diff --git a/VERSION b/VERSION
index 62242964..3e3c866e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.1.220
+1.1.222
diff --git a/package-lock.json b/package-lock.json
index 039664e6..551062b7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -890,6 +890,7 @@
       "integrity": "sha512-2BCOP7TN8M+gVDj7/ht3hsaO/B/n5oDbiAyyvnRlNOs+u1o+JWNYTQrmpuNp1/Wq2gcFrI01JAW+paEKDMx/CA==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@babel/code-frame": "^7.27.1",
         "@babel/generator": "^7.28.3",
@@ -2998,6 +2999,7 @@
       "integrity": "sha512-yCAeZl7a0DxgNVteXFHt9+uyFbqXGy/ShC4BlcHkoE0AfGXYv/BUiplV72DjMYXHDBXFjhvr6DD1NiRVfB4j8g==",
       "devOptional": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "undici-types": "~6.21.0"
       }
@@ -3079,6 +3081,7 @@
       "integrity": "sha512-NZyJarBfL7nWwIq+FDL6Zp/yHEhePMNnnJ0y3qfieCrmNvYct8uvtiV41UvlSe6apAfk0fY1FbWx+NwfmpvtTg==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -3534,6 +3537,7 @@
         }
       ],
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "caniuse-lite": "^1.0.30001737",
         "electron-to-chromium": "^1.5.211",
@@ -4421,6 +4425,7 @@
       "deprecated": "This version is no longer supported. Please see https://eslint.org/version-support for other options.",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.2.0",
         "@eslint-community/regexpp": "^4.6.1",
@@ -4477,6 +4482,7 @@
       "integrity": "sha512-82GZUjRS0p/jganf6q1rEO25VSoHH0hKPCTrgillPjdI/3bgBhAE1QzHrHTizjpRvy6pGAvKjDJtk2pF9NDq8w==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "bin": {
         "eslint-config-prettier": "bin/cli.js"
       },
@@ -7575,6 +7581,7 @@
       "integrity": "sha512-I7AIg5boAr5R0FFtJ6rCfD+LFsWHp81dolrFD8S79U9tb8Az2nGrJncnMSnys+bpQJfRUzqs9hnA81OAA3hCuQ==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "bin": {
         "prettier": "bin/prettier.cjs"
       },
@@ -9014,6 +9021,7 @@
       "resolved": "https://registry.npmmirror.com/winston/-/winston-3.17.0.tgz",
       "integrity": "sha512-DLiFIXYC5fMPxaRg832S6F5mJYvePtmO5G9v9IgUFPhXm9/GkXarH/TUrBAVzhTCzAj9anE/+GjrgXp/54nOgw==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@colors/colors": "^1.6.0",
         "@dabh/diagnostics": "^2.0.2",
diff --git a/src/handlers/geminiHandlers.js b/src/handlers/geminiHandlers.js
index cfdf35e0..87295d31 100644
--- a/src/handlers/geminiHandlers.js
+++ b/src/handlers/geminiHandlers.js
@@ -449,9 +449,8 @@ async function handleMessages(req, res) {
 
       // 添加代理配置
       if (proxyConfig) {
-        const proxyHelper = new ProxyHelper()
-        axiosConfig.httpsAgent = proxyHelper.createProxyAgent(proxyConfig)
-        axiosConfig.httpAgent = proxyHelper.createProxyAgent(proxyConfig)
+        axiosConfig.httpsAgent = ProxyHelper.createProxyAgent(proxyConfig)
+        axiosConfig.httpAgent = ProxyHelper.createProxyAgent(proxyConfig)
       }
 
       try {
@@ -732,9 +731,8 @@ async function handleModels(req, res) {
           headers: { 'Content-Type': 'application/json' }
         }
         if (proxyConfig) {
-          const proxyHelper = new ProxyHelper()
-          axiosConfig.httpsAgent = proxyHelper.createProxyAgent(proxyConfig)
-          axiosConfig.httpAgent = proxyHelper.createProxyAgent(proxyConfig)
+          axiosConfig.httpsAgent = ProxyHelper.createProxyAgent(proxyConfig)
+          axiosConfig.httpAgent = ProxyHelper.createProxyAgent(proxyConfig)
         }
         const response = await axios(axiosConfig)
         models = (response.data.models || []).map((m) => ({
@@ -1234,9 +1232,8 @@ async function handleCountTokens(req, res) {
       }
 
       if (proxyConfig) {
-        const proxyHelper = new ProxyHelper()
-        axiosConfig.httpsAgent = proxyHelper.createProxyAgent(proxyConfig)
-        axiosConfig.httpAgent = proxyHelper.createProxyAgent(proxyConfig)
+        axiosConfig.httpsAgent = ProxyHelper.createProxyAgent(proxyConfig)
+        axiosConfig.httpAgent = ProxyHelper.createProxyAgent(proxyConfig)
       }
 
       try {
@@ -1963,9 +1960,8 @@ async function handleStandardGenerateContent(req, res) {
       }
 
       if (proxyConfig) {
-        const proxyHelper = new ProxyHelper()
-        axiosConfig.httpsAgent = proxyHelper.createProxyAgent(proxyConfig)
-        axiosConfig.httpAgent = proxyHelper.createProxyAgent(proxyConfig)
+        axiosConfig.httpsAgent = ProxyHelper.createProxyAgent(proxyConfig)
+        axiosConfig.httpAgent = ProxyHelper.createProxyAgent(proxyConfig)
       }
 
       try {
@@ -2246,9 +2242,8 @@ async function handleStandardStreamGenerateContent(req, res) {
       }
 
       if (proxyConfig) {
-        const proxyHelper = new ProxyHelper()
-        axiosConfig.httpsAgent = proxyHelper.createProxyAgent(proxyConfig)
-        axiosConfig.httpAgent = proxyHelper.createProxyAgent(proxyConfig)
+        axiosConfig.httpsAgent = ProxyHelper.createProxyAgent(proxyConfig)
+        axiosConfig.httpAgent = ProxyHelper.createProxyAgent(proxyConfig)
       }
 
       try {
diff --git a/src/routes/admin/usageStats.js b/src/routes/admin/usageStats.js
index f44a1b4d..18d6b436 100644
--- a/src/routes/admin/usageStats.js
+++ b/src/routes/admin/usageStats.js
@@ -1,8 +1,10 @@
 const express = require('express')
 const apiKeyService = require('../../services/apiKeyService')
+const ccrAccountService = require('../../services/ccrAccountService')
 const claudeAccountService = require('../../services/claudeAccountService')
 const claudeConsoleAccountService = require('../../services/claudeConsoleAccountService')
 const geminiAccountService = require('../../services/geminiAccountService')
+const geminiApiAccountService = require('../../services/geminiApiAccountService')
 const openaiAccountService = require('../../services/openaiAccountService')
 const openaiResponsesAccountService = require('../../services/openaiResponsesAccountService')
 const droidAccountService = require('../../services/droidAccountService')
@@ -148,7 +150,6 @@ router.get('/accounts/:accountId/usage-history', authenticateAdmin, async (req,
           accountData = await geminiAccountService.getAccount(accountId)
           break
         case 'gemini-api': {
-          const geminiApiAccountService = require('../../services/geminiApiAccountService')
           accountData = await geminiApiAccountService.getAccount(accountId)
           break
         }
@@ -369,7 +370,9 @@ router.get('/usage-trend', authenticateAdmin, async (req, res) => {
         logger.info(`  endDate (raw): ${endDate}`)
         logger.info(`  startTime (parsed): ${startTime.toISOString()}`)
         logger.info(`  endTime (parsed): ${endTime.toISOString()}`)
-        logger.info(`  System timezone offset: ${require('../../../config/config').system.timezoneOffset || 8}`)
+        logger.info(
+          `  System timezone offset: ${require('../../../config/config').system.timezoneOffset || 8}`
+        )
       } else {
         // 默认最近24小时
         endTime = new Date()
@@ -890,7 +893,6 @@ router.get('/account-usage-trend', authenticateAdmin, async (req, res) => {
         })
       ]
     } else if (group === 'gemini') {
-      const geminiApiAccountService = require('../../services/geminiApiAccountService')
       const [geminiAccounts, geminiApiAccounts] = await Promise.all([
         geminiAccountService.getAllAccounts(),
         geminiApiAccountService.getAllAccounts(true)
@@ -1818,4 +1820,330 @@ router.get('/usage-costs', authenticateAdmin, async (req, res) => {
   }
 })
 
