:root {
  --bg: #f3efe8;
  --surface: rgba(255, 253, 249, 0.9);
  --surface-strong: #fffdf9;
  --ink: #142234;
  --muted: #637082;
  --line: rgba(20, 34, 52, 0.12);
  --accent: #a8783f;
  --accent-deep: #7f582d;
  --secondary: #1f506d;
  --secondary-deep: #16354d;
  --secondary-soft: rgba(31, 80, 109, 0.09);
  --shadow: 0 22px 56px rgba(20, 34, 52, 0.12);
  --radius: 24px;
  --container: min(1180px, calc(100% - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(
      circle at top left,
      rgba(168, 120, 63, 0.14),
      transparent 34%
    ),
    linear-gradient(180deg, #f8f5ef 0%, var(--bg) 42%, #f8f6f1 100%);
  font-family:
    "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    sans-serif;
  font-size: 15px;
}

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

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

.page-shell {
  min-height: 100vh;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(18px);
  transition:
    background-color 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease;
}

.site-header.is-scrolled {
  background: rgba(248, 245, 239, 0.82);
  border-bottom: 1px solid rgba(20, 34, 52, 0.08);
  box-shadow: 0 10px 40px rgba(20, 34, 52, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-left: auto;
}

.nav-panel {
  display: inline-flex;
  align-items: center;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong {
  font-family: "Source Han Serif SC", "STSong", serif;
  font-size: 1rem;
  letter-spacing: 0.04em;
}

.brand-copy small {
  color: var(--muted);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px;
  border: 1px solid rgba(20, 34, 52, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.66);
}

.lang-switch-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 34px;
  padding: 0 10px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.lang-switch-item.is-current {
  background: linear-gradient(135deg, var(--secondary), var(--secondary-deep));
  color: #fff;
}

.site-nav a {
  position: relative;
  font-size: 0.95rem;
  color: var(--muted);
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: center;
  background: linear-gradient(90deg, var(--accent), transparent);
  transition: transform 220ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a.is-current::after {
  transform: scaleX(1);
}

.site-nav a.is-current {
  color: var(--ink);
  font-weight: 700;
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.65);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 0 auto;
  background: var(--ink);
  transition:
    transform 220ms ease,
    opacity 220ms ease;
}

.nav-toggle span + span {
  margin-top: 6px;
}

.nav-open .nav-toggle span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav-open .nav-toggle span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.hero-section,
.page-hero {
  position: relative;
  overflow: hidden;
}

.hero-section {
  padding: 72px 0 64px;
}

.hero-home .hero-orbit {
  display: none;
}

.page-hero {
  padding: 88px 0 80px;
}

.hero-orbit {
  position: absolute;
  border-radius: 999px;
  filter: blur(18px);
  opacity: 0.55;
}

.hero-orbit-left {
  top: 120px;
  left: -90px;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(168, 120, 63, 0.3), transparent 70%);
}

.hero-orbit-right {
  right: -60px;
  bottom: 40px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(31, 80, 109, 0.22), transparent 72%);
}

.hero-grid,
.page-hero-grid,
.services-grid,
.contact-grid,
.two-column-grid {
  display: grid;
  gap: 34px;
  align-items: stretch;
}

.hero-grid,
.page-hero-grid {
  position: relative;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 420px);
}

.page-hero-grid-single {
  grid-template-columns: minmax(0, 1fr);
  min-height: clamp(460px, 68vh, 680px);
  align-items: center;
}

.page-hero-grid-single > .reveal {
  display: grid;
  align-content: center;
  max-width: 860px;
  padding: 36px 0;
}

.subpage-hero {
  padding-top: 44px;
  padding-bottom: 20px;
}

.subpage-hero .page-hero-grid-single {
  min-height: clamp(96px, 14vh, 132px);
}

.subpage-hero::before,
.subpage-hero::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  pointer-events: none;
}

.subpage-hero::before {
  top: 24px;
  right: -120px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(31, 80, 109, 0.1), transparent 72%);
}

