feat(bazi): 八字页重构——空态示例排盘+字段术语表+文化声明，生辰档案绑定

- 八字页：未绑定生辰时展示虚构示例排盘(1990-08-08 10:30男)与15条字段说明，
  附传统文化声明文案；已绑定时支持多档案切换，排盘增强(十神/藏干/纳音/五行配色/命盘概览)
- 个人中心：新增生辰管理卡片，每用户免费绑定3个出生年月；登录改为真实微信登录
- 服务端：新增 BirthProfile 模型与 /api/user/birth-profiles 增删查接口，AutoMigrate 建表
- 前端：新增 birth-profile.js 本地存储优先+登录后云端双向同步
- 修复：个人中心 tabBar 页面入口误用 navigateTo 改为 switchTab

mini/pages/bazi/bazi.js

@@ -1,46 +1,33 @@
 const { birthInfoToBazi, analyzeElementBalance } = require('../../utils/core/index.js');
+const birthProfile = require('../../utils/birth-profile.js');
 
-Page({
-  data: {
-    gender: 'male',
-    birthDate: '1990-01-01',
-    birthTime: '12:00',
-    ziSect: 'lateZiNextDay',
-    bazi: null,
-    pillars: [],
-    elements: [],
-    elementAnalysis: {}
-  },
+// 空态演示用的示例生辰（虚构，仅作排盘样式展示）
+const DEMO_BIRTH = { year: 1990, month: 8, day: 8, hour: 10, minute: 30, gender: 'male', ziSect: 'lateZiNextDay' };
 
-  onLoad() {
-    // 尝试从本地存储恢复
-    const saved = wx.getStorageSync('lunar-bazi-input');
-    if (saved) {
-      this.setData(saved);
-    }
-  },
+// 五行 → 样式类名
+const ELEMENT_CLASS = { '木': 'el-wood', '火': 'el-fire', '土': 'el-earth', '金': 'el-metal', '水': 'el-water' };
 
-  setGender(e) {
-    this.setData({ gender: e.currentTarget.dataset.g });
-  },
-
-  setZiSect(e) {
-    this.setData({ ziSect: e.currentTarget.dataset.s });
-  },
-
-  onDateChange(e) {
-    this.setData({ birthDate: e.detail.value });
-  },
-
-  onTimeChange(e) {
-    this.setData({ birthTime: e.detail.value });
-  },
-
-  calculate() {
-    const { gender, birthDate, birthTime, ziSect } = this.data;
-    const [year, month, day] = birthDate.split('-').map(Number);
-    const [hour, minute] = birthTime.split(':').map(Number);
+// 八字知识词条：逐字段详细说明
+const GLOSSARY = [
+  { term: '四柱八字', desc: '用天干地支记录出生年、月、日、时的方法，年、月、日、时各一对干支，合称"四柱"，共八个字，故称"八字"。它源于古代干支纪时体系，是传统历法文化的一部分。' },
+  { term: '天干地支', desc: '天干共十个（甲乙丙丁戊己庚辛壬癸），地支共十二个（子丑寅卯辰巳午未申酉戌亥），是古人用于纪年、纪月、纪日、纪时的符号系统，也是传统历法的基础。' },
+  { term: '年柱', desc: '出生年份的干支。传统上以立春为界划分年份（立春前出生按上一年）。年柱在民俗说法中对应祖辈与少年时期。' },
+  { term: '月柱', desc: '出生月份的干支。月份以节气划分（如立春至惊蛰为正月），并非公历或农历的自然月。民俗说法中对应父母与青年时期。' },
+  { term: '日柱', desc: '出生当日的干支，按六十甲子循环纪日。日柱的天干代表本人（日主），是整个命盘分析的核心。' },
+  { term: '时柱', desc: '出生时辰的干支。古人将一昼夜分为十二个时辰，每个时辰合今两小时（如子时为 23:00-01:00）。' },
+  { term: '日主', desc: '日柱的天干，代表命主本人。日主的五行属性（木火土金水）是分析命盘五行强弱与十神关系的出发点。' },
+  { term: '十神', desc: '以日主为参照，按五行生克关系对其他干支的十种称谓：比肩、劫财、食神、伤官、偏财、正财、七杀、正官、偏印、正印。它是古代的一种关系分类符号，用于描述干支之间的生克比和。' },
+  { term: '五行', desc: '木、火、土、金、水五种基本元素，源于古代哲学，认为万物由五行构成并相生相克（木生火、火生土、土生金、金生水、水生木；木克土、土克水、水克火、火克金、金克木）。五行分析统计八字中各元素的数量与强弱。' },
+  { term: '藏干', desc: '又称"人元"，指每个地支内部按传统规则所含的一个至三个天干。例如寅中藏甲、丙、戊。排盘时作为辅助信息列出。' },
+  { term: '纳音', desc: '将六十甲子两两配对归入五行所得的三十种称谓，如"甲子乙丑海中金"、"丙寅丁卯炉中火"。年命纳音（年柱纳音）在民俗中常被用来称呼人的"命"，如"金命"、"火命"。' },
+  { term: '空亡', desc: '六十甲子分为六旬，每旬十个干支配十二地支，余下两个地支无天干相配，称为该旬"空亡"。这是干支纪法本身的结构性概念，此处仅作历法知识展示。' },
+  { term: '大运', desc: '传统上以月柱为基础、按十年一换的节奏推演出的干支序列，用来描述人生不同阶段的节律。属于传统民俗推演方法，供文化了解。' },
+  { term: '流年', desc: '即每一年的干支（如 2026 年为丙午年）。传统做法将流年与本命干支对照，观察逐年的变化关系。' },
+  { term: '子时流派', desc: '子时（23:00-01:00）横跨两天，晚子时（23:00-24:00）出生者的日柱按当天还是次日起算，历代流派说法不一。可在"我的-偏好设置"中选择。' }
+];
 
+/** 根据出生信息构建排盘展示数据 */
+function buildChart({ year, month, day, hour, minute, gender, ziSect }) {
   const bazi = birthInfoToBazi({ year, month, day, hour, minute, gender, ziSect });
   const elementAnalysis = analyzeElementBalance(bazi.eightChar);
 
