* {
    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: 1.6;
    color: #333;
    background-color: #fafafa;
    overflow-x: hidden; /* 横スクロール防止 */
}

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

/* Header */
header {
    background: linear-gradient(135deg, #4a90e2 0%, #7bb3f0 100%);
    color: white;
    padding: 80px 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;
}

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

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

.hero-image img {
    max-width: 90%;
}

.hero-image-placeholder {
    width: 100%;
    height: 400px;
    background: rgba(255,255,255,0.15);
    border-radius: 20px;
    display: flex;
    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: 0.5;
    margin-bottom: 20px;
}

.hero-image-placeholder p {
    text-align: center;
    opacity: 0.7;
    font-size: 1.1em;
}

.hero-title {
    font-size: 3.2em;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    animation: slideInDown 1s ease-out;
}

.hero-subtitle {
    font-size: 1.4em;
    margin-bottom: 30px;
    opacity: 0.95;
    animation: slideInUp 1s ease-out 0.3s both;
}

.hero-description {
    font-size: 1.2em;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-features {
    display: flex;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
    animation: fadeIn 1s ease-out 0.6s both;
    color: #2c3e50;
    width: 100%; /* 幅を制限 */
}

.hero-feature {
    display: flex; /* コメントアウトを削除 */
    align-items: center;
    background: #fff;
    padding: 12px 20px;
    border-radius: 25px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    max-width: 100%; /* 最大幅を設定 */
    word-wrap: break-word; /* 長いテキストを折り返し */
    flex-shrink: 1; /* フレックスアイテムの縮小を許可 */
    min-width: 0;
}

.hero-feature i {
    margin-right: 10px;
    font-size: 1.2em;
    color: #4a90e2;
    flex-shrink: 0; /* アイコンの縮小を防ぐ */
}

.hero-feature span {
    flex: 1; /* テキスト部分の設定 */
    min-width: 0;
}

.cta-primary {
    display: inline-block;
    background: linear-gradient(45deg, #FF7043, #FF8A65);
    color: white;
    padding: 15px 40px;
    text-decoration: none;
    border-radius: 50px;
    border-style: solid;
    border-color: #fff;
    font-size: 1.3em;
    font-weight: bold;
    transition: all 0.3s ease;
    animation: glowingPulse 3s ease-in-out infinite;
    position: relative;
    overflow: hidden;
}

.cta-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(255, 112, 67, 0.6);
    animation-play-state: paused;
}

.cta-primary::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #FF7043, #FF8A65, #FFB74D, #FF7043);
    border-radius: 50px;
    z-index: -1;
    opacity: 0;
    animation: glowingBorder 3s ease-in-out infinite;
}

.cta-secondary {
    display: inline-block;
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    padding: 15px 40px;
    text-decoration: none;
    border-radius: 50px;
    border-style: solid;
    border-color:rgba(255, 255, 255, 0.4);
    font-size: 1.3em;
    font-weight: bold;
    box-shadow: 0 8px 25px rgba(79, 195, 247, 0.4);
    transition: all 0.3s ease;
}

.cta-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(79, 195, 247, 0.6);
}

@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); }
}

/* Problem Section */
.problem-section {
    padding: 80px 0;
    background: white;
}

.section-title {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 20px;
    color: #2c3e50;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2em;
    color: #7f8c8d;
    margin-bottom: 60px;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.problem-card {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    text-align: center;
    border-left: 5px solid #4a90e2;
    transition: transform 0.3s ease;
}

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

.problem-icon {
    font-size: 3em;
    color: #4a90e2;
    margin-bottom: 20px;
}

.problem-title {
    font-size: 1.4em;
    font-weight: bold;
    margin-bottom: 15px;
    color: #2c3e50;
}

.problem-description {
    color: #7f8c8d;
    line-height: 1.7;
}

/* IPO Definition Section */
.ipo-definition-section {
    padding: 40px 0;
    background: linear-gradient(135deg, #4a90e2 0%, #7bb3f0 100%);
    color: white;
}

.ipo-main-title {
    text-align: center;
    margin-bottom: 30px;
}

.ipo-title {
    font-size: 2em;
    font-weight: bold;
    color: white;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.ipo-description {
    font-size: 1.3em;
    color: rgba(255,255,255,0.95);
    line-height: 1.8;
    max-width: 900px;
    margin: 0 auto;
}

