/* 筑紫B明朝 (N仕様) を使う場合: フォントファイルを fonts/ 等に配置し、以下を有効にしてください
@font-face {
    font-family: 'Tsukushi B Mincho';
    src: url('fonts/TsukushiBMincho.woff2') format('woff2'),
         url('fonts/TsukushiBMincho.woff') format('woff');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}
*/

:root {
    /* Across AI LP design: gray / slate palette */
    --brand-primary: #111827;
    --brand-black: #111827;
    --brand-gray: #4b5563;
    --brand-bg: #ffffff;
    --brand-bg-soft: #f9fafb;
    --brand-text: #111827;
    --brand-text-muted: #4b5563;
    --brand-text-light: #6b7280;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-400: #9ca3af;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-900: #111827;
    --slate-50: #f8fafc;
    --slate-300: #cbd5e1;
    --slate-500: #64748b;
    --slate-700: #334155;
    --slate-900: #0f172a;
    --font-sans: 'Noto Sans JP', system-ui, -apple-system, sans-serif;
    --font-serif: 'Playfair Display', 'Noto Serif JP', 'Yu Mincho', serif;
    /* 筑紫B明朝 (N仕様) - フォントファイルがある場合は @font-face で読み込んでください */
    --font-brand: 'Tsukushi B Mincho', '筑紫B明朝 StdN', '筑紫B明朝', 'Yu Mincho', '游明朝体', 'Hiragino Mincho ProN', serif;
    --transition-duration: 200ms;
    --transition-ease: ease;
}

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

a,
button {
    cursor: pointer;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 24px;
    padding: 12px 20px;
    background: var(--gray-900);
    color: #fff;
    font-size: 14px;
    text-decoration: none;
    z-index: 100;
    transition: top var(--transition-duration) var(--transition-ease);
}

.skip-link:focus {
    top: 24px;
}

.skip-link:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px #fff, 0 0 0 5px var(--gray-400);
}

a:focus-visible,
button:focus-visible,
[tabindex="0"]:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--gray-400);
    outline-offset: 2px;
}

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

html {
    scroll-behavior: smooth;
}

[id] {
    scroll-margin-top: 6rem;
}

body {
    font-family: var(--font-sans);
    line-height: 1.8;
    color: var(--brand-text);
    background: var(--gray-50);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (min-width: 768px) {
    .container {
        padding: 0 48px;
    }
}

/* Header Section */
.header {
    background: var(--brand-bg);
    padding: 0;
    position: relative;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-brand {
    font-family: var(--font-brand);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    color: var(--gray-900);
    text-decoration: none;
    transition: color var(--transition-duration) var(--transition-ease);
}

.header-brand:hover {
    color: var(--gray-700);
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.header-nav a {
    font-size: 13px;
    font-weight: 300;
    color: var(--gray-600);
    text-decoration: none;
    letter-spacing: 0.04em;
    transition: color var(--transition-duration) var(--transition-ease);
}

.header-nav a:hover {
    color: var(--gray-900);
}

/* Hero block */
.hero-block {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 48px;
    text-align: center;
}

.hero-heading {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 300;
    color: var(--gray-900);
    letter-spacing: 0.08em;
    line-height: 1.5;
    margin: 0 0 20px;
}

.hero-subcopy {
    font-size: clamp(0.875rem, 1.8vw, 1rem);
    color: var(--gray-600);
    line-height: 1.9;
    margin: 0 0 32px;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}

.hero-line1 {
    white-space: nowrap;
}

@media (min-width: 769px) {
    br.hero-br-sp {
        display: none;
    }

    br.section-br-sp {
        display: none;
    }
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}

.hero-cta-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    background: var(--gray-900);
    color: #fff;
    font-size: 12px;
    letter-spacing: 0.12em;
    text-decoration: none;
    transition: background var(--transition-duration) var(--transition-ease), transform var(--transition-duration) var(--transition-ease);
}

.hero-cta-primary:hover {
    background: var(--gray-700);
    transform: translateY(-1px);
}

.hero-cta-primary:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--gray-400);
    outline-offset: 2px;
}

