Fix segmented playback with dynamic wait time calculation

config.js

@@ -80,7 +80,9 @@ export default {
             // 播放当前段落
             if (currentChunk) {
               await engine.MiOT.doAction(7, 3, currentChunk);
-              await new Promise(resolve => setTimeout(resolve, 500)); // 短暂停顿
+              // 根据文字数量计算等待时间（每字约350ms）+ 1秒缓冲
+              const waitTime = currentChunk.length * 350 + 1000;
+              await new Promise(resolve => setTimeout(resolve, waitTime));
             }
             currentChunk = sentence;
           } else {