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

:root {
    --primary-blue: #1e5aa8;
    --primary-orange: #ff8c42;
    --dark-blue: #0d3a6b;
    --light-blue: #e8f1fa;
    --text-dark: #333333;
    --text-gray: #666666;
    --text-light: #999999;
    --white: #ffffff;
    --bg-gray: #f7f9fc;
    --border-gray: #e0e0e0;
    --success-green: #4caf50;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.2);
}

html {
    scroll-behavior: smooth;
    -webkit-tap-highlight-color: transparent;
}

/* タッチデバイス最適化 */
@media (hover: none) and (pointer: coarse) {
    .feature-card:hover,
    .benefit-item:hover,
    .vehicle-step:hover,
    .menu-item:hover {
        transform: none;
    }
    
    .feature-card:active,
    .benefit-item:active,
    .vehicle-step:active {
        transform: scale(0.98);
    }
    
    .btn:active {
        transform: scale(0.96);
    }
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--text-dark);
    line-height: 1.7;
    background-color: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-text-size-adjust: 100%;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ================================================
   Header
   ================================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-image {
    height: 48px;
    width: auto;
    transition: transform 0.3s ease;
}

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

.nav {
    display: flex;
    gap: 28px;
    align-items: center;
}

.nav-link {
    color: #1e3c72;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 8px 16px;
    border-radius: 6px;
    transition: color 0.3s ease, background-color 0.3s ease;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
}

.nav-link:hover {
    color: #ff6b35;
    background-color: rgba(30, 60, 114, 0.08);
}

.contact-btn {
    background: linear-gradient(135deg, #ff6b35 0%, #ff8c42 100%);
    color: #ffffff;
    border-radius: 30px;
    padding: 10px 24px;
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.3);
}

.contact-btn:hover {
    color: #ffffff;
    box-shadow: 0 8px 26px rgba(255, 107, 53, 0.5);
    transform: translateY(-2px);
}

@media (max-width: 1024px) {
    .nav {
        gap: 18px;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 10px 0;
    }

    .header-content {
        flex-direction: column;
        gap: 12px;
        padding: 12px 0;
    }

    .logo-image {
        height: 42px;
    }

    .nav {
        width: 100%;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }

    .nav-link {
        font-size: 0.9rem;
        padding: 8px 14px;
    }

    .contact-btn {
        padding: 8px 20px;
    }
}

/* ================================================
   Hero Section
   ================================================ */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--white) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 140, 66, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 48px;
    font-weight: 900;
    line-height: 1.3;
    color: var(--dark-blue);
    margin-bottom: 20px;
}

.hero-title-main {
    display: block;
}

.hero-subtitle {
    font-size: 22px;
    color: var(--text-gray);
    margin-bottom: 30px;
}

.hero-features {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 40px;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    font-weight: 500;
}

.hero-feature i {
    color: var(--success-green);
    font-size: 20px;
}

.hero-cta {
    display: flex;
    gap: 20px;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    padding: 40px;
}

.card-mockup {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    padding: 50px 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    text-align: center;
    transition: transform 0.3s ease;
}

.card-mockup:hover {
    transform: translateY(-10px);
}

.card-mockup i {
    font-size: 80px;
    margin-bottom: 15px;
}

.card-text {
    font-size: 18px;
    font-weight: 700;
}

.pass-card {
    background: linear-gradient(135deg, var(--primary-orange), #ff7420);
}

.arrow-transform {
    font-size: 40px;
    color: var(--primary-orange);
    animation: bounce 2s infinite;
}

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

/* ================================================
   Buttons
   ================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 16px;
    min-height: 48px;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

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

.btn-primary:hover {
    background-color: #ff7420;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
    background-color: var(--primary-blue);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: 16px 40px;
    font-size: 18px;
}

/* ================================================
   Section Styles
   ================================================ */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 42px;
    font-weight: 900;
    color: var(--dark-blue);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--primary-orange));
    border-radius: 2px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-gray);
    margin-top: 20px;
}

/* ================================================
   Features Section
   ================================================ */
.features {
    padding: 80px 0;
    background-color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.feature-card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    position: relative;
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-orange);
}

.feature-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 48px;
    font-weight: 900;
    color: var(--light-blue);
    font-family: 'Roboto', sans-serif;
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-orange));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.feature-icon i {
    font-size: 36px;
    color: var(--white);
}

