.wapper {
    width: 100%;
    max-width: 1920px;
    min-width: 1200px;
    margin: 0 auto;
    background-color: #ffffff;
}
.w1200{
    width:1200px;
    margin: 0 auto;
}
/*app*/
.app_01{
    background: url("../images/app_01.jpg" ) top center no-repeat;
    width:100% ;
    height: 540px;
    display: block;
    text-decoration: none;
}
.app_01_1 {
    color:#fff;
    padding-top:400px;
}
.app_01_1 p{
    line-height: 30px;
}
.app_02{
    background: url("../images/app_02.jpg" ) top center no-repeat;
    width:100% ;
    height: 540px;
    display: block;
}
.app_02 .app_02_1{
    background: url("../images/app_02_1.png" )  center 0 no-repeat;
    width:220px ;
    height: 60px;
    display: block;
    margin-bottom: 20px;


}
.app_02 .app_02_1:hover{
    background: url("../images/app_02_1.png" )  center -60px no-repeat;

}
.app_02 .app_02_2{
    background: url("../images/app_02_2.png" )  center 0 no-repeat;
    width:220px ;
    height: 60px;
    display: block;
}
.app_02 .app_02_2:hover{
    background: url("../images/app_02_2.png" )  center -60px no-repeat;

}
.app_03{
    background: url("../images/app_03.jpg" ) top center no-repeat;
    width:100% ;
    height: 453px;
    display: block;
}
.app_04{
    width: 1200px;
    margin: 70px auto 30;
    padding-bottom: 30px;
    height:430px;
}
.slideBox {
    overflow: hidden;
    position: relative;
    float: right;
    height:430px;
}

.slideBox .hd {
    position: absolute;
    left: 0;
    right: 0;
    margin: 0 auto;
    bottom:0px;
    z-index: 50;
    width: 90px;
}

.slideBox .hd ul li {
    float: left;
    width: 15px;
    height: 15px;
    background: #c4c3c3;
    border-radius: 50%;
    display: block;
    margin-left: 15px;
}

.slideBox .hd ul li.on {
    background: #2791dd;
}
.app_05{
    background: url("../images/app_05.jpg" ) top center no-repeat;
    width:100% ;
    height: 473px;
    display: block;
}


/*content_footer*/
.content_foot{
    background-color: #202020;
}
.content_foot1200{
    width:1200px;
    margin: 0 auto;
    height:80px;
    line-height: 80px;
    font-size: 14px;
    color:#FFF;
}
.content_foot1200 p{
   float: left;
}
.content_foot1200 span{
    float: right;
}