.route-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .route-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--gradient-accent);
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .route-card:hover::before {
            opacity: 1;
        }

        .route-card:hover {
            border-color: var(--border-accent);
            transform: translateY(-3px);
        }

        .route-icon {
            font-size: 32px;
            margin-bottom: 12px;
            display: block;
        }

        .route-card h4 {
            font-size: 15px;
            margin-bottom: 4px;
        }

        .route-tag {
            font-family: 'JetBrains Mono', monospace;
            font-size: 10px;
            color: var(--accent);
            letter-spacing: 1px;
            margin-bottom: 10px;
            display: block;
        }

        .route-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Detail sections */
        .route-detail {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            margin-bottom: 32px;
        }

        .route-detail h3 {
            font-size: 20px;
            margin-bottom: 8px;
        }

        .route-detail .subtitle {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 20px;
            font-style: italic;
        }

        .route-detail p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 16px;
        }

        .route-detail p:last-child {
            margin-bottom: 0;
        }

        /* Table style */
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .data-table th {
            font-family: 'JetBrains Mono', monospace;
            font-size: 10px;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--text-muted);
            text-align: left;
            padding: 10px 12px;
            border-bottom: 1px solid var(--border-accent);
        }

        .data-table td {
            padding: 10px 12px;
            border-bottom: 1px solid var(--border-subtle);
            line-height: 1.6;
        }

        .data-table tr:hover td {
            background: rgba(192, 132, 252, 0.03);
        }

        /* Architecture diagram */
        .arch-box {
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 32px;
            text-align: center;
            margin: 40px 0;
        }

        .arch-flow {
            font-family: 'JetBrains Mono', monospace;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .arch-node {
            padding: 12px 20px;
            border-radius: 10px;
            font-weight: 600;
        }

        .arch-node.human {
            background: var(--q1-glow);
            color: var(--q1-color);
            border: 1px solid rgba(239, 68, 68, 0.2);
        }

        .arch-node.phone {
            background: var(--q3-glow);
            color: var(--q3-color);
            border: 1px solid rgba(245, 158, 11, 0.2);
        }

        .arch-node.machine {
            background: var(--q4-glow);
            color: var(--q4-color);
            border: 1px solid rgba(99, 102, 241, 0.2);
        }

        .arch-label {
            font-size: 11px;
            color: var(--text-muted);
            margin-top: 12px;
            text-align: center;
        }