class Book_City_Poster_DNA: def __init__(self)

English Prompt

class Book_City_Poster_DNA:
      def __init__(self):
         self.subject = "[BOOK / NOVEL ]"

         self.parent_styles = {
             "composition": "Exploded-view luxury product poster with floating object layers",
             "atmosphere": "Old literary dust-jacket illustration, poetic, mysterious, tactile",
             "graphic_system": "Brutalist book-fair poster with bold typography and strong negative space",
             "detail_language": "Antique city map engraving and architectural cross-section drawing"
         }

         self.mutations = {
             "semantic_mutation": "The book opens into a miniature city made of chapters, characters, and themes",
             "scale_mutation": "Pages become streets, paragraphs become buildings, margins become rivers",
             "information_mutation": "Add chapter labels, character coordinates, theme callouts, archive stamps",
             "medium_mutation": "Letterpress ink texture with slight paper embossing"
         }

         self.weights = {
             "composition": 0.25,
             "atmosphere": 0.25,
             "graphic_system": 0.20,
             "detail_language": 0.20,
             "mutations": 0.10
         }

      def generate_subject(self):
         subject = """
         Create a vertical poster for [BOOK / STORY CONCEPT].
         Show a book floating open as a premium object, with its cover, spine, pages,
         bookmarks, type, chapter fragments, and symbolic objects separated in an exploded structure.

         Inside the book, reveal a miniature architectural world built from the story’s genre,
         themes, characters, conflicts, and emotional landscape.

         If the book is unspecified, infer a compelling fictional literary concept from the title,
         genre, or mood. Make the world feel specific rather than generic.
         """

         return render(
             subject,
             format="vertical literary poster",
             typography="[TITLE] / [GENRE] / [ARCHIVAL EDITION CODE]",
             output_rules="hero book object, miniature city detail, elegant paper texture, refined labels",
             negative_prompt="no generic fantasy cover, no messy collage, no unreadable text, no watermark"
         )55