body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
}
.header {
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
}
.header .layui-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}
.header .layui-logo {
    font-size: 24px;
    font-weight: bold;
    color: #667eea;
    line-height: 70px;
}
.header .layui-nav {
    background: transparent;
    line-height: 70px;
}
.header .layui-nav-item {
    line-height: 70px;
}
.header .layui-nav-item a {
    color: #333;
    font-size: 16px;
    padding: 0 20px;
}
.header .layui-nav-item a:hover {
    color: #667eea;
}
.header .layui-nav-item.layui-this a {
    color: #667eea;
}
.mobile-menu-btn {
    display: none;
    font-size: 24px;
    cursor: pointer;
    padding: 10px;
}
@media screen and (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    .header .layui-nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    }
    .header .layui-nav.mobile-show {
        display: flex;
    }
    .header .layui-nav-item {
        line-height: 50px;
        border-bottom: 1px solid #f0f0f0;
    }
    .header .layui-nav-item a {
        padding: 0 30px;
        display: block;
    }
}
.banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}
.section {
    padding: 80px 0;
}
.section-title {
    text-align: center;
    margin-bottom: 60px;
}
.section-title h2 {
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
}
.section-title p {
    font-size: 18px;
    color: #666;
}
.feature-card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease;
}
.feature-card:hover {
    transform: translateY(-5px);
}
.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
    color: #667eea;
}
.testimonial {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 30px;
}
.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-right: 20px;
}
.pricing-card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    padding: 30px;
    text-align: center;
    position: relative;
}
.pricing-popular {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: #667eea;
    color: white;
    padding: 5px 20px;
    border-radius: 20px;
    font-size: 14px;
}
.footer {
    background: #333;
    color: white;
    padding: 60px 0 30px;
}
.footer a {
    color: #ccc;
}
.footer a:hover {
    color: white;
}
.footer-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 20px;
    color: white;
}
.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #444;
    margin-top: 30px;
    color: #ccc;
}
.service-card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease;
}
.service-card:hover {
    transform: translateY(-5px);
}
.service-icon {
    font-size: 48px;
    margin-bottom: 20px;
    color: #667eea;
}
.news-card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    overflow: hidden;
    margin-bottom: 30px;
    transition: transform 0.3s ease;
}
.news-card:hover {
    transform: translateY(-5px);
}
.news-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}
.news-content {
    padding: 20px;
}
.news-title {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
}
.news-meta {
    color: #666;
    font-size: 14px;
    margin-bottom: 15px;
}
.news-excerpt {
    color: #333;
    line-height: 1.8;
}
.case-card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    overflow: hidden;
    margin-bottom: 30px;
    transition: transform 0.3s ease;
}
.case-card:hover {
    transform: translateY(-5px);
}
.case-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}
.case-content {
    padding: 20px;
}
.case-title {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
}
.case-desc {
    color: #666;
    line-height: 1.8;
}
.about-content {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    padding: 40px;
}
.about-text {
    font-size: 18px;
    line-height: 1.8;
    color: #333;
}
.about-text p {
    margin-bottom: 20px;
}
.article-content {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    padding: 40px;
}
.article-title {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 20px;
    text-align: center;
}
.article-meta {
    text-align: center;
    color: #666;
    margin-bottom: 40px;
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
}
.article-text {
    font-size: 18px;
    line-height: 1.8;
    color: #333;
}
.article-text p {
    margin-bottom: 20px;
}