/* =============================================
   全局样式文件 - 时尚视觉画廊
   包含响应式布局、动画效果和主题配色
   ============================================= */

/* 基础变量定义 */
:root {
  --color-bg-dark: #1a1a1a;
  --color-bg-light: #ffffff;
  --color-text-dark: #e0e0e0;
  --color-text-light: #333333;
  --color-accent: #666666;
  --color-overlay: rgba(0, 0, 0, 0.6);
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --transition-fast: 0.3s ease;
  --transition-smooth: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* 全局重置与基础样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg-dark);
  color: var(--color-text-dark);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

body.light-theme {
  background-color: var(--color-bg-light);
  color: var(--color-text-light);
}

/* 导航栏样式 */
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(26, 26, 26, 0.9);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: var(--spacing-sm) var(--spacing-md);
  transition: background var(--transition-fast);
}

body.light-theme .main-nav {
  background: rgba(255, 255, 255, 0.9);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #666 0%, #999 100%);
  border-radius: 50%;
}

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

.nav-links a {
  color: var(--color-text-dark);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 1px;
  transition: opacity var(--transition-fast);
  position: relative;
}

body.light-theme .nav-links a {
  color: var(--color-text-light);
}

.nav-links a:hover {
  opacity: 0.6;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
}

/* 主题切换按钮 */
.theme-toggle {
  background: none;
  border: 1px solid var(--color-accent);
  color: var(--color-text-dark);
  padding: 0.5rem 1rem;
  cursor: pointer;
  border-radius: 20px;
  font-size: 0.85rem;
  transition: all var(--transition-fast);
}

body.light-theme .theme-toggle {
  color: var(--color-text-light);
}

.theme-toggle:hover {
  background: var(--color-accent);
  color: var(--color-bg-light);
}

/* 全屏幻灯片容器 */
.hero-slider {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  margin-top: 60px;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.slide.active {
  opacity: 1;
}

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

.slide-caption {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-bg-light);
  font-size: 1.8rem;
  font-weight: 300;
  letter-spacing: 2px;
  text-align: center;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

/* 幻灯片控制点 */
.slider-dots {
  position: absolute;
  bottom: var(--spacing-md);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--spacing-sm);
  z-index: 10;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dot.active {
  background: var(--color-bg-light);
  width: 30px;
  border-radius: 5px;
}

/* 通用容器 */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

/* 精选系列模块 */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
}

.grid-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/4;
  cursor: pointer;
  border-radius: 4px;
}

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

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

.grid-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-overlay);
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--transition-fast);
}

.grid-item:hover .grid-overlay {
  opacity: 1;
}

.grid-title {
  color: var(--color-bg-light);
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 2px;
}

/* 横向滚动细节区 */
.detail-scroll {
  overflow-x: auto;
  overflow-y: hidden;
  white-space: nowrap;
  padding: var(--spacing-md) 0;
  margin: var(--spacing-xl) 0;
  scrollbar-width: none;
}

.detail-scroll::-webkit-scrollbar {
  display: none;
}

.detail-scroll-inner {
  display: inline-flex;
  gap: var(--spacing-md);
}

.detail-item {
  display: inline-block;
  width: 400px;
  height: 300px;
  border-radius: 4px;
  overflow: hidden;
}

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

/* 文字陈述区 */
.text-section {
  max-width: 800px;
  margin: var(--spacing-xl) auto;
  text-align: center;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 300;
  letter-spacing: 3px;
  margin-bottom: var(--spacing-md);
}

.section-content {
  font-size: 1.1rem;
  line-height: 2;
  opacity: 0.9;
  font-weight: 300;
}

/* 设计理念页面样式 */
.philosophy-module {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
  margin: var(--spacing-xl) 0;
}

.philosophy-image {
  width: 100%;
  height: 600px;
  border-radius: 4px;
  overflow: hidden;
}

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

.philosophy-text {
  padding: var(--spacing-md);
}

.philosophy-item {
  margin-bottom: var(--spacing-lg);
}

.philosophy-item h3 {
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 2px;
  margin-bottom: var(--spacing-sm);
}

.philosophy-item p {
  font-size: 1rem;
  line-height: 1.8;
  opacity: 0.9;
}

/* 时间轴样式 */
.timeline {
  position: relative;
  margin: var(--spacing-xl) 0;
  padding: var(--spacing-md) 0;
}

.timeline-item {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  align-items: center;
}

.timeline-image {
  width: 200px;
  height: 200px;
  border-radius: 4px;
  overflow: hidden;
  flex-shrink: 0;
}

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

.timeline-content h4 {
  font-size: 1.3rem;
  font-weight: 300;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-xs);
}

/* 风格档案页面样式 */
.style-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
}

.style-card {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  cursor: pointer;
  border-radius: 4px;
}

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

.style-card:hover img {
  transform: scale(1.1);
}

.style-card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--transition-fast);
}

.style-card:hover .style-card-overlay {
  opacity: 0.9;
}

.style-card-title {
  color: var(--color-bg-light);
  font-size: 2rem;
  font-weight: 300;
  letter-spacing: 3px;
}

/* 页脚样式 */
.main-footer {
  text-align: center;
  padding: var(--spacing-md);
  font-size: 0.85rem;
  opacity: 0.5;
  margin-top: var(--spacing-xl);
}

/* 响应式设计 - 平板 */
@media (max-width: 768px) {
  .nav-links {
    gap: var(--spacing-md);
  }

  .slide-caption {
    font-size: 1.2rem;
    bottom: var(--spacing-md);
  }

  .featured-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }

  .philosophy-module {
    grid-template-columns: 1fr;
  }

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

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

  .detail-item {
    width: 300px;
    height: 225px;
  }
}

/* 响应式设计 - 移动端 */
@media (max-width: 480px) {
  .container {
    padding: var(--spacing-md) var(--spacing-sm);
  }

  .nav-links {
    display: none;
  }

  .nav-container {
    justify-content: space-between;
  }

  .featured-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

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

  .section-content {
    font-size: 1rem;
  }

  .detail-item {
    width: 250px;
    height: 188px;
  }

  .timeline-item {
    flex-direction: column;
  }

  .timeline-image {
    width: 100%;
  }
}

/* 懒加载动画 */
.lazy-load {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-smooth), transform var(--transition-smooth);
}

.lazy-load.loaded {
  opacity: 1;
  transform: translateY(0);
}

/* 页面过渡动画 */
.page-transition {
  animation: fadeIn var(--transition-smooth);
}

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

/* 自定义滚动条 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-dark);
}

body.light-theme ::-webkit-scrollbar-track {
  background: var(--color-bg-light);
}

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

::-webkit-scrollbar-thumb:hover {
  background: #888;
}