.sub_section {
    width: 100%;
    max-width: 1300px;
    /* flex-wrap: wrap; */
}

.gtr-header {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.gtr-header__top {
    width: 100%;
    height: 30px;
    background: #365066;
    display: flex;
    justify-content: center;
}

.gtr-header__top--membermenu {
    max-width: 1300px;
    width: 100%;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.gtr-header__top--membermenu-item {
    color: #fff;
    text-decoration: none;
    display: flex;
    align-items: center;
    margin-right: 20px;
}

.gtr-header__top--membermenu-item:last-child {
    margin-right: 0;
}

.gtr-header__top--membermenu-item a {
    color: #fff;
    font-size: 11px;
    font-family: 'dotum', sans-serif;
}

.gtr-header__gnb {
    width: 100%;
    display: flex;
    justify-content: center;
    box-shadow: 0 3px 6px rgba(00, 0, 0, 0.05);
    height: 90px;
}

.gtr-header__gnb__inner-wrapper {
    color: #111;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #fff;
    max-width: 1300px;
    width: 100%;
}

.gtr-header__gnb__menu {
    display: flex;
    align-items: center;
}
.gtr-header__gnb__menu .selected {
    position: relative;
}
.gtr-header__gnb__menu .selected:after {
    content: '';
    background: #ef801b;
    width: 100%;
    height: 4px;
    position: absolute;
    bottom: -33px;
    left: 50%;
    transform: translateX(-50%);
}
.gtr-header__gnb__menu-item {
    margin-right: 40px;
    height: 100%;
}

.gtr-header__gnb__menu-item:last-child {
    margin-right: 0;
}

.gtr-header__gnb__menu-item a {
    color: #111;
    font-weight: 500;
}

.gtr-header__gnb__menu-item--button {
    padding: 10px 15px;
    background: #ef801b;
    border-radius: 4px;
}

.gtr-header__gnb__menu-item--button a {
    color: #fff;
}

.mobile-container{
    display: none;
}

.mobile-container {
    width: 100%;
    margin: auto;
    height: auto;
  }
  
  .topnav {
    overflow: hidden;
    position: relative;
  }
  
  .topnav #myLinks {
    display: none;
    background-color: #efefef;
  }
  
  .topnav a {
    color: #222;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 17px;
    display: block;
    border-bottom: 1px solid #ccc;
  }

  #myLinks a {
    color: #222;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 17px;
    display: block;
    text-align: right;
  }
  
  .topnav a.icon {
    display: block;
    position: absolute;
    right: 0;
    top: 20px;
    font-size: 28px;
    margin: 0;
    border-bottom: none;
    color: inherit;
  }

.gtr-main {
    width: 100%;
    font-size: 14px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.gtr-main__mainvisual {
    width: 100%;
    margin-bottom: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.gtr-main__mainvisual img {
    width: 100%;
}

.gtr-main__section-banner {
    margin-bottom: 80px;
}

.gtr-main__section-banner__wrapper {
    display: flex;
    justify-content: space-between;
}

.gtr-main__section-banner__item {
    width: 310px;
    height: 372px;
    background: #eee;
}
.gtr-main__section-comm__content__title {
    font-weight: 700;
}
.gtr-main__section-banner__item--2gird {
    width: 640px;
}

.gtr-main__section-comm {
    margin-bottom: 90px;
}

.gtr-main__section-comm__title {
    font-size: 20px;
    color: #365066;
}

.gtr-main__section-comm__content {
    display: flex;
    justify-content: space-between;
}
.gtr-main__section-comm__content__list {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 400px;
    flex-wrap: wrap;
}

.gtr-main__section-comm__content__item {
    width: 420px;
    display: flex;
    height: 110px;
    margin-bottom: 20px;
    align-items: flex-start;
    border-bottom: 2px solid #f6f6f6;
}

.gtr-main__section-comm__item--textarea {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.gtr-main__section-comm__content__item > img {
    width: 90px;
    height: 90px;
    margin-right: 20px;
    background: #eee;
}

.gtr-main__section-comm__content__item--one {
    width: 420px;
    display: flex;
    flex-direction: column;
    height: auto;
    border-bottom: none;
    margin-right: 20px;
}

.gtr-main__section-comm__content__item--one > img {
    width: 420px;
    height: 244px;
    margin: 0 0 10px 0;
}

.gtr-main__article-shop__title {
    font-size: 20px;
    color: #365066;
}

.gtr-main__section-comm__content__date {
    margin-bottom: 10px;
    display: block;
}

.gtr-main__section-comm__wrapper {
    display: flex;
    justify-content: space-between;
}

.gtr-main__section-comm__wrapper__innerwrapper {
    width: 860px;
}
.gtr-main__section-comm__commmenu {
    display: flex;
    position: relative;
}

