ChengCheng Li contributed to cse110-sp25-group13 by enhancing both user experience and code quality across two repositories. In The_club_triton, ChengCheng implemented dynamic asset loading to support deployment on GitHub Pages and local environments, improved deck-building gameplay with flexible card management, and unified navigation through a shared component. The work involved extensive use of JavaScript, HTML, and CSS, with attention to responsive design and maintainable code formatting. For the main group repository, ChengCheng enriched team documentation, standardized branding assets, and improved onboarding materials. The contributions demonstrated a thoughtful approach to both frontend development and collaborative project documentation.