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

body {
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    line-height: 1.7;
    color: #333;
    background-color: #fafbff;
}

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

/* Cookie Consent Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #4A90E2 0%, #6BB6FF 100%);
    color: white;
    padding: 20px;
    z-index: 10000;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.cookie-text {
    flex: 1;
    min-width: 300px;
}

.cookie-buttons {
    display: flex;
    gap: 15px;
}

.cookie-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.cookie-accept {
    background: #87CEEB;
    color: white;
}

.cookie-decline {
    background: rgba(255,255,255,0.2);
    color: white;
    border: 2px solid rgba(255,255,255,0.3);
}

/* Header */
header {
    background: linear-gradient(135deg, #4A90E2 0%, #6BB6FF 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="80" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="60" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-top: 60px; /* ヘッダーロゴ分の余白を追加 */
}

.hero-text {
    text-align: left;
}

/* ヘッダーロゴスタイル */
.header-logo {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 3;
    display: flex;
    align-items: center;
    gap: 15px;
}

.header-logo img {
    width: 120px;
    height: auto;
    filter: brightness(0) invert(1);
}

.header-service-name {
    color: white;
    font-size: 1.3em;
    font-weight: 600;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

/* レスポンシブ対応した画像スタイル */
.hero-image img {
    max-width: 100%;
    width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: contain;
    border-radius: 15px;
    /*box-shadow: 0 20px 60px rgba(0,0,0,0.2);*/
}

.hero-image-placeholder {
    width: 100%;
    height: 400px;
    background: rgba(255,255,255,0.15);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 2px dashed rgba(255,255,255,0.3);
    backdrop-filter: blur(10px);
}

.hero-image-placeholder i {
    font-size: 4em;
    opacity: 0.7;
    margin-bottom: 20px;
}

.hero-image-placeholder p {
    text-align: center;
    opacity: 0.8;
    font-size: 1.1em;
    line-height: 1.4;
}

.hero-title {
    font-size: 3em;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
    animation: slideInDown 1s ease-out;
    margin-bottom: 15px;
}

.hero-subtitle {
    font-size: 1.5em;
    margin-bottom: 20px;
    opacity: 0.95;
    animation: slideInUp 1s ease-out 0.3s both;
}

.hero-features {
    display: flex;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
    animation: fadeIn 1s ease-out 0.6s both;
}

.hero-feature {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.95);
    color: #4A90E2;
    padding: 12px 20px;
    border-radius: 25px;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255,255,255,0.8);
    font-size: 1.1em;
    font-weight: 600;
}

.hero-feature i {
    margin-right: 10px;
    font-size: 1.3em;
    color: #4A90E2;
}

.hero-cta-section {
    margin-top: 20px;
    animation: fadeIn 1s ease-out 0.9s both;
}

.hero-cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: flex-start;
    flex-wrap: wrap;
    margin-bottom: 15px;
}

.cta-primary {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(45deg, #FF6B35, #F7931E);
    color: white;
    padding: 18px 35px;
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.3em;
    font-weight: bold;
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4);
    transition: all 0.3s ease;
    border: 2px solid white;
    position: relative;
    overflow: hidden;
}

.cta-primary::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.4), transparent);
    transform: rotate(45deg);
    animation: shine 2.5s ease-in-out infinite;
}

.cta-primary:hover {
    transform: translateY(-3px) scale(1.08);
    box-shadow: 0 12px 35px rgba(255, 107, 53, 0.5);
    background: linear-gradient(45deg, #F7931E, #FF6B35);
    animation: pulse-bounce 0.8s ease-in-out;
}

@keyframes pulse-bounce {
    0%, 100% { transform: translateY(-3px) scale(1.08); }
    25% { transform: translateY(-5px) scale(1.12); }
    50% { transform: translateY(-4px) scale(1.10); }
    75% { transform: translateY(-6px) scale(1.14); }
}

.cta-primary i {
    margin-right: 10px;
    font-size: 1.1em;
}

.cta-secondary-hero {
    display: inline-flex;
    align-items: center;
    background: rgba(255,255,255,0.15);
    color: white;
    padding: 16px 30px;
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.1em;
    font-weight: bold;
    border: 2px solid rgba(255,255,255,0.4);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.cta-secondary-hero:hover {
    background: rgba(255,255,255,0.25);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255,255,255,0.2);
}

.cta-secondary-hero i {
    margin-right: 8px;
}

@keyframes slideInDown {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Common Section Styles */
.section-title {
    text-align: center;
    font-size: 2.8em;
    margin-bottom: 25px;
    color: #2C3E50;
    font-weight: bold;
}

