diff --git a/app/(admin)/settings/admin-settings-client.tsx b/app/(admin)/settings/admin-settings-client.tsx
index 16832f437..f897f6c03 100644
--- a/app/(admin)/settings/admin-settings-client.tsx
+++ b/app/(admin)/settings/admin-settings-client.tsx
@@ -2071,7 +2071,7 @@ export function AdminSettingsClient() {
     usageTimeMessage: "由壹点累了也是需要休息的",
     defaultTheme: "system",
     bannerEnabled: true,
-    bannerText: "升级会员, Nano Banana Pro 免费365天!",
+    bannerText: "限时特惠：升级会员最高立享 45% OFF!",
     bannerLink: null,
     toolbox1Name: "工具箱",
     toolbox1Enabled: true,
@@ -2108,7 +2108,7 @@ export function AdminSettingsClient() {
     agentWorkflowDefaultModelId: null,
     canvasDetailDefaultModelId: null,
     canvasDetailAgentModelId: null,
-    lovartComposerPrefix: "让Buyi-ai",
+    lovartComposerPrefix: "让「由壹点AI」",
     lovartComposerPreviewTexts: [
       "打造引人注目的社交媒体视觉",
       "帮我把这张产品图做成高级电商海报",
@@ -2181,7 +2181,7 @@ export function AdminSettingsClient() {
         defaultTheme: siteSettingsData.defaultTheme || "system",
         bannerEnabled: siteSettingsData.bannerEnabled ?? true,
         bannerText:
-          siteSettingsData.bannerText || "升级会员, Nano Banana Pro 免费365天!",
+          siteSettingsData.bannerText || "限时特惠：升级会员最高立享 45% OFF!",
         bannerLink: siteSettingsData.bannerLink || null,
         toolbox1Name: siteSettingsData.toolbox1Name || "工具箱",
         toolbox1Enabled: siteSettingsData.toolbox1Enabled ?? true,
@@ -2269,7 +2269,7 @@ export function AdminSettingsClient() {
           (siteSettingsData as any).canvasDetailAgentModelId || null,
         lovartComposerPrefix:
           String((siteSettingsData as any).lovartComposerPrefix || "").trim() ||
-          "让Buyi-ai",
+          "让「由壹点AI」",
         lovartComposerPreviewTexts: Array.isArray(
           siteSettingsData.lovartComposerPreviewTexts
         )
@@ -9905,7 +9905,7 @@ export function AdminSettingsClient() {
                         lovartComposerPrefix: e.target.value.slice(0, 40),
                       })
                     }
-                    placeholder="让Buyi-ai"
+                    placeholder="让「由壹点AI」"
                     value={siteSettings.lovartComposerPrefix}
                   />
                   <div className="text-muted-foreground text-xs">
diff --git a/app/api/site-settings/route.ts b/app/api/site-settings/route.ts
index 9e50c0c46..40d3de440 100644
--- a/app/api/site-settings/route.ts
+++ b/app/api/site-settings/route.ts
@@ -382,7 +382,7 @@ function normalizeLovartComposerPreviewTexts(value: unknown): string[] {
 function normalizeLovartComposerPrefix(value: unknown): string {
   const normalized = String(value || "").trim();
   if (!normalized) {
-    return "让Buyi-ai";
+    return "让「由壹点AI」";
   }
   return normalized.slice(0, 40);
 }
@@ -538,7 +538,7 @@ const HOME_SITE_SETTINGS_FALLBACK: Record<string, unknown> = {
   lovartHeroSubtitle: "懂你的设计代理，帮你搞定一切",
   surpriseCategories: ["全部", "精选"],
   canvasDefaultModelId: null,
-  lovartComposerPrefix: "让Buyi-ai",
+  lovartComposerPrefix: "让「由壹点AI」",
   lovartComposerPreviewTexts: [],
   lovartPromptTagVisibility: {},
   contactConfig: normalizeContactConfig(undefined),
@@ -844,7 +844,7 @@ async function getScopedPublicSiteSettings(
       ...createBrandingSettings(typedSettings),
       bannerEnabled: typedSettings?.bannerEnabled ?? true,
       bannerText:
-        typedSettings?.bannerText || "升级会员, Nano Banana Pro 免费365天!",
+        typedSettings?.bannerText || "限时特惠：升级会员最高立享 45% OFF!",
       bannerLink: typedSettings?.bannerLink || null,
       lovartComposerPrefix: normalizeLovartComposerPrefix(
         valueByKey.get(LOVART_COMPOSER_PREFIX_KEY)
@@ -1376,7 +1376,7 @@ export async function GET(request: NextRequest) {
         usageTimeEnd: "20:00",
         usageTimeMessage: "由壹点累了也是需要休息的",
         bannerEnabled: true,
-        bannerText: "升级会员, Nano Banana Pro 免费365天!",
+        bannerText: "限时特惠：升级会员最高立享 45% OFF!",
         bannerLink: null,
         toolbox1Name: "工具箱",
         toolbox1Enabled: true,
@@ -2959,7 +2959,7 @@ export async function PUT(request: NextRequest) {
           usageTimeEnd: siteSettingsPayload.usageTimeEnd ?? "20:00",
           usageTimeMessage: siteSettingsPayload.usageTimeMessage ?? "由壹点累了也是需要休息的",
           bannerEnabled: siteSettingsPayload.bannerEnabled ?? true,
-          bannerText: siteSettingsPayload.bannerText ?? "升级会员, Nano Banana Pro 免费365天!",
+          bannerText: siteSettingsPayload.bannerText ?? "限时特惠：升级会员最高立享 45% OFF!",
           bannerLink: siteSettingsPayload.bannerLink,
           toolbox1Name: siteSettingsPayload.toolbox1Name ?? "工具箱",
           toolbox1Enabled: siteSettingsPayload.toolbox1Enabled ?? true,
diff --git a/app/canvas/[id]/CanvasEditorLegacyPageClient.tsx b/app/canvas/[id]/CanvasEditorLegacyPageClient.tsx
index 6873c28db..596a030f2 100644
--- a/app/canvas/[id]/CanvasEditorLegacyPageClient.tsx
+++ b/app/canvas/[id]/CanvasEditorLegacyPageClient.tsx
@@ -57,6 +57,7 @@ import {
   ZoomOut,
 } from "lucide-react";
 import dynamic from "next/dynamic";
+import { useTheme } from "next-themes";
 import { useParams, useRouter, useSearchParams } from "next/navigation";
 import {
   type ChangeEvent,
@@ -244,6 +245,7 @@ import type {
 
 const CANVAS_SITE_SETTINGS_REFRESH_INTERVAL_MS = 15000;
 const CANVAS_SITE_SETTINGS_TIMEOUT_MS = 10000;
+const CANVAS_SURFACE_BACKGROUND = "#f4f4f5";
 
 const fetchCanvasSiteSettings = async (url: string) => {
   const separator = url.includes("?") ? "&" : "?";
@@ -1122,7 +1124,7 @@ function normalizeImportedCanvasState(payload: unknown): {
   };
 }
 
-const FLOATING_PANEL_WIDTH = 460;
+const FLOATING_PANEL_WIDTH = 400;
 const FLOATING_PANEL_INSET = 16;
 const DOCKED_PANEL_INSET = 0;
 const FLOATING_UI_GAP = 16;
@@ -1710,6 +1712,7 @@ export default function CanvasEditorLegacyPage({ params }: PageProps) {
       ? routeId
       : "";
   const router = useRouter();
+  const { resolvedTheme } = useTheme();
   const mode = searchParams.get("mode");
   const requestedWorkspaceType = searchParams.get("workspaceType");
   const requestedAgentMode = mode === "agent";
@@ -1719,6 +1722,8 @@ export default function CanvasEditorLegacyPage({ params }: PageProps) {
   const activeCanvasWorkspaceType: CanvasWorkspaceType = isVideoMode
     ? "video"
     : "canvas";
+  const canvasSurfaceBackground =
+    resolvedTheme === "dark" ? "#0a0a0c" : CANVAS_SURFACE_BACKGROUND;
   const defaultCanvasTitle = isVideoMode ? "未命名视频画布" : "未命名画布";
   const workspaceLabel = isVideoMode ? "视频画布" : "画布";
   const createNewCanvasUrl = isVideoMode
@@ -8952,7 +8957,7 @@ export default function CanvasEditorLegacyPage({ params }: PageProps) {
   const brandEntry = (
     <div
       className="absolute top-4 left-4 z-20 rounded-full px-1 py-1 shadow-none"
-      style={{ backgroundColor: "var(--background)" }}
+      style={{ backgroundColor: canvasSurfaceBackground }}
     >
       <Button
         className="h-9 gap-2 rounded-full border-0 bg-transparent px-2.5 shadow-none hover:bg-transparent hover:text-foreground"
@@ -9365,7 +9370,15 @@ export default function CanvasEditorLegacyPage({ params }: PageProps) {
 
   return (
     <TooltipProvider>
-      <div className="relative h-dvh w-full overflow-hidden overscroll-none bg-background">
+      <div
+        className="relative h-dvh w-full overflow-hidden overscroll-none"
+        style={
+          {
+            "--canvas-surface-background": canvasSurfaceBackground,
+            backgroundColor: canvasSurfaceBackground,
+          } as React.CSSProperties
+        }
+      >
         {/* 1. Canvas Layer (Full Screen) - 使用 key 强制在 id 变化时重新挂载 */}
         <div
           className="absolute inset-0 z-0"
diff --git a/components/canvas/CanvasChatPanel.tsx b/components/canvas/CanvasChatPanel.tsx
index 66239c741..2939389b2 100644
--- a/components/canvas/CanvasChatPanel.tsx
+++ b/components/canvas/CanvasChatPanel.tsx
@@ -24,9 +24,8 @@ import {
   type UiSurfaceSnapshot,
 } from "@/lib/ui-surface-protocol";
 import useSWR, { useSWRConfig } from "swr";
-import { Send, Loader2, ImagePlus, Paperclip, X, Plus, History, LayoutGrid, ArrowRightToLine, RefreshCw, Globe, Box, ArrowUp, Video, Sparkles, Check, ChevronDown, ChevronUp, AlertCircle, CheckCircle2, Brain, ThumbsUp, ThumbsDown, Eye, Trash2, Download, MessageCircle, Clapperboard, Bot } from "lucide-react";
+import { Loader2, ImagePlus, X, Plus, History, LayoutGrid, ArrowRightToLine, RefreshCw, Globe, ArrowUp, Video, Sparkles, Check, ChevronDown, ChevronUp, AlertCircle, CheckCircle2, Brain, ThumbsUp, ThumbsDown, Eye, Trash2, Download, MessageCircle, Clapperboard, Bot } from "lucide-react";
 import { Button } from "@/components/ui/button";
-import { Textarea } from "@/components/ui/textarea";
 import {
   Collapsible,
   CollapsibleContent,
@@ -349,7 +348,7 @@ type VideoStoryboardStreamData =
 
 // 建议卡片数据 - 已移除
 const SUGGESTIONS: { title: string; desc: string; image: string }[] = [];
-const CANVAS_COMPOSER_PREFIX_DEFAULT = "让Buyi-ai";
+const CANVAS_COMPOSER_PREFIX_DEFAULT = "让「由壹点AI」";
 const CANVAS_COMPOSER_PREVIEW_TEXTS_DEFAULT = [
   "打造引人注目的社交媒体视觉",
   "帮我把这张产品图做成高级电商海报",
@@ -972,6 +971,7 @@ export function CanvasChatPanel({
   const inFlightRawChatIdRef = useRef<string | null>(null);
   const [chatSessions, setChatSessions] = useState<CanvasChatSession[]>([]);
   const [isSessionMenuOpen, setIsSessionMenuOpen] = useState(false);
+  const [isComposerModeMenuOpen, setIsComposerModeMenuOpen] = useState(false);
   const [selectedSkillTagId, setSelectedSkillTagId] = useState<string | null>(null);
   const [messageViewportKey, setMessageViewportKey] = useState(0);
   const messagesEndRef = useRef<HTMLDivElement>(null);
@@ -2031,6 +2031,7 @@ export function CanvasChatPanel({
   const [canvasTypedPreviewText, setCanvasTypedPreviewText] = useState("");
   const [canvasPreviewCursorVisible, setCanvasPreviewCursorVisible] = useState(true);
   const [greetingPeriodText, setGreetingPeriodText] = useState("中午好！");
+  const [isCanvasBannerDismissed, setIsCanvasBannerDismissed] = useState(false);
   useEffect(() => {
     const hour = new Date().getHours();
     if (hour >= 5 && hour < 11) {
@@ -2141,8 +2142,12 @@ export function CanvasChatPanel({
   const canUseDetailGeneration = aiDetailGenerationEnabled && !isVideoWorkspace;
   const shouldShowCanvasBanner =
     !isDetailGenerationMode &&
+    !isCanvasBannerDismissed &&
     (siteSettings?.bannerEnabled ?? true) &&
-    Boolean(siteSettings?.bannerText || "升级会员, Nano Banana Pro 免费365天!");
+    Boolean(siteSettings?.bannerText || "限时特惠：升级会员最高立享 45% OFF!");
+  useEffect(() => {
+    setIsCanvasBannerDismissed(false);
+  }, [siteSettings?.bannerEnabled, siteSettings?.bannerText]);
   const canvasSkillTagsEnabled = canvasSkillTagsData?.enabled !== false;
   const canvasSkillTagsTitle =
     String(canvasSkillTagsData?.title || "").trim() || DEFAULT_CANVAS_SKILL_TAGS_TITLE;
@@ -2730,14 +2735,14 @@ export function CanvasChatPanel({
   );
   const activeModeLabel =
     activeComposerMode === "video"
-      ? getToolbarItem("chatModeVideoActive").label
+      ? "视频"
       : activeComposerMode === "detail"
         ? getToolbarItem("chatModeDetailActive").label
       : activeComposerMode === "image"
-          ? getToolbarItem("chatModeImageActive").label
+          ? "图像"
           : isPresetAgentSelection
             ? getToolbarItem("chatModePresetAgent").label
-            : getToolbarItem("chatModeAgentActive").label;
+            : "Agent";
   const shouldMaskAgentRuntimeModelName =
     activeComposerMode === "agent" || selectedModelId === "auto";
   const getAgentSafeModelName = useCallback(
@@ -3963,9 +3968,11 @@ export function CanvasChatPanel({
 
         setMessages(sortCanvasMessagesByCreatedAt(dbMessages));
 
