(right) down to 甚至包括
even including the following small or unimportant things or people:
e.g.
Amalie was dressed completely in black, right down to black lipstick and a black earring.
Everyone, from the CEO down to the admin assistants, was questioned by the police.
She had the children in mind in choosing colours, wares, right down to bathroom sets in blue for boys and pink for girls.