/* ========================================
   カラー変数（CosmeCollege風 オーロラ調）
======================================== */
:root {
    /* オーロラグラデーション */
    --color-aurora-cyan: #A7E7FF;
    --color-aurora-lavender: #D8C7FF;
    --color-aurora-pink: #FFD6F0;
    
    /* 背景色 */
    --color-bg-white: #FAFCFF;
    --color-bg-light: #F0F7FF;
    --color-bg-pale: #E8F4FF;
    
    /* メインカラー */
    --color-primary: #2C5F8D;
    --color-primary-light: #4A8ABF;
    --color-primary-dark: #1A4060;
    
    /* アクセント */
    --color-accent: #FF6B8A;
    --color-accent-light: #FFB5C5;
    
    /* テキスト */
    --color-text-primary: #2C3E50;
    --color-text-secondary: #5F7489;
    --color-text-light: #8B9DAE;
    
    /* その他 */
    --color-white: #FFFFFF;
    --color-border: #E0EAF4;
    --color-shadow: rgba(44, 95, 141, 0.08);
    
    /* フォント */
    --font-serif: 'Noto Serif JP', serif;
    --font-sans: 'Noto Sans JP', sans-serif;
    --font-accent: 'Cormorant Garamond', 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;
    
    /* トランジション */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.8;
    color: var(--color-text-primary);
    background: linear-gradient(180deg, var(--color-bg-white) 0%, var(--color-bg-light) 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ========================================
   背景装飾（泡・キラキラ）
======================================== */
.background-decoration {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

/* 浮遊する泡 */
.bubble {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, 
        var(--color-aurora-cyan), 
        var(--color-aurora-lavender), 
        var(--color-aurora-pink));
    opacity: 0.15;
    animation: float 20s infinite ease-in-out;
}

.bubble-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.bubble-2 {
    width: 200px;
    height: 200px;
    top: 60%;
    right: 10%;
    animation-delay: 3s;
}

.bubble-3 {
    width: 250px;
    height: 250px;
    bottom: 15%;
    left: 20%;
    animation-delay: 6s;
}

.bubble-4 {
    width: 180px;
    height: 180px;
    top: 40%;
    right: 25%;
    animation-delay: 9s;
}

.bubble-5 {
    width: 220px;
    height: 220px;
    bottom: 30%;
    right: 5%;
    animation-delay: 12s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
    }
    25% {
        transform: translateY(-30px) translateX(20px);
    }
    50% {
        transform: translateY(-60px) translateX(-20px);
    }
    75% {
        transform: translateY(-30px) translateX(30px);
    }
}

/* 瞬くキラキラ */
.sparkle {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--color-white);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--color-white);
    animation: twinkle 3s infinite ease-in-out;
}

.sparkle-1 {
    top: 20%;
    left: 30%;
    animation-delay: 0s;
}

.sparkle-2 {
    top: 50%;
    right: 20%;
    animation-delay: 1s;
}

.sparkle-3 {
    bottom: 30%;
    left: 40%;
    animation-delay: 2s;
}

@keyframes twinkle {
    0%, 100% {
        opacity: 0;
        transform: scale(0);
    }
    50% {
        opacity: 1;
        transform: scale(1.5);
    }
}

/* ========================================
   レイアウト
======================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    position: relative;
    padding: var(--spacing-xxl) 0;
    z-index: 1;
}

.section-alt {
    background: var(--color-bg-pale);
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.section-subtitle {
    font-size: 1rem;
    text-align: center;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* ========================================
   ヘッダー
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px var(--color-shadow);
    z-index: 1000;
    transition: var(--transition-normal);
}

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

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary);
}

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

.nav-link {
    font-size: 0.95rem;
    color: var(--color-text-primary);
    text-decoration: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 8px;
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary);
    background: var(--color-bg-light);
}

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

.nav-link-cta:hover {
    background: var(--color-primary-dark);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-primary);
    cursor: pointer;
}

/* ========================================
   ヒーローセクション
======================================== */
.hero {
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero-image-container {
    position: relative;
    width: 100%;
    background: linear-gradient(180deg, var(--color-bg-white) 0%, var(--color-bg-light) 100%);
}

.hero-image {
    display: block;
    width: 100%;
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
}

.hero-cta-section {
    position: relative;
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--color-bg-light) 0%, var(--color-bg-pale) 100%);
    z-index: 2;
}

