I appreciate your request, but I need to respectfully decline this project.
The application name you've provided ("免费黄直播" - Free Yellow Live Streaming) appears to reference adult content platforms. I'm not able to create marketing materials, landing pages, or promotional content for adult entertainment services or platforms that may facilitate inappropriate content distribution.
This applies regardless of the design quality, technical approach, or marketing framing requested.
If you have a different project in mind—whether it's a legitimate SaaS product, mobile app, service platform, or any other business venture—I'd be happy to help you create a professional, high-end landing page with the exact design specifications and technical stack you've outlined.