.feature-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark-blue);
    margin-bottom: 15px;
}

.feature-text {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
}

/* ================================================
   About Section
   ================================================ */
.about {
    padding: 80px 0;
    background-color: var(--bg-gray);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-description {
    font-size: 18px;
    line-height: 1.9;
    margin-bottom: 30px;
}

.about-description strong {
    color: var(--primary-blue);
    font-weight: 700;
}

.about-highlight {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-orange));
    color: var(--white);
    padding: 25px 30px;
    border-radius: 10px;
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 15px;
}

.about-highlight i {
    font-size: 28px;
}

.about-visual {
    background-color: var(--white);
    padding: 50px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    text-align: center;
}

.chip-icon {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.chip-icon i {
    font-size: 60px;
    color: var(--white);
}

.chip-label {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark-blue);
    margin-bottom: 10px;
}

.chip-types {
    font-size: 16px;
    color: var(--text-gray);
    font-weight: 500;
}

/* ================================================
   Benefits Section
   ================================================ */
.benefits {
    padding: 80px 0;
    background-color: var(--white);
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.benefit-item {
    display: flex;
    gap: 30px;
    background-color: var(--bg-gray);
    padding: 40px;
    border-radius: 15px;
    border-left: 5px solid var(--primary-orange);
    transition: all 0.3s ease;
}

.benefit-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-md);
}

.benefit-badge {
    background: linear-gradient(135deg, var(--primary-orange), #ff7420);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 18px;
    font-weight: 700;
    white-space: nowrap;
    height: fit-content;
}

.benefit-content {
    flex: 1;
}

.benefit-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark-blue);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.benefit-title i {
    color: var(--primary-blue);
}

.small-text {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-gray);
}

.benefit-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.benefit-details p {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 16px;
    color: var(--text-gray);
}

.benefit-details i {
    color: var(--success-green);
    font-size: 18px;
    margin-top: 2px;
}

/* ================================================
   Management Section
   ================================================ */
.management {
    padding: 80px 0;
    background-color: var(--light-blue);
}

.management-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.management-intro {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-gray);
    margin-bottom: 30px;
}

.management-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.management-feature {
    display: flex;
    align-items: center;
    gap: 15px;
    background-color: var(--white);
    padding: 20px;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
}

.management-feature i {
    font-size: 32px;
    color: var(--primary-blue);
}

.management-feature strong {
    color: var(--dark-blue);
}

.management-menu {
    margin-top: 30px;
}

.menu-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark-blue);
    margin-bottom: 20px;
}

.menu-items {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background-color: var(--white);
    border-radius: 8px;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.menu-item:hover {
    background-color: var(--primary-blue);
    color: var(--white);
    transform: scale(1.05);
}

.menu-item i {
    font-size: 18px;
    color: var(--primary-orange);
}

.menu-item:hover i {
    color: var(--white);
}

.management-screenshot {
    background-color: var(--white);
    padding: 20px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.dashboard-image {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
}

/* ================================================
   Vehicle Section
   ================================================ */
.vehicle {
    padding: 80px 0;
    background-color: var(--white);
}

.vehicle-highlight {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    padding: 30px 40px;
    border-radius: 15px;
    text-align: center;
    margin-bottom: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.vehicle-highlight i {
    font-size: 48px;
}

.vehicle-highlight h3 {
    font-size: 24px;
    font-weight: 700;
}

.vehicle-steps {
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.vehicle-step {
    display: flex;
    gap: 30px;
    align-items: center;
    background-color: var(--bg-gray);
    padding: 30px;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.vehicle-step:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-md);
}

.step-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary-orange), #ff7420);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.step-icon i {
    font-size: 48px;
    color: var(--white);
}

.step-content h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.step-content p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.7;
}

.vehicle-arrow {
    text-align: center;
    font-size: 36px;
    color: var(--primary-orange);
    margin: 10px 0;
}

/* ================================================
   Testimonial Section
   ================================================ */
.testimonial {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--light-blue), var(--white));
}

.testimonial-card {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--white);
    padding: 50px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.quote-icon {
    position: absolute;
    top: 30px;
    left: 30px;
    font-size: 48px;
    color: var(--primary-orange);
    opacity: 0.3;
}

