/* styles.css */
:root { 
    --primary-color: #35BADE;
    --primary-dark: #039AC4;
    --secondary-color: #0288D1;
    --accent-yellow: #ECF508;
    --accent-yellow-dark: #D4DD00;
    --danger-color: #D32F2F;
    --text-dark: #1a1a1a;
    --text-light: #6b7280;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --border-color: #e5e7eb;
    --font-primary: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html { 
    scroll-behavior: smooth; 
    font-size: 16px; 
    -webkit-font-smoothing: antialiased; 
    -moz-osx-font-smoothing: grayscale; 
}

body { 
    font-family: var(--font-primary); 
    font-weight: 400; 
    line-height: 1.7; 
    color: var(--text-dark); 
    overflow-x: hidden; 
    background-color: var(--white); 
    letter-spacing: 0.02em; 
}

h1, h2, h3, h4, h5, h6 { 
    font-family: var(--font-primary); 
    font-weight: 700; 
    line-height: 1.4; 
    letter-spacing: -0.02em; 
}

p { 
    font-weight: 400; 
    letter-spacing: 0.01em; 
}

/* Header Styles */
header { 
    position: fixed; 
    top: 0; 
    width: 100%; 
    background: rgba(255, 255, 255, 0.95); 
    backdrop-filter: blur(10px); 
    box-shadow: 0 2px 20px rgba(53, 186, 222, 0.1); 
    z-index: 1000; 
    transition: all 0.3s ease; 
}

nav { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    padding: 1rem 5%; 
    max-width: 1200px; 
    margin: 0 auto; 
    transition: padding 0.3s ease; 
    height: 60px; 
}

header.scrolled nav { 
    padding: 0.5rem 5%; 
}

.logo { 
    display: flex; 
    align-items: center; 
    font-size: 1.5rem; 
    font-weight: 800; 
    color: var(--primary-color); 
    text-decoration: none; 
    gap: 15px; 
}

.logo-subtitle { 
    font-size: 0.875rem; 
    font-weight: 500; 
    color: var(--primary-dark); 
    letter-spacing: 0.05em; 
    white-space: nowrap; 
}

.logo img { 
    margin-right: 10px; 
    height: 100px; 
    width: auto; 
}

.nav-links { 
    display: flex; 
    gap: 2.5rem; 
    align-items: center; 
}

.nav-links a { 
    color: var(--text-dark); 
    text-decoration: none; 
    font-weight: 500; 
    transition: color 0.3s; 
    font-size: 0.95rem; 
    letter-spacing: 0.01em; 
}

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

/* CTA Button Styles */
.cta-button { 
    background: linear-gradient(135deg, var(--accent-yellow) 0%, var(--accent-yellow-dark) 100%); 
    color: var(--text-dark); 
    padding: 0.75rem 1.75rem; 
    border: none; 
    border-radius: 50px; 
    text-decoration: none; 
    font-weight: 600; 
    transition: all 0.3s ease; 
    box-shadow: 0 4px 15px rgba(236, 245, 8, 0.3); 
    display: inline-block; 
    font-size: 0.95rem; 
    letter-spacing: 0.02em; 
    cursor: pointer;
}

/* Header CTA button adjustments */
.nav-links .cta-button {
    padding: 0.5rem 1.5rem;
    font-size: 0.95rem;
}

.cta-button:hover { 
    transform: translateY(-3px); 
    box-shadow: 0 6px 20px rgba(236, 245, 8, 0.4); 
}

.hero-cta {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.cta-subtitle {
    font-size: 0.75rem;
    font-weight: 400;
    opacity: 0.8;
}

.final-cta {
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
}

/* Hamburger Menu */
.hamburger { 
    display: none; 
    cursor: pointer; 
    z-index: 1001; 
}

.hamburger .bar { 
    display: block; 
    width: 25px; 
    height: 3px; 
    margin: 5px auto; 
    transition: all 0.3s ease-in-out; 
    background-color: var(--text-dark); 
}

/* Hero Section */
.hero { 
    padding: 120px 5% 80px; 
    min-height: 100vh; 
    display: flex; 
    align-items: center; 
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    color: var(--white);
    position: relative; 
    overflow: hidden; 
}

.hero-content { 
    max-width: 1200px; 
    margin: 0 auto; 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 4rem; 
    align-items: center; 
    position: relative; 
    z-index: 1; 
}

.hero-text { 
    display: flex; 
    flex-direction: column; 
    align-items: flex-start; 
    text-align: left; 
}

