* {
    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: #fafafa;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

header {
    background-color: #00649D;
    color: #fff;
    padding: 0.5rem 0;
    text-align: center;
    border-bottom: none;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 1.5rem;
}

.header-content a {
    text-decoration: none;
    color: inherit;
    display: flex;
    align-items: center;
}

.company-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
}

.company-info {
    text-align: left;
    line-height: 1.2;
}

.company-name {
    font-size: 2rem;
    margin-bottom: 0.3rem;
    font-weight: 200;
    color: #fff;
    letter-spacing: 1.5px;
    margin: 0;
}

.company-name-en {
    font-size: 1rem;
    font-weight: 300;
    opacity: 0.9;
    color: #ecf0f1;
    letter-spacing: 1px;
    margin: 0;
}

main {
    padding: 3rem 0;
    flex: 1;
}

section {
    background-color: white;
    margin-bottom: 3rem;
    padding: 3.5rem;
    border-radius: 20px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    border: 1px solid #f0f0f0;
}

h2 {
    color: #555;
    margin-bottom: 2rem;
    font-size: 2rem;
    border-bottom: 3px solid #e8e8e8;
    padding-bottom: 0.8rem;
    font-weight: 300;
    letter-spacing: 1px;
}

.section-content {
    font-size: 1.1rem;
    color: #555;
}

.placeholder {
    background-color: #f8f8f8;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    color: #777;
    font-style: italic;
    border: 1px dashed #ddd;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.contact-item {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid #e9ecef;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.contact-label {
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    position: relative;
}

.contact-value {
    font-size: 1.2rem;
    color: #495057;
    line-height: 1.7;
    font-weight: 400;
}

.contact-value a {
    color: #666;
    text-decoration: none;
}

.contact-value a:hover {
    color: #444;
    text-decoration: underline;
}

.email-disabled {
    text-decoration: line-through;
    color: #999;
    margin-bottom: 0.8rem;
}

.email-notice {
    color: #e74c3c;
    font-weight: 500;
    font-size: 0.9rem;
}

.section-content p {
    margin-bottom: 1.5rem;
}

.section-content p:last-child {
    margin-bottom: 0;
}

footer {
    background-color: #f5f5f5;
    color: #777;
    text-align: center;
    padding: 1.5rem 0;
    margin-top: auto;
    border-top: 1px solid #eee;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
}

footer p {
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

@media (max-width: 768px) {
    .header-content {
        gap: 1rem;
    }
    
    .company-info {
        text-align: left;
    }
    
    .company-logo {
        width: 60px;
        height: 60px;
    }
    
    .company-name {
        font-size: 1.8rem;
        letter-spacing: 1px;
    }
    
    section {
        padding: 2.5rem 1.5rem;
        margin-bottom: 2rem;
        border-radius: 15px;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    header {
        padding: 1rem 0;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    main {
        padding: 2rem 0;
    }
}