/* ========== CSS Reset & Base ========== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --primary: #FF6B35;
  --primary-dark: #E8432A;
  --primary-light: #FF8F65;
  --accent: #FFD23F;
  --accent-pink: #FF4F81;
  --dark: #1a1a2e;
  --dark2: #16213e;
  --gray: #6c757d;
  --light: #f8f9fa;
  --white: #ffffff;
  --glass-bg: rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.15);
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --shadow-primary: 0 4px 20px rgba(255,107,53,0.35);
  --radius: 16px;
  --transition: all 0.3s ease;
  --gradient-brand: linear-gradient(135deg, #FF6B35, #E8432A);
  --gradient-warm: linear-gradient(135deg, #FF6B35, #FF4F81);
  --gradient-sunset: linear-gradient(135deg, #FF6B35, #FFD23F);
}
html { scroll-behavior: smooth; }
body {
  font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  color: #333;
  line-height: 1.7;
  overflow-x: hidden;
  background-color: var(--white);
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
section { padding: 80px 0; }
h1, h2, h3, h4 { line-height: 1.3; }

/* ========== Header / Navigation ========== */
.header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  background: var(--white);
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  transition: var(--transition);
}
.header .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 80px;
}
.logo {
  font-size: 24px; font-weight: 800; color: var(--dark);
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
  white-space: nowrap;
}
.logo .logo-text {
  display: flex; align-items: baseline; gap: 0;
  letter-spacing: -0.5px;
  line-height: 1;
}
.logo .logo-text .zh-part { color: var(--dark); font-size: 22px; }
.logo .logo-text .zh-accent { color: var(--primary); font-size: 22px; }
.logo .logo-text .en-sub {
  display: block; font-size: 10px; font-weight: 500;
  color: var(--gray); letter-spacing: 1px; line-height: 1;
  text-transform: uppercase;
}
.logo .icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--gradient-brand);
  box-shadow: 0 3px 10px rgba(255,107,53,0.35);
}
.logo .icon svg { width: 32px; height: 32px; }
.logo span { color: var(--primary); }
.nav { display: flex; gap: 8px; }
.nav a {
  padding: 8px 18px; border-radius: 8px; font-weight: 500;
  font-size: 15px; color: var(--dark);
}
.nav a:hover, .nav a.active { background: var(--primary); color: var(--white); }
.nav-toggle { display: none; font-size: 28px; cursor: pointer; background: none; border: none; }

/* ========== Hero Carousel ========== */
.hero-carousel {
  margin-top: 80px;
  position: relative;
  width: 100%;
  overflow: hidden;
}
.carousel-track {
  display: flex;
  transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}
.carousel-slide {
  min-width: 100%;
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.carousel-slide .slide-bg {
  position: absolute; inset: 0;
  z-index: 0;
}
.carousel-slide .slide-bg::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(26,26,46,0.75), rgba(15,52,96,0.55));
  z-index: 1;
}
.carousel-slide .container {
  position: relative; z-index: 2;
  display: flex; align-items: center; justify-content: space-between;
  gap: 60px;
}
.slide-text { flex: 1; color: var(--white); }
.slide-text .badge {
  display: inline-block; background: rgba(255,107,53,0.2);
  border: 1px solid rgba(255,107,53,0.4);
  color: #FF8F65; padding: 6px 16px; border-radius: 50px;
  font-size: 13px; font-weight: 600; letter-spacing: 1px;
  text-transform: uppercase; margin-bottom: 20px;
}
.slide-text h1 { font-size: 48px; font-weight: 800; margin-bottom: 20px; line-height: 1.2; }
.slide-text h1 .highlight { color: var(--primary); }
.slide-text p { font-size: 18px; color: rgba(255,255,255,0.75); margin-bottom: 36px; max-width: 520px; }
.slide-visual {
  flex: 0 0 400px; height: 400px;
  border-radius: 30px; border: 1px solid rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, rgba(255,107,53,0.08), rgba(15,52,96,0.15));
}
.slide-visual .slide-icon {
  font-size: 120px; opacity: 0.35; position: relative; z-index: 1;
}
.slide-visual::before {
  content: ''; position: absolute; width: 180px; height: 180px;
  background: radial-gradient(circle, rgba(255,107,53,0.25), transparent);
  border-radius: 50%; top: 25%; left: 25%;
  animation: float 6s ease-in-out infinite;
}
/* Carousel Controls */
.carousel-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 52px; height: 52px; border-radius: 50%;
  background: rgba(255,255,255,0.15); backdrop-filter: blur(8px);
  border: 2px solid rgba(255,255,255,0.2);
  color: white; font-size: 22px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition); z-index: 10;
}
.carousel-btn:hover {
  background: var(--primary); border-color: var(--primary);
  transform: translateY(-50%) scale(1.1);
}
.carousel-prev { left: 24px; }
.carousel-next { right: 24px; }
/* Carousel Dots */
.carousel-dots {
  position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 10px; z-index: 10;
}
.carousel-dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: rgba(255,255,255,0.3); border: none;
  cursor: pointer; transition: var(--transition);
}
.carousel-dot.active {
  background: var(--primary); transform: scale(1.3);
  box-shadow: 0 0 10px rgba(255,107,53,0.5);
}
.carousel-dot:hover { background: rgba(255,255,255,0.6); }

