/* Banner轮播图样式 */
.banner-swiper {
  width: 100%;
  // height: 789px;
  position: relative;
  overflow: hidden;
}

.banner-swiper .swiper {
  width: 100%;
  height: 100%;
}

.banner-swiper .swiper-slide {
  position: relative;
  width: 100%;
  height: 100%;
}

.banner-swiper .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.banner-swiper .slide-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: white;
  z-index: 2;
  background: rgba(0, 0, 0, 0.3);
  padding: 40px;
  border-radius: 10px;
  backdrop-filter: blur(5px);
}

.banner-swiper .slide-content h2 {
  font-size: 48px;
  font-weight: bold;
  margin-bottom: 20px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.banner-swiper .slide-content p {
  font-size: 24px;
  line-height: 1.5;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* Swiper分页器样式 */
.banner-swiper .swiper-pagination {
  bottom: 30px;
}

.banner-swiper .swiper-pagination-bullet {
  width: 12px;
  height: 12px;
  background: rgba(255, 255, 255, 0.5);
  opacity: 1;
}

.banner-swiper .swiper-pagination-bullet-active {
  background: white;
  transform: scale(1.2);
}

/* Swiper导航按钮样式 */
.banner-swiper .swiper-button-next,
.banner-swiper .swiper-button-prev {
  color: white;
  background: rgba(0, 0, 0, 0.3);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  backdrop-filter: blur(5px);
}

.banner-swiper .swiper-button-next:hover,
.banner-swiper .swiper-button-prev:hover {
  background: rgba(0, 0, 0, 0.5);
}

.banner-swiper .swiper-button-next::after,
.banner-swiper .swiper-button-prev::after {
  font-size: 20px;
}


/* 内容区域样式 */
#video-overlay {
  position: fixed;
  z-index: 9999;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#intro-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  z-index: 1;
}
#enter-btn {
  position: absolute;
  bottom: 8vh;
  left: 50%;
  transform: translateX(-50%);
  padding: 18px 56px;
  font-size: 22px;
  font-weight: bold;
  color: #fff;
  background: rgba(0, 0, 0, 0.45);
  border: none;
  border-radius: 32px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(2px);
  cursor: pointer;
  z-index: 2;
  transition:
    background 0.2s,
    box-shadow 0.2s;
  letter-spacing: 2px;
}
#enter-btn:hover {
  background: rgba(255, 255, 255, 0.18);
  color: white;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.28);
}
.news-center {
  width: 1400px;
  background: white;
  height: calc(1080px - 160px);
  padding: 80px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.news-center > .title::before {
  content: "";
  position: relative;
  top: 25px;
  left: -220px;
  display: block;
  width: 150px;
  height: 2px;
  background-color: #dbdbdb;
}
.news-center > .title::after {
  content: "";
  display: block;
  width: 150px;
  position: relative;
  top: -23px;
  right: calc(-100% - 40px);
  height: 2px;
  background-color: #dbdbdb;
}

.news-center > .title span:nth-of-type(1) {
  color: var(--primary-color);
  font-size: 40px;
  font-weight: bold;
  margin-right: 18px;
  letter-spacing: 8px;
}
.news-center > .title span:nth-of-type(2) {
  color: gray;
  font-size: 42px;
}

.news-center .content {
  width: 100%;
  display: flex;
  justify-content: space-between;
  margin-top: 100px;

  position: relative;
}
.news-center .content .more {

}

.news-center .content .left {
  width: 656px;
  height: 588px;
  display: flex;
  flex-direction: column;
  background-color: #eaeaea;
  align-items: center;
}
.news-center .content .left .date {
  width: calc(100% - 40px);
  margin-top: 32px;
  font-size: 26px;
  color: #999;
  margin-left: 40px;
}
.news-center .content .left .title {
  width: calc(100% - 80px - 32px - 6px);
  height: 96px;
  overflow: hidden;
  margin-top: 32px;
  font-size: 32px;
  color: #333;
  margin-left: 40px;
  margin-right: 40px;
  padding-left: 32px;
  border-left: #333 6px solid;
  line-height: 1.5;
  color: var(--primary-color);
  font-weight: bold;
}
.news-center .content .left img {
  width: 580px;
  height: 321px;
  margin-top: 32px;
  object-fit: cover;
}
.news-center .content .right {
  width: 612px;
  height: 588px;
  display: flex;
  flex-direction: column;
}
.news-center .content .right .item {
  width: 100%;
  height: 218px;
  border-top: 3px solid #dbdbdb;
  display: flex;
  flex-direction: column;
}
.news-center .content .right .item:nth-of-type(3) {
  height: 152px;
}
.news-center .content .right .item .head {
  width: 100%;
  display: flex;
  justify-content: space-between;
  margin-top: 21px;
}
.news-center .content .right .item .head .title {
  width: 550px;
  height: 22px;
  overflow: hidden;
  color: var(--primary-color);
  font-size: 22px;
  font-weight: bold;
}
.news-center .content .right .item .head .date {
  font-size: 18px;
  color: #999;
}
.news-center .content .right .item .content {
  width: 100%;
  flex: 1;
  display: flex;
  justify-content: space-between;
  margin-top: 20px;
}
.news-center .content .right .item .content span {
  font-size: 21px;
  color: #333;
  line-height: 1.5;
  display: block;
  width: 500px;
  height: 90px;
  overflow: hidden;
}
.news-center .content .right .item .content > a {
  margin-top: 80px;
  font-size: 16px;
  color: #999;
}
.news-center .more {
  width: 131px;
  height: 44px;
  background-color: var(--primary-color);
  color: white;
  font-size: 20px;
  text-align: center;
  line-height: 44px;
  border-radius: 22px;
  margin-top: 120px;
  position: absolute;
  right: 700px;
  top: 600px;
  transform: translateY(-50%);
  transform: translateX(50%);
}

