@charset "utf-8";
#tb{
	display:grid;
	grid-template-columns:calc(33.3% - (40px/3)) calc(33.3% - (40px/3)) calc(33.3% - (40px/3));
	column-gap:20px;
	row-gap:20px;
	width:auto;
	height:auto;
	margin:auto;
	overflow:hidden;
}
@media (max-width:767px){
	#tb{
		grid-template-columns:calc(50% - (10px/2)) calc(50% - (10px/2));
		column-gap:10px;
		row-gap:10px;
		padding:10px;
	}
}
.tb_item{
	width:auto;
	height:auto;
	overflow:hidden;
	overflow:hidden;
	display:block;
}
.tb_tb{
	width:auto;
	height:auto;
	overflow:hidden;
	display:block;
	margin:auto;
	transition:all 0.4s;
}

a.tb_pic{
	width:auto;
	height:auto;
	padding-bottom:75%;
	overflow:hidden;
	display:block;
	margin:auto;
	position:relative;
	background-size:cover;
	background-color:#f5f5f5;
}
a.tb_name{
	width:auto;
	height:auto;
	display:block;
	margin:auto;
	overflow:hidden;
	text-align:center;
	padding:10px;
	font-size:1.2rem;
}
.tb_miaoshu{
	width:auto;
	height:auto;
	display:block;
	margin:auto;
	overflow:hidden;
	word-break: break-all;
    text-overflow: ellipsis;
    display: -webkit-box; 
    -webkit-box-orient: vertical; 
    -webkit-line-clamp: 2; 
    overflow: hidden; 
	color:#666;
}