@charset "utf-8";

/* 메인 페이지 CSS */

/* 접근성 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Section 01 - 동영상 배경 */
#section01 {
  position: relative;
  width: 100%;
  height: 80vh;
  min-height: 500px;
  max-height: 900px;
  overflow: hidden;
  background: #FFF;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 15% 0px;
  margin-top: 0;
}

@media screen and (max-width: 1440px) {
  #section01 {
    max-height: 700px;
  }
}

@media screen and (max-width: 1024px) {
  #section01 {
    padding: 80px 5% 20px;
  }
}

#section01 .video_bg {
  position: relative;
  width: 100%;
  max-width: 1600px;
  height: 100%;
  max-height: 700px;
  overflow: hidden;
}

#section01 .video_bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: none;
}

/* 비디오 지원하지 않는 브라우저용 fallback */
#section01 .video_bg video:not([src]):not([srcset]) {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

#section01 .video_bg video:not([src]):not([srcset])::after {
  content: "비디오를 불러올 수 없습니다";
  color: white;
  font-size: 18px;
  text-align: center;
}

/* Section 02 - FSW 소개 */
#section02 {
  padding: 120px 15%;
  background: linear-gradient(to bottom, transparent 40%, #f8f9fa 30%);
}

#section02 .text {
  text-align: center;
  margin-bottom: 60px;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 20px;
}

#section02 .text .tit {
  font-size: 46px;
  font-weight: 700;
  color: #000;
  margin-bottom: 35px;
  line-height: 1.2;
}

#section02 .text .txt {
  font-size: 21px;
  font-weight: 400;
  color: #000;
  line-height: 1.8;
  max-width: 1200px;
  margin: 0 auto;
}

#section02 .img_wr {
  max-width: 1500px;
  margin: 0 auto 80px;
  padding: 0 100px;
}

#section02 .img_wr.df {
  display: flex;
  gap: 10px;
}

#section02 .img_wr .half {
  flex: 1;
}

#section02 .img_wr .half img {
  width: 100%;
  height: auto;
  transition: transform 0.3s ease;
}

#section02 .content_wr {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 20px;
}

#section02 .content_wr.df {
  display: flex;
  gap: 40px;
}

#section02 .content_wr .four {
  flex: 1;
  text-align: center;
  padding: 50px 30px;
  transition: all 0.4s ease;
}

#section02 .content_wr .four .img {margin-bottom: 15px;height:60px;display: flex;justify-content: center;align-items: center;}

#section02 .content_wr .four img {
  width: 60px;
  height: auto;
  transition: transform 0.3s ease, filter 0.3s ease;
}

#section02 .content_wr .four .tit {
  font-size: 21px;
  font-weight: 600;
  line-height: 1.5;
}

/* Section 03 - 비교 테이블 */
#section03 {
  padding: 80px 0;
  background: #fff;
}

.comparison_section {
  padding: 0 15%;
}


@media screen and (max-width: 1024px) {
  .comparison_section {
    padding: 0 5%;
  }
}

.comparison_section .tit {
  text-align: center;
  font-size: 36px;
  font-weight: 700;
  color: #000;
  margin-bottom: 50px;
}

.comparison_table {
  background: #fff;
  overflow: hidden;
  margin: 0 auto;
}

.comparison_table table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
}

.comparison_table thead th {
  background: #dcdcdc;
  color: #333;
  font-size: 23px;
  font-weight: 600;
  padding: 15px 15px;
  text-align: center;
  border-top: 2px solid #959595;
  border-bottom: 1px solid #ddd;
  border-top: 2px solid #959595;
  border-left: none;
  border-right: none;
}

.comparison_table thead th:nth-child(2) {
  background: #e5e5e5;
  font-weight: 700;
  border-left: 1px solid #ddd;
  border-right: 1px solid #ddd;
}

