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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic Pro', 'Source Han Sans JP', sans-serif;
    line-height: 1.6;
    color: #e5e7eb;
    background-color: #0f0f23;
    font-size: 16px;
}

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

/* Header */
.header {
    background-color: #1e1b4b;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

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

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.025em;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
    padding: 4rem 0;
    min-height: 500px;
    display: flex;
    align-items: center;
}

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

.hero-title {
    font-size: 2.75rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.125rem;
    color: #d1d5db;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 160px;
}

.btn-primary {
    background-color: #ea580c;
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(234, 88, 12, 0.3);
}

.btn-primary:hover {
    background-color: #dc2626;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(234, 88, 12, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: #ea580c;
    border: 2px solid #ea580c;
}

.btn-secondary:hover {
    background-color: #ea580c;
    color: #ffffff;
    transform: translateY(-1px);
}

.btn-product {
    background-color: #1e1b4b;
    color: #ffffff;
    width: 100%;
    margin-top: 1rem;
}

.btn-product:hover {
    background-color: #312e81;
    transform: translateY(-1px);
}

.hero-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.image-placeholder {
    background-color: #374151;
    border-radius: 12px;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #9ca3af;
    font-weight: 500;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* Product Images */
.product-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

/* Sections */
section {
    padding: 4rem 0;
}

.centered-section {
    text-align: center;
}

.centered-section .container > * {
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: #ffffff;
    text-align: center;
    margin-bottom: 3rem;
}

/* About Section */
.about {
    background-color: #111827;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.about-card {
    background-color: #1f2937;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    border: 1px solid #374151;
}

.card-icon {
    width: 60px;
    height: 60px;
    background-color: #ea580c;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: #ffffff;
}

.about-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 1rem;
}

.about-card p {
    color: #d1d5db;
    line-height: 1.6;
}

/* Features Section */
.features {
    background-color: #0f0f23;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.feature-item {
    background-color: #1f2937;
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid #ea580c;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.feature-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.feature-item p {
    color: #d1d5db;
}

/* Products Section */
.products {
    background-color: #111827;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.product-card {
    background-color: #1f2937;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    border: 1px solid #374151;
}

.product-image {
    height: 200px;
}

.product-info {
    padding: 1.5rem;
}

.product-name {
    font-size: 1.5rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 1rem;
}

.product-description {
    color: #d1d5db;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.product-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: #ea580c;
    margin-bottom: 1rem;
    text-align: center;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.feature-tag {
    background-color: #312e81;
    color: #e0e7ff;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* How It Works Section */
.how-it-works {
    background-color: #0f0f23;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.step {
    text-align: center;
    background-color: #1f2937;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: #ea580c;
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.step h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 1rem;
}

.step p {
    color: #d1d5db;
}

/* Benefits Section */
.benefits {
    background-color: #111827;
}

.benefits-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.benefit-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.benefit-icon {
    color: #ea580c;
    flex-shrink: 0;
}

.benefit-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.benefit-item p {
    color: #d1d5db;
}

/* Installation Section */
.installation {
    background-color: #0f0f23;
}

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

.installation-text h3 {
    font-size: 1.75rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 1rem;
}

.installation-text p {
    color: #d1d5db;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.installation-features {
    list-style: none;
}

.installation-features li {
    color: #d1d5db;
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.installation-features li::before {
    content: '✓';
    color: #ea580c;
    font-weight: 700;
    position: absolute;
    left: 0;
}

.installation-image {
    height: 300px;
}

.installation-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 12px;
}

/* Subscriptions Section */
.subscriptions {
    background-color: #111827;
}

.subscription-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.subscription-card {
    background-color: #1f2937;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    border: 1px solid #374151;
}

.subscription-card.featured {
    border-color: #ea580c;
    position: relative;
    transform: scale(1.05);
}

.plan-header {
    text-align: center;
    margin-bottom: 2rem;
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.plan-description {
    color: #d1d5db;
}

.plan-features {
    list-style: none;
}

.plan-features li {
    color: #d1d5db;
    padding: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
    border-bottom: 1px solid #374151;
}

.plan-features li:last-child {
    border-bottom: none;
}

.plan-features li::before {
    content: '✓';
    color: #ea580c;
    font-weight: 700;
    position: absolute;
    left: 0;
}

/* Contact Section */
.contact {
    background-color: #0f0f23;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background-color: #1f2937;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.contact-icon {
    color: #ea580c;
    flex-shrink: 0;
}

.contact-item h4 {
    color: #ffffff;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: #d1d5db;
}

.contact-form {
    height: 400px;
}

.contact-form img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 12px;
}

/* Footer */
.footer {
    background-color: #1e1b4b;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-main {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    margin-bottom: 2rem;
    align-items: start;
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

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

.footer-section {
}

.footer-section h4 {
    color: #ffffff;
    font-weight: 600;
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #d1d5db;
    text-decoration: none;
}

.footer-section ul li a:hover {
    color: #ea580c;
}

.footer-description {
    color: #d1d5db;
    margin-top: 1rem;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 1rem;
    text-align: center;
}

.footer-bottom p {
    color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-layout {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .contact-content,
    .installation-content {
        grid-template-columns: 1fr;
    }

    .subscription-card.featured {
        transform: none;
    }

    .hero-buttons {
        justify-content: center;
    }

    .footer-main {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .benefit-item {
        flex-direction: column;
        text-align: center;
    }

    .container {
        padding: 0 15px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.875rem;
    }

    .btn {
        min-width: auto;
        width: 100%;
    }

    .hero-buttons {
        flex-direction: column;
    }
}