/* 基础重置+通用样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: "Microsoft Yahei", sans-serif;
    font-size: 16px;
    color: #333;
    line-height: 1.6;
}
a {
    text-decoration: none;
    color: #1a73e8;
}
a:hover {
    color: #0d47a1;
}
ul {
    list-style: none;
}
img {
    max-width: 100%;
    height: auto;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
.header {
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}
.header .logo img {
    width: 180px;
}
.header .nav {
    margin-top: 10px;
}
.header .nav ul {
    display: flex;
    gap: 30px;
}
.header .nav a.active {
    color: #1a73e8;
    font-weight: bold;
}

/* 响应式适配 */
@media (max-width: 768px) {
    .header .nav ul {
        flex-direction: column;
        gap: 10px;
    }
    .advantage-list {
        flex-direction: column;
    }
}

/* 底部样式 */
.footer {
    margin-top: 50px;
    padding: 30px 0;
    background: #f5f5f5;
    text-align: center;
}
.footer-content {
    font-size: 14px;
    color: #666;
}
.footer-content a {
    color: #666;
    margin-left: 20px;
}