@@ -49,27 +36,115 @@ Page({
     { label: '月柱', ...bazi.eightChar.monthPillar },
     { label: '日柱', ...bazi.eightChar.dayPillar },
     { label: '时柱', ...bazi.eightChar.hourPillar }
-    ];
+  ].map(p => ({
+    label: p.label,
+    ganzhi: p.ganzhi,
+    tenStar: p.tenStar || '日主',
+    heavenStem: p.heavenStem,
+    earthBranch: p.earthBranch,
+    stemClass: ELEMENT_CLASS[p.elementStem] || '',
+    branchClass: ELEMENT_CLASS[p.elementBranch] || '',
+    hideStems: (p.hideStems || []).map(h => h.stem + (h.tenStar ? `(${h.tenStar})` : '')).join(' '),
+    nayin: p.nayin
+  }));
 
   const total = elementAnalysis.total || 1;
   const elements = [
-      { name: '木', count: elementAnalysis.wood, percent: Math.round(elementAnalysis.wood / total * 100) },
-      { name: '火', count: elementAnalysis.fire, percent: Math.round(elementAnalysis.fire / total * 100) },
-      { name: '土', count: elementAnalysis.earth, percent: Math.round(elementAnalysis.earth / total * 100) },
-      { name: '金', count: elementAnalysis.metal, percent: Math.round(elementAnalysis.metal / total * 100) },
-      { name: '水', count: elementAnalysis.water, percent: Math.round(elementAnalysis.water / total * 100) }
+    { name: '木', count: elementAnalysis.wood, percent: Math.round(elementAnalysis.wood / total * 100), cls: 'el-wood' },
+    { name: '火', count: elementAnalysis.fire, percent: Math.round(elementAnalysis.fire / total * 100), cls: 'el-fire' },
+    { name: '土', count: elementAnalysis.earth, percent: Math.round(elementAnalysis.earth / total * 100), cls: 'el-earth' },
+    { name: '金', count: elementAnalysis.metal, percent: Math.round(elementAnalysis.metal / total * 100), cls: 'el-metal' },
+    { name: '水', count: elementAnalysis.water, percent: Math.round(elementAnalysis.water / total * 100), cls: 'el-water' }
   ];
 
-    this.setData({ bazi, pillars, elements, elementAnalysis });
+  return { bazi, pillars, elements, elementAnalysis };
+}
 
-    // 保存输入
-    wx.setStorageSync('lunar-bazi-input', { gender, birthDate, birthTime, ziSect });
-    // 保存八字供运势页使用
-    wx.setStorageSync('lunar-user-bazi', bazi);
+Page({
+  data: {
+    isDemo: true,
+    profiles: [],
+    activeProfileId: '',
+    profile: null,
+    bazi: null,
+    pillars: [],
+    elements: [],
+    elementAnalysis: {},
+    glossary: GLOSSARY,
+    showGlossary: false
   },
 
-  reset() {
-    this.setData({ bazi: null });
+  onShow() {
+    this.refresh();
+  },
+
+  refresh() {
+    const render = () => {
+      const profiles = birthProfile.getProfiles();
+      if (profiles.length === 0) {
+        this.showDemo();
+      } else {
+        this.showProfile(profiles, birthProfile.getActiveProfile());
+      }
+    };
+    // 已登录时先同步云端档案，失败静默回退本地
+    if (birthProfile.isLoggedIn()) {
+      birthProfile.syncFromServer().then(render).catch(render);
+    } else {
+      render();
+    }
+  },
+
+  /** 空态：展示示例排盘 */
+  showDemo() {
+    const chart = buildChart(DEMO_BIRTH);
+    this.setData({
+      isDemo: true,
+      profiles: [],
+      activeProfileId: '',
+      profile: null,
+      showGlossary: true,
+      ...chart
+    });
+  },
+
+  /** 已绑定：展示所选档案的排盘 */
+  showProfile(profiles, profile) {
+    if (!profile) return;
+    const [year, month, day] = profile.birthday.split('-').map(Number);
+    const [hour, minute] = profile.birthTime.split(':').map(Number);
+    const settings = wx.getStorageSync('lunar-settings') || {};
+    const chart = buildChart({
+      year, month, day, hour, minute,
+      gender: profile.gender,
+      ziSect: settings.ziHourSect || 'lateZiNextDay'
+    });
+    // 保存八字供运势页使用
+    wx.setStorageSync('lunar-user-bazi', chart.bazi);
+    this.setData({
+      isDemo: false,
+      profiles,
+      activeProfileId: profile.id,
+      profile,
+      showGlossary: false,
+      ...chart
+    });
+  },
+
+  selectProfile(e) {
+    const id = e.currentTarget.dataset.id;
+    const profile = this.data.profiles.find(p => p.id === id);
+    if (!profile) return;
+    birthProfile.setActiveProfile(id);
+    this.showProfile(this.data.profiles, profile);
+  },
+
+  toggleGlossary() {
+    this.setData({ showGlossary: !this.data.showGlossary });
+  },
+
+  goSettings() {
+    wx.switchTab({ url: '/pages/settings/settings' });
   },
 
   goFortune() {

mini/pages/bazi/bazi.wxml

@@ -1,51 +1,83 @@
 <view class="container">
-  <!-- 输入表单 -->
-  <view class="card" wx:if="{{!bazi}}">
-    <view class="section-title">输入出生信息</view>
+  <!-- 文化声明 -->
+  <view class="culture-card">
+    <view class="culture-title">八字 · 传统历法文化</view>
+    <view class="culture-text">八字（四柱）是中国传统文化的重要组成部分，源自古人观测天象、制定历法的干支纪时体系与五行哲学思想，属于传统民俗文化与历法知识范畴，不是封建迷信。本页面仅按传统历法规则进行排盘展示与知识科普，内容供传统文化学习与娱乐参考，不构成任何人生决策建议。</view>
+  </view>
 
-    <view class="form-item">
-      <text class="form-label">性别</text>
-      <view class="flex gap-2">
-        <view class="btn-outline {{gender === 'male' ? 'active' : ''}}" bindtap="setGender" data-g="male">男</view>
-        <view class="btn-outline {{gender === 'female' ? 'active' : ''}}" bindtap="setGender" data-g="female">女</view>
+  <!-- 空态：示例提示 + 绑定入口 -->
+  <block wx:if="{{isDemo}}">
+    <view class="card empty-card">
+      <view class="empty-title">你还没有绑定生辰信息</view>
+      <view class="empty-desc">下方是一份示例排盘，帮助你了解八字页面的内容。在个人中心可免费绑定 3 个出生年月（本人、家人），绑定后即可查看专属排盘。</view>
+      <view class="btn-primary text-center mt-2" bindtap="goSettings">去绑定我的生辰</view>
+    </view>
+    <view class="demo-banner">
+      <text class="demo-tag">示例</text>
+      <text class="demo-text">以下排盘基于虚构生辰（1990-08-08 10:30 男），仅演示页面效果</text>
+    </view>
+  </block>
+
+  <!-- 已绑定：档案选择 -->
+  <view class="card" wx:if="{{!isDemo}}">
+    <view class="section-title">我的生辰</view>
+    <view class="flex gap-2 profile-chips">
+      <view
+        class="profile-chip {{item.id === activeProfileId ? 'active' : ''}}"
+        wx:for="{{profiles}}"
+        wx:key="id"
+        bindtap="selectProfile"
+        data-id="{{item.id}}"
+      >{{item.name}}</view>
+      <view class="profile-chip add-chip" bindtap="goSettings">管理 ›</view>
+    </view>
+    <view class="text-xs text-muted mt-1">
+      {{profile.name}} · {{profile.gender === 'female' ? '女' : '男'}} · 公历 {{profile.birthday}} {{profile.birthTime}}
     </view>
   </view>
 