.ipo-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.ipo-card {
    background: rgba(255,255,255,0.15);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}

.ipo-card-icon {
    font-size: 30px;
    margin-bottom: 20px;
}

.ipo-card-title {
    color: white;
    font-size: 1.2em;
    margin-bottom: 10px;
    font-weight: 600;
}

.ipo-card-text {
    color: rgba(255,255,255,0.9);
    line-height: 1.6;
}

.ipo-two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.ipo-left-content {
    color: white;
}

.ipo-benefit-item {
    align-items: center;
    margin-bottom: 20px;
}

.ipo-benefit-item-last {
    margin-bottom: 30px;
}

.ipo-benefit-dot {
    width: 10px;
    height: 10px;
    margin-right: 15px;
}

.ipo-benefit-title {
    font-size: 1.1em;
}

.ipo-benefit-text {
    opacity: 0.9;
}

.ipo-download-section {
    text-align: left;
}

.ipo-download-link {
    display: inline-block;
    font-weight: bold;
    background: #fff;
    color: #4da6ff;
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 25px;
    border: 1px solid rgba(255,255,255,0.3);
    transition: all 0.3s ease;
}

.ipo-download-link i {
    margin-right: 8px;
}

.ipo-comparison-card {
    background: rgba(255,255,255,0.95);
    border-radius: 20px;
    padding: 30px;
    color: #333;
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
}

.ipo-comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.ipo-comparison-column {
    text-align: center;
}

.ipo-comparison-title {
    margin-bottom: 15px;
    font-size: 1.1em;
    font-weight: 600;
}

.ipo-comparison-title.traditional {
    color: #e74c3c;
}

.ipo-comparison-title.modern {
    color: #4a90e2;
}

.ipo-comparison-items {
    font-size: 0.9em;
    line-height: 1.6;
}

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

.ipo-comparison-column:first-child .ipo-comparison-items {
    color: #666;
}

.ipo-comparison-column:last-child .ipo-comparison-items {
    color: #333;
}

.ipo-comparison-footer {
    text-align: center;
    background: #4a90e2;
    color: white;
    padding: 15px;
    border-radius: 10px;
    margin-top: 20px;
}

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

.definition-text h2 {
    font-size: 2.5em;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.definition-visual {
    background: rgba(255,255,255,0.95);
    border-radius: 20px;
    padding: 30px;
    color: #333;
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
}

.knowledge-link {
    display: inline-block;
    background: rgba(255,255,255,0.2);
    color: white;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 25px;
    margin: 10px 10px 10px 0;
    border: 1px solid rgba(255,255,255,0.3);
    transition: all 0.3s ease;
}

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

/* Intelligent Flow Section */
.intelligent-flow-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.intelligent-flow-grid {
    margin-top: 50px;
}

.intelligent-flow-content {
    text-align: center;
    padding: 40px 30px;
}

.intelligent-flow-icon-wrapper {
    width: 80px;
    height: 80px;
    background: #4a90e2;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
}

.intelligent-flow-icon {
    font-size: 2em;
    color: white;
}

.intelligent-flow-title {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 1.3em;
    font-weight: 600;
}

.intelligent-flow-description {
    color: #666;
    line-height: 1.7;
    margin-bottom: 25px;
    font-size: 0.95em;
}

.intelligent-flow-badge {
    background: #4a90e2;
    color: white;
    padding: 12px 25px;
    border-radius: 25px;
    font-size: 0.9em;
    font-weight: 600;
    margin-bottom: 15px;
}

.flow-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.flow-item {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    text-align: center;
    position: relative;
}

.flow-item-new {
    background: white;
    border-radius: 15px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e0e0e0;
}

.flow-item-new:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

.flow-number {
    position: absolute;
    top: -15px;
    left: 30px;
    background: #4a90e2;
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
}

/* YouTube Video Section */
.video-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #E1F5FE 0%, #B3E5FC 100%);
    text-align: center;
}

.video-section p {
    margin-bottom: 40px;
}

.video-section-title {
    color: #2c3e50;
    margin-bottom: 40px;
    font-size: 1.8em;
    text-align: center;
}

