:root {
  --surface-primary: #f7fbfb;
  --surface-secondary: #eef6f5;
  --surface-elevated: #ffffff;
  --ink: #073b4c;
  --muted: #49636a;
  --soft: #779197;
  --line: #d6e6e5;
  --line-soft: #e9f2f1;
  --teal: #1fb09d;
  --navy: #06495f;
  --clinical: #bd4764;
  --supply: #91b859;
  --warning: #b8821b;
  --shadow-subtle: 0 10px 30px rgba(6, 36, 45, 0.08);
  --shadow-default: 0 18px 48px rgba(6, 36, 45, 0.12);
  --shadow-prominent: 0 28px 80px rgba(6, 36, 45, 0.18);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Pretendard, "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif;
  color: var(--ink);
  background: var(--surface-primary);
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

.shell {
  min-height: 100dvh;
  background: var(--surface-primary);
}

.container {
  width: min(var(--max), calc(100% - 40px)) !important;
  max-width: none !important;
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 251, 251, 0.92);
  border-bottom: 1px solid var(--line-soft);
  backdrop-filter: blur(14px);
}

.nav {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 850;
  color: var(--ink);
  letter-spacing: 0;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: white;
  background: linear-gradient(135deg, var(--navy), var(--teal));
  font-weight: 900;
  box-shadow: var(--shadow-subtle);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.nav-links a {
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -7px;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--teal);
  transition: transform 160ms ease-out;
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  transform: scaleX(1);
}

.btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 0 18px;
  font-size: 14px;
  font-weight: 800;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 140ms ease-out, background 140ms ease-out, border-color 140ms ease-out, color 140ms ease-out;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(1px);
}

.btn:focus-visible,
.nav a:focus-visible,
.card-link:focus-visible {
  outline: 3px solid rgba(31, 176, 157, 0.28);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--teal);
  color: white;
  box-shadow: 0 12px 28px rgba(31, 176, 157, 0.25);
}

.btn-secondary {
  background: white;
  color: var(--navy);
  border-color: var(--line);
}

.btn-ghost {
  color: var(--navy);
  border-color: var(--line);
  background: transparent;
}

.hero {
  padding: 76px 0 66px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 520px;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--teal);
}

h1,
h2,
h3,
p {
  margin: 0;
}

.hero h1 {
  font-size: clamp(42px, 5vw, 64px);
  line-height: 1.08;
  letter-spacing: 0;
  max-width: 760px;
}

.hero p {
  margin-top: 22px;
  max-width: 620px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.72;
  font-weight: 500;
}

.hero-actions {
  margin-top: 30px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-proof {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  max-width: 640px;
}

.proof-item {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.7);
}

.proof-item strong {
  display: block;
  font-size: 18px;
  color: var(--ink);
}

.proof-item span {
  display: block;
  margin-top: 4px;
  color: var(--soft);
  font-size: 13px;
  font-weight: 650;
}

.visual-panel {
  border-radius: 24px;
  overflow: hidden;
  background: white;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-prominent);
}

.visual-panel img {
  width: 100%;
  aspect-ratio: 1.35 / 1;
  object-fit: cover;
}

.section {
  padding: 76px 0;
}

.section-alt {
  background: var(--surface-secondary);
}

.section-dark {
  background: #071d28;
  color: white;
}

.section-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-head h2 {
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.18;
}

.section-head p {
  margin-top: 14px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.72;
}

.section-dark .section-head p,
.section-dark .muted {
  color: #b8d4d1;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.product-card,
.info-card,
.concept-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  box-shadow: var(--shadow-subtle);
}

.product-card {
  min-height: 236px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: "";
  width: 44px;
  height: 4px;
  border-radius: 999px;
  background: var(--teal);
  margin-bottom: 24px;
}

.product-card.clinical::before {
  background: var(--clinical);
}

.product-card.supply::before {
  background: var(--supply);
}

.product-card h3,
.info-card h3,
.concept-card h3 {
  font-size: 23px;
  line-height: 1.3;
}

.product-card p,
.info-card p,
.concept-card p {
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.68;
}

.tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--surface-secondary);
  color: var(--navy);
  font-size: 12px;
  font-weight: 800;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--teal);
  font-weight: 850;
  margin-top: auto;
  padding-top: 20px;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 42px;
  align-items: center;
}

