/* roulang page: index */
:root {
            --primary: #0066FF;
            --accent: #00D2FF;
            --bg-canvas: #F8F9FA;
            --text-main: #0F172A;
            --text-muted: #475569;
            --border-color: rgba(226, 232, 240, 0.9);
        }
        body {
            background-color: var(--bg-canvas);
            color: var(--text-main);
            -webkit-font-smoothing: antialiased;
        }
        .grid-pattern {
            background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
            background-size: 24px 24px;
        }
        .industrial-card {
            background: #FFFFFF;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.04);
            transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.25s ease;
        }
        .industrial-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 28px -4px rgba(0, 102, 255, 0.08);
            border-color: rgba(0, 102, 255, 0.3);
        }
        .dark-card {
            background: rgba(18, 24, 36, 0.85);
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            transition: all 0.3s ease;
        }
        .dark-card:hover {
            border-color: rgba(0, 210, 255, 0.4);
            box-shadow: 0 8px 32px rgba(0, 102, 255, 0.15);
        }
        .subtle-badge {
            background: rgba(0, 102, 255, 0.06);
            border: 1px solid rgba(0, 102, 255, 0.15);
            color: #0066FF;
        }