diff --git a/.github/scripts/build-ios-release.sh b/.github/scripts/build-ios-release.sh
new file mode 100644
index 0000000..215c03a
--- /dev/null
+++ b/.github/scripts/build-ios-release.sh
@@ -0,0 +1,174 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "$0")/../.." && pwd)"
+PROJECT_NAME="GdeiAssistant-iOS"
+PROJECT_FILE="${PROJECT_NAME}.xcodeproj"
+SCHEME_NAME="GdeiAssistant-iOS"
+BUNDLE_ID="${IOS_APP_BUNDLE_ID:-cn.gdeiassistant.GdeiAssistant-iOS}"
+ARCHIVE_PATH="${IOS_ARCHIVE_PATH:-$RUNNER_TEMP/${PROJECT_NAME}.xcarchive}"
+EXPORT_PATH="${IOS_EXPORT_PATH:-$RUNNER_TEMP/ios-export}"
+EXPORT_OPTIONS_PLIST="${RUNNER_TEMP:-/tmp}/ExportOptions.plist"
+KEYCHAIN_PATH="${RUNNER_TEMP:-/tmp}/ios-release.keychain-db"
+CERTIFICATE_PATH="${RUNNER_TEMP:-/tmp}/ios-distribution.p12"
+PROFILE_PATH="${RUNNER_TEMP:-/tmp}/ios-release.mobileprovision"
+PROFILE_PLIST="${RUNNER_TEMP:-/tmp}/ios-release-profile.plist"
+UPLOAD_TO_TESTFLIGHT="${IOS_UPLOAD_TO_TESTFLIGHT:-true}"
+ORIGINAL_DEFAULT_KEYCHAIN=""
+ORIGINAL_KEYCHAINS=""
+
+require_env() {
+  local name="$1"
+  if [[ -z "${!name:-}" ]]; then
+    echo "::error::$name is required"
+    exit 1
+  fi
+}
+
+decode_base64() {
+  if printf '' | base64 --decode >/dev/null 2>&1; then
+    base64 --decode
+  else
+    base64 -D
+  fi
+}
+
+require_env IOS_CERTIFICATE_P12_BASE64
+require_env IOS_CERTIFICATE_PASSWORD
+require_env IOS_PROVISIONING_PROFILE_BASE64
+require_env IOS_DEVELOPMENT_TEAM
+require_env IOS_VERSION_NAME
+require_env IOS_BUILD_NUMBER
+
+if [[ "$UPLOAD_TO_TESTFLIGHT" == "true" ]]; then
+  require_env APP_STORE_CONNECT_API_KEY_ID
+  require_env APP_STORE_CONNECT_ISSUER_ID
+  require_env APP_STORE_CONNECT_API_KEY_BASE64
+fi
+
+cleanup() {
+  if [[ -n "$ORIGINAL_DEFAULT_KEYCHAIN" ]]; then
+    security default-keychain -d user -s "$ORIGINAL_DEFAULT_KEYCHAIN" >/dev/null 2>&1 || true
+  fi
+  if [[ -n "$ORIGINAL_KEYCHAINS" ]]; then
+    # shellcheck disable=SC2086
+    security list-keychains -d user -s $ORIGINAL_KEYCHAINS >/dev/null 2>&1 || true
+  fi
+  security delete-keychain "$KEYCHAIN_PATH" >/dev/null 2>&1 || true
+}
+trap cleanup EXIT
+
+cd "$ROOT_DIR"
+
+if [[ ! -d "${DEVELOPER_DIR:-}" ]]; then
+  echo "::error::DEVELOPER_DIR must point to a full Xcode installation"
+  exit 1
+fi
+
+xcodebuild -version
+
+printf '%s' "$IOS_CERTIFICATE_P12_BASE64" | decode_base64 > "$CERTIFICATE_PATH"
+printf '%s' "$IOS_PROVISIONING_PROFILE_BASE64" | decode_base64 > "$PROFILE_PATH"
+security cms -D -i "$PROFILE_PATH" > "$PROFILE_PLIST"
+
+PROFILE_UUID="$(/usr/libexec/PlistBuddy -c 'Print UUID' "$PROFILE_PLIST")"
+PROFILE_NAME="$(/usr/libexec/PlistBuddy -c 'Print Name' "$PROFILE_PLIST")"
+PROFILE_TEAM="$(/usr/libexec/PlistBuddy -c 'Print TeamIdentifier:0' "$PROFILE_PLIST")"
+
+if [[ "$PROFILE_TEAM" != "$IOS_DEVELOPMENT_TEAM" ]]; then
