style: 统计页站点选择器和日期输入框高度统一

picker-value 和 input 均为 height: 56rpx + padding: 0 20rpx + box-sizing: border-box

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

admin-h5/src/pages/statistics/index.vue

@@ -465,8 +465,10 @@ onMounted(async () => {
   align-items: center;
   background-color: #F5F5F5;
   border-radius: 16rpx;
-  padding: 14rpx 20rpx;
+  padding: 0 20rpx;
   font-size: 26rpx;
+  height: 56rpx;
+  box-sizing: border-box;
 }
 .picker-value .placeholder {
   color: #B0B0B0;
@@ -477,9 +479,10 @@ onMounted(async () => {
 .filter-item input {
   background-color: #F5F5F5;
   border-radius: 16rpx;
-  padding: 14rpx 20rpx;
+  padding: 0 20rpx;
   font-size: 26rpx;
   height: 56rpx;
+  box-sizing: border-box;
 }
 .search-btn {
   width: 100%;