From 283dbbd577df32e80df9513a43bf0f80a5dbcc5f Mon Sep 17 00:00:00 2001
From: wizardchen <wizardchen@tencent.com>
Date: Tue, 16 Jun 2026 00:49:52 +0800
Subject: [PATCH] feat(chat): improve chat layout and suggested questions UX

Refine input field, session sidebar, suggested questions refresh, and
embed channel preview for a cleaner chat creation experience.
---
 .../src/components/EmbedChannelPreview.vue    |  94 +++--
 frontend/src/components/Input-field.vue       | 358 +++++++++---------
 frontend/src/components/SessionSidebarRow.vue | 147 ++++++-
 frontend/src/components/menu.vue              |  89 +++--
 .../src/composables/useEmbedChatSession.ts    |   2 +
 frontend/src/views/creatChat/creatChat.vue    | 140 ++++---
 .../src/views/knowledge/wiki/WikiBrowser.vue  |   2 +
 7 files changed, 509 insertions(+), 323 deletions(-)

diff --git a/frontend/src/components/EmbedChannelPreview.vue b/frontend/src/components/EmbedChannelPreview.vue
index 7a3be14d..5492d3c0 100644
--- a/frontend/src/components/EmbedChannelPreview.vue
+++ b/frontend/src/components/EmbedChannelPreview.vue
@@ -1,12 +1,6 @@
 <template>
-  <t-drawer
-    :visible="visible"
-    :header="title || $t('embedPublish.preview')"
-    size="720px"
-    :footer="false"
-    class="embed-preview-drawer"
-    @close="emit('update:visible', false)"
-  >
+  <t-drawer :visible="visible" :header="title || $t('embedPublish.preview')" size="720px" :footer="false"
+    :z-index="2600" class="embed-preview-drawer" @close="emit('update:visible', false)">
     <div class="preview-body">
       <template v-if="mode === 'iframe'">
         <p class="preview-hint">{{ $t('embedPublish.previewIframeHint') }}</p>
@@ -19,13 +13,7 @@
           </div>
           <div class="device-frame__screen">
             <t-loading v-if="!iframeSrc || !iframeReady" size="small" :text="$t('embedPublish.previewLoading')" />
-            <iframe
-              v-else
-              :key="iframeSrc"
-              :src="iframeSrc"
-              class="preview-iframe"
-              allow="clipboard-write"
-            />
+            <iframe v-else :key="iframeSrc" :src="iframeSrc" class="preview-iframe" allow="clipboard-write" />
           </div>
         </div>
       </template>
@@ -38,25 +26,15 @@
             <div class="widget-mock-page__line" />
             <div class="widget-mock-page__line widget-mock-page__line--short" />
           </div>
-          <button
-            type="button"
-            class="widget-launcher"
-            :style="{ background: primaryColor || 'var(--td-brand-color)' }"
+          <button type="button" class="widget-launcher" :style="{ background: primaryColor || 'var(--td-brand-color)' }"
             :aria-label="widgetOpen ? $t('common.close') : $t('embedPublish.preview')"
-            @click="widgetOpen = !widgetOpen"
-          >
+            @click="widgetOpen = !widgetOpen">
             <t-icon :name="widgetOpen ? 'close' : 'chat'" />
           </button>
           <transition name="widget-panel">
             <div v-show="widgetOpen" class="widget-panel">
-              <iframe
-                v-if="iframeSrc && iframeReady"
-                :key="`widget-${iframeSrc}`"
-                :src="iframeSrc"
-                class="preview-iframe"
-                :title="title || $t('embedPublish.preview')"
-                allow="clipboard-write"
-              />
+              <iframe v-if="iframeSrc && iframeReady" :key="`widget-${iframeSrc}`" :src="iframeSrc"
+                class="preview-iframe" :title="title || $t('embedPublish.preview')" allow="clipboard-write" />
             </div>
           </transition>
         </div>
@@ -172,9 +150,17 @@ watch(() => props.visible, async (open) => {
     border-radius: 50%;
     background: var(--td-component-stroke);
 
-    &:nth-child(1) { background: #ff5f57; }
-    &:nth-child(2) { background: #febc2e; }
-    &:nth-child(3) { background: #28c840; }
+    &:nth-child(1) {
+      background: #ff5f57;
+    }
+
+    &:nth-child(2) {
+      background: #febc2e;
+    }
+
+    &:nth-child(3) {
+      background: #28c840;
+    }
   }
 
   &__url {
@@ -289,23 +275,51 @@ watch(() => props.visible, async (open) => {
 }
 
 .pos-bottom-right {
-  .widget-launcher { right: 20px; bottom: 20px; }
-  .widget-panel { right: 20px; bottom: 80px; }
+  .widget-launcher {
+    right: 20px;
+    bottom: 20px;
+  }
+
+  .widget-panel {
+    right: 20px;
+    bottom: 80px;
+  }
 }
 
 .pos-bottom-left {
-  .widget-launcher { left: 20px; bottom: 20px; }
-  .widget-panel { left: 20px; bottom: 80px; }
+  .widget-launcher {
+    left: 20px;
+    bottom: 20px;
+  }
+
+  .widget-panel {
+    left: 20px;
+    bottom: 80px;
+  }
 }
 
 .pos-top-right {
-  .widget-launcher { right: 20px; top: 20px; }
-  .widget-panel { right: 20px; top: 80px; }
+  .widget-launcher {
+    right: 20px;
+    top: 20px;
+  }
+
+  .widget-panel {
+    right: 20px;
+    top: 80px;
+  }
 }
 
 .pos-top-left {
-  .widget-launcher { left: 20px; top: 20px; }
-  .widget-panel { left: 20px; top: 80px; }
+  .widget-launcher {
+    left: 20px;
+    top: 20px;
+  }
+
+  .widget-panel {
+    left: 20px;
+    top: 80px;
+  }
 }
 </style>
 
diff --git a/frontend/src/components/Input-field.vue b/frontend/src/components/Input-field.vue
index 245581fa..eed09fa8 100644
--- a/frontend/src/components/Input-field.vue
+++ b/frontend/src/components/Input-field.vue
@@ -2152,195 +2152,199 @@ defineExpose({
 
