@charset "UTF-8";

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  width: 100%;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: var(--transition);
}

.site-header.is-scrolled,
.site-header.is-open,
.site-header:hover {
  background: rgba(15, 21, 32, 0.96);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 48px), var(--container));
  height: 90px;
  margin: 0 auto;
}

.logo a {
  display: block;
  color: #ffffff;
  font-size: 1.32rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.gnb-list {
  display: flex;
  align-items: center;
}

.gnb-list > li {
  position: relative;
}

.gnb-list > li > a {
  display: inline-flex;
  align-items: center;
  min-height: 90px;
  padding: 0 24px;
  color: #ffffff;
  font-size: 0.98rem;
  font-weight: 500;
}

.depth2 {
  position: absolute;
  top: calc(100% - 8px);
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  min-width: 220px;
  padding: 18px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 22px;
  background: rgba(10, 15, 22, 0.98);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.gnb-list > li:hover .depth2,
.gnb-list > li:focus-within .depth2 {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.depth2 a {
  display: block;
  padding: 10px 12px;
  border-radius: 12px;
  color: rgba(255,255,255,0.88);
  font-size: 0.94rem;
}

.depth2 a:hover,
.depth2 a:focus {
  background: rgba(255,255,255,0.08);
}

.header-utils {
  display: flex;
  align-items: center;
  gap: 12px;
}

.util-link {
  color: rgba(255,255,255,0.9);
  font-size: 0.88rem;
}

.mega-panel {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  padding: 0 0 22px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.site-header:hover .mega-panel,
.site-header:focus-within .mega-panel {
  opacity: 1;
  visibility: visible;
}

.mega-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 48px), var(--container));
  margin: 0 auto;
  padding: 24px 28px;
  border-radius: 0 0 28px 28px;
  background: rgba(10, 15, 22, 0.98);
  border: 1px solid rgba(255,255,255,0.08);
  border-top: 0;
}

.mega-intro p {
  color: rgba(255,255,255,0.58);
  font-size: 0.92rem;
}

.mega-intro strong {
  display: block;
  margin-top: 6px;
  color: #ffffff;
  font-size: 1.1rem;
}

.mega-links {
  display: flex;
  gap: 16px;
}

.mega-links a {
  color: rgba(255,255,255,0.82);
  font-size: 0.92rem;
}

.menu-btn {
  display: none;
  position: relative;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
}

.menu-btn span {
  position: absolute;
  left: 50%;
  width: 20px;
  height: 2px;
  background: #ffffff;
  transform: translateX(-50%);
}

.menu-btn span:nth-child(1) { top: 18px; }
.menu-btn span:nth-child(2) { top: 25px; }
.menu-btn span:nth-child(3) { top: 32px; }

.menu-dim {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.48);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  z-index: 1100;
  width: min(88vw, 420px);
  height: 100vh;
  padding: 24px 20px 32px;
  background: #ffffff;
  transition: var(--transition);
  overflow-y: auto;
}

.mobile-menu-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-line);
}

.mobile-menu-head strong {
  font-size: 1.2rem;
  font-weight: 800;
}

.mobile-close {
  position: relative;
  width: 44px;
  height: 44px;
}

.mobile-close::before,
.mobile-close::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 2px;
  background: var(--color-text);
}

.mobile-close::before { transform: translate(-50%, -50%) rotate(45deg); }
.mobile-close::after { transform: translate(-50%, -50%) rotate(-45deg); }

.mobile-nav {
  padding-top: 10px;
}

.mobile-nav > li {
  border-bottom: 1px solid var(--color-line);
}

.mobile-nav > li > button {
  position: relative;
  width: 100%;
  min-height: 62px;
  padding: 0 40px 0 4px;
  text-align: left;
  font-weight: 700;
}

.mobile-nav > li > button::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 4px;
  transform: translateY(-50%);
}

.mobile-nav > li.active > button::after {
  content: "−";
}

.mobile-nav > li > ul {
  display: none;
  padding: 0 0 14px 4px;
}

.mobile-nav > li.active > ul {
  display: block;
}

.mobile-nav a {
  display: block;
  padding: 10px 0;
  color: var(--color-sub);
}

.site-header.is-open .menu-dim {
  opacity: 1;
  visibility: visible;
}

.site-header.is-open .mobile-menu {
  right: 0;
}

.main-visual {
  position: relative;
  min-height: 100vh;
  padding: 158px 0 40px;
  background: #09111b;
  color: #ffffff;
}

.visual-slide {
  position: relative;
  min-height: calc(100vh - 198px);
}

.visual-bg {
  position: absolute;
  inset: 0;
  border-radius: 0 0 44px 44px;
  background-size: cover;
  background-position: center;
}

