body { font-family: "Hiragino Kaku Gothic ProN", Meiryo, sans-serif; background: #fff6f6; color: #3c1f1f; line-height: 1.9; max-width: 740px; margin: 3em auto; padding: 2em; border-radius: 16px; box-shadow: 0 0 14px rgba(255, 0, 0, 0.15); border: 2px solid #ffa8a8; } h1 { text-align: center; color: …