/* roulang page: index */
:root {
            --primary: #10B981;
            --primary-hover: #059669;
            --accent: #06B6D4;
            --bg-dark: #0D1117;
            --bg-card: #161B22;
            --bg-slate: #1E293B;
            --text-main: #0F172A;
            --text-light: #F1F5F9;
            --text-muted: #64748B;
            --border-dark: rgba(255, 255, 255, 0.08);
            --border-light: #E2E8F0;
        }

        html {
            scroll-behavior: smooth;
            font-family: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

        /* 极简发光与悬停微动效 */
        .glow-effect {
            box-shadow: 0 0 25px rgba(16, 185, 129, 0.15);
        }
        
        .card-hover {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-hover:hover {
            transform: translateY(-4px);
            border-color: rgba(16, 185, 129, 0.4);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
        }

        .btn-modern {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .btn-modern:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
        }

        /* FAQ 手风琴动画 */
        details summary::-webkit-details-marker {
            display: none;
        }
        details[open] summary svg {
            transform: rotate(180deg);
        }

        /* 自定义滚动条 */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #0D1117;
        }
        ::-webkit-scrollbar-thumb {
            background: #1E293B;
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #334155;
        }