:root{
      --bg:#f7f8fc;--bg2:#eef3ff;--card:#ffffff;--card2:#fbfcff;--line:#dce4f5;
      --text:#172033;--muted:#5d6a85;--brand:#2563eb;--brand2:#0ea5e9;--accent:#ff8a00;
      --shadow:0 18px 45px rgba(32,57,125,.10);--shadow2:0 10px 25px rgba(37,99,235,.12);
      --radius:22px;--radius2:16px;
    }
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,#f9fbff 0%,#f6f8fe 38%,#f7f8fc 100%);color:var(--text)}
    a{color:inherit;text-decoration:none}img{display:block;max-width:100%}
    .container{width:min(1180px,calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:30;background:rgba(247,248,252,.82);backdrop-filter:blur(16px);border-bottom:1px solid rgba(220,228,245,.8)}
    .nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand img{width:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;box-shadow:var(--shadow2)}
    .brand h1,.brand .site{margin:0;font-size:15px;line-height:1.2}.brand .site{font-weight:700}.brand .sub{font-size:12px;color:var(--muted);margin-top:2px}
    .menu{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .menu a{font-size:14px;color:#20304c;padding:8px 10px;border-radius:10px;transition:.2s}.menu a:hover,.menu a.active{background:#eaf1ff;color:#1141b7}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.22s;box-shadow:var(--shadow2)}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff}.btn-primary:hover{transform:translateY(-2px)}
    .btn-ghost{background:#fff;color:#17305b;border:1px solid var(--line);box-shadow:none}
    .burger{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
    .hero{padding:32px 0 18px}
    .hero-shell{position:relative;overflow:hidden;border:1px solid rgba(220,228,245,.95);border-radius:30px;background:linear-gradient(135deg,#ffffff 0%,#f3f7ff 48%,#eef6ff 100%);box-shadow:var(--shadow)}
    .hero-shell:before,.hero-shell:after{content:"";position:absolute;border-radius:999px;background:radial-gradient(circle,rgba(37,99,235,.14),rgba(37,99,235,0) 65%)}
    .hero-shell:before{width:260px;height:260px;right:-70px;top:-90px}.hero-shell:after{width:220px;height:220px;left:-70px;bottom:-90px}
    .hero-grid{position:relative;display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center;padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#eaf1ff;color:#1746bd;border:1px solid #d5e2ff;padding:8px 12px;border-radius:999px;font-size:13px;font-weight:700}
    .hero h2{margin:14px 0 12px;font-size:clamp(30px,5vw,54px);line-height:1.05;letter-spacing:-.02em}
    .hero p{margin:0;color:var(--muted);font-size:16px;line-height:1.8;max-width:58ch}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
    .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .stat{background:rgba(255,255,255,.82);border:1px solid rgba(220,228,245,.95);border-radius:18px;padding:16px;box-shadow:0 10px 28px rgba(30,49,92,.06)}
    .stat b{display:block;font-size:22px}.stat span{font-size:13px;color:var(--muted)}
    .hero-panel{display:grid;gap:14px}
    .panel-card{background:rgba(255,255,255,.86);border:1px solid rgba(220,228,245,.95);border-radius:24px;padding:18px;box-shadow:0 16px 32px rgba(30,49,92,.07)}
    .panel-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
    .chip{font-size:12px;padding:7px 10px;border-radius:999px;background:#eef4ff;color:#1c48b4}
    .mini-list{display:grid;gap:10px}.mini-item{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed #e4ebf8;font-size:14px}.mini-item:last-child{border-bottom:0}
    section{padding:18px 0 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin:18px 0 14px}
    .section-head h3{margin:0;font-size:26px}.section-head p{margin:0;color:var(--muted);max-width:62ch;line-height:1.7}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .card{background:linear-gradient(180deg,#fff 0%,#fbfcff 100%);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 8px 24px rgba(32,57,125,.06);transition:.25s}
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(32,57,125,.1)}
    .card h4{margin:0 0 10px;font-size:18px}.card p{margin:0;color:var(--muted);line-height:1.75;font-size:14px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}.tag-cloud span{padding:9px 12px;border-radius:999px;background:#eef4ff;border:1px solid #dbe6ff;color:#2043a4;font-size:13px}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:start}
    .list{display:grid;gap:10px;margin:0;padding:0;list-style:none}.list li{display:flex;gap:10px;align-items:flex-start;color:#24334f;line-height:1.7}
    .list li:before{content:"";width:10px;height:10px;border-radius:50%;margin-top:8px;background:linear-gradient(135deg,var(--brand),var(--brand2));flex:0 0 10px}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}th,td{padding:14px 16px;text-align:left;border-bottom:1px solid #edf1f8;font-size:14px;vertical-align:top}th{background:#f4f7ff;color:#1f2f50}
    .rating{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#fff3df;color:#9a5b00;font-weight:700;border:1px solid #ffd79a}
    .steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.step{position:relative}.step:before{counter-increment:step;content:counter(step);position:absolute;right:18px;top:18px;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:800}
    .step h4{padding-right:52px}
    details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 18px;box-shadow:0 8px 24px rgba(32,57,125,.05)}details+details{margin-top:12px}summary{cursor:pointer;font-weight:700;color:#172033}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";float:right;color:#2850c4;font-size:20px;line-height:1}details[open] summary:after{content:"–"}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .review{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px}
    .stars{color:#ff9a00;letter-spacing:2px;font-size:16px;margin-bottom:10px}
    .review .role{color:#2a4589;font-size:13px;font-weight:700;margin-top:12px}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .article a{color:#1946b5;font-weight:700}.article .meta{font-size:12px;color:var(--muted);margin-top:8px}
    .form-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:14px;align-items:start}
    form{display:grid;gap:12px}.field{display:grid;gap:8px}label{font-size:14px;font-weight:700;color:#23304b}input,select,textarea{width:100%;border:1px solid #d9e3f5;border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--text);outline:none}textarea{min-height:120px;resize:vertical}input:focus,select:focus,textarea:focus{border-color:#7aa7ff;box-shadow:0 0 0 4px rgba(37,99,235,.08)}
    .footer{margin-top:18px;background:#0f172a;color:#d6def5;padding:28px 0 18px}.footer a{color:#fff7d6}.footer .footer-top{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}.footer .footer-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:22px;padding:18px}.footer .small{color:#a9b6d6;font-size:13px;line-height:1.75}.footer-bottom{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-top:16px;padding-top:16px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#aeb9d6}
    .floating{position:fixed;right:16px;bottom:16px;z-index:40;display:grid;gap:10px}.float-btn{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);color:#18305d;font-weight:800}
    .customer{display:grid;grid-template-columns:150px 1fr;gap:14px;align-items:center}.customer img{border-radius:18px;border:1px solid var(--line)}
    .fade{opacity:0;transform:translateY(18px);transition:.55s ease}.fade.in{opacity:1;transform:none}
    .mobile-panel{display:none}
    .home-link{font-weight:700;color:#1746bd}
    @media (max-width: 1024px){
      .hero-grid,.split,.form-grid,.footer .footer-top{grid-template-columns:1fr}
      .grid-4,.grid-3,.reviews,.articles,.steps{grid-template-columns:repeat(2,1fr)}
      .hero-stats{grid-template-columns:1fr}
      .menu{display:none}.burger{display:inline-flex}.mobile-panel{display:none;padding:0 0 14px}.mobile-panel.open{display:block}.mobile-panel a{display:block;padding:12px 0;border-top:1px solid #e8eef9;color:#22314c}
    }
    @media (max-width: 640px){
      .container{width:min(100% - 20px,1180px)}
      .nav{padding:12px 0}.hero{padding-top:18px}.hero-shell{border-radius:24px}.hero-grid{padding:20px}
      .grid-4,.grid-3,.reviews,.articles,.steps,.grid-2{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}.customer{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column;align-items:flex-start}
    }