/* roulang page: index */
:root {
      --bg-dark: #080C16;
      --bg-deep: #0D1B2E;
      --neon-cyan: #00F2FE;
      --neon-green: #10B981;
      --text-muted: #8FA3BF;
    }
    body {
      background-color: var(--bg-dark);
      color: #F1F5F9;
      font-family: 'PingFang SC', 'Inter', system-ui, -apple-system, sans-serif;
      overflow-x: hidden;
    }
    .glass-card {
      background: rgba(16, 30, 54, 0.68);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid rgba(0, 242, 254, 0.16);
      border-radius: 16px;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-card:hover {
      border-color: rgba(0, 242, 254, 0.45);
      box-shadow: 0 10px 30px -10px rgba(0, 242, 254, 0.25);
      transform: translateY(-3px);
    }
    .neon-btn-primary {
      background: linear-gradient(135deg, #00F2FE 0%, #4FACFE 100%);
      color: #080C16;
      font-weight: 700;
      border-radius: 9999px;
      transition: all 0.25s ease;
      box-shadow: 0 0 15px rgba(0, 242, 254, 0.35);
    }
    .neon-btn-primary:hover {
      box-shadow: 0 0 25px rgba(0, 242, 254, 0.7);
      transform: translateY(-2px);
    }
    .neon-btn-outline {
      border: 1px solid rgba(0, 242, 254, 0.5);
      color: #00F2FE;
      background: rgba(0, 242, 254, 0.05);
      border-radius: 9999px;
      transition: all 0.25s ease;
    }
    .neon-btn-outline:hover {
      background: rgba(0, 242, 254, 0.15);
      box-shadow: 0 0 20px rgba(0, 242, 254, 0.4);
      transform: translateY(-2px);
    }
    .text-glow {
      text-shadow: 0 0 20px rgba(0, 242, 254, 0.45);
    }
    .tab-btn.active {
      background: rgba(0, 242, 254, 0.15);
      border-color: #00F2FE;
      color: #00F2FE;
    }