/* Hide New API header "系统更新" version button (e.g. v1.0.0-rc.37)
 * Served at: /brand/hide-version.css
 *
 * Source: New API frontend header component (not admin-configurable).
 * Version string comes from GET /api/status → version (image build),
 * rendered as: aria-label="系统更新，当前版本：v…"
 */

header button[aria-label*="系统更新"],
header button[title*="系统更新"],
header button[aria-label*="当前版本"],
header nav button[aria-label*="版本"],
button[aria-label*="系统更新，当前版本"] {
  display: none !important;
  visibility: hidden !important;
  width: 0 !important;
  min-width: 0 !important;
  height: 0 !important;
  padding: 0 !important;
  margin: 0 !important;
  overflow: hidden !important;
  border: 0 !important;
  pointer-events: none !important;
}