/* 三公顶部栏 v379：用一个透明的大边框圈住三个独立按钮。 */
html body #room#room.sangong-mode > .room-head,
html body.theme-pearl-blue #room#room.sangong-mode > .room-head {
  border: 2px solid rgba(255, 226, 154, .96) !important;
  border-radius: 999px !important;
  background: transparent !important;
  box-shadow:
    inset 0 0 0 1px rgba(220, 241, 255, .42),
    0 3px 8px rgba(4, 24, 70, .18) !important;
}

html body #room#room.sangong-mode > .room-head::before,
html body.theme-pearl-blue #room#room.sangong-mode > .room-head::before {
  content: none !important;
  display: none !important;
}

html body #room#room.sangong-mode > .room-head > #backBtn::before,
html body.theme-pearl-blue #room#room.sangong-mode > .room-head > #backBtn::before {
  content: "↩" !important;
  display: inline-block !important;
}