diff --git a/bun.lock b/bun.lock
index 857ca74..353c87a 100644
--- a/bun.lock
+++ b/bun.lock
@@ -8,6 +8,7 @@
         "@radix-ui/react-checkbox": "^1.3.2",
         "@radix-ui/react-dialog": "^1.1.14",
         "@radix-ui/react-label": "^2.1.7",
+        "@radix-ui/react-popover": "^1.1.14",
         "@radix-ui/react-select": "^2.2.5",
         "@radix-ui/react-separator": "^1.1.7",
         "@radix-ui/react-slot": "^1.2.3",
@@ -19,6 +20,7 @@
         "axios": "^1.6.0",
         "class-variance-authority": "^0.7.1",
         "clsx": "^2.1.1",
+        "dayjs": "^1.11.13",
         "lucide-react": "^0.523.0",
         "next-themes": "^0.4.6",
         "react": "^19.1.0",
@@ -196,6 +198,8 @@
 
     "@radix-ui/react-label": ["@radix-ui/react-label@2.1.7", "", { "dependencies": { "@radix-ui/react-primitive": "2.1.3" }, "peerDependencies": { "@types/react": "*", "@types/react-dom": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc", "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react", "@types/react-dom"] }, "sha512-YT1GqPSL8kJn20djelMX7/cTRp/Y9w5IZHvfxQTVHrOqa2yMl7i/UfMqKRU5V7mEyKTrUVgJXhNQPVCG8PBLoQ=="],
 
+    "@radix-ui/react-popover": ["@radix-ui/react-popover@1.1.14", "", { "dependencies": { "@radix-ui/primitive": "1.1.2", "@radix-ui/react-compose-refs": "1.1.2", "@radix-ui/react-context": "1.1.2", "@radix-ui/react-dismissable-layer": "1.1.10", "@radix-ui/react-focus-guards": "1.1.2", "@radix-ui/react-focus-scope": "1.1.7", "@radix-ui/react-id": "1.1.1", "@radix-ui/react-popper": "1.2.7", "@radix-ui/react-portal": "1.1.9", "@radix-ui/react-presence": "1.1.4", "@radix-ui/react-primitive": "2.1.3", "@radix-ui/react-slot": "1.2.3", "@radix-ui/react-use-controllable-state": "1.2.2", "aria-hidden": "^1.2.4", "react-remove-scroll": "^2.6.3" }, "peerDependencies": { "@types/react": "*", "@types/react-dom": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc", "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react", "@types/react-dom"] }, "sha512-ODz16+1iIbGUfFEfKx2HTPKizg2MN39uIOV8MXeHnmdd3i/N9Wt7vU46wbHsqA0xoaQyXVcs0KIlBdOA2Y95bw=="],
+
     "@radix-ui/react-popper": ["@radix-ui/react-popper@1.2.7", "", { "dependencies": { "@floating-ui/react-dom": "^2.0.0", "@radix-ui/react-arrow": "1.1.7", "@radix-ui/react-compose-refs": "1.1.2", "@radix-ui/react-context": "1.1.2", "@radix-ui/react-primitive": "2.1.3", "@radix-ui/react-use-callback-ref": "1.1.1", "@radix-ui/react-use-layout-effect": "1.1.1", "@radix-ui/react-use-rect": "1.1.1", "@radix-ui/react-use-size": "1.1.1", "@radix-ui/rect": "1.1.1" }, "peerDependencies": { "@types/react": "*", "@types/react-dom": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc", "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react", "@types/react-dom"] }, "sha512-IUFAccz1JyKcf/RjB552PlWwxjeCJB8/4KxT7EhBHOJM+mN7LdW+B3kacJXILm32xawcMMjb2i0cIZpo+f9kiQ=="],
 
     "@radix-ui/react-portal": ["@radix-ui/react-portal@1.1.9", "", { "dependencies": { "@radix-ui/react-primitive": "2.1.3", "@radix-ui/react-use-layout-effect": "1.1.1" }, "peerDependencies": { "@types/react": "*", "@types/react-dom": "*", "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc", "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc" }, "optionalPeers": ["@types/react", "@types/react-dom"] }, "sha512-bpIxvq03if6UNwXZ+HTK71JLh4APvnXntDc6XOX8UVq4XQOVl7lwok0AvIl+b8zgCw3fSaVTZMpAPPagXbKmHQ=="],
@@ -444,6 +448,8 @@
 
