/* 瑜伽社区 - 全局样式 */
:root {
  --accent-color: #e91e63;
  --accent-light: #f8bbd9;
  --accent-dark: #c2185b;
  --text-primary: #333;
  --text-secondary: #666;
  --text-muted: #999;
  --bg-primary: #fff;
  --bg-secondary: #f5f5f5;
  --bg-dark: #2c3e50;
  --border-color: #e0e0e0;
  --shadow: 0 2px 8px rgba(0,0,0,0.1);
  --shadow-hover: 0 4px 16px rgba(0,0,0,0.15);
  --radius: 8px;
  --radius-lg: 12px;
  --max-width: 1200px;
  --header-height: 64px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* 容器 */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}

.btn-primary {
  background: var(--accent-color);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-dark);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--accent-color);
  color: var(--accent-color);
}

.btn-outline:hover {
  background: var(--accent-color);
  color: #fff;
}

/* 头部导航 */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-primary);
  box-shadow: var(--shadow);
  height: var(--header-height);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent-color);
}

.logo span {
  color: var(--text-primary);
}

.nav {
  display: flex;
  gap: 32px;
}

.nav a {
  font-size: 15px;
  color: var(--text-secondary);
  transition: color 0.3s;
}

.nav a:hover,
.nav a.active {
  color: var(--accent-color);
}

.search-box {
  position: relative;
}

.search-box input {
  width: 240px;
  padding: 10px 16px 10px 40px;
  border: 1px solid var(--border-color);
  border-radius: 24px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.3s;
}

.search-box input:focus {
  border-color: var(--accent-color);
}

.search-box::before {
  content: "🔍";
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
}

.mobile-menu-btn {
  display: none;
  font-size: 24px;
  background: none;
  border: none;
  cursor: pointer;
}

/* Hero 区域 */
.hero {
  background: linear-gradient(135deg, var(--accent-light) 0%, var(--bg-primary) 100%);
  padding: 80px 0;
  text-align: center;
}

.hero h1 {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.hero p {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
}

.hero-search {
  max-width: 560px;
  margin: 0 auto;
}

.hero-search input {
  width: 100%;
  padding: 16px 24px;
  border: 2px solid var(--border-color);
  border-radius: 32px;
  font-size: 16px;
  outline: none;
  transition: border-color 0.3s;
}

.hero-search input:focus {
  border-color: var(--accent-color);
}

/* 分类标签 */
.categories {
  padding: 48px 0;
  background: var(--bg-secondary);
}

.section-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
  text-align: center;
}

.category-list {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.category-tag {
  padding: 12px 24px;
  background: var(--bg-primary);
  border-radius: 24px;
  font-size: 14px;
  color: var(--text-secondary);
  transition: all 0.3s;
  box-shadow: var(--shadow);
}

.category-tag:hover {
  background: var(--accent-color);
  color: #fff;
  transform: translateY(-2px);
}

/* 活动卡片 */
.events-section {
  padding: 64px 0;
}

.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 24px;
}

.event-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow 0.3s, transform 0.3s;
}

.event-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.event-image {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, var(--accent-light), var(--accent-color));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 48px;
}

.event-content {
  padding: 20px;
}

.event-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.event-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.event-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.event-meta-item::before {
  font-size: 16px;
}

.event-date::before { content: "📅"; }
.event-location::before { content: "📍"; }
.event-price::before { content: "💰"; }

/* 文章列表 */
.articles-section {
  padding: 64px 0;
  background: var(--bg-secondary);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.article-column h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent-color);
  display: inline-block;
}

.article-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.article-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  background: var(--bg-primary);
  border-radius: var(--radius);
  transition: box-shadow 0.3s;
}

.article-item:hover {
  box-shadow: var(--shadow);
}

.article-thumb {
  width: 80px;
  height: 60px;
  background: var(--accent-light);
  border-radius: var(--radius);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.article-info h4 {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 4px;
  line-height: 1.4;
}

.article-info time {
  font-size: 12px;
  color: var(--text-muted);
}

/* 面包屑 */
.breadcrumb {
  padding: 16px 0;
  background: var(--bg-secondary);
}

.breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.breadcrumb a {
  color: var(--text-secondary);
}

