/* ============================================
   Modern Paint - Global B2B Coating Website
   Theme: Professional / Clean / Minimal
   ============================================ */

/* === CSS Variables === */
:root {
  --color-primary: #2d3436;
  --color-primary-dark: #1a1f21;
  --color-primary-light: #4a5255;
  --color-accent: #b8a07a;
  --color-accent-light: #d4c5a9;
  --color-accent-dark: #9a8560;
  --color-sand: #f5f2ec;
  --color-sand-dark: #e8e2d6;
  --color-bg: #ffffff;
  --color-bg-alt: #f8f9fa;
  --color-text: #2d3436;
  --color-text-light: #636e72;
  --color-text-muted: #b2bec3;
  --color-border: #e0e0e0;
  --color-border-light: #f0f0f0;
  --color-white: #ffffff;
  --color-success: #27ae60;
  --color-error: #e74c3c;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition: all 0.3s ease;
  --font-sans: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  --max-width: 1200px;
}

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-accent-dark); }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--color-primary); }
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.1rem; }
p { margin-bottom: 1rem; }
input, textarea, select, button { font-family: inherit; font-size: inherit; }

/* === Layout === */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
main { min-height: 60vh; }

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 50px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: center;
  line-height: 1.4;
  letter-spacing: 0.3px;
}
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-lg { padding: 16px 40px; font-size: 1rem; }
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(45, 52, 54, 0.25);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(45, 52, 54, 0.35);
  color: var(--color-white);
}
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(45, 52, 54, 0.2);
}
.btn-outline-light {
  background: rgba(255,255,255,0.1);
  color: var(--color-white);
  border-color: rgba(255,255,255,0.5);
  backdrop-filter: blur(4px);
}
.btn-outline-light:hover {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

/* === Top Bar === */
.top-bar {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.7);
  font-size: 0.82rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.top-bar .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.top-bar-left { display: flex; gap: 24px; flex-wrap: wrap; }
.top-bar-left span { display: inline-flex; align-items: center; gap: 6px; }
.top-bar-right { font-weight: 500; color: var(--color-accent-light); letter-spacing: 0.5px; }

/* === Header === */
.header {
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}
.header .container { display: flex; align-items: center; justify-content: space-between; padding-top: 0; padding-bottom: 0; height: 76px; }
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo-mark {
  width: 44px; height: 44px;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.1rem;
  border-radius: var(--radius-sm);
  letter-spacing: -1px;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text strong { font-size: 1.15rem; color: var(--color-primary); font-weight: 800; }
.logo-text small { font-size: 0.72rem; color: var(--color-text-light); letter-spacing: 1px; text-transform: uppercase; }

/* === Navigation === */
.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  position: relative;
}
.nav a:hover, .nav a.active { color: var(--color-accent-dark); background: var(--color-sand); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--color-primary); transition: var(--transition); }

/* === Hero === */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%, var(--color-primary-light) 100%);
  color: var(--color-white);
  padding: 100px 0 90px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 50%;
  background: linear-gradient(135deg, transparent 30%, rgba(184,160,122,0.15) 100%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 60px;
  background: var(--color-bg);
  clip-path: polygon(0 100%, 100% 100%, 100% 30%, 0 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 780px; }
.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50px;
  font-size: 0.82rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 28px;
  color: var(--color-accent-light);
  font-weight: 600;
}
.hero h1 { font-size: 3rem; color: var(--color-white); margin-bottom: 20px; line-height: 1.15; font-weight: 800; }
.hero h1 span { color: var(--color-accent-light); }
.hero-subtitle { font-size: 1.25rem; color: rgba(255,255,255,0.9); margin-bottom: 16px; font-weight: 500; }
.hero-desc { font-size: 1rem; color: rgba(255,255,255,0.7); margin-bottom: 36px; max-width: 640px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats { display: flex; gap: 40px; flex-wrap: wrap; padding-top: 36px; border-top: 1px solid rgba(255,255,255,0.15); }
.stat-item { display: flex; flex-direction: column; }
.stat-item strong { font-size: 2rem; font-weight: 800; color: var(--color-accent-light); line-height: 1; }
.stat-item span { font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-top: 6px; text-transform: uppercase; letter-spacing: 0.5px; }

