/* sp */
@media screen and (max-width: 480px) {
	
	ul li.contents_list {
		margin-bottom: 10%;
	}
	
	ul li.contents_list .number {
		display: none;
	}
	
	ul li.contents_list .content_detail h2 {
		margin-bottom: 3%;
	}
	
	.img_concept img {
		width: 100%;
	}
	
}

/* pc */
@media screen and (min-width: 481px) {
	ul li.contents_list {
		overflow: hidden;
		margin-bottom: 60px;
	}
	
	ul li.contents_list .number,
	ul li.contents_list .content_detail {
		display: inline-block;
	}
	
	ul li.contents_list .number {
		float: left;
		font-size: 80px;
		width: 80px;
		color: #999999;
		font-weight: normal;
	}
	
	ul li.contents_list .content_detail {
		float: right;
		width: 700px;
	}
	
	ul li.contents_list .content_detail h2 {
		margin-bottom: 16px;
	}
	
	.img_concept {
		width: 600px;
		margin: 0 auto;
	}
	
	.img_concept img {
		width: 600px;
	}
}