:root {
  --wika-blue: #00549f;
  --wika-blue-dark: #003862;
  --wika-blue-soft: #eef5fb;
  --ink: #101923;
  --muted: #5d6b7a;
  --line: #d9e1ea;
  --line-strong: #bcc8d6;
  --soft: #f4f7fa;
  --steel: #273747;
  --white: #ffffff;
  --accent: #00a3e0;
  --success: #1d7f5f;
  --shadow: 0 18px 42px rgba(16, 25, 35, 0.11);
  --shadow-tight: 0 10px 24px rgba(16, 25, 35, 0.08);
  --radius: 4px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
  background:
    linear-gradient(90deg, rgba(16, 25, 35, 0.035) 1px, transparent 1px) 0 0 / 80px 80px,
    linear-gradient(180deg, #ffffff 0%, #f7f9fb 100%);
}

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

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

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

.container,
.header-inner,
.footer-inner {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--line-strong);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.85) inset, 0 8px 22px rgba(16, 25, 35, 0.045);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  min-width: 240px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 850;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 2px;
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.16), transparent 42%),
    var(--wika-blue);
  box-shadow: 0 12px 24px rgba(0, 84, 159, 0.22);
  letter-spacing: 0;
}

.brand-name {
  display: block;
  font-size: 1.05rem;
  line-height: 1.15;
}

.brand-sub {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 720;
}

.nav {
  display: flex;
  align-items: center;
  gap: 20px;
  color: #1f2f40;
  font-size: 0.92rem;
  font-weight: 760;
}

.nav a,
.nav-dropdown summary {
  position: relative;
  padding: 24px 0;
}

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

.nav a:hover::after,
.nav a:focus-visible::after,
.nav-dropdown summary:hover::after,
.nav-dropdown summary:focus-visible::after,
.nav-dropdown[open] summary::after {
  transform: scaleX(1);
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown summary {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  list-style: none;
  cursor: pointer;
}

.nav-dropdown summary::-webkit-details-marker {
  display: none;
}

.nav-dropdown summary::before {
  content: "";
  width: 7px;
  height: 7px;
  margin-top: -3px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform 180ms ease;
}

.nav-dropdown[open] summary::before {
  margin-top: 3px;
  transform: rotate(225deg);
}

.nav-dropdown-panel {
  position: absolute;
  top: calc(100% - 10px);
  left: 50%;
  z-index: 30;
  width: 342px;
  display: grid;
  gap: 4px;
  padding: 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 22px 52px rgba(16, 25, 35, 0.18);
  transform: translateX(-50%);
}

.nav-dropdown-panel a {
  padding: 10px 12px;
  border-radius: 6px;
  color: #26364a;
  white-space: normal;
}

.nav-dropdown-panel a::after {
  content: none;
}

.nav-dropdown-panel a:hover,
.nav-dropdown-panel a:focus-visible {
  color: var(--wika-blue);
  background: var(--wika-blue-soft);
}

.nav-dropdown-panel .menu-link {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  padding: 9px 10px;
}

.menu-thumb {
  width: 46px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(17, 24, 39, 0.1);
  border-radius: 6px;
  background: var(--white);
}

.menu-thumb img {
  width: 38px;
  height: 30px;
  object-fit: contain;
  filter: none;
}

.nav-cta {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  padding: 0 16px !important;
  border-radius: 3px;
  color: var(--white);
  background: linear-gradient(180deg, #0067bb, var(--wika-blue-dark));
  box-shadow: 0 10px 22px rgba(0, 84, 159, 0.22);
}

.nav-cta::after {
  content: none !important;
}

.nav-cta:hover,
.nav-cta:focus-visible {
  color: var(--white);
  background: var(--wika-blue-dark);
}

.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 3px;
  font-weight: 820;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

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

.button-primary {
  color: var(--white);
  border-color: rgba(0, 63, 119, 0.3);
  background: linear-gradient(180deg, #0069bf 0%, #004b8f 100%);
  box-shadow: 0 12px 28px rgba(0, 84, 159, 0.26);
}

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

.button-secondary {
  color: var(--ink);
  border-color: var(--line-strong);
  background: var(--white);
}

