/* ================================================================================
   株式会社ラスク コーポレートサイト - プレミアムリニューアル版
   デザインコンセプト: ラグジュアリー × インテリジェンス × イノベーション
   ターゲット: 大手企業決裁者 × 優秀なエンジニア
   ================================================================================ */

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Premium Navy Colors - 深みのあるインテリジェンス */
    --color-navy-dark: #0A1628;
    --color-navy-primary: #1B2B44;
    --color-navy-medium: #2D3E5F;
    --color-navy-light: #3D5170;
    
    /* Luxury Gold Colors - 上質なアクセント */
    --color-gold-primary: #B8935A;
    --color-gold-light: #D4B88C;
    --color-gold-dark: #9A7A48;
    --color-blue-accent: #4A90E2;
    --color-cyan-accent: #5DADE2;
    
    /* Neutral Colors - クリーンで洗練 */
    --color-white: #FFFFFF;
    --color-gray-50: #F8F9FA;
    --color-gray-100: #F1F3F5;
    --color-gray-200: #E9ECEF;
    --color-gray-300: #DEE2E6;
    --color-gray-400: #CED4DA;
    --color-gray-600: #6C757D;
    --color-gray-800: #343A40;
    --color-gray-900: #212529;
    
    /* Text Colors */
    --color-text-primary: #0A1628;
    --color-text-secondary: #2D3E5F;
    --color-text-tertiary: #718096;
    --color-text-white: #FFFFFF;
    
    /* Legacy Support */
    --color-soft-beige: #F8F9FA;
    --color-warm-sand: #E9ECEF;
    --color-text-dark: #1B2B44;
    --color-text-medium: #4A5568;
    --color-navy: #1B2B44;
    --color-gold: #B8935A;
    --color-light-gray: #F1F3F5;
    
    /* Typography - Poppins for English, Noto Sans JP for Japanese */
    --font-primary: "Poppins", "Noto Sans JP", sans-serif;
    --font-heading: "Poppins", "Noto Sans JP", sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;
    
    /* Spacing - ゆとりのある高級感あるレイアウト */
    --section-padding-desktop: 200px;
    --section-padding-tablet: 140px;
    --section-padding-mobile: 100px;
    --section-gap-desktop: 160px;
    --section-gap-tablet: 100px;
    --section-gap-mobile: 80px;
    --container-max-width: 1200px;
    --container-padding-desktop: 80px;
    --container-padding-mobile: 24px;
    
    /* Transitions */
    --transition-base: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Shadows - より深く豊かな影 */
    --shadow-sm: 0 2px 8px rgba(10, 22, 40, 0.08);
    --shadow-md: 0 4px 16px rgba(10, 22, 40, 0.12);
    --shadow-lg: 0 8px 32px rgba(10, 22, 40, 0.16);
    --shadow-xl: 0 16px 48px rgba(10, 22, 40, 0.20);
    --shadow-2xl: 0 24px 64px rgba(10, 22, 40, 0.28);
    --shadow-inner: inset 0 2px 4px rgba(10, 22, 40, 0.06);
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-blur: 20px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text-primary);
    background-color: var(--color-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding-desktop);
}

/* ================================================================================
   Header Navigation - グラスモーフィズムの洗練されたヘッダー
   ================================================================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 85px;
    background: rgba(10, 22, 40, 0.85);
    backdrop-filter: blur(var(--glass-blur)) saturate(180%);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%);
    z-index: 1000;
    transition: all var(--transition-base);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header.scrolled {
    background: rgba(10, 22, 40, 0.95);
    box-shadow: var(--shadow-lg);
    border-bottom-color: rgba(184, 147, 90, 0.2);
}

.header-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding-desktop);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
}

.logo {
    flex-shrink: 0;
}

.logo a {
    display: block;
    transition: all var(--transition-base);
}

.logo img {
    height: 32px;
    width: auto;
    display: block;
    transition: all var(--transition-base);
}

.logo a:hover img {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.nav-menu {
    display: flex;
    gap: 48px;
    align-items: center;
}

.nav-link {
    font-size: 15px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    position: relative;
    padding: 10px 0;
    transition: all var(--transition-base);
    letter-spacing: 0.03em;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-gold-primary), transparent);
    transition: width var(--transition-bounce);
    border-radius: 2px;
}

.nav-link:hover {
    color: var(--color-gold-light);
    transform: translateY(-2px);
}

