diff --git a/frontend/src/components/chat/KanbanDetail.vue b/frontend/src/components/chat/KanbanDetail.vue
index ba2fca6..1a2881d 100644
--- a/frontend/src/components/chat/KanbanDetail.vue
+++ b/frontend/src/components/chat/KanbanDetail.vue
@@ -1,5 +1,6 @@
 <script setup lang="ts">
 import { ref } from 'vue'
+import { Trash2, Pencil } from 'lucide-vue-next'
 
 interface Task {
   id: string
@@ -24,6 +25,8 @@ const emit = defineEmits<{
 
 const activeTab = ref<'comments' | 'history'>('comments')
 const commentInput = ref('')
+const isEditingTitle = ref(false)
+const editingTitle = ref('')
 
 const mockTask: Task = {
   id: '1',
@@ -34,32 +37,138 @@ const mockTask: Task = {
   priority: '重要且紧急 (P1)',
   createdAt: '2024-03-21 14:49:35',
 }
+const description = ref('')
+
+const agents = [
+  { id: 'planner', name: '规划师', icon: '📋' },
+  { id: 'executor', name: '执行者', icon: '⚡' },
+  { id: 'knowledge', name: '知识管理员', icon: '🧠' },
+  { id: 'analyst', name: '分析师', icon: '🔍' },
+  { id: 'coder', name: '程序员', icon: '💻' },
+  { id: 'researcher', name: '研究员', icon: '🔬' },
+]
+
+const selectedAgent = ref(agents[0].id)
+
+const priorities = [
+  { id: 'urgent-important', name: '重要且紧急', color: '#f56565' },
+  { id: 'not-urgent-important', name: '重要不紧急', color: '#ecc94b' },
+  { id: 'urgent-not-important', name: '紧急不重要', color: '#42b9f5' },
+  { id: 'not-urgent-not-important', name: '不重要不紧急', color: '#97c950' },
+]
+
+const selectedPriority = ref('urgent-important')
+
+const taskStatuses = [
+  { id: 'pending', name: '未完成' },
+  { id: 'in_progress', name: '进行中' },
+  { id: 'completed', name: '已完成' },
+]
+
+const selectedStatus = ref('completed')
+
+interface SubTask {
+  id: number
+  title: string
+  completed: boolean
+  subAgent: string
+}
+
+const subtasks = ref<SubTask[]>([])
+let subtaskIdCounter = 0
+
+// Drag and drop state
+const draggedIndex = ref<number | null>(null)
+const dragOverIndex = ref<number | null>(null)
+
+function onDragStart(index: number) {
+  draggedIndex.value = index
+}
+
+function onDragOver(event: DragEvent, index: number) {
+  event.preventDefault()
+  dragOverIndex.value = index
+}
+
+function onDragLeave() {
+  dragOverIndex.value = null
+}
+
+function onDrop(event: DragEvent, targetIndex: number) {
+  event.preventDefault()
+  if (draggedIndex.value !== null && draggedIndex.value !== targetIndex) {
+    const item = subtasks.value.splice(draggedIndex.value, 1)[0]
+    subtasks.value.splice(targetIndex, 0, item)
+  }
+  draggedIndex.value = null
+  dragOverIndex.value = null
+}
+
+function onDragEnd() {
+  draggedIndex.value = null
+  dragOverIndex.value = null
+}
 
 function formatDate() {
   return new Date().toLocaleString('zh-CN')
 }
+
+function startEditTitle() {
+  editingTitle.value = mockTask.title
+  isEditingTitle.value = true
+}
+
+function saveTitle() {
+  if (editingTitle.value.trim()) {
+    mockTask.title = editingTitle.value.trim()
+  }
+  isEditingTitle.value = false
+}
+
+function addSubtask() {
+  subtasks.value.push({
+    id: ++subtaskIdCounter,
+    title: '',
+    completed: false,
+    subAgent: '',
+  })
+}
+
+function removeSubtask(index: number) {
+  subtasks.value.splice(index, 1)
+}
 </script>
 
