/* ===========================
   J.D. Polardio - Industrial B2B Style
   Color: Black/White/Gray
   =========================== */

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

:root {
  --color-black: #1a1a1a;
  --color-dark: #2c2c2c;
  --color-gray-900: #333333;
  --color-gray-700: #555555;
  --color-gray-500: #888888;
  --color-gray-300: #cccccc;
  --color-gray-100: #f5f5f5;
  --color-white: #ffffff;
  --color-accent: #c9a961; /* Gold accent for premium feel */
  --color-red: #c0392b; /* For CTAs */
  --font-heading: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --transition: all 0.2s ease;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.12);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.15);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-gray-900);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-black);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============= TOP BAR ============= */
.top-bar {
  background: var(--color-black);
  color: var(--color-white);
  padding: 8px 0;
  font-size: 13px;
}

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

.top-bar-info {
  display: flex;
  gap: 24px;
}

.top-bar-info span {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--color-gray-300);
}

.top-bar-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-switcher {
  background: transparent;
  color: var(--color-white);
  border: 1px solid var(--color-gray-700);
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
  border-radius: 2px;
}

.lang-switcher:hover {
  border-color: var(--color-accent);
}

/* ============= HEADER / NAV ============= */
.header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-300);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--color-black);
}

.logo-mark {
  width: 36px;
  height: 36px;
  background: var(--color-black);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  font-weight: 800;
}

.nav {
  display: flex;
  gap: 36px;
  align-items: center;
}

.nav a {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-gray-900);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
  padding: 6px 0;
}

.nav a:hover,
.nav a.active {
  color: var(--color-black);
}

.nav a.active::after {
  content: '';
  position: absolute;
  bottom: -22px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-black);
}

.nav-cta {
  background: var(--color-black);
  color: var(--color-white) !important;
  padding: 10px 22px !important;
  border-radius: 2px;
}

.nav-cta:hover {
  background: var(--color-accent);
}

.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  font-size: 24px;
  cursor: pointer;
  padding: 6px;
}

/* ============= BUTTONS ============= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: 2px;
  transition: var(--transition);
}

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

.btn-primary:hover {
  background: transparent;
  color: var(--color-black);
}

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

.btn-outline:hover {
  background: var(--color-white);
  color: var(--color-black);
}

.btn-dark-outline {
  background: transparent;
  color: var(--color-black);
  border-color: var(--color-black);
}

.btn-dark-outline:hover {
  background: var(--color-black);
  color: var(--color-white);
}

/* ============= HERO ============= */
.hero {
  position: relative;
  overflow: hidden;
  background: #1a1a1a;
  color: var(--color-white);
  padding: 100px 0;
  text-align: center;
}

.hero-banners {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.hero-banners .banner-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
}
.hero-banners .banner-slide.active {
  opacity: 1;
}
.hero-banners .banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.7) 100%);
}

.hero-video-wrap {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

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

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.85) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero .subtitle {
  font-size: 18px;
  color: var(--color-gray-300);
  max-width: 760px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 60px auto 0;
  padding-top: 50px;
  border-top: 1px solid rgba(255,255,255,0.15);
}

.hero-stat-num {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--color-accent);
}

.hero-stat-label {
  font-size: 13px;
  color: var(--color-gray-300);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 6px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============= SECTIONS ============= */
.section {
  padding: 90px 0;
}

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

.section-dark h2 {
  color: var(--color-white);
}

.section-gray {
  background: var(--color-gray-100);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-header p {
  color: var(--color-gray-700);
  max-width: 700px;
  margin: 0 auto;
  font-size: 17px;
}

.section-dark .section-header p {
  color: var(--color-gray-300);
}

/* ============= FEATURES ============= */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

/* ============= CERTIFICATION CARDS ============= */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.cert-card {
  background: var(--color-white);
  border-radius: 12px;
  padding: 36px 28px;
  text-align: center;
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.cert-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #c9a961, #e8d5a3);
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

.cert-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.1);
}

.cert-card:hover::before {
  transform: scaleX(1);
}

.cert-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(201, 169, 97, 0.1);
  border-radius: 50%;
}

.cert-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-black);
}

.cert-card p {
  font-size: 14px;
  color: #666;
  margin: 0;
}

@media (max-width: 1024px) {
  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .cert-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .cert-card {
    padding: 28px 24px;
  }
  
  .cert-icon {
    width: 64px;
    height: 64px;
  }
}

/* ============= CASES GRID ============= */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card {
  background: var(--color-white);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.case-image {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}

.case-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--color-accent);
  color: var(--color-black);
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  z-index: 1;
}

.case-card:hover .case-image > div {
  transform: scale(1.05);
}

.case-image > div {
  transition: transform 0.4s ease;
}

.case-info {
  padding: 24px;
}

.case-location {
  display: inline-block;
  font-size: 12px;
  color: #888;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.case-info h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-black);
}

.case-info p {
  font-size: 14px;
  color: #666;
  line-height: 1.7;
  margin-bottom: 16px;
}

.case-link {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: letter-spacing 0.3s ease;
}

.case-link:hover {
  letter-spacing: 1px;
}

@media (max-width: 1024px) {
  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .cases-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .case-info {
    padding: 20px;
  }
  
  .case-info h3 {
    font-size: 16px;
  }
}

/* ============= FACTORY GALLERY ============= */
.factory-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}

.factory-card {
  background: var(--color-white);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.factory-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.12);
}

.factory-image {
  aspect-ratio: 4/3;
  position: relative;
  overflow: hidden;
}

.factory-image::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #c9a961, #e8d5a3);
}

.factory-card:hover .factory-image::after {
  height: 6px;
}

.factory-info {
  padding: 20px 24px 24px;
}

.factory-info h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-black);
}

.factory-info p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 1024px) {
  .factory-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .factory-gallery {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

/* ============= ADVANTAGES GRID (4-column brand cards) ============= */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.advantage-card {
  background: var(--color-white);
  padding: 36px 28px 32px;
  text-align: center;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #c9a961, #e8d5a3);
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

.advantage-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
  border-color: transparent;
}

.advantage-card:hover::before {
  transform: scaleX(1);
}

.advantage-icon {
  width: 100px;
  height: 100px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.advantage-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.4s ease;
}

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

.advantage-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}

.advantage-card p {
  color: #666;
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

/* Responsive */
@media (max-width: 1024px) {
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .advantage-card {
    padding: 28px 24px;
  }
  
  .advantage-icon {
    width: 80px;
    height: 80px;
  }
}

@media (max-width: 640px) {
  .advantages-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .advantage-card {
    padding: 24px 20px;
  }
  
  .advantage-icon {
    width: 72px;
    height: 72px;
    margin-bottom: 18px;
  }
  
  .advantage-card h3 {
    font-size: 16px;
  }
  
  .advantage-card p {
    font-size: 13px;
  }
}

/* Legacy feature-card (kept for compatibility) */
.feature-card {
  background: var(--color-white);
  padding: 40px 28px;
  text-align: center;
  border: 1px solid var(--color-gray-300);
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--color-black);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: var(--color-black);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
}

