/* ============================================
   WOERTE HOME - Foreign Trade Website
   Design System & Styles
   ============================================ */

/* ===== CSS Variables / Design Tokens ===== */
:root {
  /* Brand Colors */
  --color-primary: #1a3a5c;
  --color-primary-dark: #12283d;
  --color-primary-light: #2a5378;
  --color-accent: #d4a017;
  --color-accent-dark: #b8860b;
  --color-accent-light: #e8b830;

  /* Neutrals */
  --color-white: #ffffff;
  --color-bg: #f8f9fa;
  --color-bg-alt: #eef1f5;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-border-dark: #cbd5e1;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-light: #94a3b8;

  /* Status Colors */
  --color-success: #16a34a;
  --color-warning: #f59e0b;
  --color-danger: #dc2626;
  --color-info: #0284c7;

  /* Typography */
  --font-sans: 'Segoe UI', 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-serif: Georgia, 'Times New Roman', serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Layout */
  --container-max: 1280px;
  --header-height: 72px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.15);
  --shadow-xl: 0 24px 60px rgba(0,0,0,0.18);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* ===== Utility Classes ===== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-narrow {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section { padding: var(--space-3xl) 0; }
.section-sm { padding: var(--space-2xl) 0; }
.section-bg { background: var(--color-bg-alt); }
.section-dark { background: var(--color-primary-dark); color: var(--color-white); }

.text-center { text-align: center; }
.text-accent { color: var(--color-accent); }
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-text-secondary); }

.hidden { display: none !important; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }

.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.gap-grid { gap: var(--space-xl); }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.3rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }

.section-dark h1,
.section-dark h2,
.section-dark h3 { color: var(--color-white); }

.section-title {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-title h2 {
  position: relative;
  display: inline-block;
  margin-bottom: var(--space-sm);
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--color-accent);
  border-radius: 2px;
}

.section-title p {
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: var(--space-md) auto 0;
}

.eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
}

.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(-2px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}
.btn-accent:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline-light {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.5);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--color-white);
}

.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.btn-block { width: 100%; }

/* ===== Header / Navigation ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(12px);
  z-index: 1000;
  transition: all var(--transition-base);
  border-bottom: 1px solid var(--color-border);
}

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

.nav {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-logo .logo-img {
  height: 44px;
  width: auto;
  border-radius: var(--radius-sm);
  display: block;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-menu a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.nav-menu a:hover { color: var(--color-primary); }
.nav-menu a:hover::after,
.nav-menu a.active::after { width: 100%; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* B2B/B2C Mode Toggle */
.mode-toggle {
  display: flex;
  background: var(--color-bg-alt);
  border-radius: var(--radius-full);
  padding: 3px;
  position: relative;
}

.mode-toggle button {
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  color: var(--color-text-secondary);
  z-index: 1;
  position: relative;
}

.mode-toggle button.active {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

/* Inline detail page mode switch — visible on all screen sizes */
.detail-mode-switch {
  display: inline-flex;
  background: var(--color-bg-alt);
  border-radius: var(--radius-full);
  padding: 3px;
  margin-bottom: 20px;
  gap: 3px;
}
.detail-mode-switch button {
  padding: 8px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  cursor: pointer;
}
.detail-mode-switch button.active {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

/* Cart Icon */
.cart-btn {
  position: relative;
  padding: 8px;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.cart-btn:hover { color: var(--color-primary); }

.cart-btn svg { width: 24px; height: 24px; }

.cart-count {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 0.7rem;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

/* ===== Hero Section ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%, var(--color-primary-light) 100%);
  color: var(--color-white);
  overflow: hidden;
  padding-top: var(--header-height);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url('https://images.unsplash.com/photo-1556228453-efd6c1ff04f6?w=1600&q=80') center/cover;
  opacity: 0.15;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  padding: var(--space-2xl) 0;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
  line-height: 1.15;
}

.hero h1 .highlight {
  color: var(--color-accent);
}

.hero-subtitle {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--space-xl);
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

.hero-stats {
  display: flex;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}

.hero-stat {
  text-align: left;
}

.hero-stat .stat-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}

.hero-stat .stat-label {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  margin-top: var(--space-xs);
}

/* ===== Trust Bar ===== */
.trust-bar {
  background: var(--color-white);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
}