.section-subtitle {
    text-align: center;
    font-size: 1.3em;
    color: #555;
    margin-bottom: 60px;
    line-height: 1.8;
}

/* Problem Section */
.problem-section {
    padding: 100px 0;
    background: white;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.problem-card {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(74, 144, 226, 0.1);
    text-align: center;
    border-left: 6px solid #4A90E2;
    transition: transform 0.3s ease;
    position: relative;
    overflow: hidden;
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4A90E2, #6BB6FF);
}

.problem-card:hover {
    transform: translateY(-8px);
}

.problem-icon {
    font-size: 4em;
    color: #4A90E2;
    margin-bottom: 25px;
}

.problem-title {
    font-size: 1.3em;
    font-weight: bold;
    margin-bottom: 20px;
    color: #2C3E50;
    line-height: 1.4;
}

.problem-description {
    color: #555;
    line-height: 1.8;
    font-size: 1.1em;
}

/* IPO Definition Section */
.ipo-definition-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #4A90E2 0%, #6BB6FF 100%);
    color: white;
}

.ipo-header {
    text-align: center;
    margin-bottom: 50px;
    animation: fadeIn 1s ease-out;
}

.ipo-header h2 {
    font-size: 2.5em;
    margin-bottom: 25px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
    line-height: 1.2;
}

.ipo-header p {
    font-size: 1.2em;
    margin-bottom: 30px;
    line-height: 1.7;
    opacity: 0.95;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.ipo-core-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.ipo-core-feature {
    background: rgba(255,255,255,0.15);
    padding: 15px;
    border-radius: 12px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}

.ipo-core-feature i {
    font-size: 2em;
    margin-bottom: 12px;
    color: #E8F4FD;
}

.ipo-core-feature h3 {
    font-size: 1em;
    margin-bottom: 8px;
    font-weight: 600;
    color: #E8F4FD;
}

.ipo-core-feature p {
    font-size: 0.9em;
    line-height: 1.4;
    opacity: 0.9;
}

.ipo-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: flex-start;
}

.human-loop-detail {
    background: rgba(255,255,255,0.1);
    padding: 30px;
    border-radius: 20px;
    border-left: 4px solid rgba(255,255,255,0.4);
    backdrop-filter: blur(10px);
}

.human-loop-detail h3 {
    font-size: 1.6em;
    margin-bottom: 20px;
    color: #E8F4FD;
    font-weight: 600;
}

.human-loop-detail p {
    font-size: 1.05em;
    line-height: 1.7;
    margin-bottom: 25px;
    opacity: 0.9;
}

.human-loop-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.human-loop-feature {
    background: rgba(255,255,255,0.15);
    padding: 16px;
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

.human-loop-feature h4 {
    font-size: 1.0em;
    margin-bottom: 8px;
    color: #E8F4FD;
    font-weight: 600;
}

.human-loop-feature p {
    font-size: 0.9em;
    opacity: 0.9;
    line-height: 1.5;
}

.ipo-comparison {
    background: rgba(255,255,255,0.97);
    border-radius: 20px;
    padding: 30px;
    color: #333;
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.ipo-comparison h3 {
    text-align: center;
    margin-bottom: 25px;
    color: #4A90E2;
    font-size: 1.6em;
    line-height: 1.3;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 25px;
}

.comparison-item {
    text-align: center;
    padding: 18px;
    border-radius: 12px;
}

.comparison-item.before {
    background: #f8f9fa;
}

.comparison-item.after {
    background: linear-gradient(135deg, #e8f4fd, #f0f8ff);
}

.comparison-item h4 {
    margin-bottom: 12px;
    font-size: 1.05em;
    font-weight: 600;
}

.comparison-item.before h4 {
    color: #e74c3c;
}

.comparison-item.after h4 {
    color: #4A90E2;
}

.comparison-item ul {
    list-style: none;
    text-align: left;
    font-size: 0.9em;
    line-height: 1.6;
}

.comparison-item.before ul {
    color: #666;
}

.comparison-item.after ul {
    color: #4A90E2;
}

.comparison-item li {
    margin-bottom: 8px;
}

.comparison-conclusion {
    text-align: center;
    padding: 18px;
    background: linear-gradient(135deg, #4A90E2, #6BB6FF);
    color: white;
    border-radius: 12px;
}

.comparison-conclusion strong {
    font-size: 1.0em;
    line-height: 1.4;
}

.comparison-additional {
    margin-top: 20px;
    text-align: center;
    padding: 15px;
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

.comparison-additional h4 {
    color: #4A90E2;
    margin-bottom: 10px;
    font-size: 1.1em;
}

