.btn-ai-optimize {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #FFFFFF;
  border: none;
  padding: 16px 32px;
  border-radius: 16px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 12px 28px rgba(102, 126, 234, 0.35);
  transition: all 0.3s ease;
  margin: 20px 0;
  width: 100%;
  justify-content: center;
}

.btn-ai-optimize:hover:not(:disabled) {
  background: linear-gradient(135deg, #5568d3 0%, #6a3f91 100%);
  box-shadow: 0 16px 30px rgba(102, 126, 234, 0.45);
  transform: translateY(-2px);
}

.btn-ai-optimize:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.btn-ai-optimize .btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-ai-optimize .btn-icon svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
}

.btn-ai-optimize .btn-badge {
  background: rgba(255, 255, 255, 0.18);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
}

.optimization-success {
  background: #FFFFFF;
  border-radius: 20px;
  padding: 24px;
  margin: 20px 0;
  border: 1px solid var(--neutral-200);
  box-shadow: 0 18px 36px rgba(28, 28, 30, 0.1);
  animation: slideIn 0.45s ease-out;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.optimization-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--neutral-200);
}

.optimization-header h3 {
  margin: 0;
  font-size: 24px;
  color: var(--neutral-800);
}

.optimization-header .section-title {
  margin: 0;
}

.optimization-title-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--primary-blue);
}

.ai-badge {
  background: var(--neutral-100);
  color: var(--neutral-600);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
}

.key-metrics-hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin: 24px 0;
}

.hero-metric {
  background: #FFFFFF;
  border-radius: 18px;
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  box-shadow: 0 14px 30px rgba(28, 28, 30, 0.12);
  border: 1px solid var(--neutral-200);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hero-metric:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(28, 28, 30, 0.15);
}

.hero-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: var(--neutral-100);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.hero-icon .svg-icon svg {
  width: 26px;
  height: 26px;
  stroke: var(--neutral-600);
}

.hero-content {
  flex: 1;
}

.hero-label {
  font-size: 14px;
  color: #718096;
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--neutral-800);
  line-height: 1.2;
  margin-bottom: 4px;
}

.hero-detail {
  font-size: 13px;
  color: var(--neutral-500);
  font-weight: 500;
}

.hero-detail.positive {
  color: var(--success-600);
}

.hero-detail.negative {
  color: var(--error-500);
}

.hero-detail.commercial-needed {
  color: var(--error-500);
  font-weight: 600;
}

.key-metrics-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin: 20px 0;
  padding: 20px;
  background: var(--neutral-100);
  border-radius: 16px;
}

.metric-card {
  background: #FFFFFF;
  padding: 18px 20px;
  border-radius: 14px;
  text-align: center;
  box-shadow: 0 10px 24px rgba(28, 28, 30, 0.08);
  border: 1px solid var(--neutral-200);
  transition: all 0.3s ease;
  cursor: pointer;
}

.metric-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(28, 28, 30, 0.15);
  border-color: var(--primary-blue);
}

.metric-card.highlight {
  border-color: var(--primary-blue);
  background: var(--primary-blue-soft);
}

.metric-label {
  display: block;
  font-size: 13px;
  color: #718096;
  margin-bottom: 8px;
  font-weight: 500;
}

.metric-value {
  display: block;
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-blue);
}

.metric-card.highlight .metric-value {
  color: var(--primary-blue);
}

.optimization-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.optimization-section {
  background: #FFFFFF;
  border-radius: 18px;
  padding: 24px;
  border: 1px solid var(--neutral-200);
  box-shadow: 0 12px 28px rgba(28, 28, 30, 0.08);
}

.optimization-section h4 {
  margin: 0 0 16px 0;
}

.plan-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.plan-list li {
  padding: 12px 16px;
  background: #FFFFFF;
  border-radius: 12px;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 10px 20px rgba(28, 28, 30, 0.06);
  border: 1px solid var(--neutral-200);
  transition: all 0.3s ease;
  cursor: pointer;
}

.plan-list li:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(28, 28, 30, 0.12);
  border-color: var(--primary-blue);
}

.year-range {
  color: var(--neutral-600);
  font-weight: 600;
}

.roi-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto;
  gap: 16px;
  align-items: center;
}

.roi-item {
  background: #FFFFFF;
  padding: 16px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 12px 24px rgba(28, 28, 30, 0.08);
  border: 1px solid var(--neutral-200);
  transition: all 0.3s ease;
  cursor: pointer;
}

.roi-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(28, 28, 30, 0.12);
  border-color: var(--primary-blue);
}

.roi-label {
  display: block;
  font-size: 13px;
  color: var(--neutral-500);
  margin-bottom: 8px;
}

.roi-value {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--primary-blue);
}

.roi-arrow {
  font-size: 32px;
  color: var(--neutral-400);
  font-weight: 700;
}

.roi-improvement {
  grid-column: 4;
  text-align: center;
}

.improvement-badge {
  display: inline-block;
  background: var(--neutral-100);
  color: var(--primary-blue);
  padding: 8px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 16px;
}

.gap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.gap-item {
  background: #FFFFFF;
  padding: 18px;
  border-radius: 14px;
  text-align: center;
  box-shadow: 0 12px 24px rgba(28, 28, 30, 0.08);
  border: 1px solid var(--neutral-200);
  transition: all 0.3s ease;
  cursor: pointer;
}

.gap-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(28, 28, 30, 0.12);
}

.gap-item.neutral {
  border-color: var(--neutral-200);
}

.gap-item.insufficient {
  border-color: var(--error-500);
}

.gap-item.sufficient {
  border-color: var(--success-500);
}

.gap-description {
  display: block;
  font-size: 12px;
  color: #718096;
  margin-top: 4px;
  font-weight: 500;
}

.gap-label {
  display: block;
  font-size: 13px;
  color: var(--neutral-500);
  margin-bottom: 8px;
}

.gap-value {
  display: block;
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-blue);
}

.gap-item.insufficient .gap-value {
  color: var(--error-500);
}

.gap-item.sufficient .gap-value {
  color: var(--success-600);
}

.commercial-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}

.commercial-item {
  background: #FFFFFF;
  padding: 18px;
  border-radius: 14px;
  text-align: center;
  box-shadow: 0 12px 24px rgba(28, 28, 30, 0.08);
  border: 1px solid var(--neutral-200);
  transition: all 0.3s ease;
  cursor: pointer;
}

.commercial-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(28, 28, 30, 0.12);
  border-color: var(--primary-blue);
}

.commercial-label {
  display: block;
  font-size: 13px;
  color: var(--neutral-500);
  margin-bottom: 8px;
}

.commercial-value {
  display: block;
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-blue);
}

.commercial-value.highlight {
  color: var(--primary-blue);
}

.commercial-note {
  background: var(--neutral-100);
  padding: 14px 16px;
  border-radius: 12px;
  margin: 0;
  font-size: 14px;
  color: var(--neutral-600);
}

.insights-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.insights-list li {
  padding: 14px 18px;
  background: #FFFFFF;
  border-radius: 14px;
  margin-bottom: 10px;
  line-height: 1.6;
  box-shadow: 0 10px 24px rgba(28, 28, 30, 0.08);
  border: 1px solid var(--neutral-200);
  transition: all 0.3s ease;
  cursor: pointer;
}

.insights-list li:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(28, 28, 30, 0.12);
  border-color: var(--primary-blue);
}

.optimization-raw {
  margin-top: 24px;
  border-top: 1px solid var(--neutral-200);
  padding-top: 24px;
}

.optimization-raw h4 {
  margin: 0 0 16px 0;
}

/* Removed details/summary collapse - show full content */
.optimization-raw details {
  cursor: default;
}

.optimization-raw details[open] summary {
  margin-bottom: 16px;
}

.optimization-raw summary {
  display: none; /* Hide the summary toggle */
}

.raw-content {
  margin-top: 16px;
  padding: 16px;
  background: #f9fafb;
  border-radius: 8px;
  line-height: 1.8;
  white-space: pre-wrap;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.raw-content pre {
  background: #2d3748;
  color: #e2e8f0;
  padding: 16px;
  border-radius: 8px;
  overflow-x: auto;
}

.raw-content p {
  margin: 8px 0;
}

.raw-content strong {
  color: #2d3748;
  font-weight: 700;
}

.raw-content em {
  color: #2196F3;
  font-style: italic;
}

.raw-content li {
  margin: 4px 0;
}

.optimization-footer {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--neutral-200);
  text-align: center;
}

.usage-info {
  font-size: 12px;
  color: var(--neutral-500);
  margin: 0;
}

.optimization-error {
  background: #FFFFFF;
  border: 1px solid var(--neutral-200);
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  margin: 20px 0;
  box-shadow: 0 12px 28px rgba(28, 28, 30, 0.08);
}

.error-icon {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: var(--neutral-100);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.error-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--error-500);
  fill: none;
}

.optimization-error h3 {
  color: var(--error-600);
  margin: 0 0 8px 0;
}

.optimization-error p {
  color: var(--neutral-600);
  margin: 0 0 16px 0;
}

.fallback-content {
  background: #FFFFFF;
  padding: 20px;
  border-radius: 14px;
  margin-top: 16px;
  text-align: left;
  white-space: pre-wrap;
  line-height: 1.8;
  border: 1px solid var(--neutral-200);
}

/* AI优化区域容器样式 */
#aiOptimizationSection {
  background: #FFFFFF;
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 18px 36px rgba(28, 28, 30, 0.1);
  border: 1px solid var(--neutral-200);
}

#aiOptimizationButton {
  margin-bottom: 24px;
}

/* 提升视觉层次 */
.optimization-section h4 {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 加载状态优化 */
.btn-ai-optimize:disabled .btn-icon {
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.roi-bar-chart {
  display: flex;
  align-items: flex-end;
  justify-content: space-around;
  gap: 40px;
  padding: 40px 20px 20px;
  background: #FFFFFF;
  border-radius: 18px;
  position: relative;
  min-height: 300px;
  border: 1px solid var(--neutral-200);
  box-shadow: 0 12px 28px rgba(28, 28, 30, 0.08);
}

.bar-container {
  flex: 1;
  max-width: 200px;
  text-align: center;
}

.bar-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--neutral-600);
  margin-bottom: 12px;
}

.bar-wrapper {
  height: 200px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.bar {
  width: 100%;
  max-width: 120px;
  border-radius: 8px 8px 0 0;
  position: relative;
  transition: all 0.5s ease;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12px;
}

.bar.current {
  background: linear-gradient(180deg, var(--neutral-200) 0%, var(--neutral-300) 100%);
}

.bar.optimized {
  background: linear-gradient(180deg, var(--primary-blue) 0%, var(--primary-blue-hover) 100%);
  animation: grow 0.8s ease-out;
}

@keyframes grow {
  from { height: 0; }
  to { height: 100%; }
}

.bar-value {
  font-size: 20px;
  font-weight: 700;
}

.bar.current .bar-value {
  color: var(--neutral-800);
}

.bar.optimized .bar-value {
  color: #FFFFFF;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.25);

.improvement-arrow {
  position: absolute;
  top: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.improvement-label {
  background: var(--neutral-100);
  color: var(--neutral-600);
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  box-shadow: none;
}

.section-hint {
  margin-top: 12px;
  padding: 12px 16px;
  background: var(--neutral-100);
  border-radius: 14px;
  font-size: 0.92em;
  color: var(--neutral-600);
  line-height: 1.5;
}

.pension-gap-chart {
  background: #FFFFFF;
  border-radius: 18px;
  padding: 24px;
  border: 1px solid var(--neutral-200);
  box-shadow: 0 12px 28px rgba(28, 28, 30, 0.08);
}

.gap-visual {
  margin-bottom: 24px;
}

.gap-bar {
  display: flex;
  height: 72px;
  border-radius: 16px;
  overflow: hidden;
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
  margin-bottom: 16px;
}

.gap-segment {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.5s ease;
  position: relative;
}

.gap-segment.social {
  background: var(--primary-blue-soft);
  color: var(--primary-blue-hover);
}

.gap-segment.missing {
  background: var(--error-50);
  color: var(--error-500);
}

.segment-label {
  color: inherit;
  font-weight: 600;
  font-size: 14px;
  text-align: center;
  padding: 0 12px;
}

.gap-target {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
}

.target-line {
  flex: 1;
  height: 2px;
  background: var(--neutral-200);
}

.target-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--neutral-600);
  white-space: nowrap;
}

.commercial-solution {
  background: #FFFFFF;
  border: 1px solid var(--neutral-200);
  border-radius: 18px;
  padding: 24px;
  margin-top: 24px;
  box-shadow: 0 14px 32px rgba(28, 28, 30, 0.1);
}

.solution-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--neutral-200);
}

.solution-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--neutral-100);
}

.solution-icon .svg-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--neutral-600);
  fill: none;
}

.solution-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--neutral-800);
}

.solution-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.solution-item {
  background: #FFFFFF;
  padding: 18px;
  border-radius: 14px;
  text-align: center;
  box-shadow: 0 12px 24px rgba(28, 28, 30, 0.08);
  border: 1px solid var(--neutral-200);
  transition: all 0.3s ease;
  cursor: pointer;
}

.solution-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(28, 28, 30, 0.12);
  border-color: var(--primary-blue);
}

.solution-label {
  display: block;
  font-size: 13px;
  color: var(--neutral-500);
  font-weight: 600;
  margin-bottom: 8px;
}

.solution-value {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-blue);
}

.solution-value.highlight {
  color: var(--primary-blue);
  font-size: 24px;
}

.solution-result {
  grid-column: 1 / -1;
  background: #FFFFFF;
  padding: 20px;
  border-radius: 14px;
  text-align: center;
  font-size: 18px;
  color: var(--neutral-800);
  margin-top: 8px;
  border: 1px solid var(--neutral-200);
}

.result-badge {
  display: inline-block;
  margin-left: 12px;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 700;
}

.result-badge.success {
  background: var(--neutral-100);
  color: var(--success-600);
}

.result-badge.partial {
  background: var(--neutral-100);
  color: var(--warning-500);
}

.chart-section {
  border-left: none;
}

.chart-section.gap-alert {
  border-left: none;
}

.chart-section.gap-sufficient {
  border-left: none;
}

/* 移动端响应式 */
@media (max-width: 768px) {
  .key-metrics-hero {
    grid-template-columns: 1fr;
  }

  .hero-metric {
    padding: 20px;
  }

  .hero-value {
    font-size: 28px;
  }

  .roi-bar-chart {
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 20px;
  }

  .bar-container {
    width: 100%;
    max-width: 100%;
  }

  .bar-wrapper {
    height: 150px;
  }

  .improvement-arrow {
    position: static;
    margin-top: 16px;
  }

  .gap-bar {
    height: 60px;
  }

  .segment-label {
    font-size: 12px;
  }

  .solution-details {
    grid-template-columns: 1fr;
  }

  .roi-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .roi-arrow {
    display: none;
  }

  .roi-improvement {
    grid-column: 1;
  }

  .gap-grid,
  .commercial-grid {
    grid-template-columns: 1fr;
  }

  .optimization-success {
    padding: 16px;
  }

  .optimization-header h3 {
    font-size: 20px;
  }

  .btn-ai-optimize {
    width: 100%;
    justify-content: center;
    padding: 14px 24px;
  }
  
  #aiOptimizationSection {
    padding: 16px;
    margin-top: 24px;
  }
  
  .optimization-section {
    padding: 16px;
  }
}