/* Force Font Awesome icons to stay upright */
    #module-rw-ap620x-features i,
    #module-rw-ap620x-features .fas,
    #module-rw-ap620x-features .far,
    #module-rw-ap620x-features .fab,
    #module-rw-ap620x-features .fa {
        font-style: normal !important;
    }

    #module-rw-ap620x-features * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    #module-rw-ap620x-features {
      font-family: Arial, sans-serif;
      font-size: 16px;
      line-height: 1.7;
      color: #334155;
      max-width: 1200px;
      margin: 0 auto;
      padding: 48px 24px;
    }
    #module-rw-ap620x-features .section-title {
      font-size: 28px;
      font-weight: 700;
      color: #0f172a;
      text-align: left;
      margin-bottom: 40px;
      padding-bottom: 10px;
      border-bottom: 3px solid #2563eb;
      display: inline-flex;
      align-items: center;
      gap: 12px;
    }
    #module-rw-ap620x-features .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }
    #module-rw-ap620x-features .feature-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 12px;
      padding: 32px 24px;
      display: flex;
      flex-direction: column;
      align-items: center;
      transition: all 0.3s ease;
      box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    }
    #module-rw-ap620x-features .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 12px 28px rgba(37, 99, 235, 0.12);
      border-color: #2563eb;
    }
    #module-rw-ap620x-features .feature-header {
      display: flex;
      align-items: center;
      gap: 12px;
      width: 100%;
      margin-bottom: 20px;
    }
    #module-rw-ap620x-features .feature-header i {
      font-size: 26px;
      color: #2563eb;
      flex-shrink: 0;
    }
    #module-rw-ap620x-features .feature-card h3 {
      font-size: 20px;
      font-weight: 700;
      color: #0f172a;
      text-align: left;
      line-height: 1.4;
    }

    /* Common diagram base */
    #module-rw-ap620x-features .feature-diagram {
      width: 100%;
      height: 140px;
      margin-bottom: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
      border-radius: 10px;
      position: relative;
      overflow: hidden;
    }

    /* 1. Wi-Fi 6 Dual Radio Diagram */
    .diag-dual-radio {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 12px;
      width: 85%;
    }
    .diag-dual-radio .wave-row {
      width: 100%;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .diag-dual-radio .wave-label {
      font-size: 11px;
      font-weight: 600;
      color: #475569;
      width: 45px;
      flex-shrink: 0;
    }
    .diag-dual-radio .wave-line {
      flex: 1;
      height: 24px;
      position: relative;
      overflow: hidden;
    }
    .diag-dual-radio .wave-line span {
      position: absolute;
      width: 200%;
      height: 100%;
      background: linear-gradient(90deg, 
        transparent 0%, #2563eb 25%, transparent 50%, #2563eb 75%, transparent 100%);
      background-size: 50% 100%;
      -webkit-mask: radial-gradient(circle at 50% 50%, transparent 0, #000 2px, #000 100%);
      mask: radial-gradient(circle at 50% 50%, transparent 0, #000 2px, #000 100%);
      animation: wave-flow 3s infinite linear;
    }
    .diag-dual-radio .wave-2g span { background-color: #60a5fa; }
    .diag-dual-radio .wave-5g span { background-color: #1d4ed8; }
    @keyframes wave-flow {
      0% { transform: translateX(-50%); }
      100% { transform: translateX(0); }
    }

    /* 2. Multi-Port Fiber-Copper Diagram */
    .diag-ports {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      width: 85%;
    }
    .diag-ports .port-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 6px;
    }
    .diag-ports .port-body {
      width: 36px;
      height: 28px;
      border-radius: 3px;
      background: #475569;
      position: relative;
      animation: port-blink 2s infinite ease-in-out;
    }
    .diag-ports .port-body::before {
      content: "";
      position: absolute;
      top: 8px;
      left: 6px;
      right: 6px;
      height: 12px;
      background: #0f172a;
      border-radius: 2px;
    }
    .diag-ports .port-sfp {
      background: #f59e0b;
      animation-delay: 0.5s;
    }
    .diag-ports .port-sfp::before {
      background: #b45309;
    }
    .diag-ports .port-item:nth-child(2) .port-body { animation-delay: 0.3s; }
    .diag-ports .port-item:nth-child(3) .port-body { animation-delay: 0.6s; }
    @keyframes port-blink {
      0%, 100% { box-shadow: 0 0 0 rgba(37, 99, 235, 0.3); }
      50% { box-shadow: 0 0 10px rgba(37, 99, 235, 0.6); }
    }
    .diag-ports .port-label {
      font-size: 10px;
      color: #475569;
      font-weight: 500;
    }

    /* 3. Local Forwarding & QoS Diagram */
    .diag-forwarding {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      width: 90%;
    }
    .diag-forwarding .ap-node {
      width: 40px;
      height: 40px;
      background: #2563eb;
      border-radius: 6px;
      flex-shrink: 0;
      position: relative;
    }
    .diag-forwarding .ap-node::after {
      content: "AP";
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      color: white;
      font-size: 10px;
      font-weight: 700;
    }
    .diag-forwarding .flow-paths {
      flex: 1;
      height: 60px;
      position: relative;
    }
    .diag-forwarding .flow-line {
      position: absolute;
      height: 3px;
      border-radius: 2px;
      width: 100%;
    }
    .diag-forwarding .flow-ac {
      top: 15px;
      background: #93c5fd;
      animation: flow-move 2.5s infinite linear;
    }
    .diag-forwarding .flow-local {
      bottom: 15px;
      background: #1d4ed8;
      animation: flow-move 2s infinite linear;
    }
    @keyframes flow-move {
      0% { transform: scaleX(0); transform-origin: left; }
      50% { transform: scaleX(1); transform-origin: left; }
      50.01% { transform: scaleX(1); transform-origin: right; }
      100% { transform: scaleX(0); transform-origin: right; }
    }
    .diag-forwarding .end-node {
      width: 40px;
      height: 40px;
      border-radius: 6px;
      flex-shrink: 0;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .diag-forwarding .end-node span {
      height: 18px;
      border-radius: 3px;
      font-size: 9px;
      color: white;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
    }
    .diag-forwarding .end-node .ac-tag { background: #93c5fd; }
    .diag-forwarding .end-node .lan-tag { background: #1d4ed8; }