       <!-- 控制栏（放在 rich-input-container 内，相对输入框边框定位） -->
       <div class="control-bar" :class="{ 'is-embedded': embeddedMode }">
-      <!-- 左侧控制按钮 -->
-      <div class="control-left" v-if="!embeddedMode">
-        <!-- Agent 模式切换按钮 -->
-        <div ref="agentModeButtonRef" class="control-btn agent-mode-btn" :class="{
-          'is-normal': !isCustomAgent && !isAgentEnabled,
-          'is-agent': !isCustomAgent && isAgentEnabled,
-          'is-custom': isCustomAgent
-        }" @click.stop="toggleAgentModeSelector">
-          <span class="agent-mode-text">
-            {{ selectedAgent.name || (isAgentEnabled ? $t('input.agentMode') : $t('input.normalMode')) }}
-          </span>
-          <svg width="12" height="12" viewBox="0 0 12 12" fill="currentColor" class="dropdown-arrow"
-            :class="{ 'rotate': showAgentModeSelector }">
-            <path d="M2.5 4.5L6 8L9.5 4.5H2.5Z" />
-          </svg>
-        </div>
-
-        <!-- Agent 选择器下拉菜单 -->
-        <AgentSelector :visible="showAgentModeSelector" :anchorEl="agentModeButtonRef" :currentAgentId="selectedAgentId"
-          :agents="enabledAgents" @close="closeAgentModeSelector" @select="handleSelectAgent" />
-
-        <!-- WebSearch 开关按钮 -->
-        <t-tooltip placement="top" theme="light" :popupProps="{ overlayClassName: 'input-field-tooltip' }">
-          <template #content>
-            <div v-if="isWebSearchDisabledByAgent" class="tooltip-with-link">
-              <span>{{ $t('input.webSearchDisabledByAgent') }}</span>
-              <a href="#" @click.prevent="handleGoToAgentSettings('websearch')">{{ $t('input.goToAgentSettings') }}</a>
-            </div>
-            <span v-else-if="isWebSearchConfigured">{{ isWebSearchEnabled ? $t('input.webSearch.toggleOff') :
-              $t('input.webSearch.toggleOn') }}</span>
-            <div v-else class="tooltip-with-link">
-              <span>{{ $t('input.webSearch.notConfigured') }}</span>
-              <a href="#" @click.prevent="handleGoToWebSearchSettings">{{ $t('input.goToSettings') }}</a>
-            </div>
-          </template>
-          <div class="control-btn websearch-btn" :class="{
-            'active': isWebSearchEnabled && isWebSearchConfigured,
-            'disabled': !isWebSearchConfigured || isWebSearchDisabledByAgent
-          }" @click.stop="toggleWebSearch">
-            <svg width="18" height="18" viewBox="0 0 18 18" fill="none" xmlns="http://www.w3.org/2000/svg"
-              class="control-icon websearch-icon" :class="{ 'active': isWebSearchEnabled && isWebSearchConfigured }">
-              <circle cx="9" cy="9" r="7" stroke="currentColor" stroke-width="1.2" fill="none" />
-              <path d="M 9 2 A 3.5 7 0 0 0 9 16" stroke="currentColor" stroke-width="1.2" fill="none" />
-              <path d="M 9 2 A 3.5 7 0 0 1 9 16" stroke="currentColor" stroke-width="1.2" fill="none" />
-              <line x1="2.94" y1="5.5" x2="15.06" y2="5.5" stroke="currentColor" stroke-width="1.2"
-                stroke-linecap="round" />
-              <line x1="2.94" y1="12.5" x2="15.06" y2="12.5" stroke="currentColor" stroke-width="1.2"
-                stroke-linecap="round" />
+        <!-- 左侧控制按钮 -->
+        <div class="control-left" v-if="!embeddedMode">
+          <!-- Agent 模式切换按钮 -->
+          <div ref="agentModeButtonRef" class="control-btn agent-mode-btn" :class="{
+            'is-normal': !isCustomAgent && !isAgentEnabled,
+            'is-agent': !isCustomAgent && isAgentEnabled,
+            'is-custom': isCustomAgent
+          }" @click.stop="toggleAgentModeSelector">
+            <span class="agent-mode-text">
+              {{ selectedAgent.name || (isAgentEnabled ? $t('input.agentMode') : $t('input.normalMode')) }}
+            </span>
+            <svg width="12" height="12" viewBox="0 0 12 12" fill="currentColor" class="dropdown-arrow"
+              :class="{ 'rotate': showAgentModeSelector }">
+              <path d="M2.5 4.5L6 8L9.5 4.5H2.5Z" />
             </svg>
           </div>
-        </t-tooltip>
 
-        <!-- 图片上传按钮 -->
-        <t-tooltip placement="top" theme="light" :popupProps="{ overlayClassName: 'input-field-tooltip' }">
-          <template #content>
-            <div v-if="!isImageUploadEnabledByAgent" class="tooltip-with-link">
-              <span>{{ $t('input.imageUploadDisabledByAgent') }}</span>
-              <a href="#" @click.prevent="handleGoToAgentSettings('model')">{{ $t('input.goToAgentSettings') }}</a>
-            </div>
-            <span v-else>{{ $t('chat.imageUploadTooltip') }}</span>
-          </template>
-          <div class="control-btn image-upload-btn" :class="{
-            'active': uploadedImages.length > 0,
-            'disabled': !isImageUploadEnabledByAgent
-          }" @click.stop="isImageUploadEnabledByAgent && triggerImageUpload()">
-            <svg width="18" height="18" viewBox="0 0 1024 1024" fill="currentColor" class="control-icon">
-              <path
-                d="M896 128H128c-35.3 0-64 28.7-64 64v640c0 35.3 28.7 64 64 64h768c35.3 0 64-28.7 64-64V192c0-35.3-28.7-64-64-64zM128 832V192h768l0.1 640H128z" />
-              <path d="M352 448a96 96 0 1 0 0-192 96 96 0 0 0 0 192z" />
-              <path d="M128 768l224-288 160 160 192-256L896 640v128H128z" />
-            </svg>
-            <span v-if="uploadedImages.length > 0" class="image-count">{{ uploadedImages.length }}</span>
-          </div>
-        </t-tooltip>
+          <!-- Agent 选择器下拉菜单 -->
+          <AgentSelector :visible="showAgentModeSelector" :anchorEl="agentModeButtonRef"
+            :currentAgentId="selectedAgentId" :agents="enabledAgents" @close="closeAgentModeSelector"
+            @select="handleSelectAgent" />
 
-        <!-- 附件上传按钮 -->
-        <t-tooltip placement="top" theme="light" :popupProps="{ overlayClassName: 'input-field-tooltip' }">
-          <template #content>
-            <span>{{ uploadedAttachments.length > 0 ? $t('chat.attachmentWithCount', {
-              count: uploadedAttachments.length
-            }) : $t('chat.attachmentUploadTooltip') }}</span>
-          </template>
-          <div class="control-btn attachment-upload-btn" :class="{ 'active': uploadedAttachments.length > 0 }"
-            @click.stop="attachmentUploadRef?.triggerFileSelect()">
-            <!-- 回形针图标 -->
-            <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8"
-              stroke-linecap="round" stroke-linejoin="round" class="control-icon">
-              <path
-                d="M21.44 11.05l-9.19 9.19a6 6 0 0 1-8.49-8.49l9.19-9.19a4 4 0 0 1 5.66 5.66l-9.2 9.19a2 2 0 0 1-2.83-2.83l8.49-8.48" />
-            </svg>
-            <span v-if="uploadedAttachments.length > 0" class="attachment-count">{{ uploadedAttachments.length }}</span>
-          </div>
-        </t-tooltip>
-
-        <!-- @ 知识库/文件选择按钮 -->
-        <t-tooltip placement="top" theme="light" :popupProps="{ overlayClassName: 'input-field-tooltip' }">
-          <template #content>
-            <div v-if="isKnowledgeBaseDisabledByAgent" class="tooltip-with-link">
-              <span>{{ $t('input.kbDisabledByAgent') }}</span>
-              <a href="#" @click.prevent="handleGoToAgentSettings('knowledge')">{{ $t('input.goToAgentSettings') }}</a>
-            </div>
-            <span v-else>{{ allSelectedItems.length > 0 ? $t('input.knowledgeBaseWithCount', {
-              count:
-                allSelectedItems.length
-            }) : $t('input.knowledgeBase') }}</span>
-          </template>
-          <div ref="atButtonRef" class="control-btn kb-btn" data-guide="chat-kb-mention" :class="{
-            'active': allSelectedItems.length > 0,
-            'disabled': isKnowledgeBaseDisabledByAgent
-          }" @click.stop @mousedown.prevent="triggerMention">
-            <svg width="18" height="18" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg"
-              class="control-icon at-icon">
-              <circle cx="10" cy="10" r="3.5" stroke="currentColor" stroke-width="1.8" />
-              <path
-                d="M13.5 10V11.5C13.5 12.163 13.7634 12.7989 14.2322 13.2678C14.7011 13.7366 15.337 14 16 14C16.663 14 17.2989 13.7366 17.7678 13.2678C18.2366 12.7989 18.5 12.163 18.5 11.5V10C18.5 7.74566 17.6045 5.58365 16.0104 3.98959C14.4163 2.39553 12.2543 1.5 10 1.5C7.74566 1.5 5.58365 2.39553 3.98959 3.98959C2.39553 5.58365 1.5 7.74566 1.5 10C1.5 12.2543 2.39553 14.4163 3.98959 16.0104C5.58365 17.6045 7.74566 18.5 10 18.5H12"
-                stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round" />
-            </svg>
-            <span v-if="allSelectedItems.length > 0" class="kb-count">{{ allSelectedItems.length }}</span>
-          </div>
-        </t-tooltip>
-
-        <!-- 模型显示 -->
-        <t-tooltip :content="isModelLockedByAgent ? $t('input.modelLockedByAgent') : ''"
-          :disabled="!isModelLockedByAgent">
-          <div class="model-display" :class="{ 'agent-controlled': isModelLockedByAgent }">
-            <div ref="modelButtonRef" class="model-selector-trigger" @click.stop="toggleModelSelector">
-              <span class="model-selector-name">
-                {{ selectedModelDisplayName }}
-              </span>
-              <svg width="12" height="12" viewBox="0 0 12 12" fill="currentColor" class="model-dropdown-arrow"
-                :class="{ 'rotate': showModelSelector }">
-                <path d="M2.5 4.5L6 8L9.5 4.5H2.5Z" />
+          <!-- WebSearch 开关按钮 -->
+          <t-tooltip placement="top" theme="light" :popupProps="{ overlayClassName: 'input-field-tooltip' }">
+            <template #content>
+              <div v-if="isWebSearchDisabledByAgent" class="tooltip-with-link">
+                <span>{{ $t('input.webSearchDisabledByAgent') }}</span>
+                <a href="#" @click.prevent="handleGoToAgentSettings('websearch')">{{ $t('input.goToAgentSettings')
+                  }}</a>
+              </div>
+              <span v-else-if="isWebSearchConfigured">{{ isWebSearchEnabled ? $t('input.webSearch.toggleOff') :
+                $t('input.webSearch.toggleOn') }}</span>
+              <div v-else class="tooltip-with-link">
+                <span>{{ $t('input.webSearch.notConfigured') }}</span>
+                <a href="#" @click.prevent="handleGoToWebSearchSettings">{{ $t('input.goToSettings') }}</a>
+              </div>
+            </template>
+            <div class="control-btn websearch-btn" :class="{
+              'active': isWebSearchEnabled && isWebSearchConfigured,
+              'disabled': !isWebSearchConfigured || isWebSearchDisabledByAgent
+            }" @click.stop="toggleWebSearch">
+              <svg width="18" height="18" viewBox="0 0 18 18" fill="none" xmlns="http://www.w3.org/2000/svg"
+                class="control-icon websearch-icon" :class="{ 'active': isWebSearchEnabled && isWebSearchConfigured }">
+                <circle cx="9" cy="9" r="7" stroke="currentColor" stroke-width="1.2" fill="none" />
+                <path d="M 9 2 A 3.5 7 0 0 0 9 16" stroke="currentColor" stroke-width="1.2" fill="none" />
+                <path d="M 9 2 A 3.5 7 0 0 1 9 16" stroke="currentColor" stroke-width="1.2" fill="none" />
+                <line x1="2.94" y1="5.5" x2="15.06" y2="5.5" stroke="currentColor" stroke-width="1.2"
+                  stroke-linecap="round" />
+                <line x1="2.94" y1="12.5" x2="15.06" y2="12.5" stroke="currentColor" stroke-width="1.2"
+                  stroke-linecap="round" />
               </svg>
             </div>
-          </div>
-        </t-tooltip>
-      </div>
+          </t-tooltip>
 
