.nav {
    background: #3d6fa2;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    border-bottom: #518db9 1px solid;
}
.nav li{
    height: .6rem;
    color:#fff;
    border-left: #518db9 1px solid;
}

.nav li:hover{
    background: #004c9c;
}

.nav li:first-child{
    border-left: none;
}
.nav li > a {
    display: block;
    width: 100%;
    height: 100%;
    font-size: .22rem;
    font-weight: bold;
    color:#fff;
    line-height: .6rem;
    cursor: pointer;
    padding-left: 70px;
    padding-right: 70px;
}

.nav li > a:hover{
    text-decoration: none;
}

.nav .home img{position: relative; top: -2px; left: -5px;}

/* 媒体查询 */
@media screen and (max-width: 1619px) and (min-width: 1500px){
    .nav li > a {
       padding-left: 50px;
       padding-right: 50px;
    }

}

@media screen and (max-width: 1499px) and (min-width: 1380px){
    .nav li > a {
       padding-left: 40px;
       padding-right: 40px;
    }

}

@media screen and (max-width: 1379px) and (min-width: 1080px){
    .nav li > a {
       padding-left: 30px;
       padding-right: 30px;
    }
}

@media screen and (max-width: 1079px) and (min-width: 0px){
    .nav li > a {
       padding-left: 18px;
       padding-right: 18px;
    }
}