/**
 * 全屏子视图关闭后必须完全脱离文档流。
 * 否则 .gk-page / .lk-page 等 display:flex !important 会压过 .hidden，在 view-app 下方叠出大块空白。
 */
#view-gomoku.hidden,
#view-qq-farm.hidden,
#view-link.hidden,
#view-fight.hidden,
#view-pet.hidden,
#view-game-center.hidden,
#view-kb.hidden,
#view-audit.hidden,
#view-leader.hidden,
#view-friends.hidden,
#view-dm.hidden,
#view-issue.hidden {
  display: none !important;
  height: 0 !important;
  min-height: 0 !important;
  max-height: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  overflow: hidden !important;
  visibility: hidden !important;
  pointer-events: none !important;
  border: none !important;
}