.comparison_table tbody td {
  padding: 17px 20px;
  font-size: 21px;
  line-height: 1.5;
  color: #333;
  border-top: 1px solid #ddd;
  border-bottom: 1px solid #ddd;
  border-left: none;
  border-right: none;
  text-align: center;
  vertical-align: middle;
  background: #ffffff;
}

.comparison_table tbody td:nth-child(2) {
  background: #fafafa;
  /* font-weight: 600; */
  color: #555;
  border-left: 1px solid #ddd;
  border-right: 1px solid #ddd;
}

.comparison_table tbody tr:nth-child(even) {
  background: #fafafa;
}

.comparison_table tbody tr:last-child td {
  border-bottom: 2px solid #959595;
}

.comparison_table tbody tr:hover {
  background: #f0f7ff;
}

/* Section 03 반응형 디자인 */
@media screen and (max-width: 768px) {
  #section03 {
    padding: 60px 0;
  }
  
  .comparison_section {
  }
  
  .comparison_section .tit {
    font-size: 24px;
    margin-bottom: 30px;
  }
  
  .comparison_table thead th {
    font-size: 14px;
    padding: 15px 10px;
  }
  
  .comparison_table tbody td {
    font-size: 13px;
    padding: 15px 12px;
    line-height: 1.4;
  }
}

@media screen and (max-width: 480px) {
  .comparison_section .tit {
    font-size: 20px;
    margin-bottom: 25px;
  }
  
  .comparison_table thead th {
    font-size: 12px;
    padding: 12px 8px;
  }
  
  .comparison_table tbody td {
    font-size: 11px;
    padding: 12px 8px;
  }
  
  .comparison_table {
  }
}

.comparison_table tbody tr:nth-child(even) {
  background: #fafafa;
}

.comparison_table tbody tr:hover {
  background: #f0f7ff;
  transition: background-color 0.3s ease;
}

/* Section 04 - FSW 레퍼런스 */
#section04 {
  padding: 0 0 200px;
}

.reference_section {
  margin: 0 auto;
  padding: 0 15%;
}

@media screen and (max-width: 1024px) {
  .reference_section {
    padding: 0 5%;
  }
}

.reference_section .tit {
  text-align: center;
  font-size: 44px;
  font-weight: 700;
  color: #000;
  margin-bottom: 60px;
}

.reference_grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  /* gap: 5% 100px; */
  /* margin-bottom: 25%; */
  /* overflow: hidden; */
}

.reference_item {
  background: #fff;
  margin: 0 80px 50px 0;
}
.reference_item.one_view {
  display: flex;
  align-items: start;
  gap: 20px;
  padding: 20px 0px 0px;
}

.reference_item:nth-child(1), .reference_item:nth-child(2) {
  border-top: 1px solid #959595;
}

.reference_header {
  padding: 20px 0px 15px;
  background: #fff;
  display: flex;
  flex-wrap: wrap;
  align-items: end;
}

.reference_item.one_view .reference_header {
  padding: 0px 0px 15px;
  flex: 0 1 calc(50% - 10px);
}

.reference_item.one_view .reference_images {
  flex: 0 1 calc(50% - 10px);
  min-height: 180px;
}

.reference_item.one_view .reference_images img {
  width: 100%;
  height: 100%;
}

.spec_badge {
  display: inline-block;
  padding: 6px 20px;
  font-size: 23px;
  font-weight: 500;
  position: relative;
}

.spec_badge:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 30%; /* 글자 높이의 60%만 선 표시 */
  background-color: #000;
}

.spec_title {
  display: inline-block;
  padding: 6px 13px 6px 0;
  font-size: 26px;
  font-weight: 700;
}

.reference_images {
  display: flex;
  gap: 20px;
  width: 100%;
}

.reference_images img {
  flex: 1;
  width: calc(50% - 10px);
  height: 100%;
  object-fit: cover;
}

.reference_images img[src*="placeholder"] {
  background: #f8f9fa;
  display: flex;
  align-items: center;
  justify-content: center;
}

