/* 帮助文档共享样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.5;
  color: #2d3748;
  background-color: #f3f6fb;
}

.help-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px;
}

.help-header {
  background: white;
  border-radius: 10px;
  padding: 20px 22px;
  margin-bottom: 14px;
  box-shadow: 0 1px 8px rgba(15, 23, 42, 0.06);
}

.help-header h1 {
  font-size: 28px;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 6px;
}

.help-header p {
  font-size: 15px;
  color: #64748b;
}

.help-content {
  background: white;
  border-radius: 10px;
  padding: 20px 22px;
  box-shadow: 0 1px 8px rgba(15, 23, 42, 0.06);
}

.help-section {
  margin-bottom: 26px;
}

.help-section:last-child {
  margin-bottom: 0;
}

.help-section h2 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  color: #1f2937;
  border-bottom: 1px solid #e2e8f0;
  padding-bottom: 6px;
}

.help-section h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 10px;
  color: #2d3748;
}

.help-section p {
  font-size: 14px;
  line-height: 1.55;
  color: #4a5568;
  margin-bottom: 10px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 14px 0;
}

.feature-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 14px;
  text-align: left;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  border-color: #3b82f6;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.12);
}

.feature-icon {
  font-size: 24px;
  color: #4299e1;
  margin-bottom: 8px;
}

.feature-card h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
  color: #2d3748;
}

.feature-card p {
  font-size: 13px;
  color: #64748b;
  margin-bottom: 0;
}

.feature-card ul {
  margin-top: 8px;
  padding-left: 16px;
}

.feature-card li {
  font-size: 12px;
  line-height: 1.45;
  color: #64748b;
  margin: 2px 0;
}

.steps-container {
  margin: 14px 0;
}

.step-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 10px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.step-card:hover {
  border-color: #3b82f6;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.12);
}

.step-header {
  display: flex;
  align-items: center;
  margin-bottom: 8px;
}

.step-number {
  width: 24px;
  height: 24px;
  background: #4299e1;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  margin-right: 8px;
  font-size: 12px;
}

.step-header h4 {
  font-size: 15px;
  font-weight: 600;
  color: #2d3748;
  margin: 0;
}

.screenshot {
  text-align: center;
  margin: 10px 0 4px;
}

.screenshot img {
  max-width: 100%;
  height: auto;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  box-shadow: 0 1px 6px rgba(15, 23, 42, 0.08);
}

.screenshot-caption {
  font-size: 12px;
  color: #718096;
  margin-top: 4px;
  font-style: italic;
}

.format-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 14px 0;
}

.format-card {
  background: #f8fafc;
  border: 2px solid #e2e8f0;
  border-radius: 8px;
  padding: 14px;
  text-align: center;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.format-card.recommended {
  border-color: #48bb78;
  position: relative;
}

.format-card.recommended::before {
  content: '推荐';
  position: absolute;
  top: -12px;
  right: 16px;
  background: #48bb78;
  color: white;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.format-icon {
  font-size: 18px;
  font-weight: 700;
  color: #4299e1;
  background: #ebf8ff;
  width: 52px;
  height: 52px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 10px;
}

.format-card h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
  color: #2d3748;
}

.format-card > p {
  font-size: 13px;
  color: #718096;
  margin-bottom: 8px;
}

.format-features {
  text-align: left;
}

.format-features ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.format-features li {
  font-size: 14px;
  color: #718096;
  padding: 2px 0;
  position: relative;
  padding-left: 16px;
}

.format-features li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: #4299e1;
}

.form-fields {
  background: #f8fafc;
  border-radius: 8px;
  padding: 12px;
  margin: 10px 0;
}

.field-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 8px;
}

.field-item:last-child {
  margin-bottom: 0;
}

.field-tag {
  margin-right: 12px;
  flex-shrink: 0;
  margin-top: 2px;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}

.field-tag.required {
  background: #fed7d7;
  color: #c53030;
}

.field-tag.optional {
  background: #e2e8f0;
  color: #4a5568;
}

.field-info {
  flex: 1;
}

.field-info strong {
  color: #2d3748;
  font-weight: 600;
}

.tips {
  margin: 10px 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
}

.tip-alert {
  background: #ebf8ff;
  border: 1px solid #bee3f8;
  border-radius: 8px;
  padding: 12px;
}

.tip-alert h4 {
  font-size: 14px;
  font-weight: 600;
  color: #2b6cb0;
  margin-bottom: 6px;
}

.tip-alert ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tip-alert li {
  font-size: 12px;
  color: #2c5282;
  padding: 2px 0;
  position: relative;
  padding-left: 16px;
}

.tip-alert li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: #2b6cb0;
}

.best-practices {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 14px 0;
}

.practice-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 14px;
}

.practice-card h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #2d3748;
  display: flex;
  align-items: center;
  gap: 8px;
}

.practice-card p {
  font-size: 14px;
  color: #64748b;
  margin: 0;
  line-height: 1.5;
}

.practice-icon {
  color: #ed8936;
  font-size: 16px;
}

.faq {
  margin: 10px 0;
}

.faq-item {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  margin-bottom: 8px;
  overflow: hidden;
}

.faq-question {
  background: #edf2f7;
  padding: 12px 16px;
  font-weight: 600;
  font-size: 14px;
  color: #2d3748;
  cursor: pointer;
  border-bottom: 1px solid #e2e8f0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.2s ease;
}

.faq-question::after {
  content: '▼';
  font-size: 12px;
  color: #718096;
  transition: transform 0.2s ease;
}

.faq-question:hover {
  background: #e2e8f0;
}

.faq-item.active .faq-question {
  background: #e2e8f0;
}

.faq-item.active .faq-question::after {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 16px;
  font-size: 14px;
  color: #4a5568;
  line-height: 1.6;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
  padding: 12px 16px;
  max-height: 500px;
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.related-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: #ebf8ff;
  color: #2b6cb0;
  text-decoration: none;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.related-link:hover {
  background: #bee3f8;
  color: #2c5282;
}

.related-link::after {
  content: '→';
}

.example-item {
  margin-top: 8px;
  border: 1px dashed #cbd5e1;
  border-radius: 6px;
  padding: 8px;
}

.example-query {
  font-size: 12px;
  font-weight: 600;
  color: #0f172a;
  margin-bottom: 4px;
}

.example-result {
  font-size: 12px;
  color: #64748b;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .help-container {
    padding: 10px;
  }
  
  .help-header,
  .help-content {
    padding: 14px;
  }
  
  .help-header h1 {
    font-size: 22px;
  }
  
  .feature-grid,
  .format-grid,
  .best-practices {
    grid-template-columns: 1fr;
  }
  
  .step-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .step-number {
    margin-bottom: 8px;
    margin-right: 0;
  }
}