diff --git a/src/main/pluginSystem.ts b/src/main/pluginSystem.ts
index 3c1e314..709bf20 100644
--- a/src/main/pluginSystem.ts
+++ b/src/main/pluginSystem.ts
@@ -91,16 +91,7 @@ export class PluginSystem {
                 error: 'Search not implemented'
             }
         }
-        try {
-            return await this.plugin.musicSearch.search(query, page, limit)
-        } catch (e: any) {
-            return {
-                list: [],
-                total: 0,
-                allPage: 0,
-                error: e.message || 'Plugin search error'
-            }
-        }
+        return await this.plugin.musicSearch.search(query, page, limit)
     }
 
     async getLyric(id: string): Promise<any> {
diff --git a/src/main/proxyServer.ts b/src/main/proxyServer.ts
index c92c183..30af482 100644
--- a/src/main/proxyServer.ts
+++ b/src/main/proxyServer.ts
@@ -472,6 +472,26 @@ function notifyWaiters(task: DownloadTask) {
     }
 }
 
+/**
+ * Cancel all background downloads EXCEPT the one matching the given path
+ */
+function cancelAllDownloadsExcept(exceptPath: string) {
+    for (const [path, task] of downloadTasks) {
+        if (path !== exceptPath) {
+            console.log(`[Proxy] Cancelling competing download: ${path}`);
+            if (task.abortController) {
+                task.abortController.abort();
+            }
+            downloadTasks.delete(path);
+            // Cleanup temp file? Handled by error handler typically, but force check
+            try {
+                const tempPath = getTempPath(path);
+                if (fs.existsSync(tempPath)) fs.unlinkSync(tempPath);
+            } catch { }
+        }
+    }
+}
+
 /**
  * 主代理函数 - 智能处理缓存和 Range 请求
  * 修复版本：正确处理流的复制，确保下载和响应同时进行
@@ -486,6 +506,9 @@ async function proxyAndCache(
     const requestedRange = req.headers.range;
     const isSeekRequest = requestedRange && !requestedRange.startsWith('bytes=0-');
 
+    // NEW: Cancel other downloads to enforce "Current Song Priority"
+    cancelAllDownloadsExcept(cacheFilePath);
+
     // 检查是否有正在进行的后台下载
     let task = downloadTasks.get(cacheFilePath);
 
@@ -565,14 +588,25 @@ async function streamAndCache(
     cacheFilePath: string,
     cacheKey: string
 ): Promise<void> {
+    const controller = new AbortController();
     const headers: Record<string, string> = {
         'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'
     };
 
-    const response = await fetch(targetUrl, {
-        method: 'GET',
-        headers: headers,
-    });
+    let response;
+    try {
+        response = await fetch(targetUrl, {
+            method: 'GET',
+            headers: headers,
+            signal: controller.signal
+        });
+    } catch (e: any) {
+        if (e.name === 'AbortError') {
+            console.log(`[Proxy] Request aborted for ${targetUrl}`);
+            return;
+        }
+        throw e;
+    }
 
     if (!response.ok) {
         throw { statusCode: response.status, statusText: response.statusText };
@@ -592,6 +626,13 @@ async function streamAndCache(
             // @ts-ignore
             const nodeStream = Readable.fromWeb(response.body);
             nodeStream.pipe(res);
+
+            // Handle cleanup if aborted during pipe (though pipe handles some)
+            res.on('close', () => {
+                if (!res.writableEnded) {
+                    nodeStream.destroy();
+                }
+            });
         } else {
             res.end();
         }
@@ -613,7 +654,7 @@ async function streamAndCache(
         currentSize: 0,
         totalSize: contentLength,
         contentType: contentType,
-        abortController: null,
+        abortController: controller,
         promise: null,
         waiters: [],
     };
@@ -645,6 +686,8 @@ async function streamAndCache(
     res.on('close', () => {
         clientConnected = false;
         console.log('[Proxy] Client disconnected');
+        // Do NOT abort download here anymore. 
+        // We let it finish UNLESS a new song starts (handled by cancelAllDownloadsExcept).
     });
 
     return new Promise<void>((resolve, reject) => {
@@ -652,7 +695,9 @@ async function streamAndCache(
             task.currentSize += chunk.length;
 