.hero-main-title { 
    font-size: clamp(3rem, 7vw, 4.5rem); 
    font-weight: 900; 
    line-height: 1.1; 
    margin-bottom: 1.5rem; 
    letter-spacing: -0.04em; 
    color: var(--white);
}

.hero-description {
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    font-weight: 400;
    line-height: 1.8;
    margin-bottom: 2rem;
    opacity: 0.95;
    color: var(--white);
}

.hero-buttons { 
    margin-top: 2.5rem; 
    display: flex; 
    gap: 1rem; 
    flex-wrap: wrap; 
}

.hero-buttons .cta-button { 
    background: var(--white); 
    color: var(--text-dark); 
}

.hero-buttons .cta-button:hover { 
    background: #f0f0f0; 
}

.hero-image video { 
    width: 100%; 
    height: auto; 
    border-radius: 20px; 
    box-shadow: 0 20px 50px rgba(0,0,0,0.2); 
}

/* Section Styles */
.section { 
    padding: 80px 5%; 
    background-color: var(--white); 
}

.section.bg-light { 
    background-color: var(--bg-light); 
}

.section-header { 
    text-align: center; 
    max-width: 800px; 
    margin: 0 auto 4rem; 
}

.section-header h2 { 
    font-size: clamp(1.75rem, 3.5vw, 2.25rem); 
    font-weight: 800; 
    margin-bottom: 1rem; 
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color)); 
    -webkit-background-clip: text; 
    -webkit-text-fill-color: transparent; 
    background-clip: text; 
    display: inline-block; 
    letter-spacing: -0.02em; 
}

.section-header p { 
    font-size: 1.0625rem; 
    color: var(--text-light); 
    max-width: 600px; 
    margin: 0 auto; 
    font-weight: 400; 
    line-height: 1.7; 
}

/* Problem Section */
.problem-story {
    max-width: 1000px;
    margin: 0 auto 4rem;
}

.timeline {
    position: relative;
    padding-left: 50px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -35px;
    top: 10px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--danger-color);
    border: 3px solid var(--white);
    box-shadow: 0 0 0 4px var(--danger-color);
}

.timeline-time {
    font-weight: 600;
    color: var(--danger-color);
    margin-bottom: 0.5rem;
}

.timeline-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: var(--text-light);
}

.problem-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.problem-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(0,0,0,0.08);
}

.problem-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.problem-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.problem-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Transformation Section */
.transformation-tabs {
    max-width: 1200px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.tab-button {
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--border-color);
    background: var(--white);
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-button:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.tab-button.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

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

.comparison-item {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.05);
}

.comparison-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.comparison-item .tag {
    font-size: 1rem;
    font-weight: 700;
    padding: 0.25rem 1rem;
    border-radius: 20px;
    color: var(--white);
}

.comparison-item.before .tag {
    background-color: var(--danger-color);
}

.comparison-item.after .tag {
    background-color: var(--primary-dark);
}

.comparison-item p {
    color: var(--text-light);
    line-height: 1.8;
}

/* Features Section */
.feature-block {
    max-width: 1200px;
    margin: 0 auto 4rem;
}

.feature-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.feature-block.reverse .feature-content {
    direction: rtl;
}

.feature-block.reverse .feature-text {
    direction: ltr;
}

.feature-number {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary-color);
    opacity: 0.2;
    margin-bottom: 1rem;
}

.feature-text h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-description {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 0.75rem 0;
    padding-left: 2rem;
    position: relative;
    line-height: 1.6;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.25rem;
}

.feature-list li strong {
    display: inline;
    margin-right: 0.5rem;
    color: var(--text-dark);
}

.feature-image img,
.feature-image video {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.1);
}

.additional-features {
    background: var(--white);
    padding: 3rem;
    border-radius: 20px;
    margin-top: 4rem;
}

.additional-features h3 {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 3rem;
}

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

.feature-card {
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.feature-card h4 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Coming Soon Section */
.coming-soon-section { 
    background: linear-gradient(135deg, var(--text-dark) 0%, #2c3e50 100%); 
    color: var(--white); 
    border-radius: 20px; 
    padding: 60px 5%; 
    margin: 0 auto; 
    max-width: 1200px; 
}

.coming-soon-section .section-header h2 { 
    color: var(--accent-yellow); 
    background: none; 
    -webkit-text-fill-color: unset; 
}

.coming-soon-section .section-header p { 
    color: rgba(255, 255, 255, 0.8); 
}

