Why was Invincible's fuel management so elaborate?

How elaborate was Invincible's fuel management, and how much came from CVA-01?

The explanation emphasizes extensive fuel-safety engineering driven by a past carrier fire. It does not quantify a direct transfer from CVA-01.

British carrier fuel systems are described as unusually elaborate because aviation-fuel fires had caused a carrier loss. The comparison comes from a fuel-system specialist who had examined the Queen Elizabeth class and remarked on its extensive engineering. It illustrates a continuing design priority rather than establishing that the specialist had worked on Invincible. The motive was to prevent a remembered failure from recurring. The exchange does not establish how much of Invincible's system came directly from CVA-01.