diff --git a/src/main/java/com/yunhai/cms/service/impl/CmsUserCenterService.java b/src/main/java/com/yunhai/cms/service/impl/CmsUserCenterService.java
index 862ba08..cba1302 100644
--- a/src/main/java/com/yunhai/cms/service/impl/CmsUserCenterService.java
+++ b/src/main/java/com/yunhai/cms/service/impl/CmsUserCenterService.java
@@ -1,7 +1,7 @@
 package com.yunhai.cms.service.impl;
 
 import com.yunhai.platform.apistd.BizException;
-import com.yunhai.platform.openapi.client.YschBaseOpenApi;
+import com.yunhai.platform.openapi.base.YschBaseOpenApi;
 import com.yunhai.platform.utils.exception.ErrorCode;
 import com.yunhai.platform.utils.model.BoaModule;
 import lombok.extern.slf4j.Slf4j;
diff --git a/src/main/java/com/yunhai/cms/service/impl/SchoolService.java b/src/main/java/com/yunhai/cms/service/impl/SchoolService.java
index 5af5a39..6408815 100644
--- a/src/main/java/com/yunhai/cms/service/impl/SchoolService.java
+++ b/src/main/java/com/yunhai/cms/service/impl/SchoolService.java
@@ -4,7 +4,7 @@ import com.yunhai.cms.model.vo.SchoolVo;
 import com.yunhai.cms.model.vo.SiteVo;
 import com.yunhai.cms.repository.CmsArticleRepository;
 import com.yunhai.platform.apistd.BizException;
-import com.yunhai.platform.openapi.client.YschBaseOpenApi;
+import com.yunhai.platform.openapi.base.YschBaseOpenApi;
 import com.yunhai.platform.utils.exception.ErrorCode;
 import com.yunhai.platform.utils.model.BoaGroup;
 import com.yunhai.platform.utils.model.BoaUser;
diff --git a/src/main/java/com/yunhai/cms/svcitem/service/impl/SvcHallClient.java b/src/main/java/com/yunhai/cms/svcitem/service/impl/SvcHallClient.java
index 4551431..a4cd7e6 100644
--- a/src/main/java/com/yunhai/cms/svcitem/service/impl/SvcHallClient.java
+++ b/src/main/java/com/yunhai/cms/svcitem/service/impl/SvcHallClient.java
@@ -1,76 +1,111 @@
 package com.yunhai.cms.svcitem.service.impl;
 
 import com.fasterxml.jackson.databind.JsonNode;
+import com.yunhai.platform.openapi.core.YschOpenCall;
 import com.yunhai.platform.utils.http.IDHttp;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
 
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+import java.util.LinkedHashMap;
+import java.util.Map;
+
 /**
- * 办事大厅开放接口客户端（V2.0 Part C.3）：经共享 IDHttp（出站自动签名，yh.app-auth 身份
- * appKey=100005）调 svc-hall 的 /oapi/svc/**；办事大厅侧 RequireAppSignFilter 验签，
- * 其 yh.app-auth.trusted-apps 须包含 CMS 的 appKey（运维项）。
- * 信封 {code,msg,data} 由 IDHttp 解包（code!=0 抛业务异常，即办事大厅 code=2 语义在此转异常）。
+ * 办事大厅开放接口客户端（V2.0 Part C.3）：经 SDK {@link YschOpenCall} 命名目标
+ * {@code svchall}（服务目录 {@code yh.open.services.svchall}）调 svc-hall {@code /oapi/svc/**}；
+ * 出站签名/信封解包/错误映射全部由 SDK 承载——本应用零专属地址配置
+ * （《子应用配置优化方案》§4.2）。<br><br>
+ * <b>为何不能再用共享 {@code IDHttp}</b>：svc-hall 带 context-path {@code /svc-hall}，而共享
+ * 拦截器只剥 {@code yh.open.base-path}（本应用 {@code /userbase}）——原手工拼的 URL 会被签成
+ * {@code /svc-hall/oapi/...}，服务端剥掉 ctx 后两侧 target 不一致，<b>必然 401</b>。
+ * {@link YschOpenCall} 的 per-target base-path 与提供方 context-path 对齐（同 svc-hall
+ * {@code CmsSiteDirectoryImpl} 的既有范式）。<br><br>
+ * <b>错误语义</b>：业务失败信封 {@code code!=0} → {@code DException}（携带 OpenApiErrorCode，
+ * 办事大厅"不存在/未发布"= code 2）；传输/HTTP 失败 → {@code OpenApiException}；401/403 →
+ * {@code DException("验签失败")}。降级判定见 {@code SvcItemRemoteQuery}。<br><br>
+ * 目录未显式配置时回落 legacy {@code yh.svchall.base-url}（迁移期兼容）；两者皆无则构造期
+ * fail-fast——不给"沉默连不上 localhost"的假象。
  */
 @Component
 public class SvcHallClient {
 
