/* roulang page: index */
:root {
            --primary: hsl(212, 72%, 18%);
            --accent: hsl(28, 95%, 52%);
            --dark: hsl(215, 28%, 12%);
            --light: hsl(210, 20%, 98%);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--light);
            color: #1e293b;
            overflow-x: hidden;
        }
        .hero-bg {
            background-image: linear-gradient(rgba(10, 25, 47, 0.82), rgba(10, 25, 47, 0.88)), url('/assets/images/9340a7a32d45c1ce.webp');
            background-size: cover;
            background-position: center;
        }
        .stats-bg {
            background-image: linear-gradient(rgba(13, 23, 38, 0.94), rgba(13, 23, 38, 0.94)), url('/assets/images/58db4d740242916d.webp');
            background-size: cover;
            background-position: center;
        }
        details summary::-webkit-details-marker {
            display: none;
        }