/* ========================================
   リセット & ベーススタイル
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* カラーパレット */
    --primary-color: #FF6B35;
    --primary-dark: #E55A2B;
    --primary-light: #FF8555;
    --secondary-color: #004E89;
    --secondary-dark: #003D6B;
    --accent-color: #FFA500;
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --danger-color: #EF4444;
    
    /* グラデーション */
    --gradient-primary: linear-gradient(135deg, #FF6B35 0%, #FFA500 100%);
    --gradient-secondary: linear-gradient(135deg, #004E89 0%, #0077B6 100%);
    --gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    
    /* グレースケール */
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    /* フォント */
    --font-main: 'Noto Sans JP', sans-serif;
    --font-accent: 'Inter', sans-serif;
    
    /* スペーシング */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* シャドウ */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* トランジション */
    --transition-base: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    --transition-slow: all 0.5s ease;
    
    /* ボーダー半径 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--gray-800);
    line-height: 1.7;
    background-color: #fff;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   ヘッダー
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.75rem;
}

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

.nav a {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

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

.nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-base);
}

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

.cta-btn-small {
    background: var(--gradient-primary);
    color: white !important;
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
}

.cta-btn-small::after {
    display: none;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

/* ========================================
   ヒーローセクション
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-dark);
    opacity: 0.03;
    z-index: -1;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: var(--gradient-primary);
    border-radius: 50%;
    opacity: 0.1;
    filter: blur(100px);
}

.hero-content {
    text-align: center;
    animation: fadeInUp 1s ease;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #FFF5E6 0%, #FFE8CC 100%);
    border: 2px solid var(--accent-color);
    color: var(--primary-dark);
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 2rem;
    animation: pulse 2s infinite;
}

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

.hero-badge i {
    color: var(--accent-color);
    font-size: 1.2rem;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--gray-900);
}

.highlight {
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

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

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--gray-600);
    margin-bottom: 3rem;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-number::after {
    content: '%';
    font-size: 0.6em;
}

.stat-item:nth-child(2) .stat-number::after {
    content: '円';
}

.stat-item:last-child .stat-number::after {
    content: '個';
}

.stat-label {
    font-size: 0.95rem;
    color: var(--gray-600);
    font-weight: 500;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1.1rem;
    text-decoration: none;
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
    font-family: var(--font-main);
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

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

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

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.2rem;
}

.hero-notes {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.hero-notes p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-600);
    font-size: 0.95rem;
}

.hero-notes i {
    color: var(--success-color);
    font-size: 1.1rem;
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-400);
    font-size: 0.85rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translate(-50%, 0);
    }
    50% {
        transform: translate(-50%, 10px);
    }
}

.scroll-line {
    width: 2px;
    height: 30px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

/* ========================================
   セクション共通スタイル
   ======================================== */
section {
    padding: var(--spacing-xl) 0;
}

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

.section-badge {
    display: inline-block;
    background: var(--gradient-primary);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--gray-900);
}

.section-description {
    font-size: 1.1rem;
    color: var(--gray-600);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ========================================
   課題セクション
   ======================================== */
.problems {
    background: var(--gray-50);
}

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

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

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

.problem-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.problem-icon i {
    font-size: 2rem;
    color: white;
}

.problem-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--gray-900);
}

.problem-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

.problems-conclusion {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, #FFF5E6 0%, #FFE8CC 100%);
    border-radius: var(--radius-xl);
    border: 2px solid var(--accent-color);
}

.conclusion-text {
    font-size: 1.3rem;
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.conclusion-text i {
    font-size: 1.8rem;
    color: var(--accent-color);
}

/* ========================================
   ソリューションセクション
   ======================================== */
.solution-visual {
    position: relative;
    max-width: 800px;
    margin: 4rem auto;
    padding: 4rem 0;
}

.solution-center {
    position: relative;
    z-index: 10;
}

.solution-logo {
    width: 200px;
    height: 200px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: 0 20px 40px rgba(255, 107, 53, 0.3);
    animation: rotate 20s linear infinite;
}

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

.solution-logo i {
    font-size: 4rem;
    color: white;
}

.solution-logo span {
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
    text-align: center;
    line-height: 1.3;
    margin-top: 0.5rem;
}

.solution-connections {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
}

.connection-item {
    position: absolute;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    color: var(--gray-700);
    animation: float 3s ease-in-out infinite;
    animation-delay: var(--delay);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

.connection-item:nth-child(1) {
    top: 10%;
    left: 5%;
}

.connection-item:nth-child(2) {
    top: 10%;
    right: 5%;
}

.connection-item:nth-child(3) {
    top: 45%;
    left: -5%;
}

.connection-item:nth-child(4) {
    top: 45%;
    right: -5%;
}

.connection-item:nth-child(5) {
    bottom: 10%;
    left: 10%;
}

.connection-item:nth-child(6) {
    bottom: 10%;
    right: 10%;
}

.connection-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.solution-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.solution-feature {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.solution-feature i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.solution-feature h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.solution-feature p {
    color: var(--gray-600);
}

