.site-announcement {
  border-bottom: 1px solid #b9c8dd;
  background: #e9f1fb;
  color: #203551;
}
.site-announcement-inner {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) 32px;
  gap: 11px;
  align-items: start;
  max-width: 1152px;
  margin: 0 auto;
  padding: 12px 16px;
  box-sizing: border-box;
}
.site-announcement-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: 1px solid #7d96b8;
  border-radius: 50%;
  font-family: Georgia, serif;
  font-size: 15px;
  font-weight: 700;
}
.site-announcement strong { display: block; margin: 1px 0 3px; font-size: 14px; line-height: 1.4; }
.site-announcement p { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; font-size: 13px; line-height: 1.6; }
.site-announcement-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin: -4px 0 0;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: inherit;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}
.site-announcement-close:hover { background: rgba(32, 53, 81, .1); }
.site-announcement[hidden] { display: none; }
html[data-theme="night"] .site-announcement { border-color: #3f516a; background: #1c2a3d; color: #d9e6f7; }
html[data-theme="night"] .site-announcement-mark { border-color: #7187a5; color: #e6eef9; }
html[data-theme="night"] .site-announcement-close:hover { background: rgba(217, 230, 247, .1); }
@media (max-width: 640px) {
  .site-announcement-inner { padding: 11px 16px; }
  .site-announcement { position: relative; z-index: 10; }
}