 <template>
   <div class="kanban-detail-overlay" :class="{ visible }" @click.self="emit('close')">
     <div class="kanban-detail-panel">
-      <button class="detail-close" type="button" aria-label="Close detail" @click="emit('close')">
-        ×
-      </button>
-
       <div class="detail-header">
         <div class="task-title-section">
           <div class="task-title">
             <span class="check-icon">☑</span>
-            {{ mockTask.title }}
+            <input
+              v-if="isEditingTitle"
+              v-model="editingTitle"
+              class="title-input"
+              maxlength="20"
+              @blur="saveTitle"
+              @keyup.enter="saveTitle"
+              @keyup.escape="isEditingTitle = false"
+              autofocus
+            />
+            <span v-else class="title-text">{{ mockTask.title }}</span>
+            <button class="btn-edit-title" type="button" title="修改标题" @click="startEditTitle">
+              <Pencil :size="14" />
+            </button>
           </div>
           <div class="task-meta">
-            <span class="avatar">C</span>
-            {{ mockTask.assignee }} 创建于：{{ mockTask.createdAt }}
+            创建于：{{ mockTask.createdAt }}
           </div>
         </div>
-        <div class="status-badge" :style="{ background: quadrantColor + '20', color: quadrantColor }">
-          ✓
+        <div class="header-actions">
+          <button class="btn-delete-icon" type="button" title="删除任务">
+            <Trash2 :size="16" />
+          </button>
         </div>
       </div>
 
@@ -70,25 +179,40 @@ function formatDate() {
               <span class="icon">☞</span>
               描述
             </div>
-            <div class="description-box">
-              添加详细描述...
-            </div>
+            <textarea
+              v-model="description"
+              class="description-box"
+              placeholder="添加详细描述..."
+            ></textarea>
           </div>
 
           <div class="task-info-list">
             <div class="info-item">
               <span class="icon">☰</span>
-              负责人：<span class="avatar">C</span>{{ mockTask.assignname }}
+              主负责指挥官：
+              <select v-model="selectedAgent" class="agent-select">
+                <option v-for="agent in agents" :key="agent.id" :value="agent.id">
+                  {{ agent.icon }} {{ agent.name }}
+                </option>
+              </select>
             </div>
             <div class="info-item">
               <span class="icon">⚑</span>
-              优先级：<span class="priority-high">{{ mockTask.priority }}</span>
+              优先级：
+              <select v-model="selectedPriority" class="priority-select">
+                <option v-for="p in priorities" :key="p.id" :value="p.id">
+                  {{ p.name }}
+                </option>
+              </select>
             </div>
             <div class="info-item">
               <span class="icon">📅</span>
-              任务状态：<span :class="{ 'status-completed': mockTask.completed }">
-                {{ mockTask.completed ? '已完成' : '进行中' }}
-              </span>
+              任务状态：
+              <select v-model="selectedStatus" class="status-select">
+                <option v-for="s in taskStatuses" :key="s.id" :value="s.id">
+                  {{ s.name }}
+                </option>
+              </select>
             </div>
           </div>
 
@@ -98,9 +222,44 @@ function formatDate() {
                 <span class="icon">☑</span>
                 子任务
               </span>
-              <button class="btn-add-subtask" type="button">添加子任务</button>
+              <button class="btn-add-subtask" type="button" @click="addSubtask">添加子任务</button>
+            </div>
+            <div v-if="subtasks.length === 0" class="subtask-empty">暂无子任务</div>
+            <div v-else class="subtask-list">
+              <div
+                v-for="(subtask, index) in subtasks"
+                :key="subtask.id"
+                class="subtask-item"
+                :class="{ 'drag-over': dragOverIndex === index }"
+                draggable="true"
+                @dragstart="onDragStart(index)"
+                @dragover="onDragOver($event, index)"
+                @dragleave="onDragLeave"
+                @drop="onDrop($event, index)"
+                @dragend="onDragEnd"
+              >
+                <button class="subtask-drag" type="button" title="拖动排序">⋮⋮</button>
+                <input
+                  type="checkbox"
+                  v-model="subtask.completed"
+                  class="subtask-checkbox"
+                />
+                <input
+                  v-model="subtask.title"
+                  class="subtask-input"
+                  :class="{ completed: subtask.completed }"
+                  placeholder="输入子任务名称..."
+                  @keyup.enter="addSubtask"
+                />
+                <select v-model="subtask.subAgent" class="subtask-agent">
+                  <option value="">子指挥官</option>
+                  <option v-for="agent in agents" :key="agent.id" :value="agent.id">
+                    {{ agent.icon }} {{ agent.name }}
+                  </option>
+                </select>
+                <button class="subtask-delete" type="button" @click="removeSubtask(index)">×</button>
+              </div>
             </div>
-            <div class="subtask-empty">暂无子任务</div>
           </div>
 