/* ========================================
   機能セクション
   ======================================== */
.features {
    background: var(--gray-50);
}

.feature-module {
    margin-bottom: 3rem;
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
}

.feature-module:hover {
    box-shadow: var(--shadow-xl);
}

.module-header {
    background: var(--gradient-primary);
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.module-number {
    font-size: 2rem;
    font-weight: 800;
    color: white;
    opacity: 0.8;
}

.module-header h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
}

.module-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    padding: 3rem;
    align-items: center;
}

.module-content.reverse {
    grid-template-columns: 2fr 1fr;
}

.module-content.reverse .module-image {
    order: 2;
}

.module-image {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-secondary);
    border-radius: var(--radius-xl);
    aspect-ratio: 1;
    box-shadow: var(--shadow-lg);
}

.module-image i {
    font-size: 6rem;
    color: white;
    opacity: 0.9;
}

.module-list {
    list-style: none;
    margin-bottom: 1.5rem;
}

.module-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 1.05rem;
    line-height: 1.6;
}

.module-list i {
    color: var(--success-color);
    font-size: 1.2rem;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.module-benefit {
    background: linear-gradient(135deg, #E6F7F1 0%, #D1F2EB 100%);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--success-color);
    color: var(--gray-700);
}

.module-benefit strong {
    color: var(--success-color);
}

/* ========================================
   IT補助金セクション
   ======================================== */
.subsidy {
    background: var(--gradient-dark);
    color: white;
}

.subsidy .section-title,
.subsidy .section-description {
    color: white;
}

.subsidy-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.subsidy-points h3 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: white;
}

.subsidy-point {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.point-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.point-icon i {
    font-size: 1.8rem;
    color: white;
}

.point-content h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: white;
}

.point-content p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    line-height: 1.6;
}

.subsidy-calc {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.subsidy-calc h3 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: var(--gray-900);
}

.calc-box {
    background: var(--gray-50);
    padding: 2rem;
    border-radius: var(--radius-lg);
}

.calc-item {
    margin-bottom: 1.5rem;
}

.calc-item label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--gray-700);
}

.calc-item select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-main);
    background: white;
    cursor: pointer;
    transition: var(--transition-fast);
}

.calc-item select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.calc-result {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin-top: 2rem;
}

.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-200);
    font-size: 1.1rem;
}

.result-row:last-child {
    border-bottom: none;
}

.subsidy-amount {
    color: var(--success-color);
    font-weight: 700;
}

.final-cost {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary-color);
    padding-top: 1rem;
    margin-top: 0.5rem;
    border-top: 2px solid var(--primary-color);
}

.calc-note {
    margin-top: 1.5rem;
    padding: 1rem;
    background: linear-gradient(135deg, #E6F7F1 0%, #D1F2EB 100%);
    border-radius: var(--radius-md);
    color: var(--gray-700);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.calc-note i {
    color: var(--success-color);
    font-size: 1.2rem;
}

/* ========================================
   料金プランセクション
   ======================================== */
.pricing-toggle {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.toggle-btn {
    padding: 0.75rem 2rem;
    border: 2px solid var(--primary-color);
    background: white;
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    font-family: var(--font-main);
}

.toggle-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.pricing-card {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 2.5rem;
    transition: var(--transition-base);
    position: relative;
    border: 2px solid transparent;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.recommended {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.recommended-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pricing-header {
    text-align: center;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: 2rem;
}

.pricing-header h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--gray-900);
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 1rem;
}

.currency {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-600);
}

.amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    margin: 0 0.25rem;
}

.period {
    font-size: 1.2rem;
    color: var(--gray-600);
}

.pricing-subsidy {
    color: var(--success-color);
    font-weight: 600;
    font-size: 0.95rem;
}

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

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
    font-size: 1rem;
}

.pricing-features i {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.pricing-features .fa-check {
    color: var(--success-color);
}

.pricing-features .unavailable {
    color: var(--gray-400);
}

.pricing-features .unavailable i {
    color: var(--gray-300);
}

.pricing-btn {
    display: block;
    width: 100%;
    padding: 1rem;
    background: var(--gradient-primary);
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition-base);
}

.pricing-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 107, 53, 0.3);
}

.pricing-note {
    text-align: center;
    color: var(--gray-500);
    font-size: 0.9rem;
    margin-top: 1rem;
}

