diff --git a/src/components/xt-chat/chat-view/index.vue b/src/components/xt-chat/chat-view/index.vue
index 97459e7..58558dd 100644
--- a/src/components/xt-chat/chat-view/index.vue
+++ b/src/components/xt-chat/chat-view/index.vue
@@ -1,15 +1,14 @@
 <script lang="tsx">
-import { message as antdMessage, Tooltip } from 'ant-design-vue';
+import { message as antdMessage } from 'ant-design-vue';
 import { BubbleList } from '@/components/xt-chat/xt-bubble';
 import SenderInput from './components/sender-input/index.vue';
 import RightView from './components/right-view/index.vue';
 
-import { useRoute } from 'vue-router';
 import { useChatStore } from '@/stores/modules/chat';
 import { getConversationList } from '@/api/all/chat';
 import querySSE from '@/utils/querySSE';
 import useChatHandler from './useChatHandler';
-import { QUESTION_ROLE, LOADING_ROLE, REMOTE_ROLE } from './constants';
+import { QUESTION_ROLE, LOADING_ROLE } from './constants';
 
 export default {
   props: {
@@ -43,7 +42,7 @@ export default {
       conversationList.value.push({
         role: QUESTION_ROLE,
         content: message,
-      });
+      });      
 
       initSse({ message });
     };
@@ -85,6 +84,7 @@ export default {
             agent_id: chatStore.agentInfo.agent_id,
           }),
         });
+
       } catch (error) {
         console.error('Failed to initialize SSE:', error);
         antdMessage.error('初始化连接失败');
@@ -128,6 +128,7 @@ export default {
             role: QUESTION_ROLE,
             content: message,
           });
+  
           initSse(newVal);
         }
       },
diff --git a/src/components/xt-chat/chat-view/useChatHandler.tsx b/src/components/xt-chat/chat-view/useChatHandler.tsx
index 1950f67..d51a515 100644
--- a/src/components/xt-chat/chat-view/useChatHandler.tsx
+++ b/src/components/xt-chat/chat-view/useChatHandler.tsx
@@ -226,15 +226,13 @@ export default function useChatHandler(options: UseChatHandlerOptions): UseChatH
                 )}
               </div>
             )}
-            {isCollapse && (
-              <div class="relative thought-chain-item">
-                <div class="flex items-center mb-4px">
-                  <img src={isRulCompleted ? icon1 : icon2} width={13} height={13} class="mr-4px" />
-                  <div>{node}</div>
-                </div>
-                <div v-html={md.render(output)} class={outputEleClass} />
+            <div class="relative thought-chain-item" style={{ display: isCollapse ? 'block' : 'none' }}>
+              <div class="flex items-center mb-4px">
+                <img src={isRulCompleted ? icon1 : icon2} width={13} height={13} class="mr-4px" />
+                <div>{node}</div>
               </div>
-            )}
+              <div v-html={md.render(output)} class={outputEleClass} />
+            </div>
             {customRender?.()}
           </>
         );
diff --git a/src/components/xt-chat/xt-bubble/types.ts b/src/components/xt-chat/xt-bubble/types.ts
index 333d7f4..83c872e 100644
--- a/src/components/xt-chat/xt-bubble/types.ts
+++ b/src/components/xt-chat/xt-bubble/types.ts
@@ -118,7 +118,7 @@ export interface BubbleProps<ContentType extends BubbleContentType = string>
  */
 export interface BubbleRef {
   /** 气泡组件的原生DOM元素 */
-  nativeElement: HTMLElement;
+  bubbleElement: HTMLElement;
   /** 中止当前打字效果并立即展示完整内容 */
   abortTyping: VoidFunction;
 }
@@ -138,7 +138,7 @@ export interface BubbleContextProps {
  */
 export interface BubbleListRef {
   /** 气泡列表的原生DOM元素 */
-  nativeElement: HTMLDivElement;
+  bubbleElement: HTMLDivElement;
   /** 滚动到指定位置的方法 */
   scrollTo: (info: {
     /** 滚动偏移量 */
@@ -180,8 +180,6 @@ export type RolesType = Record<string, RoleType> | ((bubbleDataP: BubbleDataType
  * 定义气泡列表组件的所有可配置属性
  */
 export interface BubbleListProps extends /* @vue-ignore */ HTMLAttributes {
-  /** 组件前缀类名 */
-  prefixCls?: string;
   /** 根元素的自定义类名 */
   rootClassName?: string;
   /** 气泡数据数组 */
diff --git a/src/components/xt-chat/xt-bubble/xt-bubble.vue b/src/components/xt-chat/xt-bubble/xt-bubble.vue
index 80ab0e2..2fecee2 100644
--- a/src/components/xt-chat/xt-bubble/xt-bubble.vue
+++ b/src/components/xt-chat/xt-bubble/xt-bubble.vue
@@ -15,6 +15,8 @@ export default defineComponent({
     const props = attrs as unknown as BubbleProps<BubbleContentType> & { style?: any; class?: any };
 
     const content = ref<BubbleContentType>(props.content ?? '');
+    const bubbleElement = ref<HTMLDivElement>(null);
+
     watch(
       () => props.content,
       (val) => {
@@ -103,10 +105,11 @@ export default defineComponent({
 
     expose({
       abortTyping,
+      bubbleElement,
     });
 
