/* ========================================
   CivitasWorld V3 - Clean Production CSS
   ======================================== */

:root {
  --primary: #1a1a2e;
  --primary-light: #2d2d44;
  --accent: #c9a96e;
  --accent-light: #d4b87a;
  --accent-dark: #a8884d;
  --text: #2d2d2d;
  --text-light: #6b6b6b;
  --text-muted: #999;
  --bg: #fff;
  --bg-warm: #f8f6f1;
  --bg-cream: #f0ede6;
  --border: #e5e0d8;
  --success: #4a9d6e;
  --error: #e74c3c;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --radius: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --transition: all 0.3s ease;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, sans-serif;
}

[data-theme="dark"] {
  --bg: #0f0f1e;
  --bg-warm: #1a1a2e;
  --bg-cream: #252538;
  --text: #e0e0e0;
  --text-light: #b0b0b0;
  --border: #2d2d44;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); color: var(--text); background: var(--bg); line-height: 1.6; overflow-x: hidden; }

/* Scroll Animations */
.animate-on-scroll { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.animate-on-scroll.animated { opacity: 1; transform: translateY(0); }
.animate-on-scroll.animate-delay-1 { transition-delay: 0.1s; }
.animate-on-scroll.animate-delay-2 { transition-delay: 0.2s; }
.animate-on-scroll.animate-delay-3 { transition-delay: 0.3s; }

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

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* === Buttons === */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: var(--radius); font-weight: 600; font-size: 0.9rem; cursor: pointer; transition: var(--transition); border: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(201,169,110,0.3); }
.btn-outline { border: 2px solid var(--accent); color: var(--accent); background: transparent; }
.btn-outline:hover { background: var(--accent); color: #fff; }
.btn-sm { padding: 8px 18px; font-size: 0.8rem; }
.btn-lg { padding: 16px 36px; font-size: 1rem; }
.btn-full { width: 100%; justify-content: center; }

/* === Announcement Bar === */
.announcement-bar { background: var(--primary); color: #fff; text-align: center; padding: 10px 24px; font-size: 0.82rem; }

/* === Header === */
.header { position: sticky; top: 0; z-index: 1000; background: var(--bg); border-bottom: 1px solid var(--border); transition: var(--transition); }
.header.scrolled { box-shadow: var(--shadow-md); }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; }
.logo { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; color: var(--primary); }
[data-theme="dark"] .logo { color: #fff; }
.nav-menu { display: flex; align-items: center; gap: 8px; }
.nav-menu a { padding: 8px 16px; font-size: 0.88rem; font-weight: 500; color: var(--text-light); border-radius: var(--radius); transition: var(--transition); }
.nav-menu a:hover, .nav-menu a.active { color: var(--accent); background: rgba(201,169,110,0.08); }
.nav-actions { display: flex; align-items: center; gap: 12px; margin-left: 16px; }
.lang-toggle { padding: 6px 14px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 0.8rem; font-weight: 600; color: var(--text); background: var(--bg); cursor: pointer; }
.mobile-menu-toggle { display: none; width: 32px; height: 24px; position: relative; flex-direction: column; justify-content: space-between; }
.mobile-menu-toggle span { display: block; width: 100%; height: 2px; background: var(--text); border-radius: 2px; transition: var(--transition); }

/* Transparent Header on Hero */
.header-transparent { background: transparent; border-bottom-color: transparent; }
.header-transparent .nav-menu a { color: rgba(255,255,255,0.8); }
.header-transparent .nav-menu a:hover { color: var(--accent); }
.header-transparent .logo { color: #fff; }
.header-transparent .lang-toggle { background: transparent; border-color: rgba(255,255,255,0.3); color: #fff; }
.header.scrolled { background: var(--bg); border-bottom-color: var(--border); }
.header.scrolled .nav-menu a { color: var(--text-light); }
.header.scrolled .logo { color: var(--primary); }
[data-theme="dark"] .header.scrolled .logo { color: #fff; }
.header.scrolled .lang-toggle { background: var(--bg); border-color: var(--border); color: var(--text); }

/* === Hero === */
.hero { padding: 80px 0; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%); color: #fff; min-height: 70vh; display: flex; align-items: center; }
.hero-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-title { font-family: var(--font-display); font-size: 3rem; font-weight: 700; line-height: 1.15; margin-bottom: 20px; }
.hero-subtitle { font-size: 1.1rem; color: rgba(255,255,255,0.8); line-height: 1.8; margin-bottom: 32px; }
.hero-stats { display: flex; gap: 32px; margin-bottom: 36px; }
.stat { text-align: center; }
.stat-number { display: block; font-family: var(--font-display); font-size: 2.5rem; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 0.8rem; color: rgba(255,255,255,0.7); text-transform: uppercase; letter-spacing: 1px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero Sample CTA */
.hero-sample-cta { display: flex; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.btn-sample { display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; background: #07C160; color: #fff; border-radius: var(--radius); font-weight: 600; font-size: 0.85rem; transition: var(--transition); text-decoration: none; }
.btn-sample:hover { background: #06ae55; transform: translateY(-2px); }
.btn-catalog { display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; border: 2px solid rgba(255,255,255,0.3); color: #fff; border-radius: var(--radius); font-weight: 600; font-size: 0.85rem; transition: var(--transition); background: transparent; cursor: pointer; }
.btn-catalog:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.5); }

.hero-image { display: flex; flex-direction: column; gap: 14px; }
.hero-image img { width: 100%; object-fit: cover; }

/* Hero: factory strength carousel (top) */
.hero-factory { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.3); height: 300px; }
.hero-factory-slider { position: relative; width: 100%; height: 100%; }
.hf-slide { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 1s ease; }
.hf-slide.active { opacity: 1; }
.hero-factory-caption { position: absolute; left: 0; right: 0; bottom: 0; display: flex; align-items: center; gap: 8px; padding: 12px 16px; background: linear-gradient(to top, rgba(0,0,0,0.72), rgba(0,0,0,0)); color: #fff; font-size: 0.85rem; font-weight: 600; letter-spacing: 0.3px; }
.hero-factory-caption i { color: var(--accent-light); }

/* Hero: hot products grid (bottom) */
.hero-products { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.14); border-radius: var(--radius-lg); padding: 12px 14px 14px; backdrop-filter: blur(4px); }
.hero-products-label { display: flex; align-items: center; gap: 7px; color: #fff; font-size: 0.8rem; font-weight: 600; margin-bottom: 10px; letter-spacing: 0.3px; }
.hero-products-label i { color: #ff7a45; }
.hero-products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.hp-item { aspect-ratio: 1/1; height: auto !important; border-radius: var(--radius); object-fit: cover; background: #fff; cursor: pointer; transition: var(--transition); border: 2px solid transparent; }
.hp-item:hover { transform: translateY(-3px); border-color: var(--accent); box-shadow: 0 8px 20px rgba(0,0,0,0.25); }

/* Hero Background */
.hero-with-bg {
  position: relative;
  overflow: hidden;
  background: var(--primary);
}
.hero-with-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('assets/images/factory/004.jpg') center/cover no-repeat;
  opacity: 0.35;
  z-index: 0;
}
.hero-with-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,26,46,0.75) 0%, rgba(45,45,68,0.65) 100%);
  z-index: 0;
}
.hero-with-bg .container { position: relative; z-index: 1; }

