/* ========================================
   街舞文化 - 全局样式
   www.jiewuxue.cn
   ======================================== */

/* CSS 变量 */
:root {
  --accent-color: #e91e63;
  --accent-dark: #c2185b;
  --accent-light: #f48fb1;
  --bg-primary: #0a0a0a;
  --bg-secondary: #141414;
  --bg-card: #1a1a1a;
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --text-muted: #666666;
  --border-color: #2a2a2a;
  --success: #4caf50;
  --warning: #ff9800;
  --gradient-hero: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  --shadow-card: 0 4px 20px rgba(233, 30, 99, 0.15);
  --shadow-hover: 0 8px 30px rgba(233, 30, 99, 0.25);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition: all 0.3s ease;
}

/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

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

ul {
  list-style: none;
}

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

/* ========================================
   布局容器
   ======================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 60px 0;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 30px;
  text-align: center;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--accent-color);
  margin: 15px auto 0;
  border-radius: 2px;
}

/* ========================================
   Header 页头
   ======================================== */
.header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  font-weight: 800;
  color: var(--accent-color);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.nav {
  display: flex;
  gap: 30px;
}

.nav a {
  color: var(--text-secondary);
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

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

.nav a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: var(--transition);
}

.nav a:hover::after,
.nav a.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 15px;
}

.search-box {
  position: relative;
}

.search-box input {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 25px;
  padding: 10px 40px 10px 20px;
  color: var(--text-primary);
  width: 200px;
  transition: var(--transition);
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent-color);
  width: 250px;
}

.search-box button {
  position: absolute;
  right: 5px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 8px;
}

/* ========================================
   Hero 区域
   ======================================== */
.hero {
  background: var(--gradient-hero);
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23e91e63' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #fff 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 20px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
}

.hero-search {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

.hero-search input {
  width: 100%;
  padding: 20px 60px 20px 25px;
  border-radius: 50px;
  border: 2px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 16px;
  transition: var(--transition);
}

.hero-search input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 20px rgba(233, 30, 99, 0.3);
}

.hero-search button {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--accent-color);
  border: none;
  color: white;
  padding: 15px 30px;
  border-radius: 30px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.hero-search button:hover {
  background: var(--accent-dark);
}

/* ========================================
   分类标签
   ======================================== */
.categories {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
  margin-top: 40px;
}

.category-tag {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 12px 25px;
  border-radius: 30px;
  color: var(--text-primary);
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}

.category-tag:hover {
  background: var(--accent-color);
  border-color: var(--accent-color);
}

/* ========================================
   活动卡片
   ======================================== */
.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 30px;
}

.event-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.event-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent-color);
}

.event-image {
  height: 200px;
  background: var(--gradient-hero);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 60px;
}

.event-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  background: var(--accent-color);
  color: white;
  padding: 5px 15px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.event-content {
  padding: 25px;
}

.event-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 15px;
  line-height: 1.4;
}

.event-meta {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.event-meta-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 14px;
}

.event-meta-item .icon {
  color: var(--accent-color);
  width: 18px;
}

.event-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

.event-price {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-color);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 25px;
  border-radius: 25px;
  font-weight: 600;
  font-size: 14px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateX(5px);
}

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

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

.btn-large {
  padding: 18px 40px;
  font-size: 16px;
}

/* ========================================
   面包屑
   ======================================== */
.breadcrumb {
  background: var(--bg-secondary);
  padding: 20px 0;
  border-bottom: 1px solid var(--border-color);
}

.breadcrumb-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

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

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

.breadcrumb .current {
  color: var(--text-primary);
}

.breadcrumb-separator {
  color: var(--text-muted);
}

/* ========================================
   分类页头部
   ======================================== */
.category-header {
  background: var(--gradient-hero);
  padding: 60px 0;
  text-align: center;
}

.category-header h1 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 10px;
}

.category-header p {
  color: var(--text-secondary);
  font-size: 16px;
}

/* ========================================
   筛选器
   ======================================== */
.filter-bar {
  background: var(--bg-card);
  padding: 20px 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 40px;
}

.filter-inner {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 25px;
  border-radius: 25px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  font-size: 14px;
}

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

/* ========================================
   分页
   ======================================== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 50px;
}

.page-btn {
  width: 45px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

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

/* ========================================
   文章详情页
   ======================================== */
.article-header {
  background: var(--gradient-hero);
  padding: 60px 0;
}

.article-header-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.article-title {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.3;
}

.article-meta {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
  color: var(--text-secondary);
  font-size: 14px;
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.article-meta-item .icon {
  color: var(--accent-color);
}

