body { background: #f8f5fb; /* やさしい紫がかったグレー */ font-family: "Hiragino Kaku Gothic ProN", Meiryo, sans-serif; line-height: 1.9; color: #342b3a; /* ナスっぽい濃い紫 */ padding: 2em; } .container { max-width: 720px; background: white; padding: 2.5em; margin: auto; box-shadow: 0 0 10px rgba(0,0,0,0.05); border-…