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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', sans-serif;
    line-height: 1.7;
    color: #333;
    background-color: #fff;
    overflow-x: hidden;
}

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

/* ========================================
   Typography
======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* ========================================
   Header
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: #0066CC;
}

.logo i {
    font-size: 28px;
}

.nav {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav a {
    font-size: 15px;
    font-weight: 500;
    color: #333;
    transition: color 0.3s ease;
}

.nav a:hover {
    color: #0066CC;
}

.nav-cta {
    background: #FF6B35;
    color: #fff !important;
    padding: 10px 20px;
    border-radius: 5px;
}

.nav-cta:hover {
    background: #E55A2B;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: #333;
    cursor: pointer;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: #fff;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
    z-index: 1001;
    transition: right 0.3s ease;
    padding: 20px;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-close {
    background: none;
    border: none;
    font-size: 24px;
    color: #333;
    cursor: pointer;
    position: absolute;
    top: 20px;
    right: 20px;
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 60px;
}

.mobile-nav a {
    font-size: 16px;
    font-weight: 500;
    color: #333;
    padding: 10px;
    border-bottom: 1px solid #f0f0f0;
}

/* ========================================
   Hero Section
======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #003D7A 0%, #0066CC 100%);
    color: #fff;
    padding: 120px 0 80px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-title {
    font-size: 48px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 22px;
    font-weight: 500;
    margin-bottom: 25px;
    opacity: 0.95;
}

.hero-description {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-description strong {
    font-weight: 700;
    color: #FFD700;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.hero-feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.hero-feature:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.hero-feature i {
    font-size: 32px;
    color: #FFD700;
}

.hero-feature span {
    font-size: 14px;
    font-weight: 500;
}

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

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 24px;
    color: rgba(255, 255, 255, 0.6);
    animation: bounce 2s infinite;
}

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

/* ========================================
   Buttons
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: #FF6B35;
    color: #fff;
}

.btn-primary:hover {
    background: #E55A2B;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

.btn-secondary {
    background: #FF6B35;
    color: #fff;
}

.btn-secondary:hover {
    background: #E55A2B;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

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

.section-title {
    font-size: 36px;
    font-weight: 900;
    color: #003D7A;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #FF6B35, #0066CC);
    border-radius: 2px;
}

.section-description {
    font-size: 16px;
    color: #1F3B64;
    max-width: 700px;
    margin: 20px auto 0;
    line-height: 1.8;
	font-weight: 600; /* or 700 */
}

/* ========================================
   Challenges Section
======================================== */
.challenges {
    padding: 100px 0;
    background: #F8F9FA;
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.challenge-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    text-align: center;
}

.challenge-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.challenge-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, #FF6B35, #FF8C5A);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 36px;
}

.challenge-title {
    font-size: 20px;
    font-weight: 700;
    color: #003D7A;
    margin-bottom: 15px;
}

.challenge-description {
    font-size: 15px;
    color: #666;
    line-height: 1.7;
}

/* ========================================
   Solutions Section
======================================== */
.solutions {
    padding: 100px 0;
    background: #fff;
}

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

.solution-item {
    display: flex;
    gap: 30px;
    background: #F8F9FA;
    padding: 40px;
    border-radius: 20px;
    border-left: 6px solid #0066CC;
    transition: all 0.3s ease;
}

.solution-item:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateX(5px);
}

.solution-number {
    font-size: 48px;
    font-weight: 900;
    color: rgba(0, 102, 204, 0.2);
    line-height: 1;
    min-width: 80px;
}

.solution-content {
    flex: 1;
    display: flex;
    gap: 30px;
}

.solution-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #0066CC, #003D7A);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 36px;
    flex-shrink: 0;
}

.solution-text {
    flex: 1;
}

.solution-title {
    font-size: 22px;
    font-weight: 700;
    color: #003D7A;
    margin-bottom: 15px;
}

.solution-description {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.solution-features {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.solution-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: #555;
}

.solution-features i {
    color: #0066CC;
    font-size: 16px;
}

/* ========================================
   Merits Section
======================================== */
.merits {
    padding: 100px 0;
    background: linear-gradient(135deg, #003D7A 0%, #0066CC 100%);
    color: #fff;
}