-      <Teleport to="body">
-        <div v-if="showModelSelector" class="model-selector-overlay" @click="closeModelSelector">
-          <div class="model-selector-dropdown" :style="modelDropdownStyle" @click.stop>
-            <div class="model-selector-header">
-              <span>{{ $t('conversationSettings.models.chatGroupLabel') }}</span>
-              <button class="model-selector-add" type="button" @click="handleModelChange('__add_model__')">
-                <span class="add-icon">+</span>
-                <span class="add-text">{{ $t('input.addModel') }}</span>
-              </button>
-            </div>
-            <div class="model-selector-content">
-              <div v-for="model in availableModels" :key="model.id" class="model-option"
-                :class="{ selected: model.id === selectedModelId }" @click="handleModelChange(model.id || '')">
-                <div class="model-option-main">
-                  <span class="model-option-name">{{ modelDisplayName(model) }}</span>
-                  <span v-if="model.display_name" class="model-option-raw-name">{{ model.name }}</span>
-                  <span v-if="model.source === 'remote'" class="model-badge-remote">{{ $t('input.remote') }}</span>
-                  <span v-else-if="model.parameters?.parameter_size" class="model-badge-local">
-                    {{ model.parameters.parameter_size }}
-                  </span>
-                </div>
-                <div v-if="model.description" class="model-option-desc">
-                  {{ model.description }}
-                </div>
+          <!-- 图片上传按钮 -->
+          <t-tooltip placement="top" theme="light" :popupProps="{ overlayClassName: 'input-field-tooltip' }">
+            <template #content>
+              <div v-if="!isImageUploadEnabledByAgent" class="tooltip-with-link">
+                <span>{{ $t('input.imageUploadDisabledByAgent') }}</span>
+                <a href="#" @click.prevent="handleGoToAgentSettings('model')">{{ $t('input.goToAgentSettings') }}</a>
               </div>
-              <div v-if="availableModels.length === 0" class="model-option empty">
-                {{ $t('input.noModel') }}
+              <span v-else>{{ $t('chat.imageUploadTooltip') }}</span>
+            </template>
+            <div class="control-btn image-upload-btn" :class="{
+              'active': uploadedImages.length > 0,
+              'disabled': !isImageUploadEnabledByAgent
+            }" @click.stop="isImageUploadEnabledByAgent && triggerImageUpload()">
+              <svg width="18" height="18" viewBox="0 0 1024 1024" fill="currentColor" class="control-icon">
+                <path
+                  d="M896 128H128c-35.3 0-64 28.7-64 64v640c0 35.3 28.7 64 64 64h768c35.3 0 64-28.7 64-64V192c0-35.3-28.7-64-64-64zM128 832V192h768l0.1 640H128z" />
+                <path d="M352 448a96 96 0 1 0 0-192 96 96 0 0 0 0 192z" />
+                <path d="M128 768l224-288 160 160 192-256L896 640v128H128z" />
+              </svg>
+              <span v-if="uploadedImages.length > 0" class="image-count">{{ uploadedImages.length }}</span>
+            </div>
+          </t-tooltip>
+
+          <!-- 附件上传按钮 -->
+          <t-tooltip placement="top" theme="light" :popupProps="{ overlayClassName: 'input-field-tooltip' }">
+            <template #content>
+              <span>{{ uploadedAttachments.length > 0 ? $t('chat.attachmentWithCount', {
+                count: uploadedAttachments.length
+              }) : $t('chat.attachmentUploadTooltip') }}</span>
+            </template>
+            <div class="control-btn attachment-upload-btn" :class="{ 'active': uploadedAttachments.length > 0 }"
+              @click.stop="attachmentUploadRef?.triggerFileSelect()">
+              <!-- 回形针图标 -->
+              <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8"
+                stroke-linecap="round" stroke-linejoin="round" class="control-icon">
+                <path
+                  d="M21.44 11.05l-9.19 9.19a6 6 0 0 1-8.49-8.49l9.19-9.19a4 4 0 0 1 5.66 5.66l-9.2 9.19a2 2 0 0 1-2.83-2.83l8.49-8.48" />
+              </svg>
+              <span v-if="uploadedAttachments.length > 0" class="attachment-count">{{ uploadedAttachments.length
+                }}</span>
+            </div>
+          </t-tooltip>
+
+          <!-- @ 知识库/文件选择按钮 -->
+          <t-tooltip placement="top" theme="light" :popupProps="{ overlayClassName: 'input-field-tooltip' }">
+            <template #content>
+              <div v-if="isKnowledgeBaseDisabledByAgent" class="tooltip-with-link">
+                <span>{{ $t('input.kbDisabledByAgent') }}</span>
+                <a href="#" @click.prevent="handleGoToAgentSettings('knowledge')">{{ $t('input.goToAgentSettings')
+                  }}</a>
+              </div>
+              <span v-else>{{ allSelectedItems.length > 0 ? $t('input.knowledgeBaseWithCount', {
+                count:
+                  allSelectedItems.length
+              }) : $t('input.knowledgeBase') }}</span>
+            </template>
+            <div ref="atButtonRef" class="control-btn kb-btn" data-guide="chat-kb-mention" :class="{
+              'active': allSelectedItems.length > 0,
+              'disabled': isKnowledgeBaseDisabledByAgent
+            }" @click.stop @mousedown.prevent="triggerMention">
+              <svg width="18" height="18" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg"
+                class="control-icon at-icon">
+                <circle cx="10" cy="10" r="3.5" stroke="currentColor" stroke-width="1.8" />
+                <path
+                  d="M13.5 10V11.5C13.5 12.163 13.7634 12.7989 14.2322 13.2678C14.7011 13.7366 15.337 14 16 14C16.663 14 17.2989 13.7366 17.7678 13.2678C18.2366 12.7989 18.5 12.163 18.5 11.5V10C18.5 7.74566 17.6045 5.58365 16.0104 3.98959C14.4163 2.39553 12.2543 1.5 10 1.5C7.74566 1.5 5.58365 2.39553 3.98959 3.98959C2.39553 5.58365 1.5 7.74566 1.5 10C1.5 12.2543 2.39553 14.4163 3.98959 16.0104C5.58365 17.6045 7.74566 18.5 10 18.5H12"
+                  stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round" />
+              </svg>
+              <span v-if="allSelectedItems.length > 0" class="kb-count">{{ allSelectedItems.length }}</span>
+            </div>
+          </t-tooltip>
+
+          <!-- 模型显示 -->
+          <t-tooltip :content="isModelLockedByAgent ? $t('input.modelLockedByAgent') : ''"
+            :disabled="!isModelLockedByAgent">
+            <div class="model-display" :class="{ 'agent-controlled': isModelLockedByAgent }">
+              <div ref="modelButtonRef" class="model-selector-trigger" @click.stop="toggleModelSelector">
+                <span class="model-selector-name">
+                  {{ selectedModelDisplayName }}
+                </span>
+                <svg width="12" height="12" viewBox="0 0 12 12" fill="currentColor" class="model-dropdown-arrow"
+                  :class="{ 'rotate': showModelSelector }">
+                  <path d="M2.5 4.5L6 8L9.5 4.5H2.5Z" />
+                </svg>
+              </div>
+            </div>
+          </t-tooltip>
+        </div>
+
+        <Teleport to="body">
+          <div v-if="showModelSelector" class="model-selector-overlay" @click="closeModelSelector">
+            <div class="model-selector-dropdown" :style="modelDropdownStyle" @click.stop>
+              <div class="model-selector-header">
+                <span>{{ $t('conversationSettings.models.chatGroupLabel') }}</span>
+                <button class="model-selector-add" type="button" @click="handleModelChange('__add_model__')">
+                  <span class="add-icon">+</span>
+                  <span class="add-text">{{ $t('input.addModel') }}</span>
+                </button>
+              </div>
+              <div class="model-selector-content">
+                <div v-for="model in availableModels" :key="model.id" class="model-option"
+                  :class="{ selected: model.id === selectedModelId }" @click="handleModelChange(model.id || '')">
+                  <div class="model-option-main">
+                    <span class="model-option-name">{{ modelDisplayName(model) }}</span>
+                    <span v-if="model.display_name" class="model-option-raw-name">{{ model.name }}</span>
+                    <span v-if="model.source === 'remote'" class="model-badge-remote">{{ $t('input.remote') }}</span>
+                    <span v-else-if="model.parameters?.parameter_size" class="model-badge-local">
+                      {{ model.parameters.parameter_size }}
+                    </span>
+                  </div>
+                  <div v-if="model.description" class="model-option-desc">
+                    {{ model.description }}
+                  </div>
+                </div>
+                <div v-if="availableModels.length === 0" class="model-option empty">
+                  {{ $t('input.noModel') }}
+                </div>
               </div>
             </div>
           </div>
-        </div>
-      </Teleport>
+        </Teleport>
 