+// 获取 API Key 的请求记录时间线
+router.get('/api-keys/:keyId/usage-records', authenticateAdmin, async (req, res) => {
+  try {
+    const { keyId } = req.params
+    const {
+      page = 1,
+      pageSize = 50,
+      startDate,
+      endDate,
+      model,
+      accountId,
+      sortOrder = 'desc'
+    } = req.query
+
+    const pageNumber = Math.max(parseInt(page, 10) || 1, 1)
+    const pageSizeNumber = Math.min(Math.max(parseInt(pageSize, 10) || 50, 1), 200)
+    const normalizedSortOrder = sortOrder === 'asc' ? 'asc' : 'desc'
+
+    const startTime = startDate ? new Date(startDate) : null
+    const endTime = endDate ? new Date(endDate) : null
+
+    if (
+      (startDate && Number.isNaN(startTime?.getTime())) ||
+      (endDate && Number.isNaN(endTime?.getTime()))
+    ) {
+      return res.status(400).json({ success: false, error: 'Invalid date range' })
+    }
+
+    if (startTime && endTime && startTime > endTime) {
+      return res
+        .status(400)
+        .json({ success: false, error: 'Start date must be before or equal to end date' })
+    }
+
+    const apiKeyInfo = await redis.getApiKey(keyId)
+    if (!apiKeyInfo || Object.keys(apiKeyInfo).length === 0) {
+      return res.status(404).json({ success: false, error: 'API key not found' })
+    }
+
+    const rawRecords = await redis.getUsageRecords(keyId, 5000)
+
+    const accountTypeNames = {
+      claude: 'Claude官方',
+      'claude-console': 'Claude Console',
+      ccr: 'Claude Console Relay',
+      openai: 'OpenAI',
+      'openai-responses': 'OpenAI Responses',
+      gemini: 'Gemini',
+      'gemini-api': 'Gemini API',
+      droid: 'Droid',
+      unknown: '未知渠道'
+    }
+
+    const accountServices = [
+      { type: 'claude', getter: (id) => claudeAccountService.getAccount(id) },
+      { type: 'claude-console', getter: (id) => claudeConsoleAccountService.getAccount(id) },
+      { type: 'ccr', getter: (id) => ccrAccountService.getAccount(id) },
+      { type: 'openai', getter: (id) => openaiAccountService.getAccount(id) },
+      { type: 'openai-responses', getter: (id) => openaiResponsesAccountService.getAccount(id) },
+      { type: 'gemini', getter: (id) => geminiAccountService.getAccount(id) },
+      { type: 'gemini-api', getter: (id) => geminiApiAccountService.getAccount(id) },
+      { type: 'droid', getter: (id) => droidAccountService.getAccount(id) }
+    ]
+
+    const accountCache = new Map()
+    const resolveAccountInfo = async (id, type) => {
+      if (!id) {
+        return null
+      }
+
+      const cacheKey = `${type || 'any'}:${id}`
+      if (accountCache.has(cacheKey)) {
+        return accountCache.get(cacheKey)
+      }
+
+      const servicesToTry = type
+        ? accountServices.filter((svc) => svc.type === type)
+        : accountServices
+
+      for (const service of servicesToTry) {
+        try {
+          const account = await service.getter(id)
+          if (account) {
+            const info = {
+              id,
+              name: account.name || account.email || id,
+              type: service.type,
+              status: account.status || account.isActive
+            }
+            accountCache.set(cacheKey, info)
+            return info
+          }
+        } catch (error) {
+          logger.debug(`⚠️ Failed to resolve account ${id} via ${service.type}: ${error.message}`)
+        }
+      }
+
+      accountCache.set(cacheKey, null)
+      return null
+    }
+
+    const toUsageObject = (record) => ({
+      input_tokens: record.inputTokens || 0,
+      output_tokens: record.outputTokens || 0,
+      cache_creation_input_tokens: record.cacheCreateTokens || 0,
+      cache_read_input_tokens: record.cacheReadTokens || 0,
+      cache_creation: record.cacheCreation || record.cache_creation || null
+    })
+
+    const withinRange = (record) => {
+      if (!record.timestamp) {
+        return false
+      }
+      const ts = new Date(record.timestamp)
+      if (Number.isNaN(ts.getTime())) {
+        return false
+      }
+      if (startTime && ts < startTime) {
+        return false
+      }
+      if (endTime && ts > endTime) {
+        return false
+      }
+      return true
+    }
+
+    const filteredRecords = rawRecords.filter((record) => {
+      if (!withinRange(record)) {
+        return false
+      }
+      if (model && record.model !== model) {
+        return false
+      }
+      if (accountId && record.accountId !== accountId) {
+        return false
+      }
+      return true
+    })
+
+    filteredRecords.sort((a, b) => {
+      const aTime = new Date(a.timestamp).getTime()
+      const bTime = new Date(b.timestamp).getTime()
+      if (Number.isNaN(aTime) || Number.isNaN(bTime)) {
+        return 0
+      }
+      return normalizedSortOrder === 'asc' ? aTime - bTime : bTime - aTime
+    })
+
+    const summary = {
+      totalRequests: 0,
+      inputTokens: 0,
+      outputTokens: 0,
+      cacheCreateTokens: 0,
+      cacheReadTokens: 0,
+      totalTokens: 0,
+      totalCost: 0
+    }
+
+    const modelSet = new Set()
+    const accountOptionMap = new Map()
+    let earliestTimestamp = null
+    let latestTimestamp = null
+
+    for (const record of filteredRecords) {
+      const usage = toUsageObject(record)
+      const costData = CostCalculator.calculateCost(usage, record.model || 'unknown')
+      const computedCost =
+        typeof record.cost === 'number' ? record.cost : costData?.costs?.total || 0
+      const totalTokens =
+        record.totalTokens ||
+        usage.input_tokens +
+          usage.output_tokens +
+          usage.cache_creation_input_tokens +
+          usage.cache_read_input_tokens
+
+      summary.totalRequests += 1
+      summary.inputTokens += usage.input_tokens
+      summary.outputTokens += usage.output_tokens
+      summary.cacheCreateTokens += usage.cache_creation_input_tokens
+      summary.cacheReadTokens += usage.cache_read_input_tokens
+      summary.totalTokens += totalTokens
+      summary.totalCost += computedCost
+
+      if (record.model) {
+        modelSet.add(record.model)
+      }
+
+      if (record.accountId) {
+        const key = `${record.accountId}:${record.accountType || 'unknown'}`
+        if (!accountOptionMap.has(key)) {
+          accountOptionMap.set(key, {
+            id: record.accountId,
+            accountType: record.accountType || 'unknown'
+          })
+        }
+      }
+
+      if (record.timestamp) {
+        const ts = new Date(record.timestamp)
+        if (!Number.isNaN(ts.getTime())) {
+          if (!earliestTimestamp || ts < earliestTimestamp) {
+            earliestTimestamp = ts
+          }
+          if (!latestTimestamp || ts > latestTimestamp) {
+            latestTimestamp = ts
+          }
+        }
+      }
+    }
+
+    const totalRecords = filteredRecords.length
+    const totalPages = totalRecords > 0 ? Math.ceil(totalRecords / pageSizeNumber) : 0
+    const safePage = totalPages > 0 ? Math.min(pageNumber, totalPages) : 1
+    const startIndex = (safePage - 1) * pageSizeNumber
+    const pageRecords =
+      totalRecords === 0 ? [] : filteredRecords.slice(startIndex, startIndex + pageSizeNumber)
+
+    const enrichedRecords = []
+    for (const record of pageRecords) {
+      const usage = toUsageObject(record)
+      const costData = CostCalculator.calculateCost(usage, record.model || 'unknown')
+      const computedCost =
+        typeof record.cost === 'number' ? record.cost : costData?.costs?.total || 0
+      const totalTokens =
+        record.totalTokens ||
+        usage.input_tokens +
+          usage.output_tokens +
+          usage.cache_creation_input_tokens +
+          usage.cache_read_input_tokens
+
+      const accountInfo = await resolveAccountInfo(record.accountId, record.accountType)
+      const resolvedAccountType = accountInfo?.type || record.accountType || 'unknown'
+
+      enrichedRecords.push({
+        timestamp: record.timestamp,
+        model: record.model || 'unknown',
+        accountId: record.accountId || null,
+        accountName: accountInfo?.name || null,
+        accountStatus: accountInfo?.status ?? null,
+        accountType: resolvedAccountType,
+        accountTypeName: accountTypeNames[resolvedAccountType] || '未知渠道',
+        inputTokens: usage.input_tokens,
+        outputTokens: usage.output_tokens,
+        cacheCreateTokens: usage.cache_creation_input_tokens,
+        cacheReadTokens: usage.cache_read_input_tokens,
+        ephemeral5mTokens: record.ephemeral5mTokens || 0,
+        ephemeral1hTokens: record.ephemeral1hTokens || 0,
+        totalTokens,
+        isLongContextRequest: record.isLongContext || record.isLongContextRequest || false,
+        cost: Number(computedCost.toFixed(6)),
+        costFormatted:
+          record.costFormatted ||
+          costData?.formatted?.total ||
+          CostCalculator.formatCost(computedCost),
+        costBreakdown: record.costBreakdown || {
+          input: costData?.costs?.input || 0,
+          output: costData?.costs?.output || 0,
+          cacheCreate: costData?.costs?.cacheWrite || 0,
+          cacheRead: costData?.costs?.cacheRead || 0,
+          total: costData?.costs?.total || computedCost
+        },
+        responseTime: record.responseTime || null
+      })
+    }
+
+    const accountOptions = []
+    for (const option of accountOptionMap.values()) {
+      const info = await resolveAccountInfo(option.id, option.accountType)
+      const resolvedType = info?.type || option.accountType || 'unknown'
+      accountOptions.push({
+        id: option.id,
+        name: info?.name || option.id,
+        accountType: resolvedType,
+        accountTypeName: accountTypeNames[resolvedType] || '未知渠道'
+      })
+    }
+
+    return res.json({
+      success: true,
+      data: {
+        records: enrichedRecords,
+        pagination: {
+          currentPage: safePage,
+          pageSize: pageSizeNumber,
+          totalRecords,
+          totalPages,
+          hasNextPage: totalPages > 0 && safePage < totalPages,
+          hasPreviousPage: totalPages > 0 && safePage > 1
+        },
+        filters: {
+          startDate: startTime ? startTime.toISOString() : null,
+          endDate: endTime ? endTime.toISOString() : null,
+          model: model || null,
+          accountId: accountId || null,
+          sortOrder: normalizedSortOrder
+        },
+        apiKeyInfo: {
+          id: keyId,
+          name: apiKeyInfo.name || apiKeyInfo.label || keyId
+        },
+        summary: {
+          ...summary,
+          totalCost: Number(summary.totalCost.toFixed(6)),
+          avgCost:
+            summary.totalRequests > 0
+              ? Number((summary.totalCost / summary.totalRequests).toFixed(6))
+              : 0
+        },
+        availableFilters: {
+          models: Array.from(modelSet),
+          accounts: accountOptions,
+          dateRange: {
+            earliest: earliestTimestamp ? earliestTimestamp.toISOString() : null,
+            latest: latestTimestamp ? latestTimestamp.toISOString() : null
+          }
+        }
+      }
+    })
+  } catch (error) {
+    logger.error('❌ Failed to get API key usage records:', error)
+    return res
+      .status(500)
+      .json({ error: 'Failed to get API key usage records', message: error.message })
+  }
+})
+
 module.exports = router
diff --git a/src/routes/admin/utils.js b/src/routes/admin/utils.js
index 47b68123..49c02015 100644
--- a/src/routes/admin/utils.js
+++ b/src/routes/admin/utils.js
@@ -33,7 +33,9 @@ function mapExpiryField(updates, accountType, accountId) {
   if ('expiresAt' in mappedUpdates) {
     mappedUpdates.subscriptionExpiresAt = mappedUpdates.expiresAt
     delete mappedUpdates.expiresAt
-    logger.info(`Mapping expiresAt to subscriptionExpiresAt for ${accountType} account ${accountId}`)
+    logger.info(
+      `Mapping expiresAt to subscriptionExpiresAt for ${accountType} account ${accountId}`
+    )
   }
   return mappedUpdates
 }
diff --git a/web/admin-spa/src/components/apikeys/RecordDetailModal.vue b/web/admin-spa/src/components/apikeys/RecordDetailModal.vue
new file mode 100644
index 00000000..6a4b6482
--- /dev/null
+++ b/web/admin-spa/src/components/apikeys/RecordDetailModal.vue
@@ -0,0 +1,211 @@
+<template>
+  <el-dialog
+    :append-to-body="true"
+    class="record-detail-modal"
+    :close-on-click-modal="false"
+    :destroy-on-close="true"
+    :model-value="show"
+    :show-close="false"
+    top="10vh"
+    width="720px"
+    @close="emitClose"
+  >
+    <template #header>
+      <div class="flex items-center justify-between">
+        <div>
+          <p class="text-xs font-medium uppercase tracking-wide text-gray-500 dark:text-gray-400">
+            请求详情
+          </p>
+          <p class="text-lg font-bold text-gray-900 dark:text-gray-100">
+            {{ record?.model || '未知模型' }}
+          </p>
+        </div>
+        <button
+          aria-label="关闭"
+          class="rounded-full p-2 text-gray-500 transition hover:bg-gray-100 hover:text-gray-700 dark:text-gray-300 dark:hover:bg-gray-800 dark:hover:text-gray-100"
+          @click="emitClose"
+        >
+          <i class="fas fa-times" />
+        </button>
+      </div>
+    </template>
+
+    <div class="space-y-4">
+      <div class="grid gap-3 md:grid-cols-2">
+        <div
+          class="rounded-lg border border-gray-200 bg-gray-50 p-4 dark:border-gray-800 dark:bg-gray-900"
+        >
+          <h4 class="mb-3 text-sm font-semibold text-gray-800 dark:text-gray-200">基本信息</h4>
+          <ul class="space-y-2 text-sm text-gray-700 dark:text-gray-300">
+            <li class="flex items-center justify-between">
+              <span class="text-gray-500 dark:text-gray-400">时间</span>
+              <span class="font-medium">{{ formattedTime }}</span>
+            </li>
+            <li class="flex items-center justify-between">
+              <span class="text-gray-500 dark:text-gray-400">模型</span>
+              <span class="font-medium">{{ record?.model || '未知模型' }}</span>
+            </li>
+            <li class="flex items-center justify-between">
+              <span class="text-gray-500 dark:text-gray-400">账户</span>
+              <span class="font-medium">{{ record?.accountName || '未知账户' }}</span>
+            </li>
+            <li class="flex items-center justify-between">
+              <span class="text-gray-500 dark:text-gray-400">渠道</span>
+              <span class="font-medium">{{ record?.accountTypeName || '未知渠道' }}</span>
+            </li>
+          </ul>
+        </div>
+
+        <div
+          class="rounded-lg border border-gray-200 bg-gray-50 p-4 dark:border-gray-800 dark:bg-gray-900"
+        >
+          <h4 class="mb-3 text-sm font-semibold text-gray-800 dark:text-gray-200">Token 使用</h4>
+          <ul class="space-y-2 text-sm text-gray-700 dark:text-gray-300">
+            <li class="flex items-center justify-between">
+              <span class="text-gray-500 dark:text-gray-400">输入 Token</span>
+              <span class="font-semibold text-blue-600 dark:text-blue-400">
+                {{ formatNumber(record?.inputTokens) }}
+              </span>
+            </li>
+            <li class="flex items-center justify-between">
+              <span class="text-gray-500 dark:text-gray-400">输出 Token</span>
+              <span class="font-semibold text-green-600 dark:text-green-400">
+                {{ formatNumber(record?.outputTokens) }}
+              </span>
+            </li>
+            <li class="flex items-center justify-between">
+              <span class="text-gray-500 dark:text-gray-400">缓存创建</span>
+              <span class="font-semibold text-purple-600 dark:text-purple-400">
+                {{ formatNumber(record?.cacheCreateTokens) }}
+              </span>
+            </li>
+            <li class="flex items-center justify-between">
+              <span class="text-gray-500 dark:text-gray-400">缓存读取</span>
+              <span class="font-semibold text-orange-600 dark:text-orange-400">
+                {{ formatNumber(record?.cacheReadTokens) }}
+              </span>
+            </li>
+            <li class="flex items-center justify-between">
+              <span class="text-gray-500 dark:text-gray-400">总计</span>
+              <span class="font-semibold text-gray-900 dark:text-gray-100">
+                {{ formatNumber(record?.totalTokens) }}
+              </span>
+            </li>
+          </ul>
+        </div>
+      </div>
+
+      <div
+        class="rounded-lg border border-gray-200 bg-white p-4 dark:border-gray-800 dark:bg-gray-900"
+      >
+        <h4 class="mb-3 text-sm font-semibold text-gray-800 dark:text-gray-200">费用详情</h4>
+        <div class="grid gap-3 sm:grid-cols-2">
+          <div
+            class="flex items-center justify-between rounded-md bg-gray-50 px-3 py-2 dark:bg-gray-800"
+          >
+            <span class="text-sm text-gray-500 dark:text-gray-400">输入费用</span>
+            <span class="text-sm font-semibold text-gray-900 dark:text-gray-100">
+              {{ formattedCosts.input }}
+            </span>
+          </div>
+          <div
+            class="flex items-center justify-between rounded-md bg-gray-50 px-3 py-2 dark:bg-gray-800"
+          >
+            <span class="text-sm text-gray-500 dark:text-gray-400">输出费用</span>
+            <span class="text-sm font-semibold text-gray-900 dark:text-gray-100">
+              {{ formattedCosts.output }}
+            </span>
+          </div>
+          <div
+            class="flex items-center justify-between rounded-md bg-gray-50 px-3 py-2 dark:bg-gray-800"
+          >
+            <span class="text-sm text-gray-500 dark:text-gray-400">缓存创建</span>
+            <span class="text-sm font-semibold text-gray-900 dark:text-gray-100">
+              {{ formattedCosts.cacheCreate }}
+            </span>
+          </div>
+          <div
+            class="flex items-center justify-between rounded-md bg-gray-50 px-3 py-2 dark:bg-gray-800"
+          >
+            <span class="text-sm text-gray-500 dark:text-gray-400">缓存读取</span>
+            <span class="text-sm font-semibold text-gray-900 dark:text-gray-100">
+              {{ formattedCosts.cacheRead }}
+            </span>
+          </div>
+        </div>
+        <div
+          class="mt-4 flex items-center justify-between rounded-md border border-gray-200 bg-gray-50 px-4 py-3 dark:border-gray-800 dark:bg-gray-800"
+        >
+          <span class="text-sm font-semibold text-gray-700 dark:text-gray-200">总费用</span>
+          <div class="text-base font-bold text-yellow-600 dark:text-yellow-400">
+            {{ record?.costFormatted || formattedCosts.total }}
+          </div>
+        </div>
+      </div>
+    </div>
+
+    <template #footer>
+      <div class="flex justify-end">
+        <el-button type="primary" @click="emitClose">关闭</el-button>
+      </div>
+    </template>
+  </el-dialog>
+</template>
+
+<script setup>
+import { computed } from 'vue'
+import dayjs from 'dayjs'
+import { formatNumber } from '@/utils/format'
+
+const props = defineProps({
+  show: {
+    type: Boolean,
+    default: false
+  },
+  record: {
+    type: Object,
+    default: () => ({})
+  }
+})
+
+const emit = defineEmits(['close'])
+const emitClose = () => emit('close')
+
+const formattedTime = computed(() => {
+  if (!props.record?.timestamp) return '未知时间'
+  return dayjs(props.record.timestamp).format('YYYY-MM-DD HH:mm:ss')
+})
+
+const formattedCosts = computed(() => {
+  const breakdown = props.record?.costBreakdown || {}
+  const formatValue = (value) => {
+    const num = typeof value === 'number' ? value : 0
+    if (num >= 1) return `$${num.toFixed(2)}`
+    if (num >= 0.001) return `$${num.toFixed(4)}`
+    return `$${num.toFixed(6)}`
+  }
+
+  return {
+    input: formatValue(breakdown.input),
+    output: formatValue(breakdown.output),
+    cacheCreate: formatValue(breakdown.cacheCreate),
+    cacheRead: formatValue(breakdown.cacheRead),
+    total: formatValue(breakdown.total)
+  }
+})
+</script>
+
+<style scoped>
+.record-detail-modal :deep(.el-dialog__header) {
+  margin: 0;
+  padding: 16px 16px 0;
+}
+
+.record-detail-modal :deep(.el-dialog__body) {
+  padding: 12px 16px 4px;
+}
+
+.record-detail-modal :deep(.el-dialog__footer) {
+  padding: 8px 16px 16px;
+}
+</style>
diff --git a/web/admin-spa/src/components/apikeys/UsageDetailModal.vue b/web/admin-spa/src/components/apikeys/UsageDetailModal.vue
index 905f1581..846263f2 100644
--- a/web/admin-spa/src/components/apikeys/UsageDetailModal.vue
+++ b/web/admin-spa/src/components/apikeys/UsageDetailModal.vue
@@ -231,6 +231,9 @@
 
