video{
    position: fixed;
    right: 0;
    bottom: 0;
    min-width: 100%;
    min-height: 100%;
    height: auto;
    width: auto;
}
.pc_index_top{position: fixed;top:30px;left:30px;width:calc(100% - 60px);height: 60px;}
.pc_index_title{float:left;color:#fff;width: 300px;height: 60px;}
.pc_index_title img{height: 100%;}
.pc_index_type{float:left;width:calc(100% - 300px);height: 60px;}
.pc_index_type_name{float:right;width:100px;height:25px;text-align: center;line-height: 25px;font-size: 16px;cursor: pointer;margin-top:15px;color:#cfcece;}
.pc_index_type_bor{border-left:1px solid #fff;}
.pc_index_center{position: fixed;top:200px;left:20%;color:#fff;width:60%;height: 400px;}
.pc_index_center_img{width: 100%;height: 130px;text-align: center;}
.pc_index_center_img img{height: 100%;}
.pc-download{width: 70%;height:200px;margin:10px auto 0;}
.pc_app{float:left;width: 27%;height: 50px;line-height:50px;text-align: center;border-radius: 30px;margin:50px 3% 0;    background-color: rgba(255, 255, 255, 0.5);}
.pc_app a{font-size: 20px;color:#686868;}
.pc_app:hover{background: #fff;}
.erwm{;width: 150px;height: 150px;background: #fff;padding:10px;display: none;position: absolute;top:250px;right:0px;}
.pc_bottom_title{position: fixed;bottom: 30px;left: 0;width: 100%;height: 50px;}
.pc_bottom_title_name{width: 100%;height: 25px;line-height: 25px;text-align: center;color: #d7d7d7;}
a{text-decoration: none;}

.pc_index_center_title{width:70%;min-height:3em;line-height: 2em;color:#fff;font-size: 25px;font-weight: bold;overflow: hidden;text-align:center;margin:30px auto 0;}
.pc_index_center_center{width:70%;max-height:15em;margin:10px auto 0;color:#e6e6e6;font-weight: bold;font-size:16px;line-height:2em;}