/* ============================================
   Soloist - TERADATA風 リクルートサイト スタイルシート
   BEM記法対応版
   ============================================ */

/* CSS変数定義 */
:root {
    /* カラーパレット（クリーンなホワイト/グレー/オレンジ） */
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F5F5F5;
    --color-bg-light: #E8E8E8;
    --color-bg-dark: #1A1A1A;
    
    /* オレンジアクセント */
    --color-orange: #FF6B35;
    --color-orange-light: #FF8C5A;
    --color-orange-dark: #E55A2B;
    --color-orange-gradient: linear-gradient(135deg, #FF6B35 0%, #FF8C5A 100%);
    
    /* テキスト */
    --color-text-primary: #1A1A1A;
    --color-text-secondary: #333333;
    --color-text-muted: #666666;
    --color-text-white: #FFFFFF;
    
    /* 背景色の改善 */
    --color-bg-secondary: #FAFAFA;
    --color-bg-light: #F0F0F0;
    
    /* ボーダー */
    --color-border: rgba(26, 26, 26, 0.1);
    --color-border-orange: rgba(255, 107, 53, 0.3);
    
    /* タイポグラフィ */
    --font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    --font-family-script: "Brush Script MT", "Lucida Handwriting", cursive;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    
    --font-size-h1: clamp(64px, 10vw, 120px);
    --font-size-h2: clamp(32px, 5vw, 48px);
    --font-size-h3: clamp(24px, 4vw, 32px);
    --font-size-h4: clamp(18px, 3vw, 24px);
    
    --line-height-base: 1.8;
    --line-height-tight: 1.3;
    --line-height-relaxed: 1.6;
    
    /* スペーシング */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    --spacing-3xl: 96px;
    
    /* レイアウト */
    --container-max-width: 1200px;
    --container-padding: 24px;
    
    --section-padding-y: clamp(80px, 10vw, 140px);
    
    /* シャドウ */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.16);
    --shadow-xl: 0 12px 60px rgba(0, 0, 0, 0.2);
    --shadow-orange: 0 4px 20px rgba(255, 107, 53, 0.25);
    
    /* トランジション */
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* イージング */
    --ease-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    word-spacing: normal;
    letter-spacing: normal;
}

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

/* ============================================
   Site Header
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    transition: box-shadow var(--transition-base), background-color var(--transition-base);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.site-header.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    background-color: rgba(255, 255, 255, 0.99);
}

.site-header__inner {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-header__logo a {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    transition: transform var(--transition-base);
}

.site-header__logo a:hover {
    transform: scale(1.02);
}

.site-header__brand-main {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-orange);
    letter-spacing: 0.05em;
    line-height: 1;
    word-spacing: normal;
    white-space: nowrap;
}

.site-header__brand-sub {
    font-size: 10px;
    color: var(--color-text-secondary);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-top: 2px;
}

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

.site-nav__list {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.site-nav__list a {
    color: var(--color-text-primary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: color var(--transition-base);
    letter-spacing: 0.01em;
}

.site-nav__list a:hover {
    color: var(--color-orange);
}

.site-nav__entry {
    background-color: var(--color-orange);
    color: var(--color-text-white);
    padding: 12px 32px;
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: 6px;
    transition: all var(--transition-base);
    display: inline-block;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.site-nav__entry::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.site-nav__entry:hover::before {
    left: 100%;
}

.site-nav__entry:hover {
    background-color: var(--color-orange-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-orange);
}

.site-nav__toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.site-nav__toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: all var(--transition-base);
}

.site-nav__toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.site-nav__toggle.active span:nth-child(2) {
    opacity: 0;
}

.site-nav__toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-bg-primary);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    text-align: center;
}

.mobile-nav-link {
    color: var(--color-text-primary);
    text-decoration: none;
    font-size: var(--font-size-xl);
    font-weight: 500;
    transition: color var(--transition-base);
}

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

/* ============================================
   Hero
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 16px 40px;
    text-align: center;
    overflow: hidden;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(to bottom, rgba(0,0,0,0.3), rgba(0,0,0,0.8)),
        url("assets/img/hero.jpg") center/cover no-repeat,
        url("https://images.unsplash.com/photo-1522202176988-66273c2fd55f?w=1920&h=1080&fit=crop&q=80") center/cover no-repeat;
    z-index: -1;
}

/* 画像差し替えに対応：アスペクト比に関係なく表示 */
.hero__overlay::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255, 255, 255, 0.03) 2px, rgba(255, 255, 255, 0.03) 4px),
        repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(255, 255, 255, 0.03) 2px, rgba(255, 255, 255, 0.03) 4px);
    pointer-events: none;
}

.hero__inner {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-text-white);
}

.hero__copy {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.hero__welcome {
    letter-spacing: 0.3em;
    font-size: 12px;
    text-transform: uppercase;
    color: var(--color-text-white);
    margin-bottom: 8px;
    opacity: 1;
    transform: translateY(0);
    animation: fadeInUp 1s var(--ease-out) forwards;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero__logo {
    font-size: 56px;
    letter-spacing: 0.18em;
    font-weight: 700;
    color: var(--color-orange);
    line-height: var(--line-height-tight);
    margin-bottom: 8px;
    opacity: 1;
    transform: translateY(0);
    animation: fadeInUp 1s var(--ease-out) 0.3s forwards;
    text-shadow: 0 4px 20px rgba(255, 107, 53, 0.3);
    word-spacing: normal;
    white-space: nowrap;
}

