/*
* expandable menu started
*/

@media (max-width: 1280px) {
    .header__search-form {
        display: none;
    }
    .cta-two__single {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        padding: 70px;
    }
    .cta-two__icon {
        margin-right: 0;
        margin-bottom: 30px;
    }
    .cta-two__title {
        font-size: 40px;
    }
}

@media (max-width: 1199px) {
    .header-navigation {
        margin-bottom: 0;
    }
    .logo-box {
        width: 100%;
        float: none;
        margin: 0 !important;
    }
    .navigation-box {
        margin: 0;
    }
    .navbar-expand-lg .menu-toggler {
        display: block;
        margin-right: 0;
        border-color: #fff;
        background-color: transparent !important;
        margin: 23px 0;
        color: #fff;
        border: none;
        font-size: 28px;
        float: right;
        outline: none;
        cursor: pointer;
    }
    .menu-toggler:hover {
        border-color: #f16101;
    }
    .menu-toggler .icon-bar {
        background: #fff;
    }
    .menu-toggler:hover .icon-bar {
        background: #f16101;
    }
    .navbar-expand-lg .navbar-collapse {
        padding-bottom: 0;
        overflow: auto !important;
        width: 100%;
    }
    .navbar-expand-lg .navbar-collapse {
        display: none !important;
        background: transparent;
        padding: 0px 0px !important;
        padding-bottom: 0px !important;
        margin: 0;
        background: #000;
        -webkit-transition: all .5s ease;
        transition: all .5s ease;
        height: 0;
    }
    .navbar-expand-lg .navbar-collapse.showen {
        display: block !important;
        height: auto;
        max-height: 70vh;
    }
    .navbar-collapse.show {
        overflow-y: auto;
    }
    .header-navigation .main-navigation {
        float: none !important;
        text-align: left !important;
    }
    .header-navigation .nav {
        width: 100%;
        text-align: left;
    }
    .header-navigation .nav>li {
        display: block;
        padding: 0 !important;
        width: 100%;
        float: none;
    }
    .header-navigation .nav>li+li {
        margin-left: 0 !important;
    }
    .header-navigation .nav>li>a {
        padding: 8px 0;
    }
    .header-navigation .right-box.nav {
        width: 100%;
        margin: 0;
    }
    .header-navigation .right-box.nav>li>a {
        border: none !important;
        padding: 8px 0;
        color: #fff;
    }
    .header-navigation .nav>li>a:after {
        display: none;
    }
    .header-navigation .nav.navigation-box+.nav {
        border-top: 1px dashed #012237;
    }
    .header-navigation .navigation-box>li>.sub-menu,
    .header-navigation .navigation-box>li>.sub-menu>li>.sub-menu {
        position: relative !important;
        width: 100% !important;
        opacity: 1 !important;
        visibility: visible !important;
        left: auto !important;
        right: auto !important;
        top: auto !important;
        -webkit-transition: none !important;
        transition: none !important;
        display: none;
        float: none !important;
        margin: 0;
        -webkit-transform: translateX(0);
        transform: translateX(0);
        -webkit-box-shadow: none !important;
        box-shadow: none !important;
    }
    .header-navigation .navigation-box>li>.sub-menu>li>a::after {
        display: none;
    }
    .header-navigation ul.navigation-box>li+li {
        padding: 0 !important;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        display: block;
        float: none;
        margin: 0 !important;
    }
    .header-navigation .nav>li.show-mobile {
        display: none;
    }
    .header-navigation ul.navigation-box>li>a,
    .header-navigation .right-box.nav>li>a {
        padding: 0;
        display: block;
        color: #fff;
        padding: 16px 0 16px 20px !important;
        -webkit-transition: background 0.4s ease 0s;
        transition: background 0.4s ease 0s;
    }
    .header-navigation ul.navigation-box li a .sub-nav-toggler {
        background-color: transparent;