         <!-- 底部按钮 -->
         <div class="mt-4 flex justify-end gap-2 sm:mt-6 sm:gap-3">
+          <button class="btn btn-primary px-4 py-2 text-sm" type="button" @click="openTimeline">
+            查看请求时间线
+          </button>
           <button class="btn btn-secondary px-4 py-2 text-sm" type="button" @click="close">
             关闭
           </button>
@@ -256,7 +259,7 @@ const props = defineProps({
   }
 })
 
-const emit = defineEmits(['close'])
+const emit = defineEmits(['close', 'open-timeline'])
 
 // 计算属性
 const totalRequests = computed(() => props.apiKey.usage?.total?.requests || 0)
@@ -320,6 +323,10 @@ const formatTokenCount = (count) => {
 const close = () => {
   emit('close')
 }
+
+const openTimeline = () => {
+  emit('open-timeline', props.apiKey?.id)
+}
 </script>
 
 <style scoped>
diff --git a/web/admin-spa/src/router/index.js b/web/admin-spa/src/router/index.js
index 16a2b50a..3375c906 100644
--- a/web/admin-spa/src/router/index.js
+++ b/web/admin-spa/src/router/index.js
@@ -11,6 +11,7 @@ const UserManagementView = () => import('@/views/UserManagementView.vue')
 const MainLayout = () => import('@/components/layout/MainLayout.vue')
 const DashboardView = () => import('@/views/DashboardView.vue')
 const ApiKeysView = () => import('@/views/ApiKeysView.vue')
+const ApiKeyUsageRecordsView = () => import('@/views/ApiKeyUsageRecordsView.vue')
 const AccountsView = () => import('@/views/AccountsView.vue')
 const TutorialView = () => import('@/views/TutorialView.vue')
 const SettingsView = () => import('@/views/SettingsView.vue')
@@ -85,6 +86,18 @@ const routes = [
       }
     ]
   },
+  {
+    path: '/api-keys/:keyId/usage-records',
+    component: MainLayout,
+    meta: { requiresAuth: true },
+    children: [
+      {
+        path: '',
+        name: 'ApiKeyUsageRecords',
+        component: ApiKeyUsageRecordsView
+      }
+    ]
+  },
   {
     path: '/accounts',
     component: MainLayout,
diff --git a/web/admin-spa/src/stores/dashboard.js b/web/admin-spa/src/stores/dashboard.js
index 4e4599ba..76e987b9 100644
--- a/web/admin-spa/src/stores/dashboard.js
+++ b/web/admin-spa/src/stores/dashboard.js
@@ -67,22 +67,72 @@ export const useDashboardStore = defineStore('dashboard', () => {
     groupLabel: 'Claude账户'
   })
 
+  // 本地偏好
+  const STORAGE_KEYS = {
+    preset: 'dashboard:date:preset',
+    granularity: 'dashboard:trend:granularity'
+  }
+  const defaultPreset = 'today'
+  const defaultGranularity = 'day'
+
+  const getPresetOptions = (granularity) =>
+    granularity === 'hour'
+      ? [
+          { value: 'last24h', label: '近24小时', hours: 24 },
+          { value: 'yesterday', label: '昨天', hours: 24 },
+          { value: 'dayBefore', label: '前天', hours: 24 }
+        ]
+      : [
+          { value: 'today', label: '今日', days: 1 },
+          { value: '7days', label: '7天', days: 7 },
+          { value: '30days', label: '30天', days: 30 }
+        ]
+
+  const readFromStorage = (key, fallback) => {
+    try {
+      const value = localStorage.getItem(key)
+      return value || fallback
+    } catch (error) {
+      return fallback
+    }
+  }
+
+  const saveToStorage = (key, value) => {
+    try {
+      localStorage.setItem(key, value)
+    } catch (error) {
+      // 忽略存储错误，避免影响渲染
+    }
+  }
+
+  const normalizePresetForGranularity = (preset, granularity) => {
+    const options = getPresetOptions(granularity)
+    const hasPreset = options.some((opt) => opt.value === preset)
+    if (hasPreset) return preset
+    return granularity === 'hour' ? 'last24h' : defaultPreset
+  }
+
+  const storedGranularity = readFromStorage(STORAGE_KEYS.granularity, defaultGranularity)
+  const initialGranularity = ['day', 'hour'].includes(storedGranularity)
+    ? storedGranularity
+    : defaultGranularity
+  const initialPreset = normalizePresetForGranularity(
+    readFromStorage(STORAGE_KEYS.preset, defaultPreset),
+    initialGranularity
+  )
+
   // 日期筛选
   const dateFilter = ref({
     type: 'preset', // preset 或 custom
-    preset: '7days', // today, 7days, 30days
+    preset: initialPreset, // today, 7days, 30days
     customStart: '',
     customEnd: '',
     customRange: null,
-    presetOptions: [
-      { value: 'today', label: '今日', days: 1 },
-      { value: '7days', label: '7天', days: 7 },
-      { value: '30days', label: '30天', days: 30 }
-    ]
+    presetOptions: getPresetOptions(initialGranularity)
   })
 
   // 趋势图粒度
-  const trendGranularity = ref('day') // 'day' 或 'hour'
+  const trendGranularity = ref(initialGranularity) // 'day' 或 'hour'
   const apiKeysTrendMetric = ref('requests') // 'requests' 或 'tokens'
   const accountUsageGroup = ref('claude') // claude | openai | gemini
 
@@ -138,6 +188,21 @@ export const useDashboardStore = defineStore('dashboard', () => {
     }
   }
 
+  const persistDatePreferences = (
+    preset = dateFilter.value.preset,
+    granularity = trendGranularity.value
+  ) => {
+    saveToStorage(STORAGE_KEYS.preset, preset)
+    saveToStorage(STORAGE_KEYS.granularity, granularity)
+  }
+
+  const getEffectiveGranularity = () =>
+    dateFilter.value.type === 'preset' &&
+    dateFilter.value.preset === 'today' &&
+    trendGranularity.value === 'day'
+      ? 'hour'
+      : trendGranularity.value
+
   // 方法
   async function loadDashboardData(timeRange = null) {
     loading.value = true
@@ -232,7 +297,7 @@ export const useDashboardStore = defineStore('dashboard', () => {
     }
   }
 
-  async function loadUsageTrend(days = 7, granularity = 'day') {
+  async function loadUsageTrend(days = 7, granularity = getEffectiveGranularity()) {
     try {
       let url = '/admin/usage-trend?'
 
@@ -241,26 +306,9 @@ export const useDashboardStore = defineStore('dashboard', () => {
         url += `granularity=hour`
 
         if (dateFilter.value.customRange && dateFilter.value.customRange.length === 2) {
-          // 使用自定义时间范围 - 需要将系统时区时间转换为UTC
-          const convertToUTC = (systemTzTimeStr) => {
-            // 固定使用UTC+8，因为后端系统时区是UTC+8
-            const systemTz = 8
-            // 解析系统时区时间字符串
-            const [datePart, timePart] = systemTzTimeStr.split(' ')
-            const [year, month, day] = datePart.split('-').map(Number)
-            const [hours, minutes, seconds] = timePart.split(':').map(Number)
-
-            // 创建UTC时间，使其在系统时区显示为用户选择的时间
-            // 例如：用户选择 UTC+8 的 2025-07-25 00:00:00
-            // 对应的UTC时间是 2025-07-24 16:00:00
-            const utcDate = new Date(
-              Date.UTC(year, month - 1, day, hours - systemTz, minutes, seconds)
-            )
-            return utcDate.toISOString()
-          }
-
-          url += `&startDate=${encodeURIComponent(convertToUTC(dateFilter.value.customRange[0]))}`
-          url += `&endDate=${encodeURIComponent(convertToUTC(dateFilter.value.customRange[1]))}`
+          // 使用自定义时间范围 - 直接按系统时区字符串传递，避免额外时区偏移导致窗口错位
+          url += `&startDate=${encodeURIComponent(dateFilter.value.customRange[0])}`
+          url += `&endDate=${encodeURIComponent(dateFilter.value.customRange[1])}`
         } else {
           // 使用预设计算时间范围，与loadApiKeysTrend保持一致
           const now = new Date()
@@ -268,6 +316,12 @@ export const useDashboardStore = defineStore('dashboard', () => {
 
           if (dateFilter.value.type === 'preset') {
             switch (dateFilter.value.preset) {
+              case 'today': {
+                // 今日：使用系统时区的当日0点-23:59
+                startTime = getSystemTimezoneDay(now, true)
+                endTime = getSystemTimezoneDay(now, false)
+                break
+              }
               case 'last24h': {
                 // 近24小时：从当前时间往前推24小时
                 endTime = new Date(now)
@@ -318,34 +372,28 @@ export const useDashboardStore = defineStore('dashboard', () => {
     }
   }
 
-  async function loadModelStats(period = 'daily') {
+  async function loadModelStats(period = 'daily', granularity = null) {
+    const currentGranularity = granularity || getEffectiveGranularity()
     try {
       let url = `/admin/model-stats?period=${period}`
 
       // 如果是自定义时间范围或小时粒度，传递具体的时间参数
-      if (dateFilter.value.type === 'custom' || trendGranularity.value === 'hour') {
+      if (dateFilter.value.type === 'custom' || currentGranularity === 'hour') {
         if (dateFilter.value.customRange && dateFilter.value.customRange.length === 2) {
-          // 将系统时区时间转换为UTC
-          const convertToUTC = (systemTzTimeStr) => {
-            const systemTz = 8
-            const [datePart, timePart] = systemTzTimeStr.split(' ')
-            const [year, month, day] = datePart.split('-').map(Number)
-            const [hours, minutes, seconds] = timePart.split(':').map(Number)
-
-            const utcDate = new Date(
-              Date.UTC(year, month - 1, day, hours - systemTz, minutes, seconds)
-            )
-            return utcDate.toISOString()
-          }
-
-          url += `&startDate=${encodeURIComponent(convertToUTC(dateFilter.value.customRange[0]))}`
-          url += `&endDate=${encodeURIComponent(convertToUTC(dateFilter.value.customRange[1]))}`
-        } else if (trendGranularity.value === 'hour' && dateFilter.value.type === 'preset') {
+          // 按系统时区字符串直传，避免额外时区转换
+          url += `&startDate=${encodeURIComponent(dateFilter.value.customRange[0])}`
+          url += `&endDate=${encodeURIComponent(dateFilter.value.customRange[1])}`
+        } else if (currentGranularity === 'hour' && dateFilter.value.type === 'preset') {
           // 小时粒度的预设时间范围
           const now = new Date()
           let startTime, endTime
 
           switch (dateFilter.value.preset) {
+            case 'today': {
+              startTime = getSystemTimezoneDay(now, true)
+              endTime = getSystemTimezoneDay(now, false)
+              break
+            }
             case 'last24h': {
               endTime = new Date(now)
               startTime = new Date(now.getTime() - 24 * 60 * 60 * 1000)
@@ -374,7 +422,7 @@ export const useDashboardStore = defineStore('dashboard', () => {
           url += `&startDate=${encodeURIComponent(startTime.toISOString())}`
           url += `&endDate=${encodeURIComponent(endTime.toISOString())}`
         }
-      } else if (dateFilter.value.type === 'preset' && trendGranularity.value === 'day') {
+      } else if (dateFilter.value.type === 'preset' && currentGranularity === 'day') {
         // 天粒度的预设时间范围，需要传递startDate和endDate参数
         const now = new Date()
         let startDate, endDate
@@ -409,36 +457,20 @@ export const useDashboardStore = defineStore('dashboard', () => {
     }
   }
 
