:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a25;
  --bg-glass: rgba(26, 26, 37, 0.8);
  --text-primary: #ffffff;
  --text-secondary: #a0a0b0;
  --text-muted: #6b6b7b;
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-purple: #8b5cf6;
  --accent-green: #10b981;
  --accent-orange: #f59e0b;
  --accent-red: #ef4444;
  --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  --gradient-cyan: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(59, 130, 246, 0.15);
  --border-radius: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

/* 顶部导航 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 0 24px;
}

.navbar-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  -webkit-text-fill-color: white;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 1px;
}

.nav-date {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 8px 16px;
  background: var(--bg-card);
  border-radius: 20px;
}

/* 主内容区 */
.main-content {
  padding-top: 64px;
}

/* 首屏焦点区 */
.hero-section {
  padding: 48px 24px;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.hero-inner {
  max-width: 1400px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 20px;
  color: var(--accent-red);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--accent-red);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #fff 0%, #a0a0b0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 32px;
}

.hero-stats {
  display: flex;
  gap: 48px;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-green);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* 内容网格 */
.content-section {
  padding: 48px 24px;
}

.content-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 32px;
}

/* 分类标题 */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 700;
}

.section-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.icon-stock { background: rgba(16, 185, 129, 0.15); }
.icon-tech { background: rgba(59, 130, 246, 0.15); }
.icon-macro { background: rgba(139, 92, 246, 0.15); }
.icon-energy { background: rgba(245, 158, 11, 0.15); }

.view-all {
  color: var(--accent-blue);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

.view-all:hover {
  gap: 8px;
}

/* 卡片网格 */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}

.news-card {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.news-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  border-color: rgba(59, 130, 246, 0.3);
}

.news-card:hover::before {
  opacity: 1;
}

.card-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.tag-stock { background: rgba(16, 185, 129, 0.15); color: var(--accent-green); }
.tag-tech { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }
.tag-macro { background: rgba(139, 92, 246, 0.15); color: var(--accent-purple); }
.tag-energy { background: rgba(245, 158, 11, 0.15); color: var(--accent-orange); }
.tag-hot { background: rgba(239, 68, 68, 0.15); color: var(--accent-red); }

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.4;
}

.card-summary {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.6;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.card-time {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 焦点新闻卡片 */
.featured-card {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
  border: 1px solid rgba(59, 130, 246, 0.2);
  grid-column: span 2;
}

.featured-card .card-title {
  font-size: 1.4rem;
}

.featured-card .card-summary {
  font-size: 1rem;
  line-height: 1.7;
}

/* 侧边栏 */
.sidebar {
  position: sticky;
  top: 88px;
  height: fit-content;
}

.sidebar-section {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  padding: 24px;
  margin-bottom: 24px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.sidebar-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 事件日历 */
.event-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.event-item {
  display: flex;
  gap: 16px;
  padding: 16px;
  background: var(--bg-secondary);
  border-radius: 12px;
  transition: var(--transition);
}

.event-item:hover {
  background: rgba(59, 130, 246, 0.1);
}

.event-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 50px;
  padding: 8px;
  background: var(--gradient-primary);
  border-radius: 10px;
  font-weight: 700;
}

.event-day {
  font-size: 1.25rem;
}

.event-month {
  font-size: 0.7rem;
  text-transform: uppercase;
}

.event-content h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.event-content p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* 标签云 */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-item {
  padding: 6px 14px;
  background: var(--bg-secondary);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: var(--transition);
  cursor: pointer;
}

.tag-item:hover {
  background: var(--gradient-primary);
  color: white;
}

/* 底部 */
.footer {
  background: var(--bg-secondary);
  padding: 48px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  margin-top: 48px;
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.25rem;
}

.footer-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

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

.footer-copy {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* 响应式 */
@media (max-width: 1024px) {
  .content-inner {
    grid-template-columns: 1fr;
  }
  
  .sidebar {
    position: relative;
    top: 0;
  }
  
  .featured-card {
    grid-column: span 1;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .news-grid {
    grid-template-columns: 1fr;
  }
  
  .nav-links {
    display: none;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }
  
  .footer-inner {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }
  
  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

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

.news-card {
  animation: fadeInUp 0.5s ease-out forwards;
}

.news-card:nth-child(1) { animation-delay: 0.1s; }
.news-card:nth-child(2) { animation-delay: 0.2s; }
.news-card:nth-child(3) { animation-delay: 0.3s; }
.news-card:nth-child(4) { animation-delay: 0.4s; }
.news-card:nth-child(5) { animation-delay: 0.5s; }
.news-card:nth-child(6) { animation-delay: 0.6s; }

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

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

::-webkit-scrollbar-thumb {
  background: var(--bg-card);
  border-radius: 4px;
}

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