@charset "utf-8";
/* 模板作者：www.adminbuy.cn */

*{margin:0;padding:0;box-sizing:border-box;font-family:"Microsoft YaHei",Arial,sans-serif;}
html{scroll-behavior:smooth;}
body{background:#f5f7fa;color:#333;overflow-x:hidden;}
ul{list-style:none;}
a{text-decoration:none;color:inherit;}

/* 导航 */
.ab_header{
    position:fixed;top:0;left:0;width:100%;
    background:#ffffff;
    box-shadow:0 2px 12px rgba(0,0,0,0.08);
    z-index:999;
}
.ab_nav{
    max-width:1240px;margin:0 auto;
    display:flex;justify-content:space-between;align-items:center;
    padding:16px 20px;
}
.ab_logo{font-size:22px;font-weight:bold;color:#1f4e96;}
.ab_logo small{font-size:14px;color:#666;font-weight:normal;margin-left:8px;}
.ab_nav_menu{display:flex;gap:26px;}
.ab_nav_menu a{color:#444;font-size:15px;transition:0.25s;}
.ab_nav_menu a:hover{color:#1f4e96;}
.ab_tel_btn{
    padding:9px 20px;background:#1f4e96;color:#fff;border-radius:4px;font-weight:bold;
}

/* Banner首屏 */
.ab_banner{
    margin-top:72px;
    background:linear-gradient(135deg,#1f4e96,#2b64c2);
    color:#fff;padding:90px 20px;text-align:center;
    position:relative;
}
.ab_banner h1{
    font-size:clamp(28px,5vw,46px);line-height:1.3;margin-bottom:18px;
}
.ab_banner_desc{
    font-size:17px;opacity:0.93;max-width:840px;margin:0 auto 30px;line-height:1.8;
}
.ab_banner_btns{
    display:flex;gap:20px;justify-content:center;flex-wrap:wrap;
}
.ab_banner_call{
    background:#fff;color:#1f4e96;padding:15px 34px;border-radius:4px;font-size:17px;font-weight:bold;
}
.ab_banner_msg{
    border:1px solid #fff;padding:15px 34px;border-radius:4px;font-size:17px;font-weight:bold;
}

/* 通用区块 */
.ab_section{
    max-width:1240px;margin:0 auto;padding:70px 20px;
}
.ab_section_title{
    text-align:center;margin-bottom:52px;
}
.ab_section_title h2{
    font-size:32px;color:#222;margin-bottom:10px;
}
.ab_section_title h2 span{color:#1f4e96;}
.ab_section_title p{color:#666;font-size:16px;}

/* 公司介绍 */
.ab_intro_wrap{
    display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
}
.ab_intro_img{
    height:320px;background:#d9e3f0;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#666;
}
.ab_intro_text p{
    line-height:1.8;color:#444;margin-bottom:16px;
}

/* 产品板块 */
.ab_product_grid{
    display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;
}
.ab_product_card{
    background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 4px 18px rgba(0,0,0,0.06);transition:0.3s;
}
.ab_product_card:hover{transform:translateY(-6px);box-shadow:0 10px 28px rgba(0,0,0,0.1);}
.ab_product_img{height:180px;background:#d9e3f0;display:flex;align-items:center;justify-content:center;color:#666;}
.ab_product_info{padding:22px;}
.ab_product_info h3{font-size:19px;color:#222;margin-bottom:10px;}
.ab_product_info p{color:#666;font-size:15px;line-height:1.7;}

/* 六大优势 */
.ab_advantage_bg{background:#edf2fa;}
.ab_adv_grid{
    display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px;
}
.ab_adv_item{
    background:#fff;padding:26px;border-radius:10px;text-align:center;box-shadow:0 2px 10px rgba(0,0,0,0.05);
}
.ab_adv_item h4{color:#1f4e96;font-size:18px;margin-bottom:8px;}
.ab_adv_item p{color:#666;font-size:14px;line-height:1.6;}

/* 经营范围 */
.ab_business_box{
    background:#fff;border-radius:10px;padding:32px;box-shadow:0 4px 18px rgba(0,0,0,0.06);
}
.ab_business_list{
    display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;
}
.ab_business_list li{
    padding:12px 0;color:#444;display:flex;align-items:center;
}
.ab_business_list li::before{
    content:"●";color:#1f4e96;margin-right:10px;
}

/* 底部 */
.ab_footer{background:#112240;color:#b4c2e0;text-align:center;padding:40px 20px;font-size:14px;}

/* 悬浮侧边客服 */
.ab_side_service{
    position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:9999;
}
.ab_service_item{
    width:54px;height:54px;background:#1f4e96;color:#fff;text-align:center;line-height:54px;margin-top:8px;border-radius:8px 0 0 8px;font-size:19px;cursor:pointer;
}
.ab_kf_pop{
    display:none;position:fixed;width:330px;background:#fff;border-radius:12px;box-shadow:0 0 30px rgba(0,0,0,0.2);z-index:10000;right:62px;top:50%;transform:translateY(-50%);
}
.ab_kf_header{background:#1f4e96;color:#fff;padding:16px;font-weight:bold;position:relative;}
.ab_kf_close{position:absolute;right:16px;cursor:pointer;font-size:22px;}
.ab_kf_body{padding:22px;color:#333;}
.ab_kf_line{padding:12px 0;border-bottom:1px solid #eee;}
.ab_kf_btn{display:block;text-align:center;background:#1f4e96;color:#fff;padding:12px;border-radius:8px;margin-top:14px;font-weight:bold;}

/* 移动端适配 */
@media (max-width:768px){
    .ab_nav_menu{display:none;}
    .ab_section{padding:50px 16px;}
    .ab_intro_wrap{grid-template-columns:1fr;}
    .ab_product_grid{grid-template-columns:1fr 1fr;gap:16px;}
    .ab_kf_pop{width:280px;right:54px;}
    .ab_service_item{width:46px;height:46px;line-height:46px;font-size:16px;}
}