.feature-card h3 {
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--color-gray-700);
  font-size: 15px;
}

/* ============= CATEGORIES ============= */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  justify-content: center;
}

.category-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-300);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.category-image {
  height: 220px;
  background: var(--color-gray-100);
  position: relative;
  overflow: hidden;
}

.category-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.category-card:hover .category-image img {
  transform: scale(1.05);
}

.category-info {
  padding: 22px;
}

.category-info h3 {
  margin-bottom: 6px;
  font-size: 18px;
}

.category-info p {
  color: var(--color-gray-700);
  font-size: 14px;
  margin-bottom: 14px;
}

.category-link {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-black);
  border-bottom: 2px solid var(--color-black);
  padding-bottom: 2px;
}

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

.product-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-300);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  border-color: var(--color-black);
  box-shadow: var(--shadow-md);
}

.product-image {
  aspect-ratio: 1;
  background: var(--color-gray-100);
  overflow: hidden;
  position: relative;
}

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

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--color-black);
  color: var(--color-white);
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.product-info {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-category {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-gray-500);
  margin-bottom: 6px;
}

.product-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 8px;
  flex: 1;
}

.product-meta {
  font-size: 13px;
  color: var(--color-gray-700);
  margin-bottom: 14px;
}

.product-actions {
  display: flex;
  gap: 8px;
}

.product-btn {
  flex: 1;
  padding: 9px 12px;
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 1px solid var(--color-black);
  cursor: pointer;
  transition: var(--transition);
}

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

.product-btn-primary:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.product-btn-outline {
  background: transparent;
  color: var(--color-black);
}

.product-btn-outline:hover {
  background: var(--color-black);
  color: var(--color-white);
}

/* ============= PAGE BANNER ============= */
.page-banner {
  background: linear-gradient(rgba(0,0,0,0.8), rgba(0,0,0,0.9)),
              url('../images/banner-bg.png') center/cover;
  background-color: var(--color-dark);
  color: var(--color-white);
  padding: 70px 0 60px;
  text-align: center;
}

.page-banner h1 {
  color: var(--color-white);
  margin-bottom: 12px;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-gray-300);
}

.breadcrumb a {
  color: var(--color-gray-300);
}

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

.breadcrumb .sep {
  color: var(--color-gray-500);
}

/* ============= TWO COL ============= */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.two-col img {
  width: 100%;
}

.two-col h2 {
  margin-bottom: 20px;
}

.two-col p {
  color: var(--color-gray-700);
  margin-bottom: 16px;
}

/* ============= STATS BAND ============= */
.stats-band {
  background: var(--color-black);
  color: var(--color-white);
  padding: 60px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-num {
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -1px;
}

.stat-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-gray-300);
  margin-top: 8px;
}

/* ============= CTA SECTION ============= */
.cta-section {
  background: var(--color-black);
  color: var(--color-white);
  padding: 80px 0;
  text-align: center;
}

.cta-section h2 {
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta-section p {
  color: var(--color-gray-300);
  font-size: 18px;
  max-width: 700px;
  margin: 0 auto 32px;
}

/* ============= FORMS ============= */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-gray-900);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  font-size: 15px;
  font-family: var(--font-body);
  border: 1px solid var(--color-gray-300);
  background: var(--color-white);
  border-radius: 2px;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-black);
  box-shadow: 0 0 0 3px rgba(0,0,0,0.06);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ============= FOOTER ============= */
.footer {
  background: var(--color-black);
  color: var(--color-gray-300);
  padding: 70px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 50px;
  margin-bottom: 50px;
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  color: var(--color-gray-300);
  font-size: 14px;
}

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

.footer-about p {
  font-size: 14px;
  margin-bottom: 16px;
  line-height: 1.7;
}

.social-links {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.social-links a {
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-gray-700);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 14px;
}

.social-links a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-black);
}

.footer-bottom {
  border-top: 1px solid var(--color-gray-900);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: var(--color-gray-500);
}

/* ============= FAQ ============= */
.faq-search {
  max-width: 880px;
  margin: 0 auto 32px;
}

.faq-search input {
  width: 100%;
  padding: 16px 20px;
  border: 2px solid #e0e0e0;
  border-radius: 12px;
  font-size: 16px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-search input:focus {
  outline: none;
  border-color: #c9a961;
  box-shadow: 0 0 0 4px rgba(201, 169, 97, 0.1);
}

.faq-list {
  max-width: 880px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid rgba(0, 0, 0, 0.08);
  margin-bottom: 12px;
  background: var(--color-white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: all 0.3s ease;
}

.faq-item:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.faq-item.hidden {
  display: none;
}

.faq-question {
  padding: 20px 24px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 16px;
  transition: color 0.3s ease;
}

.faq-question:hover {
  color: #c9a961;
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  color: #666;
  line-height: 1.7;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
  padding: 0 24px 22px;
  max-height: 500px;
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
  color: #c9a961;
}

.faq-question::after {
  content: '+';
  font-size: 24px;
  font-weight: 300;
  transition: transform 0.3s ease, color 0.3s ease;
  color: #999;
}

/* ============= LEGAL PAGES ============= */
.legal-content {
  max-width: 880px;
  margin: 0 auto;
}

.legal-content h2 {
  margin-top: 40px;
  margin-bottom: 16px;
  font-size: 24px;
}

.legal-content h3 {
  margin-top: 28px;
  margin-bottom: 10px;
}

.legal-content p,
.legal-content ul {
  color: var(--color-gray-700);
  margin-bottom: 16px;
  line-height: 1.8;
}

.legal-content ul {
  padding-left: 24px;
}

/* ============= INQUIRY STEPS ============= */
.steps {
  display: flex;
  justify-content: space-between;
  margin-bottom: 50px;
  position: relative;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.steps::before {
  content: '';
  position: absolute;
  top: 22px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: var(--color-gray-300);
  z-index: 0;
}

.step {
  position: relative;
  z-index: 1;
  text-align: center;
  flex: 1;
}

.step-num {
  width: 44px;
  height: 44px;
  background: var(--color-white);
  border: 2px solid var(--color-gray-300);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto 8px;
}

.step.active .step-num {
  background: var(--color-black);
  border-color: var(--color-black);
  color: var(--color-white);
}

.step-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-gray-700);
}

/* ============= RESPONSIVE ============= */
@media (max-width: 1024px) {
  .features-grid,
  .categories-grid,
  .product-grid,
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .two-col {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .top-bar-info {
    display: none;
  }

  .nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    gap: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    border-top: 1px solid var(--color-gray-300);
    box-shadow: var(--shadow-md);
  }

  .nav.active {
    max-height: 600px;
  }

  .nav a {
    width: 100%;
    padding: 16px 24px !important;
    border-bottom: 1px solid var(--color-gray-100);
  }

  .nav a.active::after {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .section {
    padding: 60px 0;
  }

  .hero {
    padding: 70px 0;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .features-grid,
  .categories-grid,
  .product-grid,
  .stats-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

