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

:root {
    /* カラーパレット - B2B向けの信頼感と誠実さを表現 */
    --primary-red: #DC2626;
    --primary-red-dark: #B91C1C;
    --primary-red-light: #EF4444;
    
    --dark-gray: #1F2937;
    --medium-gray: #4B5563;
    --light-gray: #6B7280;
    --border-gray: #E5E7EB;
    --bg-gray: #F9FAFB;
    
    --white: #FFFFFF;
    --black: #111827;
    
    /* タイポグラフィ */
    --font-base: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* スペーシング */
    --section-padding: 100px 0;
    --section-padding-mobile: 60px 0;
    --container-padding: 0 20px;
    
    /* トランジション */
    --transition-base: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    
    /* シャドウ */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-base);
    color: var(--dark-gray);
    line-height: 1.75;
    background-color: var(--white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

ul {
    list-style: none;
}

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

.pc-only {
    display: inline;
}

/* ========================================
   ヘッダー
======================================== */
.header {
    position: sticky;
    top: 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-base);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

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

.nav-list {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-list a {
    font-weight: 500;
    color: var(--dark-gray);
    font-size: 15px;
    position: relative;
}

.nav-list a:not(.btn-nav-cta):hover {
    color: var(--primary-red);
}

.nav-list a:not(.btn-nav-cta)::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-red);
    transition: width 0.3s ease;
}

.nav-list a:not(.btn-nav-cta):hover::after {
    width: 100%;
}

.btn-nav-cta {
    background-color: var(--primary-red);
    color: var(--white);
    padding: 10px 24px;
    border-radius: 6px;
    font-weight: 500;
    transition: var(--transition-base);
}

.btn-nav-cta:hover {
    background-color: var(--primary-red-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--dark-gray);
    border-radius: 2px;
    transition: var(--transition-base);
}

/* ========================================
   バナースライダー
======================================== */
.banner-slider {
    
    position: relative;
    width: 100%;
    height: 830px;
    overflow: hidden;
    background-color: var(--dark-gray);
}

.banner-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-slide.active {
    opacity: 1;
    z-index: 1;
}

.banner-slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    background-color: var(--dark-gray);
}

/* ナビゲーションドット */
.banner-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--transition-base);
    border: 2px solid transparent;
}

.dot:hover {
    background-color: rgba(255, 255, 255, 0.8);
    transform: scale(1.2);
}

.dot.active {
    background-color: var(--primary-red);
    border-color: var(--white);
    transform: scale(1.3);
}

/* 前へ/次へボタン */
.banner-prev,
.banner-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.5);
    color: var(--white);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-base);
    z-index: 10;
    backdrop-filter: blur(5px);
}

.banner-prev:hover,
.banner-next:hover {
    background-color: rgba(220, 38, 38, 0.9);
    transform: translateY(-50%) scale(1.1);
}

.banner-prev {
    left: 30px;
}

.banner-next {
    right: 30px;
}

.banner-prev:active,
.banner-next:active {
    transform: translateY(-50%) scale(0.95);
}

/* ========================================
   ヒーローセクション
======================================== */
.hero {
    position: relative;
    background: linear-gradient(135deg, #1F2937 0%, #374151 100%);
    color: var(--white);
    padding: 120px 0 180px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(220, 38, 38, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(220, 38, 38, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

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

.hero-subtitle {
    display: block;
    font-size: 18px;
    font-weight: 500;
    color: var(--primary-red-light);
    margin-bottom: 16px;
    letter-spacing: 0.1em;
}

.hero-main {
    display: block;
    font-size: 56px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 24px;
}

.hero-description {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

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

.hero-image {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

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

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.hero-wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 80px;
}

/* ========================================
   ボタン
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition-base);
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary-red);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: var(--primary-red-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--dark-gray);
}

.btn-secondary:hover {
    background-color: var(--bg-gray);
    transform: translateY(-3px);
}

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

.btn-outline:hover {
    background-color: var(--white);
    color: var(--dark-gray);
}

.btn-large {
    padding: 16px 40px;
    font-size: 18px;
}

.btn-xlarge {
    padding: 20px 48px;
    font-size: 18px;
}

/* ========================================
   セクションタイトル
======================================== */
.section-title {
    font-size: 42px;
    font-weight: 900;
    text-align: center;
    color: var(--black);
    margin-bottom: 16px;
    line-height: 1.3;
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--light-gray);
    margin-bottom: 60px;
}

.section-title-alt {
    font-size: 36px;
    font-weight: 900;
    text-align: center;
    color: var(--white);
    line-height: 1.4;
    margin-bottom: 50px;
}

/* ========================================
   第1章〜第3章セクション
======================================== */
.chapter-section {
    padding: var(--section-padding);
    background-color: var(--white);
}

.chapter-section.chapter-2 {
    background-color: var(--bg-gray);
}

.chapter-section.chapter-3 {
    background-color: var(--white);
}

.chapter-header {
    text-align: center;
    margin-bottom: 60px;
}

.chapter-number {
    display: inline-block;
    background-color: var(--primary-red);
    color: var(--white);
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

.chapter-title {
    font-size: 36px;
    font-weight: 900;
    color: var(--black);
    margin: 0;
    line-height: 1.3;
}

.chapter-content {
    max-width: 1100px;
    margin: 0 auto;
}

.chapter-intro {
    text-align: center;
    margin-bottom: 50px;
}

.chapter-subtitle {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark-gray);
    margin: 0;
}

.chapter-items {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.chapter-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.chapter-item.reverse {
    direction: rtl;
}

.chapter-item.reverse > * {
    direction: ltr;
}

.chapter-item-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background-color: var(--white);
}

.chapter-item-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.chapter-item:hover .chapter-item-image img {
    transform: scale(1.02);
}

