*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{color:#0f172a;background:#fff;font-family:Noto Sans JP,Inter,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}.blog-content h2{color:#0f172a;margin:32px 0 12px;font-size:22px;font-weight:700}.blog-content h3{color:#1e293b;margin:24px 0 8px;font-size:18px;font-weight:700}.blog-content p{color:#334155;margin-bottom:16px}.blog-content ul,.blog-content ol{color:#334155;margin:0 0 16px 24px}.blog-content li{margin-bottom:6px}