:root {
    --primary-color: #0055a4;
    --secondary-color: #ffffff;
    --text-color: #333333;
    --background-light: #f5f5f5;
}

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

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

/* Header Styles */
header {
    background-color: var(--secondary-color);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.top-nav {
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 2rem;
}

.language-select a {
    color: white;
    text-decoration: none;
    margin-left: 1rem;
}

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

.main-nav ul {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    gap: 1rem;
}

.main-nav ul li a {
    color: var(--text-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.main-nav ul li a:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    background-color: var(--primary-color);
    color: white;
    padding: 4rem 2rem;
    text-align: center;
}

.quick-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
}

.quick-links a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: 1px solid white;
    border-radius: 4px;
}

/* News Section */
.latest-news {
    padding: 3rem 2rem;
    background-color: var(--background-light);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* Services Section */
.services {
    padding: 3rem 2rem;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.service-item {
    padding: 1.5rem;
    background-color: var(--background-light);
    border-radius: 4px;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: white;
    padding: 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.social-links a {
    display: block;
    color: white;
    text-decoration: none;
    margin-bottom: 0.5rem;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .main-nav {
        flex-direction: column;
        text-align: center;
    }

    .main-nav ul {
        flex-direction: column;
        align-items: center;
    }

    .main-nav ul li {
        width: 100%;
        text-align: center;
    }
}

/* Solutions Page Styles */
.solutions-page {
    padding-bottom: 3rem;
}

.solution-hero {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 4rem 2rem;
    margin-bottom: 3rem;
}

.solution-hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.solution-detail {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.solution-item {
    margin-bottom: 4rem;
    padding: 2rem;
    background-color: var(--background-light);
    border-radius: 8px;
}

.solution-item h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--primary-color);
}

.solution-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.solution-text h3 {
    color: var(--text-color);
    margin: 1.5rem 0 1rem 0;
}

.solution-text ul {
    list-style: none;
    padding-left: 1.5rem;
}

.solution-text ul li {
    position: relative;
    margin-bottom: 0.5rem;
}

.solution-text ul li:before {
    content: "•";
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: -1.5rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .solution-hero h1 {
        font-size: 2rem;
    }

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

    .solution-item {
        padding: 1.5rem;
    }
}

/* SDWAN Page Styles */
.sdwan-page {
    padding-bottom: 3rem;
}

.sdwan-hero {
    background-color: var(--primary-color);
    color: white;
    padding: 6rem 2rem;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: white;
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background-color: var(--background-light);
    transform: translateY(-2px);
}

/* Pain Points Section */
.pain-points {
    padding: 4rem 2rem;
    background-color: var(--background-light);
}

.points-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.point-item {
    text-align: center;
    padding: 2rem;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.point-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* Advantages Section */
.advantages {
    padding: 4rem 2rem;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.advantage-item {
    text-align: center;
    padding: 1.5rem;
    background-color: var(--background-light);
    border-radius: 8px;
}

/* Scenarios Section */
.scenarios {
    padding: 4rem 2rem;
    background-color: var(--background-light);
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.scenario-category {
    padding: 2rem;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.scenario-category ul {
    list-style: none;
    padding: 0;
    margin-top: 1rem;
}

.scenario-category ul li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
}

/* Global Coverage Section */
.global-coverage {
    padding: 4rem 2rem;
    text-align: center;
}

.coverage-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Service Process Section */
.service-process {
    padding: 4rem 2rem;
    background-color: var(--background-light);
    text-align: center;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.step {
    position: relative;
    padding: 2rem;
}

.step-number {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-weight: bold;
}

.process-cta {
    margin-top: 3rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .point-item, .advantage-item {
        padding: 1rem;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
    }
}

/* Exhibition Page Styles */
.exhibition-page {
    padding-bottom: 3rem;
}

.exhibition-hero {
    background-color: var(--primary-color);
    color: white;
    padding: 6rem 2rem;
    text-align: center;
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.hero-badges span {
    padding: 0.5rem 1.5rem;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    font-size: 0.9rem;
}

/* Service Overview */
.service-overview {
    padding: 4rem 2rem;
    background-color: var(--background-light);
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.overview-item {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.overview-item ul {
    list-style: none;
    padding-left: 1.5rem;
    margin-top: 1rem;
}

.overview-item ul li {
    position: relative;
    margin-bottom: 0.5rem;
}

.overview-item ul li:before {
    content: "✓";
    color: var(--primary-color);
    position: absolute;
    left: -1.5rem;
}

/* Equipment Rental */
.equipment-rental {
    padding: 4rem 2rem;
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.equipment-card {
    background-color: var(--background-light);
    padding: 2rem;
    border-radius: 8px;
}

.equipment-item {
    padding: 1rem 0;
    border-bottom: 1px solid #eee;
}

.equipment-item:last-child {
    border-bottom: none;
}

.item-name {
    font-weight: bold;
    display: block;
}

.item-desc {
    color: #666;
    font-size: 0.9rem;
}

/* Process Timeline */
.process-timeline {
    max-width: 800px;
    margin: 3rem auto;
    position: relative;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background-color: var(--primary-color);
}

.process-step {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
}

.step-number {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-right: 1rem;
}

/* Contact Section */
.contact-section {
    padding: 4rem 2rem;
    text-align: center;
    background-color: var(--background-light);
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-content p {
    margin-bottom: 2rem;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .hero-badges {
        flex-wrap: wrap;
    }
    
    .process-timeline::before {
        left: 20px;
    }
    
    .process-step {
        padding-left: 40px;
    }
}

/* Enterprise Network Page Styles */
.enterprise-page {
    padding-bottom: 3rem;
}

.enterprise-hero {
    background-color: var(--primary-color);
    color: white;
    padding: 6rem 2rem;
    text-align: center;
}

