/* リセット & ベース */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #0f4c81;
    --color-primary-dark: #0a3458;
    --color-primary-light: #1c669f;
    --color-link-strong: #0a3458;
    --color-secondary: #5d748f;
    --color-accent: #0ea5a4;
    --color-accent-soft: #7dd3fc;
    --color-text: #10243d;
    --color-text-light: #4b6179;
    --color-bg: #ffffff;
    --color-bg-light: #f4f8fc;
    --color-bg-dark: #0f172a;
    --color-border: #d9e4ef;
    --color-success: #10b981;
    --color-error: #ef4444;

    --font-family: 'Plus Jakarta Sans', 'Noto Sans JP', sans-serif;
    --font-family-display: 'Sora', 'Noto Sans JP', sans-serif;
    --font-family-jp: 'Noto Sans JP', sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    --border-radius: 0.75rem;
    --border-radius-lg: 1.25rem;
    --border-radius-xl: 2rem;
    
    --shadow-sm: 0 2px 8px rgba(15, 76, 129, 0.06);
    --shadow-md: 0 8px 18px rgba(15, 76, 129, 0.11);
    --shadow-lg: 0 14px 28px rgba(15, 76, 129, 0.13);
    --shadow-xl: 0 22px 44px rgba(15, 76, 129, 0.16);
    --shadow-2xl: 0 34px 64px rgba(10, 52, 88, 0.2);
}

body {
    font-family: var(--font-family);
    color: var(--color-text);
    line-height: 1.6;
    background:
        radial-gradient(1200px 450px at -10% -5%, rgba(14, 165, 164, 0.08), transparent 60%),
        radial-gradient(900px 360px at 110% 12%, rgba(125, 211, 252, 0.15), transparent 62%),
        var(--color-bg);
    letter-spacing: 0.01em;
}

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

/* ヘッダー */
.header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.84);
    backdrop-filter: blur(14px) saturate(130%);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out, background 0.3s ease-in-out;
    transform: translateY(0);
}

.header.hidden {
    transform: translateY(-100%);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-md);
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: transform 0.2s;
}

.logo-link:hover {
    transform: scale(1.05);
}

.logo-img {
    height: 40px;
    width: auto;
}

@media (max-width: 768px) {
    .logo-img {
        height: 32px;
    }
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s, opacity 0.2s;
}

.nav-link:hover {
    color: var(--color-primary);
    opacity: 1;
}

.nav-link-login {
    color: var(--color-text-light);
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown > summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.nav-dropdown > summary::-webkit-details-marker {
    display: none;
}

.nav-dropdown > summary::after {
    content: '';
    width: 0.42rem;
    height: 0.42rem;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg) translateY(-0.08rem);
    opacity: 0.65;
    transition: transform 0.2s ease;
}

.nav-dropdown[open] > summary::after {
    transform: rotate(225deg) translateY(-0.08rem);
}

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 0.65rem);
    left: 0;
    min-width: 17.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.5rem;
    border-radius: 0.8rem;
    border: 1px solid rgba(15, 76, 129, 0.16);
    background: #fff;
    box-shadow: 0 12px 30px rgba(15, 76, 129, 0.14);
    z-index: 1200;
}

.nav-dropdown-link {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.15rem;
    padding: 0.6rem 0.7rem;
    border-radius: 0.6rem;
    color: var(--color-text);
    text-decoration: none;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-dropdown-label {
    font-weight: 600;
    line-height: 1.35;
}

.nav-dropdown-desc {
    font-size: 0.76rem;
    line-height: 1.35;
    color: var(--color-text-light);
}

.nav-dropdown-link:hover {
    color: var(--color-primary);
    background: #f3f8ff;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all 0.3s;
    transform-origin: center;
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* ボタン */
.btn {
    display: inline-block;
    padding: 0.78rem 1.45rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 700;
    text-align: center;
    transition: all 0.24s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.88);
    color: var(--color-primary);
    border: 1px solid rgba(15, 76, 129, 0.22);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.98);
    border-color: rgba(15, 76, 129, 0.34);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.95);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* ヒーローセクション */
.hero {
    position: relative;
    padding: var(--spacing-3xl) 0;
    overflow: hidden;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-background {
    position: absolute;
    top: -50%;
    left: 0;
    right: 0;
    bottom: -50%;
    z-index: 0;
    will-change: transform;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(130deg, #f7fbff 0%, #edf6ff 44%, #e8f7f6 100%);
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0%, 100% {
        background: linear-gradient(130deg, #f7fbff 0%, #edf6ff 44%, #e8f7f6 100%);
    }
    50% {
        background: linear-gradient(130deg, #eff7ff 0%, #e4f4ff 50%, #dcf7f4 100%);
    }
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(15, 76, 129, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15, 76, 129, 0.05) 1px, transparent 1px),
        radial-gradient(circle at 20% 50%, rgba(14, 165, 164, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(15, 76, 129, 0.1) 0%, transparent 48%);
    background-size: 34px 34px, 34px 34px, auto, auto;
    animation: patternMove 20s ease infinite;
}

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

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-logo-wrapper {
    margin-bottom: var(--spacing-lg);
    animation: fadeInDown 0.8s ease;
}

.hero-logo {
    width: 80px;
    height: 80px;
    filter: drop-shadow(0 8px 20px rgba(15, 76, 129, 0.24));
    animation: float 3s ease-in-out infinite;
}

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-family: var(--font-family-display);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    letter-spacing: -0.015em;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 55%, #059669 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

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

.hero-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    line-height: 1.9;
    max-width: 60ch;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.btn-arrow {
    margin-left: 0.5rem;
    transition: transform 0.3s;
}

