diff --git a/src/api.ts b/src/api.ts
index cefc5b5..d3725eb 100644
--- a/src/api.ts
+++ b/src/api.ts
@@ -303,12 +303,41 @@ export class DiscourseAPI {
                 
                 if (data && data.tags) {
                     const canCreateTags = await this.checkCanCreateTags();
+                    
+                    // 处理所有标签（包括tag_groups中的标签）
+                    const allTags = new Map<string, { name: string; count: number }>();
+                    
+                    // 添加普通标签
                     data.tags.forEach((tag: any) => {
-                        tags.push({
+                        allTags.set(tag.name, { name: tag.name, count: tag.count || 0 });
+                    });
+                    
+                    // 添加tag_groups中的标签
+                    if (data.extras && data.extras.tag_groups) {
+                        data.extras.tag_groups.forEach((group: any) => {
+                            if (group.tags) {
+                                group.tags.forEach((tag: any) => {
+                                    // 如果标签已存在，取较大的count值
+                                    const existing = allTags.get(tag.name);
+                                    if (existing) {
+                                        existing.count = Math.max(existing.count, tag.count || 0);
+                                    } else {
+                                        allTags.set(tag.name, { name: tag.name, count: tag.count || 0 });
+                                    }
+                                });
+                            }
+                        });
+                    }
+                    
+                    // 按count数量排序，转换为最终格式
+                    const sortedTags = Array.from(allTags.values())
+                        .sort((a, b) => b.count - a.count)
+                        .map(tag => ({
                             name: tag.name,
                             canCreate: canCreateTags
-                        });
-                    });
+                        }));
+                    
+                    tags.push(...sortedTags);
                 }
                 
                 return tags;
diff --git a/src/ui.ts b/src/ui.ts
index 95a2706..485f1f3 100644
--- a/src/ui.ts
+++ b/src/ui.ts
@@ -82,6 +82,7 @@ export class SelectCategoryModal extends Modal {
                 removeBtn.onclick = () => {
                     selectedTags.delete(tag);
                     updateSelectedTags();
+                    showDefaultTags(); // 重新显示网格，让移除的标签重新出现
                 };
             });
         };
@@ -101,18 +102,47 @@ export class SelectCategoryModal extends Modal {
         // 创建标签建议容器
         const tagSuggestions = tagInputContainer.createEl('div', { cls: 'tag-suggestions' });
         
+        // 创建默认标签网格容器
+        const defaultTagsGrid = tagInputContainer.createEl('div', { cls: 'default-tags-grid' });
+        
+        // 显示默认标签网格
+        const showDefaultTags = () => {
+            defaultTagsGrid.empty();
+            const availableTags = this.tags.filter(tag => !selectedTags.has(tag.name)).slice(0, 20);
+            
+            if (availableTags.length > 0) {
+                availableTags.forEach(tag => {
+                    const tagEl = defaultTagsGrid.createEl('span', {
+                        cls: 'grid-tag',
+                        text: tag.name
+                    });
+                    tagEl.onclick = () => {
+                        selectedTags.add(tag.name);
+                        updateSelectedTags();
+                        showDefaultTags(); // 重新显示网格，移除已选标签
+                    };
+                });
+            }
+        };
+        
+        // 初始化显示默认标签网格
+        showDefaultTags();
+        
         // 处理输入事件，显示匹配的标签
         tagInput.oninput = () => {
             const value = tagInput.value.toLowerCase();
-            tagSuggestions.empty();
             
             if (value) {
+                // 有输入时隐藏默认网格，显示搜索结果
+                defaultTagsGrid.style.display = 'none';
+                tagSuggestions.empty();
+                
                 const matches = this.tags
                     .filter(tag => 
                         tag.name.toLowerCase().includes(value) && 
                         !selectedTags.has(tag.name)
                     )
-                    .slice(0, 10);
+                    .slice(0, 20); // 搜索结果显示更多
                 
                 if (matches.length > 0) {
                     // 获取输入框位置和宽度
@@ -126,6 +156,7 @@ export class SelectCategoryModal extends Modal {
                     tagSuggestions.style.top = `${inputRect.bottom + 4}px`;
                     tagSuggestions.style.left = `${inputRect.left}px`;
                     tagSuggestions.style.width = `${Math.min(inputRect.width, maxWidth)}px`;
+                    tagSuggestions.style.display = 'block';
                     
                     matches.forEach(tag => {
                         const suggestion = tagSuggestions.createEl('div', {
@@ -135,11 +166,20 @@ export class SelectCategoryModal extends Modal {
                         suggestion.onclick = () => {
                             selectedTags.add(tag.name);
                             tagInput.value = '';
-                            tagSuggestions.empty();
+                            tagSuggestions.style.display = 'none';
+                            defaultTagsGrid.style.display = 'grid';
                             updateSelectedTags();
+                            showDefaultTags();
                         };
                     });
+                } else {
+                    tagSuggestions.style.display = 'none';
                 }
+            } else {
+                // 无输入时显示默认网格，隐藏搜索结果
+                tagSuggestions.style.display = 'none';
+                defaultTagsGrid.style.display = 'grid';
+                showDefaultTags();
             }
         };
         
