diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index f45154a..6a84b6f 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -10,6 +10,8 @@ import { BotDashboardModule } from './modules/dashboard/BotDashboardModule';
 import { pickLocale } from './i18n';
 import { appZhCn } from './i18n/app.zh-cn';
 import { appEn } from './i18n/app.en';
+import { LucentIconButton } from './components/lucent/LucentIconButton';
+import { LucentTooltip } from './components/lucent/LucentTooltip';
 import './App.css';
 
 function App() {
@@ -53,41 +55,45 @@ function App() {
 
             <div className="global-switches">
               <div className="switch-compact">
-                <button
-                  className={`switch-btn ${theme === 'dark' ? 'active' : ''}`}
-                  onClick={() => setTheme('dark')}
-                  title={t.dark}
-                  aria-label={t.dark}
-                >
-                  <MoonStar size={14} />
-                </button>
-                <button
-                  className={`switch-btn ${theme === 'light' ? 'active' : ''}`}
-                  onClick={() => setTheme('light')}
-                  title={t.light}
-                  aria-label={t.light}
-                >
-                  <SunMedium size={14} />
-                </button>
+                <LucentTooltip content={t.dark}>
+                  <button
+                    className={`switch-btn ${theme === 'dark' ? 'active' : ''}`}
+                    onClick={() => setTheme('dark')}
+                    aria-label={t.dark}
+                  >
+                    <MoonStar size={14} />
+                  </button>
+                </LucentTooltip>
+                <LucentTooltip content={t.light}>
+                  <button
+                    className={`switch-btn ${theme === 'light' ? 'active' : ''}`}
+                    onClick={() => setTheme('light')}
+                    aria-label={t.light}
+                  >
+                    <SunMedium size={14} />
+                  </button>
+                </LucentTooltip>
               </div>
 
               <div className="switch-compact">
-                <button
-                  className={`switch-btn switch-btn-lang ${locale === 'zh' ? 'active' : ''}`}
-                  onClick={() => setLocale('zh')}
-                  title={t.zh}
-                  aria-label={t.zh}
-                >
-                  <span>ZH</span>
-                </button>
-                <button
-                  className={`switch-btn switch-btn-lang ${locale === 'en' ? 'active' : ''}`}
-                  onClick={() => setLocale('en')}
-                  title={t.en}
-                  aria-label={t.en}
-                >
-                  <span>EN</span>
-                </button>
+                <LucentTooltip content={t.zh}>
+                  <button
+                    className={`switch-btn switch-btn-lang ${locale === 'zh' ? 'active' : ''}`}
+                    onClick={() => setLocale('zh')}
+                    aria-label={t.zh}
+                  >
+                    <span>ZH</span>
+                  </button>
+                </LucentTooltip>
+                <LucentTooltip content={t.en}>
+                  <button
+                    className={`switch-btn switch-btn-lang ${locale === 'en' ? 'active' : ''}`}
+                    onClick={() => setLocale('en')}
+                    aria-label={t.en}
+                  >
+                    <span>EN</span>
+                  </button>
+                </LucentTooltip>
               </div>
             </div>
           </div>
@@ -111,9 +117,9 @@ function App() {
                 <h3>{t.nav.images.title}</h3>
               </div>
               <div className="modal-title-actions">
-                <button className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowImageFactory(false)} title={t.close} aria-label={t.close}>
+                <LucentIconButton className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowImageFactory(false)} tooltip={t.close} aria-label={t.close}>
                   <X size={14} />
-                </button>
+                </LucentIconButton>
               </div>
             </div>
             <div className="app-modal-body">
@@ -131,9 +137,9 @@ function App() {
                 <h3>{t.nav.onboarding.title}</h3>
               </div>
               <div className="modal-title-actions">
-                <button className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowCreateWizard(false)} title={t.close} aria-label={t.close}>
+                <LucentIconButton className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowCreateWizard(false)} tooltip={t.close} aria-label={t.close}>
                   <X size={14} />
-                </button>
+                </LucentIconButton>
               </div>
             </div>
             <div className="app-modal-body">
diff --git a/frontend/src/components/lucent/LucentIconButton.tsx b/frontend/src/components/lucent/LucentIconButton.tsx
new file mode 100644
index 0000000..fbf1fbe
--- /dev/null
+++ b/frontend/src/components/lucent/LucentIconButton.tsx
@@ -0,0 +1,29 @@
+import type { ButtonHTMLAttributes, ReactNode } from 'react';
+import { LucentTooltip } from './LucentTooltip';
+
+interface LucentIconButtonProps extends Omit<ButtonHTMLAttributes<HTMLButtonElement>, 'title'> {
+  tooltip?: string;
+  tooltipSide?: 'top' | 'bottom';
+  children: ReactNode;
+}
+
+export function LucentIconButton({
+  tooltip,
+  tooltipSide = 'top',
+  children,
+  'aria-label': ariaLabel,
+  ...buttonProps
+}: LucentIconButtonProps) {
+  const tipText = String(tooltip || ariaLabel || '').trim();
+  return (
+    <LucentTooltip content={tipText} side={tooltipSide}>
+      <button
+        {...buttonProps}
+        aria-label={String(ariaLabel || tipText || '').trim() || undefined}
+      >
+        {children}
+      </button>
+    </LucentTooltip>
+  );
+}
+
diff --git a/frontend/src/components/lucent/LucentPromptProvider.tsx b/frontend/src/components/lucent/LucentPromptProvider.tsx
index eb0d1b8..cc278b6 100644
--- a/frontend/src/components/lucent/LucentPromptProvider.tsx
+++ b/frontend/src/components/lucent/LucentPromptProvider.tsx
@@ -1,6 +1,7 @@
 import { createContext, useCallback, useContext, useMemo, useRef, useState, type ReactNode } from 'react';
 import { AlertCircle, AlertTriangle, CheckCircle2, Info, X } from 'lucide-react';
 import { useAppStore } from '../../store/appStore';
+import { LucentIconButton } from './LucentIconButton';
 import './lucent-prompt.css';
 
