optimize cleanup search query shop api extends part 2

public/assets/js/base.js

@@ -179,6 +179,59 @@ document.addEventListener('DOMContentLoaded', () => {
         cleanupEmptyBlocks(container);
     }
 
+    function hasVisibleContentAfterNode(container, markerNode) {
+        const walker = document.createTreeWalker(
+            container,
+            NodeFilter.SHOW_ELEMENT | NodeFilter.SHOW_TEXT,
+            null
+        );
+
+        let afterMarker = false;
+
+        while (walker.nextNode()) {
+            const node = walker.currentNode;
+
+            if (node === markerNode) {
+                afterMarker = true;
+                continue;
+            }
+
+            if (!afterMarker) {
+                continue;
+            }
+
+            if (node.nodeType === Node.TEXT_NODE) {
+                if (node.parentElement?.closest('.think')) {
+                    continue;
+                }
+
+                if ((node.textContent || '').trim() !== '') {
+                    return true;
+                }
+
+                continue;
+            }
+
+            if (node.nodeType !== Node.ELEMENT_NODE) {
+                continue;
+            }
+
+            if (node.classList?.contains('think') || node.closest?.('.think')) {
+                continue;
+            }
+
+            if (node.tagName === 'BR') {
+                continue;
+            }
+
+            if ((node.textContent || '').trim() !== '' || hasMeaningfulChildContent(node)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
     function cleanupThinkSpans(container) {
         if (!container) {
             return;
@@ -191,12 +244,14 @@ document.addEventListener('DOMContentLoaded', () => {
             return;
         }
 
-        if (hasNonThinkContent(container)) {
-            removeThinkSpansOnly(container);
+        const lastThink = thinkSpans[thinkSpans.length - 1];
+
+        if (!hasVisibleContentAfterNode(container, lastThink)) {
+            keepOnlyLastThink(container);
             return;
         }
 
-        keepOnlyLastThink(container);
+        removeThinkSpansOnly(container);
     }
 
     function renderBubbleContent(bubble, raw) {