/* ==========================================
   CSS リセットと基本設定
   ========================================== */

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    left: -9999px;
    z-index: 999;
    padding: 1em;
    background-color: #000;
    color: #fff;
    text-decoration: none;
}

.skip-link:focus {
    left: 50%;
    transform: translateX(-50%);
    top: 0;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ==========================================
   CSS 変数定義
   ========================================== */
:root {
    /* カラーパレット */
    --primary-color: #000000;
    --secondary-color: #ffffff;
    --accent-color: #000000;
    --dark-color: #1a1a1a;
    --gray-darker: #2a2a2a;
    --gray-dark: #3a3a3a;
    --gray-medium: #6a6a6a;
    --gray-light: #a0a0a0;
    --gray-lighter: #f5f5f5;
    --gray-lightest: #fafafa;
    
    /* フォント */
    --font-primary: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-secondary: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* アニメーション */
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* シャドウ */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 16px 32px rgba(0, 0, 0, 0.12);
}

/* ==========================================
   基本要素
   ========================================== */
body {
    font-family: var(--font-primary);
    color: var(--dark-color);
    line-height: 1.6;
    overflow-x: hidden;
    background: white;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
    width: 100%;
    overflow: hidden;
}

/* ==========================================
   ヘッダー
   ========================================== */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition-base);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    transition: var(--transition-base);
}

/* .logo:hover - ホバーエフェクトを無効化 */

.logo-image {
    width: 60px;
    height: 60px;
    object-fit: contain;
    transition: var(--transition-base);
}

.logo-text-container {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.logo-text {
    font-family: 'Bodoni Moda', serif;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 0.5px;
    line-height: 1;
}

.logo-sub {
    font-family: 'Bodoni Moda', serif;
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 1.5px;
    color: var(--gray-medium);
    margin-top: 2px;
}

.nav-menu {
    display: flex;
    gap: 2.5rem;
    list-style: none;
    align-items: center;
}

.nav-link {
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--dark-color);
    text-decoration: none;
    position: relative;
    transition: var(--transition-base);
    padding: 0.3rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 0;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 5px;
    background: none;
    border: none;
    outline: none;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--dark-color);
    transition: var(--transition-base);
}

/* ==========================================
   ヒーローセクション
   ========================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f5f5f5 0%, #ffffff 50%, #f0f0f0 100%); /* ヒーローと同系の背景 */
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero-content {
    text-align: center;
    z-index: 2;
    padding: 2rem;
}

.hero-title {
    font-family: 'Bodoni Moda', serif;
    font-size: clamp(3rem, 10vw, 8rem);
    font-weight: 400;
    line-height: 0.9;
    letter-spacing: -0.02em;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--gray-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.5rem);
    color: var(--gray-medium);
    margin-bottom: 3rem;
    letter-spacing: 0.1em;
}

.hero-cta {
    display: inline-block;
    padding: 1rem 3rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 0;
    font-weight: 500;
    transition: var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.hero-cta:hover {
    transform: none;
    box-shadow: var(--shadow-lg);
}

/* ==========================================
   共通セクションスタイル
   ========================================== */
section {
    padding: 100px 0;
    position: relative;
}

/* セクション間の境界線 */
section:not(.hero):not(.about):not(:last-child)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.1) 50%, transparent 100%);
}

/* 上下の間隔を確保 */
section + section {
    margin-top: 40px;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header.center {
    text-align: center;
}

.section-label {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: transparent;
    background-clip: text;
    -webkit-background-clip: text;
    background-image: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.6) 100%);
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.4);
    padding: 0.5rem 1rem;
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-primary);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--gray-medium);
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================
   About セクション
   ========================================== */
.about {
    background: #000000;
    color: white;
    position: relative;
    overflow: hidden;
    padding: 120px 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 60px;
}

/* Aboutセクションの上部境界線 */
.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
}

.about::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 150px;
    background: linear-gradient(to top, #000000 0%, #000000 60%, transparent 100%);
    z-index: 10;
    pointer-events: none;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
    width: 100%;
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 60px;
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    max-width: 100%;
    position: relative;
    z-index: 5;
    padding-right: 2rem;
}

.about .section-header {
    text-align: left;
    margin-bottom: 2rem;
    position: relative;
    z-index: 10;
    grid-column: 1 / -1;
}

.about .section-header.center {
    text-align: center;
}

.about .section-title {
    font-size: clamp(3rem, 7vw, 5rem);
    line-height: 1;
    margin-bottom: 0;
    letter-spacing: -0.03em;
    color: #ffffff;
    position: relative;
    z-index: 10;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.lead-text {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.8;
    margin-bottom: 0;
    color: rgba(255, 255, 255, 0.95);
    letter-spacing: 0.02em;
    position: relative;
    padding-left: 2rem;
}

.lead-text::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.5rem;
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent-color) 0%, transparent 100%);
}

.description {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: 2;
    margin-bottom: 0;
    font-weight: 300;
    letter-spacing: 0.02em;
    max-width: 700px;
    text-align: justify;
    text-justify: inter-ideograph;
    padding-left: 2rem;
}

.stats {
    display: flex;
    gap: 4rem;
    justify-content: center;
    align-items: center;
    margin-top: 4rem;
    padding: 2rem 0;
    max-width: 100%;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
    position: relative;
    flex: 1;
    padding: 2rem 1.5rem;
    min-height: auto;
    justify-content: center;
    transition: all 0.3s ease;
    text-align: center;
}

.stat-item:hover {
    transform: translateY(-2px);
}

.stat-item:hover .stat-number {
    color: #ffffff;
    text-shadow: 0 2px 8px rgba(255, 255, 255, 0.1);
}

.stat-item:hover .stat-label {
    color: rgba(255, 255, 255, 0.95);
}


.stat-number {
    display: block;
    font-family: var(--font-primary);
    font-size: 3.6rem;
    font-weight: 900;
    color: white;
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin-bottom: 1.2rem;
    white-space: nowrap;
    text-shadow: 0 3px 6px rgba(0, 0, 0, 0.4);
    transition: all 0.3s ease;
}

.stat-label {
    font-size: 1.1rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.4;
    letter-spacing: 0.08em;
    font-family: var(--font-primary);
    white-space: nowrap;
    text-transform: uppercase;
    transition: all 0.3s ease;
    margin-top: 0.5rem;
}

/* 右側配置の動画コンテナ（安全化） */
.about-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    background: transparent;
    z-index: 0;
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: visible;
}

.video-container-right {
    position: relative;
    width: 100%;
    height: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    background: transparent;
    padding: 0;
    border-radius: 0;
    overflow: visible;
}

