/* roulang page: index */
:root {
            --primary: #0052D9;
            --secondary: #00A870;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --bg-light: #F8FAFC;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            overflow-x: hidden;
        }
        .bento-hero-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 1.25rem;
        }
        @media (max-width: 1024px) {
            .bento-hero-grid {
                display: flex;
                flex-direction: column;
            }
        }
        .code-window-border {
            border: 1px solid rgba(255, 255, 255, 0.12);
            box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.4);
        }
        .pulse-beacon {
            position: relative;
        }
        .pulse-beacon::after {
            content: '';
            position: absolute;
            top: 2px;
            left: 2px;
            width: 8px;
            height: 8px;
            background-color: #00A870;
            border-radius: 50%;
            animation: pulse-ring 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
        }
        @keyframes pulse-ring {
            0% { transform: scale(0.9); opacity: 1; }
            70% { transform: scale(2.4); opacity: 0; }
            100% { transform: scale(2.4); opacity: 0; }
        }