diff --git a/app/views/admins/auth_schools/shared/_new_modal.html.erb b/app/views/admins/auth_schools/shared/_new_modal.html.erb
index 3bec99303..3ea4395ff 100644
--- a/app/views/admins/auth_schools/shared/_new_modal.html.erb
+++ b/app/views/admins/auth_schools/shared/_new_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade auth-schools-new-add" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title">新增认证单位</h5>
diff --git a/app/views/admins/auth_schools/shared/_user_add_modal.html.erb b/app/views/admins/auth_schools/shared/_user_add_modal.html.erb
index 39dd7d1b7..3491935c0 100644
--- a/app/views/admins/auth_schools/shared/_user_add_modal.html.erb
+++ b/app/views/admins/auth_schools/shared/_user_add_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade auth-schools-user-add" tabindex="-1" role="dialog" aria-hidden="true">
-    <div class="modal-dialog modal-dialog-centered" role="document">
+    <div class="modal-dialog modal-dialog-scrollable" role="document">
         <div class="modal-content">
             <div class="modal-header">
               <h5 class="modal-title">添加管理员</h5>
diff --git a/app/views/admins/carousels/shared/_add_carousel_modal.html.erb b/app/views/admins/carousels/shared/_add_carousel_modal.html.erb
index 5dd7bf475..5dc5e8445 100644
--- a/app/views/admins/carousels/shared/_add_carousel_modal.html.erb
+++ b/app/views/admins/carousels/shared/_add_carousel_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade admin-add-carousel-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title">添加轮播图</h5>
diff --git a/app/views/admins/cooperatives/shared/_add_cooperative_modal.html.erb b/app/views/admins/cooperatives/shared/_add_cooperative_modal.html.erb
index e5b6f0cea..cce5eb498 100644
--- a/app/views/admins/cooperatives/shared/_add_cooperative_modal.html.erb
+++ b/app/views/admins/cooperatives/shared/_add_cooperative_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade admin-add-cooperative-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title">添加合作伙伴</h5>
diff --git a/app/views/admins/ec_templates/shared/_templates_add_modal.html.erb b/app/views/admins/ec_templates/shared/_templates_add_modal.html.erb
index c27767655..93cce07e1 100644
--- a/app/views/admins/ec_templates/shared/_templates_add_modal.html.erb
+++ b/app/views/admins/ec_templates/shared/_templates_add_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade ec-templates-new-add" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title"><span class="template_add_title">新建</span>导入模版</h5>
diff --git a/app/views/admins/edu_settings/_form.html.erb b/app/views/admins/edu_settings/_form.html.erb
index cce930f2a..5e69056ab 100644
--- a/app/views/admins/edu_settings/_form.html.erb
+++ b/app/views/admins/edu_settings/_form.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade edu_setting-change-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title"><%= type == "create" ? "新增" : "编辑" %></h5>
diff --git a/app/views/admins/faqs/_form_modal.html.erb b/app/views/admins/faqs/_form_modal.html.erb
index 45ceb901c..13a11bb57 100644
--- a/app/views/admins/faqs/_form_modal.html.erb
+++ b/app/views/admins/faqs/_form_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade faq-change-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title"><%= type == "create" ? "新增" : "编辑" %></h5>
diff --git a/app/views/admins/graduation_standards/shared/_add_standard_modal.html.erb b/app/views/admins/graduation_standards/shared/_add_standard_modal.html.erb
index 9b339bf56..801549706 100644
--- a/app/views/admins/graduation_standards/shared/_add_standard_modal.html.erb
+++ b/app/views/admins/graduation_standards/shared/_add_standard_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade graduation-standards-add" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title"><span id="graduation-modal-type">添加</span>通用标准</h5>
diff --git a/app/views/admins/item_authentications/shared/_item_show_modal.html.erb b/app/views/admins/item_authentications/shared/_item_show_modal.html.erb
index 9a1c891fe..99cbf018a 100644
--- a/app/views/admins/item_authentications/shared/_item_show_modal.html.erb
+++ b/app/views/admins/item_authentications/shared/_item_show_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade admin-item-show-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title">试题信息</h5>