.chapter-item-text {
    padding: 20px 0;
}

.chapter-item-text p {
    font-size: 18px;
    line-height: 1.9;
    color: var(--medium-gray);
    margin: 0;
}

.chapter-item-text p strong {
    color: var(--primary-red);
    font-weight: 700;
}

.chapter-item-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark-gray);
    margin: 0 0 16px 0;
    line-height: 1.5;
}

.chapter-item-note {
    font-size: 16px;
    line-height: 1.8;
    color: var(--medium-gray);
    margin-top: 12px;
    padding-left: 20px;
    border-left: 3px solid var(--primary-red);
}

.chapter-results {
    margin-top: 24px;
    padding: 24px;
    background-color: var(--bg-gray);
    border-radius: 8px;
    border-left: 4px solid var(--primary-red);
}

.result-item {
    font-size: 16px;
    line-height: 1.8;
    color: var(--medium-gray);
    margin: 8px 0;
}

.result-conclusion {
    font-size: 18px;
    line-height: 1.8;
    color: var(--primary-red);
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px solid var(--border-gray);
}

/* ========================================
   統計セクション
======================================== */
.stats {
    padding: var(--section-padding);
    background-color: var(--white);
}

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

.stat-card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    border: 2px solid var(--border-gray);
    transition: var(--transition-base);
}

.stat-card:hover {
    border-color: var(--primary-red);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.stat-icon {
    margin: 0 auto 24px;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(220, 38, 38, 0.1);
    border-radius: 50%;
}

.stat-number {
    font-size: 48px;
    font-weight: 900;
    color: var(--primary-red);
    margin-bottom: 12px;
    line-height: 1;
}

.stat-label {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 8px;
}

.stat-description {
    font-size: 15px;
    color: var(--light-gray);
}

/* ========================================
   問題提起セクション
======================================== */
.problem-section {
    padding: var(--section-padding);
    background: linear-gradient(135deg, #374151 0%, #1F2937 100%);
    color: var(--white);
}

.problem-boxes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin: 50px 0;
}

.problem-box {
    background-color: rgba(255, 255, 255, 0.08);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: var(--transition-base);
}

.problem-box:hover {
    background-color: rgba(255, 255, 255, 0.12);
    transform: translateY(-5px);
}

.problem-box.highlight {
    background-color: rgba(220, 38, 38, 0.2);
    border-color: var(--primary-red);
}

.problem-box h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--white);
}

.problem-box p {
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
}

.problem-data {
    margin-top: 60px;
    text-align: center;
}

.problem-data-intro {
    font-size: 17px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
}

/* ========================================
   点検の考え方セクション
======================================== */
.inspection-method-section {
    padding: var(--section-padding);
    background-color: var(--bg-gray);
}

.inspection-method-content {
    max-width: 1100px;
    margin: 0 auto;
}

.inspection-method-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-badge {
    display: inline-block;
    background-color: var(--primary-red);
    color: var(--white);
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin-bottom: 20px;
}

.inspection-method-intro {
    text-align: center;
    margin-bottom: 50px;
}

.intro-text {
    font-size: 20px;
    line-height: 1.9;
    color: var(--medium-gray);
    max-width: 800px;
    margin: 0 auto;
}

.inspection-method-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 60px;
}

.inspection-method-box {
    background-color: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.inspection-method-box:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.inspection-method-box.highlight {
    border: 2px solid var(--primary-red);
}

.method-box-icon {
    margin-bottom: 20px;
}

.method-box-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark-gray);
    margin: 0 0 16px 0;
}

.method-box-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--medium-gray);
    margin: 0;
}

.method-box-text strong {
    color: var(--primary-red);
    font-weight: 700;
}

.inspection-method-safety {
    background-color: var(--white);
    padding: 50px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

.safety-title {
    font-size: 28px;
    font-weight: 900;
    color: var(--dark-gray);
    text-align: center;
    margin: 0 0 40px 0;
}

.safety-items {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.safety-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.safety-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: var(--primary-red);
    color: var(--white);
    font-size: 24px;
    font-weight: 900;
    border-radius: 50%;
    flex-shrink: 0;
}

.safety-content {
    flex: 1;
}

.safety-item-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark-gray);
    margin: 0 0 12px 0;
}

.safety-item-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--medium-gray);
    margin: 0;
}

.safety-note {
    font-size: 14px;
    color: var(--light-gray);
    display: block;
    margin-top: 8px;
}

/* ========================================
   4つの特徴セクション
======================================== */
.features-main-section {
    padding: var(--section-padding);
    background-color: var(--white);
}

.features-main-header {
    text-align: center;
    margin-bottom: 80px;
}

.features-main-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 1100px;
    margin: 0 auto;
}

.feature-main-item {
    background-color: var(--white);
    border: 2px solid var(--border-gray);
    border-radius: 16px;
    padding: 40px;
    transition: var(--transition-base);
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 50px;
    align-items: start;
}

.feature-item-2,
.feature-item-3 {
    align-items: end;
}

.feature-main-item:hover {
    border-color: var(--primary-red);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.feature-main-content {
    display: flex;
    flex-direction: column;
}

.feature-main-number {
    display: inline-block;
    background-color: var(--primary-red);
    color: var(--white);
    padding: 6px 18px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 16px;
    width: fit-content;
}

.feature-main-title {
    font-size: 24px;
    font-weight: 900;
    color: var(--dark-gray);
    margin: 0 0 16px 0;
    line-height: 1.3;
}

.feature-subtitle {
    display: block;
    font-size: 16px;
    font-weight: 500;
    color: var(--light-gray);
    margin-top: 6px;
}

.feature-main-description {
    font-size: 16px;
    line-height: 1.6;
    color: var(--medium-gray);
    margin: 0 0 16px 0;
}

.feature-main-benefits {
    list-style: none;
    padding: 0;
    margin: 0 0 16px 0;
}

.feature-main-benefits li {
    font-size: 15px;
    line-height: 1.5;
    color: var(--medium-gray);
    padding: 8px 0 8px 28px;
    position: relative;
}

.feature-main-benefits li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-red);
    font-weight: 700;
    font-size: 18px;
}

.feature-main-result {
    font-size: 15px;
    line-height: 1.6;
    color: var(--dark-gray);
    font-weight: 600;
    margin: 0 0 0 0;
    padding: 16px;
    background-color: var(--bg-gray);
    border-radius: 8px;
    border-left: 4px solid var(--primary-red);
}

.feature-main-cost {
    font-size: 16px;
    line-height: 1.6;
    color: var(--medium-gray);
    margin: 0 0 0 0;
}

.feature-main-cost strong {
    color: var(--primary-red);
    font-weight: 700;
    font-size: 18px;
}

.feature-main-note {
    font-size: 13px;
    line-height: 1.6;
    color: var(--light-gray);
    margin: 12px 0 0 0;
    padding: 12px;
    background-color: var(--bg-gray);
    border-radius: 8px;
}

.feature-main-images {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
    justify-content: center;
}

.feature-main-images img {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: transform 0.8s ease;
}

.feature-item-2 .feature-main-images img,
.feature-item-3 .feature-main-images img {
    max-width: 400px;
}

.feature-main-images img:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

/* ========================================
   ソリューションセクション
======================================== */
.solution {
    padding: var(--section-padding);
    background-color: var(--bg-gray);
}

.solution-grid {
    display: flex;
    flex-direction: column;
    gap: 80px;
}

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

.solution-item.reverse {
    direction: rtl;
}

.solution-item.reverse > * {
    direction: ltr;
}

.solution-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.solution-text h3 {
    font-size: 32px;
    font-weight: 900;
    color: var(--black);
    margin-bottom: 20px;
}

.solution-text p {
    font-size: 17px;
    line-height: 1.9;
    color: var(--medium-gray);
}

/* ========================================
   特徴セクション
======================================== */
.features {
    padding: var(--section-padding);
    background-color: var(--white);
}

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

.feature-card {
    background-color: var(--white);
    border-radius: 16px;
    overflow: hidden;
    border: 2px solid var(--border-gray);
    transition: var(--transition-base);
}

.feature-card:hover {
    border-color: var(--primary-red);
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.feature-image {
    width: 100%;
    height: 280px;
    overflow: hidden;
}

.feature-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    background-color: var(--bg-gray);
    transition: transform 0.5s ease;
}

.feature-card:hover .feature-image img {
    transform: scale(1.08);
}

.feature-content {
    padding: 32px;
}

.feature-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 16px;
}

.feature-description p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--medium-gray);
}

/* ========================================
   導入事例セクション
======================================== */
.case-studies-section {
    padding: var(--section-padding);
    background-color: var(--white);
}

.case-studies-grid {
    display: flex;
    flex-direction: column;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.case-study-item {
    background-color: var(--white);
    border: 2px solid var(--border-gray);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.case-study-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.case-study-header {
    background-color: var(--primary-red);
    padding: 20px 40px;
    text-align: center;
}

.case-study-tagline {
    font-size: 18px;
    font-weight: 700;
    color: var(--white);
    margin: 0;
    line-height: 1.6;
}

.case-study-tagline sup {
    font-size: 12px;
    vertical-align: super;
}

.case-study-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
    padding: 40px;
}

.case-study-image {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.case-study-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.case-study-text {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.case-study-section {
    padding-bottom: 25px;
    border-bottom: 1px solid var(--border-gray);
}

.case-study-section:last-of-type {
    border-bottom: none;
}

.case-section-label {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 12px;
}

.case-study-section.challenge .case-section-label {
    background-color: var(--medium-gray);
    color: var(--white);
}

.case-study-section.change .case-section-label {
    background-color: var(--primary-red);
    color: var(--white);
}

.case-study-section.effect .case-section-label {
    background-color: #10B981;
    color: var(--white);
}

.case-study-section p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--medium-gray);
    margin: 0;
    padding-left: 20px;
    border-left: 3px solid var(--border-gray);
}

.case-effect-list {
    list-style: none;
    padding: 0;
    margin: 0;
    padding-left: 20px;
    border-left: 3px solid var(--border-gray);
}

.case-effect-list li {
    font-size: 16px;
    line-height: 1.8;
    color: var(--medium-gray);
    padding: 8px 0 8px 30px;
    position: relative;
}

.case-effect-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #10B981;
    font-weight: 700;
    font-size: 20px;
}

.case-study-company {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px solid var(--border-gray);
    text-align: center;
}

.company-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark-gray);
    margin: 0;
}

/* ========================================
   製品比較表セクション
======================================== */
.comparison-section {
    padding: var(--section-padding);
    background-color: var(--bg-gray);
}

.comparison-header {
    text-align: center;
    margin-bottom: 50px;
}

.comparison-subtitle {
    font-size: 24px;
    font-weight: 700;
    color: var(--medium-gray);
    margin-top: 10px;
    letter-spacing: 0.1em;
}

.comparison-table-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--white);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow-md);
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 30px;
}

.comparison-table th,
.comparison-table td {
    padding: 20px 15px;
    text-align: center;
    vertical-align: middle;
    border: 1px solid var(--border-gray);
}

.comparison-item-header {
    background-color: var(--dark-gray);
    color: var(--white);
    font-weight: 700;
    font-size: 16px;
    min-width: 120px;
}

.comparison-recommended {
    background-color: var(--primary-red);
    color: var(--white);
    font-weight: 700;
    min-width: 180px;
}

.comparison-recommended .comparison-text {
    color: var(--white);
    font-weight: 600;
}

.comparison-product {
    background-color: var(--white);
    min-width: 180px;
}

