:root {
  --ink: #15191f;
  --muted: #66707f;
  --line: #dce1e8;
  --paper: #ffffff;
  --soft: #f5f6f7;
  --night: #0b0f14;
  --yellow: #f4b51c;
  --yellow-deep: #d89505;
  --steel: #25313d;
  --green: #1f6f59;
  --shadow: 0 16px 42px rgba(11, 15, 20, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
  background: var(--paper);
}

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

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

.wrap {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.topbar {
  background: var(--night);
  color: #e8edf3;
  font-size: 13px;
}

.topbar-inner,
.topbar-links,
.header-inner,
.hero-actions,
.hero-metrics,
.contact-points {
  display: flex;
  align-items: center;
}

.topbar-inner {
  min-height: 36px;
  justify-content: space-between;
  gap: 18px;
}

.topbar-links {
  gap: 18px;
  flex-wrap: wrap;
}

.lang-switch {
  display: inline-flex;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 4px;
}

.lang-btn {
  min-width: 44px;
  height: 26px;
  padding: 0 10px;
  border: 0;
  background: transparent;
  color: #e8edf3;
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.lang-btn.active {
  background: var(--yellow);
  color: var(--night);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(220, 225, 232, 0.95);
  backdrop-filter: blur(14px);
}

.header-inner {
  min-height: 76px;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 220px;
}

.brand-mark {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 6px;
  background: var(--night);
  border: 2px solid var(--yellow);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 20px;
  line-height: 1.1;
}

.brand small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  font-size: 14px;
  font-weight: 800;
}

.nav a {
  padding: 27px 0;
  border-bottom: 3px solid transparent;
}

.nav a:hover {
  border-color: var(--yellow);
}

.quote-link,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 4px;
  font-weight: 900;
}

.quote-link,
.btn-primary {
  background: var(--yellow);
  color: var(--night);
}

.quote-link:hover,
.btn-primary:hover {
  background: var(--yellow-deep);
}

.btn-ghost {
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.76);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #ffffff;
  color: var(--ink);
  font-size: 22px;
}

.hero {
  position: relative;
  min-height: 720px;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: #ffffff;
}

.hero-media,
.hero-media img,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(8, 12, 17, 0.95), rgba(8, 12, 17, 0.68) 45%, rgba(8, 12, 17, 0.28)),
    linear-gradient(0deg, rgba(8, 12, 17, 0.38), rgba(8, 12, 17, 0));
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 96px 0 70px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--yellow);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(40px, 6vw, 74px);
  line-height: 1.02;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 660px;
  margin: 22px 0 30px;
  color: #e7edf3;
  font-size: 18px;
}

.hero-actions {
  gap: 14px;
  flex-wrap: wrap;
}

.hero-metrics {
  width: min(820px, 100%);
  margin-top: 58px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(12px);
}

.hero-metrics div {
  flex: 1;
  padding: 18px 22px;
  border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-metrics div:last-child {
  border-right: 0;
}

.hero-metrics strong,
.hero-metrics span {
  display: block;
}

.hero-metrics strong {
  color: var(--yellow);
  font-size: 30px;
  line-height: 1;
}

.hero-metrics span {
  margin-top: 6px;
  color: #eef3f7;
  font-size: 13px;
}

.trust-strip {
  background: var(--yellow);
}

.trust-strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.trust-strip-grid div {
  min-height: 190px;
  padding: 26px 22px;
  border-left: 1px solid rgba(11, 15, 20, 0.16);
}

.trust-strip-grid div:last-child {
  border-right: 1px solid rgba(11, 15, 20, 0.16);
}

.trust-strip-grid span,
.trust-strip-grid strong,
.trust-strip-grid p {
  display: block;
}

.trust-strip-grid span {
  color: rgba(11, 15, 20, 0.54);
  font-weight: 900;
}

.trust-strip-grid strong {
  margin-top: 18px;
  font-size: 19px;
  line-height: 1.2;
}

.trust-strip-grid p {
  margin: 10px 0 0;
  color: rgba(11, 15, 20, 0.76);
  font-size: 14px;
}

.section {
  padding: 88px 0;
}

.section-head {
  max-width: 760px;
  margin: 0 0 34px;
}

.section-head h2,
.cred-copy h2,
.factory-copy h2,
.video-copy h2,
.contact-copy h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.08;
  color: var(--ink);
}

.section-head p,
.cred-copy p,
.factory-copy p,
.video-copy p {
  color: var(--muted);
}

.credibility {
  background: #ffffff;
}

.credibility-grid,
.factory-grid,
.video-layout,
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 54px;
  align-items: center;
}

.cred-media img,
.factory-media img {
  width: 100%;
  border-radius: 6px;
  box-shadow: var(--shadow);
  object-fit: cover;
}

.cred-media img {
  aspect-ratio: 2033 / 774;
}

.factory-media img {
  aspect-ratio: 5 / 4;
}

.cred-list,
.feature-list,
.video-points {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.cred-list span,
.feature-list div,
.video-points span {
  padding: 16px 18px;
  background: var(--soft);
  border-left: 4px solid var(--yellow);
  font-weight: 800;
}

.feature-list div {
  background: #ffffff;
  box-shadow: 0 8px 24px rgba(11, 15, 20, 0.06);
}

