@charset "utf-8";
#tb{
	margin:auto;
	display:grid;
	grid-template-columns: calc(33.3% - 40px/3 ) calc(33.3% - 40px/3 ) auto;
	row-gap: 20px;
	column-gap: 20px;
	width:auto;
	height:auto;
	overflow:hidden;
	font-size:0px;
}
@media (max-width:767px){
	#tb{
		grid-template-columns: calc(50% - 10px/2) calc(50% - 10px/2);
		row-gap:10px;
		column-gap:10px;
	}
}
.tb_tb{
	display:block;
	overflow:hidden;
	width:auto;
	height:auto;
	background-color:#fff;
	text-align:center;
	position: relative;
}

.tb_pic{
	display:block;
	overflow:hidden;
	margin:auto;
	width:auto;
	height:auto;
	padding-bottom: 100%;
	background-position:center;
	background-repeat:no-repeat;
	transition:all 0.4s;
	background-size:cover;
}
.tb_name{
	display:block;
	overflow:hidden;
	margin:auto;
	width:auto;
	height:auto;
	text-align:center;
	font-size:14px;
	padding-bottom:20px;
}
.tb_class_name{
	display:block;
	overflow:hidden;
	margin:auto;
	width:auto;
	height:auto;
	text-align:center;
	font-size:12px;
	color:#666;
}
.tb_tbody{
	display:block;
	overflow:hidden;
	margin:auto;
	width:auto;
	height:auto;
	padding:25px;
}
.tb_miaoshu{
	display:block;
	overflow:hidden;
	margin:auto;
	width:auto;
	height:auto;
	text-align:left;
	font-size:15px;
	line-height:150%;
	color:#999;
}
.tb_tb:hover>.tb_modal{transform:scale(1,1);}
.tb_modal{
	display:flex;
	display: -webkit-flex;
	justify-content: center;
	align-items: center;
	overflow:hidden;
	margin:auto;
	width:0px;
	height:0px;
	position:absolute;
	left:0px;
	right:0px;
	top:0px;
	bottom:0px;
	background-color:#ccab3e88;
	transition:all 0.4s;
	transform: scale(0,0);
}
.tb_modal:before{
	display:block;
	overflow:hidden;
	margin:auto;
	width:40px;
	height:40px;
	line-height:40px;
	position:absolute;
	left:0px;
	right:0px;
	top:0px;
	bottom:0px;
	font-size:42px;
	color:#fff;
	content:"+";
	font-family:Arial, Helvetica, sans-serif;
	font-weight:100;
}