/* roulang page: index */
:root {
            --bg-main: #0B0F17;
            --bg-card: rgba(17, 24, 39, 0.75);
            --border-glow: rgba(124, 58, 237, 0.3);
            --text-high: #F9FAFB;
            --text-muted: #9CA3AF;
        }

        body {
            background-color: var(--bg-main);
            color: var(--text-high);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
        }

        .hero-pattern {
            background-image: radial-gradient(rgba(124, 58, 237, 0.15) 1px, transparent 1px), radial-gradient(rgba(16, 185, 129, 0.08) 1px, transparent 1px);
            background-size: 32px 32px;
            background-position: 0 0, 16px 16px;
        }

        .glass-panel {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .glass-panel:hover {
            border-color: rgba(124, 58, 237, 0.45);
            transform: translateY(-2px);
            box-shadow: 0 10px 25px -5px rgba(124, 58, 237, 0.2);
            transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .text-glow {
            text-shadow: 0 0 24px rgba(124, 58, 237, 0.6);
        }

        .gradient-border-top {
            position: relative;
        }
        .gradient-border-top::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, #7C3AED, #10B981, transparent);
        }