diff --git a/app/modules/indexer/parser/zhixing.py b/app/modules/indexer/parser/zhixing.py
index 319be03a4..3ae3f9e2d 100644
--- a/app/modules/indexer/parser/zhixing.py
+++ b/app/modules/indexer/parser/zhixing.py
@@ -41,7 +41,7 @@ class ZhixingSiteUserInfo(SiteParserBase):
         soup = BeautifulSoup(html_text, 'html.parser')
         return bool(soup.find(id='um'))
 
-    def _parse_user_base_info(self, html_text: SitePage):
+    def _parse_user_base_info(self, html_text: SitePage) -> None:
         """
         解析用户基本信息，这里把_parse_user_traffic_info和_parse_user_detail_info合并到这里
         """
@@ -49,7 +49,7 @@ class ZhixingSiteUserInfo(SiteParserBase):
             return None
         soup = BeautifulSoup(html_text, 'html.parser')
         details_tabs = soup.find_all('div', class_='user-details-tabs')
-        info_dict = {}
+        info_dict: dict[str, str] = {}
         for tab in details_tabs:
             for p in tab.find_all('p'):
                 text = p.text.strip()
@@ -70,9 +70,9 @@ class ZhixingSiteUserInfo(SiteParserBase):
         self.userid = info_dict.get('UID')
         self.username = info_dict.get('用户名')
         self.user_level = info_dict.get('用户组')
-        self.join_at = time_tools.normalize_datetime(info_dict.get('注册时间')) if '注册时间' in info_dict else None
+        self.join_at = time_tools.normalize_datetime(info_dict['注册时间']) if '注册时间' in info_dict else None
 
-        def num_filesize_safe(s: str):
+        def num_filesize_safe(s: Optional[str]) -> int:
             """为不带单位的数字补充字节单位，空值保持零容量。"""
             if s:
                 s = s.strip()
@@ -80,15 +80,15 @@ class ZhixingSiteUserInfo(SiteParserBase):
                     s += ' B'
             return self.num_filesize(s) if s else 0
 
-        self.upload = num_filesize_safe(info_dict.get('上传流量')) if '上传流量' in info_dict else 0
-        self.download = num_filesize_safe(info_dict.get('下载流量')) if '下载流量' in info_dict else 0
-        self.ratio = float(info_dict.get('共享率')) if '共享率' in info_dict else 0
-        self.bonus = float(info_dict.get('保种积分')) if '保种积分' in info_dict else 0.0
+        self.upload = num_filesize_safe(info_dict['上传流量']) if '上传流量' in info_dict else 0
+        self.download = num_filesize_safe(info_dict['下载流量']) if '下载流量' in info_dict else 0
+        self.ratio = float(info_dict['共享率']) if '共享率' in info_dict else 0
+        self.bonus = float(info_dict['保种积分']) if '保种积分' in info_dict else 0.0
         self.message_unread = 0  # 暂无消息解析
 
         # Temporarily set seeding from basic, will override or fallback later
-        self.seeding = int(info_dict.get('当前保种数量')) if '当前保种数量' in info_dict else 0
-        self.seeding_size = num_filesize_safe(info_dict.get('当前保种容量')) if '当前保种容量' in info_dict else 0
+        self.seeding = int(info_dict['当前保种数量']) if '当前保种数量' in info_dict else 0
+        self.seeding_size = num_filesize_safe(info_dict['当前保种容量']) if '当前保种容量' in info_dict else 0
 
     def _parse_user_traffic_info(self, html_text: str) -> None:
         """该站点在其他解析入口处理此数据，本入口不追加操作。"""
@@ -130,7 +130,7 @@ class ZhixingSiteUserInfo(SiteParserBase):
         """
         pass
 
-    def parse(self):
+    def parse(self) -> None:
         """
         解析站点信息
         """
@@ -166,7 +166,7 @@ class ZhixingSiteUserInfo(SiteParserBase):
                     page_num += 1
                 # Fallback to basic if no seeding found from pages
                 if self.seeding == 0 and hasattr(self, '_basic_info'):
-                    def num_filesize_safe(s: str):
+                    def num_filesize_safe(s: Optional[str]) -> int:
                         """为不带单位的数字补充字节单位，空值保持零容量。"""
                         if s:
                             s = s.strip()
@@ -176,17 +176,8 @@ class ZhixingSiteUserInfo(SiteParserBase):
                     self.seeding = int(self._basic_info.get('当前保种数量', 0))
                     self.seeding_size = num_filesize_safe(self._basic_info.get('当前保种容量', ''))
 
