:root {
  --color-bg: #f7f5f0;
  --color-bg-alt: #e8e5dc;
  --color-surface: #ffffff;
  --color-ink: #17202a;
  --color-muted: #65717d;
  --color-soft: #eef0ef;
  --color-dark: #111820;
  --color-dark-2: #1a2430;
  --color-gold: #c9a45c;
  --color-gold-2: #e8cf91;
  --color-border: #d8d3c8;
  --color-success: #2f7d5c;
  --shadow-soft: 0 18px 50px rgba(17, 24, 32, .11);
  --radius: 8px;
  --radius-sm: 6px;
  --max: 1180px;
  --font-sans: Inter, Arial, Helvetica, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.65;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1rem; }
h1, h2, h3, h4 { margin: 0; line-height: 1.12; letter-spacing: 0; }
h1 { font-size: clamp(2.55rem, 6vw, 5.85rem); max-width: 920px; }
h2 { font-size: clamp(2rem, 4vw, 3.65rem); }
h3 { font-size: 1.35rem; }
button, input, textarea, select { font: inherit; }

.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.section { padding: 92px 0; }
.section.tight { padding: 64px 0; }
.section.dark { color: #f8fafc; background: var(--color-dark); }
.section.alt { background: var(--color-bg-alt); }
.eyebrow {
  color: var(--color-gold);
  font-size: .76rem;
  font-weight: 750;
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.lead { color: var(--color-muted); font-size: 1.08rem; max-width: 730px; }
.dark .lead { color: #cbd5df; }
.section-head {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(280px, .65fr);
  gap: 42px;
  align-items: end;
  margin-bottom: 38px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 245, 240, .92);
  border-bottom: 1px solid rgba(216, 211, 200, .86);
  backdrop-filter: blur(14px);
}
.nav {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 170px;
}
.brand-mark {
  width: 42px;
  height: 42px;
  object-fit: contain;
}
.brand-text {
  display: grid;
  line-height: 1.05;
}
.brand-text strong { font-size: 1.04rem; }
.brand-text span { color: var(--color-muted); font-size: .75rem; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: #303a45;
  font-size: .94rem;
}
.nav-links a { padding: 27px 0 24px; border-bottom: 3px solid transparent; }
.nav-links a.active, .nav-links a:hover { color: var(--color-ink); border-color: var(--color-gold); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.lang-switch {
  display: inline-flex;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  overflow: hidden;
  background: #fff;
}
.lang-switch a {
  padding: 8px 10px;
  color: var(--color-muted);
  font-size: .82rem;
}
.lang-switch a.active { background: var(--color-dark); color: #fff; }
.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
}
.menu-toggle span { display: block; width: 20px; height: 2px; margin: 5px auto; background: var(--color-ink); }

.btn {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 12px 20px;
  border: 1px solid var(--color-border);
  font-weight: 750;
  transition: transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: var(--color-gold); color: var(--color-dark); border-color: var(--color-gold); }
.btn.primary:hover { background: var(--color-gold-2); }
.btn.dark { background: var(--color-dark); color: #fff; border-color: var(--color-dark); }
.btn.light { color: #fff; border-color: rgba(255,255,255,.46); }
.btn.block { width: 100%; }

.hero {
  min-height: calc(100vh - 76px);
  position: relative;
  color: #fff;
  display: flex;
  align-items: stretch;
  overflow: hidden;
  background: var(--color-dark);
}
.hero-media { position: absolute; inset: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(10,16,23,.78), rgba(10,16,23,.46) 42%, rgba(10,16,23,.04)),
    linear-gradient(180deg, rgba(10,16,23,.04), rgba(10,16,23,.44));
}
.hero-inner {
  position: relative;
  z-index: 1;
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 92px 0 42px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  align-items: end;
  gap: 42px;
}
.hero-copy { padding-bottom: 44px; }
.hero-subtitle { color: #d9e3ea; font-size: 1.15rem; max-width: 720px; margin: 20px 0 28px; }
.hero-actions, .cta-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.hero-proof {
  display: grid;
  gap: 12px;
  padding: 18px;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: var(--radius);
  background: rgba(17, 24, 32, .72);
}
.proof-item {
  padding: 16px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.08);
}
.proof-item strong { display: block; font-size: 1.7rem; color: var(--color-gold-2); line-height: 1; margin-bottom: 6px; }
.proof-item span { color: #dce5ec; font-size: .9rem; }

.trust-strip {
  background: var(--color-dark);
  color: #fff;
  border-top: 1px solid rgba(255,255,255,.1);
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,.12);
}
.trust-grid div { background: var(--color-dark); padding: 22px 20px; }
.trust-grid strong { display: block; color: var(--color-gold-2); font-size: 1.35rem; }
.trust-grid span { color: #b8c3cc; font-size: .9rem; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.card-body { padding: 24px; }
.card-image { aspect-ratio: 4 / 3; overflow: hidden; background: #d9d9d9; }
.card-image.wide { aspect-ratio: 16 / 9; }
.card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.card:hover .card-image img { transform: scale(1.035); }
.card .meta { color: var(--color-gold); font-size: .78rem; font-weight: 750; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 10px; }
.card p { color: var(--color-muted); margin: 12px 0 18px; }
.text-link { color: var(--color-ink); font-weight: 800; border-bottom: 2px solid var(--color-gold); }

