diff --git a/components/flow-board/drawnix-workspace.tsx b/components/flow-board/drawnix-workspace.tsx
index 96ca8d090..fd2f41141 100644
--- a/components/flow-board/drawnix-workspace.tsx
+++ b/components/flow-board/drawnix-workspace.tsx
@@ -1361,7 +1361,7 @@ export function DrawnixWorkspace({
         type="file"
       />
       <FloatingSidebarShell
-        className="absolute top-4 left-4 z-20 lg:top-6 lg:left-6"
+        className="absolute top-[18px] left-7 z-30"
         flowBoardControl
       >
         <FloatingLogoPill
@@ -1370,10 +1370,16 @@ export function DrawnixWorkspace({
           }}
           siteLogo={displayLogo}
           siteName={siteName}
-          tooltip="返回首页"
+          tooltip={null}
+          variant="plain"
         />
+      </FloatingSidebarShell>
 
-        <FloatingSidebarRail className="max-h-[calc(100vh-88px)]">
+      <FloatingSidebarShell
+        className="absolute left-6 top-[92px] z-20"
+        flowBoardControl
+      >
+        <FloatingSidebarRail className="max-h-[calc(100vh-172px)]">
           <FloatingSidebarAction
             disabled={isSavingNow}
             icon={Save}
diff --git a/components/home/floating-sidebar-shell.tsx b/components/home/floating-sidebar-shell.tsx
index c43fc2777..a858231d6 100644
--- a/components/home/floating-sidebar-shell.tsx
+++ b/components/home/floating-sidebar-shell.tsx
@@ -37,8 +37,9 @@ export function FloatingSidebarShell({
 type FloatingLogoPillProps = {
   siteName: string;
   siteLogo?: string | null;
-  tooltip?: string;
+  tooltip?: string | null;
   onClick?: () => void;
+  variant?: "pill" | "plain";
 };
 
 export function FloatingLogoPill({
@@ -46,33 +47,53 @@ export function FloatingLogoPill({
   siteLogo,
   tooltip = siteName,
   onClick,
+  variant = "pill",
 }: FloatingLogoPillProps) {
+  const isPlain = variant === "plain";
+  const trigger = (
+    <button
+      aria-label={tooltip || siteName}
+      className={cn(
+        "pointer-events-auto flex items-center gap-2 text-left transition",
+        isPlain
+          ? "h-8 hover:opacity-70"
+          : "h-[52px] w-[52px] justify-center rounded-full border border-black/10 bg-white px-2.5 shadow hover:bg-black/[0.03] hover:shadow-md lg:w-[164px] lg:justify-start lg:px-4"
+      )}
+      onClick={onClick}
+      type="button"
+    >
+      {siteLogo ? (
+        <img
+          alt={siteName}
+          className="h-8 w-8 shrink-0 rounded-full object-cover"
+          src={siteLogo}
+        />
+      ) : (
+        <div className="flex h-8 w-8 shrink-0 items-center justify-center rounded-full bg-black font-bold text-white text-sm">
+          {siteName.slice(0, 1).toUpperCase()}
+        </div>
+      )}
+      <span
+        className={cn(
+          "min-w-0 truncate font-semibold text-[#111827] leading-none tracking-tight",
+          isPlain ? "text-[20px]" : "hidden text-[15px] lg:block"
+        )}
+      >
+        {siteName}
+      </span>
+    </button>
+  );
+
+  if (!tooltip) {
+    return trigger;
+  }
+
   return (
     <Tooltip>
-      <TooltipTrigger asChild>
-        <button
-          className="pointer-events-auto flex h-[52px] w-[52px] items-center justify-center gap-3 rounded-full border border-black/10 bg-white px-2.5 text-left shadow transition hover:bg-black/[0.03] hover:shadow-md lg:w-[164px] lg:justify-start lg:px-4"
-          onClick={onClick}
-          title={tooltip}
-          type="button"
-        >
-          {siteLogo ? (
-            <img
-              alt={siteName}
-              className="h-8 w-8 rounded-full object-cover"
-              src={siteLogo}
-            />
-          ) : (
-            <div className="flex h-8 w-8 shrink-0 items-center justify-center rounded-full bg-black font-bold text-white text-sm">
-              {siteName.slice(0, 1).toUpperCase()}
-            </div>
-          )}
-          <span className="hidden min-w-0 truncate font-semibold text-[#111827] text-[15px] leading-none tracking-tight lg:block">
-            {siteName}
-          </span>
-        </button>
-      </TooltipTrigger>
-      <TooltipContent side="right">{tooltip}</TooltipContent>
+      <TooltipTrigger asChild>{trigger}</TooltipTrigger>
+      <TooltipContent side={isPlain ? "bottom" : "right"}>
+        {tooltip}
+      </TooltipContent>
     </Tooltip>
   );
 }
@@ -126,7 +147,6 @@ export function FloatingSidebarAction({
           )}
           disabled={disabled || loading}
           onClick={onClick}
-          title={label}
           type="button"
         >
           {loading ? (