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

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
    background-image: 
        radial-gradient(circle at 15% 85%, rgba(120, 119, 198, 0.03) 0%, transparent 40%),
        radial-gradient(circle at 85% 15%, rgba(255, 107, 53, 0.03) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(255, 107, 53, 0.01) 0%, transparent 60%),
        linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.95) 50%, transparent 100%),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 300 300"><defs><pattern id="grid" width="25" height="25" patternUnits="userSpaceOnUse"><path d="M 25 0 L 0 0 0 25" fill="none" stroke="%23e0e0e0" stroke-width="0.5" opacity="0.6"/><path d="M 12.5 0 L 12.5 25 M 0 12.5 L 25 12.5" fill="none" stroke="%23f0f0f0" stroke-width="0.3" opacity="0.4"/><circle cx="12.5" cy="12.5" r="0.8" fill="%23e8e8e8" opacity="0.3"/></pattern><pattern id="circuit" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="2.5" fill="%23FF6B35" opacity="0.15"/><circle cx="80" cy="80" r="2.5" fill="%237877C6" opacity="0.15"/><circle cx="20" cy="80" r="1.8" fill="%23FF6B35" opacity="0.12"/><circle cx="80" cy="20" r="1.8" fill="%237877C6" opacity="0.12"/><circle cx="50" cy="50" r="1.2" fill="%23e0e0e0" opacity="0.15"/><path d="M20,20 L40,20 L40,40 L60,40 L60,60 L80,60 L80,80" fill="none" stroke="%23e0e0e0" stroke-width="0.8" opacity="0.25"/><path d="M80,20 L60,20 L60,40 L40,40 L40,60 L20,60 L20,80" fill="none" stroke="%23e8e8e8" stroke-width="0.6" opacity="0.2"/><rect x="35" y="35" width="8" height="4" rx="1.5" fill="%23FF6B35" opacity="0.1"/><rect x="57" y="57" width="8" height="4" rx="1.5" fill="%237877C6" opacity="0.1"/><rect x="15" y="75" width="6" height="3" rx="1" fill="%23e0e0e0" opacity="0.08"/><rect x="75" y="15" width="6" height="3" rx="1" fill="%23e0e0e0" opacity="0.08"/></pattern><pattern id="nodes" width="150" height="150" patternUnits="userSpaceOnUse"><circle cx="40" cy="40" r="3" fill="none" stroke="%23FF6B35" stroke-width="0.8" opacity="0.12"/><circle cx="110" cy="110" r="3" fill="none" stroke="%237877C6" stroke-width="0.8" opacity="0.12"/><circle cx="40" cy="110" r="2.2" fill="none" stroke="%23e0e0e0" stroke-width="0.6" opacity="0.15"/><circle cx="110" cy="40" r="2.2" fill="none" stroke="%23e0e0e0" stroke-width="0.6" opacity="0.15"/><circle cx="75" cy="75" r="1.5" fill="none" stroke="%23f0f0f0" stroke-width="0.4" opacity="0.12"/><path d="M40,40 Q75,25 110,40 Q95,75 110,110 Q75,125 40,110 Q55,75 40,40" fill="none" stroke="%23f0f0f0" stroke-width="0.4" opacity="0.1"/><path d="M40,40 L75,75 L110,40 M110,110 L75,75 L40,110" fill="none" stroke="%23e8e8e8" stroke-width="0.3" opacity="0.08"/></pattern></defs><rect width="300" height="300" fill="url(%23grid)"/><rect width="300" height="300" fill="url(%23circuit)"/><rect width="300" height="300" fill="url(%23nodes)"/></svg>');
    background-size: 200px 200px, 150px 150px, 100% 100%, 120px 120px;
    background-position: 0 0, 50px 50px, 0 0, 60px 60px;
    background-attachment: fixed;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
}

.btn-primary {
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    color: white;
    box-shadow: 0 3px 12px rgba(255, 107, 53, 0.25);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 18px rgba(255, 107, 53, 0.35);
}

.btn-outline {
    background: white;
    color: #FF6B35;
    border: 2px solid #FF6B35;
}

.btn-outline:hover {
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    color: white;
    transform: translateY(-1px);
}

.btn-large {
    padding: 1.2rem 2.5rem;
    font-size: 1rem;
}

/* Header */
.header {
    background: white;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid #f0f0f0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo .logo-image {
    height: 40px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 400;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: #FF6B35;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 50%;
    background: #FF6B35;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    gap: 1rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    background-image: url('https://go.industrial-x.jp/l/1049242/2025-10-28/2csgg/1049242/1761708017oZowqnIA/AdobeStock_506183372.jpeg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 140px 0 60px;
    position: relative;
    overflow: hidden;
    min-height: 450px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.25);
    z-index: 1;
}

.hero-container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.hero-content {
    display: flex;
    flex-direction: row;
    align-items: center;
    text-align: left;
    min-height: 300px;
    justify-content: space-between;
    gap: 3rem;
}

.hero-text {
    max-width: 800px;
    width: 100%;
}

.hero-badge {
    display: inline-block;
    background: white;
    color: #333;
    padding: 0.3rem 0.5rem;
    border-radius: 0;
    font-size: 2.8rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    border: none;
    text-shadow: none;
    line-height: 1.2;
    letter-spacing: -0.02em;
    text-align: left;
}



.hero-main-title {
    display: inline-block;
    background: #FF6B35;
    font-size: 3.64rem;
    color: white;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    font-weight: 900;
    letter-spacing: -0.02em;
    text-shadow: none;
    text-align: left;
    padding: 0.3rem 0.5rem;
    border-radius: 0;
}

.hero-sub-text-container {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.hero-hashtags {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-bottom: 3rem;
}

.hashtag-row {
    display: flex;
    justify-content: flex-start;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.hashtag-item {
    display: inline-block;
    background: rgba(255, 255, 255, 0.8);
    color: #000000;
    font-size: 0.72rem;
    font-weight: 500;
    padding: 0.5rem 0.8rem;
    border-radius: 15px;
    line-height: 1.4;
    text-shadow: none;
    backdrop-filter: blur(5px);
    transition: all 0.3s ease;
}

