/* roulang page: index */
:root {
            --brand-primary: #4f46e5;
            --brand-cyan: #06b6d4;
            --brand-dark: #0b0f19;
            --text-main: #0f172a;
            --text-muted: #475569;
        }
        html { scroll-behavior: smooth; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
        .hero-bg {
            background-image: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(11, 15, 25, 0.88) 100%), url('/assets/images/c5cd28e675fec7fa.webp');
            background-size: cover;
            background-position: center;
        }
        .deep-dark-section {
            background-image: linear-gradient(180deg, #0b0f19 0%, #111827 100%);
        }
        .badge-pill {
            background: rgba(6, 182, 212, 0.12);
            color: #0891b2;
            border: 1px solid rgba(6, 182, 212, 0.25);
        }
        .dark .badge-pill {
            background: rgba(6, 182, 212, 0.15);
            color: #22d3ee;
            border: 1px solid rgba(6, 182, 212, 0.3);
        }