diff --git a/src/app/admin/page.tsx b/src/app/admin/page.tsx
index b223beb..fec0de6 100644
--- a/src/app/admin/page.tsx
+++ b/src/app/admin/page.tsx
@@ -3936,6 +3936,7 @@ const NetDiskConfigComponent = ({
   const [enabled, setEnabled] = useState(false);
   const [cookie, setCookie] = useState('');
   const [savePath, setSavePath] = useState('/');
+  const [quarkPlayMode, setQuarkPlayMode] = useState<'direct_first' | 'transcode_first'>('direct_first');
   const [mobileEnabled, setMobileEnabled] = useState(false);
   const [mobileAuthorization, setMobileAuthorization] = useState('');
   const [baiduEnabled, setBaiduEnabled] = useState(false);
@@ -3959,6 +3960,7 @@ const NetDiskConfigComponent = ({
     setEnabled(quark?.Enabled || false);
     setCookie(quark?.Cookie || '');
     setSavePath(quark?.SavePath || '/');
+    setQuarkPlayMode(quark?.PlayMode === 'transcode_first' ? 'transcode_first' : 'direct_first');
     setMobileEnabled(mobile?.Enabled || false);
     setMobileAuthorization(mobile?.Authorization || '');
     setBaiduEnabled(config?.NetDiskConfig?.Baidu?.Enabled || false);
@@ -3988,6 +3990,7 @@ const NetDiskConfigComponent = ({
             Enabled: enabled,
             Cookie: cookie,
             SavePath: savePath,
+            PlayMode: quarkPlayMode,
           },
           Mobile: {
             Enabled: mobileEnabled,
@@ -4306,6 +4309,24 @@ const NetDiskConfigComponent = ({
             />
           </div>
 
+          <div>
+            <label className='block text-sm font-medium text-gray-700 dark:text-gray-300 mb-2'>
+              播放方式
+            </label>
+            <select
+              value={quarkPlayMode}
+              onChange={(e) => setQuarkPlayMode(e.target.value === 'transcode_first' ? 'transcode_first' : 'direct_first')}
+              disabled={!enabled}
+              className='w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-800 text-gray-900 dark:text-gray-100 focus:ring-2 focus:ring-blue-500 focus:border-transparent disabled:opacity-50 disabled:cursor-not-allowed'
+            >
+              <option value='direct_first'>直链优先</option>
+              <option value='transcode_first'>转码优先</option>
+            </select>
+            <p className='text-xs text-gray-500 dark:text-gray-400 mt-1'>
+              直链优先会优先使用原画下载地址；转码优先会优先使用夸克转码播放地址。
+            </p>
+          </div>
+
           <div className='flex gap-3'>
             <button
               onClick={handleValidate}
diff --git a/src/app/api/admin/netdisk/route.ts b/src/app/api/admin/netdisk/route.ts
index 4230490..84428e3 100644
--- a/src/app/api/admin/netdisk/route.ts
+++ b/src/app/api/admin/netdisk/route.ts
@@ -79,6 +79,7 @@ export async function POST(request: NextRequest) {
         Enabled: Boolean(Quark?.Enabled),
         Cookie: normalizedCookie,
         SavePath: Quark?.SavePath || '/',
+        PlayMode: Quark?.PlayMode === 'transcode_first' ? 'transcode_first' : 'direct_first',
       };
       adminConfig.NetDiskConfig.Mobile = {
         Enabled: Boolean(Mobile?.Enabled),
diff --git a/src/app/api/netdisk/quark/proxy/route.ts b/src/app/api/netdisk/quark/proxy/route.ts
index 7cf7ceb..e021f0e 100644
--- a/src/app/api/netdisk/quark/proxy/route.ts
+++ b/src/app/api/netdisk/quark/proxy/route.ts
@@ -27,7 +27,7 @@ export async function GET(request: NextRequest) {
       return NextResponse.json({ error: '无效的 episodeIndex' }, { status: 400 });
     }
 
