.nav_xs{
    position: absolute;
    top: 0;
    z-index: 20;
}
.index_logo_xs img{
    width: 71%;
    margin-top: 15px;
    margin-left: 8px;
}
.index_ul_xs img{
    width: 13%;
    margin-top: 15px;
    margin-left: 80%;
}
.index_menu_xs{
    width: 80%;
    height: 100%;
    background-color: white;
    position: fixed;
    top: 0;
    left: 20%;
    /*font-size: 38px;*/
    text-align: center;
    z-index: 10000;
    overflow-x: hidden;
    display: none;
}
.index_menu_xs_title{
    padding: 15px;
    border-bottom: 1px solid rgb( 210, 210, 210 );
}
.index_menu_xs_search{
    padding: 15px;
}
.index_menu_xs_search input{
    padding: 15px;
    border-radius: 50px;
    border: 0;
    background-color: #F2F2F2;
    font-size: 16px;
}
.index_menu_xs ul{
    text-align: left;
    padding-left: 30px;
}
.index_menu_xs ul li{
    border-bottom: 1px solid #E2E0DC;
    overflow: hidden;
    line-height: 60px;
    min-height: 60px;
    color: black;
}
.index_menu_xs ul li a{
    color: black;
    display: inline-block;
    width: 100%;
}
.index_menu_xs ul li .menu_so a{
    color: #999999;
}
.index_menu_xs ul li span{
    font-size: 15px;
    float: right;
    padding: 0 23px;
    display: inline-block;
    transform:rotate(-90deg);
}
.index_menu_xs ul li .menu_so{
    padding-left: 25px;
    /*font-size: 36px;*/
    line-height: 36px;
    color: #999999;
    display: none;
}