diff --git a/.planning/phases/03-qcwy-zhilian/03-01-PLAN.md b/.planning/phases/03-qcwy-zhilian/03-01-PLAN.md
new file mode 100644
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+++ b/.planning/phases/03-qcwy-zhilian/03-01-PLAN.md
@@ -0,0 +1,243 @@
+---
+phase: 3
+plan: 1
+wave: 1
+title: "迁移前程无忧（job51）层至 crawler_core + mock 测试"
+depends_on: []
+files_modified:
+  - spiderJobs/platforms/job51/client.py
+  - spiderJobs/platforms/job51/api.py
+  - spiderJobs/platforms/job51/main.py
+  - spiderJobs/platforms/job51/sign.py
+  - tests/job51/__init__.py
+  - tests/job51/test_job51_client.py
+autonomous: true
+requirements:
+  - ARCH-04
+---
+
+# Phase 3 Plan 01: 迁移前程无忧（job51）层至 crawler_core + mock 测试
+
+## Objective
+
+将 `spiderJobs/platforms/job51/` 从依赖 `spiderJobs.core`（旧基类）改为依赖 `crawler_core`（新基类），
+同时新增 `tests/job51/test_job51_client.py` mock 测试，满足 ARCH-04。
+
+迁移与 Phase 2 Boss 完全对称：4 个文件修改 + sign.py 改桩 + 新增测试。
+
+## Must Haves
+
+- [ ] `client.py` 继承 `crawler_core.http_client.HTTPClient`，使用 `crawler_core.qcwy.sign.Job51Sign`
+- [ ] `api.py` 使用 `crawler_core.base.Result/BaseFetcher/BaseSearcher`，`ApiResult` 全量替换为 `Result`
+- [ ] `api.py` 中 2 处 `self._http` 替换为 `self.http_client`
+- [ ] `main.py` import 更新为 `crawler_core.base`
+- [ ] `sign.py` 改为向后兼容桩（重新导出 `crawler_core.qcwy.sign.Job51Sign`）
+- [ ] `python -c "from spiderJobs.platforms.job51.api import ...; from spiderJobs.platforms.job51.client import ..."` 无 ImportError
+- [ ] `grep -rn "spiderJobs.core" spiderJobs/platforms/job51/{client,api,main,sign}.py` 无输出
+- [ ] `tests/job51/__init__.py` 存在
+- [ ] `tests/job51/test_job51_client.py` 存在
+- [ ] `pytest tests/job51/ -v` 全部通过（>= 15 个测试）
+
+---
+
+## Wave 1
+
+### Task 1.1: 更新 client.py
+
+<read_first>
+- `spiderJobs/platforms/job51/client.py`（当前内容）
+- `crawler_core/http_client.py`（目标基类）
+- `crawler_core/qcwy/sign.py`（Job51Sign 新来源）
+</read_first>
+
+<action>
+修改 `spiderJobs/platforms/job51/client.py`：
+
+1. 第 15 行改为：
+   ```python
+   from crawler_core.http_client import HTTPClient
+   ```
+2. 第 16 行改为：
+   ```python
+   from crawler_core.qcwy.sign import Job51Sign
+   ```
+   （删除 `from spiderJobs.core.http_client import HTTPClient` 和 `from spiderJobs.platforms.job51.sign import Job51Sign`）
+
+其他所有内容（JOB51_HEADERS、Job51Client 类体、create_client 函数）不变。
+</action>
+
+<acceptance_criteria>
+- `grep "from crawler_core.http_client import HTTPClient" spiderJobs/platforms/job51/client.py` 有输出
+- `grep "from crawler_core.qcwy.sign import Job51Sign" spiderJobs/platforms/job51/client.py` 有输出
+- `grep "spiderJobs.core" spiderJobs/platforms/job51/client.py` 无输出
+- `python -c "from spiderJobs.platforms.job51.client import Job51Client, create_client"` 无 ImportError
+</acceptance_criteria>
+
+---
+
+### Task 1.2: 更新 api.py
+
+<read_first>
+- `spiderJobs/platforms/job51/api.py`（当前完整内容，共 ~260 行）
+- `crawler_core/base.py`（Result、BaseFetcher、BaseSearcher 接口）
+</read_first>
+
+<action>
+修改 `spiderJobs/platforms/job51/api.py`：
+
+1. 第 14 行改为：
+   ```python
+   from crawler_core.base import BaseFetcher, BaseSearcher, Result