.hashtag-item:hover {
    background: rgba(255, 255, 255, 0.8);
}

.hero-sub-text {
    display: block;
    background: transparent;
    font-size: 1.21rem;
    color: white;
    line-height: 1.6;
    font-weight: 400;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
    text-align: left;
    padding: 0;
    border-radius: 0;
    width: auto;
}

.highlight-term {
    background: white;
    color: #FF6B35;
    padding: 0.3rem 0.8rem;
    margin: 0 0.3rem;
    border-radius: 20px;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    display: inline-block;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: flex-start;
    flex-wrap: wrap;
}



.hero-image {
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
    height: 100%;
    position: relative;
}

.hero-image-container {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 420px;
    height: 100%;
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
}

.hero-main-image {
    width: 100%;
    height: auto;
    max-height: 540px;
    object-fit: cover;
    object-position: bottom;
    display: block;
    position: absolute;
    bottom: 0;
    right: 0;
}

.hero-circle-badge {
    position: absolute;
    bottom: 20px;
    right: -40px;
    width: 160px;
    height: 160px;
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.3);
    z-index: 5;
}

.badge-text {
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    text-align: center;
    line-height: 1.3;
}

.mockup-devices {
    position: relative;
    width: 100%;
    height: 100%;
}

.device-tablet {
    position: absolute;
    top: 20px;
    right: 0;
    width: 280px;
    height: 200px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    padding: 15px;
    transform: rotate(5deg);
    z-index: 2;
}

.device-phone {
    position: absolute;
    bottom: 20px;
    left: 20px;
    width: 180px;
    height: 320px;
    background: white;
    border-radius: 25px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    padding: 20px 15px;
    transform: rotate(-8deg);
    z-index: 3;
}

.device-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 15px;
    padding: 15px;
    overflow: hidden;
}

.icon-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    height: 100%;
    align-items: center;
}

.app-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    margin: 0 auto;
}

.app-icon.orange { background: linear-gradient(135deg, #FF6B35, #FF8A65); }
.app-icon.blue { background: linear-gradient(135deg, #4285f4, #34a853); }
.app-icon.green { background: linear-gradient(135deg, #34a853, #0f9d58); }
.app-icon.purple { background: linear-gradient(135deg, #9c27b0, #673ab7); }

.app-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding-top: 20px;
}

.app-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    font-size: 0.9rem;
    color: #333;
    font-weight: 500;
}

.app-item i {
    color: #FF6B35;
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

/* Problem Cards Screen Content */
.alert-icon {
    font-size: 2rem;
    color: #FF6B35;
    margin-bottom: 15px;
}

.progress-bar {
    width: 80%;
    height: 8px;
    background: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    border-radius: 4px;
}

.chart-container {
    display: flex;
    align-items: end;
    gap: 8px;
    margin-bottom: 15px;
}

.chart-bar {
    width: 20px;
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    border-radius: 2px;
    min-height: 10px;
}

.update-badge {
    background: #00C896;
    color: white;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.7rem;
    font-weight: 600;
}

.interface-mockup {
    display: flex;
    width: 100%;
    height: 100%;
    gap: 10px;
}

.interface-sidebar {
    width: 30%;
    background: #e0e0e0;
    border-radius: 8px;
}

.interface-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.interface-card {
    background: #f0f0f0;
    border-radius: 6px;
    height: 40%;
}

/* Feature Cards Screen Content */
.feature-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.display-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    width: 80px;
}

.grid-item {
    width: 35px;
    height: 35px;
    background: #e0e0e0;
    border-radius: 8px;
}

.grid-item.active {
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
}

.feature-indicator {
    display: flex;
    gap: 6px;
}

.indicator-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #e0e0e0;
}

.indicator-dot.active {
    background: #FF6B35;
}

.instructor-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.instructor-avatar {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.rating-stars {
    display: flex;
    gap: 3px;
    color: #FFD700;
    font-size: 1rem;
}

.support-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    width: 100%;
}

.chat-bubbles {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
}

.chat-bubble {
    height: 20px;
    border-radius: 15px;
    max-width: 70%;
}

.chat-bubble.user {
    background: #e3f2fd;
    align-self: flex-end;
}

.chat-bubble.support {
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    align-self: flex-start;
}

.support-badge {
    background: #4CAF50;
    color: white;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.7rem;
    font-weight: 600;
}

/* Section Styles */
.section-title {
    text-align: left;
    margin-bottom: 1rem;
    font-size: 3rem;
    color: #333;
    position: relative;
    font-weight: 900;
    letter-spacing: -0.03em;
    text-transform: uppercase;
}

.section-title::after {
    content: '';
    display: block;
    width: 100px;
    height: 4px;
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    margin: 2rem 0 0 0;
    border-radius: 50px;
}

.section-description {
    text-align: left;
    color: #666;
    font-size: 1rem;
    line-height: 1.6;
    margin: 0 0 4rem 0;
    font-weight: 400;
}

/* AI-Driven Company Section */
.ai-driven-company {
    padding: 80px 0;
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    position: relative;
}

.ai-driven-content {
    display: flex;
    align-items: flex-start;
    gap: 0;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.ai-driven-image {
    flex: 0 0 400px;
    max-width: 400px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.speaker-image {
    width: 100%;
    height: auto;
    max-width: 400px;
    max-height: 500px;
    object-fit: cover;
    border-radius: 0;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.ai-driven-text {
    flex: 1;
    color: white;
    padding-left: 3rem;
}

.ai-driven-title {
    display: inline-block;
    background: white;
    color: #333;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    margin-left: -4rem;
    line-height: 1.3;
    padding: 0.3rem 0.5rem;
    padding-left: 1.2rem;
    border-radius: 0;
    position: relative;
    z-index: 2;
}

.ai-driven-description {
    font-size: 1.2rem;
    line-height: 1.8;
    margin: 0 0 1.5rem 0;
    color: white;
    font-weight: 400;
}

.ai-driven-author {
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
    color: white;
    font-weight: 500;
    text-align: right;
}