/* === Sections === */
.section { padding: 80px 0; }
.section-header { text-align: center; max-width: 700px; margin: 0 auto 56px; }
.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: 16px;
  position: relative;
  padding: 0 20px;
}
.section-tag::before, .section-tag::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 12px;
  height: 1px;
  background: var(--color-accent);
}
.section-tag::before { left: 0; }
.section-tag::after { right: 0; }
.section-header h2 { font-size: 2.2rem; margin-bottom: 16px; }
.section-header p { color: var(--color-text-light); font-size: 1.05rem; }
.section-center { text-align: center; margin-top: 48px; }

/* === Features Grid (Why Partner) === */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.1);
  border-color: var(--color-accent-light);
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 60px; height: 60px;
  background: linear-gradient(135deg, var(--color-sand) 0%, var(--color-sand-dark) 100%);
  color: var(--color-accent-dark);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 24px;
  transition: all 0.3s ease;
}
.feature-card:hover .feature-icon {
  background: var(--color-accent);
  color: var(--color-white);
}
.feature-card h3 { margin-bottom: 12px; font-size: 1.15rem; }
.feature-card p { color: var(--color-text-light); font-size: 0.92rem; margin-bottom: 0; }

/* === Products === */
.products-section { background: var(--color-bg-alt); }
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 24px;
}
.product-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.12);
  border-color: var(--color-accent-light);
}
.product-image {
  position: relative;
  aspect-ratio: 4/3;
  background: var(--color-sand);
  overflow: hidden;
}
.product-image img {
  transition: transform 0.5s ease;
}
.product-card:hover .product-image img {
  transform: scale(1.05);
}
.product-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--color-sand) 0%, var(--color-sand-dark) 100%);
}
.product-placeholder.large { aspect-ratio: auto; }
.product-icon { color: var(--color-accent-dark); opacity: 0.6; }
.placeholder-text { color: var(--color-text-light); font-size: 0.85rem; margin-top: 12px; }
.product-badge {
  position: absolute;
  top: 12px; right: 12px;
  background: var(--color-accent);
  color: var(--color-white);
  padding: 4px 12px;
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.product-badge.large { top: 20px; right: 20px; padding: 8px 20px; font-size: 0.85rem; }
.product-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.product-body h3 { margin-bottom: 10px; font-size: 1.1rem; }
.product-body h3 a { color: var(--color-primary); }
.product-body h3 a:hover { color: var(--color-accent-dark); }
.product-body p { color: var(--color-text-light); font-size: 0.88rem; flex: 1; margin-bottom: 16px; }
.product-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.product-link:hover { gap: 8px; }
.product-meta { margin-bottom: 12px; }
.product-cat {
  display: inline-block;
  font-size: 0.72rem;
  padding: 3px 10px;
  background: var(--color-sand);
  color: var(--color-accent-dark);
  border-radius: 50px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* === Partners === */
.partners-section { background: var(--color-primary-dark); color: var(--color-white); }
.partners-section .section-header h2 { color: var(--color-white); }
.partners-section .section-header p { color: rgba(255,255,255,0.7); }
.partner-types {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}
.partner-type {
  text-align: center;
  padding: 28px 20px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.partner-type:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }
.pt-icon { font-size: 2.2rem; margin-bottom: 12px; }
.partner-type h4 { color: var(--color-white); margin-bottom: 8px; font-size: 1rem; }
.partner-type p { color: rgba(255,255,255,0.6); font-size: 0.82rem; margin-bottom: 0; }
.partner-benefits {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 40px;
}
.benefit-item {
  padding: 10px 22px;
  background: rgba(184,160,122,0.15);
  border: 1px solid rgba(184,160,122,0.3);
  border-radius: 50px;
  font-size: 0.88rem;
  color: var(--color-accent-light);
  font-weight: 500;
}