+   ```
+   （删除 `from spiderJobs.core.base import ApiResult, BaseFetcher, BaseSearcher`）
+
+2. 全文将 `ApiResult` 替换为 `Result`（共 11 处，包含函数注解和 return 语句）
+
+3. 第 164 行：`http_code, data = self._http.get(endpoint)` → `http_code, data = self.http_client.get(endpoint)`
+
+4. 第 208 行：`http_code, data = self._http.get(self.ENDPOINT, self._build_params())` → `http_code, data = self.http_client.get(self.ENDPOINT, self._build_params())`
+
+`_parse_job51_response` 逻辑（status/1 判断、resultbody 解析）完全保留，只替换 `ApiResult` → `Result`。
+</action>
+
+<acceptance_criteria>
+- `grep "from crawler_core.base import" spiderJobs/platforms/job51/api.py` 有输出
+- `grep "ApiResult" spiderJobs/platforms/job51/api.py` 无输出
+- `grep "self\._http" spiderJobs/platforms/job51/api.py` 无输出
+- `python -c "from spiderJobs.platforms.job51.api import SearchRecommendJobs, GetJobDetail, GetCompanyDetail, SearchCompanyJobs"` 无 ImportError
+</acceptance_criteria>
+
+---
+
+### Task 1.3: 更新 main.py
+
+<read_first>
+- `spiderJobs/platforms/job51/main.py`（当前内容）
+</read_first>
+
+<action>
+修改 `spiderJobs/platforms/job51/main.py`：
+
+1. 第 32 行改为：
+   ```python
+   from crawler_core.base import BaseFetcher, BaseSearcher
+   ```
+   （删除 `from spiderJobs.core.base import BaseFetcher, BaseSearcher`）
+
+其他内容不变。
+</action>
+
+<acceptance_criteria>
+- `grep "from crawler_core.base import BaseFetcher, BaseSearcher" spiderJobs/platforms/job51/main.py` 有输出
+- `grep "spiderJobs.core" spiderJobs/platforms/job51/main.py` 无输出
+</acceptance_criteria>
+
+---
+
+### Task 1.4: 将 sign.py 改为向后兼容桩
+
+<read_first>
+- `spiderJobs/platforms/job51/sign.py`（当前内容）
+- `crawler_core/qcwy/sign.py`（权威实现）
+</read_first>
+
+<action>
+将 `spiderJobs/platforms/job51/sign.py` 完全替换为：
+
+```python
+"""
+向后兼容桩 — 前程无忧 (51Job) 签名
+
+已迁移至 crawler_core.qcwy.sign。
+直接从 crawler_core 重新导出，避免下游代码出现 ImportError。
+"""
+
+from crawler_core.qcwy.sign import Job51Sign  # noqa: F401
+
+__all__ = ["Job51Sign"]
+```
+</action>
+
+<acceptance_criteria>
+- `grep "from crawler_core.qcwy.sign import Job51Sign" spiderJobs/platforms/job51/sign.py` 有输出
+- `python -c "from spiderJobs.platforms.job51.sign import Job51Sign; print(Job51Sign.generate_uuid())"` 成功打印 UUID
+</acceptance_criteria>
+
+---
+
+### Task 1.5: 创建 tests/job51/__init__.py
+
+<action>
+创建 `tests/job51/__init__.py`，内容：`# tests/job51/`
+</action>
+
+<acceptance_criteria>
+- `test -f tests/job51/__init__.py && echo "OK"` 输出 OK
+</acceptance_criteria>
+
+---
+
+### Task 1.6: 编写 tests/job51/test_job51_client.py
+
+<read_first>
+- `spiderJobs/platforms/job51/api.py`（迁移后版本）
+- `spiderJobs/platforms/job51/client.py`（迁移后版本）
+- `crawler_core/qcwy/sign.py`（Job51Sign 接口）
+- `tests/boss/test_boss_client.py`（参考风格）
+</read_first>
+
+<action>
+创建 `tests/job51/test_job51_client.py`，包含以下测试组：
+
+1. **TestParseJob51Response（纯函数）：**
+   - `test_http_error_returns_failure`：HTTP 500 → success=False
+   - `test_status_zero_returns_failure`：status=0 → success=False
+   - `test_status_one_with_resultbody_job_list`：status=1，resultbody.jobList.items → list 解析正确
