diff --git a/android-app/android/app/src/main/java/com/woer/smartscale/MainActivity.java b/android-app/android/app/src/main/java/com/woer/smartscale/MainActivity.java
index 3009db9..a8c5e5e 100644
--- a/android-app/android/app/src/main/java/com/woer/smartscale/MainActivity.java
+++ b/android-app/android/app/src/main/java/com/woer/smartscale/MainActivity.java
@@ -43,6 +43,9 @@ public class MainActivity extends Activity {
         webView.setBackgroundColor(Color.rgb(248, 250, 248));
         webView.setWebViewClient(new WebViewClient());
         webView.setWebChromeClient(new WebChromeClient());
+        // 工业终端只响应点击操作，禁止长按选择文字、弹出菜单及震动反馈。
+        webView.setLongClickable(false);
+        webView.setHapticFeedbackEnabled(false);
 
         // 开启应用运行、接口访问和本地配置所需的 WebView 能力。
         WebSettings settings = webView.getSettings();
diff --git a/app/globals.css b/app/globals.css
index faa88b0..eb5c24d 100644
--- a/app/globals.css
+++ b/app/globals.css
@@ -11,9 +11,16 @@
   --cream: #f2f4ee;
 }
 
-* { box-sizing: border-box; }
+* {
+  box-sizing: border-box;
+  /* 禁止所有页面长按选择文字及弹出系统复制菜单。 */
+  -webkit-touch-callout: none;
+  -webkit-user-select: none;
+  user-select: none;
+}
 html { background: #dfe8e2; }
 body { margin: 0; color: var(--ink); font-family: Arial, "PingFang SC", "Microsoft YaHei", sans-serif; }
+img, a { -webkit-user-drag: none; }
 button, input { font: inherit; }
 button { cursor: pointer; }
 button:disabled { cursor: not-allowed; opacity: .55; }
diff --git a/tests/rendered-html.test.mjs b/tests/rendered-html.test.mjs
index e095e93..840bb65 100644
--- a/tests/rendered-html.test.mjs
+++ b/tests/rendered-html.test.mjs
@@ -51,3 +51,22 @@ test("正式代码不包含历史人员、机台或重量模拟数据", async ()
   assert.match(page, /evaluateStability\(stableSamples\.current\)/);
   assert.match(utilities, /返回值统一为千克/);
 });
+
+test("网页和 Android 原生层均禁用长按功能", async () => {
+  const [css, androidActivity] = await Promise.all([
+    readFile(new URL("../app/globals.css", import.meta.url), "utf8"),
+    readFile(
+      new URL(
+        "../android-app/android/app/src/main/java/com/woer/smartscale/MainActivity.java",
+        import.meta.url,
+      ),
+      "utf8",
+    ),
+  ]);
+
+  assert.match(css, /-webkit-touch-callout:\s*none/);
+  assert.match(css, /-webkit-user-select:\s*none/);
+  assert.match(css, /user-select:\s*none/);
+  assert.match(androidActivity, /webView\.setLongClickable\(false\)/);
+  assert.match(androidActivity, /webView\.setHapticFeedbackEnabled\(false\)/);
+});