Design a captivating and sophisticated digital illustration for the main page of a DEFI service website, focusing on the themes of crypto loans, staking, and swapping. The image should be a vibrant and dynamic representation of the DEFI ecosystem, highlighting the interconnectivity and fluidity of these services. Visualize crypto loans through symbols of digital currencies and abstract financial agreements. Illustrate staking by showcasing digital assets being locked in or engaged in a network, possibly represented by interconnected nodes or secure vaults. For swapping, depict the seamless exchange of different cryptocurrencies, using symbols or abstract representations of various coins and tokens. Ensure that each element - loans, staking, and swapping - is distinct yet part of a cohesive digital finance landscape. The color palette should be modern and tech-oriented, with blues, greens, and metallics to convey a sense of security, trust, and innovation. The overall composition should be balanced and engaging, inviting viewers to explore the world of DEFI services --ar 16:9 --s 250