feat: 添加最大仓位限制配置功能

后端变更：
- 添加最大仓位金额(maxPositionValue)和最大仓位数量(maxPositionCount)配置字段
- 实现按市场检查仓位限制的过滤逻辑
- 添加数据库迁移脚本 V11__add_max_position_config.sql

前端变更：
- 重构账户导入和Leader添加为可复用组件(AccountImportForm, LeaderAddForm)
- 在CopyTradingAdd页面集成账户导入和Leader添加Modal
- 在CopyTradingAdd/CopyTradingEdit页面添加最大仓位限制配置项
- 补充所有多语言文件中的缺失键，确保zh-CN/zh-TW/en三种语言文件一致

功能说明：
- 支持设置单个市场的最大仓位金额限制（USDC）
- 支持设置单个市场的最大仓位数量限制
- 两个限制可以同时启用，下单前会检查当前市场仓位是否超过限制

frontend/src/components/AccountImportForm.tsx

@@ -0,0 +1,342 @@
+import { useState } from 'react'
+import { Form, Input, Button, Radio, Space, Alert, message } from 'antd'
+import { useTranslation } from 'react-i18next'
+import { useAccountStore } from '../store/accountStore'
+import { 
+  getAddressFromPrivateKey, 
+  getAddressFromMnemonic,
+  getPrivateKeyFromMnemonic,
+  isValidWalletAddress, 
+  isValidPrivateKey,
+  isValidMnemonic
+} from '../utils'
+import { useMediaQuery } from 'react-responsive'
+
+type ImportType = 'privateKey' | 'mnemonic'
+
+interface AccountImportFormProps {
+  form: any
+  onSuccess?: (accountId: number) => void
+  onCancel?: () => void
+  showAlert?: boolean
+  showCancelButton?: boolean
+}
+
+const AccountImportForm: React.FC<AccountImportFormProps> = ({
+  form,
+  onSuccess,
+  onCancel,
+  showAlert = true,
+  showCancelButton = true
+}) => {
+  const { t } = useTranslation()
+  const isMobile = useMediaQuery({ maxWidth: 768 })
+  const { importAccount, loading } = useAccountStore()
+  const [importType, setImportType] = useState<ImportType>('privateKey')
+  const [derivedAddress, setDerivedAddress] = useState<string>('')
+  const [addressError, setAddressError] = useState<string>('')
+  
+  // 当私钥输入时，自动推导地址
+  const handlePrivateKeyChange = (e: React.ChangeEvent<HTMLTextAreaElement>) => {
+    const privateKey = e.target.value.trim()
+    if (!privateKey) {
+      setDerivedAddress('')
+      setAddressError('')
+      return
+    }
+    
+    // 验证私钥格式
+    if (!isValidPrivateKey(privateKey)) {
+      setAddressError(t('accountImport.privateKeyInvalid'))
+      setDerivedAddress('')
+      return
+    }
+    
+    try {
+      const address = getAddressFromPrivateKey(privateKey)
+      setDerivedAddress(address)
+      setAddressError('')
+      
+      // 自动填充钱包地址字段
+      form.setFieldsValue({ walletAddress: address })
+    } catch (error: any) {
+      setAddressError(error.message || t('accountImport.addressError'))
+      setDerivedAddress('')
+    }
+  }
+  
+  // 当助记词输入时，自动推导地址
+  const handleMnemonicChange = (e: React.ChangeEvent<HTMLTextAreaElement>) => {
+    const mnemonic = e.target.value.trim()
+    if (!mnemonic) {
+      setDerivedAddress('')
+      setAddressError('')
+      return
+    }
+    
+    // 验证助记词格式
+    if (!isValidMnemonic(mnemonic)) {
+      setAddressError(t('accountImport.mnemonicInvalid'))
+      setDerivedAddress('')
+      return
+    }
+    
+    try {
+      const address = getAddressFromMnemonic(mnemonic, 0)
+      setDerivedAddress(address)
+      setAddressError('')
+      
+      // 自动填充钱包地址字段
+      form.setFieldsValue({ walletAddress: address })
+    } catch (error: any) {
+      setAddressError(error.message || t('accountImport.addressErrorMnemonic'))
+      setDerivedAddress('')
+    }
+  }
+  
+  const handleSubmit = async (values: any) => {
+    try {
+      let privateKey: string
+      let walletAddress: string
+      
+      if (importType === 'privateKey') {
+        // 私钥模式
+        privateKey = values.privateKey
+        walletAddress = values.walletAddress
+        
+        // 验证推导的地址和输入的地址是否一致
+        if (derivedAddress && walletAddress !== derivedAddress) {
+          return Promise.reject(new Error(t('accountImport.walletAddressMismatch')))
+        }
+      } else {
+        // 助记词模式
+        if (!values.mnemonic) {
+          return Promise.reject(new Error(t('accountImport.mnemonicRequired')))
+        }
+        
+        // 从助记词导出私钥和地址
+        privateKey = getPrivateKeyFromMnemonic(values.mnemonic, 0)
+        const derivedAddressFromMnemonic = getAddressFromMnemonic(values.mnemonic, 0)
+        
+        // 如果用户手动输入了地址，验证是否与推导的地址一致
+        if (values.walletAddress) {
+          if (values.walletAddress !== derivedAddressFromMnemonic) {
+            // 地址不匹配，使用推导的地址（因为私钥是从助记词导出的，必须使用对应的地址）
+            walletAddress = derivedAddressFromMnemonic
+          } else {
+            // 地址匹配，使用用户输入的地址
+            walletAddress = values.walletAddress
+          }
+        } else {
+          // 如果用户没有输入地址，使用推导的地址
+          walletAddress = derivedAddressFromMnemonic
+        }
+      }
+      
+      // 验证钱包地址格式
+      if (!isValidWalletAddress(walletAddress)) {
+        return Promise.reject(new Error(t('accountImport.walletAddressInvalid')))
+      }
+      
+      await importAccount({
+        privateKey: privateKey,
+        walletAddress: walletAddress,
+        accountName: values.accountName
+      })
+      
+      // 等待store更新
+      await new Promise(resolve => setTimeout(resolve, 100))
+      
+      // 获取新添加的账户ID（通过API获取，因为store可能还没更新）
+      const { apiService } = await import('../services/api')
+      const accountsResponse = await apiService.accounts.list()
+      if (accountsResponse.data.code === 0 && accountsResponse.data.data) {
+        const newAccounts = accountsResponse.data.data.list || []
+        const newAccount = newAccounts.find((acc: any) => acc.walletAddress === walletAddress)
+        if (newAccount && onSuccess) {
+          onSuccess(newAccount.id)
+        } else if (onSuccess) {
+          // 如果找不到账户，仍然调用onSuccess（可能在其他地方处理）
+          onSuccess(0)
+        }
+      } else if (onSuccess) {
+        // API调用失败，仍然调用onSuccess
+        onSuccess(0)
+      }
+      
+      return Promise.resolve()
+    } catch (error: any) {
+      return Promise.reject(error)
+    }
+  }
+  
+  return (
+    <>
+      {showAlert && (
+        <Alert
+          message={t('accountImport.securityTip')}
+          description={t('accountImport.securityTipDesc')}
+          type="warning"
+          showIcon
+          style={{ marginBottom: '24px' }}
+        />
+      )}
+      
+      <Form
+        form={form}
+        layout="vertical"
+        onFinish={handleSubmit}
+        size={isMobile ? 'middle' : 'large'}
+      >
+        <Form.Item label={t('accountImport.importMethod')}>
+          <Radio.Group 
+            value={importType} 
+            onChange={(e) => {
+              setImportType(e.target.value)
+              setDerivedAddress('')
+              setAddressError('')
+              form.setFieldsValue({ walletAddress: '' })
+            }}
+          >
+            <Radio value="privateKey">{t('accountImport.privateKey')}</Radio>
+            <Radio value="mnemonic">{t('accountImport.mnemonic')}</Radio>
+          </Radio.Group>
+        </Form.Item>
+        
+        {importType === 'privateKey' ? (
+          <>
+            <Form.Item
+              label={t('accountImport.privateKeyLabel')}
+              name="privateKey"
+              rules={[
+                { required: true, message: t('accountImport.privateKeyRequired') },
+                {
+                  validator: (_, value) => {
+                    if (!value) return Promise.resolve()
+                    if (!isValidPrivateKey(value)) {
+                      return Promise.reject(new Error(t('accountImport.privateKeyInvalid')))
+                    }
+                    return Promise.resolve()
+                  }
+                }
+              ]}
+              help={addressError || (derivedAddress ? `${t('accountImport.derivedAddress')}: ${derivedAddress}` : '')}
+              validateStatus={addressError ? 'error' : derivedAddress ? 'success' : ''}
+            >
+              <Input.TextArea
+                rows={3}
+                placeholder={t('accountImport.privateKeyPlaceholder')}
+                onChange={handlePrivateKeyChange}
+              />
+            </Form.Item>
+            
+            <Form.Item
+              label={t('accountImport.walletAddress')}
+              name="walletAddress"
+              rules={[
+                { required: true, message: t('accountImport.walletAddressRequired') },
+                {
+                  validator: (_, value) => {
+                    if (!value) return Promise.resolve()
+                    if (!isValidWalletAddress(value)) {
+                      return Promise.reject(new Error(t('accountImport.walletAddressInvalid')))
+                    }
+                    if (derivedAddress && value !== derivedAddress) {
+                      return Promise.reject(new Error(t('accountImport.walletAddressMismatch')))
+                    }
+                    return Promise.resolve()
+                  }
+                }
+              ]}
+            >
+              <Input
+                placeholder={t('accountImport.walletAddressPlaceholder')}
+                readOnly={!!derivedAddress}
+              />
+            </Form.Item>
+          </>
+        ) : (
+          <>
+            <Form.Item
+              label={t('accountImport.mnemonicLabel')}
+              name="mnemonic"
+              rules={[
+                { required: true, message: t('accountImport.mnemonicRequired') },
+                {
+                  validator: (_, value) => {
+                    if (!value) return Promise.resolve()
+                    if (!isValidMnemonic(value)) {
+                      return Promise.reject(new Error(t('accountImport.mnemonicInvalid')))
+                    }
+                    return Promise.resolve()
+                  }
+                }
+              ]}
+              help={addressError || (derivedAddress ? `${t('accountImport.derivedAddress')}: ${derivedAddress}` : '')}
+              validateStatus={addressError ? 'error' : derivedAddress ? 'success' : ''}
+            >
+              <Input.TextArea
+                rows={4}
+                placeholder={t('accountImport.mnemonicPlaceholder')}
+                onChange={handleMnemonicChange}
+              />
+            </Form.Item>
+            
+            <Form.Item
+              label={t('accountImport.walletAddress')}
+              name="walletAddress"
+              rules={[
+                { required: true, message: t('accountImport.walletAddressRequired') },
+                {
+                  validator: (_, value) => {
+                    if (!value) return Promise.resolve()
+                    if (!isValidWalletAddress(value)) {
+                      return Promise.reject(new Error(t('accountImport.walletAddressInvalid')))
+                    }
+                    if (derivedAddress && value !== derivedAddress) {
+                      return Promise.reject(new Error(t('accountImport.walletAddressMismatchMnemonic')))
+                    }
+                    return Promise.resolve()
+                  }
+                }
+              ]}
+            >
+              <Input
+                placeholder={t('accountImport.walletAddressPlaceholder')}
+                readOnly={!!derivedAddress}
+              />
+            </Form.Item>
+          </>
+        )}
+        
+        <Form.Item
+          label={t('accountImport.accountName')}
+          name="accountName"
+        >
+          <Input placeholder={t('accountImport.accountNamePlaceholder')} />
+        </Form.Item>
+        
+        <Form.Item>
+          <Space>
+            <Button
+              type="primary"
+              htmlType="submit"
+              loading={loading}
+              size={isMobile ? 'middle' : 'large'}
+            >
+              {t('accountImport.importAccount')}
+            </Button>
+            {showCancelButton && onCancel && (
+              <Button onClick={onCancel}>
+                {t('common.cancel')}
+              </Button>
+            )}
+          </Space>
+        </Form.Item>
+      </Form>
+    </>
+  )
+}
+
+export default AccountImportForm
+

