/* roulang page: index */
:root {
            --color-primary: #0A2540;
            --color-dark: #06121E;
            --color-accent: #00D084;
            --color-blue: #3A86FF;
            --color-text-main: #0F172A;
            --color-text-body: #334155;
            --color-text-muted: #64748B;
            --color-bg-alt: #F8FAFC;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--color-text-body);
            background-color: #FFFFFF;
        }
        .text-glow {
            text-shadow: 0 0 12px rgba(0, 208, 132, 0.4);
        }
        .card-shadow {
            box-shadow: 0 10px 30px -5px rgba(10, 37, 64, 0.06);
        }
        .card-shadow-hover:hover {
            box-shadow: 0 20px 40px -10px rgba(10, 37, 64, 0.12);
        }
        /* Details Summary Accordion Clean Style */
        details > summary {
            list-style: none;
        }
        details > summary::-webkit-details-marker {
            display: none;
        }