@charset "UTF-8";
@font-face {
  font-family: "Pretendard-Regular";
  src: url("https://fastly.jsdelivr.net/gh/Project-Noonnu/noonfonts_2107@1.1/Pretendard-Regular.woff") format("woff");
  font-weight: 400;
  font-style: normal;
}
* {
  box-sizing: border-box;
  font-family: "pretendard", sans-serif;
  word-break: keep-all;
}

body,
html {
  scroll-behavior: smooth;
  margin: 0;
  padding: 0;
  height: 100%;
}
body.swiper-active,
html.swiper-active {
  overflow: hidden;
}
body.menu-open,
html.menu-open {
  overflow: hidden;
}

li {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

@keyframes rotate {
  to {
    transform: rotate(360deg);
  }
}
@keyframes slideInUp {
  to {
    transform: translateY(0);
    opacity: 1;
  }
}
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: rgba(0, 0, 0, 0);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 2rem;
  backdrop-filter: none;
  border-bottom: none;
  transition: all 0.3s ease;
}
.main-header.scrolled {
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.main-header .header-inner {
  width: 100%;
  max-width: 1600px;
  padding: 0 36px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.main-header .logo {
  display: block;
  width: 150px;
  height: 50px;
}
.main-header .logo img {
  height: 100%;
}
.main-header .nav-area {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.main-header .main-nav {
  display: flex;
}
.main-header .main-nav .nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 2rem;
}
.main-header .main-nav .nav-list > li {
  position: relative;
}
.main-header .main-nav .nav-list > li.has-submenu:hover .header-submenu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.main-header .main-nav .nav-list > li a {
  color: white;
  text-decoration: none;
  font-size: 1rem;
  padding: 0.8rem 1.2rem;
  display: block;
  border-radius: 25px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}
.main-header .main-nav .nav-list > li a::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}
.main-header .main-nav .nav-list > li a:hover {
  transform: translateY(-2px);
}
.main-header .main-nav .header-submenu {
  opacity: 0;
  visibility: hidden;
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  background: rgba(20, 20, 20, 0.95);
  backdrop-filter: blur(15px);
  padding: 1.5rem;
  border-radius: 16px;
  white-space: nowrap;
  z-index: 999;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.main-header .main-nav .header-submenu::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 12px;
  background: rgba(20, 20, 20, 0.95);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-left: 1px solid rgba(255, 255, 255, 0.1);
  transform: translateX(-50%) rotate(45deg);
}
.main-header .main-nav .header-submenu li {
  margin: 0.5rem 0;
}
.main-header .main-nav .header-submenu li a {
  padding: 0.7rem 1rem;
  font-size: 0.9rem;
  color: #e0e0e0;
  border-radius: 8px;
  transition: all 0.3s ease;
}
.main-header .main-nav .header-submenu li a:hover {
  background: rgba(154, 227, 255, 0.2);
  color: #9ae3ff;
  transform: translateX(5px);
}
.main-header .menu-toggle {
  background: none;
  border: 2px solid rgba(255, 255, 255, 0.3);
  font-size: 1.5rem;
  color: white;
  cursor: pointer;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}
.main-header .menu-toggle::before {
  content: "";
  position: absolute;
  inset: 0;
  background: conic-gradient(from 0deg, transparent, rgba(154, 227, 255, 0.4), transparent);
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.main-header .menu-toggle:hover {
  transform: scale(1.1);
  border-color: #9ae3ff;
  box-shadow: 0 0 20px rgba(154, 227, 255, 0.5);
}
.main-header .menu-toggle:hover::before {
  opacity: 1;
  animation: rotate 2s linear infinite;
}

.fullscreen-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: radial-gradient(circle at center, rgba(15, 15, 30, 0.98), rgba(5, 5, 15, 0.98)), radial-gradient(circle at 20% 30%, rgba(154, 227, 255, 0.1) 0%, transparent 50%), radial-gradient(circle at 80% 70%, rgba(100, 200, 255, 0.08) 0%, transparent 50%);
  backdrop-filter: blur(20px);
  color: white;
  z-index: 9999;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 2rem;
  overflow-y: auto;
  opacity: 0;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.fullscreen-menu::-webkit-scrollbar {
  display: none;
}
.fullscreen-menu.active {
  display: flex;
  opacity: 1;
}
.fullscreen-menu::before {
  content: "";
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 30%, rgba(154, 227, 255, 0.1) 0%, transparent 50%), radial-gradient(circle at 80% 70%, rgba(100, 200, 255, 0.08) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}
.fullscreen-menu .close-btn {
  position: fixed;
  top: 2rem;
  right: 2rem;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  font-size: 2rem;
  color: white;
  cursor: pointer;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(10px);
  z-index: 10;
}
.fullscreen-menu .close-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: rotate(90deg) scale(1.1);
  box-shadow: 0 0 25px rgba(255, 255, 255, 0.3);
}
.fullscreen-menu .menu-content {
  width: 100%;
  max-width: 1200px;
  z-index: 1;
  padding-top: 2rem;
  min-height: 100vh;
}
.fullscreen-menu .sitemap-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 3rem;
  background: linear-gradient(45deg, #9ae3ff, #64c8ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
}
.fullscreen-menu .menu-list {
  list-style: none;
  padding: 0;
  margin: 0;