.trust-items {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
}

.trust-item .icon {
  width: 44px;
  height: 44px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.3rem;
  flex-shrink: 0;
}

/* ===== Category Cards ===== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.category-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 1;
  cursor: pointer;
  transition: transform var(--transition-base);
}

.category-card:hover { transform: translateY(-6px); }

.category-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.category-card:hover img { transform: scale(1.1); }

.category-card .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.2) 50%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-lg);
  color: var(--color-white);
}

.category-card .overlay h3 {
  color: var(--color-white);
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.category-card .overlay p {
  font-size: 0.85rem;
  opacity: 0.9;
}

/* ===== Product Cards ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.product-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: transparent;
}

.product-card .product-img {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--color-bg-alt);
}

.product-card .product-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.product-badge {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  z-index: 1;
}

.product-badge.b2b {
  background: var(--color-primary);
}

.product-badge.sale {
  background: var(--color-danger);
}

.product-card .product-info {
  padding: var(--space-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card .product-name {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--color-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card .product-sku {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
}

.product-card .product-price {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.product-card .price-current {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
}

.product-card .price-original {
  font-size: 0.9rem;
  color: var(--color-text-light);
  text-decoration: line-through;
}

.product-card .price-wholesale {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.product-card .price-wholesale strong {
  color: var(--color-primary);
}

.product-card .product-moq {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
  padding: 4px 8px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  display: inline-block;
}

.product-card .product-actions {
  margin-top: auto;
  display: flex;
  gap: var(--space-sm);
}

.product-card .btn-add-cart {
  flex: 1;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 10px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  transition: all var(--transition-fast);
}

.product-card .btn-add-cart:hover {
  background: var(--color-primary-dark);
}

.product-card .btn-inquire {
  flex: 1;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  padding: 10px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.product-card .btn-inquire:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

/* ===== B2B Section ===== */
.b2b-section {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.b2b-content {
  padding: var(--space-2xl);
}

.b2b-content h2 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.b2b-content > p {
  color: rgba(255,255,255,0.8);
  margin-bottom: var(--space-xl);
}

.b2b-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.b2b-feature {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.b2b-feature .icon-box {
  width: 48px;
  height: 48px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.b2b-feature h4 {
  color: var(--color-white);
  margin-bottom: 4px;
}

.b2b-feature p {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
}

.b2b-image {
  background: url('https://images.unsplash.com/photo-1493809842364-78817add7ffb?w=800&q=80') center/cover;
  min-height: 400px;
}

/* ===== Why Choose Us ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.feature-card {
  text-align: center;
  padding: var(--space-xl);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

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

.feature-card .icon-circle {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.feature-card h3 {
  margin-bottom: var(--space-sm);
}

.feature-card p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

/* ===== Testimonials ===== */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.testimonial-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
}

.testimonial-card .stars {
  color: var(--color-accent);
  margin-bottom: var(--space-md);
  font-size: 1.1rem;
}

.testimonial-card .quote {
  color: var(--color-text-secondary);
  font-style: italic;
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.testimonial-card .author {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.testimonial-card .author img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-card .author-avatar-text {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1a3a5c, #2a5378);
  color: #d4a017;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  flex-shrink: 0;
}

.testimonial-card .author-info .name {
  font-weight: 600;
  font-size: 0.9rem;
}

.testimonial-card .author-info .role {
  font-size: 0.8rem;
  color: var(--color-text-light);
}

/* ===== CTA Section ===== */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--color-white);
  text-align: center;
  padding: var(--space-3xl) 0;
}

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

.cta-section p {
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--space-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== Page Header (inner pages) ===== */
.page-header {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: var(--color-white);
  padding: calc(var(--header-height) + var(--space-2xl)) 0 var(--space-2xl);
  text-align: center;
}

.page-header h1 {
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}

.page-header .breadcrumb {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
}

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

/* ===== Products Page - Filters ===== */
.products-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: var(--space-xl);
  padding: var(--space-2xl) 0;
}

.filter-sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--space-md));
  align-self: start;
}

.filter-group {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.filter-group:last-child { border-bottom: none; }

.filter-group h4 {
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

.filter-option {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 6px 0;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.filter-option:hover { color: var(--color-primary); }

.filter-option input { accent-color: var(--color-primary); }

.filter-option .count {
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--color-text-light);
}

.price-range {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.price-range input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