             // 写入文件（始终进行）
-            fileStream.write(chunk);
+            if (!fileStream.destroyed) {
+                fileStream.write(chunk);
+            }
 
             // 写入响应（如果客户端还连接着）
             if (clientConnected && !res.writableEnded) {
@@ -676,7 +721,11 @@ async function streamAndCache(
         });
 
         nodeStream.on('error', (err: Error) => {
-            console.error('[Proxy] Stream error:', err);
+            if (err.name === 'AbortError') {
+                console.log('[Proxy] Stream aborted');
+            } else {
+                console.error('[Proxy] Stream error:', err);
+            }
             fileStream.destroy();
 
             if (clientConnected && !res.headersSent) {
@@ -934,6 +983,11 @@ export function startProxyServer(persistCache: boolean = true) {
                     console.warn(`[Proxy] Proxy error (Attempt ${currentAttempt}/${maxAttempts}):`, e);
 
                     if (currentAttempt < maxAttempts) {
+                        if (res.headersSent) {
+                            console.warn('[Proxy] Cannot retry because headers already sent');
+                            break;
+                        }
+
                         console.log('[Proxy] Error occurred, refreshing URL from plugin...');
                         urlCache.delete(cacheKey);
 
diff --git a/src/renderer/src/components/Settings.vue b/src/renderer/src/components/Settings.vue
index ab052d6..760364b 100644
--- a/src/renderer/src/components/Settings.vue
+++ b/src/renderer/src/components/Settings.vue
@@ -133,6 +133,27 @@
             <!-- 播放设置 -->
             <div v-else-if="activeCategory === 'playback'" class="section">
               <h2 class="section-title">播放设置</h2>
+              
+              <!-- 列表添加模式 -->
+              <div class="setting-item">
+                <div class="setting-info">
+                  <div class="setting-label">列表添加模式</div>
+                  <div class="setting-desc">选择点击歌曲时的播放行为</div>
+                </div>
+                <div class="setting-control">
+                  <div class="radio-group">
+                    <label class="radio-option">
+                      <input type="radio" value="replace" v-model="playerStore.addListMode">
+                      <span class="radio-label">替换当前列表</span>
+                    </label>
+                    <label class="radio-option">
+                      <input type="radio" value="append" v-model="playerStore.addListMode">
+                      <span class="radio-label">添加到列表末尾</span>
+                    </label>
+                  </div>
+                </div>
+              </div>
+
               <div class="placeholder-content">
                 <Icon icon="lucide:headphones" class="placeholder-icon" />
                 <p>音质、淡入淡出等设置即将推出</p>
@@ -168,6 +189,9 @@
 <script setup lang="ts">
 import { ref, reactive, onBeforeMount, nextTick } from 'vue';
 import { Icon } from '@iconify/vue';
+import { usePlayerStore } from '../stores/player';
+
+const playerStore = usePlayerStore();
 
 defineEmits(['close']);
 
@@ -677,4 +701,27 @@ input:checked + .toggle-slider:before {
   color: white;
   filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.5));
 }
+
+/* Radio Group */
+.radio-group {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+
+.radio-option {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  cursor: pointer;
+  font-size: var(--font-size-sm);
+  color: var(--color-text-primary);
+}
+
+.radio-option input[type="radio"] {
+  accent-color: var(--color-accent);
+  width: 16px;
+  height: 16px;
+  cursor: pointer;
+}
 </style>
diff --git a/src/renderer/src/main.ts b/src/renderer/src/main.ts
index 6ddc8b0..932279c 100644
--- a/src/renderer/src/main.ts
+++ b/src/renderer/src/main.ts
@@ -41,39 +41,4 @@ const router = createRouter({
 const app = createApp(App)
 app.use(pinia)
 app.use(router)
-app.mount('#app')
-
-// --- TEST: Auto Play Specific Song ---
-import { usePlayerStore, PlayMode } from './stores/player'
-import type { Song } from './types/song'
-
-const playerStore = usePlayerStore()
-
-// Set Single Mode
-playerStore.playMode = PlayMode.Single;
-
-const testSong: Song = {
-  id: '2716424334',
-  name: 'T氏の話を信じるな (feat. 初音ミク & 重音テト)',
-  artist: 'ピノキオピー、初音ミク、重音テト',
-  picUrl: 'http://p2.music.126.net/DmrEz0M4GwSeISIReCNNgw==/109951171319581237.jpg?param=130y130',
-  url: '',
-  duration: '02:43',
-  source: 'wy',
-  type: 'Remote'
-};
-const testSong2: Song = {
-  id: '1979007503',
-  name: '一半一半',
-  artist: '洛天依Official',
-  picUrl: 'http://p1.music.126.net/G02hs1vJYJir359bx8wGhg==/109951167851086939.jpg?param=130y130',
-  url: '',
-  duration: '02:43',
-  source: 'wy',
-  type: 'Remote'
-}
-
-// Auto Play
-playerStore.playSong(testSong).then(() => {
-  playerStore.setPlaylist([testSong, testSong2]);
-});
\ No newline at end of file
+app.mount('#app')
\ No newline at end of file
diff --git a/src/renderer/src/stores/player.ts b/src/renderer/src/stores/player.ts
index bab1c5e..3d89ffb 100644
--- a/src/renderer/src/stores/player.ts
+++ b/src/renderer/src/stores/player.ts
@@ -46,9 +46,14 @@ export const usePlayerStore = defineStore('player', () => {
     const isPlayerFullScreen = ref(false);
 
