* {
    margin: 0px;
    padding: 0px;
    font-family: "Microsoft Yahei", Helvetica, sans-serif, Lato;
    letter-spacing:1px;
    /* color: #303030; */
}

li {
    list-style: none;
}

a {
    text-decoration: none;
    color:#303030;
}

.nav {
    width: 100%;
    height: 90px;
}

.nav .nav-content {
    width: 86%;
    margin: 0 auto;
    height: 90px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navL img {
    width: 160px;
}

.navR {
    display: flex;
}
.navR div{
    margin-left: 50px;
    font-size: 20px;
}
.on{
    padding-bottom: 5px;
    border-bottom:4px solid #697dcc;
}

.foot{
    width: 100%;
    height: 240px;
    background: black;
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}