diff --git a/Douyin.py b/Douyin.py
index 6440803..da6a6ba 100644
--- a/Douyin.py
+++ b/Douyin.py
@@ -140,6 +140,40 @@ def choose_video_url(url_list: list[str]) -> str:
     raise ValueError("url_list 为空，无法选择视频地址。")
 
 
+def extract_url_list_from_play_addr(play_addr: Any) -> list[str]:
+    if not isinstance(play_addr, dict):
+        return []
+
+    url_list = play_addr.get("url_list") or []
+    if not isinstance(url_list, list):
+        return []
+
+    return [str(url) for url in url_list if str(url).strip()]
+
+
+def extract_video_url_list(video: Any) -> list[str]:
+    if not isinstance(video, dict):
+        return []
+
+    for address_key in ("play_addr", "play_addr_h264", "play_addr_lowbr"):
+        url_list = extract_url_list_from_play_addr(video.get(address_key))
+        if url_list:
+            return url_list
+
+    bit_rate_list = video.get("bit_rate") or []
+    if not isinstance(bit_rate_list, list):
+        return []
+
+    for bit_rate in bit_rate_list:
+        if not isinstance(bit_rate, dict):
+            continue
+        url_list = extract_url_list_from_play_addr(bit_rate.get("play_addr"))
+        if url_list:
+            return url_list
+
+    return []
+
+
 def build_output_path(
     title: str, 
     video_id: str, 
@@ -201,8 +235,7 @@ def parse_aweme_items(body: Any) -> list[dict[str, str]]:
             continue
 
         video = aweme.get("video") or {}
-        play_addr = video.get("play_addr") or {}
-        url_list = play_addr.get("url_list") or []
+        url_list = extract_video_url_list(video)
         if not url_list:
             continue
 
@@ -220,7 +253,7 @@ def parse_aweme_items(body: Any) -> list[dict[str, str]]:
             {
                 "title": title,
                 "video_id": video_id,
-                "video_url": choose_video_url([str(url) for url in url_list]),
+                "video_url": choose_video_url(url_list),
                 "author_name": author_name,
                 "author_id": author_id,
             }
diff --git a/login_douyin.py b/login_douyin.py
index 7664739..25b9ccc 100644
--- a/login_douyin.py
+++ b/login_douyin.py
@@ -8,6 +8,7 @@ import time
 from pathlib import Path
 
 DEFAULT_RECOMMENDATION_URL = "https://www.douyin.com/"
+DEFAULT_USER_URL = DEFAULT_RECOMMENDATION_URL
 
 DEFAULT_CHROME_PATH = "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome"
 DEFAULT_BROWSER_PORT = 9223
diff --git a/test_douyin.py b/test_douyin.py
index c4fee10..7841000 100644
--- a/test_douyin.py
+++ b/test_douyin.py
@@ -294,6 +294,49 @@ class DouyinModuleTests(unittest.TestCase):
         self.assertEqual(items[0]["author_name"], "测试博主")
         self.assertEqual(items[0]["author_id"], "123456789")
 
+    def test_parse_aweme_items_uses_play_addr_h264_when_play_addr_is_missing(self) -> None:
+        module = importlib.import_module("Douyin")
+        payload = {
+            "aweme_list": [
+                {
+                    "aweme_id": "7619989983668240802",
+                    "desc": "推荐视频",
+                    "video": {
+                        "play_addr_h264": {
+                            "url_list": ["https://v26-web.douyinvod.com/example/h264.mp4"]
+                        }
+                    },
+                }
+            ]
+        }
+        items = module.parse_aweme_items(payload)
+        self.assertEqual(len(items), 1)
+        self.assertEqual(items[0]["video_url"], "https://v26-web.douyinvod.com/example/h264.mp4")
+
+    def test_parse_aweme_items_uses_bit_rate_play_addr_when_top_level_addresses_are_missing(self) -> None:
+        module = importlib.import_module("Douyin")
+        payload = {
+            "aweme_list": [
+                {
+                    "aweme_id": "7619989983668240802",
+                    "desc": "推荐视频",
+                    "video": {
+                        "bit_rate": [
+                            {
+                                "format": "mp4",
+                                "play_addr": {
+                                    "url_list": ["https://v11-weba.douyinvod.com/example/bitrate.mp4"]
+                                },
+                            }
+                        ]
+                    },
+                }
+            ]
+        }
+        items = module.parse_aweme_items(payload)
+        self.assertEqual(len(items), 1)
+        self.assertEqual(items[0]["video_url"], "https://v11-weba.douyinvod.com/example/bitrate.mp4")
+
     def test_build_video_page_url_uses_aweme_id(self) -> None:
         module = importlib.import_module("Douyin")
         self.assertEqual(
diff --git a/test_learning_examples.py b/test_learning_examples.py
index f134834..3fa4b93 100644
--- a/test_learning_examples.py
+++ b/test_learning_examples.py
@@ -299,6 +299,8 @@ class PlaywrightLearningHelperTests(unittest.TestCase):
                 "title": "Playwright 示例",
                 "video_id": "7619989983668240802",
                 "video_url": "https://v26-web.douyinvod.com/example/single.mp4",
+                "author_name": "unknown",
+                "author_id": "unknown",
             },
         )