.logo-video-right {
    width: 100%;
    height: auto;
    max-width: 900px;
    object-fit: contain;
    background: transparent;
    border: 2px solid #000000;
    outline: none;
    filter: none;
    transition: var(--transition-base);
    display: block;
    border-radius: 16px;
    margin: 0;
    position: relative;
    z-index: 0;
    mix-blend-mode: screen;
    transform: scale(1.3);
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.15), inset 0 0 0 1px rgba(0, 0, 0, 0.1);
    mask: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,1) 70%, rgba(0,0,0,0) 100%);
    -webkit-mask: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,1) 70%, rgba(0,0,0,0) 100%);
}

/* .logo-video-right:hover - ホバーエフェクトを無効化 */

/* ==========================================
   サービスセクション
   ========================================== */
.services {
    background: #fafafa;
    padding: 60px 0;
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 5%;
    right: 5%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #e0e0e0, transparent);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.service-card {
    background: white;
    padding: 2rem 1.5rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid #f0f0f0;
    position: relative;
    overflow: hidden;
    border-radius: 12px;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: #000;
    transform: translateX(-100%);
    transition: transform 0.4s ease;
}

.service-card:hover::before {
    transform: translateX(-100%);
}

.service-card:hover {
    transform: none;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    background: #ffffff;
}

.service-icon {
    width: 240px;
    height: 240px;
    margin: 0 auto 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    border-radius: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.service-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    border-color: #e9ecef;
    transform: none;
}

.service-card:hover .service-icon img {
    transform: none;
}

.service-title {
    font-size: 1rem; /* 1.2rem -> 1rem */
    font-weight: 600;
    color: #000000;
    margin-bottom: 0.4rem;
    font-family: var(--font-primary);
    line-height: 1.25; /* 1.3 -> 1.25 */
}

.service-subtitle {
    font-size: 0.85rem;
    color: #999;
    margin-bottom: 0;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-align: center;
}

.service-description {
    font-size: 0.85rem;
    color: #666;
    line-height: 1.6;
    text-align: center;
}

.service-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 0;
}

.service-list li {
    padding: 0.5rem 0;
    color: #666;
    font-size: 0.9rem;
    text-align: center;
    position: relative;
}

.service-list li::before {
    content: "•";
    color: #000;
    font-weight: bold;
    margin-right: 0.5rem;
}

/* ==========================================
   Process セクション
   ========================================== */
.process {
    background: linear-gradient(135deg, #f5f5f5 0%, #ffffff 50%, #f0f0f0 100%); /* ヒーローと同系の背景 */
    padding: 100px 0;
    position: relative;
}

.process::before {
    content: '';
    position: absolute;
    top: 0;
    left: 5%;
    right: 5%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #e0e0e0, transparent);
}

.process-flow {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    flex-wrap: nowrap;
    gap: 1rem;
    margin-top: 4rem;
    position: relative;
    padding: 2rem 0;
}

.process-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    align-items: center;
    text-align: center;
    flex: none;
    width: 200px;
    margin-bottom: 2rem;
    position: relative;
    padding: 1rem;
    background: transparent;
    transition: all 0.3s ease;
}

.process-step:hover {
    transform: none; /* 以前の translateY(-5px) を無効化 */
}

.process-step.final-step {
    flex: none;
    width: 200px;
}

.step-circle {
    width: 200px;
    height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border-radius: 50%;
    flex-shrink: 0;
    position: relative;
    transition: all 0.3s ease;
    margin-bottom: 0; /* 円の外の余白をなくす */
    padding: 12px; /* 円内に余白を確保 */
    gap: 8px; /* 内部要素の間隔 */
    overflow: hidden; /* はみ出し防止 */
    text-align: center;
    /* Hero風の軽い表現 */
    border: 1px solid rgba(0, 0, 0, 0.15);
    box-shadow: none;
}

.process-step:hover .step-circle {
    transform: none; /* 以前の scale(1.05) を無効化 */
    box-shadow: none; /* 通常時と同じ影に固定 */
}

/* .step-circle:hover - ホバーエフェクト無効化 */

.step-number {
    color: #000000;
    font-size: 1.8rem; /* 円内に収まるサイズに調整 */
    font-weight: 800;
    font-family: var(--font-primary);
}

.step-content {
    position: static; /* 絶対配置を解除して円内フローに参加 */
    top: auto;
    left: auto;
    transform: none;
    width: 100%;
    text-align: center;
    pointer-events: auto;
}

.step-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #000000;
    margin-bottom: 0.5rem;
    font-family: var(--font-primary);
    line-height: 1.3;
}

.step-description {
    font-size: 0.9rem; /* 1rem -> 0.9rem */
    color: #666666;
    line-height: 1.35; /* 1.4 -> 1.35 */
    margin: 0;
    font-weight: 400;
    max-width: 90%;
    margin: 0 auto;
}

.flow-arrow {
    display: block;
    width: 40px;
    height: 20px;
    fill: #000000;
    margin: 0 1rem;
}

.flow-arrow svg {
    display: block;
}

/* .process-step:hover .flow-arrow - ホバーエフェクト無効化 */

.final-step .flow-arrow {
    display: none;
}

/* レスポンシブ対応 */
@media (max-width: 1024px) {
    .process-flow {
        flex-direction: column;
        gap: 2.5rem;
        align-items: center;
    }
    
    .process-step {
        width: 200px;
        max-width: 90%;
    }

@media (max-width: 768px) {
    .process-step {
        width: 180px;
        padding: 1rem;
    }
    
    .step-circle {
        width: 80px;
        height: 80px;
    }
    
    .step-number {
        font-size: 2rem;
    }
    
    .step-title {
        font-size: 1.1rem;
    }
    
         .step-description {
         font-size: 1rem;
     }
 }

/* ==========================================
   納期情報 - Apple風デザイン
   ========================================== */
.delivery-info {
    margin-top: 6rem;
    text-align: center;
    background: transparent;
    padding: 4rem 3rem;
    border-radius: 24px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.15);
}


@keyframes subtle-rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.delivery-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1d1d1f;
    margin-bottom: 1rem;
    font-family: var(--font-primary);
    letter-spacing: -0.02em;
}

.delivery-subtitle {
    font-size: 1.2rem;
    color: #86868b;
    margin-bottom: 3rem;
    font-weight: 400;
}

.delivery-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.timeline-item {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #007aff, #5856d6);
    transform: translateY(-100%);
    transition: transform 0.3s ease;
}



.timeline-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, #007aff, #5856d6);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    font-weight: 700;
}

.timeline-label {
    font-size: 1rem;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.timeline-duration {
    font-size: 2rem;
    font-weight: 700;
    color: #1d1d1f;
    letter-spacing: -0.03em;
    font-family: var(--font-primary);
    margin-bottom: 0.5rem;
}

.timeline-description {
    font-size: 0.9rem;
    color: #86868b;
    line-height: 1.5;
}

.delivery-notes {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 2rem;
    margin-top: 2rem;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.delivery-note {
    font-size: 0.95rem;
    color: #515154;
    margin: 0.5rem 0;
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    text-align: left;
    justify-content: center;
}



/* レスポンシブ対応 */
@media (max-width: 768px) {
    .delivery-info {
        padding: 3rem 1.5rem;
        margin-top: 4rem;
    }
    