-      <!-- 右侧控制按钮组 -->
-      <div class="control-right">
-        <!-- 停止按钮（仅在回复中时显示） -->
-        <t-tooltip v-if="isReplying" :content="$t('input.stopGeneration')" placement="top">
-          <div @click="handleStop" class="control-btn stop-btn">
-            <svg width="16" height="16" viewBox="0 0 16 16" fill="currentColor">
-              <rect x="5" y="5" width="6" height="6" rx="1" />
-            </svg>
+        <!-- 右侧控制按钮组 -->
+        <div class="control-right">
+          <!-- 停止按钮（仅在回复中时显示） -->
+          <t-tooltip v-if="isReplying" :content="$t('input.stopGeneration')" placement="top">
+            <div @click="handleStop" class="control-btn stop-btn">
+              <svg width="16" height="16" viewBox="0 0 16 16" fill="currentColor">
+                <rect x="5" y="5" width="6" height="6" rx="1" />
+              </svg>
+            </div>
+          </t-tooltip>
+
+          <!-- 发送按钮 -->
+          <div v-if="!isReplying" @click="createSession(query)" class="control-btn send-btn" data-guide="chat-send"
+            :class="{ 'disabled': !query.length }">
+            <img src="../assets/img/sending-aircraft.svg" :alt="$t('input.send')" />
           </div>
-        </t-tooltip>
-
-        <!-- 发送按钮 -->
-        <div v-if="!isReplying" @click="createSession(query)" class="control-btn send-btn" data-guide="chat-send"
-          :class="{ 'disabled': !query.length }">
-          <img src="../assets/img/sending-aircraft.svg" :alt="$t('input.send')" />
         </div>
       </div>
-      </div>
     </div>
 
     <!-- Mention Selector -->
@@ -2392,8 +2396,8 @@ const getImgSrc = (url: string) => {
   max-width: 800px;
   background: var(--td-bg-color-container, #FFF);
   border-radius: 12px;
-  border: .5px solid var(--td-component-border, #E7E7E7);
-  box-shadow: 0 6px 6px 0 rgba(0, 0, 0, 0.04), 0 12px 12px -1px rgba(0, 0, 0, 0.08);
+  border: 1px solid var(--td-component-stroke, #dcdcdc);
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04), 0 8px 16px -4px rgba(0, 0, 0, 0.06);
 
   &:focus-within {
     border-color: var(--td-brand-color, #07C05F);
@@ -2407,7 +2411,7 @@ const getImgSrc = (url: string) => {
   align-items: center;
   gap: 5px;
   padding: 6px 12px 6px;
-  border-bottom: .5px solid var(--td-component-stroke, #e7e7e7);
+  border-bottom: 1px solid var(--td-component-stroke, #dcdcdc);
   background: var(--td-bg-color-container, #fff);
   border-radius: 11px 11px 0 0;
   /* 与 .rich-input-container 内缘上边圆角一致（12px - 1px 边框） */
diff --git a/frontend/src/components/SessionSidebarRow.vue b/frontend/src/components/SessionSidebarRow.vue
index bb4f6580..fcc0b995 100644
--- a/frontend/src/components/SessionSidebarRow.vue
+++ b/frontend/src/components/SessionSidebarRow.vue
@@ -21,27 +21,54 @@
       <t-icon v-if="item.is_pinned" name="pin" class="submenu_pin_icon" />
       <span class="submenu_title-text">{{ item.title }}</span>
     </span>
-    <t-dropdown
-      v-if="!batchMode"
-      :options="menuOptions"
-      placement="bottom-right"
-      trigger="click"
-      @click="emit('menu-click', $event)"
-    >
-      <div @click.stop class="menu-more-wrap">
+    <div v-if="!batchMode" class="session-row-menu-wrap" @click.stop>
+      <button
+        type="button"
+        class="menu-more-wrap"
+        aria-haspopup="menu"
+        :aria-expanded="menuOpen"
+        @click="toggleMenu"
+      >
         <t-icon name="ellipsis" class="menu-more" />
+      </button>
+      <div v-if="menuOpen" class="session-row-menu" role="menu">
+        <button
+          v-for="option in menuOptions"
+          :key="option.value"
+          type="button"
+          class="session-row-menu__item"
+          :class="{ 'session-row-menu__item--error': option.theme === 'error' }"
+          role="menuitem"
+          @click="handleMenuClick(option)"
+        >
+          <component
+            :is="option.prefixIcon"
+            v-if="option.prefixIcon"
+            class="session-row-menu__icon"
+          />
+          <span class="session-row-menu__text">{{ option.content }}</span>
+        </button>
       </div>
-    </t-dropdown>
+    </div>
   </div>
 </template>
 
