diff --git a/ui/src/App.vue b/ui/src/App.vue
index 1b169d2..9784396 100644
--- a/ui/src/App.vue
+++ b/ui/src/App.vue
@@ -1,34 +1,17 @@
 <template>
   <div class="iptv-app">
-    <!-- 调试面板 -->
-    <DebugPanel v-if="showDebug" @close="showDebug = false" />
-    <button v-else class="debug-toggle" @click="showDebug = true">🐛</button>
-    
     <!-- 全屏视频播放器 -->
-    <VideoPlayer 
-      ref="playerRef"
-      :url="currentUrl"
-      :title="currentChannel?.name"
-      class="video-layer"
-      @error="handlePlayError"
-    />
-    
+    <VideoPlayer ref="playerRef" :url="currentUrl" @error="handlePlayError" />
+
     <!-- 左侧面板（四栏） -->
     <LeftPanel
-      :visible="leftPanelVisible"
-      :channels="channels"
-      :groups="groups"
       :current-channel="currentChannel"
-      :favorites="favorites"
       :validity-map="validityMap"
-      @close="hideLeftPanel"
       @play="handlePlay"
-      @lookback="handleLookback"
     />
-    
+
     <!-- 底部信息栏 -->
     <BottomPanel
-      :visible="bottomPanelVisible"
       :channel="currentChannel"
       :current-source-index="currentSourceIndex"
       :current-program="currentProgramTitle"
@@ -39,9 +22,8 @@
       @favorite="toggleFavorite(currentChannel?.id)"
       @switch-source="showSourceSelector = true"
       @settings="showSettings = true"
-      @interaction="onBottomInteraction"
     />
-    
+
     <!-- 线路选择弹窗 -->
     <SourceModal
       v-if="showSourceSelector"
@@ -51,139 +33,83 @@
       @switch="switchSource"
       @close="showSourceSelector = false"
     />
-    
+
     <!-- 设置弹窗 -->
     <SettingsModal
       v-if="showSettings"
       @close="showSettings = false"
-      @reload="loadChannels"
+      @reload="reloadChannels"
     />
+
+    <!-- 遥控数字输入显示 -->
+    <InputPanel @complete="handleRemoteInputComplete" />
+
+    <!-- 调试面板 -->
+    <DebugPanel />
   </div>
 </template>
 
 <script setup>
-import { ref, computed, onMounted, watch } from 'vue';
-import { useStorage } from './composables/useStorage.js';
-import { useUI } from './composables/useUI.js';
-import DebugPanel from './components/DebugPanel.vue';
-import VideoPlayer from './components/VideoPlayer.vue';
-import LeftPanel from './components/Layout/LeftPanel.vue';
-import BottomPanel from './components/Layout/BottomPanel.vue';
-import SourceModal from './components/Modals/SourceModal.vue';
-import SettingsModal from './components/Modals/SettingsModal.vue';
+import { ref, onMounted, watch } from "vue";
+import { useStorage } from "./composables/useStorage.js";
+import { useUI } from "./composables/useUI.js";
+import { useFavorites } from "./composables/useFavorites.js";
+import { useHistory } from "./composables/useHistory.js";
+import { useChannels } from "./composables/useChannels.js";
+import DebugPanel from "./components/Layout/DebugPanel.vue";
+import VideoPlayer from "./components/VideoPlayer.vue";
+import LeftPanel from "./components/Layout/LeftPanel.vue";
+import InputPanel from "./components/Layout/InputPanel.vue";
+import BottomPanel from "./components/Layout/BottomPanel.vue";
+import SourceModal from "./components/Modals/SourceModal.vue";
+import SettingsModal from "./components/Modals/SettingsModal.vue";
+import { useKeyEvent } from "./composables/useEvent.js";
 
-// Storage
+// Storage（底层存储接口，只负责数据存取）
 const storage = useStorage();
 
 // UI 状态
-const { 
-  leftPanelVisible, 
-  bottomPanelVisible, 
-  showBottomPanel, 
-  hideBottomPanel,
-  onBottomInteraction 
-} = useUI();
+const { showLeftPanel, showBottomPanel, hideLeftPanel } = useUI();
+
+// 业务逻辑 hooks（内部使用 useStorage 持久化）
+const { toggleFavorite, isFavorite } = useFavorites();
+const { addToHistory } = useHistory();
+const { channels, loadChannels } = useChannels();
 
-const showDebug = ref(false);
 const showSourceSelector = ref(false);
 const showSettings = ref(false);
 
 // 播放器
 const playerRef = ref(null);
-const currentUrl = ref('');
+const currentUrl = ref("");
 const currentSourceIndex = ref(0);
 
