diff --git a/assets/script/game/common/config/HeroSkillDesc.ts b/assets/script/game/common/config/HeroSkillDesc.ts
index 0b204e0c..a4d6653d 100644
--- a/assets/script/game/common/config/HeroSkillDesc.ts
+++ b/assets/script/game/common/config/HeroSkillDesc.ts
@@ -326,9 +326,11 @@ export function buildSkillDescRich(source: ISkillDescSource): string {
     return buildSkillLines(source)
         .map(l => {
             const prefix = l.prefix.replace(SKILL_NAME_PATTERN, `「<color=${RICH_NAME_COLOR}>$1</color>」`);
-            return l.value
+            const text = l.value
                 ? `${prefix}<color=${RICH_VALUE_COLOR}>${l.value}</color>${l.suffix}`
                 : `${prefix}${l.suffix}`;
+            // 持续时间数值同样高亮（计时 buff 的"持续X秒"）
+            return highlightDuration(text);
         })
         .join("\n");
 }