/* Slide background variants */
.slide-bg-1 { background: linear-gradient(135deg, #1a1a2e, #2d1b3d, #FF6B35); }
.slide-bg-2 { background: linear-gradient(135deg, #1a1a2e, #16213e, #E8432A); }
.slide-bg-3 { background: linear-gradient(135deg, #0f3460, #1a1a2e, #FF4F81); }
.slide-bg-4 { background: linear-gradient(135deg, #2d1b3d, #1a1a2e, #FFD23F); }

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1) rotate(0deg); }
  33% { transform: translateY(-15px) scale(1.03) rotate(1deg); }
  66% { transform: translateY(-8px) scale(1.01) rotate(-1deg); }
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,107,53,0.4); }
  50% { box-shadow: 0 0 20px 5px rgba(255,107,53,0.2); }
}
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: 10px;
  font-size: 16px; font-weight: 600;
  transition: var(--transition); cursor: pointer; border: none;
}
.btn-primary {
  background: var(--gradient-brand); color: var(--white);
  box-shadow: var(--shadow-primary);
  position: relative; overflow: hidden;
}
.btn-primary::before {
  content: ''; position: absolute;
  top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}
.btn-primary:hover::before { left: 100%; }
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 25px rgba(255,107,53,0.5);
}
.btn-outline {
  background: transparent; color: var(--white);
  border: 2px solid rgba(255,255,255,0.3);
}
.btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,0.1); }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }

/* ========== Stats Bar ========== */
.stats {
  background: var(--gradient-brand); padding: 50px 0;
  color: white;
}
.stats .container {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px;
}
.stat-item { text-align: center; }
.stat-item .number {
  font-size: 48px; font-weight: 900; color: white;
  display: block;
  text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}
.stat-item .label { color: rgba(255,255,255,0.85); font-size: 15px; margin-top: 6px; }

/* ========== Section Header ========== */
.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 { font-size: 36px; font-weight: 800; color: var(--dark); margin-bottom: 16px; }
.section-header p { color: var(--gray); font-size: 17px; max-width: 600px; margin: 0 auto; }
.section-header .line {
  width: 60px; height: 4px; background: var(--gradient-brand);
  border-radius: 2px; margin: 16px auto 0;
}

/* ========== Services / Features ========== */
.services { background: var(--light); }
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px;
}
.service-card {
  background: rgba(255,255,255,0.92); padding: 40px 30px; border-radius: var(--radius);
  box-shadow: var(--shadow); transition: var(--transition);
  position: relative; overflow: hidden;
  border: 1px solid rgba(255,255,255,0.4);
}
.service-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.service-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 4px; background: var(--primary); transform: scaleX(0);
  transition: var(--transition);
}
.service-card:hover::after { transform: scaleX(1); }
.service-icon {
  width: 64px; height: 64px; border-radius: 16px;
  background: var(--gradient-warm);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 24px; color: white; font-size: 28px;
}
.service-card h3 { font-size: 20px; margin-bottom: 12px; color: var(--dark); }
.service-card p { color: var(--gray); font-size: 15px; }

