/* roulang page: index */
:root {
            --primary: #0A2540;
            --accent: #00D4B2;
            --bg-light: #F4F7F6;
            --text-dark: #0D1D2D;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            color: #0D1D2D;
            background-color: #FFFFFF;
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            -webkit-font-smoothing: antialiased;
        }
        .text-glow {
            text-shadow: 0 0 15px rgba(0, 212, 178, 0.4);
        }
        .code-bg {
            background: linear-gradient(135deg, rgba(10,37,64,0.95) 0%, rgba(6,21,36,0.98) 100%);
        }
        /* 自定义手风琴交互动效 */
        details summary::-webkit-details-marker {
            display: none;
        }
        details[open] summary svg {
            transform: rotate(180deg);
        }