:root {
  color-scheme: light;
  --ink: #151922;
  --muted: #667085;
  --line: #d8dee9;
  --blue: #183a9a;
  --blue-deep: #0d276d;
  --steel: #eef2f7;
  --paper: #f7f5f0;
  --white: #ffffff;
  --copper: #b9653a;
  --green: #2f6f5e;
  --shadow: 0 16px 38px rgba(20, 28, 44, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.55;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 18px clamp(22px, 5vw, 76px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(216, 222, 233, 0.72);
  backdrop-filter: blur(14px);
}
.brand { display: flex; align-items: baseline; gap: 12px; min-width: 190px; }
.brand-mark { font-size: 30px; font-weight: 800; letter-spacing: 0; color: var(--blue); }
.brand-name { font-size: 15px; font-weight: 600; color: #273044; }
.site-nav { display: flex; gap: clamp(12px, 2vw, 28px); font-size: 15px; color: #364152; }
.site-nav a { padding: 8px 2px; border-bottom: 2px solid transparent; }
.site-nav a:hover { color: var(--blue); border-bottom-color: var(--blue); }

.hero {
  min-height: 710px;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1.08fr);
  align-items: center;
  gap: clamp(34px, 6vw, 84px);
  padding: 74px clamp(22px, 6vw, 86px) 56px;
  background:
    linear-gradient(90deg, rgba(247,245,240,0.94) 0%, rgba(247,245,240,0.74) 45%, rgba(255,255,255,0.98) 100%),
    var(--paper);
}
.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 650px;
  margin-bottom: 24px;
  font-size: clamp(42px, 5.2vw, 76px);
  line-height: 1.08;
  letter-spacing: 0;
}
.hero-text {
  max-width: 590px;
  margin-bottom: 34px;
  font-size: 20px;
  color: #505a69;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.primary-button, .secondary-button {
  min-width: 138px;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: 1px solid var(--blue);
  font-weight: 800;
}
.primary-button { background: var(--blue); color: white; }
.secondary-button { background: white; color: var(--blue); }
.hero-visual {
  min-height: 500px;
  display: grid;
  place-items: center;
  background: #fff;
  border: 1px solid #e1e6ef;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.hero-visual img {
  width: min(82%, 620px);
  filter: drop-shadow(0 22px 26px rgba(22, 30, 45, 0.16));
}

.summary-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
}
.summary-band div {
  padding: 26px clamp(18px, 4vw, 64px);
  border-right: 1px solid var(--line);
}
.summary-band div:last-child { border-right: 0; }
.summary-band strong { display: block; font-size: 30px; color: var(--blue-deep); }
.summary-band span { display: block; margin-top: 4px; color: var(--muted); font-weight: 600; }

.section { padding: 88px clamp(22px, 6vw, 86px); }
.section-head { max-width: 820px; margin-bottom: 38px; }
.section-head h2, .process-copy h2, .contact-section h2 {
  margin-bottom: 14px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.18;
  letter-spacing: 0;
}
.section-head p, .process-copy p, .contact-section p { color: var(--muted); font-size: 18px; }
.section-head.compact { margin-bottom: 28px; }

.product-section { background: #fff; }
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.product-card {
  min-height: 420px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 24px;
  background: #f9fafc;
  border: 1px solid var(--line);
}
.product-card img {
  height: 260px;
  width: 100%;
  object-fit: contain;
  margin-bottom: 20px;
}
.product-card h3 { margin-bottom: 8px; font-size: 22px; }
.product-card p { margin-bottom: 0; color: var(--muted); }

.capacity-section { background: var(--steel); }
.capacity-table {
  max-width: 980px;
  border-top: 2px solid var(--blue-deep);
  background: white;
}
.capacity-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  align-items: center;
  min-height: 78px;
  padding: 0 28px;
  border-bottom: 1px solid var(--line);
  font-size: 20px;
}
.capacity-row strong { color: var(--blue); text-align: right; font-size: 24px; }