/* === Section Common === */
.section-header { text-align: center; margin-bottom: 48px; }
.section-title { font-family: var(--font-display); font-size: 2.2rem; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
[data-theme="dark"] .section-title { color: #fff; }
.section-subtitle { color: var(--text-light); font-size: 1rem; max-width: 600px; margin: 0 auto; }

/* === Products === */
.products { padding: 80px 0; background: var(--bg-warm); }
.category-tabs { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.tab-btn { padding: 10px 24px; border-radius: 24px; font-size: 0.85rem; font-weight: 500; color: var(--text-light); background: var(--bg); border: 1px solid var(--border); cursor: pointer; transition: var(--transition); }
.tab-btn:hover { border-color: var(--accent); color: var(--accent); }
.tab-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.product-card { background: var(--bg); border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); cursor: pointer; }
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.product-card-img { position: relative; aspect-ratio: 4/3; overflow: hidden; }
.product-card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.product-card:hover .product-card-img img { transform: scale(1.06); }
.product-badge { position: absolute; top: 12px; left: 12px; background: var(--accent); color: #fff; padding: 4px 12px; border-radius: 12px; font-size: 0.7rem; font-weight: 600; }
.product-card-body { padding: 16px; }
.product-card-body h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 6px; color: var(--primary); }
[data-theme="dark"] .product-card-body h3 { color: #fff; }
.product-card-body p { font-size: 0.8rem; color: var(--text-light); margin-bottom: 12px; line-height: 1.5; }
.product-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.product-tag { background: var(--bg-warm); padding: 3px 10px; border-radius: 12px; font-size: 0.7rem; color: var(--text-light); }
.product-actions { display: flex; gap: 8px; }
.product-actions .btn { flex: 1; justify-content: center; font-size: 0.78rem; padding: 8px 12px; }
.product-card-body p { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 2.4em; }
.product-card.is-featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }

/* Tab count pill */
.tab-count { display: inline-block; margin-left: 6px; padding: 0 7px; min-width: 18px; font-size: 0.68rem; line-height: 18px; border-radius: 9px; background: var(--bg-warm); color: var(--text-light); }
.tab-btn.active .tab-count { background: rgba(255,255,255,0.28); color: #fff; }

/* Show-more control */
.products-more { text-align: center; margin-top: 36px; }
.products-count { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 14px; }
#loadMoreBtn { min-width: 240px; }

/* === Featured Showcase === */
.showcase { padding: 70px 0 30px; background: var(--bg); }
.showcase .section-header { margin-bottom: 30px; }
.showcase-rail { display: flex; gap: 18px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 6px 4px 20px; -webkit-overflow-scrolling: touch; scrollbar-width: thin; }
.showcase-rail::-webkit-scrollbar { height: 8px; }
.showcase-rail::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.showcase-rail::-webkit-scrollbar-thumb:hover { background: var(--accent); }
.showcase-card { flex: 0 0 220px; scroll-snap-align: start; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; cursor: pointer; transition: var(--transition); }
.showcase-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.showcase-img { position: relative; aspect-ratio: 1/1; overflow: hidden; background: var(--bg-cream); }
.showcase-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.showcase-card:hover .showcase-img img { transform: scale(1.07); }
.showcase-star { position: absolute; top: 10px; left: 10px; width: 30px; height: 30px; display: flex; align-items: center; justify-content: center; background: var(--accent); color: #fff; border-radius: 50%; font-size: 0.8rem; box-shadow: 0 3px 10px rgba(0,0,0,0.2); }
.showcase-name { padding: 12px 14px 6px; font-size: 0.85rem; font-weight: 600; color: var(--primary); line-height: 1.35; height: 3.4em; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
[data-theme="dark"] .showcase-name { color: #fff; }
.showcase-ali { display: flex; align-items: center; justify-content: center; gap: 6px; margin: 0 14px 14px; padding: 8px; font-size: 0.75rem; font-weight: 600; color: var(--accent-dark); border: 1px solid var(--accent); border-radius: var(--radius); text-decoration: none; transition: var(--transition); }
.showcase-ali:hover { background: var(--accent); color: #fff; }
.showcase-nav { display: flex; gap: 10px; justify-content: center; margin-top: 4px; }
.showcase-arrow { width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--border); background: var(--bg); color: var(--text-light); cursor: pointer; transition: var(--transition); display: flex; align-items: center; justify-content: center; }
.showcase-arrow:hover { border-color: var(--accent); color: var(--accent); background: var(--bg-warm); }

/* === Comparison === */
.comparison { padding: 60px 0; background: var(--bg); }
.comparison-empty { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.comparison-empty i { font-size: 3rem; margin-bottom: 16px; display: block; color: var(--border); }
.comparison-table { overflow-x: auto; }
.comparison-table table { width: 100%; border-collapse: collapse; }
.comparison-table th, .comparison-table td { padding: 14px 20px; text-align: center; border-bottom: 1px solid var(--border); font-size: 0.85rem; }
.comparison-table th { background: var(--bg-warm); font-weight: 600; }
.comparison-table img { width: 80px; height: 80px; object-fit: cover; border-radius: var(--radius); margin: 0 auto; }

/* === Inquiry Cart === */
.inquiry-cart { padding: 60px 0; background: var(--bg-cream); }
.cart-header { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.cart-count { background: var(--accent); color: #fff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.8rem; font-weight: 700; }
.cart-empty { text-align: center; padding: 40px; color: var(--text-muted); }
.cart-empty i { font-size: 2.5rem; margin-bottom: 12px; display: block; color: var(--border); }
.cart-items { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.cart-item { display: flex; gap: 12px; align-items: center; background: var(--bg); padding: 12px 16px; border-radius: var(--radius); border: 1px solid var(--border); }
.cart-item img { width: 48px; height: 48px; object-fit: cover; border-radius: 6px; }
.cart-item-info h4 { font-size: 0.85rem; font-weight: 600; }
.cart-item-info p { font-size: 0.75rem; color: var(--text-muted); }
.cart-item-remove { color: var(--error); cursor: pointer; font-size: 0.9rem; padding: 4px 8px; }
.cart-actions { display: flex; gap: 12px; justify-content: flex-end; }

/* === About === */
.about { padding: 80px 0; }
.about-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text p { color: var(--text-light); line-height: 1.8; margin-bottom: 16px; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 32px; }
.feature { text-align: center; padding: 20px; background: var(--bg-warm); border-radius: var(--radius-md); }
.feature i { font-size: 1.5rem; color: var(--accent); margin-bottom: 10px; }
.feature h3 { font-size: 0.9rem; font-weight: 600; margin-bottom: 4px; }
.feature p { font-size: 0.78rem; color: var(--text-light); }
.about-image img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }

/* Enhanced Cert Feature */
.feature-cert-enhanced { position: relative; cursor: pointer; transition: var(--transition); }
.feature-cert-enhanced:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.cert-thumbnails { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; justify-content: center; }
.cert-thumb { width: 52px; height: 40px; object-fit: cover; border-radius: 4px; border: 1px solid var(--border); opacity: 0.75; cursor: pointer; transition: var(--transition); }
.cert-thumb:hover { opacity: 1; transform: translateY(-2px); border-color: var(--accent); }
.feature-cert-enhanced:hover .cert-thumb { opacity: 1; border-color: var(--accent); }
.cert-view-more { display: block; margin-top: 8px; font-size: 0.72rem; color: var(--accent); font-weight: 600; }