.comparison-additional p {
    font-size: 0.95em;
    line-height: 1.6;
}

.knowledge-link {
    display: inline-block;
    background: rgba(255,255,255,0.2);
    color: white;
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 30px;
    margin: 10px 10px 10px 0;
    border: 2px solid rgba(255,255,255,0.3);
    transition: all 0.3s ease;
    font-weight: 500;
}

.knowledge-link:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}

/* Intelligent Flow Features Section */
.intelligent-flow-section {
    padding: 100px 0;
    background: #f8f9ff;
}

.flow-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 50px;
}

.flow-feature-item {
    background: white;
    padding: 50px 40px;
    border-radius: 25px;
    box-shadow: 0 15px 50px rgba(74, 144, 226, 0.15);
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 500px;
}

.flow-feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #4A90E2, #6BB6FF, #87CEEB);
}

.flow-feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 60px rgba(74, 144, 226, 0.25);
}

.flow-feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #4A90E2, #6BB6FF);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    box-shadow: 0 10px 30px rgba(74, 144, 226, 0.3);
}

.flow-feature-icon i {
    font-size: 2.2em;
    color: white;
}

.flow-feature-title {
    font-size: 1.5em;
    font-weight: bold;
    margin-bottom: 20px;
    color: #4A90E2;
}

.flow-feature-description {
    color: #555;
    line-height: 1.8;
    margin-bottom: 25px;
    font-size: 1.05em;
}

.intelligent-highlight {
    background: linear-gradient(135deg, #4A90E2 0%, #6BB6FF 100%);
    color: white;
    padding: 18px;
    border-radius: 12px;
    font-weight: bold;
    font-size: 0.95em;
    box-shadow: 0 5px 20px rgba(74, 144, 226, 0.2);
}

/* Video Demo Section */
.video-demo-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #2C3E50 0%, #34495E 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.video-demo-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(74, 144, 226, 0.1) 25%, transparent 25%, transparent 50%, rgba(74, 144, 226, 0.1) 50%, rgba(74, 144, 226, 0.1) 75%, transparent 75%, transparent);
    background-size: 60px 60px;
    opacity: 0.3;
    animation: moveBackground 20s linear infinite;
}

@keyframes moveBackground {
    0% { background-position: 0 0; }
    100% { background-position: 60px 60px; }
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.video-demo-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.video-demo-text {
    text-align: left;
}

.video-demo-text h2 {
    font-size: 2.5em;
    margin-bottom: 25px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    background: linear-gradient(45deg, #4A90E2, #87CEEB, #6BB6FF);
    background-size: 200% 200%;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientShift 3s ease-in-out infinite;
    line-height: 1.2;
}

.video-demo-text p {
    font-size: 1.2em;
    line-height: 1.7;
    opacity: 0.9;
    margin-bottom: 30px;
}

.video-demo-header {
    margin-bottom: 0;
}

.video-container {
    position: relative;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 20px;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(74, 144, 226, 0.3);
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    transition: all 0.4s ease;
}

.video-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 80px rgba(0,0,0,0.4);
    border-color: rgba(74, 144, 226, 0.5);
}

.video-wrapper {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.4);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 12px;
}

.video-info {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.video-info-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.1);
    padding: 12px 20px;
    border-radius: 25px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.video-info-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.video-info-item i {
    font-size: 1.2em;
    color: #87CEEB;
}

.video-info-item span {
    font-weight: 500;
}

.video-cta {
    margin-top: 30px;
    text-align: left;
}

.video-cta-button {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(45deg, #4A90E2, #6BB6FF);
    color: white;
    padding: 18px 35px;
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.2em;
    font-weight: bold;
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.4);
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.video-cta-button::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.3), transparent);
    transform: rotate(45deg);
    animation: shine 3s ease-in-out infinite;
}

.video-cta-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 12px 35px rgba(74, 144, 226, 0.6);
    background: linear-gradient(45deg, #6BB6FF, #87CEEB);
}

.video-cta-button i {
    margin-right: 10px;
    font-size: 1.1em;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
    100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
}

/* Business Examples Section */
.business-examples-section {
    padding: 100px 0;
    background: white;
}

.examples-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
    margin-top: 50px;
}

.example-card {
    background: linear-gradient(145deg, #4A90E2 0%, #6BB6FF 50%, #87CEEB 100%);
    color: white;
    padding: 45px 35px;
    border-radius: 25px;
    position: relative;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(74, 144, 226, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 500px;
}

.example-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%, rgba(255,255,255,0.1) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.example-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 25px 50px rgba(74, 144, 226, 0.4);
}

