/* CSS变量定义 */
:root {
    --bg-color: #ffffff;
    --text-color: #333333;
    --text-secondary: #666666;
    --border-color: #e5e7eb;
    --card-bg: #ffffff;
    --header-bg: #ffffff;
    --section-bg: #f8f9fa;
    --footer-bg: #1f2937;
    --footer-text: #ffffff;
    --primary-color: #2563eb;
    --shadow: rgba(0, 0, 0, 0.1);
}

/* 深色主题变量 */
[data-theme="dark"] {
    --bg-color: #111827;
    --text-color: #f9fafb;
    --text-secondary: #d1d5db;
    --border-color: #374151;
    --card-bg: #1f2937;
    --header-bg: #1f2937;
    --section-bg: #0f172a;
    --footer-bg: #030712;
    --footer-text: #f9fafb;
    --primary-color: #3b82f6;
    --shadow: rgba(0, 0, 0, 0.3);
}

/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

/* 导航栏 */
.header {
    background: var(--header-bg);
    box-shadow: 0 2px 10px var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: background-color 0.3s ease;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #1d4ed8 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 1.2rem;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.logo h2 {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.8rem;
    margin: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0;
    background: var(--section-bg);
    border-radius: 8px;
    padding: 0.5rem;
}

.nav-menu > li {
    position: relative;
}

.nav-menu > li > a {
    display: block;
    padding: 12px 20px;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.nav-menu > li > a:hover,
.nav-menu > li:hover > a {
    background: var(--primary-color);
    color: #fff;
    transform: translateY(-2px);
}

/* 下拉菜单 - 点击触发 */
.dropdown {
    position: relative;
}

.dropdown .dropbtn {
    cursor: pointer;
    user-select: none;
}

.dropdown .dropbtn::after {
    content: ' ▼';
    font-size: 0.8rem;
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.dropdown.active .dropbtn::after {
    transform: rotate(180deg);
}

.dropdown-content {
    display: none;
    position: absolute;
    background: var(--card-bg);
    min-width: 280px;
    box-shadow: 0 12px 24px var(--shadow);
    border-radius: 12px;
    top: calc(100% + 5px);
    left: 0;
    z-index: 1001;
    padding: 8px;
    border: 1px solid var(--border-color);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.dropdown-content a {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 4px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.dropdown-content a:last-child {
    margin-bottom: 0;
}

.dropdown-content a::before {
    content: '→';
    margin-right: 12px;
    color: var(--primary-color);
    font-weight: bold;
    transition: transform 0.3s ease;
}

.dropdown-content a:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1d4ed8 100%);
    color: #fff;
    transform: translateX(8px);
}

.dropdown-content a:hover::before {
    transform: translateX(4px);
    color: #fff;
}

.dropdown.active .dropdown-content {
    display: block;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 改进的下拉菜单动画 */
.dropdown.active .dropdown-content {
    animation: fadeInDown 0.3s ease;
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: background 0.3s ease;
}

.hamburger:hover {
    background: #f3f4f6;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* 主题切换按钮 */
.theme-toggle {
    display: flex;
    align-items: center;
    margin-left: 1rem;
}

.theme-btn {
    background: var(--section-bg);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.2rem;
    color: var(--text-color);
}

.theme-btn:hover {
    background: var(--border-color);
    transform: scale(1.1);
}

.theme-icon {
    transition: transform 0.3s ease;
}

.theme-btn:hover .theme-icon {
    transform: rotate(20deg);
}

/* 主要内容 */
main {
    margin-top: 80px;
}

/* 轮播英雄区域 */
.hero-carousel {
    position: relative;
    overflow: hidden;
    min-height: 600px;
    margin-top: 80px;
}

.carousel-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0;
    min-height: 600px;
    display: flex;
    align-items: center;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.6s ease-in-out;
}

