@media screen and (max-width: 1920px){
  .logo {
    width: 325px;
    height: 53px;
    margin: 30px 0px 0px;
  }
  .menu>li>a {
    font-size: 16px;
  }
}

@media screen and (max-width: 1800px){
  .searchBg {
    width: 170px;
  }
  .menu>li {
    padding: 0px 5px;
  }
  .idx_notice_box .commonWidth {
    width: 100%;
  }
}
@media screen and (max-width: 1650px){
  .logo {
    width: 295px;
  }
}
@media screen and (max-width: 1600px){
  .searchBg .btn1 {
    display: none;
  }
  .searchBg {
    width: 40px;
  }
  .commonWidth {
    width: 100%;
    padding: 0px 15px;
  }
}
@media screen and (max-width: 1500px){
  .menu>li {
    padding: 0px 3px;
  }
  .menu>li>a {
    font-size: 14px;
  }
  .idx_lecture_item {
    width: calc(100% - 750px);
  }
  .idx_lecture_pic_box {
    height: auto;
  }
  .idx_link_information {
    background-size: cover;
  }
  .college_leader_item {
    height: auto;
  }
}
@media screen and (max-width: 1400px){
    .menu {
      display: none;
    }
    .searchBg {
      height: 40px;
      margin-top: 40px;
    }
    .searchBg .btn2 {
      height: 40px;
    }
    .idx_achievement_banner {
      width: 800px;
    }
    .idx_research_box {
      width: calc(100% - 950px);
    }
    .idx_lecture_item {
      width: calc(100% - 650px);
    }
    .student_donation {
      width: 100%;
    }
    .teacher_retired_pic,
    .teacher_retired_item {
      height: auto;
    }
    .teacher_retired_box {
      gap: 0px 30px;
    }
    .teacher_retired_item {
      width: calc((100% / 5));
    }
    .teacher_work_box {
      gap: 40px 0px;
    }
}
@media screen and (max-width: 1200px){
    .idx_achievement_banner {
      width: 700px;
    }
    .idx_research_box {
      width: calc(100% - 850px);
    }
    .idx_lecture_pic {
      width: calc(100% - 550px);
    }
    .college_contact_number {
      padding: 60px 40px;
    }
    .research_institution_cont {
      padding: 30px 30px;
    }
    .research_institution_cont>span:nth-child(2n) {
      margin-left: 0px;
      margin-top: 20px;
    }
    .student_list_directory_year>a {
      width: calc((100% / 10) - 10px);
    }

}
@media screen and (max-width: 1400px){
  .headerbtn_bar {
    display: block;
  }
  .masking {
    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 {
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1001;
  }
  .iphone_nav {
    position: fixed;
    display: block;
    top: 0;
    left: 0;
    width: 20%;
    height: 100%;
    margin-left: -50%;
    transition: all 0.6s ease  0.2s;;
    -webkit-transition: all 0.6s ease  0.2s;
    -moz-transition: all 0.6s ease  0.2s;
    -ms-transition: all 0.6s ease  0.2s;
    -o-transition: all 0.6s ease  0.2s;
    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;
    -moz-transition: all 0.6s ease  0.2s;
    -ms-transition: all 0.6s ease  0.2s;
    -o-transition: all 0.6s ease  0.2s;
  }
  .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;
  }
}
@media screen and (max-width: 1000px){
  .logo {
    margin-bottom: 30px;
  }
  .iphone_nav {
    width: 50%;
  }
  .headerBg {
    height: auto;
  }
  .searchBg,
  .language,
  .anniversary_btn {
    display: none;
  }
  .headerbtn_bar {
    margin-right: 0px;
    margin-top: 35px;
  }
  .idx_notice_box {
    transform: translateY(0px);
    -webkit-transform: translateY(0px);
    -moz-transform: translateY(0px);
    -ms-transform: translateY(0px);
