/* 大哥云百科 (dageyun.wiki) Hexagonal Knowledge Prism Theme */
:root {
  --bg-dark: #070B14;
  --bg-surface: #0F172A;
  --bg-card: rgba(15, 23, 42, 0.85);
  --bg-card-hover: rgba(30, 41, 59, 0.95);
  --border: rgba(56, 189, 248, 0.22);
  --border-glow: rgba(56, 189, 248, 0.55);
  --primary: #38BDF8;
  --primary-glow: #7DD3FC;
  --primary-gradient: linear-gradient(135deg, #BAE6FD 0%, #38BDF8 50%, #818CF8 100%);
  --secondary: #818CF8;
  --accent-cyan: #06B6D4;
  --text-main: #F8FAFC;
  --text-muted: #CBD5E1;
  --text-dim: #94A3B8;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --max-width: 1200px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(circle at 12% 18%, rgba(56, 189, 248, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 88% 82%, rgba(129, 140, 248, 0.10) 0%, transparent 45%);
  color: var(--text-main);
  font-family: var(--font-family);
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* Navbar */
.navbar {
  position: sticky; top: 0; z-index: 1000;
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  background: rgba(7, 11, 20, 0.88);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.navbar-inner { display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: #FFF; font-size: 20px; font-weight: 800; letter-spacing: -0.5px; }
.brand img { width: 36px; height: 36px; display: block; border-radius: 8px; filter: drop-shadow(0 2px 8px rgba(56, 189, 248, 0.4)); }
.brand span { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.nav-menu { display: flex; align-items: center; gap: 24px; list-style: none; }
.nav-link { color: var(--text-muted); text-decoration: none; font-size: 14px; font-weight: 600; transition: color 0.2s; }
.nav-link:hover, .nav-link.active { color: var(--primary-glow); }
.nav-cta {
  background: var(--primary-gradient); color: #070B14 !important; font-weight: 800;
  padding: 8px 20px; border-radius: 8px; text-decoration: none; font-size: 13px;
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.35); transition: transform 0.2s, box-shadow 0.2s;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(56, 189, 248, 0.5); }

/* Wiki Hero & Search Mock */
.wiki-hero { padding: 70px 0 40px; text-align: center; }
.wiki-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 999px;
  background: rgba(56, 189, 248, 0.12); border: 1px solid var(--border);
  color: var(--primary-glow); font-size: 13px; font-weight: 600; margin-bottom: 20px;
}
.wiki-hero h1 { font-size: 42px; font-weight: 900; letter-spacing: -0.8px; line-height: 1.25; margin-bottom: 18px; }
.wiki-hero h1 span { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.wiki-desc { font-size: 17px; color: var(--text-muted); max-width: 800px; margin: 0 auto 30px; line-height: 1.8; }

.search-box-wrap {
  max-width: 680px; margin: 0 auto 36px; position: relative;
}
.search-input {
  width: 100%; padding: 16px 24px 16px 52px; border-radius: 12px;
  background: var(--bg-surface); border: 1px solid var(--border);
  color: #FFF; font-size: 15px; outline: none; transition: border-color 0.2s, box-shadow 0.2s;
}
.search-input:focus { border-color: var(--primary); box-shadow: 0 0 20px rgba(56, 189, 248, 0.25); }
.search-icon { position: absolute; left: 20px; top: 50%; transform: translateY(-50%); color: var(--primary); font-size: 18px; pointer-events: none; }
.search-tags { display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap; margin-top: 14px; font-size: 13px; color: var(--text-dim); }
.search-tag-link { color: var(--primary-glow); text-decoration: none; background: rgba(56, 189, 248, 0.08); padding: 3px 10px; border-radius: 6px; border: 1px solid rgba(56, 189, 248, 0.15); transition: background 0.2s; }
.search-tag-link:hover { background: rgba(56, 189, 248, 0.2); }

/* Quick Action Banner */
.wiki-cta-banner {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.15), rgba(129, 140, 248, 0.15));
  border: 1px solid var(--border); border-radius: 16px; padding: 24px 32px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 50px;
}
.banner-text h3 { font-size: 18px; font-weight: 800; color: #FFF; margin-bottom: 6px; }
.banner-text p { font-size: 14px; color: var(--text-muted); }
.btn-wiki {
  background: var(--primary-gradient); color: #070B14; font-weight: 800; font-size: 14px;
  padding: 10px 22px; border-radius: 8px; text-decoration: none; display: inline-flex; align-items: center; gap: 6px;
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.3); transition: transform 0.2s; flex-shrink: 0;
}
.btn-wiki:hover { transform: translateY(-2px); }

