:root {
  --bg: #f4f7fb;
  --panel: #ffffff;
  --panel-soft: #f8fbff;
  --text: #0f1b2d;
  --muted: #5a6678;
  --line: #d9e1ec;
  --accent: #1d4ed8;
  --accent-strong: #173ea5;
  --accent-soft: #e7efff;
  --shadow: 0 18px 40px rgba(17, 35, 64, 0.08);
  --radius: 8px;
  --radius-sm: 6px;
  --max: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

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

a:hover {
  color: var(--accent);
}

button,
summary {
  font: inherit;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
}

.skip-link:focus {
  left: 16px;
  top: 16px;
  z-index: 1000;
  padding: 10px 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.site-shell {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(10px);
  background: rgba(70, 130, 180, 0.92);
  border-bottom: 1px solid rgba(217, 225, 236, 0.85);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 80px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand img {
  width: 230px;
  height: 93px;
  object-fit: contain;
}

.brand__meta {
  display: none;
}

.menu-toggle {
  display: none;
  margin-left: auto;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  border-radius: 8px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.menu-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
}

.site-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link,
.nav-summary {
  color:#fff;
  font-weight: 700;
  font-size: 0.98rem;
}

.nav-summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

.nav-group {
  position: relative;
}

.nav-group[open] .nav-summary {
  color: var(--accent);
}

.nav-caret {
  width: 10px;
  height: 10px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  margin-top: -2px;
}

.nav-panel {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  width: min(760px, 78vw);
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.nav-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 20px;
}

.nav-col__title {
  display: block;
  margin: 0 0 8px;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--accent-strong);
}

.nav-col a {
  display: block;
  margin: 6px 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-col a:hover {
  color: var(--accent);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 28px 0 26px;
}

.hero__panel {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.9fr);
  gap: 24px;
  align-items: stretch;
  border-radius: 0;
}

.hero__copy {
  min-height: 520px;
  padding: 56px;
  border-radius: 0;
  background:
    linear-gradient(110deg, rgba(13, 23, 40, 0.80), rgba(13, 23, 40, 0.48)),
    var(--hero-image) center/cover no-repeat;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  box-shadow: var(--shadow);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0;
  font-size: 0.84rem;
  font-weight: 700;
  color: #cbd7ff;
  margin: 0 0 14px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.1rem, 3.2vw, 3.6rem);
  line-height: 1.05;
}

.hero p {
  max-width: 720px;
  margin: 16px 0 0;
  font-size: 1.04rem;
  color: rgba(255, 255, 255, 0.88);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 700;
}

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

.btn--primary:hover {
  background: var(--accent-strong);
  color: #fff;
}

.btn--secondary {
  border-color: rgba(255, 255, 255, 0.42);
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.btn--ghost {
  border-color: var(--line);
  background: var(--panel);
  color: var(--text);
}

.hero__aside {
  display: grid;
  gap: 16px;
}

.hero-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 0;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-card__image {
  aspect-ratio: 16 / 9;
  background: #dfe8f6;
}

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

.hero-card__body {
  padding: 22px;
}

.hero-card__body h2 {
  margin: 0 0 8px;
  font-size: 1.18rem;
}

.quick-facts {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.quick-facts li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.quick-facts strong {
  color: var(--accent-strong);
}

.section {
  padding: 18px 0 0;
}

.section__band {
  padding: 28px 0;
}

.section__head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.section__head h2 {
  margin: 0;
  font-size: 1.6rem;
}

.section__head p {
  margin: 0;
  color: var(--muted);
  max-width: 720px;
}

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

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

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

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

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 6px 20px rgba(17, 35, 64, 0.04);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.compact-card {
  padding: 18px;
}

.compact-card h3 {
  margin-bottom: 6px;
  font-size: 1rem;
}

.compact-card p {
  font-size: 0.94rem;
}

.muted-note {
  color: var(--muted);
}

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

.card a.link {
  display: inline-flex;
  margin-top: 14px;
  color: var(--accent);
  font-weight: 700;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  font-size: 0.92rem;
}

.alt-band {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.65), rgba(255, 255, 255, 0.9));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 18px;
}

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

.feature-list li {
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.feature-list strong {
  display: block;
  margin-bottom: 4px;
}

.contact-box {
  display: grid;
  gap: 12px;
}

.form-shell {
  display: grid;
  gap: 18px;
}

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

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

.field label {
  font-weight: 700;
  color: var(--text);
}

.field input,
.field textarea,
.field select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  padding: 12px 14px;
  font: inherit;
}

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

.contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.contact-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
}

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

details.faq {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  padding: 16px 18px;
}

details.faq summary {
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

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

details.faq p {
  color: var(--muted);
  margin: 10px 0 0;
}

.page-hero {
  padding: 30px 0 10px;
}

.page-hero__panel {
  padding: 34px;
  background: linear-gradient(110deg, rgba(14, 24, 44, 0.82), rgba(14, 24, 44, 0.56)), var(--page-hero) center/cover no-repeat;
  color: #fff;
  box-shadow: var(--shadow);
}

