.home{
  background-image: url(../images/bg.png);
  background-size: cover;
  background-position: center center;
  text-align: center;
  background-repeat: no-repeat;
}

.home .tel{
  font-size: 32px;
  color: white;
  height: 45px;
  line-height: 45px;
  margin-top: 16px;
  letter-spacing: 3px;
  text-indent: 3px;
}
.home .learn-more{
  border: 1px solid white;
  width: 175px;
  height: 44px;
  color: white;
  line-height: 44px;
  margin: auto;
  cursor: pointer;
  margin-top: 12px;
  font-size: 20px;
}
.home .slide-tip-wrapper{
  position: absolute;
  bottom: 40px;
  width: 40px;
  left: calc(50% - 20px);
}
.home .slide-tip{
  height: 32px;
  overflow: hidden;
}
.home .slide-tip .slide-tip-vline{
  margin: auto;
  background-color: white;
  width: 2px;
  height: 32px;
  animation:stretch_tip 2s;
  -moz-animation:stretch_tip 2s; /* Firefox */
  -webkit-animation:stretch_tip 2s; /* Safari and Chrome */
  -o-animation:stretch_tip 2s; /* Opera */
  animation-iteration-count:infinite;
  -webkit-animation-iteration-count:infinite; /* Safari 和 Chrome */
}
.home .slide-tip-text{
  color: white;
  font-size: 12px;
  letter-spacing: 3px;
  text-indent: 3px;
  margin-top: 7px;
}

@keyframes stretch_tip
{
from {transform: translateY(0);}
to {transform: translateY(32px);}
}

@-moz-keyframes stretch_tip /* Firefox */
{
from {transform: translateY(0);}
to {transform: translateY(32px);}
}

@-webkit-keyframes stretch_tip /* Safari and Chrome */
{
from {transform: translateY(0);}
to {transform: translateY(32px);}
}

@-o-keyframes stretch_tip /* Opera */
{
from {transform: translateY(0);}
to {transform: translateY(32px);}
}