+   - `test_status_one_no_items`：status=1，无 items → success=True，list=[]
+   - `test_non_dict_raw_returns_failure`：raw 不是 dict → failure
+
+2. **TestSearchRecommendJobs：**
+   - `test_search_success`：正常返回职位列表
+   - `test_search_http_error`：HTTP 403
+
+3. **TestGetJobDetail：**
+   - `test_fetch_success`：成功返回 data
+   - `test_fetch_exception_handled`：`http_client.get` 抛异常 → success=False
+
+4. **TestGetCompanyDetail：**
+   - `test_fetch_success`：成功返回 data
+
+5. **TestJob51ClientHeaders：**
+   - `test_headers_contain_sign`：POST 后 `_job51_headers(sign="abc")["sign"]` == "abc"
+   - `test_headers_uuid_format`：uuid 字段长度 >= 20
+
+所有测试使用 `MagicMock()` mock http_client.get/post，无需网络。
+</action>
+
+<acceptance_criteria>
+- `test -f tests/job51/test_job51_client.py && echo "OK"` 输出 OK
+- `pipenv run python -m pytest tests/job51/ -v` 全部通过（>= 12 个测试用例）
+</acceptance_criteria>
+
+---
+
+## Verification
+
+```bash
+# 1. 验证所有 job51 模块 import 正确
+pipenv run python -c "
+from spiderJobs.platforms.job51.client import Job51Client, create_client
+from spiderJobs.platforms.job51.api import SearchRecommendJobs, GetJobDetail, GetCompanyDetail
+from spiderJobs.platforms.job51.main import main, create_searcher
+from crawler_core.base import BaseFetcher, BaseSearcher
+from spiderJobs.platforms.job51.api import SearchRecommendJobs
+assert issubclass(SearchRecommendJobs, BaseSearcher)
+print('✅ 所有 job51 模块 import 成功，继承关系正确')
+"
+
+# 2. 确认无旧依赖残留
+grep -rn "spiderJobs.core" spiderJobs/platforms/job51/client.py spiderJobs/platforms/job51/api.py spiderJobs/platforms/job51/main.py spiderJobs/platforms/job51/sign.py && echo "❌ 仍有旧依赖" || echo "✅ 无旧依赖"
+
+# 3. 运行 mock 测试
+pipenv run python -m pytest tests/job51/ -v
+```
diff --git a/.planning/phases/03-qcwy-zhilian/03-02-PLAN.md b/.planning/phases/03-qcwy-zhilian/03-02-PLAN.md
new file mode 100644
index 0000000..88f07bd
--- /dev/null
+++ b/.planning/phases/03-qcwy-zhilian/03-02-PLAN.md
@@ -0,0 +1,369 @@
+---
+phase: 3
+plan: 2
+wave: 1
+title: "迁移智联招聘（zhilian）层至 crawler_core + mock 测试"
+depends_on: []
+files_modified:
+  - spiderJobs/platforms/zhilian/client.py
+  - spiderJobs/platforms/zhilian/api.py
+  - spiderJobs/platforms/zhilian/main.py
+  - spiderJobs/platforms/zhilian/sign.py
+  - tests/zhilian/__init__.py
+  - tests/zhilian/test_zhilian_client.py
+autonomous: true
+requirements:
+  - ARCH-05
+---
+
+# Phase 3 Plan 02: 迁移智联招聘（zhilian）层至 crawler_core + mock 测试
+
+## Objective
+
+将 `spiderJobs/platforms/zhilian/` 从依赖 `spiderJobs.core`（旧基类）改为依赖 `crawler_core`（新基类），
+同时新增 `tests/zhilian/test_zhilian_client.py` mock 测试，满足 ARCH-05。
+
+**与 job51 的关键差异：**
+- zhilian api.py 使用默认的 `parse_response`（无自定义 `_parse_response` 函数），无 `ApiResult` 替换
+- zhilian client.py 需要特别保留 `ZhilianSign` 的 `sign_headers()` 和 `sign_params()` 接口
+- `SearchCompanyPositions._build_params()` 通过 `self._client.signer.sign_params()` 访问 signer，迁移后不受影响
+
+## Must Haves
+
+- [ ] `client.py` 继承 `crawler_core.http_client.HTTPClient`，使用 `crawler_core.zhilian.sign.ZhilianSign`
+- [ ] `api.py` 使用 `crawler_core.base.BaseFetcher/BaseSearcher`