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

.option-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.option-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.option-card h4 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.option-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ========================================
   導入フローセクション
   ======================================== */
.flow {
    background: var(--gray-50);
}

.flow-timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.flow-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-primary);
    transform: translateX(-50%);
}

.flow-step {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
    position: relative;
}

.flow-step:nth-child(even) {
    direction: rtl;
}

.flow-step:nth-child(even) .step-content {
    direction: ltr;
}

.step-number {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 0.95rem;
    box-shadow: 0 0 0 10px white, 0 0 0 12px var(--primary-color);
    z-index: 10;
}

.step-content {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
}

.step-content:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.step-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.step-content p {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.step-duration {
    display: inline-block;
    background: var(--gray-100);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-700);
}

.flow-timeline-total {
    text-align: center;
    padding: 2rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-xl);
    font-size: 1.3rem;
    font-weight: 700;
    margin-top: 2rem;
}

/* ========================================
   競合優位性セクション
   ======================================== */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.advantage-card {
    text-align: center;
    padding: 2.5rem 2rem;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
}

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.advantage-icon {
    width: 90px;
    height: 90px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.advantage-icon i {
    font-size: 3rem;
    color: white;
}

.advantage-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--gray-900);
    line-height: 1.4;
}

.advantage-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ========================================
   FAQセクション
   ======================================== */
.faq {
    background: var(--gray-50);
}

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

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

.faq-question {
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    transition: var(--transition-base);
    font-weight: 600;
    color: var(--gray-800);
    font-size: 1.1rem;
}

.faq-question:hover {
    background: var(--gray-50);
}

.faq-question > i:first-child {
    color: var(--primary-color);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.faq-question > span {
    flex: 1;
}

.faq-question > i:last-child {
    color: var(--gray-400);
    transition: var(--transition-base);
}

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

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

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

.faq-answer p {
    padding: 0 2rem 2rem;
    color: var(--gray-600);
    line-height: 1.8;
}

/* ========================================
   CTAセクション
   ======================================== */
.cta {
    background: var(--gradient-dark);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta-content > p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 3rem;
}

.cta-benefits {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.cta-benefit {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.cta-benefit i {
    font-size: 1.5rem;
    color: var(--accent-color);
}

.contact-form {
    max-width: 700px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    text-align: left;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

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

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--gray-700);
}

.required {
    color: var(--danger-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-main);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
}

.form-privacy {
    text-align: center;
    color: var(--gray-600);
    font-size: 0.9rem;
    margin-top: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.form-privacy i {
    color: var(--success-color);
}

/* ========================================
   フッター
   ======================================== */
.footer {
    background: var(--gray-900);
    color: rgba(255, 255, 255, 0.8);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.footer-logo i {
    font-size: 1.75rem;
}

.footer-description {
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.7);
}

.footer-section h4 {
    color: white;
    font-weight: 700;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-section a:hover {
    color: var(--primary-color);
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-contact i {
    color: var(--primary-color);
    width: 20px;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

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

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition-base);
}

.footer-links a:hover {
    color: white;
    text-decoration: underline;
}

/* ========================================
   ページトップボタン
   ======================================== */
.page-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    z-index: 999;
}

.page-top.visible {
    opacity: 1;
    visibility: visible;
}

.page-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.page-top i {
    font-size: 1.5rem;
}

/* ========================================
   レスポンシブデザイン
   ======================================== */
@media (max-width: 1024px) {
    .solution-connections {
        width: 120%;
        height: 120%;
    }
    
    .connection-item {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    .subsidy-content,
    .module-content {
        grid-template-columns: 1fr;
    }
    
    .module-content.reverse {
        grid-template-columns: 1fr;
    }
    
    .module-content.reverse .module-image {
        order: 0;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-base);
    }
    
    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero-stats {
        gap: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .problems-grid {
        grid-template-columns: 1fr;
    }
    
    .solution-connections {
        position: static;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
        margin-top: 3rem;
        transform: none;
    }
    
    .connection-item {
        position: static;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.recommended {
        transform: scale(1);
    }
    
    .flow-timeline::before {
        left: 30px;
    }
    
    .flow-step {
        grid-template-columns: 1fr;
        padding-left: 80px;
    }
    
    .flow-step:nth-child(even) {
        direction: ltr;
    }
    
    .step-number {
        left: 30px;
        transform: translate(-50%, -50%);
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-md: 1rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }
    
    .hero {
        padding: 6rem 0 2rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .hero-notes {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    section {
        padding: var(--spacing-lg) 0;
    }
    
    .section-header {
        margin-bottom: 2rem;
    }
    
    .module-content {
        padding: 1.5rem;
    }
    
    .module-image i {
        font-size: 4rem;
    }
    
    .contact-form {
        padding: 2rem 1.5rem;
    }
}