.banner {
  min-width: 1050px;
  height: 682px;
  position: relative;
}
.banner > img {
  width: 100%;
  height: auto;
}
.banner-mask {
  width: 100%;
  height: 45%;
  position: absolute;
  bottom: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, #262626 100%);
  opacity: 0.75;
}
.banner-msg {
  width: 100%;
  position: absolute;
  bottom: 0;
}
.banner-msg-container {
  width: 1050px;
  margin: 0 auto 45px;
  display: flex;
  justify-content: space-between;
}
.banner-msg-container-btn {
  display: flex;
  gap: 20px;
  margin-top: 63px;
}
.banner-msg-container-btn-item {
  display: flex;
  width: 160px;
  height: 48px;
  background: #3B3839;
  box-shadow: 4px 4px 0px 0px rgba(40, 0, 0, 0.24);
  border: 1px solid #FFFFFF;
  color: #FFFFFF;
  padding: 12px 19px 13px 20px;
  cursor: pointer;
}
.banner-msg-container-btn-item > span {
  margin: 0 13px 0 9px;
  height: 22px;
  font-family: MicrosoftYaHei;
  font-size: 15px;
  color: #FFFFFF;
  line-height: 22px;
  text-align: left;
  font-style: normal;
}
.banner-msg-container-btn-item-icon {
  width: 21px;
  height: 23px;
}
.banner-msg-container-btn-item-iconChecked {
  width: 0;
  height: 23px;
  opacity: 0;
}
.banner-msg-container-btn-item-arrow {
  width: 9px;
  height: 15px;
  margin-top: 4px;
}
.banner-msg-container-btn-item-arrowChecked {
  width: 0;
  height: 15px;
  opacity: 0;
  margin-top: 4px;
}
.banner-msg-container-btn-item:hover {
  width: 160px;
  height: 48px;
  background: #FFFFFF;
  box-shadow: 4px 4px 0px 0px rgba(40, 0, 0, 0.3);
}
.banner-msg-container-btn-item:hover .banner-msg-container-btn-item-arrow {
  opacity: 0;
  width: 0;
}
.banner-msg-container-btn-item:hover .banner-msg-container-btn-item-icon {
  opacity: 0;
  width: 0;
}
.banner-msg-container-btn-item:hover .banner-msg-container-btn-item-arrowChecked {
  opacity: 1;
  width: 9px;
}
.banner-msg-container-btn-item:hover .banner-msg-container-btn-item-iconChecked {
  opacity: 1;
  width: 23px;
}
.banner-msg-container-btn-item:hover > span {
  color: #262626;
}
.banner-msg-container-desc {
  display: flex;
  flex-direction: column;
  color: #FFFFFF;
  font-family: SourceHanSansSC, SourceHanSansSC;
  font-weight: 500;
  font-style: normal;
  padding-bottom: 17px;
}
.banner-msg-container-desc-title {
  height: 20px;
  font-size: 15px;
  line-height: 30px;
  letter-spacing: 1px;
  text-align: left;
}
.banner-msg-container-desc-time {
  height: 24px;
  font-size: 18px;
  color: #FFFFFF;
  line-height: 36px;
  letter-spacing: 1px;
  margin: 30px 0 18px;
}
.banner-msg-container-desc-time > span {
  height: 16px;
  font-weight: 500;
  font-size: 16px;
  line-height: 24px;
  letter-spacing: 2px;
}
.banner-msg-container-desc-closedTime {
  height: 24px;
  font-size: 18px;
  line-height: 36px;
  letter-spacing: 1px;
  text-align: left;
}
.banner-msg-container-desc-closedTime > span {
  height: 16px;
  font-weight: 500;
  font-size: 12px;
  line-height: 24px;
  letter-spacing: 3px;
}

.exhibition {
  width: 100%;
  min-width: 1400px;
  position: relative;
}
.exhibition-main {
  width: 100%;
  background: #3B3839;
}
.exhibition-main-container {
  width: 1050px;
  margin: 0 auto;
  padding-top: 67px;
}

.home-main-container-nav {
  width: 100%;
  margin-bottom: 30px;
  display: flex;
  align-items: center;
}
.home-main-container-nav-main {
  display: flex;
  justify-content: center;
  align-items: center;
  width: calc(100% - 49px);
  gap: 120px;
}
.home-main-container-nav-main-checkedNav{
  height: 32px !important;
  font-size: 24px !important;
  color: #f1f1f1 !important;
  line-height: 32px !important;
  letter-spacing: 1px !important;
}
.home-main-container-nav-main-checked{
  height: 32px !important;
  font-size: 24px !important;
  color: #FFFFFF !important;
  line-height: 32px !important;
  letter-spacing: 1px !important;
}
.nav-main-checkedNav{
  height: 32px !important;
  font-size: 24px !important;
  color: #FFFFFF !important;
  line-height: 32px !important;
  letter-spacing: 1px !important;
}
.home-main-container-nav-main > span {
  display: inline-block;
  font-family: SourceHanSansSC, SourceHanSansSC;
  font-weight: 500;
  font-size: 18px;
  color: #ADADAD;
  text-align: left;
  font-style: normal;
  cursor: pointer;
}
.home-main-container-nav-main > span:hover{
  color: #f1f1f1;
}
.home-main-container-nav-more {
  width: 49px;
}
.home-main-container-nav-more  a {
  font-family: MicrosoftYaHei;
  font-size: 16px;
  color: #ADADAD;
  line-height: 28px;
  text-align: justify;
  font-style: normal;
}
.home-main-container-nav-more > img {
  width: 8px;
  height: 13px;
}
.exhibition_foretell{
  width: 100%;
  height: 375px;
  display: none;