.products-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.products-toolbar .result-count {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.sort-select {
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  background: var(--color-white);
  cursor: pointer;
}

/* ===== Product Detail Page ===== */
.product-detail-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  padding: var(--space-2xl) 0;
}

.product-gallery .main-image {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--space-md);
  background: var(--color-bg-alt);
}

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

.product-gallery .thumbnails {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
}

.product-gallery .thumb {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color var(--transition-fast);
}

.product-gallery .thumb.active { border-color: var(--color-primary); }

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

.product-info-detail h1 {
  margin-bottom: var(--space-sm);
}

.product-info-detail .product-brand-line {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin: 2px 0 10px 0;
  font-size: 0.95rem;
}

.product-info-detail .product-brand-line .pb-label {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.product-info-detail .product-brand-line .pb-value {
  font-weight: 700;
  color: var(--color-primary, #1a3a5c);
}

/* 品牌名可点击：跳转店铺首页 */
.product-info-detail .product-brand-line a.pb-link {
  text-decoration: none;
  cursor: pointer;
  color: var(--color-primary, #1a3a5c);
  transition: opacity 0.15s ease;
}

.product-info-detail .product-brand-line a.pb-link:hover,
.product-info-detail .product-brand-line a.pb-link:focus-visible {
  text-decoration: underline;
  opacity: 0.85;
  outline: none;
}

.product-info-detail .product-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.product-info-detail .rating {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.product-info-detail .rating .stars { color: var(--color-accent); }

.product-info-detail .price-box {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.price-tier {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.price-tier:last-child { border-bottom: none; }

.price-tier .tier-label { font-size: 0.9rem; color: var(--color-text-secondary); }
.price-tier .tier-price { font-size: 1.15rem; font-weight: 700; color: var(--color-primary); }

.qty-selector {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.qty-selector label {
  font-size: 0.9rem;
  font-weight: 600;
}

.qty-input {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.qty-input button {
  width: 40px;
  height: 40px;
  background: var(--color-bg-alt);
  font-size: 1.2rem;
  transition: background var(--transition-fast);
}

.qty-input button:hover { background: var(--color-border-dark); }

.qty-input input {
  width: 60px;
  height: 40px;
  text-align: center;
  border: none;
  font-size: 1rem;
  font-weight: 600;
}

.product-detail-actions {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

/* ===== Dual B2B/B2C Price Area ===== */
.dual-price-area {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.price-section {
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  border: 2px solid var(--color-border);
  transition: border-color var(--transition-fast);
}

.price-section.b2c-section {
  background: linear-gradient(135deg, #f0f7ff 0%, #e8f0fe 100%);
  border-color: #c5def5;
}

.price-section.b2b-section {
  background: linear-gradient(135deg, #fff8e8 0%, #fef0d4 100%);
  border-color: #f0d68a;
}

.price-section-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.price-section-badge {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  padding: 3px 10px;
  border-radius: 20px;
  color: #fff;
}

.b2c-badge { background: var(--color-primary); }
.b2b-badge { background: var(--color-accent-dark); }

.price-section-tag {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.price-fob-label {
  font-size: 0.8rem;
  color: var(--color-accent-dark, #b8860b);
  background: rgba(212, 160, 23, 0.1);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 8px;
  font-weight: 600;
}

.price-row-main {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.price-row-main .price-current {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-primary);
}

.b2b-section .price-row-main .price-current {
  color: var(--color-accent-dark);
}

.price-row-main .price-strike {
  font-size: 1.1rem;
  color: var(--color-text-light);
  text-decoration: line-through;
}

.price-row-main .price-unit {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.qty-cart-row {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.qty-cart-row .qty-input {
  flex-shrink: 0;
}

/* ===== Product Video Section ===== */
.product-video-section {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

/* ===== Variant Specs Display ===== */
.variant-specs {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-bottom: var(--space-lg);
}

.variant-specs .vs-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.variant-specs .vs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xs) var(--space-md);
}

.variant-specs .vs-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 0;
  font-size: 0.85rem;
}

.variant-specs .vs-label {
  color: var(--color-text-secondary);
}

.variant-specs .vs-value {
  font-weight: 600;
  color: var(--color-text);
}

.product-specs {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-lg);
}

.product-specs table {
  width: 100%;
  border-collapse: collapse;
}

.product-specs table th,
.product-specs table td {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}

