/* (주)신아금속플렉시블 — site styles */

:root {
  --navy-950: #0b1630;
  --navy-900: #101f42;
  --navy-800: #172b59;
  --navy-700: #1d3263;
  --navy-600: #2a4580;
  --orange-500: #f47b20;
  --orange-600: #df6510;
  --orange-100: #fff1e6;
  --steel-50: #f5f7fa;
  --steel-100: #eef1f5;
  --steel-200: #e1e6ed;
  --steel-300: #c9d1dc;
  --ink: #111a2c;
  --ink-2: #344055;
  --muted: #5f6b7e;
  --line: #e1e6ed;
  --white: #ffffff;
  --lens: #d9eef5;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(16, 31, 66, .06), 0 2px 8px rgba(16, 31, 66, .05);
  --shadow: 0 10px 30px -12px rgba(16, 31, 66, .22);
  --shadow-lg: 0 30px 60px -24px rgba(11, 22, 48, .45);

  --container: 1240px;
  --gutter: 24px;
  --header-h: 76px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 64px); -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--white);
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1em; }
h1, h2, h3, h4 { margin: 0; line-height: 1.25; letter-spacing: -0.025em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
table { border-collapse: collapse; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--orange-500); outline-offset: 2px; border-radius: 4px; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 12px; top: -60px; z-index: 200; background: var(--orange-500); color: #fff; padding: 10px 16px; border-radius: var(--radius-sm); font-weight: 700; }
.skip-link:focus { top: 12px; }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--header-h);
  color: #fff;
  transition: background .3s var(--ease), box-shadow .3s var(--ease), color .3s var(--ease);
}
.site-header.is-solid { background: rgba(255, 255, 255, .96); color: var(--ink); box-shadow: 0 1px 0 var(--line), 0 8px 24px -16px rgba(16, 31, 66, .25); backdrop-filter: saturate(1.4) blur(10px); }
.site-header .container { height: 100%; display: flex; align-items: center; gap: 28px; }

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand img { width: 42px; height: 42px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-ko { font-size: 19px; font-weight: 800; letter-spacing: -0.03em; }
.brand-en { font-size: 10.5px; font-weight: 600; letter-spacing: .08em; opacity: .7; }
.brand .mark-dark { display: none; }
.site-header.is-solid .brand .mark-light { display: none; }
.site-header.is-solid .brand .mark-dark { display: block; }

.nav { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.nav a.nav-link { padding: 10px 16px; border-radius: 999px; font-weight: 600; font-size: 16px; opacity: .88; transition: opacity .2s, background .2s; }
.nav a.nav-link:hover { opacity: 1; background: rgba(255, 255, 255, .1); }
.site-header.is-solid .nav a.nav-link:hover { background: var(--steel-100); }
.nav a.nav-link[aria-current="page"] { opacity: 1; position: relative; }
.nav a.nav-link[aria-current="page"]::after { content: ""; position: absolute; left: 16px; right: 16px; bottom: 4px; height: 2px; background: var(--orange-500); border-radius: 2px; }

.nav-call { margin-left: 10px; display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 999px; background: var(--orange-500); color: #fff; font-weight: 700; font-size: 15.5px; font-variant-numeric: tabular-nums; transition: background .2s; }
.nav-call:hover { background: var(--orange-600); }
.nav-call svg { width: 16px; height: 16px; }

.menu-toggle { display: none; margin-left: auto; width: 44px; height: 44px; border: 0; background: transparent; border-radius: 10px; cursor: pointer; position: relative; }
.menu-toggle span { position: absolute; left: 11px; right: 11px; height: 2px; background: currentColor; border-radius: 2px; transition: transform .3s var(--ease), opacity .2s; }
.menu-toggle span:nth-child(1) { top: 15px; }
.menu-toggle span:nth-child(2) { top: 21px; }
.menu-toggle span:nth-child(3) { top: 27px; }
.menu-open .menu-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-open .menu-toggle span:nth-child(2) { opacity: 0; }
.menu-open .menu-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 52px; padding: 0 26px; border-radius: 999px; font-weight: 700; font-size: 16.5px; border: 1.5px solid transparent; cursor: pointer; transition: background .2s, color .2s, border-color .2s, transform .2s var(--ease); }
.btn svg { width: 18px; height: 18px; transition: transform .2s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn-primary { background: var(--orange-500); color: #fff; }
.btn-primary:hover { background: var(--orange-600); }
.btn-ghost { border-color: rgba(255, 255, 255, .4); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .08); border-color: #fff; }
.btn-outline { border-color: var(--navy-700); color: var(--navy-700); }
.btn-outline:hover { background: var(--navy-700); color: #fff; }
.btn-white { background: #fff; color: var(--navy-800); }
.btn-white:hover { background: var(--steel-100); }

.link-arrow { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: var(--navy-700); }
.link-arrow svg { width: 18px; height: 18px; transition: transform .2s var(--ease); }
.link-arrow:hover svg { transform: translateX(4px); }

