/* roulang page: index */
:root {
      --bg-primary: #0B0F19;
      --bg-secondary: #161D2F;
      --accent-gold: #C5A880;
      --accent-gold-hover: #D8BFA0;
      --accent-green: #10B981;
      --text-main: #F3F4F6;
      --text-sub: #9CA3AF;
      --border-dark: #262F45;
      --border-light: rgba(197, 168, 128, 0.25);
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-primary);
      color: var(--text-main);
      overflow-x: hidden;
    }
    body {
      overflow-x: hidden;
      margin: 0;
      padding: 0;
    }
    .gold-gradient-text {
      background: linear-gradient(135deg, #F5E6D3 0%, #C5A880 50%, #9E7D52 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .vip-card-glow {
      background: rgba(22, 29, 47, 0.85);
      border: 1px solid rgba(197, 168, 128, 0.18);
      transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .vip-card-glow:hover {
      transform: translateY(-4px);
      border-color: rgba(197, 168, 128, 0.55);
      box-shadow: 0 12px 30px -10px rgba(197, 168, 128, 0.18);
    }
    .btn-gold {
      background: linear-gradient(135deg, #D4BA93 0%, #C5A880 100%);
      color: #0B0F19;
      font-weight: 600;
      transition: all 0.25s ease;
    }
    .btn-gold:hover {
      background: linear-gradient(135deg, #E2CCA8 0%, #D4BA93 100%);
      box-shadow: 0 0 20px rgba(197, 168, 128, 0.4);
    }