.subpage-hero::after {
  left: -120px;
  bottom: -40px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(168, 120, 63, 0.1), transparent 74%);
}

.subpage-hero-copy {
  width: 100%;
  gap: 0;
  margin: 0 auto;
  justify-items: center;
  text-align: center;
}

.subpage-hero-copy h1 {
  max-width: none;
  margin: 0;
  font-size: 3rem;
  line-height: 1.2;
  text-align: center;
}

.subpage-hero-copy p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.hero-copy {
  padding: 28px 0;
}

.hero-stage {
  padding: 34px;
  border: 1px solid rgba(20, 34, 52, 0.08);
  border-radius: 6px;
  background: #fffdf9;
  box-shadow: none;
}

.hero-copy-home {
  max-width: 860px;
  padding: 0;
}

.hero-copy-home h1 {
  max-width: 10ch;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-deep);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-copy h1,
.page-hero h1,
.section-heading h2,
.services-copy h2,
.contact-copy h2,
.text-panel h2 {
  margin: 0;
  font-family: "Source Han Serif SC", "STSong", serif;
  line-height: 1.15;
  letter-spacing: 0.02em;
}

.hero-copy h1,
.page-hero h1 {
  font-size: clamp(2.2rem, 4.4vw, 4rem);
}

.hero-copy h1 {
  max-width: 11ch;
}

.hero-text,
.section-text,
.services-copy p,
.contact-copy p,
.text-panel p,
.about-card p,
.portfolio-card p,
.service-card p,
.feature-card p,
.contact-panel p,
.process-card p,
.metric-card span {
  color: var(--muted);
  line-height: 1.8;
}

.hero-text {
  max-width: 58ch;
  margin: 24px 0 0;
  font-size: 0.98rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform 220ms ease,
    box-shadow 220ms ease,
    border-color 220ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--secondary), var(--secondary-deep));
  box-shadow: 0 16px 34px rgba(31, 80, 109, 0.24);
}

.button-secondary {
  border: 1px solid rgba(20, 34, 52, 0.14);
  background: rgba(255, 255, 255, 0.7);
}

.hero-panel,
.page-hero-panel,
.about-card,
.portfolio-card,
.service-card,
.feature-card,
.contact-panel,
.contact-form-card,
.catalog-card,
.metric-card,
.process-card,
.text-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.hero-home .button {
  transition:
    border-color 180ms ease,
    background-color 180ms ease,
    color 180ms ease;
}

.hero-home .button:hover,
.hero-home .button:focus-visible {
  transform: none;
}

.hero-home .button-primary {
  background: var(--secondary);
  box-shadow: none;
}

.hero-home .button-secondary {
  background: #ffffff;
}

.hero-panel,
.page-hero-panel {
  padding: 28px;
  background:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.9),
      rgba(255, 251, 245, 0.92)
    ),
    var(--surface);
}

.panel-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(20, 34, 52, 0.08);
}

.panel-header p {
  margin: 0;
  font-weight: 700;
}

.panel-header span {
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.profile-list,
.snapshot-list {
  display: grid;
  gap: 14px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.profile-list article,
.snapshot-list li {
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(20, 34, 52, 0.06);
}

.profile-list article {
  display: grid;
  gap: 6px;
}

.profile-list strong {
  font-size: 0.88rem;
  color: var(--muted);
  font-weight: 600;
}

.profile-list span {
  font-size: 1.05rem;
  font-weight: 700;
}

.snapshot-list li {
  font-weight: 600;
}

.section {
  padding: 96px 0;
}

.section-light {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.44),
    rgba(255, 255, 255, 0)
  );
}

.section-accent {
  position: relative;
  color: #eef4f7;
  background: linear-gradient(
    130deg,
    rgba(20, 34, 52, 0.98),
    rgba(20, 47, 70, 0.94)
  );
}

