/* roulang page: index */
:root {
      --bg-primary: #0d0f12;
      --bg-secondary: #16191f;
      --accent-primary: #6366f1;
      --accent-secondary: #06b6d4;
      --gold-main: #f59e0b;
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --border-subtle: rgba(255, 255, 255, 0.08);
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      background-color: var(--bg-primary);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .custom-gradient-border {
      border: 1px solid rgba(245, 158, 11, 0.25);
      background: linear-gradient(180deg, rgba(29, 34, 43, 0.85) 0%, rgba(22, 25, 31, 0.95) 100%);
    }
    .hero-badge-vip {
      background: linear-gradient(135deg, #2b1f0d 0%, #15110a 100%);
      border: 1px solid #d97706;
      box-shadow: 0 0 20px rgba(217, 119, 6, 0.25);
    }
    .text-glow-gold {
      text-shadow: 0 0 15px rgba(245, 158, 11, 0.4);
    }
    .nav-blur-bg {
      background: rgba(13, 15, 18, 0.88);
      backdrop-filter: blur(14px);
    }
    .section-divider {
      border-top: 1px solid var(--border-subtle);
    }