.bamm{
    width: 1300px;
    /*background-color: red;*/
    margin: 0 auto;
    padding: 20px;
}
.banners{
    width: 100%;
}
.banners img{
    width: 100%;
}
.downbtn{
    display: inline-block;
    padding:5px 20px;
    border:1px solid #019ca1;
    color:#019ca1;
    border-radius:5px;
    font-size:14px;
    margin-top:20px;
}
.downbtn i{
    margin-right:5px;
}
.downbtn:hover{
    background:#019ca1;
    color:#fff;
}
.product{
    overflow: hidden;
    margin-bottom:30px;
}
.product .info{
    width:600px;
    float:right;
}
.product .imgbox{
    width:476px;
    float:left;
}
.product img {
    max-width: 100%;
}
.product .des{
    margin-top:20px;
}
.bamm_title{
    font-weight:bold;
    color: #333333;
}
.layui-tab-title li{
    float: right;
}
.layui-tab-content {
     margin-top: 20px;
 }
.layui-tab-title .layui-this:after {
    position: absolute;
    left: 0;
    top: 0;
    content: '';
    width: 100%;
    height: 41px;
    color: #70C5BC;
    border: 0px;
    box-sizing: border-box;
    pointer-events: none;
}
.layui-tab-title .layui-this {
    color: #70C5BC;
}
.research_content{
    width: 100%;
    margin-bottom: 10px;
    padding-top: 10px;
    padding-bottom: 20px;
    border-top: 1px solid #f0f0f0f0;
    /*background-color: yellow;*/
}
.layui-tab-title {
    position: relative;
    left: 0;
    height: 40px;
    white-space: nowrap;
    font-size: 0;
     border-bottom:  0px;
    transition: all .2s;
    -webkit-transition: all .2s;
}
.content_img{
    margin-top: 20px;
}
.title_centers{
    font-size: 35px;
    margin: 60px 0;
}.title_center{
    font-size: 15px;
    padding-top: 30px;
    color: #4b4948;
    width: 800px;
}
.null{
    text-align: center;
    color: #70C5BC;
}