diff --git a/src/constants/importanceLevels.js b/src/constants/importanceLevels.js
index f53d1e40..e84b959f 100644
--- a/src/constants/importanceLevels.js
+++ b/src/constants/importanceLevels.js
@@ -24,6 +24,7 @@ export const IMPORTANCE_LEVELS = {
         icon: WarningIcon,
         label: '极高',
         stampText: '极', // 印章文字
+        stampFont: "'STKaiti', 'KaiTi', 'SimKai', serif", // 楷体
         dotBg: 'red.800',
         description: '重大事件，市场影响深远',
         antdColor: '#cf1322',
@@ -39,6 +40,7 @@ export const IMPORTANCE_LEVELS = {
         icon: WarningTwoIcon,
         label: '高',
         stampText: '高', // 印章文字
+        stampFont: "'STXingkai', 'FangSong', 'STFangsong', cursive", // 行楷/草书
         dotBg: 'red.600',
         description: '重要事件，影响较大',
         antdColor: '#ff4d4f',
@@ -54,6 +56,7 @@ export const IMPORTANCE_LEVELS = {
         icon: InfoIcon,
         label: '中',
         stampText: '中', // 印章文字
+        stampFont: "'STKaiti', 'KaiTi', 'SimKai', serif", // 楷体
         dotBg: 'red.500',
         description: '普通事件，有一定影响',
         antdColor: '#ff7875',
@@ -64,11 +67,12 @@ export const IMPORTANCE_LEVELS = {
         bgColor: 'red.50',
         borderColor: 'red.100',
         colorScheme: 'red',
-        badgeBg: '#6b7280', // 圆形徽章背景色 - 灰色
+        badgeBg: '#10b981', // 圆形徽章背景色 - 青绿色（替代灰色）
         badgeColor: 'white', // 圆形徽章文字颜色 - 白色
         icon: CheckCircleIcon,
         label: '低',
         stampText: '低', // 印章文字
+        stampFont: "'STKaiti', 'KaiTi', 'SimKai', serif", // 楷体
         dotBg: 'red.400',
         description: '参考事件，影响有限',
         antdColor: '#ffa39e',
diff --git a/src/views/Community/components/EventCard/HorizontalDynamicNewsEventCard.js b/src/views/Community/components/EventCard/HorizontalDynamicNewsEventCard.js
index 6ef496f9..8a0ca736 100644
--- a/src/views/Community/components/EventCard/HorizontalDynamicNewsEventCard.js
+++ b/src/views/Community/components/EventCard/HorizontalDynamicNewsEventCard.js
@@ -15,7 +15,7 @@ import {
 import { getImportanceConfig } from '../../../../constants/importanceLevels';
 
 // 导入子组件
-import ImportanceBadge from './ImportanceBadge';
+import ImportanceStamp from './ImportanceStamp';
 import EventTimeline from './EventTimeline';
 import EventFollowButton from './EventFollowButton';
 import StockChangeIndicators from '../../../../components/StockChangeIndicators';
@@ -57,6 +57,40 @@ const HorizontalDynamicNewsEventCard = ({
     const selectedBorderColor = useColorModeValue('blue.500', 'blue.400');
     const linkColor = useColorModeValue('blue.600', 'blue.400');
 
+    /**
+     * 根据平均涨幅计算背景色（分级策略）- 使用毛玻璃效果
+     * @param {number} avgChange - 平均涨跌幅
+     * @returns {string} Chakra UI 颜色值
+     */
+    const getChangeBasedBgColor = (avgChange) => {
+        const numChange = Number(avgChange);
+
+        // 如果没有涨跌幅数据，使用半透明背景
+        if (avgChange == null || isNaN(numChange)) {
+            return useColorModeValue('rgba(255, 255, 255, 0.8)', 'rgba(26, 32, 44, 0.8)');
+        }
+
+        // 根据涨跌幅分级返回半透明背景色（毛玻璃效果）
+        const absChange = Math.abs(numChange);
+        if (numChange > 0) {
+            // 涨：红色系半透明
+            if (absChange >= 9) return useColorModeValue('rgba(254, 202, 202, 0.9)', 'rgba(127, 29, 29, 0.9)');
+            if (absChange >= 7) return useColorModeValue('rgba(254, 202, 202, 0.8)', 'rgba(153, 27, 27, 0.8)');
+            if (absChange >= 5) return useColorModeValue('rgba(254, 226, 226, 0.8)', 'rgba(185, 28, 28, 0.8)');
+            if (absChange >= 3) return useColorModeValue('rgba(254, 226, 226, 0.7)', 'rgba(220, 38, 38, 0.7)');
+            return useColorModeValue('rgba(254, 242, 242, 0.7)', 'rgba(239, 68, 68, 0.7)');
+        } else if (numChange < 0) {
+            // 跌：绿色系半透明
+            if (absChange >= 9) return useColorModeValue('rgba(187, 247, 208, 0.9)', 'rgba(20, 83, 45, 0.9)');
+            if (absChange >= 7) return useColorModeValue('rgba(187, 247, 208, 0.8)', 'rgba(22, 101, 52, 0.8)');
+            if (absChange >= 5) return useColorModeValue('rgba(209, 250, 229, 0.8)', 'rgba(21, 128, 61, 0.8)');
+            if (absChange >= 3) return useColorModeValue('rgba(209, 250, 229, 0.7)', 'rgba(22, 163, 74, 0.7)');
+            return useColorModeValue('rgba(240, 253, 244, 0.7)', 'rgba(34, 197, 94, 0.7)');
+        }
+
+        return useColorModeValue('rgba(255, 255, 255, 0.8)', 'rgba(26, 32, 44, 0.8)');
+    };
+
     return (
         <HStack align="stretch" spacing={3} w="full">
             {/* 左侧时间轴 */}
@@ -67,88 +101,93 @@ const HorizontalDynamicNewsEventCard = ({
                 minHeight="60px"
             />
 
