.blog-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
}
.blog-content h1 {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 1rem;
    line-height: 1.3;
    color: #1a202c;
}
.blog-content h2 {
    font-size: 1.75rem;
    font-weight: bold;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: #1a202c;
}
.blog-content h3 {
    font-size: 1.5rem;
    font-weight: bold;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: #2d3748;
}
.blog-content p {
    margin-bottom: 1.25rem;
    line-height: 1.8;
    color: #4a5568;
}
.blog-content ul, .blog-content ol {
    margin-bottom: 1.25rem;
    padding-left: 1.5rem;
    line-height: 1.8;
}
.blog-content li {
    margin-bottom: 0.5rem;
    color: #4a5568;
}
.blog-content strong {
    color: #2d3748;
    font-weight: 600;
}
.blog-content a {
    color: #3182ce;
    text-decoration: underline;
}
.blog-content a:hover {
    color: #2c5aa0;
}
.cta-button {
    display: inline-block;
    background-color: #3182ce;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: bold;
    text-decoration: none;
    margin: 1rem 0;
}
.cta-button:hover {
    background-color: #2c5aa0;
}
.feature-box {
    background-color: #f7fafc;
    border-left: 4px solid #3182ce;
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
}
.step-box {
    background-color: #edf2f7;
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin: 1rem 0;
}

/* ダークモード対応 */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #1a202c;
        color: #e2e8f0;
    }
    .blog-content h1,
    .blog-content h2 {
        color: #f7fafc;
    }
    .blog-content h3 {
        color: #e2e8f0;
    }
    .blog-content p,
    .blog-content li {
        color: #cbd5e0;
    }
    .blog-content strong {
        color: #f7fafc;
    }
    .blog-content a {
        color: #63b3ed;
    }
    .blog-content a:hover {
        color: #90cdf4;
    }
    .feature-box {
        background-color: #2d3748;
        border-left-color: #4299e1;
    }
    .step-box {
        background-color: #2d3748;
    }
}