*{
    margin: 0;
    padding: 0;
}
ul li{
    list-style: none;
}
a{
    text-decoration: none;
    display: block;
}
body{
    background: #f2f2f2;
    overflow-x: hidden;
    overflow-y: auto;
}
html body{
    height: 100%;
}
.top{ 
    background-color: #fff;
    height: 30px;
}
.top span{
    display: block;
    width: 1200px;
    height: 30px;
    margin: 0 auto;
    line-height: 30px;
    font-size: 14px;
    color: #353535;
}
.log{
    width: 1200px;
    height: 100px;
    margin: 80px auto;
    text-align: center;
    line-height: 100px;
}
.log img{
    width: 100px;
}
.log span{
    display: block;
    margin-bottom: 30px;
    color: #353535;
}
.links{
    margin: 10px auto;
    width: 1200px;
    height: 600px;
}
.links .link{
    width: 190px;
    height: 50px;
    margin: 5px;
    background-color: #fff;
    border-radius: 5px;
    float: left;
    line-height: 0px;
    font-size: 14px;
    text-align: center;
    overflow: hidden;
}
.links .link a{
    display: block;
    width: 190px;
    height: 40px;
    background-color: #fff;
    line-height: 40px;
    font-size: 14px;
    color: #353535;
}
.links .link a:hover{
    background-color: #009688;
    color: #fff;
}
.foot{
    height: 30px;
    background-color: #fff;
}
.foot .foot_in{
    width: 1200px;
    height: 30px;
    text-align: center;
    font-size: 14px;
    color: #353535;
    line-height: 30px;
}
.nav{
    width: 1200px;
    height: 30px;
    margin: 5px auto;
}
.nav_select{
    width: 100px;
    height: 30px;
    border-radius: 2px;
    background: url("img/nav2.png") no-repeat;
    margin-bottom: 5px;
}
.nav_select:hover{
    cursor: pointer;
    background: url("img/nav3.png") no-repeat;
}
.nav .nav_in{
    position: relative;
    width: 100px;
    height: 222px;
    display: none;
    z-index: 10;
}
.nav .nav_in ul{
    display: block;
    width: 100px;
}
.nav .nav_in ul li{
    display: block;
    width: 100px;
    height: 30px;
    border-radius: 2px;
    background-color: #009688;
    font-size: 14px;
    color: #353535;
    margin-top: 2px;
    text-align: center;
    line-height: 30px;
}
.nav .nav_in ul li:hover{
    background-color: #fff;
}
.nav .nav_in ul li a{
    display: inline-block;
    width: 100px;
    height: 30px;
    color: #fff;
}

.nav .nav_in ul li a:hover{
    display: inline-block;
    width: 100px;
    height: 30px;
    color: #353535;
}