/* roulang page: index */
:root {
            --primary-green: #00E676;
            --primary-dark: #0A192F;
            --bg-light: #F4F7FA;
            --text-main: #121824;
        }
        html {
            scroll-behavior: smooth;
            font-family: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
        }
        body {
            overflow-x: hidden;
            background-color: #ffffff;
        }
        .text-glow {
            text-shadow: 0 0 15px rgba(0, 230, 118, 0.4);
        }
        .card-hover-effect {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-hover-effect:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 230, 118, 0.15);
            border-color: rgba(0, 230, 118, 0.5);
        }
        .hero-overlay {
            background: linear-gradient(135deg, rgba(2, 12, 27, 0.92) 0%, rgba(10, 25, 47, 0.85) 100%);
        }
        .cta-banner-bg {
            background: linear-gradient(135deg, #0A192F 0%, #020C1B 100%);
        }