Corporate Info Website Build

I need a clean, professional website that presents my company clearly to clients and partners. The site should load fast, adapt gracefully to mobile devices, and be easy for my team to update later through a mainstream CMS such as WordPress, Webflow, or another platform you recommend... (Budget: €250 - €750 EUR, Jobs: CMS, HTML, PHP, Web Design, Web Development, Website Design, Website Optimization, WordPress)