.page-product .product_head {
  height: 500px;
  background-image: url(../../v2021.08/img/banner_1.png);
  background-position: center;
  background-repeat: no-repeat;
}
.page-product .product_head .container .describe {
  max-width: 700px;
}
.page-product .product_head .container .describe * {
  color: #ffffff;
}
.page-product .product_head .container .describe h1 {
  font-size: 48px;
  line-height: 2;
}
.page-product .product_head .container .describe h2 {
  font-size: 24px;
}
.page-product .product_list {
  padding: 100px 0px;
}
.page-product .product_list .container ul {
  flex-wrap: wrap;
}
.page-product .product_list .container ul li {
  width: 33.3%;
  height: 390px;
  border: 1px solid #e5e5e5;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding-top: 90px;
  padding-bottom: 54px;
}
.page-product .product_list .container ul li .img_cover {
  width: 115px;
  height: 110px;
}
.page-product .product_list .container ul li .product_desc {
  width: 100%;
}
.page-product .product_list .container ul li h2,
.page-product .product_list .container ul li h3 {
  text-align: center;
}
.page-product .product_list .container ul li h2 {
  font-size: 24px;
  color: #333333;
  line-height: 2.8;
}
.page-product .product_list .container ul li h3 {
  color: #666666;
}
.page-product .product_list .container ul li:hover {
  background-color: #ffffff;
  box-shadow: 0px 0px 20px 2px rgba(51, 51, 51, 0.14);
}
.page-product .product_list .container ul li:hover h2 {
  color: #00a4e0;
}
.page-lesson .lesson_head {
  width: 100%;
  height: 880px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.page-lesson .lesson_head .head_desc {
  width: 100%;
  height: 680px;
  background-image: url(../../v2021.08/img/banner_2.png);
  background-position: center;
  background-repeat: no-repeat;
}
.page-lesson .lesson_head .head_desc .container {
  flex-direction: column;
}
.page-lesson .lesson_head .head_desc .container * {
  max-width: 900px;
  color: #ffffff;
}
.page-lesson .lesson_head .head_desc .container .title h1 {
  font-size: 48px;
}
.page-lesson .lesson_head .head_desc .container .title h2 {
  font-size: 24px;
  margin-top: 36px;
}
.page-lesson .lesson_head .head_desc .container ul {
  margin-top: 77px;
}
.page-lesson .lesson_head .head_desc .container ul li {
  width: 190px;
  height: 80px;
  margin-right: 19px;
  border: 1px solid #ffffff;
  border-radius: 4px;
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
}
.page-lesson .lesson_head .head_desc .container ul li h2 {
  font-size: 20px;
  color: #ffffff;
  letter-spacing: 1px;
  width: 100%;
  text-align: center;
}
.page-lesson .lesson_head .head_desc .container ul li .blue {
  position: absolute;
  width: 16px;
  height: 16px;
  background-color: #00a4e0;
  border-radius: 0px 0px 4px 0px;
  right: 0px;
  bottom: 0px;
}
.page-lesson .lesson_head .policy_file {
  padding: 40px 60px;
  width: 1200px;
  position: absolute;
  height: 314px;
  bottom: 0;
  border: 1px solid #eeeeee;
  background-image: url(../../v2021.08/img/lesson_policy_background.png);
  background-position: center;
  background-repeat: no-repeat;
}
.page-lesson .lesson_head .policy_file .title {
  font-size: 40px;
  color: #00a4e0;
  text-align: center;
  width: 100%;
}
.page-lesson .lesson_head .policy_file .swiper-container {
  margin-top: 50px;
}
.page-lesson .lesson_head .policy_file .swiper-container .swiper-slide {
  height: 133px;
  padding: 15px 25px;
  border: 1px solid #e2e4ee;
}
.page-lesson .lesson_head .policy_file .swiper-container .swiper-slide a {
  font-size: 18px;
  color: #000033;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}
.page-lesson .lesson_head .policy_file .swiper-container .swiper-slide h3 {