frontend/src/components/LeaderAddForm.tsx

@@ -0,0 +1,136 @@
+import { useState } from 'react'
+import { Form, Input, Button, Space } from 'antd'
+import { apiService } from '../services/api'
+import { useMediaQuery } from 'react-responsive'
+import { useTranslation } from 'react-i18next'
+import { isValidWalletAddress } from '../utils'
+
+interface LeaderAddFormProps {
+  form: any
+  onSuccess?: (leaderId: number) => void
+  onCancel?: () => void
+  showCancelButton?: boolean
+}
+
+const LeaderAddForm: React.FC<LeaderAddFormProps> = ({
+  form,
+  onSuccess,
+  onCancel,
+  showCancelButton = true
+}) => {
+  const { t } = useTranslation()
+  const isMobile = useMediaQuery({ maxWidth: 768 })
+  const [loading, setLoading] = useState(false)
+  
+  const handleSubmit = async (values: any) => {
+    setLoading(true)
+    try {
+      const response = await apiService.leaders.add({
+        leaderAddress: values.leaderAddress.trim(),
+        leaderName: values.leaderName?.trim() || undefined,
+        remark: values.remark?.trim() || undefined,
+        website: values.website?.trim() || undefined
+      })
+      
+      if (response.data.code === 0) {
+        if (response.data.data && onSuccess) {
+          onSuccess(response.data.data.id)
+        }
+        return Promise.resolve()
+      } else {
+        return Promise.reject(new Error(response.data.msg || t('leaderAdd.addFailed') || '添加 Leader 失败'))
+      }
+    } catch (error: any) {
+      return Promise.reject(error)
+    } finally {
+      setLoading(false)
+    }
+  }
+  
+  return (
+    <Form
+      form={form}
+      layout="vertical"
+      onFinish={handleSubmit}
+      size={isMobile ? 'middle' : 'large'}
+    >
+      <Form.Item
+        label={t('leaderAdd.leaderAddress') || 'Leader 钱包地址'}
+        name="leaderAddress"
+        rules={[
+          { required: true, message: t('leaderAdd.leaderAddressRequired') || '请输入 Leader 钱包地址' },
+          {
+            validator: (_, value) => {
+              if (!value) {
+                return Promise.reject(new Error(t('leaderAdd.leaderAddressRequired') || '请输入 Leader 钱包地址'))
+              }
+              if (!isValidWalletAddress(value.trim())) {
+                return Promise.reject(new Error(t('leaderAdd.leaderAddressInvalid') || '钱包地址格式不正确（必须是 0x 开头的 42 位地址）'))
+              }
+              return Promise.resolve()
+            }
+          }
+        ]}
+        tooltip={t('leaderAdd.leaderAddressTooltip') || '被跟单者的钱包地址，系统将监控该地址的交易并自动跟单'}
+      >
+        <Input placeholder="0x..." style={{ fontFamily: 'monospace' }} />
+      </Form.Item>
+      
+      <Form.Item
+        label={t('leaderAdd.leaderName') || 'Leader 名称'}
+        name="leaderName"
+        tooltip={t('leaderAdd.leaderNameTooltip') || '可选，用于标识 Leader，方便管理'}
+      >
+        <Input placeholder={t('leaderAdd.leaderNamePlaceholder') || '可选，用于标识 Leader'} />
+      </Form.Item>
+      
+      <Form.Item
+        label={t('leaderAdd.remark') || 'Leader 备注'}
+        name="remark"
+        tooltip={t('leaderAdd.remarkTooltip') || '可选，用于记录 Leader 的备注信息'}
+      >
+        <Input.TextArea 
+          placeholder={t('leaderAdd.remarkPlaceholder') || '可选，用于记录 Leader 的备注信息'} 
+          rows={3}
+          maxLength={500}
+          showCount
+        />
+      </Form.Item>
+      
+      <Form.Item
+        label={t('leaderAdd.website') || 'Leader 网站'}
+        name="website"
+        tooltip={t('leaderAdd.websiteTooltip') || '可选，Leader 的网站链接'}
+        rules={[
+          {
+            type: 'url',
+            message: t('leaderAdd.websiteInvalid') || '请输入有效的 URL 地址'
+          }
+        ]}
+      >
+        <Input placeholder={t('leaderAdd.websitePlaceholder') || '可选，例如：https://example.com'} />
+      </Form.Item>
+      
+      <Form.Item>
+        <Space>
+          <Button
+            type="primary"
+            htmlType="submit"
+            loading={loading}
+            size={isMobile ? 'middle' : 'large'}
+          >
+            {t('leaderAdd.add') || '添加 Leader'}
+          </Button>
+          {showCancelButton && onCancel && (
+            <Button onClick={onCancel}>
+              {t('common.cancel')}
+            </Button>
+          )}
+        </Space>
+      </Form.Item>
+    </Form>
+  )
+}
+
+export default LeaderAddForm
+

