.cb-section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

.cb-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 20px;
}

.cb-card {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--card-bg);
  padding: 20px;
}

.cb-card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 14px;
}

.cb-mt {
  margin-top: 22px;
}

.cb-field {
  margin-bottom: 14px;
}

.cb-field label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.cb-field input,
.cb-field select {
  width: 100%;
  box-sizing: border-box;
  padding: 9px 10px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-color);
  color: var(--text-primary);
  font-size: 14px;
}

.cb-field input:focus,
.cb-field select:focus {
  outline: none;
  border-color: var(--primary-color);
}

.cb-presets {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
}

.cb-presets-label {
  font-size: 12px;
  color: var(--text-tertiary);
}

.cb-preset-btn {
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.cb-preset-btn:hover {
  border-color: var(--primary-color);
  color: var(--text-primary);
}

.cb-summary {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}

.cb-summary-item {
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 12px;
  background: var(--bg-color);
}

.cb-summary-label {
  display: block;
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 4px;
}

.cb-summary-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.cb-summary-value.cb-negative {
  color: var(--danger-color);
}

.cb-bar {
  display: flex;
  width: 100%;
  height: 28px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: var(--bg-color);
}

.cb-bar-placeholder {
  text-align: center;
  color: var(--text-tertiary);
  font-size: 13px;
  padding: 10px 0;
}

.cb-seg {
  height: 100%;
  width: 0%;
  transition: width 0.2s ease;
}

.cb-seg-system { background: var(--primary-color); }
.cb-seg-rag { background: var(--accent-color); }
.cb-seg-history { background: var(--warning-color); }
.cb-seg-output { background: var(--success-color); }
.cb-seg-free { background: transparent; }

.cb-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 14px;
  font-size: 12px;
  color: var(--text-secondary);
}

.cb-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.cb-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.cb-dot-system { background: var(--primary-color); }
.cb-dot-rag { background: var(--accent-color); }
.cb-dot-history { background: var(--warning-color); }
.cb-dot-output { background: var(--success-color); }
.cb-dot-free { background: var(--border-color); }

.cb-warning {
  margin-top: 16px;
  border: 1px solid var(--danger-color);
  border-radius: 10px;
  background: rgba(220, 38, 38, 0.08);
  color: var(--danger-color);
  padding: 12px 14px;
  font-size: 13px;
}

@media (max-width: 800px) {
  .cb-grid {
    grid-template-columns: 1fr;
  }
  .cb-summary {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 420px) {
  .cb-summary {
    grid-template-columns: 1fr;
  }
}