/* ============================================================
   京师博仁主站（全新重构）设计系统 v1
   #165DFF 科技蓝 · 金 C4A256（20年品质）· 暖橙 FF7D4B（普惠温度）
   ============================================================ */
:root{
  --blue:#165DFF; --blue-hover:#0E42D2; --blue-light:#3DCCFF;
  --blue-grad:linear-gradient(135deg,#165DFF 0%,#3DCCFF 100%);
  --gold:#C4A256; --gold-light:#E3CE97; --orange:#FF7D4B; --orange-soft:#FFF1ED;
  --ink:#1D2129; --ink-2:#4E5969; --ink-3:#86909C;
  --bg:#F7F8FA; --warm:#FBF8F1; --white:#fff; --line:#E5E6EB;
  --radius:16px; --radius-sm:8px;
  --shadow:0 4px 20px rgba(0,0,0,.05);
  --shadow-hover:0 12px 36px rgba(22,93,255,.14);
  --shadow-blue:0 8px 22px rgba(22,93,255,.30);
  --maxw:1200px; --ease:cubic-bezier(.25,.1,.25,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
section[id],header[id]{scroll-margin-top:86px}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--white);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none;transition:.25s var(--ease)}
ul{list-style:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.bg-gray{background:var(--bg)}
.bg-warm{background:var(--warm)}

/* ---------- 顶部电话条 ---------- */
.topbar{background:var(--ink);color:#cdd3dc;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:36px}
.topbar a{color:#fff}

/* ---------- 主导航 ---------- */
.nav{position:sticky;top:0;z-index:100;background:#fff;box-shadow:0 2px 12px rgba(0,0,0,.06)}
.nav .container{display:flex;align-items:center;height:74px;gap:8px}
.nav .brand{display:flex;align-items:center;gap:11px}
.nav .brand img{height:48px;width:auto}
.nav .brand .bt{display:flex;flex-direction:column;line-height:1.15}
.nav .brand .bt b{font-size:19px;color:var(--ink);letter-spacing:1.5px}
.nav .brand .bt small{font-size:10px;color:var(--ink-3);letter-spacing:3px}
.nav .menu{display:flex;align-items:center;margin-left:auto;gap:2px}
.nav .menu a{color:var(--ink-2);font-size:15px;font-weight:500;padding:8px 13px;border-radius:6px;white-space:nowrap}
.nav .menu a:hover{color:var(--blue);background:#f0f5ff}
.nav .menu a.hot{background:var(--orange);color:#fff;font-weight:600}
.nav .menu a.hot:hover{background:#f06a3a;color:#fff}
.nav-toggle{display:none;font-size:26px;background:none;border:none;margin-left:auto;color:var(--ink)}

/* ---------- 首屏 ---------- */
.hero{position:relative;color:#fff;overflow:hidden;
  background:radial-gradient(circle at 78% 18%,rgba(61,204,255,.55),transparent 55%),
    linear-gradient(125deg,#0E42D2 0%,#165DFF 55%,#2E7BFF 100%);padding:96px 0 110px}
.hero::after{content:"";position:absolute;right:-120px;bottom:-160px;width:480px;height:480px;
  background:radial-gradient(circle,rgba(255,255,255,.14),transparent 70%);border-radius:50%}
.hero .hero-wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:36px;align-items:center}
.hero .inner{max-width:600px}
.hero-card .glass{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);border-radius:18px;padding:24px;backdrop-filter:blur(10px)}
.hero-card .glass h4{font-size:16px;margin-bottom:8px;letter-spacing:1px}
.hero-card .glass .li{display:flex;gap:10px;align-items:center;font-size:14px;padding:9px 0;border-bottom:1px solid rgba(255,255,255,.13)}
.hero-card .glass .li .dot{width:7px;height:7px;border-radius:50%;background:var(--gold-light);flex:none}
.hero-card .glass .price-tag{margin-top:14px;background:var(--gold);border-radius:10px;padding:10px;text-align:center;font-size:14px;letter-spacing:1px}
.hero .badge{display:inline-block;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.3);
  font-size:14px;padding:5px 16px;border-radius:20px;margin-bottom:22px}
.hero h1{font-size:52px;font-weight:800;line-height:1.18;letter-spacing:2px}
.hero .pos{font-size:20px;margin-top:16px;opacity:.95}
.hero .pos b{font-weight:700}
.hero .cta-row{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:26px;font-size:16px;font-weight:600;transition:.25s}
.btn-primary{background:#fff;color:var(--blue);box-shadow:0 8px 22px rgba(0,0,0,.18)}
.btn-primary:hover{transform:translateY(-3px)}
.btn-ghost{border:1.6px solid rgba(255,255,255,.7);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14)}
.btn-gold{background:var(--gold);color:#fff}
.btn-orange{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(255,125,75,.4)}
.btn-blue{background:var(--blue-grad);color:#fff;box-shadow:var(--shadow-blue)}
.btn-blue:hover{transform:translateY(-3px)}