@@ -153,16 +193,19 @@ export class SelectCategoryModal extends Modal {
                     if (existingTag) {
                         selectedTags.add(existingTag.name);
                         updateSelectedTags();
+                        showDefaultTags();
                     } else if (this.canCreateTags) {
                         selectedTags.add(value);
                         updateSelectedTags();
+                        showDefaultTags();
                     } else {
                         // 显示权限提示
                         new Notice(t('PERMISSION_ERROR'), 3000);
                     }
                 }
                 tagInput.value = '';
-                tagSuggestions.empty();
+                tagSuggestions.style.display = 'none';
+                defaultTagsGrid.style.display = 'grid';
             }
         };
         
@@ -170,7 +213,8 @@ export class SelectCategoryModal extends Modal {
         tagInput.onblur = () => {
             // 延迟隐藏，以便可以点击建议
             setTimeout(() => {
-                tagSuggestions.empty();
+                tagSuggestions.style.display = 'none';
+                defaultTagsGrid.style.display = 'grid';
             }, 200);
         };
         
diff --git a/styles.css b/styles.css
index 0f564ff..d69fcde 100644
--- a/styles.css
+++ b/styles.css
@@ -199,42 +199,91 @@ If your plugin does not need CSS, delete this file.
 .discourse-sync-modal .tag {
   display: inline-flex;
   align-items: center;
-  gap: 4px;
-  padding: 4px 8px;
   background-color: var(--interactive-accent);
   color: var(--text-on-accent);
+  padding: 4px 8px;
   border-radius: var(--radius-s);
   font-size: 12px;
   font-weight: 500;
+  cursor: pointer;
   transition: all 0.2s ease;
-  border: 1px solid var(--interactive-accent);
+  max-width: 200px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
 }
 
 .discourse-sync-modal .tag:hover {
   background-color: var(--interactive-accent-hover);
-  border-color: var(--interactive-accent-hover);
+  transform: translateY(-1px);
+  box-shadow: var(--shadow-s);
 }
 
 .discourse-sync-modal .remove-tag {
+  margin-left: 6px;
   cursor: pointer;
+  font-weight: bold;
   font-size: 14px;
-  width: 16px;
-  height: 16px;
+  line-height: 1;
+  opacity: 0.8;
+  transition: opacity 0.2s ease;
   display: inline-flex;
   align-items: center;
   justify-content: center;
+  width: 16px;
+  height: 16px;
   border-radius: 50%;
-  background-color: var(--background-modifier-hover);
-  margin-left: 4px;
-  transition: all 0.2s ease;
-  opacity: 0.7;
+  background-color: rgba(255, 255, 255, 0.2);
 }
 
 .discourse-sync-modal .remove-tag:hover {
-  background-color: var(--background-modifier-error);
-  color: var(--text-on-accent);
   opacity: 1;
-  transform: scale(1.1);
+  background-color: rgba(255, 255, 255, 0.3);
+}
+
+/* 默认标签网格样式 */
+.discourse-sync-modal .default-tags-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
+  gap: 6px;
+  margin-top: 8px;
+  padding: 8px;
+  background-color: var(--background-secondary);
+  border-radius: var(--radius-s);
+  border: 1px solid var(--background-modifier-border);
+}
+
+.discourse-sync-modal .grid-tag {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  background-color: var(--background-primary);
+  color: var(--text-normal);
+  padding: 6px 8px;
+  border-radius: var(--radius-s);
+  font-size: 11px;
+  font-weight: 500;
+  cursor: pointer;
+  transition: all 0.2s ease;
+  border: 1px solid var(--background-modifier-border);
+  text-align: center;
+  min-height: 28px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.discourse-sync-modal .grid-tag:hover {
+  background-color: var(--interactive-accent);
+  color: var(--text-on-accent);
+  border-color: var(--interactive-accent);
+  transform: translateY(-1px);
+  box-shadow: var(--shadow-s);
+}
+
+.discourse-sync-modal .grid-tag:active {
+  transform: translateY(0);
+  box-shadow: var(--shadow-xs);
 }
 
 .discourse-sync-modal input[type="text"] {