-        requestAnimationFrame(() => {
-          messagesEndRef.current?.scrollIntoView({ behavior: "auto", block: "end" });
-        });
+        if (dbMessages.length > 0) {
+          requestAnimationFrame(() => {
+            messagesEndRef.current?.scrollIntoView({ behavior: "auto", block: "end" });
+          });
+        }
       };
 
       const reloadMessagesOnce = async () => {
@@ -4149,19 +4156,21 @@ export function CanvasChatPanel({
     setMessageViewportKey((prev) => prev + 1);
     console.log("[CanvasChat] 已同步历史消息:", historyMessages.length, signature);
 
-    requestAnimationFrame(() => {
-      messagesEndRef.current?.scrollIntoView({ behavior: "auto", block: "end" });
-    });
-    historyScrollTimerRef.current = setTimeout(() => {
-      messagesEndRef.current?.scrollIntoView({ behavior: "auto", block: "end" });
-      historyScrollTimerRef.current = null;
-    }, 160);
-    return () => {
-      if (historyScrollTimerRef.current) {
-        clearTimeout(historyScrollTimerRef.current);
+    if (historyMessages.length > 0) {
+      requestAnimationFrame(() => {
+        messagesEndRef.current?.scrollIntoView({ behavior: "auto", block: "end" });
+      });
+      historyScrollTimerRef.current = setTimeout(() => {
+        messagesEndRef.current?.scrollIntoView({ behavior: "auto", block: "end" });
         historyScrollTimerRef.current = null;
-      }
-    };
+      }, 160);
+      return () => {
+        if (historyScrollTimerRef.current) {
+          clearTimeout(historyScrollTimerRef.current);
+          historyScrollTimerRef.current = null;
+        }
+      };
+    }
   }, [historyData, rawChatId, setMessages, status]);
 
   useEffect(() => {
@@ -4625,6 +4634,7 @@ export function CanvasChatPanel({
 
   // 滚动到底部
   useEffect(() => {
+    if (messages.length === 0) return;
     messagesEndRef.current?.scrollIntoView({ behavior: "smooth" });
   }, [messages]);
 
@@ -7793,7 +7803,7 @@ export function CanvasChatPanel({
       : selectedSkillTag?.placeholder?.trim() ||
         (selectedSkillTag
           ? `请输入「${selectedSkillTag.name}」相关需求`
-          : canvasDynamicPlaceholder || "请输入你的设计需求，例如：绿色椅子 替换 Image");
+          : "请输入你的设计需求");
   const detailProductCount = DETAIL_PRODUCT_SLOT_INDEXES.filter((index) => Boolean(detailSlots[index]?.url)).length;
   const detailModelReady = DETAIL_MODEL_SLOT_INDEX >= 0 ? Boolean(detailSlots[DETAIL_MODEL_SLOT_INDEX]?.url) : false;
   const detailBundleCount = DETAIL_BUNDLE_SLOT_INDEXES.filter((index) => Boolean(detailSlots[index]?.url)).length;
@@ -7915,6 +7925,13 @@ export function CanvasChatPanel({
     renderableVisibleMessages.length === 0 &&
     !isLoading &&
     !shouldShowImageLoading;
+  const isPlainCanvasEmptyState =
+    !isWorkspacePresentation &&
+    !isDetailGenerationMode &&
+    !isVideoWorkspace &&
+    renderableVisibleMessages.length === 0 &&
+    !isLoading &&
+    !shouldShowImageLoading;
   const workspaceEmptyTitle =
     activeComposerMode === "agent" && !isPresetAgentSelection
     ? "开始 Auto Agent 对话"
@@ -7991,13 +8008,13 @@ export function CanvasChatPanel({
   const renderModelSelectContent = () => (
     <SelectContent
       className={cn(
-        "w-[238px] max-h-[340px] overflow-hidden p-1.5",
+        "w-[170px] max-h-[320px] overflow-hidden rounded-[14px] border border-[#cfd4dc] bg-white p-0 text-[#252b33] shadow-[0_18px_44px_rgba(15,23,42,0.16)]",
         isVideoWorkspace
-          ? "rounded-[18px] border border-border/60 bg-background/95 shadow-[0_18px_40px_-24px_rgba(15,23,42,0.35)] backdrop-blur-xl"
-          : "rounded-[18px] border border-[#cfd4dc] bg-[#f3f4f6]/90 shadow-[0_8px_20px_rgba(15,23,42,0.13)] dark:border-white/10 dark:bg-zinc-900/95"
+          ? "rounded-[14px] border border-border/60 bg-background/95 shadow-[0_14px_30px_-20px_rgba(15,23,42,0.35)] backdrop-blur-xl"
+          : "dark:border-white/10 dark:bg-zinc-900/95 dark:text-zinc-100"
       )}
     >
-      <div className="max-h-[312px] space-y-0.5 overflow-y-auto pr-1">
+      <div className="max-h-[304px] space-y-0.5 overflow-y-auto p-1.5">
         {selectableModels.map((model) => {
           const discountLabel = getImageModelCreditDiscountLabel(
             model.imageGenConfig
@@ -8009,10 +8026,10 @@ export function CanvasChatPanel({
             value={model.id}
             disabled={model.selectable === false}
             className={cn(
-              "h-[34px] rounded-xl px-2.5 [&>span:first-child]:hidden [&>span:last-child]:block [&>span:last-child]:w-full",
+              "h-8 rounded-[10px] px-2 text-[13px] font-medium [&>span:first-child]:hidden [&>span:last-child]:block [&>span:last-child]:w-full",
               isVideoWorkspace
                 ? "text-foreground focus:bg-background focus:text-foreground data-[state=checked]:bg-background data-[state=checked]:text-foreground"
-                : "text-[#2f3640] focus:bg-[#e7ebf0] focus:text-[#1f2937] data-[state=checked]:bg-[#e7ebf0] data-[state=checked]:text-[#1f2937] dark:text-zinc-100 dark:focus:bg-white/10 dark:focus:text-white dark:data-[state=checked]:bg-white/10 dark:data-[state=checked]:text-white",
+                : "text-[#2f3640] focus:bg-[#f4f5f6] focus:text-[#1f2937] data-[state=checked]:bg-transparent data-[state=checked]:text-[#1f2937] dark:text-zinc-100 dark:focus:bg-white/10 dark:focus:text-white dark:data-[state=checked]:text-white",
               model.selectable === false && "opacity-55"
             )}
           >
@@ -8020,10 +8037,10 @@ export function CanvasChatPanel({
               <span className="flex min-w-0 items-center gap-2">
                 <span
                   className={cn(
-                    "h-5 w-5 overflow-hidden rounded-full",
+                    "h-4 w-4 overflow-hidden rounded-full",
                     isVideoWorkspace
                       ? "border border-border/60 bg-background"
-                      : "border border-[#d4d9df] bg-white dark:border-white/20 dark:bg-white"
+                      : "border border-transparent bg-white dark:border-white/20 dark:bg-white"
                   )}
                 >
                   {model.avatarUrl ? (
@@ -8050,13 +8067,13 @@ export function CanvasChatPanel({
                     </span>
                   )}
                 </span>
-                <span className="truncate text-[12px] font-medium leading-none">{model.displayName}</span>
+                <span className="truncate text-[13px] font-medium leading-none">{model.displayName}</span>
               </span>
-              <span className="flex shrink-0 items-center gap-1.5">
+              <span className="flex shrink-0 items-center gap-1">
                 {discountLabel ? (
                   <span
                     className={cn(
-                      "rounded-md border px-1.5 py-0.5 text-[10px] font-semibold leading-none",
+                      "rounded-[5px] border px-1 py-0.5 text-[8px] font-semibold leading-none",
                       isVideoWorkspace
                         ? "border-border/70 bg-muted/80 text-foreground/80"
                         : "border-[#d0d4dc] bg-[#eef1f5] text-[#5c6574] dark:border-white/15 dark:bg-white/10 dark:text-zinc-200"
@@ -8068,7 +8085,7 @@ export function CanvasChatPanel({
                 {model.availabilityLabel ? (
                   <span
                     className={cn(
-                      "rounded-md border px-1.5 py-0.5 text-[10px] font-semibold leading-none",
+                      "rounded-[5px] border px-1 py-0.5 text-[8px] font-semibold leading-none",
                       model.availabilityStatus === "maintenance"
                         ? isVideoWorkspace
                           ? "border-amber-400/30 bg-amber-500/10 text-amber-300"
@@ -8082,14 +8099,7 @@ export function CanvasChatPanel({
                   </span>
                 ) : null}
                 {modelSelectValue === model.id ? (
-                  <span
-                    className={cn(
-                      "text-sm font-semibold",
-                      isVideoWorkspace ? "text-foreground" : "text-[#1f2937]"
-                    )}
-                  >
-                    ✓
-                  </span>
+                  <Check className={cn("h-3.5 w-3.5", isVideoWorkspace ? "text-foreground" : "text-[#1f2937]")} />
                 ) : null}
               </span>
             </span>
@@ -8099,7 +8109,7 @@ export function CanvasChatPanel({
         {selectableModels.length === 0 ? (
           <div
             className={cn(
-              "px-2 py-2 text-xs",
+              "flex h-9 items-center px-2 text-[12px]",
               isVideoWorkspace ? "text-muted-foreground" : "text-[#6b7280]"
             )}
           >
@@ -8341,14 +8351,20 @@ export function CanvasChatPanel({
       <div
         key={`${activeChatId}-${messageViewportKey}`}
         className={cn(
-          "flex-1 min-h-0 overflow-y-auto overflow-x-hidden",
+          "flex-1 min-h-0 overflow-x-hidden",
+          isPlainCanvasEmptyState ? "overflow-hidden" : "overflow-y-auto",
           isWorkspacePresentation ? "p-6" : "p-4",
-          isDetailGenerationMode && renderableVisibleMessages.length === 0
-            ? "pt-10"
-            : "pt-4"
+          isPlainCanvasEmptyState
+            ? "pt-0"
+            : isDetailGenerationMode && renderableVisibleMessages.length === 0
+              ? "pt-10"
+              : "pt-4"
         )}
       >
-        <div className="space-y-6 overflow-x-hidden pb-24 pr-1">
+        <div className={cn(
+          "space-y-6 overflow-x-hidden pr-1",
+          isPlainCanvasEmptyState ? "h-full pb-0" : "pb-24"
+        )}>
           {!isDetailGenerationMode && renderableVisibleMessages.length === 0 ? (
             isWorkspacePresentation ? (
               <div className="flex h-full min-h-[360px] items-center justify-center">
@@ -8390,7 +8406,13 @@ export function CanvasChatPanel({
                 </div>
               </div>
             ) : (
-              <div className={cn("flex flex-col h-full", isDetailGenerationMode ? "pt-0" : "pt-4")}>
+              <div
+                className={cn(
+                  "flex h-full flex-col",
+                  isPlainCanvasEmptyState ? "min-h-0" : "min-h-[360px]",
+                  isDetailGenerationMode ? "pt-0" : "pt-4"
+                )}
+              >
                 {isVideoWorkspace ? (
                   <div className="mb-8 rounded-[30px] border border-border/60 bg-background/82 p-5 shadow-[0_22px_50px_-32px_rgba(15,23,42,0.35)] backdrop-blur-xl">
                     <div className="flex items-start gap-3">
@@ -8460,41 +8482,31 @@ export function CanvasChatPanel({
                     ) : null}
                   </div>
                 ) : (
-                  <>
-                    <div className={cn(isDetailGenerationMode ? "mb-4" : "mb-8")}>
-                      <h1 className="mb-2 text-2xl font-bold">
-                        <span>Hi</span>
+                  <div className="flex flex-1 flex-col px-7 pt-12 pb-12">
+                    <div className="text-left">
+                      <h1 className="text-[24px] font-semibold leading-tight tracking-tight text-[#050505] dark:text-zinc-50">
+                        Hi,{" "}
                         {greetingUserName ? (
-                          <>
-                            <span>, </span>
-                            <span className="text-blue-600">{greetingUserName}</span>
-                            <span> {greetingPeriodText}</span>
-                          </>
-                        ) : (
-                          <span> {greetingPeriodText}</span>
-                        )}
+                          <span className="text-[#2563ff]">{greetingUserName}</span>
+                        ) : null}{" "}
+                        {greetingPeriodText}
                       </h1>
-                      <p className="text-muted-foreground">
-                        开始创作吧!
-                        {Number.isFinite(totalGeneratedImages) ? (
-                          <>
-                            {" "}累计为你生成了{" "}
-                            <span className="text-blue-600 font-semibold">
-                              {totalGeneratedImages.toLocaleString()}
-                            </span>{" "}
-                            张图。
-                          </>
-                        ) : null}
+                      <p className="mt-3 text-[15px] font-normal leading-6 text-[#6b7280] dark:text-zinc-400">
+                        开始创作吧! 累计为你生成了{" "}
+                        <span className="font-semibold text-[#2563ff]">
+                          {Number.isFinite(totalGeneratedImages) ? totalGeneratedImages : 0}
+                        </span>{" "}
+                        张图。
                       </p>
                     </div>
 
