html.modal-active,
body.modal-active {
  overflow: hidden;
}
.modal-background {
  width: 100%;
  height: 100%;
  position: fixed;
  background-color: rgb(0, 0, 0, 0.2);
  overflow: hidden;
  top: 0px;
  left: 0px;
  z-index: 999999;
  display: block;
}
.topic-box {
    position: fixed;
    top: -37px;
    left: 50%;
    /* margin-left: -35%; */
    width: 1320px;
    z-index: 99999999;
    transform: translateX(-50%) scale(1);
    opacity: 1;
}
.topic-box img {
  width: 100%;
}
.topic-box span {
  display: inline-block;
  position: absolute;
  top: 50px;
  right: 72px;
  width: 120px;
  height: 40px;
  background: url(../images/time-bg.png) no-repeat;
  background-size: 100% 100%;
  text-align: center;
  line-height: 40px;
  font-size: 17px;
  color: #fff;
  cursor: pointer;
  z-index: 999999999;
}
.modal-background.out {
  transform: translateZ(0);
  display:none;
  /* animation: unfoldOut 0.6s 0.4s cubic-bezier(0.165, 0.84, 0.44, 1) forwards; */
}
@keyframes unfoldOut {
  0% {
    transform: scaleY(1) scaleX(1);
  }
  50% {
    transform: scaleY(0.005) scaleX(1);
  }
  100% {
    transform: scaleY(0.005) scaleX(0);
  }
}
/* .modal-background.out::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: -1;
  animation: unfoldOut 0.8s 0.6s cubic-bezier(0.165, 0.84, 0.44, 1) infinite forwards;
} */
div.topic-box.out {
/*   transform: translateZ(0);
 */  animation: zoomOut 0.6s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
}
@keyframes zoomOut {
  0% {
    transform:translateX(-50%) scale(1);
    opacity: 1;
  }
  100% {
    transform:translateX(-50%) scale(0);
  }
}
/* @keyframes unfoldIn {
  0% {
    transform: scaleY(0.005) scaleX(0);
  }
  50% {
    transform: scaleY(0.005) scaleX(1);
  }
  100% {
    transform: scaleY(1) scaleX(1);
  }
}

@keyframes zoomIn {
  0% {
    transform: scale(0);
  }
  100% {
    transform: scale(1);
  }
} */
.banner1 {
  width: 100%;
}