/* ============================================
   WXG Optics — Professional Theme
   ============================================ */

:root {
  --color-primary: #0066cc;
  --color-primary-dark: #004d99;
  --color-accent: #00b4d8;
  --color-accent-light: #48cae4;
  --color-dark: #0a1628;
  --color-dark-2: #111d33;
  --color-dark-3: #1a2744;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-text-light: #94a3b8;
  --color-white: #ffffff;
  --color-bg: #f8fafc;
  --color-border: #e2e8f0;
  --color-gold: #ffd166;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(10, 22, 40, 0.08);
  --shadow-lg: 0 12px 48px rgba(10, 22, 40, 0.15);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-h: 72px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 102, 204, 0.35);
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn--outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
}

.btn--lg {
  padding: 14px 32px;
  font-size: 15px;
}

.btn--full {
  width: 100%;
}

/* ---- Header ---- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.header--scrolled {
  box-shadow: var(--shadow);
}

.header__inner {
  display: flex;
  align-items: center;
  height: var(--header-h);
  gap: 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo__icon {
  width: 36px;
  height: 36px;
  color: var(--color-primary);
}

.logo__text {
  font-size: 20px;
  font-weight: 400;
  color: var(--color-dark);
  letter-spacing: -0.02em;
}

.logo__text strong {
  font-weight: 700;
  color: var(--color-primary);
}

.nav {
  flex: 1;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav__link {
  display: block;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: 6px;
  transition: var(--transition);
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-primary);
  background: rgba(0, 102, 204, 0.06);
}

.header__cta {
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 60px) 0 80px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center -30px;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    135deg,
    rgba(10, 22, 40, 0.95) 0%,
    rgba(10, 22, 40, 0.88) 40%,
    rgba(0, 50, 100, 0.82) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero__badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(0, 180, 216, 0.15);
  border: 1px solid rgba(0, 180, 216, 0.3);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent-light);
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}

.hero__title {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-white);
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero__highlight {
  color: var(--color-accent-light);
}

.hero__subtitle {
  font-size: 18px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 36px;
  max-width: 640px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 56px;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.stat__value {
  display: block;
  font-size: 24px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.stat__label {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 4px;
}

/* ---- Sections ---- */
.section {
  padding: 100px 0;
}

.section--products {
  background: var(--color-bg);
}

.section--advantages {
  background: var(--color-dark);
  color: var(--color-white);
}

.section--applications {
  background: var(--color-white);
}

.section--about {
  background: var(--color-bg);
}

.section__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}

.section__header--light .section__title {
  color: var(--color-white);
}

.section__tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.section--advantages .section__tag {
  color: var(--color-accent);
}

.section__title {
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-dark);
  margin-bottom: 16px;
}

.section__desc {
  font-size: 17px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ---- Product Cards ---- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-grid--featured {
  grid-template-columns: repeat(2, 1fr);
  margin-bottom: 24px;
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 102, 204, 0.2);
}

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

.product-card--featured .product-card__image {
  height: 220px;
  background: linear-gradient(135deg, #f0f4f8 0%, #e2e8f0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.product-card--featured .product-card__image img {
  max-height: 180px;
  width: auto;
  object-fit: contain;
}

.product-card__image--voa {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-3) 100%) !important;
}

.voa-visual svg {
  width: 200px;
  height: auto;
}

.product-card__body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card__tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  background: rgba(0, 102, 204, 0.08);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
  width: fit-content;
}

.product-card--voa .product-card__tag {
  color: var(--color-accent);
  background: rgba(0, 180, 216, 0.12);
}

.product-card__title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.product-card__desc {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 16px;
}

.product-card__specs {
  margin-bottom: 20px;
}

.product-card__specs li {
  font-size: 13px;
  color: var(--color-text);
  padding: 4px 0 4px 20px;
  position: relative;
}

.product-card__specs li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

.product-card__link {
  margin-top: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  transition: var(--transition);
}

.product-card:hover .product-card__link {
  color: var(--color-primary-dark);
}

.product-card--compact {
  padding: 28px;
  text-align: center;
}

.product-card--compact h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.product-card--compact p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.product-card__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  color: var(--color-primary);
}

.product-card__image--sm {
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.product-card__image--sm img {
  max-height: 80px;
  width: auto;
  object-fit: contain;
}

/* ---- Advantages ---- */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.advantage-card {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition);
}

.advantage-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(0, 180, 216, 0.3);
}