.example-card:hover::before {
    opacity: 1;
}

.example-header {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    position: relative;
    z-index: 2;
}

.example-icon {
    font-size: 2.8em;
    margin-right: 25px;
    padding: 25px;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    width: 90px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.example-card:hover .example-icon {
    background: rgba(255, 255, 255, 0.35);
    transform: rotate(5deg) scale(1.1);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
}

.example-header h3 {
    font-size: 1.4em;
    font-weight: 700;
    line-height: 1.3;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    letter-spacing: 0.5px;
}

.example-card ul {
    list-style: none;
    margin-bottom: 30px;
    line-height: 1.9;
    position: relative;
    z-index: 2;
}

.example-card li {
    margin-bottom: 12px;
    padding-left: 25px;
    position: relative;
    font-size: 1.05em;
    font-weight: 500;
}

.example-card li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #E8F4FD;
    font-size: 1.2em;
    top: -2px;
}

.ai-integration-highlight {
    background: rgba(232, 244, 253, 0.95);
    color: #2C3E50;
    padding: 20px;
    border-radius: 15px;
    margin: 25px 0;
    font-weight: 700;
    font-size: 1.05em;
    box-shadow: 0 8px 20px rgba(232, 244, 253, 0.3);
    border-left: 5px solid #87CEEB;
    position: relative;
    z-index: 2;
    min-height: 80px;
    display: flex;
    align-items: center;
}

.human-collaboration {
    background: rgba(255, 255, 255, 0.95);
    border-left: 4px solid #E8F4FD;
    padding: 18px;
    margin: 25px 0;
    border-radius: 10px;
    backdrop-filter: blur(15px);
    font-weight: 600;
    font-size: 1.02em;
    position: relative;
    z-index: 2;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
    min-height: 80px;
    display: flex;
    align-items: center;
    color: #2C3E50;
}

/* Burden Reduction Section */
.burden-reduction-section {
    padding: 100px 0;
    background: #f8f9ff;
}

.burden-comparison-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 50px;
    position: relative;
}

.burden-card {
    background: white;
    border-radius: 20px;
    padding: 35px;
    box-shadow: 0 10px 40px rgba(74, 144, 226, 0.1);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 3px solid;
    display: flex;
    flex-direction: column;
    min-height: 600px;
}

.burden-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(74, 144, 226, 0.2);
}

.before-card {
    border-color: #ff6b6b;
    background: white;
}

.after-card {
    border-color: #4A90E2;
    background: linear-gradient(135deg, #f0f9ff 0%, #dbeafe 100%);
}

.burden-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.before-card::before {
    background: linear-gradient(90deg, #ff6b6b 0%, #ff5252 100%);
}

.after-card::before {
    background: linear-gradient(90deg, #4A90E2 0%, #6BB6FF 100%);
}

.burden-card-header {
    text-align: center;
    margin-bottom: 30px;
    flex-shrink: 0;
}

.burden-card-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 1.8em;
    color: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.burden-card-icon.before {
    background: linear-gradient(135deg, #ff6b6b 0%, #ff5252 100%);
}

.burden-card-icon.after {
    background: linear-gradient(135deg, #4A90E2 0%, #6BB6FF 100%);
}

.burden-card-title {
    font-size: 1.4em;
    font-weight: bold;
    margin-bottom: 8px;
    color: #1a202c;
}

.burden-card-subtitle {
    color: #64748b;
    font-size: 1em;
}

.burden-comparison-items {
    flex: 1;
    margin-bottom: 25px;
}

.burden-items-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.burden-comparison-item {
    display: flex;
    align-items: flex-start;
    padding: 12px;
    background: rgba(255,255,255,0.8);
    border-radius: 12px;
    border-left: 4px solid;
    transition: all 0.3s ease;
}

.burden-comparison-item:hover {
    transform: translateX(5px);
    background: rgba(255,255,255,0.95);
}

.before-card .burden-comparison-item {
    border-left-color: #ff6b6b;
}

.after-card .burden-comparison-item {
    border-left-color: #4A90E2;
}

.burden-item-icon {
    font-size: 1.3em;
    margin-right: 15px;
    width: 30px;
    text-align: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.burden-item-icon.before {
    color: #ff6b6b;
}

.burden-item-icon.after {
    color: #4A90E2;
}

.burden-item-content {
    flex: 1;
}

.burden-item-title {
    font-size: 1em;
    font-weight: 600;
    color: #1a202c;
    margin-bottom: 5px;
    line-height: 1.4;
}

.burden-item-description {
    color: #64748b;
    font-size: 0.9em;
    line-height: 1.5;
}