/* ========== Products ========== */
.products-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.product-card {
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); transition: var(--transition);
  background: var(--white);
}
.product-card:hover { transform: translateY(-8px) scale(1.02); box-shadow: var(--shadow-lg); }
.product-img {
  height: 220px; position: relative; overflow: hidden;
}
.product-img .placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 48px; color: rgba(255,255,255,0.6);
}
.product-info { padding: 20px; }
.product-info h4 { font-size: 15px; color: var(--dark); margin-bottom: 8px; font-weight: 600; }
.product-info .category { color: var(--gray); font-size: 13px; }
.product-info .inquiry-btn {
  display: inline-block; margin-top: 12px; padding: 6px 16px;
  background: var(--primary); color: white; border-radius: 6px;
  font-size: 13px; font-weight: 600;
}
.product-info .inquiry-btn:hover { background: var(--primary-dark); }

/* ========== Process Section ========== */
.process { background: var(--dark); color: var(--white); }
.process .section-header h2 { color: var(--white); }
.process .section-header p { color: rgba(255,255,255,0.6); }
.process-steps {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px;
}
.step {
  text-align: center; position: relative; padding: 30px 20px;
}
.step-number {
  width: 60px; height: 60px; border-radius: 50%;
  background: var(--gradient-brand); color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; font-weight: 800; margin: 0 auto 20px;
  animation: pulse-glow 3s ease-in-out infinite;
}
.step h4 { font-size: 18px; margin-bottom: 10px; }
.step p { color: rgba(255,255,255,0.6); font-size: 14px; }

/* ========== About Section ========== */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.about-image {
  height: 450px; border-radius: var(--radius); overflow: hidden;
  position: relative;
}
.about-image .placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, #1a1a2e, #0f3460);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.2); font-size: 80px;
}
.about-content h2 { font-size: 36px; font-weight: 800; color: var(--dark); margin-bottom: 20px; }
.about-content p { color: var(--gray); margin-bottom: 16px; font-size: 16px; }
.about-features { margin-top: 24px; }
.about-features li {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 0; font-size: 15px; color: var(--dark);
}
.about-features li .check {
  width: 28px; height: 28px; border-radius: 50%;
  background: rgba(255,107,53,0.1); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; flex-shrink: 0;
}

/* ========== Categories ========== */
.categories-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.category-card {
  position: relative; height: 280px; border-radius: var(--radius);
  overflow: hidden; cursor: pointer;
}
.category-card .bg {
  width: 100%; height: 100%; transition: var(--transition);
}
.category-card:hover .bg { transform: scale(1.05); }
.category-card .overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
  display: flex; align-items: flex-end; padding: 30px;
}
.category-card .overlay h3 { color: white; font-size: 22px; }
.category-card .overlay p { color: rgba(255,255,255,0.7); font-size: 14px; margin-top: 4px; }

/* ========== Testimonials ========== */
.testimonials { background: var(--light); }
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.testimonial-card {
  background: var(--white); padding: 36px; border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.testimonial-card .quote { font-size: 40px; color: var(--primary); line-height: 1; margin-bottom: 16px; }
.testimonial-card p { color: var(--gray); font-style: italic; margin-bottom: 20px; font-size: 15px; }
.testimonial-card .author { font-weight: 700; color: var(--dark); }
.testimonial-card .role { color: var(--gray); font-size: 13px; }

/* ========== CTA Section ========== */
.cta {
  background: var(--gradient-brand);
  text-align: center; color: white;
}
.cta h2 { font-size: 36px; font-weight: 800; margin-bottom: 16px; }
.cta p { font-size: 18px; opacity: 0.9; margin-bottom: 30px; max-width: 600px; margin-left: auto; margin-right: auto; }
.btn-white { background: white; color: var(--primary); font-weight: 700; }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,0,0,0.2); }

