/* ==========================================================================
   BTN Lab — Corporate Website Stylesheet
   --------------------------------------------------------------------------
   01. Design Tokens
   02. Reset & Base
   03. Layout Utilities
   04. Typography Components
   05. Buttons & Links
   06. Media / Image Slots
   07. Header
   08. Mobile Navigation
   09. HOME — Hero
   10. HOME — About
   11. HOME — IB-100
   12. HOME — Technology
   13. HOME — Research & Field Data
   14. HOME — Milestones
   15. HOME — Mission
   16. HOME — News
   17. HOME — CTA
   18. Footer
   19. Sub Page (공통 서브페이지)
   20. Utilities (To Top, Reveal)
   21. Responsive
   22. Reduced Motion / Print
   ========================================================================== */


/* ==========================================================================
   01. Design Tokens
   ========================================================================== */
:root {
  /* Brand colors */
  --c-navy-950: #061430;
  --c-navy-900: #0A1F44;
  --c-navy-800: #10295A;
  --c-navy-700: #1A3A73;
  --c-blue-600: #1F5BD6;
  --c-blue-500: #2F6FE4;
  --c-blue-100: #E4ECFB;
  --c-blue-50:  #F1F5FD;
  --c-cyan-400: #38BDE0;   /* Accent — 매우 제한적으로 사용 */
  --c-cyan-100: #E2F5FA;

  /* Neutrals */
  --c-ink:         #0B1B34;
  --c-text:        #3A475C;
  --c-muted:       #5E6B80;
  --c-line:        #E2E7EF;
  --c-line-strong: #CAD3E0;
  --c-bg:          #FFFFFF;
  --c-bg-soft:     #F5F7FA;
  --c-bg-tint:     #EEF3F9;

  /* To-be-confirmed marker */
  --c-tbc-text:   #8A5B00;
  --c-tbc-bg:     #FFF7E6;
  --c-tbc-border: #E6C88A;

  /* Typography */
  --font-sans: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont,
               "Apple SD Gothic Neo", "Malgun Gothic", "맑은 고딕", "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  /* Layout */
  --container: 1280px;
  --gutter: clamp(20px, 4vw, 40px);
  --header-h: 84px;
  --section-y: clamp(88px, 10vw, 144px);

  /* Shape & depth */
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(10, 31, 68, .06);
  --shadow:    0 12px 32px -16px rgba(10, 31, 68, .20);
  --shadow-lg: 0 32px 64px -32px rgba(10, 31, 68, .32);

  /* Motion */
  --ease: cubic-bezier(.2, .7, .2, 1);
  --dur: .3s;
}


/* ==========================================================================
   02. Reset & Base
   ========================================================================== */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) - 4px);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-text);
  background: var(--c-bg);
  word-break: keep-all;          /* 한글 어절 단위 줄바꿈 */
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body.nav-open { overflow: hidden; }

h1, h2, h3, h4, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; padding: 0; }
address { font-style: normal; }
[hidden] { display: none !important; }

:focus-visible {
  outline: 2px solid var(--c-blue-600);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection { background: var(--c-blue-100); color: var(--c-navy-900); }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.icon {
  width: 1em;
  height: 1em;
  flex-shrink: 0;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 1000;
  padding: 12px 18px;
  background: var(--c-navy-900);
  color: #fff;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: top .2s;
}
.skip-link:focus { top: 16px; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}


/* ==========================================================================
   03. Layout Utilities
   ========================================================================== */
.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); }
.bg-soft { background: var(--c-bg-soft); }

.section-head { margin-bottom: clamp(48px, 6vw, 72px); max-width: 760px; }

.section-head--split {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: end;
}

.section-head--row {
  max-width: none;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}

.section-foot {
  margin-top: 40px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 32px;
}

.br-sm, .br-md { display: none; }


/* ==========================================================================
   04. Typography Components
   ========================================================================== */
.eyebrow,
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .18em;
  line-height: 1.4;
  color: var(--c-blue-600);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.eyebrow::before,
.section-label::before {
  content: "";
  width: 28px;
  height: 1px;
  background: currentColor;
}

.section-label--light { color: #8FD3EA; }

.section-title {
  font-size: clamp(30px, 3.6vw, 48px);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: -0.03em;
  color: var(--c-ink);
}

.prose { margin-top: 28px; max-width: 620px; }
.prose p { font-size: 17px; line-height: 1.85; color: var(--c-text); }
.prose p + p { margin-top: 16px; }

.section-note {
  margin-top: 32px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
}
.section-foot .section-note { margin-top: 0; max-width: 760px; }

/* .tbc — 내부 검토용 마커 스타일 (공개 버전 HTML에서는 사용하지 않음) */
.tbc {
  display: inline-block;
  padding: 2px 8px;
  font-size: 12.5px;
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 0;
  color: var(--c-tbc-text);
  background: var(--c-tbc-bg);
  border: 1px dashed var(--c-tbc-border);
  border-radius: 4px;
  white-space: nowrap;
}


/* ==========================================================================
   05. Buttons & Links
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 54px;
  padding: 0 28px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .01em;
  line-height: 1.2;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease),
              border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  white-space: nowrap;
}
.btn .icon { font-size: 18px; transition: transform var(--dur) var(--ease); }
.btn:hover .icon { transform: translateX(4px); }

.btn-primary { background: var(--c-navy-900); color: #fff; }
.btn-primary:hover { background: var(--c-blue-600); box-shadow: 0 10px 24px -12px rgba(31, 91, 214, .6); }

.btn-outline { background: #fff; color: var(--c-navy-900); border-color: var(--c-line-strong); }
.btn-outline:hover { border-color: var(--c-navy-900); background: var(--c-navy-900); color: #fff; }

.btn-lg { min-height: 60px; padding: 0 36px; font-size: 16px; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 36px;
  padding-block: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-navy-900);
  border-bottom: 1px solid var(--c-line-strong);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.link-arrow .icon { font-size: 18px; transition: transform var(--dur) var(--ease); }
.link-arrow:hover { color: var(--c-blue-600); border-color: var(--c-blue-600); }
.link-arrow:hover .icon { transform: translateX(4px); }
.section-head--row .link-arrow,
.section-foot .link-arrow { margin-top: 0; }


/* ==========================================================================
   06. Media / Image Slots
   --------------------------------------------------------------------------
   실제 이미지 교체 방법:
   1) <img src="..."> 경로를 실제 이미지로 변경
   2) width/height 속성을 실제 비율에 맞게 수정 (CLS 방지)
   3) <figcaption class="slot-label"> 삭제
   ========================================================================== */
.media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--c-bg-tint);
}
.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--4x3  { aspect-ratio: 4 / 3; }
.media--4x5  { aspect-ratio: 4 / 5; }
.media--16x10 { aspect-ratio: 16 / 10; }
.media--16x9  { aspect-ratio: 16 / 9; }

/* 임시 이미지 표시 라벨 (개발용 배지) — 실제 이미지로 교체 시 figcaption 삭제 */
.slot-label {
  position: absolute;
  left: 12px;
  bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  max-width: calc(100% - 24px);
  padding: 3px 8px 3px 3px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.3;
  color: var(--c-muted);
  background: rgba(255, 255, 255, .88);
  border: 1px solid var(--c-line);
  border-radius: 3px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.slot-tag {
  flex-shrink: 0;
  padding: 1px 5px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--c-tbc-text);
  background: var(--c-tbc-bg);
  border-radius: 2px;
}


/* ==========================================================================
   07. Header
   ========================================================================== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  background: transparent;
  transition: background-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
              height var(--dur) var(--ease);
}
.site-header.is-scrolled,
.site-header.is-menu-open {
  background: rgba(255, 255, 255, .97);
  box-shadow: 0 1px 0 var(--c-line), 0 8px 24px -16px rgba(10, 31, 68, .18);
}
.site-header.is-scrolled { height: 72px; }
@supports ((-webkit-backdrop-filter: blur(8px)) or (backdrop-filter: blur(8px))) {
  .site-header.is-scrolled {
    background: rgba(255, 255, 255, .9);
    -webkit-backdrop-filter: saturate(160%) blur(12px);
    backdrop-filter: saturate(160%) blur(12px);
  }
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 40px;
}

/* Typography Logo */
.logo {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  font-size: 23px;
  line-height: 1;
  letter-spacing: .06em;
  color: var(--c-navy-900);
  flex-shrink: 0;
}
.logo-btn { font-weight: 800; }
.logo-lab {
  font-weight: 400;
  color: var(--c-blue-600);
  padding-left: 8px;
  border-left: 1px solid var(--c-line-strong);
}
.logo--light { color: #fff; }
.logo--light .logo-lab { color: #9DC0F5; border-color: rgba(255, 255, 255, .25); }

/* Global Navigation */
.gnb { margin-left: auto; }
.gnb-list { display: flex; align-items: center; gap: clamp(20px, 2.6vw, 40px); }
.gnb-list a {
  position: relative;
  display: inline-block;
  padding-block: 10px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--c-navy-900);
  transition: color var(--dur) var(--ease);
}
.gnb-list a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 2px;
  height: 2px;
  background: var(--c-blue-600);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur) var(--ease);
}
.gnb-list a:hover,
.gnb-list a[aria-current="page"] { color: var(--c-blue-600); }
.gnb-list a:hover::after,
.gnb-list a[aria-current="page"]::after { transform: scaleX(1); }

/* Utility: language + hamburger */
.header-util { display: flex; align-items: center; gap: 20px; }

.lang {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
}
.lang-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  color: var(--c-muted);
  transition: color var(--dur) var(--ease);
}
.lang-link.is-active { color: var(--c-navy-900); }
.lang-link:hover { color: var(--c-blue-600); }
.lang-sep { color: var(--c-line-strong); }

.lang-link[data-lang-pending] { cursor: default; }
.lang-link[data-lang-pending]::after {
  content: "Coming soon";
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  padding: 5px 9px;
  font-size: 11px;
  letter-spacing: .04em;
  color: #fff;
  background: var(--c-navy-900);
  border-radius: 4px;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity .2s, transform .2s;
}
.lang-link[data-lang-pending]:hover::after,
.lang-link[data-lang-pending]:focus-visible::after,
.lang-link[data-lang-pending].show-tip::after { opacity: 1; transform: none; }

.menu-toggle {
  display: none;
  position: relative;
  width: 48px;
  height: 48px;
  margin-right: -12px;
  border-radius: var(--radius-sm);
}
.menu-toggle-bar {
  position: absolute;
  left: 13px;
  width: 22px;
  height: 2px;
  background: var(--c-navy-900);
  border-radius: 2px;
  transition: transform var(--dur) var(--ease), opacity .2s, top var(--dur) var(--ease);
}
.menu-toggle-bar:nth-child(1) { top: 16px; }
.menu-toggle-bar:nth-child(2) { top: 23px; }
.menu-toggle-bar:nth-child(3) { top: 30px; }
.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(1) { top: 23px; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(3) { top: 23px; transform: rotate(-45deg); }


/* ==========================================================================
   08. Mobile Navigation
   ========================================================================== */
.mobile-nav {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  z-index: 90;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 16px var(--gutter) calc(32px + env(safe-area-inset-bottom, 0px));
  background: #fff;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.mobile-nav.is-open { opacity: 1; transform: none; }

.mobile-nav-list li { border-bottom: 1px solid var(--c-line); }
.mobile-nav-list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  min-height: 60px;
  padding-block: 18px;
}
.mn-en {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--c-navy-900);
}
.mn-ko { font-size: 14px; color: var(--c-muted); }
.mobile-nav-list a[aria-current="page"] .mn-en,
.mobile-nav-list a:hover .mn-en { color: var(--c-blue-600); }

.mobile-nav-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 32px;
}
.mobile-nav-foot .lang-link[data-lang-pending]::after { right: auto; left: 0; top: auto; bottom: calc(100% + 6px); }
.mobile-nav-copy { font-size: 13px; color: var(--c-muted); }


