:root{
      --bg:#f7f8fc;
      --bg2:#eef3ff;
      --card:#ffffff;
      --text:#1e2a3b;
      --muted:#607086;
      --line:#dbe3f0;
      --primary:#4968ff;
      --primary2:#7a4dff;
      --accent:#ff6b88;
      --accent2:#ffb84d;
      --shadow:0 16px 40px rgba(31,54,101,.10);
      --radius:22px;
      --container: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(73,104,255,.12), transparent 28%),
        radial-gradient(circle at top right, rgba(255,107,136,.10), transparent 24%),
        linear-gradient(180deg, #fff 0%, var(--bg) 38%, #f4f7ff 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    header{
      position:sticky;top:0;z-index:40;
      backdrop-filter:saturate(1.2) blur(14px);
      background:rgba(247,248,252,.78);
      border-bottom:1px solid rgba(219,227,240,.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:0 6px 16px rgba(0,0,0,.08)}
    .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;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#324255;opacity:.92}
    .nav-links a:hover{color:var(--primary)}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:12px 18px;border-radius:999px;border:1px solid transparent;
      font-weight:700;font-size:14px;transition:.2s ease;cursor:pointer;
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;box-shadow:0 14px 26px rgba(73,104,255,.22)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;width:44px;height:44px}
    .menu-btn span{display:block;width:18px;height:2px;background:#334155;margin:4px auto;border-radius:2px}
    .hero{padding:34px 0 20px}
    .hero-grid{display:grid;grid-template-columns:1.22fr .78fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.panel,.card,.faq-item,.review,.post,.step,.price-box,.table-wrap,.form-box,.contact-box,.compare-card{background:var(--card);border:1px solid rgba(219,227,240,.9);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-main{padding:34px;position:relative;overflow:hidden}
    .hero-main::before,.hero-main::after{
      content:"";position:absolute;border-radius:50%;filter:blur(2px);pointer-events:none
    }
    .hero-main::before{width:260px;height:260px;right:-90px;top:-90px;background:radial-gradient(circle, rgba(122,77,255,.18), transparent 62%)}
    .hero-main::after{width:180px;height:180px;right:70px;bottom:-60px;background:radial-gradient(circle, rgba(255,107,136,.12), transparent 62%)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:linear-gradient(90deg, rgba(73,104,255,.10), rgba(255,107,136,.10));color:#34425d;font-size:13px;font-weight:700}
    h1{margin:16px 0 14px;font-size:clamp(30px,4vw,52px);line-height:1.08;letter-spacing:-.02em}
    .hero p{margin:0;color:var(--muted);font-size:16px;line-height:1.8;max-width:60ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-points{display:grid;grid-template-columns:repeat(3, minmax(0,1fr));gap:12px;margin-top:24px}
    .mini{
      padding:14px;border-radius:18px;background:linear-gradient(180deg, #fff, #f8faff);border:1px solid #e5ebf6
    }
    .mini b{display:block;font-size:18px;color:#162133}
    .mini span{display:block;margin-top:6px;font-size:13px;color:var(--muted);line-height:1.5}
    .hero-side{padding:22px;display:flex;flex-direction:column;gap:14px}
    .side-top{padding:18px;border-radius:18px;background:linear-gradient(135deg, rgba(73,104,255,.08), rgba(255,184,77,.10));border:1px solid rgba(73,104,255,.12)}
    .side-top h3{margin:0 0 8px;font-size:18px}
    .side-top p{margin:0;color:var(--muted);line-height:1.75;font-size:14px}
    .home-link{display:inline-flex;margin-top:12px;font-weight:700;color:var(--primary)}
    .stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .stat{padding:16px;border-radius:18px;background:#fff;border:1px solid #e6ecf6}
    .stat strong{display:block;font-size:24px;line-height:1}
    .stat span{display:block;margin-top:6px;font-size:13px;color:var(--muted);line-height:1.5}
    .section{padding:18px 0 4px}
    .section-head{display:flex;align-items: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);line-height:1.7;max-width:68ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .card{padding:18px}
    .card h3,.step h3,.review h3,.post h3,.compare-card h3{margin:0 0 8px;font-size:18px}
    .card p,.step p,.review p,.post p,.price-box p,.faq-item p,.contact-box p{margin:0;color:var(--muted);line-height:1.75;font-size:14px}
    .badge{display:inline-flex;padding:6px 10px;border-radius:999px;background:#eef3ff;color:#3750c8;font-size:12px;font-weight:700;margin-bottom:12px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid #dfe6f3;color:#334155;font-size:13px}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .panel{padding:20px}
    .timeline{display:grid;gap:12px}
    .timeline-item{display:grid;grid-template-columns:72px 1fr;gap:14px;align-items:start;padding:14px;border-radius:16px;background:#f9fbff;border:1px solid #e7edf8}
    .timeline-item strong{display:inline-flex;align-items:center;justify-content:center;height:34px;border-radius:999px;background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;font-size:12px}
