:root{
      --bg:#f6f8fc;
      --panel:#ffffff;
      --panel-2:#f0f5ff;
      --text:#182235;
      --muted:#5b6476;
      --line:#dbe4f3;
      --brand:#5b6cff;
      --brand-2:#21d4fd;
      --accent:#8a5cff;
      --glow:rgba(91,108,255,.22);
      --shadow:0 18px 50px rgba(22,31,58,.10);
      --radius:22px;
      --radius-sm:16px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(33,212,253,.20), transparent 26%),
        radial-gradient(circle at top right, rgba(138,92,255,.16), transparent 24%),
        linear-gradient(180deg, #f8fbff 0%, #f4f7fc 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:saturate(1.2) blur(16px);
      background:rgba(248,250,255,.82);
      border-bottom:1px solid rgba(219,228,243,.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:42px;height:42px;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}
    .nav-links{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:8px}
    .nav-links a{
      padding:9px 12px;border-radius:999px;font-size:14px;color:var(--text);
      transition:.22s ease;background:transparent;
    }
    .nav-links a:hover,.nav-links a:focus{background:#eef3ff;color:#22305b}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:1px solid transparent;border-radius:999px;padding:12px 18px;
      font-weight:700;transition:.22s ease;cursor:pointer;
    }
    .btn-primary{
      color:#fff;background:linear-gradient(135deg,var(--brand),var(--accent));
      box-shadow:0 14px 28px rgba(91,108,255,.22);
    }
    .btn-primary:hover{transform:translateY(-1px);box-shadow:0 18px 34px rgba(91,108,255,.28)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{border-color:#bcc9ea;transform:translateY(-1px)}
    .menu-toggle{display:none}
    .hero{
      position:relative;overflow:hidden;
      padding:72px 0 34px;
    }
    .hero::before,.hero::after{
      content:"";position:absolute;border-radius:50%;filter:blur(12px);pointer-events:none;
    }
    .hero::before{width:280px;height:280px;right:-80px;top:30px;background:radial-gradient(circle, rgba(33,212,253,.26), transparent 66%)}
    .hero::after{width:240px;height:240px;left:-100px;bottom:10px;background:radial-gradient(circle, rgba(138,92,255,.18), transparent 68%)}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:26px;align-items:stretch}
    .hero-copy,.hero-panel,.card,.section-card,.faq-item,.review,.price-card,.contact-card,.compare,.article,.timeline-item{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(219,228,243,.95);
      box-shadow:var(--shadow);
    }
    .hero-copy{
      border-radius:30px;padding:34px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.95), rgba(245,249,255,.92));
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      font-size:13px;font-weight:700;color:#3551b7;
      background:#edf3ff;border:1px solid #dbe6ff;border-radius:999px;padding:8px 12px;
    }
    h1{font-size:clamp(30px,5vw,54px);line-height:1.08;margin:16px 0 14px}
    .lead{font-size:17px;line-height:1.85;color:var(--muted);margin:0 0 20px;max-width:56ch}
    .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-stat{
      padding:14px;border-radius:18px;background:linear-gradient(180deg,#f8fbff,#eef4ff);border:1px solid #dce6fb;
    }
    .mini-stat b{display:block;font-size:18px;margin-bottom:6px}
    .mini-stat span{display:block;font-size:13px;color:var(--muted);line-height:1.5}
    .hero-panel{border-radius:30px;padding:24px;background:
      linear-gradient(180deg, rgba(91,108,255,.10), rgba(33,212,253,.06)),
      rgba(255,255,255,.9);
    }
    .hero-panel h2{margin:0 0 12px;font-size:20px}
    .bullet{display:grid;gap:10px;margin:16px 0 0;padding:0;list-style:none}
    .bullet li{
      display:flex;gap:10px;align-items:flex-start;
      padding:12px 14px;border-radius:16px;background:#fff;border:1px solid #e4ebf7;
    }
    .dot{width:10px;height:10px;border-radius:50%;margin-top:6px;background:linear-gradient(135deg,var(--brand-2),var(--accent));flex:none}
    .section{padding:18px 0 2px}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:60ch;line-height:1.7}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .card,.section-card,.review,.price-card,.contact-card,.compare,.article,.timeline-item,.faq-item{
      border-radius:22px;padding:22px;
    }
    .card h3,.section-card h3,.price-card h3,.compare h3{margin:0 0 10px;font-size:18px}
    .card p,.section-card p,.review p,.article p,.timeline-item p,.price-card p{margin:0;color:var(--muted);line-height:1.75}
    .metric{display:flex;flex-direction:column;gap:10px}
    .metric strong{font-size:32px;line-height:1}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:10px 14px;border-radius:999px;background:#fff;border:1px solid #dce6fb;color:#28406f;font-size:13px}
    .steps{counter-reset:step}
    .step{
      position:relative;padding-top:18px
    }
