/* roulang page: index */
:root {
            --primary: #F59E0B;
            --primary-hover: #D97706;
            --bg-base: #0B0F19;
            --surface: #1E293B;
            --surface-border: #334155;
            --text-light: #F8FAFC;
            --text-muted: #94A3B8;
        }
        body {
            background-color: var(--bg-base);
            color: var(--text-light);
            font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
            scroll-behavior: smooth;
        }
        .text-glow {
            text-shadow: 0 0 20px rgba(245, 158, 11, 0.35);
        }
        .card-sheen {
            border: 1px solid rgba(51, 65, 85, 0.7);
            background: linear-gradient(180deg, rgba(30, 41, 59, 0.85) 0%, rgba(15, 23, 42, 0.95) 100%);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-sheen:hover {
            border-color: rgba(245, 158, 11, 0.45);
            box-shadow: 0 10px 25px -5px rgba(245, 158, 11, 0.12);
            transform: translateY(-2px);
        }