/* ===== ブログ(style.css の上に重ねる) ===== */
.blog-page {
    background-color: #fff;
}

.blog-main {
    padding-top: 80px; /* 固定ヘッダー分 */
}

.blog-nav {
    display: flex;
    align-items: center;
    gap: 24px;
    font-weight: 500;
}

.blog-nav a:not(.btn):hover {
    color: #1da1f2;
}

.blog-lang-switch {
    font-size: 0.9rem;
    color: #555;
    border: 1px solid #ccd6dd;
    border-radius: 50px;
    padding: 4px 12px;
}

/* 一覧 */
.blog-hero {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ef 100%);
    padding: 60px 0 50px;
    text-align: center;
    margin-bottom: 40px;
}

.blog-hero h1 {
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 12px;
}

.blog-hero p {
    color: #555;
}

.blog-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
}

.blog-card a {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 24px;
    border: 1px solid #e6ecf0;
    border-radius: 12px;
    background: #fff;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.blog-card a:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.blog-card-thumb {
    width: calc(100% + 48px);
    max-width: none;
    margin: -24px -24px 16px;
    border-radius: 12px 12px 0 0;
    aspect-ratio: 1200 / 630;
    object-fit: cover;
}

.blog-card a {
    overflow: hidden;
}

.blog-card time {
    font-size: 0.85rem;
    color: #8899a6;
}

.blog-card h2,
.blog-card h3 {
    font-size: 1.15rem;
    color: #2c3e50;
    margin: 8px 0 10px;
    line-height: 1.5;
}

.blog-card p {
    color: #555;
    font-size: 0.95rem;
    flex: 1;
}

.blog-card-more {
    margin-top: 16px;
    color: #1da1f2;
    font-weight: 500;
}

/* 記事 */
.blog-article {
    max-width: 760px;
    padding-top: 40px;
    padding-bottom: 40px;
}

.blog-back {
    color: #1da1f2;
    font-size: 0.95rem;
}

.blog-article-header {
    margin: 20px 0 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid #e6ecf0;
}

.blog-article-header h1 {
    font-size: 2rem;
    line-height: 1.45;
    color: #2c3e50;
}

.blog-meta {
    margin-top: 12px;
    color: #8899a6;
    font-size: 0.9rem;
}

.blog-article-thumb {
    width: 100%;
    border-radius: 12px;
    margin-bottom: 32px;
}

.blog-body {
    font-size: 1.05rem;
    line-height: 1.9;
}

.blog-body h2 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin: 48px 0 16px;
    padding-left: 12px;
    border-left: 4px solid #1da1f2;
    line-height: 1.5;
}

.blog-body h3 {
    font-size: 1.2rem;
    color: #2c3e50;
    margin: 32px 0 12px;
}

.blog-body p {
    margin-bottom: 1.2em;
}

.blog-body ul,
.blog-body ol {
    margin: 0 0 1.2em 1.5em;
}

.blog-body ul {
    list-style: disc;
}

.blog-body ol {
    list-style: decimal;
}

.blog-body li {
    margin-bottom: 0.4em;
}

.blog-body a {
    color: #1da1f2;
    text-decoration: underline;
}

.blog-body strong {
    background: linear-gradient(transparent 65%, #d6efff 65%);
}

.blog-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 1.5em;
    font-size: 0.95rem;
    display: block;
    overflow-x: auto;
}

.blog-body th,
.blog-body td {
    border: 1px solid #e6ecf0;
    padding: 10px 12px;
    text-align: left;
}

.blog-body th {
    background: #f5f8fa;
}

.blog-body blockquote {
    margin: 0 0 1.2em;
    padding: 12px 16px;
    background: #f5f8fa;
    border-left: 4px solid #ccd6dd;
    color: #555;
}

.blog-body code {
    background: #f5f8fa;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}

.blog-related {
    max-width: 1000px;
}

.blog-related h2 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 20px;
}

/* CTA */
.blog-cta {
    background: #1da1f2;
    color: #fff;
    text-align: center;
    padding: 56px 0;
}

.blog-cta h2 {
    font-size: 1.6rem;
    margin-bottom: 12px;
}

.blog-cta p {
    margin-bottom: 24px;
}

.blog-cta .btn-primary {
    background: #fff;
    color: #1da1f2;
    border-color: #fff;
}

/* フッター */
.blog-footer {
    background-color: #2c3e50;
    color: #eee;
    padding: 40px 0 20px;
}

.blog-footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.blog-footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1da1f2;
}

.blog-footer-links {
    display: flex;
    gap: 20px;
}

.blog-footer-links a:hover {
    color: #1da1f2;
}

.blog-copyright {
    font-size: 0.85rem;
    color: #aab8c2;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 16px;
}

@media (max-width: 768px) {
    .blog-nav {
        gap: 12px;
        font-size: 0.9rem;
    }

    .blog-nav a:nth-child(1) {
        display: none; /* 狭い画面ではトップリンクをロゴに任せる */
    }

    .blog-hero h1 {
        font-size: 1.7rem;
    }

    .blog-article-header h1 {
        font-size: 1.5rem;
    }

    .blog-body {
        font-size: 1rem;
    }

    .blog-list {
        grid-template-columns: 1fr;
    }
}