/* 移除数字输入框默认的上下按钮 */
    input::-webkit-outer-spin-button,
    input::-webkit-inner-spin-button {
      -webkit-appearance: none;
      margin: 0;
    }
    /* 全局移除默认外观 */
    input, textarea {
      -webkit-appearance: none;
      -moz-appearance: none;
      appearance: none;
    }
    .required::after {
      content: "*";
      color: #EF4444;
      margin-left: 4px;
    }
    .error-message {
      margin-top: 4px;
    }
    /* 针对移动端，使用 !important 强制边框、背景和聚焦样式与 PC 保持一致 */
    @media (max-width: 640px) {
      input, textarea {
        background-color: #fff !important;
        border: 1px solid #d1d5db !important; /* Tailwind border-gray-300 */
        box-sizing: border-box;
        background-clip: padding-box;
      }
      input:focus, textarea:focus {
        border-color: #EF8A35 !important;
      }
    }