    .delivery-timeline {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .timeline-item {
        padding: 1.5rem;
    }
    
    .timeline-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .delivery-title {
        font-size: 2rem;
    }
    
    .delivery-subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    .timeline-duration {
        font-size: 1.6rem;
    }
    
    .timeline-label {
        font-size: 0.9rem;
    }
    
    .timeline-description {
        font-size: 0.85rem;
    }
 }

/* ==========================================
   Works セクション
   ========================================== */
.works {
    background: #ffffff;
    padding: 100px 0;
    position: relative;
    z-index: 1;
    overflow-x: hidden;
    width: 100%;
    box-sizing: border-box;
}

.digital-column .column-title { margin-bottom: 1rem; }

/* Digital Content Grid Layout */
.digital-content-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: flex-start;
    justify-items: center;
}

/* Network Diagram Container */
.network-diagram-container {
    width: 100%;
    background: transparent;
    border-radius: 8px;
    overflow: visible;
    min-height: 340px;
}

/* Digital Layout */
.digital-layout {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Digital Design Images */
.digital-design-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.digital-image-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    background: white;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.digital-image-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.digital-design-img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    display: block;
}

.digital-image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 1.5rem 1rem 1rem;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.digital-image-item:hover .digital-image-overlay {
    transform: translateY(0);
}

.digital-image-overlay h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: white;
}

.digital-image-overlay p {
    font-size: 0.9rem;
    line-height: 1.4;
    opacity: 0.9;
    margin: 0;
}

/* PC specific styles for network diagram */
@media (min-width: 1024px) {
    .network-diagram-container {
        min-height: 400px;
    }
    
    .digital-layout {
        flex-direction: row;
        align-items: center;
        gap: 2rem;
    }
    
    .network-diagram-container {
        flex: 2;
        min-height: 400px;
    }
    
    .digital-design-images {
        flex: 1;
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }
    
    .digital-design-img {
        height: 120px;
    }
    
    .digital-image-overlay h4 {
        font-size: 0.9rem;
    }
    
    .digital-image-overlay p {
        font-size: 0.8rem;
    }
}
    
    .digital-content-grid {
        padding: 2rem;
    }
}

/* Small Digital Network */
.digital-network-small {
    position: relative;
    width: 100%;
    max-width: 200px;
    min-height: 180px;
    border-radius: 12px;
    background: linear-gradient(180deg, #ffffff 0%, #ffffff 100%);
    box-shadow: var(--shadow-md);
    padding: 1rem;
    overflow: hidden;
    box-sizing: border-box;
    margin: 0;
}

.digital-network-small .dn-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #fff;
    border: 1px solid rgba(0,0,0,0.1);
    display: grid;
    place-items: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.digital-network-small .dn-center .dn-logo {
    width: 12px;
    height: 12px;
    max-width: 12px;
    max-height: 12px;
    object-fit: contain;
    object-position: center;
}

.digital-network-small .dn-node {
    position: absolute;
    width: 80px;
    height: 80px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    color: #111;
    font-weight: 600;
    text-align: center;
    background: #f8f9fa;
    box-shadow: 0 6px 18px rgba(0,0,0,0.06);
    padding: 0.5rem;
    box-sizing: border-box;
}

.digital-network-small .dn-node span { 
    padding: 0 0.3rem; 
    font-size: 0.7rem; 
    line-height: 1.2;
}

.digital-network-small .dn-top { top: 1rem; left: 50%; transform: translateX(-50%); }
.digital-network-small .dn-bottom { bottom: 1rem; left: 50%; transform: translateX(-50%); }
.digital-network-small .dn-left { left: 1rem; top: 50%; transform: translateY(-50%); }
.digital-network-small .dn-right { right: 1rem; top: 50%; transform: translateY(-50%); }

.digital-network-small .dn-line { 
    position: absolute; 
    background: linear-gradient(90deg, rgba(0,0,0,0.12), rgba(0,0,0,0.04)); 
}

.digital-network-small .dn-line-top { 
    left: 50%; 
    top: calc(1rem + 80px); 
    transform: translateX(-50%); 
    width: 1px; 
    height: calc(50% - (1rem + 80px) - 24px); 
}

.digital-network-small .dn-line-bottom { 
    left: 50%; 
    bottom: calc(1rem + 80px); 
    transform: translateX(-50%); 
    width: 1px; 
    height: calc(50% - (1rem + 80px) - 24px); 
}

.digital-network-small .dn-line-left { 
    top: 50%; 
    left: calc(1rem + 80px); 
    transform: translateY(-50%); 
    height: 1px; 
    width: calc(50% - (1rem + 80px) - 24px); 
}

.digital-network-small .dn-line-right { 
    top: 50%; 
    right: calc(1rem + 80px); 
    transform: translateY(-50%); 
    height: 1px; 
    width: calc(50% - (1rem + 80px) - 24px); 
}

/* Flyer Gallery */
.flyer-gallery {
    width: 100%;
}

.flyer-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.flyer-item {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    aspect-ratio: 3/4;
}

.flyer-item:hover {
    transform: none;
    box-shadow: var(--shadow-md);
}

.flyer-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.flyer-item:hover img {
    transform: none;
}

/* SVGネットワーク図のスタイル */
.network-diagram-responsive {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0.5rem;
    background: transparent;
}

.network-svg {
    width: 100%;
    max-width: 480px;
    height: auto;
    background: transparent;
}


.network-svg text {
    font-family: 'Noto Sans JP', sans-serif;
    pointer-events: none;
}

/* PC版限定：アートワーク画像 */
.digital-layout {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.artwork-showcase {
    display: none;
    flex-direction: row;
    gap: 1rem;
    justify-content: center;
    align-items: center;
}

.artwork-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* PC版（1024px以上）でのみアートワーク画像を表示 */
@media (min-width: 1024px) {
    .digital-layout {
        flex-direction: row;
        align-items: center;
        gap: 2rem;
    }
    
    .network-diagram-responsive {
        flex: 0 0 auto;
        max-width: 480px;
        justify-content: flex-start;
    }
    
    .artwork-showcase {
        display: flex;
        flex: 1;
        max-width: 400px;
        justify-content: flex-start;
    }
}

/* Responsive Design for Digital Content */
@media (max-width: 768px) {
    .digital-content-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .network-diagram-responsive {
        padding: 0.25rem;
    }
    
    .network-svg {
        max-width: 100%;
    }
    
    .digital-network-small {
        max-width: 100%;
        margin: 0 auto;
    }
    
    .flyer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
}

@media (max-width: 480px) {
    .network-diagram-responsive {
        padding: 0.25rem;
    }
    
