diff --git a/app/downloads.tsx b/app/downloads.tsx
index 9ae4471..72c5e4d 100644
--- a/app/downloads.tsx
+++ b/app/downloads.tsx
@@ -18,6 +18,7 @@ import Video from 'react-native-video';
 let ScreenOrientation: typeof import('expo-screen-orientation') | null = null;
 try { ScreenOrientation = require('expo-screen-orientation'); } catch {}
 import { useDownloadStore, DownloadTask } from '../store/downloadStore';
+import { LanShareModal } from '../components/LanShareModal';
 
 function formatFileSize(bytes?: number): string {
   if (!bytes || bytes <= 0) return '';
@@ -32,6 +33,7 @@ export default function DownloadsScreen() {
   const { tasks, loadFromStorage, removeTask } = useDownloadStore();
   const [playingUri, setPlayingUri] = useState<string | null>(null);
   const [playingTitle, setPlayingTitle] = useState('');
+  const [shareTask, setShareTask] = useState<(DownloadTask & { key: string }) | null>(null);
   const { width, height } = useWindowDimensions();
   const isLandscape = width > height;
 
@@ -89,6 +91,7 @@ export default function DownloadsScreen() {
                 if (item.localUri) openPlayer(item.localUri, item.title);
               }}
               onDelete={() => removeTask(item.key)}
+              onShare={() => setShareTask(item)}
             />
           )}
           ItemSeparatorComponent={() => <View style={styles.separator} />}
@@ -96,6 +99,12 @@ export default function DownloadsScreen() {
         />
       )}
 
+      <LanShareModal
+        visible={!!shareTask}
+        task={shareTask}
+        onClose={() => setShareTask(null)}
+      />
+
       {/* Local file player modal */}
       <Modal
         visible={!!playingUri}
@@ -134,10 +143,12 @@ function DownloadRow({
   task,
   onPlay,
   onDelete,
+  onShare,
 }: {
   task: DownloadTask & { key: string };
   onPlay: () => void;
   onDelete: () => void;
+  onShare: () => void;
 }) {
   return (
     <View style={styles.row}>
@@ -165,10 +176,15 @@ function DownloadRow({
       </View>
       <View style={styles.actions}>
         {task.status === 'done' && (
-          <TouchableOpacity style={styles.playBtn} onPress={onPlay}>
-            <Ionicons name="play-circle" size={20} color="#00AEEC" />
-            <Text style={styles.playTxt}>播放</Text>
-          </TouchableOpacity>
+          <>
+            <TouchableOpacity style={styles.playBtn} onPress={onPlay}>
+              <Ionicons name="play-circle" size={20} color="#00AEEC" />
+              <Text style={styles.playTxt}>播放</Text>
+            </TouchableOpacity>
+            <TouchableOpacity style={styles.shareBtn} onPress={onShare}>
+              <Ionicons name="share-social-outline" size={20} color="#00AEEC" />
+            </TouchableOpacity>
+          </>
         )}
         <TouchableOpacity style={styles.deleteBtn} onPress={onDelete}>
           <Ionicons name="trash-outline" size={18} color="#bbb" />
@@ -230,6 +246,7 @@ const styles = StyleSheet.create({
   actions: { alignItems: 'center', gap: 8 },
   playBtn: { flexDirection: 'row', alignItems: 'center', gap: 3 },
   playTxt: { fontSize: 13, color: '#00AEEC' },
+  shareBtn: { padding: 4 },
   deleteBtn: { padding: 4 },
   separator: { height: StyleSheet.hairlineWidth, backgroundColor: '#f0f0f0', marginLeft: 108 },
   // player modal
diff --git a/components/LanShareModal.tsx b/components/LanShareModal.tsx
new file mode 100644
index 0000000..230db41
--- /dev/null
+++ b/components/LanShareModal.tsx
@@ -0,0 +1,175 @@
+import React, { useEffect, useRef, useState } from 'react';
+import {
+  Modal,
+  View,
+  Text,
+  StyleSheet,
+  TouchableOpacity,
+  Image,
+  ActivityIndicator,
+  Animated,
+  ScrollView,
+} from 'react-native';
+import * as Clipboard from 'expo-clipboard';
+import { Ionicons } from '@expo/vector-icons';
+import { DownloadTask } from '../store/downloadStore';
