body { font-family: 'Arial', sans-serif; line-height: 1.6; max-width: 1200px; margin: 0 auto; padding: 20px; color: #333; }
        h1 { color: #FF4500; border-bottom: 3px solid #FFD700; padding-bottom: 10px; }
        h2 { color: #008080; margin-top: 30px; }
        h3 { color: #20B2AA; }
        .logo { font-size: 28px; font-weight: bold; color: #FF4500; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
        .nav { background: #FFD700; padding: 15px; display: flex; justify-content: space-between; align-items: center; }
        .nav-mobile { display: none; }
        .btn { background: #FF4500; color: white; padding: 8px 15px; border-radius: 5px; text-decoration: none; }
        .download-btn { display: inline-block; margin: 20px 0; background: #4CAF50; color: white; padding: 12px 25px; font-size: 18px; }
        .login-btn { display: inline-block; margin: 20px 0; background: #2196F3; color: white; padding: 12px 25px; font-size: 18px; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .tags { margin: 20px 0; }
        .tag { background: #e0e0e0; padding: 5px 10px; margin-right: 5px; border-radius: 3px; }
        .copyright { margin-top: 40px; padding-top: 20px; border-top: 1px solid #ddd; text-align: center; }
        @media (max-width: 768px) {
            .nav { flex-direction: column; }
            .nav-desktop { display: none; }
            .nav-mobile { display: block; margin-bottom: 15px; }
        }