* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei", sans-serif;
}
body {
    color: #333;
    line-height: 1.6;
    background: #f8f9fa;
}
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}
/* 导航 */
.header {
    background: #2c5bb5;
    color: #fff;
    padding: 18px 0;
}
.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 22px;
    font-weight: bold;
}
.nav-links a {
    color: #fff;
    margin-left: 28px;
    text-decoration: none;
    font-size: 15px;
}
.nav-links a:hover {
    opacity: 0.8;
}
/* 主体内容 */
.main {
    padding: 50px 0;
    background: #fff;
    min-height: 500px;
}
.main h1 {
    font-size: 28px;
    margin-bottom: 20px;
    color: #2c5bb5;
}
.main h2 {
    font-size: 20px;
    margin: 25px 0 12px;
}
.main p {
    margin-bottom: 15px;
    font-size: 15px;
    color: #555;
}
.service-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 20px;
}
.service-item {
    border: 1px solid #e5e7eb;
    padding: 20px;
    border-radius: 6px;
}
/* 页脚 */
.footer {
    background: #2d3748;
    color: #a0aec0;
    text-align: center;
    padding: 20px 0;
    font-size: 13px;
}
.footer a {
    color: #a0aec0;
    text-decoration: none;
    margin: 0 8px;
}