/* new */
html{
  height: 100%;
}

body {
    width: 100%;
    height: 100%;
    min-height:100vh;
    background:url('../../images/sign_Bg.png')no-repeat center center;
    background-size: cover;
    background-attachment: fixed;
  }
  .main-wrapper{
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    flex-wrap: nowrap;
    width: 100%;
    min-height: 90vh;
    padding: 16px 5%;
  }
  .main_card{
    width: 600px;
    margin:100px auto 30px;
    background: #ffffff;
    padding: 40px 16px 40px;
    border-radius: 16px;
    box-shadow: 0px 10px 20px rgba(70, 5, 130, 0.2);
    padding-bottom: 50px;
  }
 
  .main_card .login_form{
   max-width: 80%;
   margin: 0 auto;
  }
     /* rwd */
     @media screen and (max-width:768px) { 
      .main_card{
        width: 100%;
      
      }
      .main_card .login_form{
        max-width: 90%;
        margin: 0 auto;
       }
    }

  .main_card .formTitle{
    font-size: 16px;
    font-weight: 600;
    position: relative;
    margin-bottom: 24px;
   }
  .main_card .formTitle::after{
    content: '';
    display: inline-block;
    position:absolute;
    width: 100%;
    height: 1px;
    background-color: #6C757D;
    bottom: -8px;
    right: 0;
   }

  .button-group{
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .button-group .back-btn{
    width: 30px;
  }
  
  .mainLogo{
    width: 120px;
    display: block;
  }
  
  footer{
    text-align: center;
    font-size: 12px;
    color: #6C757D;
    padding: 30px 0 12px;
  }
  footer > .copyright-wrap> a{ 
    text-align: center;
    font-size: 12px;
    color: #6C757D 
  }
   /* 必填 */
  .required_dot{
    color:#DC3545;
    font-size: 16px;
  }