/* roulang page: index */
:root {
            --color-primary: #00D084;
            --color-secondary: #FF5A1F;
            --bg-deep: #0C1017;
            --bg-card: #131924;
            --border-dim: #1E293B;
            --text-high: #FFFFFF;
            --text-mid: #94A3B8;
        }
        body {
            background-color: var(--bg-deep);
            color: var(--text-high);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        .glow-btn-green:hover {
            box-shadow: 0 0 20px rgba(0, 208, 132, 0.45);
            transform: translateY(-2px);
        }
        .glow-btn-orange:hover {
            box-shadow: 0 0 20px rgba(255, 90, 31, 0.45);
            transform: translateY(-2px);
        }
        .grid-pattern {
            background-size: 32px 32px;
            background-image: linear-gradient(to right, rgba(30, 41, 59, 0.4) 1px, transparent 1px),
                              linear-gradient(to bottom, rgba(30, 41, 59, 0.4) 1px, transparent 1px);
        }
        .num-font {
            font-family: 'DIN Alternate', 'Space Grotesk', sans-serif;
            font-feature-settings: "tnum";
            font-variant-numeric: tabular-nums;
        }
        .hardware-img-wrap img {
            transition: transform 0.4s ease;
        }
        .hardware-img-wrap:hover img {
            transform: scale(1.04);
        }