    .network-svg {
        max-width: 100%;
        width: 100%;
    }
    
    .network-svg text {
        font-size: 10px;
    }
    
    .network-svg circle[r="45"] {
        r: 40;
    }
    
    .flyer-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* ==========================================
   Digital Network Optimized Styles
   ========================================== */
.digital-network-optimized {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    background: transparent;
    overflow: hidden;
    margin: 20px auto;
    width: 200px !important;
    max-width: 200px !important;
    height: 200px !important;
    transition: all 0.3s ease;
}

.digital-network-optimized:hover {
    transform: none;
}

.dn-center-responsive {
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
    position: relative;
    width: 200px !important;
    max-width: 200px !important;
    height: 200px !important;
    max-height: 200px !important;
    overflow: hidden;
}

.dn-logo-responsive {
    display: block;
    object-fit: contain;
    height: auto;
    transition: transform 0.3s ease;
    transform: scale(1.0);
    margin: 0;
    max-width: 200px !important;
    width: 200px !important;
    max-height: 200px !important;
}

.digital-network-optimized:hover .dn-logo-responsive {
    transform: scale(1.0);
}

/* Decorative Elements - Hidden */
.dn-line-top-responsive, 
.dn-line-right-responsive {
    display: none;
}

/* Responsive Breakpoints for Digital Network Optimized */
@media (min-width: 1025px) {
    .digital-network-optimized {
        max-width: 200px !important;
        width: 200px !important;
        height: 200px !important;
        padding: 1rem;
    }
    
    .dn-logo-responsive {
        max-width: 200px !important;
        width: 200px !important;
    }
}

@media (min-width: 768px) and (max-width: 1024px) {
    .digital-network-optimized {
        max-width: 200px !important;
        width: 200px !important;
        height: 200px !important;
        padding: 2rem;
    }
    
    .dn-logo-responsive {
        max-width: 200px !important;
        width: 200px !important;
    }
}

@media (max-width: 767px) {
    .digital-network-optimized {
        max-width: 200px !important;
        width: 200px !important;
        height: 200px !important;
        padding: 1.5rem;
        margin: 15px auto;
    }
    
    .dn-logo-responsive {
        max-width: 200px !important;
        width: 200px !important;
    }
}

@media (max-width: 480px) {
    .digital-network-optimized {
        max-width: 200px !important;
        width: 200px !important;
        height: 200px !important;
        padding: 1rem;
    }
    
    .dn-logo-responsive {
        max-width: 200px !important;
        width: 200px !important;
    }
}

.works::before {
    content: '';
    position: absolute;
    top: 0;
    left: 5%;
    right: 5%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #e0e0e0, transparent);
}

.works-two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
    max-width: 100%;
    overflow: hidden;
    width: 100%;
    box-sizing: border-box;
}

.works-column {
    position: relative;
    padding: 0;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    box-sizing: border-box;
}

.column-title {
    font-size: 1.6rem;
    font-weight: 500;
    color: #000;
    margin-bottom: 2.5rem;
    text-align: center;
    position: relative;
    padding-bottom: 1rem;
}

.column-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: #000;
}

.works-grid-column {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    margin-top: 1.25rem;
    max-width: 100%;
    overflow: hidden;
}

.works-grid-column .work-item {
    transition: all 0.3s ease;
}

/* アニメーション設定 */
/* アニメーション削除 */

.works-grid-column .work-item:hover {
    transform: none;
    z-index: 1;
    box-shadow: var(--shadow-md);
}

.work-item {
    background: white;
    border-radius: 0;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.work-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1 / 1;
}

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

.work-item:hover .work-image img {
    transform: none;
}

.work-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
    opacity: 0;
    transition: var(--transition-base);
}

.work-item:hover .work-overlay {
    opacity: 0;
}

.work-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem;
    color: white;
    transform: translateY(100%);
    transition: var(--transition-base);
}

.work-item:hover .work-info {
    transform: translateY(100%);
}

.work-info h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.work-info p {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 0.5rem;
}

.work-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    font-size: 0.8rem;
    backdrop-filter: blur(10px);
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    font-size: 1rem;
}

/* View More Projects Button */
.view-more-container {
    text-align: center;
    margin-top: 4rem;
    padding-top: 2rem;
}

.view-more-btn {
    display: inline-block;
    padding: 1rem 3rem;
    background: #000;
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
    border: 2px solid #000;
}

.view-more-btn:hover {
    background: transparent;
    color: #000;
    transform: none;
}

/* ==========================================
   コンタクトセクション
   ========================================== */
.contact {
    background: #000000;
    color: #ffffff;
    padding: 120px 0;
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 5%;
    right: 5%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #333333, transparent);
}

.contact .section-title {
    color: #ffffff;
}

.contact .section-subtitle {
    color: #cccccc;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 5rem;
    align-items: center;
    margin-top: 3rem;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #ffffff;
    font-weight: 300;
    letter-spacing: 0.02em;
}

.contact-info p {
    color: #aaaaaa;
    margin-bottom: 3rem;
    line-height: 1.8;
    font-size: 1.1rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    color: #cccccc;
    font-size: 1.1rem;
    padding: 1rem 0;
    transition: all 0.3s ease;
}



.instagram-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.5rem;
    background: #ffffff;
    color: #000000 !important;
    text-decoration: none !important;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    margin-left: 0.5rem;
    border: 2px solid transparent;
}

.instagram-btn:hover {
    background: #ffffff;
    color: #000000 !important;
    border-color: transparent;
    transform: none;
}

.contact-item strong {
    min-width: 100px;
    color: #ffffff;
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
}

.qr-container {
    background: #111111;
    border: 1px solid #222222;
    padding: 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.qr-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.02) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.contact-form-container {
    background: #111111;
    border: 1px solid #222222;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.contact-form-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.02) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

.contact-form {
    position: relative;
    z-index: 2;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    color: #ffffff;
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    background: #1a1a1a;
    border: 1px solid #333333;
    color: #ffffff;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #ffffff;
    background: #222222;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.submit-btn {
    width: 100%;
    padding: 1rem 1.5rem;
    background: #ffffff;
    color: #000000;
    border: none;
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.submit-btn:hover {
    background: #ffffff;
    color: #000000;
    transform: none;
}

/* ==========================================
   フッター
   ========================================== */
.footer {
    background: #000000;
    color: white;
    padding: 2rem 0;
    text-align: center;
    position: relative;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-base);
}

/* .footer-links a:hover エフェクトを無効化 */

.copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.8rem;
    font-weight: 300;
    letter-spacing: 0.5px;
}

/* 改行制御用のクラス */
.pc-break {
    display: inline;
}

.mobile-break {
    display: none;
}

@media (max-width: 768px) {
    .pc-break {
        display: none;
    }
    
    .mobile-break {
        display: inline;
    }
}

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

/* 大画面表示 */
@media (min-width: 1200px) {
    .works-grid-column {
        grid-template-columns: repeat(4, 1fr);
        gap: 1rem;
    }
}

/* タブレット表示 */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-content {
        max-width: 100%;
        gap: 2rem;
    }
    