.reference_images img[src*="placeholder"]::after {
  content: "이미지 준비중";
  color: #6c757d;
  font-size: 14px;
}

/* 추가 레퍼런스 항목 애니메이션 */
.additional_reference {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.5s ease;
}

.additional_reference.show {
  opacity: 1;
  transform: translateY(0);
}

/* 부드러운 스크롤을 위한 전체 페이지 설정 */
html {
  scroll-behavior: smooth;
}

.reference_button_wrap {
  text-align: center;
}

.btn_more_references {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 60px;
  background: #fff;
  color: #000;
  border: 1px solid #000;
  border-radius: 35px;
  font-size: 25px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}
@media screen and (max-width: 2000px) and (min-width: 1440px) {
  .reference_item.one_view .spec_title {  flex: 0 1 100%;  }
  .reference_item.one_view .spec_badge:nth-child(2) {padding-left:0px;}
}
@media screen and (max-width: 1440px) {
  .reference_item:nth-child(2) {
  border-top: unset;
  }
}

/* 반응형 디자인 */
@media screen and (max-width: 1200px) {
  #section02 .img_wr,
  #section02 .content_wr {
    padding: 0px;
  }
  
  #section02 .content_wr .four {
    padding: 30px 15px;
  }
}

@media screen and (max-width: 1440px) {
  .reference_grid {
    grid-template-columns: 1fr;
    gap: 40px;
    margin-bottom: 50px;
  }
  
  .reference_item {
    width: 100%;
    margin: 0 auto;
  }
  
  .reference_item.one_view {
  }
  
  .reference_item.one_view .reference_header {
  }
  
  .reference_item.one_view .reference_images {
    flex: 0 1 calc(50% - 10px);
  }

  .reference_item.one_view .reference_images.hidden {display:block !important;}
}


@media screen and (max-width: 1024px) {
  #section02 {padding: 120px 5%;}

  #section02 .text .tit {font-size:40px;}
  .comparison_section .tit{font-size:34px;}
  .reference_section .tit{font-size:34px;}
  
  #section02 .text .txt {font-size:19px;}
  #section02 .content_wr .four .tit{font-size:19px;}
  .comparison_table thead th{font-size:19px;}
  .comparison_table tbody td{font-size:19px;}
  .spec_badge{font-size:19px;}
  .btn_more_references{font-size:19px;}

}


@media screen and (max-width: 768px) {
  #section01 {
    height: 50vh;
    min-height: 350px;
    padding: 70px 15px 15px;
  }
  
  #section01 .video_bg {
    max-width: 100%;
    max-height: 500px;
  }
  
  #section01 .video_bg video {
    height: 50vh;
    min-height: 300px;
  }
  
  #section02 {
    padding: 80px 0;
  }
  
  #section02 .text {
    margin-bottom: 60px;
    padding: 0 15px;
  }
  
  #section02 .text .tit {
    font-size: 32px;
    margin-bottom: 20px;
  }
  
  #section02 .text .txt {
    line-height: 1.7;
  }
  
  #section02 .img_wr {
    padding: 0 15px;
    margin-bottom: 60px;
  }
  
  #section02 .img_wr.df {
    flex-direction: column;
    gap: 25px;
    align-items: center;
  }
  
  #section02 .content_wr {
    padding: 0 15px;
  }
  
  #section02 .content_wr.df {
    flex-direction: column;
    gap: 25px;
  }
  
  #section02 .content_wr .four {
    padding: 20px 25px;
  }
  
  #section02 .content_wr .four img {
    width: 50px;
    height: auto;
    margin-bottom: 20px;
  }
  
