* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
    position: relative;
    overflow-x: hidden;
}

/* Background Geometric Elements */
body::before {
    content: '';
    position: fixed;
    top: -20%;
    right: -10%;
    width: 40%;
    height: 120%;
    background: linear-gradient(135deg, rgba(11, 26, 81, 0.02) 0%, transparent 50%);
    clip-path: polygon(30% 0%, 100% 0%, 100% 100%, 0% 100%);
    pointer-events: none;
    z-index: -1;
}

body::after {
    content: '';
    position: fixed;
    bottom: -20%;
    left: -10%;
    width: 30%;
    height: 80%;
    background: linear-gradient(45deg, rgba(57, 146, 212, 0.03) 0%, transparent 70%);
    clip-path: polygon(0% 0%, 70% 0%, 100% 100%, 0% 100%);
    pointer-events: none;
    z-index: -1;
}

.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background-color: #ffffff;
    box-shadow: 0px 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 70px;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav a {
    color: #333333;
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: color 0.3s ease;
}

.nav a:hover {
    color: #0B1A51;
}

/* ナビゲーションの「お問合せ」ボタンスタイル */
.nav a[href*="contact.html"] {
    background-color: #3992D4;
    color: white !important;
    border: 2px solid #3992D4;
    padding: 6px 14px;
    border-radius: 20px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.nav a[href*="contact.html"]:hover {
    background-color: transparent;
    color: #3992D4 !important;
    border-color: #3992D4;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(57, 146, 212, 0.2);
}

/* ハンバーガーメニュー */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: #0B1A51;
    margin: 2px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* モバイルメニュー */
.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(11, 26, 81, 0.1);
    z-index: 1000;
}

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

.mobile-nav {
    display: flex;
    flex-direction: column;
    padding: 20px;
}

.mobile-nav a {
    padding: 15px 0;
    border-bottom: 1px solid rgba(11, 26, 81, 0.1);
    color: #0B1A51;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.mobile-nav a:last-child {
    border-bottom: none;
}

.mobile-nav a:hover {
    color: #0B1A51;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    max-height: 800px;
    background: linear-gradient(250.75deg, rgba(11, 26, 81, 0) 2.0059%, rgba(11, 26, 81, 0.5) 73.426%), url('../img/kv.jpg');
    background-size: 110% 110%;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    margin-top: 70px;
    overflow: hidden;
    animation: heroZoom 20s ease-in-out infinite alternate;
}

@keyframes heroZoom {
    0% { 
        background-size: 110% 110%; 
        background-position: center center;
    }
    100% { 
        background-size: 120% 120%; 
        background-position: center top;
    }
}


/* Hero Particle Effects */
.hero-content::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(57, 146, 212, 0.03) 0%, transparent 20%),
        radial-gradient(circle at 80% 70%, rgba(11, 26, 81, 0.02) 0%, transparent 20%),
        radial-gradient(circle at 40% 80%, rgba(57, 146, 212, 0.02) 0%, transparent 15%),
        radial-gradient(circle at 90% 20%, rgba(11, 26, 81, 0.03) 0%, transparent 25%);
    animation: particleFloat 15s linear infinite;
    pointer-events: none;
    z-index: -1;
}

.hero-content::after {
    content: '';
    position: absolute;
    top: 20%;
    left: 10%;
    width: 4px;
    height: 4px;
    background: rgba(57, 146, 212, 0.6);
    border-radius: 50%;
    box-shadow: 
        20px 30px rgba(57, 146, 212, 0.4),
        -15px 50px rgba(11, 26, 81, 0.3),
        40px -20px rgba(57, 146, 212, 0.3),
        -30px -10px rgba(11, 26, 81, 0.4),
        60px 60px rgba(57, 146, 212, 0.2);
    animation: sparkle 8s ease-in-out infinite;
    pointer-events: none;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-10px) rotate(5deg); }
    66% { transform: translateY(-5px) rotate(-3deg); }
}