-  async function loadApiKeysTrend(metric = 'requests') {
+  async function loadApiKeysTrend(metric = 'requests', granularity = null) {
+    const currentGranularity = granularity || getEffectiveGranularity()
     try {
       let url = '/admin/api-keys-usage-trend?'
       let days = 7
 
-      if (trendGranularity.value === 'hour') {
+      if (currentGranularity === 'hour') {
         // 小时粒度，计算时间范围
         url += `granularity=hour`
 
         if (dateFilter.value.customRange && dateFilter.value.customRange.length === 2) {
-          // 使用自定义时间范围 - 需要将系统时区时间转换为UTC
-          const convertToUTC = (systemTzTimeStr) => {
-            // 固定使用UTC+8，因为后端系统时区是UTC+8
-            const systemTz = 8
-            // 解析系统时区时间字符串
-            const [datePart, timePart] = systemTzTimeStr.split(' ')
-            const [year, month, day] = datePart.split('-').map(Number)
-            const [hours, minutes, seconds] = timePart.split(':').map(Number)
-
-            // 创建UTC时间，使其在系统时区显示为用户选择的时间
-            // 例如：用户选择 UTC+8 的 2025-07-25 00:00:00
-            // 对应的UTC时间是 2025-07-24 16:00:00
-            const utcDate = new Date(
-              Date.UTC(year, month - 1, day, hours - systemTz, minutes, seconds)
-            )
-            return utcDate.toISOString()
-          }
-
-          url += `&startDate=${encodeURIComponent(convertToUTC(dateFilter.value.customRange[0]))}`
-          url += `&endDate=${encodeURIComponent(convertToUTC(dateFilter.value.customRange[1]))}`
+          // 使用自定义时间范围 - 按系统时区字符串直传
+          url += `&startDate=${encodeURIComponent(dateFilter.value.customRange[0])}`
+          url += `&endDate=${encodeURIComponent(dateFilter.value.customRange[1])}`
         } else {
           // 使用预设计算时间范围，与setDateFilterPreset保持一致
           const now = new Date()
@@ -446,6 +478,11 @@ export const useDashboardStore = defineStore('dashboard', () => {
 
           if (dateFilter.value.type === 'preset') {
             switch (dateFilter.value.preset) {
+              case 'today': {
+                startTime = getSystemTimezoneDay(now, true)
+                endTime = getSystemTimezoneDay(now, false)
+                break
+              }
               case 'last24h': {
                 // 近24小时：从当前时间往前推24小时
                 endTime = new Date(now)
@@ -511,29 +548,18 @@ export const useDashboardStore = defineStore('dashboard', () => {
     }
   }
 
-  async function loadAccountUsageTrend(group = accountUsageGroup.value) {
+  async function loadAccountUsageTrend(group = accountUsageGroup.value, granularity = null) {
+    const currentGranularity = granularity || getEffectiveGranularity()
     try {
       let url = '/admin/account-usage-trend?'
       let days = 7
 
-      if (trendGranularity.value === 'hour') {
+      if (currentGranularity === 'hour') {
         url += `granularity=hour`
 
         if (dateFilter.value.customRange && dateFilter.value.customRange.length === 2) {
-          const convertToUTC = (systemTzTimeStr) => {
-            const systemTz = 8
-            const [datePart, timePart] = systemTzTimeStr.split(' ')
-            const [year, month, day] = datePart.split('-').map(Number)
-            const [hours, minutes, seconds] = timePart.split(':').map(Number)
-
-            const utcDate = new Date(
-              Date.UTC(year, month - 1, day, hours - systemTz, minutes, seconds)
-            )
-            return utcDate.toISOString()
-          }
-
-          url += `&startDate=${encodeURIComponent(convertToUTC(dateFilter.value.customRange[0]))}`
-          url += `&endDate=${encodeURIComponent(convertToUTC(dateFilter.value.customRange[1]))}`
+          url += `&startDate=${encodeURIComponent(dateFilter.value.customRange[0])}`
+          url += `&endDate=${encodeURIComponent(dateFilter.value.customRange[1])}`
         } else {
           const now = new Date()
           let startTime
@@ -541,6 +567,11 @@ export const useDashboardStore = defineStore('dashboard', () => {
 
           if (dateFilter.value.type === 'preset') {
             switch (dateFilter.value.preset) {
+              case 'today': {
+                startTime = getSystemTimezoneDay(now, true)
+                endTime = getSystemTimezoneDay(now, false)
+                break
+              }
               case 'last24h': {
                 endTime = new Date(now)
                 startTime = new Date(now.getTime() - 24 * 60 * 60 * 1000)
@@ -603,110 +634,87 @@ export const useDashboardStore = defineStore('dashboard', () => {
   }
 
   // 日期筛选相关方法
-  function setDateFilterPreset(preset) {
+  function setDateFilterPreset(preset, options = {}) {
+    const { silent = false, skipSave = false } = options
+    const normalizedPreset = normalizePresetForGranularity(preset, trendGranularity.value)
+
     dateFilter.value.type = 'preset'
-    dateFilter.value.preset = preset
+    dateFilter.value.preset = normalizedPreset
 
-    // 根据预设计算并设置具体的日期范围
-    const option = dateFilter.value.presetOptions.find((opt) => opt.value === preset)
-    if (option) {
-      const now = new Date()
-      let startDate, endDate
+    const option = dateFilter.value.presetOptions.find((opt) => opt.value === normalizedPreset)
+    const now = new Date()
+    let startDate
+    let endDate
 
-      if (trendGranularity.value === 'hour') {
-        // 小时粒度的预设
-        switch (preset) {
-          case 'last24h': {
-            // 近24小时：从当前时间往前推24小时
-            endDate = new Date(now)
-            startDate = new Date(now.getTime() - 24 * 60 * 60 * 1000)
-            break
-          }
-          case 'yesterday': {
-            // 昨天：获取本地时间的昨天
-            const yesterday = new Date()
-            yesterday.setDate(yesterday.getDate() - 1)
-            // 转换为系统时区的昨天0点和23:59
-            startDate = getSystemTimezoneDay(yesterday, true)
-            endDate = getSystemTimezoneDay(yesterday, false)
-            break
-          }
-          case 'dayBefore': {
-            // 前天：获取本地时间的前天
-            const dayBefore = new Date()
-            dayBefore.setDate(dayBefore.getDate() - 2)
-            // 转换为系统时区的前天0点和23:59
-            startDate = getSystemTimezoneDay(dayBefore, true)
-            endDate = getSystemTimezoneDay(dayBefore, false)
-            break
-          }
+    if (trendGranularity.value === 'hour') {
+      switch (normalizedPreset) {
+        case 'today': {
+          startDate = getSystemTimezoneDay(now, true)
+          endDate = getSystemTimezoneDay(now, false)
+          break
         }
-      } else {
-        // 天粒度的预设
-        startDate = new Date(now)
-        endDate = new Date(now)
-
-        if (preset === 'today') {
-          // 今日：从凌晨开始
-          startDate.setHours(0, 0, 0, 0)
-          endDate.setHours(23, 59, 59, 999)
-        } else {
-          // 其他预设：按天数计算
-          startDate.setDate(now.getDate() - (option.days - 1))
-          startDate.setHours(0, 0, 0, 0)
-          endDate.setHours(23, 59, 59, 999)
+        case 'last24h': {
+          endDate = new Date(now)
+          startDate = new Date(now.getTime() - 24 * 60 * 60 * 1000)
+          break
+        }
+        case 'yesterday': {
+          const yesterday = new Date()
+          yesterday.setDate(yesterday.getDate() - 1)
+          startDate = getSystemTimezoneDay(yesterday, true)
+          endDate = getSystemTimezoneDay(yesterday, false)
+          break
+        }
+        case 'dayBefore': {
+          const dayBefore = new Date()
+          dayBefore.setDate(dayBefore.getDate() - 2)
+          startDate = getSystemTimezoneDay(dayBefore, true)
+          endDate = getSystemTimezoneDay(dayBefore, false)
+          break
+        }
+        default: {
+          endDate = new Date(now)
+          startDate = new Date(now.getTime() - 24 * 60 * 60 * 1000)
         }
       }
+    } else {
+      startDate = new Date(now)
+      endDate = new Date(now)
 
-      dateFilter.value.customStart = startDate.toISOString().split('T')[0]
-      dateFilter.value.customEnd = endDate.toISOString().split('T')[0]
-
-      // 设置 customRange 为 Element Plus 需要的格式
-      // 对于小时粒度的昨天/前天，需要特殊处理显示
-      if (trendGranularity.value === 'hour' && (preset === 'yesterday' || preset === 'dayBefore')) {
-        // 获取本地日期
-        const targetDate = new Date()
-        if (preset === 'yesterday') {
-          targetDate.setDate(targetDate.getDate() - 1)
-        } else {
-          targetDate.setDate(targetDate.getDate() - 2)
-        }
-
-        // 显示系统时区的完整一天
-        const year = targetDate.getFullYear()
-        const month = String(targetDate.getMonth() + 1).padStart(2, '0')
-        const day = String(targetDate.getDate()).padStart(2, '0')
-
-        dateFilter.value.customRange = [
-          `${year}-${month}-${day} 00:00:00`,
-          `${year}-${month}-${day} 23:59:59`
-        ]
-      } else {
-        // 其他情况：近24小时或天粒度
-        const formatDateForDisplay = (date) => {
-          // 固定使用UTC+8来显示时间
-          const systemTz = 8
-          const tzOffset = systemTz * 60 * 60 * 1000
-          const localTime = new Date(date.getTime() + tzOffset)
-
-          const year = localTime.getUTCFullYear()
-          const month = String(localTime.getUTCMonth() + 1).padStart(2, '0')
-          const day = String(localTime.getUTCDate()).padStart(2, '0')
-          const hours = String(localTime.getUTCHours()).padStart(2, '0')
-          const minutes = String(localTime.getUTCMinutes()).padStart(2, '0')
-          const seconds = String(localTime.getUTCSeconds()).padStart(2, '0')
-          return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`
-        }
-
-        dateFilter.value.customRange = [
-          formatDateForDisplay(startDate),
-          formatDateForDisplay(endDate)
-        ]
+      if (normalizedPreset === 'today') {
+        startDate.setHours(0, 0, 0, 0)
+        endDate.setHours(23, 59, 59, 999)
+      } else if (option?.days) {
+        startDate.setDate(now.getDate() - (option.days - 1))
+        startDate.setHours(0, 0, 0, 0)
+        endDate.setHours(23, 59, 59, 999)
       }
     }
 
