'界面功能优化'

app/topic/components/TopicCurriculum.tsx

@@ -87,7 +87,7 @@ export function TopicCurriculum({ topicId }: TopicCurriculumProps) {
                   <ul className="border-t border-[var(--border)]">
                     {module.lessons.map((lesson, li) => {
                       const origMod = module.originalModuleIndex;
-                      const free = origMod === 0 && li < 2;
+                      const free = false; /* 暂时全部加锁 */
                       const unlocked = canWatchLesson(origMod, li);
                       const key = `${origMod}-${li}`;
                       const bookmarked = isBookmarked(origMod, li);