/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s ease;
}

a:hover {
    opacity: 0.7;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: white;
    z-index: 1000;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

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

.logo img {
    height: 20px;
    width: auto;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

.main-nav a {
    font-size: 14px;
    font-weight: 400;
    letter-spacing: 0.03em;
}

.language-switch a {
    font-size: 14px;
    color: #666;
}

.language-switch a.active {
    color: #333;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    margin-top: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-image: url('images/main.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero-image img {
    display: none;
}

.hero-content {
    text-align: center;
    color: #333;
    position: relative;
    z-index: 1;
    padding: 40px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 8px;
    max-width: 600px;
}

.hero-title {
    font-size: 48px;
    font-weight: 300;
    line-height: 1.3;
    margin-bottom: 30px;
    letter-spacing: 0.08em;
}

.hero-subtitle {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 40px;
    color: #666;
}

.btn-primary {
    display: inline-block;
    padding: 15px 40px;
    background: #333;
    color: white;
    font-size: 14px;
    letter-spacing: 0.1em;
    transition: background 0.3s ease;
}

.btn-primary:hover {
    background: #555;
    opacity: 1;
}

.scroll-indicator {
    position: absolute;
    bottom: -80px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}

.scroll-indicator span {
    font-size: 12px;
    letter-spacing: 0.2em;
    color: #999;
}

.scroll-arrow {
    width: 1px;
    height: 40px;
    background: #999;
    margin: 10px auto 0;
    position: relative;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 6px solid #999;
}

/* News Section */
.news-section {
    padding: 100px 0;
    background: #f9f9f9;
}

.section-title {
    font-size: 48px;
    font-weight: 300;
    letter-spacing: 0.1em;
    margin-bottom: 10px;
}

.view-all {
    font-size: 14px;
    color: #666;
    float: right;
    margin-top: -40px;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.news-item {
    background: white;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.news-image {
    width: 100%;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: auto;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.news-item:hover .news-image img {
    transform: scale(1.05);
}

.news-content {
    padding: 25px;
}

.news-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 12px;
    color: #999;
}

.news-category {
    color: #666;
}

.news-title {
    font-size: 15px;
    font-weight: 400;
    line-height: 1.6;
    color: #333;
}

.news-more {
    text-align: center;
    margin-top: 60px;
}

.btn-outline {
    display: inline-block;
    padding: 15px 50px;
    border: 1px solid #333;
    color: #333;
    font-size: 14px;
    letter-spacing: 0.1em;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: #333;
    color: white;
    opacity: 1;
}

/* Concept Section */
.concept-section {
    padding: 100px 0;
    background: white;
}

.concept-content {
    margin-top: 60px;
}

.concept-subtitle {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 30px;
    margin-top: 50px;
    color: #333;
    letter-spacing: 0.05em;
}

.concept-subtitle:first-child {
    margin-top: 0;
}

.concept-text {
    font-size: 16px;
    line-height: 2;
    color: #666;
    margin-bottom: 25px;
}

.concept-highlight {
    font-size: 20px;
    font-weight: 500;
    color: #8B7355;
    text-align: center;
    padding: 40px 20px;
    margin: 40px 0;
    background: rgba(245, 240, 232, 0.5);
    border-left: 4px solid #8B7355;
    letter-spacing: 0.05em;
}

.concept-two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin: 50px 0;
}

.concept-two-column-text {
    display: flex;
    flex-direction: column;
}

.concept-two-column-image {
    overflow: hidden;
    border-radius: 8px;
}

.concept-two-column-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.concept-two-column:hover .concept-two-column-image img {
    transform: scale(1.05);
}

.concept-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin: 40px 0;
}

.concept-feature {
    display: flex;
    flex-direction: column;
}

.concept-feature-image {
    margin-bottom: 20px;
    overflow: hidden;
    border-radius: 8px;
}

.concept-feature-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.concept-feature:hover .concept-feature-image img {
    transform: scale(1.05);
}

.concept-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 40px 0;
}

.concept-gallery-item {
    overflow: hidden;
    border-radius: 8px;
    aspect-ratio: 1;
}

.concept-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.concept-gallery-item:hover img {
    transform: scale(1.1);
}

