class="update-notification">
            <div class="update-overlay"></div>
            <div class="update-notification-content">
                <div class="update-notification-header">
                    <h3>新版本更新</h3>
                    <button id="close-update-notification" class="close-notification-btn">
                        <svg viewBox="0 0 24 24" width="20" height="20">
                            <path fill="currentColor" d="M19,6.41L17.59,5L12,10.59L6.41,5L5,6.41L10.59,12L5,17.59L6.