diff --git a/frontend/templates/user_nebula.html b/frontend/templates/user_nebula.html
index 12e073f..0b34ad2 100644
--- a/frontend/templates/user_nebula.html
+++ b/frontend/templates/user_nebula.html
@@ -8,23 +8,23 @@
   <script>
     window.routerBase = "/";
     window.settings = {
-      title: {{printf "%q" .Title}},
-      assets_path: {{printf "%q" .AssetsPath}},
+      title: "{{.Title}}",
+      assets_path: "{{.AssetsPath}}",
       theme: { color: "aurora" },
-      version: {{printf "%q" .Version}},
+      version: "{{.Version}}",
       background_url: "",
-      description: {{printf "%q" .Description}},
+      description: "{{.Description}}",
       i18n: ["zh-CN", "en-US", "ja-JP", "vi-VN", "ko-KR", "zh-TW", "fa-IR"],
-      logo: {{printf "%q" .Logo}}
+      logo: "{{.Logo}}"
     };
 
     window.NEBULA_THEME = {
-      title: {{printf "%q" .Title}},
-      theme: {{printf "%q" .Theme}},
-      version: {{printf "%q" .Version}},
-      description: {{printf "%q" .Description}},
-      logo: {{printf "%q" .Logo}},
-      assetsPath: {{printf "%q" .AssetsPath}},
+      title: "{{.Title}}",
+      theme: "{{.Theme}}",
+      version: "{{.Version}}",
+      description: "{{.Description}}",
+      logo: "{{.Logo}}",
+      assetsPath: "{{.AssetsPath}}",
       config: {{.ThemeConfigJSON}}
     };
 
diff --git a/scratch/check_invalid.py b/scratch/check_invalid.py
new file mode 100644
index 0000000..51781e8
--- /dev/null
+++ b/scratch/check_invalid.py
@@ -0,0 +1,8 @@
+import sys
+try:
+    with open('frontend/admin/locales/zh-CN.js', 'rb') as f:
+        content = f.read()
+    content.decode('utf-8')
+    print('Valid UTF-8')
+except UnicodeDecodeError as e:
+    print(f'Invalid UTF-8 at byte {e.start}: {content[e.start:e.start+10]}')
diff --git a/scratch/scan_encoding.py b/scratch/scan_encoding.py
new file mode 100644
index 0000000..f289170
--- /dev/null
+++ b/scratch/scan_encoding.py
@@ -0,0 +1,35 @@
+import os
+
+def check_encoding(file_path):
+    try:
+        with open(file_path, 'rb') as f:
+            content = f.read()
+        content.decode('utf-8')
+        # Also check for commonMojibake patterns or literal strings
+        # U+FFFD is b'\xef\xbf\xbd' in UTF-8
+        if b'\xef\xbf\xbd' in content:
+            return "Contains U+FFFD (Replacement Character)"
+        return None
+    except UnicodeDecodeError as e:
+        return f"Invalid UTF-8 at byte {e.start}"
+    except Exception as e:
+        return str(e)
+
+search_dir = r"d:\Development\SingBox-Gopanel"
+extensions = ('.go', '.js', '.jsx', '.ts', '.tsx', '.html', '.css', '.json', '.sql', '.md')
+exclude_dirs = {'.git', 'node_modules', 'dist'}
+
+results = []
+for root, dirs, files in os.walk(search_dir):
+    dirs[:] = [d for d in dirs if d not in exclude_dirs]
+    for file in files:
+        if file.endswith(extensions):
+            full_path = os.path.join(root, file)
+            issue = check_encoding(full_path)
+            if issue:
+                results.append(f"{full_path}: {issue}")
+
+if results:
+    print("\n".join(results))
+else:
+    print("No issues found in source files.")