/* Responsive for AI-Driven Section */
@media (max-width: 768px) {
    .ai-driven-company {
        padding: 60px 0;
    }
    
    .ai-driven-content {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
    
    .ai-driven-text {
        padding-left: 0;
    }
    
    .ai-driven-image {
        max-width: 300px;
    }
    
    .ai-driven-title {
        font-size: 2rem;
        margin-bottom: 1.5rem;
        margin-left: 0;
        padding: 0.2rem 0.4rem;
    }
    
    .ai-driven-description {
        font-size: 1.1rem;
        text-align: center;
    }
    
    .ai-driven-author {
        font-size: 0.9rem;
        text-align: center;
    }
}

/* Problems Section */
.problems {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    position: relative;
}

.problems::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200"><defs><pattern id="problemGrid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="%23e8e8e8" stroke-width="0.6" opacity="0.4"/><path d="M 20 0 L 20 40 M 0 20 L 40 20" fill="none" stroke="%23f0f0f0" stroke-width="0.4" opacity="0.3"/><circle cx="20" cy="20" r="1.2" fill="%23FF6B35" opacity="0.08"/></pattern><pattern id="problemCircuit" width="80" height="80" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="2.5" fill="%23FF6B35" opacity="0.12"/><circle cx="60" cy="60" r="2.5" fill="%23FF6B35" opacity="0.12"/><circle cx="20" cy="60" r="1.8" fill="%23e0e0e0" opacity="0.1"/><circle cx="60" cy="20" r="1.8" fill="%23e0e0e0" opacity="0.1"/><path d="M20,20 L35,20 L35,35 L45,35 L45,45 L60,45 L60,60" fill="none" stroke="%23e0e0e0" stroke-width="0.8" opacity="0.2"/><path d="M60,20 L45,20 L45,35 L35,35 L35,45 L20,45 L20,60" fill="none" stroke="%23e8e8e8" stroke-width="0.6" opacity="0.15"/><rect x="30" y="30" width="6" height="3" rx="1" fill="%23FF6B35" opacity="0.08"/><rect x="44" y="44" width="4" height="4" rx="1" fill="%23e0e0e0" opacity="0.06"/></pattern></defs><rect width="200" height="200" fill="url(%23problemGrid)"/><rect width="200" height="200" fill="url(%23problemCircuit)"/><circle cx="50" cy="50" r="3" fill="%23FF6B35" opacity="0.08"/><circle cx="150" cy="150" r="3" fill="%23FF6B35" opacity="0.08"/><circle cx="50" cy="150" r="2.5" fill="%23e0e0e0" opacity="0.1"/><circle cx="150" cy="50" r="2.5" fill="%23e0e0e0" opacity="0.1"/><path d="M50,50 Q100,25 150,50 Q125,100 150,150 Q100,175 50,150 Q75,100 50,50" fill="none" stroke="%23e8e8e8" stroke-width="0.5" opacity="0.12"/></svg>');
    background-size: 100px 100px;
    opacity: 0.3;
}

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

/* Simple Problem Cards */
.problem-card-simple {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    border: 1px solid #e9ecef;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 120px;
    text-align: center;
}

.problem-card-simple h3 {
    color: #FF6B35;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.problem-card-simple p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

.feature-card-new {
    background: white;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    overflow: hidden;
    border: 1px solid #f0f0f0;
}

.feature-card-new:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.card-mockup {
    padding: 20px;
    background: #f8f9fa;
}

.feature-image-container {
    padding: 20px;
    background: #f8f9fa;
    display: flex;
    justify-content: center;
    align-items: center;
}

.feature-image {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    aspect-ratio: 16/9;
    object-fit: cover;
}

.mockup-screen {
    background: white;
    border-radius: 20px;
    padding: 15px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    height: 200px;
    position: relative;
}

.screen-header {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 15px;
}

.status-indicators {
    display: flex;
    gap: 5px;
}

.status-indicators span {
    width: 12px;
    height: 8px;
    background: #ddd;
    border-radius: 2px;
}

.signal { background: #4CAF50; }
.wifi { background: #2196F3; }
.battery { background: #FF9800; }

.screen-content {
    height: calc(100% - 30px);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.card-content {
    padding: 20px;
    text-align: left;
}

.card-content h3 {
    color: #333;
    margin-bottom: 8px;
    font-size: 1.2rem;
    font-weight: 600;
    text-align: left;
}

.card-content p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
    text-align: left;
}

.problem-card h3 {
    color: #333;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.problem-card ul {
    list-style: none;
    padding: 0;
}

.problem-card li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
    color: #666;
}

.problem-card li::before {
    content: '•';
    color: #FF6B35;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Features Section */
.features {
    padding: 120px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 250 250"><defs><pattern id="featurePattern" width="70" height="70" patternUnits="userSpaceOnUse"><circle cx="18" cy="18" r="2" fill="%237877C6" opacity="0.1"/><circle cx="52" cy="52" r="2" fill="%23FF6B35" opacity="0.1"/><circle cx="18" cy="52" r="1.5" fill="%23e0e0e0" opacity="0.12"/><circle cx="52" cy="18" r="1.5" fill="%23e0e0e0" opacity="0.12"/><circle cx="35" cy="35" r="1.2" fill="%23f0f0f0" opacity="0.08"/><path d="M18,18 L35,18 L35,35 L52,35 L52,52" fill="none" stroke="%23e0e0e0" stroke-width="0.6" opacity="0.15"/><path d="M52,18 L35,18 L35,35 L18,35 L18,52" fill="none" stroke="%23e8e8e8" stroke-width="0.4" opacity="0.12"/><rect x="30" y="30" width="5" height="5" rx="1" fill="%237877C6" opacity="0.06"/><rect x="45" y="45" width="4" height="3" rx="1" fill="%23FF6B35" opacity="0.06"/><path d="M18,18 Q35,8 52,18 Q42,35 52,52 Q35,62 18,52 Q28,35 18,18" fill="none" stroke="%23f0f0f0" stroke-width="0.3" opacity="0.08"/></pattern><pattern id="featureNodes" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="3" fill="none" stroke="%237877C6" stroke-width="0.8" opacity="0.12"/><circle cx="75" cy="75" r="3" fill="none" stroke="%23FF6B35" stroke-width="0.8" opacity="0.12"/><circle cx="25" cy="75" r="2.5" fill="none" stroke="%23e0e0e0" stroke-width="0.6" opacity="0.1"/><circle cx="75" cy="25" r="2.5" fill="none" stroke="%23e0e0e0" stroke-width="0.6" opacity="0.1"/><circle cx="50" cy="50" r="1.8" fill="none" stroke="%23f0f0f0" stroke-width="0.4" opacity="0.08"/><path d="M25,25 L50,50 L75,25 M75,75 L50,50 L25,75" fill="none" stroke="%23e8e8e8" stroke-width="0.4" opacity="0.1"/></pattern></defs><rect width="250" height="250" fill="url(%23featurePattern)"/><rect width="250" height="250" fill="url(%23featureNodes)"/></svg>'), radial-gradient(circle at 85% 15%, rgba(255, 107, 53, 0.05) 0%, transparent 70%);
    background-size: 120px 120px, 100% 100%, 100% 100%;
}

