/* roulang page: index */
:root {
            --primary: #1e1b4b;
            --accent: #10b981;
            --cta: #f59e0b;
            --bg-light: #f8fafc;
            --text-main: #0f172a;
            --text-body: #334155;
            --text-muted: #64748b;
            --card-border: #e2e8f0;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
            color: var(--text-body);
            background-color: var(--bg-light);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

        .hero-bg-overlay {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(30, 27, 75, 0.88) 100%);
        }

        .dark-section-bg {
            background-color: #0f172a;
        }

        .card-custom {
            background: #ffffff;
            border: 1px solid var(--card-border);
            border-radius: 1rem;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 32px -8px rgba(15, 23, 42, 0.08);
            border-color: #cbd5e1;
        }

        .btn-cta {
            background-color: var(--cta);
            color: #ffffff;
            transition: all 0.25s ease;
        }
        .btn-cta:hover {
            background-color: #d97706;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px -4px rgba(245, 158, 11, 0.4);
        }

        .btn-mint {
            background-color: var(--accent);
            color: #ffffff;
            transition: all 0.25s ease;
        }
        .btn-mint:hover {
            background-color: #059669;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px -4px rgba(16, 185, 129, 0.35);
        }

        .btn-outline-white {
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #ffffff;
            backdrop-filter: blur(8px);
            transition: all 0.25s ease;
        }
        .btn-outline-white:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.1);
        }

        /* 隐藏滚动条 */
        .no-scrollbar::-webkit-scrollbar {
            display: none;
        }
        .no-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }