/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 */
    --primary-color: #2c5282;
    --primary-light: #4299e1;
    --primary-dark: #1a365d;
    
    /* 辅助色 */
    --secondary-color: #38a169;
    --accent-color: #ed8936;
    
    /* 中性色 */
    --bg-light: #f7fafc;
    --bg-white: #ffffff;
    --text-dark: #2d3748;
    --text-medium: #4a5568;
    --text-light: #718096;
    --border-color: #e2e8f0;
    --border-hover: #cbd5e0;
    
    /* 间距 */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.1);
    
    /* 过渡 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 布局 */
    --container-width: 1200px;
    --sidebar-width: 320px;
    --nav-height: 80px;
    
    /* 字体 */
    --font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size);
    line-height: 1.65;
    color: var(--text-dark);
    background-color: var(--bg-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* 头部样式 */
.header {
    background-color: var(--bg-white);
    color: var(--text-dark);
    padding: 0;
    height: var(--nav-height);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border-bottom: 1px solid var(--border-color);
}

.header.fixed {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    animation: slideDown 0.5s ease;
    box-shadow: var(--shadow-md);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

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

.logo img {
    height: 52px;
    transition: transform var(--transition-fast);
}

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

.nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav li {
    position: relative;
}

.nav a {
    color: var(--text-dark);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: all var(--transition-fast);
    padding: 10px 0;
    position: relative;
    display: inline-block;
}

.nav a:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
    transition: width var(--transition-normal);
}

.nav a:hover::after {
    width: 100%;
}

.nav a.active::after {
    width: 100%;
}

.mobile-menu {
    display: none;
}

.menu-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 8px;
}

.menu-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 主内容区域 */
.main {
    padding: var(--spacing-2xl) 0;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--spacing-xl);
    align-items: start;
}

/* 首页公告 */
.notice {
    background-color: #e6ffed;
    border-left: 4px solid var(--secondary-color);
    padding: 20px 0;
    margin-bottom: var(--spacing-xl);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.notice-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.notice-content h3 {
    font-size: 18px;
    color: #2f855a;
    margin-bottom: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.notice-content p {
    font-size: 16px;
    color: var(--text-medium);
    margin: 0;
    line-height: 1.6;
}

/* 首页Banner */
.banner {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: #fff;
    padding: 120px 0;
    margin-bottom: var(--spacing-2xl);
    text-align: center;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.1);
    z-index: 1;
}

.banner-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.banner h1 {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.025em;
}

.banner p {
    font-size: 22px;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
    line-height: 1.6;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.banner-contact {
    font-size: 18px;
    color: var(--contact-info-color);
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.banner-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* 气泡背景 */
.bubble-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    overflow: hidden;
}

.bubble {
    position: absolute;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    animation: bubble 20s infinite linear;
}

@keyframes bubble {
    0% {
        transform: translateY(100%) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100%) scale(1);
        opacity: 0;
    }
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 36px;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: all var(--transition-normal);
    border: none;
    cursor: pointer;
    white-space: nowrap;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
    box-shadow: 0 4px 12px rgba(44, 82, 130, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(44, 82, 130, 0.4);
}

.btn-secondary {
    background-color: var(--bg-white);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: 0 4px 12px rgba(44, 82, 130, 0.1);
}

.btn-secondary:hover {
    background-color: var(--bg-light);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(44, 82, 130, 0.2);
    border-color: var(--primary-dark);
}

.btn-accent {
    background-color: var(--accent-color);
    color: #fff;
    box-shadow: 0 4px 12px rgba(237, 137, 54, 0.3);
}

.btn-accent:hover {
    background-color: #dd6b20;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(237, 137, 54, 0.4);
}

/* 产品特性模块 */
.features {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-white);
    margin-bottom: var(--spacing-2xl);
    position: relative;
}

.features h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.features-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--text-medium);
    margin-bottom: var(--spacing-2xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.features .features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    width: 100%;
}

.feature-item {
    padding: var(--spacing-xl);
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-light);
}

.feature-icon {
    font-size: 40px;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    display: block;
}

.feature-item h3 {
    font-size: 22px;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
    font-weight: 600;
    line-height: 1.3;
}

