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

:root {
    --primary-black: #000000;
    --primary-white: #FFFFFF;
    --gray-light: #F5F5F5;
    --gray-medium: #333333;
}

body {
    font-family: 'Noto Serif JP', serif;
    background-color: var(--primary-black);
    color: var(--primary-white);
    line-height: 1.6;
}

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

/* Header */
.header {
    background-color: var(--primary-black);
    border-bottom: 1px solid var(--primary-white);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-circle {
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary-white);
    border-radius: 50%;
    position: relative;
}

.logo-circle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 1px solid var(--primary-white);
    border-radius: 50%;
}

.logo-text {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 2px;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav a {
    color: var(--primary-white);
    text-decoration: none;
    font-size: 14px;
    transition: opacity 0.3s;
    letter-spacing: 1px;
}

.nav a:hover {
    opacity: 0.7;
}

/* Hero Section */
.hero {
    padding: 120px 0;
    text-align: center;
    position: relative;
}

.zen-circle {
    width: 200px;
    height: 200px;
    border: 1px solid var(--primary-white);
    border-radius: 50%;
    margin: 0 auto 40px;
    position: relative;
}

.zen-circle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--primary-white);
}

.zen-circle::after {
    content: '';
    position: absolute;
    top: 25%;
    left: 25%;
    width: 50%;
    height: 50%;
    border: 1px solid var(--primary-white);
    border-radius: 50%;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 300;
    letter-spacing: 3px;
}

.hero-subtitle {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.8;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background-color: var(--primary-white);
    color: var(--primary-black);
    text-decoration: none;
    border: 2px solid var(--primary-white);
    transition: all 0.3s;
    font-weight: 600;
    letter-spacing: 1px;
}

.cta-button:hover {
    background-color: var(--primary-black);
    color: var(--primary-white);
}

/* Benefits Section */
.benefits {
    padding: 80px 0;
    background-color: var(--primary-white);
    color: var(--primary-black);
}

.benefits h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    font-weight: 300;
    letter-spacing: 2px;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.benefit-card {
    text-align: center;
    padding: 30px;
}

.icon-circle {
    width: 80px;
    height: 80px;
    border: 2px solid var(--primary-black);
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.icon-quality,
.icon-content,
.icon-device {
    width: 40px;
    height: 40px;
    position: relative;
}

.icon-quality::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 40px;
    background: var(--primary-black);
}

.icon-quality::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    width: 40px;
    height: 2px;
    background: var(--primary-black);
}

.icon-content::before {
    content: '';
    position: absolute;
    top: 5px;
    left: 5px;
    width: 30px;
    height: 30px;
    border: 2px solid var(--primary-black);
}

.icon-device::before {
    content: '';
    position: absolute;
    top: 0;
    left: 10px;
    width: 20px;
    height: 30px;
    border: 2px solid var(--primary-black);
    border-radius: 3px;
}

.benefit-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    font-weight: 400;
}

.benefit-card p {
    font-size: 16px;
    opacity: 0.8;
}

/* How It Works Section */
.how-it-works {
    padding: 80px 0;
}

.how-it-works h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    font-weight: 300;
    letter-spacing: 2px;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.step {
    text-align: center;
    padding: 30px;
    border: 1px solid var(--primary-white);
}

.step-number {
    width: 60px;
    height: 60px;
    border: 2px solid var(--primary-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
    font-weight: 300;
}

.step h3 {
    font-size: 20px;
    margin-bottom: 15px;
    font-weight: 400;
}

.step p {
    font-size: 15px;
    opacity: 0.8;
}

.how-it-works .cta-button {
    display: block;
    width: fit-content;
    margin: 0 auto;
}

/* Differentials Section */
.differentials {
    padding: 80px 0;
    background-color: var(--primary-white);
    color: var(--primary-black);
}

.differentials h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    font-weight: 300;
    letter-spacing: 2px;
}

.diff-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.diff-item {
    text-align: center;
    padding: 30px;
}

.icon-speed::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 5px;
    width: 0;
    height: 0;
    border-left: 15px solid var(--primary-black);
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
}

.icon-stable::before {
    content: '';
    position: absolute;
    top: 15px;
    left: 10px;
    width: 20px;
    height: 10px;
    border: 2px solid var(--primary-black);
    border-top: none;
}

.icon-support::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    width: 20px;
    height: 20px;
    border: 2px solid var(--primary-black);
    border-radius: 50%;
}

.icon-easy::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 5px;
    width: 30px;
    height: 2px;
    background: var(--primary-black);
}

.diff-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    font-weight: 400;
}

.diff-item p {
    font-size: 15px;
    opacity: 0.8;
}

/* Plans Section */
.plans {
    padding: 80px 0;
}

.plans h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 20px;
    font-weight: 300;
    letter-spacing: 2px;
}

.plans-intro {
    text-align: center;
    font-size: 16px;
    margin-bottom: 60px;
    opacity: 0.8;
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.plan-card {
    border: 1px solid var(--primary-white);
    padding: 40px 30px;
    text-align: center;
    position: relative;
    transition: transform 0.3s;
}

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

.plan-card.featured {
    border: 2px solid var(--primary-white);
}

.badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-white);
    color: var(--primary-black);
    padding: 5px 20px;
    font-size: 12px;
    letter-spacing: 1px;
}

