平台原始字段（来自 API 响应或 CSV 导入）：
{
"add_time": "2024-05-23 16:06:23",
"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=7239865815",
"imgs": [
"https://si.geilicdn.com/pcitem1790250396-355d0000018fa4565c840a23111a_1080_667.jpg?w=480&h=480&cp=1"
],
"istop": 0,
"item_desc": "夏令营招募｜宝藏路线，海南深度小众赶海，这个暑假值得一去【五天四夜】",
"item_name": "夏令营招募｜宝藏路线，海南深度小众赶海，这个暑假值得一去【五天四夜】",
"item_simple_name": "夏令营招募，一起去海南！",
"itemid": "7239865815",
"merchant_code": "",
"price": "4988.00",
"self_create": true,
"seller_id": "1867168977",
"skus": [],
"sold": 0,
"status": 1,
"stock": 0,
"thumb_imgs": [
"https://si.geilicdn.com/pcitem1790250396-355d0000018fa4565c840a23111a_1080_667.jpg?w=110&h=110&cp=1"
],
"tiaohuo_item": false,
"update_time": "2024-08-11 00:42:11"
}