-    <view class="form-item">
-      <text class="form-label">出生日期</text>
-      <picker mode="date" value="{{birthDate}}" bindchange="onDateChange">
-        <view class="picker-input">{{birthDate}}</view>
-      </picker>
-    </view>
-
-    <view class="form-item">
-      <text class="form-label">出生时间</text>
-      <picker mode="time" value="{{birthTime}}" bindchange="onTimeChange">
-        <view class="picker-input">{{birthTime}}</view>
-      </picker>
-    </view>
-
-    <view class="form-item">
-      <text class="form-label">子时流派</text>
-      <view class="flex gap-2">
-        <view class="btn-outline {{ziSect === 'lateZiNextDay' ? 'active' : ''}}" bindtap="setZiSect" data-s="lateZiNextDay">晚子时日柱算次日</view>
-        <view class="btn-outline {{ziSect === 'lateZiSameDay' ? 'active' : ''}}" bindtap="setZiSect" data-s="lateZiSameDay">晚子时日柱算当日</view>
-      </view>
-    </view>
-
-    <view class="btn-primary mt-2" bindtap="calculate">排盘</view>
-  </view>
-
-  <!-- 八字结果 -->
-  <block wx:if="{{bazi}}">
-    <!-- 四柱 -->
+  <!-- 四柱八字 -->
   <view class="card">
     <view class="section-title">四柱八字</view>
     <view class="grid grid-cols-4 gap-2">
       <view class="pillar" wx:for="{{pillars}}" wx:key="label">
         <text class="pillar-label">{{item.label}}</text>
-          <text class="pillar-ganzhi">{{item.ganzhi}}</text>
-          <text class="pillar-ten">{{item.tenStar || '日主'}}</text>
+        <text class="pillar-ten">{{item.tenStar}}</text>
+        <text class="pillar-char {{item.stemClass}}">{{item.heavenStem}}</text>
+        <text class="pillar-char {{item.branchClass}}">{{item.earthBranch}}</text>
+        <text class="pillar-hide" wx:if="{{item.hideStems}}">藏 {{item.hideStems}}</text>
+        <text class="pillar-nayin">{{item.nayin}}</text>
+      </view>
+    </view>
+  </view>
+
+  <!-- 命盘概览 -->
+  <view class="card">
+    <view class="section-title">命盘概览</view>
+    <view class="meta-grid">
+      <view class="meta-item">
+        <text class="meta-label">日主</text>
+        <text class="meta-value">{{bazi.eightChar.dayMaster}}</text>
+      </view>
+      <view class="meta-item">
+        <text class="meta-label">五行旺</text>
+        <text class="meta-value">{{elementAnalysis.dominant}}</text>
+      </view>
+      <view class="meta-item">
+        <text class="meta-label">五行弱</text>
+        <text class="meta-value">{{elementAnalysis.weakest}}</text>
+      </view>
+      <view class="meta-item">
+        <text class="meta-label">空亡</text>
+        <text class="meta-value">{{bazi.eightChar.emptyBranches[0]}}{{bazi.eightChar.emptyBranches[1]}}</text>
+      </view>
+      <view class="meta-item">
+        <text class="meta-label">年柱纳音</text>
+        <text class="meta-value">{{pillars[0].nayin}}</text>
+      </view>
+      <view class="meta-item">
+        <text class="meta-label">五行均衡</text>
+        <text class="meta-value">{{elementAnalysis.isBalanced ? '较均衡' : '有偏旺'}}</text>
       </view>
     </view>
   </view>
@@ -57,19 +89,17 @@
       <view class="element-item" wx:for="{{elements}}" wx:key="name">
         <text class="element-name">{{item.name}}</text>
         <view class="element-track">
-            <view class="element-fill" style="width: {{item.percent}}%"></view>
+          <view class="element-fill {{item.cls}}" style="width: {{item.percent}}%"></view>
         </view>
         <text class="element-count">{{item.count}}</text>
       </view>
     </view>
-      <view class="mt-2 text-sm text-muted">
-        日主：{{bazi.eightChar.dayMaster}} |  dominant: {{elementAnalysis.dominant}} | weakest: {{elementAnalysis.weakest}}
-      </view>
+    <view class="mt-2 text-xs text-muted">按天干、地支计 1 分，藏干计 0.5 分；得分越高代表该五行在命盘中越突出。</view>
   </view>
 
   <!-- 大运 -->
   <view class="card">
-      <view class="section-title">大运</view>
+    <view class="section-title">大运（十年一步）</view>
     <scroll-view scroll-x class="scroll-x">
       <view class="flex gap-2">
         <view class="fortune-item" wx:for="{{bazi.decadeFortunes}}" wx:key="index">
@@ -95,10 +125,33 @@
     </scroll-view>
   </view>
 
-    <!-- 操作 -->
-    <view class="flex gap-2 mt-2">
-      <view class="btn-outline flex-1 text-center" bindtap="reset">重新排盘</view>
-      <view class="btn-primary flex-1 text-center" bindtap="goFortune">看运势</view>
+  <!-- 字段说明 -->
+  <view class="card">
+    <view class="glossary-header" bindtap="toggleGlossary">
+      <text class="section-title glossary-title">这些字段是什么意思？</text>
+      <text class="glossary-toggle">{{showGlossary ? '收起' : '展开'}}</text>
+    </view>
+    <block wx:if="{{showGlossary}}">
+      <view class="glossary-item" wx:for="{{glossary}}" wx:key="term">
+        <text class="glossary-term">{{item.term}}</text>
+        <text class="glossary-desc">{{item.desc}}</text>
       </view>
     </block>
   </view>
+
+  <!-- 底部操作 -->
+  <view class="flex gap-2 mt-2 bottom-actions">
+    <block wx:if="{{isDemo}}">
+      <view class="btn-primary flex-1 text-center" bindtap="goSettings">绑定生辰，查看我的排盘</view>
+    </block>
+    <block wx:else>
+      <view class="btn-outline flex-1 text-center" bindtap="goSettings">管理生辰</view>
+      <view class="btn-primary flex-1 text-center" bindtap="goFortune">看今日运势</view>
+    </block>
+  </view>
+
+  <!-- 底部免责声明 -->
+  <view class="disclaimer">
+    八字排盘为传统历法文化展示，内容仅供学习参考，请理性看待，切勿迷信。
+  </view>
+</view>

mini/pages/bazi/bazi.wxss

@@ -9,35 +9,103 @@
   color: #C41E3A;
 }
 
-.form-item {
-  margin-bottom: 24rpx;
+/* 文化声明卡片 */
+.culture-card {
+  background: linear-gradient(135deg, #C41E3A 0%, #8B1A2B 100%);
+  border-radius: 24rpx;
+  padding: 28rpx 24rpx;
+  margin-bottom: 16rpx;
 }
 
