.cassdong{
	width: 343px;
	height: 371px;
	float: left;
	margin-right: 70px;
	margin-bottom: 30px;
	position: relative;
}
.cassdong:nth-child(3n){
	margin-right: 0px;
}
.cassdong a img{
	width: 354px;
}
.sbb{
	background: #f8f8f8;
	padding-top: 15px;
	padding-bottom: 15px;
	height: auto;
	padding: 36px 27px;
}
.sbb .title{
	color: #000;
	font-size: 20px;
	font-weight: bold;
}
.sbb .hongxian{
	width: 13px;
	height: 5px;
	background-color: #e60012;
	margin-top: 10px;
}
.sbb .desc{
	color: #676767;
	margin-top: 10px;
	line-height: 24px;
}
.cassdong a:hover .sbb{
	background: none;
}
.cassdong a:hover  .sbb .hongxian{
	background-color: #e60012;
}
.cassdong a:hover  .sbb .title,.cassdong a:hover  .sbb .desc{
	color: #333;
}
.jin {
    display: none;
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
	text-align: center;
    background: rgba(0,0,0,0.3);
}
.cassdong:hover .jin{display: block;}
.cassdong>a>div:hover{box-shadow: 0px 3px 5px rgba(138,138,138,0.5);}
@media  (max-width:767px) {
	.cassdong{
		width: 100%;
		margin-right:0;
	}
	.cassdong a  img{
		width: 100%;
		max-width:100%;
		height:auto;
	}
}