/* ---------- Hero (home) ---------- */
.hero {
  position: relative; overflow: hidden; isolation: isolate;
  min-height: min(100vh, 900px);
  padding: calc(var(--header-h) + 64px) 0 0;
  background: var(--navy-900);
  color: #fff;
  display: flex; flex-direction: column;
}
.hero-bg { position: absolute; inset: 0; z-index: -2; background: url("../img/factory-line.jpg") center / cover no-repeat; opacity: .22; filter: grayscale(.6) contrast(1.1); }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(1100px 600px at 78% 40%, rgba(42, 69, 128, .55), transparent 70%), linear-gradient(90deg, var(--navy-950) 0%, rgba(16, 31, 66, .92) 45%, rgba(16, 31, 66, .55) 100%); }
.hero > .container { flex: 1; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 48px; }
.hero-copy { padding-bottom: 40px; }
.eyebrow { display: inline-flex; align-items: center; gap: 12px; font-size: 13.5px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--orange-500); }
.eyebrow::before { content: ""; width: 28px; height: 2px; background: currentColor; }
.hero h1 { margin: 22px 0 24px; font-size: clamp(38px, 5.4vw, 68px); font-weight: 800; line-height: 1.16; letter-spacing: -0.035em; }
.hero h1 em { font-style: normal; color: var(--orange-500); }
.hero-lead { max-width: 560px; font-size: clamp(17px, 1.5vw, 19px); color: rgba(255, 255, 255, .78); margin-bottom: 36px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.hero-visual { position: relative; display: grid; place-items: center; padding-bottom: 40px; }
.lens { position: relative; width: min(460px, 100%); aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle at 35% 30%, #f3fbfe, var(--lens) 60%, #b9dbe7); box-shadow: 0 0 0 10px rgba(255, 255, 255, .06), 0 0 0 22px rgba(255, 255, 255, .03), var(--shadow-lg); overflow: hidden; display: grid; place-items: center; }
.lens img { width: 92%; mix-blend-mode: multiply; transform: translateY(2%); }
.lens-tag { position: absolute; display: flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px; background: rgba(255, 255, 255, .95); color: var(--navy-800); font-size: 13.5px; font-weight: 700; box-shadow: var(--shadow); white-space: nowrap; }
.lens-tag i { width: 8px; height: 8px; border-radius: 50%; background: var(--orange-500); }
.lens-tag.t1 { top: 14%; left: -2%; }
.lens-tag.t2 { bottom: 22%; right: -4%; }

.hero-creds { position: relative; border-top: 1px solid rgba(255, 255, 255, .12); background: rgba(11, 22, 48, .55); backdrop-filter: blur(8px); }
.hero-creds ul { display: grid; grid-template-columns: repeat(4, 1fr); }
.hero-creds li { display: flex; align-items: center; gap: 14px; padding: 22px 20px; border-left: 1px solid rgba(255, 255, 255, .1); font-size: 15px; line-height: 1.4; color: rgba(255, 255, 255, .85); }
.hero-creds li:first-child { border-left: 0; padding-left: 0; }
.hero-creds strong { display: block; color: #fff; font-size: 16px; }
.hero-creds svg { flex-shrink: 0; width: 34px; height: 34px; color: var(--orange-500); }

/* corrugation line motif */
.wave { display: block; width: 100%; height: 14px; color: var(--orange-500); }

/* ---------- Page hero (sub pages) ---------- */
.page-hero { position: relative; isolation: isolate; overflow: hidden; padding: calc(var(--header-h) + 72px) 0 64px; background: var(--navy-900); color: #fff; }
.page-hero .hero-bg { opacity: .18; }
.page-hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, var(--navy-950), rgba(16, 31, 66, .75)); }
.breadcrumb { display: flex; gap: 8px; font-size: 14px; color: rgba(255, 255, 255, .6); margin-bottom: 14px; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span[aria-hidden] { opacity: .5; }
.page-hero h1 { font-size: clamp(34px, 4.6vw, 54px); font-weight: 800; letter-spacing: -0.035em; }
.page-hero p { margin: 14px 0 0; max-width: 640px; color: rgba(255, 255, 255, .75); font-size: 18px; }
.page-hero .wave { position: absolute; left: 0; right: 0; bottom: 0; opacity: .9; }

/* ---------- Sections ---------- */
.section { padding: 112px 0; }
.section-sm { padding: 80px 0; }
.section-soft { background: var(--steel-50); }
.section-dark { background: var(--navy-900); color: #fff; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 56px; }
.section-head > div { max-width: 720px; }
.section-head h2, .h2 { margin-top: 14px; font-size: clamp(30px, 3.6vw, 44px); font-weight: 800; }
.section-head p, .lead { margin: 16px 0 0; font-size: 18px; color: var(--muted); }
.section-dark .section-head p, .section-dark .lead { color: rgba(255, 255, 255, .7); }
.h3 { font-size: clamp(22px, 2.2vw, 28px); font-weight: 800; }

