/* 杏吧官方 - xing-ba.lat */
:root {
  --bg-primary: #0d0b14;
  --bg-secondary: #161222;
  --bg-card: #1e1830;
  --accent-pink: #e84393;
  --accent-orange: #ff6b35;
  --accent-purple: #7c3aed;
  --text-primary: #f5f0ff;
  --text-secondary: #a89bb8;
  --border-color: #2d2540;
  --gradient-brand: linear-gradient(135deg, #7c3aed 0%, #e84393 50%, #ff6b35 100%);
  --shadow: 0 4px 24px rgba(124, 58, 237, 0.15);
  --radius: 12px;
  --max-width: 1200px;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

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: 1.75;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  background: rgba(13, 11, 20, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo-link { display: flex; align-items: center; gap: 10px; }
.logo-link img { width: 42px; height: 42px; border-radius: 10px; }
.logo-text {
  font-size: 1.35rem;
  font-weight: 700;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px 8px;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 8px;
}

.main-nav a {
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.95rem;
  transition: all 0.2s;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text-primary);
  background: rgba(124, 58, 237, 0.2);
}

/* Hero */
.hero {
  background: linear-gradient(180deg, #1a1230 0%, var(--bg-primary) 100%);
  padding: 60px 0 50px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  margin-bottom: 16px;
  line-height: 1.3;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 30px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 30px;
}

.badge {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.hero-img {
  max-width: 320px;
  margin: 0 auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
}

/* Sections */
.section { padding: 50px 0; }
.section-alt { background: var(--bg-secondary); }

.section-header { text-align: center; margin-bottom: 40px; }
.section-header h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  margin-bottom: 12px;
}
.section-header p { color: var(--text-secondary); max-width: 640px; margin: 0 auto; }

/* Content blocks */
.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.content-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

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

.content-card img { width: 100%; aspect-ratio: 9/16; object-fit: cover; max-height: 420px; }

.card-body { padding: 20px; }
.card-body h3 { font-size: 1.15rem; margin-bottom: 10px; color: var(--text-primary); }
.card-body p { color: var(--text-secondary); font-size: 0.92rem; }

/* Feature list */
.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  list-style: none;
}

.feature-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
}

.feature-item h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  color: var(--accent-pink);
}

.feature-item p { color: var(--text-secondary); font-size: 0.9rem; }

/* Article content */
.article-content { max-width: 860px; margin: 0 auto; }
.article-content h2 {
  font-size: 1.5rem;
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border-color);
}
.article-content h3 { font-size: 1.2rem; margin: 24px 0 12px; color: var(--accent-pink); }
.article-content p { margin-bottom: 16px; color: var(--text-secondary); }
.article-content ul, .article-content ol { margin: 0 0 16px 24px; color: var(--text-secondary); }
.article-content li { margin-bottom: 8px; }
.article-content img {
  border-radius: var(--radius);
  margin: 24px auto;
  border: 1px solid var(--border-color);
  max-width: 360px;
}

.inline-img-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  margin: 28px 0;
}

.inline-img-row img {
  width: calc(50% - 10px);
  max-width: 280px;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}

.toc {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 36px;
}

.toc h2 { font-size: 1.1rem; margin-bottom: 12px; border: none; padding: 0; }
.toc ol { margin-left: 20px; color: var(--text-secondary); }
.toc a { color: var(--text-secondary); }
.toc a:hover { color: var(--accent-pink); }

/* Page header for subpages */
.page-header {
  background: var(--bg-secondary);
  padding: 48px 0 36px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.page-header h1 { font-size: clamp(1.6rem, 4vw, 2.2rem); margin-bottom: 10px; }
.page-header p { color: var(--text-secondary); }

.page-content { padding: 40px 0 60px; }

/* Error pages */
.error-page {
  text-align: center;
  padding: 80px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.error-code {
  font-size: 6rem;
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.error-page h1 { font-size: 1.5rem; margin: 16px 0 12px; }
.error-page p { color: var(--text-secondary); margin-bottom: 28px; }

.btn {
  display: inline-block;
  background: var(--gradient-brand);
  color: #fff;
  padding: 12px 28px;
  border-radius: 8px;
  font-weight: 600;
  transition: opacity 0.2s;
}

.btn:hover { opacity: 0.9; color: #fff; }

/* Footer */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 40px 0 24px;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}

.footer-col h3 { font-size: 1rem; margin-bottom: 14px; color: var(--text-primary); }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: var(--text-secondary); font-size: 0.9rem; }
.footer-col a:hover { color: var(--accent-pink); }

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Breadcrumb */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.88rem;
  color: var(--text-secondary);
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--accent-pink); }

/* Responsive */
@media (max-width: 768px) {
  .nav-toggle { display: block; }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
  }

  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; padding: 0 16px; }
  .main-nav a { display: block; padding: 12px 16px; }

  .hero { padding: 40px 0 36px; }
  .section { padding: 36px 0; }
  .inline-img-row img { width: 100%; max-width: 320px; }
  .content-card img { max-height: 360px; }
}

@media (min-width: 769px) {
  .hero-inner {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 40px;
    align-items: center;
    text-align: left;
  }
  .hero-inner .hero-text { order: 1; }
  .hero-inner .hero-img-wrap { order: 2; }
  .hero-badges { justify-content: flex-start; }
  .hero-subtitle { margin-left: 0; }
}