/* ============================================
   Eynos LifeScience - Design System
   ============================================ */

/* CSS Variables */
:root {
  /* Primary Colors - Orange used only as accent/CTA */
  --primary: #EA580C;
  --primary-dark: #C2410C;
  --primary-light: #F97316;
  --primary-lighter: #FFF7ED;

  /* Accent */
  --accent: #F59E0B;
  --accent-dark: #D97706;

  /* Dark - Cool professional navy/charcoal for headers and dark sections */
  --dark: #0F172A;
  --dark-2: #1E293B;
  --dark-3: #334155;

  /* Navy - For page headers, table headers, dark accents */
  --navy: #1E293B;
  --navy-light: #334155;
  --navy-dark: #0F172A;

  /* Neutrals */
  --gray-900: #1A2332;
  --gray-700: #374151;
  --gray-600: #4B5563;
  --gray-500: #6B7280;
  --gray-400: #9CA3AF;
  --gray-300: #D1D5DB;
  --gray-200: #E5E7EB;
  --gray-100: #F3F4F6;
  --gray-50: #F8FAFC;
  --white: #FFFFFF;

  /* Semantic */
  --success: #10B981;
  --warning: #F59E0B;

  /* Typography */
  --font-sans: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  --font-display: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;

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

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(28, 25, 23, 0.08);
  --shadow-md: 0 4px 12px rgba(28, 25, 23, 0.1);
  --shadow-lg: 0 10px 30px rgba(28, 25, 23, 0.12);
  --shadow-xl: 0 20px 50px rgba(28, 25, 23, 0.15);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Layout */
  --container-max: 1200px;
  --nav-height: 72px;
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--gray-700);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

ul {
  list-style: none;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--dark);
  font-weight: 700;
  line-height: 1.3;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

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

.section-subtitle {
  text-align: center;
  color: var(--gray-500);
  font-size: 1.05rem;
  max-width: 640px;
  margin: 0 auto var(--space-2xl);
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--primary);
  background: transparent;
  padding: 6px 0;
  margin-bottom: var(--space-sm);
  position: relative;
}

.section-tag::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

/* ============================================
   Layout
   ============================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--space-3xl) 0;
}

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

/* ============================================
   Top Bar
   ============================================ */
.topbar {
  background: var(--dark);
  color: rgba(255,255,255,0.75);
  font-size: 0.82rem;
  padding: 8px 0;
}

.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar-left {
  display: flex;
  gap: 24px;
}

.topbar-left span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.topbar-left svg {
  width: 14px;
  height: 14px;
  opacity: 0.7;
}

.topbar-right a {
  color: rgba(255,255,255,0.75);
  font-size: 0.82rem;
}

.topbar-right a:hover {
  color: var(--white);
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: box-shadow var(--transition-base);
  border-bottom: 1px solid var(--gray-100);
}

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

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--dark);
}

.nav-logo svg {
  width: 36px;
  height: 36px;
}

.nav-logo .logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.nav-logo .logo-text small {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--gray-500);
  letter-spacing: 1px;
}

.nav-logo .logo-img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 8px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav-menu a {
  color: var(--gray-700);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--primary);
  background: transparent;
}

.nav-menu a.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

/* Nav Dropdown */
.nav-has-dropdown {
  position: relative;
}

.nav-has-dropdown > a {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-has-dropdown > a::before {
  content: '';
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  margin-left: 4px;
  transition: transform var(--transition-fast);
  position: static;
  background: none;
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 180px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0,0,0,0.10);
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 100;
}

.nav-has-dropdown:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-has-dropdown:hover > a::before {
  transform: rotate(180deg);
  border-top-color: var(--primary);
}

.nav-dropdown li {
  list-style: none;
}

.nav-dropdown a {
  display: block;
  padding: 8px 14px;
  font-size: 0.88rem;
  color: var(--gray-700);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-dropdown a:hover {
  background: var(--gray-50);
  color: var(--primary);
}

.nav-dropdown a.active {
  color: var(--primary);
  background: rgba(234, 88, 12, 0.08);
}

.nav-cta {
  margin-left: 12px;
}

.nav-cta + .nav-cta {
  margin-left: 4px;
}

/* Nav Search Box */
.nav-search-item {
  margin-left: 12px;
}

.nav-search-form {
  display: flex;
  align-items: center;
  position: relative;
}

.nav-search-input {
  width: 180px;
  padding: 8px 36px 8px 14px;
  border: 1.5px solid var(--gray-200);
  border-radius: 999px;
  background: var(--gray-50);
  font-size: 0.9rem;
  color: var(--gray-700);
  font-family: var(--font-sans);
  transition: all var(--transition-fast);
}

