feat: 景区详情页优化 + 代码质量修复 + 首页适配

- 详情页：地图按钮改为复制地址，电话点击直接拨号
- 详情页：移除免X次/年徽章，增加信息卡片与卡种卡片间距
- 详情页：运营状态实时判断（根据营业时间自动显示营业中/已闭园）
- 详情页：轮播圆点仅多图时显示，加大尺寸+投影，z-index置顶
- 详情页：景区电话箭头靠右对齐
- 首页：热门景点两列布局改用padding方案，修复小屏手机单列显示
- 代码质量：card/order API移入分包，消除主包未使用JS文件
- 代码质量：manifest启用minified和lazyCodeLoading
- 构建：vite配置静默Sass弃用警告

Co-Authored-By: Claude <noreply@anthropic.com>

src/pages/index/index.vue

@@ -107,21 +107,22 @@
             :key="spot.id"
             class="spot animate-fade-in-up"
             :class="`stagger-${Math.min(idx + 4, 10)}`"
-            @click="goSpot(spot)"
           >
-            <view class="spot-cover">
-              <image class="spot-img" :src="spot.image" mode="aspectFill" />
-              <view class="spot-region">
-                <view class="pin-dot" />
-                <text>{{ spot.region }}</text>
+            <view class="spot-inner" @click="goSpot(spot)">
+              <view class="spot-cover">
+                <image class="spot-img" :src="spot.image" mode="aspectFill" />
+                <view class="spot-region">
+                  <view class="pin-dot" />
+                  <text>{{ spot.region }}</text>
+                </view>
               </view>
-            </view>
-            <view class="spot-body">
-              <text class="spot-name">{{ spot.name }}</text>
-              <view class="spot-meta">
-                <text class="spot-price">¥{{ spot.price }}</text>
-                <view class="spot-benefit">
-                  <text>{{ spot.benefit }}</text>
+              <view class="spot-body">
+                <text class="spot-name">{{ spot.name }}</text>
+                <view class="spot-meta">
+                  <text class="spot-price">¥{{ spot.price }}</text>
+                  <view class="spot-benefit">
+                    <text>{{ spot.benefit }}</text>
+                  </view>
                 </view>
               </view>
             </view>
@@ -588,15 +589,20 @@ function goMore() {
   color: $color-muted-foreground;
 }
 
-/* Spots grid — 2 column */
+/* Spots grid — 2 column (避免 gap 兼容问题，用 padding 模拟间距) */
 .spots-grid {
   display: flex;
   flex-wrap: wrap;
-  gap: $spacing-2;
+  margin: 0 (-$spacing-1);
 }
 
 .spot {
-  width: calc(50% - #{$spacing-1});
+  width: 50%;
+  padding: $spacing-1;
+  box-sizing: border-box;
+}
+
+.spot-inner {
   background: $color-card;
   border-radius: $radius-lg;
   overflow: hidden;