frontend/src/locales/en/common.json

@@ -65,7 +65,8 @@
     "updateSuccess": "Account updated successfully",
     "updateFailed": "Failed to update account",
     "getDetailFailed": "Failed to get account details",
-    "accountIdRequired": "Account ID cannot be empty"
+    "accountIdRequired": "Account ID cannot be empty",
+    "proxyAddress": "Proxy Wallet Address"
   },
   "message": {
     "success": "Operation successful",
@@ -426,6 +427,7 @@
   },
   "leaderAdd": {
     "title": "Add Leader",
+    "back": "Back",
     "leaderAddress": "Leader Wallet Address",
     "leaderAddressRequired": "Please enter Leader wallet address",
     "leaderAddressInvalid": "Invalid wallet address format (must be a 42-character address starting with 0x)",
@@ -667,6 +669,13 @@
     "priceRangeTooltip": "Only copy orders where Leader's trade price is within the specified range. Leave empty to disable. Examples: Fill 0.11 and 0.89 means only copy orders with price between 0.11 and 0.89; Fill only max price 0.89 means only copy orders with price below 0.89; Fill only min price 0.11 means only copy orders with price above 0.11.",
     "minPricePlaceholder": "Min Price (leave empty for no limit)",
     "maxPricePlaceholder": "Max Price (leave empty for no limit)",
+    "positionLimitFilter": "Max Position Limit",
+    "maxPositionValue": "Max Position Value (USDC)",
+    "maxPositionValueTooltip": "Limit the maximum position value for a single market. If the current position value + copy order amount exceeds this limit, the order will not be placed. Leave empty to disable",
+    "maxPositionValuePlaceholder": "For example: 100 (optional, leave empty to disable)",
+    "maxPositionCount": "Max Position Count",
+    "maxPositionCountTooltip": "Limit the maximum position count for a single market. If the current position count reaches or exceeds this limit, the order will not be placed. Leave empty to disable",
+    "maxPositionCountPlaceholder": "For example: 10 (optional, leave empty to disable)",
     "supportSell": "Support Sell",
     "supportSellTooltip": "Whether to copy Leader's sell orders. Enabled: copy both Leader's buy and sell orders; Disabled: only copy Leader's buy orders, ignore sell orders.",
     "invalidNumber": "Please enter a valid number"
@@ -732,6 +741,13 @@
     "priceRangeTooltip": "Only copy orders where Leader's trade price is within the specified range. Leave empty to disable. Examples: Fill 0.11 and 0.89 means only copy orders with price between 0.11 and 0.89; Fill only max price 0.89 means only copy orders with price below 0.89; Fill only min price 0.11 means only copy orders with price above 0.11.",
     "minPricePlaceholder": "Min Price (leave empty for no limit)",
     "maxPricePlaceholder": "Max Price (leave empty for no limit)",
+    "positionLimitFilter": "Max Position Limit",
+    "maxPositionValue": "Max Position Value (USDC)",
+    "maxPositionValueTooltip": "Limit the maximum position value for a single market. If the current position value + copy order amount exceeds this limit, the order will not be placed. Leave empty to disable",
+    "maxPositionValuePlaceholder": "For example: 100 (optional, leave empty to disable)",
+    "maxPositionCount": "Max Position Count",
+    "maxPositionCountTooltip": "Limit the maximum position count for a single market. If the current position count reaches or exceeds this limit, the order will not be placed. Leave empty to disable",
+    "maxPositionCountPlaceholder": "For example: 10 (optional, leave empty to disable)",
     "configName": "Configuration Name",
     "configNameRequired": "Please enter configuration name",
     "configNamePlaceholder": "e.g., Copy Trading Config 1",
@@ -752,7 +768,11 @@
     "invalidNumber": "Please enter a valid number",
     "fetchLeaderFailed": "Failed to get Leader list",
     "fetchTemplateFailed": "Failed to get template list",
-    "templateName": "Template Name"
+    "templateName": "Template Name",
+    "noAccounts": "No accounts",
+    "importAccount": "Import Account",
+    "noLeaders": "No Leaders",
+    "addLeader": "Add Leader"
   },
   "copyTradingEdit": {
     "title": "Edit Copy Trading Config",
@@ -807,6 +827,13 @@
     "priceRangeTooltip": "Only copy orders where Leader's trade price is within the specified range. Leave empty to disable. Examples: Fill 0.11 and 0.89 means only copy orders with price between 0.11 and 0.89; Fill only max price 0.89 means only copy orders with price below 0.89; Fill only min price 0.11 means only copy orders with price above 0.11.",
     "minPricePlaceholder": "Min Price (leave empty for no limit)",
     "maxPricePlaceholder": "Max Price (leave empty for no limit)",
+    "positionLimitFilter": "Max Position Limit",
+    "maxPositionValue": "Max Position Value (USDC)",
+    "maxPositionValueTooltip": "Limit the maximum position value for a single market. If the current position value + copy order amount exceeds this limit, the order will not be placed. Leave empty to disable",
+    "maxPositionValuePlaceholder": "For example: 100 (optional, leave empty to disable)",
+    "maxPositionCount": "Max Position Count",
+    "maxPositionCountTooltip": "Limit the maximum position count for a single market. If the current position count reaches or exceeds this limit, the order will not be placed. Leave empty to disable",
+    "maxPositionCountPlaceholder": "For example: 10 (optional, leave empty to disable)",
     "configName": "Configuration Name",
     "configNameRequired": "Please enter configuration name",
     "configNamePlaceholder": "e.g., Copy Trading Config 1",
@@ -849,6 +876,8 @@
       "orderbookError": "Orderbook Fetch Failed",
       "orderbookEmpty": "Orderbook Empty",
       "priceRange": "Price Range Mismatch",
+      "maxPositionValue": "Exceeds Max Position Value",
+      "maxPositionCount": "Exceeds Max Position Count",
       "unknown": "Unknown Reason"
     },
     "noData": "No filtered orders"

