diff --git a/frontend-web/src/components/ui/card.tsx b/frontend-web/src/components/ui/card.tsx
index eb693c16..8a613603 100644
--- a/frontend-web/src/components/ui/card.tsx
+++ b/frontend-web/src/components/ui/card.tsx
@@ -7,7 +7,7 @@ function Card({ className, ...props }: React.ComponentProps<"div">) {
     <div
       data-slot="card"
       className={cn(
-        "bg-card text-card-foreground flex flex-col gap-6 rounded-xl border py-6 shadow-sm",
+        "bg-card text-card-foreground flex flex-col gap-6 rounded-[4px] border py-6 shadow-sm dark:border-[#0049A5] dark:bg-[#02244C]",
         className,
       )}
       {...props}
@@ -42,7 +42,7 @@ function CardDescription({ className, ...props }: React.ComponentProps<"div">) {
   return (
     <div
       data-slot="card-description"
-      className={cn("text-muted-foreground text-sm", className)}
+      className={cn("text-muted-foreground text-sm dark:text-[#F2F3F5]", className)}
       {...props}
     />
   );
@@ -65,7 +65,7 @@ function CardContent({ className, ...props }: React.ComponentProps<"div">) {
   return (
     <div
       data-slot="card-content"
-      className={cn("px-6", className)}
+      className={cn("px-6 ", className)}
       {...props}
     />
   );
diff --git a/frontend-web/src/components/ui/input-group.tsx b/frontend-web/src/components/ui/input-group.tsx
index bb535dbb..ec7272b4 100644
--- a/frontend-web/src/components/ui/input-group.tsx
+++ b/frontend-web/src/components/ui/input-group.tsx
@@ -14,7 +14,7 @@ function InputGroup({ className, ...props }: React.ComponentProps<"div">) {
       data-slot="input-group"
       role="group"
       className={cn(
-        "group/input-group border-input/50 dark:bg-background/80 relative flex w-full items-center rounded-md border bg-white/80 shadow-xs transition-[color,box-shadow] outline-none",
+        "group/input-group relative flex w-full items-center rounded-md border border-input/50 bg-white/80 shadow-xs transition-[color,box-shadow] outline-none dark:border-[#1B477E] dark:bg-[#022248]",
         "h-9 min-w-0 has-[>textarea]:h-auto",
 
         // Variants based on alignment.
diff --git a/frontend-web/src/components/ui/input.tsx b/frontend-web/src/components/ui/input.tsx
index 481e6788..6537bb0f 100644
--- a/frontend-web/src/components/ui/input.tsx
+++ b/frontend-web/src/components/ui/input.tsx
@@ -8,9 +8,12 @@ function Input({ className, type, ...props }: React.ComponentProps<"input">) {
       type={type}
       data-slot="input"
       className={cn(
-        "file:text-foreground placeholder:text-muted-foreground selection:bg-primary selection:text-primary-foreground dark:bg-input/30 border-input h-9 w-full min-w-0 rounded-md border bg-transparent px-3 py-1 text-base shadow-xs transition-[color,box-shadow] outline-none file:inline-flex file:h-7 file:border-0 file:bg-transparent file:text-sm file:font-medium disabled:pointer-events-none disabled:cursor-not-allowed disabled:opacity-50 md:text-sm",
-        "focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px]",
-        "aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive",
+        "h-9 w-full min-w-0 rounded-md border bg-transparent px-3 py-1 text-base outline-none transition-[color,box-shadow] md:text-sm",
+        "border-input placeholder:text-muted-foreground",
+        "dark:border-[#1B477E] dark:bg-[#022248] dark:text-[#AACEFF] dark:placeholder:text-[#566B7F] rounded-[4px] text-[16px]",
+        "file:text-foreground selection:bg-primary selection:text-primary-foreground file:inline-flex file:h-7 file:border-0 file:bg-transparent file:text-sm file:font-medium disabled:pointer-events-none disabled:cursor-not-allowed disabled:opacity-50",
+        "focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] dark:focus-visible:border-[#3b82f6] dark:focus-visible:ring-[#3b82f6]/30",
