commit d9d3833d92ed92603153554a2382e30abda8aef7
Author: ypc <15051963820@163.com>
Date:   Sat Jun 6 11:46:55 2026 +0800

    <新增> 1、提交微信小程序初始开发版本

diff --git a/app.js b/app.js
new file mode 100644
index 0000000..672be92
--- /dev/null
+++ b/app.js
@@ -0,0 +1,59 @@
+App({
+  globalData: {
+    items: ["血红蛋白", "尿素", "肌酐", "尿酸", "血钾", "血钙", "血磷", "β2微球蛋白", "体重"],
+    records: []
+  },
+
+  onLaunch() {
+    const defaults = ["血红蛋白", "尿素", "肌酐", "尿酸", "血钾", "血钙", "血磷", "β2微球蛋白", "体重"]
+    const data = wx.getStorageSync("health_data")
+    if (data) {
+      // 合并：保留用户自定义项目，同时补上新增的默认项目
+      const storedItems = data.items || []
+      const merged = [...defaults]
+      storedItems.forEach(item => {
+        if (!merged.includes(item)) merged.push(item)
+      })
+      this.globalData.items = merged
+      this.globalData.records = data.records || []
+    } else {
+      this.globalData.items = [...defaults]
+    }
+    this.saveData()
+  },
+
+  saveData() {
+    wx.setStorageSync("health_data", {
+      items: this.globalData.items,
+      records: this.globalData.records
+    })
+  },
+
+  addRecord(record) {
+    this.globalData.records.push({
+      id: Date.now().toString(36) + Math.random().toString(36).slice(2, 6),
+      item: record.item,
+      date: record.date,
+      value: parseFloat(record.value)
+    })
+    this.saveData()
+  },
+
+  deleteRecord(id) {
+    this.globalData.records = this.globalData.records.filter(r => r.id !== id)
+    this.saveData()
+  },
+
+  addItem(name) {
+    if (!this.globalData.items.includes(name)) {
+      this.globalData.items.push(name)
+      this.saveData()
+    }
+  },
+
+  removeItem(name) {
+    this.globalData.items = this.globalData.items.filter(i => i !== name)
+    this.globalData.records = this.globalData.records.filter(r => r.item !== name)
+    this.saveData()
+  }
+})
diff --git a/app.json b/app.json
new file mode 100644
index 0000000..d1093f5
--- /dev/null
+++ b/app.json
@@ -0,0 +1,18 @@
+{
+  "pages": [
+    "pages/index/index",
+    "pages/home/home",
+    "pages/entry/entry",
+    "pages/items/items",
+    "pages/trend/trend",
+    "pages/details/details"
+  ],
+  "window": {
+    "navigationBarBackgroundColor": "#2c7a7b",
+    "navigationBarTitleText": "健康数据追踪",
+    "navigationBarTextStyle": "white",
+    "backgroundColor": "#f5f7fa"
+  },
+  "sitemapLocation": "sitemap.json",
+  "lazyCodeLoading": "requiredComponents"
+}
diff --git a/app.wxss b/app.wxss
new file mode 100644
index 0000000..a0c0d6c
--- /dev/null
+++ b/app.wxss
@@ -0,0 +1,165 @@
+page {
+  --primary: #2c7a7b;
+  --primary-light: #e6f2f2;
+  --primary-dark: #1a5c5d;
+  --danger: #e53e3e;
+  --danger-light: #fff5f5;
+  --text: #2d3748;
+  --text-secondary: #718096;
+  --text-muted: #a0aec0;
+  --border: #e2e8f0;
+  --bg: #f5f7fa;
+  --card-bg: #ffffff;
+  --shadow: 0 1px 3px rgba(0,0,0,0.06);
+  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
+
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
+  font-size: 28rpx;
+  color: var(--text);
+  background: var(--bg);
+  box-sizing: border-box;
+}
+
+.container {
+  padding: 24rpx;
+  min-height: 100vh;
+}
+
+/* ===== 通用卡片 ===== */
+.card {
+  background: #fff;
+  border-radius: 12rpx;
+  padding: 28rpx;
+  margin-bottom: 20rpx;
+  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
+}
+
+.card-title {
+  font-size: 30rpx;
+  font-weight: 600;
+  color: #2d3748;
+  margin-bottom: 20rpx;
+  padding-bottom: 16rpx;
+  border-bottom: 1rpx solid #edf2f7;
+}
+
+/* ===== 按钮 ===== */
+.btn-primary {
+  background: #2c7a7b;
+  color: #fff;
+  font-size: 28rpx;
+  font-weight: 500;
+  padding: 16rpx 32rpx;
+  border-radius: 8rpx;
+  text-align: center;
+  border: none;
+  line-height: 1.5;
+}
+
+.btn-primary:active {
+  background: #1a5c5d;
+}
+
+.btn-danger {
+  background: #fff;
+  color: #e53e3e;
+  border: 1rpx solid #e53e3e;
+  font-size: 24rpx;
+  padding: 8rpx 20rpx;
+  border-radius: 6rpx;
+  text-align: center;
+  line-height: 1.5;
+}
+
+.btn-cancel {
+  flex: 1;
+  background: #edf2f7;
+  color: #718096;
+  font-size: 28rpx;
+  padding: 16rpx 0;
+  border-radius: 8rpx;
+  text-align: center;
+  border: none;
+  line-height: 1.5;
+}
+
+.btn-save {
+  flex: 1;
+  background: #2c7a7b;
+  color: #fff;
+  font-size: 28rpx;
+  padding: 16rpx 0;
+  border-radius: 8rpx;
+  text-align: center;
+  border: none;
+  line-height: 1.5;
+}
+
+/* ===== 空状态 ===== */
+.empty-hint {
+  color: #a0aec0;
+  font-size: 26rpx;
+  text-align: center;
+  padding: 40rpx 0;
+}
+
+/* ===== 弹窗 ===== */
+.modal-wrap {
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background: rgba(0,0,0,0.5);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 100;
+}
+
+.modal-box {
+  width: 85%;
+  max-height: 80vh;
+  background: #fff;
+  padding: 36rpx;
+  border-radius: 16rpx;
+  overflow-y: auto;
+}
+
+.modal-title {
+  font-size: 34rpx;
+  font-weight: 600;
+  color: #2d3748;
+  text-align: center;
+  margin-bottom: 24rpx;
+}
+
+.btn-row {
+  display: flex;
+  gap: 20rpx;
+  margin-top: 24rpx;
+}
+
+/* ===== 模式切换 ===== */
+.mode-tabs {
+  display: flex;
+  gap: 0;
+  margin-bottom: 20rpx;
+  border-radius: 8rpx;
+  overflow: hidden;
+  border: 1rpx solid #2c7a7b;
+}
+
+.mode-tab {
+  flex: 1;
+  text-align: center;
+  padding: 14rpx 0;
+  font-size: 26rpx;
+  color: #2c7a7b;
+  background: #fff;
+}
+
+.mode-tab--active {
+  color: #fff;
+  background: #2c7a7b;
+}
diff --git a/minitest/test.config.json b/minitest/test.config.json
new file mode 100644
index 0000000..41cf3d0
--- /dev/null
+++ b/minitest/test.config.json
@@ -0,0 +1,3 @@
+{
+  "treeData": []
+}
\ No newline at end of file
diff --git a/pages/details/details.js b/pages/details/details.js
new file mode 100644
index 0000000..a48a923
--- /dev/null
+++ b/pages/details/details.js
@@ -0,0 +1,226 @@
+var app = getApp()
+
+Page({
+  data: {
+    items: [],
+    viewMode: "month",
+    filterMonth: "",
+    filterYear: "",
+    customStart: "",
+    customEnd: "",
+    tableData: [],
+    showEditModal: false,
+    editingDate: "",
+    editValues: {}
+  },
+
+  onLoad: function () {
+    var today = this.formatDate(new Date(), "day")
+    var month = today.slice(0, 7)
+    var year = today.slice(0, 4)
+    this.setData({
+      items: app.globalData.items,
+      filterMonth: month,
+      filterYear: year,
+      customStart: month,
+      customEnd: month
+    })
+    this.refreshData()
+  },
+
+  onShow: function () {
+    var items = app.globalData.items
+    if (items.length !== this.data.items.length ||
+        items.some(function (v, i) { return v !== this.data.items[i] }, this)) {
+      this.setData({ items: items })
+    }
+    this.refreshData()
+  },
+
+  getDateRange: function () {
+    var viewMode = this.data.viewMode
+    var filterMonth = this.data.filterMonth
+    var filterYear = this.data.filterYear
+    var customStart = this.data.customStart
+    var customEnd = this.data.customEnd
+    var start, end, parts, y, m, sy, sm, ey, em
+
+    if (viewMode === "month") {
+      parts = filterMonth.split("-")
+      y = Number(parts[0])
+      m = Number(parts[1])
+      start = new Date(y, m - 1, 1)
+      end = new Date(y, m, 0)