.burden-person-area {
    background: rgba(255,255,255,0.9);
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    flex-shrink: 0;
    backdrop-filter: blur(10px);
}

.burden-person-illustration {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin: 0 auto 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5em;
    border: 3px solid;
}

.burden-person-illustration.before {
    background: linear-gradient(135deg, #a0aec0 0%, #718096 100%);
    border-color: #4a5568;
    color: #1a202c;
}

.burden-person-illustration.after {
    background: linear-gradient(135deg, #4A90E2 0%, #6BB6FF 100%);
    border-color: #2b6cb0;
    color: white;
}

.burden-person-name {
    font-size: 1em;
    font-weight: 600;
    margin-bottom: 8px;
    color: #1a202c;
}

.burden-person-status {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9em;
    color: white;
}

.burden-person-status.before {
    background: linear-gradient(135deg, #ff6b6b 0%, #ff5252 100%);
}

.burden-person-status.after {
    background: linear-gradient(135deg, #4A90E2 0%, #6BB6FF 100%);
}

.burden-arrow-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    background: white;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 20px rgba(74, 144, 226, 0.2);
    border: 3px solid #4A90E2;
}

.burden-arrow-icon {
    font-size: 1.2em;
    color: #4A90E2;
    animation: arrow-pulse 2s ease-in-out infinite;
}

@keyframes arrow-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Pricing Section */
.pricing-section {
    padding: 100px 0;
    background: white;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 50px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.pricing-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 8px 30px rgba(74, 144, 226, 0.1);
    transition: transform 0.3s ease;
    position: relative;
    border: 2px solid #e0e0e0;
}

.pricing-card:hover {
    transform: translateY(-5px);
}

.pricing-card.recommended {
    border: 3px solid #4A90E2;
    transform: scale(1.05);
}

.pricing-card.recommended .recommended-badge {
    position: absolute;
    top: -15px;
    right: 30px;
    background: #4A90E2;
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9em;
}

.plan-header {
    text-align: center;
    margin-bottom: 30px;
}

.plan-title {
    font-size: 1.5em;
    font-weight: bold;
    margin-bottom: 20px;
    color: #4A90E2;
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 10px;
}

.price-amount {
    font-size: 3em;
    font-weight: bold;
    color: #4A90E2;
}

.price-period {
    font-size: 1.2em;
    color: #7f8c8d;
    margin-left: 5px;
}

.annual-discount {
    font-size: 1em;
    color: #4A90E2;
    font-weight: bold;
}

.plan-features {
    list-style: none;
    margin-bottom: 40px;
}

.plan-features li {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    font-size: 1em;
    color: #555;
}

.plan-features i {
    color: #4A90E2;
    margin-right: 10px;
    font-size: 1.1em;
}

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

.plan-button {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    transition: all 0.3s ease;
    width: 100%;
    text-align: center;
}

.free-button {
    background: white;
    color: #4A90E2;
    border: 2px solid #4A90E2;
}

.free-button:hover {
    background: #4A90E2;
    color: white;
    transform: translateY(-2px);
}

.paid-button {
    background: linear-gradient(45deg, #4A90E2, #6BB6FF);
    color: white;
    border: 2px solid #4A90E2;
}

.paid-button:hover {
    background: linear-gradient(45deg, #6BB6FF, #4A90E2);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.4);
}

/* FAQ Section */
.faq-section {
    padding: 100px 0;
    background: #f8f9ff;
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    margin-bottom: 25px;
    border-radius: 20px;
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.1);
    overflow: hidden;
}

.faq-question {
    background: linear-gradient(135deg, #4A90E2 0%, #6BB6FF 100%);
    color: white;
    padding: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1em;
    font-weight: 500;
}

.faq-question:hover {
    background: linear-gradient(135deg, #6BB6FF 0%, #4A90E2 100%);
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    font-size: 1.1em;
    line-height: 1.8;
}

.faq-answer.active {
    padding: 25px;
    max-height: 600px;
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #4A90E2 0%, #6BB6FF 100%);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 3em;
    margin-bottom: 25px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.cta-content p {
    font-size: 1.4em;
    margin-bottom: 50px;
    opacity: 0.9;
}

.cta-buttons {
    text-align: center;
    margin-bottom: 50px;
}

.cta-main {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(45deg, #FF6B35, #F7931E);
    color: white;
    padding: 20px 45px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    border: 3px solid white;
    transition: all 0.3s ease;
    font-size: 1.4em;
    box-shadow: 0 8px 30px rgba(255, 107, 53, 0.4);
    position: relative;
    overflow: hidden;
    margin-bottom: 15px;
}

