:root {
    /* Colors */
    --primary-color: #0f172a;
    /* Deep Navy */
    --secondary-color: #c29b40;
    /* Premium Gold */
    --accent-color: #3b82f6;
    /* Bright Blue for accents */
    --text-color: #334155;
    --text-light: #94a3b8;
    --background-color: #f8fafc;
    --white: #ffffff;
    --success-color: #10b981;
    --error-color: #ef4444;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --gradient-gold: linear-gradient(135deg, #c29b40 0%, #eab308 100%);
    --gradient-orange: linear-gradient(135deg, #ea580c 0%, #fbbf24 100%);
    --gradient-text: linear-gradient(135deg, #0f172a 0%, #3b82f6 100%);

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition-base: all 0.3s ease;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

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

ul {
    list-style: none;
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-color);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-gold);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
}

.gradient-text {
    background: var(--gradient-text);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.gradient-orange {
    background: var(--gradient-orange);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.highlight {
    background: linear-gradient(transparent 50%, rgba(194, 155, 64, 0.3) 50%);
    font-weight: 700;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    gap: 0.5rem;
}

.btn-large {
    padding: 1rem 3rem;
    font-size: 1.1rem;
}

.btn-primary {
    background: var(--gradient-gold);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(194, 155, 64, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(194, 155, 64, 0.5);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
}

.btn-block {
    width: 100%;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
    transition: var(--transition-base);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i {
    color: var(--secondary-color);
}

.nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav a {
    font-weight: 500;
    color: var(--text-color);
    position: relative;
}

.nav a:not(.btn-nav)::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: var(--transition-base);
}

.nav a:not(.btn-nav)::hover::after {
    width: 100%;
}

.btn-nav {
    background: var(--gradient-gold);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(194, 155, 64, 0.4);
}

.btn-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(194, 155, 64, 0.5);
    opacity: 0.9;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    padding: 180px 0 60px;
    background: var(--background-color);
    overflow: hidden;
    min-height: auto;
    display: flex;
    align-items: flex-start;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(194, 155, 64, 0.05), transparent 40%);
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    max-width: 700px;
    padding-left: 3rem;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 0;
}

.hero-book-img {
    width: 100%;
    max-width: 700px;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.2));
}

.hero-badge {
    display: inline-block;
    padding: 0.6rem 1.8rem;
    background: var(--gradient-gold);
    color: var(--white);
    border-radius: 50px;
    font-weight: 700;
    margin-bottom: 2rem;
    box-shadow: 0 4px 15px rgba(194, 155, 64, 0.3);
    letter-spacing: 0.05em;
}

.hero-title {
    font-size: 4rem;
    line-height: 1.15;
    margin-bottom: 2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.hero-title .highlight {
    font-size: 1.3em;
    color: #000;
    /* Black text as requested */
    background: linear-gradient(transparent 60%, rgba(194, 155, 64, 0.4) 60%);
    /* Reverted to Gold marker for better contrast with black text */
    padding: 0 0.2rem;
    vertical-align: middle;
    display: inline-block;
    animation: text-glow-pulse 2s infinite ease-in-out;
}

@keyframes text-glow-pulse {

    0%,
    100% {
        transform: scale(1);
        text-shadow: 0 0 5px rgba(194, 155, 64, 0);
    }

    50% {
        transform: scale(1.1);
        text-shadow: 0 0 15px rgba(194, 155, 64, 0.6);
        color: #0f172a;
        /* Slightly darker black/navy for contrast */
    }
}

.hero-title-main {
    display: block;
    margin-top: 4rem;
    line-height: 1.3;
    width: fit-content;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-color);
    margin-bottom: 3rem;
    line-height: 1.8;
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.stat-item {
    text-align: left;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
}


/* Strength Section */
.strength {
    padding: 100px 0;
    background: var(--white);
}

.strength-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    align-items: center;
    text-align: center;
}