/* === OEM Section === */
.oem-section { background: var(--color-sand); }
.oem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.oem-content h2 { margin-bottom: 20px; }
.oem-content p { color: var(--color-text-light); margin-bottom: 24px; }
.oem-features { margin-bottom: 32px; }
.oem-features li {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text);
  font-size: 0.95rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.oem-features li::before { content: '✓'; color: var(--color-accent-dark); font-weight: 700; flex-shrink: 0; }
.oem-features li strong { color: var(--color-primary); }
.oem-visual { display: flex; justify-content: center; }
.oem-visual-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  max-width: 360px;
  width: 100%;
}
.ovc-label {
  display: inline-block;
  padding: 6px 16px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.ovc-bucket { margin-bottom: 24px; }
.bucket-lid { width: 120px; height: 16px; background: var(--color-primary); border-radius: 4px 4px 0 0; margin: 0 auto; }
.bucket-body {
  width: 140px; height: 160px;
  background: linear-gradient(180deg, var(--color-sand-dark) 0%, var(--color-accent-light) 100%);
  border-radius: 0 0 12px 12px;
  margin: 0 auto;
  display: flex; align-items: center; justify-content: center;
  border: 2px solid var(--color-accent);
}
.bucket-label {
  background: var(--color-white);
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--color-primary);
  text-align: center;
  line-height: 1.3;
  box-shadow: var(--shadow-sm);
}
.ovc-text { font-weight: 700; color: var(--color-primary); font-size: 0.95rem; margin-bottom: 6px; }
.ovc-sub { color: var(--color-text-light); font-size: 0.82rem; }

/* === Applications === */
.app-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.app-card {
  padding: 32px 28px;
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition);
}
.app-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--color-accent-light); }
.app-icon { font-size: 2.5rem; margin-bottom: 16px; }
.app-card h3 { margin-bottom: 10px; font-size: 1.1rem; }
.app-card p { color: var(--color-text-light); font-size: 0.88rem; margin-bottom: 0; }

/* === Global Markets === */
.markets-section { background: var(--color-bg-alt); }
.markets-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.market-card {
  padding: 28px 24px;
  background: var(--color-white);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  transition: var(--transition);
}
.market-card:hover { transform: translateX(6px); box-shadow: var(--shadow-md); }
.market-card h3 { margin-bottom: 8px; font-size: 1.1rem; }
.market-card p { color: var(--color-text-light); font-size: 0.85rem; margin-bottom: 0; }

/* === Technical Center === */
.technical-section { background: var(--color-white); }
.technical-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.tech-resources {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}
.tech-resource {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  background: var(--color-sand);
  border-radius: var(--radius-md);
  transition: var(--transition);
  text-decoration: none;
}
.tech-resource:hover { background: var(--color-sand-dark); transform: translateY(-2px); }
.tr-icon { font-size: 1.6rem; flex-shrink: 0; }
.tech-resource strong { display: block; color: var(--color-primary); font-size: 0.95rem; }
.tech-resource small { color: var(--color-text-light); font-size: 0.78rem; }

/* FAQ */
.faq-list { margin-top: 24px; }
.faq-item { margin-bottom: 12px; border: 1px solid var(--color-border-light); border-radius: var(--radius-md); overflow: hidden; }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  background: var(--color-white);
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-primary);
  text-align: left;
  transition: var(--transition);
  gap: 16px;
}
.faq-question:hover, .faq-question.active { background: var(--color-sand); color: var(--color-accent-dark); }
.faq-question em { font-style: normal; font-size: 1.4rem; font-weight: 300; flex-shrink: 0; transition: var(--transition); }
.faq-question.active em { transform: rotate(45deg); }
.faq-answer { display: none; padding: 0 22px 20px; color: var(--color-text-light); font-size: 0.92rem; }
.faq-answer p { margin-bottom: 0; }

