@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

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

:root {
  --color-bg: #FFFFFF;
  --color-bg-secondary: #F8F8F8;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-accent: #0A2463;
  --color-border: #E0E0E0;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html {
  scroll-behavior: smooth;
}

.nav-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.nav-link {
  position: relative;
  letter-spacing: 2px;
  transition: var(--transition-smooth);
}

.nav-link:hover {
  color: var(--color-accent);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-accent);
}

.hero-section {
  height: 100vh;
  position: relative;
  overflow: hidden;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 8s ease-out;
}

.hero-image:hover {
  transform: scale(1.05);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.1), rgba(0,0,0,0.3));
}

.hero-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: white;
  z-index: 10;
}

.brand-statement {
  font-size: 48px;
  font-weight: 300;
  letter-spacing: 4px;
  margin-bottom: 24px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.brand-subtitle {
  font-size: 18px;
  font-weight: 300;
  letter-spacing: 2px;
  opacity: 0.95;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2px;
}

.feature-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/4;
  cursor: pointer;
}

.feature-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.feature-item:hover img {
  transform: scale(1.05);
}

.feature-item::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0);
  transition: var(--transition-smooth);
}

.feature-item:hover::after {
  background: rgba(0, 0, 0, 0.2);
}

.collection-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.collection-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/4;
}

.collection-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.collection-item:hover img {
  transform: scale(1.08);
}

.collection-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px;
  background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
  color: white;
  font-size: 14px;
  letter-spacing: 2px;
  opacity: 0;
  transition: var(--transition-smooth);
}

.collection-item:hover .collection-label {
  opacity: 1;
}

.focal-image {
  width: 100%;
  height: 60vh;
  object-fit: cover;
}

.carousel-container {
  position: relative;
  height: 100vh;
  overflow: hidden;
}

.carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.carousel-slide.active {
  opacity: 1;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.carousel-indicators {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 10;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.carousel-dot.active {
  background: white;
  width: 24px;
  border-radius: 4px;
}

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

.detail-text h3 {
  font-size: 24px;
  font-weight: 400;
  letter-spacing: 2px;
  margin-bottom: 20px;
}

.detail-text p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-light);
  letter-spacing: 1px;
}

.detail-image {
  width: 100%;
  height: 500px;
  object-fit: cover;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.comparison-item {
  position: relative;
  overflow: hidden;
}

.comparison-item img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.comparison-item:hover img {
  transform: scale(1.05);
}

.footer {
  text-align: center;
  padding: 40px 20px;
  color: var(--color-text-light);
  font-size: 14px;
  letter-spacing: 2px;
  border-top: 1px solid var(--color-border);
}

.divider {
  height: 1px;
  background: var(--color-border);
  margin: 80px 0;
}

@media (max-width: 1024px) {
  .collection-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .detail-section {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .brand-statement {
    font-size: 36px;
  }
}

@media (max-width: 768px) {
  .collection-grid {
    grid-template-columns: 1fr;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .comparison-grid {
    grid-template-columns: 1fr;
  }
  
  .brand-statement {
    font-size: 28px;
    letter-spacing: 2px;
  }
  
  .brand-subtitle {
    font-size: 16px;
  }
  
  .nav-bar {
    padding: 12px 20px;
  }
}

.fade-in {
  animation: fadeIn 1s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-up {
  animation: slideUp 0.8s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}