:root {
  --el-color-primary: #409eff;
  --el-color-primary-light-3: #79bbff;
  --el-color-primary-light-5: #a0cfff;
  --el-color-primary-light-7: #c6e2ff;
  --el-color-primary-light-9: #ecf5ff;
  --el-color-primary-dark-2: #337ecc;
  --el-border-radius-base: 4px;
  color: #303133;
  background: #f2f3f5;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  color: #303133;
  background: #f2f3f5;
}

button, input, select { font: inherit; }
button { cursor: pointer; }
button:disabled, input:disabled, select:disabled { cursor: not-allowed; }
h1, h2, p { margin: 0; }

.app-shell { min-height: 100vh; background: #f2f3f5; }

.login-shell { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; background: linear-gradient(160deg, #304156 0%, #1d2b3a 100%); }
.login-card { width: min(420px, 100%); display: flex; flex-direction: column; gap: 14px; padding: 34px 32px 30px; background: #fff; border-radius: 8px; box-shadow: 0 18px 48px rgba(0, 0, 0, .28); }
.login-brand { display: flex; align-items: center; gap: 13px; margin-bottom: 6px; }
.login-brand .brand-mark { flex-shrink: 0; }
.login-brand h1 { color: #303133; }
.login-brand .brand-kicker { color: #909399; }
.login-hint { color: #909399; font-size: 13px; }
.login-input { width: 100%; }
.login-error { margin-top: 2px; }
.login-button.el-button { width: 100%; height: 42px; margin: 6px 0 0; font-size: 15px; letter-spacing: .2em; }
.header-logout.el-button { height: 32px; margin: 0; color: #d9e2ec; border-color: #7aa7d4; background: transparent; }
.header-logout.el-button:hover { color: #fff; border-color: #f56c6c; background: rgba(245, 108, 108, .18); }

.app-header {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 60px);
  color: #fff;
  background: #304156;
  border-bottom: 1px solid #253447;
}

.brand-lockup, .header-meta, .panel-heading, .chart-actions, .selection-controls, .time-strip-head, .time-strip-foot, .app-footer, .period-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-lockup { justify-content: flex-start; gap: 13px; }
.brand-mark { width: 38px; height: 38px; display: flex; align-items: flex-end; gap: 3px; padding: 7px; background: #409eff; border-radius: 4px; }
.brand-mark span { display: block; width: 5px; background: #fff; border-radius: 1px; }
.brand-mark span:nth-child(1) { height: 11px; }
.brand-mark span:nth-child(2) { height: 20px; }
.brand-mark span:nth-child(3) { height: 26px; }
.brand-kicker { margin-bottom: 3px; color: #a9c9e8; font-size: 10px; font-weight: 600; letter-spacing: .1em; }
h1 { font-size: 18px; line-height: 1.35; font-weight: 600; }
h2 { font-size: 18px; line-height: 1.35; font-weight: 600; }
.header-meta { justify-content: flex-end; gap: 16px; color: #d9e2ec; font-size: 13px; }
.live-indicator { display: inline-flex; align-items: center; gap: 7px; color: #cbd7e4; font-size: 12px; }
.live-indicator i, .chart-status i { width: 7px; height: 7px; display: inline-block; border-radius: 50%; background: #67c23a; }
.header-date { max-width: 280px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.header-refresh.el-button { min-width: 68px; height: 32px; margin: 0; color: #fff; border-color: #7aa7d4; background: transparent; }
.header-refresh.el-button:hover { color: #fff; border-color: #409eff; background: rgba(64, 158, 255, .18); }
.spinning { animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 292px;
  gap: 16px;
  width: min(1600px, calc(100% - 32px));
  margin: 20px auto 0;
}

.panel { background: #fff; border: 1px solid #ebeef5; border-radius: 4px; box-shadow: 0 2px 12px rgba(0, 0, 0, .04); }
.query-panel { grid-column: 1; grid-row: 1; }
.selection-panel { grid-column: 1; grid-row: 2; }
.chart-panel { grid-column: 1 / -1; grid-row: 3; }
.insight-panel { grid-column: 2; grid-row: 1 / span 2; align-self: stretch; }

