.content {
	margin-top: 70px;
	margin-bottom: 81px;
}

.study {
	background-color: #ffffff;
}

.study .bottom {
	width: 1353px;
	margin: 0 auto;
	margin-top: 46px;
	margin-bottom: 81px;
	padding: 0 22px;
	padding-bottom: 59px;
	padding-top: 22px;
	background-color: #f7fbff;
	box-shadow: 0px 0px 7px 0px rgba(168, 168, 168, 0.22);
	border-radius: 10px;
	box-sizing: border-box;
}

/* 媒体查询 */
@media screen and (max-width:1600px) {
	.study .bottom {
		width: 1000px;
	}
	
	.study .bottom .left {
		width: calc(100% - 231px);
	}
	
	.study .bottom .left .item {
		width: 210px;
		margin-right: 30px;
	}
	
	.study .bottom .right {
		width: 231px;
	}
	
	.study .btn {
		margin-bottom: 0px;
	}
	
	.banner_middle {
		width: 231px !important;
		height: 464px !important;
	}
	
	.study .bottom .left .item {
		min-height: 225px;
	}
}

@media screen and (max-width:1366px) {
	
}

@media screen and (max-width:1200px) {
	
}


@media screen and (max-width:1024px) {
	
}