-.form-label {
+.culture-title {
+  color: #FFFFFF;
+  font-size: 32rpx;
+  font-weight: 700;
+  margin-bottom: 12rpx;
+}
+
+.culture-text {
+  color: rgba(255, 255, 255, 0.92);
+  font-size: 24rpx;
+  line-height: 1.7;
+}
+
+/* 空态卡片 */
+.empty-card {
+  text-align: center;
+}
+
+.empty-title {
+  font-size: 32rpx;
+  font-weight: 600;
+  color: #1A1A1A;
+  margin-bottom: 12rpx;
+}
+
+.empty-desc {
   font-size: 24rpx;
   color: #6B5E53;
-  margin-bottom: 8rpx;
-  display: block;
+  line-height: 1.7;
 }
 
-.picker-input {
-  padding: 20rpx;
-  background: #FFFBF5;
-  border-radius: 12rpx;
-  border: 1rpx solid #E8D5C4;
+/* 示例横幅 */
+.demo-banner {
+  display: flex;
+  align-items: center;
+  gap: 12rpx;
+  background: #FFF7E6;
+  border: 1rpx solid #F0D9A8;
+  border-radius: 16rpx;
+  padding: 16rpx 20rpx;
+  margin-bottom: 16rpx;
 }
 
-.btn-outline.active {
-  background: #C41E3A;
+.demo-tag {
+  flex-shrink: 0;
+  background: #D99A06;
   color: #FFFFFF;
-  border-color: #C41E3A;
+  font-size: 20rpx;
+  border-radius: 8rpx;
+  padding: 2rpx 12rpx;
 }
 
+.demo-text {
+  font-size: 22rpx;
+  color: #8A6D1A;
+  line-height: 1.5;
+}
+
+/* 档案选择 */
+.profile-chips {
+  flex-wrap: wrap;
+}
+
+.profile-chip {
+  padding: 10rpx 28rpx;
+  border-radius: 999rpx;
+  border: 2rpx solid #E8D5C4;
+  font-size: 26rpx;
+  color: #6B5E53;
+  background: #FFFFFF;
+}
+
+.profile-chip.active {
+  background: #C41E3A;
+  border-color: #C41E3A;
+  color: #FFFFFF;
+}
+
+.add-chip {
+  border-style: dashed;
+  color: #9E8E7E;
+}
+
+/* 四柱 */
 .pillar {
   display: flex;
   flex-direction: column;
   align-items: center;
-  padding: 20rpx;
+  padding: 16rpx 8rpx;
   background: #FFFBF5;
   border-radius: 12rpx;
 }
@@ -47,18 +115,69 @@
   color: #9E8E7E;
 }
 
-.pillar-ganzhi {
-  font-size: 36rpx;
-  font-weight: 700;
-  color: #C41E3A;
-  margin: 8rpx 0;
-}
-
 .pillar-ten {
   font-size: 20rpx;
   color: #6B5E53;
+  margin: 4rpx 0;
 }
 
+.pillar-char {
+  font-size: 44rpx;
+  font-weight: 700;
+  line-height: 1.2;
+  color: #1A1A1A;
+}
+
+.pillar-hide {
+  font-size: 18rpx;
+  color: #9E8E7E;
+  margin-top: 8rpx;
+  text-align: center;
+  word-break: break-all;
+}
+
+.pillar-nayin {
+  font-size: 18rpx;
+  color: #C41E3A;
+  margin-top: 4rpx;
+}
+
+/* 五行配色 */
+.el-wood { color: #2E7D32; }
+.el-fire { color: #C41E3A; }
+.el-earth { color: #8D6E63; }
+.el-metal { color: #B8860B; }
+.el-water { color: #1565C0; }
+
+/* 命盘概览 */
+.meta-grid {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+  gap: 16rpx;
+}
+
+.meta-item {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  background: #FFFBF5;
+  border-radius: 12rpx;
+  padding: 16rpx 8rpx;
+}
+
+.meta-label {
+  font-size: 20rpx;
+  color: #9E8E7E;
+}
+
+.meta-value {
+  font-size: 28rpx;
+  font-weight: 600;
+  color: #1A1A1A;
+  margin-top: 4rpx;
+}
+
+/* 五行分析 */
 .element-bar {
   display: flex;
   flex-direction: column;
@@ -79,23 +198,29 @@
 .element-track {
   flex: 1;
   height: 16rpx;
-  background: #E8D5C4;
+  background: #F0E6DA;
   border-radius: 8rpx;
   overflow: hidden;
 }
 
 .element-fill {
   height: 100%;
-  background: #C41E3A;
   border-radius: 8rpx;
 }
 
+.element-fill.el-wood { background: #2E7D32; }
+.element-fill.el-fire { background: #C41E3A; }
+.element-fill.el-earth { background: #8D6E63; }
+.element-fill.el-metal { background: #B8860B; }
+.element-fill.el-water { background: #1565C0; }
+
 .element-count {
   width: 60rpx;
   text-align: right;
   font-size: 24rpx;
 }
 
