.header-top-nav{
    background: #0a0a0a;
    width: 100%;    
    height: 40px;
}
.header-top-nav .top{
    background: #0a0a0a;
    color: #fff;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.service{
    color: #fff;
}
.nav{
    width: 100%;    
    height: 90px;
    display: flex;
    align-items: center;
    background: #fff !important;   
}
.wrapper{
    width: 1200px; 
    margin: 0 auto; 
    display: flex;
    /* align-items: center; */
    justify-content: space-between;
}
.navIn { 
    width: auto;
    height: 45px;
    margin: 0; 
}
.nav .navIn .nav_ul { 
    color: #614525; 
}
.nav .navIn .nav_ul li { 
    float: left; 
    cursor: pointer;
}
.nav .navIn .nav_ul li>a {
    font-size:20px;
    color: #614525; 
    width: 145px; 
    text-align: center; 
    display: inline-block; 
    line-height: 45px;
    border-right: none;
}
.nav .navIn .nav_ul li a.on{
    background: url(../../book_images/education/button.png) no-repeat; 
    background-size: contain;
    background-position: center;
    color: #fff;
}
.nav .navIn .nav_ul li a:hover { 
    background: url(../../book_images/education/button.png) no-repeat; 
    background-size: 100% 100%;
    background-position: center;
    color: #fff;
}
.nav .navIn .nav_ul .person_center>ul{
    background-color: transparent !important;
    width: 145px !important;
}
.nav .navIn .nav_ul .person_center>ul>li>a{
    display: block;
    width: 100%;
    line-height: 34px;
    font-size: 16px;
}
.nav .navIn .nav_ul li.person_center>ul>li{
    float: none;
}