平台原始字段（来自 API 响应或 CSV 导入）：
{
"add_time": "2024-01-03 14:01:19",
"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=7094358582",
"imgs": [
"https://si.geilicdn.com/pcitem1790250396-6a2d0000018ccd5343600a2104c1_1280_1707.jpg?w=480&h=480&cp=1"
],
"istop": 0,
"item_desc": "「追昆虫的人」冬令营｜“五星昆虫酒店”建筑师们，你们准备好了吗？",
"item_name": "「追昆虫的人」冬令营｜“五星昆虫酒店”建筑师们，你们准备好了吗？",
"item_simple_name": "五星昆虫酒店",
"itemid": "7094358582",
"merchant_code": "",
"price": "1588.00",
"self_create": true,
"seller_id": "1867168977",
"skus": [],
"sold": 0,
"status": 1,
"stock": 0,
"thumb_imgs": [
"https://si.geilicdn.com/pcitem1790250396-6a2d0000018ccd5343600a2104c1_1280_1707.jpg?w=110&h=110&cp=1"
],
"tiaohuo_item": false,
"update_time": "2024-02-05 01:02:30"
}