I've fixed the PC display issue by removing the <span className="block"> wrapper from the Japanese title on desktop. Now "東京国際ボードゲーム交流会" will display as a single line on PC screens instead of breaking into multiple lines, while maintaining the mobile-responsive behavior.

I've systematically reduced text sizes throughout the entire site. The main changes include smaller hero titles, reduced section headings from text-4xl to text-3xl, body text from text-lg to text-base, and button text sizes. This creates a more compact and refined appearance while maintaining readability across all devices.