diff --git a/src/composables/useLocale.js b/src/composables/useLocale.js
new file mode 100644
index 0000000..8f0beb0
--- /dev/null
+++ b/src/composables/useLocale.js
@@ -0,0 +1,15 @@
+import { computed } from 'vue'
+import { useI18n } from 'vue-i18n'
+
+// 共享的语言辅助 composable，消除各组件重复定义 L()
+// 用法：
+//   const { t, locale, isZh, pick } = useLocale()
+//   t('some.key')        // 走 i18n（推荐，文案在 locale 文件）
+//   isZh.value           // 判断当前是否中文
+//   pick({ zh, en })     // 从 {zh,en} 对象取当前语言值（用于数据文件）
+export function useLocale() {
+  const { t, locale } = useI18n({ useScope: 'global' })
+  const isZh = computed(() => locale.value === 'zh-CN')
+  const pick = (obj) => (isZh.value ? obj.zh : obj.en)
+  return { t, locale, isZh, pick }
+}
diff --git a/src/i18n/locales/en.js b/src/i18n/locales/en.js
index 0a08e8a..17e795b 100644
--- a/src/i18n/locales/en.js
+++ b/src/i18n/locales/en.js
@@ -2,19 +2,96 @@
 // 只看中文的访客不会下载此文件。
 export default {
   app: {
-    title: 'Zikai',
-    nav: {
-      projects: 'Projects',
-      language: 'Language'
-    }
+    title: 'Zikai'
   },
   common: {
     loading: 'Loading…',
-    comingSoon: 'Coming soon',
-    notAvailable: 'Not available',
-    backToTop: 'Back to top'
+    notAvailable: 'Not available'
   },
   tabs: {
     mobileGame: 'Mobile Game Project'
+  },
+  mobileGame: {
+    hero: {
+      title: 'Mobile Game Project',
+      desc: 'A cross-semester Unity mobile-game capstone: 448 built the game (WebGL + Android APK), 449 built the showcase site and player leaderboard. Iterated across versions, from a character controller to a gyroscope-controlled 3D rolling-ball game, with ML-Agents reinforcement-learning experiments.'
+    },
+    meta: {
+      course: 'Miami University · Capstone 448 / 449',
+      stack: 'Stack',
+      stackValue: 'Unity · C# · WebGL · Android · PHP',
+      period: 'Period',
+      periodValue: '2022'
+    },
+    overview: {
+      label: 'Overview',
+      title: 'From character controller to gyro ball',
+      p1: 'The project spans courses 448 and 449. 448 built the game with Unity, producing browser-playable WebGL builds and installable Android APKs; 449 built the showcase site and a PHP+MySQL player leaderboard. The game evolved along several parallel lines, from 2D character controllers and platformers, ultimately shifting to a gyroscope-controlled 3D rolling ball, with ML-Agents reinforcement-learning experiments.',
+      p2: 'Gameplay iterated across versions: early builds were keyboard-controlled 2D character controllers with health/power stats; the final version became a gyroscope-tilt 3D rolling-ball game with falling snowflake bricks and bouncing yellow bricks.'
+    },
+    subtabs: {
+      team: 'Team · Leaderboard',
+      iterations: 'Iterations',
+      experiment: 'Experiment'
+    },
+    team: {
+      label: 'Team',
+      title: 'Members'
+    },
+    leaderboard: {
+      label: 'Leaderboard',
+      title: 'Top 30 Scores',
+      colRank: '#',
+      colName: 'Name',
+      colScore: 'Score',
+      noScores: 'No scores yet',
+      error: 'Leaderboard service unavailable'
+    },
+    iterations: {
+      label: 'Version History',
+      title: 'Iteration Record',
+      colControls: 'Controls',
+      colNote: 'Note',
+      colUnity: 'Unity',
+      playWebgl: 'Play WebGL',
+      downloadApk: 'Download APK',
+      pivotText: 'Earlier parallel lines: 2D'
+    },
+    experiment: {
+      label: 'Experiment',
+      title: 'ML-Agents Reinforcement Learning Demo',
+      caption: 'Capsules trained via ML-Agents to keep the ball from falling and to navigate obstacles.'
+    },
+    tracks: {
+      'roll-a-ball': {
+        name: '3D Rolling Ball (Final Form)',
+        desc: 'The final form as the project shifted from 2D to 3D. Tilt the phone to roll the ball; snowflake bricks fall, yellow bricks bounce.'
+      },
+      'zikai-ui': {
+        name: 'zikai-ui Character Controller',
+        desc: 'The most iterated line. A 2D character with health/power stats; controls evolved from mouse, QWER/ASDF keys, finally to WASD.'
+      },
+      'main': {
+        name: 'main Character Controller',
+        desc: '2D character controller; upgraded Unity 2020 -> 2021, added on-screen buttons and jump.'
+      },
+      'doby': {
+        name: 'DobyAdventure',
+        desc: '2D side-scrolling platformer: collect coins, score, health, touch joystick.'
+      }
+    },
+    versions: {
+      'zikai-0.0.0': { control: 'Left mouse: operate, Right mouse: track', note: 'Early mouse-controlled prototype' },
