/* ===========================
   記事ページ専用スタイル
   =========================== */

.article-content {
    padding: 100px 0 80px;
    background: #F8F9FA;
}

.article-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 2px solid #ECF0F1;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
    font-size: 14px;
}

.article-date {
    color: #666;
    display: flex;
    align-items: center;
    gap: 5px;
}

.article-category {
    background: #2C3E50;
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

.article-title {
    font-size: 36px;
    font-weight: 700;
    color: #2C3E50;
    line-height: 1.4;
    margin-bottom: 0;
}

.article-body {
    background: white;
    padding: 50px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    max-width: 800px;
    margin: 0 auto;
}

.article-lead {
    font-size: 18px;
    line-height: 1.8;
    color: #2C3E50;
    font-weight: 500;
    margin-bottom: 40px;
    padding: 20px;
    background: #F8F9FA;
    border-left: 4px solid #2C3E50;
}

.article-image {
    margin: 40px 0;
    text-align: center;
}

.article-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.article-body h2 {
    font-size: 28px;
    font-weight: 700;
    color: #2C3E50;
    margin: 50px 0 20px;
    padding-bottom: 15px;
    border-bottom: 3px solid #2C3E50;
}

.article-body h3 {
    font-size: 22px;
    font-weight: 600;
    color: #2C3E50;
    margin: 40px 0 15px;
    padding-left: 15px;
    border-left: 4px solid #2C3E50;
}

.article-body h4 {
    font-size: 18px;
    font-weight: 600;
    color: #2C3E50;
    margin: 30px 0 10px;
}

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

.article-body ul,
.article-body ol {
    margin: 20px 0 20px 30px;
    line-height: 1.9;
}

.article-body li {
    margin-bottom: 10px;
    color: #333;
}

.article-body strong {
    color: #2C3E50;
    font-weight: 600;
}

/* 情報ボックス */
.info-box {
    background: #E7F3FF;
    border-left: 4px solid #2196F3;
    padding: 20px;
    margin: 30px 0;
    border-radius: 8px;
    line-height: 1.8;
}

.warning-box {
    background: #FFF3CD;
    border-left: 4px solid #FFC107;
    padding: 20px;
    margin: 30px 0;
    border-radius: 8px;
}

.warning-box h4 {
    color: #856404;
    margin-top: 15px;
    margin-bottom: 10px;
}

.warning-box h4:first-child {
    margin-top: 0;
}

.highlight-box {
    background: #FFF5F0;
    border: 2px solid #FF6B35;
    padding: 25px;
    margin: 30px 0;
    border-radius: 8px;
}

.highlight-box ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.highlight-box li {
    margin-bottom: 12px;
    font-size: 16px;
    line-height: 1.6;
}

/* CTAボックス */
.cta-box {
    background: linear-gradient(135deg, #2C3E50 0%, #34495E 100%);
    color: white;
    padding: 40px;
    margin: 50px 0;
    border-radius: 12px;
    text-align: center;
}

.cta-box h3 {
    color: white;
    margin: 0 0 15px;
    padding: 0;
    border: none;
    font-size: 26px;
}

.cta-box p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 25px;
}

.cta-button {
    display: inline-block;
    background: white;
    color: #2C3E50;
    padding: 15px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.cta-contact {
    margin-top: 20px;
    margin-bottom: 0;
    font-size: 14px;
}

/* 記事フッター */
.article-footer {
    text-align: center;
    margin-top: 50px;
}

.back-link {
    display: inline-block;
    color: #2C3E50;
    text-decoration: none;
    font-weight: 600;
    padding: 12px 30px;
    border: 2px solid #2C3E50;
    border-radius: 30px;
    transition: all 0.3s ease;
}

.back-link:hover {
    background: #2C3E50;
    color: white;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .article-content {
        padding: 80px 0 60px;
    }
    
    .article-title {
        font-size: 26px;
    }
    
    .article-body {
        padding: 30px 20px;
    }
    
    .article-lead {
        font-size: 16px;
        padding: 15px;
    }
    
    .article-body h2 {
        font-size: 22px;
        margin: 40px 0 15px;
    }
    
    .article-body h3 {
        font-size: 18px;
        margin: 30px 0 12px;
    }
    
    .article-body p {
        font-size: 15px;
    }
    
    .cta-box {
        padding: 30px 20px;
    }
    
    .cta-box h3 {
        font-size: 22px;
    }
}