/* 背景模式选中态：仅跟随 JS 的 is-selected，取消旧版透明底常亮。 */
body.mimo-theme #mimo-bg-mode-group .mimo-bg-choice,
body.mimo-theme aside #mimo-bg-mode-group .mimo-bg-choice {
  background:transparent !important;
  background-image:none !important;
  border:1px solid transparent !important;
  color:var(--mimo-ink) !important;
  -webkit-text-fill-color:var(--mimo-ink) !important;
  border-radius:7px !important;
  box-shadow:none !important;
  font-size:11px;
  min-height:34px;
  white-space:nowrap;
}
body.mimo-theme #mimo-bg-mode-group #btn-bg-transparent {
  background:var(--mimo-field) !important;
  border:1px solid var(--mimo-rule) !important;
}
body.mimo-theme #mimo-bg-mode-group #bg-solid-choice {
  background:var(--mimo-field) !important;
  border:1px solid var(--mimo-rule) !important;
  transition:background-color .18s ease,border-color .18s ease;
}
body.mimo-theme #mimo-bg-mode-group #bg-color-label {
  color:var(--mimo-copy) !important;
  -webkit-text-fill-color:var(--mimo-copy) !important;
  font-size:9px;
}
body.mimo-theme #mimo-bg-mode-group #btn-bg-transparent.is-selected,
body.mimo-theme #mimo-bg-mode-group #bg-solid-choice.is-selected {
  background:var(--mimo-accent-soft) !important;
  border-color:var(--mimo-accent) !important;
}
body.mimo-theme #mimo-bg-mode-group .mimo-bg-choice.is-selected,
body.mimo-theme #mimo-bg-mode-group #bg-solid-choice.is-selected #btn-bg-solid {
  color:var(--mimo-accent) !important;
  -webkit-text-fill-color:var(--mimo-accent) !important;
  font-weight:800 !important;
}
body.mimo-theme #mimo-bg-mode-group #bg-color-picker {
  appearance:auto !important;
  border:1px solid var(--mimo-rule) !important;
  padding:0 !important;
  min-height:20px !important;
  min-width:20px;
  cursor:pointer;
}
body.mimo-theme #mimo-bg-mode-group .mimo-bg-choice:focus-visible,
body.mimo-theme #mimo-bg-mode-group #bg-color-picker:focus-visible {
  outline:2px solid var(--mimo-accent) !important;
  outline-offset:2px;
}