diff --git a/backend-single/src/main/java/com/emotion/dto/request/AdminCreateRequest.java b/backend-single/src/main/java/com/emotion/dto/request/AdminCreateRequest.java
index b7070c2..03eb256 100644
--- a/backend-single/src/main/java/com/emotion/dto/request/AdminCreateRequest.java
+++ b/backend-single/src/main/java/com/emotion/dto/request/AdminCreateRequest.java
@@ -1,5 +1,6 @@
 package com.emotion.dto.request;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 
 import javax.validation.constraints.Email;
@@ -21,39 +22,45 @@ public class AdminCreateRequest {
      */
     @NotBlank(message = "账号不能为空")
     @Size(min = 3, max = 50, message = "账号长度必须在3-50个字符之间")
+    @Schema(description = "管理员账号")
     private String account;
-    
+
     /**
      * 密码
      */
     @NotBlank(message = "密码不能为空")
     @Size(min = 6, max = 20, message = "密码长度必须在6-20个字符之间")
+    @Schema(description = "初始密码")
     private String password;
-    
+
     /**
      * 管理员姓名
      */
     @NotBlank(message = "姓名不能为空")
     @Size(min = 2, max = 50, message = "姓名长度必须在2-50个字符之间")
+    @Schema(description = "管理员姓名")
     private String username;
-    
+
     /**
      * 邮箱
      */
     @Email(message = "邮箱格式不正确")
     @Size(max = 100, message = "邮箱长度不能超过100个字符")
+    @Schema(description = "邮箱")
     private String email;
-    
+
     /**
      * 手机号
      */
     @Pattern(regexp = "^1[3-9]\\d{9}$", message = "手机号格式不正确")
+    @Schema(description = "手机号")
     private String phone;
 
     /**
      * 头像URL
      */
     @Size(max = 500, message = "头像URL长度不能超过500个字符")
+    @Schema(description = "头像URL")
     private String avatar;
 
     /**
@@ -61,22 +68,26 @@ public class AdminCreateRequest {
      */
     @NotBlank(message = "角色不能为空")
     @Pattern(regexp = "^(super_admin|admin|operator)$", message = "角色必须是super_admin、admin或operator")
+    @Schema(description = "角色（super_admin/admin/operator）")
     private String role;
 
     /**
      * 权限列表(JSON格式)
      */
+    @Schema(description = "权限列表（JSON格式）")
     private String permissions;
 
     /**
      * 所属部门
      */
     @Size(max = 50, message = "部门长度不能超过50个字符")
+    @Schema(description = "所属部门")
     private String department;
 
     /**
      * 职位
      */
     @Size(max = 50, message = "职位长度不能超过50个字符")
+    @Schema(description = "职位")
     private String position;
 }
diff --git a/backend-single/src/main/java/com/emotion/dto/request/AdminLoginRequest.java b/backend-single/src/main/java/com/emotion/dto/request/AdminLoginRequest.java
index 00b0a9f..b50dd91 100644
--- a/backend-single/src/main/java/com/emotion/dto/request/AdminLoginRequest.java
+++ b/backend-single/src/main/java/com/emotion/dto/request/AdminLoginRequest.java
@@ -1,5 +1,6 @@
 package com.emotion.dto.request;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 
 import javax.validation.constraints.NotBlank;
@@ -19,12 +20,14 @@ public class AdminLoginRequest {
      */
     @NotBlank(message = "账号不能为空")
     @Size(min = 3, max = 50, message = "账号长度必须在3-50个字符之间")
+    @Schema(description = "管理员账号")
     private String account;
-    
+
     /**
      * 密码
      */
     @NotBlank(message = "密码不能为空")
     @Size(min = 6, max = 20, message = "密码长度必须在6-20个字符之间")
+    @Schema(description = "管理员密码")
     private String password;
 }
diff --git a/backend-single/src/main/java/com/emotion/dto/request/AdminPageRequest.java b/backend-single/src/main/java/com/emotion/dto/request/AdminPageRequest.java
index 3cb84fb..8e66b28 100644
--- a/backend-single/src/main/java/com/emotion/dto/request/AdminPageRequest.java
+++ b/backend-single/src/main/java/com/emotion/dto/request/AdminPageRequest.java
@@ -1,5 +1,6 @@
 package com.emotion.dto.request;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import com.emotion.common.BasePageRequest;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
@@ -20,40 +21,47 @@ public class AdminPageRequest extends BasePageRequest {
      * 账号
      */
     @Size(max = 50, message = "账号长度不能超过50个字符")
+    @Schema(description = "账号（模糊搜索）")
     private String account;
 
