@media (max-width: 768px) {
  :root {
    --max-width: 768px;
    --mobile-side: 20px;
  }

  .max_wrap {
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
  }

  .mobile_flex_wrap {
    display: flex;
    align-items: center;
  }

  .pc-only {
    display: none !important;
  }

  .mobile-only {
    display: block !important;
  }

  .btn_primary {
    height: 40px;
    line-height: 40px;
    padding: 0 10px;
  }

  /* title */
  .title_wrap {
    display: block;
  }

  /* header */
  header {
    height: 80px;
    max-width: 768px;
    width: 100vw;
  }

  header #logo {
    width: 88px;
    height: auto;
  }

  nav.pc-only {
    display: none !important;
  }

  .mobile-hamburger-menu {
    width: 40px;
    height: 40px;
    background: transparent;
    margin-left: 10px;
  }

  header .mobile_flex_wrap {
    justify-content: right;
  }

  #mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: #fff;
    z-index: 99999;
    transition: right 0.3s ease;
    padding: 30px;
  }

  #mobile-nav.is-open {
    right: 0;
  }

  #mobile-nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 99998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }

  #mobile-nav-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
  }

  #mobile-menu-side-btn {
    width: 100%;
    height: 100%;
    display: block;
    border: none;
    background-color: #ffffff00;
  }

  #mobile-menu-side-btn svg.feather {
    width: 32px;
    height: 32px;
  }

  .mobile-nav-closed button {
    background-color: #ffffff00;
    border: none;
  }

  .mobile-nav-header {
    width: 100%;
    height: 50px;

    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .mobile-nav-logo {
    width: 60px;
    height: 30px;
    background-image: url(../../img/head_logo.svg);
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
  }

  .mobile-nav-list {
    text-align: left;
    margin-top: 15px;
  }

  .mobile-nav-list > li {
    padding: 15px 0;
  }

  .mobile-nav-list li a,
  .mobile-nav-list li p {
    font-size: var(--medium);
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  #mobile-nav li > ul {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  #mobile-nav li.is-open > ul {
    max-height: 600px;
    height: fit-content;
    margin-top: 10px;
  }

  #mobile-nav li.is-open > ul > li {
    padding: 7px 5px 7px 15px;
  }

  #mobile-nav li.is-open > ul > li > a {
    font-size: var(--base);
    font-weight: 300;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: #585858;
  }

  #mobile-nav li.is-open > ul > li > a svg {
    width: 15px;
    height: 15px;
  }

  /* main */
  #mobile_main {
    background-image: url(../../img/responsive/main_background.png);
    width: 100%;
    height: 100dvh;
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;

    display: grid !important;
    align-items: center;
    justify-content: center;
  }

  #mobile_main img {
    width: 80%;
  }

  /* #company */
  #company {
    width: 100%;
    height: fit-content;
    padding: 80px 0;
  }

  #company .title_wrap .right_link {
    margin-top: 25px;
  }

  .stats_container {
    display: block;
    margin-top: 30px;
    width: 100%;
  }

  .stat_card {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 15px;
  }

  .stat_chart {
    width: 50%;
  }

  .stat_info {
    width: 50%;
    text-align: left;
    padding-left: 15px;
  }

  .default_text_style p {
    line-height: 1.3;
  }

  /* #sticy_service / mobile_service_section.php */

  #sticy_service {
    padding-top: 80px;
    padding-bottom: 80px;
    position: relative;
    overflow: hidden;
  }

  #sticy_service .max_wrap {
    display: block;
  }

  #sticy_service .title_wrap {
    position: static;
    top: auto;
    margin-bottom: 0;
    width: 100%;
  }

  #sticy_service .title_wrap .right_link {
    margin-top: 20px;
  }

  #sticy_service .swiper {
    overflow: initial;
  }

  .mobile-peek-swiper {
    padding: 0 16px;
    margin-top: 50px;
  }

  .mobile-peek-swiper .swiper-slide {
    height: auto;
  }

  .mobile-peek-swiper .card {
    border-radius: 16px;
    background: #fff;
    padding: 18px;
  }

  .glass_card {
    width: 100%;
    height: fit-content;
    padding: 30px;
  }

  .glass_card .card_text_wrap {
    margin-top: 20px;
  }

  .glass_card .card_text_wrap h3 {
    margin: 3px 0 15px;
  }

  .glass_card .link_to {
    margin-top: 20px;
  }

  .sticky_absolute {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    padding: 0 0;
  }

  .sticky_absolute img:nth-child(1) {
    position: absolute;
    top: 30%;
    right: 3%;

    display: block;
    margin-bottom: 0;
    margin-left: auto;

    width: 40%;
  }

  .sticky_absolute img:nth-child(2) {
    position: absolute;
    bottom: 5%;
    left: 3%;
    margin-left: 0;

    width: 40%;
  }

  /* client_def_wrap */
  .client_def_wrap {
    width: 100%;
    height: fit-content;
    padding: 80px 0;
  }

  .client_wrap {
    margin-top: 20px;
  }

  .client_wrap .client_box {
    width: 32%;
    height: fit-content;
    max-height: 130px;
    padding: 20px 0;
  }

  .client_wrap .client_box .client_icon {
    width: 35px;
    height: 35px;
    margin: 0 auto 10px;
  }

  .client_wrap .client_box .client_text h3 {
    font-size: 21px;
  }

  .client_logo_wrap {
    margin-top: 20px;
  }

  .client_logo_wrap div.client_logo_img:nth-last-child(1) {
    display: none;
  }

  .down_company_info {
    display: block;
    text-align: center;
    background-size: contain;
    background-position: center right;
    padding: 20px 20px;
  }

