@charset "utf-8";
#tb{
	display:grid;
	grid-template-columns:calc(33.3% - 60px/3) calc(33.3% - 60px/3) auto;
	column-gap:30px;
	row-gap:30px;
	width:auto;
	height:auto;
	margin:auto;
}
@media (max-width:767px){
	#tb{
		grid-template-columns:calc(50% - 10px/2) calc(50% - 10px/2);
		column-gap:10px;
		row-gap:10px;
		margin-top: 20px;
	}
}
.tb_item{
	width:auto;
	height:auto;
	overflow:hidden;
	overflow:hidden;
	display:block;
	transition:all 0.4s;
}

.tb_tb{
	width:auto;
	height:auto;
	overflow:hidden;
	display:block;
	background-color: var(--back_color);
	position: relative;
}
.tb_tb:before{
	content: "";
	width:0px;
	height:100%;
	overflow:hidden;
	display:block;
	position: absolute;
	left: 0px;
	right: 0px;
	top:0px;
	bottom: 0px;
	background-color: var(--hover_color);
	transition: all 0.4s linear;
	z-index:0;
}
.tb_tb:hover::before{
	width: 100%;
}
.tb_tb:hover a.tb_name{
	color: #fff;
}
a.tb_pic{
	width:auto;
	height:auto;
	overflow:hidden;
	display:block;
	margin:auto;
	position:relative;
	padding-bottom:100%;
}
.tb_right{
	width:auto;
	height:auto;
	overflow:hidden;
	display:block;
	margin:auto;
	padding: 10px;
	position: relative;
	z-index: 1;
}
a.tb_name{
	width:auto;
	height:auto;
	display:-webkit-box;
	-webkit-box-orient:vertical;
	-webkit-line-clamp:2;
	text-overflow:ellispsis;
	margin:auto;
	overflow:hidden;
	margin-top: 15px;
	margin-bottom: 15px;
	text-align: center;
	
}