/* ============================================================
   企业官网 CMS - 前台样式
   ============================================================ */
:root{
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --dark:#0f172a;
  --gray:#64748b;
  --light:#f1f5f9;
  --border:#e2e8f0;
  --radius:12px;
  --shadow:0 4px 20px rgba(15,23,42,.06);
  --shadow-lg:0 12px 40px rgba(15,23,42,.12);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--dark);line-height:1.7;font-size:16px;background:#fff}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- 顶部条 ---------- */
.topbar{background:var(--dark);color:#cbd5e1;font-size:13px;padding:7px 0}
.topbar .container{display:flex;justify-content:space-between;align-items:center}
.topbar a:hover{color:#fff}
.topbar .tb-right a{margin-left:18px}

/* ---------- 导航 ---------- */
.navbar{background:#fff;position:sticky;top:0;z-index:900;box-shadow:0 1px 0 var(--border)}
.navbar .container{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-size:clamp(15px,2vw,19px);font-weight:700;color:var(--dark);display:flex;align-items:center;gap:10px;min-width:0}
.logo img{height:44px;width:44px;border-radius:50%;object-fit:cover;flex-shrink:0}
.logo span{display:flex;flex-direction:column;line-height:1.25;white-space:nowrap;overflow:hidden}
.logo small{font-size:11px;color:var(--gray);font-weight:400}
.nav-menu{display:flex;gap:6px;align-items:center}
.nav-menu a{padding:8px 14px;border-radius:8px;font-size:15px;color:#334155;transition:.2s}
.nav-menu a:hover,.nav-menu a.active{color:var(--primary);background:#eff6ff}
.nav-cta{margin-left:10px;background:var(--primary);color:#fff!important;padding:9px 18px;border-radius:8px}
.nav-cta:hover{background:var(--primary-dark)}
.nav-toggle{display:none;background:none;border:0;font-size:26px;cursor:pointer;color:var(--dark)}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(135deg,#0f172a 0%,#1e3a8a 60%,#2563eb 100%);color:#fff;padding:clamp(56px,9vw,110px) 0;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:480px;height:480px;background:radial-gradient(circle,rgba(255,255,255,.12),transparent 70%);border-radius:50%}
.hero .badge{display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);padding:6px 16px;border-radius:999px;font-size:clamp(12px,1.4vw,14px);margin-bottom:22px}
.hero h1{font-size:clamp(27px,4.6vw,44px);line-height:1.3;margin-bottom:18px;max-width:720px;font-weight:700}
.hero p{font-size:clamp(15px,1.8vw,18px);color:#dbe4f0;max-width:640px;margin-bottom:34px}
.btn{display:inline-block;padding:13px 30px;border-radius:10px;font-size:16px;font-weight:600;transition:.2s;cursor:pointer;border:0}
.btn-primary{background:#fff;color:var(--primary-dark)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.25)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5);margin-left:14px}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-blue{background:var(--primary);color:#fff}
.btn-blue:hover{background:var(--primary-dark)}

/* ---------- 通用版块 ---------- */
.section{padding:84px 0}
.section.alt{background:var(--light)}
.sec-label{color:var(--primary);font-weight:600;font-size:14px;letter-spacing:2px;text-transform:uppercase;margin-bottom:10px}
.sec-title{font-size:clamp(24px,3vw,32px);font-weight:700;margin-bottom:14px}
.sec-desc{color:var(--gray);max-width:680px;margin-bottom:44px}

/* ---------- 优势条 ---------- */
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feature{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;transition:.25s}
.feature:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.feature .icon{width:46px;height:46px;border-radius:10px;background:#eff6ff;color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px}
.feature h3{font-size:17px;margin-bottom:8px}
.feature p{font-size:14px;color:var(--gray)}

