:root {
  --ink: #172126;
  --muted: #61717a;
  --line: #dbe7ea;
  --soft: #f4faf9;
  --soft-2: #eef5f7;
  --teal: #009ca6;
  --teal-dark: #05737c;
  --green: #31b47b;
  --navy: #103846;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(16, 56, 70, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
}

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

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

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

.top-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  min-height: 40px;
  padding: 8px 24px;
  color: #eefbfa;
  background: var(--navy);
  font-size: 13px;
}

.strip-link {
  color: #9df0e6;
  font-weight: 700;
  white-space: nowrap;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 0 6vw;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: var(--white);
  background: linear-gradient(135deg, var(--teal), var(--green));
  border-radius: 8px;
  font-size: 14px;
  letter-spacing: 0;
}

.brand-name {
  color: var(--navy);
  font-size: 25px;
  letter-spacing: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #273941;
  font-size: 15px;
  font-weight: 700;
}

.site-nav a {
  position: relative;
  padding: 26px 0;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 18px;
  height: 2px;
  background: var(--teal);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a.active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--navy);
}

.hero {
  position: relative;
  min-height: 690px;
  overflow: hidden;
  display: grid;
  align-items: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.86) 38%, rgba(255, 255, 255, 0.28) 70%, rgba(255, 255, 255, 0.08) 100%);
}

.hero-content {
  position: relative;
  width: min(650px, 88vw);
  margin-left: 6vw;
  padding: 90px 0;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 22px;
  color: var(--navy);
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.04;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  color: var(--navy);
  font-size: clamp(28px, 3.1vw, 44px);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  color: var(--navy);
  font-size: 21px;
  line-height: 1.2;
}

.hero-copy {
  max-width: 560px;
  margin-bottom: 30px;
  color: #485b64;
  font-size: 18px;
}

.hero-actions,
.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 7px;
  font-weight: 800;
  line-height: 1.15;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

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

.btn-primary {
  color: var(--white);
  background: var(--teal);
  box-shadow: 0 13px 26px rgba(0, 156, 166, 0.22);
}

.btn-primary:hover {
  background: var(--teal-dark);
}

.btn-secondary {
  color: var(--navy);
  background: var(--white);
  border-color: #bfd5da;
}

.btn-light {
  color: var(--navy);
  background: var(--white);
}

.btn-card {
  width: 100%;
  min-height: 44px;
  color: var(--white);
  background: var(--teal);
}

.btn-small {
  min-height: 40px;
  padding: 10px 14px;
  color: var(--white);
  background: var(--teal);
  font-size: 14px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  width: min(560px, 100%);
}

.hero-metrics div {
  min-height: 88px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(191, 213, 218, 0.8);
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(16, 56, 70, 0.08);
}

.hero-metrics strong {
  display: block;
  color: var(--navy);
  font-size: 24px;
  line-height: 1;
}

.hero-metrics span {
  display: block;
  margin-top: 9px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.section {
  width: min(1180px, 88vw);
  margin: 0 auto;
  padding: 86px 0;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(280px, 1.1fr);
  gap: 58px;
  align-items: end;
  border-bottom: 1px solid var(--line);
}

.intro-grid p:last-child {
  color: var(--muted);
  font-size: 18px;
}

.section-head,
.coa-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 30px;
}

.text-link {
  color: var(--teal-dark);
  font-weight: 800;
}

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

.product-card {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 40px rgba(16, 56, 70, 0.08);
}

.product-media {
  position: relative;
  display: block;
  aspect-ratio: 1.08;
  background: var(--soft);
  overflow: hidden;
}

.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 240ms ease;
}

.product-card:hover .product-media img {
  transform: scale(1.035);
}

.product-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 7px 10px;
  color: var(--navy);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.product-body {
  padding: 24px;
}

.product-kicker {
  margin-bottom: 8px;
  color: var(--teal-dark);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.product-body h3 {
  margin-bottom: 10px;
}

.product-body p {
  color: var(--muted);
}

.product-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0;
}

.product-meta span {
  padding: 7px 10px;
  color: #40525a;
  background: var(--soft-2);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.quality-band {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 1.1fr);
  gap: 42px;
  align-items: center;
  padding: 82px 6vw;
  color: var(--white);
  background: linear-gradient(135deg, #0d3d4a, #0c7d84 55%, #21a371);
}

.quality-band h2,
.quality-band .eyebrow {
  color: var(--white);
}

.quality-band p {
  color: rgba(255, 255, 255, 0.82);
}

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

.quality-list div {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 4px 16px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
}

.quality-list span {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  color: #073d42;
  background: var(--white);
  border-radius: 7px;
  font-weight: 900;
}