 type PromptTone = 'info' | 'success' | 'warning' | 'error';
@@ -133,14 +134,14 @@ export function LucentPromptProvider({ children }: { children: ReactNode }) {
               <div className="lucent-confirm-title">
                 {confirmState.title || (locale === 'zh' ? '请确认操作' : 'Please Confirm')}
               </div>
-              <button
+              <LucentIconButton
                 className="lucent-confirm-close"
                 onClick={() => closeConfirm(false)}
                 aria-label={locale === 'zh' ? '关闭' : 'Close'}
-                title={locale === 'zh' ? '关闭' : 'Close'}
+                tooltip={locale === 'zh' ? '关闭' : 'Close'}
               >
                 <X size={14} />
-              </button>
+              </LucentIconButton>
             </div>
             <div className="lucent-confirm-message">{confirmState.message}</div>
             <div className="lucent-confirm-actions">
@@ -165,4 +166,3 @@ export function useLucentPrompt() {
   }
   return ctx;
 }
-
diff --git a/frontend/src/components/lucent/lucent-tooltip.css b/frontend/src/components/lucent/lucent-tooltip.css
index be8475c..767bf0c 100644
--- a/frontend/src/components/lucent/lucent-tooltip.css
+++ b/frontend/src/components/lucent/lucent-tooltip.css
@@ -21,19 +21,40 @@
   visibility: hidden;
   transition: opacity 0.14s ease, transform 0.14s ease, visibility 0.14s ease;
   z-index: 40;
+  box-shadow: 0 8px 18px rgba(6, 12, 24, 0.24);
+}
+
+.lucent-tooltip-bubble::after {
+  content: '';
+  position: absolute;
+  left: 50%;
+  transform: translateX(-50%) rotate(45deg);
+  width: 7px;
+  height: 7px;
+  border-right: 1px solid color-mix(in oklab, var(--line) 72%, var(--brand) 28%);
+  border-bottom: 1px solid color-mix(in oklab, var(--line) 72%, var(--brand) 28%);
+  background: color-mix(in oklab, var(--panel) 88%, #000 12%);
 }
 
 .lucent-tooltip-wrap.side-top .lucent-tooltip-bubble {
   bottom: calc(100% + 8px);
 }
 
+.lucent-tooltip-wrap.side-top .lucent-tooltip-bubble::after {
+  bottom: -5px;
+}
+
 .lucent-tooltip-wrap.side-bottom .lucent-tooltip-bubble {
   top: calc(100% + 8px);
 }
 
+.lucent-tooltip-wrap.side-bottom .lucent-tooltip-bubble::after {
+  top: -5px;
+  transform: translateX(-50%) rotate(225deg);
+}
+
 .lucent-tooltip-wrap:hover .lucent-tooltip-bubble,
 .lucent-tooltip-wrap:focus-within .lucent-tooltip-bubble {
   opacity: 1;
   visibility: visible;
 }
-
diff --git a/frontend/src/modules/dashboard/BotDashboardModule.css b/frontend/src/modules/dashboard/BotDashboardModule.css
index ce173d3..72360c9 100644
--- a/frontend/src/modules/dashboard/BotDashboardModule.css
+++ b/frontend/src/modules/dashboard/BotDashboardModule.css
@@ -99,19 +99,19 @@
 }
 
 .ops-bot-icon-btn {
-  width: 31px;
-  height: 31px;
+  width: 36px;
+  height: 36px;
   padding: 0;
-  border-radius: 8px;
+  border-radius: 10px;
   display: inline-flex;
   align-items: center;
   justify-content: center;
 }
 
 .ops-bot-icon-btn svg {
-  width: 13px;
-  height: 13px;
-  stroke-width: 2.2;
+  width: 17px;
+  height: 17px;
+  stroke-width: 2.1;
 }
 
 .ops-bot-actions .ops-bot-action-monitor {
diff --git a/frontend/src/modules/dashboard/BotDashboardModule.tsx b/frontend/src/modules/dashboard/BotDashboardModule.tsx
index fd9f9c9..efd3acf 100644
--- a/frontend/src/modules/dashboard/BotDashboardModule.tsx
+++ b/frontend/src/modules/dashboard/BotDashboardModule.tsx
@@ -17,7 +17,7 @@ import { pickLocale } from '../../i18n';
 import { dashboardZhCn } from '../../i18n/dashboard.zh-cn';
 import { dashboardEn } from '../../i18n/dashboard.en';
 import { useLucentPrompt } from '../../components/lucent/LucentPromptProvider';
-import { LucentTooltip } from '../../components/lucent/LucentTooltip';
+import { LucentIconButton } from '../../components/lucent/LucentIconButton';
 
 interface BotDashboardModuleProps {
   onOpenCreateWizard?: () => void;
@@ -905,7 +905,7 @@ export function BotDashboardModule({
                 <div className="ops-chat-meta-right">
                   <span className="mono">{formatClock(item.ts)}</span>
                   {collapsible ? (
-                    <button
+                    <LucentIconButton
                       className="ops-chat-expand-icon-btn"
                       onClick={() =>
                         setExpandedProgressByKey((prev) => ({
@@ -913,11 +913,11 @@ export function BotDashboardModule({
                           [itemKey]: !prev[itemKey],
                         }))
                       }
-                      title={expanded ? (isZh ? '收起' : 'Collapse') : (isZh ? '展开' : 'Expand')}
+                      tooltip={expanded ? (isZh ? '收起' : 'Collapse') : (isZh ? '展开' : 'Expand')}
                       aria-label={expanded ? (isZh ? '收起' : 'Collapse') : (isZh ? '展开' : 'Expand')}
                     >
                       {expanded ? '×' : '…'}
-                    </button>
+                    </LucentIconButton>
                   ) : null}
                 </div>
               </div>
@@ -1994,22 +1994,22 @@ export function BotDashboardModule({
           <div className="row-between">
             <h2 style={{ fontSize: 18 }}>{t.titleBots}</h2>
             <div className="ops-list-actions">
-              <button
+              <LucentIconButton
                 className="btn btn-secondary btn-sm icon-btn"
                 onClick={onOpenImageFactory}
-                title={t.manageImages}
+                tooltip={t.manageImages}
                 aria-label={t.manageImages}
               >
                 <Boxes size={14} />
-              </button>
-              <button
+              </LucentIconButton>
+              <LucentIconButton
                 className="btn btn-primary btn-sm icon-btn"
                 onClick={onOpenCreateWizard}
-                title={t.newBot}
+                tooltip={t.newBot}
                 aria-label={t.newBot}
               >
                 <Plus size={14} />
-              </button>
+              </LucentIconButton>
             </div>
           </div>
 