    margin-top: 30px;
  }
  .idx_notice {
    height: auto;
    padding: 0px 30px;
    background-size: cover;
  }
  .idc_notice_title>h3,
  .commonTitle_text>h3 {
    font-size: 22px;
    line-height: 40px;
  }
  .idx_notice_list,
  .idx_news_list,
  .idx_lecture_item,
  .idx_lecture_pic,
  .idx_achievement_cont,
  .idx_research_box,
  .idx_achievement_banner,
  .idx_student_item_first,
  .idx_student_item_sec,
  .idx_link_item,
  .footer_nav,
  .footer_logo {
    width: 100%;
  }
  .idx_notice_list>a>h3 {
    font-size: 18px;
  }
  .idx_news_item {
    margin-top: 30px;
    flex-wrap: wrap;
  }
  .research_box {
    margin-top: 30px;
    padding: 30px 0px;
  }
  .idx_lecture_box,
  .idx_achiev_flex,
  .idx_student_itme,
  .idx_link_box,
  .footer_box {
    flex-wrap: wrap;
  }
  .idx_lecture_list {
    margin-top: 30px;
  }
  .idx_lecture_list_first_time,
  .idx_achievement_list_first_time {
    text-align: center;
  }
  .idx_lecture_list_first_time>span,
  .idx_achievement_list_first_time>span {
    font-size: 16px;
  }
  .idx_lecture_list_first_time>span+span,
  .idx_achievement_list_first_time>span+span {
    font-size: 20px;
  }
  .idx_lecture_list_first>a>h3 {
    font-size: 18px;
  }
  .idx_lecture_pic_title {
    float: none;
    margin: 20px auto 0px;
  }
  .idx_lecture_pic_title>h3,
  .idx_achievement_title>h3 {
    font-size: 20px;
  }
  .idx_achievement_box {
    margin-top: 40px;
  }
  #certify .swiper-slide {
    width: 330px;
    height: 470px;
  }
  #certify .swiper-container {
    padding-bottom: 30px;
  }
  .idx_research_pic {
    height: auto;
    margin-bottom: 40px;
  }
  .idx_student_banner {
    margin-top: 40px;
  }
  .idx_student_list {
    width: calc((100% / 2) - 10px);
  }
  .idx_student_item_sec {
    margin-top: 30px;
    gap: 20px;
  }
  .idx_student_list + .idx_student_list + .idx_student_list + .idx_student_list {
    transform: translateY(0);
    -webkit-transform: translateY(0);
    -moz-transform: translateY(0);
    -ms-transform: translateY(0);
  }
  .idx_student_list_text {
    width: 100%;
    float: none;
  }
  
  .swiperidx_student,
  .footer_menu {
    display: none;
  }
  .idx_link_list_item,
  .idx_link_big_item,
  .footer_logo {
    height: auto;
  }
  .idx_link_information {
    width: 100%;
    margin-top: 20px;
    padding: 30px 20px 20px 20px;
  }
  .idx_link_info_top_list {
    width: calc((100% / 3) - 10px);
  }
  .idx_link_info_list>a>h3 {
    font-size: 16px;
  }
  .idx_link_bg {
    padding: 60px 0px 40px;
  }
  .footer_code {
    margin-top: 30px;
    width: 100%;
    display: flex;
    justify-content: space-between;
  }
  .seven_year_link {
    float: none;
  }
  .commonMain {
    padding-bottom: 40px;
  }
  .commonMain,
  .commonRightTitle,
  .college_contact_box,
  .introductionCont,
  .college_leader_box,
  .news_item>a,
  .news_item_title,
  .research_news_item>a,
  .student_list_directory_title,
  .teacher_article_info {
    flex-wrap: wrap;
  }
  .commonNavLeft {
    display: none;
  }
  .commonRight,
  .college_contact_left,
  .college_contact_right,
  .introductionContText,
  .introductionContPic,
  .news_item_pic,
  .news_item_text,
  .news_item_title>h3,
  .research_news_item_pic,
  .teacher_article_text {
    width: 100%;
  }
  .college_leader_item {
    width: calc((100% / 2) - 10px);
  }
  .college_leader_item>a {
    flex-wrap: wrap;