+      'zikai-0.0.1': { control: 'Health Q/W/E/R, Power A/S/D/F', note: 'Introduced health/power stat system' },
+      'zikai-0.0.2': { control: 'Same as 0.0.1', note: 'Build artifact renaming' },
+      'zikai-0.0.3': { control: 'WASD move, J jump, K fly (testing)', note: 'Switched to WASD, latest of this line' },
+      'main-0.0.0': { control: 'Character controller', note: 'Baseline' },
+      'main-0.0.1': { control: 'WASD move, K jump', note: 'Upgraded Unity, added on-screen buttons' },
+      'hongXiang-0.0.0': { control: 'A/D move, jump, collect coins', note: '2D platformer' },
+      'ball': { control: 'Tilt phone to move, tilt up/tap to jump', note: 'Final version, project shifted to 3D rolling ball' }
+    },
+    screenshots: {
+      caption: 'Screenshot {n}'
+    }
   }
 }
diff --git a/src/i18n/locales/zh-CN.js b/src/i18n/locales/zh-CN.js
index 1ddbcd3..0e613fc 100644
--- a/src/i18n/locales/zh-CN.js
+++ b/src/i18n/locales/zh-CN.js
@@ -1,19 +1,98 @@
 // 中文语言包（默认语言，同步注入主 chunk，随首屏下发）
 export default {
   app: {
-    title: 'Zikai',
-    nav: {
-      projects: '项目',
-      language: '语言'
-    }
+    title: 'Zikai'
   },
   common: {
     loading: '加载中…',
-    comingSoon: '即将上线',
-    notAvailable: '暂不可用',
-    backToTop: '回到顶部'
+    notAvailable: '暂不可用'
   },
   tabs: {
     mobileGame: '移动游戏项目'
+  },
+  mobileGame: {
+    hero: {
+      title: '移动游戏项目',
+      desc: '一个跨学期的 Unity 移动游戏毕设项目：448 开发游戏本体（WebGL + Android APK），449 搭建展示网站与玩家排行榜。经历多版本迭代，从角色控制器演进到陀螺仪操控的 3D 滚球游戏，并尝试用 ML-Agents 做强化学习实验。'
+    },
+    meta: {
+      course: '迈阿密大学 · 毕设 448 / 449',
+      stack: '技术栈',
+      stackValue: 'Unity · C# · WebGL · Android · PHP',
+      period: '时间',
+      periodValue: '2022'
+    },
+    overview: {
+      label: '项目概览',
+      title: '从角色控制器到陀螺仪滚球',
+      p1: '项目跨越 448 与 449 两门课程。448 用 Unity 开发游戏本体，产出可浏览器试玩的 WebGL 构建与可安装的 Android APK；449 搭建展示网站与基于 PHP+MySQL 的玩家分数排行榜。游戏经历多条并行演进线，从 2D 角色控制器与平台跳跃，最终转向手机陀螺仪操控的 3D 滚球，并尝试用 ML-Agents 做强化学习实验。',
+      p2: '玩法经过多版本迭代：早期是键盘控制生命/能量的 2D 角色控制器，最终版改为手机陀螺仪倾斜操控的 3D 滚球，含雪花砖掉落、黄色砖弹跳等机制。'
+    },
+    subtabs: {
+      team: '团队 · 排行榜',
+      iterations: '迭代记录',
+      experiment: '实验'
+    },
+    team: {
+      label: '团队',
+      title: '成员'
+    },
+    leaderboard: {
+      label: '排行榜',
+      title: '玩家分数 Top 30',
+      colRank: '#',
+      colName: '玩家',
+      colScore: '分数',
+      noScores: '暂无分数记录',
+      error: '排行榜服务暂不可用'
+    },
+    iterations: {
+      label: '版本演进',
+      title: '迭代记录',
+      colControls: '操作',
+      colNote: '说明',
+      colUnity: 'Unity',
+      playWebgl: 'WebGL 试玩',
+      downloadApk: '下载 APK',
+      pivotText: '早期并行演进：2D 线'
+    },
+    experiment: {
+      label: '实验',
+      title: 'ML-Agents 强化学习演示',
+      caption: '胶囊体经 ML-Agents 训练，学习保球不掉与越障。'
+    },
+    // 版本演进线与版本数据中的可翻译文案
+    tracks: {
+      'roll-a-ball': {
+        name: '3D 滚球（最终形态）',
+        desc: '项目从 2D 转向 3D 的最终形态。手机陀螺仪倾斜操控滚球，含雪花砖掉落、黄色砖弹跳等机制。'
+      },
+      'zikai-ui': {
+        name: 'zikai-ui 角色控制器',
+        desc: '迭代次数最多的线。2D 角色带生命/能量属性，操作方式从鼠标、QWER/ASDF 键盘最终改为 WASD。'
+      },
+      'main': {
+        name: 'main 角色控制器',
+        desc: '2D 角色控制器，从 Unity 2020 升级到 2021，新增屏幕按键与跳跃。'
+      },
+      'doby': {
+        name: 'DobyAdventure',
+        desc: '2D 横版平台跳跃，吃金币、计分、血量、触屏摇杆。'
+      }
+    },
+    // 各版本的操作与说明文案（key = 版本 id）
+    versions: {
+      'zikai-0.0.0': { control: '鼠标左键操作、右键追踪', note: '早期鼠标控制原型' },
+      'zikai-0.0.1': { control: '生命 Q/W/E/R、能量 A/S/D/F', note: '引入生命/能量属性系统' },
+      'zikai-0.0.2': { control: '同 0.0.1', note: '构建产物重命名整理' },
+      'zikai-0.0.3': { control: 'WASD 移动、J 跳跃、K 飞行(测试)', note: '改为 WASD 操作，本线最新版' },
+      'main-0.0.0': { control: '角色控制器', note: '基线版本' },
+      'main-0.0.1': { control: 'WASD 移动、K 跳跃', note: '升级 Unity，新增屏幕按键' },
+      'hongXiang-0.0.0': { control: 'A/D 移动、跳跃、吃金币', note: '2D 平台跳跃' },
+      'ball': { control: '手机陀螺仪倾斜移动、上倾/点击跳跃', note: '最终版本，项目转向 3D 滚球' }
+    },
+    screenshots: {
+      caption: '项目截图 {n}'
+    }
   }
 }
diff --git a/src/modules/mobile-game/MobileGame.vue b/src/modules/mobile-game/MobileGame.vue
index 6b98ad6..423b2eb 100644
--- a/src/modules/mobile-game/MobileGame.vue
+++ b/src/modules/mobile-game/MobileGame.vue
@@ -1,20 +1,16 @@
 <script setup>
 import { ref, defineAsyncComponent } from 'vue'
-import { useI18n } from 'vue-i18n'
 import HeroSection from './components/HeroSection.vue'
 import ScreenshotCarousel from './components/ScreenshotCarousel.vue'
 import SubTabs from './components/SubTabs.vue'
+import { useLocale } from '../../composables/useLocale.js'
+import { subTabs, defaultSubTab } from './config.js'
 
