.collapse:not(.show) {
  display: none
}
@keyframes flyInLeft {
  from {
    opacity: 0;
    transform: translateX(-60%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
.flyleft {
  animation: flyInLeft 1s linear;
}
@keyframes flyInRight {
  from {
    opacity: 0;
    transform: translateX(60%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
.flyright {
  animation: flyInRight 1s linear;
}
@keyframes flyIndown {
  from {
    opacity: 0;
    transform: translateY(60%);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.flydown {
  animation: flyIndown 1s linear;
}
.animated-element {
  opacity: 1;
  transition: opacity 1s; /* 设置渐变效果 */
  will-change: opacity; /* 提示浏览器进行优化 */
}
/* 当 .animate-me 类存在时，应用动画 */
.animated-element.animate-me {
  animation: fadeInOut 1s infinite alternate;
}
@keyframes fadeInOut {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
/*语言选择下拉菜单*/
.dropdown {
  position: relative;
  display: inline-block;
}
.dropdown-button {
  cursor: pointer;
}
.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 125px;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
  z-index: 1;
}
.dropdown-content a {
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
}
.dropdown-content a:hover {
  color: #fff;
  background: #000;
}
.dropdown:hover .dropdown-content {
  display: block;
}
/*产品*/
.a8 tr {
  line-height: 45px;
}
.a8 img {
  margin: 0 auto;
}
.play a {
  position: absolute;
  top: 40%;
  left: 40%;
  background-image: url("/static/images/play.png");
  width: 52px;
  height: 52px;
}
.play a:hover {
  background-image: url("/static/images/play1.png");
}
/*弹出窗口*/
.window_bg {
  /* 默认隐藏 */
  display: none;
  /* 固定定位 */
  position: fixed;
  /* 设置层级 */
  z-index: 1;
  /* 背景铺满全屏 */
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.4);
}
/*右下角浮动小图标*/
#chat-icons {
  position: fixed;
  top: 70%;
  right: 0;
  transform: translateY(-50%);
  z-index: 9999999;
  /* Higher z-index to stay on top */
}
.chat-icon {
  position: relative;
  margin-bottom: 0px;
  cursor: pointer;
  background-color: #e60012;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.chat-icon a {
  display: flex;
  align-items: center;
  justify-content: center;
}
.chat-text, .wechat {
  display: none;
  position: absolute;
  top: 50%;
  right: 100%;
  transform: translateY(-50%);
  padding: 5px;
  width: 50px;
  height: 50px;
  border-top-left-radius: 5px;
  border-bottom-left-radius: 5px;
  color: #fff;
  text-align: center;
  font-size: 16px;
  padding-left: 10px;
}
.chat-icon:hover .chat-text {
  display: block;
  background-color: #e60012;
  width: 100px;
  display: flex;
  align-items: center;
  /* 垂直居中 */
  justify-content: center;
  /* 水平居中 */
}
.chat-icon:hover .wechat {
  display: block;
  background-color: #e60012;
  width: 200px;
  height: 200px;
}
#mail {
  background-color: #03738c;
  /* Set Skype's background color */
}
#mail:hover .chat-text {
  background-color: #03738c;
  /* Set Skype's background color */
}
#messenger {
  background-color: #011526;
  /* Set Skype's background color */
}
#messenger:hover .wechat {
  background-color: #011526;
  /* Set wechat's background color */
}
#skype {
  background-color: #a79c93;
  /* Set Skype's background color */
}
#skype:hover .chat-text {
  background-color: #a79c93;
  /* Set Skype's background color */
}