.banner2{width:100%;overflow:hidden;}
.large_box{margin-bottom:10px;width:100%;overflow:hidden;height:605px;border:6px solid #fff;box-sizing: border-box;}
.large_box img{display:block;}
.small_box{width:100%;height:146px;}
.small_list{position:relative;float:left;width:100%;height:146px;}
.small_list ul{height:146px;}
.small_list ul li{position:relative;float:left;margin:3.5px;width:186px; height: 146px;}
.small_list ul li img{display:block; width: 100%;height: 100%;}
.small_list ul li .bun_bg{
    display:none;
    position:absolute;
    top:0;
    left:0;
    width:186px;
    height:146px;
    background: rgba(0, 0, 0, 0.73);
    padding:10px;
    box-sizing: border-box;
}
.bg-line{
    width: 100%;
    height: 100%;
    border:1px solid #0068b7;
}
.bg-line a{color:#0068b7;}
.bg-more{
    width: 104px;
    height: 26px;
    border-radius: 13px;
    overflow: hidden;
    margin: 0 auto;
    border: 1px solid #0068b7;
    text-align: center;
    color: #183985;
    line-height: 26px;
    font-size: 12px;
    margin-top: 50px;
}
.line{
    position: absolute;
    left: 50%;
    top:-35px;
    width: 1px;
    height: 90px;
    background-color: #0068b7;
    display: none;
}
.small_list ul li.on .bun_bg{display:block;}
.small_list ul li.on .line{
    display: block;
}
/*.btn{*/
/*    display:block;*/
/*    width:20px;*/
/*    height:73px;*/
/*    background-color:#777;*/
/*    background-repeat:no-repeat;*/
/*    background-position:center center;cursor:pointer;}*/
/*.btn:hover{background-color:#e7000e;}*/
/*.left_btn{float:left;margin-right:10px;background-image:url(../images/left_btn.png);}*/
/*.right_btn{float:right;background-image:url(../images/right_btn.png);}*/