/* WZRODS B2B - Modern Design System v1.0 */
/* ============================ CSS Custom Properties ============================ */
:root {
  /* Primary Colors - Flag & Banner Industry */
  --primary: #1a5276;
  --primary-light: #2980b9;
  --primary-dark: #0d3446;
  --accent: #e74c3c;
  --accent-light: #f1948a;
  --accent-dark: #c0392b;

  /* Neutral Colors */
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --black: #000000;

  /* Functional */
  --success: #10b981;
  --success-light: #d1fae5;
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --danger: #ef4444;
  --info: #3b82f6;
  --info-light: #dbeafe;

  /* Typography */
  --font-sans: "Lato", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-heading: "Rubik", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  /* Layout */
  --max-width: 1280px;
  --header-height: 72px;
  --sidebar-width: 260px;

  /* Borders */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* Animations */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================ Reset & Base ============================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
[hidden] {
  display: none !important;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: var(--primary-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--primary);
}
ul,
ol {
  list-style: none;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ============================ Typography ============================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--gray-900);
}
h1 {
  font-size: var(--text-4xl);
}
h2 {
  font-size: var(--text-3xl);
}
h3 {
  font-size: var(--text-2xl);
}
h4 {
  font-size: var(--text-xl);
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  text-align: center;
  margin-bottom: var(--space-4);
  position: relative;
}
.section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin: var(--space-4) auto 0;
  border-radius: var(--radius-full);
}
.section-subtitle {
  text-align: center;
  color: var(--gray-600);
  font-size: var(--text-lg);
  max-width: 600px;
  margin: 0 auto var(--space-12);
}

/* ============================ Header ============================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  height: var(--header-height);
  transition: all var(--transition-base);
}
.site-header.scrolled {
  box-shadow: var(--shadow-lg);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.logo img {
  height: 46px;
  width: auto;
}
.logo span {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.main-nav a {
  position: relative;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--gray-700);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: var(--space-2) 0;
}
.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-fast);
}
.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--primary);
}

.nav-arrow {
  font-size: 10px;
  margin-left: var(--space-1);
  transition: transform var(--transition-fast);
}

/* ==================== Nav HOT Icon ==================== */
.nav-products-text {
  position: relative;
  display: inline-block;
}
.nav-hot-icon {
  width: 22px;
  height: 26px;
  flex-shrink: 0;
  margin-left: -8px;
  margin-top: -14px;
  vertical-align: top;
  display: inline-block;
}
.nav-hot-flame {
  fill: #E31E24;
  stroke: #FFD700;
  stroke-width: 3;
}
.nav-hot-inner {
  fill: #FF6B35;
  opacity: 0.6;
}

/* ==================== Nav Dropdown ==================== */
.nav-dropdown {
  position: relative;
}
.nav-dropdown::before {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 100px;
  z-index: 998;
}
.nav-dropdown-toggle {
  display: inline-flex !important;
  align-items: center;
  gap: var(--space-1);
  cursor: pointer;
}
.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2xl);
  border: 1px solid var(--gray-200);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
  transition-delay: 0.3s;
  z-index: 999;
  pointer-events: none;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown-toggle:focus + .nav-dropdown-menu,
.nav-dropdown-menu:focus-within {
  opacity: 1;
  visibility: visible;
  transform: translateY(var(--space-2));
  pointer-events: auto;
  transition-delay: 0s;
}
.nav-dropdown:hover .nav-arrow,
.nav-dropdown-toggle:focus .nav-arrow {
  transform: rotate(180deg);
}

/* Mega Menu — Full-Width */
.nav-mega-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  transform: translateY(8px);
  max-width: 100%;
  width: 100%;
  padding: var(--space-6) var(--space-8);
  box-shadow: 0 20px 50px -12px rgba(0, 0, 0, 0.2);
}
.nav-dropdown:hover .nav-mega-menu,
.nav-dropdown-toggle:focus + .nav-mega-menu {
  transform: translateY(var(--space-2));
}
.mega-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4) var(--space-6);
  max-height: 70vh;
  overflow-y: auto;
}
@media (min-width: 1200px) {
  .mega-inner {
    grid-template-columns: repeat(6, 1fr);
  }
}
.mega-col-title {
  font-family: var(--font-heading);
  display: block;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-3);
  border-bottom: 1px solid var(--gray-200);
}
.mega-col-title:hover {
  color: var(--accent-dark);
}
.mega-col-all {
  display: flex;
  align-items: center;
  justify-content: center;
  grid-column: 1 / -1;
  padding-top: var(--space-4);
  border-top: 1px solid var(--gray-100);
}
.mega-col-all .mega-col-title {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
  color: var(--accent-dark);
  font-size: var(--text-base);
}
.mega-products {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.mega-product {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
  text-decoration: none;
}
.mega-product:hover {
  background: var(--gray-50);
}
.mega-product-thumb {
  position: relative;
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--gray-100);
}
.mega-product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-fast);
}
.mega-product:hover .mega-product-thumb img {
  transform: scale(1.1);
}
.mega-product-placeholder {
  display: none;
}
.mega-product-thumb img[src=""],
.mega-product-thumb img:not([src]),
.mega-product-thumb img[src="#"] {
  display: none;
}
.mega-product-thumb img[src=""] ~ .mega-product-placeholder,
.mega-product-thumb img:not([src]) ~ .mega-product-placeholder {
  display: block;
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--gray-100), var(--gray-200));
}
.mega-product-name {
  font-size: var(--text-xs);
  color: var(--gray-700);
  font-weight: 500;
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
}
.mega-product:hover .mega-product-name {
  color: var(--primary);
}

/* Simple Dropdown (Articles) */
.nav-simple-dropdown {
  left: 0;
  min-width: 200px;
  padding: var(--space-3) 0;
}
.nav-dd-link {
  display: block !important;
  padding: var(--space-2) var(--space-5) !important;
  font-size: var(--text-sm) !important;
  color: var(--gray-700) !important;
  text-transform: none !important;
  letter-spacing: 0 !important;
  transition: background var(--transition-fast), color var(--transition-fast) !important;
}
.nav-dd-link::after {
  display: none !important;
}
.nav-dd-link:hover {
  background: var(--gray-50);
  color: var(--primary) !important;
}

/* ==================== Mobile Nav Panel ==================== */
.mobile-nav-overlay {
  display: none;
}
.mobile-nav-panel {
  display: none;
}

/* ==================== Header Actions ==================== */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.btn-contact {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: var(--accent-dark);
  color: var(--white);
  font-size: var(--text-sm);
  font-weight: 600;
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition:
    background 0.3s ease,
    color 0.3s ease,
    transform 0.3s ease,
    box-shadow 0.3s ease,
    border-color 0.3s ease;
  position: relative;
  overflow: hidden;
}
.btn-contact::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 0;
}
.btn-contact > * {
  position: relative;
  z-index: 1;
  color: inherit;
}
.btn-contact:hover {
  background: var(--accent);
  color: var(--white);
  transform: translateY(-2px) scale(1.04);
  box-shadow:
    0 6px 20px rgba(231, 76, 60, 0.4),
    0 2px 6px rgba(0, 0, 0, 0.15);
  border-color: var(--accent-light);
}
.btn-contact:hover::after {
  opacity: 1;
}
.btn-contact:active {
  transform: translateY(0) scale(0.97);
  box-shadow: 0 2px 8px rgba(231, 76, 60, 0.3);
  transition:
    transform 0.1s ease,
    box-shadow 0.1s ease;
}
.btn-contact:focus-visible {
  outline: 2px solid var(--primary-light);
  outline-offset: 3px;
}

/* ============================ Language Switcher ============================ */
.lang-switcher {
  position: relative;
  z-index: 100;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-full, 9999px);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--gray-700);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  min-height: 38px;
}

.lang-toggle:hover {
  border-color: var(--primary-light);
  color: var(--primary);
  box-shadow: 0 2px 8px rgba(26, 82, 118, 0.12);
}

.lang-toggle:focus-visible {
  outline: 2px solid var(--primary-light);
  outline-offset: 2px;
}

.lang-icon {
  display: inline-block;
  width: 16px;
  height: 16px;
  background: currentColor;
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M2 12h20M12 2a15.3 15.3 0 014 10 15.3 15.3 0 01-4 10 15.3 15.3 0 01-4-10 15.3 15.3 0 014-10z'/%3E%3C/svg%3E");
  mask-size: contain;
  mask-repeat: no-repeat;
  mask-position: center;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M2 12h20M12 2a15.3 15.3 0 014 10 15.3 15.3 0 01-4 10 15.3 15.3 0 01-4-10 15.3 15.3 0 014-10z'/%3E%3C/svg%3E");
  -webkit-mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
  flex-shrink: 0;
}

.lang-label {
  font-weight: 500;
}

.lang-arrow {
  font-size: 10px;
  transition: transform 0.2s ease;
  line-height: 1;
}

.lang-switcher.open .lang-arrow {
  transform: rotate(180deg);
}

/* Dropdown */
.lang-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 180px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg, 12px);
  box-shadow:
    0 10px 30px rgba(0, 0, 0, 0.12),
    0 4px 8px rgba(0, 0, 0, 0.06);
  padding: var(--space-2);
  list-style: none;
  margin: 0;
  z-index: 101;
}

.lang-switcher.open .lang-dropdown {
  display: block;
}

.lang-dropdown li {
  margin: 0;
  padding: 0;
}

.lang-option {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md, 8px);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--gray-700);
  text-decoration: none;
  transition: background 0.15s ease;
  cursor: pointer;
}

.lang-option:hover {
  background: var(--gray-100);
  color: var(--gray-900);
}

.lang-option.active {
  background: var(--info-light, #dbeafe);
  color: var(--primary);
  font-weight: 600;
}

