@media (max-width: 750px) {
  header input[id="hamburger"] + label span {
    display: block;
    position: absolute;
    width: 100%;
    height: 3px;
    background: #fff;
    transition: all 0.35s;
  }
}
.mw {
  width: calc(100% - 8rem);
  margin: 0 auto;
  min-width: 330px;
}

.mt_200 {
  margin-top: 200px;
}
@media screen and (max-width: 750px) {
  .mt_200 {
    margin-top: 26.6667vw;
  }
}

.content_wrap_1280 {
  max-width: 1280px;
  margin: 0 auto;
}
@media screen and (max-width: 750px) {
  .content_wrap_1280 {
    max-width: none;
    margin: 0 6.6667vw;
  }
}
.content_wrap_full {
  width: 100%;
}

.mobile_only {
    display: none;
  }
@media screen and (max-width: 750px) {
  .pc_only {
    display: none;
  }
  .mobile_only {
    display: block;
  }
}

h1, h2, h3, p, span {
  line-height: normal;
}

@media screen and (max-width: 750px) {
  p {
    word-break: keep-all;
  }
}

.gray {
  color: #ccc;
}
.red {
  color: #C31A21;
}

.fixbtn {
  color: #fff;
  position: fixed;
  right: 80px;
  bottom: 40px;
  z-index: 99999;
  display: flex;
  gap: 8px;
  flex-direction: column;
  display: none;
}
.fixbtn.on {
  display: block;
}
.fixbtn > a {
  background-color: transparent;
  border: none;
  cursor: pointer;
  background-color: #000;
  opacity: 25%;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  transition: 0.3s;
}
.fixbtn > a:hover {
  background-color: #d42020;
  opacity: 80%;
}
.fixbtn .fbutton .up {
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  display: var(--fa-display, inline-block);
  font-style: normal;
  font-variant: normal;
  line-height: 1;
  text-rendering: auto;
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: #fff;
  font-size: 20px;
}
.fa-arrow-up:before {
  content: "\f062";
}
@media screen and (max-width: 750px) {
  .fixbtn {
    right: 20px;
  }
  .fixbtn > a:hover {
    background-color: #000;
    opacity: 25%;
  }
}

.top_banner_wrap {
  width: 100%;
  position: relative;
  overflow: hidden;
  aspect-ratio: 1920/1080;
}
@media screen and (max-width: 750px) {
  .top_banner_wrap {
    aspect-ratio: 750/1334;
    height: 100dvh;
  }
}
.top_banner_wrap > .top_banner_video {
  width: calc(100% + 2px);
  object-fit: cover;
}
@media screen and (max-width: 750px) {
  .top_banner_wrap > .top_banner_video {
    height: 100%;
    aspect-ratio: 2371.56/1334.00;
  }
}
/* .top_banner_wrap > img {
  width: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: scale(1.1);
  offset-path: path("M 0 0 m -10, 0 a 10,10 0 1,0 20,0 a 10,10 0 1,0 -20,0");
  offset-rotate: 0deg;
  animation: circleMove 10s linear infinite;
}

@keyframes circleMove {
  0%   { offset-distance: 0%; }
  100% { offset-distance: 100%; }
}*/


.top_banner_wrap .banner_text_wrap {
  position: absolute;
  top: 50%;
  left: 60%;
  transform: translate(-50%, -50%);
  width: 1280px;
  opacity: 0;
  animation: 1s fadeIn forwards;
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateX(calc(-50% + 300px)) translateY(-50%);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(-50%);
  }
}
.top_banner_wrap .banner_text_wrap .banner_sub_text {
  color: #fff;
  font-size: 2.6vw;
  font-weight: 400;
  line-height: 1.35;
}
@media screen and (max-width: 750px) {
  .top_banner_wrap .banner_text_wrap {
    top: 50%;
    left: 50%;
    width: auto;
    text-align: center;
  }
  .top_banner_wrap .banner_text_wrap .banner_sub_text {
    font-size: 4.8vw;
    white-space: nowrap;
  }
}
.top_banner_wrap .banner_text_wrap .banner_main_image_wrap {
  margin-top: 10.8%;
  position: relative;
}
.top_banner_wrap .banner_text_wrap .banner_main_image_wrap > .sub_img {
  width: 75.6%;
}
.top_banner_wrap .banner_text_wrap .banner_main_image_wrap > .main_img {
  width: 77.2%;
  position: absolute;
  top: -64.5%;
  left: -11.4%;
}
@media screen and (max-width: 750px) {
  .top_banner_wrap .banner_text_wrap .banner_main_image_wrap {
    margin-top: 16vw;
    left: 32.5333vw;
  }
  .top_banner_wrap .banner_text_wrap .banner_main_image_wrap > .sub_img {
    width: auto;
    height: 20.6667vw;
  }
  .top_banner_wrap .banner_text_wrap .banner_main_image_wrap > .main_img {
    width: auto;
    height: 20.6667vw;
    left: -13.5%;
  }
}

