修复日期显示不一致问题：1)在index.php中使用本地时区获取日期字符串，避免toISOString()导致的时区偏差；2)在vip.php中同样修改默认预约日期的获取方式

index.php

@@ -437,13 +437,20 @@ $packages_json = json_encode(array_map(function($package) {
                         for (let dayOffset = 0; dayOffset < 7; dayOffset++) {
                             const date = new Date(pageStartMonday);
                             date.setDate(pageStartMonday.getDate() + dayOffset);
-                            const dateStr = date.toISOString().split('T')[0];
+                            // 确保使用本地时区获取日期字符串
+                            const year = date.getFullYear();
+                            const month = String(date.getMonth() + 1).padStart(2, '0');
+                            const day = String(date.getDate()).padStart(2, '0');
+                            const dateStr = `${year}-${month}-${day}`;
                             const dateDisplay = `${date.getMonth() + 1}/${date.getDate()}`;
                             const weekday = ['日', '一', '二', '三', '四', '五', '六'][date.getDay()];
                             
                             // 获取今天的日期字符串用于比较
                             const today = new Date();
-                            const todayStr = today.toISOString().split('T')[0];
+                            const todayYear = today.getFullYear();
+                            const todayMonth = String(today.getMonth() + 1).padStart(2, '0');
+                            const todayDay = String(today.getDate()).padStart(2, '0');
+                            const todayStr = `${todayYear}-${todayMonth}-${todayDay}`;
                             const isToday = dateStr === todayStr;
                             
                             // 获取预约数量

vip.php

@@ -922,7 +922,11 @@ try {
             document.getElementById('booking_car_number').value = carNumber || '';
             
             // 设置默认预约日期为今天
-            document.getElementById('booking_date').value = new Date().toISOString().split('T')[0];
+            const today = new Date();
+            const year = today.getFullYear();
+            const month = String(today.getMonth() + 1).padStart(2, '0');
+            const day = String(today.getDate()).padStart(2, '0');
+            document.getElementById('booking_date').value = `${year}-${month}-${day}`;
             
             // 清空其他字段
             document.getElementById('booking_time_slot').value = '';