/* roulang page: index */
:root {
            --brand-primary: #1e40af;
            --brand-secondary: #0284c7;
            --brand-dark: #0f172a;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --bg-light: #f8fafc;
            --bg-alt: #f1f5f9;
        }

        body {
            color: var(--text-main);
            background-color: #ffffff;
            font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        .clip-slant {
            clip-path: polygon(0 0, 100% 0, 100% calc(100% - 2.5rem), 0 100%);
        }

        .glass-header {
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .badge-glow {
            box-shadow: 0 0 15px rgba(16, 185, 129, 0.25);
        }

        .card-hover-lift {
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .card-hover-lift:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 25px -5px rgba(2, 132, 199, 0.08), 0 8px 10px -6px rgba(2, 132, 199, 0.04);
        }

        .accordion-content {
            transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
            max-height: 0;
            overflow: hidden;
            opacity: 0;
        }
        .accordion-content.active {
            max-height: 260px;
            opacity: 1;
        }

        .custom-scrollbar::-webkit-scrollbar {
            width: 6px;
        }
        .custom-scrollbar::-webkit-scrollbar-thumb {
            background: #cbd5e1;
            border-radius: 9999px;
        }