.btn-primary:hover .btn-arrow {
    transform: translateX(4px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(12px);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(15, 76, 129, 0.16);
    transition: all 0.3s;
    animation: fadeInUp 0.8s ease 0.8s both;
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    background: rgba(255, 255, 255, 0.95);
}

.stat-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
    filter: grayscale(0.2);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--color-text-light);
    font-size: 0.875rem;
    font-weight: 500;
}

.hero-visual {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-3xl);
    flex-wrap: wrap;
}

.hero-card {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(10px) saturate(140%);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    text-align: center;
    min-width: 150px;
    transition: all 0.3s;
    animation: fadeInUp 1s ease 1s both;
    border: 1px solid rgba(15, 76, 129, 0.16);
}

.hero-card:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: var(--shadow-2xl);
}

.hero-card-1 {
    animation-delay: 1s;
}

.hero-card-2 {
    animation-delay: 1.2s;
}

.hero-card-3 {
    animation-delay: 1.4s;
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.card-text {
    font-size: 0.875rem;
    color: var(--color-text);
    font-weight: 500;
}

/* セクション共通 */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: 2.5rem;
    font-family: var(--font-family-display);
    font-weight: 800;
    letter-spacing: -0.01em;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.section-description {
    font-size: 1.125rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* 機能セクション */
.features {
    padding: var(--spacing-2xl) 0;
    background:
        radial-gradient(circle at 15% 12%, rgba(14, 165, 164, 0.06), transparent 42%),
        var(--color-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    padding: var(--spacing-xl);
    background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(15, 76, 129, 0.14);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent), #059669);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: rgba(15, 76, 129, 0.35);
}

.feature-icon-wrapper {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(15, 76, 129, 0.1), rgba(14, 165, 164, 0.12));
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-md);
    transition: all 0.3s;
}

.feature-card:hover .feature-icon-wrapper {
    transform: scale(1.1) rotate(5deg);
    background: linear-gradient(135deg, rgba(15, 76, 129, 0.16), rgba(14, 165, 164, 0.16));
}

.feature-icon {
    font-size: 2.5rem;
    filter: grayscale(0.1);
}

.feature-title {
    font-size: 1.5rem;
    font-family: var(--font-family-display);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.feature-description {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* 料金セクション */
.pricing {
    padding: var(--spacing-2xl) 0;
    background:
        linear-gradient(180deg, #f6fbff 0%, #f2f8fd 100%);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-campaign {
    max-width: 760px;
    margin: 0 auto var(--spacing-lg);
    text-align: center;
    font-weight: 700;
    color: #0f4c81;
    background: linear-gradient(135deg, rgba(15, 76, 129, 0.08), rgba(14, 165, 164, 0.09));
    border: 1px solid rgba(15, 76, 129, 0.2);
    border-radius: 999px;
    padding: 0.55rem 1rem;
}

.pricing-card {
    position: relative;
    padding: var(--spacing-xl);
    background: linear-gradient(180deg, #ffffff, #fbfdff);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s;
    border: 1px solid rgba(15, 76, 129, 0.14);
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.pricing-card-featured {
    border: 1px solid rgba(15, 76, 129, 0.28);
    transform: scale(1.05);
    box-shadow: var(--shadow-2xl);
    background:
        linear-gradient(#ffffff, #ffffff) padding-box,
        linear-gradient(135deg, rgba(15, 76, 129, 0.45), rgba(14, 165, 164, 0.45)) border-box;
    border: 1px solid transparent;
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
    padding: 0.25rem 1rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.pricing-name {
    font-size: 1.5rem;
    font-family: var(--font-family-display);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    flex-wrap: nowrap;
}

.price-currency {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
}

.price-amount {
    font-size: 3rem;
    font-family: var(--font-family-display);
    font-weight: 800;
    color: var(--color-text);
}

.price-period {
    font-size: 0.9rem;
    color: var(--color-text-light);
    white-space: nowrap;
}

.pricing-period {
    color: var(--color-text-light);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

.pricing-subtitle {
    color: var(--color-text-light);
    font-size: 0.875rem;
    font-weight: 500;
    margin-top: var(--spacing-xs);
}

.pricing-note {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.pricing-note p {
    color: var(--color-text-light);
    font-size: 0.875rem;
    margin: var(--spacing-xs) 0;
}

.pricing-note-highlight {
    color: #0f4c81;
    font-weight: 700;
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.pricing-features li {
    padding: var(--spacing-sm) 0;
    color: var(--color-text);
    border-bottom: 1px dashed rgba(15, 76, 129, 0.18);
}

.pricing-features li:last-child {
    border-bottom: none;
}

/* 概要セクション */
.about {
    padding: var(--spacing-2xl) 0;
    background:
        radial-gradient(circle at 80% 20%, rgba(125, 211, 252, 0.12), transparent 46%),
        var(--color-bg);
}

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

.about-text h3 {
    font-size: 1.5rem;
    font-family: var(--font-family-display);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-lg);
    color: var(--color-text);
}

.about-text h3:first-child {
    margin-top: 0;
}

.about-intro {
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    font-size: 1.0625rem;
}

.about-list {
    list-style: none;
    margin-left: var(--spacing-md);
}

.about-list li {
    padding: var(--spacing-sm) 0;
    color: var(--color-text-light);
    position: relative;
    padding-left: var(--spacing-md);
}

.about-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* CTAセクション */
.cta {
    padding: var(--spacing-2xl) 0;
    background:
        radial-gradient(circle at 12% 18%, rgba(255, 255, 255, 0.2), transparent 45%),
        radial-gradient(circle at 86% 72%, rgba(255, 255, 255, 0.16), transparent 40%),
        linear-gradient(135deg, #0d3e68 0%, #0f5f9e 52%, #0b8f8f 100%);
    color: white;
}

