:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #66717f;
  --line: #dce2e8;
  --soft: #f3f6f8;
  --paper: #ffffff;
  --steel: #2f596d;
  --steel-dark: #18394a;
  --rust: #b65b3a;
  --amber: #d49c43;
  --green: #4f735d;
  --shadow: 0 18px 45px rgba(23, 32, 42, 0.13);
  --radius: 8px;
  --shell: min(1180px, calc(100% - 36px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #f8fafb;
  font-family:
    "Microsoft YaHei",
    "PingFang SC",
    "Noto Sans SC",
    Arial,
    sans-serif;
  line-height: 1.6;
  letter-spacing: 0;
}

body.drawer-open,
body.nav-open {
  overflow: hidden;
}

body.is-rtl {
  direction: rtl;
}

body.is-rtl .product-drawer .drawer-panel {
  justify-self: start;
  transform: translateX(-100%);
}

body.is-rtl .product-drawer.is-open .drawer-panel {
  transform: translateX(0);
}

body.is-rtl .drawer-close {
  right: auto;
  left: 14px;
}

[data-phone-text],
[data-phone-line],
[data-phone-link],
[data-email-text],
[data-email-line] {
  direction: ltr;
  unicode-bidi: isolate;
}

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

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

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 24px;
  width: 100%;
  min-height: 76px;
  padding: 14px max(18px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid rgba(220, 226, 232, 0.92);
  color: var(--ink);
  background: rgba(250, 253, 251, 0.96);
  box-shadow: 0 8px 26px rgba(23, 32, 42, 0.07);
  backdrop-filter: blur(14px);
  transition:
    background 0.22s ease,
    color 0.22s ease,
    box-shadow 0.22s ease,
    border-color 0.22s ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  color: var(--ink);
  background: rgba(250, 253, 251, 0.98);
  border-color: rgba(220, 226, 232, 0.9);
  box-shadow: 0 10px 35px rgba(23, 32, 42, 0.08);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 270px;
}

.brand-logo {
  width: 252px;
  height: auto;
  max-height: 62px;
  object-fit: contain;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  padding: 0;
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: clamp(16px, 3vw, 38px);
  font-size: 15px;
  font-weight: 700;
}

.main-nav a {
  position: relative;
  padding: 8px 0;
}

.main-nav a::after {
  position: absolute;
  right: 0;
  bottom: 3px;
  left: 0;
  height: 2px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
  content: "";
}

.main-nav a:hover::after {
  transform: scaleX(1);
}

.language-select {
  display: inline-flex;
  align-items: center;
  justify-self: end;
  min-height: 42px;
  padding: 0 10px;
  gap: 8px;
  color: var(--steel-dark);
  background: #eef4f2;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
}

.language-select select {
  min-width: 104px;
  border: 0;
  outline: 0;
  color: var(--steel-dark);
  background: transparent;
  font-weight: 800;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  gap: 8px;
  color: #fff;
  background: var(--steel);
  border-radius: 6px;
  font-weight: 800;
  box-shadow: 0 10px 24px rgba(47, 89, 109, 0.2);
  white-space: nowrap;
}

.icon-phone,
.icon-search {
  position: relative;
  display: inline-block;
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
}

.icon-phone::before {
  position: absolute;
  inset: 3px 2px 2px 4px;
  border: 2px solid currentColor;
  border-top: 0;
  border-left: 0;
  border-radius: 1px 1px 5px 1px;
  transform: rotate(42deg);
  content: "";
}

.icon-search::before {
  position: absolute;
  top: 1px;
  left: 1px;
  width: 10px;
  height: 10px;
  border: 2px solid currentColor;
  border-radius: 50%;
  content: "";
}

.icon-search::after {
  position: absolute;
  right: 1px;
  bottom: 2px;
  width: 7px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transform: rotate(45deg);
  content: "";
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid currentColor;
  color: currentColor;
  background: transparent;
  border-radius: 6px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
  border-radius: 3px;
}

