#header{
    min-width: 1180px;
    height: 350px;
    background: url("../images/nav.jpg") no-repeat top center;
    overflow: hidden;
    background-size: cover;
    padding: 0 10px;
}

.header{
    width: 1180px;
    margin: 0 auto;
    overflow: hidden;
    padding-top: 65px;
}

.batten{
    position: absolute;
    left: 0;
    width: 100%;
    background-color: rgba(0,0,0,.08);
}

.top{
    width: 1160px;
    margin: 0 auto;
    font-size: 16px;
    height: 65px;
    line-height: 65px;
    padding: 0 10px;
}

.logo{
    float: left;
}

.logo>img{
    vertical-align: middle;
}

.nav>ul{
    float: left;
}

.nav>ul:last-child{
    float: right;
}

.nav>ul li:first-child{
    margin-left: 86px;
}

.nav>ul li{
    display: inline-block;
    margin-left: 65px;
    color: #ffffff;
}

.nav>ul .login{
    margin-left: 30px;
}

.nav>ul li a:hover{
    color: #73c2fd;
}

.middle{
    text-align: center;
    padding-top: 67px;
}

#nav{
    min-width: 1180px;
    height: 60px;
    background-color: #fff;
    border-bottom: 1px solid #eee;
    padding: 0 10px;
}

.navbar{
    width: 100%;
    position: fixed;
    top: 0;
    z-index: 999;
}

.row{
    width: 1180px;
    margin: 0 auto;
}

.row>ul{
    display: inline-block;
    position: relative;
}

.row>ul:before{
    content: "";
    display: table;
}

.row>ul li{
    float: left;
    width: 100px;
    line-height: 60px;
    text-align: center;
    margin: 0 64px 0 0;
}

.row>ul li.change a{
    color: #0576dc;
}

.row>ul li a{
    font-size: 16px;
    color: #333;
    text-decoration: none;
}

.row>ul li a:hover{
    color: #2060c0;
}

.row>ul li.lines{
    position: absolute;
    height: 3px;
    background-color: #2f74d5;
    bottom: 0;

}

#main{
    min-width: 1180px;
    background-color: #f1f1f1;
    overflow: hidden;
    padding-top: 20px;
}

.main{
    width: 1180px;
    margin: 0 auto 44px;
}

ul.control{
    overflow: hidden;
}

ul.control li{
    float: left;
    width: 393px;
    height: 80px;
    line-height: 80px;
    background-color: #f6f6f6;
    text-align: center;
    cursor: pointer;
    border-bottom: 1px solid #f1f1f1;
}

ul.control li span{
    display: inline-block;
    font-size: 16px;
    color: #333;
}

ul.control li.change{
    background: url("../images/change.jpg") no-repeat;
}

span.exe{
    padding-left: 45px;
    background: url("../images/exe.png") no-repeat left center;
}

ul.control li.change span.exe{
    color: #fff;
    background: url("../images/exe_hover.png") no-repeat left center;
}

span.dll{
    padding-left: 45px;
    background: url("../images/dll.png") no-repeat left center;
}

ul.control li.change span.dll{
    color: #fff;
    background: url("../images/dll_hover.png") no-repeat left center;
}

span.sdk{
    padding-left: 55px;
    background: url("../images/sdk.png") no-repeat left center;
}

ul.control li.change span.sdk{
    color: #fff;
    background: url("../images/sdk_hover.png") no-repeat left center;
}

.tab2,.tab3{
    display: none;
}

.tab{
    background-color: #fff;
    padding: 30px 50px 144px;
}

.tab img{
    margin: 14px 0 33px;
}

.ability{
    margin-bottom: 13px;
    border-bottom: 1px solid #f1f1f1;
}

.ability span{
    display: inline-block;
    font-size: 24px;
    color: #333;
    line-height: 88px;
    padding-left: 60px;
    background: url("../images/features.png") no-repeat left center;
}

p.title{
    font-size: 16px;
    color: #0576dc;
    line-height: 46px;
}

p.cont{
    font-size: 14px;
    color: #888;
    line-height: 24px;
}

#footer{
    min-width: 1180px;
    background-color: #353a40;
    clear: both;
    padding: 0 10px;
}

.footer{
    width: 1180px;
    margin: 0 auto;
    color: #dedede;
    font-size: 12px;
    line-height: 70px;
}

.download{
    margin-left: 15px;
}

.right{
    float: right;
}