Worked on the NYCU-Service-Learning/nanao-system repository to deliver a responsive chart layout for the Statistics page, focusing on improving user experience across devices. Utilized CSS and frontend development skills to implement dynamic sizing logic that adjusts the chart container height based on the viewport, applying max-height and max-width constraints to maintain layout stability. Addressed a user experience risk by refining the chart ratio calculation, which prevented excessive page length and reduced unnecessary scrolling. The solution enhanced readability and established a maintainable approach for future responsive improvements, demonstrating attention to both technical detail and practical usability in analytics page design.