-                    {canvasSkillTags.length > 0 && (
-                      <div className="mb-8 rounded-3xl border border-[#eceef2] bg-white/90 p-4 dark:border-white/10 dark:bg-zinc-900/75">
-                        <div className="mb-3 text-center">
-                          <h3 className="text-[16px] font-semibold text-[#1f2937] dark:text-zinc-100">{canvasSkillTagsTitle}</h3>
-                        </div>
-                        <div className="grid grid-cols-3 gap-2">
-                          {canvasSkillTags.map((tag) => {
+                    {canvasSkillTags.length > 0 ? (
+                      <div className="mt-8 rounded-[26px] border border-[#e4e7ec] bg-white px-5 py-6 text-center dark:border-white/10 dark:bg-zinc-950/70">
+                        <h3 className="text-[16px] font-semibold leading-none text-[#1f2328] dark:text-zinc-100">
+                          预设快捷功能
+                        </h3>
+                        <div className="mt-6 flex flex-wrap justify-center gap-2">
+                          {canvasSkillTags.slice(0, 4).map((tag) => {
                             const isActive = selectedSkillTag?.id === tag.id;
                             const TagIcon = getCanvasSkillIconComponent(tag.iconName);
                             return (
@@ -8507,17 +8519,17 @@ export function CanvasChatPanel({
                                   editor?.focus();
                                 }}
                                 className={cn(
-                                  "inline-flex min-w-0 items-center justify-center gap-1.5 rounded-2xl border px-2 py-1.5 text-[13px] font-medium transition-colors",
+                                  "inline-flex h-[34px] max-w-full items-center justify-center gap-1.5 rounded-full border px-3.5 text-[13px] font-medium leading-none transition-colors",
                                   isActive
-                                    ? "border-[#6d7fff] bg-[#eef1ff] text-[#3341a9] dark:border-blue-400/40 dark:bg-blue-500/15 dark:text-blue-200"
-                                    : "border-[#e4e7ec] bg-white text-[#30343b] hover:border-[#d6dae3] hover:bg-[#fafbfc] dark:border-white/10 dark:bg-white/5 dark:text-zinc-200 dark:hover:border-white/20 dark:hover:bg-white/10"
+                                    ? "border-[#d8dce4] bg-[#f7f8fa] text-[#1f2328] dark:border-blue-400/40 dark:bg-blue-500/15 dark:text-blue-200"
+                                    : "border-[#e5e7eb] bg-white text-[#1f2328] hover:border-[#d6dae3] hover:bg-[#fafbfc] dark:border-white/10 dark:bg-white/5 dark:text-zinc-200 dark:hover:border-white/20 dark:hover:bg-white/10"
                                 )}
                               >
                                 {tag.iconUrl ? (
                                   <img
-                                    src={buildPreviewImageUrl(tag.iconUrl, 48)}
+                                    src={buildPreviewImageUrl(tag.iconUrl, 40)}
                                     alt={tag.name}
-                                    className="h-3.5 w-3.5 rounded-sm object-cover"
+                                    className="h-4 w-4 rounded-sm object-cover"
                                     loading="lazy"
                                     decoding="async"
                                     onError={(event) => {
@@ -8527,7 +8539,7 @@ export function CanvasChatPanel({
                                     }}
                                   />
                                 ) : (
-                                  <TagIcon className="h-3.5 w-3.5 text-current opacity-70" />
+                                  <TagIcon className="h-4 w-4 text-current opacity-70" />
                                 )}
                                 <span className="truncate">{tag.name}</span>
                               </button>
@@ -8535,8 +8547,8 @@ export function CanvasChatPanel({
                           })}
                         </div>
                       </div>
-                    )}
-                  </>
+                    ) : null}
+                  </div>
                 )}
               </div>
             )
@@ -9093,11 +9105,11 @@ export function CanvasChatPanel({
       )}
 
       {!isWorkspacePresentation && shouldShowCanvasBanner ? (
-        <div className="px-4 pb-2">
+        <div className="px-[10px] pb-0">
           <div
             className={cn(
-              "bg-blue-50 dark:bg-blue-900/20 text-blue-600 dark:text-blue-300 p-3 rounded-xl text-sm flex items-center justify-between",
-              siteSettings?.bannerLink && "cursor-pointer hover:bg-blue-100 dark:hover:bg-blue-900/30 transition-colors"
+              "relative z-10 mb-0 flex h-[48px] items-center justify-between gap-2 rounded-[28px] bg-[#f4f4f5] px-4 py-0 text-[14px] font-medium leading-5 text-[#20242a] dark:bg-zinc-900 dark:text-zinc-100",
+              siteSettings?.bannerLink && "cursor-pointer transition-colors hover:bg-[#eeeeef] dark:hover:bg-zinc-800"
             )}
             onClick={() => {
               if (siteSettings?.bannerLink) {
@@ -9105,13 +9117,23 @@ export function CanvasChatPanel({
               }
             }}
           >
-            <div className="flex items-center gap-2">
-              <div className="p-1 bg-blue-100 dark:bg-blue-800 rounded">
-                <Box className="h-4 w-4" />
+            <div className="flex min-w-0 items-center gap-2.5">
+              <div className="flex h-7 w-7 shrink-0 items-center justify-center rounded-[9px] bg-[#e8ff38] text-[#111827]">
+                <Sparkles className="h-3.5 w-3.5 fill-current" />
               </div>
-              <span>{siteSettings?.bannerText || "升级会员, Nano Banana Pro 免费365天!"}</span>
+              <span className="min-w-0 truncate">{siteSettings?.bannerText || "限时特惠：升级会员最高立享 45% OFF!"}</span>
             </div>
-            <X className="h-4 w-4 cursor-pointer opacity-50 hover:opacity-100" onClick={(e) => e.stopPropagation()} />
+            <button
+              type="button"
+              className="flex h-7 w-7 shrink-0 items-center justify-center rounded-full text-[#20242a]/75 transition-colors hover:bg-black/5 hover:text-[#20242a] dark:text-zinc-100/75 dark:hover:bg-white/10 dark:hover:text-zinc-100"
+              aria-label="关闭优惠广告"
+              onClick={(event) => {
+                event.stopPropagation();
+                setIsCanvasBannerDismissed(true);
+              }}
+            >
+              <X className="h-5 w-5" />
+            </button>
           </div>
         </div>
       ) : null}
@@ -9119,14 +9141,16 @@ export function CanvasChatPanel({
       {/* 底部输入区域 - 混合输入（图片标签+文字可自由混合） */}
       <div
         className={cn(
-          "border-t",
           isWorkspacePresentation
-            ? "bg-white/92 p-5 backdrop-blur-sm dark:bg-zinc-950/92"
-            : "bg-white p-4 dark:bg-zinc-950"
+            ? "border-t bg-white/92 p-5 backdrop-blur-sm dark:bg-zinc-950/92"
+            : "bg-white px-[10px] pb-[10px] pt-0 dark:bg-zinc-950"
         )}
       >
         <div
-          className="relative flex flex-col rounded-3xl border bg-card transition-all duration-200 focus-within:border-primary/50 focus-within:bg-background dark:border-white/12 dark:bg-zinc-950 dark:focus-within:border-white/25 dark:focus-within:bg-zinc-950"
+          className={cn(
+            "relative flex flex-col overflow-hidden border border-[#e2e5ea] bg-white shadow-[0_22px_42px_-30px_rgba(15,23,42,0.48)] transition-all duration-200 focus-within:border-[#d8dde5] focus-within:shadow-[0_24px_48px_-30px_rgba(15,23,42,0.55)] dark:border-white/12 dark:bg-zinc-950 dark:focus-within:border-white/25",
+            "min-h-[184px] rounded-[28px]"
+          )}
           data-canvas-chat-input-anchor="true"
         >
           {isWorkspacePresentation && !isDetailGenerationMode ? (
@@ -9883,8 +9907,12 @@ export function CanvasChatPanel({
           {/* 混合输入区域：使用 contenteditable 实现真正的混合编辑 */}
           <div
             className={cn(
-              "relative px-3 pt-3 pb-12",
-              isDetailGenerationMode ? "min-h-[72px]" : "min-h-[60px]"
+              "relative px-3 pb-0 pt-3 sm:px-4",
+              isDetailGenerationMode
+                ? "min-h-[112px]"
+                : activeComposerMode === "image"
+                  ? "min-h-[118px]"
+                  : "min-h-[132px]"
             )}
           >
             {!isWorkspacePresentation && !isDetailGenerationMode && selectedSkillTag && (
@@ -10207,14 +10235,56 @@ export function CanvasChatPanel({
                 ) : null}
               </div>
             ) : null}
-            <div className="rounded-[22px] border border-[#d7deeb] bg-[#f8fafc] px-4 py-2.5 shadow-[0_12px_24px_-18px_rgba(15,23,42,0.35)] transition-colors focus-within:border-[#a6c8ff] focus-within:bg-white dark:border-zinc-600 dark:bg-zinc-900/60 dark:focus-within:bg-zinc-900">
+            {!isWorkspacePresentation && !isDetailGenerationMode && !isVideoWorkspace && activeComposerMode === "image" ? (
+              <button
+                type="button"
+                className="mx-4 mt-3 flex h-16 w-16 shrink-0 flex-col items-center justify-center gap-1.5 overflow-hidden rounded-[18px] bg-[#f3f3f4] text-[#a8adb5] transition-colors hover:bg-[#ececee] hover:text-[#7d848e] dark:bg-white/8 dark:text-zinc-400 dark:hover:bg-white/12"
+                onClick={() => fileInputRef.current?.click()}
+                disabled={isSubmitting}
+                title="添加参考图"
+              >
+                {attachments[0]?.url ? (
+                  <img
+                    src={buildPreviewImageUrl(attachments[0].url, 180)}
+                    alt={attachments[0].name || "参考图"}
+                    className="h-full w-full object-cover"
+                    loading="lazy"
+                    decoding="async"
+                    onError={(event) => {
+                      if (event.currentTarget.src !== attachments[0]?.url) {
+                        event.currentTarget.src = attachments[0]?.url || "";
+                      }
+                    }}
+                  />
+                ) : (
+                  <>
+                    <ImagePlus className="h-5 w-5" />
+                    <span className="text-[13px] font-medium leading-none">参考图</span>
+                  </>
+                )}
+              </button>
+            ) : null}
+            <div
+              className={cn(
+                isWorkspacePresentation || isDetailGenerationMode || isVideoWorkspace
+                  ? "px-1"
+                  : "px-4 pt-3"
+              )}
+            >
               <div
                 ref={textareaRef as any}
                 contentEditable={!isSubmitting}
                 suppressContentEditableWarning
                 className={cn(
-                  "min-h-[40px] max-h-[120px] overflow-y-auto text-sm leading-6 outline-none empty:before:content-[attr(data-placeholder)]",
-                  isVideoWorkspace ? "empty:before:text-muted-foreground/70" : "text-[#111827] empty:before:text-[#9aa1ad] dark:text-zinc-100 dark:empty:before:text-zinc-500"
+                  "max-h-[128px] overflow-y-auto outline-none empty:before:content-[attr(data-placeholder)]",
+                  isWorkspacePresentation || isDetailGenerationMode || isVideoWorkspace
+                    ? "min-h-[38px] text-[19px] leading-7 sm:text-[22px] sm:leading-8"
+                    : activeComposerMode === "image"
+                      ? "min-h-[44px] text-[16px] leading-7 sm:text-[16px] sm:leading-7"
+                      : "min-h-[64px] text-[16px] leading-7 sm:text-[17px] sm:leading-7",
+                  isVideoWorkspace
+                    ? "text-foreground empty:before:text-muted-foreground/70"
+                    : "text-[#1f2328] empty:before:text-[#a8abb2] dark:text-zinc-100 dark:empty:before:text-zinc-500"
                 )}
                 data-placeholder={composerPlaceholder}
                 onInput={(e) => {
@@ -10281,7 +10351,7 @@ export function CanvasChatPanel({
           </div>
 
           {hasAgentUploadSlots && (
-            <div className="mb-11 px-3 pb-1">
+            <div className="mb-3 px-3 pb-1">
               <div className="flex flex-row gap-2 overflow-x-auto scrollbar-hide">
                 {agentUploadSlots.map((slot, index) => {
                   const slotAttachment = attachments[index];
@@ -10349,7 +10419,7 @@ export function CanvasChatPanel({
           )}
 