-// 频道数据
-const channels = ref([]);
-const groups = computed(() => [...new Set(channels.value.map(c => c.group))]);
+// 播放状态
 const currentChannel = ref(null);
-const loadingChannels = ref(false);
-
-// 收藏（从 storage 加载）
-const favorites = ref(new Set());
-async function loadFavorites() {
-  const subs = await storage.getSubscriptions();
-  // 从订阅源配置中读取收藏列表
-  const favSub = subs.find(s => s.id === '__favorites__');
-  if (favSub && favSub.data) {
-    favorites.value = new Set(favSub.data);
-  }
-}
-
-async function saveFavorites() {
-  const subs = await storage.getSubscriptions();
-  const favIndex = subs.findIndex(s => s.id === '__favorites__');
-  const favSub = {
-    id: '__favorites__',
-    name: '收藏',
-    type: 'internal',
-    data: Array.from(favorites.value)
-  };
-  if (favIndex >= 0) {
-    subs[favIndex] = favSub;
-  } else {
-    subs.push(favSub);
-  }
-  await storage.setSubscriptions(subs);
-}
-
-function isFavorite(channelId) {
-  return favorites.value.has(channelId);
-}
-
-async function toggleFavorite(channelId) {
-  if (!channelId) return;
-  if (favorites.value.has(channelId)) {
-    favorites.value.delete(channelId);
-  } else {
-    favorites.value.add(channelId);
-  }
-  await saveFavorites();
-}
-
-// 最近播放
-const recentChannels = ref([]);
-async function addToRecent(channel) {
-  if (!channel) return;
-  // 去重并置顶
-  recentChannels.value = [
-    channel,
-    ...recentChannels.value.filter(c => c.id !== channel.id)
-  ].slice(0, 20); // 保留最近20个
-  
-  // 持久化
-  await storage.set('recentChannels', recentChannels.value);
-}
-
-async function loadRecent() {
-  const recent = await storage.get('recentChannels');
-  if (recent) {
-    recentChannels.value = recent;
-  }
-}
 
 // 播放频道
 async function handlePlay(channel) {
   if (!channel || !channel.urls || channel.urls.length === 0) return;
-  
+
   currentChannel.value = channel;
-  
+
   // 测速排序后选择最佳线路
-  const sortedUrls = await sortUrlsBySpeed(channel.urls);
-  currentUrl.value = sortedUrls[0] || channel.urls[0];
+  // const sortedUrls = await sortUrlsBySpeed(channel.urls);
+  // currentUrl.value = sortedUrls[0] || channel.urls[0];
+  currentUrl.value = channel.urls[0];
   currentSourceIndex.value = 0;
-  
+
   showBottomPanel();
   hideLeftPanel();
-  
-  // 添加到最近播放
-  await addToRecent(channel);
+
+  // 添加到播放历史
+  await addToHistory(channel);
 }
 
 // 测速排序
 async function sortUrlsBySpeed(urls) {
   if (!urls || urls.length === 0) return [];
-  
+
   const results = await Promise.all(
     urls.map(async (url) => {
       // 检查缓存
@@ -192,61 +118,61 @@ async function sortUrlsBySpeed(urls) {
         // 1小时内缓存有效
         return { url, ...cached };
       }
-      
+
       // HTTP HEAD 测速
       const startTime = Date.now();
       try {
         const controller = new AbortController();
         const timeout = setTimeout(() => controller.abort(), 5000);
-        
+
         const response = await fetch(url, {
-          method: 'HEAD',
+          method: "HEAD",
           signal: controller.signal,
-          mode: 'no-cors' // 允许跨域
+          mode: "no-cors", // 允许跨域
         });
-        
+
         clearTimeout(timeout);
         const latency = Date.now() - startTime;
-        
+
         const validity = {
-          status: 'online',
+          status: "online",
           checkedAt: Date.now(),
           latency,
-          failCount: 0
+          failCount: 0,
         };
-        
+
         validityMap.value.set(url, validity);
         await storage.setValidity(url, validity);
-        
+
         return { url, ...validity };
       } catch (error) {
         // 测速失败
         const cached = validityMap.value.get(url);
         const failCount = (cached?.failCount || 0) + 1;
-        
+
         const validity = {
-          status: failCount >= 3 ? 'offline' : 'unknown',
+          status: failCount >= 3 ? "offline" : "unknown",
           checkedAt: Date.now(),
           latency: Infinity,
-          failCount
+          failCount,
         };
-        
+
         validityMap.value.set(url, validity);
         await storage.setValidity(url, validity);
-        
+
         return { url, ...validity };
       }
-    })
+    }),
   );
-  
+
   // 排序：在线的按延迟排序，离线的放最后
   results.sort((a, b) => {
-    if (a.status === 'offline' && b.status !== 'offline') return 1;
-    if (a.status !== 'offline' && b.status === 'offline') return -1;
+    if (a.status === "offline" && b.status !== "offline") return 1;
+    if (a.status !== "offline" && b.status === "offline") return -1;
     return a.latency - b.latency;
   });
-  
-  return results.map(r => r.url);
+
+  return results.map((r) => r.url);
 }
 
