@media (max-width: 991px) {
    html {
        font-size: 8px;
    }

    .default-section {
        padding: 4rem 0;
    }

    .inner {
        padding: 0 2.4rem;
    }

    .container {
        padding: 0 1.6rem;
    }

    .footer {
        padding: 4.5rem 1.6rem 0;
    }

    .site-header .header-inner .site-nav .menu-wrapper {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
    }

    .toggle-menu {
        position: absolute;
        right: 24px;
        width: 26px;
        top: 50%;
        -webkit-transform: translateY(-50%);
        transform: translateY(-50%);
        display: block;
        height: 24px;
        cursor: pointer;
    }

    .toggle-menu .bar {
        width: 27px;
        height: 2px;
        display: block;
        float: left;
        margin: 3px auto;
        -webkit-transition: all 0.3s ease-in-out;
        transition: all 0.3s ease-in-out;
        background: #ffffff;
    }

    .site-header .header-inner {
        text-align: center;
        padding: 12px 16px;
    }

    .site-header .header-inner .site-nav .nav-right {
        margin-left: 20px;
    }

    .site-header .header-inner .site-nav .nav-right .nav-btn {
        padding: 8px 22px;
    }

    .site-header .site-mobile-logo {
        display: block;
        max-width: 220px;
        text-align: left;
    }

    .site-header .site-main-menu li {
        margin: 0 15px;
    }

    .site-nav .site-logo {
        display: none;
    }

    .site-header .site-nav {
        position: fixed;
        width: 320px !important;
        height: 100vh;
        background: #2C2C2C;
        overflow-x: hidden;
        top: 0;
        right: -100%;
        display: block !important;
        -webkit-transition: all 0.5s ease-in-out;
        -o-transition: all 0.5s ease-in-out;
        transition: all 0.5s ease-in-out;
        overflow-y: auto;
        -webkit-box-shadow: 0 20px 30px rgba(0, 0, 0, 0.1);
        box-shadow: 0 20px 30px rgba(0, 0, 0, 0.1);
    }

    .site-header .site-nav .site-main-menu {
        display: block;
        width: 100%;
        padding-bottom: 50px;
        text-align: left;
        margin: 0;
    }

    .site-header .site-nav .site-main-menu li {
        padding: 0;
        margin: 0;
    }

    .site-header .site-nav .site-main-menu li > a {
        display: block;
        padding: 16px 35px;
        font-weight: 600;
        font-size: 2rem;
        color: #ffffff;
        background: none;
    }

    .site-header .site-nav .nav-right {
        display: none;
    }

    .header-inner .site-mobile-logo img {
        max-height: 65px;
        -webkit-transition: all 0.3s ease-in-out;
        -o-transition: all 0.3s ease-in-out;
        transition: all 0.3s ease-in-out;
    }

    .pix-header-fixed .site-main-menu li a {
        color: #ffffff;
    }

    .pix-header-fixed .header-inner .site-logo {
        padding: 12px 0;
    }

    .pix-header-fixed.header-two.toggle-light .toggle-menu .bar {
        background: #000000;
    }

    .sidebar-open .site-header .site-nav {
        right: 0;
    }

    .sidebar-open .menu-wrapper:before {
        opacity: 1;
        visibility: visible;
    }

    .close-menu {
        display: flex;
        align-items: center;
        justify-content: flex-end;
        top: 0;
        text-align: right;
        width: 100%;
        left: 0;
        padding: 30px 20px;
        color: #b9b9b9;
        cursor: pointer;
    }

    .close-menu span {
        font-size: 15px;
    }

    .contact-card__subtitle {
        font-size: 2.8rem;
    }

    /* foolscreen */
    .fullscreen {
        padding-bottom: 4rem;
    }

    .fullscreen-content {
        text-align: center;
        padding-bottom: 4rem;
    }

    .fullscreen .title {
        text-align: center;
        margin-bottom: 24px !important;
    }

    .fullscreen .section-text {
        font-size: 2rem;
        margin: 0 auto 24px !important;
        text-align: center;
    }

    .fullscreen-image {
        padding-left: 0;
    }

    .main-image {
        max-width: 680px;
        margin: 0 auto;
    }

    .about-section-col:not(:last-child) {
        margin-bottom: 2rem;
    }

    .about-section-col {
        max-width: 650px;
    }

    .about-section .subtitle {
        font-size: 2rem;
    }

    .about-section .text {
        font-size: 14px;
    }

    .hiw-section-image {
        margin: 0 0 4rem;
    }

    .hiw-section-body {
        max-width: 500px;
        margin: 0 auto;
    }

    .hiw-section-content {
        max-width: 100%;
    }

    .hiw-section-text {
        font-size: 14px;
    }

    .safely-section__block {
        max-width: 300px;
        margin: 0 auto;
        padding: 0 2.2rem 2.6rem;
    }