     /**
      * 姓名
      */
     @Size(max = 50, message = "姓名长度不能超过50个字符")
+    @Schema(description = "姓名（模糊搜索）")
     private String username;
 
     /**
      * 邮箱
      */
     @Size(max = 100, message = "邮箱长度不能超过100个字符")
+    @Schema(description = "邮箱（模糊搜索）")
     private String email;
 
     /**
      * 手机号
      */
     @Size(max = 20, message = "手机号长度不能超过20个字符")
+    @Schema(description = "手机号（模糊搜索）")
     private String phone;
 
     /**
      * 角色
      */
     @Size(max = 20, message = "角色长度不能超过20个字符")
+    @Schema(description = "角色")
     private String role;
 
     /**
      * 状态: 0-禁用, 1-正常
      */
+    @Schema(description = "状态（0-禁用，1-正常）")
     private Integer status;
 
     /**
      * 部门
      */
     @Size(max = 50, message = "部门长度不能超过50个字符")
+    @Schema(description = "部门（模糊搜索）")
     private String department;
 }
diff --git a/backend-single/src/main/java/com/emotion/dto/request/AdminUpdateRequest.java b/backend-single/src/main/java/com/emotion/dto/request/AdminUpdateRequest.java
index 587ccd2..2403e1d 100644
--- a/backend-single/src/main/java/com/emotion/dto/request/AdminUpdateRequest.java
+++ b/backend-single/src/main/java/com/emotion/dto/request/AdminUpdateRequest.java
@@ -1,5 +1,6 @@
 package com.emotion.dto.request;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 
 import javax.validation.constraints.Email;
@@ -20,12 +21,14 @@ public class AdminUpdateRequest {
      * ID
      */
     @NotBlank(message = "ID不能为空")
+    @Schema(description = "管理员ID")
     private String id;
 
     /**
      * 管理员姓名
      */
     @Size(min = 2, max = 50, message = "姓名长度必须在2-50个字符之间")
+    @Schema(description = "管理员姓名")
     private String username;
 
     /**
@@ -33,45 +36,53 @@ public class AdminUpdateRequest {
      */
     @Email(message = "邮箱格式不正确")
     @Size(max = 100, message = "邮箱长度不能超过100个字符")
+    @Schema(description = "邮箱")
     private String email;
 
     /**
      * 手机号
      */
     @Pattern(regexp = "^1[3-9]\\d{9}$", message = "手机号格式不正确")
+    @Schema(description = "手机号")
     private String phone;
 
     /**
      * 头像URL
      */
     @Size(max = 500, message = "头像URL长度不能超过500个字符")
+    @Schema(description = "头像URL")
     private String avatar;
 
     /**
      * 角色
      */
     @Pattern(regexp = "^(super_admin|admin|operator)$", message = "角色必须是super_admin、admin或operator")
+    @Schema(description = "角色（super_admin/admin/operator）")
     private String role;
 
     /**
      * 权限列表(JSON格式)
      */
+    @Schema(description = "权限列表（JSON格式）")
     private String permissions;
 
     /**
      * 状态: 0-禁用, 1-正常
      */
+    @Schema(description = "状态（0-禁用，1-正常）")
     private Integer status;
 
     /**
      * 所属部门
      */
     @Size(max = 50, message = "部门长度不能超过50个字符")
+    @Schema(description = "所属部门")
     private String department;
 
     /**
      * 职位
      */
     @Size(max = 50, message = "职位长度不能超过50个字符")
+    @Schema(description = "职位")
     private String position;
 }
diff --git a/backend-single/src/main/java/com/emotion/dto/request/LoginRequest.java b/backend-single/src/main/java/com/emotion/dto/request/LoginRequest.java
index 4ac88b1..2c2a08b 100644
--- a/backend-single/src/main/java/com/emotion/dto/request/LoginRequest.java
+++ b/backend-single/src/main/java/com/emotion/dto/request/LoginRequest.java
@@ -1,5 +1,6 @@
 package com.emotion.dto.request;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 
@@ -23,6 +24,7 @@ public class LoginRequest extends BaseRequest {
      */
     @NotBlank(message = "手机号不能为空")
     @Pattern(regexp = "^1[3-9]\\d{9}$", message = "手机号格式不正确")
+    @Schema(description = "手机号")
     private String phone;
 
