.touches[0].clientY - touchStartY);
      const deltaX = Math.abs(e.touches[0].clientX - touchStartX);
      
      if (deltaY > 10) {
        document.getElementById('status').textContent = '垂直滚动检测 ✅';
      } else if (deltaX > 10) {
        document.getElementById('status').textContent = '水平滑动检测 ↔️';
      }
    }, { passive: true });
  </script>
</body>
</html>