html,body{
  margin: 0;
  padding: 0;
}
.body{
  width: 750px;
  background: #fff;
  position: relative;
  margin: 0 auto;
}
.body_header{
  width: 750px;
  height: 120px;
}
.body_header_img{
  width: 34px;
  height: 34px;
  position: absolute;
  left: 26.5px;
  top: 43px;
  text-align: center;
}
.body_header_img img{
  width: 21px;
  height: 34px;
}
.body_header_title{
  width: 750px;
  text-align: center;
  font-size: 40px;
  font-weight: bold;
  color: #0A0A0A;
  line-height: 120px;
}
.body_first{
  width: 750px;
  height: 90vh;
  margin-top: 35px;
  overflow: scroll;
}
.body_first_img{
  width: 682px;
  height: 431px;
  margin: 0 auto;
  padding-bottom: 40px;
}
.body_first_img img{
  width: 682px;
  height: 431px;
}
.body_first_right{
  padding-top: 42px;
  width: 642px;
  margin: 0 auto;
}
.body_first_title{
  font-size: 37px;
  font-weight: bold;
  color: #0A0A0A;
  line-height: 50px;
}
.body_first_price{
  margin-top: 24px;
}
.body_first_price span:nth-child(1){
  font-size: 46px;
  font-weight: bold;
  color: #29A869;
  vertical-align: middle;
}
.body_first_price span:nth-child(2){
  font-size: 46px;
  font-weight: bold;
  color: #29A869;
  vertical-align: middle;
  margin-left: 12px;
}
.body_first_price span:nth-child(3){
  font-size: 13px;
  font-weight: normal;
  color: #29A869;
  vertical-align: middle;
  margin-left: 12px;
}
.body_first_item{
  margin-top: 46px;
  width: 642px;
  border-top: 1px solid #E5E6E8;
  font-size: 32px;
  font-weight: 800;
  color: #0A0A0A;
  line-height: 32px;
  padding-bottom: 250px;
}
.body_first_item_title{
  margin-top: 41px;
}
.body_first_item_msg{
  font-size: 28px;
  font-weight: normal;
  color: #0A0A0A;
  line-height: 46px;
  margin-top: 17px;
}
.body_first_btn{
  width: 750px;
  height: 128px;
  background: #FFFFFF;
  padding-top: 37px;
  box-shadow: 0px -1px 30px 0px rgba(0,0,0,0.1);
  position: absolute;
  bottom: 0px;
  left: 0px;
}
.body_first_btn div{
  display: inline-block;
}
.body_first_btn_msg{
  font-size: 32px;
  font-family: Adobe Heiti Std;
  font-weight: normal;
  color: #29A869;
  margin-left: 49px;
}
.body_first_btn_quantity{
  width: 209px;
  height: 77px;
  border-radius: 37px;
  margin-left: 14px;
  margin-right: 21px;
  vertical-align: middle;
  font-size: 0px;
}
.body_first_btn_quantity div{
  width: 66px;
  height: 73px;
}
.body_first_btn_quantity_left{
  background: #F4FFFA;
  border: 2px solid #29A869;
  border-radius: 10px 0px 0px 10px;
  text-align: center;
  vertical-align: middle;
}
.body_first_btn_quantity_left:active{
  background: #FCFFD0;
}
.body_first_btn_quantity_left:active img{
  content: url('../img/buy_androidBox/btn_quantity_left_s.png');
}
.body_first_btn_quantity_left img{
  width: 21px;
  height: 21px;
  content: url('../img/buy_androidBox/btn_quantity_left.png');
  padding-top: 27px;
}
.body_first_btn_quantity_center{
  border: 2px solid #29A869;
  margin: 0px -2px;
  vertical-align: middle;
  font-size: 32px;
  font-weight: normal;
  color: #29A869;
  line-height: 73px;
  text-align: center;
}
.body_first_btn_quantity_right{
  margin-left: -2px;
  background: #F4FFFA;
  border: 2px solid #29A869;
  border-radius: 0px 10px 10px 0px;
  text-align: center;
  vertical-align: middle;
}
.body_first_btn_quantity_right:active{
  background: #FCFFD0;
}
.body_first_btn_quantity_right:active img{
  content: url('../img/buy_androidBox/btn_quantity_right_s.png');
}
.body_first_btn_quantity_right img{
  width: 21px;
  height: 21px;
  content: url('../img/buy_androidBox/btn_quantity_right.png');
  padding-top: 27px;
}
.body_first_btn_buy{
  width: 357px;
  height: 94px;
  background: #29A869;
  border-radius: 47px;
  font-size: 34px;
  font-weight: normal;
  color: #FFFFFF;
  line-height: 94px;
  text-align: center;
  vertical-align: middle;
}