/* 不同幻灯片的背景色 - 浅色主题 */
.carousel-slide:nth-child(1) {
    background: linear-gradient(135deg, #4c63d2 0%, #5a4b8c 100%);
}

.carousel-slide:nth-child(2) {
    background: linear-gradient(135deg, #d16ba5 0%, #c44569 100%);
}

.carousel-slide:nth-child(3) {
    background: linear-gradient(135deg, #3867d6 0%, #2c5aa0 100%);
}

.carousel-slide:nth-child(4) {
    background: linear-gradient(135deg, #2ed573 0%, #1e90ff 100%);
}

/* 深色主题下的轮播背景色 - 更深更柔和 */
[data-theme="dark"] .carousel-slide:nth-child(1) {
    background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
}

[data-theme="dark"] .carousel-slide:nth-child(2) {
    background: linear-gradient(135deg, #553c9a 0%, #6b46c1 100%);
}

[data-theme="dark"] .carousel-slide:nth-child(3) {
    background: linear-gradient(135deg, #1e3a8a 0%, #3730a3 100%);
}

[data-theme="dark"] .carousel-slide:nth-child(4) {
    background: linear-gradient(135deg, #065f46 0%, #047857 100%);
}

.carousel-slide.active {
    opacity: 1;
    transform: translateX(0);
}

.carousel-slide.prev {
    transform: translateX(-100%);
}

.carousel-slide .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
    animation: slideInLeft 0.8s ease-out;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: slideInLeft 0.8s ease-out 0.2s both;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    animation: slideInLeft 0.8s ease-out 0.4s both;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
}

/* 轮播区域的按钮样式（白色背景） */
.carousel-slide .btn-primary {
    background: #fff;
    color: #2563eb;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.carousel-slide .btn-primary:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: #fff;
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.2);
}

.carousel-slide .btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
}

.carousel-slide .btn-secondary:hover {
    background: #fff;
    color: #2563eb;
    border-color: #fff;
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.3);
}

/* 普通页面的按钮样式（适应主题） */
.btn-primary {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* CTA区域的按钮样式（蓝色背景） */
.cta .btn-primary {
    background: #fff;
    color: var(--primary-color);
    border-color: #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.cta .btn-primary:hover {
    background: transparent;
    color: #fff;
    border-color: #fff;
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.3);
}

/* 按钮修饰类 */
.btn-full-width {
    width: 100%;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: slideInRight 0.8s ease-out 0.3s both;
}

.server-icon {
    width: 200px;
    height: 200px;
    background: rgba(255,255,255,0.1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    animation: float 3s ease-in-out infinite;
}

/* 轮播控制按钮 */
.carousel-controls {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 2rem;
    pointer-events: none;
}

.carousel-btn {
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.4);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    pointer-events: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.carousel-btn:hover {
    background: rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.7);
    transform: scale(1.1);
}

/* 轮播指示器 */
.carousel-indicators {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
    background: rgba(0, 0, 0, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.6);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: white;
    border-color: white;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.indicator:hover {
    background: rgba(255, 255, 255, 0.8);
    border-color: white;
}

/* 动画效果 */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* 服务区域 */
.services {
    padding: 80px 0 60px 0;
    background: var(--section-bg);
}

.services h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--shadow);
    text-align: center;
    transition: transform 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.service-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: border-color 0.3s ease;
}

.service-link:hover {
    border-bottom-color: var(--primary-color);
}

/* 特色区域 */
.features {
    padding: 50px 0;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-color);
}

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

.feature-item {
    text-align: center;
    padding: 2rem;
}

.feature-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.feature-item p {
    color: var(--text-secondary);
}

/* CTA区域 */
.cta {
    background: var(--primary-color);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.cta h2 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* 页脚 */
.footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding: 40px 0 20px;
}

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

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

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #2563eb;
}

/* 社交媒体图标 */
.social-media {
    display: flex;
    gap: 0.8rem;
    margin-top: 1rem;
}

