/* 関連書籍 */

div.related-book-sp.block-header.sp {
  margin: 30px 0px 10px 0px;
}
.block-header.pc.related-book-header {
  margin-top: 40px;
}
.related-book {
  flex-wrap: wrap;
  gap: 20px;
  grid-template-columns: repeat(2, 1fr);
  display: grid;
}
.related-book.related-book-pc {
  padding-bottom: 40px;
}
.related-book.related-book-sp {
  grid-template-columns: none;
  padding: 5px 16px 16px;
}
.related-book>div:not(.book-btn) {
  padding: 15px;
  border: 1px solid #ddd;
}
.related-book .book-more-btn {
  padding: 15px;
}
.related-book-sp>div {
  width: 100%;
}
.related-book a:hover {
  opacity: .7;
}
.related-book .book-btn {
  width: calc(200% + 20px);
  cursor: pointer;
  border: solid 2px #AEAEAE;
  color: #AEAEAE;
  text-align: center;
  font-size: 16px;
  max-height: 60px;
  min-height: 0px !important;
}
.related-book-sp .book-btn {
  width: 100%;
}
.related-book .book-btn button {
  background: none;
  border: none;
  color: #AEAEAE;
  width: 100%;
}
.related-book .book-btn button:after {
  display: block;
  content: "";
  width: 8px;
  height: 8px;
  margin: 2px auto 0;
  position: relative;
  top: 0px;
  border-bottom: solid 2px #AEAEAE;
  border-right: solid 2px #AEAEAE;
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
}
.related-book .book-btn:hover button {
  cursor: pointer;
  color: #f83e3f;
}
.related-book .book-btn:hover button:after {
  border-color: #f83e3f;
}
.related-book .hide-book {
  display: none !important;
}
.related-book .flex-side {
  height: 100%;
}
.related-book .book-image-side {
  width: 30%;
  padding: 0px 10px 0px 0px;
}
.related-book .book-text-side {
  width: 70%;
  position: relative;
  display: flex;
  flex-flow: column;
  justify-content: space-between;
  font-size: 14px;
}
.related-book-sp.related-book .book-text-side {
  font-size: 12px;
}
.related-book p.book-title {
  padding: 0px 0px 10px 0px;
}
.related-book .book-cover .title-link {
  color: #2379ca;
  text-decoration: none;
  padding-bottom: 0.05em;
  word-break: break-all;
  font-size: 16px;
}
.related-book-sp.related-book .book-cover .title-link {
  font-size: 14px;
}
.related-book-pc.related-book .book-text-side p.release.default,
.related-book-pc.related-book .book-text-side p.publisher.default {
  margin-top: 8px;
}
.related-book-sp.related-book .book-text-side p.release.default,
.related-book-sp.related-book .book-text-side p.publisher.default {
  margin-top: 4px;
}
.related-book .book-cover .link-side {
  overflow: hidden;
  text-align: center;
  width: 100%;
  margin-top: 8px;
}
.related-book .book-cover .link-side .buy {
  padding: 12px 0;
  border-bottom: none;
  text-align: center;
  font-size: 12px;
  font-size: 1.2rem;
  color: #fff;
}
.related-book .book-cover .link-side .buy.amazon {
  background-color: #ea8a02;
  display: inline-block;
  border-radius: 5px;
  width: 100%;
}
.related-book .book-cover .link-side .buy.amazon::before {
  content: "";
  width: 18px;
  height: 18px;
  margin-right: 5px;
  display: inline-block;
  background: url(/common/images/bunshun/v1/article/book-cover/cart-transfer.png) no-repeat;
  background-size: 100%;
  vertical-align: middle;
}