.logo{ width: 20rem; margin:1rem 0 0 2rem;height: 100%;} 

.self_list{ display:none; position: relative;z-index: 99; }

.Adult_list{ display:none; position: relative;z-index: 99; }

.Longrange_list{ display:none; position: relative;z-index: 99; }

.self:hover .self_list{display:block;}

.Adult_top:hover .Adult_list{display:block;}

.Longrange_top:hover .Longrange_list{display:block;}

.title{
    width: 70%;height: 6rem; position: relative;
}
.top{
  width: 100%;height: 6rem;cursor: pointer;
}
.title_div .likea{
    color: #6b6b6b;
    font-size: 1.2rem;
    /* font-weight: bold; */
    height: 100%;
    width: 17%;
    line-height: 6rem;
    text-align: center;
}
.title_div .likea:hover{
    background:#2d5183;color: #fff;
}
.title_div{
    width: 1000px;height: 100%;
}
.menu_top_list_div{   
    width: 100%;
    height: 2rem;background:#fff ;border-bottom:1px solid #d8d8d8;
    text-align: center;line-height: 2rem;color: #6b6b6b;
}
.menu_top_list_div:hover{
  border-left:0.2rem solid #2d5183;
}
.top_arrow{
  width: 2rem;height: 2rem;
}
.self_list::before,.Longrange_list::before,.Adult_list::before{
    content: '';
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 16px solid #fff;
    z-index: 99;
    position: absolute;
    right: 0.2rem;
    top: -0.2rem;
}
.top{
    background: #fff;
}