:root{
      --bg:#f6f7fb;
      --panel:#ffffff;
      --panel-2:#fdf8ef;
      --line:#e6e9f0;
      --text:#18202b;
      --muted:#5f6b7a;
      --brand:#2157f3;
      --brand-2:#ff7a59;
      --brand-3:#13bfa6;
      --shadow:0 18px 40px rgba(26,40,68,.08);
      --radius:20px;
      --radius-sm:14px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(33,87,243,.08), transparent 28%),
        radial-gradient(circle at right 18%, rgba(255,122,89,.08), transparent 24%),
        radial-gradient(circle at 50% 90%, rgba(19,191,166,.08), transparent 22%),
        var(--bg);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .topbar{
      position:sticky;top:0;z-index:50;
      backdrop-filter:blur(14px);
      background:rgba(246,247,251,.88);
      border-bottom:1px solid rgba(230,233,240,.9);
    }
    .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;border-radius:12px;background:#fff;padding:4px;border:1px solid var(--line)}
    .brand h2{margin:0;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    .nav-links{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:var(--muted);padding:8px 10px;border-radius:10px}
    .nav-links a:hover{background:#fff;color:var(--text)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:1px solid transparent;border-radius:14px;padding:12px 18px;font-weight:700;
      transition:.22s ease;cursor:pointer;white-space:nowrap
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),#5a78ff);color:#fff;box-shadow:0 12px 24px rgba(33,87,243,.22)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(33,87,243,.28)}
    .btn-light{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
    header.hero{padding:34px 0 20px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
    .hero-main,.hero-side,.section-card,.panel,.faq-item,.review,.article,.step,.metric,.service,.compare,.form-card,.contact-card,.timeline-item,.tag-cloud,.price-card{
      background:rgba(255,255,255,.82);border:1px solid rgba(230,233,240,.95);box-shadow:var(--shadow);border-radius:var(--radius)
    }
    .hero-main{padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(33,87,243,.08);color:var(--brand);font-weight:700;font-size:13px}
    h1{margin:16px 0 14px;font-size:clamp(30px,4vw,52px);line-height:1.08;letter-spacing:-.03em}
    .lead{margin:0;color:var(--muted);font-size:16px;line-height:1.85;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}
    .metric{padding:18px}
    .metric strong{display:block;font-size:24px;margin-bottom:6px}
    .metric span{font-size:13px;color:var(--muted);line-height:1.5}
    .hero-side{padding:22px;display:grid;gap:14px;align-content:start}
    .side-box{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid var(--line)}
    .side-box h3{margin:0 0 8px;font-size:18px}
    .side-box p{margin:0;color:var(--muted);line-height:1.7;font-size:14px}
    .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .tag{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#314155}
    .section{padding:18px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:62ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .service,.step,.review,.article,.compare,.form-card,.contact-card,.timeline-item,.price-card{padding:20px}
    .service h3,.step h3,.review h3,.article h3,.compare h3,.form-card h3,.contact-card h3,.timeline-item h3,.price-card h3{margin:0 0 10px;font-size:18px}
    .service p,.step p,.review p,.article p,.compare p,.form-card p,.contact-card p,.timeline-item p,.price-card p{margin:0;color:var(--muted);line-height:1.75}
    .icon{
      width:42px;height:42px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg,rgba(33,87,243,.12),rgba(255,122,89,.12));color:var(--brand);font-weight:800;margin-bottom:12px
    }
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step{position:relative}
    .step .num{position:absolute;top:18px;right:18px;font-size:12px;font-weight:800;color:rgba(33,87,243,.3)}
    .table-wrap{overflow:auto;border-radius:18px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:820px}
    th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
    th{background:#f7f9fd;font-size:14px}
    td{font-size:14px;color:#314155}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:rgba(19,191,166,.1);color:#0f8e7b;font-size:12px;font-weight:700}
    .rating{display:flex;align-items:center;gap:10px;margin:10px 0 16px;color:#ef8a19;font-weight:800}
    .rating .score{color:var(--text)}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;border:0;background:transparent;color:var(--text);padding:18px 20px;font-size:16px;font-weight:700;display:flex;justify-content:space-between;align-items:center;gap:14px;cursor:pointer}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 20px}
    .faq-a p{margin:0 0 18px;color:var(--muted);line-height:1.8}
    .faq-item.active .faq-a{max-height:220px}
    .review small{color:var(--muted)}
    .chip-list{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;color:#3a4858;font-size:13px}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article a.more{display:inline-flex;margin-top:14px;color:var(--brand);font-weight:700}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    label{font-size:14px;font-weight:700;color:#304055}
    input,select,textarea{
      width:100%;border:1px solid var(--line);background:#fff;border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);outline:none;
    }
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(33,87,243,.55);box-shadow:0 0 0 4px rgba(33,87,243,.1)}
    .footer{padding:26px 0 34px;color:#3d4a5b}
    .footer .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:16px}
    .footer a{color:#234de6}
    .copyright{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:#667587}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .floating a,.floating button{
      border:0;box-shadow:var(--shadow);border-radius:999px;padding:12px 14px;font-weight:800;cursor:pointer
    }
    .floating .kf{background:linear-gradient(135deg,var(--brand-3),#35d4c0);color:#fff}
    .floating .top{background:#fff;color:var(--text);border:1px solid var(--line)}
    .consult{
      display:grid;grid-template-columns:160px 1fr;gap:16px;align-items:center
    }
    .consult img{border-radius:16px;border:1px solid var(--line);background:#fff;padding:8px}
    .split{
      display:grid;grid-template-columns:1fr 1fr;gap:16px
    }
    .timeline{display:grid;gap:12px}
    .timeline-item{display:grid;grid-template-columns:88px 1fr;gap:14px;align-items:start}
    .timeline-item strong{color:var(--brand)}
    .table-note{padding:14px 16px;background:#f8fbff;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
    .muted{color:var(--muted)}
    .mobile-only{display:none}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-2,.articles,.workflow,.footer .footer-grid,.split,.consult{grid-template-columns:1fr}
      .hero-stats{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:start}
      .nav-toggle{display:inline-flex}
      .nav-links{display:none;width:100%;padding:10px 0 0}
      .nav-links.open{display:flex;flex-direction:column;align-items:stretch}
      .nav{flex-wrap:wrap}
      .nav-links a{background:#fff}
      .mobile-only{display:block}
      table{min-width:760px}
    }