/* === Hero Enhancements === */
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 8px 18px; background: rgba(201,169,110,0.15); border: 1px solid rgba(201,169,110,0.3); border-radius: 24px; color: var(--accent-light); font-size: 0.82rem; font-weight: 600; letter-spacing: 0.5px; margin-bottom: 20px; }
.hero-desc { font-size: 0.9rem; color: rgba(255,255,255,0.7); line-height: 1.8; margin-bottom: 24px; max-width: 540px; }
.hero-trust { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 24px; }
.trust-item { display: flex; align-items: center; gap: 6px; font-size: 0.78rem; color: rgba(255,255,255,0.6); font-weight: 500; }
.trust-item i { color: var(--accent); }

/* Hero Image Slider */
.hero-img-slider { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.3); height: 420px; }
.hero-slide { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 1s ease; }
.hero-slide.active { opacity: 1; }

/* === About Product Carousel === */
.about-product-carousel { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); background: var(--bg-cream); }
.about-carousel-track { position: relative; height: 400px; overflow: hidden; }
.about-carousel-slide { position: absolute; inset: 0; opacity: 0; transition: opacity 0.8s ease; }
.about-carousel-slide.active { opacity: 1; }
.about-carousel-slide img { width: 100%; height: 100%; object-fit: cover; }
.carousel-caption { position: absolute; bottom: 0; left: 0; right: 0; padding: 16px 20px; background: linear-gradient(transparent, rgba(0,0,0,0.7)); color: #fff; font-size: 0.88rem; font-weight: 600; }
.about-carousel-dots { display: flex; justify-content: center; gap: 8px; padding: 12px 0; background: var(--bg); }
.about-carousel-dots .carousel-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--border); border: none; cursor: pointer; transition: var(--transition); }
.about-carousel-dots .carousel-dot.active { background: var(--accent); width: 24px; border-radius: 4px; }

/* === Factory Showcase === */
.factory-showcase { margin-top: 40px; }
.factory-hero-img { position: relative; border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 24px; aspect-ratio: 21/9; }
.factory-hero-img img { width: 100%; height: 100%; object-fit: cover; }
.factory-overlay { position: absolute; bottom: 0; left: 0; right: 0; padding: 32px; background: linear-gradient(transparent, rgba(26,26,46,0.85)); color: #fff; }
.factory-overlay h3 { font-family: var(--font-display); font-size: 1.4rem; margin-bottom: 6px; }
.factory-overlay p { font-size: 0.88rem; color: rgba(255,255,255,0.8); }
.factory-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.factory-card { border-radius: var(--radius-md); overflow: hidden; background: var(--bg); border: 1px solid var(--border); transition: var(--transition); cursor: pointer; }
.factory-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.factory-card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; transition: var(--transition); }
.factory-card:hover img { transform: scale(1.05); }
.factory-card-info { padding: 14px 16px; }
.factory-card-info h4 { font-size: 0.88rem; font-weight: 600; margin-bottom: 4px; color: var(--primary); }
[data-theme="dark"] .factory-card-info h4 { color: #fff; }
.factory-card-info p { font-size: 0.78rem; color: var(--text-light); }
.factory-placeholder { width: 100%; aspect-ratio: 4/3; display: flex; flex-direction: column; align-items: center; justify-content: center; background: var(--bg-cream); color: var(--text-muted); gap: 8px; }
.factory-placeholder i { font-size: 2rem; color: var(--accent); }

/* === Services === */
.services { padding: 80px 0; background: transparent; }
.service-process { display: flex; align-items: center; justify-content: center; gap: 20px; flex-wrap: wrap; }
.process-step { text-align: center; padding: 28px 16px 20px; background: var(--bg); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); flex: 0 0 220px; position: relative; overflow: hidden; }
.step-number { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); width: 28px; height: 28px; background: var(--accent); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.75rem; font-weight: 700; }
.step-icon { font-size: 2rem; color: var(--accent); margin-bottom: 12px; }
.process-step h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 6px; }
.process-step p { font-size: 0.78rem; color: var(--text-light); }
.process-arrow { color: var(--accent); font-size: 1.2rem; }
.process-step-img { width: 100%; height: 120px; border-radius: var(--radius-sm); overflow: hidden; margin-bottom: 16px; }
.process-step-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.process-step:hover .process-step-img img { transform: scale(1.08); }
.about-patents { margin-top: 28px; }
.about-patents h4 { font-family: var(--font-display); font-size: 0.95rem; font-weight: 600; color: var(--primary); margin-bottom: 12px; }
[data-theme="dark"] .about-patents h4 { color: #fff; }
.patents-row { display: flex; gap: 12px; }
.patent-card { flex: 1; border-radius: var(--radius-sm); overflow: hidden; cursor: pointer; border: 1px solid var(--border); transition: var(--transition); }
.patent-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--accent); }
.patent-card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; display: block; }

/* === Testimonials === */
.testimonials { padding: 80px 0; }
.testimonial-carousel { position: relative; overflow: hidden; }
.testimonial-track { display: flex; transition: transform 0.5s ease; }
.testimonial-card { flex: 0 0 100%; padding: 40px; text-align: center; }
.testimonial-rating { color: #f5a623; font-size: 1.2rem; letter-spacing: 4px; margin-bottom: 20px; }
.testimonial-text { font-size: 1.05rem; color: var(--text); line-height: 1.8; max-width: 700px; margin: 0 auto 24px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; justify-content: center; gap: 14px; }
.author-avatar { width: 48px; height: 48px; border-radius: 50%; background: var(--accent); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.9rem; }
.author-info h4 { font-size: 0.9rem; font-weight: 600; }
.author-info p { font-size: 0.78rem; color: var(--text-muted); }
.carousel-btn { position: absolute; top: 50%; transform: translateY(-50%); width: 44px; height: 44px; border-radius: 50%; background: var(--bg); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; z-index: 2; transition: var(--transition); }
.carousel-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.carousel-btn.prev { left: 10px; }
.carousel-btn.next { right: 10px; }
.carousel-dots { display: flex; justify-content: center; gap: 8px; margin-top: 24px; }
.carousel-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--border); cursor: pointer; transition: var(--transition); border: none; }
.carousel-dot.active { background: var(--accent); width: 28px; border-radius: 5px; }

/* === Factory Video === */
.factory-video { padding: 80px 0; background: var(--bg-warm); }
.video-wrapper { position: relative; border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 32px; background: #000; aspect-ratio: 16/9; }
.video-placeholder { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100%; cursor: pointer; color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-light)); }
.video-placeholder i { font-size: 4rem; margin-bottom: 16px; color: var(--accent); }
.video-placeholder p { font-size: 1rem; }
.factory-gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.factory-gallery img { width: 100%; aspect-ratio: 3/2; object-fit: cover; border-radius: var(--radius); transition: var(--transition); cursor: pointer; }
.factory-gallery img:hover { transform: scale(1.05); }