+- [ ] `api.py` 中 1 处 `self._http.get(` 替换为 `self.http_client.get(`（第 200 行）
+- [ ] `main.py` import 更新为 `crawler_core.base`
+- [ ] `sign.py` 改为向后兼容桩（重新导出 `crawler_core.zhilian.sign.ZhilianSign`）
+- [ ] `grep -rn "spiderJobs.core" spiderJobs/platforms/zhilian/{client,api,main,sign}.py` 无输出
+- [ ] `tests/zhilian/__init__.py` 存在
+- [ ] `tests/zhilian/test_zhilian_client.py` 存在
+- [ ] `pytest tests/zhilian/ -v` 全部通过（>= 12 个测试）
+
+---
+
+## Wave 1
+
+### Task 2.1: 更新 client.py
+
+<read_first>
+- `spiderJobs/platforms/zhilian/client.py`（当前内容）
+- `crawler_core/http_client.py`（目标基类）
+- `crawler_core/zhilian/sign.py`（ZhilianSign 新来源）
+</read_first>
+
+<action>
+修改 `spiderJobs/platforms/zhilian/client.py`：
+
+1. 第 10 行改为：
+   ```python
+   from crawler_core.http_client import HTTPClient
+   ```
+2. 第 11 行改为：
+   ```python
+   from crawler_core.zhilian.sign import ZhilianSign
+   ```
+   （删除 `from spiderJobs.core.http_client import HTTPClient` 和 `from spiderJobs.platforms.zhilian.sign import ZhilianSign`）
+
+**注意：** `ZhilianClient.get/post` 方法覆写了父类，并调用 `self.signer.sign_headers(page_code)`，这是 ZhilianSign 的接口，迁移后不受影响（接口签名完全一致）。
+其他所有内容不变。
+</action>
+
+<acceptance_criteria>
+- `grep "from crawler_core.http_client import HTTPClient" spiderJobs/platforms/zhilian/client.py` 有输出
+- `grep "from crawler_core.zhilian.sign import ZhilianSign" spiderJobs/platforms/zhilian/client.py` 有输出
+- `grep "spiderJobs.core" spiderJobs/platforms/zhilian/client.py` 无输出
+- `python -c "from spiderJobs.platforms.zhilian.client import ZhilianClient"` 无 ImportError
+</acceptance_criteria>
+
+---
+
+### Task 2.2: 更新 api.py
+
+<read_first>
+- `spiderJobs/platforms/zhilian/api.py`（当前完整内容，229 行）
+- `crawler_core/base.py`（BaseFetcher、BaseSearcher 接口）
+</read_first>
+
+<action>
+修改 `spiderJobs/platforms/zhilian/api.py`：
+
+1. 第 10 行改为：
+   ```python
+   from crawler_core.base import BaseFetcher, BaseSearcher
+   ```
+   （删除 `from spiderJobs.core.base import BaseFetcher, BaseSearcher`）
+
+2. 第 200 行（`SearchCompanyPositions._request()`）改为：
+   ```python
+   return self.http_client.get(self.ENDPOINT, params)
+   ```
+   （原为 `return self._http.get(self.ENDPOINT, params)`）
+
+**注意：** zhilian api.py 无 ApiResult（使用默认解析器），无需替换 ApiResult。
+`SearchCompanyPositions._build_params()` 中的 `self._client.signer.sign_params()` 不需要修改。
+</action>
+
+<acceptance_criteria>
+- `grep "from crawler_core.base import BaseFetcher, BaseSearcher" spiderJobs/platforms/zhilian/api.py` 有输出
+- `grep "spiderJobs.core" spiderJobs/platforms/zhilian/api.py` 无输出
+- `grep "self\._http" spiderJobs/platforms/zhilian/api.py` 无输出
+- `python -c "from spiderJobs.platforms.zhilian.api import SearchPositions, GetPositionDetail, SearchCompanyPositions"` 无 ImportError
+</acceptance_criteria>
+
+---
+
+### Task 2.3: 更新 main.py
+
+<read_first>
+- `spiderJobs/platforms/zhilian/main.py`（当前内容，113 行）
+</read_first>
+
+<action>
+修改 `spiderJobs/platforms/zhilian/main.py`：
+
+1. 第 32 行改为：
+   ```python
+   from crawler_core.base import BaseFetcher, BaseSearcher
+   ```
