.sec-1 {
  padding-top: 77px;
}
.sec-1 .banner_img {
  border-radius: 8px;
  overflow: hidden;
}
.sec-2 .his_tit h2 {
  font-weight: 400;
  font-size: 160px;
  line-height: 80%;
  letter-spacing: -0.05em;
  color: #f6f8fb;
  margin-top: 111px;
  margin-bottom: 68px;
}
.sec-2 .his_tit p {
  font-size: 70px;
  line-height: 80%;
  color: #f6f8fb;
  letter-spacing: -0.05em;
  margin-bottom: 64px;
}
.sec-2 .his_tit p.small {
  font-size: 30px;
  line-height: 1.5;
  letter-spacing: -0.05em;
  margin-bottom: 157px;
}
.problem_tit h2 {
  font-size: 100px;
  line-height: 80%;
  margin-bottom: 54px;
  color: var(--orange);
  font-weight: 400;
}
.problem_tit.green h2 {
  color: #35cb58;
}
.problem_tit.sky h2 {
  color: #a0bfeb;
}
.problem_tit .sub {
  font-size: 60px;
  line-height: 80%;
  margin-bottom: 109px;
  color: #fff;
}
.problem_desc {
  color: #fff;
  font-size: 25px;
  letter-spacing: -0.02em;
}
.problem_desc b {
  font-weight: 700;
  color: var(--orange);
}
.problem_cards {
  margin-top: 147px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.problem_card {
  position: relative;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  height: 450px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.problem_card::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 120px;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0) 0%,
    rgba(0, 0, 0, 0.5) 100%
  );
}
.problem_card h3 {
  font-size: 40px;
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: #fff;
  margin-top: 12px;
  text-align: center;
}
.problem_card .icon {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.problem_card p {
  font-size: 24px;
  line-height: 1.4;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  text-align: center;
  color: #fff;
  z-index: 1;
  position: relative;
}
.two_grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.two_grid .grid_con {
  border-radius: 8px;
  overflow: hidden;
  text-align: center;
  padding: 46px;
  background: #efefee;
}

.two_grid .grid_con h3 {
  color: var(--orange);
  font-size: 60px;
  line-height: 1.4;
  letter-spacing: -0.02em;
}
.two_grid .grid_con p {
  font-weight: 600;
  font-size: 30px;
  line-height: 1.8;
  letter-spacing: -0.02em;
  color: #000;
}

.two_grid .grid_con.org {
  background: var(--orange);
}
.two_grid .grid_con.org h3 {
  color: #fff;
}
.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.card {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
}
.card-media {
  overflow: hidden;
}
.card img {
  display: block;
  width: 100%;
  /* height: 700px; */
  /* object-fit: cover; */
  transition:
    transform 0.6s ease,
    filter 0.6s ease;
}
.card:hover img {
  transform: scale(1.08);
  filter: blur(3px);
}
.card-desc {
  position: absolute;
  left: 0;
  right: 0;
  top: 40px;
  padding: 0 24px;
  text-align: center;
  color: #fff;
  z-index: 2;
  font-weight: 600;
  font-size: 24px;
  line-height: 140%;
  letter-spacing: -2%;
  text-align: center;
}
.card-overlay {
  position: absolute;
  left: 10px;
  right: 0;
  bottom: 10px;
  padding: 12px;
  text-align: center;
  background: rgba(255, 255, 255, 0.2);
  -webkit-backdrop-filter: blur(10px) saturate(0.5);
  backdrop-filter: blur(10px) saturate(0.5);
  color: #fff;
  z-index: 2;
  width: calc(100% - 20px);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 94px;
  border-radius: 6px;
}
.card-overlay h3 {
  font-family: var(--notosans);
  font-weight: 600;
  font-size: 50px;
  line-height: 140%;
  letter-spacing: -2%;
  text-align: center;
}
.gallery-grid.two {
  grid-template-columns: 1fr 1fr;
}
.gallery-grid.two .card-desc {
  font-weight: 600;
  font-size: 40px;
  top: 47px;
}
.gallery-grid.two .card-desc.black {
  color: #000;
}
.gallery-grid.two h3 {
  font-weight: 600;
  font-size: 24px;
  line-height: 140%;
}
.gallery-grid.two .card-overlay {
  background: transparent;
  -webkit-backdrop-filter: blur(0);
  backdrop-filter: blur(0);
  color: #fff;
}
.gallery-grid.four {
  grid-template-columns: 1fr 1fr;
  margin-top: 28px;
}
.about_title {
  padding: 82px 10px 187px 30px;
  display: flex;
  justify-content: space-between;
}
.about_title p {
  color: #fff;
  font-weight: 400;
  font-size: 20px;
  letter-spacing: -0.05em;
}
.about_title .inc p {
  font-size: 40px;
}
.about_title .desc {
  max-width: 700px;
}
.sec-3 {
  padding: 128px 0 92px;
}
.sec-6 {
  padding-top: 140px;
}
.sec-6 .problem_tit h2 {
  color: #fff;
  line-height: 1.2;
}
.sec-6 .problem_tit h2 b {
  font-weight: 400;
  color: var(--orange);
}

