diff --git a/web/src/components/FileUploadModal.vue b/web/src/components/FileUploadModal.vue
index 46bbeca1..8075b73b 100644
--- a/web/src/components/FileUploadModal.vue
+++ b/web/src/components/FileUploadModal.vue
@@ -29,7 +29,7 @@
           </div>
         </div>
         <div class="config-controls">
-          <a-button type="dashed" @click="showChunkConfigModal">
+          <a-button type="dashed" @click="showChunkConfigModal" v-if="!isGraphBased">
             <SettingOutlined /> 分块参数 ({{ chunkParams.chunk_size }}/{{ chunkParams.chunk_overlap }})
           </a-button>
         </div>
@@ -112,7 +112,7 @@
         >
           <p class="ant-upload-text">点击或者把文件拖拽到这里上传</p>
           <p class="ant-upload-hint">
-            目前仅支持上传文本文件，如 .pdf, .txt, .md。且同名文件无法重复添加
+            目前仅支持上传文本、图片文件，如 .pdf, .txt, .md, .docx, png, jpg等。
           </p>
         </a-upload-dragger>
       </div>
@@ -252,6 +252,11 @@ const isQaSplitSupported = computed(() => {
   return type === 'chroma' || type === 'milvus';
 });
 
+const isGraphBased = computed(() => {
+  const type = kbType.value?.toLowerCase();
+  return type === 'lightrag';
+});
+
 // 计算属性：OCR选项
 const enableOcrOptions = computed(() => [
   {
diff --git a/web/src/components/KnowledgeGraphSection.vue b/web/src/components/KnowledgeGraphSection.vue
index 10ccce21..f0c0b2c3 100644
--- a/web/src/components/KnowledgeGraphSection.vue
+++ b/web/src/components/KnowledgeGraphSection.vue
@@ -36,7 +36,7 @@
           <SettingOutlined />
           查询参数
         </a-button>
-        <a-button
+        <!-- <a-button
           type="text"
           size="small"
           :icon="h(DeleteOutlined)"
@@ -45,7 +45,7 @@
           :disabled="!isGraphSupported"
         >
           清空
-        </a-button>
+        </a-button> -->
         <a-button
           type="text"
           size="small"
diff --git a/web/src/views/AgentView.vue b/web/src/views/AgentView.vue
index d44adfd0..850f6c66 100644
--- a/web/src/views/AgentView.vue
+++ b/web/src/views/AgentView.vue
@@ -24,19 +24,6 @@
             独立页面
           </a-button>
         </div>
-        <div class="header-item">
-          <a-tooltip :title="isDefaultAgent ? '当前为默认智能体' : '设为默认智能体'" placement="left">
-            <a-button
-              class="header-button primary-action"
-              @click="setAsDefaultAgent"
-              v-if="selectedAgentId && userStore.isAdmin"
-              :disabled="isDefaultAgent"
-          >
-              <template #icon><StarOutlined /></template>
-            </a-button>
-          </a-tooltip>
-
-        </div>
       </div>
     </div>
     <div class="agent-view-body">
@@ -269,9 +256,7 @@
                 <div class="agent-card-title">
                   <span class="agent-card-name">{{ agent.name }}</span>
                   <StarFilled v-if="id === defaultAgentId" class="default-icon" />
-                </div>
-                <div class="agent-card-indicator">
-                  <CheckCircleOutlined v-if="id === selectedAgentId" />
+                  <StarOutlined v-else @click.prevent="setAsDefaultAgent" class="default-icon" />
                 </div>
               </div>
               <div class="agent-card-description">{{ agent.description }}</div>
@@ -1247,15 +1232,6 @@ const toggleConf = () => {
         border-color: var(--main-color);
       }
 
-      &.selected {
-        border-color: var(--main-color);
-        background: var(--main-10);
-
-        .agent-card-indicator {
-          color: var(--main-color);
-        }
-      }
-
       .agent-card-header {
         display: flex;
         justify-content: space-between;
@@ -1281,13 +1257,6 @@ const toggleConf = () => {
             flex-shrink: 0;
           }
         }
-
-        .agent-card-indicator {
-          font-size: 20px;
-          color: var(--gray-400);
-          transition: color 0.2s ease;
-          flex-shrink: 0;
-        }
       }
 
       .agent-card-description {
@@ -1300,6 +1269,22 @@ const toggleConf = () => {
         overflow: hidden;
         text-overflow: ellipsis;
       }
+
+
+      &.selected {
+        border-color: var(--main-color);
+        background: var(--main-20);
+        // outline: 2px solid var(--main-color);
+
+        .agent-card-header .agent-card-title .agent-card-name {
+          color: var(--main-color);
+        }
+
+        .agent-card-description {
+          color: var(--gray-900);
+        }
+      }
+
     }
   }
 }
diff --git a/web/src/views/GraphView.vue b/web/src/views/GraphView.vue
index edad39ed..5e45f90b 100644
--- a/web/src/views/GraphView.vue
+++ b/web/src/views/GraphView.vue
@@ -80,7 +80,7 @@
         >
           <p class="ant-upload-text">点击或者把文件拖拽到这里上传</p>
           <p class="ant-upload-hint">
-            目前仅支持上传 jsonl 文件。且同名文件无法重复添加。
+            目前仅支持上传 jsonl 文件。
           </p>
         </a-upload-dragger>
       </div>