+        "aria-invalid:border-destructive aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40",
         className,
       )}
       {...props}
diff --git a/frontend-web/src/components/ui/tabs.tsx b/frontend-web/src/components/ui/tabs.tsx
index 41a53cc7..9bbb70e2 100644
--- a/frontend-web/src/components/ui/tabs.tsx
+++ b/frontend-web/src/components/ui/tabs.tsx
@@ -30,7 +30,8 @@ const tabsListVariants = cva(
   {
     variants: {
       variant: {
-        default: "bg-muted",
+        default:
+          "bg-muted dark:group-data-[orientation=horizontal]/tabs:h-8! dark:items-stretch dark:gap-0 dark:overflow-hidden dark:rounded-[2px] dark:border dark:border-[#55A6FE] dark:bg-[#022248] dark:p-0",
         line: "gap-1 bg-transparent",
       },
     },
@@ -40,60 +41,65 @@ const tabsListVariants = cva(
   },
 );
 
-const TabsList = React.forwardRef<
-  React.ElementRef<typeof TabsPrimitive.List>,
-  React.ComponentPropsWithoutRef<typeof TabsPrimitive.List> &
-    VariantProps<typeof tabsListVariants>
->(({ className, variant = "default", ...props }, ref) => {
-  return (
-    <TabsPrimitive.List
-      ref={ref}
-      data-slot="tabs-list"
-      data-variant={variant}
-      className={cn(tabsListVariants({ variant }), className)}
-      {...props}
-    />
-  );
-});
-
-TabsList.displayName = TabsPrimitive.List.displayName;
+const TabsList = React.forwardRef<
+  React.ElementRef<typeof TabsPrimitive.List>,
+  React.ComponentPropsWithoutRef<typeof TabsPrimitive.List> &
+    VariantProps<typeof tabsListVariants>
+>(({ className, variant = "default", ...props }, ref) => {
+  return (
+    <TabsPrimitive.List
+      ref={ref}
+      data-slot="tabs-list"
+      data-variant={variant}
+      className={cn(tabsListVariants({ variant }), className)}
+      {...props}
+    />
+  );
+});
 
-const TabsTrigger = React.forwardRef<
-  React.ElementRef<typeof TabsPrimitive.Trigger>,
-  React.ComponentPropsWithoutRef<typeof TabsPrimitive.Trigger>
->(({ className, ...props }, ref) => {
-  return (
-    <TabsPrimitive.Trigger
-      ref={ref}
-      data-slot="tabs-trigger"
-      className={cn(
-        "focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:outline-ring text-foreground/60 hover:text-foreground dark:text-muted-foreground dark:hover:text-foreground relative inline-flex h-[calc(100%-1px)] flex-1 items-center justify-center gap-1.5 rounded-md border border-transparent px-2 py-1 text-sm font-medium whitespace-nowrap transition-all group-data-[orientation=vertical]/tabs:w-full group-data-[orientation=vertical]/tabs:justify-start focus-visible:ring-[3px] focus-visible:outline-1 disabled:pointer-events-none disabled:opacity-50 group-data-[variant=default]/tabs-list:data-[state=active]:shadow-sm group-data-[variant=line]/tabs-list:data-[state=active]:shadow-none [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
-        "group-data-[variant=line]/tabs-list:bg-transparent group-data-[variant=line]/tabs-list:data-[state=active]:bg-transparent dark:group-data-[variant=line]/tabs-list:data-[state=active]:border-transparent dark:group-data-[variant=line]/tabs-list:data-[state=active]:bg-transparent",
-        "data-[state=active]:bg-background dark:data-[state=active]:text-foreground dark:data-[state=active]:border-input dark:data-[state=active]:bg-input/30 data-[state=active]:text-foreground",
-        "after:bg-foreground after:absolute after:opacity-0 after:transition-opacity group-data-[orientation=horizontal]/tabs:after:inset-x-0 group-data-[orientation=horizontal]/tabs:after:bottom-[-5px] group-data-[orientation=horizontal]/tabs:after:h-0.5 group-data-[orientation=vertical]/tabs:after:inset-y-0 group-data-[orientation=vertical]/tabs:after:-right-1 group-data-[orientation=vertical]/tabs:after:w-0.5 group-data-[variant=line]/tabs-list:data-[state=active]:after:opacity-100",