/* ---------- Product cards ---------- */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.product-card { position: relative; display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s; }
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.product-card .media { aspect-ratio: 4 / 3; background: linear-gradient(160deg, #fff, var(--steel-100)); display: grid; place-items: center; padding: 22px; }
.product-card .media img { max-height: 100%; width: auto; object-fit: contain; mix-blend-mode: multiply; transition: transform .5s var(--ease); }
.product-card:hover .media img { transform: scale(1.04); }
.product-card .body { flex: 1; display: flex; flex-direction: column; padding: 24px 24px 26px; }
.tag { align-self: flex-start; display: inline-block; padding: 4px 10px; border-radius: 999px; background: var(--orange-100); color: var(--orange-600); font-size: 12.5px; font-weight: 700; margin-bottom: 12px; }
.product-card h3 { font-size: 21px; font-weight: 800; }
.product-card .en { font-size: 13px; color: var(--muted); margin-top: 4px; letter-spacing: 0; }
.product-card p { margin: 12px 0 18px; color: var(--ink-2); font-size: 15.5px; line-height: 1.65; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; }
.chip { padding: 4px 10px; border-radius: 6px; background: var(--steel-100); color: var(--navy-700); font-size: 13px; font-weight: 700; font-variant-numeric: tabular-nums; }
.product-card .stretched::after { content: ""; position: absolute; inset: 0; }

.also-line { margin-top: 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 20px 26px; border-radius: var(--radius); background: var(--steel-50); border: 1px dashed var(--steel-300); color: var(--ink-2); font-size: 16px; }
.also-line strong { color: var(--ink); }

/* featured set (배관용 호스 + V-Check 보호관) */
.set-card { position: relative; display: grid; grid-template-columns: 1fr 1.1fr; align-items: center; gap: 32px; margin-bottom: 20px; padding: 40px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: linear-gradient(120deg, #fff 45%, var(--steel-100)); transition: box-shadow .3s var(--ease), border-color .3s; }
.set-card:hover { box-shadow: var(--shadow); border-color: transparent; }
.set-card h3 { font-size: clamp(24px, 2.4vw, 30px); font-weight: 800; }
.set-card .en { font-size: 13px; color: var(--muted); margin-top: 4px; }
.set-card p { margin: 14px 0 22px; color: var(--ink-2); }
.set-card .stretched::after { content: ""; position: absolute; inset: 0; }
.set-parts { display: flex; align-items: stretch; gap: 10px; }
.set-parts .part { flex: 1; padding: 14px 16px; border-radius: var(--radius-sm); background: #fff; border: 1px solid var(--line); line-height: 1.45; }
.set-parts b { display: block; font-size: 16px; }
.set-parts span { font-size: 13.5px; color: var(--muted); }
.set-parts .plus { align-self: center; flex-shrink: 0; width: 30px; height: 30px; border-radius: 50%; background: var(--orange-500); color: #fff; font-weight: 800; display: grid; place-items: center; }
.set-media { display: grid; gap: 8px; justify-items: center; }
.set-media img { mix-blend-mode: multiply; }
.set-media img:first-child { max-height: 260px; width: auto; }
.set-media .strip { width: 100%; }
.prod-head .set-media { gap: 14px; }
.prod-head .set-media img:first-child { max-height: 230px; }
.prod-head .set-media .strip { width: 100%; max-height: none; }
.set-cols { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.set-cols::after { content: "+"; position: absolute; left: 50%; top: 30px; transform: translateX(-50%); width: 34px; height: 34px; border-radius: 50%; background: var(--orange-500); color: #fff; font-weight: 800; font-size: 20px; display: grid; place-items: center; box-shadow: 0 0 0 6px #fff; }
.set-col { display: flex; flex-direction: column; gap: 18px; min-width: 0; padding: 28px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: #fff; }
.set-col-head { display: flex; align-items: flex-start; gap: 14px; }
.set-col-head .num { flex-shrink: 0; width: 34px; height: 34px; border-radius: 50%; background: var(--navy-700); color: #fff; font-weight: 800; display: grid; place-items: center; }
.set-col-head h3 { font-size: 20px; font-weight: 800; }
.set-col-head small { display: block; margin-top: 2px; color: var(--muted); font-size: 14px; }
.set-col .checks { margin-top: 0; }
.set-col .checks li { font-size: 15.5px; }
.set-col .spec-table { min-width: 420px; font-size: 14.5px; }
.set-col .spec-table th, .set-col .spec-table td { padding: 11px 10px; }
.set-col .table-note { margin-top: -6px; }
.acc .acc-body .table-wrap { margin-top: 4px; }
.product-grid.two { grid-template-columns: repeat(2, 1fr); }
.product-grid.two .media { aspect-ratio: 16 / 7; }

/* home: process condensed next to the photo */
.process-split { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; }
.process-split .process-photo { aspect-ratio: 4 / 3; }
.step-list { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 20px; margin: 28px 0 28px; }
.step-list li { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: var(--radius-sm); background: #fff; border: 1px solid var(--line); font-weight: 600; font-size: 15.5px; }
.step-list b { font-size: 13px; font-weight: 800; color: var(--orange-500); font-variant-numeric: tabular-nums; }
.step-list li.chk { background: var(--navy-800); border-color: var(--navy-800); color: #fff; }