.coming-soon-badge { 
    display: inline-block; 
    background-color: var(--accent-yellow); 
    color: var(--text-dark); 
    padding: 0.5rem 1.25rem; 
    border-radius: 50px; 
    font-weight: 700; 
    margin-bottom: 1.5rem; 
    letter-spacing: 0.05em; 
}

.concept-visual { 
    background: rgba(255, 255, 255, 0.05); 
    border-radius: 15px; 
    padding: 2rem; 
    margin: 2rem auto; 
    border: 1px solid rgba(255, 255, 255, 0.1); 
    text-align: center; 
}

.concept-visual img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
}

.concept-visual p { 
    color: rgba(255, 255, 255, 0.9); 
}

.beta-form { 
    display: flex; 
    gap: 1rem; 
    justify-content: center; 
    margin-top: 2rem; 
    flex-wrap: wrap; 
}

.beta-form input { 
    padding: 0.75rem 1rem; 
    border-radius: 50px; 
    border: 1px solid var(--border-color); 
    background: var(--white); 
    min-width: 250px; 
}

.beta-form button { 
    background: var(--accent-yellow); 
    color: var(--text-dark); 
}

/* Use Cases Section */
.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* styles.css に追記 */

/* --- Use Cases Section (Revised Horizontal Layout) --- */
.use-cases-section-revised {
    padding-top: 100px;
    padding-bottom: 100px;
}

.use-cases-container-revised {
    max-width: 1000px; /* コンテナの最大幅を調整 */
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2.5rem; /* 各アイテム間の余白 */
}

.use-case-item-revised {
    display: flex;
    align-items: flex-start; /* アイコンとコンテンツを上揃えに */
    gap: 2rem;
    background: var(--white);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.07);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.use-case-item-revised:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}

.use-case-icon-revised {
    font-size: 2.5rem;
    background-color: var(--bg-light);
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
}

.use-case-content-revised {
    flex-grow: 1;
}

.use-case-content-revised h3 {
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.use-case-content-revised ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.use-case-content-revised li {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-dark);
    padding-left: 1.75rem;
    position: relative;
    margin-bottom: 1rem;
}

.use-case-content-revised li:last-child {
    margin-bottom: 0;
}

.use-case-content-revised li::before {
    content: '✓';
    color: var(--primary-color);
    font-weight: 900;
    font-size: 1.1rem;
    position: absolute;
    left: 0;
    top: 3px;
}

.use-case-content-revised li strong {
    font-weight: 600;
    color: var(--primary-dark);
}

/* --- Responsive Adjustments for Use Cases --- */
@media (max-width: 768px) {
    .use-case-item-revised {
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        align-items: center; /* 中央揃えに */
        text-align: center;
    }

    .use-case-content-revised h3 {
        font-size: 1.2rem;
    }

    .use-case-content-revised li {
        text-align: left; /* 箇条書きは左揃えを維持 */
        font-size: 0.95rem;
    }
}

/* Security Section */
.security-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.security-item {
    text-align: center;
    padding: 2rem;
}

.security-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.security-item h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.security-item p {
    color: var(--text-light);
    line-height: 1.6;
}

/* styles.css */

/* --- Pricing Section (Strategic Revision) --- */
.pricing-section .section-header p {
    max-width: 700px;
}

.pricing-container-revised {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: center;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 15px 50px rgba(0,0,0,0.08);
    overflow: hidden;
}

.pricing-card-main {
    padding: 3rem;
    text-align: center;
}

.pricing-card-main .plan-name {
    font-size: 1.75rem;
}

.pricing-card-main .plan-price {
    font-size: 3.5rem;
}

.pricing-card-main .cta-button {
    margin-top: 2rem;
    width: 100%;
}

/* フリープランの機能リストのアイコンを調整 */
.pricing-card-main .plan-features li {
    padding-left: 2rem;
    position: relative;
    text-align: left;
}
.pricing-card-main .plan-features li::before {
    content: ''; /* デフォルトのチェックマークは消す */
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

/* コア機能用のチェックマークアイコン */
.feature-item-core::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2335BADE'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E");
}

/* 制限用の注意アイコン */
.feature-item-limit::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23ff9800'%3E%3Cpath d='M1 21h22L12 2 1 21zm12-3h-2v-2h2v2zm0-4h-2v-4h2v4z'/%3E%3C/svg%3E");
}

.pricing-upgrade-info {
    padding: 3rem;
    background-color: var(--bg-light);
    height: 100%;
}

.pricing-upgrade-info > p {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.upgrade-features h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.upgrade-features ul {
    list-style: none;
    margin-bottom: 2rem;
}

.upgrade-features li {
    padding: 0.5rem 0;
    padding-left: 1.75rem;
    position: relative;
}

.upgrade-features li::before {
    content: '✓';
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.plan-details-link {
    display: inline-block;
    margin-top: 1rem;
    font-weight: 600;
    color: var(--primary-dark);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: border-color 0.3s;
}

.plan-details-link:hover {
    border-color: var(--primary-dark);
}

/* Responsive for New Pricing Section */
@media (max-width: 992px) {
    .pricing-container-revised {
        grid-template-columns: 1fr;
    }
    .pricing-upgrade-info {
        text-align: center;
    }
    .upgrade-features ul {
        text-align: left;
        display: inline-block;
    }
}

.recommended-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: var(--white);
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.plan-name { 
    font-size: 1.5rem; 
    font-weight: 700; 
    margin-bottom: 1rem; 
    color: var(--text-dark); 
}

.plan-price { 
    font-size: 2.5rem; 
    font-weight: 800; 
    color: var(--primary-dark); 
    margin-bottom: 0.5rem; 
    font-family: var(--font-secondary); 
}

.plan-price span { 
    font-size: 1rem; 
    font-weight: 400; 
    color: var(--text-light); 
    font-family: var(--font-primary); 
}

.plan-description { 
    color: var(--text-light); 
    min-height: 40px; 
    margin-bottom: 1.5rem; 
    font-size: 0.875rem; 
    font-weight: 400; 
}

.plan-features { 
    list-style: none; 
    margin: 2rem 0; 
    text-align: left; 
}

.plan-features li { 
    padding: 0.75rem 0; 
    border-bottom: 1px solid #f0f0f0; 
    display: flex; 
    align-items: center; 
    gap: 0.75rem; 
    font-size: 0.9375rem; 
    font-weight: 400; 
    color: var(--text-dark); 
}

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

.plan-features li::before { 
    content: '✓'; 
    color: var(--primary-color); 
    font-weight: bold; 
}

.demo-button {
    background: var(--text-dark);
    color: var(--white);
    padding: 0.75rem 1.75rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    width: 100%;
    text-align: center;
}

.demo-button:hover {
    background: #2c3e50;
    transform: translateY(-2px);
}

/* Getting Started Section */
.steps-guide {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.step-item {
    flex: 1;
    text-align: center;
    min-width: 200px;
}

.step-number {
    width: 60px;
    height: 60px;
    background: 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 1rem;
}

.step-item h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.step-item p {
    color: var(--text-light);
    line-height: 1.6;
}

.step-arrow {
    font-size: 2rem;
    color: var(--primary-color);
}

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

.faq-item {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.faq-item h3 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.faq-item p {
    color: var(--text-light);
    line-height: 1.6;
}

/* CTA Section */
.cta-section { 
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color)); 
    color: var(--white); 
    text-align: center; 
}

.cta-section h2 { 
    font-size: 2.25rem; 
    margin-bottom: 1rem; 
    color: var(--white);
    }

.cta-section p { 
    font-size: 1.125rem; 
    margin-bottom: 2rem; 
    opacity: 0.95; 
    max-width: 600px; 
    margin-left: auto; 
    margin-right: auto; 
    font-weight: 400; 
    line-height: 1.7; 
}

.cta-section .cta-button { 
    background: var(--accent-yellow); 
    color: var(--text-dark); 
    font-size: 1rem; 
    padding: 1rem 2rem; 
    font-weight: 600; 
}

.cta-section .cta-button:hover { 
    background: var(--accent-yellow-dark); 
    transform: translateY(-2px); 
    box-shadow: 0 4px 15px rgba(0,0,0,0.1); 
}

/* Footer */
footer { 
    background: var(--text-dark); 
    color: var(--white); 
    padding: 60px 5% 40px; 
    text-align: center; 
}

.footer-content { 
    max-width: 1200px; 
    margin: 0 auto; 
    font-size: 0.875rem; 
    font-weight: 400; 
}

.footer-info {
    margin-bottom: 2rem;
}

.footer-info a {
    color: var(--primary-color);
    text-decoration: none;
}

.footer-info a:hover {
    text-decoration: underline;
}

.footer-links { 
    display: flex; 
    justify-content: center; 
    gap: 2rem; 
    margin-bottom: 1rem; 
    flex-wrap: wrap; 
}