-const { locale } = useI18n({ useScope: 'global' })
-const L = (zh, en) => (locale.value === 'zh-CN' ? zh : en)
+const { t } = useLocale()
 
-// 子标签页：默认显示团队+排行榜
-const subTabs = [
-  { id: 'team', label: { zh: '团队 · 排行榜', en: 'Team · Leaderboard' } },
-  { id: 'iterations', label: { zh: '迭代记录', en: 'Iterations' } },
-  { id: 'experiment', label: { zh: '实验', en: 'Experiment' } }
-]
-const activeTab = ref('team')
+// 子标签页配置转为 SubTabs 需要的 { id, labelKey } 形式
+const tabs = subTabs
+const activeTab = ref(defaultSubTab)
 
 // ★ 按需加载：三个子标签页用 defineAsyncComponent 动态 import，
 // 被 Vite/Rollup 拆成独立 chunk，只有切到对应标签页时才下载与渲染。
@@ -34,21 +30,11 @@ const ExperimentTab = defineAsyncComponent(() => import('./components/Experiment
         <div class="block__grid">
           <div class="block__text">
             <h2 class="section-title">
-              <small>{{ L('项目概览', 'Overview') }}</small>
-              {{ L('从角色控制器到陀螺仪滚球', 'From character controller to gyro ball') }}
+              <small>{{ t('mobileGame.overview.label') }}</small>
+              {{ t('mobileGame.overview.title') }}
             </h2>
-            <p>
-              {{ L(
-                '项目跨越 448 与 449 两门课程。448 用 Unity 开发游戏本体，产出可浏览器试玩的 WebGL 构建与可安装的 Android APK；449 搭建展示网站与基于 PHP+MySQL 的玩家分数排行榜。游戏经历多条并行演进线，从 2D 角色控制器与平台跳跃，最终转向手机陀螺仪操控的 3D 滚球，并尝试用 ML-Agents 做强化学习实验。',
-                'The project spans courses 448 and 449. 448 built the game with Unity, producing browser-playable WebGL builds and installable Android APKs; 449 built the showcase site and a PHP+MySQL player leaderboard. The game evolved along several parallel lines, from 2D character controllers and platformers, ultimately shifting to a gyroscope-controlled 3D rolling ball, with ML-Agents reinforcement-learning experiments.'
-              ) }}
-            </p>
-            <p>
-              {{ L(
-                '玩法经过多版本迭代：早期是键盘控制生命/能量的 2D 角色控制器，最终版改为手机陀螺仪倾斜操控的 3D 滚球，含雪花砖掉落、黄色砖弹跳等机制。',
-                'Gameplay iterated across versions: early builds were keyboard-controlled 2D character controllers with health/power stats; the final version became a gyroscope-tilt 3D rolling-ball game with falling snowflake bricks and bouncing yellow bricks.'
-              ) }}
-            </p>
+            <p>{{ t('mobileGame.overview.p1') }}</p>
+            <p>{{ t('mobileGame.overview.p2') }}</p>
           </div>
           <div class="block__media">
             <ScreenshotCarousel />
@@ -58,14 +44,14 @@ const ExperimentTab = defineAsyncComponent(() => import('./components/Experiment
 
       <!-- 子标签页区域：按需加载，v-if 确保未激活的不渲染 -->
       <section class="block">
-        <SubTabs v-model="activeTab" :tabs="subTabs" />
+        <SubTabs v-model="activeTab" :tabs="tabs" />
 
         <Suspense>
           <TeamLeaderboardTab v-if="activeTab === 'team'" />
           <IterationsTab v-else-if="activeTab === 'iterations'" />
           <ExperimentTab v-else-if="activeTab === 'experiment'" />
           <template #fallback>
-            <div class="tab-loading">{{ L('加载中…', 'Loading…') }}</div>
+            <div class="tab-loading">{{ t('common.loading') }}</div>
           </template>
         </Suspense>
       </section>
diff --git a/src/modules/mobile-game/components/ExperimentTab.vue b/src/modules/mobile-game/components/ExperimentTab.vue
index a6ce6d2..43958d4 100644
--- a/src/modules/mobile-game/components/ExperimentTab.vue
+++ b/src/modules/mobile-game/components/ExperimentTab.vue
@@ -1,26 +1,21 @@
 <script setup>
-import { useI18n } from 'vue-i18n'
+import { useLocale } from '../../../composables/useLocale.js'
+import { assets } from '../config.js'
 
-const { locale } = useI18n({ useScope: 'global' })
-const L = (zh, en) => (locale.value === 'zh-CN' ? zh : en)
-// 站点根绝对路径，用绑定避免被 Vite 当作构建期静态资源解析
-const videoPoster = '/448/2.jpg'
-const videoSrc = '/448/ml/449ml.mp4'
+const { t } = useLocale()
 </script>
 
 <template>
   <div class="tab-experiment">
     <h2 class="section-title">
-      <small>{{ L('实验', 'Experiment') }}</small>
-      {{ L('ML-Agents 强化学习演示', 'ML-Agents Reinforcement Learning Demo') }}
+      <small>{{ t('mobileGame.experiment.label') }}</small>
+      {{ t('mobileGame.experiment.title') }}
     </h2>
     <div class="video-wrap">
-      <video controls preload="none" :poster="videoPoster">
-        <source :src="videoSrc" type="video/mp4" />
+      <video controls preload="none" :poster="assets.video.poster">
+        <source :src="assets.video.src" type="video/mp4" />
       </video>
-      <p class="video-caption">
-        {{ L('胶囊体经 ML-Agents 训练，学习保球不掉与越障。', 'Capsules trained via ML-Agents to keep the ball from falling and to navigate obstacles.') }}
-      </p>
+      <p class="video-caption">{{ t('mobileGame.experiment.caption') }}</p>
     </div>
   </div>
 </template>
diff --git a/src/modules/mobile-game/components/HeroSection.vue b/src/modules/mobile-game/components/HeroSection.vue
index c4ea0bc..646618d 100644
--- a/src/modules/mobile-game/components/HeroSection.vue
+++ b/src/modules/mobile-game/components/HeroSection.vue
@@ -1,38 +1,23 @@
 <script setup>
 import Tag from '../../../components/ui/Tag.vue'
-import { useI18n } from 'vue-i18n'
+import { useLocale } from '../../../composables/useLocale.js'
+import { heroMeta } from '../config.js'
 
