/* ブログ共通 */
.blog-header {
    background: linear-gradient(135deg, #0056b3 0%, #00a0e9 100%);
    color: white;
    padding: 120px 5% 60px;
    margin-top: 70px;
}

.blog-header h1 {
    font-size: 36px;
    font-weight: 700;
    max-width: 1200px;
    margin: 0 auto 10px;
}

.blog-header p {
    font-size: 16px;
    max-width: 1200px;
    margin: 0 auto;
    opacity: 0.9;
}

/* ブログ一覧 */
.blog-list {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 5%;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
}

.blog-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-5px);
}

.blog-card a {
    color: inherit;
}

.blog-card-body {
    padding: 24px;
}

.blog-card-date {
    font-size: 13px;
    color: #888;
    margin-bottom: 8px;
}

.blog-card-body h2 {
    font-size: 20px;
    color: #0056b3;
    margin-bottom: 12px;
    line-height: 1.5;
}

.blog-card-body p {
    font-size: 14px;
    color: #555;
    line-height: 1.7;
}

.blog-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: #0056b3;
    background: #e8f0fe;
    padding: 2px 10px;
    border-radius: 12px;
    margin-right: 6px;
    margin-top: 12px;
}

/* 記事本文 */
.blog-article {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 5%;
}

.blog-article-meta {
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.blog-article-meta time {
    font-size: 14px;
    color: #888;
}

.blog-article h2 {
    font-size: 26px;
    color: #0056b3;
    margin: 40px 0 16px;
    line-height: 1.5;
}

.blog-article h3 {
    font-size: 20px;
    color: #333;
    margin: 32px 0 12px;
    line-height: 1.5;
}

.blog-article p {
    font-size: 16px;
    line-height: 1.9;
    color: #333;
    margin-bottom: 20px;
}

.blog-article ul, .blog-article ol {
    margin: 0 0 20px 24px;
    line-height: 1.9;
}

.blog-article li {
    margin-bottom: 8px;
}

.blog-article blockquote {
    border-left: 4px solid #0056b3;
    padding: 16px 20px;
    margin: 20px 0;
    background: #f9f9f9;
    color: #555;
}

.blog-article table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 15px;
}

.blog-article th, .blog-article td {
    border: 1px solid #ddd;
    padding: 12px 16px;
    text-align: left;
}

.blog-article th {
    background: #f0f4f8;
    font-weight: 600;
    color: #0056b3;
}

.blog-cta {
    background: #f0f4f8;
    border-radius: 10px;
    padding: 40px;
    text-align: center;
    margin-top: 60px;
}

.blog-cta h3 {
    color: #0056b3;
    margin-bottom: 12px;
}

.blog-cta p {
    margin-bottom: 20px;
    color: #555;
}

.blog-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.blog-nav a {
    color: #0056b3;
    font-weight: 500;
}

/* Breadcrumb */
.breadcrumb {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 5% 0;
    font-size: 13px;
    color: #888;
}

.breadcrumb a {
    color: #0056b3;
}

.breadcrumb span {
    margin: 0 6px;
}

@media (max-width: 768px) {
    .blog-header {
        padding: 100px 5% 40px;
    }
    .blog-header h1 {
        font-size: 26px;
    }
    .blog-grid {
        grid-template-columns: 1fr;
    }
    .blog-article h2 {
        font-size: 22px;
    }
    .blog-cta {
        padding: 24px;
    }
}