修改了历史问答的样式，修改了通用问答的样式

chat-client/src/views/chatweb/commQA/index.vue

@@ -18,9 +18,19 @@
           </el-icon>
         </el-badge>
       </el-tooltip>
+
+    </div>
+    <!-- 导出PDF按钮 -->
+    <div class="export-pdf-button " @click="exportChatToPdf">
+      <el-tooltip content="导出为PDF" placement="left">
+          <el-icon :size="20">
+           <Document/>
+          </el-icon>
+      </el-tooltip>
     </div>
 
     <ChatBox
+      ref="chatBoxRef"
       v-if="isDataLoaded"
       :chat-type="chatType"
       :user-id="userId"
@@ -110,16 +120,33 @@ import { useAclStore } from '@/store/modules/acl'
 import { ElMessage, ElMessageBox } from 'element-plus'
 import { useI18n } from 'vue-i18n'
 import { getRecommendations } from '@/api/prologue'
-import { FullScreen, Close, Collection } from '@element-plus/icons-vue'
+import {FullScreen, Close, Collection, Download, Document} from '@element-plus/icons-vue'
 import {
   getWorkflowAndDatasetTableData,
   getAllUserDatasets,
   addDatasetsToWorkflow,
   removeDatasetsFromWorkflow
 } from '@/api/functionKnowledgeConfig'
+import { exportElementToPdf } from '@/utils/exportPdf.ts'
 
 const { t, locale } = useI18n()
 const aclStore = useAclStore()
+const chatBoxRef = ref<InstanceType<typeof ChatBox>|null>(null)
+
+const exportChatToPdf = async () => {
+  if (chatBoxRef.value) {
+    if (chatBoxRef.value.messagesQuantity === 0) {
+      ElMessage.error('当前没有消息可导出,请开始聊天吧')
+      return
+    }
+    await exportElementToPdf(chatBoxRef.value.messagesContainer, 'chat-history.pdf')
+    ElMessage.success('导出成功')
+  }
+  else {
+    ElMessage.error('导出失败')
+  }
+}
+
 
 // 状态管理
 const placeholder = ref('给AI助手发送消息')
@@ -587,4 +614,40 @@ onUnmounted(() => {
 .main-container.fullscreen-mode ~ .v-modal {
   z-index: 19999 !important;
 }
+.export-pdf-button {
+  position: absolute;
+  top: 16px;
+  right: 110px;
+  z-index: 100;
+  width: 40px;
+  height: 40px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: var(--el-bg-color);
+  border: 1px solid var(--el-border-color);
+  border-radius: 8px;
+  cursor: pointer;
+  transition: all 0.3s ease;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
+}
+.export-pdf-button:hover {
+  background: var(--el-color-primary);
+  color: white;
+  border-color: var(--el-color-primary);
+  transform: scale(1.05);
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
+}
+
+.export-pdf-button :deep(.el-icon) {
+  transition: color 0.3s ease;
+}
+
+.export-pdf-button:hover :deep(.el-icon) {
+  color: white;
+}
+
+.export-pdf-button :deep(.el-badge__content) {
+  border: none;
+}
 </style>

chat-client/src/views/chatweb/historicalRecords/components/details.vue

@@ -289,7 +289,7 @@
 
 <style scoped>
   .conversation-detail {
-    max-width: 800px;
+    max-width: 1000px;
     margin: 0 auto;
     padding: 0;
     background: #fff;
@@ -547,23 +547,42 @@
     font-style: italic;
   }
 
-  /* 滚动条样式 */
-  .timeline-container::-webkit-scrollbar {
-    width: 6px;
+  /* 表格样式 */
+  .message-content :deep(table) {
+    width: 100%;
+    border-collapse: collapse;
+    margin: 16px 0;
+    display: block;
+    overflow-x: auto;
+    white-space: nowrap;
   }
 
-  .timeline-container::-webkit-scrollbar-track {
-    background: #f1f1f1;
-    border-radius: 3px;
+  .message-content :deep(th),
+  .message-content :deep(td) {
+    padding: 8px 12px;
+    border: 1px solid #eaecef;
+    text-align: left;
   }
 
-  .timeline-container::-webkit-scrollbar-thumb {
-    background: #c1c1c1;
-    border-radius: 3px;
+  .message-content :deep(th) {
+    background-color: #f6f8fa;
+    font-weight: 600;
   }
 
-  .timeline-container::-webkit-scrollbar-thumb:hover {
-    background: #a8a8a8;
+  .message-content :deep(tr:nth-child(even)) {
+    background-color: #fafbfc;
+  }
+
+  /* 超过3列的表格特殊处理 */
+  .message-content :deep(table) {
+    max-width: 100%;
+    table-layout: fixed;
+  }
+
+  .message-content :deep(th),
+  .message-content :deep(td) {
+    overflow: hidden;
+    text-overflow: ellipsis;
   }
 
   .export-btn {

chat-client/src/views/chatweb/historicalRecords/index.vue

@@ -463,6 +463,6 @@
   .rounded-devlog {
     border-radius: 8px; /* 调整圆角大小 */
     overflow: hidden; /* 确保内部内容也被圆角裁剪 */
-    width: 46%;
+    width:52%;
   }
 </style>