/* ---------- 数据墙 ---------- */
.datawall{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);
  margin-top:-58px;position:relative;z-index:5;display:flex;flex-wrap:wrap;padding:26px 10px}
.datawall .d{flex:1;min-width:150px;text-align:center;padding:10px 6px;border-right:1px solid var(--line)}
.datawall .d:last-child{border-right:none}
.datawall .n{font-size:32px;font-weight:800;color:var(--blue);line-height:1.2}
.datawall .l{font-size:14px;color:var(--ink-3);margin-top:2px}

/* ---------- 区块标题 ---------- */
.sec-head{text-align:center;max-width:780px;margin:0 auto 52px}
.sec-tag{display:inline-block;color:var(--gold);font-size:14px;font-weight:700;letter-spacing:3px;margin-bottom:12px}
.sec-title{font-size:36px;font-weight:800;line-height:1.3}
.sec-title .grad{background:var(--blue-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sec-sub{margin-top:12px;color:var(--ink-3);font-size:16px}

/* ---------- 套餐（普惠行动）---------- */
.tier-grid{display:flex;gap:18px;flex-wrap:wrap}
.tier{flex:1;min-width:210px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 20px;transition:.28s;display:flex;flex-direction:column}
.tier:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:transparent}
.tier.featured{border:2px solid var(--blue);position:relative;box-shadow:0 10px 30px rgba(22,93,255,.12)}
.tier .ribbon{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--blue);
  color:#fff;font-size:12px;padding:2px 14px;border-radius:12px;white-space:nowrap}
.tier .k{font-size:13px;color:var(--gold);font-weight:700;letter-spacing:1px}
.tier h4{font-size:19px;margin:8px 0 2px}
.tier .desc{font-size:13px;color:var(--ink-3);min-height:40px}
.tier .price{font-size:28px;font-weight:800;color:var(--blue);margin:12px 0 2px}
.tier .mkt{font-size:12px;color:var(--ink-3)}
.tier .save{display:inline-block;background:var(--orange-soft);color:var(--orange);font-size:12px;
  padding:2px 10px;border-radius:10px;margin-top:8px}
.tier .lnk{margin-top:14px;color:var(--blue);font-size:14px;font-weight:600}
.softline{margin-top:34px;text-align:center;font-size:15px;color:var(--ink-2)}
.softline b{color:var(--blue)}

/* 两套价格提示 */
.price-note{background:var(--warm);border:1px solid var(--gold-light);border-radius:var(--radius-sm);
  padding:14px 18px;font-size:14px;color:#7a6a3e;margin-bottom:30px;text-align:center}

/* ---------- 产品 / 行业 卡片网格 ---------- */
.grid6{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:18px}
.pcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 18px;
  text-align:center;transition:.28s}
.pcard:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:transparent}
.pcard .ic{width:58px;height:58px;margin:0 auto 12px;border-radius:14px;display:flex;align-items:center;
  justify-content:center;color:var(--blue);background:linear-gradient(135deg,#eaf1ff,#f4f9ff)}
.pcard .ic svg{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.pcard h4{font-size:17px;margin-bottom:4px}
.pcard p{font-size:13px;color:var(--ink-3)}

/* ---------- 生态 ---------- */
.eco-block{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;margin-bottom:18px}
.eco-block h4{font-size:18px;color:var(--blue);margin-bottom:6px}
.eco-block .en{font-size:12px;color:var(--ink-3);letter-spacing:1px;margin-bottom:8px}
.eco-block p{font-size:14px;color:var(--ink-2)}
.eco-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}
.eco-platforms{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-top:14px}
.eco-platforms .p{background:var(--bg);border-radius:var(--radius-sm);padding:12px 14px;font-size:14px}
.eco-platforms .p b{display:block;color:var(--ink)}
.eco-platforms .p span{font-size:12px;color:var(--ink-3)}

/* ---------- 资质案例 ---------- */
.cred-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px}
.cred{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 12px;
  text-align:center;font-size:13px;color:var(--ink-2)}
.cred .ic{display:block;margin-bottom:6px;color:var(--blue)}
.cred .ic svg{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin-top:30px}
.case{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.case h4{font-size:16px;margin-bottom:6px}
.case p{font-size:13px;color:var(--ink-3)}
.partner-logos{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;justify-content:center}
.partner-logos span{background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:6px 14px;font-size:13px;color:var(--ink-2)}

