.mban {
  display: none;
  position: fixed;
  z-index: 9999;
  top:0;
  left:0;
  width:100%;
  height: 100vh;
  background: rgba(0,0,0, .1);
}
.menu {
  position: relative;
    margin: 5% auto;
    width: 2.8rem;
    height: 3.5rem;
    background: #ffffff;
    box-shadow: 0.015625rem 0.03125rem 0.20833333rem rgba(94, 94, 94, 0.16);
    opacity: 1;
    border-radius: 0.08333333rem;
    margin: 0.52083333rem auto;
  }
  
  .menu .form-hidden {
    position: absolute;
    top: 0.11979167rem;
    right: 0.11979167rem;
    width: 0.23958333rem;
    height: 0.23958333rem;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .menu .form-hidden img {
    width: 0.11979167rem;
    height: 0.11979167rem;
  }
  .menu .form-title {
    padding-top: 0.11979167rem;
    margin-bottom: 0.23958333rem;
    text-align: center;
    font-size: 0.16666667rem;
    font-family: source han sans cn;
    font-weight: 500;
    line-height: 0.28125rem;
    color: #333333;
  }
  .menu .form-font {
    padding: 0 0.21875rem;
  }
  .menu .form-font ul li {
    display: flex;
    justify-content: space-between;
    margin: 0.05208333rem 0;
  }
  .menu .form-font ul li span {
    font-size: 0.09rem;
    font-family: source han sans cn;
    font-weight: 400;
    line-height: 0.17708333rem;
    color: #666666;
  }
  .menu .form-font ul li input {
    outline: none;
    width: 1.5rem;
    height: 0.26041667rem;
    padding-left: 0.05rem;
    background: #ffffff;
    border: 1px solid rgba(112, 112, 112, 0.2);
    border-radius: 0.02083333rem;
    font-size: 0.07rem;
    font-family: source han sans cn;
    font-weight: 300;
    line-height: 0.140625rem;
    color: #999999;
  }
  .menu .form-font ul li:last-child {
    margin-top: 40px;
  }
  .menu .form-font ul li:last-child button {
    width: 3.18229167rem;
    height: 0.34rem;
    resize: none;
    margin: 0 auto;
    border:none;
    outline: none;
    background: #2970f9;
    border-radius: 0.08333333rem;
    font-size: 0.12rem;
    font-family: source han sans cn;
    font-weight: 500;
    line-height: 0.34rem;
    color: #ffffff;
  }
  .menu .form-font ul li:nth-last-child(2) textarea {
    width: 1.5rem;
    height: 0.57291667rem;
    font-size: 0.07rem;
    padding-left: 0.05rem;
    resize: none;
    outline: none;
    font-family: source han sans cn;
    font-weight: 300;
    line-height: 0.140625rem;
    color: #999999;
    background: #ffffff;
    border: 0.00520833rem solid rgba(112, 112, 112, 0.2);
    border-radius: 0.02083333rem;
  }