    .footer-copyright {
        padding-top: 12px;
    }

    .footer-nav {
        padding-left: 40px;
    }
}

@media (max-width: 767px) {
    .container-footer,
    .site-header .container {
        padding: 0;
    }
    .inner-page {
        padding: 4rem 0;
    }
    .inner-page .title {
        font-size: 2.8rem;
        margin-bottom: 2.4rem;
    }
    .footer,
    .site-header .header-inner {
        border-radius: 0;
    }

    .hiw-section .section-text {
        margin-bottom: 2rem;
    }

    .hiw-row__bg {
        padding: 2rem 0 3rem;
    }

    .hiw-section .block {
        max-width: 500px;
        -webkit-box-orient: horizontal;
        -webkit-box-direction: normal;
        -ms-flex-direction: row;
        flex-direction: row;
    }

    .hiw-section__image {
        -webkit-box-flex: 1;
        -ms-flex: 1 1 auto;
        flex: 1 1 auto;
        margin-right: 50px;
        margin-bottom: 0;
    }

    .hiw-section .subtitle {
        font-size: 2.2rem;
    }

    .engines-section__block {
        padding: 4.4rem 2rem;
    }

    .site-header .header-inner {
        padding: 12px;
    }

    .site-header .site-mobile-logo {
        max-width: 220px;
    }

    .title:not(.title-big) {
        font-size: 4rem;
    }

    .engines-text {
        padding-right: 0;
    }

    .feature-image {
        margin: -3rem 0;
    }

    .contact-section {
        padding: 4rem 0;
    }

    .contact-card {
        margin: 0 auto 30px;
        height: calc(100% - 30px);
    }

    .contact-section .title {
        margin-bottom: 4rem;
    }

    .card-body {
        padding: 1rem 3.4rem 2.4rem;
    }

    .footer-content {
        padding: 0 0 3rem;
    }

    .footer__title {
        font-size: 1.8rem;
        margin-bottom: 12px;
    }

    .footer-link {
        font-size: 1.6rem;
    }

    .footer-nav {
        max-width: 400px;
        padding-left: 0;
        margin-bottom: 24px;
    }

    .footer-btn.btn_main {
        margin: 0 auto;
    }

    .section-404 {
        padding: 9rem 0 10rem;
    }

    .fullscreen {
        padding: 5rem 0;
    }

    .card {
        border-radius: 4.8rem;
    }

    .card-btn {
        padding: 1rem 2rem 1rem 3.4rem;
        min-height: 80px;
        font-size: 2rem;
        line-height: 140%;
    }

    .thanks-content .text {
        text-align: center;
    }

    .thanks-content .title {
        margin-bottom: 20px !important;
    }

    .thanks-content {
        text-align: center;
        padding: 4rem 5.6rem 6rem;
    }

    .thanks-image {
        border-radius: 0 0 1.6rem 1.6rem;
    }

    .removed-section-content {
        margin-bottom: 50px;
        text-align: center;
    }
}

@media (max-width: 575px) {
    .engines-section-image:not(:last-child) {
        margin-bottom: 26px;
    }

    .engines-section .text {
        font-size: 14px;
    }

    .engines-section-image img {
        max-height: 5rem;
    }

    .uninstall-item {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        gap: 4rem;
    }

    .uninstall-item-content {
        text-align: center;
    }

    .engines-section__image img {
        margin-bottom: 3.6rem;
    }

    .return-to-top.back-top {
        bottom: 5rem;
    }

    .thanks-content {
        padding: 3rem 1.6rem 5rem;
    }

    .title-big {
        font-size: 5rem;
    }

    .footer-content {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        -webkit-box-align: center;
        -ms-flex-align: center;
        align-items: center;
    }

    .footer-content .footer-col-second,
    .footer-content .footer-col-first {
        flex: 0 0 auto;
        width: auto;
    }

    .footer-nav {
        max-width: 180px;
    }

    .footer-col-first {
        margin: 0 0 24px;
        text-align: center;
    }

    .footer-logo {
        margin-bottom: 12px;
        display: inline-block;
    }

    .removed-section .title {
        font-size: 3.6rem;
    }
}