:root {
  --blue: #1d7fc4;
  --blue-dark: #0f4f80;
  --navy: #0b2a45;
  --green: #7dba2f;
  --gold: #b5562e;
  --gold-soft: #fbf1e4;
  --ink: #1b2430;
  --muted: #5d6b7a;
  --line: #e2e8ef;
  --tint: #f4f8fb;
  --bg: #ffffff;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(15, 45, 80, .08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Pretendard, -apple-system, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  line-height: 1.65;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.3; margin: 0; }
.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 16px; }
[class$="-grid"] > * { min-width: 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

/* ---------- 버튼 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 24px; border-radius: 999px; font-weight: 600; font-size: 15px;
  border: 1.5px solid transparent; cursor: pointer; font-family: inherit;
  transition: transform .15s, background .15s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); }
.btn-ghost { border-color: rgba(255,255,255,.6); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.btn-gold { background: var(--gold); color: #fff; }
.btn-gold:hover { background: #93441f; }

/* ---------- 헤더 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.94); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.logo { width: 46px; height: 36px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { color: var(--blue); font-size: 19px; letter-spacing: -.2px; }
.brand-text small { color: var(--muted); font-size: 12px; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { color: var(--ink); padding: 8px 12px; border-radius: 8px; font-weight: 500; font-size: 15px; }
.nav a:hover { background: var(--tint); text-decoration: none; }
.nav-new em { font-style: normal; font-size: 10px; font-weight: 700; color: #fff; background: var(--gold); border-radius: 4px; padding: 1px 5px; margin-left: 2px; vertical-align: 2px; }
.nav a.nav-cta { background: var(--blue); color: #fff; margin-left: 6px; }
.nav a.nav-cta:hover { background: var(--blue-dark); }
.nav-toggle { display: none; background: none; border: 0; padding: 10px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px 0; transition: .2s; }

/* ---------- 메인 비주얼 (3D) ---------- */
.eyebrow { margin: 0 0 10px; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--green); }
.hero {
  --cyan: #38d6ff;
  position: relative; color: #fff; overflow: hidden; isolation: isolate;
  min-height: min(860px, calc(100vh - 68px));
  background:
    radial-gradient(ellipse 60% 50% at 75% 40%, rgba(29,127,196,.45), transparent 70%),
    radial-gradient(ellipse 40% 40% at 15% 85%, rgba(125,186,47,.18), transparent 70%),
    linear-gradient(180deg, #040b17 0%, #071a30 55%, #0a2442 100%);
}
.hero-particles { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; }
.hero-floor {
  position: absolute; left: -50%; right: -50%; bottom: -2%; height: 58%; z-index: -2;
  background-image:
    linear-gradient(rgba(56,214,255,.28) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56,214,255,.22) 1px, transparent 1px);
  background-size: 64px 64px;
  transform: perspective(420px) rotateX(62deg); transform-origin: 50% 100%;
  -webkit-mask-image: linear-gradient(to top, #000 10%, transparent 90%);
          mask-image: linear-gradient(to top, #000 10%, transparent 90%);
  animation: floor-move 2.6s linear infinite;
}
@keyframes floor-move { to { background-position: 0 64px, 0 0; } }

.hero-inner {
  position: relative; display: grid; grid-template-columns: 1fr 1.12fr; align-items: center; gap: 24px;
  padding: 88px 16px 110px; min-height: inherit;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px; margin: 0 0 22px;
  font-size: 12px; font-weight: 700; letter-spacing: 2.5px; text-transform: uppercase; color: var(--cyan);
  padding: 7px 14px; border: 1px solid rgba(56,214,255,.35); border-radius: 999px; background: rgba(56,214,255,.07);
}
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 0 rgba(125,186,47,.7); animation: pulse 1.8s infinite; flex: none; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(125,186,47,0); } 100% { box-shadow: 0 0 0 0 rgba(125,186,47,0); } }
.hero h1 { font-size: clamp(32px, 4.6vw, 56px); font-weight: 800; letter-spacing: -1.5px; line-height: 1.22; text-shadow: 0 4px 30px rgba(0,0,0,.4); }
.grad {
  background: linear-gradient(90deg, #6fe3ff 0%, #38a8ff 45%, #a6e05a 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 18px rgba(56,214,255,.35));
}
.lead { margin: 22px 0 34px; font-size: clamp(16px, 1.7vw, 18px); color: rgba(220,236,255,.78); max-width: 600px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-neon {
  color: #04121f; background: linear-gradient(90deg, #38d6ff, #5fb8ff);
  box-shadow: 0 0 0 1px rgba(56,214,255,.6), 0 8px 30px rgba(56,214,255,.35);
}
.btn-neon:hover { box-shadow: 0 0 0 1px rgba(56,214,255,.9), 0 10px 40px rgba(56,214,255,.55); }
.btn-glass { color: #fff; background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.22); backdrop-filter: blur(8px); }
.btn-glass:hover { background: rgba(255,255,255,.12); }
.lead b { color: #fff; }
.hero-keys { list-style: none; padding: 0; margin: -10px 0 30px; display: flex; flex-wrap: wrap; gap: 8px; }
.hero-keys li {
  display: inline-flex; align-items: center; gap: 7px; font-size: 14px; font-weight: 600; color: #dff3ff;
  padding: 7px 13px 7px 10px; border-radius: 10px; background: rgba(56,214,255,.08); border: 1px solid rgba(56,214,255,.25);
}
.hero-keys svg { width: 20px; height: 20px; fill: none; stroke: var(--cyan); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }

/* 아이콘 공통 */
.icon-sprite { display: none; }
.core-icon svg, .flow-icon svg, .biz-tabs svg, .bp-icon, .industries svg {
  fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round;
}

/* 현장 일러스트 */
.hero-scene { position: relative; }
.plant { width: 100%; height: auto; display: block; overflow: visible; filter: drop-shadow(0 30px 40px rgba(0,0,0,.35)); }
.plant .pad { fill: rgba(29,127,196,.16); stroke: rgba(56,214,255,.55); stroke-width: 1.2; }
.plant .pad-side { fill: rgba(10,50,100,.7); }
.plant .pad-side2 { fill: rgba(6,32,70,.85); }
.plant .pad-grid { stroke: rgba(56,214,255,.14); stroke-width: 1; }
.plant .top { fill: rgba(90,190,255,.32); stroke: rgba(140,220,255,.9); stroke-width: 1.1; stroke-linejoin: round; }
.plant .fx { fill: rgba(25,95,175,.6); stroke: rgba(120,210,255,.7); stroke-width: 1; stroke-linejoin: round; }
.plant .fy { fill: rgba(12,55,120,.75); stroke: rgba(120,210,255,.6); stroke-width: 1; stroke-linejoin: round; }
.plant .side { fill: rgba(20,85,165,.62); stroke: rgba(130,215,255,.8); stroke-width: 1.1; }
.plant .factory .top { fill: rgba(150,180,210,.28); }
.plant .factory .fx { fill: rgba(70,95,130,.7); }
.plant .factory .fy { fill: rgba(45,65,100,.8); }
.plant .stack .side { fill: rgba(80,110,150,.7); stroke: rgba(170,200,230,.8); }
.plant .stack .top { fill: #0b1d33; stroke: rgba(170,200,230,.9); }
.plant .stack-band { fill: none; stroke: rgba(255,120,120,.65); stroke-width: 3; }
.plant .shelter .top { fill: rgba(125,186,47,.35); stroke: rgba(180,235,120,.95); }
.plant .shelter .fx { fill: rgba(30,105,70,.65); stroke: rgba(160,225,110,.7); }
.plant .shelter .fy { fill: rgba(20,70,50,.8); stroke: rgba(160,225,110,.6); }
.plant .screen { fill: #062033; stroke: #38d6ff; stroke-width: 1; }
.plant .screen.s0 { animation: screen 2.4s ease-in-out infinite; }
.plant .screen.s1 { animation: screen 2.4s ease-in-out infinite -1.2s; }
@keyframes screen { 50% { fill: #0c4466; } }
.plant .sensor .top { fill: rgba(255,210,120,.6); stroke: #ffd27a; }
.plant .sensor .fx, .plant .sensor .fy { fill: rgba(150,110,40,.8); stroke: #ffd27a; }
.plant .tank .side { fill: rgba(20,95,160,.55); }
.plant .water { fill: rgba(56,214,255,.45); stroke: #8fe6ff; stroke-width: 1.2; }
.plant .wave { fill: none; stroke: #c9f4ff; stroke-width: 1.6; stroke-linecap: round; animation: wave 2s ease-in-out infinite; }