/* ==========================================================================
   09. HOME — Hero
   ========================================================================== */
.hero {
  position: relative;
  padding: calc(var(--header-h) + clamp(48px, 7vw, 96px)) 0 clamp(80px, 9vw, 128px);
  background: var(--c-bg-soft);
  overflow: hidden;
}
/* 우측의 절제된 그리드 패턴 */
.hero::before {
  content: "";
  position: absolute;
  inset: 0 0 0 50%;
  background-image:
    linear-gradient(var(--c-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-line) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: .6;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 45%);
  mask-image: linear-gradient(90deg, transparent, #000 45%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: center;
}

.hero-title { margin: 0; }
.hero-title-en {
  display: block;
  font-size: clamp(40px, 5.4vw, 76px);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.04em;
  color: var(--c-navy-900);
}
.hero-title-ko {
  display: block;
  margin-top: clamp(20px, 2.4vw, 32px);
  font-size: clamp(22px, 2.3vw, 32px);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.03em;
  color: var(--c-navy-700);
}
.hero-desc {
  margin-top: 28px;
  max-width: 540px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--c-text);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 40px;
}
.hero-keywords {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: clamp(40px, 5vw, 64px);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .12em;
  color: var(--c-muted);
  text-transform: uppercase;
}
.hero-keywords::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 2px solid var(--c-cyan-400);
  flex-shrink: 0;
}

.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--c-line);
  box-shadow: var(--shadow-lg);
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; }
.hero-visual .slot-label { top: 16px; bottom: auto; }
.hero-visual-card {
  position: absolute;
  right: 20px;
  bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 20px;
  background: rgba(255, 255, 255, .95);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hvc-k {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-blue-600);
}
.hvc-v { font-size: 14px; font-weight: 600; color: var(--c-navy-900); }


/* ==========================================================================
   10. HOME — About
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: clamp(40px, 8vw, 120px);
  align-items: center;
}
.about-media { max-width: 520px; justify-self: end; width: 100%; }

/* R&D Approach — 기초 연구 → 제품 개발 → 현장 적용·검증 */
.approach {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 40px;
  max-width: 620px;
}
.approach-step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 22px 16px 0 0;
  border-top: 1px solid var(--c-line-strong);
}
.approach-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: -6px;
  width: 11px;
  height: 11px;
  background: #fff;
  border: 2px solid var(--c-blue-600);
  border-radius: 50%;
}
.approach-step:last-child::before { background: var(--c-blue-600); }
.approach-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--c-blue-600);
}
.approach-en {
  margin-top: 6px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--c-ink);
}
.approach-ko { font-size: 13px; color: var(--c-muted); }

.keyword-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: clamp(64px, 8vw, 104px);
}
.keyword-card {
  padding: 36px 32px 40px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}
.keyword-card:hover {
  border-color: var(--c-line-strong);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}
.keyword-icon {
  display: inline-grid;
  place-items: center;
  width: 52px;
  height: 52px;
  font-size: 24px;
  color: var(--c-blue-600);
  background: var(--c-blue-50);
  border-radius: 50%;
}
.keyword-title {
  margin-top: 28px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--c-navy-900);
}
.keyword-desc { margin-top: 8px; font-size: 15px; color: var(--c-muted); line-height: 1.7; }


/* ==========================================================================
   11. HOME — IB-100
   ========================================================================== */
.ib100-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: clamp(40px, 7vw, 112px);
  align-items: center;
}
.ib100-name {
  font-size: clamp(64px, 8vw, 116px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.045em;
  color: var(--c-navy-900);
}
.ib100-sub {
  margin-top: 16px;
  font-size: clamp(18px, 1.7vw, 22px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--c-blue-600);
}
.ib100-text .btn { margin-top: 40px; }

.product-card {
  background: #fff;
  border: 1px solid var(--c-line);
  border-top: 4px solid var(--c-navy-900);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: clamp(28px, 3.4vw, 44px);
}
.product-media { margin-block: 24px 4px; border: 1px solid var(--c-line); }
.product-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--c-navy-900);
}
.product-card-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--c-muted);
}
.product-card-title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--c-navy-900);
}
.spec-row {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 16px;
  padding-block: 18px;
  border-bottom: 1px solid var(--c-line);
}
.spec-row:last-child { border-bottom: 0; padding-bottom: 0; }
.spec-row dt { display: flex; flex-direction: column; gap: 2px; }
.spec-en {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-muted);
}
.spec-ko { font-size: 13px; color: var(--c-muted); }
.spec-row dd {
  align-self: center;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--c-ink);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(64px, 8vw, 96px);
  background: var(--c-line);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.feature-card {
  position: relative;
  padding: 40px 32px 44px;
  background: #fff;
  transition: background-color var(--dur) var(--ease);
}
.feature-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 100%; height: 3px;
  background: var(--c-blue-600);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .4s var(--ease);
}
.feature-card:hover { background: var(--c-blue-50); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--c-blue-600);
}
.feature-icon {
  position: absolute;
  top: 36px;
  right: 32px;
  font-size: 28px;
  color: var(--c-navy-700);
}
.feature-title {
  margin-top: 56px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--c-ink);
}
.feature-ko { margin-top: 8px; font-size: 15px; color: var(--c-muted); }


/* ==========================================================================
   12. HOME — Technology
   ========================================================================== */
.tech-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(40px, 7vw, 112px);
  align-items: start;
}
.tech-media { margin-top: 48px; }

.concept {
  padding: clamp(28px, 3.6vw, 48px);
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.concept-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--c-line);
}
.concept-tag {
  display: inline-block;
  padding: 6px 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--c-navy-800);
  background: var(--c-cyan-100);
  border-radius: 999px;
}
.concept-title { font-size: 15px; font-weight: 600; color: var(--c-ink); }
.concept-title span {
  margin-left: 6px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--c-muted);
}
.concept-intro { margin-top: 20px; font-size: 14px; color: var(--c-muted); }

.concept-flow { margin-top: 24px; }
.concept-step {
  position: relative;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 20px;
  align-items: center;
  padding: 20px 24px;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}
.concept-step + .concept-step { margin-top: 36px; }
/* 단계 간 연결선 + 화살표 — 점선으로 표현해 '개념적 흐름'임을 강조 */
.concept-step + .concept-step::before {
  content: "";
  position: absolute;
  left: 47px;
  top: -37px;
  width: 2px;
  height: 30px;
  background: repeating-linear-gradient(to bottom, var(--c-line-strong) 0 4px, transparent 4px 8px);
}
.concept-step + .concept-step::after {
  content: "";
  position: absolute;
  left: 44px;
  top: -12px;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--c-blue-600);
  border-bottom: 2px solid var(--c-blue-600);
  transform: rotate(45deg);
}
.concept-num {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--c-navy-900);
  background: #fff;
  border: 1px solid var(--c-line-strong);
  border-radius: 50%;
}
.concept-en {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--c-ink);
}
.concept-ko { margin-top: 2px; font-size: 14px; color: var(--c-muted); line-height: 1.6; }

.concept-step--final { background: var(--c-navy-900); border-color: var(--c-navy-900); }
.concept-step--final .concept-num { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .35); }
.concept-step--final .concept-en { color: #fff; }
.concept-step--final .concept-ko { color: rgba(255, 255, 255, .75); }

.concept-note {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px dashed var(--c-line-strong);
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-muted);
}


/* ==========================================================================
   13. HOME — Research & Field Data
   ========================================================================== */
.research .section-head--split .prose { margin-top: 0; }

.research-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.research-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.research-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.research-card .media { border-radius: 0; }
.research-card .media img { transition: transform .8s var(--ease); }
.research-card:hover .media img { transform: scale(1.03); }
.research-body { padding: 28px 28px 32px; }

.study-tag {
  display: inline-block;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  border-radius: 4px;
}
.study-tag--field { color: var(--c-navy-900); border: 1px solid var(--c-navy-900); }
.study-tag--research { color: var(--c-blue-600); background: var(--c-blue-50); border: 1px solid var(--c-blue-100); }

.research-title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  margin-top: 20px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--c-navy-900);
}
.research-title span { font-size: 14px; font-weight: 500; letter-spacing: 0; color: var(--c-muted); }
.research-desc { margin-top: 10px; font-size: 16px; color: var(--c-text); }


/* ==========================================================================
   14. HOME — Milestones
   ========================================================================== */
.milestone-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}
.milestone-card {
  display: flex;
  flex-direction: column;
  padding: 36px 28px 32px;
  background: var(--c-bg-soft);
  border-top: 2px solid var(--c-navy-900);
  border-radius: 0 0 var(--radius) var(--radius);
}
.milestone-icon { font-size: 32px; color: var(--c-navy-700); }
.milestone-media { margin-top: 24px; border: 1px solid var(--c-line); background: #fff; }
.milestone-cat {
  margin-top: 32px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-blue-600);
}
.milestone-title {
  margin-top: 8px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: var(--c-ink);
}
.milestone-meta {
  margin-top: auto;
  padding-top: 28px;
}
.milestone-meta div {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px 12px;
  padding-block: 12px;
  border-top: 1px solid var(--c-line);
}
.milestone-meta dt { font-size: 13px; color: var(--c-muted); }
.milestone-meta dd { font-size: 14px; font-weight: 600; color: var(--c-ink); }


/* ==========================================================================
   15. HOME — Mission
   ========================================================================== */
.mission {
  position: relative;
  padding-block: calc(var(--section-y) * 1.1);
  background: var(--c-navy-900);
  color: #fff;
  overflow: hidden;
}
.mission-deco {
  position: absolute;
  right: -12%;
  top: 50%;
  width: min(760px, 70vw);
  height: auto;
  color: #6FA4F0;
  opacity: .14;
  transform: translateY(-50%);
  pointer-events: none;
}
.mission-inner { position: relative; }
.mission-title {
  max-width: 980px;
  font-size: clamp(36px, 5.4vw, 76px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.04em;
  color: #fff;
}
.mission-lead {
  margin-top: clamp(28px, 3vw, 40px);
  max-width: 880px;
  font-size: clamp(19px, 1.9vw, 26px);
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: -0.02em;
  color: rgba(255, 255, 255, .92);
}
.mission-body {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px clamp(32px, 4vw, 64px);
  margin-top: clamp(48px, 6vw, 80px);
  padding-top: clamp(32px, 4vw, 48px);
  border-top: 1px solid rgba(255, 255, 255, .16);
}
.mission-body p { font-size: 16px; line-height: 1.9; color: rgba(255, 255, 255, .74); }


/* ==========================================================================
   16. HOME — News
   ========================================================================== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.news-grid > li { display: flex; }
.news-card {
  display: flex;
  flex-direction: column;
  width: 100%;
  min-height: 280px;
  padding: 32px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.news-card:hover { border-color: var(--c-line-strong); box-shadow: var(--shadow); }
.news-cat {
  align-self: flex-start;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--c-blue-600);
}
.news-title {
  margin-top: 20px;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: var(--c-ink);
  transition: color var(--dur) var(--ease);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card:hover .news-title { color: var(--c-blue-600); }
.news-excerpt {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--c-line);
  font-size: 14px;
  color: var(--c-muted);
}
.news-meta .icon { font-size: 18px; color: var(--c-navy-900); transition: transform var(--dur) var(--ease); }
.news-card:hover .news-meta .icon { transform: translateX(4px); color: var(--c-blue-600); }
.news-card--placeholder time { font-family: var(--font-mono); letter-spacing: .04em; }
.news-card > .news-excerpt { margin-bottom: 32px; }


/* ==========================================================================
   17. HOME — CTA
   ========================================================================== */
.cta {
  padding-block: clamp(72px, 8vw, 112px);
  background: var(--c-bg-tint);
  border-top: 1px solid var(--c-line);
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px 48px;
}
.cta-title {
  font-size: clamp(28px, 3.4vw, 46px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: var(--c-navy-900);
}
.cta-ko { margin-top: 16px; font-size: 17px; color: var(--c-text); line-height: 1.7; }