.quality-list strong {
  font-size: 18px;
}

.quality-list p {
  margin: 0;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(260px, 0.75fr) minmax(420px, 1.25fr);
  gap: 34px;
  align-items: stretch;
}

.feature-panel {
  padding: 34px;
  color: var(--white);
  background: var(--navy);
  border-radius: 8px;
}

.feature-panel h2,
.feature-panel .eyebrow {
  color: var(--white);
}

.feature-panel p {
  color: rgba(255, 255, 255, 0.78);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.service-item {
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.service-icon {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 38px;
  margin-bottom: 18px;
  color: var(--teal-dark);
  background: var(--soft);
  border-radius: 7px;
  font-size: 13px;
  font-weight: 900;
}

.service-item p {
  color: var(--muted);
}

.cta-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  width: min(1180px, 88vw);
  margin: 0 auto 86px;
  padding: 34px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.cta-section h2 {
  margin-bottom: 0;
  font-size: clamp(26px, 3vw, 38px);
}

.site-footer {
  display: grid;
  grid-template-columns: 1.5fr 0.7fr 0.7fr 1.2fr;
  gap: 36px;
  padding: 58px 6vw;
  color: #d7e6e9;
  background: #102b34;
}

.site-footer h3 {
  margin-bottom: 14px;
  color: var(--white);
  font-size: 16px;
}

.site-footer a {
  display: block;
  margin-bottom: 9px;
}

.site-footer p {
  max-width: 390px;
  color: #a9bdc3;
}

.footer-brand {
  margin-bottom: 18px;
}

.footer-brand .brand-name {
  color: var(--white);
}

.floating-wa {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 120px;
  min-height: 48px;
  padding: 12px 18px;
  color: var(--white);
  background: #1dbb6a;
  border-radius: 999px;
  box-shadow: 0 12px 30px rgba(10, 95, 59, 0.28);
  font-weight: 900;
}

.page-hero {
  display: grid;
  align-items: end;
  min-height: 360px;
  padding: 80px 6vw;
  background: linear-gradient(135deg, #eaf7f7 0%, #ffffff 54%, #dcf4eb 100%);
}

.page-hero > div {
  width: min(820px, 88vw);
}

.page-hero h1 {
  font-size: clamp(38px, 5vw, 62px);
}

.page-hero p:last-child {
  max-width: 690px;
  color: var(--muted);
  font-size: 18px;
}

.shop-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 34px;
  align-items: start;
}

.shop-filter {
  position: sticky;
  top: 102px;
  padding: 22px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.shop-filter h2 {
  font-size: 22px;
}

.shop-filter a:not(.btn) {
  display: block;
  padding: 10px 0;
  color: #40525a;
  border-bottom: 1px solid var(--line);
  font-weight: 800;
}

.shop-filter a.active {
  color: var(--teal-dark);
}

.filter-note {
  margin-top: 24px;
}

.filter-note p {
  color: var(--muted);
  font-size: 14px;
}

.shop-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
  color: var(--muted);
}

.shop-toolbar p,
.shop-toolbar span {
  margin: 0;
  font-weight: 800;
}

.shop-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.oem-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 32px;
  padding: 30px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

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

.coa-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 30px;
  align-items: start;
}

.coa-card,
.document-preview,
.tab-card,
.contact-card,
.inquiry-form,
.compliance-box {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 40px rgba(16, 56, 70, 0.07);
}

.coa-card {
  padding: 30px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  color: #33484f;
  font-size: 15px;
}

th,
td {
  padding: 15px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--navy);
  background: var(--soft);
  font-size: 13px;
  text-transform: uppercase;
}

.document-preview {
  padding: 20px;
  background: var(--soft);
}

.doc-paper {
  min-height: 420px;
  padding: 28px;
  background: var(--white);
  border: 1px solid #cddde1;
  border-radius: 6px;
}

.doc-logo {
  display: inline-block;
  margin-bottom: 36px;
  color: var(--teal-dark);
  font-weight: 900;
}

.doc-paper h3 {
  margin-bottom: 24px;
}

.doc-paper dl {
  display: grid;
  gap: 12px;
  margin: 0;
}

.doc-paper dl div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--line);
}

.doc-paper dt {
  color: var(--muted);
}

.doc-paper dd {
  margin: 0;
  color: var(--navy);
  font-weight: 800;
  text-align: right;
}

.doc-lines {
  display: grid;
  gap: 10px;
  margin-top: 36px;
}

.doc-lines span {
  height: 10px;
  background: var(--soft-2);
  border-radius: 999px;
}

.quality-notes {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 34px;
}

.quality-notes p {
  color: var(--muted);
}

.note-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.note-grid div {
  padding: 22px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.note-grid strong,
.note-grid span {
  display: block;
}