.nav-search-input::placeholder {
  color: var(--gray-400);
}

.nav-search-input:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(234, 88, 12, 0.1);
  width: 220px;
}

.nav-search-btn {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--primary);
  border: none;
  color: var(--white);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-fast);
  flex-shrink: 0;
}

.nav-search-btn:hover {
  background: var(--primary-dark);
}

.nav-search-btn svg {
  width: 14px;
  height: 14px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  margin: 5px 0;
  transition: all var(--transition-base);
  border-radius: 2px;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(234, 88, 12, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 2px solid var(--gray-300);
}

.btn-outline:hover {
  background: var(--gray-50);
  border-color: var(--navy);
  color: var(--navy);
}

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

.btn-light:hover {
  background: var(--primary-lighter);
  color: var(--primary-dark);
}

.btn-ghost {
  background: var(--gray-100);
  color: var(--navy);
}

.btn-ghost:hover {
  background: var(--gray-200);
  color: var(--primary);
}

.btn svg {
  width: 16px;
  height: 16px;
}

/* ============================================
   Hero Section - Neutral professional background
   ============================================ */
.hero {
  position: relative;
  background: linear-gradient(135deg, #F8FAFC 0%, #F1F5F9 100%);
  color: var(--dark);
  overflow: hidden;
  padding: var(--space-3xl) 0;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(15, 23, 42, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(100, 116, 139, 0.06) 0%, transparent 50%);
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 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='%230F172A' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.hero-content {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.8);
  border: 1px solid var(--gray-200);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  color: var(--gray-700);
  margin-bottom: var(--space-lg);
  backdrop-filter: blur(10px);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero h1 {
  color: var(--dark);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.1rem;
  color: var(--gray-600);
  margin-bottom: var(--space-xl);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--gray-200);
}

.hero-stat .num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--dark);
  line-height: 1;
}

.hero-stat .label {
  font-size: 0.82rem;
  color: var(--gray-500);
  margin-top: 4px;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  height: 420px;
}

.hero-card {
  position: absolute;
  background: rgba(255,255,255,0.95);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(10px);
  animation: floatCard 6s ease-in-out infinite;
}

.hero-card-1 {
  top: 20px;
  right: 40px;
  width: 240px;
  animation-delay: 0s;
}

.hero-card-2 {
  bottom: 60px;
  left: 0;
  width: 200px;
  animation-delay: 2s;
}

.hero-card-3 {
  bottom: 0;
  right: 80px;
  width: 180px;
  animation-delay: 4s;
}

@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero-card .card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
}

.hero-card .card-icon svg {
  width: 22px;
  height: 22px;
}

.hero-card h4 {
  font-size: 0.95rem;
  color: var(--dark);
  margin-bottom: 4px;
}

.hero-card p {
  font-size: 0.78rem;
  color: var(--gray-500);
  margin: 0;
}

/* Molecular decoration */
.hero-molecule {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 300px;
  height: 300px;
  opacity: 0.06;
  animation: rotate 40s linear infinite;
}

@keyframes rotate {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ============================================
   Platform Cards (3 columns)
   ============================================ */
.platforms {
  background: var(--gray-50);
}

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

.platform-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 1px solid var(--gray-100);
  position: relative;
  overflow: hidden;
}

.platform-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.platform-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

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

.platform-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #F1F5F9, #E2E8F0);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.platform-icon svg {
  width: 28px;
  height: 28px;
  color: var(--primary);
}

.platform-card h3 {
  margin-bottom: var(--space-sm);
  font-size: 1.2rem;
}

.platform-card p {
  color: var(--gray-500);
  font-size: 0.92rem;
  line-height: 1.7;
}

.platform-card .platform-number {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  font-size: 3rem;
  font-weight: 800;
  color: var(--gray-100);
  line-height: 1;
}

/* ============================================
   Product Grid
   ============================================ */
.products-section {
  background: var(--white);
}

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

.product-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
  cursor: pointer;
}

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

.product-card-header {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-card-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #F1F5F9 0%, #E2E8F0 100%);
}

.product-card-header .product-icon {
  position: relative;
  z-index: 1;
  width: 56px;
  height: 56px;
  color: var(--primary);
  transition: transform var(--transition-base);
}