/* ---------- Anatomy ---------- */
.anatomy { display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center; }
.anatomy-figure { position: relative; border-radius: var(--radius-lg); background: radial-gradient(circle at 40% 40%, #f5fbfd, var(--lens)); padding: 36px; }
.anatomy-figure img { width: 100%; mix-blend-mode: multiply; }
.anatomy-figure .pins { position: relative; }
.pin { position: absolute; width: 30px; height: 30px; margin: -15px 0 0 -15px; border-radius: 50%; background: var(--orange-500); color: #fff; font-size: 14px; font-weight: 800; display: grid; place-items: center; box-shadow: 0 0 0 5px rgba(244, 123, 32, .25); }
.parts-list { counter-reset: part; display: grid; gap: 4px; margin-top: 32px; }
.parts-list li { display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.parts-list li::before { counter-increment: part; content: counter(part); width: 30px; height: 30px; border-radius: 50%; background: var(--navy-700); color: #fff; display: grid; place-items: center; font-size: 14px; font-weight: 800; }
.parts-list b { font-weight: 700; }
.parts-list span { font-size: 14px; color: var(--muted); }
.parts-list code { font-family: inherit; font-size: 13.5px; font-weight: 700; color: var(--navy-700); background: var(--steel-100); padding: 4px 10px; border-radius: 6px; }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255, 255, 255, .14); }
.stat { padding: 36px 28px 8px 0; }
.stat + .stat { padding-left: 28px; border-left: 1px solid rgba(255, 255, 255, .14); }
.stat-num { font-size: clamp(40px, 4.6vw, 60px); font-weight: 800; letter-spacing: -0.04em; color: var(--orange-500); line-height: 1.05; font-variant-numeric: tabular-nums; }
.stat-num small { font-size: .45em; margin-left: 4px; letter-spacing: 0; color: #fff; }
.stat h3 { margin: 16px 0 8px; font-size: 18px; font-weight: 700; }
.stat p { margin: 0; color: rgba(255, 255, 255, .68); font-size: 15.5px; line-height: 1.6; }
.source-note { margin-top: 36px; font-size: 13.5px; color: rgba(255, 255, 255, .45); }

/* ---------- Process ---------- */
.process-photo { position: relative; border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 21 / 8; background: var(--navy-800); }
.process-photo img { width: 100%; height: 100%; object-fit: cover; }
.process-photo figcaption { position: absolute; left: 24px; bottom: 20px; padding: 8px 14px; border-radius: 999px; background: rgba(11, 22, 48, .7); color: #fff; font-size: 13.5px; font-weight: 600; backdrop-filter: blur(6px); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 24px; counter-reset: step; }
.step { position: relative; padding: 26px 24px 24px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
.step-no { font-size: 13px; font-weight: 800; letter-spacing: .08em; color: var(--orange-500); }
.step h3 { margin: 8px 0 8px; font-size: 18.5px; font-weight: 800; }
.step p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.6; }
.step.is-check { background: var(--navy-800); border-color: var(--navy-800); color: #fff; }
.step.is-check p { color: rgba(255, 255, 255, .7); }
.step.is-check .step-no::after { content: " · 검사"; color: rgba(255, 255, 255, .55); }

/* ---------- Certificates ---------- */
.cert-rail { display: grid; grid-auto-flow: column; grid-auto-columns: calc((100% - 5 * 18px) / 6); gap: 18px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 4px 4px 18px; margin: 0 -4px; scrollbar-width: thin; }
.cert-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 22px; }
.cert { scroll-snap-align: start; text-align: left; display: flex; flex-direction: column; background: none; border: 0; padding: 0; cursor: zoom-in; }
.cert .thumb { aspect-ratio: 3 / 4; border-radius: var(--radius-sm); overflow: hidden; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm); transition: transform .3s var(--ease), box-shadow .3s var(--ease); }
.cert .thumb img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.cert:hover .thumb { transform: translateY(-4px); box-shadow: var(--shadow); }
.cert b { display: block; margin-top: 14px; font-size: 15.5px; line-height: 1.4; font-weight: 700; }
.cert small { display: block; margin-top: 4px; color: var(--muted); font-size: 13.5px; line-height: 1.5; }
.section-dark .cert small { color: rgba(255, 255, 255, .6); }

/* ---------- CTA band ---------- */
.cta-band { position: relative; overflow: hidden; background: var(--orange-500); color: #fff; }
.cta-band .container { display: flex; align-items: center; justify-content: space-between; gap: 40px; padding-top: 72px; padding-bottom: 72px; }
.cta-band h2 { font-size: clamp(26px, 3vw, 38px); font-weight: 800; }
.cta-band p { margin: 12px 0 0; font-size: 17.5px; color: rgba(255, 255, 255, .88); }
.cta-phone { display: block; font-size: clamp(30px, 3.6vw, 46px); font-weight: 800; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; line-height: 1.1; }
.cta-side { text-align: right; flex-shrink: 0; }
.cta-side small { display: block; margin-top: 8px; font-size: 15px; opacity: .85; }
.cta-side .btn { margin-top: 18px; }
.cta-band .ring-deco { position: absolute; right: -80px; top: -120px; width: 380px; opacity: .12; pointer-events: none; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-950); color: rgba(255, 255, 255, .62); font-size: 14.5px; }
.site-footer .container { padding-top: 64px; padding-bottom: 40px; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; padding-bottom: 40px; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.footer-brand { color: #fff; }
.footer-top h4 { color: #fff; font-size: 15px; margin-bottom: 14px; letter-spacing: 0; }
.footer-top li { margin-bottom: 8px; }
.footer-top a:hover { color: #fff; }
.footer-info { margin-top: 20px; line-height: 1.9; }
.footer-info p { margin: 0; }
.footer-info span + span::before { content: "·"; margin: 0 8px; opacity: .5; }
.footer-bottom { padding-top: 24px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px; color: rgba(255, 255, 255, .42); }