.button-secondary:hover {
  border-color: rgba(0, 84, 159, 0.38);
  box-shadow: 0 12px 26px rgba(17, 24, 39, 0.07);
}

.hero {
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(6, 15, 25, 0.99) 0%, rgba(0, 35, 64, 0.94) 46%, rgba(0, 84, 159, 0.4) 100%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px) 0 0 / 92px 92px,
    var(--hero-image) center / cover no-repeat,
    linear-gradient(135deg, #06101a, #004b8f);
  border-bottom: 1px solid #0b2740;
}

.hero-inner {
  min-height: 76svh;
  display: grid;
  align-content: center;
  padding: 92px 0 78px;
}

.hero-copy {
  width: min(720px, 100%);
}

.eyebrow,
.kicker {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 860;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: clamp(2.2rem, 4.45vw, 4.35rem);
  line-height: 1.04;
  letter-spacing: 0;
}

.lead {
  max-width: 680px;
  margin-bottom: 24px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.06rem;
}

.search-panel {
  max-width: 720px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 24px 58px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(12px);
}

#check-ma {
  scroll-margin-top: 110px;
}

.search-panel input {
  min-width: 0;
  height: 48px;
  padding: 0 15px;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 6px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.11);
  outline: none;
}

.search-panel input::placeholder {
  color: rgba(255, 255, 255, 0.68);
}

.search-note {
  grid-column: 1 / -1;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.88rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.metric-strip {
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background: var(--white);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric {
  padding: 24px 24px;
  border-left: 1px solid var(--line);
}

.metric:first-child {
  border-left: 0;
}

.metric strong {
  display: block;
  color: var(--steel);
  font-size: 1.38rem;
  line-height: 1.1;
}

.metric span {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 720;
}

.section {
  padding: 78px 0;
  background: rgba(255, 255, 255, 0.82);
}

.section-soft {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(16, 25, 35, 0.035) 1px, transparent 1px) 0 0 / 80px 80px,
    var(--soft);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading.center {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section-heading h2 {
  margin: 8px 0 12px;
  font-size: clamp(1.72rem, 2.75vw, 2.76rem);
  line-height: 1.14;
  letter-spacing: 0;
}

.section-heading p {
  color: var(--muted);
  font-size: 1.02rem;
}

.grid {
  display: grid;
  gap: 18px;
}

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

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card,
.product-card,
.contact-card,
.form-panel,
.quote-panel,
.step-card {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow-tight);
}

.card {
  padding: 24px;
}

.category-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  overflow: hidden;
  padding: 0;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.category-card:hover,
.product-card:hover {
  border-color: rgba(0, 84, 159, 0.34);
  box-shadow: 0 18px 42px rgba(16, 25, 35, 0.12);
  transform: translateY(-2px);
}

.category-card h3,
.category-card p {
  margin-right: 22px;
  margin-left: 22px;
}

.category-card h3 {
  margin-top: 20px;
}

.category-card .meta-line {
  margin-top: auto;
  margin-bottom: 22px;
  padding-top: 8px;
}

.category-media {
  height: 156px;
  display: grid;
  place-items: center;
  padding: 22px;
  background:
    linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  border-bottom: 1px solid var(--line);
}

.category-media img {
  width: min(100%, 180px);
  height: 112px;
  object-fit: contain;
  filter: none;
}

.icon-box {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 6px;
  color: var(--white);
  background: var(--wika-blue);
  font-weight: 860;
}

.card h3 {
  margin-bottom: 10px;
  font-size: 1.22rem;
  line-height: 1.25;
}

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

.meta-line {
  margin-bottom: 0;
  color: var(--wika-blue-dark) !important;
  font-size: 0.9rem;
  font-weight: 820;
}

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

.product-card {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.product-media {
  height: 238px;
  display: grid;
  place-items: center;
  padding: 26px;
  background:
    linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  border-bottom: 1px solid var(--line);
}

.product-media img {
  width: min(100%, 230px);
  height: 176px;
  object-fit: contain;
  object-position: center;
  filter: none;
}

.product-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 20px;
}

.product-meta {
  margin-bottom: 8px;
  color: var(--wika-blue-dark);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.product-body h3 {
  margin-bottom: 10px;
  font-size: 1.17rem;
  line-height: 1.28;
}