    .about .section-title {
        font-size: clamp(2.5rem, 6vw, 4rem);
    }
    
    .lead-text {
        font-size: 1.3rem;
        padding-left: 1.5rem;
    }
    
    .description {
        font-size: 1rem;
        padding-left: 1.5rem;
    }
    
    .stats {
        gap: 2rem;
        padding: 3rem 0;
        flex-wrap: wrap;
        margin-top: 3rem;
        justify-content: center;
    }
    
    .stat-item {
        flex: 1 1 calc(50% - 1rem);
        min-width: 180px;
        padding: 1.8rem 2rem;
        min-height: 120px;
        border-radius: 10px;
        gap: 1rem;
    }
    
    .logo-video-right {
        max-width: 620px;
        width: 100%;
        margin: 0;
        transform: scale(1.15);
        mask: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,1) 70%, rgba(0,0,0,0) 100%);
        -webkit-mask: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,1) 70%, rgba(0,0,0,0) 100%);
    }
    
    .works-two-column {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
    
    .service-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

/* モバイル表示 */
@media (max-width: 768px) {
    /* セクション間隔の調整 */
    section {
        padding: 60px 0;
    }
    
    section + section {
        margin-top: 20px;
    }
    
    /* 境界線の幅をモバイル用に調整 */
    section:not(.hero):not(.about):not(:last-child)::after {
        width: 90%;
    }
    
    .about {
        padding: 80px 0;
        margin-top: 30px;
    }
    
    .about::before {
        width: 90%;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: clamp(2.5rem, 8vw, 5rem);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        padding: 40px 30px;
    }
    
    .works-two-column {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .stats {
        flex-direction: column;
        gap: 2rem;
        padding: 2.5rem 1rem;
        margin-top: 2.5rem;
        justify-content: center;
        align-items: center;
    }
    
    .stat-item {
        align-items: center;
        flex-direction: column;
        gap: 1rem;
        padding: 2rem 1.5rem;
        min-height: 100px;
        justify-content: center;
        width: 100%;
        max-width: 300px;
        border-radius: 10px;
        text-align: center;
    }
    
    .stat-item:not(:last-child)::after {
        display: none;
    }
    
    .stat-number {
        font-size: 2.4rem;
        margin-bottom: 0;
        line-height: 1.2;
        font-weight: 800;
        letter-spacing: -0.02em;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }
     
    .stat-label {
        font-size: 0.9rem;
        line-height: 1.4;
        color: rgba(255, 255, 255, 0.85);
        font-weight: 600;
        letter-spacing: 0.02em;
        text-transform: uppercase;
    }
    
    .logo-video-right {
        max-width: 520px;
        width: 100%;
        background: transparent !important;
        mix-blend-mode: screen;
        margin: 0;
        border: 2px solid #000000;
        transform: scale(1.1);
        box-shadow: 0 18px 50px rgba(0, 0, 0, 0.15), inset 0 0 0 1px rgba(0, 0, 0, 0.1);
        mask: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,1) 70%, rgba(0,0,0,0) 100%);
        -webkit-mask: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,1) 70%, rgba(0,0,0,0) 100%);
    }
    
    .about-visual {
        position: relative;
        background: transparent !important;
        margin-top: 2rem;
    }
    
    .works-grid-column {
        grid-template-columns: repeat(2, 1fr);
        gap: 0;
    }
    
    .service-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .qr-placeholder {
        width: 200px;
        height: 200px;
        font-size: 1rem;
    }

    .qr-container {
        padding: 2rem;
    }
}

/* ==========================================
   Specificity fixes for .logo-video-right (About section)
   ========================================== */
@media (max-width: 1024px) {
  section.about .logo-video-right {
    max-width: 480px;
    width: 100%;
    margin: 0;
  }
}
@media (max-width: 768px) {
  section.about .logo-video-right {
    max-width: 380px;
    width: 100%;
    margin: 0;
  }
}

/* ==========================================
   Specificity fixes for .logo-video-right (About section)
   ========================================== */
@media (max-width: 1024px) {
  section.about .logo-video-right {
    max-width: 480px;
    width: 100%;
    margin: 0;
  }
}
@media (max-width: 768px) {
  section.about .logo-video-right {
    max-width: 380px;
    width: 100%;
    margin: 0;
  }
}

/* About visual containment fix */
/* overflow可視化に変更したため、以前のcontainment fixは撤回 */
section.about .logo-video-right {
  width: min(100%, 560px);
  max-width: 560px;
  margin: 0;
  position: relative;
  z-index: 0;
  display: block;
  background: transparent !important;
  mix-blend-mode: screen;
}

/* Digital Network v2 */
.digital-network {
  position: relative;
  width: 100%;
  max-width: 100%;
  min-height: 520px;
  border-radius: 16px;
  background: linear-gradient(180deg, #ffffff 0%, #ffffff 100%);
  box-shadow: var(--shadow-md);
  padding: 2.5rem;
  overflow: hidden;
  box-sizing: border-box;
  margin: 0 auto;
}

.digital-network .dn-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid rgba(0,0,0,0.1);
  display: grid;
  place-items: center;
  box-shadow: 0 8px 22px rgba(0,0,0,0.08);
}
.digital-network .dn-center .dn-logo {
  width: 48px;
  height: auto;
  object-fit: contain;
}

.digital-network .dn-node {
  position: absolute;
  width: 120px;
  height: 120px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  color: #111;
  font-weight: 700;
  text-align: center;
  background: #f8f9fa;
  box-shadow: 0 10px 30px rgba(0,0,0,0.07);
  padding: 0.8rem;
  box-sizing: border-box;
}
.digital-network .dn-node span { padding: 0 0.6rem; font-size: 0.9rem; }

.digital-network .dn-top { top: 1.5rem; left: 50%; transform: translateX(-50%); }
.digital-network .dn-bottom { bottom: 1.5rem; left: 50%; transform: translateX(-50%); }
.digital-network .dn-left { left: 1.5rem; top: 50%; transform: translateY(-50%); }
.digital-network .dn-right { right: 1.5rem; top: 50%; transform: translateY(-50%); }

.digital-network .dn-line { position: absolute; background: linear-gradient(90deg, rgba(0,0,0,0.15), rgba(0,0,0,0.05)); }
.digital-network .dn-line-top { left: 50%; top: calc(1.5rem + 120px); transform: translateX(-50%); width: 2px; height: calc(50% - (1.5rem + 120px) - 36px); }
.digital-network .dn-line-bottom { left: 50%; bottom: calc(1.5rem + 120px); transform: translateX(-50%); width: 2px; height: calc(50% - (1.5rem + 120px) - 36px); }
.digital-network .dn-line-left { top: 50%; left: calc(1.5rem + 120px); transform: translateY(-50%); height: 2px; width: calc(50% - (1.5rem + 120px) - 36px); }
.digital-network .dn-line-right { top: 50%; right: calc(1.5rem + 120px); transform: translateY(-50%); height: 2px; width: calc(50% - (1.5rem + 120px) - 36px); }