.comparison-criteria {
    background-color: var(--bg-gray);
    font-weight: 700;
    font-size: 16px;
    color: var(--dark-gray);
}

.comparison-rating {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 10px;
}

.rating-icon {
    font-size: 32px;
    font-weight: 700;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.comparison-rating.excellent .rating-icon {
    color: var(--white);
    background-color: var(--primary-red);
    border-radius: 50%;
    font-size: 24px;
}

.comparison-rating.good .rating-icon {
    color: var(--white);
    background-color: #3B82F6;
    border-radius: 50%;
    font-size: 24px;
}

.comparison-rating.inferior .rating-icon {
    color: var(--white);
    background-color: var(--medium-gray);
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    border-radius: 0;
    font-size: 20px;
    width: 36px;
    height: 36px;
}

.comparison-rating.poor .rating-icon {
    color: var(--white);
    background-color: var(--primary-red);
    border-radius: 4px;
    font-size: 28px;
    width: 36px;
    height: 36px;
}

.comparison-text {
    font-size: 14px;
    line-height: 1.6;
    color: var(--medium-gray);
    margin-top: 8px;
}

.comparison-recommended .comparison-text {
    color: var(--white);
}

.comparison-legend {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    padding-top: 20px;
    border-top: 2px solid var(--border-gray);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.legend-icon {
    font-size: 20px;
    font-weight: 700;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.legend-icon.excellent {
    color: var(--white);
    background-color: var(--primary-red);
    border-radius: 50%;
    font-size: 16px;
}

.legend-icon.good {
    color: var(--white);
    background-color: #3B82F6;
    border-radius: 50%;
    font-size: 16px;
}

.legend-icon.inferior {
    color: var(--white);
    background-color: var(--medium-gray);
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    border-radius: 0;
    font-size: 14px;
    width: 28px;
    height: 28px;
}

.legend-icon.poor {
    color: var(--white);
    background-color: var(--primary-red);
    border-radius: 4px;
    font-size: 18px;
    width: 28px;
    height: 28px;
}

.legend-text {
    font-size: 14px;
    color: var(--medium-gray);
}

/* ========================================
   仕様セクション
======================================== */
.specs {
    padding: var(--section-padding);
    background-color: var(--bg-gray);
}

.specs-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.specs-table table {
    width: 100%;
    background-color: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.specs-table th,
.specs-table td {
    padding: 20px 24px;
    text-align: left;
    border-bottom: 1px solid var(--border-gray);
}

.specs-table th {
    background-color: var(--dark-gray);
    color: var(--white);
    font-weight: 700;
    width: 35%;
}

.specs-table td {
    color: var(--medium-gray);
    font-size: 15px;
}

.specs-table tr:last-child th,
.specs-table tr:last-child td {
    border-bottom: none;
}

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

.specs-image img {
    max-width: 100%;
    filter: drop-shadow(var(--shadow-lg));
}

/* ========================================
   紹介画像セクション
======================================== */
.introduction-images-section {
    padding: 60px 0;
    background-color: var(--bg-gray);
}

.introduction-images-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.introduction-image-item {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.introduction-image-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.introduction-image-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.introduction-image-item:hover img {
    transform: scale(1.05);
}

/* ========================================
   FAQセクション
======================================== */
.faq-section {
    padding: var(--section-padding);
    background-color: var(--white);
}

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

.faq-item {
    background-color: var(--white);
    border: 2px solid var(--border-gray);
    border-radius: 12px;
    margin-bottom: 20px;
    overflow: hidden;
    transition: var(--transition-base);
}

.faq-item:hover {
    border-color: var(--primary-red);
    box-shadow: var(--shadow-md);
}

.faq-item.active {
    border-color: var(--primary-red);
    box-shadow: var(--shadow-lg);
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px 30px;
    cursor: pointer;
    transition: var(--transition-base);
    background-color: var(--bg-gray);
}

.faq-question:hover {
    background-color: rgba(220, 38, 38, 0.05);
}

.faq-item.active .faq-question {
    background-color: rgba(220, 38, 38, 0.08);
}

.faq-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: var(--primary-red);
    color: var(--white);
    font-size: 18px;
    font-weight: 900;
    border-radius: 8px;
    flex-shrink: 0;
}

.faq-question-text {
    flex: 1;
    font-size: 18px;
    font-weight: 700;
    color: var(--dark-gray);
    margin: 0;
    line-height: 1.5;
}

.faq-question::after {
    content: '+';
    font-size: 32px;
    font-weight: 300;
    color: var(--primary-red);
    transition: transform 0.3s ease;
    flex-shrink: 0;
    width: 30px;
    text-align: center;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 30px;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 30px 24px;
}

.faq-answer p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--medium-gray);
    margin: 0;
    padding-top: 20px;
}

/* ========================================
   CTAセクション
======================================== */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-red-dark) 100%);
    color: var(--white);
    text-align: center;
}

.cta-title {
    font-size: 48px;
    font-weight: 900;
    margin-bottom: 24px;
}

.cta-description {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 48px;
    color: rgba(255, 255, 255, 0.95);
}

/* ========================================
   資料・サンプル申し込みフォーム
======================================== */
.contact-form-section {
    max-width: 900px;
    margin: 0 auto 50px;
    background-color: var(--white);
    border-radius: 16px;
    padding: 50px 40px;
    box-shadow: var(--shadow-xl);
}

.contact-form-header {
    text-align: center;
    margin-bottom: 40px;
}

.contact-form-label {
    font-size: 12px;
    font-weight: 700;
    color: var(--primary-red);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
    display: block;
}

.contact-form-title {
    font-size: 32px;
    font-weight: 900;
    color: var(--dark-gray);
    margin-bottom: 12px;
}

.contact-form-subtitle {
    font-size: 16px;
    color: var(--medium-gray);
    margin: 0;
}