.note-grid span {
  margin-top: 8px;
  color: var(--muted);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(320px, 1.05fr);
  gap: 44px;
  align-items: center;
}

.about-image {
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.about-image img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.about-copy p {
  color: var(--muted);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.about-stats div {
  padding: 18px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.about-stats strong,
.about-stats span {
  display: block;
}

.about-stats strong {
  color: var(--navy);
  font-size: 26px;
}

.about-stats span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.compliance-box {
  margin-bottom: 86px;
  padding: 34px;
  background: var(--soft);
  box-shadow: none;
}

.compliance-box p {
  max-width: 820px;
  color: var(--muted);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(360px, 1.1fr);
  gap: 32px;
  align-items: start;
}

.contact-card,
.inquiry-form {
  padding: 30px;
}

.contact-card p {
  color: var(--muted);
}

.contact-methods {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.method {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 2px 14px;
  align-items: center;
  padding: 16px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.method span {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  color: var(--white);
  background: var(--teal);
  border-radius: 7px;
  font-weight: 900;
}

.method small {
  color: var(--muted);
}

.form-row {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

.form-row.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

label {
  color: var(--navy);
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  padding: 13px 14px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid #c9dbe0;
  border-radius: 7px;
}

textarea {
  resize: vertical;
}

.form-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.product-page {
  background: linear-gradient(180deg, var(--soft) 0, #fff 360px);
}

.product-detail {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(360px, 1.1fr);
  gap: 46px;
  align-items: center;
  padding-top: 72px;
}

.detail-media {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.detail-media img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.detail-lead {
  color: #485b64;
  font-size: 18px;
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 28px 0;
}

.spec-grid div {
  padding: 18px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.spec-grid span,
.spec-grid strong {
  display: block;
}

.spec-grid span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.spec-grid strong {
  margin-top: 5px;
  color: var(--navy);
}

.product-notice {
  margin: 0;
  padding: 14px;
  color: #54656c;
  background: #fff9e6;
  border: 1px solid #eadca9;
  border-radius: 8px;
  font-size: 13px;
}

.detail-tabs {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  padding-top: 0;
}

.tab-card {
  padding: 28px;
}

.tab-card h2 {
  font-size: 25px;
}

.tab-card th {
  width: 34%;
  background: var(--white);
}

.check-list {
  display: grid;
  gap: 12px;
  padding-left: 20px;
  color: var(--muted);
}

code {
  padding: 2px 6px;
  background: var(--soft-2);
  border-radius: 5px;
}

@media (max-width: 980px) {
  .site-header {
    padding: 0 4vw;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    left: 4vw;
    right: 4vw;
    top: 76px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 13px 10px;
  }

  .site-nav a::after {
    display: none;
  }

  .hero {
    min-height: 620px;
  }

  .hero-shade {
    background: linear-gradient(90deg, rgba(255,255,255,0.96), rgba(255,255,255,0.74));
  }

  .intro-grid,
  .quality-band,
  .split-section,
  .shop-layout,
  .coa-layout,
  .quality-notes,
  .about-grid,
  .contact-layout,
  .product-detail,
  .detail-tabs {
    grid-template-columns: 1fr;
  }

  .product-grid,
  .shop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .shop-filter {
    position: static;
  }

  .site-footer {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .top-strip {
    flex-direction: column;
    gap: 2px;
    padding: 8px 16px;
    text-align: center;
  }

  .brand-name {
    font-size: 22px;
  }

  .hero {
    min-height: 660px;
  }

  .hero-content {
    width: 88vw;
    margin: 0 auto;
    padding: 68px 0;
  }

  .hero-bg {
    object-position: 66% center;
  }

  h1 {
    font-size: 40px;
  }

  .hero-metrics,
  .product-grid,
  .shop-grid,
  .service-grid,
  .note-grid,
  .about-stats,
  .spec-grid,
  .form-row.two-col {
    grid-template-columns: 1fr;
  }

  .section {
    width: min(92vw, 1180px);
    padding: 58px 0;
  }

  .page-hero {
    min-height: 320px;
    padding: 60px 4vw;
  }

  .section-head,
  .coa-header,
  .oem-panel,
  .cta-section {
    align-items: flex-start;
    flex-direction: column;
  }

  .quality-band {
    padding: 58px 4vw;
  }

  .cta-section {
    width: 92vw;
    margin-bottom: 58px;
  }

  .site-footer {
    grid-template-columns: 1fr;
    padding: 44px 4vw 82px;
  }

  .floating-wa {
    right: 14px;
    bottom: 14px;
    min-width: 108px;
  }
}