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

.cta-title {
    font-size: 2.5rem;
    font-family: var(--font-family-display);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.cta-description {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
}

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

.cta .btn-primary:hover {
    background: var(--color-bg-light);
}

/* フッター */
.footer {
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    background:
        linear-gradient(180deg, #0f2035 0%, #0b1728 100%);
    color: white;
}

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

.footer-section {
    min-width: 0;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    margin-bottom: var(--spacing-md);
}

.footer-logo-img {
    height: 40px;
    width: auto;
    filter: brightness(1) invert(1);
    opacity: 0.9;
    transition: opacity 0.2s;
}

.footer-logo-img:hover {
    opacity: 1;
}

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

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links-guides li,
.footer-links-business li {
    margin-bottom: 0.35rem;
}

.footer-links-guides a,
.footer-links-business a {
    display: block;
    line-height: 1.45;
    overflow-wrap: anywhere;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.86);
    text-decoration: none;
    transition: color 0.2s, text-decoration-color 0.2s;
}

.footer-links a:visited {
    color: rgba(255, 255, 255, 0.86);
}

.footer-links a:hover,
.footer-links a:focus-visible {
    color: white;
    text-decoration: underline;
    text-underline-offset: 0.18em;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* モバイルメニューオーバーレイ */
.nav-overlay {
    display: none;
}

/* レスポンシブ */
@media (max-width: 768px) {
    body {
        overflow-x: hidden;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .nav-overlay {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
        z-index: 999;
    }

    .nav-overlay.active {
        opacity: 1;
        visibility: visible;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: white;
        width: 100%;
        gap: var(--spacing-sm);
        padding: var(--spacing-md) var(--spacing-sm) calc(var(--spacing-lg) + env(safe-area-inset-bottom));
        box-shadow: var(--shadow-lg);
        transition: left 0.3s;
        z-index: 1000;
        max-height: calc(100vh - 70px);
        overflow-y: auto;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu .nav-link,
    .nav-menu .btn {
        width: 100%;
        min-height: 48px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: var(--border-radius);
    }

    .nav-menu .nav-link {
        padding: 0.82rem 1rem;
        border: 1px solid rgba(15, 76, 129, 0.16);
        background: #f7fbff;
    }

    .nav-menu .btn {
        min-height: 52px;
    }

    .nav-dropdown {
        width: 100%;
    }

    .nav-menu .nav-dropdown > .nav-link {
        justify-content: center;
    }

    .nav-dropdown-menu {
        position: static;
        min-width: auto;
        box-shadow: none;
        border: none;
        background: transparent;
        padding: var(--spacing-xs) 0 0;
    }

    .nav-dropdown-link {
        width: 100%;
        min-height: 46px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: var(--border-radius);
        border: 1px solid rgba(15, 76, 129, 0.12);
        background: white;
        text-align: center;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        min-height: auto;
        padding: var(--spacing-xl) 0 var(--spacing-lg);
    }

    .hero-logo {
        width: 60px;
        height: 60px;
    }

    .hero-visual {
        display: none;
    }

    .hero-card {
        min-width: 120px;
        padding: var(--spacing-md);
    }

    .hero-description br,
    .section-description br,
    .cta-description br {
        display: none;
    }

    .hero-description {
        line-height: 1.7;
        margin-bottom: var(--spacing-lg);
    }

    .hero-stats {
        gap: var(--spacing-sm);
    }

    .stat-item {
        padding: 0.75rem;
        min-width: 88px;
    }

    .stat-number {
        font-size: 1.35rem;
    }

    .section-header {
        margin-bottom: var(--spacing-lg);
    }

    .section-title {
        font-size: 1.75rem;
    }

    .section-description {
        font-size: 1rem;
    }

    .features,
    .pricing,
    .about,
    .cta,
    .contact {
        padding: var(--spacing-xl) 0;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .feature-card {
        padding: var(--spacing-md);
    }

    .feature-icon-wrapper {
        width: 64px;
        height: 64px;
        margin-bottom: var(--spacing-sm);
    }

    .feature-title {
        font-size: 1.2rem;
    }

    .pricing-grid {
        display: flex;
        grid-template-columns: none;
        gap: var(--spacing-sm);
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        padding: 0 0 var(--spacing-sm);
    }

    .pricing-grid::-webkit-scrollbar {
        height: 6px;
    }

    .pricing-grid::-webkit-scrollbar-thumb {
        background: rgba(15, 76, 129, 0.28);
        border-radius: 999px;
    }

    .pricing-card {
        flex: 0 0 min(86vw, 320px);
        scroll-snap-align: start;
        padding: var(--spacing-md);
        margin: 0;
    }

    .pricing-card-featured {
        transform: none !important;
    }

    .hero-cta {
        flex-direction: column;
        margin-top: var(--spacing-md);
    }

    .pricing-name {
        font-size: 1.25rem;
    }

    .price-amount {
        font-size: 2.2rem;
    }

    .pricing-features li {
        padding: 0.55rem 0;
        font-size: 0.92rem;
    }

    .about-intro,
    .about-list li,
    .cta-description {
        font-size: 0.98rem;
    }

    .contact-form-wrapper {
        padding: var(--spacing-md);
    }

}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .price-amount {
        font-size: 2rem;
    }

    .price-period {
        font-size: 0.78rem;
    }
}

/* お問い合わせセクション */
.contact {
    padding: var(--spacing-2xl) 0;
    background:
        radial-gradient(circle at 15% 10%, rgba(14, 165, 164, 0.08), transparent 45%),
        var(--color-bg-light);
}