+    } else if (viewMode === "year") {
+      y = parseInt(filterYear)
+      start = new Date(y, 0, 1)
+      end = new Date(y, 11, 31)
+    } else {
+      parts = customStart.split("-")
+      sy = Number(parts[0])
+      sm = Number(parts[1])
+      parts = customEnd.split("-")
+      ey = Number(parts[0])
+      em = Number(parts[1])
+      start = new Date(sy, sm - 1, 1)
+      end = new Date(ey, em, 0)
+    }
+    return { start: start, end: end }
+  },
+
+  refreshData: function () {
+    var records = app.globalData.records
+    var items = this.data.items
+    var range = this.getDateRange()
+    var start = range.start
+    var end = range.end
+
+    var inRange = function (r) {
+      var d = new Date(r.date + "T00:00:00")
+      return d >= start && d <= end
+    }
+
+    var filtered = records.filter(inRange)
+    this._filteredRecords = filtered
+
+    var dateMap = {}
+    filtered.forEach(function (r) {
+      if (!dateMap[r.date]) dateMap[r.date] = {}
+      if (!dateMap[r.date][r.item]) {
+        dateMap[r.date][r.item] = { sum: 0, count: 0 }
+      }
+      dateMap[r.date][r.item].sum += r.value
+      dateMap[r.date][r.item].count += 1
+    })
+
+    var dates = Object.keys(dateMap).sort()
+    var tableData = dates.map(function (d) {
+      var values = items.map(function (item) {
+        var entry = dateMap[d][item]
+        if (!entry) return undefined
+        return Math.round((entry.sum / entry.count) * 100) / 100
+      })
+      return { rowKey: d, values: values }
+    })
+
+    this.setData({ tableData: tableData })
+  },
+
+  onSwitchMode: function (e) {
+    var that = this
+    this.setData({ viewMode: e.currentTarget.dataset.mode }, function () { that.refreshData() })
+  },
+
+  onMonthChange: function (e) {
+    var that = this
+    this.setData({ filterMonth: e.detail.value }, function () { that.refreshData() })
+  },
+
+  onYearChange: function (e) {
+    var that = this
+    this.setData({ filterYear: e.detail.value }, function () { that.refreshData() })
+  },
+
+  onCustomStartChange: function (e) {
+    var that = this
+    this.setData({ customStart: e.detail.value }, function () { that.refreshData() })
+  },
+
+  onCustomEndChange: function (e) {
+    var that = this
+    this.setData({ customEnd: e.detail.value }, function () { that.refreshData() })
+  },
+
+  onDeleteRow: function (e) {
+    var dateKey = e.currentTarget.dataset.date
+    var that = this
+    wx.showModal({
+      title: "确认删除",
+      content: "删除「" + dateKey + "」的所有记录？",
+      confirmColor: "#e53e3e",
+      success: function (res) {
+        if (!res.confirm) return
+        app.globalData.records = app.globalData.records.filter(function (r) { return r.date !== dateKey })
+        app.saveData()
+        that.refreshData()
+        wx.showToast({ title: "已删除", icon: "success", duration: 1000 })
+      }
+    })
+  },
+
+  onEditRow: function (e) {
+    var dateKey = e.currentTarget.dataset.date
+    var items = this.data.items
+
+    var editValues = {}
+    var records = this._filteredRecords || []
+    items.forEach(function (item) {
+      var related = records.filter(function (r) { return r.item === item && r.date === dateKey })
+      if (related.length > 0) {
+        var sum = related.reduce(function (s, r) { return s + r.value }, 0)
+        var avg = sum / related.length
+        editValues[item] = String(Math.round(avg * 100) / 100)
+      } else {
+        editValues[item] = ""
+      }
+    })
+
+    this.setData({
+      showEditModal: true,
+      editingDate: dateKey,
+      editValues: editValues
+    })
+  },
+
+  onEditValueInput: function (e) {
+    var item = e.currentTarget.dataset.item
+    var update = {}
+    update["editValues." + item] = e.detail.value
+    this.setData(update)
+  },
+
+  saveEdit: function () {
+    var editingDate = this.data.editingDate
+    var editValues = this.data.editValues
+    var items = this.data.items
+    var savedCount = 0
+    var that = this
+
+    app.globalData.records = app.globalData.records.filter(function (r) { return r.date !== editingDate })
+
+    items.forEach(function (item) {
+      var raw = editValues[item]
+      if (!raw || raw.trim() === "") return
+      var v = parseFloat(raw)
+      if (isNaN(v) || v <= 0) return
+      app.globalData.records.push({
+        id: Date.now().toString(36) + Math.random().toString(36).slice(2, 6),
+        item: item,
+        date: editingDate,
+        value: v
+      })
+      savedCount++
+    })
+
+    app.saveData()
+    this.setData({ showEditModal: false, editingDate: "", editValues: {} }, function () {
+      that.refreshData()
+      wx.showToast({ title: "已保存 " + savedCount + " 项", icon: "success", duration: 1500 })
+    })
+  },
+
+  cancelEdit: function () {
+    this.setData({ showEditModal: false, editingDate: "", editValues: {} })
+  },
+
+  formatDate: function (d, mode) {
+    var y = d.getFullYear()
+    var m = String(d.getMonth() + 1)
+    if (m.length === 1) m = "0" + m
+    var day = String(d.getDate())
+    if (day.length === 1) day = "0" + day
+    if (mode === "year") return String(y)
+    if (mode === "month") return y + "-" + m
+    return y + "-" + m + "-" + day
+  }
+})
diff --git a/pages/details/details.json b/pages/details/details.json
new file mode 100644
index 0000000..a3a3550
--- /dev/null
+++ b/pages/details/details.json
@@ -0,0 +1,4 @@
+{
+  "navigationBarTitleText": "数据详细信息",
+  "usingComponents": {}
+}
diff --git a/pages/details/details.wxml b/pages/details/details.wxml
new file mode 100644
index 0000000..65548b7
--- /dev/null
+++ b/pages/details/details.wxml
@@ -0,0 +1,114 @@
+<!-- 数据详细信息 -->
+<view class="container">
+  <!-- 时间范围选择 -->
+  <view class="card card-filter">
+    <view class="mode-tabs">
+      <view class="mode-tab {{viewMode === 'month' ? 'mode-tab--active' : ''}}" bindtap="onSwitchMode" data-mode="month">按月</view>
+      <view class="mode-tab {{viewMode === 'year' ? 'mode-tab--active' : ''}}" bindtap="onSwitchMode" data-mode="year">按年</view>
+      <view class="mode-tab {{viewMode === 'custom' ? 'mode-tab--active' : ''}}" bindtap="onSwitchMode" data-mode="custom">自定义</view>
+    </view>
+
+    <view wx:if="{{viewMode === 'month'}}" class="filter-row">
+      <picker mode="date" fields="month" value="{{filterMonth}}" bindchange="onMonthChange">
+        <view class="picker-display">
+          <text>{{filterMonth}}</text>
+          <text class="picker-arrow">&#x25BC;</text>
+        </view>
+      </picker>
+    </view>
+
+    <view wx:if="{{viewMode === 'year'}}" class="filter-row">
+      <picker mode="date" fields="year" value="{{filterYear}}" bindchange="onYearChange">
+        <view class="picker-display">
+          <text>{{filterYear}}</text>
+          <text class="picker-arrow">&#x25BC;</text>
+        </view>
+      </picker>
+    </view>
+
+    <view wx:if="{{viewMode === 'custom'}}" class="filter-row custom-range">
+      <picker mode="date" fields="month" value="{{customStart}}" bindchange="onCustomStartChange">
+        <view class="picker-display picker-display--sm">
+          <text class="picker-label-sm">从</text>
+          <text>{{customStart}}</text>
