/* =========================================================
   AIERP 企业智能数字化运营资源管理产品 - 官网样式
   企业数字化运营主题 | Digital Enterprise Ops Theme
   ========================================================= */
:root{
  --bg:#f4f7f4;
  --bg-2:#ffffff;
  --panel:#ffffff;
  --panel-2:#eef5f0;
  --line:#dfe9e2;
  --line-2:#c2d7c9;
  --text:#12352a;
  --muted:#5f7d6f;
  --primary:#0d9488;
  --primary-2:#14b8a6;
  --accent:#f59e0b;
  --gold:#d4a13a;
  --violet:#7c3aed;
  --grad:linear-gradient(135deg,#0d9488 0%,#14b8a6 100%);
  --grad-2:linear-gradient(135deg,#14b8a6 0%,#34d399 100%);
  --radius:16px;
  --shadow:0 10px 40px rgba(13,148,136,.10);
  --font:"Segoe UI",-apple-system,BlinkMacSystemFont,"Microsoft YaHei",sans-serif;
  --mono:"JetBrains Mono","Consolas",monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--primary);text-decoration:none;transition:.2s}
img{max-width:100%;display:block}
ul{list-style:none}
.container{width:min(1200px,92%);margin:0 auto}
.section-pad{padding:96px 0}

/* ---------- Background ---------- */
.bg{position:fixed;inset:0;z-index:-2;background:var(--bg)}
.bg::before{content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 15% 10%,rgba(13,148,136,.10),transparent 40%),
  radial-gradient(circle at 85% 90%,rgba(245,158,11,.08),transparent 40%)}

/* ---------- Navbar ---------- */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);height:70px}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:12px;color:var(--text)}
.logo-mark{width:38px;height:38px;border-radius:100px;background:var(--grad);display:grid;place-items:center;
  color:#fff;font-weight:800;font-size:16px;box-shadow:0 6px 18px rgba(13,148,136,.35);font-family:var(--mono)}
.logo b{font-size:17px;letter-spacing:.5px}
.logo small{display:block;font-size:11px;color:var(--muted);font-weight:400;letter-spacing:1px}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{color:var(--muted);font-size:14px;font-weight:500}
.nav-links a:hover,.nav-links a.active{color:var(--primary)}
.nav-links a.active{font-weight:600}
.btn-nav{background:var(--grad);color:#fff!important;padding:9px 20px;border-radius:8px;font-weight:600}
.nav-toggle{display:none;background:none;border:1px solid var(--line);color:var(--text);font-size:22px;
  width:42px;height:42px;border-radius:8px;cursor:pointer}

/* ---------- Hero ---------- */
.hero{position:relative;padding:110px 0 96px;overflow:hidden}
.hero .container{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:8px;background:rgba(13,148,136,.08);border:1px solid rgba(13,148,136,.22);
  color:var(--primary);padding:6px 16px;border-radius:100px;font-size:13px;font-weight:600;margin-bottom:22px}
.badge .dot{width:8px;height:8px;border-radius:50%;background:var(--gold);box-shadow:0 0 12px var(--gold);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.hero h1{font-size:clamp(32px,5vw,52px);line-height:1.15;font-weight:800;letter-spacing:-1px;margin-bottom:22px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--muted);font-size:17px;max-width:540px;margin-bottom:32px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 30px;border-radius:10px;font-weight:600;font-size:15px;cursor:pointer;border:none}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 26px rgba(13,148,136,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(13,148,136,.45)}
.btn-ghost{background:#fff;color:var(--text);border:1px solid var(--line-2)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.hero-stats{display:flex;gap:36px;margin-top:40px}
.hero-stats .num{font-size:28px;font-weight:800;color:var(--text);font-family:var(--mono)}
.hero-stats .num span{color:var(--primary)}
.hero-stats .lab{font-size:13px;color:var(--muted)}

