.ripple-btn {
  -webkit-tap-highlight-color: transparent;
   -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  touch-action: manipulation; /* 移除延迟 */ 
   cursor: pointer;
   position: absolute;
}
.lianyi-btn {
    background-color: #9cc3df;
    height: 40px;
    width: 150px;
    border-radius:7px;
    margin-left: 100px;
    border: none;
    outline: none;
  position: relative;
  overflow: hidden;
  border: none;
  color:#000000;
  border-radius:10px;
  box-shadow:3px 3px 20px -10px;
  margin-top:550px;
  z-index: 3;
     position: absolute;
}
.ripple-btn:hover {
   background: #90bbda;
   transition: all 0.3s;
 }
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4); /* 涟漪颜色*/
  pointer-events: none;
  animation: rippleAnim 0.6s ease-out forwards;
}

@keyframes rippleAnim {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(3.5);
    opacity: 0;
  }
}