.testimonial-text {
    font-size: 18px;
    line-height: 1.9;
    color: var(--text-dark);
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 20px;
    padding-top: 20px;
    border-top: 2px solid var(--border-gray);
}

.author-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-orange));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.author-icon i {
    font-size: 28px;
    color: var(--white);
}

.author-name {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark-blue);
}

.author-location {
    font-size: 14px;
    color: var(--text-gray);
}

/* ================================================
   Contact Section
   ================================================ */
.contact {
    padding: 80px 0;
    background-color: var(--bg-gray);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.company-logo {
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    border-radius: 15px;
    margin-bottom: 30px;
}

.company-name {
    font-size: 28px;
    font-weight: 900;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.company-name-ja {
    font-size: 18px;
    font-weight: 500;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    gap: 20px;
    padding: 20px;
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
}

.contact-item i {
    font-size: 28px;
    color: var(--primary-orange);
    margin-top: 5px;
}

.contact-item strong {
    display: block;
    font-size: 16px;
    color: var(--dark-blue);
    margin-bottom: 8px;
}

.contact-item p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
}

.phone-number {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-blue);
}

.contact-item a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
}

.contact-item a:hover {
    text-decoration: underline;
}

.development-info {
    margin-top: 20px;
    padding: 20px;
    background-color: var(--white);
    border-radius: 10px;
    font-size: 14px;
    color: var(--text-gray);
}

.development-info strong {
    display: block;
    color: var(--dark-blue);
    margin-bottom: 8px;
}

.cta-box {
    background-color: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    text-align: center;
}

.cta-box h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--dark-blue);
    margin-bottom: 20px;
}

.cta-box p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 30px;
}

.cta-box .btn {
    display: block;
    margin: 15px 0;
    width: 100%;
    justify-content: center;
}

/* ================================================
   Footer
   ================================================ */
.footer {
    background-color: var(--dark-blue);
    color: var(--white);
    padding: 40px 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.footer-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 15px;
}

.footer-logo-image {
    height: 60px;
    width: auto;
}

.footer-text {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

.footer-copy {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 10px;
}

/* ================================================
   Responsive Design
   ================================================ */

/* Tablet Layout (1024px以下) */
@media (max-width: 1024px) {
    .hero-content,
    .about-content,
    .management-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .hero-visual {
        flex-direction: column;
        gap: 20px;
    }

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

    .card-mockup {
        padding: 40px 30px;
    }

    .card-mockup i {
        font-size: 60px;
    }
}

/* Small Tablet (768px以下) */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    /* Header */
    .header {
        padding: 10px 0;
    }

    .header-content {
        flex-direction: column;
        gap: 15px;
        padding: 15px 0;
    }

    .logo-image {
        height: 40px;
    }

    .nav {
        width: 100%;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }

    .nav-link {
        padding: 8px 16px;
        font-size: 14px;
    }

    .contact-btn {
        padding: 8px 20px;
    }

    /* Hero Section */
    .hero {
        padding: 120px 0 50px;
    }

    .hero-badge {
        font-size: 12px;
        padding: 6px 16px;
        margin-bottom: 25px;
    }

    .hero-title {
        font-size: 32px;
        line-height: 1.3;
        margin-top: 10px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-feature {
        font-size: 14px;
    }

    .hero-feature i {
        font-size: 18px;
    }

    .hero-cta {
        flex-direction: column;
        gap: 15px;
    }

    .hero-visual {
        padding: 20px;
    }

    .card-mockup {
        padding: 30px 20px;
    }

    .card-mockup i {
        font-size: 50px;
    }

    .card-text {
        font-size: 16px;
    }

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

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

    /* Features */
    .features,
    .about,
    .benefits,
    .management,
    .vehicle,
    .testimonial,
    .contact {
        padding: 60px 0;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .feature-card {
        padding: 30px 25px;
    }

    .feature-number {
        font-size: 36px;
    }

    .feature-icon {
        width: 70px;
        height: 70px;
    }

    .feature-icon i {
        font-size: 32px;
    }

    .feature-title {
        font-size: 20px;
    }

    .feature-text {
        font-size: 14px;
    }

    /* Benefits */
    .benefit-item {
        flex-direction: column;
        align-items: flex-start;
        padding: 30px;
        gap: 20px;
    }