.footer-links a { 
    color: var(--white); 
    text-decoration: none; 
    opacity: 0.8; 
    transition: opacity 0.3s; 
}

.footer-links a:hover { 
    opacity: 1; 
}

.copyright {
    margin-top: 2rem;
    opacity: 0.7;
}

/* Coming Soon Section - 追加部分 */
.report-subtitle {
    font-size: 0.75em;
    line-height: 1.4;
    display: inline;
}

.no-break {
    display: inline-block;
}

/* 画面幅によって改行位置を制御 */
@media (min-width: 1400px) {
    .report-subtitle {
        white-space: nowrap;
    }
}

@media (max-width: 1399px) and (min-width: 769px) {
    .report-subtitle::after {
        content: "\A";
        white-space: pre;
    }
    
    .no-break {
        display: inline;
    }
}

@media (max-width: 768px) {
    .coming-soon-section h2 {
        font-size: 1.5rem;
    }
    
    .report-subtitle {
        font-size: 1em;
        display: block;
        margin-top: 0.5rem;
    }
    
    .no-break {
        display: inline;
    }
}
.demo-button {
    background: var(--text-dark);
    color: var(--white);
    padding: 0.75rem 1.75rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    width: 100%;
    text-align: center;
}

.demo-button:hover {
    background: #2c3e50;
    transform: translateY(-2px);
}

/* Opening Animation */
#opening-animation { 
    position: fixed; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100vh; 
    background-color: var(--white); 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    z-index: 9999; 
    opacity: 1; 
    transition: opacity 0.8s ease-out; 
}

#opening-concept { 
    font-size: clamp(2rem, 5vw, 3.5rem); 
    font-weight: 900; 
    color: var(--text-dark); 
    opacity: 0; 
    transform: scale(0.95); 
    animation: fadeInConcept 1.2s ease-out 0.5s forwards; 
}

@keyframes fadeInConcept { 
    to { 
        opacity: 1; 
        transform: scale(1); 
    } 
}

#opening-animation.hidden { 
    opacity: 0; 
    pointer-events: none; 
}

body.loading > header, 
body.loading > main, 
body.loading > footer { 
    opacity: 0; 
}

body.loaded > header, 
body.loaded > main, 
body.loaded > footer { 
    opacity: 1; 
    transition: opacity 1s ease-in; 
}

/* Fade in animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .hero-content {
        gap: 3rem;
    }
    
    .feature-content {
        gap: 3rem;
    }
}

@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text {
        align-items: center;
    }
    
    .hero-image {
        max-width: 600px;
        margin: 0 auto;
    }
    
    .transformation-tabs .tab-buttons {
        justify-content: center;
    }
    
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-content {
        grid-template-columns: 1fr;
    }
    
    .feature-block.reverse .feature-content {
        direction: ltr;
    }
    
    .feature-text {
        order: 2;
    }
    
    .feature-image {
        order: 1;
    }
    
    .steps-guide {
        flex-direction: column;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 768px) {
    html { 
        font-size: 15px; 
    }
    
    .section {
        padding: 60px 5%;
    }
    
    .logo-subtitle { 
        display: none; 
    }
    
    .nav-links { 
        position: fixed; 
        right: -100%; 
        top: 0; 
        height: 100vh; 
        width: 70%; 
        max-width: 300px; 
        background-color: var(--white); 
        flex-direction: column; 
        justify-content: center; 
        gap: 2rem; 
        transition: right 0.4s ease-in-out; 
        box-shadow: -5px 0 15px rgba(0,0,0,0.1); 
        padding: 2rem;
    }
    
    .nav-links.active { 
        right: 0; 
    }
    
    .nav-links a { 
        font-size: 1.125rem; 
    }
    
    .hamburger { 
        display: block; 
    }
    
    .hamburger.active .bar:nth-child(2) { 
        opacity: 0; 
    }
    
    .hamburger.active .bar:nth-child(1) { 
        transform: translateY(8px) rotate(45deg); 
    }
    
    .hamburger.active .bar:nth-child(3) { 
        transform: translateY(-8px) rotate(-45deg); 
    }
    
    .hero { 
        padding: 100px 5% 60px; 
        min-height: auto;
    }
    
    .hero-buttons { 
        justify-content: center; 
        width: 100%;
    }
    
    .hero-cta {
        width: 100%;
        max-width: 300px;
    }
    
    .timeline {
        padding-left: 30px;
    }
    
    .timeline-item::before {
        left: -25px;
    }
    
    .problem-cards {
        grid-template-columns: 1fr;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
    