.section-data-band {
  padding: 0 0 96px;
}

.section-accent .eyebrow,
.section-accent .services-copy p,
.section-accent .service-card p {
  color: rgba(238, 244, 247, 0.78);
}

.section-heading {
  max-width: 720px;
}

.section-heading h2,
.services-copy h2,
.contact-copy h2,
.text-panel h2 {
  font-size: clamp(1.75rem, 2.6vw, 2.5rem);
}

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

.workflow-section {
  background: linear-gradient(
    180deg,
    #fffdfb 0%,
    rgba(255, 255, 255, 0.94) 72%,
    rgba(255, 255, 255, 0.58) 100%
  );
}

.workflow-heading {
  max-width: none;
  text-align: center;
}

.workflow-heading .eyebrow {
  margin-bottom: 18px;
}

.workflow-heading h2 {
  display: inline-block;
  position: relative;
  padding-bottom: 30px;
  font-size: clamp(1.9rem, 3.4vw, 2.8rem);
}

.workflow-heading h2::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 74px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, #d8b45d, #b8852e);
  transform: translateX(-50%);
}

.workflow-heading .section-text {
  max-width: 760px;
  margin: 22px auto 0;
  font-size: 0.92rem;
}

.about-grid,
.portfolio-grid,
.services-list,
.feature-grid,
.catalog-grid,
.metric-grid,
.process-grid {
  display: grid;
  gap: 22px;
}

.about-grid {
  margin-top: 34px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.portfolio-grid {
  margin-top: 34px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.services-grid {
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
}

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

.feature-grid {
  margin-top: 34px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.catalog-grid {
  margin-top: 30px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.workflow-section .process-grid {
  margin-top: 64px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 42px;
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.contact-grid,
.two-column-grid {
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
}

.about-card,
.portfolio-card,
.service-card,
.feature-card,
.catalog-card,
.metric-card,
.process-card,
.contact-panel,
.contact-form-card,
.text-panel,
.application-card,
.cta-panel {
  padding: 28px;
}

.about-card h3,
.portfolio-card h3,
.service-card h3,
.feature-card h3,
.catalog-card h3,
.process-card h3,
.contact-panel h3 {
  margin: 0 0 14px;
  font-size: 1.08rem;
}

.portfolio-card span,
.feature-tag,
.catalog-badge {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
}

.portfolio-card span,
.feature-tag {
  margin-bottom: 18px;
  background: var(--secondary-soft);
  color: var(--secondary);
}

.product-range-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.product-range-card {
  padding: 0;
  overflow: hidden;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.98),
    rgba(252, 249, 244, 0.96)
  );
  box-shadow: 0 18px 40px rgba(20, 34, 52, 0.08);
}

.product-range-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 22px 28px 18px;
  border-bottom: 1px solid rgba(20, 34, 52, 0.08);
  background: linear-gradient(
    180deg,
    rgba(31, 80, 109, 0.06),
    rgba(31, 80, 109, 0.02)
  );
}

.product-range-code {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0;
  min-width: 44px;
  height: 44px;
  padding: 0 12px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--secondary), var(--secondary-deep));
  color: #fff;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.product-range-group {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.product-range-card h3 {
  margin: 0;
  padding: 24px 28px 0;
  font-size: 1.18rem;
}

.product-range-summary {
  margin: 0;
  padding: 14px 28px 0;
}

.product-range-meta {
  display: grid;
  gap: 0;
  margin: 22px 28px 28px;
  padding: 0;
  border-top: 1px solid rgba(20, 34, 52, 0.08);
}

.product-range-meta div {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(20, 34, 52, 0.08);
}

.product-range-meta div:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.product-range-meta dt,
.product-range-meta dd {
  margin: 0;
}

.product-range-meta dt {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.product-range-meta dd {
  color: var(--ink);
  font-size: 0.95rem;
  line-height: 1.75;
}

.service-card {
  min-height: 100%;
  color: #eef4f7;
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: none;
}

.feature-card {
  display: block;
  transition:
    transform 220ms ease,
    box-shadow 220ms ease,
    border-color 220ms ease;
}

