/* roulang page: index */
:root {
            --color-primary: #0F4C3A;
            --color-accent: #E88B00;
            --color-graphite: #121816;
            --color-surface: #F8F9FA;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--color-surface);
            color: #2D3748;
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            line-height: 1.75;
        }
        .hero-bg {
            background: linear-gradient(135deg, rgba(15, 76, 58, 0.94) 0%, rgba(18, 24, 22, 0.96) 100%), url('/assets/images/312d44c1b9d256b9.png') center/cover no-repeat;
        }
        .stats-bg {
            background: linear-gradient(rgba(18, 24, 22, 0.92), rgba(18, 24, 22, 0.96)), url('/assets/images/d7705e21f401b670.jpg') center/cover no-repeat;
        }