  flex-grow: 1;
}
.fullscreen-menu .menu-list > li:nth-child(1) {
  animation-delay: 0.1s;
}
.fullscreen-menu .menu-list > li:nth-child(2) {
  animation-delay: 0.2s;
}
.fullscreen-menu .menu-list > li:nth-child(3) {
  animation-delay: 0.3s;
}
.fullscreen-menu .menu-list > li:nth-child(4) {
  animation-delay: 0.4s;
}
.fullscreen-menu .menu-list > li:nth-child(5) {
  animation-delay: 0.5s;
}
.fullscreen-menu .menu-list > li > span,
.fullscreen-menu .menu-list > li > a {
  font-size: 1.5rem;
  font-weight: 600;
  display: block;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid rgba(154, 227, 255, 0.3);
  color: #9ae3ff;
  text-decoration: none;
  cursor: pointer;
}
.fullscreen-menu .menu-list .fullscreen-submenu {
  margin-top: 1rem;
  padding-left: 2rem;
  border-left: 2px solid rgba(154, 227, 255, 0.3);
  max-height: 0;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.fullscreen-menu .menu-list .fullscreen-submenu li {
  opacity: 0;
  transform: translateX(-20px);
  transition: all 0.3s ease;
  margin-bottom: 1.2rem;
}
.fullscreen-menu .menu-list .fullscreen-submenu li:nth-child(1) {
  transition-delay: 0.1s;
}
.fullscreen-menu .menu-list .fullscreen-submenu li:nth-child(2) {
  transition-delay: 0.2s;
}
.fullscreen-menu .menu-list .fullscreen-submenu li:nth-child(3) {
  transition-delay: 0.3s;
}
.fullscreen-menu .menu-list .fullscreen-submenu li:nth-child(4) {
  transition-delay: 0.4s;
}
.fullscreen-menu .menu-list .fullscreen-submenu li a {
  display: block;
  font-size: 1rem;
  color: #ccc;
  margin: 0.8rem 0;
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  padding: 0.7rem 1.7rem;
  padding-right: 5px;
}
.fullscreen-menu .menu-list .fullscreen-submenu li a::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(154, 227, 255, 0.1);
  transition: left 0.3s ease;
}
.fullscreen-menu .menu-list .fullscreen-submenu li a:hover {
  color: white;
  transform: translateX(5px);
  width: 98%;
}
.fullscreen-menu .menu-list .fullscreen-submenu li a:hover::before {
  left: 0;
}

.swiper {
  height: 100vh;
}
.swiper .swiper-slide {
  position: relative;
  overflow: hidden;
  height: 100vh;
  padding-top: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}
.swiper .swiper-slide .slide-bg {
  position: absolute;
  top: -20%;
  left: -20%;
  right: -20%;
  bottom: -20%;
  z-index: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transform: scale(1.5);
}
.swiper .swiper-slide .slide-content {
  position: relative;
  z-index: 1;
  text-align: center;
  width: 1600px;
  margin: 0 auto;
}
.swiper .swiper-slide.slide-1::after, .swiper .swiper-slide.slide-2::after, .swiper .swiper-slide.slide-3::after {
  display: block;
  content: "";
  width: 34px;
  height: 54px;
  z-index: 5;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 30px;
  background: url("../img/mouse.svg") no-repeat center center;
  background-size: contain;
  animation: moveMouse 1s infinite ease-in-out;
}
@media (max-width: 768px) {
  .swiper .swiper-slide.slide-1::after, .swiper .swiper-slide.slide-2::after, .swiper .swiper-slide.slide-3::after {
    animation: none;
    display: none;
  }
}
@keyframes moveMouse {
  0% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(10px);
  }
  100% {
    transform: translateX(-50%) translateY(0);
  }
}
.swiper .swiper-slide.slide-1 .slide-bg {
  background-color: #14293C;
  background-size: cover;
}
.swiper .swiper-slide.slide-1 .slide-bg .slideshow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}
.swiper .swiper-slide.slide-1 .slide-bg .bg-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1);
  z-index: -1;
}
.swiper .swiper-slide.slide-1 .slide-bg .bg-slide1 {
  background-image: url("../img/img_mainbg_02.png");
  animation-delay: 0s;
}
.swiper .swiper-slide.slide-1 .slide-bg .bg-slide2 {
  background-image: url("../img/img_mainbg_2.png");
  animation-delay: 5s;
}
.swiper .swiper-slide.slide-1 .slide-bg .bg-slide3 {
  background-image: url("../img/img_mainbg_03.png");
  animation-delay: 10s;
}
.swiper .swiper-slide.slide-1 .slide-bg .bg-slide4 {
  background-image: url("../img/img_mainbg_04.png");
  animation-delay: 15s;
}
.swiper .swiper-slide.slide-1 .slide-bg {
  /* 반응형 최적화 */
}
@media (max-width: 768px) {
  .swiper .swiper-slide.slide-1 .slide-bg .bg-slide {
    background-position: center top;
  }
}
.swiper .swiper-slide.slide-1 .slide-content .title {
  font-weight: 700;
  color: #FF6B3D;
  font-size: 4rem;
  letter-spacing: 0.02em;
}
.swiper .swiper-slide.slide-1 .slide-content .flex {
  display: flex;
  justify-content: center;
}
.swiper .swiper-slide.slide-1 .slide-content .letter {
  display: inline-block;
  transition: all 0.3s ease;
  /* 초기 상태: 투명하고 흐릿하게 */
  opacity: 0;
  filter: blur(8px);
}
.swiper .swiper-slide.slide-1 .slide-content .space {
  width: 1.5rem;
}
.swiper .swiper-slide.slide-1 .slide-content {
  /* 서브타이틀: Fade Up */
  /* 기본 상태: 애니메이션 없음 */
}
.swiper .swiper-slide.slide-1 .slide-content .subtitle {
  font-size: 1.5rem;
  color: #ffffff;
  margin-top: 0.5rem;
  opacity: 0;
  transform: translateY(20px);
  animation: none;
}
.swiper .swiper-slide.slide-1 .slide-content {
  /* 애니메이션 클래스가 있을 때만 애니메이션 실행 */
}
.swiper .swiper-slide.slide-1 .slide-content .subtitle-fadeup-effect {
  animation: subtitleFadeUp 1s ease-out forwards;
  animation-delay: 1.5s;
  /* 타이틀 애니메이션 후 */
}
.swiper .swiper-slide.slide-1 .slide-content {
  /* 타이틀: Blur to Sharp Focus */
  /* 기본 상태: 애니메이션 없음 */
}
