diff --git a/app.py b/app.py
index d51c5152..b6775c80 100755
--- a/app.py
+++ b/app.py
@@ -11126,9 +11126,9 @@ def get_events_by_mainline():
 
         # 批量查询 related_concepts
         related_concepts_query = db.session.query(
-            RelatedConcept.event_id,
-            RelatedConcept.concept
-        ).filter(RelatedConcept.event_id.in_(event_ids)).all()
+            RelatedConcepts.event_id,
+            RelatedConcepts.concept
+        ).filter(RelatedConcepts.event_id.in_(event_ids)).all()
 
         # 构建 event_id -> concepts 映射
         event_concepts_map = {}  # { event_id: [concept1, concept2, ...] }
diff --git a/src/views/Community/components/DynamicNews/layouts/GroupedFourRowGrid.js b/src/views/Community/components/DynamicNews/layouts/GroupedFourRowGrid.js
deleted file mode 100644
index d8d3aa66..00000000
--- a/src/views/Community/components/DynamicNews/layouts/GroupedFourRowGrid.js
+++ /dev/null
@@ -1,701 +0,0 @@
-// src/views/Community/components/DynamicNews/layouts/GroupedFourRowGrid.js
-// 按主线（lv2）分组的网格布局组件
-
-import React, { useRef, useMemo, useEffect, forwardRef, useImperativeHandle, useState } from 'react';
-import { useVirtualizer } from '@tanstack/react-virtual';
-import {
-  Box,
-  Grid,
-  Spinner,
-  Text,
-  VStack,
-  Center,
-  HStack,
-  IconButton,
-  useBreakpointValue,
-  useColorModeValue,
-  Flex,
-  Badge,
-  Icon,
-  Collapse,
-} from '@chakra-ui/react';
-import { RepeatIcon, ChevronDownIcon, ChevronRightIcon } from '@chakra-ui/icons';
-import DynamicNewsEventCard from '../../EventCard/DynamicNewsEventCard';
-import { getApiBase } from '@utils/apiConfig';
-
-// ============ 概念层级映射缓存 ============
-// 全局缓存，避免重复请求
-let conceptHierarchyCache = null;
-let conceptHierarchyPromise = null;
-
-/**
- * 获取概念层级映射（概念名称 -> lv2）
- * @returns {Promise<Object>} { '煤炭': 'lv2名称', ... }
- */
-const fetchConceptHierarchy = async () => {
-  // 如果已有缓存，直接返回
-  if (conceptHierarchyCache) {
-    return conceptHierarchyCache;
-  }
-
-  // 如果正在请求中，等待结果
-  if (conceptHierarchyPromise) {
-    return conceptHierarchyPromise;
-  }
-
-  // 发起请求
-  conceptHierarchyPromise = (async () => {
-    try {
-      const apiBase = getApiBase();
-      const url = `${apiBase}/concept-api/hierarchy`;
-      console.log('[GroupedFourRowGrid] 🔄 正在请求概念层级:', url);
-
-      const response = await fetch(url);
-      if (!response.ok) {
-        throw new Error(`HTTP error! status: ${response.status}`);
-      }
-      const data = await response.json();
-
-      console.log('[GroupedFourRowGrid] 📦 API 响应数据:', {
-        hasHierarchy: !!data.hierarchy,
-        hierarchyLength: data.hierarchy?.length,
-        keys: Object.keys(data),
-        sample: data.hierarchy?.[0] // 打印第一个 lv1 作为样本
-      });
-
-      // 构建概念名称 -> lv2 映射
-      const mapping = {};
-      const hierarchy = data.hierarchy || data.data?.hierarchy || data || [];
-
-      // 如果 hierarchy 不是数组，尝试其他格式
-      const hierarchyArray = Array.isArray(hierarchy) ? hierarchy : [];
-
-      /**
-       * 递归添加概念到映射
-       * @param {Array} concepts - 概念数组（字符串或对象）
-       * @param {string} lv1Name - lv1 名称
-       * @param {string} lv2Name - lv2 名称
