:root {
  --primary-blue: #1B3A5C;
  --primary-gold: #C8A96E;
  --primary-gold-light: #D4B87E;
  --bg-warm-white: #FDFBF7;
  --bg-cream: #FAF8F5;
  --text-primary: #333333;
  --text-secondary: #666666;
  --white: #FFFFFF;
  --border-color: #E0E0E0;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 30px rgba(0,0,0,0.12);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Montserrat', 'Microsoft YaHei', sans-serif;
  color: var(--text-primary);
  background-color: var(--bg-warm-white);
  line-height: 1.6;
  overflow-x: hidden;
}

.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-blue) 0%, #0f2238 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-content {
  text-align: center;
  color: var(--white);
}

.loader-logo {
  font-family: 'Playfair Display', serif;
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 24px;
  animation: pulse 1.5s ease-in-out infinite;
}

.loader-logo span {
  color: var(--primary-gold);
}

.loader-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid rgba(255,255,255,0.2);
  border-top-color: var(--primary-gold);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Playfair Display', serif;
  font-weight: 600;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  transition: all 0.3s ease;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-blue);
  text-decoration: none;
}

.logo span {
  color: var(--primary-gold);
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary-gold);
}

.lang-switch {
  display: flex;
  gap: 8px;
  margin-left: 16px;
}

.lang-btn {
  padding: 6px 12px;
  border: 1px solid var(--border-color);
  background: transparent;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.3s ease;
}

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--primary-blue);
}

/* Hero Section */
.hero {
  height: 100vh;
  min-height: 600px;
  background: linear-gradient(135deg, var(--primary-blue) 0%, #0f2238 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('https://images.unsplash.com/photo-1515562141207-7a88fb7ce338?w=1920&h=1080&fit=crop') center/cover;
  opacity: 0.15;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--white);
  max-width: 800px;
  padding: 40px;
}

.hero-subtitle {
  font-size: 14px;
  letter-spacing: 3px;
  color: var(--primary-gold);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.hero-title {
  font-size: 56px;
  margin-bottom: 24px;
  line-height: 1.2;
}

.hero-desc {
  font-size: 18px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 40px;
}

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

.btn {
  padding: 14px 32px;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  position: relative;
  overflow: hidden;
  z-index: 1;
  transform: translateZ(0);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  transition: all 0.4s ease;
}

.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn:active::after {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-gold) 0%, var(--primary-gold-light) 50%, var(--primary-gold) 100%);
  background-size: 200% 200%;
  color: var(--primary-blue);
  border: 2px solid var(--primary-gold);
  box-shadow: 0 4px 15px rgba(200,169,110,0.4);
  animation: gradientShift 3s ease infinite;
}

.btn-primary::before {
  background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.3) 50%, transparent 100%);
  transform: translateX(-100%);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-gold-light) 0%, var(--primary-gold) 50%, var(--primary-gold-light) 100%);
  color: var(--primary-blue);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(200,169,110,0.6), 0 0 40px rgba(200,169,110,0.3);
}

.btn-primary:hover::before {
  transform: translateX(100%);
}

.btn-primary:active {
  transform: translateY(-1px) scale(0.98);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
  position: relative;
}

.btn-outline::before {
  background: var(--white);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  z-index: -1;
}

.btn-outline:hover {
  color: var(--primary-blue);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(255,255,255,0.3), 0 0 40px rgba(255,255,255,0.2);
}

.btn-outline:hover::before {
  transform: scaleX(1);
  transform-origin: left;
}

.btn-outline:active {
  transform: translateY(-1px) scale(0.98);
}

.btn-glow {
  animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
  from {
    box-shadow: 0 0 5px var(--primary-gold), 0 0 10px var(--primary-gold), 0 0 15px var(--primary-gold);
  }
  to {
    box-shadow: 0 0 10px var(--primary-gold), 0 0 20px var(--primary-gold), 0 0 30px var(--primary-gold);
  }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.btn-shine {
  position: relative;
  overflow: hidden;
}

.btn-shine::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: shine 3s infinite;
}

