diff --git a/h5/css/style.css b/h5/css/style.css
index cfe6977..68e2975 100644
--- a/h5/css/style.css
+++ b/h5/css/style.css
@@ -21,6 +21,8 @@
 
 * { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
 html, body { height: 100%; }
+/* 微信「字体大小」设置会放大网页文字(iOS 经 text-size-adjust);锁定 100% 使与 Safari 一致 */
+html { -webkit-text-size-adjust: 100% !important; text-size-adjust: 100% !important; }
 body {
   font-family: var(--font);
   color: var(--ink);
diff --git a/h5/js/app.js b/h5/js/app.js
index a4fd998..2acdc6f 100644
--- a/h5/js/app.js
+++ b/h5/js/app.js
@@ -1395,6 +1395,18 @@
     if (e.persisted) handleCamVisible(); // bfcache 恢复(不一定伴随 visibilitychange)
   });
 
+  /* ─── 微信安卓端:字体大小设置不走 text-size-adjust,需经 JSBridge 重置为标准并屏蔽后续调整 ─── */
+  (function lockWeixinFontSize() {
+    function lock() {
+      var B = window.WeixinJSBridge;
+      if (!B) return;
+      B.invoke('setFontSizeCallback', { fontSize: 0 });
+      B.on('menu:setfont', function () { B.invoke('setFontSizeCallback', { fontSize: 0 }); });
+    }
+    if (window.WeixinJSBridge) lock();
+    else document.addEventListener('WeixinJSBridgeReady', lock, false);
+  })();
+
   /* ─── 初始化 ─── */
   history.replaceState({ screen: 's-splash' }, ''); // 刷新后从启动页开始,历史栈的屏标记与之对齐
   renderCamStep();