/* 工厂视频画廊 */
.factory-video-gallery { margin-top: 48px; }
.factory-video-title { font-family: var(--font-display); font-size: 1.3rem; color: var(--primary); margin-bottom: 20px; text-align: center; }
[data-theme="dark"] .factory-video-title { color: #fff; }
.factory-video-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.factory-video-card { position: relative; border-radius: var(--radius-md); overflow: hidden; cursor: pointer; transition: var(--transition); border: 1px solid var(--border); }
.factory-video-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.factory-video-card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; display: block; transition: var(--transition); }
.factory-video-card:hover img { transform: scale(1.05); }
.factory-video-play { position: absolute; top: 0; left: 0; right: 0; bottom: 0; display: flex; align-items: center; justify-content: center; background: rgba(0,0,0,0.25); transition: var(--transition); }
.factory-video-card:hover .factory-video-play { background: rgba(0,0,0,0.4); }
.factory-video-play i { font-size: 3rem; color: #fff; text-shadow: 0 2px 8px rgba(0,0,0,0.5); transition: var(--transition); }
.factory-video-card:hover .factory-video-play i { transform: scale(1.15); }
.factory-video-label { position: absolute; bottom: 0; left: 0; right: 0; padding: 8px 12px; background: linear-gradient(transparent, rgba(0,0,0,0.7)); color: #fff; font-size: 0.82rem; font-weight: 500; }

/* 视频灯箱 */
.video-lightbox { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 10000; display: none; align-items: center; justify-content: center; }
.video-lightbox.active { display: flex; }
.video-lightbox-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.9); }
.video-lightbox-content { position: relative; width: 90%; max-width: 900px; z-index: 1; }
.video-lightbox-content video { width: 100%; border-radius: var(--radius-md); background: #000; }
.video-lightbox-close { position: absolute; top: -40px; right: 0; background: none; border: none; color: #fff; font-size: 2rem; cursor: pointer; padding: 4px 12px; }
.video-lightbox-close:hover { color: var(--accent); }
.video-lightbox-label { color: #fff; text-align: center; margin-top: 12px; font-size: 0.95rem; }

/* === FAQ === */
.faq { padding: 80px 0; }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 12px; overflow: hidden; transition: var(--transition); }
.faq-item.active { border-color: var(--accent); box-shadow: 0 2px 12px rgba(201,169,110,0.15); }
.faq-question { padding: 18px 24px; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-weight: 600; font-size: 0.92rem; transition: var(--transition); }
.faq-question:hover { background: var(--bg-warm); }
.faq-question i { transition: var(--transition); color: var(--accent); }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-item.active .faq-answer { max-height: 300px; }
.faq-answer-inner { padding: 0 24px 20px; font-size: 0.88rem; color: var(--text-light); line-height: 1.8; }

/* === Contact === */
.contact { padding: 80px 0; background: var(--bg-cream); }
.contact-content { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-intro { color: var(--text-light); margin-bottom: 28px; line-height: 1.7; }
.contact-details { display: flex; flex-direction: column; gap: 20px; }
.contact-item { display: flex; align-items: center; gap: 16px; }
.contact-item i { width: 44px; height: 44px; border-radius: 50%; background: rgba(201,169,110,0.12); display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 1rem; flex-shrink: 0; }
.contact-item h4 { font-size: 0.82rem; font-weight: 600; margin-bottom: 2px; }
.contact-item p { font-size: 0.85rem; color: var(--text-light); }
.contact-form-wrapper { background: var(--bg); padding: 36px; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }

/* WeChat QR Code */
.wechat-qrcode-section { margin: 20px 0; padding: 20px; background: #f0fdf4; border: 2px solid #07C160; border-radius: var(--radius-md); }
.wechat-qrcode-section h4 { color: #07C160; font-size: 1rem; font-weight: 600; }
.wechat-qrcode-box { text-align: center; }
.wechat-qrcode-img { max-width: 200px; width: 100%; height: auto; border-radius: var(--radius); border: 2px solid #07C160; margin: 0 auto; display: block; }
.wechat-qrcode-hint { margin-top: 12px; font-size: 0.85rem; color: var(--text-light); }

/* === Forms === */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.82rem; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px 16px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg); color: var(--text); font-size: 0.9rem; transition: var(--transition); outline: none; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(201,169,110,0.15); }
.form-group textarea { resize: vertical; min-height: 100px; }

/* === Footer === */
.footer { background: var(--primary); color: #fff; padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-grid h3 { font-family: var(--font-display); font-size: 1.3rem; margin-bottom: 12px; }
.footer-grid h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 16px; }
.footer-grid p { font-size: 0.82rem; color: rgba(255,255,255,0.6); line-height: 1.7; }
.footer-grid ul li { margin-bottom: 8px; }
.footer-grid ul li a { font-size: 0.82rem; color: rgba(255,255,255,0.6); }
.footer-grid ul li a:hover { color: var(--accent); }
.social-links { display: flex; gap: 10px; margin-top: 16px; }
.social-links a { width: 36px; height: 36px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.2); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.7); transition: var(--transition); }
.social-links a:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.footer-bottom { padding: 20px 0; text-align: center; font-size: 0.78rem; color: rgba(255,255,255,0.4); }

/* === WhatsApp Float === */
.whatsapp-float { position: fixed; bottom: 80px; right: 24px; z-index: 999; width: 56px; height: 56px; border-radius: 50%; background: #25d366; color: #fff; display: flex; align-items: center; justify-content: center; font-size: 1.6rem; box-shadow: 0 4px 16px rgba(37,211,102,0.4); transition: var(--transition); animation: waPulse 2s infinite; }
.whatsapp-float:hover { transform: scale(1.1); }
@keyframes waPulse { 0%,100%{box-shadow:0 4px 16px rgba(37,211,102,0.4)} 50%{box-shadow:0 4px 16px rgba(37,211,102,0.4),0 0 0 12px rgba(37,211,102,0.15)} }

/* === Back to Top === */
.back-to-top { position: fixed; bottom: 80px; right: 90px; width: 44px; height: 44px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; z-index: 998; opacity: 0; visibility: hidden; transition: var(--transition); box-shadow: var(--shadow-md); }
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--accent); transform: translateY(-3px); }

/* === Mobile Bottom Nav === */
.mobile-bottom-nav { display: none; position: fixed; bottom: 0; left: 0; right: 0; background: var(--bg); border-top: 1px solid var(--border); padding: 8px 0; z-index: 997; box-shadow: 0 -4px 16px rgba(0,0,0,0.08); }
.mobile-bottom-nav .mobile-nav-item { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 6px 12px; font-size: 0.68rem; color: var(--text-light); }
.mobile-bottom-nav .mobile-nav-item i { font-size: 1.1rem; }
.mobile-bottom-nav { display: none; }

/* === Toast === */
.toast { position: fixed; top: 80px; right: 24px; z-index: 9999; background: var(--bg); border-radius: var(--radius); padding: 14px 24px; box-shadow: var(--shadow-lg); border-left: 4px solid var(--accent); font-size: 0.88rem; transform: translateX(120%); transition: transform 0.35s ease; max-width: 360px; }
.toast.show { transform: translateX(0); }
.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--error); }