@keyframes shine {
  0% { left: -100%; }
  50%, 100% { left: 100%; }
}

.btn-pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(200,169,110,0.7);
  }
  70% {
    box-shadow: 0 0 0 15px rgba(200,169,110,0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(200,169,110,0);
  }
}

.btn-float {
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

.btn-border-animate {
  position: relative;
  overflow: visible;
}

.btn-border-animate::before,
.btn-border-animate::after {
  content: '';
  position: absolute;
  width: 0;
  height: 0;
  border: 2px solid transparent;
  transition: all 0.5s ease;
  z-index: 1;
}

.btn-border-animate::before {
  top: 0;
  left: 0;
  border-top-color: var(--primary-gold);
  border-right-color: var(--primary-gold);
}

.btn-border-animate::after {
  bottom: 0;
  right: 0;
  border-bottom-color: var(--primary-gold);
  border-left-color: var(--primary-gold);
}

.btn-border-animate:hover::before,
.btn-border-animate:hover::after {
  width: 100%;
  height: 100%;
}

.btn-magnetic {
  transition: transform 0.3s ease;
}

.btn-3d {
  transform-style: preserve-3d;
  perspective: 1000px;
}

.btn-3d:hover {
  transform: rotateX(10deg) rotateY(-10deg) translateY(-5px);
}

.btn-neon {
  position: relative;
  overflow: visible;
  border: 2px solid var(--primary-gold);
  animation: neonPulse 1.5s ease-in-out infinite alternate;
}

.btn-neon::before {
  content: '';
  position: absolute;
  top: -5px;
  left: -5px;
  right: -5px;
  bottom: -5px;
  background: transparent;
  border: 2px solid var(--primary-gold);
  border-radius: 8px;
  opacity: 0;
  transition: all 0.3s ease;
}

.btn-neon:hover::before {
  opacity: 1;
  animation: neonBorder 1s ease-in-out infinite;
}

@keyframes neonPulse {
  from {
    text-shadow: 0 0 5px var(--primary-gold), 0 0 10px var(--primary-gold);
    box-shadow: 0 0 5px var(--primary-gold), inset 0 0 5px var(--primary-gold);
  }
  to {
    text-shadow: 0 0 10px var(--primary-gold), 0 0 20px var(--primary-gold), 0 0 30px var(--primary-gold);
    box-shadow: 0 0 10px var(--primary-gold), 0 0 20px var(--primary-gold), inset 0 0 10px var(--primary-gold);
  }
}

@keyframes neonBorder {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.5;
  }
}

.btn-liquid {
  position: relative;
  overflow: hidden;
}

.btn-liquid::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
  transform: translate(-50%, -50%) scale(0);
  transition: transform 0.5s ease;
}

.btn-liquid:hover::before {
  transform: translate(-50%, -50%) scale(1);
}

.btn-particles {
  position: relative;
  overflow: visible;
}

.btn-particles .particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--primary-gold);
  border-radius: 50%;
  opacity: 0;
  pointer-events: none;
}

.btn-particles:hover .particle {
  animation: particleFloat 1s ease-out forwards;
}

@keyframes particleFloat {
  0% {
    opacity: 1;
    transform: translate(0, 0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate(var(--tx), var(--ty)) scale(0);
  }
}

/* Section Common Styles */
section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-label {
  font-size: 14px;
  letter-spacing: 2px;
  color: var(--primary-gold);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: 40px;
  color: var(--primary-blue);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Values Section */
.values {
  background: var(--white);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.value-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--bg-cream);
  border-radius: 8px;
  transition: all 0.3s ease;
}

.value-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.value-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-gold));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 28px;
  color: var(--white);
}

.value-title {
  font-size: 22px;
  color: var(--primary-blue);
  margin-bottom: 12px;
}

.value-desc {
  font-size: 15px;
  color: var(--text-secondary);
}

/* Categories Section */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.category-card {
  position: relative;
  height: 280px;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
}

.category-card:hover {
  transform: scale(1.02);
}

.category-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.category-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
  background: linear-gradient(to top, rgba(27,58,92,0.95), transparent);
  color: var(--white);
}

