:root {
  --navy: #10283a;
  --deep: #0b1a25;
  --blue: #1f7ba7;
  --teal: #12a6a0;
  --mint: #e9f8f5;
  --sand: #f7f4ee;
  --text: #1e2a32;
  --muted: #6b7b86;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(8, 30, 45, .13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Noto Sans KR', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }

.top-strip {
  background: var(--deep);
  color: rgba(255,255,255,.86);
  font-size: 14px;
}
.strip-inner {
  height: 38px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.strip-inner a { font-weight: 800; color: #91f4e9; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(16,40,58,.08);
}
.nav-wrap {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 44px; height: 44px; border-radius: 15px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  display: grid; place-items: center;
  color: white; font-size: 24px; font-weight: 800;
  box-shadow: 0 12px 26px rgba(31,123,167,.3);
}
.brand strong { display: block; font-size: 21px; letter-spacing: -0.04em; color: var(--navy); }
.brand em { display: block; font-size: 11px; font-style: normal; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; }
.main-nav { display: flex; gap: 34px; font-weight: 700; color: var(--navy); }
.main-nav a { position: relative; }
.main-nav a::after {
  content: ''; position: absolute; left: 0; bottom: -7px;
  width: 0; height: 2px; background: var(--teal);
  transition: .25s;
}
.main-nav a:hover::after { width: 100%; }
.nav-toggle { display: none; background: none; border: 0; font-size: 26px; color: var(--navy); }

.hero {
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at top right, #d8f6ef 0, rgba(216,246,239,0) 34%), linear-gradient(120deg, #f8fbfc 0%, #eef7f8 100%);
}
.hero::before {
  content: '';
  position: absolute;
  inset: auto -120px -180px auto;
  width: 520px; height: 520px;
  border-radius: 50%;
  background: rgba(18,166,160,.12);
}
.hero-grid {
  min-height: 640px;
  display: grid;
  grid-template-columns: 1.05fr .8fr;
  align-items: center;
  gap: 60px;
  padding: 70px 0;
}
.eyebrow, .section-head span, .label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.eyebrow::before, .section-head span::before, .label::before {
  content: '';
  width: 22px; height: 2px;
  background: var(--teal);
}
.hero h1 {
  margin: 18px 0 20px;
  font-size: clamp(42px, 6vw, 68px);
  line-height: 1.12;
  letter-spacing: -0.07em;
  color: var(--navy);
}
.hero p { max-width: 590px; font-size: 19px; color: #4f626e; margin: 0 0 34px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 138px; height: 52px; border-radius: 999px;
  font-weight: 800; transition: transform .2s, box-shadow .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn.primary { background: var(--navy); color: white; box-shadow: 0 14px 24px rgba(16,40,58,.2); }
.btn.ghost { background: white; color: var(--navy); border: 1px solid rgba(16,40,58,.12); }
.hero-visual {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.hero-illustration {
  width: min(100%, 590px);
  border-radius: 36px;
  box-shadow: 0 24px 60px rgba(8, 30, 45, .14);
  transform: rotate(1.2deg);
}
.hero-card {
  position: absolute;
  left: -20px;
  bottom: 22px;
  max-width: 365px;
  border-radius: 34px;
  padding: 32px;
  background: rgba(255,255,255,.86);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255,255,255,.85);
  overflow: hidden;
}
.hero-card::before {
  content: '';
  position: absolute;
  inset: -90px -70px auto auto;
  width: 240px; height: 240px;
  background: linear-gradient(135deg, rgba(31,123,167,.16), rgba(18,166,160,.2));
  border-radius: 50%;
}
.status-dot {
  width: 13px; height: 13px; border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 9px rgba(34,197,94,.13);
  margin-bottom: 24px;
}
.hero-card h2 { margin: 0 0 24px; font-size: 28px; color: var(--navy); letter-spacing: -0.04em; }
.hero-card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.hero-card li {
  display: flex; gap: 12px; align-items: center;
  padding: 14px 0;
  border-bottom: 1px dashed rgba(16,40,58,.13);
  font-weight: 700;
}
.hero-card li span { color: var(--teal); font-weight: 800; }