     // Playlist State
-    const playlist = ref<Song[]>([]);
-    const currentIndex = ref(-1);
+    const savedPlaylist = localStorage.getItem('qz-player-playlist');
+    const savedIndex = localStorage.getItem('qz-player-index');
+
+    const playlist = ref<Song[]>(savedPlaylist ? JSON.parse(savedPlaylist) : []);
+    const currentIndex = ref(savedIndex ? Number(savedIndex) : -1);
     const playMode = ref<PlayMode>(PlayMode.List);
+    const savedAddMode = localStorage.getItem('qz-player-add-mode');
+    const addListMode = ref<'replace' | 'append'>((savedAddMode as 'replace' | 'append') || 'replace');
 
     // Error Handling
     const playErrorCount = ref(0);
@@ -90,6 +95,7 @@ export const usePlayerStore = defineStore('player', () => {
     // --- Actions ---
 
     const setPlaylist = async (list: any[], startIndex = 0) => {
+        // Legacy support or direct set
         playlist.value = list;
         currentIndex.value = startIndex;
         if (list.length > 0 && startIndex >= 0 && startIndex < list.length) {
@@ -97,9 +103,34 @@ export const usePlayerStore = defineStore('player', () => {
         }
     };
 
-    const playSong = async (song: Song) => {
-        if (!song) return;
+    const playFromList = async (song: Song, contextList: Song[]) => {
+        if (addListMode.value === 'replace') {
+            // Replace Mode: Replace playlist with context list and play song
+            // Find index in context list
+            const index = contextList.findIndex(s => s.id === song.id);
+            if (index !== -1) {
+                await setPlaylist(contextList, index);
+            } else {
+                // Fallback: just play song if not found in list (shouldn't happen usually)
+                await setPlaylist([song], 0);
+            }
+        } else {
+            // Append Mode: Add song to end of current playlist and play it
+            // Check if song already exists in playlist to avoid duplicates? 
+            // User request says "append", usually means just add it. 
+            // But if it's already there? Let's just add it to the end for now as requested "put clicked song to end".
 
+            // Push to playlist
+            playlist.value.push(song);
+            const newIndex = playlist.value.length - 1;
+            currentIndex.value = newIndex;
+            await playSong(song);
+        }
+    };
+
+    const playSong = async (song: Song, autoPlay = true) => {
+        if (!song) return;
+        console.log(song);
         currentSong.value = song;
         const foundIndex = playlist.value.findIndex(s => s.id === song.id);
         if (foundIndex !== -1) {
@@ -108,7 +139,7 @@ export const usePlayerStore = defineStore('player', () => {
 
         await activateDummyAudio();
         updateMediaSession(song);
-        fetchLyrics(song);
+        // fetchLyrics(song);
 