+   （删除 `from spiderJobs.core.base import BaseFetcher, BaseSearcher`）
+
+其他内容不变（无 sign import，main.py 中签名通过 ZhilianClient 自动注入）。
+</action>
+
+<acceptance_criteria>
+- `grep "from crawler_core.base import BaseFetcher, BaseSearcher" spiderJobs/platforms/zhilian/main.py` 有输出
+- `grep "spiderJobs.core" spiderJobs/platforms/zhilian/main.py` 无输出
+</acceptance_criteria>
+
+---
+
+### Task 2.4: 将 sign.py 改为向后兼容桩
+
+<read_first>
+- `spiderJobs/platforms/zhilian/sign.py`（当前内容，87 行的独立实现）
+- `crawler_core/zhilian/sign.py`（权威实现）
+</read_first>
+
+<action>
+将 `spiderJobs/platforms/zhilian/sign.py` 完全替换为：
+
+```python
+"""
+向后兼容桩 — 智联招聘签名
+
+已迁移至 crawler_core.zhilian.sign。
+直接从 crawler_core 重新导出，避免下游代码出现 ImportError。
+"""
+
+from crawler_core.zhilian.sign import ZhilianSign  # noqa: F401
+
+__all__ = ["ZhilianSign"]
+```
+</action>
+
+<acceptance_criteria>
+- `grep "from crawler_core.zhilian.sign import ZhilianSign" spiderJobs/platforms/zhilian/sign.py` 有输出
+- `python -c "from spiderJobs.platforms.zhilian.sign import ZhilianSign; print(ZhilianSign().generate_uuid())"` 成功打印 UUID
+</acceptance_criteria>
+
+---
+
+### Task 2.5: 创建 tests/zhilian/__init__.py
+
+<action>
+创建 `tests/zhilian/__init__.py`，内容：`# tests/zhilian/`
+</action>
+
+---
+
+### Task 2.6: 编写 tests/zhilian/test_zhilian_client.py
+
+<read_first>
+- `spiderJobs/platforms/zhilian/api.py`（迁移后版本）
+- `spiderJobs/platforms/zhilian/client.py`（迁移后版本）
+- `crawler_core/zhilian/sign.py`（ZhilianSign 接口）
+- `tests/boss/test_boss_client.py`（参考风格）
+</read_first>
+
+<action>
+创建 `tests/zhilian/test_zhilian_client.py`，包含以下测试：
+
+```python
+"""
+智联招聘 HTTP 层 mock 测试（QUAL-03 / ARCH-05）
+
+使用 MagicMock 替代真实 HTTP 客户端，无网络依赖。
+"""
+
+from __future__ import annotations
+from unittest.mock import MagicMock
+from crawler_core.zhilian.sign import ZhilianSign
+from spiderJobs.platforms.zhilian.api import (
+    SearchPositions, GetPositionDetail, GetCompanyExtDetail,
+    GetCompanyDetail, SearchCompanyPositions,
+)
+from spiderJobs.platforms.zhilian.client import ZhilianClient
+from crawler_core.base import Result
+
+
+# ── 1. SearchPositions（POST cgate）─────────────────────
+
+class TestSearchPositions:
+
+    def _make_client(self, status_code=200, data=None):
+        mock_client = MagicMock()
+        mock_client.post.return_value = (status_code, data or {})
+        return mock_client
+
+    def test_search_success_returns_list(self):
+        data = {
+            "data": {"list": [{"title": "Python 工程师"}], "numFound": 1},
+            "pageInfo": {"pageNum": 1, "pageSize": 15, "totalNum": 1}
+        }
+        searcher = SearchPositions(keyword="Python", city_code=538,
+                                   client=self._make_client(200, data))
+        result = searcher.search(page_index=1)
+        assert result.success is True
+
+    def test_search_http_error(self):
+        searcher = SearchPositions(client=self._make_client(403, {}))
+        result = searcher.search(page_index=1)
+        assert result.success is False
+        assert result.status_code == 403
+
+