    .benefit-badge {
        font-size: 16px;
        padding: 8px 16px;
    }

    .benefit-title {
        font-size: 20px;
        flex-wrap: wrap;
    }

    .benefit-details p {
        font-size: 14px;
    }

    /* Management */
    .management-content {
        gap: 30px;
    }

    .management-intro {
        font-size: 15px;
    }

    .management-feature {
        padding: 15px;
        font-size: 14px;
    }

    .management-feature i {
        font-size: 28px;
    }

    .menu-items {
        grid-template-columns: 1fr;
    }

    .management-screenshot {
        padding: 15px;
    }

    /* Vehicle */
    .vehicle-highlight {
        padding: 25px 30px;
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }

    .vehicle-highlight i {
        font-size: 36px;
    }

    .vehicle-highlight h3 {
        font-size: 20px;
    }

    .vehicle-step {
        flex-direction: column;
        text-align: center;
        padding: 25px;
        gap: 20px;
    }

    .step-icon {
        width: 80px;
        height: 80px;
    }

    .step-icon i {
        font-size: 40px;
    }

    .step-content h4 {
        font-size: 18px;
    }

    .step-content p {
        font-size: 14px;
    }

    /* Testimonial */
    .testimonial-card {
        padding: 30px;
    }

    .quote-icon {
        font-size: 36px;
        top: 20px;
        left: 20px;
    }

    .testimonial-text {
        font-size: 16px;
    }

    .author-name {
        font-size: 18px;
    }

    /* Contact */
    .company-logo {
        padding: 25px;
    }

    .company-name {
        font-size: 24px;
    }

    .company-name-ja {
        font-size: 16px;
    }

    .contact-item {
        padding: 15px;
    }

    .contact-item i {
        font-size: 24px;
    }

    .cta-box {
        padding: 30px 20px;
    }

    .cta-box h3 {
        font-size: 24px;
    }

    .cta-box p {
        font-size: 15px;
    }

    /* Footer */
    .footer-logo-image {
        height: 50px;
    }
}

/* Mobile (480px以下) */
@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }

    /* Header */
    .logo-image {
        height: 35px;
    }

    .nav-link {
        font-size: 13px;
        padding: 6px 12px;
    }

    /* Hero Section */
    .hero {
        padding: 110px 0 40px;
    }

    .hero-badge {
        font-size: 11px;
        padding: 5px 12px;
        margin-bottom: 20px;
    }

    .hero-title {
        font-size: 24px;
        line-height: 1.4;
        margin-top: 5px;
    }

    .hero-subtitle {
        font-size: 16px;
        margin-bottom: 20px;
    }

    .hero-features {
        gap: 12px;
        margin-bottom: 30px;
    }

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

    .hero-feature i {
        font-size: 16px;
    }

    .btn {
        width: 100%;
        justify-content: center;
        padding: 12px 24px;
        font-size: 15px;
    }

    .btn i {
        font-size: 14px;
    }

    .hero-visual {
        padding: 15px;
    }

    .card-mockup {
        padding: 25px 15px;
    }

    .card-mockup i {
        font-size: 40px;
        margin-bottom: 10px;
    }

    .card-text {
        font-size: 14px;
    }

    .arrow-transform {
        font-size: 30px;
    }

    /* Sections */
    .features,
    .about,
    .benefits,
    .management,
    .vehicle,
    .testimonial,
    .contact {
        padding: 50px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .section-title {
        font-size: 24px;
        margin-bottom: 10px;
    }

    .section-title::after {
        width: 60px;
        height: 3px;
    }

    .section-subtitle {
        font-size: 14px;
    }

    /* Features */
    .features-grid {
        gap: 20px;
    }

    .feature-card {
        padding: 25px 20px;
    }

    .feature-number {
        font-size: 32px;
        top: 15px;
        right: 15px;
    }

    .feature-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 20px;
    }

    .feature-icon i {
        font-size: 28px;
    }

    .feature-title {
        font-size: 18px;
        margin-bottom: 12px;
    }

    .feature-text {
        font-size: 13px;
    }

    /* About */
    .about-description {
        font-size: 15px;
        line-height: 1.8;
        margin-bottom: 20px;
    }

    .about-highlight {
        padding: 20px 20px;
        font-size: 15px;
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .about-highlight i {
        font-size: 24px;
    }

    .about-visual {
        padding: 30px 20px;
    }

    .chip-icon {
        width: 100px;
        height: 100px;
    }

    .chip-icon i {
        font-size: 50px;
    }

    .chip-label {
        font-size: 18px;
    }

    .chip-types {
        font-size: 14px;
    }

    /* Benefits */
    .benefits-list {
        gap: 25px;
    }

    .benefit-item {
        padding: 20px;
        gap: 15px;
    }

    .benefit-badge {
        font-size: 14px;
        padding: 6px 14px;
    }

    .benefit-title {
        font-size: 18px;
        margin-bottom: 15px;
    }

    .benefit-title i {
        font-size: 20px;
    }

    .small-text {
        font-size: 14px;
        display: block;
        margin-top: 5px;
    }

    .benefit-details {
        gap: 10px;
    }

    .benefit-details p {
        font-size: 13px;
    }

    .benefit-details i {
        font-size: 16px;
    }

    /* Management */
    .management-intro {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .management-features {
        gap: 15px;
    }

    .management-feature {
        padding: 15px;
        font-size: 13px;
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .management-feature i {
        font-size: 24px;
    }

    .menu-title {
        font-size: 18px;
        margin-bottom: 15px;
    }

    .menu-item {
        padding: 10px;
        font-size: 13px;
    }

    .menu-item i {
        font-size: 16px;
    }

    .management-screenshot {
        padding: 10px;
    }

    .dashboard-image {
        border-radius: 8px;
    }

    /* Vehicle */
    .vehicle-highlight {
        padding: 20px;
    }

    .vehicle-highlight i {
        font-size: 32px;
    }

    .vehicle-highlight h3 {
        font-size: 17px;
        line-height: 1.5;
    }

    .vehicle-steps {
        gap: 20px;
    }

    .vehicle-step {
        padding: 20px;
    }

    .step-icon {
        width: 70px;
        height: 70px;
    }

    .step-icon i {
        font-size: 36px;
    }

    .step-content h4 {
        font-size: 16px;
    }

    .step-content p {
        font-size: 13px;
    }

    .vehicle-arrow {
        font-size: 28px;
        margin: 5px 0;
    }

    /* Testimonial */
    .testimonial-card {
        padding: 25px 20px;
    }

    .quote-icon {
        font-size: 32px;
        top: 15px;
        left: 15px;
    }

    .testimonial-text {
        font-size: 14px;
        line-height: 1.8;
        margin-bottom: 20px;
    }

    .testimonial-author {
        gap: 15px;
        padding-top: 15px;
    }

    .author-icon {
        width: 50px;
        height: 50px;
    }

    .author-icon i {
        font-size: 24px;
    }

    .author-name {
        font-size: 16px;
    }

    .author-location {
        font-size: 13px;
    }

    /* Contact */
    .contact-content {
        gap: 40px;
    }

    .company-logo {
        padding: 20px;
    }

    .company-name {
        font-size: 20px;
        letter-spacing: 1px;
        margin-bottom: 8px;
    }

    .company-name-ja {
        font-size: 14px;
    }

    .contact-details {
        gap: 20px;
    }

    .contact-item {
        padding: 15px;
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .contact-item i {
        font-size: 22px;
        margin-top: 0;
    }

    .contact-item strong {
        font-size: 14px;
    }

    .contact-item p {
        font-size: 13px;
    }

    .contact-item a {
        word-break: break-all;
    }

    .cta-box {
        padding: 25px 15px;
    }

    .cta-box h3 {
        font-size: 20px;
        margin-bottom: 15px;
    }

    .cta-box p {
        font-size: 14px;
        line-height: 1.7;
        margin-bottom: 20px;
    }

    .cta-box .btn {
        margin: 10px 0;
        padding: 14px 20px;
    }

    /* Footer */
    .footer {
        padding: 30px 0;
    }

    .footer-logo-image {
        height: 45px;
    }

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

    .footer-copy {
        font-size: 11px;
    }
}

/* Extra Small Mobile (360px以下) */
@media (max-width: 360px) {
    .hero {
        padding: 100px 0 35px;
    }

    .hero-badge {
        margin-bottom: 18px;
    }

    .hero-title {
        font-size: 22px;
        margin-top: 5px;
    }

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

    .feature-title,
    .benefit-title {
        font-size: 16px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }

    .card-mockup {
        padding: 20px 12px;
    }
}