@charset "utf-8";
.c_tb{
	width:auto;
	height:auto;
	overflow:hidden;
	display:block;
	margin:auto;	
}
.c_thead{
	width:auto;
	height:auto;
	overflow:hidden;
	display:grid;
	grid-template-columns:auto auto;
	justify-content:space-between;
	align-items:center;
	margin:auto;
	border-bottom:1px dotted #ddd;
	padding:10px;
	font-weight:bold;
	font-size:1.2rem;
	background-image:linear-gradient(0deg,#fff,#f5f5f5);
}
.c_tbody{
	width:auto;
	height:auto;
	overflow:hidden;
	display:none;
	grid-template-columns:auto auto;
	row-gap:10px;
	column-gap:10px;
	margin:auto;
	padding:10px;
}
@media (max-width:480px){
	.c_tbody{display:none;}
}
a.c_name{
	width:auto;
	height:auto;
	overflow:hidden;
	display:flex;
	display:-webkit-flex;
	align-items:center;
}
a.c_name:before{
	width:15px;
	height:15px;
	line-height:15px;
	overflow:hidden;
	display:block;
	border:1px solid #333;
	text-align:center;
	margin-right:5px;
	content:"";
	font-size:14px;
}
a.c_check:before{
	width:15px;
	height:15px;
	line-height:15px;
	overflow:hidden;
	display:block;
	border:1px solid #333;
	text-align:center;
	margin-right:5px;
	content:"v";
	font-size:14px;
}
.c_fold{
	width:20px;
	height:20px;
	line-height:20px;
	text-align:center;
	overflow:hidden;
	display:block;
	border:1px solid #ddd;
	border-radius:50%;
	cursor:pointer;
}
.c_fold:hover{
	background-color:#000;
	color:#fff;
}
#tb{
	display:grid;
	grid-template-columns:calc(25% - (90px/4)) calc(25% - (90px/4)) calc(25% - (90px/4)) calc(25% - (90px/4));
	column-gap:30px;
	row-gap:30px;
	width:100%;
	height:auto;
	margin:auto;
	overflow:hidden;
	box-sizing:border-box;
	margin-top:30px;
	margin-bottom:30px;
}
@media (max-width:767px)
{
	#tb{
		grid-template-columns:calc(33.3% - (40px/3)) calc(33.3% - (40px/3)) calc(33.3% - (40px/3));
		row-gap:20px;
		column-gap:20px;
	}
}
@media (max-width:480px)
{
	#tb{
		grid-template-columns:calc(50% - (10px/2)) calc(50% - (10px/2));
		row-gap:10px;
		column-gap:10px;
	}
}
.tb_item{
	width:100%;
	height:auto;
	margin:auto;
	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;
	overflow:hidden;
	display:block;
	margin:auto;
	position:relative;
	border:1px solid #ddd;
	padding-bottom:100%;
}
a.tb_name{
	width:auto;
	height:auto;
	display:block;
	margin:auto;
	overflow:hidden;
	text-align:center;
	padding:5px;
	font-size:14px;
}