.column-inner {
  max-width: 930px;
  padding: 16.5rem 15px 12rem;
}
.column-single-title-box {
  border-bottom: 1px solid rgba(206, 206, 206, 0.87);
  padding-bottom: 3rem;
  margin-bottom: 10rem;
}
.column-thumbnail-box {
  margin-bottom: 3.5rem;
}
.column-thumbnail-box img {
  width: 100%;
  border-radius: 1.6rem;
}
.column-single-title {
  font-size: 4.8rem;
  margin-bottom: 1.5rem;
}
.column-content {
  font-size: 2rem;
  line-height: 1.8;
}
.column-content p,
.column-content h2,
.column-content h3,
.column-content h4,
.column-content h5,
.column-content h6 {
  margin-bottom: 2rem;
}
.column-content .no-margin {
  margin-bottom: 1rem;
}
.column-content .big-margin {
  margin-bottom: 3.5rem;
}
.column-content hr {
  color: rgba(206, 206, 206, 0.87);
  border-top-width: 1px;
  margin: 10rem 0;
}
.related-columns {
  padding: 10rem 0 0;
}
.related-columns .sub {
  font-size: 2.8rem;
  margin-bottom: 2rem;
}
.related-columns .column-list {
  row-gap: 3rem;
  column-gap: 3rem;
}
.related-columns .column-title {
  font-size: 2rem;
}
.list-btn-box {
  border-top: 1px solid rgba(206, 206, 206, 0.87);
  padding-top: 3rem;
  margin-top: 5.5rem;
}
.list-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.list-btn .sub {
  font-size: 1.6rem;
  color: #222;
  margin: 0;
}
@media (max-width: 768px) {
  .column-single-title {
    font-size: 3.5rem;
  }
}