}

.exhibitionPreview-main {
  display: flex;
  /*flex-wrap: wrap;*/
  width: 100%;
  margin: 0 auto;
}
.exhibitionPreview-main-container {
  width: 525px;
  height: 370px;
  padding: 24px;
  display: flex;
}
.exhibitionPreview-main-container:nth-child(even) {
  z-index: 1;
}
.exhibitionPreview-main-container:hover {
  background: #FBD51D;
}
.exhibitionPreview-main-container:hover .exhibitionPreview-main-container-content {
  background: #FBD51D;
}
.exhibitionPreview-main-container:hover .exhibitionPreview-main-container-content-title {
  color: #1C1C1C;
}
.exhibitionPreview-main-container:hover .exhibitionPreview-main-container-content-desc {
  color: #1C1C1C;
}
.exhibitionPreview-main-container:hover .exhibitionPreview-main-container-content-time {
  color: #1C1C1C;
}
.exhibitionPreview-main-container:hover .exhibitionPreview-main-container-content-line {
  opacity: 1;
}


.exhibitionPreview-main-container-content {
  padding: 32px 20px;
  padding-bottom: 52px;
  background: #4F4C4E;
}
.exhibitionPreview-main-container-content-title {
  width: 204px;
  display: inline-block;
  font-family: SourceHanSansSC, SourceHanSansSC;
  font-weight: 600;
  font-size: 20px;
  color: #FFFFFF;
  line-height: 35px;
  letter-spacing: 1px;
  text-align: left;
  font-style: normal;
  white-space: nowrap;
  overflow: hidden;
  /*text-overflow: ellipsis;*/

}
.exhibitionPreview-main-container-content-title span{
  display: inline-block; /* 允许使用transform */
  padding-left: 100%; /* 初始偏移量，确保文本一开始不在视口内 */
  animation: scrollText 8s linear infinite;
}
@keyframes scrollText {
  from { transform: translateX(0%); }
  to { transform: translateX(-100%); }
}
.exhibitionPreview-main-container-content-line {
  width: 100%;
  height: 1px;
  border: 1px solid #1C1C1C;
  opacity: 0;
  margin: 9px 0 12px;
}
.exhibitionPreview-main-container-content-desc {
  width: 204px;
  height: 97px;
  font-family: SourceHanSansSC, SourceHanSansSC;
  font-weight: 400;
  font-size: 14px;
  color: #ADADAD;
  line-height: 23px;
  text-align: justify;
  font-style: normal;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
  overflow: hidden;
  text-overflow: ellipsis;
}
.exhibitionPreview-main-container-content-desc_h {

  height: auto;

}
.exhibitionPreview-main-container-content-time {
  display: flex;
  align-items: flex-end;
  color: #ADADAD;
  margin-top: 60px;
}
.exhibitionPreview-main-container-content-time > span {
  font-size: 25px;
  margin: 0 6px -2px 20px;
  transform: rotate(15deg);
}
.exhibitionPreview-main-container-content-time-item {
  display: flex;
  flex-direction: column;
  text-align: left;
  font-style: normal;
  font-family: SourceHanSansSC, SourceHanSansSC;
  font-weight: 400;
}
.exhibitionPreview-main-container-content-time-item-year {
  height: 23px;
  font-size: 14px;
  line-height: 23px;
}
.exhibitionPreview-main-container-content-time-item-mouth {
  height: 23px;
  font-size: 22px;
  line-height: 23px;
  letter-spacing: 1px;
}
.exhibitionPreview-main-container-descBg {
  height: 100%;
  width: 236px;
  min-width: 236px;
  /*object-fit: cover;*/
  /*object-position: center center;*/
  z-index: 1;
}
.exhibitionPreview-main-container-descBg img{
  width: 100%;
  height: 100%;
  object-fit: cover;
}


.exhibitionOnlineHall-main {
  width:100%;
  margin: 0 auto;
  display: flex;
}
.exhibitionOnlineHall-main-item {
  width:100%;
  margin-left: 26px;