.title_animation {
  position: relative;
}
.title_animation > .fill_mask {
  color: #E5E5E5;
  font-size: 120px;
  font-weight: 800;
  line-height: 1.08;
  text-transform: uppercase;
}
.title_animation > .fill_mask::after {
  content: "x-CORE\aPLATFORM";
  position: absolute;
  top: 0;
  left: 0;
  color: #202020;
  width: 0;
  white-space: pre;
  overflow: hidden;
}
.title_animation > .fill_mask.on::after {
  animation: titleAnimation 1.5s forwards;
}
@keyframes titleAnimation {
  to {
    width: 100%;
  }
}
@media screen and (max-width: 750px) {
  .title_animation > .fill_mask {
    font-size: 13.3333vw;
    line-height: 1;
  }
}

.text_content_wrap {
  margin-top: 60px;
}
.text_content_wrap .text_content {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.6;
  opacity: 0;
  position: relative;
  top: 50px;
}
.text_content_wrap .text_content.on {
  animation: 1s fadeInUpText forwards;
}
@keyframes fadeInUpText {
  to {
    opacity: 1;
    top: 0;
  }
}
.text_content_wrap .text_content.gray {
  color: #999;
}
.text_content_wrap .text_content.gray > .bold {
  color: #202020;
}
@media screen and (max-width: 750px) {
  .text_content_wrap {
    margin-top: 8vw;
  }
  .text_content_wrap .text_content {
    font-size: 4vw;
  }
}

.img_content_wrap {
  margin: 200px 0 160px;
}
@media screen and (max-width: 750px) {
  .img_content_wrap {
    margin: 17.3333vw 0;
  }
}
.img_content_wrap > ul > li {
  display: flex;
  gap: 80px;
  position: relative;
}
.img_content_wrap > ul > li + li {
  margin-top: 200px;
}
@media screen and (max-width: 750px) {
  .img_content_wrap > ul > li {
    flex-direction: column;
    gap: 10.6667vw;
  }
  .img_content_wrap > ul > li.reverse_mobile {
    flex-direction: column-reverse;
  }
  .img_content_wrap > ul > li + li {
    margin-top: 17.3333vw;
  }
}
.img_content_wrap .img_wrap,
.img_content_wrap .text_wrap {
  position: relative;
  will-change: transform;
}
.img_content_wrap .img_wrap {
  width: 600px;
  overflow: hidden;
}
@media screen and (max-width: 1280px) {
  .img_content_wrap .img_wrap {
    width: 53.3333vw;
  }
  .img_content_wrap > ul > li {
    gap: 40px;
  }
}
@media screen and (max-width: 750px) {
  .img_content_wrap .img_wrap {
    width: 100%;
  }
}
.img_content_wrap .img_wrap > img {
  width: 100%;
  transform: scale(1.1);
  opacity: 0.5;
}
.img_content_wrap .img_wrap > img.show {
  animation: scaleOnce 1s ease forwards;
}
/* 애니메이션 정의 */
@keyframes scaleOnce {
  0%   { transform: scale(1.1); opacity: 0.5; }
  100% { transform: scale(1); opacity: 1; }
}

.img_content_wrap.xcore .text_wrap .title,
.img_content_wrap.xcore .text_wrap .sub_title,
.img_content_wrap.xcore .text_wrap .content {
  opacity: 0;
  position: relative;
  top: 50px;
}
.img_content_wrap.xcore .text_wrap .title.on,
.img_content_wrap.xcore .text_wrap .sub_title.on,
.img_content_wrap.xcore .text_wrap .content.on {
  animation: 1s fadeInUpText forwards;
}

.img_content_wrap .text_wrap {
  width: calc(100% - 680px);
}
.img_content_wrap .text_wrap .title {
  color: #202020;
  font-size: 64px;
  font-weight: 700;
  margin-top: 60px;
}
.img_content_wrap .text_wrap .sub_title {
  color: #202020;
  font-size: 20px;
  font-weight: 700;
  margin-top: 60px;
}
.img_content_wrap .text_wrap .content {
  color: #202020;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.6;
  margin-top: 20px;
  white-space: pre-line;
}
@media screen and (max-width: 1280px) {
  .img_content_wrap .text_wrap {
    width: calc(100% - 53.3333vw);
  }
}
@media screen and (max-width: 750px) {
  .img_content_wrap .text_wrap {
    width: 100%;
  }
  .img_content_wrap .text_wrap .title {
    margin-top: 0;
    font-size: 8.5333vw;
  }
  .img_content_wrap .text_wrap .sub_title {
    font-size: 3.7333vw;
    margin-top: 8vw;
  }
  .img_content_wrap .text_wrap .content {
    font-size: 3.7333vw;
  }
}

.content_wrap_full:has(.digital_trans_wrap) {
  position: relative;
  overflow: hidden;
  width: 100%;
}
.content_wrap_full:has(.digital_trans_wrap) > img {
  height: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: scale(1.1);
  /* 좌우로 완만하게 움직이는 경로 */
  offset-path: path("M 0 0 L 20 0");
  offset-rotate: 0deg; /* 회전 없음 */
  animation: slideLine 4s ease-in-out infinite alternate;
}
@keyframes slideLine {
  0%   { offset-distance: 0%; }
  100% { offset-distance: 100%; }
}
@media screen and (max-width: 750px) {
  .content_wrap_full:has(.digital_trans_wrap) {
    aspect-ratio: unset;
    width: 100%;
    max-height: unset;
  }
  .content_wrap_full:has(.digital_trans_wrap) > img {
    height: 100%;
  }
}

.digital_trans_wrap {
  margin: 0 auto;
  padding: 160px 0;
  max-width: 1280px;
}
@media screen and (max-width: 750px) {
  .digital_trans_wrap {
    padding: 13.3333vw 6.6667vw;
  }
}

.digital_trans_wrap .title_animation .fill_mask {
  color: #303030;
}
.digital_trans_wrap .title_animation > .fill_mask::after {
  content: "Digital\atransformation";
  color: #fff;
}
@media screen and (max-width: 1100px) {
  .digital_trans_wrap .title_animation .fill_mask {
    font-size: 9.375vw;
  }
  .digital_trans_wrap .title_animation > .fill_mask::after {
    font-size: 9.375vw;
  }
}
@media screen and (max-width: 750px) {
  .digital_trans_wrap .title_animation > .fill_mask.mobile_only {
    font-size: 13.3333vw;
  }
  .digital_trans_wrap .title_animation > .fill_mask.mobile_only::after {
    font-size: 13.3333vw;
    content: "Digital\atrans-\a formation";
  }
}

.digital_trans_wrap .text_content {
  margin-top: 60px;
  position: relative;
}
.digital_trans_wrap .text_content p {
  color: #B3B3B3;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.6;
}
@media screen and (max-width: 750px) {
  .digital_trans_wrap .text_content {
    margin-top: 8vw;
  }
  .digital_trans_wrap .text_content p {
    font-size: 4vw;
  }
}
.digital_trans_wrap .text_content p .bold {
  color: #fff;
}
.digital_trans_wrap .content_list {
  margin-top: 80px;
}
.digital_trans_wrap .content_list > ul {
  display: flex;
  gap: 30px;
}
@media screen and (max-width: 750px) {
  .digital_trans_wrap .content_list {
    margin-top: 21.3333vw;
  }
  .digital_trans_wrap .content_list > ul {
    display: flex;
    gap: 4vw;
    width: min-content;
  }
}
.digital_trans_wrap .content_list > ul > li {
  width: 100%;
  aspect-ratio: 1/1;
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(50px);
}
@media screen and (max-width: 1100px) {
  .digital_trans_wrap .content_list > ul > li {
    aspect-ratio: unset;
  }
}
@media screen and (max-width: 750px) {
  .digital_trans_wrap .content_list > ul > li {
    width: 50.6667vw;
    height: auto;
  }
}
/* show 클래스가 붙으면 애니메이션 실행 */
.content_list ul li.show {
  animation: fadeUp 0.6s ease forwards;
}
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
/* 순차 딜레이 */
.content_list ul li:nth-child(1).show { animation-delay: 0.1s; }
.content_list ul li:nth-child(2).show { animation-delay: 0.3s; }
.content_list ul li:nth-child(3).show { animation-delay: 0.5s; }
.content_list ul li:nth-child(4).show { animation-delay: 0.7s; }

