:root {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #1f2329;
  background: #f5f7fa;
}

* {
  box-sizing: border-box;
}

html,
body,
#app {
  margin: 0;
  min-height: 100%;
  height: 100%;
}

.tag-page {
  display: flex;
  height: 100vh;
  overflow: hidden;
  background: #f5f7fa;
}

.tag-page.chart-only {
  display: block;
  background: #ffffff;
}

.tag-page.chart-only .tag-chart {
  width: 100vw;
  height: 100vh;
}

.sidebar {
  width: 320px;
  min-width: 320px;
  height: 100%;
  display: flex;
  flex-direction: column;
  border-right: 1px solid #e3e8ef;
  background: #ffffff;
}

.sidebar-head {
  padding: 18px 18px 10px;
}

.sidebar-head h1 {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
}

.sidebar-head p {
  margin: 6px 0 0;
  font-size: 12px;
  color: #7a8494;
}

.summary {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0 18px 12px;
}

.summary span {
  padding: 3px 8px;
  border-radius: 999px;
  background: #eef3fb;
  color: #35507a;
  font-size: 11px;
}

.filters {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 0 18px 12px;
  border-bottom: 1px solid #eef1f5;
}

.filters label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 11px;
  color: #7a8494;
}

.filters label:first-child {
  grid-column: 1 / -1;
}

.filters select {
  height: 30px;
  padding: 0 8px;
  border: 1px solid #dde3ea;
  border-radius: 6px;
  background: #ffffff;
  color: #303744;
  font-size: 12px;
  outline: none;
}

.filters select:focus {
  border-color: #6b9cf5;
}

.label-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.label-item {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 100%;
  padding: 9px 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.label-item:hover {
  background: #f3f6fb;
}

.label-item.active {
  border-color: #bcd2fb;
  background: #eef4ff;
}

.label-title {
  font-size: 12px;
  color: #303744;
  line-height: 1.35;
}

.label-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  color: #8a94a6;
}

.label-meta em {
  font-style: normal;
  padding: 1px 6px;
  border-radius: 999px;
  background: #eef1f5;
  color: #5b6472;
}

.label-meta em.stage-异常 {
  background: #fff1e6;
  color: #c26a00;
}

.label-meta em.stage-严重异常 {
  background: #ffe9e9;
  color: #c62828;
}

.chart-pane {
  position: relative;
  flex: 1;
  min-width: 0;
  height: 100%;
  background: #ffffff;
}

.tag-chart {
  width: 100%;
  height: 100%;
}

.chart-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  padding: 8px 14px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  color: #6b7280;
  font-size: 12px;
  box-shadow: 0 4px 16px rgba(20, 34, 56, 0.08);
}

.empty-state,
.empty-list {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 120px;
  color: #8a94a6;
  font-size: 12px;
}