.index-card {
  background: transparent;
  backdrop-filter: none;
  border-radius: 18px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  transition: background 0.3s, backdrop-filter 0.3s, box-shadow 0.3s, transform 0.3s;
  position: relative;
  overflow: hidden;
}



.index-card:hover {
  background: rgba(255,255,255,0.45);
  backdrop-filter: blur(16px) saturate(180%);
  box-shadow: 0 8px 32px rgba(0,0,0,0.16);
  transform: translateY(-8px) scale(1.03);
}








/* 鼠标特效相关代码已删除 */


/* 已去除拖痕动画，仅保留主ripple跟随鼠标 */