.academic_cont .banner {
  height: 600px;
  background: url(../img/banner.png) no-repeat;
  background-size: cover;
  background-position: center center;
}
.academic_cont .banner .btn {
  width: 183px;
  height: 65px;
  background: #E53333;
  border-radius: 4px 4px 4px 4px;
  font-size: 20px;
  line-height: 65px;
  text-align: center;
  color: #fff;
  cursor: pointer;
  margin-top: 392px;
}
.academic_cont .banner .btn:hover {
  background-color: #FF3E47;
}
.academic_cont .inner {
  width: 1200px;
  height: 100%;
  margin: 0 auto;
  overflow: hidden;
}
.academic_cont .introduce {
  height: 618px;
  background: url(../img/bg_1.png) no-repeat;
  background-size: cover;
  background-position: center center;
}
.academic_cont .introduce .title {
  height: 48px;
  font-size: 34px;
  font-weight: bold;
  color: #333333;
  margin-top: 80px;
  margin-bottom: 58px;
  letter-spacing: 2px;
}
.academic_cont .introduce ._cont {
  display: flex;
  flex-direction: column;
  width: 968px;
}
.academic_cont .introduce ._cont span {
  font-size: 20px;
  font-weight: 400;
  color: #333333;
  margin-bottom: 40px;
}
.academic_cont .introduce .inner {
  padding-left: 115px;
}
.academic_cont .service {
  height: 624px;
  background: url(../img/bg_2.png) no-repeat;
  background-size: cover;
  background-position: center center;
}
.academic_cont .service .title {
  height: 48px;
  font-size: 34px;
  font-weight: 500;
  color: #FFFFFF;
  text-align: center;
  margin-top: 80px;
  margin-bottom: 50px;
}
.academic_cont .service .inner {
  width: 1220px;
}
.academic_cont .service .crowd {
  display: flex;
}
.academic_cont .service .crowd .item {
  position: relative;
  width: 367px;
  height: 280px;
  background-image: url(../img/icon/service_1.png);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;
  margin-right: 50px;
}
.academic_cont .service .crowd .item:nth-child(1) {
  margin-left: 20px;
}
.academic_cont .service .crowd .item:nth-child(2) {
  background-image: url(../img/icon/service_2.png);
}
.academic_cont .service .crowd .item:nth-child(3) {
  background-image: url(../img/icon/service_3.png);
  margin-right: 0;
}
.academic_cont .service .crowd .item ._cont {
  position: absolute;
  bottom: -86px;
  left: -20px;
}
.academic_cont .service .crowd .item ._cont ._title {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 210px;
  height: 72px;
  font-size: 20px;
  font-weight: 400;
  color: #FFFFFF;
  background: #2E343E;
}
.academic_cont .service .crowd .item ._cont ._title:hover {
  background: #E53333;
}
.academic_cont .service .crowd .item ._cont ._title:hover i {
  background: url(../img/icon/tag-hover.png) no-repeat;
  background-size: cover;
}
.academic_cont .service .crowd .item ._cont ._title i {
  width: 14px;
  height: 28px;
  margin-right: 8px;
  background: url(../img/icon/tag.png) no-repeat;
  background-size: cover;
}
.academic_cont .service .crowd .item ._cont .explain {
  display: flex;
  flex-direction: column;
  height: 44px;
  font-size: 16px;
  font-weight: 400;
  color: #FFFFFF;
  margin: 22px 0 0 20px;
}
.academic_cont .idea {
  height: 836px;
  background: url(../img/bg_3.png) no-repeat;
  background-size: cover;
  background-position: center center;
}
.academic_cont .idea .inner {
  width: 1280px;
}
.academic_cont .idea .title {
  height: 48px;
  font-size: 34px;
  font-weight: 500;
  color: #1B232E;
  text-align: center;
  margin: 80px 0 50px 0;
}
.academic_cont .idea ._cont {
  display: flex;
  width: 100%;
  height: 578px;
  background-color: #fff;
}
.academic_cont .idea ._cont ._cont-l {
  width: 610px;
  height: 100%;
  background: url(../img/icon/icon-left.png) no-repeat;
  background-size: cover;
  background-position: center center;
}
.academic_cont .idea ._cont ._cont-r {
  width: 670px;
  height: 100%;
  padding: 110px 0 65px 50px;
}
.academic_cont .idea ._cont ._cont-r .represent {
  width: 100%;
}
.academic_cont .idea ._cont ._cont-r .represent .declare {
  display: flex;
  width: 100%;
  margin-bottom: 40px;
}
.academic_cont .idea ._cont ._cont-r .represent .declare:nth-child(2) i {
  background: url(../img/icon/icon-2.png) no-repeat;
  background-size: cover;
}
.academic_cont .idea ._cont ._cont-r .represent .declare:nth-child(3) i {