/* ========== Contact Page ========== */
.contact-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 12px;
}
.contact-big-card {
  background: white;
  border-radius: 18px;
  padding: 36px 28px;
  text-align: center;
  box-shadow: 0 4px 24px rgba(0,0,0,0.07);
  border: 1px solid rgba(0,0,0,0.05);
  transition: var(--transition);
}
.contact-big-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(255,107,53,0.15);
  border-color: rgba(255,107,53,0.25);
}
.contact-big-icon {
  width: 72px; height: 72px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--primary), #ff4f81);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 30px;
  margin: 0 auto 20px;
  box-shadow: 0 8px 20px rgba(255,107,53,0.3);
}
.contact-big-card h3 {
  font-size: 18px; font-weight: 700;
  color: var(--dark); margin-bottom: 10px;
}
.contact-big-val {
  font-size: 15px; font-weight: 600;
  color: var(--primary); margin-bottom: 6px;
  word-break: break-all;
}
.contact-big-sub {
  font-size: 13px; color: var(--gray);
}

/* Process steps */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  margin-top: 12px;
}
.process-steps::before {
  content: '';
  position: absolute;
  top: 36px; left: calc(12.5% + 12px); right: calc(12.5% + 12px);
  height: 2px;
  background: linear-gradient(90deg, var(--primary), #ff4f81);
  z-index: 0;
}
.step {
  background: white;
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  position: relative;
  z-index: 1;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  border: 1px solid rgba(0,0,0,0.05);
  transition: var(--transition);
}
.step:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 32px rgba(255,107,53,0.13);
}
.step-number {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #ff4f81);
  color: white;
  font-size: 22px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 18px;
  box-shadow: 0 6px 18px rgba(255,107,53,0.35);
}
.step h4 {
  font-size: 16px; font-weight: 700;
  color: var(--dark); margin-bottom: 10px;
}
.step p {
  font-size: 14px; color: var(--gray); line-height: 1.6;
}

/* keep old styles for potential fallback */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
}
.contact-info-cards { display: flex; flex-direction: column; gap: 20px; }
.contact-info-card {
  display: flex; gap: 16px; padding: 24px;
  background: var(--light); border-radius: var(--radius);
}
.contact-info-card .icon-box {
  width: 50px; height: 50px; border-radius: 12px;
  background: var(--primary); color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; flex-shrink: 0;
}
.contact-info-card h4 { font-size: 16px; color: var(--dark); margin-bottom: 4px; }
.contact-info-card p { color: var(--gray); font-size: 14px; }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-weight: 600; font-size: 14px; color: var(--dark); }
.form-group input, .form-group textarea, .form-group select {
  padding: 12px 16px; border: 2px solid #e9ecef; border-radius: 10px;
  font-size: 15px; font-family: inherit; transition: var(--transition);
  outline: none;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  border-color: var(--primary);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ========== Page Banner ========== */
.page-banner {
  margin-top: 80px;
  padding: 0;
  position: relative;
  overflow: hidden;
  color: white;
  min-height: 280px;
  display: flex;
  align-items: center;
}
.page-banner::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 50%, rgba(255,107,53,0.25) 100%);
  z-index: 0;
}
.page-banner::after {
  content: '';
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 80% 50%, rgba(255,107,53,0.18) 0%, transparent 55%),
    radial-gradient(circle at 15% 80%, rgba(255,79,129,0.12) 0%, transparent 45%);
  z-index: 0;
}
.page-banner .container {
  position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 60px; padding-bottom: 60px;
  width: 100%;
}
.page-banner-content { flex: 1; }
.page-banner-visual {
  flex-shrink: 0; margin-left: 40px;
  display: flex; gap: 16px; align-items: center;
}
.page-banner-icon {
  width: 80px; height: 80px; border-radius: 20px;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 36px;
  animation: float-icon 3s ease-in-out infinite;
}
.page-banner-icon:nth-child(2) { animation-delay: 0.8s; width: 64px; height: 64px; font-size: 28px; }
.page-banner-icon:nth-child(3) { animation-delay: 1.6s; width: 56px; height: 56px; font-size: 24px; }
@keyframes float-icon {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.page-banner .breadcrumb {
  color: rgba(255,255,255,0.55); font-size: 14px;
  margin-bottom: 14px; display: flex; align-items: center; gap: 6px;
}
.page-banner .breadcrumb a { color: rgba(255,255,255,0.75); }
.page-banner .breadcrumb a:hover { color: white; }
.page-banner .breadcrumb-sep { opacity: 0.4; }
.page-banner h1 {
  font-size: 40px; font-weight: 900; margin-bottom: 10px;
  line-height: 1.15;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.page-banner h1 .highlight-text { color: var(--primary-light); }
.page-banner .banner-desc {
  font-size: 15px; color: rgba(255,255,255,0.7);
  margin-bottom: 20px; max-width: 500px; line-height: 1.7;
}
.page-banner .banner-tags {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.page-banner .banner-tag {
  padding: 5px 14px; border-radius: 20px; font-size: 13px; font-weight: 500;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.9);
  backdrop-filter: blur(4px);
}
.page-banner .banner-tag.active {
  background: var(--primary); border-color: var(--primary);
  color: white;
}

