/* roulang page: index */
:root {
            --color-primary: #0F172A;
            --color-accent: #10B981;
            --color-bg-light: #F8FAFC;
            --color-border: #E2E8F0;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
        }
        body {
            font-family: var(--font-stack);
            background-color: var(--color-bg-light);
            color: #334155;
            line-height: 1.75;
        }
        .text-glow {
            text-shadow: 0 0 20px rgba(16, 185, 129, 0.4);
        }
        .clip-badge {
            clip-path: polygon(0 0, 100% 0, 92% 100%, 0% 100%);
        }
        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
        }
        .accordion-item.active .accordion-content {
            max-height: 200px;
        }
        .accordion-item.active .accordion-icon {
            transform: rotate(180deg);
        }