/* roulang page: index */
:root {
            --primary: #0F172A;
            --accent: #10B981;
            --secondary: #06B6D4;
            --dark-bg: #020617;
            --border-light: #E2E8F0;
            --border-dark: rgba(255, 255, 255, 0.08);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #F8FAFC;
            color: #0F172A;
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            overflow-x: hidden;
        }
        .pulse-dot {
            box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
            animation: pulse-ring 2s infinite;
        }
        @keyframes pulse-ring {
            0% {
                box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
            }
            70% {
                box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
            }
        }
        .glow-accent:hover {
            box-shadow: 0 10px 25px -5px rgba(16, 185, 129, 0.3);
        }
        details > summary::-webkit-details-marker {
            display: none;
        }