:root{
      --bg:#f6f8fc;
      --panel:#ffffff;
      --panel-2:#f3f7ff;
      --text:#1f2a37;
      --muted:#5f6b7a;
      --line:#dce4f2;
      --primary:#2563eb;
      --primary-2:#7c3aed;
      --accent:#ea580c;
      --green:#0f9d58;
      --shadow:0 18px 50px rgba(31,42,55,.08);
      --radius:22px;
      --radius-sm:16px;
      --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(37,99,235,.10), transparent 30%),
        radial-gradient(circle at top right, rgba(124,58,237,.09), transparent 25%),
        linear-gradient(180deg,#f8fbff 0%, #f4f7fb 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px,var(--container));margin:0 auto}
    header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:saturate(170%) blur(16px);
      background:rgba(246,248,252,.84);
      border-bottom:1px solid rgba(220,228,242,.7);
    }
    .topbar{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: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-wrap{display:flex;align-items:center;gap:14px}
    nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
    nav a{font-size:14px;color:#334155;padding:8px 0;position:relative}
    nav a:after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:linear-gradient(90deg,var(--primary),var(--primary-2));transition:.25s}
    nav a:hover:after{width:100%}
    .btn,button,.ghost{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:0;border-radius:999px;cursor:pointer;transition:.25s ease;
      font-weight:700;letter-spacing:.2px;
    }
    .btn{padding:12px 18px;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 10px 24px rgba(37,99,235,.22)}
    .btn:hover{transform:translateY(-1px);box-shadow:0 16px 28px rgba(37,99,235,.28)}
    .ghost{padding:11px 16px;background:#fff;color:var(--text);border:1px solid var(--line)}
    .ghost:hover{transform:translateY(-1px);border-color:#bfd0ee}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);padding:10px 12px;border-radius:14px}
    .hero{padding:34px 0 18px}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.card,.section-card,.quote,.faq-item,.form-card,.table-card,.case-card,.review-card,.info-card{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(220,228,242,.9);
      box-shadow:var(--shadow);
      border-radius:var(--radius);
    }
    .hero-main{padding:34px;position:relative;overflow:hidden}
    .hero-main:before,.hero-main:after{
      content:"";position:absolute;border-radius:999px;filter:blur(0);
      background:linear-gradient(135deg,rgba(37,99,235,.12),rgba(124,58,237,.10),rgba(234,88,12,.08));
      z-index:0;
    }
    .hero-main:before{width:220px;height:220px;right:-90px;top:-70px}
    .hero-main:after{width:160px;height:160px;left:-60px;bottom:-50px}
    .hero-content{position:relative;z-index:1;max-width:760px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#eef4ff;color:#2146ad;border:1px solid #d8e4ff;padding:8px 12px;border-radius:999px;font-size:13px;font-weight:700}
    h1{margin:16px 0 12px;font-size:clamp(32px,5vw,54px);line-height:1.06;letter-spacing:-.03em}
    .hero p{margin:0;color:var(--muted);font-size:16px;line-height:1.9;max-width:62ch}
    .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:22px}
    .pill{padding:14px 16px;border-radius:18px;background:#f8fbff;border:1px solid var(--line)}
    .pill strong{display:block;font-size:15px;margin-bottom:4px}
    .pill span{font-size:13px;color:var(--muted);line-height:1.6}
    .hero-side{padding:22px;display:grid;gap:14px}
    .side-stat{padding:18px;border-radius:18px;background:linear-gradient(180deg,#f8fbff,#eef4ff);border:1px solid #dae4f7}
    .side-stat strong{font-size:28px;display:block}
    .side-stat span{font-size:13px;color:var(--muted)}
    .side-links{display:grid;gap:10px}
    .side-links a{padding:13px 14px;border-radius:16px;background:#fff;border:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;font-weight:600}
    section{padding:18px 0}
    .section-head{display:flex;justify-content:space-between;gap:14px;align-items:end;margin-bottom:16px}
    .section-head h2{margin:0;font-size:clamp(24px,3vw,34px)}
    .section-head p{margin:0;color:var(--muted);max-width:62ch;line-height:1.8}
    .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}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .card,.section-card,.case-card,.review-card,.info-card{padding:20px}
    .stat strong{display:block;font-size:28px;margin-bottom:6px}
    .stat span{color:var(--muted);font-size:14px;line-height:1.7}
    .feature h3,.case-card h3,.review-card h3,.info-card h3{margin:0 0 8px;font-size:18px}
    .feature p,.case-card p,.review-card p,.info-card p{margin:0;color:var(--muted);line-height:1.8;font-size:14px}
    .tag-row,.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#f6f9ff;border:1px solid var(--line);font-size:13px;color:#334155}
    .timeline{display:grid;gap:12px}
    .timeline-item{display:grid;grid-template-columns:88px 1fr;gap:14px;align-items:start;padding:16px 18px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .timeline-item strong{display:block;color:var(--primary)}
    .timeline-item span{color:var(--muted);line-height:1.7;font-size:14px}
    .table-card{padding:14px;overflow:hidden}
    table{width:100%;border-collapse:separate;border-spacing:0}