.sec-6 .problem_tit .sub {
  font-size: 30px;
  line-height: 1.5;
  letter-spacing: -0.05em;
}
.thr_grid {
  margin-top: 113px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  justify-items: center;
  gap: 10px;
}
.thr_grid .grid_con {
  padding: 24px;
  min-height: 450px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.company {
  font-size: 40px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 30px;
}
.com_img {
  max-width: 250px;
  width: 100%;
}

/* ===== text banner */
.txt-banner {
  padding: 10px;
}
.sec-6 .txt-banner,
.sec-6 .txt-banner .inner {
  padding: 0;
}
.txt-banner .txt_con {
  border-radius: 8px;
  background: #fff;
  padding: 32px 2.4vw;
}
.txt-banner p {
  font-family: var(--mozilla);
  font-weight: 400;
  font-size: clamp(22px, 4.4vw, 65px);
  line-height: 90%;
  letter-spacing: -2%;
  text-align: center;
  white-space: nowrap;
}
.txt-banner.orange .txt_con {
  display: block;
  background: var(--orange);
  transition: 0.5s all;
  margin-bottom: 34px;
}
.sec-7 {
  padding-top: 243px;
}
.sec-8 {
  padding-top: 218px;
}
.problem_cards.five {
  grid-template-columns: repeat(5, 1fr);
  margin-top: 96px;
}
.problem_cards.five .problem_card {
  height: 434px;
}
.problem_cards.five .problem_card .icon {
  display: flex;
  align-items: center;
  justify-content: center;
}
.problem_cards.five .problem_card h3 {
  font-size: 30px;
}
.problem_cards.five .problem_card p {
  font-size: 18px;
  margin-left: 28px;
  margin-bottom: 37px;
  text-align: left;
}
.problem_card.org {
  background: #f95906;
}
.end_banner {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  padding-top: 10px;
}
.end_banner p {
  position: absolute;
  bottom: 53px;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  font-size: 30px;
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1.5;
  text-align: center;
  color: #fff;
}

/* =========================================================
   반응형 (1440 / 1024 / 768 / 500 / 360)
   .subbaner / .sub_nav 은 sub.css 에서 공통 처리됨
   ========================================================= */

/* ----- ~1440px ----- */
@media screen and (max-width: 1440px) {
  /* sec-2 */
  .sec-2 .his_tit h2 {
    font-size: 120px;
    margin-top: 80px;
    margin-bottom: 50px;
  }
  .sec-2 .his_tit p {
    font-size: 54px;
    margin-bottom: 50px;
  }
  .sec-2 .his_tit p.small {
    margin-bottom: 100px;
  }
  /* problem_tit */
  .problem_tit h2 {
    font-size: 80px;
    margin-bottom: 40px;
  }
  .problem_tit .sub {
    font-size: 48px;
    margin-bottom: 60px;
  }
  .problem_desc {
    font-size: 22px;
  }
  /* problem_cards */
  .problem_cards {
    margin-top: 90px;
  }
  .problem_card {
    height: 380px;
  }
  .problem_card h3 {
    font-size: 32px;
  }
  .problem_card p {
    font-size: 20px;
  }
  /* two_grid */
  .two_grid .grid_con {
    padding: 40px;
  }
  .two_grid .grid_con h3 {
    font-size: 48px;
  }
  .two_grid .grid_con p {
    font-size: 26px;
  }
  /* gallery / card */
  .card-overlay h3 {
    font-size: 40px;
  }
  .gallery-grid.two .card-desc {
    font-size: 32px;
    top: 32px;
  }
  /* about_title */
  .about_title {
    padding: 120px 0;
    gap: 60px;
  }
  .about_title .inc p {
    font-size: 32px;
  }
  .about_title p {
    font-size: 18px;
  }
  .about_title .desc {
    max-width: 560px;
  }
  /* sec-3 */
  .sec-3 {
    padding-top: 140px;
  }
  /* sec-6 */
  .sec-6 {
    padding-top: 100px;
  }
  .sec-6 .problem_tit .sub {
    font-size: 26px;
  }
  .thr_grid {
    margin-top: 80px;
  }
  .thr_grid .grid_con {
    min-height: 360px;
  }
  .company {
    font-size: 32px;
  }
  .com_img {
    max-width: 200px;
  }
  /* sec-7 / sec-8 */
  .sec-7 {
    padding-top: 160px;
  }
  .sec-8 {
    padding-top: 160px;
  }
  .problem_cards.five {
    margin-top: 70px;
  }
  .problem_cards.five .problem_card {
    height: 360px;
  }
  .problem_cards.five .problem_card h3 {
    font-size: 26px;
  }
  .problem_cards.five .problem_card p {
    font-size: 16px;
    margin-left: 20px;
  }
  /* end_banner */
  .end_banner p {
    font-size: 24px;
    bottom: 40px;
  }
}