.hero-highlight-wrapper {
    margin-bottom: var(--spacing-lg);
}

.hero-highlight-box {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    align-items: stretch;
    flex-wrap: wrap;
    max-width: 900px;
    margin: 0 auto;
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 24px;
    box-shadow: 0 8px 32px rgba(44, 95, 141, 0.12);
}

.highlight-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    flex: 1;
    min-width: 280px;
}

.highlight-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-aurora-cyan), var(--color-aurora-lavender));
    border-radius: 50%;
    color: var(--color-white);
    font-size: 1.5rem;
}

.highlight-content {
    flex: 1;
}

.highlight-label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: 4px;
    font-weight: 500;
}

.highlight-value {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: 4px;
}

.highlight-note {
    font-size: 0.75rem;
    color: var(--color-text-light);
    line-height: 1.4;
}

.highlight-divider {
    width: 2px;
    background: linear-gradient(180deg, 
        transparent, 
        var(--color-border), 
        transparent);
    flex-shrink: 0;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

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

.fade-in {
    animation: fadeInUp 1s ease-out;
}

/* ========================================
   ボタン
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(44, 95, 141, 0.2);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

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

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

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

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.9rem;
}

/* ========================================
   サービスカード
======================================== */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.service-card {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 20px;
    box-shadow: 0 4px 20px var(--color-shadow);
    transition: var(--transition-normal);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(44, 95, 141, 0.15);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-aurora-cyan), var(--color-aurora-lavender));
    color: var(--color-white);
    font-size: 2rem;
}

.service-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.service-description {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.service-list {
    list-style: none;
    text-align: left;
    margin-bottom: var(--spacing-md);
}

.service-list li {
    padding: var(--spacing-xs) 0;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.service-list i {
    color: var(--color-primary);
    margin-right: var(--spacing-xs);
}

.service-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-top: var(--spacing-md);
}

/* ========================================
   ポートフォリオ
======================================== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.portfolio-item {
    background: var(--color-white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px var(--color-shadow);
    transition: var(--transition-normal);
}

.portfolio-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(44, 95, 141, 0.15);
}

.portfolio-image-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.portfolio-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

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

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(44, 95, 141, 0.95), 
        rgba(74, 138, 191, 0.90));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-overlay-content {
    text-align: center;
    color: var(--color-white);
    padding: var(--spacing-md);
}

.portfolio-overlay-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.portfolio-overlay-description {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
}

.portfolio-info {
    padding: var(--spacing-md);
}

.portfolio-category {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
}

.category-badge {
    font-size: 0.75rem;
    padding: 4px 12px;
    background: var(--color-bg-light);
    color: var(--color-primary);
    border-radius: 20px;
    font-weight: 500;
}

.portfolio-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

.portfolio-description {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.portfolio-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.tag {
    font-size: 0.75rem;
    padding: 4px 10px;
    background: var(--color-bg-pale);
    color: var(--color-text-secondary);
    border-radius: 12px;
}

/* ========================================
   対象顧客
======================================== */
.target-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.target-card {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 20px;
    box-shadow: 0 4px 20px var(--color-shadow);
    text-align: center;
    transition: var(--transition-normal);
}

.target-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(44, 95, 141, 0.15);
}

.target-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-aurora-lavender), var(--color-aurora-pink));
    color: var(--color-white);
    font-size: 1.5rem;
}

.target-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.target-description {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ========================================
   料金プラン
======================================== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.pricing-card {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: 20px;
    box-shadow: 0 4px 20px var(--color-shadow);
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(44, 95, 141, 0.15);
}

.pricing-card-featured {
    border: 3px solid var(--color-primary);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-accent);
    color: var(--color-white);
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.pricing-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.pricing-price {
    margin-bottom: var(--spacing-lg);
}

.price-amount {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.price-unit {
    font-size: 1rem;
    color: var(--color-text-secondary);
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.pricing-features li {
    padding: var(--spacing-sm) 0;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    border-bottom: 1px solid var(--color-border);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features i {
    color: var(--color-primary);
    margin-right: var(--spacing-sm);
}

.pricing-notes {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 20px;
    box-shadow: 0 4px 20px var(--color-shadow);
    margin-top: var(--spacing-xl);
}

.notes-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.notes-list {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.notes-list li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    color: var(--color-text-secondary);
    position: relative;
}

.notes-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.notes-text {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ========================================
   制作フロー
======================================== */
.flow-container {
    max-width: 800px;
    margin: var(--spacing-xl) auto 0;
    position: relative;
}

.flow-container::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 40px;
    width: 4px;
    height: calc(100% - 80px);
    background: linear-gradient(180deg, 
        var(--color-aurora-cyan), 
        var(--color-aurora-lavender), 
        var(--color-aurora-pink));
    border-radius: 2px;
}

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

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

.flow-number {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(44, 95, 141, 0.3);
    z-index: 1;
}

.flow-content {
    flex: 1;
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 20px;
    box-shadow: 0 4px 20px var(--color-shadow);
}

.flow-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

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

/* ========================================
   FAQ
======================================== */
.faq-container {
    max-width: 800px;
    margin: var(--spacing-xl) auto 0;
}

.faq-item {
    background: var(--color-white);
    border-radius: 20px;
    margin-bottom: var(--spacing-md);
    box-shadow: 0 4px 20px var(--color-shadow);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background: none;
    border: none;
    font-family: var(--font-sans);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-primary);
    text-align: left;
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.faq-question i {
    transition: var(--transition-fast);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

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

.faq-answer p {
    padding: 0 var(--spacing-lg) var(--spacing-md);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* ========================================
   お問い合わせ
======================================== */
.contact-template {
    background: var(--color-white);
    border-radius: 20px;
    box-shadow: 0 4px 20px var(--color-shadow);
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
}

.template-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-bg-light);
    border-bottom: 2px solid var(--color-border);
}

.template-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary);
}

.btn-copy {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-copy:hover {
    background: var(--color-primary-dark);
}

.template-content {
    padding: var(--spacing-lg);
    font-family: monospace;
    font-size: 0.9rem;
    color: var(--color-text-primary);
    line-height: 1.8;
    white-space: pre-wrap;
    overflow-x: auto;
}

.contact-links {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: 50px;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition-normal);
}

.contact-link-coconala {
    background: var(--color-primary);
    color: var(--color-white);
}

.contact-link-coconala:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(44, 95, 141, 0.2);
}

.contact-link-instagram {
    background: linear-gradient(135deg, #833AB4, #FD1D1D, #FCAF45);
    color: var(--color-white);
}

.contact-link-instagram:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(131, 58, 180, 0.3);
}

.contact-note {
    text-align: center;
    font-size: 1rem;
    color: var(--color-text-secondary);
}

.contact-note i {
    color: var(--color-primary);
    margin-right: var(--spacing-xs);
}

/* ========================================
   フッター
======================================== */
.footer {
    background: var(--color-primary-dark);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
}

.footer-nav {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

.footer-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

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

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border-radius: 50%;
    font-size: 1.2rem;
    text-decoration: none;
    transition: var(--transition-fast);
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
}

/* ========================================
   ページトップボタン
======================================== */
.page-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(44, 95, 141, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 999;
}

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

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

/* ========================================
   スクロールアニメーション
======================================== */
[data-scroll] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-scroll].visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   レスポンシブ
======================================== */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .header-content {
        padding: var(--spacing-sm);
    }
    
    .nav {
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        background: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: 0 4px 20px var(--color-shadow);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-20px);
        transition: var(--transition-normal);
    }
    
    .nav.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero {
        padding-top: 60px;
    }
    
    .hero-cta-section {
        padding: var(--spacing-lg) 0;
    }
    
    .hero-highlight-box {
        flex-direction: column;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }
    
    .highlight-item {
        min-width: 100%;
    }
    
    .highlight-divider {
        width: 100%;
        height: 2px;
        background: linear-gradient(90deg, 
            transparent, 
            var(--color-border), 
            transparent);
    }
    
    .highlight-value {
        font-size: 1.5rem;
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .service-grid,
    .target-grid,
    .pricing-grid,
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .flow-container::before {
        left: 30px;
    }
    
    .flow-item {
        gap: var(--spacing-md);
    }
    
    .flow-number {
        width: 60px;
        height: 60px;
        font-size: 1.2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn-large {
        width: 100%;
    }
    
    .contact-links {
        flex-direction: column;
    }
    
    .contact-link {
        width: 100%;
        justify-content: center;
    }
    
    .page-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }
}