diff --git a/src/components/molecules/BlogSearch.astro b/src/components/molecules/BlogSearch.astro
index d38b1e5..0aad4ac 100644
--- a/src/components/molecules/BlogSearch.astro
+++ b/src/components/molecules/BlogSearch.astro
@@ -5,7 +5,7 @@
 // Filter script is added in Task 5; this file ships markup + styles only.
 ---
 
-<div class="bsearch">
+<div class="bsearch" role="search">
   <input
     type="search"
     class="binput"
diff --git a/src/pages/blog/index.astro b/src/pages/blog/index.astro
index 5f2a80d..290243e 100644
--- a/src/pages/blog/index.astro
+++ b/src/pages/blog/index.astro
@@ -43,7 +43,7 @@ function buildSearchText(post: (typeof posts)[number]): string {
   return parts
     .join(" ")
     .toLowerCase()
-    .replace(/[#*_>`\[\]()]/g, " ")
+    .replace(/[<>#*_`\[\]()]/g, " ")
     .replace(/\s+/g, " ")
     .trim();
 }
@@ -265,7 +265,9 @@ for (const post of posts) {
     .feature .img { order: -1; aspect-ratio: 16 / 9; }
   }
 
-  .is-hidden { display: none !important; }
+  /* :global so the runtime-toggled class reaches PostRow and YearHead roots,
+     which carry their own component scope hashes — not this page's. */
+  :global(.is-hidden) { display: none !important; }
 
   .empty {
     font-family: var(--font-mono);