+import { startLanServer, stopLanServer, buildVideoUrl } from '../utils/lanServer';
+
+interface Props {
+  visible: boolean;
+  task: DownloadTask | null;
+  onClose: () => void;
+}
+
+export function LanShareModal({ visible, task, onClose }: Props) {
+  const [videoUrl, setVideoUrl] = useState<string | null>(null);
+  const [qrImageLoaded, setQrImageLoaded] = useState(false);
+  const [loading, setLoading] = useState(false);
+  const [copied, setCopied] = useState(false);
+  const slideY = useRef(new Animated.Value(400)).current;
+
+  useEffect(() => {
+    if (visible) {
+      Animated.spring(slideY, { toValue: 0, useNativeDriver: true, bounciness: 4 }).start();
+    } else {
+      slideY.setValue(400);
+    }
+  }, [visible]);
+
+  useEffect(() => {
+    if (!visible || !task) return;
+    setVideoUrl(null);
+    setQrImageLoaded(false);
+    setLoading(true);
+    console.log(123123,'baseUrlbaseUrl')
+    startLanServer()
+    .then((baseUrl) => {
+        console.log(baseUrl,'baseUrl')
+        setVideoUrl(buildVideoUrl(baseUrl, task.bvid, task.qn));
+      })
+      .catch(() => setVideoUrl(null))
+      .finally(() => setLoading(false));
+
+    return () => {
+      stopLanServer();
+    };
+  }, [visible, task?.bvid, task?.qn]);
+
+  async function handleCopy() {
+    if (!videoUrl) return;
+    await Clipboard.setStringAsync(videoUrl);
+    setCopied(true);
+    setTimeout(() => setCopied(false), 2000);
+  }
+
+  function handleClose() {
+    stopLanServer();
+    onClose();
+  }
+
+  const qrSrc = videoUrl
+    ? `https://api.qrserver.com/v1/create-qr-code/?data=${encodeURIComponent(videoUrl)}&size=400x400`
+    : null;
+
+  return (
+    <Modal visible={visible} transparent animationType="none" onRequestClose={handleClose}>
+      <View style={styles.overlay} pointerEvents="box-none" />
+      <Animated.View style={[styles.sheetWrapper, { transform: [{ translateY: slideY }] }]}>
+        <View style={styles.sheet}>
+          <Text style={styles.title}>局域网分享</Text>
+
+          {task && (
+            <Text style={styles.taskTitle} numberOfLines={2}>
+              {task.title}  ·  {task.qdesc}
+            </Text>
+          )}
+
+          {loading ? (
+            <ActivityIndicator size="large" color="#00AEEC" style={styles.loader} />
+          ) : qrSrc ? (
+            <>
+              <View style={styles.qrWrapper}>
+                <Image
+                  source={{ uri: qrSrc }}
+                  style={styles.qr}
+                  onLoad={() => setQrImageLoaded(true)}
+                />
+                {!qrImageLoaded && (
+                  <View style={styles.qrLoader}>
+                    <ActivityIndicator size="large" color="#00AEEC" />
+                  </View>
+                )}
+              </View>
+
+              <TouchableOpacity style={styles.urlRow} onPress={handleCopy} activeOpacity={0.7}>
+                <ScrollView horizontal showsHorizontalScrollIndicator={false} style={styles.urlScroll}>
+                  <Text style={styles.urlText}>{videoUrl}</Text>
+                </ScrollView>
+                <Ionicons
+                  name={copied ? 'checkmark-circle' : 'copy-outline'}
+                  size={20}
+                  color={copied ? '#4caf50' : '#00AEEC'}
+                  style={{ marginLeft: 8 }}
+                />
+              </TouchableOpacity>
+
+              <Text style={styles.hint}>同一 WiFi 下，用浏览器扫码或输入链接即可播放</Text>
+            </>
+          ) : (
+            <Text style={styles.hint}>启动服务器失败，请确认已连接 WiFi12312</Text>
+          )}
+
+          <TouchableOpacity style={styles.closeBtn} onPress={handleClose}>
+            <Text style={styles.closeTxt}>关闭</Text>
+          </TouchableOpacity>
+        </View>
+      </Animated.View>
+    </Modal>
+  );
+}
+
