#site-banner {
  flex: none;
  padding: 7px 12px;
  color: var(--accent, #d99873);
  background: var(--bg-soft, #241d19);
  border-bottom: 1px solid var(--line, #49382d);
  text-align: center;
  font: 12px/18px -apple-system, BlinkMacSystemFont, "PingFang SC", sans-serif;
}
#site-banner[hidden] { display: none; }
body:has(> #app) { display: flex; flex-direction: column; }
body > #app { flex: 1; min-height: 0; width: 100%; }