/* ==========================================================================
   18. Footer
   ========================================================================== */
.site-footer {
  padding-top: clamp(64px, 7vw, 96px);
  padding-bottom: calc(32px + env(safe-area-inset-bottom, 0px));
  background: var(--c-navy-950);
  color: rgba(255, 255, 255, .72);
  font-size: 14px;
}
.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 48px;
  padding-bottom: 48px;
}
.footer-tagline { margin-top: 18px; font-size: 15px; color: rgba(255, 255, 255, .72); }

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px 48px;
}
.footer-nav li + li { margin-top: 6px; }
.footer-nav a {
  display: inline-block;
  padding-block: 6px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .1em;
  color: rgba(255, 255, 255, .85);
  transition: color var(--dur) var(--ease);
}
.footer-nav a:hover { color: #fff; text-decoration: underline; text-underline-offset: 6px; }

.footer-info {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 40px;
  padding-block: 28px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}
.footer-company { font-weight: 600; color: #fff; }
.footer-company span {
  margin-left: 10px;
  padding-left: 10px;
  border-left: 1px solid rgba(255, 255, 255, .2);
  font-weight: 400;
  color: rgba(255, 255, 255, .72);
}
.footer-contact { display: flex; flex-wrap: wrap; gap: 12px 32px; }
.footer-contact div { display: flex; align-items: center; gap: 10px; }
.footer-contact dt { font-size: 12px; font-weight: 700; letter-spacing: .1em; color: rgba(255, 255, 255, .5); }
.footer-contact dd { color: rgba(255, 255, 255, .85); }
.site-footer .tbc {
  color: #F3D9A4;
  background: rgba(243, 217, 164, .08);
  border-color: rgba(243, 217, 164, .35);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-top: 28px;
  padding-right: 64px;   /* 맨 위로 버튼과 겹치지 않도록 */
  font-size: 13px;
}
.footer-copy { color: rgba(255, 255, 255, .6); }
.footer-policy {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  font-weight: 600;
  color: rgba(255, 255, 255, .88);
}
.footer-policy:hover { color: #fff; text-decoration: underline; text-underline-offset: 4px; }


/* ==========================================================================
   19. Sub Page (공통 서브페이지 레이아웃)
   ========================================================================== */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + clamp(56px, 7vw, 104px)) 0 clamp(56px, 7vw, 96px);
  background: var(--c-bg-soft);
  border-bottom: 1px solid var(--c-line);
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 0 55%;
  background-image:
    linear-gradient(var(--c-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-line) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: .6;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 45%);
  mask-image: linear-gradient(90deg, transparent, #000 45%);
  pointer-events: none;
}
.page-hero .container { position: relative; }
.page-title {
  font-size: clamp(40px, 5.4vw, 72px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.04em;
  color: var(--c-navy-900);
}
.page-title-ko {
  margin-top: 16px;
  font-size: clamp(18px, 1.8vw, 22px);
  font-weight: 500;
  color: var(--c-navy-700);
}

.breadcrumb { margin-bottom: 28px; font-size: 13px; color: var(--c-muted); }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 8px; }
.breadcrumb li + li::before { content: "/"; margin-right: 8px; color: var(--c-line-strong); }
.breadcrumb a:hover { color: var(--c-blue-600); }

.page-body { padding-block: clamp(64px, 8vw, 112px); }
.notice-box {
  max-width: 760px;
  padding: clamp(32px, 4vw, 48px);
  background: #fff;
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-navy-900);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}
.notice-box h2 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--c-ink);
}
.notice-box p { margin-top: 12px; font-size: 16px; line-height: 1.8; }
.notice-box .btn { margin-top: 32px; }
.notice-tag {
  display: inline-block;
  margin-bottom: 16px;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--c-blue-600);
  background: var(--c-blue-50);
  border: 1px solid var(--c-blue-100);
  border-radius: 4px;
}
.contact-list { margin-top: 28px; border-top: 1px solid var(--c-navy-900); }
.contact-list div {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding-block: 16px;
  border-bottom: 1px solid var(--c-line);
}
.contact-list dt { font-size: 12px; font-weight: 700; letter-spacing: .12em; color: var(--c-muted); }
.contact-list dd { font-size: 15px; font-weight: 600; color: var(--c-ink); }
.nowrap { white-space: nowrap; }
@media (max-width: 560px) {
  .contact-list div { grid-template-columns: minmax(0, 1fr); gap: 4px; }
}


/* ==========================================================================
   20. Utilities — To Top, Reveal
   ========================================================================== */
.to-top {
  position: fixed;
  right: max(20px, env(safe-area-inset-right, 0px));
  bottom: max(20px, env(safe-area-inset-bottom, 0px));
  z-index: 80;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  font-size: 20px;
  color: var(--c-navy-900);
  background: #fff;
  border: 1px solid var(--c-line-strong);
  border-radius: 50%;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease),
              visibility var(--dur), background-color var(--dur), color var(--dur);
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--c-navy-900); color: #fff; border-color: var(--c-navy-900); }

/* Scroll Reveal — JS가 html.has-reveal 을 추가한 경우에만 동작
   (JS 로딩 실패 시에도 콘텐츠는 항상 보임) */
.has-reveal .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
  transition-delay: calc(var(--d, 0) * 90ms);
}
.has-reveal .reveal.is-visible { opacity: 1; transform: none; }


/* ==========================================================================
   21. Responsive
   ========================================================================== */

/* ---------- ≤ 1200px ---------- */
@media (max-width: 1200px) {
  .header-inner { gap: 28px; }
  .gnb-list { gap: 24px; }
  .gnb-list a { font-size: 13px; letter-spacing: .06em; }
  .feature-card { padding: 36px 24px 40px; }
  .feature-icon { right: 24px; }
  .milestone-card { padding: 32px 24px 28px; }
}

/* ---------- ≤ 1024px (Tablet) ---------- */
@media (max-width: 1024px) {
  :root { --header-h: 72px; }

  .gnb { display: none; }
  .header-util { margin-left: auto; }
  .menu-toggle { display: block; }
  .site-header.is-scrolled { height: var(--header-h); }

  .hero-inner { grid-template-columns: minmax(0, 1fr); }
  .hero-content { max-width: 720px; }
  .hero-visual { aspect-ratio: 16 / 10; }
  .hero::before { inset: 45% 0 0 0; }

  .about-grid { grid-template-columns: minmax(0, 1fr); }
  .about-media { max-width: none; justify-self: stretch; aspect-ratio: 16 / 10; }

  .ib100-grid { grid-template-columns: minmax(0, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

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

  .section-head--split { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .research-grid { gap: 16px; }
  .research-body { padding: 24px 22px 28px; }
  .research-title { font-size: 19px; }

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

  .news-grid { gap: 16px; }
  .news-card { padding: 28px 24px; }
  .news-title { font-size: 20px; }

  .footer-top { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .footer-nav { max-width: 480px; }
}

/* ---------- ≤ 860px ---------- */
@media (max-width: 860px) {
  .research-grid { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .research-card { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); }
  .research-card .media { aspect-ratio: auto; height: 100%; min-height: 200px; }
  .research-body { align-self: center; }

  .news-grid { grid-template-columns: minmax(0, 1fr); }
  .news-card { min-height: 0; }

  .mission-body { grid-template-columns: minmax(0, 1fr); }

  .cta-inner { flex-direction: column; align-items: flex-start; }
}

/* ---------- ≤ 768px (Mobile) ---------- */
@media (max-width: 768px) {
  :root { --header-h: 64px; }

  body { font-size: 15px; }
  .logo { font-size: 20px; }

  .hero { padding-top: calc(var(--header-h) + 40px); }
  .hero-desc { font-size: 16px; }
  .hero-visual { aspect-ratio: 4 / 3; }
  .hero-visual-card { left: 16px; right: 16px; bottom: 16px; padding: 12px 16px; }
  .hvc-v { font-size: 13px; }

  .prose p { font-size: 16px; }

  .keyword-grid { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .keyword-card {
    display: grid;
    grid-template-columns: 52px minmax(0, 1fr);
    column-gap: 20px;
    align-items: center;
    padding: 24px;
  }
  .keyword-icon { grid-row: span 2; }
  .keyword-title { margin-top: 0; font-size: 14px; }
  .keyword-desc { margin-top: 2px; font-size: 14px; }

  .spec-row { grid-template-columns: minmax(0, 1fr); gap: 6px; padding-block: 16px; }
  .spec-row dt { flex-direction: row; align-items: baseline; gap: 8px; }

  .section-head--row { flex-direction: column; align-items: flex-start; }

  .milestone-grid { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .milestone-cat { margin-top: 24px; }

  .mission-deco { right: -40%; width: 120vw; opacity: .1; }

  .footer-info { flex-direction: column; align-items: flex-start; }
  .footer-contact { flex-direction: column; gap: 10px; }
  .footer-company span { display: inline-block; }

  .br-md { display: inline; }
}

/* ---------- ≤ 560px ---------- */
@media (max-width: 560px) {
  .header-util > .lang { display: none; }  /* 모바일 메뉴 내 언어 선택 사용 */

  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .hero-keywords { font-size: 11px; letter-spacing: .08em; }
  .br-lg { display: none; }

  .feature-grid { grid-template-columns: minmax(0, 1fr); }
  .feature-card { padding: 28px 24px 32px; }
  .feature-title { margin-top: 32px; }
  .feature-icon { top: 26px; }

  .concept-step { grid-template-columns: 40px minmax(0, 1fr); gap: 14px; padding: 16px; }
  .concept-num { width: 40px; height: 40px; font-size: 13px; }
  .concept-step + .concept-step::before { left: 35px; }
  .concept-step + .concept-step::after { left: 32px; }
  .concept-en { font-size: 15px; }
  .concept-ko { font-size: 13px; }

  .research-card { display: flex; }
  .research-card .media { aspect-ratio: 4 / 3; height: auto; min-height: 0; }
  .research-body { align-self: stretch; }

  .approach-step { padding-right: 10px; }
  .approach-en { font-size: 13px; }
  .approach-ko { font-size: 12px; }

  .slot-label { left: 8px; bottom: 8px; max-width: calc(100% - 16px); font-size: 10px; }

  .eyebrow { font-size: 12px; letter-spacing: .12em; gap: 10px; }
  .eyebrow::before { width: 20px; }

  .ib100-text .btn,
  .cta .btn { width: 100%; }

  .footer-nav { gap: 16px 24px; }
  .footer-company span { display: block; margin: 6px 0 0; padding: 0; border: 0; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }

  .br-sm { display: inline; }
}

/* ---------- ≥ 1025px: 모바일 메뉴 강제 숨김 ---------- */
@media (min-width: 1025px) {
  .mobile-nav { display: none !important; }
}


/* ==========================================================================
   22. Reduced Motion / Print
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    transition-delay: 0s !important;
  }
  .has-reveal .reveal { opacity: 1; transform: none; }
}

@media print {
  .site-header, .mobile-nav, .to-top, .skip-link { display: none !important; }
  .hero { padding-top: 24px; }
  .has-reveal .reveal { opacity: 1 !important; transform: none !important; }
  .mission, .site-footer { background: #fff !important; color: #000 !important; }
  .mission-title, .mission-lead, .mission-body p { color: #000 !important; }
}


/* ==========================================================================
   23. Sub Page Components — ABOUT / IB-100 (및 향후 서브페이지 공용)
   --------------------------------------------------------------------------
   23-1. Sub Hero          23-6. Timeline
   23-2. Overview/Metric   23-7. Data Table / Info Box
   23-3. Vision & Mission  23-8. Species Cards
   23-4. Competence        23-9. CTA variants / Light buttons
   23-5. Process Flow      23-10. Responsive
   ========================================================================== */

/* ---------- 23-1. Sub Hero (HOME .hero 재사용 + 변형) ---------- */
.hero--sub .breadcrumb { margin-bottom: 28px; }
.hero--sub .hero-title-en {
  font-size: clamp(36px, 4.4vw, 60px);
  line-height: 1.1;
}
.hero--sub .hero-title-ko { font-size: clamp(20px, 2vw, 28px); }
.hero-desc + .hero-desc { margin-top: 14px; }

