/* roulang page: index */
:root {
            --primary-orange: #FF5A1F;
            --primary-indigo: #12264D;
            --accent-green: #10B981;
            --text-main: #0F172A;
            --text-muted: #475569;
            --bg-light: #F8FAFC;
        }
        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
        }
        body {
            background-color: var(--bg-light);
            color: var(--text-main);
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        .hero-bg {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(18, 38, 77, 0.92) 100%), url('/assets/images/bb544b746028dafe.webp') center/cover no-repeat;
        }
        .btn-gradient {
            background: linear-gradient(135deg, #FF5A1F 0%, #FF8A3D 100%);
            box-shadow: 0 4px 14px rgba(255, 90, 31, 0.35);
            transition: all 0.25s ease;
        }
        .btn-gradient:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 90, 31, 0.45);
        }
        .card-shadow {
            box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
            transition: all 0.25s ease;
        }
        .card-shadow:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 35px -10px rgba(0, 0, 0, 0.09);
        }
        .badge-ping {
            position: relative;
        }
        .badge-ping::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 50%;
            transform: translateY(-50%);
            width: 8px;
            height: 8px;
            background-color: #10B981;
            border-radius: 50%;
            box-shadow: 0 0 8px #10B981;
        }