/* 回测分析 — 工作台布局（对齐逐步研究笔记） */

.page-backtest {
  --bt-status: clamp(1.25rem, 2.8vh, 1.75rem);
  --bt-activity: clamp(2.25rem, 3.5vw, 3rem);
  --bt-explorer: clamp(12rem, 16vw, 18rem);
  --bt-day-panel-w: 50%;
  --bt-core-h: min(520px, 56vh);
  --bt-chart-default-h: min(360px, 40vh);
  --bt-chart-h: min(360px, 40vh);
  --bt-main-min-h: min(400px, 46vh);
  --bt-analysis-chart-h: min(280px, 32vh);
  --bt-analysis-table-h: min(560px, 58vh);
  --bt-bg: #121a28;
  --bt-panel: #1c2839;
  --bt-panel-2: #243352;
  --bt-activity-bg: #1a2436;
  --bt-border: rgba(148, 163, 184, 0.22);
  --bt-text: #e8edf5;
  --bt-muted: #8892b0;
  --bt-accent: #00bbff;
  --bt-accent-hover: #33c9ff;
  --bt-accent-fg: #0f172a;
  --bt-highlight: #00bbff;
  --bt-hover: rgba(255, 255, 255, 0.08);
  --bt-card-bg: rgba(255, 255, 255, 0.06);
  --bt-card-border: rgba(148, 163, 184, 0.22);
  --bt-kpi-bg: rgba(255, 255, 255, 0.04);
  --bt-kpi-card-hover: rgba(255, 255, 255, 0.1);
  --bt-params-bg: var(--bt-panel);
  --bt-params-head-bg: var(--bt-panel-2);
  --bt-params-body-bg: rgba(255, 255, 255, 0.03);
  --bt-params-shadow: 0 4px 18px rgba(0, 0, 0, 0.18);
  --bt-select-menu-bg: #243352;
  --bt-select-menu-border: rgba(148, 163, 184, 0.28);
  --bt-select-menu-shadow: 0 14px 36px rgba(0, 0, 0, 0.42), 0 0 0 1px rgba(255, 255, 255, 0.05);
  --bt-select-item-hover: color-mix(in srgb, var(--bt-accent) 12%, transparent);
  --bt-select-item-active: color-mix(in srgb, var(--bt-accent) 22%, transparent);
  --bt-kpi-section-bg: var(--bt-panel);
  --bt-kpi-section-shadow: 0 4px 18px rgba(0, 0, 0, 0.15);
  --bt-scrollbar: rgba(148, 163, 184, 0.35);
  --bt-profit: #f87171;
  --bt-loss: #60a5fa;
  --bt-nav-line: #f87171;
  --bt-sans: "Noto Sans SC", system-ui, sans-serif;
  /* 日历选中态（起止日 / 区间内） */
  --bt-cal-range-bg: color-mix(in srgb, var(--bt-accent) 36%, var(--bt-panel));
  --bt-cal-range-fg: var(--bt-text);
  --bt-cal-edge-bg: var(--bt-accent);
  --bt-cal-edge-fg: var(--bt-accent-fg);
  --bt-cal-hover-bg: color-mix(in srgb, var(--bt-accent) 22%, var(--bt-panel));
  --bt-cal-today-fg: var(--bt-accent);
}

.page-backtest {
  box-sizing: border-box;
  margin: 0;
  padding: 0 !important;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  background: var(--bt-bg);
  color: var(--bt-text);
  font-family: var(--bt-sans);
  font-size: clamp(0.75rem, 0.85vw, 0.875rem);
}

.page-backtest *,
.page-backtest *::before,
.page-backtest *::after {
  box-sizing: border-box;
}

.page-backtest > .sw-topbar {
  flex: 0 0 auto;
  width: 100%;
}

.page-backtest .bt-app {
  display: flex;
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
  background: var(--bt-bg);
}

/* 侧栏 */
.page-backtest .bt-sidebar {
  display: flex;
  flex-shrink: 0;
  height: 100%;
  border-right: 1px solid var(--bt-border);
  background: var(--bt-panel);
}

.page-backtest .bt-activity-bar {
  width: var(--bt-activity);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 0.5rem 0;
  background: var(--bt-activity-bg);
  border-right: 1px solid var(--bt-border);
}

.page-backtest .bt-activity-btn {
  width: clamp(2rem, 2.8vw, 2.5rem);
  height: clamp(2rem, 2.8vw, 2.5rem);
  padding: 0;
  border: none;
  border-radius: 0;
  border-left: 2px solid transparent;
  background: transparent;
  color: var(--bt-muted);
  font-size: clamp(1rem, 1.2vw, 1.15rem);
  cursor: default;
}

.page-backtest .bt-activity-btn.is-active {
  color: var(--bt-text);
  border-left-color: var(--bt-accent);
  background: var(--bt-hover);
}

.page-backtest .bt-side-panel {
  width: var(--bt-explorer);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: width 0.22s cubic-bezier(0.22, 1, 0.36, 1);
}

.page-backtest .bt-app.bt-explorer-resizing .bt-side-panel {
  transition: none;
}

.page-backtest .bt-app.is-explorer-collapsed .bt-side-panel {
  width: 0;
  min-width: 0;
  pointer-events: none;
}

.page-backtest .bt-explorer {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--bt-panel);
}

.page-backtest .bt-explorer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: clamp(2rem, 3.5vh, 2.5rem);
  padding: 0 clamp(0.4rem, 0.8vw, 0.65rem) 0 clamp(0.55rem, 1vw, 0.85rem);
  border-bottom: 1px solid var(--bt-border);
  background: var(--bt-panel-2);
}

.page-backtest .bt-explorer-title {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--bt-muted);
  letter-spacing: 0.03em;
}

.page-backtest .bt-explorer-title i {
  color: var(--bt-accent);
  margin-right: 0.35rem;
}

.page-backtest .bt-explorer-tools {
  display: flex;
  gap: 2px;
  flex-shrink: 0;
}

.page-backtest .bt-tool {
  width: 26px;
  height: 26px;
  padding: 0;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--bt-muted);
  cursor: pointer;
  font-size: 12px;
}

.page-backtest .bt-tool:hover {
  background: var(--bt-hover);
  color: var(--bt-text);
}

.page-backtest .xtnb-tree {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 0.35rem 0.25rem;
  font-size: 0.82rem;
  scrollbar-width: thin;
  scrollbar-color: var(--xtnb-scrollbar) transparent;
}

.page-backtest .xtnb-tree-hint {
  margin: 0.5rem 0.35rem;
  padding: 0.35rem 0.5rem;
  font-size: 0.75rem;
  line-height: 1.55;
  color: var(--xtnb-muted);
}

.page-backtest .xtnb-tree-row {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 28px;
  padding: 2px 6px;
  border-radius: 4px;
  cursor: default;
  user-select: none;
  color: var(--xtnb-text);
}

.page-backtest .xtnb-tree-row[data-type="folder"] {
  padding-right: 30px;
}

.page-backtest .xtnb-tree-row[data-type="file"] {
  padding-right: 30px;
}

.page-backtest .xtnb-tree-row:hover {
  background: var(--xtnb-hover);
}

.page-backtest .xtnb-tree-row.is-active {
  background: color-mix(in srgb, var(--xtnb-accent) 18%, transparent);
}

.page-backtest .xtnb-tree-row.is-active .xtnb-tree-icon,
.page-backtest .xtnb-tree-row.is-active .xtnb-tree-toggle {
  color: var(--xtnb-text);
}

.page-backtest .xtnb-tree-row.is-active .xtnb-tree-label {
  color: var(--xtnb-accent);
  font-weight: 600;
}

.page-backtest .xtnb-tree-toggle,
.page-backtest .xtnb-tree-gap {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.page-backtest .xtnb-tree-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--xtnb-muted);
  font-size: 9px;
  cursor: pointer;
}

.page-backtest .xtnb-tree-icon {
  width: 16px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--xtnb-accent);
}

.page-backtest .xtnb-tree-row[data-type="folder"] .xtnb-tree-icon {
  color: var(--xtnb-folder-icon);
}

.page-backtest .xtnb-tree-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}

.page-backtest .xtnb-tree-row[data-type="folder"] .xtnb-tree-label {
  cursor: default;
}

.page-backtest .xtnb-tree-ops {
  position: absolute;
  top: 50%;
  right: 4px;
  transform: translateY(-50%);
  display: none;
  align-items: center;
  gap: 1px;
}

.page-backtest .xtnb-tree-row:hover .xtnb-tree-ops,
.page-backtest .xtnb-tree-row.is-active .xtnb-tree-ops {
  display: flex;
}

.page-backtest .xtnb-tree-op {
  width: 22px;
  height: 22px;
  padding: 0;
  border: none;
  border-radius: 3px;
  background: transparent;
  color: var(--xtnb-muted);
  font-size: 10px;
  cursor: pointer;
}

.page-backtest .xtnb-tree-op:hover {
  background: color-mix(in srgb, var(--xtnb-text) 8%, transparent);
  color: var(--xtnb-text);
}

.page-backtest .xtnb-tree-op--danger:hover {
  color: var(--xtnb-error);
}

/* 资源管理器右键菜单（与策略研究一致） */
.page-backtest .xtnb-context-menu {
  position: fixed;
  z-index: 1200;
  min-width: 168px;
  padding: 0.35rem 0;
  background: var(--xtnb-panel);
  border: 1px solid var(--xtnb-border);
  border-radius: 8px;
  box-shadow:
    0 12px 32px rgba(0, 0, 0, 0.28),
    0 0 0 1px color-mix(in srgb, var(--xtnb-border) 60%, transparent);
}

.page-backtest .xtnb-context-menu.hidden {
  display: none !important;
}

.page-backtest .xtnb-ctx-item {
  display: block;
  width: 100%;
  padding: 0.45rem 0.9rem;
  border: none;
  background: transparent;
  color: var(--xtnb-text);
  font-size: 0.78rem;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  transition: background 0.12s ease;
}

.page-backtest .xtnb-ctx-item:hover:not(:disabled) {
  background: var(--xtnb-hover);
}

