.float-tool {
  position: fixed;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  z-index: 10;
}

.float-tool > div {
  width: 56px;
  height: 56px;
  background: rgba(92, 172, 247, 0.5);
  background-size: 40px;
  background-repeat: no-repeat;
  background-position: center;
}

.float-tool > div + div {
  margin-top: 3px;
}

.float-tool > div.wechat {
  background-image: url('./icon-wechat.png');
  position: relative;
}

.float-tool > div.wechat img {
  position: absolute;
  left: 0;
  width: 0;
  transform: translate(-100%, -30%) scale(0.5);
  opacity: 0;
  transition: all 0.3s ease-in-out;
}

.float-tool > div.wechat:hover img {
  width: 200px;
  transform: translate(-100%, -30%) scale(1);
  opacity: 1;
}

.float-tool > div.message {
  background-image: url('./icon-online-message.png');
  background-size: 32px;
}

/* 移动端 */
#app.mobile .float-tool {
  display: none;
}