:root {
  --bg: #dfe5ea;
  --surface: rgba(243, 247, 250, 0.96);
  --surface-strong: #ffffff;
  --text: #16202a;
  --muted: #586675;
  --line: rgba(22, 32, 42, 0.14);
  --accent: #d86f2d;
  --accent-deep: #1f3346;
  --shadow: 0 18px 36px rgba(17, 30, 43, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Bahnschrift", "DIN Alternate", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    linear-gradient(180deg, #e7edf2 0%, #dfe6ec 100%);
}

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

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(231, 237, 242, 0.88);
  border-bottom: 1px solid var(--line);
}

.nav-shell,
.footer-grid,
.hero-grid,
.split-grid {
  display: grid;
  gap: 24px;
}

.nav-shell {
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: 16px 0;
}

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

.brand strong,
h1,
h2,
h3 {
  font-family: "Bahnschrift", "DIN Alternate", "Segoe UI", sans-serif;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand span {
  display: grid;
  gap: 4px;
}

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

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  color: #fff;
  background: linear-gradient(135deg, #1b3144, #34506a);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.nav-link,
.text-link {
  color: var(--accent-deep);
  font-weight: 600;
}

.nav-link {
  padding: 10px 14px;
  border: 1px solid transparent;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.82rem;
}

.nav-link:hover {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.36);
}

.lang-switch {
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--accent-deep);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero,
.section {
  padding: 72px 0;
}

.hero-grid,
.split-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
}

.hero-frame,
.hero-visual,
.hero-industrial-grid,
.top-category-grid,
.category-module-grid,
.industrial-band-grid,
.industrial-overview-grid,
.industrial-capability-grid,
.industrial-market-list,
.overview-metrics,
.industrial-contact-shell {
  display: grid;
  gap: 20px;
}

.home-industrial {
  overflow: hidden;
}

.hero-industrial {
  padding: 0 0 42px;
}

.hero-industrial-shell {
  width: min(1280px, calc(100% - 32px));
}

.hero-frame {
  grid-template-columns: 0.92fr 1.08fr;
  min-height: 760px;
  padding: 36px;
  border-radius: 0;
  background:
    linear-gradient(90deg, #13202d 0%, #13202d 42%, rgba(19, 32, 45, 0.72) 42%, rgba(19, 32, 45, 0.06) 100%),
    linear-gradient(135deg, #b7c3cd 0%, #d7e0e7 100%);
  color: #edf3f7;
}

.hero-industrial-copy {
  display: grid;
  align-content: center;
  gap: 14px;
  padding: 18px 18px 18px 4px;
}

.hero-industrial-copy .lead,
.hero-industrial-copy p {
  color: rgba(237, 243, 247, 0.78);
}

.hero-industrial-copy h1 {
  max-width: 9ch;
  font-size: clamp(3.4rem, 5vw, 6.3rem);
  line-height: 0.88;
  color: #f7fbff;
  text-transform: uppercase;
}

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

.hero-industrial-actions {
  margin-top: 14px;
}

.hero-industrial-metrics {
  margin-top: 20px;
}

.industrial-metric {
  min-width: 132px;
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 4px;
}

.industrial-metric strong {
  display: block;
  font-size: 1.7rem;
  color: #fff;
  font-family: Georgia, "Times New Roman", serif;
}

.industrial-metric span {
  color: rgba(247, 239, 231, 0.7);
  font-size: 0.92rem;
}

.hero-industrial-visual {
  align-content: center;
}

.hero-industrial-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.hero-grid-card,
.catalog-tile,
.industrial-band-card,
.industrial-market-panel {
  position: relative;
  overflow: hidden;
  border-radius: 0;
  background: rgba(248, 251, 253, 0.98);
  border: 1px solid rgba(22, 32, 42, 0.12);
  box-shadow: var(--shadow);
}

.hero-grid-card {
  min-height: 248px;
}

.hero-grid-card img,
.catalog-tile img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  background: linear-gradient(180deg, #f9fbfc 0%, #edf2f6 100%);
  padding: 18px;
}