.gtr-main__section-comm__commmenu:after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: #f6f6f6;
    left: 0;
    bottom: 0;
    z-index: 1;
}

.gtr-main__section-comm__header {
    margin-bottom: 30px;
}

.gtr-main__section-comm__title {
    margin-bottom: 20px;
}

.gtr-main__section-comm__commmenu-item {
    position: relative;
    width: 200px;
    height: 36px;
    font-size: 14px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.gtr-main__section-comm__commmenu-item--selected:after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: #ef801b;
    left: 0;
    bottom: 0;
    z-index: 2;
}

.gtr-main__article-shop__header:after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: #f6f6f6;
    left: 0;
    bottom: 0;
}

.gtr-main__article-shop {
    width: 310px;
    font-size: 14px;
}

.gtr-main__article-shop__header {
    position: relative;
    display: flex;
    margin-bottom: 5px;
    justify-content: space-between;
}

.gtr-main__article-shop__title {
    margin-bottom: 20px;
}

.gtr-main__article-shop__header--column {
    height: 36px;
    font-size: 14px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.gtr-main__article-shop__content__item {
    display: flex;
    height: 32px;
    align-items: center;
    justify-content: space-between;
}

.gtr-main__section-bestnasmo {
    margin-bottom: 110px;
}

.gtr-main__section-bestnasmo__title {
    font-size: 20px;
    color: #365066;
    margin-bottom: 30px;
}

.gtr-main__section-bestnasmo__content__list {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.gtr-main__section-bestnasmo__content__item {
    font-size: 14px;
}

.gtr-main__section-bestnasmo__content__item--img {
    background: #eee;
    width: 200px;
    height: 200px;
    margin-bottom: 10px;
}

.gtr-main__section-bestnasmo__content__item--text--category {
    display: block;
    margin-bottom: 10px;
}

.gtr-main__section-bestnasmo__content__item--text--title {
    display: block;
    font-weight: 700;
}

/* navbar */
.navbar {
    display: none;
}

.navbar {
    width: 100%;
    background-color: #555;
    overflow: auto;
    flex-direction: column;
  }
  
  .navbar a {
    float: left;
    padding: 12px;
    color: white;
    text-decoration: none;
    font-size: 17px;
    width: 25%; /* Four links of equal widths */
    text-align: center;
  }
  
  .navbar a:hover {
    background-color: #000;
  }
  
  .navbar a.active {
    background-color: #04AA6D;
  }

.gtr-footer {
    background: #365066;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-size: 14px;
    margin-top: 120px;
}

.gtr-footer__innerwrapper {
    padding-top: 30px;
    padding-bottom: 60px;
}

.gtr-footer__sitemap {
    display: flex;
}

.gtr-footer__company {
    width: 420px;
    margin-right: 20px;
}

.gtr-footer__title {
    margin-bottom: 20px;
}

.gtr-footer__address,
.gtr-footer__tel,
.gtr-footer__fax {
    margin-bottom: 5px;
}

.gtr-footer__consulting--button {
    background: #ef801b;
    color: #fff;
    display: inline-block;
    border-radius: 4px;
    margin-top: 20px;
    font-weight: 700;
    padding: 10px 15px;
}

.gtr-footer__sitemap--title {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 20px;
}

.gtr-footer__sitemap--column {
    margin-right: 40px;
    width: 100px;
}

.gtr-footer__sitemap--item {
    margin-bottom: 10px;
}

.gtr-footer__sitemap--item a {
    color: #fff;
}
.gtr-footer__copy {
    width: 100%;
    background: #2f373e;
    color: #fff;
    height: 62px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.gtr-footer--column {
    display: flex;
}

.gtr_sub_visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.gtr_sub_title {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.gtr_sub_title span {
    font-size: 14px;
    opacity: 0.6;
}

.gtr_sub_content_section {
    padding: 100px 80px;
    width: 100%;
}

.gtr_sub_content_section h4 {
    font-size: 24px;
    padding: 10px 0;
    border-bottom: 1px solid #d8d8d8;
    margin-bottom: 40px;
}

.gtr_sub_title span:first-child {
    font-size: 42px;
    opacity: 1;
    font-weight: 600;
}

.gtr_sub_content {
    display: flex;
    width: 100%;
    max-width: 1300px;
}

.gtr_sub_nav {
    width: 200px;
    flex-shrink: 0;
}

.gtr_sub_nav_header {
    background: #365066;
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 50px 20px;
}

.gtr_sub_nav_header p {
    color: #fff;
    opacity: 0.4;
    font-size: 14px;
}
.gtr_sub_nav_header p:first-child {
    opacity: 1;
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 10px;
}

.gtr_sub_nav_list li {
    border-bottom: 1px solid #d8d8d8;
}

.gtr_sub_nav_list li a {
    font-size: 16px;
    color: #365066;
    width: 100%;
    height: 100%;
    display: block;
    padding: 20px 15px;
}

.gtr_sub_nav_list .active a {
    color: #ef801b;
    font-weight: 600;
}

.gtr_sub {
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
}

.gtr_sub_h5 {
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 20px;
}

.gtr_sub_h5--point {
    position: relative;
    padding-left: 15px;
}

.gtr_sub_h5--point::after {
    position: absolute;
    width: 5px;
    height: 100%;
    background: #ef801b;
    top: 0;
    left: 0;
    content: '';
}

.gtr_sub_point li {
    display: flex;
    margin-bottom: 20px;
}

.gtr_sub_point li img {
    margin-right: 20px;
}

.gtr_sub_point_text {
    padding-top: 10px;
}

.gtr_sub_point_text--title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}
.gtr_sub_p {
    font-size: 16px;
    font-weight: 400;
}

.gtr_sub_p mark {
    background: transparent;
    color: #ef801b;
}

.marginA {
    margin-bottom: 30px;
}
.marginB {
    margin-bottom: 60px;
}

.sub_content_2col {
    display: flex;
    justify-content: space-between;
}

.sub_content_2col img {
    width: 45%;
    max-height: 580px;
}

/* .sub_content_2col {
} */

.gtr_sub_h5--color {
    color: #ef801b;
}

.sub_text_area {
    width: 45%;
}

.sub_text_area > ul > li {
    position: relative;
    padding-left: 10px;
    margin-bottom: 5px;
    font-size: 14px;
}

.sub_text_area > ul > li::after {
    content: '';
    position: absolute;
    width: 3px;
    height: 3px;
    background: #ef801b;
    border-radius: 100%;
    top: 10.5px;
    left: 0;
}

.sub_history {
    position: relative;
    padding-left: 100px;
}

.sub_history::after {
    z-index: -1;
    content: '';
    position: absolute;
    width: 1px;
    background: #e6e6e6;
    height: 88%;
    top: 10.5px;
    left: 30px;
}

.sub_history > li h5 {
    position: relative;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
}

.sub_history > li h5::after {
    content: '';
    position: absolute;
    width: 5px;
    height: 5px;
    top: 10px;
    left: -75px;
    border-radius: 100%;
    background: #fff;
    border: 3px solid #ef801b;
}

.sub_history > li > ul > li {
    margin-bottom: 10px;
}

.sub_history > li > ul > li > mark {
    background: transparent;
    font-weight: 600;
    color: #1a1a1a;
    margin-right: 10px;
}

.sub_content_2col_item {
    width: 49%;
}

.sub_content_2col_item img {
    width: 100%;
}

.__bold {
    font-weight: 700;
    color: #1b1b1b;
}

.alignCenter {
    align-items: center;
}

.sensor_imgTitle:nth-child(1) {
    max-width: 267px;
}

.sensor_imgTitle:nth-child(2) {
    max-width: 351px;
}
.sensor_imgTitle:nth-child(3) {
    max-width: 349px;
}

.process_list .gtr_sub_h5 {
    margin-top: 30px;
}

.process_list .gtr_sub_p {
    padding-left: 15px;
}

.gtr_sub_p--color {
    color: #ef801b;
}
.gtr_sub_p--bluedot {
    position: relative;
}
.gtr_sub_p--bluedot::after {
    content: '';
    position: absolute;
    top: 10.5px;
    left: 0;
    width: 5px;
    height: 5px;
    border-radius: 100%;
    background: #2f373e;
}

.sub_login_form {
    display: flex;
    flex-direction: column;
}

.sub_login_form label,
.sub_inquiry_form label {
    margin-bottom: 10px;
}

.sub_login_form input,
.sub_inquiry_form input {
    max-width: 340px;
    padding: 10px 15px;
}

.sub_login_form .sub_button,
.sub_inquiry_form .sub_button {
    padding: 10px 20px;
    background: #ef801b;
    color: #fff;
    border-radius: 6px;
    outline: none;
    appearance: none;
    border: none;
    margin-bottom: 20px;
}

.sub_inquiry_form .sub_button--gray {
    background: #d8d8d8;
}

.sub_inquiry_form .sub_content_2col_item {
    display: flex;
    flex-direction: column;
}

@media all and (max-width: 1024px) {
    .gtr-header__gnb__inner-wrapper {
        padding: 30px;
    }
}
@media all and (min-width:767px) and (max-width: 900px) {
    .gtr-header__gnb__inner-wrapper {
        padding: 30px;
    }
    .gtr-header__gnb__menu-item {
        margin-right: 20px;
        height: 100%;
    }
}
@media all and (min-width:320px) and (max-width: 767px) {
    body{
        overflow-x: hidden;
    }
    body::-webkit-scrollbar { 
        display: none; 
    }

