Create a brand-new square poster for the Japanese new-signup points campaign.
Accurately present the text “新規契約で2,500ポイント”“2026.08.01-08.31”.
Use cobalt blue, coral orange, mint green, cream white, and violet.
Reorganize horizontal information into a square format, centering on a large 2,500-point coupon and a sign-up card icon.
Add universal gold coins, check marks, and celebratory radiating lines.
All Japanese text must be bold, sharp, and easy to read at a glance.
Do not include any point-branded elements, characters, logos, URLs, QR codes, watermarks, or fine print.
Output a high-quality static PNG image.
