@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.9;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}
.time-value.updated {
  animation: pulse 0.3s ease-in-out;
}
/* 加载动画 */
.loading {
  display: inline-block;
  animation: pulse 1.5s infinite;
}
/* 视频容器 */
.video-container {
  /* position: fixed; */
  /* top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            min-width: 100%;
            min-height: 100%;
            width: auto;
            height: auto; */
  height: 100vh;
  width: 100%;
  position: absolute;
  top: 0;
  z-index: -1;
  overflow: hidden;
}
.banner_img {
  display: none;
}
/* 视频元素 */
.video-bg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.video-cover {
  background: rgba(0, 0, 0, 0.5);
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: 1;
}
main {
  position: relative;
  /* height: 100vh; */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: white;
  text-align: center;
}
main .banner_box {
  display: flex;
  align-items: center;
  padding: 0 20px;
  width: 100%;
  height: 100vh;
}
main .banner {
  padding-top: 20vh;
  position: relative;
  width: 100%;
  height: 100%;
  margin: 0 auto;
  background-color: #00000001;
}
main .banner h1 {
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
  animation: fadeInUp 1s ease;
  font-family: 'SOURCEHANSERIFCN-HEAVY';
  font-size: 50px;
  font-weight: normal;
  font-stretch: normal;
  color: #ffffff;
}
main .banner h2 {
  margin-top: 3vh;
  text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.6);
  animation: fadeIn 1.5s ease;
  font-family: 'SOURCEHANSERIFCN-HEAVY';
  font-size: 36px;
  font-weight: normal;
  font-stretch: normal;
  color: #ffffff;
}
main .banner p {
  font-size: 16px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 32px;
  color: #ffffff;
  margin-top: 2vh;
}
main .banner .time_position {
  font-size: 21px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 37px;
  letter-spacing: 0px;
  color: #ffffff;
  display: flex;
  justify-content: center;
  margin: 0vh auto 2vh;
}
main .banner .time_position p {
  font-size: 21px;
}
main .banner .time_position .time,
main .banner .time_position .position {
  display: flex;
  align-items: center;
}
main .banner .time {
  margin-right: 30px;
}
main .banner .time i {
  display: inline-block;
  margin-right: 6px;
  width: 21px;
  height: 21px;
  background: url(https://wal.oversea.cnki.net/en/2025/images/time.png) no-repeat center center;
}
main .banner .position i {
  margin-right: 10px;
  display: inline-block;
  width: 16px;
  height: 23px;
  background: url(https://wal.oversea.cnki.net/en/2025/images/position.png) no-repeat center center;
}
main .banner .countdown-box {
  position: absolute;
  width: calc(100% + 40px);
  bottom: 0;
  margin: 0 -20px;
  background-image: linear-gradient(270deg, #faa3b8 0%, #5760e7 100%), linear-gradient(#1b66e6, #1b66e6);
  background-blend-mode: normal,
        normal;
  padding: 30px 0;
}
main .banner .countdown-box .count-down-tit {
  font-size: 26px;
  line-height: 37px;
  color: #ffffff;
  margin-bottom: 30px;
}
main .banner .countdown-box .count-down-time {
  height: 13vh;
  display: flex;
  max-width: 800px;
  margin: 0 auto;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
  padding: 0 20px;
}
main .banner .countdown-box .count-down-time .separator {
  width: 1px;
  height: 100%;
  background-color: #ffffff;
}
main .banner .countdown-box .count-down-time .time-value {
  font-size: 74px;
  line-height: 68px;
}
main .banner .countdown-box .count-down-time .time-label {
  font-size: 16px;
}
main .section_bg {
  width: 100%;
}
main .discuss_bg {
  background-color: #e69bbe33;
}
main .section_img_box {
  font-size: 0;
}
main .section_img_box img {
  width: 100%;
}
main .section {
  color: #000000;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px 50px;
}
main .section .title {
  display: inline-block;
  font-family: 'SOURCEHANSERIFCN-HEAVY';
  font-size: 40px;
  color: #000000;
  position: relative;
  padding-top: 60px;
  margin-bottom: 55px;
}
main .section .title::after {
  content: '';
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  position: absolute;
  width: 62px;
  height: 2px;
  background-color: #1b66e6;
}
main .about_box p.text {
