diff --git a/backend/internal/repository/account_repo.go b/backend/internal/repository/account_repo.go
index fe6053ee..1908dd61 100644
--- a/backend/internal/repository/account_repo.go
+++ b/backend/internal/repository/account_repo.go
@@ -186,7 +186,7 @@ func (r *accountRepository) BatchUpdateLastUsed(ctx context.Context, updates map
 		ids = append(ids, id)
 	}
 
-	caseSql += " END WHERE id IN ?"
+	caseSql += " END WHERE id IN ? AND deleted_at IS NULL"
 	args = append(args, ids)
 
 	return r.db.WithContext(ctx).Exec(caseSql, args...).Error
diff --git a/backend/internal/repository/proxy_repo.go b/backend/internal/repository/proxy_repo.go
index 423584fb..ea0577c0 100644
--- a/backend/internal/repository/proxy_repo.go
+++ b/backend/internal/repository/proxy_repo.go
@@ -119,6 +119,7 @@ func (r *proxyRepository) CountAccountsByProxyID(ctx context.Context, proxyID in
 	var count int64
 	err := r.db.WithContext(ctx).Table("accounts").
 		Where("proxy_id = ?", proxyID).
+		Where("deleted_at IS NULL").
 		Count(&count).Error
 	return count, err
 }
@@ -134,6 +135,7 @@ func (r *proxyRepository) GetAccountCountsForProxies(ctx context.Context) (map[i
 		Table("accounts").
 		Select("proxy_id, COUNT(*) as count").
 		Where("proxy_id IS NOT NULL").
+		Where("deleted_at IS NULL").
 		Group("proxy_id").
 		Scan(&results).Error
 	if err != nil {
diff --git a/backend/internal/repository/usage_log_repo.go b/backend/internal/repository/usage_log_repo.go
index 84c44a91..5ee84877 100644
--- a/backend/internal/repository/usage_log_repo.go
+++ b/backend/internal/repository/usage_log_repo.go
@@ -182,6 +182,7 @@ func (r *usageLogRepository) GetDashboardStats(ctx context.Context) (*DashboardS
 			COUNT(CASE WHEN rate_limited_at IS NOT NULL AND rate_limit_reset_at > ? THEN 1 END) as ratelimit_accounts,
 			COUNT(CASE WHEN overload_until IS NOT NULL AND overload_until > ? THEN 1 END) as overload_accounts
 		FROM accounts
+		WHERE deleted_at IS NULL
 	`, service.StatusActive, service.StatusError, now, now).Scan(&accountStats).Error; err != nil {
 		return nil, err
 	}
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 5267ad67..6563ee0c 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -12,13 +12,16 @@
         "axios": "^1.6.2",
         "chart.js": "^4.4.1",
         "driver.js": "^1.4.0",
+        "file-saver": "^2.0.5",
         "pinia": "^2.1.7",
         "vue": "^3.4.0",
         "vue-chartjs": "^5.3.0",
         "vue-i18n": "^9.14.5",
-        "vue-router": "^4.2.5"
+        "vue-router": "^4.2.5",
+        "xlsx": "^0.18.5"
       },
       "devDependencies": {
+        "@types/file-saver": "^2.0.7",
         "@types/node": "^20.10.5",
         "@vitejs/plugin-vue": "^5.2.3",
         "autoprefixer": "^10.4.16",
@@ -936,6 +939,13 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/file-saver": {
+      "version": "2.0.7",
+      "resolved": "https://registry.npmmirror.com/@types/file-saver/-/file-saver-2.0.7.tgz",
+      "integrity": "sha512-dNKVfHd/jk0SkR/exKGj2ggkB45MAkzvWCaqLUUgkyjITkGNzH8H+yUwr+BLJUBjZOe9w8X3wgmXhZDRg1ED6A==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/node": {
       "version": "20.19.27",
       "resolved": "https://registry.npmmirror.com/@types/node/-/node-20.19.27.tgz",
@@ -1173,6 +1183,15 @@
         "url": "https://github.com/sponsors/antfu"
       }
     },
+    "node_modules/adler-32": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmmirror.com/adler-32/-/adler-32-1.3.1.tgz",
+      "integrity": "sha512-ynZ4w/nUUv5rrsR8UUGoe1VC9hZj6V5hU9Qw1HlMDJGEJw5S7TfTErWTjMys6M7vr0YWcPqs3qAr4ss0nDfP+A==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/alien-signals": {
       "version": "1.0.13",
       "resolved": "https://registry.npmmirror.com/alien-signals/-/alien-signals-1.0.13.tgz",
@@ -1406,6 +1425,19 @@
       ],
       "license": "CC-BY-4.0"
     },
+    "node_modules/cfb": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmmirror.com/cfb/-/cfb-1.2.2.tgz",
+      "integrity": "sha512-KfdUZsSOw19/ObEWasvBP/Ac4reZvAGauZhs6S/gqNhXhI7cKwvlH7ulj+dOEYnca4bm4SGo8C1bTAQvnTjgQA==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "adler-32": "~1.3.0",
+        "crc-32": "~1.2.0"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/chart.js": {
       "version": "4.5.1",
       "resolved": "https://registry.npmmirror.com/chart.js/-/chart.js-4.5.1.tgz",
@@ -1456,6 +1488,15 @@
         "node": ">= 6"
       }
     },
+    "node_modules/codepage": {
+      "version": "1.15.0",
+      "resolved": "https://registry.npmmirror.com/codepage/-/codepage-1.15.0.tgz",
+      "integrity": "sha512-3g6NUTPd/YtuuGrhMnOMRjFc+LJw/bnMp3+0r/Wcz3IXUuCosKRJvMphm5+Q+bvTVGcJJuRvVLuYba+WojaFaA==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/combined-stream": {
       "version": "1.0.8",
       "resolved": "https://registry.npmmirror.com/combined-stream/-/combined-stream-1.0.8.tgz",
@@ -1478,6 +1519,18 @@
         "node": ">= 6"
       }
     },
+    "node_modules/crc-32": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmmirror.com/crc-32/-/crc-32-1.2.2.tgz",
+      "integrity": "sha512-ROmzCKrTnOwybPcJApAA6WBWij23HVfGVNKqqrZpuyZOHqK2CwHSvpGuyt/UNNvaIjEd8X5IFGp4Mh+Ie1IHJQ==",
+      "license": "Apache-2.0",
+      "bin": {
+        "crc32": "bin/crc32.njs"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/cssesc": {
       "version": "3.0.0",
       "resolved": "https://registry.npmmirror.com/cssesc/-/cssesc-3.0.0.tgz",
@@ -1504,15 +1557,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/deep-is": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/deep-is/-/deep-is-0.1.4.tgz",
-      "integrity": "sha512-oIPzksmTg4/MriiaYGO+okXDT7ztn/w3Eptv/+gSIdMdKsJo0u4CfYNFJPy+4SKMuCqGw2wxnA+URMg3t8a/bQ==",
-      "dev": true,
-      "license": "MIT",
-      "optional": true,
-      "peer": true
-    },
     "node_modules/delayed-stream": {
       "version": "1.0.0",
       "resolved": "https://registry.npmmirror.com/delayed-stream/-/delayed-stream-1.0.0.tgz",
@@ -1705,15 +1749,6 @@
         "node": ">= 6"
       }
     },
-    "node_modules/fast-levenshtein": {
-      "version": "2.0.6",
-      "resolved": "https://registry.npmjs.org/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz",
-      "integrity": "sha512-DCXu6Ifhqcks7TZKY3Hxp3y6qphY5SJZmrWMDrKcERSOXWQdMhU9Ig/PYrzyw/ul9jOIyh0N4M0tbC5hodg8dw==",
-      "dev": true,
-      "license": "MIT",
-      "optional": true,
-      "peer": true
-    },
     "node_modules/fastq": {
       "version": "1.19.1",
       "resolved": "https://registry.npmmirror.com/fastq/-/fastq-1.19.1.tgz",
@@ -1724,6 +1759,12 @@
         "reusify": "^1.0.4"
       }
     },
+    "node_modules/file-saver": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmmirror.com/file-saver/-/file-saver-2.0.5.tgz",
+      "integrity": "sha512-P9bmyZ3h/PRG+Nzga+rbdI4OEpNDzAVyy74uVO9ATgzLK6VtAsYybF/+TOCvrc0MO793d6+42lLyZTw7/ArVzA==",
+      "license": "MIT"
+    },
     "node_modules/fill-range": {
       "version": "7.1.1",
       "resolved": "https://registry.npmmirror.com/fill-range/-/fill-range-7.1.1.tgz",
@@ -1773,6 +1814,15 @@
         "node": ">= 6"
       }
     },
+    "node_modules/frac": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmmirror.com/frac/-/frac-1.1.2.tgz",
+      "integrity": "sha512-w/XBfkibaTl3YDqASwfDUqkna4Z2p9cFSr1aHDt0WoMTECnRfBOv2WArlZILlqgWlmdIlALXGpM2AOhEk5W3IA==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/fraction.js": {
       "version": "5.3.4",
       "resolved": "https://registry.npmmirror.com/fraction.js/-/fraction.js-5.3.4.tgz",
@@ -2001,22 +2051,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/levn": {
-      "version": "0.4.1",
-      "resolved": "https://registry.npmjs.org/levn/-/levn-0.4.1.tgz",
-      "integrity": "sha512-+bT2uH4E5LGE7h/n3evcS/sQlJXCpIp6ym8OWJ5eV6+67Dsql/LaaT7qJBAt2rzfoa/5QBGBhxDix1dMt2kQKQ==",
-      "dev": true,
-      "license": "MIT",
-      "optional": true,
-      "peer": true,
-      "dependencies": {
-        "prelude-ls": "^1.2.1",
-        "type-check": "~0.4.0"
-      },
-      "engines": {
-        "node": ">= 0.8.0"
-      }
-    },
     "node_modules/lilconfig": {
       "version": "3.1.3",
       "resolved": "https://registry.npmmirror.com/lilconfig/-/lilconfig-3.1.3.tgz",
@@ -2207,26 +2241,6 @@
         "node": ">= 6"
       }
     },
-    "node_modules/optionator": {
-      "version": "0.9.4",
-      "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.9.4.tgz",
-      "integrity": "sha512-6IpQ7mKUxRcZNLIObR0hz7lxsapSSIYNZJwXPGeF0mTVqGKFIXj1DQcMoT22S3ROcLyY/rz0PWaWZ9ayWmad9g==",
-      "dev": true,
-      "license": "MIT",
-      "optional": true,
-      "peer": true,
-      "dependencies": {
-        "deep-is": "^0.1.3",
-        "fast-levenshtein": "^2.0.6",
-        "levn": "^0.4.1",
-        "prelude-ls": "^1.2.1",
-        "type-check": "^0.4.0",
-        "word-wrap": "^1.2.5"
-      },
-      "engines": {
-        "node": ">= 0.8.0"
-      }
-    },
     "node_modules/path-browserify": {
       "version": "1.0.1",
       "resolved": "https://registry.npmmirror.com/path-browserify/-/path-browserify-1.0.1.tgz",
@@ -2477,18 +2491,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/prelude-ls": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/prelude-ls/-/prelude-ls-1.2.1.tgz",
-      "integrity": "sha512-vkcDPrRZo1QZLbn5RLGPpg/WmIQ65qoWWhcGKf/b5eplkkarX0m9z8ppCat4mlOqUsWpyNuYgO3VRyrYHSzX5g==",
-      "dev": true,
-      "license": "MIT",
-      "optional": true,
-      "peer": true,
-      "engines": {
-        "node": ">= 0.8.0"
-      }
-    },
     "node_modules/proxy-from-env": {
       "version": "1.1.0",
       "resolved": "https://registry.npmmirror.com/proxy-from-env/-/proxy-from-env-1.1.0.tgz",
@@ -2646,6 +2648,18 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/ssf": {
+      "version": "0.11.2",
+      "resolved": "https://registry.npmmirror.com/ssf/-/ssf-0.11.2.tgz",
+      "integrity": "sha512-+idbmIXoYET47hH+d7dfm2epdOMUDjqcB4648sTZ+t2JwoyBFL/insLfB/racrDmsKB3diwsDA696pZMieAC5g==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "frac": "~1.1.2"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/strip-ansi": {
       "version": "7.1.2",
       "resolved": "https://registry.npmmirror.com/strip-ansi/-/strip-ansi-7.1.2.tgz",
@@ -2834,21 +2848,6 @@
       "dev": true,
       "license": "Apache-2.0"
     },
-    "node_modules/type-check": {
-      "version": "0.4.0",
-      "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
-      "integrity": "sha512-XleUoc9uwGXqjWwXaUTZAmzMcFZ5858QA2vvx1Ur5xIcixXIP+8LnFDgRplU30us6teqdlskFfu+ae4K79Ooew==",
-      "dev": true,
-      "license": "MIT",
-      "optional": true,
-      "peer": true,
-      "dependencies": {
-        "prelude-ls": "^1.2.1"
-      },
-      "engines": {
-        "node": ">= 0.8.0"
-      }
-    },
     "node_modules/typescript": {
       "version": "5.6.3",
       "resolved": "https://registry.npmmirror.com/typescript/-/typescript-5.6.3.tgz",
@@ -3202,16 +3201,43 @@
         "typescript": ">=5.0.0"
       }
     },
-    "node_modules/word-wrap": {
-      "version": "1.2.5",
-      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.5.tgz",
-      "integrity": "sha512-BN22B5eaMMI9UMtjrGd5g5eCYPpCPDUy0FJXbYsaT5zYxjFOckS53SQDE3pWkVoWpHXVb3BrYcEN4Twa55B5cA==",
-      "dev": true,
-      "license": "MIT",
-      "optional": true,
-      "peer": true,
+    "node_modules/wmf": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmmirror.com/wmf/-/wmf-1.0.2.tgz",
+      "integrity": "sha512-/p9K7bEh0Dj6WbXg4JG0xvLQmIadrner1bi45VMJTfnbVHsc7yIajZyoSoK60/dtVBs12Fm6WkUI5/3WAVsNMw==",
+      "license": "Apache-2.0",
       "engines": {
-        "node": ">=0.10.0"
+        "node": ">=0.8"
+      }
+    },
+    "node_modules/word": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmmirror.com/word/-/word-0.3.0.tgz",
+      "integrity": "sha512-OELeY0Q61OXpdUfTp+oweA/vtLVg5VDOXh+3he3PNzLGG/y0oylSOC1xRVj0+l4vQ3tj/bB1HVHv1ocXkQceFA==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
+    "node_modules/xlsx": {
+      "version": "0.18.5",
+      "resolved": "https://registry.npmmirror.com/xlsx/-/xlsx-0.18.5.tgz",
+      "integrity": "sha512-dmg3LCjBPHZnQp5/F/+nnTa+miPJxUXB6vtk42YjBBKayDNagxGEeIdWApkYPOf3Z3pm3k62Knjzp7lMeTEtFQ==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "adler-32": "~1.3.0",
+        "cfb": "~1.2.1",
+        "codepage": "~1.15.0",
+        "crc-32": "~1.2.1",
+        "ssf": "~0.11.2",
+        "wmf": "~1.0.1",
+        "word": "~0.3.0"
+      },
+      "bin": {
+        "xlsx": "bin/xlsx.njs"
+      },
+      "engines": {
+        "node": ">=0.8"
       }
     }
   }
diff --git a/frontend/package.json b/frontend/package.json
index 2713c0f1..e4c047d5 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -15,13 +15,16 @@
     "axios": "^1.6.2",
     "chart.js": "^4.4.1",
     "driver.js": "^1.4.0",
+    "file-saver": "^2.0.5",
     "pinia": "^2.1.7",
     "vue": "^3.4.0",
     "vue-chartjs": "^5.3.0",
     "vue-i18n": "^9.14.5",
-    "vue-router": "^4.2.5"
+    "vue-router": "^4.2.5",
+    "xlsx": "^0.18.5"
   },
   "devDependencies": {
+    "@types/file-saver": "^2.0.7",
     "@types/node": "^20.10.5",
     "@vitejs/plugin-vue": "^5.2.3",
     "autoprefixer": "^10.4.16",
diff --git a/frontend/src/components/account/AccountTestModal.vue b/frontend/src/components/account/AccountTestModal.vue
index 44befcdf..6424cbe4 100644
--- a/frontend/src/components/account/AccountTestModal.vue
+++ b/frontend/src/components/account/AccountTestModal.vue
@@ -362,6 +362,10 @@ const resetState = () => {
 }
 
