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

:root {
  --bg-primary: #FFFFFF;
  --bg-secondary: #FAFAFA;
  --bg-tertiary: #F5F5F5;
  --text-primary: #333333;
  --text-secondary: #8C8C8C;
  --text-light: #BFBFBF;
  --text-footer: #999999;
  --transition-speed: 0.4s;
  --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.12);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  font-size: 16px;
}

.nav-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-light);
  z-index: 1000;
  padding: 1.2rem 0;
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  gap: 3rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 1rem;
  transition: color var(--transition-speed);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background-color: var(--text-primary);
  transition: width var(--transition-speed);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 2px;
  background-color: var(--text-primary);
  transition: var(--transition-speed);
}

main {
  margin-top: 80px;
}

.hero-section {
  position: relative;
  height: 90vh;
  overflow: hidden;
  background-color: var(--bg-secondary);
}

.slider {
  position: relative;
  height: 100%;
}

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

.slide.active {
  opacity: 1;
}

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

.slide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.5));
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide-text {
  color: #FFFFFF;
  font-size: 3rem;
  font-weight: 300;
  letter-spacing: 4px;
  text-align: center;
  animation: fadeInUp 1s ease-out;
}

.slider-controls {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 1rem;
  z-index: 10;
}

.slider-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: background-color var(--transition-speed);
}

.slider-dot.active {
  background-color: #FFFFFF;
}

.section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 6rem 2rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 400;
  letter-spacing: 3px;
  text-align: center;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 4rem;
}

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

.card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.card-image {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  transition: transform var(--transition-speed);
}

.card:hover .card-image {
  transform: scale(1.03);
}

.card-caption {
  text-align: center;
  margin-top: 1rem;
  font-size: 1rem;
  color: var(--text-secondary);
  letter-spacing: 1px;
}

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

.philosophy-image {
  width: 100%;
  height: 600px;
  object-fit: cover;
}

.philosophy-text {
  padding: 2rem;
}

.philosophy-text h3 {
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 2rem;
  letter-spacing: 2px;
}

.philosophy-text p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.series-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-bottom: 6rem;
}

.series-item:nth-child(even) {
  direction: rtl;
}

.series-item:nth-child(even) > * {
  direction: ltr;
}

.series-images {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.series-image {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  transition: transform var(--transition-speed);
}

.series-image:hover {
  transform: scale(1.03);
}

.series-content h3 {
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 1.5rem;
  letter-spacing: 2px;
}

.series-content p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

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

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

.craft-image {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: transform var(--transition-speed);
}

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

.craft-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  padding: 2rem;
  transform: translateY(100%);
  transition: transform var(--transition-speed);
}

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

.craft-title {
  font-size: 1.2rem;
  color: #FFFFFF;
  margin-bottom: 0.5rem;
  letter-spacing: 2px;
}

.craft-description {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
}

.cta-section {
  text-align: center;
  padding: 4rem 2rem;
  background-color: var(--bg-secondary);
}

.cta-text {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  letter-spacing: 2px;
}

.cta-button {
  display: inline-block;
  padding: 1rem 3rem;
  background-color: var(--text-primary);
  color: #FFFFFF;
  text-decoration: none;
  font-size: 1rem;
  letter-spacing: 2px;
  transition: background-color var(--transition-speed);
}

.cta-button:hover {
  background-color: var(--text-secondary);
}

footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-footer);
  font-size: 0.875rem;
  background-color: var(--bg-secondary);
}

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

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1199px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .philosophy-section,
  .series-item {
    grid-template-columns: 1fr;
  }
  
  .series-item:nth-child(even) {
    direction: ltr;
  }
}

@media (max-width: 767px) {
  .hamburger {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: rgba(255, 255, 255, 0.98);
    flex-direction: column;
    align-items: center;
    padding: 3rem 0;
    transition: left var(--transition-speed);
    gap: 2rem;
  }
  
  .nav-links.active {
    left: 0;
  }
  
  .slide-text {
    font-size: 2rem;
  }
  
  .section {
    padding: 4rem 1.5rem;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .series-images {
    grid-template-columns: 1fr;
  }
  
  .craft-grid {
    grid-template-columns: 1fr;
  }
  
  .philosophy-image {
    height: 400px;
  }
}