    .step::before{
      counter-increment:step;content:counter(step);
      position:absolute;left:22px;top:-16px;width:36px;height:36px;border-radius:50%;
      display:grid;place-items:center;color:#fff;font-weight:800;
      background:linear-gradient(135deg,var(--brand),var(--accent));
      box-shadow:0 10px 24px rgba(91,108,255,.24);
    }
    .step{padding-top:30px}
    .table-wrap{overflow:auto;border-radius:22px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:16px 18px;border-bottom:1px solid #e7eef8;text-align:left;vertical-align:top}
    th{background:#f4f7ff;color:#1b2a4d;font-size:14px}
    td{color:#31415f;line-height:1.7}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:#eef4ff;color:#3551b7;font-size:12px;font-weight:700}
    .rating-box{
      display:flex;flex-wrap:wrap;gap:12px;align-items:center;
      padding:14px 16px;border-radius:18px;background:linear-gradient(135deg,#f0f5ff,#eefcff);border:1px solid #d7e4ff;
      margin-top:14px
    }
    .stars{color:#ffb400;font-size:18px;letter-spacing:1px}
    .accordion{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;border:0;background:transparent;padding:18px 20px;
      display:flex;justify-content:space-between;gap:16px;text-align:left;
      font-size:16px;font-weight:700;color:var(--text);cursor:pointer
    }
    .faq-a{display:none;padding:0 20px 18px;color:var(--muted);line-height:1.8}
    .faq-item.active .faq-a{display:block}
    .faq-item.active .faq-q{background:#f6f9ff}
    .review-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
    .review-name{font-weight:800}
    .review-role{font-size:12px;color:var(--muted);margin-top:4px}
    .quote{font-size:15px;line-height:1.8;color:#33415d}
    .support{
      display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start
    }
    .contact-card form{display:grid;gap:12px}
    .input, .select, .textarea{
      width:100%;border:1px solid #d8e1f1;background:#fff;color:var(--text);
      border-radius:14px;padding:13px 14px;font:inherit;outline:none;transition:.2s ease
    }
    .input:focus,.select:focus,.textarea:focus{border-color:#8ca6ff;box-shadow:0 0 0 4px rgba(91,108,255,.10)}
    .textarea{min-height:120px;resize:vertical}
    .footer{
      margin-top:18px;padding:28px 0 34px;background:#eef3fb;border-top:1px solid #d7e0ef;color:#23314f
    }
    .footer a{color:#23314f}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px}
    .footer h3{margin:0 0 12px;font-size:18px}
    .footer p,.footer li{color:#4f5b70;line-height:1.8}
    .footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
    .footer .home-link{display:inline-flex;margin-top:8px}
    .float-tools{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      width:52px;height:52px;border-radius:18px;border:1px solid rgba(219,228,243,.95);
      background:#fff;display:grid;place-items:center;box-shadow:var(--shadow);font-weight:800;color:#2a3560
    }
    .float-btn.primary{background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff}
    .mobile-only{display:none}
    .reveal{opacity:0;transform:translateY(16px);transition:.55s ease}
    .reveal.in{opacity:1;transform:translateY(0)}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .timeline-item{position:relative}
    .timeline-item b{display:block;margin-bottom:8px}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article .meta{margin-top:10px;font-size:13px;color:#6a7387}
    .contact-points{display:grid;gap:10px;margin-top:16px}
    .contact-line{padding:12px 14px;border-radius:14px;background:#f8fbff;border:1px solid #dce6fb;color:#32415b}
    .picture-row{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .picture-row img{border-radius:20px;box-shadow:var(--shadow);border:1px solid #dbe4f3}
    @media (max-width: 1024px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.footer-grid,.support,.timeline,.articles,.picture-row{grid-template-columns:1fr 1fr}
      .hero-points{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .nav.open .nav-links{
        display:flex;position:absolute;left:16px;right:16px;top:74px;flex-direction:column;
        padding:14px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)
      }
    }
    @media (max-width: 760px){
      .container{width:min(var(--max), calc(100% - 22px))}
      .hero{padding-top:30px}
      .hero-grid,.grid-4,.grid-3,.grid-2,.footer-grid,.support,.timeline,.articles,.picture-row{grid-template-columns:1fr}
      .hero-copy,.hero-panel,.card,.section-card,.review,.price-card,.contact-card,.compare,.article,.timeline-item,.faq-item{padding:18px}
      .section-head{align-items:flex-start;flex-direction:column}
      h1{font-size:34px}
      .nav{position:relative}
      .nav-cta .btn-ghost{display:none}
      .mobile-only{display:inline-flex}
      table{min-width:780px}
      .float-tools{right:12px;bottom:12px}
    }