*{margin:0;padding:0;list-style: none;}

/*.h400{height:400px;}*/

.section0{position:relative;position:relative;overflow:hidden;display:block;margin:30px auto;}

.section0 dl{position:absolute;left:50%;top:33%;margin-left:-25%;}
.section0 dl dt{height:66px;line-height:66px;color:#4a4a4a;font-size: 40px;font-weight: normal;}
.section0 dl dd{height:48px;line-height:48px;color:#fb274c;font-size: 16px;}

.section1 .video{overflow: hidden;width:76%;margin:30px auto 0;}
.section1 img{cursor:pointer;width:100%;height:100%;}
.section1 ol{overflow: hidden;width:75%;margin:0px auto;}
.section1 ol li{float:left;width:25%;height:46px;line-height:46px;text-align: center;font-size: 14;color:#4d4d4d;}
.section1 ol li:nth-child(4){margin:0;}

.section2{position:relative;overflow: hidden;width:75%;margin:30px auto 0;border:1px solid #979797;border-radius: 10px;height:196px;margin-bottom: 122px;}

.line{width:0;border-right:1px solid #979797;height:154px;position:absolute;left:50%;top:20px;}

.section2 ul{overflow:hidden;width:100%;height:100%;}
.section2 ul li{float:left;width:50%;height:100%;}
.section2 ul li div{position:relative;width:90%;height:49%;line-height:98px;border-bottom:1px solid #979797;margin:0 auto;color:#4d4d4d;}
.section2 ul li div:nth-child(even){border:none;}
.downBtn{position:absolute;top:0;right:20%;}
.downTime{position:absolute;right:10px;}

.nav-switch{color:#a9a9a9;}
.nav-switch a{color: #6d6d6d;text-decoration: none;font-size: 14px;}
.nav-switch a.tab-active{color: #1a96d4;cursor: default;}

#bg1{display:block;}
#bg1big{display:none;}

#img1{display:block;}
#img1big{display:none;}

#img2{display:block;}
#img2big{display:none;}

#img3{display:block;}
#img3big{display:none;}

#img4{display:block;}
#img4big{display:none;}

@media screen and (min-width: 1921px) {
#bg1{display:none;}
#bg1big{display:block;}

#img1{display:none;}
#img1big{display:block;}

#img2{display:none;}
#img2big{display:block;}

#img3{display:none;}
#img3big{display:block;}

#img4{display:none;}
#img4big{display:block;}
}