@keyframes particleFloat {
    0% { transform: translateX(0) translateY(0) rotate(0deg); }
    100% { transform: translateX(-100px) translateY(-50px) rotate(360deg); }
}

@keyframes sparkle {
    0%, 100% { opacity: 0.8; transform: scale(1); }
    25% { opacity: 0.4; transform: scale(1.2); }
    50% { opacity: 1; transform: scale(0.8); }
    75% { opacity: 0.6; transform: scale(1.1); }
}

.hero-logo {
    margin-bottom: 32px;
}

.hero-logo img {
    height: 45px;
    width: auto;
}

.hero-content {
    position: relative;
    z-index: 10;
}

.hero-content h1 {
    font-size: 56px;
    font-weight: bold;
    margin-bottom: 16px;
    line-height: 1.6;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    animation: titleGlow 3s ease-in-out infinite alternate;
}

.hero-content p {
    font-size: 23.8px;
    margin-bottom: 40px;
    opacity: 0.9;
    text-shadow: 0 1px 10px rgba(0, 0, 0, 0.2);
}

@keyframes titleGlow {
    0% { text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3); }
    100% { text-shadow: 0 2px 30px rgba(57, 146, 212, 0.2), 0 2px 20px rgba(0, 0, 0, 0.3); }
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 18px 32px;
    border-radius: 50px;
    font-weight: bold;
    font-size: 17.6px;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    min-width: 160px;
    text-align: center;
    box-sizing: border-box;
}

.btn-primary {
    background-color: #3992D4;
    color: white;
    border: 2px solid white;
}

.btn-primary:hover {
    background-color: #2980B9;
    transform: translateX(2px);
    box-shadow: 
        0 4px 20px rgba(57, 146, 212, 0.3),
        inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border: 1px solid white;
}

.btn-secondary:hover {
    background-color: white;
    color: #0B1A51;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: white;
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 1px;
    text-transform: uppercase;
    animation: scrollBounce 2s ease-in-out infinite;
}

.scroll-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.scroll-arrow span {
    width: 2px;
    height: 8px;
    background: white;
    border-radius: 1px;
    opacity: 0.4;
    animation: scrollArrow 1.5s ease-in-out infinite;
}

.scroll-arrow span:nth-child(1) {
    animation-delay: 0s;
}

.scroll-arrow span:nth-child(2) {
    animation-delay: 0.15s;
}

.scroll-arrow span:nth-child(3) {
    animation-delay: 0.3s;
}

@keyframes scrollBounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-5px);
    }
    60% {
        transform: translateX(-50%) translateY(-3px);
    }
}

@keyframes scrollArrow {
    0% {
        opacity: 0.4;
        transform: scaleY(1);
    }
    50% {
        opacity: 1;
        transform: scaleY(1.5);
    }
    100% {
        opacity: 0.4;
        transform: scaleY(1);
    }
}

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

.animate-on-scroll {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

.animate-delay-1 { animation-delay: 0.2s; }
.animate-delay-2 { animation-delay: 0.4s; }
.animate-delay-3 { animation-delay: 0.6s; }

/* Typography Enhancements */
.highlight-number {
    font-size: 3.5rem;
    font-weight: 900;
    color: #0B1A51;
    line-height: 1;
    display: block;
    margin-bottom: 8px;
}

.highlight-text {
    font-weight: 700;
    color: #0B1A51;
    position: relative;
}

.highlight-orange {
    color: #0B1A51;
    font-weight: 700;
}

.stats-highlight {
    color: #0B1A51;
    font-weight: 900;
}

/* Section Titles */
.section {
    padding: 80px 0;
}

/* Services Section */
.services-section {
    padding: 80px 0;
    background-color: #fafafa;
}

/* メインサービス（4つ）のジグザグレイアウト */
.main-services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-top: 50px;
}