.strength-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.asset-box {
    background: var(--white);
    padding: 1rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    text-align: center;
    width: 550px;
    max-width: 100%;
    transition: var(--transition-base);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.asset-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.asset-icon-img {
    width: 100%;
    height: auto;
    border-radius: 5px;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
}

.asset-box h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

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

.asset-arrow {
    font-size: 2rem;
    color: var(--secondary-color);
}

.strength-text p {
    font-size: 1.1rem;
    line-height: 2;
    margin-bottom: 1.5rem;
}

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

.video-section .section-title {
    color: var(--white);
    margin-bottom: 3rem;
}

.video-wrapper {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    aspect-ratio: 16 / 9;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Works Section */
.works {
    padding: 100px 0;
    background: var(--background-color);
}

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

.work-item {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.work-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.work-image {
    position: relative;
    overflow: hidden;
    height: 200px;
    background-color: #f8fafc !important;
}

.work-image img {
    width: 100%;
    height: 100%;
    object-fit: contain !important;
    transition: transform 0.5s ease;
    padding: 10px !important;
}

.work-item:hover .work-image img {
    transform: scale(1.05);
}

.work-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-gold);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    box-shadow: var(--shadow-sm);
}

.work-info {
    padding: 1.5rem;
}

.work-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.work-info .author {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding-bottom: 1rem;
}

.work-info .result {
    color: var(--primary-color);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.work-info .result i {
    color: var(--secondary-color);
}

/* Testimonials Section */
.testimonials {
    padding: 100px 0;
    background: var(--white);
}

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

.testimonial-card {
    background: var(--background-color);
    padding: 2rem;
    border-radius: 20px;
    transition: var(--transition-base);
    position: relative;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.client-icon {
    width: 60px;
    height: 60px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--secondary-color);
    box-shadow: var(--shadow-sm);
}

.client-info h4 {
    font-size: 1.1rem;
    margin-bottom: 0.2rem;
}

.client-info p {
    font-size: 0.85rem;
    color: var(--text-light);
}

.testimonial-body {
    margin-bottom: 1.5rem;
    font-style: italic;
    color: var(--text-color);
    line-height: 1.8;
    background: var(--white);
    padding: 1.5rem;
    border-radius: 15px;
    position: relative;
}

.testimonial-body::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 30px;
    border-width: 10px 10px 0;
    border-style: solid;
    border-color: var(--white) transparent transparent;
}

.testimonial-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--white);
    padding: 1rem;
    border-radius: 10px;
}

.result-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.result-item .label {
    font-size: 0.7rem;
    color: var(--text-light);
    margin-bottom: 0.2rem;
}

.result-item .value {
    font-weight: 700;
    font-size: 0.9rem;
}

.result-item .value.highlight {
    color: var(--secondary-color);
}

.testimonial-footer i {
    color: var(--text-light);
    font-size: 0.8rem;
}

/* Problems Section */
.problems {
    padding: 100px 0;
    background: var(--background-color);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.problem-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    transition: var(--transition-base);
    border-left: 4px solid var(--text-light);
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-left-color: var(--secondary-color);
}

.problem-icon {
    font-size: 2rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.problem-card:hover .problem-icon {
    color: var(--secondary-color);
}

.problem-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

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

.problems-solution {
    margin-top: 4rem;
    text-align: center;
}

.solution-box {
    display: inline-flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 2rem 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.3);
    text-align: left;
}

.solution-box i {
    font-size: 3rem;
    color: var(--secondary-color);
}

.solution-box h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--white);
}

.highlight-strong {
    color: var(--secondary-color);
    font-weight: 800;
    font-size: 1.2em;
}

/* About Section */
.about {
    padding: 100px 0;
    background: var(--white);
    /* overflow: hidden; Removed to prevent accidental clipping */
}

.about-main {
    max-width: 900px;
    margin: 0 auto;
}

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

.about-icon {
    font-size: 4rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.about-box h3 {
    font-size: 2rem;
    margin-bottom: 3rem;
}

