/* 基本設定 */
body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.8;
    margin: 0;
    padding: 0;
    color: #333333;
    background-color: #fdfdfd;
}

a {
    color: #0056b3;
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: #003d82;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

/* ヘッダー */
.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background-color: rgba(255, 255, 255, 0.8);
    border-bottom: 1px solid #e0e0e0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.logo-container a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #333333;
}

.logo {
    height: 40px;
    margin-right: 15px;
}

.header-company-name {
    font-size: 1.2rem;
    font-weight: 700;
}

.main-nav {
    display: flex;
}

.main-nav a {
    color: #333333;
    text-decoration: none;
    margin: 0 20px;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 0.1em;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #0056b3;
    transition: width 0.3s;
}

.main-nav a:hover::after, .main-nav a.active::after {
    width: 100%;
}

/* ヒーローセクション */
.hero {
    position: relative;
    height: 85vh;
    background-image: url('assets/hero-image.jpg');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 20px;
}

.company-name {
    font-size: 4.5rem;
    font-weight: 900;
    margin: 0;
    color: #ffffff;
    text-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    letter-spacing: 0.1em;
}

.hero-copy {
    font-size: 1.8rem;
    margin: 1rem 0;
    color: #ffffff;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

/* 事業紹介セクション */
.business-intro {
    background-color: #f4f4f4;
}

.business-intro .container {
    display: flex;
    gap: 40px;
}

.intro-card {
    flex: 1;
    background-color: #ffffff;
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 40px;
    border: 1px solid #e0e0e0;
    transition: transform 0.3s, box-shadow 0.3s;
}

.intro-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.intro-text h3 {
    font-size: 2rem;
    color: #0056b3;
    margin-top: 0;
}

.button-secondary {
    display: inline-block;
    background-color: #0056b3;
    color: #ffffff;
    padding: 12px 25px;
    border-radius: 5px;
    font-weight: bold;
    text-transform: uppercase;
    margin-top: 20px;
    border: 2px solid #0056b3;
    transition: background-color 0.3s, color 0.3s, transform 0.3s;
}

.button-secondary:hover {
    background-color: #003d82;
    border-color: #003d82;
    transform: translateY(-2px);
}

/* ページヘッダー */
.page-header {
    background-color: #f4f4f4;
    padding: 3rem 0;
    text-align: center;
    border-bottom: 1px solid #e0e0e0;
}

.page-header h1 {
    font-size: 3rem;
    margin: 0;
    color: #0056b3;
}

.page-header p {
    font-size: 1.2rem;
    color: #666;
}

.page-header .page-caption {
    max-width: 800px;
    margin: 0 auto;
}

/* 会社概要ページ */
.about-container {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

.about-content {
    display: flex;
    gap: 40px;
    align-items: center;
}

.company-photo-container {
    flex: 1;
}

.company-photo-container img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.company-info {
    flex: 1;
}

.company-info dl {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 20px;
    font-size: 1.1rem;
}

.company-info dt {
    font-weight: 700;
    color: #0056b3;
}

.company-info dd {
    margin: 0;
}

/* お問い合わせページ */
.contact-container {
    text-align: center;
    background-color: #ffffff;
    padding: 40px;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

.contact-info dt {
    font-size: 1.2rem;
    font-weight: 700;
    color: #0056b3;
    margin-top: 2rem;
}

.contact-info dd {
    margin: 0.5rem 0;
    font-size: 1.5rem;
}

/* ブランド紹介 */
.brand-intro {
    text-align: center;
    padding: 60px 20px;
    background-color: #ffffff;
}

.brand-logo {
    max-width: 300px;
    margin-bottom: 20px;
}

.brand-concept {
    font-size: 1.2rem;
    color: #555;
    max-width: 700px;
    margin: 0 auto;
}

/* 製品紹介 */
.product-feature {
    background-color: #f4f4f4;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: #0056b3;
    margin-bottom: 40px;
}

.product-showcase {
    display: flex;
    gap: 40px;
    align-items: center;
    background-color: #ffffff;
    padding: 40px;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

.product-image {
    flex: 1;
}

.product-image img {
    width: 100%;
    border-radius: 8px;
}

.product-details {
    flex: 1;
}

.product-name {
    font-size: 2.2rem;
    font-weight: 900;
    margin: 0 0 10px 0;
    color: #333;
}

.product-hook {
    font-size: 1.3rem;
    font-style: italic;
    color: #555;
    margin-bottom: 20px;
}

.product-description {
    margin-bottom: 20px;
}

.product-specs h4 {
    font-size: 1.2rem;
    color: #0056b3;
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 5px;
    margin-bottom: 15px;
}

.product-specs dl {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 10px;
}

.product-specs dt {
    font-weight: bold;
}

.product-specs dd {
    margin: 0;
}

.button-primary {
    display: inline-block;
    background-color: #0056b3;
    color: #ffffff;
    padding: 15px 30px;
    border-radius: 5px;
    font-weight: bold;
    text-transform: uppercase;
    margin-top: 20px;
    transition: background-color 0.3s, transform 0.3s;
}

.button-primary:hover {
    background-color: #003d82;
    transform: translateY(-2px);
}

/* フッター */
footer {
    background-color: #333333;
    color: #f4f4f4;
    text-align: center;
    padding: 2rem;
    margin-top: 2rem;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .site-header {
        flex-direction: column;
        padding: 15px;
    }

    .logo-container {
        margin-bottom: 15px;
    }

    .main-nav {
        flex-direction: column;
    }

    .main-nav a {
        margin: 0 10px;
        font-size: 0.9rem;
    }

    .business-intro .container,
    .about-content,
    .gallery-container .gallery-case,
    .gallery-container .gallery-case.reverse {
        flex-direction: column;
    }

    .company-info dl {
        grid-template-columns: 1fr;
    }

    .product-showcase {
        flex-direction: column;
    }
}

/* SNSリンク */
.social-links {
    margin-top: 30px;
}

.social-icon {
    height: 40px;
    transition: transform 0.3s;
}

.social-icon:hover {
    transform: scale(1.1);
}

.instagram-contact {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid #e0e0e0;
}

.instagram-contact p {
    margin-bottom: 15px;
}

.instagram-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: bold;
    font-size: 1.1rem;
}

.instagram-link .social-icon {
    height: 30px;
}

/* フォトギャラリー */
.gallery-container .gallery-case {
    display: flex;
    gap: 40px;
    align-items: center;
    background-color: #ffffff;
    padding: 40px;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    margin-bottom: 40px;
}

.gallery-container .gallery-case.reverse {
    flex-direction: row-reverse;
}

.gallery-image {
    flex: 1;
}

.gallery-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.gallery-description {
    flex: 1;
}

.gallery-description h3 {
    font-size: 2rem;
    color: #0056b3;
    margin-top: 0;
}

.gallery-description p {
    font-size: 1.1rem;
    line-height: 1.8;
}

/* スライドショー */
.slideshow-container {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    overflow: hidden;
}

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    z-index: 0;
}

.slide.active {
    opacity: 1;
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
}

.hero-content {
    position: relative;
    z-index: 2;
}