/* ============================================================
   CubeSignPlus — style.css
   2027-01 리뉴얼 토큰(A안 재채택, 2026-09-23): 라이트 베이스 + 인디고 액센트 + 다크 밴드(CTA·푸터)
   헤드라인은 단색, 강조는 인디고 mark 한 곳. 그라디언트 텍스트 없음
   깊이는 보더 + 저채도 섀도우, 모션은 진입 리빌 + 무정전 데모 한정
   ============================================================ */

/* 본문 폰트: Pretendard Variable 공식 dynamic-subset(92조각)은 assets/css/pretendard-subset.css 에서 로드 */

:root {
  --bg: #f8fafc;             /* slate-50 */
  --surface: #ffffff;
  --surface-2: #f1f5f9;      /* slate-100 */
  --line: #e2e8f0;           /* slate-200 */
  --line-strong: #cbd5e1;    /* slate-300 */
  --text: #0f172a;           /* slate-900 */
  --muted: #475569;          /* slate-600 */
  --subtle: #64748b;         /* slate-500 */

  /* 브랜드 인디고 (A안 재채택, 2026-09-23) */
  --accent: #4f46e5;         /* 버튼 채움·강조 (흰 글자 6.29:1) */
  --accent-strong: #4338ca;  /* 18px 미만 강조 글자·버튼 채움 */
  --accent-deep: #3730a3;    /* 버튼 호버 */
  --accent-soft: #6366f1;
  --accent-subtle: #eef2ff;  /* 옅은 배경 */
  --accent-line: #c7d2fe;    /* 옅은 보더 */
  --on-dark: #a5b4fc;        /* 다크 밴드 위 강조 */

  /* 다크 밴드 */
  --ink: #0f172a;
  --ink-deep: #0c0d0f;
  --ink-line: #34353a;
  --ink-muted: #a9a9ae;
  --ink-subtle: #718197;     /* 다크 배경 위 작은 보조 글자 (4.5:1 이상) */

  --grad-cta: linear-gradient(160deg, #1e1b4b 0%, #0f172a 100%);

  --danger: #dc2626;
  --danger-subtle: #fef2f2;
  --ok: #059669;
  --ok-subtle: #ecfdf5;
  --ok-strong: #047857;      /* 밝은 배경 위 초록 글자 */
  --warn: #d97706;
  --warn-subtle: #fffbeb;
  --warn-strong: #b45309;    /* 밝은 배경 위 호박색 글자 */

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 16px -4px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 24px 48px -20px rgba(15, 23, 42, 0.22);

  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;

  --font: "Pretendard Variable", Pretendard, "Apple SD Gothic Neo",
          "Malgun Gothic", "Segoe UI", sans-serif;
  --ease-premium: cubic-bezier(0.16, 1, 0.3, 1);
  --header-h: 68px;
  --max: 1160px;
}

/* --- 리셋 --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
}
img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul[role="list"], ol[role="list"] { list-style: none; }
h1, h2, h3, h4 { line-height: 1.3; letter-spacing: -0.035em; }
mark { background: none; color: var(--accent); }
/* 아이콘: Material Symbols Outlined 서브셋(사용 아이콘 40개, 48KB)을 사이트 안에 둔다.
   새 아이콘을 쓰면 아래 URL의 icon_names에 알파벳순으로 추가해 CSS를 받고, 그 안의 woff2를 이 파일로 교체할 것.
   https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,300..500,0..1,-25..0&icon_names=...&display=block */
@font-face {
  font-family: "Material Symbols Outlined";
  font-style: normal;
  font-weight: 300 500;
  font-display: block;
  src: url("../fonts/material-symbols-subset.woff2") format("woff2");
}
.material-symbols-outlined {
  font-family: "Material Symbols Outlined";
  font-weight: normal; font-style: normal; line-height: 1;
  letter-spacing: normal; text-transform: none; white-space: nowrap; word-wrap: normal; direction: ltr;
  -webkit-font-feature-settings: "liga"; font-feature-settings: "liga";
  -webkit-font-smoothing: antialiased;
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  font-size: 22px;
  /* 폰트가 오기 전 글자 이름("light_mode" 등)이 자리를 차지해 레이아웃이 흔들리지 않도록 1em 정사각형으로 고정 */
  display: inline-block; width: 1em; height: 1em; overflow: hidden;
  flex: none;
}

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 860px; }

.skip-link {
  position: absolute; left: 16px; top: -48px; z-index: 100;
  padding: 10px 16px; background: var(--accent-strong); color: #fff;
  border-radius: var(--radius-md); transition: top 150ms ease-out;
}
.skip-link:focus { top: 12px; }

.text-grad { color: var(--accent); }

/* --- 진입 리빌(트랜스폼·오퍼시티만) --- */
/* 리빌은 JS가 켜진 경우에만(html.js). JS가 없거나 늦으면 본문이 그대로 보인다. 첫 화면(히어로)은 리빌하지 않는다 */
.js .reveal { opacity: 0; transform: translateY(24px); }
.js .reveal.in { opacity: 1; transform: none; transition: opacity 0.6s var(--ease-premium), transform 0.6s var(--ease-premium); }
[data-stagger] > .reveal.in:nth-child(2) { transition-delay: 80ms; }
[data-stagger] > .reveal.in:nth-child(3) { transition-delay: 160ms; }
[data-stagger] > .reveal.in:nth-child(4) { transition-delay: 240ms; }
[data-stagger] > .reveal.in:nth-child(5) { transition-delay: 320ms; }
[data-stagger] > .reveal.in:nth-child(6) { transition-delay: 400ms; }
[data-stagger] > .reveal.in:nth-child(7) { transition-delay: 480ms; }