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

.btn-contact {
    padding: 14px 36px;
    background: linear-gradient(135deg, var(--color-gold-primary) 0%, var(--color-gold-light) 50%, var(--color-gold-primary) 100%);
    background-size: 200% auto;
    color: var(--color-white);
    border-radius: 32px;
    font-weight: var(--font-weight-bold);
    font-size: 15px;
    transition: all var(--transition-base);
    box-shadow: 0 4px 16px rgba(184, 147, 90, 0.4);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    flex-shrink: 0;
}

.btn-contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.btn-contact:hover {
    background-position: right center;
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(184, 147, 90, 0.5);
}

.btn-contact:hover::before {
    left: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger span {
    width: 28px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-gold-primary), var(--color-gold-light));
    transition: all var(--transition-base);
    border-radius: 2px;
}

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

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

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

/* ================================================================================
   Hero Section - ラグジュアリーなダークヒーロー
   ================================================================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-navy-dark) 0%, var(--color-navy-primary) 40%, var(--color-navy-medium) 100%);
    position: relative;
    padding: 140px 24px 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 15% 25%, rgba(184, 147, 90, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 85% 75%, rgba(74, 144, 226, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(93, 173, 226, 0.08) 0%, transparent 60%);
    pointer-events: none;
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.4;
    pointer-events: none;
}

/* Hero Slider */
.hero-slider {
    position: relative;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    z-index: 1;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    visibility: hidden;
    transform: translateX(100px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;  /* パララックス効果 */
}

/* Background images for each slide */
.hero-slide:nth-child(1) {
    background-image: linear-gradient(rgba(10, 22, 40, 0.75), rgba(10, 22, 40, 0.75)), 
                      url('https://images.unsplash.com/photo-1451187580459-43490279c0fa?w=1920&q=80');
}

.hero-slide:nth-child(2) {
    background-image: linear-gradient(rgba(10, 22, 40, 0.7), rgba(10, 22, 40, 0.7)), 
                      url('https://images.unsplash.com/photo-1552664730-d307ca884978?w=1920&q=80');
}

.hero-slide:nth-child(3) {
    background-image: linear-gradient(rgba(10, 22, 40, 0.65), rgba(10, 22, 40, 0.65)), 
                      url('https://images.unsplash.com/photo-1522071820081-009f0129c71c?w=1920&q=80');
}

.hero-slide.active {
    position: relative;
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.hero-slide.prev {
    transform: translateX(-100px);
}

.hero-content {
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-label {
    display: inline-block;
    padding: 8px 24px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    font-size: 14px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-gold-light);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 32px;
}

.hero-title {
    font-size: 78px;
    font-weight: var(--font-weight-black);
    color: var(--color-white);
    line-height: 1.12;
    letter-spacing: -0.04em;
    margin-bottom: 36px;
    text-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.hero-slide.active .hero-title {
    animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-subtitle {
    font-size: 24px;
    color: rgba(255, 255, 255, 0.92);
    line-height: 1.75;
    margin-bottom: 64px;
    font-weight: var(--font-weight-regular);
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

.hero-slide.active .hero-subtitle {
    animation: fadeInUp 1s ease-out 0.6s both;
}
    letter-spacing: 0.02em;
}

.hero-buttons {
    display: flex;
    gap: 28px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-slide.active .hero-buttons {
    animation: fadeInUp 1s ease-out 0.9s both;
}

/* Hero Navigation */
.hero-nav {
    position: absolute;
    bottom: 120px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 32px;
    z-index: 10;
}

.hero-nav-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    font-size: 18px;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-nav-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--color-gold-light);
    transform: scale(1.1);
}

.hero-indicators {
    display: flex;
    gap: 12px;
}

.hero-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    padding: 0;
}

.hero-indicator.active {
    width: 40px;
    border-radius: 6px;
    background: var(--color-gold-primary);
}

.hero-indicator:hover {
    background: rgba(255, 255, 255, 0.5);
    transform: scale(1.2);
}

.btn {
    padding: 20px 52px;
    border-radius: 32px;
    font-weight: var(--font-weight-bold);
    font-size: 17px;
    display: inline-block;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    letter-spacing: 0.03em;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-gold-primary) 0%, var(--color-gold-light) 50%, var(--color-gold-primary) 100%);
    background-size: 200% auto;
    color: var(--color-white);
    box-shadow: 0 8px 28px rgba(184, 147, 90, 0.4);
}

.btn-primary:hover {
    background-position: right center;
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 16px 40px rgba(184, 147, 90, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--color-gold-light);
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 32px rgba(184, 147, 90, 0.3);
}

