@media (max-width: 1200px) {
  main .index-banner {
    height: auto;
  }
  main .index-banner .swiper-slide img {
    height: 60vw;
  }
}

@media (max-width: 991px) {

  .nav-se {
    position: fixed;
  }
  .header-pc {
    display: none;
  }
  .header-mp {
    position: fixed;
    top: 0;
    z-index: 101;
    display: block;
    width: 100%;
    height: 60px;
    background: #004488;
    line-height: 60px;
  }
  .header-mp .header-mp-right {
    text-align: right;
    white-space: nowrap;
    position: relative;
    z-index: 102;
  }
  .header-mp .header-mp-right .ham {
    width: 18px;
    height: 18px;
    font-size: 18px;
    margin-top: -5px;
  }
  .header-mp .header-mp-right .english {
    display: none;
    margin-right: 10px;
  }
  .header-mp .header-mp-right .english span {
    opacity: 0.7;
    font-family: NotoSans-Regular;
    font-size: 14px;
    color: #ffffff;
    letter-spacing: 0;
    line-height: 28px;
  }
  .header-mp .header-mp-right .english i {
    color: #ffffff;
    font-size: 20px;
    padding-right: 8px;
  }
  .header-mp .logo:hover img {
    transform: unset;
  }
  .header-mp .logo img {
    width: 131px;
    height: 33px;
  }
  .header-mp .header-mp-nav {
    position: fixed;
    top: 60px;
    width: 100vw;
    height: 100vh;
    left: 0;
    pointer-events: none;
    z-index: 101;
  }
  .header-mp .header-mp-nav .main {
    position: relative;
    top: -100%;
    overflow: hidden;
    transition: top 0.3s cubic-bezier(0, 0.55, 0.45, 1);
    background-color: #004488;
    height: 0;
    border: 0;
    max-height: calc(100vh - 60px);
    overflow: auto;
    height: auto;
  }
  .header-mp .header-mp-nav .main .main-top {
    height: auto;
    border-top: 1px solid #979797;
    border-bottom: 1px solid #979797;
  }
  .header-mp .header-mp-nav .main .main-bottom div a {
    height: 70px;
    line-height: 70px;
    display: block;
    text-align: center;
    opacity: 0.7;
    font-family: PingFangSC-Regular;
    font-size: 14px;
    color: #ffffff;
    letter-spacing: 0;
  }
  .header-mp .header-mp-nav.active {
    pointer-events: painted;
    background: rgba(0, 0, 0, 0.65);
  }
  .header-mp .header-mp-nav.active .main {
    top: 0px;
  }
  .header-mp .search {
    position: relative;
    margin-top: 10px;
  }
  .header-mp .search i {
    position: absolute;
    color: #999;
    right: 15px;
  }
  .header-mp .search input {
    width: 100%;
    height: 36px;
    opacity: 0.7;
    border: 1px solid #ffffff;
    border-radius: 2px;
    background: transparent;
    outline: none;
    color: white;
    line-height: 36px;
    padding-left: 15px;
    padding-right: 40px;
  }
  .header-mp .header-mp-nav-top {
    height: 28px;
    width: 100%;
    /* overflow: hidden; */
    line-height: 28px;
    text-align: justify;
    margin-bottom: 46px;
    position: relative;
  }
  .header-mp .header-mp-nav-top::after {
    width: 100%;
    content: "";
    display: inline-block;
    overflow: hidden;
    height: 0;
  }
  .header-mp .header-mp-nav-top>a {
    display: inline-block;
    opacity: 0.7;
    font-family: MicrosoftYaHei;
    font-size: 12px;
    color: #ffffff;
    letter-spacing: 0;
    line-height: 28px;
  }
  .header-mp .header-mp-nav-bottom {
    margin-bottom: 35px;
  }
  .header-mp .header-mp-nav-bottom li > div {
    font-family: MicrosoftYaHei;
    font-size: 16px;
    color: #ffffff;
    letter-spacing: 0;
    line-height: 28px;
    margin-bottom: 30px;
    text-align: center;
  }
  .header-mp .secondaryNavigation-mp {
    background: #05305b;
    width: 100vw;
    margin-left: -15px;
    clear: both;
    overflow: hidden;
    transition: height 0.3s linear;
    height: auto;
    margin-bottom: 30px !important;
    margin-top: -10px;
    padding-top: 20px;
    padding-bottom: 20px;
    padding-left: 30px;
    padding-right: 30px;
  }
  .header-mp .secondaryNavigation-mp>a {
    float: left;
    margin-bottom: 10px;
    display: inline-block;
    width: 50%;
    font-size: 14px;
    color: white !important;
  }
  main {
    margin-top: 60px;
  }
  main .sdnu-news .news-box img {
    height: 18vw;
  }
  main .comprehensive-news .col-md-4 {
    margin-top: 42px;
    width: 100vw;
    left: -5.5%;
    padding-top: 56px;
    padding-left: calc(5.5% + 15px);
    padding-right: calc(5.5% + 15px);
  }
  main .comprehensive-news .col-md-4::after {
    display: block;
    content: "";
    position: absolute;
    width: 100%;
    height: 560px;
    top: 0;
    left: 0;
    z-index: -1;
    background-image: url(../img/bg1.png);
    background-repeat: no-repeat;
    background-size: cover;
  }
  main .comprehensive-news .comprehensive-news-top .row div a {
    height: 32vw;
  }
  main .comprehensive-news .comprehensive-news-top .row div img {
    height: 32vw;
  }
  main .person-sdnu .container::after {
    left: -45px;
    top: 100px;
    height: calc(130vw + 1800px);
  }
  main .person-sdnu .person-sdnu-swiper {
    height: 50vw;
    margin-bottom: 50px;
  }
  main .person-sdnu .person-sdnu-swiper .photo {
    height: 42vw;
  }
  main .person-sdnu .person-sdnu-swiper .photo img {
    height: 42vw;
  }
  main .beautiful-sdnu {
    position: relative;
    margin-top: 169px;
  }
  main .beautiful-sdnu .cover p {
    margin-top: 50%;
  }
  main .beautiful-sdnu .two p {
    margin-top: 50%;
  }
  main .beautiful-sdnu .beautiful-sdnu-left {
    height: auto;
  }
  main .beautiful-sdnu .beautiful-sdnu-left a {
    width: 100%;
    margin-left: 0;
    position: relative;
    height: calc(100vw - 30px);
  }
  main .beautiful-sdnu .beautiful-sdnu-left .content {
    bottom: 100px;
  }
  main .beautiful-sdnu .beautiful-sdnu-left img {
    min-height: unset;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: auto;
    object-fit: contain;
  }
  main .beautiful-sdnu .beautiful-sdnu-right {
    padding-left: 15px;
  }
  main .beautiful-sdnu .beautiful-sdnu-right .title {
    width: calc(100% - 30px);
  }
  main .beautiful-sdnu .beautiful-sdnu-right .more {
    float: right !important;
  }
  main .beautiful-sdnu .beautiful-sdnu-right .title {
    position: absolute;
    top: calc(-100vw + -66px);
    padding-left: 0;
    left: 15px;
  }
  main .beautiful-sdnu .beautiful-sdnu-right .beautiful-sdnu-item {
    height: calc(50vw - 15px);
  }
  main .web-special-item img {
    width: 100%;
    height: auto;
  }
  footer {
    overflow: hidden;
  }
  footer .footer-top {
    height: auto;
  }
  footer .footer-top .footer-top-left {
    margin-bottom: 40px;
  }
  footer .footer-top .footer-top-right {
    padding: 0 35px;
  }
  footer .footer-top .footer-top-right .row > :last-child {
    white-space: unset;
    display: block;
    text-align: justify;
    padding-right: 15px;
    margin-top: 30px;
  }
  footer .footer-top .footer-top-right .row > :last-child::after {
    display: inline-block;
    content: "";
    width: 100%;
  }
  footer .footer-top .footer-top-right .row > :last-child .linkTo {
    display: inline-block;
  }
  footer .footer-top .footer-top-right .row > :last-child .linkTo:first-child .code {
    left: 0;
  }
  footer .footer-bottom {
    opacity: 0.55;
    font-family: MicrosoftYaHei;
    font-size: 14px;
    color: #333333;
    letter-spacing: 0;
    line-height: 24px;
    text-align: center;
  }
  footer .footer-bottom span {
    display: block;
