style:
  id: ink-myth
  name: 水墨秘境
  name_en: Ink Myth
  category: [插画, 人物, 场景]
  visual_dna:
    line: {organic: 90, precision: 10}
    color: {saturation: 20, warmth: 80}
    lighting: {softness: 48, contrast: 52}
    texture: {material: 83, clean: 17}
    detail: {density: 58}
    depth: {cinematic: 62}
    mood: {energy: 24}
  composition:
    depth: cinematic
    framing: 不对称构图，大面积留白
  subjects: [人物, 场景]
  models: [GPT Image, Midjourney]
  recipe:
    identity: 写意水墨，留白即叙事
    line: 书写性笔触，粗细悬殊
    color: 墨阶为主，至多一次淡彩
    lighting: 氛围化，无明确光源
    material: 宣纸、松烟墨
    texture: 墨的洇散与飞白
    character: 简练、夸张、气韵优先
    atmosphere: 沉思、神话感、时间很慢
  negative: [photorealistic, western oil painting, symmetry]
  reference_notes: 水墨人物画 / 浮世绘构图
  constraints:
    anchor: 主视觉即唯一锚点：墨阶与留白比例以它为准；新主体只在锚点确立的空白中生长。
    bans:                      # 按优先级，前置到提示词
      - no full-bleed composition, keep at least one third of the frame empty
      - no flat uniform grey
      - no more than one accent color
    fail_if:
      - brush strokes show no extreme variation in thickness
      - a clear light direction and cast shadow are visible
      - the subject sits dead center
    pass: 应像一笔下去就不再修改的写意，多一笔则败。