-            {/* 右侧事件卡片 */}
-            <Card
-                flex="1"
-                position="relative"
-                bg={isSelected
-                    ? selectedBg
-                    : (index % 2 === 0 ? cardBg : cardBgAlt)
-                }
-                borderWidth={isSelected ? "2px" : "1px"}
-                borderColor={isSelected
-                    ? selectedBorderColor
-                    : borderColor
-                }
-                borderRadius="md"
-                boxShadow={isSelected ? "lg" : "sm"}
-                overflow="hidden"
-                _hover={{
-                    boxShadow: 'xl',
-                    transform: 'translateY(-2px)',
-                    borderColor: isSelected ? 'blue.600' : importance.color,
-                }}
-                transition="all 0.3s ease"
-                cursor="pointer"
-                onClick={() => onEventClick?.(event)}
-            >
-                <CardBody p={3} pb={2}>
-                    {/* 左上角：重要性标签 */}
-                    <ImportanceBadge importance={event.importance} />
+            {/* 右侧事件卡片容器（带印章） */}
+            <Box flex="1" position="relative" pt={6}>
+                {/* 右上角：重要性印章（放在卡片外层） */}
+                <Box position="absolute" top={-2} right={4} zIndex={10}>
+                    <ImportanceStamp importance={event.importance} size="sm" />
+                </Box>
 
-                    {/* 右上角：关注按钮 */}
-                    <Box position="absolute" top={2} right={2} zIndex={1}>
-                        <EventFollowButton
-                            isFollowing={isFollowing}
-                            followerCount={followerCount}
-                            onToggle={() => onToggleFollow?.(event.id)}
-                            size="xs"
-                            showCount={false}
-                        />
-                    </Box>
+                {/* 事件卡片 */}
+                <Card
+                    position="relative"
+                    bg={isSelected
+                        ? selectedBg
+                        : getChangeBasedBgColor(event.related_avg_chg)
+                    }
+                    backdropFilter="blur(10px)" // 毛玻璃效果
+                    borderWidth={isSelected ? "2px" : "1px"}
+                    borderColor={isSelected
+                        ? selectedBorderColor
+                        : borderColor
+                    }
+                    borderRadius="lg"
+                    boxShadow={isSelected ? "xl" : "md"}
+                    overflow="visible"
+                    _hover={{
+                        boxShadow: '2xl',
+                        transform: 'translateY(-2px)',
+                        borderColor: isSelected ? 'blue.600' : importance.color,
+                    }}
+                    transition="all 0.3s ease"
+                    cursor="pointer"
+                    onClick={() => onEventClick?.(event)}
+                >
+                    <CardBody p={3} pb={2}>
+                        {/* 右上角：关注按钮 */}
+                        <Box position="absolute" top={2} right={2} zIndex={1}>
+                            <EventFollowButton
+                                isFollowing={isFollowing}
+                                followerCount={followerCount}
+                                onToggle={() => onToggleFollow?.(event.id)}
+                                size="xs"
+                                showCount={false}
+                            />
+                        </Box>
 
-                    <VStack align="stretch" spacing={1.5}>
-                        {/* 标题 - 最多两行，hover 显示完整内容 */}
-                        <Tooltip
-                            label={event.title}
-                            placement="top"
-                            hasArrow
-                            bg="gray.700"
-                            color="white"
-                            fontSize="sm"
-                            p={2}
-                            borderRadius="md"
-                            isDisabled={event.title.length < 40}
-                        >
-                            <Box
-                                cursor="pointer"
-                                onClick={(e) => onTitleClick?.(e, event)}
-                                mt={1}
-                                paddingRight="10px"
+                        <VStack align="stretch" spacing={1.5}>
+                            {/* 标题 - 最多两行，hover 显示完整内容 */}
+                            <Tooltip
+                                label={event.title}
+                                placement="top"
+                                hasArrow
+                                bg="gray.700"
+                                color="white"
+                                fontSize="sm"
+                                p={2}
+                                borderRadius="md"
+                                isDisabled={event.title.length < 40}
                             >
-                                <Text
-                                    fontSize="md"
-                                    fontWeight="semibold"
-                                    color={linkColor}
-                                    lineHeight="1.4"
-                                    noOfLines={2}
-                                    _hover={{ textDecoration: 'underline' }}
+                                <Box
+                                    cursor="pointer"
+                                    onClick={(e) => onTitleClick?.(e, event)}
+                                    mt={1}
+                                    paddingRight="10px"
                                 >
-                                    {event.title}
-                                </Text>
-                            </Box>
-                        </Tooltip>
+                                    <Text
+                                        fontSize="md"
+                                        fontWeight="semibold"
+                                        color={linkColor}
+                                        lineHeight="1.4"
+                                        noOfLines={2}
+                                        _hover={{ textDecoration: 'underline' }}
+                                    >
+                                        {event.title}
+                                    </Text>
+                                </Box>
+                            </Tooltip>
 
