How to decide the world cup champion and runner-up?

A: 1, 32 teams are divided into A, B, C, D, E, F, G, H? Group 8, group stage, the top two in each group before promotion16; (The rest can refer to pictures)

2.(A, B)(C, D)(E, F)(G, H) The first place in Group A touches the second place in Group B, and in the same way, Group B touches the second place in Group A to decide the top eight.

3. The top 8 teams or the top teams of (a, B)(C, D)(E, F)(G, h) compete and decide the top 4.

4. The top four teams {(A, B)(C, D)}{(E, F)(G, H)} play against two scenic spots teams.

5. Two scenic teams compete for the first and second place, and two negative teams compete for the third and fourth place. Decide the champion and ranking