.email-container {
  position: relative;
  display: inline-block;
}

.email-address {
  position: absolute;
  top: 100%; /* 将邮箱地址定位在触发元素正下方 */
  left: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease;
  background-color: #333;
  padding: 5px 10px;
  border-radius: 3px;
  white-space: nowrap;
  z-index: 10;}

.email-container:hover .email-address {
  opacity: 1;
  visibility: visible;
}