:root {
    --primary-color: #0056b3;
    --primary-dark: #004494;
    --secondary-color: #28a745;
    --accent-color: #ffc107;
    --text-color: #333333;
    --text-light: #666666;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(255, 255, 255, 0.5);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-color);
    background-color: var(--bg-light);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 16px 32px;
    border-radius: 50px;
    font-weight: 700;
    transition: var(--transition);
    cursor: pointer;
    text-align: center;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white) !important;
    box-shadow: 0 4px 15px rgba(0, 86, 179, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 86, 179, 0.4);
}

.btn-white {
    background-color: var(--white);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-white:hover {
    background-color: #f0f8ff;
    transform: translateY(-2px);
}

.btn-lg {
    padding: 18px 48px;
    font-size: 1.1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Header */
.header {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo img {
    height: 48px;
}

.nav ul {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav a {
    font-weight: 700;
    color: var(--text-color);
    transition: var(--transition);
    font-size: 1rem;
}

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

.nav-btn {
    padding: 10px 24px;
    font-size: 0.9rem;
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    border-radius: 2px;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(to bottom, #eef2f8, #ffffff);
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--primary-color), #003366);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.hero-image img {
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    transform: perspective(1000px) rotateY(-5deg);
    transition: var(--transition);
}

.hero-image:hover img {
    transform: perspective(1000px) rotateY(0deg);
}

/* Sections Common */
.section {
    padding: 100px 0;
}

.section-header {
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--primary-dark);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--secondary-color);
    font-weight: 700;
}

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

/* Problems Section */
.problems-section {
    background-color: var(--white);
}

.problems-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.problem-image img {
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.problem-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.problem-item {
    display: flex;
    gap: 20px;
    padding: 24px;
    background-color: var(--bg-light);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.problem-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-sm);
    background-color: #fff;
}

.problem-item .icon {
    font-size: 2rem;
}

.problem-item h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--text-color);
}

/* Solutions Section */
.solutions-section {
    background-color: #f0f8ff;
}

.solutions-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.solution-card {
    background: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    border-left: 5px solid var(--secondary-color);
    transition: var(--transition);
}

.solution-card:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-md);
}

.solution-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--primary-color);
}

.solution-card .highlight {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--secondary-color);
    margin-right: 10px;
}

.solution-image img {
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

/* Features Section */
.features-section {
    background-color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
    border: 1px solid #eee;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 8rem;
    /* margin-bottom: 24px; Removed to let container handle spacing */
}

.feature-image-container .feature-icon {
    margin-bottom: 0;
}

.feature-image-container {
    margin-bottom: 24px;
    height: 200px;
    /* Fixed height for consistency */
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: 12px;
    background-color: #fff;
}

.feature-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    /* Ensure image is visible without cropping */
    transition: var(--transition);
}

.feature-card:hover .feature-image {
    transform: scale(1.05);
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 16px;
    color: var(--primary-dark);
}

/* Steps Section */
.steps-section {
    background-color: var(--bg-light);
}

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

.step-item {
    flex: 1;
    text-align: center;
    min-width: 150px;
}

.step-number {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
    box-shadow: 0 4px 10px rgba(0, 86, 179, 0.3);
}

.step-arrow {
    font-size: 2rem;
    color: #ccc;
    padding-top: 10px;
}

.step-item h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.step-item p {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Pricing Section */
.pricing-section {
    background: linear-gradient(135deg, #003366, #0056b3);
    color: var(--white);
}

.pricing-section .section-title,
.pricing-section .section-subtitle {
    color: var(--white);
}

.pricing-card {
    background: var(--white);
    color: var(--text-color);
    border-radius: 24px;
    max-width: 600px;
    margin: 0 auto;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.pricing-header {
    background-color: #f8f9fa;
    padding: 40px;
    text-align: center;
    border-bottom: 1px solid #eee;
}

.pricing-header h3 {
    font-size: 1.5rem;
    color: var(--primary-dark);
    margin-bottom: 16px;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    color: var(--primary-color);
}

.currency {
    font-size: 1.5rem;
    font-weight: 700;
}

.amount {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1;
}

.unit {
    font-size: 1rem;
    color: var(--text-light);
    margin-left: 8px;
}

.pricing-note {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 10px;
}

.pricing-body {
    padding: 40px;
}

.pricing-list {
    margin-bottom: 30px;
}

.pricing-list li {
    padding: 12px 0;
    border-bottom: 1px solid #eee;
    font-size: 1.1rem;
}

.pricing-list li:last-child {
    border-bottom: none;
}

.badge-campaign {
    background-color: var(--accent-color);
    color: #000;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-left: 8px;
}

.campaign-box {
    background-color: #fff3cd;
    border: 1px solid #ffeeba;
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    margin-bottom: 30px;
}

.campaign-box h4 {
    color: #856404;
    margin-bottom: 8px;
}

/* Footer */
.footer {
    background-color: #333;
    color: #fff;
    padding: 60px 0 20px;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.footer-logo img {
    height: 40px;
    margin-bottom: 10px;
    filter: brightness(0) invert(1);
}

.footer-links ul {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: #ccc;
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: 20px;
    font-size: 0.8rem;
    color: #888;
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards;
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    animation: fadeInLeft 0.8s forwards;
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    animation: fadeInRight 0.8s forwards;
}

.delay-100 {
    animation-delay: 0.1s;
}

.delay-200 {
    animation-delay: 0.2s;
}

.delay-300 {
    animation-delay: 0.3s;
}

.delay-400 {
    animation-delay: 0.4s;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-container,
    .problems-grid,
    .solutions-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-image,
    .problem-image,
    .solution-image {
        order: -1;
    }

    .step-arrow {
        display: none;
    }

    .steps-container {
        flex-direction: column;
        align-items: center;
    }

    .step-item {
        width: 100%;
        max-width: 300px;
        margin-bottom: 30px;
    }
}

@media (max-width: 768px) {
    .header-container {
        height: 60px;
    }

    .nav {
        display: none;
    }

    /* Mobile menu implementation needed if requested, simplified for now */
    .mobile-menu-toggle {
        display: flex;
    }

    .hero {
        padding: 120px 0 60px;
    }

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