.hero {
  position: relative;
  min-height: 92vh;
  overflow: hidden;
  color: #fff;
  background: var(--steel-dark);
}

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

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

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(12, 26, 36, 0.88) 0%, rgba(18, 44, 58, 0.72) 44%, rgba(18, 44, 58, 0.36) 100%),
    linear-gradient(180deg, rgba(12, 26, 36, 0.08) 0%, rgba(12, 26, 36, 0.84) 100%);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 720px) minmax(280px, 360px);
  align-items: end;
  gap: clamp(28px, 5vw, 72px);
  min-height: 92vh;
  padding-top: 150px;
  padding-bottom: clamp(72px, 10vw, 118px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--amber);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1,
h2,
h3 {
  line-height: 1.18;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 700px;
  margin-bottom: 22px;
  font-size: clamp(40px, 5.2vw, 64px);
  font-weight: 900;
  text-wrap: balance;
}

.hero-lead {
  max-width: 680px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(16px, 2vw, 19px);
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 900;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease;
}

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

.button.primary {
  color: #fff;
  background: var(--rust);
  box-shadow: 0 14px 28px rgba(182, 91, 58, 0.24);
}

.button.ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.08);
}

.button.full {
  width: 100%;
}

.hero-panel {
  display: grid;
  gap: 1px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.hero-panel div {
  padding: 22px;
  background: rgba(15, 31, 42, 0.48);
}

.hero-panel strong {
  display: block;
  margin-bottom: 6px;
  color: #fff;
  font-size: 22px;
}

.hero-panel span {
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.quick-strip {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
}

.quick-grid a {
  display: grid;
  min-height: 72px;
  place-items: center;
  padding: 14px 10px;
  border-left: 1px solid var(--line);
  color: var(--steel-dark);
  font-weight: 900;
  text-align: center;
}

.quick-grid a:last-child {
  border-right: 1px solid var(--line);
}

.quick-grid a:hover {
  color: var(--rust);
  background: #fbf3ef;
}

.proof {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 64px;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.proof-item {
  padding: clamp(22px, 3vw, 34px);
  background: var(--paper);
}

.proof-item span {
  display: block;
  margin-bottom: 8px;
  color: var(--steel);
  font-size: clamp(34px, 4vw, 52px);
  font-weight: 900;
  line-height: 1;
}

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

.products-section,
.applications,
.news-section,
.contact {
  padding: 86px 0;
}

.section-heading {
  max-width: 740px;
  margin-bottom: 32px;
}

.section-heading h2,
.contact-copy h2,
.quality h2 {
  margin-bottom: 14px;
  color: var(--steel-dark);
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 900;
}

.section-heading p,
.contact-copy p,
.quality p {
  color: var(--muted);
  font-size: 17px;
}

.split-heading {
  display: grid;
  grid-template-columns: 1fr minmax(260px, 470px);
  align-items: end;
  gap: 36px;
  max-width: none;
}

.category-overview {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.category-card {
  display: grid;
  gap: 8px;
  min-height: 168px;
  padding: 16px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.category-card h3 {
  margin: 0;
  color: var(--steel-dark);
  font-size: 17px;
}

.category-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.category-card strong {
  color: var(--rust);
  font-size: 12px;
}

.product-toolbar {
  position: sticky;
  top: 76px;
  z-index: 12;
  display: grid;
  grid-template-columns: minmax(240px, 360px) 1fr;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
  padding: 16px;
  background: rgba(248, 250, 251, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
}

.search-box {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 0 14px;
  gap: 10px;
  color: var(--muted);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.search-box input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-tabs button {
  min-height: 40px;
  padding: 0 13px;
  border: 1px solid var(--line);
  color: var(--steel-dark);
  background: var(--paper);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 800;
}

.filter-tabs button.is-active,
.filter-tabs button:hover {
  color: #fff;
  background: var(--steel);
  border-color: var(--steel);
}