/* === Modal === */
.modal { position: fixed; inset: 0; z-index: 2000; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: var(--transition); }
.modal.active { opacity: 1; visibility: visible; }
.modal-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(4px); }
.modal-content { position: relative; background: var(--bg); border-radius: var(--radius-lg); max-width: 600px; width: 90%; max-height: 85vh; overflow-y: auto; padding: 36px; transform: translateY(20px); transition: var(--transition); }
.modal.active .modal-content { transform: translateY(0); }
.modal-large { max-width: 900px; }
.modal-close { position: absolute; top: 16px; right: 16px; width: 36px; height: 36px; border-radius: 50%; background: var(--bg-warm); display: flex; align-items: center; justify-content: center; cursor: pointer; z-index: 2; }
.modal-close:hover { background: var(--error); color: #fff; }

/* Company Timeline */
.timeline-section { padding: 80px 0; background: transparent; }
.timeline { position: relative; max-width: 800px; margin: 0 auto; padding: 20px 0; }
.timeline::before { content: ''; position: absolute; left: 50%; transform: translateX(-50%); top: 0; bottom: 0; width: 3px; background: linear-gradient(to bottom, var(--accent), var(--accent-light)); border-radius: 3px; }
.timeline-item { position: relative; width: 50%; padding: 10px 40px; margin-bottom: 20px; }
.timeline-left { left: 0; text-align: right; }
.timeline-right { left: 50%; text-align: left; }
.timeline-dot { position: absolute; top: 20px; width: 16px; height: 16px; border-radius: 50%; background: var(--accent); border: 3px solid var(--bg); box-shadow: 0 0 0 3px var(--accent); z-index: 1; }
.timeline-left .timeline-dot { right: -8px; }
.timeline-right .timeline-dot { left: -8px; }
.timeline-content { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 20px; transition: var(--transition); }
.timeline-content:hover { box-shadow: var(--shadow-md); border-color: var(--accent); transform: translateY(-2px); }
.timeline-year { display: inline-block; background: var(--accent); color: #fff; padding: 2px 12px; border-radius: 12px; font-size: 0.78rem; font-weight: 700; margin-bottom: 8px; }
.timeline-content h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 6px; color: var(--primary); }
[data-theme="dark"] .timeline-content h4 { color: #fff; }
.timeline-content p { font-size: 0.82rem; color: var(--text-light); line-height: 1.6; }

/* Blog Section */
.blog-section { padding: 80px 0; background: transparent; }
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.blog-card { background: var(--bg); border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); }
.blog-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.blog-card-img { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.blog-card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.blog-card:hover .blog-card-img img { transform: scale(1.06); }
.blog-tag { position: absolute; top: 12px; left: 12px; background: var(--accent); color: #fff; padding: 4px 12px; border-radius: 12px; font-size: 0.7rem; font-weight: 600; }
.blog-card-body { padding: 20px; }
.blog-date { font-size: 0.75rem; color: var(--text-muted); }
.blog-card-body h4 { font-size: 1rem; font-weight: 600; margin: 8px 0; color: var(--primary); line-height: 1.4; }
[data-theme="dark"] .blog-card-body h4 { color: #fff; }
.blog-card-body p { font-size: 0.82rem; color: var(--text-light); line-height: 1.6; margin-bottom: 12px; }
.blog-link { font-size: 0.82rem; color: var(--accent); font-weight: 600; transition: var(--transition); }
.blog-link:hover { color: var(--accent-dark); }

/* Page Loader */
.page-loader { position: fixed; inset: 0; z-index: 99999; background: var(--primary); display: flex; align-items: center; justify-content: center; transition: opacity 0.5s ease, visibility 0.5s ease; }
.page-loader.hidden { opacity: 0; visibility: hidden; }
.loader-content { text-align: center; }
.loader-logo { font-family: var(--font-display); font-size: 2rem; color: #fff; margin-bottom: 24px; letter-spacing: 2px; }
.loader-bar { width: 200px; height: 3px; background: rgba(255,255,255,0.15); border-radius: 3px; overflow: hidden; }
.loader-bar-fill { width: 0; height: 100%; background: var(--accent); border-radius: 3px; animation: loaderFill 1.5s ease forwards; }
@keyframes loaderFill { to { width: 100%; } }

/* Contact Map */
.contact-map { margin-top: 24px; border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--border); }
.contact-map-img { width: 100%; height: 160px; object-fit: cover; }
.map-hint { padding: 10px 16px; background: var(--bg-warm); font-size: 0.82rem; color: var(--text-light); }
.map-hint i { color: var(--accent); margin-right: 6px; }

/* WhatsApp Label */
.wa-label { position: absolute; right: calc(100% + 10px); background: #fff; color: #333; padding: 6px 12px; border-radius: 6px; font-size: 0.78rem; font-weight: 600; white-space: nowrap; box-shadow: var(--shadow-md); opacity: 0; transform: translateX(10px); transition: var(--transition); }
.whatsapp-float:hover .wa-label { opacity: 1; transform: translateX(0); }

/* === Product Detail Modal === */
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.pd-gallery img { width: 100%; border-radius: var(--radius-md); margin-bottom: 12px; }
.pd-thumbs { display: flex; gap: 8px; overflow-x: auto; }
.pd-thumb { width: 64px; height: 64px; border-radius: 6px; overflow: hidden; cursor: pointer; border: 2px solid transparent; flex-shrink: 0; }
.pd-thumb.active, .pd-thumb:hover { border-color: var(--accent); }
.pd-thumb img { width: 100%; height: 100%; object-fit: cover; }
.pd-info h2 { font-family: var(--font-display); font-size: 1.5rem; margin-bottom: 8px; }
.pd-info .pd-desc { color: var(--text-light); margin-bottom: 20px; font-size: 0.9rem; }
.pd-specs table { width: 100%; border-collapse: collapse; margin-bottom: 20px; }
.pd-specs td { padding: 8px 12px; font-size: 0.85rem; border-bottom: 1px solid var(--border); }
.pd-specs td:first-child { font-weight: 600; width: 40%; }

/* === Responsive === */
@media (max-width: 1024px) {
  .products-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-content { grid-template-columns: 1fr; }
  .hero-image { display: none; }
  .about-content { grid-template-columns: 1fr; }
  .contact-content { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .factory-gallery { grid-template-columns: repeat(2, 1fr); }
  .factory-grid { grid-template-columns: repeat(2, 1fr); }
  .factory-video-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-menu { position: fixed; top: 0; right: -100%; width: 280px; height: 100vh; background: var(--bg); flex-direction: column; padding: 80px 24px 24px; transition: right 0.3s ease; box-shadow: var(--shadow-lg); z-index: 1001; }
  .nav-menu.open { right: 0; }
  .nav-menu a { width: 100%; padding: 14px 0; border-bottom: 1px solid var(--border); }
  .nav-actions { flex-direction: column; width: 100%; margin-left: 0; margin-top: 16px; }
  .mobile-menu-toggle { display: flex; }
  
  .products-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .hero { padding: 60px 0; min-height: auto; }
  .hero-title { font-size: 2rem; }
  .hero-stats { gap: 20px; }
  .stat-number { font-size: 1.8rem; }
  .section-title { font-size: 1.6rem; }
  
  .service-process { flex-direction: column; }
  .process-arrow { transform: rotate(90deg); }
  .process-step { flex: none; width: 100%; }
  .patents-row { flex-wrap: wrap; }
  .patent-card { flex: 0 0 calc(33.33% - 8px); }
  