        background-image: none;
        border: 1px solid #fff;
        border-radius: 4px;
        padding: 9px 9px;
        position: absolute;
        top: 50%;
        -webkit-transform: translateY(-50%);
        transform: translateY(-50%);
        right: 15px;
        /*margin-top: 8px;*/
        margin-right: 0px;
        display: block;
        cursor: pointer;
        outline: none;
    }
    .header-navigation .navigation-box .sub-nav-toggler .icon-bar {
        background-color: #fff;
        border-radius: 1px;
        display: block;
        height: 1px;
        width: 20px;
    }
    .header-navigation .navigation-box .sub-nav-toggler .icon-bar+.icon-bar {
        margin-top: 4px;
    }
    .header-navigation .container .right-side-box {
        top: 20px;
        right: 15px;
        -webkit-transform: translateY(0%);
        transform: translateY(0%);
    }
    .header-navigation .container {
        display: block;
        padding-right: 0px;
        padding-left: 0px;
        position: relative;
    }
    .header-navigation .container .logo-box {
        position: relative;
        top: 0;
        left: 0;
        -webkit-transform: translateY(0);
        transform: translateY(0);
        float: none;
        padding-right: 145px;
    }
    .header-navigation .container .logo-box .navbar-brand {
        float: left;
        padding: 20px 0;
    }
    .header-navigation .container .logo-box .navbar-toggler {
        float: left;
    }
    .header-navigation ul.navigation-box {
        display: block;
        margin: 0 !important;
        width: 100%;
    }
    .header-navigation ul.navigation-box>li {
        padding: 0;
        display: block;
    }
    .header-navigation ul.navigation-box>li>a {
        display: block;
        padding: 13px 30px;
    }
    .header-navigation ul.navigation-box>li>a:after {
        display: none;
    }
    .header-navigation ul.navigation-box>li+li {
        margin: 0;
    }
    .header-navigation .main-navigation {
        float: none;
        width: 100%;
        display: none;
        text-align: left;
        background: #9fa2a7;
        max-height: 70vh;
        overflow-y: scroll;
    }
    .header-navigation .container .menu-toggler {
        display: block;
    }
    .header-navigation.stricky-fixed ul.navigation-box>li {
        padding: 0;
    }
    .header-navigation .container .logo-box .navbar-brand {
        background-color: transparent;
    }
    .header-navigation .container .menu-toggler {
        float: right;
        margin: 28px 0;
        color: #81868a;
        margin-left: 0px;
        position: relative;
        top: 5px;
    }
    .header-navigation .container .logo-box {
        padding-right: 15px !important;
    }
    .header-navigation {
        padding-left: 0px !important;
        padding-right: 0px !important;
    }
    .header-navigation .container .logo-box {
        left: 0 !important;
    }
    .header-navigation .container .logo-box {
        padding-left: 15px;
    }
    .header-navigation .main-navigation {
        padding-right: 0;
    }
    .header__social {
        margin-top: 10px;
        margin-left: 20px;
        margin-right: 20px;
    }
    .site-header__home-three .header-navigation .container .menu-toggler {
        position: relative;
        top: 10px;
        color: #ffffff;
        margin-left: 25px;
    }
    .site-header__header-two .header-navigation .container .menu-toggler {
        margin-left: 20px;
    }
    .site-header__header-two .header-navigation .container .logo-box {
        left: 15px;
    }
    .site-header__header-two .header-navigation .container .right-side-box {
        right: 0px;
    }
    .site-header__header-two .header-navigation .main-navigation,
    .site-header__header-two .header-navigation ul.navigation-box>li {
        padding: 0;
    }
    .site-header__inner-page .header-navigation .main-navigation {
        padding-right: 0;
    }
}

@media (max-width: 425px) {
    .header-navigation .container .right-side-box {
        display: none !important;
    }
    .header-navigation .container .menu-toggler {