.feature-card:hover,
.feature-card:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(31, 80, 109, 0.2);
  box-shadow: 0 28px 60px rgba(20, 34, 52, 0.14);
}

.application-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.74);
  box-shadow: var(--shadow);
}

.application-card span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--accent-deep);
  font-size: 1.65rem;
  font-weight: 700;
}

.application-card h3 {
  margin: 0 0 14px;
  font-size: 1.08rem;
}

.application-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.intro-heading {
  max-width: 760px;
}

.intro-layout,
.intro-card-grid {
  display: grid;
  gap: 22px;
}

.about-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  align-items: center;
  gap: 56px;
}

.about-visual {
  margin: 0;
  border-radius: 28px;
  overflow: hidden;
  background: #f1ece4;
  box-shadow: 0 24px 54px rgba(20, 34, 52, 0.12);
}

.about-visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center;
}

.about-copy {
  max-width: 560px;
}

.about-copy h2 {
  margin: 10px 0 0;
  font-family: "Source Han Serif SC", "STSong", serif;
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1.18;
}

.about-divider {
  display: inline-block;
  width: 84px;
  height: 4px;
  margin-top: 24px;
  border-radius: 999px;
  background: linear-gradient(90deg, #d7a43a, #c98c1c);
}

.about-lead,
.about-text {
  margin: 0;
  color: var(--muted);
  line-height: 1.9;
}

.about-lead {
  margin-top: 34px;
  color: var(--ink);
  font-size: 1.06rem;
  font-weight: 700;
}

.about-text {
  margin-top: 22px;
  font-size: 1rem;
}

.about-points {
  display: grid;
  gap: 18px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.about-points li {
  position: relative;
  padding-left: 40px;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.7;
}

.about-points li::before {
  content: "";
  position: absolute;
  top: 2px;
  left: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, #e1ad2f, #c98c1c);
  box-shadow: 0 10px 18px rgba(201, 140, 28, 0.22);
}

.about-points li::after {
  content: "";
  position: absolute;
  top: 9px;
  left: 7px;
  width: 9px;
  height: 5px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg);
}

.about-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 34px;
  color: var(--secondary-deep);
  font-size: 1rem;
  font-weight: 700;
}

.about-link::after {
  content: "";
  width: 10px;
  height: 10px;
  border-top: 3px solid currentColor;
  border-right: 3px solid currentColor;
  transform: rotate(45deg);
}

.intro-layout {
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  margin-top: 34px;
}

.intro-lead,
.intro-side-item,
.intro-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.intro-lead {
  padding: 32px;
}

.intro-lead-tag {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--secondary-soft);
  color: var(--secondary);
  font-size: 0.82rem;
  font-weight: 700;
}

.intro-lead h3 {
  margin: 18px 0 14px;
  font-family: "Source Han Serif SC", "STSong", serif;
  font-size: 1.62rem;
  line-height: 1.3;
}

.intro-lead p,
.intro-side-item p,
.intro-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.intro-lead p + p {
  margin-top: 14px;
}

.intro-visual {
  margin: 28px 0 0;
  border: 1px solid rgba(20, 34, 52, 0.08);
  border-radius: 22px;
  overflow: hidden;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.96),
    rgba(247, 243, 236, 0.96)
  );
}

.intro-visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  height: auto;
  object-fit: cover;
  object-position: center;
}

.intro-visual figcaption {
  padding: 14px 18px 16px;
  border-top: 1px solid rgba(20, 34, 52, 0.08);
  color: var(--muted);
  font-size: 0.84rem;
  letter-spacing: 0.08em;
}

.intro-side {
  display: grid;
  gap: 16px;
}

.intro-side-item {
  padding: 22px 24px;
}

.intro-side-item strong,
.intro-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 0.96rem;
}