.contact-form-badges {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.contact-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background-color: var(--bg-gray);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark-gray);
}

.contact-badge svg {
    color: var(--primary-red);
    flex-shrink: 0;
}

.contact-form {
    background-color: var(--white);
    border: 1px solid var(--border-gray);
    border-radius: 12px;
    padding: 40px;
}

.form-section {
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-gray);
}

.form-section:last-of-type {
    border-bottom: none;
}

.form-section-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
}

.form-section-header svg {
    color: var(--primary-red);
    flex-shrink: 0;
}

.form-section-label {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark-gray);
}

.form-radio-group {
    display: flex;
    /* flex-direction: column; */
    gap: 12px;
}

.form-radio-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border: 2px solid var(--border-gray);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-base);
    background-color: var(--white);
}

.form-radio-option:hover {
    border-color: var(--primary-red);
    background-color: rgba(220, 38, 38, 0.05);
}

.form-radio-option.recommended {
    background-color: rgba(220, 38, 38, 0.1);
    border-color: var(--primary-red);
}

.form-radio-option input[type="radio"] {
    display: none;
}

.radio-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--medium-gray);
    border-radius: 50%;
    position: relative;
    flex-shrink: 0;
    transition: var(--transition-base);
}

.form-radio-option input[type="radio"]:checked + .radio-custom {
    border-color: var(--primary-red);
}

.form-radio-option input[type="radio"]:checked + .radio-custom::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background-color: var(--primary-red);
    border-radius: 50%;
}

.radio-text {
    font-size: 15px;
    color: var(--dark-gray);
    flex: 1;
}

.recommended-badge {
    display: inline-block;
    padding: 4px 12px;
    background-color: var(--primary-red);
    color: var(--white);
    font-size: 12px;
    font-weight: 700;
    border-radius: 4px;
    margin-left: 8px;
}

.form-group {
    display: flex;
    justify-content: space-between;
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 8px;
}

.required {
    color: var(--primary-red);
    font-size: 12px;
    margin-left: 4px;
}

.optional {
    color: var(--medium-gray);
    font-size: 12px;
    font-weight: 400;
    margin-left: 4px;
}

.form-input,
.form-textarea {
    width: 70%;
    padding: 14px 16px;
    border: 2px solid var(--border-gray);
    border-radius: 8px;
    font-size: 15px;
    font-family: inherit;
    color: var(--dark-gray);
    background-color: var(--white);
    transition: var(--transition-base);
    box-sizing: border-box;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-red);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

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

.form-submit-btn {
    width: 100%;
    padding: 18px 32px;
    background-color: var(--primary-red);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: var(--transition-base);
    margin-top: 30px;
}

.form-submit-btn:hover {
    background-color: var(--primary-red-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.form-submit-btn svg {
    flex-shrink: 0;
}

.contact-form-footer {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.contact-footer-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--dark-gray);
}

.contact-footer-item svg {
    color: #10B981;
    flex-shrink: 0;
}

.cta-contact-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto 40px;
    align-items: start;
}

.cta-main-button {
    text-align: left;
}

.cta-document-btn {
    width: 100%;
    justify-content: flex-start;
    padding: 20px 32px;
    background-color: var(--white);
    color: var(--primary-red);
    font-weight: 700;
    font-size: 18px;
    box-shadow: var(--shadow-lg);
    gap: 12px;
}

.cta-document-btn:hover {
    background-color: rgba(255, 255, 255, 0.95);
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.cta-document-btn svg:first-child {
    flex-shrink: 0;
}

.cta-document-btn span {
    flex: 1;
    text-align: left;
}

.cta-qr-code {
    margin-top: 24px;
    text-align: center;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.qr-code-image {
    width: 150px;
    height: 150px;
    margin: 0 auto 12px;
    display: block;
    background-color: var(--white);
    padding: 12px;
    border-radius: 8px;
    box-shadow: var(--shadow-md);
}

.qr-code-text {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
    margin: 0;
    font-weight: 500;
}

.cta-contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
    text-align: left;
}

.cta-phone,
.cta-email {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 24px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.cta-contact-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 8px;
    font-weight: 500;
}

.cta-contact-time {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 12px;
}

.cta-phone-number,
.cta-email-address {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition-base);
}

.cta-phone-number:hover,
.cta-email-address:hover {
    color: rgba(255, 255, 255, 0.9);
    transform: translateX(5px);
}

.cta-phone-number svg,
.cta-email-address svg {
    flex-shrink: 0;
    color: var(--white);
}

.cta-email-address {
    font-size: 18px;
    font-weight: 600;
}

.cta-company-info {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
}

.cta-company-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.95);
}

.cta-company-address {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.cta-info p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
}

/* ========================================
   フッター
======================================== */
.footer {
    background-color: var(--dark-gray);
    color: rgba(255, 255, 255, 0.8);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    margin-bottom: 50px;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.footer-logo img {
    height: 40px;
    margin-bottom: 20px;
}

.footer-tagline {
    font-size: 15px;
    color: var(--primary-red);
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-bestruck-logo {
    height: 50px;
    width: auto;
    display: block;
}

.footer-nav {
    display: flex;
    gap: 60px;
}

.footer-column h4 {
    color: var(--white);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-column ul li a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

/* ========================================
   レスポンシブデザイン
======================================== */

/* タブレット (768px - 1024px) */
@media (max-width: 1024px) {
    .banner-slider {
        height: 480px;
    }
    
    .banner-prev,
    .banner-next {
        width: 45px;
        height: 45px;
    }
    
    .banner-prev {
        left: 20px;
    }
    
    .banner-next {
        right: 20px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-main {
        font-size: 48px;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .problem-boxes {
        grid-template-columns: 1fr;
    }
    
    .solution-item,
    .solution-item.reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }
    