        float: right !important;
    }
}

@media (max-width: 1199px) {
    .video-one__title,
    .video-two__title {
        font-size: 40px;
        margin-bottom: 40px;
    }
    .video-one__title {
        margin-bottom: 0;
    }
    .countdown-one .become-teacher__form {
        padding-left: 0;
    }
    .blog-two__title {
        font-size: 20px;
    }
    .blog-two__inner {
        padding: 30px;
    }
    .mailchimp-one__title {
        font-size: 30px;
    }
    .footer-widget {
        padding: 0;
        position: static;
        margin-top: 30px;
    }
    .footer-widget__about {
        padding: 0;
    }
    .footer-widget__about::before {
        display: none;
    }
    .site-footer__upper {
        padding-top: 50px;
        padding-bottom: 80px;
    }
    .header__search-form {
        display: block;
    }
    .meeting-one img,
    .about-one__img img {
        max-width: 100%;
    }
    .pricing-one__single {
        padding-left: 60px;
        padding-right: 20px;
    }
    .meeting-one__content {
        padding-left: 30px;
    }
    .blog-one__title {
        font-size: 18px;
    }
    .blog-one__content {
        padding-left: 20px;
        padding-right: 20px;
    }
    .news-one__content {
        padding-left: 20px;
        padding-right: 20px;
    }
    .slider-three__title {
        font-size: 65px;
        line-height: 65px;
    }
    .course-category-three__single img {
        max-width: 100%;
    }
    .cta-six__content,
    .cta-six__right,
    .cta-six__left {
        float: none;
        width: 100%;
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
        padding: 30px 20px;
    }
    .cta-six__content img,
    .cta-six__right img {
        width: 100%;
        height: auto;
        object-fit: cover;
        border-radius: 8px;
        /* 可选圆角效果 */
    }
    .cta-six__left img {
        width: 100%;
    }
    .cta-six__content {
        padding: 0;
    }
    .course-details__review-box {
        margin-top: 40px;
    }
    .about-two__image {
        margin-top: 50px;
    }
}

@media (max-width: 991px) {
    .banner-one__title {
        font-size: 50px;
        line-height: 1em;
    }
    .video-two__scratch {
        display: none;
    }
    .video-two__popup {
        margin-top: 40px;
    }
    .countdown-one .become-teacher__form {
        margin-top: 40px;
    }
    .cta-three__image {
        max-width: 100%;
    }
    .cta-three__content {
        padding: 50px 0;
    }
    .mailchimp-one__content {
        margin-bottom: 40px;
    }
    .header__search-form {
        display: none;
    }
    .site-header__header-two .header-navigation .container .right-side-box {
        top: 29px;
    }
    .banner-two__title {
        font-size: 80px;
        line-height: 1em;
    }
    [class*="cta-five__members-"],
    .about-one__text br {
        display: none;
    }
    .pricing-one__single {
        text-align: center;
    }
    .meeting-one__content {
        padding-left: 0;
        padding-top: 40px;
    }
    /* 容器设置 */
    .video-one__img,
    .course-category-three__single {
        position: relative;
        overflow: hidden;
        /* 关键1：裁剪溢出内容 */
        box-sizing: border-box;
        /* 关键2：包含padding/border计算 */
        width: 100%;
        /* 确保宽度约束 */
        padding: 0;
        /* 清除默认padding */
        isolation: isolate;
        /* 新建层式上下文 */
    }
    /* 图片修正 */
    .video-one__img img,
    .course-category-three__single img {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        object-position: center;
        transform: translateZ(0);
        /* 触发GPU加速 */
        /* 添加右侧安全边距 */
        right: 0;
        margin-right: 0;
        /* 可选：修复1px间隙 */
        transform: translateX(0.1px) translateZ(0);
    }
    .team-tab .tab-content {
        padding-top: 80px;
    }
    .team-tab .tab-content img {
        max-width: 100%;
        margin-top: 40px;
    }
    .cta-six .block-title__title {
        font-size: 20px;
    }
    .faq-one [class*="col-lg-"],
    .faq-one [class*="col-lg-"]:nth-child(2n) {
        padding: 0 !important;
        border: none;
    }
    .faq-one .col-lg-6+.col-lg-6 {
