html{
	width: 100%;
	height: 100%;
}
body {
	width: 100%;
	height: 100%;
	margin: 0;
    background-color: #017FFF;
}

.main{
	min-width: 1100px;
	height: 100%;
	text-align: center;
	position: relative;
	display: flex;
	flex-direction: column;
	justify-content: space-between;
}

.header{
	flex: 1;
	padding-top: 130px;
	min-height: 670px;
}

.footer{
	margin-bottom: 20px;
}

.logo {
    width: 60px;
    height: 60px;
    position: fixed;
    top: 48px;
    left: 61px;
}

.title {
    font-size: 50px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #FFFFFF;
}

.titleson {
    font-size: 24px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #FFFFFF;
    margin-top: 28px;
}

.content {
    margin-top: 100px;
    display: flex;
    justify-content: center;
}

.content_item {
    width: 360px;
    height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-sizing: border-box;
    padding: 0 28px;
    padding-top: 40px;
    text-decoration: none;
}



.content_item:hover {
    background: #2290FF;
    border: 1px solid #AECBFF;
    cursor: pointer;
}

.content_item:hover .tlImg {
    display: block;
}

.item_img {
    width: 150px;
    height: 150px;
}

.item_name {
    font-size: 20px;
    font-family: Source Han Sans CN;
    font-weight: 500;
    color: #FFFFFF;
    margin-top: 40px;
    line-height: 30px;
}

.down {
	width: 150px;
	height: 150px;
	border-radius: 50%;
	background-color: #fff;
	display: flex;
	align-items: center;
	justify-content: space-around;
}

.item_des {
    font-size: 18px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #FFFFFF;
    line-height: 24px;
    margin-top: 21px;
}


.tlImg {
    width: 24px;
    height: 24px;
    margin-top: 20px;
    display: none;
}

.linkflow {
    font-size: 14px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #B7D0FF;
    line-height: 24px;
	text-decoration: none;
}