/* ============ 헤더 ============ */
.site-header {
  position: fixed; inset: 0 0 auto; z-index: 50;
  height: var(--header-h);
  border-bottom: 1px solid transparent;
  transition: background 200ms ease-out, border-color 200ms ease-out, box-shadow 200ms ease-out;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom-color: var(--line);
  box-shadow: var(--shadow-sm);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.wordmark {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 19px; font-weight: 700; letter-spacing: -0.01em;
}
.wordmark em { font-style: normal; color: var(--accent); }
.wordmark-mark {
  width: 24px; height: 24px; border-radius: 6px;
  background: var(--accent);
  position: relative;
}
.wordmark-mark::before {
  content: ""; position: absolute; inset: 5px 5px 8px;
  border-radius: 2px; background: #fff;
}
.wordmark-mark::after {
  content: ""; position: absolute; left: 8px; right: 8px; bottom: 4px; height: 2px;
  border-radius: 1px; background: #fff;
}
.gnb { display: flex; align-items: center; gap: 28px; }
.gnb > a:not(.btn) { font-size: 15px; font-weight: 500; color: var(--muted); transition: color 150ms ease-out; }
.gnb > a:not(.btn):hover { color: var(--text); }
.gnb > a.is-active { color: var(--accent-strong); font-weight: 600; }
.nav-toggle { display: none; padding: 8px; color: var(--text); }

/* ============ 버튼 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 12px 22px; border-radius: var(--radius-md);
  font-size: 15px; font-weight: 600; letter-spacing: -0.01em;
  transition: background 150ms ease-out, border-color 150ms ease-out, color 150ms ease-out, box-shadow 150ms ease-out, transform 150ms ease-out;
}
.btn .material-symbols-outlined { font-size: 18px; }
.btn-primary { background: var(--accent-strong); color: #fff; box-shadow: 0 8px 20px -8px rgba(79, 70, 229, 0.45); }
.btn-primary:hover { background: var(--accent-deep); }
.btn-primary:active { transform: translateY(1px); }
.btn-ghost { border: 1px solid var(--line-strong); color: var(--text); background: var(--surface); }
.btn-ghost:hover { border-color: var(--accent-line); background: var(--accent-subtle); }
.btn-white { background: #fff; color: var(--accent-strong); }
.btn-white:hover { background: var(--accent-subtle); }
.btn-outline-white { border: 1px solid rgba(255, 255, 255, 0.45); color: #fff; }
.btn-outline-white:hover { background: rgba(255, 255, 255, 0.12); }
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn-lg { padding: 15px 30px; font-size: 16px; }
.btn.is-disabled { cursor: not-allowed; color: var(--subtle); border: 1px solid var(--line); background: var(--surface-2); box-shadow: none; }
.btn.is-disabled:hover { background: var(--surface-2); border-color: var(--line); }
.soon {
  font-style: normal; font-size: 11px; font-weight: 700;
  padding: 2px 8px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line);
  color: var(--subtle); letter-spacing: 0.02em;
}

/* ============ 배지 ============ */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11.5px; font-weight: 700; letter-spacing: 0.04em;
  padding: 3px 10px; border-radius: 999px;
}
.badge-accent { background: var(--accent-subtle); color: var(--accent-strong); border: 1px solid var(--accent-line); }
.badge-soon { background: var(--warn-subtle); color: var(--warn-strong); border: 1px solid #fde68a; }
.badge-ok { background: var(--ok-subtle); color: var(--ok-strong); border: 1px solid #a7f3d0; }

/* ============ 히어로(홈: 센터 정렬 — 라이브 디자인 계승) ============ */
.hero { position: relative; padding: calc(var(--header-h) + 76px) 0 96px; overflow: hidden; }
.hero-glow {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(46% 38% at 50% 0%, rgba(79, 70, 229, 0.10), transparent 70%),
    radial-gradient(30% 26% at 12% 42%, rgba(79, 70, 229, 0.05), transparent 70%),
    radial-gradient(30% 26% at 88% 38%, rgba(21, 23, 28, 0.06), transparent 70%);
}
.hero-center { position: relative; text-align: center; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; font-weight: 800; letter-spacing: 0.2em;
  color: var(--accent-strong); text-transform: uppercase;
  padding: 7px 16px; border: 1px solid var(--accent-line); border-radius: 999px;
  background: var(--accent-subtle);
}
.hero h1 {
  font-size: clamp(40px, 6vw, 68px); font-weight: 900; line-height: 1.12; letter-spacing: -0.05em;
  margin: 26px auto 20px; max-width: 20ch; color: var(--text);
}
.hero-quote {
  font-size: clamp(17px, 2.1vw, 21px); font-weight: 600; color: var(--accent-strong);
}
.hero-sub { margin-top: 12px; font-size: 17px; color: var(--muted); }
.hero-sub strong { color: var(--accent-strong); font-weight: 700; }
.hero-cta { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 34px; }
.hero-chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-top: 44px; }
.hero-chips li {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 22px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  font-size: 14.5px; font-weight: 600; color: var(--muted);
}
.hero-chips .material-symbols-outlined { font-size: 20px; color: var(--accent); }