.feature-list strong,
.feature-list span {
  display: block;
}

.feature-list span {
  margin-top: 5px;
  color: var(--muted);
  font-weight: 400;
}

.products,
.inspection {
  background: var(--soft);
}

.product-grid,
.detail-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.product-card,
.detail-grid figure,
.video-card {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #ffffff;
  box-shadow: 0 10px 28px rgba(11, 15, 20, 0.08);
}

.product-card img,
.detail-grid img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #e8edf2;
}

.product-body {
  padding: 20px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 9px;
  border-radius: 3px;
  background: #e8f1ee;
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
}

.product-card h3 {
  margin: 14px 0 9px;
  font-size: 20px;
  line-height: 1.2;
}

.product-card p {
  min-height: 100px;
  margin: 0 0 18px;
  color: var(--muted);
}

.product-card a {
  color: #1f5e8c;
  font-weight: 900;
}

.factory,
.process {
  background: #ffffff;
}

.detail-grid {
  grid-template-columns: repeat(3, 1fr);
}

.detail-grid figcaption {
  padding: 14px 16px;
  font-weight: 800;
}

.videos {
  background: var(--night);
  color: #ffffff;
}

.videos .video-copy h2 {
  color: #ffffff;
}

.videos .video-copy p {
  color: #d9e1e9;
}

.videos .video-points span {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.video-stack {
  display: grid;
  gap: 18px;
}

.video-card {
  padding: 0 0 16px;
  background: #ffffff;
}

.video-card h3 {
  margin: 12px 16px 0;
  color: var(--ink);
  font-size: 18px;
}

.site-video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--night);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.steps div {
  min-height: 230px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #ffffff;
}

.steps span {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 28px;
  border-radius: 50%;
  background: var(--night);
  color: var(--yellow);
  font-weight: 900;
}

.steps strong {
  display: block;
  font-size: 20px;
}

.steps p {
  margin-bottom: 0;
  color: var(--muted);
}

.contact {
  background: var(--steel);
  color: #ffffff;
}

.contact-copy h2 {
  color: #ffffff;
}

.contact-copy p {
  color: #d9e1e9;
}

.contact-points {
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  margin-top: 28px;
}

.contact-points span {
  padding-left: 18px;
  border-left: 3px solid var(--yellow);
  color: #eef3f7;
}

.inquiry-form {
  display: grid;
  gap: 14px;
  padding: 28px;
  border-radius: 6px;
  background: #ffffff;
  color: var(--ink);
  box-shadow: var(--shadow);
}

.inquiry-form label {
  display: grid;
  gap: 7px;
  font-weight: 800;
}

.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  width: 100%;
  padding: 12px 13px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #ffffff;
  color: var(--ink);
  font: inherit;
}

.inquiry-form textarea {
  resize: vertical;
}

.form-note {
  min-height: 20px;
  margin: 0;
  color: var(--green);
  font-size: 14px;
}

.footer {
  padding: 44px 0;
  background: #080c11;
  color: #c9d2dc;
}

.floating-contact {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 25;
  display: grid;
  gap: 2px;
  min-width: 184px;
  padding: 12px 15px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 6px;
  background: var(--yellow);
  color: var(--night);
  box-shadow: 0 12px 32px rgba(11, 15, 20, 0.28);
  font-size: 13px;
  font-weight: 900;
}

.floating-contact strong {
  font-size: 16px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 36px;
}

.footer a {
  display: block;
  margin-top: 8px;
  color: #c9d2dc;
}

.footer strong {
  color: #ffffff;
}

.footer-brand {
  margin: 0 0 16px;
  color: #ffffff;
}

@media (max-width: 1080px) {
  .quote-link {
    display: none;
  }

  .nav {
    gap: 16px;
  }
}

@media (max-width: 940px) {
  .menu-toggle {
    display: grid;
    place-items: center;
  }

  .nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #ffffff;
    border-bottom: 1px solid var(--line);
  }

  .nav.open {
    display: flex;
  }

  .nav a {
    padding: 16px 20px;
    border-top: 1px solid var(--line);
    border-bottom: 0;
  }

  .trust-strip-grid,
  .product-grid,
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .credibility-grid,
  .factory-grid,
  .video-layout,
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .wrap {
    width: min(100% - 28px, 1180px);
  }

  .topbar-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 8px 0;
    gap: 6px;
  }

  .topbar-links {
    gap: 8px;
  }

  .brand {
    min-width: 0;
  }

  .brand strong {
    font-size: 17px;
  }

  .hero {
    min-height: 690px;
  }

  .hero-media img {
    object-position: 62% center;
  }

  .hero-content {
    padding-top: 62px;
  }

  .hero h1 {
    font-size: 40px;
  }

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

  .hero-metrics,
  .trust-strip-grid,
  .product-grid,
  .detail-grid,
  .steps,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-metrics {
    display: grid;
  }

  .hero-metrics div,
  .trust-strip-grid div {
    border-right: 0;
    border-left: 0;
    border-top: 1px solid rgba(11, 15, 20, 0.16);
  }

  .hero-metrics div {
    border-color: rgba(255, 255, 255, 0.2);
  }

  .section {
    padding: 64px 0;
  }

  .floating-contact {
    left: 14px;
    right: 14px;
    bottom: 14px;
    min-width: 0;
    text-align: center;
  }
}