.video-section-title i {
    color: #4a90e2;
}

.video-two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.video-left-content {
    padding-right: 20px;
}

.video-challenge-box {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.video-challenge-title {
    color: #4a90e2;
    margin-bottom: 15px;
    font-size: 1.3em;
}

.video-challenge-list {
    color: #333;
    line-height: 1.8;
    margin: 0;
    padding-left: 20px;
    text-align: left;
}

.video-description {
    color: #7f8c8d;
    font-size: 1.1em;
    line-height: 1.6;
}

.video-highlight {
    color: #4a90e2;
}

.video-right-content {
    background: white;
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

.video-flow-section {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.video-flow-container {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
    padding: 20px;
}

.video-flow-step {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    min-width: 160px;
    max-width: 180px;
    text-align: center;
    height: 280px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.video-step-content {
}

.video-step-icon {
    font-size: 2.5em;
    color: #4a90e2;
    margin-bottom: 15px;
}

.video-step-title {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.1em;
}

.video-step-description {
    font-size: 0.9em;
    color: #7f8c8d;
    margin: 0;
}

.video-flow-arrow {
    font-size: 2em;
    color: #4a90e2;
    margin: 0 10px;
    display: flex;
    align-items: center;
}

.video-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

.video-container h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 1.8em;
}

.video-container p {
    color: #7f8c8d;
    margin-bottom: 30px;
    font-size: 1.1em;
}

.video-embed {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    margin-bottom: 20px;
}

.video-embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 10px;
}

/* Business Examples Section */
.business-examples-section {
    padding: 80px 0;
    background: white;
}

.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.example-card {
    background: linear-gradient(135deg, #4a90e2 0%, #7bb3f0 100%);
    color: white;
    padding: 30px;
    border-radius: 15px;
    position: relative;
}

.example-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.example-icon {
    font-size: 2em;
    margin-right: 15px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.example-description {
    font-size: 0.9em;
    opacity: 0.8;
}

.example-features-list {
    list-style: none;
    margin-bottom: 20px;
    padding: 0;
}

.template-download {
    background: rgba(255,255,255,0.2);
    border: 1px solid rgba(255,255,255,0.3);
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.9em;
    transition: all 0.3s ease;
}

.template-download:hover {
    background: rgba(255,255,255,0.3);
}

/* Comparison Section */
.comparison-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.comparison-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.comparison-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
    position: relative;
}

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

.comparison-card.recommended {
    border: 3px solid #4a90e2;
    transform: scale(1.05);
}

.recommended-badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: #4a90e2;
    color: white;
    padding: 5px 15px;
    border-radius: 15px;
    font-weight: bold;
    font-size: 0.9em;
}

.card-header {
    text-align: center;
    margin-bottom: 20px;
}

.card-icon {
    font-size: 3em;
    margin-bottom: 10px;
}

.card-icon.traditional { color: #95a5a6; }
.card-icon.crm { color: #74b9ff; }
.card-icon.ipo { color: #4a90e2; }

.card-title {
    font-size: 1.4em;
    font-weight: bold;
    margin-bottom: 10px;
}

.card-subtitle {
    color: #7f8c8d;
    font-size: 0.9em;
}

.comparison-items {
    list-style: none;
}

.comparison-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #ecf0f1;
}

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

.comparison-label {
    font-weight: bold;
    color: #2c3e50;
}

.comparison-value {
    color: #7f8c8d;
}

.comparison-value.high { color: #e74c3c; }
.comparison-value.medium { color: #f39c12; }
.comparison-value.low { color: #4a90e2; }

.comparison-advantage {
    text-align: center;
    margin-top: 40px;
}

.comparison-advantage-content {
    background: linear-gradient(135deg, #4da6ff 0%, #2e86de 100%);
    color: white;
    padding: 30px;
    border-radius: 15px;
    display: inline-block;
}

.comparison-advantage-content h3 {
    margin-bottom: 15px;
}

.comparison-advantage-content p {
    margin: 0;
}

/* Before/After Section */
.before-after-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #4a90e2 0%, #7bb3f0 100%);
    color: white;
}

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

.before-after-title {
    font-size: 2.5em;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.before-after-card {
    background: rgba(255,255,255,0.95);
    border-radius: 20px;
    padding: 30px;
    color: #333;
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
}

