/* 全局配置 - 防止与Tailwind CSS冲突 */
:root {
  /* 配色方案 */
  --color-gray-light: #F8F9FA;
  --color-white: #FFFFFF;
  --color-black: #2C2C2C;
  --color-pink: #E8B4B8;
  --color-beige: #D4C5B2;
  --color-blue: #A3B5C7;
  --color-text-dark: #333333;
  --color-text-medium: #666666;
  
  /* 字体家族 */
  --font-title-en: 'Playfair Display', serif;
  --font-title-cn: 'Noto Serif SC', serif;
  --font-body: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* 间距 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* 过渡 */
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.2s ease;
}

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

body {
  font-family: var(--font-body);
  color: var(--color-text-dark);
  background-color: var(--color-gray-light);
  line-height: 1.6;
  overflow-x: hidden;
}

/* 导航栏样式 */
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(44, 44, 44, 0.1);
  transition: var(--transition-smooth);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-title-cn);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-black);
  text-decoration: none;
  letter-spacing: 2px;
  transition: var(--transition-fast);
}

.nav-menu {
  display: flex;
  gap: 3rem;
  list-style: none;
}

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

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-black);
  transition: var(--transition-smooth);
}

.nav-menu a:hover {
  color: var(--color-black);
}

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

/* 轮播图容器 */
.hero-slider {
  height: 100vh;
  position: relative;
  overflow: hidden;
  margin-top: 0;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.slide.active {
  opacity: 1;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.85);
}

.slide-caption {
  position: absolute;
  bottom: 15%;
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-white);
  font-family: var(--font-title-cn);
  font-size: 2.5rem;
  text-align: center;
  letter-spacing: 3px;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

/* 内容区域 */
.content-section {
  max-width: 1400px;
  margin: var(--spacing-xl) auto;
  padding: 0 2rem;
}

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

/* 网格布局 */
.collection-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2.5rem;
  margin-bottom: var(--spacing-xl);
}

.collection-item {
  background: var(--color-white);
  overflow: hidden;
  transition: var(--transition-smooth);
  cursor: pointer;
}

.collection-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.collection-item img {
  width: 100%;
  height: 450px;
  object-fit: cover;
  transition: var(--transition-smooth);
}

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

.collection-info {
  padding: 2rem;
  text-align: center;
}

.collection-info h3 {
  font-family: var(--font-title-cn);
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--color-black);
  letter-spacing: 1px;
}

.collection-info p {
  font-size: 0.9rem;
  color: var(--color-text-medium);
  line-height: 1.8;
}

/* 画廊筛选器 */
.filter-container {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.75rem 2rem;
  background: var(--color-white);
  border: 1px solid var(--color-text-medium);
  color: var(--color-text-medium);
  font-family: var(--font-body);
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition-fast);
  letter-spacing: 1px;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}

/* 瀑布流画廊 */
.gallery-masonry {
  column-count: 3;
  column-gap: 1.5rem;
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
  background: var(--color-white);
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  display: block;
  transition: var(--transition-smooth);
}

.gallery-item:hover img {
  transform: scale(1.05);
  filter: brightness(0.9);
}

.gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  padding: 2rem;
  transform: translateY(100%);
  transition: var(--transition-smooth);
}

.gallery-item:hover .gallery-overlay {
  transform: translateY(0);
}

.gallery-overlay p {
  color: var(--color-white);
  font-size: 0.85rem;
  line-height: 1.6;
}

/* 设计哲学页面 */
.philosophy-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-xl);
  padding: var(--spacing-lg) 2rem;
}

.philosophy-intro h2 {
  font-family: var(--font-title-cn);
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
  letter-spacing: 2px;
}

.philosophy-intro p {
  font-size: 1.1rem;
  line-height: 2;
  color: var(--color-text-medium);
  margin-bottom: 1rem;
}

.philosophy-section {
  display: flex;
  align-items: center;
  gap: 4rem;
  margin-bottom: var(--spacing-xl);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

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

.philosophy-text {
  flex: 1;
  padding: 2rem;
}

.philosophy-text h3 {
  font-family: var(--font-title-cn);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-black);
  letter-spacing: 1px;
}

.philosophy-text p {
  font-size: 1rem;
  line-height: 1.9;
  color: var(--color-text-medium);
}

.philosophy-image {
  flex: 1;
  overflow: hidden;
}

.philosophy-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  transition: var(--transition-smooth);
}

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

/* 页脚 */
footer {
  background: var(--color-white);
  border-top: 1px solid rgba(44, 44, 44, 0.1);
  padding: 3rem 0;
  margin-top: var(--spacing-xl);
}

.footer-content {
  text-align: center;
  color: var(--color-text-medium);
  font-size: 0.9rem;
  letter-spacing: 1px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .gallery-masonry {
    column-count: 2;
  }
  
  .philosophy-section {
    flex-direction: column !important;
    gap: 2rem;
  }
  
  .slide-caption {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    gap: 1.5rem;
  }
  
  .nav-menu a {
    font-size: 0.85rem;
  }
  
  .collection-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .gallery-masonry {
    column-count: 1;
  }
  
  .slide-caption {
    font-size: 1.5rem;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .philosophy-intro h2 {
    font-size: 1.5rem;
  }
  
  .philosophy-text h3 {
    font-size: 1.25rem;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 1rem;
  }
  
  .logo {
    font-size: 1.2rem;
  }
  
  .nav-menu {
    gap: 1rem;
  }
  
  .content-section {
    padding: 0 1rem;
  }
  
  .filter-container {
    gap: 0.75rem;
  }
  
  .filter-btn {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
  }
}

/* 加载动画 */
.fade-in {
  animation: fadeIn 0.6s ease-in;
}

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

/* 图片懒加载占位 */
.img-placeholder {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}