.page-backtest .xtnb-ctx-item:disabled {
  opacity: 0.45;
  cursor: default;
}

.page-backtest .xtnb-ctx-item--danger {
  color: var(--xtnb-error);
}

.page-backtest .xtnb-ctx-item--danger:hover:not(:disabled) {
  background: color-mix(in srgb, var(--xtnb-error) 10%, var(--xtnb-panel));
}

.page-backtest .xtnb-ctx-sep {
  height: 1px;
  margin: 0.35rem 0.45rem;
  background: var(--xtnb-border);
}

.page-backtest .xtnb-tree-row.is-readonly .xtnb-tree-op {
  display: none !important;
}

.page-backtest .xtnb-tree-row.is-readonly {
  cursor: pointer;
}

.page-backtest .bt-explorer-toggle {
  display: none;
  position: fixed;
  left: var(--bt-activity);
  top: 50%;
  transform: translateY(-50%);
  z-index: 20;
  width: 22px;
  height: 44px;
  border: 1px solid var(--bt-border);
  border-left: none;
  border-radius: 0 6px 6px 0;
  background: var(--bt-panel);
  color: var(--bt-muted);
  cursor: pointer;
}

.page-backtest .bt-app.is-explorer-collapsed .bt-explorer-toggle {
  display: block;
}

.page-backtest .bt-app.is-explorer-collapsed .bt-sidebar {
  border-right: none;
}

/* 资源管理器与主工作区之间的可拖拽分隔条 */
.page-backtest .bt-sidebar-split {
  position: relative;
  flex-shrink: 0;
  align-self: stretch;
  width: 12px;
  margin: 0 -4px;
  cursor: col-resize;
  z-index: 3;
  touch-action: none;
}

.page-backtest .bt-app.is-explorer-collapsed .bt-sidebar-split {
  display: none;
}

.page-backtest .bt-sidebar-split-line {
  position: absolute;
  top: 12px;
  bottom: 12px;
  left: 50%;
  width: 1px;
  margin-left: -0.5px;
  background: var(--bt-border);
  opacity: 0;
  transition: opacity 0.22s ease, background 0.22s ease, box-shadow 0.22s ease;
  pointer-events: none;
}

.page-backtest .bt-sidebar-split-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--bt-panel);
  color: var(--bt-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.22s ease,
    transform 0.22s ease,
    height 0.22s ease,
    border-color 0.22s ease,
    background 0.22s ease,
    color 0.22s ease,
    box-shadow 0.22s ease;
}

.page-backtest .bt-sidebar-split:hover .bt-sidebar-split-line,
.page-backtest .bt-sidebar-split:focus-visible .bt-sidebar-split-line,
.page-backtest .bt-sidebar-split.is-dragging .bt-sidebar-split-line {
  opacity: 1;
  background: color-mix(in srgb, var(--bt-accent) 55%, var(--bt-border));
  box-shadow: 0 0 12px color-mix(in srgb, var(--bt-accent) 35%, transparent);
}

.page-backtest .bt-sidebar-split:hover .bt-sidebar-split-handle,
.page-backtest .bt-sidebar-split:focus-visible .bt-sidebar-split-handle,
.page-backtest .bt-sidebar-split.is-dragging .bt-sidebar-split-handle {
  opacity: 1;
  height: 52px;
  border-color: color-mix(in srgb, var(--bt-accent) 40%, var(--bt-border));
  background: color-mix(in srgb, var(--bt-accent) 10%, var(--bt-panel));
  color: var(--bt-accent);
  box-shadow:
    0 2px 10px rgba(0, 0, 0, 0.12),
    0 0 0 1px color-mix(in srgb, var(--bt-accent) 18%, transparent);
}

.page-backtest .bt-sidebar-split.is-dragging .bt-sidebar-split-handle {
  transform: translate(-50%, -50%) scale(1.04);
}

.page-backtest .bt-sidebar-split:focus-visible {
  outline: none;
}

body.bt-split-dragging {
  cursor: col-resize !important;
  user-select: none;
}

body.bt-split-dragging .bt-sidebar-split-line,
body.bt-split-dragging .bt-sidebar-split-handle {
  opacity: 1;
}

/* 主工作区 */
.page-backtest .bt-workspace {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--bt-bg);
  opacity: 1;
  transition: opacity 0.35s ease;
}

.page-backtest .bt-workspace--loading {
  opacity: 0.55;
}

.page-backtest .bt-workspace--ready {
  animation: btWorkspaceIn 0.45s ease forwards;
}

@keyframes btWorkspaceIn {
  from {
    opacity: 0.4;
  }
  to {
    opacity: 1;
  }
}

.page-backtest .bt-workspace-head {
  flex-shrink: 0;
  min-height: clamp(2.25rem, 4.5vh, 2.75rem);
  padding: clamp(0.35rem, 0.8vh, 0.55rem) clamp(0.85rem, 1.5vw, 1.25rem);
  border-bottom: 1px solid var(--bt-border);
  background: var(--bt-panel);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.page-backtest .bt-workspace-head-main {
  flex: 1;
  min-width: 0;
}

.page-backtest .bt-workspace-head-actions {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-top: 0.1rem;
}

.page-backtest .bt-link-note {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.55rem;
  border-radius: 5px;
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--bt-accent);
  text-decoration: none;
  border: 1px solid color-mix(in srgb, var(--bt-accent) 35%, transparent);
  background: color-mix(in srgb, var(--bt-accent) 8%, transparent);
  transition: background 0.15s ease, border-color 0.15s ease;
}

.page-backtest .bt-link-note:hover {
  background: color-mix(in srgb, var(--bt-accent) 16%, transparent);
  border-color: var(--bt-accent);
  color: var(--bt-accent-hover);
}

.page-backtest .bt-params-dirty {
  display: inline-block;
  padding: 0.12rem 0.4rem;
  border-radius: 4px;
  font-size: 0.65rem;
  font-weight: 600;
  background: rgba(251, 191, 36, 0.18);
  color: #fbbf24;
  animation: btDirtyPulse 2s ease-in-out infinite;
}

@keyframes btDirtyPulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.65;
  }
}

.page-backtest .bt-params-panel {
  flex-shrink: 0;
  margin: 0 0 0.85rem;
  border: 1px solid var(--bt-card-border);
  border-radius: 10px;
  background: var(--bt-params-bg);
  box-shadow: var(--bt-params-shadow);
  overflow: visible;
}

.page-backtest .bt-params-panel.is-collapsed .bt-params-body {
  display: none;
}

.page-backtest .bt-params-panel.is-collapsed .bt-params-chevron {
  transform: rotate(-90deg);
}

.page-backtest .bt-params-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.55rem clamp(0.85rem, 1.2vw, 1rem);
  background: var(--bt-params-head-bg);
  border-bottom: 1px solid var(--bt-border);
  border-radius: 10px 10px 0 0;
  overflow: hidden;
}

.page-backtest .bt-params-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.28rem 0.45rem;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--bt-text);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, transform 0.12s ease;
}

.page-backtest .bt-params-toggle > i:first-child {
  color: var(--bt-accent);
  font-size: 0.78rem;
}

.page-backtest .bt-params-toggle:hover {
  background: var(--bt-hover);
}

.page-backtest .bt-params-toggle:active {
  transform: scale(0.98);
}

.page-backtest .bt-params-chevron {
  margin-left: 0.15rem;
  font-size: 0.62rem;
  color: var(--bt-muted);
  transition: transform 0.22s cubic-bezier(0.22, 1, 0.36, 1);
}

.page-backtest .bt-params-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-backtest .bt-params-reset,
.page-backtest .bt-params-run {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2rem;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition:
    transform 0.12s ease,
    box-shadow 0.2s ease,
    border-color 0.18s ease,
    background 0.18s ease,
    color 0.18s ease,
    opacity 0.15s ease;
}

.page-backtest .bt-params-reset {
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--bt-border);
  border-radius: 8px;
  background: transparent;
  color: var(--bt-muted);
}

.page-backtest .bt-params-reset:hover:not(:disabled) {
  color: var(--bt-text);
  border-color: color-mix(in srgb, var(--bt-accent) 35%, var(--bt-border));
  background: var(--bt-hover);
  box-shadow: 0 2px 8px color-mix(in srgb, var(--bt-accent) 12%, transparent);
}

.page-backtest .bt-params-reset:active:not(:disabled) {
  transform: scale(0.96);
}

.page-backtest .bt-params-run {
  padding: 0.38rem 1rem;
  border: 1px solid transparent;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--bt-accent) 0%, var(--bt-accent-hover) 100%);
  color: var(--bt-accent-fg);
  box-shadow: 0 4px 14px color-mix(in srgb, var(--bt-accent) 32%, transparent);
}

.page-backtest .bt-params-run:hover:not(:disabled) {
  box-shadow: 0 6px 20px color-mix(in srgb, var(--bt-accent) 42%, transparent);
  filter: brightness(1.04);
}

.page-backtest .bt-params-run:active:not(:disabled) {
  transform: scale(0.96);
  box-shadow: 0 2px 8px color-mix(in srgb, var(--bt-accent) 28%, transparent);
}

.page-backtest .bt-params-run:disabled,
.page-backtest .bt-params-reset:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
  filter: none;
}

.page-backtest .bt-params-run.is-running {
  pointer-events: none;
  opacity: 0.92;
}

.page-backtest .bt-params-run.is-running::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  border: 1px solid color-mix(in srgb, var(--bt-accent) 55%, transparent);
  animation: btBtnRing 1.1s ease-out infinite;
  pointer-events: none;
}

.page-backtest .bt-params-run.is-running .fa-spinner {
  animation: fa-spin 0.75s linear infinite;
}

@keyframes btBtnRing {
  0% {
    opacity: 0.85;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(1.1);
  }
}

.page-backtest .bt-params-body {
  padding: 0.85rem clamp(0.85rem, 1.2vw, 1rem) 0.85rem;
  background: var(--bt-params-body-bg);
  overflow: visible;
}

.page-backtest .bt-params-grid {
  display: flex;
  flex-wrap: nowrap;
  align-items: flex-end;
  gap: 0.55rem 0.65rem;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: thin;
  scrollbar-color: var(--bt-scrollbar) transparent;
}

.page-backtest .bt-param-field {
  display: flex;
  flex-direction: column;
  gap: 0.22rem;
  margin: 0;
  flex: 1 1 0;
  min-width: 6.5rem;
}

.page-backtest .bt-param-label {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--bt-muted);
  letter-spacing: 0.03em;
}

.page-backtest .bt-param-field--range {
  flex: 1.35 1 0;
  min-width: 10.5rem;
}

.page-backtest .bt-param-field--capital {
  flex: 0.95 1 0;
  min-width: 8.5rem;
}

.page-backtest .bt-param-capital {
  display: flex;
  align-items: stretch;
  width: 100%;
  border: 1px solid var(--bt-border);
  border-radius: 8px;
  background: var(--bt-card-bg);
  overflow: hidden;
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease;
}

.page-backtest .bt-param-capital:hover {
  border-color: color-mix(in srgb, var(--bt-accent) 28%, var(--bt-border));
  background: color-mix(in srgb, var(--bt-accent) 4%, var(--bt-card-bg));
}

.page-backtest .bt-param-capital:focus-within {
  border-color: var(--bt-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--bt-accent) 18%, transparent);
}

.page-backtest .bt-param-capital.is-changed {
  border-color: color-mix(in srgb, #fbbf24 55%, var(--bt-border));
  background: color-mix(in srgb, #fbbf24 8%, var(--bt-card-bg));
  box-shadow: 0 0 0 2px color-mix(in srgb, #fbbf24 14%, transparent);
}

.page-backtest .bt-param-capital-amount,
.page-backtest .bt-param-capital-unit {
  border: none !important;
  border-radius: 0;
  background: transparent;
  box-shadow: none !important;
  min-height: 2.05rem;
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  color: var(--bt-text);
  outline: none;
  width: auto;
}

.page-backtest .bt-param-capital-amount {
  flex: 1 1 5rem;
  min-width: 3rem;
  width: auto;
  padding: 0.42rem 0.55rem;
  border-right: 1px solid var(--bt-border);
}

/* 初始资金单位：由 bt_param_select.js 自定义下拉接管 */
.page-backtest .bt-param-capital .bt-param-select--compact {
  flex: 0 0 3.85rem;
  min-width: 3.85rem;
  border-left: none;
}

.page-backtest .bt-param-select {
  position: relative;
  width: 100%;
}

.page-backtest .bt-param-select-native {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.page-backtest .bt-param-select-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.35rem;
  width: 100%;
  min-height: 2.05rem;
  padding: 0.42rem 0.62rem;
  border: 1px solid var(--bt-border);
  border-radius: 8px;
  background: var(--bt-card-bg);
  color: var(--bt-text);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  cursor: pointer;
  text-align: left;
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease,
    transform 0.12s ease;
}

.page-backtest .bt-param-select-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.page-backtest .bt-param-select-caret {
  font-size: 0.58rem;
  color: var(--bt-muted);
  opacity: 0.75;
  flex-shrink: 0;
  transition: transform 0.2s ease, color 0.18s ease;
}

.page-backtest .bt-param-select-trigger:hover:not(:disabled) {
  border-color: color-mix(in srgb, var(--bt-accent) 28%, var(--bt-border));
  background: color-mix(in srgb, var(--bt-accent) 4%, var(--bt-card-bg));
}

.page-backtest .bt-param-select.is-open .bt-param-select-trigger,
.page-backtest .bt-param-select-trigger:focus-visible {
  outline: none;
  border-color: var(--bt-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--bt-accent) 18%, transparent);
}

.page-backtest .bt-param-select.is-open .bt-param-select-caret {
  transform: rotate(180deg);
  color: var(--bt-accent);
}

.page-backtest .bt-param-select.is-changed .bt-param-select-trigger {
  border-color: color-mix(in srgb, #fbbf24 55%, var(--bt-border));
  background: color-mix(in srgb, #fbbf24 8%, var(--bt-card-bg));
  box-shadow: 0 0 0 2px color-mix(in srgb, #fbbf24 14%, transparent);
}

.page-backtest .bt-param-select--compact .bt-param-select-trigger {
  min-height: 2.05rem;
  padding: 0.42rem 0.35rem 0.42rem 0.45rem;
  border: none;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  justify-content: center;
}

.page-backtest .bt-param-select--compact .bt-param-select-label {
  flex: 0 1 auto;
  text-align: center;
}

.page-backtest .bt-param-select--compact.is-open .bt-param-select-trigger,
.page-backtest .bt-param-select--compact .bt-param-select-trigger:focus-visible {
  box-shadow: none;
  background: color-mix(in srgb, var(--bt-accent) 8%, transparent);
}

.page-backtest .bt-param-select--compact.is-open .bt-param-select-trigger {
  color: var(--bt-accent);
}

/* 下拉菜单挂 body，继承 .page-backtest 主题变量 */
.bt-param-select-menu {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 3100;
  padding: 0.35rem;
  border-radius: 10px;
  background: var(--bt-select-menu-bg);
  border: 1px solid var(--bt-select-menu-border);
  box-shadow: var(--bt-select-menu-shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-4px) scale(0.98);
  transition:
    opacity 0.16s ease,
    transform 0.16s cubic-bezier(0.22, 1, 0.36, 1);
}

.bt-param-select-menu.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.bt-param-select-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  width: 100%;
  padding: 0.48rem 0.62rem;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--bt-text);
  font-size: 0.78rem;
  text-align: left;
  cursor: pointer;
  transition: background 0.14s ease, color 0.14s ease;
}

.bt-param-select-option-label {
  flex: 1;
  min-width: 0;
}

.bt-param-select-option-check {
  font-size: 0.62rem;
  color: var(--bt-accent);
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.14s ease, transform 0.14s ease;
}

.bt-param-select-option:hover {
  background: var(--bt-select-item-hover);
  color: var(--bt-text);
}

.bt-param-select-option.is-selected {
  background: var(--bt-select-item-active);
  color: var(--bt-text);
  font-weight: 500;
}

.bt-param-select-option.is-selected .bt-param-select-option-check {
  opacity: 1;
  transform: scale(1);
}

.page-backtest .bt-date-range {
  position: relative;
}

.page-backtest .bt-date-range-trigger {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  width: 100%;
  padding: 0.42rem 0.62rem;
  border: 1px solid var(--bt-border);
  border-radius: 8px;
  background: var(--bt-card-bg);
  color: var(--bt-text);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  cursor: pointer;
  text-align: left;
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease,
    transform 0.12s ease;
}

.page-backtest .bt-date-range-trigger > i:first-child {
  color: var(--bt-accent);
  opacity: 0.85;
  font-size: 0.88rem;
  flex-shrink: 0;
}

.page-backtest .bt-date-range-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.page-backtest .bt-date-range-caret {
  font-size: 0.62rem;
  opacity: 0.5;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.page-backtest .bt-date-range.is-open .bt-date-range-caret {
  transform: rotate(180deg);
}

.page-backtest .bt-date-range-trigger:hover:not(:disabled) {
  border-color: color-mix(in srgb, var(--bt-accent) 28%, var(--bt-border));
  background: color-mix(in srgb, var(--bt-accent) 4%, var(--bt-card-bg));
}

.page-backtest .bt-date-range.is-open .bt-date-range-trigger {
  border-color: var(--bt-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--bt-accent) 18%, transparent);
}

.page-backtest .bt-date-range-trigger.is-changed {
  border-color: color-mix(in srgb, #fbbf24 55%, var(--bt-border));
  background: color-mix(in srgb, #fbbf24 8%, var(--bt-card-bg));
  box-shadow: 0 0 0 2px color-mix(in srgb, #fbbf24 14%, transparent);
}

/* 日历弹出层：挂 body，继承 body.page-backtest 主题变量 */
.bt-date-range-popover {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 3000;
  padding: 0.75rem;
  border-radius: 12px;
  background: var(--bt-panel);
  border: 1px solid var(--bt-border);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22), 0 0 0 1px rgba(255, 255, 255, 0.04);
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transform: translateY(-4px);
  transition: none;
}

.bt-date-range-popover.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  visibility: visible;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.bt-date-range-popover .bt-date-range-calendars {
  display: flex;
  gap: 0.85rem;
}

.bt-date-range-popover .bt-date-cal {
  min-width: 13.5rem;
}

.bt-date-range-popover .bt-date-cal__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.55rem;
  gap: 0.35rem;
}

.bt-date-range-popover .bt-date-cal__title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--bt-text);
  font-variant-numeric: tabular-nums;
}

.bt-date-range-popover .bt-date-cal__nav {
  width: 1.75rem;
  height: 1.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 7px;
  border: 1px solid var(--bt-border);
  background: var(--bt-card-bg);
  color: var(--bt-muted);
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  flex-shrink: 0;
}

.bt-date-range-popover .bt-date-cal__nav-spacer {
  width: 1.75rem;
  height: 1.75rem;
  flex-shrink: 0;
}

.bt-date-range-popover .bt-date-cal__nav:hover {
  border-color: color-mix(in srgb, var(--bt-accent) 35%, var(--bt-border));
  color: var(--bt-text);
  background: color-mix(in srgb, var(--bt-accent) 8%, var(--bt-card-bg));
}

.bt-date-range-popover .bt-date-cal__weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.15rem;
  margin-bottom: 0.25rem;
}

.bt-date-range-popover .bt-date-cal__weekday {
  text-align: center;
  font-size: 0.62rem;
  font-weight: 500;
  color: var(--bt-muted);
  padding: 0.15rem 0;
}

.bt-date-range-popover .bt-date-cal__grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.12rem;
}

.bt-date-range-popover .bt-date-cal__day {
  aspect-ratio: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--bt-text);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease, box-shadow 0.12s ease;
}

.bt-date-range-popover .bt-date-cal__day.is-empty {
  visibility: hidden;
  pointer-events: none;
}

.bt-date-range-popover .bt-date-cal__day:hover:not(.is-empty):not(.is-edge) {
  background: var(--bt-cal-hover-bg);
  color: var(--bt-text);
}

.bt-date-range-popover .bt-date-cal__day.is-today:not(.is-edge) {
  font-weight: 700;
  color: var(--bt-cal-today-fg);
}

.bt-date-range-popover .bt-date-cal__day.is-in-range:not(.is-edge) {
  background: var(--bt-cal-range-bg);
  color: var(--bt-cal-range-fg);
  border-radius: 0;
}

.bt-date-range-popover .bt-date-cal__day.is-edge {
  background: var(--bt-cal-edge-bg);
  color: var(--bt-cal-edge-fg);
  font-weight: 700;
  border-radius: 7px;
  box-shadow: 0 2px 10px color-mix(in srgb, var(--bt-accent) 45%, transparent);
}

.bt-date-range-popover .bt-date-cal__day.is-in-range.is-edge {
  background: var(--bt-cal-edge-bg);
  color: var(--bt-cal-edge-fg);
  border-radius: 7px;
}

@media (max-width: 640px) {
  .bt-date-range-popover .bt-date-range-calendars {
    flex-direction: column;
  }
}

.page-backtest .bt-param-input {
  width: 100%;
  padding: 0.42rem 0.62rem;
  border: 1px solid var(--bt-border);
  border-radius: 8px;
  background: var(--bt-card-bg);
  color: var(--bt-text);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  color-scheme: dark;
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease,
    transform 0.12s ease;
}

.page-backtest select.bt-param-input {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 1.65rem;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%238892b0' d='M0 0l5 6 5-6z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.55rem center;
  background-size: 10px 6px;
}

.page-backtest .bt-param-input:hover:not(:focus):not(:disabled) {
  border-color: color-mix(in srgb, var(--bt-accent) 28%, var(--bt-border));
  background: color-mix(in srgb, var(--bt-accent) 4%, var(--bt-card-bg));
}

.page-backtest .bt-param-input:focus {
  outline: none;
  border-color: var(--bt-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--bt-accent) 18%, transparent);
}

.page-backtest .bt-param-input.is-changed {
  border-color: color-mix(in srgb, #fbbf24 55%, var(--bt-border));
  background: color-mix(in srgb, #fbbf24 8%, var(--bt-card-bg));
  box-shadow: 0 0 0 2px color-mix(in srgb, #fbbf24 14%, transparent);
}

.page-backtest .bt-param-input option {
  background: var(--bt-panel);
  color: var(--bt-text);
}

.page-backtest .bt-params-hint {
  margin: 0.75rem 0 0;
  padding: 0.5rem 0.65rem;
  border-radius: 6px;
  border-left: 3px solid color-mix(in srgb, var(--bt-accent) 45%, transparent);
  background: color-mix(in srgb, var(--bt-accent) 6%, transparent);
  font-size: 0.68rem;
  color: var(--bt-muted);
  line-height: 1.55;
}

.page-backtest .bt-params-panel.is-disabled {
  opacity: 0.55;
  pointer-events: none;
}

.page-backtest .bt-params-run.is-running {
  min-width: 5.5rem;
}

.page-backtest .bt-workspace-title-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.page-backtest .bt-page-title {
  margin: 0;
  font-size: clamp(0.95rem, 1.1vw, 1.05rem);
  font-weight: 600;
  color: var(--bt-text);
  letter-spacing: 0.02em;
}

.page-backtest .bt-badge-demo {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  font-size: 0.68rem;
  font-weight: 600;
  background: rgba(148, 163, 184, 0.2);
  color: var(--bt-muted);
}

.page-backtest .bt-report-sub {
  margin: 0.2rem 0 0;
  font-size: 0.78rem;
  color: var(--bt-muted);
}

.page-backtest .bt-workspace-body {
  flex: 1;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  padding: clamp(0.55rem, 0.9vw, 0.75rem) clamp(0.85rem, 1.5vw, 1.25rem) clamp(0.55rem, 0.9vw, 0.75rem);
  scrollbar-width: thin;
  scrollbar-color: var(--bt-scrollbar) transparent;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.page-backtest .bt-params-panel {
  flex-shrink: 0;
}

.page-backtest .bt-workspace-core {
  flex: 0 0 auto;
  min-height: var(--bt-main-min-h);
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  overflow: visible;
}

.page-backtest.bt-core-sized .bt-workspace-core {
  height: var(--bt-core-h);
  min-height: var(--bt-main-min-h);
  overflow: hidden;
}

.page-backtest.bt-core-sized .bt-main-split {
  flex: 1 1 0;
  min-height: 0;
}

.page-backtest.bt-core-sized .bt-main-split-chart .bt-chart-card {
  flex: 1 1 0;
  min-height: 0;
  overflow: hidden;
}

.page-backtest.bt-core-sized .bt-chart-wrap {
  flex: 1 1 0;
  height: auto;
  min-height: 180px;
}

.page-backtest.bt-core-sized .bt-day-panel {
  min-height: 0;
}

/* KPI */
.page-backtest .bt-kpi-section {
  flex-shrink: 0;
  margin-bottom: 0;
  padding: clamp(0.55rem, 0.9vw, 0.75rem) clamp(0.85rem, 1.2vw, 1rem);
  border: 1px solid var(--bt-card-border);
  border-radius: 10px;
  background: var(--bt-kpi-section-bg);
  box-shadow: var(--bt-kpi-section-shadow);
}

.page-backtest .bt-kpi-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.55rem;
  padding-bottom: 0.45rem;
  border-bottom: 1px solid var(--bt-border);
}

.page-backtest .bt-kpi-section-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.page-backtest .bt-kpi-expand-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--bt-border);
  border-radius: 999px;
  background: transparent;
  color: var(--bt-muted);
  font-size: 0.68rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.page-backtest .bt-kpi-expand-btn:hover {
  color: var(--bt-text);
  border-color: color-mix(in srgb, var(--bt-accent) 35%, var(--bt-border));
  background: var(--bt-hover);
}

.page-backtest .bt-kpi-expand-btn i {
  font-size: 0.58rem;
  transition: transform 0.2s ease;
}

.page-backtest .bt-kpi-section:not(.is-compact) .bt-kpi-expand-btn i {
  transform: rotate(180deg);
}

.page-backtest .bt-kpi-section.is-compact .bt-kpi-card--extra {
  display: none;
}

.page-backtest .bt-kpi-section.is-compact .bt-kpi-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.page-backtest .bt-kpi-section.is-compact .bt-kpi-section-head {
  margin-bottom: 0.45rem;
  padding-bottom: 0.35rem;
}

.page-backtest .bt-section-title {
  margin: 0;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--bt-text);
  letter-spacing: 0.02em;
}

.page-backtest .bt-section-title i {
  color: var(--bt-accent);
  opacity: 0.92;
}

.page-backtest .bt-kpi-range {
  display: inline-flex;
  align-items: center;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--bt-accent) 28%, var(--bt-border));
  background: color-mix(in srgb, var(--bt-accent) 8%, transparent);
  font-size: 0.66rem;
  font-weight: 500;
  color: var(--bt-accent);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.page-backtest .bt-kpi-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.5rem;
}

@media (max-width: 1400px) {
  .page-backtest .bt-kpi-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 1200px) {
  .page-backtest .bt-kpi-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .page-backtest .bt-kpi-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-backtest .bt-kpi-card {
  position: relative;
  background: var(--bt-kpi-bg);
  border: 1px solid var(--bt-card-border);
  border-radius: 8px;
  padding: 0.45rem 0.55rem;
  transition:
    transform 0.18s ease,
    box-shadow 0.2s ease,
    border-color 0.18s ease,
    background 0.18s ease;
}

.page-backtest .bt-kpi-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0.55rem;
  right: 0.55rem;
  height: 2px;
  border-radius: 0 0 2px 2px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--bt-accent) 35%, transparent), transparent);
  opacity: 0;
  transition: opacity 0.18s ease;
}

.page-backtest .bt-kpi-card:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--bt-accent) 22%, var(--bt-card-border));
  background: var(--bt-kpi-card-hover, var(--bt-kpi-bg));
  box-shadow: 0 4px 14px color-mix(in srgb, var(--bt-accent) 10%, transparent);
}

.page-backtest .bt-kpi-card:hover::before {
  opacity: 1;
}

/* 核心指标略突出 */
.page-backtest .bt-kpi-card:nth-child(-n + 4) {
  background: color-mix(in srgb, var(--bt-accent) 9%, var(--bt-kpi-bg));
}

.page-backtest .bt-kpi-card:nth-child(-n + 4) .bt-kpi-value {
  font-size: clamp(0.82rem, 1vw, 0.96rem);
}

.page-backtest .bt-kpi-label {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  font-size: 0.64rem;
  font-weight: 500;
  color: var(--bt-muted);
  margin-bottom: 0.12rem;
  line-height: 1.2;
}

.page-backtest .bt-kpi-label i {
  font-size: 0.58rem;
  color: color-mix(in srgb, var(--bt-accent) 70%, var(--bt-muted));
  opacity: 0.9;
}

.page-backtest .bt-kpi-value {
  font-size: clamp(0.78rem, 0.95vw, 0.92rem);
  font-weight: 700;
  color: var(--bt-text);
  font-variant-numeric: tabular-nums;
  line-height: 1.25;
  transition: color 0.2s ease;
}

.page-backtest .bt-kpi-sub {
  display: none;
}

.page-backtest .bt-kpi-card.bt-kpi-enter {
  animation: btKpiIn 0.5s ease both;
}

@keyframes btKpiIn {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.page-backtest .bt-kpi-value.bt-kpi-pop {
  animation: btKpiPop 0.55s ease;
}

@keyframes btKpiPop {
  0% {
    transform: scale(1);
  }
  40% {
    transform: scale(1.08);
    color: var(--bt-accent);
  }
  100% {
    transform: scale(1);
  }
}

/* 主区双栏：净值图 + 当日快照 */
.page-backtest .bt-main-split {
  flex: 1 1 auto;
  min-height: calc(var(--bt-chart-default-h) + 4.5rem);
  display: flex;
  align-items: stretch;
  gap: 0;
  min-width: 0;
}

.page-backtest .bt-main-split-chart {
  flex: 1 1 50%;
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-self: stretch;
  overflow: hidden;
}

.page-backtest .bt-main-split-chart .bt-chart-card {
  flex: 1 1 auto;
  min-height: 0;
  margin-bottom: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.page-backtest .bt-main-split-chart .bt-chart-wrap {
  flex: 1 1 auto;
  height: auto;
  min-height: min(180px, 28vh);
}

.page-backtest.bt-chart-sized .bt-main-split-chart .bt-chart-wrap {
  flex: 0 0 auto;
  height: var(--bt-chart-h);
  min-height: 180px;
}

.page-backtest .bt-main-split-chart .bt-timeline {
  flex-shrink: 0;
}

.page-backtest .bt-main-split-chart .bt-chart-height-split {
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.page-backtest .bt-main-split-handle {
  position: relative;
  flex-shrink: 0;
  width: 12px;
  margin: 0 -4px;
  cursor: col-resize;
  z-index: 2;
  touch-action: none;
}

.page-backtest .bt-main-split-line {
  position: absolute;
  top: 12px;
  bottom: 12px;
  left: 50%;
  width: 1px;
  margin-left: -0.5px;
  background: var(--bt-border);
  opacity: 0;
  transition: opacity 0.22s ease, background 0.22s ease;
  pointer-events: none;
}

.page-backtest .bt-main-split-grip {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--bt-panel);
  color: var(--bt-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease, height 0.22s ease;
}

.page-backtest .bt-main-split-handle:hover .bt-main-split-line,
.page-backtest .bt-main-split-handle:focus-visible .bt-main-split-line,
.page-backtest .bt-main-split-handle.is-dragging .bt-main-split-line {
  opacity: 1;
  background: color-mix(in srgb, var(--bt-accent) 55%, var(--bt-border));
}

.page-backtest .bt-main-split-handle:hover .bt-main-split-grip,
.page-backtest .bt-main-split-handle:focus-visible .bt-main-split-grip,
.page-backtest .bt-main-split-handle.is-dragging .bt-main-split-grip {
  opacity: 1;
  height: 52px;
  border-color: color-mix(in srgb, var(--bt-accent) 40%, var(--bt-border));
  background: color-mix(in srgb, var(--bt-accent) 10%, var(--bt-panel));
  color: var(--bt-accent);
}

.page-backtest .bt-main-split-handle:focus-visible {
  outline: none;
}

.page-backtest .bt-day-panel {
  flex: 1 1 50%;
  width: auto;
  min-width: 200px;
  max-width: none;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  border: 1px solid var(--bt-card-border);
  border-radius: 8px;
  background: var(--bt-card-bg);
  overflow: hidden;
}

.page-backtest .bt-day-panel-head {
  flex-shrink: 0;
  padding: 0.45rem 0.65rem;
  border-bottom: 1px solid var(--bt-border);
  background: color-mix(in srgb, var(--bt-panel-2) 65%, transparent);
}

.page-backtest .bt-day-head-bar {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
}

.page-backtest .bt-day-date-row {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-shrink: 0;
  margin-bottom: 0;
}

.page-backtest .bt-day-nav-btn,
.page-backtest .bt-day-lock-btn {
  width: 26px;
  height: 26px;
  padding: 0;
  border: 1px solid var(--bt-border);
  border-radius: 6px;
  background: var(--bt-panel-2);
  color: var(--bt-muted);
  cursor: pointer;
  font-size: 0.72rem;
  flex-shrink: 0;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.page-backtest .bt-day-nav-btn:hover,
.page-backtest .bt-day-lock-btn:hover {
  color: var(--bt-text);
  border-color: color-mix(in srgb, var(--bt-accent) 35%, var(--bt-border));
  background: var(--bt-hover);
}

.page-backtest .bt-day-lock-btn.is-locked {
  color: var(--bt-accent);
  border-color: color-mix(in srgb, var(--bt-accent) 45%, var(--bt-border));
  background: color-mix(in srgb, var(--bt-accent) 12%, var(--bt-panel-2));
}

.page-backtest .bt-day-panel .bt-detail-date {
  flex: 0 1 auto;
  min-width: 5.5rem;
  max-width: 8.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--bt-text);
  font-variant-numeric: tabular-nums;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-backtest .bt-day-summary-bar {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  justify-content: flex-end;
  gap: 0.4rem;
  min-width: 0;
  flex-wrap: wrap;
}

.page-backtest .bt-day-summary-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--bt-border);
  background: rgba(0, 0, 0, 0.12);
  white-space: nowrap;
}

.page-backtest .bt-day-summary-label {
  font-size: 0.66rem;
  color: var(--bt-muted);
  line-height: 1.2;
}

.page-backtest .bt-day-summary-value {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--bt-text);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

.page-backtest .bt-day-summary-value.is-up {
  color: var(--bt-profit);
}

.page-backtest .bt-day-summary-value.is-down {
  color: var(--bt-loss);
}

.page-backtest .bt-day-panel-body {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: 0.55rem 0.65rem 0.5rem;
}

.page-backtest .bt-day-panel-body .bt-detail-tabs {
  flex-shrink: 0;
  margin-bottom: 0.45rem;
}

.page-backtest .bt-day-panel-content {
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.page-backtest .bt-day-panel-content > div {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.page-backtest .bt-day-panel-content > div.hidden {
  display: none !important;
}

.page-backtest .bt-day-table-wrap {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}

.page-backtest .bt-day-table-wrap .bt-table {
  border-collapse: separate;
  border-spacing: 0;
}

.page-backtest .bt-day-table-wrap .bt-table thead th {
  position: sticky;
  top: 0;
  z-index: 4;
  background: var(--bt-panel);
  box-shadow: 0 1px 0 var(--bt-border), 0 4px 8px rgba(0, 0, 0, 0.18);
}

.page-backtest .bt-day-table-wrap .bt-table.bt-table--interactive thead th {
  padding: 0;
  vertical-align: middle;
}

.page-backtest .bt-day-table-wrap .bt-table thead th .bt-th-inner {
  background: var(--bt-panel);
}

.page-backtest .bt-day-funds {
  margin: 0;
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 0.05rem 0.05rem 0.15rem;
}

.page-backtest .bt-day-funds-hero {
  flex-shrink: 0;
  padding: 0.75rem 0.85rem;
  border-radius: 10px;
  border: 1px solid color-mix(in srgb, var(--bt-accent) 28%, var(--bt-card-border));
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--bt-accent) 10%, var(--bt-panel-2)),
    color-mix(in srgb, var(--bt-card-bg) 92%, transparent)
  );
}

.page-backtest .bt-day-funds-hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--bt-muted);
  letter-spacing: 0.02em;
}

.page-backtest .bt-day-funds-hero-label i {
  color: var(--bt-accent);
  font-size: 0.72rem;
}

.page-backtest .bt-day-funds-hero-value {
  margin-top: 0.35rem;
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  font-weight: 700;
  color: var(--bt-text);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

.page-backtest .bt-day-funds-alloc {
  flex-shrink: 0;
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  border: 1px solid var(--bt-card-border);
  background: color-mix(in srgb, var(--bt-panel-2) 35%, transparent);
}

.page-backtest .bt-day-funds-alloc-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.45rem;
}

.page-backtest .bt-day-funds-alloc-title {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--bt-text);
}

.page-backtest .bt-day-funds-alloc-meta {
  font-size: 0.64rem;
  color: var(--bt-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.page-backtest .bt-day-funds-alloc-bar {
  display: flex;
  height: 7px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.06);
}

.page-backtest .bt-day-funds-alloc-cash {
  display: block;
  height: 100%;
  background: var(--bt-accent);
  transition: width 0.25s ease;
}

.page-backtest .bt-day-funds-alloc-hold {
  display: block;
  height: 100%;
  background: color-mix(in srgb, var(--bt-profit) 85%, var(--bt-accent));
  transition: width 0.25s ease;
}

.page-backtest .bt-day-funds-alloc-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 0.4rem;
  font-size: 0.64rem;
  color: var(--bt-muted);
}

.page-backtest .bt-day-funds-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  margin-right: 0.28rem;
  vertical-align: middle;
}

.page-backtest .bt-day-funds-dot--cash {
  background: var(--bt-accent);
}

.page-backtest .bt-day-funds-dot--hold {
  background: color-mix(in srgb, var(--bt-profit) 85%, var(--bt-accent));
}

.page-backtest .bt-day-funds-grid {
  flex: 1 1 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.45rem;
  align-content: start;
}

.page-backtest .bt-day-funds-card {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.55rem 0.6rem;
  border-radius: 8px;
  border: 1px solid var(--bt-card-border);
  background: color-mix(in srgb, var(--bt-panel-2) 40%, transparent);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.page-backtest .bt-day-funds-card:hover {
  border-color: color-mix(in srgb, var(--bt-accent) 25%, var(--bt-card-border));
  background: color-mix(in srgb, var(--bt-accent) 5%, var(--bt-panel-2));
}

.page-backtest .bt-day-funds-card-icon {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  color: var(--bt-accent);
  background: color-mix(in srgb, var(--bt-accent) 14%, transparent);
  flex-shrink: 0;
}

.page-backtest .bt-day-funds-card-body {
  min-width: 0;
}

.page-backtest .bt-day-funds-card-label {
  font-size: 0.64rem;
  color: var(--bt-muted);
  line-height: 1.25;
}

.page-backtest .bt-day-funds-card-value {
  margin-top: 0.18rem;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--bt-text);
  font-variant-numeric: tabular-nums;
  line-height: 1.25;
  word-break: break-all;
}

.page-backtest .bt-day-funds-card-value.is-up {
  color: var(--bt-profit);
}

.page-backtest .bt-day-funds-card-value.is-down {
  color: var(--bt-loss);
}

.page-backtest .bt-day-panel .bt-detail-note {
  flex-shrink: 0;
  margin: 0.45rem 0 0;
  font-size: 0.68rem;
  color: var(--bt-muted);
  line-height: 1.45;
}

.page-backtest .bt-chart-height-split {
  position: relative;
  flex-shrink: 0;
  height: 10px;
  margin-top: 0.15rem;
  cursor: row-resize;
  touch-action: none;
  z-index: 2;
}

.page-backtest .bt-chart-height-split-line {
  position: absolute;
  left: 12px;
  right: 12px;
  top: 50%;
  height: 1px;
  margin-top: -0.5px;
  background: var(--bt-border);
  opacity: 0;
  transition: opacity 0.22s ease;
  pointer-events: none;
}

.page-backtest .bt-chart-height-split-handle {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 8px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--bt-panel);
  color: var(--bt-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 8px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
}

.page-backtest .bt-chart-height-split:hover .bt-chart-height-split-line,
.page-backtest .bt-chart-height-split:focus-visible .bt-chart-height-split-line,
.page-backtest .bt-chart-height-split.is-dragging .bt-chart-height-split-line {
  opacity: 1;
  background: color-mix(in srgb, var(--bt-accent) 55%, var(--bt-border));
}

.page-backtest .bt-chart-height-split:hover .bt-chart-height-split-handle,
.page-backtest .bt-chart-height-split:focus-visible .bt-chart-height-split-handle,
.page-backtest .bt-chart-height-split.is-dragging .bt-chart-height-split-handle {
  opacity: 1;
  border-color: color-mix(in srgb, var(--bt-accent) 40%, var(--bt-border));
  background: color-mix(in srgb, var(--bt-accent) 10%, var(--bt-panel));
  color: var(--bt-accent);
}

body.bt-row-split-dragging {
  cursor: row-resize !important;
  user-select: none;
}

body.bt-main-split-dragging {
  cursor: col-resize !important;
  user-select: none;
}

@media (max-width: 960px) {
  .page-backtest .bt-main-split {
    flex-direction: column;
    min-height: min(480px, 58vh);
  }

  .page-backtest .bt-main-split-handle {
    display: none;
  }

  .page-backtest .bt-day-panel {
    flex: 0 0 auto;
    width: 100%;
    max-width: none;
    min-height: 200px;
  }

  .page-backtest .bt-day-head-bar {
    flex-wrap: wrap;
  }

  .page-backtest .bt-day-summary-bar {
    justify-content: flex-start;
    width: 100%;
  }

  .page-backtest .bt-kpi-section.is-compact .bt-kpi-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* 图表 */
.page-backtest .bt-chart-card,
.page-backtest .bt-detail-card {
  background: var(--bt-card-bg);
  border: 1px solid var(--bt-card-border);
  border-radius: 8px;
  padding: clamp(0.65rem, 1vw, 0.85rem) clamp(0.85rem, 1.2vw, 1rem);
  margin-bottom: 0;
}

.page-backtest .bt-chart-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  margin-bottom: 0.55rem;
  flex-shrink: 0;
}

.page-backtest .bt-chart-head h2 {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--bt-text);
}

.page-backtest .bt-chart-head-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.65rem 0.85rem;
}

.page-backtest .bt-nav-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.75rem;
  min-height: 1.5rem;
}

.page-backtest .bt-nav-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.15rem 0.2rem;
  border: none;
  background: transparent;
  color: var(--bt-muted);
  font-size: 0.78rem;
  line-height: 1.2;
  cursor: pointer;
  border-radius: 4px;
  transition: color 0.15s, opacity 0.15s;
}

.page-backtest .bt-nav-legend-item:hover {
  color: var(--bt-text);
  background: var(--bt-hover);
}

.page-backtest .bt-nav-legend-item--hidden {
  opacity: 0.42;
}

.page-backtest .bt-nav-legend-item--hidden .bt-nav-legend-line {
  opacity: 0.35;
}

.page-backtest .bt-nav-legend-line {
  display: inline-block;
  width: 1.35rem;
  height: 2px;
  border-radius: 1px;
  flex-shrink: 0;
  transition: opacity 0.15s;
}

.page-backtest .bt-nav-legend-label {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.page-backtest .bt-chart-tools {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-backtest .bt-bench-select {
  min-width: 7rem;
  background: var(--bt-panel-2);
  border: 1px solid var(--bt-border);
  color: var(--bt-muted);
  border-radius: 6px;
  padding: 0.3rem 0.55rem;
  font-size: 0.78rem;
  cursor: not-allowed;
  opacity: 0.85;
}

.page-backtest .bt-icon-btn {
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--bt-border);
  border-radius: 6px;
  background: var(--bt-panel-2);
  color: var(--bt-muted);
  cursor: pointer;
  font-size: 0.82rem;
  transition: background 0.15s, color 0.15s;
}

.page-backtest .bt-icon-btn:hover {
  background: var(--bt-hover);
  color: var(--bt-accent);
}

.page-backtest .bt-chart-wrap {
  position: relative;
  flex: 0 0 auto;
  height: var(--bt-chart-default-h);
  min-height: 300px;
  overflow: hidden;
}

.page-backtest.bt-chart-sized .bt-chart-wrap {
  height: var(--bt-chart-h);
  min-height: 180px;
}

/* 主区与分析区之间的可拖拽分隔条 */
.page-backtest .bt-core-analysis-split {
  position: relative;
  flex-shrink: 0;
  height: 10px;
  margin: 0.1rem 0;
  cursor: row-resize;
  touch-action: none;
  z-index: 2;
}

.page-backtest .bt-core-analysis-split-line {
  position: absolute;
  left: 12px;
  right: 12px;
  top: 50%;
  height: 1px;
  margin-top: -0.5px;
  background: var(--bt-border);
  opacity: 0.35;
  transition: opacity 0.22s ease, background 0.22s ease;
  pointer-events: none;
}

.page-backtest .bt-core-analysis-split-handle {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 8px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--bt-panel);
  color: var(--bt-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 8px;
  opacity: 0.55;
  pointer-events: none;
  transition: opacity 0.22s ease, border-color 0.22s ease, background 0.22s ease, color 0.22s ease;
}

.page-backtest .bt-core-analysis-split:hover .bt-core-analysis-split-line,
.page-backtest .bt-core-analysis-split:focus-visible .bt-core-analysis-split-line,
.page-backtest .bt-core-analysis-split.is-dragging .bt-core-analysis-split-line {
  opacity: 1;
  background: color-mix(in srgb, var(--bt-accent) 55%, var(--bt-border));
}

.page-backtest .bt-core-analysis-split:hover .bt-core-analysis-split-handle,
.page-backtest .bt-core-analysis-split:focus-visible .bt-core-analysis-split-handle,
.page-backtest .bt-core-analysis-split.is-dragging .bt-core-analysis-split-handle {
  opacity: 1;
  border-color: color-mix(in srgb, var(--bt-accent) 40%, var(--bt-border));
  background: color-mix(in srgb, var(--bt-accent) 10%, var(--bt-panel));
  color: var(--bt-accent);
}

body.bt-core-analysis-dragging {
  cursor: row-resize !important;
  user-select: none;
}

.page-backtest .bt-timeline {
  margin-top: 0.35rem;
  padding-top: 0;
  border-top: none;
  flex-shrink: 0;
}

.page-backtest .bt-chart-card.bt-nav-wheel-pending .bt-chart-wrap,
.page-backtest .bt-chart-card.bt-nav-wheel-pending .bt-timeline-track {
  cursor: wait;
}

.page-backtest .bt-chart-card.bt-nav-wheel-armed .bt-timeline-track {
  cursor: ns-resize;
}

.page-backtest .bt-chart-wrap.bt-chart-interactive {
  cursor: crosshair;
}

.page-backtest .bt-chart-wrap.bt-chart-interactive canvas {
  cursor: crosshair;
}

.page-backtest .bt-chart-wrap.bt-chart-interactive.bt-chart-brushing,
.page-backtest .bt-chart-wrap.bt-chart-interactive.bt-chart-brushing canvas {
  cursor: ew-resize;
}

.page-backtest .bt-chart-wrap canvas {
  width: 100% !important;
  height: 100% !important;
}

.page-backtest .bt-chart-wrap.bt-chart-reveal {
  animation: btChartReveal 0.7s ease both;
}

@keyframes btChartReveal {
  from {
    opacity: 0;
    clip-path: inset(0 100% 0 0);
  }
  to {
    opacity: 1;
    clip-path: inset(0 0 0 0);
  }
}

/* 时间轴（紧凑） */
.page-backtest .bt-timeline-track {
  position: relative;
  height: 26px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.18);
  border: 1px solid var(--bt-border);
  overflow: hidden;
  touch-action: none;
  cursor: crosshair;
}

.page-backtest .bt-timeline-track canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.page-backtest .bt-timeline-shade {
  position: absolute;
  top: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.55);
  pointer-events: none;
  z-index: 1;
}

.page-backtest .bt-timeline-shade--left {
  left: 0;
}

.page-backtest .bt-timeline-shade--right {
  right: 0;
}

.page-backtest .bt-timeline-window {
  position: absolute;
  top: 0;
  bottom: 0;
  border: 1px solid var(--bt-accent);
  background: color-mix(in srgb, var(--bt-accent) 6%, transparent);
  z-index: 2;
  cursor: move;
}

.page-backtest .bt-timeline-track.bt-timeline-dragging-window,
.page-backtest .bt-timeline-track.bt-timeline-dragging-window .bt-timeline-window {
  cursor: move;
}

.page-backtest .bt-timeline-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 8px;
  cursor: ew-resize;
  z-index: 3;
}

.page-backtest .bt-timeline-handle--left {
  left: -4px;
}

.page-backtest .bt-timeline-handle--right {
  right: -4px;
}

.page-backtest .bt-timeline-handle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 2px;
  height: 14px;
  border-radius: 1px;
  background: var(--bt-accent);
  opacity: 0.85;
}

.page-backtest .bt-timeline-playhead {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  margin-left: -1px;
  background: var(--bt-nav-line);
  box-shadow: 0 0 4px rgba(248, 113, 113, 0.35);
  z-index: 4;
  cursor: ew-resize;
}

.page-backtest .bt-timeline-playhead::before {
  display: none;
}

/* 分析副图 */
.page-backtest .bt-analysis-card {
  flex: 0 0 auto;
  min-height: var(--bt-analysis-chart-h);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bt-card-bg);
  border: 1px solid var(--bt-card-border);
  border-radius: 8px;
  padding: clamp(0.5rem, 0.85vw, 0.65rem) clamp(0.85rem, 1.2vw, 1rem);
  margin-bottom: 0;
}

.page-backtest .bt-analysis-card.is-table-mode {
  min-height: var(--bt-analysis-table-h);
}

.page-backtest .bt-analysis-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.45rem;
  flex-shrink: 0;
}

.page-backtest .bt-analysis-body {
  flex: 1 1 auto;
  min-height: 0;
  margin-top: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.page-backtest.bt-day-panel-sized .bt-main-split-chart {
  flex: 1 1 auto;
}

.page-backtest.bt-day-panel-sized .bt-day-panel {
  flex: 0 0 var(--bt-day-panel-w);
  width: var(--bt-day-panel-w);
  max-width: 75%;
}

.page-backtest .bt-analysis-tabs {
  flex: 1;
  min-width: 0;
  flex-wrap: wrap;
  row-gap: 4px;
}

.page-backtest .bt-analysis-export-btn {
  flex-shrink: 0;
  padding: 0.38rem 0.85rem;
  border: 1px solid var(--bt-border);
  border-radius: 4px;
  background: var(--bt-card-bg);
  color: var(--bt-text);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.page-backtest .bt-analysis-export-btn:hover:not(:disabled) {
  background: var(--bt-hover);
  border-color: var(--bt-accent);
  color: var(--bt-accent);
}

.page-backtest .bt-analysis-export-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.page-backtest .bt-analysis-export-btn.is-loading {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  opacity: 1;
  cursor: wait;
  border-color: color-mix(in srgb, var(--bt-accent) 35%, var(--bt-border));
  color: var(--bt-accent);
  background: color-mix(in srgb, var(--bt-accent) 8%, var(--bt-card-bg));
}

.page-backtest .bt-analysis-export-btn.is-loading:disabled {
  opacity: 1;
  cursor: wait;
}

.page-backtest .bt-analysis-export-btn.is-loading i {
  font-size: 0.78rem;
}

.page-backtest .bt-analysis-wrap {
  position: relative;
  flex: 1 1 auto;
  min-height: min(140px, 16vh);
  height: auto;
}

.page-backtest .bt-analysis-card.is-chart-mode .bt-analysis-wrap {
  flex: 0 0 auto;
  height: var(--bt-analysis-chart-h);
  min-height: min(240px, 28vh);
  max-height: var(--bt-analysis-chart-h);
}

.page-backtest .bt-analysis-table-wrap {
  position: absolute;
  inset: 0;
  overflow: auto;
}

.page-backtest .bt-analysis-table-wrap .bt-table-wrap {
  max-height: none;
  /* 滚动交给外层 .bt-analysis-table-wrap，避免嵌套 overflow 导致 thead sticky 失效 */
  overflow: visible;
}

.page-backtest .bt-analysis-table-wrap .bt-table {
  /* border-collapse: collapse 会阻止 thead position:sticky */
  border-collapse: separate;
  border-spacing: 0;
}

.page-backtest .bt-analysis-table-wrap .bt-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--bt-panel);
  box-shadow: 0 1px 0 var(--bt-border), 0 4px 8px rgba(0, 0, 0, 0.18);
}

.page-backtest .bt-analysis-table-wrap .bt-table thead th .bt-th-inner {
  background: var(--bt-panel);
}

.page-backtest .bt-analysis-table-wrap.hidden {
  display: none;
}

.page-backtest .bt-analysis-wrap.is-table-mode {
  flex: 1 1 auto;
  min-height: min(480px, 50vh);
  height: auto;
}

.page-backtest .bt-analysis-wrap canvas.hidden {
  display: none;
}

.page-backtest .bt-analysis-wrap canvas {
  width: 100% !important;
  height: 100% !important;
}

/* 基准配置弹窗 */
.page-backtest .bt-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
}

.page-backtest .bt-modal {
  width: min(520px, 100%);
  max-height: min(85vh, 640px);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  border-radius: 10px;
  border: 1px solid var(--bt-border);
  background: var(--bt-panel);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
}

.page-backtest .bt-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--bt-border);
  background: var(--bt-panel-2);
}

.page-backtest .bt-modal-head h3 {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--bt-text);
}

.page-backtest .bt-modal-close {
  width: 30px;
  height: 30px;
  padding: 0;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--bt-muted);
  cursor: pointer;
}

.page-backtest .bt-modal-close:hover {
  background: var(--bt-hover);
  color: var(--bt-text);
}

.page-backtest .bt-modal-body {
  padding: 1rem;
  overflow-y: auto;
}

.page-backtest .bt-modal-desc {
  margin: 0 0 0.85rem;
  font-size: 0.78rem;
  color: var(--bt-muted);
  line-height: 1.55;
}

.page-backtest .bt-modal-desc code {
  font-size: 0.72rem;
  color: var(--bt-accent);
}

.page-backtest .bt-bench-form-item {
  padding: 0.75rem;
  margin-bottom: 0.65rem;
  border-radius: 8px;
  border: 1px solid var(--bt-border);
  background: var(--bt-kpi-bg);
}

.page-backtest .bt-bench-form-title {
  margin: 0 0 0.55rem;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--bt-accent);
  letter-spacing: 0.04em;
}

.page-backtest .bt-field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 0.5rem;
  font-size: 0.78rem;
  color: var(--bt-muted);
}

.page-backtest .bt-field input,
.page-backtest .bt-field select {
  background: var(--bt-panel-2);
  border: 1px solid var(--bt-border);
  color: var(--bt-text);
  border-radius: 5px;
  padding: 0.35rem 0.55rem;
  font-size: 0.82rem;
}

.page-backtest .bt-bench-form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.page-backtest .bt-btn {
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--bt-border);
}

.page-backtest .bt-btn--ghost {
  background: transparent;
  color: var(--bt-muted);
}

.page-backtest .bt-btn--ghost:hover {
  background: var(--bt-hover);
  color: var(--bt-text);
}

.page-backtest .bt-btn--primary {
  background: var(--bt-accent);
  color: var(--bt-accent-fg);
  border-color: transparent;
}

.page-backtest .bt-btn--primary:hover {
  background: var(--bt-accent-hover);
}

/* 明细 */
.page-backtest .bt-detail-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.65rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--bt-border);
}

.page-backtest .bt-detail-tabs {
  display: flex;
  gap: 2px;
}

.page-backtest .bt-nav-btn {
  padding: 0.4rem 0.75rem;
  margin: 0;
  border: none;
  border-radius: 4px;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--bt-muted);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.page-backtest .bt-nav-btn:hover {
  color: var(--bt-text);
  background: var(--bt-hover);
}

.page-backtest .bt-nav-btn.active {
  color: var(--bt-text);
  background: var(--bt-hover);
  border-bottom-color: var(--bt-accent);
}

.page-backtest .bt-detail-meta {
  text-align: right;
}

.page-backtest .bt-detail-date {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--bt-text);
}

.page-backtest .bt-detail-note {
  font-size: 0.72rem;
  color: var(--bt-muted);
  margin-top: 0.15rem;
}

.page-backtest .bt-table-wrap {
  overflow-x: auto;
  max-height: min(360px, 38vh);
  overflow-y: auto;
}

.page-backtest .bt-table {
  width: 100%;
  font-size: 0.82rem;
  color: var(--bt-text);
  border-collapse: collapse;
}

.page-backtest .bt-table.bt-table--wide {
  width: max-content;
  min-width: 100%;
}

.page-backtest .bt-table th,
.page-backtest .bt-table td {
  padding: 0.5rem 0.85rem;
  border-bottom: 1px solid var(--bt-border);
  white-space: nowrap;
}

.page-backtest .bt-table.bt-table--interactive {
  width: max-content;
  min-width: 100%;
}

.page-backtest .bt-table.bt-table--interactive th {
  padding: 0;
  vertical-align: middle;
}

.page-backtest .bt-th-inner {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  min-height: 2.1rem;
  padding: 0.35rem 0.5rem 0.35rem 0.65rem;
}

.page-backtest .bt-th-sort {
  flex: 1;
  min-width: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: none;
  background: transparent;
  color: inherit;
  font: inherit;
  font-weight: 600;
  padding: 0.15rem 0.25rem;
  margin: 0;
  cursor: pointer;
  text-align: left;
  border-radius: 4px;
}

.page-backtest .bt-th-sort:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--bt-text);
}

.page-backtest .bt-th-label {
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-backtest .bt-th-sort-icon {
  flex-shrink: 0;
  font-size: 0.72rem;
  opacity: 0.55;
}

.page-backtest .bt-th-filter {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.55rem;
  height: 1.55rem;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--bt-muted);
  cursor: pointer;
  font-size: 0.72rem;
}

.page-backtest .bt-th-filter:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--bt-text);
}

.page-backtest .bt-th-filter.is-active {
  color: var(--bt-accent, #818cf8);
  background: rgba(129, 140, 248, 0.15);
}

.page-backtest .bt-th-filter-menu {
  position: fixed;
  z-index: 3000;
  width: min(280px, calc(100vw - 16px));
  max-height: min(360px, 60vh);
  display: flex;
  flex-direction: column;
  border-radius: 8px;
  border: 1px solid var(--bt-border);
  background: var(--bt-panel);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  font-size: 0.82rem;
  color: var(--bt-text);
}

.page-backtest .bt-th-filter-menu__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.55rem 0.65rem;
  border-bottom: 1px solid var(--bt-border);
}

.page-backtest .bt-th-filter-menu__title {
  font-weight: 600;
  color: var(--bt-text);
}

.page-backtest .bt-th-filter-menu__close {
  border: none;
  background: transparent;
  color: var(--bt-muted);
  cursor: pointer;
  padding: 0.2rem 0.35rem;
  border-radius: 4px;
}

.page-backtest .bt-th-filter-menu__search {
  margin: 0.5rem 0.65rem 0;
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--bt-border);
  background: rgba(0, 0, 0, 0.2);
  color: var(--bt-text);
  font: inherit;
}

.page-backtest .bt-th-filter-menu__actions {
  display: flex;
  gap: 0.5rem;
  padding: 0.45rem 0.65rem 0.25rem;
}

.page-backtest .bt-th-filter-menu__actions button {
  border: none;
  background: transparent;
  color: var(--bt-accent, #818cf8);
  cursor: pointer;
  font: inherit;
  font-size: 0.78rem;
  padding: 0;
}

.page-backtest .bt-th-filter-menu__list {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 0.25rem 0.65rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.page-backtest .bt-th-filter-check {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.2rem 0.15rem;
  cursor: pointer;
  user-select: none;
}

.page-backtest .bt-th-filter-check__text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.page-backtest .bt-th-filter-menu__foot {
  padding: 0.5rem 0.65rem 0.65rem;
  border-top: 1px solid var(--bt-border);
}

.page-backtest .bt-th-filter-menu__apply {
  width: 100%;
  padding: 0.4rem 0.65rem;
  border: none;
  border-radius: 6px;
  background: var(--bt-accent, #6366f1);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.page-backtest .bt-th-filter-menu__apply:hover {
  filter: brightness(1.08);
}

.page-backtest .bt-table th {
  color: var(--bt-muted);
  font-weight: 600;
  text-align: left;
}

.page-backtest .bt-day-table-wrap .bt-table thead th,
.page-backtest .bt-analysis-table-wrap .bt-table thead th {
  position: sticky;
  top: 0;
}

.page-backtest .bt-side-buy {
  color: #38bdf8;
  font-weight: 600;
}

.page-backtest .bt-side-sell {
  color: #fb923c;
  font-weight: 600;
}

.page-backtest .bt-pnl-profit {
  color: var(--bt-profit);
  font-weight: 600;
}

.page-backtest .bt-pnl-loss {
  color: var(--bt-loss);
  font-weight: 600;
}

.page-backtest .bt-empty {
  color: var(--bt-muted);
  font-size: 0.85rem;
  padding: 1rem 0;
}

.page-backtest .bt-label-muted {
  font-size: 0.78rem;
  color: var(--bt-muted);
  margin-bottom: 0;
}

.page-backtest .hidden {
  display: none !important;
}

/* 状态栏 */
.page-backtest .bt-statusbar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  min-height: var(--bt-status);
  padding: 0 clamp(0.65rem, 1.2vw, 1rem);
  border-top: 1px solid var(--bt-border);
  background: var(--bt-panel);
  color: var(--bt-muted);
  font-size: 0.72rem;
}

.page-backtest .bt-statusbar i {
  margin-right: 0.35rem;
  opacity: 0.75;
}

@media (max-width: 768px) {
  .page-backtest .bt-detail-meta {
    width: 100%;
    text-align: left;
  }

  .page-backtest .bt-explorer-toggle {
    left: var(--bt-activity);
  }
}

/* 手机：报告列表改为叠层抽屉；主区单栏滚动（仅 .page-backtest） */
@media (max-width: 767px) {
  .page-backtest {
    height: 100dvh;
    --bt-chart-h: min(280px, 36vh);
    --bt-chart-default-h: min(280px, 36vh);
    --bt-core-h: auto;
    --bt-main-min-h: 0;
  }

  .page-backtest .bt-app {
    position: relative;
    overflow: hidden;
  }

  .page-backtest .bt-sidebar-split {
    display: none !important;
  }

  .page-backtest .bt-sidebar {
    position: fixed;
    top: var(--ws-topbar-h, 44px);
    left: 0;
    bottom: 0;
    z-index: 1080;
    width: min(86vw, 300px);
    max-width: 300px;
    background: var(--bt-panel);
    box-shadow: 8px 0 28px rgba(0, 0, 0, 0.3);
    transform: translateX(0);
  }

  .page-backtest .bt-app.is-explorer-collapsed .bt-sidebar {
    transform: translateX(-100%);
    pointer-events: none;
    box-shadow: none;
  }

  .page-backtest .bt-app.is-explorer-collapsed .bt-explorer-toggle {
    display: flex !important;
    left: 0.35rem;
    top: 0.45rem;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    z-index: 1070;
  }

  .page-backtest .bt-workspace {
    width: 100%;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .page-backtest .bt-workspace-head {
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.55rem 0.65rem;
  }

  .page-backtest .bt-page-title {
    font-size: 1rem;
  }

  .page-backtest .bt-params-panel .bt-params-grid,
  .page-backtest .bt-params-body {
    grid-template-columns: 1fr !important;
  }

  .page-backtest .bt-kpi-section.is-compact .bt-kpi-grid,
  .page-backtest .bt-kpi-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }

  .page-backtest .bt-main-split {
    flex-direction: column;
    min-height: 0;
  }

  .page-backtest .bt-main-split-handle,
  .page-backtest .bt-row-split-handle {
    display: none !important;
  }

  .page-backtest .bt-day-panel {
    width: 100% !important;
    max-width: none !important;
    min-height: 200px;
  }

  .page-backtest .bt-chart-card,
  .page-backtest .bt-detail-card {
    overflow-x: auto;
  }

  .page-backtest .bt-statusbar {
    font-size: 0.68rem;
    padding-bottom: max(0.2rem, env(safe-area-inset-bottom));
  }

  /* 简化：收起活动条占位；时间轴去掉刷选手柄视觉负担 */
  .page-backtest .bt-activity-bar {
    display: none;
  }

  .page-backtest .bt-app.is-explorer-collapsed .bt-explorer-toggle {
    left: 0.35rem;
  }

  .page-backtest .bt-timeline-handle {
    width: 18px;
    min-width: 18px;
  }

  .page-backtest .bt-analysis-head {
    flex-wrap: nowrap;
    gap: 0.4rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .page-backtest .bt-analysis-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .page-backtest .bt-analysis-export-btn {
    flex-shrink: 0;
  }

  .page-backtest .bt-day-head-bar,
  .page-backtest .bt-chart-head {
    flex-wrap: wrap;
  }

  .page-backtest .bt-table-wrap,
  .page-backtest .bt-analysis-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .page-backtest .bt-params-actions {
    flex-wrap: wrap;
  }

  .page-backtest .bt-params-run,
  .page-backtest .bt-params-reset {
    min-height: 40px;
  }
}

/* 逐步研究 — 单元格回测预览卡（配色见 strategy_workshop.css --xtnb-bt-*） */
.page-research-notebook .xtnb-bt-preview,
.page-strategy-workshop .xtnb-bt-preview {
  margin-top: 0.65rem;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--xtnb-bt-preview-border);
  background: var(--xtnb-bt-preview-bg);
  overflow: hidden;
  animation: xtnbBtPreviewIn 0.55s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes xtnbBtPreviewIn {
  from {
    opacity: 0;
    transform: translateY(16px);
    max-height: 0;
  }
  to {
    opacity: 1;
    transform: translateY(0);
    max-height: 240px;
  }
}

.page-research-notebook .xtnb-bt-preview-head,
.page-strategy-workshop .xtnb-bt-preview-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--xtnb-bt-preview-head);
  margin-bottom: 0.65rem;
}

.xtnb-bt-preview-head .xtnb-bt-sparkle {
  display: inline-block;
  animation: xtnbBtSparkle 1.2s ease-in-out infinite;
}

.page-research-notebook .xtnb-bt-preview-tag,
.page-strategy-workshop .xtnb-bt-preview-tag {
  margin-left: auto;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--xtnb-bt-preview-tag);
  opacity: 0.92;
}

@keyframes xtnbBtSparkle {
  0%,
  100% {
    opacity: 0.5;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.15);
  }
}

.xtnb-bt-kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

@media (max-width: 520px) {
  .xtnb-bt-kpi-grid {
    gap: 0.35rem;
  }
  .page-research-notebook .xtnb-bt-kpi-item,
  .page-strategy-workshop .xtnb-bt-kpi-item {
    padding: 0.35rem 0.4rem;
  }
  .page-research-notebook .xtnb-bt-kpi-label,
  .page-strategy-workshop .xtnb-bt-kpi-label {
    font-size: 0.62rem;
  }
  .page-research-notebook .xtnb-bt-kpi-val,
  .page-strategy-workshop .xtnb-bt-kpi-val {
    font-size: 0.82rem;
  }
}

.page-research-notebook .xtnb-bt-kpi-item,
.page-strategy-workshop .xtnb-bt-kpi-item {
  padding: 0.45rem 0.55rem;
  border-radius: 6px;
  background: var(--xtnb-bt-kpi-bg);
  animation: xtnbBtKpiStagger 0.4s ease both;
}

.xtnb-bt-kpi-item:nth-child(1) {
  animation-delay: 0.05s;
}
.xtnb-bt-kpi-item:nth-child(2) {
  animation-delay: 0.1s;
}
.xtnb-bt-kpi-item:nth-child(3) {
  animation-delay: 0.15s;
}
.xtnb-bt-kpi-item:nth-child(4) {
  animation-delay: 0.2s;
}

@keyframes xtnbBtKpiStagger {
  from {
    opacity: 0;
    transform: translateX(-8px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.page-research-notebook .xtnb-bt-kpi-label,
.page-strategy-workshop .xtnb-bt-kpi-label {
  font-size: 0.68rem;
  color: var(--xtnb-bt-kpi-label);
}

.page-research-notebook .xtnb-bt-kpi-val,
.page-strategy-workshop .xtnb-bt-kpi-val {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--xtnb-bt-kpi-val);
  font-variant-numeric: tabular-nums;
}

.page-research-notebook .xtnb-bt-detail-btn,
.page-strategy-workshop .xtnb-bt-detail-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.85rem;
  border-radius: 6px;
  border: 1px solid var(--xtnb-bt-btn-border);
  background: var(--xtnb-bt-btn-bg);
  color: var(--xtnb-bt-btn-color);
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s, color 0.2s;
}

.page-research-notebook .xtnb-bt-detail-btn:hover,
.page-strategy-workshop .xtnb-bt-detail-btn:hover {
  background: var(--xtnb-bt-btn-hover-bg);
  color: var(--xtnb-bt-btn-hover-color);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px var(--xtnb-bt-btn-shadow);
}

.page-research-notebook .xtnb-tree-section-label,
.page-strategy-workshop .xtnb-tree-section-label {
  padding: 0.45rem 0.65rem 0.2rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: #64748b;
  text-transform: uppercase;
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  margin-top: 0.35rem;
}

.page-research-notebook .xtnb-tree-row.is-readonly .xtnb-tree-op,
.page-strategy-workshop .xtnb-tree-row.is-readonly .xtnb-tree-op {
  display: none !important;
}

.page-research-notebook .xtnb-tree-row.is-readonly,
.page-strategy-workshop .xtnb-tree-row.is-readonly {
  cursor: pointer;
}

.xtnb-bt-detail-btn--muted {
  opacity: 0.65;
  cursor: default;
  pointer-events: none;
}

.page-research-notebook .xtnb-cell.has-bt-preview .xtnb-cell-out,
.page-strategy-workshop .xtnb-cell.has-bt-preview .xtnb-cell-out {
  max-height: 280px;
  overflow: auto;
}