/* 葬AI Web4 — Global Styles */

:root {
  --bg-primary: #0f0f1a;
  --bg-secondary: #1a1a2e;
  --bg-card: #16213e;
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --text-muted: #888888;
  --accent: #e94560;
  --accent-hover: #ff6b81;
  --border: #2a2a4a;
  --font-mono: 'SF Mono', Monaco, Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

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

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand a {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

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

/* Hero */
.hero {
  padding: 6rem 2rem 4rem;
  text-align: center;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-bottom: 1px solid var(--border);
}

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

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--accent) 0%, #ff6b81 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.hero-desc {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem 2rem;
  min-width: 140px;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

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

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

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

/* Sections */
.section {
  padding: 4rem 2rem;
}

.section-alt {
  background: var(--bg-secondary);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.card-link {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
}

/* Article Cards */
.article-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  transition: border-color 0.2s;
}

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

.article-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}

.article-id {
  color: var(--accent);
  font-weight: 600;
  font-family: var(--font-mono);
}

.article-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.article-title a {
  color: var(--text-primary);
}

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

.article-excerpt {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.section-footer {
  text-align: center;
  margin-top: 2rem;
}

/* Page Header */
.page-header {
  padding: 3rem 2rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.page-header h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

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

/* Article Header Meta */
.article-header-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Article Layout */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 2rem;
  padding: 2rem 1rem;
}

@media (max-width: 768px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
}

.article-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  min-height: 400px;
}

.article-content h1,
.article-content h2,
.article-content h3 {
  margin-top: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.article-content h1 { font-size: 1.8rem; }
.article-content h2 { font-size: 1.5rem; }
.article-content h3 { font-size: 1.2rem; }

.article-content p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.article-content blockquote {
  border-left: 4px solid var(--accent);
  padding-left: 1rem;
  margin: 1rem 0;
  color: var(--text-secondary);
  font-style: italic;
}

.article-content pre {
  background: var(--bg-primary);
  padding: 1rem;
  border-radius: 6px;
  overflow-x: auto;
  margin: 1rem 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  border: 1px solid var(--border);
}

.article-content code {
  background: var(--bg-primary);
  padding: 0.2rem 0.4rem;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
}

.article-content ul, .article-content ol {
  margin: 1rem 0;
  padding-left: 2rem;
}

.article-content li {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.article-content strong {
  color: var(--text-primary);
}

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

.article-content a {
  color: var(--accent);
  text-decoration: underline;
}

/* Entities Sidebar */
.entities-sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  height: fit-content;
  position: sticky;
  top: 80px;
}

.entities-sidebar h4 {
  margin-top: 0;
  margin-bottom: 1rem;
  color: var(--accent);
  font-size: 1rem;
}

.entities-sidebar ul {
  list-style: none;
  padding: 0;
}

.entities-sidebar li {
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.entities-sidebar li:last-child {
  border-bottom: none;
}

.entity-type-product { color: #ff6b6b; }
.entity-type-person { color: #4ecdc4; }
.entity-type-company { color: #45b7d1; }
.entity-type-vc_firm { color: #f9ca24; }

/* Article Nav */
.article-nav {
  display: flex;
  justify-content: space-between;
  padding: 1.5rem 0;
  margin-bottom: 2rem;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Search Bar */
.search-bar {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.search-bar input,
.search-bar select {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.95rem;
  min-width: 200px;
}

.search-bar input:focus,
.search-bar select:focus {
  outline: none;
  border-color: var(--accent);
}

/* Footer */
.footer {
  margin-top: auto;
  padding: 2rem;
  text-align: center;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer p {
  margin: 0.25rem 0;
}

/* Responsive */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-stats {
    gap: 1rem;
  }

  .stat-card {
    padding: 1rem 1.5rem;
    min-width: 100px;
  }

  .stat-number {
    font-size: 2rem;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .page-header h1 {
    font-size: 2rem;
  }

  .article-layout {
    grid-template-columns: 1fr;
  }
}