.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); flex: none; animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.hero-screen { max-width: 920px; margin: 64px auto 0; }
.device-frame {
  position: relative;
  border: 1px solid var(--line); border-radius: var(--radius-xl);
  background: var(--surface); padding: 10px;
  box-shadow: var(--shadow-lg);
}
.device-frame img { border-radius: var(--radius-lg); aspect-ratio: 16 / 9; object-fit: cover; width: 100%; }
.device-status {
  position: absolute; top: 24px; left: 24px;
  display: inline-flex; align-items: center; gap: 7px;
  padding: 6px 12px; border-radius: 999px;
  background: rgba(15, 23, 42, 0.68); border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  color: #fff; font-size: 12px; font-weight: 700; letter-spacing: 0.06em;
}
.hero-float-chip {
  position: absolute; right: 22px; bottom: -22px;
  display: flex; align-items: center; gap: 12px; text-align: left;
  padding: 14px 18px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
}
.hero-float-chip .material-symbols-outlined { color: var(--accent); font-size: 26px; }
.hero-float-chip strong { display: block; font-size: 14.5px; letter-spacing: -0.01em; }
.hero-float-chip span:not(.material-symbols-outlined) { font-size: 12.5px; color: var(--muted); }

/* 홈 히어로: 좌 문구 · 우 세로형 화면 (캔버스 보드 1 C안, 2026-09-23) */
.hero-split { position: relative; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: 56px; align-items: center; }
.hero-copy .kicker { margin-bottom: 16px; }
.hero-copy h1 { margin: 0 0 20px; max-width: none; }
.hero-lead { font-size: 18px; color: var(--muted); max-width: 34em; }
.hero-copy .hero-cta { justify-content: flex-start; margin-top: 32px; }
.hero-visual { justify-self: end; width: 100%; max-width: 380px; margin: 0; }
.hero-visual img { aspect-ratio: 3 / 4; object-position: 96% center; }

/* 지표 스트립 (다크 밴드) */
.metrics-band { background: var(--ink); color: #fff; }
.metrics-band ul { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.metrics-band li { padding: 28px 24px; border-right: 1px solid rgba(255, 255, 255, 0.08); }
.metrics-band li:last-child { border-right: 0; }
.metrics-band strong { display: block; font-size: clamp(24px, 2.6vw, 32px); font-weight: 900; letter-spacing: -0.03em; line-height: 1.2; color: var(--on-dark); }
.metrics-band span { display: block; margin-top: 4px; font-size: 13.5px; color: #94a3b8; }

/* ============ 서브페이지 히어로 ============ */
.page-hero {
  position: relative; overflow: hidden;
  padding: calc(var(--header-h) + 64px) 0 64px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.page-hero .hero-glow { opacity: 0.9; }
.page-hero .container { position: relative; }
.page-hero h1 { font-size: clamp(32px, 4.4vw, 48px); font-weight: 900; letter-spacing: -0.05em; margin-top: 14px; }
.page-hero .lead { margin-top: 16px; font-size: 17px; color: var(--muted); max-width: 62ch; }

/* ============ 섹션 공통 ============ */
.section { padding: 104px 0; }
.section-tight { padding: 84px 0; }
.section-alt { background: var(--surface); border-block: 1px solid var(--line); }
.section-head { max-width: 680px; margin: 0 auto 56px; text-align: center; }
.section-head-left { margin-inline: 0; text-align: left; }
.section-head h2 { font-size: clamp(27px, 3.4vw, 40px); font-weight: 850; letter-spacing: -0.045em; }
.section-head p { margin-top: 14px; color: var(--muted); font-size: 17px; }
.kicker {
  font-size: 12.5px; font-weight: 800; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--accent-strong); margin-bottom: 12px;
}
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.chip-row li {
  font-size: 13px; font-weight: 600; color: var(--accent-strong);
  padding: 6px 12px; border-radius: 999px;
  background: var(--accent-subtle); border: 1px solid var(--accent-line);
}

/* 아이콘 타일(라이브 디자인의 컬러 아이콘 사각형) */
.icon-tile {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 12px; flex: none;
  background: var(--accent-subtle); color: var(--accent);
}
.icon-tile .material-symbols-outlined { font-size: 24px; }
.icon-tile-blue, .icon-tile-violet, .icon-tile-pink { background: var(--accent-subtle); color: var(--accent); }
.icon-tile-amber { background: var(--warn-subtle); color: var(--warn); }
.icon-tile-red { background: var(--danger-subtle); color: var(--danger); }
.icon-tile-teal { background: #f0fdfa; color: #0d9488; }

/* ============ 문제점 ============ */
.section-problems { background: var(--surface); border-block: 1px solid var(--line); }
.problems-grid { display: grid; grid-template-columns: 4fr 3fr; gap: 24px; }
.problem-group {
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius-xl); padding: 30px;
}
.problem-group > h3 {
  display: flex; align-items: center; gap: 10px;
  font-size: 18px; padding-bottom: 18px; border-bottom: 1px solid var(--line);
}
.problem-group > h3 .material-symbols-outlined { color: var(--danger); }
.problem-group li {
  display: flex; gap: 14px; align-items: flex-start;
  margin-top: 16px; padding: 16px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: border-color 200ms ease-out, box-shadow 200ms ease-out;
}
.problem-group li:hover { border-color: var(--accent-line); box-shadow: var(--shadow-md); }
.problem-group h4 { font-size: 15.5px; margin-bottom: 3px; }
.problem-group li p { font-size: 14px; color: var(--muted); }

