feat: 对话滚动的调整

src/App.vue

@@ -10,9 +10,13 @@ import McChat from './components/McChat.vue';
 
 <style scoped>
 .app-container {
-  height: 100vh;
+  height: calc(100vh - 16px);
   width: 100%;
   overflow: hidden;
   position: relative;
 }
+
+:deep(.mc-bubble) {
+  gap: 8px !important;
+}
 </style>

src/assets/base.css

@@ -83,4 +83,5 @@ body {
   text-rendering: optimizeLegibility;
   -webkit-font-smoothing: antialiased;
   -moz-osx-font-smoothing: grayscale;
+  
 }

src/components/McChat.vue

@@ -23,7 +23,8 @@
         @itemClick="onSubmit($event.label)"
       ></McPrompt>
     </McLayoutContent>
-    <McLayoutContent class="content-container" v-else>
+    <McLayoutContent v-else>
+      <div class="content-container" ref="contentRef"  @scroll="onScroll">
         <template v-for="(msg, idx) in messages" :key="idx">
         <McBubble
           v-if="msg.from === 'user'"
@@ -36,6 +37,7 @@
           <McMarkdownCard :content="msg.content"> </McMarkdownCard>
         </McBubble>
       </template>
+      </div>
     </McLayoutContent>
     <div class="shortcut" style="display: flex; align-items: center; gap: 8px">
       <McPrompt
@@ -81,7 +83,7 @@ import logoImg from '@/assets/logo.png';
 import avatarImg from '@/assets/chat_avatar.svg';
 import chatLogoImg from '@/assets/chat_logo.png';
 
-import { ref } from 'vue';
+import { ref, watch, nextTick } from 'vue';
 import { Button } from 'vue-devui/button';
 import 'vue-devui/button/style.css';
 import { CozeAPI } from "@coze/api";
@@ -135,7 +137,7 @@ const inputFootIcons = [
 ];
 
 const apiClient = new CozeAPI({
-  token: "cztei_lZ7Dx1q6NKcVFg0d6iT0Aesdmo5vnhgBH7TCacaxEBk9D2fIBTOwNCgxFh0a7Vo7Z",
+  token: "sat_V4vKS7SSOpYg15gvD0i0xBgQFc0D30Bj6EjMMt1eSPSCl9SKj2tCNLTEw4g4hyGa",
   baseURL: "https://api.coze.cn",
 });
 
@@ -199,6 +201,49 @@ const onSubmit = async (evt) => {
   }
 };
 
+const contentRef = ref(null); // 滚动区域 DOM
+const autoScroll = ref(true); // 是否自动滚动
+
+/** 判断用户是否滚到了最底部 */
+const isAtBottom = () => {
+  const el = contentRef.value;
+  if (!el) return false;
+  const threshold = 10; // 收敛误差
+  let atBottom = el.scrollHeight - el.scrollTop - el.clientHeight < threshold;
+  return atBottom
+};
+
+/** 滚动事件：只要用户滚动离开底部，就禁用自动滚动 */
+const onScroll = () => {
+  autoScroll.value = isAtBottom();
+};
+
+/** 自动滚动到底部 */
+const scrollToBottom = async () => {
+  await nextTick();
+  const el = contentRef.value;
+  if (!el) return;
+  el.scrollTo({
+    top: el.scrollHeight + 99999,
+    behavior: "smooth",
+  });
+
+  autoScroll.value = true;
+};
+
+/** 监听消息变化（AI 回答时） */
+const timer = ref(null);
+watch(messages.value, async (value) => {
+  if (autoScroll.value) {
+    await nextTick();
+    if (timer.value) {
+      clearTimeout(timer.value);
+    }
+    timer.value = setTimeout(() => {
+      scrollToBottom();
+    }, 200);
+  }
+});
 </script>
 
 <style>
@@ -216,8 +261,15 @@ const onSubmit = async (evt) => {
 .content-container {
   display: flex;
   flex-direction: column;
+  height: 100%;
   gap: 8px;
-  overflow: auto;
+  overflow: auto;          /* 或 scroll */
+  scrollbar-width: none;   /* Firefox */
+  -ms-overflow-style: none; /* IE & Edge */
+}
+
+.content-container::-webkit-scrollbar {
+  display: none;           /* Chrome / Safari / Edge / Opera */
 }
 
 .input-foot-wrapper {