body {
    background: #ebeaef;
}
.banner {
    height: 641px;
    background: url(../images/banner.jpg?20180309) center no-repeat;
    overflow: hidden;
}
@media screen and (max-width: 1150px) {
    .banner {
        width: 1150px;
    }
}
.wapper {
    width: 1150px;
    margin: 0 auto;
    background: #fff;
}
a:hover {
    text-decoration: none;
}
.top-head {
    padding: 20px;
}
.titles {
    width: 100%;
    background: #c8c3c3;
}
.titles img {
    width: 100%;
    margin: 0 auto;
    display: block;
}
.top-head a {
    display: block;
}
.top-head a dl {
    height: 240px;
}
.top-head a dl dt {
    float: left;
    width: 450px;
    height: 240px;
}
.top-head a dl dd {
    margin-left: 470px;
}
.top-head a dl dd h4 {
    height: 50px;
    line-height: 50px;
    font-size: 22px;
    margin-bottom: 10px;
    overflow: hidden;
    text-align: center;
    border-bottom: 1px solid #ccc;
    color: #333;
}
.top-head a dl dd p {
    color: #999;
    font-size: 14px;
    line-height: 1.8;
}
.shop-list {
    margin-left: 20px;
    padding-top: 20px;
}
.shop-list ul li {
    float: left;
    width: 262px;
    margin-right: 20px;
    margin-bottom: 20px;
}
.shop-list ul li a {
    display: block;
    text-align: center;
    font-size: 16px;
    color: #333;
}
.shop-list ul li a img {
    width: 262px;
    height: 195px;
    display: block;
    margin-bottom: 10px;
}

.ad {
    width: 1150px;
    height: 80px;
    margin-bottom: 10px;
}
.ad img {
    width: 1150px;
    height: 80px;
}
.articl-list {
    margin: 0 20px 0;
    padding-top: 35px;
    overflow: hidden;
}
.articl-list li {
    width: 50%;
    float: left;
    margin-bottom: -30px;
}
.articl-list li a {
    display: block;
    margin-bottom: 42px;
}
.articl-list li a dl {
    height: 180px;
    overflow: hidden;
}
.articl-list li a dl dt {
    float: left;
    width: 224px;
    height: 146px;
}
.articl-list li a dl dt img {
    width: 224px;
    height: 146px;
}
.articl-list li a dl dd {
    margin-left: 236px;
}
.articl-list li a dl dd h4 {
    height: 39px;
    line-height: 39px;
    font-size: 18px;
    margin-bottom: 10px;
    overflow: hidden;
    text-align: left;
    border-bottom: 1px solid #ccc;
    color: #333;
}
.articl-list li a dl dd p {
    color: #999;
    font-size: 11px;
    line-height: 1.8;
}


.erwei {
    position: fixed;
    top: 30%;
    width: 175px;
    right: 20px;
}
.erwei img {
    display: block;
    width: 175px;
    height: 230px;
}
.part1, .part2, .part3, .part4 {
    margin-top: 40px;
    position: relative;
}
.vide-box {
    position: absolute;
    left: 169px;
    top: 354px;
    width: 465px;
    height: 260px;
    border-radius: 10px;
}

.vide-box a {
    display: block;
    width: 100%;
    height: 100%;
}


.common_fixed {
    overflow: hidden
}
.markbg {
    position: fixed;
    bottom: 0px;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #000;
    filter: Alpha(Opacity=50);
    opacity: 0.5;
    overflow: hidden;
    z-index: 10
}
.dn {
    display: none
}
.iframe-box {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 88;
    table-layout: fixed;
    width: 100%;
    height: 100%
}
.iframe-box td {
    width: 100%;
    height: 100%;
    vertical-align: middle;
    position: relative
}
.iframe-box iframe {
    display: block;
    margin: 0 auto
}
.iframe-box .closed {
    position: absolute;
    font-size: 24px;
    display: none;
    left: 50%;
    color: #fff;
    cursor: pointer;
    top: 50%;
    width: 36px;
    height: 36px;
    background: url(closeds.png) no-repeat;
    text-indent: -9999px;
    z-index: 99
}