平台原始字段（来自 API 响应或 CSV 导入）：
{
"add_time": "2025-03-14 21:32:21",
"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=7425218170",
"imgs": [
"https://si.geilicdn.com/pcitem1790250396-0dbf000001956e805ac00a2304aa_4032_3024.jpg?w=480&h=480&cp=1"
],
"istop": 0,
"item_desc": "【漫农语侬】漫享生活礼（春）专享活动",
"item_name": "【漫农语侬】漫享生活礼（春）专享活动",
"itemid": "7425218170",
"merchant_code": "",
"price": "0.10",
"self_create": true,
"seller_id": "1867168977",
"skus": [],
"sold": 0,
"status": 2,
"stock": 0,
"thumb_imgs": [
"https://si.geilicdn.com/pcitem1790250396-0dbf000001956e805ac00a2304aa_4032_3024.jpg?w=110&h=110&cp=1"
],
"tiaohuo_item": false,
"update_time": "2025-04-27 00:49:34"
}