.swiper .swiper-slide.slide-1 .slide-content .title .letter {
  opacity: 0;
  filter: blur(8px);
  animation: none;
}
.swiper .swiper-slide.slide-1 .slide-content {
  /* 애니메이션 클래스가 있을 때만 애니메이션 실행 */
}
.swiper .swiper-slide.slide-1 .slide-content .title-blur-effect .letter {
  animation: blurToSharp 1s ease forwards;
}
.swiper .swiper-slide.slide-1 .slide-content .title-blur-effect .letter:nth-child(1) {
  animation-delay: 0.1s;
}
.swiper .swiper-slide.slide-1 .slide-content .title-blur-effect .letter:nth-child(2) {
  animation-delay: 0.2s;
}
.swiper .swiper-slide.slide-1 .slide-content .title-blur-effect .letter:nth-child(3) {
  animation-delay: 0.3s;
}
.swiper .swiper-slide.slide-1 .slide-content .title-blur-effect .letter:nth-child(4) {
  animation-delay: 0.4s;
}
.swiper .swiper-slide.slide-1 .slide-content .title-blur-effect .letter:nth-child(5) {
  animation-delay: 0.5s;
}
.swiper .swiper-slide.slide-1 .slide-content .title-blur-effect .letter:nth-child(6) {
  animation-delay: 0.6s;
}
.swiper .swiper-slide.slide-1 .slide-content .title-blur-effect .letter:nth-child(7) {
  animation-delay: 0.7s;
}
.swiper .swiper-slide.slide-1 .slide-content .title-blur-effect .letter:nth-child(8) {
  animation-delay: 0.8s;
}
.swiper .swiper-slide.slide-1 .slide-content .title-blur-effect .letter:nth-child(9) {
  animation-delay: 0.9s;
}
.swiper .swiper-slide.slide-1 .slide-content .title-blur-effect .letter:nth-child(10) {
  animation-delay: 1s;
}
.swiper .swiper-slide.slide-1 .slide-content .title-blur-effect .letter:nth-child(11) {
  animation-delay: 1.1s;
}
.swiper .swiper-slide.slide-1 .slide-content .title-blur-effect .letter:nth-child(12) {
  animation-delay: 1.2s;
}
@keyframes blurToSharp {
  to {
    opacity: 1;
    filter: blur(0px);
  }
}
@keyframes subtitleFadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.swiper .swiper-slide.slide-1 .slide-content {
  /* === 애니메이션 트리거 클래스 === */
}
.swiper .swiper-slide.slide-1 .slide-content .animate-title .title {
  /* 애니메이션 활성화 시 적용될 클래스 */
}
.swiper .swiper-slide.slide-1 .slide-content .animate-title .subtitle {
  /* 애니메이션 활성화 시 적용될 클래스 */
}
.swiper .swiper-slide.slide-1 .slide-content {
  /* === 반응형 === */
}
.swiper .swiper-slide.slide-2 .slide-bg {
  background: linear-gradient(359.34deg, #2D3135 0.57%, #224565 50%, #14293C 75.19%);
}
.swiper .swiper-slide.slide-2 .slide-content {
  position: relative;
  width: 100%;
  max-width: 1600px;
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0 60px;
  z-index: 2;
}
.swiper .swiper-slide.slide-2 {
  /* Text Section */
}
.swiper .swiper-slide.slide-2 .text-section {
  flex: 1;
  max-width: 600px;
  color: #fff;
  text-align: left;
}
.swiper .swiper-slide.slide-2 .about-label {
  font-size: 1rem;
  color: #ff6b3d;
  font-weight: 500;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.swiper .swiper-slide.slide-2 .main-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 2rem;
  color: #fff;
}
.swiper .swiper-slide.slide-2 .description {
  font-size: 1.125rem;
  line-height: 1.6;
  margin-bottom: 2.5rem;
  color: #fff;
  opacity: 0.9;
}
.swiper .swiper-slide.slide-2 .view-more-btn0 {
  border-radius: 50px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  font-size: 0.875rem;
  color: #48CFEC;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
}
.swiper .swiper-slide.slide-2 .view-more-btn0:hover {
  transform: translateX(5px);
}
.swiper .swiper-slide.slide-2 .view-more-btn0 .arrow {
  transition: transform 0.3s ease;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 1px solid #48CFEC;
}
.swiper .swiper-slide.slide-2 .view-more-btn0:hover .arrow {
  transform: translateX(5px);
}
.swiper .swiper-slide.slide-2 {
  /* Image Section */
}
.swiper .swiper-slide.slide-2 .image-section {
  flex: 1.2;
  position: relative;
  max-width: 876px;
  height: 1002px;
  aspect-ratio: 876/1002;
  background: url("../img/main/sect2/sect2_city.png") no-repeat center center;
  background-size: contain;
  margin-left: auto;
}
.swiper .swiper-slide.slide-2 .drone {
  position: absolute;
  left: 31.3%;
  top: 0.7%;
  width: 70%;
  aspect-ratio: 670/536;
  background: url("../img/main/sect2/sect2_drone01.png") no-repeat center center;
  background-size: contain;
}
.swiper .swiper-slide.slide-2 {
  /* Mobile Styles: 768px -> 1400 */
}
@media (max-width: 1400px) {
  .swiper .swiper-slide.slide-2 .slide-content {
    position: relative;
    padding: 0;
    display: block;
  }
  .swiper .swiper-slide.slide-2 .text-section {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 3;
    max-width: 100%;
    padding: 48px;
    margin-bottom: 0;
  }
  .swiper .swiper-slide.slide-2 .about-label {
    font-size: 14px;
    margin-bottom: 16px;
  }
  .swiper .swiper-slide.slide-2 .main-title {
    font-size: 36px;
    margin-bottom: 24px;
  }
  .swiper .swiper-slide.slide-2 .description {
    font-size: 16px;
    margin-bottom: 32px;
  }
  .swiper .swiper-slide.slide-2 .image-section {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    max-width: 876px;
    background-size: cover;
    background-position: center;
  }
  .swiper .swiper-slide.slide-2 .drone {
    /* 모바일에서도 동일한 비율 유지 */
  }
}
@media (max-width: 480px) {
  .swiper .swiper-slide.slide-2 .main-title {
    font-size: 28px;
  }
  .swiper .swiper-slide.slide-2 .description {
    font-size: 14px;
  }
  .swiper .swiper-slide.slide-2 .view-more-btn {
    padding: 12px 24px;
    font-size: 14px;
  }
}
.swiper .swiper-slide.slide-3 {
  position: relative;
  overflow: hidden;
  /* 슬라이드 3 비디오 배경 스타일 */
}
.swiper .swiper-slide.slide-3 .slide-video-bg {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  z-index: 1;
  -o-object-fit: cover;
     object-fit: cover;
}
.swiper .swiper-slide.slide-3 .slide-video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  /* background-color: rgba(23, 30, 56, 0.85); */
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1;
}
.swiper .swiper-slide.slide-3 .spatial-cards-content {
  position: relative;
  z-index: 3;
  width: 100%;
  height: 100vh;
  /* 전체 화면 높이 사용 */
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  /* 기본은 hidden */
  text-align: left;
  padding: 0 2rem;
  /* 좌우 여백 추가 */
  box-sizing: border-box;
}
.swiper .swiper-slide.slide-3 {
  /* 배경 입자 애니메이션 */
}
.swiper .swiper-slide.slide-3 .particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}
.swiper .swiper-slide.slide-3 .particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(64, 224, 208, 0.6);
  border-radius: 50%;
  animation: spatial-float 6s infinite ease-in-out;
}
.swiper .swiper-slide.slide-3 .spatial-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  max-width: 1200px;
  width: 100%;
  padding: 2rem 0;
  z-index: 4;
  position: relative;
  margin: 0 auto;
}
.swiper .swiper-slide.slide-3 .spatial-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(64, 224, 208, 0.2);
  border-radius: 20px;
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
  position: relative;
  overflow: hidden;
  min-height: 350px;
  max-height: 400px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 100%;
  box-sizing: border-box;
  perspective: 1000px;
}
.swiper .swiper-slide.slide-3 .spatial-card:hover {
  background: #FFF;
  transform: translateY(-10px) scale(1.02);
  border-color: rgba(64, 224, 208, 0.5);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 30px rgba(64, 224, 208, 0.2);
}
.swiper .swiper-slide.slide-3 {
  /* 카드 내부 컨테이너 */
}
.swiper .swiper-slide.slide-3 .card-inner {
  position: relative;
  width: 100%;
  height: 100%;
}
.swiper .swiper-slide.slide-3 .card-front,
.swiper .swiper-slide.slide-3 .card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0;
}
.swiper .swiper-slide.slide-3 {
  /* 페이드 전환 효과 */
}
.swiper .swiper-slide.slide-3 .card-front {
  opacity: 1;
  transition: opacity 0.5s ease;
}
.swiper .swiper-slide.slide-3 .card-back {
  opacity: 0;
  transition: opacity 0.5s ease;
}
.swiper .swiper-slide.slide-3 .spatial-card:hover .card-front {
  opacity: 0;
}
.swiper .swiper-slide.slide-3 .spatial-card:hover .card-back {
  opacity: 1;
}
.swiper .swiper-slide.slide-3 {
  /* 앞면 스타일 */
}
.swiper .swiper-slide.slide-3 .card-icon {
  width: 60px;
  aspect-ratio: 1/1;
  margin-bottom: 1.5rem;
  background: #00C2B3 no-repeat center center;
  background-size: 48px auto;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  transition: transform 0.3s ease;
}
.swiper .swiper-slide.slide-3 .card-icon.cord1 {
  background-image: url("../img/main/sect1_1.png");
}
.swiper .swiper-slide.slide-3 .card-icon.cord2 {
  background-image: url("../img/main/sect1_2.png");
}
.swiper .swiper-slide.slide-3 .card-icon.cord3 {
  background-image: url("../img/main/sect1_3.png");
}
.swiper .swiper-slide.slide-3 .card-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  line-height: 1.3;
}
.swiper .swiper-slide.slide-3 .card-subtitle {
  font-size: 0.9rem;
  color: #40e0d0;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  opacity: 0.8;
}
.swiper .swiper-slide.slide-3 .card-description {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
  flex-grow: 1;
  min-height: 52px;
}
.swiper .swiper-slide.slide-3 .card-number {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 3rem;
  font-weight: 900;
  color: rgba(64, 224, 208, 0.1);
  transition: all 0.3s ease;
}
.swiper .swiper-slide.slide-3 .card-accent {
  position: absolute;
  top: 0;
  right: 0;
  width: 80px;
  height: 80px;
  background: radial-gradient(circle, rgba(64, 224, 208, 0.2) 0%, transparent 70%);
  border-radius: 50%;
  transform: translate(30px, -30px);
  transition: all 0.4s ease;
}
.swiper .swiper-slide.slide-3 {
  /* 뒷면 스타일 */
}
.swiper .swiper-slide.slide-3 .card-back {
  position: relative;
  overflow: hidden;
}
.swiper .swiper-slide.slide-3 .card-back-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 0;
}
.swiper .swiper-slide.slide-3 .card-back-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #00C2B3;
  margin-bottom: 1rem;
  text-align: left;
}
.swiper .swiper-slide.slide-3 .card-back-text {
  font-size: 0.95rem;
  color: #555;
  line-height: 1.6;
  text-align: left;
  white-space: pre-line;
}
.swiper .swiper-slide.slide-3 {
  /* 카드 레벨 뒷면 이미지 */
}
.swiper .swiper-slide.slide-3 .card-back-image {
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  width: 115px;
  height: 115px;
  background: url("../img/main/sect3/cardback_01.png") center/cover;
  border-radius: 16px;
  opacity: 0;
  z-index: 5;
  transition: opacity 0.5s ease;
}
.swiper .swiper-slide.slide-3 .spatial-card:hover .card-back-image {
  opacity: 0.95;
}
.swiper .swiper-slide.slide-3 {
  /* 카드별 뒷면 이미지 */
}
.swiper .swiper-slide.slide-3 .spatial-card:nth-child(1) .card-back-image {
  background-image: url("../img/main/sect3/cardback_01.png");
}
.swiper .swiper-slide.slide-3 .spatial-card:nth-child(2) .card-back-image {
  background-image: url("../img/main/sect3/cardback_02.png");
}
.swiper .swiper-slide.slide-3 .spatial-card:nth-child(3) .card-back-image {