.main-services-grid .service-item:nth-child(1) {
    transform: translateY(-20px) rotate(-1deg);
}

.main-services-grid .service-item:nth-child(2) {
    transform: translateY(30px) rotate(1.5deg);
}

.main-services-grid .service-item:nth-child(3) {
    transform: translateY(-10px) rotate(-0.8deg);
}

.main-services-grid .service-item:nth-child(4) {
    transform: translateY(40px) rotate(1.2deg);
}

/* 既存のservices-gridも残す（下位互換性のため） */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.service-item {
    background: #ffffff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
    position: relative;
    border-top: 4px solid #3992D4;
}

.service-item:hover {
    transform: translateY(-5px) rotate(0deg) !important;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.service-image {
    height: 160px;
    overflow: hidden;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-image img {
    max-width: 70%;
    max-height: 70%;
    object-fit: contain;
    transition: transform 0.3s ease;
}

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

.service-item h3 {
    font-size: 18px;
    font-weight: bold;
    color: #0B1A51;
    margin: 10px 0 10px 0;
    padding: 0 20px;
    line-height: 1.3;
}


/* 英語部分のスタイル調整 */
.service-subtitle {
    font-size: 14px;
    font-weight: normal;
    color: #666;
}

.service-item p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin: 0 0 20px 0;
    padding: 0 20px;
}

.services-link {
    text-align: right;
    margin-top: 40px;
}

.text-link {
    color: #0B1A51;
    text-decoration: none;
    font-weight: bold;
    border-bottom: 2px solid #0B1A51;
    padding-bottom: 2px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.text-link::after {
    content: '';
    width: 16px;
    height: 16px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M6 4L10 8L6 12' stroke='%230B1A51' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    transition: transform 0.3s ease;
}

.text-link:hover {
    color: #0B1A51;
    border-bottom-color: #0B1A51;
}

.text-link:hover::after {
    transform: translateX(4px);
}

/* その他のサービスセクション */
.other-services {
    margin-top: 40px;
    padding: 0;
}

.other-services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 0;
}

.other-service-item {
    background: #ffffff;
    border: 1px solid rgba(11, 26, 81, 0.1);
    border-radius: 6px;
    border-top: 4px solid #3992D4;
    padding: 24px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.other-service-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.other-service-item h4 {
    font-size: 16px;
    font-weight: bold;
    color: #0B1A51;
    margin-bottom: 12px;
}

.other-service-item p {
    color: #666;
    font-size: 13px;
    line-height: 1.5;
    margin: 0;
}

@media (max-width: 768px) {
    .main-services-grid,
    .services-grid {
        grid-template-columns: 1fr;
        gap: 30px;
        margin-top: 30px;
    }
    
    .main-services-grid .service-item:nth-child(1),
    .main-services-grid .service-item:nth-child(2),
    .main-services-grid .service-item:nth-child(3),
    .main-services-grid .service-item:nth-child(4) {
        transform: translateY(0);
    }
    
    .service-item {
        margin: 0 10px;
    }
    
    .other-services {
        margin-top: 30px;
        padding: 0;
    }
    
    .other-services-grid {
        grid-template-columns: 1fr;
        gap: 30px;
        margin-top: 0;
    }
    
    .other-service-item {
        padding: 20px;
    }
}

.section-alt {
    padding: 80px 0;
    background-color: #f8f9fa;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(11, 26, 81, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(57, 146, 212, 0.03) 0%, transparent 50%);
    position: relative;
}

.section-alt::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(
            45deg,
            rgba(11, 26, 81, 0.01) 0px,
            rgba(11, 26, 81, 0.01) 1px,
            transparent 1px,
            transparent 20px
        );
    pointer-events: none;
}

.section-alt::after {
    content: '';
    position: absolute;
    top: -50px;
    left: 0;
    width: 100%;
    height: 100px;
    background: #ffffff;
    clip-path: ellipse(100% 60px at 50% 100%);
}

