:root {
    --primary-color: #0066ff;
    --primary-dark: #004ecc;
    --secondary-color: #0a1128;
    --text-color: #333333;
    --light-text: #ffffff;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --accent-color: #ff9900;
    --success-color: #28a745;
    --border-radius: 12px;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

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

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

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.3;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

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

/* Header */
.header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    letter-spacing: -0.5px;
}

.nav ul {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav a {
    font-weight: 500;
    color: var(--secondary-color);
    font-size: 0.95rem;
}

.nav a:hover {
    color: var(--primary-color);
}

.btn-sm {
    padding: 8px 20px;
    font-size: 0.9rem !important;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff !important;
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.4);
}

.btn-outline {
    background: transparent;
    border: 2px solid #fff;
    color: #fff !important;
}

.btn-outline:hover {
    background: #fff;
    color: var(--secondary-color) !important;
}

.btn-lg {
    padding: 16px 40px;
    font-size: 1.1rem;
}

/* LINE Button Official Color */
.btn-line {
    background-color: #06C755;
    /* Official LINE Green */
    color: #fff !important;
    box-shadow: 0 4px 15px rgba(6, 199, 85, 0.3);
    border: none;
}

.btn-line:hover {
    background-color: #05b34c;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(6, 199, 85, 0.4);
}

/* Hero Section */
.hero-full {
    height: 80vh;
    min-height: 600px;
    background: url('https://images.unsplash.com/photo-1556742049-0cfed4f7a07d?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80') no-repeat center center/cover;
    position: relative;
    margin-top: 70px;
}

.hero-overlay {
    background: linear-gradient(135deg, rgba(10, 17, 40, 0.85), rgba(0, 102, 255, 0.85));
    height: 100%;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content-full {
    text-align: center;
    color: #fff;
    padding-top: 40px;
}

.hero-content-full h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    letter-spacing: -1px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-sub {
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* Section General */
.section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 60px;
}

/* Problem Section */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.problem-card {
    background: #fff;
    padding: 50px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
    /* Softer, larger shadow */
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.03);
    position: relative;
    overflow: hidden;
}

.problem-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.1);
}

.problem-image-wrapper {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
}

.problem-image {
    max-height: 100%;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.1));
}

.problem-card p {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--secondary-color);
    line-height: 1.8;
}

.problem-solution-text {
    text-align: center;
    margin-top: 60px;
}

.problem-solution-text p {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 2px;
}

/* Features */
.features {
    background-color: #fff;
}

.feature-row {
    display: flex;
    align-items: center;
    gap: 60px;
    margin-bottom: 80px;
}

.feature-row.reverse {
    flex-direction: row-reverse;
}

.feature-image {
    flex: 1;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.feature-image img {
    border-radius: var(--border-radius);
    transition: transform 0.5s ease;
}

.feature-image:hover img {
    transform: scale(1.03);
}

.feature-content {
    flex: 1;
}

.feature-content h3 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.price-tag {
    display: inline-block;
    background-color: #f0f7ff;
    color: var(--primary-dark);
    padding: 5px 15px;
    border-radius: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.feature-content p {
    font-size: 1.05rem;
    color: #555;
    margin-bottom: 20px;
}

.feature-list li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 10px;
    color: #444;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* Benefit elements */
.benefit-tag {
    display: inline-block;
    background-color: var(--accent-color);
    color: #fff;
    padding: 4px 14px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.75rem;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
}

.benefit-headline {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--secondary-color);
    margin-bottom: 16px;
    line-height: 1.4;
}

.benefit-stat {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 20px;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--secondary-color);
    line-height: 1;
}

.stat-label {
    font-size: 1rem;
    font-weight: 600;
    color: #888;
    letter-spacing: 1px;
}

@media (max-width: 768px) {
    .benefit-headline {
        font-size: 1.3rem;
    }

    .stat-number {
        font-size: 2.2rem;
    }
}

/* Pricing */
.pricing-section {
    background: linear-gradient(135deg, var(--bg-light) 0%, #e6f0fa 100%);
    position: relative;
    overflow: hidden;
}

.pricing-card {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.pricing-header {
    background: var(--secondary-color);
    color: #fff;
    padding: 30px;
    text-align: center;
}

.pricing-header h3 {
    font-size: 2rem;
    margin-bottom: 5px;
}

.pricing-body {
    padding: 50px;
    text-align: center;
}

.price-comparison {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.price-individual {
    text-align: center;
    opacity: 0.6;
}

.strikethrough {
    text-decoration: line-through;
    font-size: 1.5rem;
    display: block;
}

.price-arrow {
    font-size: 2rem;
    color: var(--primary-color);
    animation: bounce 2s infinite;
}

.price-package .value {
    display: block;
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
}