.product-specs table th {
  text-align: left;
  font-weight: 600;
  color: var(--color-text-secondary);
  width: 40%;
}

/* Tabs */
.product-tabs {
  margin-top: var(--space-2xl);
}

.tab-headers {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--color-border);
  margin-bottom: var(--space-lg);
}

.tab-headers button {
  padding: var(--space-md) var(--space-lg);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition-fast);
}

.tab-headers button.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tab-content { display: none; }
.tab-content.active { display: block; }

.tab-content p { margin-bottom: var(--space-md); color: var(--color-text-secondary); }

/* ===== Wholesale / B2B Form ===== */
.wholesale-form {
  max-width: 800px;
  margin: 0 auto;
  background: var(--color-surface);
  padding: var(--space-2xl);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

.form-group label .required { color: var(--color-danger); }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26,58,92,0.1);
}

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

.form-note {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-top: var(--space-md);
}

/* ===== About Page ===== */
.about-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.about-hero-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
}

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

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.about-stat {
  text-align: center;
  padding: var(--space-lg);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.about-stat .num {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.about-stat .label {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-top: var(--space-xs);
}

.timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  display: flex;
  gap: var(--space-lg);
  padding-bottom: var(--space-xl);
  position: relative;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 4px;
  width: 18px;
  height: 18px;
  background: var(--color-accent);
  border: 3px solid var(--color-white);
  border-radius: 50%;
  z-index: 1;
}

.timeline-item .year {
  width: 80px;
  flex-shrink: 0;
  padding-left: var(--space-xl);
  font-weight: 700;
  color: var(--color-primary);
  font-size: 1.1rem;
}

.timeline-item .content { flex: 1; }
.timeline-item .content h4 { margin-bottom: var(--space-xs); }
.timeline-item .content p { color: var(--color-text-secondary); font-size: 0.9rem; }

/* ===== Contact Page ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  padding: var(--space-2xl) 0;
}

.contact-info-card {
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-2xl);
}

.contact-info-card h3 { color: var(--color-white); margin-bottom: var(--space-lg); }

.contact-item {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.contact-item .icon {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-item .label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 2px;
}

.contact-item .value {
  font-size: 0.95rem;
  font-weight: 500;
}

.social-links {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.social-links a {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.social-links a:hover {
  background: var(--color-accent);
  transform: translateY(-2px);
}

.contact-form {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-2xl);
  border: 1px solid var(--color-border);
}

.map-embed {
  margin-top: var(--space-2xl);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.map-embed iframe { width: 100%; height: 400px; border: 0; display: block; }

/* ===== Cart Page ===== */
.cart-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: var(--space-xl);
  padding: var(--space-2xl) 0;
}

.cart-items { background: var(--color-surface); border-radius: var(--radius-md); border: 1px solid var(--color-border); overflow: hidden; }

.cart-header {
  display: grid;
  grid-template-columns: 1fr 100px 80px 100px 40px;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-alt);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.cart-item {
  display: grid;
  grid-template-columns: 1fr 100px 80px 100px 40px;
  gap: var(--space-md);
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  align-items: center;
}

.cart-item:last-child { border-bottom: none; }

.cart-item .item-info {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.cart-item .item-info img {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

.cart-item .item-info .item-name { font-weight: 600; font-size: 0.9rem; }
.cart-item .item-info .item-sku { font-size: 0.8rem; color: var(--color-text-light); }

.cart-item .item-price { font-weight: 600; color: var(--color-primary); }
.cart-item .item-total { font-weight: 700; color: var(--color-primary); }

.cart-item .btn-remove {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.cart-item .btn-remove:hover { background: var(--color-danger); color: var(--color-white); }

.cart-summary {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: var(--space-lg);
  align-self: start;
  position: sticky;
  top: calc(var(--header-height) + var(--space-md));
}

.cart-summary h3 { margin-bottom: var(--space-lg); }

.summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.summary-row.total {
  border-top: 2px solid var(--color-border);
  padding-top: var(--space-md);
  margin-top: var(--space-md);
  margin-bottom: var(--space-lg);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text);
}

.summary-row.total .amount { color: var(--color-primary); }

.freight-input {
  margin-bottom: var(--space-lg);
  padding: 12px 14px;
  background: var(--color-bg-alt, #f8f9fa);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.freight-input label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

