/* ==========================================================================
   assiST LP - Pollockブランドカラーを使用したスタイルシート
   ========================================================================== */

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

:root {
    /* Pollockブランドカラー */
    --color-primary: #fff9cc;      /* メインイエロー（背景色） */
    --color-secondary: #ec6a00;    /* オレンジ（アクセント） */
    --color-accent: #ff585f;       /* レッドアクセント */
    --color-line: #06C755;         /* LINE緑 */
    
    /* グレースケール */
    --color-dark: #3d3d3d;
    --color-gray-dark: #555555;
    --color-gray: #666666;
    --color-gray-light: #999999;
    --color-gray-lighter: #e0e0e0;
    --color-gray-lightest: #f5f5f5;
    --color-white: #ffffff;
    
    /* フォント */
    --font-primary: 'Noto Sans JP', sans-serif;
    --font-english: 'Poppins', sans-serif;
    
    /* スペーシング */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 60px;
    --spacing-xxl: 80px;
    
    /* コンテナ幅 */
    --container-width: 1200px;
    
    /* トランジション */
    --transition: all 0.3s ease;
    
    /* 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);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-gray-dark);
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

/* コンテナ
   ========================================================================== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.section-title {
    font-size: clamp(28px, 5vw, 42px);
    font-weight: 900;
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-dark);
    line-height: 1.3;
}

.section-title-white {
    color: var(--color-white);
}

.section-description {
    text-align: center;
    font-size: 16px;
    color: var(--color-gray);
    margin-bottom: var(--spacing-lg);
}

.section-description-white {
    color: rgba(255, 255, 255, 0.9);
}

/* STハイライト
   ========================================================================== */
.st-highlight {
    color: var(--color-secondary);
    font-weight: 900;
}

.st-highlight-white {
    color: var(--color-primary);
    font-weight: 900;
}

/* assiSTロゴテキスト
   ========================================================================== */
.assist-text {
    font-family: var(--font-english);
    font-weight: 700;
    font-size: 1.2em;
}

.assist-text-large {
    font-family: var(--font-english);
    font-weight: 800;
    font-size: 1.5em;
}

/* ボタン
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 16px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

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

.btn-primary:hover {
    background: #05B04A;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

/* ヘッダー
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.logo-image {
    height: 40px;
    max-width: 150px;
    width: auto;
    object-fit: contain;
}

.logo-sub {
    font-size: 12px;
    color: var(--color-gray);
    font-weight: 500;
    white-space: nowrap;
}

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

.nav-link {
    color: var(--color-gray-dark);
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--color-secondary);
}

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

.nav-link.cta-button:hover {
    background: #05B04A;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--color-secondary);
    cursor: pointer;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-md);
    z-index: 999;
    flex-direction: column;
    gap: var(--spacing-sm);
}

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

.mobile-menu-link {
    color: var(--color-gray-dark);
    font-weight: 500;
    padding: var(--spacing-sm);
    border-radius: 8px;
    transition: var(--transition);
}

.mobile-menu-link:hover {
    background-color: var(--color-gray-lightest);
    color: var(--color-secondary);
}

/* ヒーローセクション
   ========================================================================== */
.hero {
    position: relative;
    padding: 140px 0 var(--spacing-xxl);
    background: linear-gradient(135deg, var(--color-primary) 0%, #ffffff 100%);
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    background: var(--color-secondary);
    color: var(--color-white);
    padding: 8px 24px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.hero-title-main {
    font-size: clamp(32px, 6vw, 56px);
    font-weight: 900;
    color: var(--color-dark);
    line-height: 1.2;
}

.hero-title-sub {
    font-size: clamp(20px, 4vw, 32px);
    font-weight: 700;
    color: var(--color-gray);
}

.hero-service-name {
    margin: var(--spacing-lg) 0;
}

.hero-service-name .assist-text {
    font-size: clamp(40px, 8vw, 80px);
    color: var(--color-dark);
}

.hero-description {
    font-size: 18px;
    color: var(--color-gray);
    margin: var(--spacing-lg) auto;
    max-width: 700px;
    line-height: 1.8;
}

.hero-cta {
    margin: var(--spacing-lg) 0;
}

.hero-features {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-secondary);
    font-weight: 700;
    font-size: 16px;
}

.hero-feature-item i {
    font-size: 24px;
}

.hero-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    overflow: hidden;
}

.hero-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.hero-circle-1 {
    width: 400px;
    height: 400px;
    background: var(--color-primary);
    top: -200px;
    right: -100px;
}

.hero-circle-2 {
    width: 300px;
    height: 300px;
    background: var(--color-secondary);
    bottom: -150px;
    left: -100px;
}

.hero-circle-3 {
    width: 200px;
    height: 200px;
    background: var(--color-secondary);
    top: 50%;
    right: 10%;
}

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

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

.problem-card {
    background-color: var(--color-white);
    border: 2px solid var(--color-gray-lighter);
    border-radius: 16px;
    padding: var(--spacing-lg);
    transition: var(--transition);
}