-const { locale } = useI18n({ useScope: 'global' })
-
-const meta = {
-  course: { zh: '迈阿密大学 · 毕设 448 / 449', en: 'Miami University · Capstone 448 / 449' },
-  stack: { zh: 'Unity · C# · WebGL · Android · PHP', en: 'Unity · C# · WebGL · Android · PHP' },
-  period: '2022'
-}
+const { t } = useLocale()
 </script>
 
 <template>
   <section class="hero">
     <div class="container">
       <div class="hero__eyebrow">
-        <Tag>{{ locale === 'zh-CN' ? meta.course.zh : meta.course.en }}</Tag>
+        <Tag>{{ t(heroMeta.courseKey) }}</Tag>
       </div>
-      <h1 class="hero__title">
-        {{ $t('tabs.mobileGame') }}
-      </h1>
-      <p class="hero__desc">
-        {{ locale === 'zh-CN'
-          ? '一个跨学期的 Unity 移动游戏毕设项目：448 开发游戏本体（WebGL + Android APK），449 搭建展示网站与玩家排行榜。经历多版本迭代，从角色控制器演进到陀螺仪操控的 3D 滚球游戏，并尝试用 ML-Agents 做强化学习实验。'
-          : 'A cross-semester Unity mobile-game capstone: 448 built the game (WebGL + Android APK), 449 built the showcase site and player leaderboard. Iterated across versions, from a character controller to a gyroscope-controlled 3D rolling-ball game, with ML-Agents reinforcement-learning experiments.' }}
-      </p>
+      <h1 class="hero__title">{{ t('mobileGame.hero.title') }}</h1>
+      <p class="hero__desc">{{ t('mobileGame.hero.desc') }}</p>
       <div class="hero__meta">
-        <div class="hero__meta-item">
-          <span class="hero__meta-label">{{ locale === 'zh-CN' ? '技术栈' : 'Stack' }}</span>
-          <span>{{ locale === 'zh-CN' ? meta.stack.zh : meta.stack.en }}</span>
-        </div>
-        <div class="hero__meta-item">
-          <span class="hero__meta-label">{{ locale === 'zh-CN' ? '时间' : 'Period' }}</span>
-          <span>{{ meta.period }}</span>
+        <div v-for="item in heroMeta.items" :key="item.labelKey" class="hero__meta-item">
+          <span class="hero__meta-label">{{ t(item.labelKey) }}</span>
+          <span>{{ t(item.valueKey) }}</span>
         </div>
       </div>
     </div>
diff --git a/src/modules/mobile-game/components/IterationsTab.vue b/src/modules/mobile-game/components/IterationsTab.vue
index c5c548c..d7f13d4 100644
--- a/src/modules/mobile-game/components/IterationsTab.vue
+++ b/src/modules/mobile-game/components/IterationsTab.vue
@@ -1,16 +1,15 @@
 <script setup>
-import { useI18n } from 'vue-i18n'
+import { useLocale } from '../../../composables/useLocale.js'
 import VersionTimeline from './VersionTimeline.vue'
 
-const { locale } = useI18n({ useScope: 'global' })
-const L = (zh, en) => (locale.value === 'zh-CN' ? zh : en)
+const { t } = useLocale()
 </script>
 
 <template>
   <div class="tab-iterations">
     <h2 class="section-title">
-      <small>{{ L('版本演进', 'Version History') }}</small>
-      {{ L('迭代记录', 'Iteration Record') }}
+      <small>{{ t('mobileGame.iterations.label') }}</small>
+      {{ t('mobileGame.iterations.title') }}
     </h2>
     <VersionTimeline />
   </div>
diff --git a/src/modules/mobile-game/components/Leaderboard.vue b/src/modules/mobile-game/components/Leaderboard.vue
index 188ad55..309a9e8 100644
--- a/src/modules/mobile-game/components/Leaderboard.vue
+++ b/src/modules/mobile-game/components/Leaderboard.vue
@@ -1,24 +1,24 @@
 <script setup>
 import { ref, onMounted } from 'vue'
-import { useI18n } from 'vue-i18n'
+import { useLocale } from '../../../composables/useLocale.js'
+import { leaderboard } from '../config.js'
 
-const { locale, t } = useI18n({ useScope: 'global' })
+const { t } = useLocale()
 
 const rows = ref([])
 const state = ref('loading') // loading | ok | error
 const errorMsg = ref('')
 
-// 复用 449 现有后端：POST /449/449rest.php {num} 取分页 JSON
+// 复用 449 现有后端：POST endpoint {num} 取分页 JSON
 async function load() {
   state.value = 'loading'
   try {
     const all = []
-    // 拉取 3 页（每页 10 条，共 top30）
-    for (let page = 0; page < 3; page++) {
-      const res = await fetch('/449/449rest.php', {
+    for (let page = 0; page < leaderboard.pages; page++) {
+      const res = await fetch(leaderboard.endpoint, {
         method: 'POST',
         headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
-        body: `num=${page * 10}`
+        body: `num=${page * leaderboard.perPage}`
       })
       if (!res.ok) throw new Error(`HTTP ${res.status}`)
       const data = await res.json()
@@ -30,12 +30,10 @@ async function load() {
     }
     rows.value = all
     state.value = all.length ? 'ok' : 'error'
-    if (!all.length) errorMsg.value = locale.value === 'zh-CN' ? '暂无分数记录' : 'No scores yet'
+    if (!all.length) errorMsg.value = t('mobileGame.leaderboard.noScores')
   } catch (e) {
     state.value = 'error'
-    errorMsg.value = locale.value === 'zh-CN'
-      ? '排行榜服务暂不可用'
-      : 'Leaderboard service unavailable'
+    errorMsg.value = t('mobileGame.leaderboard.error')
   }
 }
 
