*{
    margin: 0;
    padding: 0;
}
a{
    text-decoration: none;
    font-family:"微软雅黑","宋体";
  }
.icon{
    vertical-align: middle;
}
/* 头部 */
.top{
    width: 2196px;
    height: 50px;
    background-color: white;
    margin: 0 auto;
}

.top .top_left{
    height: 50px;
    float: left;
    text-align: center;
}
.top .top_left:nth-child(1){
    margin-left: 600px;
    line-height: 50px;
}
.top_right{
    float:left;
    margin-left: 600px;
}
.top_right a {
    line-height: 50px;
    color: black;
}
.top_right a:hover{
    color:blue;
}
.top_right span{
    color: #d3d3d4;
}
.top_right a:last-child{
    border: 1px solid #c3c2c8;
}
.top_right .icon{
    width: 15px;
    height: 15px;
   
}


/* 中间 */
.middle{
    float: left;
    width: 2196px;
    height: 890px;
    background: url(../images/index-bg.jpeg);
    
}
.middle .logo{
      float: left;
      margin-top: 80px;
      margin-left: 120px;
}
.middle .logo img{
    width: 450px;
    height: 200px;
   
}

.middle video{
    float: left;
    margin-top: 100px;
    margin-left: 800px;
    width: 500px;
    height: 250px;
    background-color: black;
}
.middle .xianqing {
    float: left;
    width: 250px;
    height: 100px;
    margin-left: 400px;
    margin-top: 300px;

}
.middle .xuanxiang{
    display: inline-block;
    text-decoration: none;
    margin-top: 475px;
}
.middle .xuanxiang ul {
    list-style: none;
     float: left;
     margin-top: 25px;
     
}
.middle .xuanxiang ul li{
    width:190px ;
    height: 62.5px;
    line-height: 62.5px;
    text-align: center;
}
.middle .xuanxiang ul li:nth-child(1){
    background-color: #991400;
}
.middle .xuanxiang ul li:nth-child(2){
    background-color: #414659;
}
.middle .xuanxiang ul li:nth-child(3){
    background-color: #4f525e;
}
.middle .xuanxiang ul li:nth-child(4){
    background-color: #464a51;
}
.middle .xuanxiang ul li a{
    font-size: 15px;
    color: #ffff;
    line-height: 62.5px;
    text-align: center;
}
.middle .xuanxiang ul li img{
    width: 25px;
    height: 20px;
   
}
/* 尾部 */
.end{
    float: left;
    width: 2196px;
    height: 170px;
    background-color: #282825;
}
.end img{
   float: left;
   margin-left: 600px;
   margin-top: 15px;
}
.end  .fenge{
    float: left;
    color: #52524f;
    font-size: 60px;
}
.end .wenzi{
    float: left;
    margin-left: 15px;
    
}
.end .wenzi a{
    font-size: 8px;
    color: #6b6e6d;
}
.end .wenzi span{
    color: #6b6e6d;
}