body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; background-color: #f5f5f5; max-width: 1200px; margin: 0 auto; padding: 20px; }
        header { background-color: #ff473e; color: white; padding: 15px; text-align: center; position: relative; }
        .logo { font-size: 24px; font-weight: bold; letter-spacing: 1px; }
        nav { display: flex; justify-content: center; gap: 20px; margin-top: 10px; }
        nav a { color: white; text-decoration: none; }
        .mobile-nav-btn { display: none; position: absolute; top: 10px; right: 10px; }
        img { max-width: 100%; height: auto; margin: 15px 0; border-radius: 8px; }
        .download-btn, .login-btn { display: inline-block; padding: 12px 25px; margin: 10px 0; background-color: #ff473e; color: white; text-decoration: none; border-radius: 5px; font-weight: bold; }
        h1 { color: #ff473e; margin-bottom: 20px; }
        h2 { border-bottom: 2px solid #ff473e; padding-bottom: 5px; margin-top: 30px; }
        h3 { color: #e03e2e; }
        footer { margin-top: 40px; padding-top: 20px; border-top: 1px solid #ddd; }
        .tags { margin-top: 20px; }
        .tag { background-color: #e0e0e0; padding: 3px 8px; border-radius: 3px; margin-right: 5px; }
        @media (max-width: 768px) {
            .mobile-nav-btn { display: block; }
            nav { flex-direction: column; display: none; }
            nav.active { display: flex; }
            body { padding: 10px; }
        }