.intro-card-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 22px;
}

.intro-card {
  padding: 22px 24px;
}

.data-band {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 28px;
  padding: 34px;
  border: 1px solid rgba(20, 34, 52, 0.08);
  border-radius: 28px;
  background:
    radial-gradient(
      circle at right top,
      rgba(31, 80, 109, 0.12),
      transparent 28%
    ),
    linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(250, 246, 240, 0.95));
  box-shadow: var(--shadow);
}

.data-band-copy {
  max-width: 520px;
}

.data-band-copy h2 {
  margin: 0;
  font-family: "Source Han Serif SC", "STSong", serif;
  font-size: clamp(1.75rem, 2.6vw, 2.35rem);
  line-height: 1.2;
}

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

.data-metric-card {
  padding: 24px;
  border: 1px solid rgba(20, 34, 52, 0.08);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.82);
}

.data-metric-card strong {
  display: block;
  margin-bottom: 10px;
  color: var(--secondary);
  font-size: clamp(1.75rem, 3.4vw, 2.45rem);
  line-height: 1;
}

.data-metric-card span {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.text-panel {
  align-self: start;
}

.text-panel .button {
  margin-top: 24px;
}

.metric-card {
  display: grid;
  gap: 8px;
}

.metric-card strong {
  color: var(--muted);
  font-size: 0.88rem;
}

.metric-card span {
  font-size: 0.98rem;
  font-weight: 700;
}

.process-card span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--accent-deep);
  font-size: 1.75rem;
  font-weight: 700;
}

.workflow-section .process-card {
  position: relative;
  padding: 28px 12px 0;
  border: none;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  text-align: center;
}

.workflow-section .process-card::after {
  content: "›";
  position: absolute;
  top: 24px;
  right: -28px;
  color: rgba(20, 34, 52, 0.08);
  font-size: 3.2rem;
  line-height: 1;
  font-weight: 400;
}

.workflow-section .process-card:last-child::after {
  display: none;
}

.workflow-section .process-card span {
  display: block;
  margin: 0;
  color: rgba(20, 34, 52, 0.08);
  font-size: clamp(2.4rem, 3.8vw, 3.3rem);
  line-height: 0.88;
}

.workflow-section .process-card h3 {
  position: relative;
  z-index: 1;
  margin: -10px 0 0;
  font-size: clamp(1.12rem, 1.6vw, 1.45rem);
  font-weight: 700;
}

.workflow-section .process-card p {
  max-width: 19ch;
  margin: 16px auto 0;
  font-size: 0.88rem;
  line-height: 1.75;
}

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 34px;
  border: 1px solid rgba(20, 34, 52, 0.1);
  border-radius: var(--radius);
  background:
    radial-gradient(
      circle at right top,
      rgba(31, 80, 109, 0.08),
      transparent 28%
    ),
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.86),
      rgba(255, 251, 245, 0.94)
    );
  box-shadow: var(--shadow);
}

.cta-panel h2 {
  margin: 0;
  font-family: "Source Han Serif SC", "STSong", serif;
  font-size: clamp(1.18rem, 1.7vw, 1.55rem);
  line-height: 1.2;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: flex-end;
}

.catalog-section {
  position: relative;
}

.catalog-shell {
  position: relative;
  overflow: hidden;
  padding: 36px;
  border: 1px solid rgba(20, 34, 52, 0.08);
  border-radius: 32px;
  background: #fcfbf9;
  box-shadow: 0 14px 30px rgba(20, 34, 52, 0.05);
}

.catalog-heading-row {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: 24px;
  align-items: stretch;
}

.catalog-callout {
  align-self: start;
  padding: 24px 26px;
  border: 1px solid rgba(20, 34, 52, 0.08);
  border-radius: 24px;
  background: #ffffff;
  box-shadow: none;
}

.catalog-callout-label,
.catalog-manufacturer-label {
  margin: 0;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.catalog-callout-label {
  color: var(--muted);
}

.catalog-callout-title {
  margin: 14px 0 0;
  color: var(--ink);
  font-family: "Source Han Serif SC", "STSong", serif;
  font-size: 1.1rem;
  line-height: 1.7;
}

