:root{
      --bg:#f6f8fc;
      --bg2:#eef5ff;
      --card:#ffffff;
      --text:#17304b;
      --muted:#5d6b7a;
      --line:#dbe5f2;
      --primary:#2f7bff;
      --primary2:#18b7a6;
      --accent:#ff8a3d;
      --shadow:0 18px 50px rgba(35, 71, 126, .10);
      --shadow2:0 10px 24px rgba(35, 71, 126, .12);
      --radius:20px;
      --radius2:28px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(47,123,255,.10), transparent 28%),
        radial-gradient(circle at top right, rgba(24,183,166,.12), transparent 26%),
        linear-gradient(180deg, #ffffff 0%, var(--bg) 38%, #f9fbff 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky; top:0; z-index:40;
      backdrop-filter: blur(16px);
      background: rgba(247,250,255,.82);
      border-bottom:1px solid rgba(219,229,242,.8);
    }
    .nav{
      display:flex; align-items:center; justify-content:space-between; gap:16px;
      min-height:76px;
    }
    .brand{
      display:flex; align-items:center; gap:12px; min-width:0;
    }
    .brand .logo-wrap{
      width:44px; height:44px; border-radius:14px; overflow:hidden; background:#fff; border:1px solid var(--line); box-shadow:var(--shadow2);
      display:flex; align-items:center; justify-content:center; flex:0 0 auto;
    }
    .brand .brand-text{min-width:0}
    .brand strong{display:block; font-size:18px; letter-spacing:.4px}
    .brand span{display:block; font-size:12px; color:var(--muted); margin-top:2px}
    .nav-toggle{
      display:none; width:44px; height:44px; border:1px solid var(--line); border-radius:14px; background:#fff; color:var(--text);
    }
    .nav-links{
      display:flex; align-items:center; gap:8px; flex-wrap:wrap; justify-content:flex-end;
    }
    .nav-links a{
      padding:10px 12px; border-radius:999px; color:var(--muted); font-size:14px;
      transition:.22s ease;
    }
    .nav-links a:hover,.nav-links a.active{color:var(--text); background:#eef5ff}
    .nav-cta{
      display:flex; align-items:center; gap:10px; flex:0 0 auto;
    }
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      border:1px solid transparent; border-radius:14px; padding:12px 16px; font-weight:600;
      transition:.22s ease; cursor:pointer; white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),#5a9bff); color:#fff; box-shadow:0 14px 30px rgba(47,123,255,.24)}
    .btn-primary:hover{transform:translateY(-2px); box-shadow:0 18px 36px rgba(47,123,255,.30)}
    .btn-ghost{background:#fff; color:var(--text); border-color:var(--line)}
    .btn-ghost:hover{transform:translateY(-2px); box-shadow:var(--shadow2)}
    .hero{
      padding:28px 0 18px;
    }
    .hero-grid{
      display:grid; grid-template-columns:1.22fr .78fr; gap:18px; align-items:stretch;
    }
    .hero-main,.hero-side,.section-card,.panel,.review,.faq-item,.article-card,.case-card,.pricing-card,.timeline-card,.contact-card{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(219,229,242,.95);
      box-shadow:var(--shadow);
      border-radius:var(--radius2);
    }
    .hero-main{padding:30px}
    .eyebrow{
      display:inline-flex; align-items:center; gap:8px; padding:8px 12px; border-radius:999px;
      background:#eef7ff; color:#2459b9; font-weight:600; font-size:13px;
    }
    h1{font-size:clamp(30px, 4.6vw, 56px); line-height:1.06; margin:16px 0 14px; letter-spacing:-.6px}
    .hero p{margin:0; color:var(--muted); line-height:1.8}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:22px}
    .hero-points{
      display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:24px;
    }
    .point{
      padding:14px; border-radius:18px; background:linear-gradient(180deg,#f8fbff,#eef5ff); border:1px solid var(--line);
    }
    .point strong{display:block; font-size:18px}
    .point span{display:block; color:var(--muted); font-size:13px; margin-top:6px; line-height:1.5}
    .hero-side{padding:22px}
    .side-card{
      background:linear-gradient(180deg,#f8fbff,#ffffff);
      border:1px solid var(--line);
      border-radius:18px;