.problem-card:hover {
    border-color: var(--color-secondary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.problem-icon {
    width: 60px;
    height: 60px;
    background: var(--color-secondary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.problem-icon i {
    font-size: 28px;
    color: var(--color-white);
}

.problem-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.problem-text {
    font-size: 14px;
    color: var(--color-gray);
    line-height: 1.7;
}

/* ソリューションセクション
   ========================================================================== */
.solution {
    background: linear-gradient(135deg, var(--color-primary) 0%, #fffdf0 100%);
    color: var(--color-dark);
}

.solution-content {
    max-width: 1000px;
    margin: 0 auto;
}

.solution-lead {
    text-align: center;
    font-size: 20px;
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    color: var(--color-gray-dark);
    font-weight: 600;
}

.comparison {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-md);
    align-items: center;
}

.comparison-item {
    background-color: var(--color-white);
    border-radius: 16px;
    padding: var(--spacing-lg);
}

.comparison-other {
    border: 2px solid var(--color-gray-lighter);
}

.comparison-assist {
    background-color: var(--color-white);
    color: var(--color-dark);
    border: 3px solid var(--color-secondary);
    box-shadow: var(--shadow-lg);
}

.comparison-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.comparison-badge-other {
    background-color: var(--color-gray-light);
    color: var(--color-white);
}

.comparison-badge-assist {
    background: var(--color-secondary);
    color: var(--color-white);
}

.comparison-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.comparison-other .comparison-icon {
    color: var(--color-gray-light);
}

.comparison-assist .comparison-icon {
    color: var(--color-secondary);
}

.comparison-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.comparison-list li {
    padding-left: 24px;
    position: relative;
    line-height: 1.7;
}

.comparison-list li::before {
    content: "•";
    position: absolute;
    left: 8px;
    font-weight: 700;
}

.comparison-arrow {
    font-size: 32px;
    color: var(--color-secondary);
}

/* 6つのSTセクション
   ========================================================================== */
.six-st {
    background-color: var(--color-gray-lightest);
}

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

.st-card {
    background-color: var(--color-white);
    border-radius: 16px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.st-card-header {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.st-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary) 0%, #ffffff 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid var(--color-secondary);
}

.st-icon i {
    font-size: 32px;
    color: var(--color-secondary);
}

.st-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-english);
}

.st-subtitle {
    font-size: 14px;
    color: var(--color-gray);
    font-weight: 500;
}

.st-description {
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-gray-dark);
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

/* 01を1段目全幅に */
.feature-card:nth-child(1) {
    grid-column: 1 / -1;
}

/* 02, 03は2段目 */
/* 04, 05は3段目 */
/* デフォルトの配置でOK */

.feature-card {
    background-color: var(--color-gray-lightest);
    border-radius: 16px;
    padding: var(--spacing-lg);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

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

.feature-card-large {
    grid-column: span 2;
    background: linear-gradient(135deg, var(--color-primary) 0%, #fffdf0 100%);
    color: var(--color-dark);
    border: 3px solid var(--color-secondary);
}

.feature-number {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    font-family: var(--font-english);
    font-size: 48px;
    font-weight: 800;
    opacity: 0.1;
}

.feature-card-large .feature-number {
    opacity: 0.2;
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--color-secondary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.feature-icon i {
    font-size: 28px;
    color: var(--color-white);
}

.feature-icon-large {
    width: 80px;
    height: 80px;
    background-color: var(--color-white);
    border: 3px solid var(--color-secondary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.feature-icon-large i {
    font-size: 40px;
    color: var(--color-secondary);
}

.feature-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.feature-card-large .feature-title {
    color: var(--color-dark);
    font-size: 24px;
}

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

.feature-card-large .feature-description {
    color: var(--color-gray-dark);
}

.feature-highlight-box {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border-radius: 12px;
    border: 2px solid var(--color-secondary);
}

.feature-highlight-text {
    color: var(--color-secondary);
    font-weight: 700;
    text-align: center;
    font-size: 16px;
}

/* 実績セクション
   ========================================================================== */
.results {
    background: linear-gradient(135deg, #4a4a4a 0%, #5d5d5d 100%);
    color: var(--color-white);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.result-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: var(--spacing-lg);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.result-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-secondary);
    box-shadow: 0 8px 32px rgba(236, 106, 0, 0.3);
}

.result-badge {
    display: inline-block;
    background: var(--color-secondary);
    color: var(--color-white);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.result-amount {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: var(--spacing-md);
}

.result-number {
    font-size: 56px;
    font-weight: 900;
    font-family: var(--font-english);
    color: var(--color-primary);
}

.result-unit {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
}

.result-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-white);
}

.result-description {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
}

.result-icon {
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    font-size: 64px;
    color: rgba(236, 106, 0, 0.1);
}

/* サポートセクション
   ========================================================================== */
.support {
    background-color: var(--color-gray-lightest);
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-md);
}

.support-card {
    background-color: var(--color-white);
    border-radius: 12px;
    padding: var(--spacing-md);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.support-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-md);
}

.support-card-highlight {
    background: linear-gradient(135deg, var(--color-primary) 0%, #ffffff 100%);
    border: 2px solid var(--color-secondary);
}

