body {
    position: relative;
    padding: 0;
    margin: 0;
}

img {
    max-width: 100%;
    vertical-align: middle;
}

a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.6);
}
a:hover{
    color:#FFF
}
.nav {
    height:60px;
    background: none;
    display: flex;
    width: 80%;
    padding: 0 10%;
    position: absolute;
    top: 0;
    background: none;
    z-index: 99999;
}

.logo {
    width: 20%;
}

.nav-list {
    display: flex;
    height: 40px;
    padding-top: 10px;
    line-height: 40px;
}

.one-nav {
    list-style: none;
    padding: 0 15px;
    position: relative;
}

.one-nav:hover {
    color: #FFF;
}

.subs {
    position: absolute;
    list-style: none;
    padding-left: 0;
    margin-left: 15px;
    background: rgba(0, 0, 0, 0.4);
    left: -50%;
    top: 20px;
    height: 0;
    transform: translate(30%, 0);
    overflow: hidden;
    transition: all .5s;
}
.subs-li{
    text-align: center;
    padding: 0 10px;
    line-height: 30px;
}
.subs-li:hover{
    color: #FFF;
}
.one-nav:hover .subs {
    height: auto;
}

.menus{
    display: flex;
    flex-wrap: wrap;
    text-align: center;
    justify-content: center;
    width: 100%;

}
.one-navs{
    list-style: none;
    margin: 15px;
}
.one-navs:hover{
    color: #FFF;
}
.footer{
    background: rgb(13, 59, 112);
}
.center-logo{
    text-align: center;
}
.bq{
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    padding: 10px 0;
}
.contact{
    width: 360px;
    height: 80px;
    margin: 15px auto;
}
.contact p{
    color: rgba(255, 255, 255, 0.6);    
    font-size: 14px;
}



.mob-nav{
    display: none;
}



.logos {
    background: #FFF;
    height: 60px;
    padding-left: calc((100% - 1200px)/2);
}
.logos img{
    padding: 10px 0;
}
.navs-list{
    height: 30px;
    background: #ededed;
    padding: 0 calc((100% - 1200px)/2);
}
.uls{
    display: flex;
    line-height: 30px;
    list-style: none;
    margin: 0;
    padding-left: 0;
    
}
.lis{
    color: #4d4d4d;
    padding: 0 15px;
}
.li-cover{
    position: absolute;
    max-height: 0;
    overflow: hidden;
    transition: all .5s;
    width: 100%;
    left: 0;
    z-index: 999999;
    background: #FFF;
}
.subst{
    max-width: 1200px;
    list-style: none;
    padding: 0 calc((100% - 1200px)/2);
    display: flex;
    flex-wrap: wrap;
    padding-bottom: 30px;
    padding-top: 15px;
}
.lis:hover .li-cover{
   max-height: 650px;
}
.case-content{
    padding-bottom: 30px;
}
.list-li{
    height: auto;
    width: 23%;
    text-align: left;
    padding-left: 15px;
}
.lis:hover{
    background: #999;
    color: #FFF;
}
.lis:hover a{
    color: #FFF;
}
.lis a{
    color: #4d4d4d;
}
.li-titles{
    color: #4d4d4d;
    font-size: 18px;
}
.lis-sub{
    color: #004280;
    font-size: 14px;
}

.m-menu{
    display: none;
}
.mm-navs{
    display: none;
}
@media (max-width:900px){
    .logos{
        position: relative;
    }
    .navs-list{
        display: none;
    }
    .m-menu{
        display: block;
        position: absolute;
        top: 0;
        right: 10px;
        height: 30px;
        width: 30px;
        padding: 15px 10px;
    }
    .mm-navs{
        max-height: 0;
        width: 100%;
        background: #eee;
        overflow: hidden;
        list-style: none;
        display: block;
    }
    .mm-navs-active{
        max-height: 300px;
    }
    .mm-li{
        color: #4d4d4d;
        padding-left: 10px;
        line-height: 30px;
        border-bottom: 1px solid #bbb;
    }
}
@media(max-width:480px){
    .one-navs{
        margin: 10px;
    }
    .nav-list{
        display: none;
    }
    .mob-nav{
        display: block;
    }
    .mob-nav img{
        height: 40px;
    }
    .nav{
        padding: 0 5%;
    }
    img{
        pointer-events:none;
    }
    .logo{
        width: 80%;
        text-align: center;
    }
    
    .logo img{
        height: 40px;
    }
}