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

.product-body .meta-line {
  margin-top: auto;
  padding-top: 8px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 0.72fr);
  gap: 36px;
  align-items: start;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
  color: #2b3b4f;
}

.check-list li::before {
  content: "";
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border-radius: 50%;
  background:
    linear-gradient(135deg, transparent 50%, rgba(255, 255, 255, 0.16) 0),
    var(--success);
}

.quote-panel {
  padding: 28px;
  background:
    linear-gradient(135deg, rgba(0, 72, 132, 0.98), rgba(5, 18, 31, 0.98)),
    var(--wika-blue-dark);
  color: var(--white);
}

.quote-panel p {
  color: rgba(255, 255, 255, 0.82);
}

.quote-list {
  display: grid;
  gap: 12px;
  margin: 20px 0 24px;
  padding: 0;
  list-style: none;
}

.quote-list li {
  padding: 12px 14px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.12);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.step-card {
  padding: 22px;
}

.step-number {
  display: inline-grid;
  width: 34px;
  height: 34px;
  place-items: center;
  margin-bottom: 16px;
  border-radius: 6px;
  color: var(--white);
  background: var(--wika-blue);
  font-weight: 860;
}

.step-card h3 {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

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

.page-hero {
  background:
    linear-gradient(90deg, rgba(6, 15, 25, 0.98), rgba(0, 58, 105, 0.88)),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px) 0 0 / 92px 92px,
    var(--page-image) center right / contain no-repeat,
    #052035;
  color: var(--white);
  border-bottom: 1px solid #0b2740;
}

.page-hero-inner {
  padding: 72px 0 68px;
}

.page-hero h1 {
  max-width: 960px;
  font-size: clamp(1.9rem, 3.6vw, 3.5rem);
  line-height: 1.06;
}

.page-hero .lead {
  margin-bottom: 0;
}

.category-hero .page-hero-inner {
  padding-top: 82px;
  padding-bottom: 78px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.88rem;
  font-weight: 760;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.86);
}

.spec-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.spec-cloud a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 13px;
  border: 1px solid rgba(0, 84, 159, 0.18);
  border-radius: 999px;
  color: #24405f;
  background: #f7fbff;
  font-size: 0.9rem;
  font-weight: 800;
}

.spec-cloud a:hover,
.spec-cloud a:focus-visible {
  color: var(--wika-blue);
  border-color: rgba(0, 84, 159, 0.38);
  background: var(--white);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow-tight);
}

.product-table {
  width: 100%;
  min-width: 1040px;
  border-collapse: collapse;
  font-size: 0.93rem;
}

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

.product-table th {
  color: #26364a;
  background: #eef3f8;
  font-size: 0.82rem;
  font-weight: 860;
  text-transform: uppercase;
}

.product-table tbody tr:last-child td {
  border-bottom: 0;
}

.product-table strong,
.product-table span {
  display: block;
}

.product-table strong {
  color: var(--ink);
  overflow-wrap: anywhere;
}

.product-table span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.84rem;
}

.product-table a {
  color: var(--wika-blue);
  font-weight: 850;
}

.product-table td {
  overflow-wrap: anywhere;
}

.table-product {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  min-width: 220px;
}

.product-thumb {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--white);
}

.product-thumb img {
  width: 54px;
  height: 54px;
  object-fit: contain;
  filter: none;
}

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

.faq-list details {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow-tight);
}

.faq-list summary {
  cursor: pointer;
  padding: 16px 18px;
  color: #26364a;
  font-weight: 850;
}

.faq-list p {
  margin: 0;
  padding: 0 18px 18px;
  color: var(--muted);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.62fr);
  gap: 24px;
  align-items: start;
}

.form-panel {
  padding: 26px;
}

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

.field {
  display: grid;
  gap: 6px;
}

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

.field label {
  color: #26364a;
  font-size: 0.9rem;
  font-weight: 820;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
  color: var(--ink);
  outline: none;
}

.field input,
.field select {
  height: 46px;
  padding: 0 12px;
}

.field textarea {
  min-height: 154px;
  padding: 12px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: var(--wika-blue);
  box-shadow: 0 0 0 3px rgba(0, 84, 159, 0.12);
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.contact-stack {
  display: grid;
  gap: 16px;
}

