/* ============================================
   BIOCCE - Brand Website Styles
   International B2B White Inter Flat Style
   ============================================ */

/* --- Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* --- CSS Variables --- */
:root {
  --primary-dark: #1A1A1A;
  --white: #FFFFFF;
  --light-gray: #F8FAFC;
  --border-gray: #E2E8F0;
  --text-primary: #1A1A1A;
  --text-secondary: #4A5568;
  --text-muted: #718096;
  --brand-blue: #007AFF;
  --brand-cyan: #00B4D8;
  --cta-gradient: linear-gradient(135deg, #007AFF 0%, #0055CC 100%);
  --radius-card: 10px;
  --radius-btn: 6px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --transition: all 0.3s ease;
  --max-width: 1200px;
  --section-padding: 70px 0;
}

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

html {
  scroll-behavior: smooth;
  font-size: 14px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--white);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

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

/* --- Section Styles --- */
.section-light {
  background: var(--white);
  padding: var(--section-padding);
}

.section-alt {
  background: var(--light-gray);
  padding: var(--section-padding);
}

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

/* --- Typography --- */
.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 3rem;
}

.section-dark .section-title { color: var(--white); }
.section-dark .section-subtitle { color: #A0AEC0; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--cta-gradient);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(0,122,255,0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,122,255,0.45);
}

.btn-outline {
  background: transparent;
  color: var(--brand-blue);
  border: 2px solid var(--brand-blue);
}

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

.btn-dark {
  background: var(--white);
  color: var(--primary-dark);
  font-weight: 700;
}

.btn-dark:hover {
  background: #E2E8F0;
  transform: translateY(-2px);
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: -0.5px;
}

.logo span {
  color: var(--brand-blue);
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}

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

.nav a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--brand-blue);
  border-radius: 1px;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  padding: 120px 0 70px;
  background: var(--light-gray);
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1rem;
  letter-spacing: -1px;
}

.hero-content h1 span {
  color: var(--brand-blue);
}

.hero-content p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  max-width: 520px;
}

.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-image {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image svg {
  width: 100%;
  max-width: 500px;
  height: auto;
}

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

.product-card {
  background: var(--white);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}

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

.product-card .icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: var(--light-gray);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.product-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.product-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.product-card .btn-link {
  color: var(--brand-blue);
  font-weight: 600;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

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

/* ============================================
   FACTORY / SHOWCASE
   ============================================ */
.factory-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.factory-item {
  border-radius: var(--radius-card);
  overflow: hidden;
  position: relative;
  aspect-ratio: 4/3;
  background: var(--light-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.factory-item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-md);
}

.factory-item svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.factory-item .label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 12px 16px;
  background: rgba(0,0,0,0.6);
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 500;
}

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

.stat-item {
  text-align: center;
  padding: 24px;
}

.stat-item .number {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--brand-blue);
  line-height: 1.2;
}

.stat-item .number .suffix {
  font-size: 1.4rem;
}

.stat-item .label {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--primary-dark);
  color: var(--white);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.85rem;
  color: #A0AEC0;
  line-height: 1.6;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  font-size: 0.85rem;
  color: #A0AEC0;
  transition: var(--transition);
}

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

.footer-contact li {
  font-size: 0.85rem;
  color: #A0AEC0;
  margin-bottom: 8px;
  display: flex;
  gap: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: #718096;
}

/* ============================================
   PAGE HEADER (interior pages)
   ============================================ */
.page-header {
  padding-top: 100px;
  padding-bottom: 40px;
  background: var(--light-gray);
  text-align: center;
}

.page-header h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.page-header p {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 500px;
  margin: 0 auto;
}

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb {
  padding: 90px 0 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: var(--white);
  border-bottom: 1px solid var(--border-gray);
}

.breadcrumb .container {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb a {
  color: var(--text-muted);
  transition: var(--transition);
}