 const handleClose = () => {
+  // 防止在连接测试进行中关闭对话框
+  if (status.value === 'connecting') {
+    return
+  }
   closeEventSource()
   emit('close')
 }
diff --git a/frontend/src/components/account/CreateAccountModal.vue b/frontend/src/components/account/CreateAccountModal.vue
index 247c87f2..416f27a0 100644
--- a/frontend/src/components/account/CreateAccountModal.vue
+++ b/frontend/src/components/account/CreateAccountModal.vue
@@ -2,7 +2,7 @@
   <BaseDialog
     :show="show"
     :title="t('admin.accounts.createAccount')"
-    width="wide"
+    width="normal"
     @close="handleClose"
   >
     <!-- Step Indicator for OAuth accounts -->
diff --git a/frontend/src/components/account/EditAccountModal.vue b/frontend/src/components/account/EditAccountModal.vue
index 82daf6b9..5badf512 100644
--- a/frontend/src/components/account/EditAccountModal.vue
+++ b/frontend/src/components/account/EditAccountModal.vue
@@ -2,7 +2,7 @@
   <BaseDialog
     :show="show"
     :title="t('admin.accounts.editAccount')"
-    width="wide"
+    width="normal"
     @close="handleClose"
   >
     <form
diff --git a/frontend/src/components/account/ReAuthAccountModal.vue b/frontend/src/components/account/ReAuthAccountModal.vue
index ab983e26..63769fe8 100644
--- a/frontend/src/components/account/ReAuthAccountModal.vue
+++ b/frontend/src/components/account/ReAuthAccountModal.vue
@@ -2,7 +2,7 @@
   <BaseDialog
     :show="show"
     :title="t('admin.accounts.reAuthorizeAccount')"
-    width="wide"
+    width="normal"
     @close="handleClose"
   >
     <div v-if="account" class="space-y-4">
diff --git a/frontend/src/components/account/SyncFromCrsModal.vue b/frontend/src/components/account/SyncFromCrsModal.vue
index 5c3349b0..4bd0320a 100644
--- a/frontend/src/components/account/SyncFromCrsModal.vue
+++ b/frontend/src/components/account/SyncFromCrsModal.vue
@@ -151,6 +151,10 @@ watch(
 )
 
 const handleClose = () => {
+  // 防止在同步进行中关闭对话框
+  if (syncing.value) {
+    return
+  }
   emit('close')
 }
 
diff --git a/frontend/src/components/common/BaseDialog.vue b/frontend/src/components/common/BaseDialog.vue
index 73374ac4..fab48fe0 100644
--- a/frontend/src/components/common/BaseDialog.vue
+++ b/frontend/src/components/common/BaseDialog.vue
@@ -1,53 +1,63 @@
 <template>
   <Teleport to="body">
-    <div
-      v-if="show"
-      class="modal-overlay"
-      aria-labelledby="modal-title"
-      role="dialog"
-      aria-modal="true"
-      @click.self="handleClose"
-    >
-      <!-- Modal panel -->
-      <div :class="['modal-content', widthClasses]" @click.stop>
-        <!-- Header -->
-        <div class="modal-header">
-          <h3 id="modal-title" class="modal-title">
-            {{ title }}
-          </h3>
-          <button
-            @click="emit('close')"
-            class="-mr-2 rounded-xl p-2 text-gray-400 transition-colors hover:bg-gray-100 hover:text-gray-600 dark:text-dark-500 dark:hover:bg-dark-700 dark:hover:text-dark-300"
-            aria-label="Close modal"
-          >
-            <svg
-              class="h-5 w-5"
-              fill="none"
-              stroke="currentColor"
-              viewBox="0 0 24 24"
-              stroke-width="1.5"
+    <Transition name="modal">
+      <div
+        v-if="show"
+        class="modal-overlay"
+        :aria-labelledby="dialogId"
+        role="dialog"
+        aria-modal="true"
+        @click.self="handleClose"
+      >
+        <!-- Modal panel -->
+        <div ref="dialogRef" :class="['modal-content', widthClasses]" @click.stop>
+          <!-- Header -->
+          <div class="modal-header">
+            <h3 :id="dialogId" class="modal-title">
+              {{ title }}
+            </h3>
+            <button
+              @click="emit('close')"
+              class="-mr-2 rounded-xl p-2 text-gray-400 transition-colors hover:bg-gray-100 hover:text-gray-600 dark:text-dark-500 dark:hover:bg-dark-700 dark:hover:text-dark-300"
+              aria-label="Close modal"
             >
-              <path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
-            </svg>
-          </button>
-        </div>
+              <svg
+                class="h-5 w-5"
+                fill="none"
+                stroke="currentColor"
+                viewBox="0 0 24 24"
+                stroke-width="1.5"
+              >
+                <path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
+              </svg>
+            </button>
+          </div>
 
-        <!-- Body -->
-        <div class="modal-body">
-          <slot></slot>
-        </div>
+          <!-- Body -->
+          <div class="modal-body">
+            <slot></slot>
+          </div>
 
-        <!-- Footer -->
-        <div v-if="$slots.footer" class="modal-footer">
-          <slot name="footer"></slot>
+          <!-- Footer -->
+          <div v-if="$slots.footer" class="modal-footer">
+            <slot name="footer"></slot>
+          </div>
         </div>
       </div>
-    </div>
+    </Transition>
   </Teleport>
 </template>
 
