:root {
  --bg: #f6f8fc;
  --surface: #ffffff;
  --surface-soft: #eef4ff;
  --text: #07162f;
  --muted: #5f6f86;
  --brand: #0069fb;
  --brand-strong: #042149;
  --brand-light: #e9f2ff;
  --line: #dfe6f1;
  --eyerest: #2b9189;
  --eyerest-dark: #113d45;
  --eyerest-soft: #eaf8f4;
  --shadow-sm: 0 10px 30px rgba(4, 33, 73, 0.08);
  --shadow-lg: 0 24px 70px rgba(4, 33, 73, 0.14);
  --radius-sm: 14px;
  --radius-md: 22px;
  --radius-lg: 32px;
  --container: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 8% 4%, rgba(0, 105, 251, 0.09), transparent 30rem),
    radial-gradient(circle at 90% 20%, rgba(43, 145, 137, 0.07), transparent 26rem),
    var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.container {
  width: min(calc(100% - 40px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(246, 248, 252, 0.86);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(223, 230, 241, 0.72);
}

.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--brand-strong);
  font-size: 1.13rem;
}

.brand img { width: 42px; height: 42px; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a {
  text-decoration: none;
  color: #31445f;
  font-weight: 650;
  padding: 10px 13px;
  border-radius: 12px;
  transition: background .2s ease, color .2s ease;
}
.nav-links a:hover { background: #fff; color: var(--brand); }

.hero { padding: 108px 0 84px; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr);
  gap: 72px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  font-weight: 800;
  color: var(--brand);
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}

.hero h1, .page-hero h1 {
  margin: 18px 0 18px;
  max-width: 820px;
  font-size: clamp(2.85rem, 7vw, 5.9rem);
  line-height: .98;
  letter-spacing: -0.065em;
  color: var(--brand-strong);
}
.hero h1 span { color: var(--brand); }
.hero-lead {
  max-width: 690px;
  font-size: clamp(1.08rem, 2vw, 1.3rem);
  color: var(--muted);
  margin: 0 0 32px;
}
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 750;
  border: 1px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--brand-strong); color: #fff; box-shadow: 0 12px 26px rgba(4, 33, 73, .18); }
.btn-primary:hover { box-shadow: 0 16px 32px rgba(4, 33, 73, .24); }
.btn-secondary { background: rgba(255,255,255,.72); color: var(--brand-strong); border-color: var(--line); }
.btn-secondary:hover { background: #fff; }
.btn-eyerest { background: var(--eyerest-dark); color: #fff; box-shadow: 0 12px 26px rgba(17,61,69,.16); }
.btn-quiet { background: var(--eyerest-soft); color: var(--eyerest-dark); border-color: #d2eee5; }
.btn-disabled { opacity: .58; pointer-events: none; }

.hero-art {
  position: relative;
  min-height: 420px;
  display: grid;
  place-items: center;
}
.hero-orb {
  position: absolute;
  width: min(410px, 92vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: linear-gradient(145deg, #ffffff 0%, #e7f0ff 100%);
  box-shadow: var(--shadow-lg);
}
.hero-orb::before,
.hero-orb::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0, 105, 251, .14);
}
.hero-orb::before { inset: 28px; }
.hero-orb::after { inset: 72px; }
.hero-logo {
  position: relative;
  z-index: 2;
  width: min(310px, 70vw);
  filter: drop-shadow(0 16px 30px rgba(4,33,73,.12));
}
.hero-chip {
  position: absolute;
  z-index: 3;
  background: rgba(255,255,255,.9);
  border: 1px solid rgba(223,230,241,.95);
  box-shadow: var(--shadow-sm);
  border-radius: 999px;
  padding: 10px 14px;
  font-weight: 750;
  color: #2f4666;
  font-size: .86rem;
}
.hero-chip.one { top: 60px; right: -4px; }
.hero-chip.two { bottom: 58px; left: -8px; }

.section { padding: 84px 0; }
.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: end;
  margin-bottom: 32px;
}
.section-heading h2 {
  margin: 8px 0 0;
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1.05;
  letter-spacing: -.045em;
  color: var(--brand-strong);
}
.section-heading p { margin: 0; max-width: 520px; color: var(--muted); }

.product-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 22px; }
.product-card {
  grid-column: span 7;
  position: relative;
  overflow: hidden;
  min-height: 390px;
  padding: 34px;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, #ffffff 12%, #f0fbf7 100%);
  border: 1px solid #dfeee9;
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: #c2e1d7; }
.product-card h3 { margin: 22px 0 8px; font-size: 2rem; letter-spacing: -.04em; color: var(--eyerest-dark); }
.product-card p { max-width: 540px; margin: 0; color: #567073; }
.product-card .product-mark { width: 86px; height: 86px; border-radius: 22px; background: #fff; padding: 10px; box-shadow: 0 12px 30px rgba(17,61,69,.12); }
.product-card .open-label { position: absolute; left: 34px; bottom: 30px; font-weight: 800; color: var(--eyerest); }
.product-card .decor {
  position: absolute;
  width: 270px;
  right: -54px;
  bottom: -62px;
  opacity: .15;
  transform: rotate(-8deg);
}

.product-placeholder {
  grid-column: span 5;
  min-height: 390px;
  padding: 34px;
  border-radius: var(--radius-lg);
  border: 1px dashed #c8d3e2;
  background: rgba(255,255,255,.55);
  display: flex;
  flex-direction: column;
  justify-content: end;
}
.product-placeholder span { color: var(--brand); font-weight: 800; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; }
.product-placeholder h3 { margin: 9px 0 8px; color: var(--brand-strong); font-size: 1.7rem; }
.product-placeholder p { margin: 0; color: var(--muted); }