.product-card:hover .product-icon {
  transform: scale(1.15);
}

/* Alternate header colors */
.product-card:nth-child(2n) .product-card-header::before {
  background: linear-gradient(135deg, #F8FAFC 0%, #F1F5F9 100%);
}

.product-card:nth-child(2n) .product-icon {
  color: var(--navy-light);
}

.product-card:nth-child(3n) .product-card-header::before {
  background: linear-gradient(135deg, #E2E8F0 0%, #CBD5E1 100%);
}

.product-card:nth-child(3n) .product-icon {
  color: var(--navy);
}

.product-card-body {
  padding: var(--space-md);
}

.product-card-body h4 {
  font-size: 1rem;
  color: var(--dark);
  margin-bottom: 8px;
}

.product-card-body p {
  font-size: 0.82rem;
  color: var(--gray-500);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

.product-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition-fast);
}

.product-card:hover .product-link {
  gap: 8px;
}

.product-link svg {
  width: 14px;
  height: 14px;
}

/* ============================================
   Why Choose Us - Neutral background with subtle orange accents
   ============================================ */
.why-us {
  background: var(--gray-50);
  color: var(--gray-700);
  position: relative;
  overflow: hidden;
}

.why-us::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 10% 20%, rgba(15, 23, 42, 0.03) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(100, 116, 139, 0.04) 0%, transparent 40%);
}

.why-us .container {
  position: relative;
  z-index: 1;
}

.why-us .section-title {
  color: var(--dark);
}

.why-us .section-subtitle {
  color: var(--gray-500);
}

.why-us .section-tag {
  color: var(--primary);
}

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

.feature-item {
  text-align: center;
  padding: var(--space-lg);
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
}

.feature-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--gray-300);
  transform: translateY(-4px);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  border-radius: 50%;
  background: var(--gray-50);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
}

.feature-item:hover .feature-icon {
  background: var(--gray-100);
  border-color: var(--gray-300);
  transform: translateY(-4px);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  color: var(--primary);
}

.feature-item h4 {
  color: var(--dark);
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.feature-item p {
  color: var(--gray-500);
  font-size: 0.85rem;
  line-height: 1.6;
}

/* ============================================
   News Section
   ============================================ */
.news-section {
  background: var(--gray-50);
}

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

.news-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 1px solid var(--gray-100);
}

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

.news-card-header {
  height: 180px;
  background: linear-gradient(135deg, #F1F5F9 0%, #E2E8F0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.news-card:nth-child(2) .news-card-header {
  background: linear-gradient(135deg, #E2E8F0 0%, #CBD5E1 100%);
}

.news-card:nth-child(3) .news-card-header {
  background: linear-gradient(135deg, #F8FAFC 0%, #F1F5F9 100%);
}

.news-card-header svg {
  width: 48px;
  height: 48px;
  color: var(--gray-400);
}

.news-card-header .news-date {
  position: absolute;
  bottom: 12px;
  left: 16px;
  background: var(--white);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.news-card-body {
  padding: var(--space-md);
}

.news-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-lighter);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
}

.news-card-body h4 {
  font-size: 1rem;
  color: var(--dark);
  margin-bottom: 8px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card-body p {
  font-size: 0.85rem;
  color: var(--gray-500);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-sm);
}

.news-read-more {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.news-read-more svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.news-card:hover .news-read-more svg {
  transform: translateX(4px);
}

/* ============================================
   CTA Section - Dark professional background
   ============================================ */
.cta-section {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%);
  color: var(--white);
  text-align: center;
  padding: var(--space-2xl) 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Ccircle cx='20' cy='20' r='1'/%3E%3C/g%3E%3C/svg%3E");
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

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

.cta-section p {
  color: rgba(255,255,255,0.7);
  font-size: 1.05rem;
  margin-bottom: var(--space-lg);
}

.cta-actions {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.6);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

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

.footer-brand .nav-logo small {
  color: rgba(255,255,255,0.5);
}

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.7;
  max-width: 320px;
}

.footer-col h5 {
  color: var(--white);
  font-size: 0.95rem;
  margin-bottom: var(--space-md);
  font-weight: 600;
}

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

.footer-col ul li a {
  color: rgba(255,255,255,0.6);
  font-size: 0.88rem;
  transition: color var(--transition-fast);
}

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

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 12px;
}

.footer-contact svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
}

.footer-bottom a {
  color: rgba(255,255,255,0.5);
}

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

/* ============================================
   Page Header (Inner Pages) - Dark navy professional
   ============================================ */
.page-header {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%);
  color: var(--white);
  padding: var(--space-2xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 50%, rgba(255,255,255,0.04) 0%, transparent 50%),
    radial-gradient(circle at 70% 50%, rgba(255,255,255,0.03) 0%, transparent 50%);
}

