body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.8; margin: 20px auto; max-width: 960px; color: #333; background-color: #f8f8f8; padding: 20px; border-radius: 8px; font-size: 16px; } h1, h2, h3 { color: #2c3e50; font-weight: bold; margin-bottom: 12px; } h1 { font-s…