/* roulang page: index */
:root {
            --primary: #00F5D4;
            --secondary: #7B2CBF;
            --bg-base: #0A0B10;
            --bg-surface: #12141F;
            --text-main: #FFFFFF;
            --text-muted: #9CA3AF;
        }
        body {
            background-color: var(--bg-base);
            color: #D1D5DB;
            font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
            scroll-behavior: smooth;
        }
        .glow-card {
            background: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.01) 100%);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .glow-card:hover {
            border-color: rgba(0, 245, 212, 0.4);
            box-shadow: 0 10px 30px -10px rgba(0, 245, 212, 0.2);
            transform: translateY(-4px);
        }
        .btn-glow {
            background: linear-gradient(135deg, #00F5D4 0%, #00bbf9 100%);
            color: #0A0B10;
            box-shadow: 0 0 20px rgba(0, 245, 212, 0.3);
            transition: all 0.25s ease;
        }
        .btn-glow:hover {
            box-shadow: 0 0 30px rgba(0, 245, 212, 0.6);
            transform: scale(1.02);
        }
        details summary::-webkit-details-marker {
            display: none;
        }
        details[open] summary svg {
            transform: rotate(180deg);
        }
        details[open] {
            border-color: rgba(0, 245, 212, 0.5);
            background: rgba(18, 20, 31, 0.85);
        }