.cta-main::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.3), transparent);
    transform: rotate(45deg);
    animation: shine 3s ease-in-out infinite;
}

.cta-main:hover {
    background: linear-gradient(45deg, #F7931E, #FF6B35);
    transform: translateY(-3px) scale(1.08);
    box-shadow: 0 12px 40px rgba(255, 107, 53, 0.6);
}

.cta-main i {
    margin-right: 12px;
    font-size: 1.2em;
}

.cta-supplement {
    color: rgba(255,255,255,0.9);
    font-size: 1.1em;
    margin-bottom: 25px;
    font-weight: 500;
}

.cta-sub-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.cta-sub-link {
    background: white;
    color: #4A90E2;
    text-decoration: none;
    font-size: 1.1em;
    font-weight: 600;
    padding: 15px 30px;
    border-radius: 50px;
    transition: all 0.3s ease;
    border: 2px solid white;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.cta-sub-link:hover {
    background: #f8f9ff;
    color: #2C3E50;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
    border-color: #f8f9ff;
}

.cta-sub-link i {
    margin-right: 8px;
    font-size: 1em;
}

.cta-secondary {
    background: linear-gradient(45deg, #87CEEB, #B0E0E6);
    color: #2C3E50;
    padding: 18px 35px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    border: 2px solid white;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    font-size: 1.2em;
    box-shadow: 0 6px 20px rgba(135, 206, 235, 0.3);
    position: relative;
    overflow: hidden;
}

.cta-secondary::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.3), transparent);
    transform: rotate(45deg);
    animation: shine 3s ease-in-out infinite;
}

.cta-secondary:hover {
    background: linear-gradient(45deg, #B0E0E6, #87CEEB);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 30px rgba(135, 206, 235, 0.4);
    animation: bounce 0.6s ease-in-out;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
    100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(-3px) scale(1.05); }
    40% { transform: translateY(-5px) scale(1.08); }
    60% { transform: translateY(-2px) scale(1.03); }
}

.cta-secondary i {
    margin-right: 10px;
    font-size: 1.1em;
}

.cta-additional-info {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    margin-top: 40px;
}

.cta-info-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1em;
    opacity: 0.9;
}

.cta-info-item i {
    font-size: 1.3em;
    color: #E8F4FD;
}

/* Footer */
footer {
    background: #2c3e50;
    color: white;
    padding: 80px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 50px;
    margin-bottom: 50px;
}

.footer-section h3 {
    margin-bottom: 25px;
    color: #4A90E2;
    font-size: 1.3em;
}

.footer-section p, .footer-section li {
    margin-bottom: 12px;
    opacity: 0.8;
    line-height: 1.7;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: #4A90E2;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #87CEEB;
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid #444;
    opacity: 0.7;
}

/* Navigation Header */
.nav-header {
    background: white;
    padding: 20px 0;
    box-shadow: 0 2px 15px rgba(74, 144, 226, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
    flex-shrink: 0;
}

.nav-logo a {
    text-decoration: none;
}

.nav-logo img {
    width: 100px;
}

.service-name {
    color: #4A90E2;
    font-size: 1.2em;
    font-weight: 600;
    white-space: nowrap;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.nav-menu a {
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
    font-size: 0.85em;
    white-space: nowrap;
    padding: 6px 10px;
    border-radius: 20px;
}

.nav-menu a:hover {
    color: #4A90E2;
    background: rgba(74, 144, 226, 0.05);
}

.nav-cta {
    background: linear-gradient(45deg, #4A90E2, #6BB6FF);
    color: white;
    padding: 12px 25px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 800;
    transition: all 0.3s ease;
    border: 2px solid white;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.3);
}

.nav-cta-trial {
    background: linear-gradient(45deg, #FF6B35, #F7931E);
    color: white !important;
    font-weight: 800;
    border: 2px solid white;
    animation: pulse-glow 2s ease-in-out infinite;
}

.nav-cta-trial:hover {
    background: linear-gradient(45deg, #F7931E, #FF6B35) !important;
    color: white !important;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.5);
    animation: none;
}

.nav-cta-download {
    background: rgba(74, 144, 226, 0.1);
    color: #4A90E2 !important;
    font-weight: 800;
    border: 2px solid rgba(74, 144, 226, 0.4);
    backdrop-filter: blur(10px);
}

.nav-cta-download:hover {
    background: linear-gradient(45deg, #FF6B35, #F7931E);
    color: #6BB6FF !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.3);
}

@keyframes pulse-glow {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
    }
    50% { 
        transform: scale(1.05);
        box-shadow: 0 6px 25px rgba(255, 107, 53, 0.6);
    }
}