+# ── 2. GetPositionDetail（GET cgate）────────────────────
+
+class TestGetPositionDetail:
+
+    def test_fetch_success(self):
+        mock_client = MagicMock()
+        mock_client.get.return_value = (200, {"data": {"jobName": "高级工程师"}})
+        fetcher = GetPositionDetail(number="CC123456", client=mock_client)
+        result = fetcher.fetch()
+        assert result.success is True
+
+    def test_fetch_404(self):
+        mock_client = MagicMock()
+        mock_client.get.return_value = (404, {})
+        fetcher = GetPositionDetail(number="notexist", client=mock_client)
+        result = fetcher.fetch()
+        assert result.success is False
+        assert result.status_code == 404
+
+
+# ── 3. GetCompanyExtDetail（GET cgate）──────────────────
+
+class TestGetCompanyExtDetail:
+
+    def test_fetch_success(self):
+        mock_client = MagicMock()
+        mock_client.get.return_value = (200, {"data": {"companyName": "测试公司"}})
+        fetcher = GetCompanyExtDetail(
+            company_name="测试公司", company_number="CZ123", client=mock_client)
+        result = fetcher.fetch()
+        assert result.success is True
+
+
+# ── 4. GetCompanyDetail（GET cgate）─────────────────────
+
+class TestGetCompanyDetail:
+
+    def test_fetch_success(self):
+        mock_client = MagicMock()
+        mock_client.get.return_value = (200, {"data": {"companyNumber": "CZ123"}})
+        fetcher = GetCompanyDetail(number="CZ123", client=mock_client)
+        result = fetcher.fetch()
+        assert result.success is True
+
+    def test_fetch_http_error(self):
+        mock_client = MagicMock()
+        mock_client.get.return_value = (500, {})
+        fetcher = GetCompanyDetail(number="CZ123", client=mock_client)
+        result = fetcher.fetch()
+        assert result.success is False
+
+
+# ── 5. SearchCompanyPositions（GET capi）────────────────
+
+class TestSearchCompanyPositions:
+
+    def test_search_success(self):
+        mock_signer = MagicMock(spec=ZhilianSign)
+        mock_signer.sign_params.return_value = {"at": "", "rt": ""}
+        mock_client = MagicMock()
+        mock_client.signer = mock_signer
+        mock_client.get.return_value = (200, {"data": {"list": [{"jobName": "测试岗位"}]},
+                                               "pageInfo": {}})
+        searcher = SearchCompanyPositions(company_id="CZ123", client=mock_client)
+        result = searcher.search(page_index=1)
+        assert result.success is True
+        assert mock_signer.sign_params.called
+
+    def test_search_http_error(self):
+        mock_signer = MagicMock(spec=ZhilianSign)
+        mock_signer.sign_params.return_value = {}
+        mock_client = MagicMock()
+        mock_client.signer = mock_signer
+        mock_client.get.return_value = (403, {})
+        searcher = SearchCompanyPositions(company_id="CZ123", client=mock_client)
+        result = searcher.search(page_index=1)
+        assert result.success is False
+
+
+# ── 6. ZhilianClient — 签名头注入 ───────────────────────
+
+class TestZhilianClientHeaders:
+