/* Hero visual (business flow / erp board) */
.erp-board{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:0 24px 60px rgba(13,148,136,.12)}
.erp-head{display:flex;align-items:center;gap:8px;padding:14px 18px;background:var(--panel-2);border-bottom:1px solid var(--line)}
.erp-head i{width:12px;height:12px;border-radius:50%}
.erp-head i:nth-child(1){background:#ff5f57}
.erp-head i:nth-child(2){background:#febc2e}
.erp-head i:nth-child(3){background:#28c840}
.erp-body{padding:20px}
.flow{display:flex;align-items:center;justify-content:space-between;gap:6px;margin-bottom:16px}
.flow-node{flex:1;text-align:center;background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:12px 4px}
.flow-node .ic{font-size:22px;color:var(--primary);margin-bottom:4px}
.flow-node .lab{font-size:11px;color:var(--muted)}
.flow-arrow{color:var(--line-2);font-size:18px;flex-shrink:0}
.kpi{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.kpi-card{background:var(--panel-2);border-radius:12px;padding:14px}
.kpi-card .lab{font-size:11px;color:var(--muted)}
.kpi-card .val{font-size:20px;font-weight:800;font-family:var(--mono);color:var(--primary)}
.kpi-card .val.g{color:var(--gold)}
.kpi-card .val.v{color:var(--violet)}
.kpi-card .val.up{color:#0d9488}

/* ---------- Section headers ---------- */
.sec-head{text-align:center;max-width:720px;margin:0 auto 60px}
.sec-eyebrow{color:var(--primary);font-size:13px;font-weight:700;letter-spacing:3px;text-transform:uppercase;margin-bottom:12px;display:inline-flex;align-items:center;gap:10px}
.sec-eyebrow::before,.sec-eyebrow::after{content:"";width:28px;height:2px;background:var(--grad);opacity:.5}
.sec-head h2{font-size:clamp(26px,4vw,40px);font-weight:800;margin-bottom:16px;letter-spacing:-.5px}
.sec-head p{color:var(--muted);font-size:16px}

/* ---------- Product grid ---------- */
.products-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.prod-card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;transition:.3s;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 4px 20px rgba(13,148,136,.05)}
.prod-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);opacity:0;transition:.3s}
.prod-card:hover{transform:translateY(-6px);border-color:var(--line-2);box-shadow:var(--shadow)}
.prod-card:hover::before{opacity:1}
.prod-icon{width:52px;height:52px;border-radius:12px;background:var(--grad-2);display:grid;place-items:center;
  color:#0b2a24;font-size:24px;margin-bottom:18px;box-shadow:0 6px 16px rgba(20,184,166,.3)}
.prod-card h3{font-size:16px;margin-bottom:6px;line-height:1.4}
.prod-card .en{font-size:12px;color:var(--primary);font-family:var(--mono);letter-spacing:1px;margin-bottom:10px}
.prod-card p{color:var(--muted);font-size:14px;flex:1;margin-bottom:16px}
.prod-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:14px}
.prod-link:hover{gap:10px}

/* ---------- Features / why ---------- */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.why-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:.3s;box-shadow:0 4px 20px rgba(13,148,136,.05)}
.why-card:hover{border-color:var(--line-2);transform:translateY(-4px)}
.why-card .ic{font-size:30px;margin-bottom:16px;color:var(--primary)}
.why-card h3{font-size:18px;margin-bottom:10px}
.why-card p{color:var(--muted);font-size:14.5px}

/* ---------- Architecture ---------- */
.arch{background:var(--bg-2);border-block:1px solid var(--line)}
.arch-layers{display:flex;flex-direction:column;gap:16px;max-width:880px;margin:0 auto}
.arch-row{display:flex;align-items:center;gap:16px;background:var(--panel);border:1px solid var(--line);
  border-radius:12px;padding:16px 22px}
.arch-tag{min-width:140px;font-family:var(--mono);font-size:13px;color:var(--primary);font-weight:700}
.arch-items{display:flex;flex-wrap:wrap;gap:8px}
.arch-items span{background:var(--panel-2);border:1px solid var(--line);border-radius:6px;padding:4px 12px;font-size:13px}

