.p-blog-single {
  width: 100%;
  max-width: none;
  margin: 0;
  overflow-x: clip;
  color: var(--osawa-color-text);
  background: var(--osawa-color-white);
  font-family: var(--osawa-font-sans);
  padding-top: 190px;
}

.p-blog-single *,
.p-blog-single *::before,
.p-blog-single *::after {
  box-sizing: border-box;
}

.p-blog-single a {
  color: inherit;
}

.p-blog-single__hero,
.p-blog-single__layout {
  width: min(calc(100% - 48px), 1040px);
  margin-inline: auto;
}

.p-blog-single__breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin: 4px 0 0;
  color: var(--osawa-color-accent);
  font-size: 20px;
  font-weight: 500;
  line-height: 1.5;
}

.p-blog-single__breadcrumb a {
  text-decoration: none;
}

.p-blog-single__meta {
  margin: 64px 0 0;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.5;
}

.p-blog-single__title {
  margin: 49px 0 0;
  padding: 0 0 15px;
  border-bottom: 2px solid var(--osawa-color-primary);
  font-family: var(--osawa-font-serif);
  font-size: 48px;
  font-weight: 600;
  line-height: 1.46;
  letter-spacing: 0;
}

.p-blog-single__eyecatch {
  width: 100%;
  height: 520px;
  margin: 50px 0 0;
  overflow: hidden;
}

.p-blog-single__eyecatch-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.p-blog-single__layout {
  display: grid;
  grid-template-columns: minmax(0, 733px) 273px;
  gap: 34px;
  align-items: start;
  margin-top: 96px;
  margin-bottom: 50px !important;
}

.p-blog-single__lead,
.p-blog-single__body {
  font-size: 20px;
  line-height: 1.6;
  text-align: justify;
}

.p-blog-single__lead p,
.p-blog-single__body p {
  margin: 0 0 32px;
}

.p-blog-single__toc {
  margin: 136px 4px 95px 0;
  background: var(--osawa-color-bg-warm);
}

.p-blog-single__lead + .p-blog-single__toc {
  margin-top: 136px;
}

.p-blog-single__toc:first-child {
  margin-top: 0;
}

.p-blog-single__toc h2 {
  margin: 0;
  padding: 8px 20px 10px;
  color: #fff;
  background: var(--osawa-color-secondary);
  font-family: var(--osawa-font-serif);
  font-size: 24px;
  font-weight: 400;
  line-height: 36px;
  text-align: center;
}

.p-blog-single__toc ol {
  margin: 0;
  padding: 9px 15px 12px 67px;
}

.p-blog-single__toc li {
  min-height: 65px;
  padding: 17px 12px 14px 3px;
  border-bottom: 1px solid #d9d9d9;
  font-size: 20px;
  line-height: 1.45;
}

.p-blog-single__toc li:last-child {
  border-bottom: 0;
}

.p-blog-single__toc a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Cocoonの[toc]にも、旧ブログ目次と同じデザインを適用する。 */
.p-blog-single__body .toc {
  width: 100%;
  margin: 136px 0 95px;
  padding: 0;
  border: 0;
  background: var(--osawa-color-bg-warm);
}

.p-blog-single__body .toc .toc-title {
  margin: 0;
  padding: 8px 20px 10px;
  color: #fff;
  background: var(--osawa-color-secondary);
  font-family: var(--osawa-font-serif);
  font-size: 24px;
  font-weight: 400;
  line-height: 36px;
  text-align: center;
}

/* Cocoonの開閉用キャプション（[開く]/[閉じる]）は表示しない。 */
.p-blog-single__body .toc .toc-title::after {
  display: none;
}

.p-blog-single__body .toc .toc-content {
  margin: 0;
  padding: 9px 20px 12px 67px;
}

.p-blog-single__body .toc .toc-content > ol,
.p-blog-single__body .toc .toc-content > ul {
  margin: 0;
  padding: 0;
}

.p-blog-single__body .toc .toc-content li {
  position: relative;
  min-height: 65px;
  padding: 17px 12px 14px 3px;
  border-bottom: 0;
  font-size: 20px;
  line-height: 1.45;
}