@@ -2032,75 +2032,71 @@ export function BotDashboardModule({
                   </div>
                   <div className="ops-bot-meta">{t.image}: <span className="mono">{bot.image_tag || '-'}</span></div>
                   <div className="ops-bot-actions">
-                    <LucentTooltip content={isZh ? '资源监测' : 'Resource Monitor'}>
-                      <button
-                        className="btn btn-sm ops-bot-icon-btn ops-bot-action-monitor"
-                        onClick={(e) => {
-                          e.stopPropagation();
-                          openResourceMonitor(bot.id);
-                        }}
-                        aria-label={isZh ? '资源监测' : 'Resource Monitor'}
-                      >
-                        <Gauge size={14} />
-                      </button>
-                    </LucentTooltip>
+                    <LucentIconButton
+                      className="btn btn-sm ops-bot-icon-btn ops-bot-action-monitor"
+                      onClick={(e) => {
+                        e.stopPropagation();
+                        openResourceMonitor(bot.id);
+                      }}
+                      tooltip={isZh ? '资源监测' : 'Resource Monitor'}
+                      aria-label={isZh ? '资源监测' : 'Resource Monitor'}
+                    >
+                      <Gauge size={14} />
+                    </LucentIconButton>
                     {bot.docker_status === 'RUNNING' ? (
-                      <LucentTooltip content={t.stop}>
-                        <button
-                          className="btn btn-sm ops-bot-icon-btn ops-bot-action-stop"
-                          disabled={isOperating}
-                          onClick={(e) => {
-                            e.stopPropagation();
-                            void stopBot(bot.id, bot.docker_status);
-                          }}
-                          aria-label={t.stop}
-                        >
-                          {isStopping ? (
-                            <span className="ops-control-pending">
-                              <span className="ops-control-dots" aria-hidden="true">
-                                <i />
-                                <i />
-                                <i />
-                              </span>
-                            </span>
-                          ) : <Square size={14} />}
-                        </button>
-                      </LucentTooltip>
-                    ) : (
-                      <LucentTooltip content={t.start}>
-                        <button
-                          className="btn btn-sm ops-bot-icon-btn ops-bot-action-start"
-                          disabled={isOperating}
-                          onClick={(e) => {
-                            e.stopPropagation();
-                            void startBot(bot.id, bot.docker_status);
-                          }}
-                          aria-label={t.start}
-                        >
-                          {isStarting ? (
-                            <span className="ops-control-pending">
-                              <span className="ops-control-dots" aria-hidden="true">
-                                <i />
-                                <i />
-                                <i />
-                              </span>
-                            </span>
-                          ) : <Power size={14} />}
-                        </button>
-                      </LucentTooltip>
-                    )}
-                    <LucentTooltip content={t.delete}>
-                      <button
-                        className="btn btn-sm ops-bot-icon-btn ops-bot-action-delete"
+                      <LucentIconButton
+                        className="btn btn-sm ops-bot-icon-btn ops-bot-action-stop"
+                        disabled={isOperating}
                         onClick={(e) => {
                           e.stopPropagation();
-                          void removeBot(bot.id);
+                          void stopBot(bot.id, bot.docker_status);
                         }}
-                        aria-label={t.delete}
+                        tooltip={t.stop}
+                        aria-label={t.stop}
                       >
-                        <Trash2 size={14} />
-                      </button>
-                    </LucentTooltip>
+                        {isStopping ? (
+                          <span className="ops-control-pending">
+                            <span className="ops-control-dots" aria-hidden="true">
+                              <i />
+                              <i />
+                              <i />
+                            </span>
+                          </span>
+                        ) : <Square size={14} />}
+                      </LucentIconButton>
+                    ) : (
+                      <LucentIconButton
+                        className="btn btn-sm ops-bot-icon-btn ops-bot-action-start"
+                        disabled={isOperating}
+                        onClick={(e) => {
+                          e.stopPropagation();
+                          void startBot(bot.id, bot.docker_status);
+                        }}
+                        tooltip={t.start}
+                        aria-label={t.start}
+                      >
+                        {isStarting ? (
+                          <span className="ops-control-pending">
+                            <span className="ops-control-dots" aria-hidden="true">
+                              <i />
+                              <i />
+                              <i />
+                            </span>
+                          </span>
+                        ) : <Power size={14} />}
+                      </LucentIconButton>
+                    )}
+                    <LucentIconButton
+                      className="btn btn-sm ops-bot-icon-btn ops-bot-action-delete"
+                      onClick={(e) => {
+                        e.stopPropagation();
+                        void removeBot(bot.id);
+                      }}
+                      tooltip={t.delete}
+                      aria-label={t.delete}
+                    >
+                      <Trash2 size={14} />
+                    </LucentIconButton>
                   </div>
                 </div>
               );
@@ -2163,15 +2159,15 @@ export function BotDashboardModule({
                         : t.disabledPlaceholder
                     }
                   />
-                  <button
+                  <LucentIconButton
                     className="btn btn-secondary icon-btn"
                     disabled={!canChat || isUploadingAttachments}
                     onClick={triggerPickAttachments}
-                    title={isUploadingAttachments ? t.uploadingFile : t.uploadFile}
+                    tooltip={isUploadingAttachments ? t.uploadingFile : t.uploadFile}
                     aria-label={isUploadingAttachments ? t.uploadingFile : t.uploadFile}
                   >
                     <Paperclip size={14} className={isUploadingAttachments ? 'animate-spin' : ''} />
-                  </button>
+                  </LucentIconButton>
                   <button
                     className="btn btn-primary"
                     disabled={!isChatEnabled || (!command.trim() && pendingAttachments.length === 0)}
@@ -2210,18 +2206,18 @@ export function BotDashboardModule({
                             </a>
                           );
                         })()}
-                        <button
+                        <LucentIconButton
                           className="icon-btn ops-chip-remove"
                           onClick={(event) => {
                             event.preventDefault();
                             event.stopPropagation();
                             setPendingAttachments((prev) => prev.filter((v) => v !== p));
                           }}
-                          title={t.removeAttachment}
+                          tooltip={t.removeAttachment}
                           aria-label={t.removeAttachment}
                         >
                           <X size={12} />
-                        </button>
+                        </LucentIconButton>
                       </span>
                     ))}
                   </div>
@@ -2254,24 +2250,24 @@ export function BotDashboardModule({
               <div className="row-between ops-runtime-head">
                 <h2 style={{ fontSize: 18 }}>{t.runtime}</h2>
                 <div className="ops-panel-tools" ref={runtimeMenuRef}>
-                  <button
+                  <LucentIconButton
                     className="btn btn-secondary btn-sm icon-btn"
                     onClick={() => setRuntimeViewMode((m) => (m === 'visual' ? 'text' : 'visual'))}
-                    title={runtimeViewMode === 'visual' ? (isZh ? '切换为文字面板' : 'Switch to text panel') : (isZh ? '切换为机器人面板' : 'Switch to bot panel')}
+                    tooltip={runtimeViewMode === 'visual' ? (isZh ? '切换为文字面板' : 'Switch to text panel') : (isZh ? '切换为机器人面板' : 'Switch to bot panel')}
                     aria-label={runtimeViewMode === 'visual' ? (isZh ? '切换为文字面板' : 'Switch to text panel') : (isZh ? '切换为机器人面板' : 'Switch to bot panel')}
                   >
                     <Repeat2 size={14} />
-                  </button>
-                  <button
+                  </LucentIconButton>
+                  <LucentIconButton
                     className="btn btn-secondary btn-sm icon-btn"
                     onClick={() => setRuntimeMenuOpen((v) => !v)}
-                    title={runtimeMoreLabel}
+                    tooltip={runtimeMoreLabel}
                     aria-label={runtimeMoreLabel}
                     aria-haspopup="menu"
                     aria-expanded={runtimeMenuOpen}
                   >
                     <EllipsisVertical size={14} />
-                  </button>
+                  </LucentIconButton>
                   {runtimeMenuOpen ? (
                     <div className="ops-more-menu" role="menu" aria-label={runtimeMoreLabel}>
                       <button
@@ -2412,14 +2408,14 @@ export function BotDashboardModule({
                       <div className="ops-runtime-action-inline">
                         <strong className="ops-runtime-action-text">{runtimeActionDisplay}</strong>
                         {runtimeActionHasMore ? (
-                          <button
+                          <LucentIconButton
                             className="ops-runtime-expand-btn"
                             onClick={() => setShowRuntimeActionModal(true)}
-                            title={isZh ? '查看完整内容' : 'Show full content'}
+                            tooltip={isZh ? '查看完整内容' : 'Show full content'}
                             aria-label={isZh ? '查看完整内容' : 'Show full content'}
                           >
                             …
-                          </button>
+                          </LucentIconButton>
                         ) : null}
                       </div>
                     </div>
@@ -2433,15 +2429,15 @@ export function BotDashboardModule({
                 <div className="section-mini-title">{t.workspaceOutputs}</div>
                 {workspaceError ? <div className="ops-empty-inline">{workspaceError}</div> : null}
                 <div className="workspace-toolbar">
-                  <button
+                  <LucentIconButton
                     className="workspace-refresh-icon-btn"
                     disabled={workspaceLoading || !selectedBotId}
                     onClick={() => void loadWorkspaceTree(selectedBot.id, workspaceCurrentPath)}
-                    title={lc.refreshHint}
+                    tooltip={lc.refreshHint}
                     aria-label={lc.refreshHint}
                   >
                     <RefreshCw size={14} className={workspaceLoading ? 'animate-spin' : ''} />
-                  </button>
+                  </LucentIconButton>
                   <label className="workspace-auto-switch" title={lc.autoRefresh}>
                     <span className="workspace-auto-switch-label">{lc.autoRefresh}</span>
                     <input
@@ -2487,14 +2483,14 @@ export function BotDashboardModule({
         </section>
       </div>
       {compactMode && isCompactMobile ? (
-        <button
+        <LucentIconButton
           className="ops-compact-fab-switch"
           onClick={() => setCompactPanelTab((v) => (v === 'chat' ? 'runtime' : 'chat'))}
-          title={compactPanelTab === 'chat' ? (isZh ? '切换到运行面板' : 'Switch to runtime') : (isZh ? '切换到对话面板' : 'Switch to chat')}
+          tooltip={compactPanelTab === 'chat' ? (isZh ? '切换到运行面板' : 'Switch to runtime') : (isZh ? '切换到对话面板' : 'Switch to chat')}
           aria-label={compactPanelTab === 'chat' ? (isZh ? '切换到运行面板' : 'Switch to runtime') : (isZh ? '切换到对话面板' : 'Switch to chat')}
         >
           {compactPanelTab === 'chat' ? <Activity size={18} /> : <MessageSquareText size={18} />}
-        </button>
+        </LucentIconButton>
       ) : null}
 