        margin-top: 40px;
    }
    .faq-one__title {
        margin-bottom: 30px;
    }
    .inner-banner__title {
        font-size: 70px;
    }
    .course-details__price {
        margin-top: 40px;
    }
    .team-details .team-one__image img {
        width: 100%;
    }
    .team-details .team-one__single {
        margin-top: 50px;
    }
    .become-teacher__form {
        margin-top: 50px;
        padding-left: 0;
    }
    .contact-info-one {
        padding: 80px 0;
    }
    .contact-info-one__single {
        margin-top: 30px;
    }
}

@media (max-width: 767px) {
    .banner-one .banner-one__person {
        display: none !important;
    }
    .cta-five__title,
    .cta-one__home-one .cta-one__title {
        font-size: 40px;
        line-height: 45px;
        margin-bottom: 40px;
    }
    .cta-five__title {
        margin-bottom: 10px;
    }
    .cta-six__title {
        padding-left: 30px;
    }
    .site-footer__bottom .container {
        padding-top: 40px;
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        text-align: center;
    }
    .site-footer__social::before {
        display: none;
    }
    .site-footer__scroll-top {
        left: 120%;
    }
    .block-title__title {
        font-size: 25px;
        line-height: 46px;
    }
    .blog-details__author-image,
    .blog-details__author-content {
        display: block;
    }
    .blog-details__author-content {
        padding-left: 0;
        margin-top: 30px;
    }
    .cta-two__text br {
        display: none;
    }
    .cta-one .container {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        text-align: center;
    }
    .cta-one__title {
        margin-bottom: 30px;
    }
}

@media (max-width: 575px) {
    .banner-one__cta {
        display: none;
    }
    .banner-wrapper .banner-carousel-btn [class*="banner-carousel-btn__"] {
        position: static;
        margin: 0 20px;
    }
    .banner-wrapper .banner-carousel-btn {
        position: absolute;
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -webkit-box-pack: center;
        -ms-flex-pack: center;
        justify-content: center;
        bottom: 30px;
        left: 50%;
        -webkit-transform: translateX(-50%);
        transform: translateX(-50%);
        z-index: 91;
    }
    .course-category-two .inner-container {
        margin-top: 0;
    }
    .about-one__about-page .about-one__img::before {
        display: none;
    }
    .team-tab__top {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
    }
    .team-tab__social {
        margin-top: 20px;
    }
    .about-two__image img {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .site-header__header-two .header-navigation .container .right-side-box {
        right: 15px;
    }
    .header-navigation .container .menu-toggler {
        float: right !important;
    }
    .site-header__home-three .header-navigation .container .right-side-box {
        top: 30px;
    }
    .about-one__img::before {
        display: none;
    }
    .site-footer__scroll-top {
        left: 90%;
        width: 40px;
        height: 40px;
        top: 10%;
    }
}

@media (max-width: 375px) {
    .header__social {
        display: none;
    }
    .header-navigation .container .logo-box:after {
        display: none;
    }
    .header-navigation .container .logo-box {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -webkit-box-pack: justify;
        -ms-flex-pack: justify;
        justify-content: space-between;
    }
    .topbar-one .container {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        text-align: center;
        -webkit-box-pack: center;
        -ms-flex-pack: center;
        justify-content: center;
    }
    .topbar-one__right,
    .topbar-one__left {
        -webkit-box-pack: center;
        -ms-flex-pack: center;
        justify-content: center;
    }
    .banner-one__title {
        font-size: 25px;
    }
    .banner-one__scratch {
        display: none !important;
    }
    .banner-one__tag-line {
        font-size: 30px;
    }
    .countdown-one__list {
        -ms-flex-wrap: wrap;
        flex-wrap: wrap;