     private static final Logger log = LoggerFactory.getLogger(SvcHallClient.class);
 
-    private final IDHttp http;
-    private final String baseUrl;
+    /** 服务目录命名目标（svc-hall 未晋升 PlatformService 枚举，按名直调） */
+    static final String DIRECTORY_KEY = "svchall";
 
-    public SvcHallClient(IDHttp http,
-                         @Value("${yh.svchall.base-url:http://localhost:8086}") String baseUrl) {
+    private static final String LEGACY_KEY = "yh.svchall.base-url";
+
+    private final YschOpenCall openCall;
+    private final IDHttp http;
+    private final String legacyBaseUrl;
+    private final boolean directoryResolved;
+
+    public SvcHallClient(YschOpenCall openCall,
+                         IDHttp http,
+                         @Value("${yh.svchall.base-url:}") String baseUrl) {
+        this.openCall = openCall;
         this.http = http;
-        this.baseUrl = baseUrl == null ? "" : trimTrailing(baseUrl);
+        this.directoryResolved = openCall != null && openCall.hasTarget(DIRECTORY_KEY);
+        this.legacyBaseUrl = trimTrailing(baseUrl == null ? "" : baseUrl.trim());
+        if (!directoryResolved && legacyBaseUrl.isEmpty()) {
+            throw new IllegalStateException("办事大厅调用地址未配置：请配置服务目录 yh.open.services."
+                    + DIRECTORY_KEY + "（推荐，容器直连完整 URL）或回落键 " + LEGACY_KEY);
+        }
+    }
+
+    /** 是否走服务目录命名目标（配置自检用） */
+    public boolean directoryResolved() {
+        return directoryResolved;
     }
 
     /** GET /oapi/svc/items → data（分页 + 三维筛选 + 关键词） */
     public JsonNode items(String siteCode, String objectKey, String categoryKey, Integer deptGroupId,
                           String keyword, Integer page, Integer pageSize) {
-        StringBuilder url = new StringBuilder(baseUrl + "/oapi/svc/items?siteCode=" + encode(siteCode));
-        append(url, "objectKey", objectKey);
-        append(url, "categoryKey", categoryKey);
-        append(url, "keyword", keyword);
+        Map<String, String> query = new LinkedHashMap<>();
+        put(query, "siteCode", siteCode);
+        put(query, "objectKey", objectKey);
+        put(query, "categoryKey", categoryKey);
+        put(query, "keyword", keyword);
         if (deptGroupId != null) {
-            append(url, "deptGroupId", String.valueOf(deptGroupId));
+            query.put("deptGroupId", String.valueOf(deptGroupId));
         }
         if (page != null) {
-            append(url, "page", String.valueOf(page));
+            query.put("page", String.valueOf(page));
         }
         if (pageSize != null) {
-            append(url, "pageSize", String.valueOf(pageSize));
+            query.put("pageSize", String.valueOf(pageSize));
         }
-        return http.get(url.toString(), JsonNode.class);
+        return get("/oapi/svc/items", query);
     }
 
     /** GET /oapi/svc/filters → data */
     public JsonNode filters(String siteCode) {
-        return http.get(baseUrl + "/oapi/svc/filters?siteCode=" + encode(siteCode), JsonNode.class);
+        Map<String, String> query = new LinkedHashMap<>();
+        put(query, "siteCode", siteCode);
+        return get("/oapi/svc/filters", query);
     }
 
