diff --git a/DouyinApi.Api/Controllers/MiniProgram/NamingController.cs b/DouyinApi.Api/Controllers/MiniProgram/NamingController.cs
new file mode 100644
index 0000000..cc72070
--- /dev/null
+++ b/DouyinApi.Api/Controllers/MiniProgram/NamingController.cs
@@ -0,0 +1,114 @@
+using System;
+using System.Globalization;
+using System.Threading.Tasks;
+using DouyinApi.Controllers;
+using DouyinApi.IServices;
+using DouyinApi.Model.Naming;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Logging;
+
+namespace DouyinApi.Api.Controllers.MiniProgram
+{
+    [Produces("application/json")]
+    [Route("api/naming")]
+    [AllowAnonymous]
+    public class NamingController : BaseApiController
+    {
+        private readonly INamingService _namingService;
+        private readonly ILogger<NamingController> _logger;
+
+        public NamingController(INamingService namingService, ILogger<NamingController> logger)
+        {
+            _namingService = namingService;
+            _logger = logger;
+        }
+
+        [HttpPost("validate-surname")]
+        public async Task<IActionResult> ValidateSurname([FromBody] SurnameValidationRequest request)
+        {
+            if (!ModelState.IsValid)
+            {
+                return Ok(new { isValid = false, message = "请输入合法姓氏" });
+            }
+
+            var surname = request.Surname?.Trim() ?? string.Empty;
+            var isValid = await _namingService.ValidateSurnameAsync(surname);
+            return Ok(new
+            {
+                isValid,
+                message = isValid ? string.Empty : "请输入合法姓氏"
+            });
+        }
+
+        [HttpPost("generate")]
+        public async Task<IActionResult> Generate([FromBody] NamingRequest request)
+        {
+            if (!ModelState.IsValid)
+            {
+                return BadRequest(new { message = "参数不合法" });
+            }
+
+            var normalizedRequest = NormalizeRequest(request);
+
+            try
+            {
+                var response = await _namingService.GenerateNamesAsync(normalizedRequest);
+                return Ok(new { results = response.Results });
+            }
+            catch (ArgumentException ex) when (ex.Message == "invalid_surname")
+            {
+                return BadRequest(new { message = "INVALID_SURNAME" });
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Generate naming failed");
+                return StatusCode(500, new { message = "GENERATION_FAILED" });
+            }
+        }
+
+        private static NamingRequest NormalizeRequest(NamingRequest request)
+        {
+            var normalized = new NamingRequest
+            {
+                Surname = request.Surname?.Trim() ?? string.Empty,
+                Gender = string.IsNullOrWhiteSpace(request.Gender) ? "male" : request.Gender.Trim().ToLowerInvariant(),
+                NameLength = string.IsNullOrWhiteSpace(request.NameLength) ? "double" : request.NameLength.Trim().ToLowerInvariant(),
+                BirthDate = NormalizeDate(request.BirthDate),
+                BirthTime = NormalizeTime(request.BirthTime)
+            };
+
+            return normalized;
+        }
+
+        private static string NormalizeDate(string date)
+        {
+            if (string.IsNullOrWhiteSpace(date))
+            {
+                return DateTime.UtcNow.ToString("yyyy-MM-dd", CultureInfo.InvariantCulture);
+            }
+
+            if (DateTime.TryParse(date, out var parsed))
+            {
+                return parsed.ToString("yyyy-MM-dd", CultureInfo.InvariantCulture);
+            }
+
+            return date;
+        }
+
+        private static string NormalizeTime(string time)
+        {
+            if (string.IsNullOrWhiteSpace(time))
+            {
+                return string.Empty;
+            }
+
+            if (TimeSpan.TryParse(time, out var parsed))
+            {
+                return DateTime.Today.Add(parsed).ToString("HH:mm", CultureInfo.InvariantCulture);
+            }
+
+            return time;
+        }
+    }
+}
diff --git a/DouyinApi.IServices/INamingService.cs b/DouyinApi.IServices/INamingService.cs
new file mode 100644
index 0000000..cd5a683
--- /dev/null
+++ b/DouyinApi.IServices/INamingService.cs
@@ -0,0 +1,13 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using DouyinApi.Model.Naming;
+
+namespace DouyinApi.IServices
+{
+    public interface INamingService
+    {
+        Task<bool> ValidateSurnameAsync(string surname);
