.c-article-detail {
  padding-top: 6rem;
}
.c-article-detail__layout {
  display: block;
  max-width: 760px;
  width: calc(100% - 48px);
}
.c-article-detail__header-fixed {
  height: auto;
  overflow: visible;
  padding: 4rem 0 2rem;
  position: static;
  width: 100%;
}
.c-column-breadcrumb {
  margin-bottom: 1.25rem;
}
.c-column-breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0rem .35rem;
}
.c-column-breadcrumb li {
  color: var(--color-text-muted);
  font-size: .7rem;
  line-height: 1.6;
  opacity: .6;
}
.c-column-breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: .35rem;
}
.c-column-breadcrumb a {
  color: inherit;
  text-decoration: none;
}
.c-column-breadcrumb a:hover {
  text-decoration: underline;
  text-underline-offset: .2rem;
}
.c-article-detail__h1 {
  font-size: 2.25rem;
  line-height: 1.45;
  margin-bottom: .4rem;
}
.c-article-detail__title {
  color: var(--color-text-muted);
  font-size: .9rem;
  line-height: 1.8;
  margin-bottom: 0;
  opacity: .6;
}
.c-article-detail__scroll-area {
  margin-left: 0;
  padding: 0 0 8rem;
  width: 100%;
}

.c-column-toc {
  background: var(--color-surface-muted);
  border: 1px solid var(--color-border-company);
  margin: 1rem 0 2rem;
  padding: 1.2rem;
}
.c-column-toc__title,
.c-column-section-label {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .08em;
}
.c-column-toc__list {
  margin-top: 1rem;
  padding-left: 1.4rem;
}
.c-column-toc__list li {
  font-size: .9rem;
  line-height: 1.7;
  margin-top: .5rem;
}
.c-column-toc__list a,
.c-column-text-link {
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: .25rem;
}
.c-column-company,
.c-column-related {
  margin-top: 4rem;
  padding-top: 0rem;
}
.c-article-detail__main-content > section:not(.c-column-company):not(.c-column-related) > h2 {
  border-bottom: 1px solid var(--color-border-company);
  padding-left: 1.8rem;
  position: relative;
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
}
.c-article-detail__main-content > section:not(.c-column-company):not(.c-column-related) > h2::before {
  background: var(--color-text);
  content: "";
  clip-path: polygon(60% 0, 100% 0, 40% 100%, 0 100%);
  height: 1.2em;
  left: 0;
  position: absolute;
  top: 0;
  width: 10px;
}
.c-column-company {
  border: 1px solid var(--color-border-company);
  padding: 2rem 2rem 2rem;
}
.c-column-company h2,
.c-column-related h2 {
  margin: .6rem 0 0;
}

.c-column-company__list {
  margin: 1.25rem 0 0;
}
.c-column-company__list > div {
  border-bottom: 1px solid var(--color-border-company);
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 7rem 1fr;
  padding: .85rem 0;
}
.c-column-company__list > div:first-child {
  border-top: 1px solid var(--color-border-company);
}
.c-column-company__list dt {
  font-weight: 700;
}
.c-column-company__list dd {
  line-height: 1.8;
}
.c-column-related__grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 2rem;
}
.c-column-index-button {
  margin-top: 4rem;
}

@media (max-width:768px) {
  .c-article-detail {
    padding-top: 0;
  }
  .c-article-detail__layout {
    max-width: 86.7vw;
    width: 100%;
  }
  .c-article-detail__header-fixed {
    padding: 9.9vw 0 4vw;
  }
  .c-column-breadcrumb {
    margin-bottom: 4vw;
  }
  .c-column-breadcrumb li {
    font-size: 2.6vw;
  }
  .c-article-detail__h1 {
    font-size: 5.2vw;
    line-height: 1.4;
  }
  .c-article-detail__title {
    font-size: 3.2vw;
    line-height: 1.8;
  }
  .c-article-detail__scroll-area {
    padding-bottom: 16vw;
  }
  .c-column-toc {
    margin: 0 0 2rem;
    padding: 0.8rem;
  }
  .c-article-detail__main-content > img:not(.c-column-thumbnail) {
    margin-top: 2rem;
    margin-bottom: 2rem;
  }
  .c-column-company,
  .c-column-related {
    margin-top: 3rem;
    padding-top: 0;
  }
  .c-column-company {
    padding: 1rem 1rem 1.4rem;
  }
  .c-column-company .c-column-section-label,
  .c-column-related .c-column-section-label {
    font-size: .8rem;
  }
  .c-column-company h2 {
    font-size: 1.3rem;
    line-height: 1.4;
    margin-top: .5rem;
  }
  .c-column-related h2 {
    font-size: 1.3rem;
    line-height: 1.4;
    margin-top: .5rem;
  }
  .c-column-related {
    margin-top: 10vw;
    /* padding-top: 5vw; */
  }
  .c-column-company__list {
    margin: 1rem 0 0;
  }
  .c-column-company__list > div {
    display: block;
    padding: 0.6rem 0;
  }
  .c-column-company__list dt {
    font-size: .8rem;
    line-height: 1.5;
  }
  .c-column-company__list dd {
    font-size: .8rem;
    line-height: 1.4;
    margin: .4rem 0 0;
  }
  .c-column-related__grid {
    grid-template-columns: 1fr;
    gap: 10vw;
    margin-top: 6vw;
  }
}