+        </view>
+      </picker>
+      <text class="range-sep">至</text>
+      <picker mode="date" fields="month" value="{{customEnd}}" bindchange="onCustomEndChange">
+        <view class="picker-display picker-display--sm">
+          <text>{{customEnd}}</text>
+        </view>
+      </picker>
+    </view>
+  </view>
+
+  <!-- 数据表格 -->
+  <view class="card card-table" wx:if="{{tableData.length > 0}}">
+    <view class="card-title">数据明细（共{{tableData.length}}条）</view>
+    <scroll-view scroll-x="{{true}}" enable-flex class="table-scroll">
+      <view class="table" style="min-width: {{items.length * 130 + 260}}rpx;">
+        <!-- 表头 -->
+        <view class="table-row table-row--head">
+          <view class="table-cell table-cell--date">日期</view>
+          <block wx:for="{{items}}" wx:key="*this">
+            <view class="table-cell">{{item}}</view>
+          </block>
+          <view class="table-cell table-cell--action">删除</view>
+          <view class="table-cell table-cell--action">修改</view>
+        </view>
+        <!-- 数据行 -->
+        <view class="table-row" wx:for="{{tableData}}" wx:key="rowKey">
+          <view class="table-cell table-cell--date">{{item.rowKey}}</view>
+          <block wx:for="{{items}}" wx:key="*this" wx:for-item="fi" wx:for-index="fidx">
+            <view class="table-cell table-cell--value">
+              <text wx:if="{{item.values[fidx] !== undefined}}">{{item.values[fidx]}}</text>
+              <text wx:else class="table-empty">-</text>
+            </view>
+          </block>
+          <view class="table-cell table-cell--action">
+            <text class="btn-del-text" bindtap="onDeleteRow" data-date="{{item.rowKey}}">删除</text>
+          </view>
+          <view class="table-cell table-cell--action">
+            <text class="btn-edit-text" bindtap="onEditRow" data-date="{{item.rowKey}}">修改</text>
+          </view>
+        </view>
+      </view>
+    </scroll-view>
+  </view>
+
+  <view class="card" wx:else>
+    <view class="empty-hint">该时间范围内暂无数据</view>
+  </view>
+</view>
+
+<!-- ==== 修改弹窗 ==== -->
+<view wx:if="{{showEditModal}}" class="modal-wrap" catchtap="cancelEdit">
+  <view class="modal-box" catchtap="">
+    <view class="modal-title">修改记录</view>
+    <view class="modal-date">日期：{{editingDate}}</view>
+
+    <!-- 各项目数据 -->
+    <scroll-view scroll-y="{{true}}" class="modal-scroll">
+      <view class="modal-row" wx:for="{{items}}" wx:key="*this">
+        <view class="modal-row-label">
+          <text>{{item}}</text>
+        </view>
+        <view class="modal-row-input">
+          <input
+            class="modal-input"
+            type="digit"
+            placeholder="无数据"
+            value="{{editValues[item] || ''}}"
+            data-item="{{item}}"
+            bindinput="onEditValueInput"
+          />
+        </view>
+      </view>
+    </scroll-view>
+
+    <view class="btn-row">
+      <button class="btn-cancel" bindtap="cancelEdit">取消</button>
+      <button class="btn-save" bindtap="saveEdit">保存</button>
+    </view>
+  </view>
+</view>
diff --git a/pages/details/details.wxss b/pages/details/details.wxss
new file mode 100644
index 0000000..cd30c36
--- /dev/null
+++ b/pages/details/details.wxss
@@ -0,0 +1,163 @@
+/* ===== 数据详细信息 ===== */
+
+/* 筛选 */
+.filter-row {
+  margin-top: 4rpx;
+}
+
+.custom-range {
+  display: flex;
+  align-items: center;
+  gap: 16rpx;
+}
+
+.range-sep {
+  font-size: 26rpx;
+  color: #718096;
+  flex-shrink: 0;
+}
+
+.picker-display {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 16rpx 24rpx;
+  border: 1rpx solid #e2e8f0;
+  border-radius: 8rpx;
+  background: #f7fafc;
+  font-size: 28rpx;
+  color: #2d3748;
+}
+
+.picker-display--sm {
+  flex: 1;
+  padding: 12rpx 16rpx;
+  font-size: 26rpx;
+}
+
+.picker-arrow {
+  font-size: 20rpx;
+  color: #a0aec0;
+  margin-left: 10rpx;
+}
+
+.picker-label-sm {
+  color: #a0aec0;
+  margin-right: 8rpx;
+}
+
+/* 表格 */
+.table-scroll {
+  width: 100%;
+  overflow-x: auto;
+}
+
+.table {
+  display: flex;
+  flex-direction: column;
+}
+
+.table-row {
+  display: flex;
+  flex-wrap: nowrap;
+  border-bottom: 1rpx solid #edf2f7;
+}
+
+.table-row--head {
+  background: #f7fafc;
+  font-weight: 600;
+  color: #4a5568;
+}
+
+.table-cell {
+  flex-shrink: 0;
+  min-width: 120rpx;
+  padding: 16rpx 10rpx;
+  font-size: 24rpx;
+  text-align: center;
+  box-sizing: border-box;
+}
+
+.table-cell--date {
+  min-width: 150rpx;
+  color: #4a5568;
+  font-weight: 500;
+}
+
+.table-cell--value {
+  color: #2c7a7b;
+}
+
+.table-cell--action {
+  min-width: 70rpx;
+}
+
+.table-empty {
+  color: #cbd5e0;
+}
+
+.btn-del-text {
+  color: #e53e3e;
+  font-size: 22rpx;
+  padding: 4rpx 8rpx;
+}
+
+.btn-edit-text {
+  color: #3182ce;
+  font-size: 22rpx;
+  padding: 4rpx 8rpx;
+}
+
+/* ===== 修改弹窗 ===== */
+.modal-date {
+  font-size: 26rpx;
+  color: #718096;
+  text-align: center;
+  margin-bottom: 20rpx;
+  padding-bottom: 16rpx;
+  border-bottom: 1rpx solid #edf2f7;
+}
+
+.modal-scroll {
+  max-height: 480rpx;
+}
+
+.modal-row {
+  display: flex;
+  align-items: center;
+  padding: 14rpx 0;
+  border-bottom: 1rpx solid #f7fafc;
+}
+
+.modal-row:last-of-type {
+  border-bottom: none;
+}
+
+.modal-row-label {
+  width: 160rpx;
+  flex-shrink: 0;
+  font-size: 26rpx;
+  color: #2d3748;
+  font-weight: 500;
+}
+
+.modal-row-input {
+  flex: 1;
+}
+
+.modal-input {
+  width: 100%;
+  padding: 12rpx 16rpx;
+  border: 1rpx solid #e2e8f0;
+  border-radius: 8rpx;
+  background: #f7fafc;
+  font-size: 26rpx;
+  text-align: center;
+  box-sizing: border-box;
+  height: 56rpx;
+}
+
+.modal-input:focus {
+  border-color: #2c7a7b;
+  background: #e6f2f2;
+}
diff --git a/pages/entry/entry.js b/pages/entry/entry.js
new file mode 100644
index 0000000..8556549
--- /dev/null
+++ b/pages/entry/entry.js
@@ -0,0 +1,90 @@
+var app = getApp()
+
+Page({
+  data: {
+    items: [],
+    inputDate: "",
+    values: {},
+    existingRecords: []
+  },
+
+  onLoad: function () {
+    var today = this.formatDate(new Date())
+    this.setData({ inputDate: today, items: app.globalData.items })
+    this.loadExisting(today)
+  },
+
+  onShow: function () {
+    var items = app.globalData.items
+    if (items.length !== this.data.items.length ||
+        items.some(function (v, i) { return v !== this.data.items[i] }, this)) {
+      this.setData({ items: items })
+    }
+    this.loadExisting(this.data.inputDate)
+  },
+
+  loadExisting: function (date) {
+    var records = app.globalData.records.filter(function (r) { return r.date === date })
+    this.setData({ existingRecords: records })
+  },
+
+  onDateChange: function (e) {
+    var date = e.detail.value
+    this.setData({ inputDate: date, values: {} })
+    this.loadExisting(date)
+  },
+
+  onValueInput: function (e) {
+    var item = e.currentTarget.dataset.item
+    var value = e.detail.value
+    var update = {}
+    update["values." + item] = value
+    this.setData(update)
+  },
+
+  onSubmit: function () {
+    var items = this.data.items
+    var inputDate = this.data.inputDate
+    var values = this.data.values
+    var savedCount = 0
+    var that = this
+