frontend/src/locales/zh-CN/common.json

@@ -27,7 +27,10 @@
     "total": "共",
     "items": "条",
     "prev": "上一页",
-    "next": "下一页"
+    "next": "下一页",
+    "success": "成功",
+    "failed": "失败",
+    "close": "关闭"
   },
   "login": {
     "title": "登录",
@@ -45,7 +48,13 @@
     "success": "操作成功",
     "error": "操作失败",
     "loading": "加载中...",
-    "noData": "暂无数据"
+    "noData": "暂无数据",
+    "loginSuccess": "登录成功",
+    "loginFailed": "登录失败",
+    "createUserSuccess": "创建用户成功",
+    "createUserFailed": "创建用户失败",
+    "updatePasswordSuccess": "更新密码成功",
+    "updatePasswordFailed": "更新密码失败"
   },
   "order": {
     "create": "创建订单",
@@ -53,7 +62,47 @@
     "cancel": "取消订单",
     "event": "订单事件",
     "buy": "买入",
-    "sell": "卖出"
+    "sell": "卖出",
+    "market": "市场",
+    "status": "状态",
+    "filled": "已成交",
+    "remaining": "剩余"
+  },
+  "account": {
+    "title": "账户管理",
+    "list": "账户列表",
+    "detail": "账户详情",
+    "import": "导入账户",
+    "update": "更新账户",
+    "delete": "删除账户",
+    "accountId": "账户ID",
+    "accountName": "账户名称",
+    "accountNamePlaceholder": "账户名称（可选）",
+    "accountIdRequired": "账户ID不能为空",
+    "walletAddress": "钱包地址",
+    "proxyAddress": "代理钱包地址",
+    "apiCredentials": "API 凭证",
+    "apiKey": "API Key",
+    "apiSecret": "API Secret",
+    "apiPassphrase": "API Passphrase",
+    "balance": "余额",
+    "activeOrders": "活跃订单",
+    "completedOrders": "已完成订单",
+    "positionCount": "持仓数量",
+    "totalOrders": "总订单数",
+    "totalPnl": "总盈亏",
+    "statistics": "交易统计",
+    "fullConfig": "完整配置",
+    "partialConfig": "部分配置",
+    "notConfigured": "未配置",
+    "configured": "已配置",
+    "editTip": "编辑提示",
+    "editTipDesc": "API 凭证字段留空表示不修改。如需更新 API 凭证，请输入新值；如需保持原值不变，请留空。",
+    "leaveEmptyToNotModify": "留空表示不修改",
+    "getDetailFailed": "获取账户详情失败",
+    "updateSuccess": "更新账户成功",
+    "updateFailed": "更新账户失败",
+    "refreshBalance": "刷新余额"
   },
   "accountList": {
     "title": "账户管理",
@@ -156,10 +205,24 @@
     "title": "Leader 管理",
     "leaderName": "Leader 名称",
     "leaderAddress": "钱包地址",
+    "walletAddress": "钱包地址",
     "category": "分类",
+    "all": "全部",
+    "copyTradingCount": "跟单关系数",
+    "createdAt": "创建时间",
+    "action": "操作",
+    "add": "添加",
     "addLeader": "添加 Leader",
+    "edit": "编辑",
     "editLeader": "编辑 Leader",
-    "deleteLeader": "删除 Leader"
+    "delete": "删除",
+    "deleteLeader": "删除 Leader",
+    "listFailed": "获取 Leader 列表失败",
+    "deleteSuccess": "删除 Leader 成功",
+    "deleteFailed": "删除 Leader 失败",
+    "deleteConfirm": "确定要删除这个 Leader 吗？",
+    "deleteConfirmDesc": "删除后无法恢复，请谨慎操作！",
+    "deleteConfirmOk": "确定删除"
   },
   "menu": {
     "accounts": "账户管理",
@@ -218,7 +281,9 @@
     "saveSuccess": "保存配置成功",
     "saveFailed": "保存配置失败",
     "getFailed": "获取代理配置失败",
-    "latency": "延迟"
+    "latency": "延迟",
+    "hostInvalid": "请输入有效的主机地址",
+    "portInvalid": "端口必须在 1-65535 之间"
   },
   "languageSettings": {
     "title": "语言设置",
@@ -362,6 +427,7 @@
   },
   "leaderAdd": {
     "title": "添加 Leader",
+    "back": "返回",
     "leaderAddress": "Leader 钱包地址",
     "leaderAddressRequired": "请输入 Leader 钱包地址",
     "leaderAddressInvalid": "钱包地址格式不正确（必须是 0x 开头的 42 位地址）",
@@ -603,6 +669,13 @@
     "priceRangeTooltip": "仅跟单 Leader 交易价格在指定区间内的订单。不填写表示不限制。示例：填写 0.11 和 0.89 表示仅跟单价格在 0.11 到 0.89 之间的订单；只填写最高价 0.89 表示仅跟单价格在 0.89 以下的订单；只填写最低价 0.11 表示仅跟单价格在 0.11 以上的订单。",
     "minPricePlaceholder": "最低价（留空不限制）",
     "maxPricePlaceholder": "最高价（留空不限制）",
+    "positionLimitFilter": "最大仓位限制",
+    "maxPositionValue": "最大仓位金额 (USDC)",
+    "maxPositionValueTooltip": "限制单个市场的最大仓位金额。如果该市场的当前仓位金额 + 跟单金额超过此限制，则不会下单。不填写则不启用此限制",
+    "maxPositionValuePlaceholder": "例如：100（可选，不填写表示不启用）",
+    "maxPositionCount": "最大仓位数量",
+    "maxPositionCountTooltip": "限制单个市场的最大仓位数量。如果该市场的当前仓位数量达到或超过此限制，则不会下单。不填写则不启用此限制",
+    "maxPositionCountPlaceholder": "例如：10（可选，不填写表示不启用）",
     "supportSell": "跟单卖出",
     "supportSellTooltip": "是否跟单 Leader 的卖出订单。开启：跟单 Leader 的买入和卖出订单；关闭：只跟单 Leader 的买入订单，忽略卖出订单。",
     "invalidNumber": "请输入有效的数字"
@@ -680,6 +753,13 @@
     "priceRangeTooltip": "仅跟单 Leader 交易价格在指定区间内的订单。不填写表示不限制。示例：填写 0.11 和 0.89 表示仅跟单价格在 0.11 到 0.89 之间的订单；只填写最高价 0.89 表示仅跟单价格在 0.89 以下的订单；只填写最低价 0.11 表示仅跟单价格在 0.11 以上的订单。",
     "minPricePlaceholder": "最低价（留空不限制）",
     "maxPricePlaceholder": "最高价（留空不限制）",
+    "positionLimitFilter": "最大仓位限制",
+    "maxPositionValue": "最大仓位金额 (USDC)",
+    "maxPositionValueTooltip": "限制单个市场的最大仓位金额。如果该市场的当前仓位金额 + 跟单金额超过此限制，则不会下单。不填写则不启用此限制",
+    "maxPositionValuePlaceholder": "例如：100（可选，不填写表示不启用）",
+    "maxPositionCount": "最大仓位数量",
+    "maxPositionCountTooltip": "限制单个市场的最大仓位数量。如果该市场的当前仓位数量达到或超过此限制，则不会下单。不填写则不启用此限制",
+    "maxPositionCountPlaceholder": "例如：10（可选，不填写表示不启用）",
     "supportSell": "跟单卖出",
     "supportSellTooltip": "是否跟单 Leader 的卖出订单",
     "create": "创建跟单配置",
@@ -688,7 +768,11 @@
     "invalidNumber": "请输入有效的数字",
     "fetchLeaderFailed": "获取 Leader 列表失败",
     "fetchTemplateFailed": "获取模板列表失败",
-    "templateName": "模板名称"
+    "templateName": "模板名称",
+    "noAccounts": "暂无账户",
+    "importAccount": "导入账户",
+    "noLeaders": "暂无 Leader",
+    "addLeader": "添加 Leader"
   },
   "copyTradingEdit": {
     "title": "编辑跟单配置",
@@ -755,6 +839,13 @@
     "priceRangeTooltip": "仅跟单 Leader 交易价格在指定区间内的订单。不填写表示不限制。示例：填写 0.11 和 0.89 表示仅跟单价格在 0.11 到 0.89 之间的订单；只填写最高价 0.89 表示仅跟单价格在 0.89 以下的订单；只填写最低价 0.11 表示仅跟单价格在 0.11 以上的订单。",
     "minPricePlaceholder": "最低价（留空不限制）",
     "maxPricePlaceholder": "最高价（留空不限制）",
+    "positionLimitFilter": "最大仓位限制",
+    "maxPositionValue": "最大仓位金额 (USDC)",
+    "maxPositionValueTooltip": "限制单个市场的最大仓位金额。如果该市场的当前仓位金额 + 跟单金额超过此限制，则不会下单。不填写则不启用此限制",
+    "maxPositionValuePlaceholder": "例如：100（可选，不填写表示不启用）",
+    "maxPositionCount": "最大仓位数量",
+    "maxPositionCountTooltip": "限制单个市场的最大仓位数量。如果该市场的当前仓位数量达到或超过此限制，则不会下单。不填写则不启用此限制",
+    "maxPositionCountPlaceholder": "例如：10（可选，不填写表示不启用）",
     "supportSell": "跟单卖出",
     "supportSellTooltip": "是否跟单 Leader 的卖出订单",
     "save": "保存",
@@ -785,6 +876,8 @@
       "orderbookError": "订单簿获取失败",
       "orderbookEmpty": "订单簿为空",
       "priceRange": "价格区间不符",
+      "maxPositionValue": "超过最大仓位金额",
+      "maxPositionCount": "超过最大仓位数量",
       "unknown": "未知原因"
     },
     "noData": "暂无已过滤订单"

frontend/src/locales/zh-TW/common.json

@@ -65,7 +65,8 @@
     "updateSuccess": "更新賬戶成功",
     "updateFailed": "更新賬戶失敗",
     "getDetailFailed": "獲取賬戶詳情失敗",
-    "accountIdRequired": "賬戶ID不能為空"
+    "accountIdRequired": "賬戶ID不能為空",
+    "proxyAddress": "代理錢包地址"
   },
   "message": {
     "success": "操作成功",
@@ -426,6 +427,7 @@
   },
   "leaderAdd": {
     "title": "添加 Leader",
+    "back": "返回",
     "leaderAddress": "Leader 錢包地址",
     "leaderAddressRequired": "請輸入 Leader 錢包地址",
     "leaderAddressInvalid": "錢包地址格式不正確（必須是 0x 開頭的 42 位地址）",
@@ -667,6 +669,13 @@
     "priceRangeTooltip": "僅跟單 Leader 交易價格在指定區間內的訂單。不填寫表示不限制。示例：填寫 0.11 和 0.89 表示僅跟單價格在 0.11 到 0.89 之間的訂單；只填寫最高價 0.89 表示僅跟單價格在 0.89 以下的訂單；只填寫最低價 0.11 表示僅跟單價格在 0.11 以上的訂單。",
     "minPricePlaceholder": "最低價（留空不限制）",
     "maxPricePlaceholder": "最高價（留空不限制）",
+    "positionLimitFilter": "最大倉位限制",
+    "maxPositionValue": "最大倉位金額 (USDC)",
+    "maxPositionValueTooltip": "限制單個市場的最大倉位金額。如果該市場的當前倉位金額 + 跟單金額超過此限制，則不會下單。不填寫則不啟用此限制",
+    "maxPositionValuePlaceholder": "例如：100（可選，不填寫表示不啟用）",
+    "maxPositionCount": "最大倉位數量",
+    "maxPositionCountTooltip": "限制單個市場的最大倉位數量。如果該市場的當前倉位數量達到或超過此限制，則不會下單。不填寫則不啟用此限制",
+    "maxPositionCountPlaceholder": "例如：10（可選，不填寫表示不啟用）",
     "supportSell": "跟單賣出",
     "supportSellTooltip": "是否跟單 Leader 的賣出訂單。開啟：跟單 Leader 的買入和賣出訂單；關閉：只跟單 Leader 的買入訂單，忽略賣出訂單。",
     "invalidNumber": "請輸入有效的數字"
@@ -732,6 +741,13 @@
     "priceRangeTooltip": "僅跟單 Leader 交易價格在指定區間內的訂單。不填寫表示不限制。示例：填寫 0.11 和 0.89 表示僅跟單價格在 0.11 到 0.89 之間的訂單；只填寫最高價 0.89 表示僅跟單價格在 0.89 以下的訂單；只填寫最低價 0.11 表示僅跟單價格在 0.11 以上的訂單。",
     "minPricePlaceholder": "最低價（留空不限制）",
     "maxPricePlaceholder": "最高價（留空不限制）",
+    "positionLimitFilter": "最大倉位限制",
+    "maxPositionValue": "最大倉位金額 (USDC)",
+    "maxPositionValueTooltip": "限制單個市場的最大倉位金額。如果該市場的當前倉位金額 + 跟單金額超過此限制，則不會下單。不填寫則不啟用此限制",
+    "maxPositionValuePlaceholder": "例如：100（可選，不填寫表示不啟用）",
+    "maxPositionCount": "最大倉位數量",
+    "maxPositionCountTooltip": "限制單個市場的最大倉位數量。如果該市場的當前倉位數量達到或超過此限制，則不會下單。不填寫則不啟用此限制",
+    "maxPositionCountPlaceholder": "例如：10（可選，不填寫表示不啟用）",
     "configName": "配置名",
     "configNameRequired": "請輸入配置名",
     "configNamePlaceholder": "例如：跟單配置1",
@@ -752,7 +768,11 @@
     "invalidNumber": "請輸入有效的數字",
     "fetchLeaderFailed": "獲取 Leader 列表失敗",
     "fetchTemplateFailed": "獲取模板列表失敗",
-    "templateName": "模板名稱"
+    "templateName": "模板名稱",
+    "noAccounts": "暫無賬戶",
+    "importAccount": "導入賬戶",
+    "noLeaders": "暫無 Leader",
+    "addLeader": "添加 Leader"
   },
   "copyTradingEdit": {
     "title": "編輯跟單配置",
@@ -807,6 +827,13 @@
     "priceRangeTooltip": "僅跟單 Leader 交易價格在指定區間內的訂單。不填寫表示不限制。示例：填寫 0.11 和 0.89 表示僅跟單價格在 0.11 到 0.89 之間的訂單；只填寫最高價 0.89 表示僅跟單價格在 0.89 以下的訂單；只填寫最低價 0.11 表示僅跟單價格在 0.11 以上的訂單。",
     "minPricePlaceholder": "最低價（留空不限制）",
     "maxPricePlaceholder": "最高價（留空不限制）",
+    "positionLimitFilter": "最大倉位限制",
+    "maxPositionValue": "最大倉位金額 (USDC)",
+    "maxPositionValueTooltip": "限制單個市場的最大倉位金額。如果該市場的當前倉位金額 + 跟單金額超過此限制，則不會下單。不填寫則不啟用此限制",
+    "maxPositionValuePlaceholder": "例如：100（可選，不填寫表示不啟用）",
+    "maxPositionCount": "最大倉位數量",
+    "maxPositionCountTooltip": "限制單個市場的最大倉位數量。如果該市場的當前倉位數量達到或超過此限制，則不會下單。不填寫則不啟用此限制",
+    "maxPositionCountPlaceholder": "例如：10（可選，不填寫表示不啟用）",
     "configName": "配置名",
     "configNameRequired": "請輸入配置名",
     "configNamePlaceholder": "例如：跟單配置1",
@@ -849,6 +876,8 @@
       "orderbookError": "訂單簿獲取失敗",
       "orderbookEmpty": "訂單簿為空",
       "priceRange": "價格區間不符",
+      "maxPositionValue": "超過最大倉位金額",
+      "maxPositionCount": "超過最大倉位數量",
       "unknown": "未知原因"
     },
     "noData": "暫無已過濾訂單"