@keyframes wave { 50% { transform: translateX(6px); } }
.plant .probe, .plant .antenna, .plant .rack { stroke: rgba(180,220,255,.8); stroke-width: 2; }
.plant .rack { stroke-width: 1.5; stroke: rgba(140,190,230,.5); }
.plant .pipe { fill: none; stroke: rgba(255,200,90,.35); stroke-width: 5; stroke-linejoin: round; }
.plant .pipe-flow { fill: none; stroke: #ffd27a; stroke-width: 2; stroke-dasharray: 4 10; stroke-linejoin: round; animation: flow 1s linear infinite; }
@keyframes flow { to { stroke-dashoffset: -14; } }
.plant .laser { stroke: #ff5577; stroke-width: 2.5; filter: drop-shadow(0 0 4px #ff5577); animation: laser 1.2s ease-in-out infinite; }
@keyframes laser { 50% { opacity: .35; } }
.plant .smoke { fill: rgba(200,225,250,.22); transform-box: fill-box; transform-origin: center; animation: smoke 4s ease-out infinite; animation-delay: calc(var(--k) * -1s); }
@keyframes smoke { 0% { transform: translate(0, 0) scale(.4); opacity: 0; } 15% { opacity: 1; } 100% { transform: translate(26px, -70px) scale(2.2); opacity: 0; } }
.plant .ant-dot { fill: #7dba2f; }
.plant .ripple { fill: none; stroke: #7dba2f; stroke-width: 1.5; transform-box: fill-box; transform-origin: center; animation: ripple 2s ease-out infinite; animation-delay: calc(var(--k) * -1s); }
@keyframes ripple { from { transform: scale(.5); opacity: 1; } to { transform: scale(3.2); opacity: 0; } }
.plant .data-path { fill: none; stroke: rgba(125,186,47,.45); stroke-width: 1.3; stroke-dasharray: 3 5; }
.plant .packet { fill: #b6f06a; filter: drop-shadow(0 0 4px #7dba2f); }
.plant .monitor rect:first-child { fill: rgba(6,24,44,.88); stroke: rgba(56,214,255,.6); stroke-width: 1.2; }
.plant .m-title { fill: rgba(200,230,255,.75); font-size: 9px; font-weight: 700; letter-spacing: 1.2px; }
.plant .m-live { fill: #7dba2f; animation: laser 1.4s ease-in-out infinite; }
.plant .m-key { fill: rgba(200,230,255,.6); font-size: 11px; }
.plant .m-val { fill: #7fe6ff; font-size: 12px; font-weight: 700; font-variant-numeric: tabular-nums; }
.plant .m-bar { fill: rgba(56,214,255,.55); }
.plant .m-line { fill: none; stroke: #7dba2f; stroke-width: 1.5; }
.plant .lbl line { stroke: rgba(255,255,255,.45); stroke-width: 1; }
.plant .lbl circle { fill: #fff; }
.plant .lbl rect { fill: rgba(4,14,28,.85); stroke: rgba(255,255,255,.35); }
.plant .lbl text { fill: #fff; font-size: 12.5px; font-weight: 700; text-anchor: middle; }

