diff --git a/components/agents/AgentWorkflowMaterialPicker.tsx b/components/agents/AgentWorkflowMaterialPicker.tsx
index f8ef58e76..08b9cc5ac 100644
--- a/components/agents/AgentWorkflowMaterialPicker.tsx
+++ b/components/agents/AgentWorkflowMaterialPicker.tsx
@@ -11,8 +11,8 @@ import type {
 } from "@/types/agent";
 
 interface AgentWorkflowMaterialPickerProps {
-  title: string;
-  description: string;
+  title?: string;
+  description?: string;
   value: string;
   queryMode: AgentWorkflowMaterialQueryType;
   placeholder: string;
@@ -90,12 +90,18 @@ export function AgentWorkflowMaterialPicker({
         isDark ? "border-white/12 bg-black/20" : "bg-muted/20"
       )}
     >
-      <div className="space-y-1">
-        <div className={cn("text-sm font-medium", isDark ? "text-white/92" : "")}>{title}</div>
-        <div className={cn("text-xs", isDark ? "text-white/62" : "text-muted-foreground")}>
-          {description}
+      {title || description ? (
+        <div className="space-y-1">
+          {title ? (
+            <div className={cn("text-sm font-medium", isDark ? "text-white/92" : "")}>{title}</div>
+          ) : null}
+          {description ? (
+            <div className={cn("text-xs", isDark ? "text-white/62" : "text-muted-foreground")}>
+              {description}
+            </div>
+          ) : null}
         </div>
-      </div>
+      ) : null}
 
       <div className="flex flex-wrap gap-2">
         {(["sku", "spu"] as const).map((mode) => (
diff --git a/components/agents/AgentWorkflowMaterialSelectionPanel.tsx b/components/agents/AgentWorkflowMaterialSelectionPanel.tsx
index bcfa40da5..544c1e1db 100644
--- a/components/agents/AgentWorkflowMaterialSelectionPanel.tsx
+++ b/components/agents/AgentWorkflowMaterialSelectionPanel.tsx
@@ -211,8 +211,6 @@ export function AgentWorkflowMaterialSelectionPanel({
       ) : null}
 
       <AgentWorkflowMaterialPicker
-        title="主 SKU / SPU"
-        description="主商品图会优先自动填充到“产品图1”；如果没有搭配图，再继续补到“产品图2”。"
         value={inputs.primarySku}
         queryMode={materialSearchMode.primary}
         placeholder={materialSearchMode.primary === "spu" ? "输入主 SPU" : "输入主 SKU"}
@@ -281,8 +279,6 @@ export function AgentWorkflowMaterialSelectionPanel({
 
       {isSecondaryMaterialVisible ? (
         <AgentWorkflowMaterialPicker
-          title="搭配 SKU"
-          description="搭配商品图会优先自动填充到“产品图2”；品牌模特图会在上方单独选择并进入模特图槽位。"
           value={inputs.secondarySku}
           queryMode={materialSearchMode.secondary}
           placeholder={materialSearchMode.secondary === "spu" ? "输入搭配 SPU" : "输入搭配 SKU"}
diff --git a/components/agents/AgentWorkflowPanelDarkV2.tsx b/components/agents/AgentWorkflowPanelDarkV2.tsx
index a6c97f892..71e32971d 100644
--- a/components/agents/AgentWorkflowPanelDarkV2.tsx
+++ b/components/agents/AgentWorkflowPanelDarkV2.tsx
@@ -385,7 +385,7 @@ export function AgentWorkflowPanelDarkV2({
 
   const workflowContent = (
     <div className="space-y-8">
-              {/* 基础配置 */}
+              {/* 品牌和店铺选择 */}
               <motion.section
                 className="rounded-2xl border border-white/12 bg-white/[0.04] p-5 shadow-[inset_0_1px_0_rgba(255,255,255,0.03)]"
                 initial={{ opacity: 0, y: 20 }}
@@ -396,7 +396,7 @@ export function AgentWorkflowPanelDarkV2({
                   <span className="flex h-6 w-6 items-center justify-center rounded-md bg-emerald-500/20 text-xs font-bold text-emerald-400">
                     1
                   </span>
-                  基础配置
+                  品牌和店铺选择
                 </h2>
                 <div className="grid grid-cols-1 gap-4 md:grid-cols-2 max-w-2xl">
                   <SearchableSelect
diff --git a/components/agents/AgentWorkflowParticleScatter.tsx b/components/agents/AgentWorkflowParticleScatter.tsx
index 25b6b027c..5d0dd9d69 100644
--- a/components/agents/AgentWorkflowParticleScatter.tsx
+++ b/components/agents/AgentWorkflowParticleScatter.tsx
@@ -4,11 +4,26 @@ import { cn } from "@/lib/utils";
 
