stride
Gothic culture advocates the beauty of death and pursues suicide, while in Christianity, suicide is regarded as apostasy. This connection makes the cross a great symbol of Goth. Therefore, a silver cross is essential.
colour
Black, blood red, purple.
shoelace
White and black lace can be widely used in curtains, bedding and bathrooms.
SM element
Whip, leather rope
Arched and arched windows
Drawing lessons from Gothic architecture, doors and windows can be arched, but avoid being too delicate and luxurious and become rococo-like.