diff --git a/static/index.html b/static/index.html
index a614d5bd..a7174151 100644
--- a/static/index.html
+++ b/static/index.html
@@ -2173,6 +2173,13 @@ function _renderVersionsHTML(md) {
 function renderResearch() {
   const el = document.getElementById('tab-research');
   if (!el) return;
+  // 2026-08-18 局部刷新（老莫）：已渲染过骨架则不再整页重建（保留滚动/展开），只刷新数据
+  if (window._researchRendered) {
+    loadStrategyList();
+    loadEvolutionBox();
+    return;
+  }
+  window._researchRendered = true;
   el.innerHTML =
     '<div class="flex gap-2 items-center mb-3">' +
       '<span class="text-sm font-semibold text-slate-300">📋 策略研究</span>' +