diff --git a/ui/src/utils/api.ts b/ui/src/utils/api.ts
new file mode 100644
index 0000000..73a22be
--- /dev/null
+++ b/ui/src/utils/api.ts
@@ -0,0 +1,29 @@
+/**
+ * 统一 API 路径常量，避免硬编码散布在多个 Vue 文件中。
+ * 修改 API 路径只需在此处更新。
+ */
+export const API_BASE = '/apis/console.api.comment-ai-autopilot.nxxy335.top/v1alpha1'
+
+// ===== 日志相关 =====
+export const API_REPLIES = `${API_BASE}/replies`
+export const apiReply = (name: string) => `${API_REPLIES}/${name}`
+export const apiReplyAction = (name: string, action: string) => `${API_REPLIES}/${name}/${action}`
+export const API_BATCH_APPROVE = `${API_REPLIES}/batch-approve`
+export const API_BATCH_REJECT = `${API_REPLIES}/batch-reject`
+export const API_BATCH_DELETE = `${API_REPLIES}/batch-delete`
+export const apiConversation = (commentId: string) => `${API_BASE}/conversation/${commentId}`
+
+// ===== 概览相关 =====
+export const API_STATS = `${API_BASE}/stats`
+export const API_PERSONAS = `${API_BASE}/personas`
+export const apiPersona = (name: string) => `${API_PERSONAS}/${name}`
+export const API_HEALTH = `${API_BASE}/health`
+
+// ===== 设置相关 =====
+export const API_EXPORT = `${API_BASE}/export`
+export const API_IMPORT = `${API_BASE}/import`
+export const API_COMMENTERS = `${API_BASE}/commenters`
+export const API_CLEANUP = `${API_BASE}/cleanup`
+
+// ===== 评论触发 =====
+export const apiCommentTrigger = (commentName: string) => `${API_BASE}/comments/${commentName}/trigger`
diff --git a/ui/src/utils/gravatar.ts b/ui/src/utils/gravatar.ts
new file mode 100644
index 0000000..02537d7
--- /dev/null
+++ b/ui/src/utils/gravatar.ts
@@ -0,0 +1,14 @@
+export async function computeGravatarHash(email: string): Promise<string> {
+  if (!email || email.trim() === '') return ''
+  const normalizedEmail = email.trim().toLowerCase()
+  const encoder = new TextEncoder()
+  const data = encoder.encode(normalizedEmail)
+  const hashBuffer = await crypto.subtle.digest('SHA-256', data)
+  const hashArray = Array.from(new Uint8Array(hashBuffer))
+  return hashArray.map(b => b.toString(16).padStart(2, '0')).join('')
+}
+
+export function getGravatarUrl(hash: string): string {
+  if (!hash) return ''
+  return `https://cn.cravatar.com/avatar/${hash}`
+}