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

.contact-form-wrapper {
    background: linear-gradient(180deg, #ffffff, #fbfdff);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(15, 76, 129, 0.14);
}

/* フォーム要素 */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-label {
    font-weight: 500;
    color: var(--color-text);
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.form-label .required {
    color: var(--color-error);
    margin-left: 0.25rem;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-size: 1rem;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(15, 76, 129, 0.12);
    background-color: #ffffff;
}

.form-input.error,
.form-textarea.error {
    border-color: var(--color-error);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-char-count {
    text-align: right;
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-top: 0.25rem;
}

.form-error {
    color: var(--color-error);
    font-size: 0.875rem;
    display: none;
    margin-top: 0.25rem;
}

.form-message {
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
}

.form-message-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.form-message-error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--color-error);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* ローディングスピナー */
.spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-right: 0.5rem;
}

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

.btn-loading {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* レスポンシブ: お問い合わせフォーム */
@media (max-width: 768px) {
    .contact-form-wrapper {
        padding: var(--spacing-md);
    }
    
    .contact {
        padding: var(--spacing-xl) 0;
    }
}

/* Cookie同意バナー（縦幅コンパクト） */
/* PC: 右下フローティングカード */
.cookie-consent-banner {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    left: auto;
    width: 100%;
    max-width: 380px;
    min-width: 300px;
    background: white;
    box-shadow: 0 4px 24px rgba(31, 58, 95, 0.18);
    z-index: 10000;
    padding: 0.75rem 1rem;
    transform: translateX(calc(100% + 2rem));
    transition: transform 0.3s ease-in-out;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    max-height: 90vh;
    overflow-y: auto;
}

.cookie-consent-close {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    width: 1.75rem;
    height: 1.75rem;
    border: none;
    background: transparent;
    color: var(--color-text-light);
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s;
    z-index: 10001;
    padding: 0;
}

.cookie-consent-close:hover {
    background: var(--color-bg-light);
    color: var(--color-text);
    transform: scale(1.1);
}

.cookie-consent-close:active {
    transform: scale(0.95);
}

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

.cookie-consent-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.cookie-consent-text {
    flex: 1;
}

.cookie-consent-text h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 0.25rem 0;
}

.cookie-consent-text p {
    font-size: 0.8125rem;
    line-height: 1.45;
    color: var(--color-text-light);
    margin: 0;
}

.cookie-consent-text a {
    color: var(--color-primary);
    text-decoration: underline;
    transition: color 0.2s;
}

.cookie-consent-text a:hover {
    color: var(--color-primary-light);
}

.cookie-consent-options {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.5rem 0.625rem;
    background: var(--color-bg-light);
    border-radius: var(--border-radius);
}

.cookie-consent-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.375rem;
    cursor: pointer;
    font-size: 0.8125rem;
    color: var(--color-text);
    user-select: none;
    line-height: 1.4;
}

.cookie-consent-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--color-primary);
    margin-top: 0.1rem;
    flex-shrink: 0;
}

.cookie-consent-checkbox span {
    flex: 1;
}

.cookie-consent-checkbox strong {
    color: var(--color-text);
    font-weight: 600;
}

.cookie-consent-buttons {
    display: flex;
    gap: 0.375rem;
    flex-wrap: wrap;
}

.btn-cookie-accept-all,
.btn-cookie-accept-selected,
.btn-cookie-reject {
    padding: 0.375rem 0.625rem;
    border-radius: var(--border-radius);
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    font-family: var(--font-family);
}

.btn-cookie-accept-all {
    background: var(--color-primary);
    color: white;
}

.btn-cookie-accept-all:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-cookie-accept-selected {
    background: var(--color-accent);
    color: white;
}

.btn-cookie-accept-selected:hover {
    background: #2563eb;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-cookie-reject {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-cookie-reject:hover {
    background: var(--color-bg-light);
    border-color: var(--color-text-light);
}

/* レスポンシブ: Cookie同意バナー（モバイルは画面下部フル幅） */
@media (max-width: 768px) {
    .cookie-consent-banner {
        bottom: 0;
        right: 0;
        left: 0;
        width: 100%;
        max-width: none;
        min-width: 0;
        padding: 0.5rem 0.75rem;
        max-height: 30vh;
        transform: translateY(100%);
        border: none;
        border-top: 1px solid var(--color-border);
        border-radius: 0;
        box-shadow: 0 -4px 20px rgba(31, 58, 95, 0.15);
    }

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

    .cookie-consent-close {
        top: 0.5rem;
        right: 0.5rem;
        width: 1.75rem;
        height: 1.75rem;
        font-size: 1.25rem;
    }

    .cookie-consent-content {
        gap: 0.375rem;
    }

    .cookie-consent-text {
        margin-bottom: 0.25rem;
    }

    .cookie-consent-text h3 {
        font-size: 0.875rem;
        margin-bottom: 0.25rem;
        line-height: 1.3;
    }

    .cookie-consent-text p {
        font-size: 0.75rem;
        line-height: 1.4;
        margin: 0;
    }

    .cookie-consent-options {
        padding: 0.375rem 0.5rem;
        gap: 0.25rem;
        margin: 0.25rem 0;
    }

    .cookie-consent-checkbox {
        font-size: 0.75rem;
        gap: 0.375rem;
        line-height: 1.4;
    }

    .cookie-consent-checkbox input[type="checkbox"] {
        width: 14px;
        height: 14px;
        margin-top: 0.1rem;
    }

    .cookie-consent-checkbox strong {
        font-size: 0.75rem;
    }

    .cookie-consent-buttons {
        flex-direction: row;
        gap: 0.375rem;
        margin-top: 0.375rem;
        flex-wrap: wrap;
    }

    .btn-cookie-accept-all,
    .btn-cookie-accept-selected,
    .btn-cookie-reject {
        flex: 1;
        min-width: calc(33.333% - 0.25rem);
        padding: 0.375rem 0.5rem;
        font-size: 0.75rem;
    }
}

@media (max-width: 768px) {
    body .docs-page {
        padding: var(--spacing-xl) 0;
    }

    body .docs-page .docs-content {
        max-width: 100%;
        padding: var(--spacing-md);
        border-radius: var(--border-radius);
    }

    body .docs-page .docs-content h1 {
        font-size: 1.8rem;
        margin-bottom: var(--spacing-md);
        padding-bottom: var(--spacing-sm);
    }

    body .docs-page .docs-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        margin-top: var(--spacing-lg);
    }

    body .docs-page .docs-card {
        padding: var(--spacing-md);
    }

    body .docs-page .docs-card h3 {
        font-size: 1.1rem;
    }

    body .docs-page .docs-card p {
        font-size: 0.95rem;
    }
}

@media (max-width: 768px) {
    body .legal-page {
        padding: var(--spacing-xl) 0;
    }

    body .legal-page .legal-content {
        max-width: 100%;
        padding: var(--spacing-md) !important;
        border-radius: var(--border-radius);
    }

    body .legal-page .legal-content h1 {
        font-size: 1.8rem !important;
        margin-bottom: var(--spacing-md) !important;
        padding-bottom: var(--spacing-sm) !important;
    }

    body .legal-page .legal-content h2 {
        font-size: 1.05rem !important;
        line-height: 1.35;
        margin-top: var(--spacing-sm) !important;
        margin-bottom: 0 !important;
        padding: 0.78rem 2.2rem 0.78rem 0.95rem;
        background: #f5f9fd;
        border: 1px solid rgba(15, 76, 129, 0.16);
        border-radius: 0.72rem;
        cursor: pointer;
        position: relative;
    }

    body .legal-page .legal-content h2.legal-accordion-heading::after {
        content: '+';
        position: absolute;
        right: 0.85rem;
        top: 50%;
        transform: translateY(-50%);
        font-size: 1.1rem;
        font-weight: 700;
        color: var(--color-primary);
    }

    body .legal-page .legal-content h2.legal-accordion-heading.is-open::after {
        content: '-';
    }

    body .legal-page .legal-content .legal-accordion-body {
        padding: 0.7rem 0.2rem 0.35rem;
    }

    body .legal-page .legal-content h3 {
        font-size: 1rem !important;
        margin-top: var(--spacing-sm) !important;
        margin-bottom: 0.45rem !important;
    }

    body .legal-page .legal-content p {
        font-size: 0.95rem;
        line-height: 1.65 !important;
        margin-bottom: 0.75rem !important;
    }

    body .legal-page .legal-content li {
        font-size: 0.93rem;
        line-height: 1.6 !important;
        margin-bottom: 0.38rem !important;
    }

    body .legal-page .legal-content ul,
    body .legal-page .legal-content ol {
        margin-left: 1.15rem !important;
        margin-bottom: 0.8rem !important;
    }

    body .legal-page .legal-content .last-updated {
        text-align: left !important;
        font-size: 0.78rem !important;
        margin-bottom: var(--spacing-md) !important;
    }

    body .legal-page .legal-content .note {
        padding: 0.75rem !important;
        margin: 0.75rem 0 !important;
        border-left-width: 3px !important;
    }

    body .legal-page .legal-content table {
        display: block;
        width: 100%;
        border-collapse: separate;
        border-spacing: 0;
        margin-bottom: 0.8rem !important;
    }

    body .legal-page .legal-content table tr {
        display: block;
        border: 1px solid rgba(15, 76, 129, 0.16);
        border-radius: 0.72rem;
        overflow: hidden;
        margin-bottom: 0.6rem;
        background: #fff;
    }

    body .legal-page .legal-content table th,
    body .legal-page .legal-content table td {
        display: block;
        width: 100% !important;
        border: 0 !important;
        padding: 0.65rem 0.75rem !important;
        text-align: left;
    }

    body .legal-page .legal-content table th {
        border-bottom: 1px solid rgba(15, 76, 129, 0.14) !important;
        background: #f6fbff !important;
        font-size: 0.86rem;
        font-weight: 700 !important;
    }

    body .legal-page .legal-content table td {
        font-size: 0.92rem;
        line-height: 1.62 !important;
    }
}

/* ===========================
   Hero Subtitle
   =========================== */
.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.02em;
}

@media (max-width: 768px) {
    .hero-subtitle {
        font-size: 1rem;
    }
}

/* ===========================
   Comparison Section
   =========================== */
.comparison {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
}

.comparison-table-wrapper {
    overflow-x: auto;
    margin-top: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    font-size: 0.95rem;
}

.comparison-table thead {
    background: var(--color-primary);
    color: white;
}

.comparison-table th {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
}

.comparison-table td {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}

.comparison-table tbody tr:hover {
    background-color: rgba(37, 99, 235, 0.03);
}

.comparison-table .highlight-col {
    background-color: rgba(37, 99, 235, 0.06);
    color: var(--color-primary);
    font-weight: 500;
}

.comparison-table thead .highlight-col {
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
    font-weight: 700;
}

.comparison-note {
    margin-top: var(--spacing-md);
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.85rem;
}

/* Comparison Highlights (Teaser on index.html) */
.comparison-highlights {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    flex-wrap: wrap;
    justify-content: center;
}

