.flexslider {
    margin: 0px auto 20px;
    position: relative;
    width: 100%;
    height: 562px;
    overflow: hidden;
    zoom: 1;
    z-index: 1;
}

.flexslider .slides li {
    width: 100%;
    height: 100%;
}
.bannerCtrl{
    width: 70px;
    height: 70px;
    border-radius: 5%;
    background: #2b343b;
}
.flex-direction-nav a {
    width: 70px;
    height: 70px;
    line-height: 99em;
    overflow: hidden;
    margin: -35px 0 0;
    display: block;
    background: url(../img/ad_ctr.png) no-repeat;
    position: absolute;
    top: 50%;
    z-index: 10;
    cursor: pointer;
    opacity: 0;
    filter: alpha(opacity=0);
    -webkit-transition: all .3s ease;
    border-radius: 2px;
}
.flex-control-nav {
    width: 100%;
    position: absolute;
    left: 48%;
    bottom: 100px;
    text-align: center;
}
.flex-control-nav li {
    float: left;
    width: 50px;
    height: 2px;
    display: inline-block;
    zoom: 1;
    background: #ffffff;
    opacity: 0.7;
    *display: inline;
}
.flex-control-paging li a {

    text-indent: -9999999em;
}
.flex-control-paging li a.flex-active,
.flex-control-paging li.active a {
    background: #ffc000;
    background-position: 0 0;
}

.flexslider .slides a img {
    width: 100%;
    height: 100%;
    display: block;
}