    }
    .countdown-one__list li {
        -webkit-box-flex: 1;
        -ms-flex: 1 1 50%;
        flex: 1 1 50%;
        max-width: 50%;
        margin-bottom: 30px;
    }
    .become-teacher__form-content {
        padding-left: 20px;
        padding-right: 20px;
    }
    .cta-three__single {
        -webkit-box-flex: 1;
        -ms-flex: 1 1 50%;
        flex: 1 1 50%;
        margin-top: 30px;
        max-width: 50%;
    }
    .cta-three__single-wrap {
        margin-top: -20px;
    }
    .mailchimp-one__content {
        text-align: center;
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
    }
    .mailchimp-one__form .thm-btn {
        position: relative;
        margin-top: 15px;
    }
    .mailchimp-one__icon i {
        margin-right: 0;
        margin-bottom: 20px;
    }
    .slider-three__title,
    .banner-two__title {
        font-size: 40px;
        line-height: 1.2em;
    }
    .pricing-one__single {
        text-align: left;
    }
    .meeting-one__box-wrap {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
    }
    .meeting-one__box+.meeting-one__box {
        margin-top: 50px;
    }
    .team-tab__content {
        padding-right: 0;
    }
    .team-tab__tab-navs {
        bottom: 3%;
    }
    .cta-six__title {
        font-size: 25px;
    }
    .video-three__title {
        font-size: 30px;
        line-height: 1.2em;
    }
    .video-three__btn-box {
        margin-top: 100px;
    }
    [class*="cta-five__bubble-"] {
        display: none;
    }
    .cta-five__title {
        font-size: 35px;
    }
    .course-details__top {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        -webkit-box-pack: start;
        -ms-flex-pack: start;
        justify-content: flex-start;
        -webkit-box-align: start;
        -ms-flex-align: start;
        align-items: flex-start;
    }
    .course-details__tab-navs li {
        width: 100%;
        text-align: center;
    }
    .team-details__certificate-list,
    .course-details__list-item,
    .course-details__comment-top,
    .course-details__comment-meta,
    .course-details__meta-link,
    .course-details__progress-item {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        -webkit-box-align: start;
        -ms-flex-align: start;
        align-items: flex-start;
    }
    .team-details__certificate-list li+li {
        margin-left: 0;
        margin-top: 20px;
    }
    .course-details__comment-img {
        margin-bottom: 20px;
    }
    .course-details__progress-bar {
        margin-left: 0;
        margin-right: 0;
        margin-top: 10px;
        margin-bottom: 10px;
    }
    .course-details__tab-content {
        padding-left: 15px;
        padding-right: 15px;
    }
    .course-details__comment {
        margin-left: -15px;
        margin-right: -15px;
        padding-left: 15px;
        padding-right: 15px;
    }
    .course-details__comment-form-btn {
        padding-left: 30px;
        padding-right: 30px;
        font-size: 16px;
    }
    .course-details__meta-link span {
        margin-left: 0;
    }
    .course-details__list-img {
        margin-bottom: 15px;
    }
    e,
    .inner-banner__title {
        font-size: 40px;
        margin: 0;
    }
    .inner-banner .container {
        padding: 100px 0;
        text-align: center;
    }
    .become-teacher__form-top {
        padding-left: 30px;
        padding-right: 30px;
    }
    .cta-one__title {
        font-size: 35px;
    }
    .banner-two .container {
        padding-top: 100px;
        padding-bottom: 180px;
    }
    .blog-details .share-block {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        text-align: center;
        -webkit-box-pack: center;
        -ms-flex-pack: center;
        justify-content: center;
        -webkit-box-align: center;
        -ms-flex-align: center;
        align-items: center;
    }
    .comment-one__top-left,
    .comment-one__top-right,
    .comment-one__image,
    .comment-one__content {
        display: block;
    }
    .comment-one__top-right,
    .comment-one__content {
        padding-left: 0;
        margin-top: 20px;
    }
}