-                        {/* 第二行：涨跌幅数据 */}
-                        <StockChangeIndicators
-                            avgChange={event.related_avg_chg}
-                            maxChange={event.related_max_chg}
-                            weekChange={event.related_week_chg}
-                            size={indicatorSize}
-                        />
-                    </VStack>
-                </CardBody>
-            </Card>
+                            {/* 第二行：涨跌幅数据 */}
+                            <StockChangeIndicators
+                                avgChange={event.related_avg_chg}
+                                maxChange={event.related_max_chg}
+                                weekChange={event.related_week_chg}
+                                size={indicatorSize}
+                            />
+                        </VStack>
+                    </CardBody>
+                </Card>
+            </Box>
         </HStack>
     );
 };
diff --git a/src/views/Community/components/EventCard/ImportanceStamp.js b/src/views/Community/components/EventCard/ImportanceStamp.js
index 2a2f6e5a..f7df9caf 100644
--- a/src/views/Community/components/EventCard/ImportanceStamp.js
+++ b/src/views/Community/components/EventCard/ImportanceStamp.js
@@ -13,13 +13,23 @@ import { getImportanceConfig } from '../../../../constants/importanceLevels';
  * 重要性印章组件（模拟盖章效果）
  * @param {Object} props
  * @param {string} props.importance - 重要性等级 (S/A/B/C)
+ * @param {string} props.size - 印章尺寸 ('sm' | 'md' | 'lg')
  */
-const ImportanceStamp = ({ importance }) => {
+const ImportanceStamp = ({ importance, size = 'md' }) => {
   const config = getImportanceConfig(importance);
 
   // 印章颜色
   const stampColor = useColorModeValue(config.badgeBg, config.badgeBg);
 
+  // 尺寸配置
+  const sizeConfig = {
+    sm: { outer: '40px', inner: '34px', fontSize: 'md', borderOuter: '2px', borderInner: '1.5px' },
+    md: { outer: '50px', inner: '42px', fontSize: 'xl', borderOuter: '3px', borderInner: '2px' },
+    lg: { outer: '60px', inner: '52px', fontSize: '2xl', borderOuter: '4px', borderInner: '2.5px' },
+  };
+
+  const currentSize = sizeConfig[size];
+
   return (
     <Box
       position="relative"
@@ -28,41 +38,43 @@ const ImportanceStamp = ({ importance }) => {
       {/* 外层圆形边框（双圈） */}
       <Box
         position="relative"
-        w="50px"
-        h="50px"
+        w={currentSize.outer}
+        h={currentSize.outer}
         borderRadius="50%"
-        borderWidth="3px"
+        borderWidth={currentSize.borderOuter}
         borderColor={stampColor}
         display="flex"
         alignItems="center"
         justifyContent="center"
         transform="rotate(-15deg)"
-        opacity={0.85}
-        boxShadow="0 2px 8px rgba(0,0,0,0.15)"
+        opacity={0.9}
+        boxShadow="0 3px 12px rgba(0,0,0,0.2)"
+        bg={useColorModeValue('white', 'gray.800')}
         _hover={{
           opacity: 1,
-          transform: "rotate(-15deg) scale(1.1)",
+          transform: "rotate(-15deg) scale(1.15)",
+          boxShadow: "0 4px 16px rgba(0,0,0,0.3)",
         }}
         transition="all 0.3s ease"
       >
         {/* 内层圆形边框 */}
         <Box
           position="absolute"
-          w="42px"
-          h="42px"
+          w={currentSize.inner}
+          h={currentSize.inner}
           borderRadius="50%"
-          borderWidth="2px"
+          borderWidth={currentSize.borderInner}
           borderColor={stampColor}
         />
 
         {/* 印章文字 */}
         <Text
-          fontSize="xl"
+          fontSize={currentSize.fontSize}
           fontWeight="black"
           color={stampColor}
-          fontFamily="'STKaiti', 'KaiTi', 'SimKai', serif"
+          fontFamily={config.stampFont}
           letterSpacing="2px"
-          textShadow="0 0 1px currentColor"
+          textShadow="0 0 2px currentColor"
         >
           {config.stampText}
         </Text>