body { font-family: 'Segoe UI', 'Meiryo UI', sans-serif; line-height: 1.6; color: #333; max-width: 1000px; margin: 0 auto; padding: 20px; } h1 { color: #dd830c; border-bottom: 2px solid #dd830c; padding-bottom: 10px; margin-top: 30px; } h2 { color: #dd830c; margin-top: 25px; border-left: 5px solid #…