body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto',
    sans-serif;
  line-height: 1.6;
  color: #333;
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
  background-color: #f8fafc;
}

.container {
  background: white;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid #e2e8f0;
}

h1 {
  color: #1a202c;
  border-bottom: 3px solid #3182ce;
  padding-bottom: 15px;
  margin-bottom: 30px;
  font-size: 2.5rem;
  font-weight: 700;
}

h2 {
  color: #2d3748;
  margin-top: 40px;
  margin-bottom: 20px;
  font-size: 1.8rem;
  font-weight: 600;
  border-bottom: 2px solid #e2e8f0;
  padding-bottom: 8px;
}

h3 {
  color: #4a5568;
  margin-top: 30px;
  margin-bottom: 15px;
  font-size: 1.4rem;
  font-weight: 600;
}

h4 {
  color: #718096;
  margin-top: 25px;
  margin-bottom: 12px;
  font-size: 1.2rem;
  font-weight: 600;
}

a {
  color: #3182ce;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all 0.2s ease;
}

a:hover {
  color: #2c5282;
  border-bottom-color: #3182ce;
}

ul, ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

li {
  margin-bottom: 8px;
  line-height: 1.6;
}

p {
  margin-bottom: 16px;
  line-height: 1.7;
}

/* 表格样式 */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

th {
  background: #4a5568;
  color: white;
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

td {
  padding: 12px 16px;
  border-bottom: 1px solid #e2e8f0;
  vertical-align: top;
}

tr:hover {
  background-color: #f7fafc;
}

tr:last-child td {
  border-bottom: none;
}

code {
  background: #f1f5f9;
  color: #e53e3e;
  padding: 3px 6px;
  border-radius: 4px;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.9em;
  font-weight: 500;
}

pre {
  background: #1a202c;
  color: #e2e8f0;
  padding: 20px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 20px 0;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.9rem;
  line-height: 1.5;
  border: 1px solid #2d3748;
}

pre code {
  background: none;
  color: inherit;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
}

.hljs {
  background: #1a202c !important;
  color: #e2e8f0 !important;
}

.highlight-box {
  background: linear-gradient(135deg, #e6fffa 0%, #f0fff4 100%);
  border-left: 4px solid #38a169;
  padding: 24px;
  margin: 30px 0;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(56, 161, 105, 0.1);
}

.highlight-box h3 {
  color: #2f855a;
  margin-top: 0;
  margin-bottom: 12px;
}

.highlight-box p {
  color: #2d3748;
  margin-bottom: 8px;
}

.highlight-box p:last-child {
  margin-bottom: 0;
}

img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

blockquote {
  border-left: 4px solid #cbd5e0;
  padding-left: 20px;
  margin: 20px 0;
  font-style: italic;
  color: #4a5568;
  background: #f7fafc;
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
}

@media (max-width: 768px) {
  body {
    padding: 10px;
  }
  
  .container {
    padding: 20px;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  table {
    font-size: 0.9rem;
  }
  
  th, td {
    padding: 8px 12px;
  }
  
  pre {
    padding: 15px;
    font-size: 0.8rem;
  }
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: #cbd5e0;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #a0aec0;
}