.bn317 {
    width: 100%;
    min-width: 1000px;
    z-index: 20;
    position: relative;
}
.bn317 .list, .bn317 li, .bn317 img {
    height: 600px;
}
.bn317 li {
    width: 100%;
    position: absolute;
    z-index: 1;
    overflow: hidden;
    background: #fff;
    -webkit-transition: none;
    -moz-transition: none;
    -ms-transition: none;
    -o-transition: none;
    transition: none;
}
.bn317 li img {
    width: 1920px;
    display: block;
    position: relative;
    left: 50%;
    margin-left: -960px;
    top: 0;
}
.bn317 li a {
    display: block;
    width: 100%;
}
.bn317 .tip {
    width: 100%;
    height: 6px;
    text-align: center;
    position: absolute;
    left: 0;
    bottom: 24px;
    z-index: 10;
}
.bn317 .tip span {
    width: 10px;
    height: 10px;
    margin: 0 9px;
    border: 2px solid #67b306;
    display: inline-block;
    cursor: pointer;
    vertical-align: top;
    border-radius: 100%;
}
.bn317 .tip span.cur {
    background: #67b306;
}
.bn317 .prev, .bn317 .next {
    width: 50px;
    height: 70px;
    position: absolute;
    z-index: 12;
    top: 50%;
    margin-top: -40px;
    cursor: pointer;
    transition: none;
    background: url(/public/images/btn317.png) no-repeat 0 center;
}
.bn317 .prev {
    left: 3%;
    background-position: 8px center;
}
.bn317 .next {
    right: 3%;
    background-position: -59px 0;
}