.header {
    width: 100%;
    font-family: "思源黑体 CN Regular";
}

li {
    list-style-type: none;
}

a {
    text-decoration: none;
    color: #000;

}

ul {
    margin: 0;
    padding: 0;
}

@media (min-width: 1500px ) {
    .headercontains {
        width: 1200px;
        height: 120px;
        margin: 0 auto;
    }
}




@media screen and (max-width: 1500px){
    .headercontains .nav {
        float: left;
        width: 45%;
        height: 100%;
        margin-left: 10%;
    }
    .headercontains .nav ul li {
        height: 100%;
        width: 15%;
        line-height: 120px;
        text-align: center;
        float: left;
    }
    .headercontains .logo {
        margin-left: 10%;
        float: left;
        padding: 25px 0;
    }
}
@media screen and (min-width: 1500px){
    .headercontains .nav {
        float: left;
        width: 55%;
        height: 100%;
        margin-left: 10%;
    }
    .headercontains .nav ul li {
        height: 100%;
        width: 20%;
        line-height: 120px;
        text-align: center;
        float: left;
    }
    .headercontains .logo {
        float: left;
        padding: 25px 0;
    }
}

.headercontains .nav ul li:hover {
    background: #0669cf;
}
.headercontains .nav ul a:hover{
    color: #fff;
}
.headercontains .lang a{
    line-height: 120px;
    padding: 5px 20px;
}