  }
  footer .footer-bottom .footer-bottom-left {
    margin-top: 30px;
    margin-bottom: 12px;
  }
  footer .footer-bottom .footer-bottom-right {
    text-align: center;
    margin-bottom: 36px;
  }
  .main-content {
    position: static !important;
    padding-top: 0;
  }

}

@media (max-width: 767px) {
  main .index-banner .swiper-slide .container h3 {
    bottom: 10px;
    font-size: 22px;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }
  main .index-banner > .container {
    width: 100%;
  }
  main .index-banner > .container .swiper-pagination {
    right: unset;
    left: 50%;
    width: max-content;
    transform: translateX(-50%);
  }
  main .index-banner > .container .swiper-pagination span:first-child {
    margin-left: 0;
  }
  main .sdnu-news .news-swiper {
    margin-top: 0;
  }
  main .sdnu-news .container {
    height: unset;
  }
  main .sdnu-news .news-swiper-item {
    width: calc(100% - 30px);
    margin-left: 15px;
    position: relative;
    height: auto;
    overflow: hidden;
    padding-top: 38px;
    padding-left: 10px;
    padding-right: 10px;
    padding-bottom: 14px;
  }
  main .sdnu-news .news-swiper-item .news-swiper-content {
    line-height: 24px;
    -webkit-line-clamp: 2 !important;
    width: unset;
  }
  main .sdnu-news .news-swiper-item .time {
    position: absolute;
    line-height: 1;
    top: 12px;
    left: 10px;
  }
  main .sdnu-news .news-box {
    margin-bottom: 91px;
  }
  main .sdnu-news .news-box .news-box-content {
    width: calc(100% - 60px);
    left: 30px;
  }
  main .sdnu-news .news-box:last-child {
    margin-bottom: 60px;
  }
  main .sdnu-news .news-box img {
    height: 55vw;
  }
  main .comprehensive-news::after {
    height: 560px;
  }
  main .comprehensive-news .comprehensive-news-top .row div a {
    height: 60vw;
    margin-bottom: 27px;
  }
  main .comprehensive-news .comprehensive-news-top .row div img {
    height: 60vw;
  }
  main .comprehensive-news .col-md-4 {
    margin-top: 42px;
    padding-top: 56px;
    left: 0;
    padding-left: 15px;
    padding-right: 15px;
  }
  main .comprehensive-news .col-md-4::after {
    display: block;
    content: "";
    position: absolute;
    width: 100%;
    height: 560px;
    top: 0;
    left: 0;
    z-index: -1;
    background-image: url(../img/bg1.png);
    background-repeat: no-repeat;
    background-size: cover;
  }
  main .academic-sdnu .academic-sdnu-main > div {
    margin-top: 56px !important;
  }
  main .academic-sdnu .academic-sdnu-main > div:first-child {
    margin-top: 30px !important;
  }
  main .person-sdnu .max {
    padding-left: 0;
    padding-right: 0;
  }
  main .person-sdnu .person-sdnu-swiper {
    height: calc(60vw + 105px);
  }
  main .person-sdnu .person-sdnu-swiper .photo {
    height: auto;
  }
  main .person-sdnu .person-sdnu-swiper .photo img {
    height: 60vw;
  }
  main .person-sdnu .person-sdnu-swiper .content {
    width: calc(100% - 30px);
    position: static;
    margin-left: 15px;
    margin-top: -15px;
    position: relative;
    bottom: 0;
    left: 0;
    z-index: 10;
    height: 100px;
    background: #ffffff;
    box-shadow: 0 2px 10px 0 rgba(0, 0, 0, 0.13);
    padding-top: 19px;
    padding-left: 15px;
  }
  main .person-sdnu .person-sdnu-swiper .content p {
    opacity: 0.8;
    font-family: MicrosoftYaHei;
    font-size: 14px;
    color: #333333;
    letter-spacing: 0;
    line-height: 28px;
  }
  main .person-sdnu .person-sdnu-swiper .content h3 {
    font-family: MicrosoftYaHei;
    font-size: 16px;
    color: #333333;
    letter-spacing: 0;
    line-height: 36px;
  }
  main .person-sdnu .person-sdnu-swiper .swiper-button-prev,