  background-image: url("../img/main/sect3/cardback_03.png");
}
.swiper .swiper-slide.slide-3 {
  /* 호버 효과 */
}
.swiper .swiper-slide.slide-3 .spatial-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(64, 224, 208, 0.1) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: -1;
}
.swiper .swiper-slide.slide-3 .spatial-card:hover::before {
  opacity: 0;
  /* 호버 시에는 그라데이션 배경 숨김 */
}
.swiper .swiper-slide.slide-3 {
  /* ===============================================
     반응형 개선 - 공간정보 카드
     =============================================== */
  /* 태블릿 크기에서의 반응형 (769px ~ 1024px) */
}
@media (max-width: 1024px) and (min-width: 769px) {
  .swiper .swiper-slide.slide-3 .spatial-cards-content {
    padding: 0 1.5rem;
  }
  .swiper .swiper-slide.slide-3 .spatial-container {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 1.5rem 0;
  }
  .swiper .swiper-slide.slide-3 .spatial-card {
    padding: 1.8rem;
    min-height: 300px;
    max-height: 350px;
  }
}
.swiper .swiper-slide.slide-3 {
  /* 모바일 세로 (768px 이하) - 기존 스타일 개선 */
}
@media (max-width: 768px) {
  .swiper .swiper-slide.slide-3 .spatial-cards-content {
    height: calc(100vh - 80px);
    /* 헤더 높이(80px) 제외 */
    overflow: hidden;
    /* 스크롤 제거 */
    padding: 24px;
    /* 좌우 24px 패딩 */
    align-items: stretch;
    /* 세로로 꽉 채우기 */
    justify-content: center;
    text-align: center;
  }
  .swiper .swiper-slide.slide-3 .spatial-container {
    display: flex;
    /* 그리드 대신 flex 사용 */
    flex-direction: column;
    /* 세로 배치 */
    width: 100%;
    height: 100%;
    /* 전체 높이 사용 */
    gap: 0;
    /* 간격 제거 */
    padding: 0;
    margin: 0;
  }
  .swiper .swiper-slide.slide-3 .spatial-card {
    flex: 1;
    /* 동일한 높이로 3등분 */
    display: flex;
    flex-direction: column;
    justify-content: center;
    /* 내용 세로 중앙 정렬 */
    padding: 20px;
    /* 적절한 내부 패딩 */
    margin: 8px 0;
    /* 카드 간 최소 간격 */
    width: 100%;
    min-height: 0;
    /* flex로 높이 자동 조정 */
    max-height: none;
    border-radius: 16px;
    /* 모바일에 맞게 둥글게 */
    /* 호버 효과 대폭 줄이기 */
  }
  .swiper .swiper-slide.slide-3 .spatial-card:hover {
    transform: none;
    /* 변형 효과 제거 */
    border-color: rgba(64, 224, 208, 0.3);
    /* 미세한 테두리 변화만 */
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    /* 약한 그림자만 */
  }
  .swiper .swiper-slide.slide-3 .spatial-card:active {
    transform: scale(0.99);
    /* 터치 시 미세한 축소만 */
    transition: transform 0.1s ease;
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-title {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    text-align: center;
    /* 제목 중앙 정렬 */
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-subtitle {
    font-size: 0.8rem;
    margin-bottom: 0.3rem;
    text-align: center;
    /* 서브타이틀 중앙 정렬 */
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-description {
    font-size: 0.9rem;
    line-height: 1.4;
    text-align: center;
    /* 설명 중앙 정렬 */
    flex-grow: 1;
    display: flex;
    align-items: center;
    /* 텍스트 세로 중앙 정렬 */
    justify-content: center;
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-icon {
    margin: 0 auto 0.8rem;
    /* 아이콘 중앙 정렬 */
    /* 호버 시 아이콘 효과도 줄이기 */
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-icon:hover {
    transform: scale(1.05) rotate(2deg);
    /* 효과 줄임 */
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-number {
    font-size: 2rem;
    /* 번호 크기 줄임 */
    top: 12px;
    right: 16px;
    opacity: 0.6;
    /* 투명도 조정 */
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-accent {
    display: none;
    /* 모바일에서는 액센트 제거 */
  }
  .swiper .swiper-slide.slide-3 .spatial-card {
    /* 그라데이션 배경 효과도 줄이기 */
  }
  .swiper .swiper-slide.slide-3 .spatial-card::before {
    background: linear-gradient(135deg, rgba(64, 224, 208, 0.05) 0%, transparent 50%);
    opacity: 1;
    /* 항상 보이게 하되 매우 연하게 */
  }
}
.swiper .swiper-slide.slide-3 {
  /* 작은 모바일 (480px 이하) */
}
@media (max-width: 480px) {
  .swiper .swiper-slide.slide-3 .spatial-cards-content {
    padding: 0.8rem;
    padding-top: 1.5rem;
  }
  .swiper .swiper-slide.slide-3 .spatial-container {
    gap: 1rem;
  }
  .swiper .swiper-slide.slide-3 .spatial-card {
    padding: 1.2rem;
    min-height: 180px;
    border-radius: 15px;
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-title {
    font-size: 1rem;
    margin-bottom: 0.6rem;
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-description {
    font-size: 0.85rem;
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-icon {
    width: 45px;
    height: 45px;
    margin-bottom: 0.8rem;
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-number {
    font-size: 2rem;
    top: 0.6rem;
    right: 0.6rem;
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-subtitle {
    font-size: 0.8rem;
    margin-bottom: 0.4rem;
  }
}
.swiper .swiper-slide.slide-3 {
  /* 매우 작은 화면 (360px 이하) */
}
@media (max-width: 360px) {
  .swiper .swiper-slide.slide-3 .spatial-cards-content {
    padding: 0.6rem;
    padding-top: 1rem;
  }
  .swiper .swiper-slide.slide-3 .spatial-card {
    padding: 1rem;
    min-height: 160px;
    border-radius: 12px;
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-title {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-description {
    font-size: 0.8rem;
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-icon {
    width: 40px;
    height: 40px;
    margin-bottom: 0.6rem;
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-number {
    font-size: 1.8rem;