.p-blog-single__body .toc .toc-content li:not(:last-child)::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  /* リストの左インデントを戻し、目次ボックス左端から約5pxで開始 */
  left: -52px;
  height: 1px;
  background: #d9d9d9;
}

.p-blog-single__body .toc .toc-content li:last-child {
  border-bottom: 0;
}

.p-blog-single__body .toc .toc-content a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.p-blog-single__body > h1,
.p-blog-single__body > h2,
.p-blog-single__body > h3,
.p-blog-single__body > h4,
.p-blog-single__body > h5,
.p-blog-single__body > h6 {
  color: var(--osawa-color-text);
  scroll-margin-top: 200px;
}

.p-blog-single__body > h1 {
  margin: 80px 0 55px;
  padding: 0 0 19px;
  border-bottom: 2px solid var(--osawa-color-primary);
  font-family: var(--osawa-font-serif);
  font-size: 48px;
  font-weight: 600;
  line-height: 1.46;
}

.p-blog-single__body > h2 {
  min-height: 64px;
  margin: 64px 0 40px;
  padding: 8px 24px 9px 38px;
  border-left: 5px solid var(--osawa-color-primary);
  background: #f4f4f4;
  font-family: var(--osawa-font-serif);
  font-size: 30px;
  font-weight: 700;
  line-height: 47px;
}

.p-blog-single__body > h3 {
  display: table;
  margin: 56px 0 31px;
  padding: 0;
  border-bottom: 2px solid var(--osawa-color-primary);
  font-size: 24px;
  font-weight: 700;
  line-height: 47px;
}

.p-blog-single__body > h4 {
  margin: 48px 0 25px;
  font-size: 22px;
  font-weight: 700;
  line-height: 47px;
}

.p-blog-single__body > h4::before {
  color: var(--osawa-color-primary);
  content: "■";
}

.p-blog-single__body > h5 {
  margin: 40px 0 20px;
  font-size: 20px;
  font-weight: 700;
  line-height: 47px;
}

.p-blog-single__body > h6 {
  margin: 36px 0 18px;
  font-size: 20px;
  font-weight: 500;
  line-height: 47px;
}

.p-blog-single__body img {
  max-width: 100%;
  height: auto;
}

.p-blog-single__side-section {
  margin: 0;
}

.p-blog-single__side-section + .p-blog-single__side-section {
  margin-top: 51px;
}

.p-blog-single__side-section + .c-blog-category-list {
  margin-top: 51px;
}

.p-blog-single__side-section h2 {
  display: table;
  min-width: 140px;
  margin: 0;
  padding: 7px 21px 8px;
  color: #fff;
  background: var(--osawa-color-primary);
  font-family: var(--osawa-font-serif);
  font-size: 20px;
  font-weight: 400;
  line-height: 28px;
}

.p-blog-single__side-section ul {
  margin: 0;
  padding: 0;
  border: 1px solid var(--osawa-color-secondary);
  list-style: none;
}

.p-blog-single__side-section li {
  display: flex;
  align-items: center;
  min-height: 47px;
  margin: 0;
  padding: 8px 13px;
  border-bottom: 1px solid #d9d9d9;
  font-size: 17px;
  line-height: 1.4;
}

.p-blog-single__side-section li:last-child {
  border-bottom: 0;
}

.p-blog-single__side-section a,
.p-blog-single__side-section span {
  display: block;
  width: 100%;
}

.p-blog-single__side-section--related li {
  min-height: 101px;
  padding: 17px 20px;
  font-size: 17px;
  text-decoration: underline;
}

.c-article-footer--mobile-related {
  display: none;
}

@media screen and (min-width: 768px) {
  .p-blog-single .pc-none {
    display: none !important;
  }

  .p-blog-single__sidebar > .c-blog-category-list {
    margin-top: 54px;
  }

  .p-blog-single__toc li {
    position: relative;
    border-bottom: 0;
  }

  .p-blog-single__toc li:not(:last-child)::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 0;
    left: -51px;
    height: 1px;
    background: #d9d9d9;
  }
}

@media screen and (max-width: 767px) {
  .p-blog-single {
    padding-top: 56px;
  }

  .p-blog-single__hero,
  .p-blog-single__layout {
    width: min(calc(100% - 40px), 335px);
  }