     /**
@@ -30,5 +32,6 @@ public class LoginRequest extends BaseRequest {
      */
     @NotBlank(message = "验证码不能为空")
     @Size(min = 6, max = 6, message = "验证码必须为6位")
+    @Schema(description = "短信验证码")
     private String smsCode;
 }
diff --git a/backend-single/src/main/java/com/emotion/dto/request/RefreshTokenRequest.java b/backend-single/src/main/java/com/emotion/dto/request/RefreshTokenRequest.java
index 0bf93fa..197bc40 100644
--- a/backend-single/src/main/java/com/emotion/dto/request/RefreshTokenRequest.java
+++ b/backend-single/src/main/java/com/emotion/dto/request/RefreshTokenRequest.java
@@ -1,5 +1,6 @@
 package com.emotion.dto.request;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 
@@ -19,5 +20,6 @@ public class RefreshTokenRequest extends BaseRequest {
      * 刷新令牌
      */
     @NotBlank(message = "刷新令牌不能为空")
+    @Schema(description = "刷新令牌")
     private String refreshToken;
 } 
\ No newline at end of file
diff --git a/backend-single/src/main/java/com/emotion/dto/request/RegisterRequest.java b/backend-single/src/main/java/com/emotion/dto/request/RegisterRequest.java
index 47a06d8..cfb982f 100644
--- a/backend-single/src/main/java/com/emotion/dto/request/RegisterRequest.java
+++ b/backend-single/src/main/java/com/emotion/dto/request/RegisterRequest.java
@@ -1,5 +1,6 @@
 package com.emotion.dto.request;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 
@@ -23,6 +24,7 @@ public class RegisterRequest extends BaseRequest {
      */
     @NotBlank(message = "手机号不能为空")
     @Pattern(regexp = "^1[3-9]\\d{9}$", message = "手机号格式不正确")
+    @Schema(description = "手机号（作为账号）")
     private String phone;
 
     /**
@@ -30,6 +32,7 @@ public class RegisterRequest extends BaseRequest {
      */
     @NotBlank(message = "密码不能为空")
     @Size(min = 6, max = 20, message = "密码长度必须在6-20个字符之间")
+    @Schema(description = "密码")
     private String password;
 
     /**
@@ -37,5 +40,6 @@ public class RegisterRequest extends BaseRequest {
      */
     @NotBlank(message = "验证码不能为空")
     @Size(min = 6, max = 6, message = "验证码必须为6位")
+    @Schema(description = "短信验证码")
     private String smsCode;
 }
diff --git a/backend-single/src/main/java/com/emotion/dto/request/ResetPasswordRequest.java b/backend-single/src/main/java/com/emotion/dto/request/ResetPasswordRequest.java
index 0aa6ebd..c7861dd 100644
--- a/backend-single/src/main/java/com/emotion/dto/request/ResetPasswordRequest.java
+++ b/backend-single/src/main/java/com/emotion/dto/request/ResetPasswordRequest.java
@@ -1,5 +1,6 @@
 package com.emotion.dto.request;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 
@@ -24,6 +25,7 @@ public class ResetPasswordRequest extends BaseRequest {
      */
     @NotBlank(message = "手机号不能为空")
     @Pattern(regexp = "^1[3-9]\\d{9}$", message = "手机号格式不正确")
+    @Schema(description = "手机号")
     private String phone;
 
     /**
@@ -31,12 +33,14 @@ public class ResetPasswordRequest extends BaseRequest {
      */
     @NotBlank(message = "新密码不能为空")
     @Size(min = 6, max = 20, message = "新密码长度必须在6-20个字符之间")
+    @Schema(description = "新密码")
     private String newPassword;
 
