공익·캠페인 포스터 (환경·건강·문화)

プロンプト原文

[Input]
- language: Korean
- output_size: 1024x1536

[Purpose]
Korean public-interest campaign poster for environment/health/culture awareness, print-ready vertical layout and SNS-shareable editorial poster.
A credible civic communication piece with an action-focused message, enriched with real poster information such as campaign period, participation details, venue, sponsor area, contact line, QR-style participation block, and decorative campaign graphics.

[Composition]
- Main headline area: {핵심 메시지} placed in the upper-middle 30% of the poster, set as the largest text element with strong visual hierarchy.
- Supporting subject area: warm editorial illustration cluster around the headline using tumbler, reusable cup, plant, small earth motif, recycling arrows, and paper-cut leaf graphics.
- Top identity area: {기관/주최} aligned near the top, compact and official, with {포스터번호} and {캠페인 기간} shown as realistic poster metadata.
- Event information area: {행사일시}, {행사장소}, and {참여안내} presented in a clear civic-information block with small pictogram markers.
- Lower action area: {실천 방법} presented as 3 short, easy-to-scan lines with icon-like spacing.
- Footer CTA area: {CTA} anchored at the bottom with a clean call-to-action strip, QR-style square, contact line {문의}, and sponsor/cooperation text {후원/협력}.
- Background treatment: soft cream or beige paper-like surface with visible recycled-paper grain, tiny fiber speckles, muted green, sage, and soft blue accents.
- Framing direction: vertical poster with centered composition, print-safe crop guides implied by the layout, and a polished public-institution poster finish.

[3. CORE STRUCTURE]
1. Top header zone (top 10–15%): set {기관/주최} in a compact official style, add {포스터번호} on the opposite side, and place {캠페인 기간} beneath with a thin divider rule.
2. Campaign title zone (upper 16–28%): place {캠페인 주제} as the campaign title, large and bold, using a clean sans-serif hierarchy and comfortable line spacing.
3. Key message zone (center 30–50%): render {핵심 메시지} in the largest font size, visually emphasized with solid contrast, surrounded by editorial illustration accents that support the message.
4. Illustration and decorative graphics zone (center and side areas): add semi-flat motifs of a tumbler, leaf, reusable cup, small globe, recycling arrows, water droplet, and circular badge reading {슬로건태그}; use rounded shapes and gentle overlaps like a contemporary civic poster.
5. Event details zone (lower-middle 52–66%): show {행사일시}, {행사장소}, and {참여안내} in three stacked information rows, each with a simple calendar, map-pin, or ticket/participation icon.
6. Action list zone (lower-middle 66–78%): show {실천 방법} as concise bullet-style lines with small pictogram markers, evenly spaced and easy to read at a glance.
7. CTA and sponsor zone (bottom 80–94%): place {CTA} inside a footer band or button-like label, include a QR-code-like square labeled {QR라벨}, show {문의}, and add a sponsor/cooperation strip reading {후원/협력}.
8. Production detail zone (bottom edge): include small page/poster metadata such as {포스터번호}, recycled paper texture, tiny registration marks, and a fine divider line for a realistic printed poster impression.

[4. STYLE RULES]
- Typography: Pretendard or Noto Sans KR for the main text, Bold 700–800 for headlines, Medium 500–600 for supporting text, with headline size roughly 72–110px and body size 26–38px.
- Color palette: forest green #4F7A5B, sage #A7B89A, beige #F3EBDD, soft blue #C7DDE8, charcoal #2F3437, with occasional warm yellow #E8C96A for small badges.
- Border/shadow: use soft civic-poster depth such as a subtle shadow 0px 4px 12px at 12% opacity for the main message card or CTA band when needed.
- Graphic style: vector-like editorial illustration with rounded shapes, thin clean outlines, low-detail symbolic icons, tactile paper grain, small sticker labels, and neat divider rules.
- Information design: event details, participation notice, sponsor strip, QR block, and contact line should feel like authentic Korean public campaign poster content rather than placeholder text.

[5. VISUAL STYLE]
- Camera / lens: editorial poster design look, equivalent to a clean flat graphic composition rather than photography; if a source-photo feel is needed, emulate an 85mm f/1.4 shallow-depth portrait crop for any human-free design references.
- Lighting: soft diffused studio lighting feel, even illumination with no harsh highlights, as if lit by a large softbox from upper-left.
- Color grade: muted natural civic palette with warm cream, sage green, soft blue, and restrained charcoal contrast.
- Print finish: matte recycled paper texture, fine ink grain, crisp Korean typography, slight risograph-like warmth in the green and beige areas.

[6. MOOD]
Institutional campaign poster — a Seoul civic design office meets a Kinfolk editorial spread, with the clarity of a modern museum public-information graphic and the approachable warmth of a neighborhood environmental festival notice.

[7. CRITICAL]
- Korean text accuracy: 반드시 아래 문구가 정확히 표시되어야 함.
  - "플라스틱 줄이기, 작은 한 걸음"
  - "서울시 환경캠페인 본부"
  - "텀블러 한 개로 일년에 365개의 일회용컵을 줄입니다"
  - "텀블러 휴대 / 카페 음료 텀블러 할인 활용 / 분리 배출"
  - "seoul-eco.kr 캠페인 참여"
  - "2026.06.01–06.30"
  - "매주 토요일 11:00–17:00"
  - "서울숲 커뮤니티 광장"
  - "참가비 무료 · 현장 참여 가능"
  - "협력: 동네카페연합 · 시민자원순환센터"
  - "문의 02-120"
- Layout invariant: the main message must be the largest text and remain highly legible at poster distance.
- Illustrations and decorative graphics must stay secondary to the typography and must never cover required Korean text.
- Keep all text horizontal and properly spaced; avoid warped, broken, or decorative unreadable Korean characters.

[8. 🚫 PROHIBITED]
- Fake official seals / certifications
- Broken Korean characters
- Celebrity composites or recognizable celebrity likenesses
- English replacement of the required Korean campaign text