📋 智能报关资料生成器

🇨🇳 中文操作指南

1. 填写基础信息 — 确认发货人/收货人信息（已预填勒拿→JW Singapore），调整合同号、发票号、日期
2. 导入产品清单 — 点击「📤 导入Excel」上传产品表格，或「📥 下载模板」获取标准空表后填写再导入
3. 也可手动添加 — 点击「＋ 添加行」逐行录入产品（品名、数量、单价、品牌、型号）
4. 🧠 AI 智能填充 — 点击后系统自动根据中文品名匹配：HS编码、英文品名、材质、用途。已有内容的行不會被覆盖
5. 人工核对 — AI 填充后请检查 HS 编码 ✓=高置信度 / ⚡=低置信度需确认，可手动修改任意字段
6. 预览汇总 — 点击「👁 预览」查看产品总数和总金额确认无误
7. 一键导出 — 点击「📥 导出Excel」下载5个Sheet的全套报关资料

🇬🇧 English Guide

1. Fill Basic Info — Shipper & receiver are pre-filled. Adjust contract/invoice numbers and dates as needed
2. Import Products — Upload your product list (Excel/CSV) or download the blank template first
3. Manual Entry — Click "+ Add Row" to enter products one by one (name, qty, price, brand, model)
4. 🧠 AI Smart Fill — Auto-match HS codes, English names, materials & usage from Chinese product names. Existing data is preserved
5. Review — Check HS codes: ✓ = high confidence, ⚡ = low confidence (needs verification). Edit any field manually
6. Preview — See total products & amount before exporting
7. Export — Download a 5-sheet Excel workbook

📋 输出文件 / Output (5 Sheets)

• 申报要素 — HS codes + declaration elements per product
• 报关单 — China Customs Export Declaration form
• 发票 — Commercial Invoice (bilingual)
• 箱单 — Packing List (gross/net weight)
• 合同 — Sales Contract