/* ---------------------------------------------------------------- 
 * books.css - 発刊書籍紹介
 * 追加日： 2026/07/27
 * ---------------------------------------------------------------- */
@import url("common.css");

/* [layout] */
.col2Main_L {
	min-width: 280px;
}
.col2Main_R {}

.rde_book_grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	grid-template-columns: 300px 1fr;
	gap: 34px;
}


/* [contents header] */
.books_header,
.book_header {
	position: relative;
	margin-bottom: 15px;
	padding-bottom: 15px;
}
.books_header:after {
	content: "";
	position: absolute;
	bottom: 0;
	left: 0;
	width: 100%;
	height: 1px;
	background: linear-gradient(184deg, #C6AE5C 0%, #A88817 90%);
}
.book_header:after {
	content: "";
	position: absolute;
	bottom: 0;
	left: 0;
	width: 100%;
	height: 1px;
	background: linear-gradient(184deg, #C6AE5C 0%, #A88817 90%);
}
.books_header .reason-more__title{
	font-size: 2em;
}

.detail-common .detail-common__title,
.book_header .detail-common__title a{
	margin: 0;
	font-family: "Shippori Mincho", serif;
	font-size: 1.25em;
	font-weight: 700;
	line-height: 1.6;
	/* letter-spacing: 0.03em; */
	letter-spacing: -0.04em;
	color: #000;
}


.rde_book_detail {
	display: block;
}
.rde_book_info {
	margin: 1.5rem 0;
}
.rde_book_info_acv {
	margin-bottom: 15px;
	padding-bottom: 5px;
	border-bottom: 1px dotted #999;
}

.rde_book_info_acv dt,
.rde_book_info dt{
	font-weight: bolder;
}
.rde_book_info_acv dl{
	display: inline-flex;
	flex-wrap: wrap;
}
.rde_book_info_acv dt {
  width: 7em;
}
.rde_book_info_acv dd {
  margin-left: 0;
  width: calc(100% - 7em );
}
.rde_book_info_acv dd,
.rde_book_info dd{
	margin-bottom: .813rem;
	padding-left: 1.5rem;
	line-height: 1.4;
	font-feature-settings: "palt" 1;
}
.rde_book_info_acv dd.name,
.rde_book_info_acv dd.link,
.rde_book_info dd.name,
.rde_book_info dd.link{
	margin: 0;
}
.rde_book_info_acv dd.name .defbtn_w
.rde_book_info .defbtn_w{
	margin-top: .75rem;
}

.books_content_more {
	padding-top: 1rem;
}

#Books .detail-common .detail-common__body {
	display: flex;
	flex-direction: row;
	align-items: stretch;
	gap: 40px;
	margin-bottom: 1px;
	padding: 30px 40px;
	border-radius: 3px;
	background-color: #fff;
	box-sizing: border-box;
}

.post-books__sidebar {
	max-width: 280px;
}

#Books .detail-common .detail-common__title {
	letter-spacing: -0.04em;
}
#Books .detail-common__text>h4 {
}
#Books .detail-common__text>ul>li {
	margin: 0 0 1rem 1.5rem;
	padding-left: 2rem;
	position: relative;
}
#Books .detail-common__text>ul>li:before {
	content: '';
	display: inline-block;
	width: 1rem;
	height: 1rem;
	position: absolute;
	background: #133470;
	top: 1rem;
	left: 0;
	margin-right: 0;
	/* margin-top: -2px; */
	/* vertical-align: middle; */
	border-radius: 50%;
	z-index: 1;
}
#Books .detail-common .detail-common__reference {
	display: flex;
	flex: 1;
	flex-direction: column;
	gap: 20px;
	/* min-width: 100%; */
	order: 3;
}

#Books .book-reference__list{
	list-style: none;
	margin: 0;
	padding: 0;
}
#Books .rde_book-reference__title {
	background: #DCE3FD;
	border-radius: 3px;
	margin: 1rem 0 0 0;
	padding: 2px .75rem;
}
#Books .book-reference__list>li{
	line-height: 1.3;
	padding: .75rem .75rem .75rem 2.5rem;
	font-feature-settings: "palt" 1;
	position: relative;
	border-bottom: 1px solid #E0E0E0;
}
#Books .book-reference__list>li:before{
	content: '';
	position: absolute;
	left: .75rem;
	top: calc(50% - 3px);
	display: block;
	width: 6px;
	height: 6px;
	background: #666;
	border-radius: 50%;
}
#Books .book-reference__list>li:nth-child(even){
	background: #EFEFEF;
}
#Books .book-reference__link {
	color: #337ab7;
	text-decoration: none;
}
#Books .book-reference__link:hover {
	 text-decoration: underline;
}

/* [reference（参考資料）] */
#Books.referenceBook .screen-reader-text,
#Books.referenceBook .pdfjs-fullscreen {
	display: none;
}

/* [media screen] */
/* --------------------
 *  450px
 *  769px
 * 1000px
 * 1200px
 * 1200px
 * -------------------- */
/* 〜449px */
@media screen and (max-width: 449px) {
	#Books .detail-common .detail-common__body {
		padding: 20px 10px;
	}
	.col2Main_L {
		min-width: 255px;
	}
	.col2Main_R {}
	
	.rde_book_info_acv dl{
		flex-direction: column;
	}
	.rde_book_info_acv dt,
	.rde_book_info_acv dd{
		width: 100%;
	}
}
/* 450px〜768px */
@media screen and (min-width: 450px) and (max-width: 768px) {
	.col2Main_L {
		min-width: 180px;
	}
	.col2Main_R {}
}
/* 769px〜999px */
@media screen and (min-width: 769px) and (max-width: 999px) {
	.col2Main_L {
		min-width: 180px;
	}
	.col2Main_R {}
}



/* 〜999px */
@media screen and (max-width: 999px){
	#Books .detail-common .detail-common__body {
		flex-direction: column;
	}
	#Books .detail-common__header {
		order: 1;
	}
	#Books .post-books__sidebar {
		order: 2;
	}
	.post-books__sidebar {
		display: flex;
		flex-direction: row;
		gap: 40px;
	}
	.post-books__sidebar {
		/* min-width: 300px; */
		max-width: 100%;
	}
}

/* 〜900px */
@media (max-width: 900px)
.rde_book_grid {
	grid-template-columns: 1fr;
	gap: 36px;
}

/* 〜649px */
@media screen and (max-width: 649px){
	.post-books__sidebar {
		flex-direction: column;
	}
	.post-books__sidebar {
		/* min-width: 300px; */
		max-width: 100%;
	}
}