.price-package .unit {
    font-size: 1rem;
    color: #999;
    font-weight: normal;
}

.savings-badge {
    background: var(--accent-color);
    color: #fff;
    display: inline-block;
    padding: 10px 25px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 15px;
    box-shadow: 0 5px 15px rgba(255, 153, 0, 0.3);
}

.savings-text {
    font-size: 1.2rem;
    margin-bottom: 40px;
}

.pricing-features {
    text-align: left;
    max-width: 400px;
    margin: 0 auto 40px;
}

.pricing-features li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
    font-size: 1.1rem;
}

.note {
    font-size: 0.85rem;
    color: #888;
    margin-top: 15px;
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: #fff;
    border-radius: var(--border-radius);
    padding: 30px;
    margin-bottom: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
}

.faq-question {
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.faq-answer {
    color: #666;
    padding-left: 20px;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    text-align: center;
    padding: 80px 0;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

/* Flow - 導入までの流れ */
.flow {
    background-color: var(--bg-light);
}

.flow-list {
    max-width: 800px;
    margin: 0 auto;
}

.flow-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: #fff;
    padding: 30px;
    border-radius: var(--border-radius);
    margin-bottom: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.flow-item.flow-highlight {
    background: #FFF9E6;
    border: 2px solid var(--accent-color);
}

.flow-number {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.flow-number.highlight {
    background: var(--accent-color);
}

.flow-content h3 {
    font-size: 1.25rem;
    color: var(--secondary-color);
    margin-bottom: 8px;
}

.flow-content p {
    color: #666;
    margin: 0;
}

.flow-content .keyword {
    background: var(--accent-color);
    color: #fff;
    padding: 2px 10px;
    border-radius: 4px;
    font-weight: 700;
}

.flow-note {
    color: #E53935 !important;
    font-weight: 500;
    margin-top: 8px !important;
}

.flow-footer {
    text-align: left;
    margin-top: 40px;
    color: #666;
    line-height: 1.8;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.flow-footer .keyword {
    color: var(--accent-color);
    font-weight: 700;
}

/* Footer */
.footer {
    background: var(--secondary-color);
    color: #fff;
    padding: 40px 0;
    font-size: 0.9rem;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-logo {
    font-weight: 700;
    font-size: 1.2rem;
}

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

.footer-links a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.copyright {
    color: #888;
}

/* Animations & Responsive */
@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-10px);
    }

    60% {
        transform: translateY(-5px);
    }
}

/* Hamburger Button */
.hamburger-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.hamburger-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--secondary-color);
    margin: 5px 0;
    transition: var(--transition);
}

.hamburger-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-btn.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    background: #fff;
    border-top: 1px solid #eee;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.mobile-menu.active {
    display: block;
}

.mobile-nav ul {
    padding: 20px;
}

.mobile-nav li {
    margin-bottom: 10px;
}

.mobile-nav a {
    display: block;
    padding: 12px 15px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--secondary-color);
    border-radius: 8px;
}

.mobile-nav a:hover {
    background-color: var(--bg-light);
}

.btn-block {
    display: block;
    text-align: center;
}

/* Legal Pages */
.legal-page {
    max-width: 800px;
    margin: 0 auto;
    padding: 120px 20px 80px;
}

.legal-title {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 40px;
    text-align: center;
}

.legal-content {
    max-width: 800px;
    margin: 0 auto;
}

.legal-content h3 {
    margin-top: 30px;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.legal-content p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 10px;
}

.legal-content ul {
    list-style: disc;
    margin-left: 20px;
    margin-top: 10px;
}

.legal-content li {
    color: #555;
    line-height: 1.8;
    margin-bottom: 5px;
}

.legal-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 30px;
}

.legal-table th,
.legal-table td {
    border: 1px solid #ddd;
    padding: 15px 20px;
    text-align: left;
    color: #555;
    line-height: 1.6;
}

.legal-table th {
    background-color: var(--bg-light);
    font-weight: 600;
    color: var(--secondary-color);
    white-space: nowrap;
    width: 180px;
}

@media (max-width: 768px) {

    .feature-row,
    .feature-row.reverse {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

    .hero-content-full h1 {
        font-size: 2.5rem;
    }

    .hero-sub {
        font-size: 1.2rem;
    }

    .price-comparison {
        flex-direction: column;
        gap: 10px;
    }

    .price-arrow {
        transform: rotate(90deg);
        margin: 10px 0;
    }

    .header-container {
        padding: 0 15px;
    }

    .desktop-nav {
        display: none;
    }

    .hamburger-btn {
        display: block;
    }

    .pricing-body {
        padding: 30px 20px;
    }

    .legal-table th {
        width: 120px;
    }

    .flow-item {
        padding: 20px;
    }

    .flow-number {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .flow-content h3 {
        font-size: 1.1rem;
    }
}