/* ========== Footer ========== */
.footer {
  background: var(--dark); color: rgba(255,255,255,0.7); 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-brand .logo { color: white; margin-bottom: 16px; }
.footer-brand .logo .zh-part { color: rgba(255,255,255,0.95); }
.footer-brand .logo .zh-accent { color: var(--primary-light); }
.footer-brand p { font-size: 14px; line-height: 1.8; }
.footer h4 { color: white; font-size: 16px; margin-bottom: 20px; }
.footer ul li { margin-bottom: 10px; }
.footer ul li a { font-size: 14px; color: rgba(255,255,255,0.6); }
.footer ul li a:hover { color: var(--primary); }
.footer-bottom {
  padding: 20px 0; text-align: center; font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* ========== Why Choose Us ========== */
.why-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px;
}
.why-card {
  display: flex; gap: 20px; padding: 30px;
  background: var(--white); border-radius: var(--radius);
  box-shadow: var(--shadow); transition: var(--transition);
}
.why-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.why-card .num {
  width: 50px; height: 50px; border-radius: 12px;
  background: var(--gradient-warm);
  color: white; display: flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 800; flex-shrink: 0;
}
.why-card h3 { font-size: 18px; color: var(--dark); margin-bottom: 8px; }
.why-card p { color: var(--gray); font-size: 14px; }

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .slide-text h1 { font-size: 36px; }
  .slide-visual { flex: 0 0 300px; height: 300px; }
  .products-grid { grid-template-columns: repeat(3, 1fr); }
  .stats .container { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav { display: none; position: absolute; top: 80px; left: 0; right: 0;
    background: white; flex-direction: column; padding: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1); z-index: 999; }
  .nav.active { display: flex; }
  .nav-toggle { display: block; }
  .lang-switch { margin-left: auto; margin-right: 8px; }
  .carousel-slide .container { flex-direction: column; text-align: center; }
  .slide-visual { flex: none; width: 100%; max-width: 300px; height: 280px; }
  .slide-text p { margin: 0 auto 36px; }
  .hero-btns { justify-content: center; }
  .carousel-slide { min-height: 520px; }
  .carousel-btn { width: 40px; height: 40px; font-size: 18px; }
  .carousel-prev { left: 12px; }
  .carousel-next { right: 12px; }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .categories-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-cards-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .bases-grid { grid-template-columns: 1fr; }
  .clients-scroll { gap: 30px; }
  .page-banner-visual { display: none; }
  .page-banner .container { flex-direction: column; }
  .page-banner h1 { font-size: 28px; }
  .page-banner .banner-desc { font-size: 14px; }
}
@media (max-width: 480px) {
  .products-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .contact-cards-grid { grid-template-columns: 1fr; }
  .stats .container { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .slide-text h1 { font-size: 28px; }
  .section-header h2 { font-size: 28px; }
}

