.help_box {
    background: #fafafa;
  }
  
  // 头部
  .help_box .help_head {
    display: flex;
    justify-content: space-between;
    height: 1.5rem;
    background: #fff;
    // margin-bottom: .6rem; 
  }
  
  // 返回图标
  .help_box .help_head_returnA {
    margin: .3rem 0 0 .5rem;
  }
  
  .help_head_returnA_img {
    width: .5rem;
    height: .5rem;
    margin: .1rem 0 0 0;
  }
  
  // 标题
  .help_box .head_title {
    margin: 0 6.2rem 0 0;
    padding: .2rem 0 0 0;
  }
  
  .help_box .head_title_text {
    font-size: 25px;
    font-weight: 500;
    margin: 0 auto;
  }
  
  //线
  .help_segment {
    width: 100%;
    border-bottom: 1px solid rgb(190, 187, 187);
  }
  
// 主内容

// 版本号
.help_mainVersions {
    // border: 1px solid #000;
    margin-top: .8rem;
    background: #fff;
}
.help_mainVersions_img {
    padding: .5rem 0 0 0;
    width: 1.8rem;
    height: 1.8rem;
    margin: 0 auto;
}
.help_mainVersionsText {
    font-size: 15px;
    font-weight: 550;
    line-height: 3;
}

//公司介绍
.company_box {
    background: #fff;
    font-size: 15px;
    // border: 1px solid #000;
    padding: 5% 5% 5% 5%;
    width: 90%;
    margin: .5rem auto;
    text-align: left;
    text-indent:2em;
    color: #2b2b2b;
}

//官网网址
.official {
    padding: 5% 0 5% 0;
    background: #fff;
    // border: 1px solid #000;
    font-size: 13px;
    color: lighten($color: #777272, $amount: 0);
}

//图片
.btmImg_box {
    // border: 1px solid #000;
    display: flex;
    background: #fff;
    padding: 0 0 .4rem 0;
}
.btmImg {
    width: 35%;
}
.btmImg_box_text {
    text-align: left;
    text-indent:2em;
    font-size: 13px;
    line-height: 2;
    margin: 1.5rem 0 0 0;
}