body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1 { color: #FF4500; border-bottom: 3px solid #FFD700; padding-bottom: 10px; }
        h2 { color: #008080; margin-top: 30px; }
        h3 { color: #20B2AA; margin-top: 25px; }
        .logo { font-size: 28px; font-weight: bold; color: #FF4500; text-decoration: none; }
        .nav { background-color: #F5F5F5; padding: 15px; margin-bottom: 20px; display: flex; justify-content: space-between; align-items: center; }
        .mobile-nav-btn { display: none; background: none; border: none; font-size: 24px; cursor: pointer; }
        .download-btn, .login-btn { display: inline-block; padding: 12px 25px; margin: 15px 0; background-color: #4CAF50; color: white; text-decoration: none; border-radius: 5px; }
        .login-btn { background-color: #2196F3; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .tags { margin: 20px 0; }
        .tag { background-color: #e0e0e0; padding: 5px 10px; margin-right: 8px; border-radius: 15px; text-decoration: none; color: #333; }
        .footer { margin-top: 40px; padding-top: 20px; border-top: 2px solid #eee; }
        @media (max-width: 768px) {
            .nav { flex-direction: column; }
            .mobile-nav-btn { display: block; position: absolute; right: 20px; top: 20px; }
            .nav-links { display: none; width: 100%; text-align: center; }
            .nav-links.active { display: block; }
        }