.page-hero__panel h1 {
  margin: 0;
  font-size: clamp(1.9rem, 3vw, 3rem);
}

.page-hero__panel p {
  margin: 14px 0 0;
  max-width: 760px;
  color: rgba(255, 255, 255, 0.9);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.92rem;
  color: var(--muted);
  margin: 0 0 12px;
}

.breadcrumbs a {
  color: var(--muted);
}

.breadcrumbs span {
  color: #99a4b5;
}

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

.section-title h2 {
  margin: 0;
  font-size: 1.45rem;
}

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

.product-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.product-card__image {
  aspect-ratio: 4 / 3;
  background: #dfe8f6;
}

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

.product-card__body {
  padding-top: 16px;
}

.product-card__body h3 {
  margin: 0 0 8px;
}

.product-card__body ul {
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.tag-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 18px;
}

.tag-group {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.tag-group h3 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.tag-group ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.details-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 6px 20px rgba(17, 35, 64, 0.04);
}

.details-panel__header {
  padding: 22px 22px 0;
}

.details-panel__header h2 {
  margin: 0 0 8px;
}

.details-panel__header p {
  margin: 0;
  color: var(--muted);
}

.details-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: 18px;
  padding: 22px;
}

.details-copy {
  display: grid;
  gap: 18px;
  align-content: start;
}

.product-hero__image {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #e2e9f7;
}

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

.product-meta {
  display: grid;
  gap: 14px;
  align-content: start;
}

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

.spec-pill {
  padding: 14px;
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.spec-pill span {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 6px;
}

.spec-pill strong {
  display: block;
  color: var(--text);
}

.prose {
  color: var(--text);
}

.prose p {
  margin: 0 0 14px;
}

.spec-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

table.spec-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

.spec-table th,
.spec-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: center;
  vertical-align: top;
}

.spec-table th {
  width: 36%;
  background: #f7faff;
}

.spec-table tr:last-child th,
.spec-table tr:last-child td {
  border-bottom: 0;
}

.callout {
  display: grid;
  gap: 12px;
  background: linear-gradient(140deg, #10213d, #173ea5);
  color: #fff;
  border-radius: 8px;
  padding: 22px;
  box-shadow: var(--shadow);
}

.callout p {
  margin: 0;
  color: rgba(255, 255, 255, 0.9);
}

.footer {
  margin-top: 28px;
  padding: 28px 0 34px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

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

.about-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 22px;
  align-items: stretch;
}

.about-hero__copy {
  display: grid;
  align-content: end;
}

.about-hero__media {
  min-height: 100%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.05);
  overflow: hidden;
  border-radius: 18px;
}

.about-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 18px;
  display: block;
}

.about-gallery {
  display: grid;
  gap: 18px;
}

.about-gallery__lead {
  display: grid;
  gap: 0;
  overflow: hidden;
}

.about-gallery__lead img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  object-position: center;
  display: block;
}

.about-gallery__caption {
  padding: 18px 18px 20px;
}

.about-gallery__caption h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.about-gallery__caption p {
  margin: 0;
  color: var(--muted);
}

.about-gallery__item {
  display: grid;
  gap: 8px;
  padding: 0;
  overflow: hidden;
}

.about-gallery__item img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  object-position: center top;
  display: block;
  border-bottom: 1px solid var(--line);
}

.about-gallery__item p {
  margin: 0;
  padding: 0 14px 14px;
  color: var(--muted);
}

@media (max-width: 1100px) {
  .hero__panel,
  .about-hero,
  .split,
  .details-grid {
    grid-template-columns: 1fr;
  }

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

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

  .about-gallery__lead img {
    height: 240px;
  }

  .about-gallery__item img {
    height: 180px;
  }
}

@media (max-width: 860px) {
  .site-header__inner {
    min-height: 72px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: rgba(30,60,95, 0.98);
    border-bottom: 1px solid var(--line);
    padding: 14px 0 18px;
  }

  .site-nav.is-open {
    display: block;
  }

  .nav-list {
    width: min(var(--max), calc(100% - 32px));
    margin: 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-list > li {
    border-top: 1px solid var(--line);
    padding: 12px 0;
  }

  .nav-panel {
    position: static;
    width: 100%;
    margin-top: 12px;
    box-shadow: none;
  }

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

  .hero__copy {
    min-height: 440px;
    padding: 32px 22px;
  }

  .grid--4,
  .grid--3,
  .grid--2,
  .about-gallery,
  .form-grid,
  .tag-grid,
  .key-specs {
    grid-template-columns: 1fr;
  }

  .section__head,
  .section-title {
    align-items: start;
    flex-direction: column;
  }

  .brand img {
    width: 190px;
    height: 66px;
  }

  .about-gallery__lead img {
    height: 220px;
  }

  .about-gallery__item img {
    height: 350px;
  }
}