/* ----- ~1024px ----- */
@media screen and (max-width: 1024px) {
  /* sec-2 */
  .sec-2 .his_tit h2 {
    font-size: 90px;
    margin-top: 60px;
    margin-bottom: 40px;
  }
  .sec-2 .his_tit p {
    font-size: 42px;
    margin-bottom: 40px;
  }
  .sec-2 .his_tit p.small {
    margin-bottom: 70px;
  }
  /* problem_tit */
  .problem_tit h2 {
    font-size: 64px;
    margin-bottom: 24px;
  }
  .problem_tit .sub {
    font-size: 36px;
    margin-bottom: 40px;
  }
  .problem_desc {
    font-size: 20px;
  }
  /* problem_cards */
  .problem_cards {
    grid-template-columns: repeat(2, 1fr);
    margin-top: 60px;
  }
  .problem_card {
    height: 340px;
  }
  .problem_card h3 {
    font-size: 30px;
  }
  .problem_card p {
    font-size: 18px;
  }
  .problem_cards.five .problem_card .icon img {
    max-width: 60%;
    max-height: 82%;
    object-fit: contain;
  }
  /* two_grid */
  .two_grid .grid_con {
    padding: 34px;
  }
  .two_grid .grid_con h3 {
    font-size: 40px;
  }
  .two_grid .grid_con p {
    font-size: 24px;
  }
  /* gallery / card */
  .card-overlay {
    height: 74px;
  }
  .card-overlay h3 {
    font-size: 32px;
  }
  .card-desc {
    font-size: 20px;
  }
  .gallery-grid.two .card-desc {
    font-size: 26px;
  }
  /* about_title */
  .about_title {
    padding: 100px 0;
    gap: 40px;
  }
  .about_title .inc p {
    font-size: 28px;
  }
  .about_title p {
    font-size: 17px;
  }
  .about_title .desc {
    max-width: 50%;
  }
  /* sec-5 */
  .sec-3 {
    padding-top: 110px;
  }
  /* sec-6 */
  .sec-6 {
    padding-top: 80px;
  }
  .sec-6 .problem_tit .sub {
    font-size: 22px;
  }
  .thr_grid {
    margin-top: 60px;
  }
  .thr_grid .grid_con {
    min-height: 300px;
    padding: 20px;
  }
  .company {
    font-size: 28px;
    margin-bottom: 20px;
  }
  .com_img {
    max-width: 170px;
  }
  /* sec-7 / sec-8 */
  .sec-7 {
    padding-top: 110px;
  }
  .sec-8 {
    padding-top: 110px;
  }
  .problem_cards.five {
    grid-template-columns: repeat(3, 1fr);
  }
  .problem_cards.five .problem_card {
    height: 300px;
  }
  .problem_cards.five .problem_card h3 {
    font-size: 24px;
  }
  .problem_cards.five .problem_card p {
    font-size: 16px;
    margin-bottom: 16px;
    text-align: center;
    margin-left: 0;
  }
  /* end_banner */
  .end_banner p {
    font-size: 20px;
    bottom: 30px;
  }
}