.advantage-card__icon {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.advantage-card__icon img {
  max-height: 64px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.85;
}

.advantage-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-white);
}

.advantage-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ---- Applications ---- */
.app-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.app-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 3/4;
  display: block;
}

.app-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.app-card:hover img {
  transform: scale(1.08);
}

.app-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 22, 40, 0.9) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  color: var(--color-white);
}

.app-card__overlay h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.app-card__overlay p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.4;
}

/* ---- About ---- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 60px;
  align-items: start;
}

.about__content p {
  font-size: 16px;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: 16px;
}

.about__content strong {
  color: var(--color-text);
  font-weight: 600;
}

.about__list {
  margin-top: 24px;
}

.about__list li {
  font-size: 15px;
  color: var(--color-text);
  padding: 8px 0 8px 28px;
  position: relative;
}

.about__list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.contact-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.contact-card h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 28px;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}

.contact-item svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 2px;
}

.contact-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: 2px;
}

.contact-item a {
  color: var(--color-primary);
  font-weight: 500;
  transition: var(--transition);
}

.contact-item a:hover {
  color: var(--color-primary-dark);
}

.contact-item span:not(.contact-label) {
  font-size: 14px;
  color: var(--color-text);
}

.contact-card .btn {
  margin-top: 12px;
}

/* ---- Footer ---- */
.footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.6);
  padding: 48px 0;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
}

.footer__brand .logo__text {
  color: var(--color-white);
  font-size: 18px;
  display: block;
  margin-bottom: 6px;
}

.footer__brand p {
  font-size: 13px;
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-left: auto;
}

.footer__links a {
  font-size: 14px;
  transition: var(--transition);
}

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

.footer__copy {
  width: 100%;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
  text-align: center;
}

/* ---- Products Page ---- */
.page-hero {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-3) 100%);
  padding: calc(var(--header-h) + 48px) 0 56px;
  color: var(--color-white);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  margin-bottom: 24px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.55);
  transition: var(--transition);
}

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

.breadcrumb__sep {
  color: rgba(255, 255, 255, 0.3);
}

.breadcrumb__current {
  color: rgba(255, 255, 255, 0.85);
}

.page-hero__title {
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.page-hero__desc {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.65);
  max-width: 640px;
  line-height: 1.7;
}

.section--products-page {
  padding-top: 64px;
  padding-bottom: 48px;
  background: var(--color-bg);
}

.section--models {
  padding: 64px 0;
  background: var(--color-white);
}

.section--more-products {
  padding: 64px 0;
  background: var(--color-bg);
}

.section__header--left {
  text-align: left;
  margin-left: 0;
  margin-right: 0;
  max-width: none;
}

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

/* Model cards */
.models-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.model-card {
  display: block;
  padding: 24px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: var(--transition);
}

.model-card:hover {
  border-color: rgba(0, 102, 204, 0.3);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.model-card__sku {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  font-family: 'Courier New', monospace;
  letter-spacing: 0.04em;
  color: var(--color-primary);
  background: rgba(0, 102, 204, 0.08);
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.model-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 8px;
  line-height: 1.35;
}

.model-card p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: 14px;
}

.model-card__specs {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-accent);
}

/* Catalog cards */
.catalog-card {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.catalog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 102, 204, 0.2);
}

.catalog-card__image {
  height: 180px;
  background: linear-gradient(135deg, #f0f4f8, #e2e8f0);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.catalog-card__image img {
  max-height: 140px;
  width: auto;
  object-fit: contain;
}

.catalog-card__body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.catalog-card__body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.catalog-card__body p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 16px;
}

.catalog-card__link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}

/* Specs strip */
.specs-strip {
  background: var(--color-dark);
  padding: 40px 0;
}

.specs-strip__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.specs-strip__item strong {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.specs-strip__item span {
  font-size: 13px;
  color: var(--color-text-light);
}

/* CTA box */
.section--cta {
  padding: 80px 0;
  background: var(--color-white);
}

.cta-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 48px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-lg);
  color: var(--color-white);
}

.cta-box__content h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.cta-box__content p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 480px;
  line-height: 1.6;
}

.cta-box__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  flex-shrink: 0;
}

.btn--outline-dark {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn--outline-dark:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
}

.btn--outline-dark:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
}

/* ---- Product List Page (Category) ---- */
.page-hero--compact {
  padding-bottom: 40px;
}