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

.freight-currency {
  font-weight: 700;
  color: var(--color-accent-dark, #b8860b);
  font-size: 1rem;
}

.freight-row input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
}

.freight-hint {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  margin-top: 6px;
}

/* B2B freight payment modes (free / collect / negotiated) */
.freight-modes {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
}

.freight-modes-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  margin-bottom: 2px;
  text-align: center;
}

.freight-mode {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 4px;
  padding: 10px 12px;
  background: var(--color-bg-alt, #f8f9fa);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color .15s, background .15s;
}

.freight-mode-main {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
}

.freight-mode input[type="radio"] {
  margin: 0;
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  accent-color: var(--color-accent-dark, #b8860b);
  cursor: pointer;
}

.freight-mode.active {
  border-color: var(--color-accent-dark, #b8860b);
  background: #fdf8ec;
}

.freight-mode-name {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-text);
  line-height: 1.2;
}

.freight-mode-desc {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-top: 0;
  line-height: 1.4;
}

.freight-note {
  width: 100%;
  margin-top: 8px;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  resize: vertical;
  font-family: inherit;
}

.freight-note-count {
  text-align: right;
  font-size: 0.7rem;
  color: var(--color-text-light);
  margin-top: 2px;
}

/* Admin PI order freight modes */
.pi-freight-modes {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  padding: 10px 12px;
  background: var(--bg-2, #f8fafc);
  border: 1px solid var(--border, #e2e8f0);
  border-radius: 8px;
  font-size: 0.85rem;
}

.pi-freight-modes label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-weight: 500;
}

.cart-empty {
  text-align: center;
  padding: var(--space-3xl) 0;
}

.cart-empty .icon { font-size: 4rem; color: var(--color-text-light); margin-bottom: var(--space-md); }
.cart-empty h3 { margin-bottom: var(--space-sm); }
.cart-empty p { color: var(--color-text-secondary); margin-bottom: var(--space-lg); }

/* ===== Checkout / Payment ===== */
.checkout-steps {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-bottom: var(--space-2xl);
}

.checkout-step {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-light);
  font-size: 0.9rem;
  font-weight: 600;
}

.checkout-step .step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}

.checkout-step.active { color: var(--color-primary); }
.checkout-step.active .step-num { background: var(--color-primary); color: var(--color-white); }
.checkout-step.done { color: var(--color-success); }
.checkout-step.done .step-num { background: var(--color-success); color: var(--color-white); }

.checkout-step-divider {
  width: 60px;
  height: 2px;
  background: var(--color-border);
  margin: 0 var(--space-sm);
}

.checkout-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-xl);
  padding-bottom: var(--space-2xl);
}

.checkout-form-section {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.checkout-form-section h3 {
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.checkout-form-section h3 .num {
  width: 28px;
  height: 28px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
}

.payment-methods {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.payment-method {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.payment-method:hover { border-color: var(--color-border-dark); }
.payment-method.active { border-color: var(--color-primary); background: var(--color-bg-alt); }

.payment-method input { accent-color: var(--color-primary); }

.payment-method .method-icon { font-size: 1.5rem; }
.payment-method .method-info .name { font-weight: 600; font-size: 0.95rem; }
.payment-method .method-info .desc { font-size: 0.8rem; color: var(--color-text-secondary); }

.credit-card-form {
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
}

.card-input {
  position: relative;
  margin-bottom: var(--space-md);
}

.card-input label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.card-input input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast);
}

.card-input input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.card-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.card-brands {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
  font-size: 1.5rem;
}

.order-summary-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: var(--space-lg);
  align-self: start;
  position: sticky;
  top: calc(var(--header-height) + var(--space-md));
}

.order-summary-card h3 { margin-bottom: var(--space-lg); }

.order-item {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.order-item img { width: 60px; height: 60px; border-radius: var(--radius-sm); object-fit: cover; }
.order-item .item-name { font-size: 0.85rem; font-weight: 600; }
.order-item .item-qty { font-size: 0.8rem; color: var(--color-text-light); }
.order-item .item-price { font-size: 0.85rem; font-weight: 600; color: var(--color-primary); margin-left: auto; }

.bank-transfer-info {
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  line-height: 2;
}