/* Wiki Section & Grid */
.section { padding: 48px 0; }
.section-head { margin-bottom: 32px; }
.section-tag { font-size: 12px; font-weight: 800; color: var(--primary); letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 8px; }
.section-title { font-size: 26px; font-weight: 800; letter-spacing: -0.5px; color: #FFF; }
.section-desc { font-size: 15px; color: var(--text-dim); margin-top: 6px; }

.wiki-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.wiki-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px;
  padding: 24px; transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
  display: flex; flex-direction: column; justify-content: space-between; text-decoration: none; color: inherit;
}
.wiki-card:hover { transform: translateY(-4px); border-color: var(--border-glow); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5); }
.wiki-card-badge { display: inline-block; font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 4px; background: rgba(56, 189, 248, 0.15); color: var(--primary-glow); margin-bottom: 12px; }
.wiki-card h3 { font-size: 18px; font-weight: 700; color: #FFF; margin-bottom: 10px; line-height: 1.4; }
.wiki-card p { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin-bottom: 18px; flex-grow: 1; }
.wiki-card-footer { display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: var(--text-dim); border-top: 1px solid rgba(255, 255, 255, 0.06); padding-top: 12px; }
.read-more { color: var(--primary-glow); font-weight: 700; display: inline-flex; align-items: center; gap: 4px; }

/* Detail Page Article Layout */
.article-container { max-width: 860px; margin: 0 auto; padding: 40px 24px 80px; }
.breadcrumb { font-size: 13px; color: var(--text-dim); margin-bottom: 24px; display: flex; gap: 8px; align-items: center; }
.breadcrumb a { color: var(--primary-glow); text-decoration: none; }
.article-header { border-bottom: 1px solid var(--border); padding-bottom: 24px; margin-bottom: 32px; }
.article-meta { display: flex; gap: 16px; font-size: 13px; color: var(--text-dim); margin-top: 12px; align-items: center; }
.article-title { font-size: 32px; font-weight: 900; line-height: 1.3; color: #FFF; letter-spacing: -0.5px; }
.article-body { font-size: 16px; line-height: 1.85; color: var(--text-muted); }
.article-body h2 { font-size: 22px; font-weight: 800; color: #FFF; margin: 36px 0 16px; padding-bottom: 8px; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.article-body h3 { font-size: 18px; font-weight: 700; color: var(--primary-glow); margin: 24px 0 12px; }
.article-body p { margin-bottom: 20px; }
.article-body ul, .article-body ol { margin: 0 0 20px 24px; }
.article-body li { margin-bottom: 8px; }
.article-body blockquote {
  border-left: 3px solid var(--primary); background: rgba(56, 189, 248, 0.06);
  padding: 16px 20px; margin: 24px 0; border-radius: 0 8px 8px 0; font-size: 15px; color: #E2E8F0;
}
.article-body table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.article-body th, .article-body td { border: 1px solid var(--border); padding: 12px 16px; text-align: left; }
.article-body th { background: rgba(56, 189, 248, 0.12); color: #FFF; font-weight: 700; }
.article-body tr:nth-child(even) td { background: rgba(255, 255, 255, 0.02); }

/* Wiki Action Card inside Article */
.wiki-action-box {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(30, 41, 59, 0.95));
  border: 1px solid var(--border-glow); border-radius: 12px; padding: 24px; margin: 36px 0;
  text-align: center;
}
.wiki-action-box h4 { font-size: 18px; font-weight: 800; color: #FFF; margin-bottom: 8px; }
.wiki-action-box p { font-size: 14px; color: var(--text-muted); margin-bottom: 18px; }

/* Footer & Friendly Links */
footer {
  background: #04070D; border-top: 1px solid var(--border);
  padding: 60px 0 30px; margin-top: 60px; font-size: 14px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-about h4 { font-size: 18px; font-weight: 800; color: #FFF; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.footer-about p { color: var(--text-dim); line-height: 1.7; font-size: 13px; }
.footer-col h5 { font-size: 14px; font-weight: 700; color: #FFF; margin-bottom: 16px; text-transform: uppercase; letter-spacing: 1px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--text-muted); text-decoration: none; font-size: 13px; transition: color 0.2s; }
.footer-links a:hover { color: var(--primary-glow); }

.friendly-links-section {
  padding-top: 24px; border-top: 1px solid rgba(255, 255, 255, 0.08); margin-bottom: 24px;
}
.friendly-links-section h5 { font-size: 13px; font-weight: 700; color: var(--text-dim); margin-bottom: 12px; }
.links-flex { display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: 12px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.06); padding-top: 24px; text-align: center; color: var(--text-dim); font-size: 12px; }

@media (max-width: 900px) {
  .wiki-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .nav-menu { display: none; }
  .wiki-cta-banner { flex-direction: column; align-items: flex-start; }
}