.quick-info { transform: translateY(-34px); margin-bottom: -34px; }
.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--white);
  border-radius: 24px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.info-grid div { padding: 26px 30px; border-right: 1px solid rgba(16,40,58,.08); }
.info-grid div:last-child { border-right: 0; }
.info-grid strong { display: block; color: var(--navy); font-size: 20px; margin-bottom: 4px; }
.info-grid p { margin: 0; color: var(--muted); }

.section { padding: 110px 0; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 46px; }
.section-head h2, .split-copy h2, .contact h2 {
  margin: 13px 0 12px;
  font-size: clamp(32px, 4vw, 46px);
  line-height: 1.2;
  letter-spacing: -0.06em;
  color: var(--navy);
}
.section-head p { margin: 0; color: var(--muted); font-size: 18px; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.service-card {
  background: #fff;
  border: 1px solid rgba(16,40,58,.08);
  border-radius: 26px;
  padding: 30px;
  box-shadow: 0 12px 28px rgba(8, 30, 45, .07);
  transition: transform .22s, border-color .22s;
}
.service-card:hover { transform: translateY(-6px); border-color: rgba(18,166,160,.35); }
.service-card .icon { font-size: 34px; margin-bottom: 18px; }
.service-card h3 { margin: 0 0 12px; color: var(--navy); font-size: 21px; letter-spacing: -0.04em; }
.service-card p { margin: 0; color: var(--muted); }
.service-card.highlight { background: var(--navy); color: white; }
.service-card.highlight h3, .service-card.highlight p { color: white; }

.split { background: var(--sand); }
.split-grid { display: grid; grid-template-columns: .95fr 1fr; gap: 60px; align-items: center; }
.image-panel {
  min-height: 420px;
  border-radius: 32px;
  background: linear-gradient(145deg, #17354b, #0c202d);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.image-panel img {
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: cover;
}
.image-panel::before, .image-panel::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
}
.image-panel::before { width: 320px; height: 320px; top: -100px; left: -80px; }
.image-panel::after { width: 220px; height: 220px; right: -70px; bottom: -60px; }
.pipe-graphic { position: absolute; inset: 0; }
.pipe-graphic span {
  position: absolute;
  display: block;
  border: 18px solid rgba(145,244,233,.9);
  border-radius: 999px;
}
.pipe-graphic span:nth-child(1) { width: 310px; height: 120px; left: 72px; top: 82px; border-bottom-color: transparent; border-left-color: transparent; transform: rotate(8deg); }
.pipe-graphic span:nth-child(2) { width: 300px; height: 120px; right: 60px; top: 205px; border-top-color: transparent; border-right-color: transparent; transform: rotate(-7deg); }
.pipe-graphic span:nth-child(3) { width: 110px; height: 110px; left: 50%; top: 50%; transform: translate(-50%, -50%); border-color: rgba(255,255,255,.72); }
.split-copy p { color: #4f626e; font-size: 18px; }
.check-list { margin-top: 28px; display: grid; gap: 10px; }
.check-list p { margin: 0; padding: 14px 18px; background: white; border-radius: 14px; font-weight: 700; color: var(--navy); }

.process { background: var(--navy); color: white; }
.section-head.light h2, .section-head.light p { color: white; }
.equipment-banner {
  width: min(760px, 100%);
  margin: 0 auto 34px;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,.18);
}
.equipment-banner img { width: 100%; }
.process-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin: 0;
  padding: 0;
}
.process-list li {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 24px;
  padding: 28px;
}
.process-list span {
  display: grid; place-items: center;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--teal);
  font-weight: 800;
  margin-bottom: 24px;
}
.process-list h3 { margin: 0 0 10px; font-size: 22px; }
.process-list p { margin: 0; color: rgba(255,255,255,.74); }