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





/* Course Lineup Section */
.course-lineup {
    padding: 100px 0 50px;
    background: #f8f9fa;
    position: relative;
}

.course-lineup::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 180 180"><defs><pattern id="lineupGrid" width="36" height="36" patternUnits="userSpaceOnUse"><path d="M 36 0 L 0 0 0 36" fill="none" stroke="%23e0e0e0" stroke-width="0.4" opacity="0.5"/><path d="M 18 0 L 18 36 M 0 18 L 36 18" fill="none" stroke="%23f0f0f0" stroke-width="0.3" opacity="0.4"/><circle cx="18" cy="18" r="1" fill="%23e8e8e8" opacity="0.4"/></pattern><pattern id="lineupFlow" width="90" height="90" patternUnits="userSpaceOnUse"><circle cx="22" cy="22" r="2.2" fill="%23FF6B35" opacity="0.1"/><circle cx="68" cy="68" r="2.2" fill="%237877C6" opacity="0.1"/><circle cx="22" cy="68" r="1.8" fill="%23e0e0e0" opacity="0.12"/><circle cx="68" cy="22" r="1.8" fill="%23e0e0e0" opacity="0.12"/><circle cx="45" cy="45" r="1.5" fill="%23f0f0f0" opacity="0.1"/><path d="M22,22 L38,22 L38,38 L52,38 L52,52 L68,52 L68,68" fill="none" stroke="%23e0e0e0" stroke-width="0.6" opacity="0.18"/><path d="M68,22 L52,22 L52,38 L38,38 L38,52 L22,52 L22,68" fill="none" stroke="%23e8e8e8" stroke-width="0.4" opacity="0.15"/><rect x="38" y="38" width="7" height="4" rx="1.5" fill="%23FF6B35" opacity="0.08"/><rect x="49" y="49" width="5" height="5" rx="1" fill="%237877C6" opacity="0.08"/><path d="M22,22 L45,45 L68,22 M68,68 L45,45 L22,68" fill="none" stroke="%23e8e8e8" stroke-width="0.3" opacity="0.1"/></pattern></defs><rect width="180" height="180" fill="url(%23lineupGrid)"/><rect width="180" height="180" fill="url(%23lineupFlow)"/></svg>');
    background-size: 90px 90px;
    opacity: 0.7;
    z-index: 0;
}

.lineup-diagram {
    margin: 3rem 0;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #f0f0f0;
    position: relative;
    z-index: 1;
}

.lineup-image-container {
    text-align: center;
    margin: 2rem 0;
}

.lineup-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* 5段階ビジネスフロー */
.business-flow {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr auto 1fr;
    gap: 0.5rem;
    align-items: start;
    padding: 2rem 0;
    position: relative;
}

.flow-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 160px;
    min-height: 280px;
    background: #f8f9fa;
    padding: 1rem 0.5rem;
    border-radius: 15px;
    border: 1px solid #e0e0e0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    position: relative;
}

.stage-box {
    background: transparent;
    color: #333;
    padding: 1rem 0.8rem;
    text-align: center;
    transition: transform 0.3s ease;
    position: relative;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    width: 100%;
}

.stage-box:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.stage-number {
    position: absolute;
    top: -8px;
    left: -8px;
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1rem;
    box-shadow: 0 3px 8px rgba(255, 107, 53, 0.4);
}

.stage-box h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0.5rem 0;
    line-height: 1.2;
    color: #FF6B35;
}

.stage-description {
    font-size: 0.75rem;
    color: #666;
    line-height: 1.3;
    margin: 0;
    padding: 0 0.3rem;
    text-align: center;
}

.stage-courses {
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* ⑤の段階のstage-coursesに追加のマージンを設定 */
.flow-stage:last-of-type .stage-courses {
    margin-bottom: 3rem;
}

.course-item {
    padding: 0.7rem 0.8rem;
    border-radius: 20px;
    text-align: center;
    font-size: 0.75rem;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    line-height: 1.2;
}

.course-item.orange {
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    color: white;
    border: none;
}

.course-item.orange:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.course-item.blue {
    background: linear-gradient(135deg, #4A90E2, #6BB6FF);
    color: white;
    border: none;
}

.course-item.blue:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

.course-item.spanning {
    position: relative;
    z-index: 2;
}

.lineup-note {
    text-align: left;
    margin-top: 1rem;
}

.lineup-note p {
    font-size: 0.85rem;
    color: #666;
    margin: 0;
    font-style: italic;
}

.flow-arrow {
    color: #333;
    font-size: 1.5rem;
    align-self: center;
    margin-top: 60px;
}

/* スパニング要素 */
.spanning-course {
    position: absolute;
    top: 240px;
    left: 66%;
    width: 32%;
    z-index: 10 !important;
    display: block !important;
    visibility: visible !important;
}