/* 헤더가 메인 비주얼 위에 있을 때 (어두운 유리 느낌) */
.site-header { transition: background .3s, border-color .3s; }
.site-header.on-hero { background: rgba(4,11,23,.97); border-bottom-color: rgba(120,200,255,.12); }
.site-header.on-hero .brand-text strong { color: #fff; }
.site-header.on-hero .brand-text small { color: rgba(200,225,255,.6); }
.site-header.on-hero .nav a:not(.nav-cta) { color: #dceaf8; }
.site-header.on-hero .nav a:not(.nav-cta):hover { background: rgba(255,255,255,.08); }
.site-header.on-hero .nav-toggle span { background: #fff; }

@media (prefers-reduced-motion: reduce) {
  .hero *, .hero-floor { animation: none !important; }
}

/* ---------- 핵심 사업 카드 ---------- */
.core { margin-top: -64px; position: relative; z-index: 2; }
.core-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.core-card {
  position: relative; display: flex; flex-direction: column; color: var(--ink);
  background: #fff; border-radius: 18px; padding: 26px 22px 22px; box-shadow: 0 14px 40px rgba(10,40,80,.14);
  border: 1px solid #e6eef6; overflow: hidden; transition: transform .2s, box-shadow .2s;
}
.core-card::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--green));
}
.core-card:hover { text-decoration: none; transform: translateY(-4px); box-shadow: 0 20px 50px rgba(10,40,80,.2); }
.core-icon {
  width: 60px; height: 60px; border-radius: 16px; display: grid; place-items: center; margin-bottom: 16px;
  color: #fff; background: linear-gradient(135deg, #1d7fc4, #38c3ef); box-shadow: 0 8px 20px rgba(29,127,196,.35);
}
.core-card:nth-child(3) .core-icon { background: linear-gradient(135deg, #0aa3c2, #38d6ff); }
.core-card:nth-child(4) .core-icon { background: linear-gradient(135deg, #5e9e1f, #8fd14a); box-shadow: 0 8px 20px rgba(125,186,47,.35); }
.core-icon svg { width: 34px; height: 34px; }
.core-num { position: absolute; top: 20px; right: 22px; font-size: 30px; font-weight: 800; color: #eef3f8; }
.core-card h2 { font-size: 21px; letter-spacing: -.3px; }
.core-card p { margin: 6px 0 14px; color: var(--muted); font-size: 15px; line-height: 1.55; flex: 1; }
.core-tags { font-size: 13px; font-weight: 700; color: var(--blue); }
.core-more { text-align: center; margin: 22px 0 0; color: var(--muted); font-size: 15px; }
.core-more a { font-weight: 600; }

/* ---------- 새 소식 ---------- */
.news { padding: 56px 0 0; }
.news-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.news-card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 26px 28px; border-top: 4px solid var(--blue); }
.news-card-goods { border-top-color: var(--gold); }
.news-card h2 { font-size: 20px; margin: 10px 0 8px; }
.news-card p { margin: 0; color: var(--muted); }
.news-card-goods a { color: var(--gold); font-weight: 600; }
.tag { display: inline-block; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.tag-blue { background: #e4f1fb; color: var(--blue-dark); }
.tag-gold { background: var(--gold-soft); color: var(--gold); }

/* ---------- 섹션 공통 ---------- */
.section { padding: 96px 0; }
.section-tint { background: var(--tint); }
.section-head { margin-bottom: 40px; }
.section-head .eyebrow { color: var(--blue); }
.section-head h2 { font-size: clamp(28px, 3.6vw, 38px); font-weight: 800; letter-spacing: -.5px; }
.section-desc { color: var(--muted); margin: 10px 0 0; font-size: 17px; }

/* ---------- 회사소개 ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 40px; align-items: start; }
.about-values { display: grid; gap: 18px; }
.value { padding: 22px 24px; border: 1px solid var(--line); border-radius: var(--radius); }
.value .num { color: var(--green); font-weight: 800; font-size: 14px; }
.value h3 { font-size: 19px; margin: 4px 0 6px; }
.value p { margin: 0; color: var(--muted); }
.info-card { background: var(--navy); color: #fff; border-radius: var(--radius); padding: 30px 32px; }
.info-card h3 { font-size: 20px; margin-bottom: 18px; }
.info { display: grid; grid-template-columns: 84px 1fr; gap: 12px 16px; margin: 0; }
.info dt { color: rgba(255,255,255,.6); font-size: 14px; padding-top: 2px; }
.info dd { margin: 0; }
.info .muted { color: rgba(255,255,255,.6); font-size: 14px; }
.pill { display: inline-block; margin-left: 6px; font-size: 12px; font-weight: 700; background: var(--green); color: #fff; padding: 2px 9px; border-radius: 999px; vertical-align: 1px; }
.info-foot { margin: 22px 0 0; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.15); font-size: 13px; color: rgba(255,255,255,.7); }
.certs { margin-top: 48px; }
.certs h3, .handling h3, .partners h3, .records h3, .goods-body h3 { font-size: 18px; margin-bottom: 14px; }
.certs h3 .small { font-weight: 500; }
.cert-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.cert {
  width: 100%; height: 100%; display: flex; flex-direction: column; text-align: left; cursor: zoom-in;
  font: inherit; color: var(--ink); background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 10px 10px 14px;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.cert:hover, .cert:focus-visible { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #b9d6ee; }
.cert img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; object-position: top; border-radius: 8px; background: var(--tint); border: 1px solid #eef2f6; margin-bottom: 10px; }
.cert strong { font-size: 14px; line-height: 1.35; }
.cert span { font-size: 12px; color: var(--muted); margin-top: 3px; }