+    items.forEach(function (item) {
+      var raw = values[item]
+      if (!raw || raw.trim() === "") return
+      var v = parseFloat(raw)
+      if (isNaN(v) || v <= 0) return
+
+      var existing = app.globalData.records.find(function (r) { return r.item === item && r.date === inputDate })
+      if (existing) {
+        existing.value = v
+      } else {
+        app.addRecord({ item: item, date: inputDate, value: v })
+      }
+      savedCount++
+    })
+
+    if (savedCount === 0) {
+      wx.showToast({ title: "请至少输入一项有效数值", icon: "none" })
+      return
+    }
+
+    app.saveData()
+    this.setData({ values: {} })
+    this.loadExisting(inputDate)
+    wx.showToast({ title: "已保存 " + savedCount + " 项", icon: "success", duration: 1500 })
+  },
+
+  goItems: function () {
+    wx.navigateTo({ url: '/pages/items/items' })
+  },
+
+  formatDate: function (d) {
+    var y = d.getFullYear()
+    var m = String(d.getMonth() + 1)
+    if (m.length === 1) m = "0" + m
+    var day = String(d.getDate())
+    if (day.length === 1) day = "0" + day
+    return y + "-" + m + "-" + day
+  }
+})
diff --git a/pages/entry/entry.json b/pages/entry/entry.json
new file mode 100644
index 0000000..a54ba65
--- /dev/null
+++ b/pages/entry/entry.json
@@ -0,0 +1,4 @@
+{
+  "navigationBarTitleText": "录入检查数据",
+  "usingComponents": {}
+}
diff --git a/pages/entry/entry.wxml b/pages/entry/entry.wxml
new file mode 100644
index 0000000..325438f
--- /dev/null
+++ b/pages/entry/entry.wxml
@@ -0,0 +1,61 @@
+<!-- 录入检查数据 -->
+<view class="container">
+  <!-- 日期选择 -->
+  <view class="card card-date">
+    <view class="card-title">选择日期</view>
+    <picker mode="date" value="{{inputDate}}" bindchange="onDateChange">
+      <view class="date-display">
+        <text class="date-icon">📅</text>
+        <text class="date-text">{{inputDate}}</text>
+        <text class="date-arrow">&#x25BC;</text>
+      </view>
+    </picker>
+  </view>
+
+  <!-- 数据录入两列表格 -->
+  <view class="card card-entry-form" wx:if="{{items.length > 0}}">
+    <view class="card-title">录入数据</view>
+    <!-- 表头 -->
+    <view class="entry-header">
+      <text class="entry-header-left">检查项目</text>
+      <text class="entry-header-right">数值</text>
+    </view>
+    <!-- 数据行 -->
+    <view class="entry-row" wx:for="{{items}}" wx:key="*this">
+      <view class="entry-cell entry-cell--label">
+        <text>{{item}}</text>
+      </view>
+      <view class="entry-cell entry-cell--input">
+        <input
+          class="entry-input"
+          type="digit"
+          placeholder="请输入"
+          value="{{values[item] || ''}}"
+          data-item="{{item}}"
+          bindinput="onValueInput"
+          confirm-type="next"
+        />
+      </view>
+    </view>
+    <!-- 提交按钮 -->
+    <button class="btn-submit" bindtap="onSubmit">保存全部数据</button>
+  </view>
+
+  <!-- 无项目提示 -->
+  <view class="card" wx:else>
+    <view class="empty-hint">
+      <text>暂无检查项目，请先前往「管理检查项目」添加</text>
+      <button class="btn-goto" bindtap="goItems">前往添加</button>
+    </view>
+  </view>
+
+  <!-- 提示：已有数据 -->
+  <view class="card card-existing" wx:if="{{existingRecords.length > 0}}">
+    <view class="card-title">今日已有记录</view>
+    <view class="existing-row" wx:for="{{existingRecords}}" wx:key="item">
+      <text class="existing-item">{{item.item}}</text>
+      <text class="existing-value">{{item.value}}</text>
+    </view>
+    <view class="existing-note">修改上方数值后保存将覆盖原有数据</view>
+  </view>
+</view>
diff --git a/pages/entry/entry.wxss b/pages/entry/entry.wxss
new file mode 100644
index 0000000..90e8dcf
--- /dev/null
+++ b/pages/entry/entry.wxss
@@ -0,0 +1,162 @@
+/* ===== 录入检查数据 ===== */
+
+/* 日期选择 */
+.card-date {
+  margin-bottom: 20rpx;
+}
+
+.date-display {
+  display: flex;
+  align-items: center;
+  padding: 20rpx 24rpx;
+  border: 1rpx solid #e2e8f0;
+  border-radius: 10rpx;
+  background: #f7fafc;
+}
+
+.date-icon {
+  font-size: 32rpx;
+  margin-right: 12rpx;
+}
+
+.date-text {
+  flex: 1;
+  font-size: 30rpx;
+  color: #2d3748;
+  font-weight: 500;
+}
+
+.date-arrow {
+  font-size: 20rpx;
+  color: #a0aec0;
+}
+
+/* 表头 */
+.entry-header {
+  display: flex;
+  background: #f7fafc;
+  border-radius: 8rpx 8rpx 0 0;
+  padding: 16rpx 0;
+  border-bottom: 2rpx solid #e2e8f0;
+}
+
+.entry-header-left,
+.entry-header-right {
+  font-size: 26rpx;
+  font-weight: 600;
+  color: #4a5568;
+  text-align: center;
+}
+
+.entry-header-left {
+  flex: 1;
+}
+
+.entry-header-right {
+  width: 180rpx;
+}
+
+/* 数据行 */
+.entry-row {
+  display: flex;
+  align-items: center;
+  border-bottom: 1rpx solid #edf2f7;
+}
+
+.entry-row:last-of-type {
+  border-bottom: none;
+}
+
+.entry-cell {
+  padding: 12rpx 8rpx;
+}
+
+.entry-cell--label {
+  flex: 1;
+  font-size: 28rpx;
+  color: #2d3748;
+  font-weight: 500;
+  text-align: center;
+}
+
+.entry-cell--input {
+  width: 180rpx;
+}
+
+.entry-input {
+  width: 100%;
+  padding: 12rpx 16rpx;
+  border: 1rpx solid #e2e8f0;
+  border-radius: 8rpx;
+  background: #fff;
+  font-size: 26rpx;
+  text-align: center;
+  box-sizing: border-box;
+  height: 56rpx;
+}
+
+.entry-input:focus {
+  border-color: #2c7a7b;
+  background: #e6f2f2;
+}
+
+/* 提交按钮 */
+.btn-submit {
+  width: 100%;
+  margin-top: 28rpx;
+  background: #2c7a7b;
+  color: #fff;
+  font-size: 30rpx;
+  font-weight: 600;
+  padding: 20rpx 0;
+  border-radius: 10rpx;
+  border: none;
+  line-height: 1.5;
+}
+
+.btn-submit:active {
+  background: #1a5c5d;
+}
+
+/* 前往添加按钮 */
+.btn-goto {
+  margin-top: 20rpx;
+  background: #2c7a7b;
+  color: #fff;
+  font-size: 26rpx;
+  padding: 14rpx 40rpx;
+  border-radius: 8rpx;
+  border: none;
+}
+
+/* 已有记录 */
+.card-existing {
+  margin-top: 20rpx;
+}
+
+.existing-row {
+  display: flex;
+  justify-content: space-between;
+  padding: 14rpx 16rpx;
+  background: #f0fff4;
+  border-radius: 8rpx;
+  margin-bottom: 8rpx;
+}
+
+.existing-item {
+  font-size: 26rpx;
+  color: #4a5568;
+}
+
+.existing-value {
+  font-size: 26rpx;
+  font-weight: 600;
+  color: #38a169;
+}
+
+.existing-note {
+  margin-top: 12rpx;
+  font-size: 22rpx;
+  color: #a0aec0;
+  text-align: center;
+}
diff --git a/pages/home/home.js b/pages/home/home.js
new file mode 100644
index 0000000..1d181c7
--- /dev/null
+++ b/pages/home/home.js
@@ -0,0 +1,31 @@
+var app = getApp()
+
+Page({
+  goEntry: function () {
+    wx.navigateTo({ url: '/pages/entry/entry' })
+  },
+  goItems: function () {
+    wx.navigateTo({ url: '/pages/items/items' })
+  },
+  goTrend: function () {
+    wx.navigateTo({ url: '/pages/trend/trend' })
+  },
+  goDetails: function () {
+    wx.navigateTo({ url: '/pages/details/details' })
+  },
+  onClearAll: function () {
+    var that = this
+    wx.showModal({
+      title: "⚠️ 危险操作",
+      content: "确定要清除所有检查记录吗？\n此操作将删除所有历史数据，但保留检查项目，且不可恢复！",
+      confirmText: "确认清除",
+      confirmColor: "#e53e3e",
+      success: function (res) {
+        if (!res.confirm) return
+        app.globalData.records = []
+        app.saveData()
+        wx.showToast({ title: "已清除全部记录", icon: "success", duration: 1500 })
+      }
+    })
+  }
+})
diff --git a/pages/home/home.json b/pages/home/home.json
new file mode 100644
index 0000000..c369489
