.guid-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.5rem 0.75rem;
            margin-bottom: 0.4rem;
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-family: 'Courier New', Courier, monospace;
            font-size: 1rem;
            transition: background 0.1s ease;
        }
        .guid-item:hover {
            background-color: #f0f7ff;
            border-color: var(--primary-color);
        }
        .guid-item .copy-single {
            color: var(--primary-color);
            opacity: 0.6;
            font-size: 1.1rem;
            cursor: pointer;
        }
        .guid-item .copy-single:hover {
            opacity: 1;
            transform: scale(1.1);
        }
        .guid-list-container {
            max-height: 400px;
            overflow-y: auto;
            background-color: #f8f9fa;
            padding: 1rem;
            border-radius: 8px;
            border: 1px solid #e9ecef;
        }
        .spec-table {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0,0,0,0.03);
        }
        .version-badge {
            background-color: rgba(70, 130, 180, 0.1);
            color: var(--primary-color);
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
        }
        .rfc-ref {
            background-color: #f2f0e6;
            border-left: 4px solid #a37c45;
        }
        .btn-group-custom {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
        }