.head{
    border-bottom: 1px solid #d8d8d8;
    vertical-align: middle;
    width: 100%;
    display: block;
    height: 5rem;
    line-height:5rem;
}
.logo{
    float: left;
    background-image: url("../images/xzys.png");
    background-size: 100% 100%;
    background-repeat:no-repeat;
    height: 3.6rem;
    width: 3.6rem;
    margin: 0.7rem 1.8rem;
}
.contentText1{
    color: #384450;
}
.contentTopPic{
    width : 30rem;
    height: 32.15rem;
    margin: 2rem auto 0 auto;
    background-image: url("../images/ic_home.png");
    background-size: 100% 100%;
    background-repeat:no-repeat;
}
.contentCenter{
    background-color: #eff9ff;
    padding-bottom: 5rem;
}
.ic1{background-image: url("../images/ic_1.jpg");}
.ic2{background-image: url("../images/ic_2.jpg");}
.ic3{background-image: url("../images/ic_3.jpg");}
.ic4{background-image: url("../images/ic_4.jpg");}
.ic5{background-image: url("../images/ic_5.jpg");}
.ic6{background-image: url("../images/ic_6.jpg");}
.contentTopBtnLeft{
    background-image: url("../images/btn_ios_n.jpg");
}
.contentTopBtnRight{
    background-image: url("../images/btn_android_n.jpg");
}
.contentTopBtnLeft:hover{background-image: url("../images/btn_ios_s.jpg");}
.contentTopBtnRight:hover{background-image: url("../images/btn_android_s.jpg");}