.before-after-card-title {
    text-align: center;
    margin-bottom: 30px;
    color: #2c3e50;
}

.before-after-comparison {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.before-after-column {
    text-align: center;
    flex: 1;
}

.before-after-status {
    margin-bottom: 15px;
}

.before-after-status.before {
    color: #e74c3c;
}

.before-after-status.after {
    color: #4a90e2;
}

.before-after-label {
    font-size: 2em;
    font-weight: bold;
    margin: 10px 0;
}

.before-after-label.before {
    color: #e74c3c;
}

.before-after-label.after {
    color: #4a90e2;
}

.before-after-arrow {
    font-size: 2em;
    color: #4a90e2;
    margin: 0 20px;
}

.before-after-list {
    text-align: left;
    margin-top: 15px;
    list-style: none;
    padding-left: 0;
}

.before-after-list.before {
    color: #e74c3c;
}

.before-after-list.after {
    color: #4a90e2;
}

.before-after-footer {
    text-align: center;
    margin-top: 20px;
    padding: 15px;
    background: #4a90e2;
    color: white;
    border-radius: 10px;
}

.persona-section {
    padding: 40px;
    background: rgba(255,255,255,0.95);
    border-radius: 20px;
    color: #333;
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
}

.persona-section-title {
    text-align: center;
    margin-bottom: 30px;
    color: #2c3e50;
}

.persona-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 10px;
}

.persona-tab {
    background: #ecf0f1;
    border: none;
    padding: 10px 20px;
    margin: 0 5px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9em;
}

.persona-tab.active {
    background: #4a90e2;
    color: white;
}

.persona-content {
    display: none;
}

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

.persona-header {
    text-align: center;
    margin-bottom: 20px;
}

.persona-icon {
    font-size: 3em;
    color: #4a90e2;
}

.persona-title {
    margin: 10px 0;
    color: #2c3e50;
}

.persona-challenge {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 15px;
}

.persona-solution {
    background: #e9f2f8;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 15px;
}

.persona-result {
    background: #4a90e2;
    color: white;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
}

.persona-label {
    color: #e74c3c;
}

.persona-solution .persona-label {
    color: #4a90e2;
}

/* Features Section */
.features-section {
    padding: 80px 0;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-card {
    background: linear-gradient(135deg, #4a90e2 0%, #7bb3f0 100%);
    color: white;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    transition: transform 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 50%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-icon {
    font-size: 3.5em;
    margin-bottom: 20px;
    position: relative;
    z-index: 2;
}

.feature-title {
    font-size: 1.5em;
    font-weight: bold;
    margin-bottom: 15px;
    position: relative;
    z-index: 2;
}

.feature-description {
    line-height: 1.7;
    position: relative;
    z-index: 2;
}

/* Implementation Steps Section */
.steps-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.steps-horizontal-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 50px;
    padding: 20px 0;
}

.step-horizontal {
    background: white;
    padding: 30px;
    height: 260px;
    border-radius: 15px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    min-width: 200px;
    text-align: center;
    position: relative;
}

.step-horizontal-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: #4a90e2;
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.step-horizontal-title {
    color: #4a90e2;
    margin: 20px 0 15px;
    font-size: 1.2em;
}

.step-horizontal-description {
    font-size: 0.9em;
    color: #666;
    line-height: 1.6;
}

.step-horizontal-arrow {
    font-size: 2em;
    color: #4a90e2;
    flex-shrink: 0;
}

.steps-conclusion {
    text-align: center;
    margin-top: 50px;
}

.steps-conclusion-content {
    background: linear-gradient(135deg, #4da6ff 0%, #2e86de 100%);
    color: white;
    padding: 30px;
    border-radius: 15px;
    display: inline-block;
}

.steps-conclusion-content h3 {
    margin-bottom: 15px;
}

.steps-conclusion-content p {
    margin: 0;
}

.steps-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.steps-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: #4a90e2;
    transform: translateX(-50%);
}

.step-item {
    position: relative;
    margin-bottom: 50px;
}

.step-item:nth-child(odd) .step-content {
    margin-right: 50%;
    padding-right: 40px;
    text-align: right;
}

.step-item:nth-child(even) .step-content {
    margin-left: 50%;
    padding-left: 40px;
    text-align: left;
}