.page-header .container {
  position: relative;
  z-index: 1;
}

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

.page-header p {
  color: rgba(255,255,255,0.7);
  font-size: 1.05rem;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  margin-top: var(--space-sm);
}

.breadcrumb a {
  color: rgba(255,255,255,0.7);
}

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

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

.about-text h2 {
  margin-bottom: var(--space-md);
}

.about-text p {
  color: var(--gray-600);
  margin-bottom: var(--space-md);
  line-height: 1.9;
}

.about-text .highlight-box {
  background: #F1F5F9;
  border-left: 4px solid var(--primary);
  padding: var(--space-md);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-md) 0;
}

.about-text .highlight-box p {
  margin: 0;
  color: var(--navy);
  font-weight: 500;
}

.about-visual {
  position: relative;
}

.about-visual-card {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.about-visual-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 300px;
  height: 300px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
}

.about-visual-card .stat-big {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 8px;
}

.about-visual-card .stat-label {
  font-size: 1rem;
  opacity: 0.9;
  margin-bottom: var(--space-lg);
}

.about-visual-card .stat-divider {
  height: 1px;
  background: rgba(255,255,255,0.2);
  margin: var(--space-md) 0;
}

/* Mission & Values */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.value-card {
  text-align: center;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  background: var(--white);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
}

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

.value-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-md);
  border-radius: 50%;
  background: linear-gradient(135deg, #F1F5F9, #E2E8F0);
  display: flex;
  align-items: center;
  justify-content: center;
}

.value-icon svg {
  width: 32px;
  height: 32px;
  color: var(--primary);
}

.value-card h4 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.value-card p {
  color: var(--gray-500);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* Equipment Section */
.equipment-section {
  background: var(--gray-50);
}

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

.equipment-card {
  display: flex;
  gap: var(--space-md);
  background: var(--white);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
}

.equipment-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

.equipment-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #F1F5F9, #E2E8F0);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.equipment-icon svg {
  width: 28px;
  height: 28px;
  color: var(--primary);
}

.equipment-card h4 {
  margin-bottom: 6px;
}

.equipment-card p {
  font-size: 0.88rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ============================================
   Products Page Styles
   ============================================ */
.products-hero-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.product-detail-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

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

.product-detail-header {
  padding: var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  position: relative;
}

.product-detail-header.bg-1 { background: linear-gradient(135deg, #F1F5F9, #E2E8F0); }
.product-detail-header.bg-2 { background: linear-gradient(135deg, #F8FAFC, #F1F5F9); }
.product-detail-header.bg-3 { background: linear-gradient(135deg, #E2E8F0, #CBD5E1); }
.product-detail-header.bg-4 { background: linear-gradient(135deg, #F1F5F9, #E2E8F0); }
.product-detail-header.bg-5 { background: linear-gradient(135deg, #F8FAFC, #F1F5F9); }
.product-detail-header.bg-6 { background: linear-gradient(135deg, #E2E8F0, #CBD5E1); }
.product-detail-header.bg-7 { background: linear-gradient(135deg, #F1F5F9, #E2E8F0); }
.product-detail-header.bg-8 { background: linear-gradient(135deg, #F8FAFC, #F1F5F9); }

.product-detail-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.product-detail-icon svg {
  width: 32px;
  height: 32px;
}

.product-detail-header h3 {
  margin: 0;
}

.product-detail-header .product-tag {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.product-detail-body {
  padding: var(--space-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-detail-body p {
  color: var(--gray-600);
  font-size: 0.92rem;
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.product-features {
  margin-bottom: var(--space-md);
}

.product-features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--gray-600);
  margin-bottom: 8px;
}

.product-features svg {
  width: 16px;
  height: 16px;
  color: var(--success);
  flex-shrink: 0;
  margin-top: 3px;
}

/* ============================================
   News Page Styles
   ============================================ */
/* News Filter Bar */
.news-filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--gray-200);
}

.news-filter-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.news-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-full);
  background: var(--white);
  color: var(--gray-600);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-sans);
}

.news-filter-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-lighter);
}

.news-filter-btn.active {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
}

.news-filter-btn .filter-count {
  font-size: 0.72rem;
  background: var(--gray-100);
  color: var(--gray-500);
  padding: 1px 7px;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.news-filter-btn.active .filter-count {
  background: rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.9);
}

