body {
    background-color: #f8f9fa;
    min-height: 100vh;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .container {
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .question-box, .result-box {
    display: none;
  }
  .vehicle-img {
    max-width: 200px;
    margin: 20px auto;
  }
  .qa-list {
    text-align: left;
    margin-top: 20px;
  }
  .qa-list li {
    margin-bottom: 5px;
  }
  .vehicle-img {
    max-width: 100%;
    max-height: 250px;
    border: 1px solid #ccc;
    padding: 10px;
    background: #fff;
  }

<!-- ...existing code... -->
    #imageResult {
      max-width: 100%;
      border-radius: 10px;
    }
    .hide {
      display: none;
    }