    .timeline-item p{margin:0;color:var(--muted);line-height:1.65;font-size:14px}
    .table-wrap{overflow:auto;padding:6px}
    table{width:100%;border-collapse:separate;border-spacing:0;min-width:760px}
    th,td{padding:14px 14px;border-bottom:1px solid #e7edf8;text-align:left;vertical-align:top;font-size:14px;line-height:1.7}
    th{background:#f6f8ff;color:#24324a;font-size:13px}
    tr:last-child td{border-bottom:none}
    .rating{color:#f2a400;font-weight:800}
    .form-box{padding:22px}
    form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    label{display:grid;gap:8px;font-size:13px;color:#374151;font-weight:700}
    input,select,textarea{
      width:100%;border:1px solid #d6deeb;border-radius:14px;padding:12px 14px;
      font:inherit;background:#fff;color:var(--text);outline:none;transition:.2s ease
    }
    textarea{min-height:124px;resize:vertical;grid-column:1 / -1}
    input:focus,select:focus,textarea:focus{border-color:rgba(73,104,255,.7);box-shadow:0 0 0 4px rgba(73,104,255,.10)}
    .full{grid-column:1 / -1}
    .faq{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{
      width:100%;text-align:left;background:none;border:none;padding:18px;display:flex;justify-content:space-between;gap:14px;
      align-items:center;cursor:pointer;color:var(--text);font:inherit;font-weight:800
    }
    .faq-q span{font-size:15px;line-height:1.55}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 18px}
    .faq-item.open .faq-a{padding-bottom:18px;max-height:200px}
    .faq-item.open .chev{transform:rotate(180deg)}
    .chev{transition:.25s ease;color:var(--muted)}
    .review-meta{display:flex;align-items:center;gap:10px;margin-bottom:12px}
    .avatar{
      width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,rgba(73,104,255,.16),rgba(255,107,136,.16));
      display:grid;place-items:center;font-weight:900;color:#36435d
    }
    .review small{color:var(--muted)}
    .post a{display:inline-flex;margin-top:12px;color:var(--primary);font-weight:700}
    .contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:14px}
    .contact-box{padding:22px}
    .contact-list{display:grid;gap:10px;margin-top:14px}
    .contact-list div{display:flex;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:14px;background:#f9fbff;border:1px solid #e7edf8}
    .contact-list b{white-space:nowrap}
    .qr{
      display:grid;grid-template-columns:96px 1fr;gap:14px;align-items:center;padding:14px;border-radius:18px;background:#f9fbff;border:1px solid #e7edf8
    }
    .qr img{width:96px;height:96px;object-fit:cover;border-radius:16px;background:#fff}
    footer{
      margin-top:18px;background:#162033;color:#dbe6ff;border-top:1px solid rgba(255,255,255,.08)
    }
    .footer-inner{padding:24px 0}
    .footer-top{display:grid;grid-template-columns:1.2fr .8fr;gap:16px;align-items:start}
    .footer-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}
    .footer-links a{color:#dbe6ff;opacity:.95}
    .footer-links a:hover{color:#fff}
    .copyright{margin-top:16px;font-size:13px;color:#aebbd4;line-height:1.7}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:45;display:grid;gap:10px
    }
    .float-btn{
      width:48px;height:48px;border-radius:16px;border:none;background:linear-gradient(135deg,var(--primary),var(--primary2));
      color:#fff;box-shadow:0 14px 24px rgba(73,104,255,.25);cursor:pointer
    }
    .float-box{
      position:fixed;right:16px;bottom:76px;z-index:46;width:min(360px, calc(100vw - 32px));
      background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:22px;padding:16px;display:none
    }
    .float-box.open{display:block;animation:pop .22s ease}
    .float-box h4{margin:0 0 8px;font-size:16px}
    .float-box p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .float-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
    .scroll-top{position:fixed;right:16px;bottom:132px}
    .reveal{opacity:0;transform:translateY(14px);transition:.55s ease}
    .reveal.show{opacity:1;transform:none}
    @keyframes pop{from{transform:translateY(8px);opacity:.2}to{transform:none;opacity:1}}
    @media (max-width: 980px){
      .hero-grid,.contact-grid,.footer-top,.split,.grid-4,.grid-3{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .nav-links,.nav-cta{display:none}
      .menu-btn{display:inline-grid;place-items:center}
      .nav.open .nav-links,.nav.open .nav-cta{
        display:flex;position:absolute;left:16px;right:16px;top:68px;background:#fff;border:1px solid var(--line);
        border-radius:20px;padding:14px;flex-direction:column;align-items:flex-start;box-shadow:var(--shadow)
      }
      .nav.open .nav-links{gap:12px}
      .nav.open .nav-cta{top:auto;bottom:-92px;flex-direction:row;justify-content:space-between;width:auto}
      form{grid-template-columns:1fr}
      textarea,.full{grid-column:auto}
      .section-head{flex-direction:column;align-items:flex-start}
      .timeline-item{grid-template-columns:1fr}
    }