@media screen and (max-width: 1550px){
  .commonWidth {
    width: 1400px;
  }
  .achievementLeftPic {
    padding-bottom: 73%;
    height: 0;
  }
  .swiperBanner .swiper_img>a>h3 {
    margin-left: calc(-1550px / 2);
  }
}
@media screen and (max-width: 1400px){
  .commonWidth {
    width: 1300px;
  }
  .swiperBanner .swiper_img>a>h3 {
    margin-left: calc(-1300px / 2);
  }
  .menu>li {
    padding: 0 17px;
  }
}
@media screen and (max-width: 1300px){
  .commonWidth {
    width: 1200px;
  }
  .swiperBanner .swiper_img>a>h3 {
    margin-left: calc(-1200px / 2);
  }
  .menu>li {
    padding: 0 13px;
  }
  .headerBtn {
    margin-left: 20px;
  }
  .achievementBottom>ul>li {
    height: auto;
    display: block;
  }
  .achievementBottom>ul>li>a {
    display: block;
    width: 100%;
  }
  .achievementBottom>ul>li+li {
    padding-top: 10px;
  }
  .achievementBottom>ul>li>span {
    width: 100%;
    padding-left: 50px;
    line-height: 25px;
  }
  .achievementBottom>ul>li:hover {
    border-bottom: 1px solid rgba(146, 44, 56, 1);
    background: url(../images/icon_video_bg_h.png) no-repeat 0px / cover;
  }
}
@media screen and (max-width: 1200px){
  .commonWidth {
    width: 100%;
    padding: 0px 15px;
  }
  .swiperBanner .swiper_img>a>h3 {
    margin-left: calc(-100% / 2);
  }
  .logo {
    width: 280px;
    height: auto;
  }
  .menu>li {
    padding: 0 5px;
  }
  .headerBtn {
    margin-left: 10px;
  }
  
}
@media screen and (max-width: 1150px){
  .headerbtn_bar {
    display: block;
  }
  .masking {
    display: none;
    height: 100%;
    width: 100%;
    position: fixed;
    top: 0;
    right: 0;
    background-color: transparent;
    transition: all 0.5s ease 0.2s;
    z-index: -1;
  }
  .masking.focus {
    display: block;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1001;
  }
  .iphone_nav {
    position: fixed;
    display: block;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    margin-left: -50%;
    transition: all 0.6s ease  0.2s;;
    -webkit-transition: all 0.6s ease  0.2s;/*谷歌和safari*/
    -moz-transition: all 0.6s ease  0.2s;/*火狐*/
    -ms-transition: all 0.6s ease  0.2s;/*ie*/
    -o-transition: all 0.6s ease  0.2s;/*opera*/
    z-index: 999999;
  }
  .iphone-box {
    background-color: rgba(255, 255, 255, 0.98);
    width: 100%;
    height: 100%;
    text-align: center;
    line-height: 46px;
    padding-top: 80px;
    transition: all 0.6s ease  0.2s;;
    -webkit-transition: all 0.6s ease  0.2s;/*谷歌和safari*/
    -moz-transition: all 0.6s ease  0.2s;/*火狐*/
    -ms-transition: all 0.6s ease  0.2s;/*ie*/
    -o-transition: all 0.6s ease  0.2s;/*opera*/
  }
  .iphone-box>ul>li>a {
    display: block;
    font-size: 14px;
    color: #000000;
    line-height: 40px;
   font-family:"Libre";
  }
  .iphone-box .active>a {
    color: #7C3030;
  }
  .iphone-box>ul>li>a>i {
    height: 46px;
    width: 16px;
    padding-left: 8px;
    box-sizing: content-box;
    display: inline-block;
    background: url(../images/phone_more.png) no-repeat right center;
    vertical-align: middle;
  }
  .iphone-box>ul>li>ul {
    display: none;
    padding-bottom: 10px;
  }
  .iphone-box>ul>li>ul>li>a {
    display: block;
   font-family:"Libre";
    font-size: 14px;
    color: #000;
    line-height: 30px;
  }
  .iphone-box>ul>li>ul>li>a strong {
    font-weight: normal !important;
  }
  .iphone_nav.focus {
    margin-left: 0;
    display: block !important;
  }
  .banner, .swiperBanner {
    height: 220px;
  }
  .header {
    padding-bottom: 10px;
  }
  .menu,
  .icon_douyin,
  .icon_wechat,
  .icon_weibo,
  .swiperIdxpaga,
  .swiperInterviewPrev,
  .swiperInterviewNext {
    display: none;
  }
  .idxInfoBox {
    margin-top: 30px;
  }
  .swiperBanner .swiper_img>a>h3 {
    display: none;
    width: 100%;
    left: 0px;
    margin-left: 0px;
    font-size: 28px;
    line-height: 39px;
    text-stroke: 1px transparent;
    -webkit-text-stroke: 1px transparent;
  }
  .idxInfoItem>a:after {
    width: 35px;
    height: 35px;
    border-radius: 30px;
  }
  .idxFastInfo {
    flex-wrap: wrap;
  }
  .idxInfoItem {
    width: 50%;
  }
  .idxNewsBox {
    margin-top: 50px;
  }
  .commonTitleCont>span {
    font-size: 22px;
  }
  .commonMore {
    width: 115px;
    text-indent: 15px;
  }
  .idxNewsCont {
    flex-wrap: wrap;
