平台原始字段（来自 API 响应或 CSV 导入）：
{
"add_time": "2024-06-01 22:30:57",
"barcode": "",
"biz_type": 3,
"cates": [
{
"cate_id": 150904762,
"cate_name": "漫四季",
"sort_num": 15
}
],
"chain_store_sync": false,
"cost_price": "",
"fx": 0,
"fx_fee_rate": "0.0",
"h5Url": "https://weidian.com/item.html?itemID=7242071406",
"imgs": [
"https://si.geilicdn.com/pcitem1790250396-3f4f0000018fa482d79a0a20e672_1080_1440.jpg?w=480&h=480&cp=1"
],
"istop": 0,
"item_desc": "「追昆虫的人」三天两夜夏令营｜这个暑假出发天目山追昆虫啦！山野觅虫+溯溪戏水+天目山漂流+星空烧烤",
"item_name": "「追昆虫的人」三天两夜夏令营｜这个暑假出发天目山追昆虫啦！山野觅虫+溯溪戏水+天目山漂流+星空烧烤",
"item_simple_name": "三天两夜夏令营天目山追昆虫的人",
"itemid": "7242071406",
"merchant_code": "",
"price": "2388.00",
"self_create": true,
"seller_id": "1867168977",
"skus": [],
"sold": 3,
"status": 1,
"stock": 0,
"thumb_imgs": [
"https://si.geilicdn.com/pcitem1790250396-3f4f0000018fa482d79a0a20e672_1080_1440.jpg?w=110&h=110&cp=1"
],
"tiaohuo_item": false,
"update_time": "2024-08-17 00:41:52"
}