.social-media a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--card-bg);
    border: 2px solid rgba(37, 99, 235, 0.2);
    border-radius: 8px;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-media a:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.social-icon {
    font-size: 1.1rem;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.social-media a:hover .social-icon {
    color: white;
    transform: scale(1.1);
}

/* 特定社交媒体平台颜色 */
.social-media a.linkedin:hover {
    background: #0077b5;
    border-color: #0077b5;
}

.social-media a.twitter:hover {
    background: #1da1f2;
    border-color: #1da1f2;
}

.social-media a.facebook:hover {
    background: #1877f2;
    border-color: #1877f2;
}

.social-media a.whatsapp:hover {
    background: #25d366;
    border-color: #25d366;
}

/* 新闻页面样式 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.news-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.news-card.featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    align-items: center;
}

.news-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.news-card.featured .news-image {
    height: 300px;
}

.news-icon {
    font-size: 3rem;
    opacity: 0.9;
}

.news-content {
    padding: 1.5rem;
}

.news-card.featured .news-content {
    padding: 2rem;
}

.news-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.news-date {
    color: var(--text-secondary);
}

.news-category {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.news-card h2,
.news-card h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.news-card.featured h2 {
    font-size: 1.8rem;
}

.news-card h3 {
    font-size: 1.3rem;
}

.news-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.insight-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.insight-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.insight-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* 文章详情页样式 */
.article-container {
    padding: 2rem 0;
}

.article-container .container {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 3rem;
    align-items: start;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.article-header {
    margin-bottom: 2rem;
}

.breadcrumb {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.article-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    flex-wrap: wrap;
}

.article-date,
.article-author {
    color: var(--text-secondary);
}

.article-category {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
}

.article-container h1 {
    font-size: 2.5rem;
    color: var(--text-color);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.article-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 2rem;
}

.article-image {
    text-align: center;
    margin: 2rem 0;
    padding: 3rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 12px;
}

.article-hero-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.image-caption {
    color: white;
    font-style: italic;
    margin: 0;
}

.article-body {
    line-height: 1.7;
    color: var(--text-color);
}

.lead-paragraph {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 2rem;
    padding-left: 1rem;
    border-left: 4px solid var(--primary-color);
}

.article-body h2 {
    color: var(--text-color);
    margin: 2rem 0 1rem 0;
    font-size: 1.5rem;
}

.article-list {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.article-list li {
    margin-bottom: 0.5rem;
}

.article-quote {
    background: var(--card-bg);
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    border-radius: 0 8px 8px 0;
}

.article-quote cite {
    display: block;
    margin-top: 1rem;
    font-style: normal;
    font-weight: 600;
    color: var(--primary-color);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.spec-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.spec-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.timeline {
    margin: 2rem 0;
}

.timeline-item {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.timeline-date {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.9rem;
}

.timeline-content h4 {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.article-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.article-tags {
    margin-bottom: 2rem;
}

.tag {
    display: inline-block;
    background: var(--card-bg);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    margin: 0.25rem 0.5rem 0.25rem 0;
    border: 1px solid var(--border-color);
}

.article-share h4 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

.share-buttons {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.share-btn {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.share-btn.linkedin {
    background: #0077b5;
    color: white;
}

.share-btn.twitter {
    background: #1da1f2;
    color: white;
}

.share-btn.facebook {
    background: #1877f2;
    color: white;
}

.share-btn.email {
    background: var(--text-secondary);
    color: white;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* 侧边栏样式 */
.article-sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-section {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

.sidebar-section h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.related-item {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.related-item h4 {
    margin-bottom: 0.5rem;
}

.related-item a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.95rem;
}

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

.related-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .news-card.featured {
        grid-template-columns: 1fr;
    }
    
    .news-card.featured .news-image {
        height: 200px;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .insights-grid {
        grid-template-columns: 1fr;
    }
    
    .article-container .container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .article-container h1 {
        font-size: 2rem;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .share-buttons {
        flex-direction: column;
    }
    
