/* roulang page: index */
:root {
            --bg-color: #090D14;
            --mint-color: #00FF87;
            --cyan-color: #60EFFF;
            --border-color: rgba(255, 255, 255, 0.08);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--bg-color);
            color: #F3F4F6;
            overflow-x: hidden;
            line-height: 1.6;
        }
        .glow-border {
            border: 1px solid var(--border-color);
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .glow-border:hover {
            border-color: rgba(0, 255, 135, 0.35);
            transform: translateY(-4px);
            box-shadow: 0 10px 30px -10px rgba(0, 255, 135, 0.15);
        }
        .hero-pattern {
            background-image: radial-gradient(rgba(0, 255, 135, 0.12) 1px, transparent 1px);
            background-size: 32px 32px;
        }
        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease-out, opacity 0.3s ease;
            opacity: 0;
        }
        .accordion-content.active {
            max-height: 350px;
            opacity: 1;
        }