body {
  height: 100vh;
  background: url("../img/pc-bg.jpg") no-repeat center top;
  background-size: 100% 100%;
}

.page-width {
  position: absolute;
  width: 1200px;
  left: 50%;
  margin-left: -600px
}

.main-area {
  top: 50%;
  margin-top: -380px;
}

.theme-logo {
  transform: scale(1);
  animation: scale .5s .5s ease-in-out both;
  height: 70%;
  margin-left: 80px;
}
.ztlogo{
  height: 56px;
  width: auto;
  transform: scale(1);
  animation: scale 1s .5s ease-in-out both;
  position: fixed;
  left: 50%;
  margin-left: -430px;
  bottom: 30px;
}
.ztlogo2{
  position: fixed;
  left: 50%;
  margin-left: 450px;
  top: 70px;
}

.news-list {
  width: 780px;
  padding-top: 150px;
  display: flex;
  flex-flow: row wrap;
  justify-content: center;
  height: 380px;
}

.news-list .news-item {
  float: left;
  width: 180px;
  height: 68px;
  text-align: center;
  line-height: 68px;
  background-color:  #ce192c;
  margin-right: 35px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.12), 0 0 6px rgba(0, 0, 0, 0.04);
  transition: box-shadow .3s;
  border-radius: 15px;
}

.news-list .news-item:nth-child(3n) ,
.news-list .news-item:last-child {
  margin-right: 0
}


.news-list .news-item>a {
  display: block;
  color: #fff;
  font-size: 30px;
  font-weight: bold;
  font-family: "宋体";

}

.news-list .news-item:active {
  box-shadow: none
}

.page-footer {
  bottom: 8%;
  padding-left: 30px;
  height: 50px;
  line-height: 50px
}

.page-footer .relate-site {
  display: inline-block;
  width: 128px;
  height: 100%;
  margin-right: 24px;
  background: url("../images/foot-site.png") no-repeat -3px center
}

.page-footer .relate-site:nth-child(2) {
  width: 130px;
  background-position: -152px center
}

.page-footer .relate-site:nth-child(3) {
  width: 92px;
  background-position: -304px center
}

.page-footer .relate-site:nth-child(4) {
  width: 85px;
  background-position: -415px center
}

@keyframes scale {
  from {
    transform: scale(0)
  }

  to {
    transform: scale(1)
  }
}