/* Mobile Navigation */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5em;
    color: #4A90E2;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 4px 20px rgba(74, 144, 226, 0.1);
    padding: 20px;
}

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

.mobile-menu a {
    display: block;
    padding: 15px 0;
    color: #333;
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid #f0f0f0;
    transition: color 0.3s ease;
}

.mobile-menu a:hover {
    color: #4A90E2;
}

.mobile-menu .nav-cta {
    display: inline-block;
    margin-top: 15px;
    padding: 12px 25px;
    border-bottom: none;
}

/* Scroll Progress Bar */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: linear-gradient(45deg, #4A90E2, #6BB6FF);
    z-index: 9999;
    transition: width 0.3s ease;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }

    /* ヘッダーロゴのモバイル対応 - 重要な修正 */
    .header-logo {
        position: relative; /* 絶対配置を相対配置に変更 */
        top: auto;
        left: auto;
        justify-content: center;
        margin-bottom: 30px;
        width: 100%;
        text-align: center;
    }

    .header-logo img {
        width: 100px;
    }

    .header-service-name {
        font-size: 1.1em;
    }

    /* ヒーローセクションの調整 */
    header {
        padding: 40px 0;
    }

    .hero-content {
        margin-top: 0; /* モバイルではマージントップをリセット */
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

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

    .hero-title {
        font-size: 2.2em;
        line-height: 1.2;
        margin-bottom: 20px;
    }

    .hero-subtitle {
        font-size: 1.1em;
        margin-bottom: 25px;
    }

    .hero-features {
        justify-content: center;
        margin-bottom: 25px;
    }

    .hero-feature {
        font-size: 0.95em;
        padding: 10px 16px;
    }

    .hero-cta-buttons {
        justify-content: center;
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .cta-primary, .cta-secondary-hero {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    /* 画像のモバイル対応 */
    .hero-image img {
        max-height: 300px;
        border-radius: 10px;
    }

    .ipo-details {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .section-title {
        font-size: 2.0em;
        line-height: 1.3;
    }

    .section-subtitle {
        font-size: 1.1em;
        margin-bottom: 40px;
    }

    .problem-grid, .flow-features-grid {
        grid-template-columns: 1fr;
    }

    .examples-grid {
        grid-template-columns: 1fr;
    }

    .burden-comparison-container {
        grid-template-columns: 1fr;
        gap: 30px;
        position: relative;
    }

    .burden-arrow-container {
        position: static;
        transform: none;
        margin: -15px auto;
        width: 45px;
        height: 45px;
    }
    
    .burden-arrow-icon {
        font-size: 1.1em;
    }
    
    .burden-arrow-icon i::before {
        content: '\f063' !important; /* fa-arrow-down のUnicodeコード */
    }

    .burden-card {
        min-height: auto;
        padding: 25px;
    }

    .burden-items-grid {
        grid-template-columns: 1fr;
    }

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

    .cta-main {
        font-size: 1.2em;
        padding: 18px 35px;
    }

    .cta-supplement {
        font-size: 1em;
        margin-bottom: 20px;
    }

    .cta-sub-links {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }

    .cta-additional-info {
        flex-direction: column;
        gap: 20px;
    }

    .cookie-content {
        flex-direction: column;
    }

    .cookie-buttons {
        align-self: stretch;
    }

    .cookie-btn {
        flex: 1;
    }

    .pricing-cards {
        grid-template-columns: 1fr;
    }

    .pricing-card.recommended {
        transform: none;
    }

    .human-loop-features {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .ipo-header h2 {
        font-size: 1.9em;
        text-align: center;
        line-height: 1.3;
    }

    .ipo-core-features {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .ipo-details {
        gap: 30px;
    }

    .human-loop-detail, .ipo-comparison {
        padding: 25px;
    }

    .example-header {
        flex-direction: column;
        text-align: center;
    }

    .example-icon {
        margin-right: 0;
        margin-bottom: 15px;
    }

    /* Video Demo Mobile Responsive */
    .video-demo-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

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

    .video-demo-text .video-cta {
        text-align: center;
    }

    .video-demo-text h2 {
        font-size: 2.2em;
    }

    .video-demo-text p {
        font-size: 1.2em;
    }

    .video-container {
        padding: 15px;
    }

    .video-info {
        gap: 20px;
    }

    .video-info-item {
        padding: 10px 15px;
    }

    .video-cta-button {
        font-size: 1.1em;
        padding: 15px 30px;
    }
}