           {isVideoModel && videoFrameSlots.length > 0 && (
-            <div className="mb-11 px-3 pb-1">
+            <div className="mb-3 px-3 pb-1">
               <div className="flex flex-row gap-2">
                 {videoFrameSlots.map((label, index) => {
                   const slotAttachment = attachments[index];
@@ -10419,10 +10489,10 @@ export function CanvasChatPanel({
           {/* Bottom Toolbar */}
           <div
             className={cn(
-              "absolute inset-x-2 bottom-2 z-10 flex items-center justify-between gap-3 rounded-[24px] border border-[#d7deeb] bg-[#fbfdff]/95 px-3 py-2 shadow-[0_10px_28px_-20px_rgba(15,23,42,0.32)] backdrop-blur-xl supports-[backdrop-filter]:bg-[#fbfdff]/90 dark:border-zinc-700 dark:bg-zinc-900/90 dark:shadow-[0_10px_28px_-20px_rgba(2,6,23,0.7)]"
+              "mt-auto flex min-h-[44px] items-center justify-between gap-1.5 px-3 pb-2 pt-1 dark:bg-zinc-950 sm:px-3 sm:pb-2"
             )}
           >
-            <div className="flex min-w-0 flex-1 items-center gap-2">
+            <div className="flex min-w-0 flex-1 items-center gap-1 overflow-x-auto pr-1 scrollbar-hide">
               <input
                 ref={fileInputRef}
                 type="file"
@@ -10459,56 +10529,75 @@ export function CanvasChatPanel({
                   }}
                 />
               ))}
+              {!isWorkspacePresentation && !isDetailGenerationMode && activeComposerMode !== "image" && (!isVideoModel || showVideoAttachmentButton) && (
+                <Button
+                  variant="ghost"
+                  size="icon"
+                  className={cn(
+                    "h-8 w-8 shrink-0 rounded-full border border-transparent text-[#20242a] transition-colors hover:bg-[#f3f4f6] hover:text-[#111418] dark:hover:border-zinc-500 dark:hover:bg-zinc-700/70",
+                    isVideoWorkspace
+                      ? "bg-background"
+                      : "dark:bg-white/8 dark:text-zinc-200 dark:hover:bg-white/12 dark:hover:text-white"
+                  )}
+                  onClick={() => fileInputRef.current?.click()}
+                  disabled={isSubmitting}
+                  title={getToolbarItem("chatAttach").label}
+                >
+                  <CanvasToolbarIcon
+                    className="h-4.5 w-4.5"
+                    fallback={Plus}
+                    item={getToolbarItem("chatAttach")}
+                  />
+                </Button>
+              )}
               {!isWorkspacePresentation ? (
-                <DropdownMenu>
+                <DropdownMenu
+                  open={isComposerModeMenuOpen}
+                  onOpenChange={setIsComposerModeMenuOpen}
+                >
                   <DropdownMenuTrigger asChild>
-                  <Button
-                    type="button"
-                    variant="ghost"
-                    className={cn(
-                      "relative h-8 cursor-pointer rounded-full px-3 text-sm font-medium",
-                      isVideoWorkspace
-                          ? "border border-[#cfd8e6] bg-[#f3f7ff] text-[#2f4f9e] shadow-[0_2px_8px_-4px_rgba(47,79,158,0.35)] hover:bg-[#e8f0ff] dark:border-zinc-500/60 dark:bg-zinc-800 dark:text-zinc-100 dark:hover:bg-zinc-700"
-                          : activeComposerMode === "video"
-                            ? "border border-blue-500 bg-blue-50 text-blue-600 hover:bg-blue-100 dark:border-blue-400/40 dark:bg-blue-500/15 dark:text-blue-200 dark:hover:bg-blue-500/20"
-                            : activeComposerMode === "detail"
-                              ? "border border-violet-500 bg-violet-50 text-violet-700 hover:bg-violet-100 dark:border-violet-400/40 dark:bg-violet-500/15 dark:text-violet-200 dark:hover:bg-violet-500/20"
-                            : activeComposerMode === "image"
-                              ? "border border-purple-500 bg-purple-50 text-purple-700 hover:bg-purple-100 dark:border-purple-400/40 dark:bg-purple-500/15 dark:text-purple-200 dark:hover:bg-purple-500/20"
-                              : "border border-[#9eb3ff] bg-white text-zinc-700 hover:bg-zinc-50 dark:border-white/10 dark:bg-white/8 dark:text-zinc-200 dark:hover:bg-white/12"
+                    <Button
+                      type="button"
+                      variant="ghost"
+                      className={cn(
+                        "relative h-9 max-w-[122px] shrink-0 cursor-pointer rounded-full px-2.5 text-[15px] font-medium outline-none focus:outline-none focus:ring-0 focus:ring-offset-0 focus-visible:outline-none focus-visible:ring-0 focus-visible:ring-offset-0",
+                        isVideoWorkspace
+                          ? "bg-muted/80 text-foreground hover:bg-muted dark:bg-zinc-800 dark:text-zinc-100 dark:hover:bg-zinc-700"
+                          : "bg-[#eeeeef] text-[#20242a] hover:bg-[#e7e7e8] dark:bg-white/10 dark:text-zinc-100 dark:hover:bg-white/14"
                       )}
                     >
-                      <span className="flex items-center">
+                      <span className="flex min-w-0 items-center">
                         {activeComposerMode === "video" ? (
                           <CanvasToolbarIcon
-                            className="mr-1 h-4 w-4"
+                            className="mr-1.5 h-5 w-5 shrink-0"
                             fallback={Video}
                             item={getToolbarItem("chatModeVideoActive")}
                           />
                         ) : activeComposerMode === "detail" ? (
                           <CanvasToolbarIcon
-                            className="mr-1 h-4 w-4"
+                            className="mr-1.5 h-5 w-5 shrink-0"
                             fallback={LayoutGrid}
                             item={getToolbarItem("chatModeDetailActive")}
                           />
                         ) : activeComposerMode === "image" ? (
                           <CanvasToolbarIcon
-                            className="mr-1 h-4 w-4"
+                            className="mr-1.5 h-5 w-5 shrink-0"
                             fallback={ImagePlus}
                             item={getToolbarItem("chatModeImageActive")}
                           />
                         ) : (
                           <CanvasToolbarIcon
-                            className="mr-1 h-4 w-4"
-                            fallback={Sparkles}
-                            item={getToolbarItem(
-                              isPresetAgentSelection
-                                ? "chatModePresetAgent"
-                                : "chatModeAgentActive"
-                            )}
+                            className="mr-1.5 h-5 w-5 shrink-0"
+                            fallback={Bot}
+                            item={null}
                           />
                         )}
-                        {activeModeLabel}
+                        <span className="min-w-0 truncate">{activeModeLabel}</span>
+                        {isComposerModeMenuOpen ? (
+                          <ChevronUp className="ml-1.5 h-3.5 w-3.5 shrink-0" />
+                        ) : (
+                          <ChevronDown className="ml-1.5 h-3.5 w-3.5 shrink-0" />
+                        )}
                       </span>
                     </Button>
                   </DropdownMenuTrigger>
@@ -10517,61 +10606,61 @@ export function CanvasChatPanel({
                     side="top"
                     sideOffset={10}
                     className={cn(
-                      "w-[156px] rounded-xl p-1.5",
+                      "w-[200px] rounded-[18px] border border-[#d8dce3] bg-white p-2 text-[#20242a] shadow-[0_22px_54px_rgba(15,23,42,0.16)]",
                       isVideoWorkspace
-                        ? "border border-border/60 bg-background/95 shadow-[0_18px_36px_-24px_rgba(15,23,42,0.35)] backdrop-blur-xl"
-                        : "border border-[#d6d9df] bg-[#f4f5f7]/90 shadow-[0_8px_18px_rgba(15,23,42,0.14)] dark:border-white/10 dark:bg-zinc-900/95"
+                        ? "border border-border/60 bg-background/95 shadow-[0_14px_30px_-20px_rgba(15,23,42,0.35)] backdrop-blur-xl"
+                        : "dark:border-white/10 dark:bg-zinc-900/95 dark:text-zinc-100"
                     )}
                   >
                     {effectiveAgentEnabled ? (
                       <DropdownMenuItem
                         onClick={() => handleSelectGenerationMode("agent")}
                         className={cn(
-                          "h-8 cursor-pointer rounded-lg px-2 text-[13px] font-medium",
+                          "h-11 cursor-pointer rounded-[12px] px-3 text-[16px] font-normal [&_svg]:!size-5",
                           isVideoWorkspace
                             ? "text-foreground"
                             : "text-[#2e3238] dark:text-zinc-100",
                           activeComposerMode === "agent"
                             ? isVideoWorkspace
                               ? "bg-background"
-                              : "bg-white/80 dark:bg-white/10"
+                              : "bg-transparent dark:bg-white/10"
                             : isVideoWorkspace
                               ? "hover:bg-background/80"
-                              : "hover:bg-white/70 dark:hover:bg-white/8"
+                              : "hover:bg-[#f5f6f7] dark:hover:bg-white/8"
                         )}
-                        >
-                          <CanvasToolbarIcon
-                            className="h-4 w-4"
-                            fallback={Sparkles}
-                            item={getToolbarItem("chatModeAgentMenu")}
-                          />
-                          <span className="flex-1">
-                            {getToolbarItem("chatModeAgentMenu").label}
-                          </span>
-                          {activeComposerMode === "agent" ? (
-                            <Check className={cn("h-4 w-4", isVideoWorkspace ? "text-primary" : "text-[#3b82f6]")} />
-                          ) : null}
-                        </DropdownMenuItem>
+                      >
+                        <CanvasToolbarIcon
+                          className="h-5 w-5"
+                          fallback={Bot}
+                          item={null}
+                        />
+                        <span className="flex-1">
+                          Agent
+                        </span>
+                        {activeComposerMode === "agent" ? (
+                          <Check className={cn("h-4 w-4", isVideoWorkspace ? "text-primary" : "text-[#1f2937]")} />
+                        ) : null}
+                      </DropdownMenuItem>
                     ) : null}
                     {canUseDetailGeneration ? (
                       <DropdownMenuItem
                         onClick={() => handleSelectGenerationMode("detail")}
                         className={cn(
-                          "h-8 cursor-pointer rounded-lg px-2 text-[13px] font-medium",
+                          "h-11 cursor-pointer rounded-[12px] px-3 text-[16px] font-normal [&_svg]:!size-5",
                           isVideoWorkspace
                             ? "text-foreground"
                             : "text-[#2e3238] dark:text-zinc-100",
                           activeComposerMode === "detail"
                             ? isVideoWorkspace
                               ? "bg-background"
-                              : "bg-white/80 dark:bg-white/10"
+                              : "bg-transparent dark:bg-white/10"
                             : isVideoWorkspace
                               ? "hover:bg-background/80"
-                              : "hover:bg-white/70 dark:hover:bg-white/8"
+                              : "hover:bg-[#f5f6f7] dark:hover:bg-white/8"
                         )}
                       >
                         <CanvasToolbarIcon
-                          className="h-4 w-4"
+                          className="h-5 w-5"
                           fallback={LayoutGrid}
                           item={getToolbarItem("chatModeDetailMenu")}
                         />
@@ -10579,92 +10668,70 @@ export function CanvasChatPanel({
                           {getToolbarItem("chatModeDetailMenu").label}
                         </span>
                         {activeComposerMode === "detail" ? (
-                          <Check className={cn("h-4 w-4", isVideoWorkspace ? "text-primary" : "text-[#3b82f6]")} />
+                          <Check className={cn("h-4 w-4", isVideoWorkspace ? "text-primary" : "text-[#1f2937]")} />
                         ) : null}
                       </DropdownMenuItem>
                     ) : null}
                     <DropdownMenuItem
                       onClick={() => handleSelectGenerationMode("image")}
                       className={cn(
-                        "h-8 cursor-pointer rounded-lg px-2 text-[13px] font-medium",
+                        "h-11 cursor-pointer rounded-[12px] px-3 text-[16px] font-normal [&_svg]:!size-5",
                         isVideoWorkspace
                           ? "text-foreground"
                           : "text-[#2e3238] dark:text-zinc-100",
                         activeComposerMode === "image"
                           ? isVideoWorkspace
                             ? "bg-background"
-                            : "bg-white/80 dark:bg-white/10"
+                            : "bg-transparent dark:bg-white/10"
                           : isVideoWorkspace
                             ? "hover:bg-background/80"
-                            : "hover:bg-white/70 dark:hover:bg-white/8"
+                            : "hover:bg-[#f5f6f7] dark:hover:bg-white/8"
                       )}
                     >
                       <CanvasToolbarIcon
-                        className="h-4 w-4"
+                        className="h-5 w-5"
                         fallback={ImagePlus}
                         item={getToolbarItem("chatModeImageMenu")}
                       />
                       <span className="flex-1">
-                        {getToolbarItem("chatModeImageMenu").label}
+                        图像
                       </span>
                       {activeComposerMode === "image" ? (
-                        <Check className={cn("h-4 w-4", isVideoWorkspace ? "text-primary" : "text-[#3b82f6]")} />
+                        <Check className={cn("h-4 w-4", isVideoWorkspace ? "text-primary" : "text-[#1f2937]")} />
                       ) : null}
                     </DropdownMenuItem>
                     <DropdownMenuItem
                       onClick={() => handleSelectGenerationMode("video")}
                       className={cn(
-                        "h-8 cursor-pointer rounded-lg px-2 text-[13px] font-medium",
+                        "h-11 cursor-pointer rounded-[12px] px-3 text-[16px] font-normal [&_svg]:!size-5",
                         isVideoWorkspace
                           ? "text-foreground"
                           : "text-[#2e3238] dark:text-zinc-100",
                         activeComposerMode === "video"
                           ? isVideoWorkspace
                             ? "bg-background"
-                            : "bg-white/80 dark:bg-white/10"
+                            : "bg-transparent dark:bg-white/10"
                           : isVideoWorkspace
                             ? "hover:bg-background/80"
-                            : "hover:bg-white/70 dark:hover:bg-white/8"
+                            : "hover:bg-[#f5f6f7] dark:hover:bg-white/8"
                       )}
                     >
                       <CanvasToolbarIcon
-                        className="h-4 w-4"
+                        className="h-5 w-5"
                         fallback={Video}
                         item={getToolbarItem("chatModeVideoMenu")}
                       />
                       <span className="flex-1">
-                        {getToolbarItem("chatModeVideoMenu").label}
+                        视频
                       </span>
                       {activeComposerMode === "video" ? (
-                        <Check className={cn("h-4 w-4", isVideoWorkspace ? "text-primary" : "text-[#3b82f6]")} />
+                        <Check className={cn("h-4 w-4", isVideoWorkspace ? "text-primary" : "text-[#1f2937]")} />
                       ) : null}
                     </DropdownMenuItem>
                   </DropdownMenuContent>
                 </DropdownMenu>
               ) : null}
 
-              {!isWorkspacePresentation && !isDetailGenerationMode && (!isVideoModel || showVideoAttachmentButton) && (
-                <Button
-                  variant="ghost"
-                  size="icon"
-                  className={cn(
-                    "h-8 w-8 rounded-full text-muted-foreground transition-colors hover:text-foreground mr-1 border border-transparent hover:border-[#cfd8e6] hover:bg-[#eef4ff] dark:hover:border-zinc-500 dark:hover:bg-zinc-700/70",
-                    isVideoWorkspace
-                      ? "bg-background"
-                      : "hover:bg-muted dark:bg-white/8 dark:text-zinc-200 dark:hover:bg-white/12 dark:hover:text-white"
-                  )}
-                  onClick={() => fileInputRef.current?.click()}
-                  disabled={isSubmitting}
-                  title={getToolbarItem("chatAttach").label}
-                >
-                  <CanvasToolbarIcon
-                    className="h-4 w-4"
-                    fallback={Paperclip}
-                    item={getToolbarItem("chatAttach")}
-                  />
-                </Button>
-              )}
-
               {isVideoModel ? (
                 <div className="min-w-0 flex-1 overflow-x-auto scrollbar-hide">
                   <div className="w-max pr-1 pl-1">
@@ -10678,49 +10745,24 @@ export function CanvasChatPanel({
                     />
                   </div>
                 </div>
-              ) : (
-                <div className="min-w-0 shrink pl-2 border-l border-[#d9e1f3]/70 dark:border-white/10 ml-1">
-                  <ImageParamsBar
-                    modelName={activeComposerMode === "agent" ? agentDisplayName : currentModel?.displayName}
-                    initialParams={imageParams}
-                    onParamsChange={handleImageParamsChange}
-                    inline={true}
-                    providerType={currentModel?.providerType}
-                    imageGenConfig={currentModel?.imageGenConfig || undefined}
-                    hideImageCount={activeComposerMode === "agent"}
-                    hideAdvancedOptions={activeComposerMode === "image"}
-                  />
-                </div>
-              )}
+              ) : null}
             </div>
 
