body,div,ul,li{margin:0;padding:0;}
ul{list-style:none;}
img{border:0;}

.banner{margin:0 auto;width:1200px;overflow:hidden;position: relative}
.large_box{margin-bottom:10px;width:1200px;height:880px;overflow:hidden;}
.large_box li>img{display:block;
    width: 840px;
    height: 610px;
    margin-left: 360px;
    border: 2px solid #fff;

}
.small_box{width:591px;height:73px;position: absolute;
    top: 500px;
    right:124px;}
.small_list{position:relative;float:left;width:591px;height:73px;overflow:hidden;}
.small_list ul{height:73px;overflow:hidden;}
.small_list ul li{position:relative;float:left;margin-right:10px;width:110px;cursor: pointer}
.small_list ul li img{display:block;
    height: 73px;
    width: 110px;
    border: 2px solid #fff;
}
.small_list ul li .bun_bg{
    display:block;position:absolute;top:0;left:0;width:110px;height:73px;background:#000;filter:alpha(opacity=40);-moz-opacity:0.4;-khtml-opacity:0.4;opacity:0.4;}
.small_list ul li.on .bun_bg{display:none;
}
.btn{
    z-index: 9999;
    display:block;
    width: 60px;
    height: 606px;
    background-repeat:no-repeat;
    background-position:center center;cursor:pointer;
    -webkit-transform: all 1.4s ease;
    -moz-transform: all 1.4s ease;
    -ms-transform: all 1.4s ease;
    -o-transform: all 1.4s ease;
    transform: all 1.4s ease;
}
.btn:hover{
    -webkit-transform: scale(1.1);
    -moz-transform: scale(1.1);
    -ms-transform: scale(1.1);
    -o-transform: scale(1.1);
    transform: scale(1.1);
    
}
.left_btn{
    position: absolute;
    top: -498px;
    left: -122px;
    margin-right:10px;background-image:url(../images/left_btn.png);
}
.right_btn{
    position: absolute;
    top: -498px;
    right: -122px;
    background-image:url(../images/right_btn.png);}
.banner-content{
    margin-top: 30px;
    color: #000;
    width: 100%;
    height: 240px;
    text-align: left;
}
.banner-content img{
    margin: 10px 0;
}
.banner-content p{
    color: #000;
    line-height: 1.8;
    text-indent: 2em;
    text-align: justify;
}