body { font-family: "Hiragino Kaku Gothic ProN", "メイリオ", sans-serif; background-color: #f9f9f9; color: #333; line-height: 1.8; padding: 2rem; max-width: 800px; margin: auto; } .post { background-color: #ffffff; padding: 2rem; border-radius: 12px; box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05); } .post p…