           <div class="section">
@@ -120,41 +279,6 @@ function formatDate() {
             </div>
           </div>
         </div>
-
-        <div class="sidebar">
-          <button class="sidebar-btn" type="button">
-            <span class="icon">✂</span>
-            标记未完成
-          </button>
-          <button class="sidebar-btn" type="button">
-            <span class="icon">↻</span>
-            优先级
-          </button>
-          <button class="sidebar-btn" type="button">
-            <span class="icon">👤</span>
-            负责人
-          </button>
-          <button class="sidebar-btn" type="button">
-            <span class="icon">📆</span>
-            计划时间
-          </button>
-          <button class="sidebar-btn" type="button">
-            <span class="icon">📎</span>
-            添加附件
-          </button>
-          <button class="sidebar-btn" type="button">
-            <span class="icon">📧</span>
-            关注人
-          </button>
-          <button class="sidebar-btn" type="button">
-            <span class="icon">📁</span>
-            归档
-          </button>
-          <button class="sidebar-btn btn-delete" type="button">
-            <span class="icon">🗑</span>
-            删除
-          </button>
-        </div>
       </div>
     </div>
   </div>
@@ -200,23 +324,6 @@ function formatDate() {
   transform: scale(1);
 }
 
-.detail-close {
-  position: absolute;
-  top: 16px;
-  right: 20px;
-  font-size: 28px;
-  color: #ff4d4f;
-  background: none;
-  border: none;
-  cursor: pointer;
-  line-height: 1;
-  z-index: 10;
-}
-
-.detail-close:hover {
-  color: #ff7875;
-}
-
 .detail-header {
   display: flex;
   justify-content: space-between;
@@ -225,8 +332,38 @@ function formatDate() {
   border-bottom: 1px solid rgba(0, 243, 255, 0.1);
 }
 
+.header-actions {
+  display: flex;
+  align-items: center;
+  gap: 16px;
+}
+
+.btn-delete-icon {
+  width: 32px;
+  height: 32px;
+  border-radius: 8px;
+  border: 1px solid rgba(255, 77, 79, 0.3);
+  background: rgba(255, 77, 79, 0.08);
+  color: #ff4d4f;
+  cursor: pointer;
+  transition: all var(--transition-fast);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.btn-delete-icon:hover {
+  background: rgba(255, 77, 79, 0.2);
+  border-color: #ff4d4f;
+}
+
+.btn-delete-icon :deep(svg) {
+  stroke: currentColor;
+}
+
 .task-title-section {
   flex: 1;
+  min-width: 0;
 }
 
 .task-title {
@@ -234,13 +371,71 @@ function formatDate() {
   font-weight: 600;
   color: #e0f7ff;
   margin-bottom: 10px;
-  display: flex;
+  display: inline-flex;
   align-items: center;
   gap: 8px;
+  max-width: 100%;
 }
 