/* 문제점 3항목 번호형 그리드 (캔버스 보드 3 A2) */
.criteria-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-xl); overflow: hidden;
}
.criteria-grid li { position: relative; display: flex; flex-direction: column; gap: 12px; padding: 34px 30px 30px; }
.criteria-grid li + li { border-left: 1px solid var(--line); }
.criteria-num { position: absolute; right: 24px; top: 20px; font-size: 13px; font-weight: 700; color: var(--subtle); font-variant-numeric: tabular-nums; }
.criteria-grid .material-symbols-outlined { font-size: 30px; color: var(--accent); }
.criteria-grid h3 { font-size: 20px; font-weight: 800; letter-spacing: -0.03em; }
.criteria-grid p { font-size: 15px; color: var(--muted); }

/* ============ 솔루션 기술 ============ */
.tech-row {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 56px; align-items: center;
  padding: 48px 0; border-top: 1px solid var(--line);
}
.tech-row:first-of-type { border-top: 0; }
.tech-row-flip .tech-copy { order: 2; }
.tech-row-flip .tech-visual { order: 1; }
.tech-label {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--subtle);
}
.tech-num { font-size: 13px; color: var(--accent-strong); }
.tech-copy h3 { font-size: clamp(21px, 2.6vw, 27px); margin: 12px 0 14px; }
.tech-copy > p { color: var(--muted); margin-bottom: 20px; max-width: 46ch; }
.photo-card {
  border: 1px solid var(--line); border-radius: var(--radius-xl);
  overflow: hidden; background: var(--surface);
  box-shadow: var(--shadow-md);
}
.photo-card img { aspect-ratio: 3 / 2; object-fit: cover; width: 100%; }

.net-diagram {
  display: flex; align-items: center; gap: 0;
  border: 1px solid var(--line); border-radius: var(--radius-xl);
  background: var(--surface); padding: 44px 32px;
  box-shadow: var(--shadow-md);
}
.net-node {
  flex: none; display: flex; flex-direction: column; align-items: center; gap: 10px;
  width: 132px; padding: 22px 12px;
  background: var(--accent-subtle); border: 1px solid var(--accent-line);
  border-radius: var(--radius-lg);
  font-size: 13.5px; font-weight: 600; text-align: center; line-height: 1.45;
}
.net-node .material-symbols-outlined { font-size: 30px; color: var(--accent); }
.net-link {
  position: relative; flex: 1; height: 2px; margin: 0 10px;
  background: repeating-linear-gradient(90deg, var(--line-strong) 0 8px, transparent 8px 16px);
}
.net-link em {
  position: absolute; left: 50%; top: 12px; transform: translateX(-50%);
  font-style: normal; font-size: 12px; font-weight: 700;
  letter-spacing: 0.08em; color: var(--accent-strong); white-space: nowrap;
}
/* 점 이동은 transform으로(레이아웃 재계산 없음). 트랙 전체 폭 요소를 옮기고 점은 ::before */
.net-packet {
  position: absolute; top: -3px; left: 0;
  width: 100%; height: 8px;
  animation: packet 2.4s linear infinite;
}
.net-packet::before {
  content: ""; position: absolute; left: 0; top: 0;
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
}
@keyframes packet { 0% { transform: translateX(0); opacity: 0; } 12% { opacity: 1; } 88% { opacity: 1; } 100% { transform: translateX(calc(100% - 8px)); opacity: 0; } }

/* ============ 무정전 데모 ============ */
.demo {
  border: 1px solid var(--line); border-radius: var(--radius-xl);
  background: var(--surface); padding: 26px; margin-bottom: 72px;
  box-shadow: var(--shadow-md);
}
.demo-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap; margin-bottom: 22px;
}
.demo-net { display: flex; align-items: center; gap: 9px; font-size: 15px; font-weight: 600; }
.net-led { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.net-led-on { background: var(--ok); }
.net-led-off { background: var(--danger); animation: pulse 1.2s ease-in-out infinite; }
.demo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.demo-screen { min-width: 0; }
.demo-screen figcaption {
  display: flex; align-items: center; gap: 10px;
  font-size: 14px; font-weight: 700; color: var(--subtle); margin-bottom: 10px;
}
.demo-screen-cube figcaption { color: var(--text); }
.demo-badge {
  font-size: 11.5px; font-weight: 700; padding: 3px 10px; border-radius: 999px;
  background: var(--ok-subtle); color: var(--ok-strong);
  border: 1px solid #a7f3d0;
  transition: background 200ms ease-out, color 200ms ease-out, border-color 200ms ease-out;
}
.demo.offline .demo-badge {
  background: var(--accent-subtle); color: var(--accent-strong);
  border-color: var(--accent-line);
}
.demo-canvas {
  position: relative; aspect-ratio: 16 / 9; overflow: hidden;
  border-radius: var(--radius-lg); border: 1px solid var(--line-strong);
  background: var(--ink);
}
.demo-canvas img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  opacity: 0; transition: opacity 0.9s ease-out;
}
.demo-canvas img.is-active { opacity: 1; }
.demo-dead {
  position: absolute; inset: 0; z-index: 2;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
  background: var(--ink-deep); color: var(--ink-subtle);
  opacity: 0; transition: opacity 0.4s ease-out; pointer-events: none;
}
.demo-dead .material-symbols-outlined { font-size: 34px; color: var(--danger); }
.demo-dead strong { font-size: 17px; color: #94a3b8; letter-spacing: 0.02em; }
.demo-dead span:not(.material-symbols-outlined) { font-size: 12.5px; letter-spacing: 0.04em; }
.demo.offline .demo-dead { opacity: 1; }
.demo-note { margin-top: 18px; font-size: 14px; color: var(--subtle); }

