body {
  height: 100%;
  background-color: #f9fafd;
  background-attachment: fixed;
}
nav {
  position: fixed;
  width: 100%;
  height: 60px;
  z-index: 888;
  line-height: 59px;
  user-select: none;
  -webkit-user-select: none;
  background-color: #fff;
  border-bottom: 1px solid #f5f5f5;
  box-shadow: 0 10px 26px -16px rgba(0, 0, 0, 0.1);
}
nav .nav-core {
  width: 1200px;
  height: 100%;
  margin: 0 auto;
  position: relative;
}
nav .nav-core .nav-left,
nav .nav-core .nav-right {
  position: absolute;
  display: inline-block;
}
nav .nav-core .nav-left {
  left: 1%;
  font-size: 24px;
  font-weight: lighter;
  letter-spacing: 1px;
  -ms-filter: "progid:DXImageTransform.Microsoft.Shadow(Strength=4, Direction=72, Color=#00000030)";
  /*IE 8*/
  text-shadow: 0 0 4px #00000030;
  /* FF3.5+, Opera 9+, Saf1+, Chrome, IE10 */
}
nav .nav-core .nav-left > span {
  display: inline-block;
  font-size: 16px;
}
nav .nav-core .nav-left > span i {
  display: inline-block;
  letter-spacing: 2px;
}
nav .nav-core .nav-left > span i:nth-of-type(1) {
  animation: tagBig .4s linear .1s;
}
nav .nav-core .nav-left > span i:nth-of-type(2) {
  animation: tagBig .4s linear .3s;
}
nav .nav-core .nav-left > span i:nth-of-type(3) {
  animation: tagBig .4s linear .6s;
}
nav .nav-core .nav-left > span i:nth-of-type(4) {
  animation: tagBig .4s linear .9s;
}
nav .nav-core .nav-left > span i:nth-of-type(5) {
  animation: tagBig .4s linear 1.2s;
}
nav .nav-core .nav-left > span i:nth-of-type(6) {
  animation: tagBig .4s linear 1.5s;
}
nav .nav-core .nav-right {
  right: 1%;
  font-weight: initial;
  cursor: pointer;
  color: #666;
}
nav .nav-core .nav-right:hover {
  color: #000;
}
.popup {
  display: none;
  position: fixed;
  z-index: 999;
  width: 100%;
  height: 100%;
  color: #fff;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.6);
}
.popup .popup-item {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
  margin-top: 10%;
  padding: 40px 50px;
  padding-bottom: 80px;
  background: rgba(0, 0, 0, 0.6);
}
.popup .popup-item > p:nth-of-type(1) {
  font-size: 21px;
  letter-spacing: 3px;
  text-align: center;
  padding-bottom: 30px;
}
.popup .popup-item > p:nth-of-type(2) {
  color: #f5f5f5;
  letter-spacing: 1px;
  text-indent: 2em;
  line-height: 30px;
}
.popup .popup-item > p:nth-of-type(2) > a {
  color: #f5f5f5;
  border-bottom: 1px dashed #ccc;
}
.popup .popup-item .item-close {
  user-select: none;
  position: absolute;
  top: 0%;
  right: 0%;
  width: 36px;
  height: 36px;
  text-align: center;
  line-height: 34px;
  background: transparent;
  transition: all .2s ease;
}
.popup .popup-item .item-close:hover {
  background: #717171;
}
#app {
  box-sizing: border-box;
  min-width: 320px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 30px;
  padding-top: 80px;
  padding-left: 14px;
}
.list {
  width: 40%;
  margin: 0 auto;
}
.list .className {
  margin-top: 30px;
  line-height: 44px;
}
.list .className:nth-of-type(1) {
  margin-top: 0;
}
.list .className > h2 {
  color: #1a1a1a;
}
.list .className > span {
  margin-right: 16px;
  color: #1a1a1a;
}
.copyright {
  position: relative;
  text-align: center;
  bottom: 10px;
  cursor: pointer;
}
.copyright > a,
.copyright > p{
  color: #bbb;
  font-size: smaller;
}
.copyright > p {
  color: #d9d9d9;
}