.news-result-info {
  font-size: 0.82rem;
  color: var(--gray-400);
  white-space: nowrap;
}

.news-result-info strong {
  color: var(--navy);
  font-weight: 600;
}

/* News Module Header (three modules: tech-tips, frontier, publications) */
.news-module-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--gray-100);
}

.news-module-header .module-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.news-module-header .module-icon svg {
  width: 22px;
  height: 22px;
}

.news-module-header .module-icon.tech-tips {
  background: #FFF7ED;
  color: #EA580C;
}

.news-module-header .module-icon.frontier {
  background: #EFF6FF;
  color: #2563EB;
}

.news-module-header .module-icon.publications {
  background: #F0FDFA;
  color: #0D9488;
}

.news-module-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--navy);
  margin: 0;
}

.news-module-header p {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin: 0;
}

.news-module-header .module-count {
  margin-left: auto;
  font-size: 0.82rem;
  color: var(--gray-400);
  white-space: nowrap;
}

.news-module-header .module-count strong {
  color: var(--primary);
  font-weight: 600;
  font-size: 1rem;
}

/* Section gray background for alternating modules */
.section-gray {
  background: var(--gray-50);
}

/* Product badge for publication articles */
.news-product-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: #F0FDFA;
  color: #0D9488;
  border: 1px solid #5EEAD4;
  border-radius: 10px;
  font-size: 0.72rem;
  font-weight: 600;
  margin-right: 6px;
}

.news-product-badge svg {
  width: 12px;
  height: 12px;
}

/* News List - Clean horizontal layout */
.news-list-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.news-list-card {
  display: flex;
  align-items: stretch;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--gray-100);
  transition: all var(--transition-fast);
  position: relative;
  text-decoration: none;
  color: inherit;
}

.news-list-card:first-child {
  border-top: 1px solid var(--gray-100);
}

.news-list-card:hover {
  background: var(--gray-50);
}

.news-list-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gray-200);
  transition: background var(--transition-fast);
}

.news-list-card:hover::before {
  background: var(--primary);
}

.news-list-card.cat-exp-guide::before { background: #3B82F6; }
.news-list-card.cat-tech-tip::before { background: var(--primary); }
.news-list-card.cat-guide::before { background: var(--success); }
.news-list-card.cat-frontier::before { background: #8B5CF6; }

.news-list-card-left {
  flex-shrink: 0;
  width: 120px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  padding-top: 2px;
}

.news-cat-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
}

.news-cat-badge.cat-exp-guide { background: #EFF6FF; color: #2563EB; }
.news-cat-badge.cat-tech-tip { background: var(--primary-lighter); color: var(--primary); }
.news-cat-badge.cat-guide { background: #ECFDF5; color: #059669; }
.news-cat-badge.cat-frontier { background: #F5F3FF; color: #7C3AED; }

.news-list-date {
  font-size: 0.75rem;
  color: var(--gray-400);
  font-weight: 500;
}

.news-list-card-body {
  flex: 1;
  padding-left: var(--space-md);
}

.news-list-card-body h4 {
  font-size: 1.05rem;
  color: var(--navy);
  margin-bottom: 6px;
  line-height: 1.5;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.news-list-card:hover .news-list-card-body h4 {
  color: var(--primary);
}

.news-list-card-body p {
  font-size: 0.85rem;
  color: var(--gray-500);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-list-arrow {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  padding-left: var(--space-md);
  color: var(--gray-300);
  transition: color var(--transition-fast);
}

.news-list-card:hover .news-list-arrow {
  color: var(--primary);
}

.news-list-arrow svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.news-list-card:hover .news-list-arrow svg {
  transform: translateX(4px);
}

/* No results message */
.news-no-results {
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
  color: var(--gray-400);
  display: none;
}

.news-no-results.show {
  display: block;
}

.news-no-results svg {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-sm);
  color: var(--gray-300);
}

/* ============================================
   Contact Page Styles
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-2xl);
}

.contact-info-card {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.contact-info-card::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 200px;
  height: 200px;
  background: rgba(255,255,255,0.04);
  border-radius: 50%;
}

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

.contact-info-card > p {
  color: rgba(255,255,255,0.7);
  font-size: 0.92rem;
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.contact-info-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 1;
}

.contact-info-list .ci-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info-list .ci-icon svg {
  width: 20px;
  height: 20px;
  color: var(--accent);
}

.contact-info-list .ci-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 2px;
}

.contact-info-list .ci-value {
  font-size: 0.92rem;
  color: var(--white);
  font-weight: 500;
}