+    def test_sign_headers_injects_at_rt(self):
+        signer = ZhilianSign(at="mock_at", rt="mock_rt")
+        client = ZhilianClient(signer=signer)
+        headers = client.signer.sign_headers()
+        assert headers["x-zp-at"] == "mock_at"
+        assert headers["x-zp-rt"] == "mock_rt"
+
+    def test_sign_headers_has_required_keys(self):
+        client = ZhilianClient()
+        headers = client.signer.sign_headers()
+        for key in ["x-zp-at", "x-zp-rt", "x-zp-action-id", "x-zp-device-id"]:
+            assert key in headers
+
+    def test_default_signer_empty_tokens(self):
+        client = ZhilianClient()
+        headers = client.signer.sign_headers()
+        assert headers["x-zp-at"] == ""
+        assert headers["x-zp-rt"] == ""
+```
+</action>
+
+<acceptance_criteria>
+- `test -f tests/zhilian/test_zhilian_client.py && echo "OK"` 输出 OK
+- `pipenv run python -m pytest tests/zhilian/ -v` 全部通过（>= 12 个测试）
+</acceptance_criteria>
+
+---
+
+## Verification
+
+```bash
+# 1. 验证所有 zhilian 模块 import 正确
+pipenv run python -c "
+from spiderJobs.platforms.zhilian.client import ZhilianClient, create_cgate_client, create_capi_client
+from spiderJobs.platforms.zhilian.api import SearchPositions, GetPositionDetail, GetCompanyDetail, SearchCompanyPositions
+from spiderJobs.platforms.zhilian.main import main, create_searcher
+from crawler_core.base import BaseFetcher, BaseSearcher
+assert issubclass(SearchPositions, BaseSearcher)
+assert issubclass(GetPositionDetail, BaseFetcher)
+print('✅ 所有 zhilian 模块 import 成功，继承关系正确')
+"
+
+# 2. 确认无旧依赖残留
+grep -rn "spiderJobs.core" spiderJobs/platforms/zhilian/client.py spiderJobs/platforms/zhilian/api.py spiderJobs/platforms/zhilian/main.py spiderJobs/platforms/zhilian/sign.py && echo "❌ 仍有旧依赖" || echo "✅ 无旧依赖"
+
+# 3. 运行 mock 测试
+pipenv run python -m pytest tests/zhilian/ -v
+
+# 4. 三平台全量回归
+pipenv run python -m pytest tests/ -v --tb=short
+```
diff --git a/.planning/phases/03-qcwy-zhilian/03-RESEARCH.md b/.planning/phases/03-qcwy-zhilian/03-RESEARCH.md
new file mode 100644
index 0000000..54956ed
--- /dev/null
+++ b/.planning/phases/03-qcwy-zhilian/03-RESEARCH.md
@@ -0,0 +1,107 @@
+# Phase 3: 前程无忧 & 智联重写 — 技术研究
+
+**研究日期:** 2026-03-21  
+**阶段目标:** 前程无忧和智联招聘爬虫完全基于 crawler_core 运行，三平台统一使用新基类
+
+---
+
+## 1. 现状分析
+
+### 1.1 crawler_core 现有基础（Phase 1 完成）
+
+| 文件 | 内容 |
+|------|------|
+| `crawler_core/qcwy/sign.py` | `Job51Sign.build_sign_path()` — HMAC-SHA256 签名 |
+| `crawler_core/zhilian/sign.py` | `ZhilianSign.sign_headers()/sign_params()` — 智联多类型签名 |
+| `crawler_core/http_client.py` | `HTTPClient` — TLS 伪装 + 代理 + tenacity 重试 |
+| `crawler_core/base.py` | `Result[T]`, `BaseFetcher`, `BaseSearcher` |
+
+### 1.2 前程无忧（job51）待迁移层
+
+`spiderJobs/platforms/job51/` 下已有全部文件：
+
+| 文件 | 旧依赖 | 迁移目标 |
+|------|--------|---------|
+| `client.py` | `spiderJobs.core.http_client.HTTPClient` + `spiderJobs.platforms.job51.sign.Job51Sign` | → `crawler_core.http_client.HTTPClient` + `crawler_core.qcwy.sign.Job51Sign` |
+| `api.py` | `spiderJobs.core.base.ApiResult/BaseFetcher/BaseSearcher` | → `crawler_core.base.Result/BaseFetcher/BaseSearcher` |