     "csstype": ["csstype@3.1.3", "", {}, "sha512-M1uQkMl8rQK/szD0LNhtqxIPLpimGm8sOBwU7lLnCpSbTyY3yeU1Vc7l4KT5zT4s/yOxHH5O7tIuuLOCnLADRw=="],
 
+    "dayjs": ["dayjs@1.11.13", "", {}, "sha512-oaMBel6gjolK862uaPQOVTA7q3TZhuSvuMQAAglQDOWYO9A91IrAOUJEyKVlqJlHE0vq5p5UXxzdPfMH/x6xNg=="],
+
     "debug": ["debug@4.4.1", "", { "dependencies": { "ms": "^2.1.3" } }, "sha512-KcKCqiftBJcZr++7ykoDIEwSa3XWowTfNPo92BYxjXiyYEVrUQh2aLyhxBCwww+heortUFxEJYcRzosstTEBYQ=="],
 
     "deep-is": ["deep-is@0.1.4", "", {}, "sha512-oIPzksmTg4/MriiaYGO+okXDT7ztn/w3Eptv/+gSIdMdKsJo0u4CfYNFJPy+4SKMuCqGw2wxnA+URMg3t8a/bQ=="],
diff --git a/package.json b/package.json
index 77366ca..a98a5e0 100644
--- a/package.json
+++ b/package.json
@@ -17,6 +17,7 @@
     "@radix-ui/react-checkbox": "^1.3.2",
     "@radix-ui/react-dialog": "^1.1.14",
     "@radix-ui/react-label": "^2.1.7",
+    "@radix-ui/react-popover": "^1.1.14",
     "@radix-ui/react-select": "^2.2.5",
     "@radix-ui/react-separator": "^1.1.7",
     "@radix-ui/react-slot": "^1.2.3",
diff --git a/src/components/block/BgPaddingMultiSelect.tsx b/src/components/block/BgPaddingMultiSelect.tsx
new file mode 100644
index 0000000..9527355
--- /dev/null
+++ b/src/components/block/BgPaddingMultiSelect.tsx
@@ -0,0 +1,92 @@
+import React, { useRef } from 'react';
+import { Input } from '@/components/ui/input';
+import { Label } from '@/components/ui/label';
+import { Button } from '@/components/ui/button';
+import { cn } from '@/lib/utils';
+
+export interface BgPaddingMultiValueItem {
+  file: File;
+  text: string;
+}
+export type BgPaddingMultiValue = BgPaddingMultiValueItem[];
+
+export interface BgPaddingMultiSelectProps {
+  value: BgPaddingMultiValue;
+  onChange: (value: BgPaddingMultiValue) => void;
+  className?: string;
+}
+
+export const BgPaddingMultiSelect: React.FC<BgPaddingMultiSelectProps> = ({ value, onChange, className }) => {
+  const fileInputRef = useRef<HTMLInputElement>(null);
+
+  // 触发文件选择
+  const handleAddClick = () => {
+    fileInputRef.current?.click();
+  };
+
+  // 处理多文件选择
+  const handleFilesChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const files = Array.from(e.target.files || []);
+    if (files.length > 0) {
+      const newItems = files.map(file => ({
+        file,
+        text: file.name.replace(/\.[^.]+$/, ''),
+      }));
+      onChange([...value, ...newItems]);
+      // 清空 input 以便连续选择同一文件
+      e.target.value = '';
+    }
+  };
+
+  // 单项描述变更
+  const handleTextChange = (idx: number, text: string) => {
+    const newArr = value.map((item, i) => (i === idx ? { ...item, text } : item));
+    onChange(newArr);
+  };
+
+  // 移除某项
+  const handleRemove = (idx: number) => {
+    const newArr = value.filter((_, i) => i !== idx);
+    onChange(newArr);
+  };
+
+  return (
+    <div className={cn('space-y-4 flex flex-col gap-2', className)}>
+      <Button type='button' onClick={handleAddClick} variant='outline'>
+        添加图片
+      </Button>
+      <Input type='file' accept='image/*' multiple ref={fileInputRef} style={{ display: 'none' }} onChange={handleFilesChange} />
+      <div className='space-y-6'>
+        {value.map((item, idx) => (
+          <div key={idx} className='border rounded-md p-3 flex flex-col gap-2 relative bg-muted/30'>
+            <div className='flex items-center gap-2'>
+              <img
+                src={URL.createObjectURL(item.file)}
+                alt={item.text || item.file.name}
+                className='h-12 w-auto rounded-md object-cover border'