/* Contact Form */
.contact-form-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-200);
}

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

.contact-form-card > p {
  color: var(--gray-500);
  font-size: 0.92rem;
  margin-bottom: var(--space-lg);
}

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

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

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-group label .required {
  color: #E53E3E;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-family: var(--font-sans);
  color: var(--gray-700);
  background: var(--gray-50);
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(234, 88, 12, 0.1);
}

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

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

/* ============================================
   Product Detail List (具体产品列表)
   ============================================ */
.pd-products-section {
  margin-bottom: var(--space-2xl);
}

.pd-products-section .section-title {
  margin-bottom: var(--space-lg);
}

.pd-subcategory {
  margin-bottom: var(--space-xl);
}

.pd-subcategory h4 {
  font-size: 1.1rem;
  color: var(--dark);
  margin-bottom: var(--space-md);
  padding-left: 14px;
  border-left: 4px solid var(--primary);
  line-height: 1.4;
}

.pd-product-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
}

.pd-product-table thead {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
}

.pd-product-table thead th {
  padding: 14px 16px;
  text-align: left;
  color: var(--white);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.pd-product-table tbody tr {
  border-bottom: 1px solid var(--gray-100);
  transition: background var(--transition-fast);
}

.pd-product-table tbody tr:last-child {
  border-bottom: none;
}

.pd-product-table tbody tr:hover {
  background: var(--gray-50);
}

.pd-product-table tbody td {
  padding: 14px 16px;
  font-size: 0.88rem;
  color: var(--gray-700);
  vertical-align: middle;
}

.pd-product-table .pd-name {
  font-weight: 600;
  color: var(--dark);
  min-width: 160px;
}

.pd-product-table .pd-cat {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.82rem;
  color: var(--primary);
  font-weight: 600;
  white-space: nowrap;
}

.pd-product-table .pd-spec {
  color: var(--gray-500);
  font-size: 0.82rem;
  min-width: 200px;
}

.pd-product-table .pd-price {
  color: var(--gray-500);
  font-size: 0.82rem;
  white-space: nowrap;
  text-decoration: line-through;
}

.pd-product-table .pd-discount {
  color: #DC2626;
  font-size: 0.88rem;
  font-weight: 600;
  white-space: nowrap;
}

/* Multi-line cells for merged L/M/S variants */
.pd-product-table .pd-spec,
.pd-product-table .pd-price,
.pd-product-table .pd-discount {
  line-height: 1.8;
}

.pd-product-table .pd-action {
  text-align: center;
  white-space: nowrap;
}

.pdf-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  background: #FEF3C7;
  color: #92400E;
  border: 1px solid #FCD34D;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.pdf-link:hover {
  background: #FDE68A;
  border-color: #F59E0B;
  transform: translateY(-1px);
}

.pdf-link svg {
  width: 14px;
  height: 14px;
}

.pdf-link.no-pdf {
  background: var(--gray-100);
  color: var(--gray-400);
  border-color: var(--gray-200);
  cursor: default;
}

.pdf-link.no-pdf:hover {
  background: var(--gray-100);
  border-color: var(--gray-200);
  transform: none;
}

/* COA link - distinct teal/green color to differentiate from 说明书 */
.coa-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  background: #CCFBF1;
  color: #0F766E;
  border: 1px solid #5EEAD4;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.coa-link:hover {
  background: #14B8A6;
  color: #fff;
  border-color: #0D9488;
  transform: translateY(-1px);
}

.coa-link svg {
  width: 14px;
  height: 14px;
}

.pd-note {
  background: #FEF9C3;
  border: 1px solid #FDE047;
  border-radius: var(--radius-md);
  padding: 12px 16px;
  margin-bottom: var(--space-lg);
  font-size: 0.85rem;
  color: #713F12;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.pd-note svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 1px;
  color: #CA8A04;
}

@media (max-width: 768px) {
  .pd-product-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  .pd-product-table thead {
    display: table-header-group;
  }

  .pd-product-table tbody tr {
    display: table-row;
  }
}

/* ============================================
   Animations
   ============================================ */
.fade-up {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up:nth-child(2) { transition-delay: 0.06s; }
.fade-up:nth-child(3) { transition-delay: 0.12s; }
.fade-up:nth-child(4) { transition-delay: 0.18s; }
.fade-up:nth-child(5) { transition-delay: 0.24s; }
.fade-up:nth-child(6) { transition-delay: 0.30s; }