/* ----- ~768px ----- */
@media screen and (max-width: 768px) {
  /* sec-2 */
  .sec-2 .his_tit h2 {
    font-size: 64px;
    margin-top: 40px;
    margin-bottom: 30px;
  }
  .sec-2 .his_tit p {
    font-size: 30px;
    margin-bottom: 30px;
  }
  .sec-2 .his_tit p.small {
    font-size: 22px;
    margin-bottom: 50px;
  }
  /* problem_tit */
  .problem_tit h2 {
    font-size: 48px;
  }
  .problem_tit .sub {
    font-size: 26px;
    margin-bottom: 30px;
  }
  .problem_desc {
    font-size: 16px;
  }
  .problem_desc br {
    display: none;
  }
  /* problem_cards → 1열 */
  .problem_cards {
    grid-template-columns: 1fr;
  }
  .problem_card {
    height: 300px;
  }
  .problem_card h3 {
    font-size: 26px;
  }
  .problem_card p {
    font-size: 18px;
  }
  /* two_grid → 1열 */
  .two_grid {
    grid-template-columns: 1fr;
  }
  .two_grid .grid_con {
    padding: 32px;
  }
  .two_grid .grid_con h3 {
    font-size: 34px;
  }
  .two_grid .grid_con p {
    font-size: 20px;
  }
  /* gallery / card */
  .gallery-grid.four,
  .gallery-grid.two {
    grid-template-columns: 1fr;
  }
  .card-overlay {
    height: 56px;
  }
  .card-overlay h3 {
    font-size: 26px;
  }
  .card-desc {
    font-size: 16px;
  }
  .gallery-grid.two .card-desc {
    font-size: 22px;
    top: 24px;
  }
  /* about_title → 세로 정렬 */
  .about_title {
    flex-direction: column;
    padding: 60px 0;
    gap: 24px;
  }
  .about_title .inc p {
    font-size: 24px;
  }
  .about_title p {
    font-size: 16px;
  }
  .about_title p br {
    display: none;
  }
  .about_title .desc {
    max-width: 100%;
  }
  /* sec-3 */
  .sec-3 {
    padding-top: 0;
  }
  /* sec-6 */
  .sec-6 {
    padding-top: 60px;
  }
  /* thr_grid → 1열 */
  .thr_grid {
    grid-template-columns: 1fr;
  }
  .thr_grid .grid_con {
    min-height: auto;
    padding: 30px;
  }
  .company {
    font-size: 24px;
  }
  .com_img {
    max-width: 200px;
  }
  /* sec-7 / sec-8 */
  .sec-7 {
    padding-top: 80px;
  }
  .sec-8 {
    padding-top: 80px;
  }
  .problem_cards.five {
    grid-template-columns: repeat(2, 1fr);
  }
  .problem_cards.five .problem_card {
    height: 280px;
  }
  .problem_cards.five .problem_card h3 {
    font-size: 22px;
  }
  .problem_cards.five .problem_card p {
    font-size: 16px;
  }
  /* end_banner */
  .end_banner p {
    font-size: 18px;
    bottom: 24px;
  }
}

/* ----- ~500px ----- */
@media screen and (max-width: 500px) {
  /* sec-2 */
  .sec-2 .his_tit h2 {
    font-size: 44px;
  }
  .sec-2 .his_tit p {
    font-size: 24px;
  }
  .sec-2 .his_tit p.small {
    font-size: 18px;
  }
  .sec-2 .his_tit p.small br {
    display: none;
  }
  /* problem_tit */
  .problem_tit h2 {
    font-size: 36px;
  }
  .problem_tit .sub {
    font-size: 22px;
  }
  /* two_grid */
  .two_grid .grid_con {
    padding: 28px;
  }
  .two_grid .grid_con h3 {
    font-size: 28px;
  }
  .two_grid .grid_con p {
    font-size: 18px;
  }
  /* card */
  .card-overlay {
    height: 48px;
  }
  .card-overlay h3 {
    font-size: 22px;
  }
  .card-desc {
    font-size: 15px;
  }
  .gallery-grid.two .card-desc {
    font-size: 18px;
  }
  /* about_title */
  .about_title {
    padding: 40px 0;
  }
  .about_title .inc p {
    font-size: 20px;
  }
  .about_title p {
    font-size: 15px;
  }
  /* problem_card */
  .problem_card h3 {
    font-size: 24px;
  }
  /* problem_cards.five → 1열 */
  .problem_cards.five {
    grid-template-columns: 1fr;
  }
  .problem_cards.five .problem_card {
    height: 300px;
  }
  .problem_cards.five .problem_card h3 {
    font-size: 26px;
  }
  .problem_cards.five .problem_card p {
    font-size: 18px;
  }
  /* end_banner */
  .end_banner p {
    font-size: 16px;
    bottom: 18px;
  }
  .end_banner p br {
    display: none;
  }
}

/* ----- ~360px ----- */
@media screen and (max-width: 360px) {
  .sec-2 .his_tit h2 {
    font-size: 34px;
  }
  .sec-2 .his_tit p {
    font-size: 20px;
  }
  .problem_tit h2 {
    font-size: 28px;
  }
  .problem_tit .sub {
    font-size: 18px;
  }
  .problem_card h3 {
    font-size: 22px;
  }
  .two_grid .grid_con h3 {
    font-size: 24px;
  }
  .two_grid .grid_con p {
    font-size: 16px;
  }
  .about_title .inc p {
    font-size: 18px;
  }
  .about_title p {
    font-size: 14px;
  }
  .card-overlay h3 {
    font-size: 18px;
  }
  .company {
    font-size: 20px;
  }
  .problem_cards.five .problem_card h3 {
    font-size: 22px;
  }
  .problem_cards.five .problem_card .icon img {
    max-height: 73%;
  }
}