/* roulang page: index */
:root {
            --terminal-dark: #0D1117;
            --terminal-panel: #161B22;
            --terminal-border: #30363D;
            --accent-emerald: #10B981;
            --accent-cyan: #06B6D4;
            --light-bg: #F6F8FA;
            --light-card: #FFFFFF;
            --border-light: #E1E4E8;
            --font-code: 'JetBrains Mono', monospace;
            --font-ui: 'Noto Sans SC', sans-serif;
        }

        body {
            font-family: var(--font-ui);
            background-color: #FFFFFF;
            color: #1F2937;
            line-height: 1.75;
            overflow-x: hidden;
        }

        .font-mono-code {
            font-family: var(--font-code);
        }

        .terminal-grid {
            background-image: radial-gradient(rgba(16, 185, 129, 0.08) 1px, transparent 1px);
            background-size: 24px 24px;
        }

        .dark-terminal-grid {
            background-image: radial-gradient(rgba(6, 182, 212, 0.12) 1px, transparent 1px);
            background-size: 24px 24px;
        }

        .code-shadow {
            box-shadow: 0 20px 40px -15px rgba(13, 17, 23, 0.4);
        }

        .custom-scrollbar::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }
        .custom-scrollbar::-webkit-scrollbar-track {
            background: #161B22;
        }
        .custom-scrollbar::-webkit-scrollbar-thumb {
            background: #30363D;
            border-radius: 3px;
        }
        .custom-scrollbar::-webkit-scrollbar-thumb:hover {
            background: #10B981;
        }

        .accordion-content {
            transition: max-height 0.35s ease-out, opacity 0.25s ease;
        }