@charset "utf-8";
#tb{
	display:grid;
	grid-template-columns:calc(25% - 60px/4) calc(25% - 60px/4) calc(25% - 60px/4) calc(25% - 60px/4);
	column-gap: 20px;
	row-gap:30px;
	width:auto;
	height:auto;
	margin:auto;
	overflow:hidden;
	margin-top:50px;
	margin-bottom:20px;
}
@media (max-width:767px){
	#tb{
		grid-template-columns:calc(50% - 10px/2) calc(50% - 10px/2);
		column-gap: 10px;
		row-gap:10px;
		margin: auto;
	}
}
.tb_tb{
	width:auto;
	height:auto;
	overflow:hidden;
	display:block;
	text-align: center;
}
a.tb_pic{
	width:auto;
	height:auto;
	padding-bottom:100%;
	overflow:hidden;
	display:block;
	margin:auto;
	position:relative;
	border:1px solid #ddd;
}
a.tb_name{
	width:auto;
	height:auto;
	display:block;
	margin:auto;
	overflow:hidden;
	font-size:1.2rem;
	padding-top: 10px;
}
.tb_miaoshu{
	display:-webkit-box;
	-webkit-box-orient:vertical;
	-webkit-line-clamp:3;
	text-overflow:ellipsis;
	overflow:hidden;
}