/* ---------- Agent 流程（左文右图） ---------- */
.agent-wrap{display:grid;grid-template-columns:1fr 1.3fr;gap:60px;align-items:center}
.agent-steps{position:relative;margin:32px 0 26px}
.agent-steps::before{content:"";position:absolute;left:7px;top:10px;bottom:10px;width:2px;background:var(--border)}
.agent-step{position:relative;padding:0 0 26px 34px}
.agent-step:last-child{padding-bottom:0}
.agent-step::before{content:"";position:absolute;left:0;top:5px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--primary)}
.agent-step h3{font-size:17px;margin-bottom:2px}
.agent-step span{font-size:11px;color:var(--primary);letter-spacing:1.5px;font-weight:600}
.agent-step p{font-size:14px;color:var(--gray);margin-top:6px}
.agent-link{color:var(--primary);font-weight:600;font-size:15px}
.agent-link:hover{text-decoration:underline}
.agent-figure img{width:100%;border-radius:16px;box-shadow:var(--shadow-lg);display:block}
.agent-figure p{text-align:center;font-size:13px;color:var(--gray);margin-top:14px}

/* ---------- 服务卡片 ---------- */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.svc-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.svc-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.svc-card .thumb{aspect-ratio:16/9;overflow:hidden;background:#e2e8f0}
.svc-card .thumb img{width:100%;height:100%;object-fit:cover;transition:.4s}
.svc-card:hover .thumb img{transform:scale(1.05)}
.svc-body{padding:24px;flex:1;display:flex;flex-direction:column}
.svc-tag{font-size:12px;color:var(--primary);background:#eff6ff;padding:3px 10px;border-radius:999px;display:inline-block;width:fit-content;margin-bottom:12px}
.svc-body h3{font-size:19px;margin-bottom:10px}
.svc-body p{font-size:14px;color:var(--gray);flex:1}
.svc-link{color:var(--primary);font-size:14px;font-weight:600;margin-top:16px}
.svc-link:hover{color:var(--primary-dark)}

/* ---------- 套餐 ---------- */
.packages{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.pkg{background:#fff;border:1px solid var(--border);border-radius:16px;padding:34px 30px;display:flex;flex-direction:column;position:relative;transition:.25s}
.pkg:hover{box-shadow:var(--shadow-lg)}
.pkg.recommend{border:2px solid var(--primary);box-shadow:var(--shadow-lg)}
.pkg .pkg-tag{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--primary);color:#fff;font-size:13px;padding:4px 16px;border-radius:999px}
.pkg h3{font-size:21px;margin-bottom:8px}
.pkg .suitable{font-size:13px;color:var(--gray);margin-bottom:18px;min-height:40px}
.pkg .price{font-size:30px;font-weight:800;color:var(--primary);margin-bottom:4px}
.pkg .price-note{font-size:13px;color:var(--gray);margin-bottom:20px}
.pkg .specs{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;border-top:1px dashed var(--border);border-bottom:1px dashed var(--border);padding:16px 0;margin-bottom:18px}
.pkg .specs div{text-align:center}
.pkg .specs b{display:block;font-size:15px}
.pkg .specs span{font-size:12px;color:var(--gray)}
.pkg ul{flex:1;margin-bottom:20px}
.pkg ul li{font-size:14px;color:#334155;padding:6px 0 6px 24px;position:relative}
.pkg ul li::before{content:"✓";color:#16a34a;font-weight:700;position:absolute;left:0}
.pkg .badges{margin-bottom:20px}
.pkg .badges span{font-size:12px;background:var(--light);color:var(--gray);padding:3px 10px;border-radius:999px;margin:0 6px 6px 0;display:inline-block}
.pkg .btn{text-align:center}

/* ---------- 团队/技术员 ---------- */
.team{display:grid;grid-template-columns:1fr 1.2fr;gap:50px;align-items:center}
.team .photo{border-radius:16px;overflow:hidden;box-shadow:var(--shadow-lg)}
.team .contact-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.team .c-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:18px;font-size:14px}
.team .c-card b{display:block;font-size:18px;color:var(--primary);margin-bottom:4px}

/* ---------- 案例墙 ---------- */
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{border-radius:var(--radius);overflow:hidden;position:relative;aspect-ratio:4/3;background:#e2e8f0;display:block}
.case-card img{width:100%;height:100%;object-fit:cover;transition:.4s}
.case-card:hover img{transform:scale(1.06)}
.case-card .overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(15,23,42,.85),transparent 60%);display:flex;flex-direction:column;justify-content:flex-end;padding:22px;color:#fff}
.case-card .overlay .cat{font-size:12px;background:rgba(255,255,255,.2);padding:2px 10px;border-radius:999px;width:fit-content;margin-bottom:8px}
.case-card .overlay h3{font-size:18px}
.case-card .overlay p{font-size:13px;color:#cbd5e1}

/* ---------- 新闻列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.25s;display:block}
.news-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.news-card .thumb{aspect-ratio:16/9;background:#e2e8f0;overflow:hidden}
.news-card .thumb img{width:100%;height:100%;object-fit:cover}
.news-card .body{padding:20px 22px}
.news-card .meta{font-size:12px;color:var(--gray);margin-bottom:8px}
.news-card .meta .cat{color:var(--primary);background:#eff6ff;padding:2px 8px;border-radius:4px;margin-right:8px}
.news-card h3{font-size:16px;line-height:1.5}
.news-card p{font-size:13px;color:var(--gray);margin-top:8px}

/* 新闻列表页 */
.news-list{display:flex;flex-direction:column;gap:18px}
.news-item{display:grid;grid-template-columns:220px 1fr;gap:24px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.2s}
.news-item:hover{box-shadow:var(--shadow)}
.news-item .thumb{background:#e2e8f0;min-height:150px}
.news-item .thumb img{width:100%;height:100%;object-fit:cover}
.news-item .body{padding:22px 24px 22px 0}
.news-item h3{font-size:18px;margin-bottom:8px}
.news-item h3 a:hover{color:var(--primary)}
.news-item p{font-size:14px;color:var(--gray);margin-bottom:10px}
.news-item .meta{font-size:13px;color:var(--gray)}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);margin-bottom:14px;overflow:hidden}
.faq-q{padding:20px 24px;font-size:16px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;user-select:none}
.faq-q::after{content:"+";font-size:22px;color:var(--primary);transition:.2s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;color:var(--gray);font-size:14px}
.faq-a .inner{padding:0 24px 20px}

/* ---------- 表单获客 ---------- */
.lead-section{background:linear-gradient(135deg,#1e3a8a,#2563eb);color:#fff}
.lead-wrap{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.lead-wrap h2{font-size:30px;margin-bottom:14px}
.lead-wrap p{color:#dbe4f0;margin-bottom:20px}
.lead-form{background:#fff;border-radius:16px;padding:32px;color:var(--dark);box-shadow:var(--shadow-lg)}
.lead-form h3{font-size:20px;margin-bottom:18px}
.form-row{margin-bottom:14px}
.form-row label{display:block;font-size:13px;color:#334155;margin-bottom:6px}
.form-row input,.form-row textarea,.form-row select{width:100%;padding:11px 13px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:inherit;transition:.2s}
.form-row input:focus,.form-row textarea:focus{outline:0;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.form-2col{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-msg{border-radius:8px;padding:12px 16px;font-size:14px;margin-bottom:16px}
.form-msg.ok{background:#f0fdf4;color:#15803d;border:1px solid #bbf7d0}
.form-msg.err{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}
.hp-field{position:absolute;left:-9999px;opacity:0;height:0}

/* ---------- 页头（内页横幅）---------- */
.page-banner{background:linear-gradient(135deg,#0f172a,#1e3a8a);color:#fff;padding:64px 0}
.page-banner h1{font-size:34px;margin-bottom:10px}
.page-banner p{color:#cbd5e1;max-width:640px}
.breadcrumb{font-size:13px;color:#94a3b8;margin-bottom:14px}
.breadcrumb a:hover{color:#fff}

/* ---------- 富文本内容 ---------- */
.richtext{font-size:16px;line-height:1.9;color:#334155}
.richtext h2,.richtext h3{margin:26px 0 12px;color:var(--dark)}
.richtext p{margin-bottom:14px}
.richtext ul{padding-left:22px;list-style:disc;margin-bottom:14px}
.richtext img{border-radius:var(--radius);margin:14px 0}