.page-hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.hero-badge {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(0, 180, 216, 0.12);
  border: 1px solid rgba(0, 180, 216, 0.25);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-accent-light);
}

.section--plist {
  padding: 48px 0 64px;
  background: var(--color-bg);
}

.plist-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}

.plist-main {
  min-width: 0;
}

/* Filter toolbar (October CMS AJAX: data-request="onSelbytype") */
.plist-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
  padding: 16px 20px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.plist-toolbar__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  flex: 1;
}

.plist-select {
  appearance: none;
  padding: 8px 36px 8px 14px;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  background: var(--color-bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E") no-repeat right 12px center;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
  min-width: 180px;
}

.plist-select:hover,
.plist-select:focus {
  border-color: var(--color-primary);
  outline: none;
}

.plist-customize-btn {
  flex-shrink: 0;
  padding: 8px 24px;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  line-height: 1.4;
  cursor: pointer;
  transition: var(--transition);
}

.plist-customize-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Product list items */
.plist-items {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.plist-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
  padding: 24px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.plist-item:hover {
  border-color: rgba(0, 102, 204, 0.25);
  box-shadow: var(--shadow);
}

.plist-item__image {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 160px;
  background: linear-gradient(135deg, #f0f4f8, #e8edf2);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.plist-item__image:hover {
  background: linear-gradient(135deg, #e8edf2, #dde4eb);
}

.plist-item__image img {
  max-height: 130px;
  width: auto;
  object-fit: contain;
}

.plist-item__body {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.plist-item__sku {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  font-family: 'Courier New', monospace;
  letter-spacing: 0.04em;
  color: var(--color-primary);
  background: rgba(0, 102, 204, 0.08);
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 8px;
  width: fit-content;
}

.plist-item__title {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 10px;
}

.plist-item__title a {
  color: var(--color-dark);
  transition: var(--transition);
}

.plist-item__title a:hover {
  color: var(--color-primary);
}

.plist-item__desc {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 14px;
  flex: 1;
}

.plist-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.plist-item__tags span {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 3px 10px;
  border-radius: 100px;
}

.plist-item__link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  transition: var(--transition);
  width: fit-content;
}

.plist-item__link:hover {
  color: var(--color-primary-dark);
}

/* Sidebar */
.plist-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: calc(var(--header-h) + 24px);
}

.sidebar-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.sidebar-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 16px;
}

.sidebar-card--highlight {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-3) 100%);
  border-color: transparent;
  color: var(--color-white);
}

.sidebar-card--highlight h3 {
  color: var(--color-white);
}

.sidebar-card--highlight p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.55;
  margin-bottom: 16px;
}

.sidebar-nav li {
  border-bottom: 1px solid var(--color-border);
}

.sidebar-nav li:last-child {
  border-bottom: none;
}

.sidebar-nav a {
  display: block;
  padding: 10px 0;
  font-size: 14px;
  color: var(--color-text-muted);
  transition: var(--transition);
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
  color: var(--color-primary);
  font-weight: 500;
}

.sidebar-contact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.sidebar-contact a {
  font-size: 14px;
  color: var(--color-accent-light);
  font-weight: 500;
}

.sidebar-specs div {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 13px;
}

.sidebar-specs div:last-child {
  border-bottom: none;
}

.sidebar-specs dt {
  color: var(--color-text-muted);
  font-weight: 400;
}

.sidebar-specs dd {
  color: var(--color-dark);
  font-weight: 600;
}

/* ---- About Page ---- */
.section--about-page {
  padding: 64px 0 80px;
  background: var(--color-bg);
}

.about-page-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}

.about-page-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: calc(var(--header-h) + 24px);
}

.about-highlights {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

.about-highlight {
  padding: 20px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-align: center;
}

.about-highlight strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 4px;
}

.about-highlight span {
  font-size: 12px;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.about-content-block {
  margin-bottom: 40px;
}

.about-content-block h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.about-content-block p {
  font-size: 16px;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: 14px;
}

.about-content-block a {
  color: var(--color-primary);
  font-weight: 500;
}

.about-content-block a:hover {
  text-decoration: underline;
}

.about-content-block strong {
  color: var(--color-text);
  font-weight: 600;
}

.about-feature-list {
  margin-top: 12px;
}

.about-feature-list li {
  font-size: 15px;
  color: var(--color-text);
  padding: 8px 0 8px 28px;
  position: relative;
  line-height: 1.5;
}

.about-feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.about-facilities h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 20px;
}