  main .person-sdnu .person-sdnu-swiper .swiper-button-next {
    top: calc((60vw - 70px) / 2);
  }
  main .person-sdnu .person-sdnu-item {
    padding-left: 15px;
    padding-right: 15px;
    background: #ffffff;
    box-shadow: 0 2px 10px 0 rgba(0, 0, 0, 0.13);
    margin-top: 20px;
    margin-bottom: 0;
  }
  main .person-sdnu .person-sdnu-item:nth-child(2) {
    margin-top: 0;
  }
  main .person-sdnu .person-sdnu-item .photo {
    display: none;
  }
  main .person-sdnu .person-sdnu-item h3 {
    font-family: MicrosoftYaHei;
    font-size: 16px;
    color: #333333;
    letter-spacing: 0;
    line-height: 28px;
  }
  main .person-sdnu .person-sdnu-item p {
    opacity: 0.8;
    font-family: MicrosoftYaHei;
    font-size: 14px;
    color: #333333;
    letter-spacing: 0;
    line-height: 28px;
  }
  main .person-sdnu .container::after {
    left: 0;
    top: 83px;
    height: calc(230vw + 760px);
  }
  main .beautiful-sdnu {
    position: relative;
    margin-top: 169px;
  }
  main .beautiful-sdnu .cover p {
    margin-top: 40%;
  }
  main .beautiful-sdnu .two p {
    margin-top: 40%;
  }
  main .beautiful-sdnu .beautiful-sdnu-left {
    height: auto;
  }
  main .beautiful-sdnu .beautiful-sdnu-left a {
    width: 100%;
    margin-left: 0;
    position: relative;
    height: calc(100vw - 30px);
  }
  main .beautiful-sdnu .beautiful-sdnu-left img {
    min-height: unset;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: auto;
    object-fit: contain;
  }
  main .beautiful-sdnu .beautiful-sdnu-right {
    padding-left: 15px;
  }
  main .beautiful-sdnu .beautiful-sdnu-right .title {
    width: calc(100% - 30px);
  }
  main .beautiful-sdnu .beautiful-sdnu-right .more {
    float: right !important;
  }
  main .beautiful-sdnu .beautiful-sdnu-right .title {
    position: absolute;
    top: calc(-100vw + -66px);
    padding-left: 0;
    left: 15px;
  }
  main .beautiful-sdnu .beautiful-sdnu-right .beautiful-sdnu-item {
    height: calc(50vw - 15px);
  }
  main .web-special {
    margin-top: 90px;
  }
  main .web-special .icon {
    float: left;
    margin-right: 13px;
  }
  main .web-special .title {
    margin-bottom: 20px;
  }
  main .web-special .web-special-item {
    width: 100%;
    height: 30vw;
  }
  main .web-special .web-special-item .content {
    width: 60px;
    top: 50%;
    transform: translateY(-50%);
  }
  main .web-special .web-special-item .content span {
    width: 30px;
    height: 30px;
    font-family: NotoSerifCJKsc-Bold;
    font-size: 18px;
    color: #ffffff;
    letter-spacing: 9.61px;
    line-height: 30px;
  }
  main .web-special .web-special-item img {
    width: 100%;
    height: 100%;
  }
  main .web-special .title-left .title-text {
    margin-top: 10px !important;
    margin-bottom: 0 !important;
  }
  main .web-special .more {
    height: unset !important;
  }
  main .web-special .more span {
    display: inline-block;
  }
  main .web-special .more .line {
    left: 73px;
    top: 50%;
  }
  main .web-special .more i {
    position: static;
  }
  .title {
    margin-bottom: 35px;
    white-space: nowrap;
  }
  .title .title-left .title-text {
    font-family: NotoSerifCJKsc-Bold;
    font-size: 24px;
    color: #333333;
    letter-spacing: 0;
    margin-left: 13px;
    margin-right: 0;
  }
  .more {
    margin-top: 15px;
    float: right !important;
  }
  .recruitment {
    display: none;
  }
  .web-special .title {
    max-width: 100%;
  }
}

@media (max-width: 991px) and (min-width: 768px) {
  .header-mp .secondaryNavigation-mp {
    margin-left: -8%;
  }
}

@media (min-width: 992px) {
  main .index-banner .swiper-slide img {
    height: 100vh;
  }
}