.digital_trans_wrap .content_list .content_wrap {
  width: 100%;
  height: 100%;
  padding: 30px 22px;
  border: 1px solid #fff;
}
.digital_trans_wrap .content_list .content_wrap > h4 {
  color: #FFF;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: -0.2px;
}
.digital_trans_wrap .content_list .content_wrap > p {
  color: #BBB;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
  margin-top: 16px;
}
@media screen and (max-width: 750px) {
  .digital_trans_wrap .content_list .content_wrap {
    padding: 5.3333vw 4vw;
  }
  .digital_trans_wrap .content_list .content_wrap > h4 {
    font-size: 4vw;
  }
  .digital_trans_wrap .content_list .content_wrap > p {
    font-size: 3.4667vw;
    margin-top: 3.2vw;
    word-break: break-all;
  }
}
.digital_trans_wrap .content_list .content_wrap + img {
  width: 102%;
  height: 102%;
  position: absolute;
  top: 50%;
  left: 50%;
  object-fit: cover;
  transition: 0.6s;
  opacity: 0;
  transform: translate(-50%, -50%) scale(1.3);
}
.digital_trans_wrap .content_list.pc_only li:hover > img {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}
.digital_trans_wrap .content_list.mobile_only li:not(.swiper-slide-active) > img {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

@media screen and (max-width: 750px){
  .img_content_wrap.history_wrap > ul > li {
    gap: 17.3333vw;
  }
}

.history_wrap .img_wrap {
  position: sticky;
  top: 160px;
  align-self: flex-start;
}
@media screen and (max-width: 750px) {
  .history_wrap .img_wrap {
    position: static;
    width: 100%;
    aspect-ratio: 650/680;
  }
  .history_wrap .img_wrap > img {
    object-fit: contain;
  }
}
.history_wrap .title_animation > .fill_mask::after {
  content: '스물 네 살, \a디엔아이의 \a새로운 도약'
}
@media screen and (max-width: 750px){
  .history_wrap .title_animation > .fill_mask {
    line-height: 1.2;
  }
  .history_wrap .title_animation > .fill_mask::after {
    line-height: 1.2;
  }
}

.history_wrap .year_project {
  display: flex;
  gap: 30px;
  margin-top: 80px;
}
.history_wrap .year_project .year .year_text,
.history_wrap .year_project .project .project_text {
  color: #999;
  font-size: 22px;
  font-weight: 400;
}
.history_wrap .year_project .year .year_num,
.history_wrap .year_project .project .project_num {
  white-space: nowrap;
}
.history_wrap .year_project .year .year_num > span:first-child,
.history_wrap .year_project .project .project_num > span:first-child {
  color: #202020;
  font-size: 120px;
  font-weight: 700;
}
.history_wrap .year_project .year .year_num > span:first-child {
  display: inline-block;
  width: 150px;
}
.history_wrap .year_project .project .project_num > span:first-child {
  display: inline-block;
  width: 232px;
}
.history_wrap .year_project .year .year_num > span:last-child,
.history_wrap .year_project .project .project_num > span:last-child {
  color: #ccc;
  font-size: 120px;
  font-weight: 100;
  vertical-align: bottom;
}
.history_wrap .small_text {
  margin-top: 80px;
}
.history_wrap .small_text > p:nth-child(1) {
  color: #202020;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.3;
}
.history_wrap .small_text > p:nth-child(2) {
  color: #202020;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  margin-top: 14px;
}
@media screen and (max-width: 750px) {
  .history_wrap .year_project {
    gap: 4vw;
    margin-top: 10.6667vw;
  }
  .history_wrap .year_project .year .year_num > span:first-child,
  .history_wrap .year_project .project .project_num > span:first-child {
    font-size: 16vw;
  }
  .history_wrap .year_project .year .year_num > span:first-child {
    width: 20vw;
  }
  .history_wrap .year_project .project .project_num > span:first-child {
    width: 30.9333vw;
  }
  .history_wrap .year_project .year .year_num > span:last-child,
  .history_wrap .year_project .project .project_num > span:last-child {
    font-size: 16vw;
  }
  .history_wrap .year_project .year .year_text,
  .history_wrap .year_project .project .project_text {
    font-size: 3.4667vw;
  }
  .history_wrap .small_text {
    margin-top: 10.6667vw;
  }
  .history_wrap .small_text > p:nth-child(1) {
    font-size: 3.7333vw;
    line-height: 0.85714;
  }
  .history_wrap .small_text > p:nth-child(2) {
    font-size: 3.4667vw;
    line-height: 1.6;
    margin-top: 2.6667vw;
  }
}