.spanning-workshop {
    background: linear-gradient(135deg, #4A90E2, #6BB6FF) !important;
    color: white !important;
    padding: 0.7rem 0.8rem;
    border-radius: 20px;
    text-align: center;
    font-size: 0.75rem;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
    line-height: 1.2;
    transition: all 0.3s ease;
    width: 100%;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.spanning-workshop:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(74, 144, 226, 0.4);
}

/* レスポンシブデザイン */
@media (max-width: 1200px) {
    .business-flow {
        gap: 0.3rem;
    }
    
    .flow-stage {
        min-width: 140px;
        padding: 0.8rem 0.4rem;
    }
    
    .stage-box h4 {
        font-size: 0.85rem;
    }
    
    .stage-description {
        font-size: 0.7rem;
    }
    
    .course-item {
        font-size: 0.7rem;
        padding: 0.6rem 0.7rem;
    }
}

@media (max-width: 992px) {
    .business-flow {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        justify-items: center;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
        margin: 0;
        grid-column: 1;
    }
    
    .flow-stage {
        width: 100%;
        max-width: 280px;
        grid-column: 1;
        padding: 1rem 0.8rem;
        min-height: auto;
    }
    
    .spanning-course {
        display: none;
    }
    
    /* モバイルでは④と⑤にAIアプリプロトタイピングワークショップを表示 */
    .flow-stage:nth-child(7) .stage-courses::after {
        content: "AIアプリプロトタイピングワークショップ";
        display: block;
        background: linear-gradient(135deg, #4A90E2, #6BB6FF);
        color: white;
        padding: 0.7rem 0.8rem;
        border-radius: 20px;
        text-align: center;
        font-size: 0.7rem;
        font-weight: 500;
        margin-top: 0.5rem;
    }
}

@media (max-width: 768px) {
    .lineup-diagram {
        padding: 1.5rem;
        margin: 2rem 0;
    }
    
    .flow-stage {
        padding: 0.8rem 0.6rem;
    }
    
    .stage-box {
        padding: 0.8rem 0.6rem;
        min-height: 100px;
    }
    
    .stage-box h4 {
        font-size: 0.8rem;
    }
    
    .stage-description {
        font-size: 0.65rem;
        padding: 0 0.2rem;
    }
    
    .stage-number {
        width: 22px;
        height: 22px;
        font-size: 0.75rem;
        top: -6px;
        left: -6px;
    }
    
    .course-item {
        font-size: 0.65rem;
        padding: 0.5rem 0.6rem;
    }
    
    /* Hero image responsive */
    .hero-circle-badge {
        width: 120px;
        height: 120px;
        bottom: -80px;
        right: -30px;
    }
    
    .badge-text {
        font-size: 0.85rem;
    }
    
    /* Feature images responsive */
    .feature-image-container {
        padding: 15px;
    }
}

.subsection-title {
    text-align: left;
    font-size: 1.6rem;
    color: #333;
    margin: 1.5rem 0 0.8rem 0;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.subsection-description {
    text-align: left;
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

/* Course Detail Section */
.course-detail {
    padding: 10px 0 50px;
    background: #f8f9fa;
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 1rem;
}

.course-card-accordion {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
}

.course-card-accordion:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.course-header {
    padding: 1.5rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    transition: background 0.3s ease;
    border-bottom: 1px solid #f0f0f0;
}

.course-header:hover {
    background: #fafafa;
}

.course-accordion-title {
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.2rem;
    margin: 0;
    flex: 1;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.course-toggle {
    color: #FF6B35;
    font-size: 1.2rem;
    transition: transform 0.3s ease;
    margin-left: 1rem;
}

.course-card-accordion.active .course-toggle {
    transform: rotate(180deg);
}

.course-details {
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease;
    background: #fafafa;
}

.course-card-accordion.active .course-details {
    max-height: 2000px;
    padding: 2rem;
}

/* Static Course Card Styles */
.course-card-static {
    background: white;
    border-radius: 15px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

.course-card-static:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
}

.course-card-wide {
    grid-column: 1 / 2;
}

.course-static-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #f0f0f0;
}

.course-content-visible {
    padding: 2rem;
    background: #fafafa;
    border-radius: 0 0 15px 15px;
}

.info-grid {
    display: block;
    margin-bottom: 2rem;
}

.info-item {
    display: flex;
    padding: 1rem 0;
    border-bottom: 1px solid #e9ecef;
}

.info-item:last-child {
    border-bottom: none;
}

.info-item strong {
    display: block;
    color: #333;
    font-weight: 600;
    width: 150px;
    flex-shrink: 0;
    margin-right: 2rem;
    margin-bottom: 0;
}

.info-item p {
    color: #666;
    margin: 0;
    line-height: 1.6;
    flex: 1;
}

.price {
    font-size: 1.5rem;
    font-weight: bold;
    color: #FF6B35 !important;
}

.price-note {
    font-size: 0.85rem;
    color: #666;
    margin-top: 0.5rem;
    line-height: 1.4;
}

.course-content h4 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.content-list {
    list-style: none;
    padding: 0;
}

.content-list li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
    color: #666;
}

.content-list li::before {
    content: '✓';
    color: #FF6B35;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Other Courses Section */
.other-courses {
    padding: 0 0 100px;
    background: white;
}

.other-courses .course-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 1rem;
}

.other-courses .course-card-accordion {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 0.3s ease;
}

.other-courses .course-card-accordion:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
}

/* E-learning Styles - Removed */

.pricing {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 600;
    font-size: 1.2rem;
}

.price-original {
    color: #999;
    text-decoration: line-through;
    font-size: 1rem;
}

.arrow {
    color: #FF6B35;
    font-size: 1.5rem;
    font-weight: bold;
}

.price-current {
    color: #FF6B35;
    font-size: 1.5rem;
}

.curriculum-map {
    margin: 2rem 0;
}

.curriculum-title {
    color: #333;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #FF6B35;
}

.chapter-section {
    margin-bottom: 2rem;
}

.chapter-title {
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    color: white;
    padding: 0.8rem 1rem;
    margin-bottom: 0.5rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
}

