/* roulang page: index */
:root {
            --primary-color: #111827;
            --accent-color: #0D9488;
            --amber-color: #D97706;
            --bg-light: #F8FAFC;
            --bg-alt: #F1F5F9;
            --text-main: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--text-body);
            background-color: var(--bg-light);
            line-height: 1.7;
        }
        .hero-video-bg {
            background-image: linear-gradient(rgba(11, 15, 23, 0.78), rgba(11, 15, 23, 0.92)), url('/assets/images/71785e5295590ddd.jpg');
            background-size: cover;
            background-position: center;
        }
        .custom-card-shadow {
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .custom-card-shadow:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 20px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.03);
        }
        .badge-soft {
            letter-spacing: 0.06em;
            text-transform: uppercase;
        }