-       * @param {string} lv3Name - lv3 名称（可选）
-       */
-      const addConceptsToMapping = (concepts, lv1Name, lv2Name, lv3Name = null) => {
-        if (!concepts || !Array.isArray(concepts)) return;
-        concepts.forEach(concept => {
-          const conceptName = typeof concept === 'string' ? concept : (concept.name || concept.concept);
-          if (conceptName) {
-            mapping[conceptName] = { lv1: lv1Name, lv2: lv2Name, lv3: lv3Name };
-          }
-        });
-      };
-
-      hierarchyArray.forEach(lv1 => {
-        const lv1Name = lv1.name;
-        const lv2List = lv1.children || [];
-
-        lv2List.forEach(lv2 => {
-          const lv2Name = lv2.name;
-          const lv3List = lv2.children || [];
-
-          // 情况1: lv2 直接包含 concepts（无 lv3）
-          if (lv2.concepts) {
-            addConceptsToMapping(lv2.concepts, lv1Name, lv2Name, null);
-          }
-
-          // 情况2: lv2 包含 lv3 children
-          lv3List.forEach(lv3 => {
-            const lv3Name = lv3.name;
-            // lv3 下的 concepts 或 leaf_concepts
-            const leafConcepts = lv3.concepts || lv3.leaf_concepts || [];
-            addConceptsToMapping(leafConcepts, lv1Name, lv2Name, lv3Name);
-          });
-        });
-      });
-
-      console.log('[GroupedFourRowGrid] ✅ 概念层级映射加载完成，共', Object.keys(mapping).length, '个概念');
-      console.log('[GroupedFourRowGrid] 📋 映射样本:', Object.entries(mapping).slice(0, 10));
-
-      conceptHierarchyCache = mapping;
-      return mapping;
-    } catch (error) {
-      console.error('[GroupedFourRowGrid] ❌ 获取概念层级失败:', error);
-      conceptHierarchyPromise = null; // 允许重试
-      return {};
-    }
-  })();
-
-  return conceptHierarchyPromise;
-};
-
-/**
- * 自定义 Hook：获取概念层级映射
- */
-const useConceptHierarchy = () => {
-  const [hierarchyMap, setHierarchyMap] = useState(conceptHierarchyCache || {});
-  const [loading, setLoading] = useState(!conceptHierarchyCache);
-
-  useEffect(() => {
-    if (!conceptHierarchyCache) {
-      fetchConceptHierarchy().then(map => {
-        setHierarchyMap(map);
-        setLoading(false);
-      });
-    }
-  }, []);
-
-  return { hierarchyMap, loading };
-};
-
-/**
- * 在映射表中查找概念（支持精确匹配和模糊匹配）
- * @param {string} conceptName - 概念名称
- * @param {Object} hierarchyMap - 概念层级映射
- * @returns {Object|null} 匹配到的层级信息
- */
-const findConceptInMap = (conceptName, hierarchyMap) => {
-  if (!conceptName || !hierarchyMap) return null;
-
-  // 1. 精确匹配
-  if (hierarchyMap[conceptName]) {
-    return hierarchyMap[conceptName];
-  }
-
-  // 2. 模糊匹配：遍历映射表，查找包含关系
-  const conceptKeys = Object.keys(hierarchyMap);
-  for (const key of conceptKeys) {
-    // 概念名包含映射表中的关键词，或映射表中的关键词包含概念名
-    if (conceptName.includes(key) || key.includes(conceptName)) {
-      return hierarchyMap[key];
-    }
-  }
-
-  return null;
-};
-
-/**
- * 从事件的 keywords (related_concepts) 中提取所有相关的 lv2 分类
- * @param {Object} event - 事件对象
- * @param {Object} hierarchyMap - 概念层级映射 { 概念名: { lv1, lv2, lv3 } }
- * @returns {Array<string>} lv2 分类名称数组（去重）
- */
-const getEventLv2List = (event, hierarchyMap = {}) => {
-  // keywords 即 related_concepts
-  // 真实数据结构: [{ concept: '煤炭', reason: '...' }, ...]