       {showResourceModal && (
@@ -2506,22 +2502,22 @@ export function BotDashboardModule({
                 <span className="modal-sub mono">{resourceBot?.name || resourceBotId}</span>
               </div>
               <div className="modal-title-actions">
-                <button
+                <LucentIconButton
                   className="btn btn-secondary btn-sm icon-btn"
                   onClick={() => void loadResourceSnapshot(resourceBotId)}
-                  title={isZh ? '立即刷新' : 'Refresh now'}
+                  tooltip={isZh ? '立即刷新' : 'Refresh now'}
                   aria-label={isZh ? '立即刷新' : 'Refresh now'}
                 >
                   <RefreshCw size={14} className={resourceLoading ? 'animate-spin' : ''} />
-                </button>
-                <button
+                </LucentIconButton>
+                <LucentIconButton
                   className="btn btn-secondary btn-sm icon-btn"
                   onClick={() => setShowResourceModal(false)}
-                  title={t.close}
+                  tooltip={t.close}
                   aria-label={t.close}
                 >
                   <X size={14} />
-                </button>
+                </LucentIconButton>
               </div>
             </div>
 
@@ -2589,9 +2585,9 @@ export function BotDashboardModule({
                 <span className="modal-sub">{t.baseConfigSub}</span>
               </div>
               <div className="modal-title-actions">
-                <button className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowBaseModal(false)} title={t.close} aria-label={t.close}>
+                <LucentIconButton className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowBaseModal(false)} tooltip={t.close} aria-label={t.close}>
                   <X size={14} />
-                </button>
+                </LucentIconButton>
               </div>
             </div>
 
