diff --git a/application/views/mobile_first/ch-train-detail.php b/application/views/mobile_first/ch-train-detail.php
index 44f64d72..873a0914 100644
--- a/application/views/mobile_first/ch-train-detail.php
+++ b/application/views/mobile_first/ch-train-detail.php
@@ -50,20 +50,12 @@
   <script defer type="text/javascript" src="https://data.chinahighlights.com/js/train/StationInfo.js"></script>
   
 </div>
-<!-- Google Code for Remarketing tag -->
-<!-- Remarketing tags may not be associated with personally identifiable information or placed on pages related to sensitive categories. For instructions on adding this tag and more information on the above requirements, read the setup guide: google.com/ads/remarketingsetup -->
-<script type="text/javascript">
-/* <![CDATA[ */
-var google_conversion_id = 996341496;
-var google_conversion_label = "ugA2CIi7_wMQ-O2L2wM";
-var google_custom_params = window.google_tag_params;
-var google_remarketing_only = true;
-/* ]]> */
-</script>
-<script defer type="text/javascript" src="//www.googleadservices.com/pagead/conversion.js">
-</script>
-<noscript>
-<div style="display:inline;">
-<img height="1" width="1" style="border-style:none;" alt="" src="//googleads.g.doubleclick.net/pagead/viewthroughconversion/996341496/?value=0&amp;label=ugA2CIi7_wMQ-O2L2wM&amp;guid=ON&amp;script=0"/>
-</div>
-</noscript>
\ No newline at end of file
+<!-- Global site tag (gtag.js) - Google Analytics -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=UA-31694-20"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'UA-31694-20');
+</script>
\ No newline at end of file