body { font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif; line-height: 1.8; padding: 20px; color: #333; } h1 { text-align: center; color: #1a73e8; border-bottom: 2px solid #1a73e8; padding-bottom: 10px; font-size: 28px; } h2 { color: #1e88e5; bord…