/* roulang page: index */
:root {
            --primary: #0B132B;
            --primary-light: #1C2541;
            --accent: #00FF87;
            --accent-cyan: #6FFFE9;
            --bg-base: #F8F9FA;
            --text-dark: #1A202C;
            --text-muted: #64748B;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-dark);
            background-color: var(--bg-base);
            margin: 0;
            padding: 0;
            line-height: 1.6;
        }
        .glow-accent {
            box-shadow: 0 0 25px rgba(0, 255, 135, 0.35);
        }
        .tech-border-glow:hover {
            box-shadow: 0 10px 30px -5px rgba(11, 19, 43, 0.12), 0 0 0 1px rgba(0, 255, 135, 0.5);
        }
        .code-tag {
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
            letter-spacing: 0.08em;
        }