.container {
            max-width: 800px;
            margin: 50px auto;
            padding: 20px;
            background: #fff;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }



        p.description {
            text-align: center;
            color: #666;
            margin-bottom: 20px;
        }

        /* 表单部分样式 */
        .form-container {
            display: flex;
            flex-wrap: wrap;
            gap: 20px; /* 输入框之间的间距 */
        }

        .form-group {
            flex: 1 1 calc(50% - 20px); /* 默认两列 */
            min-width: 280px; /* 输入框最小宽度 */
            margin-bottom: 10px;
            padding: 0 10px; /* 输入框左右内边距 */
        }

        .form-group label {
            display: block;
            font-weight: bold;
            margin-bottom: 5px;
        }

        .form-group input, 
        .form-group select {
            width: 100%;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 16px;
        }

        .form-group input:focus, 
        .form-group select:focus {
            border-color: #4CAF50;
            outline: none;
        }

        .button-group {
            text-align: center;
            margin-top: 20px;
            width: 100%;
        }

        .button-group button {
            padding: 10px 20px;
            font-size: 18px;
            background-color: #4CAF50;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
        }

        .button-group button:hover {
            background-color: #45a049;
        }

        .output {
            margin-top: 20px;
            padding: 15px;
            background: #f9f9f9;
            border: 1px solid #ddd;
            border-radius: 5px;
        }

        .output h2 {
            font-size: 20px;
            margin-bottom: 10px;
        }

        .output pre {
            background: #eef;
            padding: 10px;
            border-radius: 5px;
            font-family: monospace;
            overflow-x: auto;
        }

        /* 响应式布局 */
        @media (max-width: 600px) {
            .form-group {
                flex: 1 1 100%; /* 在小屏幕上一列显示 */
            }
        }

        /* 功能说明样式 */
        .instructions {
            margin-top: 30px;
            padding: 15px;
            background: #e9f5e9;
            border: 1px solid #4CAF50;
            border-radius: 5px;
        }

        .instructions h3 {
            margin-top: 0;
        }

        .instructions ul {
            padding-left: 20px;
        }