.hero__subtitle {
    font-size: 14px;
    color: var(--color-text-white);
    opacity: 0.95;
    font-weight: 400;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    margin-bottom: 4px;
}

.hero__tagline {
    margin-top: 16px;
    font-size: 18px;
    color: var(--color-text-white);
    opacity: 0.98;
    line-height: 1.9;
    font-weight: 400;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero__cta {
    margin-top: var(--spacing-xl);
    display: inline-block;
}

.hero__note {
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-white);
    opacity: 0.9;
    text-align: center;
}

.hero__metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    width: 100%;
    max-width: 1000px;
    margin: var(--spacing-2xl) auto 0;
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero__metrics .stat-item {
    color: var(--color-text-white);
    text-align: center;
}

.hero__metrics .stat-item__number {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--spacing-xs);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero__metrics .stat-item__label {
    font-size: var(--font-size-sm);
    opacity: 0.95;
    font-weight: 500;
}

.hero__scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-white);
    font-size: 10px;
    letter-spacing: 0.3em;
    z-index: 2;
    opacity: 0.7;
    animation: bounce 2s infinite;
}

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

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

/* ============================================
   Section
   ============================================ */
.section {
    padding: 80px 16px;
    min-height: 200px;
    position: relative;
    background: #ffffff;
}

/* 背景画像がないセクションのみ、奇数/偶数で背景色を変える */
/* main内のsection要素で、背景画像クラスがないもののみ */
main > section.section:not(.section--keywords):not(.section--about):not(.section--works):not(.section--campus):not(.section--interview):not(.section--recruit):not(.section--faq):not(.section--split):nth-of-type(odd) {
    background: #fafafa;
}

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

.section__inner--wide {
    max-width: 100%;
    padding: 0;
}

.section__header {
    margin-bottom: var(--spacing-3xl);
}

.section__header--center {
    text-align: center;
}

.section__header--center .section__eyebrow {
    display: inline-block;
}

.section__eyebrow {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-orange);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
    padding-bottom: var(--spacing-xs);
}

.section__eyebrow::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--color-orange-gradient);
    border-radius: 1px;
}

.section__header--center .section__eyebrow::after {
    left: 50%;
    transform: translateX(-50%);
}

.section__title {
    font-size: var(--font-size-h2);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
    position: relative;
    letter-spacing: -0.02em;
}

.section__title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--color-orange-gradient);
    border-radius: 2px;
}

.section__header--center .section__title::after {
    left: 50%;
    transform: translateX(-50%);
}

.section__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-top: var(--spacing-md);
    font-weight: 400;
    line-height: 1.8;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

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

.section__body p {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: var(--line-height-base);
    margin-bottom: var(--spacing-xl);
    max-width: 70ch;
}

.section__footer {
    margin-top: var(--spacing-2xl);
}

.section__footer--center {
    text-align: center;
}

.section--keywords {
    position: relative;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.85) 0%, rgba(26, 26, 26, 0.9) 100%),
                url("assets/img/hero.jpg") center/cover no-repeat,
                url("https://images.unsplash.com/photo-1522202176988-66273c2fd55f?w=1920&h=1080&fit=crop&q=80") center/cover no-repeat;
    background-attachment: fixed;
    border-top: none;
    border-bottom: none;
    overflow: hidden;
}

.section--keywords::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.7) 0%, rgba(26, 26, 26, 0.85) 100%);
    z-index: 0;
}

.section--keywords .section__inner {
    position: relative;
    z-index: 1;
}

.section--keywords .section__title,
.section--keywords .section__eyebrow,
.section--keywords .section__subtitle {
    color: var(--color-text-white);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* KEYWORDSセクション内のボタンスタイル */
.section--keywords .btn--outline {
    background-color: transparent;
    color: var(--color-text-white);
    border: 2px solid var(--color-text-white);
    box-shadow: none;
}

.section--keywords .btn--outline:hover {
    background-color: var(--color-text-white);
    color: var(--color-text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.section--about {
    position: relative;
    background: linear-gradient(135deg, rgba(245, 245, 245, 0.95) 0%, rgba(255, 255, 255, 0.98) 100%),
                url("https://images.unsplash.com/photo-1522071820081-009f0129c71c?w=1920&h=1080&fit=crop&q=80") center/cover no-repeat;
    overflow: hidden;
}

.section--about::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(245, 245, 245, 0.85) 0%, rgba(255, 255, 255, 0.95) 100%);
    z-index: 0;
}

.section--about .section__inner {
    position: relative;
    z-index: 1;
}

.section--works {
    position: relative;
    background: linear-gradient(135deg, rgba(245, 245, 245, 0.95) 0%, rgba(255, 255, 255, 0.98) 100%),
                url("https://images.unsplash.com/photo-1522071820081-009f0129c71c?w=1920&h=1080&fit=crop&q=80") center/cover no-repeat;
    background-attachment: fixed;
    border-top: none;
    border-bottom: none;
    overflow: hidden;
}

