diff --git a/channel/web/chat.html b/channel/web/chat.html
index be7379ec..b7a92492 100644
--- a/channel/web/chat.html
+++ b/channel/web/chat.html
@@ -829,11 +829,11 @@
                 <!-- VIEW: Knowledge                                         -->
                 <!-- ====================================================== -->
                 <div id="view-knowledge" class="view">
-                    <div class="flex-1 overflow-y-auto p-4 md:p-8 lg:p-10">
-                        <div class="w-full max-w-[1600px] mx-auto">
+                    <div class="flex-1 min-h-0 overflow-y-auto md:overflow-hidden p-4 md:p-8 lg:p-10 md:flex md:flex-col">
+                        <div class="w-full max-w-[1600px] mx-auto md:flex-1 md:min-h-0 md:flex md:flex-col">
 
                             <!-- Header -->
-                            <div class="flex flex-col sm:flex-row sm:items-center justify-between gap-3 mb-4 md:mb-6">
+                            <div class="flex flex-col sm:flex-row sm:items-center justify-between gap-3 mb-4 md:mb-6 md:flex-shrink-0">
                                 <div>
                                     <h2 class="text-xl font-bold text-slate-800 dark:text-slate-100" data-i18n="knowledge_title">知识库</h2>
                                     <p class="text-sm text-slate-500 dark:text-slate-400 mt-1" data-i18n="knowledge_desc">浏览和探索你的知识库</p>
@@ -841,19 +841,6 @@
                                 <div class="flex items-center gap-2">
                                     <span id="knowledge-stats" class="text-xs text-slate-400 dark:text-slate-500 hidden sm:inline"></span>
                                     <span id="knowledge-action-status" class="text-xs opacity-0 transition-opacity duration-200"></span>
-                                    <button onclick="createKnowledgeCategory()"
-                                            class="flex items-center gap-1.5 px-3 py-1.5 rounded-lg bg-primary-500 hover:bg-primary-600 text-white text-xs font-medium cursor-pointer transition-colors">
-                                        <i class="fas fa-folder-plus"></i><span data-i18n="knowledge_new_category">新建分类</span>
-                                    </button>
-                                    <button onclick="createKnowledgeDocument()"
-                                            class="flex items-center gap-1.5 px-3 py-1.5 rounded-lg border border-slate-200 dark:border-white/10 text-slate-600 dark:text-slate-300 hover:bg-slate-50 dark:hover:bg-white/5 text-xs font-medium cursor-pointer transition-colors">
-                                        <i class="fas fa-file-circle-plus"></i><span data-i18n="knowledge_new_document">新建文档</span>
-                                    </button>
-                                    <button onclick="selectKnowledgeImportFiles()"
-                                            class="flex items-center gap-1.5 px-3 py-1.5 rounded-lg border border-slate-200 dark:border-white/10 text-slate-600 dark:text-slate-300 hover:bg-slate-50 dark:hover:bg-white/5 text-xs font-medium cursor-pointer transition-colors">
-                                        <i class="fas fa-file-arrow-up"></i><span data-i18n="knowledge_import_documents">导入文档</span>
-                                    </button>
-                                    <input id="knowledge-import-input" type="file" class="hidden" multiple accept=".md,.txt,text/markdown,text/plain">
                                     <div class="flex items-center bg-slate-100 dark:bg-white/10 rounded-lg p-0.5">
                                         <button id="knowledge-tab-docs" onclick="switchKnowledgeTab('docs')"
                                                 class="knowledge-tab px-3 py-1.5 rounded-md text-xs font-medium cursor-pointer transition-colors duration-150 active">
@@ -864,6 +851,28 @@
                                             <i class="fas fa-diagram-project mr-1.5"></i><span data-i18n="knowledge_tab_graph">图谱</span>
                                         </button>
                                     </div>
+                                    <div id="knowledge-new-menu" class="relative">
+                                        <button onclick="toggleKnowledgeNewMenu(event)"
+                                                class="flex items-center gap-1.5 px-3 py-1.5 rounded-lg bg-primary-500 hover:bg-primary-600 text-white text-xs font-medium cursor-pointer transition-colors">
+                                            <i class="fas fa-plus"></i><span data-i18n="knowledge_new">新建</span><i class="fas fa-chevron-down text-[9px] ml-0.5"></i>
+                                        </button>
+                                        <div id="knowledge-new-menu-list"
+                                             class="hidden absolute right-0 mt-1.5 w-44 z-50 bg-white dark:bg-[#1A1A1A] border border-slate-200 dark:border-white/10 rounded-lg shadow-lg py-1">
+                                            <button onclick="createKnowledgeCategory(); closeKnowledgeNewMenu()"
+                                                    class="w-full flex items-center gap-2.5 px-3 py-2 text-xs text-slate-600 dark:text-slate-300 hover:bg-slate-50 dark:hover:bg-white/5 cursor-pointer transition-colors">
+                                                <i class="fas fa-folder-plus w-3.5 text-slate-400"></i><span data-i18n="knowledge_new_category">新建分类</span>
+                                            </button>
