/* 大哥云 (dagey.mom) Imperial Gold & Obsidian Onyx Theme */
:root {
  --bg-dark: #0A0907;
  --bg-surface: #14120C;
  --bg-card: rgba(22, 19, 13, 0.88);
  --bg-card-hover: rgba(34, 29, 20, 0.98);
  --border: rgba(245, 158, 11, 0.22);
  --border-glow: rgba(251, 191, 36, 0.5);
  --primary: #F59E0B;
  --primary-glow: #FBBF24;
  --primary-gradient: linear-gradient(135deg, #FDE68A 0%, #F59E0B 50%, #B45309 100%);
  --secondary: #EAB308;
  --accent-gold: #FEF08A;
  --text-main: #FFFFFF;
  --text-muted: #D1D5DB;
  --text-dim: #9CA3AF;
  --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 15% 15%, rgba(245, 158, 11, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 85% 85%, rgba(234, 179, 8, 0.08) 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(10, 9, 7, 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(245, 158, 11, 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: 28px; 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: #000 !important; font-weight: 700;
  padding: 8px 20px; border-radius: 8px; text-decoration: none; font-size: 13px;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35); transition: transform 0.2s, box-shadow 0.2s;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(245, 158, 11, 0.5); }

/* Hero */
.hero { padding: 90px 0 60px; text-align: center; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 999px;
  background: rgba(245, 158, 11, 0.12); border: 1px solid var(--border);
  color: var(--primary-glow); font-size: 13px; font-weight: 600; margin-bottom: 24px;
}
.hero h1 { font-size: 48px; font-weight: 900; letter-spacing: -1px; line-height: 1.2; margin-bottom: 20px; }
.hero h1 span { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-desc { font-size: 18px; color: var(--text-muted); max-width: 820px; margin: 0 auto 36px; line-height: 1.8; }
.hero-btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin-bottom: 50px; }
.btn-primary {
  background: var(--primary-gradient); color: #000; font-weight: 800; font-size: 16px;
  padding: 14px 34px; border-radius: 10px; text-decoration: none; display: inline-flex; align-items: center; gap: 8px;
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35); transition: all 0.2s ease;
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(245, 158, 11, 0.55); }
.btn-secondary {
  background: var(--bg-surface); color: var(--text-main); font-weight: 700; font-size: 16px;
  padding: 14px 32px; border-radius: 10px; text-decoration: none; border: 1px solid var(--border);
  transition: all 0.2s ease;
}
.btn-secondary:hover { border-color: var(--primary); background: rgba(245, 158, 11, 0.08); }

/* Stats Bar */
.stats-bar {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  background: var(--bg-surface); border: 1px solid var(--border); border-radius: 16px;
  padding: 28px; margin-bottom: 70px;
}
.stat-item { text-align: center; }
.stat-num { font-size: 36px; font-weight: 900; background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.stat-label { font-size: 13px; color: var(--text-dim); margin-top: 4px; font-weight: 500; }

/* Section Header */
.section { padding: 60px 0; }
.section-head { text-align: center; margin-bottom: 48px; }
.section-tag { color: var(--primary-glow); font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; }
.section-title { font-size: 32px; font-weight: 800; margin-top: 8px; }
.section-desc { font-size: 16px; color: var(--text-dim); max-width: 680px; margin: 12px auto 0; }

/* Grid Cards */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px;
  padding: 30px; transition: all 0.25s ease;
}
.card:hover { transform: translateY(-5px); border-color: var(--border-glow); background: var(--bg-card-hover); box-shadow: 0 16px 36px rgba(245, 158, 11, 0.15); }
.card-icon { width: 48px; height: 48px; border-radius: 10px; background: rgba(245, 158, 11, 0.12); display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 20px; border: 1px solid var(--border); }
.card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* Article Layout */
.article-container { max-width: 860px; margin: 40px auto 80px; padding: 0 24px; }
.article-header { margin-bottom: 36px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.article-meta { display: flex; gap: 16px; color: var(--text-dim); font-size: 14px; margin-bottom: 12px; }
.article-title { font-size: 36px; font-weight: 900; line-height: 1.3; margin-bottom: 16px; }
.article-body { font-size: 16px; color: var(--text-muted); line-height: 1.85; }
.article-body h2 { font-size: 24px; color: #FFF; margin: 36px 0 16px; padding-left: 12px; border-left: 4px solid var(--primary); }
.article-body h3 { font-size: 19px; color: #FFF; margin: 24px 0 12px; }
.article-body p { margin-bottom: 18px; }
.article-body ul, .article-body ol { margin: 16px 0 24px 24px; }
.article-body li { margin-bottom: 8px; }
.article-body blockquote { background: var(--bg-surface); border-left: 4px solid var(--primary); padding: 16px 20px; border-radius: 0 8px 8px 0; margin: 24px 0; color: var(--text-main); }
.article-body table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.article-body th, .article-body td { border: 1px solid var(--border); padding: 12px 16px; text-align: left; }
.article-body th { background: rgba(245, 158, 11, 0.12); color: var(--primary-glow); }

/* Footer */
.footer { border-top: 1px solid var(--border); background: #070605; padding: 60px 0 30px; margin-top: 80px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand h4 { font-size: 18px; font-weight: 800; color: var(--primary-glow); margin-bottom: 12px; }
.footer-brand p { font-size: 14px; color: var(--text-dim); line-height: 1.7; max-width: 320px; }
.footer-col h5 { font-size: 15px; font-weight: 700; color: #FFF; margin-bottom: 16px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--text-dim); text-decoration: none; font-size: 13px; transition: color 0.2s; }
.footer-links a:hover { color: var(--primary); }

.friendly-links-section {
  border-top: 1px dashed rgba(245, 158, 11, 0.2);
  padding: 30px 0; margin-top: 30px;
}
.friendly-links-section h5 { font-size: 14px; font-weight: 700; color: var(--primary-glow); margin-bottom: 14px; }
.links-flex { display: flex; flex-wrap: wrap; gap: 12px 20px; font-size: 13px; color: var(--text-dim); }
.links-flex a { color: var(--text-dim); text-decoration: none; transition: color 0.2s; }
.links-flex a:hover { color: var(--primary-glow); }

.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.06); padding-top: 24px; text-align: center; color: var(--text-dim); font-size: 13px; }

@media (max-width: 900px) {
  .hero h1 { font-size: 34px; }
  .cards-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .nav-menu { display: none; }
}