.business-model {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
}

.model-card {
    flex: 1;
    background: var(--background-color);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    border: 2px solid transparent;
}

.model-card:hover {
    border-color: var(--secondary-color);
    transform: translateY(-5px);
}

.model-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.model-header i {
    font-size: 2rem;
    color: var(--primary-color);
}

.model-header h4 {
    font-size: 1.2rem;
}

.model-content {
    text-align: left;
}

.model-give,
.model-get {
    margin-bottom: 1.5rem;
}

.model-give .label,
.model-get .label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.model-give p,
.model-get p {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.model-give i {
    color: var(--error-color);
}

.model-get i {
    color: var(--success-color);
}

.model-arrow {
    font-size: 2rem;
    color: var(--text-light);
}

.about-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.feature-item {
    text-align: center;
    padding: 2rem;
    background: var(--background-color);
    border-radius: 15px;
    transition: var(--transition-base);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.8rem;
    color: var(--secondary-color);
    box-shadow: var(--shadow-sm);
}

.feature-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

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

/* Benefits Section */
.benefits {
    padding: 100px 0;
    background: var(--background-color);
}

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

.tab-btn {
    padding: 1rem 2rem;
    border: none;
    background: var(--white);
    border-radius: 50px;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.tab-btn.active {
    background: var(--primary-color);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

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

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

.benefit-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition-base);
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.benefit-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(194, 155, 64, 0.1) 0%, rgba(234, 179, 8, 0.1) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--secondary-color);
}

.benefit-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.benefit-card p {
    color: var(--text-light);
}

/* Reasons Section */
.reasons {
    padding: 100px 0;
    background: var(--primary-color);
    color: var(--white);
}

.reasons .section-title {
    color: var(--white);
}

.reasons .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

.reasons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.reason-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.reason-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

.reason-number {
    font-size: 3rem;
    font-weight: 900;
    color: rgba(194, 155, 64, 0.5);
    margin-bottom: 1rem;
    line-height: 1;
}

.reason-card h3 {
    color: var(--white);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.reason-card p {
    color: rgba(255, 255, 255, 0.8);
}

/* Flow Section */
.flow {
    padding: 100px 0;
    background: var(--background-color);
}

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

.flow-step {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    align-items: flex-start;
}

.step-number {
    font-size: 3rem;
    font-weight: 900;
    color: rgba(0, 0, 0, 0.1);
    line-height: 1;
    min-width: 80px;
    text-align: center;
}

.step-content {
    flex: 1;
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.step-content::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 20px;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-right: 10px solid var(--white);
}

.step-content h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

/* Price Section (Partner) */
.partner {
    padding: 100px 0;
    background: var(--white);
}

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

.partner-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.partner-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.partner-benefits {
    margin: 2rem 0;
    background: var(--background-color);
    padding: 2rem;
    border-radius: 15px;
}

.partner-benefits h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.partner-benefits ul li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.partner-benefits ul li i {
    color: var(--success-color);
}

.partner-icon-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.partner-icon-item {
    text-align: center;
    padding: 2rem;
    background: var(--background-color);
    border-radius: 15px;
    transition: var(--transition-base);
}

.partner-icon-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.partner-icon-item i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.partner-icon-item span {
    display: block;
    font-weight: 600;
    color: var(--primary-color);
}

/* FAQ Section */
.faq {
    padding: 100px 0;
    background: var(--background-color);
}

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

.faq-item {
    background: var(--white);
    border-radius: 15px;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    transition: var(--transition-base);
}

.faq-question:hover {
    background: rgba(0, 0, 0, 0.02);
}

.faq-question i:first-child {
    color: var(--secondary-color);
    font-size: 1.2rem;
}

.faq-question h3 {
    flex: 1;
    font-size: 1.1rem;
    margin: 0;
}

.faq-question i:last-child {
    color: var(--text-light);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i:last-child {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 1.5rem 1.5rem;
    max-height: 500px;
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    color: var(--white);
    margin-bottom: 1.5rem;
}

