@media screen and (max-width: 768px) {
    .nav_flex {
        width: 100% !important;
        padding: 0.1rem 0.12rem !important;
        box-sizing: border-box;
    }
    .nav_flex_img {
        width: 1.2rem !important;
        height: auto !important;
    }
    .nav_flex_text {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #fff;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        z-index: 100;
        max-height: 80vh;
        overflow-y: auto;
    }
    .nav_flex_text.active {
        display: block;
    }
    .nav_flex_text ul {
        flex-direction: column;
        padding: 0.1rem 0;
    }
    .nav_flex_text ul li {
        margin-left: 0 !important;
        padding: 0.12rem 0.2rem;
        border-bottom: 1px solid #eee;
    }
    .nav_div1 {
        justify-content: space-between;
    }
    .nav_div1 img {
        transform: rotate(0deg) !important;
    }
    .nav_div2 {
        position: static !important;
        width: 100% !important;
        background: #f7f8fa !important;
        border-radius: 4px !important;
        margin-top: 0.08rem;
        padding: 0.05rem 0;
    }
    .nav-hamburger {
        display: flex !important;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        width: 0.36rem;
        height: 0.36rem;
        cursor: pointer;
        margin-left: auto;
        z-index: 101;
        gap: 5px;
    }
    .nav-hamburger span {
        display: block;
        width: 0.24rem;
        height: 2px;
        background: rgb(0,46,89);
        border-radius: 2px;
        transition: 0.3s;
    }
    .nav-hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .nav-hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    .nav-hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    .footer {
        flex-direction: column !important;
        height: auto !important;
        padding-bottom: 0.2rem;
    }
    .footer_zhanwei {
        height: 0.5rem !important;
    }
    .signUp {
        width: 100% !important;
        max-width: 100% !important;
        margin-top: -0.3rem !important;
        right: 0 !important;
        height: auto !important;
        padding-bottom: 0.2rem;
    }
    .signUp form {
        width: 90% !important;
        position: static !important;
        transform: none !important;
        margin: 0 auto;
        padding-top: 0.2rem;
    }
    .signUp_input {
        flex-direction: column;
        align-items: flex-start;
    }
    .signUp_input label {
        margin-bottom: 0.04rem;
    }
    .signUp_input input {
        width: 100% !important;
        box-sizing: border-box;
    }
    .grid_flex {
        flex-direction: column !important;
        padding-left: 0.15rem !important;
    }
    .grid {
        width: 100% !important;
        margin-top: 0.2rem !important;
    }
    .saoma {
        flex-direction: column !important;
        align-items: flex-start !important;
    }
    .saoma_flex:nth-child(2) {
        margin-left: 0 !important;
        margin-top: 0.1rem;
    }
    .icon_hezuo {
        justify-content: flex-start !important;
    }
    .huaban_img_bj {
        min-height: 1.8rem;
        object-fit: cover;
    }
    .exhibition {
        width: 100% !important;
        padding: 0 0.12rem !important;
        box-sizing: border-box;
    }
    .ex_header {
        width: 100% !important;
        padding: 0 !important;
    }
    .ex_header_img img {
        width: 100% !important;
        height: auto !important;
    }
    .chengjiu {
        width: 100% !important;
        padding: 0 !important;
    }
    .class_introduce {
        flex-direction: column !important;
        width: 100% !important;
        padding: 0 0.12rem !important;
        box-sizing: border-box;
    }
    .class_introduce_left {
        width: 100% !important;
    }
    .class_introduce_right {
        width: 100% !important;
        margin-top: 0.2rem;
    }
    .class_introduce_teacher {
        width: 100% !important;
    }
    .class_introduce_teachers {
        width: 100% !important;
    }
    .class_jieshao_title {
        font-size: 0.2rem !important;
    }
    .banner7_flex,
    .banner8_flex {
        width: 100% !important;
        padding: 0 0.12rem !important;
        box-sizing: border-box;
    }
    .banner .swiper-button-prev,
    .banner .swiper-button-next {
        display: none !important;
    }
