html, body {
            //height: 100%;
            margin: 0;
            display: grid;
            place-items: center;
            background-color: #f0f0f0;
			overscroll-behavior: none;
			position: fixed;
			width: 100%;
			height: 100%;
			overflow: hidden;
			touch-action: manipulation; /* 禁用双击放大 */
			  -webkit-text-size-adjust: 100%; /* 禁止字体自动调整 */
			  -moz-text-size-adjust: 100%;
			  -ms-text-size-adjust: 100%;
			  text-size-adjust: 100%;
        }
		
		
button {
			padding: 10px 20px;
            font-size: 16px;
            cursor: pointer;
            border: none;
            border-radius: 5px;
            color: white;
            -webkit-appearance: none; /* 移除 iOS 默认样式 */
            -moz-appearance: none;
            appearance: none;
            text-align: center;
            text-decoration: none;
            display: inline-block;
            transition: background-color 0.3s ease;
			background-color: #9da2a3;
			width:90px;
}

	
    .character-display {
      font-size: 30px;
      position: absolute;
	  top: 100px;
    }
	
	.button-container {
      display: block;
      justify-content: space-between;
      //width: 100%;
      //max-width: 400px;
      margin-top: 20px;
	  padding: 10px;
    }
	
	.button-container-main button {
		width: 300px;

	}
	
    .prev-btn {
      padding: 10px 20px;
      font-size: 16px;
      cursor: pointer;
      background-color: #4CAF50;
      color: white;
      border: none;
      border-radius: 5px;
      float: left;
      width: 100px;
    }

    .next-btn {
      padding: 10px 20px;
      font-size: 16px;
      cursor: pointer;
      background-color: #4CAF50;
      color: white;
      border: none;
      border-radius: 5px;
      float: right;
      width: 100px;
    }

    .completion-message {
      font-size: 18px;
      color: #4CAF50;
      margin-top: 20px;
    }

.back-btn {
      position: absolute;
      top: 10px;
      left: 10px;
      padding: 10px 20px;
      font-size: 16px;
      cursor: pointer;
	  background-color: #4082f5;
}