.rongyu {
	width: 100%;
	padding-top: 100px;
	padding-bottom: 100px;
}

.zhengshu {
	display: flex;
	justify-content: space-between;
	flex-wrap: wrap;
}

.zs {
	width: 321px;
	height: 455px;
	margin-bottom: 60px;
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	transition: all 0.3s;
}

.zs img {
	width: 100%;
	height: 100%;
	object-fit: contain;
}
.zs:hover{
	box-shadow: 0 2px 21px 2px rgb(0 0 0/0.4);
}
.zs1 {
	width: 321px;
}
@media screen and (max-width:1400px) {
	.zs{
		width:24%;
		height: auto;
	}
	.zs img{
		width: 100%;
		height: auto;
		object-fit: initial;
	}
}
@media screen and (max-width:768px) {
	.zs{
		width:48%;		
	}
	.rongyu {
	    padding-top: 35px;
	}
}