frontend/src/pages/AccountImport.tsx

@@ -1,150 +1,20 @@
-import { useState } from 'react'
 import { useNavigate } from 'react-router-dom'
-import { Card, Form, Input, Button, message, Typography, Radio, Space, Alert } from 'antd'
+import { Card, Form, Button, Typography } from 'antd'
 import { ArrowLeftOutlined } from '@ant-design/icons'
 import { useTranslation } from 'react-i18next'
-import { useAccountStore } from '../store/accountStore'
-import { 
-  getAddressFromPrivateKey, 
-  getAddressFromMnemonic,
-  getPrivateKeyFromMnemonic,
-  isValidWalletAddress, 
-  isValidPrivateKey,
-  isValidMnemonic
-} from '../utils'
-import { useMediaQuery } from 'react-responsive'
+import { message } from 'antd'
+import AccountImportForm from '../components/AccountImportForm'
 
 const { Title } = Typography
 
-type ImportType = 'privateKey' | 'mnemonic'
-
 const AccountImport: React.FC = () => {
   const { t } = useTranslation()
   const navigate = useNavigate()
-  const isMobile = useMediaQuery({ maxWidth: 768 })
-  const { importAccount, loading } = useAccountStore()
   const [form] = Form.useForm()
-  const [importType, setImportType] = useState<ImportType>('privateKey')
-  const [derivedAddress, setDerivedAddress] = useState<string>('')
-  const [addressError, setAddressError] = useState<string>('')
   
-  // 当私钥输入时，自动推导地址
-  const handlePrivateKeyChange = (e: React.ChangeEvent<HTMLTextAreaElement>) => {
-    const privateKey = e.target.value.trim()
-    if (!privateKey) {
-      setDerivedAddress('')
-      setAddressError('')
-      return
-    }
-    
-    // 验证私钥格式
-    if (!isValidPrivateKey(privateKey)) {
-      setAddressError(t('accountImport.privateKeyInvalid'))
-      setDerivedAddress('')
-      return
-    }
-    
-    try {
-      const address = getAddressFromPrivateKey(privateKey)
-      setDerivedAddress(address)
-      setAddressError('')
-      
-      // 自动填充钱包地址字段
-      form.setFieldsValue({ walletAddress: address })
-    } catch (error: any) {
-      setAddressError(error.message || t('accountImport.addressError'))
-      setDerivedAddress('')
-    }
-  }
-  
-  // 当助记词输入时，自动推导地址
-  const handleMnemonicChange = (e: React.ChangeEvent<HTMLTextAreaElement>) => {
-    const mnemonic = e.target.value.trim()
-    if (!mnemonic) {
-      setDerivedAddress('')
-      setAddressError('')
-      return
-    }
-    
-    // 验证助记词格式
-    if (!isValidMnemonic(mnemonic)) {
-      setAddressError(t('accountImport.mnemonicInvalid'))
-      setDerivedAddress('')
-      return
-    }
-    
-    try {
-      const address = getAddressFromMnemonic(mnemonic, 0)
-      setDerivedAddress(address)
-      setAddressError('')
-      
-      // 自动填充钱包地址字段
-      form.setFieldsValue({ walletAddress: address })
-    } catch (error: any) {
-      setAddressError(error.message || t('accountImport.addressErrorMnemonic'))
-      setDerivedAddress('')
-    }
-  }
-  
-  const handleSubmit = async (values: any) => {
-    try {
-      let privateKey: string
-      let walletAddress: string
-      
-      if (importType === 'privateKey') {
-        // 私钥模式
-        privateKey = values.privateKey
-        walletAddress = values.walletAddress
-        
-        // 验证推导的地址和输入的地址是否一致
-        if (derivedAddress && walletAddress !== derivedAddress) {
-          message.error(t('accountImport.walletAddressMismatch'))
-          return
-        }
-      } else {
-        // 助记词模式
-        if (!values.mnemonic) {
-          message.error(t('accountImport.mnemonicRequired'))
-          return
-        }
-        
-        // 从助记词导出私钥和地址
-        privateKey = getPrivateKeyFromMnemonic(values.mnemonic, 0)
-        const derivedAddressFromMnemonic = getAddressFromMnemonic(values.mnemonic, 0)
-        
-        // 如果用户手动输入了地址，验证是否与推导的地址一致
-        if (values.walletAddress) {
-          if (values.walletAddress !== derivedAddressFromMnemonic) {
-            // 地址不匹配，使用推导的地址（因为私钥是从助记词导出的，必须使用对应的地址）
-            message.warning(`${t('accountImport.walletAddressMismatchMnemonic')}: ${derivedAddressFromMnemonic}`)
-            walletAddress = derivedAddressFromMnemonic
-          } else {
-            // 地址匹配，使用用户输入的地址
-            walletAddress = values.walletAddress
-          }
-        } else {
-          // 如果用户没有输入地址，使用推导的地址
-          walletAddress = derivedAddressFromMnemonic
-        }
-      }
-      
-      // 验证钱包地址格式
-      if (!isValidWalletAddress(walletAddress)) {
-        message.error(t('accountImport.walletAddressInvalid'))
-        return
-      }
-      
-      await importAccount({
-        privateKey: privateKey,
-        walletAddress: walletAddress,
-        accountName: values.accountName
-      })
-      
-      message.success(t('accountImport.importSuccess'))
-      navigate('/accounts')
-    } catch (error: any) {
-      message.error(error.message || t('accountImport.importFailed'))
-    }
+  const handleSuccess = async (accountId?: number) => {
+    message.success(t('accountImport.importSuccess'))
+    navigate('/accounts')
   }
   
   return (
@@ -161,165 +31,13 @@ const AccountImport: React.FC = () => {
       </div>
       