/* Industry Solutions Section */
.industry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.industry-card {
    background-color: var(--background-light);
    padding: 2rem;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.industry-card:hover {
    transform: translateY(-5px);
}

.industry-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Service Commitment Section */
.service-commitment {
    padding: 4rem 2rem;
    background-color: var(--background-light);
    text-align: center;
}

.commitment-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-top: 2rem;
}

.commitment-item h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin-top: 1rem;
}

.feature-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
}

.feature-list li:last-child {
    border-bottom: none;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .industry-card {
        padding: 1.5rem;
    }
    
    .commitment-item h3 {
        font-size: 2rem;
    }
}

/* Cloud Service Page Styles */
.cloud-service-page {
    padding-bottom: 3rem;
}

.cloud-hero {
    background-color: var(--primary-color);
    color: white;
    padding: 6rem 2rem;
    text-align: center;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 3rem;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.stat-desc {
    font-size: 1rem;
}

/* Cloud Process Section */
.cloud-process {
    padding: 4rem 2rem;
    background-color: var(--background-light);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.process-item {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.process-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.process-item ul {
    list-style: none;
    padding-left: 1.5rem;
}

.process-item ul li {
    position: relative;
    margin-bottom: 0.8rem;
}

.process-item ul li:before {
    content: "→";
    color: var(--primary-color);
    position: absolute;
    left: -1.5rem;
}

/* Cloud Services Section */
.cloud-services {
    padding: 4rem 2rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.service-card {
    background-color: var(--background-light);
    padding: 2rem;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Success Case Section */
.success-case {
    padding: 4rem 2rem;
    background-color: var(--background-light);
}

.case-content {
    max-width: 1000px;
    margin: 2rem auto 0;
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.case-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.case-details h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.case-details ul {
    list-style: none;
    padding-left: 1.5rem;
}

.case-details ul li {
    position: relative;
    margin-bottom: 0.8rem;
}

.case-details ul li:before {
    content: "✓";
    color: var(--primary-color);
    position: absolute;
    left: -1.5rem;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .case-details {
        grid-template-columns: 1fr;
    }
}

/* News Detail Page Styles */
.news-detail-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 2rem;
}

.news-content {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.news-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--primary-color);
}

.news-header h1 {
    font-size: 2rem;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.news-meta {
    color: #666;
    font-size: 0.9rem;
}

.news-meta span {
    margin-right: 1.5rem;
}

.news-summary {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #444;
    margin-bottom: 2rem;
    padding: 1rem;
    background-color: var(--background-light);
    border-radius: 4px;
}

.trend-section {
    margin-bottom: 2.5rem;
}

.trend-section h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.trend-features, .security-measures {
    list-style: none;
    padding-left: 1.5rem;
    margin: 1rem 0;
}

.trend-features li, .security-measures li {
    position: relative;
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
}

.trend-features li:before, .security-measures li:before {
    content: "•";
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.data-highlight {
    display: flex;
    justify-content: space-around;
    margin: 2rem 0;
    padding: 2rem;
    background-color: var(--background-light);
    border-radius: 8px;
}

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

.data-number {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}

.data-desc {
    font-size: 0.9rem;
    color: #666;
}

.news-conclusion {
    margin: 2rem 0;
    padding: 1.5rem;
    background-color: var(--background-light);
    border-radius: 8px;
}

.related-news {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #eee;
}

.related-news ul {
    list-style: none;
    padding: 0;
}

.related-news li {
    margin-bottom: 1rem;
}

.related-news a {
    color: var(--text-color);
    text-decoration: none;
}

.related-news a:hover {
    color: var(--primary-color);
}

/* Sidebar Styles */
.news-sidebar {
    position: sticky;
    top: 2rem;
}

.hot-news {
    background-color: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.hot-news h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.hot-news ul {
    list-style: none;
    padding: 0;
}

.hot-news li {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #eee;
}

.hot-news li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.hot-news a {
    color: var(--text-color);
    text-decoration: none;
}

.hot-news a:hover {
    color: var(--primary-color);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .news-detail-page {
        grid-template-columns: 1fr;
    }

    .news-header h1 {
        font-size: 1.5rem;
    }

    .data-highlight {
        flex-direction: column;
        gap: 1.5rem;
    }

    .news-sidebar {
        position: static;
    }
}

/* 服务项目链接样式 */
.service-item h3 a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.service-item h3 a:hover {
    color: var(--primary-color);
}

/* 页面特定样式 */
.sdwan-page,
.exhibition-page,
.enterprise-page,
.cloud-service-page,
.news-detail-page {
    padding-top: 2rem;
}

/* 通用hero样式 */
.sdwan-hero,
.exhibition-hero,
.enterprise-hero,
.cloud-hero {
    background-color: var(--primary-color);
    color: white;
    padding: 6rem 2rem;
    text-align: center;
}

/* 通用网格布局 */
.points-grid,
.advantages-grid,
.scenarios-grid,
.process-grid,
.services-grid,
.equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* 通用section样式 */
section {
    padding: 4rem 2rem;
}

section h2 {
    text-align: center;
    margin-bottom: 2rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .points-grid,
    .advantages-grid,
    .scenarios-grid,
    .process-grid,
    .services-grid,
    .equipment-grid {
        grid-template-columns: 1fr;
    }
    
    section {
        padding: 2rem 1rem;
    }
}

/* 日本語フォントの設定 */
body, h1, h2, h3, p, a, button, input, select, textarea {
    font-family: 'Noto Sans JP', sans-serif;
}

/* 日本語テキストのための特別なスタイル調整 */
.ja-text {
    line-height: 1.7; /* 日本語テキストの読みやすさ向上 */
}

/* 方向性が異なる言語のためのRTLサポート（必要な場合） */
/* ... 既存コード ... */