.curriculum-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.curriculum-table tr {
    border-bottom: 1px solid #e9ecef;
}

.curriculum-table tr:last-child {
    border-bottom: none;
}

.curriculum-table td {
    padding: 1rem;
    vertical-align: middle;
}

.lesson-number {
    background: #f8f9fa;
    text-align: center;
    font-weight: 600;
    color: #FF6B35;
    width: 50px;
    font-size: 1.1rem;
}

.lesson-title {
    color: #333;
    font-weight: 500;
    line-height: 1.4;
}

/* E-learning benefits styles - Removed */

/* Simple Curriculum Table */
.curriculum-simple {
    margin: 2rem 0;
}

.curriculum-simple-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.curriculum-simple-table th {
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    color: white;
    padding: 1rem;
    font-weight: 600;
    text-align: left;
}

.curriculum-simple-table td {
    padding: 1rem;
    border-bottom: 1px solid #e9ecef;
    vertical-align: top;
}

.curriculum-simple-table tr:last-child td {
    border-bottom: none;
}

.curriculum-simple-table small {
    color: #666;
    font-size: 0.8rem;
    display: block;
    margin-top: 0.2rem;
}

/* E-learning two column layout styles - Removed */

/* New E-learning Styles */
.special-announcement {
    text-align: center;
    margin-bottom: 2rem;
}

.highlight-banner {
    background: linear-gradient(135deg, #FF6B35, #F7931E);
    color: white;
    padding: 12px 24px;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: bold;
    display: inline-block;
    margin: 0;
}

.target-audience {
    background: #FF6B35;
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: bold;
    display: inline-block;
    margin: 10px 0;
}

.program-description {
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 15px 0;
    color: #333;
}

.chapter-section {
    margin-bottom: 1.5rem;
}

.chapter-title {
    background: #FF6B35;
    color: white;
    padding: 8px 12px;
    border-radius: 5px;
    font-size: 0.9rem;
    font-weight: bold;
    margin-bottom: 8px;
}

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

.website-link {
    display: inline-block;
    padding: 12px 20px;
    background: #FF6B35;
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.website-link:hover {
    background: #E55A2E;
    color: white;
    text-decoration: none;
}

/* Arrow Separator */
.arrow-separator {
    text-align: center;
    margin: 2rem 0;
}

.arrow-separator i {
    font-size: 2rem;
    color: #999;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* Case Studies Section */
.case-studies {
    padding: 4rem 0;
    background: #f8f9fa;
}

.case-studies-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.case-study-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.case-study-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.case-study-header {
    margin-bottom: 1.5rem;
}

.industry-tag {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    border: 2px solid;
}

.industry-tag.manufacturing {
    background: white;
    color: #FF6B35;
    border-color: #FF6B35;
}

.industry-tag.real-estate {
    background: white;
    color: #FF6B35;
    border-color: #FF6B35;
}

.case-study-title {
    font-size: 1.3rem;
    font-weight: bold;
    color: #333;
    margin: 0;
}

.case-overview {
    margin-bottom: 1.5rem;
    line-height: 1.6;
    color: #555;
}

.case-overview p {
    margin-bottom: 0.8rem;
}

.case-single-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.case-section {
    margin-bottom: 1.5rem;
}

.case-section-title {
    background: #FF6B35;
    color: white;
    padding: 8px 12px;
    border-radius: 5px;
    font-size: 0.9rem;
    font-weight: bold;
    margin-bottom: 0.8rem;
}

.case-section-title.effect {
    background: #FF6B35;
}

.case-list {
    padding-left: 0;
    list-style: none;
}

.case-list li {
    padding: 0.3rem 0;
    padding-left: 1rem;
    position: relative;
    font-size: 0.9rem;
    line-height: 1.5;
}

.case-list li:before {
    content: '•';
    color: #FF6B35;
    position: absolute;
    left: 0;
    font-weight: bold;
}

.case-content-list {
    font-size: 0.9rem;
}

.content-item {
    margin-bottom: 0.8rem;
    line-height: 1.5;
}

.content-item .number {
    display: inline-block;
    width: 20px;
    height: 20px;
    background: #FF6B35;
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 20px;
    font-size: 0.8rem;
    font-weight: bold;
    margin-right: 0.5rem;
}

.sub-list {
    margin-top: 0.5rem;
    padding-left: 1rem;
    list-style: none;
}

.sub-list li {
    padding: 0.2rem 0;
    position: relative;
    font-size: 0.85rem;
}

.sub-list li:before {
    content: '・';
    color: #666;
    position: absolute;
    left: -1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .case-studies-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .case-single-column {
        gap: 1rem;
    }
    
    .case-study-card {
        padding: 1.5rem;
    }
}

.category-section {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 1.5rem;
}

.category-title {
    color: #FF6B35;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #FF6B35;
}

.curriculum-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Curriculum List Styles */
.curriculum-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.curriculum-list li {
    padding: 0.8rem 1rem;
    margin-bottom: 0.5rem;
    background: white;
    border-radius: 8px;
    border-left: 4px solid #FF6B35;
    color: #333;
    font-weight: 500;
    font-size: 0.95rem;
    line-height: 1.4;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    padding-left: 2.5rem;
}

.curriculum-list li:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-left-color: #FF8A65;
}

.curriculum-list li::before {
    content: '✓';
    color: #FF6B35;
    font-weight: bold;
    font-size: 1.1rem;
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

/* Problems Summary Styles */
.problems-summary {
    margin-top: 3rem;
    text-align: center;
}

.summary-text {
    color: #FF6B35;
    font-size: 1.1rem;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
}

.highlight-bold {
    font-weight: 700;
    color: #FF6B35;
}

/* Orange Box Message */
.orange-box-message {
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    color: white;
    padding: 2rem;
    border-radius: 15px;
    max-width: 800px;
    margin: 0 auto;
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.3);
}

.orange-box-message p {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 500;
    line-height: 1.6;
}

.orange-box-message .highlight-text {
    font-size: 1.56rem; /* 1.2rem × 1.3 = 1.56rem */
    font-weight: 700;
    display: block;
    margin-top: 0.5rem;
}

