diff --git a/frontend/src/views/accounts/components/AccountCreateModal.vue b/frontend/src/views/accounts/components/AccountCreateModal.vue
index d4e25dd78..c6950b02a 100644
--- a/frontend/src/views/accounts/components/AccountCreateModal.vue
+++ b/frontend/src/views/accounts/components/AccountCreateModal.vue
@@ -116,18 +116,13 @@ const modalTitle = computed(() => {
 const oauthPanelTitle = computed(() => {
   if (props.reauthorizing)
     return accountName.value
-  return isXai.value ? '使用 xAI OAuth 完成账号接入' : '使用 OpenAI OAuth 完成账号接入'
+  return isXai.value ? 'xAI OAuth 授权' : 'OpenAI OAuth 授权'
 })
 
 const oauthPanelDescription = computed(() => {
-  if (props.reauthorizing) {
-    return isXai.value
-      ? '生成新的授权链接，完成后粘贴回调地址、含 code 和 state 的查询字符串或授权码更新账号凭据'
-      : '生成新的授权链接，完成后粘贴回调地址更新账号凭据'
-  }
   return isXai.value
-    ? '复制授权链接到浏览器打开，完成后粘贴回调地址、含 code 和 state 的查询字符串或授权码即可导入'
-    : '复制授权链接到浏览器打开，完成后把回调地址粘贴到下方即可导入'
+    ? '生成并打开授权链接 → 完成浏览器授权 → 粘贴回调地址、查询字符串或授权码'
+    : '生成并打开授权链接 → 完成浏览器授权 → 粘贴回调地址'
 })
 
 const canGenerateOauth = computed(() =>
@@ -152,21 +147,21 @@ const description = computed<string | undefined>(() => {
     return undefined
   if (props.reauthorizing) {
     return isXai.value
-      ? '完成授权后粘贴回调地址、含 code 和 state 的查询字符串或授权码，系统会更新账号凭据'
-      : '完成授权后粘贴回调地址，系统会更新账号凭据'
+      ? '完成新的 xAI 授权并替换此账号凭据'
+      : '完成新的 OpenAI 授权并替换此账号凭据'
   }
   if (isBatch.value)
-    return '导入 CPR 多平台账号包，系统会按文档中的平台自动分流'
+    return '粘贴或上传 CPR 账号包，一次导入多个平台账号'
   if (isXai.value) {
     return mode.value === 'oauth'
-      ? '复制 xAI 授权链接，完成后粘贴回调地址、含 code 和 state 的查询字符串或授权码，不使用 xAI API Key'
-      : '导入 xAI 账号文件，已存在账号会更新'
+      ? '通过浏览器授权导入 xAI 账号'
+      : '粘贴或上传 xAI 账号文件，匹配已有账号时更新凭据'
   }
   if (mode.value === 'oauth')
-    return '复制 OpenAI 授权链接，完成后粘贴回调地址，系统会自动写入或更新账号'
+    return '通过浏览器授权导入 OpenAI 账号'
   if (mode.value === 'agent_identity')
-    return '导入 Agent 身份文件，系统会按身份信息写入或更新账号'
-  return '导入 CPR、Sub2API 或 CPA 账号文件，已存在账号会更新'
+    return '粘贴或上传 Agent 身份文件，匹配已有账号时更新凭据'
+  return '粘贴或上传 CPR、Sub2API 或 CPA 账号文件，匹配已有账号时更新凭据'
 })
 
