Japanese 4-Panel Ad Collage

{
  "type": "four-panel Japanese advertising collage",
  "style": "clean modern commercial design, premium lifestyle branding, soft natural lighting, polished product-ad composition, square 2x2 grid with thin dividers",
  "layout": {
    "grid": "2 columns by 2 rows",
    "count": 4,
    "panels": [
      {
        "position": "top-left",
        "category": "skincare serum advertisement",
        "headline": "素肌が、目を覚ます。",
        "subheadline": "うるおい満ちる、透明ハリ肌へ。",
        "brand": "LUNÉA",
        "product_name": "ルネア モイストリペア セラム",
        "details": [
          "Serum",
          "30mL"
        ],
        "badge_count": 1,
        "badges": [
          "発売記念 10%OFF 5.31まで"
        ],
        "feature_icon_count": 4,
        "features": [
          "高保湿 セラミド配合",
          "透明感サポート ナイアシンアミド配合",
          "低刺激にもやさしい 6つのフリー処方",
          "植物由来エキス"
        ],
        "cta_count": 1,
        "cta_labels": [
          "詳しくはこちら"
        ],
        "visual": "a frosted lavender-purple serum bottle with silver dropper cap standing upright in the center-right, glossy translucent gel smear looping behind it, pale pink-beige background, scattered water droplets, elegant serif typography, luxury cosmetic mood"
      },
      {
        "position": "top-right",
        "category": "mobile app productivity advertisement",
        "headline_small": "考える時間を、もっと創造的に。",
        "headline": "アイデアをカタチにする 新しいノート。",
        "brand": "notero",
        "brand_kana": "ノテロ",
        "body": "メモ・タスク・AIサポートをひとつに。思考を整理して、アイデアを加速させる次世代ノートアプリ。",
        "device_count": 1,
        "devices": [
          "black smartphone mockup showing a note and task app interface"
        ],
        "ui_section_count": 3,
        "ui_sections": [
          "プロジェクト管理",
          "タスク",
          "AIからの提案"
        ],
        "feature_chip_count": 3,
        "feature_chips": [
          "AIがアイデアを整理",
          "マルチデバイス対応",
          "オフラインでも使える"
        ],
        "cta_count": 1,
        "cta_labels": [
          "無料で始める"
        ],
        "visual": "white and soft blue gradient layout, bold sans-serif typography with the word 新しい in bright blue, rounded abstract blue wave in the lower right, minimal startup app landing page aesthetic"
      },
      {
        "position": "bottom-left",
        "category": "travel advertisement",
        "headline_small": "まだ見ぬ景色が、きっとあなたを待っている。",
        "headline": "瀬戸内、ゆるり旅。",
        "subheadline": "心ほどける、島時間。",
        "badge_count": 1,
        "badges": [
          "Limited Time Offer 6/1(Mon) - 6/30(Tue) Travel Packages Up to 20% OFF"
        ],
        "icon_card_count": 3,
        "icon_cards": [
          "直行フェリーで楽々 乗り換えなしで島へアクセス",
          "絶景スポット多数 インスタ映え間違いなしのフォトジェニックな旅",
          "ご当地グルメを堪能 新鮮な海の幸や島スイーツも満喫"
        ],
        "cta_count": 1,
        "cta_labels": [
          "おすすめプランを見る"
        ],
        "visual": "bright scenic coastal landscape with vivid blue sea, green islands, distant mountains, white terrace architecture in the foreground, pink flowers at right edge, sunny summer vacation brochure look"
      },
      {
        "position": "bottom-right",
        "category": "cafe seasonal drink advertisement",
        "headline_tag": "Seasonal Limited",
        "headline": "抹茶ティラミスラテ",
        "accent_text": "New!",
        "body": "春の高い抹茶と、なめらかなマスカルポーネのハーモニー。ほろ苦く、やさしい余韻を。",
        "brand": "HARUKA CAFÉ",
        "size_count": 2,
        "sizes": [
          "Regular ¥680 (tax included)",
          "Tall ¥730 (tax included)"
        ],
        "cta_count": 1,
        "cta_labels": [
          "メニューをチェック"
        ],
        "extra_badge_count": 1,
        "extra_badges": [
          "テイクアウトOK モバイルオーダーで待たずに受け取り"
        ],
        "visual": "a clear glass of layered green matcha latte topped with thick tiramisu-like cream and matcha powder, small bowl of matcha, wooden spoon with spilled powder, cream-beige textured background, green leaves entering from the top-right, refined café poster styling"
      }
    ]
  }
}