@media (max-width: 480px) {
    /* ナビゲーションヘッダーの調整 */
    .nav-container {
        padding: 0 15px;
    }

    .nav-logo img {
        width: 80px;
    }

    .service-name {
        font-size: 1.0em;
    }

    /* ヒーローセクションの小さいモバイル対応 */
    header {
        padding: 30px 0;
    }

    .container {
        padding: 0 15px;
    }

    .header-logo {
        margin-bottom: 25px;
        gap: 10px;
    }

    .header-logo img {
        width: 80px;
    }

    .header-service-name {
        font-size: 1.0em;
    }

    .hero-title {
        font-size: 1.8em;
        line-height: 1.2;
        margin-bottom: 15px;
    }

    .hero-subtitle {
        font-size: 1.0em;
        margin-bottom: 20px;
    }

    .hero-features {
        gap: 10px;
        margin-bottom: 20px;
    }

    .hero-feature {
        font-size: 0.85em;
        padding: 8px 12px;
    }

    .hero-feature i {
        font-size: 1.1em;
    }

    .cta-primary {
        font-size: 1.1em;
        padding: 15px 25px;
    }

    .cta-secondary-hero {
        font-size: 1.0em;
        padding: 12px 20px;
    }

    /* 画像の小さいモバイル対応 */
    .hero-image img {
        max-height: 220px;
        border-radius: 8px;
    }

    .section-title {
        font-size: 1.6em;
        line-height: 1.3;
        margin-bottom: 20px;
    }

    .section-subtitle {
        font-size: 1.0em;
        margin-bottom: 30px;
    }

    .ipo-header h2 {
        font-size: 1.5em;
        line-height: 1.3;
    }

    .ipo-header p {
        font-size: 1.0em;
    }

    .ipo-core-features {
        gap: 12px;
    }

    .ipo-core-feature {
        padding: 12px;
    }

    .ipo-core-feature i {
        font-size: 1.8em;
        margin-bottom: 10px;
    }

    .ipo-core-feature h3 {
        font-size: 0.95em;
    }

    .ipo-core-feature p {
        font-size: 0.85em;
    }

    .human-loop-detail, .ipo-comparison {
        padding: 20px;
    }

    .human-loop-detail h3 {
        font-size: 1.4em;
    }

    .human-loop-feature {
        padding: 12px;
    }

    .human-loop-feature h4 {
        font-size: 0.95em;
    }

    .human-loop-feature p {
        font-size: 0.85em;
    }

    .comparison-grid {
        gap: 10px;
    }

    .comparison-item {
        padding: 15px;
    }

    /* Video Demo Small Mobile */
    .video-demo-text h2 {
        font-size: 1.6em;
    }

    .video-demo-text p {
        font-size: 1.0em;
    }

    .video-container {
        padding: 10px;
    }

    .video-info {
        flex-direction: column;
        gap: 15px;
    }

    .video-info-item {
        justify-content: center;
    }

    /* Problem cards */
    .problem-card {
        padding: 25px 20px;
    }

    .problem-icon {
        font-size: 3em;
        margin-bottom: 20px;
    }

    .problem-title {
        font-size: 1.1em;
        margin-bottom: 15px;
    }

    .problem-description {
        font-size: 1.0em;
    }

    /* Flow features */
    .flow-feature-item {
        padding: 30px 20px;
        min-height: 400px;
    }

    .flow-feature-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 20px;
    }

    .flow-feature-icon i {
        font-size: 1.8em;
    }

    .flow-feature-title {
        font-size: 1.3em;
        margin-bottom: 15px;
    }

    .flow-feature-description {
        font-size: 1.0em;
        margin-bottom: 20px;
    }

    .intelligent-highlight {
        padding: 15px;
        font-size: 0.9em;
        min-height: 60px;
    }

    /* Example cards */
    .example-card {
        padding: 30px 20px;
        min-height: 400px;
    }

    .example-header h3 {
        font-size: 1.2em;
    }

    .example-icon {
        width: 70px;
        height: 70px;
        padding: 20px;
        font-size: 2.2em;
    }

    .ai-integration-highlight, .human-collaboration {
        padding: 15px;
        font-size: 0.95em;
        min-height: 60px;
    }

    /* CTA Section */
    .cta-content h2 {
        font-size: 2.0em;
        margin-bottom: 20px;
    }

    .cta-content p {
        font-size: 1.1em;
        margin-bottom: 30px;
    }

    .cta-main {
        font-size: 1.0em;
        padding: 15px 25px;
    }

    .cta-supplement {
        font-size: 0.9em;
    }

    .cta-sub-link {
        font-size: 1.0em;
    }
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

.slide-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}