@media screen and (min-width: 768px) {
    .nav_mobile {
        display: none;
    }

    .nav_pc {
        width: 100vw;
        overflow: hidden;
        height: 1.3rem;
        line-height: 1.3rem;
    }

    .nav_pc > div {
        float: left;
    }

    .nav_pc .logo {
        width: 25%;
        padding-left: 5%;
    }

    .nav_pc .logo img {
        height: 0.8rem;
    }

    .nav_pc .choose {
        width: 75%;
        padding-left: 25%;
        font-size: 0.27rem;
    }

    .nav_pc .choose a {
        cursor: pointer;
    }

    .nav_pc .choose .xx {
        color: gray;
        margin-right: 5%;
    }


    .nav_pc .en {
        color: black;
    }

    .nav_pc .cn {
        color: #73dedc;
    }

    .nav_pc .cn:hover {
        color: #73dedc;
    }

    .nav_pc .xx:hover {
        color: #73dedc;
        border-bottom: 2px solid #73dedc;
        padding-bottom: 10px;
        -webkit-transition: all 0.5s ;
        -moz-transition: all 0.5s ;
        -o-transition: all 0.5s ;
        transition: all 0.5s ;
        transform: scale(1.2, 1.2);
    }

    .nav_pc .choosen {
        color: #73dedc !important;
        border-bottom: 2px solid #73dedc;
        padding-bottom: 10px;
    }
}