/* roulang page: index */
:root {
            --primary: #FF5E1E;
            --primary-hover: #FF8A00;
            --dark-base: #111927;
            --accent-cyan: #00E5FF;
            --border-soft: #E2E8F0;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: #FAFAFC;
            color: #1E293B;
            overflow-x: hidden;
        }
        .btn-gradient-primary {
            background: linear-gradient(135deg, #FF5E1E 0%, #FF8A00 100%);
            transition: all 0.25s ease-in-out;
        }
        .btn-gradient-primary:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 10px 20px -5px rgba(255, 94, 30, 0.35);
        }
        .badge-cyan {
            background: rgba(0, 229, 255, 0.12);
            color: #009BB0;
            border: 1px solid rgba(0, 229, 255, 0.4);
        }
        .badge-dark-cyan {
            background: rgba(0, 229, 255, 0.15);
            color: #00E5FF;
            border: 1px solid rgba(0, 229, 255, 0.3);
        }
        .card-custom {
            background: #FFFFFF;
            border: 1px solid #F1F5F9;
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 30px -10px rgba(17, 25, 39, 0.07);
            border-color: #FED7AA;
        }
        details summary::-webkit-details-marker {
            display: none;
        }