.markdown-content {
  font-family: 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
  color: #333;
  background-color: #fcfaf6;
  line-height: 1.7;
  padding: 2rem;
  max-width: 1000px;
  margin: 0 auto;
  font-size: 16px;
  letter-spacing: 0.02em;
}

.markdown-content h1 {
  color: #5a4b43;
  font-weight: 600;
  font-size: 1.8em;
  border-bottom: 2px solid #d7ccc8;
  padding-bottom: 0.5rem;
  margin: 2rem 0 1.5rem;
  letter-spacing: 0.04em;
}

.markdown-content h2 {
  color: #6d665e;
  font-weight: 500;
  font-size: 1.5em;
  border-left: 5px solid #c0afa0;
  padding-left: 0.8rem;
  margin: 2rem 0 1.2rem;
  letter-spacing: 0.03em;
}

.markdown-content h3 {
  color: #827b74;
  font-weight: 500;
  font-size: 1.3em;
  padding-bottom: 0.3rem;
  border-bottom: 1px dashed #d7ccc8;
  margin: 1.5rem 0 1rem;
  letter-spacing: 0.03em;
}

.markdown-content h4 {
  color: #9e948a;
  font-weight: 400;
  font-size: 1.1em;
  padding-left: 0.6rem;
  border-left: 4px solid #ded5cd;
  margin: 1.2rem 0 0.8rem;
  letter-spacing: 0.02em;
}

.markdown-content p {
  margin: 1rem 0 1.8rem;
  text-align: justify;
  color: #4f4842;
  letter-spacing: 0.02em;
}

.markdown-content a {
  color: #ad7a64;
  text-decoration: none;
  transition: color 0.2s ease;
}

.markdown-content a:hover {
  color: #784d3c;
}

.markdown-content blockquote {
  border-left: 4px solid #c0afa0;
  background-color: #f5f0eb;
  color: #6b645e;
  padding: 1.2em;
  margin: 1.8rem 0;
  border-radius: 0;
}

.markdown-content hr {
  border: none;
  border-top: 1px solid #e0d8d2;
  margin: 2.5rem auto;
}

.markdown-content code {
  background-color: #f2eeea;
  color: #584d46;
  border-radius: 0.2em;
  padding: 0.3em 0.6em;
  border: none;
}

.markdown-content pre {
  background-color: #f2eeea;
  border-radius: 0;
  padding: 1.2rem;
  margin: 1.5rem 0;
}

.markdown-content pre code {
  padding: 0;
  background-color: transparent;
  color: #584d46;
}

.markdown-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
}

.markdown-content th {
  background-color: #e7e1da;
  padding: 0.8em 1.2em;
  text-align: center;
  font-weight: 600;
  color: #5a4b43;
  letter-spacing: 0.03em;
}

.markdown-content td {
  padding: 0.8em 1.2em;
  border-bottom: 1px solid #ded5cd;
  color: #4f4842;
  letter-spacing: 0.02em;
}

.markdown-content tbody tr:hover {
  background-color: #f7f3ef;
}

.markdown-content input[type="checkbox"] {
  -webkit-appearance: none;
  appearance: none;
  border: 1px solid #bfb5ac;
  width: 1rem;
  height: 1rem;
  margin-right: 0.5rem;
  vertical-align: middle;
  border-radius: 2px;
  cursor: pointer;
}

.markdown-content input[type="checkbox"]:checked {
  background-color: #ad7a64;
  border-color: #ad7a64;
  position: relative;
}

.markdown-content input[type="checkbox"]:checked::before {
  content: '✓';
  color: #fff;
  font-size: 0.8em;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.markdown-content img {
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  max-width: 100%;
  height: auto;
  margin: 1.5rem 0;
}