-    // 触发数据刷新
-    refreshChartsData()
+    const formatDateForDisplay = (date) => {
+      // 使用本地时间直接格式化，避免多余的时区偏移导致日期错位
+      const localTime = new Date(date)
+      const year = localTime.getFullYear()
+      const month = String(localTime.getMonth() + 1).padStart(2, '0')
+      const day = String(localTime.getDate()).padStart(2, '0')
+      const hours = String(localTime.getHours()).padStart(2, '0')
+      const minutes = String(localTime.getMinutes()).padStart(2, '0')
+      const seconds = String(localTime.getSeconds()).padStart(2, '0')
+      return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`
+    }
+
+    dateFilter.value.customStart = startDate ? startDate.toISOString().split('T')[0] : ''
+    dateFilter.value.customEnd = endDate ? endDate.toISOString().split('T')[0] : ''
+    dateFilter.value.customRange =
+      startDate && endDate ? [formatDateForDisplay(startDate), formatDateForDisplay(endDate)] : null
+
+    if (!skipSave) {
+      persistDatePreferences(dateFilter.value.preset, trendGranularity.value)
+    }
+
+    if (!silent) {
+      refreshChartsData()
+    }
   }
 
   function onCustomDateRangeChange(value) {
@@ -751,20 +759,17 @@ export const useDashboardStore = defineStore('dashboard', () => {
       refreshChartsData()
     } else if (value === null) {
       // 清空时恢复默认
-      setDateFilterPreset(trendGranularity.value === 'hour' ? 'last24h' : '7days')
+      setDateFilterPreset(trendGranularity.value === 'hour' ? 'last24h' : defaultPreset)
     }
   }
 
-  function setTrendGranularity(granularity) {
+  function setTrendGranularity(granularity, options = {}) {
+    const { silent = false, skipSave = false, presetOverride } = options
     trendGranularity.value = granularity
 
     // 根据粒度更新预设选项
     if (granularity === 'hour') {
-      dateFilter.value.presetOptions = [
-        { value: 'last24h', label: '近24小时', hours: 24 },
-        { value: 'yesterday', label: '昨天', hours: 24 },
-        { value: 'dayBefore', label: '前天', hours: 24 }
-      ]
+      dateFilter.value.presetOptions = getPresetOptions('hour')
 
       // 检查当前自定义日期范围是否超过24小时
       if (
@@ -777,46 +782,53 @@ export const useDashboardStore = defineStore('dashboard', () => {
         const hoursDiff = (end - start) / (1000 * 60 * 60)
         if (hoursDiff > 24) {
           showToast('小时粒度下日期范围不能超过24小时，已切换到近24小时', 'warning')
-          setDateFilterPreset('last24h')
+          setDateFilterPreset('last24h', { silent, skipSave })
           return
         }
       }
-
-      // 如果当前是天粒度的预设，切换到小时粒度的默认预设
-      if (['today', '7days', '30days'].includes(dateFilter.value.preset)) {
-        setDateFilterPreset('last24h')
-        return
-      }
     } else {
       // 天粒度
-      dateFilter.value.presetOptions = [
-        { value: 'today', label: '今日', days: 1 },
-        { value: '7days', label: '7天', days: 7 },
-        { value: '30days', label: '30天', days: 30 }
-      ]
-
-      // 如果当前是小时粒度的预设，切换到天粒度的默认预设
-      if (['last24h', 'yesterday', 'dayBefore'].includes(dateFilter.value.preset)) {
-        setDateFilterPreset('7days')
-        return
-      }
+      dateFilter.value.presetOptions = getPresetOptions('day')
     }
 
-    // 触发数据刷新
-    refreshChartsData()
+    if (dateFilter.value.type === 'custom') {
+      if (!skipSave) {
+        persistDatePreferences(dateFilter.value.preset || defaultPreset, trendGranularity.value)
+      }
+
+      if (!silent) {
+        refreshChartsData()
+      }
+      return
+    }
+
+    const nextPreset =
+      presetOverride ||
+      normalizePresetForGranularity(dateFilter.value.preset, trendGranularity.value)
+
+    setDateFilterPreset(nextPreset, { silent: true, skipSave: true })
+
+    if (!skipSave) {
+      persistDatePreferences(dateFilter.value.preset, trendGranularity.value)
+    }
+
+    if (!silent) {
+      refreshChartsData()
+    }
   }
 
   async function refreshChartsData() {
     // 根据当前筛选条件刷新数据
     let days
     let modelPeriod = 'monthly'
+    const effectiveGranularity = getEffectiveGranularity()
 
     if (dateFilter.value.type === 'preset') {
       const option = dateFilter.value.presetOptions.find(
         (opt) => opt.value === dateFilter.value.preset
       )
 
-      if (trendGranularity.value === 'hour') {
+      if (effectiveGranularity === 'hour') {
         // 小时粒度
         days = 1 // 小时粒度默认查看1天的数据
         modelPeriod = 'daily' // 小时粒度使用日统计
@@ -832,7 +844,7 @@ export const useDashboardStore = defineStore('dashboard', () => {
       }
     } else {
       // 自定义日期范围
-      if (trendGranularity.value === 'hour') {
+      if (effectiveGranularity === 'hour') {
         // 小时粒度下的自定义范围，计算小时数
         const start = new Date(dateFilter.value.customRange[0])
         const end = new Date(dateFilter.value.customRange[1])
@@ -845,16 +857,16 @@ export const useDashboardStore = defineStore('dashboard', () => {
     }
 
     await Promise.all([
-      loadUsageTrend(days, trendGranularity.value),
-      loadModelStats(modelPeriod),
-      loadApiKeysTrend(apiKeysTrendMetric.value),
-      loadAccountUsageTrend(accountUsageGroup.value)
+      loadUsageTrend(days, effectiveGranularity),
+      loadModelStats(modelPeriod, effectiveGranularity),
+      loadApiKeysTrend(apiKeysTrendMetric.value, effectiveGranularity),
+      loadAccountUsageTrend(accountUsageGroup.value, effectiveGranularity)
     ])
   }
 
   function setAccountUsageGroup(group) {
     accountUsageGroup.value = group
-    return loadAccountUsageTrend(group)
+    return loadAccountUsageTrend(group, getEffectiveGranularity())
   }
 
   function calculateDaysBetween(start, end) {
@@ -870,6 +882,10 @@ export const useDashboardStore = defineStore('dashboard', () => {
     return date > new Date()
   }
 