.hero-cta-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border: 1px solid var(--gray-900);
    color: var(--gray-900);
    font-size: 12px;
    letter-spacing: 0.12em;
    text-decoration: none;
    transition: background var(--transition-duration) var(--transition-ease), color var(--transition-duration) var(--transition-ease), transform var(--transition-duration) var(--transition-ease);
}

.hero-cta-secondary:hover {
    background: var(--gray-900);
    color: #fff;
    transform: translateY(-1px);
}

.hero-cta-secondary:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--gray-400);
    outline-offset: 2px;
}

/* Hero load animation */
.hero-block .hero-heading,
.hero-block .hero-subcopy,
.hero-block .hero-cta {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.hero-block.hero-visible .hero-heading {
    opacity: 1;
    transform: none;
    transition-delay: 0.05s;
}

.hero-block.hero-visible .hero-subcopy {
    opacity: 1;
    transform: none;
    transition-delay: 0.15s;
}

.hero-block.hero-visible .hero-cta {
    opacity: 1;
    transform: none;
    transition-delay: 0.25s;
}

@media (prefers-reduced-motion: reduce) {
    .hero-block .hero-heading,
    .hero-block .hero-subcopy,
    .hero-block .hero-cta {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

.image-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 56px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
}

.grid-item {
    aspect-ratio: 4 / 1.1;
    overflow: hidden;
    border-radius: 12px;
    position: relative;
    transition: transform var(--transition-duration) var(--transition-ease),
                box-shadow var(--transition-duration) var(--transition-ease);
}

.grid-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.placeholder-image {
    width: 100%;
    height: 100%;
    border-radius: 12px;
    transition: transform 0.6s ease;
}

.grid-item:hover .placeholder-image {
    transform: scale(1.1);
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
}

.placeholder-image.large {
    min-height: 450px;
    border-radius: 12px;
    transition: transform 0.6s ease;
}

.service-image:hover .placeholder-image.large {
    transform: scale(1.05);
}

/* Section Styles */
.section {
    padding: 48px 20px;
    position: relative;
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

@media (min-width: 768px) {
    .section {
        padding: 48px 36px;
    }
}

.section.visible {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {
    .section {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

.dark-section {
    background: linear-gradient(180deg, #1a1a1a 0%, #2a2a2a 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
    padding-top: 28px;
    padding-bottom: 72px;
}

.dark-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.05)"/></svg>') repeat;
    opacity: 0.3;
    pointer-events: none;
}

.white-section {
    background: var(--brand-bg);
    border-top: 1px solid var(--gray-100);
}

.section-alt {
    background: var(--gray-50);
    border-top: 1px solid var(--gray-100);
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 2.5vw, 1.875rem);
    font-weight: 300;
    text-align: center;
    margin-bottom: 40px;
    color: var(--gray-900);
    letter-spacing: 0.05em;
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: var(--gray-900);
}

.white-title {
    color: #fff;
}

.white-title::after {
    background: linear-gradient(90deg, transparent, #fff, transparent);
}

.icon-circle {
    text-align: center;
    font-size: 28px;
    color: #fff;
    margin-bottom: 40px;
    letter-spacing: 15px;
    opacity: 0.6;
}

.section-text {
    font-size: clamp(0.9375rem, 2.5vw, 1.0625rem);
    line-height: 1.85;
    max-width: 920px;
    margin: 0 auto;
    text-align: center;
    color: var(--gray-600);
    letter-spacing: 0.02em;
}

@media (min-width: 768px) {
    .section-text {
        font-size: 1.0625rem;
    }
}

.white-text {
    color: #fff;
    opacity: 0.95;
}

/* Business Content Section */
.business-content-section {
    position: relative;
    background: var(--gray-100);
    padding: 72px 24px;
    min-height: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.business-content-section::before {
    content: "28";
    position: absolute;
    font-size: 400px;
    font-weight: 900;
    color: rgba(0, 0, 0, 0.03);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 0;
    pointer-events: none;
    font-family: 'Arial', sans-serif;
    letter-spacing: 0;
}

.business-content-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.1) 100%);
    z-index: 0;
}

.business-content-overlay {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.business-subtitle {
    font-size: 18px;
    color: #fff;
    margin-bottom: 35px;
    font-weight: 600;
    letter-spacing: 1px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

