body { font-family: 'Arial', sans-serif; line-height: 1.6; margin: 20px; } h2 { color: #333; border-bottom: 2px solid #333; padding-bottom: 5px; margin-top: 30px; } p { color: #555; margin-top: 15px; } blockquote { color: #777; border-left: 2px solid #777; padding-left: 15px; margin: 15px 0; } 岸田首…