message: feat(md-enhance): improve detail a11y
diff: display: block;
  margin: 1.6em 0;
  - padding: 1.5rem;
  border-radius: 0.5rem;
  background: var(--detail-bg-color);
  summary {
  position: relative;
  -
  - padding-left: 2.5rem;
  -
  - outline: none;
  + padding: 1.5rem 1.5rem 1.5rem 4rem;
  list-style: none;
  -
  cursor: pointer;
  // a deprecated prefix
  position: absolute;
  top: calc(50% - 0.75rem);
  - left: 0;
  + left: 1.5rem;
  width: 1.5rem;
  height: 1.5rem;
  