/* roulang page: index */
:root {
            --primary: #0F3A34;
            --accent: #D4AF37;
            --surface-dark: #08211D;
            --neutral-bg: #F9F8F5;
            --text-dark: #1D2928;
            --text-muted: #5D6B69;
        }
        * {
            box-sizing: border-box;
            scroll-behavior: smooth;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--text-dark);
            background-color: var(--neutral-bg);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        .hero-diagonal-clip {
            clip-path: polygon(0 0, 100% 0, 100% 90%, 0 100%);
        }
        @media (max-width: 768px) {
            .hero-diagonal-clip {
                clip-path: polygon(0 0, 100% 0, 100% 96%, 0 100%);
            }
        }