/* ---------- 分页 ---------- */
.pagination{display:flex;gap:8px;justify-content:center;margin-top:44px}
.pagination a,.pagination span{padding:8px 14px;border:1px solid var(--border);border-radius:8px;font-size:14px;background:#fff}
.pagination .cur{background:var(--primary);color:#fff;border-color:var(--primary)}
.pagination a:hover{border-color:var(--primary);color:var(--primary)}

/* ---------- 页脚 ---------- */
.footer{background:var(--dark);color:#94a3b8;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer a{display:block;font-size:14px;padding:5px 0}
.footer a:hover{color:#fff}
.footer .desc{font-size:14px;line-height:1.8}
.footer .qr{width:110px;height:110px;background:#fff;border-radius:8px;padding:6px}
.footer .qr img{width:100%;height:100%}
.footer-bottom{border-top:1px solid #1e293b;padding:18px 0;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.footer-bottom a{display:inline}
.footer-links{border-top:1px solid #1e293b;padding:16px 0 4px;font-size:13px;display:flex;flex-wrap:wrap;gap:4px 14px;align-items:center}
.footer-links .fl-label{color:#64748b}
.footer-links a{display:inline;padding:0;color:#94a3b8}
.footer-links a:hover{color:#fff}

/* ---------- 悬浮窗 ---------- */
.float-bar{position:fixed;right:18px;bottom:90px;z-index:950;display:flex;flex-direction:column;gap:10px}
.float-item{width:52px;height:52px;border-radius:12px;background:#fff;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:11px;color:var(--dark);cursor:pointer;border:1px solid var(--border);transition:.2s;position:relative}
.float-item:hover{background:var(--primary);color:#fff}
.float-item .fi{font-size:20px;line-height:1}
.float-wechat-qr{display:none;position:absolute;right:64px;top:50%;transform:translateY(-50%);background:#fff;padding:12px;border-radius:12px;box-shadow:var(--shadow-lg);border:1px solid var(--border);width:160px;text-align:center}
.float-wechat-qr img{width:136px;height:136px}
.float-wechat-qr p{font-size:12px;color:var(--gray);margin-top:6px}
.float-item:hover .float-wechat-qr{display:block}
#backTop{opacity:0;pointer-events:none;transition:.3s}
#backTop.show{opacity:1;pointer-events:auto}

/* ---------- 响应式 ---------- */
/* 平板及以下：网格降列，导航折叠为汉堡菜单 */
@media (max-width:992px){
  .features,.services-grid,.packages,.cases-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
  .team,.lead-wrap,.agent-wrap{grid-template-columns:1fr;gap:34px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .navbar .container{height:62px}
  .logo img{height:40px;width:40px}
  .nav-menu{display:none;position:absolute;top:62px;left:0;right:0;background:#fff;flex-direction:column;padding:14px;box-shadow:var(--shadow-lg);align-items:stretch}
  .nav-menu.open{display:flex}
  .nav-menu a{padding:12px 14px}
  .nav-cta{margin:6px 0 0;text-align:center}
  .nav-toggle{display:block}
}
/* 手机 */
@media (max-width:640px){
  .features,.services-grid,.packages,.cases-grid,.news-grid,.form-2col{grid-template-columns:1fr}
  .section{padding:56px 0}
  .news-item{grid-template-columns:1fr}
  .news-item .body{padding:0 20px 20px}
  .pkg .specs{grid-template-columns:1fr 1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  .float-bar{right:10px;bottom:70px}
  .logo img{height:38px;width:38px}
  .topbar .container{justify-content:center}
  .topbar .tb-right{display:none}
}
/* 小屏手机 */
@media (max-width:480px){
  .navbar .container{height:58px}
  .logo{font-size:15px;gap:8px}
  .logo img{height:34px;width:34px}
  .logo small{display:none}
  .nav-menu{top:58px}
  .btn{padding:12px 22px;font-size:15px}
  .hero .btn{display:block;width:100%;margin:0 0 12px;text-align:center}
  .agent-figure p{font-size:12px}
}