.topnav-content{
        width: 106.25rem;
        height: 9.375rem;
    }
    .topnav-content .logo{
        width: 12.11rem;
        height: 3.96rem;
    }
    .topnav-content .head-line{
        height: 2.69rem;
        border: 0.06rem solid #FFFFFF;
        margin-left: 1.13rem;
        margin-right: 0.57rem;
    }
    .topnav-content .navs
    {
      width: 67.5625rem;
      margin-left: 13.5025rem;
    }
    .topnav-content .nav-item-name
    {
      font-size: 1.63rem;
    }
    .topnav-content .tel-info
    {
      font-size: 1.63rem;
    }
    .topnav-content .tel-desc
    {
      font-size: 0.81rem;
    }

@media only screen and (max-width: 800px){
    .topnav{
         position: fixed;
        top: 0;
        z-index: 999;
    }
    .topnav-content{
        width: 100%;
        height: auto;
        background: #fff;
       
    }
    .topnav-content .logo{
        margin-left: 1rem;
        width: 80%;
        height: auto;
    }
    .topnav-content .head-line{
        height: 2.69rem;
        border: 0.06rem solid #FFFFFF;
        margin-left: 0rem;
    }
     .topnav-content .nav-item-name
    {
      font-size: 1rem;
    }
    .topnav-content .tel-info
    {
      font-size: 1rem;
    }
    .topnav-content .tel-desc
    {
      font-size: 0.5rem;
    }
}