.feature-item p {
    color: var(--text-medium);
    line-height: 1.65;
    font-size: 16px;
    margin: 0;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--primary-color);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.feature-item:hover::before {
    transform: scaleY(1);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .features h2 {
        font-size: 32px;
    }
    
    .features-subtitle {
        font-size: 16px;
        max-width: 600px;
    }
    
    .features .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .feature-item {
        padding: var(--spacing-lg);
    }
    
    .feature-icon {
        font-size: 36px;
    }
    
    .feature-item h3 {
        font-size: 20px;
    }
}

@media (max-width: 768px) {
    .features {
        padding: var(--spacing-xl) 0;
        margin-bottom: var(--spacing-xl);
    }
    
    .features h2 {
        font-size: 28px;
    }
    
    .features-subtitle {
        font-size: 15px;
        margin-bottom: var(--spacing-xl);
    }
    
    .features .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-item {
        padding: var(--spacing-md);
    }
    
    .feature-icon {
        font-size: 32px;
    }
    
    .feature-item h3 {
        font-size: 18px;
    }
    
    .feature-item p {
        font-size: 14px;
    }
}

/* 客户案例模块 */
.case-studies {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-light);
    margin-bottom: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.case-studies::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
}

.case-studies h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.case-studies-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--text-medium);
    margin-bottom: var(--spacing-2xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: var(--spacing-lg);
}

.case-item {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.case-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.case-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    position: relative;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.case-item:hover .case-image img {
    transform: scale(1.1);
}

.case-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.7));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.case-item:hover .case-image::before {
    opacity: 1;
}

.case-content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-content h3 {
    font-size: 20px;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
    font-weight: 600;
    line-height: 1.3;
}

.case-content p {
    color: var(--text-medium);
    margin-bottom: var(--spacing-md);
    line-height: 1.65;
    font-size: 16px;
    flex: 1;
}

.case-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-normal);
    font-size: 15px;
}

.case-link:hover {
    color: var(--primary-dark);
    transform: translateX(6px);
}

.case-link::after {
    content: '→';
    margin-left: 8px;
    transition: transform var(--transition-normal);
    font-weight: bold;
}

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

/* 技术支持模块 */
.support {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-white);
    margin-bottom: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.support::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-light));
}

.support h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.support-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--text-medium);
    margin-bottom: var(--spacing-2xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.support-item {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.support-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-light));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.support-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

.support-item:hover::before {
    transform: scaleX(1);
}

.support-icon {
    width: 90px;
    height: 90px;
    background-color: #ebf8ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-size: 36px;
    color: var(--primary-color);
    transition: all var(--transition-normal);
    border: 3px solid rgba(44, 82, 130, 0.1);
}

.support-item:hover .support-icon {
    background-color: var(--accent-color);
    color: white;
    transform: scale(1.1) rotate(5deg);
    border-color: var(--accent-color);
}

.support-item h3 {
    font-size: 20px;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
    font-weight: 600;
    line-height: 1.3;
}

.support-item p {
    color: var(--text-medium);
    line-height: 1.65;
    margin-bottom: var(--spacing-md);
    font-size: 16px;
}

.support-btn {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-normal);
    font-size: 15px;
    background-color: var(--bg-white);
    padding: 12px 24px;
    border-radius: var(--radius-md);
}

.contact-info {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    font-size: 18px;
    font-weight: 500;
    color: var(--contact-info-color);
    border: 1px solid var(--border-color);
}

.support-btn {
    border: 1px solid var(--primary-color);
    gap: 8px;
}

.support-btn:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 文章列表 */
.article-list {
    grid-column: 1;
}

.article-item {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.article-item:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-6px);
    border-color: var(--primary-light);
}

.article-cover {
    width: 100%;
    height: 240px;
    overflow: hidden;
    position: relative;
}

.article-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.article-item:hover .article-cover img {
    transform: scale(1.1);
}

.article-cover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 70%, rgba(0,0,0,0.6));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.article-item:hover .article-cover::before {
    opacity: 1;
}

.article-content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-title {
    font-size: 22px;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    line-height: 1.4;
}

.article-title a {
    color: var(--text-dark);
    text-decoration: none;
    transition: all var(--transition-normal);
    display: block;
}

