.blog-toc {
  border: 1px solid rgba(0,0,0,.08);
  border-radius: 10px;
  padding: 14px 16px;
  margin: 14px 0 18px;
  background: rgba(0,0,0,.02);
}

.blog-toc__title {
  font-weight: 700;
  margin: 0 0 10px;
}

.blog-toc ul { 
  margin: 0;
  padding-left: 18px;
}

.blog-toc li {
  margin: 6px 0;
}

.blog-toc a {
  text-decoration: none;
}

.blog-toc a:hover {
  text-decoration: underline;
}

.blog-toc .is-h3 {
  margin-left: 14px;
  font-size: 0.95em;
  opacity: .9;
}

.blog-related {
  margin: 26px 0 18px;
  padding: 0;
}

.blog-related__title {
  font-weight: 700;
  margin: 0 0 12px;
}

.blog-related__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.blog-related__card {
  display: block;
  border: 1px solid rgba(0,0,0,.08);
  border-radius: 10px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  background: #fff;
}

.blog-related__img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  background: rgba(0,0,0,.04);
}

.blog-related__body {
  padding: 10px 12px 12px;
}

.blog-related__h {
  font-weight: 700;
  margin: 0 0 6px;
  line-height: 1.2;
}

.blog-related__p {
  margin: 0;
  opacity: .8;
  font-size: 0.95em;
  line-height: 1.35;
}

@media (max-width: 900px) {
  .blog-related__grid {
    grid-template-columns: 1fr;
  }
}