/* Service Sections */
.service-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-top: 50px;
}

.service-content {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.service-title {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
    color: var(--gray-900);
    margin-bottom: 15px;
    letter-spacing: 0.02em;
    line-height: 1.2;
}

.service-subtitle {
    font-size: 20px;
    color: #666;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.service-slogan {
    font-size: 16px;
    color: #444444;
    font-weight: 600;
    margin-bottom: 25px;
    line-height: 1.6;
    letter-spacing: 0.3px;
}

.service-btn {
    background: transparent;
    color: var(--brand-primary);
    border: 1px solid var(--brand-primary);
    padding: 9px 28px;
    border-radius: 999px;
    font-size: 13px;
    transition: background var(--transition-duration) var(--transition-ease),
                color var(--transition-duration) var(--transition-ease),
                transform var(--transition-duration) var(--transition-ease),
                box-shadow var(--transition-duration) var(--transition-ease);
    width: auto;
    margin-bottom: 20px;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: none;
    position: relative;
    overflow: hidden;
}

.service-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    background: var(--brand-primary);
    color: #ffffff;
}

.social-links {
    display: flex;
    gap: 25px;
    margin-bottom: 25px;
}

.social-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: #555;
    transition: color var(--transition-duration) var(--transition-ease);
    cursor: pointer;
}

.social-item:hover {
    color: #333;
}

.social-icon {
    font-size: 22px;
    transition: transform var(--transition-duration) var(--transition-ease);
}

.social-item:hover .social-icon {
    transform: scale(1.2);
}

.service-description {
    font-size: 14px;
    line-height: 2;
    color: var(--brand-text-muted);
    margin-bottom: 25px;
    letter-spacing: 0.2px;
}

.service-features {
    margin-top: 20px;
    padding: 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-radius: 12px;
    border-left: 3px solid #cccccc;
}

.service-features p {
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--brand-text);
    font-size: 18px;
}

.service-features ul {
    list-style: none;
    padding-left: 0;
}

.service-features li {
    padding: 10px 0;
    padding-left: 25px;
    position: relative;
    color: #555555;
    font-size: 14px;
    line-height: 1.8;
    transition: transform var(--transition-duration) var(--transition-ease), color var(--transition-duration) var(--transition-ease);
}

.service-features li:hover {
    transform: translateX(5px);
    color: var(--brand-text);
}

.service-features li:before {
    content: "▶";
    position: absolute;
    left: 0;
    color: var(--brand-text);
    font-size: 12px;
    top: 12px;
}

.service-message {
    margin-top: 20px;
    font-size: 14px;
    line-height: 2;
    color: var(--brand-text-muted);
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid var(--brand-gray);
}

.service-message strong {
    color: #1a1a1a;
    font-size: 18px;
}

.service-image {
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-duration) var(--transition-ease), box-shadow var(--transition-duration) var(--transition-ease);
}

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

.service-image-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Company Profile Section */
.profile-subsection {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: flex-start;
    padding: 32px;
    background: var(--brand-bg);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: transform var(--transition-duration) var(--transition-ease),
                box-shadow var(--transition-duration) var(--transition-ease);
}

.profile-subsection:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.profile-number {
    font-size: 72px;
    font-weight: 900;
    color: #e0e0e0;
    margin-bottom: 15px;
    line-height: 1;
    font-family: 'Arial', sans-serif;
    transition: color var(--transition-duration) var(--transition-ease);
}

.profile-subsection:hover .profile-number {
    color: #d0d0d0;
}

.profile-title {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 25px;
    letter-spacing: 0.05em;
}

.profile-text {
    font-size: 14px;
    line-height: 2;
    color: var(--brand-text-muted);
    letter-spacing: 0.2px;
    margin-bottom: 20px;
}

.mission-vision-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.mission-section,
.vision-section {
    padding: 25px;
    background: var(--brand-bg);
    border-radius: 12px;
    border-left: 4px solid var(--brand-gray);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.mission-title,
.vision-title {
    font-size: 20px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f0f0f0;
}