+  // 初始化日期筛选：同步本地偏好并填充范围
+  setDateFilterPreset(dateFilter.value.preset, { silent: true, skipSave: true })
+  persistDatePreferences(dateFilter.value.preset, trendGranularity.value)
+
   return {
     // 状态
     loading,
diff --git a/web/admin-spa/src/views/ApiKeyUsageRecordsView.vue b/web/admin-spa/src/views/ApiKeyUsageRecordsView.vue
new file mode 100644
index 00000000..dcdeba48
--- /dev/null
+++ b/web/admin-spa/src/views/ApiKeyUsageRecordsView.vue
@@ -0,0 +1,549 @@
+<template>
+  <div class="space-y-4 p-4 lg:p-6">
+    <div class="flex flex-wrap items-center justify-between gap-3">
+      <div class="flex items-center gap-3">
+        <button
+          class="rounded-full border border-gray-200 px-3 py-2 text-sm text-gray-700 transition hover:bg-gray-100 dark:border-gray-700 dark:text-gray-200 dark:hover:bg-gray-800"
+          @click="goBack"
+        >
+          ← 返回
+        </button>
+        <div>
+          <p class="text-xs font-semibold uppercase tracking-wide text-blue-600 dark:text-blue-400">
+            API Key 请求详情时间线
+          </p>
+          <h2 class="text-xl font-bold text-gray-900 dark:text-gray-100">
+            {{ apiKeyDisplayName }}
+          </h2>
+          <p class="text-xs text-gray-500 dark:text-gray-400">ID: {{ keyId }}</p>
+        </div>
+      </div>
+      <div class="flex items-center gap-2 text-sm text-gray-500 dark:text-gray-400">
+        <i class="fas fa-clock text-blue-500" />
+        <span v-if="dateRangeHint">{{ dateRangeHint }}</span>
+        <span v-else>显示近 5000 条记录</span>
+      </div>
+    </div>
+
+    <div class="grid gap-3 md:grid-cols-2 xl:grid-cols-4">
+      <div
+        class="rounded-xl border border-gray-200 bg-white p-4 shadow-sm dark:border-gray-800 dark:bg-gray-900"
+      >
+        <p class="text-xs uppercase text-gray-500 dark:text-gray-400">总请求</p>
+        <p class="mt-1 text-2xl font-bold text-gray-900 dark:text-gray-100">
+          {{ formatNumber(summary.totalRequests) }}
+        </p>
+      </div>
+      <div
+        class="rounded-xl border border-gray-200 bg-white p-4 shadow-sm dark:border-gray-800 dark:bg-gray-900"
+      >
+        <p class="text-xs uppercase text-gray-500 dark:text-gray-400">总 Token</p>
+        <p class="mt-1 text-2xl font-bold text-gray-900 dark:text-gray-100">
+          {{ formatNumber(summary.totalTokens) }}
+        </p>
+      </div>
+      <div
+        class="rounded-xl border border-gray-200 bg-white p-4 shadow-sm dark:border-gray-800 dark:bg-gray-900"
+      >
+        <p class="text-xs uppercase text-gray-500 dark:text-gray-400">总费用</p>
+        <p class="mt-1 text-2xl font-bold text-yellow-600 dark:text-yellow-400">
+          {{ formatCost(summary.totalCost) }}
+        </p>
+      </div>
+      <div
+        class="rounded-xl border border-gray-200 bg-white p-4 shadow-sm dark:border-gray-800 dark:bg-gray-900"
+      >
+        <p class="text-xs uppercase text-gray-500 dark:text-gray-400">平均费用/次</p>
+        <p class="mt-1 text-2xl font-bold text-gray-900 dark:text-gray-100">
+          {{ formatCost(summary.avgCost) }}
+        </p>
+      </div>
+    </div>
+
+    <div
+      class="rounded-xl border border-gray-200 bg-white p-4 shadow-sm dark:border-gray-800 dark:bg-gray-900"
+    >
+      <div class="flex flex-wrap items-center gap-3">
+        <el-date-picker
+          v-model="filters.dateRange"
+          class="max-w-[320px]"
+          clearable
+          end-placeholder="结束时间"
+          format="YYYY-MM-DD HH:mm:ss"
+          start-placeholder="开始时间"
+          type="datetimerange"
+          unlink-panels
+          value-format="YYYY-MM-DDTHH:mm:ss[Z]"
+        />
+
+        <el-select
+          v-model="filters.model"
+          class="w-[180px]"
+          clearable
+          filterable
+          placeholder="所有模型"
+        >
+          <el-option
+            v-for="modelOption in availableModels"
+            :key="modelOption"
+            :label="modelOption"
+            :value="modelOption"
+          />
+        </el-select>
+
+        <el-select
+          v-model="filters.accountId"
+          class="w-[220px]"
+          clearable
+          filterable
+          placeholder="所有账户"
+        >
+          <el-option
+            v-for="account in availableAccounts"
+            :key="account.id"
+            :label="`${account.name}（${account.accountTypeName}）`"
+            :value="account.id"
+          />
+        </el-select>
+
+        <el-select v-model="filters.sortOrder" class="w-[140px]" placeholder="排序">
+          <el-option label="时间降序" value="desc" />
+          <el-option label="时间升序" value="asc" />
+        </el-select>
+
+        <el-button @click="resetFilters"> <i class="fas fa-undo mr-2" /> 重置 </el-button>
+        <el-button :loading="exporting" type="primary" @click="exportCsv">
+          <i class="fas fa-file-export mr-2" /> 导出 CSV
+        </el-button>
+      </div>
+    </div>
+
+    <div
+      class="rounded-xl border border-gray-200 bg-white shadow-sm dark:border-gray-800 dark:bg-gray-900"
+    >
+      <div
+        v-if="loading"
+        class="flex items-center justify-center p-10 text-gray-500 dark:text-gray-400"
+      >
+        <i class="fas fa-spinner fa-spin mr-2" /> 加载中...
+      </div>
+      <div v-else>
+        <div
+          v-if="records.length === 0"
+          class="flex flex-col items-center gap-2 p-10 text-gray-500 dark:text-gray-400"
+        >
+          <i class="fas fa-inbox text-2xl" />
+          <p>暂无记录</p>
+        </div>
+        <div v-else class="space-y-4">
+          <div class="hidden overflow-x-auto md:block">
+            <table class="min-w-full divide-y divide-gray-200 dark:divide-gray-800">
+              <thead class="bg-gray-50 dark:bg-gray-800">
+                <tr>
+                  <th
+                    class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-gray-300"
+                  >
+                    时间
+                  </th>
+                  <th
+                    class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-gray-300"
+                  >
+                    账户
+                  </th>
+                  <th
+                    class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-gray-300"
+                  >
+                    模型
+                  </th>
+                  <th
+                    class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-gray-300"
+                  >
+                    输入
+                  </th>
+                  <th
+                    class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-gray-300"
+                  >
+                    输出
+                  </th>
+                  <th
+                    class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-gray-300"
+                  >
+                    缓存(创/读)
+                  </th>
+                  <th
+                    class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-gray-300"
+                  >
+                    总 Token
+                  </th>
+                  <th
+                    class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-gray-300"
+                  >
+                    费用
+                  </th>
+                  <th
+                    class="px-4 py-3 text-right text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-gray-300"
+                  >
+                    操作
+                  </th>
+                </tr>
+              </thead>
+              <tbody
+                class="divide-y divide-gray-200 bg-white dark:divide-gray-800 dark:bg-gray-900"
+              >
+                <tr v-for="record in records" :key="record.timestamp + record.model">
+                  <td class="whitespace-nowrap px-4 py-3 text-sm text-gray-800 dark:text-gray-100">
+                    {{ formatDate(record.timestamp) }}
+                  </td>
+                  <td class="px-4 py-3 text-sm text-gray-800 dark:text-gray-100">
+                    <div class="flex flex-col">
+                      <span class="font-semibold">{{ record.accountName || '未知账户' }}</span>
+                      <span class="text-xs text-gray-500 dark:text-gray-400">
+                        {{ record.accountTypeName || '未知渠道' }}
+                      </span>
+                    </div>
+                  </td>
+                  <td class="whitespace-nowrap px-4 py-3 text-sm text-gray-800 dark:text-gray-100">
+                    {{ record.model }}
+                  </td>
+                  <td class="whitespace-nowrap px-4 py-3 text-sm text-blue-600 dark:text-blue-400">
+                    {{ formatNumber(record.inputTokens) }}
+                  </td>
+                  <td
+                    class="whitespace-nowrap px-4 py-3 text-sm text-green-600 dark:text-green-400"
+                  >
+                    {{ formatNumber(record.outputTokens) }}
+                  </td>
+                  <td
+                    class="whitespace-nowrap px-4 py-3 text-sm text-purple-600 dark:text-purple-400"
+                  >
+                    {{ formatNumber(record.cacheCreateTokens) }} /
+                    {{ formatNumber(record.cacheReadTokens) }}
+                  </td>
+                  <td class="whitespace-nowrap px-4 py-3 text-sm text-gray-800 dark:text-gray-100">
+                    {{ formatNumber(record.totalTokens) }}
+                  </td>
+                  <td
+                    class="whitespace-nowrap px-4 py-3 text-sm text-yellow-600 dark:text-yellow-400"
+                  >
+                    {{ record.costFormatted || formatCost(record.cost) }}
+                  </td>
+                  <td class="whitespace-nowrap px-4 py-3 text-right text-sm">
+                    <el-button size="small" @click="openDetail(record)">详情</el-button>
+                  </td>
+                </tr>
+              </tbody>
+            </table>
+          </div>
+
+          <div class="space-y-3 md:hidden">
+            <div
+              v-for="record in records"
+              :key="record.timestamp + record.model"
+              class="rounded-lg border border-gray-200 bg-white p-4 shadow-sm dark:border-gray-800 dark:bg-gray-900"
+            >
+              <div class="flex items-center justify-between">
+                <div>
+                  <p class="text-sm font-semibold text-gray-900 dark:text-gray-100">
+                    {{ record.accountName || '未知账户' }}
+                  </p>
+                  <p class="text-xs text-gray-500 dark:text-gray-400">
+                    {{ formatDate(record.timestamp) }}
+                  </p>
+                </div>
+                <el-button size="small" @click="openDetail(record)">详情</el-button>
+              </div>
+              <div class="mt-3 grid grid-cols-2 gap-2 text-sm text-gray-700 dark:text-gray-300">
+                <div>模型：{{ record.model }}</div>
+                <div>总 Token：{{ formatNumber(record.totalTokens) }}</div>
+                <div>输入：{{ formatNumber(record.inputTokens) }}</div>
+                <div>输出：{{ formatNumber(record.outputTokens) }}</div>
+                <div>
+                  缓存创/读：{{ formatNumber(record.cacheCreateTokens) }} /
+                  {{ formatNumber(record.cacheReadTokens) }}
+                </div>
+                <div class="text-yellow-600 dark:text-yellow-400">
+                  费用：{{ record.costFormatted || formatCost(record.cost) }}
+                </div>
+              </div>
+            </div>
+          </div>
+
+          <div class="flex items-center justify-between px-4 pb-4">
+            <div class="text-sm text-gray-500 dark:text-gray-400">
+              共 {{ pagination.totalRecords }} 条记录
+            </div>
+            <el-pagination
+              background
+              :current-page="pagination.currentPage"
+              layout="prev, pager, next, sizes"
+              :page-size="pagination.pageSize"
+              :page-sizes="[20, 50, 100, 200]"
+              :total="pagination.totalRecords"
+              @current-change="handlePageChange"
+              @size-change="handleSizeChange"
+            />
+          </div>
+        </div>
+      </div>
+    </div>
+
+    <RecordDetailModal :record="activeRecord" :show="detailVisible" @close="closeDetail" />
+  </div>
+</template>
+
+<script setup>
+import { computed, onMounted, reactive, ref, watch } from 'vue'
+import dayjs from 'dayjs'
+import { useRoute, useRouter } from 'vue-router'
+import { apiClient } from '@/config/api'
+import { showToast } from '@/utils/toast'
+import { formatNumber } from '@/utils/format'
+import RecordDetailModal from '@/components/apikeys/RecordDetailModal.vue'
+
+const route = useRoute()
+const router = useRouter()
+
+const keyId = computed(() => route.params.keyId)
+const loading = ref(false)
+const exporting = ref(false)
+const records = ref([])
+const availableModels = ref([])
+const availableAccounts = ref([])
+
+const pagination = reactive({
+  currentPage: 1,
+  pageSize: 50,
+  totalRecords: 0
+})
+
+const filters = reactive({
+  dateRange: null,
+  model: '',
+  accountId: '',
+  sortOrder: 'desc'
+})
+
+const summary = reactive({
+  totalRequests: 0,
+  totalTokens: 0,
+  totalCost: 0,
+  avgCost: 0
+})
+
+const apiKeyInfo = reactive({
+  id: keyId.value,
+  name: ''
+})
+
+const detailVisible = ref(false)
+const activeRecord = ref(null)
+
+const apiKeyDisplayName = computed(() => apiKeyInfo.name || apiKeyInfo.id || keyId.value)
+
+const dateRangeHint = computed(() => {
+  if (!filters.dateRange || filters.dateRange.length !== 2) return ''
+  return `${formatDate(filters.dateRange[0])} ~ ${formatDate(filters.dateRange[1])}`
+})
+
+const formatDate = (value) => {
+  if (!value) return '--'
+  return dayjs(value).format('YYYY-MM-DD HH:mm:ss')
+}
+
+const formatCost = (value) => {
+  const num = typeof value === 'number' ? value : 0
+  if (num >= 1) return `$${num.toFixed(2)}`
+  if (num >= 0.001) return `$${num.toFixed(4)}`
+  return `$${num.toFixed(6)}`
+}
+
+const buildParams = (page) => {
+  const params = {
+    page,
+    pageSize: pagination.pageSize,
+    sortOrder: filters.sortOrder
+  }
+
+  if (filters.model) params.model = filters.model
+  if (filters.accountId) params.accountId = filters.accountId
+  if (filters.dateRange && filters.dateRange.length === 2) {
+    params.startDate = dayjs(filters.dateRange[0]).toISOString()
+    params.endDate = dayjs(filters.dateRange[1]).toISOString()
+  }
+
+  return params
+}
+
+const syncResponseState = (data) => {
+  records.value = data.records || []
+
+  const pageInfo = data.pagination || {}
+  pagination.currentPage = pageInfo.currentPage || 1
+  pagination.pageSize = pageInfo.pageSize || pagination.pageSize
+  pagination.totalRecords = pageInfo.totalRecords || 0
+
+  const filterEcho = data.filters || {}
+  if (filterEcho.model !== undefined) filters.model = filterEcho.model || ''
+  if (filterEcho.accountId !== undefined) filters.accountId = filterEcho.accountId || ''
+  if (filterEcho.sortOrder) filters.sortOrder = filterEcho.sortOrder
+  if (filterEcho.startDate && filterEcho.endDate) {
+    const nextRange = [filterEcho.startDate, filterEcho.endDate]
+    const currentRange = filters.dateRange || []
+    if (currentRange[0] !== nextRange[0] || currentRange[1] !== nextRange[1]) {
+      filters.dateRange = nextRange
+    }
+  }
+
+  const summaryData = data.summary || {}
+  summary.totalRequests = summaryData.totalRequests || 0
+  summary.totalTokens = summaryData.totalTokens || 0
+  summary.totalCost = summaryData.totalCost || 0
+  summary.avgCost = summaryData.avgCost || 0
+
+  apiKeyInfo.id = data.apiKeyInfo?.id || keyId.value
+  apiKeyInfo.name = data.apiKeyInfo?.name || ''
+
+  availableModels.value = data.availableFilters?.models || []
+  availableAccounts.value = data.availableFilters?.accounts || []
+}
+
+const fetchRecords = async (page = pagination.currentPage) => {
+  loading.value = true
+  try {
+    const response = await apiClient.get(`/admin/api-keys/${keyId.value}/usage-records`, {
+      params: buildParams(page)
+    })
+    syncResponseState(response.data || {})
+  } catch (error) {
+    showToast(`加载请求记录失败：${error.message || '未知错误'}`, 'error')
+  } finally {
+    loading.value = false
+  }
+}
+
+const handlePageChange = (page) => {
+  pagination.currentPage = page
+  fetchRecords(page)
+}
+
+const handleSizeChange = (size) => {
+  pagination.pageSize = size
+  pagination.currentPage = 1
+  fetchRecords(1)
+}
+
+const resetFilters = () => {
+  filters.model = ''
+  filters.accountId = ''
+  filters.dateRange = null
+  filters.sortOrder = 'desc'
+  pagination.currentPage = 1
+  fetchRecords(1)
+}
+
+const openDetail = (record) => {
+  activeRecord.value = record
+  detailVisible.value = true
+}
+
+const closeDetail = () => {
+  detailVisible.value = false
+  activeRecord.value = null
+}
+
+const goBack = () => {
+  router.push('/api-keys')
+}
+
+const exportCsv = async () => {
+  if (exporting.value) return
+  exporting.value = true
+  try {
+    const aggregated = []
+    let page = 1
+    let totalPages = 1
+    const maxPages = 50 // 50 * 200 = 10000，超过后端 5000 上限已足够
+
+    while (page <= totalPages && page <= maxPages) {
+      const response = await apiClient.get(`/admin/api-keys/${keyId.value}/usage-records`, {
+        params: { ...buildParams(page), pageSize: 200 }
+      })
+      const payload = response.data || {}
+      aggregated.push(...(payload.records || []))
+      totalPages = payload.pagination?.totalPages || 1
+      page += 1
+    }
+
+    if (aggregated.length === 0) {
+      showToast('没有可导出的记录', 'info')
+      return
+    }
+
+    const headers = [
+      '时间',
+      '账户',
+      '渠道',
+      '模型',
+      '输入Token',
+      '输出Token',
+      '缓存创建Token',
+      '缓存读取Token',
+      '总Token',
+      '费用'
+    ]
+
+    const csvRows = [headers.join(',')]
+    aggregated.forEach((record) => {
+      const row = [
+        formatDate(record.timestamp),
+        record.accountName || '',
+        record.accountTypeName || '',
+        record.model || '',
+        record.inputTokens || 0,
+        record.outputTokens || 0,
+        record.cacheCreateTokens || 0,
+        record.cacheReadTokens || 0,
+        record.totalTokens || 0,
+        record.costFormatted || formatCost(record.cost)
+      ]
+      csvRows.push(row.map((cell) => `"${String(cell).replace(/"/g, '""')}"`).join(','))
+    })
+
+    const blob = new Blob([csvRows.join('\n')], {
+      type: 'text/csv;charset=utf-8;'
+    })
+    const url = URL.createObjectURL(blob)
+    const link = document.createElement('a')
+    link.href = url
+    link.download = `api-key-${keyId.value}-usage-records.csv`
+    link.click()
+    URL.revokeObjectURL(url)
+    showToast('导出 CSV 成功', 'success')
+  } catch (error) {
+    showToast(`导出失败：${error.message || '未知错误'}`, 'error')
+  } finally {
+    exporting.value = false
+  }
+}
+
+watch(
+  () => [filters.model, filters.accountId, filters.sortOrder],
+  () => {
+    pagination.currentPage = 1
+    fetchRecords(1)
+  }
+)
+
+watch(
+  () => filters.dateRange,
+  () => {
+    pagination.currentPage = 1
+    fetchRecords(1)
+  },
+  { deep: true }
+)
+
+onMounted(() => {
+  fetchRecords()
+})
+</script>
diff --git a/web/admin-spa/src/views/ApiKeysView.vue b/web/admin-spa/src/views/ApiKeysView.vue
index 507fd392..a5c082cb 100644
--- a/web/admin-spa/src/views/ApiKeysView.vue
+++ b/web/admin-spa/src/views/ApiKeysView.vue
@@ -2085,17 +2085,18 @@
       @save="handleSaveExpiry"
     />
 