@@ -45,7 +43,7 @@ onMounted(load)
 <template>
   <div class="leaderboard">
     <div v-if="state === 'loading'" class="leaderboard__state">
-      {{ $t('common.loading') }}
+      {{ t('common.loading') }}
     </div>
 
     <div v-else-if="state === 'error'" class="leaderboard__state leaderboard__state--error">
@@ -55,9 +53,9 @@ onMounted(load)
     <table v-else class="leaderboard__table">
       <thead>
         <tr>
-          <th>#</th>
-          <th>{{ locale === 'zh-CN' ? '玩家' : 'Name' }}</th>
-          <th>{{ locale === 'zh-CN' ? '分数' : 'Score' }}</th>
+          <th>{{ t('mobileGame.leaderboard.colRank') }}</th>
+          <th>{{ t('mobileGame.leaderboard.colName') }}</th>
+          <th>{{ t('mobileGame.leaderboard.colScore') }}</th>
         </tr>
       </thead>
       <tbody>
diff --git a/src/modules/mobile-game/components/ScreenshotCarousel.vue b/src/modules/mobile-game/components/ScreenshotCarousel.vue
index 32df863..b23ae05 100644
--- a/src/modules/mobile-game/components/ScreenshotCarousel.vue
+++ b/src/modules/mobile-game/components/ScreenshotCarousel.vue
@@ -1,14 +1,15 @@
 <script setup>
 import { ref, onMounted, onUnmounted } from 'vue'
-import { useI18n } from 'vue-i18n'
-import { screenshots } from '../data/versions.js'
+import { useLocale } from '../../../composables/useLocale.js'
+import { assets } from '../config.js'
 
-const { locale } = useI18n({ useScope: 'global' })
+const { t } = useLocale()
+const images = assets.screenshots
 const current = ref(0)
 let timer = null
 
 function go(i) {
-  current.value = (i + screenshots.length) % screenshots.length
+  current.value = (i + images.length) % images.length
 }
 function next() {
   go(current.value + 1)
@@ -31,8 +32,8 @@ onUnmounted(pause)
   <div class="carousel" @mouseenter="pause" @mouseleave="resume">
     <div class="carousel__viewport">
       <div class="carousel__track" :style="{ transform: `translateX(-${current * 100}%)` }">
-        <figure v-for="(s, i) in screenshots" :key="i" class="carousel__slide">
-          <img :src="s.src" :alt="locale === 'zh-CN' ? s.caption.zh : s.caption.en" loading="lazy" />
+        <figure v-for="(src, i) in images" :key="i" class="carousel__slide">
+          <img :src="src" :alt="t('mobileGame.screenshots.caption', { n: i + 1 })" loading="lazy" />
         </figure>
       </div>
     </div>
@@ -42,7 +43,7 @@ onUnmounted(pause)
 
     <div class="carousel__dots">
       <button
-        v-for="(s, i) in screenshots"
+        v-for="(src, i) in images"
         :key="i"
         class="carousel__dot"
         :class="{ 'is-active': i === current }"
diff --git a/src/modules/mobile-game/components/SubTabs.vue b/src/modules/mobile-game/components/SubTabs.vue
index edd64ad..eeaee50 100644
--- a/src/modules/mobile-game/components/SubTabs.vue
+++ b/src/modules/mobile-game/components/SubTabs.vue
@@ -1,27 +1,26 @@
 <script setup>
-import { useI18n } from 'vue-i18n'
+import { useLocale } from '../../../composables/useLocale.js'
 
 const props = defineProps({
-  tabs: { type: Array, required: true }, // [{ id, label: {zh,en} }]
+  tabs: { type: Array, required: true }, // [{ id, labelKey }]
   modelValue: { type: String, required: true }
 })
 const emit = defineEmits(['update:modelValue'])
 
-const { locale } = useI18n({ useScope: 'global' })
-const L = (obj) => (locale.value === 'zh-CN' ? obj.zh : obj.en)
+const { t } = useLocale()
 </script>
 
 <template>
   <div class="subtabs">
     <button
-      v-for="t in tabs"
-      :key="t.id"
+      v-for="tab in tabs"
+      :key="tab.id"
       type="button"
       class="subtabs__btn"
-      :class="{ 'is-active': modelValue === t.id }"
-      @click="emit('update:modelValue', t.id)"
+      :class="{ 'is-active': modelValue === tab.id }"
+      @click="emit('update:modelValue', tab.id)"
     >
-      {{ L(t.label) }}
+      {{ t(tab.labelKey) }}
     </button>
   </div>
 </template>
diff --git a/src/modules/mobile-game/components/TeamLeaderboardTab.vue b/src/modules/mobile-game/components/TeamLeaderboardTab.vue
index e968e96..2f0deb6 100644
--- a/src/modules/mobile-game/components/TeamLeaderboardTab.vue
+++ b/src/modules/mobile-game/components/TeamLeaderboardTab.vue
@@ -1,25 +1,24 @@
 <script setup>
-import { useI18n } from 'vue-i18n'
+import { useLocale } from '../../../composables/useLocale.js'
 import TeamCard from './TeamCard.vue'
 import Leaderboard from './Leaderboard.vue'
 
-const { locale } = useI18n({ useScope: 'global' })
-const L = (zh, en) => (locale.value === 'zh-CN' ? zh : en)
+const { t } = useLocale()
 </script>
 