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

  .product-grid .product-card {
    font-size: 14px;
  }

  .steps::before {
    left: 14%;
    right: 14%;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

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

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}

/* ============= UTILITIES ============= */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.text-accent { color: var(--color-accent); }

/* Lazy loading placeholder */
img[loading="lazy"] {
  background: var(--color-gray-100);
}

/* ============================================================
   POLISH LAYER v2 - 美化升级
   ============================================================ */

/* ----- 扩展设计令牌 ----- */
:root {
  /* 字体大小节奏 (modular scale 1.25) */
  --fs-xs: 0.75rem;     /* 12 */
  --fs-sm: 0.875rem;    /* 14 */
  --fs-base: 1rem;      /* 16 */
  --fs-md: 1.125rem;    /* 18 */
  --fs-lg: 1.25rem;     /* 20 */
  --fs-xl: 1.5rem;      /* 24 */
  --fs-2xl: 1.875rem;   /* 30 */
  --fs-3xl: 2.25rem;    /* 36 */
  --fs-4xl: 3rem;       /* 48 */
  --fs-5xl: 3.75rem;    /* 60 */
  --fs-6xl: 4.5rem;     /* 72 */

  /* 间距 (4px base) */
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.25rem;
  --sp-6: 1.5rem;
  --sp-8: 2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;
  --sp-32: 8rem;

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-pill: 999px;

  /* 阴影层级 */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 24px rgba(0,0,0,0.10), 0 4px 8px rgba(0,0,0,0.04);
  --shadow-xl: 0 24px 48px rgba(0,0,0,0.12), 0 8px 16px rgba(0,0,0,0.04);
  --shadow-glow: 0 0 0 3px rgba(201, 169, 97, 0.25);
  --shadow-accent: 0 6px 20px rgba(201, 169, 97, 0.35);

  /* 动画曲线 */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 150ms;
  --duration: 250ms;
  --duration-slow: 400ms;

  /* 渐变 */
  --grad-accent: linear-gradient(135deg, #c9a961 0%, #b8943f 100%);
  --grad-dark: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 100%);
  --grad-hero: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.7) 100%);
}

/* ----- 全局美化 ----- */

/* 平滑滚动 */
html { scroll-behavior: smooth; scroll-padding-top: 80px; }

/* 文字选区 */
::selection { background: var(--color-accent); color: #1a1a1a; }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--color-gray-100); }
::-webkit-scrollbar-thumb { background: var(--color-gray-500); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-gray-700); }

/* 链接 hover */
a { transition: color var(--duration) var(--ease-out), opacity var(--duration) var(--ease-out); }

/* 强焦点环 */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* 减弱动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ----- 排版节奏 ----- */
h1, h2, h3, h4, h5, h6 {
  letter-spacing: -0.02em;
  margin-top: 0;
}
h1 { font-size: clamp(2rem, 4vw, var(--fs-5xl)); line-height: 1.15; }
h2 { font-size: clamp(1.625rem, 3.2vw, var(--fs-4xl)); line-height: 1.2; }
h3 { font-size: clamp(1.25rem, 2.4vw, var(--fs-2xl)); line-height: 1.3; }
h4 { font-size: var(--fs-xl); line-height: 1.35; }

p { margin: 0 0 var(--sp-4); }
p:last-child { margin-bottom: 0; }

ul, ol { margin: 0 0 var(--sp-4); padding-left: 1.5rem; }
li { margin-bottom: var(--sp-2); }
li:last-child { margin-bottom: 0; }

a { color: var(--color-accent); text-underline-offset: 3px; }
a:hover { color: #b8943f; }

strong { font-weight: 700; }
em { font-style: italic; }

code {
  background: var(--color-gray-100);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.9em;
  color: var(--color-gray-900);
}

blockquote {
  border-left: 4px solid var(--color-accent);
  padding: var(--sp-4) var(--sp-6);
  margin: var(--sp-6) 0;
  background: linear-gradient(90deg, rgba(201, 169, 97, 0.06), transparent 80%);
  font-style: italic;
  color: var(--color-gray-700);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* ----- Section & container polish ----- */
.section { padding: var(--sp-20) 0; position: relative; }
.section + .section { border-top: 1px solid var(--color-gray-100); }
.section-header { margin-bottom: var(--sp-12); text-align: center; }
.section-header h2 { margin-bottom: var(--sp-3); }
.section-header p { color: var(--color-gray-700); font-size: var(--fs-md); max-width: 720px; margin: 0 auto; }
.section-eyebrow {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--sp-3);
  padding: 4px 10px;
  background: rgba(201, 169, 97, 0.08);
  border-radius: var(--radius-pill);
}

/* ----- Button polish ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: inherit;
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--duration) var(--ease-out);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.25) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.6s var(--ease-out);
}
.btn:hover::after { transform: translateX(100%); }

.btn-primary {
  background: var(--color-accent);
  color: var(--color-black);
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: #d4b572;
  border-color: #d4b572;
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.4);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

.btn-dark-outline {
  background: transparent;
  color: var(--color-black);
  border-color: var(--color-black);
}
.btn-dark-outline:hover {
  background: var(--color-black);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-gray-700);
  border-color: transparent;
}
.btn-ghost:hover {
  color: var(--color-accent);
  background: var(--color-gray-100);
}

.btn-sm { padding: 8px 16px; font-size: var(--fs-xs); }
.btn-lg { padding: 16px 32px; font-size: var(--fs-md); }
.btn-block { display: flex; width: 100%; }
.btn:disabled, .btn[disabled] { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* ----- Top bar / Header polish ----- */
.top-bar {
  background: linear-gradient(90deg, #1a1a1a 0%, #2c2c2c 100%);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: var(--fs-xs);
  letter-spacing: 0.02em;
}
.top-bar a { color: var(--color-gray-300); transition: color var(--duration); }
.top-bar a:hover { color: var(--color-accent); }
.top-bar-info span { display: inline-flex; align-items: center; gap: 6px; }

.header {
  background: rgba(255,255,255,0.95);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-gray-300);
  box-shadow: 0 1px 0 rgba(0,0,0,0.04);
  transition: box-shadow var(--duration);
}
.header-inner { padding: 16px 0; }

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--color-black);
  text-decoration: none;
  font-size: 18px;
}
.logo img { height: 36px; width: auto; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  position: relative;
  padding: 10px 14px;
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-gray-900);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease-out);
}
.nav a:hover { color: var(--color-accent); background: rgba(201, 169, 97, 0.06); }
.nav a.active { color: var(--color-accent); }
.nav a.active::after {
  content: '';
  position: absolute;
  left: 14px; right: 14px; bottom: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}
.nav-cta {
  margin-left: 12px;
  background: var(--color-black) !important;
  color: var(--color-white) !important;
  padding: 10px 18px !important;
  border-radius: var(--radius-sm) !important;
}
.nav-cta:hover { background: var(--color-accent) !important; color: var(--color-black) !important; }