    top: 0.5rem;
    right: 0.5rem;
  }
}
.swiper .swiper-slide.slide-3 {
  /* 큰 화면에서의 최적화 (1200px 이상) */
}
@media (min-width: 1200px) {
  .swiper .swiper-slide.slide-3 .spatial-cards-content {
    padding: 0 3rem;
  }
  .swiper .swiper-slide.slide-3 .spatial-container {
    max-width: 1400px;
    grid-template-columns: repeat(3, 1fr);
    /* 정확히 3개 열 */
    gap: 2rem;
  }
  .swiper .swiper-slide.slide-3 .spatial-card {
    padding: 2.5rem;
    min-height: 350px;
    max-height: 400px;
  }
}
.swiper .swiper-slide.slide-3 {
  /* 모바일에서 스크롤바 스타일링 */
}
@media (max-width: 768px) {
  .swiper .swiper-slide.slide-3 .spatial-cards-content::-webkit-scrollbar {
    width: 3px;
  }
  .swiper .swiper-slide.slide-3 .spatial-cards-content::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
  }
  .swiper .swiper-slide.slide-3 .spatial-cards-content::-webkit-scrollbar-thumb {
    background: rgba(64, 224, 208, 0.5);
    border-radius: 2px;
  }
  .swiper .swiper-slide.slide-3 .spatial-cards-content::-webkit-scrollbar-thumb:hover {
    background: rgba(64, 224, 208, 0.7);
  }
}
.swiper .swiper-slide.slide-3 {
  /* 터치 디바이스에서의 인터랙션 개선 */
}
@media (hover: none) and (pointer: coarse) {
  .swiper .swiper-slide.slide-3 .spatial-card:hover {
    transform: none;
    /* 호버 효과 제거 */
    border-color: rgba(64, 224, 208, 0.2);
    box-shadow: none;
  }
  .swiper .swiper-slide.slide-3 .spatial-card:active {
    transform: scale(0.98);
    /* 터치 시 약간 축소 */
    transition: transform 0.1s ease;
  }
}
.swiper .swiper-slide.slide-3 {
  /* 가로 모드 모바일 대응 */
}
@media (max-width: 768px) and (orientation: landscape) {
  .swiper .swiper-slide.slide-3 .spatial-cards-content {
    padding-top: 1rem;
  }
  .swiper .swiper-slide.slide-3 .spatial-card {
    min-height: 160px;
    padding: 1.2rem;
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-title {
    font-size: 1rem;
  }
  .swiper .swiper-slide.slide-3 .spatial-card .card-description {
    font-size: 0.85rem;
  }
}
.swiper .swiper-slide.slide-4 .scrollable-inner {
  height: 100%;
  padding-top: 80px;
  overflow-y: auto;
  color: white;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.swiper .swiper-slide.slide-4 .scrollable-inner::-webkit-scrollbar {
  display: none;
}
.swiper .swiper-slide.slide-4 .content {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
}

footer {
  padding: 4.375rem 0;
  background: #111;
  color: #ccc;
  text-align: left;
}
footer .footer-content {
  position: relative;
  display: flex;
  gap: 3rem;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 2rem;
  font-size: 0.9rem;
  line-height: 1;
}
footer .footer-content .footer-logo {
  width: 150px;
  height: 66px;
  background: url("../img/logo_footer.png") no-repeat center center;
  background-size: contain;
}
footer .footer-content p {
  margin: 8px 0;
}
footer .footer-content .copyright {
  color: #767676;
}
footer .footer-content .footer-arrow {
  cursor: pointer;
  position: absolute;
  right: 24px;
  display: block;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgb(255, 255, 255) url("../img/icon_arrow-up.svg") no-repeat center center;
  background-size: 36px;
  overflow: hidden;
  line-height: 9999;
  border: none;
  transition: all 0.3s ease;
}
footer .footer-content .footer-arrow:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(154, 227, 255, 0.2);
}
footer .footer-content a {
  color: #9ae3ff;
  text-decoration: none;
  transition: color 0.3s ease;
}
footer .footer-content a:hover {
  color: #64c8ff;
}
@media (max-width: 768px) {
  footer .footer-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  footer .footer-content p {
    margin: 0.5rem 0;
  }
  footer .footer-content .footer-arrow {
    top: -44px;
    right: 24px;
    width: 48px;
    height: 48px;
  }
}

header .login-area {
  position: absolute;
  right: 4px;
  top: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}
header .login-area .login-btn {
  opacity: 0.25;
  width: 26px;
  height: 26px;
  border: 1px solid #fff;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.25) url("../img/icon_login.svg") no-repeat center center;
  font-size: 0px;
  font-weight: 400;
  color: #fff;
  cursor: pointer;
  transition: all 0.3s ease;
}
header .login-area .login-btn:hover {
  opacity: 0.75;
  border-color: #fff;
  color: #fff;
}
header .login-area .login-btn:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.5);
  outline-offset: 2px;
}

.login-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.login-popup {
  width: 432px;
  min-height: 360px;
  padding: 36px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  border: 1px solid #fff;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.25);
  box-sizing: border-box;
}
.login-popup * {
  box-sizing: border-box;
}
.login-popup .btn_close {
  opacity: 1;
  position: absolute;
  top: 8px;
  right: 8px;
  width: 32px;
  height: 32px;
  background: url("../img/icon_cancel.svg") no-repeat center center;
  background-size: 30px;
  font-size: 0px;
  cursor: pointer;
  transition: opacity 0.3s ease;
}
.login-popup .btn_close:hover {
  opacity: 0.75;
}
.login-popup__title {
  margin: 0;
  font-family: "Pretendard", sans-serif;
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  color: #333;
}
.login-popup__field {
  width: 360px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}
.login-popup__label {
  font-family: "Pretendard", sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1;
  color: #333;
}