    /* 4. Security Protection Diagram */
    .diag-security {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 80%;
    }
    .diag-security .shield-core {
      width: 60px;
      height: 70px;
      position: relative;
      animation: shield-pulse 2s infinite ease-in-out;
    }
    .diag-security .shield-core::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 78%;
      background: #2563eb;
      border-radius: 50% 50% 0 0 / 40% 40% 0 0;
    }
    .diag-security .shield-core::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 50%;
      transform: translateX(-50%);
      border-left: 30px solid transparent;
      border-right: 30px solid transparent;
      border-top: 20px solid #2563eb;
    }
    .diag-security .shield-ring {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      border: 2px solid rgba(37, 99, 235, 0.5);
      border-radius: 50%;
      animation: ring-expand 2.5s infinite ease-out;
    }
    .diag-security .ring1 { width: 90px; height: 90px; animation-delay: 0s; }
    .diag-security .ring2 { width: 110px; height: 110px; animation-delay: 0.6s; }
    .diag-security .ring3 { width: 130px; height: 130px; animation-delay: 1.2s; }
    @keyframes shield-pulse {
      0%, 100% { transform: scale(1); }
      50% { transform: scale(1.05); }
    }
    @keyframes ring-expand {
      0% { opacity: 0.8; transform: translate(-50%, -50%) scale(0.8); }
      100% { opacity: 0; transform: translate(-50%, -50%) scale(1.2); }
    }

    /* 5. Deployment Diagram */
    .diag-deployment {
      display: flex;
      align-items: center;
      justify-content: space-around;
      width: 85%;
    }
    .diag-deployment .mount-type {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
      position: relative;
      animation: mount-fade 3s infinite ease-in-out;
    }
    .diag-deployment .mount-ceiling { animation-delay: 0s; }
    .diag-deployment .mount-wall { animation-delay: 1.5s; }
    @keyframes mount-fade {
      0%, 45%, 100% { opacity: 0.4; transform: translateY(0); }
      50%, 95% { opacity: 1; transform: translateY(-3px); }
    }
    .diag-deployment .mount-icon {
      width: 50px;
      height: 40px;
      position: relative;
    }
    .diag-deployment .ceiling-icon::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 6px;
      background: #475569;
      border-radius: 2px;
    }
    .diag-deployment .ceiling-icon::after {
      content: "";
      position: absolute;
      top: 10px;
      left: 50%;
      transform: translateX(-50%);
      width: 36px;
      height: 24px;
      background: #2563eb;
      border-radius: 4px;
    }
    .diag-deployment .wall-icon::before {
      content: "";
      position: absolute;
      left: 0;
      top: 0;
      width: 6px;
      height: 100%;
      background: #475569;
      border-radius: 2px;
    }
    .diag-deployment .wall-icon::after {
      content: "";
      position: absolute;
      left: 12px;
      top: 50%;
      transform: translateY(-50%);
      width: 36px;
      height: 24px;
      background: #2563eb;
      border-radius: 4px;
    }
    .diag-deployment .mount-label {
      font-size: 11px;
      color: #475569;
      font-weight: 600;
    }

    /* 6. Bluetooth IoT Diagram */
    .diag-bluetooth {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 80%;
    }
    .diag-bluetooth .ble-core {
      width: 44px;
      height: 44px;
      background: #2563eb;
      border-radius: 50%;
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-weight: 700;
      font-size: 14px;
    }
    .diag-bluetooth .ble-wave {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      border: 2px solid #3b82f6;
      border-radius: 50%;
      animation: ble-expand 2.5s infinite ease-out;
    }
    .diag-bluetooth .wave1 { width: 60px; height: 60px; animation-delay: 0s; }
    .diag-bluetooth .wave2 { width: 80px; height: 80px; animation-delay: 0.6s; }
    .diag-bluetooth .wave3 { width: 100px; height: 100px; animation-delay: 1.2s; }
    @keyframes ble-expand {
      0% { opacity: 0.8; transform: translate(-50%, -50%) scale(0.7); }
      100% { opacity: 0; transform: translate(-50%, -50%) scale(1.3); }
    }

    /* Feature list */
    #module-rw-ap620x-features .feature-list {
      width: 100%;
      list-style: none;
      padding-left: 0;
    }
    #module-rw-ap620x-features .feature-list li {
      position: relative;
      padding-left: 20px;
      margin-bottom: 8px;
      color: #475569;
      text-align: left;
    }
    #module-rw-ap620x-features .feature-list li::before {
      content: '';
      position: absolute;
      left: 0;
      top: 9px;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #2563eb;
    }

    /* Responsive */
    @media (max-width: 992px) {
      #module-rw-ap620x-features .features-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 576px) {
      #module-rw-ap620x-features .features-grid {
        grid-template-columns: 1fr;
      }
      #module-rw-ap620x-features .section-title {
        font-size: 22px;
      }
    }