.process {
  counter-reset: step;
  display: grid;
  gap: 14px;
}

.process li {
  counter-increment: step;
  list-style: none;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  align-items: start;
  padding: 20px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 16px;
}

.process li::before {
  content: counter(step, decimal-leading-zero);
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--navy);
  color: white;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  font-weight: 900;
}

.process strong {
  display: block;
  font-size: 18px;
}

.process span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  line-height: 1.6;
}

.tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.tab-button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: white;
  color: var(--muted);
  padding: 0 16px;
  cursor: pointer;
  font-weight: 850;
}

.tab-button[aria-selected="true"] {
  background: var(--navy);
  border-color: var(--navy);
  color: white;
}

.tab-panel {
  display: none;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 24px;
  align-items: stretch;
}

.tab-panel.active {
  display: grid;
}

.clinical-panel {
  border-radius: 24px;
  padding: 30px;
  background: white;
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-default);
}

.clinical-panel p {
  color: var(--muted);
}

.clinical-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
}

.clinical-list li {
  list-style: none;
  padding: 18px;
  border-radius: 14px;
  background: var(--surface-secondary);
  color: var(--muted);
  font-weight: 700;
}

.catalog-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 24px;
}

.catalog-menu {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: white;
  padding: 12px;
  align-self: start;
}

.catalog-menu a {
  display: block;
  padding: 16px;
  border-radius: 12px;
  color: var(--muted);
  font-weight: 800;
}

.catalog-menu a.active {
  background: var(--surface-secondary);
  color: var(--navy);
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.brand-tile {
  min-height: 142px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: white;
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-subtle);
}

.brand-tile strong {
  color: var(--ink);
  font-size: 20px;
}

.brand-tile span {
  color: var(--soft);
  font-size: 13px;
  font-weight: 750;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
}

.timeline div {
  background: white;
  padding: 24px;
}

.timeline b {
  display: block;
  color: var(--teal);
  font-size: 14px;
  margin-bottom: 12px;
}

.timeline strong {
  display: block;
  font-size: 20px;
  line-height: 1.32;
}

.timeline p {
  color: var(--muted);
  margin-top: 10px;
  line-height: 1.62;
}

.contact-band {
  padding: 44px;
  border-radius: 28px;
  background: var(--navy);
  color: white;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
}

.contact-band p {
  color: #b8d4d1;
  margin-top: 10px;
  line-height: 1.7;
}

.compare-hero {
  padding: 64px 0 36px;
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.concept-card {
  display: flex;
  flex-direction: column;
  min-height: 430px;
}

.concept-card img {
  width: 100%;
  aspect-ratio: 1.5 / 1;
  object-fit: cover;
  border-radius: 14px;
  margin-bottom: 20px;
  border: 1px solid var(--line-soft);
}

.concept-card .btn {
  margin-top: auto;
}

.note {
  border: 1px solid rgba(184, 130, 27, 0.35);
  background: rgba(184, 130, 27, 0.08);
  color: #67480c;
  border-radius: 16px;
  padding: 18px;
  line-height: 1.65;
}

footer {
  padding: 34px 0;
  border-top: 1px solid var(--line);
  color: var(--soft);
  font-size: 13px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

@media (max-width: 1024px) {
  .nav-links {
    display: none;
  }

  .hero-grid,
  .split,
  .tab-panel,
  .catalog-layout {
    grid-template-columns: 1fr;
  }

  .grid-4,
  .brand-grid,
  .timeline,
  .compare-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .container {
    width: min(var(--max), calc(100% - 28px)) !important;
  }

  .nav {
    height: 64px;
  }

  .brand span:last-child {
    display: none;
  }

  .hero {
    padding: 48px 0 54px;
  }

  .hero h1 {
    font-size: 38px;
  }

  .hero p {
    font-size: 16px;
  }

  .hero-proof,
  .grid-3,
  .grid-4,
  .brand-grid,
  .timeline,
  .compare-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 56px 0;
  }

  .contact-band {
    grid-template-columns: 1fr;
    padding: 28px;
  }

  .hero-actions,
  .contact-band .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .nav .btn {
    width: auto;
    padding: 0 16px;
  }
}