.value-trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: start; }
.value-trio .value-card:nth-child(2) { margin-top: 26px; }
.value-trio .value-card:nth-child(3) { margin-top: 52px; }
.value-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-xl); padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: border-color 200ms ease-out, box-shadow 200ms ease-out, transform 200ms ease-out;
}
.value-card:hover { border-color: var(--accent-line); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.value-card .icon-tile { margin-bottom: 16px; }
.value-card h3 { font-size: 18px; margin-bottom: 10px; }
.value-card p { font-size: 14.5px; color: var(--muted); }

.premium-note {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  flex-wrap: wrap; margin-top: 44px; padding: 26px 30px;
  border: 1px dashed var(--accent-line); border-radius: var(--radius-xl);
  background: var(--accent-subtle);
}
.badge-dev {
  display: inline-block; font-size: 11.5px; font-weight: 700; letter-spacing: 0.06em;
  padding: 3px 10px; border-radius: 999px; margin-bottom: 10px;
  background: var(--surface); border: 1px solid var(--accent-line); color: var(--accent-strong);
}
.premium-note h3 { font-size: 17px; margin-bottom: 6px; }
.premium-note p:not(.badge-dev) { font-size: 14.5px; color: var(--muted); max-width: 60ch; }

/* ============ 활용 사례(벤토) ============ */
.case-bento {
  display: grid; gap: 20px;
  grid-template-columns: repeat(3, 1fr);
}
.case-card-wide { grid-column: span 2; grid-row: span 2; }
.case-note { margin-top: 16px; font-size: 13px; color: var(--subtle); }
.case-card {
  position: relative; overflow: hidden;
  border: 1px solid var(--line); border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: border-color 200ms ease-out, box-shadow 200ms ease-out, transform 200ms ease-out;
}
.case-card:hover { border-color: var(--accent-line); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.case-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.case-card-wide img { aspect-ratio: auto; position: absolute; inset: 0; height: 100%; }
.case-card-wide .case-body {
  position: relative; z-index: 1; height: 100%;
  display: flex; flex-direction: column; justify-content: flex-end;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0) 30%, rgba(15, 23, 42, 0.88) 80%);
  min-height: 340px;
}
.case-card-wide h3, .case-card-wide .case-body p { color: #fff; }
.case-card-wide .case-body p { color: rgba(255, 255, 255, 0.82); }
.case-body { padding: 22px 24px 24px; }
.case-body h3 { font-size: 18px; margin-bottom: 8px; }
.case-body p { font-size: 14.5px; color: var(--muted); }
.case-tags { display: flex; gap: 8px; margin-top: 14px; }
.case-tags span {
  font-size: 12.5px; font-weight: 600; color: var(--accent-strong);
  padding: 4px 10px; border-radius: 999px; background: var(--accent-subtle);
}
.case-card-wide .case-tags span { background: rgba(255, 255, 255, 0.16); color: #fff; }

/* ============ 고객 가치 ============ */
.values-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.values-grid article {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-xl); padding: 30px 26px;
  box-shadow: var(--shadow-sm);
  transition: border-color 200ms ease-out, box-shadow 200ms ease-out, transform 200ms ease-out;
}
.values-grid article:hover { border-color: var(--accent-line); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.values-grid .icon-tile { margin-bottom: 16px; }
.values-grid h3 { font-size: 17.5px; margin-bottom: 10px; }
.values-grid p { font-size: 14.5px; color: var(--muted); }

/* ============ 타겟 고객 ============ */
.target-list { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.target-list li {
  display: flex; gap: 18px; align-items: flex-start;
  padding: 24px; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}
.target-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 50%; flex: none;
  background: var(--accent-subtle); border: 1px solid var(--accent-line);
  font-size: 14px; font-weight: 700; color: var(--accent-strong);
  font-variant-numeric: tabular-nums;
}
.target-list h3 { font-size: 17.5px; margin-bottom: 5px; }
.target-list p { font-size: 14.5px; color: var(--muted); }
.target-closing {
  margin-top: 32px; padding: 18px 26px; text-align: center;
  background: var(--accent-subtle); border: 1px solid var(--accent-line);
  border-radius: 999px;
  font-size: 16px; color: var(--muted);
}
.target-closing strong { color: var(--accent-strong); }

