/* ========================================
   电耗油耗计算器 - 页面样式
   ======================================== */

.tool-card-panel {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
}

.form-input-suffix {
  position: relative;
  display: flex;
  align-items: center;
}

.form-input-suffix .form-input {
  padding-right: var(--space-16);
  flex: 1;
}

.form-suffix {
  position: absolute;
  right: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  pointer-events: none;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.result-section {
  margin-top: var(--space-6);
  animation: fadeSlideUp 0.3s ease;
}

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.form-input-error {
  border-color: var(--color-danger) !important;
}

.form-input-error:focus {
  box-shadow: 0 0 0 3px var(--color-danger-light) !important;
}