:root {
  --bg: #071624;
  --panel: rgba(9, 28, 44, 0.72);
  --panel-strong: rgba(10, 33, 52, 0.92);
  --line: rgba(149, 212, 255, 0.18);
  --text: #eaf7ff;
  --muted: #9ec5df;
  --bright: #64d2ff;
  --gold: #ffe08a;
  --shadow: 0 24px 60px rgba(2, 10, 18, 0.4);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", "Trebuchet MS", system-ui, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(83, 190, 255, 0.22), transparent 30%),
    radial-gradient(circle at 85% 20%, rgba(29, 73, 185, 0.3), transparent 28%),
    linear-gradient(180deg, #071624 0%, #081c2a 40%, #06131d 100%);
  color: var(--text);
}

img { display: block; width: 100%; }
a { color: inherit; text-decoration: none; }

.page-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding-bottom: 48px;
}

.site-header {
  position: sticky;
  top: 12px;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
  margin-top: 14px;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: 24px;
  backdrop-filter: blur(18px);
  background: rgba(7, 20, 32, 0.75);
  box-shadow: var(--shadow);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 28px;
  flex: 0 0 auto;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 4px 8px rgba(49, 58, 148, 0.18));
}

.brand-stack { display: flex; flex-direction: column; gap: 2px; }
.brand strong { font-size: 1.25rem; letter-spacing: 0.18em; }
.brand span:last-child { color: var(--muted); font-size: 0.82rem; }

.site-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px;
}

.site-nav a { color: var(--muted); font-size: 0.94rem; }
.site-nav a:hover,
.site-nav a:focus-visible { color: var(--text); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-switch {
  display: inline-flex;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
}

.lang-btn {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
}

.lang-btn.is-active {
  background: linear-gradient(135deg, rgba(120, 226, 255, 0.24), rgba(18, 113, 244, 0.5));
  color: var(--text);
}

.call-chip,
.primary-btn,
.secondary-btn { transition: transform 180ms ease; }

.call-chip {
  padding: 12px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, #1f8ef1, #56d8ff);
  color: #04111d;
  font-weight: 700;
}

.call-chip:hover,
.primary-btn:hover,
.secondary-btn:hover { transform: translateY(-2px); }

.hero,
.section { margin-top: 28px; }

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.95fr;
  gap: 28px;
  align-items: center;
  min-height: calc(100vh - 120px);
  padding: 34px 0 22px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--bright);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.82rem;
}

.hero h1,
.section-head h2 {
  margin: 0;
  line-height: 1.02;
}

.hero h1 {
  max-width: 10ch;
  font-size: clamp(3rem, 7vw, 6rem);
}

.hero-lead {
  max-width: 62ch;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
}

.primary-btn {
  background: linear-gradient(135deg, #8af0ff, #1d8cff);
  color: #05111d;
  box-shadow: 0 18px 40px rgba(17, 130, 255, 0.28);
}

.secondary-btn {
  border: 1px solid rgba(123, 208, 255, 0.28);
  background: rgba(255, 255, 255, 0.04);
}

.hero-points {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.hero-points article,
.hero-card,
.info-panel,
.product-card,
.comparison-card,
.quality-points article,
.contact-card {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
}

.hero-points article {
  padding: 16px;
  border-radius: 20px;
}

.hero-points span {
  display: block;
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 8px;
}

.hero-points strong { font-size: 1rem; line-height: 1.5; }
.hero-visual { display: grid; gap: 18px; }

.hero-card {
  overflow: hidden;
  border-radius: 34px;
}

.hero-card-top { padding: 14px; }

.hero-card-top img {
  border-radius: 24px;
  aspect-ratio: 4 / 4.5;
  object-fit: cover;
}

.hero-card-bottom {
  padding: 26px;
  background:
    linear-gradient(135deg, rgba(32, 104, 205, 0.35), rgba(94, 213, 255, 0.1)),
    var(--panel-strong);
}

.hero-quote span {
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.76rem;
}

.hero-quote strong {
  display: block;
  margin-top: 10px;
  font-size: 1.55rem;
  line-height: 1.25;
}

.marquee-strip {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-top: 18px;
}

.strip-track {
  display: flex;
  gap: 24px;
  width: max-content;
  padding: 14px 0;
  color: var(--bright);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.82rem;
  animation: drift 30s linear infinite;
}

@keyframes drift {
  from { transform: translateX(0); }
  to { transform: translateX(-35%); }
}