/* === Factory === */
.factory-section { background: var(--color-bg-alt); }
.factory-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 24px; }
.factory-card {
  padding: 32px 28px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  transition: var(--transition);
}
.factory-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.fc-icon { font-size: 2.2rem; margin-bottom: 16px; }
.factory-card h3 { margin-bottom: 10px; font-size: 1.1rem; }
.factory-card p { color: var(--color-text-light); font-size: 0.88rem; margin-bottom: 0; }

/* === Articles === */
.articles-section { background: var(--color-white); }
.article-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 28px; }
.article-card {
  padding: 28px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  transition: var(--transition);
  border: 1px solid transparent;
}
.article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--color-border-light); background: var(--color-white); }
.article-meta { font-size: 0.78rem; color: var(--color-text-muted); margin-bottom: 12px; display: flex; gap: 16px; }
.article-card h3 { margin-bottom: 10px; font-size: 1.1rem; line-height: 1.4; }
.article-card h3 a { color: var(--color-primary); }
.article-card h3 a:hover { color: var(--color-accent-dark); }
.article-card p { color: var(--color-text-light); font-size: 0.88rem; margin-bottom: 16px; }
.article-link { font-size: 0.88rem; font-weight: 600; color: var(--color-accent-dark); }

/* === CTA Section === */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  padding: 70px 0;
  text-align: center;
}
.cta-content h2 { color: var(--color-white); font-size: 2rem; margin-bottom: 14px; }
.cta-content p { color: rgba(255,255,255,0.75); font-size: 1.05rem; margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* === Footer === */
.footer { background: var(--color-primary-dark); color: rgba(255,255,255,0.7); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.footer-col h4 { color: var(--color-white); margin-bottom: 20px; font-size: 1rem; font-weight: 700; }
.footer-col a { display: block; color: rgba(255,255,255,0.6); font-size: 0.88rem; padding: 5px 0; transition: var(--transition); }
.footer-col a:hover { color: var(--color-accent-light); padding-left: 4px; }
.footer-about p { font-size: 0.88rem; line-height: 1.7; margin-bottom: 20px; }
.footer-contact .contact-item { font-size: 0.85rem; padding: 4px 0; }
.ci-label { color: var(--color-accent-light); font-weight: 600; margin-right: 6px; }
.footer-cta { margin-top: 16px; }
.footer-social { margin-top: 20px; display: flex; gap: 16px; flex-wrap: wrap; }
.footer-social a { font-size: 0.85rem; color: var(--color-accent-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 24px 0;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.5); display: inline; }
.footer-bottom a:hover { color: var(--color-accent-light); }

/* === Float CTA === */
.float-cta { position: fixed; right: 20px; bottom: 80px; z-index: 999; display: flex; flex-direction: column; gap: 10px; }
.float-btn {
  width: 48px; height: 48px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  color: var(--color-white);
  font-size: 1.1rem;
}
.float-btn:hover { transform: scale(1.1); }
.float-btn.whatsapp { background: #25D366; }
.float-btn.email { background: var(--color-primary); }
.float-btn.top { background: var(--color-accent); }

/* === Page Header === */
.page-header {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  padding: 60px 0 50px;
  position: relative;
  overflow: hidden;
}
.page-header::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 40px;
  background: var(--color-bg);
  clip-path: polygon(0 100%, 100% 100%, 100% 40%, 0 100%);
}
.page-header h1 { color: var(--color-white); font-size: 2.2rem; margin-bottom: 10px; position: relative; z-index: 2; }
.page-header p { color: rgba(255,255,255,0.75); font-size: 1.05rem; margin-bottom: 0; position: relative; z-index: 2; }
.breadcrumb { font-size: 0.85rem; color: rgba(255,255,255,0.5); margin-top: 16px; position: relative; z-index: 2; }
.breadcrumb a { color: rgba(255,255,255,0.7); }
.breadcrumb a:hover { color: var(--color-accent-light); }
.breadcrumb span { color: var(--color-accent-light); }