 <template>
   <div class="tab-team block--two">
     <div>
       <h2 class="section-title">
-        <small>{{ L('团队', 'Team') }}</small>
-        {{ L('成员', 'Members') }}
+        <small>{{ t('mobileGame.team.label') }}</small>
+        {{ t('mobileGame.team.title') }}
       </h2>
       <TeamCard />
     </div>
     <div>
       <h2 class="section-title">
-        <small>{{ L('排行榜', 'Leaderboard') }}</small>
-        {{ L('玩家分数 Top 30', 'Top 30 Scores') }}
+        <small>{{ t('mobileGame.leaderboard.label') }}</small>
+        {{ t('mobileGame.leaderboard.title') }}
       </h2>
       <Leaderboard />
     </div>
diff --git a/src/modules/mobile-game/components/VersionTimeline.vue b/src/modules/mobile-game/components/VersionTimeline.vue
index 88a3103..a570142 100644
--- a/src/modules/mobile-game/components/VersionTimeline.vue
+++ b/src/modules/mobile-game/components/VersionTimeline.vue
@@ -1,19 +1,18 @@
 <script setup>
 import { computed } from 'vue'
-import { useI18n } from 'vue-i18n'
+import { useLocale } from '../../../composables/useLocale.js'
 import { versions, tracks } from '../data/versions.js'
 
-const { locale } = useI18n({ useScope: 'global' })
-const L = (obj) => (locale.value === 'zh-CN' ? obj.zh : obj.en)
+const { t } = useLocale()
 
 // 按 tracks 数组顺序分组（3D 最终形态在前）；同一线内按 order 排序
 const grouped = computed(() => {
   return tracks
-    .map((t) => {
+    .map((tr) => {
       const items = versions
-        .filter((v) => v.track === t.id)
+        .filter((v) => v.track === tr.id)
         .sort((a, b) => a.order - b.order)
-      return { track: t, items }
+      return { track: tr, items }
     })
     .filter((g) => g.items.length > 0)
 })
@@ -23,6 +22,12 @@ const isFeatured = (track) => track.featured
 
 // 形态转变标记：出现在 3D 线（首位）之后、2D 线之前
 const showPivotAfter = (gi) => gi === 0 && grouped.value.length > 1 && is3D(grouped.value[0].track)
+
+// i18n 取值辅助：track/version 的文案在 locale 的 mobileGame.tracks / mobileGame.versions 下
+const trackName = (trackId) => t(`mobileGame.tracks.${trackId}.name`)
+const trackDesc = (trackId) => t(`mobileGame.tracks.${trackId}.desc`)
+const vControl = (versionId) => t(`mobileGame.versions.${versionId}.control`)
+const vNote = (versionId) => t(`mobileGame.versions.${versionId}.note`)
 </script>
 
 <template>
@@ -39,10 +44,10 @@ const showPivotAfter = (gi) => gi === 0 && grouped.value.length > 1 && is3D(grou
       <!-- 线标题 -->
       <div class="timeline__track-head">
         <span class="timeline__form" :class="{ 'is-3d': is3D(g.track) }">{{ g.track.form }}</span>
-        <span class="timeline__track-name">{{ L(g.track.name) }}</span>
+        <span class="timeline__track-name">{{ trackName(g.track.id) }}</span>
         <span v-if="isFeatured(g.track)" class="timeline__star">★</span>
       </div>
-      <p class="timeline__track-desc">{{ L(g.track.desc) }}</p>
+      <p class="timeline__track-desc">{{ trackDesc(g.track.id) }}</p>
 