.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: bold;
    color: #999999;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 16px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: #0B1A51;
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: 40px;
    font-weight: bold;
    color: #333333;
    margin-bottom: 60px;
    line-height: 1.6;
}

/* Problem Cards */
.problem-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-bottom: 80px;
}

.problem-card {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0px 5px 15px rgba(0, 0, 0, 0.1);
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    transform: rotate(-1deg);
}

.problem-card:nth-child(2) {
    transform: rotate(1deg);
}

.problem-card:nth-child(3) {
    transform: rotate(-0.5deg);
}

.problem-card:hover {
    transform: rotate(0deg) translateY(-10px);
    box-shadow: 0px 15px 35px rgba(0, 0, 0, 0.15);
}

.problem-card-image {
    width: 100%;
    height: 220px;
    background-color: #ffffff;
    border-radius: 8px;
    margin-bottom: 30px;
    overflow: hidden;
}

.problem-card-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
}

.problem-card h3 {
    font-size: 20.8px;
    font-weight: bold;
    color: #333333;
    margin-bottom: 16px;
}

.problem-card p {
    font-size: 16px;
    color: #333333;
    line-height: 1.6;
}

.source-citation {
    font-size: 12px;
    color: #666666;
    margin-top: 12px;
    font-style: italic;
    text-align: right;
}

/* Solution Section */
.solution-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    margin-bottom: 80px;
}

/* Customer Transformation Section */
.customer-transformation {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 80px;
}

.transformation-before,
.transformation-after {
    position: relative;
    text-align: center;
    padding: 20px;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.transformation-before {
    background: linear-gradient(135deg, rgba(128, 128, 128, 0.05) 0%, rgba(128, 128, 128, 0.02) 100%);
}

.transformation-after {
    background: linear-gradient(135deg, rgba(11, 26, 81, 0.05) 0%, rgba(57, 146, 212, 0.02) 100%);
}

.transformation-label {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: #ffffff;
    padding: 8px 20px;
    border-radius: 15px;
    font-size: 16px;
    font-weight: bold;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.transformation-before .transformation-label {
    color: #666666;
    border: 2px solid #cccccc;
}

.transformation-after .transformation-label {
    color: #ffffff;
    background: #0B1A51;
    border: 2px solid #0B1A51;
}

/* Value Addition Styles */
.customer-value-addition {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    align-items: center;
}

.value-traditional, .value-new {
    background: white;
    border-radius: 12px;
    padding: 25px 20px;
    box-shadow: 0px 4px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
}

.value-label {
    background: #0B1A51;
    color: white;
    font-size: 18px;
    font-weight: 600;
    padding: 10px 20px;
    border-radius: 25px;
    display: inline-block;
    margin-bottom: 16px;
}

.value-plus {
    display: flex;
    align-items: center;
    justify-content: center;
}

.plus-symbol {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #0B1A51 0%, #4A90E2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 36px;
    font-weight: bold;
    box-shadow: 0px 8px 20px rgba(57, 146, 212, 0.3);
}

/* Legacy arrow styles (keep for compatibility) */
.transformation-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.arrow-container {
    position: relative;
    width: 60px;
    height: 6px;
}

.arrow-line {
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #ffffff 0%, #0B1A51 100%);
    border-radius: 2px;
}

.arrow-head {
    position: absolute;
    right: -8px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 12px solid #0B1A51;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
}

.transformation-text {
    font-size: 14px;
    font-weight: bold;
    color: #0B1A51;
    background: #ffffff;
    padding: 5px 10px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.transformation-before .customer-value-image {
    background-color: #d0d0d0;
}

/* Domain × Tech Integration */
.domain-tech-integration {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 80px;
}

.domain-section,
.tech-section {
    position: relative;
    text-align: center;
    padding: 20px;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.domain-section {
    background: linear-gradient(135deg, rgba(11, 26, 81, 0.05) 0%, rgba(11, 26, 81, 0.02) 100%);
}