--- /dev/null
+++ b/pages/home/home.json
@@ -0,0 +1,4 @@
+{
+  "navigationBarTitleText": "健康数据追踪",
+  "usingComponents": {}
+}
diff --git a/pages/home/home.wxml b/pages/home/home.wxml
new file mode 100644
index 0000000..abe6bad
--- /dev/null
+++ b/pages/home/home.wxml
@@ -0,0 +1,53 @@
+<!-- 首页 - 功能入口 -->
+<view class="container home">
+  <view class="home-header">
+    <text class="home-title">健康数据追踪</text>
+    <text class="home-desc">选择您需要的功能</text>
+  </view>
+
+  <view class="home-grid">
+    <!-- 录入检查数据 -->
+    <view class="home-card" bindtap="goEntry">
+      <view class="home-card-icon home-card-icon--entry">
+        <text class="home-card-emoji">📝</text>
+      </view>
+      <text class="home-card-title">录入检查数据</text>
+      <text class="home-card-desc">记录每日健康指标</text>
+    </view>
+
+    <!-- 管理检查项目 -->
+    <view class="home-card" bindtap="goItems">
+      <view class="home-card-icon home-card-icon--items">
+        <text class="home-card-emoji">⚙️</text>
+      </view>
+      <text class="home-card-title">管理检查项目</text>
+      <text class="home-card-desc">自定义追踪指标</text>
+    </view>
+
+    <!-- 数据趋势 -->
+    <view class="home-card" bindtap="goTrend">
+      <view class="home-card-icon home-card-icon--trend">
+        <text class="home-card-emoji">📈</text>
+      </view>
+      <text class="home-card-title">数据趋势</text>
+      <text class="home-card-desc">查看变化趋势图</text>
+    </view>
+
+    <!-- 数据详细信息 -->
+    <view class="home-card" bindtap="goDetails">
+      <view class="home-card-icon home-card-icon--details">
+        <text class="home-card-emoji">📋</text>
+      </view>
+      <text class="home-card-title">数据详细信息</text>
+      <text class="home-card-desc">浏览与管理数据</text>
+    </view>
+  </view>
+
+  <!-- 清除所有数据 -->
+  <view class="clear-section">
+    <view class="clear-btn" bindtap="onClearAll">
+      <text class="clear-icon">🗑️</text>
+      <text class="clear-text">清除所有历史数据</text>
+    </view>
+  </view>
+</view>
diff --git a/pages/home/home.wxss b/pages/home/home.wxss
new file mode 100644
index 0000000..cee3b92
--- /dev/null
+++ b/pages/home/home.wxss
@@ -0,0 +1,118 @@
+/* ===== 首页 ===== */
+.home {
+  min-height: 100vh;
+  background: linear-gradient(180deg, #e6f2f2 0%, #f5f7fa 30%);
+}
+
+.home-header {
+  text-align: center;
+  padding: 60rpx 0 40rpx;
+}
+
+.home-title {
+  display: block;
+  font-size: 40rpx;
+  font-weight: 700;
+  color: #2c7a7b;
+  margin-bottom: 12rpx;
+}
+
+.home-desc {
+  font-size: 26rpx;
+  color: #718096;
+}
+
+.home-grid {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 20rpx;
+  padding: 0 24rpx;
+}
+
+.home-card {
+  background: #fff;
+  border-radius: 16rpx;
+  padding: 36rpx 24rpx;
+  text-align: center;
+  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
+  transition: transform 0.15s ease, box-shadow 0.15s ease;
+}
+
+.home-card:active {
+  transform: scale(0.97);
+  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
+}
+
+.home-card-icon {
+  width: 88rpx;
+  height: 88rpx;
+  border-radius: 50%;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  margin: 0 auto 20rpx;
+}
+
+.home-card-emoji {
+  font-size: 44rpx;
+  line-height: 1;
+}
+
+.home-card-icon--entry {
+  background: #e6f7ff;
+}
+
+.home-card-icon--items {
+  background: #f0f5ff;
+}
+
+.home-card-icon--trend {
+  background: #f6ffed;
+}
+
+.home-card-icon--details {
+  background: #fff7e6;
+}
+
+.home-card-title {
+  display: block;
+  font-size: 28rpx;
+  font-weight: 600;
+  color: #2d3748;
+  margin-bottom: 8rpx;
+}
+
+.home-card-desc {
+  font-size: 22rpx;
+  color: #a0aec0;
+}
+
+/* 清除数据 */
+.clear-section {
+  padding: 40rpx 24rpx;
+  text-align: center;
+}
+
+.clear-btn {
+  display: inline-flex;
+  align-items: center;
+  gap: 12rpx;
+  padding: 20rpx 40rpx;
+  border: 1rpx dashed #e53e3e;
+  border-radius: 12rpx;
+  background: #fff5f5;
+}
+
+.clear-btn:active {
+  background: #ffe0e0;
+}
+
+.clear-icon {
+  font-size: 32rpx;
+}
+
+.clear-text {
+  font-size: 26rpx;
+  color: #e53e3e;
+  font-weight: 500;
+}
diff --git a/pages/index/index.js b/pages/index/index.js
new file mode 100644
index 0000000..25e9740
--- /dev/null
+++ b/pages/index/index.js
@@ -0,0 +1,10 @@
+Page({
+  onLoad: function () {
+    var that = this
+    setTimeout(function () {
+      wx.redirectTo({
+        url: '/pages/home/home'
+      })
+    }, 2000)
+  }
+})
diff --git a/pages/index/index.json b/pages/index/index.json
new file mode 100644
index 0000000..b16ef3e
--- /dev/null
+++ b/pages/index/index.json
@@ -0,0 +1,4 @@
+{
+  "navigationStyle": "custom",
+  "usingComponents": {}
+}
diff --git a/pages/index/index.wxml b/pages/index/index.wxml
new file mode 100644
index 0000000..19ca988
--- /dev/null
+++ b/pages/index/index.wxml
@@ -0,0 +1,14 @@
+<!-- 启动动画页 -->
+<view class="splash">
+  <view class="splash-content">
+    <view class="splash-icon">
+      <view class="splash-heart"></view>
+    </view>
+    <text class="splash-title">健康数据追踪</text>
+    <text class="splash-subtitle">记录每一次检查，守护您的健康</text>
+  </view>
+
+  <view class="splash-footer">
+    <text class="splash-hospital">南京市中医院</text>
+  </view>
+</view>
diff --git a/pages/index/index.wxss b/pages/index/index.wxss
new file mode 100644
index 0000000..44bee81
--- /dev/null
+++ b/pages/index/index.wxss
@@ -0,0 +1,101 @@
+/* ===== 启动动画页 ===== */
+.splash {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  min-height: 100vh;
+  background: linear-gradient(135deg, #2c7a7b 0%, #1a5c5d 40%, #0f4a4b 100%);
+}
+
+.splash-content {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  animation: fadeInUp 0.8s ease-out;
+}
+
+.splash-icon {
+  margin-bottom: 40rpx;
+  animation: pulse 1.2s ease-in-out infinite;
+}
+
+.splash-heart {
+  width: 120rpx;
+  height: 120rpx;
+  background: #fff;
+  border-radius: 50%;
+  position: relative;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.splash-heart::before {
+  content: "";
+  font-size: 60rpx;
+  color: #2c7a7b;
+}
+
+/* 心跳图标 - 十字医疗符号 */
+.splash-heart {
+  background: rgba(255,255,255,0.95);
+}
+
+.splash-heart::after {
+  content: "+";
+  font-size: 72rpx;
+  font-weight: 300;
+  color: #2c7a7b;
+  line-height: 1;
+}
+
+.splash-title {
+  font-size: 44rpx;
+  font-weight: 700;
+  color: #fff;
+  margin-bottom: 16rpx;
+  letter-spacing: 4rpx;
+}
+
+.splash-subtitle {
+  font-size: 26rpx;
+  color: rgba(255,255,255,0.75);
+  letter-spacing: 2rpx;
+}
+
+@keyframes fadeInUp {
+  from {
+    opacity: 0;
+    transform: translateY(60rpx);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+@keyframes pulse {
+  0%, 100% {
+    transform: scale(1);
+  }
+  50% {
+    transform: scale(1.1);
+  }
+}
+
+/* 底部医院名称 */
+.splash-footer {
+  position: absolute;
+  bottom: 80rpx;
+  left: 0;
+  right: 0;
+  text-align: center;
+  animation: fadeInUp 0.8s ease-out 0.4s both;
+}
+
+.splash-hospital {
+  font-size: 30rpx;
+  color: rgba(255,255,255,0.7);
+  letter-spacing: 6rpx;
+}
diff --git a/pages/items/items.js b/pages/items/items.js
new file mode 100644
index 0000000..bd4344e
--- /dev/null
+++ b/pages/items/items.js
@@ -0,0 +1,50 @@
+var app = getApp()
+
+Page({
+  data: {
+    items: [],
+    newItemName: ""
+  },
+