.section--works::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(245, 245, 245, 0.85) 0%, rgba(255, 255, 255, 0.95) 100%);
    z-index: 0;
}

.section--works .section__inner {
    position: relative;
    z-index: 1;
}

.section--campus {
    position: relative;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.85) 0%, rgba(26, 26, 26, 0.9) 100%),
                url("https://images.unsplash.com/photo-1522202176988-66273c2fd55f?w=1920&h=1080&fit=crop&q=80") center/cover no-repeat;
    overflow: hidden;
}

.section--campus::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.7) 0%, rgba(26, 26, 26, 0.85) 100%);
    z-index: 0;
}

.section--campus .section__inner {
    position: relative;
    z-index: 1;
}

.section--campus .section__title,
.section--campus .section__eyebrow,
.section--campus .section__subtitle {
    color: var(--color-text-white);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.section--campus .step__title,
.section--campus .step__text,
.section--campus .campus-points li {
    color: var(--color-text-white);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.section--campus .section__body,
.section--campus .section__body p {
    color: var(--color-text-white);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.section--interview {
    position: relative;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.85) 0%, rgba(26, 26, 26, 0.9) 100%),
                url("https://images.unsplash.com/photo-1522202176988-66273c2fd55f?w=1920&h=1080&fit=crop&q=80") center/cover no-repeat;
    /* パフォーマンス最適化：background-attachmentをscrollに変更（fixedは重い） */
    background-attachment: scroll;
    border-top: none;
    border-bottom: none;
    overflow: hidden;
}

.section--interview::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.7) 0%, rgba(26, 26, 26, 0.85) 100%);
    z-index: 0;
}

.section--interview .section__inner {
    position: relative;
    z-index: 1;
}

.section--interview .section__title,
.section--interview .section__eyebrow,
.section--interview .section__subtitle {
    color: var(--color-text-white);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.section--recruit {
    position: relative;
    background: linear-gradient(135deg, rgba(245, 245, 245, 0.95) 0%, rgba(255, 255, 255, 0.98) 100%),
                url("https://images.unsplash.com/photo-1522071820081-009f0129c71c?w=1920&h=1080&fit=crop&q=80") center/cover no-repeat;
    overflow: hidden;
}

.section--recruit::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(245, 245, 245, 0.85) 0%, rgba(255, 255, 255, 0.95) 100%);
    z-index: 0;
}

.section--recruit .section__inner {
    position: relative;
    z-index: 1;
}

.section--faq {
    position: relative;
    background: linear-gradient(135deg, rgba(245, 245, 245, 0.95) 0%, rgba(255, 255, 255, 0.98) 100%),
                url("https://images.unsplash.com/photo-1522071820081-009f0129c71c?w=1920&h=1080&fit=crop&q=80") center/cover no-repeat;
    background-attachment: fixed;
    border-top: none;
    border-bottom: none;
    overflow: hidden;
}

.section--faq::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(245, 245, 245, 0.85) 0%, rgba(255, 255, 255, 0.95) 100%);
    z-index: 0;
}

.section--faq .section__inner {
    position: relative;
    z-index: 1;
}

.section--contact {
    background-color: var(--color-bg-primary);
}

.section--split {
    padding: 0;
    background: transparent;
}

.section--split .section__inner {
    max-width: 100%;
    padding: 0;
}

/* ============================================
   Keywords Carousel
   ============================================ */
.keywords-carousel-wrapper {
    width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    padding: var(--spacing-xl) 0;
    margin-bottom: var(--spacing-lg);
    scrollbar-width: none;
    -ms-overflow-style: none;
    white-space: nowrap;
    /* パフォーマンス最適化：GPU加速 */
    will-change: scroll-position;
    transform: translateZ(0);
    /* 滑らかなスクロール */
    -webkit-overflow-scrolling: touch;
    /* スクロールの滑らかさ向上 */
    scroll-snap-type: none;
    /* JavaScriptで制御するため、scroll-behaviorは削除 */
    scroll-behavior: auto;
}

.keywords-carousel-wrapper::-webkit-scrollbar {
    display: none;
}

.keywords-carousel {
    display: inline-flex;
    flex-wrap: nowrap;
    gap: 24px;
    padding: 0 var(--container-padding);
    width: max-content;
    white-space: nowrap;
    /* パフォーマンス最適化：GPU加速 */
    transform: translateZ(0);
    flex-shrink: 0;
    /* 滑らかな動きを実現 */
    backface-visibility: hidden;
    perspective: 1000px;
}

.keywords-carousel--clone {
    display: inline-flex;
    flex-wrap: nowrap;
    gap: 24px;
    padding: 0 var(--container-padding);
    width: max-content;
    white-space: nowrap;
    flex-shrink: 0;
    /* 滑らかな動きを実現 */
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

.keyword-card {
    flex-shrink: 0;
    width: 280px;
    border-radius: 16px;
    background: #ffffff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transform: translateY(0) translateZ(0);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    cursor: pointer;
    /* パフォーマンス最適化：GPU加速 */
    will-change: transform;
    backface-visibility: hidden;
}