@media (max-width: 1024px) {
  .digital-network { min-height: 420px; padding: 2rem; }
  .digital-network .dn-center { width: 64px; height: 64px; }
  .digital-network .dn-center .dn-logo { width: 42px; }
  .digital-network .dn-node { width: 110px; height: 110px; }
  .digital-network .dn-line-top { top: calc(1.25rem + 110px); height: calc(50% - (1.25rem + 110px) - 32px); }
  .digital-network .dn-line-bottom { bottom: calc(1.25rem + 110px); height: calc(50% - (1.25rem + 110px) - 32px); }
  .digital-network .dn-line-left { left: calc(1.25rem + 110px); width: calc(50% - (1.25rem + 110px) - 32px); }
  .digital-network .dn-line-right { right: calc(1.25rem + 110px); width: calc(50% - (1.25rem + 110px) - 32px); }
}
@media (max-width: 768px) {
  .digital-network { min-height: 360px; padding: 1.5rem; }
  .digital-network .dn-center { width: 56px; height: 56px; }
  .digital-network .dn-center .dn-logo { width: 36px; }
  .digital-network .dn-node { width: 120px; height: 120px; border-radius: 12px; font-size: 0.95rem; }
  .digital-network .dn-line-top { top: calc(0.75rem + 120px); height: calc(50% - (0.75rem + 60px)); }
  .digital-network .dn-line-bottom { bottom: calc(0.75rem + 120px); height: calc(50% - (0.75rem + 60px)); }
  .digital-network .dn-line-left { left: calc(0.75rem + 120px); width: calc(50% - (0.75rem + 60px)); }
  .digital-network .dn-line-right { right: calc(0.75rem + 120px); width: calc(50% - (0.75rem + 60px)); }
}
@media (max-width: 560px) {
  .digital-network { min-height: 300px; padding: 1rem; }
  .digital-network .dn-center { width: 48px; height: 48px; }
  .digital-network .dn-center .dn-logo { width: 32px; }
  .digital-network .dn-node { width: 100px; height: 100px; border-radius: 10px; font-size: 0.88rem; }
  .digital-network .dn-line-top { top: calc(0.5rem + 100px); height: calc(50% - (0.5rem + 50px)); }
  .digital-network .dn-line-bottom { bottom: calc(0.5rem + 100px); height: calc(50% - (0.5rem + 50px)); }
  .digital-network .dn-line-left { left: calc(0.5rem + 100px); width: calc(50% - (0.5rem + 50px)); }
  .digital-network .dn-line-right { right: calc(0.5rem + 100px); width: calc(50% - (0.5rem + 50px)); }
}

@media (max-width: 768px) {
    .process-step {
        width: 180px;
        padding: 1rem;
    }
    
    .step-circle {
        width: 80px;
        height: 80px;
    }
    
    .step-number {
        font-size: 2rem;
    }
    
    .step-title {
        font-size: 1.1rem;
    }
    
         .step-description {
         font-size: 1rem;
     }
 }

/* ==========================================
   納期情報 - Apple風デザイン
   ========================================== */
.delivery-info {
    margin-top: 6rem;
    text-align: center;
    background: transparent;
    padding: 4rem 3rem;
    border-radius: 24px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.15);
}


@keyframes subtle-rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.delivery-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1d1d1f;
    margin-bottom: 1rem;
    font-family: var(--font-secondary);
    letter-spacing: -0.02em;
}

.delivery-subtitle {
    font-size: 1.2rem;
    color: #86868b;
    margin-bottom: 3rem;
    font-weight: 400;
}

.delivery-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.timeline-item {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #007aff, #5856d6);
    transform: translateY(-100%);
    transition: transform 0.3s ease;
}



.timeline-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, #007aff, #5856d6);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    font-weight: 700;
}

.timeline-label {
    font-size: 1rem;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.timeline-duration {
    font-size: 2rem;
    font-weight: 700;
    color: #1d1d1f;
    letter-spacing: -0.03em;
    font-family: var(--font-secondary);
    margin-bottom: 0.5rem;
}

.timeline-description {
    font-size: 0.9rem;
    color: #86868b;
    line-height: 1.5;
}

.delivery-notes {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 2rem;
    margin-top: 2rem;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.delivery-note {
    font-size: 0.95rem;
    color: #515154;
    margin: 0.5rem 0;
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    text-align: left;
    justify-content: center;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .delivery-info {
        padding: 3rem 1.5rem;
        margin-top: 4rem;
    }
    
    .delivery-timeline {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .timeline-item {
        padding: 1.5rem;
    }
    
    .timeline-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .delivery-title {
        font-size: 2rem;
    }
    
    .delivery-subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    .timeline-duration {
        font-size: 1.6rem;
    }
    
    .timeline-label {
        font-size: 0.9rem;
    }
    
    .timeline-description {
        font-size: 0.85rem;
    }
 }

/* ==========================================
   Works セクション
   ========================================== */
.works {
    background: #ffffff;
    padding: 100px 0;
    position: relative;
}

.works::before {
    content: '';
    position: absolute;
    top: 0;
    left: 5%;
    right: 5%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #e0e0e0, transparent);
}

.works-two-column {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
    margin-top: 3rem;
    max-width: 100%;
    overflow: hidden;
    width: 100%;
    box-sizing: border-box;
}

.works-column {
    position: relative;
    padding: 0;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    box-sizing: border-box;
}

.column-title {
    font-size: 1.6rem;
    font-weight: 500;
    color: #000;
    margin-bottom: 2.5rem;
    text-align: center;
    position: relative;
    padding-bottom: 1rem;
}

.column-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: #000;
}

.works-grid-column {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    margin-top: 1.25rem;
}

.works-grid-column .work-item {
    transition: all 0.3s ease;
}

/* アニメーション設定 */
/* アニメーション削除 */

.works-grid-column .work-item:hover {
    transform: scale(1.03);
    z-index: 10;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.work-item {
    background: white;
    border-radius: 0;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.work-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1 / 1;
}

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

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

.work-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
    opacity: 0;
    transition: var(--transition-base);
}

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

.work-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem;
    color: white;
    transform: translateY(100%);
    transition: var(--transition-base);
}

.work-item:hover .work-info {
    transform: translateY(0);
}

.work-info h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.work-info p {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 0.5rem;
}

.work-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    font-size: 0.8rem;
    backdrop-filter: blur(10px);
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    font-size: 1rem;
}

/* View More Projects Button */
.view-more-container {
    text-align: center;
    margin-top: 4rem;
    padding-top: 2rem;
}

.view-more-btn {
    display: inline-block;
    padding: 1rem 3rem;
    background: #000;
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
    border: 2px solid #000;
}

.view-more-btn:hover {
    background: transparent;
    color: #000;
    transform: translateY(-2px);
}

/* ==========================================
   コンタクトセクション
   ========================================== */
.contact {
    background: #000000;
    color: #ffffff;
    padding: 120px 0;
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 5%;
    right: 5%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #333333, transparent);
}

