:root {
  --ink: #111820;
  --ink-soft: #26323d;
  --muted: #66717b;
  --paper: #f4f6f3;
  --surface: #ffffff;
  --line: #d9dfdc;
  --accent: #e45a16;
  --accent-dark: #b9430d;
  --teal: #0d7772;
  --navy: #123041;
  --cream: #fbf8f2;
  --shadow: 0 18px 50px rgba(21, 35, 44, 0.10);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.72;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

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

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

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

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

h1,
h2,
h3 {
  line-height: 1.24;
}

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

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 14px;
  color: #fff;
  background: var(--ink);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.top-strip {
  color: #e8eef0;
  background: var(--navy);
  font-size: 13px;
}

.top-strip-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  min-height: 38px;
  align-items: center;
}

.top-strip a {
  color: #fff;
}

.top-strip a:hover {
  color: #ffd2b9;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(17, 24, 32, 0.08);
  backdrop-filter: blur(14px);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  gap: 26px;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
}

.brand img {
  width: 178px;
  height: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  padding: 11px 12px;
  color: var(--ink-soft);
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--accent-dark);
  background: #fff1e8;
}

.nav-cta {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 16px;
  color: #fff;
  background: var(--accent);
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
}

.nav-cta:hover {
  background: var(--accent-dark);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  cursor: pointer;
}

.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  content: "";
  background: currentColor;
}

.hero {
  position: relative;
  display: flex;
  min-height: min(760px, 88svh);
  align-items: center;
  overflow: hidden;
  color: #fff;
  background-image: url("images/hero-banner.jpg");
  background-position: center;
  background-size: cover;
}

.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background: rgba(6, 13, 18, 0.62);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(780px, 100%);
  padding-block: 86px 108px;
}

.eyebrow {
  margin-bottom: 16px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #ffb38a;
}

.hero h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(40px, 5.2vw, 68px);
  font-weight: 800;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 720px;
  margin-bottom: 30px;
  color: #e4ebee;
  font-size: clamp(17px, 1.6vw, 21px);
}

.hero-actions,
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 750;
  line-height: 1.2;
  transition: background-color 0.2s ease, border-color 0.2s ease,
    color 0.2s ease;
}

.button-primary {
  color: #fff;
  background: var(--accent);
}

.button-primary:hover {
  background: var(--accent-dark);
}

.button-light {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.72);
}

.button-light:hover {
  color: var(--ink);
  background: #fff;
}

.button-outline {
  color: var(--ink);
  border-color: #bdc7c3;
}

.button-outline:hover {
  color: var(--accent-dark);
  border-color: var(--accent);
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 30px;
  margin-top: 38px;
  color: #d7e1e4;
  font-size: 14px;
}

.hero-proof span::before {
  margin-right: 8px;
  color: #ffb38a;
  content: "•";
}

.section {
  padding-block: 92px;
}

.section-compact {
  padding-block: 70px;
}

.section-paper {
  background: var(--paper);
}

.section-navy {
  color: #fff;
  background: var(--navy);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 38px;
}

.section-head-copy {
  max-width: 720px;
}

.section-head h2 {
  margin-bottom: 12px;
  font-size: clamp(30px, 3.5vw, 45px);
  letter-spacing: 0;
}

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

.section-navy .section-head p {
  color: #c7d3d9;
}

.text-link {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 6px;
  color: var(--accent-dark);
  font-weight: 750;
}

.text-link::after {
  content: "→";
}

.text-link:hover {
  color: var(--accent);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.product-card {
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.product-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.product-card-media {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #edf1ef;
}

.product-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-card-body {
  padding: 22px;
}

.product-card h3 {
  margin-bottom: 10px;
  font-size: 20px;
}

.product-card p {
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 15px;
}

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

.product-meta span {
  padding: 4px 9px;
  color: var(--teal);
  background: #e8f3f1;
  border-radius: 5px;
  font-size: 12px;
  font-weight: 700;
}

.feature-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 54px;
  align-items: center;
}

.feature-split-media img {
  width: 100%;
  border-radius: 8px;
}

.feature-list {
  display: grid;
  gap: 22px;
  margin-top: 28px;
}

.feature-item {
  padding-left: 20px;
  border-left: 3px solid var(--accent);
}

.feature-item h3 {
  margin-bottom: 6px;
  font-size: 19px;
}

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

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
}

.metric {
  min-height: 165px;
  padding: 28px;
  background: var(--navy);
}

.metric strong {
  display: block;
  margin-bottom: 8px;
  color: #ffb38a;
  font-size: 30px;
  line-height: 1.1;
}

.metric p {
  margin-bottom: 0;
  color: #d3dde1;
  font-size: 14px;
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.application-item {
  padding: 26px;
  background: #fff;
  border-top: 4px solid var(--teal);
  border-radius: 0 0 8px 8px;
}

.application-item h3 {
  margin-bottom: 8px;
  font-size: 20px;
}

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

.news-list {
  display: grid;
  gap: 1px;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.news-item {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  padding: 22px 24px;
  background: #fff;
}

.news-item time {
  color: var(--muted);
  font-size: 14px;
}

.news-item h3 {
  margin-bottom: 0;
  font-size: 18px;
}

.news-item a:hover {
  color: var(--accent-dark);
}

.cta-band {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) auto;
  gap: 32px;
  align-items: center;
  padding: 42px;
  color: #fff;
  background: var(--ink);
  border-radius: 8px;
}

