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client/src/pages/EQPage.tsx

@@ -1812,10 +1812,13 @@ export default function EQPage() {
         </div>
 
         {/* ── Headphone model selector ── */}
-        <div className="flex items-center justify-between px-1">
+        <div className="flex min-w-0 items-center gap-2 px-1">
           <div
             ref={headphoneMenuRef}
-            className="relative z-40 flex-1 mr-2 rounded-[12px] overflow-visible backdrop-blur-md transition-all"
+            className={cn(
+              "relative min-w-0 flex-1 max-w-[calc(100%-5.5rem)] rounded-[12px] overflow-visible backdrop-blur-md transition-all",
+              isHeadphoneMenuOpen && "z-30",
+            )}
             style={{
               background: "linear-gradient(180deg, rgba(36,38,42,0.92) 0%, rgba(24,26,30,0.92) 100%)",
               border: "1px solid rgba(0,255,246,0.52)",
@@ -1863,7 +1866,7 @@ export default function EQPage() {
               </div>
             )}
           </div>
-          <div className="flex items-center gap-2">
+          <div className="flex shrink-0 items-center gap-2">
             <button
               className="w-9 h-9 rounded-full flex items-center justify-center text-white/60 active:text-white transition-colors"
               style={{ background: "rgba(44,44,46,0.8)", border: "1px solid rgba(255,255,255,0.1)" }}
@@ -1933,7 +1936,10 @@ export default function EQPage() {
             <span className="text-[14px] text-white/50 font-medium">{peqCardLabels.filters?.label ?? "滤波器"}</span>
             <div
               ref={filterMenuRef}
-              className="relative z-40 w-[136px] rounded-[12px] overflow-visible backdrop-blur-md transition-all"
+              className={cn(
+                "relative w-[136px] rounded-[12px] overflow-visible backdrop-blur-md transition-all",
+                isFilterMenuOpen && "z-30",
+              )}
               style={{
                 background: "linear-gradient(180deg, rgba(36,38,42,0.92) 0%, rgba(24,26,30,0.92) 100%)",
                 border: "1px solid rgba(0,255,246,0.52)",