/* roulang page: index */
:root {
            --brand-primary: #0F3A3A;
            --brand-dark: #0A1F1F;
            --brand-gold: #C59B27;
            --brand-emerald: #10B981;
            --bg-warm: #F8F9FA;
            --text-dark: #1E293B;
            --text-muted: #64748B;
            --border-line: #E2E8F0;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Inter", sans-serif;
            background-color: var(--bg-warm);
            color: var(--text-dark);
            overflow-x: hidden;
            line-height: 1.6;
        }
        .hero-banner-overlay {
            background: linear-gradient(180deg, rgba(10, 31, 31, 0.88) 0%, rgba(15, 58, 58, 0.75) 50%, rgba(10, 31, 31, 0.95) 100%);
        }
        .cta-gradient-bg {
            background: radial-gradient(circle at 80% 20%, #1c5252 0%, #0F3A3A 60%, #0A1F1F 100%);
        }
        .card-custom {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 30px -10px rgba(15, 58, 58, 0.12);
        }
        .badge-gold {
            background-color: rgba(197, 155, 39, 0.15);
            color: #C59B27;
            border: 1px solid rgba(197, 155, 39, 0.35);
        }
        .btn-gold {
            background-color: #C59B27;
            color: #FFFFFF;
            transition: all 0.25s ease;
        }
        .btn-gold:hover {
            background-color: #AF8820;
            box-shadow: 0 4px 14px rgba(197, 155, 39, 0.35);
        }
        .btn-emerald {
            background-color: #10B981;
            color: #FFFFFF;
            transition: all 0.25s ease;
        }
        .btn-emerald:hover {
            background-color: #059669;
            box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
        }
        .touch-target {
            min-height: 44px;
            min-width: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }