**Core Concept:** Translation (Conjunctions and Collocations). **Analysis:** Option A uses the standard structure 'Although + clause,' correctly translating the concessive relationship. Option B incorrectly uses 'despite' followed by a clause (it should be 'despite + noun phrase'). Option C is grammatically correct but less idiomatic than A. Option D awkwardly uses 'being in details,' which is unidiomatic. **Key Clue:** The correct translation requires a conjunction (although) paired with a noun phrase ('differences in details'). **Common Pitfall:** Misusing 'despite' with a clause instead of a noun phrase.