.keyword-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.keyword-card__thumb {
    position: relative;
    width: 100%;
    padding-top: 60%;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1) 0%, rgba(255, 140, 90, 0.1) 100%);
}

.keyword-img {
    position: absolute;
    top: 0;
    /* パフォーマンス最適化：画像のレンダリング最適化 */
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    transform: translateZ(0);
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.15) 0%, rgba(255, 140, 90, 0.15) 100%);
    min-height: 100%;
}

/* 画像読み込みエラー時のフォールバック */
.keyword-img[src=""],
.keyword-img:not([src]) {
    opacity: 0;
}

.keyword-card__thumb::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.2) 0%, rgba(255, 140, 90, 0.2) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
    pointer-events: none;
}

.keyword-card__thumb:has(img[src=""])::after,
.keyword-card__thumb:has(img:not([src]))::after {
    opacity: 1;
}

/* エラーフォールバック表示 */
.keyword-card__thumb .error-fallback {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #FF6B35 0%, #FF8C5A 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    color: white;
    font-size: 20px;
    font-weight: 700;
    text-align: center;
    padding: 20px;
}

/* エラーフォールバック表示 */
.keyword-card__thumb .error-fallback {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #FF6B35 0%, #FF8C5A 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    color: white;
    font-size: 20px;
    font-weight: 700;
    text-align: center;
    padding: 20px;
}

.keyword-card:hover .keyword-img {
    transform: scale(1.05);
}

.keyword-card__body {
    padding: 20px;
    text-align: center;
}

.keyword-card__title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--color-text-primary);
    line-height: 1.3;
}

.keyword-card__caption {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* Keywords Controls (Indicators & View All Link) */
.keywords-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--container-padding);
    margin-bottom: var(--spacing-2xl);
}


.keywords-view-all {
    font-size: 14px;
    color: var(--color-text-white);
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

.keywords-view-all:hover {
    color: var(--color-orange-light);
}

/* ============================================
   Split Layout (Company / Work)
   ============================================ */
.split-layout {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    min-height: 380px;
    overflow: hidden;
}

.split-block {
    position: relative;
    padding: 80px 64px;
    color: #fff;
}

.split-block--company {
    background:
        linear-gradient(to right, rgba(0,0,0,0.75), rgba(0,0,0,0.25)),
        url("assets/img/company.jpg") center/cover no-repeat,
        url("https://images.unsplash.com/photo-1522071820081-009f0129c71c?w=1200&h=800&fit=crop&q=80") center/cover no-repeat;
}

.split-block--work {
    background:
        linear-gradient(to left, rgba(0,0,0,0.75), rgba(0,0,0,0.25)),
        url("assets/img/work.jpg") center/cover no-repeat,
        url("https://images.unsplash.com/photo-1552664730-d307ca884978?w=1200&h=800&fit=crop&q=80") center/cover no-repeat;
}

.split-block img {
    display: none;
}

.split-block__body {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.split-block__eyebrow {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}

.split-block__title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.split-block__text {
    font-size: var(--font-size-lg);
    line-height: 1.9;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
    word-spacing: normal;
    letter-spacing: normal;
    white-space: normal;
    font-variant-ligatures: none;
    text-rendering: optimizeLegibility;
    font-weight: 400;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}

/* ============================================
   Features Grid
   ============================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-2xl);
}

.feature-item {
    background-color: var(--color-bg-primary);
    padding: var(--spacing-xl);
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(255, 107, 53, 0.05);
    transition: all var(--transition-base);
    border: 2px solid rgba(255, 107, 53, 0.1);
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--color-orange-gradient);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform var(--transition-base);
}

.feature-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12), 0 6px 20px rgba(255, 107, 53, 0.15);
    border-color: rgba(255, 107, 53, 0.3);
}

.feature-item:hover::before {
    transform: scaleY(1);
}

.feature-item__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.feature-item__text {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-base);
    line-height: 1.8;
}

.feature-item__meta {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--spacing-sm);
    font-style: italic;
}

/* ============================================
   Steps (Campus)
   ============================================ */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.step {
    text-align: center;
    padding: var(--spacing-xl);
    position: relative;
    transition: all var(--transition-base);
}

.step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--color-orange-gradient);
    opacity: 0.1;
    transition: all var(--transition-base);
}

.step:hover::before {
    opacity: 0.2;
    transform: translateX(-50%) scale(1.2);
}

.step:hover {
    transform: translateY(-4px);
}

.step__title {
    font-size: var(--font-size-h3);
    font-weight: 700;
    color: var(--color-orange);
    margin-bottom: var(--spacing-md);
}

.step__text {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.campus-points {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 600px;
    margin: 0 auto;
}

.campus-points li {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    padding-left: var(--spacing-lg);
    position: relative;
    line-height: 1.8;
}

.campus-points li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-orange);
    font-weight: 700;
    font-size: 18px;
}

.campus-points li {
    transition: all var(--transition-base);
    cursor: default;
}

.campus-points li:hover {
    transform: translateX(4px);
    color: var(--color-text-primary);
}

/* ============================================
   Interview
   ============================================ */
.interview-images {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    align-items: flex-start;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.interview-img {
    width: 200px;
    height: 250px;
    border-radius: 8px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    cursor: pointer;
}

.interview-img:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: var(--shadow-xl);
    border-radius: 12px;
}