 // 切换线路
@@ -260,162 +186,49 @@ function switchSource(source, index) {
 // 播放失败处理
 async function handlePlayError() {
   if (!currentChannel.value) return;
-  
+
   const urls = currentChannel.value.urls;
   if (urls.length <= 1) return; // 只有一个线路，无法切换
-  
+
   // 尝试下一个线路
   const nextIndex = (currentSourceIndex.value + 1) % urls.length;
   if (nextIndex === 0) {
     // 所有线路都试过了
-    console.error('所有线路都失败');
+    console.error("所有线路都失败");
     return;
   }
-  
+
   currentSourceIndex.value = nextIndex;
   currentUrl.value = urls[nextIndex];
-  
+
   // 标记当前线路失败
   const url = urls[currentSourceIndex.value];
   const cached = validityMap.value.get(url) || {};
   validityMap.value.set(url, {
     ...cached,
-    status: 'offline',
-    failCount: (cached.failCount || 0) + 1
+    status: "offline",
+    failCount: (cached.failCount || 0) + 1,
   });
 }
 
-// 回看（TODO）
-function handleLookback(program) {
-  console.log('回看:', program);
-  // TODO: 实现回看逻辑
-}
-
-// 隐藏左侧面板
-function hideLeftPanel() {
-  leftPanelVisible.value = false;
-}
-
-// 加载频道
-async function loadChannels(force = false) {
-  if (loadingChannels.value) return;
-  loadingChannels.value = true;
-  
-  try {
-    // 检查缓存
-    if (!force) {
-      const isValid = await storage.isListCacheValid();
-      if (isValid) {
-        const cached = await storage.getChannels();
-        if (cached && cached.length > 0) {
-          channels.value = cached;
-          loadingChannels.value = false;
-          // 后台刷新
-          refreshChannelsInBackground();
-          return;
-        }
-      }
-    }
-    
-    // 从订阅源加载
-    const text = await fetchChannelData();
-    if (text && !text.startsWith('ERROR')) {
-      const parsed = parseChannelData(text);
-      channels.value = parsed;
-      await storage.setChannels(parsed);
-    }
-  } finally {
-    loadingChannels.value = false;
-  }
-}
-
-// 获取频道数据
-async function fetchChannelData() {
-  const platform = import.meta.env.VITE_PLATFORM || 'web';
-  
-  // Android/TV 使用原生接口
-  if ((platform === 'android' || platform === 'tv') && window.AndroidAsset) {
-    try {
-      return window.AndroidAsset.readChannelData();
-    } catch (e) {
-      console.error('读取本地数据失败:', e);
-    }
-  }
-  
-  // Web/Desktop 从网络加载
-  try {
-    const response = await fetch('https://iptv.proxy.liyanyan.work/result.txt');
-    if (response.ok) {
-      return await response.text();
-    }
-  } catch (e) {
-    console.error('网络加载失败:', e);
-  }
-  
-  return null;
-}
-
-// 解析频道数据
-function parseChannelData(text) {
-  const channels = [];
-  const lines = text.split('\n');
-  let currentGroup = '';
-  
-  for (const line of lines) {
-    const trimmed = line.trim();
-    if (!trimmed) continue;
-    
-    if (trimmed.includes('#genre#')) {
-      currentGroup = trimmed.split(',')[0];
-    } else if (trimmed.includes(',')) {
-      const [name, url] = trimmed.split(',').map(s => s.trim());
-      if (name && url) {
-        const existing = channels.find(c => c.name === name && c.group === currentGroup);
-        if (existing) {
-          existing.urls.push(url);
-        } else {
-          channels.push({
-            id: `${currentGroup}_${name}`,
-            name,
-            group: currentGroup,
-            urls: [url],
-            logo: '',
-            epgId: ''
-          });
-        }
-      }
-    }
-  }
-  
-  return channels;
-}
-
-// 后台刷新频道
-async function refreshChannelsInBackground() {
-  try {
-    const text = await fetchChannelData();
-    if (text && !text.startsWith('ERROR')) {
-      const parsed = parseChannelData(text);
-      if (parsed.length > 0) {
-        channels.value = parsed;
-        await storage.setChannels(parsed);
-      }
-    }
-  } catch (e) {
-    console.error('后台刷新失败:', e);
-  }
+// 重新加载频道（供设置面板调用）
+async function reloadChannels() {
+  await loadChannels(true);
 }
 
