button {
  all: unset; /* 모든 기본 스타일 제거 (CSS Reset) */
  display: inline-block; /* 기본적으로 inline-block으로 표시 */
  cursor: pointer; /* 클릭 가능한 버튼 모양 */
  text-align: center; /* 텍스트 중앙 정렬 */
  background-color: transparent; /* 배경 제거 */
  border: none; /* 테두리 제거 */
  padding: 0; /* 패딩 제거 */
  font-size: inherit; /* 부모의 폰트 크기를 상속 */
  font-family: inherit; /* 부모의 폰트 패밀리 상속 */
  outline: none; /* 포커스 테두리 제거 */
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-size: 16px;
}
.content {
  width: 100%;
  height: auto;
  margin-top: 195px;
}

.sectionA {
  width: 100%;
  height: auto;
  background-color: #bed3d8;
  display: flex;
  justify-content: center;
  align-items: center;
}
.sectionA .title {
  position: relative;
  left: 60px;
  font-size: 36px;
  color: #fff;
  font-weight: bold;
  margin-right: 0px;
}

.sectionB {
  width: 100%;
  height: auto;
  /* padding: 80px 0; */
}
.sectionB .articleA {
  text-align: center;
  padding: 80px 0;
  line-height: 1.8;
}
.sectionB .articleA div:nth-child(1) {
  color: #333333;
  font-weight: 700;
  font-size: 32px;
  letter-spacing: 1px;
}
.sectionB .articleA div:nth-child(2) {
  color: #8497b0;
  font-weight: 500;
  font-size: 24px;
  letter-spacing: 1px;
}
.sectionB .articleB {
  width: 100%;
  height: auto;
  background-color: #fff;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  gap: 12px;
  padding-bottom: 160px;
  padding-top: 100px;
}
.sectionB .articleB .list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-right: 20px;
  padding-bottom: 80px;
}
.sectionB .articleB .list div {
  font-size: 20px;
  font-weight: 600;
  color: #585858;
}
.sectionB .articleB .card {
  width: 333px;
  height: 400px;
  background-color: #fff;
  border-radius: 26px;
  box-shadow: 0 0 24px 1px #00000010;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 12px;
  gap: 20px;
}
.sectionB .articleB .card h4 {
  font-size: 22px;
  color: #585858;
  font-weight: 600;
}
.sectionB .articleB .card p {
  font-size: 19px;
  color: #404041;
  font-weight: 400;
  line-height: 1.8;
  /* letter-spacing: 1px; */
}
.sectionB .articleB .card.card-1 {
  position: relative;
  bottom: 74px;
}
.sectionB .articleB .card.card-2 {
  position: relative;
  top: 74px;
}

.sectionC {
  width: 100%;
  height: auto;
  background-color: #f7f7f7;
  padding: 34px 0 66px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 80px;
  position: relative;
}
.sectionC .articleA .first {
  text-align: center;
}
.sectionC .articleA .first span {
  font-size: 32px;
  line-height: 1.6;
  font-weight: 700;
  color: #333333;
}
.sectionC .first span .first-strong {
  font-size: 36px;
  color: #0055a6;
}
.sectionC .articleA .first .br2 {
  display: none;
}
.sectionC .articleB {
  width: 1171px;
  height: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 40px;
}
.sectionC .articleB div {
  font-size: 24px;
  font-weight: 400;
}
.sectionC .articleB .videos {
  /* display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 50px; */
}
.sectionC .articleB iframe {
  border-radius: 20px;
}
.sectionC .articleC {
  width: 100%;
  height: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 40px;
  
}
.sectionC .articleC > div {
  font-size: 24px;
  font-weight: 400;
  /* margin-bottom: 40px; */
}
.sectionC .articleC .qbox {
  width: 1171px;
  height: auto;
  background-color: #fff;
  box-shadow: 0 0 24px 1px #00000010;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 10px;
  padding: 30px 0;
}
.sectionC .articleC .qbox ul {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.sectionC .articleC .qbox .layout-li {
  width: 97%;
  border: solid;
  border-width: 0 0 1px 0;
  border-color: #e9e9e9;
  list-style-type: none;
}
.sectionC .articleC .qbox button {
  width: 98%;
  cursor: pointer;
  background-color: #fff;
}
.sectionC .articleC .qbox button .top {
  width: 100%;
  height: auto;
  display: flex;
  flex-direction: row;
  justify-content: start;
  /* align-items: start; */
  padding: 20px 10px;
}
.sectionC .articleC .qbox button div {
  /* display: flex; */
  align-items: center;
  gap: 20px;
  text-align: left;
}
.sectionC .articleC .qbox button span {
  font-size: 18px;
  font-weight: 500;
  color: #585858;
}

.sectionC .articleC .qbox button p span {
	font-size: 16px;
}
.sectionC .articleC .qbox li p {
  /* width: 65%; */
  font-size: 16px;
  font-weight: 400;
  color: #404041;
  line-height: 1.8;
  text-align: left;
  padding-bottom: 16px;
  margin: 0 60px;
}
.sectionC .articleC .qbox .pc-plus,
.sectionC .articleC .qbox .pc-minus {
  display: block;
}
.sectionC .articleC .qbox .m-plus,
.sectionC .articleC .qbox .m-minus {
  display: none;
}