.highlight-large {
    font-weight: 700;
    color: #FF6B35;
    font-size: 1.5em;
    display: inline-block;
}

.chapter-item {
    background: white;
    padding: 1rem;
    border-radius: 6px;
    border-left: 3px solid #FF6B35;
}

.chapter-item h5 {
    color: #333;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.chapter-item p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}

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

.price-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    font-weight: 600;
    font-size: 1.2rem;
}

.price-display .price-original {
    color: #999;
    text-decoration: line-through;
    font-size: 1rem;
}

.price-display .arrow {
    color: #FF6B35;
    font-size: 1.5rem;
    font-weight: bold;
}

.price-display .price-current {
    color: #FF6B35;
    font-size: 1.5rem;
}

.time-info p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.8rem;
    color: #333;
    font-weight: 500;
}

.time-info i {
    color: #FF6B35;
    font-size: 1rem;
    width: 20px;
}

.benefits-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.benefits-list li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.8rem;
    color: #666;
    line-height: 1.5;
}

.benefits-list li i {
    color: #FF6B35;
    font-size: 1rem;
    width: 20px;
}

.elearning-content {
    padding: 1rem;
}

.elearning-content p {
    margin-bottom: 1rem;
    color: #666;
    line-height: 1.6;
}

.subsidy-label {
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.elearning-section {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 2px solid #e9ecef;
}

/* Video Section */
.video-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #fff3f0 100%);
}

.video-container {
    text-align: center;
    margin-top: 3rem;
}

.video-placeholder {
    background: #e9ecef;
    padding: 6rem 2rem;
    border-radius: 12px;
    border: 2px dashed #ccc;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
}

.video-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: #FF6B35;
}

.video-placeholder p {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.video-placeholder small {
    color: #999;
}

/* Videos Grid Layout */
.videos-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.video-item {
    background: white;
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.video-wrapper {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 8px;
}

/* FAQ Section */
.faq {
    padding: 100px 0;
    background: white;
}

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

.faq-item-static {
    background: white;
    margin: 1rem 0;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border: 1px solid #f0f0f0;
    border-left: 3px solid #FF6B35;
}

.faq-question-static {
    padding: 1.5rem 2rem 0.5rem;
}

.faq-question-static h4 {
    margin: 0;
    color: #333;
    font-size: 1.1rem;
    font-weight: 600;
}

.faq-answer-static {
    padding: 0 2rem 1.5rem;
}

.faq-answer-static p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* Contact Form Section */
.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #fff3f0 100%);
}

/* Tab Form Styles */
.form-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.tab-button {
    flex: 1;
    padding: 1rem 2rem;
    border: none;
    background: #f8f9fa;
    color: #666;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.tab-button:hover {
    background: #e9ecef;
    color: #333;
}

.tab-button.active {
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    color: white;
}

.tab-button i {
    font-size: 1.1rem;
}

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

.tab-content {
    display: none;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f0f0f0;
    min-height: 400px;
}

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

.form-placeholder {
    padding: 3rem;
    text-align: center;
}

.placeholder-content {
    max-width: 500px;
    margin: 0 auto;
}

.placeholder-content i {
    font-size: 3rem;
    color: #FF6B35;
    margin-bottom: 1.5rem;
}

.placeholder-content h3 {
    color: #333;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.placeholder-content p {
    color: #666;
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.placeholder-code {
    background: #f8f9fa;
    border: 2px dashed #ddd;
    border-radius: 8px;
    padding: 2rem;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    font-style: italic;
}

.placeholder-code:empty::before {
    content: "HTMLコードをここに貼り付けてください";
}

.form-iframe-container {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.form-iframe-container iframe {
    display: block;
    width: 100%;
}

.contact-form {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f0f0f0;
}

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

.form-group-full {
    grid-column: 1 / -1;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #333;
    font-weight: 500;
}

.required {
    color: #FF6B35;
}

.form-description {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background: #fafafa;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #FF6B35;
    box-shadow: 0 0 0 2px rgba(255, 107, 53, 0.1);
    background: white;
}

.char-count {
    text-align: right;
    font-size: 0.9rem;
    color: #666;
    margin-top: 0.5rem;
}

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

/* Footer */
.footer {
    background: #333;
    color: white;
    padding: 3rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: start;
}

.footer-brand h3 {
    background: linear-gradient(135deg, #FF6B35, #FF8A65);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: #ccc;
    margin: 0;
}

/* Scroll Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

/* Scroll animation classes */
.scroll-animate {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.scroll-animate.animate {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animation for child elements */
.scroll-animate.animate-delay-1 {
    transition-delay: 0.1s;
}

/* Course lineup specific animations */
.scroll-animate.animate .lineup-diagram {
    animation-delay: 0.2s;
    animation-duration: 0.8s;
    animation-fill-mode: both;
}

.scroll-animate.animate .subsection-title {
    animation-delay: 0.4s;
    animation-duration: 0.6s;
    animation-fill-mode: both;
}

.scroll-animate.animate-delay-2 {
    transition-delay: 0.2s;
}

.scroll-animate.animate-delay-3 {
    transition-delay: 0.3s;
}

/* Child element animations within sections */
.scroll-animate.animate .section-title {
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.scroll-animate.animate .section-description {
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.scroll-animate.animate .problems-grid > *:nth-child(1) {
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.scroll-animate.animate .problems-grid > *:nth-child(2) {
    animation: fadeInUp 0.8s ease-out 0.7s both;
}

.scroll-animate.animate .problems-grid > *:nth-child(3) {
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.scroll-animate.animate .features-grid > *:nth-child(1) {
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.scroll-animate.animate .features-grid > *:nth-child(2) {
    animation: fadeInUp 0.8s ease-out 0.7s both;
}

.scroll-animate.animate .features-grid > *:nth-child(3) {
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.scroll-animate.animate .lineup-diagram {
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.scroll-animate.animate .video-container {
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.scroll-animate.animate .faq-list {
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.scroll-animate.animate .form-tabs {
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.scroll-animate.animate .tab-content-container {
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

