Refactor: UI & Feature updates (Calculator, UnitConverter, Privacy, Cleanup)

codes/minipro/calculation/miniprogram/pages/index/index.ts

@@ -47,7 +47,7 @@ Component({
     },
 
     goToProfile() {
-      wx.navigateTo({
+      wx.switchTab({
         url: '/pages/profile/profile'
       });
     },
@@ -64,21 +64,28 @@ Component({
         });
     },
 
-    goToRandomDraw() {
+    goToDiscount() {
         wx.navigateTo({
-            url: '/pages/random-draw/random-draw'
+            url: '/pages/discount/discount',
         });
     },
 
-    goToScoreboard() {
+
+    goToHistory() {
         wx.navigateTo({
-            url: '/pages/scoreboard/scoreboard'
+            url: '/pages/history/history',
         });
     },
-
-    goToDateCalc() {
+  
+    goToAbout() {
         wx.navigateTo({
-            url: '/pages/date-calc/date-calc'
+            url: '/pages/about/about',
+        });
+    },
+  
+    goToPrivacy() {
+        wx.navigateTo({
+            url: '/pages/privacy/privacy',
         });
     }
   }

codes/minipro/calculation/miniprogram/pages/index/index.wxml

@@ -33,17 +33,47 @@
                 <view class="arrow-icon">›</view>
             </view>
 
-             <!-- 日期计算 -->
-            <view class="grid-item" bindtap="goToDateCalc" hover-class="grid-item-hover">
-                <view class="icon-box bg-gradient-pink">
-                    <text class="icon">📅</text>
+            <!-- 单位换算 -->
+            <view class="grid-item" bindtap="goToUnitConverter" hover-class="grid-item-hover">
+                <view class="icon-box bg-gradient-green">
+                    <text class="icon">📏</text>
                 </view>
                 <view class="text-box">
-                    <text class="label">日期计算器</text>
-                    <text class="sub-label">日期推算 · 间隔计算 · 农历转换</text>
+                    <text class="label">单位换算</text>
+                    <text class="sub-label">长度 · 重量 · 面积 · 温度</text>
                 </view>
                 <view class="arrow-icon">›</view>
             </view>
+            
+            <!-- 折扣计算 -->
+            <view class="grid-item" bindtap="goToDiscount" hover-class="grid-item-hover">
+                <view class="icon-box bg-gradient-orange">
+                    <text class="icon">🏷️</text>
+                </view>
+                <view class="text-box">
+                    <text class="label">折扣计算</text>
+                    <text class="sub-label">快速计算折后价与节省金额</text>
+                </view>
+                <view class="arrow-icon">›</view>
+            </view>
+        </view>
+
+        <!-- 更多设置 -->
+        <view class="section-title" style="margin-top: 40rpx; display: block;">系统</view>
+        <view class="list-container">
+             <!-- 关于与帮助 -->
+            <view class="list-item" bindtap="goToAbout" hover-class="list-item-hover">
+                <view class="list-icon-box">
+                    <text class="icon-small">ℹ️</text>
+                </view>
+                <text class="list-label">关于与帮助</text>
+                <view class="arrow-icon">›</view>
+            </view>
+        </view>
+
+        <!-- 隐私政策 -->
+        <view class="privacy-link" bindtap="goToPrivacy" style="text-align: center; margin-top: 40rpx; padding-bottom: 20rpx;">
+             <text style="font-size: 24rpx; color: #999;">隐私政策</text>
         </view>
 
         <!-- 推广/banner区域 -->

codes/minipro/calculation/miniprogram/pages/index/index.wxss

@@ -258,3 +258,55 @@ page {
   font-size: 14rpx;
   color: #6c5ce7;
 }
+
+/* 列表容器 */
+.list-container {
+  background-color: #ffffff;
+  border-radius: 20rpx;
+  overflow: hidden;
+  box-shadow: 0 4rpx 16rpx rgba(17, 97, 107, 0.08);
+}
+
+.list-item {
+  display: flex;
+  align-items: center;
+  padding: 30rpx;
+  background-color: #ffffff;
+  transition: background-color 0.1s;
+}
+
+.list-item-hover {
+  background-color: #f9f9f9;
+}
+
+.list-icon-box {
+  width: 56rpx;
+  height: 56rpx;
+  background-color: #EBF4F8;
+  border-radius: 16rpx;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  margin-right: 24rpx;
+}
+
+.icon-small {
+  font-size: 32rpx;
+}
+
+.list-label {
+  flex: 1;
+  font-size: 30rpx;
+  color: #333;
+  font-weight: 500;
+}
+
+.section-title {
+  display: block !important; /* Ensure visibility */
+  font-size: 28rpx;
+  color: #999;
+  margin-bottom: 20rpx;
+  margin-left: 10rpx;
+  font-weight: 500;
+}
+