/* roulang page: index */
:root {
            --primary: #0B192C;
            --accent: #00E599;
            --dark-bg: #070D18;
            --bg-light: #F8FAFC;
        }
        html { scroll-behavior: smooth; }
        .hero-pattern {
            background-image: linear-gradient(135deg, rgba(11, 25, 44, 0.94) 0%, rgba(7, 13, 24, 0.98) 100%), url('/assets/images/4c640a3c91438a18.jpg');
            background-size: cover;
            background-position: center;
        }
        .dark-grid-pattern {
            background-color: #070D18;
            background-image: radial-gradient(rgba(0, 229, 153, 0.12) 1px, transparent 1px);
            background-size: 24px 24px;
        }
        .card-hover {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 32px -6px rgba(11, 25, 44, 0.12), 0 6px 12px -2px rgba(11, 25, 44, 0.05);
        }
        .ai-corner {
            position: relative;
        }
        .ai-corner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 14px;
            height: 14px;
            border-top: 2px solid #00E599;
            border-left: 2px solid #00E599;
        }
        .ai-corner::after {
            content: '';
            position: absolute;
            bottom: 0;
            right: 0;
            width: 14px;
            height: 14px;
            border-bottom: 2px solid #00E599;
            border-right: 2px solid #00E599;
        }
        details > summary::-webkit-details-marker { display: none; }
        details[open] summary svg { transform: rotate(180deg); }