.section { padding: 36px 0 10px; }
.section-head { max-width: 760px; }
.section-head h2 { font-size: clamp(2rem, 4vw, 3.3rem); }

.about-grid,
.product-layout,
.quality-grid,
.manufacturing-grid,
.contact-grid {
  display: grid;
  gap: 24px;
  margin-top: 26px;
}

.about-grid { grid-template-columns: 1.3fr 0.9fr; }

.about-copy {
  padding: 30px;
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(98, 216, 255, 0.08), transparent),
    rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line);
}

.about-copy p,
.product-card p,
.comparison-card p,
.quality-copy p,
.quality-points p,
.process-steps p,
.contact-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

.about-copy p + p,
.quality-copy p + p { margin-top: 18px; }

.info-panel {
  padding: 26px;
  border-radius: 28px;
}

.info-panel h3,
.product-card h3,
.comparison-card h3,
.quality-points h3,
.contact-card h3,
.process-steps h3 {
  margin: 0 0 16px;
  font-size: 1.18rem;
}

.info-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.info-list li {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(149, 212, 255, 0.12);
}

.info-list li:last-child { border-bottom: 0; }
.info-list span { color: var(--muted); font-size: 0.88rem; }

.product-layout {
  grid-template-columns: 1fr 1fr;
  align-items: start;
}

.product-highlight img,
.factory-visual img {
  height: 100%;
  min-height: 540px;
  object-fit: cover;
  border-radius: 30px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.product-cards { display: grid; gap: 18px; }

.product-card {
  padding: 24px;
  border-radius: 24px;
}

.product-card > span,
.process-steps span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(92, 214, 255, 0.12);
  color: var(--bright);
  font-weight: 700;
  margin-bottom: 12px;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 26px;
}

.comparison-card {
  padding: 26px;
  border-radius: 28px;
}

.comparison-card.featured {
  background:
    linear-gradient(180deg, rgba(93, 219, 255, 0.12), rgba(29, 140, 255, 0.08)),
    var(--panel-strong);
}

.comparison-card.muted { background: rgba(255, 255, 255, 0.03); }
.quality-grid { grid-template-columns: 0.95fr 1.05fr; }

.quality-copy {
  padding: 30px;
  border-radius: 28px;
  border: 1px solid var(--line);
  background:
    linear-gradient(160deg, rgba(255, 224, 138, 0.08), transparent 36%),
    rgba(255, 255, 255, 0.03);
}

.quality-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.quality-tags span {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(149, 212, 255, 0.16);
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.quality-points { display: grid; gap: 16px; }

.quality-points article {
  padding: 22px;
  border-radius: 24px;
}

.manufacturing-grid {
  grid-template-columns: 1.02fr 0.98fr;
  align-items: start;
}

.process-steps { display: grid; gap: 16px; }

.process-steps article {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.03);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 26px;
}

.gallery-card {
  overflow: hidden;
  min-height: 240px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  box-shadow: var(--shadow);
}

.gallery-card.wide { grid-column: span 2; }

.gallery-card img {
  height: 100%;
  object-fit: cover;
  transition: transform 260ms ease;
}

.gallery-card:hover img { transform: scale(1.04); }
.contact-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.contact-card {
  padding: 26px;
  border-radius: 28px;
}

.contact-card.primary {
  background:
    linear-gradient(160deg, rgba(86, 216, 255, 0.16), rgba(29, 140, 255, 0.12)),
    var(--panel-strong);
}

.contact-number {
  display: inline-block;
  margin: 2px 0 12px;
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--bright);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 42px;
  padding: 22px 0 6px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

@media (max-width: 1120px) {
  .site-header {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .site-nav,
  .header-actions { justify-content: center; }

  .hero,
  .about-grid,
  .product-layout,
  .quality-grid,
  .manufacturing-grid,
  .contact-grid,
  .comparison-grid { grid-template-columns: 1fr; }

  .hero {
    min-height: auto;
    padding-top: 18px;
  }

  .hero h1 { max-width: none; }
  .hero-points { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .product-highlight img,
  .factory-visual img { min-height: 420px; }
}

@media (max-width: 760px) {
  .page-shell { width: min(100% - 20px, 1200px); }

  .site-header {
    top: 8px;
    padding: 14px;
    border-radius: 20px;
  }

  .hero h1 { font-size: clamp(2.4rem, 12vw, 4rem); }
  .section-head h2 { font-size: clamp(1.8rem, 9vw, 2.6rem); }
  .hero-points { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-card.wide { grid-column: auto; }

  .product-highlight img,
  .factory-visual img { min-height: 320px; }
}