/* Font Awesome 图标已移除，请使用本地图标或 SVG 替代 */
html,
body {
  height: 100%;
  position: relative;
  width: 100%;
}
body {
  background: -webkit-radial-gradient(top ellipse, yellowgreen 0%, #5c7b1e 100%);
  background: radial-gradient(ellipse at top, yellowgreen 0%, #5c7b1e 100%);
  background-repeat: no-repeat;
}
#wrapper {
  margin: auto;
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  height: 100px;
}
#wrapper #share {
  background: rgba(0, 0, 0, 0.5);
  position: relative;
  margin: 0 auto;
  width: 620px;
}
#wrapper #share span {
  width: 100px;
  height: 100px;
  float: left;
  line-height: 100px;
  text-align: center;
  color: white;
}
.container {
  position: relative;
  display: inline-block;
  width: 100px;
  height: 100px;
  line-height: 100px;
  text-align: center;
  margin: 0 auto;
}
.container .circle {
  fill: none;
  stroke: #ffffff;
  stroke-width: 5px;
  stroke-dasharray: 40;
  -webkit-transition: all 0.2s ease-in-out;
  transition: all 0.2s ease-in-out;
  -webkit-animation: outWaveOut 1s cubic-bezier(0.42, 0, 0.58, 1) forwards;
          animation: outWaveOut 1s cubic-bezier(0.42, 0, 0.58, 1) forwards;
}
.container .social {
  color: white;
  font-size: 1.8em;
  position: absolute;
  top: 0px;
  left: 0px;
  width: 100%;
  height: 100%;
  -webkit-transition: all 0.5s ease-in-out;
  transition: all 0.5s ease-in-out;
}
.container:hover {
  cursor: pointer;
}
.twitter:hover .circle {
  fill: #ffffff;
  fill-opacity: 1;
  -webkit-animation: outWaveIn 1s cubic-bezier(0.42, 0, 0.58, 1) forwards, colorTwitter 1s linear forwards;
          animation: outWaveIn 1s cubic-bezier(0.42, 0, 0.58, 1) forwards, colorTwitter 1s linear forwards;
}
.twitter:hover .social {
  color: #3aaae1;
}
.facebook:hover .circle {
  fill: #ffffff;
  fill-opacity: 1;
  -webkit-animation: outWaveIn 1s cubic-bezier(0.42, 0, 0.58, 1) forwards, colorFacebook 1s linear forwards;
          animation: outWaveIn 1s cubic-bezier(0.42, 0, 0.58, 1) forwards, colorFacebook 1s linear forwards;
}
.facebook:hover .social {
  color: #3b5998;
}
.google:hover .circle {
  fill: #ffffff;
  fill-opacity: 1;
  -webkit-animation: outWaveIn 1s cubic-bezier(0.42, 0, 0.58, 1) forwards, colorGoogle 1s linear forwards;
          animation: outWaveIn 1s cubic-bezier(0.42, 0, 0.58, 1) forwards, colorGoogle 1s linear forwards;
}
.google:hover .social {
  color: #dd4b39;
}
.pinterest:hover .circle {
  fill: #ffffff;
  fill-opacity: 1;
  -webkit-animation: outWaveIn 1s cubic-bezier(0.42, 0, 0.58, 1) forwards, colorPinterest 1s linear forwards;
          animation: outWaveIn 1s cubic-bezier(0.42, 0, 0.58, 1) forwards, colorPinterest 1s linear forwards;
}
.pinterest:hover .social {
  color: #cb2027;
}
.linkedin:hover .circle {
  fill: #ffffff;
  fill-opacity: 1;
  -webkit-animation: outWaveIn 1s cubic-bezier(0.42, 0, 0.58, 1) forwards, colorLinkedin 1s linear forwards;
          animation: outWaveIn 1s cubic-bezier(0.42, 0, 0.58, 1) forwards, colorLinkedin 1s linear forwards;
}
.linkedin:hover .social {
  color: #007bb6;
}
@-webkit-keyframes colorTwitter {
  from {
    stroke: #ffffff;
  }
  to {
    stroke: #3aaae1;
  }
}
@keyframes colorTwitter {
  from {
    stroke: #ffffff;
  }
  to {
    stroke: #3aaae1;
  }
}
@-webkit-keyframes colorFacebook {
  from {
    stroke: #ffffff;
  }
  to {
    stroke: #3b5998;
  }
}
@keyframes colorFacebook {
  from {
    stroke: #ffffff;
  }
  to {
    stroke: #3b5998;
  }
}
@-webkit-keyframes colorGoogle {
  from {
    stroke: #ffffff;
  }
  to {
    stroke: #dd4b39;
  }
}
@keyframes colorGoogle {
  from {
    stroke: #ffffff;
  }
  to {
    stroke: #dd4b39;
  }
}
@-webkit-keyframes colorPinterest {
  from {
    stroke: #ffffff;
  }
  to {
    stroke: #cb2027;
  }
}
@keyframes colorPinterest {
  from {
    stroke: #ffffff;
  }
  to {
    stroke: #cb2027;
  }
}
@-webkit-keyframes colorLinkedin {
  from {
    stroke: #ffffff;
  }
  to {
    stroke: #007bb6;
  }
}
@keyframes colorLinkedin {
  from {
    stroke: #ffffff;
  }
  to {
    stroke: #007bb6;
  }
}
@-webkit-keyframes outWaveIn {
  to {
    stroke-width: 10px;
    stroke-dasharray: 400;
  }
}
@keyframes outWaveIn {
  to {
    stroke-width: 10px;
    stroke-dasharray: 400;
  }
}
@-webkit-keyframes outWaveOut {
  from {
    stroke-width: 10px;
    stroke-dasharray: 400;
  }
  to {
    stroke: #ffffff;
    stroke-width: 5px;
    stroke-dasharray: 40;
  }
}
@keyframes outWaveOut {
  from {
    stroke-width: 10px;
    stroke-dasharray: 400;
  }
  to {
    stroke: #ffffff;
    stroke-width: 5px;
    stroke-dasharray: 40;
  }
}