-  // Mock 数据可能有 hierarchy 字段
-  const keywords = event.keywords || event.related_concepts || [];
-
-  if (!keywords.length) {
-    return ['其他'];
-  }
-
-  const lv2Set = new Set();
-  const unmatchedConcepts = [];  // 记录未匹配的概念
-
-  keywords.forEach(keyword => {
-    // 优先使用 keyword 自带的 hierarchy（Mock 数据）
-    let lv2 = keyword.hierarchy?.lv2;
-
-    // 如果没有，从映射表查找（真实数据）
-    if (!lv2) {
-      const conceptName = keyword.concept || keyword.name || keyword;
-      // 使用模糊匹配
-      const hierarchy = findConceptInMap(conceptName, hierarchyMap);
-      lv2 = hierarchy?.lv2;
-
-      // 记录未匹配的概念（用于调试）
-      if (!lv2 && conceptName) {
-        unmatchedConcepts.push(conceptName);
-      }
-    }
-
-    if (lv2) {
-      lv2Set.add(lv2);
-    }
-  });
-
-  // 调试：输出未匹配的概念（只在有未匹配时输出）
-  if (unmatchedConcepts.length > 0 && lv2Set.size === 0) {
-    console.log(`[GroupedFourRowGrid] 事件 "${event.title?.substring(0, 30)}..." 全部 ${unmatchedConcepts.length} 个概念未匹配:`, unmatchedConcepts);
-  }
-
-  // 如果没有匹配到任何 lv2，返回"其他"
-  if (lv2Set.size === 0) {
-    return ['其他'];
-  }
-
-  return Array.from(lv2Set);
-};
-
-/**
- * 按 lv2 分组事件（一个事件可以属于多个 lv2 分组）
- * @param {Array} events - 事件列表
- * @param {Object} hierarchyMap - 概念层级映射
- * @returns {Array} 分组后的数组 [{ lv2, events: [] }, ...]
- */
-const groupEventsByLv2 = (events, hierarchyMap = {}) => {
-  const groups = {};
-
-  // 调试：检查 hierarchyMap 是否有数据
-  const mapSize = Object.keys(hierarchyMap).length;
-  console.log(`[GroupedFourRowGrid] 概念映射表大小: ${mapSize}`, mapSize > 0 ? '✅' : '❌ 映射表为空！');
-
-  events.forEach(event => {
-    // 获取该事件对应的所有 lv2 分类
-    const lv2List = getEventLv2List(event, hierarchyMap);
-
-    // 将事件添加到每个相关的 lv2 分组中
-    lv2List.forEach(lv2 => {
-      if (!groups[lv2]) {
-        groups[lv2] = [];
-      }
-      groups[lv2].push(event);
-    });
-  });
-
-  // 转换为数组并按事件数量排序（多的在前）
-  const result = Object.entries(groups)
-    .map(([lv2, groupEvents]) => ({
-      lv2,
-      events: groupEvents,
-      eventCount: groupEvents.length,
-    }))
-    .sort((a, b) => b.eventCount - a.eventCount);
-
-  console.log(`[GroupedFourRowGrid] 分组结果:`, result.map(g => `${g.lv2}(${g.eventCount})`).join(', '));
-
-  return result;
-};
-
-/**
- * 单个分组的标题组件
- */
-const GroupHeader = ({ lv2, eventCount, isExpanded, onToggle, colorScheme }) => {
-  const headerBg = useColorModeValue('gray.50', 'gray.700');
-  const headerHoverBg = useColorModeValue('gray.100', 'gray.650');
-  const textColor = useColorModeValue('gray.700', 'gray.200');
-  const borderColor = useColorModeValue('gray.200', 'gray.600');
-
-  // 根据主线类型获取配色（使用关键词匹配）
-  const getColorScheme = (lv2Name) => {
-    if (!lv2Name) return 'gray';
-
-    const name = lv2Name.toLowerCase();
-
-    // AI / 人工智能相关 - 紫色系
-    if (name.includes('ai') || name.includes('人工智能') || name.includes('算力') ||
-        name.includes('大模型') || name.includes('智能体')) {
-      return 'purple';
-    }
-
-    // 半导体 / 芯片相关 - 蓝色系
-    if (name.includes('半导体') || name.includes('芯片') || name.includes('封装') ||
-        name.includes('光刻') || name.includes('硅')) {
-      return 'blue';
-    }
-
-    // 机器人相关 - 粉色系
-    if (name.includes('机器人') || name.includes('人形')) {
-      return 'pink';
-    }
-
-    // 消费电子 / 手机 / XR - 青色系
-    if (name.includes('消费电子') || name.includes('手机') || name.includes('xr') ||
-        name.includes('华为') || name.includes('苹果') || name.includes('终端')) {
-      return 'cyan';
-    }
-
-    // 汽车 / 智能驾驶 - 蓝绿色系
-    if (name.includes('汽车') || name.includes('驾驶') || name.includes('新能源车') ||
-        name.includes('电动车') || name.includes('车路')) {
-      return 'teal';
-    }
-
-    // 新能源 / 电力 / 光伏 - 绿色系
-    if (name.includes('新能源') || name.includes('电力') || name.includes('光伏') ||
-        name.includes('储能') || name.includes('电池') || name.includes('风电') ||
-        name.includes('清洁能源')) {
-      return 'green';
-    }
-
-    // 低空 / 航天 / 卫星 - 橙色系
-    if (name.includes('低空') || name.includes('航天') || name.includes('卫星') ||
-        name.includes('无人机') || name.includes('飞行')) {
-      return 'orange';
-    }
-
-    // 军工 / 国防 - 红色系
-    if (name.includes('军工') || name.includes('国防') || name.includes('军事') ||
-        name.includes('武器') || name.includes('海军')) {
-      return 'red';
-    }
-
-    // 医药 / 医疗 - messenger蓝
-    if (name.includes('医药') || name.includes('医疗') || name.includes('生物') ||
-        name.includes('创新药') || name.includes('器械')) {
-      return 'messenger';
-    }
-
-    // 消费 / 食品 / 零售 - 黄色系
-    if (name.includes('消费') || name.includes('食品') || name.includes('零售') ||
-        name.includes('白酒') || name.includes('饮料')) {
-      return 'yellow';
-    }
-
-    // 传统能源 / 煤炭 / 石油 - 深灰色
-    if (name.includes('煤炭') || name.includes('石油') || name.includes('天然气') ||
-        name.includes('钢铁') || name.includes('有色')) {
-      return 'blackAlpha';
-    }
-
-    // 金融 / 银行 / 券商 - linkedin蓝
-    if (name.includes('金融') || name.includes('银行') || name.includes('券商') ||
-        name.includes('保险') || name.includes('证券')) {
-      return 'linkedin';
-    }
-
-    // 政策 / 国家战略 - 红色
-    if (name.includes('政策') || name.includes('战略') || name.includes('国产替代')) {
-      return 'red';
-    }
-
-    // 市场风格 / 题材 - 灰色
-    if (name.includes('市场') || name.includes('风格') || name.includes('题材')) {
-      return 'gray';
-    }
-
-    return 'gray';
-  };
-
-  const scheme = colorScheme || getColorScheme(lv2);
-
-  return (
-    <Flex
-      align="center"
-      justify="space-between"
-      px={4}
-      py={3}
-      bg={headerBg}
-      borderRadius="md"
-      borderWidth="1px"
-      borderColor={borderColor}
-      cursor="pointer"
-      _hover={{ bg: headerHoverBg }}
-      onClick={onToggle}
-      transition="all 0.2s"
-      mb={2}
-    >
-      <HStack spacing={3}>
-        <Icon
-          as={isExpanded ? ChevronDownIcon : ChevronRightIcon}
-          boxSize={5}
-          color={textColor}
-          transition="transform 0.2s"
-        />
-        <Text fontWeight="semibold" fontSize="md" color={textColor}>
-          {lv2}
-        </Text>
-        <Badge colorScheme={scheme} fontSize="xs" borderRadius="full" px={2}>
-          {eventCount} 条事件
-        </Badge>
-      </HStack>
-    </Flex>
-  );
-};
-
-/**
- * 按主线（lv2）分组的网格布局组件
- */
-const GroupedFourRowGridComponent = forwardRef(({
-  display = 'block',
-  events,
-  columnsPerRow = 4,
-  CardComponent = DynamicNewsEventCard,
-  selectedEvent,
-  onEventSelect,
-  eventFollowStatus,
-  onToggleFollow,
-  getTimelineBoxStyle,
-  borderColor,
-  loadNextPage,
-  onRefreshFirstPage,
-  hasMore,
-  loading,
-  error,
-  onRetry,
-}, ref) => {
-  const parentRef = useRef(null);
-  const isLoadingMore = useRef(false);
-  const lastRefreshTime = useRef(0);
-
-  // 获取概念层级映射（从 /concept-api/hierarchy 接口）
-  const { hierarchyMap, loading: hierarchyLoading } = useConceptHierarchy();
-
-  // 记录每个分组的展开状态
-  const [expandedGroups, setExpandedGroups] = useState({});
-
-  // 滚动条颜色（主题适配）
-  const scrollbarTrackBg = useColorModeValue('#f1f1f1', '#2D3748');
-  const scrollbarThumbBg = useColorModeValue('#888', '#4A5568');
-  const scrollbarThumbHoverBg = useColorModeValue('#555', '#718096');
-
-  // 响应式列数
-  const responsiveColumns = useBreakpointValue({
-    base: 1,
-    sm: 2,
-    md: 2,
-    lg: 3,
-    xl: 4,
-  });
-
-  const actualColumnsPerRow = responsiveColumns || columnsPerRow;
-
-  // 按 lv2 分组事件（使用层级映射）
-  const groupedEvents = useMemo(() => {
-    return groupEventsByLv2(events, hierarchyMap);
-  }, [events, hierarchyMap]);
-
-  // 初始化展开状态（默认全部展开）
-  useEffect(() => {
-    const initialExpanded = {};
-    groupedEvents.forEach(group => {
-      // 只初始化新的分组，保留已有的状态
-      if (expandedGroups[group.lv2] === undefined) {
-        initialExpanded[group.lv2] = true;
-      }
-    });
