-radius: 6px; background: #c83229; color: #fff; }
body .site-header a:focus-visible { outline: 2px solid #a52a24; outline-offset: 2px; }
body .site-header a:hover { text-decoration: underline; }
@media (max-width: 900px) {
  body .site-header { grid-template-columns: minmax(0, 1fr) auto; gap: 0 8px; height: auto; padding: 8px 14px 0; }
  body .site-header nav { grid-column: 1 / -1; grid-row: 2; gap: 16px; }
  .site-header-actions { gap: 10px; }
}
@media (max-width: 450px) {
  body .site-header .brand { font-size: 19px; gap: 4px; }
  body .site-header .brand-icon { width: 25px; height: 25px; }
  .site-header-actions { font-size: 12px; gap: 7px; }
  body .site-header .site-header-post { padding-inline: 7px; }
}