.catalog-callout-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.catalog-callout-metrics div {
  padding: 16px;
  border: 1px solid rgba(20, 34, 52, 0.08);
  border-radius: 18px;
  background: #f7f8fa;
}

.catalog-callout-metrics strong {
  display: block;
  color: var(--secondary);
  font-size: 1.6rem;
  line-height: 1;
}

.catalog-callout-metrics span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.manufacturer-groups {
  display: grid;
  gap: 24px;
}

.manufacturer-group {
  padding: 28px;
  border: 1px solid rgba(20, 34, 52, 0.08);
  border-radius: 24px;
  background: #ffffff;
  box-shadow: 0 10px 24px rgba(20, 34, 52, 0.04);
}

.manufacturer-group-head {
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(20, 34, 52, 0.08);
}

.manufacturer-group-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.manufacturer-group h3 {
  margin: 10px 0 0;
  font-family: "Source Han Serif SC", "STSong", serif;
  font-size: 1.45rem;
  line-height: 1.3;
}

.product-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 22px;
}

.product-card {
  display: grid;
  gap: 18px;
  padding: 24px;
  border: 1px solid rgba(20, 34, 52, 0.08);
  border-radius: 24px;
  background: #ffffff;
  box-shadow: 0 10px 24px rgba(20, 34, 52, 0.04);
}

.product-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(20, 34, 52, 0.08);
}

.product-card-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.product-card h3 {
  margin: 10px 0 0;
  font-family: "Source Han Serif SC", "STSong", serif;
  font-size: 1.28rem;
  line-height: 1.3;
}

.product-card h4 {
  margin: 10px 0 0;
  font-family: "Source Han Serif SC", "STSong", serif;
  font-size: 1.18rem;
  line-height: 1.3;
}

.product-card-badge {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(20, 34, 52, 0.08);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  background: #f3f4f6;
  color: var(--ink);
}

.product-card-meta {
  display: grid;
  gap: 14px;
}

.product-card-detail strong,
.product-card-models strong {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.product-card-detail p {
  margin: 0;
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.7;
  word-break: break-word;
}

.product-card-model-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.product-card-model-list span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid rgba(20, 34, 52, 0.08);
  border-radius: 14px;
  background: #ffffff;
  color: var(--ink);
  font-size: 0.86rem;
  line-height: 1.4;
}

.contact-panel {
  display: grid;
  gap: 18px;
}

.contact-card {
  display: grid;
  gap: 28px;
  align-self: stretch;
  height: 100%;
  padding: 34px 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
}

.contact-card-intro h2,
.contact-form-header h2 {
  margin: 0;
  font-family: "Source Han Serif SC", "STSong", serif;
  font-size: clamp(1.8rem, 2.8vw, 2.4rem);
  line-height: 1.15;
}

.contact-card-intro p,
.contact-form-header p {
  margin: 16px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.contact-detail-list {
  display: grid;
  gap: 26px;
}

.contact-detail-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  align-items: start;
}

.contact-item-body h3 {
  margin: 0 0 10px;
  font-size: 1.08rem;
}

.contact-item-body p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.contact-form-card {
  display: grid;
  gap: 24px;
  align-self: stretch;
  height: 100%;
  padding: 34px 36px;
  background: rgba(255, 255, 255, 0.92);
}

.contact-form-header h3,
.contact-form-header h2 {
  margin-bottom: 0;
}

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

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

.contact-field {
  display: grid;
  gap: 8px;
}

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

.contact-field span {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
}

.contact-field input,
.contact-field select,
.contact-field textarea {
  width: 100%;
  border: 1px solid rgba(20, 34, 52, 0.12);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
  font: inherit;
  outline: none;
}

.contact-field input,
.contact-field select {
  height: 52px;
  padding: 0 18px;
}

.contact-field textarea {
  min-height: 160px;
  padding: 16px 18px;
  resize: vertical;
}