/* ----- Hero polish ----- */
.hero {
  position: relative;
  min-height: 720px;
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--sp-24) 0;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-content {
  position: relative;
  z-index: 5;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: var(--sp-12) 0;
}
.hero h1 {
  font-size: clamp(2.25rem, 5.5vw, var(--fs-6xl));
  line-height: 1.05;
  margin: 0 0 var(--sp-5);
  font-weight: 800;
  letter-spacing: -0.025em;
  text-shadow: 0 2px 20px rgba(0,0,0,0.4);
}
.hero .subtitle {
  font-size: clamp(1rem, 1.6vw, var(--fs-lg));
  line-height: 1.6;
  max-width: 720px;
  margin: 0 auto var(--sp-8);
  color: rgba(255,255,255,0.85);
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-4);
  margin-top: var(--sp-12);
  padding-top: var(--sp-8);
  border-top: 1px solid rgba(255,255,255,0.15);
}
.hero-stat-num {
  font-size: clamp(1.75rem, 3vw, var(--fs-3xl));
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--sp-2);
  letter-spacing: -0.02em;
}
.hero-stat-label {
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  font-weight: 600;
}
.hero-cta {
  display: inline-flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
  justify-content: center;
}

/* ----- Card polish (unified) ----- */
.product-card,
.case-card,
.category-card,
.advantage-card,
.feature-card,
.cert-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration) var(--ease-out);
  border: 1px solid var(--color-gray-100);
  position: relative;
}
.product-card:hover,
.case-card:hover,
.category-card:hover,
.advantage-card:hover,
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.product-card img,
.case-image img,
.category-image img,
.advantage-icon img {
  transition: transform var(--duration-slow) var(--ease-out);
}
.product-card:hover .product-image img,
.case-card:hover .case-image img,
.category-card:hover .category-image img {
  transform: scale(1.08);
}

/* product card */
.product-image {
  position: relative;
  background: linear-gradient(135deg, #f8f8f8 0%, #ececec 100%);
  aspect-ratio: 1 / 1;
  overflow: hidden;
}
.product-info { padding: var(--sp-5); }
.product-category {
  display: inline-block;
  font-size: var(--fs-xs);
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--sp-2);
}
.product-name {
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: var(--sp-4);
  line-height: 1.3;
}
.product-actions {
  display: flex;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}
.product-btn {
  flex: 1;
  text-align: center;
  padding: 8px 12px;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--duration) var(--ease-out);
  border: 1.5px solid;
}
.product-btn-outline { background: transparent; color: var(--color-gray-700); border-color: var(--color-gray-300); }
.product-btn-outline:hover { color: var(--color-black); border-color: var(--color-black); background: var(--color-gray-100); }
.product-btn-primary { background: var(--color-accent); color: var(--color-black); border-color: var(--color-accent); }
.product-btn-primary:hover { background: #d4b572; border-color: #d4b572; }

/* case card */
.case-image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-gray-100);
}
.case-info { padding: var(--sp-5); }
.case-info h3 { font-size: var(--fs-md); margin-bottom: var(--sp-2); }
.case-info p { font-size: var(--fs-sm); color: var(--color-gray-700); line-height: 1.6; margin: 0; }
.case-badge {
  position: absolute;
  top: var(--sp-3); left: var(--sp-3);
  padding: 4px 10px;
  background: rgba(26,26,26,0.85);
  color: var(--color-accent);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  backdrop-filter: blur(4px);
  z-index: 2;
}
.case-location { font-size: var(--fs-xs); color: var(--color-gray-500); letter-spacing: 0.05em; text-transform: uppercase; font-weight: 600; }

/* category card */
.category-card {
  position: relative;
  display: block;
  text-decoration: none;
  color: inherit;
}
.category-image {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 100%);
  position: relative;
}
.category-image img { width: 100%; height: 100%; object-fit: cover; }
.category-image::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.4) 100%);
  opacity: 0.6;
  transition: opacity var(--duration);
}
.category-card:hover .category-image::after { opacity: 0.85; }
.category-info { padding: var(--sp-5); text-align: center; }
.category-info h3 { font-size: var(--fs-lg); margin-bottom: var(--sp-2); }
.category-info p { font-size: var(--fs-sm); color: var(--color-gray-700); margin: 0 0 var(--sp-3); }
.category-link {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  padding-bottom: 2px;
  border-bottom: 2px solid var(--color-accent);
  transition: gap var(--duration);
}
.category-card:hover .category-link { letter-spacing: 0.15em; }

/* advantage card */
.advantage-card {
  padding: var(--sp-8) var(--sp-6);
  text-align: center;
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
}
.advantage-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(201, 169, 97, 0.04) 0%, transparent 30%);
  opacity: 0;
  transition: opacity var(--duration);
  border-radius: var(--radius-lg);
}
.advantage-card:hover::before { opacity: 1; }
.advantage-icon {
  width: 64px; height: 64px;
  margin: 0 auto var(--sp-5);
  background: linear-gradient(135deg, rgba(201, 169, 97, 0.12), rgba(201, 169, 97, 0.04));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}
.advantage-icon img { width: 32px; height: 32px; }
.advantage-card h3 { font-size: var(--fs-md); margin-bottom: var(--sp-3); }
.advantage-card p { font-size: var(--fs-sm); color: var(--color-gray-700); line-height: 1.6; margin: 0; }

/* ----- Stats band polish ----- */
.stats-band {
  background: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 100%);
  color: var(--color-white);
  padding: var(--sp-16) 0;
  position: relative;
  overflow: hidden;
}
.stats-band::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 20% 50%, rgba(201, 169, 97, 0.08), transparent 60%);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-8);
  text-align: center;
  position: relative;
}
.stats-grid > div {
  padding: 0 var(--sp-2);
  border-right: 1px solid rgba(255,255,255,0.08);
}
.stats-grid > div:last-child { border-right: 0; }
.stat-num {
  font-size: clamp(2rem, 4vw, var(--fs-4xl));
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--sp-3);
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.7);
}

/* ----- Two column layouts ----- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-16);
  align-items: center;
}
.two-col h2 { margin-bottom: var(--sp-5); }
.two-col p { font-size: var(--fs-md); color: var(--color-gray-700); line-height: 1.7; margin-bottom: var(--sp-4); }

/* ----- CTA section polish ----- */
.cta-section {
  background: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 100%);
  color: var(--color-white);
  padding: var(--sp-20) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(201, 169, 97, 0.12), transparent 60%);
}
.cta-section h2 {
  color: var(--color-white);
  font-size: clamp(1.875rem, 4vw, var(--fs-4xl));
  margin-bottom: var(--sp-4);
  position: relative;
}
.cta-section p { color: rgba(255,255,255,0.8); max-width: 680px; margin: 0 auto var(--sp-8); position: relative; }
.cta-section .hero-cta { position: relative; }

