*{
    margin:0;
    padding:0;
}
html,body{
    max-width:1920px;
    width:100%;
    min-width:1200px;
    margin:0 auto;
    overflow-x:hidden;
    overflow-y: auto;
    font-family: Arial, Roboto, 'Droid Sans', 'Hiragino Sans GB', 'Microsoft YaHei', 'Simsun', STXihei, 'sans-serif';
}
.nav{
    height:114px;
    display:flex;
    display:-webkit-flex;
    align-items: center;
    background:url(../images/nav.png) no-repeat center top;
}
.nav .logo{
    width:30%;
    text-align:center;
}
.nav .logo img{
    display:inline-block;
    width:360px;
    height:auto;
}
.nav ul{
    width:70%;
    display:flex;
    display:-webkit-flex;
    justify-content: center;
}
.nav ul li{
    box-sizing:border-box;
    display:block;
    width:204px;
    height:70px;
    line-height: 70px;
    margin:0;
    text-align:center;
    cursor:pointer;

}
.nav ul li a:hover{
    border-bottom:3px solid #75ca68;
}
.nav ul li .act{
    border-bottom:3px solid #75ca68;
}


.content{
    background:url(../images/bg.png)  no-repeat center top;
    height:2008px;
}
ul{
    list-style: none;
}
a{
    text-decoration:none;
    color:#000000;
}
#goToTop {
    position: fixed;
    right: 20px;
    z-index: 9000;
    bottom: 30px;
}
#goToTop a {
    padding: 10px;
    display: inline-block;
    background: none repeat scroll 0 0 #19f3e8;
    border: 1px solid #CCCCCC;
    border-radius: 3px;
    -webkit-border-radius: 50px;
    color: #FF9966;
    font-size: 14px;
    text-decoration: none;
    text-shadow: 0 1px 0 #999;
    -webkit-text-shadow: 0 1px 0 #999;
}
::-webkit-scrollbar-track-piece {
    background-color:#e2f3f8;
    -webkit-border-radius: 2px;
    -moz-border-radius: 2px;
    border-radius: 2px;
}
::-webkit-scrollbar {
    width:0px;
}
::-webkit-scrollbar-thumb {
    background-color:#19b9c4;
    background-clip:padding-box;
    -webkit-border-radius: 2px;
    -moz-border-radius: 2px;
    border-radius: 2px;
}
::-webkit-scrollbar-thumb:hover {
    background-color:#5f96bb;
}