.footer-column ul li {
    margin-bottom: 0.8rem;
}

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-base);
}

.footer-column ul li a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* Floating Elements */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--white);
    border: none;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    z-index: 900;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

/* Testimonials Section */
.testimonials {
    padding: 100px 0;
    background: var(--background-color);
}

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

.testimonial-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.client-icon {
    width: 50px;
    height: 50px;
    background: var(--background-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.client-info h4 {
    font-size: 1.1rem;
    margin-bottom: 0.2rem;
}

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

.testimonial-body p {
    font-style: italic;
    color: var(--text-color);
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    background: linear-gradient(transparent 60%, rgba(194, 155, 64, 0.2) 60%);
}

.testimonial-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1.5rem;
    border-top: 1px solid #e2e8f0;
}

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

.result-item .label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: 0.3rem;
}

.result-item .value {
    font-weight: 700;
    color: var(--primary-color);
}

.result-item .value.highlight {
    color: var(--secondary-color);
}

.testimonial-footer i {
    text-align: center;
}

.video-wrapper {
    position: relative;
    width: 100%;
    max-width: 700px;
    aspect-ratio: 16 / 9;
    margin: 0 auto;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    background: #000;
    overflow: hidden;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Works Section */
.works {
    padding: 100px 0;
    background: var(--white);
}

.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.work-item {
    background: var(--background-color);
    border-radius: 15px;
    overflow: hidden;
    transition: var(--transition-base);
    box-shadow: var(--shadow-md);
}

.work-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.work-image {
    position: relative;
    overflow: hidden;
}

.work-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition-base);
}

.work-item:hover .work-image img {
    transform: scale(1.05);
}

.work-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-gold);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    box-shadow: var(--shadow-sm);
}

.work-info {
    padding: 1.5rem;
}

.work-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.work-info .author {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.work-info .result {
    color: var(--primary-color);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.work-info .result i {
    color: var(--success-color);
}

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

/* Strength Section */
.strength {
    padding: 100px 0;
    background: var(--white);
    text-align: center;
}

.strength-content {
    margin-top: 4rem;
}

.strength-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.asset-box {
    background: var(--background-color);
    padding: 2.5rem;
    border-radius: 20px;
    width: 280px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    border: 2px solid transparent;
}

.asset-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.asset-box i {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.asset-icon-img {
    height: 160px;
    width: auto;
    margin-bottom: 1.5rem;
    display: block;
    margin-left: auto;
    margin-right: auto;
    box-shadow: var(--shadow-sm);
    border-radius: 4px;
}

.text-asset {
    border-color: var(--primary-color);
}

.text-asset i {
    color: var(--primary-color);
}

.manga-asset {
    border-color: var(--secondary-color);
}

.manga-asset i {
    color: var(--secondary-color);
}

.asset-box h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

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

.asset-arrow {
    font-size: 2rem;
    color: var(--text-light);
}

.strength-text {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 2;
}

.strength-text .highlight {
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--primary-color);
    background: linear-gradient(transparent 60%, rgba(194, 155, 64, 0.2) 60%);
}

/* Responsive Optimizations */
@media (max-width: 1024px) {
    .container {
        padding: 0 2rem;
    }

    .hero-title {
        font-size: 3rem;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .hero-content {
        gap: 2rem;
    }
}

@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 2rem;
        display: flex;
        flex-direction: column;
    }

    .hero-text {
        margin-bottom: 3rem;
        order: 2;
    }

    .hero-image {
        order: 1;
        margin-bottom: 2rem;
    }

    .hero-book-img {
        width: 70%;
        max-width: 350px;
        margin: 0 auto;
    }

    .hero-cta,
    .hero-stats {
        justify-content: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        display: flex;
        flex-direction: column;
    }