+                style={{ maxWidth: 96 }}
+              />
+              <span className='text-sm text-muted-foreground wrap-anywhere'>{item.file.name}</span>
+              <Button type='button' size='sm' variant='ghost' onClick={() => handleRemove(idx)}>
+                移除
+              </Button>
+            </div>
+            <Label htmlFor={`bg-multi-text-${idx}`}>图片描述/备注</Label>
+            <textarea
+              id={`bg-multi-text-${idx}`}
+              className={cn(
+                'w-full min-h-[60px] rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2',
+                'resize-vertical'
+              )}
+              value={item.text}
+              onChange={e => handleTextChange(idx, e.target.value)}
+              placeholder='请输入图片描述或备注...'
+            />
+          </div>
+        ))}
+      </div>
+    </div>
+  );
+};
+
+export default BgPaddingMultiSelect;
diff --git a/src/components/block/BgPaddingSelect.tsx b/src/components/block/BgPaddingSelect.tsx
new file mode 100644
index 0000000..4efd13b
--- /dev/null
+++ b/src/components/block/BgPaddingSelect.tsx
@@ -0,0 +1,59 @@
+import React, { useRef } from 'react';
+import { Input } from '@/components/ui/input';
+import { Label } from '@/components/ui/label';
+import { cn } from '@/lib/utils';
+
+export interface BgPaddingValue {
+  file?: File;
+  text: string;
+}
+
+export interface BgPaddingSelectProps {
+  value: BgPaddingValue;
+  onChange: (value: BgPaddingValue) => void;
+  className?: string;
+}
+
+export const BgPaddingSelect: React.FC<BgPaddingSelectProps> = ({ value, onChange, className }) => {
+  const fileInputRef = useRef<HTMLInputElement>(null);
+
+  const handleFileChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const file = e.target.files?.[0];
+    if (file) {
+      let newText = value.text;
+      if (!value.text) {
+        // 自动填充文件名（去除后缀）
+        const name = file.name.replace(/\.[^.]+$/, '');
+        newText = name;
+      }
+      onChange({ file, text: newText });
+    }
+  };
+
+  const handleTextChange = (e: React.ChangeEvent<HTMLTextAreaElement>) => {
+    onChange({ ...value, text: e.target.value });
+  };
+
+  return (
+    <div className={cn('space-y-4', className)}>
+      <div>
+        <Label htmlFor='bg-file'>选择本地图片</Label>
+        <Input id='bg-file' type='file' accept='image/*' ref={fileInputRef} onChange={handleFileChange} />
+        {value.file && <div className='mt-2 text-sm text-muted-foreground'>已选择：{value.file.name}</div>}
+      </div>
+      <div>
+        <Label htmlFor='bg-text'>图片描述/备注</Label>
+        <textarea
+          id='bg-text'
+          className={cn(
+            'w-full min-h-[80px] rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2',
+            'resize-vertical'
+          )}
+          value={value.text}
+          onChange={handleTextChange}
+          placeholder='请输入图片描述或备注...'
+        />
+      </div>
+    </div>
+  );
+};
diff --git a/src/components/block/CascaderMultiSelect.tsx b/src/components/block/CascaderMultiSelect.tsx
index ff93ffd..016b4fc 100644
--- a/src/components/block/CascaderMultiSelect.tsx
+++ b/src/components/block/CascaderMultiSelect.tsx
@@ -1,4 +1,9 @@
 import React, { useState } from 'react';
+import { Button } from '../ui/button';
+import { Popover, PopoverTrigger, PopoverContent } from '@/components/ui/popover';
+import { X } from 'lucide-react';
+import { Checkbox } from '@/components/ui/checkbox';
+import { cn } from '@/lib/utils';
 