  .product-detail { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  
  .mobile-bottom-nav { display: flex; justify-content: space-around; }
  body { padding-bottom: 64px; }
  
  .whatsapp-float { bottom: 72px; right: 16px; width: 48px; height: 48px; font-size: 1.3rem; }
  .back-to-top { bottom: 72px; right: 72px; width: 36px; height: 36px; }
  
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .factory-grid { grid-template-columns: 1fr; }
  .factory-hero-img { aspect-ratio: 16/9; }
  .factory-video-grid { grid-template-columns: repeat(2, 1fr); }
  .video-lightbox-content { width: 95%; }
  .timeline::before { left: 20px; }
  .timeline-item { width: 100%; left: 0 !important; text-align: left !important; padding-left: 50px; padding-right: 16px; }
  .timeline-left .timeline-dot, .timeline-right .timeline-dot { left: 12px; right: auto; }
  .blog-grid { grid-template-columns: 1fr; }
  .hero-sample-cta { flex-direction: column; }
}

@media (max-width: 480px) {
  .products-grid { grid-template-columns: 1fr; }
  .showcase-card { flex: 0 0 168px; }
  .showcase-name { font-size: 0.8rem; height: 3.2em; }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { width: 100%; justify-content: center; }
  .hero-stats { flex-direction: column; gap: 12px; }
  .category-tabs { gap: 6px; }
  .tab-btn { padding: 8px 16px; font-size: 0.78rem; }
  .about-features { grid-template-columns: 1fr; }
  .factory-gallery { grid-template-columns: 1fr; }
  .factory-video-grid { grid-template-columns: 1fr; }
}

/* === Print === */
@media print {
  .header, .announcement-bar, .whatsapp-float, .back-to-top, .mobile-bottom-nav, .footer { display: none !important; }
  body { color: #000; }
  section { padding: 20px 0 !important; }
}

/* === Lightbox === */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 10000;
  align-items: center;
  justify-content: center;
}
.lightbox.active {
  display: flex;
}
.lightbox-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.92);
  cursor: pointer;
}
.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  z-index: 1;
}
.lightbox-content img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.5);
}
.lightbox-close {
  position: absolute;
  top: -48px;
  right: -8px;
  background: rgba(255,255,255,0.15);
  border: none;
  color: #fff;
  font-size: 28px;
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.lightbox-close:hover {
  background: rgba(255,255,255,0.3);
  transform: scale(1.1);
}

/* Factory cards hover */
.factory-card { cursor: pointer; }
.factory-hero-img { cursor: pointer; }

/* === WeChat Float Button === */
.wechat-float-btn {
  position: fixed;
  bottom: 148px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #07C160;
  color: #fff;
  font-size: 1.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(7,193,96,0.4);
  z-index: 999;
  transition: var(--transition);
  animation: wechatPulse 2s infinite;
}
.wechat-float-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(7,193,96,0.5);
}
@keyframes wechatPulse {
  0%,100%{ box-shadow: 0 4px 16px rgba(7,193,96,0.4) }
  50%{ box-shadow: 0 4px 16px rgba(7,193,96,0.4), 0 0 0 12px rgba(7,193,96,0.12) }
}

/* === WeChat Popup === */
.wechat-popup {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 10001;
  align-items: center;
  justify-content: center;
}
.wechat-popup.active {
  display: flex;
}
.wechat-popup::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
}
.wechat-popup-content {
  position: relative;
  background: #fff;
  border-radius: 16px;
  padding: 40px;
  text-align: center;
  max-width: 400px;
  width: 90%;
  z-index: 1;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  animation: wechatPopIn 0.3s ease;
}
@keyframes wechatPopIn {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.wechat-popup-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #f5f5f5;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: #666;
  cursor: pointer;
  transition: var(--transition);
}
.wechat-popup-close:hover {
  background: #e74c3c;
  color: #fff;
}
.wechat-popup-content h3 {
  font-family: var(--font-body);
  font-size: 1.2rem;
  font-weight: 700;
  color: #07C160;
  margin-bottom: 8px;
}
.wechat-popup-content > p {
  color: #666;
  font-size: 0.9rem;
  margin-bottom: 20px;
}
.wechat-popup-content img {
  width: 240px;
  height: 240px;
  object-fit: contain;
  border-radius: 8px;
  border: 2px solid #07C160;
  margin: 0 auto 16px;
  display: block;
}
.wechat-tip {
  color: #999;
  font-size: 0.8rem;
}
.wechat-placeholder {
  padding: 40px 20px;
  color: #999;
}
.wechat-placeholder i {
  font-size: 3rem;
  color: #ddd;
  margin-bottom: 12px;
  display: block;
}

/* Dark Mode Refinements */
[data-theme="dark"] .timeline-content { background: var(--bg-warm); border-color: var(--border); }
[data-theme="dark"] .blog-card { background: var(--bg-warm); }
[data-theme="dark"] .contact-map { border-color: var(--border); }
[data-theme="dark"] .map-hint { background: var(--bg-cream); }
[data-theme="dark"] .cert-thumb { border-color: rgba(255,255,255,0.2); }
[data-theme="dark"] .page-loader { background: #0a0a1a; }

/* Blog Article Modal */
.blog-article-header { margin-bottom: 24px; }
.blog-article-header .blog-tag { display: inline-block; margin-bottom: 12px; }
.blog-article-header h2 { font-family: var(--font-display); font-size: 1.6rem; font-weight: 700; color: var(--primary); line-height: 1.3; margin-bottom: 8px; }
[data-theme="dark"] .blog-article-header h2 { color: #fff; }
.blog-article-date { font-size: 0.82rem; color: var(--text-muted); }
.blog-article-hero { width: 100%; height: 240px; object-fit: cover; border-radius: var(--radius-md); margin-bottom: 24px; }
.blog-article-body { font-size: 0.92rem; line-height: 1.9; color: var(--text); }
.blog-article-body p { margin-bottom: 16px; }
.blog-article-body h4 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; color: var(--primary); margin: 24px 0 12px; }
[data-theme="dark"] .blog-article-body h4 { color: #fff; }
.blog-article-body strong { color: var(--accent-dark); }
[data-theme="dark"] .blog-article-body strong { color: var(--accent); }
.blog-article-cta { margin-top: 32px; padding: 24px; background: var(--bg-warm); border-radius: var(--radius-md); text-align: center; }
.blog-article-cta p { margin-bottom: 16px; font-size: 0.9rem; color: var(--text-light); }

/* === Section Background Images === */
.section-with-bg { position: relative; overflow: hidden; }
.section-with-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.18;
  z-index: 0;
}
.section-with-bg > .container { position: relative; z-index: 1; }

/* Timeline section - use injection molding workshop */
.timeline-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('assets/images/factory/001.jpg') center/cover no-repeat;
  filter: saturate(0.2) brightness(1.4) contrast(0.9);
  opacity: 0.55;
  z-index: 0;
}
.timeline-section { position: relative; overflow: hidden; }
.timeline-section > .container { position: relative; z-index: 1; }

/* Blog section - use printing room */
.blog-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('assets/images/factory/印刷间.jpg') center/cover no-repeat;
  filter: saturate(0.2) brightness(1.4) contrast(0.9);
  opacity: 0.55;
  z-index: 0;
}
.blog-section { position: relative; overflow: hidden; }
.blog-section > .container { position: relative; z-index: 1; }