.lang-option-check {
  font-size: var(--text-xs);
  color: var(--primary);
  opacity: 0;
  transition: opacity 0.15s ease;
}

.lang-option.active .lang-option-check {
  opacity: 1;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--space-2);
  background: none;
  border: none;
}
.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gray-700);
  transition: all var(--transition-fast);
  border-radius: 2px;
}

/* ============================ Hero Section ============================ */
.hero {
  position: relative;
  background: linear-gradient(
    135deg,
    var(--primary-dark) 0%,
    var(--primary) 50%,
    var(--primary-light) 100%
  );
  color: var(--white);
  padding: var(--space-20) 0;
  overflow: hidden;
  min-height: 520px;
  display: flex;
  align-items: center;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.3;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--white);
  margin-bottom: var(--space-6);
  line-height: 1.15;
}
.hero h1 span {
  color: var(--accent-light);
}
.hero p {
  font-size: var(--text-xl);
  opacity: 0.9;
  max-width: 650px;
  margin-bottom: var(--space-8);
}
.hero-stats {
  display: flex;
  gap: var(--space-12);
  margin-bottom: var(--space-10);
}
.hero-stat {
  text-align: center;
}
.hero-stat .number {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--accent-light);
}
.hero-stat .label {
  font-size: var(--text-sm);
  opacity: 0.8;
  margin-top: var(--space-1);
}

.hero-btns {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--accent-dark);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.btn-primary::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.18), transparent);
  transform: skewX(-20deg);
  transition: left 1.2s ease;
}
.btn-primary:hover::after {
  left: 150%;
}
.btn-primary:hover {
  background: var(--accent);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.4);
}
.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
}
.btn-outline-dark {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline-dark:hover {
  background: var(--primary);
  color: var(--white);
}
.btn-sm {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
}

/* ============================ Category Nav ============================ */
.category-nav {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  padding: var(--space-4) 0;
}
.category-nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  transition: gap 0.2s ease;
}
.cat-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--gray-600);
  white-space: nowrap;
  transition: all 0.2s ease;
  cursor: pointer;
  background: var(--white);
  text-decoration: none;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.cat-chip:hover {
  border-color: var(--primary);
  background: var(--primary);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(26, 82, 118, 0.2);
}
.cat-chip.active {
  border-color: var(--primary);
  background: var(--primary);
  color: var(--white);
}
.cat-chip .count {
  font-size: var(--text-xs);
  background: var(--gray-200);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}
.cat-chip:hover .count,
.cat-chip.active .count {
  background: rgba(255, 255, 255, 0.3);
}

/* Tablet: slightly smaller chips */
@media (max-width: 1024px) {
  .category-nav-inner {
    padding: 0 var(--space-5);
    gap: var(--space-2);
  }
  .cat-chip {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
  }
}

/* Mobile: grid layout */
@media (max-width: 768px) {
  .category-nav-inner {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    padding: 0 var(--space-4);
    gap: var(--space-2);
  }
  .cat-chip {
    justify-content: center;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    width: 100%;
  }
}

/* Small mobile: single column */
@media (max-width: 480px) {
  .category-nav-inner {
    grid-template-columns: 1fr;
  }
}

/* ============================ Product Grid ============================ */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
  padding: var(--space-12) 0;
}
.product-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  transition: all var(--transition-base);
  position: relative;
  cursor: pointer;
  height: 100%;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--gray-300);
}

.product-card:hover .product-card-image img {
  transform: scale(1.06);
}
.product-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: transform var(--transition-base);
  z-index: 2;
}
.product-card:hover::after {
  transform: scaleX(1);
}
.product-card-image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--gray-50);
  flex-shrink: 0;
}
.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform var(--transition-slow);
}

.product-card-badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-1) var(--space-3);
  background: var(--accent-dark);
  color: var(--white);
  font-size: var(--text-xs);
  font-weight: 700;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.product-card-body {
  padding: var(--space-5);
  flex: 1;
  display: flex;
  flex-direction: column;
}
.product-card-category {
  font-size: var(--text-xs);
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-2);
}
.product-card-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--space-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.product-card-desc {
  font-size: var(--text-sm);
  color: var(--gray-500);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-4);
}
.product-card-apps {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}
.product-card-app-tag {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: var(--info-light);
  color: var(--primary);
  line-height: 1.5;
  white-space: nowrap;
}
.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: 1px solid var(--gray-100);
  margin-top: auto;
}
.product-card-tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.tag {
  padding: 2px 8px;
  background: var(--gray-100);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--gray-600);
}
.product-card-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: var(--space-2) var(--space-4);
  background: var(--primary);
  color: var(--white);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  border: none;
  cursor: pointer;
}
.product-card-btn:hover {
  background: var(--primary-dark);
  color: var(--white);
}

/* ============================ Articles ============================ */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  font-size: var(--text-sm);
  color: var(--gray-600);
}
.breadcrumb a {
  color: var(--gray-600);
  text-decoration: none;
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb span {
  color: var(--gray-300);
}
.breadcrumb strong {
  color: var(--gray-700);
  font-weight: 600;
}

.articles-header {
  text-align: center;
  padding: var(--space-12) 0 var(--space-6);
}
.articles-header h1 {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--gray-900);
}
.articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
  margin: var(--space-8) 0;
}
.article-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
}
.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--gray-300);
}
.article-card-image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--gray-100);
}
.article-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.article-card:hover .article-card-image img {
  transform: scale(1.05);
}
.article-card-body {
  padding: var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
}
.article-card-meta {
  display: flex;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--gray-600);
  margin-bottom: var(--space-3);
}
.article-card-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--space-3);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-card-excerpt {
  font-size: var(--text-sm);
  color: var(--gray-500);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Article Detail (non-product) */
.article-detail {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-4);
}
.article-detail h1 {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--gray-900);
  line-height: 1.3;
  margin-bottom: var(--space-4);
}
.article-featured-image {
  margin-bottom: var(--space-6);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.article-featured-image img {
  width: 100%;
  height: auto;
  display: block;
}
.article-category-badge {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
  text-decoration: none;
}
.article-category-badge:hover {
  background: var(--primary);
  color: var(--white);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: var(--gray-500);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--gray-200);
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}
.article-content {
  font-size: var(--text-base);
  line-height: 1.85;
  color: var(--gray-800);
}
.article-content h2 {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--gray-900);
  margin: var(--space-8) 0 var(--space-4);
}
.article-content h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--gray-900);
  margin: var(--space-6) 0 var(--space-3);
}
.article-content p {
  margin-bottom: var(--space-5);
}
.article-content ul, .article-content ol {
  margin: var(--space-4) 0;
  padding-left: var(--space-6);
}
.article-content li {
  margin-bottom: var(--space-2);
}
.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--primary-light);
  margin: var(--space-6) 0;
  padding: var(--space-4) var(--space-6);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--gray-700);
  font-style: italic;
}
.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  margin: var(--space-4) 0;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-6) 0;
}
.article-content th, .article-content td {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--gray-200);
  text-align: left;
}
.article-content th {
  background: var(--gray-50);
  font-weight: 700;
  color: var(--gray-900);
}
.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.article-content a:hover {
  color: var(--primary-hover);
}

/* Comments Section */
.comments-section {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-4);
}
.comments-section h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.comment-item {
  padding: var(--space-4);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-3);
}
.comment-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2);
}
.comment-author {
  font-weight: 700;
  color: var(--gray-900);
  font-size: var(--text-sm);
}
.comment-date {
  font-size: var(--text-xs);
  color: var(--gray-400);
}
.comment-content {
  font-size: var(--text-sm);
  color: var(--gray-700);
  line-height: 1.6;
}
.comment-form {
  margin-top: var(--space-8);
  padding: var(--space-6);
  background: var(--gray-50);
  border-radius: var(--radius-xl);
}

/* Pagination */
.pagination {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-8) 0;
}
.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-700);
  transition: all var(--transition-fast);
}
.pagination a:hover {
  background: var(--gray-50);
  border-color: var(--gray-300);
}
.pagination span.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}
.pagination span.disabled {
  color: var(--gray-300);
  border-color: var(--gray-100);
  background: var(--gray-50);
  cursor: not-allowed;
}

/* ============================ Product Detail ============================ */
.product-detail {
  padding: var(--space-12) 0;
}
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}
.product-gallery {
  position: sticky;
  top: calc(var(--header-height) + var(--space-6));
}
.gallery-main {
  aspect-ratio: 1;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--gray-100);
  margin-bottom: var(--space-4);
}
.gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--transition-fast);
}
.gallery-thumbs {
  display: flex;
  gap: var(--space-3);
  overflow-x: auto;
}
.gallery-thumb {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}
.gallery-thumb.active {
  border-color: var(--primary);
}
.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-info h1 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-4);
}
.product-meta {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}
.product-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  color: var(--gray-600);
}
.product-description {
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: var(--space-8);
}
.product-specs {
  margin-bottom: var(--space-8);
}
.product-specs h3 {
  margin-bottom: var(--space-4);
}
.spec-table {
  width: 100%;
  border-collapse: collapse;
}
.spec-table tr {
  border-bottom: 1px solid var(--gray-200);
}
.spec-table tr:last-child {
  border-bottom: none;
}
.spec-table td {
  padding: var(--space-3) var(--space-4);
}
.spec-table td:first-child {
  font-weight: 600;
  color: var(--gray-700);
  width: 160px;
  background: var(--gray-50);
}
.spec-table td:last-child {
  color: var(--gray-600);
}

/* Contact Grid */
.contact-grid {
  gap: var(--space-12);
}

.inquiry-box {
  background: var(--gray-50);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  border: 1px solid var(--gray-200);
}
.inquiry-box h3 {
  margin-bottom: var(--space-6);
}