-            <div className="flex shrink-0 items-center gap-2 pl-2 border-l border-[#d9e1f3]/70 dark:border-white/10">
-              {!isWorkspacePresentation && activeComposerMode === "image" ? (
-                <Button
-                  variant="ghost"
-                  size="icon"
-                  title={`${getToolbarItem("chatDeepThinking").label}：${deepThinkingEnabled ? "开" : "关"}`}
-                  className={cn(
-                    "h-8 w-8 shrink-0 rounded-full border-0 bg-transparent p-0 shadow-none transition-colors",
-                    isVideoWorkspace
-                      ? deepThinkingEnabled
-                        ? "bg-primary/10 text-primary hover:bg-primary/12"
-                        : "text-muted-foreground hover:bg-muted/70"
-                      : deepThinkingEnabled
-                        ? "bg-[#eef4ff] text-[#3b5bcc] hover:bg-[#e5efff] dark:bg-blue-500/15 dark:text-blue-200 dark:hover:bg-blue-500/20"
-                        : "text-[#6b7280] hover:bg-[#f4f6f8] dark:bg-white/8 dark:text-zinc-200 dark:hover:bg-white/12 dark:hover:text-white"
-                  )}
-                  onClick={() => setDeepThinkingEnabled((prev) => !prev)}
-                  disabled={isSubmitting}
-                >
-                  <CanvasToolbarIcon
-                    className="h-4 w-4"
-                    fallback={Brain}
-                    item={getToolbarItem("chatDeepThinking")}
-                  />
-                </Button>
+            <div className="flex shrink-0 items-center gap-1">
+              {!isVideoModel && !isWorkspacePresentation && activeComposerMode === "image" ? (
+                <ImageParamsBar
+                  modelName={currentModel?.displayName}
+                  initialParams={imageParams}
+                  onParamsChange={handleImageParamsChange}
+                  inline={true}
+                  providerType={currentModel?.providerType}
+                  imageGenConfig={currentModel?.imageGenConfig || undefined}
+                  hideImageCount={false}
+                  hideAdvancedOptions={true}
+                  inlineTheme="minimal"
+                  showInlineDivider={false}
+                />
               ) : null}
-
               {!isWorkspacePresentation && activeComposerMode !== "detail" ? (
                 <Select
                   value={modelSelectValue}
@@ -10748,22 +10790,22 @@ export function CanvasChatPanel({
                 >
                   <SelectTrigger
                     className={cn(
-                      "h-8 w-8 rounded-full p-0 justify-center [&>svg]:hidden",
+                      "h-8 w-8 shrink-0 justify-center rounded-full p-0 outline-none focus:outline-none focus:ring-0 focus:ring-offset-0 focus-visible:outline-none focus-visible:ring-0 focus-visible:ring-offset-0 [&>svg]:hidden",
                       isVideoWorkspace
-                        ? "border border-[#cfd8e6] bg-white/85 text-zinc-700 hover:bg-white dark:border-white/20 dark:bg-white dark:text-zinc-950 dark:hover:bg-zinc-100"
-                        : "border border-[#cfd4dc] bg-white dark:border-white/20 dark:bg-white dark:text-zinc-950 dark:hover:bg-zinc-100"
+                        ? "border border-[#cfd8e6] bg-white/85 text-zinc-700 hover:bg-white dark:border-white/12 dark:bg-[#242529] dark:text-zinc-100 dark:hover:bg-[#2c2d33]"
+                        : "border border-[#cfd4dc] bg-white text-[#20242a] dark:border-white/12 dark:bg-[#242529] dark:text-zinc-100 dark:hover:bg-[#2c2d33]"
                     )}
                     title={getToolbarItem("chatModelSelector").label}
                   >
                     <span
                       className={cn(
-                        "flex h-6 w-6 items-center justify-center overflow-hidden rounded-full",
-                        isVideoWorkspace ? "bg-background" : "bg-white dark:bg-white"
+                        "flex h-4 w-4 items-center justify-center overflow-hidden rounded-full",
+                        isVideoWorkspace ? "bg-background dark:bg-transparent" : "bg-white dark:bg-transparent"
                       )}
                     >
                       {getToolbarItem("chatModelSelector").iconUrl ? (
                         <CanvasToolbarIcon
-                          className="h-4 w-4"
+                          className="h-3 w-3"
                           fallback={Bot}
                           item={getToolbarItem("chatModelSelector")}
                         />
@@ -10783,8 +10825,8 @@ export function CanvasChatPanel({
                       ) : (
                         <span
                           className={cn(
-                            "flex h-full w-full items-center justify-center text-[10px] font-medium",
-                            isVideoWorkspace ? "text-foreground/70" : "text-[#4b5563] dark:text-zinc-950"
+                            "flex h-full w-full items-center justify-center text-[9px] font-medium",
+                            isVideoWorkspace ? "text-foreground/70 dark:text-zinc-100" : "text-[#4b5563] dark:text-zinc-100"
                           )}
                         >
                           {(selectDisplayModel?.displayName || "A").slice(0, 1)}
@@ -10799,7 +10841,7 @@ export function CanvasChatPanel({
               {estimatedPointsCost ? (
                 <div
                   className={cn(
-                    "flex h-8 items-center gap-1.5 rounded-full px-2.5 text-xs ml-2",
+                    "ml-0 flex h-7 max-w-[60px] shrink items-center gap-1 rounded-full px-2 text-[10px] sm:ml-1 sm:max-w-none sm:gap-1 sm:px-2 sm:text-[11px]",
                     isVideoWorkspace
                       ? "border border-border/60 bg-background text-muted-foreground"
                       : "bg-muted text-muted-foreground"
@@ -10807,14 +10849,14 @@ export function CanvasChatPanel({
                   title={estimatedPointsCost.title}
                 >
                   <CanvasToolbarIcon
-                    className="h-3.5 w-3.5"
+                    className="h-3 w-3"
                     fallback={Sparkles}
                     item={getToolbarItem("chatPoints")}
                   />
                   <span className="font-medium text-foreground">
                     {estimatedPointsCost.cost}
                   </span>
-                  <span>{getToolbarItem("chatPoints").label}</span>
+                  <span className="hidden sm:inline">{getToolbarItem("chatPoints").label}</span>
                 </div>
               ) : null}
 
@@ -10833,8 +10875,8 @@ export function CanvasChatPanel({
                         ? "bg-gradient-to-r from-violet-600 to-fuchsia-600 text-white shadow-md hover:shadow-lg hover:opacity-90 dark:from-violet-500 dark:to-fuchsia-500"
                         : "bg-muted text-muted-foreground hover:bg-muted/80"
                       : canSend
-                        ? "bg-[#2f80ff] text-white shadow-sm shadow-[#2f80ff]/30 hover:bg-[#2570e8]"
-                        : "bg-muted text-muted-foreground hover:bg-muted/80"
+                        ? "bg-[#1f2328] text-white shadow-sm hover:bg-[#111418]"
+                        : "bg-[#f1f1f2] text-[#b6bac2] hover:bg-[#ececee] dark:bg-[#242529] dark:text-[#777d88] dark:hover:bg-[#2c2d33]"
                 )}
                 onClick={handleSend}
                 disabled={isSubmitting || !canSend}
@@ -10853,7 +10895,7 @@ export function CanvasChatPanel({
                   <>
                     <CanvasToolbarIcon
                       className={cn(
-                        "h-4 w-4",
+                        "h-3.5 w-3.5",
                         canSend &&
                           (isVideoWorkspace || isDetailGenerationMode
                             ? "opacity-95"
@@ -10873,7 +10915,7 @@ export function CanvasChatPanel({
                   <>
                     <CanvasToolbarIcon
                       className={cn(
-                        "h-4 w-4",
+                        "h-3.5 w-3.5",
                         canSend &&
                           (isVideoWorkspace || isDetailGenerationMode
                             ? "opacity-95"
diff --git a/components/canvas/CanvasWorkspace.tsx b/components/canvas/CanvasWorkspace.tsx
index 6775b05e3..4a1122553 100644
--- a/components/canvas/CanvasWorkspace.tsx
+++ b/components/canvas/CanvasWorkspace.tsx
@@ -1845,6 +1845,11 @@ export function CanvasWorkspace({
         tool === 'draw' && "cursor-crosshair",
         isPanning && "cursor-grabbing"
       )}
+      style={
+        isWorkflowCanvas
+          ? undefined
+          : { backgroundColor: "var(--canvas-surface-background, #f4f4f5)" }
+      }
       onClick={handleCanvasClick}
       onMouseDown={handleMouseDown}
       onMouseMove={handleMouseMove}
diff --git a/components/home/lovart-home.tsx b/components/home/lovart-home.tsx
index 3e86fe854..d0ab4a6c7 100644
--- a/components/home/lovart-home.tsx
+++ b/components/home/lovart-home.tsx
@@ -48,7 +48,6 @@ import {
   DropdownMenu,
   DropdownMenuContent,
   DropdownMenuItem,
-  DropdownMenuLabel,
   DropdownMenuTrigger,
 } from "@/components/ui/dropdown-menu";
 import { HoverCard, HoverCardContent, HoverCardTrigger } from "@/components/ui/hover-card";
@@ -323,7 +322,7 @@ type LovartPromptTagKey = (typeof PROMPT_TAGS)[number]["key"];
 type LovartPromptTagVisibility = Record<LovartPromptTagKey, boolean>;
 
 const FEATURED_PAGE_SIZE = 24;
-const COMPOSER_PREFIX_DEFAULT = "让Buyi-ai";
+const COMPOSER_PREFIX_DEFAULT = "让「由壹点AI」";
 
 function SidebarSvgIcon({
   iconUrl,
@@ -425,14 +424,6 @@ export function LovartHome({
 }: LovartHomeProps = {}) {
   const router = useRouter();
   const { theme, resolvedTheme, setTheme } = useTheme();
-  const sidebarPopupBaseClass =
-    "rounded-[24px] border border-black/8 bg-white/96 p-2.5 text-[#111827] shadow-[0_24px_64px_rgba(15,23,42,0.12)] backdrop-blur-xl";
-  const lovartSidebarButtonClass = (active = false) =>
-    cn(
-      "group flex h-10 w-10 items-center justify-center rounded-xl text-[#6b7280] transition-all duration-200 hover:bg-black/[0.04] hover:text-[#111827]",
-      active &&
-        "bg-[#111827] text-white shadow-[0_10px_22px_rgba(15,23,42,0.18)]"
-    );
   const [prompt, setPrompt] = useState("");
   const [files, setFiles] = useState<UploadFileItem[]>([]);
   const [isSubmitting, setIsSubmitting] = useState(false);
@@ -452,6 +443,7 @@ export function LovartHome({
     imageSize: "2K",
     imageCount: 1,
   });
+  const [composerModelId, setComposerModelId] = useState("auto");
   const [loginDialogOpen, setLoginDialogOpen] = useState(false);
   const [loginEmail, setLoginEmail] = useState("");
   const [loginPassword, setLoginPassword] = useState("");
@@ -697,8 +689,19 @@ export function LovartHome({
     [modelsData?.agentModel?.avatarUrl, modelsData?.agentModel?.imageGenConfig]
   );
 
-  const composerModelValue = "auto";
-  const triggerComposerModel = autoComposerModel;
+  const composerModelOptions = useMemo<ModelOption[]>(() => {
+    const seen = new Set<string>(["auto"]);
+    const imageModels = (modelsData?.models || []).filter((model) => {
+      if (!model?.id || seen.has(model.id)) return false;
+      if (model.supportsImageGen === false) return false;
+      seen.add(model.id);
+      return true;
+    });
+    return [autoComposerModel, ...imageModels];
+  }, [autoComposerModel, modelsData?.models]);
+  const selectedComposerModel =
+    composerModelOptions.find((model) => model.id === composerModelId) ||
+    autoComposerModel;
   const isMembershipEnabled = siteSettingsData?.membershipConfig?.enabled !== false;
 
   const discoveryTabs = useMemo(() => {
@@ -938,15 +941,12 @@ export function LovartHome({
     }
   }, []);
 
-  const handleImageParamsChange = (nextParams: ImageGenerationParams) => {
-    setImageParams(nextParams);
-    if (typeof window === "undefined") return;
-    try {
-      localStorage.setItem("lovart-home-image-params", JSON.stringify(nextParams));
-    } catch (error) {
-      console.error("[LovartHome] Failed to save image params:", error);
+  useEffect(() => {
+    if (composerModelOptions.some((model) => model.id === composerModelId)) {
+      return;
     }
-  };
+    setComposerModelId("auto");
+  }, [composerModelId, composerModelOptions]);
 
   useEffect(() => {
     if (!featuredLoadMoreRef.current || !hasMoreFeatured) return;
@@ -1340,7 +1340,7 @@ export function LovartHome({
             attachments: uploadedAttachments,
             autoSend: true,
             createdAt: Date.now(),
-            selectedModelId: "auto",
+            selectedModelId: selectedComposerModel.id || "auto",
             imageParams,
           })
         );
@@ -1461,11 +1461,15 @@ export function LovartHome({
         imgClassName={cn(
           sizeClassName,
           "object-contain",
-          options?.active ? "brightness-0 invert opacity-100" : "brightness-0 opacity-60"
+          options?.active
+            ? "brightness-0 opacity-85 dark:invert dark:opacity-95"
+            : "brightness-0 opacity-60 dark:invert dark:opacity-70"
         )}
         fallbackClassName={cn(
           sizeClassName,
-          options?.active ? "text-white" : "text-[#6b7280]"
+          options?.active
+            ? "text-[#111827] dark:text-white"
+            : "text-[#6b7280] dark:text-white/62"
         )}
       />
     );
@@ -1590,66 +1594,41 @@ export function LovartHome({
               <DropdownMenuTrigger asChild>
                 <button
                   type="button"
-                  className="inline-flex h-8 items-center gap-1.5 rounded-[14px] border border-black/10 bg-white px-2.5 text-[12px] font-medium text-black/70 shadow-sm transition hover:bg-black/5 hover:text-black dark:border-white/10 dark:bg-white/6 dark:text-white/72 dark:hover:bg-white/10 dark:hover:text-white"
+                  className="inline-flex h-8 w-8 items-center justify-center rounded-[11px] border border-black/10 bg-white text-black/70 shadow-sm transition hover:bg-black/5 hover:text-black dark:border-white/10 dark:bg-white/6 dark:text-white/72 dark:hover:bg-white/10 dark:hover:text-white"
                   title={`主题模式：${selectedThemeOption.label}`}
                   aria-label={`主题模式：${selectedThemeOption.label}`}
                 >
-                  <SelectedThemeIcon className="h-3.5 w-3.5" />
-                  <span className="hidden sm:inline">{selectedThemeOption.label}</span>
-                  <ChevronDown className="h-3.5 w-3.5 opacity-55" />
+                  <SelectedThemeIcon className="h-[15px] w-[15px]" />
                 </button>
               </DropdownMenuTrigger>
               <DropdownMenuContent
                 align="end"
                 sideOffset={10}
-                className="w-[220px] rounded-2xl border-black/10 bg-white p-1.5 shadow-xl dark:border-white/10 dark:bg-[#141416]"
+                className="!min-w-0 w-auto rounded-[18px] border-black/10 bg-white p-1.5 shadow-xl dark:border-white/10 dark:bg-[#141416]"
               >
-                <DropdownMenuLabel className="px-3 py-2 text-[12px] text-black/45 dark:text-white/45">
-                  个人主题模式
-                </DropdownMenuLabel>
-                {THEME_MODE_OPTIONS.map((option) => {
-                  const OptionIcon = option.icon;
-                  const isSelected = selectedThemeMode === option.value;
+                <div className="flex items-center gap-1">
+                  {THEME_MODE_OPTIONS.map((option) => {
+                    const OptionIcon = option.icon;
+                    const isSelected = selectedThemeMode === option.value;
 
-                  return (
-                    <DropdownMenuItem
-                      key={option.value}
-                      className={cn(
-                        "flex cursor-pointer items-center gap-3 rounded-xl px-3 py-2 text-left focus:bg-black/5 dark:focus:bg-white/8",
-                        isSelected
-                          ? "bg-black text-white focus:bg-black focus:text-white dark:bg-white dark:text-black dark:focus:bg-white dark:focus:text-black"
-                          : "text-black/78 dark:text-white/78"
-                      )}
-                      onSelect={() => setTheme(option.value)}
-                    >
-                      <span
+                    return (
+                      <DropdownMenuItem
+                        key={option.value}
+                        aria-label={option.label}
                         className={cn(
-                          "flex h-8 w-8 items-center justify-center rounded-xl",
+                          "flex h-[34px] w-[34px] cursor-pointer items-center justify-center rounded-[10px] p-0 focus:bg-black/5 dark:focus:bg-white/8",
                           isSelected
-                            ? "bg-white/14 text-white dark:bg-black/8 dark:text-black"
-                            : "bg-black/5 text-black/65 dark:bg-white/8 dark:text-white/65"
+                            ? "bg-black text-white focus:bg-black focus:text-white dark:bg-white dark:text-black dark:focus:bg-white dark:focus:text-black"
+                            : "text-black/70 dark:text-white/70"
                         )}
+                        onSelect={() => setTheme(option.value)}
+                        title={option.label}
                       >
-                        <OptionIcon className="h-4 w-4" />
-                      </span>
-                      <span className="min-w-0 flex-1">
-                        <span className="block text-[13px] font-semibold leading-4">
-                          {option.label}
-                        </span>
-                        <span
-                          className={cn(
-                            "mt-0.5 block text-[11px] leading-4",
-                            isSelected
-                              ? "text-white/70 dark:text-black/60"
-                              : "text-black/45 dark:text-white/42"
-                          )}
-                        >
-                          {option.description}
-                        </span>
-                      </span>
-                    </DropdownMenuItem>
-                  );
-                })}
+                        <OptionIcon className="h-[15px] w-[15px]" />
+                      </DropdownMenuItem>
+                    );
+                  })}
+                </div>
               </DropdownMenuContent>
             </DropdownMenu>
 
@@ -1779,7 +1758,6 @@ export function LovartHome({
         onImageEditor={handleOpenImageEditor}
         onNavLink={openNavLink}
         onNewCanvas={openNewCanvas}
-        onProfile={() => toast.info("个人主页模块后续开放")}
         onRoute={openNavLink}
         onTutorial={handleOpenTutorial}
         productPlanningEnabled={siteSettingsData?.productPlanningEnabled !== false}
@@ -1798,6 +1776,7 @@ export function LovartHome({
         tutorialEnabled={Boolean(siteSettingsData?.tutorialEnabled)}
         tutorialVideos={tutorialVideos}
         videoCanvasEnabled={siteSettingsData?.videoCanvasEnabled !== false}
+        tone={resolvedTheme === "dark" ? "dark" : "light"}
       />
 
       <main className="mx-auto max-w-[1240px] px-6 pb-20 pt-[84px]">
@@ -1807,15 +1786,16 @@ export function LovartHome({
             displayLogo={displayLogo}
             files={files}
             handleAddFiles={handleAddFiles}
-            handleImageParamsChange={handleImageParamsChange}
             heroPromoActionText={heroPromoActionText}
             heroPromoText={heroPromoText}
             heroSubtitleText={heroSubtitleText}
             heroTitleText={heroTitleText}
             homeAnimationData={homeAnimationData}
-            imageParams={imageParams}
             isMembershipEnabled={isMembershipEnabled}
             isSubmitting={isSubmitting}
+            modelOptions={composerModelOptions}
+            onModelChange={setComposerModelId}
+            onStartAgentMode={() => setComposerModelId("auto")}
             onSubmit={createCanvasFromComposer}
             openUpgradeDialog={() => setUpgradeDialogOpen(true)}
             prompt={prompt}
@@ -1823,7 +1803,7 @@ export function LovartHome({
             setPrompt={setPrompt}
             shouldInvertLogo={shouldInvertLogo}
             siteName={siteName}
-            triggerComposerModel={triggerComposerModel}
+            selectedModelId={selectedComposerModel.id}
             visiblePromptTags={visiblePromptTags}
           />
         )}
diff --git a/components/home/lovart/lovart-hero-composer.tsx b/components/home/lovart/lovart-hero-composer.tsx
index 798630314..18741ffc2 100644
--- a/components/home/lovart/lovart-hero-composer.tsx
+++ b/components/home/lovart/lovart-hero-composer.tsx
@@ -1,8 +1,13 @@
-import { ArrowUp, Loader2, Sparkles, Upload } from "lucide-react";
+import { ArrowUp, Box, Lightbulb, Loader2, Plus, Sparkles } from "lucide-react";
 import type { ChangeEvent } from "react";
 import { HomeAnimationEmbed } from "@/components/home/home-animation-embed";
-import { ImageParamsBar, type ImageGenerationParams } from "@/components/image-params-bar";
 import { Button } from "@/components/ui/button";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+} from "@/components/ui/select";
 import { Textarea } from "@/components/ui/textarea";
 import type { ModelOption, UploadFileItem } from "./types";
 import type { PROMPT_TAGS } from "./utils";
@@ -14,7 +19,6 @@ type LovartHeroComposerProps = {
   displayLogo: string;
   files: UploadFileItem[];
   handleAddFiles: (files: FileList | null) => void;
-  handleImageParamsChange: (nextParams: ImageGenerationParams) => void;
   heroPromoActionText?: string | null;
   heroPromoText?: string | null;
   heroSubtitleText?: string | null;
@@ -24,7 +28,6 @@ type LovartHeroComposerProps = {
     htmlContent?: string;
     fileName?: string;
   };
-  imageParams: ImageGenerationParams;
   isMembershipEnabled: boolean;
   isSubmitting: boolean;
   onSubmit: () => void;
@@ -34,7 +37,10 @@ type LovartHeroComposerProps = {
   setPrompt: (value: string) => void;
   shouldInvertLogo: boolean;
   siteName: string;
-  triggerComposerModel: ModelOption;
+  modelOptions: ModelOption[];
+  onModelChange: (modelId: string) => void;
+  onStartAgentMode: () => void;
+  selectedModelId: string;
   visiblePromptTags: PromptTag[];
 };
 
@@ -43,13 +49,11 @@ export function LovartHeroComposer({
   displayLogo,
   files,
   handleAddFiles,
-  handleImageParamsChange,
   heroPromoActionText,
   heroPromoText,
   heroSubtitleText,
   heroTitleText,
   homeAnimationData,
-  imageParams,
   isMembershipEnabled,
   isSubmitting,
   onSubmit,
@@ -59,7 +63,10 @@ export function LovartHeroComposer({
   setPrompt,
   shouldInvertLogo,
   siteName,
-  triggerComposerModel,
+  modelOptions,
+  onModelChange,
+  onStartAgentMode,
+  selectedModelId,
   visiblePromptTags,
 }: LovartHeroComposerProps) {
   return (
@@ -127,9 +134,9 @@ export function LovartHeroComposer({
         )}
 
         <div className="flex items-center justify-between border-t border-black/8 pt-3 dark:border-white/8">
-          <div className="flex min-w-0 flex-1 items-center gap-1.5">
-            <label className="inline-flex h-9 w-9 cursor-pointer items-center justify-center rounded-full border border-black/10 text-black/60 hover:bg-black/5 dark:border-white/12 dark:text-white/60 dark:hover:bg-white/8">
-              <Upload className="h-4 w-4" />
+          <div className="flex min-w-0 flex-1 items-center gap-4">
+            <label className="inline-flex h-9 w-9 cursor-pointer items-center justify-center rounded-full text-[#20242a] hover:bg-black/5 dark:text-white/72 dark:hover:bg-white/8">
+              <Plus className="h-5 w-5" />
               <input
                 type="file"
                 accept="image/*"
@@ -141,49 +148,66 @@ export function LovartHeroComposer({
                 }}
               />
             </label>
-
-            <div className="inline-flex h-8 min-w-[130px] items-center gap-1.5 rounded-full border border-blue-100 bg-blue-50 px-2 text-xs text-blue-600 dark:border-sky-500/20 dark:bg-sky-500/12 dark:text-sky-200">
-              <span className="h-5 w-5 overflow-hidden rounded-full border border-blue-200 bg-white dark:border-sky-500/30 dark:bg-[#0d1117]">
-                {triggerComposerModel?.avatarUrl ? (
-                  <img
-                    src={triggerComposerModel.avatarUrl}
-                    alt={triggerComposerModel.displayName || "模型头像"}
-                    className="h-full w-full object-cover"
-                  />
-                ) : (
-                  <span className="flex h-full w-full items-center justify-center text-[10px] font-medium text-blue-500">
-                    {(triggerComposerModel?.displayName || "A").slice(0, 1)}
-                  </span>
-                )}
-              </span>
-              <span className="max-w-[95px] truncate">
-                {triggerComposerModel?.displayName || "Agent模式"}
-              </span>
-            </div>
-
-            <div className="min-w-0 flex-1 overflow-hidden">
-              <ImageParamsBar
-                modelName={triggerComposerModel?.displayName}
-                initialParams={imageParams}
-                onParamsChange={handleImageParamsChange}
-                inline
-                providerType={triggerComposerModel?.providerType}
-                imageGenConfig={triggerComposerModel?.imageGenConfig || undefined}
-                hideImageCount
-              />
-            </div>
           </div>
 
-          <div className="flex items-center gap-1.5 pl-2">
+          <div className="flex items-center gap-6 pl-2">
+            <button
+              type="button"
+              className="inline-flex h-9 w-9 items-center justify-center rounded-full text-[#20242a] hover:bg-black/5 dark:text-white/72 dark:hover:bg-white/8"
+              aria-label="开启 Agent 模式"
+              onClick={onStartAgentMode}
+              title="开启 Agent 模式"
+            >
+              <Lightbulb className="h-5 w-5" />
+            </button>
+            <Select value={selectedModelId} onValueChange={onModelChange}>
+              <SelectTrigger
+                aria-label="选择模型"
+                className="h-9 w-9 rounded-full border-0 bg-transparent p-0 text-[#20242a] shadow-none hover:bg-black/5 focus:ring-0 focus:ring-offset-0 dark:text-white/72 dark:hover:bg-white/8 [&>svg]:hidden"
+                title="选择模型"
+              >
+                <span className="inline-flex h-full w-full items-center justify-center">
+                  <Box className="h-5 w-5" />
+                </span>
+              </SelectTrigger>
+              <SelectContent
+                align="end"
+                sideOffset={10}
+                className="w-[210px] rounded-[18px] border-black/10 bg-white p-1.5 text-[#20242a] shadow-[0_22px_54px_rgba(15,23,42,0.16)] dark:border-white/10 dark:bg-[#141416] dark:text-white"
+              >
+                {modelOptions.map((model) => (
+                  <SelectItem
+                    key={model.id}
+                    value={model.id}
+                    className="h-9 rounded-[12px] text-[13px] [&>span:first-child]:hidden [&>span:last-child]:block [&>span:last-child]:w-full"
+                  >
+                    <span className="flex min-w-0 items-center gap-2">
+                      <span className="flex h-5 w-5 shrink-0 items-center justify-center overflow-hidden rounded-full border border-black/10 bg-white text-[10px] font-medium text-[#6b7280] dark:border-white/15 dark:bg-white/8 dark:text-white/70">
+                        {model.avatarUrl ? (
+                          <img
+                            alt=""
+                            className="h-full w-full object-cover"
+                            src={model.avatarUrl}
+                          />
+                        ) : (
+                          (model.displayName || "A").slice(0, 1)
+                        )}
+                      </span>
+                      <span className="min-w-0 flex-1 truncate">{model.displayName}</span>
+                    </span>
+                  </SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
             <Button
               onClick={onSubmit}
               disabled={isSubmitting || (!prompt.trim() && files.length === 0)}
-              className="h-8 w-8 rounded-full bg-[#9ca3af] p-0 text-white hover:bg-black dark:bg-white/16 dark:hover:bg-white/26"
+              className="h-11 w-11 rounded-full bg-[#eeeeef] p-0 text-[#b9bec7] hover:bg-[#e7e7e8] hover:text-[#8f96a3] dark:bg-white/10 dark:text-white/40 dark:hover:bg-white/16"
             >
               {isSubmitting ? (
-                <Loader2 className="h-3.5 w-3.5 animate-spin" />
+                <Loader2 className="h-4.5 w-4.5 animate-spin" />
               ) : (
-                <ArrowUp className="h-3.5 w-3.5" />
+                <ArrowUp className="h-5 w-5" />
               )}
             </Button>
           </div>
diff --git a/components/home/lovart/lovart-sidebar.tsx b/components/home/lovart/lovart-sidebar.tsx
index 58210e64b..502f46294 100644
--- a/components/home/lovart/lovart-sidebar.tsx
+++ b/components/home/lovart/lovart-sidebar.tsx
@@ -31,7 +31,6 @@ type LovartSidebarProps = {
   onImageEditor: () => void;
   onNavLink: (url: string) => void;
   onNewCanvas: () => void;
-  onProfile: () => void;
   onRoute: (url: string) => void;
   onTutorial: (video: TutorialVideo) => void;
   productPlanningEnabled: boolean;
@@ -51,6 +50,7 @@ type LovartSidebarProps = {
   tutorialEnabled: boolean;
   tutorialVideos: TutorialVideo[];
   videoCanvasEnabled: boolean;
+  tone?: "light" | "dark";
 };
 
 export function LovartSidebar({
@@ -64,7 +64,6 @@ export function LovartSidebar({
   onImageEditor,
   onNavLink,
   onNewCanvas,
-  onProfile,
   onRoute,
   onTutorial,
   productPlanningEnabled,
@@ -77,14 +76,15 @@ export function LovartSidebar({
   tutorialEnabled,
   tutorialVideos,
   videoCanvasEnabled,
+  tone = "light",
 }: LovartSidebarProps) {
   const sidebarPopupBaseClass =
-    "rounded-[24px] border border-black/8 bg-white/96 p-2.5 text-[#111827] shadow-[0_24px_64px_rgba(15,23,42,0.12)] backdrop-blur-xl";
+    "rounded-[24px] border border-black/8 bg-white/96 p-2.5 text-[#111827] shadow-[0_24px_64px_rgba(15,23,42,0.12)] backdrop-blur-xl dark:border-white/10 dark:bg-[#141416]/96 dark:text-white dark:shadow-[0_24px_64px_rgba(0,0,0,0.42)]";
   const sidebarButtonClass = (active = false) =>
     [
-      "group flex h-10 w-10 shrink-0 items-center justify-center rounded-xl text-[#6b7280] transition-all duration-200 hover:bg-black/[0.04] hover:text-[#111827]",
+      "group flex h-[34px] w-[34px] shrink-0 items-center justify-center rounded-[10px] text-[#6b7280] transition-all duration-200 hover:bg-black/[0.04] hover:text-[#111827] dark:text-white/62 dark:hover:bg-white/8 dark:hover:text-white",
       active
-        ? "bg-[#111827] text-white shadow-[0_10px_22px_rgba(15,23,42,0.18)]"
+        ? "bg-[#f1f2f4] text-[#111827] shadow-[inset_0_0_0_1px_rgba(15,23,42,0.04)] dark:bg-white/12 dark:text-white"
         : "",
     ]
       .filter(Boolean)
@@ -104,7 +104,10 @@ export function LovartSidebar({
             onClick={onClick}
             title={getItem(key).label}
           >
-            {renderIcon(key, { active: options?.active })}
+            {renderIcon(key, {
+              active: options?.active,
+              sizeClassName: "h-[15px] w-[15px]",
+            })}
           </button>
         </TooltipTrigger>
         <TooltipContent side="right">{getItem(key).label}</TooltipContent>
@@ -124,7 +127,7 @@ export function LovartSidebar({
             className={sidebarButtonClass()}
             title={getItem(key).label}
           >
-            {renderIcon(key)}
+            {renderIcon(key, { sizeClassName: "h-[15px] w-[15px]" })}
           </button>
         </HoverCardTrigger>
         <HoverCardContent
@@ -132,7 +135,7 @@ export function LovartSidebar({
           align="start"
           className={`w-[248px] ${sidebarPopupBaseClass}`}
         >
-          <div className="px-2 pb-1 pt-1 text-xs font-medium text-black/40">
+          <div className="px-2 pb-1 pt-1 text-xs font-medium text-black/40 dark:text-white/42">
             {getItem(key).label}
           </div>
           <div className="space-y-1">
@@ -140,11 +143,11 @@ export function LovartSidebar({
               <button
                 key={link.id}
                 type="button"
-                className="flex w-full items-center justify-between rounded-2xl px-3 py-2.5 text-left text-[13px] text-black/80 transition hover:bg-black/[0.04]"
+                className="flex w-full items-center justify-between rounded-2xl px-3 py-2.5 text-left text-[13px] text-black/80 transition hover:bg-black/[0.04] dark:text-white/80 dark:hover:bg-white/8"
                 onClick={() => onNavLink(link.url)}
               >
                 <span className="line-clamp-1">{link.name}</span>
-                <ArrowRight className="h-3.5 w-3.5 text-black/30" />
+                <ArrowRight className="h-3.5 w-3.5 text-black/30 dark:text-white/35" />
               </button>
             ))}
           </div>
@@ -153,7 +156,7 @@ export function LovartSidebar({
     ) : null;
 
   return (
-    <aside className="fixed left-5 top-[88px] z-30 hidden flex-col items-center gap-3 lg:flex">
+    <aside className="fixed left-5 top-[88px] z-30 hidden flex-col items-center gap-2.5 lg:flex">
       <TooltipProvider delayDuration={120}>
         {isEnabled("newProject") ? (
           <Tooltip>
@@ -161,13 +164,12 @@ export function LovartSidebar({
               <button
                 type="button"
                 onClick={onNewCanvas}
-                className="flex h-[56px] w-[56px] shrink-0 items-center justify-center rounded-[20px] border border-black/8 bg-white/96 shadow-[0_20px_46px_rgba(15,23,42,0.12)] backdrop-blur-xl transition-transform duration-200 hover:-translate-y-0.5 hover:bg-white"
+                className="flex h-[48px] w-[48px] shrink-0 items-center justify-center rounded-[17px] border border-black/8 bg-white/96 shadow-[0_18px_40px_rgba(15,23,42,0.11)] backdrop-blur-xl transition-transform duration-200 hover:-translate-y-0.5 hover:bg-white dark:border-white/10 dark:bg-[#17181d]/94 dark:shadow-[0_22px_60px_rgba(6,8,14,0.34)] dark:hover:bg-[#202127]"
                 title={getItem("newProject").label}
               >
-                <div className="flex h-9 w-9 items-center justify-center rounded-[12px] bg-[#111827] text-white shadow-[0_10px_20px_rgba(15,23,42,0.18)]">
+                <div className="flex h-[31px] w-[31px] items-center justify-center rounded-[10px] bg-[#f1f2f4] text-[#111827] shadow-[inset_0_0_0_1px_rgba(15,23,42,0.04)] dark:bg-white/12 dark:text-white">
                   {renderIcon("newProject", {
-                    filled: true,
-                    sizeClassName: "h-4 w-4",
+                    sizeClassName: "h-3.5 w-3.5",
                   })}
                 </div>
               </button>
@@ -175,10 +177,12 @@ export function LovartSidebar({
             <TooltipContent side="right">{getItem("newProject").label}</TooltipContent>
           </Tooltip>
         ) : null}
-        <FloatingSidebarRail className="max-h-[calc(100vh-172px)]" tone="light">
+        <FloatingSidebarRail
+          className="max-h-[calc(100vh-160px)] !w-[48px] !max-w-[48px] gap-1 !rounded-[20px] !px-[7px] !py-[7px]"
+          tone={tone}
+        >
           {tooltipButton("home", onHome, { active: !isProjectsOnlyView })}
           {tooltipButton("projects", onAllProjects, { active: isProjectsOnlyView })}
-          {tooltipButton("profile", onProfile)}
           {tooltipButton("gallery", onGallery)}
           {isEnabled("tutorial") && tutorialEnabled ? (
             <HoverCard openDelay={80} closeDelay={100}>
@@ -188,7 +192,7 @@ export function LovartSidebar({
                   className={sidebarButtonClass()}
                   title={getItem("tutorial").label}
                 >
-                  {renderIcon("tutorial")}
+                  {renderIcon("tutorial", { sizeClassName: "h-[15px] w-[15px]" })}
                 </button>
               </HoverCardTrigger>
               <HoverCardContent
@@ -196,7 +200,7 @@ export function LovartSidebar({
                 align="start"
                 className={`w-[300px] ${sidebarPopupBaseClass}`}
               >
-                <div className="px-2 pb-1 pt-1 text-xs font-medium text-black/40">
+                <div className="px-2 pb-1 pt-1 text-xs font-medium text-black/40 dark:text-white/42">
                   {getItem("tutorial").label}
                 </div>
                 <div className="max-h-[380px] space-y-1 overflow-y-auto">
@@ -205,10 +209,10 @@ export function LovartSidebar({
                       <button
                         key={video.id}
                         type="button"
-                        className="flex w-full items-center gap-2.5 rounded-2xl p-2.5 text-left transition hover:bg-black/[0.04]"
+                          className="flex w-full items-center gap-2.5 rounded-2xl p-2.5 text-left transition hover:bg-black/[0.04] dark:hover:bg-white/8"
                         onClick={() => onTutorial(video)}
                       >
-                        <div className="h-10 w-16 flex-shrink-0 overflow-hidden rounded-xl bg-black/[0.04]">
+                        <div className="h-10 w-16 flex-shrink-0 overflow-hidden rounded-xl bg-black/[0.04] dark:bg-white/8">
                           {video.coverUrl ? (
                             <img
                               src={video.coverUrl}
@@ -217,16 +221,16 @@ export function LovartSidebar({
                             />
                           ) : (
                             <div className="flex h-full w-full items-center justify-center">
-                              <PlayCircle className="h-4 w-4 text-black/35" />
+                              <PlayCircle className="h-4 w-4 text-black/35 dark:text-white/45" />
                             </div>
                           )}
                         </div>
                         <div className="min-w-0 flex-1">
-                          <div className="truncate text-[13px] font-medium text-black/85">
+                          <div className="truncate text-[13px] font-medium text-black/85 dark:text-white/88">
                             {video.title}
                           </div>
                           {video.description ? (
-                            <div className="truncate text-[11px] text-black/42">
+                            <div className="truncate text-[11px] text-black/42 dark:text-white/42">
                               {video.description}
                             </div>
                           ) : null}
@@ -234,7 +238,7 @@ export function LovartSidebar({
                       </button>
                     ))
                   ) : (
-                    <div className="px-2 py-3 text-[12px] text-black/42">暂无教程视频</div>
+                    <div className="px-2 py-3 text-[12px] text-black/42 dark:text-white/42">暂无教程视频</div>
                   )}
                 </div>
               </HoverCardContent>
diff --git a/components/home/lovart/utils.ts b/components/home/lovart/utils.ts
index c37ee0d22..6f723c417 100644
--- a/components/home/lovart/utils.ts
+++ b/components/home/lovart/utils.ts
@@ -98,7 +98,7 @@ export type LovartPromptTagVisibility = Record<LovartPromptTagKey, boolean>;
 
 export const MASONRY_HEIGHTS = [420, 290, 340, 470, 300, 360, 430, 320];
 export const FEATURED_PAGE_SIZE = 24;
-export const COMPOSER_PREFIX_DEFAULT = "让Buyi-ai";
+export const COMPOSER_PREFIX_DEFAULT = "让「由壹点AI」";
 
 export function normalizeComposerPreviewTail(text: string, fixedPrefix: string) {
   const trimmed = text.trim();
diff --git a/components/image-params-bar.tsx b/components/image-params-bar.tsx
index 79753aaf1..aaa78b204 100644
--- a/components/image-params-bar.tsx
+++ b/components/image-params-bar.tsx
@@ -2,7 +2,7 @@
 
 import { useEffect, useState } from "react";
 import { Button } from "@/components/ui/button";
-import { Link2, Scan, SlidersHorizontal, Sparkles } from "lucide-react";
+import { ChevronDown, ChevronUp, Link2, Scan, SlidersHorizontal, Sparkles } from "lucide-react";
 import { getGrsaiGptImageOutputSize } from "@/lib/ai/grsai-gpt-image-sizes";
 import { cn } from "@/lib/utils";
 import { Input } from "@/components/ui/input";
@@ -34,7 +34,7 @@ interface ImageParamsBarProps {
   providerType?: string; // 模型类型：gemini, volcano-vision, alibaba-image, ruxa-image 等
   hideImageCount?: boolean; // 隐藏图片数量按钮（仅个别页面需要）
   hideAdvancedOptions?: boolean; // 隐藏高级设置按钮
-  inlineTheme?: "light" | "dark";
+  inlineTheme?: "light" | "dark" | "minimal";
   showInlineDivider?: boolean;
   // 🆕 图片生成模型特性配置（从模型配置中读取）
   imageGenConfig?: {
@@ -122,6 +122,10 @@ export function ImageParamsBar({
   };
 
   const getImageCountOptions = () => {
+    if (inlineTheme === "minimal") {
+      return Array.from({ length: 10 }, (_, i) => i + 1);
+    }
+
     if (imageGenConfig?.maxImages) {
       return Array.from({ length: imageGenConfig.maxImages }, (_, i) => i + 1);
     }
@@ -186,17 +190,22 @@ export function ImageParamsBar({
 
   const buildBaseParams = (source?: Partial<ImageGenerationParams>) =>
     clampParamsByProvider({
-      aspectRatio: "auto",
+      aspectRatio: inlineTheme === "minimal" ? "1:1" : "auto",
       imageSize: "2K",
       imageCount: 1,
       promptExtend: true,
       watermark: false,
       ...source,
+      ...(inlineTheme === "minimal" && (!source?.aspectRatio || source.aspectRatio === "auto")
+        ? { aspectRatio: "1:1" }
+        : {}),
     });
 
   const [params, setParams] = useState<ImageGenerationParams>({
     ...buildBaseParams(initialParams),
   });
+  const [minimalParamsOpen, setMinimalParamsOpen] = useState(false);
+  const [qualityLabel, setQualityLabel] = useState<"自动" | "高" | "中" | "低">("中");
 
   const imageCountOptions = getImageCountOptions();
   const showImageCountSelector = !hideImageCount && imageCountOptions.length > 1;
@@ -300,16 +309,192 @@ export function ImageParamsBar({
     }
   };
 
+  const updateParams = (patch: Partial<ImageGenerationParams>) => {
+    const newParams = clampParamsByProvider({ ...params, ...patch });
+    setParams((prevParams) => (isSameParams(prevParams, newParams) ? prevParams : newParams));
+    if (!isSameParams(params, newParams)) {
+      onParamsChange?.(newParams);
+    }
+  };
+
   // 内联模式：只返回参数按钮，嵌入工具栏
   if (inline) {
     const isDarkInline = inlineTheme === "dark";
+    const isMinimalInline = inlineTheme === "minimal";
     const outputSize = getComputedOutputSize(params.aspectRatio, params.imageSize);
 