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.info-card {
  padding: 30px;
  background: rgba(255,255,255,.78);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}
.info-card h3 { margin: 0 0 10px; font-size: 1.22rem; color: var(--brand-strong); }
.info-card p { margin: 0; color: var(--muted); }
.info-icon {
  width: 42px; height: 42px; display: grid; place-items: center;
  background: var(--brand-light); color: var(--brand); border-radius: 12px;
  margin-bottom: 18px; font-weight: 900;
}

.contact-panel {
  padding: 42px;
  border-radius: var(--radius-lg);
  background: var(--brand-strong);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  box-shadow: var(--shadow-lg);
}
.contact-panel h2 { margin: 0 0 7px; font-size: clamp(1.8rem, 4vw, 2.8rem); letter-spacing: -.04em; }
.contact-panel p { margin: 0; color: #cbd8e8; }
.contact-panel .btn { background: #fff; color: var(--brand-strong); white-space: nowrap; }

.site-footer { padding: 38px 0 52px; color: #6b7b91; font-size: .93rem; }
.footer-row { display: flex; justify-content: space-between; gap: 20px; align-items: center; border-top: 1px solid var(--line); padding-top: 28px; }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--brand); }

.page-hero { padding: 92px 0 62px; }
.page-hero h1 { font-size: clamp(2.6rem, 6vw, 5.3rem); }
.breadcrumb { color: #76859a; font-size: .92rem; margin-bottom: 22px; }
.breadcrumb a { text-decoration: none; color: var(--brand); font-weight: 700; }

.product-hero-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 62px; align-items: center; }
.product-showcase {
  min-height: 390px;
  border-radius: 34px;
  background: linear-gradient(145deg, #fff 10%, #e9f7f2 100%);
  border: 1px solid #dbeee7;
  display: grid;
  place-items: center;
  padding: 34px;
  box-shadow: var(--shadow-lg);
}
.product-showcase img { max-height: 260px; width: 100%; object-fit: contain; }
.product-lead { color: var(--muted); font-size: 1.13rem; max-width: 650px; }
.badges { display: flex; flex-wrap: wrap; gap: 10px; margin: 23px 0 30px; }
.badge { padding: 7px 11px; border-radius: 999px; background: var(--eyerest-soft); color: var(--eyerest-dark); border: 1px solid #d1ede4; font-size: .85rem; font-weight: 750; }

.details-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 22px; }
.detail-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 30px;
  box-shadow: var(--shadow-sm);
}
.detail-card h2, .detail-card h3 { margin: 0 0 12px; color: var(--brand-strong); letter-spacing: -.025em; }
.detail-card p { color: var(--muted); margin: 0 0 14px; }
.detail-card p:last-child { margin-bottom: 0; }
.detail-list { margin: 0; padding-left: 20px; color: var(--muted); }
.detail-list li + li { margin-top: 8px; }
.link-list { display: grid; gap: 10px; margin-top: 16px; }
.link-tile {
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  padding: 15px 16px; border-radius: 14px; border: 1px solid var(--line);
  text-decoration: none; background: #fbfcfe; font-weight: 720;
}
.link-tile:hover { border-color: #aacdfd; color: var(--brand); }

.legal-wrap { max-width: 820px; margin: 0 auto; }
.legal-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-md); padding: clamp(24px, 5vw, 46px); box-shadow: var(--shadow-sm); }
.legal-card h1 { margin-top: 0; font-size: clamp(2.2rem, 6vw, 4rem); line-height: 1; letter-spacing: -.05em; color: var(--brand-strong); }
.legal-card h2 { margin-top: 34px; color: var(--brand-strong); }
.legal-card p, .legal-card li { color: var(--muted); }
.notice { padding: 16px 18px; border-radius: 14px; background: #fff8e7; border: 1px solid #f3dda3; color: #6d5620; margin: 22px 0; }

@media (max-width: 900px) {
  .hero { padding-top: 74px; }
  .hero-grid, .product-hero-grid, .details-grid { grid-template-columns: 1fr; gap: 38px; }
  .hero-art { min-height: 360px; order: -1; }
  .hero-orb { width: 330px; }
  .hero-logo { width: 250px; }
  .product-card, .product-placeholder { grid-column: 1 / -1; }
  .about-grid { grid-template-columns: 1fr; }
  .section-heading { align-items: start; flex-direction: column; }
}

@media (max-width: 680px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .nav { min-height: 68px; }
  .brand img { width: 36px; height: 36px; }
  .nav-links a:not(.nav-contact) { display: none; }
  .nav-links .nav-contact { padding: 9px 12px; background: #fff; border: 1px solid var(--line); }
  .hero { padding: 54px 0 62px; }
  .hero-art { min-height: 300px; }
  .hero-orb { width: 270px; }
  .hero-logo { width: 205px; }
  .hero-chip { font-size: .74rem; padding: 8px 10px; }
  .hero-chip.one { top: 32px; right: 0; }
  .hero-chip.two { bottom: 34px; left: 0; }
  .section { padding: 62px 0; }
  .product-card, .product-placeholder { min-height: 340px; padding: 26px; }
  .product-card .open-label { left: 26px; bottom: 24px; }
  .contact-panel { padding: 30px 24px; align-items: flex-start; flex-direction: column; }
  .contact-panel .btn { width: 100%; }
  .footer-row { align-items: flex-start; flex-direction: column; }
  .page-hero { padding: 60px 0 38px; }
  .product-showcase { min-height: 290px; padding: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}