.article-title a:hover {
    color: var(--primary-color);
    transform: translateX(4px);
}

.article-meta {
    color: var(--text-light);
    font-size: 13px;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition-fast);
}

.article-meta span:hover {
    color: var(--primary-color);
}

.article-excerpt {
    color: var(--text-medium);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
    font-size: 16px;
    flex: 1;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-normal);
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    align-self: flex-start;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    background-color: var(--bg-light);
    border: 1px solid var(--primary-color);
}

.read-more:hover {
    color: white;
    background-color: var(--primary-color);
    transform: translateX(6px);
    box-shadow: var(--shadow-md);
}

.read-more::after {
    content: '→';
    font-size: 14px;
    transition: transform var(--transition-normal);
    font-weight: bold;
}

.read-more:hover::after {
    transform: translateX(4px);
}

/* 分页 */
.pagination {
    text-align: center;
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xs);
}

.pagination a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 18px;
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-medium);
    font-size: 15px;
    font-weight: 500;
    transition: all var(--transition-normal);
    min-width: 44px;
    height: 44px;
    position: relative;
    overflow: hidden;
}

.pagination a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(44, 82, 130, 0.1), transparent);
    transition: left var(--transition-slow);
}

.pagination a:hover::before {
    left: 100%;
}

.pagination a:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.pagination .current {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.pagination .prev, .pagination .next {
    font-weight: 600;
    background-color: var(--bg-light);
}

.pagination .prev:hover, .pagination .next:hover {
    background-color: var(--primary-color);
    color: white;
}

/* 文章详情 */
.article-detail {
    flex: 1;
    min-width: 700px;
}

.article {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 40px;
    margin-bottom: 40px;
    border: 1px solid #e2e8f0;
}

.article-title {
    font-size: 28px;
    margin-bottom: 24px;
    color: #2d3748;
    font-weight: 700;
    line-height: 1.3;
}

.article-body {
    margin-top: 30px;
    line-height: 1.8;
    color: #4a5568;
}

.article-body h2 {
    font-size: 24px;
    margin: 40px 0 20px;
    color: #2d3748;
    font-weight: 600;
}

.article-body h3 {
    font-size: 20px;
    margin: 30px 0 16px;
    color: #2d3748;
    font-weight: 600;
}

.article-body p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.article-body img {
    max-width: 100%;
    height: auto;
    margin: 30px 0;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.article-tags {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid #e2e8f0;
}

.article-tags a {
    display: inline-block;
    padding: 6px 16px;
    margin-right: 12px;
    margin-bottom: 12px;
    background-color: #ebf8ff;
    border-radius: 20px;
    text-decoration: none;
    color: #3182ce;
    font-size: 13px;
    transition: all 0.3s;
    border: 1px solid #bee3f8;
}

.article-tags a:hover {
    background-color: #3182ce;
    color: #fff;
    transform: translateY(-2px);
}

/* 评论区 */
.comments-section {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 40px;
    border: 1px solid #e2e8f0;
}

.comments-section h3 {
    margin-bottom: 30px;
    color: #2d3748;
    font-size: 20px;
    font-weight: 600;
}

/* 侧边栏 */
.sidebar {
    grid-column: 2;
    position: sticky;
    top: 120px;
    align-self: start;
}

.widget {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.widget::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.widget:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--primary-light);
}

.widget:hover::before {
    transform: scaleX(1);
}

.widget h3 {
    font-size: 18px;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
    font-weight: 600;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 12px;
    position: relative;
}

.widget h3::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 80px;
    height: 2px;
    background-color: var(--primary-color);
}

.search-form {
    display: flex;
    gap: 0;
    margin-bottom: var(--spacing-md);
}

.search-form input {
    flex: 1;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    font-size: 15px;
    transition: all var(--transition-normal);
    background-color: var(--bg-light);
}

.search-form input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(44, 82, 130, 0.1);
    background-color: var(--bg-white);
}

.search-form button {
    padding: 14px 18px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-form button:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.recent-posts li {
    list-style: none;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.recent-posts li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.recent-posts li:hover {
    transform: translateX(6px);
}