/* ============================ Forms ============================ */
.form-group {
  margin-bottom: var(--space-4);
}
.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: var(--space-2);
}
.form-label .required {
  color: var(--danger);
}
.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-family: var(--font-sans);
  color: var(--gray-800);
  background: var(--white);
  transition: all var(--transition-fast);
}
.form-input:focus {
  outline: none;
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(41, 128, 185, 0.1);
}
.form-input::placeholder {
  color: var(--gray-400);
}
.form-textarea {
  resize: vertical;
  min-height: 120px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
.form-error {
  font-size: var(--text-xs);
  color: var(--danger);
  margin-top: var(--space-1);
  display: none;
}
.form-group.error .form-input {
  border-color: var(--danger);
}
.form-group.error .form-error {
  display: block;
}

/* ============================ Inquiry Form Button States ============================ */
@keyframes btn-spin {
  to { transform: rotate(360deg); }
}

.btn--loading {
  pointer-events: none;
  opacity: 0.85;
  padding-right: 40px !important;
  position: relative;
  overflow: visible !important;
}
.btn--loading::after {
  content: '';
  position: absolute;
  right: 14px;
  top: 50%;
  width: 16px;
  height: 16px;
  margin-top: -8px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: btn-spin 0.6s linear infinite;
}

.btn--success {
  background: var(--success) !important;
  border-color: var(--success) !important;
  transition: background var(--transition-base), border-color var(--transition-base);
  pointer-events: none;
}

.btn--error {
  background: var(--danger) !important;
  border-color: var(--danger) !important;
  transition: background var(--transition-base), border-color var(--transition-base);
}

/* ============================ Trust Section ============================ */
.trust-section {
  padding: var(--space-8) 0;
  background: var(--white);
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}
.trust-card {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  background: var(--white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  cursor: default;
}
.trust-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}
.trust-card-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-5);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: var(--white);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}
.trust-card-icon svg {
  width: 32px;
  height: 32px;
  stroke: currentColor;
}
.trust-card-hd {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--space-3);
  line-height: 1.3;
}
.trust-card-sub {
  font-size: var(--text-sm);
  color: var(--gray-500);
  line-height: 1.6;
  max-width: 260px;
  margin: 0 auto;
}

/* ============================ Leadership Section ============================ */
.leadership {
  padding: var(--space-16) 0;
  background: var(--white);
}
.leadership-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}
.leadership-content h2 {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--space-4);
}
.leadership-content p {
  color: var(--gray-600);
  font-size: var(--text-base);
  line-height: 1.8;
  margin-bottom: var(--space-4);
}
.leadership-highlights {
  display: flex;
  gap: var(--space-6);
  margin: var(--space-6) 0;
}
.lh-item {
  text-align: center;
}
.lh-num {
  display: block;
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--primary);
}
.lh-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--gray-500);
  margin-top: var(--space-1);
}
.leadership-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.leadership-image img {
  width: 100%;
  height: auto;
  display: block;
}
.leadership-image video {
  width: 100%;
  height: auto;
  display: block;
}

/* ============================ Quality Section ============================ */
.quality-section {
  padding: var(--space-20) 0;
  background: var(--gray-50);
}
.quality-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}
.quality-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  border-top: 3px solid var(--primary);
  transition: all var(--transition-base);
}
.quality-card:nth-child(2) {
  border-top-color: var(--success);
}
.quality-card:nth-child(3) {
  border-top-color: var(--warning);
}
.quality-card:nth-child(4) {
  border-top-color: var(--info);
}
.quality-card:nth-child(5) {
  border-top-color: var(--primary);
}
.quality-card:nth-child(6) {
  border-top-color: var(--success);
}
.quality-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.qc-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--gray-100);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--gray-600);
  margin-bottom: var(--space-3);
}
.quality-card h3,
.quality-card h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--space-2);
}
.quality-card p {
  font-size: var(--text-xs);
  color: var(--gray-500);
  line-height: 1.6;
}
.quality-results {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  background: var(--primary);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-align: center;
  color: var(--white);
}
.qr-num {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--white);
}

/* ========================== Product Detail Hero ========================== */
.pd-hero {
  padding: var(--space-8) 0 var(--space-12);
  background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}
.pd-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}
.pd-summary {
  min-width: 0;
}

.pd-sku {
  font-size: var(--text-xs);
  letter-spacing: 1.5px;
  color: var(--primary-light);
  background: rgba(41, 128, 185, 0.08);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}
.pd-title {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--gray-900);
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: var(--space-3);
}
.pd-excerpt {
  font-size: var(--text-lg);
  color: var(--gray-500);
  line-height: 1.6;
  margin-bottom: var(--space-6);
}

.pd-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}
.pd-hl-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100);
}
.pd-hl-icon {
  font-size: var(--text-xl);
  flex-shrink: 0;
  margin-top: 2px;
}
.pd-hl-icon img {
  display: inline;
  vertical-align: -2px;
}
.pd-hl-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gray-400);
}
.pd-hl-value {
  display: block;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--gray-800);
}

.pd-actions {
  display: flex;
  gap: var(--space-3);
}
.pd-price-notice {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  padding: var(--space-2) var(--space-3);
  background: var(--gray-50);
  border-left: 3px solid var(--gray-300);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: var(--text-xs);
  color: var(--gray-500);
  line-height: 1.5;
}
.pd-price-notice-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-200);
  color: var(--gray-500);
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: 700;
  font-style: normal;
}
.pd-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--white);
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border: none;
  border-radius: var(--radius-xl);
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(26, 82, 118, 0.3);
  transition: all var(--transition-fast);
}
.pd-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 25px rgba(26, 82, 118, 0.4);
  color: var(--white);
}
.pd-btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--primary);
  background: var(--white);
  border: 2px solid var(--primary);
  border-radius: var(--radius-xl);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
}
.pd-btn-outline:hover {
  background: var(--primary);
  color: var(--white);
}

/* ========================== Product Gallery ========================== */
.pd-gallery {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 100%;
}
.pd-gallery-main {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
}
.pd-gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: opacity var(--transition-fast);
}
.pd-gallery-thumbs {
  display: flex;
  gap: var(--space-3);
  overflow-x: auto;
  padding: var(--space-2) 0;
  scrollbar-width: none;
}
.pd-gallery-thumbs::-webkit-scrollbar {
  display: none;
}
.pd-thumb {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
}
.pd-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.pd-thumb.active {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(26, 82, 118, 0.1);
}
.pd-thumb:hover {
  border-color: var(--primary-light);
  transform: translateY(-2px);
}
.pd-thumb-video {
  position: relative;
}
.pd-thumb-video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.pd-thumb-video-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.35);
  color: var(--white);
  font-size: var(--text-lg);
  pointer-events: none;
  border-radius: var(--radius-md);
}
.pd-gallery-main video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--gray-900);
}

/* ========================== Gallery Arrows ========================== */
.pd-gallery-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.92);
  color: var(--gray-700);
  cursor: pointer;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  opacity: 0;
  outline: none;
  -webkit-tap-highlight-color: transparent;
}
.pd-gallery-arrow:focus-visible {
  opacity: 1;
  box-shadow: 0 0 0 3px rgba(26, 82, 118, 0.25);
}
.pd-gallery-main:hover .pd-gallery-arrow,
.pd-gallery-arrow:focus-visible {
  opacity: 1;
}
.pd-gallery-arrow:hover {
  background: var(--white);
  border-color: var(--primary-light);
  color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-50%) scale(1.08);
}
.pd-gallery-arrow:active {
  transform: translateY(-50%) scale(0.95);
}
.pd-gallery-arrow--prev {
  left: var(--space-3);
}
.pd-gallery-arrow--next {
  right: var(--space-3);
}

/* Gallery counter / indicator dots */
.pd-gallery-counter {
  position: absolute;
  bottom: var(--space-3);
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0;
  pointer-events: none;
}
.pd-gallery-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--gray-300);
  transition: all var(--transition-base);
}
.pd-gallery-dot.active {
  background: var(--primary);
  width: 10px;
  height: 10px;
}

/* Touch device: always show arrows with slightly reduced opacity */
@media (hover: none) and (pointer: coarse) {
  .pd-gallery-arrow {
    opacity: 0.75;
  }
}

/* Tablet / Small desktop */
@media (max-width: 1024px) {
  .pd-gallery-arrow {
    width: 40px;
    height: 40px;
  }
  .pd-gallery-arrow svg {
    width: 18px;
    height: 18px;
  }
}

/* Mobile: increase counter dot spacing from bottom edge */
@media (max-width: 640px) {
  .pd-gallery-counter {
    bottom: var(--space-4);
  }
  .pd-gallery-dot {
    width: 7px;
    height: 7px;
  }
  .pd-gallery-dot.active {
    width: 9px;
    height: 9px;
  }
}

/* ========================== Custom Video Player Controls ========================== */
.pd-video-player {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.pd-video-player video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}

.pd-video-controls {
  position: absolute;
  bottom: 12px;
  left: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 5;
  padding: 6px;
  border-radius: var(--radius-lg);
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  transform: translateY(6px);
  transition:
    opacity 0.25s ease,
    transform 0.25s ease;
}
.pd-video-player:hover .pd-video-controls,
.pd-video-player:focus-within .pd-video-controls,
.pd-video-controls.pd-vc-sticky {
  opacity: 1;
  transform: translateY(0);
}

.pd-vc-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.92);
  color: var(--gray-800);
  transition: all 0.2s ease;
  flex-shrink: 0;
  outline: none;
  position: relative;
}
.pd-vc-btn:hover {
  background: var(--white);
  transform: scale(1.08);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  color: var(--primary);
}
.pd-vc-btn:active {
  transform: scale(0.94);
  transition: transform 0.08s ease;
}
.pd-vc-btn:focus-visible {
  box-shadow:
    0 0 0 3px rgba(26, 82, 118, 0.5),
    0 4px 14px rgba(0, 0, 0, 0.2);
}