/* Links Section */
.links-section {
    padding: 80px 0;
    background: #f5f0e8;
}

.links-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.links-column h3 {
    font-size: 20px;
    font-weight: 500;
    color: #8B7355;
    margin-bottom: 30px;
    letter-spacing: 0.05em;
}

.links-column ul {
    list-style: none;
}

.links-column li {
    margin-bottom: 25px;
}

.links-column a {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 20px;
    background: white;
    border-radius: 8px;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.links-column a:hover {
    border-left-color: #8B7355;
    transform: translateX(5px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    opacity: 1;
}

.links-column a svg {
    margin-right: 10px;
    color: #8B7355;
    flex-shrink: 0;
}

.links-column .link-title {
    font-size: 16px;
    font-weight: 500;
    color: #333;
    display: flex;
    align-items: center;
}

.links-column .link-url {
    font-size: 13px;
    color: #999;
    word-break: break-all;
}

/* Message Section */
.message-section {
    padding: 100px 0;
    background: #f9f9f9;
}

.message-content {
    margin-top: 60px;
}

.message-subtitle {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 30px;
    color: #333;
    letter-spacing: 0.05em;
}

.message-body {
    display: grid;
    grid-template-columns: 1fr 250px;
    gap: 60px;
    align-items: start;
}

.message-image {
    overflow: hidden;
    border-radius: 8px;
}

.message-image img {
    width: 100%;
    height: auto;
    display: block;
}

.message-text-container {
    display: flex;
    flex-direction: column;
}

.message-text {
    font-size: 16px;
    line-height: 2;
    color: #666;
    margin-bottom: 25px;
}

.message-signature {
    margin-top: 50px;
    text-align: right;
}

.message-signature p {
    font-size: 14px;
    color: #999;
    margin-bottom: 10px;
}

.message-name {
    font-size: 18px !important;
    font-weight: 500;
    color: #333 !important;
}

/* Business Section */
.business-section {
    padding: 100px 0;
    background: white;
}

.business-vision {
    margin-top: 60px;
    padding-bottom: 60px;
    border-bottom: 2px solid #e0e0e0;
}

.business-vision-title {
    font-size: 24px;
    font-weight: 500;
    color: #8B7355;
    margin-bottom: 40px;
    letter-spacing: 0.05em;
}

.business-vision-content {
    margin-bottom: 50px;
}

.business-vision-content:last-child {
    margin-bottom: 0;
}

.business-vision-content h4 {
    font-size: 20px;
    font-weight: 500;
    color: #333;
    margin-bottom: 25px;
    letter-spacing: 0.05em;
}

.business-vision-content p {
    font-size: 16px;
    line-height: 2;
    color: #666;
    margin-bottom: 20px;
}

.business-vision-highlight {
    font-size: 18px;
    font-weight: 500;
    color: #8B7355;
    text-align: center;
    padding: 30px 20px;
    margin: 30px 0;
    background: rgba(245, 240, 232, 0.5);
    border-left: 4px solid #8B7355;
    letter-spacing: 0.05em;
}

.business-vision-items {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 30px;
}

.business-vision-item {
    padding: 25px;
    background: #f9f9f9;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.business-vision-item:hover {
    background: #f5f0e8;
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.business-vision-item h5 {
    font-size: 16px;
    font-weight: 500;
    color: #8B7355;
    margin-bottom: 15px;
    letter-spacing: 0.05em;
}

.business-vision-item p {
    font-size: 14px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 0;
}

.business-vision-image {
    margin-top: 50px;
    display: flex;
    justify-content: center;
}

.business-vision-image img {
    max-width: 800px;
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    display: block;
}

.business-content {
    margin-top: 60px;
}

.business-item {
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid #e0e0e0;
}

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

.business-item h3 {
    font-size: 20px;
    font-weight: 500;
    color: #8B7355;
    margin-bottom: 20px;
    letter-spacing: 0.05em;
}

.business-item h4 {
    font-size: 18px;
    font-weight: 400;
    color: #333;
    margin-bottom: 15px;
    letter-spacing: 0.05em;
}

.business-item p {
    font-size: 15px;
    line-height: 1.8;
    color: #666;
}

.business-item-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.business-item-image {
    overflow: hidden;
    border-radius: 8px;
}

.business-item-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.business-item:hover .business-item-image img {
    transform: scale(1.05);
}

.business-links {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid #e0e0e0;
}

.business-links h3 {
    font-size: 20px;
    font-weight: 500;
    color: #8B7355;
    margin-bottom: 20px;
}

.business-links ul {
    list-style: none;
}

.business-links li {
    margin-bottom: 12px;
    font-size: 15px;
    color: #666;
}

.business-links a {
    color: #8B7355;
    text-decoration: underline;
}

/* Company Section */
.company-section {
    padding: 100px 0;
    background: #f9f9f9;
}

.company-content {
    margin-top: 60px;
}

.company-content h3 {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 30px;
    color: #333;
}

.company-table,
.history-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 60px;
}

.company-table th,
.history-table td:first-child {
    width: 180px;
    padding: 20px;
    background: #f5f0e8;
    font-weight: 500;
    vertical-align: top;
    color: #333;
}

.company-table td,
.history-table td:last-child {
    padding: 20px;
    background: white;
    line-height: 1.8;
    color: #666;
}

.company-table tr,
.history-table tr {
    border-bottom: 1px solid #e0e0e0;
}

/* Media Section */
.media-section {
    padding: 100px 0;
    background: white;
}

.media-intro {
    font-size: 16px;
    color: #666;
    margin-top: 20px;
    margin-bottom: 50px;
    text-align: center;
}

.media-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 40px;
    margin-top: 40px;
}

.media-item {
    display: flex;
    flex-direction: column;
}

.media-item-image {
    width: 100%;
    margin-bottom: 15px;
}

.media-item-image img {
    width: 80%;
    height: auto;
    display: block;
    margin: 0 auto;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.media-item-text {
    display: flex;
    flex-direction: column;
}

.media-date {
    font-size: 12px;
    color: #999;
    margin-bottom: 5px;
}

.media-item-text h4 {
    font-size: 14px;
    font-weight: 500;
    color: #333;
    margin-bottom: 5px;
    line-height: 1.4;
}

.media-item-text p {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
}

.media-more {
    text-align: center;
    margin-top: 60px;
}

/* Footer Sections */
.footer-sections {
    background: #f9f9f9;
    padding: 80px 0;
}

.footer-section {
    padding: 40px 0;
    border-bottom: 1px solid #e0e0e0;
    cursor: pointer;
    transition: background 0.3s ease;
}

.footer-section:hover {
    background: rgba(0,0,0,0.02);
}

.footer-section-title {
    font-size: 28px;
    font-weight: 300;
    letter-spacing: 0.1em;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-section-title .arrow {
    font-size: 20px;
    transition: transform 0.3s ease;
}

.footer-section:hover .arrow {
    transform: translateX(5px);
}

.footer-section-subtitle {
    font-size: 14px;
    color: #666;
    margin-top: 10px;
    letter-spacing: 0.05em;
}

/* Footer */
.footer {
    background: #333;
    color: white;
    padding: 60px 0 30px;
}

.footer-top {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo {
    display: flex;
    align-items: center;
}

.footer-logo img {
    height: 50px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-nav {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-size: 14px;
    font-weight: 400;
    margin-bottom: 20px;
    letter-spacing: 0.05em;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 12px;
}

.footer-column a {
    font-size: 13px;
    color: #999;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: white;
    opacity: 1;
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid #555;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-links a {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid #666;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-links a:hover {
    border-color: white;
    background: white;
    color: #333;
    opacity: 1;
}

.copyright {
    font-size: 12px;
    color: #999;
    letter-spacing: 0.03em;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }

    .logo {
        order: 1;
    }

    .main-nav {
        order: 2;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 14px;
    }

    .news-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .concept-features {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .concept-gallery {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .concept-gallery-item {
        aspect-ratio: 16/9;
    }

    .concept-two-column {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .links-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .message-body {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .business-vision-items {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .business-item-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .business-item-image img {
        height: 250px;
    }

    .company-table th,
    .history-table td:first-child {
        width: 120px;
        padding: 15px;
        font-size: 14px;
    }

    .company-table td,
    .history-table td:last-child {
        padding: 15px;
        font-size: 14px;
    }

    .media-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-nav {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 30px;
    }
}