diff --git a/inquiry-agent/agent/policy/sea_text_flow.py b/inquiry-agent/agent/policy/sea_text_flow.py
index b5db649..0cb52c2 100644
--- a/inquiry-agent/agent/policy/sea_text_flow.py
+++ b/inquiry-agent/agent/policy/sea_text_flow.py
@@ -165,6 +165,9 @@ class SeaTextInquiryFlow(AirTextInquiryFlow):
                 inbound_raw=inbound_raw,
             )
 
+        from agent.schema.sea_options import harvest_sea_class
+
+        facts = harvest_sea_class(text, facts)
         check = validate_required_fields(facts=facts, business_line="SEA")
         facts = dict(check["facts"])
         tms_ready = assemble_sea_query(facts)
diff --git a/inquiry-agent/tests/test_attachment_inquiry.py b/inquiry-agent/tests/test_attachment_inquiry.py
index 76870b3..096e444 100644
--- a/inquiry-agent/tests/test_attachment_inquiry.py
+++ b/inquiry-agent/tests/test_attachment_inquiry.py
@@ -47,6 +47,8 @@ SEA_ORAL = """海运
 货量：20吨
 整柜或拼柜：整柜
 箱型箱量：1x40HQ
+贸易条款：FOB
+运输分类：Port to Port
 """
 
 
diff --git a/inquiry-agent/tests/test_image_inquiry.py b/inquiry-agent/tests/test_image_inquiry.py
index 15293e0..bc350be 100644
--- a/inquiry-agent/tests/test_image_inquiry.py
+++ b/inquiry-agent/tests/test_image_inquiry.py
@@ -45,6 +45,8 @@ SEA_ORAL = """海运
 货量：20吨
 整柜或拼柜：整柜
 箱型箱量：1x40HQ
+贸易条款：FOB
+运输分类：Port to Port
 """
 
 LAND_ORAL = """陆运
diff --git a/inquiry-agent/tests/test_sea_text_inquiry.py b/inquiry-agent/tests/test_sea_text_inquiry.py
index a8aa4b4..9b3aebb 100644
--- a/inquiry-agent/tests/test_sea_text_inquiry.py
+++ b/inquiry-agent/tests/test_sea_text_inquiry.py
@@ -40,6 +40,8 @@ COMPLETE_SEA = {
     "货量": "20吨",
     "整柜或拼柜": "整柜",
     "箱型箱量": "1x40HQ",
+    "贸易条款": "FOB",
+    "运输分类": "Port to Port",
 }
 
 
@@ -257,7 +259,44 @@ class SeaTextInquiryTests(unittest.TestCase):
         self.assertIn("其他", text)
         self.assertIn("贸易条款：FOB", text)
 
-    def test_complete_sea_inquiry_card_uses_seven_fields(self) -> None:
+    def test_incomplete_without_trade_terms_does_not_create_ticket(self) -> None:
+        facts = dict(COMPLETE_SEA)
+        facts.pop("贸易条款")
+        phase = self.flow.on_text(
+            sender_id="s-miss",
+            text="海运缺条款",
+            reply=self._reply,
+            injected_facts=facts,
+            injected_mode="SEA",
+        )
+        self.assertEqual(phase, "clarify")
+        self.assertIn("贸易条款", "\n".join(self.replies))
+        self.assertFalse((self.flow.session_of("s-miss").work_order_no or "").startswith("WO"))
+
+    def test_harvest_class_from_reply_then_quotes(self) -> None:
+        first = dict(COMPLETE_SEA)
+        first.pop("运输分类")
+        phase = self.flow.on_text(
+            sender_id="s-class",
+            text="先缺分类",
+            reply=self._reply,
+            injected_facts=first,
+            injected_mode="SEA",
+        )
+        self.assertEqual(phase, "clarify")
+        self.replies.clear()
+        phase = self.flow.on_text(
+            sender_id="s-class",
+            text="Port to Port",
+            reply=self._reply,
+            injected_mode="SEA",
+        )
+        self.assertEqual(phase, "wait_collab")
+        joined = "\n".join(self.replies)
+        self.assertIn("运输分类：Port to Port", joined)
+        self.assertIn("贸易条款：FOB", joined)
+
+    def test_complete_sea_inquiry_card_uses_ten_fields(self) -> None:
         phase = self.flow.on_text(
             sender_id="s1",
             text="海运完整",
@@ -273,6 +312,8 @@ class SeaTextInquiryTests(unittest.TestCase):
         self.assertIn("货物数量：20吨", joined)
         self.assertIn("整柜或拼柜：整柜", joined)
         self.assertIn("箱型箱量：1x40HQ", joined)
+        self.assertIn("贸易条款：FOB", joined)
+        self.assertIn("运输分类：Port to Port", joined)
         self.assertIn("正在查询TMS报价", joined)
         self.assertNotIn("件数：", joined.split("正在查询TMS报价")[0])
         self.assertNotIn("本轮先开通空运", joined)