.contact-card {
  padding: 22px;
}

.contact-card h3 {
  margin-bottom: 8px;
  font-size: 1.08rem;
}

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

.contact-card strong {
  display: block;
  margin-top: 8px;
  color: var(--ink);
}

.article-list {
  display: grid;
  gap: 18px;
}

.article-card {
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 1fr);
  gap: 18px;
  align-items: stretch;
  overflow: hidden;
}

.article-media {
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--white);
}

.article-media img {
  width: min(100%, 190px);
  height: 146px;
  object-fit: contain;
  filter: none;
}

.article-body {
  padding: 22px;
}

.article-body h3 {
  margin-bottom: 10px;
  font-size: 1.18rem;
  line-height: 1.28;
}

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

.article-body .article-figure {
  margin: 26px 0;
  text-align: center;
}

.article-body .article-figure img {
  width: min(100%, 460px);
  max-height: 340px;
  object-fit: contain;
  padding: 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  box-shadow: var(--shadow-tight);
}

.article-body .article-figure figcaption {
  max-width: 620px;
  margin: 10px auto 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.article-insight {
  margin: 28px 0;
  padding: 22px;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--wika-blue);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  box-shadow: var(--shadow-tight);
}

.article-insight h2 {
  margin: 0 0 16px !important;
  font-size: 1.32rem;
}

.insight-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.insight-grid strong {
  display: block;
  margin-bottom: 7px;
  color: var(--ink);
}

.article-body .insight-grid ul {
  display: grid;
  gap: 7px;
  margin: 0;
  padding-left: 18px;
}

.overview-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.48fr);
  gap: 46px;
  align-items: center;
}

.overview-copy .section-heading {
  margin-bottom: 26px;
}

.overview-visual {
  display: grid;
  gap: 14px;
  align-self: stretch;
  min-height: 360px;
  padding: 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  box-shadow: var(--shadow-tight);
}

.overview-image {
  display: grid;
  min-height: 280px;
  place-items: center;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.overview-image img {
  width: min(100%, 340px);
  max-height: 300px;
  object-fit: contain;
}

.overview-caption {
  display: grid;
  gap: 2px;
  padding: 4px 2px 0;
}

.overview-caption span {
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 860;
  text-transform: uppercase;
}

.overview-caption strong {
  color: var(--ink);
  font-size: 1.02rem;
  line-height: 1.28;
}

.product-detail {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 34px;
  align-items: start;
}

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

.product-main-image,
.product-sub-image {
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  box-shadow: var(--shadow-tight);
}

.product-main-image {
  min-height: 420px;
  padding: 44px;
}

.product-main-image img {
  width: min(100%, 380px);
  max-height: 330px;
  object-fit: contain;
  filter: none;
}

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

.product-sub-image {
  min-height: 112px;
  padding: 14px;
}

.product-sub-image img {
  width: 100%;
  height: 82px;
  object-fit: contain;
}

.product-summary {
  display: grid;
  gap: 18px;
}

.product-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.product-badges span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 11px;
  border: 1px solid rgba(0, 84, 159, 0.18);
  border-radius: 999px;
  color: #24405f;
  background: #f7fbff;
  font-size: 0.86rem;
  font-weight: 820;
}

.product-intro {
  color: var(--muted);
  font-size: 1.03rem;
}

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

.info-item {
  padding: 14px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--white);
}

.info-item span,
.spec-table span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 780;
}

.info-item strong,
.spec-table strong {
  display: block;
  margin-top: 3px;
  color: var(--ink);
}

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

.spec-row {
  display: grid;
  grid-template-columns: minmax(180px, 0.42fr) minmax(0, 1fr);
  gap: 18px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

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

.site-footer {
  color: rgba(255, 255, 255, 0.76);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background:
    linear-gradient(145deg, #06101a 0%, #0b2338 54%, #050b12 100%);
}

.footer-inner {
  padding: 54px 0 30px;
}

.footer-kicker {
  margin-bottom: 24px;
  color: rgba(255, 255, 255, 0.56);
  font-size: 0.78rem;
  font-weight: 840;
  letter-spacing: 0;
  text-transform: uppercase;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.28fr 0.86fr 0.96fr 1.36fr;
  gap: 30px;
  padding-bottom: 34px;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  color: var(--white);
  font-weight: 850;
}