/* 인증서 크게 보기 */
.cert-viewer { border: 0; padding: 0; background: transparent; width: 100%; height: 100%; max-width: none; max-height: none; overflow: hidden; }
.cert-viewer[open] { display: flex; align-items: center; justify-content: center; }
.cert-viewer::backdrop { background: rgba(4,11,23,.86); backdrop-filter: blur(4px); }
.cert-viewer figure { margin: 0; display: flex; flex-direction: column; align-items: center; max-height: 100%; padding: 56px 72px 20px; }
.cert-viewer img { max-width: min(680px, 100%); max-height: calc(100vh - 150px); object-fit: contain; border-radius: 6px; background: #fff; box-shadow: 0 20px 60px rgba(0,0,0,.5); animation: cv-in .25s ease; }
@keyframes cv-in { from { opacity: 0; transform: scale(.97); } }
.cert-viewer figcaption { color: #fff; text-align: center; margin-top: 14px; display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 10px; align-items: baseline; }
.cert-viewer figcaption strong { font-size: 17px; }
.cert-viewer figcaption span { color: rgba(220,236,255,.7); font-size: 14px; }
.cert-viewer figcaption em { font-style: normal; color: rgba(220,236,255,.5); font-size: 13px; }
.cv-close, .cv-nav {
  position: fixed; border: 0; cursor: pointer; color: #fff; background: rgba(255,255,255,.1);
  display: grid; place-items: center; border-radius: 50%; transition: background .15s;
}
.cv-close:hover, .cv-nav:hover { background: rgba(255,255,255,.22); }
.cv-close { top: 16px; right: 16px; width: 44px; height: 44px; font-size: 28px; line-height: 1; }
.cv-nav { top: 50%; width: 52px; height: 52px; margin-top: -26px; font-size: 34px; line-height: 1; padding-bottom: 4px; }
.cv-prev { left: 16px; }
.cv-next { right: 16px; }


/* ---------- 사업분야 ---------- */
.section-head.center { text-align: center; }
.section-head.center h2 { line-height: 1.35; }

/* 서비스 흐름 */
.flow { list-style: none; padding: 0; margin: 0 0 64px; display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; counter-reset: f; }
.flow li { position: relative; text-align: center; background: #fff; border-radius: 16px; padding: 24px 14px 20px; box-shadow: 0 2px 10px rgba(10,40,80,.06); }
.flow li:not(:last-child)::after {
  content: ""; position: absolute; right: -12px; top: 50px; width: 10px; height: 10px; z-index: 1;
  border-top: 2.5px solid var(--green); border-right: 2.5px solid var(--green); transform: rotate(45deg);
}
.flow-icon { width: 56px; height: 56px; margin: 0 auto 10px; border-radius: 50%; display: grid; place-items: center; color: var(--blue); background: #e7f2fb; }
.flow-icon svg { width: 30px; height: 30px; }
.flow b { display: block; font-size: 12px; color: var(--green); letter-spacing: 1px; }
.flow h3 { font-size: 17px; margin: 2px 0 6px; }
.flow p { margin: 0; font-size: 13.5px; color: var(--muted); line-height: 1.5; }

/* 사업 탭 */
.biz-tabs { position: relative; display: flex; gap: 8px; overflow-x: auto; padding-bottom: 4px; margin-bottom: 18px; scrollbar-width: thin; }
.biz-tabs button {
  flex: 1 0 auto; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-size: 15px; font-weight: 700; color: var(--muted); cursor: pointer;
  padding: 13px 16px; border-radius: 12px; border: 1px solid var(--line); background: #fff; white-space: nowrap;
  transition: background .15s, color .15s, border-color .15s;
}
.biz-tabs button svg { width: 22px; height: 22px; }
.biz-tabs button:hover { color: var(--blue); border-color: #b9d6ee; }
.biz-tabs button[aria-selected="true"] { color: #fff; background: var(--navy); border-color: var(--navy); }
.biz-tabs button[aria-selected="true"] svg { color: var(--cyan, #38d6ff); stroke: #38d6ff; }

.biz-panel { display: grid; grid-template-columns: 1fr 1.15fr; background: #fff; border-radius: 20px; overflow: hidden; box-shadow: var(--shadow); animation: panel-in .35s ease; }
.biz-panel[hidden] { display: none; }
@keyframes panel-in { from { opacity: 0; transform: translateY(8px); } }
.bp-visual { position: relative; min-height: 380px; padding: 30px; color: #fff; overflow: hidden; display: flex; flex-direction: column; justify-content: space-between; }
.bp-visual::before {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px);
  background-size: 28px 28px;
}
.v-air { background: radial-gradient(circle at 30% 30%, #2a8fd8, #0b2a45 75%); }
.v-process { background: radial-gradient(circle at 30% 30%, #2f6fd0, #101f47 75%); }
.v-water { background: radial-gradient(circle at 30% 30%, #18b4d8, #07344d 75%); }
.v-odor { background: radial-gradient(circle at 30% 30%, #6fae2c, #1d3a17 75%); }
.v-lab { background: radial-gradient(circle at 30% 30%, #5a6fd6, #1b1f4a 75%); }
.v-parts { background: radial-gradient(circle at 30% 30%, #1f9b8f, #0b3330 75%); }
.bp-icon { position: relative; width: 110px; height: 110px; stroke-width: 1.6; color: #fff; filter: drop-shadow(0 0 18px rgba(255,255,255,.35)); }
.bp-chips { position: relative; list-style: none; padding: 0; margin: 22px 0 0; align-self: flex-start; display: flex; flex-wrap: wrap; gap: 8px; max-width: 300px; }
.bp-chips li { font-size: 14px; font-weight: 700; padding: 6px 12px; border-radius: 8px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.3); backdrop-filter: blur(4px); }
.bp-chips sub { font-size: 10px; }
.bp-photo {
  position: absolute; right: 26px; top: 30px; width: 46%; max-width: 230px; aspect-ratio: 4 / 3; object-fit: cover;
  border-radius: 12px; border: 3px solid rgba(255,255,255,.85); box-shadow: 0 14px 30px rgba(0,0,0,.35); transform: rotate(2deg);
}
.bp-body { padding: 36px 38px; }
.bp-cat { font-size: 13px; font-weight: 700; color: var(--green); letter-spacing: .5px; }
.bp-body h3 { font-size: 26px; letter-spacing: -.5px; margin: 4px 0 12px; }
.bp-sum { margin: 0 0 20px; font-size: 16.5px; color: #3a4757; }
.bp-sum b { color: var(--blue-dark); }
.bp-list { list-style: none; padding: 0; margin: 0 0 22px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; }
.bp-list li { position: relative; padding-left: 26px; font-weight: 600; font-size: 15px; line-height: 1.45; }
.bp-list li::before {
  content: ""; position: absolute; left: 0; top: 1px; width: 18px; height: 18px; border-radius: 50%;
  background: var(--blue) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cpath d='M5 9.5l2.6 2.5L13 6.5' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 18px no-repeat;
}
.bp-meta { display: grid; grid-template-columns: 76px 1fr; gap: 8px 12px; margin: 0; padding-top: 18px; border-top: 1px solid var(--line); font-size: 14.5px; }
.bp-meta dt { color: var(--muted); font-weight: 600; }
.bp-meta dd { margin: 0; }

/* 적용 산업 */
.industries { margin-top: 56px; text-align: center; }
.industries h3 { font-size: 20px; margin-bottom: 22px; }
.industries ul { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.industries li { display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 22px 8px 18px; background: #fff; border-radius: 16px; font-weight: 700; font-size: 15px; box-shadow: 0 2px 10px rgba(10,40,80,.06); }
.industries svg { width: 44px; height: 44px; color: var(--blue); stroke-width: 1.8; }

.chips { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { background: #fff; border-radius: 999px; padding: 7px 14px; font-size: 14px; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
.chips-outline li { background: transparent; border: 1px solid var(--line); box-shadow: none; }

/* ---------- 주요제품 ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.prod { display: flex; flex-direction: column; color: var(--ink); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 14px 18px; transition: box-shadow .2s, transform .2s; }
.prod:hover { text-decoration: none; box-shadow: var(--shadow); transform: translateY(-3px); }
.prod-img { aspect-ratio: 3 / 4; border-radius: 10px; overflow: hidden; background: #eef3f7; margin-bottom: 14px; }
.prod-img img { width: 100%; height: 100%; object-fit: cover; }
.prod-maker { font-size: 12px; font-weight: 700; color: var(--blue); letter-spacing: .5px; }
.prod h3 { font-size: 17px; margin: 2px 0 6px; }
.prod p { margin: 0 0 12px; color: var(--muted); font-size: 14px; flex: 1; }
.prod-dl { font-size: 13px; font-weight: 600; color: var(--blue); }
.partners { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 56px; }