+    if (isMinimalInline) {
+      const sizeOptions = [
+        { label: "1:1", aspectRatio: "1:1", imageSize: "1K" },
+        { label: "3:2", aspectRatio: "3:2", imageSize: "1K" },
+        { label: "2:3", aspectRatio: "2:3", imageSize: "1K" },
+        { label: "4:3", aspectRatio: "4:3", imageSize: "1K" },
+        { label: "3:4", aspectRatio: "3:4", imageSize: "1K" },
+        { label: "9:16", aspectRatio: "9:16", imageSize: "1K" },
+        { label: "1:1(2k)", aspectRatio: "1:1", imageSize: "2K" },
+        { label: "16:9(2k)", aspectRatio: "16:9", imageSize: "2K" },
+        { label: "9:16(2k)", aspectRatio: "9:16", imageSize: "2K" },
+        { label: "16:9(4K)", aspectRatio: "16:9", imageSize: "4K" },
+        { label: "9:16(4K)", aspectRatio: "9:16", imageSize: "4K" },
+        { label: "auto", aspectRatio: "auto", imageSize: params.imageSize || "1K" },
+      ] as const;
+      const imageCountOptions = Array.from({ length: 10 }, (_, index) => index + 1);
+      const selectedAspectLabel = params.aspectRatio === "auto" ? "auto" : params.aspectRatio;
+      const selectedImageCount = params.imageCount || 1;
+      const renderMinimalRatioGlyph = (ratioValue: string) => {
+        if (ratioValue === "auto") {
+          return <span className="text-[11px] leading-none">auto</span>;
+        }
+
+        const [wRaw, hRaw] = ratioValue.split(":").map((item) => Number(item));
+        if (!wRaw || !hRaw) {
+          return <Scan className="h-4 w-4" />;
+        }
+        const maxSide = 18;
+        let width = maxSide;
+        let height = maxSide;
+        if (wRaw >= hRaw) {
+          width = maxSide;
+          height = Math.max(7, Math.round((maxSide * hRaw) / wRaw));
+        } else {
+          height = maxSide;
+          width = Math.max(7, Math.round((maxSide * wRaw) / hRaw));
+        }
+
+        return (
+          <span
+            className="inline-block rounded-[3px] border border-current"
+            style={{ width, height }}
+          />
+        );
+      };
+
+      return (
+        <Popover open={minimalParamsOpen} onOpenChange={setMinimalParamsOpen}>
+          <PopoverTrigger asChild>
+            <Button
+              variant="ghost"
+              className="h-8 shrink-0 rounded-full bg-[#f1f1f2] px-2.5 text-[13px] font-normal text-[#20242a] hover:bg-[#e9eaec] focus-visible:ring-0 focus-visible:ring-offset-0 dark:bg-[#242529] dark:text-zinc-100 dark:hover:bg-[#2c2d33]"
+              title="生成参数"
+            >
+              {qualityLabel} · {selectedAspectLabel} · {selectedImageCount} img
+              {minimalParamsOpen ? (
+                <ChevronUp className="ml-1 h-3 w-3" />
+              ) : (
+                <ChevronDown className="ml-1 h-3 w-3" />
+              )}
+            </Button>
+          </PopoverTrigger>
+          <PopoverContent
+            align="center"
+            side="top"
+            sideOffset={8}
+            className="w-[304px] max-w-[calc(100vw-32px)] rounded-[18px] border border-[#c7ccd5] bg-white p-3.5 text-[#252b33] shadow-[0_22px_56px_rgba(15,23,42,0.16)] dark:border-white/12 dark:bg-[#141416] dark:text-zinc-100 dark:shadow-[0_24px_64px_rgba(0,0,0,0.42)]"
+          >
+            <div className="space-y-4">
+              <div>
+                <div className="mb-2 text-[14px] font-medium leading-none">质量</div>
+                <div className="grid h-9 grid-cols-4 rounded-full bg-[#f4f4f5] p-0.5 dark:bg-white/8">
+                  {(["自动", "高", "中", "低"] as const).map((quality) => (
+                    <button
+                      key={quality}
+                      type="button"
+                      className={cn(
+                        "rounded-full text-[13px] font-medium transition-colors",
+                        qualityLabel === quality
+                          ? "border border-[#c8cdd5] bg-white shadow-[0_1px_4px_rgba(15,23,42,0.1)] dark:border-white/12 dark:bg-white/16"
+                          : "text-[#3d434d] hover:bg-white/55 dark:text-zinc-300 dark:hover:bg-white/10"
+                      )}
+                      onClick={() => setQualityLabel(quality)}
+                    >
+                      {quality}
+                    </button>
+                  ))}
+                </div>
+              </div>
+
+              <div>
+                <div className="mb-2 text-[14px] font-medium leading-none">尺寸</div>
+                <div className="grid grid-cols-[1fr_20px_1fr] items-center gap-2">
+                  <div className="flex h-10 items-center gap-2 rounded-[10px] bg-[#f3f3f4] px-3 text-[15px] dark:bg-white/8">
+                    <span className="text-[#68707c] dark:text-zinc-400">W</span>
+                    <span>{outputSize.width}</span>
+                  </div>
+                  <Link2 className="mx-auto h-3.5 w-3.5 text-[#8b929c]" />
+                  <div className="flex h-10 items-center gap-2 rounded-[10px] bg-[#f3f3f4] px-3 text-[15px] dark:bg-white/8">
+                    <span className="text-[#68707c] dark:text-zinc-400">H</span>
+                    <span>{outputSize.height}</span>
+                  </div>
+                </div>
+              </div>
+
+              <div>
+                <div className="mb-2 text-[14px] font-medium leading-none">Size</div>
+                <div className="grid grid-cols-4 gap-2">
+                  {sizeOptions.map((option) => {
+                    const selected =
+                      params.aspectRatio === option.aspectRatio &&
+                      (option.aspectRatio === "auto" || params.imageSize === option.imageSize);
+                    return (
+                      <button
+                        key={`${option.aspectRatio}-${option.imageSize}-${option.label}`}
+                        type="button"
+                        className={cn(
+                          "flex h-[66px] flex-col items-center justify-center gap-1.5 rounded-[10px] border text-[13px] transition-colors",
+                          selected
+                            ? "border-[#bfc4cc] bg-[#e4e4e5] text-[#171b21] dark:border-white/18 dark:bg-white/16 dark:text-zinc-50"
+                            : "border-[#d0d3d9] bg-white text-[#4c535d] hover:bg-[#f5f5f6] dark:border-white/12 dark:bg-transparent dark:text-zinc-300 dark:hover:bg-white/8"
+                        )}
+                        onClick={() =>
+                          updateParams({
+                            aspectRatio: option.aspectRatio,
+                            imageSize: option.imageSize,
+                          })
+                        }
+                      >
+                        <span className="flex h-5 items-center justify-center text-[#30353c] dark:text-zinc-200">
+                          {renderMinimalRatioGlyph(option.aspectRatio)}
+                        </span>
+                        <span>{option.label}</span>
+                      </button>
+                    );
+                  })}
+                </div>
+              </div>
+
+              <div>
+                <div className="mb-2 text-[14px] font-medium leading-none">Image</div>
+                <div className="grid grid-cols-4 gap-2">
+                  {imageCountOptions.map((count) => (
+                    <button
+                      key={count}
+                      type="button"
+                      className={cn(
+                        "h-9 rounded-[9px] border text-[14px] transition-colors",
+                        selectedImageCount === count
+                          ? "border-[#bfc4cc] bg-[#e4e4e5] text-[#171b21] dark:border-white/18 dark:bg-white/16 dark:text-zinc-50"
+                          : "border-[#d0d3d9] bg-white text-[#4c535d] hover:bg-[#f5f5f6] dark:border-white/12 dark:bg-transparent dark:text-zinc-300 dark:hover:bg-white/8"
+                      )}
+                      onClick={() => updateParams({ imageCount: count })}
+                    >
+                      {count} img
+                    </button>
+                  ))}
+                </div>
+              </div>
+            </div>
+          </PopoverContent>
+        </Popover>
+      );
+    }
+
     return (
       <div
         className={cn(
-          "ml-1 flex min-w-0 items-center gap-1 pl-1",
+          "flex min-w-0 items-center",
+          isMinimalInline ? "ml-0 gap-2 pl-0" : "ml-1 gap-1 pl-1",
           showInlineDivider &&
+            !isMinimalInline &&
             (isDarkInline ? "border-l border-white/10" : "border-l border-border/50")
         )}
       >
@@ -318,10 +503,15 @@ export function ImageParamsBar({
             <Button
               variant="ghost"
               className={cn(
-                "h-8 w-11 shrink-0 rounded-[12px] p-0",
-                isDarkInline
+                "shrink-0 p-0",
+                isMinimalInline
+                  ? "h-11 w-11 rounded-full border border-transparent bg-transparent text-[#555b66] hover:bg-[#f3f4f6] hover:text-[#20242a]"
+                  : "h-8 w-11 rounded-[12px]",
+                !isMinimalInline && isDarkInline
                   ? "border border-white/12 bg-white/[0.06] text-white hover:bg-white/[0.1]"
-                  : "border border-[#d6dbe2] bg-[#f3f4f6]/90 text-[#2f3b48] hover:bg-[#edeff2]/90"
+                  : !isMinimalInline
+                    ? "border border-[#d6dbe2] bg-[#f3f4f6]/90 text-[#2f3b48] hover:bg-[#edeff2]/90"
+                    : ""
               )}
               aria-label={`比例：${params.aspectRatio}，分辨率：${params.imageSize}`}
               title={`比例：${params.aspectRatio}，分辨率：${params.imageSize}`}
@@ -329,7 +519,11 @@ export function ImageParamsBar({
               <span
                 className={cn(
                   "flex h-5 w-5 items-center justify-center",
-                  isDarkInline ? "text-white/80" : "text-[#20262f]"
+                  isMinimalInline
+                    ? "text-current"
+                    : isDarkInline
+                      ? "text-white/80"
+                      : "text-[#20262f]"
                 )}
               >
                 {renderRatioGlyph(params.aspectRatio)}
@@ -444,15 +638,33 @@ export function ImageParamsBar({
               <Button
                 variant="ghost"
                 className={cn(
-                  "h-8 min-w-[56px] rounded-[12px] px-2.5 text-[12px] font-semibold focus-visible:ring-0 focus-visible:ring-offset-0",
-                  isDarkInline
+                  "text-[12px] font-semibold focus-visible:ring-0 focus-visible:ring-offset-0",
+                  isMinimalInline
+                    ? "h-11 min-w-11 rounded-full border border-transparent bg-transparent px-0 text-[#555b66] hover:bg-[#f3f4f6] hover:text-[#20242a]"
+                    : "h-8 min-w-[56px] rounded-[12px] px-2.5",
+                  !isMinimalInline && isDarkInline
                     ? "border border-white/12 bg-white/[0.06] text-white hover:bg-white/[0.1]"
-                    : "border border-[#d6dbe2] bg-[#f3f4f6]/90 text-[#2f3b48] hover:bg-[#edeff2]/90"
+                    : !isMinimalInline
+                      ? "border border-[#d6dbe2] bg-[#f3f4f6]/90 text-[#2f3b48] hover:bg-[#edeff2]/90"
+                      : ""
                 )}
                 title={`数量：${params.imageCount || 1}张`}
               >
-                <Sparkles className={cn("mr-1 h-3.5 w-3.5", isDarkInline ? "text-emerald-300" : "text-[#6b7280]")} />
-                {params.imageCount || 1}张
+                <Sparkles
+                  className={cn(
+                    isMinimalInline ? "h-5 w-5" : "mr-1 h-3.5 w-3.5",
+                    isMinimalInline
+                      ? "text-current"
+                      : isDarkInline
+                        ? "text-emerald-300"
+                        : "text-[#6b7280]"
+                  )}
+                />
+                {isMinimalInline ? (
+                  <span className="sr-only">{params.imageCount || 1}张</span>
+                ) : (
+                  `${params.imageCount || 1}张`
+                )}
               </Button>
             </PopoverTrigger>
             <PopoverContent
@@ -505,11 +717,21 @@ export function ImageParamsBar({
                 <Button
                   variant="ghost"
                   className={cn(
-                    "h-8 w-8 shrink-0 rounded-[12px] p-0 focus-visible:ring-0 focus-visible:ring-offset-0",
-                    isDarkInline
+                    "shrink-0 p-0 focus-visible:ring-0 focus-visible:ring-offset-0",
+                    isMinimalInline
+                      ? "h-11 w-11 rounded-full border border-transparent bg-transparent text-[#555b66] hover:bg-[#f3f4f6] hover:text-[#20242a]"
+                      : "h-8 w-8 rounded-[12px]",
+                    !isMinimalInline && isDarkInline
                       ? "border border-white/12 bg-white/[0.06] text-white/70 hover:bg-white/[0.1]"
-                      : "border border-[#d6dbe2] bg-[#f3f4f6]/90 text-[#5f6b7a] hover:bg-[#edeff2]/90",
-                    (params.promptExtend || params.negativePrompt) && (isDarkInline ? "text-emerald-300" : "text-primary")
+                      : !isMinimalInline
+                        ? "border border-[#d6dbe2] bg-[#f3f4f6]/90 text-[#5f6b7a] hover:bg-[#edeff2]/90"
+                        : "",
+                    (params.promptExtend || params.negativePrompt) &&
+                      (isMinimalInline
+                        ? "text-[#20242a]"
+                        : isDarkInline
+                          ? "text-emerald-300"
+                          : "text-primary")
                 )}
                 title="高级设置"
               >
diff --git a/lib/db/migrations/0032_add_site_banner_and_canvas_settings.sql b/lib/db/migrations/0032_add_site_banner_and_canvas_settings.sql
index 068e15e7d..7f8264d98 100644
--- a/lib/db/migrations/0032_add_site_banner_and_canvas_settings.sql
+++ b/lib/db/migrations/0032_add_site_banner_and_canvas_settings.sql
@@ -2,7 +2,7 @@
 -- These columns are referenced by /api/site-settings and admin settings UI.
 
 ALTER TABLE "SiteSettings" ADD COLUMN IF NOT EXISTS "bannerEnabled" boolean NOT NULL DEFAULT true;
-ALTER TABLE "SiteSettings" ADD COLUMN IF NOT EXISTS "bannerText" text DEFAULT '升级会员, Nano Banana Pro 免费365天!';
+ALTER TABLE "SiteSettings" ADD COLUMN IF NOT EXISTS "bannerText" text DEFAULT '限时特惠：升级会员最高立享 45% OFF!';
 ALTER TABLE "SiteSettings" ADD COLUMN IF NOT EXISTS "bannerLink" text;
 
 ALTER TABLE "SiteSettings" ADD COLUMN IF NOT EXISTS "tutorialVideoUrl" text;
@@ -17,4 +17,3 @@ ALTER TABLE "SiteSettings" ADD COLUMN IF NOT EXISTS "canvasAutoModeDefaultModelI
 INSERT INTO "SiteSettings" ("siteName")
 SELECT 'AI Chatbot'
 WHERE NOT EXISTS (SELECT 1 FROM "SiteSettings");
-
diff --git a/lib/db/queries.ts b/lib/db/queries.ts
index 067a7f7e1..ddd37cf44 100644
--- a/lib/db/queries.ts
+++ b/lib/db/queries.ts
@@ -4727,7 +4727,7 @@ export async function getSiteSettings() {
     favicon: null, 
     defaultTheme: "system",
     bannerEnabled: true,
-    bannerText: "升级会员, Nano Banana Pro 免费365天!",
+    bannerText: "限时特惠：升级会员最高立享 45% OFF!",
     bannerLink: null,
     toolbox1Name: "工具箱",
     toolbox1Enabled: true,
diff --git a/lib/db/schema.ts b/lib/db/schema.ts
index 3ab6d044a..406520003 100644
--- a/lib/db/schema.ts
+++ b/lib/db/schema.ts
@@ -457,7 +457,7 @@ export const siteSettings = pgTable("SiteSettings", {
   usageTimeMessage: text("usageTimeMessage").default("由壹点累了也是需要休息的"), // 超时提示词
   // 广告横幅设置
   bannerEnabled: boolean("bannerEnabled").notNull().default(true), // 是否显示广告横幅
-  bannerText: text("bannerText").default("升级会员, Nano Banana Pro 免费365天!"), // 广告横幅文字
+  bannerText: text("bannerText").default("限时特惠：升级会员最高立享 45% OFF!"), // 广告横幅文字
   bannerLink: text("bannerLink"), // 广告横幅链接（可选）
   // 工具箱设置
   toolbox1Name: varchar("toolbox1Name", { length: 64 }).default("工具箱"), // 工具箱1名称