diff --git a/app/config.json b/app/config.json
index a2822f8..b8f325e 100644
--- a/app/config.json
+++ b/app/config.json
@@ -1,7 +1,6 @@
 {
-    "theme": "light",
+    "theme": "auto",
     "token": "",
     "server_url": "",
-    "server_port": "32400",
-    "library": ""
+    "server_port": "32400"
 }
\ No newline at end of file
diff --git a/app/main.py b/app/main.py
index 3019a28..0b5dce7 100644
--- a/app/main.py
+++ b/app/main.py
@@ -32,13 +32,12 @@ async def login(
     user: str = Form(...),
     pw: str = Form(...),
     url: str = Form(...),
-    port: str = Form("32400"),
-    library: str = Form(...)
+    port: str = Form("32400")
 ):
     config = load_config()
     theme = config.get("theme", "auto")
     try:
-        connect_plex(config, user, pw, url, port, library)
+        connect_plex(config, user, pw, url, port)
         save_config(config)
         return templates.TemplateResponse(
             "login.html",
diff --git a/app/templates/login.html b/app/templates/login.html
index bf2738f..7c80bd9 100644
--- a/app/templates/login.html
+++ b/app/templates/login.html
@@ -21,13 +21,6 @@
         <label for="port" class="form-label">端口</label>
         <input type="text" class="form-control" id="port" name="port" value="32400">
     </div>
-    <div class="mb-3">
-        <label for="library" class="form-label">选择库</label>
-        <select class="form-select" id="library" name="library">
-            <option>Music</option>
-            <option>Podcast</option>
-        </select>
-    </div>
     <button type="submit" class="btn btn-primary">连接</button>
 </form>
 
diff --git a/app/utils/plex_client.py b/app/utils/plex_client.py
index db59ddb..d67659a 100644
--- a/app/utils/plex_client.py
+++ b/app/utils/plex_client.py
@@ -2,7 +2,7 @@ from plexapi.myplex import MyPlexAccount
 from plexapi.server import PlexServer
 
 
-def connect_plex(config, username, password, url, port="32400", library=""):
+def connect_plex(config, username, password, url, port="32400"):
     """Return a connected PlexServer instance and update config with token and server info."""
     token = config.get("token")
     if not token:
@@ -12,5 +12,5 @@ def connect_plex(config, username, password, url, port="32400", library=""):
 
     base_url = f"http://{url}:{port}"
     server = PlexServer(base_url, token)
-    config.update({"server_url": url, "server_port": port, "library": library})
+    config.update({"server_url": url, "server_port": port})
     return server