diff --git a/app/views/admins/laboratories/shared/_add_laboratory_user_modal.html.erb b/app/views/admins/laboratories/shared/_add_laboratory_user_modal.html.erb
index a13565cd6..ef53ebde2 100644
--- a/app/views/admins/laboratories/shared/_add_laboratory_user_modal.html.erb
+++ b/app/views/admins/laboratories/shared/_add_laboratory_user_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade admin-add-laboratory-user-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title">添加管理员</h5>
diff --git a/app/views/admins/laboratories/shared/_create_laboratory_modal.html.erb b/app/views/admins/laboratories/shared/_create_laboratory_modal.html.erb
index 0a77477d3..d44b75a5a 100644
--- a/app/views/admins/laboratories/shared/_create_laboratory_modal.html.erb
+++ b/app/views/admins/laboratories/shared/_create_laboratory_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade admin-create-laboratory-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title">新建云上实验室</h5>
diff --git a/app/views/admins/mirror_repositories/shared/_choose_mirror_modal.html.erb b/app/views/admins/mirror_repositories/shared/_choose_mirror_modal.html.erb
index 99c846c70..921da32ea 100644
--- a/app/views/admins/mirror_repositories/shared/_choose_mirror_modal.html.erb
+++ b/app/views/admins/mirror_repositories/shared/_choose_mirror_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade admin-choose-mirror-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title">更新镜像仓库</h5>
diff --git a/app/views/admins/mirror_repositories/shared/_replace_mirror_modal.html.erb b/app/views/admins/mirror_repositories/shared/_replace_mirror_modal.html.erb
index f2b2d20c8..54fbe5a56 100644
--- a/app/views/admins/mirror_repositories/shared/_replace_mirror_modal.html.erb
+++ b/app/views/admins/mirror_repositories/shared/_replace_mirror_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade admin-replace-mirror-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title">镜像替换</h5>
diff --git a/app/views/admins/phenglei_users/shared/_create_form_modal.html.erb b/app/views/admins/phenglei_users/shared/_create_form_modal.html.erb
index 761982600..40ff942a1 100644
--- a/app/views/admins/phenglei_users/shared/_create_form_modal.html.erb
+++ b/app/views/admins/phenglei_users/shared/_create_form_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade phenglei-user-create-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title">新增</h5>
diff --git a/app/views/admins/platform_communicates/_form_modal.html.erb b/app/views/admins/platform_communicates/_form_modal.html.erb
index e26257712..ee6ecfa7d 100644
--- a/app/views/admins/platform_communicates/_form_modal.html.erb
+++ b/app/views/admins/platform_communicates/_form_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade platform-communicate-change-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title"><%= type == "create" ? "新增" : "编辑" %></h5>
diff --git a/app/views/admins/platform_people/_form_modal.html.erb b/app/views/admins/platform_people/_form_modal.html.erb
index e2c23edaf..249d97f26 100644
--- a/app/views/admins/platform_people/_form_modal.html.erb
+++ b/app/views/admins/platform_people/_form_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade platform-person-change-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title"><%= type == "create" ? "新增" : "编辑" %></h5>
diff --git a/app/views/admins/project_categories/_form_modal.html.erb b/app/views/admins/project_categories/_form_modal.html.erb
index fc58d3345..c323b765a 100644
--- a/app/views/admins/project_categories/_form_modal.html.erb
+++ b/app/views/admins/project_categories/_form_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade project-category-change-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title"><%= type == "create" ? "新增" : "编辑" %></h5>
diff --git a/app/views/admins/project_languages/_form_modal.html.erb b/app/views/admins/project_languages/_form_modal.html.erb
index 79ceae969..689a4c2f0 100644
--- a/app/views/admins/project_languages/_form_modal.html.erb
+++ b/app/views/admins/project_languages/_form_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade project-language-change-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title"><%= type == "create" ? "新增" : "编辑" %></h5>
diff --git a/app/views/admins/projects/shared/_form_modal.html.erb b/app/views/admins/projects/shared/_form_modal.html.erb
index b9796756a..d7d6de422 100644
