請問這句英文所使用到的文法與句子結構的組成？

1，本句主架構是由複合句(二個獨立子句以and 連結)，即(Humans are complicated,一個子句) and( the details of maintaining healthy, positive relationships, as we all know, can get tricky.另一個子句)，句子裏〈, as we all know,係贅字，刪除不影響句意〉

2，本句Humans are complicated, and the details of maintaining healthy, positive relationships can get tricky.是否更清楚些

Humans are complicated-------S+v to be=are , main clause;
the details to------phrase
maintaining healthy, positive relationships-------gerund=to infinitive=to maintain
can get tricky----- co-ordinate adv clause of manner, of reason/cause, of comparison/contrast, of condition     to main clause
as we all know------adv phr of manner, of comparison/contrast, of condition    to "can get"