重构前端 Wave0-2 体验基线（05-28-frontend-ux-redesign）

client/src/components/navigation/Topbar.tsx

@@ -135,8 +135,8 @@ export function Topbar() {
 
   return (
     <>
-      <header className="sticky top-0 z-10 border-b border-slate-200/80 bg-white/94 px-4 py-3 shadow-[0_4px_14px_rgba(15,23,42,0.035)] sm:px-8">
-        <div className="flex items-center justify-between gap-4">
+      <header className="app-topbar sticky top-0 z-10 px-4 py-2.5 sm:px-8">
+        <div className="flex items-center justify-between gap-3">
           <div className="flex min-w-0 items-center gap-3">
             <Dialog open={mobileNavOpen} onOpenChange={setMobileNavOpen}>
               <DialogTrigger asChild>
@@ -164,9 +164,11 @@ export function Topbar() {
             </Dialog>
 
             <div className="min-w-0">
-              <div className="text-xs font-bold uppercase tracking-[0.2em] text-primary/70">{pageMeta.group}</div>
-              <div className="mt-1 flex flex-wrap items-center gap-2">
-                <p className="truncate text-lg font-semibold text-[var(--color-text-primary)]">{pageMeta.title}</p>
+              <div className="flex flex-wrap items-center gap-2">
+                <p className="truncate text-base font-semibold text-[var(--color-text-primary)] md:text-lg">{pageMeta.title}</p>
+                <span className="hidden rounded-full bg-slate-100 px-2 py-0.5 text-xs font-medium text-[var(--color-text-secondary)] sm:inline-flex">
+                  {pageMeta.group}
+                </span>
                 {wecomEntry ? (
                   <span
                     className="badge-neutral border-primary-200 bg-primary-50 text-primary"
@@ -176,7 +178,7 @@ export function Topbar() {
                   </span>
                 ) : null}
               </div>
-              <div className="mt-1 text-sm text-[var(--color-text-secondary)]">{me ? `你好，${me.name}` : "欢迎进入海音达工作台"}</div>
+              <div className="mt-0.5 text-xs text-[var(--color-text-secondary)]">{me ? `${me.name} · 当前工作区` : "海音达 OA"}</div>
             </div>
           </div>
 
@@ -187,10 +189,11 @@ export function Topbar() {
               type="button"
               onClick={() => setSearchOpen(true)}
               data-testid="global-search-trigger"
-              className="hidden md:inline-flex"
+              className="app-command-button hidden md:inline-flex"
             >
               <span className="material-symbols-outlined mr-1 text-[18px]">search</span>
               搜索
+              <span className="ml-2 rounded bg-white px-1.5 py-0.5 text-[11px] text-slate-500">Ctrl K</span>
             </Button>
 
             <Button
@@ -199,7 +202,7 @@ export function Topbar() {
               type="button"
               onClick={() => setSearchOpen(true)}
               data-testid="global-search-trigger-mobile"
-              className="md:hidden"
+              className="app-command-button md:hidden"
               aria-label="打开搜索"
             >
               <span className="material-symbols-outlined text-[18px]">search</span>
@@ -213,7 +216,7 @@ export function Topbar() {
                   aria-label="通知"
                   type="button"
                   data-testid="notifications-bell"
-                  className="relative"
+                  className="app-command-button relative"
                 >
                   <BellIcon />
                   {unreadCount > 0 ? (