       <Card>
-        <Alert
-          message={t('accountImport.securityTip')}
-          description={t('accountImport.securityTipDesc')}
-          type="warning"
-          showIcon
-          style={{ marginBottom: '24px' }}
-        />
-        
-        <Form
+        <AccountImportForm
           form={form}
-          layout="vertical"
-          onFinish={handleSubmit}
-          size={isMobile ? 'middle' : 'large'}
-        >
-          <Form.Item label={t('accountImport.importMethod')}>
-            <Radio.Group 
-              value={importType} 
-              onChange={(e) => {
-                setImportType(e.target.value)
-                setDerivedAddress('')
-                setAddressError('')
-                form.setFieldsValue({ walletAddress: '' })
-              }}
-            >
-              <Radio value="privateKey">{t('accountImport.privateKey')}</Radio>
-              <Radio value="mnemonic">{t('accountImport.mnemonic')}</Radio>
-            </Radio.Group>
-          </Form.Item>
-          
-          {importType === 'privateKey' ? (
-            <>
-              <Form.Item
-                label={t('accountImport.privateKeyLabel')}
-                name="privateKey"
-                rules={[
-                  { required: true, message: t('accountImport.privateKeyRequired') },
-                  {
-                    validator: (_, value) => {
-                      if (!value) return Promise.resolve()
-                      if (!isValidPrivateKey(value)) {
-                        return Promise.reject(new Error(t('accountImport.privateKeyInvalid')))
-                      }
-                      return Promise.resolve()
-                    }
-                  }
-                ]}
-                help={addressError || (derivedAddress ? `${t('accountImport.derivedAddress')}: ${derivedAddress}` : '')}
-                validateStatus={addressError ? 'error' : derivedAddress ? 'success' : ''}
-              >
-                <Input.TextArea
-                  rows={3}
-                  placeholder={t('accountImport.privateKeyPlaceholder')}
-                  onChange={handlePrivateKeyChange}
-                />
-              </Form.Item>
-              
-              <Form.Item
-                label={t('accountImport.walletAddress')}
-                name="walletAddress"
-                rules={[
-                  { required: true, message: t('accountImport.walletAddressRequired') },
-                  {
-                    validator: (_, value) => {
-                      if (!value) return Promise.resolve()
-                      if (!isValidWalletAddress(value)) {
-                        return Promise.reject(new Error(t('accountImport.walletAddressInvalid')))
-                      }
-                      if (derivedAddress && value !== derivedAddress) {
-                        return Promise.reject(new Error(t('accountImport.walletAddressMismatch')))
-                      }
-                      return Promise.resolve()
-                    }
-                  }
-                ]}
-              >
-                <Input
-                  placeholder={t('accountImport.walletAddressPlaceholder')}
-                  readOnly={!!derivedAddress}
-                />
-              </Form.Item>
-            </>
-          ) : (
-            <>
-              <Form.Item
-                label={t('accountImport.mnemonicLabel')}
-                name="mnemonic"
-                rules={[
-                  { required: true, message: t('accountImport.mnemonicRequired') },
-                  {
-                    validator: (_, value) => {
-                      if (!value) return Promise.resolve()
-                      if (!isValidMnemonic(value)) {
-                        return Promise.reject(new Error(t('accountImport.mnemonicInvalid')))
-                      }
-                      return Promise.resolve()
-                    }
-                  }
-                ]}
-                help={addressError || (derivedAddress ? `${t('accountImport.derivedAddress')}: ${derivedAddress}` : '')}
-                validateStatus={addressError ? 'error' : derivedAddress ? 'success' : ''}
-              >
-                <Input.TextArea
-                  rows={4}
-                  placeholder={t('accountImport.mnemonicPlaceholder')}
-                  onChange={handleMnemonicChange}
-                />
-              </Form.Item>
-              
-              <Form.Item
-                label={t('accountImport.walletAddress')}
-                name="walletAddress"
-                rules={[
-                  { required: true, message: t('accountImport.walletAddressRequired') },
-                  {
-                    validator: (_, value) => {
-                      if (!value) return Promise.resolve()
-                      if (!isValidWalletAddress(value)) {
-                        return Promise.reject(new Error(t('accountImport.walletAddressInvalid')))
-                      }
-                      if (derivedAddress && value !== derivedAddress) {
-                        return Promise.reject(new Error(t('accountImport.walletAddressMismatchMnemonic')))
-                      }
-                      return Promise.resolve()
-                    }
-                  }
-                ]}
-              >
-                <Input
-                  placeholder={t('accountImport.walletAddressPlaceholder')}
-                  readOnly={!!derivedAddress}
-                />
-              </Form.Item>
-            </>
-          )}
-          
-          <Form.Item
-            label={t('accountImport.accountName')}
-            name="accountName"
-          >
-            <Input placeholder={t('accountImport.accountNamePlaceholder')} />
-          </Form.Item>
-          
-          
-          <Form.Item>
-            <Space>
-              <Button
-                type="primary"
-                htmlType="submit"
-                loading={loading}
-                size={isMobile ? 'middle' : 'large'}
-              >
-                {t('accountImport.importAccount')}
-              </Button>
-              <Button onClick={() => navigate('/accounts')}>
-                {t('common.cancel')}
-              </Button>
-            </Space>
-          </Form.Item>
-        </Form>
+          onSuccess={handleSuccess}
+          onCancel={() => navigate('/accounts')}
+          showAlert={true}
+          showCancelButton={true}
+        />
       </Card>
     </div>
   )

frontend/src/pages/CopyTradingAdd.tsx

@@ -1,12 +1,15 @@
 import { useEffect, useState } from 'react'
 import { useNavigate } from 'react-router-dom'
 import { Card, Form, Button, Switch, message, Typography, Space, Radio, InputNumber, Modal, Table, Select, Divider, Input } from 'antd'
-import { ArrowLeftOutlined, SaveOutlined, FileTextOutlined } from '@ant-design/icons'
+import { ArrowLeftOutlined, SaveOutlined, FileTextOutlined, PlusOutlined } from '@ant-design/icons'
 import { apiService } from '../services/api'
 import { useAccountStore } from '../store/accountStore'
 import type { Leader, CopyTradingTemplate, CopyTradingCreateRequest } from '../types'
 import { formatUSDC } from '../utils'
 import { useTranslation } from 'react-i18next'
+import { useMediaQuery } from 'react-responsive'
+import AccountImportForm from '../components/AccountImportForm'
+import LeaderAddForm from '../components/LeaderAddForm'
 
 const { Title } = Typography
 const { Option } = Select
@@ -14,6 +17,7 @@ const { Option } = Select
 const CopyTradingAdd: React.FC = () => {
   const { t } = useTranslation()
   const navigate = useNavigate()
+  const isMobile = useMediaQuery({ maxWidth: 768 })
   const { accounts, fetchAccounts } = useAccountStore()
   const [form] = Form.useForm()
   const [loading, setLoading] = useState(false)
@@ -22,6 +26,14 @@ const CopyTradingAdd: React.FC = () => {
   const [templateModalVisible, setTemplateModalVisible] = useState(false)
   const [copyMode, setCopyMode] = useState<'RATIO' | 'FIXED'>('RATIO')
   
+  // 导入账户modal相关状态
+  const [accountImportModalVisible, setAccountImportModalVisible] = useState(false)
+  const [accountImportForm] = Form.useForm()
+  
+  // 添加leader modal相关状态
+  const [leaderAddModalVisible, setLeaderAddModalVisible] = useState(false)
+  const [leaderAddForm] = Form.useForm()
+  
   // 生成默认配置名
   const generateDefaultConfigName = (): string => {
     const now = new Date()
@@ -85,7 +97,9 @@ const CopyTradingAdd: React.FC = () => {
       minOrderDepth: template.minOrderDepth ? parseFloat(template.minOrderDepth) : undefined,
       maxSpread: template.maxSpread ? parseFloat(template.maxSpread) : undefined,
       minPrice: template.minPrice ? parseFloat(template.minPrice) : undefined,
-      maxPrice: template.maxPrice ? parseFloat(template.maxPrice) : undefined
+      maxPrice: template.maxPrice ? parseFloat(template.maxPrice) : undefined,
+      maxPositionValue: (template as any).maxPositionValue ? parseFloat((template as any).maxPositionValue) : undefined,
+      maxPositionCount: (template as any).maxPositionCount
     })
     setCopyMode(template.copyMode)
     setTemplateModalVisible(false)
@@ -96,6 +110,36 @@ const CopyTradingAdd: React.FC = () => {
     setCopyMode(mode)
   }
   
+  // 处理导入账户成功
+  const handleAccountImportSuccess = async (accountId: number) => {
+    message.success(t('accountImport.importSuccess'))
+    
+    // 刷新账户列表
+    await fetchAccounts()
+    
+    // 自动选择新添加的账户
+    form.setFieldsValue({ accountId })
+    
+    // 关闭modal并重置表单
+    setAccountImportModalVisible(false)
+    accountImportForm.resetFields()
+  }
+  
+  // 处理添加leader成功
+  const handleLeaderAddSuccess = async (leaderId: number) => {
+    message.success(t('leaderAdd.addSuccess') || '添加 Leader 成功')
+    
+    // 刷新leader列表
+    await fetchLeaders()
+    
+    // 自动选择新添加的leader
+    form.setFieldsValue({ leaderId })
+    
+    // 关闭modal并重置表单
+    setLeaderAddModalVisible(false)
+    leaderAddForm.resetFields()
+  }
+  
   const handleSubmit = async (values: any) => {
     // 前端校验
     if (values.copyMode === 'FIXED') {
@@ -134,6 +178,8 @@ const CopyTradingAdd: React.FC = () => {
         maxSpread: values.maxSpread?.toString(),
         minPrice: values.minPrice?.toString(),
         maxPrice: values.maxPrice?.toString(),
+        maxPositionValue: values.maxPositionValue?.toString(),
+        maxPositionCount: values.maxPositionCount,
         configName: values.configName?.trim(),
         pushFailedOrders: values.pushFailedOrders ?? false
       }
@@ -209,7 +255,24 @@ const CopyTradingAdd: React.FC = () => {
             name="accountId"
             rules={[{ required: true, message: t('copyTradingAdd.walletRequired') || '请选择钱包' }]}
           >
-            <Select placeholder={t('copyTradingAdd.selectWalletPlaceholder') || '请选择钱包'}>
+            <Select 
+              placeholder={t('copyTradingAdd.selectWalletPlaceholder') || '请选择钱包'}
+              notFoundContent={
+                accounts.length === 0 ? (
+                  <div style={{ textAlign: 'center', padding: '12px' }}>
+                    <div style={{ marginBottom: '8px' }}>{t('copyTradingAdd.noAccounts') || '暂无账户'}</div>
+                    <Button 
+                      type="primary" 
+                      icon={<PlusOutlined />}
+                      onClick={() => setAccountImportModalVisible(true)}
+                      size="small"
+                    >
+                      {t('copyTradingAdd.importAccount') || '导入账户'}
+                    </Button>
+                  </div>
+                ) : null
+              }
+            >
               {accounts.map(account => (
                 <Option key={account.id} value={account.id}>
                   {account.accountName || `账户 ${account.id}`} ({account.walletAddress.slice(0, 6)}...{account.walletAddress.slice(-4)})
@@ -223,7 +286,24 @@ const CopyTradingAdd: React.FC = () => {
             name="leaderId"
             rules={[{ required: true, message: t('copyTradingAdd.leaderRequired') || '请选择 Leader' }]}
           >
-            <Select placeholder={t('copyTradingAdd.selectLeaderPlaceholder') || '请选择 Leader'}>
+            <Select 
+              placeholder={t('copyTradingAdd.selectLeaderPlaceholder') || '请选择 Leader'}
+              notFoundContent={
+                leaders.length === 0 ? (
+                  <div style={{ textAlign: 'center', padding: '12px' }}>
+                    <div style={{ marginBottom: '8px' }}>{t('copyTradingAdd.noLeaders') || '暂无 Leader'}</div>
+                    <Button 
+                      type="primary" 
+                      icon={<PlusOutlined />}
+                      onClick={() => setLeaderAddModalVisible(true)}
+                      size="small"
+                    >
+                      {t('copyTradingAdd.addLeader') || '添加 Leader'}
+                    </Button>
+                  </div>
+                ) : null
+              }
+            >
               {leaders.map(leader => (
                 <Option key={leader.id} value={leader.id}>
                   {leader.leaderName || `Leader ${leader.id}`} ({leader.leaderAddress.slice(0, 6)}...{leader.leaderAddress.slice(-4)})
@@ -467,6 +547,35 @@ const CopyTradingAdd: React.FC = () => {
             </Input.Group>
           </Form.Item>
           
