/* 基本設定 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ヘッダー */
.header {
    background: rgba(255, 255, 255, 0.95);
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    color: #0056b3;
    font-weight: bold;
}

.nav ul {
    display: flex;
    list-style: none;
}

.nav ul li {
    margin-left: 30px;
}

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

.nav ul li a:hover {
    color: #0056b3;
}

/* ヒーローセクション */
.hero {
    height: 80vh;
    background: linear-gradient(rgba(0, 86, 179, 0.7), rgba(0, 86, 179, 0.7)), 
                url('https://images.unsplash.com/photo-1497366216548-37526070297c?auto=format&fit=crop&w=1200&q=80') 
                no-repeat center center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    padding-top: 80px;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 20px;
}

.hero-description {
    font-size: 1.25rem;
}

/* 共通セクションスタイル */
section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 40px;
    color: #0056b3;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    width: 50px;
    height: 3px;
    background: #0056b3;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.section-subtitle {
    text-align: center;
    margin-bottom: 60px;
    color: #666;
}

/* 製品紹介 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    background: #f8f9fa;
    padding: 40px 20px;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s;
}

.product-card:hover {
    transform: translateY(-10px);
}

.product-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.product-card h3 {
    margin-bottom: 15px;
    color: #0056b3;
}

/* 会社概要 */
.company {
    background-color: #f4f7f9;
}

.company-info-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.company-text {
    margin-bottom: 40px;
    text-align: center;
}

.company-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
}

.company-table th,
.company-table td {
    padding: 20px;
    border-bottom: 1px solid #eee;
}

.company-table th {
    background: #eef3f8;
    width: 30%;
    text-align: left;
    color: #0056b3;
}

/* フッター */
.footer {
    background: #002d5e;
    color: #fff;
    padding: 60px 0 20px;
    text-align: center;
}

.footer-logo {
    font-size: 20px;
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.footer-links li {
    margin: 0 15px;
}

.footer-links li a {
    color: #ccc;
    text-decoration: none;
    font-size: 0.9rem;
}

.footer-links li a:hover {
    color: #fff;
}

.copyright {
    font-size: 0.8rem;
    color: #999;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
    }
    
    .nav ul {
        margin-top: 15px;
    }
    
    .nav ul li {
        margin: 0 10px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .company-table th {
        width: 40%;
    }
}