.bank-transfer-info strong { color: var(--color-primary); }

/* Order Confirmation */
.order-confirmation {
  text-align: center;
  padding: var(--space-3xl) 0;
}

.order-confirmation .success-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-lg);
  background: var(--color-success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--color-white);
}

.order-confirmation h2 { margin-bottom: var(--space-sm); }
.order-confirmation > p { color: var(--color-text-secondary); margin-bottom: var(--space-lg); }

.order-details-card {
  max-width: 600px;
  margin: var(--space-lg) auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  text-align: left;
}

.order-details-card .detail-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.order-details-card .detail-row:last-child { border-bottom: none; }
.order-details-card .detail-row .label { color: var(--color-text-secondary); font-size: 0.9rem; }
.order-details-card .detail-row .value { font-weight: 600; font-size: 0.9rem; }

/* ===== Order Tracking Page (track.html) ===== */
.track-search-card {
  max-width: 640px;
  margin: var(--space-xl) auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
}

.track-hint {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin: var(--space-sm) 0 0;
  text-align: center;
}

.track-error {
  max-width: 640px;
  margin: 0 auto var(--space-lg);
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 0.92rem;
  text-align: center;
}

.track-card {
  max-width: 800px;
  margin: 0 auto var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
}

.track-card h3 { margin-top: 0; }

.track-card .detail-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.track-card .detail-row:last-child { border-bottom: none; }
.track-card .detail-row .label { color: var(--color-text-secondary); font-size: 0.9rem; }
.track-card .detail-row .value { font-weight: 600; font-size: 0.9rem; text-align: right; }

.track-steps {
  display: flex;
  justify-content: space-between;
  margin: var(--space-lg) 0 var(--space-sm);
  position: relative;
}

.track-steps::before {
  content: '';
  position: absolute;
  top: 16px;
  left: 12%;
  right: 12%;
  height: 3px;
  background: var(--color-border);
  z-index: 0;
}

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

.track-step-dot {
  width: 34px;
  height: 34px;
  line-height: 34px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  color: var(--color-text-secondary);
  font-weight: 700;
  font-size: 0.85rem;
  margin: 0 auto 8px;
  border: 3px solid var(--color-surface);
}

.track-step.active .track-step-dot {
  background: var(--color-primary);
  color: #fff;
}

.track-step.current .track-step-dot {
  background: #d4a017;
  color: #fff;
  box-shadow: 0 0 0 4px rgba(212, 160, 23, 0.25);
}

.track-step-label {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  font-weight: 600;
}

.track-step.active .track-step-label { color: var(--color-primary); }
.track-step.current .track-step-label { color: #b8860b; }

.track-status-note {
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  margin: var(--space-sm) 0 0;
}

.track-status-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-top: var(--space-md);
}

.track-items-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.track-items-table th {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 2px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.track-items-table td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--color-border);
}

.track-mode-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
  vertical-align: middle;
}

.track-mode-tag.b2b {
  background: #fdf6e3;
  color: #b8860b;
  border: 1px solid #f0dfa8;
}

@media (max-width: 640px) {
  .track-step-label { font-size: 0.68rem; }
  .track-step-dot { width: 28px; height: 28px; line-height: 28px; }
  .track-steps::before { top: 13px; }
}

/* ===== Footer ===== */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.7);
  padding: var(--space-2xl) 0 var(--space-md);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .nav-logo {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: var(--space-md);
  max-width: 320px;
}

.footer-col h4 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

.footer-col ul li { margin-bottom: var(--space-sm); }

.footer-col ul li a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition-fast);
}

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

.footer-newsletter input {
  width: 100%;
  padding: 10px 14px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  color: var(--color-white);
  font-size: 0.9rem;
  margin-bottom: var(--space-sm);
}

.footer-newsletter input::placeholder { color: rgba(255,255,255,0.4); }

.footer-newsletter input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-md);
  font-size: 0.85rem;
}

.footer-bottom .payment-icons {
  display: flex;
  gap: var(--space-sm);
  font-size: 1.8rem;
}

/* ===== Toast Notification ===== */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--color-text);
  color: var(--color-white);
  padding: 14px 22px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  z-index: 2000;
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { background: var(--color-success); }
.toast.error { background: var(--color-danger); }

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.modal-overlay.show { display: flex; }

