:root{
  --brand:#0E9C95; --brand-d:#0A6E69; --brand-l:#E3F5F3;
  --accent:#FF7A45; --accent-d:#E85F2C;
  --ink:#102A33; --muted:#5B7178; --line:#E3EDED;
  --bg:#F5F9F9; --card:#fff; --radius:18px;
  --shadow:0 10px 30px rgba(16,42,51,.06);
  --maxw:1160px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--brand-d);
  background:var(--brand-l);padding:5px 12px;border-radius:999px;letter-spacing:.5px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:12px;font-weight:600;font-size:15px;cursor:pointer;border:none;transition:.2s;text-align:center;justify-content:center}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-d)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-d)}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-d)}
h1{font-size:46px;line-height:1.15;font-weight:800;letter-spacing:-.5px}
h2{font-size:30px;font-weight:800;letter-spacing:-.3px}
h3{font-size:18px;font-weight:700}
.muted{color:var(--muted)}
.center{text-align:center}

/* proto banner (remove on production) */
.proto-banner{background:#102A33;color:#cfe8e6;font-size:12.5px;text-align:center;padding:7px 12px;letter-spacing:.3px}
.proto-banner b{color:#7fe3da}

/* nav */
nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);
  background:rgba(255,255,255,.82);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px}
.logo .mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand-d));
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:15px}
.nav-links{display:flex;gap:26px;font-size:14.5px;font-weight:500}
.nav-links a:hover{color:var(--brand-d)}
.nav-links a.active{color:var(--brand-d);font-weight:700}
.nav-cta{display:flex;gap:10px;align-items:center}

/* hero */
.hero{background:radial-gradient(1200px 500px at 80% -10%,#E3F5F3 0%,transparent 60%),var(--bg);
  padding:74px 0 64px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero p.lead{font-size:18px;color:var(--muted);margin:20px 0 28px;max-width:520px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.tag{font-size:13px;color:var(--brand-d);background:#fff;border:1px solid var(--brand-l);padding:6px 12px;border-radius:999px}

/* AI assistant mock */
.ai-card{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);overflow:hidden}
.ai-head{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line);background:#FBFEFE;font-weight:700}
.ai-dot{width:9px;height:9px;border-radius:50%;background:#22C55E}
.ai-body{padding:16px;display:flex;flex-direction:column;gap:12px}
.bubble{padding:10px 14px;border-radius:14px;font-size:13.5px;max-width:88%}
.b-r{background:var(--brand-l);align-self:flex-end;border-bottom-right-radius:4px}
.b-l{background:#F1F5F5;align-self:flex-start;border-bottom-left-radius:4px}
.ai-input{margin-top:6px;display:flex;gap:8px;align-items:center;border:1px solid var(--line);border-radius:12px;padding:9px 12px;color:var(--muted);font-size:13px}

/* stat strip */
.stats{display:flex;flex-wrap:wrap;justify-content:center;gap:18px;margin:40px auto 8px;max-width:100%}
.stat{flex:1 1 220px;max-width:260px;min-width:180px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;text-align:center;
  display:flex;flex-direction:column;justify-content:center;align-items:center;min-height:110px}
.stat b{display:block;font-size:30px;color:var(--brand-d);font-weight:800}
.stat span{font-size:13px;color:var(--muted)}

/* section */
section.block{padding:68px 0}
.sec-head{margin-bottom:34px;max-width:680px}
.sec-head.center{margin-left:auto;margin-right:auto}
.sec-head p{color:var(--muted);margin-top:10px;font-size:16px}

/* bento */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
.cell{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:.2s}
.cell:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(16,42,51,.1)}
.cell .ic{width:42px;height:42px;border-radius:12px;background:var(--brand-l);color:var(--brand-d);
  display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;margin-bottom:14px}
.cell h3{font-size:17px;margin-bottom:8px}
.cell p{font-size:14px;color:var(--muted)}
.c1{grid-column:span 4}.c2{grid-column:span 2}.c3{grid-column:span 2}
.c4{grid-column:span 2}.c5{grid-column:span 2}.c6{grid-column:span 3}.c7{grid-column:span 3}
.cell.feature{background:linear-gradient(135deg,#0E9C95,#0A6E69);color:#fff;border:none}
.cell.feature .ic{background:rgba(255,255,255,.18);color:#fff}
.cell.feature p{color:rgba(255,255,255,.85)}

