diff --git a/src/views/tasklist/components/PlanPreviewModal.vue b/src/views/tasklist/components/PlanPreviewModal.vue
index 2a2e088..891dda8 100644
--- a/src/views/tasklist/components/PlanPreviewModal.vue
+++ b/src/views/tasklist/components/PlanPreviewModal.vue
@@ -5,7 +5,7 @@
     :footer="null"
     :destroy-on-close="true"
     wrap-class-name="plan-preview-modal"
-    :body-style="{ maxHeight: '80vh', overflowY: 'auto', padding: '0 24px' }"
+    :body-style="{ height: '78vh', overflowY: 'auto', padding: '0 24px' }"
     @cancel="emit('update:visible', false)"
   >
     <template #title>
@@ -30,7 +30,7 @@
           >
             {{ secretText }}
           </span>
-          <div class="collaborator-bar" @click.stop="openCollaborator">
+          <div class="collaborator-bar" :class="{ disabled: !isOwner }" @click.stop="isOwner && openCollaborator()">
             <AvatarDisplay
               v-if="collaboratorDisplayNames"
               :names="collaboratorDisplayNames"
@@ -322,6 +322,7 @@ const props = defineProps<{
   secretText?: string;
   isFavorited: boolean;
   collaboratorNames?: string;
+  myPermission?: string;
 }>();
 
 const emit = defineEmits<{
@@ -357,6 +358,7 @@ const pickerEpoch = ref(0);
 
 const collaboratorModalRef = ref();
 const collaboratorDisplayNames = computed(() => props.collaboratorNames || '');
+const isOwner = computed(() => props.myPermission === '1');
 const collabCount = computed(() => {
   if (!props.collaboratorNames) return 0;
   return props.collaboratorNames.split(/[,，、]/).filter(Boolean).length;
@@ -824,6 +826,15 @@ function onGroupChange({ key }: { key: string }) { groupDimension.value = key as
     border-color: #d0d0d0;
     background: #fafafa;
   }
+
+  &.disabled {
+    cursor: not-allowed;
+    opacity: 0.5;
+    &:hover {
+      border-color: #e8e8e8;
+      background: transparent;
+    }
+  }
 }
 
 .collab-btn {
diff --git a/src/views/tasklist/components/TaskContent.vue b/src/views/tasklist/components/TaskContent.vue
index af32848..1c4a4d1 100644
--- a/src/views/tasklist/components/TaskContent.vue
+++ b/src/views/tasklist/components/TaskContent.vue
@@ -19,11 +19,6 @@
               @search="onSearch"
             />
           </div>
-          <a-tooltip title="使用帮助">
-            <a-button type="text" size="small" class="help-btn" @click="helpModalOpen = true">
-              <Icon icon="ant-design:question-circle-outlined" />
-            </a-button>
-          </a-tooltip>
         </div>
       </template>
       <template v-else>
@@ -838,15 +833,13 @@
       :role="1"
       @confirm="onUserSelectConfirm"
     />
-    <HelpModal v-model:open="helpModalOpen" />
     </a-spin>
   </div>
 </template>
 
 <script lang="ts" setup>
   import { ref, shallowRef, computed, watch, nextTick } from 'vue';
-  import HelpModal from './HelpModal.vue';
-  import dayjs from 'dayjs';
+    import dayjs from 'dayjs';
   import Icon from '/@/components/Icon/index';
   import AvatarDisplay from './AvatarDisplay.vue';
   import draggable from 'vuedraggable';
@@ -921,7 +914,6 @@
   const userStore = useUserStore();
   const { createConfirm } = useMessage();
 
-  const helpModalOpen = ref(false);
 
   function onCreateListClick() {
     emit('create-list');
@@ -2096,14 +2088,6 @@
     margin-left: 16px;
   }
 
-  .help-btn {
-    color: #888;
-    font-size: 18px;
-    &:hover {
-      color: #1677ff;
-    }
-  }
-
   .content-header-actions {
     display: flex;
     align-items: center;
diff --git a/src/views/tasklist/index.vue b/src/views/tasklist/index.vue
index 615eb9e..830a7f8 100644
--- a/src/views/tasklist/index.vue
+++ b/src/views/tasklist/index.vue
@@ -111,6 +111,7 @@
       :secret-level="previewSecretLevel"
       :secret-text="previewSecretText"
       :collaborator-names="previewCollaboratorNames"
+      :my-permission="previewMyPermission"
       :is-favorited="previewIsFavorited"
       @update:visible="(v) => (previewModalVisible = v)"
       @add-to-favorites="onAddToFavorites"
@@ -219,6 +220,7 @@ import PlanPreviewModal from './components/PlanPreviewModal.vue';
   const previewSecretLevel = ref(1);
   const previewSecretText = ref('非密');
   const previewCollaboratorNames = ref('');
+  const previewMyPermission = ref('');
   const previewIsFavorited = computed(() => favoriteIdMap.value.has(previewListId.value));
 
   const userStore = useUserStore();
@@ -560,6 +562,7 @@ import PlanPreviewModal from './components/PlanPreviewModal.vue';
     previewSecretLevel.value = (list as any).secretLevel || 1;
     previewSecretText.value = (list as any).secretText || '非密';
     previewCollaboratorNames.value = list.collaboratorNames || '';
+    previewMyPermission.value = list.myPermission || '';
     previewModalVisible.value = true;
   }