+/* 大运/流年 */
 .fortune-item {
   display: flex;
   flex-direction: column;
@@ -105,3 +230,55 @@
   border-radius: 12rpx;
   min-width: 160rpx;
 }
+
+/* 字段说明 */
+.glossary-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+}
+
+.glossary-title {
+  margin-bottom: 0;
+}
+
+.glossary-toggle {
+  font-size: 24rpx;
+  color: #9E8E7E;
+}
+
+.glossary-item {
+  padding: 16rpx 0;
+  border-bottom: 1rpx solid #F0E6DA;
+}
+
+.glossary-item:last-child {
+  border-bottom: none;
+}
+
+.glossary-term {
+  display: block;
+  font-size: 26rpx;
+  font-weight: 600;
+  color: #C41E3A;
+  margin-bottom: 6rpx;
+}
+
+.glossary-desc {
+  display: block;
+  font-size: 24rpx;
+  color: #6B5E53;
+  line-height: 1.7;
+}
+
+/* 底部 */
+.bottom-actions {
+  margin-bottom: 16rpx;
+}
+
+.disclaimer {
+  text-align: center;
+  font-size: 20rpx;
+  color: #9E8E7E;
+  padding: 8rpx 0 24rpx;
+}

mini/pages/settings/settings.js

@@ -1,14 +1,28 @@
 const versionInfo = require('../../utils/version.js');
+const { request } = require('../../utils/request.js');
+const birthProfile = require('../../utils/birth-profile.js');
 
 Page({
   data: {
     userInfo: null,
+    loggedIn: false,
+    logging: false,
     weekStartDay: 0,
     ziHourSect: 'lateZiNextDay',
     solarTime: true,
     showBuddhist: false,
     highlightLunar: true,
     bookmarks: [],
+    // 生辰档案
+    profiles: [],
+    activeProfileId: '',
+    maxFree: birthProfile.MAX_PROFILES,
+    canAdd: true,
+    showAddForm: false,
+    formName: '',
+    formGender: 'male',
+    formDate: '1990-01-01',
+    formTime: '12:00',
     version: versionInfo.version,
     buildNumber: versionInfo.buildNumber,
     buildTime: versionInfo.buildTime,
@@ -22,6 +36,7 @@ Page({
 
   onShow() {
     this.loadBookmarks();
+    this.loadProfiles();
   },
 
   loadSettings() {
@@ -45,6 +60,146 @@ Page({
     this.setData({ bookmarks });
   },
 
+  // ==================== 生辰档案 ====================
+
+  loadProfiles() {
+    const render = () => {
+      const profiles = birthProfile.getProfiles();
+      const active = birthProfile.getActiveProfile();
+      this.setData({
+        profiles,
+        activeProfileId: active ? active.id : '',
+        canAdd: profiles.length < this.data.maxFree
+      });
+    };
+    // 已登录时先从服务端同步，失败静默回退本地
+    if (birthProfile.isLoggedIn()) {
+      birthProfile.syncFromServer().then(render).catch(render);
+    } else {
+      render();
+    }
+  },
+
+  toggleAddForm() {
+    if (!this.data.showAddForm && !this.data.canAdd) {
+      wx.showToast({ title: `最多可免费绑定 ${this.data.maxFree} 个生辰`, icon: 'none' });
+      return;
+    }
+    this.setData({ showAddForm: !this.data.showAddForm });
+  },
+
+  onFormName(e) {
+    this.setData({ formName: e.detail.value });
+  },
+
+  setFormGender(e) {
+    this.setData({ formGender: e.currentTarget.dataset.g });
+  },
+
+  onFormDate(e) {
+    this.setData({ formDate: e.detail.value });
+  },
+
+  onFormTime(e) {
+    this.setData({ formTime: e.detail.value });
+  },
+
+  submitProfile() {
+    const { formName, formGender, formDate, formTime } = this.data;
+    if (!formDate || !formTime) {
+      wx.showToast({ title: '请选择出生日期和时间', icon: 'none' });
+      return;
+    }
+    const result = birthProfile.addProfile({
+      name: formName.trim() || '未命名',
+      gender: formGender,
+      birthday: formDate,
+      birthTime: formTime
+    });
+    if (!result.ok) {
+      wx.showToast({ title: result.msg, icon: 'none' });
+      return;
+    }
+    // 已登录时推送到服务端（静默失败，不影响本地）
+    birthProfile.pushProfileToServer(result.profile);
+    this.setData({ showAddForm: false, formName: '' });
+    wx.showToast({ title: '绑定成功', icon: 'success' });
+    this.loadProfiles();
+  },
+
+  removeProfile(e) {
+    const id = e.currentTarget.dataset.id;
+    const profile = this.data.profiles.find(p => p.id === id);
+    if (!profile) return;
+    wx.showModal({
+      title: '删除生辰',
+      content: `确定删除「${profile.name}」的生辰信息吗？`,
+      success: (res) => {
+        if (!res.confirm) return;
+        birthProfile.removeProfile(id);
+        birthProfile.removeProfileFromServer(profile);
+        wx.showToast({ title: '已删除', icon: 'success' });
+        this.loadProfiles();
+      }
+    });
+  },
+
+  // ==================== 登录 ====================
+
+  login() {
+    if (this.data.logging) return;
+    this.setData({ logging: true });
+    wx.login({
+      success: (loginRes) => {
+        if (!loginRes.code) {
+          this.setData({ logging: false });
+          wx.showToast({ title: '微信登录失败', icon: 'none' });
+          return;
+        }
+        request({
+          url: '/api/user/login',
+          method: 'POST',
+          data: { code: loginRes.code }
+        }).then((res) => {
+          if (res && res.code === 0 && res.data && res.data.token) {
+            wx.setStorageSync('token', res.data.token);
+            wx.setStorageSync('lunar-user-info', res.data.user);
+            this.setData({ userInfo: res.data.user, loggedIn: true, logging: false });
+            wx.showToast({ title: '登录成功', icon: 'success' });
+            // 登录后同步服务端生辰档案
+            this.loadProfiles();
+          } else {
+            this.setData({ logging: false });
+            wx.showToast({ title: (res && res.msg) || '登录失败', icon: 'none' });
+          }
+        }).catch(() => {
+          this.setData({ logging: false });
+          wx.showToast({ title: '登录失败，请稍后重试', icon: 'none' });
+        });
+      },
+      fail: () => {
+        this.setData({ logging: false });
+        wx.showToast({ title: '微信登录失败', icon: 'none' });
+      }
+    });
+  },
+
+  logout() {
+    wx.showModal({
+      title: '退出登录',
+      content: '退出后生辰档案仅保存在本机，重新登录可恢复云端档案',
+      success: (res) => {
+        if (!res.confirm) return;
+        wx.removeStorageSync('token');
+        wx.removeStorageSync('lunar-user-info');
+        this.setData({ userInfo: null, loggedIn: false });
+        wx.showToast({ title: '已退出', icon: 'success' });
+      }
+    });
+  },
+
+  // ==================== 偏好设置 ====================
+
   setWeekStart(e) {
     this.setData({ weekStartDay: Number(e.currentTarget.dataset.v) });
     this.saveSettings();
@@ -79,20 +234,13 @@ Page({
   },
 