       <!-- 该线下的版本 -->
       <div class="timeline__items">
@@ -61,23 +66,23 @@ const showPivotAfter = (gi) => gi === 0 && grouped.value.length > 1 && is3D(grou
               <span class="timeline__product">{{ v.product }}</span>
             </div>
             <div class="timeline__row">
-              <span class="timeline__label">{{ locale === 'zh-CN' ? '操作' : 'Controls' }}</span>
-              <span>{{ L(v.control) }}</span>
+              <span class="timeline__label">{{ t('mobileGame.iterations.colControls') }}</span>
+              <span>{{ vControl(v.id) }}</span>
             </div>
             <div class="timeline__row">
-              <span class="timeline__label">{{ locale === 'zh-CN' ? '说明' : 'Note' }}</span>
-              <span>{{ L(v.note) }}</span>
+              <span class="timeline__label">{{ t('mobileGame.iterations.colNote') }}</span>
+              <span>{{ vNote(v.id) }}</span>
             </div>
             <div class="timeline__row">
-              <span class="timeline__label">Unity</span>
+              <span class="timeline__label">{{ t('mobileGame.iterations.colUnity') }}</span>
               <span class="timeline__mono">{{ v.unity }}</span>
             </div>
             <div class="timeline__links">
               <a v-if="v.webgl" :href="v.webgl" target="_blank" rel="noopener">
-                {{ locale === 'zh-CN' ? 'WebGL 试玩' : 'Play WebGL' }} ↗
+                {{ t('mobileGame.iterations.playWebgl') }} ↗
               </a>
               <a v-if="v.apk" :href="v.apk" target="_blank" rel="noopener">
-                {{ locale === 'zh-CN' ? '下载 APK' : 'Download APK' }} ↗
+                {{ t('mobileGame.iterations.downloadApk') }} ↗
               </a>
             </div>
           </div>
@@ -87,9 +92,7 @@ const showPivotAfter = (gi) => gi === 0 && grouped.value.length > 1 && is3D(grou
       <!-- 形态转变标记：3D 线之后、2D 线之前 -->
       <div v-if="showPivotAfter(gi)" class="timeline__pivot">
         <span class="timeline__pivot-line"></span>
-        <span class="timeline__pivot-text">
-          {{ locale === 'zh-CN' ? '早期并行演进：2D 线' : 'Earlier parallel lines: 2D' }}
-        </span>
+        <span class="timeline__pivot-text">{{ t('mobileGame.iterations.pivotText') }}</span>
         <span class="timeline__pivot-line"></span>
       </div>
     </div>
diff --git a/src/modules/mobile-game/config.js b/src/modules/mobile-game/config.js
new file mode 100644
index 0000000..60f21d6
--- /dev/null
+++ b/src/modules/mobile-game/config.js
@@ -0,0 +1,46 @@
+// mobile-game 模块的静态配置（集中管理，避免散落在各组件）
+// 文案走 i18n（见 locales 的 mobileGame 命名空间），此处只放纯配置与资源路径。
+
+// 站点根绝对路径的资源引用
+export const assets = {
+  // 截图轮播图源
+  screenshots: [
+    '/448/1.jpg',
+    '/448/2.jpg',
+    '/448/3.jpg'
+  ],
+  // ML-Agents 演示视频
+  video: {
+    src: '/448/ml/449ml.mp4',
+    poster: '/448/2.jpg'
+  }
+}
+
+// 排行榜后端（复用 449 现有 PHP 接口）
+export const leaderboard = {
+  endpoint: '/449/449rest.php',
+  // 拉取页数 x 每页条数 = 总条数
+  pages: 3,
+  perPage: 10
+}
+
+// Hero 区元数据（i18n 键，文案在 locales/mobileGame.meta 下）
+export const heroMeta = {
+  // meta 项顺序：labelKey -> valueKey
+  items: [
+    { labelKey: 'mobileGame.meta.stack', valueKey: 'mobileGame.meta.stackValue' },
+    { labelKey: 'mobileGame.meta.period', valueKey: 'mobileGame.meta.periodValue' }
+  ],
+  // 顶部 eyebrow tag
+  courseKey: 'mobileGame.meta.course'
+}
+
+// 子标签页定义（id 与 i18n 键）
+export const subTabs = [
+  { id: 'team', labelKey: 'mobileGame.subtabs.team' },
+  { id: 'iterations', labelKey: 'mobileGame.subtabs.iterations' },
+  { id: 'experiment', labelKey: 'mobileGame.subtabs.experiment' }
+]
+
+// 默认激活的子标签页
+export const defaultSubTab = 'team'
diff --git a/src/modules/mobile-game/data/versions.js b/src/modules/mobile-game/data/versions.js
index 9b697c7..a9b5cc5 100644
--- a/src/modules/mobile-game/data/versions.js
+++ b/src/modules/mobile-game/data/versions.js
@@ -1,162 +1,48 @@
-// 448 各版本数据（来自对构建产物与 index.html 的分析）
+// 448 版本演进数据（纯结构化数据，文案走 i18n：mobileGame.tracks / mobileGame.versions）
 //
 // 项目是多条线并行演进的，且经历了「2D -> 3D 滚球」的形态转变：
-//   - zikai-ui 线（0.0.0 -> 0.0.3）：2D 角色控制器，键盘控制生命/能量，最终改 WASD
-//   - main 线（0.0.0 -> 0.0.1）：2D 角色控制器，升级 Unity，加屏幕按键
-//   - doby 线（0.0.0）：2D 平台跳跃（Hongxiang He）
-//   - roll-a-ball 线（0.0.2）：3D 滚球，陀螺仪操控 —— 项目从 2D 转向 3D 的最终形态
+//   - roll-a-ball（3D，featured）：项目转向 3D 的最终形态，置顶强调
+//   - zikai-ui（2D）：角色控制器，0.0.0 -> 0.0.3
+//   - main（2D）：角色控制器，0.0.0 -> 0.0.1
+//   - doby（2D）：2D 平台跳跃
 //
-// track 字段标识所属演进线；form 标识 2D/3D；order 用于时间线排序（按发布先后）。
+// track 字段标识所属演进线；form 标识 2D/3D；order 用于线内排序。
+// name/note/control 等文案通过 i18n 键 tracks[trackId] / versions[versionId] 取。
 
 export const tracks = [
   {
     id: 'roll-a-ball',
-    name: { zh: '3D 滚球（最终形态）', en: '3D Rolling Ball (Final Form)' },
     form: '3D',
-    featured: true,
-    desc: {
-      zh: '项目从 2D 转向 3D 的最终形态。手机陀螺仪倾斜操控滚球，含雪花砖掉落、黄色砖弹跳等机制。',
-      en: 'The final form as the project shifted from 2D to 3D. Tilt the phone to roll the ball; snowflake bricks fall, yellow bricks bounce.'
-    }
+    featured: true
   },
   {
     id: 'zikai-ui',
-    name: { zh: 'zikai-ui 角色控制器', en: 'zikai-ui Character Controller' },
-    form: '2D',
-    desc: {
-      zh: '迭代次数最多的线。2D 角色带生命/能量属性，操作方式从鼠标、QWER/ASDF 键盘最终改为 WASD。',
-      en: 'The most iterated line. A 2D character with health/power stats; controls evolved from mouse, QWER/ASDF keys, finally to WASD.'
-    }
+    form: '2D'
   },
   {
     id: 'main',
-    name: { zh: 'main 角色控制器', en: 'main Character Controller' },
-    form: '2D',
-    desc: {
-      zh: '2D 角色控制器，从 Unity 2020 升级到 2021，新增屏幕按键与跳跃。',
-      en: '2D character controller; upgraded Unity 2020 -> 2021, added on-screen buttons and jump.'
-    }
+    form: '2D'
   },
   {
     id: 'doby',
-    name: { zh: 'DobyAdventure', en: 'DobyAdventure' },
-    form: '2D',
-    desc: {
-      zh: '2D 横版平台跳跃，吃金币、计分、血量、触屏摇杆。',
-      en: '2D side-scrolling platformer: collect coins, score, health, touch joystick.'
-    }
+    form: '2D'
   }
 ]
 
