body { font-family: "Hiragino Kaku Gothic ProN", Meiryo, sans-serif; background: #f2f2f2; color: #222; line-height: 1.9; max-width: 760px; margin: 3em auto; padding: 2em; box-shadow: 0 0 12px rgba(0,0,0,0.08); border-radius: 12px; } h2 { border-left: 6px solid #88c0a9; padding-left: 0.6em; margin-to…