.visual-bg.bg-01 {
  background-image: linear-gradient(90deg, rgba(9,17,27,0.86) 0%, rgba(9,17,27,0.56) 42%, rgba(9,17,27,0.22) 100%), url('https://images.unsplash.com/photo-1497436072909-60f360e1d4b1?auto=format&fit=crop&w=1800&q=80');
}

.visual-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 350px;
  gap: 40px;
  align-items: end;
  min-height: calc(100vh - 232px);
}

.visual-kicker {
  margin-bottom: 18px;
  color: rgba(255,255,255,0.78);
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.visual-copy h2 {
  font-size: clamp(2.8rem, 5vw, 5rem);
  line-height: 1.12;
  letter-spacing: -0.05em;
}

.visual-desc {
  max-width: 700px;
  margin-top: 24px;
  color: rgba(255,255,255,0.82);
  font-size: 1.125rem;
}

.visual-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.visual-sidecards {
  display: grid;
  gap: 14px;
}

.side-card {
  display: block;
  padding: 28px;
  border-radius: 26px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(14px);
}

.side-card span {
  display: block;
  margin-bottom: 12px;
  color: rgba(255,255,255,0.62);
  font-size: 0.9rem;
}

.side-card strong {
  font-size: 1.28rem;
  line-height: 1.35;
}

.visual-nav {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.visual-nav button {
  min-height: 62px;
  border-radius: 20px;
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.74);
}

.visual-nav button.is-current {
  background: rgba(255,255,255,0.18);
  color: #ffffff;
}

.overview-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 20px;
}

.stat-card {
  min-height: 260px;
  padding: 32px;
  border: 1px solid var(--color-line);
  border-radius: 28px;
  background: #ffffff;
}

.stat-card.large {
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.stat-card span {
  display: block;
  color: var(--color-sub);
  font-size: 0.92rem;
}

.stat-card strong {
  display: block;
  margin-top: 18px;
  font-size: 3.1rem;
  line-height: 1;
  letter-spacing: -0.05em;
}

.stat-card p {
  margin-top: 20px;
  color: var(--color-sub);
}

.sustain-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.sustain-card {
  position: relative;
  min-height: 420px;
  padding: 32px;
  border-radius: 32px;
  overflow: hidden;
}

.sustain-card.small {
  min-height: 200px;
}

.sustain-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.sustain-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.12) 0%, rgba(0,0,0,0.7) 100%);
}

.bg-one::before { background-image: url('https://images.unsplash.com/photo-1497435334941-8c899ee9e8e9?auto=format&fit=crop&w=1400&q=80'); }
.bg-two::before { background-image: url('https://images.unsplash.com/photo-1518005020951-eccb494ad742?auto=format&fit=crop&w=1400&q=80'); }
.bg-three::before { background-image: url('https://images.unsplash.com/photo-1516937941344-00b4e0337589?auto=format&fit=crop&w=1400&q=80'); }
.bg-four::before { background-image: url('https://images.unsplash.com/photo-1473448912268-2022ce9509d8?auto=format&fit=crop&w=1400&q=80'); }

.sustain-copy {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: end;
  min-height: 100%;
  color: #ffffff;
}

.sustain-copy span {
  display: block;
  margin-bottom: 12px;
  color: rgba(255,255,255,0.72);
  font-size: 0.9rem;
}

.sustain-copy strong {
  font-size: 1.8rem;
  line-height: 1.25;
}

.sustain-copy p {
  margin-top: 14px;
  color: rgba(255,255,255,0.82);
}

.business-tabs {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-bottom: 34px;
}

.business-tabs button {
  min-height: 54px;
  padding: 0 28px;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  color: var(--color-sub);
  background: #ffffff;
}

.business-tabs button.is-active {
  border-color: var(--color-point);
  background: var(--color-point);
  color: #ffffff;
}

.business-panel {
  display: none;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 32px;
  align-items: center;
}

.business-panel.is-active {
  display: grid;
}

.panel-thumb {
  min-height: 560px;
  border-radius: 32px;
  overflow: hidden;
}

.panel-info {
  padding: 30px 0;
}

.panel-info span {
  display: block;
  color: var(--color-point);
  font-size: 0.95rem;
  font-weight: 700;
}

.panel-info strong {
  display: block;
  margin-top: 16px;
  font-size: 2.45rem;
  line-height: 1.26;
  letter-spacing: -0.04em;
}

.panel-info p {
  margin-top: 20px;
  color: var(--color-sub);
  font-size: 1.05rem;
}

.panel-link {
  display: inline-flex;
  margin-top: 30px;
  font-weight: 700;
}

.innovation-inner {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 40px;
  align-items: start;
}

.innovation-list {
  display: grid;
  gap: 18px;
}

.innovation-list article {
  padding: 28px 30px;
  border-radius: 28px;
  background: #ffffff;
}

.innovation-list span {
  display: block;
  color: var(--color-point);
  font-size: 0.95rem;
  font-weight: 700;
}

