body{max-width: 1000px;}
.bigger3 {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 5% 5% 5%; 
    border-bottom: 1px solid #ededed;
}
.neir_bt {
    margin: 3% 0;
}
.biaoti {
       text-align: center;
        font-size: 1.2em;
    font-weight: 700;
    color: #3c3434;
}
 
.shij { font-size: 1em;
    color: #979696;
    text-align: center;
        padding: 14px;
    border-bottom: 1px solid #555;
}
.nr_con {
    font-size: 1em;
}
.nr_con {
    color: #2c2c2c;
}
.nr_con img {
    width: 100%;
}
.nr_con .m-b20 { padding-top: 30px;
    padding-bottom: 14px;
    border-bottom: 1px solid #c3b5b5;
    margin-bottom: 16px;
}
.dili{
    height: 63px;
    width: 46px;
    float: left; 
    background: url(../img/2LJ7YM5PK0RYYTPM.png) no-repeat 80% 20%;
    background-size: 50% 50%;
}

  #top11 {
    position: fixed;
    top: 0;
    z-index: 1000;
    width: 100%;
    height: 104px;
}