.hero-grid-copy {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 14px;
  border-radius: 0;
  background: rgba(15, 27, 39, 0.92);
  color: #eef5fb;
}

.hero-grid-copy .eyebrow,
.hero-grid-copy h3 {
  margin: 0;
}

.hero-grid-copy h3 {
  margin: 8px 0 0;
  font-size: 0.96rem;
  line-height: 1.25;
}

.hero-panel,
.card,
.inquiry-card {
  background: var(--surface);
  border: 1px solid rgba(22, 32, 42, 0.1);
  border-radius: 0;
  box-shadow: var(--shadow);
}

.hero-panel,
.card,
.inquiry-card,
.product-table article {
  padding: 28px;
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #607180;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(2.8rem, 4vw, 4.8rem);
  line-height: 0.95;
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(1.6rem, 2vw, 2.4rem);
}

h3 {
  margin: 0 0 12px;
  font-size: 1.35rem;
}

p,
li,
dd,
dt,
input,
textarea,
select,
button {
  line-height: 1.7;
}

.lead {
  font-size: 1.15rem;
  color: var(--muted);
}

.actions,
.metric-grid,
.card-grid,
.market-list,
.product-table,
.spec-grid,
.inquiry-form {
  display: grid;
  gap: 16px;
}

.actions {
  grid-template-columns: repeat(2, max-content);
  margin-top: 28px;
}

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  border: 0;
  border-radius: 0;
  padding: 14px 22px;
  color: #fff;
  background: linear-gradient(135deg, #21384b, #2e4c64);
  cursor: pointer;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.button.ghost {
  color: var(--accent-deep);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.5);
}

.metric-grid,
.card-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.metric {
  padding: 20px;
  border-radius: 0;
  background: var(--surface-strong);
  border: 1px solid var(--line);
}

.metric strong {
  display: block;
  font-size: 1.8rem;
  font-family: Georgia, "Times New Roman", serif;
}

.bullet-list,
.footer-list {
  margin: 0;
  padding-left: 18px;
}

.product-count,
.source-note {
  color: var(--muted);
}

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

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
  margin-bottom: 24px;
}

.alt {
  background: rgba(255, 255, 255, 0.2);
}

.industrial-band {
  margin-top: -44px;
  padding-bottom: 30px;
}

.category-strip {
  padding-top: 36px;
  padding-bottom: 28px;
}

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

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

.industrial-band-card {
  padding: 24px 24px 22px;
  background: linear-gradient(180deg, rgba(245, 249, 252, 0.98), rgba(233, 240, 246, 0.94));
}

.industrial-band-card h3 {
  min-height: 56px;
  text-transform: uppercase;
  font-size: 1.12rem;
}

.industrial-overview {
  padding-top: 24px;
  padding-bottom: 28px;
}

.industrial-overview-grid {
  grid-template-columns: 1.05fr 0.95fr;
  align-items: stretch;
}

.overview-panel {
  padding: 28px;
  border: 1px solid var(--line);
}

.overview-panel.dark {
  background: linear-gradient(135deg, #13202d, #22384c);
  color: #edf4fa;
}

.overview-panel.dark p,
.overview-panel.dark h2 {
  color: inherit;
}

.overview-panel.light {
  background: rgba(248, 251, 253, 0.9);
}

.overview-metrics {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 22px;
}

.overview-metric {
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.overview-metric strong {
  display: block;
  font-size: 1.8rem;
  font-family: "Bahnschrift", "DIN Alternate", "Segoe UI", sans-serif;
}

.industrial-capability {
  padding-top: 30px;
}

.industrial-capability-grid {
  grid-template-columns: 1.05fr 0.95fr;
  align-items: start;
}