.breadcrumb a:hover {
  color: var(--accent-color);
}

.breadcrumb li:not(:last-child)::after {
  content: ">";
  margin-left: 8px;
  color: var(--text-muted);
}

.breadcrumb li:last-child {
  color: var(--text-primary);
  font-weight: 500;
}

/* 分类页头部 */
.category-header {
  padding: 48px 0;
  text-align: center;
  background: linear-gradient(135deg, var(--accent-light) 0%, var(--bg-primary) 100%);
}

.category-header h1 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 8px;
}

.category-header p {
  color: var(--text-secondary);
}

/* 筛选器 */
.filter-bar {
  padding: 20px 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 32px;
}

.filter-options {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.filter-btn {
  padding: 8px 20px;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  background: var(--bg-primary);
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.3s;
}

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

/* 活动列表（列表视图） */
.events-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 48px;
}

.event-list-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: box-shadow 0.3s;
}

.event-list-item:hover {
  box-shadow: var(--shadow-hover);
}

.event-date-box {
  text-align: center;
  min-width: 80px;
  padding: 16px;
  background: var(--accent-light);
  border-radius: var(--radius);
}

.event-date-box .day {
  font-size: 32px;
  font-weight: 700;
  color: var(--accent-color);
  line-height: 1;
}

.event-date-box .month {
  font-size: 14px;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.event-list-content {
  flex: 1;
}

.event-list-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.event-list-meta {
  display: flex;
  gap: 24px;
  font-size: 14px;
  color: var(--text-secondary);
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 48px 0;
}

.pagination a,
.pagination span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  font-size: 14px;
  transition: all 0.3s;
}

.pagination a {
  background: var(--bg-primary);
  color: var(--text-secondary);
}

.pagination a:hover {
  background: var(--accent-color);
  color: #fff;
}

.pagination .current {
  background: var(--accent-color);
  color: #fff;
}

/* 文章详情页 */
.article-header {
  padding: 48px 0 32px;
  text-align: center;
}

.article-header h1 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 16px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.article-meta-bar {
  display: flex;
  justify-content: center;
  gap: 24px;
  font-size: 14px;
  color: var(--text-secondary);
}

.article-hero-image {
  width: 100%;
  max-width: 900px;
  height: 400px;
  margin: 0 auto 48px;
  background: linear-gradient(135deg, var(--accent-light), var(--accent-color));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 64px;
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
  padding-bottom: 64px;
}

.article-content h2 {
  font-size: 24px;
  font-weight: 600;
  margin: 32px 0 16px;
}

.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 24px 0 12px;
}

.article-content p {
  margin-bottom: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.article-content ul {
  margin-bottom: 16px;
  padding-left: 24px;
}

.article-content li {
  list-style: disc;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

/* 讲师/嘉宾 */
.speakers {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin: 24px 0;
}

.speaker {
  text-align: center;
}

.speaker-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin-bottom: 8px;
}

.speaker-name {
  font-size: 14px;
  font-weight: 500;
}

/* 404 页面 */
.error-page {
  min-height: calc(100vh - var(--header-height) - 300px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 64px 20px;
}

.error-code {
  font-size: 120px;
  font-weight: 700;
  color: var(--accent-color);
  line-height: 1;
  margin-bottom: 16px;
}

.error-title {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 16px;
}

.error-message {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

/* 页脚 */
.footer {
  background: var(--bg-dark);
  color: #fff;
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  line-height: 1.6;
}

.footer-column h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-column a {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  transition: color 0.3s;
}

.footer-column a:hover {
  color: var(--accent-color);
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  color: rgba(255,255,255,0.5);
  font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 992px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav,
  .search-box {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero p {
    font-size: 16px;
  }

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

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

  .event-list-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .event-list-meta {
    flex-direction: column;
    gap: 8px;
  }

  .article-hero-image {
    height: 240px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .filter-options {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 48px 0;
  }

  .category-list {
    gap: 8px;
  }

  .category-tag {
    padding: 8px 16px;
    font-size: 13px;
  }

  .events-section,
  .articles-section {
    padding: 40px 0;
  }
}