Japanese SaaS AI Prompt Manager Ad Banner

A square 1:1 Japanese promotional social media banner for [BananaNL], an AI prompt management SaaS. Soft lavender-to-white gradient background with a clean, modern SaaS aesthetic, rounded UI cards, and subtle drop shadows. Top Left: A cute minimalist white ghost mascot icon with two black eyes and a smiling mouth. Beside it, the brand name "[BananaNL]" in bold dark navy typography, with the smaller subtitle "プロンプトとAI画像を、ひとつに。" in purple directly below. Top Right: A rounded purple pill badge with white text on three lines: "ChatGPT / Gemini", "Grok / NotebookLM", "対応！". Center Left: A prominent Japanese headline in large bold typography across two lines: "AI作業を、" in dark navy, and "ひとつに。" in vivid purple. A curved purple arrow swoops from the headline toward the service integration cards on the right. Center/Lower Center: A floating browser application window mockup with rounded corners and a sleek light UI. Inside, a prompt gallery displaying 6 thumbnail preview cards in a 2x3 grid: 1) flat corporate illustration, 2) blue ink notebook sketch, 3) cute claymation stop-motion scene, 4) black chalkboard illustration, 5) colorful graphic typography design, 6) monochrome manga panel. Top window bar shows tab labels: "Collection", "今日", "プレミアム", "ビジネス", and "人気300". Below the thumbnails, subtle UI text reads "人気プロンプト 30件 + プロンプト300" and footer links "FAQ | BananaX Prompt | BananaX Biz". A small yellow tag on the lower-left corner reads "AI Chat連携が人気→". Right Side: Exactly four stacked white rounded cards connected to the app mockup by a faint vertical dotted line, listing supported AI services: 1) ChatGPT with green logo, 2) Gemini with blue sparkle icon, 3) Grok with black slash circle icon, 4) NotebookLM with black arc icon. Feature Strip: Across the lower middle above the footer, a translucent white rounded bar containing four equal feature columns with purple icons and Japanese text: 1) Bookmark icon: "保存" / "お気に入りのプロンプトを保存" 2) Magnifying glass icon: "検索" / "必要なプロンプトをすぐに見つけられる" 3) Image icon: "画像管理" / "AIで作った画像をまとめて管理" 4) Sync arrows icon: "再利用" / "複数のAIサービスでシームレスに活用" Bottom CTA Footer: A full-width deep purple bar. On the left, the small white ghost mascot next to bold white text "無料で始められます！". On the right, a bright yellow pill button featuring navy text "1日3回まで無料" with subtext "シェアでさらに5回追加！" and small yellow burst accents.