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

  .hero-visual {
    display: none;
  }

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

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

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

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

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

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

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

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

  .products-hero-grid {
    grid-template-columns: 1fr;
  }

  .news-list-grid {
    grid-template-columns: 1fr;
  }

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

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

  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    flex-direction: column;
    padding: var(--space-lg);
    gap: 4px;
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
  }

  .nav-menu.active {
    transform: translateX(0);
  }

  .nav-menu a {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
  }

  .nav-cta {
    margin-left: 0;
    margin-top: var(--space-sm);
  }

  .nav-search-item {
    margin-left: 0;
    margin-top: var(--space-sm);
    width: 100%;
  }

  .nav-search-form {
    width: 100%;
  }

  .nav-search-input {
    width: 100%;
    padding: 12px 44px 12px 16px;
    font-size: 1rem;
  }

  .nav-search-input:focus {
    width: 100%;
  }

  .nav-search-btn {
    width: 32px;
    height: 32px;
  }

  .nav-search-btn svg {
    width: 16px;
    height: 16px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }

  .nav-dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    display: block;
    box-shadow: none;
    border: none;
    padding: 0 0 0 16px;
    background: transparent;
    min-width: auto;
  }

  .nav-has-dropdown > a::before {
    display: none;
  }

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

  .hero {
    padding: var(--space-2xl) 0;
    text-align: center;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-md);
  }

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

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }

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

  .news-list-card {
    flex-direction: column;
    padding: var(--space-sm) var(--space-md);
  }

  .news-list-card-left {
    width: 100%;
    flex-direction: row;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: 6px;
  }

  .news-list-card-body {
    padding-left: 0;
  }

  .news-list-arrow {
    display: none;
  }

  .news-filter-bar {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ============================================
   Search Components
   ============================================ */

.search-page {
  min-height: 60vh;
}

.search-header {
  background: linear-gradient(135deg, #F8FAFC 0%, #F1F5F9 100%);
  padding: var(--space-2xl) 0 var(--space-xl);
}

.search-header h1 {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.search-header p {
  color: var(--gray-600);
  margin-bottom: var(--space-md);
}

.search-box-large {
  max-width: 700px;
  position: relative;
}

.search-box-large input {
  width: 100%;
  padding: 16px 56px 16px 24px;
  border: 2px solid var(--gray-200);
  border-radius: 999px;
  font-size: 1.05rem;
  background: var(--white);
  transition: all var(--transition-fast);
}

.search-box-large input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(234, 88, 12, 0.1);
}

.search-box-large button {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--primary);
  border: none;
  color: var(--white);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.search-tabs {
  display: flex;
  gap: var(--space-sm);
  margin: var(--space-md) 0;
  border-bottom: 1px solid var(--gray-200);
  padding-bottom: var(--space-sm);
}

.search-tab {
  padding: 8px 18px;
  border: 1px solid var(--gray-200);
  background: var(--white);
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--gray-600);
  transition: all var(--transition-fast);
}

.search-tab.active,
.search-tab:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.search-count {
  color: var(--gray-500);
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
}

.search-results {
  display: grid;
  gap: var(--space-md);
}

.search-result-item {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  transition: all var(--transition-fast);
}

.search-result-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

.search-result-item h4 {
  font-size: 1.1rem;
  margin-bottom: 6px;
  color: var(--dark);
}

.sr-badge {
  display: inline-block;
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
  font-weight: 600;
}

.sr-badge-manual {
  background: var(--primary-lighter);
  color: var(--primary);
}

.sr-badge-coa {
  background: #FEF3C7;
  color: #B45309;
}

.sr-meta {
  font-size: 0.88rem;
  color: var(--gray-500);
  margin-bottom: 6px;
}

.sr-spec {
  font-size: 0.88rem;
  color: var(--gray-600);
  margin-bottom: 12px;
}

.sr-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-sm {
  padding: 7px 16px;
  font-size: 0.85rem;
}

.search-empty,
.search-loading {
  text-align: center;
  padding: var(--space-2xl) 0;
  color: var(--gray-500);
}

.coa-search-form {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  max-width: 600px;
  margin: 0 auto var(--space-xl);
}

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

.coa-form-row label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--gray-700);
}

.coa-form-row input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
}

.coa-form-row input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(234, 88, 12, 0.1);
}

.coa-instructions {
  background: var(--gray-50);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-top: var(--space-xl);
}

.coa-instructions h3 {
  margin-bottom: var(--space-sm);
}

.coa-instructions ul {
  padding-left: 18px;
  color: var(--gray-600);
}

.coa-instructions li {
  margin-bottom: 8px;
}

@media (max-width: 991px) {
  .nav-cta {
    margin-left: 0;
    margin-top: 8px;
  }