.cta-band h2 {
  margin-bottom: 8px;
  font-size: clamp(28px, 3.2vw, 40px);
}

.cta-band p {
  margin-bottom: 0;
  color: #cbd3d7;
}

.page-hero {
  padding-block: 72px 66px;
  color: #fff;
  background: var(--navy);
}

.page-hero h1 {
  max-width: 920px;
  margin-bottom: 16px;
  font-size: clamp(36px, 4.6vw, 56px);
}

.page-hero p {
  max-width: 800px;
  margin-bottom: 0;
  color: #d0dce1;
  font-size: 18px;
}

.breadcrumb {
  margin-bottom: 18px;
  color: #aebec5;
  font-size: 14px;
}

.breadcrumb a:hover {
  color: #fff;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 52px;
  align-items: start;
}

.content-grid > *,
.feature-split > * {
  min-width: 0;
}

.prose h2 {
  margin-top: 48px;
  margin-bottom: 16px;
  font-size: 31px;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h3 {
  margin-top: 30px;
  margin-bottom: 12px;
  font-size: 22px;
}

.prose p,
.prose li {
  color: #42505b;
}

.prose ul {
  margin: 16px 0 24px;
  padding-left: 22px;
}

.prose li {
  margin-bottom: 9px;
}

.aside-panel {
  position: sticky;
  top: 110px;
  padding: 28px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.aside-panel h2 {
  margin-bottom: 12px;
  font-size: 22px;
}

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

.contact-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-list a {
  color: var(--accent-dark);
  font-weight: 700;
}

.table-wrap {
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  background: #fff;
}

th,
td {
  padding: 15px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  color: var(--ink);
  background: #edf1ef;
  font-size: 14px;
}

tr:last-child td {
  border-bottom: 0;
}

.faq-list {
  display: grid;
  gap: 14px;
}

details {
  padding: 18px 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

summary {
  color: var(--ink);
  font-weight: 750;
  cursor: pointer;
}

details p {
  margin: 12px 0 0;
  color: var(--muted);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 42px;
  align-items: start;
}

.contact-card {
  padding: 30px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.contact-card dl {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px 18px;
  margin-bottom: 0;
}

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

.contact-card dd {
  margin: 0;
  font-weight: 650;
}

.inquiry-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.form-field {
  display: grid;
  gap: 7px;
}

.form-field-full {
  grid-column: 1 / -1;
}

.form-field label {
  font-size: 14px;
  font-weight: 700;
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 12px 13px;
  color: var(--ink);
  background: #fff;
  border: 1px solid #c9d1ce;
  border-radius: 6px;
  outline: none;
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(228, 90, 22, 0.12);
}

.form-field textarea {
  min-height: 140px;
  resize: vertical;
}

.form-note {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.site-footer {
  color: #cad5da;
  background: #0b1d28;
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(260px, 1.35fr) repeat(3, minmax(140px, 0.65fr));
  gap: 42px;
  padding-block: 62px;
}

.footer-brand img {
  width: 180px;
  margin-bottom: 18px;
  padding: 7px 9px;
  background: #fff;
  border-radius: 6px;
}

.footer-brand p {
  max-width: 390px;
  color: #aebdc4;
}

.footer-column h2 {
  margin-bottom: 16px;
  color: #fff;
  font-size: 16px;
}

.footer-column a,
.footer-column span {
  display: block;
  margin-bottom: 9px;
  color: #b9c7cd;
  font-size: 14px;
}

.footer-column a:hover {
  color: #ffb38a;
}

.footer-bottom {
  padding-block: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #8fa2ab;
  font-size: 13px;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

@media (max-width: 1060px) {
  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: fixed;
    top: 116px;
    right: 20px;
    left: 20px;
    display: none;
    max-height: calc(100svh - 136px);
    padding: 14px;
    overflow: auto;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

  .main-nav.is-open {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .main-nav a {
    padding: 13px 12px;
  }

  .nav-cta {
    display: none;
  }

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

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

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

@media (max-width: 760px) {
  .container {
    width: min(calc(100% - 28px), var(--max));
  }

  .top-strip-inner {
    justify-content: center;
  }

  .top-strip-inner span:last-child {
    display: none;
  }

  .nav-wrap {
    min-height: 68px;
  }

  .brand img {
    width: 148px;
  }

  .main-nav {
    top: 106px;
  }

  .main-nav.is-open {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 72svh;
    background-position: 58% center;
  }

  .hero-content {
    padding-block: 64px 78px;
  }

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

  .section,
  .section-compact {
    padding-block: 64px;
  }

  .section-head {
    display: block;
  }

  .section-head .text-link {
    margin-top: 16px;
  }

  .product-grid,
  .application-grid,
  .feature-split,
  .content-grid,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .product-grid {
    gap: 16px;
  }

  .feature-split {
    gap: 30px;
  }

  .metric-grid {
    grid-template-columns: 1fr;
  }

  .metric {
    min-height: auto;
  }

  .news-item {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .cta-band {
    grid-template-columns: 1fr;
    padding: 28px;
  }

  .aside-panel {
    position: static;
  }

  .inquiry-form {
    grid-template-columns: 1fr;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-block: 48px;
  }

  .footer-bottom-inner {
    display: block;
  }
}