-        # 🔑 最终对外统一转字符串，避免 join 报错
+        # 文本字段归一为空字符串；流量、数量和比例保留基类约定的数值类型。
         self.userid = str(self.userid or "")
         self.username = str(self.username or "")
         self.user_level = str(self.user_level or "")
         self.join_at = str(self.join_at or "")
-
-        self.upload = str(self.upload or 0)
-        self.download = str(self.download or 0)
-        self.ratio = str(self.ratio or 0)
-        self.bonus = str(self.bonus or 0.0)
-        self.message_unread = str(self.message_unread or 0)
-
-        self.seeding = str(self.seeding or 0)
-        self.seeding_size = str(self.seeding_size or 0)
diff --git a/mypy.ini b/mypy.ini
index d8068edaa..d05ba98c4 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -7,6 +7,7 @@ follow_imports = skip
 show_error_codes = True
 pretty = True
 files =
+    app/modules/indexer/parser/zhixing.py,
     app/chain/transfer/format.py,
     app/application/formatting.py,
     app/modules/transmission/__init__.py,
diff --git a/tests/fixtures/architecture/mypy-baseline.json b/tests/fixtures/architecture/mypy-baseline.json
index a7a7fd4c5..25cf576f6 100644
--- a/tests/fixtures/architecture/mypy-baseline.json
+++ b/tests/fixtures/architecture/mypy-baseline.json
@@ -1157,11 +1157,6 @@
     "arg-type": 2,
     "type-arg": 1
   },
-  "app/modules/indexer/parser/zhixing.py": {
-    "arg-type": 7,
-    "assignment": 7,
-    "no-untyped-def": 4
-  },
   "app/modules/indexer/spider/__init__.py": {
     "arg-type": 12,
     "assignment": 3,
diff --git a/tests/test_zhixing_numeric_contract.py b/tests/test_zhixing_numeric_contract.py
new file mode 100644
index 000000000..4ba253159
--- /dev/null
+++ b/tests/test_zhixing_numeric_contract.py
@@ -0,0 +1,52 @@
+"""知行解析器的数值属性与对外 Schema 兼容合同。"""
+
+from unittest.mock import Mock
+
+import pytest
+
+from app.modules.indexer.parser import SiteParserBase
+from app.modules.indexer.parser.zhixing import ZhixingSiteUserInfo
+from app.schemas.site import SiteUserData
+
+
+@pytest.mark.parametrize("seeding_page,seeding,seeding_size", [
+    ("", 3, 2 * 1024 ** 3),
+    ('<table><tr id="t1"><td class="r"><a>1 GiB</a></td></tr></table>', 1, 1024 ** 3),
+])
+def test_numeric_properties_preserve_site_schema_and_seeding_fallback(
+    monkeypatch, seeding_page, seeding, seeding_size,
+):
+    """离线解析保留页面统计和详情回退，属性采用基类数值类型，API 数值不变。"""
+    parser = ZhixingSiteUserInfo(
+        site_name="offline", url="https://zhixing.invalid/", site_cookie="", apikey=None, token=None,
+        request_utils=Mock(),
+    )
+    monkeypatch.setattr(SiteParserBase, "parse", lambda _self: None)
+    parser._parse_site_page("")
+    parser._index_html = '<a href="/user/42/">offline</a>'
+    basic = """<div class="user-details-tabs">
+        <p>UID：42</p><p>用户名：offline</p><p>用户组：Power User</p>
+        <p>上传流量：2048</p><p>下载流量：1024</p><p>共享率：2</p><p>保种积分：1.5</p>
+        <p>当前保种数量：3</p><p>当前保种容量：2 GiB</p>
+    </div>"""
+    pages = {
+        "https://zhixing.invalid/user/42/": basic,
+        "https://zhixing.invalid/user/42/seeding/p1": seeding_page,
+        "https://zhixing.invalid/user/42/seeding/p2": "",
+    }
+    reader = Mock(side_effect=lambda *, url: pages[url])
+    monkeypatch.setattr(parser, "_get_page_content", reader)
+    parser.parse()
+
+    expected = {
+        "upload": 2048, "download": 1024, "ratio": 2.0, "bonus": 1.5,
+        "message_unread": 0, "seeding": seeding, "seeding_size": seeding_size,
+    }
+    public_data = SiteUserData.model_validate(parser).model_dump(include=set(expected))
+    assert public_data == expected
+    assert parser.userid == "42"
+    assert parser.username == "offline"
+    assert parser.user_level == "Power User"
+    for field, value in expected.items():
+        assert type(getattr(parser, field)) is type(value), field
+    assert reader.call_count == (3 if seeding_page else 2)