-blue-500 dark:focus:ring-blue-400 focus:border-transparent dark:bg-gray-700 dark:text-white"
                                          placeholder="请输入您的留言内容"></textarea>
                            </div>
                            <button type="submit"
                                    class="w-full bg-blue-600 hover:bg-blue-700 text-white font-medium py-2 px-4 rounded-lg transition-colors duration-300 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 dark:focus