/* roulang page: index */
:root {
            --brand-main: #1B3632;
            --brand-deep: #0F201E;
            --brand-gold: #B89563;
            --brand-gold-light: #D4B483;
            --bg-base: #FFFFFF;
            --bg-subtle: #F8FAFC;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --border-soft: #E2E8F0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            color: var(--text-main);
            background-color: var(--bg-base);
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        .section-gutter {
            padding-top: 5.5rem;
            padding-bottom: 5.5rem;
        }
        @media (max-width: 768px) {
            .section-gutter {
                padding-top: 3.5rem;
                padding-bottom: 3.5rem;
            }
        }