.comparison-highlight-item {
    flex: 1;
    min-width: 260px;
    max-width: 340px;
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg) var(--spacing-xl);
    box-shadow: 0 4px 16px rgba(15, 76, 129, 0.10);
    text-align: center;
}

.comparison-highlight-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.comparison-highlight-vs {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.comparison-other {
    color: var(--color-text-light);
    font-size: 0.9rem;
    text-decoration: line-through;
    opacity: 0.7;
}

.comparison-arrow {
    font-size: 1.2rem;
    color: var(--color-primary);
    font-weight: 700;
}

.comparison-knoask {
    font-size: 1.1rem;
    color: var(--color-primary);
}

.comparison-knoask strong {
    font-size: 1.4rem;
    font-weight: 800;
}

.comparison-cta-wrapper {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.comparison-cta-wrapper .btn {
    margin-top: var(--spacing-md);
}

/* Feature card inline link */
.feature-link {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
}

@media (max-width: 768px) {
    .comparison-table {
        font-size: 0.85rem;
    }
    .comparison-table th,
    .comparison-table td {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    .comparison-highlights {
        flex-direction: column;
        align-items: center;
    }
    .comparison-highlight-item {
        max-width: 100%;
        width: 100%;
    }
}

/* ===========================
   FAQ Section (Home)
   =========================== */
.faq-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg);
}

.faq-list {
    max-width: 800px;
    margin: var(--spacing-xl) auto 0;
}

.faq-item-home {
    background: white;
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow 0.2s ease;
}

.faq-item-home:hover {
    box-shadow: var(--shadow-md);
}

.faq-item-home[open] {
    box-shadow: var(--shadow-md);
}

.faq-question-home {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    cursor: pointer;
    list-style: none;
    user-select: none;
}

.faq-question-home::-webkit-details-marker {
    display: none;
}

.faq-question-home h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
    flex: 1;
    padding-right: var(--spacing-md);
    line-height: 1.5;
}

.faq-toggle {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    position: relative;
}

.faq-toggle::before,
.faq-toggle::after {
    content: '';
    position: absolute;
    background: var(--color-primary);
    border-radius: 2px;
    transition: transform 0.2s ease;
}

.faq-toggle::before {
    width: 16px;
    height: 2px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.faq-toggle::after {
    width: 2px;
    height: 16px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.faq-item-home[open] .faq-toggle::after {
    transform: translate(-50%, -50%) rotate(90deg);
    opacity: 0;
}

.faq-answer-home {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--color-text-light);
    line-height: 1.8;
}

.faq-answer-home p {
    margin: 0;
}

.section-description a:not(.btn),
.pricing-note a:not(.btn),
.comparison-note a:not(.btn),
.faq-answer-home a:not(.btn),
.lp-faq .faq-answer a:not(.btn),
details.faq-item-lp .faq-answer-lp a:not(.btn),
.lp-section:not(.lp-cta) a:not(.btn) {
    color: var(--color-link-strong);
    text-decoration: underline;
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.15em;
}

.section-description a:not(.btn):visited,
.pricing-note a:not(.btn):visited,
.comparison-note a:not(.btn):visited,
.faq-answer-home a:not(.btn):visited,
.lp-faq .faq-answer a:not(.btn):visited,
details.faq-item-lp .faq-answer-lp a:not(.btn):visited,
.lp-section:not(.lp-cta) a:not(.btn):visited {
    color: var(--color-link-strong);
}

.section-description a:not(.btn):hover,
.section-description a:not(.btn):focus-visible,
.pricing-note a:not(.btn):hover,
.pricing-note a:not(.btn):focus-visible,
.comparison-note a:not(.btn):hover,
.comparison-note a:not(.btn):focus-visible,
.faq-answer-home a:not(.btn):hover,
.faq-answer-home a:not(.btn):focus-visible,
.lp-faq .faq-answer a:not(.btn):hover,
.lp-faq .faq-answer a:not(.btn):focus-visible,
details.faq-item-lp .faq-answer-lp a:not(.btn):hover,
details.faq-item-lp .faq-answer-lp a:not(.btn):focus-visible,
.lp-section:not(.lp-cta) a:not(.btn):hover,
.lp-section:not(.lp-cta) a:not(.btn):focus-visible {
    color: var(--color-primary);
    text-decoration-thickness: 0.1em;
}

.faq-more {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* ===========================
   About Reasons List
   =========================== */
.about-reasons li {
    position: relative;
    padding-left: 0.5rem;
}

.about-reasons li::marker {
    color: var(--color-primary);
    font-weight: bold;
}

/* ===========================
   CSP準拠: ユーティリティクラス
   （インラインスタイルの代替）
   =========================== */

/* 非表示ユーティリティ */
.is-hidden {
    display: none !important;
}

/* body スクロール無効化 */
.overflow-hidden {
    overflow: hidden;
}

/* ヘッダー: スクロール後の状態 */
.header-scrolled {
    box-shadow: 0 10px 30px rgba(15, 76, 129, 0.12);
    background: rgba(255, 255, 255, 0.9);
}

/* アニメーション初期状態 */
.anim-initial {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

/* アニメーション表示状態 */
.anim-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ヒーローカード: ホバー状態（JS制御用） */
.hero-card-hover {
    transform: translateY(-8px) scale(1.05);
}

/* 文字数カウント: エラー状態 */
.char-count-error {
    color: var(--color-error);
}

/* フォームエラー: 表示状態 */
.form-error-visible {
    display: block;
}

/* ボタンテキスト: インライン表示 */
.btn-text-visible {
    display: inline;
}

/* ボタンローディング: インラインフレックス表示 */
.btn-loading-visible {
    display: inline-flex;
}

/* フォームメッセージ: 表示状態 */
.form-message-visible {
    display: block;
}

/* ===========================
   ドキュメント・サブページ用ユーティリティクラス
   （インラインスタイル除去対応）
   =========================== */

