/* Docsify 系列文章手风琴。需求和行为说明见同目录 README.md。 */
body.docs-page .sidebar-nav > ul > li.sidebar-series {
  position: relative;
}

body.docs-page .sidebar-nav > ul > li.sidebar-series > p > a {
  padding-left: 1.5rem;
}

body.docs-page .sidebar-series > ul[hidden] {
  display: none !important;
}

body.docs-page .sidebar-series-toggle {
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 2em;
  padding: 0;
  border: 0;
  background: transparent;
  color: #6b7280;
  font: inherit;
  cursor: pointer;
}

body.docs-page .sidebar-series-toggle > svg {
  display: block;
  width: 0.8rem;
  height: 0.8rem;
  overflow: visible;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  transform-origin: center;
  transition: transform 160ms ease;
}

body.docs-page .sidebar-series.is-expanded > .sidebar-series-toggle > svg {
  transform: rotate(90deg);
}

body.docs-page .sidebar-series-toggle:hover,
body.docs-page .sidebar-series-toggle:focus-visible {
  color: #1890ff;
}

body.docs-page .sidebar-series-toggle:focus-visible {
  outline: 2px solid #91caff;
  outline-offset: -2px;
  border-radius: 0.25rem;
}