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(320px, .72fr);
  gap: 42px;
  align-items: center;
}
.image-stack { display: grid; grid-template-columns: .82fr 1fr; gap: 16px; align-items: end; }
.image-stack img { border-radius: var(--radius); height: 100%; object-fit: cover; border: 1px solid var(--color-border); }
.image-stack img:first-child { aspect-ratio: 3 / 4; }
.image-stack img:last-child { aspect-ratio: 4 / 3; }
.check-list { display: grid; gap: 12px; margin: 24px 0; padding: 0; list-style: none; }
.check-list li { display: flex; gap: 10px; color: #313d49; }
.check-list li::before { content: ""; width: 9px; height: 9px; margin-top: 9px; border-radius: 50%; background: var(--color-gold); flex: 0 0 auto; }

.feature-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.feature {
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: rgba(255,255,255,.55);
}
.feature .icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--color-dark);
  color: var(--color-gold-2);
  margin-bottom: 18px;
  font-weight: 900;
}
.feature p { color: var(--color-muted); margin: 10px 0 0; }

.page-hero {
  padding: 86px 0 58px;
  color: #fff;
  background: linear-gradient(120deg, rgba(17,24,32,.94), rgba(17,24,32,.82)), url('../images/4.jpg') center/cover;
}
.page-hero p { color: #d7e0e6; max-width: 720px; font-size: 1.08rem; }
.crumbs { color: #c3ccd4; font-size: .9rem; margin-bottom: 20px; }

.product-detail {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 34px;
  align-items: start;
}
.gallery-main img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; border-radius: var(--radius); }
.thumb-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 10px; }
.thumb-grid img { aspect-ratio: 1; object-fit: cover; border-radius: var(--radius-sm); border: 1px solid var(--color-border); }
.spec-table { width: 100%; border-collapse: collapse; margin-top: 22px; background: #fff; border: 1px solid var(--color-border); }
.spec-table th, .spec-table td { padding: 14px 16px; border-bottom: 1px solid var(--color-border); text-align: left; vertical-align: top; }
.spec-table th { width: 34%; background: var(--color-bg-alt); font-size: .86rem; text-transform: uppercase; letter-spacing: .06em; }
.sticky-inquiry {
  position: sticky;
  top: 96px;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.field { display: grid; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field label { color: #34404c; font-size: .86rem; font-weight: 750; }
.field input, .field textarea, .field select {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  color: var(--color-ink);
  padding: 13px 14px;
  outline: none;
}
.field textarea { min-height: 118px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--color-gold); box-shadow: 0 0 0 3px rgba(201,164,92,.18); }
.form-note { color: var(--color-muted); font-size: .86rem; margin-top: 12px; }

.faq-list { display: grid; gap: 12px; }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
}
.faq-question {
  width: 100%;
  min-height: 58px;
  padding: 17px 20px;
  border: 0;
  background: transparent;
  color: var(--color-ink);
  display: flex;
  justify-content: space-between;
  gap: 18px;
  text-align: left;
  font-weight: 800;
  cursor: pointer;
}
.faq-answer { display: none; padding: 0 20px 18px; color: var(--color-muted); }
.faq-item.open .faq-answer { display: block; }

.cta-band {
  color: #fff;
  background:
    linear-gradient(120deg, rgba(17,24,32,.94), rgba(17,24,32,.76)),
    url('../images/1.jpg') center/cover;
  border-radius: var(--radius);
  padding: 46px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
}
.cta-band p { color: #dce5ec; max-width: 680px; }

.site-footer {
  color: #dce5ec;
  background: #0d131a;
  padding: 58px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr .8fr 1fr;
  gap: 32px;
}
.site-footer h3, .site-footer h4 { color: #fff; margin-bottom: 14px; }
.site-footer p, .site-footer a { color: #aeb9c4; }
.footer-links { display: grid; gap: 8px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  color: #8d98a4;
  margin-top: 34px;
  padding-top: 20px;
  font-size: .9rem;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}
.mobile-cta {
  display: none;
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  z-index: 60;
  gap: 10px;
}
.mobile-cta .btn { flex: 1; box-shadow: var(--shadow-soft); }

@media (max-width: 1020px) {
  .nav-links {
    position: fixed;
    left: 0;
    right: 0;
    top: 76px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: 10px 20px 18px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 0; border-bottom: 1px solid var(--color-border); }
  .menu-toggle { display: block; }
  .nav-actions > .btn { display: none; }
  .hero-inner, .section-head, .split-layout, .product-detail, .cta-band { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .hero-inner { padding-top: 82px; }
  .hero-proof { grid-template-columns: repeat(3, 1fr); }
  .grid-4, .feature-row { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .sticky-inquiry { position: static; }
}

@media (max-width: 720px) {
  .container { width: min(100% - 28px, var(--max)); }
  .section { padding: 58px 0; }
  .nav { height: 68px; }
  .brand-text span { display: none; }
  .brand-mark { width: 38px; height: 38px; }
  .nav-links { top: 68px; }
  .hero-inner { width: min(100% - 28px, var(--max)); padding: 62px 0 32px; }
  .hero-copy { padding-bottom: 18px; }
  .hero-subtitle { font-size: 1rem; }
  .hero-proof, .trust-grid, .grid-3, .grid-4, .feature-row, .footer-grid, .form-grid { grid-template-columns: 1fr; }
  .trust-grid { gap: 0; }
  .image-stack { grid-template-columns: 1fr; }
  .cta-band { padding: 28px; }
  .page-hero { padding: 58px 0 42px; }
  .mobile-cta { display: flex; }
  body { padding-bottom: 76px; }
}