/* roulang page: index */
:root {
      --primary: #2A4BFF;
      --accent: #FF3366;
      --bg-light: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #64748B;
    }
    html {
      scroll-behavior: smooth;
    }
    .hero-overlay {
      background: linear-gradient(135deg, rgba(11, 15, 25, 0.92) 0%, rgba(30, 54, 179, 0.82) 100%);
    }
    .glass-nav {
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
    }
    .glow-card {
      transition: all 0.3s ease;
      box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
    }
    .glow-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 30px -4px rgba(42, 75, 255, 0.12);
    }
    .timeline-dot::after {
      content: '';
      position: absolute;
      width: 2px;
      height: 100%;
      background: #E2E8F0;
      left: 50%;
      top: 2rem;
      transform: translateX(-50%);
    }
    @media (max-width: 768px) {
      .timeline-dot::after {
        display: none;
      }
    }