     return () => (
-      <div class={mergedCls.value} style={{ ...(props.style || {}) }}>
+      <div class={mergedCls.value} style={{ ...(props.style || {}) }} ref={bubbleElement}>
         {(slots.avatar || props.avatar) && (
           <div class={[`${prefixCls}-avatar`, props.classNames?.avatar]} style={props.styles?.avatar}>
             {avatarNode.value}
diff --git a/src/components/xt-chat/xt-bubble/xt-bubbleList.vue b/src/components/xt-chat/xt-bubble/xt-bubbleList.vue
index 89026b3..56fde0b 100644
--- a/src/components/xt-chat/xt-bubble/xt-bubbleList.vue
+++ b/src/components/xt-chat/xt-bubble/xt-bubbleList.vue
@@ -23,9 +23,34 @@ import {
 export default defineComponent({
   name: 'BubbleList',
   inheritAttrs: false,
-  props: {},
-  setup(_, { attrs, slots, expose }) {
-    const props = attrs as unknown as BubbleListProps & { class?: any; style?: any };
+  // 正确声明 props，提供默认值，确保 TSX 下默认值生效
+  props: {
+    autoScroll: {
+      type: Boolean,
+      default: true,
+    },
+    items: {
+      type: Array as () => BubbleListProps['items'],
+      required: true,
+    },
+    roles: {
+      type: Object as () => RolesType,
+      default: () => ({} as RolesType),
+    },
+    rootClassName: {
+      type: String,
+      default: '',
+    },
+    style: {
+      type: Object as () => Record<string, any>,
+      default: () => ({}),
+    },
+    class: {
+      type: [String, Array, Object] as unknown as () => any,
+      default: '',
+    },
+  },
+  setup(props, { attrs, slots, expose }) {
     const passThroughAttrs = useAttrs();
 
     const TOLERANCE = 1;
@@ -63,14 +88,16 @@ export default defineComponent({
     // scroll
     const [scrollReachEnd, setScrollReachEnd] = useState(true);
     const [updateCount, setUpdateCount] = useState(0);
+    // 首次挂载后仅自动滚动一次
+    const didInitialAutoScroll = ref(false);
 
     const onInternalScroll = (e: Event) => {
       const target = e.target as HTMLElement;
       setScrollReachEnd(target.scrollHeight - Math.abs(target.scrollTop) - target.clientHeight <= TOLERANCE);
     };
 
-    watch(updateCount, () => {
-      if ((props.autoScroll ?? true) && unref(listRef) && unref(scrollReachEnd)) {
+    watch([updateCount, scrollReachEnd, listRef], () => {
+      if (props.autoScroll && unref(listRef) && unref(scrollReachEnd)) {
         nextTick(() => {
           unref(listRef)!.scrollTo({ top: unref(listRef)!.scrollHeight });
         });
@@ -79,26 +106,24 @@ export default defineComponent({
 
     watch(
       () => unref(displayData).length,
-      () => {
-        if (props.autoScroll ?? true) {
-          const lastItemKey = unref(displayData)[unref(displayData).length - 2]?.key;
-          const bubbleInst = unref(bubbleRefs)[lastItemKey!];
-          if (bubbleInst) {
-            const { nativeElement } = bubbleInst;
-            const { top = 0, bottom = 0 } = nativeElement?.getBoundingClientRect() ?? {};
-            const { top: listTop, bottom: listBottom } = unref(listRef)!.getBoundingClientRect();
-            const isVisible = top < listBottom && bottom > listTop;
-            if (isVisible) {
-              setUpdateCount(unref(updateCount) + 1);
-              setScrollReachEnd(true);
-            }
-          }
+      (newLen, oldLen) => {
+        if (!props.autoScroll) return;
+        // 首次渲染：当有内容时滚到底部一次
+        if (!didInitialAutoScroll.value && newLen > 0) {
+          scrollToBottom('auto');
+          didInitialAutoScroll.value = true;
+          return;
+        }
+        // 新增内容且当前在底部：继续粘底
+        if (oldLen !== undefined && newLen > (oldLen ?? 0) && unref(scrollReachEnd)) {
+          scrollToBottom();
         }
       },
+      { immediate: true },
     );
 
     const onBubbleUpdate = useEventCallback<void>(() => {
-      if (props.autoScroll ?? true) setUpdateCount(unref(updateCount) + 1);
+      if (props.autoScroll) setUpdateCount(unref(updateCount) + 1);
     });
     const context = computed(() => ({ onUpdate: onBubbleUpdate }));
 
@@ -106,6 +131,18 @@ export default defineComponent({
     const abortTypingByKey = (key: string | number) => {
       bubbleRefs.value[key]?.abortTyping?.();
     };
+    // 通用：滚动到底部
+    const scrollToBottom = (behavior: ScrollBehavior = 'smooth') => {
+      nextTick(() => {
+        requestAnimationFrame(() => {
+          const el = unref(listRef);
+          if (el) {
+            el.scrollTo({ top: el.scrollHeight, behavior });
+            setScrollReachEnd(true);
+          }
+        })
+      });
+    };
     // 对外暴露能力
     expose({
       nativeElement: listRef,
@@ -113,6 +150,7 @@ export default defineComponent({
       scrollTo: (info: any) => {
         unref(listRef)?.scrollTo?.(info);
       },
+      scrollToBottom,
     });
 
     return () => (