    /* 点検の考え方 - タブレット */
    .inspection-method-grid {
        grid-template-columns: 1fr;
    }
    
    .safety-items {
        grid-template-columns: 1fr;
    }
    
    /* 4つの特徴 - タブレット */
    .features-main-grid {
        gap: 35px;
    }
    
    .feature-main-item {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 35px;
    }
    
    .feature-item-2,
    .feature-item-3 {
        align-items: start;
    }
    
    .feature-main-images {
        order: -1;
    }
    
    .feature-main-images img {
        max-width: 100%;
    }
    
    .feature-item-2 .feature-main-images img,
    .feature-item-3 .feature-main-images img {
        max-width: 100%;
    }
    
    .feature-main-title {
        font-size: 22px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    /* 導入事例 - タブレット */
    .case-study-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    /* 製品比較表 - タブレット */
    .comparison-table-wrapper {
        padding: 20px;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 15px 10px;
        font-size: 13px;
    }
    
    .comparison-item-header,
    .comparison-criteria {
        font-size: 14px;
    }
    
    .comparison-text {
        font-size: 13px;
    }
    
    .rating-icon {
        font-size: 20px;
        width: 32px;
        height: 32px;
    }
    
    .comparison-rating.excellent .rating-icon,
    .comparison-rating.good .rating-icon {
        font-size: 18px;
    }
    
    .comparison-rating.inferior .rating-icon {
        font-size: 14px;
        width: 28px;
        height: 28px;
    }
    
    .comparison-rating.poor .rating-icon {
        font-size: 22px;
        width: 28px;
        height: 28px;
    }
    
    .comparison-legend {
        gap: 20px;
    }
    
    .case-study-header {
        padding: 18px 30px;
    }
    
    .case-study-tagline {
        font-size: 16px;
    }
    
    .specs-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    /* 第1章〜第3章 - タブレット */
    .chapter-title {
        font-size: 32px;
    }
    
    .chapter-subtitle {
        font-size: 22px;
    }
    
    .chapter-item {
        grid-template-columns: 1fr;
        gap: 30px;
        direction: ltr;
    }
    
    .chapter-item.reverse {
        direction: ltr;
    }
    
    .chapter-item-text {
        padding: 0;
    }
    
    .chapter-item-text p {
        font-size: 17px;
    }
    
    .chapter-item-title {
        font-size: 20px;
    }
    
    /* CTA - タブレット */
    .contact-form-section {
        padding: 40px 30px;
        margin-bottom: 40px;
    }
    
    .contact-form-title {
        font-size: 28px;
    }
    
    .contact-form {
        padding: 30px;
    }
    
    .form-radio-group {
        gap: 10px;
    }
    
    .form-radio-option {
        padding: 14px 18px;
    }
    
    .cta-contact-wrapper {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .cta-title {
        font-size: 40px;
    }
}

/* モバイル (〜767px) */
@media (max-width: 767px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .pc-only {
        display: none;
    }
    
    /* バナースライダー */
    .banner-slider {
        height: 350px;
    }
    
    .banner-prev,
    .banner-next {
        width: 40px;
        height: 40px;
    }
    
    .banner-prev {
        left: 10px;
    }
    
    .banner-next {
        right: 10px;
    }
    
    .banner-dots {
        bottom: 15px;
        gap: 8px;
    }
    
    .dot {
        width: 10px;
        height: 10px;
    }
    
    /* ヘッダー */
    .nav-list {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background-color: var(--white);
        flex-direction: column;
        padding: 30px 20px;
        box-shadow: var(--shadow-lg);
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        gap: 20px;
    }
    
    .nav-list.active {
        transform: translateX(0);
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    /* ヒーロー */
    .hero {
        padding: 80px 0 120px;
    }
    
    .hero-main {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-description {
        font-size: 16px;
    }
    
    .hero-cta {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-large,
    .btn-xlarge {
        width: 100%;
        justify-content: center;
        padding: 16px 32px;
        font-size: 16px;
    }
    
    /* セクションタイトル */
    .section-title {
        font-size: 32px;
    }
    
    .section-title-alt {
        font-size: 28px;
    }
    
    .section-subtitle {
        font-size: 16px;
        margin-bottom: 40px;
    }
    
    /* 統計 */
    .stat-number {
        font-size: 40px;
    }
    
    .stat-label {
        font-size: 16px;
    }
    
    /* ソリューション */
    .solution-text h3 {
        font-size: 26px;
    }
    
    .solution-text p {
        font-size: 15px;
    }
    
    /* 特徴 */
    .feature-image {
        height: 220px;
    }
    
    .feature-content {
        padding: 24px;
    }
    
    .feature-title {
        font-size: 20px;
    }
    
    .feature-description p {
        font-size: 14px;
    }
    
    /* 点検の考え方 - モバイル */
    .inspection-method-section {
        padding: 60px 0;
    }
    
    .inspection-method-header {
        margin-bottom: 40px;
    }
    
    .intro-text {
        font-size: 18px;
        padding: 0 10px;
    }
    
    .inspection-method-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-bottom: 40px;
    }
    
    .inspection-method-box {
        padding: 30px 20px;
    }
    
    .method-box-title {
        font-size: 20px;
    }
    
    .method-box-text {
        font-size: 15px;
    }
    
    .inspection-method-safety {
        padding: 30px 20px;
    }
    
    .safety-title {
        font-size: 24px;
        margin-bottom: 30px;
    }
    
    .safety-items {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .safety-number {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
    
    .safety-item-title {
        font-size: 18px;
    }
    
    .safety-item-text {
        font-size: 15px;
    }
    
    /* 4つの特徴 - モバイル */
    .features-main-section {
        padding: 60px 0;
    }
    
    .features-main-header {
        margin-bottom: 40px;
    }
    
    .features-main-grid {
        gap: 30px;
    }
    
    .feature-main-item {
        grid-template-columns: 1fr;
        gap: 25px;
        padding: 25px 20px;
    }
    