/* pillars */
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pillar{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;transition:.2s}
.pillar:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.pillar .num{font-size:13px;font-weight:700;color:var(--accent)}
.pillar h3{margin:8px 0 6px;font-size:16px}
.pillar p{font-size:13.5px;color:var(--muted)}

/* GEO band */
.geo-band{background:linear-gradient(120deg,#102A33,#0A6E69);color:#fff;border-radius:24px;padding:46px;
  display:grid;grid-template-columns:1.3fr .7fr;gap:30px;align-items:center}
.geo-band h2{color:#fff}
.geo-band p{color:rgba(255,255,255,.82);margin:14px 0 0}

/* cards row */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.rc{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);transition:.2s}
.rc:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(16,42,51,.1)}
.rc .thumb{height:140px;background:linear-gradient(135deg,#E3F5F3,#d3ece9);display:flex;align-items:center;justify-content:center;color:var(--brand-d);font-size:13px;font-weight:600}
.rc .body{padding:16px}
.rc .k{font-size:12px;color:var(--brand-d);font-weight:600}
.rc h3{font-size:15.5px;margin:6px 0 8px}
.rc p{font-size:13px;color:var(--muted)}

/* generic page hero */
.page-hero{background:radial-gradient(900px 400px at 85% -20%,#E3F5F3 0%,transparent 60%),var(--bg);padding:54px 0 40px}
.page-hero h1{font-size:38px}
.page-hero p{color:var(--muted);margin-top:14px;max-width:620px;font-size:16px}

/* feature list / steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:10px}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}
.step .n{width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:12px}
.step h3{font-size:16px;margin-bottom:6px}
.step p{font-size:13.5px;color:var(--muted)}

/* two-col text */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:8px}
.team{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px}
.team .role{font-size:12px;color:var(--accent);font-weight:700}
.team h3{font-size:15px;margin:4px 0 6px}
.team p{font-size:12.5px;color:var(--muted)}

/* form */
.form-grid{display:grid;gap:16px;max-width:560px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13.5px;font-weight:600}
.field input,.field textarea{font:inherit;padding:11px 13px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand)}
.form-result{margin-top:14px;padding:14px 16px;border-radius:12px;font-size:14px;line-height:1.6;white-space:pre-wrap;word-break:break-word}
.form-result.ok{background:rgba(14,156,149,.10);border:1px solid var(--brand);color:#0a6f6a}
.form-result.err{background:rgba(255,122,69,.10);border:1px solid var(--accent);color:#b5481f}

/* footer */
footer{background:#102A33;color:#BFD6D4;padding:54px 0 30px;margin-top:30px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px}
footer h4{color:#fff;font-size:15px;margin-bottom:14px}
footer a{display:block;font-size:13.5px;color:#BFD6D4;padding:4px 0}
footer a:hover{color:#7fe3da}
.beian{margin-top:16px;padding-top:14px;border-top:1px solid rgba(255,255,255,.12);text-align:center;font-size:13px;color:#8FB0AE;display:flex;justify-content:center;align-items:center}
.beian a{display:inline;color:#9FE0D8}
.beian a:hover{color:#7fe3da;text-decoration:underline}
.foot-note{font-size:12px;color:#7E9A98;border-top:1px solid #1d3a41;margin-top:34px;padding-top:18px;line-height:1.7}
.contact-cta{background:#fff;color:var(--ink);border-radius:14px;padding:18px}
.contact-cta .ph{font-size:18px;font-weight:800;color:var(--brand-d)}
.placeholder{outline:1px dashed #FFB38A;outline-offset:-4px;border-radius:8px;background:rgba(255,179,138,.06)}

@media(max-width:880px){
  .hero-grid,.geo-band,.two-col{grid-template-columns:1fr}
  .bento,.pillars,.cards,.foot-grid,.stats,.steps,.team-grid{grid-template-columns:1fr}
  .c1,.c2,.c3,.c4,.c5,.c6,.c7{grid-column:span 1}
  h1{font-size:34px}.page-hero h1{font-size:30px}
  .nav-links{display:none}
}