(right) down to idiom
甚至包括，就连…也包括在内
even including the following small or unimportant things or people
Amalie was dressed completely in black, right down to black lipstick and a black earring. 阿马莉一身黑色打扮，就连口红和耳坠也是黑色的。
Everyone, from the CEO down to the admin assistants, was questioned by the police. 每个人，上至主管下至秘书，都受到了警方的盘问。