.plan-icon {
    width: 60px;
    height: 60px;
    border: 2px solid var(--primary-white);
    border-radius: 50%;
    margin: 0 auto 20px;
}

.plan-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    font-weight: 400;
}

.discount {
    font-size: 18px;
    color: var(--primary-white);
    margin-bottom: 15px;
    font-weight: 600;
}

.plan-desc {
    font-size: 15px;
    margin-bottom: 30px;
    opacity: 0.8;
}

.plan-button {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary-white);
    color: var(--primary-black);
    text-decoration: none;
    border: 2px solid var(--primary-white);
    transition: all 0.3s;
    font-weight: 600;
    letter-spacing: 1px;
}

.plan-button:hover {
    background-color: var(--primary-black);
    color: var(--primary-white);
}

/* Features Section */
.features {
    padding: 80px 0;
    background-color: var(--primary-white);
    color: var(--primary-black);
}

.features h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    font-weight: 300;
    letter-spacing: 2px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-item {
    text-align: center;
    padding: 30px;
}

.feature-icon {
    width: 80px;
    height: 80px;
    border: 2px solid var(--primary-black);
    border-radius: 50%;
    margin: 0 auto 20px;
    position: relative;
}

.icon-channels::before {
    content: '';
    position: absolute;
    top: 25px;
    left: 25px;
    width: 30px;
    height: 20px;
    border: 2px solid var(--primary-black);
}

.icon-hd::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 20px;
    width: 15px;
    height: 15px;
    border: 2px solid var(--primary-black);
}

.icon-hd::after {
    content: '';
    position: absolute;
    top: 30px;
    right: 20px;
    width: 15px;
    height: 15px;
    border: 2px solid var(--primary-black);
}

.icon-vod::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 25px;
    width: 0;
    height: 0;
    border-left: 20px solid var(--primary-black);
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
}

.icon-compatible::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    width: 40px;
    height: 30px;
    border: 2px solid var(--primary-black);
    border-radius: 3px;
}

.feature-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    font-weight: 400;
}

.feature-item p {
    font-size: 15px;
    opacity: 0.8;
}

/* Guarantee Section */
.guarantee {
    padding: 80px 0;
}

.guarantee-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.guarantee-icon {
    width: 100px;
    height: 100px;
    border: 2px solid var(--primary-white);
    border-radius: 50%;
    margin: 0 auto 30px;
    position: relative;
}

.guarantee-icon::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 35px;
    width: 15px;
    height: 25px;
    border-right: 3px solid var(--primary-white);
    border-bottom: 3px solid var(--primary-white);
    transform: rotate(45deg);
}

.guarantee h2 {
    font-size: 36px;
    margin-bottom: 20px;
    font-weight: 300;
    letter-spacing: 2px;
}

.guarantee p {
    font-size: 16px;
    margin-bottom: 40px;
    opacity: 0.8;
    line-height: 1.8;
}

/* Reviews Section */
.reviews {
    padding: 80px 0;
    background-color: var(--primary-white);
    color: var(--primary-black);
}

.reviews h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 20px;
    font-weight: 300;
    letter-spacing: 2px;
}

.reviews-count {
    text-align: center;
    font-size: 18px;
    margin-bottom: 60px;
    font-weight: 600;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.review-card {
    border: 1px solid var(--primary-black);
    padding: 25px;
}

.review-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.reviewer-avatar {
    width: 50px;
    height: 50px;
    border: 2px solid var(--primary-black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 600;
}

.reviewer-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 5px;
}

.reviewer-info p {
    font-size: 13px;
    opacity: 0.7;
}

.reviewer-info .reviewer-name {
    opacity: 1;
}

.stars {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--primary-black);
}

.review-card > p {
    font-size: 14px;
    line-height: 1.6;
    opacity: 0.8;
}

/* FAQ Section */
.faq {
    padding: 80px 0;
}

.faq h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    font-weight: 300;
    letter-spacing: 2px;
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--primary-white);
    padding: 30px;
    margin-bottom: 20px;
}

.faq-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    font-weight: 400;
}

.faq-item p {
    font-size: 15px;
    line-height: 1.8;
    opacity: 0.8;
}

/* Final CTA Section */
.final-cta {
    padding: 100px 0;
    text-align: center;
    background-color: var(--primary-white);
    color: var(--primary-black);
}

.final-cta h2 {
    font-size: 42px;
    margin-bottom: 20px;
    font-weight: 300;
    letter-spacing: 2px;
}

.final-cta p {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.8;
}

.final-cta .cta-button {
    background-color: var(--primary-black);
    color: var(--primary-white);
    border-color: var(--primary-black);
}

.final-cta .cta-button:hover {
    background-color: var(--primary-white);
    color: var(--primary-black);
}

/* Footer */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--primary-white);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: var(--primary-white);
    text-decoration: none;
    font-size: 14px;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 0.7;
}

.footer-copy {
    text-align: center;
    font-size: 13px;
    opacity: 0.7;
}

/* Responsive */
@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .zen-circle {
        width: 150px;
        height: 150px;
    }
    
    h2 {
        font-size: 28px !important;
    }
    
    .benefits-grid,
    .steps,
    .diff-grid,
    .plans-grid,
    .features-grid,
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 20px;
    }
    
    .footer-links {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
}