body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1, h2, h3 { color: #e74c3c; }
        h1 { font-size: 2.5em; }
        h2 { font-size: 2em; margin-top: 30px; }
        h3 { font-size: 1.5em; }
        .logo { font-size: 2em; font-weight: bold; color: #e74c3c; text-decoration: none; }
        nav { background: #f8f8f8; padding: 10px; margin-bottom: 20px; }
        nav ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; }
        nav ul li { margin-right: 15px; }
        nav ul li a { text-decoration: none; color: #333; }
        .mobile-menu { display: none; cursor: pointer; }
        @media (max-width: 768px) {
            .desktop-menu { display: none; }
            .mobile-menu { display: block; }
            .logo { font-size: 1.5em; }
        }
        .download-btn, .login-btn { 
            display: inline-block; 
            padding: 12px 24px; 
            margin: 15px 0; 
            background: #e74c3c; 
            color: white; 
            text-decoration: none; 
            border-radius: 5px; 
            font-weight: bold;
        }
        .image-container { margin: 20px 0; text-align: center; }
        .image-container img { max-width: 100%; height: auto; }
        .tags { margin: 20px 0; }
        .tag { 
            display: inline-block; 
            background: #f0f0f0; 
            padding: 5px 10px; 
            margin: 5px; 
            border-radius: 3px; 
            text-decoration: none; 
            color: #333;
        }
        footer { margin-top: 40px; padding: 20px; background: #f8f8f8; }