.step-content {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

.step-number {
    position: absolute;
    left: 50%;
    top: 30px;
    transform: translateX(-50%);
    background: #4a90e2;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2em;
    flex-shrink: 0;
}

/* ROI Calculator */
.roi-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
}

.roi-calculator {
    background: rgba(255,255,255,0.95);
    border-radius: 20px;
    padding: 40px;
    color: #333;
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
}

.calc-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 8px;
    font-weight: bold;
    color: #2c3e50;
}

.form-group input, .form-group select {
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1em;
    transition: border-color 0.3s ease;
}

.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: #4a90e2;
}

.calc-button-container {
    text-align: center;
    margin-top: 20px;
}

.calc-button {
    background: linear-gradient(45deg, #4a90e2, #7bb3f0);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 50px;
    font-size: 1.2em;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.calc-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.4);
}

.roi-results {
    display: none;
    margin-top: 30px;
    padding: 30px;
    background: linear-gradient(135deg, #4a90e2 0%, #7bb3f0 100%);
    border-radius: 15px;
    color: white;
}

.roi-results-title {
    text-align: center;
    margin-bottom: 30px;
}

.roi-results-grid {
    grid-template-columns: repeat(5, 1fr);
    max-width: 100%;
    margin: 0 auto;
    gap: 15px;
}

.roi-results-footer {
    text-align: center;
    margin-top: 30px;
}

.roi-results-description {
    font-size: 1.1em;
    margin-bottom: 20px;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.result-item {
    text-align: center;
    padding: 20px;
    background: rgba(255,255,255,0.15);
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

.result-value {
    font-size: 2em;
    font-weight: bold;
    margin-bottom: 5px;
}

.result-label {
    font-size: 0.9em;
    opacity: 0.9;
}

/* Case Studies */
.cases-section {
    padding: 80px 0;
    background: white;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.case-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.case-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.case-icon {
    font-size: 2.5em;
    margin-right: 15px;
    border-radius: 50%;
    color: white;
    background: linear-gradient(135deg, #4a90e2 0%, #7bb3f0 100%);
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.case-title {
    font-size: 1.3em;
    font-weight: bold;
    color: #2c3e50;
}

.case-subtitle {
    color: #7f8c8d;
}

.case-metrics {
    display: flex;
    justify-content: space-between;
    margin: 20px 0;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.metric {
    text-align: center;
}

.metric-value {
    font-size: 1.4em;
    font-weight: bold;
    color: #4a90e2;
}

.metric-label {
    font-size: 0.9em;
    color: #7f8c8d;
}

.case-description {
    color: #555;
    line-height: 1.7;
}

/* FAQ Section */
.faq-section {
    padding: 80px 0;
    background: #f8f9fa;
}

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

.faq-item {
    background: white;
    margin-bottom: 20px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    overflow: hidden;
}

.faq-question {
    background: linear-gradient(135deg, #4a90e2 0%, #7bb3f0 100%);
    color: white;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question:hover {
    background: linear-gradient(135deg, #7bb3f0 0%, #4a90e2 100%);
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-answer.active {
    padding: 20px;
    max-height: 500px;
}

.faq-toggle {
    font-size: 1.2em;
    transition: transform 0.3s ease;
}

.faq-toggle.active {
    transform: rotate(180deg);
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #4a90e2 0%, #7bb3f0 100%);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5em;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.cta-content p {
    font-size: 1.3em;
    margin-bottom: 40px;
    opacity: 0.9;
}

.cta-main-offer {
    margin: 40px 0;
}

.cta-main-button {
    font-size: 1.4em;
    padding: 20px 40px;
    margin-bottom: 20px;
    display: inline-block;
}

.cta-offer-description {
    font-size: 1em;
    margin-bottom: 30px;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.cta-features {
    display: flex;
    justify-content: space-around;
    margin-top: 40px;
    flex-wrap: wrap;
    gap: 20px;
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: 10px;
}

.cta-feature-icon {
    font-size: 1.5em;
}

/* Footer */
footer {
    background: #2c3e50;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    margin-bottom: 20px;
    color: #4a90e2;
}

.footer-section p, .footer-section li {
    margin-bottom: 10px;
    opacity: 0.8;
}

