{"product_id":"258729","title":"フーリエ級数","description":null,"brand":"岩波書店","offers":[{"title":"Default Title","offer_id":45920801554690,"sku":null,"price":3100.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/2312\/7810\/files\/258729_1740812677.jpg?v=1740954708","url":"https:\/\/shop.iwanami.co.jp\/products\/258729","provider":"岩波書店","version":"1.0","type":"link"}