.recent-posts a {
    color: var(--text-medium);
    text-decoration: none;
    transition: all var(--transition-normal);
    font-size: 15px;
    font-weight: 500;
    display: block;
    line-height: 1.4;
}

.recent-posts a:hover {
    color: var(--primary-color);
}

.post-date {
    font-size: 13px;
    color: var(--text-light);
    display: block;
    margin-top: 6px;
    transition: color var(--transition-fast);
}

.recent-posts li:hover .post-date {
    color: var(--primary-light);
}

.categories li {
    list-style: none;
    margin-bottom: var(--spacing-xs);
    transition: all var(--transition-normal);
}

.categories li:hover {
    transform: translateX(6px);
}

.categories a {
    color: var(--text-medium);
    text-decoration: none;
    transition: all var(--transition-normal);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 15px;
    padding: 8px 0;
}

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

.count {
    color: var(--text-light);
    font-size: 13px;
    background-color: var(--bg-light);
    padding: 2px 10px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.categories a:hover .count {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: var(--spacing-sm);
}

.tag-cloud a {
    color: var(--text-medium);
    text-decoration: none;
    transition: all var(--transition-normal);
    font-size: 14px;
    padding: 8px 16px;
    background-color: var(--bg-light);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.tag-cloud a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left var(--transition-slow);
}

.tag-cloud a:hover::before {
    left: 100%;
}

.tag-cloud a:hover {
    color: white;
    background-color: var(--primary-color);
    transform: translateY(-3px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.download-links li {
    list-style: none;
    margin-bottom: var(--spacing-xs);
    transition: all var(--transition-normal);
}

.download-links li:hover {
    transform: translateX(6px);
}

.download-links a {
    color: var(--text-medium);
    text-decoration: none;
    transition: all var(--transition-normal);
    display: block;
    padding: 12px 16px;
    background-color: var(--bg-light);
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 500;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.download-links a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(44, 82, 130, 0.1), transparent);
    transition: left var(--transition-slow);
}

.download-links a:hover::before {
    left: 100%;
}

.download-links a:hover {
    color: var(--primary-color);
    background-color: #ebf8ff;
    transform: translateY(-3px);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-sm);
}

/* 页面内容 */
.page-content {
    flex: 1;
    min-width: 700px;
}

.page {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 40px;
    border: 1px solid #e2e8f0;
}

.page-title {
    font-size: 28px;
    margin-bottom: 30px;
    color: #2d3748;
    font-weight: 700;
}

.page-body {
    line-height: 1.8;
    color: #4a5568;
}

.page-body h2 {
    font-size: 24px;
    margin: 40px 0 20px;
    color: #2d3748;
    font-weight: 600;
}

.page-body h3 {
    font-size: 20px;
    margin: 30px 0 16px;
    color: #2d3748;
    font-weight: 600;
}

.page-body p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.page-body img {
    max-width: 100%;
    height: auto;
    margin: 30px 0;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* 404页面 */
.error-404 {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 100px 0;
    text-align: center;
    flex: 1;
    min-width: 700px;
    border: 1px solid #e2e8f0;
}

.error-404 h1 {
    font-size: 80px;
    color: #2c5282;
    margin-bottom: 24px;
    font-weight: 700;
}

.error-404 h2 {
    font-size: 28px;
    margin-bottom: 24px;
    color: #2d3748;
    font-weight: 600;
}

.error-404 p {
    font-size: 16px;
    margin-bottom: 40px;
    color: #4a5568;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 底部样式 */
.footer {
    background-color: var(--bg-light);
    color: #000000;
    padding: var(--spacing-2xl) 0;
    margin-top: var(--spacing-2xl);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light), var(--accent-color));
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-column {
    position: relative;
}

.footer-column h3 {
    font-size: 20px;
    margin-bottom: var(--spacing-md);
    color: #ffffff;
    font-weight: 600;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-light);
    display: inline-block;
}

.footer-column p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.65;
    color: #a0aec0;
    font-size: 16px;
}

.footer-column ul {
    list-style: none;
    margin-top: var(--spacing-sm);
}

.footer-column li {
    margin-bottom: var(--spacing-xs);
    transition: all var(--transition-normal);
}