 <script setup lang="ts">
-import { computed, watch, onMounted, onUnmounted } from 'vue'
+import { computed, watch, onMounted, onUnmounted, ref, nextTick } from 'vue'
+
+// 生成唯一ID以避免多个对话框时ID冲突
+let dialogIdCounter = 0
+const dialogId = `modal-title-${++dialogIdCounter}`
+
+// 焦点管理
+const dialogRef = ref<HTMLElement | null>(null)
+let previousActiveElement: HTMLElement | null = null
 
 type DialogWidth = 'narrow' | 'normal' | 'wide' | 'extra-wide' | 'full'
 
@@ -72,12 +82,15 @@ const props = withDefaults(defineProps<Props>(), {
 const emit = defineEmits<Emits>()
 
 const widthClasses = computed(() => {
+  // Width guidance: narrow=confirm/short prompts, normal=standard forms,
+  // wide=multi-section forms or rich content, extra-wide=analytics/tables,
+  // full=full-screen or very dense layouts.
   const widths: Record<DialogWidth, string> = {
     narrow: 'max-w-md',
     normal: 'max-w-lg',
-    wide: 'max-w-4xl',
-    'extra-wide': 'max-w-6xl',
-    full: 'max-w-7xl'
+    wide: 'w-full sm:max-w-2xl md:max-w-3xl lg:max-w-4xl',
+    'extra-wide': 'w-full sm:max-w-3xl md:max-w-4xl lg:max-w-5xl xl:max-w-6xl',
+    full: 'w-full sm:max-w-4xl md:max-w-5xl lg:max-w-6xl xl:max-w-7xl'
   }
   return widths[props.width]
 })
@@ -94,14 +107,31 @@ const handleEscape = (event: KeyboardEvent) => {
   }
 }
 
-// Prevent body scroll when modal is open
+// Prevent body scroll when modal is open and manage focus
 watch(
   () => props.show,
-  (isOpen) => {
+  async (isOpen) => {
     if (isOpen) {
-      document.body.style.overflow = 'hidden'
+      // 保存当前焦点元素
+      previousActiveElement = document.activeElement as HTMLElement
+      // 使用CSS类而不是直接操作style,更易于管理多个对话框
+      document.body.classList.add('modal-open')
+
+      // 等待DOM更新后设置焦点到对话框
+      await nextTick()
+      if (dialogRef.value) {
+        const firstFocusable = dialogRef.value.querySelector<HTMLElement>(
+          'button, [href], input, select, textarea, [tabindex]:not([tabindex="-1"])'
+        )
+        firstFocusable?.focus()
+      }
     } else {
-      document.body.style.overflow = ''
+      document.body.classList.remove('modal-open')
+      // 恢复之前的焦点
+      if (previousActiveElement && typeof previousActiveElement.focus === 'function') {
+        previousActiveElement.focus()
+      }
+      previousActiveElement = null
     }
   },
   { immediate: true }
@@ -113,6 +143,7 @@ onMounted(() => {
 
 onUnmounted(() => {
   document.removeEventListener('keydown', handleEscape)
-  document.body.style.overflow = ''
+  // 确保组件卸载时移除滚动锁定
+  document.body.classList.remove('modal-open')
 })
 </script>
diff --git a/frontend/src/components/common/ExportProgressDialog.vue b/frontend/src/components/common/ExportProgressDialog.vue
new file mode 100644
index 00000000..f8712a47
--- /dev/null
+++ b/frontend/src/components/common/ExportProgressDialog.vue
@@ -0,0 +1,68 @@
+<template>
+  <BaseDialog :show="show" :title="t('usage.exporting')" width="narrow" @close="handleCancel">
+    <div class="space-y-4">
+      <div class="text-sm text-gray-600 dark:text-gray-400">
+        {{ t('usage.exportingProgress') }}
+      </div>
+      <div class="flex items-center justify-between text-sm text-gray-700 dark:text-gray-300">
+        <span>{{ t('usage.exportedCount', { current, total }) }}</span>
+        <span class="font-medium text-gray-900 dark:text-white">{{ normalizedProgress }}%</span>
+      </div>
+      <div class="h-2 w-full rounded-full bg-gray-200 dark:bg-dark-700">
+        <div
+          role="progressbar"
+          :aria-valuenow="normalizedProgress"
+          aria-valuemin="0"
+          aria-valuemax="100"
+          :aria-label="`${t('usage.exportingProgress')}: ${normalizedProgress}%`"
+          class="h-2 rounded-full bg-primary-600 transition-all"
+          :style="{ width: `${normalizedProgress}%` }"
+        ></div>
+      </div>
+      <div v-if="estimatedTime" class="text-xs text-gray-500 dark:text-gray-400" aria-live="polite" aria-atomic="true">
+        {{ t('usage.estimatedTime', { time: estimatedTime }) }}
+      </div>
+    </div>
+
+    <template #footer>
+      <button
+        @click="handleCancel"
+        type="button"
+        class="rounded-md border border-gray-300 bg-white px-4 py-2 text-sm font-medium text-gray-700 hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-primary-500 focus:ring-offset-2 dark:border-dark-600 dark:bg-dark-700 dark:text-gray-200 dark:hover:bg-dark-600 dark:focus:ring-offset-dark-800"
+      >
+        {{ t('usage.cancelExport') }}
+      </button>
+    </template>
+  </BaseDialog>
+</template>
+
+<script setup lang="ts">
+import { computed } from 'vue'
+import { useI18n } from 'vue-i18n'
+import BaseDialog from './BaseDialog.vue'
+
+interface Props {
+  show: boolean
+  progress: number
+  current: number
+  total: number
+  estimatedTime: string
+}
+
+interface Emits {
+  (e: 'cancel'): void
+}
+
+const props = defineProps<Props>()
+const emit = defineEmits<Emits>()
+const { t } = useI18n()
+
+const normalizedProgress = computed(() => {
+  const value = Number.isFinite(props.progress) ? props.progress : 0
+  return Math.min(100, Math.max(0, Math.round(value)))
+})
+
+const handleCancel = () => {
+  emit('cancel')
+}
+</script>
diff --git a/frontend/src/components/common/Modal.vue b/frontend/src/components/common/Modal.vue
deleted file mode 100644
index 89304de1..00000000
--- a/frontend/src/components/common/Modal.vue
+++ /dev/null
@@ -1,120 +0,0 @@
-<template>
-  <Teleport to="body">
-    <div
-      v-if="show"
-      class="modal-overlay"
-      aria-labelledby="modal-title"
-      role="dialog"
-      aria-modal="true"
-      @click.self="handleClose"
-    >
-      <!-- Modal panel -->
-      <div :class="['modal-content', sizeClasses]" @click.stop>
-        <!-- Header -->
-        <div class="modal-header">
-          <h3 id="modal-title" class="modal-title">
-            {{ title }}
-          </h3>
-          <button
-            @click="emit('close')"
-            class="-mr-2 rounded-xl p-2 text-gray-400 transition-colors hover:bg-gray-100 hover:text-gray-600 dark:text-dark-500 dark:hover:bg-dark-700 dark:hover:text-dark-300"
-            aria-label="Close modal"
-          >
-            <svg
-              class="h-5 w-5"
-              fill="none"
-              stroke="currentColor"
-              viewBox="0 0 24 24"
-              stroke-width="1.5"
-            >
-              <path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
-            </svg>
-          </button>
-        </div>
-
-        <!-- Body -->
-        <div class="modal-body">
-          <slot></slot>
-        </div>
-
-        <!-- Footer -->
-        <div v-if="$slots.footer" class="modal-footer">
-          <slot name="footer"></slot>
-        </div>
-      </div>
-    </div>
-  </Teleport>
-</template>
-
-<script setup lang="ts">
-import { computed, watch, onMounted, onUnmounted } from 'vue'
-
-type ModalSize = 'sm' | 'md' | 'lg' | 'xl' | '2xl' | 'full'
-
-interface Props {
-  show: boolean
-  title: string
-  size?: ModalSize
-  closeOnEscape?: boolean
-  closeOnClickOutside?: boolean
-}
-
-interface Emits {
-  (e: 'close'): void
-}
-
-const props = withDefaults(defineProps<Props>(), {
-  size: 'md',
-  closeOnEscape: true,
-  closeOnClickOutside: false
-})
-
-const emit = defineEmits<Emits>()
-
-const sizeClasses = computed(() => {
-  const sizes: Record<ModalSize, string> = {
-    sm: 'max-w-sm',
-    md: 'max-w-md',
-    lg: 'max-w-lg',
-    xl: 'max-w-xl',
-    '2xl': 'max-w-5xl',
-    full: 'max-w-4xl'
-  }
-  return sizes[props.size]
-})
-
-const handleClose = () => {
-  if (props.closeOnClickOutside) {
-    emit('close')
-  }
-}
-
-const handleEscape = (event: KeyboardEvent) => {
-  if (props.show && props.closeOnEscape && event.key === 'Escape') {
-    emit('close')
-  }
-}
-
-// Prevent body scroll when modal is open
-watch(
-  () => props.show,
-  (isOpen) => {
-    console.log('[Modal] show changed to:', isOpen)
-    if (isOpen) {
-      document.body.style.overflow = 'hidden'
-    } else {
-      document.body.style.overflow = ''
-    }
-  },
-  { immediate: true }
-)
-
-onMounted(() => {
-  document.addEventListener('keydown', handleEscape)
-})
-
-onUnmounted(() => {
-  document.removeEventListener('keydown', handleEscape)
-  document.body.style.overflow = ''
-})
-</script>
diff --git a/frontend/src/components/common/index.ts b/frontend/src/components/common/index.ts
index 16b5c6ef..754034a2 100644
--- a/frontend/src/components/common/index.ts
+++ b/frontend/src/components/common/index.ts
@@ -1,7 +1,6 @@
 // Export all common components
 export { default as DataTable } from './DataTable.vue'
 export { default as Pagination } from './Pagination.vue'
-export { default as Modal } from './Modal.vue'
 export { default as BaseDialog } from './BaseDialog.vue'
 export { default as ConfirmDialog } from './ConfirmDialog.vue'
 export { default as StatCard } from './StatCard.vue'
@@ -9,6 +8,7 @@ export { default as Toast } from './Toast.vue'
 export { default as LoadingSpinner } from './LoadingSpinner.vue'
 export { default as EmptyState } from './EmptyState.vue'
 export { default as LocaleSwitcher } from './LocaleSwitcher.vue'
+export { default as ExportProgressDialog } from './ExportProgressDialog.vue'
 
 // Export types
 export type { Column } from './types'
diff --git a/frontend/src/i18n/locales/en.ts b/frontend/src/i18n/locales/en.ts
index e62691d9..8f1e9fa2 100644
--- a/frontend/src/i18n/locales/en.ts
+++ b/frontend/src/i18n/locales/en.ts
@@ -326,7 +326,8 @@ export default {
     customKeyHint: 'Only letters, numbers, underscores and hyphens allowed. Minimum 16 characters.',
     customKeyTooShort: 'Custom key must be at least 16 characters',
     customKeyInvalidChars: 'Custom key can only contain letters, numbers, underscores, and hyphens',
-    customKeyRequired: 'Please enter a custom key'
+    customKeyRequired: 'Please enter a custom key',
+    ccSwitchNotInstalled: 'CC-Switch is not installed or the protocol handler is not registered. Please install CC-Switch first or manually copy the API key.'
   },
 
   // Usage
@@ -345,6 +346,12 @@ export default {
     allApiKeys: 'All API Keys',
     timeRange: 'Time Range',
     exportCsv: 'Export CSV',
+    exportExcel: 'Export Excel',
+    exportingProgress: 'Exporting data...',
+    exportedCount: 'Exported {current}/{total} records',
+    estimatedTime: 'Estimated time remaining: {time}',
+    cancelExport: 'Cancel Export',
+    exportCancelled: 'Export cancelled',
     exporting: 'Exporting...',
     preparingExport: 'Preparing export...',
     model: 'Model',
@@ -368,6 +375,8 @@ export default {
     noDataToExport: 'No data to export',
     exportSuccess: 'Usage data exported successfully',
     exportFailed: 'Failed to export usage data',
+    exportExcelSuccess: 'Usage data exported successfully (Excel format)',
+    exportExcelFailed: 'Failed to export usage data',
     billingType: 'Billing',
     balance: 'Balance',
     subscription: 'Subscription'
@@ -1291,6 +1300,7 @@ export default {
       account: 'Account',
       group: 'Group',
       requestId: 'Request ID',
+      requestIdCopied: 'Request ID copied',
       allModels: 'All Models',
       allAccounts: 'All Accounts',
       allGroups: 'All Groups',
@@ -1300,6 +1310,10 @@ export default {
       outputCost: 'Output Cost',
       cacheCreationCost: 'Cache Creation Cost',
       cacheReadCost: 'Cache Read Cost',
+      inputTokens: 'Input Tokens',
+      outputTokens: 'Output Tokens',
+      cacheCreationTokens: 'Cache Creation Tokens',
+      cacheReadTokens: 'Cache Read Tokens',
       failedToLoad: 'Failed to load usage records'
     },
 
diff --git a/frontend/src/i18n/locales/zh.ts b/frontend/src/i18n/locales/zh.ts
index 2bb27eec..2e4c7673 100644
--- a/frontend/src/i18n/locales/zh.ts
+++ b/frontend/src/i18n/locales/zh.ts
@@ -322,7 +322,8 @@ export default {
     customKeyHint: '仅允许字母、数字、下划线和连字符，最少16个字符。',
     customKeyTooShort: '自定义密钥至少需要16个字符',
     customKeyInvalidChars: '自定义密钥只能包含字母、数字、下划线和连字符',
-    customKeyRequired: '请输入自定义密钥'
+    customKeyRequired: '请输入自定义密钥',
+    ccSwitchNotInstalled: 'CC-Switch 未安装或协议处理程序未注册。请先安装 CC-Switch 或手动复制 API 密钥。'
   },
 
   // Usage
@@ -341,6 +342,12 @@ export default {
     allApiKeys: '全部密钥',
     timeRange: '时间范围',
     exportCsv: '导出 CSV',
+    exportExcel: '导出 Excel',
+    exportingProgress: '正在导出数据...',
+    exportedCount: '已导出 {current}/{total} 条',
+    estimatedTime: '预计剩余时间：{time}',
+    cancelExport: '取消导出',
+    exportCancelled: '导出已取消',
     exporting: '导出中...',
     preparingExport: '正在准备导出...',
     model: '模型',
@@ -364,6 +371,8 @@ export default {
     noDataToExport: '没有可导出的数据',
     exportSuccess: '使用数据导出成功',
     exportFailed: '使用数据导出失败',
+    exportExcelSuccess: '使用数据导出成功（Excel格式）',
+    exportExcelFailed: '使用数据导出失败',
     billingType: '消费类型',
     balance: '余额',
     subscription: '订阅'
@@ -1490,6 +1499,7 @@ export default {
       account: '账户',
       group: '分组',
       requestId: '请求ID',
+      requestIdCopied: '请求ID已复制',
       allModels: '全部模型',
       allAccounts: '全部账户',
       allGroups: '全部分组',
@@ -1499,6 +1509,10 @@ export default {
       outputCost: '输出成本',
       cacheCreationCost: '缓存创建成本',
       cacheReadCost: '缓存读取成本',
+      inputTokens: '输入 Token',
+      outputTokens: '输出 Token',
+      cacheCreationTokens: '缓存创建 Token',
+      cacheReadTokens: '缓存读取 Token',
       failedToLoad: '加载使用记录失败'
     },
 
diff --git a/frontend/src/style.css b/frontend/src/style.css
index f7c2e6ae..bd86ab6d 100644
--- a/frontend/src/style.css
+++ b/frontend/src/style.css
@@ -79,6 +79,20 @@
     @apply hover:from-red-600 hover:to-red-700 hover:shadow-lg hover:shadow-red-500/30;
   }
 
+  .btn-success {
+    @apply bg-gradient-to-r from-emerald-500 to-emerald-600;
+    @apply text-white shadow-md shadow-emerald-500/25;
+    @apply hover:from-emerald-600 hover:to-emerald-700 hover:shadow-lg hover:shadow-emerald-500/30;
+    @apply dark:shadow-emerald-500/20;
+  }
+
+  .btn-warning {
+    @apply bg-gradient-to-r from-amber-500 to-amber-600;
+    @apply text-white shadow-md shadow-amber-500/25;
+    @apply hover:from-amber-600 hover:to-amber-700 hover:shadow-lg hover:shadow-amber-500/30;
+    @apply dark:shadow-amber-500/20;
+  }
+
   .btn-sm {
     @apply rounded-lg px-3 py-1.5 text-xs;
   }
@@ -130,6 +144,20 @@
     -moz-appearance: textfield;
   }
 
+  /* ============ 玻璃效果 ============ */
+  .glass {
+    @apply bg-white/80 backdrop-blur-xl dark:bg-dark-800/80;
+  }
+
+  .glass-card {
+    @apply bg-white/70 dark:bg-dark-800/70;
+    @apply backdrop-blur-xl;
+    @apply rounded-2xl;
+    @apply border border-white/20 dark:border-dark-700/50;
+    @apply shadow-glass;
+    @apply transition-all duration-300;
+  }
+
   /* ============ 卡片样式 ============ */
   .card {
     @apply bg-white dark:bg-dark-800/50;
@@ -151,6 +179,20 @@
     @apply shadow-glass;
   }
 
+  .card-header {
+    @apply border-b border-gray-100 dark:border-dark-700;
+    @apply px-6 py-4;
+  }
+
+  .card-body {
+    @apply p-6;
+  }
+
+  .card-footer {
+    @apply border-t border-gray-100 dark:border-dark-700;
+    @apply px-6 py-4;
+  }
+
   /* ============ 统计卡片 ============ */
   .stat-card {
     @apply card p-5;
@@ -256,6 +298,10 @@
     @apply bg-gray-100 text-gray-700 dark:bg-dark-700 dark:text-dark-300;
   }
 
+  .badge-purple {
+    @apply bg-purple-100 text-purple-700 dark:bg-purple-900/30 dark:text-purple-400;
+  }
+
   /* ============ 下拉菜单 ============ */
   .dropdown {
     @apply absolute z-50;
@@ -283,15 +329,19 @@
   }
 
   .modal-content {
+    @apply w-full;
+    @apply max-h-[95vh] sm:max-h-[90vh];
     @apply bg-white dark:bg-dark-800;
     @apply rounded-2xl shadow-2xl;
-    @apply w-full;
-    @apply max-h-[90vh] overflow-y-auto;
+    @apply border border-gray-200 dark:border-dark-700;
+    @apply flex flex-col;
   }
 
   .modal-header {
-    @apply border-b border-gray-100 px-6 py-4 dark:border-dark-700;
+    @apply border-b border-gray-200 px-4 py-3 dark:border-dark-700;
+    @apply sm:px-6 sm:py-4;
     @apply flex items-center justify-between;
+    @apply flex-shrink-0;
   }
 
   .modal-title {
@@ -299,12 +349,69 @@
   }
 
   .modal-body {
-    @apply px-6 py-4;
+    @apply px-4 py-3;
+    @apply sm:px-6 sm:py-4;
+    @apply flex-1 overflow-y-auto;
   }
 
   .modal-footer {
-    @apply border-t border-gray-100 px-6 py-4 dark:border-dark-700;
+    @apply border-t border-gray-200 px-4 py-3 dark:border-dark-700;
+    @apply sm:px-6 sm:py-4;
     @apply flex items-center justify-end gap-3;
+    @apply flex-shrink-0;
+  }
+
+  /* 防止body滚动的工具类 */
+  body.modal-open {
+    overflow: hidden;
+  }
+
+  .modal-enter-active {
+    transition: opacity 250ms ease-out;
+  }
+
+  .modal-leave-active {
+    transition: opacity 200ms ease-in;
+  }
+
+  .modal-enter-from,
+  .modal-leave-to {
+    opacity: 0;
+  }
+
+  .modal-enter-active .modal-content {
+    transition: transform 250ms ease-out, opacity 250ms ease-out;
+  }
+
+  .modal-leave-active .modal-content {
+    transition: transform 200ms ease-in, opacity 200ms ease-in;
+  }
+
+  .modal-enter-from .modal-content,
+  .modal-leave-to .modal-content {
+    transform: scale(0.95);
+    opacity: 0;
+  }
+
+  .modal-enter-to .modal-content,
+  .modal-leave-from .modal-content {
+    transform: scale(1);
+    opacity: 1;
+  }
+
+  @media (prefers-reduced-motion: reduce) {
+    .modal-enter-active,
+    .modal-leave-active,
+    .modal-enter-active .modal-content,
+    .modal-leave-active .modal-content {
+      transition-duration: 1ms;
+      transition-delay: 0ms;
+    }
+
+    .modal-enter-from .modal-content,
+    .modal-leave-to .modal-content {
+      transform: none;
+    }
   }
 
   /* ============ Dialog ============ */
diff --git a/frontend/src/views/admin/AccountsView.vue b/frontend/src/views/admin/AccountsView.vue
index 1d5f7653..916f6fb7 100644
--- a/frontend/src/views/admin/AccountsView.vue
+++ b/frontend/src/views/admin/AccountsView.vue
@@ -105,65 +105,65 @@
 