    th,td{padding:14px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:14px}
    th{background:#f7faff;color:#334155;white-space:nowrap}
    tr:last-child td{border-bottom:0}
    .table-wrap{overflow:auto}
    .highlight{color:var(--primary);font-weight:800}
    .good{color:var(--green);font-weight:700}
    .bad{color:#b91c1c;font-weight:700}
    .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step{padding:20px;border-radius:20px;background:linear-gradient(180deg,#fff,#f7faff);border:1px solid var(--line)}
    .step .num{display:inline-flex;width:34px;height:34px;border-radius:12px;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;font-weight:800;margin-bottom:12px}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .quote{padding:18px}
    .quote strong{display:block;margin-bottom:8px}
    .quote p{margin:0;color:var(--muted);line-height:1.8}
    .review-meta{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-top:14px;color:var(--muted);font-size:13px}
    .stars{color:#f59e0b;font-size:16px;letter-spacing:1px}
    .faq-list{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;text-align:left;background:transparent;border:0;padding:18px 18px;font-size:16px;font-weight:800;color:var(--text);display:flex;justify-content:space-between;gap:12px;align-items:center}
    .faq-a{padding:0 18px 18px;color:var(--muted);line-height:1.85;display:none}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q .icon{transform:rotate(45deg)}
    .icon{transition:.25s}
    .form-card{padding:22px}
    form{display:grid;gap:14px}
    .form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .field{display:grid;gap:8px}
    label{font-size:14px;font-weight:700;color:#334155}
    input,select,textarea{
      width:100%;border:1px solid #cfd9e8;border-radius:14px;background:#fff;padding:13px 14px;font:inherit;color:var(--text);outline:none;
      transition:.2s;box-shadow:0 0 0 0 rgba(37,99,235,0)
    }
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#8fb0f5;box-shadow:0 0 0 4px rgba(37,99,235,.10)}
    .submit-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}
    .small{font-size:13px;color:var(--muted);line-height:1.7}
    .article-list{display:grid;gap:12px}
    .article{
      display:flex;justify-content:space-between;gap:16px;align-items:center;
      padding:16px 18px;border-radius:18px;background:#fff;border:1px solid var(--line)
    }
    .article strong{display:block;margin-bottom:6px}
    .article span{display:block;color:var(--muted);font-size:13px;line-height:1.7}
    .article em{font-style:normal;color:var(--primary);font-weight:700;white-space:nowrap}
    footer{
      margin-top:14px;
      background:#f3f6fb;
      border-top:1px solid var(--line);
      color:#243041;
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px;padding:26px 0}
    .footer-grid h3{margin:0 0 12px;font-size:18px}
    .footer-grid p,.footer-grid a,.footer-grid li{color:#425064;line-height:1.85;font-size:14px}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 12px;background:#fff;border:1px solid var(--line);border-radius:999px}
    .copyright{padding:14px 0 22px;border-top:1px solid var(--line);font-size:13px;color:#556070}
    .floating{
      position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px
    }
    .float-btn{padding:12px 14px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 14px 28px rgba(37,99,235,.22);font-weight:800}
    .float-btn.alt{background:#fff;color:var(--text);border:1px solid var(--line)}
    .top-btn{display:none}
    .scroll-reveal{opacity:0;transform:translateY(16px);transition:.55s ease}
    .scroll-reveal.show{opacity:1;transform:none}
    .mobile-nav{display:none}
    .media-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .media-row img{border-radius:18px;border:1px solid var(--line);background:#fff}
    .service-net{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .price{display:grid;gap:12px}
    .price .item{padding:16px 18px;border-radius:18px;background:#fff;border:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;align-items:center}
    .price .item strong{font-size:15px}
    .price .item span{color:var(--muted);font-size:13px}
    .anchor-title{scroll-margin-top:92px}
    @media (max-width: 1080px){
      .hero-grid,.grid-4,.steps,.service-net,.footer-grid{grid-template-columns:1fr 1fr}
      .grid-3,.split{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .topbar{padding:12px 0}
      nav,.nav-actions{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-nav{display:none;padding:0 0 14px}
      .mobile-nav.open{display:block}
      .mobile-nav .panel{display:grid;gap:10px;padding:14px;border-radius:18px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
      .mobile-nav a{padding:10px 0;border-bottom:1px dashed #e3ebf6}
      .mobile-nav a:last-child{border-bottom:0}
      .hero{padding-top:18px}
      .hero-main{padding:24px}
      .hero-points,.grid-4,.steps,.grid-2,.form-row,.footer-grid,.hero-grid,.service-net,.media-row{grid-template-columns:1fr}
      .timeline-item{grid-template-columns:1fr}
      .article{align-items:flex-start;flex-direction:column}
      .submit-row{align-items:flex-start}
      .floating{right:12px;bottom:12px}
      .top-btn{display:inline-flex}
    }