.hero-product-name {
  display: block;
  font-size: clamp(72px, 9vw, 128px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.045em;
  color: var(--c-navy-900);
}
.hero-product-sub {
  display: block;
  margin-top: 18px;
  font-size: clamp(18px, 1.8vw, 24px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--c-blue-600);
}

/* ---------- 23-2. Company Overview / Metric ---------- */
.overview-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: clamp(40px, 7vw, 112px);
  align-items: start;
}
.overview-grid .prose p.prose-emphasis {
  font-size: 19px;
  font-weight: 600;
  color: var(--c-navy-900);
}
.metric-list { border-top: 2px solid var(--c-navy-900); }
.metric-card {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 20px;
  align-items: baseline;
  padding-block: 32px;
  border-bottom: 1px solid var(--c-line);
}
.metric-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--c-blue-600);
}
.metric-en {
  font-size: clamp(28px, 3.2vw, 44px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--c-navy-900);
}
.metric-ko { margin-top: 8px; font-size: 15px; color: var(--c-muted); }

/* ---------- 23-3. Vision & Mission ---------- */
.vm-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.vm-item {
  padding: clamp(32px, 4vw, 52px);
  background: #fff;
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-navy-900);
}
.vm-item--dark { background: var(--c-navy-900); border-color: var(--c-navy-900); }
.vm-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--c-blue-600);
}
.vm-item--dark .vm-label { color: #8FD3EA; }
.vm-statement {
  margin-top: 20px;
  font-size: clamp(19px, 1.9vw, 25px);
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: -0.02em;
  color: var(--c-ink);
}
.vm-item--dark .vm-statement { color: #fff; }

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px clamp(24px, 4vw, 56px);
  margin-top: clamp(48px, 6vw, 72px);
}
.value-item { padding-top: 24px; border-top: 1px solid var(--c-line-strong); }
.value-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--c-blue-600);
}
.value-en {
  margin-top: 14px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--c-ink);
}
.value-ko { margin-top: 6px; font-size: 15px; color: var(--c-muted); }

/* ---------- 23-4. Core Competence ---------- */
.scale-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--c-muted);
}
.scale-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--c-line-strong), var(--c-blue-600));
  position: relative;
}
.scale-line::after {
  content: "";
  position: absolute;
  right: 0;
  top: -3px;
  width: 7px;
  height: 7px;
  border-top: 1px solid var(--c-blue-600);
  border-right: 1px solid var(--c-blue-600);
  transform: rotate(45deg);
}

.competence-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.competence-card {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 24px;
  padding: clamp(28px, 3vw, 40px);
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  transition: border-color var(--dur) var(--ease);
}
.competence-card:hover { border-color: var(--c-line-strong); }
.competence-icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  font-size: 26px;
  color: var(--c-blue-600);
  background: var(--c-blue-50);
  border-radius: 50%;
}
.competence-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--c-blue-600);
}
.competence-title {
  margin-top: 6px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--c-ink);
}
.competence-desc { margin-top: 8px; font-size: 15px; line-height: 1.7; color: var(--c-muted); }

/* ---------- 23-5. Process Flow (가로 단계 흐름) ----------
   단계 수는 style="--steps:5" 로 지정 */
.flow {
  display: grid;
  grid-template-columns: repeat(var(--steps, 4), minmax(0, 1fr));
  margin-top: clamp(40px, 5vw, 64px);
}
.flow-step { position: relative; padding-right: 20px; }
.flow-step:not(:last-child)::before {
  content: "";
  position: absolute;
  top: 24px;
  left: 60px;
  right: 22px;
  height: 1px;
  background: var(--c-line-strong);
}
.flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 20px;
  right: 22px;
  width: 8px;
  height: 8px;
  border-top: 1.5px solid var(--c-blue-600);
  border-right: 1.5px solid var(--c-blue-600);
  transform: rotate(45deg);
}
.flow-num {
  position: relative;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--c-navy-900);
  background: #fff;
  border: 1px solid var(--c-line-strong);
  border-radius: 50%;
}
.flow-body { margin-top: 20px; }
.flow-en {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--c-ink);
}
.flow-ko { margin-top: 4px; font-size: 14px; line-height: 1.6; color: var(--c-muted); }
.flow-step--key .flow-num { color: #fff; background: var(--c-navy-900); border-color: var(--c-navy-900); }

.flow--dark .flow-num { color: #fff; background: transparent; border-color: rgba(255, 255, 255, .35); }
.flow--dark .flow-step:not(:last-child)::before { background: rgba(255, 255, 255, .2); }
.flow--dark .flow-step:not(:last-child)::after { border-color: #8FD3EA; }
.flow--dark .flow-en { color: #fff; }
.flow--dark .flow-ko { color: rgba(255, 255, 255, .7); }
.flow--dark .flow-step--key .flow-num { color: var(--c-navy-900); background: #fff; border-color: #fff; }

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

.flow-loop {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, .14);
  font-size: 14px;
  color: rgba(255, 255, 255, .72);
}
.flow-loop .icon { font-size: 20px; color: #8FD3EA; }

/* ---------- 23-6. Timeline ---------- */
.timeline-wrap {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  gap: clamp(40px, 7vw, 112px);
  align-items: start;
}
.timeline-head { position: sticky; top: calc(var(--header-h) + 32px); }
.timeline { position: relative; margin-left: 6px; border-left: 1px solid var(--c-line-strong); }
.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 24px;
  padding: 0 0 40px 36px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 7px;
  width: 13px;
  height: 13px;
  background: #fff;
  border: 2px solid var(--c-blue-600);
  border-radius: 50%;
}
.timeline-item--dated::before { background: var(--c-blue-600); }
.timeline-year {
  font-size: 24px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--c-navy-900);
}
.timeline-year .tbc { vertical-align: middle; }
.timeline-text {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--c-ink);
}
.timeline-sub { margin-top: 6px; font-size: 14px; line-height: 1.6; color: var(--c-muted); }

/* ---------- 23-7. Data Table / Info Box ---------- */
.product-overview {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  gap: clamp(40px, 7vw, 112px);
  align-items: start;
}
.data-table { border-top: 2px solid var(--c-navy-900); }
.data-row {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 24px;
  align-items: baseline;
  padding-block: 20px;
  border-bottom: 1px solid var(--c-line);
}
.data-row dt { display: flex; flex-direction: column; gap: 2px; }
.data-row dd {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--c-ink);
}
.data-row dd small {
  display: block;
  margin-top: 4px;
  font-size: 14px;
  font-weight: 400;
  color: var(--c-muted);
}

.info-box {
  margin-top: 40px;
  padding: 24px 28px;
  background: var(--c-bg-soft);
  border-left: 3px solid var(--c-navy-900);
}
.info-box-title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--c-navy-900);
}
.info-box-title span { margin-left: 8px; font-weight: 500; letter-spacing: 0; color: var(--c-muted); }
.info-box p { margin-top: 10px; font-size: 15px; line-height: 1.75; color: var(--c-text); }

/* ---------- 23-8. Species Cards ---------- */
.species-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}
.species-card {
  display: flex;
  flex-direction: column;
  min-height: 210px;
  padding: 32px 28px 28px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-navy-900);
}
.species-card--pending { background: var(--c-bg-soft); border-top-color: var(--c-line-strong); }
.species-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--c-blue-600);
}
.species-en {
  margin-top: 24px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--c-navy-900);
}
.species-ko { margin-top: 4px; font-size: 15px; color: var(--c-muted); }
.species-status { margin-top: auto; padding-top: 24px; }

/* ---------- 23-9. CTA variants / Light buttons ---------- */
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; flex-shrink: 0; }

.cta--dark { background: var(--c-navy-900); border-top: 0; }
.cta--dark .cta-title { color: #fff; }
.cta--dark .cta-ko { color: rgba(255, 255, 255, .78); }
.cta--dark + .site-footer { border-top: 1px solid rgba(255, 255, 255, .08); }

.btn-light { background: #fff; color: var(--c-navy-900); }
.btn-light:hover { background: var(--c-blue-100); }
.btn-outline-light { color: #fff; border-color: rgba(255, 255, 255, .4); }
.btn-outline-light:hover { background: #fff; color: var(--c-navy-900); border-color: #fff; }

/* ---------- 23-10. Responsive ---------- */
@media (max-width: 1024px) {
  .overview-grid,
  .timeline-wrap,
  .product-overview { grid-template-columns: minmax(0, 1fr); }
  .timeline-head { position: static; }
  .species-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
  .flow-step { padding-right: 12px; }
  .flow-step:not(:last-child)::before { left: 56px; right: 14px; }
  .flow-step:not(:last-child)::after { right: 14px; }
  .flow-en { font-size: 15px; }
}

@media (max-width: 860px) {
  .mission-body--two { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 768px) {
  .vm-grid,
  .value-grid,
  .competence-grid { grid-template-columns: minmax(0, 1fr); }
  .value-grid { gap: 24px; }

  /* Process Flow → 세로 */
  .flow { grid-template-columns: minmax(0, 1fr); }
  .flow-step {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 16px;
    padding: 0 0 28px;
  }
  .flow-step:last-child { padding-bottom: 0; }
  .flow-step:not(:last-child)::before {
    top: 52px;
    bottom: 4px;
    left: 23px;
    right: auto;
    width: 1px;
    height: auto;
  }
  .flow-step:not(:last-child)::after { display: none; }
  .flow-body { margin-top: 0; padding-top: 11px; }
  .flow-en { font-size: 16px; }

  .timeline-item { grid-template-columns: minmax(0, 1fr); gap: 6px; padding-left: 28px; }
  .timeline-year { font-size: 20px; }

  .data-row { grid-template-columns: minmax(0, 1fr); gap: 6px; padding-block: 16px; }
  .data-row dt { flex-direction: row; align-items: baseline; gap: 8px; }

  .metric-card { padding-block: 24px; }
  .competence-card { grid-template-columns: 48px minmax(0, 1fr); gap: 18px; }
  .competence-icon { width: 48px; height: 48px; font-size: 22px; }

  .cta--dark .cta-inner,
  .cta-inner { align-items: flex-start; }
}

@media (max-width: 560px) {
  .species-grid { grid-template-columns: minmax(0, 1fr); }
  .species-card { min-height: 0; }
  .cta-actions { flex-direction: column; align-items: stretch; width: 100%; }
  .cta-actions .btn { width: 100%; }
  .info-box { padding: 20px; }
}


/* ==========================================================================
   24. TECHNOLOGY / FIELD DATA Components
   --------------------------------------------------------------------------
   24-1. Evidence Badges         24-6. Chart Frame (차트 입력 영역)
   24-2. Concept Pair (Zn + Asp) 24-7. Observation / Field Note
   24-3. Indicator Cards         24-8. Study Index (Hero)
   24-4. Immune Window Visual    24-9. Scientific Note
   24-5. Study Block / Panel     24-10. Responsive
   ========================================================================== */

/* ---------- 24-1. Evidence Badges ----------
   논문 게재가 확인된 자료에만 ev-badge--published 사용 */
.ev-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: .12em;
  text-transform: uppercase;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: 4px;
}
.ev-badge--controlled    { color: #fff; background: var(--c-navy-900); border-color: var(--c-navy-900); }
.ev-badge--field         { color: var(--c-navy-900); background: #fff; border-color: var(--c-navy-900); }
.ev-badge--observational { color: var(--c-blue-600); background: var(--c-blue-50); border-color: var(--c-blue-100); }
.ev-badge--preliminary   { color: var(--c-muted); background: var(--c-bg-soft); border: 1px dashed var(--c-line-strong); }
.ev-badge--published     { color: var(--c-navy-900); background: var(--c-cyan-100); border-color: #B5E3F0; }
.badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }

/* ---------- 24-2. Concept Pair (Zinc + Aspartate) ---------- */
.concept-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 12px;
}
.concept-atom {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}
.concept-atom-symbol {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  font-size: 14px;
  font-weight: 800;
  color: #fff;
  background: var(--c-navy-900);
  border-radius: 50%;
}
.concept-atom--asp .concept-atom-symbol { color: var(--c-navy-900); background: #fff; border: 1.5px solid var(--c-blue-600); }
.concept-plus { font-size: 22px; font-weight: 300; color: var(--c-blue-600); }
.concept-pair + .concept-flow { margin-top: 36px; position: relative; }
.concept-pair + .concept-flow::before {
  content: "";
  position: absolute;
  left: 47px;
  top: -33px;
  width: 2px;
  height: 26px;
  background: repeating-linear-gradient(to bottom, var(--c-line-strong) 0 4px, transparent 4px 8px);
}
.concept-pair + .concept-flow::after {
  content: "";
  position: absolute;
  left: 44px;
  top: -12px;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--c-blue-600);
  border-bottom: 2px solid var(--c-blue-600);
  transform: rotate(45deg);
}

/* ---------- 24-3. Indicator Cards ---------- */
.indicator-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(48px, 6vw, 72px);
  background: var(--c-line);
  border: 1px solid var(--c-line);
}
.indicator-card {
  display: flex;
  flex-direction: column;
  padding: 32px 28px;
  background: #fff;
}
.indicator-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--c-blue-600);
}
.indicator-en {
  margin-top: 28px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--c-ink);
}
.indicator-ko { margin-top: 4px; font-size: 14px; color: var(--c-muted); }
.indicator-status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding-top: 24px;
  font-size: 12px;
  color: var(--c-muted);
}
.indicator-status::before {
  content: "";
  width: 7px;
  height: 7px;
  border: 1.5px solid var(--c-line-strong);
  border-radius: 50%;
}
.indicator-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin-top: 16px;
  font-size: 13px;
  color: var(--c-muted);
}

/* ---------- 24-4. Immune Window Visual (Dark section) ---------- */
.window-visual { margin-top: clamp(48px, 6vw, 72px); }
.window-track {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr) minmax(0, 1fr);
}
.window-seg { position: relative; padding: 36px 20px 0 0; }
.window-seg::before {
  content: "";
  position: absolute;
  top: 7px;
  left: 0;
  right: 0;
  height: 4px;
  background: rgba(255, 255, 255, .18);
}
.window-seg::after {
  content: "";
  position: absolute;
  top: 1px;
  left: 0;
  width: 16px;
  height: 16px;
  background: var(--c-navy-900);
  border: 2px solid #fff;
  border-radius: 50%;
}
.window-seg--focus::before {
  background: repeating-linear-gradient(90deg, #38BDE0 0 12px, rgba(56, 189, 224, .25) 12px 18px);
}
.window-seg--focus::after { border-color: #38BDE0; }
.window-seg--end::before { background: rgba(255, 255, 255, .55); }
.window-en { font-size: 17px; font-weight: 700; line-height: 1.35; color: #fff; }
.window-ko { margin-top: 4px; font-size: 14px; color: rgba(255, 255, 255, .7); }
.window-label {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px 8px;
  margin-top: 18px;
  padding: 6px 14px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  color: #8FD3EA;
  border: 1px dashed rgba(56, 189, 224, .6);
  border-radius: 999px;
}

/* ---------- 24-5. Study Block / Panel ---------- */
.study { padding-block: var(--section-y); border-top: 1px solid var(--c-line); }
.study.bg-soft { border-top: 0; }
.study-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px clamp(32px, 6vw, 96px);
  align-items: end;
  margin-bottom: clamp(40px, 5vw, 56px);
}
.study-head .prose { margin-top: 0; }
.study-grid {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
  gap: 24px;
  align-items: start;
}
.panel { background: #fff; border: 1px solid var(--c-line); }
.panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 12px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--c-line);
}
.panel-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--c-navy-900);
}
.panel-sub { font-size: 12px; color: var(--c-muted); }
.panel-body { padding: 8px 24px 24px; }
.panel + .panel { margin-top: 24px; }

.data-table--compact { border-top: 0; }
.data-table--compact .data-row {
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 16px;
  padding-block: 14px;
}
.data-table--compact .data-row:last-child { border-bottom: 0; }
.data-table--compact .data-row dd { font-size: 15px; }

.chip-list { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-block;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-navy-900);
  background: #fff;
  border: 1px solid var(--c-line-strong);
  border-radius: 999px;
}

/* ---------- 24-6. Chart Frame (차트 입력 영역) ----------
   공식 자료 확정 후: .chart-empty 를 삭제하고 차트 이미지(SVG/PNG)를
   <img class="chart-img" ...> 로 넣거나, 데이터 표로 대체 */
.chart {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 0 10px;
  padding-top: 16px;
}
.chart-y {
  grid-row: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--c-muted);
  white-space: nowrap;
}
.chart-area {
  position: relative;
  grid-row: 1;
  aspect-ratio: 16 / 9;
  min-height: 180px;
  border-left: 1px solid var(--c-line-strong);
  border-bottom: 1px solid var(--c-line-strong);
  background-image: repeating-linear-gradient(to top, transparent 0 calc(20% - 1px), var(--c-line) calc(20% - 1px) 20%);
}
.chart-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.chart-x {
  grid-column: 2;
  padding-top: 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  text-align: center;
  color: var(--c-muted);
}
.chart-ticks {
  display: flex;
  justify-content: space-between;
  grid-column: 2;
  padding-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-muted);
}
.chart-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  text-align: center;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-muted);
}
.chart-empty strong {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--c-navy-700);
}

/* ---------- 24-7. Observation / Field Note ---------- */
.observation {
  margin-top: 24px;
  padding: 20px 24px;
  background: var(--c-blue-50);
  border-left: 3px solid var(--c-blue-600);
}
.observation-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--c-blue-600);
}
.observation-text {
  margin-top: 8px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--c-ink);
}
.observation-sub { margin-top: 6px; font-size: 13.5px; line-height: 1.7; color: var(--c-muted); }

.field-note {
  margin-top: 16px;
  padding: 16px 20px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-text);
  background: #fff;
  border: 1px dashed var(--c-line-strong);
}
.field-note p + p { margin-top: 8px; }
.field-note [lang="en"] { font-style: italic; color: var(--c-muted); }

/* ---------- 24-8. Study Index (Field Data Hero) ---------- */
.study-index {
  position: relative;
  background: #fff;
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-navy-900);
  box-shadow: var(--shadow);
}
.study-index-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--c-line);
}
.study-index-row a {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) 20px;
  gap: 12px;
  align-items: center;
  padding: 18px 24px;
  border-bottom: 1px solid var(--c-line);
  transition: background-color var(--dur) var(--ease);
}
.study-index-row:last-child a { border-bottom: 0; }
.study-index-row a:hover { background: var(--c-bg-soft); }
.study-index-row .icon { font-size: 18px; color: var(--c-navy-900); transition: transform var(--dur) var(--ease); }
.study-index-row a:hover .icon { transform: translateX(3px); color: var(--c-blue-600); }
.si-num { font-family: var(--font-mono); font-size: 12px; font-weight: 600; color: var(--c-blue-600); }
.si-species { font-size: 11px; font-weight: 700; letter-spacing: .14em; color: var(--c-muted); }
.si-title { display: block; margin-top: 2px; font-size: 15px; font-weight: 700; line-height: 1.4; color: var(--c-ink); }
.si-badges { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.si-badges .ev-badge { padding: 2px 7px; font-size: 9.5px; }

/* ---------- 24-9. Scientific Note ---------- */
.sci-note {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 20px;
  max-width: 920px;
  padding: 28px 32px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-navy-900);
}
.sci-note-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 20px;
  font-style: italic;
  font-weight: 700;
  color: var(--c-navy-900);
  border: 1.5px solid var(--c-navy-900);
  border-radius: 50%;
}
.sci-note-label { font-size: 11px; font-weight: 700; letter-spacing: .16em; color: var(--c-navy-900); }
.sci-note p { margin-top: 8px; font-size: 14.5px; line-height: 1.85; color: var(--c-text); }

/* Evidence approach / legend cards */
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.evidence-card {
  padding: 32px 28px;
  background: #fff;
  border: 1px solid var(--c-line);
}
.evidence-en {
  margin-top: 24px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--c-ink);
}
.evidence-ko { margin-top: 6px; font-size: 15px; line-height: 1.7; color: var(--c-muted); }

.legend-list { border-top: 2px solid var(--c-navy-900); }
.legend-row {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  padding-block: 20px;
  border-bottom: 1px solid var(--c-line);
}
.legend-row dd { font-size: 16px; font-weight: 600; color: var(--c-ink); }
.legend-row dd small { display: block; margin-top: 2px; font-size: 13.5px; font-weight: 400; color: var(--c-muted); }

/* ---------- 24-10. Responsive ---------- */
@media (max-width: 1024px) {
  .indicator-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .study-head,
  .study-grid { grid-template-columns: minmax(0, 1fr); }
  .evidence-grid { gap: 16px; }
  .evidence-card { padding: 28px 22px; }
}

@media (max-width: 768px) {
  .evidence-grid { grid-template-columns: minmax(0, 1fr); }
  .window-track { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .window-seg { padding-right: 0; }
  .legend-row { grid-template-columns: minmax(0, 1fr); gap: 8px; padding-block: 16px; }
  .data-table--compact .data-row { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .panel-head, .panel-body { padding-inline: 18px; }
  .sci-note { grid-template-columns: minmax(0, 1fr); gap: 12px; padding: 24px 20px; }
}

@media (max-width: 560px) {
  .indicator-grid { grid-template-columns: minmax(0, 1fr); }
  .indicator-en { margin-top: 16px; }
  .concept-pair { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .concept-plus { text-align: center; line-height: 1; }
  .concept-pair + .concept-flow::before { left: 35px; }
  .concept-pair + .concept-flow::after { left: 32px; }
  .chart-area { aspect-ratio: 4 / 3; }
  .study-index-row a { padding: 16px 18px; grid-template-columns: 26px minmax(0, 1fr) 18px; }
}


/* ==========================================================================
   25. STORYLINE Visuals — Labile Zinc · Evidence · Immunity Management
   --------------------------------------------------------------------------
   25-1. Hero Diagram               25-7.  Cellular Zinc Uptake Diagram
   25-2. Key Message                25-8.  Evidence Summary Cards
   25-3. Vaccination Timeline (vx)  25-9.  Bar Compare / Paper Card / Results
   25-4. Two-Stage Diagram          25-10. Credentials (Emblem · Certificate · Patent)
   25-5. Zinc Comparison            25-11. Biosecurity Paradigm
   25-6. Dynamic Coordination       25-12. Responsive
   ========================================================================== */

/* ---------- 25-1. Hero Diagram (inline SVG, 텍스트는 사이트 폰트 사용) ---------- */
.hero-visual--diagram { background: #fff; }
.hero-visual.hero-visual--diagram { aspect-ratio: 1 / 1; max-width: 560px; width: 100%; justify-self: center; }
.hero-visual--diagram svg { display: block; width: 100%; height: 100%; }
.hv-chip { fill: var(--c-navy-900); }
.hv-chip-text { fill: #fff; font-size: 12.5px; font-weight: 700; letter-spacing: .16em; }
.hv-num { fill: var(--c-blue-600); font-family: var(--font-mono); font-size: 11px; font-weight: 600; }
.hv-label { fill: var(--c-navy-900); font-size: 15px; font-weight: 700; letter-spacing: -0.01em; }
.hv-small { fill: var(--c-navy-700); font-size: 10px; font-weight: 700; }
.hv-caption { fill: var(--c-muted); font-size: 12.5px; }

.product-media--photo { aspect-ratio: 16 / 10; background: #fff; }
.product-media--photo img { object-fit: contain; padding: 12px; }
.hero-visual--product img { object-fit: contain; padding: 24px; background: #fff; }
.prose p.prose-emphasis { font-size: 19px; font-weight: 600; color: var(--c-navy-900); }
.section-head .keymsg-ko { margin-top: 14px; }

