/* 设计令牌 - CSS变量 */
:root {
  /* 色彩系统 */
  --color-ivory: #FFFFF0;
  --color-cream: #FFFDD0;
  --color-apricot: #FFDAB9;
  --color-light-gray: #F5F5F5;
  --color-medium-gray: #D3D3D3;
  --color-dark-gray: #696969;
  --color-charcoal: #36454F;
  --color-dusty-rose: #DCAE96;
  --color-fog-blue: #A8B5C8;
  --color-sage-green: #B2C8BA;
  
  /* 间距系统 */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  
  /* 字体系统 */
  --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;
  
  /* 动画时长 */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.4s ease;
  --transition-slow: 0.6s ease;
  
  /* 阴影 */
  --shadow-soft: 0 2px 10px rgba(0, 0, 0, 0.05);
  --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.1);
  --shadow-strong: 0 8px 30px rgba(0, 0, 0, 0.15);
}

/* 全局重置 - 仅覆盖必要的Water.css样式 */
* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-light);
  color: var(--color-charcoal);
  background-color: var(--color-ivory);
  line-height: 1.6;
}

/* 页面切换动画 */
.page-transition {
  animation: fadeIn var(--transition-medium) ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 导航栏样式 */
.nav-container {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-light-gray);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  transition: all var(--transition-fast);
}

.nav-menu {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--space-sm) 0;
  gap: var(--space-lg);
}

.nav-link {
  color: var(--color-charcoal);
  text-decoration: none;
  font-weight: var(--font-weight-regular);
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  transition: color var(--transition-fast);
  position: relative;
}

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

.nav-link:hover {
  color: var(--color-medium-gray);
}

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

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

/* 图片容器样式 */
.image-gallery {
  display: grid;
  gap: var(--space-md);
  padding: var(--space-md);
}

.image-card {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  background: var(--color-light-gray);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.image-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.image-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-medium), filter var(--transition-medium);
}

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

/* 轮播图样式 */
.carousel-container {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.carousel-slide {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.carousel-slide.active {
  opacity: 1;
}

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

/* 系列展示样式 */
.series-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-lg);
  padding: var(--space-lg);
  max-width: 1400px;
  margin: 0 auto;
}

.series-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: all var(--transition-medium);
  cursor: pointer;
}

.series-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-strong);
}

.series-card-image {
  width: 100%;
  height: 450px;
  overflow: hidden;
}

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

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

.series-card-content {
  padding: var(--space-md);
}

.series-title {
  font-size: 1.8rem;
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-xs);
  color: var(--color-charcoal);
  letter-spacing: 1px;
}

.series-description {
  font-size: 0.95rem;
  color: var(--color-dark-gray);
  line-height: 1.8;
  font-weight: var(--font-weight-light);
}

/* 风格分类样式 */
.style-tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.style-tab {
  padding: var(--space-xs) var(--space-md);
  background: transparent;
  border: 1px solid var(--color-medium-gray);
  border-radius: 25px;
  color: var(--color-charcoal);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-weight: var(--font-weight-regular);
}

.style-tab:hover,
.style-tab.active {
  background: var(--color-charcoal);
  color: white;
  border-color: var(--color-charcoal);
}

.style-content {
  display: none;
  animation: fadeIn var(--transition-medium) ease;
}

.style-content.active {
  display: block;
}

.style-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
  padding: var(--space-md);
  max-width: 1200px;
  margin: 0 auto;
}

/* 幕后页面样式 */
.story-container {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-lg);
}

.story-section {
  margin-bottom: var(--space-xl);
}

.story-title {
  font-size: 2.5rem;
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-md);
  color: var(--color-charcoal);
  letter-spacing: 2px;
  text-align: center;
}

.story-text {
  font-size: 1.1rem;
  line-height: 2;
  color: var(--color-dark-gray);
  margin-bottom: var(--space-md);
  text-align: justify;
  font-weight: var(--font-weight-light);
}

.story-image {
  width: 100%;
  height: 500px;
  overflow: hidden;
  border-radius: 12px;
  margin-bottom: var(--space-md);
  box-shadow: var(--shadow-soft);
}

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

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

/* 页脚样式 */
footer {
  text-align: center;
  padding: var(--space-md);
  color: var(--color-dark-gray);
  font-size: 0.85rem;
  background: var(--color-light-gray);
  margin-top: var(--space-xl);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-menu {
    gap: var(--space-md);
  }
  
  .nav-link {
    font-size: 0.85rem;
  }
  
  .series-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    padding: var(--space-sm);
  }
  
  .style-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-sm);
  }
  
  .story-container {
    padding: var(--space-md);
  }
  
  .story-title {
    font-size: 2rem;
  }
  
  .story-image {
    height: 300px;
  }
}

@media (max-width: 480px) {
  .nav-menu {
    flex-direction: column;
    gap: var(--space-xs);
    padding: var(--space-xs) 0;
  }
  
  .main-content {
    margin-top: 120px;
  }
  
  .series-card-image {
    height: 300px;
  }
  
  .style-tabs {
    gap: var(--space-sm);
  }
  
  .style-tab {
    font-size: 0.8rem;
    padding: var(--space-xs) var(--space-sm);
  }
}

/* 加载动画 */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-light-gray);
  border-radius: 50%;
  border-top-color: var(--color-charcoal);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

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

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

::-webkit-scrollbar-thumb {
  background: var(--color-medium-gray);
  border-radius: 4px;
}

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