diff --git a/config/youtube.ini b/config/youtube.ini
index e9156c8..f5dc080 100644
--- a/config/youtube.ini
+++ b/config/youtube.ini
@@ -5,5 +5,5 @@ key = x04z-564w-aks7-embw-30y4
 # 可选：是否使用 RTMPS 加密推流，填 否 则用 RTMP（默认 RTMPS）
 ; rtmps = 否
 
-# 可选：视频比特率 kbps，720p 推荐 4000-6000（YouTube 官方 4-6 Mbps）
-; bitrate = 4500
\ No newline at end of file
+# 可选：视频比特率 kbps，YouTube 推荐 2500，可填 3000-4500 提高画质
+; bitrate = 2500
\ No newline at end of file
diff --git a/douyin_youtube_ffplay.py b/douyin_youtube_ffplay.py
index 103b9fa..fe131bf 100644
--- a/douyin_youtube_ffplay.py
+++ b/douyin_youtube_ffplay.py
@@ -84,7 +84,7 @@ def start_douyin_youtube_ffplay(
     rtmps_base = "rtmps://a.rtmp.youtube.com/live2/"
     rtmp_base = "rtmp://a.rtmp.youtube.com/live2/"
     use_rtmps = True
-    b_v, maxrate, bufsize = "4500k", "5500k", "9000k"
+    b_v, maxrate, bufsize = "2500k", "3000k", "5000k"
     stream_key = None
 
     if os.path.exists(config_file):
@@ -165,8 +165,8 @@ def start_douyin_youtube_ffplay(
                 if "h264_nvenc" in (enc.stdout or ""):
                     codec_v = "h264_nvenc"
                     video_args = ["-profile:v", "high", "-level", "4.0",
-                                 "-tune", "ll", "-rc", "vbr", "-cq", "24",
-                                 "-b:v", b_v, "-maxrate", maxrate, "-bufsize", bufsize]
+                                 "-tune", "ll", "-rc", "cbr", "-b:v", b_v,
+                                 "-maxrate", maxrate, "-bufsize", bufsize]
                     print("[INFO] 检测到 NVIDIA GPU → 使用 NVENC 硬件加速")
     except Exception as e:
         print(f"[WARN] NVENC 检测失败，回退软件编码: {e}")