/* ========== Placeholder Backgrounds ========== */
.bg-1 { background: linear-gradient(135deg, #667eea, #764ba2); }
.bg-2 { background: linear-gradient(135deg, #f093fb, #f5576c); }
.bg-3 { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.bg-4 { background: linear-gradient(135deg, #43e97b, #38f9d7); }
.bg-5 { background: linear-gradient(135deg, #fa709a, #fee140); }
.bg-6 { background: linear-gradient(135deg, #a18cd1, #fbc2eb); }
.bg-7 { background: linear-gradient(135deg, #fccb90, #d57eeb); }
.bg-8 { background: linear-gradient(135deg, #e0c3fc, #8ec5fc); }

/* ========== Clients Bar ========== */
.clients-bar { padding: 50px 0; background: var(--white); border-bottom: 1px solid #eee; }
.clients-label {
  text-align: center; color: var(--gray); font-size: 13px;
  text-transform: uppercase; letter-spacing: 2px;
  margin-bottom: 30px; display: block;
}
.clients-scroll {
  display: flex; justify-content: center; align-items: center;
  gap: 60px; flex-wrap: wrap;
}
.client-item {
  font-size: 20px; font-weight: 800; color: #ccc;
  transition: var(--transition); cursor: default; letter-spacing: 1px;
}
.client-item:hover { color: var(--primary); transform: scale(1.1); }

/* ========== Production Bases ========== */
.bases-section { background: var(--light); }
.bases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.base-card {
  text-align: center; padding: 40px 30px;
  background: var(--white); border-radius: var(--radius);
  box-shadow: var(--shadow); transition: var(--transition);
  position: relative;
}
.base-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--gradient-brand); border-radius: var(--radius) var(--radius) 0 0;
}
.base-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.base-icon {
  width: 80px; height: 80px; border-radius: 50%;
  background: var(--gradient-sunset); color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 36px; margin: 0 auto 20px;
}
.base-card h3 { font-size: 20px; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.base-card p { color: var(--gray); font-size: 14px; line-height: 1.7; }

/* ========== Cert Badges ========== */
.cert-badges {
  display: flex; gap: 20px; flex-wrap: wrap;
  margin-top: 30px; justify-content: center;
}
.cert-badge {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 20px; background: var(--white);
  border-radius: var(--radius); box-shadow: var(--shadow);
  border: 2px solid rgba(255,107,53,0.2);
}
.cert-badge .cert-icon {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--gradient-brand); color: white;
  display: flex; align-items: center; justify-content: center; font-size: 18px;
}
.cert-badge span { font-weight: 700; color: var(--dark); font-size: 14px; }

/* ========== Scroll Animations ========== */
.fade-in {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ========== Language Switcher ========== */
.lang-switch {
  display: flex; align-items: center; gap: 0;
  margin-left: 12px; border: 2px solid #e9ecef; border-radius: 8px; overflow: hidden;
}
.lang-btn {
  padding: 6px 14px; font-size: 13px; font-weight: 700;
  cursor: pointer; border: none; background: transparent;
  color: var(--gray); transition: var(--transition);
  letter-spacing: 0.5px;
}
.lang-btn:hover { color: var(--dark); }
.lang-btn.active {
  background: var(--primary); color: var(--white);
}

/* Language visibility rules */
body.lang-zh .en { display: none !important; }
body.lang-zh .zh { display: inline; }
body.lang-en .zh { display: none !important; }
body.lang-en .en { display: inline; }

/* Block-level language elements */
body.lang-zh .en-block { display: none !important; }
body.lang-zh .zh-block { display: block; }
body.lang-en .zh-block { display: none !important; }
body.lang-en .en-block { display: block; }

/* Flex-level language elements */
body.lang-zh .en-flex { display: none !important; }
body.lang-zh .zh-flex { display: flex; }
body.lang-en .zh-flex { display: none !important; }
body.lang-en .en-flex { display: flex; }