    .feature-item-2,
    .feature-item-3 {
        align-items: start;
    }
    
    .feature-main-images {
        order: -1;
    }
    
    .feature-main-images img {
        max-width: 100%;
    }
    
    .feature-item-2 .feature-main-images img,
    .feature-item-3 .feature-main-images img {
        max-width: 100%;
    }
    
    .feature-main-number {
        font-size: 12px;
        padding: 5px 14px;
        margin-bottom: 12px;
    }
    
    .feature-main-title {
        font-size: 20px;
        margin-bottom: 12px;
    }
    
    .feature-subtitle {
        font-size: 14px;
        margin-top: 4px;
    }
    
    .feature-main-description {
        font-size: 15px;
        line-height: 1.5;
        margin-bottom: 12px;
    }
    
    .feature-main-benefits {
        margin-bottom: 12px;
    }
    
    .feature-main-benefits li {
        font-size: 14px;
        line-height: 1.4;
        padding: 6px 0 6px 24px;
    }
    
    .feature-main-result {
        font-size: 14px;
        line-height: 1.5;
        padding: 12px;
        margin: 0;
    }
    
    .feature-main-cost {
        font-size: 15px;
        line-height: 1.5;
        margin: 0;
    }
    
    .feature-main-cost strong {
        font-size: 16px;
    }
    
    .feature-main-note {
        font-size: 12px;
        line-height: 1.5;
        padding: 10px;
        margin: 10px 0 0 0;
    }
    
    /* 第1章〜第3章 - モバイル */
    .chapter-section {
        padding: 60px 0;
    }
    
    .chapter-header {
        margin-bottom: 40px;
    }
    
    .chapter-number {
        font-size: 12px;
        padding: 6px 20px;
    }
    
    .chapter-title {
        font-size: 24px;
        padding: 0 10px;
    }
    
    .chapter-intro {
        margin-bottom: 30px;
    }
    
    .chapter-subtitle {
        font-size: 20px;
    }
    
    .chapter-items {
        gap: 40px;
    }
    
    .chapter-item {
        grid-template-columns: 1fr;
        gap: 20px;
        direction: ltr;
    }
    
    .chapter-item.reverse {
        direction: ltr;
    }
    
    .chapter-item-image {
        border-radius: 8px;
    }
    
    .chapter-item-text {
        padding: 0;
    }
    
    .chapter-item-text p {
        font-size: 16px;
        line-height: 1.8;
    }
    
    .chapter-item-title {
        font-size: 18px;
        margin-bottom: 12px;
    }
    
    .chapter-item-note {
        font-size: 15px;
        padding-left: 15px;
        margin-top: 10px;
    }
    
    .chapter-results {
        padding: 20px;
        margin-top: 20px;
    }
    
    .result-item {
        font-size: 15px;
        margin: 6px 0;
    }
    
    .result-conclusion {
        font-size: 16px;
        margin-top: 16px;
        padding-top: 16px;
    }
    
    /* 紹介画像 - タブレット */
    .introduction-images-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    /* 紹介画像 - モバイル */
    .introduction-images-section {
        padding: 40px 0;
    }
    
    .introduction-images-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* FAQ */
    .faq-question {
        padding: 20px;
        gap: 15px;
    }
    
    .faq-number {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
    
    .faq-question-text {
        font-size: 16px;
    }
    
    .faq-question::after {
        font-size: 28px;
        width: 25px;
    }
    
    .faq-item.active .faq-answer {
        padding: 0 20px 20px;
    }
    
    .faq-answer p {
        font-size: 15px;
    }
    
    /* 仕様 */
    /* 導入事例 - モバイル */
    .case-studies-section {
        padding: 0px 0;
    }
    
    .case-studies-grid {
        gap: 40px;
    }
    
    /* 製品比較表 - モバイル */
    .comparison-section {
        padding: 00px 0;
    }
    
    .comparison-header {
        margin-bottom: 30px;
    }
    
    .comparison-subtitle {
        font-size: 18px;
    }
    
    .comparison-table-wrapper {
        padding: 15px;
        border-radius: 12px;
    }
    
    .comparison-table {
        font-size: 12px;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 12px 8px;
        font-size: 11px;
    }
    
    .comparison-item-header,
    .comparison-criteria {
        font-size: 12px;
        min-width: 80px;
    }
    
    .comparison-recommended,
    .comparison-product {
        min-width: 120px;
    }
    
    .comparison-text {
        font-size: 11px;
        line-height: 1.4;
    }
    
    .rating-icon {
        font-size: 18px;
        width: 28px;
        height: 28px;
    }
    
    .comparison-rating.excellent .rating-icon,
    .comparison-rating.good .rating-icon {
        font-size: 16px;
    }
    
    .comparison-rating.inferior .rating-icon {
        font-size: 12px;
        width: 24px;
        height: 24px;
    }
    
    .comparison-rating.poor .rating-icon {
        font-size: 20px;
        width: 24px;
        height: 24px;
    }
    
    .comparison-legend {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
    
    .legend-item {
        font-size: 12px;
    }
    
    .legend-icon {
        font-size: 18px;
    }
    
    .legend-text {
        font-size: 12px;
    }
    
    .case-study-header {
        padding: 16px 20px;
    }
    
    .case-study-tagline {
        font-size: 15px;
        line-height: 1.5;
    }
    
    .case-study-content {
        grid-template-columns: 1fr;
        gap: 25px;
        padding: 30px 20px;
    }
    
    .case-study-text {
        gap: 25px;
    }
    
    .case-study-section {
        padding-bottom: 20px;
    }
    
    .case-study-section p,
    .case-effect-list {
        padding-left: 15px;
        font-size: 15px;
    }
    