+  echo "::error::Provisioning profile team $PROFILE_TEAM does not match IOS_DEVELOPMENT_TEAM $IOS_DEVELOPMENT_TEAM"
+  exit 1
+fi
+
+KEYCHAIN_PASSWORD="$(uuidgen)"
+ORIGINAL_DEFAULT_KEYCHAIN="$(security default-keychain -d user | tr -d '"')"
+ORIGINAL_KEYCHAINS="$(security list-keychains -d user | tr -d '"')"
+security create-keychain -p "$KEYCHAIN_PASSWORD" "$KEYCHAIN_PATH"
+security set-keychain-settings -lut 21600 "$KEYCHAIN_PATH"
+security unlock-keychain -p "$KEYCHAIN_PASSWORD" "$KEYCHAIN_PATH"
+security default-keychain -d user -s "$KEYCHAIN_PATH"
+# shellcheck disable=SC2086
+security list-keychains -d user -s "$KEYCHAIN_PATH" $ORIGINAL_KEYCHAINS
+security import "$CERTIFICATE_PATH" \
+  -k "$KEYCHAIN_PATH" \
+  -P "$IOS_CERTIFICATE_PASSWORD" \
+  -T /usr/bin/codesign \
+  -T /usr/bin/security
+security set-key-partition-list \
+  -S apple-tool:,apple:,codesign: \
+  -s \
+  -k "$KEYCHAIN_PASSWORD" \
+  "$KEYCHAIN_PATH"
+
+mkdir -p "$HOME/Library/MobileDevice/Provisioning Profiles"
+cp "$PROFILE_PATH" "$HOME/Library/MobileDevice/Provisioning Profiles/${PROFILE_UUID}.mobileprovision"
+
+python3 - "$EXPORT_OPTIONS_PLIST" "$BUNDLE_ID" "$PROFILE_NAME" "$IOS_DEVELOPMENT_TEAM" <<'PY'
+import plistlib
+import sys
+
+export_options_path, bundle_id, profile_name, team_id = sys.argv[1:5]
+export_options = {
+    "destination": "export",
+    "method": "app-store-connect",
+    "provisioningProfiles": {bundle_id: profile_name},
+    "signingCertificate": "Apple Distribution",
+    "signingStyle": "manual",
+    "stripSwiftSymbols": True,
+    "teamID": team_id,
+    "uploadSymbols": True,
+}
+
+with open(export_options_path, "wb") as plist_file:
+    plistlib.dump(export_options, plist_file)
+PY
+
+rm -rf "$ARCHIVE_PATH" "$EXPORT_PATH"
+mkdir -p "$EXPORT_PATH"
+
+xcodebuild archive \
+  -project "$PROJECT_FILE" \
+  -scheme "$SCHEME_NAME" \
+  -configuration Release \
+  -destination "generic/platform=iOS" \
+  -archivePath "$ARCHIVE_PATH" \
+  DEVELOPMENT_TEAM="$IOS_DEVELOPMENT_TEAM" \
+  CODE_SIGN_STYLE=Manual \
+  CODE_SIGNING_ALLOWED=YES \
+  CODE_SIGNING_REQUIRED=YES \
+  PRODUCT_BUNDLE_IDENTIFIER="$BUNDLE_ID" \
+  PROVISIONING_PROFILE_SPECIFIER="$PROFILE_NAME" \
+  MARKETING_VERSION="$IOS_VERSION_NAME" \
+  CURRENT_PROJECT_VERSION="$IOS_BUILD_NUMBER"
+
+xcodebuild -exportArchive \
+  -archivePath "$ARCHIVE_PATH" \
+  -exportPath "$EXPORT_PATH" \
+  -exportOptionsPlist "$EXPORT_OPTIONS_PLIST"
+
+IPA_PATH="$(find "$EXPORT_PATH" -maxdepth 1 -name '*.ipa' -print -quit)"
+if [[ -z "$IPA_PATH" ]]; then
+  echo "::error::No IPA was exported to $EXPORT_PATH"
+  exit 1
+fi
+
+echo "Exported IPA: $IPA_PATH"
+
+if [[ "$UPLOAD_TO_TESTFLIGHT" != "true" ]]; then
+  echo "Skipping TestFlight upload because IOS_UPLOAD_TO_TESTFLIGHT is not true."
