/* リセットとベーススタイル */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ヘッダー */
.header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo img {
    height: 50px;
    width: auto;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav a:hover {
    color: #0066cc;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: #333;
    transition: all 0.3s;
}

.mobile-menu {
    display: none;
    background-color: white;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    z-index: 999;
}

.mobile-menu.active {
    display: flex;
    flex-direction: column;
}

.mobile-menu a {
    padding: 15px 20px;
    text-decoration: none;
    color: #333;
    border-bottom: 1px solid #eee;
    transition: background-color 0.3s;
}

.mobile-menu a:hover {
    background-color: #f0f0f0;
}

.cta-button {
    background-color: #0066cc;
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s;
}

.cta-button:hover {
    background-color: #0052a3;
}

/* ヒーローセクション */
.hero {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    padding: 80px 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hero-text h1 {
    font-size: 48px;
    color: #0066cc;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-description {
    font-size: 18px;
    color: #555;
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 15px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background-color: #0066cc;
    color: white;
}

.btn-primary:hover {
    background-color: #0052a3;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: white;
    color: #0066cc;
    border: 2px solid #0066cc;
}

.btn-secondary:hover {
    background-color: #0066cc;
    color: white;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* 強みセクション */
.strengths {
    padding: 80px 0;
    background-color: white;
}

.section-title {
    text-align: center;
    font-size: 36px;
    color: #0066cc;
    margin-bottom: 15px;
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: #666;
    margin-bottom: 50px;
}

.mobile-break {
    display: none;
}

.strengths-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.strength-card {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.strength-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 102, 204, 0.2);
}

.strength-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.strength-card h3 {
    font-size: 20px;
    color: #0066cc;
    margin-bottom: 15px;
}

.strength-card p {
    color: #666;
    line-height: 1.8;
}

/* サービスセクション */
.services {
    padding: 80px 0;
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.service-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

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

.service-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
}

.service-card h3 {
    font-size: 24px;
    color: #0066cc;
    padding: 20px 20px 10px;
}

.service-card p {
    padding: 0 20px 20px;
    color: #666;
    line-height: 1.8;
}

/* 会社概要セクション */
.company-info {
    padding: 80px 0;
    background-color: white;
}

.info-table {
    max-width: 800px;
    margin: 0 auto;
    background-color: #f8f9fa;
    border-radius: 10px;
    overflow: hidden;
}

.info-row {
    display: grid;
    grid-template-columns: 200px 1fr;
    border-bottom: 1px solid #e0e0e0;
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    background-color: #e3f2fd;
    padding: 20px;
    font-weight: 600;
    color: #0066cc;
}

.info-value {
    padding: 20px;
    color: #333;
}

.info-value a {
    color: #0066cc;
    text-decoration: none;
}

.info-value a:hover {
    text-decoration: underline;
}

/* フッター */
.footer {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    padding: 30px 0;
    text-align: center;
}

.footer p {
    color: #666;
    font-size: 14px;
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    .desktop-nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .cta-button {
        display: none;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .hero-text h1 {
        font-size: 32px;
    }
    
    .hero-description {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .section-subtitle {
        font-size: 16px;
    }
    
    .mobile-break {
        display: block;
    }
    
    .strengths-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .info-row {
        grid-template-columns: 1fr;
    }
    
    .info-label {
        border-bottom: 1px solid #d0d0d0;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 40px 0;
    }
    
    .strengths,
    .services,
    .company-info {
        padding: 40px 0;
    }
    
    .hero-text h1 {
        font-size: 24px;
    }
    
    .hero-description {
        font-size: 14px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .strength-card,
    .service-card {
        padding: 20px;
    }
}