/* 全局样式 - 极简主义设计 */
:root {
  --color-primary: #f5f5f0;
  --color-secondary: #e8e8e3;
  --color-accent: #d4c5b9;
  --color-text: #333;
  --color-text-light: #666;
  --color-border: #eee;
  --color-overlay: rgba(0, 0, 0, 0.7);
  --font-primary: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(245, 245, 240, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--color-text);
  text-decoration: none;
}

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

.nav-links a {
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  transition: var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: #8b7f75;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 1px;
  background: #8b7f75;
}

/* 主容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-sm);
}

/* 轮播图 */
.hero-carousel {
  position: relative;
  height: 70vh;
  min-height: 500px;
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
}

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

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

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

.carousel-caption {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: white;
  z-index: 10;
}

.carousel-caption h2 {
  font-size: 2.5rem;
  font-weight: 300;
  margin-bottom: var(--spacing-xs);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.carousel-indicators {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
}

.indicator {
  width: 40px;
  height: 2px;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--transition);
}

.indicator.active {
  background: white;
}

/* 精选卡片 */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.featured-card {
  background: white;
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}

.featured-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.featured-card img {
  width: 100%;
  height: 350px;
  object-fit: cover;
}

.featured-card-content {
  padding: var(--spacing-sm);
}

.featured-card-content h3 {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

/* 分类筛选 */
.filter-container {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1.5rem;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 25px;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.9rem;
  color: var(--color-text);
}

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

/* 瀑布流 */
.gallery-masonry {
  column-count: 4;
  column-gap: var(--spacing-sm);
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: var(--spacing-sm);
  cursor: pointer;
  transition: var(--transition);
}

.gallery-item:hover {
  transform: scale(0.98);
}

.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
}

/* 文章列表 */
.article-list {
  display: grid;
  gap: var(--spacing-lg);
}

.article-card {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-md);
  background: white;
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}

.article-card:hover {
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

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

.article-content {
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.article-content h2 {
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.article-content p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* 文章详情 */
.article-detail {
  max-width: 800px;
  margin: 0 auto;
}

.article-detail h1 {
  font-size: 2.5rem;
  font-weight: 300;
  text-align: center;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

.article-detail-image {
  width: 100%;
  height: 500px;
  object-fit: cover;
  margin: var(--spacing-md) 0;
  border-radius: 4px;
}

.article-detail p {
  font-size: 1.1rem;
  line-height: 2;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
  text-align: justify;
}

/* 模态框 */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-overlay);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  max-width: 90%;
  max-height: 90%;
  position: relative;
}

.modal-content img {
  width: 100%;
  height: auto;
  display: block;
}

.modal-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  color: white;
  padding: var(--spacing-md);
  font-size: 0.9rem;
}

.modal-close {
  position: absolute;
  top: -40px;
  right: 0;
  color: white;
  font-size: 2rem;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 关于页面 */
.about-content {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.about-image {
  width: 100%;
  height: 400px;
  object-fit: cover;
  margin-bottom: var(--spacing-lg);
  border-radius: 4px;
}

.about-content h1 {
  font-size: 2rem;
  font-weight: 300;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

.about-content p {
  font-size: 1.1rem;
  line-height: 2;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

/* 页脚 */
footer {
  text-align: center;
  padding: var(--spacing-md) 0;
  color: var(--color-text-light);
  font-size: 0.9rem;
  margin-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-links {
    gap: var(--spacing-sm);
  }
  
  .nav-links a {
    font-size: 0.8rem;
  }
  
  .carousel-caption h2 {
    font-size: 1.8rem;
  }
  
  .featured-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
  }
  
  .gallery-masonry {
    column-count: 2;
  }
  
  .article-card {
    grid-template-columns: 1fr;
  }
  
  .article-detail h1 {
    font-size: 1.8rem;
  }
  
  .article-detail-image {
    height: 300px;
  }
}

@media (max-width: 480px) {
  .gallery-masonry {
    column-count: 1;
  }
  
  .filter-container {
    gap: var(--spacing-xs);
  }
  
  .filter-btn {
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
  }
}

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

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

/* 隐藏类 */
.hidden {
  display: none !important;
}