-    if (Object.keys(initialExpanded).length > 0) {
-      setExpandedGroups(prev => ({ ...prev, ...initialExpanded }));
-    }
-  }, [groupedEvents]);
-
-  // 切换分组展开/折叠
-  const toggleGroup = (lv2) => {
-    setExpandedGroups(prev => ({
-      ...prev,
-      [lv2]: !prev[lv2]
-    }));
-  };
-
-  // 暴露方法给父组件
-  useImperativeHandle(ref, () => ({
-    getScrollPosition: () => {
-      const scrollElement = parentRef.current;
-      if (!scrollElement) return null;
-
-      const { scrollTop, scrollHeight, clientHeight } = scrollElement;
-      const isNearTop = scrollTop < clientHeight * 0.1;
-
-      return {
-        scrollTop,
-        scrollHeight,
-        clientHeight,
-        isNearTop,
-        scrollPercentage: ((scrollTop + clientHeight) / scrollHeight) * 100,
-      };
-    },
-  }), []);
-
-  // 滚动事件处理（无限滚动 + 顶部刷新）
-  useEffect(() => {
-    if (display === 'none') return;
-
-    const scrollElement = parentRef.current;
-    if (!scrollElement) return;
-
-    const handleScroll = async () => {
-      if (isLoadingMore.current || loading) return;
-
-      const { scrollTop, scrollHeight, clientHeight } = scrollElement;
-      const scrollPercentage = (scrollTop + clientHeight) / scrollHeight;
-
-      // 向下滚动：加载更多
-      if (loadNextPage && hasMore && scrollPercentage > 0.9) {
-        isLoadingMore.current = true;
-        await loadNextPage();
-        isLoadingMore.current = false;
-      }
-
-      // 向上滚动到顶部：刷新
-      if (onRefreshFirstPage && scrollTop < clientHeight * 0.1) {
-        const now = Date.now();
-        if (now - lastRefreshTime.current >= 30000) {
-          isLoadingMore.current = true;
-          lastRefreshTime.current = now;
-          await onRefreshFirstPage();
-          isLoadingMore.current = false;
-        }
-      }
-    };
-
-    scrollElement.addEventListener('scroll', handleScroll);
-    return () => scrollElement.removeEventListener('scroll', handleScroll);
-  }, [display, loadNextPage, onRefreshFirstPage, hasMore, loading]);
-
-  // 内容不足时主动加载
-  useEffect(() => {
-    if (display === 'none') return;
-
-    const scrollElement = parentRef.current;
-    if (!scrollElement || !loadNextPage) return;
-
-    const timer = setTimeout(() => {
-      if (isLoadingMore.current || !hasMore || loading) return;
-
-      const { scrollHeight, clientHeight } = scrollElement;
-      if (scrollHeight <= clientHeight) {
-        isLoadingMore.current = true;
-        loadNextPage().finally(() => {
-          isLoadingMore.current = false;
-        });
-      }
-    }, 500);
-
-    return () => clearTimeout(timer);
-  }, [display, events.length, hasMore, loading, loadNextPage]);
-
-  // 错误指示器
-  const renderErrorIndicator = () => {
-    if (!error) return null;
-
-    return (
-      <Center py={6}>
-        <HStack spacing={2}>
-          <Text color="gray.500" fontSize="sm">
-            数据加载失败，
-          </Text>
-          <IconButton
-            icon={<RepeatIcon />}
-            size="sm"
-            colorScheme="blue"
-            variant="ghost"
-            onClick={onRetry}
-            aria-label="刷新"
-          />
-          <Text
-            color="blue.500"
-            fontSize="sm"
-            fontWeight="medium"
-            cursor="pointer"
-            onClick={onRetry}
-            _hover={{ textDecoration: 'underline' }}
-          >
-            刷新
-          </Text>
-        </HStack>
-      </Center>
-    );
-  };
-
-  // 底部加载指示器
-  const renderLoadingIndicator = () => {
-    if (!hasMore) {
-      return (
-        <Center py={6}>
-          <Text color="gray.500" fontSize="sm">
-            已加载全部内容
-          </Text>
-        </Center>
-      );
-    }
-    if (loading) {
-      return (
-        <Center py={6}>
-          <VStack spacing={2}>
-            <Spinner size="md" color="blue.500" thickness="3px" />
-            <Text color="gray.500" fontSize="sm">
-              加载中...
-            </Text>
-          </VStack>
-        </Center>
-      );
-    }
-    return null;
-  };
-
-  return (
-    <Box
-      ref={parentRef}
-      display={display}
-      overflowY="auto"
-      overflowX="hidden"
-      minH="800px"
-      maxH="800px"
-      w="100%"
-      position="relative"
-      px={2}
-      css={{
-        '&::-webkit-scrollbar': { width: '4px' },
-        '&::-webkit-scrollbar-track': {
-          background: scrollbarTrackBg,
-          borderRadius: '10px',
-        },
-        '&::-webkit-scrollbar-thumb': {
-          background: scrollbarThumbBg,
-          borderRadius: '10px',
-        },
-        '&::-webkit-scrollbar-thumb:hover': {
-          background: scrollbarThumbHoverBg,
-        },
-        scrollBehavior: 'smooth',
-        WebkitOverflowScrolling: 'touch',
-      }}
-    >
-      {/* 分组列表 */}
-      <VStack spacing={4} align="stretch" py={2}>
-        {groupedEvents.map((group) => (
-          <Box key={group.lv2}>
-            {/* 分组标题 */}
-            <GroupHeader
-              lv2={group.lv2}
-              eventCount={group.eventCount}
-              isExpanded={expandedGroups[group.lv2]}
-              onToggle={() => toggleGroup(group.lv2)}
-            />
-
-            {/* 分组内容 */}
-            <Collapse in={expandedGroups[group.lv2]} animateOpacity>
-              <Grid
-                templateColumns={`repeat(${actualColumnsPerRow}, 1fr)`}
-                gap={actualColumnsPerRow === 1 ? 3 : 4}
-                w="100%"
-                px={1}
-              >
-                {group.events.map((event, index) => (
-                  <Box key={event.id} w="100%" minW={0}>
-                    <CardComponent
-                      event={event}
-                      index={index}
-                      isFollowing={eventFollowStatus[event.id]?.isFollowing || false}
-                      followerCount={eventFollowStatus[event.id]?.followerCount || event.follower_count || 0}
-                      isSelected={selectedEvent?.id === event.id}
-                      onEventClick={(clickedEvent) => {
-                        onEventSelect(clickedEvent);
-                      }}
-                      onTitleClick={(e) => {
-                        e.preventDefault();
-                        e.stopPropagation();
-                        onEventSelect(event);
-                      }}
-                      onToggleFollow={() => onToggleFollow?.(event.id)}
-                      timelineStyle={getTimelineBoxStyle?.()}
-                      borderColor={borderColor}
-                    />
-                  </Box>
-                ))}
-              </Grid>
-            </Collapse>
-          </Box>
-        ))}
-      </VStack>
-
-      {/* 底部指示器 */}
-      <Box pt={4}>
-        {error ? renderErrorIndicator() : renderLoadingIndicator()}
-      </Box>
-    </Box>
-  );
-});
-
-GroupedFourRowGridComponent.displayName = 'GroupedFourRowGrid';
-
-const GroupedFourRowGrid = React.memo(GroupedFourRowGridComponent);
-
-export default GroupedFourRowGrid;