/* ---------- Sub nav (products) ---------- */
.subnav { position: sticky; top: var(--header-h); z-index: 50; background: rgba(255, 255, 255, .96); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.subnav ul { position: relative; display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; padding: 10px 0; }
.subnav ul::-webkit-scrollbar { display: none; }
.subnav a { display: block; white-space: nowrap; padding: 9px 16px; border-radius: 999px; font-size: 15px; font-weight: 600; color: var(--muted); transition: background .2s, color .2s; }
.subnav a:hover { color: var(--ink); background: var(--steel-100); }
.subnav a.is-active { background: var(--navy-700); color: #fff; }

/* ---------- Product detail ---------- */
.prod { padding: 96px 0; border-bottom: 1px solid var(--line); }
.prod:last-of-type { border-bottom: 0; }
.prod-head { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; margin-bottom: 56px; }
.prod-head .media { border-radius: var(--radius-lg); background: linear-gradient(160deg, #fff, var(--steel-100)); border: 1px solid var(--line); padding: 32px; display: grid; place-items: center; min-height: 320px; }
.prod-head .media img { mix-blend-mode: multiply; max-height: 340px; width: auto; }
.prod-head .media.wide img { width: 100%; max-height: none; }
.prod-head h2 { margin: 14px 0 6px; font-size: clamp(28px, 3.2vw, 40px); font-weight: 800; }
.prod-head .en { color: var(--muted); font-size: 15px; margin-bottom: 20px; }
.prod-head p { color: var(--ink-2); }
.checks { display: grid; gap: 10px; margin-top: 22px; }
.checks li { position: relative; padding-left: 30px; color: var(--ink-2); }
.checks li::before { content: ""; position: absolute; left: 0; top: .42em; width: 18px; height: 18px; border-radius: 50%; background: var(--orange-100) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='none' stroke='%23df6510' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 10.5l3.2 3L15 7'/%3E%3C/svg%3E") center / 14px no-repeat; }

.block { margin-top: 56px; }
.block-title { display: flex; align-items: baseline; gap: 12px; margin-bottom: 20px; font-size: 21px; font-weight: 800; }
.block-title small { font-size: 14px; color: var(--muted); font-weight: 500; letter-spacing: 0; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.spec-table { width: 100%; min-width: 560px; font-size: 15.5px; font-variant-numeric: tabular-nums; }
.spec-table th, .spec-table td { padding: 14px 18px; text-align: center; border-bottom: 1px solid var(--line); }
.spec-table thead th { background: var(--navy-800); color: #fff; font-weight: 700; font-size: 14.5px; line-height: 1.4; }
.spec-table thead th small { display: block; font-weight: 500; opacity: .7; font-size: 12.5px; }
.spec-table tbody th { font-weight: 800; color: var(--navy-700); background: var(--steel-50); }
.spec-table tbody tr:last-child > * { border-bottom: 0; }
.spec-table td.left, .spec-table th.left { text-align: left; }
.spec-table .merge { background: var(--orange-100); color: var(--orange-600); font-weight: 800; }
.table-note { margin: 10px 2px 0; font-size: 14px; color: var(--muted); }

.diagram { border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; padding: 20px; }
.diagram img { width: 100%; }

.parts-strip { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; padding: 22px; margin-bottom: 16px; }
.parts-strip img { width: 100%; max-width: 760px; margin: 0 auto; }

.step-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step-card { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: #fff; }
.step-card img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; }
.step-card p { margin: 0; padding: 14px 18px 16px; font-size: 15.5px; font-weight: 600; display: flex; gap: 12px; align-items: baseline; }
.step-card p b { color: var(--orange-500); font-weight: 800; font-variant-numeric: tabular-nums; }

.fit-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.fit { border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; background: #fff; display: flex; flex-direction: column; }
.fit .ph { height: 96px; display: grid; place-items: center; margin-bottom: 16px; background: var(--steel-50); border-radius: var(--radius-sm); }
.fit .ph img { max-height: 76px; width: auto; mix-blend-mode: multiply; }
.fit b { font-size: 16.5px; }
.fit small { color: var(--muted); font-size: 13px; }
.fit .sizes { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }

.callout { display: flex; gap: 16px; align-items: flex-start; padding: 22px 24px; border-radius: var(--radius); background: var(--steel-50); border-left: 4px solid var(--orange-500); color: var(--ink-2); font-size: 16px; }
.callout svg { flex-shrink: 0; width: 22px; height: 22px; color: var(--orange-500); margin-top: 3px; }
.callout p:last-child { margin: 0; }

.acc { border-top: 1px solid var(--line); }
.acc details { border-bottom: 1px solid var(--line); }
.acc summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 22px 4px; font-size: 18px; font-weight: 700; }
.acc summary::-webkit-details-marker { display: none; }
.acc summary small { display: block; font-size: 14px; font-weight: 500; color: var(--muted); margin-top: 4px; }
.acc summary .plus { flex-shrink: 0; width: 32px; height: 32px; border-radius: 50%; background: var(--steel-100); position: relative; transition: transform .3s var(--ease), background .2s; }
.acc summary .plus::before, .acc summary .plus::after { content: ""; position: absolute; left: 50%; top: 50%; width: 12px; height: 2px; margin: -1px 0 0 -6px; background: var(--navy-700); border-radius: 2px; }
.acc summary .plus::after { transform: rotate(90deg); }
.acc details[open] summary .plus { transform: rotate(45deg); background: var(--orange-100); }
.acc .acc-body { padding: 0 4px 26px; color: var(--ink-2); }
.acc .acc-body ol { counter-reset: n; display: grid; gap: 10px; }
.acc .acc-body ol li { position: relative; padding-left: 34px; }
.acc .acc-body ol li::before { counter-increment: n; content: counter(n); position: absolute; left: 0; top: 2px; width: 24px; height: 24px; border-radius: 6px; background: var(--steel-100); color: var(--navy-700); font-size: 13px; font-weight: 800; display: grid; place-items: center; }

/* ---------- Company ---------- */
.greeting { display: grid; grid-template-columns: .9fr 1.1fr; gap: 72px; align-items: start; }
.greeting-visual { position: sticky; top: calc(var(--header-h) + 32px); border-radius: var(--radius-lg); overflow: hidden; background: linear-gradient(160deg, #fff, var(--steel-100)); border: 1px solid var(--line); }
.greeting-visual img { width: 100%; mix-blend-mode: multiply; }
.greeting h2 { font-size: clamp(28px, 3.2vw, 40px); font-weight: 800; margin: 14px 0 28px; line-height: 1.35; }
.greeting h2 em { font-style: normal; color: var(--orange-500); }
.greeting-body p { color: var(--ink-2); font-size: 17.5px; line-height: 1.9; }
.sign { margin-top: 36px; display: flex; align-items: baseline; gap: 14px; color: var(--muted); }
.sign strong { font-size: 24px; color: var(--ink); letter-spacing: .3em; font-weight: 800; }

.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.value { padding: 34px 30px; border-radius: var(--radius-lg); background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .12); }
.value-no { font-size: 13px; font-weight: 800; color: var(--orange-500); letter-spacing: .1em; }
.value h3 { margin: 14px 0 12px; font-size: 23px; font-weight: 800; }
.value p { margin: 0; color: rgba(255, 255, 255, .7); font-size: 16px; }

.overview { display: grid; grid-template-columns: 1fr 1fr; gap: 0 48px; border-top: 2px solid var(--navy-700); }
.overview div { display: grid; grid-template-columns: 120px 1fr; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.overview dt { font-weight: 700; color: var(--muted); font-size: 15.5px; }
.overview dd { margin: 0; font-weight: 600; }

.timeline { position: relative; display: grid; gap: 0; }
.tl-year { display: grid; grid-template-columns: 180px 1fr; gap: 40px; padding: 36px 0; border-top: 1px solid var(--line); }
.tl-year:first-child { border-top: 0; padding-top: 0; }
.tl-year h3 { font-size: 40px; font-weight: 800; color: var(--navy-700); letter-spacing: -0.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.tl-year:first-child h3 { color: var(--orange-500); }
.tl-items { display: grid; gap: 14px; }
.tl-items li { display: grid; grid-template-columns: 56px 1fr; gap: 16px; font-size: 17px; }
.tl-items li > span { font-weight: 800; color: var(--muted); font-variant-numeric: tabular-nums; }
.tl-items li small { display: block; color: var(--muted); font-size: 14.5px; }

/* ---------- Quality ---------- */
.q-intro { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.iso-card { border-radius: var(--radius-lg); background: var(--navy-800); color: #fff; padding: 36px; position: relative; overflow: hidden; }
.iso-card .big { font-size: clamp(36px, 4vw, 52px); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; }
.iso-card .big span { color: var(--orange-500); }
.iso-card dl { margin: 24px 0 0; display: grid; gap: 10px; font-size: 15.5px; }
.iso-card dl div { display: grid; grid-template-columns: 96px 1fr; gap: 12px; padding-top: 10px; border-top: 1px solid rgba(255, 255, 255, .14); }
.iso-card dt { color: rgba(255, 255, 255, .55); }
.iso-card dd { margin: 0; }
.iso-card img { position: absolute; right: -40px; bottom: -40px; width: 200px; opacity: .1; }

