/* 事業紹介ページ専用スタイル */

/* パンくずナビ */
.breadcrumb {
    background: #f8f9fa;
    padding: 15px 0;
    margin-top: 80px;
    border-bottom: 1px solid #e9ecef;
}

.breadcrumb a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: #d4af37;
}

.breadcrumb .separator {
    margin: 0 10px;
    color: #999;
}

.breadcrumb .current {
    color: #333;
    font-weight: 500;
}

/* ページヘッダー */
.page-header {
    background: linear-gradient(135deg, #1a1a1a 0%, #333 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: white;
}

.page-header p {
    font-size: 1.1rem;
    color: #ccc;
    max-width: 600px;
    margin: 0 auto;
}

/* 事業概要セクション */
.business-overview {
    padding: 80px 0;
    background: white;
}

.business-overview h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.overview-text {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
    font-size: 1.1rem;
    color: #666;
    line-height: 1.8;
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.business-card {
    background: white;
    border-radius: 15px;
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
    position: relative;
    overflow: hidden;
}

.business-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #d4af37, #b8941f);
}

.business-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.business-card.main-business {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, #fffdf5 0%, #fff 100%);
    border: 2px solid #d4af37;
}

.business-card.main-business::before {
    height: 6px;
}

.business-number {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    background: #d4af37;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.business-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #d4af37, #b8941f);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.business-icon i {
    font-size: 2rem;
    color: white;
}

.business-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.business-card p {
    color: #666;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.business-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.business-features li {
    color: #666;
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
    border-bottom: 1px solid #f0f0f0;
}

.business-features li:last-child {
    border-bottom: none;
}

.business-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #d4af37;
    font-weight: bold;
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    .page-header {
        padding: 40px 0;
    }

    .page-header h1 {
        font-size: 2.2rem;
    }

    .business-overview {
        padding: 60px 0;
    }

    .business-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .business-card.main-business {
        grid-column: 1;
    }

    .business-card {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .breadcrumb {
        padding: 10px 0;
    }

    .page-header h1 {
        font-size: 1.8rem;
    }

    .page-header p {
        font-size: 1rem;
    }

    .overview-text {
        font-size: 1rem;
        margin-bottom: 3rem;
    }

    .business-card {
        padding: 1.5rem;
    }

    .business-card h3 {
        font-size: 1.2rem;
    }

    .business-icon {
        width: 60px;
        height: 60px;
    }

    .business-icon i {
        font-size: 1.5rem;
    }

    .business-number {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
}