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

.btn-outline:hover {
    background-color: var(--color-navy-primary);
    color: var(--color-white);
    border-color: var(--color-navy-primary);
    transform: translateY(-3px);
}

.btn-navy {
    background: linear-gradient(135deg, var(--color-navy-primary), var(--color-navy-medium));
    color: var(--color-white);
    box-shadow: var(--shadow-lg);
}

.btn-navy:hover {
    background: linear-gradient(135deg, var(--color-navy-medium), var(--color-navy-light));
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.btn.full-width {
    width: 100%;
    text-align: center;
}

.scroll-indicator {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 28px;
    color: var(--color-gold-primary);
    animation: bounce 2s infinite;
    filter: drop-shadow(0 4px 8px rgba(184, 147, 90, 0.4));
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-24px);
    }
    60% {
        transform: translateX(-50%) translateY(-12px);
    }
}

/* ================================================================================
   SECTION STYLES - All Main Content Sections
   ================================================================================ */

/* Company Message Section */
.company-message {
    background-color: var(--color-white);
    padding: var(--section-gap-desktop) 0;
    text-align: center;
    position: relative;
}

.company-message::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    height: 80px;
    background: linear-gradient(180deg, transparent, var(--color-gold-primary), transparent);
}

.section-title-en {
    font-size: 58px;
    font-weight: var(--font-weight-black);
    color: var(--color-navy-primary);
    margin-bottom: 56px;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--color-navy-primary), var(--color-navy-medium));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.message-content {
    max-width: 900px;
    margin: 0 auto;
}

.message-paragraph {
    font-size: 21px;
    color: var(--color-text-secondary);
    line-height: 2;
    margin-bottom: 36px;
    font-weight: var(--font-weight-regular);
}

.message-paragraph:last-child {
    margin-bottom: 0;
}

/* Section Header Styles */
.section-header {
    text-align: center;
    margin-bottom: 88px;
}

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

.section-label {
    display: block;
    font-size: 13px;
    font-weight: var(--font-weight-extrabold);
    background: linear-gradient(90deg, var(--color-gold-primary), var(--color-gold-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 20px;
}

.section-label.light {
    background: linear-gradient(90deg, var(--color-gold-light), var(--color-white));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-title {
    font-size: 44px;
    font-weight: var(--font-weight-black);
    color: var(--color-navy-primary);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

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

.section-subtitle {
    font-size: 19px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    font-weight: var(--font-weight-regular);
}

.section-subtitle.light {
    color: rgba(255, 255, 255, 0.88);
}

/* CEO Message Section */
.ceo-message {
    background: linear-gradient(180deg, var(--color-gray-50) 0%, var(--color-white) 100%);
    padding: var(--section-gap-desktop) 0;
    position: relative;
}

.ceo-content {
    display: grid;
    grid-template-columns: 30% 70%;
    gap: 64px;
    align-items: center;
}

.ceo-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    position: relative;
    max-width: 280px;
}

.ceo-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(184, 147, 90, 0.1) 100%);
    pointer-events: none;
}

.ceo-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 3/4;
    transition: transform var(--transition-slow);
}

.ceo-image:hover img {
    transform: scale(1.05);
}

.ceo-title {
    font-size: 38px;
    font-weight: var(--font-weight-black);
    color: var(--color-navy-primary);
    line-height: 1.35;
    margin-bottom: 36px;
    letter-spacing: -0.01em;
}

.ceo-body {
    font-size: 17px;
    color: var(--color-text-secondary);
    line-height: 2.1;
    margin-bottom: 44px;
    font-weight: var(--font-weight-regular);
}

.ceo-body p {
    margin-bottom: 28px;
}

.ceo-body p:last-child {
    margin-bottom: 0;
}

.ceo-signature {
    border-top: 3px solid;
    border-image: linear-gradient(90deg, var(--color-gold-primary), var(--color-gold-light)) 1;
    padding-top: 28px;
}

.ceo-name {
    font-size: 14px;
    color: var(--color-text-tertiary);
    margin-bottom: 10px;
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.05em;
}

.ceo-name-large {
    font-size: 26px;
    font-weight: var(--font-weight-black);
    background: linear-gradient(135deg, var(--color-navy-primary), var(--color-navy-medium));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* MVV Section */
.mvv {
    background-color: var(--color-white);
    padding: var(--section-gap-desktop) 0;
    position: relative;
}

.mvv::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-gold-primary), transparent);
}