 <script setup lang="ts">
+import { onBeforeUnmount, ref } from 'vue'
+
+interface SessionMenuOption {
+  content: string
+  value: string
+  theme?: 'default' | 'success' | 'warning' | 'error' | 'primary'
+  prefixIcon?: any
+}
+
 defineProps<{
   item: { id: string; path: string; title: string; is_pinned?: boolean }
   batchMode: boolean
   activePath: string
   selectedIds: string[]
-  menuOptions: any[]
+  menuOptions: SessionMenuOption[]
   /** 渠道文件夹下的会话（样式与聊天区会话共用文案列对齐） */
   nested?: boolean
 }>()
@@ -53,4 +80,104 @@ const emit = defineEmits<{
   (e: 'hover-in'): void
   (e: 'hover-out'): void
 }>()
+
+const menuOpen = ref(false)
+
+const closeMenu = (): void => {
+  menuOpen.value = false
+  document.removeEventListener('click', closeMenu)
+}
+
+const toggleMenu = (): void => {
+  menuOpen.value = !menuOpen.value
+  if (menuOpen.value) {
+    document.addEventListener('click', closeMenu)
+  } else {
+    document.removeEventListener('click', closeMenu)
+  }
+}
+
+const handleMenuClick = (option: SessionMenuOption): void => {
+  closeMenu()
+  emit('menu-click', { value: option.value })
+}
+
+onBeforeUnmount(() => {
+  document.removeEventListener('click', closeMenu)
+})
 </script>
+
+<style scoped lang="less">
+.submenu_item {
+  position: relative;
+}
+
+.session-row-menu-wrap {
+  position: relative;
+  flex: 0 0 auto;
+}
+
+.menu-more-wrap {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 24px;
+  height: 24px;
+  padding: 0;
+  border: 0;
+  border-radius: 6px;
+  color: inherit;
+  background: transparent;
+  cursor: pointer;
+}
+
+.session-row-menu {
+  position: absolute;
+  top: calc(100% + 4px);
+  right: 0;
+  z-index: 30;
+  min-width: 132px;
+  padding: 4px;
+  border: 1px solid var(--td-component-stroke);
+  border-radius: 6px;
+  background: var(--td-bg-color-container);
+  box-shadow: var(--td-shadow-2);
+}
+
+.session-row-menu__item {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  width: 100%;
+  min-height: 32px;
+  padding: 0 10px;
+  border: 0;
+  border-radius: 4px;
+  color: var(--td-text-color-primary);
+  background: transparent;
+  font-size: 14px;
+  line-height: 20px;
+  text-align: left;
+  cursor: pointer;
+
+  &:hover {
+    background: var(--td-bg-color-container-hover);
+  }
+}
+
+.session-row-menu__item--error {
+  color: var(--td-error-color);
+}
+
+.session-row-menu__icon {
+  flex: 0 0 auto;
+  display: inline-flex;
+}
+
+.session-row-menu__text {
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+</style>
diff --git a/frontend/src/components/menu.vue b/frontend/src/components/menu.vue
index dda6644f..ee3c0792 100644
--- a/frontend/src/components/menu.vue
+++ b/frontend/src/components/menu.vue
@@ -114,24 +114,20 @@
                 <!-- 其他来源（IM / 网页嵌入）：置顶一行入口，默认收起 -->
                 <div v-if="visibleChannelBuckets.length" class="session-channels-section">
                     <div class="timeline_header timeline_header--collapsible session-list-row session-list-row--flat"
-                        role="button" tabindex="0"
-                        @click="toggleChannelsSection"
-                        @keydown.enter.prevent="toggleChannelsSection"
-                        @keydown.space.prevent="toggleChannelsSection">
+                        role="button" tabindex="0" @click="toggleChannelsSection"
+                        @keydown.enter.prevent="toggleChannelsSection" @keydown.space.prevent="toggleChannelsSection">
                         <span class="session-list-row__body">
                             <span class="session-header-text">
                                 <span class="timeline_header-label">{{ t('menu.otherSources') }}</span>
                                 <t-icon class="timeline_header-chevron"
-                                    :name="channelsSectionCollapsed ? 'chevron-right' : 'chevron-down'"
-                                    size="10px" />
+                                    :name="channelsSectionCollapsed ? 'chevron-right' : 'chevron-down'" size="10px" />
                             </span>
                         </span>
                     </div>
                     <template v-if="!channelsSectionCollapsed">
                         <template v-for="bucket in visibleChannelBuckets" :key="bucket.key">
-                            <div class="session-folder-header session-list-row session-list-row--flat"
-                                role="button" tabindex="0"
-                                @click="toggleSessionGroup(bucket.key)"
+                            <div class="session-folder-header session-list-row session-list-row--flat" role="button"
+                                tabindex="0" @click="toggleSessionGroup(bucket.key)"
                                 @keydown.enter.prevent="toggleSessionGroup(bucket.key)"
                                 @keydown.space.prevent="toggleSessionGroup(bucket.key)">
                                 <span class="session-list-row__body">
@@ -151,8 +147,7 @@
                                 </span>
                             </div>
                             <template v-if="!isSessionGroupCollapsed(bucket.key)">
-                                <div v-if="bucket.loading && bucket.items.length === 0"
-                                    class="session-folder-loading">
+                                <div v-if="bucket.loading && bucket.items.length === 0" class="session-folder-loading">
                                     <div class="session-list-row session-list-row--flat">
                                         <span class="session-list-row__body">
                                             <t-loading size="small" />
@@ -163,14 +158,14 @@
                                     class="submenu_item_p session-chat-row session-folder-item">
                                     <div class="session-list-row session-list-row--flat">
                                         <div class="session-list-row__body">
-                                    <SessionSidebarRow :item="subitem" :batch-mode="batchMode"
-                                        :active-path="currentSecondpath" :selected-ids="batchSelectedIds"
-                                        :menu-options="buildSessionMenuOptions(subitem)"
-                                        @navigate="gotopage(subitem.path)"
-                                        @toggle-select="toggleBatchSelect(subitem.id)"
-                                        @menu-click="handleSessionMenuClick($event, subitem)"
-                                        @hover-in="mouseenteBotDownr(subitem.id)"
-                                        @hover-out="mouseleaveBotDown" />
+                                            <SessionSidebarRow :item="subitem" :batch-mode="batchMode"
+                                                :active-path="currentSecondpath" :selected-ids="batchSelectedIds"
+                                                :menu-options="buildSessionMenuOptions(subitem)"
+                                                @navigate="gotopage(subitem.path)"
+                                                @toggle-select="toggleBatchSelect(subitem.id)"
+                                                @menu-click="handleSessionMenuClick($event, subitem)"
+                                                @hover-in="mouseenteBotDownr(subitem.id)"
+                                                @hover-out="mouseleaveBotDown" />
                                         </div>
                                     </div>
                                 </div>
@@ -181,36 +176,38 @@
 
                 <!-- 网页对话：按日期分组，直接展示 -->
                 <div class="session-web-list">
-                <template v-if="webBucket?.loaded && chatGroupedSessions.length === 0">
-                    <div class="submenu_empty">{{ t('menu.noSessions') }}</div>
-                </template>
-                <template v-else>
-                    <template v-for="group in chatGroupedSessions" :key="group.key">
-                        <div v-if="group.label" class="timeline_header session-list-row session-list-row--flat">
-                            <span class="session-list-row__body">
-                                <span class="timeline_header-label">{{ group.label }}</span>
-                            </span>
-                        </div>
-                        <div v-for="subitem in group.items" :key="subitem.id" class="submenu_item_p session-chat-row">
-                            <div class="session-list-row session-list-row--flat">
-                                <div class="session-list-row__body">
-                            <SessionSidebarRow :item="subitem" :batch-mode="batchMode"
-                                :active-path="currentSecondpath" :selected-ids="batchSelectedIds"
-                                :menu-options="buildSessionMenuOptions(subitem)"
-                                @navigate="gotopage(subitem.path)" @toggle-select="toggleBatchSelect(subitem.id)"
-                                @menu-click="handleSessionMenuClick($event, subitem)"
-                                @hover-in="mouseenteBotDownr(subitem.id)" @hover-out="mouseleaveBotDown" />
+                    <template v-if="webBucket?.loaded && chatGroupedSessions.length === 0">
+                        <div class="submenu_empty">{{ t('menu.noSessions') }}</div>
+                    </template>
+                    <template v-else>
+                        <template v-for="group in chatGroupedSessions" :key="group.key">
+                            <div v-if="group.label" class="timeline_header session-list-row session-list-row--flat">
+                                <span class="session-list-row__body">
+                                    <span class="timeline_header-label">{{ group.label }}</span>
+                                </span>
+                            </div>
+                            <div v-for="subitem in group.items" :key="subitem.id"
+                                class="submenu_item_p session-chat-row">
+                                <div class="session-list-row session-list-row--flat">
+                                    <div class="session-list-row__body">
+                                        <SessionSidebarRow :item="subitem" :batch-mode="batchMode"
+                                            :active-path="currentSecondpath" :selected-ids="batchSelectedIds"
+                                            :menu-options="buildSessionMenuOptions(subitem)"
+                                            @navigate="gotopage(subitem.path)"
+                                            @toggle-select="toggleBatchSelect(subitem.id)"
+                                            @menu-click="handleSessionMenuClick($event, subitem)"
+                                            @hover-in="mouseenteBotDownr(subitem.id)" @hover-out="mouseleaveBotDown" />
+                                    </div>
                                 </div>
                             </div>
+                        </template>
+                        <div v-if="webBucket?.loading && chatGroupedSessions.length > 0"
+                            class="session-list-loading session-list-row session-list-row--flat">
+                            <span class="session-list-row__body">
+                                <t-loading size="small" />
+                            </span>
                         </div>
                     </template>
-                    <div v-if="webBucket?.loading && chatGroupedSessions.length > 0"
-                        class="session-list-loading session-list-row session-list-row--flat">
-                        <span class="session-list-row__body">
-                            <t-loading size="small" />
-                        </span>
-                    </div>
-                </template>
                 </div>
             </div>
 
