/* roulang page: index */
:root {
            --bg-base: #0B0F17;
            --bg-deep: #070A0F;
            --bg-surface: #141A24;
            --bg-elevated: #1B2332;
            --brand-purple: #7928CA;
            --brand-blue: #0070F3;
            --accent-gold: #F5A623;
            --accent-teal: #50E3C2;
            --text-title: #F4F6F8;
            --text-body: #94A3B8;
            --text-sub: #64748B;
            --border-glass: rgba(255, 255, 255, 0.08);
            --border-glow: rgba(121, 40, 202, 0.3);
        }

        body {
            background-color: var(--bg-base);
            color: var(--text-body);
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            line-height: 1.75;
            overflow-x: hidden;
        }

        h1, h2, h3, h4, h5, h6 {
            color: var(--text-title);
            line-height: 1.3;
            font-weight: 700;
        }

        .gradient-brand {
            background: linear-gradient(135deg, var(--brand-purple) 0%, var(--brand-blue) 100%);
        }

        .gradient-text {
            background: linear-gradient(135deg, #A855F7 0%, #3B82F6 50%, #50E3C2 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .glass-card:hover {
            border-color: rgba(121, 40, 202, 0.45);
            transform: translateY(-4px);
            box-shadow: 0 16px 36px -12px rgba(121, 40, 202, 0.2);
        }

        .hero-pattern {
            background-image: radial-gradient(rgba(121, 40, 202, 0.15) 1px, transparent 1px);
            background-size: 32px 32px;
        }

        .cta-glow-btn {
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, #7928CA, #0070F3);
            transition: all 0.3s ease;
        }

        .cta-glow-btn:hover {
            box-shadow: 0 0 25px rgba(121, 40, 202, 0.6);
            transform: translateY(-2px);
        }

        html {
            scroll-behavior: smooth;
        }

        /* 自定义滚动条 */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #070A0F;
        }
        ::-webkit-scrollbar-thumb {
            background: #1E293B;
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #7928CA;
        }