.mvv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 44px;
}

.mvv-card {
    background: linear-gradient(180deg, var(--color-white) 0%, var(--color-gray-50) 100%);
    padding: 64px 52px;
    border-radius: 20px;
    text-align: center;
    transition: all var(--transition-base);
    border: 2px solid var(--color-gray-200);
    position: relative;
    overflow: hidden;
}

.mvv-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--color-gold-primary), var(--color-cyan-accent), var(--color-blue-accent));
    transform: scaleX(0);
    transition: transform var(--transition-bounce);
}

.mvv-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: var(--shadow-2xl);
    border-color: var(--color-gold-primary);
    background: var(--color-white);
}

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

.mvv-icon {
    font-size: 80px;
    background: linear-gradient(135deg, #B8935A, #E8C78E);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 36px;
    transition: transform var(--transition-slow);
    filter: drop-shadow(0 6px 20px rgba(184, 147, 90, 0.6)) contrast(1.2) saturate(1.3);
}

.mvv-card:hover .mvv-icon {
    transform: scale(1.15) rotate(5deg);
}

.mvv-label {
    display: inline-block;
    font-size: 13px;
    font-weight: var(--font-weight-extrabold);
    color: #FFFFFF;
    background: linear-gradient(135deg, #B8935A 0%, #D4B88C 50%, #E8C78E 100%);
    padding: 12px 28px;
    border-radius: 24px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 28px;
    box-shadow: 0 6px 24px rgba(184, 147, 90, 0.5);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.mvv-title {
    font-size: 28px;
    font-weight: var(--font-weight-black);
    color: #0A1628;
    margin-bottom: 24px;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.mvv-description {
    font-size: 16px;
    color: var(--color-text-secondary);
    line-height: 2;
    font-weight: var(--font-weight-regular);
}

/* Business Section */
.business {
    background: linear-gradient(180deg, var(--color-gray-50) 0%, var(--color-white) 50%, var(--color-gray-50) 100%);
    padding: var(--section-gap-desktop) 0;
    position: relative;
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 36px;
}

.business-card {
    background: var(--color-white);
    padding: 56px 48px;
    border-radius: 20px;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    border: 2px solid var(--color-gray-200);
    box-shadow: var(--shadow-sm);
}

.business-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 0;
    background: linear-gradient(180deg, var(--color-gold-primary), var(--color-blue-accent));
    transition: height var(--transition-bounce);
}

.business-card:hover {
    transform: translateY(-12px) scale(1.01);
    box-shadow: var(--shadow-2xl);
    border-color: var(--color-gold-primary);
}

.business-card:hover::before {
    height: 100%;
}

.card-number {
    display: block;
    font-size: 88px;
    font-weight: var(--font-weight-black);
    background: linear-gradient(135deg, var(--color-gray-200), var(--color-gray-300));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 20px;
}

.card-title-en {
    font-size: 26px;
    font-weight: var(--font-weight-black);
    color: var(--color-navy-primary);
    letter-spacing: -0.01em;
    display: inline;
    margin-right: 16px;
}

.card-title-ja {
    font-size: 19px;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-secondary);
    display: inline;
}

.business-card-title {
    margin-bottom: 24px;
    line-height: 1.5;
}

.card-description {
    font-size: 16px;
    color: var(--color-text-secondary);
    line-height: 1.9;
    font-weight: var(--font-weight-regular);
}

/* Strengths Section */
.strengths {
    background-color: var(--color-white);
    padding: var(--section-gap-desktop) 0;
    position: relative;
}

.strength-item {
    display: grid;
    grid-template-columns: 52% 48%;
    gap: 80px;
    align-items: center;
    margin-bottom: 120px;
}

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

.strength-item.reverse {
    grid-template-columns: 48% 52%;
}

.strength-item.reverse .strength-image {
    order: 2;
}

.strength-item.reverse .strength-content {
    order: 1;
}

.strength-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.strength-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4/3;
    transition: transform var(--transition-slow);
}

.strength-image:hover img {
    transform: scale(1.08);
}

.strength-badge {
    position: absolute;
    top: 32px;
    right: 32px;
    width: 76px;
    height: 76px;
    background: linear-gradient(135deg, #D4B88C, #B8935A);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: var(--font-weight-black);
    color: #0A1628;
    box-shadow: 0 8px 24px rgba(184, 147, 90, 0.5);
    transition: transform var(--transition-bounce);
    border: 3px solid #FFFFFF;
}

