*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}


body{
    font-family:"Microsoft YaHei",Arial,sans-serif;
    background:#f5f7fb;
    color:#222;
}


a{
    text-decoration:none;
    color:inherit;
}


img{
    max-width:100%;
    display:block;
}



/* ===== 顶部 ===== */


header{

    width:100%;
    height:78px;

    background:
    linear-gradient(90deg,#04152f,#0b3d75);

    display:flex;

    align-items:center;

    justify-content:space-between;

    padding:0 4%;

}



.logo{

    color:#fff;

    font-size:22px;

    font-weight:800;

}



nav{

    display:flex;

    align-items:center;

    gap:16px;

}



nav a{

    color:#fff;

    font-size:14px;

}



nav a:hover{

    color:#f5c76a;

}



.kefu{

    background:
    linear-gradient(135deg,#d6a33c,#f8d77b);

    color:#222!important;

    padding:11px 25px;

    border-radius:30px;

    font-weight:bold;

}



/* ===== Banner ===== */


.hero{


    min-height:560px;


    background:

    linear-gradient(
    90deg,
    rgba(3,15,40,.88),
    rgba(3,15,40,.35)
    ),

    url("images/banner.jpg");



    background-size:cover;

    background-position:center;

    background-repeat:no-repeat;



    display:flex;

    align-items:center;

    padding:80px 6%;

}



.hero-content{

    max-width:650px;

    color:#fff;

}



.hero h1{

    font-size:52px;

    font-weight:900;

}



.hero h2{

    margin-top:15px;

    font-size:32px;

    color:#f5c76a;

}



.hero p{

    margin-top:25px;

    font-size:18px;

    line-height:2;

}



.btn{

    display:inline-block;

    margin-top:35px;

    padding:15px 40px;

    background:#d6a33c;

    color:#fff;

    border-radius:35px;

    font-weight:bold;

}



/* ===== 核心服务 ===== */


.core{

    width:92%;

    margin:70px auto;

    text-align:center;

}



.core h2,
.office h2,
.faq h2{

    font-size:36px;

    color:#06224d;

}



.grid{

    margin-top:40px;

    display:grid;

    grid-template-columns:repeat(5,1fr);

    gap:25px;

}



.grid div{


    background:#fff;

    padding:35px 15px;

    border-radius:18px;

    font-size:18px;

    font-weight:bold;

    color:#06224d;


    box-shadow:

    0 10px 30px rgba(0,0,0,.08);


}



.grid div p{


    margin-top:12px;

    font-size:14px;

    line-height:1.7;

    color:#666;

    font-weight:normal;

}



.grid div:hover{

    background:#06224d;

    color:#fff;

}



.grid div:hover p{

    color:#fff;

}



/* ===== 图片展示 ===== */


.office{

    text-align:center;

}



.office-box{

    width:92%;

    margin:50px auto;

    display:grid;

    grid-template-columns:repeat(5,1fr);

    gap:20px;

}



.office-box img{

    height:220px;

    width:100%;

    object-fit:cover;

    border-radius:18px;

}



/* ===== FAQ ===== */


.faq{

    width:92%;

    margin:70px auto;

}



.faq h3{

    margin-top:25px;

    color:#06224d;

}



.faq p{

    margin-top:10px;

    line-height:1.8;

    color:#666;

}



/* ===== 底部 ===== */


footer{


    margin-top:60px;

    padding:45px 8%;


    background:#04152f;


    color:#fff;


    text-align:center;


    line-height:2;


}



footer h2{

    font-size:26px;

    margin-bottom:20px;

}



footer p{

    max-width:900px;

    margin:12px auto;

    font-size:15px;

    color:#dbe5f5;

}



/* ===== 悬浮客服 ===== */


.float{

    position:fixed;

    right:25px;

    bottom:30px;


    background:

    linear-gradient(135deg,#d6a33c,#f8d77b);


    color:#222;


    padding:16px 32px;


    border-radius:40px;


    font-weight:bold;


    z-index:99;

}




/* ===== 手机 ===== */


@media(max-width:768px){


header{

    height:auto;

    display:block;

    padding:18px;

    text-align:center;

}


.logo{

    font-size:20px;

    margin-bottom:15px;

}



nav{

    overflow-x:auto;

}



.hero{

    min-height:420px;

    padding:60px 25px;

}



.hero h1{

    font-size:32px;

}


.hero h2{

    font-size:24px;

}



.grid{

    grid-template-columns:repeat(2,1fr);

    gap:15px;

}


.grid div{

    padding:25px 10px;

    font-size:15px;

}



.grid div p{

    font-size:13px;

}



.office-box{

    grid-template-columns:repeat(2,1fr);

}



.office-box img{

    height:140px;

}



footer{

    padding:35px 20px;

}


.float{

    right:15px;

    bottom:20px;

    padding:14px 25px;

}


}