style(components): 优惠券相关组件样式调整

- 调整了 CouponCard、CouponList 和 orderConfirm 组件中的字体大小、间距等样式
- 优化了标题、金额、条件等元素的视觉效果
- 统一了按钮和状态文本的样式
-调整了部分布局和对齐方式

src/components/CouponList.tsx

@@ -34,12 +34,12 @@ const CouponList: React.FC<CouponListProps> = ({
     return (
       <View className="p-4">
         {title && (
-          <View className="text-lg font-semibold text-gray-800 mb-4">{title}</View>
+          <View className="font-semibold text-gray-800 mb-4">{title}</View>
         )}
 
         {coupons.length === 0 ? (
           showEmpty && (
-            <View className="text-center py-10 px-5 text-gray-500 text-sm">
+            <View className="text-center py-10 px-5 text-gray-500">
               {emptyText}
             </View>
           )
@@ -61,14 +61,14 @@ const CouponList: React.FC<CouponListProps> = ({
   return (
     <View>
       {title && (
-        <View className="text-lg font-semibold text-gray-800 mb-4 pl-4">
+        <View className="font-semibold text-gray-800 mb-4 pl-4">
           {title}
         </View>
       )}
 
       {coupons.length === 0 ? (
         showEmpty && (
-          <View className="text-center py-10 px-5 text-gray-500 text-sm">
+          <View className="text-center py-10 px-5 text-gray-500">
             {emptyText}
           </View>
         )