.history_wrap .history_list {
  margin-top: 190px;
}
@media screen and (max-width: 750px) {
  .history_wrap .history_list {
    margin-top: 16vw;
  }
}
.history_wrap .history_list > ul {
  overflow: hidden;
}
.history_wrap .history_list > ul > li + li {
  margin-top: 120px;
}
.history_wrap .history_list ol {
  margin-top: 24px;
}
.history_wrap .history_list ol li {
  display: flex;
}
.history_wrap .history_list ol li + li {
  margin-top: 8px;
}
.history_wrap .history_list ol li::before {
  content: '';
  display: block;
  width: 5px;
  height: 6px;
  background: no-repeat center/contain url(../img/about/history_list_style.svg);
  margin-right: 10px;
  position: relative;
  top: 14px;
}
.history_wrap .history_list h3 {
  color: #202020;
  font-size: 48px;
  font-weight: 700;
}
.history_wrap .history_list ol li > p {
  color: #202020;
  font-size: 22px;
  font-weight: 400;
  line-height: 1.6;
}
@media screen and (max-width: 750px) {
  .history_wrap .history_list > ul > li + li {
    margin-top: 16vw;
  }
  .history_wrap .history_list ol {
    margin-top: 3.2vw;
  }
  .history_wrap .history_list ol li::before {
    top: 2.9333vw;
    width: 3px;
    height: 3px;
  }
  .history_wrap .history_list ol li + li {
    margin-top: 1.0667vw; 
  }
  .history_wrap .history_list h3 {
    font-size: 7.4667vw;
  }
  .history_wrap .history_list ol li > p {
    font-size: 3.7333vw;
  }
}
.history_wrap .history_list .more_history {
  margin-top: 120px;
}
.history_wrap .history_list .more_history button {
  width: 100%;
  height: 38px;
  border: none;
  background: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.history_wrap .history_list .more_history button::after {
  content: '';
  display: block;
  width: 10px;
  height: 5px;
  background: no-repeat center/contain url(../img/about/arrow_down_small.svg);
  margin-left: 4px;
}
.history_wrap .history_list .more_history button.on::after {
  transform: rotate(180deg);
}
.history_wrap .history_list .more_history button > span {
  color: #202020;
  font-size: 14px;
  font-weight: 800;
  line-height: 38px;
}
@media screen and (max-width: 750px) {
  .history_wrap .history_list .more_history {
    margin-top: 16vw;
  }
  .history_wrap .history_list .more_history button {
    height: 5.0667vw;
  }
  .history_wrap .history_list .more_history button::after {
    width: 2.1333vw;
    height: 1.0667vw;
    margin-left: 1.3333vw;
  }
  .history_wrap .history_list .more_history button > span {
    font-size: 3.4667vw;
    line-height: 5.0667vw;
  }
}

.bottom_banner_wrap {
  width: 100%;
  max-height: 1080px;
  position: relative;
  margin-bottom: -4px;
  aspect-ratio: 1920/1080;
  background: no-repeat center/cover url(../img/about/bottom_banner_image.png);
  overflow: hidden;
}
@media screen and (max-width: 750px) {
  .bottom_banner_wrap {
    max-height: none;
    aspect-ratio: 750/1334;
  }
}
.bottom_banner_wrap > ul {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transition: transform 0.8s ease;
}
.bottom_banner_wrap > ul > li {
  width: 100%;
  height: 100%;
  position: relative;
}
.bottom_banner_wrap img {
  width: 1405px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.bottom_banner_wrap .title_animation {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  white-space: nowrap;
}
.bottom_banner_wrap .title_animation .fill_mask {
  font-size: 100px;
  color: #303030;
}
.bottom_banner_wrap .title_animation .fill_mask::after {
  font-size: 100px;
  content: '최고의 결과를 위한 \a최적화된 조직 구성';
  color: #fff;
}
@media screen and (max-width: 750px) {
  .bottom_banner_wrap .title_animation .fill_mask {
    font-size: 13.3333vw;
    line-height: 1.2;
    text-align: center;
  }
  .bottom_banner_wrap .title_animation .fill_mask::after {
    font-size: 13.3333vw;
    line-height: 1.2;
    content: '최고의\a결과를 위한\a최적화된\a조직 구성';
    width: 100%;
    left: 50%;
    transform: translateX(-50%);
    clip-path: inset(0 100% 0 0);
  }
  .bottom_banner_wrap .title_animation > .fill_mask.on::after {
    animation: titleAnimationCenter 1.5s forwards;
  }
  @keyframes titleAnimationCenter {
    to {
      clip-path: inset(0 0 0 0);
    }
  }
  .bottom_banner_wrap img {
    width: calc(100% - 100px);
  }
}