/* ===== 微信数字员工 — 官网样式 ===== */
:root{
  --brand:#12b3a8;
  --brand-2:#0e9188;
  --brand-deep:#0b6f6a;
  --brand-soft:#e8f8f6;
  --brand-soft-2:#f2fbfa;
  --ink:#0e1b22;
  --ink-2:#1c2f38;
  --muted:#63798a;
  --line:#e4eced;
  --bg:#ffffff;
  --bg-soft:#f6fafa;
  --shadow-sm:0 1px 2px rgba(14,27,34,.05);
  --shadow:0 8px 24px rgba(14,27,34,.07);
  --shadow-lg:0 22px 60px rgba(10,80,76,.16);
  --radius:18px;
  --container:1160px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.3;margin:0;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:12px;border:1px solid transparent;
  font-weight:600;font-size:15px;line-height:1;
  padding:14px 22px;cursor:pointer;transition:.22s ease;
  white-space:nowrap;
}
.btn .ico{width:18px;height:18px;flex:none}
.btn-primary{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);
  color:#fff;box-shadow:0 8px 20px rgba(18,179,168,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(18,179,168,.36)}
.btn-ghost{
  background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-sm);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-2);transform:translateY(-2px)}
.btn-lg{padding:16px 28px;font-size:16px;border-radius:14px}
.btn-sm{padding:10px 16px;font-size:14px;border-radius:10px}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:.25s ease;
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 4px 20px rgba(14,27,34,.05)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;flex:none}
.brand-logo{width:34px;height:34px;border-radius:9px;box-shadow:0 4px 12px rgba(18,179,168,.28)}
.nav{display:flex;gap:4px;margin-left:8px;flex:1}
.nav a{
  padding:8px 14px;border-radius:9px;font-size:14.5px;color:var(--muted);font-weight:500;transition:.2s;
}
.nav a:hover{color:var(--brand-2);background:var(--brand-soft-2)}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px;cursor:pointer}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.2s}

/* ===== 首屏 ===== */
.hero{position:relative;overflow:hidden;padding:76px 0 60px;text-align:center}
.hero-glow{
  position:absolute;inset:-30% -10% auto -10%;height:640px;pointer-events:none;
  background:
    radial-gradient(52% 58% at 50% 40%,rgba(18,179,168,.16) 0%,rgba(18,179,168,0) 70%),
    radial-gradient(38% 42% at 18% 30%,rgba(18,179,168,.10) 0%,rgba(18,179,168,0) 70%),
    radial-gradient(38% 42% at 84% 26%,rgba(120,220,210,.14) 0%,rgba(120,220,210,0) 70%);
}
.hero-glow::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(14,27,34,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(14,27,34,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(60% 60% at 50% 38%,#000 0%,transparent 75%);
  -webkit-mask-image:radial-gradient(60% 60% at 50% 38%,#000 0%,transparent 75%);
}
.hero-inner{position:relative}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);
  color:var(--brand-2);font-size:13.5px;font-weight:600;
  padding:8px 16px;border-radius:999px;box-shadow:var(--shadow-sm);
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(18,179,168,.16)}
.hero-title{font-size:52px;font-weight:800;margin:26px 0 0;letter-spacing:-.02em}
.hero-sub{
  max-width:800px;margin:20px auto 0;color:var(--muted);font-size:17px;line-height:1.85;
}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:32px}
.hero-note{margin-top:18px;color:#8a9aa7;font-size:13.5px}

/* 数据条 */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:0;margin-top:56px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
}
.stat{padding:26px 18px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat-num{font-size:30px;font-weight:800;color:var(--brand-2);letter-spacing:-.02em;line-height:1.2}
.stat-label{margin-top:4px;color:var(--muted);font-size:14px}

/* ===== 通用区块 ===== */
.section{padding:92px 0}
.section-soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{text-align:center;max-width:840px;margin:0 auto 48px}
.eyebrow{
  display:inline-block;background:var(--brand-soft);color:var(--brand-2);
  font-size:13px;font-weight:700;letter-spacing:.04em;
  padding:6px 14px;border-radius:999px;
}
.section-head h2{font-size:36px;font-weight:800;margin-top:16px}
.section-sub{margin-top:14px;color:var(--muted);font-size:16px}