.category-name {
  font-size: 24px;
  margin-bottom: 4px;
}

.category-link {
  font-size: 14px;
  color: var(--primary-gold);
  text-decoration: none;
}

/* Process Section */
.process {
  background: var(--primary-blue);
  color: var(--white);
}

.process .section-title {
  color: var(--white);
}

.process .section-desc {
  color: rgba(255,255,255,0.8);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.process-step {
  text-align: center;
  padding: 32px 20px;
  background: rgba(255,255,255,0.08);
  border-radius: 8px;
  position: relative;
}

.step-number {
  width: 48px;
  height: 48px;
  background: var(--primary-gold);
  color: var(--primary-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  margin: 0 auto 20px;
}

.step-title {
  font-size: 18px;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
}

/* Testimonials Section */
.testimonials {
  background: var(--bg-cream);
}

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

.testimonial-card {
  background: var(--white);
  padding: 32px;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.testimonial-quote {
  font-size: 48px;
  color: var(--primary-gold);
  line-height: 1;
  margin-bottom: 8px;
}

.testimonial-text {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-gold));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 18px;
}

.testimonial-info h4 {
  font-size: 15px;
  color: var(--primary-blue);
}

.testimonial-info p {
  font-size: 13px;
  color: var(--text-secondary);
}

/* Page Hero */
.page-hero {
  padding: 160px 0 80px;
  background: linear-gradient(135deg, var(--primary-blue) 0%, #0f2238 100%);
  color: var(--white);
  text-align: center;
}

.page-hero h1 {
  font-size: 48px;
  margin-bottom: 12px;
}

.page-hero p {
  font-size: 18px;
  color: rgba(255,255,255,0.8);
}

/* About Sections */
.story-section {
  background: var(--white);
}

.story-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.story-text h2 {
  font-size: 32px;
  color: var(--primary-blue);
  margin-bottom: 20px;
}

.story-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.story-image {
  height: 400px;
  border-radius: 8px;
  overflow: hidden;
}

.story-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.timeline-section {
  background: var(--bg-cream);
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: var(--border-color);
}

.timeline-item {
  display: flex;
  justify-content: flex-end;
  padding-right: 50%;
  margin-bottom: 40px;
  position: relative;
}

.timeline-item:nth-child(even) {
  justify-content: flex-start;
  padding-right: 0;
  padding-left: 50%;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  background: var(--primary-gold);
  border-radius: 50%;
  border: 4px solid var(--white);
  box-shadow: var(--shadow);
}

.timeline-content {
  background: var(--white);
  padding: 24px;
  border-radius: 8px;
  box-shadow: var(--shadow);
  margin-right: 30px;
  max-width: 350px;
}

.timeline-item:nth-child(even) .timeline-content {
  margin-right: 0;
  margin-left: 30px;
}

.timeline-year {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-gold);
  margin-bottom: 8px;
}

.timeline-title {
  font-size: 18px;
  color: var(--primary-blue);
  margin-bottom: 8px;
}

.timeline-desc {
  font-size: 14px;
  color: var(--text-secondary);
}

.capabilities-section {
  background: var(--white);
}

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

.capability-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--bg-cream);
  border-radius: 8px;
}

.capability-num {
  font-size: 48px;
  font-weight: 700;
  color: var(--primary-gold);
  margin-bottom: 8px;
}

.capability-label {
  font-size: 18px;
  color: var(--primary-blue);
  margin-bottom: 8px;
}

.capability-desc {
  font-size: 14px;
  color: var(--text-secondary);
}

/* Products Section */
.products-section {
  background: var(--white);
  padding-top: 40px;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 40px;
  padding: 24px;
  background: var(--bg-cream);
  border-radius: 8px;
}

.filter-group {
  display: flex;
  gap: 8px;
  align-items: center;
}

.filter-label {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 600;
}

.filter-btn {
  padding: 8px 16px;
  border: 1px solid var(--border-color);
  background: var(--white);
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.3s ease;
}

