@charset "UTF-8";

:root {
  --navy: #123f70;
  --navy-deep: #0c345f;
  --orange: #f15a32;
  --muted: #5d7189;
  --line: #d8dde3;
  --paper: #ffffff;
  --caption: #fff5ed;
  --content-width: 1400px;
  color-scheme: light;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--navy);
  background: var(--paper);
  font-family: "Noto Sans KR", "Malgun Gothic", "Apple SD Gothic Neo", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  word-break: keep-all;
  overflow-wrap: break-word;
}

html[lang="en"] body {
  font-family: "Noto Sans", Arial, Helvetica, sans-serif;
  word-break: normal;
}

html[lang="zh-CN"] body {
  font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  word-break: normal;
}

img { display: block; max-width: 100%; }

.mobile-copy { display: none; }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 16px;
  color: #fff;
  background: #111;
  border-radius: 8px;
  transform: translateY(-180%);
}

.skip-link:focus { transform: translateY(0); }

.language-menu {
  position: absolute;
  top: 28px;
  right: clamp(18px, 3vw, 48px);
  z-index: 50;
  color: var(--navy-deep);
}

.language-menu details { position: relative; }

.language-menu summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-width: 160px;
  min-height: 50px;
  padding: 11px 18px;
  border: 1px solid rgba(12, 52, 95, .16);
  border-radius: 999px;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 7px 20px rgba(4, 34, 57, .18);
  font-size: 16px;
  line-height: 1;
  font-weight: 800;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.language-menu summary::-webkit-details-marker { display: none; }

.language-menu__arrow {
  font-size: 12px;
  transition: transform .2s ease;
}

.language-menu details[open] .language-menu__arrow { transform: rotate(180deg); }

.language-menu ul {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 100%;
  min-width: 160px;
  margin: 0;
  padding: 7px;
  border: 1px solid rgba(12, 52, 95, .13);
  border-radius: 15px;
  background: #fff;
  box-shadow: 0 10px 28px rgba(4, 34, 57, .2);
  list-style: none;
}

.language-menu a {
  display: block;
  padding: 9px 12px;
  border-radius: 9px;
  color: var(--navy-deep);
  font-size: 15px;
  line-height: 1.25;
  font-weight: 700;
  text-decoration: none;
}

.language-menu a:hover,
.language-menu a:focus-visible,
.language-menu a[aria-current="page"] {
  color: #fff;
  background: var(--navy-deep);
}

.hero {
  position: relative;
  height: 70vh;
  height: 70svh;
  min-height: 480px;
  overflow: hidden;
  color: #fff;
  isolation: isolate;
}

.hero__image,
.hero__shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero__image { object-fit: cover; object-position: center 52%; }

.hero__shade {
  z-index: 1;
  background: linear-gradient(180deg, rgba(4, 34, 57, .16), rgba(4, 34, 57, .42));
}

.hero__content {
  position: absolute;
  z-index: 2;
  inset: 50% auto auto 50%;
  width: min(90%, 900px);
  text-align: center;
  text-shadow: 0 2px 10px rgba(0, 0, 0, .55);
  transform: translate(-50%, -50%);
}

.hero h1 {
  margin: 0;
  font-size: clamp(42px, 5vw, 76px);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -.035em;
}

.hero__english {
  margin: 10px 0 0;
  font-size: clamp(21px, 2.5vw, 42px);
  line-height: 1.2;
  font-weight: 700;
}

.hero__korean {
  margin: 12px 0 0;
  font-size: clamp(19px, 2.3vw, 38px);
  line-height: 1.25;
  font-weight: 700;
}

main { padding-bottom: 170px; }

.content-section {
  width: min(calc(100% - 48px), var(--content-width));
  margin-inline: auto;
}

.intro {
  padding-top: 110px;
  text-align: center;
}

.brand-lockup {
  display: block;
  width: min(100%, 600px);
  margin: 0 auto 58px;
}

