/* ===================================================================
   念云 (niancloud.lol) - 顶级大牌奢华系统 (Luxury Haute DTC)
   =================================================================== */
:root {
  --lux-bg: #09090b;
  --lux-surface: #18181b;
  --lux-card: rgba(24, 24, 27, 0.7);
  --lux-gold: #d4af37;
  --lux-silver: #e4e4e7;
  --lux-text: #f4f4f5;
  --lux-muted: #a1a1aa;
  --lux-border: 1px solid rgba(255, 255, 255, 0.12);
  --lux-border-gold: 1px solid rgba(212, 175, 55, 0.4);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background-color: var(--lux-bg);
  background-image:
    radial-gradient(circle at 80% 20%, rgba(212, 175, 55, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.03) 0%, transparent 50%);
  color: var(--lux-text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", sans-serif;
  line-height: 1.75;
  letter-spacing: -0.01em;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
header.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(9, 9, 11, 0.88);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.header-inner {
  display: flex; justify-content: space-between; align-items: center;
  height: 72px; max-width: 1200px; margin: 0 auto; padding: 0 24px;
}
.brand-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: #fff;
  font-weight: 700; font-size: 1.25rem; letter-spacing: 0.05em;
}
.lux-seal {
  font-size: 0.7rem; color: var(--lux-gold); font-weight: 700;
  border: 1px solid rgba(212, 175, 55, 0.4); padding: 2px 8px; border-radius: 9999px;
  background: rgba(212, 175, 55, 0.08);
}
nav.main-nav ul { display: flex; list-style: none; gap: 28px; align-items: center; }
nav.main-nav a {
  color: var(--lux-muted); text-decoration: none; font-size: 0.92rem;
  font-weight: 500; transition: color 0.2s;
}
nav.main-nav a:hover, nav.main-nav a.active { color: #fff; }
.header-cta {
  background: #ffffff; color: #000000 !important; font-size: 0.88rem; font-weight: 700;
  padding: 8px 20px; border-radius: 9999px; text-decoration: none; transition: all 0.2s;
}
.header-cta:hover { background: var(--lux-gold); color: #000 !important; }

/* HERO LUXURY */
.hero-lux { padding: 80px 0 90px; text-align: center; }
.lux-kicker {
  display: inline-block; font-size: 0.78rem; font-weight: 700;
  color: var(--lux-gold); letter-spacing: 0.2em; text-transform: uppercase;
  margin-bottom: 20px;
}
.hero-title {
  font-size: 3.4rem; font-weight: 800; line-height: 1.15; margin-bottom: 22px;
  color: #fff; max-width: 900px; margin-left: auto; margin-right: auto;
}
.hero-title span {
  background: linear-gradient(135deg, #ffffff 40%, var(--lux-gold) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 1.15rem; color: var(--lux-muted); max-width: 680px;
  margin: 0 auto 36px; line-height: 1.8;
}
.hero-actions { display: flex; justify-content: center; gap: 16px; margin-bottom: 50px; }
.btn-lux-primary {
  background: #ffffff; color: #000000; font-weight: 700; font-size: 0.95rem;
  padding: 14px 34px; border-radius: 9999px; text-decoration: none; transition: all 0.2s;
}
.btn-lux-primary:hover { background: var(--lux-gold); }
.btn-lux-ghost {
  background: rgba(255, 255, 255, 0.05); color: #fff; font-weight: 600; font-size: 0.95rem;
  padding: 13px 28px; border-radius: 9999px; text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

/* STRIPE STRIP PERFORMANCE BAR */
.lux-strip-card {
  max-width: 860px; margin: 0 auto; background: var(--lux-card);
  border: var(--lux-border); border-radius: 16px; padding: 24px 32px;
  backdrop-filter: blur(16px); display: flex; justify-content: space-around;
  align-items: center; box-shadow: 0 10px 40px rgba(0,0,0,0.6);
}
.lux-stat { text-align: center; }
.lux-stat-val { font-size: 1.8rem; font-weight: 800; color: #fff; }
.lux-stat-label { font-size: 0.78rem; color: var(--lux-muted); text-transform: uppercase; letter-spacing: 0.05em; }

