/* roulang page: index */
:root {
            --brand-primary: #10b981;
            --brand-secondary: #059669;
            --court-lime: #84cc16;
            --text-heading: #0f172a;
            --text-body: #475569;
            --bg-canvas: #f8fafc;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-body);
            background-color: #ffffff;
            overflow-x: hidden;
            scroll-behavior: smooth;
        }
        .hero-diagonal {
            clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
        }
        @media (max-width: 768px) {
            .hero-diagonal {
                clip-path: none;
            }
        }
        .details-arrow[open] summary svg {
            transform: rotate(180deg);
        }