.brand-lockup__image { width: 100%; height: auto; }

.intro h2,
.outro h2 {
  margin: 0;
  color: var(--navy-deep);
  font-size: clamp(30px, 3.25vw, 54px);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -.035em;
}

.intro > p,
.outro > p {
  max-width: 1200px;
  margin: 24px auto 0;
  color: var(--navy);
  font-size: clamp(17px, 1.45vw, 26px);
  line-height: 1.7;
  font-weight: 400;
}

.intro--en > p + p,
.intro--zh > p + p { margin-top: 18px; }

.section-rule {
  width: min(calc(100% - 48px), var(--content-width));
  height: 1px;
  margin: 105px auto 92px;
  background: var(--line);
}

.section-heading {
  display: flex;
  align-items: flex-start;
  gap: 22px;
  margin-bottom: 38px;
}

.section-heading__number {
  flex: 0 0 auto;
  color: var(--orange);
  font-size: clamp(28px, 3.3vw, 54px);
  line-height: 1;
  font-weight: 800;
  letter-spacing: -.04em;
}

.section-heading h2 {
  margin: 0;
  color: var(--navy-deep);
  font-size: clamp(29px, 3.25vw, 54px);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -.035em;
}

.section-heading p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: clamp(16px, 1.45vw, 26px);
  line-height: 1.45;
}

.facility-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  padding: 34px 0;
  border: 2px solid #d4d7da;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 2px 6px rgba(20, 55, 86, .05);
}

.facility-panel article { padding: 0 34px; }

.facility-panel__cluster { border-left: 2px solid #d4d7da; }

.facility-panel__label {
  margin: 0 0 10px;
  color: var(--orange);
  font-size: clamp(17px, 1.45vw, 25px);
  line-height: 1.3;
  font-weight: 800;
}

.facility-panel h3 {
  margin: 0;
  color: var(--navy-deep);
  font-size: clamp(26px, 2.7vw, 45px);
  line-height: 1.25;
  font-weight: 800;
}

.facility-panel__primary > p:last-child {
  margin: 12px 0 0;
  color: #777;
  font-size: clamp(16px, 1.45vw, 25px);
}

.facility-panel ul {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.facility-panel li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  color: var(--navy-deep);
  font-size: clamp(17px, 1.5vw, 26px);
  line-height: 1.35;
}

.facility-panel li strong::before { content: "· "; }
.facility-panel li span { color: #7588a1; font-weight: 800; letter-spacing: .22em; }

.facility-panel--en li span,
.facility-panel--zh li span { letter-spacing: 0; }

.facility-panel--en { grid-template-columns: .9fr 1.1fr; }

.map-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #eee;
  border: 0;
}

.map-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.map-caption {
  margin: 0;
  padding: 25px 28px;
  color: var(--navy-deep);
  background: var(--caption);
  border-radius: 0 0 12px 12px;
  text-align: center;
  font-size: clamp(17px, 1.45vw, 25px);
  line-height: 1.55;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.benefit-card {
  min-height: 290px;
  padding: 27px 22px 30px;
  border: 2px solid #d4d7da;
  border-radius: 18px;
  background: #fff;
}

.benefit-card > span {
  display: block;
  margin-bottom: 16px;
  color: var(--orange);
  font-size: clamp(18px, 1.6vw, 27px);
  line-height: 1;
  font-weight: 800;
}

.benefit-card h3 {
  margin: 0;
  color: var(--navy-deep);
  font-size: clamp(19px, 1.8vw, 30px);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -.025em;
}

.benefit-card p {
  margin: 24px 0 0;
  color: var(--navy);
  font-size: clamp(15px, 1.25vw, 22px);
  line-height: 1.55;
}

.benefit-grid--en .benefit-card h3 {
  min-height: 2.5em;
  font-size: clamp(18px, 1.55vw, 27px);
}
.benefit-grid--en .benefit-card p { font-size: clamp(14px, 1.08vw, 19px); }