/* ============ CTA(다크 밴드 + 인디고 글로우) ============ */
.section-cta { padding: 64px 0 104px; }
.cta-band {
  position: relative; overflow: hidden; text-align: center;
  border-radius: 24px; padding: 88px 32px;
  background: var(--grad-cta);
  color: #fff;
  box-shadow: var(--shadow-lg);
}
.cta-glow {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(42% 60% at 18% 0%, rgba(255, 255, 255, 0.06), transparent 70%),
    radial-gradient(42% 60% at 88% 100%, rgba(79, 70, 229, 0.35), transparent 70%);
}
.cta-band > .container-narrow, .cta-band h2, .cta-band p, .cta-band div, .cta-band ul { position: relative; }
.cta-band h2 { font-size: clamp(29px, 4vw, 44px); font-weight: 800; }
.cta-sub { margin-top: 18px; font-size: 17px; color: rgba(255, 255, 255, 0.85); }
.cta-buttons { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 36px; }
.cta-band .soon { background: rgba(255, 255, 255, 0.14); border-color: rgba(255, 255, 255, 0.3); color: rgba(255, 255, 255, 0.85); }
.cta-band .btn.is-disabled { background: transparent; border-color: rgba(255, 255, 255, 0.3); color: rgba(255, 255, 255, 0.6); }
.cta-band .btn.is-disabled:hover { background: transparent; }
.cta-contact {
  display: flex; justify-content: center; flex-wrap: wrap;
  gap: 12px 36px; margin-top: 36px;
}
.cta-contact li { display: flex; align-items: center; gap: 9px; font-size: 15.5px; color: rgba(255, 255, 255, 0.88); }
.cta-contact .material-symbols-outlined { font-size: 19px; }
.cta-contact a:hover { text-decoration: underline; }

/* 문의 폼 밴드 (캔버스 보드 3 A4, 허브 문의 폼과 같은 필드) */
.contact-band { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 48px; align-items: start; text-align: left; padding: 64px 56px; }
.contact-band > :not(.cta-glow) { position: relative; }
.contact-band > .cta-glow { position: absolute; }
.contact-copy .kicker { color: var(--on-dark); }
.contact-copy h2 { font-size: clamp(28px, 3.2vw, 38px); font-weight: 900; letter-spacing: -0.04em; }
.contact-copy .cta-sub { margin-top: 14px; }
.contact-channels { margin-top: 32px; display: grid; gap: 12px; }
.contact-channels div { display: flex; gap: 16px; font-size: 15px; }
.contact-channels dt { width: 72px; flex: none; color: #94a3b8; }
.contact-channels a { color: #fff; font-weight: 600; }
.contact-channels a:hover { text-decoration: underline; }
.inquiry-form { display: grid; gap: 16px; padding: 30px; border-radius: var(--radius-xl); background: var(--surface); color: var(--text); }
.inquiry-form label { display: grid; gap: 6px; font-size: 13.5px; font-weight: 700; }
.inquiry-form label em, .inquiry-form .agree em { font-style: normal; color: var(--danger); }
.inquiry-form input[type="text"], .inquiry-form input[type="email"], .inquiry-form input[type="tel"], .inquiry-form select, .inquiry-form textarea {
  width: 100%; min-height: 46px; padding: 11px 13px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  background: var(--bg); font: inherit; font-size: 15px; font-weight: 400; color: var(--text);
}
.inquiry-form textarea { resize: vertical; }
.inquiry-form input:focus-visible, .inquiry-form select:focus-visible, .inquiry-form textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.segment { border: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.segment legend { font-size: 13.5px; font-weight: 700; margin-bottom: 6px; }
.segment label { position: relative; display: block; }
.segment input { position: absolute; opacity: 0; inset: 0; }
.segment span { display: grid; gap: 2px; padding: 12px 14px; border: 1px solid var(--line-strong); border-radius: var(--radius-md); cursor: pointer; }
.segment b { font-size: 14px; }
.segment small { font-size: 12px; font-weight: 500; color: var(--muted); }
.segment input:checked + span { border: 2px solid var(--accent); padding: 11px 13px; background: var(--accent-subtle); color: var(--accent-strong); }
.segment input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.privacy-note { font-size: 13px; color: var(--muted); }
.privacy-note summary { cursor: pointer; font-weight: 700; color: var(--text); }
.privacy-note p { margin-top: 8px; }
.inquiry-form .agree { display: flex; gap: 8px; align-items: flex-start; font-weight: 500; font-size: 13.5px; color: var(--muted); }
.inquiry-form .agree input { margin-top: 4px; }
.inquiry-form .agree a { color: var(--accent-strong); text-decoration: underline; }
.inquiry-form button[disabled] { background: var(--surface-2); color: var(--muted); box-shadow: none; cursor: not-allowed; }
.form-note { font-size: 14px; color: var(--muted); padding: 12px 14px; border-radius: var(--radius-md); background: var(--accent-subtle); }
.form-note a { color: var(--accent-strong); font-weight: 600; }

/* ============ 제품 소개 ============ */
.feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 24px; }
.feature-list li {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 16px; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.feature-list .material-symbols-outlined { font-size: 21px; color: var(--accent); margin-top: 2px; }
.feature-list h4 { font-size: 15px; margin-bottom: 2px; }
.feature-list p { font-size: 13.5px; color: var(--muted); }