+  onShow: function () {
+    this.setData({ items: app.globalData.items })
+  },
+
+  onNameInput: function (e) {
+    this.setData({ newItemName: e.detail.value })
+  },
+
+  onAddItem: function () {
+    var name = this.data.newItemName.trim()
+    if (!name) {
+      wx.showToast({ title: "请输入项目名称", icon: "none" })
+      return
+    }
+    if (app.globalData.items.indexOf(name) > -1) {
+      wx.showToast({ title: "该项目已存在", icon: "none" })
+      return
+    }
+    app.addItem(name)
+    this.setData({
+      items: app.globalData.items,
+      newItemName: ""
+    })
+    wx.showToast({ title: "已添加", icon: "success", duration: 1000 })
+  },
+
+  onDeleteItem: function (e) {
+    var item = e.currentTarget.dataset.item
+    var that = this
+    wx.showModal({
+      title: "确认删除",
+      content: "确定删除项目「" + item + "」吗？\n该项目的所有历史数据也将被删除。",
+      confirmColor: "#e53e3e",
+      success: function (res) {
+        if (!res.confirm) return
+        app.removeItem(item)
+        that.setData({ items: app.globalData.items })
+        wx.showToast({ title: "已删除", icon: "success", duration: 1000 })
+      }
+    })
+  }
+})
diff --git a/pages/items/items.json b/pages/items/items.json
new file mode 100644
index 0000000..256cbe8
--- /dev/null
+++ b/pages/items/items.json
@@ -0,0 +1,4 @@
+{
+  "navigationBarTitleText": "管理检查项目",
+  "usingComponents": {}
+}
diff --git a/pages/items/items.wxml b/pages/items/items.wxml
new file mode 100644
index 0000000..b193379
--- /dev/null
+++ b/pages/items/items.wxml
@@ -0,0 +1,44 @@
+<!-- 管理检查项目 -->
+<view class="container">
+  <!-- 新增项目 -->
+  <view class="card card-add">
+    <view class="card-title">新增检查项目</view>
+    <view class="add-row">
+      <input
+        class="add-input"
+        placeholder="输入项目名称，如：血糖"
+        value="{{newItemName}}"
+        bindinput="onNameInput"
+        bindconfirm="onAddItem"
+        confirm-type="done"
+        maxlength="20"
+      />
+      <button class="btn-add" bindtap="onAddItem">新增</button>
+    </view>
+  </view>
+
+  <!-- 项目列表 -->
+  <view class="card card-list" wx:if="{{items.length > 0}}">
+    <view class="card-title">已有项目（共{{items.length}}项）</view>
+    <!-- 表头 -->
+    <view class="list-header">
+      <text class="list-header-left">项目名称</text>
+      <text class="list-header-right">操作</text>
+    </view>
+    <!-- 列表行 -->
+    <view class="list-row" wx:for="{{items}}" wx:key="*this">
+      <view class="list-cell list-cell--name">
+        <view class="list-dot"></view>
+        <text>{{item}}</text>
+      </view>
+      <view class="list-cell list-cell--action">
+        <button class="btn-del" bindtap="onDeleteItem" data-item="{{item}}">删除</button>
+      </view>
+    </view>
+  </view>
+
+  <!-- 无项目 -->
+  <view class="card" wx:else>
+    <view class="empty-hint">暂无检查项目，请在上方添加</view>
+  </view>
+</view>
diff --git a/pages/items/items.wxss b/pages/items/items.wxss
new file mode 100644
index 0000000..7d39fac
--- /dev/null
+++ b/pages/items/items.wxss
@@ -0,0 +1,120 @@
+/* ===== 管理检查项目 ===== */
+
+/* 新增区域 */
+.add-row {
+  display: flex;
+  gap: 16rpx;
+  align-items: center;
+}
+
+.add-input {
+  flex: 1;
+  padding: 16rpx 20rpx;
+  border: 1rpx solid #e2e8f0;
+  border-radius: 8rpx;
+  background: #f7fafc;
+  font-size: 28rpx;
+  height: 56rpx;
+  box-sizing: border-box;
+}
+
+.add-input:focus {
+  border-color: #2c7a7b;
+  background: #fff;
+}
+
+.btn-add {
+  flex-shrink: 0;
+  width: 130rpx;
+  height: 56rpx;
+  line-height: 56rpx;
+  font-size: 26rpx;
+  font-weight: 500;
+  color: #fff;
+  background: #2c7a7b;
+  border-radius: 8rpx;
+  padding: 0;
+  text-align: center;
+  border: none;
+}
+
+.btn-add:active {
+  background: #1a5c5d;
+}
+
+/* 列表表头 */
+.list-header {
+  display: flex;
+  background: #f7fafc;
+  border-radius: 8rpx 8rpx 0 0;
+  padding: 16rpx 0;
+  border-bottom: 2rpx solid #e2e8f0;
+}
+
+.list-header-left,
+.list-header-right {
+  font-size: 26rpx;
+  font-weight: 600;
+  color: #4a5568;
+  text-align: center;
+}
+
+.list-header-left {
+  flex: 1;
+}
+
+.list-header-right {
+  width: 140rpx;
+}
+
+/* 列表行 */
+.list-row {
+  display: flex;
+  align-items: center;
+  padding: 20rpx 8rpx;
+  border-bottom: 1rpx solid #edf2f7;
+}
+
+.list-row:last-of-type {
+  border-bottom: none;
+}
+
+.list-cell--name {
+  flex: 1;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 10rpx;
+  font-size: 28rpx;
+  color: #2d3748;
+  font-weight: 500;
+}
+
+.list-dot {
+  width: 10rpx;
+  height: 10rpx;
+  border-radius: 50%;
+  background: #2c7a7b;
+  flex-shrink: 0;
+}
+
+.list-cell--action {
+  width: 140rpx;
+  display: flex;
+  justify-content: center;
+}
+
+.btn-del {
+  padding: 8rpx 24rpx;
+  font-size: 24rpx;
+  color: #e53e3e;
+  background: #fff;
+  border: 1rpx solid #e53e3e;
+  border-radius: 6rpx;
+  line-height: 1.5;
+  text-align: center;
+}
+
+.btn-del:active {
+  background: #fff5f5;
+}
diff --git a/pages/trend/trend.js b/pages/trend/trend.js
new file mode 100644
index 0000000..7404c31
--- /dev/null
+++ b/pages/trend/trend.js
@@ -0,0 +1,219 @@
+var app = getApp()
+var drawChart = require("../../utils/chart").drawChart
+
+var COLORS = ["#e53e3e", "#3182ce", "#38a169", "#d69e2e", "#805ad5", "#dd6b20", "#319795", "#d53f8c"]
+
+Page({
+  data: {
+    items: [],
+    filterItems: [],
+    viewMode: "month",
+    filterMonth: "",
+    filterYear: "",
+    customStart: "",
+    customEnd: "",
+    hasData: false,
+    colors: COLORS
+  },
+
+  onLoad: function () {
+    var today = this.formatDate(new Date(), "day")
+    var month = today.slice(0, 7)
+    var year = today.slice(0, 4)
+    var items = app.globalData.items
+    this.setData({
+      items: items,
+      filterItems: items.slice(),
+      filterMonth: month,
+      filterYear: year,
+      customStart: month,
+      customEnd: month
+    })
+  },
+
+  onReady: function () {
+    this._initCanvas()
+  },
+
+  onShow: function () {
+    var items = app.globalData.items
+    if (items.length !== this.data.items.length ||
+        items.some(function (v, i) { return v !== this.data.items[i] }, this)) {
+      this.setData({ items: items })
+      var newFilter = items.filter(function (i) { return this.data.items.indexOf(i) === -1 }, this)
+      if (newFilter.length > 0) {
+        this.setData({ filterItems: this.data.filterItems.concat(newFilter) })
+      }
+    }
+    if (this._canvasReady) {
+      this.refreshChart()
+    }
+  },
+
+  _initCanvas: function () {
+    var that = this
+    wx.createSelectorQuery().in(this)
+      .select("#trendCanvas")
+      .boundingClientRect(function (rect) {
+        if (!rect || rect.width <= 0) return
+        var dpr = wx.getWindowInfo().pixelRatio
+        that._canvasW = rect.width
+        that._canvasH = rect.height
+        that.canvasCtx = wx.createCanvasContext('trendCanvas', that)
+        that.canvasCtx.scale(dpr, dpr)
+        that._canvasReady = true
+        that.refreshChart()
+      })
+      .exec()
+  },
+
+  getDateRange: function () {
+    var viewMode = this.data.viewMode
+    var filterMonth = this.data.filterMonth
+    var filterYear = this.data.filterYear
+    var customStart = this.data.customStart