  margin-top: 25px;
  color: rgba(0, 0, 51, 0.5);
}
.page-lesson .lesson_head .policy_file .swiper-container .swiper-slide:hover {
  background-color: #4d5260;
}
.page-lesson .lesson_head .policy_file .swiper-container .swiper-slide:hover a {
  color: #ffffff;
}
.page-lesson .lesson_head .policy_file .swiper-container .swiper-slide:hover h3 {
  color: rgba(255, 255, 255, 0.51);
}

.page-lesson .lesson_list_container {
  width: 1200px;
  margin: 0 auto;
  padding: 0px 15px;
  height: 100%;
}
.page-lesson .lesson_list {
  margin-top: 95px;
  margin-bottom: 80px;
}
.page-lesson .lesson_list .title {
  font-size: 40px;
  color: #00a4e0;
  text-align: center;
}
.page-lesson .lesson_list ul {
  flex-wrap: wrap;
  margin-top: 43px;
}
.page-lesson .lesson_list ul li {
  width: 376px;
  height: 320px;
  margin-top: 37px;
  background-color: #ffffff;
  border: 1px solid #eeeeee;
}
.page-lesson .lesson_list ul li .exp_cover {
  display: inline-block;
  width: 100%;
  height: 236px;
  background-color: #eeeeee;
}
.page-lesson .lesson_list ul li .exp_desc {
  padding: 12px;
}
.page-lesson .lesson_list ul li .exp_desc a {
  line-height: 1.5;
  width: 100%;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
  overflow: hidden;
}
.page-lesson .lesson_list ul li .exp_desc .info {
  margin-top: 15px;
}
.page-lesson .lesson_list ul li .exp_desc .info i {
  margin-right: 5px;
}
.page-lesson .lesson_list ul li:nth-child(3n+2) {
  margin-left: 14px;
  margin-right: 14px;
}
/* .page-lesson .lesson_list ul li:nth-child(n+10) {
  display: none;
} */
.page-lesson .lesson_list ul li:hover {
  opacity: 0.8;
  box-shadow: 0px 0px 12px 0px rgba(0, 0, 0, 0.1);
}
.page-lesson .lesson_list ul li:hover a {
  color: #00a4e0;
}
.page-laboratory .exp_head {
  width: 100%;
  height: 500px;
  background-image: url(../../v2021.08/img/banner-3.png);
  background-position: center;
  background-repeat: no-repeat;
}
.page-laboratory .exp_head .container {
  flex-direction: column;
}
.page-laboratory .exp_head .container * {
  color: #ffffff;
  max-width: 800px;
}
.page-laboratory .exp_head .container .title {
  font-size: 48px;
  letter-spacing: 4px;
}
.page-laboratory .exp_head .container .desc {
  font-size: 22px;
  letter-spacing: 0px;
  -webkit-line-clamp: 4;
  margin-top: 40px;
}
.page-laboratory .exp_list {
  margin: 89px 0px 81px 0px;
}
.page-laboratory .exp_list .container {
  max-width:1200px;
}
.page-laboratory .exp_list .container .title {
  font-size: 40px;
  letter-spacing: 0px;
  color: #00a4e0;
  text-align: center;
}
.page-laboratory .exp_list .container ul {
  flex-wrap: wrap;
  margin-top: 44px;
}
.page-laboratory .exp_list .container ul li {
  width: 376px;
  height: 287px;
  margin-top: 36px;
  background-color: #ffffff;
  border: 1px solid #eeeeee;
}
.page-laboratory .exp_list .container ul li .solution_cover {
  width: 100%;
  height: 236px;
  background-color: #eeeeee;
  display: inline-block;
}
.page-laboratory .exp_list .container ul li .solution_title {
  padding: 15px;
}
.page-laboratory .exp_list .container ul li .solution_title a {
  -webkit-line-clamp: 1;
}
.page-laboratory .exp_list .container ul li:nth-child(3n+2) {
  margin-left: 14px;
  margin-right: 14px;
}
.page-laboratory .exp_list .container ul li:nth-child(n+10) {
  display: none;
}
.page-laboratory .exp_list .container ul li:hover {
  box-shadow: 0px 0px 12px 0px rgba(0, 0, 0, 0.1);
}
.page-laboratory_detail .detail_head {
  width: 100%;
  height: 570px;
  position: relative;
  flex-direction: column;
}
.page-laboratory_detail .detail_head .head_img {
  width: 100%;
  height: 470px;
  background-color: #eeeeee;
}
.page-laboratory_detail .detail_head .head_desc {
