diff --git a/backend/src/main/java/com/designhub/controller/TaskItemController.java b/backend/src/main/java/com/designhub/controller/TaskItemController.java
index c308726..d66831a 100644
--- a/backend/src/main/java/com/designhub/controller/TaskItemController.java
+++ b/backend/src/main/java/com/designhub/controller/TaskItemController.java
@@ -80,7 +80,9 @@ public class TaskItemController {
         if (isAdmin) {
             // 管理员：看到所有进行中的子任务（如果指定了deptId则按部门过滤）
             if (deptId != null) {
-                items = taskItemService.getInProgressItemsByDeptIds(page, pageSize, List.of(deptId), keyword);
+                // 获取指定部门及其所有子部门
+                List<Long> deptAndChildIds = getDeptAndChildIds(deptId);
+                items = taskItemService.getInProgressItemsByDeptIds(page, pageSize, deptAndChildIds, keyword);
             } else {
                 items = taskItemService.getInProgressItems(page, pageSize, null, null, keyword);
             }
@@ -93,13 +95,20 @@ public class TaskItemController {
             // 如果指定了deptId，验证是否在负责的部门列表中
             if (deptId != null) {
                 if (leadingDeptIds.contains(deptId)) {
-                    items = taskItemService.getInProgressItemsByDeptIds(page, pageSize, List.of(deptId), keyword);
+                    // 获取指定部门及其所有子部门
+                    List<Long> deptAndChildIds = getDeptAndChildIds(deptId);
+                    items = taskItemService.getInProgressItemsByDeptIds(page, pageSize, deptAndChildIds, keyword);
                 } else {
                     // 无权查看该部门
                     items = new com.baomidou.mybatisplus.extension.plugins.pagination.Page<>();
                 }
             } else {
-                items = taskItemService.getInProgressItemsByDeptIds(page, pageSize, leadingDeptIds, keyword);
+                // 获取所有负责部门及其子部门
+                List<Long> allDeptIds = new java.util.ArrayList<>();
+                for (Long leadDeptId : leadingDeptIds) {
+                    allDeptIds.addAll(getDeptAndChildIds(leadDeptId));
+                }
+                items = taskItemService.getInProgressItemsByDeptIds(page, pageSize, allDeptIds, keyword);
             }
         } else {
             // 普通设计师：只看自己的子任务
@@ -142,7 +151,9 @@ public class TaskItemController {
         if (isAdmin) {
             // 管理员：看到所有已完成的子任务（如果指定了deptId则按部门过滤）
             if (deptId != null) {
-                items = taskItemService.getCompletedItemsByDeptIds(page, pageSize, List.of(deptId), keyword);
+                // 获取指定部门及其所有子部门
+                List<Long> deptAndChildIds = getDeptAndChildIds(deptId);
+                items = taskItemService.getCompletedItemsByDeptIds(page, pageSize, deptAndChildIds, keyword);
             } else {
                 items = taskItemService.getCompletedItems(page, pageSize, null, null, keyword);
             }
@@ -155,12 +166,19 @@ public class TaskItemController {
             // 如果指定了deptId，验证是否在负责的部门列表中
             if (deptId != null) {
                 if (leadingDeptIds.contains(deptId)) {
-                    items = taskItemService.getCompletedItemsByDeptIds(page, pageSize, List.of(deptId), keyword);
+                    // 获取指定部门及其所有子部门
+                    List<Long> deptAndChildIds = getDeptAndChildIds(deptId);
+                    items = taskItemService.getCompletedItemsByDeptIds(page, pageSize, deptAndChildIds, keyword);
                 } else {
                     items = new com.baomidou.mybatisplus.extension.plugins.pagination.Page<>();
                 }
             } else {
-                items = taskItemService.getCompletedItemsByDeptIds(page, pageSize, leadingDeptIds, keyword);
+                // 获取所有负责部门及其子部门
+                List<Long> allDeptIds = new java.util.ArrayList<>();
+                for (Long leadDeptId : leadingDeptIds) {
+                    allDeptIds.addAll(getDeptAndChildIds(leadDeptId));
+                }
+                items = taskItemService.getCompletedItemsByDeptIds(page, pageSize, allDeptIds, keyword);
             }
         } else {
             // 普通设计师：只看自己的子任务
@@ -377,4 +395,33 @@ public class TaskItemController {
         log.info("最终返回 {} 个待审核子任务组", allGroups.size());
         return Result.success(allGroups);
     }
+    
+    /**
+     * 获取指定部门及其所有子部门的ID列表
+     */
+    private List<Long> getDeptAndChildIds(Long deptId) {
+        List<Long> result = new java.util.ArrayList<>();
+        result.add(deptId);
+        
+        // 递归查询所有子部门
+        collectChildDeptIds(deptId, result);
+        
+        return result;
+    }
+    
+    /**
+     * 递归收集所有子部门ID
+     */
+    private void collectChildDeptIds(Long parentId, List<Long> result) {
+        List<com.designhub.entity.Department> children = departmentMapper.selectList(