 interface CascaderNode {
   title: string;
@@ -26,8 +31,6 @@ const getLeafPaths = (tree: CascaderNode[], prefix: string[] = []): string[][] =
 };
 
 const CascaderMultiSelect: React.FC<CascaderMultiSelectProps> = ({ options, value, onChange }) => {
-  const [open, setOpen] = useState(false);
-
   // 判断某路径是否已选
   const isSelected = (path: string[]) => value.some(v => v.join('/') === path.join('/'));
 
@@ -47,12 +50,17 @@ const CascaderMultiSelect: React.FC<CascaderMultiSelectProps> = ({ options, valu
 
   // 渲染 tag
   const renderTags = () => (
-    <div className='flex flex-wrap gap-1'>
+    <div className={cn(value.length > 0 ? 'mb-2' : '', 'flex flex-wrap gap-2')}>
       {value.map(v => (
-        <span key={v.join('/')} className='bg-primary/10 text-primary px-2 py-0.5 rounded text-xs flex items-center gap-1'>
+        <span key={v.join('/')} className='inline-flex items-center gap-1 px-2 py-0.5 rounded-full text-xs font-medium bg-primary/10 text-primary'>
           {v.join(' / ')}
-          <button type='button' className='ml-1 text-xs hover:text-red-500' onClick={() => handleRemove(v)} style={{ lineHeight: 1 }}>
-            ×
+          <button
+            type='button'
+            className='ml-1 rounded-full p-0.5 hover:bg-red-100 hover:text-red-600 transition-colors'
+            onClick={() => handleRemove(v)}
+            aria-label='移除'
+          >
+            <X className='w-3 h-3' />
           </button>
         </span>
       ))}
@@ -77,8 +85,8 @@ const CascaderMultiSelect: React.FC<CascaderMultiSelectProps> = ({ options, valu
         } else {
           return (
             <li key={path.join('/')} className='flex items-center gap-1 py-1 pl-2 hover:bg-muted/50 rounded'>
-              <label className='flex items-center gap-1 cursor-pointer w-full'>
-                <input type='checkbox' checked={isSelected(path)} onChange={() => handleSelect(path)} className='accent-primary' />
+              <label className='flex items-center gap-2 cursor-pointer w-full text-sm'>
+                <Checkbox checked={isSelected(path)} onCheckedChange={() => handleSelect(path)} className='border-muted-foreground/20' />
                 <span>{node.title}</span>
               </label>
             </li>
@@ -88,30 +96,19 @@ const CascaderMultiSelect: React.FC<CascaderMultiSelectProps> = ({ options, valu
     </ul>
   );
 
-  // 渲染全部展开的级联下拉
-  const renderCascader = () => (
-    <div
-      className='absolute z-50 bg-white border rounded shadow-lg p-2 mt-1 min-w-[220px] max-h-96 overflow-auto'
-      style={{ boxShadow: '0 4px 24px 0 rgba(0,0,0,0.10)' }}
-    >
-      <style>{`
-        .custom-scrollbar::-webkit-scrollbar { width: 6px; background: transparent; }
-        .custom-scrollbar::-webkit-scrollbar-thumb { background: #e5e7eb; border-radius: 3px; }
-      `}</style>
-      <div className='custom-scrollbar'>{renderTree(options)}</div>
-    </div>
-  );
-
   return (
-    <div className='relative'>
-      <div className='flex items-center gap-2 flex-wrap'>
-        {renderTags()}
-        <button type='button' className='border px-2 py-1 rounded text-xs bg-white hover:bg-muted' onClick={() => setOpen(v => !v)}>
-          选择场景
-        </button>
-      </div>
-      {open && renderCascader()}
-      {open && <div className='fixed inset-0 z-40' onClick={() => setOpen(false)} />}
+    <div className='flex flex-col '>
+      {renderTags()}
+      <Popover>
+        <PopoverTrigger asChild>
+          <Button type='button' variant='outline'>
+            选择场景
+          </Button>
+        </PopoverTrigger>
+        <PopoverContent className='p-2'>
+          <div className='min-w-[220px] max-h-96 overflow-auto'>{renderTree(options)}</div>
+        </PopoverContent>
+      </Popover>
     </div>
   );
 };
diff --git a/src/components/ui/popover.tsx b/src/components/ui/popover.tsx
new file mode 100644
index 0000000..6d51b6c
--- /dev/null
+++ b/src/components/ui/popover.tsx
@@ -0,0 +1,46 @@
+import * as React from "react"
+import * as PopoverPrimitive from "@radix-ui/react-popover"
+
+import { cn } from "@/lib/utils"
+
+function Popover({
+  ...props
+}: React.ComponentProps<typeof PopoverPrimitive.Root>) {
+  return <PopoverPrimitive.Root data-slot="popover" {...props} />
+}
+
+function PopoverTrigger({
+  ...props
+}: React.ComponentProps<typeof PopoverPrimitive.Trigger>) {
+  return <PopoverPrimitive.Trigger data-slot="popover-trigger" {...props} />
+}
+
+function PopoverContent({
+  className,
+  align = "center",
+  sideOffset = 4,
+  ...props
+}: React.ComponentProps<typeof PopoverPrimitive.Content>) {
+  return (
+    <PopoverPrimitive.Portal>
+      <PopoverPrimitive.Content
+        data-slot="popover-content"
+        align={align}
+        sideOffset={sideOffset}
+        className={cn(
+          "bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 z-50 w-72 origin-(--radix-popover-content-transform-origin) rounded-md border p-4 shadow-md outline-hidden",
+          className
+        )}
+        {...props}
+      />
+    </PopoverPrimitive.Portal>
+  )
+}
+
+function PopoverAnchor({
+  ...props
+}: React.ComponentProps<typeof PopoverPrimitive.Anchor>) {
+  return <PopoverPrimitive.Anchor data-slot="popover-anchor" {...props} />
+}
+
+export { Popover, PopoverTrigger, PopoverContent, PopoverAnchor }
diff --git a/src/pages/ChangeBgPage/components/ClothingCard.tsx b/src/pages/ChangeBgPage/components/ClothingCard.tsx
index 686cab1..52d8eee 100644
--- a/src/pages/ChangeBgPage/components/ClothingCard.tsx
+++ b/src/pages/ChangeBgPage/components/ClothingCard.tsx
@@ -1,8 +1,11 @@
+import { BgPaddingMultiSelect, type BgPaddingMultiValue } from '@/components/block/BgPaddingMultiSelect';
 import CascaderMultiSelect from '@/components/block/CascaderMultiSelect';
 import { Button } from '@/components/ui/button';
 import { Card, CardAction, CardContent, CardHeader } from '@/components/ui/card';
 import { X } from 'lucide-react';
 import React from 'react';
+import { Switch } from '@/components/ui/switch';
+import { Label } from '@/components/ui/label';
 
