@charset "utf-8";
#tb{
	margin:auto;
	display:grid;
	grid-template-columns:calc(50% - (30px/2)) calc(50% - (30px/2));
	column-gap:30px;
	row-gap:30px;
	width:auto;
	height:auto;
	overflow:hidden;
}
@media (max-width:767px){
	#tb{
		grid-template-columns:calc(50% - (20px/2)) calc(50% - (20px/2));
		column-gap:20px;
		row-gap:20px;
	}
}
@media (max-width:480px){
	#tb{
		grid-template-columns:auto;
		padding:20px;
	}
}
.tb_item{
	display:block;
	width:auto;
	height:auto;
	overflow:hidden;
	background-color:#fff;
	text-align:center;
}
.tb_tb{
	display:block;
	width:auto;
	height:auto;
	overflow:hidden;
	padding:20px;
}
.tb_item:hover .tb_modal{width:100%;height:100%;transition:all 0.4s;}
.tb_modal{
	display:block;
	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;
}
.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;
}
a.tb_pic{
	display:block;
	overflow:hidden;
	margin:auto;
	width:auto;
	height:auto;
	padding-bottom:75%;
	background-position:top center;
	background-repeat:no-repeat;
	transition:all 0.4s;
	background-size:cover;
	position:relative;
}
a.tb_name{
	display:block;
	overflow:hidden;
	margin:auto;
	width:auto;
	height:auto;
	text-align:left;
	font-size:22px;
	padding-bottom:20px;
}
.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;
}
@media (min-width:767px) and (max-width:1000px)
{
	.tb_item{width:33.3%;transition:all 0.4s;}
	.tb_tb{margin:10px;}
	a.tb_pic{
		height:180px;
	}
}
@media (max-width:767px)
{
	.tb_item{width:50%;transition:all 0.4s;}
}
@media (max-width:480px)
{

	.tb_item{
		width:100%;
		transition:all 0.4s;
	}
	
}