diff --git a/apps/desktop/src/App.tsx b/apps/desktop/src/App.tsx
index 2dd2593..d788c7c 100644
--- a/apps/desktop/src/App.tsx
+++ b/apps/desktop/src/App.tsx
@@ -103,7 +103,7 @@ export function App() {
       <section className="project-strip" aria-label="项目列表">
         <button className={workspaceMode === 'workbench' ? 'project-pill active' : 'project-pill'} onClick={() => setWorkspaceMode('workbench')}><IconApps /><span>工作台</span></button>
         <button className={workspaceMode === 'explore' ? 'project-pill active' : 'project-pill'} onClick={() => setWorkspaceMode('explore')}><IconCompass /><span>探索</span></button>
-        <Select className="project-select" value={projectId || 'all'} onChange={(value) => { setProjectId(value === 'all' ? '' : value); setWorkspaceMode('workbench') }} triggerElement={() => <button className="project-pill project-current"><i style={{ background: activeProject?.background || '#165DFF' }}>{activeProject ? projectLabel(activeProject) : <IconFolder />}</i><span>{title}</span><IconDown /></button>}>
+        <Select className="project-select" value={projectId || 'all'} onChange={(value) => { setProjectId(value === 'all' ? '' : value); setWorkspaceMode('workbench') }} triggerElement={() => <button className="project-pill project-current" aria-label={`切换项目，当前为${title}`}><i style={{ background: activeProject?.background || '#165DFF' }}>{activeProject ? projectLabel(activeProject) : <IconFolder />}</i><span>{title}</span><IconDown className="project-dropdown-icon" /></button>}>
           <Select.Option value="all">全部项目</Select.Option>
           {projects.map((project) => <Select.Option key={project.id} value={project.id}>{project.name}</Select.Option>)}
         </Select>
diff --git a/apps/desktop/src/styles.css b/apps/desktop/src/styles.css
index 846f225..46a8236 100644
--- a/apps/desktop/src/styles.css
+++ b/apps/desktop/src/styles.css
@@ -20,7 +20,7 @@ button { font: inherit; }
 .project-pill:hover, .project-pill.active { color: #165dff; background: #e8f3ff; border-color: #d3e7ff; }
 .project-pill i { display: grid; place-items: center; width: 19px; height: 19px; border-radius: 6px; color: #fff; font-style: normal; font-size: 9px; font-weight: 700; }
 .project-pill span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; font-weight: 600; }
-.project-select { min-width: 0; flex: 1; }.project-select .arco-select-view { border: 0; padding: 0; background: transparent; }.project-select .arco-select-view-value { display: none; }.project-current { width: 100%; max-width: none; justify-content: flex-start; }.project-current > svg { margin-left: auto; color: var(--muted); }
+.project-select { min-width: 0; flex: 1; }.project-select .arco-select-view { border: 0; padding: 0; background: transparent; }.project-select .arco-select-view-value { display: none; }.project-current { width: 100%; max-width: none; justify-content: flex-start; }.project-current .project-dropdown-icon { flex: 0 0 auto; margin-left: 1px; color: var(--muted); font-size: 12px; }
 
 .app-alert { grid-column: 1 / 2; z-index: 2; margin: 8px 12px -46px; align-self: start; }
 .app-main { grid-column: 1; grid-row: 3; min-width: 0; overflow: auto; padding: 18px 15px 24px; }