/* ---------- 연혁·실적 ---------- */
.history-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: start; }
.timeline { list-style: none; margin: 0; padding: 0 0 0 22px; border-left: 2px solid #cfdeea; }
.timeline > li { position: relative; padding: 0 0 28px 18px; }
.timeline > li::before { content: ""; position: absolute; left: -31px; top: 5px; width: 14px; height: 14px; border-radius: 50%; background: #fff; border: 3px solid var(--blue); }
.timeline .year { font-weight: 800; font-size: 20px; color: var(--blue-dark); }
.timeline ul { margin: 6px 0 0; padding-left: 18px; color: var(--ink); font-size: 15px; }
.timeline ul li { margin: 3px 0; }
.tl-future::before { border-color: var(--gold) !important; background: var(--gold) !important; }
.tl-future .year { color: var(--gold); }
.records { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 26px; overflow-x: auto; }
.records table { width: 100%; border-collapse: collapse; font-size: 14px; }
.records th { text-align: left; color: var(--muted); font-weight: 600; border-bottom: 2px solid var(--line); padding: 8px 8px; white-space: nowrap; }
.records td { border-bottom: 1px solid var(--line); padding: 9px 8px; vertical-align: top; }
.records td:first-child { white-space: nowrap; color: var(--blue-dark); font-weight: 600; }
.records td:nth-child(2) { white-space: nowrap; }

/* ---------- 관광굿즈 ---------- */
.goods { background: var(--gold-soft); }
.goods .section-head .eyebrow { color: var(--gold); }
.soon { display: inline-block; vertical-align: middle; font-size: 14px; font-weight: 700; background: var(--gold); color: #fff; padding: 4px 12px; border-radius: 999px; margin-left: 8px; letter-spacing: 0; }
.goods-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: center; }
.goods-visual svg { width: 100%; height: auto; border-radius: 18px; box-shadow: var(--shadow); }
.goods-info { display: grid; grid-template-columns: 56px 1fr; gap: 8px 12px; margin: 0 0 28px; padding: 18px 22px; background: #fff; border-radius: var(--radius); }
.goods-info dt { color: var(--gold); font-weight: 700; font-size: 14px; padding-top: 1px; }
.goods-info dd { margin: 0; }
.goods-list { list-style: none; padding: 0; margin: 0 0 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.goods-list li { background: #fff; border-radius: 12px; padding: 16px 18px; border-left: 4px solid var(--gold); }
.goods-list strong { display: block; margin-bottom: 4px; }
.goods-list span { color: var(--muted); font-size: 14px; }

/* ---------- 자료실 ---------- */
.dl-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.dl-list a { display: flex; align-items: center; gap: 12px; background: #fff; border-radius: 12px; padding: 16px 18px; color: var(--ink); font-weight: 600; font-size: 15px; box-shadow: 0 1px 3px rgba(0,0,0,.05); }
.dl-list a:hover { text-decoration: none; box-shadow: var(--shadow); }
.dl-icon { flex: none; font-size: 11px; font-weight: 800; color: #fff; background: #d04a3a; border-radius: 6px; padding: 5px 7px; }

/* ---------- 문의 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; }
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { display: flex; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.contact-list span { width: 64px; flex: none; color: var(--muted); font-size: 14px; padding-top: 2px; }
.map-link { margin-left: auto; font-size: 14px; font-weight: 600; }
.contact-form { background: var(--tint); border-radius: var(--radius); padding: 30px; display: grid; gap: 16px; align-content: start; }
.contact-form label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; }
.contact-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form input, .contact-form select, .contact-form textarea {
  font: inherit; font-weight: 400; padding: 12px 14px; border: 1px solid #cfdae5; border-radius: 10px; background: #fff; color: var(--ink); width: 100%;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: 2px solid var(--blue); outline-offset: 0; border-color: transparent; }
.contact-form .btn { justify-self: start; }
.contact-form .btn:disabled { opacity: .6; cursor: wait; }
.contact-form p { margin: 0; }
.hp { position: absolute; left: -9999px; }
.form-status:empty { display: none; }
.form-status.ok { color: #2e7d32; font-weight: 600; }
.form-status.err { color: #c62828; font-weight: 600; }

/* ---------- 보내기 창 ---------- */
.send-dialog { border: 0; padding: 0; border-radius: 18px; width: min(560px, calc(100% - 32px)); box-shadow: 0 30px 80px rgba(0,0,0,.35); }
.send-dialog::backdrop { background: rgba(4,11,23,.6); backdrop-filter: blur(3px); }
.send-box { position: relative; padding: 28px 26px 22px; display: grid; gap: 12px; }
.send-box h3 { font-size: 20px; padding-right: 30px; }
.send-box p { margin: 0; }
.send-box textarea { width: 100%; font: inherit; font-size: 14px; padding: 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--tint); resize: vertical; }
.send-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.send-actions .btn { padding: 10px 16px; font-size: 14px; }
.btn-line { border-color: #cfdae5; color: var(--ink); background: #fff; }
.btn-line:hover { border-color: var(--blue); color: var(--blue); }
.dlg-close { position: absolute; top: 12px; right: 14px; width: 36px; height: 36px; border: 0; background: none; font-size: 26px; line-height: 1; cursor: pointer; color: var(--muted); border-radius: 8px; }
.dlg-close:hover { background: var(--tint); }