#lecture {
  width: 100%;
  height: 1080px;
  background-image: url("/img/lecture-bg.png");
  background-position: center;
  background-size: 100% 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

#lecture > .title {
  margin-top: 80px;
}
#lecture > .title::before {
  content: "";
  position: relative;
  top: 25px;
  left: -220px;
  display: block;
  width: 150px;
  height: 2px;
  background-color: #dbdbdb;
}
#lecture > .title::after {
  content: "";
  display: block;
  width: 150px;
  position: relative;
  top: -23px;
  right: calc(-100% - 40px);
  height: 2px;
  background-color: #dbdbdb;
}

#lecture > .title span:nth-of-type(1) {
  color: var(--primary-color);
  font-size: 40px;
  font-weight: bold;
  margin-right: 18px;
  letter-spacing: 8px;
}
#lecture .more {
  width: 131px;
  height: 44px;
  background-color: var(--primary-color);
  color: white;
  font-size: 20px;
  text-align: center;
  line-height: 44px;
  border-radius: 22px;
  margin-top: 60px;
}

#notices {
  width: 100%;
  height: 1080px;
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: #f5fbfe;
}
#notices > .title {
  margin-top: 80px;
}
#notices > .title::before {
  content: "";
  position: relative;
  top: 25px;
  left: -220px;
  display: block;
  width: 150px;
  height: 2px;
  background-color: #dbdbdb;
}
#notices > .title::after {
  content: "";
  display: block;
  width: 150px;
  position: relative;
  top: -23px;
  right: calc(-100% - 40px);
  height: 2px;
  background-color: #dbdbdb;
}

#notices > .title span:nth-of-type(1) {
  color: var(--primary-color);
  font-size: 40px;
  font-weight: bold;
  margin-right: 18px;
  letter-spacing: 8px;
}
#notices > .content {
  width: 1400px;
  height: 588px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(3, 1fr);
  margin-top: 100px;
  gap: 57px 156px;
}

#notices > .content .item {
  width: 100%;
  height: 100%;
  display: flex;
}
#notices > .content .item .left {
  width: 135px;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: white;
}
#notices > .content .item .left .year {
  width: calc(100% - 16px);
  height: 38px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 20px;
  background-color: var(--primary-color);
  color: white;
  padding-left: 16px;
}
#notices > .content .item .left .year .arrow-right {
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 8px solid white;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  margin-left: 16px;
}
#notices > .content .item .left .day {
  width: 100%;
  height: 80px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 46px;
  color: var(--primary-color);
  font-weight: bold;
}
#notices > .content .item .left .week {
  width: 100%;
  height: 38px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 16px;
  color: var(--primary-color);
}
#notices > .content .item .right {
  width: calc(100% - 135px - 10px);
  height: 100%;
  margin-left: 10px;
}
#notices > .content .item .right .title {
  display: block;
  width: 100%;
  max-height: 40px;
  line-height: 40px;
  color: var(--primary-color);
  font-size: 22px;
  overflow: hidden;
}
#notices > .content .item .right .notice {
  width: 100%;
  max-height: 115px;
  line-height: 28px;
  margin-top: 14px;
  color: #666;
  font-size: 22px;
  overflow: hidden;
}
#notices .more {
  width: 131px;
  height: 44px;
  background-color: var(--primary-color);
  color: white;
  font-size: 20px;
  text-align: center;
  line-height: 44px;
  border-radius: 22px;
  margin-top: 120px;
}

#services {
  width: 100%;
  height: 690px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

#services .container {
  width: 1400px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

#services .container .service {
  /* width: 220px; */
  height: 277px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}
#services .container .service .title {
  font-size: 22px;
  color: #333;
  margin-top: 30px;
}
#services .container .service img {
  z-index: 999;
}
#services .container .service .layer {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  top: 0;
  left: 0;
  position: absolute;
  display: none;
  background-color: var(--primary-color);
}
#services .container .service img:hover + .layer {
  display: block;
}

.carousel-container {
  width: 1400px;
  margin: 40px auto 0 auto;
  display: flex;
  align-items: center;
  position: relative;
}
.carousel-btn {
  background: #fff;
  border-radius: 50%;
  border: none;
  width: 74px;
  height: 74px;
  font-size: 0;
  cursor: pointer;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 1px 2px 8px rgba(0, 0, 0, 0.1);
  position: relative;
}
.carousel-btn.left {
  position: absolute;
  left: -100px;
}
.carousel-btn.right {
  position: absolute;
  right: -100px;
}
.carousel-btn.left::before {
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  border-left: 6px solid #999;
  border-bottom: 6px solid #999;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
}
.carousel-btn.right::before {
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  border-right: 6px solid #999;
  border-top: 6px solid #999;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
}
.carousel-track-wrapper {
  overflow: hidden;
  width: 1400px; /* 3*440px */
  margin-top: 32px;
}
.carousel-track {
  width: 1400px;
  display: flex;
  transition: transform 0.5s;
  padding: 0;
  margin: 0;
  list-style: none;
  gap: 120px;
}
.carousel-item {
  width: 375px;
  border-radius: 12px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.carousel-item > img {
  width: 365px;
  height: 519px;
  object-fit: cover;
}
.carousel-item > h3 {
  display: block;
  width: 100%;
  text-align: left;
  font-size: 22px;
  color: #0074ad;
  margin-bottom: 16px;
  font-weight: bold;
  height: 22px;
  overflow: hidden;
}
.carousel-item > p {
  width: 100%;
  text-align: left;
  font-size: 22px;
  color: #333;
  margin-bottom: 20px;
  line-height: 1.2;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}