@@ -2661,9 +2657,9 @@ export function BotDashboardModule({
                 <h3>{t.modelParams}</h3>
               </div>
               <div className="modal-title-actions">
-                <button className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowParamModal(false)} title={t.close} aria-label={t.close}>
+                <LucentIconButton className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowParamModal(false)} tooltip={t.close} aria-label={t.close}>
                   <X size={14} />
-                </button>
+                </LucentIconButton>
               </div>
             </div>
             <div className="slider-row">
@@ -2743,9 +2739,9 @@ export function BotDashboardModule({
                 <h3>{lc.wizardSectionTitle}</h3>
               </div>
               <div className="modal-title-actions">
-                <button className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowChannelModal(false)} title={t.close} aria-label={t.close}>
+                <LucentIconButton className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowChannelModal(false)} tooltip={t.close} aria-label={t.close}>
                   <X size={14} />
-                </button>
+                </LucentIconButton>
               </div>
             </div>
             <div className="card" style={{ fontSize: 12, color: 'var(--muted)' }}>
@@ -2773,15 +2769,15 @@ export function BotDashboardModule({
                   />
                   {lc.sendToolHints}
                 </label>
-                <button
+                <LucentIconButton
                   className="btn btn-primary btn-sm icon-btn"
                   disabled={isSavingGlobalDelivery || !selectedBot}
                   onClick={() => void saveGlobalDelivery()}
-                  title={lc.saveChannel}
+                  tooltip={lc.saveChannel}
                   aria-label={lc.saveChannel}
                 >
                   <Save size={14} />
-                </button>
+                </LucentIconButton>
               </div>
             </div>
             <div className="wizard-channel-list">
@@ -2801,28 +2797,29 @@ export function BotDashboardModule({
                         />
                         {lc.enabled}
                       </label>
-                      <button
+                      <LucentIconButton
                         className="btn btn-danger btn-sm wizard-icon-btn"
                         disabled={isDashboardChannel(channel) || isSavingChannel}
                         onClick={() => void removeChannel(channel)}
-                        title={lc.remove}
+                        tooltip={lc.remove}
+                        aria-label={lc.remove}
                       >
                         <Trash2 size={14} />
-                      </button>
+                      </LucentIconButton>
                     </div>
                   </div>
                   {renderChannelFields(channel, idx)}
                   <div className="row-between">
                     <span className="field-label">{lc.customChannel}</span>
-                    <button
+                    <LucentIconButton
                       className="btn btn-primary btn-sm icon-btn"
                       disabled={isSavingChannel}
                       onClick={() => void saveChannel(channel)}
-                      title={lc.saveChannel}
+                      tooltip={lc.saveChannel}
                       aria-label={lc.saveChannel}
                     >
                       <Save size={14} />
-                    </button>
+                    </LucentIconButton>
                   </div>
                 </div>
                 )
@@ -2840,15 +2837,15 @@ export function BotDashboardModule({
                   <option key={t} value={t}>{t}</option>
                 ))}
               </select>
-              <button
+              <LucentIconButton
                 className="btn btn-secondary btn-sm icon-btn"
                 disabled={addableChannelTypes.length === 0 || isSavingChannel}
                 onClick={() => void addChannel()}
-                title={lc.addChannel}
+                tooltip={lc.addChannel}
                 aria-label={lc.addChannel}
               >
                 <Plus size={14} />
-              </button>
+              </LucentIconButton>
             </div>
           </div>
         </div>
@@ -2862,9 +2859,9 @@ export function BotDashboardModule({
                 <h3>{t.skillsPanel}</h3>
               </div>
               <div className="modal-title-actions">
-                <button className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowSkillsModal(false)} title={t.close} aria-label={t.close}>
+                <LucentIconButton className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowSkillsModal(false)} tooltip={t.close} aria-label={t.close}>
                   <X size={14} />
-                </button>
+                </LucentIconButton>
               </div>
             </div>
             <div className="wizard-channel-list">
@@ -2880,13 +2877,14 @@ export function BotDashboardModule({
                         <div className="field-label mono">{String(skill.type || '').toUpperCase()}</div>
                         <div className="field-label">{skill.description || '-'}</div>
                       </div>
-                      <button
+                      <LucentIconButton
                         className="btn btn-danger btn-sm wizard-icon-btn"
                         onClick={() => void removeBotSkill(skill)}
-                        title={t.removeSkill}
+                        tooltip={t.removeSkill}
+                        aria-label={t.removeSkill}
                       >
                         <Trash2 size={14} />
-                      </button>
+                      </LucentIconButton>
                     </div>
                   </div>
                 ))
@@ -2927,9 +2925,9 @@ export function BotDashboardModule({
                 <h3>{t.envParams}</h3>
               </div>
               <div className="modal-title-actions">
-                <button className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowEnvParamsModal(false)} title={t.close} aria-label={t.close}>
+                <LucentIconButton className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowEnvParamsModal(false)} tooltip={t.close} aria-label={t.close}>
                   <X size={14} />
-                </button>
+                </LucentIconButton>
               </div>
             </div>
             <div className="field-label" style={{ marginBottom: 8 }}>{t.envParamsDesc}</div>
@@ -2948,21 +2946,22 @@ export function BotDashboardModule({
                         onChange={(e) => upsertEnvParam(key, e.target.value)}
                         placeholder={t.envValue}
                       />
-                      <button
+                      <LucentIconButton
                         className="btn btn-secondary btn-sm wizard-icon-btn"
                         onClick={() => setEnvVisibleByKey((prev) => ({ ...prev, [key]: !prev[key] }))}
-                        title={envVisibleByKey[key] ? t.hideEnvValue : t.showEnvValue}
+                        tooltip={envVisibleByKey[key] ? t.hideEnvValue : t.showEnvValue}
                         aria-label={envVisibleByKey[key] ? t.hideEnvValue : t.showEnvValue}
                       >
                         {envVisibleByKey[key] ? <EyeOff size={14} /> : <Eye size={14} />}
-                      </button>
-                      <button
+                      </LucentIconButton>
+                      <LucentIconButton
                         className="btn btn-danger btn-sm wizard-icon-btn"
                         onClick={() => removeEnvParam(key)}
-                        title={t.removeEnvParam}
+                        tooltip={t.removeEnvParam}
+                        aria-label={t.removeEnvParam}