.tech-section {
    background: linear-gradient(135deg, rgba(57, 146, 212, 0.05) 0%, rgba(57, 146, 212, 0.02) 100%);
}

.domain-tech-label {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: #ffffff;
    padding: 8px 20px;
    border-radius: 15px;
    font-size: 16px;
    font-weight: bold;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.domain-section .domain-tech-label {
    color: #0B1A51;
    border: 2px solid #0B1A51;
}

.tech-section .domain-tech-label {
    color: #ffffff;
    background: #0B1A51;
    border: 2px solid #0B1A51;
}

.domain-tech-multiply {
    display: flex;
    align-items: center;
    justify-content: center;
}

.multiply-symbol {
    font-size: 48px;
    font-weight: bold;
    color: #0B1A51;
    background: #ffffff;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.solution-item {
    text-align: center;
}

.solution-image {
    width: 100%;
    height: 280px;
    background-color: #d9d9d9;
    border-radius: 8px;
    margin-bottom: 30px;
    overflow: hidden;
}

.solution-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

/* 顧客価値セクション専用の画像スタイル */
.customer-value-image {
    width: 100%;
    height: 260px;
    background-color: #ffffff;
    border-radius: 8px;
    margin-bottom: 24px;
    overflow: hidden;
}

.customer-value-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
}

.solution-item h3 {
    font-size: 20.8px;
    font-weight: bold;
    color: #333333;
    margin-bottom: 16px;
}

.solution-item p {
    font-size: 16px;
    color: #333333;
    line-height: 1.6;
}

/* Features Section */
.features {
    background-color: #f8f9fa;
    padding: 80px 0;
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 25%;
    right: 4%;
    width: 0;
    height: 0;
    border-top: 20px solid transparent;
    border-left: 35px solid rgba(57, 146, 212, 0.06);
    border-bottom: 20px solid transparent;
    animation: pulse 4s ease-in-out infinite;
}

.features::after {
    content: '';
    position: absolute;
    top: 25%;
    right: 2.5%;
    width: 0;
    height: 0;
    border-top: 15px solid transparent;
    border-left: 25px solid rgba(57, 146, 212, 0.08);
    border-bottom: 15px solid transparent;
    animation: pulse 4s ease-in-out infinite;
    animation-delay: 0.2s;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.1); }
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.feature-item {
    text-align: left;
}

.feature-image {
    width: 100%;
    height: 200px;
    background-color: #e9ecef;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6c757d;
    font-size: 17.6px;
    overflow: hidden;
}

.feature-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

.feature-item h3 {
    font-size: 18.7px;
    font-weight: bold;
    color: #333333;
    margin-bottom: 12px;
}

.feature-item p {
    font-size: 16px;
    color: #333333;
    line-height: 1.6;
}

/* Gallery */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 80px;
}

.gallery-item {
    height: 263px;
    background-color: #d9d9d9;
    border-radius: 8px;
    overflow: hidden;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

/* Pickup Articles Section */
.pickup-section {
    padding: 80px 0;
    background-color: #ffffff;
}

.pickup-featured {
    max-width: 1000px;
    margin: 0 auto;
}

.pickup-featured-item {
    background-color: white;
    border-radius: 16px;
    box-shadow: 0px 6px 30px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pickup-featured-item:hover {
    transform: translateY(-4px);
    box-shadow: 0px 12px 50px rgba(0, 0, 0, 0.12);
}

.pickup-featured-item a {
    display: block;
    text-decoration: none;
    color: inherit;
}

.pickup-featured-content {
    display: flex;
    align-items: center;
    gap: 40px;
    padding: 40px;
}

.pickup-featured-image {
    flex: 0 0 300px;
    height: 200px;
    border-radius: 12px;
    overflow: hidden;
    background-color: #f8f9fa;
}

.pickup-featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.pickup-featured-text {
    flex: 1;
}