.pd-vc-icon {
  display: block;
  width: 24px;
  height: 24px;
  transition: opacity 0.15s ease;
}

/* Play/Pause icon toggle */
.pd-vc-play-pause .pd-vc-icon-pause {
  display: none;
}
.pd-vc-play-pause .pd-vc-icon-play {
  display: block;
}
.pd-vc-play-pause.pd-vc-is-playing .pd-vc-icon-play {
  display: none;
}
.pd-vc-play-pause.pd-vc-is-playing .pd-vc-icon-pause {
  display: block;
}

/* Replay button — hidden until video ends */
.pd-vc-replay {
  opacity: 0;
  transform: scale(0.8);
  pointer-events: none;
  transition: all 0.25s ease;
}
.pd-vc-replay.pd-vc-is-visible {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}
.pd-vc-replay:hover {
  color: var(--accent);
}

/* Unsupported overlay */
.pd-video-unsupported {
  padding: var(--space-3) var(--space-4);
  margin-top: var(--space-2);
  background: #fef3c7;
  border: 1px solid #f59e0b;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: #92400e;
  text-align: center;
}
.pd-video-unsupported a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 576px) {
  .pd-vc-btn {
    width: 40px;
    height: 40px;
  }
  .pd-vc-icon {
    width: 20px;
    height: 20px;
  }
  .pd-video-controls {
    bottom: 8px;
    left: 8px;
    gap: 6px;
    padding: 4px;
  }
}

/* ========================== Anchor nav bar ========================== */
.pd-anchor-bar {
  position: sticky;
  top: -1px;
  z-index: 50;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  transition: box-shadow var(--transition-fast);
}
.pd-anchor-bar.pd-anchor-stuck {
  box-shadow: var(--shadow-md);
}
.pd-anchors {
  display: flex;
  gap: var(--space-1);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.pd-anchors::-webkit-scrollbar {
  display: none;
}
.pd-anchor {
  flex-shrink: 0;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--gray-500);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.pd-anchor:hover {
  color: var(--gray-800);
  background: var(--gray-100);
}
.pd-anchor--active {
  color: var(--primary);
  background: rgba(26, 82, 118, 0.06);
}
.pd-anchor-cta {
  color: var(--white);
  background: var(--primary);
  font-weight: 700;
  padding: var(--space-3) var(--space-6);
}
.pd-anchor-cta:hover {
  color: var(--white);
  background: var(--primary-dark);
}

/* ========================== Body & Layout ========================== */
.pd-body {
  padding: var(--space-8) 0 var(--space-16);
}
.pd-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: var(--space-10);
  align-items: start;
}
.pd-primary {
  min-width: 0;
}

/* ========================== Section ========================== */
.pd-section {
  padding: var(--space-10) 0;
  border-bottom: 1px solid var(--gray-100);
}
.pd-section:first-of-type {
  padding-top: 0;
}
.pd-section:last-of-type {
  border-bottom: none;
}
.pd-section-hd {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.pd-section-hd img {
  display: inline;
  flex-shrink: 0;
  vertical-align: -2px;
}

.pd-muted {
  padding: var(--space-8);
  text-align: center;
  color: var(--gray-400);
  font-size: var(--text-sm);
}

/* ========================== KV list ========================== */
.pd-kv-list {
  width: 100%;
}
.pd-kv-row {
  display: flex;
  align-items: baseline;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--gray-100);
  font-size: var(--text-sm);
  line-height: 1.6;
}
.pd-kv-row:last-child {
  border-bottom: none;
}
.pd-kv-row dt {
  flex-shrink: 0;
  width: 200px;
  padding-right: var(--space-8);
  font-weight: 600;
  color: var(--gray-500);
  text-transform: capitalize;
  word-break: break-word;
}
.pd-kv-row dd {
  flex: 1;
  min-width: 0;
  font-weight: 700;
  color: var(--gray-800);
  word-break: break-word;
}

/* ========================== Description ========================== */
.pd-desc {
  color: var(--gray-600);
  line-height: 1.85;
  font-size: var(--text-base);
}
.pd-desc p {
  margin-bottom: var(--space-4);
}
.pd-desc img {
  border-radius: var(--radius-lg);
  margin: var(--space-6) 0;
}

.pd-note {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--gray-400);
  font-style: italic;
}

/* ========================== Custom cards ========================== */
.pd-custom-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-4);
}
.pd-custom-card {
  padding: var(--space-5);
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  text-align: center;
  transition: all var(--transition-fast);
}
.pd-custom-card:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.pd-custom-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: var(--space-2);
}
.pd-custom-icon img {
  display: inline;
  vertical-align: -2px;
}
.pd-custom-card h4 {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: var(--space-1);
}
.pd-custom-card p {
  font-size: var(--text-xs);
  color: var(--gray-500);
  line-height: 1.5;
}

/* ========================== Comments ========================== */
.pd-comments {
  margin-bottom: var(--space-6);
}
.pd-comment {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--gray-100);
}
.pd-comment:last-child {
  border-bottom: none;
}
.pd-comment-avatar {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
  color: var(--white);
  font-weight: 700;
  font-size: var(--text-base);
  display: flex;
  align-items: center;
  justify-content: center;
}
.pd-comment-body {
  flex: 1;
  min-width: 0;
}
.pd-comment-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--space-1);
}
.pd-comment-header strong {
  color: var(--gray-800);
  font-size: var(--text-sm);
}
.pd-comment-header span {
  font-size: var(--text-xs);
  color: var(--gray-400);
}
.pd-comment-body p {
  color: var(--gray-600);
  line-height: 1.7;
  font-size: var(--text-sm);
}

.pd-review-form {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  margin-top: var(--space-6);
}
.pd-review-form h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-4);
}

/* ========================== Sidebar ========================== */
.pd-aside {
  position: relative;
}
.pd-inquiry-sticky {
}
.pd-inquiry-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
}
.pd-inquiry-card h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-1);
}
.pd-inquiry-sub {
  font-size: var(--text-sm);
  color: var(--gray-400);
  margin-bottom: var(--space-4);
}
.pd-inquiry-card .form-group {
  margin-bottom: var(--space-3);
}
.pd-inquiry-card .form-input {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
}
.pd-inquiry-card .form-input:focus {
  background: var(--white);
  border-color: var(--primary-light);
}

/* ========================== Related ========================== */
.pd-related {
  padding: var(--space-12) 0;
  background: var(--gray-50);
}

/* ============================ Responsive ============================ */
@media (max-width: 1024px) {
  .product-detail-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .pd-layout {
    grid-template-columns: 1fr;
  }
  .pd-hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
  .articles-grid {
    grid-template-columns: 1fr;
  }
  .leadership-grid,
  .global-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .leadership-image {
    max-width: 500px;
    margin: 0 auto;
  }
  .global-map {
    min-height: 220px;
  }
  .global-features {
    grid-template-columns: repeat(2, 1fr);
  }
  .global-regions {
    grid-template-columns: repeat(2, 1fr);
  }
  .certs-strip {
    gap: var(--space-6);
  }
  .certs-item img {
    width: 120px;
    height: 120px;
  }
  .cookie-bar-inner {
    padding: var(--space-3) var(--space-5);
  }
  .cookie-bar-content p {
    font-size: 11px;
  }
}
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .logo img {
    height: 42px;
  }

  /* Hide desktop nav & dropdowns on mobile */
  .main-nav {
    display: none !important;
  }
  .main-nav.open {
    display: none !important;
  }

  /* Show mobile menu button */
  .mobile-menu-btn {
    display: flex;
  }

  /* Hamburger animation */
  .mobile-menu-btn.active .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .mobile-menu-btn.active .hamburger-line:nth-child(2) {
    opacity: 0;
  }
  .mobile-menu-btn.active .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* Mobile nav overlay */
  .mobile-nav-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }
  .mobile-nav-overlay.open {
    opacity: 1;
    visibility: visible;
  }

  /* Mobile nav panel */
  .mobile-nav-panel {
    display: block;
    position: fixed;
    top: 0;
    right: 0;
    width: 85vw;
    max-width: 380px;
    height: 100vh;
    height: 100dvh;
    background: var(--white);
    z-index: 1002;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    box-shadow: -8px 0 30px rgba(0, 0, 0, 0.15);
  }
  .mobile-nav-panel.open {
    transform: translateX(0);
  }

  /* Mobile nav inner */
  .mobile-nav-inner {
    padding: var(--space-4) 0 var(--space-10);
  }
  .mobile-nav-inner .mobile-nav-link {
    display: block;
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--gray-800);
    text-decoration: none;
    border-bottom: 1px solid var(--gray-100);
    transition: background var(--transition-fast);
    cursor: pointer;
  }
  .mobile-nav-inner .mobile-nav-link:hover,
  .mobile-nav-inner .mobile-nav-link.active {
    background: var(--gray-50);
    color: var(--primary);
  }
  .mobile-nav-link.mobile-nav-link--all {
    font-weight: 700;
    color: var(--primary);
  }
  .mobile-nav-link.mobile-nav-link--cat {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--gray-700);
    padding-left: var(--space-8);
  }
  .mobile-nav-products {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-6) var(--space-2) var(--space-10);
  }
  .mobile-nav-product {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: background var(--transition-fast);
  }
  .mobile-nav-product:hover {
    background: var(--gray-50);
  }
  .mobile-nav-product img {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    background: var(--gray-100);
  }
  .mobile-nav-product span {
    font-size: var(--text-xs);
    color: var(--gray-700);
    font-weight: 500;
  }