  .nav-cta + .nav-cta {
    margin-left: 0;
    margin-top: 8px;
  }
}

@media (min-width: 992px) {
}

/* ===== Article Page Styles ===== */
.article-hero {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%);
  color: var(--white);
  padding: var(--space-3xl) 0 var(--space-2xl);
}

.article-hero .container {
  max-width: 800px;
}

.article-hero h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: var(--space-md);
  color: var(--white);
}

.article-meta-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.article-meta-bar .news-tag {
  background: rgba(255,255,255,0.2);
  color: var(--white);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
}

.article-meta-bar .article-date {
  font-size: 0.9rem;
  opacity: 0.85;
}

.article-body {
  padding: var(--space-2xl) 0;
}

.article-body .container {
  max-width: 800px;
}

.article-content {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--gray-700);
}

.article-content p {
  margin-bottom: var(--space-md);
}

.article-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--navy);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--gray-200);
}

.article-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--navy);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.article-content h4 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-top: var(--space-md);
  margin-bottom: var(--space-sm);
}

.article-content ol,
.article-content ul {
  margin-bottom: var(--space-md);
  padding-left: 1.5em;
}

.article-content ol li,
.article-content ul li {
  margin-bottom: 6px;
  line-height: 1.8;
}

.article-content strong {
  color: var(--gray-800);
  font-weight: 600;
}

.article-content .article-note {
  background: #fff8e1;
  border-left: 3px solid #ffa000;
  padding: 12px 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: var(--space-md) 0;
  font-size: 0.95rem;
  color: var(--gray-700);
}

.article-content .article-tip {
  background: #e8f5e9;
  border-left: 3px solid #43a047;
  padding: 12px 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: var(--space-md) 0;
  font-size: 0.95rem;
  color: var(--gray-700);
}

.article-content .article-figure {
  text-align: center;
  margin: var(--space-lg) 0;
  padding: var(--space-md);
  background: var(--gray-50);
  border-radius: var(--radius);
  color: var(--gray-500);
  font-size: 0.9rem;
  font-style: italic;
}

.article-content .article-figure-placeholder {
  width: 100%;
  min-height: 120px;
  background: linear-gradient(135deg, #f0f4f8 0%, #e3eaf0 100%);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
  color: var(--gray-400);
}

.article-content .article-product-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-md) 0;
  font-size: 0.9rem;
}

.article-content .article-product-table th {
  background: var(--gray-100);
  color: var(--navy);
  font-weight: 600;
  padding: 10px 14px;
  text-align: left;
  border: 1px solid var(--gray-200);
}

.article-content .article-product-table td {
  padding: 10px 14px;
  border: 1px solid var(--gray-200);
  color: var(--gray-700);
}

.article-content .article-product-table tr:nth-child(even) td {
  background: var(--gray-50);
}

.article-ref-section {
  background: #F0F9FF;
  border: 1.5px solid #BAE6FD;
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin: var(--space-lg) 0;
}

.article-ref-section h3 {
  color: #0369A1;
  font-size: 1.1rem;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.article-ref-section h3 svg {
  width: 20px;
  height: 20px;
}

.article-ref-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.article-ref-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: white;
  border: 1px solid #BAE6FD;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.article-ref-card:hover {
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(234, 88, 12, 0.15);
  transform: translateY(-1px);
}

.article-ref-card-cat {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  background: rgba(234, 88, 12, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
  white-space: nowrap;
}

.article-ref-card-name {
  font-size: 0.82rem;
  color: var(--navy);
  font-weight: 500;
  line-height: 1.4;
}

.article-content .article-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  font-size: 0.85rem;
  font-weight: 600;
  margin-right: 8px;
  flex-shrink: 0;
}

.article-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--gray-200);
  margin-top: var(--space-2xl);
}

.article-nav a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

.article-nav a:hover {
  color: var(--primary-dark);
}

.article-back-list {
  text-align: center;
  margin-top: var(--space-xl);
}

.article-back-list a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 500;
  font-size: 0.95rem;
}

@media (max-width: 768px) {
  .article-content {
    font-size: 0.95rem;
  }

  .article-content h2 {
    font-size: 1.2rem;
  }

  .article-content h3 {
    font-size: 1.05rem;
  }

  .article-product-table {
    font-size: 0.85rem;
  }

  .article-product-table th,
  .article-product-table td {
    padding: 8px 10px;
  }
}