/* ========== Map Section ========== */
.map-wrapper {
  margin-top: 12px;
}
.map-address-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  background: white;
  border-radius: 14px;
  padding: 20px 24px;
  margin-bottom: 16px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.07);
  border: 1px solid rgba(0,0,0,0.06);
}
.map-address-icon {
  font-size: 28px;
  flex-shrink: 0;
}
.map-address-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.map-address-text strong {
  color: var(--dark);
  font-size: 15px;
}
.map-address-text span {
  color: var(--gray);
  font-size: 14px;
  line-height: 1.5;
}
.map-nav-btn {
  flex-shrink: 0;
  font-size: 14px !important;
  padding: 10px 22px !important;
  white-space: nowrap;
}
.map-container {
  width: 100%;
  height: 400px;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 6px 30px rgba(0,0,0,0.1);
  border: 1px solid rgba(0,0,0,0.08);
}

@media (max-width: 768px) {
  .map-address-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .map-nav-btn {
    width: 100%;
    justify-content: center;
  }
}

/* ========== Manufacturing Capacity ========== */
.manufacturing {
  padding: 100px 0;
  background: var(--white);
}
.capacity-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin: 40px 0 50px;
}
.capacity-stat {
  text-align: center;
  padding: 32px 20px;
  background: var(--light);
  border-radius: var(--radius);
  transition: var(--transition);
}
.capacity-stat:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.capacity-stat-icon {
  font-size: 36px;
  margin-bottom: 12px;
}
.capacity-stat-number {
  font-size: 42px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
}
.capacity-stat-number .unit {
  font-size: 18px;
  font-weight: 600;
  color: var(--gray);
}
.capacity-stat-label {
  font-size: 15px;
  color: var(--gray);
  margin-top: 8px;
}

/* Capacity Gallery */
.capacity-gallery {
  position: relative;
  margin-bottom: 50px;
}
.capacity-gallery-track {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 8px 0;
}
.capacity-gallery-track::-webkit-scrollbar { display: none; }
.capacity-img-item {
  flex: 0 0 calc(25% - 12px);
  scroll-snap-align: start;
  border-radius: 14px;
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.capacity-img-item:hover {
  transform: scale(1.03);
  box-shadow: var(--shadow-lg);
}
.capacity-img-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.capacity-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: var(--white);
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
  cursor: pointer;
  font-size: 18px;
  color: var(--dark);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 2;
}
.capacity-nav:hover {
  background: var(--primary);
  color: white;
}
.capacity-prev { left: -8px; }
.capacity-next { right: -8px; }

/* Workshop */
.workshop-section h3 {
  font-size: 22px;
  color: var(--dark);
  margin-bottom: 24px;
}
.workshop-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.workshop-card {
  border-radius: 14px;
  overflow: hidden;
  background: var(--light);
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.workshop-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.workshop-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}
.workshop-label {
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--dark);
  text-align: center;
}

/* ========== Honors & Qualifications ========== */
.honors {
  padding: 100px 0;
  background: var(--light);
}
.honors-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.honor-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.honor-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.honor-img {
  aspect-ratio: 4/5;
  overflow: hidden;
}
.honor-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.honor-card:hover .honor-img img {
  transform: scale(1.05);
}
.honor-info {
  padding: 24px;
}
.honor-info h4 {
  font-size: 18px;
  color: var(--dark);
  margin-bottom: 8px;
}
.honor-info p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.6;
}

/* Responsive - Manufacturing & Honors */
@media (max-width: 1024px) {
  .capacity-img-item {
    flex: 0 0 calc(33.33% - 11px);
  }
  .workshop-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 768px) {
  .capacity-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .capacity-img-item {
    flex: 0 0 calc(50% - 8px);
  }
  .workshop-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .honors-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }
}
@media (max-width: 480px) {
  .capacity-img-item {
    flex: 0 0 calc(80% - 8px);
  }
  .workshop-grid {
    grid-template-columns: 1fr;
  }
  .capacity-stat-number {
    font-size: 32px;
  }
}