 export const versions = [
   // zikai-ui 线
-  {
-    id: 'zikai-0.0.0',
-    track: 'zikai-ui',
-    version: '0.0.0',
-    unity: '-',
-    product: 'My project / 1.0.2',
-    webgl: '/448/zikai-0.0.0/',
-    apk: null,
-    control: { zh: '鼠标左键操作、右键追踪', en: 'Left mouse: operate, Right mouse: track' },
-    note: { zh: '早期鼠标控制原型', en: 'Early mouse-controlled prototype' },
-    order: 1
-  },
-  {
-    id: 'zikai-0.0.1',
-    track: 'zikai-ui',
-    version: '0.0.1',
-    unity: '2020.3.30f1',
-    product: 'zikai-ui / 1.0.2',
-    webgl: '/448/zikai-0.0.1/',
-    apk: '/448/zikai-0.0.1/zikai.apk',
-    control: { zh: '生命 Q/W/E/R、能量 A/S/D/F', en: 'Health Q/W/E/R, Power A/S/D/F' },
-    note: { zh: '引入生命/能量属性系统', en: 'Introduced health/power stat system' },
-    order: 2
-  },
-  {
-    id: 'zikai-0.0.2',
-    track: 'zikai-ui',
-    version: '0.0.2',
-    unity: '2020.3.30f1',
-    product: 'zikai-ui / 1.0.2',
-    webgl: '/448/zikai-0.0.2/',
-    apk: '/448/zikai-0.0.2/zikai.apk',
-    control: { zh: '同 0.0.1', en: 'Same as 0.0.1' },
-    note: { zh: '构建产物重命名整理', en: 'Build artifact renaming' },
-    order: 3
-  },
-  {
-    id: 'zikai-0.0.3',
-    track: 'zikai-ui',
-    version: '0.0.3',
-    unity: '2020.3.30f1',
-    product: 'zikai-ui / 1.0.2.5',
-    webgl: '/448/zikai-0.0.3/',
-    apk: '/448/zikai-0.0.3/zikai.apk',
-    control: { zh: 'WASD 移动、J 跳跃、K 飞行(测试)', en: 'WASD move, J jump, K fly (testing)' },
-    note: { zh: '改为 WASD 操作，本线最新版', en: 'Switched to WASD, latest of this line' },
-    order: 4
-  },
+  { id: 'zikai-0.0.0', track: 'zikai-ui', version: '0.0.0', unity: '-', product: 'My project / 1.0.2', webgl: '/448/zikai-0.0.0/', apk: null, order: 1 },
+  { id: 'zikai-0.0.1', track: 'zikai-ui', version: '0.0.1', unity: '2020.3.30f1', product: 'zikai-ui / 1.0.2', webgl: '/448/zikai-0.0.1/', apk: '/448/zikai-0.0.1/zikai.apk', order: 2 },
+  { id: 'zikai-0.0.2', track: 'zikai-ui', version: '0.0.2', unity: '2020.3.30f1', product: 'zikai-ui / 1.0.2', webgl: '/448/zikai-0.0.2/', apk: '/448/zikai-0.0.2/zikai.apk', order: 3 },
+  { id: 'zikai-0.0.3', track: 'zikai-ui', version: '0.0.3', unity: '2020.3.30f1', product: 'zikai-ui / 1.0.2.5', webgl: '/448/zikai-0.0.3/', apk: '/448/zikai-0.0.3/zikai.apk', order: 4 },
 
   // main 线
-  {
-    id: 'main-0.0.0',
-    track: 'main',
-    version: '0.0.0',
-    unity: '2020.3.30f1',
-    product: 'zikai-main / 1.0.2.6',
-    webgl: '/448/main-0.0.0/',
-    apk: '/448/main-0.0.0.apk',
-    control: { zh: '角色控制器', en: 'Character controller' },
-    note: { zh: '基线版本', en: 'Baseline' },
-    order: 2
-  },
-  {
-    id: 'main-0.0.1',
-    track: 'main',
-    version: '0.0.1',
-    unity: '2021.3.12f1',
-    product: 'beta / 1.0.2',
-    webgl: '/448/main-0.0.1/',
-    apk: '/448/main-0.0.1/zikai.apk',
-    control: { zh: 'WASD 移动、K 跳跃', en: 'WASD move, K jump' },
-    note: { zh: '升级 Unity，新增屏幕按键', en: 'Upgraded Unity, added on-screen buttons' },
-    order: 5
-  },
+  { id: 'main-0.0.0', track: 'main', version: '0.0.0', unity: '2020.3.30f1', product: 'zikai-main / 1.0.2.6', webgl: '/448/main-0.0.0/', apk: '/448/main-0.0.0.apk', order: 2 },
+  { id: 'main-0.0.1', track: 'main', version: '0.0.1', unity: '2021.3.12f1', product: 'beta / 1.0.2', webgl: '/448/main-0.0.1/', apk: '/448/main-0.0.1/zikai.apk', order: 5 },
 
   // doby 线
-  {
-    id: 'hongXiang-0.0.0',
-    track: 'doby',
-    version: '0.0.0',
-    unity: '2021.2.10f1',
-    product: 'DobyAdventure',
-    webgl: null,
-    apk: '/448/hongXiang-0.0.0/2D game.apk',
-    control: { zh: 'A/D 移动、跳跃、吃金币', en: 'A/D move, jump, collect coins' },
-    note: { zh: '2D 平台跳跃', en: '2D platformer' },
-    order: 3
-  },
+  { id: 'hongXiang-0.0.0', track: 'doby', version: '0.0.0', unity: '2021.2.10f1', product: 'DobyAdventure', webgl: null, apk: '/448/hongXiang-0.0.0/2D game.apk', order: 3 },
 
   // roll-a-ball 线（3D，项目形态转变）
-  {
-    id: 'ball',
-    track: 'roll-a-ball',
-    version: '0.0.2',
-    unity: '2021.3.12f1',
-    product: '3dRoingBallt2 / 0.0.2',
-    webgl: '/448/ball/',
-    apk: '/448/203wangz199.apk',
-    control: { zh: '手机陀螺仪倾斜移动、上倾/点击跳跃', en: 'Tilt phone to move, tilt up/tap to jump' },
-    note: { zh: '最终版本，项目转向 3D 滚球', en: 'Final version, project shifted to 3D rolling ball' },
-    order: 6
-  }
-]
-
-// 截图（复用 448 现有图片）
-export const screenshots = [
-  { src: '/448/1.jpg', caption: { zh: '项目截图 1', en: 'Screenshot 1' } },
-  { src: '/448/2.jpg', caption: { zh: '项目截图 2', en: 'Screenshot 2' } },
-  { src: '/448/3.jpg', caption: { zh: '项目截图 3', en: 'Screenshot 3' } }
+  { id: 'ball', track: 'roll-a-ball', version: '0.0.2', unity: '2021.3.12f1', product: '3dRoingBallt2 / 0.0.2', webgl: '/448/ball/', apk: '/448/203wangz199.apk', order: 6 }
 ]