         // Get URL (Cache -> Network)
         let playUrl = song.url;
@@ -120,22 +151,32 @@ export const usePlayerStore = defineStore('player', () => {
         }
 
         if (playUrl) {
-            console.log('Playing:', song.name);
+            console.log('Playing:', song.name, 'AutoPlay:', autoPlay);
             // Reset retry flag for new playback attempt
             hasRetriedWithFreshUrl.value = false;
             try {
                 await window.electronAPI.qzplayer.load(playUrl);
-                await window.electronAPI.qzplayer.play();
-                isPlaying.value = true;
+                if (autoPlay) {
+                    await window.electronAPI.qzplayer.play();
+                    isPlaying.value = true;
+                } else {
+                    // Ensure it's paused if load auto-starts and we don't want it to
+                    // But usually we just don't call play. If loadfile auto-plays, we might need to pause.
+                    // For now, let's assume load doesn't force play or we can pause immediately.
+                    // Actually, let's force pause just in case loadfile defaults to play.
+                    await window.electronAPI.qzplayer.pause();
+                    isPlaying.value = false;
+                    syncDummyAudioState(false);
+                }
                 song.url = playUrl;
             } catch (e) {
                 // IPC call failed (rare), handle sync error
                 console.error("IPC Play request failed:", e);
-                handlePlayError().then();
+                if (autoPlay) handlePlayError().then();
             }
         } else {
             console.warn("Song has no URL");
-            handlePlayError().then();
+            if (autoPlay) handlePlayError().then();
         }
     };
 
@@ -225,7 +266,7 @@ export const usePlayerStore = defineStore('player', () => {
             syncDummyAudioState(false);
         } else {
             MessagePlugin.warning(`播放失败，尝试播放下一首 (${playErrorCount.value}/${MAX_RETRY_COUNT})`).then();
-            setTimeout(() => next(false), 500);
+            next(false)
         }
     };
 
@@ -278,6 +319,28 @@ export const usePlayerStore = defineStore('player', () => {
         isPlayerFullScreen.value = !isPlayerFullScreen.value;
     };
 
+    // Persistence Listeners
+    watch(() => [playlist.value, currentIndex.value], () => {
+        localStorage.setItem('qz-player-playlist', JSON.stringify(playlist.value));
+        localStorage.setItem('qz-player-index', currentIndex.value.toString());
+    }, { deep: true });
+
+    watch(addListMode, (newMode) => {
+        localStorage.setItem('qz-player-add-mode', newMode);
+    });
+
+    // Restore initial state (without playing)
+    if (playlist.value.length > 0 && currentIndex.value >= 0 && currentIndex.value < playlist.value.length) {
+        const restoredSong = playlist.value[currentIndex.value];
+        if (restoredSong) {
+            // Use playSong with autoPlay=false to load the song into the engine
+            setTimeout(() => {
+                playSong(restoredSong, false);
+                fetchLyrics(restoredSong);
+            }, 0);
+        }
+    }
+
     return {
         isPlaying,
         currentSong,
@@ -299,6 +362,8 @@ export const usePlayerStore = defineStore('player', () => {
         toggleMode,
         toggleFullScreen,
         lyrics,
-        fetchLyrics
+        fetchLyrics,
+        addListMode,
+        playFromList
     };
 });
\ No newline at end of file
diff --git a/src/renderer/src/views/Playlist.vue b/src/renderer/src/views/Playlist.vue
index c0822b4..e41d53f 100644
--- a/src/renderer/src/views/Playlist.vue
+++ b/src/renderer/src/views/Playlist.vue
@@ -114,11 +114,14 @@ const coverGradient = computed(() => {
 // Mock Playlist Data
 const songs = ref(Array.from({ length: 15 }, (_, i) => ({
     id: i + 1,
-    title: `Song Title ${i + 1}`,
+    name: `Song Title ${i + 1}`,
     artist: `Artist Name ${i + 1}`,
-    album: `Album Mock`,
+    albumName: `Album Mock`,
     duration: '03:30',
-    url: 'http://commondatastorage.googleapis.com/codeskulptor-demos/riceracer_assets/music/win.ogg' 
+    url: 'http://commondatastorage.googleapis.com/codeskulptor-demos/riceracer_assets/music/win.ogg',
+    picUrl: '',
+    source: 'local',
+    type: 'Local' 
 })));
 
 const songCount = computed(() => songs.value.length);
@@ -128,7 +131,7 @@ const handlePlayAll = () => {
 };
 
 const handlePlaySong = (index: number) => {
-    playerStore.setPlaylist(songs.value, index);
+    playerStore.playFromList(songs.value[index], songs.value);
 };
 </script>
 
diff --git a/src/renderer/src/views/Search.vue b/src/renderer/src/views/Search.vue
index 254e59c..bde6774 100644
--- a/src/renderer/src/views/Search.vue
+++ b/src/renderer/src/views/Search.vue
@@ -23,7 +23,18 @@
         </div>
       </transition>
 
