diff --git a/.gitea/workflows/sphinx_deploy.yml b/.gitea/workflows/sphinx_deploy.yml
index 18f2f41..829d341 100644
--- a/.gitea/workflows/sphinx_deploy.yml
+++ b/.gitea/workflows/sphinx_deploy.yml
@@ -37,7 +37,7 @@ jobs:
             
             if [ $REQ_MOD_TIME -gt $VENV_MOD_TIME ]; then
               echo "Master branch requirements updated, installing new dependencies..."
-              pip install -r requirements.txt
+              pip install -r requirements.txt --no-cache-dir
               echo $REQ_MOD_TIME > .venv-shared/last_update.txt
             fi
           fi
diff --git a/source/_static/custom.js b/source/_static/custom.js
new file mode 100644
index 0000000..683a00c
--- /dev/null
+++ b/source/_static/custom.js
@@ -0,0 +1,17 @@
+document.addEventListener('DOMContentLoaded', function() {
+    // 禁用右键菜单
+    document.addEventListener('contextmenu', function(e) {
+        e.preventDefault();
+    });
+    
+    // 禁用文本选择
+    document.styleSheets[0].addRule('body', '-webkit-user-select: none!important;');
+    document.styleSheets[0].addRule('body', '-moz-user-select: none!important;');
+    document.styleSheets[0].addRule('body', '-ms-user-select: none!important;');
+    document.styleSheets[0].addRule('body', 'user-select: none!important;');
+    
+    // 禁用拖拽
+    document.addEventListener('dragstart', function(e) {
+        e.preventDefault();
+    });
+});
\ No newline at end of file
diff --git a/source/conf.py b/source/conf.py
index 01ba127..7d26aae 100644
--- a/source/conf.py
+++ b/source/conf.py
@@ -59,6 +59,10 @@ html_theme_options = {
 
 
 # ================= 高级功能 =================
+html_js_files = [
+    'custom.js'
+]
+
 # ================== Mermaid 配置 ==================
 def find_system_chrome():
     """自动检测系统 Chrome/Chromium 可执行路径"""
@@ -117,7 +121,6 @@ try:
 except Exception as e:
     print(f"⚠️ Mermaid 初始化失败: {e}")
     print("⚠️ 图表将显示为代码块，请安装 Chrome 和 mermaid-cli")
-    extensions.discard('sphinxcontrib.mermaid')
 
 # ================= CHM特化配置 =================
 if is_chm_build: