/* 全局样式 */
:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #0d1226;
  --bg-card: #111827;
  --bg-sidebar: #080c18;
  --border-color: #1e3a5f;
  --border-glow: #1e5fa0;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-yellow: #f59e0b;
  --accent-red: #ef4444;
  --accent-purple: #8b5cf6;
  --sidebar-width: 260px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
  display: flex;
}

/* 侧边栏 */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100vh;
  flex-shrink: 0;
  overflow-y: auto;
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 2px; }

.sidebar-header {
  padding: 20px 16px 16px;
  border-bottom: 1px solid var(--border-color);
  background: linear-gradient(180deg, #0f1724 0%, var(--bg-sidebar) 100%);
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #1e40af, #0891b2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 0 15px rgba(59,130,246,0.4);
}

.logo-text { font-size: 14px; font-weight: 700; color: var(--text-primary); line-height: 1.3; }
.logo-sub { font-size: 11px; color: var(--text-muted); }

.sidebar-nav { padding: 8px 0; flex: 1; }

.nav-item {
  cursor: pointer;
  border-radius: 0;
  transition: all 0.2s;
}

.nav-item-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  cursor: pointer;
  transition: all 0.2s;
  border-left: 3px solid transparent;
}

.nav-item-header:hover {
  background: rgba(59,130,246,0.08);
  border-left-color: var(--accent-blue);
}

.nav-item-header.active {
  background: rgba(59,130,246,0.12);
  border-left-color: var(--accent-blue);
}

.nav-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav-label {
  flex: 1;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.4;
}

.nav-item-header.active .nav-label, .nav-item-header:hover .nav-label {
  color: var(--text-primary);
}

.nav-arrow {
  font-size: 10px;
  color: var(--text-muted);
  transition: transform 0.3s;
}

.nav-arrow.open { transform: rotate(180deg); }

.nav-subitems {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s ease;
  background: rgba(0,0,0,0.2);
}

.nav-subitems.open { max-height: 300px; }

.nav-subitem {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px 8px 46px;
  cursor: pointer;
  font-size: 12px;
  color: var(--text-muted);
  transition: all 0.2s;
  border-left: 3px solid transparent;
}

.nav-subitem:hover {
  background: rgba(59,130,246,0.06);
  color: var(--text-secondary);
  border-left-color: var(--accent-cyan);
}

.nav-subitem.active {
  background: rgba(6,182,212,0.1);
  color: var(--accent-cyan);
  border-left-color: var(--accent-cyan);
}

.nav-subitem::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

/* 主内容区 */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.topbar {
  height: 56px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  flex-shrink: 0;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.breadcrumb-item { color: var(--text-muted); }
.breadcrumb-sep { color: var(--text-muted); font-size: 12px; }
.breadcrumb-current { color: var(--text-primary); font-weight: 500; }

.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.3);
  color: var(--accent-green);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.page-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

.page-content::-webkit-scrollbar { width: 6px; }
.page-content::-webkit-scrollbar-track { background: transparent; }
.page-content::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }

/* 页面标题 */
.page-header {
  margin-bottom: 24px;
}

.page-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-title-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.page-desc {
  margin-top: 6px;
  font-size: 13px;
  color: var(--text-muted);
  padding-left: 48px;
}

/* 卡片 */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  transition: border-color 0.2s;
}

.card:hover { border-color: var(--border-glow); }

.card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title-dot {
  width: 3px;
  height: 14px;
  border-radius: 2px;
}

/* Grid 布局 */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 16px; }

/* 统计卡片 */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all 0.2s;
  cursor: pointer;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.stat-info { flex: 1; }
.stat-value { font-size: 28px; font-weight: 700; color: var(--text-primary); line-height: 1; }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.stat-trend { font-size: 12px; margin-top: 4px; }
.trend-up { color: var(--accent-green); }
.trend-down { color: var(--accent-red); }

/* 表格 */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th {
  background: rgba(255,255,255,0.04);
  padding: 10px 14px;
  text-align: left;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid rgba(30,58,95,0.5);
  color: var(--text-secondary);
  vertical-align: middle;
}

.data-table tr:hover td { background: rgba(59,130,246,0.04); }

/* 状态标签 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 500;
}

.badge-success { background: rgba(16,185,129,0.15); color: #10b981; border: 1px solid rgba(16,185,129,0.3); }
.badge-warning { background: rgba(245,158,11,0.15); color: #f59e0b; border: 1px solid rgba(245,158,11,0.3); }
.badge-danger { background: rgba(239,68,68,0.15); color: #ef4444; border: 1px solid rgba(239,68,68,0.3); }
.badge-info { background: rgba(59,130,246,0.15); color: #3b82f6; border: 1px solid rgba(59,130,246,0.3); }
.badge-cyan { background: rgba(6,182,212,0.15); color: #06b6d4; border: 1px solid rgba(6,182,212,0.3); }
.badge-purple { background: rgba(139,92,246,0.15); color: #8b5cf6; border: 1px solid rgba(139,92,246,0.3); }

/* 进度条 */
.progress-bar {
  height: 6px;
  background: rgba(255,255,255,0.08);
  border-radius: 3px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 1s ease;
}

