:root{
      --bg:#f6f8fc;
      --bg2:#eef4ff;
      --card:#ffffff;
      --text:#172033;
      --muted:#5d6b85;
      --line:#dce5f2;
      --pri:#3563ff;
      --pri2:#7c4dff;
      --accent:#ff7d59;
      --accent2:#24b47e;
      --shadow:0 18px 50px rgba(23,32,51,.09);
      --radius:22px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,var(--bg2),#fff 18%,var(--bg) 100%);color:var(--text);line-height:1.65}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:50;background:rgba(246,248,252,.82);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,229,242,.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;padding:4px;border:1px solid var(--line)}
    .brand strong{display:block;font-size:16px;line-height:1.2}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:var(--muted);padding:8px 10px;border-radius:999px;transition:.25s}
    .nav-links a:hover,.nav-links a.active{color:var(--text);background:#fff;box-shadow:0 8px 22px rgba(23,32,51,.07)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:14px;border:1px solid transparent;font-weight:700;transition:.25s;cursor:pointer;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--pri),var(--pri2));color:#fff;box-shadow:0 12px 24px rgba(53,99,255,.24)}
    .btn-secondary{background:#fff;color:var(--text);border-color:var(--line)}
    .btn:hover{transform:translateY(-2px)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 12px}
    main{overflow:hidden}
    section{padding:72px 0}
    .hero{padding:30px 0 64px;position:relative}
    .hero:before,.hero:after{content:"";position:absolute;border-radius:999px;filter:blur(2px);pointer-events:none}
    .hero:before{width:280px;height:280px;background:radial-gradient(circle,rgba(53,99,255,.18),transparent 68%);top:-40px;right:-70px}
    .hero:after{width:220px;height:220px;background:radial-gradient(circle,rgba(124,77,255,.16),transparent 70%);left:-60px;bottom:20px}
    .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:28px;align-items:stretch}
    .hero-copy,.hero-panel,.card,.faq-item,.testimonial,.compare,.form-box,.article,.service,.stat,.price-item,.timeline-item,.case{background:rgba(255,255,255,.88);border:1px solid rgba(220,229,242,.9);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-copy{padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:linear-gradient(135deg,rgba(53,99,255,.12),rgba(124,77,255,.12));color:#2944af;font-size:13px;font-weight:700}
    h1{margin:16px 0 14px;font-size:clamp(34px,5vw,56px);line-height:1.08;letter-spacing:-.02em}
    .lead{margin:0;color:var(--muted);font-size:16px;max-width:58ch}
    .hero-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:24px 0}
    .hero-points div{padding:14px 14px 14px 16px;border-radius:16px;background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid var(--line);color:var(--text);font-size:14px}
    .hero-points strong{display:block;font-size:15px;margin-bottom:4px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;color:var(--muted);font-size:13px}
    .hero-meta span{padding:8px 12px;background:#fff;border:1px solid var(--line);border-radius:999px}
    .hero-panel{padding:22px;display:grid;gap:14px}
    .mini-visual{border-radius:20px;background:linear-gradient(135deg,#1f2d50,#4666ff 45%,#a45bff 100%);padding:18px;color:#fff;min-height:200px;position:relative;overflow:hidden}
    .mini-visual:before,.mini-visual:after{content:"";position:absolute;border-radius:50%}
    .mini-visual:before{width:180px;height:180px;background:rgba(255,255,255,.14);right:-36px;top:-36px}
    .mini-visual:after{width:120px;height:120px;background:rgba(255,255,255,.08);left:-20px;bottom:-10px}
    .mini-title{font-size:18px;font-weight:800;margin:0 0 12px}
    .mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;position:relative;z-index:1}
    .mini-grid div{padding:12px;border-radius:14px;background:rgba(255,255,255,.12);backdrop-filter:blur(6px);font-size:13px}
    .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .stat{padding:22px}
    .stat strong{display:block;font-size:28px;line-height:1.1;margin-bottom:8px}
    .stat span{color:var(--muted);font-size:14px}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
    .section-head h2{margin:0;font-size:clamp(24px,3vw,36px);line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:68ch}
    .cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .card{padding:24px}
    .card .icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(53,99,255,.12),rgba(124,77,255,.12));margin-bottom:14px;font-size:20px}
    .card h3{margin:0 0 8px;font-size:18px}
    .card p,.card li{margin:0;color:var(--muted);font-size:14px}
    .list{padding-left:18px;margin:12px 0 0}
    .split{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:start}
    .steps,.timeline{display:grid;gap:14px}
    .step,.timeline-item{padding:18px 18px 18px 20px;border-left:4px solid transparent;background:#fff}
    .step{border-color:rgba(53,99,255,.35)}
    .step strong,.timeline-item strong{display:block;margin-bottom:6px}
    .step p,.timeline-item p{margin:0;color:var(--muted);font-size:14px}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:16px 14px;border-bottom:1px solid var(--line);text-align:left;font-size:14px;vertical-align:top}
    th{background:#f7f9ff;color:#24304b}
    td{color:var(--muted)}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:rgba(36,180,126,.1);color:#177453;font-size:12px;font-weight:700}
    .compare-top{display:grid;grid-template-columns:1fr 280px;gap:18px;align-items:stretch}
    .rating{padding:24px;background:linear-gradient(135deg,#fff,rgba(53,99,255,.06));border:1px solid var(--line);border-radius:var(--radius)}
    .rating strong{display:block;font-size:34px;line-height:1;margin:10px 0}
    .pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .price-item{padding:22px}
    .price-item .tag{display:inline-block;margin-bottom:12px;color:#2944af;background:rgba(53,99,255,.1);padding:6px 10px;border-radius:999px;font-size:12px;font-weight:700}
    .article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .article{padding:22px}
    .article time{display:block;color:#7a8499;font-size:12px;margin-bottom:10px}
    .article h3{margin:0 0 8px;font-size:17px}
    .article p{margin:0;color:var(--muted);font-size:14px}
    .faq{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;background:#fff;border:0;padding:18px 20px;font-size:16px;font-weight:700;color:var(--text);cursor:pointer;text-align:left}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 20px;color:var(--muted)}
    .faq-item.open .faq-a{max-height:180px;padding-bottom:18px}
    .testimonials{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .testimonial{padding:22px}
    .testimonial .role{color:#2944af;font-size:13px;font-weight:700;margin-bottom:10px}
    .testimonial p{margin:0;color:var(--muted);font-size:14px}
    .tags{display:flex;flex-wrap:wrap;gap:10px}
    .tags span{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--text)}
    .service-net{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .service{padding:18px}
    .service strong{display:block;margin-bottom:6px}
    .service p{margin:0;color:var(--muted);font-size:14px}
    .form-box{padding:24px}
    form{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .field{display:grid;gap:8px}
    .field.full{grid-column:1/-1}
    label{font-size:14px;font-weight:700}
    input,select,textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid var(--line);background:#fff;color:var(--text);font:inherit;outline:none}
    textarea{min-height:130px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(53,99,255,.55);box-shadow:0 0 0 4px rgba(53,99,255,.08)}
    .footer-links{display:flex;flex-wrap:wrap;gap:12px}
    footer{padding:28px 0 34px;border-top:1px solid var(--line);background:#fff;color:var(--text)}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}
    .footer-small{color:var(--muted);font-size:13px}
    .floating{position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px}
    .float-btn{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,var(--pri),var(--pri2));color:#fff;box-shadow:0 14px 28px rgba(53,99,255,.28);border:0;cursor:pointer}
    .mobile-only{display:none}
    .reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
    .reveal.show{opacity:1;transform:none}
    .img-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .img-grid img{width:100%;border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow);background:#fff}
    @media (max-width: 1024px){
      .hero-grid,.stats,.cards,.split,.compare-top,.pricing,.article-list,.testimonials,.service-net,.footer-grid{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .mobile-only{display:inline-flex}
      .nav.open .nav-links{display:flex;position:absolute;left:0;right:0;top:100%;background:rgba(246,248,252,.98);padding:14px 16px;border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start}
      .nav.open .nav-actions{display:none}
      .hero-points{grid-template-columns:1fr}
      form{grid-template-columns:1fr}
      .service-net{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 640px){
      section{padding:58px 0}
      .hero{padding-top:14px}
      .hero-copy,.hero-panel,.card,.form-box,.article,.testimonial,.service,.stat,.price-item,.rating{padding:18px}
      .container{width:min(var(--max),calc(100% - 22px))}
      .hero-actions{flex-direction:column}
      .hero-actions .btn{width:100%}
      .service-net{grid-template-columns:1fr}
      .mini-grid{grid-template-columns:1fr}
    }