.strength-badge:hover {
    transform: rotate(360deg) scale(1.1);
    box-shadow: 0 12px 32px rgba(184, 147, 90, 0.6);
}

.strength-title-en {
    font-size: 32px;
    font-weight: var(--font-weight-black);
    color: var(--color-navy-primary);
    letter-spacing: -0.02em;
    display: inline;
    margin-right: 20px;
}

.strength-title-ja {
    font-size: 24px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    display: inline;
}

.strength-title-wrapper {
    margin-bottom: 32px;
    line-height: 1.5;
}

.strength-description {
    font-size: 17px;
    color: var(--color-text-secondary);
    line-height: 2.1;
    font-weight: var(--font-weight-regular);
    max-width: 540px;
}

/* Hybrid Delivery Diagram */
.delivery-diagram {
    background: linear-gradient(180deg, var(--color-gray-50), var(--color-white));
    border-radius: 20px;
    padding: 64px 48px;
    margin: 80px auto 0;
    max-width: 1200px;
    border: 2px solid var(--color-gray-200);
    box-shadow: var(--shadow-lg);
}

.delivery-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    align-items: start;
}

.delivery-side {
    background: var(--color-white);
    padding: 40px 32px;
    border-radius: 16px;
    border: 2px solid;
    transition: all var(--transition-base);
}

.delivery-side.nearshore {
    border-color: #ef5350;
}

.delivery-side.offshore {
    border-color: #42a5f5;
}

.delivery-side:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.delivery-label {
    font-size: 14px;
    font-weight: var(--font-weight-extrabold);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 3px solid;
}

.delivery-side.nearshore .delivery-label {
    color: #ef5350;
    border-color: #ef5350;
}

.delivery-side.offshore .delivery-label {
    color: #42a5f5;
    border-color: #42a5f5;
}

.delivery-title {
    font-size: 22px;
    font-weight: var(--font-weight-black);
    color: var(--color-navy-primary);
    margin-bottom: 28px;
}

.delivery-role {
    margin-bottom: 16px;
}

.delivery-role:last-child {
    margin-bottom: 0;
}

.delivery-role h4 {
    font-size: 17px;
    font-weight: var(--font-weight-bold);
    color: var(--color-navy-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.delivery-role h4 i {
    font-size: 16px;
}

.delivery-side.nearshore .delivery-role h4 i {
    color: #ef5350;
}

.delivery-side.offshore .delivery-role h4 i {
    color: #42a5f5;
}

.delivery-role p {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.delivery-connector {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-top: 60px;
}

.connector-line {
    width: 2px;
    height: 120px;
    background: linear-gradient(180deg, #ef5350, var(--color-gold-primary), #42a5f5);
    position: relative;
    animation: pulse 2s ease-in-out infinite;
}

.connector-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-gold-primary), var(--color-gold-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 20px;
    box-shadow: 0 4px 16px rgba(184, 147, 90, 0.4);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.delivery-locations {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--color-gray-200);
}

.delivery-locations strong {
    display: block;
    font-size: 13px;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-tertiary);
    margin-bottom: 10px;
    letter-spacing: 0.05em;
}

.delivery-locations p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* Numbers Section */
.numbers {
    background: linear-gradient(135deg, var(--color-navy-dark) 0%, var(--color-navy-primary) 50%, var(--color-navy-medium) 100%);
    padding: var(--section-gap-desktop) 0;
    position: relative;
    overflow: hidden;
}

.numbers::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(184, 147, 90, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(74, 144, 226, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.numbers-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 40px;
    position: relative;
    z-index: 1;
}

.number-item {
    text-align: center;
    padding: 32px 20px;
    position: relative;
}

.number-item::after {
    content: '';
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    width: 1px;
    height: 80px;
    background: rgba(255, 255, 255, 0.12);
}

.number-item:last-child::after {
    display: none;
}

.number-value {
    font-size: 68px;
    font-weight: var(--font-weight-black);
    background: linear-gradient(135deg, var(--color-gold-primary), var(--color-gold-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 20px;
    display: block;
}

.number-label {
    font-size: 19px;
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: 12px;
}

.number-description {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.6;
    max-width: 180px;
    margin: 0 auto;
}

/* News Section */
.news {
    background-color: var(--color-gray-50);
    padding: var(--section-gap-desktop) 0;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 64px;
}

.news-item {
    background: var(--color-white);
    padding: 32px 40px;
    border-radius: 16px;
    display: grid;
    grid-template-columns: 140px 120px 1fr auto;
    gap: 28px;
    align-items: center;
    border: 2px solid var(--color-gray-200);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.news-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: linear-gradient(180deg, var(--color-gold-primary), var(--color-blue-accent));
    transition: height var(--transition-base);
}