+const styles = StyleSheet.create({
+  overlay: {
+    ...StyleSheet.absoluteFillObject,
+    backgroundColor: 'rgba(0,0,0,0.5)',
+  },
+  sheetWrapper: {
+    position: 'absolute',
+    bottom: 0,
+    left: 0,
+    right: 0,
+  },
+  sheet: {
+    backgroundColor: '#fff',
+    borderTopLeftRadius: 16,
+    borderTopRightRadius: 16,
+    padding: 24,
+    alignItems: 'center',
+  },
+  title: { fontSize: 18, fontWeight: '600', marginBottom: 12 },
+  taskTitle: { fontSize: 13, color: '#666', marginBottom: 16, textAlign: 'center' },
+  loader: { marginVertical: 40 },
+  qrWrapper: { width: 200, height: 200, marginBottom: 16 },
+  qr: { width: 200, height: 200 },
+  qrLoader: {
+    ...StyleSheet.absoluteFillObject,
+    alignItems: 'center',
+    justifyContent: 'center',
+    backgroundColor: '#f4f4f4',
+  },
+  urlRow: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    backgroundColor: '#f4f4f4',
+    borderRadius: 8,
+    paddingHorizontal: 12,
+    paddingVertical: 8,
+    marginBottom: 12,
+    maxWidth: '100%',
+  },
+  urlScroll: { maxWidth: 260 },
+  urlText: { fontSize: 12, color: '#333', fontFamily: 'monospace' },
+  hint: { fontSize: 12, color: '#999', marginBottom: 20, textAlign: 'center' },
+  closeBtn: { padding: 12 },
+  closeTxt: { fontSize: 14, color: '#00AEEC' },
+});
diff --git a/components/LoginModal.tsx b/components/LoginModal.tsx
index 001b075..e6b2b48 100644
--- a/components/LoginModal.tsx
+++ b/components/LoginModal.tsx
@@ -112,8 +112,8 @@ export function LoginModal({ visible, onClose }: Props) {
       Alert.alert("已保存", "二维码已存入相册，请用哔哩哔哩扫码登录", [
         { text: "关闭", style: "cancel" },
         {
-          text: "打开哔哩哔哩扫一扫",
-          onPress: () => Linking.openURL("bilibili://scan"),
+          text: "打开哔哩哔哩",
+          onPress: () => Linking.openURL("bilibili://"),
         },
       ]);
     } catch {
diff --git a/components/NativeVideoPlayer.tsx b/components/NativeVideoPlayer.tsx
index a1448b1..3855936 100644
--- a/components/NativeVideoPlayer.tsx
+++ b/components/NativeVideoPlayer.tsx
@@ -60,6 +60,7 @@ function findFrameByTime(index: number[], seekTime: number): number {
 
 export interface NativeVideoPlayerRef {
   seek: (t: number) => void;
+  setPaused: (v: boolean) => void;
 }
 
 interface Props {
@@ -132,6 +133,9 @@ export const NativeVideoPlayer = forwardRef<NativeVideoPlayerRef, Props>(
       seek: (t: number) => {
         videoRef.current?.seek(t);
       },
+      setPaused: (v: boolean) => {
+        setPaused(v);
+      },
     }));
 
     const currentDesc =
@@ -547,7 +551,7 @@ export const NativeVideoPlayer = forwardRef<NativeVideoPlayerRef, Props>(
                   </TouchableOpacity>
                 )}
                 <TouchableOpacity style={styles.ctrlBtn} onPress={onFullscreen}>
-                  <Ionicons name="expand" size={16} color="#fff" />
+                  <Ionicons name="expand" size={18} color="#fff" />
                 </TouchableOpacity>
               </View>
             </LinearGradient>
diff --git a/components/VideoPlayer.tsx b/components/VideoPlayer.tsx
index 49832f2..9e265f1 100644
--- a/components/VideoPlayer.tsx
+++ b/components/VideoPlayer.tsx
@@ -21,7 +21,6 @@ export function VideoPlayer({ playData, qualities, currentQn, onQualityChange, b
   const [fullscreen, setFullscreen] = useState(false);
   const { width, height } = useWindowDimensions();
   const VIDEO_HEIGHT = width * 0.5625;
-  // In Expo Go ScreenOrientation is unavailable; simulate landscape via CSS transform
   const needsRotation = !ScreenOrientation && fullscreen;
   const lastTimeRef = useRef(0);
   const portraitRef = useRef<NativeVideoPlayerRef>(null);
@@ -33,8 +32,9 @@ export function VideoPlayer({ playData, qualities, currentQn, onQualityChange, b
   };
 
   const handleExitFullscreen = async () => {
-    // Seek portrait player to current position before it becomes visible again
+    // 退出全屏：同步进度，竖屏一律暂停
     portraitRef.current?.seek(lastTimeRef.current);
+    portraitRef.current?.setPaused(true);
     setFullscreen(false);
     if (Platform.OS !== 'web')
       await ScreenOrientation?.lockAsync(ScreenOrientation.OrientationLock.PORTRAIT_UP);
diff --git a/package-lock.json b/package-lock.json
index 325138c..68f2430 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,15 +8,18 @@
       "name": "reactbilibiliapp",
       "version": "1.0.0",
       "dependencies": {
+        "@dr.pogodin/react-native-static-server": "^0.26.0",
         "@expo/vector-icons": "^15.0.2",
         "@react-native-async-storage/async-storage": "2.2.0",
         "axios": "^1.13.6",
         "expo": "~55.0.5",
         "expo-av": "^16.0.8",
+        "expo-clipboard": "~55.0.9",
         "expo-dev-client": "~55.0.11",
         "expo-file-system": "~55.0.10",
         "expo-linear-gradient": "~55.0.8",
         "expo-media-library": "~55.0.10",
+        "expo-network": "~55.0.9",
         "expo-router": "~55.0.4",
         "expo-screen-orientation": "~55.0.8",
         "expo-status-bar": "~55.0.4",
@@ -1461,6 +1464,58 @@
         "node": ">=6.9.0"
       }
     },
+    "node_modules/@dr.pogodin/js-utils": {
+      "version": "0.1.6",
+      "resolved": "https://registry.npmjs.org/@dr.pogodin/js-utils/-/js-utils-0.1.6.tgz",
+      "integrity": "sha512-v4hYKgHEL9Nfzoe4Vn4Sq2y7To46Q8V6vEBMpteghGOvitXmbhgmYV03GPh9SUuu9CV6vT+4u4GBnhBcK2m9vQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.28.6"
+      }
+    },
+    "node_modules/@dr.pogodin/react-native-fs": {
+      "version": "2.37.0",
+      "resolved": "https://registry.npmjs.org/@dr.pogodin/react-native-fs/-/react-native-fs-2.37.0.tgz",
+      "integrity": "sha512-0LtRxZ+yJm3z4eiNmwkYvdMvglq74MZcqQBBJwaUwILqfSBNYAkO3jJZOvJdIR2+e06FJBoxuQ1P34mSDj8T8w==",
+      "license": "MIT",
+      "peer": true,
+      "workspaces": [
+        "example"
+      ],
+      "dependencies": {
+        "buffer": "^6.0.3",
+        "http-status-codes": "^2.3.0"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/birdofpreyru"
+      },
+      "peerDependencies": {
+        "react": "*",
+        "react-native": "*"
+      }
+    },
+    "node_modules/@dr.pogodin/react-native-static-server": {
+      "version": "0.26.0",
+      "resolved": "https://registry.npmjs.org/@dr.pogodin/react-native-static-server/-/react-native-static-server-0.26.0.tgz",
+      "integrity": "sha512-BDvi9L6SvH3lJFq5mJWO8FMHBWk9C+PHruniT+XVSKusiuL9cVXxNHyjE5aS/+ZzDiqEQKStexDPsiUZE2m3nw==",
+      "license": "MIT",
+      "workspaces": [
+        "example"
+      ],
+      "dependencies": {
+        "@dr.pogodin/js-utils": "^0.1.5"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/birdofpreyru"
+      },
+      "peerDependencies": {
+        "@dr.pogodin/react-native-fs": ">= 2.22.0",
+        "react": "*",
+        "react-native": "*"
+      }
+    },
     "node_modules/@expo-google-fonts/material-symbols": {
       "version": "0.4.25",
       "resolved": "https://registry.npmjs.org/@expo-google-fonts/material-symbols/-/material-symbols-0.4.25.tgz",
@@ -3596,6 +3651,31 @@
         "node-int64": "^0.4.0"
       }
     },
+    "node_modules/buffer": {
+      "version": "6.0.3",
+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-6.0.3.tgz",
+      "integrity": "sha512-FTiCpNxtwiZZHEZbcbTIcZjERVICn9yq/pDFkTl95/AxzD1naBctN7YO68riM/gLSDY7sdrMby8hofADYuuqOA==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT",
+      "peer": true,
+      "dependencies": {
+        "base64-js": "^1.3.1",
+        "ieee754": "^1.2.1"
+      }
+    },
     "node_modules/buffer-from": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.2.tgz",
@@ -4359,6 +4439,17 @@
         }
       }
     },