.industrial-capability-copy {
  padding-right: 24px;
}

.industrial-lines {
  display: grid;
  gap: 18px;
}

.industrial-line {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  align-items: start;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.line-index {
  width: 18px;
  height: 18px;
  margin-top: 6px;
  border-radius: 0;
  background: linear-gradient(135deg, #d86f2d, #f09b52);
}

.industrial-market-panel {
  padding: 28px;
  background: linear-gradient(135deg, #172633, #294052);
  color: #eef5fb;
}

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

.industrial-market-list span {
  padding: 16px 18px;
  border-radius: 0;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-transform: uppercase;
  font-size: 0.86rem;
  letter-spacing: 0.05em;
}

.industrial-categories {
  padding-top: 36px;
}

.industrial-head {
  margin-bottom: 30px;
}

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

.trust-copy {
  padding: 28px;
  border-radius: 28px;
  background: #1d1713;
  color: #f7ede2;
  box-shadow: var(--shadow);
}

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

.market-list {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.market-list span {
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(255, 250, 244, 0.9);
  border: 1px solid var(--line);
}

.site-footer {
  padding: 32px 0 56px;
}

.footer-grid {
  grid-template-columns: 1.4fr 0.8fr 1fr;
}

.prose-shell {
  display: grid;
  gap: 24px;
}

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

.product-table {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.showcase-card {
  overflow: hidden;
}

.product-card {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 22px;
  align-items: start;
  padding: 18px;
  border-radius: 0;
  background: linear-gradient(180deg, rgba(248, 251, 253, 0.98), rgba(236, 242, 247, 0.92));
}

.product-card .product-image {
  margin: 0;
  min-height: 220px;
  height: 100%;
  object-fit: contain;
  padding: 16px;
  background: linear-gradient(180deg, #f7fafc 0%, #edf2f6 100%);
}

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

.product-card-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}

.product-card h3,
.industrial-contact-shell h2,
.industrial-capability-copy h2,
.industrial-head h2 {
  text-transform: uppercase;
}

.category-block {
  margin-top: 48px;
}

.industrial-showcase {
  background:
    linear-gradient(135deg, rgba(31, 51, 70, 0.05), rgba(216, 111, 45, 0.02)),
    rgba(255, 255, 255, 0.26);
}

.industrial-contact-shell {
  grid-template-columns: 1.05fr 0.95fr;
  padding: 30px;
  border-radius: 0;
  background: linear-gradient(135deg, #142331, #223749);
  color: #eef5fb;
}

.industrial-contact-shell p,
.industrial-contact-shell h2 {
  color: inherit;
}

.industrial-contact-actions {
  display: grid;
  gap: 18px;
  align-content: center;
  justify-items: start;
}

.product-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  margin-bottom: 16px;
  border-radius: 0;
  background: #fff;
  border: 1px solid var(--line);
}

.spec-grid {
  grid-template-columns: max-content 1fr;
}

dt {
  font-weight: 700;
}

.inquiry-form {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 20px;
}

.inquiry-form label {
  display: grid;
  gap: 8px;
  font-weight: 600;
}

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

input,
textarea,
select {
  width: 100%;
  padding: 14px 16px;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.76);
  font: inherit;
}

.status {
  margin: 0;
  color: var(--accent-deep);
}

@media (max-width: 820px) {
  .nav-shell,
  .hero-grid,
  .hero-frame,
  .hero-industrial-visual,
  .hero-industrial-grid,
  .top-category-grid,
  .industrial-band-grid,
  .industrial-overview-grid,
  .industrial-capability-grid,
  .industrial-market-list,
  .overview-metrics,
  .industrial-contact-shell,
  .split-grid,
  .category-module-grid,
  .footer-grid,
  .card-grid.two,
  .inquiry-form,
  .actions {
    grid-template-columns: 1fr;
  }

  nav {
    justify-content: flex-start;
  }

  h1 {
    font-size: 2.6rem;
  }

  .hero-frame {
    min-height: auto;
    padding: 22px;
    border-radius: 0;
  }

  .hero-grid-card {
    min-height: 240px;
  }

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