  /* Mobile nav group — expandable */
  .mobile-nav-group {
    border-bottom: 1px solid var(--gray-100);
  }
  .mobile-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--gray-800);
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    text-align: left;
    -webkit-tap-highlight-color: transparent;
    transition: background var(--transition-fast);
  }
  .mobile-nav-toggle:hover {
    background: var(--gray-50);
  }
  .mobile-nav-toggle-icon {
    font-size: var(--text-sm);
    transition: transform 0.25s ease;
    display: inline-block;
  }
  .mobile-nav-toggle[aria-expanded="true"] .mobile-nav-toggle-icon {
    transform: rotate(90deg);
  }

  /* Mobile HOT icon sizing */
  .nav-hot-icon--mobile {
    width: 18px;
    height: 22px;
    margin-left: -6px;
    margin-right: auto;
    margin-top: -10px;
    vertical-align: top;
  }

  .mobile-nav-sub {
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.35s ease;
  }
  .mobile-nav-subgroup {
    border-top: 1px solid var(--gray-50);
  }

  /* Mobile — hide header CTA button */
  .btn-contact {
    display: none !important;
  }
  .btn-contact {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
    min-width: 76px;
    min-height: 36px;
  }
  .btn-contact:hover {
    transform: translateY(-1px) scale(1.03);
    box-shadow:
      0 4px 14px rgba(231, 76, 60, 0.35),
      0 1px 4px rgba(0, 0, 0, 0.12);
  }
  .hero {
    padding: var(--space-12) 0;
    min-height: auto;
  }
  .hero h1 {
    font-size: var(--text-3xl);
  }
  .hero-stats {
    gap: var(--space-6);
  }
  .product-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: var(--space-4);
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .article-detail h1 {
    font-size: var(--text-2xl);
  }
  .spec-table td:first-child {
    width: 120px;
  }

  .pd-hero-grid {
    grid-template-columns: 1fr;
  }
  .pd-gallery {
    position: static;
    max-width: 100%;
    min-width: 0;
  }
  .pd-title {
    font-size: var(--text-2xl);
  }
  .pd-actions {
    flex-direction: column;
  }
  .pd-actions .pd-btn-primary,
  .pd-actions .pd-btn-outline {
    width: 100%;
    text-align: center;
    justify-content: center;
  }
  .pd-highlights {
    grid-template-columns: 1fr 1fr;
  }
  .pd-section {
    padding: var(--space-6) 0;
  }
  .pd-kv-row dt {
    width: 140px;
  }

  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }
  .leadership-highlights {
    gap: var(--space-4);
  }
  .lh-num {
    font-size: var(--text-xl);
  }
  .quality-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  }
  .quality-results {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }
  .certs-item img {
    width: 100px;
    height: 100px;
  }

  .articles-header {
    padding: var(--space-8) 0 var(--space-4);
  }
  .articles-header h1 {
    font-size: var(--text-2xl);
  }
  .article-card-title {
    font-size: var(--text-base);
  }
  .article-card-excerpt {
    font-size: var(--text-xs);
    -webkit-line-clamp: 2;
    line-clamp: 2;
  }
  .article-card-body {
    padding: var(--space-4);
  }
  .article-card-meta {
    font-size: 11px;
    gap: var(--space-2);
  }

  .global-section {
    padding: var(--space-12) 0;
  }
  .global-grid {
    gap: var(--space-8);
  }
  .global-text h2 {
    font-size: var(--text-2xl);
  }
  .global-lead {
    font-size: var(--text-sm);
    margin-bottom: var(--space-6);
  }
  .global-features {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  .global-regions {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }
  .global-region {
    padding: var(--space-3);
  }
  .global-feature {
    padding: var(--space-4);
  }
  .global-feature-icon {
    width: 40px;
    height: 40px;
  }
  .global-feature-icon svg {
    width: 20px;
    height: 20px;
  }
  .global-feature h3,
  .global-feature h4 {
    font-size: var(--text-sm);
  }
  .global-feature p {
    font-size: var(--text-xs);
  }
  .global-closing {
    font-size: var(--text-sm);
    padding: var(--space-3) var(--space-4);
  }
}
@media (max-width: 480px) {
  .logo img {
    height: 38px;
  }

  .product-grid {
    grid-template-columns: 1fr;
  }
  .container {
    padding: 0 var(--space-4);
  }
  .hero-btns {
    flex-direction: column;
  }
  .hero-stat .number {
    font-size: var(--text-2xl);
  }
  .gallery-thumb {
    width: 60px;
    height: 60px;
  }
  .inquiry-box {
    padding: var(--space-6);
  }

  .pd-title {
    font-size: var(--text-xl);
  }
  .pd-highlights {
    grid-template-columns: 1fr;
  }
  .pd-specs-grid {
    grid-template-columns: 1fr;
  }
  .pd-custom-cards {
    grid-template-columns: 1fr;
  }
  .pd-anchor {
    font-size: var(--text-xs);
    padding: var(--space-2) var(--space-3);
  }
  .pd-section-hd {
    font-size: var(--text-lg);
  }
  .pd-kv-row {
    flex-direction: column;
  }
  .pd-gallery-thumbs {
    gap: var(--space-2);
  }
  .pd-thumb {
    width: 60px;
    height: 60px;
  }
  .pd-kv-row dt {
    width: 100%;
    margin-bottom: var(--space-1);
  }
  .about-why-grid,
  .about-exhibition-grid {
    grid-template-columns: 1fr !important;
  }

  .trust-grid {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  .quality-grid {
    grid-template-columns: 1fr;
  }
  .quality-results {
    grid-template-columns: repeat(2, 1fr);
  }
  .certs-strip {
    gap: var(--space-4);
  }
  .global-map {
    min-height: 160px;
  }
  .global-features {
    grid-template-columns: 1fr;
  }
  .global-regions {
    grid-template-columns: 1fr;
  }

  .articles-header {
    padding: var(--space-6) 0 var(--space-3);
  }
  .articles-header h1 {
    font-size: var(--text-xl);
  }
  .article-card-title {
    font-size: var(--text-sm);
    -webkit-line-clamp: 2;
    line-clamp: 2;
  }
  .article-card-excerpt {
    font-size: 11px;
    -webkit-line-clamp: 2;
    line-clamp: 2;
  }
  .article-card-body {
    padding: var(--space-3);
  }
  .article-card-meta {
    font-size: 10px;
  }

  .global-section {
    padding: var(--space-8) 0;
  }
  .global-grid {
    gap: var(--space-6);
  }
  .global-text h2 {
    font-size: var(--text-xl);
  }
  .global-lead {
    font-size: var(--text-xs);
    margin-bottom: var(--space-5);
  }
  .global-feature {
    padding: var(--space-3) var(--space-4);
  }
  .global-feature-icon {
    width: 36px;
    height: 36px;
    margin-bottom: var(--space-3);
  }
  .global-feature-icon svg {
    width: 18px;
    height: 18px;
  }
  .global-feature h3,
  .global-feature h4 {
    font-size: var(--text-xs);
  }
  .global-feature p {
    font-size: 10px;
  }
  .global-closing {
    font-size: var(--text-xs);
    padding: var(--space-2) var(--space-3);
  }
  .global-region-label {
    font-size: 10px;
  }
  .global-region-countries {
    font-size: 10px;
  }
}

/* ============================ FAQ & Support Page ============================ */
.faq-hero {
  text-align: center;
  padding: var(--space-8) 0 var(--space-4);
}
.faq-hero-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  border-radius: var(--radius-2xl);
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white);
  margin-bottom: var(--space-4);
  box-shadow: 0 8px 24px rgba(26, 82, 118, 0.25);
}
.faq-hero-icon svg {
  width: 36px;
  height: 36px;
  stroke: var(--white);
}
.faq-hero h1 {
  font-size: var(--text-4xl);
  font-weight: 800;
  margin-bottom: var(--space-3);
}
.faq-hero p {
  font-size: var(--text-lg);
  color: var(--gray-500);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Contact info inline icons */
.contact-icon {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.contact-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--primary);
  flex-shrink: 0;
}

.star-rating {
  display: inline-flex;
  gap: var(--space-1);
}
.star-rating svg {
  width: 20px;
  height: 20px;
  fill: var(--warning);
  stroke: none;
}

.avatar-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.avatar-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--white);
}

.about-why-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.about-why-icon svg {
  width: 40px;
  height: 40px;
}

/* Category tabs */
.faq-categories {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-6);
}
.faq-cat-btn {
  padding: var(--space-2) var(--space-5);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-full);
  background: var(--white);
  color: var(--gray-600);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
}
.faq-cat-btn svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  vertical-align: -3px;
  margin-right: var(--space-1);
}
.faq-cat-btn:hover {
  border-color: var(--primary-light);
  color: var(--primary);
  background: rgba(26, 82, 118, 0.04);
}
.faq-cat-btn.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

/* FAQ accordion */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.faq-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--white);
  transition: all var(--transition-base);
}
.faq-item:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-sm);
}
.faq-item[open] {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
}
.faq-item-header {
  padding: var(--space-5) var(--space-6);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  user-select: none;
  transition: background var(--transition-fast);
}
.faq-item-header::-webkit-details-marker {
  display: none;
}
.faq-item-header:hover {
  background: var(--gray-50);
}
.faq-item-cat {
  flex-shrink: 0;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 3px;
}
.faq-item-cat--product {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
}
.faq-item-cat--shipping {
  background: rgba(59, 130, 246, 0.1);
  color: var(--info);
}
.faq-item-cat--payment {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
}
.faq-item-cat--quality {
  background: rgba(139, 92, 246, 0.1);
  color: #8b5cf6;
}
.faq-item-cat--order {
  background: rgba(236, 72, 153, 0.1);
  color: #ec4899;
}

