.page:nth-child(4) .body{
    width:100%;height:100%;
    position:absolute;left:0;right:0;z-index:1;
    background-image:url('../images/page4_bg1.png');background-repeat:no-repeat;background-position: top;
    -webkit-animation:fadeInDown 1s .2s ease both;
    -moz-animation:fadeInDown 1s .2s ease both;
}
.page_hover .page4_title{
    -webkit-animation:fadeInUp 1s .2s ease both;
    -moz-animation:fadeInUp 1s .2s ease both;}
@-webkit-keyframes fadeInUp{
    0%{opacity:0;
        -webkit-transform:translateY(2000px)}
    100%{opacity:1;
        -webkit-transform:translateY(0)}
}
@-moz-keyframes fadeInUp{
    0%{opacity:0;
        -moz-transform:translateY(2000px)}
    100%{opacity:1;
        -moz-transform:translateY(0)}
}
.page4_title{margin:0 auto;position:absolute;top:35%;left:0;right:0;width:282px;height:120px;color:#FFF;}
.page4_title_number{
    float: left;height: 100%;width: 80px;font-size: 126px;line-height:120px;
    -webkit-animation:pulse 3s .2s ease both;
    -moz-animation:pulse 3s .2s ease both;
}
.page4_title_desc{float:left;}
.page4_title_desc p{
    font-size:36px;line-height:60px;font-weight:600;
    -webkit-animation:fadeInUpBig2 1s .2s ease both;
    -moz-animation:fadeInUpBig2 1s .2s ease both;
}
.page4_title_english{
    font-size: 26px;
    font-weight: 100;
    line-height: 26px;
    font-family: 微软雅黑;
    letter-spacing: 5px;
    -webkit-animation:fadeInUpBig2 2s .2s ease both;
    -moz-animation:fadeInUpBig2 2s .2s ease both;
}
.page4_bg{overflow:hidden;float:left;}
.page4_bg .page_bg_li{width:25%;height:100%;float:left;text-align:center;position:relative;}
.page4_bg .page_bg_li .opacity{width:100%;height:100%;background:#000;opacity:0.6;position:absolute;top:0;left:0;z-index:5;}
.page4_bg .page_bg_li img{width:100%;height:100%;position:absolute;left:0;top:0;z-index:3;}

.page4_bg .page_bg_li .page4_bg_desc{width:100%;z-index:4;position:absolute;top:32%;margin:0 auto;z-index:6;text-align:center;}
.page4_bg .page_bg_li .page4_bg_desc span{display:none;width:100%;height:100%;background:#c9151e;opacity:0.9;z-index:4;position:absolute;left:0;top:0;}
.page4_bg .page_bg_li .page4_bg_desc p{width:100%;height:40px;line-height:40px;color:#FFF;font-size:30px;font-weight:bold;position:relative;z-index:5;}
.page4_bg .page_bg_li .page4_bg_desc .page4_bg_list{display:none;position:relative;z-index:5;}
.page4_bg .page_bg_li .page4_bg_desc .page4_bg_list div{margin-bottom:12px;}
.page4_bg .page_bg_li .page_bg_desc_hover{
    padding:40px 0;
    -webkit-animation:bounceIn 1s .2s ease both;
    -moz-animation:bounceIn 1s .2s ease both;}
@-webkit-keyframes bounceIn{
    0%{opacity:0;
        top:-50px;
        -webkit-transform:scale(.3)}
    50%{opacity:1;

        -webkit-transform:scale(1.05)}
    70%{-webkit-transform:scale(.9)}
    100%{top:32%;-webkit-transform:scale(1)}
}
@-moz-keyframes bounceIn{
    0%{opacity:0;
        top:-50px;
        -moz-transform:scale(.3)}
    50%{opacity:1;
        -moz-transform:scale(1.05)}
    70%{-moz-transform:scale(.9)}
    100%{top:32%;-moz-transform:scale(1)}
}
.page4_bg .page_bg_li .page_bg_desc_hover span{display:block;}
.page4_bg .page_bg_li .page_bg_desc_hover .page4_bg_list{display:block;color:#FFF;}
.page4_bg .page_bg_li .page_bg_desc_hover .page4_bg_list div{float:left;width:50%;}