From a3192dc3e058406046d42601e5a9f76da12f49c6 Mon Sep 17 00:00:00 2001
From: Luffy <52o@qq52o.cn>
Date: Wed, 26 Nov 2025 11:44:10 +0800
Subject: [PATCH] fix: adjust intersection observer threshold for sticky class
 toggle

---
 src/core/event/index.js | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/src/core/event/index.js b/src/core/event/index.js
index 12fa3c78c..5c3def7ec 100644
--- a/src/core/event/index.js
+++ b/src/core/event/index.js
@@ -57,12 +57,17 @@ export function Events(Base) {
         return;
       }
 
-      const observer = new IntersectionObserver(entries => {
-        const isIntersecting = entries[0].isIntersecting;
-        const op = isIntersecting ? 'remove' : 'add';
+      const observer = new IntersectionObserver(
+        entries => {
+          const isIntersecting = entries[0].isIntersecting;
+          const op = isIntersecting ? 'remove' : 'add';
 
-        dom.toggleClass(dom.body, op, 'sticky');
-      });
+          dom.toggleClass(dom.body, op, 'sticky');
+        },
+        {
+          threshold: 0.01,
+        },
+      );
 
       observer.observe(coverElm);
     }