/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei", sans-serif;
}

/* 页面容器 */
.container {
    width: 1200px;
    margin: 0 auto;
}

/* 头部导航 */
.header {
    background: #2c3e50;
    padding: 15px 0;
}
.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    color: #fff;
    font-size: 24px;
    font-weight: bold;
    text-decoration: none;
}
.nav-menu {
    display: flex;
    list-style: none;
}
.nav-menu li {
    margin-left: 30px;
}
.nav-menu a {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s;
}
.nav-menu a.active, .nav-menu a:hover {
    color: #3498db;
}

/* Banner区域 */
.banner {
    height: 400px;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 40px;
    background-image: url("../images/banner.png");
    background-size: cover;
    background-position: center;
}
.banner-text {
    color: #fff;
    text-align: center;
    text-shadow: 0 0 10px rgba(0,0,0,0.5);
}
.banner-text h1 {
    font-size: 48px;
    margin-bottom: 20px;
}
.banner-text p {
    font-size: 20px;
}

/* 内容区域通用样式 */
.content {
    padding: 20px 0;
    margin-bottom: 40px;
}
.content-title {
    font-size: 30px;
    color: #2c3e50;
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 2px solid #3498db;
    display: inline-block;
}
.content-desc {
    font-size: 16px;
    line-height: 1.8;
    color: #333;
    margin-bottom: 20px;
}
.info-card {
    background: #fff;
    border: 1px solid #e6e6e6;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.info-card h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 18px;
}
.info-list {
    list-style: none;
}
.info-list li {
    padding: 10px 0;
    border-bottom: 1px dashed #e6e6e6;
    display: flex;
}
.info-list li:last-child {
    border-bottom: none;
}
.info-list .label {
    width: 120px;
    color: #666;
    font-weight: bold;
}
.info-list .value {
    flex: 1;
    color: #333;
}

/* 产品服务样式 */
.product-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.product-item {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: transform 0.3s;
}
.product-item:hover {
    transform: translateY(-5px);
}
.product-item h4 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 18px;
}
.product-item p {
    color: #666;
    line-height: 1.6;
}

/* 联系方式样式 */
.contact-info {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}
.contact-item {
    flex: 1;
    min-width: 250px;
}

/* 底部样式 */
.footer {
    background: #2c3e50;
    color: #fff;
    padding: 30px 0;
    text-align: center;
    margin-top: 50px;
}
.footer p {
    margin-bottom: 10px;
}