    padding: 10px;
    align-content: flex-start;
  }
  .college_leader_item_pic,
  .college_leader_item_text {
    width: 100%;
  }
  .commonRightTitle>h3 {
    font-size: 20px;
  }
  .college_leader_item_text>h3 {
    margin-top: 10px;
    margin-bottom: 10px;
    font-size: 16px;
  }
  .location {
    padding: 0px;
    width: 100%;
    text-align: left;
  }
  .centerBg {
    height: 200px;
  }
  .college_contact_number {
    padding: 30px 30px;
  }
  .introductionContPic,
  .news_item_pic,
  .research_news_item_pic,
  .teacher_article_info {
    height: auto;
  }
  .college_contact_logo {
    padding: 30px 0px;
  }
  .news_item_pic>img {
    display: block;
    width: 100%;
    margin: 0 auto;
  }
  .news_item_title {
    font-size: 18px;
  }
  .research_institution {
    column-count: 1;
  }
  .research_news_item_pic>img,
  .student_donation_logo>img {
    display: block;
    width: 100%;
  }
  .research_news_item_text {
    width: 100%;
  }
  .research_news_item_title>h3 {
    height: auto;
  }
  .research_news_item>a {
    padding: 20px 20px;
  }
  .student_donation_logo {
    width: 100%;
    height: auto;
  }
  .student_donation_introduction a {
    display: block;
    width: 100%;
  }
  .student_donation_introduction a+a {
    margin-left: 0px;
    margin-top: 10px;
  }
  .student_list_slogan,
  .student_photo_list,
  .student_photo_cont>img {
    width: 100%;
  }
  .student_list_slogan>h4>span+span {
    font-size: 14px;
  }
  .student_list_directory_title>a {
    width: calc((100% / 2) - 10px);
  }
  .student_list_directory_year>a {
    width: calc((100% / 4) - 10px);
  }
  .student_list_directory_cont>a {
    width: calc(100% / 4);
  }
  .student_photo_title {
    width: 100%;
    float: none;
  }
  .student_photo_cont,
  .student_photo_list:nth-child(2n) .student_photo_cont {
    background: transparent;
  }
  .student_photo_list:nth-child(2n) {
    margin-top: 20px;
  }
  .student_photo_list:nth-child(2n) .student_photo_title {
    float: none;
    text-align: left;
  }
  .student_photo_list:nth-child(2n) .student_photo_title:after {
    transform: rotate(0deg);
  }
  .student_photo_list:nth-child(2n) {
    transform: translateX(0);
    -webkit-transform: translateX(0);
    -moz-transform: translateX(0);
    -ms-transform: translateX(0);
  }
  .student_photo_list:nth-child(2n) .student_photo_cont>img {
    margin-left: 0px;
  }
  .student_photo_list:nth-child(2n+3) {
    margin-top: 20px;
  }
  .student_style_item {
    width: 100%;
    height: auto;
  }
  .student_style_item+.student_style_item+.student_style_item+.student_style_item {
    margin-top: 0px;
  }
  .teacher_retired_item {
    width: calc((100% / 2) - 0px);
  }
  .teacher_retired_box {
    gap: 0px 0px;
  }
  .teacher_retired_pic,
  .teacher_retired_item {
    height: auto;
  }
  .teacher_article_pic {
    transform: translateY(0px);
    margin: 0 auto;
  }
  .teacher_article_text>h3 {
    font-size: 20px;
  }
  .teacher_article_text>h3>span {
    font-size: 16px;
  }
  .teacher_article_text {
    padding-top: 10px;
  }
  .teacher_article_pro>span {
    height: auto;
    overflow: inherit;
  }
  .teacher_cont_box {
    margin-top: 110px;
  }
  .teacher_detail {
    padding: 20px;
  }
  .teacher_work_item {
    width: 100%;
    height: auto;
  }
  .idx_student_item_first {
    height: 320px;
  }
  .idx_student_list {
    height: 200px;
  }
}