+| `main.py` | `spiderJobs.core.base.BaseFetcher/BaseSearcher` | → `crawler_core.base.BaseFetcher/BaseSearcher` |
+| `sign.py` | 独立实现（与 crawler_core/qcwy/sign.py 相同） | → 向后兼容桩，重新导出 `Job51Sign` |
+
+**job51/api.py 具体变更：**
+- 第 14 行 import 替换
+- `ApiResult` 全量替换为 `Result`（共 11 处）
+- 第 164 行：`self._http.get(endpoint)` → `self.http_client.get(endpoint)`
+- 第 208 行：`self._http.get(self.ENDPOINT, ...)` → `self.http_client.get(self.ENDPOINT, ...)`
+
+### 1.3 智联招聘（zhilian）待迁移层
+
+`spiderJobs/platforms/zhilian/` 下已有全部文件：
+
+| 文件 | 旧依赖 | 迁移目标 |
+|------|--------|---------|
+| `client.py` | `spiderJobs.core.http_client.HTTPClient` + `spiderJobs.platforms.zhilian.sign.ZhilianSign` | → `crawler_core.http_client.HTTPClient` + `crawler_core.zhilian.sign.ZhilianSign` |
+| `api.py` | `spiderJobs.core.base.BaseFetcher/BaseSearcher` | → `crawler_core.base.BaseFetcher/BaseSearcher` |
+| `main.py` | `spiderJobs.core.base.BaseFetcher/BaseSearcher` | → `crawler_core.base.BaseFetcher/BaseSearcher` |
+| `sign.py` | 独立实现（与 crawler_core/zhilian/sign.py 相同） | → 向后兼容桩，重新导出 `ZhilianSign` |
+
+**zhilian/api.py 具体变更：**
+- 第 10 行 import 替换（无 ApiResult，zhilian 使用 crawler_core 的默认解析器，无需自定义 _parse_response）
+- 第 200 行：`return self._http.get(` → `return self.http_client.get(`
+
+**重要差异：** 智联 api.py 中 `SearchCompanyPositions._build_params()` 第 184 行使用了 `self._client.signer.sign_params()`，这是通过 `self._client`（设为传入的 ZhilianClient）间接访问 signer 的，迁移后不受影响（属性名不变）。
+
+---
+
+## 2. 对比 Phase 2（Boss）的工作量
+
+| 维度 | Phase 2 Boss | Phase 3 job51 | Phase 3 zhilian |
+|------|-------------|---------------|-----------------|
+| `ApiResult` 替换 | 11 处 | 11 处 | 0 处（无自定义解析器） |
+| `self._http` 替换 | 3 处 | 2 处 | 1 处 |
+| sign.py → 桩 | ✓ | ✓ | ✓ |
+| client.py import | ✓ | ✓ | ✓ |
+| api.py import | ✓ | ✓ | ✓ |
+| main.py import | ✓ | ✓ | ✓ |
+
+---
+
+## 3. mock 测试策略
+
+### 3.1 job51 测试（tests/job51/test_job51_client.py）
+
+job51 的 mock 策略与 Boss 完全一致：用 `MagicMock()` mock `http_client`，测试：
+- `_parse_job51_response`（纯函数，覆盖 status/1 成功、非 1 失败、HTTP 错误）
+- `SearchRecommendJobs.search()`（正常、HTTP 错误）
+- `GetJobDetail.fetch()`（成功，异常捕获）
+- `GetCompanyDetail.fetch()`（成功）
+- `Job51Client._job51_headers()`（sign 注入）
+
+### 3.2 zhilian 测试（tests/zhilian/test_zhilian_client.py）
+
+智联的请求走 POST（cgate）或 GET（capi），mock 方式相同：
+- `SearchPositions.search()`（正常、错误）
+- `GetPositionDetail.fetch()`（成功）
+- `SearchCompanyPositions.search()`（成功，特别验证 sign_params 被调用）
+- `ZhilianClient.post/get`（验证签名头注入）
+
+---
+
+## 4. 成功标准验证
+
+| 标准 | 验证方式 |
+|------|---------|
+| job51 继承 BaseFetcher/BaseSearcher | `issubclass()` 断言 |
+| zhilian 继承 BaseFetcher/BaseSearcher | `issubclass()` 断言 |
+| 两平台无内联签名或 HTTP 样板 | `grep` 无 requests import，无 hmac 在 client/api 中 |
+| mock 测试通过 | `pytest tests/job51/ tests/zhilian/` |
+| 三平台代码结构一致 | 代码审查：client/api/sign/main 四文件结构 |
+
+---
+
+## RESEARCH COMPLETE
+
+**Phase 3 可以规划，分 2 个 PLAN：**
+- **Plan 01**：迁移前程无忧（job51）层 + mock 测试
+- **Plan 02**：迁移智联招聘（zhilian）层 + mock 测试
+
+两个 Plan 无依赖关系，理论上可并行，但顺序执行更稳妥。