    margin-top: 30px;
  }
  .idxNewsBanner, .swiperInterview {
    width: 100%;
    height: 280px;
  }
  .idxNewsItem {
    width: 100%;
    margin-top: 30px;
  }
  .idxNewsItemList>a {
    flex-wrap: wrap;
  }
  .idxNewsItemListTime {
    width: calc(100% - 80%);
  }
  .idxNewsItemTitle {
    width: calc(100% - 20%);
  }
  .idxNewsItemPic {
    margin-top: 20px;
  }
  .idxNoticeBox,
  .idxNoticeCont {
    margin-top: 50px;
  }
  .idxNoticeBox {
    padding-bottom: 70px;
  }
  .idxNoticeItem {
    width: calc(100% - 51%);
  }
  .idxNoticeItem + .idxNoticeItem + .idxNoticeItem + .idxNoticeItem,
  .idxNoticeItem + .idxNoticeItem + .idxNoticeItem {
    margin-top: 30px;
  }
  .idxNoticeItem>a {
    flex-wrap: wrap;
  }
  .idxNoticeItemTime {
    width: calc(100% - 80%);
  }
  .idxNoticeItemTitle {
    width: 100%;
  }
  .idxNoticeItemTitle>h3 {
    font-size: 16px;
  }
  .idxStudent {
    margin-top: 50px;
  }
  .idxStudentBg {
    height: auto;
    background: url(../images/idxStudentBg.png) no-repeat 0px / cover;
    border-radius: 15px;
    padding-bottom: 30px;
  }
  .idxStudentBg>h3 {
    font-size: 26px;
    text-stroke: 2px transparent;
    text-align: center;
    -webkit-text-stroke: 2px transparent;
    line-height: 39px;
    padding-top: 30px;
  }
  .idxStudentBg>a {
    margin-top: 20px;
  }
  .foot {
    flex-wrap: wrap;
  }
  .footerLeft {
    width: 100%;
  }
  .footLogo {
    width: 355px;
    overflow: hidden;
  }
  .footerCenter {
    width: 100%;
  }
  .footerRight {
    width: 100%;
    margin-top: 20px;
  }
  .copyright {
    margin-top: 10px;
  }
  .centerBg {
    height: 220px;
  }
  .location>h3 {
    font-size: 22px;
    margin-top: 10px;
  }
  .commonNavLeft {
    display: none;
  }
  .achievement {
    width: 100%;
  }
  .achievementHeader {
    flex-wrap: wrap;
  }
  .achievementLeft {
    width: 100%;
  }
  .achievementLeftPic {
    padding-bottom: 65%;
  }
  .achievementText,
  .teacher_studentText {
    padding: 130px 20px 0px 20px;
  }
  .achievementText:after {
    right: 20px;
  }
  .achievementText>h3,
  .teacher_studentText>h3 {
    max-width: 70%;
  }
  .achievementRight {
    width: 100%;
    margin-top: 30px;
  }
  .achievementBottom {
    width: 100%;
    margin-top: 30px;
  }
  .achievementBottom>ul>li {
    width: 100%;
  }
  .commonRight {
    width: 100%;
    padding: 30px 20px 50px 20px;
  }
  .article_title h3,
  .introduction h3 {
    font-size: 22px;
  }
  .teacherNav {
    width: 100%;
    flex-wrap: wrap;
    justify-content: center;
    border: 0px;
  }
  .teacherList:before {
    display: none;
  }
  .teahcerListCont:nth-child(odd),
  .teahcerListCont:nth-child(even) {
    width: 100%;
    float: none;
  }
  .teahcerListCont:nth-child(even) {
    margin-top: 30px;
    background: url(../images/icon_teacher_title_bg.png) no-repeat left 12px;
  }
  .teahcerListCont:nth-child(even)>a>span,
  .teahcerListCont:nth-child(even)>a>h3,
  .teahcerListCont:nth-child(even)>a>p {
    text-align: left;
  }
  .teahcerListCont + .teahcerListCont {
    border-top: 1px solid rgba(0, 0, 0, 0.15);
    padding-top: 20px;
    background: url(../images/icon_teacher_title_bg.png) no-repeat left 32px;
  }
  .teacherListContPicleft,
  .teacherListContPicRight_small,
  .basePic .teacherListContPicleft,
  .basePic .teacherListContPicRight_small {
    height: auto;
  }
  .basePic .teacherListContPicRight {
    margin-top: 20px;
  }
  .basePic .teacherListContPicRight {
    flex-wrap: wrap;
  }
  .basePic .teacherListContPicRight_small {
    width: 100%;
  }
  .basePic .teacherListContPicRight_small+.teacherListContPicRight_small {
    margin-top: 20px;
  }
  .teacherBox {
    margin-top: 30px;
  }
  .teacherNav>div>a {
    background-color: #ffffff !important;
    color: #000000 !important;
  }
  .baseCont {
    margin-top: 30px;
    flex-wrap: wrap;
  }
  .baseInfo,
  .basePic {
    width: 100%;
  }
  .searchBg {
    margin-right: 10px;
  }
  .teacher_list {
    width: 100%;
  }
  .teacher_list_pic {
    width: 150px;
    height: auto;
  }
  .teacher_list_text {
    width: calc(100% - 180px);
  }
  .teacher_list_text h3 {
    font-size: 18px;
  }
  .teacher_list+.teacher_list {
    margin-top: 30px;
  }
  .letter_idx {
    flex-wrap: wrap;
  }
  .swiperTeacher {
    height: 230px;
  }
}