/* ---------- 푸터 ---------- */
.site-footer { background: var(--navy); color: rgba(255,255,255,.75); padding: 40px 0; font-size: 14px; }
.footer-inner { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-footer strong { color: #fff; }
.site-footer p { margin: 6px 0 0; }
.copy { text-align: right; }

/* ---------- 반응형 ---------- */
@media (max-width: 1080px) {
  .prod-grid { grid-template-columns: repeat(3, 1fr); }
  .cert-list { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav {
    position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch;
    background: #fff; border-bottom: 1px solid var(--line); padding: 8px 16px 16px; gap: 2px;
    display: none;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px; }
  .nav a.nav-cta { margin: 6px 0 0; text-align: center; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .about-grid, .history-grid, .goods-grid, .contact-grid, .partners, .news-grid { grid-template-columns: 1fr; }
  .dl-list { grid-template-columns: 1fr 1fr; }
  .goods-visual { max-width: 460px; }
  .site-header.on-hero .nav { background: #071a30; border-bottom-color: rgba(120,200,255,.12); }
  .hero { min-height: 0; }
  .hero-inner { grid-template-columns: 1fr; padding: 56px 16px 110px; gap: 12px; }
  .hero-scene { max-width: 560px; width: 100%; margin: 0 auto; }
  .core-grid { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .flow li::after { display: none; }
  .biz-panel { grid-template-columns: 1fr; }
  .bp-visual { min-height: 260px; }
  .industries ul { grid-template-columns: repeat(3, 1fr); }
  .section { padding: 72px 0; }
  .pc { display: none; }
}
@media (max-width: 600px) {
  .hero-inner { padding: 44px 16px 96px; }
  .plant .tag { transform-box: fill-box; transform-origin: center; transform: scale(1.4); }
  .hero-keys li { font-size: 13px; padding: 6px 10px 6px 8px; }
  .core-grid { gap: 10px; }
  .core-card { padding: 18px 14px 16px; border-radius: 14px; }
  .core-icon { width: 46px; height: 46px; border-radius: 12px; margin-bottom: 12px; }
  .core-icon svg { width: 26px; height: 26px; }
  .core-num { font-size: 22px; top: 14px; right: 14px; }
  .core-card h2 { font-size: 17px; }
  .core-card p { font-size: 13.5px; }
  .core-tags { font-size: 12px; }
  .flow { grid-template-columns: 1fr 1fr; gap: 10px; }
  .flow li:last-child { grid-column: 1 / -1; }
  .biz-tabs button { flex: 0 0 auto; font-size: 14px; padding: 11px 14px; }
  .bp-visual { padding: 22px; min-height: 230px; }
  .bp-icon { width: 76px; height: 76px; }
  .bp-chips { max-width: 55%; }
  .bp-chips li { font-size: 12.5px; padding: 4px 9px; }
  .bp-photo { width: 42%; right: 16px; top: 22px; }
  .bp-body { padding: 26px 20px; }
  .bp-body h3 { font-size: 21px; }
  .bp-list { grid-template-columns: 1fr; }
  .industries ul { gap: 8px; }
  .industries li { font-size: 13px; padding: 16px 4px 14px; }
  .industries svg { width: 34px; height: 34px; }
  .dl-list, .goods-list, .contact-form .row { grid-template-columns: 1fr; }
  .prod-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .prod h3 { font-size: 15px; }
  .prod p { font-size: 13px; }
  .cert-list { grid-template-columns: 1fr 1fr; gap: 10px; }
  .cert-viewer figure { padding: 64px 12px 84px; }
  .cv-nav { top: auto; bottom: 18px; margin-top: 0; }
  .cv-prev { left: calc(50% - 64px); }
  .cv-next { right: calc(50% - 64px); }
  .info-card { padding: 24px 20px; }
  .info { grid-template-columns: 70px 1fr; }
  .records { padding: 18px 14px; }
  .records td:nth-child(2) { white-space: normal; }
  .contact-form { padding: 22px 18px; }
  .copy { text-align: left; }
  .brand-text strong { font-size: 17px; }
}