 // 节目信息（TODO: 实际从 EPG 获取）
-const currentProgramTitle = ref('精彩节目');
+const currentProgramTitle = ref("精彩节目");
 const programProgress = ref(0);
-const currentTime = ref('--:--');
-const totalTime = ref('--:--');
+const currentTime = ref("--:--");
+const totalTime = ref("--:--");
 
 // 更新节目信息
 function updateProgramInfo() {
   const now = new Date();
-  currentTime.value = now.toLocaleTimeString('zh-CN', { hour: '2-digit', minute: '2-digit' });
+  currentTime.value = now.toLocaleTimeString("zh-CN", {
+    hour: "2-digit",
+    minute: "2-digit",
+  });
   // TODO: 从 EPG 获取当前节目
 }
 
@@ -430,11 +243,9 @@ async function loadValidityCache() {
 
 // 初始化
 onMounted(async () => {
-  await loadFavorites();
-  await loadRecent();
   await loadValidityCache();
-  await loadChannels();
-  
+  // 频道数据由 useChannels 自动加载
+
   // 定时更新节目信息
   setInterval(updateProgramInfo, 60000);
   updateProgramInfo();
@@ -443,18 +254,31 @@ onMounted(async () => {
 // 监听当前频道变化，更新线路有效性
 watch(currentChannel, async (channel) => {
   if (!channel || !channel.urls) return;
-  
+
   // 检查是否需要测速
-  const needCheck = channel.urls.some(url => {
+  const needCheck = channel.urls.some((url) => {
     const cached = validityMap.value.get(url);
     return !cached || Date.now() - cached.checkedAt > 60 * 60 * 1000;
   });
-  
+
   if (needCheck) {
     // 后台测速
     sortUrlsBySpeed(channel.urls);
   }
 });
+
+// 遥控输入完成处理
+function handleRemoteInputComplete(value) {
+  console.log("遥控输入完成:", value);
+  // 根据输入值跳转到对应频道
+  const channelIndex = parseInt(value, 10) - 1;
+  if (channelIndex >= 0 && channelIndex < channels.value.length) {
+    handlePlay(channels.value[channelIndex]);
+  }
+}
+
+useKeyEvent("Enter", showLeftPanel);
+useKeyEvent("Escape", showBottomPanel);
 </script>
 
 <style scoped>
@@ -467,29 +291,4 @@ watch(currentChannel, async (channel) => {
   background: #000;
   overflow: hidden;
 }
-
-.video-layer {
-  position: absolute;
-  inset: 0;
-  z-index: 1;
-}
-
-.debug-toggle {
-  position: fixed;
-  bottom: 20px;
-  right: 20px;
-  width: 44px;
-  height: 44px;
-  border-radius: 50%;
-  background: rgba(255, 255, 255, 0.1);
-  border: none;
-  font-size: 20px;
-  cursor: pointer;
-  z-index: 200;
-  opacity: 0.7;
-}
-
-.debug-toggle:hover {
-  opacity: 1;
-}
 </style>
diff --git a/ui/src/components/DebugPanel.vue b/ui/src/components/DebugPanel.vue
deleted file mode 100644
index 7d68926..0000000
--- a/ui/src/components/DebugPanel.vue
+++ /dev/null
@@ -1,43 +0,0 @@
-<template>
-  <div class="debug-panel">
-    <div class="debug-header">
-      <span>调试信息</span>
-      <button @click="$emit('close')">×</button>
-    </div>
-    <div class="debug-content">
-      <p>调试功能开发中...</p>
-    </div>
-  </div>
-</template>
-
-<style scoped>
-.debug-panel {
-  position: fixed;
-  top: 50%;
-  left: 50%;
-  transform: translate(-50%, -50%);
-  background: #1a1a1a;
-  border: 2px solid #ff6b6b;
-  border-radius: 12px;
-  padding: 16px;
-  z-index: 9999;
-  min-width: 300px;
-}
-
-.debug-header {
-  display: flex;
-  justify-content: space-between;
-  align-items: center;
-  margin-bottom: 12px;
-}
-
-.debug-header button {
-  background: #333;
-  border: none;
-  color: #fff;
-  width: 28px;
-  height: 28px;
-  border-radius: 50%;
-  cursor: pointer;
-}
-</style>