.news-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-gold-primary);
}

.news-item:hover::before {
    height: 100%;
}

.news-date {
    font-size: 15px;
    color: var(--color-text-tertiary);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.03em;
}

.news-category {
    display: inline-block;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.news-category.press-release {
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    color: #1565c0;
}

.news-category.event {
    background: linear-gradient(135deg, #f3e5f5, #e1bee7);
    color: #6a1b9a;
}

.news-category.media {
    background: linear-gradient(135deg, #fff3e0, #ffe0b2);
    color: #e65100;
}

.news-title {
    font-size: 17px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-navy-primary);
    line-height: 1.6;
}

.news-arrow {
    font-size: 20px;
    color: var(--color-gold-primary);
    transition: transform var(--transition-base);
}

.news-item:hover .news-arrow {
    transform: translateX(8px);
}

/* Career Section */
.career {
    background: linear-gradient(180deg, var(--color-white) 0%, var(--color-gray-50) 100%);
    padding: var(--section-gap-desktop) 0;
}

.career-hero {
    position: relative;
    height: 400px;
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 80px;
    box-shadow: var(--shadow-xl);
}

.career-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.career-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(27, 43, 68, 0.7), rgba(45, 62, 95, 0.5));
}

.career-hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--color-white);
    z-index: 1;
}

.career-hero-content h2 {
    font-size: 52px;
    font-weight: var(--font-weight-black);
    margin-bottom: 20px;
    text-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.career-hero-content p {
    font-size: 20px;
    font-weight: var(--font-weight-regular);
    opacity: 0.95;
}

.career-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.career-card {
    background: var(--color-white);
    padding: 52px 40px;
    border-radius: 20px;
    border: 2px solid var(--color-gray-200);
    transition: all var(--transition-base);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.career-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--color-gold-primary), var(--color-blue-accent));
    transform: scaleX(0);
    transition: transform var(--transition-bounce);
}

.career-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--color-gold-primary);
}

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

.career-icon {
    font-size: 56px;
    background: linear-gradient(135deg, var(--color-gold-primary), var(--color-gold-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 28px;
    transition: transform var(--transition-slow);
}

.career-card:hover .career-icon {
    transform: scale(1.2) rotate(5deg);
}

.career-card h3 {
    font-size: 24px;
    font-weight: var(--font-weight-black);
    color: var(--color-navy-primary);
    margin-bottom: 16px;
}

.career-card p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.9;
}

/* Contact CTA Section */
.contact-cta {
    background: linear-gradient(135deg, var(--color-navy-dark) 0%, var(--color-navy-primary) 100%);
    padding: var(--section-gap-desktop) 0;
    position: relative;
    overflow: hidden;
}

.contact-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 30% 40%, rgba(184, 147, 90, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(74, 144, 226, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    position: relative;
    z-index: 1;
}

.contact-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 2px solid rgba(255, 255, 255, 0.1);
    padding: 64px 52px;
    border-radius: 20px;
    text-align: center;
    transition: all var(--transition-base);
}

.contact-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--color-gold-primary);
    transform: translateY(-12px);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.3);
}

.contact-card-icon {
    font-size: 64px;
    background: linear-gradient(135deg, var(--color-gold-primary), var(--color-gold-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 32px;
    transition: transform var(--transition-slow);
}

.contact-card:hover .contact-card-icon {
    transform: scale(1.15) rotate(-5deg);
}

.contact-card h3 {
    font-size: 30px;
    font-weight: var(--font-weight-black);
    color: var(--color-white);
    margin-bottom: 20px;
}

.contact-card p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.9;
    margin-bottom: 36px;
}

.contact-card .btn {
    background: linear-gradient(135deg, var(--color-gold-primary), var(--color-gold-light));
    color: var(--color-white);
    padding: 18px 48px;
    font-size: 16px;
}

.contact-card .btn:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 32px rgba(184, 147, 90, 0.5);
}

/* Footer Section */
.footer {
    background: linear-gradient(180deg, var(--color-navy-dark) 0%, #050A12 100%);
    padding: var(--section-padding-desktop) 0 48px;
    color: var(--color-white);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 80px;
    margin-bottom: 80px;
}

.footer-company h3 {
    font-size: 28px;
    font-weight: var(--font-weight-black);
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--color-gold-primary), var(--color-gold-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-logo {
    margin-bottom: 20px;
}