+            new com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper<com.designhub.entity.Department>()
+                .eq(com.designhub.entity.Department::getParentId, parentId)
+                .eq(com.designhub.entity.Department::getStatus, 1)
+        );
+        
+        for (com.designhub.entity.Department child : children) {
+            result.add(child.getId());
+            collectChildDeptIds(child.getId(), result);
+        }
+    }
 }
diff --git a/frontend/src/views/TaskHall.vue b/frontend/src/views/TaskHall.vue
index f5075b5..d62546a 100644
--- a/frontend/src/views/TaskHall.vue
+++ b/frontend/src/views/TaskHall.vue
@@ -221,7 +221,7 @@
                   <h3 class="task-title">{{ task.title }}</h3>
                   <div class="task-badges">
                     <span v-if="task.isSubTask" class="badge badge-subtask">
-                      <Icon name="layers" size="sm" color="#1890ff" style="margin-right: 4px; vertical-align: middle;" />
+                      <Icon name="layers" size="sm" color="#31f08b" style="margin-right: 4px; vertical-align: middle;" />
                       子任务
                     </span>
                     <span v-if="isNewTask(task)" class="badge badge-new">
@@ -902,11 +902,11 @@
                   <h3 class="task-title">{{ task.title }}</h3>
                   <div class="task-badges">
                     <span v-if="task.isSubTask" class="badge badge-subtask">
-                      <Icon name="layers" size="sm" color="#1890ff" style="margin-right: 4px; vertical-align: middle;" />
+                      <Icon name="layers" size="sm" color="#31f08b" style="margin-right: 4px; vertical-align: middle;" />
                       子任务
                     </span>
                     <span v-if="task.releaseType === 'assigned'" class="badge badge-assigned">
-                      <Icon name="target" size="sm" color="#1890ff" style="margin-right: 4px; vertical-align: middle;" />
+                      <Icon name="target" size="sm" color="#31f08b" style="margin-right: 4px; vertical-align: middle;" />
                       指定
                     </span>
                     <span class="badge badge-in-progress">
@@ -1620,7 +1620,7 @@
                       {{ getTaskStatusText(task.status, task) }}
                     </span>
                     <span v-if="task.releaseType === 'assigned'" class="badge badge-assigned">
-                      <Icon name="target" size="sm" color="#1890ff" style="margin-right: 4px; vertical-align: middle;" />
+                      <Icon name="target" size="sm" color="#31f08b" style="margin-right: 4px; vertical-align: middle;" />
                       指定
                     </span>
                     <span v-if="task.isUrgent" class="badge badge-urgent">
@@ -2069,13 +2069,14 @@
               交付路径
             </h4>
             <div class="delivery-path">
-              <a v-if="selectedTask.deliveryPath.startsWith('http')" 
-                 :href="selectedTask.deliveryPath" 
-                 target="_blank" 
-                 class="delivery-link">
-                <Icon name="external-link" size="sm" style="margin-right: 4px;" />
-                {{ selectedTask.deliveryPath }}
-              </a>
+              <a-button 
+                v-if="selectedTask.deliveryPath.startsWith('http')" 
+                type="primary"
+                size="small"
+                @click="openDeliveryPath(selectedTask.deliveryPath)">
+                <Icon name="download" size="sm" style="margin-right: 4px;" />
+                下载素材
+              </a-button>
               <p v-else class="delivery-text">{{ selectedTask.deliveryPath }}</p>
             </div>
           </div>
@@ -2173,10 +2174,14 @@
             </h4>
             <div class="delivery-paths-list">
               <div v-for="(path, index) in selectedTask.allDeliveryPaths" :key="index" class="delivery-path-item">
-                <a v-if="isUrl(path)" :href="extractUrl(path)" target="_blank" class="delivery-link">
-                  <Icon name="link" size="sm" style="margin-right: 4px;" />
-                  {{ path }}
-                </a>
+                <a-button 
+                  v-if="isUrl(path)" 
+                  type="primary"
+                  size="small"
+                  @click="openDeliveryPath(extractUrl(path))">
+                  <Icon name="download" size="sm" style="margin-right: 4px;" />
+                  {{ extractLabel(path) }}
+                </a-button>
                 <span v-else class="delivery-text">{{ path }}</span>
               </div>
             </div>
@@ -4895,6 +4900,21 @@ const extractUrl = (str: string) => {
   return urlMatch ? urlMatch[0] : str
 }
 