+                                            <button onclick="createKnowledgeDocument(); closeKnowledgeNewMenu()"
+                                                    class="w-full flex items-center gap-2.5 px-3 py-2 text-xs text-slate-600 dark:text-slate-300 hover:bg-slate-50 dark:hover:bg-white/5 cursor-pointer transition-colors">
+                                                <i class="fas fa-file-circle-plus w-3.5 text-slate-400"></i><span data-i18n="knowledge_new_document">新建文档</span>
+                                            </button>
+                                            <button onclick="selectKnowledgeImportFiles(); closeKnowledgeNewMenu()"
+                                                    class="w-full flex items-center gap-2.5 px-3 py-2 text-xs text-slate-600 dark:text-slate-300 hover:bg-slate-50 dark:hover:bg-white/5 cursor-pointer transition-colors">
+                                                <i class="fas fa-file-arrow-up w-3.5 text-slate-400"></i><span data-i18n="knowledge_import_documents">导入文档</span>
+                                            </button>
+                                        </div>
+                                    </div>
+                                    <input id="knowledge-import-input" type="file" class="hidden" multiple accept=".md,.txt,text/markdown,text/plain">
                                 </div>
                             </div>
 
@@ -886,12 +895,12 @@
                             </div>
 
                             <!-- Documents panel -->
-                            <div id="knowledge-panel-docs" class="hidden">
-                                <div class="flex flex-col md:flex-row gap-4 md:gap-6" style="min-height: calc(100vh - 220px)">
+                            <div id="knowledge-panel-docs" class="hidden md:flex-1 md:min-h-0">
+                                <div class="flex flex-col md:flex-row gap-4 md:gap-6 md:h-full">
                                     <!-- File tree -->
-                                    <div id="knowledge-sidebar" class="w-full md:w-72 lg:w-80 flex-shrink-0">
-                                        <div class="bg-white dark:bg-[#1A1A1A] rounded-xl border border-slate-200 dark:border-white/10 overflow-hidden">
-                                            <div class="px-4 py-3 border-b border-slate-200 dark:border-white/10">
+                                    <div id="knowledge-sidebar" class="w-full md:w-72 lg:w-80 flex-shrink-0 md:h-full">
+                                        <div class="bg-white dark:bg-[#1A1A1A] rounded-xl border border-slate-200 dark:border-white/10 overflow-hidden flex flex-col md:h-full">
+                                            <div class="px-4 py-3 border-b border-slate-200 dark:border-white/10 flex-shrink-0">
                                                 <div class="relative">
                                                     <i class="fas fa-search absolute left-3 top-1/2 -translate-y-1/2 text-slate-400 text-xs"></i>
                                                     <input id="knowledge-search" type="text" placeholder="Search..."
@@ -899,19 +908,19 @@
                                                            oninput="filterKnowledgeTree(this.value)">
                                                 </div>
                                             </div>
-                                            <div id="knowledge-tree" class="p-2 overflow-y-auto max-h-[50vh] md:max-h-[calc(100vh-300px)]"></div>
+                                            <div id="knowledge-tree" class="p-2 overflow-y-auto flex-1 max-h-[50vh] md:max-h-none"></div>
                                         </div>
                                     </div>
                                     <!-- Content viewer -->
-                                    <div class="flex-1 min-w-0">
+                                    <div class="flex-1 min-w-0 md:h-full">
                                         <div id="knowledge-content-placeholder"
-                                             class="flex flex-col items-center justify-center py-20 text-slate-400 dark:text-slate-500">
+                                             class="flex flex-col items-center justify-center py-20 md:h-full text-slate-400 dark:text-slate-500 bg-white dark:bg-[#1A1A1A] rounded-xl border border-slate-200 dark:border-white/10">
                                             <i class="fas fa-file-lines text-3xl mb-3 opacity-40"></i>
                                             <p class="text-sm" data-i18n="knowledge_select_hint">选择一个文档查看</p>
                                         </div>
-                                        <div id="knowledge-content-viewer" class="hidden">
-                                            <div class="bg-white dark:bg-[#1A1A1A] rounded-xl border border-slate-200 dark:border-white/10 overflow-hidden">
-                                                <div class="flex items-center gap-3 px-4 md:px-5 py-3 border-b border-slate-200 dark:border-white/10">
+                                        <div id="knowledge-content-viewer" class="hidden md:h-full">
+                                            <div class="bg-white dark:bg-[#1A1A1A] rounded-xl border border-slate-200 dark:border-white/10 overflow-hidden flex flex-col md:h-full">
+                                                <div class="flex items-center gap-3 px-4 md:px-5 py-3 border-b border-slate-200 dark:border-white/10 flex-shrink-0">