 function selectProvider(value: 'openai' | 'xai' | 'batch') {
@@ -288,7 +283,7 @@ async function copyText(value: string, successText: string) {
               v-model="oauthCallback"
               :aria-label="isXai ? '回调地址或授权码' : '回调地址'"
               size="sm"
-              :placeholder="isXai ? '粘贴完整回调地址、?code=...&state=... 或裸授权码' : 'http://localhost:1455/auth/callback?code=...&state=...'"
+              :placeholder="isXai ? '回调地址、?code=...&state=... 或授权码' : 'http://localhost:1455/auth/callback?code=...&state=...'"
               :disabled="saving"
             />
           </BaseFormItem>
diff --git a/frontend/src/views/accounts/composables/useAccountConnectionTest.ts b/frontend/src/views/accounts/composables/useAccountConnectionTest.ts
index bd256e4c2..29119c626 100644
--- a/frontend/src/views/accounts/composables/useAccountConnectionTest.ts
+++ b/frontend/src/views/accounts/composables/useAccountConnectionTest.ts
@@ -103,7 +103,7 @@ export function useAccountConnectionTest(options: { reload: () => Promise<unknow
     if (connectionTestStatus.value === 'running') {
       return {
         label: '正在测试',
-        description: '正在发送一条真实 Responses 流式请求',
+        description: '正在向所选模型发送请求并接收流式响应',
         icon: Clock3,
         badge: 'bg-(--cp-info-bg) text-(--cp-info-text)',
         iconClass: 'text-(--cp-info)',
@@ -112,7 +112,7 @@ export function useAccountConnectionTest(options: { reload: () => Promise<unknow
     if (connectionTestStatus.value === 'success') {
       return {
         label: '连接正常',
-        description: '账号凭据可用，已完成 Responses 流式验证',
+        description: '请求已完成，可在下方查看模型、耗时和事件轨迹',
         icon: CheckCircle2,
         badge: 'bg-(--cp-success-bg) text-(--cp-success-text)',
         iconClass: 'text-(--cp-success)',
@@ -121,7 +121,7 @@ export function useAccountConnectionTest(options: { reload: () => Promise<unknow
     if (connectionTestStatus.value === 'error') {
       return {
         label: '测试失败',
-        description: '真实请求未完成，优先检查令牌状态、账号权限或上游网络',
+        description: '请求未完成，请在下方查看上游错误与事件轨迹',
         icon: XCircle,
         badge: 'bg-(--cp-danger-bg) text-(--cp-danger-text)',
         iconClass: 'text-(--cp-danger)',
@@ -129,7 +129,7 @@ export function useAccountConnectionTest(options: { reload: () => Promise<unknow
     }
     return {
       label: '准备测试',
-      description: '点击开始后发送一条轻量 Responses 流式请求',
+      description: '选择模型后，点击“开始测试”发送真实请求',
       icon: Wifi,
       badge: 'bg-(--cp-bg-subtle) text-(--cp-text-secondary)',
       iconClass: 'text-(--cp-text-muted)',
diff --git a/frontend/src/views/accounts/composables/useAccountOnboarding.ts b/frontend/src/views/accounts/composables/useAccountOnboarding.ts
index 2a99b4e75..dc9bb708f 100644
--- a/frontend/src/views/accounts/composables/useAccountOnboarding.ts
+++ b/frontend/src/views/accounts/composables/useAccountOnboarding.ts
@@ -189,11 +189,11 @@ export function useAccountOnboarding(options: {
     }
 
     if (importedCount === 0) {
-      throw new Error(failures.length > 0 ? `批量导入失败：${failures.join('；')}` : '批量文件没有可导入的账号')
+      throw new Error(failures.length > 0 ? `批量导入失败：${failures.join('、')}` : '批量文件没有可导入的账号')
     }
 
     if (failures.length > 0) {
-      return `已导入 ${importedCount} 个账号，${failures.length} 个文档失败：${failures.join('；')}`
+      return `已导入 ${importedCount} 个账号，${failures.length} 个文档失败：${failures.join('、')}`
     }
     return `已导入 ${importedCount} 个账号`
   }
diff --git a/frontend/src/views/accounts/utils/schedulingForm.ts b/frontend/src/views/accounts/utils/schedulingForm.ts
index d97d0d509..158825870 100644
--- a/frontend/src/views/accounts/utils/schedulingForm.ts
+++ b/frontend/src/views/accounts/utils/schedulingForm.ts
@@ -21,7 +21,7 @@ export function parseAccountSchedulingForm(
       || parsedLimit < 1
       || parsedLimit > MAX_ACCOUNT_CONCURRENCY)
   ) {
-    return { valid: false, message: `并发限制必须留空或填写 1 到 ${MAX_ACCOUNT_CONCURRENCY} 的整数` }
+    return { valid: false, message: `并发限制必须留空，或为 1 到 ${MAX_ACCOUNT_CONCURRENCY} 的整数` }
   }
 
