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

:root {
  --color-bg: #F9F7F5;
  --color-text: #2C2C2C;
  --color-divider: #E8E4E0;
  --color-accent: #A8A29E;
  --color-warm: #7C6E65;
  --font-primary: "Source Han Sans CN", "Helvetica Neue", -apple-system, BlinkMacSystemFont, sans-serif;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(249, 247, 245, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--color-divider);
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 3rem;
}

nav a {
  text-decoration: none;
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  transition: var(--transition-smooth);
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  width: 0;
  height: 1px;
  background-color: var(--color-warm);
  transition: var(--transition-smooth);
  transform: translateX(-50%);
}

nav a:hover {
  color: var(--color-warm);
}

nav a:hover::after {
  width: 100%;
}

main {
  margin-top: 80px;
  min-height: calc(100vh - 160px);
}

footer {
  text-align: center;
  padding: 2rem;
  background-color: var(--color-divider);
  color: var(--color-accent);
  font-size: 0.875rem;
  letter-spacing: 0.1em;
}

.hero-carousel {
  width: 100%;
  height: 90vh;
  position: relative;
  overflow: hidden;
}

.carousel-slide {
  position: absolute;
  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;
  object-position: center;
}

.intro-section {
  max-width: 800px;
  margin: 4rem auto;
  padding: 2rem;
  text-align: center;
}

.intro-section p {
  font-size: 1.125rem;
  line-height: 2;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 0;
  max-width: 1400px;
  margin: 4rem auto;
}

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

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

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

.preview-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(44, 44, 44, 0.8), transparent);
  padding: 2rem;
  color: #fff;
  transform: translateY(100%);
  transition: var(--transition-smooth);
}

.preview-item:hover .preview-overlay {
  transform: translateY(0);
}

.preview-overlay h3 {
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 0.05em;
}

.collection-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  max-width: 1400px;
  margin: 3rem auto;
  padding: 2rem;
}

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

.collection-item img {
  width: 100%;
  height: auto;
  aspect-ratio: 3/4;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.collection-item:hover img {
  transform: scale(1.03);
  opacity: 0.9;
}

.collection-desc {
  margin-top: 1rem;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--color-accent);
  letter-spacing: 0.02em;
}

.category-title {
  text-align: center;
  font-size: 2rem;
  font-weight: 300;
  margin: 4rem 0 2rem;
  letter-spacing: 0.1em;
  color: var(--color-text);
}

.philosophy-section {
  max-width: 1200px;
  margin: 3rem auto;
  padding: 2rem;
}

.philosophy-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
  align-items: center;
}

.philosophy-block:nth-child(even) {
  direction: rtl;
}

.philosophy-block:nth-child(even) > * {
  direction: ltr;
}

.philosophy-text h2 {
  font-size: 2rem;
  font-weight: 300;
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}

.philosophy-text p {
  font-size: 1rem;
  line-height: 2;
  color: var(--color-accent);
  letter-spacing: 0.02em;
}

.philosophy-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.philosophy-image:hover img {
  transform: scale(1.02);
}

@media (max-width: 1024px) {
  nav ul {
    gap: 2rem;
  }
  
  .preview-grid {
    grid-template-columns: 1fr;
  }
  
  .collection-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
  }
  
  .philosophy-block {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .philosophy-block:nth-child(even) {
    direction: ltr;
  }
}

@media (max-width: 768px) {
  header {
    padding: 1rem;
  }
  
  nav ul {
    gap: 1.5rem;
  }
  
  nav a {
    font-size: 0.875rem;
  }
  
  .hero-carousel {
    height: 70vh;
  }
  
  .intro-section {
    padding: 1.5rem;
    margin: 2rem auto;
  }
  
  .intro-section p {
    font-size: 1rem;
  }
  
  .preview-grid {
    grid-template-columns: 1fr;
    margin: 2rem auto;
  }
  
  .collection-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 1rem;
  }
  
  .category-title {
    font-size: 1.5rem;
    margin: 2rem 0 1.5rem;
  }
  
  .philosophy-section {
    padding: 1rem;
  }
  
  .philosophy-text h2 {
    font-size: 1.5rem;
  }
  
  .philosophy-text p {
    font-size: 0.9375rem;
  }
}

@media (max-width: 480px) {
  nav ul {
    gap: 1rem;
  }
  
  .hero-carousel {
    height: 60vh;
  }
  
  .preview-grid {
    margin: 1rem auto;
  }
}