+          <Divider>{t('copyTradingAdd.positionLimitFilter') || '最大仓位限制'}</Divider>
+          
+          <Form.Item
+            label={t('copyTradingAdd.maxPositionValue') || '最大仓位金额 (USDC)'}
+            name="maxPositionValue"
+            tooltip={t('copyTradingAdd.maxPositionValueTooltip') || '限制单个市场的最大仓位金额。如果该市场的当前仓位金额 + 跟单金额超过此限制，则不会下单。不填写则不启用此限制'}
+          >
+            <InputNumber
+              min={0}
+              step={0.0001}
+              precision={4}
+              style={{ width: '100%' }}
+              placeholder={t('copyTradingAdd.maxPositionValuePlaceholder') || '例如：100（可选，不填写表示不启用）'}
+            />
+          </Form.Item>
+          
+          <Form.Item
+            label={t('copyTradingAdd.maxPositionCount') || '最大仓位数量'}
+            name="maxPositionCount"
+            tooltip={t('copyTradingAdd.maxPositionCountTooltip') || '限制单个市场的最大仓位数量。如果该市场的当前仓位数量达到或超过此限制，则不会下单。不填写则不启用此限制'}
+          >
+            <InputNumber
+              min={1}
+              step={1}
+              style={{ width: '100%' }}
+              placeholder={t('copyTradingAdd.maxPositionCountPlaceholder') || '例如：10（可选，不填写表示不启用）'}
+            />
+          </Form.Item>
+          
           <Divider>{t('copyTradingAdd.advancedSettings') || '高级设置'}</Divider>
           
           {/* 跟单卖出 */}
@@ -550,6 +659,61 @@ const CopyTradingAdd: React.FC = () => {
           ]}
         />
       </Modal>
+      
+      {/* 导入账户 Modal */}
+      <Modal
+        title={t('accountImport.title') || '导入账户'}
+        open={accountImportModalVisible}
+        onCancel={() => {
+          setAccountImportModalVisible(false)
+          accountImportForm.resetFields()
+        }}
+        footer={null}
+        width={isMobile ? '95%' : 600}
+        style={{ top: isMobile ? 20 : 50 }}
+        bodyStyle={{ padding: '24px', maxHeight: 'calc(100vh - 150px)', overflow: 'auto' }}
+        destroyOnClose
+        maskClosable
+        closable
+      >
+        <AccountImportForm
+          form={accountImportForm}
+          onSuccess={handleAccountImportSuccess}
+          onCancel={() => {
+            setAccountImportModalVisible(false)
+            accountImportForm.resetFields()
+          }}
+          showAlert={true}
+          showCancelButton={true}
+        />
+      </Modal>
+      
+      {/* 添加 Leader Modal */}
+      <Modal
+        title={t('leaderAdd.title') || '添加 Leader'}
+        open={leaderAddModalVisible}
+        onCancel={() => {
+          setLeaderAddModalVisible(false)
+          leaderAddForm.resetFields()
+        }}
+        footer={null}
+        width={isMobile ? '95%' : 600}
+        style={{ top: isMobile ? 20 : 50 }}
+        bodyStyle={{ padding: '24px', maxHeight: 'calc(100vh - 150px)', overflow: 'auto' }}
+        destroyOnClose
+        maskClosable
+        closable
+      >
+        <LeaderAddForm
+          form={leaderAddForm}
+          onSuccess={handleLeaderAddSuccess}
+          onCancel={() => {
+            setLeaderAddModalVisible(false)
+            leaderAddForm.resetFields()
+          }}
+          showCancelButton={true}
+        />
+      </Modal>
     </div>
   )
 }

frontend/src/pages/CopyTradingEdit.tsx

@@ -58,6 +58,8 @@ const CopyTradingEdit: React.FC = () => {
             maxSpread: found.maxSpread ? parseFloat(found.maxSpread) : undefined,
             minPrice: found.minPrice ? parseFloat(found.minPrice) : undefined,
             maxPrice: found.maxPrice ? parseFloat(found.maxPrice) : undefined,
+            maxPositionValue: found.maxPositionValue ? parseFloat(found.maxPositionValue) : undefined,
+            maxPositionCount: found.maxPositionCount,
             configName: found.configName || '',
             pushFailedOrders: found.pushFailedOrders ?? false
           })
@@ -123,6 +125,8 @@ const CopyTradingEdit: React.FC = () => {
         maxSpread: values.maxSpread?.toString(),
         minPrice: values.minPrice?.toString(),
         maxPrice: values.maxPrice?.toString(),
+        maxPositionValue: values.maxPositionValue?.toString(),
+        maxPositionCount: values.maxPositionCount,
         configName: values.configName?.trim() || undefined,
         pushFailedOrders: values.pushFailedOrders
       }
@@ -436,6 +440,35 @@ const CopyTradingEdit: React.FC = () => {
             </Input.Group>
           </Form.Item>
           
+          <Divider>{t('copyTradingEdit.positionLimitFilter') || '最大仓位限制'}</Divider>
+          
+          <Form.Item
+            label={t('copyTradingEdit.maxPositionValue') || '最大仓位金额 (USDC)'}
+            name="maxPositionValue"
+            tooltip={t('copyTradingEdit.maxPositionValueTooltip') || '限制单个市场的最大仓位金额。如果该市场的当前仓位金额 + 跟单金额超过此限制，则不会下单。不填写则不启用此限制'}
+          >
+            <InputNumber
+              min={0}
+              step={0.0001}
+              precision={4}
+              style={{ width: '100%' }}
+              placeholder={t('copyTradingEdit.maxPositionValuePlaceholder') || '例如：100（可选，不填写表示不启用）'}
+            />
+          </Form.Item>
+          
+          <Form.Item
+            label={t('copyTradingEdit.maxPositionCount') || '最大仓位数量'}
+            name="maxPositionCount"
+            tooltip={t('copyTradingEdit.maxPositionCountTooltip') || '限制单个市场的最大仓位数量。如果该市场的当前仓位数量达到或超过此限制，则不会下单。不填写则不启用此限制'}
+          >
+            <InputNumber
+              min={1}
+              step={1}
+              style={{ width: '100%' }}
+              placeholder={t('copyTradingEdit.maxPositionCountPlaceholder') || '例如：10（可选，不填写表示不启用）'}
+            />
+          </Form.Item>
+          
           <Divider>{t('copyTradingEdit.advancedSettings') || '高级设置'}</Divider>
           
           {/* 跟单卖出 */}

frontend/src/pages/CopyTradingOrders/EditModal.tsx

@@ -65,6 +65,8 @@ const EditModal: React.FC<EditModalProps> = ({
             maxSpread: found.maxSpread ? parseFloat(found.maxSpread) : undefined,
             minPrice: found.minPrice ? parseFloat(found.minPrice) : undefined,
             maxPrice: found.maxPrice ? parseFloat(found.maxPrice) : undefined,
+            maxPositionValue: found.maxPositionValue ? parseFloat(found.maxPositionValue) : undefined,
+            maxPositionCount: found.maxPositionCount,
             configName: found.configName || '',
             pushFailedOrders: found.pushFailedOrders ?? false
           })
@@ -129,6 +131,8 @@ const EditModal: React.FC<EditModalProps> = ({
         maxSpread: values.maxSpread?.toString(),
         minPrice: values.minPrice?.toString(),
         maxPrice: values.maxPrice?.toString(),
+        maxPositionValue: values.maxPositionValue?.toString(),
+        maxPositionCount: values.maxPositionCount,
         configName: values.configName?.trim() || undefined,
         pushFailedOrders: values.pushFailedOrders
       }
@@ -436,6 +440,35 @@ const EditModal: React.FC<EditModalProps> = ({
             </Input.Group>
           </Form.Item>
           
