:root{
  --bg:#ffffff;
  --soft:#f5f7fb;
  --text:#1a2332;
  --muted:#5e6b7d;
  --primary:#0f2f57;
  --primary-2:#1d4e89;
  --accent:#f5a524;
  --accent-2:#e08d0e;
  --line:#e4e8f0;
  --shadow:0 10px 30px rgba(15,47,87,.10);
  --radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.65}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,92%);margin:0 auto}

/* Header */
.header{position:fixed;inset:0 0 auto 0;z-index:100;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:.25s}
.header.scrolled{box-shadow:var(--shadow)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--primary)}
.brand-mark{display:flex;align-items:center;justify-content:center;width:34px;height:34px;background:var(--primary);color:#fff;border-radius:8px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text i{font-style:normal;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:28px;font-size:15px;font-weight:500;color:#3a4656}
.nav-links a{position:relative;transition:.2s}
.nav-links a:hover{color:var(--primary-2)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--accent);transition:.25s}
.nav-links a:hover::after{width:100%}
.nav-phone{padding:8px 16px;background:var(--accent);color:#fff!important;border-radius:999px;font-weight:700}
.nav-phone::after{display:none!important}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav-toggle span{display:block;width:25px;height:2.5px;background:var(--primary);border-radius:2px;transition:.25s}

/* Hero */
.hero{position:relative;padding:130px 0 90px;background:linear-gradient(135deg,#0c2442 0%,#163a66 50%,#1d4e89 100%);color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:radial-gradient(circle at 75% 20%,rgba(245,165,36,.18),transparent 40%),radial-gradient(circle at 25% 80%,rgba(59,110,165,.25),transparent 40%)}
.hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center}
.eyebrow{display:inline-block;font-size:12px;font-weight:800;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent);background:rgba(245,165,36,.12);padding:6px 14px;border-radius:999px;margin-bottom:16px}
.hero h1{font-size:clamp(32px,5vw,52px);line-height:1.15;font-weight:800;margin:0 0 20px}
.lead{font-size:18px;color:#c9d7ec;margin:0 0 30px;max-width:560px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 28px;border-radius:999px;font-weight:700;font-size:15px;transition:.2s;border:0;cursor:pointer}
.btn-primary{background:var(--accent);color:#1a2332}
.btn-primary:hover{background:#ffb84d}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.3)}
.btn-ghost:hover{background:rgba(255,255,255,.2)}
.hero-tags{display:flex;gap:20px;flex-wrap:wrap;list-style:none;padding:0;margin:0;font-size:14px;color:#a7c1e3}
.hero-tags li{display:flex;align-items:center;gap:6px}
.hero-card{background:#fff;color:var(--text);border-radius:var(--radius);box-shadow:0 30px 60px rgba(0,0,0,.25);overflow:hidden;max-width:420px}
.hero-card-top{display:flex;align-items:center;gap:8px;padding:14px 18px;font-size:13px;font-weight:700;background:#f8fafd;color:#3a4656;border-bottom:1px solid var(--line)}
.dot{width:8px;height:8px;background:#22c55e;border-radius:50%;animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}
.hero-card-title{padding:18px 18px 8px;font-size:18px;font-weight:800;color:var(--primary)}
.hero-card-img{padding:0 30px 14px;height:170px}
.hero-card-rows{padding:0 18px 18px}
.hero-card-rows>div{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-top:1px solid var(--line);font-size:14px}
.hero-card-rows span{color:var(--muted);font-weight:500}
.hero-card-rows b{font-weight:700;color:var(--primary-2)}

/* Stats */
.stats{background:var(--primary);color:#fff;padding:56px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);text-align:center}
.stat{padding:18px 10px}
.stat b{display:block;font-size:42px;font-weight:800;line-height:1;margin-bottom:6px;color:#fff}
.stat span{font-size:14px;color:#9cc2ea}
.stat:nth-child(1),.stat:nth-child(2),.stat:nth-child(3){border-right:1px solid rgba(255,255,255,.12)}

/* Sections */
.section{padding:90px 0}
.section-soft{background:var(--soft)}
.sec-head{text-align:center;max-width:700px;margin:0 auto 52px}
.sec-head h2{font-size:32px;font-weight:800;margin:0 0 12px;color:var(--primary)}
.sec-head p{color:var(--muted);margin:0}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);transition:.25s}
.card:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(15,47,87,.14)}
.card-media{height:170px;background:var(--soft);border-radius:10px;display:flex;align-items:center;justify-content:center;position:relative;margin-bottom:18px;overflow:hidden}
.card-media svg{color:var(--primary-2)}
.card-media-tag{position:absolute;bottom:10px;left:50%;transform:translateX(-50%);font-size:11px;font-weight:700;color:var(--muted);background:rgba(255,255,255,.85);padding:4px 12px;border-radius:999px;white-space:nowrap}
.card h3{font-size:19px;font-weight:800;margin:0 0 10px;color:var(--primary)}
.card p{font-size:14px;color:var(--muted);margin:0 0 14px}
.spec{width:100%;border-collapse:collapse;font-size:13px}
.spec th,.spec td{padding:7px 0;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.spec th{width:68px;color:var(--muted);font-weight:600}
.spec td{color:var(--text);font-weight:500}
.spec tr:last-child th,.spec tr:last-child td{border-bottom:0}