/* ===== 核心能力卡片 ===== */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;box-shadow:var(--shadow-sm);transition:.25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfeceb}
.card-icon{
  width:46px;height:46px;border-radius:13px;
  background:var(--brand-soft);color:var(--brand-2);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.card-icon svg{width:24px;height:24px}
.card h3{font-size:19px;font-weight:700}
.card p{margin-top:10px;color:var(--muted);font-size:14.5px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tags li{
  background:var(--brand-soft-2);border:1px solid #d9f0ee;color:var(--brand-deep);
  font-size:12.5px;font-weight:600;padding:5px 11px;border-radius:8px;
}

/* ===== 自动加好友 ===== */
.af-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.af-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 20px;
  box-shadow:var(--shadow-sm);transition:.22s ease;
}
.af-item:hover{border-color:#cfeceb;box-shadow:var(--shadow);transform:translateY(-3px)}
.af-item h4{font-size:16px;font-weight:700;display:flex;align-items:center;gap:8px}
.af-item h4::before{
  content:"";width:8px;height:8px;border-radius:3px;flex:none;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
}
.af-item p{margin-top:9px;color:var(--muted);font-size:14px;line-height:1.7}
.af-more{
  margin-top:26px;background:#fff;border:1px dashed #c7e8e5;border-radius:14px;
  padding:22px 26px;color:var(--ink-2);font-size:15px;
}
.af-more::before{
  content:"通过申请也全自动";display:block;font-weight:700;color:var(--brand-2);
  font-size:14px;margin-bottom:6px;
}

/* ===== 功能清单（折叠） ===== */
.flist{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.fgroup{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-sm);overflow:hidden;transition:.22s ease;
}
.fgroup[open]{border-color:#cfeceb;box-shadow:var(--shadow)}
.fgroup summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:12px;
  padding:18px 20px;font-weight:700;font-size:16px;
}
.fgroup summary::-webkit-details-marker{display:none}
.fgroup summary .fcount{
  font-size:12px;font-weight:700;color:var(--brand-2);
  background:var(--brand-soft);padding:3px 9px;border-radius:999px;flex:none;
}
.fgroup summary .chev{
  margin-left:auto;flex:none;width:18px;height:18px;color:#9fb2bd;transition:.25s;
}
.fgroup[open] summary .chev{transform:rotate(180deg);color:var(--brand-2)}
.fbody{padding:0 20px 8px}
.frow{padding:12px 0;border-top:1px solid #f0f5f6}
.frow strong{display:block;font-size:14.5px;font-weight:700;color:var(--ink)}
.frow span{display:block;margin-top:3px;color:var(--muted);font-size:13.5px;line-height:1.7}

/* ===== 三步上手 ===== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;box-shadow:var(--shadow-sm);transition:.25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfeceb}
.step-num{
  font-size:34px;font-weight:800;line-height:1;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.step h3{font-size:19px;font-weight:700;margin-top:14px}
.step p{margin-top:10px;color:var(--muted);font-size:14.5px}
.link-arrow{
  display:inline-block;margin-top:16px;color:var(--brand-2);font-weight:700;font-size:14.5px;
  border-bottom:1px solid rgba(18,179,168,.35);padding-bottom:2px;transition:.2s;
}
.link-arrow:hover{color:var(--brand-deep);border-bottom-color:var(--brand-deep)}

/* ===== 底部 CTA + 二维码 ===== */
.cta-band{
  padding:88px 0;
  background:
    radial-gradient(60% 100% at 12% 0%,rgba(18,179,168,.14) 0%,rgba(18,179,168,0) 60%),
    radial-gradient(50% 90% at 92% 100%,rgba(18,179,168,.12) 0%,rgba(18,179,168,0) 60%),
    #f6fafa;
  border-top:1px solid var(--line);
}
.cta-inner{display:grid;grid-template-columns:1fr 320px;gap:56px;align-items:center}
.cta-icon{
  width:50px;height:50px;border-radius:14px;background:#fff;border:1px solid var(--line);
  color:var(--brand-2);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);
}
.cta-icon svg{width:24px;height:24px}
.cta-copy h2{font-size:36px;font-weight:800;margin-top:20px}
.cta-copy > p{margin-top:14px;color:var(--muted);font-size:16px;max-width:560px}
.cta-copy .hero-actions{justify-content:flex-start;margin-top:28px}

