} color: #666; font-weight: bold; font-size: 18px; .guarantee-text { } margin-top: 20px; .guarantee { } box-shadow: 0 0 10px rgba(0,0,0,0.1); border-radius: 10px; border: 1px solid #ddd; padding: 20px; margin: 40px auto; max-width: 800px; .main-content { } font-family: Arial, sans-serif; body {