.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
/* 제품·플랫폼 라인업: 탭 필터 + 3열 (캔버스 보드 3 A3) */
.product-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.product-grid-3 .product-actions .btn { flex: 1 1 auto; min-width: 0; }
.product-card[hidden] { display: none; }
.product-cat { font-size: 12px; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent-strong); margin-bottom: 6px; }
.lineup-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-bottom: 40px; }
.lineup-head .section-head { margin: 0; }
.lineup-tabs { display: none; flex-wrap: wrap; gap: 8px; }
.js .lineup-tabs { display: flex; }
.lineup-tab { min-height: 44px; padding: 0 18px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--surface); font-size: 14px; font-weight: 700; color: var(--text); }
.lineup-tab:hover { border-color: var(--accent-line); background: var(--accent-subtle); }
.lineup-tab[aria-pressed="true"] { background: var(--text); border-color: var(--text); color: #fff; }
.lineup-status { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.product-card {
  display: flex; flex-direction: column; overflow: hidden;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-xl); box-shadow: var(--shadow-sm);
  transition: border-color 200ms ease-out, box-shadow 200ms ease-out, transform 200ms ease-out;
}
.product-card:hover { border-color: var(--accent-line); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.product-media { position: relative; background: var(--surface-2); }
.product-media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.product-media .badge { position: absolute; top: 14px; left: 14px; }
.product-media-icon {
  aspect-ratio: 16 / 10; display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(60% 80% at 50% 20%, rgba(79, 70, 229, 0.12), transparent 70%),
    var(--surface-2);
}
.product-media-icon .material-symbols-outlined { font-size: 64px; color: var(--accent-line); }
.product-body { display: flex; flex-direction: column; flex: 1; padding: 24px 26px 26px; }
.product-body h3 { font-size: 19px; }
.product-body .product-tagline { margin-top: 6px; font-size: 14.5px; color: var(--muted); }
.product-body .chip-row { margin-top: 16px; }
.product-spec {
  margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line);
  display: grid; gap: 6px; font-size: 13.5px; color: var(--muted);
}
.product-spec div { display: flex; gap: 10px; }
.product-spec dt { flex: none; width: 76px; font-weight: 600; color: var(--subtle); }
.product-spec dd { margin: 0; }
.product-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: auto; padding-top: 20px; }
.product-actions .btn { flex: 1; min-width: 140px; }
.price-note { font-size: 13px; color: var(--subtle); margin-top: 12px; }

/* 사양·비교 표 */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--surface); box-shadow: var(--shadow-sm); }
.spec-table { width: 100%; min-width: 880px; border-collapse: collapse; font-size: 14.5px; }
.spec-table th, .spec-table td { padding: 15px 20px; text-align: left; border-bottom: 1px solid var(--line); }
.spec-table thead th { background: var(--surface-2); font-size: 13px; font-weight: 700; letter-spacing: 0.03em; color: var(--muted); }
.spec-table tbody tr:last-child th, .spec-table tbody tr:last-child td { border-bottom: 0; }
.spec-table tbody th { font-weight: 700; white-space: nowrap; }
.spec-table td { color: var(--muted); }
.table-note { margin-top: 14px; font-size: 13.5px; color: var(--subtle); }

/* 도입 방식 3종 */
.plan-trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.plan-card {
  position: relative;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-xl); padding: 30px 28px;
  box-shadow: var(--shadow-sm);
}
.plan-card.is-featured { border-color: var(--accent-line); box-shadow: var(--shadow-md); }
.plan-card .badge { position: absolute; top: 22px; right: 22px; }
.plan-card .icon-tile { margin-bottom: 16px; }
.plan-card h3 { font-size: 19px; margin-bottom: 8px; }
.plan-card > p { font-size: 14.5px; color: var(--muted); }
.plan-card ul { margin-top: 16px; display: grid; gap: 8px; }
.plan-card ul li { display: flex; gap: 8px; align-items: flex-start; font-size: 14px; color: var(--muted); }
.plan-card ul .material-symbols-outlined { font-size: 18px; color: var(--ok); margin-top: 3px; }
.plan-card .btn { width: 100%; margin-top: 22px; }

/* ============ 스토어 ============ */
.notice-banner {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 18px 22px; margin-bottom: 48px;
  background: var(--accent-subtle); border: 1px solid var(--accent-line);
  border-radius: var(--radius-lg);
}
.notice-banner .material-symbols-outlined { color: var(--accent); margin-top: 2px; }
.notice-banner strong { display: block; font-size: 15px; margin-bottom: 2px; }
.notice-banner p { font-size: 14px; color: var(--muted); }

.step-flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.step-flow li {
  position: relative; padding: 24px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-xl); box-shadow: var(--shadow-sm);
}
.step-flow li::before {
  counter-increment: step; content: "0" counter(step);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 14px; width: 34px; height: 34px; border-radius: 10px;
  background: var(--accent-subtle); border: 1px solid var(--accent-line);
  font-size: 13px; font-weight: 700; color: var(--accent-strong);
}
.step-flow h3 { font-size: 16.5px; margin-bottom: 6px; }
.step-flow p { font-size: 13.5px; color: var(--muted); }

.biz-band {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 48px; align-items: center;
  padding: 40px; border-radius: var(--radius-xl);
  background: var(--surface); border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
.biz-band + .biz-band { margin-top: 24px; }
.biz-band h3 { font-size: clamp(20px, 2.4vw, 25px); margin: 12px 0 12px; }
.biz-band > div > p { color: var(--muted); font-size: 15px; }
.biz-band .chip-row { margin-top: 18px; }
.biz-band .hero-cta { justify-content: flex-start; margin-top: 24px; }

.faq { display: grid; gap: 12px; }
.faq details {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 0 22px;
  box-shadow: var(--shadow-sm);
}
.faq details[open] { border-color: var(--accent-line); }
.faq summary {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 18px 0; cursor: pointer; list-style: none;
  font-size: 15.5px; font-weight: 600;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "add"; font-family: "Material Symbols Outlined"; font-size: 20px; color: var(--subtle); }
.faq details[open] summary::after { content: "remove"; color: var(--accent); }
.faq details p { padding-bottom: 18px; font-size: 14.5px; color: var(--muted); }