.article-main {
  padding: 60px 0;
}

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

.article-image {
  width: 100%;
  height: 400px;
  background: var(--gradient-hero);
  border-radius: var(--radius-lg);
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 80px;
}

.article-body {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.article-body h2 {
  color: var(--text-primary);
  font-size: 24px;
  margin: 40px 0 20px;
}

.article-body h3 {
  color: var(--text-primary);
  font-size: 20px;
  margin: 30px 0 15px;
}

.article-body p {
  margin-bottom: 20px;
}

.article-body ul {
  margin-bottom: 20px;
  padding-left: 25px;
}

.article-body ul li {
  list-style: disc;
  margin-bottom: 10px;
}

.article-info-box {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 30px;
  margin: 40px 0;
  border: 1px solid var(--border-color);
}

.article-info-box h3 {
  color: var(--text-primary);
  margin-bottom: 20px;
  font-size: 18px;
}

.info-list {
  display: grid;
  gap: 15px;
}

.info-item {
  display: flex;
  gap: 15px;
}

.info-label {
  color: var(--text-muted);
  min-width: 100px;
}

.info-value {
  color: var(--text-primary);
  font-weight: 500;
}

.agenda-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.agenda-item {
  display: flex;
  gap: 20px;
  padding: 15px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
}

.agenda-time {
  color: var(--accent-color);
  font-weight: 600;
  min-width: 100px;
}

.agenda-content {
  color: var(--text-secondary);
}

.speakers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.speaker-item {
  text-align: center;
}

.speaker-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gradient-hero);
  margin: 0 auto 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
}

.speaker-name {
  font-size: 14px;
  color: var(--text-primary);
}

.article-cta {
  text-align: center;
  margin-top: 50px;
  padding: 40px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.article-cta p {
  color: var(--text-secondary);
  margin-bottom: 20px;
}

/* ========================================
   文章列表组件
   ======================================== */
.articles-section {
  background: var(--bg-secondary);
  padding: 60px 0;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.articles-column h3 {
  font-size: 18px;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 2px solid var(--accent-color);
}

.article-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.article-list-item {
  display: flex;
  gap: 15px;
  padding: 15px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  transition: var(--transition);
  border: 1px solid transparent;
}

.article-list-item:hover {
  border-color: var(--accent-color);
}

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

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

.article-list-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 5px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

/* ========================================
   推荐文章横向列表
   ======================================== */
.recommended-bar {
  background: var(--bg-card);
  padding: 30px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.recommended-title {
  font-size: 16px;
  margin-bottom: 15px;
  color: var(--text-secondary);
}

.recommended-list {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
}

.recommended-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  transition: var(--transition);
}

.recommended-item:hover {
  color: var(--accent-color);
}

.recommended-item::before {
  content: '•';
  color: var(--accent-color);
}

/* ========================================
   404 页面
   ======================================== */
.error-page {
  min-height: calc(100vh - 70px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
}

.error-content {
  max-width: 500px;
}

.error-code {
  font-size: 120px;
  font-weight: 800;
  color: var(--accent-color);
  line-height: 1;
  margin-bottom: 20px;
  opacity: 0.8;
}

.error-title {
  font-size: 32px;
  margin-bottom: 15px;
}

.error-desc {
  color: var(--text-secondary);
  margin-bottom: 30px;
}

.error-actions {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========================================
   Footer 页脚
   ======================================== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo {
  margin-bottom: 20px;
}

.footer-desc {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
}

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

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

.footer-links a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-copyright {
  color: var(--text-muted);
  font-size: 14px;
}

.footer-social {
  display: flex;
  gap: 15px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.footer-social a:hover {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: white;
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1024px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 15px 0;
  }

  .nav {
    order: 3;
    width: 100%;
    justify-content: center;
    margin-top: 15px;
    gap: 20px;
  }

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

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

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-brand .logo {
    justify-content: center;
  }

  .article-title {
    font-size: 24px;
  }

  .article-meta {
    gap: 15px;
  }

  .article-image {
    height: 250px;
  }

  .section {
    padding: 40px 0;
  }

  .section-title {
    font-size: 24px;
  }

  .search-box {
    display: none;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 60px 0;
  }

  .hero h1 {
    font-size: 28px;
  }

  .category-header h1 {
    font-size: 28px;
  }

  .filter-inner {
    gap: 10px;
  }

  .filter-btn {
    padding: 8px 15px;
    font-size: 13px;
  }

  .btn-large {
    padding: 15px 30px;
    font-size: 14px;
  }

  .error-code {
    font-size: 80px;
  }

  .error-title {
    font-size: 24px;
  }
}