diff --git a/assets/img/ad.png b/assets/img/ad.png
deleted file mode 100644
index 0a967ed..0000000
Binary files a/assets/img/ad.png and /dev/null differ
diff --git a/inc/theme-options.php b/inc/theme-options.php
index d9de9d0..f4e2db6 100644
--- a/inc/theme-options.php
+++ b/inc/theme-options.php
@@ -1006,75 +1006,81 @@ CSF::createSection($prefix, array(
     'icon' => 'fas fa-arrow-right',
     'fields' => array(
         array(
-            'id' => 's_singletop_fieldset',
-            'type' => 'fieldset',
+            'id' => 'single_ad_top_group',
+            'type' => 'group',
+            'title' => '文章顶部广告',
+            'subtitle' => '点击添加广告，最多添加 3 个顶部广告',
+            'min' => 1,
+            'max' => 3,
             'fields' => array(
                 array(
-                    'type' => 'subheading',
-                    'content' => __('文章顶部广告', 'kratos'),
+                    'id' => 'ad_id',
+                    'type' => 'text',
+                    'title' =>  __('唯一标识', 'kratos'),
+                    'subtitle' =>  __('仅用于识别广告内容，可以作为备注使用', 'kratos'),
                 ),
                 array(
-                    'id' => 's_singletop',
-                    'type' => 'switcher',
-                    'title' => __('功能开关', 'kratos'),
-                    'subtitle' => __('开启/关闭文章顶部广告', 'kratos'),
-                    'text_on' => __('开启', 'kratos'),
-                    'text_off' => __('关闭', 'kratos'),
-                ),
-                array(
-                    'id' => 's_singletop_img',
+                    'id' => 'ad_img',
                     'type' => 'upload',
-                    'title' =>  __('广告图片', 'kratos'),
+                    'title' => __('轮播图片', 'kratos'),
+                    'subtitle' =>  __('可以直接填写图片链接，也可以上传图片', 'kratos'),
                     'library' => 'image',
                     'preview' => true,
-                    'subtitle' => __('仅当开启此功能时生效', 'kratos'),
                 ),
                 array(
-                    'id' => 's_singletop_url',
+                    'id' => 'ad_url',
                     'type' => 'text',
-                    'title' => __('广告链接', 'kratos'),
-                    'subtitle' => __('如果不填写，将只显示图片', 'kratos'),
+                    'title' =>  __('网址链接', 'kratos'),
+                    'subtitle' =>  __('需要填写完整的链接地址，包含协议头', 'kratos'),
+                ),
+                array(
+                    'id' => 'ad_switcher',
+                    'type' => 'switcher',
+                    'title' => __('功能开关', 'kratos'),
+                    'subtitle' => __('开启/关闭此条广告', 'kratos'),
+                    'text_on' => __('开启', 'kratos'),
+                    'text_off' => __('关闭', 'kratos'),
+                    'default' => true
                 ),
-            ),
-            'default' => array(
-                's_singletop' => false,
-                's_singletop_img' => get_template_directory_uri() . '/assets/img/ad.png',
             ),
         ),
         array(
-            'id' => 's_singledown_fieldset',
-            'type' => 'fieldset',
+            'id' => 'single_ad_bottom_group',
+            'type' => 'group',
+            'title' => '文章底部广告',
+            'subtitle' => '点击添加广告，最多添加 3 个顶部广告',
+            'min' => 1,
+            'max' => 3,
             'fields' => array(
                 array(
-                    'type' => 'subheading',
-                    'content' => __('文章底部广告', 'kratos'),
+                    'id' => 'ad_id',
+                    'type' => 'text',
+                    'title' =>  __('唯一标识', 'kratos'),
+                    'subtitle' =>  __('仅用于识别广告内容，可以作为备注使用', 'kratos'),
                 ),
                 array(
-                    'id' => 's_singledown',
-                    'type' => 'switcher',
-                    'title' => __('功能开关', 'kratos'),
-                    'subtitle' => __('开启/关闭文章底部广告', 'kratos'),
-                    'text_on' => __('开启', 'kratos'),
-                    'text_off' => __('关闭', 'kratos'),
-                ),
-                array(
-                    'id' => 's_singledown_img',
+                    'id' => 'ad_img',
                     'type' => 'upload',
