/* ========================================
   リセット & 基本設定
======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* カラーパレット */
    --primary-color: #4A90E2;
    --primary-dark: #2E6AB8;
    --secondary-color: #50C878;
    --accent-color: #FF6B6B;
    --text-dark: #2C3E50;
    --text-gray: #5A6C7D;
    --text-light: #8B9CAE;
    --bg-white: #FFFFFF;
    --bg-light: #F8FAFB;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --border-color: #E8ECF0;
    
    /* シャドウ */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    
    /* アニメーション */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-white);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

/* ========================================
   ユーティリティクラス
======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.sp-only {
    display: none;
}

.pc-only {
    display: inline;
}

.highlight {
    color: var(--primary-color);
    font-weight: 700;
}

.required {
    color: var(--accent-color);
    font-size: 0.75rem;
    margin-left: 4px;
    font-weight: 500;
}

.optional {
    color: var(--text-light);
    font-size: 0.75rem;
    margin-left: 4px;
    font-weight: 400;
}

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

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.5rem;
}

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

.nav-link {
    font-weight: 500;
    color: var(--text-dark);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-normal);
}

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

.nav-link-cta {
    background: var(--primary-color);
    color: white;
    padding: 10px 24px;
    border-radius: 50px;
}

.nav-link-cta::after {
    display: none;
}

.nav-link-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    transition: var(--transition-normal);
}

/* モバイルメニュー */
.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    box-shadow: var(--shadow-md);
    padding: 20px;
    z-index: 999;
    flex-direction: column;
    gap: 16px;
}

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

.mobile-menu-link {
    padding: 12px 16px;
    text-align: center;
    font-weight: 500;
    border-radius: 8px;
    transition: var(--transition-normal);
}

.mobile-menu-link:hover {
    background: var(--bg-light);
}

.mobile-menu-link-cta {
    background: var(--primary-color);
    color: white;
}

.mobile-menu-link-cta:hover {
    background: var(--primary-dark);
}

/* ========================================
   ファーストビュー
======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    z-index: -1;
}

.hero-overlay {
    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 1440 320"><path fill="rgba(255,255,255,0.1)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,133.3C672,139,768,181,864,181.3C960,181,1056,139,1152,128C1248,117,1344,139,1392,149.3L1440,160L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
}

.hero-content {
    max-width: 800px;
    text-align: center;
    padding: 40px 20px;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: white;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    color: white;
    line-height: 1.3;
    margin-bottom: 20px;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 32px;
    font-weight: 500;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    color: white;
    font-weight: 500;
}

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

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

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 2px;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, white, transparent);
    animation: scrollAnimation 2s infinite;
}

@keyframes scrollAnimation {
    0%, 100% { opacity: 0; transform: translateY(0); }
    50% { opacity: 1; transform: translateY(10px); }
}

/* ========================================
   ボタン
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition-normal);
    text-align: center;
    justify-content: center;
}

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

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.8);
}

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

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

.btn-large {
    padding: 18px 40px;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

/* ========================================
   セクション共通
======================================== */
section {
    padding: 100px 0;
}

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

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 3px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--text-dark);
    line-height: 1.3;
    margin-bottom: 16px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-gray);
}

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

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
}

.problem-card {
    background: white;
    padding: 32px;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.problem-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.problem-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #FFE5E5 0%, #FFD6D6 100%);
    border-radius: 50%;
    color: var(--accent-color);
    font-size: 2rem;
}

.problem-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
    line-height: 1.4;
}

.problem-text {
    font-size: 0.95rem;
    color: var(--text-gray);
    line-height: 1.6;
}

.problems-solution {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.solution-arrow {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-size: 1.5rem;
    animation: bounce 2s infinite;
}

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

.solution-box {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    max-width: 700px;
    box-shadow: var(--shadow-lg);
}

.solution-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.solution-text {
    font-size: 1.1rem;
    line-height: 1.7;
}

/* ========================================
   サービスセクション
======================================== */
.service {
    background: white;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-bottom: 60px;
}

.service-card {
    background: white;
    border: 2px solid var(--border-color);
    padding: 40px 32px;
    border-radius: 20px;
    position: relative;
    transition: var(--transition-normal);
}

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

.service-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 3rem;
    font-weight: 900;
    color: rgba(74, 144, 226, 0.1);
}

.service-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 16px;
    font-size: 1.75rem;
    margin-bottom: 24px;
}

.service-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.service-text {
    font-size: 0.95rem;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 20px;
}

.service-list {
    list-style: none;
}

.service-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--text-gray);
}

.service-list li i {
    color: var(--secondary-color);
    font-size: 0.875rem;
}

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

/* ========================================
   選ばれる理由
======================================== */
.reasons {
    background: var(--bg-light);
}

.reasons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 32px;
}

.reason-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    position: relative;
}

.reason-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.reason-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(255, 215, 0, 0.95);
    color: white;
    padding: 8px 16px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 700;
    font-size: 0.875rem;
    box-shadow: var(--shadow-sm);
    z-index: 1;
}

.reason-image {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    position: relative;
}

.reason-content {
    padding: 32px;
}

.reason-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
    line-height: 1.4;
}

.reason-text {
    font-size: 0.95rem;
    color: var(--text-gray);
    line-height: 1.7;
}

/* ========================================
   実績セクション
======================================== */
.results {
    background: white;
}

.results-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
    margin-bottom: 80px;
}

.stat-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px 20px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.9;
}

.stat-number {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1;
    margin-bottom: 4px;
}

.stat-unit {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.results-subtitle {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 40px;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.case-card {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition-normal);
}

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

.case-label {
    background: var(--primary-color);
    color: white;
    padding: 8px 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.case-image {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.case-content {
    padding: 32px;
}

.case-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
    line-height: 1.4;
}

.case-text {
    font-size: 0.95rem;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 24px;
}

.case-results {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.case-result {
    background: var(--bg-light);
    padding: 16px;
    border-radius: 12px;
    text-align: center;
}

.case-result-label {
    font-size: 0.8rem;
    color: var(--text-gray);
    margin-bottom: 8px;
}

.case-result-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.case-result-value i {
    font-size: 1rem;
    margin-left: 4px;
    color: var(--secondary-color);
}

/* ========================================
   料金プラン
======================================== */
.pricing {
    background: var(--bg-light);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-bottom: 40px;
}

.pricing-card {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: 40px 32px;
    position: relative;
    transition: var(--transition-normal);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.pricing-card-featured {
    border-color: var(--primary-color);
    border-width: 3px;
    box-shadow: var(--shadow-md);
}

.pricing-badge {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    color: white;
    padding: 8px 24px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 700;
    font-size: 0.875rem;
    box-shadow: var(--shadow-sm);
}

.pricing-header {
    text-align: center;
    padding-bottom: 24px;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 32px;
}

.pricing-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.pricing-price {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 4px;
}

.price-currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-gray);
    margin-top: 8px;
}

.price-amount {
    font-size: 4rem;
    font-weight: 900;
    color: var(--primary-color);
    line-height: 1;
}

.price-period {
    font-size: 1rem;
    color: var(--text-gray);
    margin-top: 24px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    font-size: 0.95rem;
    color: var(--text-dark);
}

.pricing-features li i {
    font-size: 1rem;
    flex-shrink: 0;
}

.pricing-features li.disabled {
    color: var(--text-light);
}

.pricing-features li.disabled i {
    color: var(--text-light);
}

.pricing-note {
    background: white;
    padding: 24px;
    border-radius: 12px;
    text-align: center;
}

.pricing-note p {
    color: var(--text-gray);
    font-size: 0.95rem;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.pricing-note p:last-child {
    margin-bottom: 0;
}

.pricing-note i {
    color: var(--primary-color);
}

/* ========================================
   導入の流れ
======================================== */
.flow {
    background: white;
}

.flow-steps {
    max-width: 600px;
    margin: 0 auto;
}

.flow-step {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: 32px;
    text-align: center;
    transition: var(--transition-normal);
}

.flow-step:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.flow-step-number {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.875rem;
    margin-bottom: 20px;
}

.flow-step-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    font-size: 2rem;
}

.flow-step-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.flow-step-text {
    font-size: 0.95rem;
    color: var(--text-gray);
    line-height: 1.7;
}

.flow-arrow {
    text-align: center;
    padding: 20px 0;
    color: var(--primary-color);
    font-size: 2rem;
}

/* ========================================
   FAQ
======================================== */
.faq {
    background: var(--bg-light);
}

