/* 广西凡劳建设工程有限责任公司官网样式 */
:root{
  --primary:#e8720c; --primary-dark:#c95f05; --accent:#7ab648;
  --ink:#2b2b2b; --gray:#666; --light:#f7f6f3; --white:#fff;
  --shadow:0 4px 18px rgba(0,0,0,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:var(--ink);background:var(--white);line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.container{max-width:1100px;margin:0 auto;padding:0 20px}

/* 顶部 */
.topbar{background:var(--primary-dark);color:#fff;font-size:13px;padding:5px 0}
.topbar .container{display:flex;justify-content:space-between}
header{background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.06);position:sticky;top:0;z-index:100}
.nav{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;max-width:1100px;margin:0 auto}
.nav .logo{display:flex;align-items:center;gap:12px}
.nav .logo img{height:52px}
.nav .logo .name{font-size:18px;font-weight:700;color:var(--primary-dark);letter-spacing:1px}
.nav ul{display:flex;list-style:none;gap:6px;flex-wrap:wrap}
.nav ul a{display:block;padding:10px 18px;font-size:15px;border-radius:6px;transition:.2s}
.nav ul a:hover,.nav ul a.active{background:var(--primary);color:#fff}

/* 首页横幅 */
.hero{background:linear-gradient(135deg,#e8720c 0%,#f39c3a 55%,#9dc75e 100%);color:#fff;padding:84px 20px;text-align:center}
.hero h1{font-size:38px;letter-spacing:3px;margin-bottom:14px;text-shadow:0 2px 6px rgba(0,0,0,.2)}
.hero p{font-size:17px;opacity:.95;max-width:720px;margin:0 auto 30px}
.btn{display:inline-block;background:#fff;color:var(--primary-dark);padding:12px 34px;border-radius:30px;font-size:15px;font-weight:600;box-shadow:var(--shadow);transition:.2s}
.btn:hover{transform:translateY(-2px)}

/* 区块 */
section{padding:60px 0}
.sec-title{text-align:center;font-size:27px;font-weight:700;margin-bottom:8px;color:var(--ink)}
.sec-title::after{content:"";display:block;width:52px;height:4px;background:var(--primary);margin:12px auto 0;border-radius:2px}
.sec-sub{text-align:center;color:var(--gray);font-size:14px;margin-bottom:38px}

/* 卡片 */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px}
.card{background:var(--light);border-radius:12px;padding:30px 24px;border-top:4px solid var(--primary);transition:.25s}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.card .ico{font-size:34px;margin-bottom:12px}
.card h3{font-size:17px;margin-bottom:10px;color:var(--primary-dark)}
.card p{font-size:14px;color:var(--gray)}

/* 简介 */
.about-wrap{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center}
.about-wrap p{color:#555;font-size:15px;margin-bottom:12px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:10px}
.stat{background:var(--light);border-radius:10px;text-align:center;padding:18px 8px}
.stat b{display:block;font-size:26px;color:var(--primary)}
.stat span{font-size:13px;color:var(--gray)}

/* 列表页通用 */
.page-head{background:linear-gradient(120deg,#e8720c,#9dc75e);color:#fff;text-align:center;padding:46px 20px}
.page-head h1{font-size:28px;letter-spacing:2px}
.content{padding:56px 0}
.content h2{font-size:20px;color:var(--primary-dark);margin:30px 0 14px;border-left:5px solid var(--primary);padding-left:12px}
.content p,.content li{color:#555;font-size:15px}
.content ul{padding-left:22px}
.content li{margin:6px 0}

/* 案例 */
.case{background:var(--light);border-radius:12px;overflow:hidden;margin-bottom:22px;display:flex}
.case .tag{background:var(--primary);color:#fff;writing-mode:vertical-lr;letter-spacing:4px;padding:18px 10px;font-size:14px;display:flex;align-items:center;justify-content:center}
.case .body{padding:22px 26px}
.case h3{font-size:17px;color:var(--ink);margin-bottom:8px}
.case p{font-size:14px;color:var(--gray)}

/* 联系 */
.contact-box{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:22px}
.contact-item{background:var(--light);border-radius:12px;padding:28px;text-align:center}
.contact-item .ico{font-size:30px;margin-bottom:10px}
.contact-item h3{font-size:15px;color:var(--gray);margin-bottom:6px}
.contact-item p{font-size:16px;font-weight:600;color:var(--ink)}
.notice{background:#fff7ee;border:1px solid #f5d9b8;border-radius:10px;padding:18px 22px;font-size:14px;color:#8a5a1e;margin-top:30px}

/* 页脚 */
footer{background:#33383d;color:#b8bfc6;padding:40px 0 0;font-size:14px}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px;padding-bottom:26px}
footer h4{color:#fff;font-size:16px;margin-bottom:12px}
footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid #4a5057;text-align:center;padding:14px 0;font-size:13px;color:#9aa3ab}
.footer-bottom a{color:#9aa3ab}
.footer-bottom a:hover{color:#fff}

@media(max-width:760px){
  .nav{flex-direction:column;gap:8px}
  .about-wrap{grid-template-columns:1fr}
  footer .cols{grid-template-columns:1fr}
  .hero h1{font-size:28px}
  .case{flex-direction:column}
  .case .tag{writing-mode:horizontal-tb;padding:8px}
}