  width: 1200px;
  height: 251px;
  background-color: #ffffff;
  box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.06);
  position: absolute;
  bottom: 0px;
  padding: 36px;
}
.page-laboratory_detail .detail_head .head_desc .desc h1 {
  font-size: 36px;
  letter-spacing: 3px;
  color: #333333;
}
.page-laboratory_detail .detail_head .head_desc .desc p {
  width: 700px;
  color: #666666;
  letter-spacing: 0px;
  -webkit-line-clamp: 5;
  margin-top: 30px;
}
.page-laboratory_detail .detail_head .head_desc .desc_img {
  width: 292px;
  height: 182px;
  background-color: #000000;
}
.page-laboratory_detail .introduce {
  margin-top: 93px;
}
.page-laboratory_detail .introduce .container .title {
  font-size: 40px;
  letter-spacing: 0px;
  color: #00a4e0;
  text-align: center;
}
.page-laboratory_detail .introduce .container .introduce_img {
  width: 100%;
  height: 555px;
  margin-top: 79px;
}
.page-laboratory_detail .detail_list {
  width: 100%;
  min-width: 1200px;
  flex-wrap: wrap;
  margin-top: 96px;
  margin-bottom: 107px;
}
.page-laboratory_detail .detail_list li {
  width: 33%;
  height: 0;
  padding-bottom: 20.7%;
  background-color: #eeeeee;
  margin-top: 8px;
  position: relative;
}
.page-laboratory_detail .detail_list li .detail_cover {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: 12;
}
.page-laboratory_detail .detail_list li .detail_desc {
  background-color: rgba(0, 0, 0, 0.3);
  padding: 40px;
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: -2;
  flex-direction: column;
}
.page-laboratory_detail .detail_list li .detail_desc h2 {
  font-size: 22px;
  color: #ffffff;
}
.page-laboratory_detail .detail_list li .detail_desc p {
  margin-top: 30px;
  -webkit-line-clamp: 4;
  font-size: 16px;
  color: #ffffff;
  letter-spacing: 0px;
}
.page-laboratory_detail .detail_list li:hover .detail_desc {
  z-index: 222;
}
.page-vr_example .example_head {
  flex-direction: column;
  width: 100%;
  height: 800px;
  position: relative;
}
.page-vr_example .head_desc {
  width: 100%;
  height: 500px;
  background-image: url(../../v2021.08/img/banner-4.png);
  background-position: center;
  background-repeat: no-repeat;
}
.page-vr_example .head_desc .container {
  flex-direction: column;
}
.page-vr_example .head_desc .container * {
  color: #ffffff;
  max-width: 990px;
}
.page-vr_example .head_desc .container .title {
  font-size: 48px;
  letter-spacing: 4px;
}
.page-vr_example .head_desc .container p {
  -webkit-line-clamp: 5;
  font-size: 24px;
  margin-top: 54px;
  line-height: 1.5;
}
.page-vr_example .policy_file {
  padding: 40px 60px;
  width: 1200px;
  position: absolute;
  height: 314px;
  bottom: 79px;
  border: 1px solid #eeeeee;
  background-image: url(../../v2021.08/img/lesson_policy_background.png);
  background-position: center;
  background-repeat: no-repeat;
}
.page-vr_example .policy_file .title {
  font-size: 40px;
  color: #00a4e0;
  text-align: center;
  width: 100%;
}
.page-vr_example .policy_file .swiper-container {
  margin-top: 50px;
}
.page-vr_example .policy_file .swiper-container .swiper-slide {
  height: 133px;
  padding: 15px 25px;
  border: 1px solid #e2e4ee;
}
.page-vr_example .policy_file .swiper-container .swiper-slide a {
  font-size: 18px;
  color: #000033;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}
.page-vr_example .policy_file .swiper-container .swiper-slide h3 {
  margin-top: 25px;
  color: rgba(0, 0, 51, 0.5);
}
.page-vr_example .policy_file .swiper-container .swiper-slide:hover {
  background-color: #4d5260;
}
.page-vr_example .policy_file .swiper-container .swiper-slide:hover a {
  color: #ffffff;
}
.page-vr_example .policy_file .swiper-container .swiper-slide:hover h3 {