 interface ClothingCardProps {
   imageUrl: string;
@@ -11,9 +14,24 @@ interface ClothingCardProps {
   scenes?: string[][];
   onScenesChange?: (scenes: string[][]) => void;
   fileName?: string;
+  bgMode: 'custom' | 'scene';
+  onChangeBgMode: (bgMode: 'custom' | 'scene') => void;
+  paddingList?: BgPaddingMultiValue;
+  onPaddingListChange?: (paddingList: BgPaddingMultiValue) => void;
 }
 
-const ClothingCard: React.FC<ClothingCardProps> = ({ imageUrl, onRemove, scenesOptions = [], scenes = [], onScenesChange, fileName }) => {
+const ClothingCard: React.FC<ClothingCardProps> = ({
+  imageUrl,
+  onRemove,
+  scenesOptions = [],
+  scenes = [],
+  onScenesChange,
+  fileName,
+  bgMode,
+  onChangeBgMode,
+  paddingList,
+  onPaddingListChange,
+}) => {
   return (
     <Card className='relative md:flex-row gap-6 group hover:shadow-lg transition-shadow'>
       <CardHeader className='p-0'>
@@ -36,11 +54,27 @@ const ClothingCard: React.FC<ClothingCardProps> = ({ imageUrl, onRemove, scenesO
           {fileName && <div className='mt-2 text-xs text-muted-foreground break-all max-w-[200px]'>{fileName}</div>}
         </div>
         <div className='flex-1 flex flex-col gap-6'>
-          {/* 场景级联多选 */}
-          <div className='w-full flex flex-row items-center gap-2'>
+          {/* 场景级联多选/自定义上传切换 */}
+          <div className='w-full flex flex-row items-start gap-4'>
             <label className='w-16 text-right flex-shrink-0'>场景</label>
-            <div className='flex-1'>
-              <CascaderMultiSelect options={scenesOptions} value={scenes || []} onChange={onScenesChange || (() => {})} />
+            <div className='flex flex-col gap-2 min-h-40 w-full overflow-y-auto'>
+              <div className='flex items-center gap-2 h-6'>
+                <Switch
+                  id='custom-mode-switch'
+                  checked={bgMode === 'custom'}
+                  onCheckedChange={() => onChangeBgMode(bgMode === 'custom' ? 'scene' : 'custom')}
+                />
+                <Label htmlFor='custom-mode-switch'>{bgMode === 'custom' ? '自定义垫图' : '内置场景'}</Label>
+              </div>
+              <div className='w-full flex flex-row items-center gap-2'>
+                <div className='flex-1'>
+                  {bgMode === 'scene' ? (
+                    <CascaderMultiSelect options={scenesOptions} value={scenes || []} onChange={onScenesChange || (() => {})} />
+                  ) : (
+                    <BgPaddingMultiSelect value={paddingList || []} onChange={onPaddingListChange || (() => {})} />
+                  )}
+                </div>
+              </div>
             </div>
           </div>
         </div>
diff --git a/src/pages/ChangeBgPage/index.tsx b/src/pages/ChangeBgPage/index.tsx
index 489ab2b..c57370a 100644
--- a/src/pages/ChangeBgPage/index.tsx
+++ b/src/pages/ChangeBgPage/index.tsx
@@ -5,7 +5,13 @@ import React, { useEffect, useRef, useState } from 'react';
 import { useForm } from 'react-hook-form';
 import { z } from 'zod';
 import ClothingCard from './components/ClothingCard';
-import { api, type Body_local_cloud_async_change_bg_api_v2_cloud_batch_change_bg_post } from '@/api';
+import {
+  api,
+  type Body_async_cloud_change_bg_v3_api_v3_cloud_batch_change_bg_post,
+  type Body_async_cloud_gen_images_v3_api_v3_cloud_batch_edit_images_post,
+  type Body_local_cloud_async_change_bg_api_v2_cloud_batch_change_bg_post,
+} from '@/api';
+import { type BgPaddingMultiValue } from '@/components/block/BgPaddingMultiSelect';
 
