diff --git a/src/components/news/NewsCard.tsx b/src/components/news/NewsCard.tsx
index 22c4c1a..8a76358 100644
--- a/src/components/news/NewsCard.tsx
+++ b/src/components/news/NewsCard.tsx
@@ -9,18 +9,35 @@ import type { NewsItem } from "@/types/news";
 
 const stripTags = (html?: string | null) => (html ? html.replace(/<[^>]+>/g, "") : "");
 
+// HTMLエンティティをデコード
+const decodeEntities = (text: string) => {
+	const textarea = document.createElement("textarea");
+	textarea.innerHTML = text;
+	return textarea.value;
+};
+
 export default function NewsCard({ item }: { item: NewsItem }) {
 	const summary = useMemo(() => {
 		if (!item.content) return "";
-		const plain = stripTags(item.content);
+		const plain = decodeEntities(stripTags(item.content));
 		return plain.length > 80 ? plain.slice(0, 80) + "…" : plain;
 	}, [item.content]);
-	const href =
-		item.linkurl && item.linkurl !== ""
-			? item.linkurl
-			: item.content
-			? `/news/${item.id}`
-			: null;
+	const href = (() => {
+		const url = item.linkurl?.trim();
+
+		// リンクなし（none/空）の場合は詳細ページへ
+		if (!url || url.toLowerCase() === "none") {
+			return `/news/${item.id}`;
+		}
+
+		// 外部URLはそのまま
+		if (/^https?:\/\//i.test(url)) {
+			return url;
+		}
+
+		// 内部スラッグ（相対指定）の場合
+		return `/news/${url}`;
+	})();
 
 	const target = item.link_target === "_blank" ? "_blank" : "_self";
 	const isExternal = href?.startsWith("http");