diff --git a/application/views/mobile_first/ch-pc.php b/application/views/mobile_first/ch-pc.php
index 339183ba..f2cf3699 100644
--- a/application/views/mobile_first/ch-pc.php
+++ b/application/views/mobile_first/ch-pc.php
@@ -89,7 +89,8 @@
                     <a href="/contactus/?product_code=cht-home-111" id="contact_us_2021">Contact us</a>
                 </div>
             </div>
-        <nav class="pc_navigation">
+            </header>
+        <nav class="pc_navigation" id="pc_nav">
             <ul class="pctopnavi">
                 <li class="dropdown"><a href="/tour/" class="p_topnavilink" id="china_tours_2021">China Tours</a>
                     <div class="chinatourspc dropdown-content">
@@ -301,7 +302,6 @@
                
             </ul>
         </nav>
-    </header>
     <!--@HEAD_1@-->
     <div class="main_content">
         <div id="main_content_pc">
@@ -556,8 +556,7 @@
 
                 <p style="margin-top: 20px; padding-bottom: 0;">
                     China Highlights International Travel Service Co., LTD<br>
-                    <strong>Address:</strong> Building 6, Chuangyi Business
-                    Park, 70 Qilidian Road, Guilin, Guangxi, 541004, China
+                    <strong>Address:</strong> 8/F, Building 3B, Sanjin Plaza, No. 1 Jinxing Road, Guilin, Guangxi 541004, China
                 </p>
             </div>
         </div>
@@ -586,14 +585,14 @@
                 var currentScrollPos = w.pageYOffset;
                 if (Math.abs(currentScrollPos - prevScrollpos) > 5) { // 滚动阈值
                     if (prevScrollpos > currentScrollPos) {
-                        navbar.style.top = '0';
+                        navbar.style.transform = 'translateY(0)';
                     } else {
-                        navbar.style.top = '-100px';
+                        navbar.style.transform = 'translateY(-150px)';
                     }
                     prevScrollpos = currentScrollPos;
                 }
             }, 25) // 防止快速滚动时频繁触发
-        })(window, document, 'header');
+        })(window, document, 'pc_nav');
     </script>
 
     <!--@PRODUCT-JS@-->
@@ -683,7 +682,7 @@
         "name": "China Highlights",
         "address": {
             "@type": "PostalAddress",
-            "streetAddress": "Building 6, Chuangyi Business Park, 70 Qilidian Road",
+            "streetAddress": "8/F, Building 3B, Sanjin Plaza, No. 1 Jinxing Road, Guilin, Guangxi 541004, China",
             "addressLocality": "Guilin",
             "addressRegion": "Guangxi",
             "postalCode": "541004",
diff --git a/application/views/mobile_first/ch.php b/application/views/mobile_first/ch.php
index ac198882..a938d7e1 100644
--- a/application/views/mobile_first/ch.php
+++ b/application/views/mobile_first/ch.php
@@ -570,8 +570,7 @@
       </div>
       <div class="featureon">
         China Highlights International Travel Service Co., LTD<br>
-        <strong>Address:</strong> Building 6, Chuangyi Business Park, 70 Qilidian Road, Guilin, Guangxi,
-        541004, China
+        <strong>Address:</strong> 8/F, Building 3B, Sanjin Plaza, No. 1 Jinxing Road, Guilin, Guangxi 541004, China
       </div>
     </div>
     </div>
@@ -677,7 +676,7 @@
     "name": "China Highlights",
     "address": {
       "@type": "PostalAddress",
-      "streetAddress": "Building 6, Chuangyi Business Park, 70 Qilidian Road",
+      "streetAddress": "8/F, Building 3B, Sanjin Plaza, No. 1 Jinxing Road, Guilin, Guangxi 541004, China",
       "addressLocality": "Guilin",
       "addressRegion": "Guangxi",
       "postalCode": "541004",