.support-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    background: var(--color-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.support-icon i {
    font-size: 28px;
    color: var(--color-white);
}

.support-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark);
}

.support-description {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-gray);
}

/* フローセクション
   ========================================================================== */
.flow {
    background-color: var(--color-white);
}

.flow-steps {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
}

.flow-step {
    flex: 1;
    min-width: 180px;
    text-align: center;
}

.flow-step-number {
    display: inline-block;
    background: var(--color-secondary);
    color: var(--color-white);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-english);
}

.flow-step-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background-color: var(--color-gray-lightest);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid var(--color-secondary);
}

.flow-step-icon i {
    font-size: 32px;
    color: var(--color-secondary);
}

.flow-step-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark);
}

.flow-step-description {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-gray);
}

.flow-arrow {
    font-size: 24px;
    color: var(--color-secondary);
    flex-shrink: 0;
}

/* CTAセクション
   ========================================================================== */
.cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, #fffdf0 100%);
    color: var(--color-dark);
    text-align: center;
}

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

.cta-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 900;
    margin-bottom: var(--spacing-md);
}

.cta-description {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    color: var(--color-gray-dark);
    font-weight: 600;
}

.cta-buttons {
    margin-bottom: var(--spacing-lg);
}

.cta-button-main {
    background-color: var(--color-line);
    color: var(--color-white);
}

.cta-button-main:hover {
    background-color: #05B04A;
    color: var(--color-white);
}

.cta-note {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    font-size: 14px;
}

.cta-note p {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    color: var(--color-gray-dark);
}

.cta-note i {
    color: var(--color-line);
}

/* IT・AI講座セクション
   ========================================================================== */
.training {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    position: relative;
    overflow: hidden;
}

.training-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.training-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.training-badge i {
    font-size: 16px;
}

.training-title {
    font-size: clamp(28px, 5vw, 40px);
    font-weight: 900;
    color: var(--color-dark);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.training-description {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-gray-dark);
    margin-bottom: var(--spacing-lg);
}

.pc-only {
    display: inline;
}

.training-highlight {
    background: linear-gradient(135deg, var(--color-primary) 0%, #fffdf0 100%);
    border: 3px solid var(--color-secondary);
    border-radius: 16px;
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.training-highlight i {
    font-size: 40px;
    color: var(--color-secondary);
    flex-shrink: 0;
}

.training-highlight-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-dark);
    text-align: left;
}

.training-highlight-text strong {
    color: var(--color-secondary);
    font-size: 18px;
    font-weight: 900;
}

.training-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.training-feature-item {
    background-color: var(--color-white);
    border: 2px solid var(--color-secondary);
    border-radius: 12px;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    transition: var(--transition);
}

.training-feature-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    background-color: var(--color-primary);
}

.training-feature-item i {
    font-size: 32px;
    color: var(--color-secondary);
}

.training-feature-item span {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-dark);
}

/* フッター
   ========================================================================== */
.footer {
    background-color: #4a4a4a;
    color: rgba(255, 255, 255, 0.9);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    align-items: start;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-logo-image {
    height: 40px;
    max-width: 150px;
    width: auto;
    margin-bottom: 8px;
    object-fit: contain;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.footer-logo .logo-sub {
    color: rgba(255, 255, 255, 0.6);
    font-size: 13px;
}

.footer-slogan {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    font-style: italic;
}

.footer-service {
    margin-top: var(--spacing-sm);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.footer-link-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-link-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
}

.footer-link {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--color-secondary);
}

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

.footer-copyright {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

/* ページトップボタン
   ========================================================================== */
.page-top {
    position: fixed;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    width: 50px;
    height: 50px;
    background: var(--color-secondary);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

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

.page-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

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

/* タブレット */
@media (max-width: 1024px) {
    .comparison-arrow {
        font-size: 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .flow-arrow {
        display: none;
    }
    

}

/* モバイル */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 40px;
        --spacing-xxl: 60px;
    }
    
    section {
        padding: var(--spacing-xl) 0;
    }
    
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding: 120px 0 var(--spacing-xl);
    }
    
    .hero-features {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .problems-grid,
    .st-grid,
    .features-grid,
    .results-grid,
    .support-grid {
        grid-template-columns: 1fr;
    }
    
    /* モバイルで01を1列に */
    .feature-card:nth-child(1) {
        grid-column: 1;
    }
    
    .comparison {
        grid-template-columns: 1fr;
    }
    
    .comparison-arrow {
        transform: rotate(90deg);
        margin: var(--spacing-sm) auto;
    }
    
    .flow-steps {
        flex-direction: column;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .btn-large {
        width: 100%;
        padding: 16px 32px;
    }
    
    /* モバイルで研修セクションの調整 */
    .training-highlight {
        flex-direction: column;
        text-align: center;
    }
    
    .training-highlight-text {
        text-align: center;
    }
    
    .training-features {
        grid-template-columns: 1fr;
    }
    
    .pc-only {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-description {
        font-size: 16px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .result-number {
        font-size: 40px;
    }
    
    .result-unit {
        font-size: 18px;
    }
}