/* --- 为 RS-DC8900-64OC2XS Features 模块添加作用域 ID 标识 --- */
    #module-rs-dc8900-64oc2xs-features * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    
    #module-rs-dc8900-64oc2xs-features {
        font-family: 'Inter', -apple-system, sans-serif;
        background: #f5f7fa;
        color: #1a2639;
        padding: 40px 20px;
        display: flex;
        justify-content: center;
    }

    #module-rs-dc8900-64oc2xs-features .container {
        max-width: 1200px;
        margin: 0 auto;
        background: #ffffff;
        border-radius: 16px;
        box-shadow: 0 4px 24px rgba(0,0,0,0.04);
        border: 1px solid #e9edf4;
        padding: 40px;
    }

    #module-rs-dc8900-64oc2xs-features .section-header {
        text-align: center;
        margin-bottom: 40px;
    }
    #module-rs-dc8900-64oc2xs-features .section-header h2 {
        font-size: 28px;
        font-weight: 700;
        color: #0a1929;
    }
    #module-rs-dc8900-64oc2xs-features .section-header p {
        font-size: 15px;
        color: #64748b;
        margin-top: 8px;
    }

    #module-rs-dc8900-64oc2xs-features .highlights-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    #module-rs-dc8900-64oc2xs-features .highlight-card {
        background: #ffffff;
        border-radius: 12px;
        border: 1px solid #e3e9f2;
        box-shadow: 0 2px 8px rgba(0,0,0,0.02);
        transition: transform 0.2s ease, box-shadow 0.2s ease;
        display: flex;
        flex-direction: column;
    }
    #module-rs-dc8900-64oc2xs-features .highlight-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 8px 24px rgba(0, 32, 64, 0.06);
    }

    /* Card Header */
    #module-rs-dc8900-64oc2xs-features .card-header {
        padding: 20px 24px 12px 24px;
        background: #f2f6fc;
        border-bottom: 1px solid #e6edf6;
        border-radius: 12px 12px 0 0;
    }
    #module-rs-dc8900-64oc2xs-features .card-header h3 {
        font-size: 20px;
        font-weight: 700;
        color: #0a1929;
        margin-bottom: 4px;
    }
    #module-rs-dc8900-64oc2xs-features .card-header p {
        font-size: 13px;
        color: #556b82;
    }

    /* Graphic Area (Topology & Diagrams) */
    #module-rs-dc8900-64oc2xs-features .graphic-area {
        height: auto;
        min-height: 160px;
        padding: 16px 24px;
        background: #f9fbff;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-wrap: wrap;
    }
    #module-rs-dc8900-64oc2xs-features .node {
        display: flex;
        flex-direction: column;
        align-items: center;
        font-size: 10px;
        font-weight: 600;
        color: #ffffff;
    }
    #module-rs-dc8900-64oc2xs-features .node-box {
        width: 28px;
        height: 28px;
        border-radius: 4px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 4px;
        font-size: 10px;
    }
    #module-rs-dc8900-64oc2xs-features .link-dashed {
        border-top: 2px dashed #94a3b8;
        width: 30px;
        margin: 0 4px;
        position: relative;
    }
    
    /* Topology 1 */
    #module-rs-dc8900-64oc2xs-features .topology-1 {
        display: flex;
        gap: 4px;
        align-items: center;
        flex-wrap: wrap;
        justify-content: center;
    }
    #module-rs-dc8900-64oc2xs-features .node-1 { background: #2b4c8c; }
    #module-rs-dc8900-64oc2xs-features .node-2 { background: #3a8ad5; }
    #module-rs-dc8900-64oc2xs-features .node-3 { background: #d45a3a; }
    
    #module-rs-dc8900-64oc2xs-features .flow-green {
        width: 6px;
        height: 30px;
        background: #22c55e;
        border-radius: 2px;
        position: absolute;
        /* 为 Keyframes 添加独立的动画名，避免冲突 */
        animation: module-rs-dc8900-64oc2xs-features-pulseFlow 1.5s infinite;
    }
    @keyframes module-rs-dc8900-64oc2xs-features-pulseFlow {
        0% { opacity: 0.2; transform: translateY(0); }
        50% { opacity: 1; transform: translateY(-8px); }
        100% { opacity: 0.2; transform: translateY(0); }
    }

    /* Topology 2 */
    #module-rs-dc8900-64oc2xs-features .topology-2 {
        display: flex;
        gap: 16px;
        align-items: center;
        justify-content: center;
        flex-wrap: wrap;
        width: 100%;
    }
    #module-rs-dc8900-64oc2xs-features .redundant-block {
        display: flex;
        gap: 6px;
        background: #eef2f7;
        padding: 8px;
        border-radius: 6px;
    }
    #module-rs-dc8900-64oc2xs-features .power-unit {
        width: 30px;
        height: 30px;
        background: #334155;
        border-radius: 4px;
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 12px;
    }
    #module-rs-dc8900-64oc2xs-features .ai-ecn {
        display: flex;
        flex-direction: column;
        align-items: center;
        color: #1e293b;
    }
    #module-rs-dc8900-64oc2xs-features .ecn-wave {
        width: 60px;
        height: 20px;
        background: linear-gradient(to right, #22c55e 20%, #eab308 50%, #ef4444 80%);
        border-radius: 12px;
        margin-top: 4px;
    }

    /* Topology 3 */
    #module-rs-dc8900-64oc2xs-features .topology-3 {
        display: flex;
        gap: 12px;
        align-items: center;
        justify-content: center;
        flex-wrap: wrap;
        width: 100%;
    }
    #module-rs-dc8900-64oc2xs-features .ztp-flow {
        display: flex;
        flex-direction: column;
        align-items: center;
        background: #f1f5f9;
        padding: 6px 12px;
        border-radius: 8px;
        font-size: 10px;
    }
    #module-rs-dc8900-64oc2xs-features .protocol-stack {
        display: flex;
        gap: 4px;
    }
    #module-rs-dc8900-64oc2xs-features .ip-label {
        background: #3b82f6;
        color: white;
        padding: 2px 8px;
        border-radius: 4px;
        font-size: 10px;
    }

    /* Card Footer */
    #module-rs-dc8900-64oc2xs-features .card-footer {
        padding: 16px 24px 24px 24px;
        border-top: 1px solid #eef2f7;
        flex-grow: 1;
    }
    #module-rs-dc8900-64oc2xs-features .card-footer ul {
        list-style: none;
        padding: 0;
    }
    #module-rs-dc8900-64oc2xs-features .card-footer li {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        font-size: 14px;
        color: #334155;
        line-height: 1.5;
        margin-bottom: 8px;
    }
    #module-rs-dc8900-64oc2xs-features .card-footer li:last-child {
        margin-bottom: 0;
    }
    #module-rs-dc8900-64oc2xs-features .bullet {
        display: inline-block;
        width: 8px;
        height: 8px;
        background: #2563eb;
        border-radius: 50%;
        margin-top: 6px;
        flex-shrink: 0;
    }

    /* Responsive Defaults */
    @media (max-width: 1024px) {
        #module-rs-dc8900-64oc2xs-features .highlights-grid {
            grid-template-columns: 1fr 1fr;
        }
    }
    
    /* Mobile Optimization */
    @media (max-width: 768px) {
        #module-rs-dc8900-64oc2xs-features .container {
            padding: 16px;
        }
        #module-rs-dc8900-64oc2xs-features .highlights-grid {
            grid-template-columns: 1fr;
            gap: 16px;
        }
        #module-rs-dc8900-64oc2xs-features .section-header {
            margin-bottom: 24px;
        }
        #module-rs-dc8900-64oc2xs-features .section-header h2 {
            font-size: 22px;
        }
        
        #module-rs-dc8900-64oc2xs-features .card-header {
            padding: 16px;
        }
        #module-rs-dc8900-64oc2xs-features .card-header h3 {
            font-size: 17px;
        }
        
        #module-rs-dc8900-64oc2xs-features .graphic-area {
            min-height: 120px;
            padding: 12px;
        }
        #module-rs-dc8900-64oc2xs-features .node-box {
            width: 20px;
            height: 20px;
            font-size: 8px;
        }
        #module-rs-dc8900-64oc2xs-features .link-dashed {
            width: 16px;
            margin: 0 2px;
        }
        
        #module-rs-dc8900-64oc2xs-features .power-unit {
            width: 24px;
            height: 24px;
            font-size: 9px;
        }
        #module-rs-dc8900-64oc2xs-features .redundant-block {
            padding: 6px;
            gap: 4px;
        }
        #module-rs-dc8900-64oc2xs-features .ecn-wave {
            width: 40px;
            height: 14px;
        }
        #module-rs-dc8900-64oc2xs-features .ztp-flow {
            padding: 4px 8px;
            font-size: 9px;
        }
        #module-rs-dc8900-64oc2xs-features .ip-label {
            font-size: 8px;
            padding: 2px 6px;
        }
        #module-rs-dc8900-64oc2xs-features .topology-1,
        #module-rs-dc8900-64oc2xs-features .topology-2,
        #module-rs-dc8900-64oc2xs-features .topology-3 {
            gap: 6px;
        }
        
        #module-rs-dc8900-64oc2xs-features .card-footer {
            padding: 16px;
        }
        #module-rs-dc8900-64oc2xs-features .card-footer li {
            font-size: 13px;
        }
    }