@@ -1726,7 +1723,7 @@ const onDragHandleMouseDown = (e: MouseEvent) => {
         line-height: 20px;
         height: 100%;
         width: 100%;
-        padding: 4px 0;
+        padding: 6px 0;
         position: relative;
         min-width: 0;
         background: transparent;
diff --git a/frontend/src/composables/useEmbedChatSession.ts b/frontend/src/composables/useEmbedChatSession.ts
index badf4a80..c5fe81d7 100644
--- a/frontend/src/composables/useEmbedChatSession.ts
+++ b/frontend/src/composables/useEmbedChatSession.ts
@@ -112,6 +112,7 @@ export function useEmbedChatSession(options: {
 
   const {
     shouldRenderAssistantMessage,
+    shouldShowGlobalTypingIndicator,
     handleMsgList,
     processStreamChunk,
   } = useChatStreamHandler({
@@ -359,6 +360,7 @@ export function useEmbedChatSession(options: {
     userHasScrolledUp,
     isFirstEnter,
     shouldRenderAssistantMessage,
+    shouldShowGlobalTypingIndicator,
     getUserQuery,
     handleScroll,
     scrollToBottom,
diff --git a/frontend/src/views/creatChat/creatChat.vue b/frontend/src/views/creatChat/creatChat.vue
index dc31c042..9df6f16d 100644
--- a/frontend/src/views/creatChat/creatChat.vue
+++ b/frontend/src/views/creatChat/creatChat.vue
@@ -8,30 +8,31 @@
             <div ref="sqContainerRef" class="suggested-questions-container">
                 <!-- 骨架屏占位 -->
                 <div v-if="sqLoading && suggestedQuestions.length === 0" class="suggested-questions-inner">
-                    <div class="suggested-questions-title"><t-skeleton animation="gradient" :row-col="[{ width: '120px', height: '18px' }]" /></div>
+                    <div class="suggested-questions-title"><t-skeleton animation="gradient"
+                            :row-col="[{ width: '120px', height: '18px' }]" /></div>
                     <div class="suggested-questions-grid">
-                        <div v-for="n in 6" :key="'sq-skel-'+n" class="suggested-question-card sq-card-skeleton">
-                            <t-skeleton animation="gradient" :row-col="[{ width: '100%', height: '14px', type: 'rect' }]" />
+                        <div v-for="n in 6" :key="'sq-skel-' + n" class="suggested-question-card sq-card-skeleton">
+                            <t-skeleton animation="gradient"
+                                :row-col="[{ width: '100%', height: '14px', type: 'rect' }]" />
                         </div>
                     </div>
                 </div>
-                <transition v-else appear name="sq-slide-fade" mode="out-in"
-                    @before-leave="onBeforeLeave"
-                    @after-leave="onAfterLeave"
-                    @enter="onEnter"
-                    @after-enter="onQuestionsEntered"
-                >
+                <transition v-else appear name="sq-slide-fade" mode="out-in" @before-leave="onBeforeLeave"
+                    @after-leave="onAfterLeave" @enter="onEnter" @after-enter="onQuestionsEntered">
                     <div v-if="suggestedQuestions.length > 0" :key="sqRenderKey" class="suggested-questions-inner">
-                        <div class="suggested-questions-title">{{ $t('chat.suggestedQuestions') }}</div>
+                        <div class="suggested-questions-title-row">
+                            <div class="suggested-questions-title">{{ $t('chat.suggestedQuestions') }}</div>
+                            <t-button variant="text" shape="square" size="small" class="suggested-questions-refresh"
+                                :loading="sqLoading" :title="$t('chat.refreshSuggestedQuestions')"
+                                @click="fetchSuggestedQuestions">
+                                <template #icon><t-icon name="refresh" /></template>
+                            </t-button>
+                        </div>
                         <div class="suggested-questions-grid">
-                            <div
-                                v-for="(item, index) in suggestedQuestions"
-                                :key="item.question"
-                                class="suggested-question-card"
-                                :class="{ 'sq-card-visible': sqCardsRevealed }"
+                            <div v-for="(item, index) in suggestedQuestions" :key="item.question"
+                                class="suggested-question-card" :class="{ 'sq-card-visible': sqCardsRevealed }"
                                 :style="{ transitionDelay: sqCardsRevealed ? `${index * 50}ms` : '0ms' }"
-                                @click="handleSuggestedQuestionClick(item.question)"
-                            >
+                                @click="handleSuggestedQuestionClick(item.question)">
                                 <span class="suggested-question-text">{{ item.question }}</span>
                                 <span v-if="item.source === 'faq'" class="suggested-question-badge faq">FAQ</span>
                             </div>
@@ -42,18 +43,13 @@
             <InputField ref="inputFieldRef" @send-msg="sendMsg"></InputField>
         </div>
     </div>
-    
+
     <ContextualGuide tour="chat" :when="showChatContextualGuide" />
 
