/* roulang page: index */
:root {
      --bg-dark: #0b0f19;
      --brand-blue: #1e40af;
      --accent-cyan: #06b6d4;
      --neon-blue: #3b82f6;
      --surface-glass: rgba(15, 23, 42, 0.72);
      --border-glow: rgba(6, 182, 212, 0.22);
    }
    body {
      background-color: var(--bg-dark);
      color: #cbd5e1;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
      overflow-x: hidden;
    }
    .glass-panel {
      background: var(--surface-glass);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--border-glow);
    }
    .glass-panel:hover {
      border-color: rgba(6, 182, 212, 0.45);
    }
    .glow-btn {
      background: linear-gradient(135deg, #06b6d4, #1e40af);
      box-shadow: 0 0 22px rgba(6, 182, 212, 0.42);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glow-btn:hover {
      box-shadow: 0 0 32px rgba(6, 182, 212, 0.65);
      transform: translateY(-2px);
    }
    .glow-outline-btn {
      border: 1px solid var(--accent-cyan);
      box-shadow: inset 0 0 10px rgba(6, 182, 212, 0.2);
      transition: all 0.3s ease;
    }
    .glow-outline-btn:hover {
      background: rgba(6, 182, 212, 0.15);
      box-shadow: 0 0 18px rgba(6, 182, 212, 0.35);
    }
    .neon-text {
      text-shadow: 0 0 12px rgba(6, 182, 212, 0.5);
    }
    .bento-hero-grid {
      display: grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 1.5rem;
    }
    @media (max-width: 1024px) {
      .bento-hero-grid {
        display: flex;
        flex-direction: column;
      }
    }