    .security-features {
        grid-template-columns: 1fr;
    }
    
    .beta-form {
        flex-direction: column;
        align-items: center;
    }
    
    .beta-form input {
        width: 100%;
        max-width: 300px;
    }
    
    .beta-form button {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .hero-main-title {
        font-size: 2.5rem;
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }
    
    .cta-button {
        padding: 0.625rem 1.5rem;
        font-size: 0.875rem;
    }
    
    .logo img {
        height: 80px;
    }
}

/* Login Button */
.login-button {
    color: var(--primary-dark);
    border: 2px solid var(--primary-dark);
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    font-size: 0.95rem;
}

.login-button:hover {
    background: var(--primary-dark);
    color: var(--white);
}

@media (max-width: 768px) {
    .nav-links {
        position: static;
        flex-direction: row;
        height: auto;
        width: auto;
        background-color: transparent;
        box-shadow: none;
        padding: 0;
        gap: 0.75rem;
    }
    
    .nav-links a {
        font-size: 0.875rem;
    }
    
    /* モバイル時はサブタイトルを非表示 */
    .logo-subtitle {
        display: none;
    }
    
    /* モバイル時のボタンサイズ調整 */
    .nav-links .login-button,
    .nav-links .cta-button {
        padding: 0.4rem 1rem;
        font-size: 0.875rem;
    }
    
    /* ハンバーガーメニュー関連を削除 */
    .hamburger {
        display: none;
    }
}

@media (max-width: 480px) {
    /* さらに小さい画面での調整 */
    .nav-links {
        gap: 0.5rem;
    }
    
    .nav-links a {
        font-size: 0.8rem;
    }
    
    .nav-links .login-button,
    .nav-links .cta-button {
        padding: 0.35rem 0.75rem;
        font-size: 0.8rem;
    }
    
    /* ロゴのサイズ調整 */
    .logo img {
        height: 60px;
    }
}

/* Story Section Styles */
.story-section {
    background-color: var(--bg-light);
    padding-top: 100px;
    padding-bottom: 100px;
}

.story-container {
    max-width: 750px;
    margin: 0 auto;
    text-align: left;
    font-size: 1.05rem;
    line-height: 2;
    letter-spacing: 0.04em;
    color: var(--text-dark);
}

.story-block {
    margin-bottom: 3.5rem;
}

.story-block h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 2rem;
    line-height: 1.6;
    text-align: left;
}

.story-block h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.story-block p {
    margin-bottom: 1.5rem;
}

.story-block p strong {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.story-highlight {
    margin: 4rem auto;
    text-align: center;
    padding: 3rem 1.5rem;
    background-color: var(--white);
    border-radius: 15px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.05);
}

.story-highlight h3 {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.8;
    color: var(--text-dark);
}

.negative-keyword {
    color: var(--danger-color);
    font-weight: 800;
    font-size: 1.1em;
}

.story-turn {
    text-align: center;
    margin-top: 4rem;
}

.story-turn p {
    color: var(--text-light);
    margin-bottom: 2rem;
}

.story-turn h2 {
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1.6;
    color: var(--primary-dark);
}

/* Feature Section Title Adjustment */
.liberation-title {
    color: var(--primary-dark);
    display: block;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

/* Hero CTA button adjustment */
.hero-buttons .hero-cta {
    background: var(--white);
    color: var(--text-dark);
}

.hero-buttons .hero-cta:hover {
    background: #f0f0f0;
}

/* Anchor for smooth scroll */
#story-start {
    display: block;
    position: relative;
    top: -60px; /* header height */
    visibility: hidden;
}

.hero-image img {
    width: 100%;
    max-width: 500px;  /* 最大幅を制限 */
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
}

.plan-details-link {
    display: inline-block;
    margin-top: 1rem;
    font-weight: 600;
    color: var(--primary-dark);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: border-color 0.3s;
}

.plan-details-link:hover {
    border-color: var(--primary-dark);
}

/* リード文用のスタイルを追加 */
.pricing-lead-text {
    max-width: 1000px;
    margin: 0 auto 2.5rem;
    text-align: left;
    font-size: 1rem;
    color: var(--text-light);
}

@media (max-width: 992px) {
    .pricing-lead-text {
        text-align: center;
        padding: 0 1rem;
    }
}