refactor(Home): 迁移毛玻璃效果到统一配置

- FeatureCard.tsx: 使用 GLASS_BLUR.sm 替代 blur(10px)

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Co-Authored-By: Claude <noreply@anthropic.com>

src/views/Home/components/FeatureCard.tsx

@@ -14,6 +14,7 @@ import {
   Button
 } from '@chakra-ui/react';
 import type { Feature, FeatureClickHandler } from '@/types/home';
+import { GLASS_BLUR } from '@/constants/glassConfig';
 
 interface FeatureCardProps {
   feature: Feature;
@@ -31,7 +32,7 @@ export const FeatureCard: React.FC<FeatureCardProps> = ({
   return (
     <Card
       bg="whiteAlpha.100"
-      backdropFilter="blur(10px)"
+      backdropFilter={GLASS_BLUR.sm}
       border="1px solid"
       borderColor="whiteAlpha.200"
       borderRadius={{ base: 'lg', md: 'xl' }}