                                                     <button onclick="knowledgeMobileBack()" class="md:hidden p-1 -ml-1 text-slate-400 hover:text-slate-600 dark:hover:text-slate-300 cursor-pointer">
                                                         <i class="fas fa-arrow-left text-xs"></i>
                                                     </button>
@@ -920,8 +929,7 @@
                                                     <span id="knowledge-viewer-path" class="text-xs text-slate-400 dark:text-slate-500 ml-auto font-mono truncate hidden md:inline"></span>
                                                 </div>
                                                 <div id="knowledge-viewer-body"
-                                                     class="p-4 md:p-5 overflow-y-auto text-sm msg-content text-slate-700 dark:text-slate-200"
-                                                     style="max-height: calc(100vh - 280px)"></div>
+                                                     class="p-4 md:p-5 overflow-y-auto flex-1 max-h-[60vh] md:max-h-none text-sm msg-content text-slate-700 dark:text-slate-200"></div>
                                             </div>
                                         </div>
                                     </div>
@@ -1107,7 +1115,7 @@
                 <input id="knowledge-dialog-input" type="text"
                        class="w-full px-3 py-2 rounded-lg border border-slate-200 dark:border-slate-600 bg-slate-50 dark:bg-white/5 text-sm text-slate-800 dark:text-slate-100 focus:outline-none focus:border-primary-500">
                 <select id="knowledge-dialog-select"
-                        class="hidden w-full px-3 py-2 rounded-lg border border-slate-200 dark:border-slate-600 bg-slate-50 dark:bg-[#222] text-sm text-slate-800 dark:text-slate-100 focus:outline-none focus:border-primary-500"></select>
+                        class="hidden w-full pl-3 pr-8 py-2 rounded-lg border border-slate-200 dark:border-slate-600 bg-slate-50 dark:bg-[#222] text-sm text-slate-800 dark:text-slate-100 focus:outline-none focus:border-primary-500"></select>
                 <textarea id="knowledge-dialog-textarea" rows="8"
                           class="hidden w-full px-3 py-2 rounded-lg border border-slate-200 dark:border-slate-600 bg-slate-50 dark:bg-white/5 text-sm text-slate-800 dark:text-slate-100 focus:outline-none focus:border-primary-500 font-mono resize-y"></textarea>
                 <div id="knowledge-document-form" class="hidden space-y-3">
diff --git a/channel/web/static/js/console.js b/channel/web/static/js/console.js
index a76f6dc7..ff0648f3 100644
--- a/channel/web/static/js/console.js
+++ b/channel/web/static/js/console.js
@@ -93,6 +93,7 @@ const I18N = {
         knowledge_select_hint: '选择一个文档查看', knowledge_empty_hint: '暂无知识页面',
         knowledge_empty_guide: '在对话中发送文档、链接或主题给 Agent，它会自动整理到你的知识库中。',
         knowledge_go_chat: '开始对话',
+        knowledge_new: '新建',
         knowledge_new_category: '新建分类',
         knowledge_new_document: '新建文档',
         knowledge_import_documents: '导入文档',
@@ -336,9 +337,10 @@ const I18N = {
         knowledge_select_hint: 'Select a document to view', knowledge_empty_hint: 'No knowledge pages yet',
         knowledge_empty_guide: 'Send documents, links or topics to the agent in chat, and it will automatically organize them into your knowledge base.',
         knowledge_go_chat: 'Start a conversation',
-        knowledge_new_category: 'Category',
-        knowledge_new_document: 'Document',
-        knowledge_import_documents: 'Import',
+        knowledge_new: 'New',
+        knowledge_new_category: 'New category',
+        knowledge_new_document: 'New document',
+        knowledge_import_documents: 'Import documents',
         welcome_subtitle: 'I can help you answer questions, manage your computer, create and execute skills, and keep growing through <br> long-term memory and a personal knowledge base.',
         example_sys_title: 'System', example_sys_text: 'Show me the files in the workspace',
         example_task_title: 'Scheduler', example_task_text: 'Remind me to check the server in 5 minutes',
@@ -8087,6 +8089,30 @@ function openKnowledgeDialog(options) {
     setTimeout(() => (options.type === 'select' ? select : (options.type === 'textarea' ? textarea : (options.type === 'document' ? documentFilename : input))).focus(), 0);
 }
 
+function closeKnowledgeNewMenu() {
+    const list = document.getElementById('knowledge-new-menu-list');
+    if (list) list.classList.add('hidden');
+    document.removeEventListener('click', _knowledgeNewMenuOutside, true);
+}
+
+function _knowledgeNewMenuOutside(event) {
+    const menu = document.getElementById('knowledge-new-menu');
+    if (menu && !menu.contains(event.target)) closeKnowledgeNewMenu();
+}
+
+function toggleKnowledgeNewMenu(event) {
+    if (event) event.stopPropagation();
+    const list = document.getElementById('knowledge-new-menu-list');
+    if (!list) return;
+    const willOpen = list.classList.contains('hidden');
+    list.classList.toggle('hidden');
+    if (willOpen) {
+        document.addEventListener('click', _knowledgeNewMenuOutside, true);
+    } else {
+        document.removeEventListener('click', _knowledgeNewMenuOutside, true);
+    }
+}
+
 function createKnowledgeCategory() {
     openKnowledgeDialog({
         title: currentLang === 'zh' ? '新建分类' : 'New category',