/* 全局样式文件 - 时尚服装展示网站 */

/* CSS变量定义 - 设计令牌 */
:root {
  --color-primary: #2a2a2a;
  --color-secondary: #666666;
  --color-accent: #8b7355;
  --color-bg: #fafafa;
  --color-white: #ffffff;
  --color-light-gray: #f5f5f5;
  --color-border: #e0e0e0;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-size-base: 16px;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 3rem;
  
  --border-radius: 2px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* 重置默认样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

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

/* 导航栏样式 */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(250, 250, 250, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-sm) var(--spacing-md);
}

nav ul {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
  max-width: 1400px;
  margin: 0 auto;
}

nav a {
  text-decoration: none;
  color: var(--color-primary);
  font-size: var(--font-size-lg);
  font-weight: 400;
  letter-spacing: 0.5px;
  transition: var(--transition);
  position: relative;
}

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

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

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

/* 主容器 */
main {
  margin-top: 60px;
  min-height: calc(100vh - 120px);
}

/* 页面容器 */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
}

/* 全屏轮播区 */
.hero-slider {
  width: 100%;
  height: 90vh;
  position: relative;
  overflow: hidden;
}

.hero-slide {
  width: 100%;
  height: 100%;
  position: relative;
  display: none;
}

.hero-slide.active {
  display: block;
  animation: fadeIn 1s ease-in-out;
}

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

.hero-caption {
  position: absolute;
  bottom: var(--spacing-xl);
  left: var(--spacing-xl);
  color: var(--color-white);
  font-size: var(--font-size-3xl);
  font-weight: 300;
  letter-spacing: 2px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* 标题样式 */
.section-title {
  font-size: var(--font-size-2xl);
  font-weight: 300;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-lg);
  text-align: center;
  color: var(--color-primary);
}

/* 网格布局 */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.grid-6 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
}

/* 图片卡片 */
.image-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  background-color: var(--color-white);
  cursor: pointer;
  transition: var(--transition);
}

.image-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
  display: block;
}

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

.image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
  color: var(--color-white);
  padding: var(--spacing-md);
  transform: translateY(100%);
  transition: var(--transition);
}

.image-card:hover .image-overlay {
  transform: translateY(0);
}

.image-overlay h3 {
  font-size: var(--font-size-lg);
  font-weight: 400;
  margin-bottom: var(--spacing-xs);
}

.image-overlay p {
  font-size: 0.875rem;
  opacity: 0.9;
}

/* 编辑推荐区 */
.editorial-section {
  margin: var(--spacing-xl) 0;
}

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

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

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

.editorial-image {
  width: 100%;
  height: 600px;
  overflow: hidden;
  border-radius: var(--border-radius);
}

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

.editorial-item:hover .editorial-image img {
  transform: scale(1.03);
}

.editorial-content {
  padding: var(--spacing-md);
}

.editorial-content h3 {
  font-size: var(--font-size-xl);
  font-weight: 400;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.editorial-content p {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  color: var(--color-secondary);
  letter-spacing: 0.5px;
}

/* 快速导航卡片 */
.nav-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
}

.nav-card {
  position: relative;
  height: 400px;
  overflow: hidden;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
}

.nav-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.nav-card:hover img {
  transform: scale(1.08);
}

.nav-card-content {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.3);
  transition: var(--transition);
}

.nav-card:hover .nav-card-content {
  background: rgba(0, 0, 0, 0.5);
}

.nav-card h3 {
  color: var(--color-white);
  font-size: var(--font-size-2xl);
  font-weight: 300;
  letter-spacing: 2px;
}

/* 分类导航 */
.category-nav {
  position: sticky;
  top: 60px;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
  z-index: 100;
  margin-bottom: var(--spacing-lg);
}

.category-nav ul {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  list-style: none;
}

.category-nav a {
  text-decoration: none;
  color: var(--color-secondary);
  font-size: var(--font-size-lg);
  transition: var(--transition);
}

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

/* 服装系列展示 */
.series-section {
  margin: var(--spacing-xl) 0;
  padding: var(--spacing-lg) 0;
}

.series-title {
  font-size: var(--font-size-2xl);
  font-weight: 300;
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.series-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-lg);
  font-style: italic;
}

/* 细节画廊 */
.detail-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-sm);
  margin: var(--spacing-lg) 0;
}

.detail-item {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: var(--border-radius);
}

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

.detail-item:hover img {
  transform: scale(1.1);
}

.detail-label {
  position: absolute;
  bottom: var(--spacing-sm);
  left: var(--spacing-sm);
  background-color: rgba(255, 255, 255, 0.95);
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.875rem;
  border-radius: var(--border-radius);
}

/* 风格主题卡片 */
.style-themes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.theme-card {
  position: relative;
  height: 500px;
  overflow: hidden;
  border-radius: var(--border-radius);
  cursor: pointer;
}

.theme-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.theme-card:hover img {
  transform: scale(1.05);
}

.theme-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-md);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  color: var(--color-white);
}

.theme-info h3 {
  font-size: var(--font-size-xl);
  font-weight: 400;
  margin-bottom: var(--spacing-xs);
}

.theme-keywords {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
  margin-top: var(--spacing-sm);
}

.keyword {
  padding: 4px 12px;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  font-size: 0.875rem;
}

/* 页脚 */
footer {
  text-align: center;
  padding: var(--spacing-md);
  color: var(--color-secondary);
  font-size: 0.875rem;
  border-top: 1px solid var(--color-border);
  margin-top: var(--spacing-xl);
}

/* 动画效果 */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

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

.slide-up {
  animation: slideUp 0.6s ease-out;
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-6 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .editorial-item {
    grid-template-columns: 1fr;
  }
  
  .editorial-item:nth-child(even) {
    direction: ltr;
  }
  
  .detail-gallery {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
  }
  
  nav ul {
    gap: var(--spacing-md);
  }
  
  nav a {
    font-size: 1rem;
  }
  
  .hero-slider {
    height: 60vh;
  }
  
  .hero-caption {
    font-size: var(--font-size-xl);
    bottom: var(--spacing-md);
    left: var(--spacing-md);
  }
  
  .section-title {
    font-size: var(--font-size-xl);
  }
  
  .grid-2,
  .grid-3,
  .grid-6,
  .nav-cards,
  .style-themes {
    grid-template-columns: 1fr;
  }
  
  .detail-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .editorial-image {
    height: 400px;
  }
  
  .nav-card,
  .theme-card {
    height: 300px;
  }
  
  .category-nav ul {
    gap: var(--spacing-sm);
    overflow-x: auto;
    justify-content: flex-start;
    padding: 0 var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  .hero-caption {
    font-size: var(--font-size-lg);
  }
  
  .detail-gallery {
    grid-template-columns: 1fr;
  }
  
  .editorial-content h3 {
    font-size: var(--font-size-lg);
  }
  
  .editorial-content p {
    font-size: 1rem;
  }
}