body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1 { color: #FF6B35; text-align: center; }
        h2 { color: #4A90E2; border-bottom: 2px solid #FF6B35; padding-bottom: 5px; }
        h3 { color: #50C878; }
        .download-btn { display: inline-block; background: #FF6B35; color: white; padding: 10px 20px; margin: 10px 0; border-radius: 5px; text-decoration: none; }
        .login-btn { display: inline-block; background: #4A90E2; color: white; padding: 10px 20px; margin: 10px 0; border-radius: 5px; text-decoration: none; }
        .nav-btn { display: none; background: #333; color: white; padding: 10px; text-align: center; cursor: pointer; }
        .logo { font-size: 28px; font-weight: bold; color: #FF6B35; text-align: center; margin: 20px 0; }
        nav { background: #333; padding: 10px; }
        nav a { color: white; text-decoration: none; margin: 0 15px; }
        .mobile-nav { display: none; }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-nav { display: block; }
            .nav-btn { display: block; }
            body { padding: 10px; }
        }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .tags { margin: 20px 0; }
        .tag { background: #eee; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 3px; }
        footer { margin-top: 30px; padding-top: 20px; border-top: 1px solid #eee; }