/* ---------- 25-2. Key Message ---------- */
.keymsg-en {
  font-size: clamp(30px, 4.2vw, 56px);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -0.035em;
  color: var(--c-navy-900);
}
.keymsg-en em { font-style: normal; color: var(--c-blue-600); }
.keymsg-ko {
  margin-top: 18px;
  font-size: clamp(18px, 1.8vw, 23px);
  font-weight: 500;
  line-height: 1.6;
  color: var(--c-navy-700);
}
.keymsg-sub {
  margin-top: 32px;
  padding: 20px 24px;
  background: #fff;
  border-left: 3px solid var(--c-blue-600);
  max-width: 760px;
}
.keymsg-sub p { font-size: 17px; font-weight: 600; line-height: 1.6; color: var(--c-ink); }
.keymsg-sub p + p { margin-top: 4px; font-size: 15px; font-weight: 400; color: var(--c-muted); }

/* ---------- 25-3. Vaccination Timeline (vx) ----------
   위치 계산: 주령(week) 5~17 범위 → left = (week - 5) / 12
   사용: style="--at:8"  /  style="--from:8; --to:16" */
.vx {
  margin-top: clamp(40px, 5vw, 56px);
  background: #fff;
  border: 1px solid var(--c-line);
}
.vx-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.vx-body { min-width: 640px; padding: 12px 28px 24px; }
.vx-row {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  border-bottom: 1px dashed var(--c-line);
}
.vx-label { font-size: 14px; font-weight: 700; color: var(--c-ink); line-height: 1.4; }
.vx-label span { display: block; font-size: 12px; font-weight: 400; color: var(--c-muted); }
.vx-track { position: relative; height: 112px; }
.vx-track::before {
  content: "";
  position: absolute;
  left: 0; right: 0;
  top: 51px;
  height: 2px;
  background: var(--c-line-strong);
}
.vx-window,
.vx-bar {
  position: absolute;
  top: 40px;
  height: 24px;
  left: calc((var(--from) - var(--vx-min, 5)) * 100% / var(--vx-span, 12));
  width: calc((var(--to) - var(--from)) * 100% / var(--vx-span, 12));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
  white-space: nowrap;
  overflow: hidden;
}
.vx-window {
  color: var(--c-navy-700);
  background: repeating-linear-gradient(135deg, var(--c-cyan-100) 0 8px, #fff 8px 14px);
  border: 1px dashed #7CCFE6;
}
.vx-bar { justify-content: flex-start; padding-left: 10px; color: #fff; background: var(--c-navy-900); }
.vx-flag--neutral { color: var(--c-navy-700); background: #fff; border: 1px dashed #7CCFE6; }
.vx-mark {
  position: absolute;
  top: 45px;
  left: calc((var(--at) - var(--vx-min, 5)) * 100% / var(--vx-span, 12));
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 130px;
  text-align: center;
}
.vx-mark::before {
  content: "";
  width: 14px;
  height: 14px;
  background: #fff;
  border: 3px solid var(--c-blue-600);
  border-radius: 50%;
}
.vx-mark b { margin-top: 12px; font-size: 12px; font-weight: 700; line-height: 1.3; color: var(--c-ink); }
.vx-mark small { font-size: 11px; color: var(--c-muted); }
.vx-mark--end::before { background: var(--c-blue-600); }
.vx-flag {
  position: absolute;
  top: 6px;
  left: calc((var(--at) - var(--vx-min, 5)) * 100% / var(--vx-span, 12));
  transform: translateX(-50%);
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 700;
  color: var(--c-blue-600);
  background: var(--c-blue-50);
  border: 1px solid var(--c-blue-100);
  border-radius: 999px;
  white-space: nowrap;
}
.vx-axis { position: relative; height: 28px; margin-left: 166px; }
.vx-axis span {
  position: absolute;
  top: 8px;
  left: calc((var(--at) - var(--vx-min, 5)) * 100% / var(--vx-span, 12));
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-muted);
}
.vx-foot {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--c-line);
  border-top: 1px solid var(--c-line);
}
.vx-foot > div { padding: 18px 28px; background: var(--c-bg-soft); }
.vx-foot-label { font-size: 11px; font-weight: 700; letter-spacing: .14em; color: var(--c-navy-900); }
.vx-foot p:not(.vx-foot-label) { margin-top: 6px; font-size: 14px; line-height: 1.7; color: var(--c-text); }
.vx-hint { display: none; padding: 10px 20px 0; font-size: 12px; color: var(--c-muted); }

/* ---------- 25-4. Two-Stage Zinc Utilization Diagram ---------- */
.stages {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 104px minmax(0, 1.2fr) minmax(0, .85fr);
  margin-top: clamp(40px, 5vw, 64px);
  background: #fff;
  border: 1px solid var(--c-line);
}
.stage { padding: 32px 28px 36px; }
.stage--1 { background: var(--c-bg-soft); }
.stage--2 { border-right: 1px solid var(--c-line); }
.stage-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--c-blue-600);
}
.stage-title {
  margin-top: 10px;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--c-ink);
}
.stage-ko { margin-top: 2px; font-size: 14px; color: var(--c-muted); }
.stage-steps { display: flex; flex-direction: column; gap: 26px; margin-top: 28px; }
.stage-step {
  position: relative;
  padding: 11px 16px;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--c-ink);
  background: #fff;
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-sm);
}
.stage-step + .stage-step::before {
  content: "";
  position: absolute;
  left: 22px;
  top: -24px;
  width: 1px;
  height: 18px;
  background: var(--c-line-strong);
}
.stage-step + .stage-step::after {
  content: "";
  position: absolute;
  left: 19px;
  top: -10px;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--c-blue-600);
  border-bottom: 1.5px solid var(--c-blue-600);
  transform: rotate(45deg);
}
.stage-step--soft { color: var(--c-navy-700); background: var(--c-blue-50); border-color: var(--c-blue-100); }
.stage-step--labile { color: var(--c-navy-900); background: var(--c-cyan-100); border-color: #8ED3E8; }
.stage-step--key { color: #fff; background: var(--c-navy-900); border-color: var(--c-navy-900); }
.stage-step small { display: block; font-size: 12px; font-weight: 400; color: inherit; opacity: .75; }

.stage-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 24px 10px;
  color: #fff;
  background: var(--c-navy-900);
  text-align: center;
}
.stage-divider-text {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .18em;
  line-height: 1.5;
}
.stage-divider .icon { font-size: 28px; color: #8FD3EA; stroke-width: 2; }

.stage-outcome { padding: 32px 24px 36px; background: var(--c-blue-50); }
.stage-outcome .stage-title { font-size: 17px; }
.outcome-list { display: flex; flex-direction: column; gap: 10px; margin-top: 24px; }
.outcome-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--c-navy-900);
  background: #fff;
  border: 1px solid var(--c-blue-100);
  border-radius: var(--radius-sm);
}
.outcome-list li::before {
  content: "";
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  background: var(--c-blue-600);
  border-radius: 50%;
}
.stage-outcome-note { margin-top: 16px; font-size: 12.5px; line-height: 1.6; color: var(--c-muted); }

.stages-foot {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px 32px;
  align-items: center;
  margin-top: 24px;
  padding: 20px 28px;
  background: var(--c-navy-900);
  color: #fff;
}
.stages-brand { font-size: 12px; font-weight: 700; letter-spacing: .18em; line-height: 1.5; }
.stages-brand span { display: block; color: #8FD3EA; }
.stages-caption p { font-size: 15px; font-weight: 600; line-height: 1.6; }
.stages-caption p + p { font-size: 14px; font-weight: 400; color: rgba(255, 255, 255, .75); }

/* ---------- 25-5. Zinc Comparison ---------- */
.zc-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: clamp(40px, 5vw, 56px);
}
.zc-card {
  display: flex;
  flex-direction: column;
  padding: 32px 28px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-line-strong);
}
.zc-card--ib { border-color: var(--c-navy-900); border-top: 4px solid var(--c-navy-900); box-shadow: var(--shadow); }
.zc-type { font-size: 13px; font-weight: 700; letter-spacing: .12em; color: var(--c-navy-900); }
.zc-type-ko { margin-top: 4px; font-size: 14px; color: var(--c-muted); }
.zc-card--ib .zc-type-ko { color: var(--c-blue-600); font-weight: 600; }
.zc-rows { margin-top: 24px; border-top: 1px solid var(--c-line); }
.zc-rows > div {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px 12px;
  padding-block: 16px;
  border-bottom: 1px solid var(--c-line);
}
.zc-rows dt { font-size: 14px; font-weight: 600; color: var(--c-ink); line-height: 1.4; }
.zc-rows dt span { display: block; font-size: 11.5px; font-weight: 400; color: var(--c-muted); }
.zc-rows dd { text-align: right; }
.lvl {
  display: inline-block;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
  border-radius: 999px;
}
.lvl--limited  { color: var(--c-muted); background: var(--c-bg-soft); border: 1px solid var(--c-line); }
.lvl--improved { color: var(--c-blue-600); background: var(--c-blue-50); border: 1px solid var(--c-blue-100); }
.lvl--variable { color: var(--c-navy-700); background: #fff; border: 1px dashed var(--c-line-strong); }
.lvl--design   { color: #fff; background: var(--c-navy-900); border: 1px solid var(--c-navy-900); }
.lvl--focus    { color: var(--c-navy-900); background: var(--c-cyan-100); border: 1px solid #8ED3E8; }
.lvl--na       { color: var(--c-muted); padding-inline: 4px; }

/* ---------- 25-6. Dynamic Coordination ---------- */
.dyn {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  margin-top: clamp(40px, 5vw, 64px);
  padding-bottom: 56px;
}
.dyn::after {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 22px;
  height: 2px;
  background: linear-gradient(90deg, var(--c-navy-900), var(--c-blue-600) 50%, #38BDE0);
}
.dyn::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  border-left: 14px solid transparent;
  border-right: 14px solid transparent;
  border-bottom: 22px solid var(--c-navy-900);
}
.dyn-side {
  padding: 28px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-navy-900);
}
.dyn-side--right { border-top-color: #38BDE0; }
.dyn-kicker { font-size: 11px; font-weight: 700; letter-spacing: .16em; color: var(--c-blue-600); }
.dyn-en {
  margin-top: 12px;
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--c-navy-900);
}
.dyn-ko { margin-top: 10px; font-size: 14.5px; line-height: 1.65; color: var(--c-muted); }
.dyn-core { text-align: center; }
.dyn-core svg { width: 100%; max-width: 300px; margin: 0 auto; }
.dyn-core-title {
  margin-top: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--c-navy-900);
}
.dyn-core-ko { margin-top: 2px; font-size: 14px; color: var(--c-muted); }

/* ---------- 25-7. Cellular Zinc Uptake Diagram ---------- */
.cell-dia {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: clamp(40px, 5vw, 56px);
  background: #fff;
  border: 1px solid var(--c-line);
}
.cd-zone { position: relative; display: flex; flex-direction: column; padding: 24px 22px 28px; }
.cd-zone + .cd-zone { border-left: 1px solid var(--c-line); }
.cd-zone:not(:last-child)::after {
  content: "";
  position: absolute;
  z-index: 1;
  right: -9px;
  top: 118px;
  width: 16px;
  height: 16px;
  background: #fff;
  border-top: 1.5px solid var(--c-blue-600);
  border-right: 1.5px solid var(--c-blue-600);
  transform: rotate(45deg);
}
.cd-zone--membrane {
  background:
    repeating-linear-gradient(90deg, transparent 0 18px, rgba(31, 91, 214, .05) 18px 20px),
    var(--c-bg-soft);
}
.cd-zone--resp { background: var(--c-blue-50); }
.cd-zone-label {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--c-muted);
}
.cd-art { height: 150px; margin-top: 12px; display: grid; place-items: center; }
.cd-art svg { width: 100%; max-width: 200px; height: 100%; }
.cd-en { margin-top: 12px; font-size: 16px; font-weight: 700; line-height: 1.35; color: var(--c-ink); }
.cd-ko { margin-top: 4px; font-size: 13.5px; line-height: 1.6; color: var(--c-muted); }
.resp-list { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.resp-list li {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  padding: 10px 12px;
  background: #fff;
  border: 1px solid var(--c-blue-100);
  border-radius: var(--radius-sm);
}
.resp-list b { font-size: 12px; font-weight: 700; letter-spacing: .04em; color: var(--c-blue-600); }
.resp-list span { font-size: 14px; font-weight: 700; color: var(--c-navy-900); }