.interview-img-1 { 
    background-image: url('https://images.unsplash.com/photo-1571019613454-1cb2f99b2d8b?ixlib=rb-4.0.3&auto=format&fit=crop&w=400&q=80');
}
.interview-img-3 { 
    background-image: url('https://images.unsplash.com/photo-1507003211169-0a1dd7228f2d?ixlib=rb-4.0.3&auto=format&fit=crop&w=400&q=80');
}

/* ============================================
   Review Cards（横スクロールカルーセル）
   ============================================ */
.interview-reviews-wrapper {
    width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    padding: var(--spacing-xl) 0;
    margin-bottom: var(--spacing-lg);
    scrollbar-width: none;
    -ms-overflow-style: none;
    white-space: nowrap;
    /* パフォーマンス最適化：GPU加速（軽量化） */
    transform: translateZ(0);
    /* 滑らかなスクロール */
    -webkit-overflow-scrolling: touch;
    /* スクロールの滑らかさ向上 */
    scroll-snap-type: none;
    /* JavaScriptで制御するため、scroll-behaviorは削除 */
    scroll-behavior: auto;
    /* パフォーマンス最適化：will-changeは使用時のみ */
    contain: layout style paint;
}

.interview-reviews-wrapper::-webkit-scrollbar {
    display: none;
}

.interview-reviews-carousel {
    display: inline-flex;
    flex-wrap: nowrap;
    gap: 32px;
    padding: 0 var(--container-padding);
    width: max-content;
    white-space: nowrap;
    /* パフォーマンス最適化：GPU加速（軽量化） */
    transform: translateZ(0);
    /* 滑らかな動きを実現 */
    backface-visibility: hidden;
    /* パフォーマンス最適化：perspectiveを削除 */
}

.interview-reviews-carousel--clone {
    display: inline-flex;
    flex-wrap: nowrap;
    gap: 32px;
    padding: 0 var(--container-padding);
    width: max-content;
    white-space: nowrap;
    flex-shrink: 0;
    /* 滑らかな動きを実現 */
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

.review-card {
    background-color: var(--color-bg-primary);
    border-radius: 16px;
    padding: var(--spacing-xl);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1), 0 4px 16px rgba(255, 107, 53, 0.08);
    /* パフォーマンス最適化：transitionを軽量化 */
    transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
    border: 2px solid rgba(255, 107, 53, 0.1);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    position: relative;
    overflow: visible;
    flex-shrink: 0;
    width: 400px;
    min-height: auto;
    /* パフォーマンス最適化：GPU加速（軽量化） */
    transform: translateZ(0);
    backface-visibility: hidden;
    /* パフォーマンス最適化：will-changeは使用時のみ */
    contain: layout style;
}

.review-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-orange-gradient);
    transform: scaleX(0);
    transform-origin: left;
    /* パフォーマンス最適化：transitionを軽量化 */
    transition: transform 0.2s ease-out;
}

.review-card:hover {
    /* パフォーマンス最適化：ホバーエフェクトを軽量化 */
    transform: translateY(-4px) translateZ(0);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12), 0 6px 16px rgba(255, 107, 53, 0.15);
    border-color: rgba(255, 107, 53, 0.3);
}

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

.review-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.review-card__badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--color-orange-gradient);
    color: var(--color-text-white);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: 20px;
    letter-spacing: 0.05em;
}

.review-card__stars {
    color: #FFD700;
    font-size: var(--font-size-base);
    letter-spacing: 2px;
}

.review-card__text {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.8;
    flex-grow: 1;
    margin-bottom: var(--spacing-sm);
    word-wrap: break-word;
    overflow-wrap: break-word;
    white-space: normal;
}

.review-card__author {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    font-weight: 500;
    text-align: right;
    margin-top: auto;
}

/* ============================================
   Recruit Grid
   ============================================ */
.recruit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.recruit-card {
    background-color: var(--color-bg-primary);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-top: 4px solid var(--color-orange);
    padding: var(--spacing-xl);
    border-radius: 12px;
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    background-image: linear-gradient(135deg, transparent 0%, rgba(255, 107, 53, 0.03) 100%);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.recruit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-orange-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

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

.recruit-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
    border-color: var(--color-orange);
    border-top-width: 6px;
}

.recruit-card:hover .recruit-card__title {
    color: var(--color-orange);
}

.recruit-card__title {
    font-size: var(--font-size-h3);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
    transition: color var(--transition-base);
    position: relative;
    padding-left: var(--spacing-sm);
}

.recruit-card__title::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--color-orange);
    font-size: 12px;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.recruit-card:hover .recruit-card__title::before {
    opacity: 1;
}

.recruit-card__caption {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.recruit-card__text {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   FAQ
   ============================================ */
/* 【追加】FAQカラムレイアウト */
.faq-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-xl);
}

.faq-column__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-orange);
}

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

.faq-item {
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    transition: border-color var(--transition-base);
}

.faq-item[open] {
    border-color: var(--color-orange);
}

.faq-item summary {
    padding: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    cursor: pointer;
    border-radius: 4px;
    transition: all var(--transition-base);
    border-left: 3px solid transparent;
}

