.single .column_list_back {
  margin-top: 3em;
}
.single #ez-toc-container {
  width: 100%;
  max-width: 550px;
  background: #f4f4f4;
  margin: 60px auto 60px;
  padding: 32px;
  border: 1px solid #e5e7eb;
}
@media screen and (max-width: 768px) {
  .single #ez-toc-container {
    padding: 24px 20px;
    border-radius: 16px;
  }
}
.single #ez-toc-container a:visited {
  color: inherit;
}
.single #ez-toc-container .ez-toc-title-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid #eee;
}
.single #ez-toc-container .ez-toc-title {
  position: relative;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
}
@media screen and (max-width: 768px) {
  .single #ez-toc-container .ez-toc-title {
    font-size: 4.5vw;
  }
}
.single #ez-toc-container .ez-toc-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.single #ez-toc-container li {
  line-height: 1.8;
}
.single #ez-toc-container .ez-toc-link {
  position: relative;
  display: inline-block;
  padding-left: 18px;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: 0.3s;
}
.single #ez-toc-container .ez-toc-link::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #0059b3;
}
.single #ez-toc-container .ez-toc-link:hover {
  color: #0059b3;
}
.single #ez-toc-container .ez-toc-list-level-3 {
  margin-top: 10px;
  margin-left: 12px;
  padding-left: 18px;
  border-left: 1px solid #dbeafe;
}
.single #ez-toc-container .ez-toc-list-level-3 .ez-toc-link {
  font-size: 14px;
}
.single #ez-toc-container .ez-toc-list-level-3 .ez-toc-link::before {
  width: 5px;
  height: 5px;
  background: #93c5fd;
}
.single .author_box {
  width: 80%;
  display: flex;
  gap: 24px;
  margin-top: 80px;
  padding: 2em;
  background: #f8fafc;
  border: 1px solid #e5e7eb;
}
.single .author_box .author_icon {
  flex-shrink: 0;
  width: 100px;
}
.single .author_box .author_icon img {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
  border-radius: 50%;
}
.single .author_box .author_content {
  flex: 1;
}
.single .author_box .author_label {
  color: #1589ff;
  font-size: 0.8em;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.single .author_box .author_name {
  margin-top: 0.5em;
  margin-bottom: 0.5em;
  font-weight: 700;
  line-height: 1.4;
}
.single .author_box .author_text {
  font-size: 0.8em;
}
.single .author_box .btn_keireki {
  font-size: 0.8em;
  text-decoration: underline;
  padding-right: 1.75em;
  background: url(../../img/ico_outer.svg) no-repeat;
  background-position: center right;
  background-size: 17px;
  width: fit-content;
  margin-top: 1em;
}
.single .single_content {
  width: 840px;
  margin-left: auto;
  margin-right: auto;
  margin-top: 60px;
}
.single .single_content .single_head .date {
  color: #777;
  font-size: 14px;
}
.single .single_content .single_head .c_content_ttl {
  color: #333;
  font-weight: 900;
}
.single .single_content .single_ph {
  aspect-ratio: 15/8;
  overflow: hidden;
  margin-top: 20px;
  margin-left: auto;
  margin-right: auto;
}
.single .single_content .single_ph img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.single .single_content .single_body {
  margin-top: 20px;
}
.single .single_content .single_body p {
  line-height: 1.8;
}
.single .single_content .single_body h2 {
  margin-top: 48px;
  margin-bottom: 20px;
  padding: 10px 18px;
  background: #faf7f7;
  border-left: 5px solid #0059b3;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.4;
}
.single .single_content .single_body h3 {
  margin-top: 36px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid #0059b3;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.5;
  position: relative;
}
.single .single_content .single_body .wp-block-image img {
  width: 100%;
}

@media screen and (max-width: 680px) {
  .single .single_content {
    margin-top: 5vw;
    width: 88.2352941176vw;
  }
  .single .single_content .single_body h2 {
    font-size: 4.75vw;
  }
  .single .single_content .single_body h3 {
    font-size: 4vw;
  }
  .single .author_box {
    flex-direction: column;
    gap: 0em;
  }
  .single .author_box .author_icon {
    width: 45%;
    margin: 0.75em auto 0;
  }
  .single .author_box .author_content {
    display: contents;
  }
  .single .author_box .author_content .author_label {
    order: -1;
    text-align: center;
  }
  .single .author_box .author_content .author_name {
    text-align: center;
  }
}