    .article-sidebar {
        position: static;
    }
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    color: #9ca3af;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .logo h2 {
        font-size: 1.4rem;
    }
    
    .logo-img {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .hamburger {
        display: flex;
    }
    
    .theme-toggle {
        margin-left: 0.5rem;
    }
    
    .theme-btn {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .nav-menu {
        display: none;
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--header-bg);
        flex-direction: column;
        padding: 2rem;
        box-shadow: 0 4px 20px var(--shadow);
        border-radius: 0;
        gap: 1rem;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu > li {
        width: 100%;
    }
    
    .nav-menu > li > a {
        width: 100%;
        text-align: center;
        padding: 16px 20px;
        background: var(--section-bg);
        border: 2px solid transparent;
    }
    
    .nav-menu > li > a:hover {
        background: var(--primary-color);
        border-color: #1d4ed8;
    }
    
    .dropdown-content {
        position: static;
        display: block;
        box-shadow: none;
        background: var(--section-bg);
        margin-top: 8px;
        border: none;
        padding: 0;
    }
    
    .dropdown-content a {
        padding: 12px 20px;
        margin: 4px 0;
        background: var(--border-color);
    }
    
    .dropdown-content a:hover {
        background: var(--primary-color);
        transform: none;
    }
    
    .carousel-slide .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-content h1 {
        font-size: 2.2rem;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .carousel-controls {
        padding: 0 1rem;
    }
    
    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .server-icon {
        width: 150px;
        height: 150px;
        font-size: 3rem;
    }
    
    .carousel-indicators {
        bottom: 1rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* 页面特定样式 */
.page-header {
    background: var(--section-bg);
    padding: 100px 0 40px;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.page-content {
    padding: 40px 0;
}

.content-section {
    margin-bottom: 2rem;
}

.content-section h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.content-section h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.content-section p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.content-section ul {
    color: var(--text-secondary);
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.content-section ul li {
    margin-bottom: 0.5rem;
}

.price-table {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 1.5rem 0;
}

.price-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.price-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.price-card.featured {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.price-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.price {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.price-card ul {
    list-style: none;
    margin: 0;
    text-align: left;
}

.price-card ul li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--section-bg);
    padding: 2rem;
    border-radius: 12px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: var(--card-bg);
    color: var(--text-color);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    height: 120px;
    resize: vertical;
}

/* Mission & Vision 样式 */
.mission-vision-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin: 2rem 0;
}

.mission-vision-card {
    background: var(--section-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.mission-vision-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow);
}

.mission-vision-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.mission-vision-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Industry Recognition 样式 */
.recognition-card {
    background: var(--section-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.recognition-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--shadow);
}

.recognition-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    list-style: none;
    margin: 0;
}

.certifications-grid li {
    color: var(--text-secondary);
    padding: 0.5rem 0;
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .mission-vision-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .certifications-grid {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
}

/* 联系页面样式 */
.contact-info-card {
    background: var(--section-bg);
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

.contact-info-item {
    margin-bottom: 1.5rem;
}

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

.contact-info-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.contact-info-item p {
    color: var(--text-secondary);
    margin: 0.2rem 0;
}

.office-info-card {
    background: var(--section-bg);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.office-info-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.office-info-card > p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.map-placeholder {
    background: var(--border-color);
    height: 300px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    margin: 1rem 0;
}

.location-details {
    margin-top: 1rem;
}

.location-details p {
    color: var(--text-secondary);
}

.location-details strong {
    color: var(--text-color);
}

/* 多列特性列表样式 */
.feature-list-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 0.5rem 2rem;
    color: var(--text-secondary);
    margin-left: 0;
    margin-bottom: 1rem;
    list-style: none;
}

.feature-list-columns li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    line-height: 1.5;
}

.feature-list-columns li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.1rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .feature-list-columns {
        grid-template-columns: 1fr;
        gap: 0.3rem;
    }
}