.query-panel { padding: 22px 24px 18px; }
.panel-heading { align-items: flex-start; gap: 16px; }
.compact-heading { margin-bottom: 18px; }
.connection-badge.el-tag { height: 28px; padding: 0 10px; font-size: 12px; }

.query-grid {
  display: grid;
  grid-template-columns: minmax(150px, 1.7fr) minmax(240px, 2fr) minmax(170px, 1.25fr) minmax(170px, 1.25fr) 120px;
  align-items: end;
  gap: 16px 12px;
}

.field { min-width: 0; }
.window-field .field-label { white-space: nowrap; }
.field-label { display: flex; align-items: baseline; gap: 7px; margin-bottom: 8px; color: #606266; font-size: 14px; font-weight: 500; line-height: 20px; }
.field-label em { color: #909399; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: 11px; font-style: normal; font-weight: 400; }
.query-control { width: 100%; }
.query-control.el-select, .query-control.el-date-editor { height: 40px; }
.query-control.el-input-number { width: 100%; }
.query-control .el-input__wrapper, .query-control.el-input-number { min-height: 40px; border-radius: 4px; }
.query-control .el-input__inner, .query-control .el-select__placeholder, .query-control .el-select__selected-item, .query-control .el-date-editor__placeholder { font-size: 14px; }
.query-control .el-tag { font-size: 13px; }
.point-counts { color: #909399; }
.point-counts .abnormal-count { color: #e05252; font-weight: 600; }
.window-number .el-input__inner { text-align: center; }
.query-button.el-button { width: 100%; height: 40px; margin: 0; border-radius: 4px; font-size: 14px; }
.field-types .el-select__wrapper { flex-wrap: nowrap; }
.field-types .el-select__tags { flex-wrap: nowrap; overflow: hidden; }
.field-types .el-select__tags .el-tag { flex-shrink: 0; }
.query-row-2 { display: contents; }
.query-row-2 .field-check,
.query-row-2 .field-second-group,
.query-row-2 .window-field,
.query-row-2 .field-time-range { min-height: 68px; }
.query-row-2 .field-time-range { grid-column: span 2; }
.field-check .field-label,
.field-status .field-label,
.field-first-cycle .field-label,
.window-field .field-label,
.field-time-range .field-label { white-space: nowrap; }
.field-second-group { display: flex; align-items: flex-start; gap: 16px; min-width: 0; }
.field-second-group .field-status { width: 120px; flex: 0 0 120px; }
.field-second-group .field-first-cycle { flex: 1 1 auto; min-width: 0; }
.query-checkbox.el-checkbox { height: 40px; margin-right: 20px; display: inline-flex; align-items: center; }
.query-checkbox.el-checkbox:last-child { margin-right: 0; }
.query-checkbox .el-checkbox__label { font-size: 14px; color: #303133; }
.field-status { width: 120px; max-width: 100%; }
.data-alert { margin-top: 16px; }