+    "node_modules/expo-clipboard": {
+      "version": "55.0.9",
+      "resolved": "https://registry.npmjs.org/expo-clipboard/-/expo-clipboard-55.0.9.tgz",
+      "integrity": "sha512-WJ9ougE8fEDu3/RV5Vz3gE5aNgnj1C0WByXCz3WUj8y/06bJyaIUDMq8FDLv3n0AO3guiErmkUunsD0EzSDUUw==",
+      "license": "MIT",
+      "peerDependencies": {
+        "expo": "*",
+        "react": "*",
+        "react-native": "*"
+      }
+    },
     "node_modules/expo-constants": {
       "version": "55.0.7",
       "resolved": "https://registry.npmjs.org/expo-constants/-/expo-constants-55.0.7.tgz",
@@ -4562,6 +4653,16 @@
         "react-native": "*"
       }
     },
+    "node_modules/expo-network": {
+      "version": "55.0.9",
+      "resolved": "https://registry.npmjs.org/expo-network/-/expo-network-55.0.9.tgz",
+      "integrity": "sha512-vuL7s+Zbsbcqh2XxhaZ45mfuYZVn7ikukL27be7hN3zkLxoABNPgbVt+/gEKOxyv2Gzr/Q5JZvfVxCuwDDh0Fg==",
+      "license": "MIT",
+      "peerDependencies": {
+        "expo": "*",
+        "react": "*"
+      }
+    },
     "node_modules/expo-router": {
       "version": "55.0.4",
       "resolved": "https://registry.npmjs.org/expo-router/-/expo-router-55.0.4.tgz",
@@ -5681,6 +5782,13 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/http-status-codes": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/http-status-codes/-/http-status-codes-2.3.0.tgz",
+      "integrity": "sha512-RJ8XvFvpPM/Dmc5SV+dC4y5PCeOhT3x1Hq0NU3rjGeg5a/CqlhZ7uudknPwZFz4aeAXDcbAyaeP7GAo9lvngtA==",
+      "license": "MIT",
+      "peer": true
+    },
     "node_modules/https-proxy-agent": {
       "version": "7.0.6",
       "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-7.0.6.tgz",
@@ -5713,6 +5821,27 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/ieee754": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.2.1.tgz",
+      "integrity": "sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "BSD-3-Clause",
+      "peer": true
+    },
     "node_modules/ignore": {
       "version": "5.3.2",
       "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.3.2.tgz",
diff --git a/package.json b/package.json
index 7473c00..c004550 100644
--- a/package.json
+++ b/package.json
@@ -10,15 +10,18 @@
     "proxy": "node dev-proxy.js"
   },
   "dependencies": {
+    "@dr.pogodin/react-native-static-server": "^0.26.0",
     "@expo/vector-icons": "^15.0.2",
     "@react-native-async-storage/async-storage": "2.2.0",
     "axios": "^1.13.6",
     "expo": "~55.0.5",
     "expo-av": "^16.0.8",
+    "expo-clipboard": "~55.0.9",
     "expo-dev-client": "~55.0.11",
     "expo-file-system": "~55.0.10",
     "expo-linear-gradient": "~55.0.8",
     "expo-media-library": "~55.0.10",
+    "expo-network": "~55.0.9",
     "expo-router": "~55.0.4",
     "expo-screen-orientation": "~55.0.8",
     "expo-status-bar": "~55.0.4",
diff --git a/utils/lanServer.ts b/utils/lanServer.ts
new file mode 100644
index 0000000..d87498a
--- /dev/null
+++ b/utils/lanServer.ts
@@ -0,0 +1,26 @@
+import StaticServer from '@dr.pogodin/react-native-static-server';
+import * as FileSystem from 'expo-file-system/legacy';
+import * as Network from 'expo-network';
+
+const PORT = 18080;
+let server: StaticServer | null = null;
+
+export async function startLanServer(): Promise<string> {
+  if (server) await server.stop();
+  const root = FileSystem.documentDirectory!.replace('file://', '');
+  server = new StaticServer({ fileDir: root, port: PORT, nonLocal: true });
+  await server.start();
+  const ip = await Network.getIpAddressAsync();
+  return `http://${ip}:${PORT}`;
+}
+
+export async function stopLanServer(): Promise<void> {
+  if (server) {
+    await server.stop();
+    server = null;
+  }
+}
+
+export function buildVideoUrl(baseUrl: string, bvid: string, qn: number): string {
+  return `${baseUrl}/${bvid}_${qn}.mp4`;
+}