  .link_wrap a {
    width: fit-content;
    padding: 7px 20px;
    margin: 15px auto 0;
  }

  /* map_wrap 하단고정 지도 */
  #map_wrap {
    padding: 50px 0;
  }

  #map_wrap .max_wrap {
    display: block;
  }

  #map_wrap #map {
    width: 100%;
    height: 200px;
    margin-bottom: 15px;
  }

  #map_wrap .contact_info .address {
    padding: 15px 0;
  }

  #map_wrap .contact_info .contact {
    margin-top: 10px;
  }

  #map_wrap .contact_info .contact svg {
    width: 17px;
    height: 17px;
  }

  /* 푸터 */

  footer .max_wrap {
    display: block;
    text-align: center;
  }

  footer .footer_adddot {
    margin-bottom: 30px;
  }

  .footer_adddot.mobile_flex_wrap {
    justify-content: center;
    width: 100%;
  }

  .footer_adddot.mobile_flex_wrap h3 {
    padding: 0 10px;
    border-left: solid 1px #ccc;
  }

  .footer_adddot.mobile_flex_wrap h3:nth-last-child(1) {
    border-right: solid 1px #ccc;
  }

  footer .footer_adddot h3 {
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 12px;
  }

  footer .footer_adddot .info_list p {
    font-size: 12px;
    margin-bottom: 8px;
    text-decoration: underline;
    color: #303030;
  }

  /* 회사소개 */
  .section_padding {
    padding: 80px 15px;
  }
  #sub_about_wrap {
    max-width: 100vw;
    width: 100%;
    margin: 0 auto;
  }

  #sub_about_wrap .text_wrap_des > br {
    display: none;
  }

  #sub_main video {
    height: 100dvh;
  }
  .main_title_img img {
    width: 90vw;
  }

  #sub_count_wrap {
    flex-wrap: wrap;
    margin-top: 30px;
  }

  #sub_count_wrap .count_box_sub {
    width: 50%;
  }

  .way_card_wrap {
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 50px;
  }

  .way_card_wrap .team_card {
    width: 48%;
    height: 200px;
    padding: 10px 20px;
  }

  .way_card_wrap .team_card br {
    display: none;
  }

  .bottom_des {
    font-size: 70px;
  }

  .client_logo_img {
    width: 33.33%;
  }

  .client_logo_img img {
    width: 100%;
  }

  .value_card_wrap {
    display: block;
    width: 100%;
  }

  .value_card {
    width: 100%;
    border-radius: 16px;
    padding: 30px;
    background-size: cover;
    height: 200px;
    margin-bottom: 20px;
  }

  /* 서브페이지 */
  .top_text_main {
    font-size: 16px;
  }
  .main_wrap_title_section h2 {
    font-size: 32px;
  }

  .service_sub_page_layout {
    display: block;
  }

  .srv_slide_title {
    margin-bottom: 50px;
  }

  .service_info_wrap--lay {
    width: 100%;
  }

  .media img {
    width: 100%;
  }

  .bullets {
    font-size: 14px;
  }

  .service_sub_page_layout .desc,
  .step p {
    font-size: 16px;
  }

  .feature-card .icon {
    width: 80px;
    height: 80px;
  }

  .feature-card h3,
  .title--layout,
  .step h4 {
    font-size: 18px;
  }

  .feature-card p {
    font-size: 14px;
    line-height: 1.3;
  }

  .platform__wrap {
    display: block;
  }

  .platform__wrap > .sub_title_wrap {
    width: 100%;
    margin-bottom: 30px;
  }

  .platform__wrap > .platform__right {
    width: 100%;
  }

  .platform__slide {
    background-color: #fff;
    border-radius: 10px;
    text-align: center;
    overflow: hidden;
  }

  .platform__slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .section--layout {
    display: block;
  }

  .viewer--layout {
    display: none;
  }

  .btn--layout {
    gap: 5px;
  }

  .body--layout {
    padding: 0px 0 20px 54px;
    font-size: 14px;
    line-height: 1.4;
  }

  .num--layout {
    width: 30px;
    height: 30px;
    font-size: 14px;
  }
  .menu--layout {
    margin-top: 30px;
  }

  .whyLayout {
    border-bottom: solid 1px #eeeeee;
  }

  .step {
    height: fit-content;
  }

  #service_portfolio_latest ul {
    grid-template-columns: repeat(2, 1fr);
    gap: 5px;
  }

  #service_portfolio_latest ul li {
    height: 180px;
  }

  .more_service {
    display: block;
  }

  .media-row {
    width: 100%;
    gap: 10px;
    margin-top: 30px;
  }

  .media-row > .glass_card > .circle_icon_wrap {
    width: 100px;
    height: 100px;
    line-height: 100px;
  }

  .media-row > .glass_card {
    padding: 15px;
  }

  .text_wrap_des {
    margin-top: 15px;
  }

  .float-wrap {
    height: fit-content;
    right: 0;
    top: 70%;
  }

  .portfolio_bo_v_title {
    padding: 70px 20px;
    align-items: self-end;
    height: 325px;
  }
  .portfolio_bo_v_title h2 {
    font-size: clamp(40px, 6vw, 50px);
  }
  .portfolio_bo_v_title p {
    font-size: 18px;
    line-height: 1.4;
  }

  #contact_detail {
    padding: 20px 0 50px;
  }

  .float-wrap.is-open .panel {
    width: 260px;
  }

  .float-wrap.is-open {
    top: 30%;
  }

  .rail {
    height: fit-content;
  }

  .rail > .second_btn_contact {
    display: none;
  }
}