/* === Product List === */
.product-list-layout { display: grid; grid-template-columns: 260px 1fr; gap: 40px; }
.product-sidebar { position: sticky; top: 100px; align-self: start; }
.product-sidebar h3 { font-size: 1.05rem; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--color-accent); }
.category-list { margin-bottom: 32px; }
.category-list li { margin-bottom: 4px; }
.category-list a {
  display: block;
  padding: 10px 16px;
  font-size: 0.9rem;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.category-list a:hover, .category-list a.active { background: var(--color-sand); color: var(--color-accent-dark); font-weight: 600; }
.sidebar-hot { margin-bottom: 28px; }
.hot-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border-light);
  font-size: 0.88rem;
  color: var(--color-text);
}
.hot-item:hover { color: var(--color-accent-dark); }
.hot-num {
  width: 24px; height: 24px;
  background: var(--color-sand);
  color: var(--color-accent-dark);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}
.sidebar-cta {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 24px;
  border-radius: var(--radius-md);
}
.sidebar-cta h3 { color: var(--color-white); border-bottom-color: rgba(255,255,255,0.2); }
.sidebar-cta p { color: rgba(255,255,255,0.7); font-size: 0.85rem; margin-bottom: 16px; }
.sidebar-cta .btn { background: var(--color-accent); border-color: var(--color-accent); }
.sidebar-cta .btn:hover { background: var(--color-accent-dark); border-color: var(--color-accent-dark); }

/* === Pagination === */
.pagination-wrap { display: flex; justify-content: center; margin-top: 40px; }
ul.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}
ul.pagination li { list-style: none; margin: 0; }
ul.pagination li a,
ul.pagination li span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--color-text);
  background: var(--color-white);
  transition: var(--transition);
  text-decoration: none;
}
ul.pagination li a:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
ul.pagination li.active span,
ul.pagination li.active a {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
ul.pagination li.disabled span,
ul.pagination li.disabled a {
  color: var(--color-text-muted);
  background: var(--color-bg);
  cursor: not-allowed;
  opacity: 0.6;
}

/* === Product Detail === */
.product-detail-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-bottom: 60px; }
.product-gallery { position: relative; }
.main-image {
  aspect-ratio: 1;
  background: var(--color-sand);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-info .product-category-tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--color-sand);
  color: var(--color-accent-dark);
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.product-info h1 { font-size: 2rem; margin-bottom: 16px; }
.product-short-desc { color: var(--color-text-light); font-size: 1.05rem; margin-bottom: 28px; line-height: 1.7; }
.product-key-points {
  background: var(--color-bg-alt);
  padding: 24px;
  border-radius: var(--radius-md);
  margin-bottom: 28px;
}
.pkp-item { padding: 8px 0; font-size: 0.92rem; border-bottom: 1px solid var(--color-border-light); }
.pkp-item:last-child { border-bottom: none; }
.pkp-item strong { color: var(--color-primary); min-width: 120px; display: inline-block; }
.product-actions { display: flex; gap: 12px; margin-bottom: 24px; flex-wrap: wrap; }
.product-contact { font-size: 0.9rem; color: var(--color-text-light); }
.product-contact p { margin-bottom: 6px; }
.product-contact strong { color: var(--color-primary); }