.mission-section .profile-text,
.vision-section .profile-text {
    margin-bottom: 0;
}

.representative-info {
    display: flex;
    align-items: center;
    gap: 25px;
    margin-top: 35px;
    padding: 20px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.representative-photo {
    flex-shrink: 0;
    position: relative;
}

.photo-circle {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    border: 4px solid #fff;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-duration) var(--transition-ease);
    overflow: hidden;
}

.representative-info:hover .photo-circle {
    transform: scale(1.1);
}

.photo-circle img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.ai-passport-badge-image {
    position: absolute;
    right: -10px;
    bottom: -5px;
    width: 64px;
    height: 64px;
}

.ai-passport-badge-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.representative-details {
    font-size: 15px;
    color: var(--brand-text-muted);
    line-height: 1.8;
}

.representative-details p {
    margin-bottom: 8px;
}

.representative-details strong {
    color: #1a1a1a;
    font-size: 18px;
    font-weight: 700;
}

.representative-bio {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #e0e0e0;
    font-size: 14px;
    line-height: 1.8;
    color: #666;
}

.representative-bio p {
    margin-bottom: 15px;
}

.representative-bio p:last-child {
    margin-bottom: 0;
}

.representative-title {
    font-size: 14px;
    color: #666;
    margin-bottom: 8px;
    font-weight: 500;
}

.representative-name {
    font-size: 20px;
    margin-bottom: 15px;
}

.representative-name strong {
    font-size: 22px;
}

.ai-passport-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 10px;
    padding: 6px 12px;
    background: var(--brand-gray);
    border-radius: 20px;
    font-size: 12px;
    color: #fff;
    font-weight: 600;
}

.ai-passport-icon {
    font-size: 14px;
}

.ai-passport-text {
    letter-spacing: 0.3px;
}

.specialized-fields {
    margin-top: 40px;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 12px;
    border-left: 4px solid var(--brand-gray);
}

.fields-title {
    font-size: 16px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e0e0e0;
}

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

.fields-list li {
    padding: 12px 0;
    padding-left: 25px;
    position: relative;
    color: var(--brand-text-muted);
    font-size: 15px;
    line-height: 1.8;
    transition: transform var(--transition-duration) var(--transition-ease), color var(--transition-duration) var(--transition-ease);
}

.fields-list li:hover {
    transform: translateX(5px);
    color: var(--brand-text);
}

.fields-list li:before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--brand-gray);
    font-size: 14px;
    font-weight: bold;
    top: 14px;
}

.profile-image {
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

/* Business cards */
.business-card-grid {
    display: grid;
    gap: 32px;
    margin-top: 40px;
}

@media (min-width: 768px) {
    .business-card-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.business-card {
    background: var(--brand-bg);
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 6px 20px rgba(0, 0, 0, 0.04);
    transition: transform var(--transition-duration) var(--transition-ease), box-shadow var(--transition-duration) var(--transition-ease);
}

.business-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06), 0 20px 48px rgba(0, 0, 0, 0.08);
}

.business-card-image {
    overflow: hidden;
    border-radius: 16px 16px 0 0;
    aspect-ratio: 4 / 3;
}

.business-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.business-card:hover .business-card-image img {
    transform: scale(1.03);
}

.business-card-body {
    padding: 24px 28px 28px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.business-card-body .business-card-link {
    margin-top: auto;
}

@media (min-width: 768px) {
    .business-card-body {
        padding: 28px 28px 28px;
    }
}

.business-card-title {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 500;
    color: var(--gray-900);
}

.business-card-tag {
    font-size: 10px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gray-400);
}

.business-card-text {
    font-size: clamp(13px, 2vw, 14px);
    color: var(--gray-600);
    line-height: 1.85;
}

.business-card-link {
    margin-top: 12px;
    align-self: flex-start;
    font-size: 11px;
    padding: 10px 24px;
    background: var(--gray-900);
    color: #fff;
    border: none;
    border-radius: 0;
    text-decoration: none;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    transition: background var(--transition-duration) var(--transition-ease), transform var(--transition-duration) var(--transition-ease);
}

.business-card-link:hover {
    background: var(--gray-700);
    transform: translateY(-1px);
}

