Japanese Marketplace E-Commerce Product Listing

{
  "type": "e-commerce product main image mockup",
  "style": "clean Japanese marketplace listing visual, minimal, bright, commercial studio composite",
  "background": {
    "color": "#FFFFFF"
  },
  "product": {
    "category": "small USB rechargeable fan",
    "design": "compact portable desk fan with circular grille, rose-gold accent ring at center and side knob, flat base clip stand, versatile 3-way use (tabletop, clip-on, hanging), head tilts and rotates vertically",
    "main_color": "[white]",
    "variant_count": 4,
    "variants": [
      "white",
      "navy",
      "pink",
      "black"
    ]
  },
  "layout": {
    "canvas": "square composition with generous white negative space",
    "sections": [
      {
        "title": "top-right color lineup",
        "position": "upper right",
        "count": 4,
        "labels": [
          "white",
          "navy",
          "pink",
          "black"
        ],
        "description": "four small product renders arranged in a 2x2 grid"
      },
      {
        "title": "instruction text block",
        "position": "upper middle-right",
        "count": 6,
        "labels": [
          "Amazon商品メイン画像",
          "白背景（#FFFFFF）",
          "台置き・クリップ・吊り下げの3WAY対応USB充電式小型扇風機、上下360度回転可能",
          "中央にホワイトカラーを大きく配置",
          "周囲にネイビー、ピンク、ブラックを小さく配置",
          "4色カラーバリエーション表示"
        ],
        "description": "rounded light gray informational card with six lines of clean Japanese typography"
      },
      {
        "title": "main product card",
        "position": "bottom left",
        "count": 9,
        "labels": [
          "台置き・クリップ",
          "吊り下げ",
          "上下360°回転",
          "3WAY対応",
          "USB充電式",
          "小型扇風機",
          "4",
          "COLOR",
          "white navy pink black"
        ],
        "description": "large rounded-rectangle product card presenting hero product and feature callout badges"
      }
    ],
    "centerpiece": "prominent [white] fan inside bottom card, angled three-quarters right with subtle contact shadow"
  },
  "feature_icons": {
    "count": 3,
    "items": [
      {
        "label": "台置き・クリップ",
        "description": "small circular inset showing fan clipped to wooden desk edge"
      },
      {
        "label": "吊り下げ",
        "description": "small circular inset showing fan suspended from hook above"
      },
      {
        "label": "上下360°回転",
        "description": "small circular inset showing curved 360-degree rotation arrow around fan head"
      }
    ]
  },
  "text": {
    "headline": "[3WAY対応]",
    "subheadline": "[USB充電式]",
    "product_label": "[小型扇風機]",
    "color_count": "4 COLOR"
  },
  "visual_details": {
    "materials": "matte plastic body, metallic rose-gold trim ring, subtle glossy finish on grille",
    "lighting": "high-key commercial studio lighting, soft shadows, crisp silhouette cutout quality",
    "graphics": "teal accent badges, slim gray dividers, polished Japanese marketplace typography",
    "composition_notes": "hero white fan dominates center, navy lower-left, pink upper-right, black lower-right; maintain spacious, premium layout"
  }
}