.footer-logo-title,
.footer-logo-sub {
  display: block;
}

.footer-logo-title {
  font-size: 1.08rem;
  line-height: 1.15;
}

.footer-logo-sub {
  margin-top: 3px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.78rem;
  font-weight: 720;
}

.footer-brand p {
  max-width: 430px;
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.94rem;
}

.footer-company {
  display: grid;
  gap: 4px;
  margin-top: 22px;
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.045);
}

.footer-company strong,
.footer-company span {
  display: block;
}

.footer-company strong {
  color: var(--white);
  font-size: 0.95rem;
  text-transform: uppercase;
}

.footer-company span {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.86rem;
}

.footer-column h3 {
  margin: 6px 0 18px;
  color: var(--white);
  font-size: 1rem;
  line-height: 1.25;
}

.footer-links {
  display: grid;
  gap: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.93rem;
  transition: color 180ms ease, transform 180ms ease;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--white);
  transform: translateX(2px);
}

.footer-contact {
  display: grid;
  gap: 13px;
}

.footer-contact span {
  display: block;
  margin-bottom: 2px;
  color: rgba(255, 255, 255, 0.48);
  font-size: 0.76rem;
  font-weight: 840;
  text-transform: uppercase;
}

.footer-contact p,
.footer-contact a {
  margin: 0;
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.92rem;
  line-height: 1.45;
}

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

.footer-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  margin-bottom: 24px;
  padding: 20px 22px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
}

.footer-cta strong,
.footer-cta span {
  display: block;
}

.footer-cta strong {
  color: var(--white);
  font-size: 1.05rem;
}

.footer-cta span {
  margin-top: 3px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.92rem;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.84rem;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.72);
  font-weight: 760;
}

@media (max-width: 980px) {
  .header-inner {
    flex-wrap: wrap;
    padding: 14px 0;
  }

  .nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .nav a,
  .nav-dropdown summary {
    padding: 8px 0 12px;
  }

  .nav a::after,
  .nav-dropdown summary::after {
    bottom: 6px;
  }

  .nav-dropdown-panel {
    top: calc(100% - 2px);
    left: 0;
    width: 300px;
    transform: none;
  }

  .metrics,
  .grid-4,
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-3,
  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .split,
  .contact-layout,
  .article-card,
  .product-detail,
  .overview-layout {
    grid-template-columns: 1fr;
  }

  .overview-visual {
    min-height: 0;
  }

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

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

  .hero {
    background:
      linear-gradient(90deg, rgba(6, 15, 25, 0.98) 0%, rgba(0, 45, 82, 0.92) 100%),
      linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px) 0 0 / 92px 92px,
      var(--hero-image) center / cover no-repeat,
      linear-gradient(135deg, #06101a, #004b8f);
  }
}

@media (max-width: 640px) {
  .container,
  .header-inner,
  .footer-inner {
    width: min(100% - 28px, var(--container));
  }

  .brand {
    min-width: 0;
  }

  .brand-sub {
    display: none;
  }

  .hero-inner {
    min-height: 680px;
    padding: 62px 0;
  }

  .search-panel,
  .form-grid,
  .metrics,
  .grid-4,
  .grid-3,
  .product-grid,
  .steps,
  .footer-main {
    grid-template-columns: 1fr;
  }

  .nav {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px 12px;
    overflow: visible;
    padding-bottom: 0;
    text-align: center;
  }

  .nav a,
  .nav-dropdown summary {
    justify-content: center;
    padding: 4px 0 8px;
    line-height: 1.25;
    white-space: normal;
  }

  .nav-dropdown-panel {
    left: 50%;
    width: min(82vw, 300px);
    text-align: left;
    transform: translateX(-50%);
  }

  .nav-cta {
    grid-column: 1 / -1;
    min-height: 36px;
    padding: 0 12px !important;
    justify-content: center;
    white-space: nowrap;
  }

  .product-main-image {
    min-height: 310px;
    padding: 30px;
  }

  .overview-image {
    min-height: 230px;
    padding: 22px;
  }

  .product-thumbs,
  .info-grid {
    grid-template-columns: 1fr;
  }

  .spec-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  #check-ma {
    scroll-margin-top: 140px;
  }