+    var customEnd = this.data.customEnd
+    var start, end, parts, y, m, sy, sm, ey, em
+
+    if (viewMode === "month") {
+      parts = filterMonth.split("-")
+      y = Number(parts[0])
+      m = Number(parts[1])
+      start = new Date(y, m - 1, 1)
+      end = new Date(y, m, 0)
+    } else if (viewMode === "year") {
+      y = parseInt(filterYear)
+      start = new Date(y, 0, 1)
+      end = new Date(y, 11, 31)
+    } else {
+      parts = customStart.split("-")
+      sy = Number(parts[0])
+      sm = Number(parts[1])
+      parts = customEnd.split("-")
+      ey = Number(parts[0])
+      em = Number(parts[1])
+      start = new Date(sy, sm - 1, 1)
+      end = new Date(ey, em, 0)
+    }
+    return { start: start, end: end }
+  },
+
+  refreshChart: function () {
+    var records = app.globalData.records
+    var filterItems = this.data.filterItems
+    var range = this.getDateRange()
+    var start = range.start
+    var end = range.end
+
+    var inRange = function (r) {
+      var d = new Date(r.date + "T00:00:00")
+      return d >= start && d <= end
+    }
+
+    var filtered = records.filter(function (r) {
+      return inRange(r) && filterItems.indexOf(r.item) > -1
+    })
+
+    if (filtered.length === 0) {
+      this.setData({ hasData: false })
+      return
+    }
+
+    var dateMap = {}
+    filtered.forEach(function (r) {
+      if (!dateMap[r.date]) dateMap[r.date] = {}
+      if (!dateMap[r.date][r.item]) {
+        dateMap[r.date][r.item] = { sum: 0, count: 0 }
+      }
+      dateMap[r.date][r.item].sum += r.value
+      dateMap[r.date][r.item].count += 1
+    })
+
+    var dates = Object.keys(dateMap).sort()
+    var xLabels = dates.map(function (d) { return d.slice(5) })
+    var series = filterItems.map(function (fi) {
+      return {
+        name: fi,
+        data: dates.map(function (d) {
+          var entry = dateMap[d][fi]
+          if (!entry) return null
+          return Math.round((entry.sum / entry.count) * 100) / 100
+        })
+      }
+    })
+
+    this._chartData = { xLabels: xLabels, series: series }
+    var that = this
+    this.setData({ hasData: true }, function () { that.drawChart() })
+  },
+
+  drawChart: function () {
+    if (!this.canvasCtx || !this._canvasW || !this._canvasH) return
+    var chartData = this._chartData
+    if (!chartData || !chartData.xLabels.length) return
+    var filterItems = this.data.filterItems
+    var items = this.data.items
+    var colors = this.data.colors
+    var that = this
+    drawChart(this.canvasCtx, this._canvasW, this._canvasH, {
+      xLabels: chartData.xLabels,
+      series: chartData.series,
+      colors: filterItems.map(function (fi) {
+        return colors[items.indexOf(fi) % colors.length]
+      })
+    })
+  },
+
+  onSwitchMode: function (e) {
+    var that = this
+    this.setData({ viewMode: e.currentTarget.dataset.mode }, function () { that.refreshChart() })
+  },
+
+  onMonthChange: function (e) {
+    var that = this
+    this.setData({ filterMonth: e.detail.value }, function () { that.refreshChart() })
+  },
+
+  onYearChange: function (e) {
+    var that = this
+    this.setData({ filterYear: e.detail.value }, function () { that.refreshChart() })
+  },
+
+  onCustomStartChange: function (e) {
+    var that = this
+    this.setData({ customStart: e.detail.value }, function () { that.refreshChart() })
+  },
+
+  onCustomEndChange: function (e) {
+    var that = this
+    this.setData({ customEnd: e.detail.value }, function () { that.refreshChart() })
+  },
+
+  onToggleItem: function (e) {
+    var item = e.currentTarget.dataset.item
+    var filterItems = this.data.filterItems.slice()
+    var idx = filterItems.indexOf(item)
+    var that = this
+    if (idx > -1) {
+      if (filterItems.length <= 1) {
+        wx.showToast({ title: "至少保留一个项目", icon: "none" })
+        return
+      }
+      filterItems.splice(idx, 1)
+    } else {
+      filterItems.push(item)
+    }
+    this.setData({ filterItems: filterItems }, function () { that.refreshChart() })
+  },
+
+  formatDate: function (d, mode) {
+    var y = d.getFullYear()
+    var m = String(d.getMonth() + 1)
+    if (m.length === 1) m = "0" + m
+    var day = String(d.getDate())
+    if (day.length === 1) day = "0" + day
+    if (mode === "year") return String(y)
+    if (mode === "month") return y + "-" + m
+    return y + "-" + m + "-" + day
+  }
+})
diff --git a/pages/trend/trend.json b/pages/trend/trend.json
new file mode 100644
index 0000000..905d486
--- /dev/null
+++ b/pages/trend/trend.json
@@ -0,0 +1,4 @@
+{
+  "navigationBarTitleText": "数据趋势",
+  "usingComponents": {}
+}
diff --git a/pages/trend/trend.wxml b/pages/trend/trend.wxml
new file mode 100644
index 0000000..63007e2
--- /dev/null
+++ b/pages/trend/trend.wxml
@@ -0,0 +1,74 @@
+<!-- 数据趋势 -->
+<view class="container">
+  <!-- 时间范围选择 -->
+  <view class="card card-filter">
+    <view class="mode-tabs">
+      <view class="mode-tab {{viewMode === 'month' ? 'mode-tab--active' : ''}}" bindtap="onSwitchMode" data-mode="month">按月</view>
+      <view class="mode-tab {{viewMode === 'year' ? 'mode-tab--active' : ''}}" bindtap="onSwitchMode" data-mode="year">按年</view>
+      <view class="mode-tab {{viewMode === 'custom' ? 'mode-tab--active' : ''}}" bindtap="onSwitchMode" data-mode="custom">自定义</view>
+    </view>
+
+    <!-- 按月选择 -->
+    <view wx:if="{{viewMode === 'month'}}" class="filter-row">
+      <picker mode="date" fields="month" value="{{filterMonth}}" bindchange="onMonthChange">
+        <view class="picker-display">
+          <text>{{filterMonth}}</text>
+          <text class="picker-arrow">&#x25BC;</text>
+        </view>
+      </picker>
+    </view>
+
+    <!-- 按年选择 -->
+    <view wx:if="{{viewMode === 'year'}}" class="filter-row">
+      <picker mode="date" fields="year" value="{{filterYear}}" bindchange="onYearChange">
+        <view class="picker-display">
+          <text>{{filterYear}}</text>
+          <text class="picker-arrow">&#x25BC;</text>
+        </view>
+      </picker>
+    </view>
+
+    <!-- 自定义时间范围 -->
+    <view wx:if="{{viewMode === 'custom'}}" class="filter-row custom-range">
+      <picker mode="date" fields="month" value="{{customStart}}" bindchange="onCustomStartChange">
+        <view class="picker-display picker-display--sm">
+          <text class="picker-label-sm">从</text>
+          <text>{{customStart}}</text>
+        </view>
+      </picker>
+      <text class="range-sep">至</text>
+      <picker mode="date" fields="month" value="{{customEnd}}" bindchange="onCustomEndChange">
+        <view class="picker-display picker-display--sm">
+          <text>{{customEnd}}</text>
+        </view>
+      </picker>
+    </view>
+  </view>
+
+  <!-- 项目筛选 -->
+  <view class="card card-items">
+    <view class="card-title">选择展示项目（可多选）</view>
+    <view class="items-tags">
+      <block wx:for="{{items}}" wx:key="*this" wx:for-index="si">
+        <view
+          class="item-tag {{filterItems.indexOf(item) > -1 ? 'item-tag--active' : ''}}"
+          style="{{filterItems.indexOf(item) > -1 ? 'border-color:' + colors[si % colors.length] + '; color:' + colors[si % colors.length] + '; background:' + colors[si % colors.length] + '18;' : ''}}"
