.login_bg{
  width: 100%;
  height: calc(100vh);/*获取屏幕高度*/
  zoom: 1;
  background-image: url('../images/bg_login.webp');
  background-size: cover;
  -webkit-background-size: cover;
  -o-background-size: cover;
  background-position: center 0;
  border-radius: 0 0;

}

.login_title{
  height:300px;
}

.login_title_cn{
  padding: 20px 0px 0px 10px;
  font-size: 48px;
  font-weight: bolder;
}

.login_title_en{
  padding: 0px 0px 0px 10px;
  font-size: 36px;
  font-weight: bolder;
}

.login_pannel{
  padding: 30px 0px 50px 0px;
  background-color:#ffffff;
  opacity: 0.9;

}

.login_logo{
  text-align: center;
  padding: 0px 0 30px 0;
  overflow: hidden;
}

.login_link{
  padding-top: 20px;
}
.span_left{
  float: left;
  padding-left: 10px;
}
.span_right{
  float: right;
  padding-right: 10px;
}

.error{
  color: #FF0000;
}

/* 当浏览器的可视区域小于600px */
@media screen and ( max-width: 600px ) {
  .login_title{
    height:auto;
  }

  .login_title_cn{
    font-size: 24px;
    font-weight: bolder;
  }

  .login_title_en{
    font-size: 18px;
    font-weight: bolder;
  }

}