     /** GET /oapi/svc/item/detail → data（itemId 或 itemCode 二选一） */
     public JsonNode detail(String siteCode, Integer itemId, String itemCode) {
-        StringBuilder url = new StringBuilder(baseUrl + "/oapi/svc/item/detail?siteCode=" + encode(siteCode));
+        Map<String, String> query = new LinkedHashMap<>();
+        put(query, "siteCode", siteCode);
         if (itemId != null) {
-            append(url, "itemId", String.valueOf(itemId));
+            query.put("itemId", String.valueOf(itemId));
         }
-        if (itemCode != null) {
-            append(url, "itemCode", itemCode);
-        }
-        return http.get(url.toString(), JsonNode.class);
+        put(query, "itemCode", itemCode);
+        return get("/oapi/svc/item/detail", query);
     }
 
     /** POST /oapi/svc/item/view（siteCode+itemCode 口径；fire-and-forget，失败仅 warn） */
     public void view(String siteCode, String itemCode) {
-        try {
-            http.post(baseUrl + "/oapi/svc/item/view?siteCode=" + encode(siteCode)
-                    + "&itemCode=" + encode(itemCode), null, JsonNode.class);
-        } catch (Exception e) {
-            log.warn("[cms] 办事大厅浏览量累加失败 siteCode={} itemCode={}：{}", siteCode, itemCode, e.getMessage());
-        }
+        Map<String, String> query = new LinkedHashMap<>();
+        put(query, "siteCode", siteCode);
+        put(query, "itemCode", itemCode);
+        safeView(query);
     }
 
     /** POST /oapi/svc/item/view（itemId 直取口径；fire-and-forget，失败仅 warn） */
@@ -78,33 +113,69 @@ public class SvcHallClient {
         if (itemId == null) {
             return;
         }
+        Map<String, String> query = new LinkedHashMap<>();
+        query.put("itemId", String.valueOf(itemId));
+        safeView(query);
+    }
+
+    private void safeView(Map<String, String> query) {
         try {
-            http.post(baseUrl + "/oapi/svc/item/view?itemId=" + itemId, null, JsonNode.class);
+            if (directoryResolved) {
+                openCall.post(DIRECTORY_KEY, "/oapi/svc/item/view", query, null, JsonNode.class);
+            } else {
+                http.post(legacyUrl("/oapi/svc/item/view", query), null, JsonNode.class);
+            }
         } catch (Exception e) {
-            log.warn("[cms] 办事大厅浏览量累加失败 itemId={}：{}", itemId, e.getMessage());
+            log.warn("[cms] 办事大厅浏览量累加失败 {}：{}", query, e.getMessage());
         }
     }
 
     /** GET /oapi/svc/item/attachments（itemId 直取；fileUrl 已绝对化） */
     public JsonNode attachments(Integer itemId) {
-        return http.get(baseUrl + "/oapi/svc/item/attachments?itemId=" + itemId, JsonNode.class);
+        Map<String, String> query = new LinkedHashMap<>();
+        query.put("itemId", String.valueOf(itemId));
+        return get("/oapi/svc/item/attachments", query);
     }
 
     /** GET /oapi/svc/item/related（itemId 直取：同类别已发布 Top N） */
     public JsonNode related(Integer itemId, Integer limit) {
-        return http.get(baseUrl + "/oapi/svc/item/related?itemId=" + itemId
-                + (limit != null ? "&limit=" + limit : ""), JsonNode.class);
+        Map<String, String> query = new LinkedHashMap<>();
+        query.put("itemId", String.valueOf(itemId));
+        if (limit != null) {
+            query.put("limit", String.valueOf(limit));
+        }
+        return get("/oapi/svc/item/related", query);
     }
 
-    private static void append(StringBuilder url, String key, String value) {
+    // ===== 出站（目录优先，legacy 回落）=====
+
+    private JsonNode get(String path, Map<String, String> query) {
+        if (directoryResolved) {
+            return openCall.get(DIRECTORY_KEY, path, query, JsonNode.class);
+        }
+        return http.get(legacyUrl(path, query), JsonNode.class);
+    }
+
+    /** legacy 形态：base-url + path + query（与原手工拼接的语义一致，保住既有调用方预期） */
+    private String legacyUrl(String path, Map<String, String> query) {
+        StringBuilder url = new StringBuilder(legacyBaseUrl).append(path);
+        boolean first = true;
+        for (Map.Entry<String, String> e : query.entrySet()) {
+            url.append(first ? '?' : '&').append(e.getKey()).append('=').append(encode(e.getValue()));
+            first = false;
+        }
+        return url.toString();
+    }
+
+    private static void put(Map<String, String> query, String key, String value) {
         if (value != null && !value.isEmpty()) {
-            url.append("&").append(key).append("=").append(encode(value));
+            query.put(key, value);
         }
     }
 