.merits .section-title {
    color: #fff;
}

.merits .section-title::after {
    background: #FFD700;
}

.merits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.merit-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 40px 30px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
}

.merit-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.merit-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 60px;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.1);
    line-height: 1;
}

.merit-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: rgba(255, 215, 0, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFD700;
    font-size: 36px;
}

.merit-title {
    font-size: 28px;
    font-weight: 900;
    text-align: center;
    margin-bottom: 10px;
}

.merit-subtitle {
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    opacity: 0.9;
    margin-bottom: 20px;
}

.merit-description {
    font-size: 15px;
    line-height: 1.8;
    opacity: 0.9;
    text-align: center;
    margin-bottom: 30px;
}

.merit-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.merit-stat {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.merit-stat-value {
    font-size: 32px;
    font-weight: 900;
    color: #FFD700;
    margin-bottom: 8px;
}

.merit-stat-label {
    font-size: 13px;
    opacity: 0.9;
}

/* ========================================
   Specs Section
======================================== */
.specs {
    padding: 100px 0;
    background: #F8F9FA;
}

.specs-content {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.specs-subtitle {
    font-size: 24px;
    font-weight: 700;
    color: #003D7A;
    margin-bottom: 30px;
    text-align: center;
}

.specs-table-wrapper {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
}

.specs-table thead {
    background: linear-gradient(135deg, #003D7A, #0066CC);
    color: #fff;
}

.specs-table th {
    padding: 20px;
    text-align: left;
    font-size: 16px;
    font-weight: 700;
}

.specs-table tbody tr {
    border-bottom: 1px solid #E8E8E8;
    transition: background 0.2s ease;
}

.specs-table tbody tr:hover {
    background: #F8F9FA;
}

.specs-table td {
    padding: 20px;
    font-size: 15px;
}

.specs-table td:first-child {
    font-weight: 600;
    color: #003D7A;
    width: 35%;
}

.specs-table td:first-child i {
    margin-right: 10px;
    color: #0066CC;
}

.custom-options {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.custom-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.custom-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: #F8F9FA;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.custom-item:hover {
    background: #E8F4FF;
    transform: translateX(5px);
}

.custom-item i {
    color: #0066CC;
    font-size: 20px;
}

.custom-item span {
    font-size: 15px;
    font-weight: 500;
    color: #333;
}

.structure-image {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.structure-diagram {
    background: linear-gradient(135deg, #F8F9FA 0%, #E8F4FF 100%);
    padding: 40px;
    border-radius: 15px;
    border: 2px dashed #0066CC;
}

.structure-components {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
}

.structure-component {
    text-align: center;
}

.component-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 15px;
    background: #fff;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0066CC;
    font-size: 32px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.component-label {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    line-height: 1.4;
}

.component-label small {
    font-size: 11px;
    font-weight: 400;
    color: #666;
    display: block;
    margin-top: 5px;
}

/* ========================================
   Case Study Section
======================================== */
.case-study {
    padding: 100px 0;
    background: #fff;
}

.case-card {
    background: #F8F9FA;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.case-header {
    background: linear-gradient(135deg, #003D7A, #0066CC);
    color: #fff;
    padding: 30px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.case-company {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 24px;
    font-weight: 700;
}

.case-company i {
    font-size: 32px;
}

.case-industry {
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

.case-content {
    padding: 40px;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.case-section {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    border-left: 4px solid #0066CC;
}

.case-section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: #003D7A;
    margin-bottom: 15px;
}

.case-section-title i {
    color: #0066CC;
}

.case-text {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
}

.case-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.case-result {
    text-align: center;
    padding: 25px;
    background: #E8F4FF;
    border-radius: 12px;
}

.case-result-value {
    font-size: 32px;
    font-weight: 900;
    color: #0066CC;
    margin-bottom: 10px;
}

.case-result-label {
    font-size: 14px;
    color: #666;
}

.case-quote {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    border: 2px solid #E8E8E8;
    position: relative;
    margin-top: 20px;
}