.contact .section-title {
    color: #ffffff;
}

.contact .section-subtitle {
    color: #cccccc;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 5rem;
    align-items: center;
    margin-top: 3rem;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #ffffff;
    font-weight: 300;
    letter-spacing: 0.02em;
}

.contact-info p {
    color: #aaaaaa;
    margin-bottom: 3rem;
    line-height: 1.8;
    font-size: 1.1rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    color: #cccccc;
    font-size: 1.1rem;
    padding: 1rem 0;
    transition: all 0.3s ease;
}



.instagram-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.5rem;
    background: #ffffff;
    color: #000000 !important;
    text-decoration: none !important;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    margin-left: 0.5rem;
    border: 2px solid transparent;
}

.instagram-btn:hover {
    background: transparent;
    color: #ffffff !important;
    border-color: #ffffff;
    transform: translateY(-2px);
}

.contact-item strong {
    min-width: 100px;
    color: #ffffff;
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
}

.qr-container {
    background: #111111;
    border: 1px solid #222222;
    padding: 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.qr-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.02) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.contact-form-container {
    background: #111111;
    border: 1px solid #222222;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.contact-form-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.02) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

.contact-form {
    position: relative;
    z-index: 2;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    color: #ffffff;
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    background: #1a1a1a;
    border: 1px solid #333333;
    color: #ffffff;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #ffffff;
    background: #222222;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.submit-btn {
    width: 100%;
    padding: 1rem 1.5rem;
    background: #ffffff;
    color: #000000;
    border: none;
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.submit-btn:hover {
    background: #000000;
    color: #ffffff;
    transform: translateY(-2px);
}

/* ==========================================
   フッター
   ========================================== */
.footer {
    background: #000000;
    color: white;
    padding: 2rem 0;
    text-align: center;
    position: relative;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-base);
}

/* .footer-links a:hover エフェクトを無効化 */

.copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.8rem;
    font-weight: 300;
    letter-spacing: 0.5px;
}

/* 改行制御用のクラス */
.pc-break {
    display: inline;
}

.mobile-break {
    display: none;
}

@media (max-width: 768px) {
    .pc-break {
        display: none;
    }
    
    .mobile-break {
        display: inline;
    }
}

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

/* タブレット表示 */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-content {
        max-width: 100%;
        gap: 2rem;
    }
    
    .about .section-title {
        font-size: clamp(2.5rem, 6vw, 4rem);
    }
    
    .lead-text {
        font-size: 1.3rem;
        padding-left: 1.5rem;
    }
    
    .description {
        font-size: 1rem;
        padding-left: 1.5rem;
    }
    
    .stats {
        gap: 2rem;
        padding: 2rem 0;
        flex-wrap: wrap;
    }
    
    .stat-item {
        flex: 1 1 calc(50% - 1rem);
        min-width: 140px;
    }
    
    .logo-video-right {
        max-width: 480px;
        width: 100%;
        margin: 0;
    }
    
    .works-two-column {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .service-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

/* モバイル表示 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: clamp(2.5rem, 8vw, 5rem);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        padding: 40px 30px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .stats {
        flex-direction: column;
        gap: 2rem;
        padding: 2rem 0;
        margin-top: 2rem;
    }
    
    .stat-item {
        align-items: center;
        flex-direction: row;
        gap: 1rem;
        padding: 1rem;
    }
    
    .stat-item:not(:last-child)::after {
        display: none;
    }
    
    .stat-number {
        font-size: 2rem;
        margin-bottom: 0;
    }
     
    .stat-label {
        font-size: 0.9rem;
    }
    
    .logo-video-right {
        max-width: 420px;
        width: 100%;
        background: transparent !important;
        mix-blend-mode: screen;
        margin: 0;
        transform: scale(1.1);
        mask: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,1) 70%, rgba(0,0,0,0) 100%);
        -webkit-mask: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,1) 70%, rgba(0,0,0,0) 100%);
    }
    
    .about-visual {
        position: relative;
        background: transparent !important;
        margin-top: 2rem;
    }
    
    .works-grid-column {
        grid-template-columns: repeat(2, 1fr);
        gap: 0;
    }
    
    .service-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .qr-placeholder {
        width: 200px;
        height: 200px;
        font-size: 1rem;
    }

    .qr-container {
        padding: 2rem;
    }
}

/* ==========================================
   MOBILE FIRST OPTIMIZATION - ENHANCED
   ========================================== */

/* Mobile Menu Overlay */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
    z-index: 998;
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}
/* Mobile First Optimization Styles */
@media (max-width: 768px) {
    /* Enhanced Navigation */
    .header {
        padding: 0;
        position: fixed;
        top: 0;
        width: 100%;
        z-index: 1000;
    }
    
    .nav {
        padding: 1rem 20px;
        height: 60px;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100vh;
        background: white;
        flex-direction: column;
        padding-top: 80px;
        transition: transform 0.3s ease-out;
        transform: translateX(-100%);
        z-index: 999;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .nav-menu.active {
        transform: translateX(0);
        left: 0;
    }
    
    .nav-link {
        display: block;
        padding: 20px 24px;
        font-size: 18px;
        min-height: 60px;
        border-bottom: 1px solid rgba(0,0,0,0.05);
    }
    
    .nav-toggle {
        width: 44px;
        height: 44px;
        padding: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    /* Hero Mobile */
    .hero {
        padding: 100px 20px 60px;
        min-height: 100vh;
    }
    
    .hero-content {
        padding: 0;
    }
    
    .hero-title {
        font-size: clamp(2.2rem, 7vw, 3.5rem);
        line-height: 1.2;
        margin-bottom: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        line-height: 1.5;
        margin-bottom: 2rem;
    }
    
    .hero-cta {
        padding: 16px 32px;
        font-size: 16px;
        min-width: 200px;
        width: 100%;
        max-width: 280px;
    }
    
    /* About Mobile */
    .about {
        padding: 60px 0;
        min-height: auto;
    }
    
    .about-grid {
        padding: 0 20px;
        gap: 2.5rem;
        max-width: 100%;
    }
    
    .about .section-header {
        text-align: center;
        margin-bottom: 2.5rem;
    }
    
    .about .section-title {
        font-size: 2.2rem;
        margin-bottom: 1.5rem;
        text-align: center;
    }
    
    .about-content {
        gap: 2rem;
        padding-right: 0;
    }
    
    .lead-text {
        font-size: 1.1rem;
        padding-left: 0;
        text-align: center;
        line-height: 1.7;
        margin-bottom: 1.5rem;
    }
    
    .lead-text::before {
        display: none;
    }
    
    .description {
        font-size: 0.95rem;
        padding-left: 0;
        line-height: 1.8;
        text-align: left;
        margin-bottom: 2rem;
    }
    
    .stats {
        flex-direction: column;
        gap: 1.5rem;
        padding: 2rem 1rem;
        margin-top: 1.5rem;
        background: rgba(255, 255, 255, 0.03);
        border-radius: 12px;
    }
    