     private static String encode(String value) {
         try {
-            return java.net.URLEncoder.encode(value, java.nio.charset.StandardCharsets.UTF_8.name());
+            return URLEncoder.encode(value, StandardCharsets.UTF_8.name());
         } catch (Exception e) {
             return value;
         }
diff --git a/src/main/java/com/yunhai/cms/svcitem/service/impl/SvcItemRemoteQuery.java b/src/main/java/com/yunhai/cms/svcitem/service/impl/SvcItemRemoteQuery.java
index f71a8e1..aa61852 100644
--- a/src/main/java/com/yunhai/cms/svcitem/service/impl/SvcItemRemoteQuery.java
+++ b/src/main/java/com/yunhai/cms/svcitem/service/impl/SvcItemRemoteQuery.java
@@ -11,6 +11,8 @@ import com.yunhai.cms.svcitem.model.vo.SvcItemAttachmentVo;
 import com.yunhai.cms.svcitem.service.SvcItemQuery;
 import com.yunhai.platform.apistd.BizException;
 import com.yunhai.platform.http.DHttpException;
+import com.yunhai.platform.utils.exception.DException;
+import com.yunhai.platform.utils.exception.IErrorCode;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 
@@ -110,6 +112,15 @@ public class SvcItemRemoteQuery implements SvcItemQuery {
                 return null;
             }
             throw e;
+        } catch (RuntimeException e) {
+            // 目录路径（YschOpenCall）下的同义语义：业务失败信封 code!=0 → DException（携带
+            // OpenApiErrorCode，办事大厅"不存在/未发布"= 2）；传输/HTTP 失败 → OpenApiException。
+            // 降级口径与 legacy 分支逐字一致，见上方注释。
+            if (businessAbsent(e)) {
+                log.info("[cms] 办事大厅详情未取到 itemId={}：{}", itemId, e.getMessage());
+                return null;
+            }
+            throw e;
         }
         return toPortalItem(row);
     }
@@ -131,6 +142,11 @@ public class SvcItemRemoteQuery implements SvcItemQuery {
                 return result;
             }
             throw e;
+        } catch (RuntimeException e) {
+            if (businessAbsent(e)) {
+                return result;
+            }
+            throw e;
         }
         for (JsonNode rel : row.isArray() ? row : new ArrayList<JsonNode>()) {
             PortalServiceItem vo = new PortalServiceItem();
@@ -159,6 +175,11 @@ public class SvcItemRemoteQuery implements SvcItemQuery {
                 return result;
             }
             throw e;
+        } catch (RuntimeException e) {
+            if (businessAbsent(e)) {
+                return result;
+            }
+            throw e;
         }
         for (JsonNode att : row.isArray() ? row : new ArrayList<JsonNode>()) {
             SvcItemAttachmentVo vo = new SvcItemAttachmentVo();
@@ -179,6 +200,22 @@ public class SvcItemRemoteQuery implements SvcItemQuery {
 