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

.breadcrumb .sep {
  color: var(--text-muted);
}

.breadcrumb .current {
  color: var(--text-primary);
  font-weight: 500;
}

/* ============================================
   PRODUCTS PAGE
   ============================================ */
.filter-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
  justify-content: center;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: 20px;
  border: 1px solid var(--border-gray);
  background: var(--white);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--brand-blue);
  color: var(--white);
  border-color: var(--brand-blue);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-item {
  background: var(--white);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: var(--transition);
}

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

.product-item .product-img {
  height: 200px;
  background: var(--light-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border-gray);
}

.product-item .product-img svg {
  width: 120px;
  height: 120px;
}

.product-item .product-info {
  padding: 20px;
}

.product-item .product-info h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.product-item .product-info .category-tag {
  font-size: 0.75rem;
  color: var(--brand-blue);
  font-weight: 500;
  margin-bottom: 8px;
  display: inline-block;
}

.product-item .product-info p {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  line-height: 1.5;
}

.product-item .product-info .specs {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.product-item .product-info .specs li {
  padding: 2px 0;
}

/* --- Pagination --- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
}

.pagination button {
  padding: 8px 14px;
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-btn);
  background: var(--white);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.pagination button:hover,
.pagination button.active {
  background: var(--brand-blue);
  color: var(--white);
  border-color: var(--brand-blue);
}

.pagination button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ============================================
   PRODUCT DETAIL
   ============================================ */
.product-detail {
  padding: 50px 0;
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 40px;
  align-items: start;
}

.product-gallery {
  position: sticky;
  top: 100px;
}

.product-main-img {
  width: 100%;
  aspect-ratio: 1/1;
  background: var(--light-gray);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-card);
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-main-img svg {
  width: 240px;
  height: 240px;
}

.product-info-detail h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.product-info-detail .category-badge {
  display: inline-block;
  background: var(--light-gray);
  color: var(--brand-blue);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 16px;
}

.product-info-detail .price-range {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.product-info-detail .desc {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
}

.specs-table th,
.specs-table td {
  padding: 10px 16px;
  border: 1px solid var(--border-gray);
  font-size: 0.85rem;
  text-align: left;
}

.specs-table th {
  background: var(--light-gray);
  font-weight: 600;
  color: var(--text-primary);
  width: 30%;
}

.specs-table td {
  color: var(--text-secondary);
}

.product-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- Inquiry Modal --- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

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

.modal {
  background: var(--white);
  border-radius: var(--radius-card);
  max-width: 520px;
  width: 100%;
  padding: 40px;
  position: relative;
}

.modal h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
  font-family: inherit;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-btn);
  font-size: 0.9rem;
  font-family: inherit;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--brand-blue);
  box-shadow: 0 0 0 3px rgba(0,122,255,0.1);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

/* ============================================
   ARTICLES PAGE
   ============================================ */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background: var(--white);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: var(--transition);
}

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

.article-card .article-img {
  height: 180px;
  background: var(--light-gray);
  display: flex;
  align-items: center;
  justify-content: center;
}

.article-card .article-img svg {
  width: 80px;
  height: 80px;
}

.article-card .article-body {
  padding: 20px;
}

.article-card .article-body .date {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.article-card .article-body h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}

.article-card .article-body p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 12px;
}

.article-card .article-body .read-more {
  font-size: 0.85rem;
  color: var(--brand-blue);
  font-weight: 600;
}

/* ============================================
   ARTICLE DETAIL
   ============================================ */
.article-detail {
  padding: 50px 0;
  max-width: 800px;
  margin: 0 auto;
}

.article-detail .article-meta {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 24px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.article-detail h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.3;
}

.article-detail .featured-image {
  width: 100%;
  height: 360px;
  background: var(--light-gray);
  border-radius: var(--radius-card);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 32px;
}

.article-detail .featured-image svg {
  width: 160px;
  height: 160px;
}

.article-detail .content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.article-detail .content h2 {
  font-size: 1.4rem;
  font-weight: 600;
  margin: 32px 0 12px;
  color: var(--text-primary);
}

.article-detail .content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 24px 0 8px;
  color: var(--text-primary);
}

