*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:"Microsoft Yahei",sans-serif;color:#333;font-size:14px;line-height:1.8;background:#fff;}
a{text-decoration:none;color:#333;}
ul,li{list-style:none;}
img{max-width:100%;height:auto;}
.container{width:1200px;margin:0 auto;padding:0 15px;}
.bg-f5{background:#f5f7fa;}

/* 头部导航 */
.header{height:80px;line-height:80px;background:#fff;box-shadow:0 2px 10px #eee;position:sticky;top:0;z-index:999;}
.header .container{display:flex;justify-content:space-between;align-items:center;}
.logo{font-size:24px;font-weight:bold;color:#0F3B77;}
.nav ul{display:flex;}
.nav li{margin:0 15px;}
.nav li a{font-size:15px;color:#333;}
.nav li a.active{color:#0F3B77;font-weight:bold;}
.tel-btn{background:#0F3B77;color:#fff;padding:8px 20px;border-radius:30px;}
.tel-btn:hover{background:#2A64B8;}

/* Banner */
.banner{width:100%;height:500px;overflow:hidden;position:relative;background:#0F3B77;}
.banner-text{position:absolute;left:10%;top:50%;transform:translateY(-50%);color:#fff;}
.banner-text h1{font-size:48px;margin-bottom:20px;}
.banner-text p{font-size:18px;margin-bottom:30px;opacity:0.9;}
.btn{display:inline-block;background:#C8B686;color:#fff;padding:12px 30px;border-radius:30px;transition:all 0.3s;}
.btn:hover{background:#fff;color:#0F3B77;}

/* 标题 */
.title-head{text-align:center;margin-bottom:50px;}
.title-head h2{font-size:32px;color:#0F3B77;margin-bottom:10px;}
.title-head p{color:#666;}

/* 首页关于 */
.about-index{padding:80px 0;}
.about-index .row{display:flex;align-items:center;gap:40px;}
.about-index .col-left{width:50%;}
.about-index .col-right{width:50%;}
.about-index h2{font-size:28px;margin-bottom:20px;color:#0F3B77;}
.about-index p{color:#666;margin-bottom:20px;}
.data-box{display:flex;gap:20px;margin:25px 0;}
.data-box span{display:inline-block;padding:8px 15px;background:#f5f7fa;border-radius:4px;color:#0F3B77;font-weight:bold;}

/* 服务模块 */
.service-index{padding:80px 0;}
.service-list{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;}
.service-item{background:#fff;padding:30px;border-radius:8px;box-shadow:0 3px 15px #eee;transition:all 0.3s;}
.service-item:hover{transform:translateY(-8px);box-shadow:0 8px 25px #e2e8f0;}
.service-item h3{font-size:18px;color:#0F3B77;margin-bottom:15px;}
.service-item p{color:#666;margin-bottom:15px;}
.service-item a{color:#2A64B8;}

/* 优势模块 */
.advantage-index{padding:80px 0;}
.advantage-list{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;}
.adv-item{text-align:center;padding:30px;background:#f5f7fa;border-radius:8px;}
.adv-item h4{color:#0F3B77;margin-bottom:15px;}

/* 咨询横幅 */
.contact-banner{padding:60px 0;background:#0F3B77;color:#fff;text-align:center;}
.contact-banner h2{font-size:30px;margin-bottom:15px;}
.contact-banner p{margin-bottom:30px;opacity:0.9;}

/* 响应式适配 */
@media(max-width:768px){
    .container{width:100%;}
    .nav{display:none;}
    .service-list{grid-template-columns:1fr;}
    .advantage-list{grid-template-columns:1fr 1fr;}
    .about-index .row{flex-direction:column;}
    .about-index .col-left,.about-index .col-right{width:100%;}
    .banner-text h1{font-size:28px;}
}