      padding:16px;
    }
    .side-title{display:flex; align-items:center; justify-content:space-between; gap:10px; margin-bottom:12px}
    .side-title strong{font-size:16px}
    .badge{padding:6px 10px; border-radius:999px; background:#eaf9f7; color:#157a70; font-size:12px; font-weight:700}
    .model-cloud{display:flex; flex-wrap:wrap; gap:8px}
    .tag{
      padding:8px 10px; border-radius:999px; background:#fff; border:1px solid var(--line); color:#29445f; font-size:13px;
    }
    .hero-stat{
      margin-top:14px; display:grid; grid-template-columns:repeat(2,1fr); gap:12px;
    }
    .stat{
      padding:14px; border-radius:18px; background:linear-gradient(135deg,#fff,#f2f7ff); border:1px solid var(--line);
    }
    .stat b{display:block; font-size:20px}
    .stat span{display:block; color:var(--muted); margin-top:5px; font-size:13px}
    section{padding:18px 0}
    .section-card{padding:24px}
    .section-head{
      display:flex; align-items:end; justify-content:space-between; gap:14px; margin-bottom:18px;
    }
    .section-head h2{margin:0; font-size:28px}
    .section-head p{margin:0; color:var(--muted); line-height:1.7; max-width:720px}
    .grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
    .grid-2{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    .mini-card,.service-card,.case-card,.review,.faq-item,.article-card,.pricing-card,.timeline-card,.contact-card,.panel{
      padding:18px;
    }
    .mini-card:hover,.service-card:hover,.case-card:hover,.review:hover,.article-card:hover,.pricing-card:hover,.timeline-card:hover{
      transform:translateY(-3px);
      transition:.22s ease;
      box-shadow:var(--shadow2);
    }
    .icon{
      width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg,#eaf3ff,#dff8f3); color:#2660c2; font-weight:800; margin-bottom:12px;
    }
    .mini-card h3,.service-card h3,.case-card h3,.review h3,.article-card h3,.pricing-card h3,.timeline-card h3,.contact-card h3{margin:0 0 10px; font-size:18px}
    .mini-card p,.service-card p,.case-card p,.review p,.article-card p,.pricing-card p,.timeline-card p,.contact-card p{margin:0; color:var(--muted); line-height:1.75}
    .list{
      margin:12px 0 0; padding:0; list-style:none; display:grid; gap:10px;
    }
    .list li{display:flex; gap:10px; align-items:flex-start; color:var(--text); line-height:1.6}
    .dot{width:9px;height:9px;border-radius:50%; background:linear-gradient(135deg,var(--primary),var(--primary2)); margin-top:8px; flex:0 0 auto}
    .table-wrap{overflow:auto; border-radius:18px; border:1px solid var(--line); background:#fff}
    table{width:100%; border-collapse:collapse; min-width:780px}
    th,td{padding:14px 16px; text-align:left; border-bottom:1px solid #e7eef7; vertical-align:top}
    th{background:#f4f8ff; color:#214160; font-size:14px}
    td{color:#29445f; font-size:14px; line-height:1.65}
    .rating{
      display:flex; flex-wrap:wrap; gap:12px; align-items:center;
      padding:16px; border-radius:18px; background:linear-gradient(135deg,#f5fbff,#eef9f7); border:1px solid var(--line);
      margin-bottom:14px;
    }
    .stars{color:#ffb400; font-size:20px; letter-spacing:2px}
    .rating strong{font-size:18px}
    .accordion{display:grid; gap:12px}
    .faq-item{padding:0; overflow:hidden}
    .faq-q{
      width:100%; border:0; background:transparent; color:var(--text); padding:18px; display:flex; align-items:center; justify-content:space-between; gap:14px; text-align:left; cursor:pointer; font-size:16px; font-weight:700;
    }
    .faq-a{max-height:0; overflow:hidden; transition:max-height .28s ease; padding:0 18px}
    .faq-item.open .faq-a{max-height:180px; padding-bottom:18px}
    .faq-a p{margin:0; color:var(--muted); line-height:1.75}
    .articles{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
    .article-card .meta{font-size:12px; color:#6b7c8d; margin-bottom:10px}
    .reviews{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