  color: rgba(255, 255, 255, 0.51);
}
.page-vr_example .example_describe {
  padding-top: 100px;
  background-color: #f5f6fa;
  height: 678px;
  width: 100%;
}
.page-vr_example .example_describe .container .title {
  font-size: 40px;
  color: #00a4e0;
  text-align: center;
  letter-spacing: 0px;
}
.page-vr_example .example_describe .container ul {
  margin-top: 81px;
  flex-wrap: wrap;
}
.page-vr_example .example_describe .container ul li {
  width: 24.8%;
  height: 186px;
  background-image: url(../../v2021.08/img/describe.png);
  background-position: center;
  background-repeat: no-repeat;
  margin-top: 4px;
}
.page-vr_example .example_describe .container ul li .back {
  padding: 20px;
  width: 100%;
  height: 100%;
}
.page-vr_example .example_describe .container ul li .back h3 {
  font-size: 22px;
  color: #333333;
  text-align: center;
}
.page-vr_example .example_describe .container ul li .back h2 {
  line-height: 1.5;
  color: #333333;
  text-align: center;
}
.page-vr_example .example_describe .container ul li .back p {
  margin-top: 13px;
  font-size: 14px;
  color: #666666;
  line-height: 1.5;
  -webkit-line-clamp: 4;
}
.page-vr_example .example_describe .container ul li:hover {
  box-shadow: 0px 0px 12px 0px rgba(0, 0, 0, 0.1);
}
.page-vr_example .example_describe .container ul li:hover .back {
  background: rgba(72, 86, 96, 0.75);
}
.page-vr_example .example_describe .container ul li:hover .back * {
  color: #ffffff;
}
.page-vr_example .detail_list {
  width: 100%;
  min-width: 1200px;
  flex-wrap: wrap;
  margin-top: 96px;
  margin-bottom: 107px;
}
.page-vr_example .detail_list li {
  width: 33%;
  height: 0;
  padding-bottom: 20.7%;
  background-color: #eeeeee;
  margin-top: 8px;
  position: relative;
}
.page-vr_example .detail_list li .detail_cover {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: 12;
}
.page-vr_example .detail_list li .detail_desc {
  background-color: rgba(0, 0, 0, 0.3);
  padding: 40px;
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: -2;
  flex-direction: column;
}
.page-vr_example .detail_list li .detail_desc h2 {
  font-size: 22px;
  color: #ffffff;
}
.page-vr_example .detail_list li .detail_desc p {
  margin-top: 30px;
  -webkit-line-clamp: 4;
  font-size: 16px;
  color: #ffffff;
  letter-spacing: 0px;
}
.page-vr_example .detail_list li:hover .detail_desc {
  z-index: 222;
}
.page-cooperation .property_head {
  flex-direction: column;
  width: 100%;
  height: 720px;
  position: relative;
}
.page-cooperation .property_head .head_desc {
  width: 100%;
  height: 500px;
  background-image: url(../../v2021.08/img/banner-5.png);
  background-position: center;
  background-repeat: no-repeat;
}
.page-cooperation .property_head .head_desc .container {
  flex-direction: column;
}
.page-cooperation .property_head .head_desc .container * {
  color: #ffffff;
  max-width: 990px;
}
.page-cooperation .property_head .head_desc .container .title {
  font-size: 48px;
  letter-spacing: 4px;
}
.page-cooperation .property_head .head_desc .container p {
  -webkit-line-clamp: 5;
  font-size: 24px;
  margin-top: 54px;
  line-height: 1.5;
}
.page-cooperation .property_head .policy_file {
  padding: 40px 60px;
  width: 1200px;
  position: absolute;
  height: 314px;
  bottom: 0px;
  border: 1px solid #eeeeee;
  background-image: url(../../v2021.08/img/lesson_policy_background.png);
  background-position: center;
  background-repeat: no-repeat;
}
.page-cooperation .property_head .policy_file .title {
  font-size: 40px;
  color: #00a4e0;
  text-align: center;
  width: 100%;
}
.page-cooperation .property_head .policy_file .swiper-container {
  margin-top: 50px;
}