       <template #table>
         <!-- Bulk Actions Bar -->
-      <div
-        v-if="selectedAccountIds.length > 0"
-        class="card border-primary-200 bg-primary-50 px-4 py-3 dark:border-primary-800 dark:bg-primary-900/20"
-      >
-        <div class="flex flex-wrap items-center justify-between gap-3">
-          <div class="flex flex-wrap items-center gap-2">
-            <span class="text-sm font-medium text-primary-900 dark:text-primary-100">
-              {{ t('admin.accounts.bulkActions.selected', { count: selectedAccountIds.length }) }}
-            </span>
-            <button
-              @click="selectCurrentPageAccounts"
-              class="text-xs font-medium text-primary-700 hover:text-primary-800 dark:text-primary-300 dark:hover:text-primary-200"
-            >
-              {{ t('admin.accounts.bulkActions.selectCurrentPage') }}
-            </button>
-            <span class="text-gray-300 dark:text-primary-800">•</span>
-            <button
-              @click="selectedAccountIds = []"
-              class="text-xs font-medium text-primary-700 hover:text-primary-800 dark:text-primary-300 dark:hover:text-primary-200"
-            >
-              {{ t('admin.accounts.bulkActions.clear') }}
-            </button>
-          </div>
-          <div class="flex items-center gap-2">
-            <button @click="handleBulkDelete" class="btn btn-danger btn-sm">
-              <svg
-                class="mr-1.5 h-4 w-4"
-                fill="none"
-                viewBox="0 0 24 24"
-                stroke="currentColor"
-                stroke-width="1.5"
+        <div
+          v-if="selectedAccountIds.length > 0"
+          class="mb-[5px] mt-[10px] px-5 py-1"
+        >
+          <div class="flex flex-wrap items-center justify-between gap-3">
+            <div class="flex flex-wrap items-center gap-2">
+              <span class="text-sm font-medium text-primary-900 dark:text-primary-100">
+                {{ t('admin.accounts.bulkActions.selected', { count: selectedAccountIds.length }) }}
+              </span>
+              <button
+                @click="selectCurrentPageAccounts"
+                class="text-xs font-medium text-primary-700 hover:text-primary-800 dark:text-primary-300 dark:hover:text-primary-200"
               >
-                <path
-                  stroke-linecap="round"
-                  stroke-linejoin="round"
-                  d="M14.74 9l-.346 9m-4.788 0L9.26 9m9.968-3.21c.342.052.682.107 1.022.166m-1.022-.165L18.16 19.673a2.25 2.25 0 01-2.244 2.077H8.084a2.25 2.25 0 01-2.244-2.077L4.772 5.79m14.456 0a48.108 48.108 0 00-3.478-.397m-12 .562c.34-.059.68-.114 1.022-.165m0 0a48.11 48.11 0 013.478-.397m7.5 0v-.916c0-1.18-.91-2.164-2.09-2.201a51.964 51.964 0 00-3.32 0c-1.18.037-2.09 1.022-2.09 2.201v.916m7.5 0a48.667 48.667 0 00-7.5 0"
-                />
-              </svg>
-              {{ t('admin.accounts.bulkActions.delete') }}
-            </button>
-            <button @click="showBulkEditModal = true" class="btn btn-primary btn-sm">
-              <svg
-                class="mr-1.5 h-4 w-4"
-                fill="none"
-                viewBox="0 0 24 24"
-                stroke="currentColor"
-                stroke-width="1.5"
+                {{ t('admin.accounts.bulkActions.selectCurrentPage') }}
+              </button>
+              <span class="text-gray-300 dark:text-primary-800">•</span>
+              <button
+                @click="selectedAccountIds = []"
+                class="text-xs font-medium text-primary-700 hover:text-primary-800 dark:text-primary-300 dark:hover:text-primary-200"
               >
-                <path
-                  stroke-linecap="round"
-                  stroke-linejoin="round"
-                  d="M16.862 4.487l1.687-1.688a1.875 1.875 0 112.652 2.652L10.582 16.07a4.5 4.5 0 01-1.897 1.13L6 18l.8-2.685a4.5 4.5 0 011.13-1.897l8.932-8.931zm0 0L19.5 7.125M18 14v4.75A2.25 2.25 0 0115.75 21H5.25A2.25 2.25 0 013 18.75V8.25A2.25 2.25 0 015.25 6H10"
-                />
-              </svg>
-              {{ t('admin.accounts.bulkActions.edit') }}
-            </button>
+                {{ t('admin.accounts.bulkActions.clear') }}
+              </button>
+            </div>
+            <div class="flex items-center gap-2">
+              <button @click="handleBulkDelete" class="btn btn-danger btn-sm">
+                <svg
+                  class="mr-1.5 h-4 w-4"
+                  fill="none"
+                  viewBox="0 0 24 24"
+                  stroke="currentColor"
+                  stroke-width="1.5"
+                >
+                  <path
+                    stroke-linecap="round"
+                    stroke-linejoin="round"
+                    d="M14.74 9l-.346 9m-4.788 0L9.26 9m9.968-3.21c.342.052.682.107 1.022.166m-1.022-.165L18.16 19.673a2.25 2.25 0 01-2.244 2.077H8.084a2.25 2.25 0 01-2.244-2.077L4.772 5.79m14.456 0a48.108 48.108 0 00-3.478-.397m-12 .562c.34-.059.68-.114 1.022-.165m0 0a48.11 48.11 0 013.478-.397m7.5 0v-.916c0-1.18-.91-2.164-2.09-2.201a51.964 51.964 0 00-3.32 0c-1.18.037-2.09 1.022-2.09 2.201v.916m7.5 0a48.667 48.667 0 00-7.5 0"
+                  />
+                </svg>
+                {{ t('admin.accounts.bulkActions.delete') }}
+              </button>
+              <button @click="showBulkEditModal = true" class="btn btn-primary btn-sm">
+                <svg
+                  class="mr-1.5 h-4 w-4"
+                  fill="none"
+                  viewBox="0 0 24 24"
+                  stroke="currentColor"
+                  stroke-width="1.5"
+                >
+                  <path
+                    stroke-linecap="round"
+                    stroke-linejoin="round"
+                    d="M16.862 4.487l1.687-1.688a1.875 1.875 0 112.652 2.652L10.582 16.07a4.5 4.5 0 01-1.897 1.13L6 18l.8-2.685a4.5 4.5 0 011.13-1.897l8.932-8.931zm0 0L19.5 7.125M18 14v4.75A2.25 2.25 0 0115.75 21H5.25A2.25 2.25 0 013 18.75V8.25A2.25 2.25 0 015.25 6H10"
+                  />
+                </svg>
+                {{ t('admin.accounts.bulkActions.edit') }}
+              </button>
+            </div>
           </div>
         </div>
-      </div>
 
       <DataTable :columns="columns" :data="accounts" :loading="loading">
           <template #cell-select="{ row }">
diff --git a/frontend/src/views/admin/UsageView.vue b/frontend/src/views/admin/UsageView.vue
index 142a09cd..85a748f4 100644
--- a/frontend/src/views/admin/UsageView.vue
+++ b/frontend/src/views/admin/UsageView.vue
@@ -300,8 +300,8 @@
               <button @click="resetFilters" class="btn btn-secondary">
                 {{ t('common.reset') }}
               </button>
-              <button @click="exportToCSV" class="btn btn-primary">
-                {{ t('usage.exportCsv') }}
+              <button @click="exportToExcel" :disabled="exporting" class="btn btn-primary">
+                {{ t('usage.exportExcel') }}
               </button>
             </div>
           </div>
@@ -361,90 +361,114 @@
           </template>
 
           <template #cell-tokens="{ row }">
-            <div class="space-y-1.5 text-sm">
-              <!-- Input / Output Tokens -->
-              <div class="flex items-center gap-2">
-                <!-- Input -->
-                <div class="inline-flex items-center gap-1">
-                  <svg
-                    class="h-3.5 w-3.5 text-emerald-500"
-                    fill="none"
-                    stroke="currentColor"
-                    viewBox="0 0 24 24"
-                  >
-                    <path
-                      stroke-linecap="round"
-                      stroke-linejoin="round"
-                      stroke-width="2"
-                      d="M19 14l-7 7m0 0l-7-7m7 7V3"
-                    />
-                  </svg>
-                  <span class="font-medium text-gray-900 dark:text-white">{{
-                    row.input_tokens.toLocaleString()
-                  }}</span>
+            <div class="flex items-center gap-1.5">
+              <div class="space-y-1.5 text-sm">
+                <!-- Input / Output Tokens -->
+                <div class="flex items-center gap-2">
+                  <!-- Input -->
+                  <div class="inline-flex items-center gap-1">
+                    <svg
+                      class="h-3.5 w-3.5 text-emerald-500"
+                      fill="none"
+                      stroke="currentColor"
+                      viewBox="0 0 24 24"
+                    >
+                      <path
+                        stroke-linecap="round"
+                        stroke-linejoin="round"
+                        stroke-width="2"
+                        d="M19 14l-7 7m0 0l-7-7m7 7V3"
+                      />
+                    </svg>
+                    <span class="font-medium text-gray-900 dark:text-white">{{
+                      row.input_tokens.toLocaleString()
+                    }}</span>
+                  </div>
+                  <!-- Output -->
+                  <div class="inline-flex items-center gap-1">
+                    <svg
+                      class="h-3.5 w-3.5 text-violet-500"
+                      fill="none"
+                      stroke="currentColor"
+                      viewBox="0 0 24 24"
+                    >
+                      <path
+                        stroke-linecap="round"
+                        stroke-linejoin="round"
+                        stroke-width="2"
+                        d="M5 10l7-7m0 0l7 7m-7-7v18"
+                      />
+                    </svg>
+                    <span class="font-medium text-gray-900 dark:text-white">{{
+                      row.output_tokens.toLocaleString()
+                    }}</span>
+                  </div>
                 </div>
-                <!-- Output -->
-                <div class="inline-flex items-center gap-1">
-                  <svg
-                    class="h-3.5 w-3.5 text-violet-500"
-                    fill="none"
-                    stroke="currentColor"
-                    viewBox="0 0 24 24"
-                  >
-                    <path
-                      stroke-linecap="round"
-                      stroke-linejoin="round"
-                      stroke-width="2"
-                      d="M5 10l7-7m0 0l7 7m-7-7v18"
-                    />
-                  </svg>
-                  <span class="font-medium text-gray-900 dark:text-white">{{
-                    row.output_tokens.toLocaleString()
-                  }}</span>
+                <!-- Cache Tokens (Read + Write) -->
+                <div
+                  v-if="row.cache_read_tokens > 0 || row.cache_creation_tokens > 0"
+                  class="flex items-center gap-2"
+                >
+                  <!-- Cache Read -->
+                  <div v-if="row.cache_read_tokens > 0" class="inline-flex items-center gap-1">
+                    <svg
+                      class="h-3.5 w-3.5 text-sky-500"
+                      fill="none"
+                      stroke="currentColor"
+                      viewBox="0 0 24 24"
+                    >
+                      <path
+                        stroke-linecap="round"
+                        stroke-linejoin="round"
+                        stroke-width="2"
+                        d="M5 8h14M5 8a2 2 0 110-4h14a2 2 0 110 4M5 8v10a2 2 0 002 2h10a2 2 0 002-2V8m-9 4h4"
+                      />
+                    </svg>
+                    <span class="font-medium text-sky-600 dark:text-sky-400">{{
+                      formatCacheTokens(row.cache_read_tokens)
+                    }}</span>
+                  </div>
+                  <!-- Cache Write -->
+                  <div v-if="row.cache_creation_tokens > 0" class="inline-flex items-center gap-1">
+                    <svg
+                      class="h-3.5 w-3.5 text-amber-500"
+                      fill="none"
+                      stroke="currentColor"
+                      viewBox="0 0 24 24"
+                    >
+                      <path
+                        stroke-linecap="round"
+                        stroke-linejoin="round"
+                        stroke-width="2"
+                        d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"
+                      />
+                    </svg>
+                    <span class="font-medium text-amber-600 dark:text-amber-400">{{
+                      formatCacheTokens(row.cache_creation_tokens)
+                    }}</span>
+                  </div>
                 </div>
               </div>
-              <!-- Cache Tokens (Read + Write) -->
+              <!-- Token Detail Tooltip -->
               <div
-                v-if="row.cache_read_tokens > 0 || row.cache_creation_tokens > 0"
-                class="flex items-center gap-2"
+                class="group relative"
+                @mouseenter="showTokenTooltip($event, row)"
+                @mouseleave="hideTokenTooltip"
               >
-                <!-- Cache Read -->
-                <div v-if="row.cache_read_tokens > 0" class="inline-flex items-center gap-1">
+                <div
+                  class="flex h-4 w-4 cursor-help items-center justify-center rounded-full bg-gray-100 transition-colors group-hover:bg-blue-100 dark:bg-gray-700 dark:group-hover:bg-blue-900/50"
+                >
                   <svg
-                    class="h-3.5 w-3.5 text-sky-500"
-                    fill="none"
-                    stroke="currentColor"
-                    viewBox="0 0 24 24"
+                    class="h-3 w-3 text-gray-400 group-hover:text-blue-500 dark:text-gray-500 dark:group-hover:text-blue-400"
+                    fill="currentColor"
+                    viewBox="0 0 20 20"
                   >
                     <path
-                      stroke-linecap="round"
-                      stroke-linejoin="round"
-                      stroke-width="2"
-                      d="M5 8h14M5 8a2 2 0 110-4h14a2 2 0 110 4M5 8v10a2 2 0 002 2h10a2 2 0 002-2V8m-9 4h4"
+                      fill-rule="evenodd"
+                      d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z"
+                      clip-rule="evenodd"
                     />
                   </svg>
-                  <span class="font-medium text-sky-600 dark:text-sky-400">{{
-                    formatCacheTokens(row.cache_read_tokens)
-                  }}</span>
-                </div>
-                <!-- Cache Write -->
-                <div v-if="row.cache_creation_tokens > 0" class="inline-flex items-center gap-1">
-                  <svg
-                    class="h-3.5 w-3.5 text-amber-500"
-                    fill="none"
-                    stroke="currentColor"
-                    viewBox="0 0 24 24"
-                  >
-                    <path
-                      stroke-linecap="round"
-                      stroke-linejoin="round"
-                      stroke-width="2"
-                      d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"
-                    />
-                  </svg>
-                  <span class="font-medium text-amber-600 dark:text-amber-400">{{
-                    formatCacheTokens(row.cache_creation_tokens)
-                  }}</span>
                 </div>
               </div>
             </div>
@@ -516,9 +540,50 @@
           </template>
 
