* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    background-color: #faf9f6;
    color: #1d1d1f;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 980px;
    margin: 0 auto;
    padding: 120px 20px;
}

/* ヒーローセクション */
.hero {
    background-color: #faf9f6;
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0;
    margin: 0;
}

.hero-content {
    width: 100%;
    max-width: 980px;
    padding: 0 20px;
}

.logo-image {
    max-width: 600px;
    width: 100%;
    height: auto;
    margin-bottom: 24px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.subtitle {
    font-size: 1rem;
    font-weight: 400;
    color: #1d1d1f;
    letter-spacing: 0.05em;
}

/* 事業構成 */
.services {
    margin-bottom: 160px;
}

.service-item {
    padding: 64px 0;
    border-bottom: 1px solid #e5e5e7;
}

.service-item:last-child {
    border-bottom: none;
}

.service-content {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 20px;
}

.service-number {
    font-size: 0.875rem;
    font-weight: 500;
    color: #86868b;
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 16px;
}

.service-title {
    font-size: 2rem;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.service-subtitle {
    font-size: 1rem;
    font-weight: 400;
    color: #86868b;
    margin-bottom: 24px;
    letter-spacing: 0.01em;
}

.service-description {
    font-size: 1rem;
    line-height: 1.8;
    color: #424245;
    margin-bottom: 24px;
}

.service-link {
    font-size: 1rem;
    color: #1d1d1f;
    text-decoration: none;
    display: inline-block;
    padding-bottom: 2px;
    border-bottom: 1px solid #1d1d1f;
    transition: opacity 0.2s ease;
}

.service-link:hover {
    opacity: 0.6;
}

.service-coming-soon {
    font-size: 1rem;
    color: #86868b;
    font-style: normal;
}

/* SNSリンク */
.social {
    text-align: center;
    padding: 80px 0 0 0;
    border-top: 1px solid #e5e5e7;
    display: flex;
    justify-content: center;
    gap: 40px;
}

.social-link {
    font-size: 0.875rem;
    color: #424245;
    text-decoration: none;
    letter-spacing: 0.05em;
    transition: opacity 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.social-link:hover {
    opacity: 0.6;
}

.social-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* フッター */
.footer {
    margin-top: 120px;
    padding-top: 60px;
    border-top: 1px solid #e5e5e7;
    text-align: center;
}

.footer-nav {
    margin-bottom: 24px;
}

.footer-link {
    font-size: 0.875rem;
    color: #424245;
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.footer-link:hover {
    opacity: 0.6;
}

.footer-separator {
    font-size: 0.875rem;
    color: #86868b;
    margin: 0 12px;
}

.footer-copyright {
    font-size: 0.75rem;
    color: #86868b;
    margin-top: 16px;
}

/* レスポンシブ対応 */
@media (max-width: 1024px) {
    .container {
        padding: 100px 20px;
    }

    .logo-image {
        max-width: 500px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 80px 16px;
    }

    .hero {
        min-height: 80vh;
    }

    .hero-content {
        padding: 0 16px;
    }

    .logo-image {
        max-width: 400px;
        margin-bottom: 20px;
    }

    .service-item {
        padding: 48px 0;
    }

    .service-content {
        padding: 0 16px;
    }

    .service-title {
        font-size: 1.75rem;
    }

    .service-subtitle {
        font-size: 0.9375rem;
    }

    .service-description {
        font-size: 0.9375rem;
        line-height: 1.7;
    }

    .service-link {
        font-size: 0.9375rem;
    }

    .services {
        margin-bottom: 120px;
    }

    .social {
        flex-direction: column;
        gap: 24px;
        padding: 60px 0 0 0;
    }

    .footer {
        margin-top: 80px;
        padding-top: 40px;
    }

    .footer-nav {
        margin-bottom: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 60px 12px;
    }

    .hero {
        min-height: 70vh;
    }

    .hero-content {
        padding: 0 12px;
    }

    .logo-image {
        max-width: 280px;
        margin-bottom: 16px;
    }

    .service-item {
        padding: 40px 0;
    }

    .service-content {
        padding: 0 12px;
    }

    .service-number {
        font-size: 0.8125rem;
        margin-bottom: 12px;
    }

    .service-title {
        font-size: 1.5rem;
        margin-bottom: 6px;
    }

    .service-subtitle {
        font-size: 0.875rem;
        margin-bottom: 20px;
    }

    .service-description {
        font-size: 0.875rem;
        line-height: 1.7;
        margin-bottom: 20px;
    }

    .service-link {
        font-size: 0.875rem;
    }

    .service-coming-soon {
        font-size: 0.875rem;
    }

    .services {
        margin-bottom: 100px;
    }

    .social {
        gap: 20px;
        padding: 50px 0 0 0;
    }

    .social-link {
        font-size: 0.8125rem;
    }

    .social-icon {
        width: 18px;
        height: 18px;
    }

    .footer {
        margin-top: 60px;
        padding-top: 32px;
    }

    .footer-link {
        font-size: 0.8125rem;
    }

    .footer-separator {
        font-size: 0.8125rem;
        margin: 0 8px;
    }

    .footer-copyright {
        font-size: 0.6875rem;
        margin-top: 16px;
    }
}

@media (max-width: 360px) {
    .container {
        padding: 50px 10px;
    }

    .hero-content {
        padding: 0 10px;
    }

    .logo-image {
        max-width: 240px;
    }

    .service-content {
        padding: 0 10px;
    }

    .service-title {
        font-size: 1.375rem;
    }
}