Nano Banana Pro 详细日历设计提示

meta:
  title: "CALENDAR 2026 — {argument name="month name" default="FEBRUARY"} (Winter Alpine / Flat Teal Splitter / Sundays Red)"
  purpose: "image_generation_prompt"
  language_in_image: "English"
  output: "single calendar poster"
  quality: "commercial, crisp typography, no artifacts"
  strict_text_and_dates: true

canvas:
  size: { width: 2048, height: 1536 }
  aspect: "4:3 landscape"
  base_bg: "#FFFFFF"
  safe_margin_pct: 6

style:
  keywords:
    - "premium modern minimal"
    - "corporate clean"
    - "cool winter calm"
    - "high legibility"
  palette:
    deep_teal: "#083D57"
    teal: "#0E7890"
    mid_teal: "#6A90A0"
    navy: "#0B2433"
    text_dark: "#2C2F33"
    border_light: "#D7DDE2"
    icy: "#EAF2F6"
    saturday_blue: "#1F7FA0"
    sunday_red: "#C93B3B"
    holiday_red: "#C93B3B"
  typography:
    font: "Noto Sans (fallback: Helvetica/Arial)"
    rules:
      - "no warping, no jitter, no random glyphs"
      - "high anti-aliasing + optical kerning"

composition:
  layout:
    - "Left ~52%: winter alpine photo inside a large smooth curved mask"
    - "Right ~48%: clean white negative space with month + calendar card"
    - "Bottom-left: deep teal layered wave band hosting 'CALENDAR 2026'"
  photo_left:
    subject:
      - "snowy mountains, conifer forest, calm valley, overcast sky"
      - "no people, no buildings, no animals, no text"
    grading: "cool-neutral, slightly desaturated, moderate contrast, preserve snow detail"
    overlay: "very subtle snow/bokeh particles mainly over photo area (keep right area clean)"
  divider_splitter:
    shape: "thin smooth curved band near the boundary of photo/white"
    thickness: "5–7% of canvas height"
    fill_gradient: { from: "#083D57", to: "#0E7890" }
    optional_rim:
      enabled: true
      thickness: "1–2% of canvas height"
      fill_gradient: { from: "#EAF2F6", to: "#FFFFFF" }
    flat_rules:
      - "no 3D, no bevel, no inner shadow, no glass, no facets, no specular"
  bottom_waves:
    coverage: "bottom 22–28% of canvas"
    layers:
      - { gradient: { from: "#083D57", to: "#0B2433" }, opacity: 1.0 }
      - { gradient: { from: "#0E7890", to: "#6A90A0" }, opacity: 0.55 }
      - { gradient: { from: "#EAF2F6", to: "#FFFFFF" }, opacity: 0.45 }
    rule: "flat premium (no facets/bevel), minimal noise only to prevent banding"

text_blocks:
  month_number:
    text: "2"
    position: "top-right of right area"
    style: { weight: 800, color: "#0E7890", size: "very large" }
  month_label:
    text: "FEBRUARY"
    position: "upper-center of right area"
    style: { weight: 800, color: "#2C2F33", size: "large", tracking: "slightly wide" }
  footer_left:
    position: "bottom-left on teal wave band"
    lines:
      - { text: "CALENDAR", style: { weight: 700, color: "#FFFFFF", size: "medium" } }
      - { text: "2026",     style: { weight: 900, color: "#FFFFFF", size: "very large" } }
    alignment: "left"

calendar_card:
  placement: "center-right"