body { background: linear-gradient(to bottom, #ffcc70, #ff8c42, #ff5e5b); /* 火のイメージ */ color: #2b2b2b; font-family: "Hiragino Kaku Gothic ProN", Meiryo, sans-serif; line-height: 1.9; padding: 3em 1.5em; max-width: 800px; margin: auto; box-shadow: 0 0 20px rgba(0, 0, 0, 0.1); border-radius: 12px; } h…