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

    .partner-content {
        grid-template-columns: 1fr;
    }

    .work-item:hover .work-image img {
        transform: scale(1.05);
    }

    .work-badge {
        position: absolute;
        top: 1rem;
        right: 1rem;
        background: var(--gradient-gold);
        color: var(--white);
        padding: 0.5rem 1rem;
        border-radius: 50px;
        font-size: 0.8rem;
        font-weight: 700;
        box-shadow: var(--shadow-sm);
    }

    .work-info {
        padding: 1.5rem;
    }

    .work-info h3 {
        font-size: 1.2rem;
        margin-bottom: 0.5rem;
    }

    .work-info .author {
        color: var(--text-light);
        font-size: 0.9rem;
        margin-bottom: 1rem;
    }

    .work-info .result {
        color: var(--primary-color);
        font-weight: 600;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .work-info .result i {
        color: var(--success-color);
    }

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

    /* Strength Section */
    .strength {
        padding: 100px 0;
        background: var(--white);
        text-align: center;
    }

    .strength-content {
        margin-top: 4rem;
    }

    .strength-visual {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        margin-bottom: 3rem;
        /* flex-wrap: wrap; Removed to prevent vertical stacking */
    }

    .asset-box {
        background: var(--background-color);
        padding: 2.5rem;
        border-radius: 20px;
        /* width: 280px; Removed to allow flexible sizing */
        box-shadow: var(--shadow-md);
        transition: var(--transition-base);
        border: 2px solid transparent;
    }

    .asset-box:hover {
        transform: translateY(-5px);
        box-shadow: var(--shadow-lg);
    }

    .asset-box i {
        font-size: 3rem;
        margin-bottom: 1.5rem;
    }

    .text-asset {
        border-color: var(--primary-color);
    }

    .text-asset i {
        color: var(--primary-color);
    }

    .manga-asset {
        border-color: var(--secondary-color);
    }

    .manga-asset i {
        color: var(--secondary-color);
    }

    .asset-box h3 {
        font-size: 1.5rem;
        margin-bottom: 0.5rem;
    }

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

    .asset-arrow {
        font-size: 2rem;
        color: var(--text-light);
    }

    .strength-text {
        max-width: 800px;
        margin: 0 auto;
        font-size: 1.1rem;
        line-height: 2;
    }

    .strength-text .highlight {
        font-weight: 700;
        font-size: 1.3rem;
        color: var(--primary-color);
        background: linear-gradient(transparent 60%, rgba(194, 155, 64, 0.2) 60%);
    }

    /* Responsive Optimizations */
    @media (max-width: 1024px) {
        .container {
            padding: 0 2rem;
        }

        .hero-title {
            font-size: 3rem;
        }

        .section-title {
            font-size: 2.2rem;
        }

        .hero-content {
            gap: 2rem;
        }
    }

    @media (max-width: 992px) {
        .hero-content {
            grid-template-columns: 1fr;
            text-align: center;
            padding-top: 2rem;
            display: flex;
            flex-direction: column;
        }

            .hero-text {
        margin-bottom: 3rem;
        order: 2;
        padding-left: 0;
        text-align: center;
    }

        .hero-image {
            order: 1;
            margin-bottom: 2rem;
        }

        .hero-book-img {
            width: 70%;
            max-width: 350px;
            margin: 0 auto;
        }

        .hero-cta,
        .hero-stats {
            justify-content: center;
        }

        .footer-content {
            grid-template-columns: 1fr;
            gap: 3rem;
            display: flex;
            flex-direction: column;
        }

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

        .partner-content {
            grid-template-columns: 1fr;
            display: flex;
            flex-direction: column;
        }
    }

    @media (max-width: 768px) {
        .container {
            padding: 0 20px;
        }

        /* Navigation */
        .nav {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            width: 100%;
            height: calc(100vh - 60px);
            background: rgba(255, 255, 255, 0.98);
            flex-direction: column;
            justify-content: flex-start;
            padding: 3rem 2rem;
            box-shadow: none;
            overflow-y: auto;
            z-index: 999;
        }

