diff --git a/assets/css/custom.css b/assets/css/custom.css
index 27c05425a..2a55ff8f6 100644
--- a/assets/css/custom.css
+++ b/assets/css/custom.css
@@ -271,6 +271,10 @@ html.light {
       }
     }
   }
+  nav.hextra-toc li:has(~ li a.hextra-toc-active) > a {
+    color: var(--hx-color-gray-400);
+    opacity: 0.85;
+  }
 }
 
 html.dark {
@@ -293,6 +297,10 @@ html.dark {
       }
     }
   }
+  nav.hextra-toc li:has(~ li a.hextra-toc-active) > a {
+    color: var(--hx-color-gray-500);
+    opacity: 0.9;
+  }
 }
 
 .content :where(a):not(:where([class~=not-prose],