.about-facilities__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.about-facility-card {
  margin: 0;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.about-facility-card img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.about-facility-card figcaption {
  padding: 14px 18px;
  font-size: 13px;
  color: var(--color-text-muted);
  text-align: center;
  background: var(--color-white);
}

/* ---- Applications Page ---- */
.section--app-overview {
  padding: 48px 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.app-overview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.app-overview-item {
  text-align: center;
  padding: 24px 16px;
}

.app-overview-item img {
  max-height: 64px;
  width: auto;
  margin: 0 auto 16px;
  object-fit: contain;
}

.app-overview-item h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 6px;
}

.app-overview-item p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.section--app-cases {
  padding: 64px 0 80px;
  background: var(--color-bg);
}

.app-cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.app-case-card {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-decoration: none !important;
  color: inherit !important;
}

.app-case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 102, 204, 0.25);
}

.app-case-card__image {
  height: 200px;
  overflow: hidden;
  background: var(--color-dark);
}

.app-case-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.app-case-card:hover .app-case-card__image img {
  transform: scale(1.06);
}

.app-case-card__body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.app-case-card__tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  background: rgba(0, 102, 204, 0.08);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
  width: fit-content;
}

.app-case-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-dark);
  line-height: 1.45;
  margin-bottom: 16px;
  flex: 1;
}

.app-case-card__link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  transition: var(--transition);
}

.app-case-card:hover .app-case-card__link {
  color: var(--color-primary-dark);
}

/* ---- Application Detail Page ---- */
.section--app-detail {
  padding: 0 0 64px;
  background: var(--color-bg);
}

.app-detail-header {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(340px, 420px);
  gap: 32px;
  padding: 32px 0 40px;
  align-items: stretch;
}

.app-detail-header__media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-dark);
  border: 1px solid var(--color-border);
  min-height: 280px;
}

.app-detail-header__media img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  display: block;
}

.app-detail-header__info {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.app-detail-header__info > .btn {
  margin-top: auto;
}

.app-detail-header__category {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  background: rgba(0, 102, 204, 0.08);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 14px;
  width: fit-content;
}

.app-detail-header__info h1 {
  font-size: clamp(22px, 2.2vw, 28px);
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.35;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.app-detail-header__lead {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.app-detail-meta {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.app-detail-meta__row {
  display: flex;
  gap: 12px;
  font-size: 14px;
}

.app-detail-meta__label {
  flex-shrink: 0;
  width: 110px;
  font-weight: 600;
  color: var(--color-dark);
}

.app-detail-meta__value {
  color: var(--color-text-muted);
}

.app-detail-meta__value a {
  color: var(--color-primary);
  font-weight: 500;
}

.app-detail-meta__value a:hover {
  text-decoration: underline;
}

.app-detail-contact {
  padding: 16px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 20px;
}

.app-detail-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}

.app-detail-content {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  box-shadow: var(--shadow);
}

.app-detail-content h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-dark);
  margin: 32px 0 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
}

.app-detail-content h2:first-child {
  margin-top: 0;
}

.app-detail-content p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.75;
  margin-bottom: 16px;
}

.app-detail-content ul,
.app-detail-content ol {
  margin: 0 0 20px 20px;
}

.app-detail-content li {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.65;
  margin-bottom: 8px;
}

.app-detail-figure {
  margin: 24px 0 32px;
  text-align: center;
}

.app-detail-figure img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.app-detail-figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.app-detail-benefits {
  list-style: none;
  margin: 0 0 24px !important;
  padding: 0;
  display: grid;
  gap: 12px;
}

.app-detail-benefits li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0;
  padding: 14px 16px;
  background: var(--color-bg);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.app-detail-benefits li::before {
  content: '✓';
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 102, 204, 0.1);
  color: var(--color-primary);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
}

.app-detail-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: calc(var(--header-h) + 24px);
}

.app-detail-product-card {
  display: block;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  text-decoration: none !important;
  color: inherit !important;
  transition: var(--transition);
}

.app-detail-product-card:hover {
  border-color: rgba(0, 102, 204, 0.3);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.app-detail-product-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  background: var(--color-bg);
}

.app-detail-product-card__body {
  padding: 16px 18px 18px;
}

.app-detail-product-card__label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
  margin-bottom: 6px;
}

.app-detail-product-card__body h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-dark);
  line-height: 1.4;
  margin-bottom: 8px;
}