     <!-- 知识库编辑器（创建/编辑统一组件） -->
-    <KnowledgeBaseEditorModal 
-      :visible="uiStore.showKBEditorModal"
-      :mode="uiStore.kbEditorMode"
-      :kb-id="uiStore.currentKBId || undefined"
-      :initial-type="uiStore.kbEditorType"
-      @update:visible="(val) => val ? null : uiStore.closeKBEditor()"
-      @success="handleKBEditorSuccess"
-    />
+    <KnowledgeBaseEditorModal :visible="uiStore.showKBEditorModal" :mode="uiStore.kbEditorMode"
+        :kb-id="uiStore.currentKBId || undefined" :initial-type="uiStore.kbEditorType"
+        @update:visible="(val) => val ? null : uiStore.closeKBEditor()" @success="handleKBEditorSuccess" />
 </template>
 <script setup lang="ts">
 import { ref, watch, onMounted, nextTick, computed } from 'vue';
@@ -80,7 +76,7 @@ const { t } = useI18n();
 const { navigateToKnowledgeBaseList } = useKnowledgeBaseCreationNavigation();
 
 const showChatContextualGuide = computed(() => {
-  return route.name === 'globalCreatChat' || route.name === 'kbCreatChat';
+    return route.name === 'globalCreatChat' || route.name === 'kbCreatChat';
 });
 
 // ===== 推荐问题 =====
@@ -136,7 +132,7 @@ const onQuestionsEntered = () => {
 
 const fetchSuggestedQuestions = async () => {
     const fetchId = ++suggestedQuestionsFetchId;
-    if (suggestedQuestions.value.length === 0) sqLoading.value = true;
+    sqLoading.value = true;
     try {
         const agentId = settingsStore.selectedAgentId;
         if (!agentId) return;
@@ -193,7 +189,7 @@ async function createNewSession(value: string, modelId: string, mentionedItems:
 
     // 构建 session 数据，包含 Agent 配置
     const sessionData: any = {};
-    
+
     // 添加 Agent 配置（知识库信息在 agent_config 中）
     sessionData.agent_config = {
         enabled: true,
@@ -220,11 +216,11 @@ async function createNewSession(value: string, modelId: string, mentionedItems:
 
 const navigateToSession = async (sessionId: string, value: string, modelId: string, mentionedItems: any[], imageFiles: any[] = [], attachmentFiles: any[] = []) => {
     const now = new Date().toISOString();
-    let obj = { 
-        title: t('createChat.newSessionTitle'), 
-        path: `chat/${sessionId}`, 
-        id: sessionId, 
-        isMore: false, 
+    let obj = {
+        title: t('createChat.newSessionTitle'),
+        path: `chat/${sessionId}`,
+        id: sessionId,
+        isMore: false,
         isNoTitle: true,
         created_at: now,
         updated_at: now
@@ -300,8 +296,13 @@ const handleKBEditorSuccess = (kbId: string) => {
 }
 
 @keyframes skeletonFadeIn {
-    from { opacity: 0; }
-    to { opacity: 1; }
+    from {
+        opacity: 0;
+    }
+
+    to {
+        opacity: 1;
+    }
 }
 
 .suggested-questions-inner {
@@ -315,28 +316,47 @@ const handleKBEditorSuccess = (kbId: string) => {
 // 容器整体过渡：淡入 + 轻微上滑
 .sq-slide-fade-enter-active {
     transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1),
-                transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
+        transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
 }
+
 .sq-slide-fade-leave-active {
     transition: opacity 0.15s cubic-bezier(0.4, 0, 1, 1),
-                transform 0.15s cubic-bezier(0.4, 0, 1, 1);
+        transform 0.15s cubic-bezier(0.4, 0, 1, 1);
 }
+
 .sq-slide-fade-enter-from {
     opacity: 0;
     transform: translateY(10px);
 }
+
 .sq-slide-fade-leave-to {
     opacity: 0;
     transform: translateY(-4px);
 }
 
+.suggested-questions-title-row {
+    display: flex;
+    align-items: center;
+    gap: 2px;
+    margin-bottom: 12px;
+}
+
 .suggested-questions-title {
     font-size: 14px;
     color: var(--td-text-color-secondary);
-    margin-bottom: 12px;
+    margin-bottom: 0;
     font-weight: 500;
 }
 
+.suggested-questions-refresh {
+    flex-shrink: 0;
+    color: var(--td-text-color-secondary);
+
+    &:hover:not(.t-is-disabled) {
+        color: var(--td-text-color-primary);
+    }
+}
+
 .suggested-questions-grid {
     display: flex;
     flex-wrap: wrap;
@@ -358,10 +378,10 @@ const handleKBEditorSuccess = (kbId: string) => {
     opacity: 0;
     transform: translateY(8px) scale(0.97);
     transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1),
-                transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
-                border-color 0.2s ease,
-                background 0.2s ease,
-                box-shadow 0.2s ease;
+        transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
+        border-color 0.2s ease,
+        background 0.2s ease,
+        box-shadow 0.2s ease;
 
     &.sq-card-skeleton {
         opacity: 1;
@@ -375,19 +395,38 @@ const handleKBEditorSuccess = (kbId: string) => {
         :deep(.t-skeleton) {
             width: 100%;
         }
+
         :deep(.t-skeleton__row) {
             margin: 0;
         }
+
         :deep(.t-skeleton__col) {
             border-radius: 4px;
         }
 
-        &:nth-child(1) { width: 132px; }
-        &:nth-child(2) { width: 168px; }
-        &:nth-child(3) { width: 116px; }
-        &:nth-child(4) { width: 152px; }
-        &:nth-child(5) { width: 124px; }
-        &:nth-child(6) { width: 144px; }
+        &:nth-child(1) {
+            width: 132px;
+        }
+
+        &:nth-child(2) {
+            width: 168px;
+        }
+
+        &:nth-child(3) {
+            width: 116px;
+        }
+
+        &:nth-child(4) {
+            width: 152px;
+        }
+
+        &:nth-child(5) {
+            width: 124px;
+        }
+
+        &:nth-child(6) {
+            width: 144px;
+        }
     }
 
     &.sq-card-visible {
@@ -443,6 +482,7 @@ const handleKBEditorSuccess = (kbId: string) => {
         width: 500px !important;
     }
 }
+
 @media (max-width: 750px) {
     .answers-input {
         transform: translateX(-250px);
@@ -452,6 +492,7 @@ const handleKBEditorSuccess = (kbId: string) => {
         width: 340px !important;
     }
 }
+
 @media (max-width: 600px) {
     .answers-input {
         transform: translateX(-250px);
@@ -461,7 +502,6 @@ const handleKBEditorSuccess = (kbId: string) => {
         width: 300px !important;
     }
 }
-
 </style>
 <style lang="less">
 .del-menu-popup {
diff --git a/frontend/src/views/knowledge/wiki/WikiBrowser.vue b/frontend/src/views/knowledge/wiki/WikiBrowser.vue
index 31843639..539f0c00 100644
--- a/frontend/src/views/knowledge/wiki/WikiBrowser.vue
+++ b/frontend/src/views/knowledge/wiki/WikiBrowser.vue
@@ -3988,6 +3988,8 @@ onUnmounted(() => {
   }
 }
 
+// Wiki reader styles are for the knowledge-base document surface only.
+// Chat answer Markdown styles are centralized in components/css/chat-markdown.less.
 .wiki-reader-body {
   line-height: 1.6;
   font-size: 14px;