-        className,
-      )}
-      {...props}
-    />
-  );
-});
-
-TabsTrigger.displayName = TabsPrimitive.Trigger.displayName;
+TabsList.displayName = TabsPrimitive.List.displayName;
 
-const TabsContent = React.forwardRef<
-  React.ElementRef<typeof TabsPrimitive.Content>,
-  React.ComponentPropsWithoutRef<typeof TabsPrimitive.Content>
->(({ className, ...props }, ref) => {
-  return (
-    <TabsPrimitive.Content
-      ref={ref}
-      data-slot="tabs-content"
-      className={cn("flex-1 outline-none", className)}
-      {...props}
-    />
-  );
-});
-
-TabsContent.displayName = TabsPrimitive.Content.displayName;
+const TabsTrigger = React.forwardRef<
+  React.ElementRef<typeof TabsPrimitive.Trigger>,
+  React.ComponentPropsWithoutRef<typeof TabsPrimitive.Trigger>
+>(({ className, ...props }, ref) => {
+  return (
+    <TabsPrimitive.Trigger
+      ref={ref}
+      data-slot="tabs-trigger"
+      className={cn(
+        "focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:outline-ring text-foreground/60 hover:text-foreground relative inline-flex h-[calc(100%-1px)] flex-1 items-center justify-center gap-1.5 rounded-md border border-transparent px-2 py-1 text-sm font-medium whitespace-nowrap transition-[color,box-shadow] outline-none group-data-[orientation=vertical]/tabs:w-full group-data-[orientation=vertical]/tabs:justify-start focus-visible:ring-[3px] disabled:pointer-events-none disabled:opacity-50 group-data-[variant=default]/tabs-list:data-[state=active]:shadow-sm group-data-[variant=line]/tabs-list:data-[state=active]:shadow-none [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        "dark:text-muted-foreground dark:hover:text-foreground",
+        "group-data-[variant=line]/tabs-list:bg-transparent group-data-[variant=line]/tabs-list:data-[state=active]:bg-transparent dark:group-data-[variant=line]/tabs-list:data-[state=active]:border-transparent dark:group-data-[variant=line]/tabs-list:data-[state=active]:bg-transparent",
+        "data-[state=active]:bg-background data-[state=active]:text-foreground",
+        "dark:group-data-[variant=line]/tabs-list:data-[state=active]:border-input dark:group-data-[variant=line]/tabs-list:data-[state=active]:bg-input/30 dark:group-data-[variant=line]/tabs-list:data-[state=active]:text-foreground",
+        "dark:group-data-[variant=default]/tabs-list:relative dark:group-data-[variant=default]/tabs-list:!h-full dark:group-data-[variant=default]/tabs-list:self-stretch dark:group-data-[variant=default]/tabs-list:flex-none dark:group-data-[variant=default]/tabs-list:rounded-none dark:group-data-[variant=default]/tabs-list:border-0 dark:group-data-[variant=default]/tabs-list:bg-transparent dark:group-data-[variant=default]/tabs-list:px-4 dark:group-data-[variant=default]/tabs-list:!py-0 dark:group-data-[variant=default]/tabs-list:!leading-none dark:group-data-[variant=default]/tabs-list:shadow-none dark:group-data-[variant=default]/tabs-list:focus-visible:ring-0 dark:group-data-[variant=default]/tabs-list:[&_svg]:text-[#CCD2DA]",
+        "dark:group-data-[variant=default]/tabs-list:not(:first-child):border-l dark:group-data-[variant=default]/tabs-list:not(:first-child):border-[#1d3961] dark:group-data-[variant=default]/tabs-list:data-[state=active]:border-l-0",
+        "dark:group-data-[variant=default]/tabs-list:data-[state=active]:rounded-none dark:group-data-[variant=default]/tabs-list:data-[state=active]:border-0 dark:group-data-[variant=default]/tabs-list:data-[state=active]:bg-[#0062D9] dark:group-data-[variant=default]/tabs-list:data-[state=active]:text-[#FFFFFF] dark:group-data-[variant=default]/tabs-list:data-[state=active]:shadow-none dark:group-data-[variant=default]/tabs-list:data-[state=active]:[&_svg]:text-[#FFFFFF] dark:group-data-[variant=default]/tabs-list:hover:text-[#CCD2DA]",
