Banner de lanzamiento de app fitness generado con IA

16:9 horizontal format, photorealistic real-person centered advertising banner for a fitness app launch. One female subject, 35–40 years old, athletic but natural body type, smiling confidently while looking slightly upward, wearing a fitted pastel pink workout tank top and black leggings, holding a smartphone showing the app interface. Background: bright, airy home gym with large windows, white walls, soft natural light from the side, clean minimal decor, a yoga mat and water bottle visible. Tone: bright, fresh, white-to-off-white base with pastel accent colors, natural lighting, wide margins, clean and hygienic feel. Title at top center: large bold white text with dark outline: 「汗が未来を変える」. Sub-headline bottom center: slightly smaller, also white with outline: 「新しい自分に、今日から。」. Layout: subject slightly right of center, facing left, text on left side and center. No logos, URLs, watermarks, or extra English text. Ensure photorealistic skin texture, DSLR-quality sharpness, natural shadows.