.app-detail-product-card__link {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
}

.section--app-related {
  padding: 0 0 80px;
  background: var(--color-bg);
}

.app-detail-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ---- Product Detail Page ---- */
.section--product-detail {
  padding: 0 0 64px;
  background: var(--color-bg);
}

.product-detail-breadcrumb {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: calc(var(--header-h) + 14px) 0 14px;
}

.product-detail-breadcrumb .breadcrumb {
  margin-bottom: 0;
  font-size: 13px;
}

.product-detail-breadcrumb .breadcrumb a {
  color: var(--color-text-muted);
}

.product-detail-breadcrumb .breadcrumb a:hover {
  color: var(--color-primary);
}

.product-detail-breadcrumb .breadcrumb__sep {
  color: var(--color-text-light);
}

.product-detail-breadcrumb .breadcrumb__current {
  color: var(--color-text);
  font-weight: 500;
}

.product-detail-header {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(340px, 400px);
  gap: 32px;
  padding: 32px 0 40px;
  align-items: stretch;
}

.product-detail-header__gallery {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
}

.product-detail-header__media {
  width: 100%;
  max-width: 720px;
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f8fafc;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.product-detail-header__gallery img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.product-detail-header__info {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.product-detail-header__info > .btn {
  margin-top: auto;
}

.product-detail-header__info h1 {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.35;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.product-detail-header__summary {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.product-detail-meta {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.product-detail-meta__row {
  display: flex;
  gap: 12px;
  font-size: 14px;
}

.product-detail-meta__label {
  flex-shrink: 0;
  width: 100px;
  font-weight: 600;
  color: var(--color-dark);
}

.product-detail-meta__value {
  color: var(--color-text-muted);
}

.product-detail-meta__sku {
  font-family: 'Courier New', monospace;
  font-weight: 700;
  color: var(--color-primary);
  font-size: 15px;
}

.product-detail-meta__row:has(.product-detail-tags) {
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}

.product-detail-meta__row:has(.product-detail-tags) .product-detail-meta__label {
  width: auto;
  font-size: 12px;
  color: var(--color-text-light);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.product-detail-meta__row:has(.product-detail-meta__value + .product-detail-meta__value) {
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

.product-detail-meta__row:has(.product-detail-meta__value + .product-detail-meta__value) .product-detail-meta__label {
  width: auto;
}

.product-detail-meta__row:has(.product-detail-meta__value + .product-detail-meta__value) .product-detail-meta__value {
  display: inline;
}

.product-detail-meta__row:has(.product-detail-meta__value + .product-detail-meta__value) .product-detail-meta__value + .product-detail-meta__value::before {
  content: '·';
  margin: 0 8px;
  color: var(--color-text-light);
}

.product-detail-tags {
  display: block;
  line-height: 1.55;
  width: 100%;
}

.product-detail-tags a {
  display: inline;
  font-size: 12px;
  font-weight: 400;
  color: var(--color-text-muted);
  background: transparent;
  padding: 0;
  border-radius: 0;
  transition: var(--transition);
}

.product-detail-tags a + a::before {
  content: '·';
  margin: 0 6px;
  color: var(--color-text-light);
  font-weight: 400;
}

.product-detail-tags a:hover {
  color: var(--color-primary);
  background: transparent;
  text-decoration: underline;
}

.product-detail-tags.is-collapsed .product-detail-tags__extra {
  display: none;
}

.product-detail-tags__toggle {
  display: inline;
  border: none;
  background: none;
  font: inherit;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-primary);
  cursor: pointer;
  padding: 0;
  margin-left: 2px;
  transition: var(--transition);
}

.product-detail-tags__toggle::before {
  content: '·';
  margin: 0 6px;
  color: var(--color-text-light);
  font-weight: 400;
}

.product-detail-tags__toggle:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.product-detail-contact {
  padding: 16px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 20px;
}

.product-detail-contact__person {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.product-detail-contact__person img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.product-detail-contact__links {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.product-detail-contact__links a {
  color: var(--color-primary);
  font-weight: 500;
}

.product-detail-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}

.product-detail-quick-specs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.product-detail-quick-specs__item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}

.product-detail-quick-specs__item strong {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.product-detail-quick-specs__item span {
  font-size: 12px;
  color: var(--color-text-muted);
}

.product-detail-content {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  box-shadow: var(--shadow);
}

.product-detail-content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-dark);
  margin: 36px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
}