--- a/app/views/admins/projects/shared/_form_modal.html.erb
+++ b/app/views/admins/projects/shared/_form_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade project-change-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title"><%= type == "create" ? "新增" : "编辑" %></h5>
diff --git a/app/views/admins/reversed_keywords/_form_modal.html.erb b/app/views/admins/reversed_keywords/_form_modal.html.erb
index 7dd2f2ba4..084fbacd8 100644
--- a/app/views/admins/reversed_keywords/_form_modal.html.erb
+++ b/app/views/admins/reversed_keywords/_form_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade reversed-keyword-change-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title"><%= type == "create" ? "新增" : "编辑" %></h5>
diff --git a/app/views/admins/shared/_admin_common_refuse_modal.html.erb b/app/views/admins/shared/_admin_common_refuse_modal.html.erb
index 10baaef64..00337bfd8 100644
--- a/app/views/admins/shared/_admin_common_refuse_modal.html.erb
+++ b/app/views/admins/shared/_admin_common_refuse_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade admin-common-refuse-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title">拒绝原因</h5>
diff --git a/app/views/admins/shared/modal/_message_modal.html.erb b/app/views/admins/shared/modal/_message_modal.html.erb
index 17c02ea14..2fc4d2dfc 100644
--- a/app/views/admins/shared/modal/_message_modal.html.erb
+++ b/app/views/admins/shared/modal/_message_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade admin-message-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title">消息</h5>
diff --git a/app/views/admins/shared/modal/_select_school_modal.html.erb b/app/views/admins/shared/modal/_select_school_modal.html.erb
index 8d72b1751..2332d4256 100644
--- a/app/views/admins/shared/modal/_select_school_modal.html.erb
+++ b/app/views/admins/shared/modal/_select_school_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade admin-select-school-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title"><%= title %></h5>
diff --git a/app/views/admins/shared/modal/_upload_file_modal.html.erb b/app/views/admins/shared/modal/_upload_file_modal.html.erb
index c28110440..c2209b39e 100644
--- a/app/views/admins/shared/modal/_upload_file_modal.html.erb
+++ b/app/views/admins/shared/modal/_upload_file_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade admin-upload-file-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title"><%= title ||= '上传文件' %></h5>
diff --git a/app/views/admins/sites/_form.html.erb b/app/views/admins/sites/_form.html.erb
index 6a879d9d3..d1b2e3ec9 100644
--- a/app/views/admins/sites/_form.html.erb
+++ b/app/views/admins/sites/_form.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade site-change-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title"><%= type == "create" ? "新增" : "编辑" %></h5>
diff --git a/app/views/admins/system_notifications/_form_modal.html.erb b/app/views/admins/system_notifications/_form_modal.html.erb
index 658bbc9c0..f9b903b87 100644
--- a/app/views/admins/system_notifications/_form_modal.html.erb
+++ b/app/views/admins/system_notifications/_form_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade system-notification-change-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title"><%= type == "create" ? "新增" : "编辑" %></h5>
diff --git a/app/views/admins/users/shared/_import_user_modal.html.erb b/app/views/admins/users/shared/_import_user_modal.html.erb
index b0d3c9a77..0bca68910 100644
--- a/app/views/admins/users/shared/_import_user_modal.html.erb
+++ b/app/views/admins/users/shared/_import_user_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade admin-import-user-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title">导入用户</h5>
diff --git a/app/views/admins/users/shared/_reward_grade_modal.html.erb b/app/views/admins/users/shared/_reward_grade_modal.html.erb
index 2cf741906..ee8b52dee 100644
--- a/app/views/admins/users/shared/_reward_grade_modal.html.erb
+++ b/app/views/admins/users/shared/_reward_grade_modal.html.erb
@@ -1,5 +1,5 @@
 <div class="modal fade admin-users-reward-grade-modal" tabindex="-1" role="dialog" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered" role="document">
+  <div class="modal-dialog modal-dialog-scrollable" role="document">
     <div class="modal-content">
       <div class="modal-header">
         <h5 class="modal-title">奖励金币</h5>