diff --git a/apps/web/.eslintrc.js b/apps/web/.eslintrc.js
index 8b014c8dc..9b9214710 100644
--- a/apps/web/.eslintrc.js
+++ b/apps/web/.eslintrc.js
@@ -2,10 +2,12 @@
  * AWOOOI Web ESLint Configuration
  * ================================
  * Extends @awoooi/eslint-config/react
+ * Wave 3: i18n enforcement via eslint-plugin-i18next
  */
 
 module.exports = {
   extends: ['@awoooi/eslint-config/react', 'next/core-web-vitals'],
+  plugins: ['i18next'],
   parserOptions: {
     project: './tsconfig.json',
     tsconfigRootDir: __dirname,
@@ -17,8 +19,26 @@ module.exports = {
     // Allow console for debugging (TODO: integrate unified logger)
     'no-console': 'off',
 
-    // i18n enforcement - no hardcoded strings in JSX
-    // (Custom rule would require eslint-plugin-i18n-json setup)
+    // Wave 3: i18n enforcement - 禁止 JSX 中的硬編碼字串
+    // 階段一: warn 模式 (2026-03-31)
+    // 階段二: error 模式 (待統帥批准)
+    'i18next/no-literal-string': ['warn', {
+      // 允許技術識別符 (服務名/API 路徑)
+      markupOnly: true,
+      // 忽略特定屬性
+      ignoreAttribute: [
+        'data-testid',
+        'className',
+        'href',
+        'src',
+        'alt',
+        'name',
+        'type',
+        'placeholder', // 部分 placeholder 可能需要 i18n，視情況調整
+      ],
+      // 忽略特定函數調用
+      ignoreCallee: ['console.log', 'console.error', 'console.warn', 't', 'tRisk', 'tBlast'],
+    }],
 
     // TypeScript strict rules
     '@typescript-eslint/no-explicit-any': 'warn',
diff --git a/apps/web/package.json b/apps/web/package.json
index 827bdd9e7..12aae9d09 100644
--- a/apps/web/package.json
+++ b/apps/web/package.json
@@ -34,6 +34,7 @@
     "autoprefixer": "^10.4.0",
     "eslint": "^8.57.0",
     "eslint-config-next": "^14.1.0",
+    "eslint-plugin-i18next": "^6.1.3",
     "playwright": "^1.58.2",
     "postcss": "^8.4.0",
     "tailwindcss": "^3.4.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 6f63dbd24..641ca4165 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -93,6 +93,9 @@ importers:
       eslint-config-next:
         specifier: ^14.1.0
         version: 14.2.35(eslint@8.57.1)(typescript@5.9.3)
+      eslint-plugin-i18next:
+        specifier: ^6.1.3
+        version: 6.1.3
       playwright:
         specifier: ^1.58.2
         version: 1.58.2
@@ -2293,6 +2296,10 @@ packages:
       eslint-import-resolver-webpack:
         optional: true
 
+  eslint-plugin-i18next@6.1.3:
+    resolution: {integrity: sha512-z/h4oBRd9wI1ET60HqcLSU6XPeAh/EPOrBBTyCdkWeMoYrWAaUVA+DOQkWTiNIyCltG4NTmy62SQisVXxoXurw==}
+    engines: {node: '>=18.10.0'}
+
   eslint-plugin-import@2.32.0:
     resolution: {integrity: sha512-whOE1HFo/qJDyX4SnXzP4N6zOWn79WhnCUY/iDR0mPfQZO8wcYE4JClzI2oZrhBnnMUCBCHZhO6VQyoBU95mZA==}
     engines: {node: '>=4'}
@@ -2884,6 +2891,9 @@ packages:
   lodash.merge@4.6.2:
     resolution: {integrity: sha512-0KpjqXRVvrYyCsX1swR/XTK0va6VQkQM6MNo7PqW77ByjAhoARA8EfrP1N4+KlKj8YS0ZUCtRT/YUuhyYDujIQ==}
 
+  lodash@4.17.23:
+    resolution: {integrity: sha512-LgVTMpQtIopCi79SJeDiP0TfWi5CNEc/L/aRdTh3yIvmZXTnheWpKjSZhnvMl8iXbC1tFg9gdHHDMLoV7CnG+w==}
+
   loose-envify@1.4.0:
     resolution: {integrity: sha512-lyuxPGr/Wfhrlem2CL/UcnUc1zcqKAImBDzukY7Y5F/yQiNdko6+fRLevlw1HgMySw7f611UIY408EtxRSoK3Q==}
     hasBin: true
@@ -3378,6 +3388,10 @@ packages:
     resolution: {integrity: sha512-QT7FVMXfWOYFbeRBF6nu+I6tr2Tf3u0q8RIEjNob/heKY/nh7drD/k7eeMFmSQgnTtCzLDcCu/XEnpW2wk4xCQ==}
     engines: {node: '>=9.3.0 || >=8.10.0 <9.0.0'}
 
+  requireindex@1.1.0:
+    resolution: {integrity: sha512-LBnkqsDE7BZKvqylbmn7lTIVdpx4K/QCduRATpO5R+wtPmky/a8pN1bO2D6wXppn1497AJF9mNjqAXr6bdl9jg==}
+    engines: {node: '>=0.10.5'}
+
   reselect@5.1.1:
     resolution: {integrity: sha512-K/BG6eIky/SBpzfHZv/dd+9JBFiS4SWV7FIujVyJRux6e45+73RaUHXLmIR1f7WOMaQ0U1km6qwklRQxpJJY0w==}
 
@@ -6173,6 +6187,11 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
+  eslint-plugin-i18next@6.1.3:
+    dependencies:
+      lodash: 4.17.23
+      requireindex: 1.1.0
+
   eslint-plugin-import@2.32.0(@typescript-eslint/parser@7.18.0(eslint@8.57.1)(typescript@5.9.3))(eslint-import-resolver-typescript@3.10.1)(eslint@8.57.1):
     dependencies:
       '@rtsao/scc': 1.1.0
@@ -6846,6 +6865,8 @@ snapshots:
 
   lodash.merge@4.6.2: {}
 
+  lodash@4.17.23: {}
+
   loose-envify@1.4.0:
     dependencies:
       js-tokens: 4.0.0
@@ -7325,6 +7346,8 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
+  requireindex@1.1.0: {}
+
   reselect@5.1.1: {}
 
   resolve-from@4.0.0: {}