.outro { padding-top: 0; text-align: center; }

.back-to-top {
  display: flex;
  justify-content: center;
  width: min(calc(100% - 48px), var(--content-width));
  margin: 82px auto 0;
}

.back-to-top a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 150px;
  min-height: 52px;
  padding: 12px 24px;
  color: #fff;
  background: var(--navy-deep);
  border-radius: 999px;
  font-size: 17px;
  line-height: 1.2;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 8px 22px rgba(12, 52, 95, .2);
  transition: transform .2s ease, background-color .2s ease;
}

.back-to-top a::before {
  content: "↑";
  margin-right: 8px;
  font-size: 20px;
}

.back-to-top a:hover,
.back-to-top a:focus-visible {
  background: var(--orange);
  transform: translateY(-2px);
}

@media (max-width: 900px) {
  body { font-size: 16px; }
  main { padding-bottom: 100px; }
  .intro { padding-top: 72px; }
  .brand-lockup { margin-bottom: 42px; }
  .section-rule { margin-top: 75px; margin-bottom: 65px; }
  .benefit-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .benefit-card { min-height: 245px; }
}

@media (max-width: 640px) {
  .content-section,
  .section-rule { width: min(calc(100% - 32px), var(--content-width)); }
  .hero { height: 70vh; height: 70svh; min-height: 390px; }
  .language-menu { top: 16px; right: 16px; }
  .language-menu summary { min-width: 144px; min-height: 44px; padding: 10px 15px; font-size: 14px; }
  .language-menu ul { min-width: 144px; }
  .language-menu a { font-size: 14px; }
  .hero__image { object-position: 48% center; }
  .hero__content { width: calc(100% - 32px); }
  .brand-lockup { width: min(100%, 600px); }
  .section-heading { gap: 14px; }
  .facility-panel { grid-template-columns: 1fr; padding: 0 22px; }
  .facility-panel article { padding: 26px 0; }
  .facility-panel__cluster { border-top: 1px solid #d4d7da; border-left: 0; }
  .facility-panel li { gap: 8px; }
  .facility-panel--en ul {
    grid-template-columns: minmax(0, 1fr) auto;
    column-gap: 14px;
  }
  .facility-panel--en li { display: contents; }
  .facility-panel--en li strong {
    padding-left: .75em;
    text-align: left;
    text-indent: -.75em;
  }
  .facility-panel--en li span {
    align-self: start;
    text-align: right;
  }
  .map-section { width: 100%; }
  .map-section .section-heading { width: calc(100% - 32px); margin-inline: auto; }
  .map-frame { aspect-ratio: 9 / 12; }
  .map-caption { border-radius: 0; padding-inline: 20px; }
  .benefit-grid { grid-template-columns: 1fr; }
  .benefit-card { min-height: 0; padding: 24px; }
  .benefit-card p { margin-top: 14px; }
  .benefit-grid--en .benefit-card h3 { min-height: 0; }
  .desktop-only { display: none; }
  .desktop-copy { display: none; }
  .mobile-copy { display: inline; }
  .intro > p,
  .map-caption,
  .outro > p,
  .benefit-card p {
    text-align: justify;
    text-align-last: left;
  }
  .intro > p .mobile-copy br,
  .map-caption .mobile-copy br,
  .outro > p .mobile-copy br { display: none; }
  html[lang="ko"] .intro > p,
  html[lang="ko"] .map-caption,
  html[lang="ko"] .outro > p,
  html[lang="ko"] .benefit-card p,
  html[lang="zh-CN"] .intro > p,
  html[lang="zh-CN"] .map-caption,
  html[lang="zh-CN"] .outro > p,
  html[lang="zh-CN"] .benefit-card p { text-justify: inter-character; }
  html[lang="en"] .intro > p,
  html[lang="en"] .map-caption,
  html[lang="en"] .outro > p,
  html[lang="en"] .benefit-card p {
    text-justify: inter-word;
    hyphens: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}