/* Base Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

a {
  all: unset; /* 완전히 초기화 (권장) */
  cursor: pointer;
}

html, body {
  width: 100%;
  min-height: 100vh;
  background-color: #000;
  overflow-x: hidden;
  font-family: 'YESMyoungjo-Regular', serif;
}

/* Layout */
.background-wrapper {
  position: relative;
  width: 100%;
}

.background-container img {
  width: 100vw;
  height: 200vh;
  display: block;
  object-fit: cover;
  position: relative;
  z-index: 1;
}

/* Particle */
.particle-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 28%;
  z-index: 2;
  pointer-events: none;
}

#particles-js {
  width: 100%;
  height: 100%;
}

/* 시작 */
#gnb {
  position: fixed;
  top: 30px;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #fff;
  z-index: 31;
}

.gnb-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8vw;
  font-size: 16px;
  font-family: 'Pretendard', sans-serif;
  font-weight: 300;
  color: #A7A7A7;
  z-index: 32;
  cursor: pointer;
}

.gnb-center span:hover{
  font-weight: 300;
  color: #fff;
}

#gnbTitle {
  position: absolute;
  right: 3vw;
  font-size: 14px;
  font-family: 'YESMyoungjo-Regular', serif;
  opacity: 0.6;
  white-space: nowrap;
  font-size: 12px;
  z-index: 32;
  cursor: pointer;
}

.title-wrapper {
  position: absolute;
  top: 4%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 30;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px; /* 각 콘텐츠 간 간격 */
  width: 90%;
  max-width: 900px;
}

.main-title {
  z-index: 30;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin-bottom: 60px;
}

.title-cn {
  filter: brightness(0) invert(1);
  width: 8vw;
  min-width: 120px;
  height: auto;
  display: block;
  margin-bottom: 20px;
}

.title-ko {
  filter: brightness(0) invert(1);
  width: 18vw;
  min-width: 200px;
  height: auto;
  display: block;
}



.content-title {
  color: #fff;
  font-family: 'Pretendard', sans-serif;
  z-index: 32;
  display: block; /* 핵심! 내부 콘텐츠 크기만큼 width 설정됨 */
  width: 100%;
  margin: 0 auto;
}

.content-title div {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  max-width: 800px;
  margin: 0 auto;
  /* padding: 20px 40px; */
}

.content-title span {
  font-size: 32px;
  /* white-space: nowrap; */
}

.content-title button {
  border: 1px solid #fff;
  border-radius: 3px;
  background-color: transparent;
  color: #fff;
  padding: 8px 14px;
  font-size: 16px;
  cursor: pointer;
  /* white-space: nowrap; */
}

.content-title button:hover {
  background-color: rgba(255, 255, 255, 0.4);
}

.content-body {
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: baseline;
  z-index: 32;
  border-radius: 10px;
  background-color: #fff;
  font-family: 'Pretendard', sans-serif;
  max-width: 800px;
  padding: 40px 20px;
  font-size: 16px;
  /* white-space: nowrap; */
}

.responsive-btn-wrapper {
  display: none;
  position: fixed;
  bottom: 0;
  background-color: #041550;
  width: 100%;
  height: 100px;
  z-index: 30;
  margin: 0 auto;
}

.responsive-btn {
  color: #fff;
  font-family: 'Pretendard', sans-serif;
  z-index: 32;
  font-size: 2em;
  border: 1px solid #fff;
  background-color: transparent;
  width: 99%;
  height: 90%;
  padding: 20px 20px;
  border-radius: 10px;
}

.responsive-btn:hover {
  background-color: rgba(98, 31, 255, 0.4);;
}

.content-body p{
  line-height: 2;
}

.bold{
  font-weight: 700;
}

.small-text {
  font-size: 14px;
  margin-bottom: 8px;
}

.indent {
  text-indent: 1.2em;
}

.indent-pd {
  padding-left: 1.2em;
  padding-right: 2em;
}

.wrap {
  white-space: wrap;
}
/* 끝 */

.gnb-background{
  display: none;
  position: fixed;
  background-color: #fff;
  opacity: 0.5;
  z-index: 2;
  width: 100vw;
  padding: 20px 0px;
  color: transparent;
}
/* 공통 클래스 */
.fade-in-up {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 1s ease, transform 1s ease;
}

/* 화면에 보일 때 추가되는 클래스 */
.fade-in-up.show {
  opacity: 1;
  transform: translateY(0);
}

.title-wrapper > * {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 1.2s ease, transform 1.2s ease;
  will-change: opacity, transform;
}

.title-wrapper > *.show {
  opacity: 1;
  transform: translateY(0);
}