/* ============ 辽宁东骏工程项目管理有限公司 官网样式 ============ */
:root{
  --navy:#1F3A68;
  --navy-dark:#16294a;
  --accent:#C9A86A;
  --grey:#555;
  --light:#f5f7fa;
  --line:#e3e8ef;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","PingFang SC",-apple-system,sans-serif;color:#333;line-height:1.7;background:#fff}
a{text-decoration:none;color:inherit}
img{max-width:100%}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== 顶部条 ===== */
.topbar{background:var(--navy);color:#fff;font-size:13px;padding:6px 0}
.topbar .container{display:flex;justify-content:space-between;flex-wrap:wrap}
.topbar a{color:#fff}

/* ===== 导航 ===== */
header.nav{background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.06);position:sticky;top:0;z-index:100}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:78px}
.logo{display:flex;align-items:center;gap:10px}
.logo .logo-img{height:40px;width:auto;display:block}
.logo-mark{width:44px;height:44px;background:var(--navy);border-radius:6px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:20px}
.logo-text .cn{font-size:18px;font-weight:700;color:var(--navy);letter-spacing:1px}
.logo-text .en{font-size:10px;color:#999;letter-spacing:1px}
nav.menu ul{display:flex;list-style:none;gap:6px}
nav.menu a{padding:10px 16px;font-size:15px;color:#333;border-radius:4px;transition:.2s}
nav.menu a:hover,nav.menu a.active{color:var(--navy);background:var(--light)}
.nav-phone{text-align:right}
.nav-phone .label{font-size:12px;color:#999}
.nav-phone .num{font-size:20px;font-weight:800;color:var(--navy)}
.nav-phone .num small{font-size:12px;font-weight:400;color:var(--accent)}

/* ===== Hero ===== */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-dark) 100%);color:#fff;padding:110px 0;text-align:center;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(circle at 20% 30%,rgba(201,168,106,.15) 0,transparent 40%),
  radial-gradient(circle at 80% 70%,rgba(255,255,255,.08) 0,transparent 40%)}
.hero h1{font-size:42px;letter-spacing:6px;margin-bottom:18px;position:relative}
.hero .sub{font-size:18px;opacity:.9;margin-bottom:10px;position:relative}
.hero .tags{margin:26px 0 36px;position:relative}
.hero .tags span{display:inline-block;border:1px solid rgba(255,255,255,.4);padding:6px 18px;margin:0 6px;border-radius:20px;font-size:13px}
.hero .btn{display:inline-block;background:var(--accent);color:#fff;padding:14px 42px;border-radius:30px;font-size:16px;letter-spacing:2px;transition:.2s;position:relative}
.hero .btn:hover{background:#b08f52}

/* ===== 通用区块 ===== */
section{padding:70px 0}
section.alt{background:var(--light)}
.sec-head{text-align:center;margin-bottom:46px}
.sec-head .en{font-size:13px;color:var(--accent);letter-spacing:3px;text-transform:uppercase}
.sec-head h2{font-size:30px;color:var(--navy);margin:8px 0 14px}
.sec-head .line{width:50px;height:3px;background:var(--accent);margin:0 auto}
.sec-head p{color:var(--grey);max-width:760px;margin:14px auto 0}

/* ===== 业务卡片 ===== */
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.svc-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:36px 26px;text-align:center;transition:.25s}
.svc-card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(31,58,104,.12);border-color:var(--navy)}
.svc-icon{width:64px;height:64px;margin:0 auto 18px;background:var(--light);border-radius:50%;display:flex;align-items:center;justify-content:center}
.svc-icon svg{width:32px;height:32px;stroke:var(--navy)}
.svc-card h3{font-size:18px;color:var(--navy);margin-bottom:10px}
.svc-card p{font-size:13px;color:var(--grey)}

/* ===== 关于摘要 ===== */
.about-flex{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.about-visual{background:linear-gradient(135deg,var(--navy),var(--navy-dark));border-radius:10px;min-height:340px;display:flex;align-items:center;justify-content:center;color:#fff;text-align:center;padding:30px}
.about-visual .big{font-size:22px;line-height:1.8}
.about-visual .big em{color:var(--accent);font-style:normal;font-weight:700}
.about-text h3{font-size:24px;color:var(--navy);margin-bottom:16px}
.about-text p{color:var(--grey);margin-bottom:14px}
.red-slogan{color:#c0392b;font-weight:800;font-size:18px;margin:18px 0;line-height:1.6}
.btn-outline{display:inline-block;border:2px solid var(--navy);color:var(--navy);padding:10px 30px;border-radius:4px;transition:.2s}
.btn-outline:hover{background:var(--navy);color:#fff}

/* ===== 优势 ===== */
.adv-item{padding:26px}
.adv-item .num{font-size:36px;font-weight:900;color:rgba(31,58,104,.15);line-height:1}
.adv-item h4{color:var(--navy);margin:10px 0;font-size:17px}
.adv-item p{font-size:13px;color:var(--grey)}

