Three.js Landing Page Website Build-1 -- 2

I have a simple landing-page concept that needs to be turned into a functional website. The stack is very light—plain HTML5, modern CSS, vanilla JavaScript, and a small Three.js touch for visual flair.
The previous developer only wasted my time.
I need a developer capable of completing the project accurately.
They must possess deep knowledge of Three.js and a strong sense of design.
What I need built
• A hero section that loads a basic Three.js animation I’ll specify (simple geometry, no advanced shaders).
• A clean product-listing grid fed by a JSON array I’ll supply.
• A JavaScript search field that filters those products in real time on the client side.

I’ll hand over the copy, images, color palette, and a rough layout wireframe. You focus on writing tidy, well-commented code, keeping libraries to the absolute minimum, and making sure the page renders consistently across modern browsers. Once you send back zipped source files and a quick walkthrough video or screenshots confirming everything works locally, the project is complete.
It currently resembles the provided image.
Sample Link: https://www.hellomobility.jp/
I will provide the design separately.