+
+        Task<NamingResponse> GenerateNamesAsync(NamingRequest request);
+    }
+}
diff --git a/DouyinApi.Model/Naming/NamingRequest.cs b/DouyinApi.Model/Naming/NamingRequest.cs
new file mode 100644
index 0000000..2d64538
--- /dev/null
+++ b/DouyinApi.Model/Naming/NamingRequest.cs
@@ -0,0 +1,26 @@
+using System;
+using System.ComponentModel.DataAnnotations;
+
+namespace DouyinApi.Model.Naming
+{
+    public class NamingRequest
+    {
+        [Required]
+        [MinLength(1)]
+        [MaxLength(2)]
+        public string Surname { get; set; } = string.Empty;
+
+        [Required]
+        [RegularExpression("male|female", ErrorMessage = "gender_invalid")]
+        public string Gender { get; set; } = "male";
+
+        [Required]
+        public string BirthDate { get; set; } = string.Empty;
+
+        public string BirthTime { get; set; } = string.Empty;
+
+        [Required]
+        [RegularExpression("single|double", ErrorMessage = "name_length_invalid")]
+        public string NameLength { get; set; } = "double";
+    }
+}
diff --git a/DouyinApi.Model/Naming/NamingResponse.cs b/DouyinApi.Model/Naming/NamingResponse.cs
new file mode 100644
index 0000000..1fcf4b1
--- /dev/null
+++ b/DouyinApi.Model/Naming/NamingResponse.cs
@@ -0,0 +1,16 @@
+using System.Collections.Generic;
+
+namespace DouyinApi.Model.Naming
+{
+    public class NamingResponse
+    {
+        public IEnumerable<NamingSuggestion> Results { get; set; } = new List<NamingSuggestion>();
+    }
+
+    public class NamingSuggestion
+    {
+        public string Name { get; set; } = string.Empty;
+
+        public string Meaning { get; set; } = string.Empty;
+    }
+}
diff --git a/DouyinApi.Model/Naming/SurnameValidationRequest.cs b/DouyinApi.Model/Naming/SurnameValidationRequest.cs
new file mode 100644
index 0000000..b01f573
--- /dev/null
+++ b/DouyinApi.Model/Naming/SurnameValidationRequest.cs
@@ -0,0 +1,12 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace DouyinApi.Model.Naming
+{
+    public class SurnameValidationRequest
+    {
+        [Required]
+        [MinLength(1)]
+        [MaxLength(2)]
+        public string Surname { get; set; } = string.Empty;
+    }
+}
diff --git a/DouyinApi.Services/NamingService.cs b/DouyinApi.Services/NamingService.cs
new file mode 100644
index 0000000..affa4b6
--- /dev/null
+++ b/DouyinApi.Services/NamingService.cs
@@ -0,0 +1,204 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using DouyinApi.IServices;
+using DouyinApi.Model.Naming;
+
+namespace DouyinApi.Services
+{
+    public class NamingService : INamingService
+    {
+        private static readonly Regex SurnameRegex = new(@"^[\u4e00-\u9fa5]{1,2}$", RegexOptions.Compiled);
+
+        private static readonly IReadOnlyList<char> MaleCharacters = new[]
+        {
+            '辰', '昇', '曜', '瀚', '宸', '沐', '景', '霖', '晟', '玥', '骁', '煜', '澜', '珩', '聿', '澄', '钧'
+        };
+
+        private static readonly IReadOnlyList<char> FemaleCharacters = new[]
+        {
+            '瑶', '霏', '婉', '绮', '璇', '芷', '乂', '灵', '沁', '语', '晴', '若', '绫', '芸', '络', '梦', '澜'
+        };
+
+        private static readonly IReadOnlyList<char> NeutralCharacters = new[]
+        {
+            '玄', '洛', '岚', '澈', '岑', '泓', '澜', '烨', '闻', '黎', '墨', '夙', '羲', '霆', '渊', '翎'
+        };
+
+        private static readonly Dictionary<char, string> CharacterMeanings = new()
+        {
+            ['辰'] = "辰曜星光",
+            ['昇'] = "旭日东升",
+            ['曜'] = "光耀万里",
+            ['瀚'] = "瀚海无垠",
+            ['宸'] = "王者气度",
+            ['沐'] = "沐浴祥瑞",
+            ['景'] = "景行德高",
+            ['霖'] = "甘霖润泽",
+            ['晟'] = "光明昌盛",
+            ['玥'] = "王者之玉",
+            ['骁'] = "英勇不屈",
+            ['煜'] = "照耀四方",
+            ['澜'] = "碧波浩渺",
+            ['珩'] = "璞玉内敛",
+            ['聿'] = "持守正道",
+            ['澄'] = "心境澄明",
+            ['钧'] = "乾坤平衡",
+            ['瑶'] = "瑶光琼华",
+            ['霏'] = "霏霏瑞雪",
+            ['婉'] = "柔婉清扬",
+            ['绮'] = "绮丽灵动",
+            ['璇'] = "璇玑回转",
+            ['芷'] = "香草高洁",
+            ['乂'] = "安然有序",
+            ['灵'] = "灵秀夺目",
+            ['沁'] = "沁心甘露",
+            ['语'] = "言语有光",
+            ['晴'] = "晴空暖阳",
+            ['若'] = "若水明澈",
+            ['绫'] = "绫罗轻盈",
+            ['芸'] = "芸芸芳草",
+            ['络'] = "络绎华彩",
+            ['梦'] = "梦想成真",
+            ['玄'] = "玄妙莫测",
+            ['洛'] = "洛水灵韵",
+            ['岚'] = "山岚清气",
+            ['澈'] = "心境通透",