.case-quote i {
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 32px;
    color: rgba(0, 102, 204, 0.2);
}

.case-quote p {
    font-size: 16px;
    color: #555;
    line-height: 1.8;
    font-style: italic;
    padding-left: 50px;
    margin-bottom: 15px;
}

.case-quote-author {
    text-align: right;
    font-size: 14px;
    font-weight: 600;
    color: #003D7A;
}

/* ========================================
   FAQ Section
======================================== */
.faq {
    padding: 100px 0;
    background: #F8F9FA;
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.faq-item {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 25px 30px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: #F8F9FA;
}

.faq-question > i:first-child {
    color: #0066CC;
    font-size: 24px;
}

.faq-question h3 {
    flex: 1;
    font-size: 18px;
    font-weight: 700;
    color: #003D7A;
}

.faq-toggle {
    color: #999;
    transition: transform 0.3s ease;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

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

.faq-answer p {
    padding: 0 30px 30px 70px;
    font-size: 15px;
    color: #666;
    line-height: 1.8;
}

.faq-answer strong {
    color: #0066CC;
}

/* ========================================
   Contact Section
======================================== */
.contact {
    padding: 100px 0;
    background: #fff;
}

.contact-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.contact-option {
    background: #F8F9FA;
    padding: 50px 40px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.contact-option:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-10px);
}

.contact-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 30px;
    background: linear-gradient(135deg, #FF6B35, #FF8C5A);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 48px;
}

.contact-title {
    font-size: 22px;
    font-weight: 700;
    color: #003D7A;
    margin-bottom: 15px;
}

.contact-description {
    font-size: 15px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 30px;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 30px;
    background: #F8F9FA;
    border-radius: 15px;
}

.contact-info-item i {
    font-size: 28px;
    color: #0066CC;
    margin-top: 5px;
}

.contact-info-item strong {
    display: block;
    font-size: 16px;
    color: #003D7A;
    margin-bottom: 8px;
}

.contact-info-item p {
    font-size: 15px;
    color: #666;
}

/* ========================================
   Footer
======================================== */
.footer {
    background: #003D7A;
    color: #fff;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin: 0 auto 40px;
    max-width: 900px; /* ← これを追加 */
}

.footer-section {
}

.footer-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
}

.footer-title i {
    font-size: 24px;
}

.footer-description {
    font-size: 14px;
    opacity: 0.8;
    line-height: 1.7;
}

.footer-heading {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #FFD700;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    font-size: 14px;
    opacity: 0.8;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
    padding-left: 5px;
}

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

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
    font-size: 14px;
    opacity: 0.8;
}

.footer-contact i {
    color: #FFD700;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 14px;
    opacity: 0.7;
}

/* 上段ブランド（フッター上部） */
.footer-brand-top {
    text-align: center;
    margin-bottom: 30px;
}

.footer-brand-top .footer-title {
    justify-content: center; /* アイコン＋文字を中央寄せ */
}

.footer-brand-top .footer-description {
    max-width: 700px;
    margin: 10px auto 0;
}

/* ========================================
   Scroll to Top Button
======================================== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #FF6B35;
    color: #fff;
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

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

.scroll-top:hover {
    background: #E55A2B;
    transform: translateY(-5px);
}

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

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

    .hero-title {
        font-size: 32px;
    }

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

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

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

    .hero-cta {
        flex-direction: column;
    }

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

    .challenges-grid,
    .merits-grid {
        grid-template-columns: 1fr;
    }

    .solution-item {
        flex-direction: column;
        padding: 30px 20px;
    }

    .solution-content {
        flex-direction: column;
    }

    .specs-table-wrapper,
    .custom-options,
    .structure-image {
        padding: 20px;
    }

    .specs-table {
        font-size: 13px;
    }

    .specs-table th,
    .specs-table td {
        padding: 12px;
    }

    .case-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .case-content {
        padding: 20px;
    }

    .contact-options {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-title {
        font-size: 26px;
    }

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

    .btn {
        padding: 12px 20px;
        font-size: 14px;
    }

    .specs-table td:first-child {
        width: 40%;
    }

    .scroll-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
    }
}