Teen Gothic

Hi everybody. Please tell me how Gothic rock differs from post-punk. So far I have found only two differences: 1) The external image of the performers. 2) The theme of the songs (in post-punk, mainly the theme of loneliness / suffering / self-search / pressure from the outside world. In Gothic rock, the theme of the songs is mostly mystical (vampires, werewolves, ghosts, death, rebirth) Is it true? I will be glad if you add more differences. Thanks everyone