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

.footer-section a {
    color: #4a90e2;
    text-decoration: none;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #34495e;
    opacity: 0.7;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .results-grid {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 12px !important;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px; /* スマホでの余白を減らす */
    }

    .hero-content, .definition-content, .before-after-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-text {
        text-align: center; /* スマホでは中央揃え */
    }

    .hero-title {
        font-size: 2.2em;
    }

    .hero-subtitle {
        font-size: 1.1em;
    }

    /* スマホでのhero-featuresの修正 */
    .hero-features {
        justify-content: center; /* 中央揃えに変更 */
        flex-direction: column; /* 縦並びに変更 */
        align-items: center; /* 中央揃え */
        width: 100%;
        max-width: 100%;
    }

    /* スマホでのhero-featureの修正 */
    .hero-feature {
        width: 100%;
        max-width: 100%;
        justify-content: flex-start;
        margin-bottom: 10px;
        font-size: 0.9em;
    }

    .hero-feature span {
        text-align: left;
        line-height: 1.4;
    }

    .calc-form {
        grid-template-columns: 1fr;
    }

    .results-grid {
        grid-template-columns: 1fr !important;
        gap: 10px !important;
    }

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

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

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    /* CTAボタンのスマホ対応 */
    .cta-primary,
    .cta-secondary {
        display: block;
        margin: 10px auto;
        max-width: 300px;
        text-align: center;
        font-size: 1.1em;
        padding: 12px 30px;
    }

    .steps-timeline::before {
        left: 30px;
    }

    .step-item:nth-child(odd) .step-content,
    .step-item:nth-child(even) .step-content {
        margin: 0;
        margin-left: 60px;
        padding: 30px;
        text-align: left;
    }

    .step-number {
        left: 30px;
    }

    .persona-tabs {
        flex-direction: column;
        align-items: center;
    }

    .persona-tab {
        width: 100%;
        max-width: 200px;
        text-align: center;
    }

    /* 横向きステップのモバイル対応 */
    .steps-section .container > div:nth-child(3) {
        flex-direction: column !important;
        align-items: center !important;
    }

    .steps-section .container > div:nth-child(3) > div[style*="font-size: 2em"] {
        transform: rotate(90deg);
        margin: 10px 0;
    }

    .step-horizontal {
        width: 100% !important;
        max-width: 300px !important;
        min-width: auto !important;
    }

    /* 動画セクションのモバイル対応 */
    .video-section h2 {
        font-size: 1.5em !important;
    }

    .video-section .container > div:nth-child(3) {
        grid-template-columns: 1fr !important;
        gap: 30px !important;
    }

    .video-section .container > div:nth-child(3) > div:first-child {
        padding-right: 0 !important;
        order: 2;
    }

    .video-section .container > div:nth-child(3) > div:last-child {
        order: 1;
    }

    /* フロー図のモバイル対応 */
    .video-section .container > div:last-child > div {
        flex-direction: column !important;
        align-items: center !important;
    }

    .video-section .container > div:last-child > div > div[style*="font-size: 2em"] {
        transform: rotate(90deg);
        margin: 15px 0 !important;
    }

    .video-section .container > div:last-child > div > div[style*="background: white"] {
        width: 100% !important;
        max-width: 280px !important;
        min-width: auto !important;
        margin-bottom: 10px !important;
    }

    /* IPO定義セクションのモバイル対応 */
    .ipo-definition-section .container > div:last-child {
        display: block !important;
        gap: 0 !important;
    }

    .ipo-definition-section .container > div:last-child > div:first-child {
        margin-bottom: 30px;
    }

    .ipo-definition-section .container > div:last-child > div:last-child {
        margin-top: 20px;
    }
}

@media (max-width: 600px) {
    .results-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 10px !important;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px; /* さらに余白を減らす */
    }

    .hero-title {
        font-size: 1.8em;
    }

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

    .results-grid {
        grid-template-columns: 1fr !important;
        max-width: 100% !important;
    }

    .case-metrics {
        flex-direction: column;
        gap: 15px;
    }

    /* hero-featureのさらなる調整 */
    .hero-feature {
        padding: 10px 15px;
        font-size: 0.85em;
    }

    .hero-feature i {
        font-size: 1em;
        margin-right: 8px;
    }
}

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

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
    margin-bottom: 10px;
}

.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);
}

/* Navigation Header */
.nav-header {
    background: white;
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    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;
}