.qr-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:22px;
  padding:20px;box-shadow:var(--shadow-lg);text-align:center;transition:.25s ease;
}
.qr-card:hover{transform:translateY(-4px);border-color:#bfe6e3}
.qr-card img{width:100%;border-radius:12px}
.qr-cap{margin-top:14px}
.qr-cap strong{display:block;font-size:16px;font-weight:700}
.qr-cap span{display:block;margin-top:3px;color:var(--muted);font-size:13px}

/* ===== 页脚 ===== */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:44px 0 36px}
.footer-inner{text-align:center}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:16px}
.footer-brand img{width:30px;height:30px;border-radius:8px}
.footer-nav{display:flex;gap:22px;justify-content:center;flex-wrap:wrap;margin-top:20px}
.footer-nav a{color:var(--muted);font-size:14px;transition:.2s}
.footer-nav a:hover{color:var(--brand-2)}
.footer-keywords{margin-top:20px;color:#9fb2bd;font-size:13.5px}
.footer-copy{margin-top:8px;color:#b3c2cb;font-size:12.5px}
.footer-note{margin-top:6px;color:#c2cfd6;font-size:12.5px}
/* 备案信息预留区：只留位置，备案号待填写（网站备案 + 公安备案各一条） */
.footer-legal{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:6px 20px;min-height:20px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:12.5px;line-height:20px;color:var(--muted);text-align:center}
.footer-legal .legal-item{display:inline-block}
.footer-legal a{color:inherit;transition:.2s}
.footer-legal a:hover{color:var(--brand-2)}

/* ===== 悬浮按钮 & 弹窗 ===== */
.fab{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);
  color:#fff;border:0;border-radius:999px;padding:13px 20px 13px 16px;
  font-size:14.5px;font-weight:700;cursor:pointer;
  box-shadow:0 12px 28px rgba(18,179,168,.36);transition:.22s ease;
}
.fab svg{width:20px;height:20px}
.fab:hover{transform:translateY(-3px);box-shadow:0 18px 36px rgba(18,179,168,.44)}

.modal{position:fixed;inset:0;z-index:90;display:none}
.modal.open{display:block}
.modal-mask{position:absolute;inset:0;background:rgba(10,26,32,.55);backdrop-filter:blur(3px)}
.modal-panel{
  position:relative;width:min(360px,calc(100vw - 40px));
  margin:8vh auto 0;background:#fff;border-radius:20px;padding:26px;
  text-align:center;box-shadow:0 30px 80px rgba(6,40,38,.35);
  animation:pop .22s ease;
}
@keyframes pop{from{opacity:0;transform:translateY(12px) scale(.97)}to{opacity:1;transform:none}}
.modal-panel img{border-radius:12px}
.modal-title{margin:14px 0 6px;font-weight:700;font-size:16px}
.modal-hint{margin:0 0 16px;color:var(--muted);font-size:12.5px;line-height:1.6}
.nav-qr{cursor:pointer}
.modal-close{
  position:absolute;top:10px;right:14px;background:none;border:0;
  font-size:26px;line-height:1;color:#9fb2bd;cursor:pointer;transition:.2s;
}
.modal-close:hover{color:var(--ink)}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .hero-title{font-size:42px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .af-grid{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:40px}
  .qr-card{max-width:320px;margin:0 auto}
}
@media (max-width:760px){
  .container{padding:0 18px}
  .header-inner{height:60px;gap:12px}
  .nav{
    position:absolute;top:60px;left:0;right:0;
    flex-direction:column;gap:2px;padding:12px 18px 18px;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 18px 30px rgba(14,27,34,.08);
    display:none;
  }
  .nav.open{display:flex}
  .nav a{padding:12px 10px;font-size:15px}
  .nav-toggle{display:flex}
  .header-actions .btn span{display:none}
  .hero{padding:52px 0 44px}
  .hero-title{font-size:31px}
  .hero-sub{font-size:15.5px}
  .stats{grid-template-columns:repeat(2,1fr);margin-top:38px}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:nth-child(odd){border-right:1px solid var(--line)}
  .stat:nth-child(3),.stat:nth-child(4){border-bottom:0}
  .stat-num{font-size:24px}
  .section{padding:64px 0}
  .section-head{margin-bottom:34px}
  .section-head h2{font-size:26px}
  .cards,.af-grid,.steps,.flist{grid-template-columns:1fr}
  .cta-band{padding:60px 0}
  .cta-copy h2{font-size:27px}
  .fab{right:16px;bottom:16px}
}