           <template #cell-request_id="{ row }">
-            <span class="font-mono text-xs text-gray-500 dark:text-gray-400">{{
-              row.request_id || '-'
-            }}</span>
+            <div v-if="row.request_id" class="flex items-center gap-1.5 max-w-[120px]">
+              <span
+                class="font-mono text-xs text-gray-500 dark:text-gray-400 truncate"
+                :title="row.request_id"
+              >
+                {{ row.request_id }}
+              </span>
+              <button
+                @click="copyRequestId(row.request_id)"
+                class="flex-shrink-0 rounded p-0.5 transition-colors hover:bg-gray-100 dark:hover:bg-dark-700"
+                :class="
+                  copiedRequestId === row.request_id
+                    ? 'text-green-500'
+                    : 'text-gray-400 hover:text-gray-600 dark:hover:text-gray-300'
+                "
+                :title="copiedRequestId === row.request_id ? t('keys.copied') : t('keys.copyToClipboard')"
+              >
+                <svg
+                  v-if="copiedRequestId === row.request_id"
+                  class="h-3.5 w-3.5"
+                  fill="none"
+                  stroke="currentColor"
+                  viewBox="0 0 24 24"
+                  stroke-width="2"
+                >
+                  <path stroke-linecap="round" stroke-linejoin="round" d="M5 13l4 4L19 7" />
+                </svg>
+                <svg
+                  v-else
+                  class="h-3.5 w-3.5"
+                  fill="none"
+                  stroke="currentColor"
+                  viewBox="0 0 24 24"
+                  stroke-width="2"
+                >
+                  <path
+                    stroke-linecap="round"
+                    stroke-linejoin="round"
+                    d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"
+                  />
+                </svg>
+              </button>
+            </div>
+            <span v-else class="text-gray-400 dark:text-gray-500">-</span>
           </template>
 
           <template #empty>
@@ -540,6 +605,63 @@
     </div>
   </AppLayout>
 
+  <ExportProgressDialog
+    :show="exportProgress.show"
+    :progress="exportProgress.progress"
+    :current="exportProgress.current"
+    :total="exportProgress.total"
+    :estimated-time="exportProgress.estimatedTime"
+    @cancel="cancelExport"
+  />
+
+  <!-- Token Tooltip Portal -->
+  <Teleport to="body">
+    <div
+      v-if="tokenTooltipVisible"
+      class="fixed z-[9999] pointer-events-none -translate-y-1/2"
+      :style="{
+        left: tokenTooltipPosition.x + 'px',
+        top: tokenTooltipPosition.y + 'px'
+      }"
+    >
+      <div
+        class="whitespace-nowrap rounded-lg border border-gray-700 bg-gray-900 px-3 py-2.5 text-xs text-white shadow-xl dark:border-gray-600 dark:bg-gray-800"
+      >
+        <div class="space-y-1.5">
+          <!-- Token Breakdown -->
+          <div class="mb-2 border-b border-gray-700 pb-1.5">
+            <div class="text-xs font-semibold text-gray-300 mb-1">Token 明细</div>
+            <div v-if="tokenTooltipData && tokenTooltipData.input_tokens > 0" class="flex items-center justify-between gap-4">
+              <span class="text-gray-400">{{ t('admin.usage.inputTokens') }}</span>
+              <span class="font-medium text-white">{{ tokenTooltipData.input_tokens.toLocaleString() }}</span>
+            </div>
+            <div v-if="tokenTooltipData && tokenTooltipData.output_tokens > 0" class="flex items-center justify-between gap-4">
+              <span class="text-gray-400">{{ t('admin.usage.outputTokens') }}</span>
+              <span class="font-medium text-white">{{ tokenTooltipData.output_tokens.toLocaleString() }}</span>
+            </div>
+            <div v-if="tokenTooltipData && tokenTooltipData.cache_creation_tokens > 0" class="flex items-center justify-between gap-4">
+              <span class="text-gray-400">{{ t('admin.usage.cacheCreationTokens') }}</span>
+              <span class="font-medium text-white">{{ tokenTooltipData.cache_creation_tokens.toLocaleString() }}</span>
+            </div>
+            <div v-if="tokenTooltipData && tokenTooltipData.cache_read_tokens > 0" class="flex items-center justify-between gap-4">
+              <span class="text-gray-400">{{ t('admin.usage.cacheReadTokens') }}</span>
+              <span class="font-medium text-white">{{ tokenTooltipData.cache_read_tokens.toLocaleString() }}</span>
+            </div>
+          </div>
+          <!-- Total -->
+          <div class="flex items-center justify-between gap-6 border-t border-gray-700 pt-1.5">
+            <span class="text-gray-400">{{ t('usage.totalTokens') }}</span>
+            <span class="font-semibold text-blue-400">{{ ((tokenTooltipData?.input_tokens || 0) + (tokenTooltipData?.output_tokens || 0) + (tokenTooltipData?.cache_creation_tokens || 0) + (tokenTooltipData?.cache_read_tokens || 0)).toLocaleString() }}</span>
+          </div>
+        </div>
+        <!-- Tooltip Arrow (left side) -->
+        <div
+          class="absolute right-full top-1/2 h-0 w-0 -translate-y-1/2 border-b-[6px] border-r-[6px] border-t-[6px] border-b-transparent border-r-gray-900 border-t-transparent dark:border-r-gray-800"
+        ></div>
+      </div>
+    </div>
+  </Teleport>
+
   <!-- Tooltip Portal -->
   <Teleport to="body">
     <div
@@ -602,10 +724,14 @@
 </template>
 
 <script setup lang="ts">
-import { ref, computed, onMounted, onUnmounted } from 'vue'
+import { ref, computed, reactive, onMounted, onUnmounted } from 'vue'
 import { useI18n } from 'vue-i18n'
+import * as XLSX from 'xlsx'
+import { saveAs } from 'file-saver'
 import { useAppStore } from '@/stores/app'
+import { useClipboard } from '@/composables/useClipboard'
 import { adminAPI } from '@/api/admin'
+import { adminUsageAPI } from '@/api/admin/usage'
 import AppLayout from '@/components/layout/AppLayout.vue'
 import DataTable from '@/components/common/DataTable.vue'
 import Pagination from '@/components/common/Pagination.vue'
@@ -615,6 +741,7 @@ import Select from '@/components/common/Select.vue'
 import DateRangePicker from '@/components/common/DateRangePicker.vue'
 import ModelDistributionChart from '@/components/charts/ModelDistributionChart.vue'
 import TokenUsageTrend from '@/components/charts/TokenUsageTrend.vue'
+import ExportProgressDialog from '@/components/common/ExportProgressDialog.vue'
 import type { UsageLog, TrendDataPoint, ModelStat } from '@/types'
 import type { Column } from '@/components/common/types'
 import type {
@@ -626,12 +753,21 @@ import type {
 
 const { t } = useI18n()
 const appStore = useAppStore()
+const { copyToClipboard: clipboardCopy } = useClipboard()
 
 // Tooltip state
 const tooltipVisible = ref(false)
 const tooltipPosition = ref({ x: 0, y: 0 })
 const tooltipData = ref<UsageLog | null>(null)
 
+// Token tooltip state
+const tokenTooltipVisible = ref(false)
+const tokenTooltipPosition = ref({ x: 0, y: 0 })
+const tokenTooltipData = ref<UsageLog | null>(null)
+
+// Request ID copy state
+const copiedRequestId = ref<string | null>(null)
+
 // Usage stats from API
 const usageStats = ref<AdminUsageStatsResponse | null>(null)
 
@@ -657,6 +793,7 @@ const columns = computed<Column[]>(() => [
   { key: 'tokens', label: t('usage.tokens'), sortable: false },
   { key: 'cost', label: t('usage.cost'), sortable: false },
   { key: 'billing_type', label: t('usage.billingType'), sortable: false },
+  { key: 'first_token', label: t('usage.firstToken'), sortable: false },
   { key: 'duration', label: t('usage.duration'), sortable: false },
   { key: 'created_at', label: t('usage.time'), sortable: true },
   { key: 'request_id', label: t('admin.usage.requestId'), sortable: false }
@@ -669,6 +806,15 @@ const accounts = ref<any[]>([])
 const groups = ref<any[]>([])
 const loading = ref(false)
 let abortController: AbortController | null = null
+let exportAbortController: AbortController | null = null
+const exporting = ref(false)
+const exportProgress = reactive({
+  show: false,
+  progress: 0,
+  current: 0,
+  total: 0,
+  estimatedTime: ''
+})
 