/* ============ 푸터(잉크 다크) ============ */
.site-footer { background: var(--ink-deep); color: #cbd5e1; }
.site-footer .wordmark { color: #fff; }
.site-footer .wordmark em { color: var(--on-dark); }
.site-footer .wordmark-mark::before, .site-footer .wordmark-mark::after { background: var(--ink-deep); }
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1.4fr;
  gap: 48px; padding: 64px 24px 48px;
}
.footer-brand > p:last-child { margin-top: 16px; font-size: 14.5px; color: #94a3b8; }
.footer-col h4 {
  font-size: 12.5px; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink-subtle); margin-bottom: 18px;
}
.footer-col li { display: flex; align-items: flex-start; gap: 9px; margin-bottom: 12px; font-size: 14.5px; color: #94a3b8; }
.footer-col .material-symbols-outlined { font-size: 18px; color: #64748b; margin-top: 2px; }
.footer-col a:hover { color: #fff; }
.footer-legal {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 24px;
  padding-top: 22px; padding-bottom: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13.5px; color: var(--ink-subtle);
}
.footer-legal a { color: #94a3b8; }
.footer-legal a:hover { color: #fff; }

/* ============ 반응형 ============ */
@media (max-width: 1024px) {
  .contact-band { grid-template-columns: 1fr; padding: 48px 32px; }
  .product-grid-3 { grid-template-columns: 1fr 1fr; }
  .lineup-head { flex-direction: column; align-items: flex-start; }
  .hero-split { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { justify-self: center; max-width: 320px; }
  .tech-row { grid-template-columns: 1fr; gap: 40px; }
  .tech-row-flip .tech-copy { order: 1; }
  .tech-row-flip .tech-visual { order: 2; }
  .case-bento { grid-template-columns: 1fr 1fr; }
  .case-card-wide { grid-column: span 2; grid-row: auto; }
  .case-bento > .case-card:last-child { grid-column: span 2; }
  .case-bento > .case-card:last-child img { aspect-ratio: 21 / 9; }
  .value-trio .value-card:nth-child(2),
  .value-trio .value-card:nth-child(3) { margin-top: 0; }
  .values-grid { grid-template-columns: 1fr 1fr; }
  .step-flow { grid-template-columns: 1fr 1fr; }
  .plan-trio { grid-template-columns: 1fr; }
  .biz-band { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 768px) {
  .contact-band { padding: 36px 18px; }
  .inquiry-form { padding: 20px 16px; }
  .form-row, .segment { grid-template-columns: 1fr; }
  .criteria-grid { grid-template-columns: 1fr; }
  .criteria-grid li + li { border-left: 0; border-top: 1px solid var(--line); }
  .metrics-band ul { grid-template-columns: 1fr 1fr; }
  .metrics-band li { padding: 20px 16px; }
  .metrics-band li:nth-child(2) { border-right: 0; }
  .metrics-band li:nth-child(-n+2) { border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
  body { font-size: 16px; }
  .section { padding: 76px 0; }
  .section-tight { padding: 60px 0; }
  .gnb {
    position: fixed; inset: var(--header-h) 0 auto; z-index: 49;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: rgba(255, 255, 255, 0.98); border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    padding: 14px 24px 22px; display: none;
  }
  .gnb.open { display: flex; }
  .gnb > a:not(.btn) { padding: 12px 4px; font-size: 16px; }
  .gnb > .btn { margin-top: 10px; }
  .nav-toggle { display: block; }
  .site-header { background: rgba(255, 255, 255, 0.92); border-bottom-color: var(--line); }
  .hero { padding-bottom: 72px; }
  .hero-float-chip { right: 10px; bottom: -18px; }
  .problems-grid, .demo-grid, .case-bento, .values-grid, .value-trio,
  .target-list, .product-grid, .feature-list, .step-flow { grid-template-columns: 1fr; }
  .case-card-wide { grid-column: auto; }
  .case-bento > .case-card:last-child { grid-column: auto; }
  .case-bento > .case-card:last-child img { aspect-ratio: 16 / 9; }
  .case-card-wide img { position: static; aspect-ratio: 16 / 9; height: auto; }
  .case-card-wide .case-body { position: static; height: auto; min-height: 0; background: none; }
  .case-card-wide h3 { color: var(--text); }
  .case-card-wide .case-body p { color: var(--muted); }
  .case-card-wide .case-tags span { background: var(--accent-subtle); color: var(--accent-strong); }
  .cta-band { padding: 64px 22px; border-radius: 18px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; padding-block: 48px 36px; }
  .net-diagram { flex-direction: column; gap: 18px; padding: 30px 20px; }
  .net-link { flex: none; width: 2px; height: 56px; margin: 0; background: repeating-linear-gradient(180deg, var(--line-strong) 0 8px, transparent 8px 16px); }
  .net-link em { left: 18px; top: 50%; transform: translateY(-50%); }
  .net-packet { left: -3px; top: 0; width: 8px; height: 100%; animation: packet-v 2.4s linear infinite; }
  @keyframes packet-v { 0% { transform: translateY(0); opacity: 0; } 12% { opacity: 1; } 88% { opacity: 1; } 100% { transform: translateY(calc(100% - 8px)); opacity: 0; } }
  .biz-band { padding: 26px 22px; }
}

/* ============ 접근성: 모션 감소 ============ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .js .reveal { opacity: 1; transform: none; }
}