/* Course cards animation */
.scroll-animate.animate .course-grid > *:nth-child(1) {
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.scroll-animate.animate .course-grid > *:nth-child(2) {
    animation: fadeInUp 0.8s ease-out 0.7s both;
}

.footer-nav {
    display: flex;
    gap: 3rem;
}

.footer-nav ul {
    list-style: none;
    padding: 0;
}

.footer-nav li {
    margin-bottom: 0.5rem;
}

.footer-nav a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-nav a:hover {
    color: #FF6B35;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu,
    .nav-cta {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero {
        padding: 120px 0 50px;
        min-height: 350px;
    }
    
    .hero-content {
        text-align: center;
        min-height: 250px;
    }
    
    .hero-text {
        max-width: 100%;
    }
    
    .hero-badge {
        font-size: 1.65rem;
        padding: 0.2rem 0.4rem;
        margin-bottom: 1rem;
        font-weight: 900;
        line-height: 1.3;
        letter-spacing: -0.02em;
        text-align: center;
    }
    
    .hero-main-title {
        font-size: 2.15rem;
        line-height: 1.3;
        margin-bottom: 1rem;
        text-align: center;
        padding: 0.2rem 0.4rem;
    }
    
    .hero-sub-text-container {
        margin-bottom: 1rem;
        align-items: center;
    }
    
    .hero-hashtags {
        margin-bottom: 2rem;
        gap: 0.6rem;
    }
    
    .hashtag-row {
        gap: 0.6rem;
    }
    
    .hashtag-item {
        font-size: 0.8rem;
        padding: 0.4rem 0.6rem;
    }
    
    .hero-sub-text {
        font-size: 0.99rem;
        padding: 0;
    }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
        align-items: center;
        gap: 0;
    }
    
    .hero-text {
        width: 100%;
        max-width: 100%;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    
    .hero-circle-badge {
        width: 140px;
        height: 140px;
        bottom: 15px;
        right: -30px;
    }
    
    .badge-text {
        font-size: 0.9rem;
    }
    
    .hero-image {
        flex: none;
        width: 100%;
        height: 200px;
        position: relative;
        margin-top: 1rem;
    }
    
    .hero-image-container {
        position: static;
        width: 100%;
        height: 100%;
        display: flex;
        justify-content: center;
    }
    
    .hero-main-image {
        position: static;
        width: 50%;
        max-height: 200px;
        margin: 0 auto;
    }
    
    .hero-circle-badge {
        bottom: 5px;
        right: 20%;
        width: 60px;
        height: 60px;
    }
    
    .videos-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-top: 2rem;
    }
    
    .video-item {
        padding: 0.8rem;
    }
}

/* Extra small mobile devices */
@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
        line-height: 1.2;
    }
    
    .hero-image {
        height: 160px;
    }
    
    .hero-main-image {
        width: 45%;
        max-height: 160px;
    }
    
    .hero-circle-badge {
        width: 50px;
        height: 50px;
        right: 25%;
        bottom: 2px;
    }
    
    .badge-text {
        font-size: 0.65rem;
    }
    
    .hero-image-placeholder {
        max-width: 300px;
        padding: 3rem 1.5rem;
    }
    
    .lineup-flow {
        flex-direction: column;
        gap: 1rem;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
    }
    
    .lineup-additional {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .problems-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .problem-card-simple {
        padding: 1.5rem;
    }
    
    .problem-card-simple h3 {
        font-size: 1.1rem;
    }
    
    .problem-card-simple p {
        font-size: 0.9rem;
    }
    
    .course-grid,
    .other-courses .course-grid {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-nav {
        justify-content: center;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .nav-container {
        padding: 1rem;
    }
    
    .course-card,
    .contact-form {
        padding: 2rem;
    }
    
    /* E-learning mobile styles */
    .elearning-overview {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .pricing {
        justify-content: center;
    }
    
    .curriculum-table td {
        padding: 0.8rem;
    }
    
    .lesson-number {
        width: 40px;
        font-size: 1rem;
    }
    
    .lesson-title {
        font-size: 0.9rem;
    }
    
    .curriculum-simple-table th,
    .curriculum-simple-table td {
        padding: 0.8rem;
    }
    
    .elearning-two-column {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .category-section {
        padding: 1.2rem;
    }
    
    .price-display {
        font-size: 1rem;
    }
    
    .price-display .price-current {
        font-size: 1.3rem;
    }
    
    /* Tab form mobile styles */
    .form-tabs {
        margin-bottom: 1.5rem;
    }
    
    .tab-button {
        padding: 1rem;
        font-size: 0.95rem;
        flex-direction: column;
        gap: 0.3rem;
    }
    
    .tab-button i {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .problem-card,
    .feature-card {
        padding: 1.5rem;
    }
    
    .problem-card-simple {
        padding: 1.2rem;
    }
    
    .problem-card-simple h3 {
        font-size: 1rem;
    }
    
    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.85rem;
    }
    
    /* E-learning small mobile styles */
    .chapter-title {
        font-size: 0.9rem;
        padding: 0.6rem 0.8rem;
    }
    
    .curriculum-title {
        font-size: 1rem;
    }
    
    .stage-number {
        width: 25px;
        height: 25px;
        font-size: 0.85rem;
        top: -6px;
        left: -6px;
    }
    
    .stage-box h4 {
        font-size: 0.9rem;
    }
    
    .course-item-hero {
        font-size: 0.9rem;
        padding: 0.8rem 1rem;
    }
    
    .elearning-benefits li {
        font-size: 0.9rem;
    }
    
    /* Tab form small mobile styles */
    .tab-button {
        padding: 0.8rem 1rem;
        font-size: 0.9rem;
    }
    
    .placeholder-content i {
        font-size: 2.5rem;
    }
    
    .placeholder-content h3 {
        font-size: 1.3rem;
    }
    
    .form-placeholder {
        padding: 2rem 1.5rem;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Gradient background patterns */
.gradient-bg-1 {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
}

.gradient-bg-2 {
    background: linear-gradient(135deg, #f8f9fa 0%, #fff3f0 100%);
}