 // 五级联动的 tag schema
 const tagSchema = z.object({
@@ -20,6 +26,8 @@ const formSchema = z.object({
 
 interface TagForm {
   scenes?: string[][];
+  paddingList?: BgPaddingMultiValue;
+  bgMode?: 'custom' | 'scene';
 }
 
 interface FormValues {
@@ -93,6 +101,20 @@ const TryOnPage: React.FC = () => {
     form.setValue('tags', newTags);
   };
 
+  // 自定义上传
+  const handlePaddingListChange = (idx: number, paddingList: BgPaddingMultiValue) => {
+    const newTags = [...form.getValues('tags')];
+    newTags[idx] = { ...newTags[idx], paddingList };
+    form.setValue('tags', newTags);
+  };
+
+  // 切换背景模式
+  const handleBgModeChange = (idx: number, bgMode: 'custom' | 'scene') => {
+    const newTags = [...form.getValues('tags')];
+    newTags[idx] = { ...newTags[idx], bgMode };
+    form.setValue('tags', newTags);
+  };
+
   // 递归查找 prompt
   function findPromptByPath(tree: any[], path: string[]): string {
     let node: any = null;
@@ -114,19 +136,34 @@ const TryOnPage: React.FC = () => {
     try {
       for (let i = 0; i < values.clothing_images.length; i++) {
         const tag = values.tags[i];
-        const scenesArr: string[][] = tag.scenes || [];
-        for (const path of scenesArr) {
-          const scene = {
-            title: path.join('/'),
-            prompt: findPromptByPath(scenesOptions, path),
-          };
-          const formData: Body_local_cloud_async_change_bg_api_v2_cloud_batch_change_bg_post = {
-            clothing_images: [values.clothing_images[i]],
-            scenes_list: JSON.stringify([{ title: scene.title, prompt: scene.prompt }]),
-          };
-          // eslint-disable-next-line no-await-in-loop
-          const res = await api.ImageGenerateService.localCloudAsyncChangeBgApiV2CloudBatchChangeBgPost({ formData });
-          results.push(res);
+        const bgMode = tag.bgMode || 'scene';
+        if (bgMode === 'custom') {
+          // 自定义模式
+          const paddingList = tag.paddingList || [];
+          for (const padding of paddingList) {
+            const formData: Body_async_cloud_change_bg_v3_api_v3_cloud_batch_change_bg_post = {
+              clothing_images: [values.clothing_images[i]],
+              padding_images: [padding.file],
+              bg_prompts: padding.text,
+            };
+            const res = await api.ImageGenerateService.asyncCloudChangeBgV3ApiV3CloudBatchChangeBgPost({ formData });
+            results.push(res);
+          }
+        } else {
+          // 场景模式
+          const scenesArr: string[][] = tag.scenes || [];
+          for (const path of scenesArr) {
+            const scene = {
+              title: path.join('/'),
+              prompt: findPromptByPath(scenesOptions, path),
+            };
+            const formData: Body_local_cloud_async_change_bg_api_v2_cloud_batch_change_bg_post = {
+              clothing_images: [values.clothing_images[i]],
+              scenes_list: JSON.stringify([{ title: scene.title, prompt: scene.prompt }]),
+            };
+            const res = await api.ImageGenerateService.localCloudAsyncChangeBgApiV2CloudBatchChangeBgPost({ formData });
+            results.push(res);
+          }
         }
       }
       setResult(results);
@@ -160,6 +197,10 @@ const TryOnPage: React.FC = () => {
                     scenes={tag.scenes || []}
                     onScenesChange={scenes => handleScenesChange(idx, scenes)}
                     fileName={fileName}
+                    paddingList={tag.paddingList || []}
+                    onPaddingListChange={paddingList => handlePaddingListChange(idx, paddingList)}
+                    bgMode={tag.bgMode || 'scene'}
+                    onChangeBgMode={bgMode => handleBgModeChange(idx, bgMode)}
                   />
                 );
               })}
diff --git a/src/pages/TryOnPage/components/ClothingCard.tsx b/src/pages/TryOnPage/components/ClothingCard.tsx
index 104e41b..784808e 100644
--- a/src/pages/TryOnPage/components/ClothingCard.tsx
+++ b/src/pages/TryOnPage/components/ClothingCard.tsx
@@ -1,7 +1,10 @@
+import { BgPaddingMultiSelect, type BgPaddingMultiValue } from '@/components/block/BgPaddingMultiSelect';
 import CascaderMultiSelect from '@/components/block/CascaderMultiSelect';
 import { Button } from '@/components/ui/button';
 import { Card, CardAction, CardContent, CardHeader } from '@/components/ui/card';
+import { Label } from '@/components/ui/label';
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select';
+import { Switch } from '@/components/ui/switch';
 import { X } from 'lucide-react';
 import React from 'react';
 