.page-cooperation .property_head .policy_file .swiper-container .swiper-slide {
  height: 133px;
  padding: 15px 25px;
  border: 1px solid #e2e4ee;
}
.page-cooperation .property_head .policy_file .swiper-container .swiper-slide a {
  font-size: 18px;
  color: #000033;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}
.page-cooperation .property_head .policy_file .swiper-container .swiper-slide h3 {
  margin-top: 25px;
  color: rgba(0, 0, 51, 0.5);
}
.page-cooperation .property_head .policy_file .swiper-container .swiper-slide:hover {
  background-color: #4d5260;
}
.page-cooperation .property_head .policy_file .swiper-container .swiper-slide:hover a {
  color: #ffffff;
}
.page-cooperation .property_head .policy_file .swiper-container .swiper-slide:hover h3 {
  color: rgba(255, 255, 255, 0.51);
}
.page-cooperation .coo_case {
  margin-top: 27px;
  margin-bottom: 97px;
}
.page-cooperation .coo_case .container {
  max-width: 1200px;
}
.page-cooperation .coo_case .container .title {
  font-size: 40px;
  color: #00a4e0;
  text-align: center;
}
.page-cooperation .coo_case .container ul {
  margin-top: 44px;
  flex-wrap: wrap;
}
.page-cooperation .coo_case .container ul li {
  margin-top: 36px;
  width: 376px;
  height: 320px;
  background-color: #ffffff;
  border: 1px solid #eeeeee;
}
.page-cooperation .coo_case .container ul li .case_cover {
  display: inline-block;
  width: 100%;
  height: 236px;
  background-color: #eeeeee;
}
.page-cooperation .coo_case .container ul li .desc {
  padding: 16px;
  height: 84px;
}
.page-cooperation .coo_case .container ul li .desc .info {
  width: 200px;
}
.page-cooperation .coo_case .container ul li .desc .info a {
  width: 100%;
  height: 100%;
  display: inline-block;
}
.page-cooperation .coo_case .container ul li .desc .info a h2 {
  line-height: 2;
  color: #333333;
}
.page-cooperation .coo_case .container ul li .desc .info a h3 {
  color: #666666;
}
.page-cooperation .coo_case .container ul li .desc .school_logo {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
  background-color: #eeeeee;
}
.page-cooperation_detail .detail_head {
  padding-top: 141px;
}
.page-cooperation_detail .detail_head .container .title {
  width: 100%;
  height: 279px;
  background-color: #f5f6fa;
  border: 1px solid #eeeeee;
  margin-top: 20px;
  padding: 34px;
}
.page-cooperation_detail .detail_head .container .title .cover {
  width: 340px;
  height: 210px;
  background-color: #bbbbbb;
}
.page-cooperation_detail .detail_head .container .title .desc {
  width: 470px;
  border-right: 1px solid #eeeeee;
}
.page-cooperation_detail .detail_head .container .title .desc h1 {
  font-size: 22px;
  letter-spacing: 2px;
  color: #333333;
}
.page-cooperation_detail .detail_head .container .title .desc p {
  color: #666666;
  padding-right: 50px;
  margin-top: 25px;
  -webkit-line-clamp: 7;
}
.page-cooperation_detail .detail_head .container .title .logo {
  width: 190px;
  height: 190px;
  border-radius: 50%;
  overflow: hidden;
  background-color: #666666;
}
.page-cooperation_detail .content {
  margin-top: 25px;
  margin-bottom: 53px;
}
.page-cooperation_detail .content .container {
  background-color: #ffffff;
  border: 1px solid #eeeeee;
  padding: 41px 34px;
  width: 1170px;
}
.page-cooperation_detail .content .container .list_item .title {
  font-size: 18px;
  color: #333333;
}
.page-cooperation_detail .content .container .list_item p {
  font-size: 14px;
  color: #666666;
  margin-top: 22px;
}
.page-cooperation_detail .content .container .list_item .item_img {
  width: 100%;
  height: 440px;
  margin-top: 28px;
  background-color: #666666;
}
.page-cooperation_detail .content .container .list_item:not(:last-child) {
  padding-bottom: 60px;
}