/* 全局样式 - 极简服装展示网站 */

/* CSS变量定义 */
:root {
  /* 主色调 */
  --primary-black: #000000;
  --primary-white: #ffffff;
  --primary-gray: #f5f5f5;
  --medium-gray: #999999;
  --dark-gray: #333333;
  
  /* 点缀色 */
  --accent-blue: #2c3e50;
  --accent-pink: #a8a2a2;
  
  /* 字体 */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  
  /* 间距 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  
  /* 边框 */
  --border-radius: 4px;
  --transition: all 0.3s ease;
}

/* 基础重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

/* 导航栏样式 */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: var(--primary-white);
  border-bottom: 1px solid var(--primary-gray);
  z-index: 1000;
  padding: var(--spacing-sm) 0;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 3px;
  color: var(--primary-black);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.nav-link {
  color: var(--dark-gray);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 1px;
  transition: var(--transition);
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--accent-blue);
  transition: var(--transition);
}

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

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--primary-black);
  margin: 5px 0;
  transition: var(--transition);
}

/* 主容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
  padding-top: 80px;
  min-height: calc(100vh - 160px);
}

/* 主视觉区域 */
.hero {
  width: 100%;
  height: 70vh;
  position: relative;
  overflow: hidden;
  margin-bottom: var(--spacing-xl);
}

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

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

.hero-title {
  color: var(--primary-white);
  font-size: 3rem;
  font-weight: 200;
  letter-spacing: 5px;
  text-align: center;
}

/* 精选系列 */
.featured {
  margin-bottom: var(--spacing-xl);
}

.section-title {
  font-size: 2rem;
  font-weight: 300;
  text-align: center;
  margin-bottom: var(--spacing-lg);
  letter-spacing: 2px;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.featured-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
}

.featured-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.featured-image {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: var(--transition);
}

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

.featured-caption {
  text-align: center;
  padding: var(--spacing-sm);
  font-size: 0.9rem;
  color: var(--dark-gray);
  letter-spacing: 1px;
}

/* 系列页面网格 */
.collection-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
}

.collection-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  aspect-ratio: 3/4;
}

.collection-item:hover {
  transform: scale(1.02);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
  z-index: 10;
}

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

.collection-item:hover .collection-image {
  transform: scale(1.08);
  filter: brightness(0.95);
}

/* 风格页面布局 */
.style-section {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-xl);
  gap: var(--spacing-lg);
}

.style-section:nth-child(even) {
  flex-direction: row-reverse;
}

.style-image {
  flex: 1;
  width: 100%;
  height: 500px;
  object-fit: cover;
}

.style-content {
  flex: 1;
  padding: var(--spacing-md);
}

.style-title {
  font-size: 2rem;
  font-weight: 300;
  margin-bottom: var(--spacing-sm);
  color: var(--accent-blue);
  letter-spacing: 2px;
}

.style-description {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--dark-gray);
}

/* 故事页面 */
.story-content {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-lg);
  text-align: center;
}

.story-paragraph {
  font-size: 1.1rem;
  line-height: 2;
  margin-bottom: var(--spacing-md);
  color: var(--dark-gray);
}

/* 页脚 */
.footer {
  text-align: center;
  padding: var(--spacing-lg);
  background-color: var(--primary-gray);
  color: var(--medium-gray);
  font-size: 0.9rem;
  letter-spacing: 1px;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 60px;
    right: -100%;
    width: 100%;
    height: calc(100vh - 60px);
    background-color: var(--primary-white);
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-lg);
    transition: var(--transition);
  }

  .nav-links.active {
    right: 0;
  }

  .hero-title {
    font-size: 2rem;
  }

  .style-section {
    flex-direction: column;
  }

  .style-section:nth-child(even) {
    flex-direction: column;
  }

  .style-image {
    height: 300px;
  }

  .featured-grid {
    grid-template-columns: 1fr;
  }

  .collection-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-xs);
    padding-top: 60px;
  }

  .hero {
    height: 50vh;
  }

  .hero-title {
    font-size: 1.5rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .style-title {
    font-size: 1.5rem;
  }

  .collection-grid {
    gap: var(--spacing-xs);
  }
}

/* 动画效果 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.8s ease-out;
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--primary-gray);
}

::-webkit-scrollbar-thumb {
  background: var(--medium-gray);
  border-radius: var(--border-radius);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--dark-gray);
}