    .review .role{display:inline-flex; padding:6px 10px; border-radius:999px; background:#eef5ff; color:#2459b9; font-size:12px; margin-bottom:12px}
    .timeline{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
    .timeline-card .step{
      display:inline-flex; width:36px; height:36px; border-radius:12px; background:linear-gradient(135deg,var(--primary),#64afff); color:#fff; align-items:center; justify-content:center; font-weight:800; margin-bottom:12px;
    }
    .contact-grid{display:grid; grid-template-columns:1.05fr .95fr; gap:14px}
    .form{
      display:grid; gap:12px
    }
    .field{display:grid; gap:8px}
    label{font-size:14px; font-weight:700}
    input,select,textarea{
      width:100%; border:1px solid var(--line); background:#fff; color:var(--text);
      border-radius:14px; padding:13px 14px; font:inherit; outline:none;
    }
    textarea{min-height:124px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#88b5ff; box-shadow:0 0 0 4px rgba(47,123,255,.10)}
    .submit-row{display:flex; flex-wrap:wrap; gap:12px; align-items:center}
    .footer{
      padding:24px 0 18px;
      margin-top:8px;
      background:#eef4fb;
      border-top:1px solid var(--line);
      color:#23415d;
    }
    .footer a{color:#234f9b}
    .footer-grid{display:grid; grid-template-columns:1.2fr .8fr; gap:18px}
    .footer small{color:#57708a}
    .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)}
    .float-bar{
      position:fixed; right:16px; bottom:16px; z-index:50;
      display:grid; gap:10px;
    }
    .float-btn{
      width:52px; height:52px; border-radius:18px; display:grid; place-items:center;
      background:linear-gradient(135deg,var(--primary),#6ea8ff); color:#fff; box-shadow:0 16px 28px rgba(47,123,255,.26); border:0;
    }
    .service-wrap{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
    .service-card{position:relative; overflow:hidden}
    .service-card:before{
      content:""; position:absolute; inset:auto -20px -24px auto; width:90px; height:90px; border-radius:50%;
      background:radial-gradient(circle, rgba(47,123,255,.16), transparent 70%);
    }
    .split{display:grid; grid-template-columns:1fr 1fr; gap:14px}
    .price-list{display:grid; gap:10px; margin-top:10px}
    .price-row{display:flex; justify-content:space-between; gap:12px; padding:11px 0; border-bottom:1px dashed #e2eaf4; color:#2a4660}
    .sticky-note{
      padding:16px; border-radius:18px; background:linear-gradient(135deg,#fff7ec,#fffdf8); border:1px solid #ffe2bf;
    }
    .anchor{scroll-margin-top:92px}
    .menu-open .nav-links{display:flex}
    .top-pills{display:flex; flex-wrap:wrap; gap:8px; margin-top:18px}
    .top-pills span{padding:7px 10px; border-radius:999px; background:#fff; border:1px solid var(--line); color:#4b6278; font-size:13px}
    @media (max-width: 1080px){
      .hero-grid,.contact-grid,.footer-grid,.grid-4,.grid-3,.reviews,.articles,.timeline,.service-wrap,.split{grid-template-columns:1fr 1fr}
      .hero-points{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .nav{min-height:66px}
      .nav-toggle{display:inline-grid; place-items:center}
      .nav-links{
        display:none; position:absolute; left:16px; right:16px; top:76px;
        background:#fff; border:1px solid var(--line); border-radius:18px; padding:12px; box-shadow:var(--shadow);
      }
      .nav{position:relative}
      .nav-links a{width:100%; border-radius:12px}
      .nav-cta{display:none}
      .hero{padding-top:18px}
      .hero-main,.hero-side,.section-card{padding:18px}
      .hero-grid,.contact-grid,.footer-grid,.grid-4,.grid-3,.grid-2,.reviews,.articles,.timeline,.service-wrap,.split{grid-template-columns:1fr}
      .section-head{flex-direction:column; align-items:flex-start}
      .footer-links{gap:8px}
      .btn{width:100%}
      .hero-actions{display:grid}
      h1{font-size:clamp(28px, 9vw, 42px)}
    }
    .reveal{opacity:0; transform:translateY(18px); transition:.55s ease}
    .reveal.show{opacity:1; transform:none}