/* Testimonials section - use factory panoramic */
.testimonials::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('assets/images/factory/002.jpg') center/cover no-repeat;
  filter: saturate(0.2) brightness(1.4) contrast(0.9);
  opacity: 0.55;
  z-index: 0;
}
.testimonials { position: relative; overflow: hidden; }
.testimonials > .container { position: relative; z-index: 1; }

/* Services section - use machinery */
.services::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('assets/images/factory/机器设备.jpg') center/cover no-repeat;
  filter: saturate(0.2) brightness(1.4) contrast(0.9);
  opacity: 0.55;
  z-index: 0;
}
.services { position: relative; overflow: hidden; }
.services > .container { position: relative; z-index: 1; }

/* FAQ section - use testing equipment */
.faq::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('assets/images/factory/测试笔芯.jpg') center/cover no-repeat;
  filter: saturate(0.2) brightness(1.4) contrast(0.9);
  opacity: 0.5;
  z-index: 0;
}
.faq { position: relative; overflow: hidden; }
.faq > .container { position: relative; z-index: 1; }

/* Factory gallery scrollable carousel */
.factory-gallery-scroll {
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) var(--bg-cream);
  padding-bottom: 12px;
  margin-bottom: 24px;
}
.factory-gallery-scroll::-webkit-scrollbar { height: 6px; }
.factory-gallery-scroll::-webkit-scrollbar-track { background: var(--bg-cream); border-radius: 3px; }
.factory-gallery-scroll::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }
.factory-gallery-track {
  display: flex;
  gap: 16px;
  width: max-content;
}
.factory-gallery-track .gallery-scroll-card {
  flex: 0 0 280px;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.factory-gallery-track .gallery-scroll-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}
.factory-gallery-track .gallery-scroll-card img {
  width: 280px;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: var(--transition);
}
.factory-gallery-track .gallery-scroll-card:hover img { transform: scale(1.05); }
.gallery-scroll-card .gallery-scroll-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 8px 12px;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  color: #fff;
  font-size: 0.8rem;
  font-weight: 500;
}
.gallery-scroll-hint {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.gallery-scroll-hint i { color: var(--accent); margin-right: 4px; }

/* ========================================
   AESTHETIC ENHANCEMENTS
   ======================================== */

/* === Decorative Section Headers === */
.section-title { position: relative; display: inline-block; }
.section-header .section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  margin: 16px auto 0;
  border-radius: 2px;
}

/* === Glassmorphism Cards === */
.testimonial-card {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.5);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  padding: 48px 40px;
  position: relative;
}
[data-theme="dark"] .testimonial-card {
  background: rgba(26,26,46,0.92);
  border-color: rgba(255,255,255,0.08);
}
.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 20px;
  left: 30px;
  font-family: Georgia, serif;
  font-size: 5rem;
  color: var(--accent);
  opacity: 0.15;
  line-height: 1;
}
.testimonial-text { font-size: 1.1rem; line-height: 2; color: var(--text); }

/* === Feature Cards Enhancement === */
.feature {
  background: linear-gradient(135deg, var(--bg-warm) 0%, var(--bg) 100%);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}
.feature::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light), var(--accent));
  opacity: 0;
  transition: var(--transition);
}
.feature:hover::before { opacity: 1; }
.feature:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.feature i { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px; border-radius: 50%; background: rgba(201,169,110,0.1); margin-bottom: 12px; }

/* === Blog Card Polish === */
.blog-card { overflow: hidden; }
.blog-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,26,46,0.3) 0%, transparent 50%);
  z-index: 1;
}
.blog-card-body h4 { transition: var(--transition); }
.blog-card:hover .blog-card-body h4 { color: var(--accent); }

/* === Timeline Card Enhancement === */
.timeline-content {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
[data-theme="dark"] .timeline-content {
  background: rgba(26,26,46,0.92);
}
.timeline-dot {
  transition: var(--transition);
}
.timeline-item:hover .timeline-dot {
  transform: scale(1.3);
  box-shadow: 0 0 0 6px rgba(201,169,110,0.2);
}

/* === Process Step Enhancement === */
.process-step {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-warm) 100%);
  border: 1px solid var(--border);
}
.process-step:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.step-number {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  box-shadow: 0 2px 8px rgba(201,169,110,0.3);
}

/* === Product Card Refinement === */
.product-card { border: none; box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
.product-card:hover { box-shadow: 0 12px 40px rgba(0,0,0,0.12); }
.product-badge { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); }

/* === Contact Form Glassmorphism === */
.contact-form-wrapper {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.5);
}
[data-theme="dark"] .contact-form-wrapper {
  background: rgba(26,26,46,0.95);
  border-color: rgba(255,255,255,0.08);
}

/* === FAQ Enhancement === */
.faq-item {
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
[data-theme="dark"] .faq-item {
  background: rgba(26,26,46,0.88);
}
.faq-item.active {
  background: rgba(255,255,255,0.95);
  box-shadow: 0 4px 20px rgba(201,169,110,0.12);
}
[data-theme="dark"] .faq-item.active {
  background: rgba(26,26,46,0.95);
}

/* === Hero Badge Enhancement === */
.hero-badge {
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* === Factory Card Premium Look === */
.factory-card {
  border: none;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.factory-card:hover { box-shadow: 0 12px 40px rgba(0,0,0,0.12); }
.factory-card-info { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-warm) 100%); }

/* === Smooth Scroll Snap for Gallery === */
.factory-gallery-scroll {
  scroll-snap-type: x proximity;
}
.gallery-scroll-card {
  scroll-snap-align: start;
}

/* === Button Refinements === */
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  box-shadow: 0 2px 8px rgba(201,169,110,0.25);
}
.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(201,169,110,0.4);
}

/* === Footer Enhancement === */
.footer {
  background: linear-gradient(180deg, var(--primary) 0%, #0f0f1e 100%);
}

/* === Author Avatar Enhancement === */
.author-avatar {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  box-shadow: 0 2px 8px rgba(201,169,110,0.3);
}

/* === Gallery Scroll Card Polish === */
.gallery-scroll-card {
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  border: none;
}
.gallery-scroll-card:hover {
  box-shadow: 0 12px 40px rgba(0,0,0,0.12);
}

/* About Factory Mini Gallery */
.about-factory-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 12px;
}
.about-factory-thumb {
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid var(--border);
}
.about-factory-thumb:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}
.about-factory-thumb img {
  width: 100%;
  height: 110px;
  object-fit: cover;
  display: block;
  transition: var(--transition);
}
.about-factory-thumb:hover img {
  transform: scale(1.06);
}

/* ========================================
   PREMIUM UPGRADE — dark-luxury layer
   ======================================== */

/* Gold scroll progress bar */
.scroll-progress { position: fixed; top: 0; left: 0; height: 3px; width: 0; background: linear-gradient(90deg, var(--accent), #e6cf9a); z-index: 2000; box-shadow: 0 0 10px rgba(201,169,110,0.55); transition: width 0.1s linear; }

/* Custom scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #2d2d44; border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }
::selection { background: rgba(201,169,110,0.35); color: #fff; }