  #section03 {
    padding: 80px 0;
  }
  
  .comparison_section {
  }
  
  .comparison_section .tit {
    font-size: 26px;
    margin-bottom: 40px;
  }
  
  .comparison_table thead th {
    padding: 18px 12px;
  }
  
  .comparison_table tbody td {
    padding: 18px 15px;
    line-height: 1.5;
  }
  
  .comparison_table tbody td:nth-child(2) {
  }
  
  #section04 {
    padding: 80px 0 100px; /* 모바일에서도 하단 패딩 증가 */
  }
  
  .reference_section {
    padding: 0 20px;
  }
  
  .reference_section .tit {
    font-size: 26px;
    margin-bottom: 40px;
  }
  
  .reference_grid {
    gap: 30px;
    margin-bottom: 40px;
  }
  
  .reference_item {
  }
  
  .reference_item.one_view {
    min-height: 200px;
    gap: 15px;
    padding: 6px 0px 6px;
  }
  
  .reference_item.one_view .reference_header {
    flex: 0 1 calc(50% - 7.5px);
  }
  
  .reference_item.one_view .reference_images {
    flex: 0 1 calc(50% - 7.5px);
  }
  
  .reference_header {
    padding: 0px;
  }
  
  .spec_badge {
    padding: 11px 10px;
  }
  
  .reference_images {
    min-height: 200px;
    gap: 15px;
  }

  
  .reference_images img {
  }
}

@media screen and (max-width: 600px) and (min-width: 480px) {
  .reference_item.one_view .spec_title {  flex: 0 1 100%;  }
  .reference_item.one_view .spec_badge:nth-child(2) {padding-left:0px;}
}


@media screen and (max-width: 480px) {
  
  #section01 {
    height: 45vh;
    min-height: 300px;
    padding: 60px 10px 10px;
  }
  
  #section01 .video_bg video {
    height: 40vh;
    min-height: 250px;
  }

    #section02 {
        padding: 50px 0;
    }
  
  #section02 .text .tit {
    font-size: 24px;
    margin-bottom: 15px;
  }
  
  #section02 .text .txt {
    font-size: 16px;
    line-height: 1.6;
  }
  
  #section02 .content_wr .four {
    padding: 15px 20px;
  }
  
  #section02 .content_wr .four img {
    width: 40px;
    height: auto;
    margin-bottom: 15px;
  }
  
  #section02 .content_wr .four .tit {
    font-size: 16px;
    line-height: 1.4;
  }
  
  .comparison_section .tit {
    font-size: 22px;
    margin-bottom: 30px;
  }
  
  .comparison_table {
  }
  
  .comparison_table thead th {
    font-size: 16px;
    padding: 15px 10px;
  }
  
  .comparison_table tbody td {
    font-size: 14px;
    padding: 15px 10px;
  }
  
  .comparison_table tbody td:nth-child(2) {
  }
  
  #section04 {
    padding: 60px 0 80px; /* 480px 화면에서도 하단 패딩 증가 */
  }
  
  .reference_section .tit {
    font-size: 26px;
    margin-bottom: 30px;
  }
  
  .reference_grid {
    gap: 25px;
  }
  
  .reference_header {
    padding: 12px 0px;
  }

  .spec_title {
    font-size:23px;
  }
  
  .spec_badge {
  font-size: 16px;
  }
  
  .reference_images {
    min-height: 160px;
    gap: 12px;
    flex-wrap: wrap;
  }
  
  .reference_images img {
    flex: 0 1 100%;
  }
  .reference_item.one_view {
    gap:0px;
    flex-wrap: wrap;
  }
  .reference_item.one_view .reference_images {
  }
  
  .btn_more_references {
    padding: 12px 30px;
    font-size: 16px;
  }

  .reference_item.one_view .reference_header {
    flex: 0 1 100%;
  }
  
  .reference_item.one_view .reference_images {
    flex: 0 1 100%;
  }
}

/* 애니메이션 효과 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fadeInUp {
  animation: fadeInUp 0.8s ease-out;
}

/* 스크롤 효과 */
.scroll-reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s ease-out;
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

@media screen and (max-width: 320px) {
  #section01 {
    padding: 60px 5px 5px;
    height: 35vh;
    min-height: 250px;
  }

  #section01 .video_bg video {
    height: 25vh;
  }
  
  #section02 {
    padding: 60px 0;
  }
  
  #section02 .text {
    padding: 0 10px;
    margin-bottom: 40px;
  }
  
  #section02 .text .tit {
    font-size: 22px;
    margin-bottom: 12px;
  }
  
  #section02 .text .txt {
    font-size: 14px;
    line-height: 1.5;
  }
  
  #section02 .img_wr {
    padding: 0 10px;
    margin-bottom: 40px;
  }
  
  #section02 .content_wr {
    padding: 0 10px;
  }
  
  #section02 .content_wr .four {
    padding: 25px 15px;
  }
  
  #section02 .content_wr .four .tit {
    font-size: 14px;
  }
  
  #section03 {
    padding: 60px 0;
  }
  
  .comparison_section {
  }
  
  .comparison_section .tit {
    font-size: 18px;
    margin-bottom: 25px;
  }
  
  .comparison_table thead th {
    font-size: 14px;
    padding: 10px 5px;
  }
  
  .comparison_table tbody td {
    font-size: 14px;
    padding: 10px 5px;
  }
  
  .comparison_table tbody td:nth-child(2) {
  }
  
  #section04 {
    padding: 40px 0 60px; /* 320px 화면에서도 하단 패딩 증가 */
  }
  
  .reference_section {
    padding: 0 10px;
  }
  
  .reference_section .tit {
    font-size: 22px;
    margin-bottom: 25px;
  }
  
  .reference_grid {
    gap: 20px;
  }
  
  .reference_header {
  }

  .spec_title {
    font-size:19px;
  }
  
  .spec_badge {
  font-size: 14px;
  }
  
  .reference_images {
    min-height: 130px;
  }
  
  .reference_images img {
  }
  
  .reference_item.one_view .reference_images {
  }
  
  .btn_more_references {
    padding: 10px 25px;
    font-size: 14px;
  }
}

@media screen and (min-width: 1920px) and (max-width: 2559px) {
  #section01 .video_bg {
    max-width: 1800px;
    max-height: 900px;
  }
  
  #section02 .text {
    max-width: 1600px;
  }
  
  #section02 .text .tit {
    font-size: 52px;
  }
  
  #section02 .img_wr {
    max-width: 1700px;
  }
  
  #section02 .content_wr {
  }
  
  .comparison_section {
  }
  
  .comparison_section .tit {
    font-size: 44px;
  }
  
  .comparison_table thead th {
    padding: 17px 18px;
  }
  
  .comparison_table tbody td {
    font-size: 21px;
    padding: 19px 22px;
  }
}

@media screen and (min-width: 2560px) {
  #section01 .video_bg {
    max-width: unset;
    max-height: 1000px;
  }
  
  #section02 .text {
    max-width: 1800px;
  }
  
  #section02 .text .tit {
    font-size: 52px;
  }
  
  #section02 .text .txt {
  }
  
  #section02 .img_wr {
    max-width: 1800px;
  }
  
  #section02 .content_wr {
    max-width: 2000px;
  }
  
  #section02 .content_wr .four .tit {
  }
  
  .comparison_section {
  }
  
  .comparison_section .tit {
    font-size: 42px;
  }
  
  .comparison_table thead th {
    padding: 18px 20px;
  }
  
  .comparison_table tbody td {
    padding: 20px 25px;
  }
  
  #section04 {
    padding: 120px 0 180px;
  }
  
  .reference_section .tit {
    font-size: 42px;
    margin-bottom: 80px;
  }
  
  .reference_grid {
  }
  
  .reference_header {
    padding: 25px 0px 20px;
  }
  
  .spec_badge {
    /* padding: 8px 16px; */
  }
  
  .reference_images {
    min-height: 300px;
    gap: 25px;
  }
  
  .reference_images img {
  }
  
  .reference_item.one_view .reference_images {
  }
  
  .btn_more_references {
    padding: 18px 60px;
  }
}