/* roulang page: index */
:root {
            --primary: #0F2B5C;
            --primary-dark: #0A1128;
            --accent-green: #00D285;
            --accent-cyan: #00B4D8;
            --brand-gradient: linear-gradient(135deg, #00D285 0%, #00B4D8 100%);
            --card-shadow: 0 10px 30px -5px rgba(15, 43, 92, 0.07);
            --card-hover-shadow: 0 20px 40px -10px rgba(15, 43, 92, 0.15);
        }
        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        .gradient-brand-bg {
            background: linear-gradient(135deg, #00D285 0%, #00B4D8 100%);
        }
        .gradient-brand-text {
            background: linear-gradient(135deg, #00D285 0%, #00B4D8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-bg {
            background: linear-gradient(135deg, rgba(10, 17, 40, 0.94) 0%, rgba(15, 43, 92, 0.92) 100%), url('/assets/images/ef82d3788b89f541.png') center/cover no-repeat;
        }
        .pattern-bg {
            background-color: #F8FAFC;
            background-image: radial-gradient(#E2E8F0 1px, transparent 1px);
            background-size: 24px 24px;
        }
        .badge-pill {
            display: inline-flex;
            align-items: center;
            padding: 0.35rem 0.95rem;
            border-radius: 9999px;
            font-size: 0.8125rem;
            font-weight: 600;
            background: rgba(0, 210, 133, 0.1);
            color: #00A86B;
            border: 1px solid rgba(0, 210, 133, 0.25);
        }
        .btn-gradient {
            background: linear-gradient(135deg, #00D285 0%, #00B4D8 100%);
            color: #FFFFFF;
            font-weight: 600;
            transition: all 0.25s ease-in-out;
            box-shadow: 0 4px 15px rgba(0, 180, 216, 0.25);
        }
        .btn-gradient:hover {
            opacity: 0.95;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 180, 216, 0.35);
        }
        .card-custom {
            border-radius: 20px;
            background: #FFFFFF;
            border: 1px solid #EEF2F6;
            box-shadow: var(--card-shadow);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--card-hover-shadow);
            border-color: #BAE6FD;
        }