  .p-blog-single__breadcrumb {
    margin-top: 43px;
    font-size: 12px;
    line-height: 1.45;
  }

  .p-blog-single__breadcrumb-break {
    flex: 0 0 100%;
    height: 0;
  }

  .p-blog-single__meta {
    margin-top: 31px;
    font-size: 16px;
  }

  .p-blog-single__title {
    margin-top: 31px;
    padding-bottom: 17px;
    font-size: 20px;
    font-weight: 500;
    line-height: 35px;
    letter-spacing: 2px;
  }

  .p-blog-single__eyecatch {
    height: 166px;
    margin-top: 34px;
  }

  .p-blog-single__layout {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-top: 44px;
  }

  .p-blog-single__lead,
  .p-blog-single__body {
    font-size: 16px;
    line-height: 26px;
  }

  .p-blog-single__lead p,
  .p-blog-single__body p {
    margin-bottom: 26px;
  }

  .p-blog-single__toc,
  .p-blog-single__lead + .p-blog-single__toc,
  .p-blog-single__body .toc {
    margin: 67px 0 45px;
  }

  .p-blog-single__toc h2,
  .p-blog-single__body .toc .toc-title {
    padding: 8px 16px 10px;
    font-size: 24px;
  }

  .p-blog-single__toc ol,
  .p-blog-single__body .toc .toc-content {
    padding: 8px 8px 9px 38px;
  }

  .p-blog-single__toc li,
  .p-blog-single__body .toc .toc-content li {
    position: relative;
    min-height: 63px;
    padding: 15px 4px 13px 0;
    border-bottom: 0;
    font-size: 16px;
  }

  .p-blog-single__toc li:not(:last-child)::after,
  .p-blog-single__body .toc .toc-content li:not(:last-child)::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 0;
    left: -33px;
    height: 1px;
    background: #d9d9d9;
  }

  .p-blog-single__body > h1 {
    margin: 48px 0 36px;
    padding-bottom: 17px;
    font-size: 20px;
    font-weight: 500;
    line-height: 35px;
    letter-spacing: 2px;
  }

  .p-blog-single__body > h1,
  .p-blog-single__body > h2,
  .p-blog-single__body > h3,
  .p-blog-single__body > h4,
  .p-blog-single__body > h5,
  .p-blog-single__body > h6 {
    scroll-margin-top: 80px;
  }

  .p-blog-single__body > h2 {
    min-height: 44px;
    margin: 48px 0 28px;
    padding: 0 14px 0 19px;
    font-size: 24px;
    line-height: 1.5;
    padding-top: 6px !important;
    padding-bottom: 6px !important;
  }

  .p-blog-single__body > h3 {
    margin: 40px 0 22px;
    font-size: 20px;
    line-height: 47px;
  }

  .p-blog-single__body > h4 {
    margin: 32px 0 18px;
    font-size: 18px;
    line-height: 47px;
  }

  .p-blog-single__body > h5 {
    margin: 28px 0 16px;
    font-size: 16px;
    line-height: 47px;
  }

  .p-blog-single__body > h6 {
    margin: 24px 0 14px;
    font-size: 16px;
    line-height: 47px;
  }

  .p-blog-single__sidebar {
    width: 100%;
    margin-top: 48px;
  }

  .p-blog-single__side-section + .p-blog-single__side-section {
    margin-top: 45px;
  }

  .p-blog-single__side-section + .c-blog-category-list {
    margin-top: 45px;
  }

  .p-blog-single__side-section h2 {
    min-width: 172px;
    height: 38px;
    padding: 4px 27px 5px;
    font-size: 20px;
  }

  .p-blog-single__side-section--related li {
    min-height: 59px;
    padding: 11px 16px;
    font-size: 15px;
  }

  .p-blog-single__sidebar > .p-blog-single__side-section--related {
    display: none;
  }

  .p-blog-single__sidebar > .c-article-footer--mobile-related {
    display: block;
    margin-top: 0;
    background: #fff;
  }

  .p-blog-single__sidebar > .c-article-footer--mobile-related .c-article-footer__related {
    padding: 0px 0 60px;
  }

  .p-blog-single > .c-article-footer:not(.c-article-footer--mobile-related) .c-article-footer__related {
    display: none;
  }

}