 type AgentWorkflowParticleScatterProps = {
   className?: string;
+  particleSize?: number;
+  particleCount?: number;
 };
 
 export function AgentWorkflowParticleScatter({
   className,
+  particleSize,
+  particleCount,
 }: AgentWorkflowParticleScatterProps) {
+  const searchParams = new URLSearchParams();
+  if (typeof particleSize === "number" && Number.isFinite(particleSize) && particleSize > 0) {
+    searchParams.set("particleSize", String(particleSize));
+  }
+  if (typeof particleCount === "number" && Number.isFinite(particleCount) && particleCount > 0) {
+    searchParams.set("particleCount", String(Math.round(particleCount)));
+  }
+  const src = searchParams.size
+    ? `/particle-scatter-effect.html?${searchParams.toString()}`
+    : "/particle-scatter-effect.html";
+
   return (
     <div
       className={cn(
@@ -18,9 +33,9 @@ export function AgentWorkflowParticleScatter({
     >
       <iframe
         aria-hidden="true"
-        className="h-full w-full border-0 bg-transparent [mask-image:linear-gradient(to_top,black_72%,transparent_100%)]"
+        className="h-full w-full border-0 bg-transparent"
         loading="eager"
-        src="/particle-scatter-effect.html"
+        src={src}
         tabIndex={-1}
         title="Particle Scatter Background"
       />
diff --git a/components/agents/AgentWorkflowShowcaseBanner.tsx b/components/agents/AgentWorkflowShowcaseBanner.tsx
index bd188ff6d..6840e587a 100644
--- a/components/agents/AgentWorkflowShowcaseBanner.tsx
+++ b/components/agents/AgentWorkflowShowcaseBanner.tsx
@@ -44,7 +44,13 @@ export function AgentWorkflowShowcaseBanner({
         animate={{ opacity: 1, y: 0 }}
         transition={{ duration: 0.6 }}
       >
-        <AgentWorkflowParticleScatter className="top-0 h-full opacity-20" />
+        <AgentWorkflowParticleScatter
+          className="top-0 h-full"
+          particleSize={110}
+          particleCount={76000}
+        />
+        <div className="pointer-events-none absolute inset-0 bg-black/80" />
+        <div className="pointer-events-none absolute inset-x-0 top-0 h-[24%] bg-gradient-to-b from-black via-black/72 to-transparent" />
         <div className="pointer-events-none absolute inset-x-0 bottom-0 h-[34%] bg-gradient-to-t from-black via-black/28 to-transparent" />
 
         <div className="relative z-10">
diff --git a/public/particle-scatter-effect.html b/public/particle-scatter-effect.html
index c5a8caf10..f2b3d9f38 100644
--- a/public/particle-scatter-effect.html
+++ b/public/particle-scatter-effect.html
@@ -25,6 +25,17 @@
             interactionMode: "auto",
             manualControlTarget: "camera"
         };
+        try {
+            const urlParams = new URLSearchParams(window.location.search);
+            const particleSizeOverride = Number(urlParams.get("particleSize"));
+            const particleCountOverride = Number(urlParams.get("particleCount"));
+            if (Number.isFinite(particleSizeOverride) && particleSizeOverride > 0) {
+                CONFIG.particleSize = particleSizeOverride;
+            }
+            if (Number.isFinite(particleCountOverride) && particleCountOverride > 0) {
+                CONFIG.particleCount = Math.floor(particleCountOverride);
+            }
+        } catch (error) {}
         let uploadedImage = CONFIG.uploadedImage;
         let particleSize = CONFIG.particleSize;
         const PARTICLE_COUNT = CONFIG.particleCount;
@@ -153,6 +164,7 @@
                 if (!sceneData) return;
                 sceneData.camera.aspect = window.innerWidth / window.innerHeight;
                 sceneData.camera.updateProjectionMatrix();
+                sceneData.renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));
                 sceneData.renderer.setSize(window.innerWidth, window.innerHeight);
             });
             renderer.domElement.addEventListener("mousedown", function(e) {
@@ -296,4 +308,4 @@
         document.addEventListener("DOMContentLoaded", initParticleCanvas);
     </script>
 </body>
-</html>
\ No newline at end of file
+</html>