.product-detail-content h3:first-child {
  margin-top: 0;
}

.product-detail-content p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: 14px;
}

.product-detail-content ol,
.product-detail-content ul {
  margin: 12px 0 20px 20px;
}

.product-detail-content li {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.65;
  margin-bottom: 6px;
}

.product-detail-content img {
  max-width: 100%;
  height: auto;
  margin: 16px 0;
  border-radius: var(--radius);
}

.product-detail-content .spec-table-wrap {
  overflow-x: auto;
  margin: 16px 0 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.product-detail-content table,
.fswtable table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.product-detail-content table td,
.product-detail-content table th,
.fswtable table td,
.fswtable table th {
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
  line-height: 1.5;
}

.product-detail-content table tr:first-child td,
.fswtable table tr:first-child td {
  background: var(--color-dark);
  color: var(--color-white);
  font-weight: 600;
}

.product-detail-content table tr:nth-child(even) td,
.fswtable table tr:nth-child(even) td {
  background: var(--color-bg);
}

.product-detail-dimensions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 20px 0;
}

.product-detail-dimensions figure {
  margin: 0;
  text-align: center;
}

.product-detail-dimensions img {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 8px;
}

.product-detail-dimensions figcaption {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-dark);
}

.product-detail-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: calc(var(--header-h) + 24px);
}

.inquiry-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.inquiry-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.inquiry-form input,
.inquiry-form textarea {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font);
  font-size: 14px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: var(--transition);
}

.inquiry-form input:focus,
.inquiry-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.inquiry-form textarea {
  min-height: 120px;
  resize: vertical;
}

.section--related-products {
  padding: 64px 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
}

.related-products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.related-product-card {
  display: block;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  text-decoration: none !important;
  color: inherit !important;
}

.related-product-card:hover {
  border-color: rgba(0, 102, 204, 0.3);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.related-product-card img {
  width: 100%;
  height: 120px;
  object-fit: contain;
  padding: 12px;
  background: var(--color-white);
}

.related-product-card span {
  display: block;
  padding: 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-dark);
  line-height: 1.4;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .plist-layout {
    grid-template-columns: 1fr;
  }

  .plist-sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .cta-box {
    flex-direction: column;
    text-align: center;
  }

  .cta-box__content p {
    max-width: none;
  }
  .product-grid,
  .product-grid--featured {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .about-page-layout {
    grid-template-columns: 1fr;
  }

  .about-page-sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .product-detail-header,
  .product-detail-layout,
  .app-detail-header,
  .app-detail-layout {
    grid-template-columns: 1fr;
  }

  .app-detail-header {
    gap: 24px;
    padding: 24px 0 32px;
  }

  .app-detail-sidebar {
    position: static;
  }

  .app-detail-content {
    padding: 28px 24px;
  }

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

  .product-detail-header {
    gap: 24px;
    padding: 24px 0 32px;
  }

  .product-detail-header__media {
    max-width: none;
  }

  .product-detail-sidebar {
    position: static;
  }

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

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

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

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 24px;
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition);
    box-shadow: var(--shadow);
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
  }

  .nav__link {
    padding: 12px 16px;
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .header__cta {
    display: none;
  }

  .hero__title {
    font-size: 32px;
  }

  .hero__subtitle {
    font-size: 16px;
  }

  .product-grid,
  .product-grid--featured,
  .product-grid--catalog,
  .models-grid,
  .advantage-grid,
  .app-grid {
    grid-template-columns: 1fr;
  }

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

  .cta-box {
    padding: 32px 24px;
  }

  .plist-item {
    grid-template-columns: 1fr;
  }

  .plist-item__image {
    height: 180px;
  }

  .plist-sidebar {
    grid-template-columns: 1fr;
  }

  .plist-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .plist-select {
    width: 100%;
    min-width: 0;
  }

  .plist-customize-btn {
    width: 100%;
    text-align: center;
  }

  .about-highlights,
  .about-facilities__grid,
  .about-page-sidebar,
  .app-overview-grid,
  .app-cases-grid,
  .app-detail-related-grid,
  .product-detail-quick-specs,
  .product-detail-dimensions,
  .related-products-grid {
    grid-template-columns: 1fr;
  }

  .inquiry-form__row {
    grid-template-columns: 1fr;
  }

  .product-detail-content {
    padding: 24px 20px;
  }

  .section {
    padding: 64px 0;
  }

  .footer__links {
    margin-left: 0;
  }
}