/* Product Tabs */
.product-tabs { margin-bottom: 60px; }
.tab-nav {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--color-border);
  margin-bottom: 32px;
  overflow-x: auto;
  flex-wrap: nowrap;
}
.tab-btn {
  padding: 14px 22px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text-light);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: var(--transition);
  white-space: nowrap;
}
.tab-btn:hover { color: var(--color-primary); }
.tab-btn.active { color: var(--color-accent-dark); border-bottom-color: var(--color-accent); }
.tab-pane { display: none; }
.tab-pane.active { display: block; }
.tab-pane h3 { margin-bottom: 20px; font-size: 1.4rem; }
.tab-pane h4 { margin: 24px 0 12px; font-size: 1.1rem; }
.tab-pane p, .tab-pane li { color: var(--color-text-light); font-size: 0.95rem; line-height: 1.8; }
.tab-pane ul { padding-left: 20px; margin-bottom: 16px; }
.tab-pane ul li { list-style: disc; margin-bottom: 8px; }
.feature-list { padding-left: 0 !important; }
.feature-list li { list-style: none !important; padding: 10px 0 10px 28px; position: relative; border-bottom: 1px solid var(--color-border-light); }
.feature-list li::before { content: '✓'; position: absolute; left: 0; color: var(--color-accent-dark); font-weight: 700; }
.tech-table { width: 100%; border-collapse: collapse; margin-bottom: 16px; }
.tech-table th, .tech-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--color-border-light); font-size: 0.9rem; }
.tech-table th { background: var(--color-sand); color: var(--color-primary); font-weight: 700; width: 40%; }
.tech-table td { color: var(--color-text-light); }
.note { font-size: 0.82rem; color: var(--color-text-muted); font-style: italic; }

/* Related Products */
.related-products h3 { margin-bottom: 28px; font-size: 1.5rem; }

/* === Page Content === */
.page-content { max-width: 900px; margin: 0 auto; }
.page-content h2 { margin: 40px 0 20px; font-size: 1.6rem; padding-bottom: 12px; border-bottom: 2px solid var(--color-sand); }
.page-content h3 { margin: 28px 0 14px; font-size: 1.25rem; }
.page-content p { color: var(--color-text-light); line-height: 1.85; margin-bottom: 16px; }
.page-content ul { padding-left: 24px; margin-bottom: 20px; }
.page-content ul li { list-style: disc; color: var(--color-text-light); margin-bottom: 8px; line-height: 1.7; }
.lead-text { font-size: 1.15rem !important; color: var(--color-text) !important; font-weight: 500; }

/* Contact Form */
.contact-form-section { margin-top: 60px; }
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 48px; }
.contact-info h2 { margin-bottom: 24px; }
.contact-detail-list { margin-bottom: 32px; }
.cd-item { display: flex; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--color-border-light); }
.cd-icon { font-size: 1.6rem; flex-shrink: 0; width: 48px; height: 48px; background: var(--color-sand); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; }
.cd-item h4 { margin-bottom: 4px; font-size: 0.95rem; }
.cd-item p { color: var(--color-text-light); font-size: 0.88rem; margin-bottom: 2px; }
.contact-form-wrap h2 { margin-bottom: 12px; }
.form-desc { color: var(--color-text-light); margin-bottom: 28px; font-size: 0.95rem; }
.inquiry-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.88rem; font-weight: 600; color: var(--color-primary); margin-bottom: 8px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  transition: var(--transition);
  background: var(--color-white);
}
.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(184,160,122,0.15);
}
.checkbox-group { display: flex; flex-wrap: wrap; gap: 12px 20px; }
.checkbox-group label { display: flex; align-items: center; gap: 8px; font-weight: 400; font-size: 0.88rem; cursor: pointer; margin-bottom: 0; }
.checkbox-group input[type="checkbox"] { width: auto; accent-color: var(--color-accent); }
.form-note { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 16px; }
.form-success { text-align: center; padding: 60px 20px; }
.form-success h3 { color: var(--color-success); font-size: 1.5rem; margin-bottom: 16px; }
.form-success p { color: var(--color-text-light); }

