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[Subject]
Single female-presenting virtual-human character, young adult look, fair skin, straight blunt pink bob haircut with full bangs, expressive open-mouth speaking face, looking directly at camera. She is positioned in the center of a narrow spacecraft corridor, leaning slightly forward with both hands raised in a conversational gesture (as if explaining something). Body visible from head to upper thighs.

[Clothing & materials]
Blue astronaut-style jumpsuit with visible seams and zip front. On chest and sleeve are mission-style patches/logos including a Japanese flag patch on upper right arm and tech-brand style badges on chest. Fabric appears synthetic, matte with slight sheen at folds. No helmet, no gloves, no additional accessories.

[Props/objects]
- Enclosed space-station interior filled with equipment panels, cables, modules, and mounted devices on both side walls.
- Floor has segmented panels and blue trim lines guiding depth toward background.
- Background includes circular hatch opening and compact hardware units.
- A subtitle line at the bottom reads: "right here on Earth" in yellow text with dark outline.

[Environment]
Futuristic spacecraft/ISS-like module corridor, densely packed with technical components. Indoor artificial lighting from multiple overhead practical lights. High-detail engineering setting, no windows to space visible.

[Composition/Camera]
Horizontal frame close to 4:3. Subject centered in symmetric corridor perspective. Camera at near eye/chest height, slight wide-angle feel, strong leading lines from walls/floor to subject. Medium shot that emphasizes both character and environment context.

[Lighting]
Cool neutral-white interior practical lighting, evenly distributed with mild shadowing under chin and suit folds. Highlights on metallic equipment and cable surfaces; no dramatic theatrical contrast.

[Color palette]
Dominant cool grays and whites from the spacecraft interior, vivid blue jumpsuit as primary accent, pink hair as secondary accent, small red-white-blue patch details.

[Style/Rendering]
High-quality CGI/virtual-human realism blended with photoreal sci-fi environment render; social-media educational frame style. Clean details, moderate sharpness, minimal grain.

[Detail constraints]
Keep exactly one centered pink-bob virtual-human in blue flight suit with visible mission patches and Japanese flag patch. Preserve dense spacecraft corridor equipment on both sides and floor guide lines. Maintain speaking/gesturing pose toward camera. Keep subtitle text "right here on Earth" at bottom. Do not add stars, planets, space windows, or extra astronauts.

Negative prompt:
outdoor spacewalk, helmet visor reflection, multiple astronauts, cockpit window with Earth view, fantasy spaceship, dark horror lighting, anime/cartoon style, low-poly render, blurred background, fashion pose, civilian clothing, clutter-free minimal corridor, watermark, extra captions

Suggested generation parameters:
- Aspect ratio: 4:3 (1024x768 or 1280x960)
- Lens/focal feel: 28-35mm equivalent
- Depth of field: medium-deep (subject and corridor details both readable)
- Steps: 28-40
- CFG / guidance: 5.5-7.0
- Sampler: DPM++ 2M Karras or UniPC
- Style strength (img2img): 0.35-0.55
- Seed suggestion: 803219511

Delta prompt strategy (top 10 drift risks + corrective micro-prompts):
1) Environment becomes generic lab hallway
   - Corrective: "ISS-like spacecraft module with dense side-wall equipment, cables, and hatch"
2) Subject outfit changes from flight suit
   - Corrective: "blue astronaut jumpsuit with mission patches and Japanese flag arm patch"
3) Pose becomes static portrait
   - Corrective: "leaning forward, both hands raised mid-explanation, speaking expression"
4) Hair color/style drifts
   - Corrective: "straight blunt pink bob haircut with full bangs"
5) Subject moves off-center
   - Corrective: "centered subject in symmetrical corridor perspective"
6) Lighting becomes dramatic/cinematic
   - Corrective: "even cool-white practical interior lighting, realistic module illumination"
7) Space windows or stars appear
   - Corrective: "no windows to outer space, enclosed corridor only"
8) Subtitle missing
   - Corrective: "bottom subtitle text: 'right here on Earth', yellow with dark outline"
9) Render style becomes too cartoonish
   - Corrective: "high-detail virtual-human realism with photoreal environment"
10) Extra people or robots appear
   - Corrective: "single subject only, no additional astronauts or assistants"