.faq-item summary:hover {
    background-color: rgba(255, 107, 53, 0.05);
    border-left-color: var(--color-orange);
    align-items: center;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    list-style: none;
}

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

.faq-item summary::after {
    content: '+';
    font-size: 24px;
    font-weight: 300;
    color: var(--color-orange);
    transition: transform var(--transition-base);
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item summary::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0;
    background-color: var(--color-orange);
    transition: width var(--transition-base);
}

.faq-item summary:hover::before {
    width: 4px;
}

.faq-item summary:hover {
    background-color: var(--color-bg-secondary);
    padding-left: calc(var(--spacing-lg) + 4px);
}

.faq-item__body {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.faq-item__body p {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* ============================================
   Contact Form
   ============================================ */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

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

.contact-form__field label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-primary);
}

.contact-form__field label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.contact-form__field .required {
    color: var(--color-orange);
    font-weight: 700;
}

.contact-form__field input,
.contact-form__field select,
.contact-form__field textarea {
    padding: 16px 20px;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    transition: all var(--transition-base);
    line-height: 1.6;
    width: 100%;
}

.contact-form__field input:hover,
.contact-form__field select:hover,
.contact-form__field textarea:hover {
    border-color: var(--color-border-orange);
}

.contact-form__field input:focus,
.contact-form__field select:focus,
.contact-form__field textarea:focus {
    outline: none;
    border-color: var(--color-orange);
    box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.12);
    transform: translateY(-2px);
    background-color: #FFFFFF;
}

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

.contact-form__field input::placeholder,
.contact-form__field textarea::placeholder {
    color: var(--color-text-muted);
    opacity: 0.5;
}

.contact-form__label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
    display: block;
}

.contact-form__options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
}

.contact-form__option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: 4px;
    transition: background-color var(--transition-base);
}

.contact-form__option:hover {
    background-color: var(--color-bg-secondary);
}

.contact-form__option input[type="checkbox"] {
    width: auto;
    margin: 0;
    cursor: pointer;
}

.contact-form__option span {
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
}

.contact-form__actions {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-lg);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    text-decoration: none;
    border-radius: 8px;
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    border: 2px solid transparent;
    text-align: center;
    letter-spacing: 0.02em;
}

.btn--primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 40px;
    border-radius: 999px;
    border: none;
    font-weight: 600;
    background: linear-gradient(135deg, #ff6b3d, #ff9a3d);
    color: #fff;
    box-shadow: 0 12px 30px rgba(255, 107, 61, 0.35);
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease, opacity .2s ease;
    text-decoration: none;
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 45px rgba(255, 107, 61, 0.45);
    opacity: 0.96;
}

.btn--outline {
    background-color: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-text-primary);
    box-shadow: none;
}

.btn--outline:hover {
    background-color: var(--color-text-primary);
    color: var(--color-text-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn--ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 32px;
    border-radius: 999px;
    border: 1px solid rgba(0,0,0,0.16);
    background: transparent;
    color: inherit;
    cursor: pointer;
    transition: background .2s ease, color .2s ease, border-color .2s ease;
    text-decoration: none;
}

.btn--ghost:hover {
    background: rgba(0,0,0,0.04);
    border-color: rgba(0,0,0,0.25);
}

.btn--small {
    padding: 8px 24px;
    font-size: var(--font-size-sm);
}

.btn--large {
    padding: 24px 64px;
    font-size: var(--font-size-xl);
}

/* ============================================
   Site Footer
   ============================================ */
.site-footer {
    background-color: var(--color-bg-light);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
    position: relative;
}

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

.site-footer__nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    justify-content: center;
}

.site-footer__nav a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-base);
}

.site-footer__nav a:hover {
    color: var(--color-orange);
}

.site-footer__copy {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
    word-spacing: normal;
    letter-spacing: normal;
    white-space: normal;
}

.site-footer__pagetop {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    background-color: var(--color-bg-dark);
    color: var(--color-text-white);
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
}

.site-footer__pagetop.visible {
    opacity: 1;
    visibility: visible;
}

.site-footer__pagetop:hover {
    background-color: var(--color-orange);
    transform: translateY(-6px) scale(1.05);
    box-shadow: var(--shadow-orange);
}

.site-footer__pagetop:active {
    transform: translateY(-2px) scale(1.02);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .site-nav__list {
        display: none;
    }

    .site-nav__toggle {
        display: flex;
    }

    .hero__logo {
        font-size: clamp(48px, 12vw, 80px);
    }

    .hero__tagline {
        font-size: clamp(16px, 4vw, 20px);
    }

    .hero__subtitle {
        font-size: clamp(14px, 3vw, 18px);
    }

    .hero__copy {
        margin-bottom: var(--spacing-xl);
    }

    .hero__metrics {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
        padding: var(--spacing-md);
        margin-top: var(--spacing-xl);
    }

    .split-layout {
        grid-template-columns: 1fr;
    }

    .split-block__body {
        padding: var(--spacing-lg);
    }

    .keywords-carousel {
        gap: var(--spacing-md);
        padding: 0 var(--spacing-md);
    }

    .keyword-card {
        width: 240px;
    }

    .keywords-controls {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: center;
    }