.footer-column li:hover {
    transform: translateX(6px);
}

.footer-column a {
    color: #a0aec0;
    text-decoration: none;
    transition: all var(--transition-normal);
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
}

.footer-column a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid #2d3748;
    padding-top: var(--spacing-lg);
    text-align: center;
    font-size: 15px;
    color: #a0aec0;
    position: relative;
}

.footer-bottom::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 1px;
    background-color: var(--primary-light);
}

.footer-bottom p {
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;
}

.footer-bottom a {
    color: #a0aec0;
    text-decoration: none;
    transition: all var(--transition-normal);
    position: relative;
}

.footer-bottom a:hover {
    color: var(--primary-light);
    transform: translateY(-2px);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: #2d3748;
    border-radius: 50%;
    transition: all var(--transition-normal);
    border: 1px solid #4a5568;
}

.footer-social a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px) scale(1.1);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
}

/* 响应式设计 */
@media (max-width: 1280px) {
    .container {
        max-width: 1140px;
    }
    
    .banner h1 {
        font-size: 42px;
    }
    
    .banner p {
        font-size: 20px;
    }
    
    .content-wrapper {
        grid-template-columns: 1fr 280px;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 991px) {
    .container {
        max-width: 768px;
    }
    
    .content-wrapper {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .sidebar {
        grid-column: 1;
        position: static;
        top: auto;
    }
    
    .nav {
        display: none;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .banner {
        padding: 100px 0;
    }
    
    .banner h1 {
        font-size: 36px;
    }
    
    .banner p {
        font-size: 18px;
    }
    
    .features,
    .case-studies,
    .support {
        padding: var(--spacing-xl) 0;
    }
    
    .features h2,
    .case-studies h2,
    .support h2 {
        font-size: 32px;
        margin-bottom: var(--spacing-xl);
    }
    
    .footer-content {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: var(--spacing-lg);
    }
}

@media (max-width: 767px) {
    .container {
        max-width: 100%;
        padding: 0 16px;
    }
    
    .header {
        padding: 16px 0;
    }
    
    .header.fixed {
        padding: 12px 0;
    }
    
    .logo img {
        height: 44px;
    }
    
    .main {
        padding: var(--spacing-xl) 0;
    }
    
    .banner {
        padding: 80px 0;
        margin-bottom: var(--spacing-xl);
    }
    
    .banner h1 {
        font-size: 28px;
    }
    
    .banner p {
        font-size: 16px;
        margin-bottom: var(--spacing-lg);
    }
    
    .btn {
        padding: 14px 28px;
        font-size: 15px;
    }
    
    .banner-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .features,
    .case-studies,
    .support {
        padding: var(--spacing-lg) 0;
        margin-bottom: var(--spacing-xl);
    }
    
    .features h2,
    .case-studies h2,
    .support h2 {
        font-size: 28px;
        margin-bottom: var(--spacing-lg);
    }
    
    .features-subtitle,
    .case-studies-subtitle,
    .support-subtitle {
        font-size: 16px;
        margin-bottom: var(--spacing-xl);
    }
    
    .feature-item,
    .support-item {
        padding: var(--spacing-md);
    }
    
    .feature-icon {
        width: 64px;
        height: 64px;
        font-size: 24px;
    }
    
    .support-icon {
        width: 80px;
        height: 80px;
        font-size: 32px;
    }
    
    .case-grid {
        grid-template-columns: 1fr;
    }
    
    .case-image {
        height: 200px;
    }
    
    .article-item {
        margin-bottom: var(--spacing-md);
    }
    
    .article-cover {
        height: 200px;
    }
    
    .article-content {
        padding: var(--spacing-md);
    }
    
    .article-title {
        font-size: 20px;
    }
    
    .article-meta {
        font-size: 12px;
        gap: var(--spacing-sm);
    }
    
    .article-excerpt {
        font-size: 15px;
        margin-bottom: var(--spacing-sm);
    }
    
    .article,
    .page,
    .comments-section {
        padding: var(--spacing-md);
    }
    
