diff --git a/docs/RELAY_PLAY_STATE_INTEGRATION.md b/docs/RELAY_PLAY_STATE_INTEGRATION.md
index 7c342a7..fa31d06 100644
--- a/docs/RELAY_PLAY_STATE_INTEGRATION.md
+++ b/docs/RELAY_PLAY_STATE_INTEGRATION.md
@@ -60,8 +60,7 @@ const {
 console.log('  [2] 上传播放状态...')
 try {
   // 生成 sessionId（12 位大写字母和数字）
-  const sessionId = Math.random().toString(36).substring(2, 8).toUpperCase() + 
-                   Math.random().toString(36).substring(2, 8).toUpperCase()
+  const sessionId = Array.from({ length: 12 }, () => 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'[Math.floor(Math.random() * 36)]).join('')
   
   // 2.1 提交播放开始状态（relay_play_state_submit）
   const relayResult = await relay_play_state_submit({
diff --git a/module/relay_play_state_submit.js b/module/relay_play_state_submit.js
index fd698e9..ac87205 100644
--- a/module/relay_play_state_submit.js
+++ b/module/relay_play_state_submit.js
@@ -19,7 +19,7 @@ module.exports = (query, request) => {
       id: String(id),
       type: type
     },
-    progress: progress,
+    progress: Number(progress) || 0,
     sessionId: sessionId,
     playMode: playMode
   })