}
.exhibitionOnlineHall-main-container {
  width: 48%;
  height: 575px;
  padding: 40px;
  background: #ffffff;
  margin: 20px 0px;
  float: left;
}
.exhibitionOnlineHall-main-container:hover {
  background: #FBD51D;
}
.exhibitionOnlineHall-main-container-descBg {
  width: 100%;
  height: 410px;
  position: relative;
  background-size: cover;
  background-position: center;
}
.exhibitionOnlineHall-main-container-content {
  width: 100%;
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: 500;
  text-align: left;
  font-style: normal;
}
.exhibitionOnlineHall-main-container-content > span {
  display: inline-block;
  height: 21px;
  margin: 26px 0 16px;
  font-size: 18px;
  color: #949494;
  line-height: 27px;
}
.exhibitionOnlineHall-main-container-content-title {
  height: 24px;
  font-size: 24px;
  color: #000000;
  line-height: 36px;
  letter-spacing: 1px;
}


.declare{
  width: 100%;
  height: 120px;
  position: relative;
  vertical-align: middle;
}
.declare_img1{
  background: url("../img/index_y1.png") no-repeat;
  background-size: cover;
}
.declare_img2{
  background: url("../img/index_y2.png") no-repeat;
  background-size: cover;
}
.declare_img3{
  background: url("../img/index_y3.png") no-repeat;
  background-size: cover;
}
.declare .icon{
  width: 56px;
  height: 22px;
  position: absolute;
  top: 50px;
  right: calc(25% + 160px);
}
.declare .icon img{
  width: 100%;
  height: 100%;
}
.declare a{
  display: inline-block;
  width: 160px;
  height: 48px;
  background: #3B3839;
  border: 2px solid rgba(255,255,255,0.4);
  font-size: 16px;
  color: #FFFFFF;
  line-height: 48px;
  text-align: center;
  vertical-align: middle;
  position: absolute;
  top: 35px;
  right: 20%;
}
.declare a:hover{
  background: #FFFFFF;
  color: #262626;
  box-shadow: 4px 4px 0px 0px rgba(40, 0, 0, 0.3);
}


.declare a:hover .banner-msg-container-btn-item-arrow {
  opacity: 0;
  width: 0;
}
.declare a:hover .banner-msg-container-btn-item-arrowChecked {
  opacity: 1;
  width: 9px;
}
.declare a img{
  position: absolute;
  top: 12px;
  right: 15px;
}

.activity_item{
  width: 32%;
  height: 400px;
  padding: 20px;
  background: #4F4C4E;
  position: relative;
}
.activity_item:nth-child(2){
  margin: 0px 2%;
}
.activity_item:hover{
  background: #6EA63F;
}
.activity_item img{
  width: 100%;
  height: 250px;
  object-fit: cover;
}
.activity_item .title{
  font-weight: 400;
  font-size: 18px;
  color: #FFFFFF;
  border-bottom: 1px solid #FFFFFF;
  padding-bottom: 20px;
  margin-bottom: 20px;
}
.activity_item .time{
  font-size: 14px;
  color: #FFFFFF;
  line-height: 24px;
}
.activity_item .icon-time {
  width: 20px;
  height: 20px;
  margin-right: 8px;
  vertical-align: middle;
}
.activity_item .name{
  font-weight: 500;
  font-size: 30px;
  color: #fff;
  margin: 49px 0 18px 0;
  text-align: center;
}

.activity_foretell{
  width: 100%;
  height: 500px;
  display: none;
}s
.collection_foretells{
  width: 100%;
  height: 500px;
}

.collection_foretell{
  width: 100%;
  height: 500px;
  display: none;
}

.margin_top{
  margin-top: 20px;
}
.collection_item:hover {
  background: #74B7C9;
}
.collection_item:hover .exhibitionPreview-main-container-content {
  background: #74B7C9;
}


.activity_item_s{
  width: 25%;
  height: 548px;
  padding: 24px;
  position: relative;
}
.cultural_item{
  width: 100%;
  height: 100%;
  background: #4F4C4E;
}

.activity_item_s:hover, .activity_item_s:hover .cultural_item{
  background: #A93B75;
}
.activity_item_s img{
  width: 100%;
  height: 375px;
  object-fit: cover;
}
.activity_item_s .title{
  font-weight: 400;
  font-size: 16px;
  color: #FFFFFF;
  border-bottom: 1px solid #FFFFFF;
  padding-bottom: 20px;
  margin-bottom: 20px;
}
.activity_item_s .time{
  font-size: 14px;
  color: #FFFFFF;
  line-height: 24px;
}
.activity_item_s .icon-time {
  width: 20px;
  height: 20px;
  margin-right: 8px;
  vertical-align: middle;
}
.activity_item_s .name{
  font-weight: 500;
  font-size: 18px;
  color: #fff;
  margin: 49px 0 18px 0;
  text-align: center;
  white-space:nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.activity_item_s:hover .name span{
  display: inline-block;
  padding-bottom: 10px;
  border-bottom: 1px solid #FFFFFF;
}
.transform-main{
  /*transform: scale(0.75);*/
  /*transform-origin: top center;*/
}