.login-popup__input {
  width: 100%;
  height: 56px;
  padding: 0 16px;
  border: 0;
  border-radius: 8px;
  background: #f4f4f6;
  font-family: "Pretendard", sans-serif;
  font-size: 16px;
  font-weight: 400;
  color: #333;
  outline: none;
}
.login-popup__input::-moz-placeholder {
  color: #999;
  opacity: 1;
}
.login-popup__input::placeholder {
  color: #999;
  opacity: 1;
}
.login-popup__input:focus {
  box-shadow: 0 0 0 2px rgba(60, 123, 192, 0.35);
}
.login-popup__button-wrap {
  width: 100%;
  padding-top: 8px;
  display: flex;
  justify-content: center;
}
.login-popup__button {
  width: 163px;
  height: 56px;
  border: 0;
  border-radius: 50px;
  background: #3c7bc0;
  font-family: "Pretendard", sans-serif;
  font-size: 18px;
  font-weight: 400;
  color: #fff;
  cursor: pointer;
}
.login-popup__button:hover {
  background: #346fad;
}
.login-popup__button:focus-visible {
  outline: 2px solid rgba(60, 123, 192, 0.5);
  outline-offset: 3px;
}

@keyframes spatial-glitch {
  0% {
    transform: translate(0);
  }
  20% {
    transform: translate(-2px, 2px);
  }
  40% {
    transform: translate(-2px, -2px);
  }
  60% {
    transform: translate(2px, 2px);
  }
  80% {
    transform: translate(2px, -2px);
  }
  100% {
    transform: translate(0);
  }
}
@keyframes spatial-float {
  0%, 100% {
    transform: translateY(0px) translateX(0px);
    opacity: 0;
  }
  50% {
    transform: translateY(-20px) translateX(10px);
    opacity: 1;
  }
}
/* ========================
   태블릿 크기 (769px ~ 1024px)
   ======================== */
@media (max-width: 1024px) {
  .swiper .swiper-slide.slide-2 .slide-content {
    padding: 1.5rem;
    gap: 1.5rem;
  }
  .swiper .swiper-slide.slide-2 .left .subtitle {
    font-size: 3rem;
    padding-bottom: 1.5rem;
  }
  .swiper .swiper-slide.slide-2 .left .subtitle span {
    font-size: 2.2rem;
  }
  .swiper .swiper-slide.slide-2 .left .description {
    font-size: 1rem;
    padding-bottom: 3rem;
  }
  .swiper .swiper-slide.slide-2 .right {
    max-width: 400px;
  }
}
/* ========================
   작은 모바일 (480px 이하)
   ======================== */
@media (max-width: 480px) {
  .swiper .swiper-slide.slide-2 .slide-content {
    padding: 0.8rem;
    gap: 1.5rem;
  }
  .swiper .swiper-slide.slide-2 .left .title {
    font-size: 1rem;
    padding-bottom: 1rem;
  }
  .swiper .swiper-slide.slide-2 .left .subtitle {
    font-size: 2rem;
    padding-bottom: 1rem;
  }
  .swiper .swiper-slide.slide-2 .left .subtitle span {
    font-size: 1.5rem;
  }
  .swiper .swiper-slide.slide-2 .left .description {
    font-size: 0.9rem;
    padding-bottom: 1.5rem;
  }
  .swiper .swiper-slide.slide-2 .left .view-more-btn {
    font-size: 0.8rem;
    padding: 0.6rem 1.2rem;
  }
  .swiper .swiper-slide.slide-2 .right {
    max-width: 280px;
    background-size: 85%;
  }
}
/* ========================
   가로 모드 모바일 대응
   ======================== */
@media (max-width: 768px) and (orientation: landscape) {
  .swiper .swiper-slide.slide-2 {
    height: auto;
    min-height: 100vh;
    padding-top: 60px;
    padding-bottom: 2rem;
  }
  .swiper .swiper-slide.slide-2 .slide-content {
    flex-direction: row;
    align-items: center;
    gap: 1.5rem;
  }
  .swiper .swiper-slide.slide-2 .right {
    order: 1;
    flex: 0.6;
    max-width: 300px;
  }
  .swiper .swiper-slide.slide-2 .left {
    order: -1;
    flex: 1;
    text-align: left;
  }
  .swiper .swiper-slide.slide-2 .left .subtitle {
    font-size: 2rem;
    padding-bottom: 1rem;
  }
  .swiper .swiper-slide.slide-2 .left .description {
    padding-bottom: 1.5rem;
  }
}
/* ========================
   데스크탑 큰 화면 최적화
   ======================== */
@media (min-width: 1600px) {
  .swiper .swiper-slide.slide-2 .slide-content {
    max-width: 1800px;
    padding: 3rem;
    gap: 3rem;
  }
  .swiper .swiper-slide.slide-2 .left .subtitle {
    font-size: 4.5rem;
  }
  .swiper .swiper-slide.slide-2 .left .subtitle span {
    font-size: 3.2rem;
  }
  .swiper .swiper-slide.slide-2 .right {
    max-width: 600px;
  }
}
@media (max-width: 1440px) {
  .main-header {
    height: 60px;
  }
  .main-header .header-inner {
    padding: 0 24px;
  }
  .main-header a.logo {
    height: 40px;
  }
  .main-header .main-nav {
    display: none;
  }
  .main-header .menu-toggle {
    width: 40px;
    height: 40px;
  }
  .swiper .swiper-slide {
    padding-top: 60px;
  }
  .swiper .swiper-slide.slide-4 .scrollable-inner {
    padding-top: 60px;
  }
}
@media (max-width: 768px) {
  .fullscreen-menu .sitemap-title {
    font-size: 2rem;
    margin-bottom: 2rem;
  }
  .fullscreen-menu .menu-content {
    padding-top: 1rem;
    min-height: auto;
    justify-content: flex-start;
  }
  .fullscreen-menu .menu-list > li {
    margin-bottom: 1.5rem;
    transform: translateY(30px);
    opacity: 0;
    animation: slideInUp 0.6s ease forwards;
  }
  .fullscreen-menu .menu-list > li.mobile-expanded .fullscreen-submenu {
    max-height: 300px;
  }
  .fullscreen-menu .menu-list > li.mobile-expanded .fullscreen-submenu li {
    opacity: 1;
    transform: translateX(0);
  }
  .fullscreen-menu .menu-list > li > span,
  .fullscreen-menu .menu-list > li > a {
    font-size: 1.5rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-block;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    padding: 0.5rem 0;
  }
  .fullscreen-menu .menu-list > li > span::after,