+          <Divider>{t('copyTradingEdit.positionLimitFilter') || '最大仓位限制'}</Divider>
+          
+          <Form.Item
+            label={t('copyTradingEdit.maxPositionValue') || '最大仓位金额 (USDC)'}
+            name="maxPositionValue"
+            tooltip={t('copyTradingEdit.maxPositionValueTooltip') || '限制单个市场的最大仓位金额。如果该市场的当前仓位金额 + 跟单金额超过此限制，则不会下单。不填写则不启用此限制'}
+          >
+            <InputNumber
+              min={0}
+              step={0.0001}
+              precision={4}
+              style={{ width: '100%' }}
+              placeholder={t('copyTradingEdit.maxPositionValuePlaceholder') || '例如：100（可选，不填写表示不启用）'}
+            />
+          </Form.Item>
+          
+          <Form.Item
+            label={t('copyTradingEdit.maxPositionCount') || '最大仓位数量'}
+            name="maxPositionCount"
+            tooltip={t('copyTradingEdit.maxPositionCountTooltip') || '限制单个市场的最大仓位数量。如果该市场的当前仓位数量达到或超过此限制，则不会下单。不填写则不启用此限制'}
+          >
+            <InputNumber
+              min={1}
+              step={1}
+              style={{ width: '100%' }}
+              placeholder={t('copyTradingEdit.maxPositionCountPlaceholder') || '例如：10（可选，不填写表示不启用）'}
+            />
+          </Form.Item>
+          
           <Divider>{t('copyTradingEdit.advancedSettings') || '高级设置'}</Divider>
           
           <Form.Item

frontend/src/pages/LeaderAdd.tsx

@@ -1,42 +1,20 @@
-import { useState } from 'react'
 import { useNavigate } from 'react-router-dom'
-import { Card, Form, Input, Button, message, Typography, Space } from 'antd'
+import { Card, Form, Button, Typography } from 'antd'
 import { ArrowLeftOutlined } from '@ant-design/icons'
-import { apiService } from '../services/api'
-import { useMediaQuery } from 'react-responsive'
 import { useTranslation } from 'react-i18next'
-import { isValidWalletAddress } from '../utils'
+import { message } from 'antd'
+import LeaderAddForm from '../components/LeaderAddForm'
 
 const { Title } = Typography
 
 const LeaderAdd: React.FC = () => {
   const { t } = useTranslation()
   const navigate = useNavigate()
-  const isMobile = useMediaQuery({ maxWidth: 768 })
   const [form] = Form.useForm()
-  const [loading, setLoading] = useState(false)
   
-  const handleSubmit = async (values: any) => {
-    setLoading(true)
-    try {
-      const response = await apiService.leaders.add({
-        leaderAddress: values.leaderAddress.trim(),
-        leaderName: values.leaderName?.trim() || undefined,
-        remark: values.remark?.trim() || undefined,
-        website: values.website?.trim() || undefined
-      })
-      
-      if (response.data.code === 0) {
-        message.success(t('leaderAdd.addSuccess') || '添加 Leader 成功')
-        navigate('/leaders')
-      } else {
-        message.error(response.data.msg || t('leaderAdd.addFailed') || '添加 Leader 失败')
-      }
-    } catch (error: any) {
-      message.error(error.message || t('leaderAdd.addFailed') || '添加 Leader 失败')
-    } finally {
-      setLoading(false)
-    }
+  const handleSuccess = async () => {
+    message.success(t('leaderAdd.addSuccess') || '添加 Leader 成功')
+    navigate('/leaders')
   }
   
   return (
@@ -47,94 +25,18 @@ const LeaderAdd: React.FC = () => {
           onClick={() => navigate('/leaders')}
           style={{ marginBottom: '16px' }}
         >
-          返回
+          {t('leaderAdd.back') || '返回'}
         </Button>
         <Title level={2} style={{ margin: 0 }}>{t('leaderAdd.title') || '添加 Leader'}</Title>
       </div>
       
       <Card>
-        <Form
+        <LeaderAddForm
           form={form}
-          layout="vertical"
-          onFinish={handleSubmit}
-          size={isMobile ? 'middle' : 'large'}
-          initialValues={{
-            enabled: true
-          }}
-        >
-          <Form.Item
-            label={t('leaderAdd.leaderAddress') || 'Leader 钱包地址'}
-            name="leaderAddress"
-            rules={[
-              { required: true, message: t('leaderAdd.leaderAddressRequired') || '请输入 Leader 钱包地址' },
-              {
-                validator: (_, value) => {
-                  if (!value) {
-                    return Promise.reject(new Error(t('leaderAdd.leaderAddressRequired') || '请输入 Leader 钱包地址'))
-                  }
-                  if (!isValidWalletAddress(value.trim())) {
-                    return Promise.reject(new Error(t('leaderAdd.leaderAddressInvalid') || '钱包地址格式不正确（必须是 0x 开头的 42 位地址）'))
-                  }
-                  return Promise.resolve()
-                }
-              }
-            ]}
-            tooltip={t('leaderAdd.leaderAddressTooltip') || '被跟单者的钱包地址，系统将监控该地址的交易并自动跟单'}
-          >
-            <Input placeholder="0x..." style={{ fontFamily: 'monospace' }} />
-          </Form.Item>
-          
-          <Form.Item
-            label={t('leaderAdd.leaderName') || 'Leader 名称'}
-            name="leaderName"
-            tooltip={t('leaderAdd.leaderNameTooltip') || '可选，用于标识 Leader，方便管理'}
-          >
-            <Input placeholder={t('leaderAdd.leaderNamePlaceholder') || '可选，用于标识 Leader'} />
-          </Form.Item>
-          
-          <Form.Item
-            label={t('leaderAdd.remark') || 'Leader 备注'}
-            name="remark"
-            tooltip={t('leaderAdd.remarkTooltip') || '可选，用于记录 Leader 的备注信息'}
-          >
-            <Input.TextArea 
-              placeholder={t('leaderAdd.remarkPlaceholder') || '可选，用于记录 Leader 的备注信息'} 
-              rows={3}
-              maxLength={500}
-              showCount
-            />
-          </Form.Item>
-          
-          <Form.Item
-            label={t('leaderAdd.website') || 'Leader 网站'}
-            name="website"
-            tooltip={t('leaderAdd.websiteTooltip') || '可选，Leader 的网站链接'}
-            rules={[
-              {
-                type: 'url',
-                message: t('leaderAdd.websiteInvalid') || '请输入有效的 URL 地址'
-              }
-            ]}
-          >
-            <Input placeholder={t('leaderAdd.websitePlaceholder') || '可选，例如：https://example.com'} />
-          </Form.Item>
-          
-          <Form.Item>
-            <Space>
-              <Button
-                type="primary"
-                htmlType="submit"
-                loading={loading}
-                size={isMobile ? 'middle' : 'large'}
-              >
-                {t('leaderAdd.add') || '添加 Leader'}
-              </Button>
-              <Button onClick={() => navigate('/leaders')}>
-                {t('leaderAdd.cancel') || '取消'}
-              </Button>
-            </Space>
-          </Form.Item>
-        </Form>
+          onSuccess={handleSuccess}
+          onCancel={() => navigate('/leaders')}
+          showCancelButton={true}
+        />
       </Card>
     </div>
   )

frontend/src/types/index.ts

@@ -205,6 +205,9 @@ export interface CopyTrading {
   maxSpread?: string
   minPrice?: string  // 最低价格（可选），NULL表示不限制最低价
   maxPrice?: string  // 最高价格（可选），NULL表示不限制最高价
+  // 最大仓位配置
+  maxPositionValue?: string  // 最大仓位金额（USDC），NULL表示不启用
+  maxPositionCount?: number  // 最大仓位数量，NULL表示不启用
   // 新增配置字段
   configName?: string  // 配置名（可选，但提供时必须非空）
   pushFailedOrders: boolean  // 推送失败订单（默认关闭）
@@ -248,6 +251,9 @@ export interface CopyTradingCreateRequest {
   maxSpread?: string
   minPrice?: string  // 最低价格（可选），NULL表示不限制最低价
   maxPrice?: string  // 最高价格（可选），NULL表示不限制最高价
+  // 最大仓位配置
+  maxPositionValue?: string  // 最大仓位金额（USDC），NULL表示不启用
+  maxPositionCount?: number  // 最大仓位数量，NULL表示不启用
   // 新增配置字段
   configName?: string  // 配置名（可选，但提供时必须非空）
   pushFailedOrders?: boolean  // 推送失败订单（可选）
@@ -279,6 +285,9 @@ export interface CopyTradingUpdateRequest {
   maxSpread?: string
   minPrice?: string  // 最低价格（可选），NULL表示不限制最低价
   maxPrice?: string  // 最高价格（可选），NULL表示不限制最高价
+  // 最大仓位配置
+  maxPositionValue?: string  // 最大仓位金额（USDC），NULL表示不启用
+  maxPositionCount?: number  // 最大仓位数量，NULL表示不启用
   // 新增配置字段
   configName?: string  // 配置名（可选，但提供时必须非空）
   pushFailedOrders?: boolean  // 推送失败订单（可选）