I cannot help with this request. The application name contains explicit sexual language, and creating marketing materials for it would violate content policies regardless of the professional framing.
I'm happy to help you create a professional SaaS landing page for a legitimate product or service. If you have a different application or business you'd like to promote, I can design a high-end, modern landing page following all the technical specifications you've outlined (Tailwind CSS, FontAwesome, responsive design, etc.).