+        "after:bg-foreground after:absolute after:opacity-0 after:transition-opacity group-data-[orientation=horizontal]/tabs:after:inset-x-0 group-data-[orientation=horizontal]/tabs:after:bottom-[-5px] group-data-[orientation=horizontal]/tabs:after:h-0.5 group-data-[orientation=vertical]/tabs:after:inset-y-0 group-data-[orientation=vertical]/tabs:after:-right-1 group-data-[orientation=vertical]/tabs:after:w-0.5 group-data-[variant=line]/tabs-list:data-[state=active]:after:opacity-100",
+        className,
+      )}
+      {...props}
+    />
+  );
+});
+
+TabsTrigger.displayName = TabsPrimitive.Trigger.displayName;
+
+const TabsContent = React.forwardRef<
+  React.ElementRef<typeof TabsPrimitive.Content>,
+  React.ComponentPropsWithoutRef<typeof TabsPrimitive.Content>
+>(({ className, ...props }, ref) => {
+  return (
+    <TabsPrimitive.Content
+      ref={ref}
+      data-slot="tabs-content"
+      className={cn("flex-1 outline-none", className)}
+      {...props}
+    />
+  );
+});
+
+TabsContent.displayName = TabsPrimitive.Content.displayName;
 
 export { Tabs, TabsList, TabsTrigger, TabsContent, tabsListVariants };
diff --git a/frontend-web/src/components/ui/textarea.tsx b/frontend-web/src/components/ui/textarea.tsx
index d55b5a4b..5bdc6ef7 100644
--- a/frontend-web/src/components/ui/textarea.tsx
+++ b/frontend-web/src/components/ui/textarea.tsx
@@ -7,7 +7,9 @@ function Textarea({ className, ...props }: React.ComponentProps<"textarea">) {
     <textarea
       data-slot="textarea"
       className={cn(
-        "border-input placeholder:text-muted-foreground/60 focus-visible:border-ring focus-visible:ring-ring/50 aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive dark:bg-input/30 flex field-sizing-content min-h-16 w-full rounded-md border bg-transparent px-3 py-2 text-base shadow-xs transition-[color,box-shadow] outline-none focus-visible:ring-[3px] disabled:cursor-not-allowed disabled:opacity-50 md:text-sm",
+        "border-input placeholder:text-muted-foreground/60 flex field-sizing-content min-h-16 w-full rounded-md border bg-transparent px-3 py-2 text-base shadow-xs transition-[color,box-shadow] outline-none disabled:cursor-not-allowed disabled:opacity-50 md:text-sm",
+        "dark:border-[#1B477E] dark:bg-[#022248] dark:text-[#AACEFF] ",
+        "focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive",
         className,
       )}
       {...props}
diff --git a/frontend-web/src/components/workspace/agents/agent-card.tsx b/frontend-web/src/components/workspace/agents/agent-card.tsx
index 9d4d7d1a..a7e2b79b 100644
--- a/frontend-web/src/components/workspace/agents/agent-card.tsx
+++ b/frontend-web/src/components/workspace/agents/agent-card.tsx
@@ -267,15 +267,18 @@ export function AgentCard({ agent }: AgentCardProps) {
 
   return (
     <>
-      <Card className="group flex flex-col transition-shadow hover:shadow-md">
-        <CardHeader className="pb-3">
-          <div className="flex items-start justify-between gap-2">
-            <div className="flex min-w-0 flex-1 items-center gap-2">
+      <Card className="group flex min-w-0 flex-col transition-shadow hover:shadow-md">
+        <CardHeader className="min-w-0 pb-3">
+          <div className="flex min-w-0 items-start justify-between gap-2">
+            <div className="flex min-w-0 flex-1 items-center gap-2 overflow-hidden">
               <div className="bg-primary/10 text-primary flex h-9 w-9 shrink-0 items-center justify-center rounded-lg">
                 <BotIcon className="h-5 w-5" />
               </div>
-              <div className="min-w-0 flex-1">
-                <CardTitle className="truncate text-base" title={desensitize(agent.name)}>
+              <div className="min-w-0 flex-1 overflow-hidden">
+                <CardTitle
+                  className="block w-full min-w-0 overflow-hidden text-base text-ellipsis whitespace-nowrap"
