* {
    margin: 0;
    padding: 0;
}

.html,body{
    width: 100%;
    height: 100%;
    min-width: 1500px;
}

a{
   text-decoration: none;
}

ul{
    list-style-type: none;
    margin: 0;
    padding: 0;  
}

.w{
    width: 100%;
    height: 100%;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

#head{
    width: 100%;
    height: 333px;
    background-image:url("../image/nav.png");
    background-repeat:no-repeat;
    background-size:100% 100%;
}


#head #logo{
    position: relative;
    width: 1455px;
    height: 160px;
    margin: 0 auto;
    background-image: url(../image/head-logo.png);
    background-size: 18%;
    background-repeat: no-repeat;
    background-position: 180px 34px;
}

#foot{
    width: 100%;
    height: 220px;
    background: #BF0000;
}


#foot .adds{
    height: 52px;
    font-size: 16px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    line-height: 26px;
    text-align: center;
    color: #FFFFFF;
    padding: 80px 0 0 0;
}

#foot .xsl{
    height: 26px;
    font-size: 16px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    line-height: 26px;
    color: #FFFFFF;
    text-align: center;
    margin:0,auto;
}

#nav{
    width: 100%;
    height: 48px;
    background: #BF0000;
    overflow: hidden;
    display: flex;
    justify-content: center;
}

#nav .nav_list li{
    float: left;
    margin: 10px 75px;
}

#nav .nav_list li a{
    font-size: 16px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    line-height: 31px;
    color: #FFFFFF;
}

#first_part{
    width: 1580px;
    height: 500px;
    margin: 0 auto;
    position: relative;
}

#mind_pircture #first_pricture{
    margin-left: 256px;
}

#sideshow{
    width: 558px;
    height: 418px;
    position: absolute;
    margin:20px 60px 0 200px;
}

#mind {
    width: 417px;
    height: 418px;
    position: absolute;
    left: 54%;
    margin-top: 20px;
}

#mind .mind_first{
    width: 390px;
    height: 45px;
    margin: 0 auto;
}

#mind .mind_first .mind_title {
    float: left;
    width:130px;
    height:45px;   
    position: relative;
    background: #BF0000;
}

.title{
    font-size: 18px;
    font-family: FZCuHeiSongS-B-GB;
    font-weight: 400;
    line-height: 23px;
    color: #FFFFFF;
}

#mind .mind_first .mind_title span{
    width: 77px;
    height: 23px;
    position: absolute;
    margin: 11px 27px;
}

.more{
    font-size: 14px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #707070;
}

#mind .mind_first a{
    float: left;
    width: 70px;
    height: 26px;
    line-height: 26px;
    font-size: 14px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #707070;
    position: absolute;
    margin: 9px 0 9px 255px;
}

#mind  #main_page{
    width: 360px;
    height: 360px;
}

#content #mind_pircture {
    width: 1125px;
    height: 170px;
    margin: auto auto;
}
#content #mind_pircture img{
   margin-right: 16px;
}
#content #mind_pircture:nth-last-child(2){
   margin-right: 0
}
#second_part{
    width: 1600px;
    height: 410px;
    position: relative;
    margin: 0 auto;
}

#comment{
    width: 462px;
    height: 418px;
    float: left;
    position: absolute;
    margin-left: 200px;
}

#comment .comment_first{
    width: 462px;
    height: 45px;
}

#comment .comment_first .comment_title {
    float: left;
    width:130px;
    height:45px;   
    position: relative;
    background: #BF0000;
}

#comment .comment_first .comment_title span{
    width: 77px;
    height: 23px;
    position: absolute;
    margin: 11px 27px;
}

#comment .comment_first a{
    width: 57px;
    height: 26px;
    line-height: 26px;
    font-size: 14px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #707070;
    position: absolute;
    margin: 9.5px 0;
    margin-left: 340px;
}

#work{
    width: 462px;
    height: 418px;
    float: left;
    position: absolute;
    left: 51%;
}

#work .work_second{
    width: 462px;
    height: 45px;
    margin: 0 auto;
}

#work .work_second .work_title{
    float: left;
    width:130px;
    height:45px;   
    position: relative;
    background: #BF0000;
}

#work .work_second .work_title span{
    width: 77px;
    height: 23px;
    position: absolute;
    margin: 11px 27px;
}

#work .work_second a{
    float: left;
    width: 56px;
    height: 26px;
    line-height: 26px;
    font-size: 14px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #707070;
    position: absolute;
    margin: 9.5px 0;
    margin-left: 340px;
}

#third_part{
    width: 1600px;
    height: 410px;
    position: relative;
    margin: 0 auto;
}

#classroom{
    width: 462px;
    height: 418px;
    float: left;
    position: absolute;
    margin-left: 200px;
}

#classroom .classroom_third{
    width: 462px;
    height: 45px;
}

#classroom .classroom_third .classroom_title{
    float: left;
    width:130px;
    height:45px;   
    position: relative;
    background: #BF0000;
}

#classroom .classroom_third .classroom_title span{
    width: 77px;
    height: 23px;
    position: absolute;
    margin: 11px 27px;
}

#classroom .classroom_third a{
    float: left;
    width: 56px;
    height: 26px;
    line-height: 26px;
    font-size: 14px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #707070;
    position: absolute;
    margin: 9.5px 0;
    margin-left: 340px;
}

#learn{
    width: 462px;
    height: 418px;
    float: left;
    position: absolute;
    left: 51%;
}

#learn .learn_fourth{
    width: 462px;
    height: 45px;
}

#learn .learn_fourth .learn_title{
    float: left;
    width:130px;
    height:45px;   
    position: relative;
    background: #BF0000;
}

#learn .learn_fourth .learn_title span{
    width: 77px;
    height: 23px;
    position: absolute;
    margin: 11px 27px;
}

#learn .learn_fourth a{
    float: left;
    width: 56px;
    height: 26px;
    line-height: 26px;
    font-size: 14px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #707070;
    position: absolute;
    margin: 9.5px 0;
    margin-left: 340px;
}

#fourth_part{
    width: 1600px;
    height: 362px;
    position: relative;
    margin: 0 auto;
}

#fourth_part .video{
    width: 1024px;
    height: 362px;
    margin-left: 200px;
}

#fourth_part .video .video_title{
    width:130px;
    height:45px;   
    position: relative;
    background: #BF0000;
}

#fourth_part .video .video_title span{
    width: 77px;
    height: 23px;
    position: absolute;
    margin: 11px 27px;
}

#fourth_part .video .video_part{
    margin: 40px 0 0 0;
}

#fourth_part .video .video_part img{
    margin-right:54px;
}