+            ['岑'] = "峻岭深沉",
+            ['泓'] = "泓泉清澈",
+            ['烨'] = "火光通明",
+            ['闻'] = "名闻四海",
+            ['黎'] = "黎明曙光",
+            ['墨'] = "墨香书韵",
+            ['夙'] = "夙愿成真",
+            ['羲'] = "伏羲灵息",
+            ['霆'] = "雷霆万钧",
+            ['渊'] = "渊源深厚",
+            ['翎'] = "翎羽轻灵"
+        };
+
+        private static readonly string[] Blessings =
+        {
+            "引瑞气入怀，扶摇直上",
+            "承先祖之德，守家风之和",
+            "与四时共鸣，步步生辉",
+            "纳天地灵气，行稳致远",
+            "凝万象之精魄，护佑昌隆",
+            "藏锋于怀，静待时来",
+            "兼济天下情怀，拥抱广阔未来"
+        };
+
+        public Task<bool> ValidateSurnameAsync(string surname)
+        {
+            if (string.IsNullOrWhiteSpace(surname))
+            {
+                return Task.FromResult(false);
+            }
+
+            return Task.FromResult(SurnameRegex.IsMatch(surname.Trim()));
+        }
+
+        public async Task<NamingResponse> GenerateNamesAsync(NamingRequest request)
+        {
+            if (request == null)
+            {
+                throw new ArgumentNullException(nameof(request));
+            }
+
+            if (!await ValidateSurnameAsync(request.Surname))
+            {
+                throw new ArgumentException("invalid_surname");
+            }
+
+            var seed = CreateSeed(request);
+            var random = new Random(seed);
+            var pool = request.Gender == "female" ? FemaleCharacters : MaleCharacters;
+            var fallbackPool = NeutralCharacters;
+
+            var suggestions = new List<NamingSuggestion>();
+            var attempts = 0;
+
+            while (suggestions.Count < 5 && attempts < 100)
+            {
+                attempts++;
+                var given = GenerateGivenName(request.NameLength, pool, fallbackPool, random);
+                var fullName = $"{request.Surname}{given}";
+                if (suggestions.Any(s => s.Name == fullName))
+                {
+                    continue;
+                }
+
+                var meaning = ComposeMeaning(request.Surname, given, request.BirthDate, request.BirthTime, random);
+                suggestions.Add(new NamingSuggestion
+                {
+                    Name = fullName,
+                    Meaning = meaning
+                });
+            }
+
+            if (!suggestions.Any())
+            {
+                suggestions.Add(new NamingSuggestion
+                {
+                    Name = $"{request.Surname}玄珏",
+                    Meaning = "玄珠映月，珏石生辉，与生辰相应，寓意行稳致远"
+                });
+            }
+
+            return new NamingResponse
+            {
+                Results = suggestions
+            };
+        }
+
+        private static int CreateSeed(NamingRequest request)
+        {
+            var raw = $"{request.Surname}-{request.Gender}-{request.BirthDate}-{request.BirthTime}-{request.NameLength}";
+            var bytes = SHA256.HashData(Encoding.UTF8.GetBytes(raw));
+            return Math.Abs(BitConverter.ToInt32(bytes, 0));
+        }
+
+        private static string GenerateGivenName(
+            string nameLength,
+            IReadOnlyList<char> primaryPool,
+            IReadOnlyList<char> fallbackPool,
+            Random random)
+        {
+            var buffer = new StringBuilder();
+            var length = nameLength == "single" ? 1 : 2;
+            for (var i = 0; i < length; i++)
+            {
+                var pool = (i == 0) ? primaryPool : fallbackPool;
+                buffer.Append(pool[random.Next(pool.Count)]);
+            }
+            return buffer.ToString();
+        }
+
+        private static string ComposeMeaning(string surname, string given, string birthDate, string birthTime, Random random)
+        {
+            var fragments = new List<string>();
+            foreach (var ch in given)
+            {
+                if (CharacterMeanings.TryGetValue(ch, out var desc))
+                {
+                    fragments.Add(desc);
+                }
+                else
+                {
+                    fragments.Add($"{ch}寓意祥瑞");
+                }
+            }
+
+            var blessing = Blessings[random.Next(Blessings.Length)];
+            var birthFragment = string.IsNullOrWhiteSpace(birthTime)
+                ? $"{birthDate}之辰"
+                : $"{birthDate} {birthTime} 时刻";
+
+            return $"{string.Join("，", fragments)}，与{surname}氏气脉相连，于{birthFragment}呼应，{blessing}。";
+        }
+    }
+}