/* 搜索栏和工具栏 */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.search-input {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 12px;
  flex: 1;
  min-width: 200px;
  transition: border-color 0.2s;
}

.search-input:focus-within { border-color: var(--accent-blue); }
.search-input input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 13px;
  flex: 1;
}

.search-input input::placeholder { color: var(--text-muted); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  font-weight: 500;
}

.btn-primary { background: var(--accent-blue); color: #fff; }
.btn-primary:hover { background: #2563eb; transform: translateY(-1px); }
.btn-outline { background: transparent; border: 1px solid var(--border-color); color: var(--text-secondary); }
.btn-outline:hover { border-color: var(--accent-blue); color: var(--accent-blue); }
.btn-danger { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: var(--accent-red); }
.btn-success { background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.3); color: var(--accent-green); }

.select-input {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 12px;
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s;
}

.select-input:focus { border-color: var(--accent-blue); }
.select-input option { background: var(--bg-card); }

/* 图表容器 */
.chart-container {
  position: relative;
  height: 200px;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding-bottom: 24px;
}

.chart-bar {
  flex: 1;
  border-radius: 4px 4px 0 0;
  position: relative;
  transition: opacity 0.2s;
  cursor: pointer;
  min-width: 20px;
}

.chart-bar:hover { opacity: 0.8; }

.chart-label {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
}

.chart-value {
  position: absolute;
  top: -18px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* 拓扑图 */
.topo-container {
  position: relative;
  width: 100%;
  height: 400px;
  overflow: hidden;
  background: radial-gradient(ellipse at center, rgba(30,58,95,0.2) 0%, transparent 70%);
}

.topo-node {
  position: absolute;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s;
  text-align: center;
}

.topo-node:hover { transform: scale(1.1); }

.topo-node-inner {
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  border: 2px solid;
}

.topo-label {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 4px;
  white-space: nowrap;
}

/* SVG 连线 */
.topo-svg {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}

/* 环形图 */
.donut-chart {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* 列表项 */
.list-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  margin-bottom: 8px;
  transition: all 0.2s;
  cursor: pointer;
}

.list-item:hover {
  border-color: var(--border-glow);
  background: rgba(59,130,246,0.04);
}

/* 信息提示框 */
.info-box {
  background: rgba(59,130,246,0.08);
  border: 1px solid rgba(59,130,246,0.25);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.info-box-icon { color: var(--accent-blue); flex-shrink: 0; font-size: 14px; }

/* 表单元素 */
.form-group { margin-bottom: 16px; }
.form-label { font-size: 13px; color: var(--text-muted); margin-bottom: 6px; display: block; }
.form-input {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 12px;
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s;
}

.form-input:focus { border-color: var(--accent-blue); }

/* 分割线 */
.divider { height: 1px; background: var(--border-color); margin: 16px 0; }

/* 空状态 */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: var(--text-muted);
  text-align: center;
}

.empty-state-icon { font-size: 48px; margin-bottom: 16px; opacity: 0.4; }
.empty-state-text { font-size: 14px; }

/* 响应码分布 */
.response-bar {
  display: flex;
  height: 8px;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 8px;
}

/* 热力图 */
.heat-grid {
  display: grid;
  grid-template-columns: repeat(24, 1fr);
  gap: 2px;
}

.heat-cell {
  aspect-ratio: 1;
  border-radius: 2px;
  cursor: pointer;
  transition: opacity 0.2s;
}

.heat-cell:hover { opacity: 0.7; }

/* 分页 */
.pagination {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  justify-content: flex-end;
}

.page-btn {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all 0.2s;
  background: transparent;
}

.page-btn:hover, .page-btn.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: #fff;
}

/* 标签页 */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
}

.tab {
  padding: 10px 20px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
  white-space: nowrap;
}

.tab:hover { color: var(--text-secondary); }
.tab.active { color: var(--accent-cyan); border-bottom-color: var(--accent-cyan); }

/* 动画 */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-enter { animation: fadeInUp 0.3s ease; }

/* 扫描动画 */
@keyframes scanLine {
  0% { top: 0; }
  100% { top: 100%; }
}

.scan-animation {
  position: relative;
  overflow: hidden;
}

.scan-line {
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  animation: scanLine 2s linear infinite;
}

/* 折叠面板 */
.collapse-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  cursor: pointer;
  background: rgba(255,255,255,0.03);
  border-radius: 8px;
  transition: background 0.2s;
}

.collapse-header:hover { background: rgba(255,255,255,0.06); }

.collapse-body {
  padding: 16px;
  border-top: 1px solid var(--border-color);
}

/* 开关 */
.toggle {
  width: 36px;
  height: 20px;
  border-radius: 10px;
  position: relative;
  cursor: pointer;
  transition: background 0.3s;
  flex-shrink: 0;
}

.toggle.on { background: var(--accent-blue); }
.toggle.off { background: rgba(255,255,255,0.15); }

.toggle::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: white;
  top: 2px;
  transition: left 0.3s;
  box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.toggle.on::after { left: 18px; }
.toggle.off::after { left: 2px; }

/* 侧边栏底部 */
.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border-color);
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
}