:root{
      --bg:#f6f8fc;
      --bg2:#eef4ff;
      --card:#ffffff;
      --text:#142033;
      --muted:#5c6b84;
      --line:#dce5f2;
      --brand:#246bff;
      --brand2:#2cc6ff;
      --accent:#14b8a6;
      --warm:#ffb84d;
      --shadow:0 16px 40px rgba(28,52,110,.10);
      --radius:20px;
      --radius2:28px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,#f9fbff 0%,#f4f8ff 42%,#f7f9fc 100%);color:var(--text)}
    a{color:var(--brand);text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    .topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.84);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,229,242,.75)}
    .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:44px;height:44px;object-fit:contain}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
    .navlinks{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .navlinks a{font-size:14px;color:var(--text);padding:8px 10px;border-radius:999px}
    .navlinks a:hover,.navlinks a.active{background:#eaf1ff;color:var(--brand)}
    .nav-cta{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:.25s ease;box-shadow:none}
    .btn-primary{background:linear-gradient(135deg,var(--brand) 0%,var(--brand2) 100%);color:#fff;box-shadow:0 12px 24px rgba(36,107,255,.24)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 28px rgba(36,107,255,.28)}
    .btn-soft{background:#eef5ff;color:#1849ba}
    .btn-soft:hover{transform:translateY(-2px);background:#e3eeff}
    .menu-btn{display:none;background:#eef5ff;border:1px solid #d6e3fb;color:var(--text);border-radius:14px;padding:10px 12px}
    .hero{padding:46px 0 18px;position:relative;overflow:hidden}
    .hero:before,.hero:after{content:"";position:absolute;border-radius:50%;filter:blur(10px);pointer-events:none}
    .hero:before{width:300px;height:300px;background:radial-gradient(circle,rgba(44,198,255,.18),rgba(44,198,255,0) 68%);right:-80px;top:-40px}
    .hero:after{width:260px;height:260px;background:radial-gradient(circle,rgba(36,107,255,.16),rgba(36,107,255,0) 70%);left:-70px;bottom:-100px}
    .hero-grid{display:grid;grid-template-columns:1.35fr .95fr;gap:24px;align-items:stretch}
    .hero-copy,.hero-panel,.card,.section,.faq-item,.review,.article,.price,.timeline li,.compare,.form-card{background:rgba(255,255,255,.86);border:1px solid rgba(220,229,242,.9);box-shadow:var(--shadow);border-radius:var(--radius2)}
    .hero-copy{padding:32px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:#1a56db;background:#eaf2ff;border:1px solid #d7e4ff;padding:8px 12px;border-radius:999px}
    h1{font-size:clamp(30px,4vw,52px);line-height:1.08;margin:18px 0 14px;letter-spacing:-.02em}
    .lead{font-size:17px;line-height:1.8;color:var(--muted);margin:0 0 22px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 18px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .mini{padding:14px 14px 13px;border-radius:18px;background:linear-gradient(180deg,#f7faff,#eef5ff);border:1px solid #dbe6fb}
    .mini strong{display:block;font-size:18px;margin-bottom:4px}
    .mini span{font-size:13px;color:var(--muted);line-height:1.55}
    .hero-panel{padding:20px;display:grid;gap:14px;align-content:start}
    .hero-metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .metric{padding:16px;border-radius:18px;background:#fff;border:1px solid #e5edf9}
    .metric b{display:block;font-size:24px;color:#14356f;margin-bottom:3px}
    .metric small{color:var(--muted)}
    .panel-note{padding:16px;border-radius:18px;background:linear-gradient(135deg,#eff7ff,#f6fbff);border:1px solid #dcecff;color:#26446f;line-height:1.7}
    section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:14px}
    .section-head h2{margin:0;font-size:clamp(22px,2.8vw,34px);line-height:1.15}
    .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}
    .card{padding:20px}
    .card h3{margin:10px 0 8px;font-size:18px}
    .card p,.card li{color:var(--muted);line-height:1.7}
    .icon{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#e8f1ff,#dff4ff);display:grid;place-items:center;color:#1c5cff;font-weight:800}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid #dde6f3;color:#35527b;font-size:14px}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{position:relative;padding:20px}
    .step:after{content:"";position:absolute;right:-10px;top:26px;width:18px;height:2px;background:linear-gradient(90deg,var(--brand),transparent)}
    .step:last-child:after{display:none}
    .step-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:12px;background:#eaf1ff;color:#1c54d7;font-weight:800}
    .compare-wrap{overflow:auto;border-radius:var(--radius2)}
    table{width:100%;border-collapse:collapse;min-width:860px;background:#fff}
    th,td{padding:16px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
    th{background:#f3f7ff;color:#17315e}
    td{color:#40516f}
    .good{color:#0f9d58;font-weight:700}
    .score{font-size:28px;font-weight:800;color:#113979}
    .subscore{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#eef7ff;color:#2457cf;font-weight:700}
    .grid-mixed{display:grid;grid-template-columns:1.1fr .9fr;gap:14px}
    .timeline{list-style:none;padding:0;margin:0;display:grid;gap:12px}
    .timeline li{padding:18px 18px 18px 20px;display:flex;gap:14px;align-items:flex-start}
    .timeline .dot{width:12px;height:12px;border-radius:50%;margin-top:7px;background:linear-gradient(135deg,var(--brand),var(--brand2));box-shadow:0 0 0 6px #e8f2ff}
    .case{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .case .card{min-height:100%}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .review .role{color:#1e56ca;font-weight:700;font-size:13px;margin-bottom:10px}
    .stars{color:#ffb640;letter-spacing:2px;font-size:16px}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .article .meta{font-size:13px;color:#6c7a92;margin-top:10px}
    .faq{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;padding:18px 20px;background:transparent;border:0;display:flex;align-items:center;justify-content:space-between;gap:18px;font-size:16px;font-weight:700;color:var(--text);cursor:pointer;text-align:left}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease,padding .28s ease;border-top:1px solid transparent}
    .faq-item.open .faq-a{max-height:220px;padding:0 20px 18px;border-top-color:#e4edf8}
    .faq-a p{margin:0;color:var(--muted);line-height:1.75}
    .form-card{padding:22px}
    form{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .field{display:grid;gap:8px}
    .field.full{grid-column:1/-1}
    label{font-weight:700;font-size:14px}
    input,select,textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid #d9e3f1;background:#fff;color:var(--text);font:inherit;outline:none;transition:.2s}
    input:focus,select:focus,textarea:focus{border-color:#7fb0ff;box-shadow:0 0 0 4px rgba(36,107,255,.08)}
    textarea{min-height:126px;resize:vertical}
    .form-actions{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
    .note{font-size:13px;color:var(--muted);line-height:1.6}
    .footer{padding:24px 0 34px}
    .footer-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
    .footer-box{padding:22px}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 12px;border-radius:999px;background:#f1f6ff;border:1px solid #dbe6fb;color:#27456f}
    .contact-list{display:grid;gap:10px;color:var(--muted)}
    .floating{position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px}
    .float-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 14px;border-radius:999px;background:#fff;color:var(--text);border:1px solid #dbe6fb;box-shadow:var(--shadow);font-weight:700}
    .top{background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff}
    .menu{display:none}
    .news-tags{display:flex;flex-wrap:wrap;gap:10px}
    .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .price strong{display:block;font-size:30px;margin:8px 0;color:#163b7a}
    .price ul{margin:0;padding-left:18px;display:grid;gap:8px;color:var(--muted)}
    .service-map{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
    .chip{padding:14px;border-radius:18px;background:linear-gradient(180deg,#ffffff,#f3f7ff);border:1px solid #dbe6fb;text-align:center;color:#23406c;font-weight:700}
    .hidden{display:none}
    @media (max-width: 1080px){
      .hero-grid,.grid-mixed,.footer-inner{grid-template-columns:1fr}
      .grid-4,.grid-3,.workflow,.reviews,.articles,.case,.price-grid,.service-map{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width: 760px){
      .navlinks,.nav-cta{display:none}
      .menu-btn{display:inline-flex}
      .menu{display:none;padding:0 0 14px}
      .menu.open{display:grid;gap:10px}
      .menu a{padding:12px 14px;border-radius:14px;background:#f4f8ff;color:var(--text);border:1px solid #dde7f7}
      .hero{padding-top:24px}
      .hero-copy,.hero-panel,.card,.section,.faq-item,.review,.article,.price,.timeline li,.compare,.form-card,.footer-box{border-radius:22px}
      .hero-points,.hero-metrics,.grid-4,.grid-3,.workflow,.reviews,.articles,.case,.price-grid,.service-map{grid-template-columns:1fr}
      .step:after{display:none}
      form{grid-template-columns:1fr}
      .section-head{align-items:flex-start;flex-direction:column}
      .floating{right:12px;bottom:12px}
    }