-    const { session, cookie, savePath } = await resolveQuarkSession(id);
+    const { session, cookie, savePath, playMode } = await resolveQuarkSession(id);
     const file = session.files[episodeIndex];
     if (!file) {
       return NextResponse.json({ error: '播放文件不存在' }, { status: 404 });
@@ -52,45 +52,142 @@ export async function GET(request: NextRequest) {
     }
     refreshQuarkNetdiskSession(id);
 
-    const playUrls = await getQuarkPlayUrls(cookie, savedFileId);
+    const playUrls = await getQuarkPlayUrls(cookie, savedFileId, playMode);
     const selected = playUrls.find((item) => item.name === quality) || playUrls[0];
-    if (!selected) {
+    const candidates = selected
+      ? [
+          selected,
+          ...playUrls.filter((item) => item.url !== selected.url),
+        ]
+      : [];
+    if (candidates.length === 0) {
       return NextResponse.json({ error: '未获取到夸克播放地址' }, { status: 500 });
     }
 
     const range = request.headers.get('range');
-    const abortController = new AbortController();
-    const timeoutId = setTimeout(() => abortController.abort(), 300000);
+    const passthroughHeaderNames = [
+      'accept',
+      'accept-language',
+      'accept-encoding',
+      'connection',
+      'sec-fetch-dest',
+      'sec-fetch-mode',
+      'sec-fetch-site',
+    ];
+    const passthroughHeaders: Record<string, string> = {};
+    for (const name of passthroughHeaderNames) {
+      const value = request.headers.get(name);
+      if (value) passthroughHeaders[name] = value;
+    }
 
     try {
-      const upstream = await fetch(selected.url, {
-        headers: {
-          ...getQuarkPlayHeaders(cookie),
-          ...(range ? { Range: range } : {}),
+      let upstream: Response | null = null;
+      let lastStatus = 500;
+      const headerProfiles = [
+        {
+          name: 'quark-empty-ua',
+          headers: {
+            ...passthroughHeaders,
+            ...getQuarkPlayHeaders(cookie),
+          },
         },
-        cache: 'no-store',
-        signal: abortController.signal,
-      });
+        {
+          name: 'quark-api-ua',
+          headers: {
+            ...passthroughHeaders,
+            cookie,
+            referer: 'https://pan.quark.cn/',
+            'user-agent':
+              'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) quark-cloud-drive/2.5.20 Chrome/100.0.4896.160 Electron/18.3.5.4-b478491100 Safari/537.36 Channel/pckk_other_ch',
+          },
+        },
+        {
+          name: 'quark-no-ua',
+          headers: {
+            ...passthroughHeaders,
+            cookie,
+            referer: 'https://pan.quark.cn/',
+          },
+        },
+        {
+          name: 'browser-origin',
+          headers: {
+            ...passthroughHeaders,
+            cookie,
+            origin: 'https://pan.quark.cn',
+            referer: 'https://pan.quark.cn/',
+            'user-agent':
+              request.headers.get('user-agent') ||
+              'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36',
+          },
+        },
+      ];
 
-      clearTimeout(timeoutId);
+      for (const candidate of candidates) {
+        for (const profile of headerProfiles) {
+          const abortController = new AbortController();
+          const timeoutId = setTimeout(() => abortController.abort(), 300000);
 
-      if (!upstream.ok || !upstream.body) {
+          try {
+            const requestHeaders = {
+              ...profile.headers,
+              ...(range ? { Range: range } : {}),
+            };
+            const response = await fetch(candidate.url, {
+              headers: requestHeaders,
+              cache: 'no-store',
+              signal: abortController.signal,
+            });
+
+            clearTimeout(timeoutId);
+            if (response.ok && response.body) {
+              upstream = response;
+              if (candidate.url !== selected.url) {
+                console.warn(`[quark] fallback play url used: ${selected.name} -> ${candidate.name}`);
+              }
+              if (profile.name !== 'quark-empty-ua') {
+                console.warn(`[quark] fallback header profile used: ${profile.name}`);
+              }
+              break;
+            }
+
+            lastStatus = response.status || 500;
+            const errorText = await response.text().catch(() => '');
+            console.warn(
+              `[quark] play url failed: ${candidate.name} / ${profile.name} (${lastStatus}) ${errorText.slice(0, 200)}`
+            );
+          } catch (error) {
+            clearTimeout(timeoutId);
+            if (error instanceof Error && error.name === 'AbortError') {
+              throw error;
+            }
+            console.warn(`[quark] play url request failed: ${candidate.name} / ${profile.name}`, error);
+          }
+        }
+
+        if (upstream) {
+          break;
+        }
+      }
+
+      if (!upstream) {
         return NextResponse.json(
-          { error: `夸克视频代理失败 (${upstream.status})` },
-          { status: upstream.status || 500 }
+          { error: `夸克视频代理失败 (${lastStatus})` },
+          { status: lastStatus }
         );
       }
 