 .check-icon {
   color: #52c41a;
+  flex-shrink: 0;
+}
+
+.title-text {
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  max-width: 400px;
+}
+
+.title-input {
+  font-size: 22px;
+  font-weight: 600;
+  font-family: inherit;
+  color: #e0f7ff;
+  background: rgba(0, 243, 255, 0.08);
+  border: 1px solid rgba(0, 243, 255, 0.3);
+  border-radius: 6px;
+  padding: 4px 10px;
+  outline: none;
+  min-width: 200px;
+  max-width: 400px;
+}
+
+.title-input:focus {
+  border-color: rgba(0, 243, 255, 0.6);
+  box-shadow: 0 0 12px rgba(0, 245, 212, 0.2);
+}
+
+.btn-edit-title {
+  width: 28px;
+  height: 28px;
+  border-radius: 6px;
+  border: 1px solid transparent;
+  background: transparent;
+  color: var(--text-dim);
+  cursor: pointer;
+  transition: all var(--transition-fast);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  opacity: 0;
+  flex-shrink: 0;
+}
+
+.task-title:hover .btn-edit-title {
+  opacity: 1;
+}
+
+.btn-edit-title:hover {
+  background: rgba(0, 243, 255, 0.1);
+  border-color: rgba(0, 243, 255, 0.2);
+  color: var(--accent-cyan);
+}
+
+.btn-edit-title :deep(svg) {
+  stroke: currentColor;
 }
 
 .task-meta {
@@ -262,20 +457,7 @@ function formatDate() {
   margin-right: 6px;
 }
 
-.status-badge {
-  width: 80px;
-  height: 80px;
-  border-radius: 50%;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  font-size: 36px;
-}
-
 .detail-content {
-  display: grid;
-  grid-template-columns: 1fr 240px;
-  gap: 20px;
   padding: 20px 24px;
   flex: 1;
   overflow-y: auto;
@@ -320,13 +502,27 @@ function formatDate() {
 }
 
 .description-box {
+  width: 100%;
   background: rgba(0, 0, 0, 0.3);
   border: 1px solid rgba(0, 243, 255, 0.1);
   border-radius: 8px;
   padding: 16px;
-  min-height: 60px;
+  min-height: 100px;
   color: var(--text-dim);
   font-size: 14px;
+  font-family: inherit;
+  resize: vertical;
+  outline: none;
+  transition: border-color var(--transition-fast);
+  box-sizing: border-box;
+}
+
+.description-box:focus {
+  border-color: rgba(0, 243, 255, 0.3);
+}
+
+.description-box::placeholder {
+  color: var(--text-dim);
 }
 
 .task-info-list {
@@ -350,6 +546,80 @@ function formatDate() {
   text-align: center;
 }
 
+.agent-select {
+  background: rgba(0, 0, 0, 0.3);
+  border: 1px solid rgba(0, 243, 255, 0.2);
+  border-radius: 6px;
+  color: #e0f7ff;
+  font-size: 13px;
+  font-family: inherit;
+  padding: 6px 10px;
+  cursor: pointer;
+  outline: none;
+  transition: border-color var(--transition-fast);
+}
+
+.agent-select:hover {
+  border-color: rgba(0, 243, 255, 0.4);
+}
+
+.agent-select:focus {
+  border-color: rgba(0, 243, 255, 0.5);
+}
+
+.agent-select option {
+  background: #0a0f1a;
+  color: #e0f7ff;
+}
+
+.priority-select {
+  background: rgba(0, 0, 0, 0.3);
+  border: 1px solid rgba(0, 243, 255, 0.2);
+  border-radius: 6px;
+  color: #e0f7ff;
+  font-size: 13px;
+  font-family: inherit;
+  padding: 6px 10px;
+  cursor: pointer;
+  outline: none;
+  transition: border-color var(--transition-fast);
+}
+
+.priority-select:hover {
+  border-color: rgba(0, 243, 255, 0.4);
+}
+
+.priority-select:focus {
+  border-color: rgba(0, 243, 255, 0.5);
+}
+
+.priority-select option,
+.status-select option {
+  background: #0a0f1a;
+  color: #e0f7ff;
+}
+
+.status-select {
+  background: rgba(0, 0, 0, 0.3);
+  border: 1px solid rgba(0, 243, 255, 0.2);
+  border-radius: 6px;
+  color: #e0f7ff;
+  font-size: 13px;
+  font-family: inherit;
+  padding: 6px 10px;
+  cursor: pointer;
+  outline: none;
+  transition: border-color var(--transition-fast);
+}
+
+.status-select:hover {
+  border-color: rgba(0, 243, 255, 0.4);
+}
+
+.status-select:focus {
+  border-color: rgba(0, 243, 255, 0.5);
+}
+
 .priority-high {
   color: #ff4d4f;
   font-weight: 600;
@@ -385,6 +655,124 @@ function formatDate() {
   font-size: 14px;
 }
 