.faq-item-text {
  flex: 1;
  min-width: 0;
}
.faq-item-q {
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--gray-900);
  line-height: 1.5;
}
.faq-item-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
  color: var(--gray-400);
  transition: all var(--transition-fast);
  margin-top: 2px;
}
.faq-item[open] .faq-item-icon {
  background: var(--primary);
  color: var(--white);
  transform: rotate(45deg);
}
.faq-item-body {
  padding: 0 var(--space-6) var(--space-5);
  margin-left: calc(var(--space-4) + 58px);
  color: var(--gray-600);
  font-size: var(--text-sm);
  line-height: 1.8;
}
.faq-item-body a {
  color: var(--primary-light);
  font-weight: 500;
}
.faq-item-body a:hover {
  color: var(--primary);
}

/* Artwork Requirements */
.aq-section {
  background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
  border-radius: var(--radius-2xl);
  padding: var(--space-10) var(--space-8);
  margin-bottom: var(--space-12);
  border: 1px solid var(--gray-100);
}
.aq-section h2 {
  text-align: center;
  margin-bottom: var(--space-2);
}
.aq-subtitle {
  text-align: center;
  color: var(--gray-500);
  margin-bottom: var(--space-8);
  font-size: var(--text-base);
}
.aq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}
.aq-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}
.aq-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.aq-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
}
.aq-card--design::before {
  background: linear-gradient(90deg, var(--success), #34d399);
}
.aq-card--we-design::before {
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
}
.aq-card--illustrator::before {
  background: linear-gradient(90deg, var(--warning), #fbbf24);
}
.aq-card--photoshop::before {
  background: linear-gradient(90deg, var(--info), #60a5fa);
}

.aq-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}
.aq-card-icon svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
}
.aq-card--design .aq-card-icon {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
}
.aq-card--we-design .aq-card-icon {
  background: rgba(26, 82, 118, 0.08);
  color: var(--primary);
}
.aq-card--illustrator .aq-card-icon {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
}
.aq-card--photoshop .aq-card-icon {
  background: rgba(59, 130, 246, 0.1);
  color: var(--info);
}

.aq-card h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--space-4);
}
.aq-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.aq-card li {
  position: relative;
  padding-left: var(--space-6);
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
  color: var(--gray-600);
  line-height: 1.7;
}
.aq-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
}
.aq-card--design li::before {
  background: var(--success);
}
.aq-card--we-design li::before {
  background: var(--primary);
}
.aq-card--illustrator li::before {
  background: var(--warning);
}
.aq-card--photoshop li::before {
  background: var(--info);
}
.aq-card li strong {
  color: var(--gray-800);
}
.aq-card .aq-warning {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px 8px;
  background: rgba(245, 158, 11, 0.1);
  border-radius: var(--radius-full);
  color: var(--warning);
  font-size: var(--text-xs);
  font-weight: 600;
  margin-right: var(--space-1);
}
.aq-card .aq-warning svg {
  width: 12px;
  height: 12px;
  stroke: currentColor;
  flex-shrink: 0;
}

.aq-contact {
  text-align: center;
  padding: var(--space-6);
  background: var(--white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--gray-100);
}
.aq-contact p {
  color: var(--gray-600);
  margin-bottom: var(--space-2);
}
.aq-contact a {
  font-weight: 600;
  font-size: var(--text-lg);
}

/* CTA block */
.faq-cta {
  margin-top: var(--space-10);
  padding: var(--space-10) var(--space-8);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: var(--radius-2xl);
  text-align: center;
  color: var(--white);
}
.faq-cta h3 {
  color: var(--white);
  font-size: var(--text-2xl);
  margin-bottom: var(--space-3);
}
.faq-cta p {
  color: rgba(255, 255, 255, 0.8);
  max-width: 500px;
  margin: 0 auto var(--space-6);
  font-size: var(--text-base);
  line-height: 1.7;
}
.faq-cta .btn-primary {
  background: var(--white);
  color: var(--primary);
  font-weight: 700;
  font-size: var(--text-base);
}
.faq-cta .btn-primary:hover {
  background: var(--accent);
  color: var(--white);
  transform: translateY(-2px);
}

/* Section divider */
.faq-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: var(--space-12) 0 var(--space-8);
}
.faq-divider::before,
.faq-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--gray-200);
}
.faq-divider span {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 2px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
}
.faq-divider span svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}

@media (max-width: 768px) {
  .aq-grid {
    grid-template-columns: 1fr;
  }
  .aq-section {
    padding: var(--space-6) var(--space-4);
  }
  .faq-hero h1 {
    font-size: var(--text-2xl);
  }
  .faq-item-header {
    padding: var(--space-4);
  }
  .faq-item-body {
    margin-left: 0;
    padding: 0 var(--space-4) var(--space-4);
  }
  .faq-categories {
    gap: var(--space-1);
  }
  .faq-cat-btn {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
  }
}

/* ============================ Cookie Consent ============================ */
.cookie-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9998;
  background: var(--white);
  border-top: 1px solid var(--gray-200);
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.08);
  visibility: hidden;
  will-change: transform;
  transform: translateY(100%);
  transition:
    visibility 0.4s,
    transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.cookie-bar.visible {
  visibility: visible;
  transform: translateY(0);
}
.cookie-bar.hiding {
  transform: translateY(100%);
  visibility: visible;
}
.cookie-bar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-3) var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: nowrap;
}
.cookie-bar-content {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--gray-600);
  line-height: 1.5;
}
.cookie-bar-content h4 {
  display: none;
}
.cookie-bar-content p {
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cookie-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  stroke: var(--gray-600);
}
.cookie-bar-content a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  white-space: nowrap;
}
.cookie-bar-content a:hover {
  color: var(--primary-dark);
}
.cookie-bar-actions {
  display: flex;
  gap: var(--space-2);
  flex-shrink: 0;
  align-items: center;
}
.cookie-btn {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  font-family: inherit;
  white-space: nowrap;
  letter-spacing: 0.3px;
}
.cookie-btn--accept {
  background: var(--primary);
  color: var(--white);
}
.cookie-btn--accept:hover {
  background: var(--primary-dark);
  box-shadow: var(--shadow-md);
}
.cookie-btn--settings {
  background: var(--white);
  color: var(--gray-700);
  border: 1px solid var(--gray-300);
}
.cookie-btn--settings:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(26, 82, 118, 0.04);
}
.cookie-btn--essential {
  background: var(--gray-100);
  color: var(--gray-700);
}
.cookie-btn--essential:hover {
  background: var(--gray-200);
  color: var(--gray-700);
}

/* Cookie Modal */
.cookie-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition:
    visibility 0.3s,
    opacity 0.3s ease;
}
.cookie-modal-overlay.visible {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}
.cookie-modal {
  background: var(--white);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  max-width: 520px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  transform: translateY(20px) scale(0.97);
  transition: transform 0.3s ease;
}
.cookie-modal-overlay.visible .cookie-modal {
  transform: translateY(0) scale(1);
}
.cookie-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6) var(--space-4);
  border-bottom: 1px solid var(--gray-100);
}
.cookie-modal-header h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--gray-900);
}
.cookie-modal-close {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--gray-100);
  border: none;
  cursor: pointer;
  font-size: var(--text-lg);
  color: var(--gray-500);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}
.cookie-modal-close:hover {
  background: var(--gray-200);
  color: var(--gray-800);
}
.cookie-modal-body {
  padding: var(--space-5) var(--space-6);
}
.cookie-modal-body > p {
  font-size: var(--text-sm);
  color: var(--gray-500);
  line-height: 1.7;
  margin-bottom: var(--space-5);
}
.cookie-modal-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.cookie-modal-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100);
}
.cookie-modal-row strong {
  display: block;
  font-size: var(--text-sm);
  color: var(--gray-800);
  margin-bottom: var(--space-1);
}
.cookie-modal-row span {
  display: block;
  font-size: var(--text-xs);
  color: var(--gray-400);
  line-height: 1.5;
}
.cookie-modal-footer {
  padding: var(--space-4) var(--space-6) var(--space-5);
  display: flex;
  justify-content: flex-end;
}

/* Cookie toggle switch */
.cookie-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  flex-shrink: 0;
}
.cookie-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}
.cookie-toggle-slider {
  width: 40px;
  height: 24px;
  background: var(--gray-300);
  border-radius: var(--radius-full);
  position: relative;
  transition: background var(--transition-fast);
}
.cookie-toggle-slider::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: var(--white);
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: transform var(--transition-fast);
}
.cookie-toggle input:checked + .cookie-toggle-slider {
  background: var(--primary);
}
.cookie-toggle input:checked + .cookie-toggle-slider::after {
  transform: translateX(16px);
}
.cookie-toggle input:disabled + .cookie-toggle-slider {
  opacity: 0.5;
  cursor: not-allowed;
}

@media (max-width: 768px) {
  .cookie-bar-inner {
    flex-wrap: wrap;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
  }
  .cookie-bar-content p {
    white-space: normal;
    font-size: 11px;
  }
  .cookie-bar-actions {
    width: 100%;
    justify-content: center;
    gap: var(--space-2);
  }
  .cookie-bar-actions .cookie-btn {
    padding: var(--space-1) var(--space-3);
    font-size: 11px;
  }
  .cookie-modal {
    max-width: 100%;
    margin: var(--space-4);
    max-height: 80vh;
  }
  .cookie-modal-header {
    padding: var(--space-4) var(--space-4) var(--space-3);
  }
  .cookie-modal-body {
    padding: var(--space-4);
  }
  .cookie-modal-footer {
    padding: var(--space-3) var(--space-4) var(--space-4);
  }
  .cookie-modal-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
  .cookie-modal-row .cookie-toggle {
    align-self: flex-end;
  }
  #cookie-save-preferences {
    width: 100%;
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    min-height: 40px;
  }
}

/* Extra-narrow mobile: stack buttons vertically if wrapping needed */
@media (max-width: 360px) {
  .cookie-bar-actions {
    flex-wrap: wrap;
    justify-content: center;
  }
  .cookie-bar-actions .cookie-btn {
    flex: 0 1 auto;
    min-width: 70px;
  }
}

