.entry-content .toc {
  margin: 2rem 0;
  padding: 2rem;
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
}

.entry-content .toc__title {
  margin: 0 0 1.5rem;
  font-size: 2rem;
  font-weight: bold;
  color: #d00a2d;
}

.entry-content .toc__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.entry-content .toc__item {
  margin-bottom: 1rem;
  color: #666;
  line-height: 1.6;
}

/* インデントと番号のスタイル */
.entry-content .toc__item {
  display: flex;
  gap: 0.5rem;
}

.entry-content .toc__item:before {
  content: attr(data-number) !important;
  color: #d00a2d;
  min-width: 1.5rem;
}

.entry-content .toc__item:not(.toc__item--h3):before {
  border-right: 1px solid #d00a2d;
  padding-right: 3px;
}

/* 第2階層のインデント */
.entry-content .toc__item--h3 {
  margin-left: 2rem;
  padding-left: 1em;
}

.entry-content .toc__link {
  color: #333;
  text-decoration: none;
}

.entry-content .toc__link:hover {
  color: #2ca9e1;
}