no message

lib/pages/discover/visitor_list_page.dart

@@ -20,8 +20,9 @@ class VisitorListPage extends StatelessWidget {
       appBar: AppBar(
         title: Obx(() => Text(
           '最近访客 (${visitorController.todayVisitorsCount})',
-          style: TextStyle(fontSize: 16),
+          style: TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
         )),
+        centerTitle: true,
         backgroundColor: Colors.white,
         actions: [
           // 更多操作

lib/pages/mine/auth_center_page.dart

@@ -17,14 +17,8 @@ class AuthCenterPage extends StatelessWidget {
     return Scaffold(
         backgroundColor: Color(0xffF5F5F5),
         appBar: AppBar(
-          title: Text('认证中心', style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold)),
+          title: Text('认证中心', style: TextStyle(fontSize: 16, fontWeight: FontWeight.bold)),
           centerTitle: true,
-          leading: IconButton(
-            icon: Icon(Icons.arrow_back_ios, size: 24, color: Colors.grey,),
-            onPressed: () {
-              Get.back();
-            },
-          ),
         ),
         body: Obx(() {
           if (controller.isLoading.value) {

lib/pages/mine/real_name_page.dart

@@ -15,14 +15,8 @@ class RealNamePage extends StatelessWidget {
     return Scaffold(
         backgroundColor: Color(0xffFFFFFF),
         appBar: AppBar(
-          title: Text('实名认证', style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold)),
+          title: Text('实名认证', style: TextStyle(fontSize: 16, fontWeight: FontWeight.bold)),
           centerTitle: true,
-          leading: IconButton(
-            icon: Icon(Icons.arrow_back_ios, size: 24, color: Colors.grey,),
-            onPressed: () {
-              Get.back();
-            },
-          ),
         ),
         body: Column(
           children: [