/* ---------- 关于博仁 ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.about-grid p{margin-bottom:14px;color:var(--ink-2);font-size:15px}
.about-card{background:var(--blue-grad);color:#fff;border-radius:var(--radius);padding:30px;text-align:center}
.about-card .vision{font-size:24px;font-weight:800;letter-spacing:1px}
.about-card .row{display:flex;justify-content:space-around;margin-top:22px;flex-wrap:wrap;gap:10px}
.about-card .row .v b{display:block;font-size:22px}
.about-card .row .v span{font-size:12px;opacity:.9}

/* ---------- 政策/动态 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.news{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.news .date{font-size:13px;color:var(--gold);font-weight:700}
.news h4{font-size:16px;margin:6px 0}
.news p{font-size:13px;color:var(--ink-3)}

/* ---------- 留资 ---------- */
.lead{background:linear-gradient(125deg,#0E42D2,#165DFF 60%,#2E7BFF);color:#fff;border-radius:var(--radius);
  padding:40px;display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center}
.lead h3{font-size:28px;margin-bottom:8px}
.lead p{opacity:.94;font-size:15px;margin-bottom:14px}
.lead iframe{width:100%;border:0;border-radius:var(--radius-sm);background:#fff}
.lead .qr{display:flex;gap:16px;flex-wrap:wrap}
.lead .qr .q{text-align:center;font-size:13px}
.lead .qr img{width:120px;height:120px;border-radius:8px;background:#fff;padding:6px}
.lead .contact{margin-top:16px;font-size:14px;line-height:2}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink);color:#aeb6c2;padding:56px 0 26px;font-size:14px}
.footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px}
.footer h5{color:#fff;font-size:15px;margin-bottom:14px}
.footer a{color:#aeb6c2;display:block;padding:3px 0}
.footer a:hover{color:#fff}
.footer .brand img{height:52px;width:52px;object-fit:contain;background:#fff;border-radius:50%;padding:5px;margin-bottom:14px}
.footer .copy{border-top:1px solid #333a;margin-top:34px;padding-top:18px;text-align:center;font-size:13px;color:#828b99}

/* ---------- 悬浮/移动 CTA ---------- */
.float-cta{position:fixed;right:14px;bottom:96px;z-index:90;background:#fff;border-radius:12px;
  box-shadow:0 8px 26px rgba(0,0,0,.16);padding:10px;text-align:center;width:96px}
.float-cta .ic{width:44px;height:44px;margin:0 auto 4px;border-radius:50%;background:var(--orange-soft);
  display:flex;align-items:center;justify-content:center;font-size:22px}
.float-cta b{font-size:13px;color:var(--ink)}
.float-cta span{font-size:11px;color:var(--orange)}
.mobile-bar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:95;background:#fff;
  box-shadow:0 -2px 12px rgba(0,0,0,.1);padding:8px 12px;gap:8px}
.mobile-bar a{flex:1;text-align:center;padding:11px;border-radius:22px;font-size:15px;font-weight:600}

/* ---------- 滚动渐入 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:900px){
  .nav .menu{display:none;position:absolute;top:74px;left:0;right:0;background:#fff;flex-direction:column;
    align-items:stretch;padding:10px 16px 18px;box-shadow:0 12px 20px rgba(0,0,0,.1)}
  .nav .menu.open{display:flex}
  .nav .menu a{padding:12px 10px}
  .nav-toggle{display:block}
  .hero{padding:64px 0 90px}
  .hero .hero-wrap{grid-template-columns:1fr;gap:0}
  .hero-card{display:none}
  .hero h1{font-size:36px}
  .hero .pos{font-size:17px}
  .sec-title{font-size:27px}
  .datawall{margin-top:-44px}
  .about-grid,.lead{grid-template-columns:1fr}
  .footer .cols{grid-template-columns:1fr 1fr;gap:22px}
  .float-cta{display:none}
  .mobile-bar{display:flex}
  body{padding-bottom:64px}
}
@media(max-width:560px){
  .footer .cols{grid-template-columns:1fr}
  .lead{padding:26px 20px}
}

/* orphan-fix-casegrid 2026-10-01：案例5卡桌面3列(3+2)，移动端不变 */
@media (min-width:992px){.case-grid{grid-template-columns:repeat(3,1fr)!important}}