 // User search state
 const userSearchKeyword = ref('')
@@ -868,6 +1014,16 @@ const formatCacheTokens = (value: number): string => {
   return value.toLocaleString()
 }
 
+const copyRequestId = async (requestId: string) => {
+  const success = await clipboardCopy(requestId, t('admin.usage.requestIdCopied'))
+  if (success) {
+    copiedRequestId.value = requestId
+    setTimeout(() => {
+      copiedRequestId.value = null
+    }, 800)
+  }
+}
+
 const isAbortError = (error: unknown): boolean => {
   if (error instanceof DOMException && error.name === 'AbortError') {
     return true
@@ -879,6 +1035,40 @@ const isAbortError = (error: unknown): boolean => {
   return false
 }
 
+const formatExportTimestamp = (date: Date): string => {
+  const pad = (value: number) => String(value).padStart(2, '0')
+  return `${date.getFullYear()}-${pad(date.getMonth() + 1)}-${pad(date.getDate())}_${pad(date.getHours())}-${pad(date.getMinutes())}-${pad(date.getSeconds())}`
+}
+
+const formatRemainingTime = (ms: number): string => {
+  const totalSeconds = Math.max(0, Math.round(ms / 1000))
+  const hours = Math.floor(totalSeconds / 3600)
+  const minutes = Math.floor((totalSeconds % 3600) / 60)
+  const seconds = totalSeconds % 60
+  const parts = []
+  if (hours > 0) {
+    parts.push(`${hours}h`)
+  }
+  if (minutes > 0 || hours > 0) {
+    parts.push(`${minutes}m`)
+  }
+  parts.push(`${seconds}s`)
+  return parts.join(' ')
+}
+
+const updateExportProgress = (current: number, total: number, startedAt: number) => {
+  exportProgress.current = current
+  exportProgress.total = total
+  exportProgress.progress = total > 0 ? Math.min(100, Math.round((current / total) * 100)) : 0
+  if (current > 0 && total > 0) {
+    const elapsedMs = Date.now() - startedAt
+    const remainingMs = Math.max(0, Math.round((elapsedMs / current) * (total - current)))
+    exportProgress.estimatedTime = formatRemainingTime(remainingMs)
+  } else {
+    exportProgress.estimatedTime = ''
+  }
+}
+
 const loadUsageLogs = async () => {
   if (abortController) {
     abortController.abort()
@@ -1051,52 +1241,129 @@ const handlePageSizeChange = (pageSize: number) => {
   loadUsageLogs()
 }
 
-const exportToCSV = () => {
-  if (usageLogs.value.length === 0) {
+const cancelExport = () => {
+  if (!exporting.value) {
+    return
+  }
+  exportAbortController?.abort()
+}
+
+const exportToExcel = async () => {
+  if (pagination.value.total === 0) {
     appStore.showWarning(t('usage.noDataToExport'))
     return
   }
 
-  const headers = [
-    'User',
-    'API Key',
-    'Model',
-    'Type',
-    'Input Tokens',
-    'Output Tokens',
-    'Cache Read Tokens',
-    'Cache Write Tokens',
-    'Total Cost',
-    'Billing Type',
-    'Duration (ms)',
-    'Time'
-  ]
-  const rows = usageLogs.value.map((log) => [
-    log.user?.email || '',
-    log.api_key?.name || '',
-    log.model,
-    log.stream ? 'Stream' : 'Sync',
-    log.input_tokens,
-    log.output_tokens,
-    log.cache_read_tokens,
-    log.cache_creation_tokens,
-    log.total_cost.toFixed(6),
-    log.billing_type === 1 ? 'Subscription' : 'Balance',
-    log.duration_ms,
-    log.created_at
-  ])
+  if (exporting.value) {
+    return
+  }
 
-  const csvContent = [headers.join(','), ...rows.map((row) => row.join(','))].join('\n')
+  exporting.value = true
+  exportProgress.show = true
+  exportProgress.progress = 0
+  exportProgress.current = 0
+  exportProgress.total = pagination.value.total
+  exportProgress.estimatedTime = ''
 
-  const blob = new Blob([csvContent], { type: 'text/csv' })
-  const url = window.URL.createObjectURL(blob)
-  const link = document.createElement('a')
-  link.href = url
-  link.download = `admin_usage_${new Date().toISOString().split('T')[0]}.csv`
-  link.click()
-  window.URL.revokeObjectURL(url)
+  const startedAt = Date.now()
+  const controller = new AbortController()
+  exportAbortController = controller
 
-  appStore.showSuccess(t('usage.exportSuccess'))
+  try {
+    const allLogs: UsageLog[] = []
+    const pageSize = 100
+    let page = 1
+    let total = pagination.value.total
+
+    while (true) {
+      const params: AdminUsageQueryParams = {
+        page,
+        page_size: pageSize,
+        ...filters.value
+      }
+      const response = await adminUsageAPI.list(params, { signal: controller.signal })
+      if (controller.signal.aborted) {
+        break
+      }
+      if (page === 1) {
+        total = response.total
+        exportProgress.total = total
+      }
+      if (response.items?.length) {
+        allLogs.push(...response.items)
+      }
+
+      updateExportProgress(allLogs.length, total, startedAt)
+
+      if (allLogs.length >= total || response.items.length < pageSize) {
+        break
+      }
+      page += 1
+    }
+
+    if (controller.signal.aborted) {
+      appStore.showInfo(t('usage.exportCancelled'))
+      return
+    }
+
+    if (allLogs.length === 0) {
+      appStore.showWarning(t('usage.noDataToExport'))
+      return
+    }
+
+    const headers = [
+      'User',
+      'API Key',
+      'Model',
+      'Type',
+      'Input Tokens',
+      'Output Tokens',
+      'Cache Read Tokens',
+      'Cache Write Tokens',
+      'Total Cost',
+      'Billing Type',
+      'Duration (ms)',
+      'Time'
+    ]
+    const rows = allLogs.map((log) => [
+      log.user?.email || '',
+      log.api_key?.name || '',
+      log.model,
+      log.stream ? 'Stream' : 'Sync',
+      log.input_tokens,
+      log.output_tokens,
+      log.cache_read_tokens,
+      log.cache_creation_tokens,
+      Number(log.total_cost.toFixed(6)),
+      log.billing_type === 1 ? 'Subscription' : 'Balance',
+      log.duration_ms,
+      log.created_at
+    ])
+
+    const worksheet = XLSX.utils.aoa_to_sheet([headers, ...rows])
+    const workbook = XLSX.utils.book_new()
+    XLSX.utils.book_append_sheet(workbook, worksheet, 'Usage')
+    const excelBuffer = XLSX.write(workbook, { bookType: 'xlsx', type: 'array' })
+    const blob = new Blob([excelBuffer], {
+      type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
+    })
+
+    saveAs(blob, `admin_usage_${formatExportTimestamp(new Date())}.xlsx`)
+    appStore.showSuccess(t('usage.exportExcelSuccess'))
+  } catch (error) {
+    if (controller.signal.aborted || isAbortError(error)) {
+      appStore.showInfo(t('usage.exportCancelled'))
+      return
+    }
+    appStore.showError(t('usage.exportExcelFailed'))
+    console.error('Excel export failed:', error)
+  } finally {
+    if (exportAbortController === controller) {
+      exportAbortController = null
+    }
+    exporting.value = false
+    exportProgress.show = false
+  }
 }
 
 // Click outside to close dropdown
@@ -1123,6 +1390,22 @@ const hideTooltip = () => {
   tooltipData.value = null
 }
 
+// Token tooltip functions
+const showTokenTooltip = (event: MouseEvent, row: UsageLog) => {
+  const target = event.currentTarget as HTMLElement
+  const rect = target.getBoundingClientRect()
+
+  tokenTooltipData.value = row
+  tokenTooltipPosition.value.x = rect.right + 8
+  tokenTooltipPosition.value.y = rect.top + rect.height / 2
+  tokenTooltipVisible.value = true
+}
+
+const hideTokenTooltip = () => {
+  tokenTooltipVisible.value = false
+  tokenTooltipData.value = null
+}
+
 onMounted(() => {
   loadFilterOptions()
   loadApiKeys()
@@ -1140,5 +1423,8 @@ onUnmounted(() => {
   if (abortController) {
     abortController.abort()
   }
+  if (exportAbortController) {
+    exportAbortController.abort()
+  }
 })
 </script>
diff --git a/frontend/src/views/user/KeysView.vue b/frontend/src/views/user/KeysView.vue
index e7b2ed18..bd4a657f 100644
--- a/frontend/src/views/user/KeysView.vue
+++ b/frontend/src/views/user/KeysView.vue
@@ -301,7 +301,7 @@
     <BaseDialog
       :show="showCreateModal || showEditModal"
       :title="showEditModal ? t('keys.editKey') : t('keys.createKey')"
-      width="narrow"
+      width="normal"
       @close="closeModals"
     >
       <form id="key-form" @submit.prevent="handleSubmit" class="space-y-5">
@@ -893,7 +893,20 @@ const importToCcswitch = (apiKey: string) => {
     usageAutoInterval: '30'
   })
   const deeplink = `ccswitch://v1/import?${params.toString()}`
-  window.open(deeplink, '_self')
+
+  try {
+    window.open(deeplink, '_self')
+
+    // Check if the protocol handler worked by detecting if we're still focused
+    setTimeout(() => {
+      if (document.hasFocus()) {
+        // Still focused means the protocol handler likely failed
+        appStore.showError(t('keys.ccSwitchNotInstalled'))
+      }
+    }, 100)
+  } catch (error) {
+    appStore.showError(t('keys.ccSwitchNotInstalled'))
+  }
 }
 
 onMounted(() => {
diff --git a/frontend/src/views/user/UsageView.vue b/frontend/src/views/user/UsageView.vue
index 53e6aa0b..2206c7bd 100644
--- a/frontend/src/views/user/UsageView.vue
+++ b/frontend/src/views/user/UsageView.vue
@@ -219,90 +219,114 @@
           </template>
 
