update pay function

src/views/ValueForum/PredictionTopicDetail.js

@@ -467,13 +467,15 @@ const PredictionTopicDetail = () => {
                     <Text color={forumColors.text.secondary}>参与人数</Text>
                     <HStack spacing="1">
                       <Icon as={Users} boxSize="14px" />
-                      <Text fontWeight="600">{topic.stats.unique_traders.size}</Text>
+                      <Text fontWeight="600">{topic.participants_count || 0}</Text>
                     </HStack>
                   </HStack>
 
                   <HStack justify="space-between" fontSize="sm">
                     <Text color={forumColors.text.secondary}>总交易量</Text>
-                    <Text fontWeight="600">{Math.round(topic.stats.total_volume)}</Text>
+                    <Text fontWeight="600">
+                      {Math.round((topic.yes_total_shares || 0) + (topic.no_total_shares || 0))}
+                    </Text>
                   </HStack>
                 </VStack>
               </Box>