+                  title={desensitize(agent.name)}
+                >
                   {desensitize(agent.name)}
                 </CardTitle>
                 {agent.model && (
diff --git a/frontend-web/src/components/workspace/agents/agent-gallery.tsx b/frontend-web/src/components/workspace/agents/agent-gallery.tsx
index 5d1f04cc..2783bffb 100644
--- a/frontend-web/src/components/workspace/agents/agent-gallery.tsx
+++ b/frontend-web/src/components/workspace/agents/agent-gallery.tsx
@@ -146,15 +146,21 @@ export function AgentGallery() {
 
   const renderEmpty = (description: string, showNewButton = false) => (
     <div className="flex h-64 flex-col items-center justify-center gap-3 text-center">
-      <div className="bg-muted flex h-14 w-14 items-center justify-center rounded-full">
-        <BotIcon className="text-muted-foreground h-7 w-7" />
+      <div className="bg-muted flex h-14 w-14 items-center justify-center rounded-full dark:bg-[#022248]">
+        <BotIcon className="text-muted-foreground h-7 w-7 dark:text-[#AACEFF]" />
       </div>
       <div>
-        <p className="font-medium">{t.agents.emptyTitle}</p>
-        <p className="text-muted-foreground mt-1 text-sm">{description}</p>
+        <p className="font-medium dark:text-[#AACEFF]">{t.agents.emptyTitle}</p>
+        <p className="text-muted-foreground mt-1 text-sm dark:text-[#55A6FE]">
+          {description}
+        </p>
       </div>
       {showNewButton && (
-        <Button variant="outline" className="mt-2" onClick={handleNewAgent}>
+        <Button
+          variant="outline"
+          className="mt-2 dark:border-[#2580FF] dark:bg-[#2580FF] dark:text-white dark:hover:border-[#2580FF] dark:hover:bg-[#2580FF]/90 dark:hover:text-white"
+          onClick={handleNewAgent}
+        >
           <PlusIcon className="mr-1.5 h-4 w-4" />
           {t.agents.newAgent}
         </Button>
diff --git a/frontend-web/src/components/workspace/tags/tag-search-bar.tsx b/frontend-web/src/components/workspace/tags/tag-search-bar.tsx
index 1430e9df..e4ffe2b4 100644
--- a/frontend-web/src/components/workspace/tags/tag-search-bar.tsx
+++ b/frontend-web/src/components/workspace/tags/tag-search-bar.tsx
@@ -68,7 +68,7 @@ export function TagSearchBar({
   return (
     <div className={cn("flex flex-col gap-2.5", className)}>
       <div className="relative">
-        <SearchIcon className="text-muted-foreground absolute left-2.5 top-1/2 size-4 -translate-y-1/2" />
+        <SearchIcon className="text-muted-foreground dark:text-[#60a5fa]/90 absolute left-2.5 top-1/2 size-4 -translate-y-1/2" />
         <Input
           value={input}
           onChange={(e) => setInput(e.target.value)}
diff --git a/frontend-web/src/pages/NewAgentPage.tsx b/frontend-web/src/pages/NewAgentPage.tsx
index 8a5c977c..6129a35b 100644
--- a/frontend-web/src/pages/NewAgentPage.tsx
+++ b/frontend-web/src/pages/NewAgentPage.tsx
@@ -19,6 +19,13 @@ import {
 } from "@/components/ai-elements/prompt-input";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
 import { Textarea } from "@/components/ui/textarea";
 import { ArtifactsProvider } from "@/components/workspace/artifacts";
 import {
@@ -115,10 +122,34 @@ export default function NewAgentPage() {
       return;
     }
     const first = models[0]!.name;
-    setModelInput((prev) => prev || first);
-    setChatModelInput((prev) => prev || first);
+    setModelInput((prev) =>
+      prev && models.some((m) => m.name === prev) ? prev : first,
+    );
+    setChatModelInput((prev) =>
+      prev && models.some((m) => m.name === prev) ? prev : first,
+    );
   }, [models]);
 
+  const resolvedModelInput = useMemo(() => {
+    if (models.length === 0) {
+      return "";
+    }
+    if (modelInput && models.some((m) => m.name === modelInput)) {
+      return modelInput;
+    }