/* Distributor page */
.distributor-content, .oem-content-page, .factory-content-page, .technical-content-page, .about-content-page, .projects-content-page, .applications-content-page { max-width: 1000px; margin: 0 auto; }
.process-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 24px; margin: 32px 0 48px; }
.step-item {
  padding: 28px 24px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-accent);
  position: relative;
}
.step-num { font-size: 2rem; font-weight: 800; color: var(--color-accent); opacity: 0.4; margin-bottom: 8px; line-height: 1; }
.step-item h4 { margin-bottom: 8px; font-size: 1.05rem; }
.step-item p { color: var(--color-text-light); font-size: 0.88rem; margin-bottom: 0; }
.cta-inline {
  background: var(--color-sand);
  padding: 40px;
  border-radius: var(--radius-lg);
  text-align: center;
  margin-top: 48px;
}
.cta-inline h3 { margin-bottom: 20px; font-size: 1.4rem; }
.oem-types { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin: 32px 0; }
.oem-type-card {
  padding: 32px;
  background: var(--color-white);
  border: 2px solid var(--color-border-light);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.oem-type-card.featured { border-color: var(--color-accent); background: var(--color-sand); }
.oem-type-card h3 { margin-bottom: 14px; font-size: 1.2rem; }
.oem-type-card p { color: var(--color-text-light); margin-bottom: 18px; font-size: 0.92rem; }
.oem-type-card ul { padding-left: 20px; }
.oem-type-card ul li { list-style: disc; color: var(--color-text-light); margin-bottom: 8px; font-size: 0.88rem; }
.factory-stats, .about-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  margin: 32px 0 48px;
  padding: 32px;
  background: var(--color-primary-dark);
  border-radius: var(--radius-lg);
}
.factory-stats .stat-item, .about-stats .stat-item { text-align: center; }
.factory-stats .stat-item strong, .about-stats .stat-item strong { font-size: 2.2rem; color: var(--color-accent-light); }
.factory-stats .stat-item span, .about-stats .stat-item span { color: rgba(255,255,255,0.6); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.5px; }
.tech-resources-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin: 32px 0; }
.tech-resource-card {
  padding: 28px 24px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition);
  text-decoration: none;
}
.tech-resource-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); background: var(--color-white); }
.trc-icon { font-size: 2.2rem; margin-bottom: 14px; }
.tech-resource-card h3 { margin-bottom: 8px; font-size: 1.05rem; }
.tech-resource-card p { color: var(--color-text-light); font-size: 0.82rem; margin-bottom: 0; }
.project-categories { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; margin: 32px 0; }
.project-cat-card { padding: 28px; background: var(--color-bg-alt); border-radius: var(--radius-md); transition: var(--transition); }
.project-cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.pcc-icon { font-size: 2.2rem; margin-bottom: 14px; }
.project-cat-card h3 { margin-bottom: 10px; font-size: 1.1rem; }
.project-cat-card p { color: var(--color-text-light); font-size: 0.88rem; margin-bottom: 0; }
.app-detail-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 28px; margin: 32px 0; }
.app-detail-card { padding: 32px; background: var(--color-white); border: 1px solid var(--color-border-light); border-radius: var(--radius-md); transition: var(--transition); }
.app-detail-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--color-accent-light); }
.app-detail-card h3 { margin-bottom: 14px; font-size: 1.15rem; }
.app-detail-card p { color: var(--color-text-light); font-size: 0.9rem; margin-bottom: 14px; }
.app-detail-card ul { padding-left: 20px; }
.app-detail-card ul li { list-style: disc; color: var(--color-text-light); font-size: 0.85rem; margin-bottom: 6px; }