  text-align: left;
  font-size: 16px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 32px;
  color: #000000;
  margin-bottom: 10px;
}
main .about_box .school_list {
  display: flex;
  justify-content: space-between;
  margin-top: 20px;
  max-width: 900px;
}
main .about_box .school_list div {
  display: flex;
  align-items: center;
  width: 150px;
}
main .about_box .school_list div.small {
  width: 120px;
}
main .about_box .school_list img {
  width: 100%;
}
main .discuss_list {
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  flex-wrap: wrap;
}
main .discuss_list .discuss_item {
  width: 100%;
  position: relative;
}
main .discuss_list .discuss_item p {
  margin: 0 auto;
  width: 100%;
  max-width: 880px;
  text-align: left;
  font-size: 20px;
  line-height: 40px;
  letter-spacing: 0px;
  color: #000000;
}
main .discuss_list .discuss_item p i {
  width: 5px;
  height: 5px;
  background-color: #000000;
  border-radius: 50%;
  display: inline-block;
  margin-right: 5px;
  vertical-align: middle;
}
@media screen and (max-width: 1280px) {
  main .banner h1 {
    font-size: 36px;
  }
  main .banner h2 {
    font-size: 22px;
  }
  main .banner p {
    margin-top: 1vh;
  }
  main .banner .countdown-box {
    padding: 20px 0;
  }
  main .banner .countdown-box .count-down-tit {
    font-size: 22px;
    margin-bottom: 20px;
  }
  main .banner .countdown-box .count-down-time .time-value {
    font-size: 60px;
    line-height: 56px;
  }
}
@media screen and (max-width: 1024px) {
  main .site_intro {
    display: block;
  }
  main .site_intro .site_left {
    padding: 60px 20px 30px 20px;
  }
  main .site_intro .site_left,
  main .site_intro .site_right {
    width: 100%;
  }
  main .special_box {
    display: block;
  }
  main .special_box .special_right {
    width: 100%;
    text-align: center;
    padding-top: 30px;
    padding-left: 0;
  }
  main .special_box .special_right img {
    width: 100%;
  }
}
@media screen and (max-width: 850px) {
  header .header_big .header_left .nav li {
    display: none;
  }
  header .header_big .header_left .nav li.Home {
    display: block;
  }
  header .header_big .header_right li.menu-btn {
    display: flex;
  }
  main .section .title {
    font-size: 6vw;
  }
  main .banner {
    padding-top: 15vh;
  }
  main .banner h1 {
    font-size: 34px;
  }
  main .banner h2 {
    font-size: 28px;
  }
  main .banner .banner_down {
    bottom: 2vh;
  }
  main .about_box .school_list {
    flex-wrap: wrap;
  }
  main .about_box .school_list div {
    width: 30%;
    margin-bottom: 20px;
  }
  main .about_box .school_list div.small {
    width: 25%;
  }
  main .discuss_list .discuss_item {
    width: 100%;
  }
}
@media screen and (max-width: 768px) {
  .video-bg {
    display: none;
  }
  .banner_img {
    display: block;
    width: 100%;
    height: 100%;
  }
  .tn-person-r .ecp_tn-title .ecp_tn-tab i,
  .tn-person-r .tn-user i {
    padding: 0 10px !important;
  }
  header .header_big .header_right > li a {
    padding: 0 10px;
  }
  header .header_big .header_right > li {
    margin: 0 5px;
  }
  header .header_big .header_right .nav li {
    margin: 8px;
  }
  main .agenda_table {
    display: none;
  }
  main .agenda_text {
    display: block;
    text-align: left;
  }
  main .agenda_text .agenda_title {
    padding: 0 20px;
    height: 40px;
    line-height: 40px;
    font-size: 18px;
    font-weight: bold;
    color: #ffffff;
    background-image: linear-gradient(90deg, #1758ff 0%, #a550ff 100%), linear-gradient(#ffffff, #ffffff);
    background-blend-mode: normal,
        normal;
  }
  main .agenda_text .agenda_info {
    padding: 20px;
    background-color: #8cb2f326;
  }
  main .agenda_text .agenda_info p {
    line-height: 32px;
  }
  main .agenda_text .agenda_info p.info-tit {
    font-weight: bold;
  }
}
@media screen and (max-width: 600px) {
  main .section .title {
    font-size: 8vw;
  }
  main .banner h1 {
    font-size: 5vw;
  }
  main .banner h2 {
    font-size: 4vw;
  }
  main .banner p {
    line-height: 32px;
    font-size: 3vw;
  }
  main .banner .time_position {
    line-height: 30px;
  }
  main .banner .time_position p {
    line-height: 30px;
    font-size: 4vw;
  }
  main .banner .btn_box {
    margin-top: 4vh;
  }
}