+    return models[0]!.name;
+  }, [modelInput, models]);
+
+  const resolvedChatModelInput = useMemo(() => {
+    if (models.length === 0) {
+      return "";
+    }
+    if (chatModelInput && models.some((m) => m.name === chatModelInput)) {
+      return chatModelInput;
+    }
+    return models[0]!.name;
+  }, [chatModelInput, models]);
+
   const [thread, sendMessage] = useThreadStream({
     threadId,
     assistantId: agentId || undefined,
@@ -347,23 +378,42 @@ export default function NewAgentPage() {
                   <span className="text-muted-foreground text-xs">
                     当前对话模型
                   </span>
-                  <select
-                    value={chatModelInput}
-                    onChange={(event) =>
-                      setChatModelInput(event.currentTarget.value)
-                    }
-                    disabled={isModelsLoading || thread.isLoading}
-                    className="border-input bg-background h-7 min-w-[10rem] rounded-md border px-2 text-xs shadow-xs outline-none"
-                  >
-                    <option value="" disabled>
-                      选择模型
-                    </option>
-                    {models.map((model) => (
-                      <option key={model.name} value={model.name}>
-                        {model.display_name || model.name}
-                      </option>
-                    ))}
-                  </select>
+                  {isModelsLoading || models.length === 0 ? (
+                    <div className="border-input bg-background text-muted-foreground flex h-7 min-w-[10rem] items-center rounded-md border px-2 text-xs shadow-xs dark:border-[#1B477E] dark:bg-[#022248]">
+                      {isModelsLoading ? "加载中…" : "暂无模型"}
+                    </div>
+                  ) : (
+                    <Select
+                      value={resolvedChatModelInput}
+                      onValueChange={setChatModelInput}
+                      disabled={thread.isLoading}
+                    >
+                      <SelectTrigger
+                        className={cn(
+                          "border-input bg-background h-7 min-w-[10rem] px-2 text-xs shadow-xs outline-none",
+                          "dark:border-[#1B477E] dark:bg-[#022248] dark:text-[#AACEFF] dark:hover:bg-[#022248]",
+                          "data-[placeholder]:text-muted-foreground",
+                          "[&_svg]:dark:text-[#AACEE2]",
+                        )}
+                      >
+                        <SelectValue placeholder="选择模型" />
+                      </SelectTrigger>
+                      <SelectContent
+                        position="popper"
+                        className="w-[var(--radix-select-trigger-width)] dark:border-[#1B477E] dark:bg-[#022248]"
+                      >
+                        {models.map((model) => (
+                          <SelectItem
+                            key={model.name}
+                            value={model.name}
+                            className="dark:text-[#AACEFF] dark:data-[highlighted]:bg-[#0062D9] dark:data-[highlighted]:text-white"
+                          >
+                            {model.display_name || model.name}
+                          </SelectItem>
+                        ))}
+                      </SelectContent>
+                    </Select>
+                  )}
                 </div>
                 <PromptInput
                   onSubmit={({ text }) => void handleChatSubmit(text)}
@@ -415,21 +465,41 @@ export default function NewAgentPage() {
 
                 <div className="space-y-2">
                   <label className="text-sm font-medium">模型</label>
-                  <select
-                    value={modelInput}
-                    onChange={(event) => setModelInput(event.currentTarget.value)}