-      <div class="song-list-container" v-if="!loading && songs.length > 0">
+      <div class="error-state" v-if="!loading && error">
+          <div class="icon-box">
+            <Icon icon="lucide:alert-circle" class="state-icon" />
+          </div>
+          <p class="state-text">搜索出错了，请稍后重试</p>
+          <button class="retry-btn" @click="fetchData">
+            <Icon icon="lucide:refresh-cw" class="btn-icon" />
+            重试
+          </button>
+      </div>
+
+      <div class="song-list-container" v-else-if="!loading && songs.length > 0">
         <div class="list-header">
            <div class="col-index">#</div>
            <div class="col-title">标题</div>
@@ -79,8 +90,12 @@
           <span>正在搜索...</span>
       </div>
 
-      <div class="empty-state" v-if="!loading && songs.length === 0">
+      <div class="empty-state" v-if="!loading && !error && songs.length === 0">
           <span>未找到相关歌曲</span>
+          <button class="retry-btn" @click="fetchData">
+            <Icon icon="lucide:refresh-cw" class="btn-icon" />
+            重试
+          </button>
       </div>
     </div>
   </div>
@@ -103,8 +118,10 @@ const currentPage = ref(1);
 const showSettings = ref(false);
 const savedLimit = localStorage.getItem('qz-search-limit');
 const limit = ref(savedLimit ? Number(savedLimit) : 30);
+
 const total = ref(0);
 const loading = ref(false);
+const error = ref(false);
 const songs = ref<Song[]>([]);
 
 const totalPages = computed(() => {
@@ -140,6 +157,7 @@ const fetchData = async () => {
     if (!query.value) return;
     
     loading.value = true;
+    error.value = false;
     songs.value = [];
     
     try {
@@ -154,6 +172,7 @@ const fetchData = async () => {
         }
     } catch (e) {
         console.error("Search failed", e);
+        error.value = true;
     } finally {
         loading.value = false;
     }
@@ -165,7 +184,7 @@ const changePage = (page: number) => {
 };
 
 const handlePlaySong = (index: number) => {
-    playerStore.setPlaylist(songs.value, index);
+    playerStore.playFromList(songs.value[index], songs.value);
 };
 
 const getHighlightRegex = (q: string) => {
@@ -593,18 +612,71 @@ watch(limit, (newLimit) => {
 }
 
 /* States */
-.loading-state, .empty-state {
+.loading-state, .empty-state, .error-state {
     padding: 60px 0;
     display: flex;
     flex-direction: column;
     align-items: center;
+    justify-content: center;
     gap: 16px;
     color: var(--color-text-muted);
+    min-height: 300px;
 }
 
 .spin {
     animation: spin 1s linear infinite;
     font-size: 32px;
+    color: var(--color-accent);
+}
+
+.error-state .icon-box {
+    width: 64px;
+    height: 64px;
+    background: var(--color-bg-tertiary);
+    border-radius: 50%;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    margin-bottom: 8px;
+}
+
+.state-icon {
+    font-size: 32px;
+    color: var(--color-accent);
+}
+
+.state-text {
+    font-size: 15px;
+    color: var(--color-text-secondary);
+}
+
+.retry-btn {
+    margin-top: 8px;
+    padding: 8px 24px;
+    background: var(--color-accent);
+    color: white; /* Ensure text is readable on accent color */
+    border-radius: var(--radius-full);
+    font-size: 14px;
+    font-weight: 500;
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    transition: all 0.2s;
+    box-shadow: var(--shadow-sm);
+}
+
+.retry-btn:hover {
+    transform: translateY(-1px);
+    box-shadow: var(--shadow-md);
+    filter: brightness(1.1);
+}
+
+.retry-btn:active {
+    transform: translateY(0);
+}
+
+.retry-btn .btn-icon {
+    font-size: 16px;
 }
 
 @keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }