:root{
      --bg:#f6f8fc;
      --panel:#ffffff;
      --panel-2:#f3f7ff;
      --text:#172033;
      --muted:#5f6b85;
      --line:#dce5f2;
      --primary:#4b6fff;
      --primary-2:#7c5cff;
      --accent:#0fb7a7;
      --warm:#ffb84d;
      --shadow:0 18px 50px rgba(31,52,103,.12);
      --shadow-2:0 12px 28px rgba(31,52,103,.08);
      --radius:20px;
      --radius-sm:14px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC","Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(75,111,255,.16), transparent 30%),
        radial-gradient(circle at top right, rgba(124,92,255,.14), transparent 24%),
        linear-gradient(180deg, #fbfcff 0%, #f4f7fc 100%);
      min-height:100vh;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{
      width:min(var(--max), calc(100% - 32px));
      margin:0 auto;
    }
    .nav{
      position:sticky;top:0;z-index:50;
      backdrop-filter: blur(16px);
      background: rgba(251,252,255,.82);
      border-bottom:1px solid rgba(220,229,242,.8);
    }
    .nav-inner{
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      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;border:1px solid var(--line);padding:5px;box-shadow:var(--shadow-2)}
    .brand strong{display:block;font-size:16px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:4px}
    .nav-links{
      display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end;
      font-size:14px;color:var(--muted)
    }
    .nav-links a{padding:8px 10px;border-radius:999px;transition:.2s ease}
    .nav-links a:hover,.nav-links a.active{color:var(--text);background:rgba(75,111,255,.08)}
    .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;font-size:14px;transition:.22s ease;cursor:pointer;
      box-shadow:0 10px 22px rgba(75,111,255,.12);
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff}
    .btn-ghost{background:#fff;color:var(--text);border-color:var(--line)}
    .btn:hover{transform:translateY(-1px);box-shadow:0 16px 28px rgba(75,111,255,.18)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px}
    .hero{
      padding:28px 0 18px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch;
    }
    .hero-main,.hero-side,.section-card{
      background:rgba(255,255,255,.9);
      border:1px solid rgba(220,229,242,.95);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-main{
      padding:30px;
      position:relative;
      overflow:hidden;
      min-height:420px;
    }
    .hero-main:before,.hero-main:after{
      content:"";position:absolute;border-radius:50%;filter:blur(12px);pointer-events:none;
    }
    .hero-main:before{width:200px;height:200px;background:rgba(75,111,255,.15);right:-40px;top:-20px}
    .hero-main:after{width:180px;height:180px;background:rgba(15,183,167,.12);right:150px;bottom:-80px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;background:rgba(75,111,255,.08);color:#3352d4;
      font-size:13px;font-weight:700;
    }
    h1{font-size:clamp(30px,5vw,52px);line-height:1.08;margin:18px 0 14px;letter-spacing:-.02em}
    .lead{font-size:16px;line-height:1.9;color:var(--muted);max-width:58ch}
    .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-stat{
      background:linear-gradient(180deg,#fff, #f7faff);
      border:1px solid var(--line);border-radius:16px;padding:16px;min-height:108px
    }
    .mini-stat strong{font-size:24px;display:block}
    .mini-stat span{display:block;color:var(--muted);font-size:13px;margin-top:8px;line-height:1.6}
    .hero-side{padding:20px;display:flex;flex-direction:column;gap:14px}
    .side-card{
      background:linear-gradient(180deg,#f8fbff,#eef4ff);
      border:1px solid rgba(75,111,255,.15);
      border-radius:18px;padding:18px
    }
    .side-card h3{margin:0 0 10px;font-size:18px}
    .side-list{margin:0;padding:0;list-style:none;display:grid;gap:10px;color:var(--muted);font-size:14px;line-height:1.7}
    .side-list li{display:flex;gap:10px;align-items:flex-start}
    .dot{width:9px;height:9px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--primary));margin-top:7px;flex:none}
    .section{padding:18px 0}
    .section-head{display:flex;justify-content:space-between;gap:16px;align-items:end;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);line-height:1.8;max-width:62ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .card{
      background:rgba(255,255,255,.92);
      border:1px solid var(--line);
      border-radius:18px;
      padding:18px;
      box-shadow:var(--shadow-2);
      transition:.22s ease;
    }
    .card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .card h3,.card h4{margin:0 0 10px}
    .card p{margin:0;color:var(--muted);line-height:1.8}
    .icon-badge{
      width:42px;height:42px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg,rgba(75,111,255,.12),rgba(124,92,255,.12));color:#3658e3;font-weight:900;margin-bottom:12px
    }
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:10px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#34415f;font-size:13px}
    .timeline{display:grid;gap:14px}
    .step{
      display:grid;grid-template-columns:64px 1fr;gap:14px;align-items:start;
      background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px
    }
    .num{
      width:48px;height:48px;border-radius:16px;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;font-weight:900;font-size:18px
    }
    .compare-wrap{overflow:auto;border-radius:18px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:820px}
    th,td{padding:16px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:14px;line-height:1.7}
    th{background:#f6f9ff;color:#24304d;font-size:13px;letter-spacing:.02em}
    tr:last-child td{border-bottom:none}
    .good{color:#0d8b6b;font-weight:700}
    .star{color:#ffb649;font-weight:900}
    .rating-box{display:grid;grid-template-columns:1.1fr .9fr;gap:16px;align-items:stretch}
    .rating-card{
      background:linear-gradient(135deg,rgba(75,111,255,.1),rgba(15,183,167,.08));
      border:1px solid rgba(75,111,255,.16);
      border-radius:20px;padding:20px
    }
    .big-score{font-size:54px;line-height:1;font-weight:900;margin:8px 0 10px}
    .progress{height:10px;border-radius:999px;background:#e7eefb;overflow:hidden}
    .progress span{display:block;height:100%;width:99%;background:linear-gradient(90deg,var(--primary),var(--accent))}
    .accordion{display:grid;gap:12px}
    .faq-item{
      background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden
    }
    .faq-q{
      width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;
      padding:16px 18px;background:#fff;border:none;color:var(--text);font:inherit;font-weight:700;cursor:pointer;text-align:left
    }
    .faq-q span{color:var(--primary);font-size:18px;flex:none}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 18px}
    .faq-item.open .faq-a{padding-bottom:16px;max-height:220px}
    .faq-a p{margin:0;color:var(--muted);line-height:1.8}
    .reviews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .review{
      background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px
    }
    .review .meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
    .avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:900;background:linear-gradient(135deg,var(--primary),var(--primary-2))}
    .review small{color:var(--muted)}
    .article-list{display:grid;gap:12px}
    .article{
      display:flex;justify-content:space-between;gap:16px;align-items:center;
      padding:16px 18px;border-radius:16px;background:#fff;border:1px solid var(--line)
    }
    .article strong{display:block;margin-bottom:6px}
    .article span{color:var(--muted);font-size:13px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    .field.full{grid-column:1 / -1}
    label{font-size:14px;font-weight:700;color:#25314d}
    input,select,textarea{
      width:100%;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--text);
      padding:13px 14px;font:inherit;outline:none;transition:.2s ease
    }
    input:focus,select:focus,textarea:focus{border-color:rgba(75,111,255,.6);box-shadow:0 0 0 4px rgba(75,111,255,.08)}
    textarea{min-height:120px;resize:vertical}
    .submit-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:4px}
    .note{color:var(--muted);font-size:13px;line-height:1.7}
    .footer{
      margin-top:10px;padding:24px 0 30px;border-top:1px solid var(--line);background:rgba(248,250,253,.95)
    }
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px;align-items:start}
    .footer h3{margin:0 0 12px;font-size:18px}
    .footer p,.footer a,.footer li{color:var(--muted);line-height:1.8;font-size:14px}
    .footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
    .footer .links{display:flex;flex-wrap:wrap;gap:10px}
    .footer .links a{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line)}
    .subfooter{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-top:18px;margin-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
    .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:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:var(--shadow);font-weight:900
    }
    .customer-float{
      position:fixed;left:16px;bottom:16px;z-index:40;background:#fff;border:1px solid var(--line);
      border-radius:18px;padding:10px;box-shadow:var(--shadow);display:flex;gap:10px;align-items:center
    }
    .customer-float img{width:74px;height:74px;object-fit:cover;border-radius:12px;border:1px solid var(--line)}
    .customer-float .txt{font-size:12px;color:var(--muted);line-height:1.6;max-width:120px}
    .reveal{opacity:0;transform:translateY(16px);transition:.55s ease}
    .reveal.show{opacity:1;transform:translateY(0)}
    .mobile-menu{display:none}
    .section-card{padding:18px}
    .table-note{margin-top:10px;color:var(--muted);font-size:13px}
    @media (max-width: 980px){
      .hero-grid,.rating-box,.footer-grid,.grid-4,.grid-3,.reviews,.grid-2,.form-grid{grid-template-columns:1fr}
      .hero-main{min-height:auto}
      .nav-links,.nav-cta{display:none}
      .menu-btn{display:inline-grid;place-items:center}
      .mobile-menu{display:none;padding:0 0 14px}
      .mobile-menu.open{display:block}
      .mobile-menu a{display:block;padding:12px 0;border-top:1px solid rgba(220,229,242,.8);color:var(--text)}
      .hero-points{grid-template-columns:1fr}
      .customer-float{display:none}
    }