     // ===== 装配 =====
 
+    /**
+     * "业务性缺失"判定（办事大厅 code=2 = 不存在/未发布）。两条出站路径的异常载体不同，
+     * 语义必须一致：legacy {@code IDHttp} → {@link DHttpException#getCode()} 为 int；
+     * 服务目录 {@code YschOpenCall} → {@link DException} 携带 {@code OpenApiErrorCode}。
+     */
+    private static boolean businessAbsent(RuntimeException e) {
+        if (e instanceof DHttpException) {
+            return ((DHttpException) e).getCode() == 2;
+        }
+        if (e instanceof DException) {
+            IErrorCode code = ((DException) e).getCode();
+            return code != null && code.getCode() == 2;
+        }
+        return false;
+    }
+
     private PortalServiceItem toPortalItem(JsonNode row) {
         PortalServiceItem vo = new PortalServiceItem();
         vo.setId(intVal(row, "id"));
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 4e6a9f1..1290966 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -66,16 +66,19 @@ yh:
     trusted-apps:
       "100018": "svc-hall-dev-secret-100018"
   open:
-    enabled: true
+    # 身份密钥唯一来源 = yh.app-auth（本文件 app-auth 段），open.* 副本已删
     base-host: http://base.yunhaixingtong.com
     base-path: /userbase
-    app-key: 100005
-    app-secret: 2c7885de594742cc840b8762910b2d2e
+    # 服务目录（子应用配置优化方案 §4.2）：跨服务出站唯一地址来源，命名目标走 SDK 门面 /
+    # YschOpenCall。svc-hall 未晋升 PlatformService 枚举，按名直调（完整 URL 拆 host+ctx，
+    # per-target base-path 与提供方 context-path 对齐 → 签名天然一致）。
+    # 容器直连形态（生产）：http://svc-hall-service:10007/svc-hall（网关无 /oapi 路由）。
+    services:
+      svchall: http://localhost:8086
   # 办事大厅（svc-hall）对接（V2.0 Part C.3）：门户 service/guide 数据源。
-  # 双向信任：CMS 出站签名用 yh.app-auth 身份（appKey=100005，办事大厅侧 trusted-apps 须含 100005）；
-  # 入站收 svc-hall 站点目录调用（appKey=100018，见上方 trusted-apps）。
-  svchall:
-    base-url: http://localhost:8086
+  # 双向信任：CMS 出站签名用 yh.app-auth 身份（appKey=100005，办事大厅侧须在 UserBase
+  # 注册表内可用）；入站收 svc-hall 站点目录调用（appKey=100018，见上方 trusted-apps）。
+  # 地址不再单独配置：见上方 yh.open.services.svchall（原 yh.svchall.base-url 已删）。
   # env-config 管理端运行时配置（免登录 GET /api/env-config?target=admin，数据源见
   # config/PropertyEnvConfigSource：聚合 starter 自动装配，有 bean 即注册端点）。
   # 本地无需配值（前端 dev 走 .env.dev）；线上值经环境变量 YH_ENV_CONFIG_SOURCE_ADMIN
diff --git a/src/test/java/com/yunhai/cms/svcitem/service/impl/SvcHallClientTest.java b/src/test/java/com/yunhai/cms/svcitem/service/impl/SvcHallClientTest.java
new file mode 100644
index 0000000..a196b13
--- /dev/null
+++ b/src/test/java/com/yunhai/cms/svcitem/service/impl/SvcHallClientTest.java
@@ -0,0 +1,205 @@
+package com.yunhai.cms.svcitem.service.impl;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.yunhai.platform.openapi.core.OpenApiException;
+import com.yunhai.platform.openapi.core.YschOpenCall;
+import com.yunhai.platform.utils.http.IDHttp;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.mockito.ArgumentCaptor;
+
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyNoInteractions;
+import static org.mockito.Mockito.when;
+
+/**
+ * CMS → 办事大厅（svc-hall）出站契约测试：跨服务调用统一走 SDK {@link YschOpenCall} 命名目标
+ * {@code svchall}（服务目录 {@code yh.open.services.svchall}），应用内不再保留专属地址键
+ * {@code yh.svchall.base-url}（《子应用配置优化方案》§4.2 零专属地址配置）。<br><br>
+ * 迁移动机（此前是四个服务里唯一手搓 URL 的跨服务主链路）：共享 {@code IDHttp} 的签名拦截器只剥
+ * {@code yh.open.base-path}（本应用=/userbase），而 svc-hall 部署带 context-path
+ * {@code /svc-hall}——手工拼出的 URL 会被签成 {@code /svc-hall/oapi/...}，服务端剥掉 ctx 后
+ * 两侧 target 不一致，**必然 401**。{@link YschOpenCall} 的 per-target base-path 与提供方
+ * context-path 对齐（同 svc-hall {@code CmsSiteDirectoryImpl} 的既有范式）。<br><br>
+ * 目录未显式配置时回落 legacy {@code yh.svchall.base-url}（迁移期兼容）；两者皆无则构造期
+ * fail-fast，不给"沉默连不上 localhost"的假象。