.business-card-link:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--gray-400);
    outline-offset: 2px;
}

.case-card .business-card-title {
    font-size: 16px;
}

.section-lead {
    margin-top: 12px;
    font-size: 0.875rem;
    color: var(--gray-600);
    text-align: center;
    line-height: 1.75;
}

@media (min-width: 768px) {
    .section-lead {
        font-size: 1rem;
    }
}

.contact-box {
    margin-top: 32px;
    margin-left: auto;
    margin-right: auto;
    padding: 32px 28px;
    border-radius: 12px;
    background: var(--slate-50);
    border: 1px solid var(--slate-300);
    max-width: 560px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.contact-form-field label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--slate-700);
}

.contact-form-field .required {
    color: var(--gray-600);
}

.contact-form-field input,
.contact-form-field select,
.contact-form-field textarea {
    width: 100%;
    padding: 12px 0 10px;
    font-size: 15px;
    font-family: inherit;
    color: var(--gray-900);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--slate-300);
    border-radius: 0;
    transition: border-color var(--transition-duration) var(--transition-ease), box-shadow var(--transition-duration) var(--transition-ease);
}

.contact-form-field input::placeholder,
.contact-form-field textarea::placeholder {
    color: var(--slate-500);
}

.contact-form-field input:focus,
.contact-form-field select:focus,
.contact-form-field textarea:focus {
    outline: none;
    border-bottom-color: var(--slate-700);
}

.contact-form-field input:focus-visible,
.contact-form-field select:focus-visible,
.contact-form-field textarea:focus-visible {
    box-shadow: 0 1px 0 0 var(--slate-700);
}

.contact-form-field select {
    cursor: pointer;
    appearance: auto;
    padding-right: 8px;
}

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

.contact-form .contact-btn-large {
    align-self: flex-start;
    margin-top: 8px;
    border: none;
    cursor: pointer;
}

.contact-text {
    font-size: 14px;
    color: var(--slate-700);
}

.contact-link {
    color: var(--gray-900);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color var(--transition-duration) var(--transition-ease);
}

.contact-btn-large {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 32px;
    border: 1px solid var(--gray-900);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gray-900);
    text-decoration: none;
    transition: background var(--transition-duration) var(--transition-ease), color var(--transition-duration) var(--transition-ease), transform var(--transition-duration) var(--transition-ease);
}

.contact-btn-large:hover {
    background: var(--gray-900);
    color: #fff;
    transform: translateY(-1px);
}

.contact-btn-large:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--gray-400);
    outline-offset: 2px;
}

.profile-image-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Message section on top page (summary + link) */
.message-lead {
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

.message-cta-wrap {
    margin-top: 28px;
    text-align: center;
}

/* Profile page: photo + AI passport badge */
.profile-photo-and-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.profile-page .profile-page-photo-wrap {
    max-width: 280px;
    margin: 0;
    border-radius: 50%;
    overflow: hidden;
    aspect-ratio: 1;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.profile-page .profile-page-photo-wrap .profile-image-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Photo wrapper: position relative so badge can overlap (Across AI style) */
.profile-photo-with-badge {
    position: relative;
    flex-shrink: 0;
}

.profile-photo-with-badge .ai-passport-badge-image {
    right: 0;
    bottom: 0;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    overflow: hidden;
    background: transparent;
}

/* 画像を少し拡大して白い縁を円の外に押し出し、クロップで見えなくする */
.profile-photo-with-badge .ai-passport-badge-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transform: scale(1.15);
}

@media (min-width: 768px) {
    .profile-photo-with-badge .ai-passport-badge-image {
        width: 80px;
        height: 80px;
        right: 4px;
        bottom: 4px;
    }
}

.profile-ai-passport-badge img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.profile-page .profile-subsection.profile-page-content {
    align-items: flex-start;
}

@media (min-width: 768px) {
    .profile-page .profile-page-content {
        grid-template-columns: 1fr 320px;
        gap: 48px;
    }

    .profile-photo-and-badge {
        flex-direction: row;
        align-items: center;
        gap: 24px;
    }
}

.profile-signature {
    margin-bottom: 0;
    font-weight: 500;
    color: var(--gray-900);
}

