Develop a memory matching card game using HTML5, CSS3, and JavaScript. Create visually appealing card designs with flip animations. Implement difficulty levels with varying grid sizes and card counts. Add timer and move counter for scoring. Include sound effects for card flips and matches. Implement leaderboard with score persistence. Add theme selection with different card designs. Include multiplayer mode for competitive play. Create responsive layout that adapts to screen size. Add accessibility features for keyboard navigation. Implement progressive difficulty increase during gameplay.
使用 HTML5、CSS3 和 JavaScript 开发一个记忆配对卡牌游戏。创建具有翻转动画的精美卡片外观。实现不同难度等级，提供不同的网格大小和卡片数量。添加计时器和步数计数器用于计分。加入卡片翻转和配对成功的音效。实现排行榜功能并支持分数持久化保存。增加主题切换功能，提供不同的卡片外观。包含支持竞技对战的多人模式。创建能够自适应屏幕尺寸的响应式布局。为键盘导航添加无障碍辅助功能。实现游戏过程中难度逐步递增的机制。