-                    'title' =>  __('广告图片', 'kratos'),
+                    'title' => __('轮播图片', 'kratos'),
+                    'subtitle' =>  __('可以直接填写图片链接，也可以上传图片', 'kratos'),
                     'library' => 'image',
                     'preview' => true,
-                    'subtitle' => __('仅当开启此功能时生效', 'kratos'),
                 ),
                 array(
-                    'id' => 's_singledown_url',
+                    'id' => 'ad_url',
                     'type' => 'text',
-                    'title' => __('广告链接', 'kratos'),
-                    'subtitle' => __('如果不填写，将只显示图片', 'kratos'),
+                    'title' =>  __('网址链接', 'kratos'),
+                    'subtitle' =>  __('需要填写完整的链接地址，包含协议头', 'kratos'),
+                ),
+                array(
+                    'id' => 'ad_switcher',
+                    'type' => 'switcher',
+                    'title' => __('功能开关', 'kratos'),
+                    'subtitle' => __('开启/关闭此条广告', 'kratos'),
+                    'text_on' => __('开启', 'kratos'),
+                    'text_off' => __('关闭', 'kratos'),
+                    'default' => true
                 ),
-            ),
-            'default' => array(
-                's_singledown' => false,
-                's_singledown_img' => get_template_directory_uri() . '/assets/img/ad.png',
             ),
         ),
     ),
diff --git a/single.php b/single.php
index 1c13b92..92cf335 100644
--- a/single.php
+++ b/single.php
@@ -74,13 +74,11 @@ $select_col = $col_array[kratos_option('g_article_widgets', 'two_side')];
                         </div>
                         <div class="content" id="lightgallery">
                             <?php
-                            if (kratos_option('s_singletop', false)) {
-                                if (kratos_option('s_singletop_url')) {
-                                    echo '<a href="' . kratos_option('s_singletop_url') . '" target="_blank" rel="noreferrer">';
-                                }
-                                echo '<img src="' . kratos_option('s_singletop_img') . '">';
-                                if (kratos_option('s_singletop_url')) {
-                                    echo '</a>';
+                            if (!empty(kratos_option('single_ad_top_group'))) {
+                                foreach (kratos_option('single_ad_top_group') as $group_item) {
+                                    if ($group_item['ad_switcher']) {
+                                        echo '<div style="margin-bottom:5px"><a href="' . $group_item['ad_url'] . '" target="_blank" rel="noreferrer"><img src="' . $group_item['ad_img'] . '"></a></div>';
+                                    }
                                 }
                             }
                             the_content();
@@ -111,13 +109,11 @@ $select_col = $col_array[kratos_option('g_article_widgets', 'two_side')];
                                     'nextpagelink' => __('<span>下一页</span>', 'kratos')
                                 )
                             );
-                            if (kratos_option('s_singledown', false)) {
-                                if (kratos_option('s_singledown_url')) {
-                                    echo '<a href="' . kratos_option('s_singledown_url') . '" target="_blank" rel="noreferrer">';
-                                }
-                                echo '<img src="' . kratos_option('s_singledown_img') . '">';
-                                if (kratos_option('s_singledown_url')) {
-                                    echo '</a>';
+                            if (!empty(kratos_option('single_ad_bottom_group'))) {
+                                foreach (kratos_option('single_ad_bottom_group') as $group_item) {
+                                    if ($group_item['ad_switcher']) {
+                                        echo '<div style="margin-bottom:5px"><a href="' . $group_item['ad_url'] . '" target="_blank" rel="noreferrer"><img src="' . $group_item['ad_img'] . '"></a></div>';
+                                    }
                                 }
                             }
                             ?>