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 100%;
  padding: var(--space-xl);
  text-align: center;
  animation: modalIn 0.3s ease;
}

@keyframes modalIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal .icon { font-size: 3rem; margin-bottom: var(--space-md); }
.modal h3 { margin-bottom: var(--space-sm); }
.modal p { color: var(--color-text-secondary); margin-bottom: var(--space-lg); }
.modal .modal-actions { display: flex; gap: var(--space-md); justify-content: center; }

/* ===== WhatsApp Float Button ===== */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  left: 24px;
  width: 56px;
  height: 56px;
  background: #25d366;
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: var(--shadow-lg);
  z-index: 999;
  transition: all var(--transition-base);
  animation: pulse 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  background: #1da851;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(37,211,102,0.4); }
  50% { box-shadow: 0 0 0 12px rgba(37,211,102,0); }
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .category-grid,
  .product-grid,
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
  .features-grid,
  .testimonial-grid,
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; gap: var(--space-lg); }
  .footer-brand { grid-column: 1 / -1; }
  .b2b-section { grid-template-columns: 1fr; }
  .b2b-image { min-height: 250px; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .checkout-layout,
  .cart-layout { grid-template-columns: 1fr; }
  .cart-header,
  .cart-item { grid-template-columns: 1fr 80px 70px 90px 32px; }
}

@media (max-width: 768px) {
  :root { --header-height: 64px; }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
    box-shadow: var(--shadow-md);
    transform: translateY(-100%);
    opacity: 0;
    transition: all var(--transition-base);
    pointer-events: none;
  }

  .nav-menu.active { transform: translateY(0); opacity: 1; pointer-events: auto; }

  .nav-toggle { display: flex; }

  .mode-toggle { display: none; }

  .category-grid,
  .product-grid,
  .grid-4,
  .grid-3,
  .grid-2,
  .features-grid,
  .testimonial-grid { grid-template-columns: 1fr 1fr; }

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

  .hero { min-height: 600px; }
  .hero-stats { gap: var(--space-lg); }
  .hero-stat .stat-num { font-size: 2rem; }

  .products-layout { grid-template-columns: 1fr; }
  .filter-sidebar { position: static; }

  .product-detail-layout { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .about-hero { grid-template-columns: 1fr; }

  .cart-header { display: none; }
  .cart-item {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
  .cart-item .item-info { flex-direction: row; }

  .checkout-steps .checkout-step span:not(.step-num) { display: none; }
  .checkout-step-divider { width: 30px; }

  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--space-sm); text-align: center; }

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

  .variant-specs .vs-grid { grid-template-columns: 1fr; }
  .qty-cart-row { flex-wrap: wrap; }
  .qty-cart-row .btn-lg { font-size: 0.9rem; padding: 10px 16px; }
}

@media (max-width: 480px) {
  .category-grid,
  .product-grid,
  .grid-4,
  .grid-3,
  .grid-2,
  .features-grid,
  .testimonial-grid,
  .about-stats { grid-template-columns: 1fr; }

  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }

  .container { padding: 0 var(--space-md); }
  .section { padding: var(--space-2xl) 0; }

  .trust-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .trust-card { padding: 12px 6px; }
  .trust-img-wrap { width: 56px; height: 56px; }
  .cert-modal-footer { flex-direction: column; gap: 8px; }
  .cert-modal-footer .btn { width: 100%; text-align: center; }
  .cert-modal-body { min-height: 200px; }
  .cert-modal-body iframe { height: 45vh; }
}

/* ============================================
   PRODUCT VARIANTS (detail page)
   ============================================ */
.variant-selector { margin-bottom: 20px; }
.variant-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.variant-chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px 6px 6px;
  border: 2px solid var(--color-border); border-radius: 40px;
  background: var(--color-white); cursor: pointer;
  font-size: 0.9rem; font-weight: 600; color: var(--color-text);
  transition: border-color .2s, box-shadow .2s, transform .15s;
}
.variant-chip:hover { border-color: var(--color-primary-light); transform: translateY(-1px); }
.variant-chip.active { border-color: var(--color-primary); box-shadow: 0 2px 8px rgba(26,58,92,.18); }
.variant-chip img { width: 36px; height: 36px; border-radius: 50%; object-fit: cover; }
.variant-chip .vc-price { color: var(--color-primary); font-size: 0.85rem; }

