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

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fafafa;
}

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

header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 500;
    color: #333;
}

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

.language-selector {
    margin-left: auto;
}

.language-selector select {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background: #fff;
    font-size: 0.9rem;
    color: #333;
    cursor: pointer;
}

.hero {
    padding: 4rem 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
}

.btn-primary {
    background: #FF9E9D;
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.btn-primary:hover {
    background: #e88a89;
    transform: translateY(-2px);
}

.app-screenshot {
    max-width: 300px;
    height: auto;
    margin: 0 auto;
    display: block;
}

.features {
    padding: 4rem 0;
    background: #fff;
}

.features h3 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    color: #333;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature {
    text-align: center;
    padding: 2rem;
    border-radius: 12px;
    background: #f8f9fa;
    transition: transform 0.3s ease;
}

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

.feature-icon {
    margin-bottom: 1rem;
    color: #FF9E9D !important;
    display: flex;
    justify-content: center;
}

.feature-icon svg {
    color: #FF9E9D !important;
    stroke: #FF9E9D !important;
}

.feature h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
    font-weight: 500;
}

.feature p {
    color: #666;
    line-height: 1.5;
}

.target-users {
    padding: 4rem 0;
    background: #fff;
}

.target-users h3 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    color: #333;
}

.target-users-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.target-user {
    text-align: center;
    padding: 2rem;
    border-radius: 12px;
    background: #f8f9fa;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.target-user:hover {
    transform: translateY(-5px);
}

.target-user h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #FF9E9D;
}

.target-user p {
    color: #666;
    line-height: 1.6;
}

.simple {
    padding: 4rem 0;
    background: #f8f9fa;
    text-align: center;
}

.simple h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #333;
}

.simple p {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.download {
    padding: 4rem 0;
    background: #fff;
    text-align: center;
}

.download h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #333;
}

.download-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn-download {
    background: #333;
    color: white;
    border: none;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-download:hover {
    background: #555;
    transform: translateY(-2px);
}

.store-logo {
    font-size: 1.2rem;
}

footer {
    background: #333;
    color: white;
    padding: 2.5rem 0 2rem 0;
}

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

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem 3rem;
    margin-bottom: 2rem;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 400;
    transition: all 0.3s ease;
    padding: 0.5rem 0;
    position: relative;
}

.footer-links a:hover {
    color: #FF9E9D;
    transform: translateY(-1px);
}

.footer-copyright {
    text-align: center;
    color: #999;
    font-size: 0.85rem;
    border-top: 1px solid #555;
    padding-top: 1.5rem;
}

@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-content {
        text-align: center;
        order: 2;
    }

    .hero-image {
        order: 1;
    }

    .hero-content h2 {
        font-size: 2rem;
    }

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

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

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .app-screenshot {
        max-width: 250px;
    }

    .footer-links {
        gap: 1.5rem 2rem;
    }

    .footer-links a {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero-content h2 {
        font-size: 1.8rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .app-screenshot {
        max-width: 200px;
    }

    .footer-links {
        flex-direction: column;
        gap: 1.2rem;
        text-align: center;
    }

    .footer-links a {
        font-size: 0.9rem;
        padding: 0.3rem 0;
    }

    .footer-content {
        padding: 0 15px;
    }
}