.article-detail .content p {
  margin-bottom: 16px;
}

.article-detail .content ul,
.article-detail .content ol {
  margin-bottom: 16px;
  padding-left: 24px;
}

.article-detail .content li {
  margin-bottom: 8px;
}

.article-detail .content blockquote {
  border-left: 4px solid var(--brand-blue);
  padding: 16px 20px;
  margin: 24px 0;
  background: var(--light-gray);
  border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
  font-style: italic;
  color: var(--text-secondary);
}

/* ============================================
   ABOUT PAGE
   ============================================ */
.brand-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
  padding: 70px 0;
}

.brand-story-text h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.brand-story-text p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 12px;
}

.brand-story-img {
  background: var(--light-gray);
  border-radius: var(--radius-card);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-story-img svg {
  width: 200px;
  height: 200px;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.advantage-card {
  background: var(--white);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-card);
  padding: 32px 20px;
  text-align: center;
  transition: var(--transition);
}

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

.advantage-card .icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: var(--light-gray);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.advantage-card .icon svg {
  width: 28px;
  height: 28px;
}

.advantage-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.advantage-card p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.market-map {
  padding: 70px 0;
  text-align: center;
}

.market-map .map-container {
  max-width: 700px;
  margin: 0 auto;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.cert-item {
  background: var(--white);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-card);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
}

.cert-item:hover {
  box-shadow: var(--shadow-md);
}

.cert-item svg {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
}

.cert-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.cert-item p {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ============================================
   SERVICES PAGE
   ============================================ */
.services-intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 50px;
}

.services-intro p {
  color: var(--text-secondary);
  line-height: 1.7;
}

.oem-process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 60px;
}

.oem-step {
  text-align: center;
  padding: 24px;
  position: relative;
}

.oem-step .step-number {
  width: 40px;
  height: 40px;
  background: var(--brand-blue);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  margin: 0 auto 12px;
}

.oem-step h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.oem-step p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-card);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  padding: 18px 24px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
  background: var(--white);
}

.faq-question:hover {
  background: var(--light-gray);
}

.faq-question .icon {
  transition: transform 0.3s ease;
  font-size: 1.2rem;
  color: var(--brand-blue);
}

.faq-item.active .faq-question .icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding: 0 24px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 18px 24px;
}

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 50px;
  padding: 50px 0;
  align-items: start;
}

.contact-form-wrap h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.contact-info-wrap h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.contact-detail-list li {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  align-items: flex-start;
}

.contact-detail-list li .icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: var(--light-gray);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-detail-list li .icon svg {
  width: 20px;
  height: 20px;
}

.contact-detail-list li .info h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.contact-detail-list li .info p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.whatsapp-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: #25D366;
  color: var(--white);
  border-radius: var(--radius-btn);
  font-weight: 600;
  transition: var(--transition);
  margin-top: 12px;
}

.whatsapp-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37,211,102,0.3);
}

/* ============================================
   FLOATING WHATSAPP BUTTON
   ============================================ */
.float-whatsapp {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  width: 56px;
  height: 56px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37,211,102,0.4);
  transition: var(--transition);
}

.float-whatsapp:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37,211,102,0.5);
}

.float-whatsapp svg {
  width: 28px;
  height: 28px;
  fill: var(--white);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 992px) {
  .product-grid-home { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .articles-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .oem-process { grid-template-columns: repeat(2, 1fr); }
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero-content p { margin: 0 auto 1.5rem; }
  .hero-btns { justify-content: center; }
  .brand-story { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .product-detail-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .factory-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav { display: none; }
  .mobile-toggle { display: flex; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 16px 24px;
    box-shadow: var(--shadow-md);
    gap: 16px;
  }
  .product-grid-home { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .articles-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .advantages-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
  .oem-process { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: 2rem; }
  .section-title { font-size: 1.5rem; }
  .pagination { flex-wrap: wrap; }
  .filter-bar { overflow-x: auto; flex-wrap: nowrap; justify-content: flex-start; }
}