+ */
+@DisplayName("SvcHallClient - 走 SDK 服务目录（svchall）与 legacy 回落")
+class SvcHallClientTest {
+
+    private static final String TARGET = "svchall";
+    private static final String LEGACY_BASE = "http://svc-hall-service:10007/svc-hall";
+
+    private final ObjectMapper objectMapper = new ObjectMapper();
+
+    private YschOpenCall openCall;
+    private IDHttp http;
+
+    @BeforeEach
+    void setUp() {
+        openCall = mock(YschOpenCall.class);
+        http = mock(IDHttp.class);
+    }
+
+    private ObjectNode payload() {
+        ObjectNode node = objectMapper.createObjectNode();
+        node.put("total", 3);
+        return node;
+    }
+
+    @SuppressWarnings("unchecked")
+    private ArgumentCaptor<Map<String, String>> queryCaptor() {
+        return ArgumentCaptor.forClass(Map.class);
+    }
+
+    @Test
+    @DisplayName("目录已配 svchall：items 走命名目标 + 查询参数齐全，IDHttp 零交互")
+    void items_usesDirectoryTarget() {
+        when(openCall.hasTarget(TARGET)).thenReturn(true);
+        when(openCall.get(eq(TARGET), eq("/oapi/svc/items"), anyMap(), eq(JsonNode.class)))
+                .thenReturn(payload());
+
+        SvcHallClient client = new SvcHallClient(openCall, http, "");
+        JsonNode out = client.items("yhms", "obj1", "cat1", 8, "教师", 1, 10);
+
+        assertEquals(3, out.get("total").asInt());
+        verifyNoInteractions(http);
+
+        ArgumentCaptor<Map<String, String>> captor = queryCaptor();
+        verify(openCall).get(eq(TARGET), eq("/oapi/svc/items"), captor.capture(), eq(JsonNode.class));
+        Map<String, String> q = captor.getValue();
+        assertEquals("yhms", q.get("siteCode"));
+        assertEquals("obj1", q.get("objectKey"));
+        assertEquals("cat1", q.get("categoryKey"));
+        assertEquals("8", q.get("deptGroupId"));
+        assertEquals("教师", q.get("keyword"));
+        assertEquals("1", q.get("page"));
+        assertEquals("10", q.get("pageSize"));
+    }
+
+    @Test
+    @DisplayName("目录已配 svchall：空参数不下发（保持原 append 语义）")
+    void items_omitsBlankOptionalParams() {
+        when(openCall.hasTarget(TARGET)).thenReturn(true);
+        when(openCall.get(eq(TARGET), eq("/oapi/svc/items"), anyMap(), eq(JsonNode.class)))
+                .thenReturn(payload());
+
+        new SvcHallClient(openCall, http, "").items("yhms", null, "", null, "  ", null, null);
+
+        ArgumentCaptor<Map<String, String>> captor = queryCaptor();
+        verify(openCall).get(eq(TARGET), eq("/oapi/svc/items"), captor.capture(), eq(JsonNode.class));
+        Map<String, String> q = captor.getValue();
+        assertEquals("yhms", q.get("siteCode"));
+        assertTrue(!q.containsKey("objectKey"));
+        assertTrue(!q.containsKey("categoryKey"));
+        assertTrue(!q.containsKey("deptGroupId"));
+        assertTrue(!q.containsKey("page"));
+        assertTrue(!q.containsKey("pageSize"));
+    }
+
+    @Test
+    @DisplayName("目录已配 svchall：detail 走命名目标（itemId 口径）")
+    void detail_usesDirectoryTarget() {
+        when(openCall.hasTarget(TARGET)).thenReturn(true);
+        when(openCall.get(eq(TARGET), eq("/oapi/svc/item/detail"), anyMap(), eq(JsonNode.class)))
+                .thenReturn(payload());
+
+        JsonNode out = new SvcHallClient(openCall, http, "").detail("yhms", 1, null);
+
+        assertEquals(3, out.get("total").asInt());
+        ArgumentCaptor<Map<String, String>> captor = queryCaptor();
+        verify(openCall).get(eq(TARGET), eq("/oapi/svc/item/detail"), captor.capture(), eq(JsonNode.class));
+        assertEquals("1", captor.getValue().get("itemId"));