    .case-effect-list li {
        font-size: 15px;
        padding: 6px 0 6px 28px;
    }
    
    .company-name {
        font-size: 16px;
    }
    
    .specs-table th,
    .specs-table td {
        padding: 16px;
        font-size: 14px;
    }
    
    /* CTA */
    .cta-title {
        font-size: 32px;
    }
    
    .cta-description {
        font-size: 16px;
    }
    
    /* 資料・サンプル申し込みフォーム - モバイル */
    .contact-form-section {
        padding: 30px 20px;
        margin-bottom: 30px;
    }
    
    .contact-form-header {
        margin-bottom: 30px;
    }
    
    .contact-form-label {
        font-size: 11px;
    }
    
    .contact-form-title {
        font-size: 24px;
    }
    
    .contact-form-subtitle {
        font-size: 14px;
    }
    
    .contact-form-badges {
        gap: 12px;
        margin-bottom: 30px;
    }
    
    .contact-badge {
        padding: 10px 16px;
        font-size: 13px;
    }
    
    .contact-badge svg {
        width: 20px;
        height: 20px;
    }
    
    .contact-form {
        padding: 25px 20px;
    }
    
    .form-section {
        margin-bottom: 25px;
        padding-bottom: 25px;
    }
    
    .form-section-header {
        margin-bottom: 15px;
    }
    
    .form-section-label {
        font-size: 14px;
    }
    
    .form-radio-group {
        gap: 10px;
    }
    
    .form-radio-option {
        padding: 12px 16px;
    }
    
    .radio-text {
        font-size: 14px;
    }
    
    .recommended-badge {
        font-size: 11px;
        padding: 3px 10px;
    }
    
    .form-group {
        margin-bottom: 20px;
    }
    
    .form-label {
        font-size: 13px;
    }
    
    .form-input,
    .form-textarea {
        padding: 12px 14px;
        font-size: 14px;
    }
    
    .form-textarea {
        min-height: 100px;
    }
    
    .form-submit-btn {
        padding: 16px 24px;
        font-size: 16px;
    }
    
    .contact-form-footer {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }
    
    .contact-footer-item {
        font-size: 13px;
    }
    
    .cta-contact-wrapper {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .cta-main-button {
        text-align: center;
    }
    
    .cta-document-btn {
        justify-content: center;
        text-align: center;
    }
    
    .cta-document-btn span {
        text-align: center;
    }
    
    .cta-contact-info {
        text-align: center;
    }
    
    .cta-phone-number,
    .cta-email-address {
        justify-content: center;
    }
    
    .cta-phone-number {
        font-size: 20px;
    }
    
    .cta-email-address {
        font-size: 16px;
    }
    
    .cta-qr-code {
        margin-top: 20px;
        padding: 16px;
    }
    
    .qr-code-image {
        width: 120px;
        height: 120px;
    }
    
    .qr-code-text {
        font-size: 13px;
    }
    
    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    /* フッター */
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-nav {
        flex-direction: column;
        gap: 30px;
    }
}

/* 超小型モバイル (〜480px) */
@media (max-width: 480px) {
    /* 製品比較表 - 超小型モバイル */
    .comparison-table-wrapper {
        padding: 10px;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 10px 6px;
        font-size: 10px;
    }
    
    .comparison-item-header,
    .comparison-criteria {
        font-size: 11px;
        min-width: 70px;
    }
    
    .comparison-recommended,
    .comparison-product {
        min-width: 100px;
    }
    
    .comparison-text {
        font-size: 10px;
    }
    
    .rating-icon {
        font-size: 16px;
        width: 24px;
        height: 24px;
    }
    
    .comparison-rating.excellent .rating-icon,
    .comparison-rating.good .rating-icon {
        font-size: 14px;
    }
    
    .comparison-rating.inferior .rating-icon {
        font-size: 10px;
        width: 20px;
        height: 20px;
    }
    
    .comparison-rating.poor .rating-icon {
        font-size: 18px;
        width: 20px;
        height: 20px;
    }
    
    .comparison-subtitle {
        font-size: 16px;
    }
    .hero-main {
        font-size: 30px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .solution-text h3 {
        font-size: 24px;
    }
    
    .cta-title {
        font-size: 28px;
    }
}

/* ========================================
   感謝ページ
======================================== */
.thank-you-page {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--section-padding);
    background: linear-gradient(135deg, #F9FAFB 0%, #FFFFFF 100%);
}

.thank-you-content {
    max-width: 600px;
    text-align: center;
    padding: 60px 40px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
}

.thank-you-icon {
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
    animation: checkmarkAnimation 0.6s ease-in-out;
}

@keyframes checkmarkAnimation {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.thank-you-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 20px;
    line-height: 1.4;
}

.thank-you-message {
    font-size: 18px;
    color: var(--medium-gray);
    line-height: 1.8;
    margin-bottom: 30px;
}

.thank-you-info {
    background: var(--bg-gray);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 40px;
}

.thank-you-info-text {
    font-size: 16px;
    color: var(--medium-gray);
    line-height: 1.8;
}

.thank-you-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.thank-you-actions .btn {
    min-width: 200px;
}

/* モバイル対応 */
@media (max-width: 768px) {
    .thank-you-page {
        padding: var(--section-padding-mobile);
    }
    
    .thank-you-content {
        padding: 40px 24px;
        margin: 0 20px;
    }
    
    .thank-you-title {
        font-size: 24px;
    }
    
    .thank-you-message {
        font-size: 16px;
    }
    
    .thank-you-info {
        padding: 20px;
    }
    
    .thank-you-info-text {
        font-size: 14px;
    }
    
    .thank-you-actions {
        flex-direction: column;
    }
    
    .thank-you-actions .btn {
        width: 100%;
        min-width: auto;
    }
}