diff --git a/client/macos/PacketTunnel/PacketTunnelProvider.swift b/client/macos/PacketTunnel/PacketTunnelProvider.swift
index 9c2fe77..f1cd590 100644
--- a/client/macos/PacketTunnel/PacketTunnelProvider.swift
+++ b/client/macos/PacketTunnel/PacketTunnelProvider.swift
@@ -444,36 +444,30 @@ final class StatsCollector: NSObject {
         clashTimer = timer
     }
 
+    // 与 Windows(kernel_process.dart)完全同策略:
+    //  · 显示源 = /proxies 里各 URLTest 成员的 history.last.delay(每拍读,缓存住,稳定)。
+    //  · /group/<name>/delay 只为「让内核重测并写进 history」,其结果也顺手缓存(双保险);
+    //    单次探测失败不影响显示——下一拍仍读到 history 里上次成功的值。
     private func pollClash() {
-        // 先取组名(URLTest 类,跳过 GLOBAL 选择器),再对每组主动跑 /group/<name>/delay 取
-        // 内核实测延迟。sing-box 的 /proxies 不带 history,故只能 active 取;成功就缓存,超时/空
-        // 不覆盖旧值 → 显示稳定(congested 链路上探测时好时坏也不丢延迟)。
         clashGet("/proxies", query: nil) { [weak self] obj, raw in
             guard let self else { return }
+            let hist = StatsCollector.extractUrltestResults(obj)
             let groups = StatsCollector.extractUrltestGroups(obj).filter { $0 != "GLOBAL" }
             self.queue.async {
-                if groups.isEmpty { self.setDiag("groups=[] raw=\(raw.prefix(100))") }
+                if !hist.isEmpty {
+                    self.cacheUrltest(hist, src: "hist")
+                } else {
+                    self.setDiag("hist= groups=\(groups) raw=\(raw.prefix(70))")
+                }
                 for name in groups {
                     self.clashGet("/group/\(name)/delay",
                                   query: ["url": "http://www.gstatic.com/generate_204",
                                           "timeout": "5000"]) { [weak self] dobj, draw in
                         guard let self else { return }
-                        var urltest: [(tag: String, delayMs: Int)] = []
-                        if let dict = dobj as? [String: Any] {
-                            for (tag, v) in dict {
-                                if let d = (v as? NSNumber)?.intValue, d > 0 {
-                                    urltest.append((tag: tag, delayMs: d))
-                                }
-                            }
-                        }
+                        let active = StatsCollector.parseDelayMap(dobj)
                         self.queue.async {
-                            self.lock.lock()
-                            if !urltest.isEmpty {
-                                self.latestUrltest = urltest
-                                self.latest["urltestResults"] = urltest.map { ["tag": $0.tag, "delayMs": $0.delayMs] }
-                            }
-                            self.latest["diag"] = "d(\(name)) n=\(urltest.count) raw=\(draw.prefix(80))"
-                            self.lock.unlock()
+                            if !active.isEmpty { self.cacheUrltest(active, src: "active") }
+                            else { self.setDiag("active(\(name)) empty raw=\(draw.prefix(70))") }
                         }
                     }
                 }
@@ -481,6 +475,16 @@ final class StatsCollector: NSObject {
         }
     }
 