  .fullscreen-menu .menu-list > li > a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #9ae3ff, #64c8ff);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .fullscreen-menu .menu-list > li > span:hover,
  .fullscreen-menu .menu-list > li > a:hover {
    color: #9ae3ff;
    transform: translateX(10px);
  }
  .fullscreen-menu .menu-list > li > span:hover::after,
  .fullscreen-menu .menu-list > li > a:hover::after {
    width: 100%;
  }
  /* ========================
     Slide-2 반응형 디자인 
     ======================== */
  .swiper .swiper-slide.slide-2 {
    padding-top: 60px;
    height: auto;
    min-height: 100vh;
  }
  .swiper .swiper-slide.slide-2 .slide-content {
    flex-direction: column;
    padding: 1rem;
    gap: 2rem;
    align-items: center;
    text-align: center;
  }
  .swiper .swiper-slide.slide-2 {
    /* 배경그림이 위로 올라옴 */
  }
  .swiper .swiper-slide.slide-2 .right {
    order: -1;
    flex: none;
    width: 100%;
    max-width: 350px;
    height: auto;
    margin: 0 auto;
    background-size: 80%;
  }
  .swiper .swiper-slide.slide-2 .right .drone {
    left: 15%;
    top: 0%;
    width: 90%;
    height: 50%;
  }
  .swiper .swiper-slide.slide-2 {
    /* 텍스트가 아래로 내려감 */
  }
  .swiper .swiper-slide.slide-2 .left {
    order: 1;
    flex: none;
    width: 100%;
    text-align: center;
    max-width: none;
  }
  .swiper .swiper-slide.slide-2 .left .title {
    font-size: 1.2rem;
    padding-bottom: 1.5rem;
  }
  .swiper .swiper-slide.slide-2 .left .subtitle {
    font-size: 2.5rem;
    padding-bottom: 1.5rem;
    line-height: 1.2;
  }
  .swiper .swiper-slide.slide-2 .left .subtitle span {
    font-size: 1.8rem;
  }
  .swiper .swiper-slide.slide-2 .left .description {
    font-size: 1rem;
    padding-bottom: 2rem;
    line-height: 1.6;
  }
}
@media (min-width: 769px) {
  .fullscreen-menu .menu-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
  }
  .fullscreen-menu .menu-list > li {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    transform: translateY(30px);
    opacity: 0;
    animation: slideInUp 0.6s ease forwards;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .fullscreen-menu .menu-list > li:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(154, 227, 255, 0.2);
    border-color: rgba(154, 227, 255, 0.3);
  }
  .fullscreen-menu .menu-list .fullscreen-submenu {
    display: block !important;
    max-height: none !important;
    opacity: 1 !important;
    transform: none !important;
    visibility: visible !important;
    position: static !important;
    background: none !important;
    backdrop-filter: none !important;
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    margin-top: 0;
    padding-left: 0;
    border-left: none;
  }
  .fullscreen-menu .menu-list .fullscreen-submenu::before {
    display: none !important;
  }
  .fullscreen-menu .menu-list .fullscreen-submenu li {
    opacity: 1 !important;
    transform: none !important;
    margin-bottom: 0.8rem;
  }
  .fullscreen-menu .menu-list .fullscreen-submenu li a {
    font-size: 1rem;
    color: #e0e0e0;
    padding: 0.7rem 1rem;
    border-radius: 8px;
    background: none;
    border: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    margin: 0;
  }
  .fullscreen-menu .menu-list .fullscreen-submenu li a::before {
    display: none;
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(154, 227, 255, 0.1);
    transition: left 0.3s ease;
  }
  .fullscreen-menu .menu-list .fullscreen-submenu li a:hover {
    color: white;
    transform: translateX(5px);
    border-color: rgba(154, 227, 255, 0.3);
  }
  .fullscreen-menu .menu-list .fullscreen-submenu li a:hover::before {
    left: 0;
  }
}
/* ===== Swiper Pagination Styles ===== */
.swiper-pagination {
  position: fixed !important;
  right: 30px !important;
  top: 50% !important;
  transform: translateY(-50%) !important;
  bottom: auto !important;
  left: auto !important;
  width: auto !important;
  height: auto !important;
  display: flex !important;
  flex-direction: column !important;
  gap: 12px !important;
  z-index: 999 !important;
}

.swiper-pagination-bullet {
  width: 12px !important;
  height: 12px !important;
  background: rgba(255, 255, 255, 0.3) !important;
  border: 2px solid rgba(255, 255, 255, 0.6) !important;
  border-radius: 50% !important;
  opacity: 1 !important;
  margin: 0 !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  cursor: pointer !important;
  position: relative !important;
}

.swiper-pagination-bullet:hover {
  background: rgba(255, 255, 255, 0.6) !important;
  border-color: rgba(255, 255, 255, 0.8) !important;
  transform: scale(1.2) !important;
}

.swiper-pagination-bullet-active {
  background: rgba(255, 255, 255, 0.9) !important;
  border-color: #ffffff !important;
  transform: scale(1.3) !important;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.4) !important;
}

.swiper-pagination-bullet-active::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 4px;
  height: 4px;
  background: #ffffff;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 0.7;
    transform: translate(-50%, -50%) scale(1.2);
  }
  100% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}
/* 모바일 대응 */
@media (max-width: 768px) {
  .swiper-pagination {
    right: 20px !important;
    gap: 10px !important;
  }
  .swiper-pagination-bullet {
    width: 10px !important;
    height: 10px !important;
  }
}
/* 푸터가 보일 때 페이지네이션 숨김 */
.swiper.footer-visible .swiper-pagination {
  opacity: 0 !important;
  pointer-events: none !important;
}/*# sourceMappingURL=style.css.map */