/* ----- Form polish ----- */
.form-control, input[type="text"], input[type="email"], input[type="password"], input[type="url"], input[type="tel"], input[type="number"], input[type="search"], textarea, select {
  width: 100%;
  padding: 12px 14px;
  font-family: inherit;
  font-size: var(--fs-base);
  color: var(--color-gray-900);
  background: var(--color-white);
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease-out);
  -webkit-appearance: none;
}
.form-control:hover, input:hover, textarea:hover, select:hover {
  border-color: var(--color-gray-500);
}
.form-control:focus, input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: var(--shadow-glow);
}
.form-control::placeholder, input::placeholder, textarea::placeholder { color: var(--color-gray-500); }
textarea { min-height: 100px; resize: vertical; }
select { background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23c9a961%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E"); background-repeat: no-repeat; background-position: right 12px center; background-size: 10px; padding-right: 36px; }
.form-label, label { display: block; font-size: var(--fs-sm); font-weight: 600; color: var(--color-gray-900); margin-bottom: var(--sp-2); }
.form-group { margin-bottom: var(--sp-4); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4); margin-bottom: var(--sp-4); }
.form-hint { font-size: var(--fs-xs); color: var(--color-gray-500); margin-top: 4px; }
.form-error { font-size: var(--fs-xs); color: #c0392b; margin-top: 4px; }

/* ----- FAQ polish ----- */
.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-md);
  margin-bottom: var(--sp-3);
  overflow: hidden;
  transition: all var(--duration) var(--ease-out);
}
.faq-item:hover { border-color: var(--color-accent); box-shadow: var(--shadow-sm); }
.faq-item summary {
  padding: var(--sp-5) var(--sp-6);
  font-weight: 600;
  color: var(--color-gray-900);
  cursor: pointer;
  list-style: none;
  position: relative;
  font-size: var(--fs-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 24px;
  font-weight: 300;
  color: var(--color-accent);
  transition: transform var(--duration) var(--ease-out);
  flex-shrink: 0;
}
.faq-item[open] summary { color: var(--color-accent); }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-answer {
  padding: 0 var(--sp-6) var(--sp-5);
  color: var(--color-gray-700);
  line-height: 1.7;
  font-size: var(--fs-sm);
}

/* ----- Page banner (top hero) polish ----- */
.page-banner {
  background: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 100%);
  color: var(--color-white);
  padding: var(--sp-20) 0 var(--sp-16);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(201, 169, 97, 0.10), transparent 60%);
}
.page-banner h1 {
  color: var(--color-white);
  font-size: clamp(2.25rem, 5vw, var(--fs-5xl));
  margin: 0 0 var(--sp-3);
  position: relative;
}
.breadcrumb {
  position: relative;
  color: rgba(255,255,255,0.7);
  font-size: var(--fs-sm);
}
.breadcrumb a { color: var(--color-accent); text-decoration: none; }
.breadcrumb .sep { margin: 0 8px; color: var(--color-gray-500); }

/* ----- Footer polish ----- */
.footer {
  background: linear-gradient(180deg, #1a1a1a 0%, #0e0e0e 100%);
  color: rgba(255,255,255,0.7);
  padding: var(--sp-16) 0 var(--sp-6);
  position: relative;
  border-top: 3px solid var(--color-accent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--sp-12);
}
.footer-col h4 {
  color: var(--color-white);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: var(--sp-5);
  position: relative;
  padding-bottom: var(--sp-2);
}
.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 32px; height: 2px;
  background: var(--color-accent);
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: var(--sp-2); }
.footer-col a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: var(--fs-sm);
  transition: all var(--duration) var(--ease-out);
  display: inline-block;
  position: relative;
}
.footer-col a:hover {
  color: var(--color-accent);
  transform: translateX(3px);
}
.footer-about p { color: rgba(255,255,255,0.6); font-size: var(--fs-sm); line-height: 1.6; }
.footer-about img { height: 40px; margin-bottom: var(--sp-4); }
.social-links { display: flex; gap: var(--sp-2); margin-top: var(--sp-4); }
.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  color: rgba(255,255,255,0.8);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0;
  transition: all var(--duration) var(--ease-out);
}
.social-links a:hover {
  background: var(--color-accent);
  color: var(--color-black);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}
.footer-bottom {
  margin-top: var(--sp-12);
  padding-top: var(--sp-6);
  border-top: 1px solid rgba(255,255,255,0.08);
  text-align: center;
  color: rgba(255,255,255,0.5);
  font-size: var(--fs-xs);
  letter-spacing: 0.05em;
}

/* ----- Banner carousel polish ----- */
.hero-banners .banner-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.4s var(--ease-in-out);
  transform: scale(1.05);
}
.hero-banners .banner-slide.active {
  opacity: 1;
  transform: scale(1);
  transition: opacity 1.4s var(--ease-in-out), transform 6s linear;
}
.hero-banners .banner-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.7) 100%);
}

/* ----- Reveal animation ----- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ----- Skeleton loading ----- */
.skeleton {
  background: linear-gradient(90deg, #f5f5f5 0%, #ececec 50%, #f5f5f5 100%);
  background-size: 200% 100%;
  animation: skeleton 1.4s ease-in-out infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeleton {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ----- Empty state ----- */
.empty-state {
  text-align: center;
  padding: var(--sp-16) var(--sp-6);
  color: var(--color-gray-500);
}
.empty-state-icon { font-size: 48px; margin-bottom: var(--sp-4); opacity: 0.6; }
.empty-state-text { font-size: var(--fs-md); margin: 0; }

/* ----- Image hover utilities ----- */
.img-hover-zoom { overflow: hidden; }
.img-hover-zoom img { transition: transform var(--duration-slow) var(--ease-out); }
.img-hover-zoom:hover img { transform: scale(1.08); }

/* ----- Responsive polish ----- */
@media (max-width: 1024px) {
  .hero { min-height: 600px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--sp-8); }
  .two-col { grid-template-columns: 1fr; gap: var(--sp-8); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: var(--sp-6); }
  .stats-grid > div:nth-child(2) { border-right: 0; }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .section { padding: var(--sp-16) 0; }
  .hero { min-height: 540px; padding: var(--sp-16) 0; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: var(--sp-4); }
  .footer-grid { grid-template-columns: 1fr; }
  .menu-toggle { display: flex; }
  .nav {
    position: fixed;
    top: 70px; right: 0; left: auto;
    width: 280px;
    max-height: calc(100vh - 80px);
    background: var(--color-white);
    flex-direction: column !important;
    align-items: stretch;
    padding: var(--sp-4);
    transform: translateX(100%);
    transition: transform var(--duration) var(--ease-out);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    overflow-y: auto;
  }
  .nav.open { transform: translateX(0); }
  .nav > a { display: block !important; width: 100%; }
  .nav a { padding: 14px 16px; border-bottom: 1px solid var(--color-gray-100); }
  .nav a.active::after { display: none; }
  .nav-cta { margin: var(--sp-3) 0 0 0; text-align: center; }
  .two-col { grid-template-columns: 1fr; }
  .categories-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .categories-grid { grid-template-columns: 1fr; }
  .top-bar-info { flex-direction: column; gap: 4px; align-items: flex-start; }
}

/* Mobile menu toggle visibility helper */
@media (min-width: 769px) {
  .menu-toggle { display: none !important; }
}

/* Image rendering crispness */
img { image-rendering: -webkit-optimize-contrast; }

/* Selection animation for cards */
@keyframes pulse-accent {
  0%, 100% { box-shadow: 0 0 0 0 rgba(201, 169, 97, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(201, 169, 97, 0); }
}
.pulse-accent { animation: pulse-accent 2s var(--ease-in-out) infinite; }

/* Glassmorphism utility */
.glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Print styles */
@media print {
  .header, .footer, .top-bar, .hero-banners, .btn { display: none !important; }
  body { color: #000; background: #fff; }
  a[href]::after { content: ' (' attr(href) ')'; font-size: 0.8em; }
}

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-black);
  border: none;
  font-size: 22px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--duration) var(--ease-out);
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: #d4b572;
  transform: translateY(-4px);
}

/* Mobile menu toggle button (base styles; visibility controlled by media queries) */
.menu-toggle {
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  background: transparent;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  font-size: 20px;
  color: var(--color-black);
  cursor: pointer;
  transition: all var(--duration);
}
.menu-toggle:hover { background: var(--color-gray-100); }
/* Default (mobile-first): show toggle. Desktop hides it. */
.menu-toggle { display: flex; }
@media (min-width: 769px) {
  .menu-toggle { display: none; }
}

/* Body scroll lock when mobile menu open */
body.menu-open { overflow: hidden; }

/* Print: hide back to top */
@media print { .back-to-top { display: none !important; } }


/* ======================================================================
   PRODUCTS PAGE (v2 — B2B foreign-trade standard)
   ====================================================================== */

/* ===== Breadcrumb ===== */
.breadcrumb-bar {
  background: #fafafa;
  border-bottom: 1px solid #eaeaea;
  padding: 14px 0;
  font-size: 13px;
}
.breadcrumb { display: flex; align-items: center; gap: 8px; color: #888; }
.breadcrumb a { color: #888; text-decoration: none; transition: color .2s; }
.breadcrumb a:hover { color: #c9a961; }
.bc-sep { color: #ccc; }
.bc-current { color: #0a0a0a; font-weight: 600; }

/* ===== Hero ===== */
.product-hero {
  padding: 70px 0 60px;
  background: linear-gradient(180deg, #0a0a0a 0%, #181818 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.product-hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 85% 15%, rgba(201, 169, 97, 0.15), transparent 45%),
    radial-gradient(circle at 15% 85%, rgba(201, 169, 97, 0.06), transparent 45%);
  pointer-events: none;
}
.product-hero .hero-text, .product-hero .hero-stats-card { position: relative; z-index: 1; }
.hero-title { color: #fff; }
.hero-title::before {
  /* Subtle highlight behind title for readability */
  content: '';
  position: absolute;
  top: -10px; left: -20px; right: -20px; bottom: -10px;
  background: radial-gradient(ellipse, rgba(0,0,0,0.4), transparent 70%);
  z-index: -1;
}
.hero-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 60px; align-items: center; position: relative; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 600; letter-spacing: 0.2em;
  color: #c9a961; text-transform: uppercase; margin-bottom: 20px;
}
.hero-eyebrow .dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: #c9a961; box-shadow: 0 0 0 4px rgba(201, 169, 97, 0.2);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800; line-height: 1.1; margin: 0 0 20px;
  letter-spacing: -0.02em;
}
.hero-title em { font-style: normal; color: #c9a961; }
.hero-subtitle {
  font-size: 16px; line-height: 1.7; color: #ccc; max-width: 540px; margin: 0 0 32px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 32px; }
.btn-primary-lg, .btn-ghost-lg, .btn-primary-xl, .btn-ghost-xl, .btn-primary-block, .btn-secondary-sm, .btn-primary-sm {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  text-decoration: none; font-weight: 600; border-radius: 4px; transition: all .2s;
  cursor: pointer; border: 2px solid transparent; font-family: inherit;
}
.btn-primary-lg { padding: 14px 24px; font-size: 14px; background: #c9a961; color: #0a0a0a; }
.btn-primary-lg:hover { background: #b8954f; transform: translateY(-1px); }
.btn-ghost-lg { padding: 14px 24px; font-size: 14px; background: transparent; color: #fff; border-color: rgba(255,255,255,0.3); }
.btn-ghost-lg:hover { border-color: #fff; transform: translateY(-1px); }
.btn-primary-xl { padding: 18px 36px; font-size: 15px; background: #c9a961; color: #0a0a0a; }
.btn-primary-xl:hover { background: #b8954f; transform: translateY(-1px); }
.btn-ghost-xl { padding: 18px 36px; font-size: 15px; background: transparent; color: #0a0a0a; border-color: #0a0a0a; }
.btn-ghost-xl:hover { background: #0a0a0a; color: #fff; transform: translateY(-1px); }
.btn-primary-block { display: block; width: 100%; padding: 12px 16px; background: #c9a961; color: #0a0a0a; text-align: center; }
.btn-primary-block:hover { background: #b8954f; }
.btn-primary-sm { padding: 10px 16px; font-size: 13px; background: #c9a961; color: #0a0a0a; border: none; }
.btn-primary-sm:hover { background: #b8954f; }
.btn-secondary-sm { padding: 10px 16px; font-size: 13px; background: transparent; color: #0a0a0a; border: 1px solid #d0d0d0; text-decoration: none; }
.btn-secondary-sm:hover { border-color: #0a0a0a; }
.btn-reset { display: block; width: 100%; padding: 10px 16px; background: transparent; border: 1px solid #d0d0d0; color: #555; font-weight: 600; font-size: 12px; letter-spacing: 0.05em; cursor: pointer; }
.btn-reset:hover { background: #f5f5f5; color: #0a0a0a; }

.hero-trust { list-style: none; padding: 0; margin: 0; display: flex; gap: 28px; flex-wrap: wrap; }
.hero-trust li { font-size: 13px; color: #aaa; }
.hero-trust strong { color: #fff; font-size: 22px; font-weight: 800; display: block; margin-bottom: 2px; }

.hero-stats-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  padding: 24px 28px;
  backdrop-filter: blur(10px);
}
.stat-row { display: flex; align-items: baseline; justify-content: space-between; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
.stat-row:last-child { border-bottom: none; }
.stat-row .num { font-size: 32px; font-weight: 800; color: #c9a961; line-height: 1; }
.stat-row .lbl { font-size: 13px; color: #aaa; text-transform: uppercase; letter-spacing: 0.05em; }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-stats-card { order: 2; }
}