.product-count {
  min-height: 28px;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 14px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.empty-state {
  grid-column: 1 / -1;
  padding: 34px;
  color: var(--muted);
  background: var(--paper);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  text-align: center;
}

.product-card {
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 12px 28px rgba(23, 32, 42, 0.05);
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    border-color 0.18s ease;
}

.product-card:hover {
  border-color: rgba(47, 89, 109, 0.44);
  box-shadow: 0 18px 38px rgba(23, 32, 42, 0.12);
  transform: translateY(-3px);
}

.product-image {
  position: relative;
  aspect-ratio: 4 / 3;
  background:
    linear-gradient(135deg, rgba(47, 89, 109, 0.1), rgba(212, 156, 67, 0.12)),
    #e8edf1;
  overflow: hidden;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.24s ease;
}

.product-card:hover .product-image img {
  transform: scale(1.04);
}

.product-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  max-width: calc(100% - 20px);
  padding: 5px 9px;
  color: #fff;
  background: rgba(24, 57, 74, 0.86);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
  white-space: nowrap;
}

.product-body {
  display: grid;
  grid-template-rows: auto auto auto auto 1fr auto;
  gap: 10px;
  min-height: 302px;
  padding: 16px;
}

.product-body h3 {
  margin: 0;
  color: var(--steel-dark);
  font-size: 18px;
  font-weight: 900;
}

.product-body p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.product-body .product-meta {
  display: -webkit-box;
  overflow: hidden;
  color: #52606d;
  font-size: 13px;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.product-meta strong {
  color: var(--steel-dark);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  align-content: start;
  gap: 6px;
}

.tag-row span,
.drawer-specs span {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 8px;
  color: var(--steel-dark);
  background: #edf3f5;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.card-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.seo-keywords {
  margin-top: 54px;
  padding: 34px;
  background: #eef4f2;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.seo-keyword-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.seo-keyword-grid article {
  min-height: 168px;
  padding: 18px;
  background: var(--paper);
  border: 1px solid rgba(220, 226, 232, 0.9);
  border-radius: 8px;
}

.seo-keyword-grid h3 {
  margin-bottom: 9px;
  color: var(--steel-dark);
  font-size: 18px;
}

.seo-keyword-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.small-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 10px;
  border: 1px solid var(--line);
  color: var(--steel-dark);
  background: #fff;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 900;
}

.small-button.primary {
  color: #fff;
  background: var(--steel);
  border-color: var(--steel);
}

.capability {
  padding: 94px 0;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(24, 57, 74, 0.96), rgba(47, 89, 109, 0.9)),
    var(--steel-dark);
}

.capability .section-heading h2,
.capability .section-heading p {
  color: #fff;
}

.capability .section-heading p {
  color: rgba(255, 255, 255, 0.76);
}

.capability-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.88fr) minmax(360px, 1.12fr);
  gap: clamp(34px, 6vw, 78px);
}

.process-list {
  display: grid;
  gap: 12px;
}

.process-row {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 18px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
}

.process-row span {
  color: var(--amber);
  font-size: 24px;
  font-weight: 900;
}

.process-row h3 {
  margin-bottom: 7px;
  font-size: 20px;
}

.process-row p {
  margin: 0;
  color: rgba(255, 255, 255, 0.74);
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.application-item {
  min-height: 230px;
  padding: 24px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 12px 30px rgba(23, 32, 42, 0.06);
}

.application-item h3 {
  margin-bottom: 12px;
  color: var(--steel-dark);
  font-size: 21px;
}

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

.news-section {
  background: var(--paper);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.news-card {
  display: grid;
  gap: 12px;
  min-height: 238px;
  padding: 24px;
  background: #fbfcfd;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.news-card time {
  color: var(--rust);
  font-size: 13px;
  font-weight: 900;
}

.news-card h3 {
  margin: 0;
  color: var(--steel-dark);
  font-size: 21px;
}

.news-card p {
  margin: 0;
  color: var(--muted);
}

.news-card span {
  align-self: end;
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
}

.quality {
  padding: 94px 0;
  background:
    linear-gradient(90deg, #f7f1e8, #eef4f2 54%, #edf1f5),
    var(--soft);
}

.quality-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.78fr) minmax(360px, 1.22fr);
  gap: clamp(34px, 6vw, 80px);
  align-items: start;
}

.spec-table {
  display: grid;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.spec-table div {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
}

.spec-table div:last-child {
  border-bottom: 0;
}

.spec-table span {
  color: var(--muted);
}

.spec-table strong {
  color: var(--steel-dark);
}

.contact {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 0.68fr);
  gap: clamp(34px, 6vw, 82px);
  align-items: start;
}

.contact-lines {
  display: grid;
  gap: 10px;
  margin-top: 28px;
}

.contact-lines a,
.contact-lines span {
  display: block;
  padding: 15px 16px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--steel-dark);
  font-weight: 800;
}

.phone-list {
  display: grid;
  gap: 10px;
}

.footer-phone-list {
  margin: 0 0 8px;
  color: rgba(255, 255, 255, 0.76);
}

.phone-link {
  direction: ltr;
  unicode-bidi: isolate;
}

.inquiry-form {
  display: grid;
  gap: 14px;
  padding: 24px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

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

.inquiry-form span {
  color: var(--steel-dark);
  font-size: 14px;
  font-weight: 900;
}

.inquiry-form input,
.inquiry-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  outline: 0;
  color: var(--ink);
  background: #fbfcfd;
}

.inquiry-form input {
  min-height: 46px;
  padding: 0 13px;
}

.inquiry-form textarea {
  resize: vertical;
  min-height: 112px;
  padding: 12px 13px;
}

.inquiry-form input:focus,
.inquiry-form textarea:focus {
  border-color: var(--steel);
  box-shadow: 0 0 0 3px rgba(47, 89, 109, 0.12);
}

.form-result {
  min-height: 22px;
  margin: 0;
  color: var(--green);
  font-size: 14px;
  font-weight: 800;
}

.site-footer {
  color: rgba(255, 255, 255, 0.76);
  background: #132936;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 0.7fr;
  gap: 32px;
  padding: 42px 0;
}

.footer-grid strong,
.footer-grid span {
  display: block;
  margin-bottom: 8px;
  color: #fff;
  font-size: 17px;
  font-weight: 900;
}

.footer-grid p {
  margin: 0;
}

.product-drawer {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  pointer-events: none;
  visibility: hidden;
}

.product-drawer.is-open {
  pointer-events: auto;
  visibility: visible;
}

.drawer-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(12, 22, 30, 0.62);
  opacity: 0;
  transition: opacity 0.22s ease;
}

.product-drawer.is-open .drawer-backdrop {
  opacity: 1;
}

.drawer-panel {
  position: relative;
  justify-self: end;
  display: grid;
  grid-template-rows: minmax(240px, 42vh) 1fr;
  width: min(520px, 100%);
  height: 100%;
  overflow: auto;
  background: var(--paper);
  box-shadow: -18px 0 48px rgba(0, 0, 0, 0.24);
  transform: translateX(100%);
  transition: transform 0.24s ease;
}

.product-drawer.is-open .drawer-panel {
  transform: translateX(0);
}

.drawer-panel img {
  width: 100%;
  height: 100%;
  min-height: 240px;
  object-fit: cover;
  background: var(--soft);
}

.drawer-close {
  position: absolute;
  top: 14px;
  right: 14px;
  display: grid;
  width: 42px;
  height: 42px;
  padding: 0;
  place-items: center;
  border: 0;
  color: #fff;
  background: rgba(19, 41, 54, 0.78);
  border-radius: 50%;
  font-size: 28px;
  line-height: 1;
}

.drawer-content {
  padding: 28px;
}

.drawer-content h2 {
  margin-bottom: 12px;
  color: var(--steel-dark);
  font-size: 31px;
}