.check-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.check-card { border-radius: var(--radius-lg); border: 1px solid var(--line); background: #fff; padding: 30px; }
.check-card h3 { font-size: 20px; font-weight: 800; margin: 14px 0 10px; }
.check-card p { color: var(--ink-2); font-size: 15.5px; margin-bottom: 14px; }
.check-card .ico { width: 48px; height: 48px; border-radius: 12px; background: var(--orange-100); color: var(--orange-600); display: grid; place-items: center; }
.check-card .ico svg { width: 26px; height: 26px; }
.mini-list { display: grid; gap: 6px; font-size: 14.5px; color: var(--ink-2); }
.mini-list li { padding-left: 14px; position: relative; }
.mini-list li::before { content: ""; position: absolute; left: 0; top: .7em; width: 5px; height: 5px; border-radius: 50%; background: var(--steel-300); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.contact-card { border-radius: var(--radius-lg); border: 1px solid var(--line); padding: 32px 30px; background: #fff; display: flex; flex-direction: column; gap: 6px; }
.contact-card.primary { background: var(--navy-800); color: #fff; border-color: var(--navy-800); }
.contact-card .label { font-size: 14px; font-weight: 700; color: var(--muted); letter-spacing: .04em; }
.contact-card.primary .label { color: var(--orange-500); }
.contact-card .value-lg { font-size: clamp(24px, 2.6vw, 32px); font-weight: 800; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; line-height: 1.25; }
.contact-card .value-md { font-size: 18px; font-weight: 700; line-height: 1.5; }
.contact-card .hint { font-size: 14.5px; color: var(--muted); margin-top: auto; padding-top: 14px; }
.contact-card.primary .hint { color: rgba(255, 255, 255, .65); }
.copy-btn { align-self: flex-start; margin-top: 14px; display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 7px 14px; font-size: 14px; font-weight: 600; cursor: pointer; }
.copy-btn:hover { border-color: var(--navy-700); }

.inquiry-types { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.inquiry { padding: 26px 24px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
.inquiry h3 { font-size: 18px; font-weight: 800; margin-bottom: 8px; }
.inquiry p { margin: 0; color: var(--muted); font-size: 15px; }

.map-wrap { display: grid; grid-template-columns: 1.5fr 1fr; gap: 0; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); background: #fff; }
.map-wrap iframe { width: 100%; height: 100%; min-height: 440px; border: 0; display: block; background: var(--steel-100); }
.map-info { padding: 40px 36px; display: flex; flex-direction: column; gap: 22px; }
.map-info h3 { font-size: 22px; font-weight: 800; }
.map-info dl { margin: 0; display: grid; gap: 16px; }
.map-info dt { font-size: 14px; font-weight: 700; color: var(--muted); }
.map-info dd { margin: 4px 0 0; font-weight: 600; }
.map-links { display: flex; gap: 8px; flex-wrap: wrap; margin-top: auto; }
.map-links a { flex: 1; min-width: 120px; text-align: center; padding: 12px 14px; border-radius: 10px; font-weight: 700; font-size: 15px; border: 1px solid var(--line); transition: border-color .2s, background .2s; }
.map-links a:hover { border-color: var(--navy-700); background: var(--steel-50); }

/* ---------- Lightbox ---------- */
.lightbox { padding: 0; border: 0; background: transparent; max-width: min(92vw, 820px); max-height: 94vh; overflow: visible; }
.lightbox::backdrop { background: rgba(8, 14, 30, .86); backdrop-filter: blur(4px); }
.lightbox figure { margin: 0; display: flex; flex-direction: column; align-items: center; }
.lightbox img { max-height: 82vh; width: auto; border-radius: 10px; background: #fff; box-shadow: var(--shadow-lg); }
.lightbox figcaption { margin-top: 14px; color: #fff; text-align: center; font-size: 15.5px; }
.lightbox figcaption small { display: block; opacity: .65; font-size: 13.5px; margin-top: 2px; }
.lb-btn { position: fixed; width: 48px; height: 48px; border-radius: 50%; border: 0; background: rgba(255, 255, 255, .12); color: #fff; cursor: pointer; display: grid; place-items: center; transition: background .2s; }
.lb-btn:hover { background: rgba(255, 255, 255, .24); }
.lb-btn svg { width: 22px; height: 22px; }
.lb-close { top: 20px; right: 20px; }
.lb-prev { left: 20px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 20px; top: 50%; transform: translateY(-50%); }

/* ---------- Reveal ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  * { transition-duration: 0s !important; }
}