+    /// 缓存延迟(从 history 或 active 任一来源),非空才更新——失败/空不覆盖旧值。
+    private func cacheUrltest(_ list: [(tag: String, delayMs: Int)], src: String) {
+        guard !list.isEmpty else { return }
+        lock.lock()
+        latestUrltest = list
+        latest["urltestResults"] = list.map { ["tag": $0.tag, "delayMs": $0.delayMs] }
+        latest["diag"] = "\(src)=\(list.map { "\($0.tag):\($0.delayMs)" }.joined(separator: ","))"
+        lock.unlock()
+    }
+
     private func setDiag(_ s: String) {
         lock.lock(); latest["diag"] = s; lock.unlock()
     }
@@ -517,6 +521,43 @@ final class StatsCollector: NSObject {
         }
         return names
     }
+
+    /// 从 /proxies 提取各 URLTest/Fallback 组成员的最新 history 延迟(与 Windows
+    /// extractUrltestResults 字段完全一致:group.all → member.history.last.delay)。
+    static func extractUrltestResults(_ obj: Any?) -> [(tag: String, delayMs: Int)] {
+        guard let root = obj as? [String: Any],
+              let proxies = root["proxies"] as? [String: Any] else { return [] }
+        var results: [(tag: String, delayMs: Int)] = []
+        for (_, v) in proxies {
+            guard let group = v as? [String: Any],
+                  let type = group["type"] as? String, type == "URLTest" || type == "Fallback",
+                  let members = group["all"] as? [Any] else { continue }
+            for m in members {
+                guard let tag = m as? String,
+                      let member = proxies[tag] as? [String: Any],
+                      let history = member["history"] as? [Any], !history.isEmpty,
+                      let last = history.last as? [String: Any],
+                      let delay = (last["delay"] as? NSNumber)?.intValue, delay > 0 else { continue }
+                results.append((tag: tag, delayMs: delay))
+            }
+        }
+        return results
+    }
+
+    /// 解析 /group/<name>/delay 的 {tag: ms} 响应(含嵌套 {tag:{delay:ms}}),只留正延迟。
+    static func parseDelayMap(_ obj: Any?) -> [(tag: String, delayMs: Int)] {
+        guard let dict = obj as? [String: Any] else { return [] }
+        var out: [(tag: String, delayMs: Int)] = []
+        for (tag, v) in dict {
+            if let d = (v as? NSNumber)?.intValue, d > 0 {
+                out.append((tag: tag, delayMs: d))
+            } else if let inner = v as? [String: Any],
+                      let d = (inner["delay"] as? NSNumber)?.intValue, d > 0 {
+                out.append((tag: tag, delayMs: d))
+            }
+        }
+        return out
+    }
 }
 
 extension StatsCollector: LibboxCommandClientHandlerProtocol {
diff --git a/client/macos/Runner.xcodeproj/project.pbxproj b/client/macos/Runner.xcodeproj/project.pbxproj
index fff4579..a9206ec 100644
--- a/client/macos/Runner.xcodeproj/project.pbxproj
+++ b/client/macos/Runner.xcodeproj/project.pbxproj
@@ -659,7 +659,7 @@
 			baseConfigurationReference = C57BBFD43F9175D1E23685EF /* Pods-RunnerTests.debug.xcconfig */;
 			buildSettings = {
 				BUNDLE_LOADER = "$(TEST_HOST)";
-				CURRENT_PROJECT_VERSION = 50;
+				CURRENT_PROJECT_VERSION = 51;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.pangolin.pangolin.RunnerTests;
@@ -674,7 +674,7 @@
 			baseConfigurationReference = F8904897A48DC81799B8752E /* Pods-RunnerTests.release.xcconfig */;
 			buildSettings = {
 				BUNDLE_LOADER = "$(TEST_HOST)";
-				CURRENT_PROJECT_VERSION = 50;
+				CURRENT_PROJECT_VERSION = 51;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.pangolin.pangolin.RunnerTests;
@@ -689,7 +689,7 @@
 			baseConfigurationReference = B21E68FC1F5D33DD67A0DF5E /* Pods-RunnerTests.profile.xcconfig */;
 			buildSettings = {
 				BUNDLE_LOADER = "$(TEST_HOST)";
-				CURRENT_PROJECT_VERSION = 50;
+				CURRENT_PROJECT_VERSION = 51;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.pangolin.pangolin.RunnerTests;
@@ -960,7 +960,7 @@
 				CODE_SIGN_ENTITLEMENTS = PacketTunnel/PacketTunnel.entitlements;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 50;
+				CURRENT_PROJECT_VERSION = 51;
 				DEVELOPMENT_TEAM = BYL4KQHMTN;
 				ENABLE_APP_SANDBOX = YES;
 				ENABLE_HARDENED_RUNTIME = YES;
@@ -1010,7 +1010,7 @@
 				CODE_SIGN_ENTITLEMENTS = PacketTunnel/PacketTunnel.entitlements;
 				CODE_SIGN_IDENTITY = "Developer ID Application";
 				CODE_SIGN_STYLE = Manual;
-				CURRENT_PROJECT_VERSION = 50;
+				CURRENT_PROJECT_VERSION = 51;
 				DEVELOPMENT_TEAM = BYL4KQHMTN;
 				ENABLE_APP_SANDBOX = YES;
 				ENABLE_HARDENED_RUNTIME = YES;
@@ -1059,7 +1059,7 @@
 				CODE_SIGN_ENTITLEMENTS = PacketTunnel/PacketTunnel.entitlements;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 50;
+				CURRENT_PROJECT_VERSION = 51;
 				DEVELOPMENT_TEAM = BYL4KQHMTN;
 				ENABLE_APP_SANDBOX = YES;
 				ENABLE_HARDENED_RUNTIME = YES;