/* 全局样式定义 */
:root {
  --primary-color: #fefefe;
  --text-color: #333333;
  --border-color: #e0e0e0;
  --accent-color: #8d7b68;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --border-radius: 0.25rem;
  --transition: all 0.3s ease;
}

/* 字体设置 */
body {
  font-family: 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--text-color);
  background-color: var(--primary-color);
  line-height: 1.6;
}

/* 导航栏样式 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(254, 254, 254, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  z-index: 1000;
  padding: var(--spacing-sm) 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--spacing-md);
}

.logo {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--text-color);
  text-decoration: none;
  letter-spacing: 0.2em;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-color);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  transition: var(--transition);
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--accent-color);
  transition: width 0.3s ease;
}

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

/* 主内容区域 */
.main-content {
  margin-top: 80px;
  min-height: calc(100vh - 160px);
}

/* 主视觉大图样式 */
.hero-image {
  width: 100%;
  height: 70vh;
  object-fit: cover;
  display: block;
}

/* 引言区域 */
.introduction {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  max-width: 800px;
  margin: 0 auto;
}

.introduction h1 {
  font-size: 2.5rem;
  font-weight: 300;
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.1em;
  color: var(--text-color);
}

.introduction p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #666;
  font-weight: 300;
}

/* 精选展示区 */
.featured-section {
  padding: var(--spacing-xl) var(--spacing-md);
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.featured-item {
  text-align: center;
  transition: var(--transition);
}

.featured-item:hover {
  transform: translateY(-5px);
}

.featured-item img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-sm);
}

.featured-item h3 {
  font-size: 1.2rem;
  font-weight: 400;
  margin-bottom: var(--spacing-xs);
  color: var(--text-color);
}

.featured-item p {
  font-size: 0.95rem;
  color: #666;
  line-height: 1.6;
}

/* 系列页面样式 */
.page-title {
  text-align: center;
  font-size: 2rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  margin: var(--spacing-xl) 0 var(--spacing-lg);
  color: var(--text-color);
}

.filter-tags {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.filter-tag {
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  color: var(--text-color);
  cursor: default;
  transition: var(--transition);
}

.filter-tag:hover {
  background-color: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
}

.collections-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.collection-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.collection-item img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: var(--transition);
}

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

.collection-name {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: white;
  padding: var(--spacing-md);
  font-size: 0.95rem;
  text-align: center;
}

/* 工艺页面样式 */
.craftsmanship-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.craft-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.craft-column {
  text-align: center;
  padding: var(--spacing-md);
}

.craft-column img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-sm);
}

.craft-column h3 {
  font-size: 1.3rem;
  font-weight: 400;
  margin-bottom: var(--spacing-sm);
  color: var(--text-color);
  letter-spacing: 0.1em;
}

.craft-column p {
  color: #666;
  line-height: 1.8;
  font-size: 0.95rem;
}

.full-width-banner {
  width: 100%;
  height: 400px;
  position: relative;
  overflow: hidden;
}

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

.banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
}

.banner-text {
  color: white;
  font-size: 2rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  text-align: center;
  padding: 0 var(--spacing-md);
}

/* 穿搭指南样式 */
.styling-grid {
  display: grid;
  gap: var(--spacing-xl);
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.styling-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.styling-item img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  border-radius: var(--border-radius);
}

.styling-content h3 {
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: var(--spacing-sm);
  color: var(--text-color);
  letter-spacing: 0.1em;
}

.styling-content p {
  color: #666;
  line-height: 1.8;
  font-size: 0.95rem;
}

/* 页脚样式 */
footer {
  text-align: center;
  padding: var(--spacing-lg) 0;
  background-color: var(--primary-color);
  border-top: 1px solid var(--border-color);
  margin-top: var(--spacing-xl);
}

footer p {
  color: #999;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-links {
    gap: var(--spacing-md);
    font-size: 0.85rem;
  }
  
  .introduction h1 {
    font-size: 2rem;
  }
  
  .featured-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
  }
  
  .collections-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
  
  .craft-columns {
    grid-template-columns: 1fr;
  }
  
  .styling-item {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .banner-text {
    font-size: 1.5rem;
  }
  
  .page-title {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .nav-container {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .main-content {
    margin-top: 120px;
  }
  
  .hero-image {
    height: 50vh;
  }
  
  .introduction {
    padding: var(--spacing-lg) var(--spacing-sm);
  }
  
  .featured-section {
    padding: var(--spacing-lg) var(--spacing-sm);
  }
}