    .gtr-header__top--membermenu {
        width: 93%;
    }

    .gtr-main  {
        display: block;
    }
    .gtr-header__gnb__inner-wrapper {
        padding: 30px;
    }
    .gtr-header__gnb__menu-item {
        margin-right: 20px;
        height: 100%;
    }
    .gtr-header__gnb{
        display: none;
    }
    .mobile-container {
        display: block;
    }
    /* header end */

    .gtr-main__mainvisual {
        width: 100%;
        margin-bottom: 10px;
        display: flex;
    }
    .gtr-main__mainvisual img {
        width: 100%;
    }

    .gtr-main__section-banner {
        margin-bottom: 10px;
    }
    .gtr-main__section-banner__item {
        width: 100%;
        height: 110px;
    }
    .gtr-main__section-banner__item img {
        width: 100%;
        height: 110px;
    }

    .sub_section {
        width: 100%;
    }
    .gtr-main__section-comm {
        margin-bottom: 10px;
    }

    .gtr-main__section-comm {
        margin-bottom: 90px;
    }
    
    .gtr-main__section-comm__header{
        width: 90%;
        margin: 0 auto;
    }
    .gtr-main__section-comm__wrapper__innerwrapper {
        width: 100%;
    }
    .gtr-main__section-comm__content__list {
        width: 90%;
        margin: 0 auto;
        height: auto;
    }
    .commu {
        margin-top: 10px;
    }
    .gtr-main__section-comm__commmenu {
        width: 100%;
    }
    .gtr-main__section-comm__commmenu-item {
        width: 100%;
    }
    .gtr-main__section-comm__content {
        width: 100%;
        margin-top: 15px;
    }
    .list {
        column-count: auto;
        display: inline-block;
    }
    .gtr-main__section-comm__content__item {
        width: 100%;
    }
    .gtr-main__section-comm__content__item--one > img {
        width: 100%;
        margin: 0 0 10px 0;
    }
    .gtr-main__section-comm__content__list {
        flex-direction: column;
    }
    .gtr-main__section-comm__content__item--one {
        width: 100%;
    }
    .gtr-main__section-comm__wrapper {
        flex-direction: column;
    }
    
    .gtr-main__article-shop {
        width: 90%;
        margin: 0 auto;
    }
    
    .gtr-footer__company {
        width: 100%;
        margin: 0 auto;
    }
    .gtr-footer__sitemap--column {
        display: none;
    }

    .gtr-footer__company {
        display: flex;
        margin-bottom: -40px;
    }
    .gtr-footer__consulting--button {
        margin-top: 5px;
        margin-left: 170px;
    }
    .box {
        display: flex;
    }

    .gtr-main__section-bestnasmo__title {
        margin-left: 23px;
    }
    .gtr-main__section-bestnasmo__content__list {
        justify-content: space-around;
    }
    .gtr-main__section-bestnasmo__content__item--img {
        margin-top: 10px;
    }
    /* index.php end */
    .gtr_sub_visual img {
        height: 150px;
    }
    .gtr_sub_nav {
        display:  none;
    }
    .gtr_sub_point_text {
        padding-top: 0;
    }
    .gtr_sub_point_text--title {
        font-size: 18px;
    }
    .gtr_sub_p {
        font-size: 14px;
    }
    .gtr_sub_content_section {
        padding: 10px 20px;
    }
    .gtr_sub_point li img {
        width: 146px;
        height: auto;
    }
    .marginB{
        margin-bottom: 0;
    }
    .gtr_sub_title span:first-child {
        font-size: 30px;
    }
    .sub_content_2col {
        flex-direction: column;
        width: 100%;
    }
    .sub_content_2col img {
        width: 80%;
        margin: 0 auto;
        padding-bottom: 20px;
    }
    .sub_content_2col_2 img {
        width: 80%;
        text-align: center;
        margin: 0 auto;
        padding-bottom: 20px;
    }
    .sub_content_2col_3 img {
        width: 70%;
        text-align: center;
        margin: 0 auto;
        padding-bottom: 20px;
        padding-right: 30px;
    }
    .sub_text_area {
        width: 100%;
    }
    .navbar {
        display: block;
        background: none;
        padding: 0;
        height: 50px;
        border-bottom: 1px solid #ccc;
    }
    .navbar a:hover {
        background-color: #5e7384;
        font-weight: bold;
        color: #fff !important;
      }
      
      .navbar a.active {
        background-color: #365066;
        font-weight: bold;
        color: #fff !important;
      }
      .navbar div a {
          color: #333;
      }
    .gtr_sub_content {
        display: block;
    }
}
@media all and (min-width: 481px) and (max-width: 767px) {
}