+// 从子任务交付路径提取标签（例如 "【TASK...】https://..." -> "下载 TASK..."）
+const extractLabel = (str: string) => {
+  // 尝试提取【】中的内容作为标签
+  const labelMatch = str.match(/【([^】]+)】/)
+  if (labelMatch) {
+    return `下载 ${labelMatch[1]}`
+  }
+  return '下载素材'
+}
+
+// 打开交付路径
+const openDeliveryPath = (url: string) => {
+  window.open(url, '_blank')
+}
+
 // 监听配置更新事件
 const handleConfigUpdate = async (event: CustomEvent) => {
   console.log('配置已更新，刷新配置数据:', event.detail)
@@ -5587,9 +5607,9 @@ onUnmounted(() => {
 }
 
 .badge-subtask {
-  background: rgba(24, 144, 255, 0.1);
-  border: 1px solid rgba(24, 144, 255, 0.3);
-  color: #1890ff;
+  background: rgba(49, 240, 139, 0.1);
+  border: 1px solid rgba(49, 240, 139, 0.3);
+  color: #31f08b;
 }
 
 .badge-new {
@@ -5611,9 +5631,9 @@ onUnmounted(() => {
 }
 
 .badge-assigned {
-  background: rgba(24, 144, 255, 0.1);
-  border: 1px solid rgba(24, 144, 255, 0.2);
-  color: #1890ff;
+  background: rgba(49, 240, 139, 0.1);
+  border: 1px solid rgba(49, 240, 139, 0.2);
+  color: #31f08b;
 }
 
 // 待填写ID状态样式 - 醒目警告色
@@ -5948,8 +5968,8 @@ onUnmounted(() => {
         }
         
         &.in-progress {
-          background: rgba(24, 144, 255, 0.1);
-          color: #1890ff;
+          background: rgba(49, 240, 139, 0.1);
+          color: #31f08b;
         }
         
         &.pending {
@@ -6058,17 +6078,17 @@ onUnmounted(() => {
     // 进行中状态
     &.in-progress {
       .node-dot {
-        background: #1890ff;
-        border-color: #1890ff;
-        box-shadow: 0 0 10px rgba(24, 144, 255, 0.6);
+        background: #31f08b;
+        border-color: #31f08b;
+        box-shadow: 0 0 10px rgba(49, 240, 139, 0.6);
         animation: pulse 1.5s ease-in-out infinite;
       }
       .node-label {
-        color: #1890ff;
+        color: #31f08b;
         font-weight: 600;
       }
       .node-status {
-        color: #1890ff;
+        color: #31f08b;
       }
     }
     
@@ -6250,12 +6270,12 @@ onUnmounted(() => {
   flex-wrap: wrap;
   
   .prev-assets-btn {
-    background: rgba(24, 144, 255, 0.1);
-    border-color: #1890ff;
-    color: #1890ff;
+    background: rgba(49, 240, 139, 0.1);
+    border-color: #31f08b;
+    color: #31f08b;
     
     &:hover {
-      background: rgba(24, 144, 255, 0.2);
+      background: rgba(49, 240, 139, 0.2);
     }
   }
   margin-top: $space-md;