           <template #cell-tokens="{ row }">
-            <div class="space-y-1.5 text-sm">
-              <!-- Input / Output Tokens -->
-              <div class="flex items-center gap-2">
-                <!-- Input -->
-                <div class="inline-flex items-center gap-1">
-                  <svg
-                    class="h-3.5 w-3.5 text-emerald-500"
-                    fill="none"
-                    stroke="currentColor"
-                    viewBox="0 0 24 24"
-                  >
-                    <path
-                      stroke-linecap="round"
-                      stroke-linejoin="round"
-                      stroke-width="2"
-                      d="M19 14l-7 7m0 0l-7-7m7 7V3"
-                    />
-                  </svg>
-                  <span class="font-medium text-gray-900 dark:text-white">{{
-                    row.input_tokens.toLocaleString()
-                  }}</span>
+            <div class="flex items-center gap-1.5">
+              <div class="space-y-1.5 text-sm">
+                <!-- Input / Output Tokens -->
+                <div class="flex items-center gap-2">
+                  <!-- Input -->
+                  <div class="inline-flex items-center gap-1">
+                    <svg
+                      class="h-3.5 w-3.5 text-emerald-500"
+                      fill="none"
+                      stroke="currentColor"
+                      viewBox="0 0 24 24"
+                    >
+                      <path
+                        stroke-linecap="round"
+                        stroke-linejoin="round"
+                        stroke-width="2"
+                        d="M19 14l-7 7m0 0l-7-7m7 7V3"
+                      />
+                    </svg>
+                    <span class="font-medium text-gray-900 dark:text-white">{{
+                      row.input_tokens.toLocaleString()
+                    }}</span>
+                  </div>
+                  <!-- Output -->
+                  <div class="inline-flex items-center gap-1">
+                    <svg
+                      class="h-3.5 w-3.5 text-violet-500"
+                      fill="none"
+                      stroke="currentColor"
+                      viewBox="0 0 24 24"
+                    >
+                      <path
+                        stroke-linecap="round"
+                        stroke-linejoin="round"
+                        stroke-width="2"
+                        d="M5 10l7-7m0 0l7 7m-7-7v18"
+                      />
+                    </svg>
+                    <span class="font-medium text-gray-900 dark:text-white">{{
+                      row.output_tokens.toLocaleString()
+                    }}</span>
+                  </div>
                 </div>
-                <!-- Output -->
-                <div class="inline-flex items-center gap-1">
-                  <svg
-                    class="h-3.5 w-3.5 text-violet-500"
-                    fill="none"
-                    stroke="currentColor"
-                    viewBox="0 0 24 24"
-                  >
-                    <path
-                      stroke-linecap="round"
-                      stroke-linejoin="round"
-                      stroke-width="2"
-                      d="M5 10l7-7m0 0l7 7m-7-7v18"
-                    />
-                  </svg>
-                  <span class="font-medium text-gray-900 dark:text-white">{{
-                    row.output_tokens.toLocaleString()
-                  }}</span>
+                <!-- Cache Tokens (Read + Write) -->
+                <div
+                  v-if="row.cache_read_tokens > 0 || row.cache_creation_tokens > 0"
+                  class="flex items-center gap-2"
+                >
+                  <!-- Cache Read -->
+                  <div v-if="row.cache_read_tokens > 0" class="inline-flex items-center gap-1">
+                    <svg
+                      class="h-3.5 w-3.5 text-sky-500"
+                      fill="none"
+                      stroke="currentColor"
+                      viewBox="0 0 24 24"
+                    >
+                      <path
+                        stroke-linecap="round"
+                        stroke-linejoin="round"
+                        stroke-width="2"
+                        d="M5 8h14M5 8a2 2 0 110-4h14a2 2 0 110 4M5 8v10a2 2 0 002 2h10a2 2 0 002-2V8m-9 4h4"
+                      />
+                    </svg>
+                    <span class="font-medium text-sky-600 dark:text-sky-400">{{
+                      formatCacheTokens(row.cache_read_tokens)
+                    }}</span>
+                  </div>
+                  <!-- Cache Write -->
+                  <div v-if="row.cache_creation_tokens > 0" class="inline-flex items-center gap-1">
+                    <svg
+                      class="h-3.5 w-3.5 text-amber-500"
+                      fill="none"
+                      stroke="currentColor"
+                      viewBox="0 0 24 24"
+                    >
+                      <path
+                        stroke-linecap="round"
+                        stroke-linejoin="round"
+                        stroke-width="2"
+                        d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"
+                      />
+                    </svg>
+                    <span class="font-medium text-amber-600 dark:text-amber-400">{{
+                      formatCacheTokens(row.cache_creation_tokens)
+                    }}</span>
+                  </div>
                 </div>
               </div>
-              <!-- Cache Tokens (Read + Write) -->
+              <!-- Token Detail Tooltip -->
               <div
-                v-if="row.cache_read_tokens > 0 || row.cache_creation_tokens > 0"
-                class="flex items-center gap-2"
+                class="group relative"
+                @mouseenter="showTokenTooltip($event, row)"
+                @mouseleave="hideTokenTooltip"
               >
-                <!-- Cache Read -->
-                <div v-if="row.cache_read_tokens > 0" class="inline-flex items-center gap-1">
+                <div
+                  class="flex h-4 w-4 cursor-help items-center justify-center rounded-full bg-gray-100 transition-colors group-hover:bg-blue-100 dark:bg-gray-700 dark:group-hover:bg-blue-900/50"
+                >
                   <svg
-                    class="h-3.5 w-3.5 text-sky-500"
-                    fill="none"
-                    stroke="currentColor"
-                    viewBox="0 0 24 24"
+                    class="h-3 w-3 text-gray-400 group-hover:text-blue-500 dark:text-gray-500 dark:group-hover:text-blue-400"
+                    fill="currentColor"
+                    viewBox="0 0 20 20"
                   >
                     <path
-                      stroke-linecap="round"
-                      stroke-linejoin="round"
-                      stroke-width="2"
-                      d="M5 8h14M5 8a2 2 0 110-4h14a2 2 0 110 4M5 8v10a2 2 0 002 2h10a2 2 0 002-2V8m-9 4h4"
+                      fill-rule="evenodd"
+                      d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z"
+                      clip-rule="evenodd"
                     />
                   </svg>
-                  <span class="font-medium text-sky-600 dark:text-sky-400">{{
-                    formatCacheTokens(row.cache_read_tokens)
-                  }}</span>
-                </div>
-                <!-- Cache Write -->
-                <div v-if="row.cache_creation_tokens > 0" class="inline-flex items-center gap-1">
-                  <svg
-                    class="h-3.5 w-3.5 text-amber-500"
-                    fill="none"
-                    stroke="currentColor"
-                    viewBox="0 0 24 24"
-                  >
-                    <path
-                      stroke-linecap="round"
-                      stroke-linejoin="round"
-                      stroke-width="2"
-                      d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"
-                    />
-                  </svg>
-                  <span class="font-medium text-amber-600 dark:text-amber-400">{{
-                    formatCacheTokens(row.cache_creation_tokens)
-                  }}</span>
                 </div>
               </div>
             </div>
@@ -392,6 +416,54 @@
     </TablePageLayout>
   </AppLayout>
 
+  <!-- Token Tooltip Portal -->
+  <Teleport to="body">
+    <div
+      v-if="tokenTooltipVisible"
+      class="fixed z-[9999] pointer-events-none -translate-y-1/2"
+      :style="{
+        left: tokenTooltipPosition.x + 'px',
+        top: tokenTooltipPosition.y + 'px'
+      }"
+    >
+      <div
+        class="whitespace-nowrap rounded-lg border border-gray-700 bg-gray-900 px-3 py-2.5 text-xs text-white shadow-xl dark:border-gray-600 dark:bg-gray-800"
+      >
+        <div class="space-y-1.5">
+          <!-- Token Breakdown -->
+          <div class="mb-2 border-b border-gray-700 pb-1.5">
+            <div class="text-xs font-semibold text-gray-300 mb-1">Token 明细</div>
+            <div v-if="tokenTooltipData && tokenTooltipData.input_tokens > 0" class="flex items-center justify-between gap-4">
+              <span class="text-gray-400">{{ t('admin.usage.inputTokens') }}</span>
+              <span class="font-medium text-white">{{ tokenTooltipData.input_tokens.toLocaleString() }}</span>
+            </div>
+            <div v-if="tokenTooltipData && tokenTooltipData.output_tokens > 0" class="flex items-center justify-between gap-4">
+              <span class="text-gray-400">{{ t('admin.usage.outputTokens') }}</span>
+              <span class="font-medium text-white">{{ tokenTooltipData.output_tokens.toLocaleString() }}</span>
+            </div>
+            <div v-if="tokenTooltipData && tokenTooltipData.cache_creation_tokens > 0" class="flex items-center justify-between gap-4">
+              <span class="text-gray-400">{{ t('admin.usage.cacheCreationTokens') }}</span>
+              <span class="font-medium text-white">{{ tokenTooltipData.cache_creation_tokens.toLocaleString() }}</span>
+            </div>
+            <div v-if="tokenTooltipData && tokenTooltipData.cache_read_tokens > 0" class="flex items-center justify-between gap-4">
+              <span class="text-gray-400">{{ t('admin.usage.cacheReadTokens') }}</span>
+              <span class="font-medium text-white">{{ tokenTooltipData.cache_read_tokens.toLocaleString() }}</span>
+            </div>
+          </div>
+          <!-- Total -->
+          <div class="flex items-center justify-between gap-6 border-t border-gray-700 pt-1.5">
+            <span class="text-gray-400">{{ t('usage.totalTokens') }}</span>
+            <span class="font-semibold text-blue-400">{{ ((tokenTooltipData?.input_tokens || 0) + (tokenTooltipData?.output_tokens || 0) + (tokenTooltipData?.cache_creation_tokens || 0) + (tokenTooltipData?.cache_read_tokens || 0)).toLocaleString() }}</span>
+          </div>
+        </div>
+        <!-- Tooltip Arrow (left side) -->
+        <div
+          class="absolute right-full top-1/2 h-0 w-0 -translate-y-1/2 border-b-[6px] border-r-[6px] border-t-[6px] border-b-transparent border-r-gray-900 border-t-transparent dark:border-r-gray-800"
+        ></div>
+      </div>
+    </div>
+  </Teleport>
+
   <!-- Tooltip Portal -->
   <Teleport to="body">
     <div
@@ -458,6 +530,11 @@ const tooltipVisible = ref(false)
 const tooltipPosition = ref({ x: 0, y: 0 })
 const tooltipData = ref<UsageLog | null>(null)
 
+// Token tooltip state
+const tokenTooltipVisible = ref(false)
+const tokenTooltipPosition = ref({ x: 0, y: 0 })
+const tokenTooltipData = ref<UsageLog | null>(null)
+
 // Usage stats from API
 const usageStats = ref<UsageStatsResponse | null>(null)
 
@@ -778,6 +855,22 @@ const hideTooltip = () => {
   tooltipData.value = null
 }
 
+// Token tooltip functions
+const showTokenTooltip = (event: MouseEvent, row: UsageLog) => {
+  const target = event.currentTarget as HTMLElement
+  const rect = target.getBoundingClientRect()
+
+  tokenTooltipData.value = row
+  tokenTooltipPosition.value.x = rect.right + 8
+  tokenTooltipPosition.value.y = rect.top + rect.height / 2
+  tokenTooltipVisible.value = true
+}
+
+const hideTokenTooltip = () => {
+  tokenTooltipVisible.value = false
+  tokenTooltipData.value = null
+}
+
 onMounted(() => {
   loadApiKeys()
   loadUsageLogs()