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

.faq-item {
    background: white;
    border-radius: 12px;
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px;
    background: white;
    border: none;
    text-align: left;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
    transition: var(--transition-normal);
}

.faq-question:hover {
    background: var(--bg-light);
}

.faq-question i {
    color: var(--primary-color);
    font-size: 1rem;
    transition: var(--transition-normal);
}

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

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

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

.faq-answer p {
    padding: 0 24px 24px;
    color: var(--text-gray);
    line-height: 1.8;
}

/* ========================================
   お問い合わせ
======================================== */
.contact {
    background: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.contact-info-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.contact-info-text {
    font-size: 1rem;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 32px;
}

.contact-methods {
    margin-bottom: 32px;
}

.contact-method {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: var(--bg-light);
    border-radius: 12px;
    margin-bottom: 16px;
}

.contact-method-icon {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: white;
    border-radius: 12px;
    font-size: 1.5rem;
}

.contact-method-content {
    flex: 1;
}

.contact-method-label {
    font-size: 0.875rem;
    color: var(--text-gray);
    margin-bottom: 4px;
}

.contact-method-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.contact-method-note {
    font-size: 0.875rem;
    color: var(--text-light);
}

.contact-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--text-dark);
    font-weight: 500;
}

.contact-feature i {
    color: var(--secondary-color);
    font-size: 1.1rem;
}

/* フォーム */
.contact-form-wrapper {
    position: relative;
}

.contact-form {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 20px;
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-normal);
    background: white;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(74, 144, 226, 0.1);
}

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

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.form-checkbox input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.form-link {
    color: var(--primary-color);
    text-decoration: underline;
}

.form-link:hover {
    color: var(--primary-dark);
}

.form-success {
    display: none;
    background: white;
    padding: 60px 40px;
    border-radius: 20px;
    text-align: center;
}

.form-success.active {
    display: block;
}

.form-success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #50C878 0%, #3FA866 100%);
    color: white;
    border-radius: 50%;
    font-size: 3rem;
}

.form-success-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.form-success-text {
    font-size: 1.1rem;
    color: var(--text-gray);
    line-height: 1.8;
}

/* ========================================
   フッター
======================================== */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-logo i {
    font-size: 1.75rem;
    color: var(--primary-color);
}

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

.footer-links-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
}

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

.footer-links-list li {
    margin-bottom: 12px;
}

.footer-links-list a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-normal);
}

.footer-links-list a:hover {
    color: white;
    padding-left: 4px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* ========================================
   固定CTA & トップへ戻る
======================================== */
.fixed-cta {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 999;
}

.fixed-cta-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--primary-color);
    color: white;
    padding: 16px 28px;
    border-radius: 50px;
    font-weight: 700;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
}

.fixed-cta-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(74, 144, 226, 0.4);
}

.fixed-cta-btn i {
    font-size: 1.25rem;
}

.scroll-top {
    position: fixed;
    bottom: 20px;
    right: 100px;
    width: 50px;
    height: 50px;
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 998;
}

.scroll-top.active {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-4px);
}

/* ========================================
   レスポンシブ（タブレット）
======================================== */
@media (max-width: 1024px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

/* ========================================
   レスポンシブ（スマホ）
======================================== */
@media (max-width: 768px) {
    .sp-only {
        display: inline;
    }
    
    .pc-only {
        display: none;
    }
    
    /* ヘッダー */
    .nav {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    /* ファーストビュー */
    .hero {
        min-height: 90vh;
        padding-top: 70px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-features {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn-large {
        padding: 16px 32px;
        font-size: 1rem;
    }
    
    /* セクション */
    section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .section-description {
        font-size: 1rem;
    }
    
    /* グリッド */
    .problems-grid,
    .service-grid,
    .reasons-grid,
    .results-stats,
    .cases-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    /* 実績 */
    .stat-number {
        font-size: 3rem;
    }
    
    .stat-unit {
        font-size: 1.25rem;
    }
    
    /* フッター */
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    /* 固定CTA */
    .fixed-cta {
        bottom: 80px;
        right: 50%;
        transform: translateX(50%);
    }
    
    .scroll-top {
        bottom: 20px;
        right: 20px;
    }
    
    /* フォーム */
    .contact-form {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .container {
        padding: 0 16px;
    }
}