body {
  position: relative;
  min-height: 100vh;
}

  .floating-button {
    position: fixed;
    right: 20px;
    bottom: 20px;
    width: 50px;
    height: 50px;
    background-color: #FFFFFF;
    color: ;
    border-radius: 50%;
    text-align: center;
    line-height: 50px;
    cursor: pointer;
    z-index: 999;
    border-radius: 10px;
  }

  .kongzhi {
    position: fixed;
    left: 50%;
    transform: translateX(-50%);
    bottom: -400px;
    width: auto;
    max-width: 50%;
    height: auto;
    max-height: 100%;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    transition: bottom 0.3s ease-in-out;
    z-index: 998;
  }

  .kongzhi.open {
    bottom: 20px;
  }

  .card-content {
    padding: 20px;
  }

  .input-container {
    margin-bottom: 20px;
  }

  .input-container input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
  }