body { font-family: 'Arial', sans-serif; line-height: 1.6; max-width: 1200px; margin: 0 auto; padding: 20px; color: #333; }
        h1 { color: #e74c3c; text-align: center; }
        h2 { color: #2980b9; margin-top: 30px; }
        h3 { color: #27ae60; }
        .download-btn { display: block; background: #e74c3c; color: white; padding: 15px; text-align: center; margin: 20px 0; border-radius: 5px; text-decoration: none; font-weight: bold; }
        .login-btn { display: block; background: #2980b9; color: white; padding: 15px; text-align: center; margin: 20px 0; border-radius: 5px; text-decoration: none; font-weight: bold; }
        .mobile-nav { display: none; background: #333; color: white; padding: 10px; text-align: center; cursor: pointer; }
        .nav-links { display: flex; justify-content: space-around; background: #333; padding: 15px 0; }
        .nav-links a { color: white; text-decoration: none; }
        .nav-links .logo { font-size: 24px; font-weight: bold; color: #e74c3c; }
        @media (max-width: 768px) {
            .nav-links { display: none; flex-direction: column; }
            .mobile-nav { display: block; }
            .nav-links.active { display: flex; }
            body { padding: 10px; }
        }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .footer { margin-top: 40px; padding: 20px; background: #f5f5f5; text-align: center; }
        .tags { margin: 20px 0; }
        .tags a { background: #e0e0e0; padding: 5px 10px; margin: 0 5px; border-radius: 3px; text-decoration: none; color: #333; }