.banner{
  position: relative;
  width: 100%;
  height: 100vh;
  background: url(../img/bg1.jpg) no-repeat center center;
  /* 图片宽不超过2600px(超出可能会卡顿) 保持 16 : 9 */
  background-size: cover;
  background-attachment: fixed;
  /* background-position: center center; */
}
.banner-mask{
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: hsla(0, 0%, 0%, 0.3);
  z-index: 1;
}
.said{
  position: absolute;
  top: 50%;
  left: 50%;
  color: #fff;
  transform: translateX(-50%);
}
.said .text{
  font-size: 120%;
  font-weight: bold;
}
.said .from{
  font-size: 90%;
  margin-top:10px;
}
/* 导航 */
.topbar{
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  justify-content: space-between;
  width: 100%;
  height: 50px;
  z-index: 9;
  backdrop-filter: blur(5px);
  transition: .3s;
}
.topbar.active{
  background-color: rgba(0,0,0,.4);
}
.topbar-nav{
  display: flex;
  justify-content: space-between;
  line-height: 50px;
  margin-left: 5%;
  font-size: 16px;
}
.topbar-nav .logo{
  display: block;
  width: 50px;
  height: 50px;
  background: url(../img/logo.png) no-repeat center;
  background-size: 30px 30px;
}
.topbar-item{
  width: fit-content;
  height: 100%;
  margin: 0 15px;
  text-align: center;
}
.topbar-item a{
  display: block;
  color: #fff;
}
.topbar-item .line{
  display: block;
  width: 0;
  height: 2px;
  margin: -10px auto 0;
  background-color: #fff;
  transition: .3s;
}
.topbar-item:hover .line{
  width: 100%;
}
 /* times */
.times{
  display: flex;
  width: fit-content;
  align-items: center;
  height: 80px;
  line-height: 80px;
  margin: 30px auto 0;
  padding: 3px 20px;
  border-radius: 10px;
  border: 3px solid #5D5D5D;
  background-color: rgba(36, 36, 36, .4);
  text-align: center;
  font-size: 26px;
  font-weight: bold;
  color: #fff;
  user-select: none;
}
.countdown{
  width: fit-content;
  height:fit-content;
  /* margin: 0 30px; */
  padding: 5px;
  font-size: 20px;
  line-height: 30px;
  border-radius: 6px;
  background-color: rgba(36, 36, 36, .4);
 }
.hour,
.minutes,
.seconds{
  height: 100%;
  width: 50px;
  background-color: hsl(240, 2%, 10%, .4);
  border-radius: 6px;
}
.colon{
  display: block;
  width: 10px;
  margin: 0 5px;
}

/* 内容区域 */
.main{
  width: 88%;
  height: fit-content;
  font-size: 18px;
  margin: 0 auto;
  padding: 30px 0;
}
.list{
  width: 100%;
  height: fit-content;
  margin-bottom: 30px;
  border-radius: 10px;
  background-color: #fff;
  user-select: none;
}
.list-title{
  height: fit-content;
  margin: 0 30px;
  padding-top: 20px;
  border-bottom: 1px solid #ececec;
}
.list-title h5{
  line-height: 22px;
  font-size: 18px;
  font-weight: normal;
}
.list-content{
  display: flex;
  flex: auto;
  flex-wrap: wrap;
  width: 100%;
  height: fit-content;
  padding-bottom: 20px;
}
.list-item{
  position: relative;
  width: 22%;
  height: 70px;
  margin: 1.4% 0 0 2.3%;
  border: 1px solid #ececec;
  border-radius: 10px;
  transition: .3s;
}
.list-item:hover{
  transform: translateY(-5px);
  box-shadow: 0 20px 16px -16px rgb(174 174 174 / 30%);
}
.list-item a{
  display: block;
  width: 100%;
  height: 100%;
  color: #000;
}
.list-item .icon{
  position: absolute;
  top: 0;
  left: 0;
  width: 70px;
  height: 70px;
  background-repeat: no-repeat;
  background-position: center center;
  background-size: 30px 30px;
}
.list-item .title{
  font-size: 14px;
  margin: 12px 5px 5px;
  text-indent: 73px;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}
.list-item .desc{
  margin: 0 5px;
  font-size: 12px;
  color: #a1a1a1;
  text-indent: 73px;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}
/* go-top */
.go-top{
  position: fixed;
  bottom: 25%;
  right: 1%;
  width: 30px;
  height: 85px;
  line-height: 30px;
  writing-mode: vertical-rl; /* 竖 列显示*/
  font-size: 16px;
  text-align: center;
  color: #ccc;
  background-color: hsla(0, 0%, 0%, 0.6);
  border-radius: 10px;
  user-select: none;
  cursor: pointer;
  transform: translateX(80px);
  transition: .3s;
}
.go-top:hover{
  color: #fff;
  background-color: hsla(0, 0%, 0%, 1);
}
/* foot 底部 */
.footer{
  width: 100%;
  height: 25vh;
  background: url(../img/bg1.jpg) no-repeat;
  background-position: center 60%;
}
.foot-mask{
  width: 100%;
  height: 100%;
  background-color: hsla(0, 0%, 0%, 0.6);
}
.foot-info{
  position: relative;
  width: 88%;
  margin: 0 auto;
  border-radius:10px;
}
.links{
  height: 30px;
  width: fit-content;
  padding: 10px 0 0 10px;
  color: #fff;
}





/* 动态 */
.logo {
	-webkit-animation: bounce-top 0.9s both;
	        animation: bounce-top 0.9s both;
}

 @-webkit-keyframes bounce-top {
  0% {
    -webkit-transform: translateY(-45px);
            transform: translateY(-45px);
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
    opacity: 1;
  }
  24% {
    opacity: 1;
  }
  40% {
    -webkit-transform: translateY(-24px);
            transform: translateY(-24px);
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
  65% {
    -webkit-transform: translateY(-12px);
            transform: translateY(-12px);
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
  82% {
    -webkit-transform: translateY(-6px);
            transform: translateY(-6px);
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
  93% {
    -webkit-transform: translateY(-4px);
            transform: translateY(-4px);
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
  25%,
  55%,
  75%,
  87% {
    -webkit-transform: translateY(0px);
            transform: translateY(0px);
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
  }
  100% {
    -webkit-transform: translateY(0px);
            transform: translateY(0px);
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    opacity: 1;
  }
}
@keyframes bounce-top {
  0% {
    -webkit-transform: translateY(-45px);
            transform: translateY(-45px);
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
    opacity: 1;
  }
  24% {
    opacity: 1;
  }
  40% {
    -webkit-transform: translateY(-24px);
            transform: translateY(-24px);
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
  65% {
    -webkit-transform: translateY(-12px);
            transform: translateY(-12px);
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
  82% {
    -webkit-transform: translateY(-6px);
            transform: translateY(-6px);
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
  93% {
    -webkit-transform: translateY(-4px);
            transform: translateY(-4px);
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
  25%,
  55%,
  75%,
  87% {
    -webkit-transform: translateY(0px);
            transform: translateY(0px);
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
  }
  100% {
    -webkit-transform: translateY(0px);
            transform: translateY(0px);
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    opacity: 1;
  }
}