+        assertTrue(!captor.getValue().containsKey("itemCode"));
+    }
+
+    @Test
+    @DisplayName("目录已配 svchall：浏览量累加 fire-and-forget（出站失败不得冒泡）")
+    void view_isFireAndForget() {
+        when(openCall.hasTarget(TARGET)).thenReturn(true);
+        when(openCall.post(eq(TARGET), eq("/oapi/svc/item/view"), anyMap(), eq(null), eq(JsonNode.class)))
+                .thenThrow(new OpenApiException("OpenAPI request failed: ioError"));
+
+        SvcHallClient client = new SvcHallClient(openCall, http, "");
+        client.view("yhms", "teacher-onboard");
+        client.viewByItemId(1);
+
+        verify(openCall, org.mockito.Mockito.times(2))
+                .post(eq(TARGET), eq("/oapi/svc/item/view"), anyMap(), eq(null), eq(JsonNode.class));
+    }
+
+    @Test
+    @DisplayName("viewByItemId(null)：不出站")
+    void viewByItemId_nullIsNoop() {
+        when(openCall.hasTarget(TARGET)).thenReturn(true);
+        new SvcHallClient(openCall, http, "").viewByItemId(null);
+        verify(openCall, org.mockito.Mockito.never())
+                .post(anyString(), anyString(), anyMap(), eq(null), eq(JsonNode.class));
+        verifyNoInteractions(http);
+    }
+
+    @Test
+    @DisplayName("目录未配：回落 legacy yh.svchall.base-url（迁移期兼容）")
+    void fallsBackToLegacyBaseUrl() {
+        when(openCall.hasTarget(TARGET)).thenReturn(false);
+        when(http.get(anyString(), eq(JsonNode.class))).thenReturn(payload());
+
+        JsonNode out = new SvcHallClient(openCall, http, LEGACY_BASE + "/").items(
+                "yhms", null, null, null, null, 1, 10);
+
+        assertEquals(3, out.get("total").asInt());
+        ArgumentCaptor<String> url = ArgumentCaptor.forClass(String.class);
+        verify(http).get(url.capture(), eq(JsonNode.class));
+        assertTrue(url.getValue().startsWith(LEGACY_BASE + "/oapi/svc/items?siteCode=yhms"), url.getValue());
+        // 回落分支不得触达目录调用（构造期 hasTarget 探测除外）
+        verify(openCall, org.mockito.Mockito.never())
+                .get(eq(TARGET), anyString(), anyMap(), eq(JsonNode.class));
+    }
+
+    @Test
+    @DisplayName("目录未配且 legacy 键为空：构造期 fail-fast，文案指向服务目录配置键")
+    void misconfiguredFailsFast() {
+        when(openCall.hasTarget(TARGET)).thenReturn(false);
+
+        IllegalStateException e = assertThrows(IllegalStateException.class,
+                () -> new SvcHallClient(openCall, http, ""));
+        assertTrue(e.getMessage().contains("yh.open.services." + TARGET), e.getMessage());
+        assertTrue(e.getMessage().contains("yh.svchall.base-url"), e.getMessage());
+    }
+
+    @Test
+    @DisplayName("related/attachments：目录走命名目标且路径正确")
+    void relatedAndAttachments_useDirectoryTarget() {
+        when(openCall.hasTarget(TARGET)).thenReturn(true);
+        when(openCall.get(eq(TARGET), eq("/oapi/svc/item/related"), anyMap(), eq(JsonNode.class)))
+                .thenReturn(payload());
+        when(openCall.get(eq(TARGET), eq("/oapi/svc/item/attachments"), anyMap(), eq(JsonNode.class)))
+                .thenReturn(payload());
+
+        SvcHallClient client = new SvcHallClient(openCall, http, "");
+        assertEquals(3, client.related(1, 5).get("total").asInt());
+        assertEquals(3, client.attachments(1).get("total").asInt());
+
+        ArgumentCaptor<Map<String, String>> captor = queryCaptor();
+        verify(openCall).get(eq(TARGET), eq("/oapi/svc/item/related"), captor.capture(), eq(JsonNode.class));
+        assertEquals("5", captor.getValue().get("limit"));
+        assertNull(captor.getValue().get("itemCode"));
+        verifyNoInteractions(http);
+    }
+
+    private static <T> T anyMap() {
