*{
    margin: 0;
    padding: 0;
    list-style: none;
}

a{
    text-decoration:none;
}
.header{
    width: 1903px;
    height: 88px;
    /* background-color: rgba(255, 255, 255, 0.8); */
    margin-left: 0;
    /* box-shadow: 2px 1px 5px #F6F6F6; */
}
.top-logo{
    position: absolute;
    line-height: 100px;
    left: 15%;
    top: 20px;
}
.top-logo img{
    
}
.top-navigation{
    position: absolute;
    line-height: 88px;
    left: 50%;
}
.top-navigation li{
    position: relative;
    float: left;
    font-size: 16px;
    padding-left: 66px;
}
.top-title{
    color: #fff;
}
.top-title-dark{
    color: #000;
}
/* .top-navigation li:last-child a{
    padding-left: 26px;
    padding-right: 26px;
    padding-top: 10px;
    padding-bottom: 10px;
    height: 41px;
    border: 1px solid #444444;
    border-radius: 21px;
} */
.top-navigation li a:hover{
    color: #007bdd;
    border-color: #007bdd;
}
/* .top-navigation li:last-child a:hover{
    color: #fff;
    border-color: rgba(0, 0, 0, 0);
    background-color: #0188fb;
} */
/* 变色 */
.selection{
    color: #007bdd;
}
.main{
    width: 1340px;
    height: 100%;
    margin-left: 15%;
    margin-right: 15%;
    position: relative;
}
.bbbr{
    height: 10px;
    width: 100%;
}