@@ -33,6 +36,11 @@ interface ClothingCardProps {
   scenes?: string[][];
   onScenesChange?: (scenes: string[][]) => void;
   fileName?: string;
+
+  bgMode: 'custom' | 'scene';
+  onChangeBgMode: (bgMode: 'custom' | 'scene') => void;
+  paddingList?: BgPaddingMultiValue;
+  onPaddingListChange?: (paddingList: BgPaddingMultiValue) => void;
 }
 
 const LABELS = ['性别', '类别', '尺寸', '材质', '颜色'];
@@ -49,6 +57,10 @@ const ClothingCard: React.FC<ClothingCardProps> = ({
   scenes = [],
   onScenesChange,
   fileName,
+  bgMode,
+  onChangeBgMode,
+  paddingList,
+  onPaddingListChange,
 }) => {
   return (
     <Card className='relative md:flex-row gap-6 group hover:shadow-lg transition-shadow'>
@@ -100,11 +112,29 @@ const ClothingCard: React.FC<ClothingCardProps> = ({
               </div>
             );
           })}
-          {/* 场景级联多选 */}
-          <div className='w-full flex flex-row items-center gap-2'>
-            <label className='w-16 text-right flex-shrink-0'>场景</label>
-            <div className='flex-1'>
-              <CascaderMultiSelect options={scenesOptions} value={scenes || []} onChange={onScenesChange || (() => {})} />
+          <div className='flex-1 flex flex-col gap-6'>
+            {/* 场景级联多选/自定义上传切换 */}
+            <div className='w-full flex flex-row items-start gap-4'>
+              <label className='w-16 text-right flex-shrink-0'>场景</label>
+              <div className='flex flex-col gap-2 min-h-40 w-full overflow-y-auto'>
+                <div className='flex items-center gap-2 h-6'>
+                  <Switch
+                    id='custom-mode-switch'
+                    checked={bgMode === 'custom'}
+                    onCheckedChange={() => onChangeBgMode(bgMode === 'custom' ? 'scene' : 'custom')}
+                  />
+                  <Label htmlFor='custom-mode-switch'>{bgMode === 'custom' ? '自定义垫图' : '内置场景'}</Label>
+                </div>
+                <div className='w-full flex flex-row items-center gap-2'>
+                  <div className='flex-1'>
+                    {bgMode === 'scene' ? (
+                      <CascaderMultiSelect options={scenesOptions} value={scenes || []} onChange={onScenesChange || (() => {})} />
+                    ) : (
+                      <BgPaddingMultiSelect value={paddingList || []} onChange={onPaddingListChange || (() => {})} />
+                    )}
+                  </div>
+                </div>
+              </div>
             </div>
           </div>
         </div>
diff --git a/src/pages/TryOnPage/index.tsx b/src/pages/TryOnPage/index.tsx
index 92103d2..bc3c464 100644
--- a/src/pages/TryOnPage/index.tsx
+++ b/src/pages/TryOnPage/index.tsx
@@ -6,7 +6,8 @@ import React, { useEffect, useRef, useState } from 'react';
 import { useForm } from 'react-hook-form';
 import { z } from 'zod';
 import ClothingCard from './components/ClothingCard';
-import { api } from '@/api';
+import { api, type Body_async_cloud_gen_images_v3_api_v3_cloud_batch_edit_images_post } from '@/api';
+import { type BgPaddingMultiValue } from '@/components/block/BgPaddingMultiSelect';
 