+        return org.mockito.ArgumentMatchers.any();
+    }
+}
diff --git a/src/test/java/com/yunhai/cms/svcitem/service/impl/SvcItemRemoteQueryTest.java b/src/test/java/com/yunhai/cms/svcitem/service/impl/SvcItemRemoteQueryTest.java
index e13ba6c..97ce8e8 100644
--- a/src/test/java/com/yunhai/cms/svcitem/service/impl/SvcItemRemoteQueryTest.java
+++ b/src/test/java/com/yunhai/cms/svcitem/service/impl/SvcItemRemoteQueryTest.java
@@ -6,6 +6,9 @@ import com.yunhai.cms.entity.CmsSite;
 import com.yunhai.cms.repository.CmsSiteRepository;
 import com.yunhai.cms.svcitem.model.vo.PortalServiceItem;
 import com.yunhai.platform.http.DHttpException;
+import com.yunhai.platform.openapi.core.OpenApiErrorCode;
+import com.yunhai.platform.openapi.core.OpenApiException;
+import com.yunhai.platform.utils.exception.DException;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
@@ -96,4 +99,45 @@ class SvcItemRemoteQueryTest {
         assertEquals(Integer.valueOf(1), vo.getOnlineFlag());
         assertEquals("https://x.example/apply", vo.getApplyUrl());
     }
+
+    // ===== 走 SDK 服务目录后的错误语义（YschOpenCall 承载，替代 IDHttp）=====
+    // 目录路径下出站异常不再是 DHttpException：业务失败信封 code!=0 → DException（code 载体
+    // 为 OpenApiErrorCode，非本地枚举），传输/HTTP 失败 → OpenApiException。
+    // 降级语义必须逐字保持：业务 code=2 → 404 哨兵/空集；其余一律上抛。
+
+    @Test
+    @DisplayName("portalItem：目录路径下业务 code=2（DException）→ null（门户 404 语义保持）")
+    void portalItem_directoryPathBusinessMissing_returnsNull() {
+        when(client.detail(anyString(), anyInt(), isNull()))
+                .thenThrow(new DException(new OpenApiErrorCode(2, "事项不存在或未发布")));
+        assertNull(query.portalItem(1001, 1));
+    }
+
+    @Test
+    @DisplayName("portalItem：目录路径下传输失败（OpenApiException）→ 上抛（不混入 404）")
+    void portalItem_directoryPathTransportFailure_propagates() {
+        when(client.detail(anyString(), anyInt(), isNull()))
+                .thenThrow(new OpenApiException("OpenAPI request failed: ioError"));
+        assertThrows(OpenApiException.class, () -> query.portalItem(1001, 1));
+    }
+
+    @Test
+    @DisplayName("portalItem：目录路径下非 2 业务码（如 4）→ 上抛")
+    void portalItem_directoryPathOtherBusinessCode_propagates() {
+        when(client.detail(anyString(), anyInt(), isNull()))
+                .thenThrow(new DException(new OpenApiErrorCode(4, "参数错误")));
+        assertThrows(DException.class, () -> query.portalItem(1001, 1));
+    }
+
+    @Test
+    @DisplayName("related/attachments：目录路径下业务 code=2 → 空集")
+    void relatedAndAttachments_directoryPathBusinessMissing_empty() {
+        when(client.related(anyInt(), anyInt()))
+                .thenThrow(new DException(new OpenApiErrorCode(2, "不存在")));
+        assertEquals(0, query.relatedItems(1, 1001, "cat", 5).size());
+
+        when(client.attachments(anyInt()))
+                .thenThrow(new DException(new OpenApiErrorCode(2, "不存在")));
+        assertEquals(0, query.attachments(1001).size());
+    }
 }
diff --git a/src/test/resources/application.yml b/src/test/resources/application.yml
index ef10ade..d485a35 100644
--- a/src/test/resources/application.yml
+++ b/src/test/resources/application.yml
@@ -61,11 +61,12 @@ yh:
     trusted-apps:
       "100018": "svc-hall-dev-secret-100018"
   open:
-    enabled: true
     base-host: http://base.yunhaixingtong.com
     base-path: /userbase
-    app-key: 100XXX
-    app-secret: xxxxxxxx
+    # 服务目录：SvcHallClient 构造期要求「目录键 或 legacy yh.svchall.base-url」至少一个
+    # （两者都缺即 fail-fast）——IT 起 Spring 上下文时必须有值。
+    services:
+      svchall: http://localhost:8086
 
 cms:
   # 超管判定：BoaUser.type == 1（夹具 TestUsers.superAdmin 已对齐）；校级角色经 BoaRoleInfo.schId 匹配