  .metric {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .page-hero {
    background:
      linear-gradient(90deg, rgba(6, 15, 25, 0.98), rgba(0, 58, 105, 0.9)),
      linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px) 0 0 / 92px 92px,
      var(--page-image) right bottom / auto 48% no-repeat,
      #052035;
  }

  .page-hero-inner {
    padding: 58px 0 54px;
  }

  .table-product {
    grid-template-columns: 56px minmax(0, 1fr);
    min-width: 190px;
  }

  .product-thumb {
    width: 56px;
    height: 56px;
  }

  .product-thumb img {
    width: 48px;
    height: 48px;
  }

  .metric:first-child {
    border-top: 0;
  }

  .section {
    padding: 56px 0;
  }

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

/* ==== SEO-KIT-HELPERS (blocks sinh tự động) ==== */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
@media(max-width:760px){.grid-2{grid-template-columns:1fr}}
.prose p{margin:0 0 14px;line-height:1.75;max-width:72ch}
.prose a{color:#00549f;font-weight:600}
.check-list-warn li::marker{color:#c0392b}

/* ---- WIKA build-20260710 supplementary ---- */
.breadcrumb-bar{background:#f1f6fb;border-bottom:1px solid #e2ebf3;font-size:.86rem}
.breadcrumb-bar .container{padding-top:10px;padding-bottom:10px;color:#5a6a78}
.breadcrumb-bar a{color:#00549f;text-decoration:none}.breadcrumb-bar a:hover{text-decoration:underline}
.hero-slim{padding:54px 0}
.product-hero{padding:36px 0 8px;background:linear-gradient(180deg,#eef5fb,#fff)}
.product-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:38px;align-items:center}
.product-hero-copy h1{margin:.2em 0 .3em;font-size:1.9rem;line-height:1.2}
.product-hero .eyebrow{color:#00549f;font-weight:700;font-size:.82rem;text-transform:uppercase;letter-spacing:.04em}
.product-visual{margin:0;background:#fff;border:1px solid #dce6f0;border-radius:16px;padding:22px;text-align:center;box-shadow:0 14px 34px rgba(16,42,67,.08)}
.product-visual img{max-width:100%;height:auto;max-height:340px;object-fit:contain}
.product-visual figcaption{margin-top:12px;color:#7a8794;font-size:.8rem}
.product-visual.placeholder{display:flex;flex-direction:column;justify-content:center;min-height:260px}
.ph-mark{display:inline-flex;align-items:center;justify-content:center;font-weight:800;color:#00549f;background:#e7f0f9;border-radius:10px;padding:10px 16px;font-size:1.4rem;letter-spacing:.05em}
.product-media .ph-mark{width:100%;height:100%;min-height:150px}
.quick-facts{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}
.quick-facts>div{background:#fff;border:1px solid #e0e9f2;border-radius:10px;padding:10px 14px}
.quick-facts span{display:block;color:#7a8794;font-size:.76rem;text-transform:uppercase;letter-spacing:.03em}
.quick-facts strong{color:#12324f;font-size:.98rem}
.doc-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.doc-list li a{display:block;background:#fff;border:1px solid #dce6f0;border-radius:10px;padding:12px 16px;color:#00549f;text-decoration:none;font-weight:600}
.doc-list li a:hover{border-color:#00549f;background:#f3f8fd}
.faq-list{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid #dce6f0;border-radius:12px;padding:4px 18px}
.faq-item summary{cursor:pointer;font-weight:700;color:#12324f;padding:14px 0}
.faq-item p{margin:0 0 16px;color:#4a5866;line-height:1.7}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:10px 0 0}
.tag-list li{background:#eef5fb;border:1px solid #d8e6f2;color:#245079;border-radius:999px;padding:5px 12px;font-size:.82rem}
.cat-fam{margin:6px 0 26px;color:#5a6a78}.cat-fam strong{color:#12324f}
.center{text-align:center}
@media(max-width:820px){.product-hero-grid{grid-template-columns:1fr}.quick-facts{grid-template-columns:1fr 1fr}}