body{
    background-color: #fff;
    padding-top: 80px;
  }

  .module{
    width: 1200px;
  }
  .banner{
    width: 100%;
    min-width: 1200px;
    height: 420px;
  }
  .banner_con{
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
  }
  .banner_con .text{
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }
  .banner_con .text h3{
    font-size: 34px;
    color: #fff;
    letter-spacing: 40px;
  }
  .banner_con .text p{
    margin-top: 48px;
    font-size: 14px;
    color: #fff;
    letter-spacing: 20px;
  }
  .banner_con img{
    position: absolute;
    z-index: 0;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
  }
  
  .introduce{
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 80px;
    padding-bottom: 35px;
  }
  .introduce h3{
    font-size: 24px;
    color: #000;
    line-height: 1;
    margin-bottom: 15px;
  }
  .introduce p{
    font-size: 14px;
    line-height: 40px;
    color: #666;
    text-align: center;
  }
  
  .mission{
    background-color: #f7f7f7;
    box-sizing: border-box;
    padding: 60px 15px;
    display: flex;
  }
  .mission h3{
    width: 310px;
    text-align: center;
    font-size: 28px;
    color: #000;
  }
  .mission .con{
    flex: 1;
    border-left: 1px solid #ececec;
    display: flex;
    flex-direction: column;
    padding: 0 45px;
  }
  .mission .con_left h3{
    flex: 1;
    font-size: 18px;
    color: #333;
    margin-bottom: 20px;
    white-space: nowrap;
  }
  .mission .con_left p{
    font-size: 14px;
    color: #666;
    line-height: 34px;
  }
  .mission .con a{
    align-self: flex-end;
    margin-top: 45px;
  }
  .partner_bg{
    width: 100%;
    display: flex;
    justify-content: center;
    background-color: #f7f7f7;
  }
  .partner{
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 83px;
  }
  .partner h3{
    font-size: 30px;
    color: #333;
  }
  .partner .list{
    width: 100%;
    margin-top: 53px;
    display: flex;
    justify-content: space-between;
  }
  .partner .list .item{
    width: 286px;
    height: 260px;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: #fff;
  }
  .partner .item img{
    align-self: flex-start;
  }
  .partner .item p{
    margin-top: 35px;
    font-size: 24px;
    color: #333;
  }
  .nav_b{
    width: 100%;
    height: 60px;
    position: relative;
  }
  .nav_b .box{
    width: 100%;
    height: 60px;
    position: absolute;
    left: 0;
    top: 0;
    background-color: #eee;
    display: flex;
    justify-content: center;
    z-index: 999;
  }
  .nav_b .box .con{
    width: 1280px;
    box-sizing: border-box;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
  }
  .nav_b .box .con a{
    font-size: 18px;
    color: #333;
    line-height: 60px;
    box-sizing: border-box;
    border-bottom: 2px solid #eee;
    transition: 0.5s;
  }
  .nav_b .box .con a:hover{
    border-color: #0064f4;
  }
  .nav_b .box .con .on{
    border-color: #0064f4;
  }

.history{
  width: 100%;
  max-width: 1920px;
  margin-top: 80px;
  position: relative;
  height: 380px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.history img{
  width: 1920px;
  height: 380px;
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
}
.history .module{
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.history h3{
  font-size: 28px;
  color: #fff;
  position: relative;
  z-index: 15;
}
.history .con{
  padding-top: 67px;
  position: relative;
  z-index: 15;
}
.history .con .line{
  width: 100%;
  height: 2px;
  box-sizing: border-box;
  padding: 0 15px;
}
.history .con .line::after{
  content: "";
  display: block;
  background-color: #fff;
  width: 100%;
  height: 100%;
}
.history .con .list{
  display: flex;
  margin-top: -16px;
}
.history .con .list .item{
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 5px solid rgba(255, 255, 255, 0.2);
  position: relative;
}
.history .con .list .item::after{
  display: block;
  content: "";
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #fff;
}
.history .con .list .item+.item{
  margin-left: 160px;
}
.history .con .list .item p{
  position: absolute;
  top: 37px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 18px;
  color: #fff;
  white-space: nowrap;
}
.history_list{
  padding: 60px 0;
  height: 160px;
}
.history_list .module{
  padding: 0;
  width: 1200px;
  height: 100%;
  margin: 0 40px;
  overflow-x: hidden;
}
.history_list .list{
  display: flex;
}
.history_list .item{
  width: 400px;
  box-sizing: border-box;
  padding-right: 25px;
}
.history_list .item h3{
  font-size: 20px;
  color: #000;
}
.history_list .item .info{
  width: 100%;
  margin-top: 30px;
  border-top: 1px solid #eee;
}
.history_list .item .info_item{
  display: flex;
  align-items: center;
}
.history_list .item .info_item p{
  font-size: 14px;
  color: #333;
  margin-top: 30px;
}
.structure{
  width: 100%;
  padding: 70px 0;
  background-color: #fbfbfb;
  display: flex;
  justify-content: center;
}
.structure .module{
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.structure .module h3{
  font-size: 28px;
  color: #333;
  position: absolute;
  top: 0;
  left: 0;
  line-height: 1;
}
.culture{
  padding: 40px 0;
}
.culture .module{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}
.culture .item{
  width: 50%;
  box-sizing: border-box;
  padding: 15px 0;
}
.culture .item:nth-child(2n){
  padding-left: 75px;
}
.culture .item:nth-child(2n-1){
  padding-right: 75px;
}
.culture .item h3{
  font-size: 28px;
  color: #000;

}
.culture .item  .company_bold{
  font-weight: bold;

}
.culture .item p{
  font-size: 14px;
  line-height: 22px;
  color: #666;
  margin-top: 10px;
  text-align: justify;
}
.address_bg{
  
}
.address_b{
  width: 1200px;
  padding: 0 40px;
  height: 420px;
  display: flex;
}
.address_b .left{
  width: 50%;
  height: 100%;
}

.address_b .right{
  width: 50%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  box-sizing: border-box;
  padding: 0 60px;

}
.address_b .right h3{
  font-size: 28px;
  color: #000;
  margin-bottom: 30px;
}
.address_b .right p{
  font-size: 16px;
  color: #999;
  margin-top: 15px;
}