/* ---------- CTA ---------- */
.cta{position:relative;overflow:hidden;text-align:center;padding:90px 0}
.cta .container{position:relative;z-index:1}
.cta h2{font-size:clamp(28px,4vw,44px);font-weight:800;margin-bottom:16px}
.cta p{color:var(--muted);font-size:17px;max-width:600px;margin:0 auto 34px}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 100%,rgba(13,148,136,.12),transparent 60%)}

/* ---------- Footer ---------- */
.footer{background:#0e2a24;color:#b7d3c9;padding:70px 0 30px}
.footer .logo{color:#fff}
.footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:50px}
.footer a{font-size:14px;display:block;padding:5px 0;color:#b7d3c9}
.footer a:hover{color:#fff}
.footer .about{font-size:14px;margin-top:16px;line-height:1.9;color:#8fb3a6}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;text-align:center;font-size:13px;color:#8fb3a6}

/* ---------- Product detail page ---------- */
.crumbs{padding:26px 0 0;font-size:13px;color:var(--muted)}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--primary)}
.pd-hero{padding:40px 0 56px;border-bottom:1px solid var(--line)}
.pd-hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.pd-title{font-size:clamp(28px,4vw,44px);font-weight:800;margin:14px 0 14px;letter-spacing:-.5px}
.pd-en{font-family:var(--mono);color:var(--primary);font-size:14px;letter-spacing:2px}
.pd-desc{color:var(--muted);font-size:16px;margin-bottom:24px}
.pd-hero-img{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;
  display:grid;place-items:center;min-height:300px;box-shadow:var(--shadow)}
.pd-hero-img .ph{font-size:90px;color:var(--primary)}
.pd-sec{padding:70px 0;border-bottom:1px solid var(--line)}
.pd-sec h2{font-size:28px;font-weight:800;margin-bottom:28px;display:flex;align-items:center;gap:12px}
.pd-sec h2 .num{color:var(--primary);font-family:var(--mono);font-size:20px}
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.spec-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:22px}
.spec-card h4{font-size:16px;margin-bottom:10px;color:var(--primary)}
.spec-card p{color:var(--muted);font-size:14px}
.point-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.point-list li{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:16px 18px;font-size:14.5px;color:var(--text)}
.point-list li b{color:var(--primary);margin-right:6px}
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.value-card{text-align:center;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px 18px}
.value-card .ic{font-size:32px;margin-bottom:12px;color:var(--primary)}
.value-card h4{font-size:16px;margin-bottom:8px}
.value-card p{color:var(--muted);font-size:13.5px}
.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.scenario-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:22px}
.scenario-card h4{font-size:16px;margin-bottom:8px;display:flex;align-items:center;gap:8px;color:var(--primary)}
.scenario-card p{color:var(--muted);font-size:14px}
.related{padding:56px 0 70px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.related-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px;transition:.3s}
.related-card:hover{transform:translateY(-4px);border-color:var(--line-2)}
.related-card h4{font-size:15px;margin-bottom:6px}
.related-card p{color:var(--muted);font-size:13px}

/* ---------- Responsive ---------- */
@media(max-width:1024px){
  .products-grid{grid-template-columns:repeat(3,1fr)}
  .why-grid,.value-grid{grid-template-columns:repeat(2,1fr)}
  .spec-grid,.point-list,.scenario-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .nav-links{position:fixed;top:70px;left:0;right:0;background:#fff;flex-direction:column;gap:0;
    padding:0;border-bottom:1px solid var(--line);display:none;box-shadow:0 20px 40px rgba(0,0,0,.08)}
  .nav-links.open{display:flex}
  .nav-links a{padding:16px 24px;width:100%;border-bottom:1px solid var(--line)}
  .nav-toggle{display:block}
  .hero{padding:70px 0 60px}
  .hero .container,.pd-hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-stats{flex-wrap:wrap;gap:24px}
  .flow{flex-wrap:wrap}
  .products-grid,.why-grid,.value-grid,.related-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
}
@media(max-width:480px){
  .products-grid,.why-grid,.value-grid,.related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}