    .stat-item {
        align-items: center;
        flex-direction: row;
        gap: 1.5rem;
        padding: 1.8rem 1.5rem;
        background: rgba(255, 255, 255, 0.05);
        border-radius: 12px;
        border: 1px solid rgba(255, 255, 255, 0.1);
        min-height: 90px;
        justify-content: flex-start;
    }
    
    .stat-item:not(:last-child)::after {
        display: none;
    }
    
    .stat-number {
        font-size: 2rem;
        margin-bottom: 0;
        font-weight: 800;
        color: #ffffff;
        line-height: 1.2;
        letter-spacing: -0.02em;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }
     
    .stat-label {
        font-size: 0.85rem;
        color: rgba(255, 255, 255, 0.85);
        font-weight: 600;
        line-height: 1.4;
        letter-spacing: 0.02em;
        text-transform: uppercase;
    }
    
    .about-visual {
        position: relative;
        background: transparent !important;
        margin-top: 1rem;
        display: flex;
        justify-content: center;
    }
    
    .logo-video-right {
        max-width: 580px;
        width: 100%;
        background: transparent !important;
        mix-blend-mode: screen;
        margin: 0;
    }
    
    /* Services Mobile */
    .service-card {
        padding: 24px 20px;
        margin-bottom: 16px;
    }
    
    .service-icon {
        width: 160px;
        height: 160px;
        margin-bottom: 1.5rem;
    }
    
    .service-title {
        font-size: 1.1rem;
        margin-bottom: 0.5rem;
    }
    
    .service-description {
        font-size: 0.95rem;
        line-height: 1.6;
    }
    
    /* Process Mobile */
    .process {
        padding: 60px 0;
    }
    
    .process-flow {
        gap: 1.5rem;
        padding: 1rem 0;
    }
    
    .process-step {
        width: 180px;
        padding: 0;
        margin-bottom: 1rem;
    }
    
    .step-circle {
        width: 160px;
        height: 160px;
        padding: 18px;
    }
    
    .step-number {
        font-size: 1.5rem;
    }
    
    .step-title {
        font-size: 1rem;
        line-height: 1.2;
    }
    
    .step-description {
        font-size: 0.85rem;
        line-height: 1.3;
    }
    
    /* Works Mobile */
    .works {
        padding: 60px 0;
    }
    
    .works-two-column {
        gap: 3rem;
    }
    
    .works-column {
        padding: 0 20px;
    }
    
    .column-title {
        font-size: 1.5rem;
        margin-bottom: 2rem;
    }
    
    .works-grid-column {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    
    .work-item {
        border-radius: 8px;
        overflow: hidden;
    }
    
    /* Digital Design Mobile */
    .digital-content-grid {
        padding: 0 20px;
    }
    
    .digital-network-optimized {
        max-width: 300px !important;
        width: 100% !important;
        height: auto !important;
        margin: 0 auto;
    }
    
    .dn-logo-responsive {
        max-width: 280px !important;
        width: 100% !important;
        height: auto !important;
    }
    
    /* Contact Mobile */
    .contact {
        padding: 60px 0;
    }
    
    .contact-info h3 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .contact-info p {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    .contact-item {
        padding: 16px 0;
        font-size: 1rem;
    }
    
    .instagram-btn {
        padding: 12px 20px;
        margin-top: 8px;
        width: 100%;
        max-width: 200px;
    }
    
    /* Form Mobile */
    .form-group label {
        font-size: 0.9rem;
        margin-bottom: 8px;
    }
    
    .form-group input,
    .form-group textarea,
    .form-group select {
        font-size: 16px; /* Prevents zoom on iOS */
        padding: 12px;
    }
    
    .submit-btn {
        padding: 16px;
        font-size: 1rem;
    }
    
    /* Footer Mobile */
    .footer {
        padding: 2rem 20px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 12px;
    }
    
    /* Touch and Interaction Improvements */
    button,
    a,
    .nav-link,
    .hero-cta,
    .view-more-btn,
    .instagram-btn,
    .submit-btn {
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }
    
    /* Scroll Performance */
    * {
        -webkit-overflow-scrolling: touch;
    }
    
    /* Image Optimization */
    img {
        max-width: 100%;
        height: auto;
    }
    
    /* Prevent Horizontal Scroll */
    body {
        overflow-x: hidden;
    }
    
    /* Improved Spacing */
    .section-header {
        margin-bottom: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: 1rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
}

/* Small Mobile (iPhone SE, etc.) */
@media (max-width: 375px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .works-grid-column {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .service-icon {
        width: 140px;
        height: 140px;
    }
    
    .step-circle {
        width: 140px;
        height: 140px;
        padding: 16px;
    }
    
    .step-number {
        font-size: 1.4rem;
    }
    
    .step-title {
        font-size: 1rem;
        line-height: 1.2;
    }
    
    .step-description {
        font-size: 0.8rem;
        line-height: 1.3;
    }
    
    .process-step {
        width: 160px;
        margin-bottom: 0.5rem;
    }
    
    /* About Small Mobile */
    .about {
        padding: 50px 0;
    }
    
    .about-grid {
        padding: 0 16px;
        gap: 2rem;
    }
    
    .about .section-title {
        font-size: 2rem;
    }
    
    .lead-text {
        font-size: 1rem;
        line-height: 1.6;
    }
    
    .description {
        font-size: 0.9rem;
        line-height: 1.7;
    }
    
    .stats {
        padding: 1.5rem 0.8rem;
        gap: 1.2rem;
    }
    
    .stat-item {
        padding: 1rem;
    }
    
    .stat-number {
        font-size: 1.6rem;
    }
    
    .stat-label {
        font-size: 0.85rem;
    }
    
    .logo-video-right {
         max-width: 380px;
         border: 2px solid #000000;
         transform: scale(1.1);
         box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15), inset 0 0 0 1px rgba(0, 0, 0, 0.1);
         mask: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,1) 70%, rgba(0,0,0,0) 100%);
         -webkit-mask: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,1) 70%, rgba(0,0,0,0) 100%);
     }
}

/* Landscape Mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 60px 20px 40px;
    }
    
    .nav-menu {
        padding-top: 60px;
    }
}

/* Accessibility - Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* デスクトップ版専用スタイル */
@media (min-width: 1025px) {
  .logo-video-right {
    width: 350px !important;
    height: 350px !important;
    object-fit: cover !important;
    margin-left: 0.5rem !important;
    margin-right: 2rem !important;
    transform: translateX(-20px) !important;
    font-size: 0.95em !important;
    word-break: keep-all !important;
    white-space: nowrap !important;
    overflow-wrap: normal !important;
  }
  
  .stat-label {
    word-break: keep-all !important;
    white-space: nowrap !important;
    overflow-wrap: normal !important;
    font-size: 0.75em !important;
    margin: 0 0.5rem !important;
  }
}