    .keywords-view-all {
        font-size: 13px;
    }

    .keyword-card {
        width: 240px;
    }

    .keywords-controls {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: center;
    }

    .keywords-view-all {
        font-size: 13px;
    }

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

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

    .site-footer__nav {
        flex-direction: column;
        align-items: center;
    }

    .section__title {
        font-size: clamp(28px, 6vw, 40px);
    }

    .section__subtitle {
        font-size: clamp(14px, 3vw, 16px);
    }

    .interview-images {
        flex-direction: column;
        align-items: center;
    }

    .interview-img {
        width: 100%;
        max-width: 300px;
    }

    .interview-reviews-wrapper {
        padding: var(--spacing-lg) 0;
    }

    .interview-reviews-carousel {
        gap: var(--spacing-md);
        padding: 0 var(--spacing-md);
    }

    .review-card {
        padding: var(--spacing-md);
        width: 320px;
        min-height: auto;
    }

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

    .contact-benefits {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    /* 【追加】FAQカラムのレスポンシブ対応 */
    .faq-columns {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .faq-column__title {
        font-size: var(--font-size-lg);
    }
}

/* ============================================
   Fade In Animation
   ============================================ */
.fade-in {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 480px) {
    .section__inner {
        padding: 0 var(--spacing-sm);
    }

    .section {
        padding: var(--spacing-xl) 0;
    }

    .hero {
        min-height: 100vh;
        padding: 60px 16px 30px;
    }

    .hero__cta {
        margin-top: var(--spacing-lg);
    }

    .btn--large {
        padding: 16px 32px;
        font-size: var(--font-size-base);
    }

    .keywords-carousel {
        gap: var(--spacing-sm);
        padding: 0 var(--spacing-sm);
    }

    .keyword-card {
        width: 200px;
    }

    .keyword-card__title {
        font-size: 16px;
    }

    .keyword-card__caption {
        font-size: 12px;
    }

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

    .keyword-card {
        width: 200px;
    }

    .keyword-card__title {
        font-size: 16px;
    }

    .keyword-card__caption {
        font-size: 12px;
    }

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

    .stat-item__number {
        font-size: clamp(36px, 8vw, 56px);
    }

    .site-header__brand-main {
        font-size: 20px;
    }

    .site-header__brand-sub {
        font-size: 8px;
    }

    .interview-reviews-wrapper {
        padding: var(--spacing-md) 0;
    }

    .interview-reviews-carousel {
        gap: var(--spacing-sm);
        padding: 0 var(--spacing-sm);
    }

    .review-card {
        width: 260px;
        min-height: 240px;
    }
}

/* ============================================
   Stats Section
   ============================================ */
/* メトリクスはhero内に統合されたため、このスタイルは不要 */
/* .section--stats は削除 */

/* メトリクスはhero__metrics内で定義済み */

/* ============================================
   Contact Benefits
   ============================================ */
.contact-benefits {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-2xl);
}

.contact-benefit {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
}

.contact-benefit__icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-orange-gradient);
    color: var(--color-text-white);
    border-radius: 50%;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
}

.contact-benefit__text {
    font-weight: 500;
}

/* Contact Email */
.contact-email {
    text-align: center;
    margin-top: 40px;
}

.contact-email__text {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--color-text-secondary);
}

.contact-email__link {
    font-size: 20px;
    padding: 15px 40px;
}

.contact-form__privacy {
    margin-top: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-align: center;
}

.section__footer-note {
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-align: center;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 8px 30px rgba(255, 107, 53, 0.4);
    }
    50% {
        box-shadow: 0 8px 40px rgba(255, 107, 53, 0.6);
    }
}

/* ============================================
   Button Pulse Animation
   ============================================ */
.btn--pulse {
    animation: pulse-button 2s infinite;
    position: relative;
}

@keyframes pulse-button {
    0%, 100% {
        box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
    }
    50% {
        box-shadow: 0 4px 25px rgba(255, 107, 53, 0.5);
    }
}

.btn--pulse::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    border-radius: inherit;
    background: inherit;
    opacity: 0;
    transform: translate(-50%, -50%) scale(1);
    animation: ripple 2s infinite;
}

@keyframes ripple {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }
    100% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0;
    }
}

@media (max-width: 768px) {
    .contact-benefits {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero__metrics {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }
    
    .hero__metrics .stat-item__number {
        font-size: clamp(28px, 6vw, 40px);
    }

    /* モバイルではfixed背景を無効化 */
    .section--keywords,
    .section--works,
    .section--interview,
    .section--faq,
    .section--about,
    .section--campus,
    .section--recruit {
        background-attachment: scroll;
    }
}

/* ============================================
   Privacy Policy Page
   ============================================ */
.hero--simple {
    min-height: 60vh;
}

.hero--simple .hero__copy {
    margin-bottom: 0;
}

.section--policy {
    background: #ffffff;
}

/* 【追加】会社情報ページのスタイル */
.company-info {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--spacing-md) var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.company-info dt {
    font-weight: 700;
    color: var(--color-text-primary);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.company-info dd {
    color: var(--color-text-secondary);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
    margin: 0;
}

.company-info dd ul {
    margin-top: var(--spacing-xs);
    padding-left: var(--spacing-lg);
}