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(360px, 1.12fr);
  gap: clamp(30px, 5vw, 72px);
  align-items: center;
  background: #fff;
}
.process-list {
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}
.process-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 54px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  background: #fbfcfe;
  font-weight: 700;
}
.process-list span {
  width: 38px;
  color: var(--copper);
  font-weight: 800;
}
.equipment-panel {
  background: #f7f5f0;
  border: 1px solid var(--line);
  overflow: hidden;
}
.equipment-view {
  position: relative;
  margin: 0;
  background: #fff;
}
.equipment-view img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  padding: 22px;
  background: #fff;
  transition: opacity 0.18s ease;
}
.equipment-view figcaption {
  position: absolute;
  left: 18px;
  bottom: 16px;
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
}
.equipment-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
}
.equipment-item {
  min-height: 62px;
  display: flex;
  align-items: center;
  padding: 16px 18px;
  background: white;
  border: 0;
  font-weight: 800;
  color: #263247;
  cursor: pointer;
  font: inherit;
  text-align: left;
}
.equipment-item:hover,
.equipment-item.is-active {
  background: #edf3ff;
  color: var(--blue);
}

.quality-section { background: #17202e; color: white; }
.quality-section .eyebrow { color: #8fb2ff; }
.quality-section .section-head p { color: #c7ced9; }
.quality-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.quality-grid div {
  min-height: 190px;
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.04);
}
.quality-grid h3 { margin-bottom: 12px; color: #fff; }
.quality-grid p { margin-bottom: 0; color: #d7dce5; }

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: start;
  background: var(--paper);
}
.contact-box {
  display: grid;
  gap: 12px;
  padding: 30px;
  background: white;
  border: 1px solid var(--line);
  font-style: normal;
  box-shadow: 0 12px 28px rgba(25, 34, 52, 0.08);
}
.contact-box strong { font-size: 24px; color: var(--blue); }
.contact-box a { color: #182f75; font-weight: 800; }
.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 24px clamp(22px, 6vw, 86px);
  background: #101827;
  color: #cbd5e1;
  font-size: 14px;
}

@media (max-width: 920px) {
  .site-header { align-items: flex-start; flex-direction: column; gap: 10px; }
  .site-nav { width: 100%; overflow-x: auto; padding-bottom: 2px; }
  .hero, .split-section, .contact-section { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: 54px; }
  .hero-visual { min-height: 360px; }
  .summary-band { grid-template-columns: repeat(2, 1fr); }
  .summary-band div:nth-child(2) { border-right: 0; }
  .summary-band div:nth-child(1), .summary-band div:nth-child(2) { border-bottom: 1px solid var(--line); }
  .product-grid, .quality-grid { grid-template-columns: 1fr; }
  .product-card { min-height: auto; }
}

@media (max-width: 560px) {
  .brand { min-width: 0; }
  .brand-mark { font-size: 26px; }
  .brand-name { font-size: 14px; }
  h1 { font-size: 38px; }
  .hero-text, .section-head p, .process-copy p, .contact-section p { font-size: 16px; }
  .summary-band { grid-template-columns: 1fr; }
  .summary-band div { border-right: 0; border-bottom: 1px solid var(--line); }
  .summary-band div:last-child { border-bottom: 0; }
  .capacity-row { grid-template-columns: 1fr; gap: 6px; padding: 18px; }
  .capacity-row strong { text-align: left; }
  .equipment-list { grid-template-columns: 1fr; }
  .site-footer { flex-direction: column; }
}

@media print {
  .site-header, .hero-actions { display: none; }
  body { background: white; color: #111827; }
  .hero, .section, .contact-section, .split-section { padding: 28px; }
  .hero, .capacity-section, .quality-section, .contact-section { background: white; color: #111827; }
  .quality-grid div { border-color: #d8dee9; background: white; }
  .quality-section .eyebrow, .quality-grid h3, .quality-grid p { color: #111827; }
  .hero-visual, .product-card, .equipment-panel, .contact-box { box-shadow: none; }
}