.profile-back-wrap,
.contact-back-wrap {
    margin-top: 40px;
    text-align: center;
}

/* Legal pages (privacy, tokushoho, terms) */
.legal-section .section-title {
    margin-bottom: 32px;
}

.legal-content {
    max-width: 720px;
    margin: 0 auto;
    text-align: left;
}

.legal-lead {
    margin-bottom: 28px;
    line-height: 1.85;
    color: var(--gray-700);
}

.legal-dl {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 24px;
    margin-bottom: 28px;
}

.legal-dl dt {
    font-weight: 600;
    color: var(--gray-900);
    padding-bottom: 4px;
}

.legal-dl dd {
    margin: 0;
    color: var(--gray-700);
    line-height: 1.7;
}

.legal-article {
    margin-bottom: 28px;
}

.legal-article h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.legal-article p {
    font-size: 0.9375rem;
    line-height: 1.85;
    color: var(--gray-700);
    margin: 0;
}

.legal-article a {
    color: var(--gray-900);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.legal-note {
    font-size: 0.875rem;
    color: var(--gray-600);
    line-height: 1.75;
    margin-top: 20px;
}

@media (max-width: 768px) {
    .legal-dl {
        grid-template-columns: 1fr;
    }
}

/* Footer */
.footer {
    background: linear-gradient(180deg, #1a1a1a 0%, #0a0a0a 100%);
    color: #fff;
    padding: 80px 20px 50px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.footer-company {
    font-family: var(--font-brand);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: 0.06em;
}

.footer-center {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 24px 32px;
}

.footer-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    color: var(--brand-text);
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    font-size: 15px;
    text-decoration: none;
    transition: background var(--transition-duration) var(--transition-ease),
                transform var(--transition-duration) var(--transition-ease),
                box-shadow var(--transition-duration) var(--transition-ease);
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
}

.footer-btn:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.2);
}

.footer-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 14px;
    transition: color var(--transition-duration) var(--transition-ease),
                width var(--transition-duration) var(--transition-ease);
    position: relative;
}

.footer-link::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 1px;
    background: #fff;
    transition: width var(--transition-duration) var(--transition-ease);
}

.footer-link:hover {
    color: #fff;
}

.footer-link:hover::after {
    width: 100%;
}

.footer-right {
    text-align: right;
    font-size: 15px;
    line-height: 2;
    color: rgba(255, 255, 255, 0.9);
}

.footer-right p {
    margin-bottom: 5px;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive: 1440px, 1024px, 768px, 375px */
@media (max-width: 1024px) {
    .header-nav {
        gap: 20px;
    }

    .header-nav a {
        font-size: 12px;
    }

    .service-section {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .profile-subsection {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 24px;
    }

    .mission-vision-content {
        gap: 25px;
    }

    .mission-section,
    .vision-section {
        padding: 20px;
    }

    .specialized-fields {
        padding: 24px;
    }

    .representative-info {
        flex-direction: column;
        align-items: flex-start;
    }

    .representative-photo {
        margin-bottom: 20px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .footer-right {
        text-align: center;
    }

    .section-title {
        font-size: 28px;
    }

    .service-title {
        font-size: 24px;
    }

    .business-subtitle {
        font-size: 18px;
    }
}

@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
        padding: 14px 24px 18px;
    }

    .header-nav {
        flex-wrap: wrap;
        gap: 12px 20px;
    }

    .header-nav a {
        font-size: 11px;
    }

    .hero-block {
        padding: 0 24px 32px;
    }

    .section-title {
        font-size: 24px;
    }

    .service-title {
        font-size: 20px;
    }

    .image-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .section {
        padding: 48px 20px;
    }

    .business-content-section {
        padding: 72px 20px;
        min-height: 0;
    }

    .business-content-section::before {
        font-size: 200px;
    }

    .profile-number {
        font-size: 64px;
    }

    .business-card-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 375px) {
    .section {
        padding: 40px 16px;
    }

    .header-inner {
        padding: 12px 16px 14px;
    }

    .header-brand {
        font-size: 1.25rem;
    }

    .section-title {
        font-size: 20px;
    }
}