.pickup-featured-title {
    font-size: 24px;
    font-weight: bold;
    color: #0B1A51;
    line-height: 1.4;
    margin: 0 0 16px 0;
}

.pickup-featured-excerpt {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
    margin: 0 0 20px 0;
}

.pickup-featured-meta {
    display: flex;
    align-items: center;
    gap: 12px;
}

.pickup-source {
    font-size: 14px;
    color: #0B1A51;
    font-weight: 500;
}

.pickup-arrow {
    font-size: 18px;
    color: #3992D4;
    font-weight: bold;
    transition: transform 0.3s ease;
}

.pickup-featured-item:hover .pickup-arrow {
    transform: translateX(4px);
}

/* モバイル対応 */
@media (max-width: 768px) {
    .pickup-featured-content {
        flex-direction: column;
        padding: 30px 20px;
        gap: 20px;
    }
    
    .pickup-featured-image {
        flex: none;
        width: 100%;
        height: 180px;
    }
    
    .pickup-featured-title {
        font-size: 20px;
    }
    
    .pickup-featured-excerpt {
        font-size: 14px;
    }
}

/* News Section */
.news-section {
    padding: 80px 0;
    background-color: #f8f9fa;
    position: relative;
}

.news-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(57, 146, 212, 0.3) 25%, 
        rgba(11, 26, 81, 0.3) 75%, 
        transparent 100%);
    transform: skewY(-1deg);
}

.news-section::after {
    content: '';
    position: absolute;
    bottom: 20%;
    left: 3%;
    width: 0;
    height: 0;
    border-top: 18px solid transparent;
    border-left: 30px solid rgba(57, 146, 212, 0.08);
    border-bottom: 18px solid transparent;
    animation: clearAnimation 4s ease-in-out infinite;
}

@keyframes slideIn {
    0%, 100% { transform: rotate(45deg) translateX(0); opacity: 0.2; }
    50% { transform: rotate(45deg) translateX(20px); opacity: 0.6; }
}

@keyframes clearAnimation {
    0%, 100% { 
        transform: translateX(0) scale(1); 
        opacity: 0.4; 
    }
    25% { 
        transform: translateX(15px) scale(1.1); 
        opacity: 0.8; 
    }
    50% { 
        transform: translateX(30px) scale(1); 
        opacity: 0.6; 
    }
    75% { 
        transform: translateX(45px) scale(0.9); 
        opacity: 0.3; 
    }
}

/* News List Layout */
.news-list {
    margin-bottom: 40px;
}

.news-item {
    background-color: white;
    border-radius: 12px;
    box-shadow: 0px 4px 20px rgba(0, 0, 0, 0.08);
    margin-bottom: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-item:hover {
    transform: translateY(-2px);
    box-shadow: 0px 8px 30px rgba(0, 0, 0, 0.12);
}

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

.news-item-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.news-item-date {
    color: #3992D4;
    font-size: 14px;
    font-weight: 500;
    order: 1;
}

.news-item-category {
    background-color: #0B1A51;
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    display: inline-block;
    width: fit-content;
    order: 2;
}

.news-item-title {
    font-size: 18px;
    font-weight: bold;
    color: #0B1A51;
    line-height: 1.4;
    order: 3;
}

.news-item-excerpt {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    order: 4;
}

/* Mobile Navigation */
.mobile-nav {
    display: none;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.mobile-nav-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    text-align: center;
}

.mobile-nav-link {
    color: white;
    text-decoration: none;
    padding: 12px 8px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    transition: all 0.3s ease;
    font-size: 14px;
}

.mobile-nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}


/* Footer CTA */
.footer-cta {
    background-color: #0B1A51;
    color: white;
    padding: 40px 0;
    text-align: center;
}

.footer-cta h2 {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 16px;
}

.footer-cta p {
    font-size: 16px;
    opacity: 0.8;
    margin-bottom: 32px;
}

/* Contact Grid */
.contact-grid {
    margin: 40px 0;
    text-align: center;
}

.contact-button-wrapper {
    margin-bottom: 30px;
}

.contact-phone {
    text-align: center;
}

.contact-phone p.contact-phone-number {
    font-size: 24px !important;
    font-weight: bold !important;
    margin-bottom: 0px !important;
}

.contact-phone-number .sub-text {
    font-size: 16px;
    font-weight: normal;
}

.contact-phone p.contact-phone-hours {
    opacity: 0.8;
    font-size: 14px;
    margin-bottom: 0px !important;
}

.contact-fax {
    opacity: 0.8;
    font-size: 14px;
    margin-bottom: 0px !important;
}

.contact-email {
    margin-top: 8px !important;
}

.contact-email a {
    color: #3992D4;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
}

.contact-email a:hover {
    color: #ffffff;
    text-decoration: underline;
}

/* Footer CTA専用のボタンスタイル */
.footer-cta .btn-primary {
    background-color: #3992D4;
    color: #ffffff;
    border: 2px solid #3992D4;
}

.footer-cta .btn-primary:hover {
    background-color: #2980B9;
    color: #ffffff;
    border-color: #2980B9;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(57, 146, 212, 0.3);
}

/* Address Section */
.footer-address-section {
    text-align: center;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-address-section h3 {
    color: white;
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 20px;
}

.address-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.address-jp,
.address-en {
    text-align: left;
}


.address-jp p,
.address-en p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}

.address-en a {
    color: #3992D4;
    text-decoration: none;
    font-weight: 500;
}

.address-en a:hover {
    color: #ffffff;
    text-decoration: underline;
}

/* Footer */
.footer {
    background-color: #333333;
    color: white;
    padding: 40px 0;
    font-size: 14px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 40px;
}

.footer-copyright {
    text-align: left;
}

.footer-copyright p {
    margin: 0;
    opacity: 0.8;
}

.footer-logos {
    display: flex;
    gap: 20px;
    align-items: center;
}

.footer-logo {
    width: 120px;
    height: 70px;
    background-color: transparent;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 4px;
}

.footer-privacy {
    text-align: right;
}

.footer-privacy a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

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

    .hamburger {
        display: flex;
    }

    .mobile-nav {
        display: flex !important;
        flex-direction: column !important;
        align-items: stretch !important;
        width: 100% !important;
    }

    .mobile-nav a {
        display: block !important;
        width: 100% !important;
        text-align: left !important;
        padding: 15px 0 !important;
        border-bottom: 1px solid rgba(11, 26, 81, 0.1) !important;
    }

    .header {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        z-index: 100;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
    }

    .hero {
        height: 100vh;
        margin-top: 0;
        padding-top: 70px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .hero-content {
        padding: 20px;
        text-align: center;
    }

    .hero-logo {
        margin-bottom: 24px;
    }

    .hero-logo img {
        height: 32px;
    }

    .hero-content h1 {
        font-size: 28px;
        line-height: 1.4;
        margin-bottom: 12px;
    }

    .hero-content p {
        font-size: 16px;
        margin-bottom: 32px;
    }

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

    .btn {
        width: 280px;
        padding: 16px 24px;
        font-size: 16px;
    }

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

    /* Customer Value Addition Mobile */
    .customer-value-addition {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .plus-symbol {
        width: 50px;
        height: 50px;
        font-size: 30px;
        transform: rotate(90deg);
    }

    /* Legacy Customer Transformation Mobile */
    .customer-transformation {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .transformation-arrow {
        transform: rotate(90deg);
    }

    .arrow-container {
        width: 40px;
    }

    .transformation-text {
        font-size: 12px;
    }

    /* Domain × Tech Mobile */
    .domain-tech-integration {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .multiply-symbol {
        font-size: 36px;
        width: 60px;
        height: 60px;
    }