/* ---------- 25-8. Evidence Summary Cards ---------- */
.evs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.evs-card {
  display: flex;
  flex-direction: column;
  padding: 28px;
  background: #fff;
  border: 1px solid var(--c-line);
}
.evs-top { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.evs-species { font-size: 11px; font-weight: 700; letter-spacing: .14em; color: var(--c-muted); }
.evs-title {
  margin-top: 18px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--c-ink);
}
.evs-source { margin-top: 4px; font-size: 13px; color: var(--c-muted); }
.evs-source em { font-style: italic; }
.evs-metric {
  margin-top: 20px;
  padding: 16px 18px;
  background: var(--c-bg-soft);
  border-left: 3px solid var(--c-blue-600);
}
.evs-k { display: block; font-size: 12px; font-weight: 600; color: var(--c-muted); }
.evs-v {
  display: block;
  margin-top: 4px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--c-navy-900);
}
.evs-n { display: block; margin-top: 4px; font-size: 12.5px; line-height: 1.55; color: var(--c-muted); }
.evs-card .link-arrow { margin-top: auto; padding-top: 24px; align-self: flex-start; border-bottom: 0; }

/* ---------- 25-9. Bar Compare / Paper Card / Results ---------- */
.bars { display: flex; flex-direction: column; gap: 14px; }
.bar-row {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr) 64px;
  gap: 14px;
  align-items: center;
}
.bar-label { font-size: 13px; font-weight: 600; line-height: 1.35; color: var(--c-ink); }
.bar-label small { display: block; font-size: 11.5px; font-weight: 400; color: var(--c-muted); }
.bar-track { position: relative; height: 22px; background: var(--c-bg-soft); border: 1px solid var(--c-line); }
.bar-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: calc(var(--v) * 1%);
  background: var(--c-line-strong);
}
.bar-row--ib .bar-fill { background: var(--c-navy-900); }
.bar-val { font-size: 16px; font-weight: 700; color: var(--c-navy-900); text-align: right; }
.bars-caption { margin-top: 12px; font-size: 12.5px; line-height: 1.6; color: var(--c-muted); }

.paper-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0;
  background: #fff;
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-navy-900);
}
.paper-visual { padding: 28px; background: var(--c-bg-soft); border-right: 1px solid var(--c-line); }
.paper-visual figure {
  background: #fff;
  border: 1px solid var(--c-line);
  box-shadow: var(--shadow);
}
.paper-visual img { width: 100%; height: auto; }
.paper-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--c-navy-900);
}
.paper-cite { margin-top: 16px; font-size: 14px; line-height: 1.7; color: var(--c-text); }
.paper-cite em { font-style: italic; }
.paper-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.paper-actions .btn { min-height: 46px; padding: 0 20px; font-size: 14px; }
.paper-credit { margin-top: 12px; font-size: 11.5px; color: var(--c-muted); }
.paper-body { padding: 28px; }

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}
.result-tile { padding: 16px 18px; background: var(--c-bg-soft); border: 1px solid var(--c-line); }
.result-k { font-size: 12px; font-weight: 700; letter-spacing: .06em; color: var(--c-muted); }
.result-v { margin-top: 6px; font-size: 17px; font-weight: 700; line-height: 1.35; color: var(--c-navy-900); }
.result-n { margin-top: 4px; font-size: 12px; line-height: 1.55; color: var(--c-muted); }

.virus-visual {
  position: relative;
  background: #fff;
  border: 1px solid var(--c-line);
}
.virus-visual img { width: 100%; height: auto; mix-blend-mode: multiply; }
.virus-visual figcaption {
  padding: 12px 16px;
  font-size: 12px;
  color: var(--c-muted);
  border-top: 1px solid var(--c-line);
}

/* ---------- 25-10. Credentials ---------- */
.milestone-emblem { width: 64px; height: auto; }

.cert-card {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 32px;
  align-items: center;
  padding: clamp(24px, 3vw, 36px);
  background: #fff;
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-navy-900);
}
.cert-emblem { width: 140px; height: auto; }
.cert-label { font-size: 11px; font-weight: 700; letter-spacing: .16em; color: var(--c-blue-600); }
.cert-title { margin-top: 8px; font-size: 22px; font-weight: 700; letter-spacing: -0.02em; color: var(--c-ink); }
.cert-title span { display: block; margin-top: 2px; font-size: 14px; font-weight: 500; color: var(--c-muted); }
.cert-meta { margin-top: 18px; border-top: 1px solid var(--c-line); }
.cert-meta > div {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr);
  gap: 12px;
  padding-block: 10px;
  border-bottom: 1px solid var(--c-line);
  font-size: 14px;
}
.cert-meta dt { color: var(--c-muted); }
.cert-meta dd { font-weight: 700; color: var(--c-ink); }
.cert-crop { border: 1px solid var(--c-line); box-shadow: var(--shadow); background: #fff; }
.cert-crop img { width: 100%; height: auto; }
.cert-crop figcaption { padding: 8px 12px; font-size: 11.5px; color: var(--c-muted); border-top: 1px solid var(--c-line); }

.patent-wrap {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(40px, 7vw, 112px);
  align-items: center;
}
.patent-stack { position: relative; width: 100%; max-width: 380px; aspect-ratio: 4 / 5; margin-inline: auto; }
.pdoc {
  position: absolute;
  inset: 0;
  background: #fff;
  border: 1px solid var(--c-line-strong);
  box-shadow: var(--shadow);
}
.pdoc--3 { transform: rotate(-7deg) translate(-18px, 10px); background: #F1F4F9; }
.pdoc--2 { transform: rotate(4deg) translate(16px, 4px); background: #F7F9FC; }
.pdoc--3::before,
.pdoc--2::before {
  content: "";
  position: absolute;
  inset: 18% 12% 20%;
  background: repeating-linear-gradient(to bottom, var(--c-line) 0 2px, transparent 2px 16px);
  filter: blur(1px);
}
.pdoc--1 { display: flex; flex-direction: column; padding: 36px 32px; border-top: 6px solid var(--c-navy-900); }
.pdoc-top { font-size: 11px; font-weight: 700; letter-spacing: .2em; color: var(--c-blue-600); }
.pdoc-title {
  margin-top: 16px;
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--c-navy-900);
}
.pdoc-lines {
  flex: 1;
  margin-top: 28px;
  background: repeating-linear-gradient(to bottom, var(--c-line) 0 2px, transparent 2px 14px);
  filter: blur(.6px);
  opacity: .9;
}
.pdoc-foot { display: flex; justify-content: space-between; align-items: flex-end; margin-top: 20px; }
.pdoc-brand { font-size: 14px; font-weight: 800; letter-spacing: .1em; color: var(--c-navy-900); }
.pdoc-seal {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--c-blue-600);
  border: 1.5px solid var(--c-blue-600);
  border-radius: 50%;
}
.region-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }

/* ---------- 25-11. Biosecurity Paradigm ---------- */
.paradigm { margin-top: clamp(40px, 5vw, 64px); }
.pd-row {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 24px;
  align-items: center;
}
.pd-label { font-size: 12px; font-weight: 700; letter-spacing: .18em; color: var(--c-muted); }
.pd-row--next .pd-label { color: var(--c-blue-600); }
.pd-blocks { display: flex; align-items: stretch; gap: 10px; }
.pd-block {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 84px;
  padding: 16px 18px;
  background: #fff;
  border: 1px solid var(--c-line-strong);
}
.pd-block b { font-size: 16px; font-weight: 700; color: var(--c-navy-900); line-height: 1.3; }
.pd-block span { margin-top: 2px; font-size: 13px; color: var(--c-muted); }
.pd-block--host {
  flex: 1.4;
  color: #fff;
  background: var(--c-blue-600);
  border-color: var(--c-blue-600);
  box-shadow: 0 12px 28px -14px rgba(31, 91, 214, .7);
}
.pd-block--host b { color: #fff; letter-spacing: .02em; }
.pd-block--host span { color: rgba(255, 255, 255, .85); }
.pd-plus { display: grid; place-items: center; font-size: 20px; font-weight: 300; color: var(--c-muted); }
.pd-arrow {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 24px;
  padding-block: 14px;
  color: var(--c-blue-600);
}
.pd-arrow span { grid-column: 2; display: flex; align-items: center; gap: 10px; font-size: 12px; font-weight: 700; letter-spacing: .14em; }
.pd-arrow .icon { font-size: 22px; stroke-width: 2; }
.pd-row--current .pd-block { background: var(--c-bg-soft); }

.policy-q {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
  gap: 32px;
  align-items: center;
  margin-top: clamp(40px, 5vw, 56px);
  padding: clamp(28px, 3.5vw, 44px);
  background: var(--c-navy-900);
  color: #fff;
}
.policy-steps { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 11px; font-weight: 700; letter-spacing: .14em; color: #8FD3EA; }
.policy-steps span + span::before { content: "→"; margin-right: 8px; color: rgba(255, 255, 255, .5); }
.policy-lead { margin-top: 16px; font-size: 14px; color: rgba(255, 255, 255, .75); }
.policy-quote {
  margin-top: 10px;
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
}
.policy-quote-ko { margin-top: 10px; font-size: 16px; line-height: 1.6; color: rgba(255, 255, 255, .85); }
.pei {
  padding: 24px;
  text-align: center;
  border: 1px dashed rgba(143, 211, 234, .6);
}
.pei-kicker { font-size: 11px; font-weight: 600; letter-spacing: .14em; color: rgba(255, 255, 255, .7); }
.pei-title { margin-top: 10px; font-size: clamp(20px, 2vw, 26px); font-weight: 800; letter-spacing: .06em; color: #fff; }
.pei-ko { margin-top: 4px; font-size: 18px; font-weight: 700; color: #8FD3EA; }
.paradigm-note { margin-top: 24px; max-width: 860px; }
.paradigm-note p { font-size: 16px; line-height: 1.85; color: var(--c-text); }
.paradigm-note p + p { margin-top: 10px; }

.species-grid--5 { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.milestone-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cert-card + .milestone-grid { margin-top: 24px; }

/* ---------- 25-12. Responsive ---------- */
@media (max-width: 1024px) {
  .species-grid--5 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .milestone-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 768px) {
  .species-grid--5 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .milestone-grid--3 { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 400px) {
  .species-grid--5 { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 1200px) {
  .stages { grid-template-columns: minmax(0, 1fr) 88px minmax(0, 1.2fr) minmax(0, .9fr); }
  .stage { padding: 28px 20px 32px; }
  .stage-outcome { padding: 28px 18px 32px; }
}