.drawer-content p:not(.eyebrow) {
  color: var(--muted);
}

.drawer-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0;
}

.drawer-details {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.detail-block {
  padding: 14px;
  background: #f7fafb;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.detail-block h3 {
  margin: 0 0 7px;
  color: var(--steel-dark);
  font-size: 15px;
}

.detail-block p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.float-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 45;
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 0;
  color: #fff;
  background: var(--steel-dark);
  border-radius: 50%;
  box-shadow: 0 14px 28px rgba(23, 32, 42, 0.24);
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
}

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

@media (max-width: 1060px) {
  .site-header {
    grid-template-columns: auto auto auto auto;
  }

  .main-nav {
    position: fixed;
    top: 76px;
    right: 16px;
    left: 16px;
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 10px;
    color: var(--ink);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav a {
    padding: 14px 12px;
    border-bottom: 1px solid var(--line);
  }

  .main-nav a:last-child {
    border-bottom: 0;
  }

  .nav-toggle {
    display: block;
    justify-self: end;
    order: 2;
  }

  .header-cta {
    order: 3;
  }

  .language-select {
    order: 4;
  }

  .hero-grid,
  .capability-grid,
  .quality-grid,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    align-items: end;
  }

  .hero-panel {
    max-width: 720px;
  }

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

  .proof,
  .application-grid,
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-grid,
  .seo-keyword-grid,
  .category-overview {
    grid-template-columns: repeat(3, 1fr);
  }

  .product-toolbar,
  .split-heading {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  :root {
    --shell: min(100% - 28px, 1180px);
  }

  .site-header {
    min-height: 68px;
    padding: 10px 14px;
    gap: 10px;
  }

  .brand {
    min-width: 0;
  }

  .brand-logo {
    width: 178px;
    max-height: 48px;
    padding: 3px 8px;
  }

  .header-cta {
    min-height: 38px;
    padding: 0 10px;
    font-size: 13px;
  }

  .language-select {
    min-height: 38px;
    padding: 0 8px;
    font-size: 12px;
  }

  .language-select select {
    min-width: 86px;
  }

  .nav-toggle {
    width: 40px;
    height: 40px;
  }

  .main-nav {
    top: 68px;
  }

  .hero,
  .hero-grid {
    min-height: 88vh;
  }

  .hero-grid {
    padding-top: 102px;
    padding-bottom: 48px;
  }

  .hero h1 {
    font-size: clamp(35px, 11vw, 48px);
  }

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

  .hero-actions .button {
    flex: 1 1 150px;
  }

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

  .quick-grid a {
    min-height: 60px;
    font-size: 14px;
  }

  .proof,
  .application-grid,
  .news-grid,
  .category-overview,
  .seo-keyword-grid,
  .product-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .seo-keywords {
    padding: 22px;
  }

  .proof {
    margin-top: 42px;
  }

  .products-section,
  .applications,
  .news-section,
  .contact {
    padding: 64px 0;
  }

  .product-toolbar {
    top: 68px;
    padding: 12px;
  }

  .filter-tabs {
    flex-wrap: nowrap;
    margin-right: -12px;
    padding-bottom: 4px;
    overflow-x: auto;
  }

  .filter-tabs button {
    flex: 0 0 auto;
  }

  .product-body {
    min-height: 282px;
  }

  .capability,
  .quality {
    padding: 70px 0;
  }

  .process-row {
    grid-template-columns: 44px 1fr;
    gap: 12px;
    padding: 18px;
  }

  .spec-table div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .drawer-panel {
    grid-template-rows: 34vh 1fr;
  }

  .drawer-content {
    padding: 22px;
  }
}

@media (max-width: 420px) {
  .site-header {
    grid-template-columns: auto auto auto;
  }

  .header-cta {
    display: none;
  }

  .nav-toggle {
    justify-self: end;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero-panel div {
    padding: 18px;
  }

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