    .article-title,
    .page-title {
        font-size: 24px;
    }
    
    .error-404 {
        padding: 60px 0;
    }
    
    .error-404 h1 {
        font-size: 60px;
    }
    
    .error-404 h2 {
        font-size: 24px;
    }
    
    .pagination {
        flex-wrap: wrap;
        gap: 6px;
    }
    
    .pagination a {
        padding: 10px 14px;
        min-width: 40px;
        height: 40px;
        font-size: 14px;
    }
    
    .footer {
        padding: var(--spacing-xl) 0;
        margin-top: var(--spacing-xl);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .footer-bottom {
        padding-top: var(--spacing-md);
    }
    
    .footer-social {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .banner h1 {
        font-size: 24px;
    }
    
    .banner p {
        font-size: 15px;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 14px;
        width: 100%;
        max-width: 240px;
    }
    
    .features h2,
    .case-studies h2,
    .support h2 {
        font-size: 24px;
    }
    
    .feature-item h3,
    .support-item h3,
    .case-content h3 {
        font-size: 18px;
    }
    
    .feature-item p,
    .support-item p,
    .case-content p {
        font-size: 15px;
    }
    
    .article-title {
        font-size: 18px;
    }
    
    .widget {
        padding: var(--spacing-md);
    }
    
    .widget h3 {
        font-size: 16px;
    }
}

/* 功能演示样式 */
.demos {
    background-color: var(--bg-white);
    padding: var(--spacing-2xl) 0;
    margin-top: var(--spacing-xl);
}

.demos h2 {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-lg);
}

.demos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.demo-item {
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.demo-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.demo-image {
    width: 100%;
    height: 160px;
    overflow: hidden;
}

.demo-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

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

.demo-item h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin: var(--spacing-md);
}

.demo-item p {
    color: var(--text-medium);
    margin: 0 var(--spacing-md) var(--spacing-md);
    line-height: 1.6;
}

/* 产品价格样式 */
.pricing {
    background-color: var(--bg-light);
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-xl);
}

.pricing h2 {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.pricing-subtitle {
    text-align: center;
    font-size: 16px;
    color: var(--text-medium);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.pricing-single {
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.pricing-header {
    background-color: var(--primary-color);
    color: var(--bg-white);
    padding: var(--spacing-lg);
    text-align: center;
}

.pricing-header h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.price-container {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--spacing-sm);
}

.price {
    font-size: 48px;
    font-weight: 700;
}

.price-period {
    font-size: 16px;
    opacity: 0.9;
}

.pricing-features {
    padding: var(--spacing-lg);
    flex: 1;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
}

.feature-icon {
    color: var(--secondary-color);
    font-weight: bold;
    font-size: 16px;
    min-width: 18px;
}

.feature-text {
    color: var(--text-dark);
    font-size: 13px;
    line-height: 1.4;
}

.pricing-footer {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    text-align: center;
}

.pricing-footer .btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-xl);
    font-size: 15px;
    font-weight: 600;
    transition: all var(--transition-normal);
}

.pricing-footer .btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

@media (max-width: 992px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .price {
        font-size: 36px;
    }
    
    .pricing-header,
    .pricing-features,
    .pricing-footer {
        padding: var(--spacing-md);
    }
    
    .pricing h2 {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .price {
        font-size: 32px;
    }
    
    .pricing-header h3 {
        font-size: 20px;
    }
}

/* 最新动态样式 */
.articles {
    padding: var(--spacing-2xl) 0;
    margin-top: var(--spacing-xl);
}

.articles h2 {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.articles-subtitle {
    text-align: center;
    font-size: 16px;
    color: var(--text-medium);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* 联系我们样式 */
.contact {
    background-color: var(--bg-light);
    padding: var(--spacing-2xl) 0;
    margin-top: var(--spacing-xl);
}

.contact h2 {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-lg);
}

.contact-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xl);
    max-width: 800px;
    margin: 0 auto;
}

.contact-info-section {
    text-align: center;
    width: 100%;
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact-icon {
    font-size: 24px;
    min-width: 40px;
}

.contact-details h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
}

.contact-details p {
    color: var(--text-medium);
    margin: 0;
}

.contact-form-section {
    width: 100%;
    max-width: 600px;
}

.contact-form {
    display: grid;
    gap: var(--spacing-md);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: