:root {
    --primary-color: #A6894B;
    --text-color: #333;
    --bg-light: #F9F9F9;
    --white: #FFFFFF;
    --border-color: #E0E0E0;
    --max-width: 1200px;
}

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

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--white);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 100px 0;
}

.bg-light {
    background-color: var(--bg-light);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 60px;
    font-weight: 700;
}

.card {
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

/* Hero Section */
.hero {
    height: 100vh;
    background-image: url('hero.png');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    color: var(--white);
    text-align: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
}

.hero-content {
    position: relative;
    z-index: 1;
}

.logo-text {
    font-family: 'Inter', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: 0.2rem;
    margin-bottom: 20px;
    display: block;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 30px;
}

.hero h1 .subtitle {
    font-size: 1.8rem;
    font-weight: 400;
    display: block;
    margin-top: 10px;
}

.hero-credits {
    font-size: 1rem;
    opacity: 0.9;
    margin-top: 50px;
}

/* Overview */
.overview-grid {
    max-width: 900px;
    margin: 0 auto;
}

.lead {
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 30px;
}

.partner-system {
    margin-top: 60px;
    border-top: 1px solid var(--border-color);
    padding-top: 40px;
    text-align: center;
}

.partner-title {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--text-color);
}

.partner-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 50px;
}

.sumitomo-logo {
    max-height: 120px;
    width: auto;
}

.partner .label {
    font-size: 0.8rem;
    color: #888;
    display: block;
    margin-bottom: 10px;
}

/* Features */
.feature-highlights {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
}

.feature-panels {
    display: flex;
    flex-direction: row;
    gap: 20px;
    margin-bottom: 60px;
    justify-content: center;
}

.feature-panel {
    flex: 1;
    width: 33.33%;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    object-fit: cover;
}

.feature-item {
    flex: 1;
    text-align: center;
}

.feature-item .icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-item h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

/* Data Table */
.data-table-wrapper {
    margin-top: 60px;
    overflow-x: auto;
}

.tech-charts {
    display: flex;
    flex-direction: row;
    gap: 30px;
    margin-top: 20px;
    margin-bottom: 50px;
    align-items: flex-start;
    justify-content: center;
}

.tech-chart {
    flex: 1;
    width: 48%;
    border-radius: 4px;
}

.table-title {
    text-align: center;
    margin-bottom: 30px;
    font-size: 1.5rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
}

.data-table th, .data-table td {
    padding: 20px;
    border: 1px solid var(--border-color);
}

.data-table th {
    background-color: var(--primary-color);
    color: white;
}

.data-table tr:nth-child(even) {
    background-color: #fcfcfc;
}

/* Value Columns */
.value-grid {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

.value-col {
    flex: 1;
}

.value-icon {
    width: 100%;
    max-width: 280px;
    height: auto;
    margin: 10px auto 20px;
    display: block;
}

img[src="solution_hotel_icons.png"] {
    max-width: 180px;
}

.value-col .category {
    display: inline-block;
    background: #333;
    color: white;
    padding: 5px 15px;
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.issue, .solution {
    margin-bottom: 20px;
}

.issue h4 {
    color: #e57373;
    margin-bottom: 10px;
}

.solution h4 {
    color: #64b5f6;
    margin-bottom: 10px;
}

.advantage-box {
    margin-top: 40px;
    border: 2px solid var(--primary-color);
    text-align: center;
}

.advantage-items {
    display: flex;
    gap: 30px;
    margin-top: 30px;
}

.adv-item {
    flex: 1;
    text-align: center;
}

.adv-item h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

/* Lineup */
.lineup-grid-main {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 30px;
}

.lineup-extra {
    max-width: 400px;
    margin: 0 auto 40px;
}

.product-card.text-only {
    text-align: center;
    padding: 20px;
}

.product-card {
    background: var(--white);
    padding: 20px;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
}

.product-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 20px;
}

.product-info h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
    color: var(--primary-color);
}

.price {
    font-size: 0.9rem;
    color: #666;
}

.lineup-note {
    text-align: center;
    font-size: 0.9rem;
    color: #888;
}

/* Flow */
.flow-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    text-align: center;
}

.step-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.step h4 {
    margin-bottom: 15px;
}

/* Contact */
.contact-card {
    max-width: 1000px;
    margin: 0 auto;
    padding: 60px;
}

.contact-title {
    font-size: 2.2rem;
    margin-bottom: 40px;
    color: var(--primary-color);
    text-align: center;
}

.contact-flex {
    display: flex;
    gap: 60px;
}

.contact-info-col {
    flex: 1;
}

.contact-form-col {
    flex: 1.2;
}

.contact-intro {
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.company-detail.logo {
    margin-bottom: 2rem;
}

.logo-img {
    height: 120px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.company-detail p {
    margin-bottom: 10px;
}

.company-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 20px;
}

.contact-logo {
    margin-bottom: 20px;
}

.logo-small {
    height: 60px;
    width: auto;
}

/* Form Styles */
.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 8px;
}

.form-group input, 
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    background: #fdfdfd;
}

.form-group input:focus, 
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(166, 137, 75, 0.1);
}

.submit-btn {
    width: 100%;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
}

/* Footer */
.footer {
    text-align: center;
    padding: 40px 0;
    background: #333;
    color: white;
    font-size: 0.9rem;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 10px !important;
    }
    .section-padding {
        padding: 50px 0;
    }
    .section-title { 
        font-size: 1.6rem; 
        margin-bottom: 30px;
    }
    .hero h1 { font-size: 2rem; }
    .hero h1 .subtitle { font-size: 1rem; }
    
    .feature-highlights, 
    .value-grid, 
    .advantage-items, 
    .partner-logos, 
    .contact-flex {
        flex-direction: column !important;
        gap: 30px !important;
    }
    
    .contact-info-col, 
    .contact-form-col {
        width: 100% !important;
        flex: none !important;
    }

    .feature-panels {
        flex-direction: column !important;
        gap: 15px;
    }
    .feature-panel {
        width: 100% !important;
    }
    
    .tech-charts {
        flex-direction: column !important;
        gap: 20px;
    }
    .tech-chart {
        width: 100% !important;
    }
    
    .lineup-grid-main {
        grid-template-columns: 1fr !important;
        gap: 20px;
    }
    
    .contact-card {
        padding: 40px 15px !important;
    }
    
    .company-name {
        font-size: 1.2rem;
    }
    
    .company-detail .phone {
        font-size: 1.4rem;
    }

    .sumitomo-logo {
        max-height: 70px;
    }
}