@media (max-width: 1024px) {
  .stages { grid-template-columns: minmax(0, 1fr); }
  .stage--2 { border-right: 0; border-bottom: 1px solid var(--c-line); }
  .stage-divider { flex-direction: row; padding: 16px; }
  .stage-divider-text { writing-mode: horizontal-tb; transform: none; }
  .stage-divider .icon { transform: rotate(90deg); }
  .zc-grid { gap: 16px; }
  .zc-card { padding: 28px 20px; }
  .dyn { grid-template-columns: minmax(0, 1fr); padding-bottom: 0; }
  .dyn::after, .dyn::before { display: none; }
  .dyn-core { order: -1; }
  .cell-dia { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cd-zone:nth-child(3) { border-left: 0; }
  .cd-zone:nth-child(n+3) { border-top: 1px solid var(--c-line); }
  .cd-zone:nth-child(2)::after { display: none; }
  .evs { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .paper-card { grid-template-columns: minmax(0, 1fr); }
  .paper-visual { border-right: 0; border-bottom: 1px solid var(--c-line); }
  .cert-card { grid-template-columns: 110px minmax(0, 1fr); }
  .cert-emblem { width: 110px; }
  .cert-crop { grid-column: 1 / -1; }
  .patent-wrap { grid-template-columns: minmax(0, 1fr); }
  .policy-q { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 768px) {
  .zc-grid { grid-template-columns: minmax(0, 1fr); }
  .cell-dia { grid-template-columns: minmax(0, 1fr); }
  .cd-zone + .cd-zone { border-left: 0; border-top: 1px solid var(--c-line); }
  .cd-zone:not(:last-child)::after {
    display: block;
    right: auto;
    left: 50%;
    top: auto;
    bottom: -9px;
    transform: translateX(-50%) rotate(135deg);
  }
  .cd-art { height: 120px; }
  .vx-hint { display: none; }
  .vx-foot { grid-template-columns: minmax(0, 1fr); }
  .vx-foot > div { padding: 16px 20px; }
  .bar-row { grid-template-columns: minmax(0, 1fr) 56px; gap: 6px 12px; }
  .bar-label { grid-column: 1 / -1; }
  .result-grid { grid-template-columns: minmax(0, 1fr); }
  .stages-foot { grid-template-columns: minmax(0, 1fr); padding: 20px; }
  .pd-row, .pd-arrow { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .pd-arrow span { grid-column: 1; }
  .pd-blocks { flex-direction: column; gap: 6px; }
  .pd-plus { height: 16px; }
  .pd-block { min-height: 0; }
}

@media (max-width: 560px) {
  .patent-stack { max-width: 280px; }
  .pdoc--3 { transform: rotate(-5deg) translate(-6px, 6px); }
  .pdoc--2 { transform: rotate(3deg) translate(6px, 2px); }
  .cert-card { grid-template-columns: minmax(0, 1fr); text-align: left; }
  .cert-emblem { width: 96px; }
  .paper-visual, .paper-body { padding: 20px; }
  .stage { padding: 24px 20px 28px; }
}


/* ==========================================================================
   26. PUBLIC RELEASE — Contact · Company Updates · Privacy · Notes
   ========================================================================== */

/* Large dark-section titles are always visible (no reveal hiding / clipping) */
.mission-inner { z-index: 1; }
.has-reveal .mission-title.reveal { opacity: 1; transform: none; }

/* Footer contact links */
.footer-contact a { color: rgba(255, 255, 255, .9); transition: color var(--dur) var(--ease); }
.footer-contact a:hover { color: #fff; text-decoration: underline; text-underline-offset: 4px; }
.footer-contact dd { overflow-wrap: anywhere; }

/* Mechanistic model note */
.mech-note {
  margin-top: 16px;
  padding: 14px 18px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text);
  background: #fff;
  border: 1px dashed var(--c-line-strong);
}
.mech-note-label { font-size: 10.5px; font-weight: 700; letter-spacing: .18em; color: var(--c-blue-600); }
.mech-note [lang="en"] { margin-top: 4px; font-style: italic; color: var(--c-muted); }

/* Technology hierarchy: BTN LAB → Labile Zinc → Dynamic Coordination → Material → Product */
.tech-hierarchy { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 28px; }
.tech-hierarchy li {
  display: inline-flex;
  flex-direction: column;
  padding: 8px 12px;
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-navy-900);
  background: #fff;
  border: 1px solid var(--c-line-strong);
}
.tech-hierarchy li small { font-size: 10px; font-weight: 700; letter-spacing: .12em; color: var(--c-muted); }
.tech-hierarchy li.is-core { color: #fff; background: var(--c-navy-900); border-color: var(--c-navy-900); }
.tech-hierarchy li.is-core small { color: #8FD3EA; }
.tech-hierarchy li.is-current { border-color: var(--c-blue-600); box-shadow: inset 0 -3px 0 var(--c-blue-600); }
.tech-hierarchy li + li::before { content: none; }
.tech-hierarchy .th-arrow { padding: 0; border: 0; background: none; color: var(--c-blue-600); font-weight: 400; }

.evidence-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* Contact */
.contact-card {
  background: #fff;
  border: 1px solid var(--c-line);
  border-top: 4px solid var(--c-navy-900);
  box-shadow: var(--shadow-lg);
}
.contact-card-head { padding: 28px 32px 20px; border-bottom: 1px solid var(--c-line); }
.contact-card-name { font-size: 22px; font-weight: 800; letter-spacing: -0.01em; color: var(--c-navy-900); }
.contact-card-name span { display: block; margin-top: 2px; font-size: 15px; font-weight: 600; color: var(--c-muted); }
.contact-lines { padding: 8px 32px; }
.contact-line {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-block: 16px;
  border-bottom: 1px solid var(--c-line);
}
.contact-line:last-child { border-bottom: 0; }
.contact-line dt { font-size: 11.5px; font-weight: 700; letter-spacing: .14em; color: var(--c-muted); }
.contact-line dd { font-size: 17px; font-weight: 600; line-height: 1.6; color: var(--c-ink); overflow-wrap: anywhere; }
.contact-line dd a:hover { color: var(--c-blue-600); }
.contact-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--c-line);
  border-top: 1px solid var(--c-line);
}
.contact-actions .btn { min-height: 56px; border-radius: 0; font-size: 14px; }
.contact-actions .btn-outline { border: 0; }
.copy-status { min-height: 20px; padding: 0 32px 16px; font-size: 13px; color: var(--c-blue-600); }
.copy-status:empty { display: none; }

.location {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  background: #fff;
  border: 1px solid var(--c-line);
}
.location-info { padding: clamp(28px, 3.5vw, 44px); }
.location-info .section-note { margin-top: 20px; }
.location-map {
  position: relative;
  min-height: 320px;
  background:
    linear-gradient(90deg, transparent 0 calc(38% - 10px), #E6ECF4 calc(38% - 10px) calc(38% + 10px), transparent calc(38% + 10px)),
    linear-gradient(0deg, transparent 0 calc(58% - 8px), #E6ECF4 calc(58% - 8px) calc(58% + 8px), transparent calc(58% + 8px)),
    linear-gradient(35deg, transparent 0 calc(70% - 5px), #EDF1F7 calc(70% - 5px) calc(70% + 5px), transparent calc(70% + 5px)),
    repeating-linear-gradient(0deg, transparent 0 39px, #F0F3F8 39px 40px),
    repeating-linear-gradient(90deg, transparent 0 39px, #F0F3F8 39px 40px),
    var(--c-bg-soft);
  border-left: 1px solid var(--c-line);
}
.location-pin {
  position: absolute;
  left: 38%;
  top: 58%;
  transform: translate(-50%, -100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.location-pin svg { width: 44px; height: 44px; fill: var(--c-navy-900); filter: drop-shadow(0 6px 10px rgba(10, 31, 68, .25)); }
.location-pin span {
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 700;
  color: var(--c-navy-900);
  background: #fff;
  border: 1px solid var(--c-line-strong);
  white-space: nowrap;
}

.inquiry-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.inquiry-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 28px 24px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-navy-900);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.inquiry-card:hover { box-shadow: var(--shadow); border-color: var(--c-line-strong); }
.inquiry-en { font-size: 12px; font-weight: 700; letter-spacing: .14em; color: var(--c-blue-600); }
.inquiry-ko { margin-top: 10px; font-size: 18px; font-weight: 700; color: var(--c-ink); }
.inquiry-desc { margin-top: 8px; font-size: 14px; line-height: 1.7; color: var(--c-muted); }
.inquiry-card .link-arrow { margin-top: auto; padding-top: 20px; border-bottom: 0; align-self: flex-start; font-size: 14px; }

/* Company updates list */
.update-list { border-top: 2px solid var(--c-navy-900); }
.update-item a {
  display: grid;
  grid-template-columns: 150px 190px minmax(0, 1fr) 24px;
  gap: 24px;
  align-items: center;
  padding: 28px 8px;
  border-bottom: 1px solid var(--c-line);
  transition: background-color var(--dur) var(--ease);
}
.update-item a:hover { background: var(--c-bg-soft); }
.update-date { font-family: var(--font-mono); font-size: 15px; font-weight: 600; color: var(--c-navy-900); }
.update-cat { font-size: 11.5px; font-weight: 700; letter-spacing: .14em; color: var(--c-blue-600); }
.update-title { font-size: 19px; font-weight: 700; line-height: 1.45; color: var(--c-ink); }
.update-desc { margin-top: 4px; font-size: 14px; line-height: 1.65; color: var(--c-muted); }
.update-item .icon { font-size: 20px; color: var(--c-navy-900); transition: transform var(--dur) var(--ease); }
.update-item a:hover .icon { transform: translateX(4px); color: var(--c-blue-600); }

/* Privacy policy document */
.policy-doc { max-width: 880px; }
.policy-doc h2 {
  margin-top: 48px;
  padding-top: 24px;
  font-size: 19px;
  font-weight: 700;
  color: var(--c-ink);
  border-top: 1px solid var(--c-line);
}
.policy-doc h2:first-of-type { margin-top: 0; }
.policy-doc p, .policy-doc li { font-size: 15.5px; line-height: 1.85; color: var(--c-text); }
.policy-doc p { margin-top: 12px; }
.policy-doc ul { margin-top: 12px; padding-left: 20px; list-style: disc; }
.policy-doc li + li { margin-top: 4px; }
.policy-doc a { color: var(--c-blue-600); text-decoration: underline; text-underline-offset: 3px; }
.policy-meta { margin-top: 40px; padding: 20px 24px; background: var(--c-bg-soft); border-left: 3px solid var(--c-navy-900); font-size: 14px; }

@media (max-width: 1024px) {
  .evidence-grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .inquiry-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .location { grid-template-columns: minmax(0, 1fr); }
  .location-map { border-left: 0; border-top: 1px solid var(--c-line); min-height: 260px; }
  .update-item a { grid-template-columns: 130px minmax(0, 1fr) 24px; gap: 8px 20px; }
  .update-cat { grid-column: 2; grid-row: 1; }
  .update-date { grid-row: 1 / span 2; }
  .update-item a > div { grid-column: 2; }
  .update-item .icon { grid-column: 3; grid-row: 1 / span 2; }
}
@media (max-width: 768px) {
  .evidence-grid--4 { grid-template-columns: minmax(0, 1fr); }
  .contact-actions { grid-template-columns: minmax(0, 1fr); }
  .contact-card-head, .contact-lines { padding-inline: 20px; }
  .copy-status { padding-inline: 20px; }
  .contact-line { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .update-item a { grid-template-columns: minmax(0, 1fr) 20px; gap: 6px 12px; padding: 22px 4px; }
  .update-date, .update-cat, .update-item a > div { grid-column: 1; grid-row: auto; }
  .update-item .icon { grid-column: 2; grid-row: 1 / span 3; }
  .tech-hierarchy .th-arrow { display: none; }
}
@media (max-width: 560px) {
  .inquiry-grid { grid-template-columns: minmax(0, 1fr); }
}

/* Vaccination timeline — 모바일에서 가로 스크롤 없이 화면 폭에 맞춤 */
@media (max-width: 768px) {
  .vx { --vx-min: 4.6; --vx-span: 13.2; }
  .vx-scroll { overflow: visible; }
  .vx-body { min-width: 0; padding: 4px 16px 16px; }
  .vx-row { grid-template-columns: minmax(0, 1fr); gap: 2px; padding-top: 14px; }
  .vx-label { font-size: 13px; }
  .vx-track { height: 118px; }
  .vx-mark { width: 84px; }
  .vx-mark b { margin-top: 10px; font-size: 11px; }
  .vx-mark small { font-size: 10px; }
  .vx-flag { font-size: 10px; padding: 3px 8px; }
  .vx-bar { justify-content: flex-end; padding: 0 8px 0 0; }
  .vx-axis { margin-left: 0; }
  .vx-axis span { font-size: 10px; }
}