/* ============================ Exhibitions Section ============================ */
.exhibition-section {
  padding: var(--space-16) 0;
  background: var(--gray-50);
}
.exhibition-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-10);
}
.exhibition-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
}
.exhibition-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}
.exhibition-image {
  position: relative;
  overflow: hidden;
}
.exhibition-image img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.exhibition-card:hover .exhibition-image img {
  transform: scale(1.05);
}
.exhibition-badge {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  background: var(--primary);
  color: var(--white);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.exhibition-content {
  padding: var(--space-5);
}
.exhibition-content h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--space-2);
}
.exhibition-content p {
  font-size: var(--text-sm);
  color: var(--gray-600);
  line-height: 1.6;
  margin-bottom: var(--space-3);
}
.exhibition-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.exhibition-tag {
  background: var(--primary);
  color: var(--white);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 500;
}
.exhibition-year {
  color: var(--gray-600);
  font-size: var(--text-xs);
  font-weight: 500;
}
.exhibition-cta {
  text-align: center;
  margin-top: var(--space-10);
}

@media (max-width: 1024px) {
  .exhibition-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .exhibition-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================ Footer ============================ */
.site-footer {
  background: linear-gradient(175deg, var(--gray-900) 0%, #0a1628 50%, var(--black) 100%);
  color: var(--gray-400);
  padding: var(--space-16) 0 var(--space-8);
  position: relative;
}
.site-footer::before {
  content: '';
  position: absolute;
  top: -2px; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary-light), var(--accent), var(--primary-light), transparent);
  opacity: 0.6;
}
.site-footer a {
  color: var(--gray-300);
}
.site-footer a:hover {
  color: var(--white);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}
.footer-col h4 {
  color: var(--white);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-4);
}
.footer-col p {
  font-size: var(--text-sm);
  line-height: 1.7;
  margin-bottom: var(--space-3);
}
.footer-col a {
  color: var(--gray-400);
  font-size: var(--text-sm);
  display: block;
  margin-bottom: var(--space-2);
  transition: color var(--transition-fast);
}
.footer-col a:hover {
  color: var(--white);
}
.social-links {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}
.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  font-size: var(--text-sm);
  transition: all var(--transition-fast);
}
.social-links a:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-sm);
  color: var(--gray-500);
}
.footer-bottom a {
  color: var(--gray-500);
}
.footer-bottom a:hover {
  color: var(--gray-300);
}

/* ============================ Certs Section ============================ */
.certs-section {
  padding: var(--space-16) 0;
  background: var(--white);
  text-align: center;
}
.certs-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-8) 0;
}
.certs-item {
  text-align: center;
  flex: 0 0 auto;
}
.certs-item img {
  width: 140px;
  height: 140px;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--space-3);
  transition: transform var(--transition-base);
}
.certs-item:hover img {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}
.certs-item span {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--gray-700);
  display: block;
}

/* ============================ Global Distribution ============================ */
.global-section {
  padding: var(--space-20) 0;
  background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
}

.global-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-16);
  align-items: center;
}

.global-text h2 {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: var(--space-6);
  line-height: 1.2;
}

.global-text h2 span {
  display: block;
  color: var(--primary);
}

.global-lead {
  font-size: var(--text-lg);
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: var(--space-10);
}

/* Region grid */
.global-regions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}

.global-region {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
}

.global-region-label {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}

.global-region-countries {
  font-size: var(--text-sm);
  color: var(--gray-600);
  line-height: 1.6;
}

/* Feature cards */
.global-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-bottom: var(--space-10);
}

.global-feature {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition:
    box-shadow var(--transition-base),
    transform var(--transition-base);
}

.global-feature:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.global-feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  flex-shrink: 0;
}

.global-feature-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--white);
}

.global-feature h3,
.global-feature h4 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--space-2);
}

.global-feature p {
  font-size: var(--text-sm);
  color: var(--gray-500);
  line-height: 1.7;
}

/* Closing CTA line */
.global-closing {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: var(--space-6);
  padding: var(--space-4) var(--space-6);
  background: var(--white);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* Map visualization */
.global-map {
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.global-map-inner {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  max-width: 540px;
  background: radial-gradient(ellipse at center, var(--gray-100) 0%, transparent 70%);
  border-radius: var(--radius-2xl);
  overflow: hidden;
}

.global-map-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(2px 2px at 20% 35%, var(--primary-light) 50%, transparent 50%),
    radial-gradient(2px 2px at 48% 30%, var(--primary-light) 50%, transparent 50%),
    radial-gradient(2px 2px at 55% 40%, var(--primary-light) 50%, transparent 50%),
    radial-gradient(2px 2px at 25% 65%, var(--primary-light) 50%, transparent 50%),
    radial-gradient(2px 2px at 50% 70%, var(--primary-light) 50%, transparent 50%),
    radial-gradient(2px 2px at 72% 55%, var(--primary-light) 50%, transparent 50%),
    radial-gradient(2px 2px at 75% 25%, var(--primary-light) 50%, transparent 50%),
    radial-gradient(2px 2px at 82% 50%, var(--primary-light) 50%, transparent 50%),
    radial-gradient(2px 2px at 85% 75%, var(--primary-light) 50%, transparent 50%),
    radial-gradient(2px 2px at 30% 38%, var(--primary-light) 50%, transparent 50%),
    radial-gradient(2px 2px at 13% 45%, var(--primary-light) 50%, transparent 50%),
    radial-gradient(2px 2px at 40% 60%, var(--primary-light) 50%, transparent 50%);
  opacity: 0.6;
}

.map-dot {
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: var(--radius-full);
  box-shadow: 0 0 0 4px rgba(231, 76, 60, 0.2);
  animation: mapPulse 2s ease-in-out infinite;
  transform: translate(-50%, -50%);
}

.map-dot:nth-child(odd) {
  animation-delay: 0.5s;
}

.map-dot:nth-child(3n) {
  animation-delay: 1s;
}

@keyframes mapPulse {
  0%,
  100% {
    box-shadow: 0 0 0 4px rgba(231, 76, 60, 0.2);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(231, 76, 60, 0.05);
  }
}

/* ============================ Privacy Policy ============================ */
.privacy-content a {
  text-decoration: underline;
  text-underline-offset: 2px;
}
.privacy-rights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-4);
}

/* ============================ Responsive Design ============================ */
@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    text-align: center;
  }
  .footer-col h4 {
    margin-bottom: var(--space-3);
  }
  .social-links {
    justify-content: center;
  }
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
  .certs-section {
    padding: var(--space-10) 0;
  }
  .certs-strip {
    gap: var(--space-4);
    padding: var(--space-6) 0;
  }
  .certs-item img {
    width: 100px;
    height: 100px;
  }
  .certs-item span {
    font-size: var(--text-xs);
  }

  .articles-header {
    padding: var(--space-8) 0 var(--space-4);
  }
  .articles-header h1 {
    font-size: var(--text-2xl);
  }
  .article-card-title {
    font-size: var(--text-base);
  }
  .article-card-excerpt {
    font-size: var(--text-xs);
    -webkit-line-clamp: 2;
    line-clamp: 2;
  }
  .article-card-body {
    padding: var(--space-4);
  }
  .article-card-meta {
    font-size: 11px;
    gap: var(--space-2);
  }

  .global-section {
    padding: var(--space-12) 0;
  }
  .global-grid {
    gap: var(--space-8);
  }
  .global-text h2 {
    font-size: var(--text-2xl);
  }
  .global-lead {
    font-size: var(--text-sm);
    margin-bottom: var(--space-6);
  }
  .global-features {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  .global-regions {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }
  .global-region {
    padding: var(--space-3);
  }
  .global-feature {
    padding: var(--space-4);
  }
  .global-feature-icon {
    width: 40px;
    height: 40px;
  }
  .global-feature-icon svg {
    width: 20px;
    height: 20px;
  }
  .global-feature h4 {
    font-size: var(--text-sm);
  }
  .global-feature p {
    font-size: var(--text-xs);
  }
  .global-closing {
    font-size: var(--text-sm);
    padding: var(--space-3) var(--space-4);
  }

  .contact-grid {
    grid-template-columns: 1fr !important;
    gap: var(--space-8);
  }
  .inquiry-box h3 {
    font-size: var(--text-lg);
  }
}

@media (max-width: 480px) {
  .certs-strip {
    gap: var(--space-3);
  }
  .certs-item img {
    width: 80px;
    height: 80px;
  }

  .articles-header {
    padding: var(--space-6) 0 var(--space-3);
  }
  .articles-header h1 {
    font-size: var(--text-xl);
  }
  .article-card-title {
    font-size: var(--text-sm);
    -webkit-line-clamp: 2;
    line-clamp: 2;
  }
  .article-card-excerpt {
    font-size: 11px;
    -webkit-line-clamp: 2;
    line-clamp: 2;
  }
  .article-card-body {
    padding: var(--space-3);
  }
  .article-card-meta {
    font-size: 10px;
  }

  .global-section {
    padding: var(--space-8) 0;
  }
  .global-grid {
    gap: var(--space-6);
  }
  .global-text h2 {
    font-size: var(--text-xl);
  }
  .global-lead {
    font-size: var(--text-xs);
    margin-bottom: var(--space-5);
  }
  .global-features {
    grid-template-columns: 1fr;
  }
  .global-regions {
    grid-template-columns: 1fr;
  }
  .global-feature {
    padding: var(--space-3) var(--space-4);
  }
  .global-feature-icon {
    width: 36px;
    height: 36px;
    margin-bottom: var(--space-3);
  }
  .global-feature-icon svg {
    width: 18px;
    height: 18px;
  }
  .global-feature h4 {
    font-size: var(--text-xs);
  }
  .global-feature p {
    font-size: 10px;
  }
  .global-closing {
    font-size: var(--text-xs);
    padding: var(--space-2) var(--space-3);
  }
  .global-region-label {
    font-size: 10px;
  }
  .global-region-countries {
    font-size: 10px;
  }