/* ===== 案例 ===== */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case-card{border-radius:8px;overflow:hidden;background:#fff;border:1px solid var(--line);transition:.25s}
.case-card:hover{transform:translateY(-4px);box-shadow:0 10px 24px rgba(0,0,0,.1)}
.case-img{height:180px;background:linear-gradient(135deg,#3a5a8c,#1F3A68);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.85);font-size:14px;letter-spacing:2px}
.case-img.c2{background:linear-gradient(135deg,#6a7f9e,#2c4a7c)}
.case-img.c3{background:linear-gradient(135deg,#2c5f7c,#1a3a5c)}
.case-body{padding:18px}
.case-body .tag{display:inline-block;font-size:11px;color:var(--accent);border:1px solid var(--accent);padding:2px 10px;border-radius:10px;margin-bottom:8px}
.case-body h4{font-size:16px;color:var(--navy);margin-bottom:6px}
.case-body p{font-size:13px;color:var(--grey)}
.case-body .scale{margin-top:8px;font-size:13px;color:var(--navy);font-weight:700}

/* ===== CTA ===== */
.cta{background:linear-gradient(135deg,var(--navy),var(--navy-dark));color:#fff;text-align:center;padding:60px 0}
.cta h2{font-size:28px;margin-bottom:10px}
.cta .phone-big{font-size:38px;font-weight:900;color:var(--accent);margin:14px 0;letter-spacing:2px}

/* ===== 底部 ===== */
footer{background:#142644;color:#9fb0c8;padding:50px 0 20px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:30px}
.foot-grid h4{color:#fff;font-size:16px;margin-bottom:16px}
.foot-grid ul{list-style:none}
.foot-grid li{margin-bottom:8px}
.foot-grid a:hover{color:#fff}
.copyright{border-top:1px solid rgba(255,255,255,.1);padding-top:18px;text-align:center;font-size:12px;color:#7a8aa3}

/* ===== 内页 banner ===== */
.page-banner{background:linear-gradient(135deg,var(--navy),var(--navy-dark));color:#fff;padding:60px 0;text-align:center}
.page-banner h1{font-size:34px;letter-spacing:4px}
.page-banner .crumb{font-size:13px;opacity:.8;margin-top:8px}

/* ===== 服务流程 ===== */
.process-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step{background:#fff;border-left:4px solid var(--accent);padding:24px;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.step .no{font-size:14px;color:var(--accent);font-weight:700}
.step h4{color:var(--navy);margin:8px 0}
.step p{font-size:13px;color:var(--grey)}

/* ===== 列表 ===== */
.policy-list{list-style:none}
.policy-list li{padding:14px 0;border-bottom:1px dashed var(--line);display:flex;gap:10px}
.policy-list li::before{content:"✓";color:var(--accent);font-weight:700}

/* ===== 联系 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info .item{display:flex;gap:14px;margin-bottom:22px;align-items:flex-start}
.contact-info .item .ic{width:44px;height:44px;background:var(--light);border-radius:6px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.contact-info .item .ic svg{width:22px;height:22px;stroke:var(--navy)}
.contact-info .item h5{color:var(--navy);font-size:15px}
.contact-info .item p{color:var(--grey);font-size:14px}
form .row{margin-bottom:16px}
form input,form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:4px;font-size:14px;font-family:inherit}
form textarea{min-height:120px;resize:vertical}
form button{background:var(--navy);color:#fff;border:none;padding:13px 40px;border-radius:4px;cursor:pointer;font-size:15px;letter-spacing:2px}
form button:hover{background:var(--navy-dark)}

/* ===== 浮动电话 ===== */
.float-call{position:fixed;right:20px;bottom:30px;background:var(--accent);color:#fff;width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,0,0,.25);z-index:99}
.float-call svg{width:26px;height:26px;stroke:#fff}

/* ===== 响应式 ===== */
@media(max-width:900px){
  .grid4,.process-steps{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .about-flex,.contact-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  nav.menu{display:none}
  .hero h1{font-size:30px;letter-spacing:2px}
  .nav-phone .num{font-size:16px}
}
@media(max-width:600px){
  .grid4,.case-grid,.process-steps,.foot-grid{grid-template-columns:1fr}
}

.cta{
   background: url('../imgs/bottombg.png');
  background-size: cover;
  background-position: center;   
}



.hero{
  background: url('../imgs/home.jpg');
   background-size: cover;
  background-position: center;   

}
.about.page-banner{
  background: url('../imgs/about.jpg');
   background-size: cover;
  background-position: center;   
}
.cases.page-banner{
  background: url('../imgs/cases.jpg');
   background-size: cover;
  background-position: center;   

}
.contact.page-banner{
  background: url('../imgs/contact.jpg');
   background-size: cover;
  background-position: center;   
}
.process.page-banner{
  background: url('../imgs/process.jpg');
   background-size: cover;
  background-position: center;   

}
.services.page-banner{
  background: url('../imgs/services.jpg');
   background-size: cover;
  background-position: center;   
}