        .nav.active {
            display: flex;
        }

        .nav a {
            font-size: 1.1rem;
            margin: 0.8rem 0;
            width: 100%;
            text-align: center;
            padding: 1rem;
            border-bottom: 1px solid #f1f5f9;
        }

        .mobile-menu-btn {
            display: block;
            font-size: 1.5rem;
        }

        .header {
            padding: 0.8rem 0;
        }

        /* Hero Section - Robust Optimization */
        .hero {
            padding: 100px 0 60px;
            min-height: auto;
        }

        .hero-title {
            font-size: clamp(1.4rem, 6vw, 2rem);
            /* Responsive sizing */
            line-height: 1.4;
            margin-bottom: 1.5rem;
            white-space: normal;
            word-wrap: break-word;
        }

                    text-align: center;
        
        .hero-title span {
            display: inline-block;
            /* Ensure spans behave nicely */
        }

        .hero-subtitle {
            font-size: 0.95rem;
            text-align: left;
            line-height: 1.8;
            margin-bottom: 2rem;
        }

        .hero-badge {
            font-size: 0.8rem;
            padding: 0.4rem 1rem;
            margin-bottom: 1.5rem;
        }

                    display: block;
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        
        .hero-stats {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            padding-top: 2rem;
            width: 100%;
        }

        .stat-item {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 1.5rem;
            background: var(--white);
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
        }

        .stat-number {
            font-size: 1.8rem;
            margin-bottom: 0;
        }

        /* General Layout & Typography */
        .section-header {
            margin-bottom: 2.5rem;
            padding: 0 10px;
        }

        .section-title {
            font-size: 1.5rem;
            margin-bottom: 0.8rem;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 0.85rem;
            line-height: 1.6;
            padding: 0 1rem;
        }

        h3 {
            font-size: 1.25rem;
        }

        p {
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* Cards - Full Width Stack */
        .works-grid,
        .testimonials-grid,
        .problems-grid,
        .reasons-grid,
        .benefits-grid,
        .about-features {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .problem-card,
        .benefit-card,
        .reason-card,
        .testimonial-card,
        .work-item,
        .feature-item {
            padding: 1.5rem;
            width: 100%;
        }

        /* Strength Section - Force Vertical removed from here */

        /* Flow Section */
        .flow-step {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            text-align: center;
            padding: 1.5rem;
            background: var(--white);
            border-radius: 15px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 1rem;
        }

        .step-number {
            margin: 0 auto;
            font-size: 2rem;
            width: 60px;
            height: 60px;
            line-height: 60px;
        }

        /* Footer */
        .footer {
            padding: 3rem 0 1.5rem;
            text-align: center;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

        .footer-column ul li a {
            display: block;
            padding: 0.5rem 0;
        }

        /* Components */
        .btn {
            width: 100%;
            justify-content: center;
            min-height: 54px;
            font-size: 1rem;
        }

        .scroll-to-top {
            bottom: 1.5rem;
            right: 1rem;
            width: 45px;
            height: 45px;
        }

        /* Safety */
        img {
            max-width: 100%;
            height: auto;
        }

        /* Prevent awkward breaks */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6,
        p,
        span,
        a,
        li {
            word-break: normal;
            overflow-wrap: break-word;
        }
    }

    /* Mobile specific adjustments */
    @media (max-width: 768px) {
        .strength-visual {
            flex-direction: column !important;
            gap: 1.5rem;
        }

            .business-model {
        flex-direction: column;
        align-items: center;
    }

    .model-arrow {
        transform: rotate(90deg);
        margin: 1rem 0;
    }
        .strength-content {
            grid-template-columns: 1fr !important;
        }

        .asset-box {
            width: 100%;
        }

        .asset-arrow {
            transform: rotate(90deg);
            margin: 1rem 0;
        }
    }