/* roulang page: index */
:root {
            --primary: #0F172A;
            --accent-red: #EF4444;
            --accent-amber: #F59E0B;
            --bg-light: #F8FAFC;
            --border-color: #E2E8F0;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            background-color: var(--bg-light);
            color: #1E293B;
        }
        .technical-grid {
            background-image: radial-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px);
            background-size: 24px 24px;
        }
        .badge-pulse {
            box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
            animation: pulse-red 2s infinite;
        }
        @keyframes pulse-red {
            0% {
                transform: scale(0.95);
                box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
            }
            70% {
                transform: scale(1);
                box-shadow: 0 0 0 8px rgba(239, 68, 68, 0);
            }
            100% {
                transform: scale(0.95);
                box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
            }
        }

/* roulang page: category1 */
:root {
      --primary: #0F172A;
      --accent-red: #EF4444;
      --accent-amber: #F59E0B;
      --bg-light: #F8FAFC;
      --border-color: #E2E8F0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-light);
      color: #1E293B;
    }
    .technical-grid {
      background-image: radial-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px);
      background-size: 24px 24px;
    }
    .badge-pulse {
      box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
      animation: pulse-red 2s infinite;
    }
    @keyframes pulse-red {
      0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
      70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(239, 68, 68, 0); }
      100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
    }