/* ===== Category pills (top horizontal) ===== */
.cat-pills-section { background: #fff; border-bottom: 1px solid #eaeaea; padding: 20px 0; position: sticky; top: 72px; z-index: 50; }
.cat-pills { display: flex; gap: 10px; overflow-x: auto; padding-bottom: 4px; scrollbar-width: none; }
.cat-pills::-webkit-scrollbar { display: none; }
.cat-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border: 1.5px solid #d0d0d0; border-radius: 100px;
  background: #fff; color: #0a0a0a; font-size: 14px; font-weight: 600;
  white-space: nowrap; cursor: pointer; transition: all .15s;
}
.cat-pill:hover { border-color: #0a0a0a; }
.cat-pill.active { background: #0a0a0a; color: #fff; border-color: #0a0a0a; }
.cat-pill.active .cat-pill-count { color: #c9a961; }
.cat-pill-count {
  display: inline-block; padding: 2px 8px; border-radius: 100px;
  background: rgba(0,0,0,0.05); font-size: 11px; font-weight: 700; color: #888;
}
.cat-pill.active .cat-pill-count { background: rgba(255,255,255,0.1); color: #c9a961; }

/* ===== Layout: sidebar + main ===== */
.product-section { padding: 40px 0 80px; background: #fafafa; }
.product-layout { display: grid; grid-template-columns: 280px 1fr; gap: 32px; align-items: start; }

/* Filter sidebar */
.filter-sidebar { background: #fff; border: 1px solid #eaeaea; border-radius: 8px; padding: 24px; position: sticky; top: 170px; max-height: calc(100vh - 200px); overflow-y: auto; }
.filter-block { padding-bottom: 20px; margin-bottom: 20px; border-bottom: 1px solid #f0f0f0; }
.filter-block:last-child { border-bottom: none; }
.filter-title { font-size: 12px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #888; margin: 0 0 14px; }
.filter-cat-list, .filter-block ul { list-style: none; padding: 0; margin: 0; }
.filter-check { display: flex; align-items: center; gap: 10px; padding: 6px 0; cursor: pointer; font-size: 14px; }
.filter-check input { margin: 0; width: 16px; height: 16px; accent-color: #c9a961; cursor: pointer; }
.filter-check span { flex: 1; color: #333; }
.filter-check em { color: #999; font-style: normal; font-size: 12px; }
.filter-check.checked span { color: #0a0a0a; font-weight: 600; }
.filter-cta { background: #fafafa; padding: 18px; border-radius: 6px; border: 1px dashed #d0d0d0; }
.filter-cta p { font-size: 13px; color: #666; line-height: 1.5; margin: 0 0 14px; }

/* Right side: toolbar + grid */
.product-main { min-width: 0; }
.product-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  background: #fff; border: 1px solid #eaeaea; border-radius: 8px;
  padding: 14px 20px; margin-bottom: 20px;
}
.result-count { font-size: 14px; color: #555; }
.result-count #productCount { font-weight: 700; color: #0a0a0a; font-size: 16px; }
.toolbar-actions { display: flex; align-items: center; gap: 10px; }
.toolbar-actions select { padding: 8px 12px; border: 1px solid #d0d0d0; border-radius: 4px; font-size: 13px; }
.view-toggle, .filter-toggle {
  width: 36px; height: 36px; border: 1px solid #d0d0d0; background: #fff; cursor: pointer;
  border-radius: 4px; font-size: 16px; color: #555; transition: all .15s;
}
.view-toggle.active, .filter-toggle.active { background: #0a0a0a; color: #fff; border-color: #0a0a0a; }
.filter-toggle { width: auto; padding: 0 12px; font-size: 12px; font-weight: 600; display: none; }

/* Product grid */
.product-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.product-grid[data-view="list"] { grid-template-columns: 1fr; }
.product-grid[data-view="list"] .product-card { display: grid; grid-template-columns: 280px 1fr; gap: 24px; }
.product-grid[data-view="list"] .product-image-wrap { aspect-ratio: 1; }
.product-grid[data-view="list"] .product-image { height: 100%; }
.product-grid[data-view="list"] .product-badges { bottom: 8px; left: 8px; }

.product-card {
  background: #fff; border: 1px solid #eaeaea; border-radius: 8px;
  overflow: hidden; transition: all .2s;
}
.product-card:hover { border-color: #c9a961; box-shadow: 0 8px 24px rgba(0,0,0,0.08); transform: translateY(-2px); }
.product-image-wrap { position: relative; aspect-ratio: 1; overflow: hidden; background: #f5f5f5; }
.product-image { display: block; width: 100%; height: 100%; }
.product-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.product-card:hover .product-image img { transform: scale(1.05); }
.product-img-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; background: #1a1a1a; color: #c9a961; font-weight: 700; font-size: 18px; }
.product-overlay {
  position: absolute; inset: 0; background: rgba(10,10,10,0.7);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity .2s;
}
.product-card:hover .product-overlay { opacity: 1; }
.overlay-btn { color: #fff; font-size: 13px; font-weight: 600; letter-spacing: 0.1em; padding: 12px 20px; border: 1.5px solid #c9a961; border-radius: 4px; }
.product-badges { position: absolute; bottom: 8px; left: 8px; display: flex; flex-direction: column; gap: 4px; }
.badge { display: inline-block; padding: 4px 10px; font-size: 11px; font-weight: 700; border-radius: 3px; background: #0a0a0a; color: #c9a961; letter-spacing: 0.05em; }
.badge-moq, .badge-lead { background: #fff; color: #0a0a0a; }
.product-info { padding: 20px; }
.product-cat-tag { font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #c9a961; margin-bottom: 6px; }
.product-name { font-size: 17px; font-weight: 700; line-height: 1.3; margin: 0 0 12px; }
.product-name a { color: #0a0a0a; text-decoration: none; }
.product-name a:hover { color: #c9a961; }
.product-specs { list-style: none; padding: 0; margin: 0 0 16px; }
.product-specs li { display: flex; justify-content: space-between; padding: 5px 0; font-size: 12px; border-bottom: 1px solid #f5f5f5; }
.product-specs li:last-child { border-bottom: none; }
.spec-k { color: #888; }
.spec-v { color: #0a0a0a; font-weight: 600; text-align: right; max-width: 60%; }
.product-actions { display: flex; gap: 8px; }

/* Empty state */
.empty-state { background: #fff; border: 2px dashed #d0d0d0; border-radius: 8px; padding: 60px 20px; text-align: center; }
.empty-state.loading { padding: 80px 20px; }
.empty-state .spinner { width: 40px; height: 40px; border: 3px solid #f0f0f0; border-top-color: #c9a961; border-radius: 50%; margin: 0 auto 20px; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.empty-icon { font-size: 48px; margin-bottom: 16px; }
.empty-state h3 { font-size: 22px; margin: 0 0 10px; color: #0a0a0a; }
.empty-state p { color: #666; margin: 0 0 24px; }
.empty-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ===== Custom CTA Section ===== */
.custom-cta-section { padding: 60px 0; background: #0a0a0a; color: #fff; }
.custom-cta { display: grid; grid-template-columns: 1.5fr 1fr; gap: 60px; align-items: center; }
.cta-eyebrow { display: inline-block; padding: 4px 12px; background: rgba(201, 169, 97, 0.15); color: #c9a961; border-radius: 100px; font-size: 11px; font-weight: 700; letter-spacing: 0.1em; margin-bottom: 16px; }
.custom-cta-text h2 { font-size: clamp(1.8rem, 4vw, 2.4rem); font-weight: 800; margin: 0 0 16px; line-height: 1.2; }
.custom-cta-text p { color: #ccc; line-height: 1.7; margin: 0 0 24px; }
.custom-cta-feats { list-style: none; padding: 0; margin: 0 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 24px; }
.custom-cta-feats li { font-size: 14px; color: #ddd; padding: 4px 0; }
.custom-cta-actions { display: flex; flex-direction: column; gap: 12px; }
.custom-cta-actions .btn-ghost-xl { color: #fff; border-color: rgba(255,255,255,0.3); }
.custom-cta-actions .btn-ghost-xl:hover { border-color: #fff; background: #fff; color: #0a0a0a; }

