:root {
    --primary: #52a39a;
    --secondary: #e8f5f4;
    --accent: #ff8e71;
    --ink: #333333;
    --ink-light: #666666;
    --white: #ffffff;
}

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

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

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.header {
    background: var(--white);
    padding: 20px 0;
    border-bottom: 1px solid var(--secondary);
}

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

.logo {
    font-size: 1.5rem;
    color: var(--primary);
    font-weight: 700;
}

.nav a {
    text-decoration: none;
    color: var(--ink);
    margin-left: 20px;
    font-weight: 500;
}

.btn-sm {
    background: var(--primary);
    color: var(--white) !important;
    padding: 10px 20px;
    border-radius: 4px;
}

/* Hero */
.hero {
    background: var(--secondary);
    padding: 80px 0;
}

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

.hero-text {
    flex: 1;
}

.hero-tag {
    color: var(--primary);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    margin-bottom: 15px;
}

.hero-title {
    font-size: 3rem;
    line-height: 1.25;
    margin-bottom: 20px;
}

.hero-lead {
    font-size: 1.1rem;
    color: var(--ink-light);
    margin-bottom: 40px;
}

.btn-main {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    text-decoration: none;
    padding: 18px 40px;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 6px;
    box-shadow: 0 4px 15px rgba(82, 163, 154, 0.3);
}

.btn-note {
    font-size: 0.9rem;
    color: var(--primary);
    font-weight: 600;
    margin-top: 10px;
}

.hero-image {
    flex: 1;
}

.hero-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 20px 20px 0 var(--white);
}

/* Features */
.features {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-item {
    text-align: center;
    padding: 30px;
    background: var(--secondary);
    border-radius: 8px;
}

.feature-num {
    font-size: 2rem;
    color: var(--primary);
    font-weight: 700;
    opacity: 0.3;
}

.feature-item h3 {
    margin: 15px 0;
    font-weight: 700;
}

.footer {
    padding: 60px 0;
    text-align: center;
    background: #333;
    color: var(--white);
    font-size: 0.85rem;
}

/* Problem / Symptoms */
.problem-section {
    padding: 100px 0;
    background: var(--white);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.problem-card {
    background: var(--secondary);
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
}

.problem-card h3 {
    color: var(--primary);
    margin-bottom: 15px;
    font-size: 1.25rem;
}

.problem-card p {
    font-size: 0.95rem;
    color: var(--ink-light);
}

/* Pricing */
.pricing-section {
    padding: 100px 0;
    background: var(--secondary);
}

.pricing-table {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.pricing-head {
    background: var(--primary);
    color: var(--white);
    padding: 30px;
    text-align: center;
}

.pricing-head h3 {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.pricing-body {
    padding: 40px;
}

.price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid var(--secondary);
}

.price-row:last-child {
    border-bottom: none;
}

.price-label {
    font-weight: 700;
}

.price-value {
    font-size: 1.25rem;
    color: var(--primary);
    font-weight: 700;
}

.price-value.old {
    text-decoration: line-through;
    color: var(--ink-light);
    font-size: 1rem;
    margin-right: 10px;
}

/* Flow */
.flow-section {
    padding: 100px 0;
}

.flow-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.flow-step {
    text-align: center;
    position: relative;
}

.step-num {
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-weight: 700;
}

.flow-step h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.flow-step p {
    font-size: 0.85rem;
    color: var(--ink-light);
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: var(--primary);
    color: var(--white);
    text-align: center;
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.cta-section p {
    margin-bottom: 30px;
    opacity: 0.9;
}

.btn-white {
    display: inline-block;
    background: var(--white);
    color: var(--primary);
    text-decoration: none;
    padding: 18px 50px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 1.1rem;
}

/* Contact Form */
.contact-section {
    padding: 100px 0;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
    font-size: 0.9rem;
}

.form-input, .form-textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
}

.form-textarea {
    height: 120px;
}

.form-submit {
    width: 100%;
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 18px;
    border-radius: 4px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
}

@media (max-width: 768px) {
    .hero-flex { flex-direction: column-reverse; text-align: center; }
    .hero-title { font-size: 2.25rem; }
    .features-grid, .problem-grid, .flow-steps { grid-template-columns: 1fr; }
    .flow-step { margin-bottom: 40px; }
}