.banner {
    width: 100%;
    height:400px;
    overflow: hidden;
    position: relative;
}
.sy{
    width:100%;
    height:400px;
}
.list{
    height:420px;
}
.banner>ul {
    display: none;
    height: 400px;
    position: absolute;
    top:0;
    left: 0;
}
.banner>ul>li  {
    float: left;
    display: inline-block;
    width:100%;
    height: 400px;
}
.banner>ul>li>.home{
    display: inline-block;
    width:100%;
    height:400px;
    background: url(../images/banner1.png;);
}
.banner>ul>li>.list{
    display: inline-block;
    width:100%;
    height:400px;
    background: url(../images/banner1.png;);
}
.left-btn,.right-btn {
    width: 17px;
    height: 26px;
    position: absolute;
    bottom:50%;
    right: 30px;
    background: url("../images/right.png");
    cursor: pointer;
}
.left-btn {
    left: 30px;
    background: url("../images/left.png");
}
.img-btn-list {
    width: 100%;
    position: absolute;
    bottom: 10px;
    left: 0;
    text-align: center;
}
.img-btn-list > span  {
    display: inline-block;
    width: 14px;
    height: 14px;
    margin: 0 5px;
    background: #FFFFFF;
    border-radius: 50%;
    cursor: pointer;
}
.img-btn-list > span.current {
    background: #006367;
}