    .solution-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    /* SP版での画像高さ調整 */
    .solution-image {
        height: 190px !important;
    }

    .customer-value-image {
        height: 180px !important;
    }

    .problem-card-image {
        height: 150px !important;
    }

    /* Footer SP対応 */
    .footer-mobile-nav {
        display: block !important;
    }

    .footer-mobile-nav-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 15px !important;
    }

    .footer-content {
        grid-template-columns: 1fr !important;
        text-align: center !important;
        gap: 20px !important;
    }

    .footer-copyright,
    .footer-privacy {
        text-align: center !important;
    }

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

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

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

    /* お問い合わせセクションのレスポンシブ */
    .contact-grid {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }

    /* モバイルナビゲーション表示 */
    .mobile-nav {
        display: block !important;
    }

    /* フッターのレスポンシブ */
    .footer-content {
        grid-template-columns: 1fr !important;
        text-align: center !important;
        gap: 20px !important;
    }

    .footer-copyright,
    .footer-privacy {
        text-align: center !important;
    }
    
    /* Shippio × 協和海運エリアのレスポンシブ */
    .shippio-collaboration {
        position: absolute !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        padding: 16px 0 !important;
        margin-bottom: 0 !important;
    }
    
    .collaboration-content {
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        justify-content: center !important;
        gap: 6px !important;
        text-align: center !important;
        padding: 0 20px !important;
    }

    .collaboration-left,
    .collaboration-right {
        width: 100% !important;
        text-align: center !important;
    }
    
    .logo-shippio img {
        height: 20px !important;
    }
    
    .collaboration-text {
        font-size: 11px !important;
        text-align: center !important;
        margin: 0 !important;
    }
}

/* Shippio × 協和海運エリア */
.shippio-collaboration {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: #0B1A51;
    backdrop-filter: blur(10px);
    padding: 16px 0;
    z-index: 100;
    animation: slideInUp 0.8s ease-out 0.5s both;
}

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

.collaboration-content {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    text-align: center;
}

.collaboration-left {
    flex-shrink: 0;
    text-align: center;
}

.collaboration-right {
    flex-shrink: 0;
    text-align: center;
}

.logo-shippio {
    margin: 0;
    padding: 0;
}

.logo-shippio img {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
    margin: 0;
    padding: 0;
    display: block;
}

.collaboration-text {
    color: white;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.2;
    margin: 0;
    padding: 0;
    text-align: center;
}

/* ホバー効果は無効 */

/* Footer */
.footer {
    background-color: #f8f9fa;
    padding: 40px 0 20px 0;
    border-top: 1px solid #e9ecef;
    margin-top: 0;
}

.footer-mobile-nav {
    display: none;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid #e9ecef;
}

.footer-mobile-nav-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    text-align: center;
}

.footer-mobile-nav-link {
    color: #0B1A51;
    text-decoration: none;
    font-weight: 500;
    padding: 10px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.footer-mobile-nav-link:hover {
    background-color: #e9ecef;
    color: #0B1A51;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 20px;
}

.footer-copyright {
    text-align: left;
}

.footer-copyright p {
    margin: 0;
    color: #666;
    font-size: 14px;
}

.footer-logos {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.footer-logo {
    width: 90px;
    height: 55px;
    background: transparent;
}

.footer-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    background: transparent;
}

.footer-privacy {
    text-align: right;
}

.footer-privacy a {
    color: #0B1A51;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.footer-privacy a:hover {
    color: #0B1A51;
}

/* Address Section Responsive */
@media (max-width: 768px) {
    .address-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .address-jp,
    .address-en {
        text-align: center;
    }
    
    .footer-address-section {
        margin-top: 30px;
        padding-top: 25px;
    }
    
    .footer-address-section h3 {
        font-size: 18px;
        margin-bottom: 15px;
    }
    
    
    .address-jp p,
    .address-en p {
        font-size: 13px;
    }
}