/* roulang page: index */
:root {
      --bg-dark: #070B14;
      --bg-surface: #0C1427;
      --primary-cyan: #00F2FE;
      --primary-blue: #0066FF;
      --text-main: #F8FAFC;
      --text-muted: #94A3B8;
    }

    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }

    .glass-panel {
      background: rgba(16, 26, 48, 0.75);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid rgba(0, 242, 254, 0.15);
      border-radius: 16px;
    }

    .glass-card {
      background: rgba(16, 26, 48, 0.65);
      backdrop-filter: blur(14px);
      border: 1px solid rgba(0, 242, 254, 0.12);
      border-radius: 16px;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .glass-card:hover {
      transform: translateY(-4px);
      border-color: rgba(0, 242, 254, 0.4);
      box-shadow: 0 10px 30px -10px rgba(0, 102, 255, 0.35);
    }

    .btn-glow {
      position: relative;
      overflow: hidden;
      background: linear-gradient(135deg, #0066FF 0%, #00F2FE 100%);
      transition: all 0.25s ease;
    }

    .btn-glow:hover {
      box-shadow: 0 0 25px rgba(0, 242, 254, 0.5);
      filter: brightness(1.1);
    }

    .btn-glow:active {
      transform: scale(0.98);
    }

    .btn-gold {
      background: linear-gradient(135deg, #FFDF00 0%, #D4AF37 50%, #996515 100%);
      color: #070B14;
      font-weight: 700;
      transition: all 0.25s ease;
    }

    .btn-gold:hover {
      box-shadow: 0 0 22px rgba(212, 175, 55, 0.6);
      filter: brightness(1.08);
    }

    .gradient-text {
      background: linear-gradient(135deg, #FFFFFF 20%, #00F2FE 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .gold-gradient-text {
      background: linear-gradient(135deg, #FFF6D1 10%, #D4AF37 60%, #AA771C 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .section-divider {
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }