*{
    margin: 0;
    padding: 0;
}
.indexlunbo{ width:100%}
body{
    min-width: 1200px;
}
.w{
    width: 1200px;
    margin: 0 auto;
}
.w:after{
    clear: both;
    display: block;
    content: '';
}
.nav{
    height: 90px;
    padding-top:30px ;
}
.logo{
    display: inline-block;
    float: left;;
}
.nav-bar{
    display: inline-block;
    float: right;
}
.nav-bar .nav-site{
    height: 100%;
	width:130px; text-align:center;
    float: left;
}
.nav-bar .nav-site a{
    display: inline-block;
    text-decoration: none;
    color: #333;
    font-size: 18px;
    height: 40px;

}
.nav-bar .nav-site a span{
    box-sizing: border-box;
    padding: 0 5px;
    display: table-cell;
    height: 40px;
    vertical-align: middle;
}
.nav-bar .nav-site>a{
    height: 100%;
    line-height: 60px;
}
.active{
    border-bottom: 2px solid #05467f;
}
.nav-bar .active>a{
    color: #05467f;
}

.banner{
    width: 100%;
    height: 600px;
}
.nav-site{
    position: relative;
}
.dropdown-menu{
    display: none;
    z-index: 999;
    position: absolute;
    left: 0;
    top: 100%;
    background-color: #fff;
    width: 130px;
    text-align: center;
}
.dropdown-menu ul{
    width: 100%;
}
.dropdown-menu li {
    list-style: none;
    width: 100%;
}
.dropdown-menu li:hover{
    background-color: #ccc;
}
.dropdown-menu li a{
    font-size: 16px !important;
}
.nav-site:hover .dropdown-menu{
    display: block;
}