/* roulang page: index */
:root {
            --primary: #0F1F1C;
            --accent: #10B981;
            --accent-glow: #06D6A0;
            --bg-light: #F8FAFC;
            --bg-dark: #091312;
            --text-dark: #0F172A;
            --text-muted: #475569;
            --border-light: rgba(15, 23, 42, 0.08);
        }
        html { scroll-behavior: smooth; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; }
        .hero-pattern {
            background-image: linear-gradient(to bottom, rgba(15, 31, 28, 0.94), rgba(9, 19, 18, 0.97)), url('/assets/images/8006b8dde8d1d293.webp');
            background-size: cover;
            background-position: center;
        }
        .deep-dark-section {
            background-color: var(--bg-dark);
            background-image: radial-gradient(rgba(16, 185, 129, 0.08) 1px, transparent 1px);
            background-size: 32px 32px;
        }
        .card-custom {
            background: #ffffff;
            border: 1px solid var(--border-light);
            box-shadow: 0 4px 24px -2px rgba(15, 23, 42, 0.04);
            transition: all 0.25s ease-in-out;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            border-color: rgba(16, 185, 129, 0.35);
            box-shadow: 0 12px 32px -4px rgba(15, 23, 42, 0.08);
        }
        .card-dark-custom {
            background: rgba(15, 31, 28, 0.6);
            border: 1px solid rgba(16, 185, 129, 0.15);
            transition: all 0.25s ease-in-out;
        }
        .card-dark-custom:hover {
            border-color: var(--accent);
            background: rgba(15, 31, 28, 0.85);
        }