.footer-logo img {
    height: 40px;
    width: auto;
    display: block;
}

.footer-tagline {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 32px;
    font-style: italic;
    line-height: 1.7;
}

.footer-info p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 10px;
    line-height: 2.0;
}

.footer-section h4 {
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    margin-bottom: 28px;
    color: var(--color-gold-light);
}

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

.footer-links li {
    margin-bottom: 14px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: all var(--transition-base);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--color-gold-light);
    transform: translateX(4px);
}

.footer-social {
    display: flex;
    gap: 16px;
    margin-top: 20px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--color-gold-primary);
    border-color: var(--color-gold-primary);
    color: var(--color-white);
    transform: translateY(-4px);
}

.footer-social .social-icon-disabled {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.4);
    cursor: not-allowed;
    opacity: 0.6;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 40px;
    margin-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-copyright {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-legal {
    display: flex;
    gap: 28px;
}

.footer-legal a {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color var(--transition-base);
}

.footer-legal a:hover {
    color: var(--color-gold-light);
}

/* ================================================================================
   RESPONSIVE DESIGN
   ================================================================================ */

/* Tablet */
@media (max-width: 1023px) {
    :root {
        --section-padding-desktop: var(--section-padding-tablet);
        --section-gap-desktop: var(--section-gap-tablet);
        --container-padding-desktop: 40px;
    }

    .header {
        height: 75px;
    }

    .header-container {
        padding: 0 40px;
        gap: 40px;
    }

    .logo a {
        font-size: 24px;
    }

    .nav-menu {
        gap: 24px;
    }

    .nav-link {
        font-size: 14px;
    }

    .btn-contact {
        padding: 12px 24px;
        font-size: 14px;
    }

    .hero-title {
        font-size: 56px;
    }

    .hero-subtitle {
        font-size: 20px;
    }

    .hero-label {
        font-size: 13px;
    }

    .hero-nav {
        bottom: 100px;
        gap: 24px;
    }

    .section-title-en {
        font-size: 46px;
    }

    .section-title {
        font-size: 36px;
    }

    .ceo-content,
    .strength-item,
    .strength-item.reverse {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .ceo-image {
        max-width: 240px;
        margin: 0 auto;
    }

    .strength-item.reverse .strength-image,
    .strength-item.reverse .strength-content {
        order: initial;
    }

    .mvv-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

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

    .numbers-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 32px;
    }

    .number-item:nth-child(3n)::after {
        display: none;
    }

    .career-cards {
        grid-template-columns: 1fr;
    }

    .contact-cards {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 48px;
    }

    .delivery-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .delivery-connector {
        display: none;
    }
}

/* Small Tablet / Large Mobile (Portrait) */
@media (max-width: 900px) {
    .header-container {
        gap: 20px;
    }

    .nav-menu {
        position: fixed;
        top: 75px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        gap: 0;
        padding: 40px 24px;
        align-items: stretch;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
        box-shadow: -4px 0 24px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-link {
        font-size: 18px;
        padding: 20px 16px;
        border-bottom: 1px solid var(--color-gray-200);
        color: var(--color-navy-primary);
    }

    .nav-link:hover {
        background-color: var(--color-gray-50);
        color: var(--color-gold-primary);
        transform: translateY(0);
    }

    .nav-link::before {
        display: none;
    }

    .btn-contact {
        margin-top: 24px;
        padding: 16px 32px;
        font-size: 16px;
        text-align: center;
        border-radius: 8px;
        display: block;
    }

    .hamburger {
        display: flex;
    }
}

/* Mobile */
@media (max-width: 767px) {
    :root {
        --section-padding-desktop: var(--section-padding-mobile);
        --section-gap-desktop: var(--section-gap-mobile);
        --container-padding-desktop: 24px;
    }

    /* Header - モバイル対応 */
    .header {
        height: 70px;
    }

    .header-container {
        padding: 0 24px;
    }

    .logo a {
        font-size: 22px;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        gap: 0;
        padding: 40px 24px;
        align-items: stretch;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-link {
        font-size: 18px;
        padding: 20px 16px;
        border-bottom: 1px solid var(--color-gray-200);
        color: var(--color-navy-primary);
    }

    .nav-link:hover {
        background-color: var(--color-gray-50);
        color: var(--color-gold-primary);
        transform: translateY(0);
    }

    .nav-link::before {
        display: none;
    }

    .btn-contact {
        margin-top: 24px;
        padding: 16px 32px;
        font-size: 16px;
        text-align: center;
        border-radius: 8px;
    }

    .hamburger {
        display: flex;
    }

    .container {
        padding: 0 24px;
    }

    .hero {
        padding: 120px 24px 60px;
        min-height: calc(100vh - 70px);
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 16px;
        margin-bottom: 40px;
    }

    .hero-label {
        font-size: 12px;
        padding: 6px 16px;
        margin-bottom: 24px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 16px;
    }

    .hero-nav {
        bottom: 80px;
        gap: 20px;
    }

    .hero-nav-btn {
        width: 40px;
        height: 40px;
        font-size: 14px;
    }

    .hero-indicator {
        width: 10px;
        height: 10px;
    }

    .hero-indicator.active {
        width: 32px;
    }
    
    /* Disable parallax on mobile for better performance */
    .hero-slide {
        background-attachment: scroll;
    }

    .btn {
        width: 100%;
        padding: 16px 32px;
        font-size: 15px;
    }

    .section-title-en {
        font-size: 32px;
        margin-bottom: 40px;
    }

    .message-paragraph {
        font-size: 16px;
        margin-bottom: 24px;
    }

    .section-header {
        margin-bottom: 56px;
    }

    .section-title {
        font-size: 28px;
    }

    .section-subtitle {
        font-size: 16px;
    }

    .ceo-title {
        font-size: 26px;
        margin-bottom: 24px;
    }

    .ceo-body {
        font-size: 15px;
        margin-bottom: 32px;
    }
    
    .ceo-image {
        max-width: 200px;
        margin: 0 auto;
    }

    .mvv-card {
        padding: 48px 32px;
    }

    .mvv-icon {
        font-size: 64px;
    }

    .mvv-title {
        font-size: 22px;
    }

    .business-card {
        padding: 40px 28px;
    }

    .card-number {
        font-size: 64px;
    }

    .card-title-en {
        font-size: 20px;
        margin-right: 12px;
    }

    .card-title-ja {
        font-size: 16px;
    }

    .business-card-title {
        margin-bottom: 20px;
    }

    .strength-item {
        margin-bottom: 80px;
    }

    .strength-badge {
        width: 56px;
        height: 56px;
        font-size: 20px;
        top: 20px;
        right: 20px;
    }

    .strength-title-en {
        font-size: 22px;
        margin-right: 12px;
    }

    .strength-title-ja {
        font-size: 18px;
    }

    .strength-title-wrapper {
        margin-bottom: 24px;
    }

    .strength-description {
        font-size: 15px;
        max-width: 100%;
    }

    .delivery-diagram {
        padding: 40px 24px;
    }

    .delivery-side {
        padding: 28px 20px;
    }

    .delivery-title {
        font-size: 18px;
        margin-bottom: 20px;
    }

    .delivery-role h4 {
        font-size: 15px;
    }

    .numbers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px 24px;
    }

    .number-item {
        padding: 24px 10px;
    }

    .number-item:nth-child(2n)::after {
        display: none;
    }

    .number-value {
        font-size: 48px;
        margin-bottom: 12px;
    }

    .number-label {
        font-size: 16px;
        margin-bottom: 8px;
    }

    .number-description {
        font-size: 13px;
    }

    .news-item {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto auto;
        gap: 16px;
        padding: 24px 20px;
    }

    .news-date {
        font-size: 13px;
    }

    .news-category {
        padding: 6px 16px;
    }

    .news-title {
        font-size: 15px;
        grid-column: 1;
        grid-row: 3;
    }

    .news-arrow {
        grid-column: 1;
        grid-row: 4;
        text-align: right;
    }

    .career-hero {
        height: 280px;
        margin-bottom: 56px;
    }

    .career-hero-content h2 {
        font-size: 32px;
    }

    .career-hero-content p {
        font-size: 15px;
    }

    .career-card {
        padding: 40px 28px;
    }

    .career-icon {
        font-size: 44px;
        margin-bottom: 20px;
    }

    .career-card h3 {
        font-size: 20px;
        margin-bottom: 12px;
    }

    .contact-card {
        padding: 48px 32px;
    }

    .contact-card-icon {
        font-size: 48px;
        margin-bottom: 24px;
    }

    .contact-card h3 {
        font-size: 24px;
        margin-bottom: 16px;
    }

    .contact-card p {
        font-size: 14px;
        margin-bottom: 28px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        margin-bottom: 48px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .footer-legal {
        flex-direction: column;
        gap: 12px;
    }
}