.innovation-list strong {
  display: block;
  margin-top: 14px;
  font-size: 1.5rem;
}

.innovation-list p {
  margin-top: 12px;
  color: var(--color-sub);
}

.news-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr 1fr 1fr;
  gap: 20px;
}

.news-item {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 300px;
  padding: 28px;
  border: 1px solid var(--color-line);
  border-radius: 28px;
  transition: var(--transition);
}

.news-item:hover {
  transform: translateY(-6px);
}

.news-item.featured {
  background: var(--color-soft);
}

.news-category {
  display: inline-flex;
  width: fit-content;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(182,31,47,0.08);
  color: var(--color-point);
  font-size: 0.86rem;
  font-weight: 700;
}

.news-item strong {
  display: block;
  margin-top: 20px;
  font-size: 1.5rem;
  line-height: 1.35;
}

.news-item p {
  margin-top: 16px;
  color: var(--color-sub);
}

.news-item em {
  display: block;
  margin-top: 24px;
  color: var(--color-sub);
  font-style: normal;
}

.archive-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.archive-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  width: min(820px, 100%);
}

.archive-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 92px;
  padding: 0 26px;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 24px;
  color: #ffffff;
}

.archive-links a::after {
  content: "+";
  font-size: 1.1rem;
}

.site-footer {
  padding: 42px 0 38px;
  background: #0b1119;
  color: rgba(255,255,255,0.82);
}

.footer-top,
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-top {
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand strong {
  display: block;
  color: #ffffff;
  font-size: 1.2rem;
}

.footer-brand p {
  margin-top: 8px;
  color: rgba(255,255,255,0.58);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: end;
  gap: 18px 24px;
}

.footer-bottom {
  padding-top: 22px;
  color: rgba(255,255,255,0.58);
  font-size: 0.94rem;
}

@media all and (max-width: 1439px) {
  .header-inner,
  .mega-inner {
    width: min(calc(100% - 40px), 1320px);
  }

  .visual-inner {
    grid-template-columns: minmax(0, 1fr) 320px;
  }

  .overview-grid,
  .news-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .overview-grid .large,
  .news-item.featured {
    grid-column: span 2;
  }
}

@media all and (max-width: 1279px) {
  .header-inner {
    width: calc(100% - 32px);
    height: 82px;
  }

  .gnb,
  .mega-panel {
    display: none;
  }

  .menu-btn {
    display: block;
  }

  .main-visual {
    padding-top: 138px;
  }

  .visual-inner,
  .innovation-inner,
  .business-panel,
  .archive-inner {
    grid-template-columns: 1fr;
  }

  .visual-inner {
    align-items: end;
  }

  .visual-sidecards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sustain-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .business-tabs {
    flex-wrap: wrap;
  }

  .panel-thumb {
    min-height: 420px;
  }

  .archive-links {
    grid-template-columns: 1fr;
    width: 100%;
  }

  .footer-top,
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media all and (max-width: 767px) {
  .site-header {
    border-bottom-color: rgba(255,255,255,0.06);
  }

  .header-inner {
    width: calc(100% - 24px);
    height: 72px;
  }

  .logo a {
    font-size: 1.08rem;
  }

  .util-link {
    display: none;
  }

  .main-visual {
    min-height: auto;
    padding: 112px 0 28px;
  }

  .visual-slide,
  .visual-inner {
    min-height: auto;
  }

  .visual-bg {
    border-radius: 0 0 28px 28px;
  }

  .visual-inner {
    gap: 24px;
  }

  .visual-copy h2 {
    font-size: 2.3rem;
  }

  .visual-desc {
    font-size: 0.98rem;
  }

  .visual-sidecards,
  .visual-nav,
  .overview-grid,
  .sustain-grid,
  .news-grid {
    grid-template-columns: 1fr;
  }

  .overview-grid .large,
  .news-item.featured {
    grid-column: auto;
  }

  .side-card,
  .stat-card,
  .sustain-card,
  .news-item {
    min-height: auto;
  }

  .sustain-card {
    min-height: 320px;
  }

  .sustain-card.small {
    min-height: 180px;
  }

  .business-tabs {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 6px;
  }

  .business-tabs::-webkit-scrollbar {
    height: 4px;
  }

  .business-tabs button {
    flex: 0 0 auto;
    min-height: 48px;
    padding: 0 20px;
  }

  .panel-thumb {
    min-height: 280px;
  }

  .panel-info strong {
    font-size: 1.85rem;
  }

  .archive-links a {
    min-height: 78px;
    padding: 0 20px;
  }

  .footer-bottom {
    font-size: 0.88rem;
  }
}

@media all and (max-width: 320px) {
  .header-inner {
    width: calc(100% - 16px);
  }

  .visual-copy h2 {
    font-size: 2rem;
  }

  .panel-info strong {
    font-size: 1.7rem;
  }
}