+          bindtap="onToggleItem"
+          data-item="{{item}}"
+        >
+          <view class="item-tag-dot" style="background-color:{{colors[si % colors.length]}};"></view>
+          <text>{{item}}</text>
+        </view>
+      </block>
+    </view>
+  </view>
+
+  <!-- 趋势图 -->
+  <view class="card card-chart">
+    <view class="card-title">趋势图</view>
+    <canvas canvas-id="trendCanvas" id="trendCanvas" class="chart-canvas"></canvas>
+    <view class="chart-empty-overlay" wx:if="{{!hasData}}">
+      <text class="empty-hint">暂无数据</text>
+    </view>
+  </view>
+</view>
diff --git a/pages/trend/trend.wxss b/pages/trend/trend.wxss
new file mode 100644
index 0000000..ecff3ef
--- /dev/null
+++ b/pages/trend/trend.wxss
@@ -0,0 +1,97 @@
+/* ===== 数据趋势 ===== */
+
+/* 筛选行 */
+.filter-row {
+  margin-top: 4rpx;
+}
+
+.custom-range {
+  display: flex;
+  align-items: center;
+  gap: 16rpx;
+}
+
+.range-sep {
+  font-size: 26rpx;
+  color: #718096;
+  flex-shrink: 0;
+}
+
+.picker-display {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 16rpx 24rpx;
+  border: 1rpx solid #e2e8f0;
+  border-radius: 8rpx;
+  background: #f7fafc;
+  font-size: 28rpx;
+  color: #2d3748;
+}
+
+.picker-display--sm {
+  flex: 1;
+  padding: 12rpx 16rpx;
+  font-size: 26rpx;
+}
+
+.picker-arrow {
+  font-size: 20rpx;
+  color: #a0aec0;
+  margin-left: 10rpx;
+}
+
+.picker-label-sm {
+  color: #a0aec0;
+  margin-right: 8rpx;
+}
+
+/* 项目标签 */
+.items-tags {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 12rpx;
+}
+
+.item-tag {
+  display: flex;
+  align-items: center;
+  gap: 8rpx;
+  padding: 10rpx 20rpx;
+  border-radius: 20rpx;
+  font-size: 24rpx;
+  color: #718096;
+  background: #edf2f7;
+  border: 1rpx solid #e2e8f0;
+}
+
+.item-tag--active {
+  font-weight: 500;
+}
+
+.item-tag-dot {
+  width: 12rpx;
+  height: 12rpx;
+  border-radius: 50%;
+  flex-shrink: 0;
+}
+
+/* 图表 */
+.card-chart {
+  position: relative;
+  overflow: hidden;
+}
+
+.chart-canvas {
+  width: 100%;
+  height: 460rpx;
+}
+
+.chart-empty-overlay {
+  position: absolute;
+  top: 55%;
+  left: 0;
+  right: 0;
+  text-align: center;
+  pointer-events: none;
+}
diff --git a/project.config.json b/project.config.json
new file mode 100644
index 0000000..41a8b4b
--- /dev/null
+++ b/project.config.json
@@ -0,0 +1,26 @@
+{
+  "setting": {
+    "es6": true,
+    "postcss": true,
+    "minified": true,
+    "uglifyFileName": false,
+    "enhance": true,
+    "packNpmRelationList": [],
+    "babelSetting": {
+      "ignore": [],
+      "disablePlugins": [],
+      "outputPath": ""
+    },
+    "useCompilerPlugins": false,
+    "minifyWXML": true
+  },
+  "compileType": "miniprogram",
+  "simulatorPluginLibVersion": {},
+  "packOptions": {
+    "ignore": [],
+    "include": []
+  },
+  "appid": "wxefee3681fb349e54",
+  "editorSetting": {},
+  "testRoot": "minitest/"
+}
\ No newline at end of file
diff --git a/project.private.config.json b/project.private.config.json
new file mode 100644
index 0000000..2b46f79
--- /dev/null
+++ b/project.private.config.json
@@ -0,0 +1,14 @@
+{
+  "libVersion": "3.15.2",
+  "projectname": "%E5%BE%AE%E4%BF%A1%E5%B0%8F%E7%A8%8B%E5%BA%8F",
+  "setting": {
+    "urlCheck": true,
+    "coverView": true,
+    "lazyloadPlaceholderEnable": false,
+    "skylineRenderEnable": false,
+    "preloadBackgroundData": false,
+    "autoAudits": false,
+    "showShadowRootInWxmlPanel": true,
+    "compileHotReLoad": true
+  }
+}
\ No newline at end of file
diff --git a/sitemap.json b/sitemap.json
new file mode 100644
index 0000000..6b83b54
--- /dev/null
+++ b/sitemap.json
@@ -0,0 +1 @@
+{"rules":[{"action":"allow","page":"*"}]}
diff --git a/utils/chart.js b/utils/chart.js
new file mode 100644
index 0000000..757d87e
--- /dev/null
+++ b/utils/chart.js
@@ -0,0 +1,119 @@
+var PADDING = { top: 24, right: 16, bottom: 44, left: 48 }
+
+function drawChart(ctx, w, h, opts) {
+  var xLabels = opts.xLabels
+  var series = opts.series
+  var colors = opts.colors
+  if (!xLabels.length || !series.length) return
+
+  ctx.clearRect(0, 0, w, h)
+
+  var plotW = w - PADDING.left - PADDING.right
+  var plotH = h - PADDING.top - PADDING.bottom
+  var cx = PADDING.left
+  var cy = PADDING.top
+
+  var yMin = Infinity, yMax = -Infinity
+  series.forEach(function (s) {
+    s.data.forEach(function (v) {
+      if (v !== null && v !== undefined) {
+        if (v < yMin) yMin = v
+        if (v > yMax) yMax = v
+      }
+    })
+  })
+  if (!isFinite(yMin) || !isFinite(yMax)) return
+
+  var yRange = yMax - yMin || 1
+  yMin = Math.floor(yMin - yRange * 0.1)
+  yMax = Math.ceil(yMax + yRange * 0.1)
+  if (yMin < 0 && yMin + yRange * 0.1 > 0) yMin = 0
+  var realRange = yMax - yMin
+
+  var toX = function (i) { return cx + (i / Math.max(xLabels.length - 1, 1)) * plotW }
+  var toY = function (v) { return cy + plotH - ((v - yMin) / realRange) * plotH }
+
+  var gridCount = Math.min(5, Math.ceil(realRange))
+  ctx.strokeStyle = "#edf2f7"
+  ctx.lineWidth = 0.5
+  ctx.setLineDash([4, 4])
+  ctx.font = "10px -apple-system, sans-serif"
+  ctx.fillStyle = "#a0aec0"
+  ctx.textAlign = "right"
+  ctx.textBaseline = "middle"
+
+  for (var i = 0; i <= gridCount; i++) {
+    var val = yMin + (realRange * i) / gridCount
+    var y = toY(val)
+    ctx.beginPath()
+    ctx.moveTo(cx, y)
+    ctx.lineTo(cx + plotW, y)
+    ctx.stroke()
+    ctx.fillText(formatVal(val), cx - 6, y)
+  }
+  ctx.setLineDash([])
+
+  var maxLabels = Math.floor(plotW / 50)
+  var step = Math.max(1, Math.ceil(xLabels.length / maxLabels))
+  ctx.textAlign = "center"
+  ctx.textBaseline = "top"
+  ctx.fillStyle = "#718096"
+  for (var i = 0; i < xLabels.length; i += step) {
+    ctx.fillText(xLabels[i], toX(i), cy + plotH + 8)
+  }
+
+  ctx.strokeStyle = "#cbd5e0"
+  ctx.lineWidth = 1
+  ctx.beginPath()
+  ctx.moveTo(cx, cy)
+  ctx.lineTo(cx, cy + plotH)
+  ctx.lineTo(cx + plotW, cy + plotH)
+  ctx.stroke()
+
+  series.forEach(function (s, si) {
+    var color = colors[si % colors.length]
+    var points = s.data
+      .map(function (v, i) {
+        if (v !== null && v !== undefined) {
+          return { x: toX(i), y: toY(v), v: v }
+        }
+        return null
+      })
+      .filter(function (p) { return p !== null })
+
+    if (points.length < 2) return
+
+    ctx.strokeStyle = color
+    ctx.lineWidth = 2
+    ctx.lineJoin = "round"
+    ctx.beginPath()
+    ctx.moveTo(points[0].x, points[0].y)
+    for (var i = 1; i < points.length; i++) {
+      ctx.lineTo(points[i].x, points[i].y)
+    }
+    ctx.stroke()
+
+    points.forEach(function (p) {
+      ctx.fillStyle = "#fff"
+      ctx.beginPath()
+      ctx.arc(p.x, p.y, 3.5, 0, Math.PI * 2)
+      ctx.fill()
+      ctx.fillStyle = color
+      ctx.beginPath()
+      ctx.arc(p.x, p.y, 2.5, 0, Math.PI * 2)
+      ctx.fill()
+    })
+  })
+
+  ctx.draw()
+}
+
+function formatVal(v) {
+  if (v === 0) return "0"
+  var abs = Math.abs(v)
+  if (abs >= 1000) return (v / 1000).toFixed(1).replace(/\.0$/, "") + "k"
+  if (abs >= 1) return Number(v.toFixed(1)).toString()
+  return Number(v.toFixed(2)).toString()
+}
+
+module.exports = { drawChart: drawChart }