@media (max-width: 900px) { .custom-cta { grid-template-columns: 1fr; gap: 32px; } }

/* ===== Application scenarios ===== */
.apps-section { padding: 80px 0; background: #fff; }
.apps-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 40px; }
.app-card { display: block; text-decoration: none; color: inherit; background: #fafafa; border-radius: 8px; overflow: hidden; transition: all .2s; }
.app-card:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(0,0,0,0.1); }
.app-img { aspect-ratio: 16/9; background-size: cover; background-position: center; }
.app-img-1 { background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%), url('../images/hero-bg.png'); background-blend-mode: multiply; }
.app-img-2 { background: linear-gradient(135deg, #c0392b 0%, #e74c3c 100%), url('../images/hero-bg.png'); background-blend-mode: multiply; }
.app-img-3 { background: linear-gradient(135deg, #6c5ce7 0%, #a29bfe 100%), url('../images/hero-bg.png'); background-blend-mode: multiply; }
.app-img-4 { background: linear-gradient(135deg, #00897b 0%, #26a69a 100%), url('../images/hero-bg.png'); background-blend-mode: multiply; }
.app-info { padding: 24px 28px; }
.app-tag { display: inline-block; padding: 3px 10px; background: rgba(201, 169, 97, 0.1); color: #c9a961; border-radius: 3px; font-size: 11px; font-weight: 700; letter-spacing: 0.1em; margin-bottom: 12px; }
.app-info h3 { font-size: 20px; font-weight: 700; margin: 0 0 8px; }
.app-info p { font-size: 14px; color: #666; margin: 0 0 12px; line-height: 1.5; }
.app-link { color: #c9a961; font-size: 13px; font-weight: 600; letter-spacing: 0.05em; }

@media (max-width: 768px) { .apps-grid { grid-template-columns: 1fr; } }

/* ===== Trust strip ===== */
.trust-strip { padding: 50px 0; background: #0a0a0a; color: #fff; }
.trust-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 30px; text-align: center; }
.trust-item { padding: 10px; }
.trust-num { font-size: 42px; font-weight: 800; color: #c9a961; line-height: 1; margin-bottom: 8px; }
.trust-num span { font-size: 24px; }
.trust-lbl { font-size: 12px; color: #aaa; text-transform: uppercase; letter-spacing: 0.1em; }

@media (max-width: 900px) { .trust-grid { grid-template-columns: repeat(2, 1fr); } }

/* ===== FAQ ===== */
.faq-section { padding: 80px 0; background: #fafafa; }
.faq-list { max-width: 800px; margin: 40px auto 0; }
.faq-item { background: #fff; border: 1px solid #eaeaea; border-radius: 6px; margin-bottom: 12px; }
.faq-item summary { padding: 18px 24px; font-size: 16px; font-weight: 600; cursor: pointer; list-style: none; position: relative; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; position: absolute; right: 24px; top: 50%; transform: translateY(-50%); font-size: 24px; color: #c9a961; transition: transform .2s; }
.faq-item[open] summary::after { content: '−'; }
.faq-item summary:hover { color: #c9a961; }
.faq-body { padding: 0 24px 18px; color: #555; line-height: 1.7; }
.faq-body p { margin: 0; }

/* ===== Modal (inquiry) ===== */
.modal { position: fixed; inset: 0; z-index: 1000; display: flex; align-items: center; justify-content: center; }
.modal[aria-hidden="true"] { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(10,10,10,0.7); backdrop-filter: blur(4px); }
.modal-card {
  position: relative; background: #fff; border-radius: 8px;
  max-width: 540px; width: calc(100% - 40px); max-height: 90vh; overflow-y: auto;
  padding: 36px 40px; box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  animation: modalSlideIn .25s ease-out;
}
@keyframes modalSlideIn { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal-close { position: absolute; top: 12px; right: 16px; width: 32px; height: 32px; background: none; border: none; font-size: 28px; line-height: 1; color: #888; cursor: pointer; }
.modal-close:hover { color: #0a0a0a; }
.modal-eyebrow { display: inline-block; padding: 3px 10px; background: rgba(201, 169, 97, 0.1); color: #c9a961; border-radius: 100px; font-size: 11px; font-weight: 700; letter-spacing: 0.1em; margin-bottom: 8px; }
.modal-header h3 { font-size: 22px; font-weight: 700; margin: 0 0 4px; color: #0a0a0a; }
.modal-sku { font-size: 13px; color: #888; margin: 0 0 20px; }
.modal-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.modal-form .form-row label { display: flex; flex-direction: column; font-size: 12px; font-weight: 600; color: #555; }
.modal-form .form-row label.full { grid-column: 1 / -1; }
.modal-form input, .modal-form textarea {
  padding: 10px 12px; border: 1px solid #d0d0d0; border-radius: 4px;
  font-size: 14px; font-family: inherit; margin-top: 4px;
}
.modal-form input:focus, .modal-form textarea:focus { outline: none; border-color: #c9a961; }
.modal-form .required { color: #c0392b; }
.modal-form button { width: 100%; margin-top: 8px; }
.modal-disclaimer { text-align: center; font-size: 12px; color: #888; margin: 12px 0 0; }
@media (max-width: 540px) { .modal-form .form-row { grid-template-columns: 1fr; } }

/* ===== Mobile sidebar drawer ===== */
@media (max-width: 900px) {
  .product-layout { grid-template-columns: 1fr; }
  .filter-sidebar { position: fixed; top: 0; left: -320px; width: 300px; height: 100vh; z-index: 999; border-radius: 0; transition: left .25s; }
  .filter-sidebar.open { left: 0; }
  .filter-toggle { display: inline-flex; }
  .product-grid, .product-grid[data-view="list"] { grid-template-columns: 1fr; }
  .product-grid[data-view="list"] .product-card { grid-template-columns: 1fr; }
  .cat-pills-section { position: static; }
}
@media (max-width: 600px) {
  .hero-trust { gap: 16px; }
  .hero-trust li { font-size: 12px; }
  .hero-trust strong { font-size: 18px; }
  .custom-cta-feats { grid-template-columns: 1fr; }
}