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

.nav-logo a {
    text-decoration: none;
}
.nav-logo img {
    width: 80px;
}

.logo-badge {
    background: #4a90e2;
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: bold;
    font-size: 1.1em;
}

.service-name {
    color: #4a90e2;
    font-size: 1.2em;
    font-weight: 500;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

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

.nav-menu a:hover {
    color: #4a90e2;
}

.nav-menu a:hover::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background: #4a90e2;
}

.nav-cta1 {
    color: white !important;
    padding: 8px 16px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: bold;
    font-size: 0.85em;
    transition: all 0.3s ease;
    background: #FF7043
}

.nav-cta1:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    background: #FF7043
}

.nav-cta2 {
    color: white !important;
    padding: 8px 16px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: bold;
    font-size: 0.85em;
    transition: all 0.3s ease;
    background: #4FC3F7;
}

.nav-cta2:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    background: #4FC3F7;
}


/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5em;
    color: #333;
    cursor: pointer;
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    z-index: 1000;
}

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

.mobile-menu a {
    display: block;
    padding: 15px 20px;
    border-bottom: 1px solid #eee;
    color: #333;
    text-decoration: none;
}

.mobile-menu a:hover {
    background: #f8f9fa;
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-container {
        justify-content: space-between;
        padding: 0 15px; /* ナビゲーションの余白も調整 */
    }

    .fa-arrow-right {
        display: none;
    }
}

/* Scroll Progress Bar */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: linear-gradient(45deg, #4a90e2, #7bb3f0);
    z-index: 9999;
    transition: width 0.3s ease;
}

/* Knowledge Links Enhancement */
.knowledge-section {
    background: rgba(255,255,255,0.1);
    border-radius: 15px;
    padding: 20px;
    margin: 20px 0;
}

.knowledge-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

/*導入事例*/
.case-checklist {
    list-style: none;
    padding: 0;
    margin: 20px 0;
    background: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
}

.case-checklist li {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    font-size: 0.95em;
    color: #333;
}

.case-checklist i {
    color: #4a90e2;
    margin-right: 10px;
    font-size: 1.1em;
}

/* Pricing Plans Section */
.pricing-section {
    padding: 80px 0;
    background: white;
}

.pricing-title {
    color: #2c3e50;
}

.pricing-plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

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

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.pricing-card-free {
    border-color: #e0e0e0;
}

.pricing-card-paid {
    border-color: #4a90e2;
    border-width: 3px;
}

.pricing-recommended-badge {
    position: absolute;
    top: -12px;
    right: 30px;
    background: #4a90e2;
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9em;
}

.pricing-card-title {
    font-size: 1.5em;
    font-weight: bold;
    margin-bottom: 25px;
    color: #2c3e50;
}

.pricing-card-price {
    margin-bottom: 30px;
}

.pricing-price-large {
    font-size: 3em;
    font-weight: bold;
    color: #4a90e2;
    margin-bottom: 10px;
}

.pricing-price-period {
    font-size: 0.4em;
    color: #7f8c8d;
}

.pricing-price-annual {
    font-size: 0.9em;
    color: #7f8c8d;
    margin-top: 10px;
}

.pricing-features-list {
    list-style: none;
    padding: 0;
    margin-bottom: 30px;
    text-align: left;
}

.pricing-feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
    padding: 8px 0;
}

.pricing-feature-paid {
    background: #f8f9fa;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 8px;
}

.pricing-feature-icon {
    color: #4a90e2;
    margin-right: 12px;
    font-size: 1.1em;
    flex-shrink: 0;
}

.pricing-feature-item span {
    color: #333;
    line-height: 1.5;
}

.pricing-button {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    transition: all 0.3s ease;
    border: 2px solid;
}

.pricing-button-free {
    background: white;
    color: #4a90e2;
    border-color: #4a90e2;
}

.pricing-button-free:hover {
    background: #4a90e2;
    color: white;
}

.pricing-button-paid {
    background: #4a90e2;
    color: white;
    border-color: #4a90e2;
}

.pricing-button-paid:hover {
    background: #357abd;
    border-color: #357abd;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(74, 144, 226, 0.4);
}