  background: url(../img/icon/icon-3.png) no-repeat;
  background-size: cover;
}
.academic_cont .idea ._cont ._cont-r .represent .declare i {
  width: 48px;
  height: 48px;
  background: url(../img/icon/icon-1.png) no-repeat;
  background-size: cover;
  margin-right: 16px;
}
.academic_cont .idea ._cont ._cont-r .represent .declare ._warp {
  display: flex;
  flex-direction: column;
  height: 52px;
}
.academic_cont .idea ._cont ._cont-r .represent .declare ._warp p {
  height: 20px;
  font-size: 20px;
  font-weight: 400;
  color: #1B232E;
  line-height: 20px;
  margin-bottom: 17px;
}
.academic_cont .idea ._cont ._cont-r .represent .declare ._warp span {
  height: 17px;
  font-size: 16px;
  font-weight: 400;
  color: #898E93;
  line-height: 10px;
}
.academic_cont .idea ._cont ._cont-r .course {
  display: flex;
  flex-wrap: wrap;
  height: 126px;
  height: 20px;
  font-size: 14px;
  font-weight: 400;
  color: #FFFFFF;
  line-height: 20px;
  text-align: center;
}
.academic_cont .idea ._cont ._cont-r .course ._item {
  width: 194px;
  height: 53px;
  line-height: 53px;
  background-color: #2E343E;
}
.academic_cont .idea ._cont ._cont-r .course ._item:nth-child(1) {
  margin-right: 20px;
  margin-bottom: 20px;
}
.academic_cont .idea ._cont ._cont-r .course ._item:nth-child(2) {
  margin-bottom: 20px;
  background-color: #E53333;
}
.academic_cont .idea ._cont ._cont-r .course ._item:nth-child(3) {
  margin-right: 20px;
  background-color: #E53333;
}
.academic_cont .recommend {
  height: 1076px;
  background: url(../img/bg_4.png) no-repeat;
  background-size: cover;
  background-position: center center;
}
.academic_cont .recommend .inner {
  width: 1280px;
}
.academic_cont .recommend .title {
  height: 48px;
  font-size: 34px;
  font-weight: 500;
  color: #333333;
  margin: 80px 0 90px 0;
  text-align: center;
  line-height: 48px;
}
.academic_cont .recommend ._cont {
  display: flex;
  width: 1200px;
  height: 450px;
  margin: 0 auto 120px;
}
.academic_cont .recommend ._cont ._cont-l {
  width: 800px;
  height: 450px;
  margin-right: 40px;
}
.academic_cont .recommend ._cont ._cont-l .swiper-wrapper {
  width: 800px;
  height: 450px;
}
.academic_cont .recommend ._cont ._cont-l .swiper-wrapper .swiper-slide {
  height: 450px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
}
.academic_cont .recommend ._cont ._cont-l .swiper-wrapper .swiper-slide img {
  width: 800px;
  height: 100%;
}
.academic_cont .recommend ._cont ._cont-r {
  width: 360px;
}
.academic_cont .recommend ._cont ._cont-r ._item {
  position: relative;
  height: 98px;
  font-size: 20px;
  font-weight: 400;
  color: #FFFFFF;
  line-height: 98px;
  text-align: center;
  background-color: #1B232E;
  margin-bottom: 20px;
  cursor: pointer;
}
.academic_cont .recommend ._cont ._cont-r ._item:hover {
  background-color: #323943;
}
.academic_cont .recommend ._cont ._cont-r ._item i {
  display: none;
  position: absolute;
  top: 50%;
  left: -15px;
  transform: translateY(-50%);
  width: 0;
  height: 0;
}
.academic_cont .recommend ._cont ._cont-r ._item.pitchOn {
  background-color: #E53737;
}
.academic_cont .recommend ._cont ._cont-r ._item.pitchOn i {
  display: block;
  border-top: 10px solid transparent;
  border-right: 15px solid #E53333;
  border-bottom: 10px solid transparent;
}
.academic_cont .recommend ._cont ._cont-r ._item.pitchOn:hover {
  background-color: rgba(229, 55, 55, 0.9);
}
.academic_cont .recommend ._cont ._cont-r ._item.pitchOn:hover i {
  border-right: 15px solid rgba(229, 55, 55, 0.9);
}
.academic_cont .recommend ._bottom p {
  height: 33px;
  font-size: 24px;
  font-weight: 400;
  color: #FFFFFF;
  line-height: 33px;
  text-align: center;
  margin-bottom: 20px;
}
.academic_cont .recommend ._bottom h3 {
  height: 50px;
  font-size: 36px;
  font-weight: 500;
  color: #FFFFFF;
  line-height: 50px;
  text-align: center;
  margin-bottom: 40px;
}
.academic_cont .recommend ._bottom .btn2 {
  width: 183px;
  height: 65px;
  background: #FFFFFF;
  border-radius: 4px 4px 4px 4px;
  font-size: 20px;
  font-weight: 400;
  color: #E53333;
  line-height: 65px;
  text-align: center;
  margin: 0 auto;
  cursor: pointer;
}
.academic_cont .recommend ._bottom .btn2:hover {
  background: #FFF1F1;
}