   navTo(e) {
-    wx.navigateTo({ url: e.currentTarget.dataset.url });
-  },
-
-  login() {
-    wx.getUserProfile({
-      desc: '用于完善用户资料',
-      success: (res) => {
-        this.setData({ userInfo: res.userInfo });
-        wx.setStorageSync('lunar-user-info', res.userInfo);
-        wx.showToast({ title: '登录成功', icon: 'success' });
-      },
-      fail: () => {
-        wx.showToast({ title: '登录失败', icon: 'none' });
+    const url = e.currentTarget.dataset.url;
+    // tabBar 页面必须用 switchTab 打开
+    const tabPages = ['/pages/home/home', '/pages/wish-tree/wish-tree', '/pages/bazi/bazi', '/pages/wiki/wiki', '/pages/settings/settings', '/pages/fortune/fortune'];
+    if (tabPages.includes(url)) {
+      wx.switchTab({ url });
+    } else {
+      wx.navigateTo({ url });
     }
-    });
   }
 });

mini/pages/settings/settings.wxml

@@ -2,14 +2,85 @@
   <!-- 用户信息 -->
   <view class="card">
     <view class="section-title">用户信息</view>
-    <view class="flex items-center gap-2" wx:if="{{userInfo}}">
-      <image src="{{userInfo.avatarUrl}}" class="avatar" mode="aspectFill"/>
+    <view class="flex items-center gap-2 justify-between" wx:if="{{loggedIn}}">
+      <view class="flex items-center gap-2">
+        <image src="{{userInfo.avatar}}" class="avatar" mode="aspectFill" wx:if="{{userInfo.avatar}}"/>
+        <view class="avatar avatar-placeholder" wx:else>
+          <text>客</text>
+        </view>
         <view>
-        <text class="text-base font-medium">{{userInfo.nickName}}</text>
-        <text class="text-xs text-muted block">已登录</text>
+          <text class="text-base font-medium">{{userInfo.nickname || '微信用户'}}</text>
+          <text class="text-xs text-muted block">已登录，档案云端同步</text>
         </view>
       </view>
-    <view class="btn-primary" wx:else bindtap="login">微信登录</view>
+      <view class="btn-ghost text-muted" bindtap="logout">退出</view>
+    </view>
+    <block wx:else>
+      <view class="text-sm text-muted mb-2">登录后可将生辰档案同步到云端，换设备不丢失</view>
+      <view class="btn-primary text-center" bindtap="login">{{logging ? '登录中…' : '微信登录'}}</view>
+    </block>
+  </view>
+
+  <!-- 生辰管理 -->
+  <view class="card">
+    <view class="section-title flex justify-between items-center">
+      <text>生辰管理</text>
+      <text class="text-xs text-muted">{{profiles.length}}/{{maxFree}}</text>
+    </view>
+    <view class="text-xs text-muted mb-2">八字排盘基于生辰信息，每位用户可免费绑定 {{maxFree}} 个出生年月（如本人、家人）。</view>
+
+    <view class="profile-list" wx:if="{{profiles.length > 0}}">
+      <view class="profile-item" wx:for="{{profiles}}" wx:key="id">
+        <view class="flex justify-between items-center">
+          <view>
+            <view class="flex items-center gap-1">
+              <text class="text-base font-medium">{{item.name}}</text>
+              <text class="badge badge-lucky" wx:if="{{item.id === activeProfileId}}">使用中</text>
+            </view>
+            <text class="text-xs text-muted block">{{item.gender === 'female' ? '女' : '男'}} · {{item.birthday}} {{item.birthTime}}</text>
+          </view>
+          <view class="btn-ghost text-unlucky" bindtap="removeProfile" data-id="{{item.id}}">删除</view>
+        </view>
+      </view>
+    </view>
+    <view class="text-center text-muted p-2" wx:else>
+      <text>暂未绑定生辰，请到下方添加</text>
+    </view>
+
+    <view class="btn-outline text-center mt-2" bindtap="toggleAddForm" wx:if="{{canAdd}}">
+      {{showAddForm ? '收起' : '+ 添加生辰'}}
+    </view>
+    <view class="text-center text-xs text-muted mt-2" wx:else>
+      免费名额已用完，可删除旧档案后添加
+    </view>
+
+    <!-- 添加表单 -->
+    <block wx:if="{{showAddForm}}">
+      <view class="form-item mt-2">
+        <text class="form-label">备注名（如：本人、爸爸）</text>
+        <input class="form-input" placeholder="未命名" value="{{formName}}" bindinput="onFormName"/>
+      </view>
+      <view class="form-item">
+        <text class="form-label">性别</text>
+        <view class="flex gap-2">
+          <view class="btn-outline {{formGender === 'male' ? 'active' : ''}}" bindtap="setFormGender" data-g="male">男</view>
+          <view class="btn-outline {{formGender === 'female' ? 'active' : ''}}" bindtap="setFormGender" data-g="female">女</view>
+        </view>
+      </view>
+      <view class="form-item">
+        <text class="form-label">出生日期（公历）</text>
+        <picker mode="date" value="{{formDate}}" start="1900-01-01" end="2100-12-31" bindchange="onFormDate">
+          <view class="picker-input">{{formDate}}</view>
+        </picker>
+      </view>
+      <view class="form-item">
+        <text class="form-label">出生时间</text>
+        <picker mode="time" value="{{formTime}}" bindchange="onFormTime">
+          <view class="picker-input">{{formTime}}</view>
+        </picker>
+      </view>
+      <view class="btn-primary text-center" bindtap="submitProfile">保存生辰</view>
+    </block>
   </view>
 
   <!-- 偏好设置 -->

mini/pages/settings/settings.wxss

@@ -15,6 +15,51 @@
   border-radius: 50%;
 }
 
+.avatar-placeholder {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: #C41E3A;
+  color: #FFFFFF;
+  font-size: 36rpx;
+}
+
+/* 生辰档案 */
+.profile-item {
+  padding: 16rpx 0;
+  border-bottom: 1rpx solid #E8D5C4;
+}
+
+.profile-item:last-child {
+  border-bottom: none;
+}
+
+/* 添加生辰表单 */
+.form-item {
+  margin-bottom: 24rpx;
+}
+
+.form-label {
+  font-size: 24rpx;
+  color: #6B5E53;
+  margin-bottom: 8rpx;
+  display: block;
+}
+
+.form-input {
+  padding: 20rpx;
+  background: #FFFBF5;
+  border-radius: 12rpx;
+  border: 1rpx solid #E8D5C4;
+}
+
+.picker-input {
+  padding: 20rpx;
+  background: #FFFBF5;
+  border-radius: 12rpx;
+  border: 1rpx solid #E8D5C4;
+}
+
 .setting-item {
   display: flex;
   justify-content: space-between;

