--- lbbs/src/article_view_log.c	2025/10/15 03:10:47	1.14
+++ lbbs/src/article_view_log.c	2025/10/24 02:07:01	1.15
@@ -278,7 +278,7 @@ int article_view_log_is_viewed(int32_t a
 			mid = (left + right) / 2;
 			if (aid < (i == 0 ? p_view_log->aid_base[mid] : p_view_log->aid_inc[mid]))
 			{
-				right = mid;
+				right = mid - 1;
 			}
 			else if (aid > (i == 0 ? p_view_log->aid_base[mid] : p_view_log->aid_inc[mid]))
 			{
@@ -327,7 +327,7 @@ int article_view_log_set_viewed(int32_t
 			mid = (left + right) / 2;
 			if (aid < (i == 0 ? p_view_log->aid_base[mid] : p_view_log->aid_inc[mid]))
 			{
-				right = mid;
+				right = mid - 1;
 			}
 			else if (aid > (i == 0 ? p_view_log->aid_base[mid] : p_view_log->aid_inc[mid]))
 			{