/* roulang page: index */
:root {
            --primary: #00C58E;
            --primary-dark: #059669;
            --bg-dark: #090D12;
            --bg-card: #0F141C;
            --text-main: #1E293B;
            --text-muted: #64748B;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", PingFang SC, "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            letter-spacing: -0.01em;
            line-height: 1.7;
        }
        .text-glow {
            text-shadow: 0 0 20px rgba(0, 197, 142, 0.4);
        }
        .tech-grid {
            background-size: 32px 32px;
            background-image: linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                              linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
        }
        .accordion-content {
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
        }