mini/utils/birth-profile.js

@@ -0,0 +1,147 @@
+// 生辰档案管理工具
+// 本地存储优先；已登录（存在 token）时与服务端双向同步
+const { request } = require('./request.js');
+
+const STORAGE_KEY = 'lunar-birth-profiles';
+// 每个用户可免费绑定的生辰数量上限
+const MAX_PROFILES = 3;
+
+/** 读取本地生辰档案列表 */
+function getProfiles() {
+  return wx.getStorageSync(STORAGE_KEY) || [];
+}
+
+/** 保存本地生辰档案列表 */
+function saveProfiles(profiles) {
+  wx.setStorageSync(STORAGE_KEY, profiles);
+}
+
+/** 获取当前激活的档案（第一个为默认） */
+function getActiveProfile() {
+  const profiles = getProfiles();
+  if (profiles.length === 0) return null;
+  const activeId = wx.getStorageSync('lunar-birth-active-id');
+  return profiles.find(p => p.id === activeId) || profiles[0];
+}
+
+/** 设置激活档案 */
+function setActiveProfile(id) {
+  wx.setStorageSync('lunar-birth-active-id', id);
+}
+
+/** 新增生辰档案（本地），超出上限或重复时返回错误信息 */
+function addProfile(profile) {
+  const profiles = getProfiles();
+  if (profiles.length >= MAX_PROFILES) {
+    return { ok: false, msg: `最多可免费绑定 ${MAX_PROFILES} 个生辰` };
+  }
+  const dup = profiles.find(p => p.birthday === profile.birthday && p.birthTime === profile.birthTime);
+  if (dup) {
+    return { ok: false, msg: '该生辰已绑定，请勿重复添加' };
+  }
+  const item = {
+    id: `local-${Date.now()}`,
+    name: profile.name || '未命名',
+    gender: profile.gender || 'male',
+    birthday: profile.birthday,
+    birthTime: profile.birthTime,
+    serverId: 0,
+    createdAt: Date.now()
+  };
+  profiles.push(item);
+  saveProfiles(profiles);
+  if (!getActiveProfile()) setActiveProfile(item.id);
+  return { ok: true, profile: item };
+}
+
+/** 删除生辰档案（本地） */
+function removeProfile(id) {
+  const profiles = getProfiles().filter(p => p.id !== id);
+  saveProfiles(profiles);
+  if (wx.getStorageSync('lunar-birth-active-id') === id) {
+    setActiveProfile(profiles.length > 0 ? profiles[0].id : '');
+  }
+}
+
+/** 是否已登录（存在有效 token） */
+function isLoggedIn() {
+  return !!wx.getStorageSync('token');
+}
+
+/** 推送单个档案到服务端（静默失败，不影响本地） */
+function pushProfileToServer(profile) {
+  if (!isLoggedIn()) return Promise.resolve(null);
+  return request({
+    url: '/api/user/birth-profiles',
+    method: 'POST',
+    data: {
+      name: profile.name,
+      gender: profile.gender === 'female' ? 2 : 1,
+      birthday: profile.birthday,
+      birthTime: profile.birthTime
+    }
+  }).then(res => {
+    if (res && res.code === 0 && res.data && res.data.profile) {
+      // 回填 serverId
+      const profiles = getProfiles();
+      const target = profiles.find(p => p.id === profile.id);
+      if (target) {
+        target.serverId = res.data.profile.id;
+        saveProfiles(profiles);
+      }
+      return res.data.profile;
+    }
+    return null;
+  }).catch(() => null);
+}
+
+/** 删除服务端档案（静默失败） */
+function removeProfileFromServer(profile) {
+  if (!isLoggedIn() || !profile.serverId) return Promise.resolve();
+  return request({
+    url: `/api/user/birth-profiles/${profile.serverId}`,
+    method: 'DELETE'
+  }).catch(() => null);
+}
+
+/** 从服务端拉取档案并与本地合并（以服务端为准） */
+function syncFromServer() {
+  if (!isLoggedIn()) return Promise.resolve(getProfiles());
+  return request({ url: '/api/user/birth-profiles' })
+    .then(res => {
+      if (!res || res.code !== 0 || !Array.isArray(res.data && res.data.profiles)) {
+        return getProfiles();
+      }
+      const serverList = res.data.profiles.map(sp => ({
+        id: `server-${sp.id}`,
+        serverId: sp.id,
+        name: sp.name || '未命名',
+        gender: sp.gender === 2 ? 'female' : 'male',
+        birthday: sp.birthday,
+        birthTime: sp.birthTime,
+        createdAt: sp.createdAt ? new Date(sp.createdAt).getTime() : 0
+      }));
+      // 本地尚未成功推送的档案保留，按 (birthday+birthTime) 去重
+      const merged = [...serverList];
+      getProfiles().forEach(lp => {
+        const exists = merged.some(m => m.birthday === lp.birthday && m.birthTime === lp.birthTime);
+        if (!exists) merged.push(lp);
+      });
+      saveProfiles(merged.slice(0, MAX_PROFILES));
+      return getProfiles();
+    })
+    .catch(() => getProfiles());
+}
+
+module.exports = {
+  MAX_PROFILES,
+  getProfiles,
+  getActiveProfile,
+  setActiveProfile,
+  addProfile,
+  removeProfile,
+  isLoggedIn,
+  pushProfileToServer,
+  removeProfileFromServer,
+  syncFromServer
+};

server/cmd/main.go

@@ -84,6 +84,10 @@ func main() {
 			user.GET("/profile", middleware.Auth(), handler.GetUserProfile)
 			user.PUT("/profile", middleware.Auth(), handler.UpdateUserProfile)
 			user.POST("/auth", handler.WechatAuth)
+			// 生辰档案（八字绑定，每用户免费 3 个）
+			user.GET("/birth-profiles", middleware.Auth(), handler.GetBirthProfiles)
+			user.POST("/birth-profiles", middleware.Auth(), handler.CreateBirthProfile)
+			user.DELETE("/birth-profiles/:id", middleware.Auth(), handler.DeleteBirthProfile)
 		}
 
 		// 支付相关

server/internal/config/database.go

@@ -41,6 +41,7 @@ func autoMigrate() error {
 	if err := DB.AutoMigrate(
 		&model.User{},
 		&model.UserProfile{},
+		&model.BirthProfile{},
 		&model.Order{},
 		&model.OrderItem{},
 		&model.WishTree{},

server/internal/handler/user.go

@@ -6,6 +6,7 @@ import (
 	"io"
 	"net/http"
 	"net/url"
+	"strconv"
 	"time"
 