                       >
                         <Trash2 size={14} />
-                      </button>
+                      </LucentIconButton>
                     </div>
                   </div>
                 ))
@@ -2983,15 +2982,15 @@ export function BotDashboardModule({
                 onChange={(e) => setEnvDraftValue(e.target.value)}
                 placeholder={t.envValue}
               />
-              <button
+              <LucentIconButton
                 className="btn btn-secondary btn-sm icon-btn"
                 onClick={() => setEnvDraftVisible((v) => !v)}
-                title={envDraftVisible ? t.hideEnvValue : t.showEnvValue}
+                tooltip={envDraftVisible ? t.hideEnvValue : t.showEnvValue}
                 aria-label={envDraftVisible ? t.hideEnvValue : t.showEnvValue}
               >
                 {envDraftVisible ? <EyeOff size={14} /> : <Eye size={14} />}
-              </button>
-              <button
+              </LucentIconButton>
+              <LucentIconButton
                 className="btn btn-secondary btn-sm icon-btn"
                 onClick={() => {
                   const key = String(envDraftKey || '').trim().toUpperCase();
@@ -3000,11 +2999,11 @@ export function BotDashboardModule({
                   setEnvDraftKey('');
                   setEnvDraftValue('');
                 }}
-                title={t.addEnvParam}
+                tooltip={t.addEnvParam}
                 aria-label={t.addEnvParam}
               >
                 <Plus size={14} />
-              </button>
+              </LucentIconButton>
             </div>
             <div className="row-between">
               <span className="field-label">{t.envParamsHint}</span>
@@ -3025,18 +3024,18 @@ export function BotDashboardModule({
                 <h3>{t.cronViewer}</h3>
               </div>
               <div className="modal-title-actions">
-                <button
+                <LucentIconButton
                   className="btn btn-secondary btn-sm icon-btn"
                   onClick={() => selectedBot && void loadCronJobs(selectedBot.id)}
-                  title={t.cronReload}
+                  tooltip={t.cronReload}
                   aria-label={t.cronReload}
                   disabled={cronLoading}
                 >
                   <RefreshCw size={14} className={cronLoading ? 'animate-spin' : ''} />
-                </button>
-                <button className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowCronModal(false)} title={t.close} aria-label={t.close}>
+                </LucentIconButton>
+                <LucentIconButton className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowCronModal(false)} tooltip={t.close} aria-label={t.close}>
                   <X size={14} />
-                </button>
+                </LucentIconButton>
               </div>
             </div>
             {cronLoading ? (
@@ -3067,24 +3066,24 @@ export function BotDashboardModule({
                         <div className="ops-cron-meta">{job.enabled === false ? t.cronDisabled : t.cronEnabled}</div>
                       </div>
                       <div className="ops-cron-actions">
-                        <button
+                        <LucentIconButton
                           className="btn btn-danger btn-sm icon-btn"
                           onClick={() => void stopCronJob(job.id)}
-                          title={t.cronStop}
+                          tooltip={t.cronStop}
                           aria-label={t.cronStop}
                           disabled={stopping || job.enabled === false}
                         >
                           <PowerOff size={13} />
-                        </button>
-                        <button
+                        </LucentIconButton>
+                        <LucentIconButton
                           className="btn btn-danger btn-sm icon-btn"
                           onClick={() => void deleteCronJob(job.id)}
-                          title={t.cronDelete}
+                          tooltip={t.cronDelete}
                           aria-label={t.cronDelete}
                           disabled={stopping}
                         >
                           <Trash2 size={13} />
-                        </button>
+                        </LucentIconButton>
                       </div>
                     </div>
                   );
@@ -3103,9 +3102,9 @@ export function BotDashboardModule({
                 <h3>{t.agentFiles}</h3>
               </div>
               <div className="modal-title-actions">
-                <button className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowAgentModal(false)} title={t.close} aria-label={t.close}>
+                <LucentIconButton className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowAgentModal(false)} tooltip={t.close} aria-label={t.close}>
                   <X size={14} />
-                </button>
+                </LucentIconButton>
               </div>
             </div>
             <div className="wizard-agent-layout">
@@ -3132,9 +3131,9 @@ export function BotDashboardModule({
                 <h3>{t.lastAction}</h3>
               </div>
               <div className="modal-title-actions">
-                <button className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowRuntimeActionModal(false)} title={t.close} aria-label={t.close}>
+                <LucentIconButton className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowRuntimeActionModal(false)} tooltip={t.close} aria-label={t.close}>
                   <X size={14} />
-                </button>
+                </LucentIconButton>
               </div>
             </div>
             <div className="workspace-preview-body">
@@ -3153,22 +3152,22 @@ export function BotDashboardModule({
                 <span className="modal-sub mono">{workspacePreview.path}</span>
               </div>
               <div className="workspace-preview-header-actions">
-                <button
+                <LucentIconButton
                   className="btn btn-secondary btn-sm icon-btn"
                   onClick={() => setWorkspacePreviewFullscreen((v) => !v)}
-                  title={workspacePreviewFullscreen ? (isZh ? '退出全屏' : 'Exit full screen') : (isZh ? '全屏预览' : 'Full screen')}
+                  tooltip={workspacePreviewFullscreen ? (isZh ? '退出全屏' : 'Exit full screen') : (isZh ? '全屏预览' : 'Full screen')}
                   aria-label={workspacePreviewFullscreen ? (isZh ? '退出全屏' : 'Exit full screen') : (isZh ? '全屏预览' : 'Full screen')}
                 >
                   {workspacePreviewFullscreen ? <Minimize2 size={14} /> : <Maximize2 size={14} />}
-                </button>
-                <button
+                </LucentIconButton>
+                <LucentIconButton
                   className="btn btn-secondary btn-sm icon-btn"
                   onClick={closeWorkspacePreview}
-                  title={t.close}
+                  tooltip={t.close}
                   aria-label={t.close}
                 >
                   <X size={14} />
-                </button>
+                </LucentIconButton>
               </div>
             </div>
             <div className={`workspace-preview-body ${workspacePreview.isMarkdown ? 'markdown' : ''}`}>
diff --git a/frontend/src/modules/images/ImageFactoryModule.tsx b/frontend/src/modules/images/ImageFactoryModule.tsx
index a0d069f..48c0fb4 100644
--- a/frontend/src/modules/images/ImageFactoryModule.tsx
+++ b/frontend/src/modules/images/ImageFactoryModule.tsx
@@ -7,6 +7,7 @@ import { pickLocale } from '../../i18n';
 import { imageFactoryZhCn } from '../../i18n/image-factory.zh-cn';
 import { imageFactoryEn } from '../../i18n/image-factory.en';
 import { useLucentPrompt } from '../../components/lucent/LucentPromptProvider';
+import { LucentIconButton } from '../../components/lucent/LucentIconButton';
 
