client/android/build.gradle

@@ -1,5 +1,8 @@
 allprojects {
     repositories {
+        // 国内镜像优先(见 settings.gradle 同注);原仓库保留作 fallback。
+        maven { url "https://maven.aliyun.com/repository/google" }
+        maven { url "https://maven.aliyun.com/repository/public" }
         google()
         mavenCentral()
     }

client/android/gradle/wrapper/gradle-wrapper.properties

@@ -2,4 +2,6 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
+# 国内镜像:services.gradle.org 被 GFW 墙(SSL 重置),CI runner 在墙内下载发行版会失败。
+# 腾讯云 gradle 镜像提供同一份 zip。见 client/android/{settings,build}.gradle 的 maven 镜像同理。
+distributionUrl=https\://mirrors.cloud.tencent.com/gradle/gradle-8.7-bin.zip

client/android/settings.gradle

@@ -10,6 +10,11 @@ pluginManagement {
     includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
 
     repositories {
+        // 国内镜像优先(CI runner 在墙内,直连 google/central/gradlePluginPortal 会被 GFW 重置);
+        // 原仓库保留作 fallback。与 deploy-client.yml 的 GOPROXY/PUB 镜像同理。
+        maven { url "https://maven.aliyun.com/repository/google" }
+        maven { url "https://maven.aliyun.com/repository/public" }
+        maven { url "https://maven.aliyun.com/repository/gradle-plugin" }
         google()
         mavenCentral()
         gradlePluginPortal()