.contact-field input:focus,
.contact-field select:focus,
.contact-field textarea:focus {
  border-color: rgba(31, 80, 109, 0.34);
  box-shadow: 0 0 0 4px rgba(31, 80, 109, 0.08);
}

.contact-form-actions {
  display: grid;
  gap: 14px;
}

.contact-form-actions .hero-actions {
  margin-top: 0;
}

.contact-form-note {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.empty-state {
  grid-column: 1 / -1;
  display: grid;
  gap: 10px;
  place-items: center;
  padding: 42px 24px;
  border: 1px dashed rgba(20, 34, 52, 0.14);
  border-radius: 28px;
  background: #ffffff;
  text-align: center;
}

.empty-state strong,
.empty-state p {
  margin: 0;
}

.empty-state strong {
  color: var(--ink);
  font-size: 1.04rem;
}

.empty-state p {
  color: var(--muted);
}

.footer-shell {
  width: 100%;
  padding: 34px 0 0;
  border-top: 1px solid rgba(20, 34, 52, 0.08);
  border-bottom: 1px solid rgba(20, 34, 52, 0.08);
  border-left: none;
  border-right: none;
  border-radius: 0;
  background:
    radial-gradient(
      circle at top right,
      rgba(31, 80, 109, 0.1),
      transparent 24%
    ),
    radial-gradient(
      circle at top left,
      rgba(168, 120, 63, 0.12),
      transparent 28%
    ),
    linear-gradient(
      180deg,
      rgba(255, 251, 245, 0.92),
      rgba(243, 239, 232, 0.98)
    );
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.38);
  max-width: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 0.95fr 1.15fr;
  gap: 28px;
}

.footer-brand,
.footer-section {
  min-width: 0;
}

.footer-mark {
  display: none;
}

.footer-title,
.footer-heading {
  margin: 0;
  color: var(--ink);
}

.footer-title {
  font-size: 1rem;
  font-weight: 700;
}

.footer-subtitle,
.footer-description,
.footer-note,
.footer-contact p,
.footer-bottom p {
  margin: 0;
  color: var(--muted);
}

.footer-subtitle {
  margin-top: 8px;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
}

.footer-description {
  margin-top: 18px;
  line-height: 1.85;
}

.footer-note {
  margin-top: 14px;
  color: var(--accent-deep);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.footer-heading {
  margin-bottom: 16px;
  font-size: 0.94rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.footer-links,
.footer-contact {
  display: grid;
  gap: 12px;
}

.footer-links a,
.footer-contact a {
  color: var(--muted);
  transition: color 180ms ease;
}

.footer-links a:hover,
.footer-links a:focus-visible,
.footer-contact a:hover,
.footer-contact a:focus-visible {
  color: var(--secondary);
}

.footer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(20, 34, 52, 0.08);
  border-radius: 999px;
  background: var(--secondary-soft);
  color: var(--secondary);
  font-size: 0.82rem;
  font-weight: 700;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid rgba(20, 34, 52, 0.08);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 580ms ease,
    transform 580ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero-grid,
  .page-hero-grid,
  .about-showcase,
  .services-grid,
  .contact-grid,
  .two-column-grid,
  .intro-layout,
  .data-band,
  .about-grid,
  .portfolio-grid,
  .feature-grid,
  .catalog-grid,
  .intro-card-grid,
  .application-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .services-list,
  .metric-grid,
  .process-grid {
    grid-template-columns: 1fr 1fr;
  }

  .workflow-section .process-grid {
    grid-template-columns: 1fr 1fr;
    gap: 38px 28px;
  }

  .workflow-section .process-card:nth-child(2)::after {
    display: none;
  }

  .catalog-heading-row {
    grid-template-columns: 1fr;
  }

  .manufacturer-groups,
  .product-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 840px) {
  .header-inner {
    position: relative;
  }