.cases { background: #fbfcfd; }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.case-grid article {
  min-height: 190px;
  border-radius: 24px;
  padding: 14px 14px 28px;
  background: linear-gradient(135deg, #ffffff, #eff9f7);
  border: 1px solid rgba(16,40,58,.08);
  overflow: hidden;
}
.case-grid article img {
  width: 100%;
  aspect-ratio: 31 / 18;
  object-fit: cover;
  border-radius: 18px;
  margin-bottom: 22px;
}
.case-grid h3 { color: var(--navy); margin: 0 16px 12px; font-size: 23px; }
.case-grid p { color: var(--muted); margin: 0 16px; }

.contact {
  padding: 110px 0;
  background: linear-gradient(120deg, #ecf9f7 0%, #ffffff 100%);
}
.contact-grid { display: grid; grid-template-columns: .85fr 1fr; gap: 60px; align-items: start; }
.contact p { color: var(--muted); font-size: 18px; }
.contact-box {
  margin-top: 34px;
  padding: 26px;
  border-radius: 24px;
  background: var(--navy);
  color: white;
  display: grid;
  gap: 8px;
  width: min(100%, 380px);
}
.contact-box a { font-size: 30px; font-weight: 800; color: #91f4e9; }
.inquiry-form {
  background: white;
  border-radius: 30px;
  padding: 34px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 16px;
}
.inquiry-form label { display: grid; gap: 8px; font-weight: 800; color: var(--navy); }
.inquiry-form input, .inquiry-form select, .inquiry-form textarea {
  width: 100%;
  border: 1px solid rgba(16,40,58,.14);
  border-radius: 14px;
  padding: 14px 16px;
  font: inherit;
  outline: none;
  color: var(--text);
  background: #fbfcfd;
}
.inquiry-form input:focus, .inquiry-form select:focus, .inquiry-form textarea:focus { border-color: var(--teal); background: white; }
.inquiry-form button {
  height: 54px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  color: white;
  font-weight: 800;
  font-size: 16px;
  cursor: pointer;
}
.form-note { margin: 0; font-size: 13px !important; color: var(--muted); }

.site-footer { background: var(--deep); color: rgba(255,255,255,.72); padding: 36px 0; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr auto; gap: 24px; align-items: center; }
.footer-grid strong { color: white; font-size: 20px; }
.footer-grid p { margin: 4px 0; }
.footer-grid a { color: #91f4e9; font-weight: 800; }

@media (max-width: 920px) {
  .nav-toggle { display: block; }
  .main-nav {
    position: absolute;
    top: 76px; left: 0; right: 0;
    display: none;
    flex-direction: column;
    gap: 0;
    background: white;
    border-bottom: 1px solid rgba(16,40,58,.08);
  }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 18px 24px; border-top: 1px solid rgba(16,40,58,.06); }
  .hero-grid, .split-grid, .contact-grid { grid-template-columns: 1fr; gap: 34px; }
  .hero-grid { min-height: auto; padding: 64px 0 84px; }
  .hero-visual { min-height: auto; align-items: center; }
  .hero-card { position: relative; left: auto; bottom: auto; margin-top: -70px; width: calc(100% - 28px); }
  .info-grid, .service-grid, .process-list, .case-grid { grid-template-columns: 1fr; }
  .info-grid div { border-right: 0; border-bottom: 1px solid rgba(16,40,58,.08); }
  .info-grid div:last-child { border-bottom: 0; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .container { width: min(100% - 28px, 1160px); }
  .strip-inner { justify-content: center; }
  .strip-inner span { display: none; }
  .brand strong { font-size: 18px; }
  .hero-card, .inquiry-form { padding: 24px; border-radius: 24px; }
  .hero-illustration { transform: none; border-radius: 24px; }
  .section, .contact { padding: 74px 0; }
  .contact-box a { font-size: 25px; }
}