/* roulang page: index */
:root {
            --dom: #132E27;
            --acc: #00D09C;
            --bg: #F6F8F7;
            --dark: #0B1713;
            --text: #1F2927;
            --sub: #5C6D67;
        }
        * { box-sizing: border-box; }
        body {
            font-family: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        html { scroll-behavior: smooth; }
        .clip-hero {
            clip-path: polygon(0 0, 100% 0, 100% 93%, 0 100%);
        }
        @media (max-width: 768px) {
            .clip-hero { clip-path: none; }
        }
        .band-pattern {
            background-image: radial-gradient(rgba(0, 208, 156, 0.12) 1px, transparent 1px);
            background-size: 24px 24px;
        }