     /**
      * 验证码（本期固定为 123456）
      */
     @NotBlank(message = "验证码不能为空")
+    @Schema(description = "验证码")
     private String captcha;
 }
 
diff --git a/backend-single/src/main/java/com/emotion/dto/request/UserCreateRequest.java b/backend-single/src/main/java/com/emotion/dto/request/UserCreateRequest.java
index 941eef2..82cd53c 100644
--- a/backend-single/src/main/java/com/emotion/dto/request/UserCreateRequest.java
+++ b/backend-single/src/main/java/com/emotion/dto/request/UserCreateRequest.java
@@ -1,5 +1,6 @@
 package com.emotion.dto.request;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 
@@ -23,31 +24,36 @@ public class UserCreateRequest extends BaseRequest {
      */
     @NotBlank(message = "账号不能为空")
     @Size(min = 3, max = 20, message = "账号长度必须在3-20个字符之间")
+    @Schema(description = "用户账号")
     private String account;
-    
+
     /**
      * 用户名
      */
     @NotBlank(message = "用户名不能为空")
     @Size(min = 2, max = 20, message = "用户名长度必须在2-20个字符之间")
+    @Schema(description = "用户名")
     private String username;
-    
+
     /**
      * 密码
      */
     @NotBlank(message = "密码不能为空")
     @Size(min = 6, max = 20, message = "密码长度必须在6-20个字符之间")
+    @Schema(description = "初始密码")
     private String password;
-    
+
     /**
      * 邮箱
      */
     @Email(message = "邮箱格式不正确")
+    @Schema(description = "邮箱")
     private String email;
-    
+
     /**
      * 手机号
      */
     @Pattern(regexp = "^1[3-9]\\d{9}$", message = "手机号格式不正确")
+    @Schema(description = "手机号")
     private String phone;
 }
diff --git a/backend-single/src/main/java/com/emotion/dto/request/UserPageRequest.java b/backend-single/src/main/java/com/emotion/dto/request/UserPageRequest.java
index c9c5e7b..9a23fae 100644
--- a/backend-single/src/main/java/com/emotion/dto/request/UserPageRequest.java
+++ b/backend-single/src/main/java/com/emotion/dto/request/UserPageRequest.java
@@ -1,5 +1,6 @@
 package com.emotion.dto.request;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import com.emotion.common.BasePageRequest;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
@@ -20,34 +21,40 @@ public class UserPageRequest extends BasePageRequest {
      * 账号
      */
     @Size(max = 20, message = "账号长度不能超过20个字符")
+    @Schema(description = "账号（模糊搜索）")
     private String account;
 
     /**
      * 用户名
      */
     @Size(max = 20, message = "用户名长度不能超过20个字符")
+    @Schema(description = "用户名（模糊搜索）")
     private String username;
 
     /**
      * 邮箱
      */
     @Size(max = 100, message = "邮箱长度不能超过100个字符")
+    @Schema(description = "邮箱（模糊搜索）")
     private String email;
 
     /**
      * 手机号
      */
     @Size(max = 20, message = "手机号长度不能超过20个字符")
+    @Schema(description = "手机号（模糊搜索）")
     private String phone;
 
     /**
      * 状态
      */
+    @Schema(description = "状态")
     private Integer status;
 
     /**
      * 会员等级
      */
     @Size(max = 20, message = "会员等级长度不能超过20个字符")
+    @Schema(description = "会员等级")
     private String memberLevel;
 }
\ No newline at end of file
diff --git a/backend-single/src/main/java/com/emotion/dto/request/UserProfileUpdateRequest.java b/backend-single/src/main/java/com/emotion/dto/request/UserProfileUpdateRequest.java
index 29a71f7..2f79131 100644
--- a/backend-single/src/main/java/com/emotion/dto/request/UserProfileUpdateRequest.java
+++ b/backend-single/src/main/java/com/emotion/dto/request/UserProfileUpdateRequest.java
@@ -1,5 +1,6 @@
 package com.emotion.dto.request;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 
 import javax.validation.constraints.Email;
@@ -20,6 +21,7 @@ public class UserProfileUpdateRequest {
      * 昵称
      */
     @Size(max = 50, message = "昵称长度不能超过50个字符")
+    @Schema(description = "昵称")
     private String nickname;
     
     /**
@@ -27,34 +29,40 @@ public class UserProfileUpdateRequest {
      */
     @Email(message = "邮箱格式不正确")
     @Size(max = 100, message = "邮箱长度不能超过100个字符")
+    @Schema(description = "邮箱")
     private String email;
     
     /**
      * 手机号
      */
     @Pattern(regexp = "^1[3-9]\\d{9}$", message = "手机号格式不正确")
+    @Schema(description = "手机号")
     private String phone;
     