/* === Article List / Detail === */
.article-list-layout { display: grid; grid-template-columns: 1fr 280px; gap: 48px; }
.article-item { padding: 32px 0; border-bottom: 1px solid var(--color-border-light); }
.article-item:first-child { padding-top: 0; }
.article-item-meta { font-size: 0.82rem; color: var(--color-text-muted); margin-bottom: 12px; display: flex; gap: 20px; }
.article-item h2 { font-size: 1.4rem; margin-bottom: 12px; line-height: 1.4; }
.article-item h2 a { color: var(--color-primary); }
.article-item h2 a:hover { color: var(--color-accent-dark); }
.article-item p { color: var(--color-text-light); margin-bottom: 16px; }
.article-sidebar { position: sticky; top: 100px; align-self: start; }
.sidebar-widget { margin-bottom: 32px; }
.sidebar-widget h3 { font-size: 1.05rem; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--color-accent); }
.article-detail-layout { display: grid; grid-template-columns: 1fr 280px; gap: 48px; }
.article-meta-top { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 20px; display: flex; gap: 20px; flex-wrap: wrap; }
.article-summary { font-size: 1.1rem; color: var(--color-text); font-weight: 500; padding: 20px; background: var(--color-sand); border-radius: var(--radius-md); border-left: 4px solid var(--color-accent); margin-bottom: 32px; }
.article-body { font-size: 1rem; line-height: 1.9; color: var(--color-text-light); }
.article-body h2, .article-body h3 { color: var(--color-primary); margin: 32px 0 16px; }
.article-body p { margin-bottom: 18px; }
.article-body ul, .article-body ol { padding-left: 24px; margin-bottom: 18px; }
.article-body li { margin-bottom: 8px; }
.article-tags { margin: 32px 0; padding-top: 24px; border-top: 1px solid var(--color-border-light); }
.article-tags strong { margin-right: 12px; }
.tag { display: inline-block; padding: 4px 14px; background: var(--color-sand); color: var(--color-accent-dark); border-radius: 50px; font-size: 0.8rem; margin: 0 6px 6px 0; }
.article-nav { display: flex; justify-content: space-between; gap: 20px; padding: 24px 0; border-top: 1px solid var(--color-border-light); margin-top: 32px; flex-wrap: wrap; }
.nav-prev, .nav-next { font-size: 0.9rem; color: var(--color-text-light); max-width: 45%; }
.nav-prev:hover, .nav-next:hover { color: var(--color-accent-dark); }
.nav-next { text-align: right; margin-left: auto; }
.related-articles { margin-top: 60px; padding-top: 48px; border-top: 2px solid var(--color-sand); }
.related-articles h3 { margin-bottom: 28px; font-size: 1.4rem; }

/* === Search === */
.search-form-wrap { max-width: 600px; margin: 0 auto 48px; }
.search-form { display: flex; gap: 12px; }
.search-form input { flex: 1; padding: 14px 20px; border: 2px solid var(--color-border); border-radius: var(--radius-sm); font-size: 1rem; }
.search-form input:focus { outline: none; border-color: var(--color-accent); }
.search-results-group { margin-bottom: 48px; }
.search-results-group h2 { font-size: 1.3rem; margin-bottom: 24px; padding-bottom: 12px; border-bottom: 2px solid var(--color-sand); }
.no-results { text-align: center; padding: 60px 20px; }
.no-results h3 { margin-bottom: 12px; }
.no-results p { color: var(--color-text-light); }

/* === Responsive === */
@media (max-width: 1024px) {
  .oem-grid, .technical-grid, .product-detail-layout, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .article-list-layout, .article-detail-layout { grid-template-columns: 1fr; }
  .article-sidebar, .product-sidebar { position: static; }
  .product-list-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.5rem; }
  .section { padding: 56px 0; }
  .hero { padding: 60px 0 70px; }
  .hero h1 { font-size: 2rem; }
  .hero-stats { gap: 24px; }
  .stat-item strong { font-size: 1.5rem; }
  .nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--color-white); flex-direction: column; padding: 16px; box-shadow: var(--shadow-md); gap: 0; }
  .nav.open { display: flex; }
  .nav a { padding: 12px 16px; border-bottom: 1px solid var(--color-border-light); }
  .nav-toggle { display: flex; }
  .header-actions .btn { display: none; }
  .top-bar-right { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .inquiry-form .form-row { grid-template-columns: 1fr; }
  .oem-types { grid-template-columns: 1fr; }
  .float-cta { right: 12px; bottom: 70px; }
  .float-btn { width: 42px; height: 42px; }
  .tab-nav { overflow-x: auto; }
  .hero-buttons .btn { width: 100%; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero h1 { font-size: 1.6rem; }
  .section-header h2 { font-size: 1.4rem; }
  .btn-lg { padding: 14px 24px; font-size: 0.9rem; }
}