.company-info dd a {
    color: var(--color-orange);
    text-decoration: underline;
}

.company-info dd a:hover {
    color: var(--color-orange-dark);
}

@media (max-width: 768px) {
    .company-info {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .company-info dt {
        border-bottom: none;
        padding-bottom: var(--spacing-xs);
    }

    .company-info dd {
        border-bottom: 1px solid var(--color-border);
        padding-bottom: var(--spacing-md);
        margin-bottom: var(--spacing-sm);
    }
}
}

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

.policy-item {
    margin-bottom: var(--spacing-2xl);
}

.policy-item:last-child {
    margin-bottom: 0;
}

.policy-item__title {
    font-size: var(--font-size-h3);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-orange);
}

.policy-item__body {
    line-height: var(--line-height-base);
    color: var(--color-text-secondary);
}

.policy-item__body p {
    margin-bottom: var(--spacing-md);
}

.policy-item__body ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.policy-item__body li {
    margin-bottom: var(--spacing-xs);
    list-style-type: disc;
}

.policy-item__body a {
    color: var(--color-orange);
    text-decoration: underline;
}

.policy-item__body a:hover {
    color: var(--color-orange-dark);
}

/* ============================================
   Recruit Page
   ============================================ */
.hero--recruit {
    min-height: 70vh;
}

/* Training Section */
.section--training {
    background: #fafafa;
}

.training-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.training-card {
    background: #ffffff;
    padding: var(--spacing-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.training-card__title {
    font-size: var(--font-size-h3);
    font-weight: 700;
    color: var(--color-orange);
    margin-bottom: var(--spacing-md);
}

.training-card__period {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.training-card__text {
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-base);
    color: var(--color-text-secondary);
}

.training-card__list {
    list-style: none;
    margin-left: 0;
    padding-left: 0;
}

.training-card__list li {
    padding-left: var(--spacing-md);
    position: relative;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-secondary);
}

.training-card__list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-orange);
    font-weight: 700;
}

/* Flow Section */
.section--flow {
    background: #ffffff;
}

.flow-timeline {
    max-width: 800px;
    margin: var(--spacing-2xl) auto 0;
    position: relative;
}

.flow-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-orange);
}

.flow-step {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    position: relative;
}

.flow-step:last-child {
    margin-bottom: 0;
}

.flow-step__number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--color-orange);
    color: var(--color-text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    z-index: 1;
}

.flow-step__content {
    flex: 1;
    padding-top: var(--spacing-sm);
}

.flow-step__title {
    font-size: var(--font-size-h4);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.flow-step__text {
    line-height: var(--line-height-base);
    color: var(--color-text-secondary);
}

.flow-step__text a {
    color: var(--color-orange);
    text-decoration: underline;
}

/* Guideline Section */
.section--guideline {
    background: #fafafa;
}

.guideline-content {
    max-width: 1000px;
    margin: var(--spacing-2xl) auto 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-2xl);
}

.guideline-section {
    background: #ffffff;
    padding: var(--spacing-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

.guideline-section__title {
    font-size: var(--font-size-h3);
    font-weight: 700;
    color: var(--color-orange);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-orange);
}

.guideline-list {
    margin: 0;
}

.guideline-list__term {
    font-weight: 700;
    color: var(--color-text-primary);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
}

.guideline-list__term:first-child {
    margin-top: 0;
}

.guideline-list__desc {
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-base);
    color: var(--color-text-secondary);
}

.guideline-list__desc ul {
    margin-left: var(--spacing-lg);
    margin-top: var(--spacing-xs);
}

.guideline-list__desc li {
    margin-bottom: var(--spacing-xs);
    list-style-type: disc;
}

.guideline-note {
    margin-top: var(--spacing-2xl);
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* CTA Section */
.section--cta {
    background: #ffffff;
    color: var(--color-text-primary);
}

.section--cta .section__title,
.section--cta .section__subtitle {
    color: var(--color-text-primary);
    text-shadow: none;
}

.section--cta .section__eyebrow {
    color: var(--color-orange);
}

.section--cta .section__subtitle {
    color: var(--color-text-secondary);
}

.section--cta .section__footer-note {
    color: var(--color-text-secondary);
}

.section--cta .section__footer-note a {
    color: var(--color-orange);
    text-decoration: underline;
}

/* モバイル対応 */
/* 【追加】報酬・料金セクションのスタイル */
.payment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-xl);
}

.payment-card {
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

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

.payment-card__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-orange);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-orange);
}

.payment-card__body h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.payment-card__body h4:first-child {
    margin-top: 0;
}

.payment-card__body p {
    color: var(--color-text-secondary);
    line-height: var(--line-height-base);
    margin-bottom: var(--spacing-md);
}

.payment-card__body ul {
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
    color: var(--color-text-secondary);
}

.payment-card__body li {
    margin-bottom: var(--spacing-xs);
    line-height: var(--line-height-base);
}

@media (max-width: 768px) {
    .training-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

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

    .payment-card {
        padding: var(--spacing-lg);
    }
}

    .flow-timeline::before {
        left: 20px;
    }

    .flow-step__number {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-base);
    }

    .guideline-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .policy-item__body ul {
        margin-left: var(--spacing-md);
    }
}