+  exit 0
+fi
+
+AUTH_KEY_DIR="$HOME/.appstoreconnect/private_keys"
+AUTH_KEY_PATH="$AUTH_KEY_DIR/AuthKey_${APP_STORE_CONNECT_API_KEY_ID}.p8"
+mkdir -p "$AUTH_KEY_DIR"
+printf '%s' "$APP_STORE_CONNECT_API_KEY_BASE64" | decode_base64 > "$AUTH_KEY_PATH"
+chmod 600 "$AUTH_KEY_PATH"
+
+xcrun altool --upload-app \
+  --type ios \
+  --file "$IPA_PATH" \
+  --apiKey "$APP_STORE_CONNECT_API_KEY_ID" \
+  --apiIssuer "$APP_STORE_CONNECT_ISSUER_ID" \
+  --show-progress
diff --git a/.github/workflows/ios-release.yml b/.github/workflows/ios-release.yml
new file mode 100644
index 0000000..73e3374
--- /dev/null
+++ b/.github/workflows/ios-release.yml
@@ -0,0 +1,78 @@
+name: iOS TestFlight Release
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: iOS marketing version, for example 1.0.1
+        required: true
+        default: "1.0"
+        type: string
+      build_number:
+        description: iOS build number
+        required: true
+        default: "1"
+        type: string
+      upload_to_testflight:
+        description: Upload the exported IPA to TestFlight
+        required: true
+        default: true
+        type: boolean
+
+jobs:
+  testflight:
+    name: Build and Upload
+    runs-on: macos-15
+    environment: ios-production
+    permissions:
+      contents: read
+    env:
+      DEVELOPER_DIR: /Applications/Xcode_16.4.app/Contents/Developer
+      IOS_APP_BUNDLE_ID: ${{ vars.IOS_APP_BUNDLE_ID || 'cn.gdeiassistant.GdeiAssistant-iOS' }}
+      IOS_VERSION_NAME: ${{ inputs.version }}
+      IOS_BUILD_NUMBER: ${{ inputs.build_number }}
+      IOS_UPLOAD_TO_TESTFLIGHT: ${{ inputs.upload_to_testflight }}
+      IOS_ARCHIVE_PATH: ${{ runner.temp }}/GdeiAssistant-iOS.xcarchive
+      IOS_EXPORT_PATH: ${{ runner.temp }}/ios-export
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Select pinned Xcode
+        run: |
+          if [[ ! -d "$DEVELOPER_DIR" ]]; then
+            echo "Expected Xcode not found: $DEVELOPER_DIR"
+            ls -d /Applications/Xcode*.app || true
+            exit 1
+          fi
+          xcodebuild -version
+
+      - name: Run Swift style checks
+        run: |
+          chmod +x Tools/check_style.sh
+          ./Tools/check_style.sh
+
+      - name: Build and upload release
+        env:
+          IOS_CERTIFICATE_P12_BASE64: ${{ secrets.IOS_CERTIFICATE_P12_BASE64 }}
+          IOS_CERTIFICATE_PASSWORD: ${{ secrets.IOS_CERTIFICATE_PASSWORD }}
+          IOS_PROVISIONING_PROFILE_BASE64: ${{ secrets.IOS_PROVISIONING_PROFILE_BASE64 }}
+          IOS_DEVELOPMENT_TEAM: ${{ secrets.IOS_DEVELOPMENT_TEAM }}
+          APP_STORE_CONNECT_API_KEY_ID: ${{ secrets.APP_STORE_CONNECT_API_KEY_ID }}
+          APP_STORE_CONNECT_ISSUER_ID: ${{ secrets.APP_STORE_CONNECT_ISSUER_ID }}
+          APP_STORE_CONNECT_API_KEY_BASE64: ${{ secrets.APP_STORE_CONNECT_API_KEY_BASE64 }}