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

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  cursor: pointer;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.product-image {
  height: 220px;
  overflow: hidden;
  position: relative;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.product-card:hover .product-image img {
  transform: scale(1.05);
}

.product-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--primary-gold);
  color: var(--primary-blue);
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}

.product-info {
  padding: 20px;
}

.product-name {
  font-size: 16px;
  color: var(--primary-blue);
  margin-bottom: 8px;
}

.product-material {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.btn-inquiry {
  width: 100%;
  padding: 10px;
  background: var(--primary-blue);
  color: var(--white);
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s ease;
}

.btn-inquiry:hover {
  background: var(--primary-gold);
  color: var(--primary-blue);
}

/* Custom Service Section */
.custom-section {
  background: var(--white);
}

.custom-process {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

.process-item {
  text-align: center;
  padding: 24px 12px;
  background: var(--bg-cream);
  border-radius: 8px;
  position: relative;
}

.process-item::after {
  content: '→';
  position: absolute;
  right: -12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary-gold);
  font-size: 20px;
}

.process-item:last-child::after {
  display: none;
}

.process-item-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.process-item-title {
  font-size: 14px;
  color: var(--primary-blue);
  font-weight: 600;
}

.capabilities-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.capability-item {
  padding: 32px;
  background: var(--bg-cream);
  border-radius: 8px;
  text-align: center;
}

.capability-item i {
  font-size: 48px;
  color: var(--primary-gold);
  margin-bottom: 16px;
}

.capability-item h3 {
  font-size: 20px;
  color: var(--primary-blue);
  margin-bottom: 8px;
}

.capability-item p {
  font-size: 14px;
  color: var(--text-secondary);
}

/* Contact Section */
.contact-section {
  background: var(--white);
  padding-top: 40px;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info-card {
  padding: 40px;
  background: var(--bg-cream);
  border-radius: 8px;
}

.contact-info-card h2 {
  font-size: 28px;
  color: var(--primary-blue);
  margin-bottom: 24px;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-blue);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-details h4 {
  font-size: 16px;
  color: var(--primary-blue);
  margin-bottom: 4px;
}

.contact-details p,
.contact-details a {
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
}

.contact-details a:hover {
  color: var(--primary-gold);
}

.form-card {
  padding: 40px;
  background: var(--white);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.form-card h2 {
  font-size: 28px;
  color: var(--primary-blue);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 15px;
  font-family: inherit;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-gold);
}

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

.btn-submit {
  width: 100%;
  padding: 14px 24px;
  background: var(--primary-blue);
  color: var(--white);
  border: none;
  border-radius: 4px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s ease;
}

.btn-submit:hover {
  background: var(--primary-gold);
  color: var(--primary-blue);
}

/* Footer */
.footer {
  background: var(--primary-blue);
  color: var(--white);
  padding: 64px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand h3 {
  font-size: 28px;
  margin-bottom: 16px;
}

.footer-brand h3 span {
  color: var(--primary-gold);
}

.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  text-decoration: none;
  transition: all 0.3s ease;
}

.footer-social a:hover {
  background: var(--primary-gold);
  color: var(--primary-blue);
}

.footer-col h4 {
  font-size: 18px;
  margin-bottom: 20px;
  color: var(--primary-gold);
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
}

.footer-bottom p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}

/* Responsive */
@media (max-width: 1199px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 991px) {
  .values-grid,
  .categories-grid,
  .testimonials-grid,
  .capabilities-grid,
  .capabilities-list,
  .contact-wrapper {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .custom-process {
    grid-template-columns: repeat(3, 1fr);
  }
  .process-item::after {
    display: none;
  }
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .story-content {
    grid-template-columns: 1fr;
  }
  .timeline::before {
    left: 30px;
  }
  .timeline-item,
  .timeline-item:nth-child(even) {
    padding-left: 70px;
    padding-right: 0;
    justify-content: flex-start;
  }
  .timeline-dot {
    left: 30px;
  }
  .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    margin-left: 0;
    margin-right: 0;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  }
  .nav-links.active {
    display: flex;
  }
  .mobile-menu-btn {
    display: block;
  }
  .hero-title {
    font-size: 36px;
  }
  .section-title {
    font-size: 32px;
  }
  .values-grid,
  .categories-grid,
  .testimonials-grid,
  .capabilities-grid,
  .capabilities-list,
  .contact-wrapper,
  .process-grid,
  .products-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .custom-process {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-btns {
    flex-direction: column;
    align-items: center;
  }
  .btn {
    width: 100%;
    max-width: 280px;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.6s ease forwards;
}