 // 五级联动的 tag schema
 const tagSchema = z.object({
@@ -30,7 +31,9 @@ interface TagForm {
   size: string;
   material: string;
   color: string;
+  bgMode?: 'custom' | 'scene';
   scenes?: string[][];
+  paddingList?: BgPaddingMultiValue;
 }
 
 interface FormValues {
@@ -123,6 +126,20 @@ const TryOnPage: React.FC = () => {
     form.setValue('tags', newTags);
   };
 
+  // 自定义上传
+  const handlePaddingListChange = (idx: number, paddingList: BgPaddingMultiValue) => {
+    const newTags = [...form.getValues('tags')];
+    newTags[idx] = { ...newTags[idx], paddingList };
+    form.setValue('tags', newTags);
+  };
+
+  // 切换背景模式
+  const handleBgModeChange = (idx: number, bgMode: 'custom' | 'scene') => {
+    const newTags = [...form.getValues('tags')];
+    newTags[idx] = { ...newTags[idx], bgMode };
+    form.setValue('tags', newTags);
+  };
+
   // 计算每个卡片的options
   const getTagOptions = (idx: number) => {
     const tag = tags[idx] || {};
@@ -163,21 +180,35 @@ const TryOnPage: React.FC = () => {
     try {
       for (let i = 0; i < values.clothing_images.length; i++) {
         const tag = values.tags[i];
+        const bgMode = tag.bgMode || 'scene';
         const scenesArr: string[][] = tag.scenes || [];
-        for (const path of scenesArr) {
-          const scene = {
-            title: path.join('/'),
-            prompt: findPromptByPath(scenesOptions, path),
-          };
-          const formData: Body_local_async_gen_images_api_v2_local_batch_edit_images_post = {
-            clothing_images: [values.clothing_images[i]],
-            tag_list: JSON.stringify([[tag.sex, tag.category, tag.size, tag.material, tag.color].join('_')]),
-            scenes_list: JSON.stringify([{ title: scene.title, prompt: scene.prompt }]),
-            mode: 'both',
-          };
-          // eslint-disable-next-line no-await-in-loop
-          const res = await api.ImageGenerateService.localAsyncGenImagesApiV2LocalBatchEditImagesPost({ formData });
-          results.push(res);
+        if (bgMode === 'custom') {
+          const paddingList = tag.paddingList || [];
+          for (const padding of paddingList) {
+            const formData: Body_async_cloud_gen_images_v3_api_v3_cloud_batch_edit_images_post = {
+              clothing_images: [values.clothing_images[i]],
+              tag_list: JSON.stringify([[tag.sex, tag.category, tag.size, tag.material, tag.color].join('_')]),
+              padding_clothes: [padding.file],
+              bg_prompts: padding.text,
+            };
+            const res = await api.ImageGenerateService.asyncCloudGenImagesV3ApiV3CloudBatchEditImagesPost({ formData });
+            results.push(res);
+          }
+        } else {
+          for (const path of scenesArr) {
+            const scene = {
+              title: path.join('/'),
+              prompt: findPromptByPath(scenesOptions, path),
+            };
+            const formData: Body_local_async_gen_images_api_v2_local_batch_edit_images_post = {
+              clothing_images: [values.clothing_images[i]],
+              tag_list: JSON.stringify([[tag.sex, tag.category, tag.size, tag.material, tag.color].join('_')]),
+              scenes_list: JSON.stringify([{ title: scene.title, prompt: scene.prompt }]),
+              mode: 'both',
+            };
+            const res = await api.ImageGenerateService.localAsyncGenImagesApiV2LocalBatchEditImagesPost({ formData });
+            results.push(res);
+          }
         }
       }
       setResult(results);
@@ -216,6 +247,10 @@ const TryOnPage: React.FC = () => {
                     scenes={tag.scenes || []}
                     onScenesChange={scenes => handleScenesChange(idx, scenes)}
                     fileName={fileName}
+                    bgMode={tag.bgMode || 'scene'}
+                    onChangeBgMode={bgMode => handleBgModeChange(idx, bgMode)}
+                    paddingList={tag.paddingList || []}
+                    onPaddingListChange={paddingList => handlePaddingListChange(idx, paddingList)}
                   />
                 );
               })}