 	"github.com/gin-gonic/gin"
@@ -283,6 +284,111 @@ func UpdateUserProfile(c *gin.Context) {
 	})
 }
 
+// GetBirthProfiles 获取当前用户的生辰档案列表
+func GetBirthProfiles(c *gin.Context) {
+	userID, exists := c.Get("userID")
+	if !exists {
+		c.JSON(http.StatusUnauthorized, gin.H{"code": 401, "msg": "未授权"})
+		return
+	}
+
+	userService := service.NewUserService()
+	profiles, err := userService.ListBirthProfiles(userID.(uint))
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "msg": "获取生辰档案失败"})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{
+		"code": 0,
+		"msg":  "success",
+		"data": gin.H{
+			"profiles":   profiles,
+			"maxFree":    model.MaxFreeBirthProfiles,
+		},
+	})
+}
+
+// CreateBirthProfile 新增生辰档案（每用户免费上限 MaxFreeBirthProfiles 个）
+func CreateBirthProfile(c *gin.Context) {
+	userID, exists := c.Get("userID")
+	if !exists {
+		c.JSON(http.StatusUnauthorized, gin.H{"code": 401, "msg": "未授权"})
+		return
+	}
+
+	var req struct {
+		Name      string `json:"name"`
+		Gender    int    `json:"gender"`
+		Birthday  string `json:"birthday" binding:"required"`
+		BirthTime string `json:"birthTime" binding:"required"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"code": 400, "msg": "参数错误"})
+		return
+	}
+
+	// 简单格式校验
+	if _, err := time.Parse("2006-01-02", req.Birthday); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"code": 400, "msg": "出生日期格式错误"})
+		return
+	}
+	if _, err := time.Parse("15:04", req.BirthTime); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"code": 400, "msg": "出生时间格式错误"})
+		return
+	}
+	if req.Gender != 1 && req.Gender != 2 {
+		req.Gender = 1
+	}
+
+	profile := &model.BirthProfile{
+		UserID:    userID.(uint),
+		Name:      req.Name,
+		Gender:    req.Gender,
+		Birthday:  req.Birthday,
+		BirthTime: req.BirthTime,
+	}
+
+	userService := service.NewUserService()
+	if err := userService.CreateBirthProfile(profile); err != nil {
+		if err == service.ErrBirthProfileLimit {
+			c.JSON(http.StatusForbidden, gin.H{"code": 403, "msg": err.Error()})
+			return
+		}
+		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "msg": "新增生辰档案失败"})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{
+		"code": 0,
+		"msg":  "success",
+		"data": gin.H{"profile": profile},
+	})
+}
+
+// DeleteBirthProfile 删除生辰档案（仅限本人）
+func DeleteBirthProfile(c *gin.Context) {
+	userID, exists := c.Get("userID")
+	if !exists {
+		c.JSON(http.StatusUnauthorized, gin.H{"code": 401, "msg": "未授权"})
+		return
+	}
+
+	id, err := strconv.ParseUint(c.Param("id"), 10, 64)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"code": 400, "msg": "参数错误"})
+		return
+	}
+
+	userService := service.NewUserService()
+	if err := userService.DeleteBirthProfile(uint(id), userID.(uint)); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "msg": "删除生辰档案失败"})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{"code": 0, "msg": "success"})
+}
+
 // WechatAuth 微信授权（仅返回 openid，session_key 属敏感凭证不下发）
 func WechatAuth(c *gin.Context) {
 	var req struct {

server/internal/model/user.go

@@ -32,3 +32,18 @@ type UserProfile struct {
 	CreatedAt time.Time `json:"createdAt"`
 	UpdatedAt time.Time `json:"updatedAt"`
 }
+
+// MaxFreeBirthProfiles 每个用户可免费绑定的生辰数量上限
+const MaxFreeBirthProfiles = 3
+
+// BirthProfile 用户生辰档案（八字绑定），每个用户最多免费绑定 MaxFreeBirthProfiles 个
+type BirthProfile struct {
+	ID        uint      `gorm:"primaryKey" json:"id"`
+	UserID    uint      `gorm:"index" json:"userId"`
+	Name      string    `gorm:"size:32" json:"name"`     // 备注名（如本人、家人等）
+	Gender    int       `gorm:"default:1" json:"gender"` // 1:男 2:女
+	Birthday  string    `gorm:"size:10" json:"birthday"` // YYYY-MM-DD
+	BirthTime string    `gorm:"size:8" json:"birthTime"` // HH:mm
+	CreatedAt time.Time `json:"createdAt"`
+	UpdatedAt time.Time `json:"updatedAt"`
+}

server/internal/service/user.go

@@ -2,6 +2,7 @@ package service
 
 import (
 	"errors"
+	"fmt"
 	"time"
 
 	"github.com/golang-jwt/jwt/v5"
@@ -70,6 +71,35 @@ func (s *UserService) GetUserProfile(userID uint) (*model.UserProfile, error) {
 	return &profile, nil
 }
 
+// ErrBirthProfileLimit 生辰档案数量达到免费上限
+var ErrBirthProfileLimit = fmt.Errorf("最多可免费绑定 %d 个生辰", model.MaxFreeBirthProfiles)
+
+// ListBirthProfiles 获取用户的全部生辰档案
+func (s *UserService) ListBirthProfiles(userID uint) ([]model.BirthProfile, error) {
+	var profiles []model.BirthProfile
+	if err := s.db.Where("user_id = ?", userID).Order("id ASC").Find(&profiles).Error; err != nil {
+		return nil, err
+	}
+	return profiles, nil
+}
+
+// CreateBirthProfile 新增生辰档案，超过免费上限时返回 ErrBirthProfileLimit
+func (s *UserService) CreateBirthProfile(profile *model.BirthProfile) error {
+	var count int64
+	if err := s.db.Model(&model.BirthProfile{}).Where("user_id = ?", profile.UserID).Count(&count).Error; err != nil {
+		return err
+	}
+	if count >= model.MaxFreeBirthProfiles {
+		return ErrBirthProfileLimit
+	}
+	return s.db.Create(profile).Error
+}
+
+// DeleteBirthProfile 删除生辰档案（仅限本人）
+func (s *UserService) DeleteBirthProfile(id, userID uint) error {
+	return s.db.Where("id = ? AND user_id = ?", id, userID).Delete(&model.BirthProfile{}).Error
+}
+
 // GenerateToken 生成JWT Token
 func (s *UserService) GenerateToken(userID uint, secret string) (string, error) {
 	claims := jwt.MapClaims{