     /**
      * 头像URL
      */
     @Size(max = 500, message = "头像URL长度不能超过500个字符")
+    @Schema(description = "头像URL")
     private String avatar;
-    
+
     /**
      * 生日
      */
+    @Schema(description = "生日")
     private LocalDate birthDate;
-    
+
     /**
      * 所在地
      */
     @Size(max = 100, message = "所在地长度不能超过100个字符")
+    @Schema(description = "所在地")
     private String location;
-    
+
     /**
      * 个人简介
      */
     @Size(max = 500, message = "个人简介长度不能超过500个字符")
+    @Schema(description = "个人简介")
     private String bio;
 }
diff --git a/backend-single/src/main/java/com/emotion/dto/request/UserUpdateRequest.java b/backend-single/src/main/java/com/emotion/dto/request/UserUpdateRequest.java
index 6b12ef5..f98fb05 100644
--- a/backend-single/src/main/java/com/emotion/dto/request/UserUpdateRequest.java
+++ b/backend-single/src/main/java/com/emotion/dto/request/UserUpdateRequest.java
@@ -1,5 +1,6 @@
 package com.emotion.dto.request;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 
 import javax.validation.constraints.Email;
@@ -21,18 +22,21 @@ public class UserUpdateRequest {
      * ID
      */
     @NotBlank(message = "ID不能为空")
+    @Schema(description = "用户ID")
     private String id;
 
     /**
      * 用户名
      */
     @Size(max = 50, message = "用户名长度不能超过50个字符")
+    @Schema(description = "用户名")
     private String username;
 
     /**
      * 昵称
      */
     @Size(max = 50, message = "昵称长度不能超过50个字符")
+    @Schema(description = "昵称")
     private String nickname;
 
     /**
@@ -40,45 +44,53 @@ public class UserUpdateRequest {
      */
     @Email(message = "邮箱格式不正确")
     @Size(max = 100, message = "邮箱长度不能超过100个字符")
+    @Schema(description = "邮箱")
     private String email;
 
     /**
      * 手机号
      */
     @Pattern(regexp = "^1[3-9]\\d{9}$", message = "手机号格式不正确")
+    @Schema(description = "手机号")
     private String phone;
 
     /**
      * 头像URL
      */
     @Size(max = 500, message = "头像URL长度不能超过500个字符")
+    @Schema(description = "头像URL")
     private String avatar;
 
     /**
      * 生日
      */
+    @Schema(description = "生日")
     private LocalDate birthDate;
 
     /**
      * 所在地
      */
     @Size(max = 100, message = "所在地长度不能超过100个字符")
+    @Schema(description = "所在地")
     private String location;
 
     /**
      * 个人简介
      */
     @Size(max = 500, message = "个人简介长度不能超过500个字符")
+    @Schema(description = "个人简介")
     private String bio;
 
     /**
      * 状态
      */
+    @Schema(description = "状态")
     private Integer status;
 
     /**
      * 会员等级
      */
     @Size(max = 20, message = "会员等级长度不能超过20个字符")
+    @Schema(description = "会员等级")
     private String memberLevel;
 }
\ No newline at end of file
diff --git a/backend-single/src/main/java/com/emotion/dto/request/analytics/AnalyticsQueryRequest.java b/backend-single/src/main/java/com/emotion/dto/request/analytics/AnalyticsQueryRequest.java
index cd7bdf0..82a9999 100644
--- a/backend-single/src/main/java/com/emotion/dto/request/analytics/AnalyticsQueryRequest.java
+++ b/backend-single/src/main/java/com/emotion/dto/request/analytics/AnalyticsQueryRequest.java
@@ -1,5 +1,6 @@
 package com.emotion.dto.request.analytics;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 import org.springframework.format.annotation.DateTimeFormat;
 
@@ -10,16 +11,22 @@ import java.util.List;
 public class AnalyticsQueryRequest {
 
     @DateTimeFormat(pattern = "yyyy-MM-dd")
+    @Schema(description = "开始日期")
     private LocalDate startDate;
 
     @DateTimeFormat(pattern = "yyyy-MM-dd")
+    @Schema(description = "结束日期")
     private LocalDate endDate;
 
+    @Schema(description = "时间粒度（day/week/month）")
     private String granularity;
 
+    @Schema(description = "事件名称列表（过滤条件）")
     private List<String> eventNames;
 
+    @Schema(description = "事件类型（过滤条件）")
     private String eventType;
 
+    @Schema(description = "返回结果数量限制")
     private Integer limit;
 }