-    <!-- 使用详情弹窗 -->
     <UsageDetailModal
       :api-key="selectedApiKeyForDetail || {}"
       :show="showUsageDetailModal"
       @close="showUsageDetailModal = false"
+      @open-timeline="openTimeline"
     />
   </div>
 </template>
 
 <script setup>
 import { ref, reactive, computed, onMounted, onUnmounted, watch } from 'vue'
+import { useRouter } from 'vue-router'
 import { showToast } from '@/utils/toast'
 import { apiClient } from '@/config/api'
 import { useClientsStore } from '@/stores/clients'
@@ -2114,6 +2115,7 @@ import CustomDropdown from '@/components/common/CustomDropdown.vue'
 import ActionDropdown from '@/components/common/ActionDropdown.vue'
 
 // 响应式数据
+const router = useRouter()
 const clientsStore = useClientsStore()
 const authStore = useAuthStore()
 const apiKeys = ref([])
@@ -4193,19 +4195,15 @@ const formatWindowTime = (seconds) => {
 
 // 显示使用详情
 const showUsageDetails = (apiKey) => {
-  // 获取异步加载的统计数据
   const cachedStats = getCachedStats(apiKey.id)
 
-  // 合并异步统计数据到 apiKey 对象
   const enrichedApiKey = {
     ...apiKey,
-    // 合并实时限制数据
     dailyCost: cachedStats?.dailyCost ?? apiKey.dailyCost ?? 0,
     currentWindowCost: cachedStats?.currentWindowCost ?? apiKey.currentWindowCost ?? 0,
     windowRemainingSeconds: cachedStats?.windowRemainingSeconds ?? apiKey.windowRemainingSeconds,
     windowStartTime: cachedStats?.windowStartTime ?? apiKey.windowStartTime ?? null,
     windowEndTime: cachedStats?.windowEndTime ?? apiKey.windowEndTime ?? null,
-    // 合并 usage 数据（用于详情弹窗中的统计卡片）
     usage: {
       ...apiKey.usage,
       total: {
@@ -4226,6 +4224,13 @@ const showUsageDetails = (apiKey) => {
   showUsageDetailModal.value = true
 }
 
+const openTimeline = (keyId) => {
+  const id = keyId || selectedApiKeyForDetail.value?.id
+  if (!id) return
+  showUsageDetailModal.value = false
+  router.push(`/api-keys/${id}/usage-records`)
+}
+
 // 格式化时间（秒转换为可读格式） - 已移到 WindowLimitBar 组件中
 // const formatTime = (seconds) => {
 //   if (seconds === null || seconds === undefined) return '--:--'
diff --git a/web/admin-spa/src/views/DashboardView.vue b/web/admin-spa/src/views/DashboardView.vue
index 61ac8124..84d60d27 100644
--- a/web/admin-spa/src/views/DashboardView.vue
+++ b/web/admin-spa/src/views/DashboardView.vue
@@ -1036,6 +1036,7 @@ function createUsageTrendChart() {
           type: 'linear',
           display: true,
           position: 'left',
+          min: 0,
           title: {
             display: true,
             text: 'Token数量',
@@ -1055,6 +1056,7 @@ function createUsageTrendChart() {
           type: 'linear',
           display: true,
           position: 'right',
+          min: 0,
           title: {
             display: true,
             text: '请求数',
@@ -1073,7 +1075,8 @@ function createUsageTrendChart() {
         y2: {
           type: 'linear',
           display: false, // 隐藏费用轴，在tooltip中显示
-          position: 'right'
+          position: 'right',
+          min: 0
         }
       }
     }
@@ -1253,6 +1256,7 @@ function createApiKeysUsageTrendChart() {
         },
         y: {
           beginAtZero: true,
+          min: 0,
           title: {
             display: true,
             text: apiKeysTrendMetric.value === 'tokens' ? 'Token 数量' : '请求次数',
@@ -1428,6 +1432,7 @@ function createAccountUsageTrendChart() {
         },
         y: {
           beginAtZero: true,
+          min: 0,
           title: {
             display: true,
             text: '消耗金额 (USD)',