.cases{
	margin:40px 0;
}
.cases .item .image{
	width: 100%;
	overflow: hidden;
	position: relative;
	text-align: center;
	border-radius: 15px;
	border: 1px solid #ebebeb;
	background-color: #ebebeb;
}
.cases .item .image img{
	width: 100%;
}

.cases .topic{
	margin-bottom: 50px;
	text-align: center;
}