+        run: |
+          chmod +x .github/scripts/build-ios-release.sh
+          .github/scripts/build-ios-release.sh
+
+      - name: Upload IPA artifact
+        if: always()
+        uses: actions/upload-artifact@v7
+        with:
+          name: ios-release-${{ inputs.version }}-${{ inputs.build_number }}
+          path: |
+            ${{ runner.temp }}/ios-export/*.ipa
+            ${{ runner.temp }}/GdeiAssistant-iOS.xcarchive/dSYMs
+          if-no-files-found: ignore
+          retention-days: 30
diff --git a/GdeiAssistant-iOS/Core/Config/AppEnvironment.swift b/GdeiAssistant-iOS/Core/Config/AppEnvironment.swift
index abc3051..099c1fd 100644
--- a/GdeiAssistant-iOS/Core/Config/AppEnvironment.swift
+++ b/GdeiAssistant-iOS/Core/Config/AppEnvironment.swift
@@ -54,13 +54,14 @@ final class AppEnvironment: ObservableObject {
         clientType: String? = nil
     ) {
         let resolvedIsDebug = isDebug ?? _isDebugAssertConfiguration()
-        self.isDebug = resolvedIsDebug
-        self.clientType = clientType ?? AppConstants.API.clientType
-        self.networkEnvironment = Self.sanitizedNetworkEnvironment(
+        let resolvedNetworkEnvironment = Self.sanitizedNetworkEnvironment(
             networkEnvironment,
             isDebug: resolvedIsDebug
         )
-        self.baseURL = self.networkEnvironment.baseURL
+        self.isDebug = resolvedIsDebug
+        self.clientType = clientType ?? AppConstants.API.clientType
+        self.networkEnvironment = resolvedNetworkEnvironment
+        self.baseURL = resolvedNetworkEnvironment.baseURL
         self.dataSourceMode = Self.sanitizedDataSourceMode(
             dataSourceMode,
             isDebug: resolvedIsDebug
diff --git a/README.md b/README.md
index 710a956..b299371 100644
--- a/README.md
+++ b/README.md
@@ -212,7 +212,29 @@ xcodebuild -project GdeiAssistant-iOS.xcodeproj \
 CODE_SIGNING_ALLOWED=NO CODE_SIGNING_REQUIRED=NO build
 ```
 
-### 3. 运行方式
+### 3. 发布 TestFlight
+
+仓库提供 `iOS TestFlight Release` GitHub Actions 手动工作流，用于签名归档、
+导出 IPA，并按需上传到 TestFlight。发布前需要在仓库或 `ios-production`
+环境中配置：
+
+- `IOS_CERTIFICATE_P12_BASE64`：Apple Distribution 证书 p12 的 base64 内容
+- `IOS_CERTIFICATE_PASSWORD`：p12 密码
+- `IOS_PROVISIONING_PROFILE_BASE64`：App Store provisioning profile 的 base64 内容
+- `IOS_DEVELOPMENT_TEAM`：Apple Developer Team ID
+- `APP_STORE_CONNECT_API_KEY_ID`：App Store Connect API Key ID
+- `APP_STORE_CONNECT_ISSUER_ID`：App Store Connect Issuer ID
+- `APP_STORE_CONNECT_API_KEY_BASE64`：App Store Connect `.p8` 私钥的 base64 内容
+
+可选变量：
+
+- `IOS_APP_BUNDLE_ID`：覆盖默认 Bundle ID，默认 `cn.gdeiassistant.GdeiAssistant-iOS`
+
+工作流输入包括 `version`、`build_number` 和是否上传到 TestFlight。工作流会先运行
+Swift 样式检查，再执行 Release archive/export；即使跳过 TestFlight 上传，也会保留
+导出的 IPA artifact 便于排查签名问题。
+
+### 4. 运行方式
 
 - `mock` 模式：适合本地联调 UI 和主链路验证
 - `remote` 模式：适合接入真实后端接口