body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1 { color: #FF6600; text-align: center; margin-bottom: 30px; }
        h2 { color: #0088CC; border-bottom: 2px solid #FF6600; padding-bottom: 5px; margin-top: 30px; }
        h3 { color: #555; }
        .logo { font-size: 28px; font-weight: bold; color: #FF6600; text-align: center; margin: 20px 0; }
        nav { background: #FF6600; padding: 10px; text-align: center; }
        nav a { color: white; margin: 0 15px; text-decoration: none; font-weight: bold; }
        .mobile-nav-btn { display: none; background: #0088CC; color: white; border: none; padding: 10px; cursor: pointer; }
        .download-btn, .login-btn { display: inline-block; background: #0088CC; color: white; padding: 12px 25px; margin: 15px 0; text-decoration: none; border-radius: 5px; font-weight: bold; }
        .image-container { text-align: center; margin: 25px 0; }
        img { max-width: 100%; height: auto; border-radius: 8px; }
        footer { background: #333; color: white; padding: 20px; text-align: center; margin-top: 40px; }
        .tag { background: #FF6600; color: white; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 3px; }
        @media (max-width: 768px) {
            .mobile-nav-btn { display: block; }
            nav { display: none; }
            .nav-active { display: block; }
        }