/* LUXURY CARDS */
.section-lux { padding: 80px 0; }
.lux-head { text-align: center; margin-bottom: 50px; }
.lux-head h2 { font-size: 2.2rem; font-weight: 800; color: #fff; margin-bottom: 10px; }
.lux-head p { color: var(--lux-muted); font-size: 1.05rem; }
.lux-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.lux-card {
  background: var(--lux-card); border: var(--lux-border);
  border-radius: 16px; padding: 32px 28px; backdrop-filter: blur(16px);
  transition: transform 0.2s, border-color 0.2s;
}
.lux-card:hover { transform: translateY(-4px); border-color: rgba(212, 175, 55, 0.4); }
.lux-card-num { font-size: 0.72rem; color: var(--lux-gold); font-weight: 800; letter-spacing: 0.1em; margin-bottom: 12px; }
.lux-card h3 { font-size: 1.25rem; font-weight: 700; color: #fff; margin-bottom: 10px; }
.lux-card p { font-size: 0.94rem; color: var(--lux-muted); line-height: 1.8; }

/* PRICING */
.pricing-lux-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.lux-plan {
  background: var(--lux-card); border: var(--lux-border);
  border-radius: 18px; padding: 38px 30px; backdrop-filter: blur(16px); position: relative;
}
.lux-plan.featured { border: var(--lux-border-gold); box-shadow: 0 0 40px rgba(212, 175, 55, 0.15); }
.lux-plan-badge {
  position: absolute; top: -14px; right: 24px;
  background: var(--lux-gold); color: #000; font-size: 0.72rem;
  font-weight: 800; padding: 2px 10px; border-radius: 9999px;
}
.lux-plan h3 { font-size: 1.35rem; font-weight: 700; color: #fff; margin-bottom: 6px; }
.lux-plan-price { font-size: 2.6rem; font-weight: 800; color: #fff; margin: 18px 0; }
.lux-plan-price span { font-size: 0.9rem; color: var(--lux-muted); font-weight: 500; }
.lux-plan ul { list-style: none; margin-bottom: 30px; }
.lux-plan li { padding: 8px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.06); font-size: 0.92rem; color: var(--lux-muted); }
.lux-plan li::before { content: "— "; color: var(--lux-gold); }

footer.site-footer {
  background: #000000; border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 60px 0 30px; margin-top: 80px;
}
.footer-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 28px; margin-bottom: 24px; }
.footer-grid a { color: var(--lux-muted); text-decoration: none; font-size: 0.9rem; }
.footer-grid a:hover { color: #fff; }
.footer-bottom { text-align: center; color: #52525b; font-size: 0.85rem; }

/* ARTICLE & LEGAL */
.legal-card, .article-content, .article-container, .article-body, .article-page {
  max-width: 860px; margin: 40px auto 80px; background: var(--lux-card);
  border: var(--lux-border); border-radius: 16px; padding: 48px;
  backdrop-filter: blur(20px); box-shadow: 0 10px 40px rgba(0,0,0,0.6);
}
.legal-card h1, .article-content h1 { font-size: 2.3rem; font-weight: 800; margin-bottom: 16px; color: #fff; }
.legal-card h2, .article-content h2 {
  font-size: 1.45rem; font-weight: 700; margin: 34px 0 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08); padding-bottom: 8px; color: var(--lux-gold);
}
.legal-card p, .article-content p { font-size: 1.02rem; line-height: 1.85; color: var(--lux-muted); margin-bottom: 18px; }
.legal-card ul, .article-content ul { margin-left: 20px; margin-bottom: 20px; color: var(--lux-muted); }