-                    disabled={isModelsLoading}
-                    className="border-input bg-background h-9 w-full rounded-md border px-3 text-sm shadow-xs outline-none"
-                  >
-                    <option value="" disabled>
-                      选择模型
-                    </option>
-                    {models.map((model) => (
-                      <option key={model.name} value={model.name}>
-                        {model.display_name || model.name}
-                      </option>
-                    ))}
-                  </select>
+                  {isModelsLoading || models.length === 0 ? (
+                    <div className="border-input bg-background text-muted-foreground flex h-9 w-full items-center rounded-md border px-3 text-sm shadow-xs dark:border-[#1B477E] dark:bg-[#022248]">
+                      {isModelsLoading ? "加载模型…" : "暂无可用模型"}
+                    </div>
+                  ) : (
+                    <Select
+                      value={resolvedModelInput}
+                      onValueChange={setModelInput}
+                    >
+                      <SelectTrigger
+                        className={cn(
+                          "border-input bg-background h-9 w-full shadow-xs outline-none",
+                          "dark:border-[#1B477E] dark:bg-[#022248] dark:text-[#AACEFF] dark:hover:bg-[#022248]",
+                          "data-[placeholder]:text-muted-foreground",
+                          "[&_svg]:dark:text-[#AACEE2]",
+                        )}
+                      >
+                        <SelectValue placeholder="选择模型" />
+                      </SelectTrigger>
+                      <SelectContent
+                        position="popper"
+                        className="w-[var(--radix-select-trigger-width)] dark:border-[#1B477E] dark:bg-[#022248]"
+                      >
+                        {models.map((model) => (
+                          <SelectItem
+                            key={model.name}
+                            value={model.name}
+                            className="dark:text-[#AACEFF] dark:data-[highlighted]:bg-[#0062D9] dark:data-[highlighted]:text-white"
+                          >
+                            {model.display_name || model.name}
+                          </SelectItem>
+                        ))}
+                      </SelectContent>
+                    </Select>
+                  )}
                   <p className="text-muted-foreground text-xs">
                     该智能体被使用时调用的模型。
                   </p>
@@ -463,7 +533,7 @@ export default function NewAgentPage() {
                       />
                     </div>
                   )}
-                  <div className="max-h-[240px] overflow-y-auto rounded-md border p-2">
+                  <div className="max-h-[240px] overflow-y-auto rounded-md border p-2 dark:border-[#1B477E] dark:bg-[#022248]">
                     {isSkillsLoading ? (
                       <p className="text-muted-foreground text-sm">技能加载中...</p>
                     ) : enabledSkills.length === 0 ? (
diff --git a/offline-backend-20260512/backend/config.yaml b/offline-backend-20260512/backend/config.yaml
index 86bee47b..9a27a6ce 100644
--- a/offline-backend-20260512/backend/config.yaml
+++ b/offline-backend-20260512/backend/config.yaml
@@ -147,14 +147,14 @@ agents_api:
   enabled: true
 
 database:
-  backend: mysql
-  mysql_url: $MYSQL_DATABASE_URL
+  backend: sqlite
+  sqlite_dir: .deer-flow/data
   pool_size: 10
   echo_sql: false
 
 checkpointer:
   type: sqlite
-  connection_string: D:\cursor-work\offline-backend-20260512\backend\.deer-flow\data\deerflow.db
+  connection_string: D:\05271502\deerflow-server\offline-backend-20260512\backend\.deer-flow\data\deerflow.db
 
 # 记忆子系统:跨会话持久化用户画像与 agent 私有记忆。
 # 三层覆盖优先级(高->低):