 interface NanobotImage {
   tag: string;
@@ -178,15 +179,15 @@ export function ImageFactoryModule() {
                   <td>{img.version}</td>
                   <td><span className={statusClass(img.status)}>{img.status}</span></td>
                   <td>
-                    <button
+                    <LucentIconButton
                       className="btn btn-danger btn-sm icon-btn"
                       disabled={isDeletingTag === img.tag}
                       onClick={() => void handleDeleteRegistered(img.tag)}
-                      title={isDeletingTag === img.tag ? t.deleting : t.deleteRegistry}
+                      tooltip={isDeletingTag === img.tag ? t.deleting : t.deleteRegistry}
                       aria-label={isDeletingTag === img.tag ? t.deleting : t.deleteRegistry}
                     >
                       <Trash2 size={14} />
-                    </button>
+                    </LucentIconButton>
                   </td>
                 </tr>
               ))}
@@ -202,14 +203,14 @@ export function ImageFactoryModule() {
             <h2>{t.dockerTitle}</h2>
             <p className="panel-desc">{t.dockerDesc}</p>
           </div>
-          <button
+          <LucentIconButton
             className="btn btn-secondary icon-btn"
             onClick={() => void refreshDockerImages()}
-            title={isRefreshing ? t.refreshing : t.refresh}
+            tooltip={isRefreshing ? t.refreshing : t.refresh}
             aria-label={isRefreshing ? t.refreshing : t.refresh}
           >
             <RefreshCw size={14} className={isRefreshing ? 'animate-spin' : ''} />
-          </button>
+          </LucentIconButton>
         </div>
 
         <div className="card" style={{ fontSize: 12, color: 'var(--muted)' }}>
diff --git a/frontend/src/modules/management/components/KernelManagerModal.tsx b/frontend/src/modules/management/components/KernelManagerModal.tsx
index 930d7f6..b6371af 100644
--- a/frontend/src/modules/management/components/KernelManagerModal.tsx
+++ b/frontend/src/modules/management/components/KernelManagerModal.tsx
@@ -7,6 +7,7 @@ import { pickLocale } from '../../../i18n';
 import { managementZhCn } from '../../../i18n/management.zh-cn';
 import { managementEn } from '../../../i18n/management.en';
 import { useLucentPrompt } from '../../../components/lucent/LucentPromptProvider';
+import { LucentIconButton } from '../../../components/lucent/LucentIconButton';
 
 interface KernelManagerModalProps {
   isOpen: boolean;
@@ -65,9 +66,9 @@ export function KernelManagerModal({ isOpen, onClose }: KernelManagerModalProps)
             <Cpu className="text-blue-400" size={24} />
             <h2 className="text-xl font-bold text-white">{t.title}</h2>
           </div>
-          <button onClick={onClose} className="p-2 hover:bg-slate-700 rounded-full transition-colors text-white">
+          <LucentIconButton onClick={onClose} className="p-2 hover:bg-slate-700 rounded-full transition-colors text-white" tooltip={locale === 'zh' ? '关闭' : 'Close'} aria-label={locale === 'zh' ? '关闭' : 'Close'}>
             <X size={20} />
-          </button>
+          </LucentIconButton>
         </div>
 
         <div className="p-6">
@@ -87,13 +88,14 @@ export function KernelManagerModal({ isOpen, onClose }: KernelManagerModalProps)
                     <span className={`text-[9px] font-bold ${img.status === 'READY' ? 'text-green-500' : 'text-slate-400'}`}>
                       {img.status}
                     </span>
-                    <button
+                    <LucentIconButton
                       onClick={() => handleRemoveImage(img.tag)}
                       className="ml-2 p-1.5 hover:bg-red-500/20 text-slate-500 hover:text-red-500 rounded transition-colors"
-                      title={t.removeRecord}
+                      tooltip={t.removeRecord}
+                      aria-label={t.removeRecord}
                     >
                       <Trash2 size={14} />
-                    </button>
+                    </LucentIconButton>
                   </div>
                 </div>
               ))}
diff --git a/frontend/src/modules/onboarding/BotWizardModule.tsx b/frontend/src/modules/onboarding/BotWizardModule.tsx
index 9830f9d..f58b784 100644
--- a/frontend/src/modules/onboarding/BotWizardModule.tsx
+++ b/frontend/src/modules/onboarding/BotWizardModule.tsx
@@ -9,6 +9,7 @@ import { pickLocale } from '../../i18n';
 import { wizardZhCn } from '../../i18n/wizard.zh-cn';
 import { wizardEn } from '../../i18n/wizard.en';
 import { useLucentPrompt } from '../../components/lucent/LucentPromptProvider';
+import { LucentIconButton } from '../../components/lucent/LucentIconButton';
 