/* ============================================
   Certifications / Trust Section
   ============================================ */
.section-certifications {
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
  padding: 64px 0;
}
.section-certifications .section-subtitle {
  color: #64748b; font-size: 0.95rem; margin-top: 8px; max-width: 640px; margin-left: auto; margin-right: auto;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 18px;
  margin-top: 36px;
}
.trust-card {
  display: flex; flex-direction: column; align-items: center;
  padding: 22px 16px; background: #fff; border: 1px solid #e2e8f0;
  border-radius: 14px; cursor: pointer; text-align: center;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  font-family: inherit; color: inherit;
}
.trust-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(26, 58, 92, 0.10);
  border-color: var(--color-primary, #1a3a5c);
}
.trust-card:focus-visible {
  outline: 3px solid var(--color-primary-light, #2a5378);
  outline-offset: 2px;
}
.trust-img-wrap {
  width: 96px; height: 96px; display: flex; align-items: center;
  justify-content: center; margin-bottom: 14px;
  background: #f8fafc; border-radius: 12px; padding: 8px;
  border: 1px solid #eef2f7;
}
.trust-img-wrap img { max-width: 100%; max-height: 100%; object-fit: contain; }
.trust-img-empty {
  width: 100%; height: 100%; display: flex; align-items: center;
  justify-content: center; background: linear-gradient(135deg, #1a3a5c, #2a5378);
  color: #d4a017; font-weight: 800; font-size: 28px; border-radius: 8px;
}
.trust-name {
  font-size: 14px; font-weight: 700; color: #1e293b;
  display: flex; align-items: center; gap: 6px;
}
.trust-pdf-tag {
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 11px; padding: 1px 6px; background: #fef3c7; color: #92400e;
  border-radius: 999px; font-weight: 700;
}
.trust-desc {
  margin-top: 8px; font-size: 12.5px; color: #64748b; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden; word-break: break-word;
}
.trust-loading, .trust-error {
  grid-column: 1 / -1; text-align: center; color: #94a3b8;
  padding: 24px; font-size: 13px;
}

/* Modal */
.cert-modal[hidden] { display: none; }
.cert-modal {
  position: fixed; inset: 0; z-index: 9999;
  display: flex; align-items: center; justify-content: center;
}
.cert-modal-backdrop {
  position: absolute; inset: 0; background: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(2px);
}
.cert-modal-box {
  position: relative; z-index: 1; width: min(880px, 92vw);
  max-height: 92vh; background: #fff; border-radius: 14px;
  display: flex; flex-direction: column; overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  animation: certModalIn 0.22s ease-out;
}
@keyframes certModalIn {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.cert-modal-close {
  position: absolute; top: 10px; right: 10px; width: 34px; height: 34px;
  border: none; background: rgba(0,0,0,0.55); color: #fff;
  border-radius: 50%; cursor: pointer; font-size: 16px;
  display: flex; align-items: center; justify-content: center;
  z-index: 2;
}
.cert-modal-close:hover { background: rgba(0,0,0,0.8); }
.cert-modal-header {
  padding: 22px 24px 14px; border-bottom: 1px solid #f1f5f9;
}
.cert-modal-header h3 {
  margin: 0 0 4px; font-size: 18px; color: #1a3a5c;
  padding-right: 36px;
}
.cert-modal-desc { margin: 0; font-size: 13px; color: #64748b; line-height: 1.5; }
.cert-modal-body {
  flex: 1; min-height: 380px; background: #f8fafc;
  display: flex; align-items: center; justify-content: center;
  overflow: auto; position: relative;
}
.cert-modal-body > div { position: relative; }
.cert-modal-body img {
  max-width: 100%; max-height: 70vh; object-fit: contain;
}
.cert-modal-body iframe {
  width: 100%; height: 70vh; border: none; background: #fff;
}
.cert-modal-footer {
  display: flex; gap: 10px; justify-content: flex-end;
  padding: 14px 24px; border-top: 1px solid #f1f5f9; background: #fff;
}

@media (max-width: 768px) {
  .section-certifications { padding: 44px 0; }
  .trust-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
  .trust-card { padding: 16px 10px; }
  .trust-img-wrap { width: 72px; height: 72px; }
  .cert-modal-body { min-height: 280px; }
  .cert-modal-body iframe { height: 50vh; }
}