/* Hero cinematic video background */
.hero-video { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.hero-video video { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.5) saturate(0.85); }
.hero-with-bg .hero-video ~ .container { position: relative; z-index: 1; }
.hero-title { font-size: clamp(2.6rem, 5vw, 4.3rem); letter-spacing: -0.5px; }
.hero-subtitle { font-size: 1.18rem; }
.stat-number { text-shadow: 0 0 24px rgba(201,169,110,0.45); }
.hero-badge { border: 1px solid rgba(201,169,110,0.45); box-shadow: 0 0 18px rgba(201,169,110,0.18) inset; }

/* Typography scale + gold underline on centered section titles */
.section-title { font-size: clamp(2rem, 4vw, 3.1rem); letter-spacing: -0.3px; }
.section-header .section-title { position: relative; padding-bottom: 16px; }
.section-header .section-title::after { content: ''; position: absolute; left: 50%; transform: translateX(-50%); bottom: 0; width: 56px; height: 3px; border-radius: 2px; background: linear-gradient(90deg, var(--accent), #e6cf9a); }

/* Gold hairline cards */
.product-card, .blog-card, .factory-card, .testimonial-card, .feature, .timeline-content, .process-step {
  border: 1px solid rgba(201,169,110,0.16);
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.product-card:hover, .blog-card:hover, .factory-card:hover, .testimonial-card:hover, .feature:hover, .process-step:hover {
  border-color: rgba(201,169,110,0.55);
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.28);
}

/* Nav gold underline */
.nav-menu a { position: relative; }
.nav-menu a::after { content: ''; position: absolute; left: 16px; right: 16px; bottom: 3px; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform 0.3s ease; border-radius: 1px; }
.nav-menu a:hover::after, .nav-menu a.active::after { transform: scaleX(1); }

/* Button shine sweep */
.btn-primary { position: relative; overflow: hidden; }
.btn-primary::before { content: ''; position: absolute; top: 0; left: -80%; width: 50%; height: 100%; background: linear-gradient(105deg, transparent, rgba(255,255,255,0.4), transparent); transform: skewX(-20deg); transition: left 0.6s ease; pointer-events: none; }
.btn-primary:hover::before { left: 130%; }

/* Alibaba orange button */
.btn-ali { border-color: #ff6a00; color: #ff6a00; }
.btn-ali:hover { background: #ff6a00; color: #fff; }

/* Quote band */
.quote-band { position: relative; padding: 120px 24px; text-align: center; color: #fff; background: url('assets/images/factory/004.jpg') center/cover no-repeat fixed; overflow: hidden; }
.quote-band::before { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(15,15,30,0.88) 0%, rgba(26,26,46,0.82) 50%, rgba(15,15,30,0.9) 100%); }
.quote-band-inner { position: relative; z-index: 1; max-width: 900px; margin: 0 auto; }
.quote-mark { display: block; font-family: var(--font-display); font-size: 5rem; line-height: 0.6; color: var(--accent); opacity: 0.85; margin-bottom: 18px; }
.quote-text { font-family: var(--font-display); font-size: clamp(1.7rem, 3.6vw, 2.9rem); font-weight: 700; line-height: 1.35; margin-bottom: 14px; }
.quote-sub { letter-spacing: 4px; font-size: 0.8rem; color: var(--accent); text-transform: uppercase; margin-bottom: 52px; }
.quote-stats { display: flex; justify-content: center; gap: clamp(28px, 6vw, 72px); flex-wrap: wrap; }
.quote-stat { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.qs-num { font-family: var(--font-display); font-size: 2.6rem; font-weight: 700; color: var(--accent); line-height: 1.1; }
.qs-unit { font-size: 0.85rem; color: rgba(255,255,255,0.85); }
.qs-label { font-size: 0.72rem; letter-spacing: 2px; text-transform: uppercase; color: rgba(255,255,255,0.6); margin-top: 6px; }

/* Contact QR cards */
.qr-cards { display: flex; gap: 16px; margin: 20px 0 6px; flex-wrap: wrap; }
.qr-card { background: #fff; padding: 10px 10px 12px; border-radius: 14px; width: 158px; text-align: center; box-shadow: 0 8px 28px rgba(0,0,0,0.25); transition: transform 0.3s ease; }
.qr-card:hover { transform: translateY(-4px); }
.qr-card img { width: 100%; border-radius: 8px; }
.qr-card-label { display: block; margin-top: 8px; font-weight: 700; color: #1a1a2e; font-size: 0.85rem; }

/* Big WhatsApp CTA */
.whatsapp-cta-big { display: flex; align-items: center; gap: 16px; padding: 16px 22px; border-radius: 14px; background: linear-gradient(135deg, #25D366, #128C7E); color: #fff; margin: 20px 0 28px; box-shadow: 0 10px 28px rgba(37,211,102,0.28); transition: transform 0.3s ease, box-shadow 0.3s ease; }
.whatsapp-cta-big:hover { transform: translateY(-3px); box-shadow: 0 14px 36px rgba(37,211,102,0.4); }
.whatsapp-cta-big > i.fa-whatsapp { font-size: 2.1rem; }
.wa-cta-text { display: flex; flex-direction: column; line-height: 1.35; text-align: left; }
.wa-cta-text strong { font-size: 1.05rem; }
.wa-cta-text em { font-style: normal; font-size: 0.78rem; opacity: 0.88; }
.wa-cta-arrow { margin-left: auto; transition: transform 0.3s ease; }
.whatsapp-cta-big:hover .wa-cta-arrow { transform: translateX(5px); }

/* Dual QR popup */
.wechat-popup-dual { max-width: 560px; width: 92%; }
.popup-qr-row { display: flex; gap: 18px; justify-content: center; margin: 20px 0 14px; flex-wrap: wrap; }
.popup-qr-item { background: #fff; padding: 10px 10px 12px; border-radius: 14px; width: 200px; text-align: center; }
.popup-qr-item img { width: 100%; border-radius: 8px; }
.popup-qr-name { display: block; font-weight: 700; color: #1a1a2e; margin-top: 8px; font-size: 0.95rem; }
.popup-qr-num { display: block; font-size: 0.76rem; color: #6b6b6b; margin-top: 2px; }

/* Testimonial flag */
.author-flag { font-size: 1.05rem; margin-left: 4px; }

/* Dark-mode refinements */
[data-theme="dark"] .product-card-img { background: #fff; }
[data-theme="dark"] .qr-card, [data-theme="dark"] .popup-qr-item { background: #fff; }

/* Hero fixes: clearance under transparent header, title wrap, video visibility */
.hero { padding-top: 150px; }
.hero-title { font-size: clamp(2.4rem, 4.2vw, 3.9rem); }
.hero-video video { filter: brightness(0.72) saturate(0.9); }
.hero-with-bg::after { background: linear-gradient(135deg, rgba(26,26,46,0.62) 0%, rgba(45,45,68,0.5) 100%); }

/* Dark theme: dim section background photos so white titles stay readable */
[data-theme="dark"] .timeline-section::before,
[data-theme="dark"] .blog-section::before,
[data-theme="dark"] .testimonials::before,
[data-theme="dark"] .services::before,
[data-theme="dark"] .faq::before,
[data-theme="dark"] .section-with-bg::before {
  filter: saturate(0.25) brightness(0.72) contrast(1.05);
  opacity: 0.32;
}