/* リンク: プライマリカラー */
.link-primary {
    color: var(--color-primary);
}

/* ドキュメントサブタイトル */
.docs-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
}

/* ドキュメントサブタイトル（margin-bottom無し） */
.docs-subtitle-compact {
    font-size: 1.125rem;
    color: var(--color-text-light);
}

/* セクション区切り線 */
.docs-section-divider {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

/* セクション見出し（ドキュメント用） */
.docs-section-heading {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

/* ドキュメントコンタクト説明文 */
.docs-contact-text {
    color: var(--color-text-light);
    line-height: 1.8;
}

/* マージントップXL */
.mt-xl {
    margin-top: var(--spacing-xl);
}

/* ノートブロック内のpタグ用 */
.note-content {
    margin: 0;
}

/* パンくずリスト */
.breadcrumb-wrapper {
    margin-bottom: 24px;
    font-size: 0.875rem;
}

ol.breadcrumb.breadcrumb-wrapper {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    color: var(--color-text-light);
}

ol.breadcrumb.breadcrumb-wrapper li {
    color: var(--color-text-light);
}

ol.breadcrumb.breadcrumb-wrapper li + li::before {
    content: ">";
    margin: 0 8px;
    color: var(--color-text-light);
}

ol.breadcrumb.breadcrumb-wrapper a {
    color: var(--color-primary);
    text-decoration: none;
}

ol.breadcrumb.breadcrumb-wrapper a:hover,
ol.breadcrumb.breadcrumb-wrapper a:focus-visible {
    text-decoration: underline;
}

/* CTA内の反転ボタン */
.btn-primary-inverted {
    background: white;
    color: var(--color-primary);
    font-weight: 600;
}

/* CTA内の反転ボタン（大きめ） */
.btn-primary-inverted-lg {
    background: white;
    color: var(--color-primary);
    font-weight: 700;
    padding: 14px 32px;
    font-size: 1.1rem;
}

/* 法務ページノート: マージントップ */
.note-mt-md {
    margin-top: var(--spacing-md);
}

/* margin-bottom: 0 */
.mb-0 {
    margin-bottom: 0;
}

/* margin-top: spacing-xl */
.mt-spacing-xl {
    margin-top: var(--spacing-xl);
}

/* ===========================
   LP共通スタイル
   （comparison, usecases, rag-chatbot, internal-faq, chatbot-free）
   =========================== */

/* LP レイアウト */
.lp-page {
    padding: 80px 0 60px;
    background: #ffffff;
}

.lp-content {
    max-width: 900px;
    margin: 0 auto;
}

/* LP ヒーロー */
.lp-hero {
    background: linear-gradient(135deg, #0f4c81, #0a3458);
    color: white;
    padding: 60px 40px;
    border-radius: 1.25rem;
    margin-bottom: 40px;
    text-align: center;
}

.lp-hero h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.lp-hero p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.7;
}

.lp-hero a:not(.btn) {
    color: rgba(255, 255, 255, 0.95);
    text-decoration: underline;
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.16em;
}

.lp-hero a:not(.btn):visited {
    color: rgba(255, 255, 255, 0.95);
}

.lp-hero a:not(.btn):hover,
.lp-hero a:not(.btn):focus-visible {
    color: #ffffff;
    text-decoration-thickness: 0.1em;
}

/* LP セクション */
.lp-section {
    background: white;
    padding: 40px;
    border-radius: 1.25rem;
    box-shadow: 0 8px 18px rgba(15, 76, 129, 0.11);
    margin-bottom: 32px;
}

.lp-section h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #10243d;
    border-left: 4px solid #0f4c81;
    padding-left: 16px;
}

.lp-section h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 24px 0 12px;
    color: #10243d;
}

.lp-section p {
    line-height: 1.8;
    color: #4b6179;
    margin-bottom: 16px;
}

.lp-section ul,
.lp-section ol {
    margin-left: 24px;
    margin-bottom: 16px;
}

.lp-section li {
    margin-bottom: 8px;
    line-height: 1.7;
    color: #4b6179;
}

/* LP CTA */
.lp-cta {
    text-align: center;
    padding: 40px;
    background: linear-gradient(135deg, #0f4c81, #0a3458);
    border-radius: 1.25rem;
    margin-top: 40px;
}

.lp-cta h2 {
    color: white;
    margin-bottom: 16px;
    font-size: 1.5rem;
    border: none;
    padding: 0;
}

.lp-cta p {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 24px;
}

.lp-cta p a {
    color: rgba(255, 255, 255, 0.95);
    text-decoration: underline;
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.16em;
}

.lp-cta p a:visited {
    color: rgba(255, 255, 255, 0.95);
}

.lp-cta p a:hover,
.lp-cta p a:focus-visible {
    color: #ffffff;
}

.lp-cta .btn {
    background: white;
    color: var(--color-primary);
    font-weight: 600;
    padding: 14px 32px;
    border-radius: 0.75rem;
    display: inline-block;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}

.lp-cta .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    text-decoration: none;
}

/* LP パンくず */
.lp-breadcrumb {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 24px;
}

.lp-breadcrumb a {
    color: var(--color-primary);
    text-decoration: none;
}

.lp-breadcrumb a:hover {
    text-decoration: underline;
}

.lp-breadcrumb span {
    margin: 0 8px;
}

/* LP テーブル */
.lp-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 0.95rem;
}

.lp-table th,
.lp-table td {
    border: 1px solid var(--color-border);
    padding: 12px 16px;
    text-align: left;
}

