修改bug：、店铺页面中，每栏的标题名称过大，如：品牌一栏、热门品类 review by 红魔

@@ -99,9 +99,7 @@ let styles = StyleSheet.create({
         backgroundColor:'white',
     },
     titleText: {
-        fontWeight: 'bold',
         textAlign: 'center',
-        color: 'gray',
-        fontSize: 20,
+        fontSize: 16,
     },
 });

@@ -118,10 +118,8 @@ const styles = StyleSheet.create({
 	   	borderBottomWidth: 0.5,
     },
 	text: {
-        fontWeight: 'bold',
 		textAlign: 'left',
-		color: 'gray',
-		fontSize: 20,
+		fontSize: 16,
     },
 	listContainer: {
         width: width / 2,

@@ -126,9 +126,7 @@ const styles = StyleSheet.create({
 		fontSize: 10,
     },
 	text: {
-        fontWeight: 'bold',
 		textAlign: 'center',
-		color: 'gray',
-		fontSize: 20,
+		fontSize: 16,
     },
 });