  .contact-grid {
    gap: var(--space-6);
  }
  .inquiry-box h3 {
    font-size: var(--text-base);
  }
  .inquiry-box .btn-primary {
    font-size: var(--text-sm);
  }
}

/* ============================ CTA Section ============================ */
.cta-section {
  padding: var(--space-16) 0;
  background: linear-gradient(
    135deg,
    var(--primary-dark) 0%,
    var(--primary) 50%,
    var(--primary-light) 100%
  );
  color: var(--white);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.3;
}
.cta-section .container {
  position: relative;
  z-index: 1;
}
.cta-section h2 {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--white);
  margin-bottom: var(--space-4);
}
.cta-section p {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.9);
  max-width: 600px;
  margin: 0 auto var(--space-8);
  line-height: 1.7;
}
.cta-section .btn-primary {
  background: var(--accent-dark);
  color: var(--white);
  font-size: var(--text-lg);
  padding: var(--space-4) var(--space-10);
  box-shadow: 0 8px 24px rgba(192, 57, 43, 0.3);
}
.cta-section .btn-primary:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(231, 76, 60, 0.4);
}

@media (max-width: 768px) {
  .cta-section {
    padding: var(--space-12) 0;
  }
  .cta-section h2 {
    font-size: var(--text-2xl);
  }
  .cta-section p {
    font-size: var(--text-base);
    padding: 0 var(--space-4);
  }
}

/* ============================ Print ============================ */
@media print {
  .site-header,
  .site-footer,
  .category-nav,
  .cta-section,
  .mobile-menu-btn,
  .btn-contact {
    display: none !important;
  }
  .product-detail-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================ Programmatic Page ============================ */

.page-detail {
  padding: var(--space-12) 0;
}

.page-hero {
  text-align: center;
  padding-bottom: var(--space-8);
  margin-bottom: var(--space-8);
  border-bottom: 1px solid var(--gray-200);
}

.page-type-badge {
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.page-hero h1 {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: var(--space-4);
  line-height: 1.15;
}

.page-meta {
  font-size: var(--text-sm);
  color: var(--gray-500);
}

.page-content {
  color: var(--gray-700);
  line-height: 1.85;
  font-size: var(--text-base);
  max-width: 780px;
  margin: 0 auto;
}

.page-content h2 {
  font-size: var(--text-2xl);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 2px solid var(--gray-100);
}

.page-content h3 {
  font-size: var(--text-xl);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.page-content h4 {
  font-size: var(--text-lg);
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
}

.page-content p {
  margin-bottom: var(--space-5);
}

.page-content ul,
.page-content ol {
  margin-bottom: var(--space-5);
  padding-left: var(--space-6);
}

.page-content li {
  margin-bottom: var(--space-2);
}

.page-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  margin: var(--space-6) 0;
}

.page-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-6) 0;
  font-size: var(--text-sm);
}

.page-content th,
.page-content td {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--gray-200);
  text-align: left;
}

.page-content th {
  background: var(--gray-50);
  font-weight: 700;
  color: var(--gray-800);
}

.page-content td {
  color: var(--gray-600);
}

.page-content blockquote {
  border-left: 4px solid var(--primary);
  padding: var(--space-4) var(--space-6);
  margin: var(--space-6) 0;
  background: var(--gray-50);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--gray-600);
  font-style: italic;
}

.page-content a {
  color: var(--primary-light);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-content a:hover {
  color: var(--primary);
}

.page-content strong {
  color: var(--gray-900);
}

.page-content hr {
  border: none;
  border-top: 1px solid var(--gray-200);
  margin: var(--space-8) 0;
}

.page-content code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--gray-100);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
  color: var(--accent);
}

@media (max-width: 768px) {
  .page-hero h1 {
    font-size: var(--text-2xl);
  }

  .page-content {
    font-size: var(--text-sm);
  }

  .page-content h2 {
    font-size: var(--text-xl);
  }

  .page-content h3 {
    font-size: var(--text-lg);
  }
}

/* ============================================================
   产品配件选择器 (Product Accessory Configurator)
   ============================================================ */

.pd-accessory-section {
    margin-top: var(--space-4);
    margin-bottom: var(--space-4);
}

.pd-accessory-group {
    margin-bottom: var(--space-4);
}

.pd-accessory-group-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
    margin: 0 0 var(--space-2);
    display: flex;
    align-items: center;
    justify-content: space-between;
    user-select: none;
}

.pd-accessory-group-title--collapsible {
    cursor: pointer;
    transition: color 0.2s;
}

.pd-accessory-group-title--collapsible:hover {
    color: var(--primary);
}

.pd-accessory-chevron {
    display: inline-flex;
    align-items: center;
    transition: transform 0.2s;
}

.pd-accessory-collapse {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.pd-accessory-collapse--show {
    max-height: 500px;
}

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

.pd-accessory-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 0.5rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
    background: var(--white);
}

.pd-accessory-card:hover {
    border-color: var(--primary-light);
}

.pd-accessory-card--selected {
    border-color: var(--primary);
    background: var(--info-light);
    box-shadow: 0 0 0 1px rgba(26, 82, 118, 0.2);
}

.pd-accessory-card--selected::after {
    content: '';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 16px;
    height: 16px;
    background: var(--primary);
    border-radius: 50%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    background-position: center;
    background-repeat: no-repeat;
}

.pd-accessory-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.pd-accessory-card-img {
    width: 90%;
    max-width: 240px;
    aspect-ratio: 4/3;
    object-fit: cover;
    margin: 0 auto var(--space-1);
    border-radius: var(--radius-md);
}

.pd-accessory-card-name {
    font-size: 12px;
    color: var(--gray-700);
    line-height: 1.4;
    margin-bottom: 2px;
}

.pd-accessory-card-price {
    font-size: 11px;
    color: var(--primary);
    font-weight: 600;
}

/* Mobile: horizontal scroll */
@media (max-width: 767px) {
    .pd-accessory-grid {
        display: flex;
        overflow-x: auto;
        gap: 10px;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 4px;
    }

    .pd-accessory-card {
        flex: 0 0 40%;
        min-width: 120px;
        scroll-snap-align: start;
    }
}

/* ============================ Form Error Display ============================ */
.form-error {
  color: #E4002B;
  font-size: 0.8rem;
  margin-top: 0.25rem;
  display: none;
}
.form-group.error .form-error {
  display: block;
}

/* ============================ PDF Download Modal ============================ */
.pdf-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition:
    visibility 0.3s,
    opacity 0.3s ease;
}
.pdf-modal-overlay.visible {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}
.pdf-modal {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  max-width: 440px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: var(--space-6);
  transform: translateY(20px) scale(0.97);
  transition: transform 0.3s ease;
}
.pdf-modal-overlay.visible .pdf-modal {
  transform: translateY(0) scale(1);
}
.pdf-modal-close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-4);
  background: none;
  border: none;
  font-size: 1.75rem;
  line-height: 1;
  color: var(--gray-400);
  cursor: pointer;
  padding: var(--space-1);
  transition: color 0.2s;
}
.pdf-modal-close:hover {
  color: var(--gray-700);
}
.pdf-modal h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--space-2);
}
.pdf-modal-subtitle {
  font-size: var(--text-sm);
  color: var(--gray-500);
  margin-bottom: var(--space-5);
}
.pdf-modal-field {
  margin-bottom: var(--space-4);
}
.pdf-modal-field label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: var(--space-2);
}
.pdf-modal-field input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-family: inherit;
  transition: border-color 0.2s;
}
.pdf-modal-field input:focus {
  outline: none;
  border-color: var(--gray-900);
}
.pdf-modal-field input:disabled {
  background: var(--gray-50);
  color: var(--gray-400);
  cursor: not-allowed;
}
.pdf-modal-btn {
  width: 100%;
  margin-bottom: var(--space-4);
}
.pdf-modal-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.pdf-modal-status {
  font-size: var(--text-sm);
  text-align: center;
  min-height: 1.25rem;
  margin-top: var(--space-2);
}
.pdf-modal-status.success {
  color: #10b981;
}
.pdf-modal-status.error {
  color: #E4002B;
}

/* 提示文案 */
.pdf-modal-hint {
  font-size: var(--text-sm);
  color: var(--gray-600);
  line-height: 1.5;
  margin-bottom: var(--space-3);
}

/* 提交询盘链接 */
.pdf-modal-inquiry-link {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--gray-900);
  text-decoration: underline;
  padding: var(--space-1) 0;
  margin-bottom: var(--space-4);
  min-height: 44px;
}
.pdf-modal-inquiry-link:hover {
  color: var(--gray-700);
}

/* 询盘锚点偏移（固定 header 遮挡） */
#pd-inquiry {
  scroll-margin-top: 80px;
}

/* PDF Download Modal 移动端响应式 */
@media (max-width: 768px) {
  .pdf-modal-overlay {
    padding: var(--space-2);
  }
  .pdf-modal {
    max-width: calc(100vw - 2rem);
    width: calc(100% - 2rem);
    padding: var(--space-4);
    max-height: 90vh;
  }
  .pdf-modal h3 {
    font-size: var(--text-lg);
  }
  .pdf-modal-hint {
    font-size: var(--text-sm);
  }
  .pdf-modal-inquiry-link {
    min-height: 44px;
    min-width: 44px;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
  }
  .pdf-modal-field input {
    width: 100%;
    font-size: var(--text-sm);
  }
  .pdf-modal-btn {
    width: 100%;
  }
}