+      const response = upstream as Response & { body: ReadableStream<Uint8Array> };
       const responseHeaders = new Headers();
       const copyHeaders = ['content-type', 'content-length', 'content-range', 'accept-ranges', 'etag', 'last-modified'];
       copyHeaders.forEach((name) => {
-        const value = upstream.headers.get(name);
+        const value = response.headers.get(name);
         if (value) responseHeaders.set(name, value);
       });
       responseHeaders.set('Cache-Control', 'private, no-store');
 
       const { readable, writable } = new TransformStream();
-      const reader = upstream.body.getReader();
+      const reader = response.body.getReader();
 
       void (async () => {
         const writer = writable.getWriter();
@@ -125,11 +222,10 @@ export async function GET(request: NextRequest) {
       })();
 
       return new Response(readable, {
-        status: range && upstream.headers.get('content-range') ? 206 : upstream.status,
+        status: range && response.headers.get('content-range') ? 206 : response.status,
         headers: responseHeaders,
       });
     } catch (error) {
-      clearTimeout(timeoutId);
       if (error instanceof Error && error.name === 'AbortError') {
         return NextResponse.json({ error: '夸克网盘代理超时' }, { status: 504 });
       }
diff --git a/src/lib/admin.types.ts b/src/lib/admin.types.ts
index f41b7b4..6d7dcea 100644
--- a/src/lib/admin.types.ts
+++ b/src/lib/admin.types.ts
@@ -152,6 +152,7 @@ export interface AdminConfig {
       Enabled: boolean;
       Cookie: string;
       SavePath: string;
+      PlayMode?: 'direct_first' | 'transcode_first';
     };
     Mobile?: {
       Enabled: boolean;
diff --git a/src/lib/config.ts b/src/lib/config.ts
index 49d0b25..256b953 100644
--- a/src/lib/config.ts
+++ b/src/lib/config.ts
@@ -724,6 +724,7 @@ export function configSelfCheck(adminConfig: AdminConfig): AdminConfig {
         Enabled: false,
         Cookie: '',
         SavePath: '/',
+        PlayMode: 'direct_first',
       },
       Mobile: {
         Enabled: false,
@@ -761,8 +762,12 @@ export function configSelfCheck(adminConfig: AdminConfig): AdminConfig {
       Enabled: false,
       Cookie: '',
       SavePath: '/',
+      PlayMode: 'direct_first',
     };
   }
+  if (!adminConfig.NetDiskConfig.Quark.PlayMode) {
+    adminConfig.NetDiskConfig.Quark.PlayMode = 'direct_first';
+  }
 
   if (!adminConfig.NetDiskConfig.Mobile) {
     adminConfig.NetDiskConfig.Mobile = {
diff --git a/src/lib/netdisk/quark-session-resolver.ts b/src/lib/netdisk/quark-session-resolver.ts
index e1560e9..f0cb3d5 100644
--- a/src/lib/netdisk/quark-session-resolver.ts
+++ b/src/lib/netdisk/quark-session-resolver.ts
@@ -1,6 +1,7 @@
 import { getConfig } from '@/lib/config';
 
 import { listQuarkShareVideos } from './quark.client';
+import type { QuarkPlayMode } from './quark.client';
 import {
   createQuarkNetdiskSession,
   getQuarkNetdiskSession,
@@ -33,5 +34,12 @@ export async function resolveQuarkSession(id: string) {
     throw new Error('夸克网盘播放信息恢复失败');
   }
 