 type AgentTab = 'AGENTS' | 'SOUL' | 'USER' | 'TOOLS' | 'IDENTITY';
 type ChannelType = 'feishu' | 'qq' | 'dingtalk' | 'telegram' | 'slack';
@@ -698,9 +699,9 @@ export function BotWizardModule({ onCreated, onGoDashboard }: BotWizardModulePro
               <div className="mono">
                 {configuredChannelsLabel}
               </div>
-              <button className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowChannelModal(true)} title={lc.openManager} aria-label={lc.openManager}>
+              <LucentIconButton className="btn btn-secondary btn-sm icon-btn" onClick={() => setShowChannelModal(true)} tooltip={lc.openManager} aria-label={lc.openManager}>
                 <Settings2 size={14} />
-              </button>
+              </LucentIconButton>
             </div>
 
             <div className="section-mini-title" style={{ marginTop: 6 }}>{ui.toolsConfig}</div>
@@ -709,14 +710,14 @@ export function BotWizardModule({ onCreated, onGoDashboard }: BotWizardModulePro
               <div className="mono">
                 {envEntries.length > 0 ? envEntries.map(([k]) => k).join(', ') : ui.noEnvParams}
               </div>
-              <button
+              <LucentIconButton
                 className="btn btn-secondary btn-sm icon-btn"
                 onClick={() => setShowToolsConfigModal(true)}
-                title={ui.openToolsManager}
+                tooltip={ui.openToolsManager}
                 aria-label={ui.openToolsManager}
               >
                 <Settings2 size={14} />
-              </button>
+              </LucentIconButton>
             </div>
           </div>
         </div>
@@ -825,13 +826,14 @@ export function BotWizardModule({ onCreated, onGoDashboard }: BotWizardModulePro
                         />
                         {lc.enabled}
                       </label>
-                      <button
+                      <LucentIconButton
                         className="btn btn-danger btn-sm wizard-icon-btn"
                         onClick={() => removeChannel(idx)}
-                        title={lc.remove}
+                        tooltip={lc.remove}
+                        aria-label={lc.remove}
                       >
                         <Trash2 size={14} />
-                      </button>
+                      </LucentIconButton>
                     </div>
                   </div>
 
@@ -846,9 +848,9 @@ export function BotWizardModule({ onCreated, onGoDashboard }: BotWizardModulePro
                   <option key={t} value={t}>{t}</option>
                 ))}
               </select>
-              <button className="btn btn-secondary btn-sm icon-btn" disabled={addableChannelTypes.length === 0} onClick={addChannel} title={lc.addChannel} aria-label={lc.addChannel}>
+              <LucentIconButton className="btn btn-secondary btn-sm icon-btn" disabled={addableChannelTypes.length === 0} onClick={addChannel} tooltip={lc.addChannel} aria-label={lc.addChannel}>
                 <Plus size={14} />
-              </button>
+              </LucentIconButton>
             </div>
             <div className="row-between">
               <span className="field-label">{lc.wizardSectionDesc}</span>
@@ -883,21 +885,22 @@ export function BotWizardModule({ onCreated, onGoDashboard }: BotWizardModulePro
                         onChange={(e) => upsertEnvParam(key, e.target.value)}
                         placeholder={ui.envValue}
                       />
-                      <button
+                      <LucentIconButton
                         className="btn btn-secondary btn-sm wizard-icon-btn"
                         onClick={() => setEnvVisibleByKey((prev) => ({ ...prev, [key]: !prev[key] }))}
-                        title={envVisibleByKey[key] ? ui.hideEnvValue : ui.showEnvValue}
+                        tooltip={envVisibleByKey[key] ? ui.hideEnvValue : ui.showEnvValue}
                         aria-label={envVisibleByKey[key] ? ui.hideEnvValue : ui.showEnvValue}
                       >
                         {envVisibleByKey[key] ? <EyeOff size={14} /> : <Eye size={14} />}
-                      </button>
-                      <button
+                      </LucentIconButton>
+                      <LucentIconButton
                         className="btn btn-danger btn-sm wizard-icon-btn"
                         onClick={() => removeEnvParam(key)}
-                        title={ui.removeEnvParam}
+                        tooltip={ui.removeEnvParam}
+                        aria-label={ui.removeEnvParam}
                       >
                         <Trash2 size={14} />
-                      </button>
+                      </LucentIconButton>
                     </div>
                   </div>
                 ))
@@ -917,15 +920,15 @@ export function BotWizardModule({ onCreated, onGoDashboard }: BotWizardModulePro
                 onChange={(e) => setEnvDraftValue(e.target.value)}
                 placeholder={ui.envValue}
               />
-              <button
+              <LucentIconButton
                 className="btn btn-secondary btn-sm icon-btn"
                 onClick={() => setEnvDraftVisible((v) => !v)}
-                title={envDraftVisible ? ui.hideEnvValue : ui.showEnvValue}
+                tooltip={envDraftVisible ? ui.hideEnvValue : ui.showEnvValue}
                 aria-label={envDraftVisible ? ui.hideEnvValue : ui.showEnvValue}
               >
                 {envDraftVisible ? <EyeOff size={14} /> : <Eye size={14} />}
-              </button>
-              <button
+              </LucentIconButton>
+              <LucentIconButton
                 className="btn btn-secondary btn-sm icon-btn"
                 onClick={() => {
                   const key = String(envDraftKey || '').trim().toUpperCase();
@@ -934,11 +937,11 @@ export function BotWizardModule({ onCreated, onGoDashboard }: BotWizardModulePro
                   setEnvDraftKey('');
                   setEnvDraftValue('');
                 }}
-                title={ui.addEnvParam}
+                tooltip={ui.addEnvParam}
                 aria-label={ui.addEnvParam}
               >
                 <Plus size={14} />
-              </button>
+              </LucentIconButton>
             </div>
             <div className="row-between">
               <span className="field-label">{ui.toolsDesc}</span>