+.subtask-list {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+.subtask-item {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 8px;
+  background: rgba(0, 0, 0, 0.2);
+  border: 1px solid rgba(0, 243, 255, 0.08);
+  border-radius: 8px;
+  transition: border-color var(--transition-fast), opacity var(--transition-fast);
+}
+
+.subtask-item.drag-over {
+  border-color: rgba(0, 243, 255, 0.5);
+  border-style: dashed;
+}
+
+.subtask-checkbox {
+  width: 16px;
+  height: 16px;
+  cursor: pointer;
+  flex-shrink: 0;
+}
+
+.subtask-input {
+  flex: 1;
+  background: transparent;
+  border: none;
+  color: #e0f7ff;
+  font-size: 13px;
+  font-family: inherit;
+  outline: none;
+}
+
+.subtask-input.completed {
+  text-decoration: line-through;
+  color: var(--text-dim);
+}
+
+.subtask-input::placeholder {
+  color: var(--text-dim);
+}
+
+.subtask-delete {
+  width: 24px;
+  height: 24px;
+  border: none;
+  background: transparent;
+  color: var(--text-dim);
+  font-size: 18px;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: 4px;
+  transition: all var(--transition-fast);
+  flex-shrink: 0;
+}
+
+.subtask-delete:hover {
+  background: rgba(255, 77, 79, 0.2);
+  color: #ff4d4f;
+}
+
+.subtask-drag {
+  width: 24px;
+  height: 24px;
+  border: none;
+  background: transparent;
+  color: var(--text-dim);
+  font-size: 14px;
+  cursor: grab;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: 4px;
+  transition: all var(--transition-fast);
+  flex-shrink: 0;
+}
+
+.subtask-drag:hover {
+  background: rgba(0, 243, 255, 0.1);
+  color: var(--accent-cyan);
+}
+
+.subtask-agent {
+  background: rgba(0, 0, 0, 0.3);
+  border: 1px solid rgba(0, 243, 255, 0.15);
+  border-radius: 4px;
+  color: #e0f7ff;
+  font-size: 11px;
+  font-family: inherit;
+  padding: 4px 6px;
+  cursor: pointer;
+  outline: none;
+  transition: border-color var(--transition-fast);
+  flex-shrink: 0;
+  min-width: 80px;
+}
+
+.subtask-agent:hover {
+  border-color: rgba(0, 243, 255, 0.3);
+}
+
+.subtask-agent:focus {
+  border-color: rgba(0, 243, 255, 0.4);
+}
+
+.subtask-agent option {
+  background: #0a0f1a;
+  color: #e0f7ff;
+}
+
 .comment-empty {
   color: var(--text-dim);
   font-size: 14px;
@@ -436,46 +824,6 @@ function formatDate() {
   background: rgba(0, 243, 255, 0.2);
 }
 
-.sidebar {
-  display: flex;
-  flex-direction: column;
-  gap: 8px;
-}
-
-.sidebar-btn {
-  padding: 10px 14px;
-  border: 1px solid rgba(0, 243, 255, 0.15);
-  border-radius: 6px;
-  background: rgba(0, 0, 0, 0.2);
-  color: #e0f7ff;
-  font-size: 13px;
-  text-align: left;
-  cursor: pointer;
-  transition: all var(--transition-fast);
-  display: flex;
-  align-items: center;
-  gap: 8px;
-}
-
-.sidebar-btn:hover {
-  border-color: rgba(0, 243, 255, 0.4);
-  background: rgba(0, 243, 255, 0.08);
-}
-
-.sidebar-btn .icon {
-  font-size: 14px;
-}
-
-.sidebar-btn.btn-delete {
-  border-color: rgba(255, 77, 79, 0.3);
-  color: #ff4d4f;
-}
-
-.sidebar-btn.btn-delete:hover {
-  background: rgba(255, 77, 79, 0.1);
-  border-color: #ff4d4f;
-}
-
 /* Scrollbar styling */
 .detail-content::-webkit-scrollbar {
   width: 8px;