/* Cases */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.case-no{font-size:13px;font-weight:800;color:var(--accent);display:block;margin-bottom:10px}
.case h3{font-size:18px;font-weight:800;margin:0 0 8px;color:var(--primary)}
.case p{font-size:14px;color:var(--muted);margin:0}

/* About */
.about{display:grid;grid-template-columns:1fr .9fr;gap:50px;align-items:start}
.about-copy h2{font-size:30px;font-weight:800;margin:0 0 18px;color:var(--primary)}
.about-copy p{color:var(--muted);margin:0 0 14px}
.about-list{display:grid;grid-template-columns:1fr 1fr;gap:10px 20px;list-style:none;padding:0;margin:20px 0 0;font-size:15px}
.about-list li{display:flex;align-items:center;gap:8px}
.about-list li::before{content:"✓";display:flex;align-items:center;justify-content:center;width:20px;height:20px;background:var(--accent);color:#1a2332;border-radius:50%;font-size:12px;font-weight:800;flex-shrink:0}
.about-side{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.license-card{grid-column:1/-1;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);text-align:center}
.license-card b{display:block;font-size:16px;font-weight:800;color:var(--primary);margin-bottom:12px}
.license-card img{width:100%;max-height:260px;object-fit:contain;border-radius:8px;border:1px solid var(--line);margin-bottom:12px}
.license-card span{font-size:12px;color:var(--muted);line-height:1.5}
.honor{background:var(--soft);border-radius:12px;padding:18px;text-align:center}
.honor b{display:block;font-size:24px;font-weight:800;color:var(--primary-2);margin-bottom:4px}
.honor span{font-size:13px;color:var(--muted)}

/* Why */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.why{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;text-align:center;box-shadow:var(--shadow)}
.why-ico{width:52px;height:52px;margin:0 auto 14px;display:flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;border-radius:50%;font-size:24px}
.why h3{font-size:17px;font-weight:800;margin:0 0 8px;color:var(--primary)}
.why p{font-size:14px;color:var(--muted);margin:0}

/* Contact */
.contact{background:linear-gradient(135deg,#f5f7fb 0%,#eef3fa 100%)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start}
.contact-info h2{font-size:30px;font-weight:800;margin:0 0 14px;color:var(--primary)}
.contact-info p{color:var(--muted);margin:0 0 24px}
.contact-list{list-style:none;padding:0;margin:0}
.contact-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--text)}
.contact-list li b{min-width:48px;color:var(--primary-2)}
.contact-form{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:700;color:var(--primary);margin-bottom:6px}
.field input,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;transition:.2s;background:#fafbfc}
.field input:focus,.field textarea:focus{outline:0;border-color:var(--primary-2);background:#fff}
.form-note{font-size:14px;margin:12px 0 0;min-height:20px}
.form-note.ok{color:#16a34a}
.form-note.err{color:#dc2626}
.form-hint{font-size:12px;color:var(--muted);margin:10px 0 0}

/* Footer */
.footer{background:var(--primary);color:#fff;padding:56px 0 0}
.footer-inner{display:flex;justify-content:space-between;align-items:center;padding-bottom:40px}
.footer-brand .brand{color:#fff;margin-bottom:8px}
.footer-brand .brand-text{font-size:16px}
.footer-brand p{font-size:14px;color:#9cc2ea;margin:0}
.footer-nav{display:flex;gap:24px;font-size:14px;color:#c9d7ec}
.footer-nav a:hover{color:#fff}
.footer-bar{border-top:1px solid rgba(255,255,255,.12);padding:20px 0}
.footer-bar .container{display:flex;justify-content:space-between;font-size:13px;color:#9cc2ea}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(26px);transition:.7s cubic-bezier(.2,.6,.2,1)}
.reveal.visible{opacity:1;transform:none}

/* Responsive */
@media (max-width:980px){
  .hero-inner{grid-template-columns:1fr;gap:34px;padding:56px 20px 64px}
  .hero-card{max-width:420px}
  .about{grid-template-columns:1fr;gap:30px}
  .contact-grid{grid-template-columns:1fr;gap:30px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .cases{grid-template-columns:repeat(2,1fr)}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid rgba(255,255,255,.12)}
}
@media (max-width:640px){
  .nav-links{position:fixed;inset:68px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;background:#fff;padding:10px 20px 20px;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:.28s;box-shadow:var(--shadow)}
  .nav-links.open{transform:none}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line)}
  .nav-links a::after{display:none}
  .nav-phone{margin-top:10px;text-align:center}
  .nav-toggle{display:flex}
  .cards,.cases,.why-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .about-list{grid-template-columns:1fr}
  .footer-inner{flex-direction:column;align-items:flex-start;gap:20px}
  .footer-bar .container{flex-direction:column;gap:6px}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}