.selection-panel { padding: 20px 24px 18px; }
.time-strip { min-width: 0; }
.time-strip-head { align-items: flex-start; margin-bottom: 12px; }
.time-summary { padding-top: 4px; color: #909399; font-size: 13px; }
.time-legend { display: inline-flex; align-items: center; gap: 4px; margin-right: 10px; color: #606266; font-size: 12px; }
.time-legend i { width: 9px; height: 9px; display: inline-block; border-radius: 50%; }
.legend-running { background: #2e7d32; }
.legend-stopped { background: #c0c4cc; }
.time-summary .mono, .readout-number { color: #303133; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-weight: 500; }
.summary-divider { padding: 0 8px; color: #dcdfe6; }
.timeline-canvas-host { position: relative; width: 100%; min-height: 210px; overflow: hidden; border: 1px solid #ebeef5; border-radius: 4px; background: #fff; }
.timeline-canvas-host canvas { display: block; width: 100%; height: 210px; cursor: crosshair; }
.timeline-canvas-host.is-loading { opacity: .7; }
.canvas-loading, .chart-loading, .modal-loading { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: #909399; background: rgba(255, 255, 255, .82); font-size: 13px; }
.time-strip-foot { gap: 16px; margin-top: 12px; }
.time-foot-item { display: flex; flex-direction: column; gap: 3px; min-width: 100px; }
.time-foot-item.align-right { text-align: right; }
.foot-label { color: #909399; font-size: 12px; }
.time-foot-item strong { color: #606266; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: 13px; font-weight: 500; }
.window-track { flex: 1; padding: 0 6px; }
.window-track .el-slider { width: 100%; }
.selection-controls { gap: 12px; margin-top: 14px; }
.selection-readout { display: flex; align-items: center; gap: 8px; color: #606266; font-size: 14px; flex: 1; min-width: 0; }
.selection-readout > span:last-child { line-height: 1.7; word-break: break-all; }
.selection-actions { display: flex; gap: 8px; flex-shrink: 0; }
.selection-readout strong { color: #303133; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-weight: 500; }
.selection-accent { width: 7px; height: 7px; background: #409eff; border-radius: 50%; }
.reference-badge {
  flex-shrink: 0;
  padding: 1px 8px;
  border: 1px solid #4d9e6f;
  border-radius: 10px;
  color: #2e7d32;
  background: #ecf7f1;
  font-size: 12px;
  white-space: nowrap;
}
.jump-select { width: 280px; }
.jump-select .el-select__wrapper { min-height: 32px; }
.ghost-button.chart-query { font-weight: 500; }
.ghost-button.chart-query.is-dirty {
  border-color: #409eff;
  background: #ecf5ff;
  color: #409eff;
  box-shadow: 0 0 0 1px #409eff inset;
}
.ghost-button.el-button { height: 32px; padding: 0 14px; font-size: 13px; }

.window-files { margin-top: 12px; border: 1px solid #ebeef5; border-radius: 4px; overflow: hidden; background: #fff; }
.window-files-title { display: flex; align-items: center; gap: 10px; padding: 8px 12px; color: #606266; font-size: 12px; font-weight: 600; background: #f5f7fa; border-bottom: 1px solid #ebeef5; }
.file-point-radio { margin-left: auto; }
.window-files-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.window-files-table th, .window-files-table td { padding: 6px 10px; text-align: left; border-bottom: 1px solid #f0f2f5; white-space: nowrap; }
.window-files-table th { color: #909399; font-weight: 500; background: #fafbfc; }
.window-files-scroll { max-height: 180px; overflow-y: auto; }
.window-files-scroll thead th { position: sticky; top: 0; z-index: 1; }
.window-files-table td { color: #303133; }
.window-files-table td.mono { color: #606266; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
.window-files-table td.file-name { max-width: 280px; overflow: hidden; text-overflow: ellipsis; }
.window-files-table tr:last-child td { border-bottom: 0; }
.window-files-table td.actions { white-space: nowrap; }
.window-files-table .file-action.el-button { height: 24px; margin: 0 2px; padding: 0 10px; font-size: 12px; }

.chart-panel { min-height: 500px; padding: 22px 24px 15px; }
.chart-heading { margin-bottom: 10px; }
.chart-actions { gap: 15px; }
.mode-switch.el-radio-group { display: inline-flex; }
.mode-switch .el-radio-button__inner { font-size: 13px; }
.annotation-width { display: inline-flex; align-items: baseline; gap: 5px; color: #909399; font-size: 13px; white-space: nowrap; }
.annotation-width strong { color: #409eff; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: 15px; font-weight: 600; }
.sampling-switch { --el-switch-on-color: #409eff; }
.chart-status { display: flex; align-items: center; gap: 8px; color: #909399; font-size: 13px; white-space: nowrap; }
.chart-status i { width: 7px; height: 7px; }
.chart-status i.busy { background: #e6a23c; animation: pulse 1s ease-in-out infinite alternate; }
@keyframes pulse { to { opacity: .35; } }
.wave-chart-shell { position: relative; }
.chart-toolbar-note { display: flex; align-items: center; gap: 8px; height: 28px; color: #909399; font-size: 12px; }
.chart-dot { width: 7px; height: 7px; border-radius: 50%; background: #409eff; }
.chart-separator { width: 1px; height: 14px; margin: 0 3px; background: #dcdfe6; }
.chart-point-count { margin-left: auto; color: #606266; font-weight: 500; }
.wave-chart { width: 100%; height: 680px; }
.wave-chart.is-merge { height: 560px; }
.pv-preview-shell { display: flex; flex-direction: column; gap: 6px; width: 100%; padding: 4px 0; }
.pv-preview-row { position: relative; width: 100%; height: 132px; overflow: hidden; border: 1px solid #ebeef5; border-radius: 4px; background: #f8fafb; }
.pv-preview-title { position: absolute; z-index: 1; top: 3px; left: 10px; color: #8b9aa2; font-size: 11px; pointer-events: none; }
.pv-preview-canvas { display: block; width: 100%; height: 132px; }
.chart-empty-hint { margin-top: 7px; color: #e6a23c; font-size: 12px; }

.annotation-nav { margin-top: 12px; padding: 10px 12px 12px; border: 1px solid #ebeef5; border-radius: 4px; background: #fafbfc; }
.annotation-nav-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 9px; }
.annotation-nav-title { color: #606266; font-size: 13px; font-weight: 600; }
.annotation-nav-controls { display: flex; align-items: center; gap: 8px; }
.annotation-nav-controls .el-button { height: 28px; padding: 0 12px; font-size: 12px; }
.annotation-nav-counter { color: #606266; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: 12px; }
.annotation-nav-track { position: relative; height: 16px; border-radius: 3px; background: #eef1f3; overflow: hidden; }
.annotation-nav-seg { position: absolute; top: 2px; bottom: 2px; border-radius: 2px; cursor: pointer; }
.annotation-nav-seg.normal { background: #67c23a; opacity: .75; }
.annotation-nav-seg.abnormal { background: #f56c6c; opacity: .85; }
.annotation-nav-seg.active { outline: 2px solid #409eff; outline-offset: 1px; }
.annotation-nav-seg:hover { opacity: 1; }
.annotation-nav-legend { display: flex; gap: 12px; margin-top: 8px; color: #909399; font-size: 12px; }
.annotation-nav-legend span { display: inline-flex; align-items: center; gap: 5px; }
.annotation-swatch { width: 9px; height: 9px; border-radius: 2px; display: inline-block; }
.annotation-swatch.normal { background: #67c23a; }
.annotation-swatch.abnormal { background: #f56c6c; }

.insight-panel { min-height: 0; padding: 16px; color: #303133; background: #fff; border-color: #ebeef5; }
.insight-panel .compact-heading { margin-bottom: 10px; }
.readout-number { color: #409eff; font-size: 23px; }
.readout-grid { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.readout-card { min-height: 46px; display: flex; flex-direction: row; align-items: center; justify-content: space-between; gap: 8px; padding: 9px 12px; border: 1px solid #ebeef5; border-radius: 4px; background: #fff; }
.readout-card span, .data-footprint span { color: #909399; font-size: 12px; }
.readout-value { min-width: 0; display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
.readout-card strong { margin: 0; color: #303133; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: 13px; font-weight: 500; text-align: right; }
.readout-card small { margin: 0; color: #909399; font-size: 10px; white-space: nowrap; }
.data-footprint { display: grid; gap: 8px; margin-top: 14px; padding-top: 12px; border-top: 1px solid #ebeef5; }
.data-footprint div { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.data-footprint strong { max-width: 170px; overflow: hidden; color: #606266; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: 12px; font-weight: 500; text-align: right; text-overflow: ellipsis; white-space: nowrap; }

.app-footer { width: min(1600px, calc(100% - 32px)); margin: 0 auto; padding: 17px 2px 22px; color: #909399; font-size: 11px; }
.app-footer b { padding: 0 5px; color: #409eff; font-weight: 400; }

.modal-backdrop { position: fixed; z-index: 20; inset: 0; display: flex; align-items: center; justify-content: center; padding: 24px; background: rgba(0, 0, 0, .45); backdrop-filter: blur(2px); }
.period-modal { position: relative; width: min(1060px, 100%); min-height: 600px; overflow: hidden; background: #fff; border-radius: 4px; box-shadow: 0 12px 32px rgba(0, 0, 0, .16); }
.period-modal-head { align-items: flex-start; padding: 22px 25px 18px; color: #303133; background: #f5f7fa; border-bottom: 1px solid #ebeef5; }
.period-modal-head .eyebrow { display: block; margin-bottom: 7px; color: #409eff; }
.period-modal-head h2 { font-size: 21px; }
.period-modal-head p { margin-top: 7px; color: #909399; font-size: 12px; }
.icon-button { width: 29px; height: 29px; border: 0; color: #909399; background: transparent; font-size: 20px; line-height: 1; }
.icon-button:hover { color: #409eff; }
.period-stat-row { display: flex; flex-wrap: wrap; gap: 0; border-bottom: 1px solid #ebeef5; }
.period-stat-row > div { flex: 1 1 140px; min-height: 68px; display: flex; flex-direction: column; justify-content: center; gap: 5px; padding: 9px 18px; border-right: 1px solid #ebeef5; }
.period-stat-row span { color: #909399; font-size: 11px; }
.period-stat-row strong { color: #606266; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: 12px; font-weight: 500; }
.modal-tabs { display: flex; gap: 18px; padding: 17px 25px 0; }
.modal-tabs button { border: 0; border-bottom: 2px solid transparent; padding: 0 0 8px; color: #909399; background: transparent; font-size: 13px; }
.modal-tabs button.active { color: #409eff; border-bottom-color: #409eff; }
.period-chart { width: 100%; height: 440px; }
.modal-loading { position: absolute; z-index: 2; top: 100px; bottom: 0; background: rgba(255, 255, 255, .82); }

@media (max-width: 1300px) {
  .workspace { grid-template-columns: minmax(0, 1fr) 250px; }
  .query-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .field-point { grid-column: span 2; }
  .field-types { grid-column: span 1; }
  .query-action { grid-column: span 1; }
  .query-row-2 .field-time-range { grid-column: 1 / -1; }
}

@media (max-width: 930px) {
  .workspace { display: flex; flex-direction: column; width: min(100% - 20px, 760px); }
  .insight-panel { order: 4; }
  .query-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .field-point, .field-types, .query-action { grid-column: span 2; }
  .window-field,
  .query-row-2 .field-time-range { grid-column: 1 / -1; }
  .insight-panel { min-height: auto; }
  .readout-grid { grid-template-columns: repeat(2, 1fr); margin: 14px -16px 0; }
  .chart-heading { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 620px) {
  .app-header { align-items: flex-start; flex-direction: column; gap: 13px; padding: 15px; }
  .header-meta { width: 100%; justify-content: space-between; gap: 8px; }
  .header-date { max-width: 150px; }
  .workspace { width: calc(100% - 16px); margin-top: 10px; gap: 10px; }
  .query-panel, .selection-panel, .chart-panel { padding: 17px 14px 14px; }
  .query-grid { grid-template-columns: 1fr; gap: 12px; }
  .field-point, .field-types, .query-action { grid-column: span 1; }
  .query-row-2 .window-field,
  .query-row-2 .field-time-range { grid-column: 1; }
  .time-summary { font-size: 12px; text-align: right; }
  .selection-controls { align-items: flex-start; flex-direction: column; }
  .chart-actions { width: 100%; align-items: flex-start; flex-direction: column; gap: 10px; }
  .chart-status { align-self: flex-end; }
  .wave-chart { height: 600px; }
  .wave-chart.is-merge { height: 520px; }
  .pv-preview-row, .pv-preview-canvas { height: 118px; }
  .chart-toolbar-note { font-size: 11px; }
  .chart-point-count { display: none; }
  .readout-grid { grid-template-columns: 1fr; }
  .app-footer { width: calc(100% - 20px); align-items: flex-start; flex-direction: column; gap: 8px; line-height: 1.4; }
  .modal-backdrop { align-items: flex-end; padding: 0; }
  .period-modal { max-height: 92vh; overflow: auto; }
  .period-stat-row > div { flex-basis: 50%; border-bottom: 1px solid #ebeef5; }
  .period-chart { height: 300px; }
}