  .header-actions {
    gap: 12px;
  }

  .nav-toggle {
    display: inline-block;
  }

  .nav-panel {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    left: 0;
    display: grid;
    gap: 18px;
    padding: 18px 20px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: rgba(255, 251, 245, 0.96);
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition:
      opacity 220ms ease,
      visibility 220ms ease,
      transform 220ms ease;
  }

  .site-nav {
    display: grid;
    gap: 16px;
  }

  .lang-switch {
    display: grid;
    gap: 22px;
    width: 100%;
    padding: 2px 0 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
  }

  .lang-switch-item {
    display: block;
    width: 100%;
    height: auto;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    color: var(--muted);
    font-size: 0;
    font-weight: 600;
    letter-spacing: 0;
    text-align: left;
  }

  .lang-switch-item::after {
    content: attr(data-full-label);
    font-size: 1rem;
    letter-spacing: 0;
  }

  .lang-switch-item.is-current {
    padding-bottom: 10px;
    border-bottom: 2px solid var(--secondary);
    background: transparent;
    color: var(--ink);
  }

  .nav-open .nav-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .hero-section,
  .page-hero {
    padding-top: 56px;
  }

  .page-hero {
    padding-bottom: 60px;
  }

  .page-hero-grid-single {
    min-height: 420px;
  }

  .subpage-hero .page-hero-grid-single {
    min-height: 240px;
  }

  .about-showcase {
    gap: 30px;
  }

  .services-list,
  .metric-grid,
  .process-grid,
  .product-range-grid,
  .data-metrics,
  .contact-form-grid,
  .feature-grid.three-up,
  .cta-panel {
    grid-template-columns: 1fr;
  }

  .cta-panel {
    display: grid;
  }

  .cta-actions {
    justify-content: flex-start;
  }

  .workflow-heading h2 {
    padding-bottom: 24px;
  }

  .workflow-section .process-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .workflow-section .process-card {
    padding-top: 16px;
  }

  .workflow-section .process-card::after {
    display: none;
  }

  .workflow-section .process-card p {
    max-width: none;
  }

  .catalog-shell {
    padding: 28px;
  }

  .manufacturer-group {
    padding: 24px;
  }

  .product-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  :root {
    --container: min(100% - 28px, 1180px);
    --radius: 22px;
  }

  .header-inner {
    padding: 16px 0;
  }

  .brand-copy small {
    letter-spacing: 0.08em;
  }

  .hero-copy h1 {
    max-width: none;
  }

  .hero-stage {
    padding: 22px;
  }

  .page-hero {
    padding-top: 36px;
    padding-bottom: 44px;
  }

  .subpage-hero {
    padding-top: 26px;
    padding-bottom: 12px;
  }

  .page-hero-grid-single {
    min-height: 360px;
  }

  .subpage-hero .page-hero-grid-single {
    min-height: 84px;
  }

  .page-hero-grid-single > .reveal {
    padding: 18px 0;
  }

  .about-copy h2 {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
  }

  .section {
    padding: 78px 0;
  }

  .hero-panel,
  .page-hero-panel,
  .contact-card,
  .about-card,
  .portfolio-card,
  .service-card,
  .feature-card,
  .metric-card,
  .process-card,
  .contact-panel,
  .contact-form-card,
  .text-panel,
  .application-card,
  .cta-panel,
  .data-band,
  .data-metric-card,
  .intro-lead,
  .intro-side-item,
  .intro-card,
  .manufacturer-group,
  .product-card,
  .footer-shell {
    padding: 22px;
  }

  .product-range-head,
  .product-range-card h3,
  .product-range-summary {
    padding-left: 22px;
    padding-right: 22px;
  }

  .product-range-meta {
    margin: 20px 22px 22px;
  }

  .product-range-meta div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .catalog-shell {
    padding: 22px;
    border-radius: 24px;
  }

  .catalog-callout,
  .manufacturer-group,
  .product-card {
    border-radius: 20px;
  }

  .product-card-model-list span {
    width: 100%;
    justify-content: center;
    padding-top: 10px;
    padding-bottom: 10px;
    text-align: center;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}