/* ---------- 404 ---------- */
.notfound { min-height: 100vh; display: grid; place-items: center; text-align: center; background: var(--navy-900); color: #fff; padding: 120px 24px; }
.notfound h1 { font-size: clamp(64px, 12vw, 140px); font-weight: 800; color: var(--orange-500); line-height: 1; letter-spacing: -0.05em; }
.notfound p { color: rgba(255, 255, 255, .72); margin: 18px 0 32px; font-size: 18px; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: repeat(4, 1fr); }
  .cert-rail { grid-auto-columns: calc((100% - 3 * 18px) / 4); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { padding-left: 0; border-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid rgba(255, 255, 255, .14); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .fit-grid { grid-template-columns: repeat(3, 1fr); }
  .inquiry-types { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 920px) {
  :root { --header-h: 64px; }
  body { font-size: 16px; }
  .menu-toggle { display: block; }
  .nav { position: fixed; inset: var(--header-h) 0 0 0; flex-direction: column; align-items: stretch; gap: 0; padding: 16px 20px 32px; background: var(--navy-900); color: #fff; transform: translateX(100%); visibility: hidden; transition: transform .35s var(--ease), visibility .35s; overflow-y: auto; }
  .menu-open .nav { transform: none; visibility: visible; }
  /* backdrop-filter would make the header the containing block of the fixed nav panel */
  .menu-open .site-header { background: var(--navy-900); color: #fff; box-shadow: none; backdrop-filter: none; }
  .menu-open .site-header .brand .mark-light { display: block; }
  .menu-open .site-header .brand .mark-dark { display: none; }
  .nav a.nav-link { padding: 18px 4px; border-radius: 0; font-size: 21px; font-weight: 700; border-bottom: 1px solid rgba(255, 255, 255, .1); opacity: 1; }
  .nav a.nav-link:hover, .site-header.is-solid .nav a.nav-link:hover { background: none; }
  .nav a.nav-link[aria-current="page"] { color: var(--orange-500); }
  .nav a.nav-link[aria-current="page"]::after { display: none; }
  .nav-call { margin: 28px 0 0; justify-content: center; min-height: 54px; font-size: 18px; }
  .brand img { width: 36px; height: 36px; }
  .brand-ko { font-size: 17px; }
  .brand-en { font-size: 9.5px; }

  .hero { min-height: 0; padding-top: calc(var(--header-h) + 48px); }
  .hero > .container { grid-template-columns: 1fr; gap: 8px; }
  .hero-copy { padding-bottom: 8px; }
  .hero-visual { padding-bottom: 48px; }
  .lens { width: min(340px, 82vw); }
  .hero-creds ul { grid-template-columns: repeat(2, 1fr); }
  .hero-creds li { padding: 18px 14px; font-size: 14px; }
  .hero-creds li:nth-child(odd) { border-left: 0; padding-left: 0; }
  .hero-creds li:nth-child(n+3) { border-top: 1px solid rgba(255, 255, 255, .1); }
  .hero-creds svg { width: 28px; height: 28px; }

  .section { padding: 80px 0; }
  .section-sm { padding: 64px 0; }
  .section-head { flex-direction: column; align-items: flex-start; margin-bottom: 40px; }
  .anatomy, .prod-head, .greeting, .q-intro, .process-split, .set-card, .set-cols { grid-template-columns: 1fr; gap: 36px; }
  .set-card { padding: 28px 24px; }
  .set-card .set-media { order: -1; }
  .set-cols { gap: 20px; }
  .set-cols::after { display: none; }
  .set-col { padding: 22px 18px; }
  .greeting-visual { position: static; max-width: 420px; }
  .cta-band .container { flex-direction: column; align-items: flex-start; }
  .cta-side { text-align: left; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-top > :first-child { grid-column: 1 / -1; }
  .values, .check-cards, .contact-grid { grid-template-columns: 1fr; }
  .overview { grid-template-columns: 1fr; }
  .tl-year { grid-template-columns: 1fr; gap: 18px; }
  .tl-year h3 { font-size: 32px; }
  .map-wrap { grid-template-columns: 1fr; }
  .map-wrap iframe { min-height: 320px; }
  .step-grid { grid-template-columns: repeat(2, 1fr); }
  .process-photo { aspect-ratio: 16 / 9; }
  .prod { padding: 72px 0; }
  .prod-head { margin-bottom: 40px; }
  .prod-head .media { min-height: 0; }
}

@media (max-width: 600px) {
  :root { --gutter: 16px; }
  .hero h1 { font-size: 36px; }
  .hero-actions .btn { flex: 1 1 100%; }
  .lens-tag { font-size: 12px; padding: 6px 11px; }
  .lens-tag.t1 { left: 0; }
  .lens-tag.t2 { right: 0; }
  .product-grid, .product-grid.two { grid-template-columns: 1fr; }
  .set-parts { flex-direction: column; }
  .step-list { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .stat, .stat + .stat { padding: 28px 0 4px; border-left: 0; }
  .stat + .stat { border-top: 1px solid rgba(255, 255, 255, .14); }
  .steps { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .cert-rail { grid-auto-columns: 62%; }
  .fit-grid { grid-template-columns: repeat(2, 1fr); }
  .step-grid { grid-template-columns: 1fr; }
  .inquiry-types { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .overview div { grid-template-columns: 96px 1fr; }
  .tl-items li { grid-template-columns: 44px 1fr; font-size: 16px; }
  .lb-prev, .lb-next { top: auto; bottom: 20px; transform: none; }
  .anatomy-figure { padding: 20px; }
  .pin { width: 26px; height: 26px; margin: -13px 0 0 -13px; font-size: 13px; }
  .map-info { padding: 28px 22px; }
}