/* 全局配置 - 防止样式冲突 */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg-primary: #F8F9FA;
  --color-bg-secondary: #F5F5F0;
  --color-bg-tertiary: #E9ECEF;
  --color-accent-light: #E6DFD8;
  --color-accent-stone: #D8D5CC;
  --color-text-primary: #212529;
  --color-text-secondary: #495057;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: 'Noto Sans SC', Arial, sans-serif;
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* 导航栏样式 */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(248, 249, 250, 0.95);
  backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
}

.navbar-scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

/* 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 1s ease-in-out;
}

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

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

.carousel-caption {
  position: absolute;
  bottom: 15%;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: white;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
  z-index: 2;
}

/* 图片悬停效果 */
.image-hover-effect {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

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

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

.image-hover-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0);
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
}

.image-hover-effect:hover .image-hover-overlay {
  background: rgba(0, 0, 0, 0.3);
  opacity: 1;
}

/* 网格布局 */
.grid-masonry {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

/* 页脚样式 */
footer {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
  padding: 2rem 0;
  text-align: center;
  font-size: 0.875rem;
  margin-top: 4rem;
}

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

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

/* 懒加载占位 */
.lazy-load {
  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; }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .carousel-caption {
    bottom: 10%;
  }
  
  .grid-masonry {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

@media (max-width: 640px) {
  .carousel-container {
    height: 70vh;
  }
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 8px;
}

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

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

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-secondary);
}

/* 按钮样式 */
.btn-minimal {
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--color-text-primary);
  background: transparent;
  color: var(--color-text-primary);
  cursor: pointer;
  transition: var(--transition-smooth);
  font-size: 0.875rem;
  letter-spacing: 0.05em;
}

.btn-minimal:hover {
  background: var(--color-text-primary);
  color: white;
}

/* 筛选导航 */
.filter-nav {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 2rem 0;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  background: var(--color-bg-tertiary);
  border: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  font-size: 0.875rem;
}

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

/* 视差效果辅助类 */
.parallax {
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}