.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.scroll-animate.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-gold));
  color: var(--white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-hover);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.product-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.product-modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--white);
  border-radius: 12px;
  max-width: 900px;
  width: 90%;
  max-height: 90vh;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.product-modal.active .modal-content {
  transform: scale(1);
}

.modal-image {
  height: 500px;
  background: var(--bg-cream);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.modal-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-info {
  padding: 40px;
  overflow-y: auto;
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 48px;
  height: 48px;
  background: var(--white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow);
}

.modal-close:hover {
  background: var(--primary-gold);
  color: var(--primary-blue);
  transform: rotate(90deg);
}

.modal-tag {
  display: inline-block;
  background: var(--primary-gold);
  color: var(--primary-blue);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}

.modal-title {
  font-size: 28px;
  color: var(--primary-blue);
  margin-bottom: 12px;
}

.modal-material {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.modal-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.modal-features {
  margin-bottom: 32px;
}

.modal-features h4 {
  font-size: 16px;
  color: var(--primary-blue);
  margin-bottom: 12px;
}

.modal-features ul {
  list-style: none;
}

.modal-features ul li {
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
  font-size: 14px;
  color: var(--text-secondary);
}

.modal-features ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-gold);
  font-weight: 700;
}

.btn-modal-inquiry {
  width: 100%;
  padding: 16px 32px;
  background: var(--primary-blue);
  color: var(--white);
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn-modal-inquiry:hover {
  background: var(--primary-gold);
  color: var(--primary-blue);
}

.btn-modal-inquiry::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn-modal-inquiry:active::after {
  width: 300px;
  height: 300px;
}

.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--primary-gold);
  border-radius: 50%;
  opacity: 0.3;
  animation: float 15s infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 0.3;
  }
  90% {
    opacity: 0.3;
  }
  100% {
    transform: translateY(-100vh) rotate(720deg);
    opacity: 0;
  }
}

.navbar.scrolled {
  background: rgba(255,255,255,0.98);
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.navbar.scrolled .logo {
  font-size: 22px;
}

.btn-ripple {
  position: relative;
  overflow: hidden;
}

.btn-ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255,255,255,0.4);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn-ripple:active::after {
  width: 300px;
  height: 300px;
}

.value-card {
  position: relative;
  overflow: hidden;
}

.value-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(200,169,110,0.1), transparent);
  transition: left 0.5s ease;
}

.value-card:hover::before {
  left: 100%;
}

.category-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, transparent 0%, rgba(27,58,92,0.3) 100%);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.category-card:hover::after {
  opacity: 1;
}

.testimonial-card {
  position: relative;
  transition: all var(--transition-normal);
}

.testimonial-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.testimonial-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: linear-gradient(to bottom, var(--primary-gold), var(--primary-blue));
  transition: height var(--transition-normal);
}

.testimonial-card:hover::before {
  height: 100%;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-gold);
  box-shadow: 0 0 0 3px rgba(200,169,110,0.1);
}

.btn-submit {
  position: relative;
  overflow: hidden;
}

.btn-submit::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-submit:hover::before {
  left: 100%;
}

.lazy-image {
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.lazy-image.loaded {
  opacity: 1;
}

.image-placeholder {
  background: linear-gradient(90deg, var(--bg-cream) 25%, var(--bg-warm-white) 50%, var(--bg-cream) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@media (max-width: 767px) {
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
  }
  
  .modal-content {
    grid-template-columns: 1fr;
    max-height: 95vh;
  }
  
  .modal-image {
    height: 300px;
  }
  
  .modal-info {
    padding: 24px;
  }
}