diff --git a/rust/crates/mnote-web/src/routes/web_shell.rs b/rust/crates/mnote-web/src/routes/web_shell.rs
index a61d868e..f82c73ed 100644
--- a/rust/crates/mnote-web/src/routes/web_shell.rs
+++ b/rust/crates/mnote-web/src/routes/web_shell.rs
@@ -3044,6 +3044,17 @@ pub(crate) fn render_editor_island_adapter_script() -> &'static str {
     });
   };
 
+  const bindMainEditorPageTab = () => {
+    const nodes = resourceTabHostNodes();
+    if (!(nodes.pageTab instanceof HTMLElement)) return;
+    if (nodes.pageTab.getAttribute('data-mnote-page-tab-bound') === 'true') return;
+    nodes.pageTab.setAttribute('data-mnote-page-tab-bound', 'true');
+    nodes.pageTab.addEventListener('click', (event) => {
+      event.preventDefault();
+      activateMainEditorTab('');
+    });
+  };
+
   const closeResourceTab = (objectIdentity) => {
     const key = String(objectIdentity || '').trim();
     const entry = resourceTabRegistry.get(key);
@@ -3206,6 +3217,7 @@ pub(crate) fn render_editor_island_adapter_script() -> &'static str {
   };
 
   const openResourceInActiveTab = async (input = {}) => {
+    bindMainEditorPageTab();
     const objectIdentity = String(input.objectIdentity || input.assetId || input.href || '').trim();
     if (!objectIdentity) return false;
     const existing = resourceTabRegistry.get(objectIdentity);
@@ -3317,6 +3329,8 @@ pub(crate) fn render_editor_island_adapter_script() -> &'static str {
     },
   };
 
+  bindMainEditorPageTab();
+
   window.addEventListener('pagehide', () => {
     Array.from(documentSessionRegistry.values()).forEach((session) => {
       sessionViews(session).forEach((view) => {
diff --git a/rust/crates/mnote-web/src/ssr/pages/layout.rs b/rust/crates/mnote-web/src/ssr/pages/layout.rs
index 04acbef0..b3f81ba0 100644
--- a/rust/crates/mnote-web/src/ssr/pages/layout.rs
+++ b/rust/crates/mnote-web/src/ssr/pages/layout.rs
@@ -7486,17 +7486,16 @@ const SIDEBAR_TREE_JS: &str = r##"
     openEditorAttachmentLink(editorAttachmentLink);
   }
 
-  window.addEventListener('mousedown', interceptEditorAttachmentLink, true);
-  window.addEventListener('click', interceptEditorAttachmentLink, true);
-
-  document.addEventListener('click', function(e) {
-    var editorAttachmentLink = closestAction(e.target, '.editor-surface .ProseMirror a[data-mnote-attachment-link="true"], .editor-surface .ProseMirror a.mnote-uploaded-attachment-row');
+  function suppressEditorAttachmentLinkDefault(event) {
+    var editorAttachmentLink = closestAction(event.target, '.editor-surface .ProseMirror a[data-mnote-attachment-link="true"], .editor-surface .ProseMirror a.mnote-uploaded-attachment-row');
     if (!(editorAttachmentLink instanceof HTMLAnchorElement)) return;
-    e.preventDefault();
-    e.stopPropagation();
-    if (typeof e.stopImmediatePropagation === 'function') e.stopImmediatePropagation();
-    openEditorAttachmentLink(editorAttachmentLink);
-  }, true);
+    event.preventDefault();
+    event.stopPropagation();
+    if (typeof event.stopImmediatePropagation === 'function') event.stopImmediatePropagation();
+  }
+
+  window.addEventListener('mousedown', suppressEditorAttachmentLinkDefault, true);
+  window.addEventListener('click', interceptEditorAttachmentLink, true);
 
   document.addEventListener('mouseover', function(event) {
     var link = closestAction(event.target, '.editor-surface .ProseMirror a[data-mnote-attachment-link="true"], .editor-surface .ProseMirror a.mnote-uploaded-attachment-row');
diff --git a/scripts/task459-local-markdown-attachment-tab-smoke.js b/scripts/task459-local-markdown-attachment-tab-smoke.js
index 45066445..247ba32d 100644
--- a/scripts/task459-local-markdown-attachment-tab-smoke.js
+++ b/scripts/task459-local-markdown-attachment-tab-smoke.js
@@ -117,10 +117,31 @@ async function main() {
     const resourceText = await resourceEditor.innerText({ timeout: UI_TIMEOUT_MS });
     assert(resourceText.includes("资源正文"), `MD 附件应在资源 tab 中用 tiptap 打开：${resourceText}`);
     assert.equal(popups.length, 0, `点击 MD 附件不应打开浏览器新窗口，实际 popup=${popups.length}`);
+
+    const pageTab = page.locator('[data-mnote-main-tab="page"]').first();
+    await pageTab.click({ timeout: UI_TIMEOUT_MS });
+    await page.waitForFunction(() => {
+      const pagePanel = document.querySelector("[data-mnote-page-tab-panel]");
+      const resourceHost = document.querySelector("[data-mnote-resource-tab-host]");
+      const pageTab = document.querySelector('[data-mnote-main-tab="page"]');
+      return pagePanel && !pagePanel.hidden
+        && resourceHost && resourceHost.hidden
+        && pageTab && pageTab.classList.contains("is-active");
+    }, null, { timeout: UI_TIMEOUT_MS });
+
     const pageText = await page.locator('.document-pane[data-pane-role="primary"] .editor-surface .ProseMirror').first().innerText({
       timeout: UI_TIMEOUT_MS,
     });
     assert(pageText.includes("resource-note.md"), "主页面正文应保持原附件链接");
+
+    const resourceTab = page.locator('.mnote-main-tab[data-mnote-tab-kind="markdown"]').first();
+    await resourceTab.click({ timeout: UI_TIMEOUT_MS });
+    await page.locator('.mnote-main-tab.is-active[data-mnote-tab-kind="markdown"]').waitFor({
+      state: "visible",
+      timeout: UI_TIMEOUT_MS,
+    });
+    await resourceEditor.waitFor({ state: "visible", timeout: UI_TIMEOUT_MS });
+
     console.log(JSON.stringify({ ok: true, root, documentId, popups: popups.length }, null, 2));
   } finally {
     await context.close().catch(() => undefined);