   const parsedWeight = Number(weight.trim())
diff --git a/frontend/src/views/api-keys/components/ApiKeyCreateModal.vue b/frontend/src/views/api-keys/components/ApiKeyCreateModal.vue
index 3fa470140..b35f3fffe 100644
--- a/frontend/src/views/api-keys/components/ApiKeyCreateModal.vue
+++ b/frontend/src/views/api-keys/components/ApiKeyCreateModal.vue
@@ -27,16 +27,13 @@ const open = defineModel<boolean>({ default: false })
 const createdOpen = defineModel<boolean>('createdOpen', { default: false })
 const form = defineModel<ApiKeyFormValue>('form', { required: true })
 const title = computed(() => props.editing ? '编辑 API Key' : '创建 API Key')
-const description = computed(() => props.editing
-  ? '调整访问范围与调度限制，分组替换原子生效。'
-  : '为调用方选择一个或多个账号分组。')
 </script>
 
 <template>
   <BaseModal
     v-model="open"
     :title="title"
-    :description="description"
+    description="设置调用方可用的账号分组、并发和每分钟请求上限"
     variant="info"
     width="680px"
     body-max-height="min(680px, calc(100dvh - 190px))"
@@ -47,7 +44,7 @@ const description = computed(() => props.editing
         <BaseInput
           v-model="form.name"
           aria-label="名称"
-          placeholder="例如：生产环境、测试调用方..."
+          placeholder="例如：生产环境"
           :disabled="saving"
         />
       </BaseFormItem>
@@ -56,7 +53,7 @@ const description = computed(() => props.editing
         <BaseInput
           v-model="form.label"
           aria-label="标签（可选）"
-          placeholder="备注信息..."
+          placeholder="例如：后端服务"
           :disabled="saving"
         />
       </BaseFormItem>
@@ -108,7 +105,7 @@ const description = computed(() => props.editing
   <BaseModal
     v-model="createdOpen"
     title="API Key 已创建"
-    description="可以立即复制或导入 CCSwitch，之后也可从密钥列表再次操作"
+    description="复制密钥，或直接导入 CCSwitch"
     variant="success"
     width="540px"
   >
diff --git a/frontend/src/views/api-keys/components/ApiKeyUseModal.vue b/frontend/src/views/api-keys/components/ApiKeyUseModal.vue
index 650f82363..c010a6dfc 100644
--- a/frontend/src/views/api-keys/components/ApiKeyUseModal.vue
+++ b/frontend/src/views/api-keys/components/ApiKeyUseModal.vue
@@ -38,13 +38,13 @@ const authPath = computed(() =>
   activePlatform.value === 'windows' ? '%userprofile%\\.codex\\auth.json' : '~/.codex/auth.json',
 )
 const codexAuthJson = computed(() => JSON.stringify({ OPENAI_API_KEY: keyValue.value }, null, 2))
-const defaultModel = 'gpt-5.5'
+const defaultModel = 'gpt-5.6-terra'
 
 const codexConfigToml = computed(
   () => `model_provider = "OpenAI"
 model = "${defaultModel}"
 review_model = "${defaultModel}"
-model_reasoning_effort = "xhigh"
+model_reasoning_effort = "max"
 service_tier = "default"
 disable_response_storage = true
 network_access = "enabled"
@@ -70,7 +70,7 @@ const visibleFiles = computed(() => [
   <BaseModal
     v-model="open"
     title="使用密钥"
-    description="将以下配置文件添加到 Codex CLI 配置目录中"
+    description="将下方内容分别保存到显示的 Codex CLI 配置文件"
     width="760px"
   >
     <div class="flex flex-col gap-5">