    .zidingyi.swiper-button-prev,
    .zidingyi.swiper-button-next {
        display: flex !important;
    }
    .ex_btn_flexs {
        width: 100% !important;
        padding: 0 0.12rem !important;
        box-sizing: border-box;
    }
    .ex_btn_flexs .ex_btn_flex_ds {
        font-size: 0.14rem !important;
    }
    .teacher_introduce {
        flex-direction: column !important;
        width: 100% !important;
        padding: 0 0.12rem !important;
        box-sizing: border-box;
    }
    .teacher_introduce_left {
        width: 100% !important;
        height: auto !important;
    }
    .teacher_introduce_right {
        width: 100% !important;
        margin-top: 0.12rem;
    }
    .teacher_introduce_right_p1 {
        font-size: 0.18rem !important;
    }
    .teacher_introduce_right_p2 {
        font-size: 0.13rem !important;
        line-height: 1.6 !important;
    }
    .dianfeng {
        flex-direction: column !important;
    }
    .dianfeng_block {
        margin-bottom: 0.15rem;
    }
    .timeline-wrap {
        padding: 0.2rem 0.12rem !important;
    }
    .timeline-item {
        margin-bottom: 0.15rem !important;
    }
    .timeline-item:nth-child(odd) {
        padding-right: 55% !important;
    }
    .timeline-item:nth-child(even) {
        padding-left: 55% !important;
    }
    .timeline-card {
        padding: 0.08rem 0.1rem !important;
    }
    .timeline-card .tl-year {
        font-size: 0.16rem !important;
    }
    .timeline-card .tl-title {
        font-size: 0.12rem !important;
    }
    .timeline-card .tl-desc {
        font-size: 0.11rem !important;
    }
    .idea_flex {
        flex-wrap: wrap !important;
        justify-content: center !important;
    }
    .idea_flex_block {
        width: 45% !important;
        margin: 0.1rem !important;
    }
    .record .class_list {
        width: 100% !important;
        padding: 0 0.12rem !important;
        box-sizing: border-box;
    }
    .zuopin_tu {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .zuopin_tu img {
        width: 48% !important;
        height: auto !important;
        margin-bottom: 0.08rem;
    }
    .class_list {
        flex-wrap: wrap !important;
        justify-content: space-between !important;
    }
    .class_list .class_list_block {
        width: 48% !important;
        margin-right: 0 !important;
        margin-bottom: 0.15rem;
    }
    .class_introduce_left .swiper-slide img {
        width: 100% !important;
        height: auto !important;
    }
    #plan-fixed-card {
        width: 180px !important;
    }
    .plan-fixed-toggle {
        padding: 6px 10px !important;
        font-size: 12px !important;
    }
    .plan-fixed-input {
        font-size: 12px !important;
        padding: 5px 8px !important;
    }
    .plan-fixed-submit {
        font-size: 12px !important;
        padding: 6px 0 !important;
    }
    .real_time_info_flex {
        flex-wrap: wrap !important;
        width: 100% !important;
        padding: 0 0.12rem !important;
        box-sizing: border-box;
    }
    .real_time_info_block1 {
        width: 100% !important;
    }
    .real_time_info_block_flex {
        width: 100% !important;
        flex-direction: column !important;
    }
    .real_time_info_block2 {
        width: 100% !important;
        margin-top: 0.15rem;
    }
    .interview {
        flex-direction: column !important;
        width: 100% !important;
        padding: 0 0.12rem !important;
        box-sizing: border-box;
    }
    .interview .banner1 {
        width: 100% !important;
    }
    .interview_right {
        width: 100% !important;
        margin-top: 0.15rem;
    }
}

@media screen and (max-width: 480px) {
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        padding: 0 0 0 8px !important;
        margin-left: 12px;
        flex-direction: row !important;
    }
    .timeline-line {
        left: 6px !important;
    }
    .timeline-card {
        width: 100% !important;
    }
    .tl-arrow {
        left: -10px !important;
        right: auto !important;
        border-right-color: #e0e6ed !important;
        border-left-color: transparent !important;
    }
    .zuopin_tu img {
        width: 100% !important;
    }
    .class_list .class_list_block {
        width: 100% !important;
    }
    .idea_flex_block {
        width: 100% !important;
    }
}