/* @import url("/corp/csr/common/css/common.css"); */

.backnumber_index .gallery {
	padding: 0;
}
.backnumber_index ul li > ul {
	margin-bottom: 0;
	padding-left: 22px;
}

.backnumber_index ul li > ol {
	padding-left: 44px;
}

.backnumber_index ul li > ol li {
	list-style: decimal;
}

.csr .backnumber_index .listDot-nest{
	font-size:0.9em;
}

.csr .backnumber_index .listDot-nest li{
	list-style: circle;
	margin-left:0;
}

.back-cover {
	float: left;

	margin-top: 22px;
	width: 30%;
}

.back-cover img {
	width: 100%;
	height: auto;

	border: 1px solid #d3d3d4;
}

.back-body {
	overflow: hidden;

	margin-left: 30%;
	padding-left: 33px;
}


@media screen and (max-width: 768px) {
	.back-cover {
		float: none;

		margin: 0 auto;
		width: auto;
		max-width: 320px;
	}
	.back-body {
		margin-left: 0;
		padding-left: 0;
	}
}



.backnumber_title {
	margin-top: 110px;
	margin-bottom: 22px;
	padding-top: 10px;
	padding-bottom: 10px;

	border-bottom: #d3d3d4 solid 1px;

	font-size: 150%;
	font-weight: bold;
}


.accordion {
	margin-bottom: 22px;
}

.accordion_body {
	padding-top: 1px;
}

.input_html h2 {
	margin-bottom: 0;
}


.door_accordion__head {
	cursor: pointer;

	position: relative;

	display: block;

	width: 100%;
}

.door_accordion__btn {
	position: absolute;
	top: 50%;
	right: 20px;

	width: 20px;
	height: 20px;

	background: url(../img/arrow_accordion.png) center no-repeat;
	background-size: contain;

	transition: .3s;
	transform: translateY(-50%);
}

.door_accordion.is-open .door_accordion__btn {
	transform: translateY(-50%) rotate(-180deg);
}


.door_accordion__wrap {
	overflow: hidden;

	width: 100%;
	height: 0;
}