Create an original square Japanese reward campaign poster in warm yellow, cyan, and navy, with a large bold point amount, a dark information band, and a compact date strip.
Text: “先行キャンペーン”, “500ポイント プレゼント中!!”, “期間限定 2026.08.01-2026.08.31”.
Keep the layout crisp with only two small highlight stars.
Keep all visible text in Japanese. No brand, watermark, QR code, website, English text, Chinese text, or random tiny text.