-  return { session, cookie: quarkConfig.Cookie, savePath: quarkConfig.SavePath || '/' };
+  const playMode: QuarkPlayMode = quarkConfig.PlayMode === 'transcode_first' ? 'transcode_first' : 'direct_first';
+
+  return {
+    session,
+    cookie: quarkConfig.Cookie,
+    savePath: quarkConfig.SavePath || '/',
+    playMode,
+  };
 }
diff --git a/src/lib/netdisk/quark.client.ts b/src/lib/netdisk/quark.client.ts
index be35421..1ea7a64 100644
--- a/src/lib/netdisk/quark.client.ts
+++ b/src/lib/netdisk/quark.client.ts
@@ -3,6 +3,8 @@
 const QUARK_SHARE_API_BASE = 'https://drive-h.quark.cn/1/clouddrive';
 const QUARK_DRIVE_API_BASE = 'https://drive-pc.quark.cn/1/clouddrive';
 const QUARK_QUERY = 'pr=ucpro&fr=pc';
+const QUARK_API_USER_AGENT =
+  'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) quark-cloud-drive/2.5.20 Chrome/100.0.4896.160 Electron/18.3.5.4-b478491100 Safari/537.36 Channel/pckk_other_ch';
 
 export interface QuarkShareLinkInfo {
   pwdId: string;
@@ -40,6 +42,8 @@ export interface QuarkShareVideoListResult {
   }>;
 }
 
+export type QuarkPlayMode = 'direct_first' | 'transcode_first';
+
 const VIDEO_EXTENSIONS = [
   '.mp4',
   '.mkv',
@@ -69,20 +73,16 @@ function getHeaders(cookie: string): HeadersInit {
   return {
     'content-type': 'application/json',
     cookie,
-    origin: 'https://pan.quark.cn',
     referer: 'https://pan.quark.cn/',
-    'user-agent':
-      'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36',
+    'user-agent': QUARK_API_USER_AGENT,
   };
 }
 
 export function getQuarkPlayHeaders(cookie: string): Record<string, string> {
   return {
     cookie,
-    origin: 'https://pan.quark.cn',
     referer: 'https://pan.quark.cn/',
-    'user-agent':
-      'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36',
+    'user-agent': QUARK_API_USER_AGENT,
   };
 }
 
@@ -685,7 +685,8 @@ export async function saveQuarkShareFile(
 
 export async function getQuarkPlayUrls(
   cookie: string,
-  savedFileId: string
+  savedFileId: string,
+  playMode: QuarkPlayMode = 'direct_first'
 ): Promise<Array<{ name: string; url: string; priority: number }>> {
   const safeCookie = assertQuarkCookieHeaderSafe(cookie);
   const headers = getHeaders(safeCookie);
@@ -710,8 +711,8 @@ export async function getQuarkPlayUrls(
         priority: 9999,
       });
     }
-  } catch {
-    // ignore download failure, continue transcoding fallback
+  } catch (error) {
+    console.warn('[quark] get original download url failed:', error);
   }
 
   try {
@@ -748,12 +749,18 @@ export async function getQuarkPlayUrls(
         }
       }
     }
-  } catch {
-    // ignore transcoding failure
+  } catch (error) {
+    console.warn('[quark] get transcoding play url failed:', error);
   }
 
   const deduped = urls.filter((item, index, array) => array.findIndex((v) => v.url === item.url) === index);
-  deduped.sort((a, b) => b.priority - a.priority);
+  deduped.sort((a, b) => {
+    if (playMode === 'transcode_first') {
+      if (a.name === '原画' && b.name !== '原画') return 1;
+      if (a.name !== '原画' && b.name === '原画') return -1;
+    }
+    return b.priority - a.priority;
+  });
 
   if (deduped.length === 0) {
     throw new Error('未获取到夸克播放地址');