.lp-table th {
    background: var(--color-bg-light);
    font-weight: 600;
    color: var(--color-text);
}

.lp-table td {
    color: var(--color-text-light);
}

.lp-table tr:nth-child(even) {
    background: #fafbfd;
}

.lp-table .highlight {
    background: rgba(15, 76, 129, 0.08);
    font-weight: 500;
}

/* LP FAQ（共通） */
.lp-faq details {
    margin-bottom: 16px;
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    overflow: hidden;
}

.lp-faq summary {
    padding: 16px 20px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    background: var(--color-bg-light);
    color: var(--color-text);
}

.lp-faq summary::-webkit-details-marker {
    display: none;
}

.lp-faq summary::after {
    content: "\FF0B";
    float: right;
    font-size: 1.2rem;
}

.lp-faq details[open] summary::after {
    content: "\2212";
}

.lp-faq summary:hover {
    background: rgba(15, 76, 129, 0.06);
}

.lp-faq .faq-answer {
    padding: 16px 20px;
    color: var(--color-text-light);
    line-height: 1.8;
    border-top: 1px solid var(--color-border);
}

/* LP FAQ（details.faq-item-lp — comparison/usecases用） */
details.faq-item-lp {
    background: white;
    border-radius: 0.75rem;
    margin-bottom: 12px;
    box-shadow: 0 2px 8px rgba(15, 76, 129, 0.06);
    overflow: hidden;
}

details.faq-item-lp summary {
    padding: 16px 20px;
    cursor: pointer;
    font-weight: 600;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

details.faq-item-lp summary::-webkit-details-marker {
    display: none;
}

details.faq-item-lp .faq-answer-lp {
    padding: 0 20px 16px;
    color: #4b6179;
    line-height: 1.8;
}

/* LP 比較テーブル（LP内） */
.lp-page .comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 0.95rem;
}

.lp-page .comparison-table th,
.lp-page .comparison-table td {
    padding: 12px 16px;
    border: 1px solid #d9e4ef;
    text-align: left;
}

.lp-page .comparison-table th {
    background: #0f4c81;
    color: white;
    font-weight: 600;
}

.lp-page .comparison-table .highlight {
    background: rgba(15, 76, 129, 0.05);
    font-weight: 600;
    color: #0f4c81;
}

/* LP ユースケースカード */
.usecase-card {
    padding: 32px;
    background: #f4f8fc;
    border-radius: 0.75rem;
    margin-bottom: 24px;
    border-left: 4px solid #0f4c81;
}

.usecase-card h3 {
    margin-top: 0;
}

/* LP 理由リスト（comparison用） */
.reason-list {
    list-style: none;
    margin-left: 0;
}

.reason-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 20px;
}

.reason-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 6px;
    width: 12px;
    height: 12px;
    background: #0f4c81;
    border-radius: 50%;
}

/* LP KPIカード（usecases用） */
.kpi-card {
    padding: 24px;
    background: #f4f8fc;
    border-radius: 0.75rem;
    margin-bottom: 20px;
    border: 1px solid #d9e4ef;
}

.kpi-card h3 {
    margin-top: 0;
}

/* LP ベネフィットグリッド（internal-faq用） */
.benefit-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 24px 0;
}

.benefit-card {
    padding: 24px;
    background: var(--color-bg-light);
    border-radius: var(--border-radius);
    text-align: center;
}

.benefit-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.benefit-card h4 {
    margin-bottom: 8px;
}

/* LP ステップ（internal-faq用） */
.lp-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 24px 0;
}

.lp-step {
    text-align: center;
    padding: 24px 16px;
    background: var(--color-bg-light);
    border-radius: var(--border-radius);
}

.lp-step-num {
    display: inline-block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    margin-bottom: 12px;
}

/* LP ユースケース一覧（internal-faq用） */
.lp-use-cases {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 24px 0;
}

.lp-use-case {
    padding: 20px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
}

.lp-use-case h4 {
    margin-bottom: 8px;
    color: var(--color-primary);
}

/* LP ステップグリッド（chatbot-free用） */
.step-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 24px 0;
}

.step-card {
    text-align: center;
    padding: 24px;
    background: var(--color-bg-light);
    border-radius: var(--border-radius);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-bottom: 12px;
}

.step-card h4 {
    margin-bottom: 8px;
}

/* LP 課題チェックリスト（chatbot-free用） */
.lp-problem-list {
    list-style: none;
    margin-left: 0;
}

.lp-problem-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 14px;
}

.lp-problem-list li::before {
    content: "\2713";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

/* LP ファイルタグ（chatbot-free用） */
.lp-file-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 16px 0;
}

.lp-file-tag {
    background: var(--color-bg-light);
    padding: 8px 16px;
    border-radius: var(--border-radius);
    font-weight: 500;
    color: var(--color-text);
}

/* LP レスポンシブ */
@media (max-width: 768px) {
    .lp-hero h1 {
        font-size: 1.6rem;
    }

    .lp-section {
        padding: 24px;
    }

    .lp-page .comparison-table {
        font-size: 0.8rem;
    }

    .lp-page .comparison-table th,
    .lp-page .comparison-table td {
        padding: 8px;
    }

    .lp-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        white-space: nowrap;
    }

    .lp-table {
        font-size: 0.85rem;
    }

    .lp-table th,
    .lp-table td {
        padding: 8px 10px;
    }

    .usecase-card {
        padding: 20px;
    }

    .benefit-grid,
    .lp-steps {
        grid-template-columns: 1fr;
    }

    .lp-use-cases {
        grid-template-columns: 1fr;
    }

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

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}