/**
 * 框架：57 · 网络架构图 网络节点高亮 (Global SD-WAN Network Topology)
 * 实时节点高亮、专线拓扑连线、骨干链路负载与微秒级延迟探测
 */

.topology-section-wrapper {
  position: relative;
  width: 100%;
  margin: 2.5rem 0;
}

.network-topology-diagram {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: 20px;
  backdrop-filter: blur(20px);
  padding: 2rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), inset 0 0 30px rgba(0, 240, 255, 0.05);
  position: relative;
  overflow: hidden;
}

/* 顶部过滤器与控制台 */
.topology-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.topology-title-group h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: #F8FAFC;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.topology-status-live {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: #10B981;
  background: rgba(16, 185, 129, 0.12);
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.topology-status-live .pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #10B981;
  box-shadow: 0 0 8px #10B981;
  animation: liveBlink 1.8s infinite;
}

@keyframes liveBlink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.topology-filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #94A3B8;
  padding: 0.45rem 1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.25s ease;
}

.filter-btn:hover {
  color: #F8FAFC;
  border-color: rgba(0, 240, 255, 0.4);
}

.filter-btn.active {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.2), rgba(124, 58, 237, 0.2));
  color: #00F0FF;
  border-color: #00F0FF;
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.2);
}

/* 拓扑主视觉舞台 */
.topology-stage {
  position: relative;
  min-height: 420px;
  background: radial-gradient(circle at center, rgba(30, 27, 75, 0.35) 0%, rgba(15, 23, 42, 0) 75%);
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 交互式 SVG 连线层 */
.topology-svg-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.topology-link {
  stroke: rgba(0, 240, 255, 0.2);
  stroke-width: 1.5;
  stroke-dasharray: 4, 4;
  transition: all 0.35s ease;
}

.topology-link.active-link {
  stroke: #00F0FF;
  stroke-width: 2.5;
  stroke-dasharray: none;
  filter: drop-shadow(0 0 6px #00F0FF);
  animation: linkPulse 2s infinite ease-in-out;
}

@keyframes linkPulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

/* 节点容器网格 */
.topology-nodes-grid {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 420px;
}

/* 单个节点组件 */
.topology-node {
  position: absolute;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), z-index 0.3s;
  z-index: 10;
  padding: 8px;
}

.topology-node:hover,
.topology-node.is-active {
  transform: translate(-50%, -50%) scale(1.15);
  z-index: 30;
}

.node-pin-ring {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(11, 15, 25, 0.95);
  border: 2px solid rgba(0, 240, 255, 0.5);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  position: relative;
  transition: all 0.3s ease;
}

.topology-node.is-active .node-pin-ring {
  border-color: #00F0FF;
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.8), inset 0 0 8px rgba(0, 240, 255, 0.5);
  background: rgba(0, 240, 255, 0.15);
}

.node-pulse-beacon {
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  border-radius: 50%;
  border: 1.5px solid #00F0FF;
  animation: beaconWave 2.4s cubic-bezier(0.24, 0, 0.38, 1) infinite;
  opacity: 0;
  pointer-events: none;
}

@keyframes beaconWave {
  0% { transform: scale(0.85); opacity: 0.8; }
  100% { transform: scale(1.8); opacity: 0; }
}

.node-label-box {
  margin-top: 6px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 3px 8px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  white-space: nowrap;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
  transition: all 0.25s ease;
}

.topology-node.is-active .node-label-box {
  border-color: #00F0FF;
  background: rgba(8, 20, 36, 0.95);
  color: #00F0FF;
}

.node-city {
  font-weight: 600;
  color: #E2E8F0;
}

.node-ping-badge {
  font-family: 'JetBrains Mono', Consolas, monospace;
  font-size: 0.7rem;
  padding: 1px 5px;
  border-radius: 4px;
}

.ping-ultra-low {
  background: rgba(16, 185, 129, 0.2);
  color: #34D399;
}

.ping-low {
  background: rgba(59, 130, 246, 0.2);
  color: #60A5FA;
}

.ping-mid {
  background: rgba(245, 158, 11, 0.2);
  color: #FBBF24;
}

/* 底部遥测详情卡片 */
.topology-telemetry-card {
  margin-top: 1.8rem;
  background: rgba(11, 15, 25, 0.85);
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: 12px;
  padding: 1.25rem 1.75rem;
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr 1.2fr;
  align-items: center;
  gap: 1.25rem;
}

.telemetry-node-info h4 {
  font-size: 1.15rem;
  color: #F8FAFC;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.3rem;
}

.telemetry-node-info p {
  font-size: 0.82rem;
  color: #94A3B8;
}

.telemetry-item-label {
  font-size: 0.75rem;
  color: #64748B;
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}

.telemetry-item-value {
  font-size: 0.95rem;
  font-weight: 700;
  color: #F1F5F9;
  font-family: 'JetBrains Mono', monospace;
}

.telemetry-actions {
  display: flex;
  justify-content: flex-end;
}

.ping-test-trigger-btn {
  background: linear-gradient(135deg, #00F0FF, #3B82F6);
  color: #070A13;
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1.1rem;
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
}

.ping-test-trigger-btn:hover {
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.6);
  transform: translateY(-2px);
}

/* 响应式调整 */
@media (max-width: 900px) {
  .topology-telemetry-card {
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
  .telemetry-actions {
    grid-column: span 2;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .network-topology-diagram {
    padding: 1rem;
  }
  .topology-stage {
    min-height: 380px;
  }
  .topology-telemetry-card {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .telemetry-node-info h4 {
    justify-content: center;
  }
  .telemetry-actions {
    grid-column: span 1;
  }
}