.arrow_back,
.arrow_next {
  display: none;
}

.pc-only {
  display: inline;
}
.mobile-only {
  display: none;
}

@media (max-width: 1171px) {
  .content {
    margin-top: 185px;
  }

  .sectionB .articleB {
    gap: 40px;
    padding-top: 0px;
    flex-direction: column;
  }
  .sectionB .articleB .card.card-1 {
    position: static;
  }
  .sectionB .articleB .card.card-2 {
    position: static;
  }
  .sectionB .articleB .list {
    gap: 20px;
    margin-right: 0px;
    padding-bottom: 0px;
  }
  .sectionC .articleB iframe:nth-child(3) {
    /* display: none; */
  }
  .sectionC .articleC .qbox {
    width: 100%;
    height: auto;
  }
  
  .sectionC .articleB {
  	width: 90%;
  }
}

@media (max-width: 830px) {
  .content {
    margin-top: 20px;
  }
  .sectionA {
    display: none;
  }

  .sectionC .articleA .first .br2 {
    display: inline;
  }
  .sectionC .articleB iframe:nth-child(2) {
    display: none;
  }
  .sectionC .articleB iframe {
    /* width: 100%;
    height: 184px;
    border-radius: 0px; */
  }
  .sectionC .articleB .videos button {
    position: absolute;
  }
  .sectionC .articleB .videos button:nth-child(1) {
    left: 6%;
  }
  .sectionC .articleB .videos button:nth-child(5) {
    right: 6%;
  }

  .arrow_back,
  .arrow_next {
    display: block;
  }
}

@media (max-width: 480px) {
  .sectionB .articleA {
    text-align: center;
    padding: 40px 0;
    line-height: 1.8;
  }
  .sectionB .articleA div:nth-child(1) {
    color: #333333;
    font-weight: 700;
    font-size: 24px;
    letter-spacing: 0px;
  }
  .sectionB .articleA div:nth-child(2) {
    color: #8497b0;
    font-weight: 500;
    font-size: 14px;
    letter-spacing: 0px;
  }
  .sectionB .articleB {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding-bottom: 30px;
  }
  .sectionB .articleB .card {
    padding-top: 30px;
  }
  .sectionB .articleB .card.card-1 {
    width: 90%;
    height: auto;
  }
  .sectionB .articleB .card.card-2 {
    width: 90%;
    height: auto;
  }
  .sectionB .articleB .list {
    gap: 10px;
  }
  .sectionB .articleB .list div {
    font-size: 17.5px;
    font-weight: 500;
  }
  .sectionB .articleB .card h4 {
    font-size: 16px;
  }
  .sectionB .articleB .card p {
    width: 100%;
    text-align: left;
    font-size: 14px;
    letter-spacing: 0px;
    margin: 0 0 6px 20px;
  }

  .sectionC {
    padding: 30px 0 0 0;
    gap: 30px;
  }
  .sectionC .articleB {
    gap: 20px;
    width: 80%;
  }
  
  .sectionC .articleB .swiper-slide {
  	/* width: 100% !important; */
  }
  .sectionC .articleA .first span {
    font-size: 18px;
  }
  .sectionC .first span .first-strong {
    font-size: 20px;
  }
  .sectionC .articleB div {
    font-size: 16px;
    font-weight: 700;
  }
  .sectionC .articleB iframe {
    /* width: 328px;
    height: 184px; */
  }
  .sectionC .articleC {
    gap: 0px;
  }
  .sectionC .articleC div {
    font-size: 16px;
    font-weight: 700;
  }
  .sectionC .articleC .qbox {
    background: none;
    box-shadow: none;
    padding-top: 20px;
  }
  .sectionC .articleC .qbox ul {
    width: 90% !important;
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  .sectionC .articleC .qbox .layout-li {
    width: 100%;
    border: none;
  }
  .sectionC .articleC .qbox button {
    width: 100%;
    cursor: pointer;
    background-color: #fff;
    border-radius: 24px;
  }
  .sectionC .articleC .qbox button .top {
    flex-direction: row-reverse;
    justify-content: space-between;
    align-items: center;
    padding: 20px 20px;
  }
  
  .sectionC .articleC .qbox button .bottom {
  	padding: 0px 20px;
  }
  
  .sectionC .articleC .qbox li p {
  	margin: 0;
  }
  .sectionC .articleC .qbox button span {
    font-size: 16px;
    color: #292929;
  }
  .sectionC .articleC .qbox .pc-plus,
  .sectionC .articleC .qbox .pc-minus {
    display: none;
  }
  .sectionC .articleC .qbox .m-plus,
  .sectionC .articleC .qbox .m-minus {
    display: block;
  }

  .pc-only {
    display: none;
  }
  .mobile-only {
    display: inline;
  }
}