:root{
      --bg:#f6f8fc;
      --bg2:#eef4ff;
      --card:#ffffff;
      --text:#162033;
      --muted:#5f6b85;
      --line:#dbe3f1;
      --primary:#2563eb;
      --primary2:#7c3aed;
      --accent:#ff7a59;
      --accent2:#14b8a6;
      --shadow:0 18px 40px rgba(26, 49, 102, .10);
      --shadow2:0 10px 24px rgba(37, 99, 235, .10);
      --radius:20px;
      --container:1160px;
    }
    *{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,.12), transparent 28%),
        radial-gradient(circle at top right, rgba(124,58,237,.10), transparent 24%),
        linear-gradient(180deg, #ffffff 0%, var(--bg) 42%, #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:50;
      backdrop-filter:saturate(180%) blur(12px);
      background:rgba(246,248,252,.86);
      border-bottom:1px solid rgba(219,227,241,.8);
    }
    .nav{
      display:flex; align-items:center; justify-content:space-between; gap:16px;
      min-height:74px;
    }
    .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:16px; line-height:1.1}
    .brand span{display:block; font-size:12px; color:var(--muted); margin-top:3px}
    .nav-toggle{display:none; border:1px solid var(--line); background:#fff; color:var(--text); border-radius:12px; padding:10px 12px}
    .nav-links{display:flex; align-items:center; gap:18px; flex-wrap:wrap; justify-content:flex-end}
    .nav-links a{font-size:14px; color:var(--muted); padding:8px 0}
    .nav-links a:hover{color:var(--primary)}
    .home-btn{display:inline-flex; align-items:center; justify-content:center; padding:11px 16px; border-radius:999px; background:linear-gradient(135deg,var(--primary),var(--primary2)); color:#fff; box-shadow:var(--shadow2); font-weight:600}
    .hero{padding:38px 0 22px}
    .hero-grid{display:grid; grid-template-columns:1.2fr .8fr; gap:24px; align-items:stretch}
    .hero-main{
      position:relative; overflow:hidden;
      background:linear-gradient(135deg, #ffffff 0%, #f7fbff 55%, #eef3ff 100%);
      border:1px solid rgba(219,227,241,.9); border-radius:28px; box-shadow:var(--shadow); padding:34px;
    }
    .hero-main::before,.hero-main::after{
      content:""; position:absolute; border-radius:999px; pointer-events:none;
      background:radial-gradient(circle, rgba(37,99,235,.18), rgba(37,99,235,0) 68%);
      animation: float 8s ease-in-out infinite;
    }
    .hero-main::before{width:180px;height:180px; right:-45px; top:-35px}
    .hero-main::after{width:220px;height:220px; right:40px; bottom:-120px; animation-delay:-3s}
    .eyebrow{display:inline-flex; align-items:center; gap:8px; padding:8px 12px; border-radius:999px; background:#eff6ff; color:#1d4ed8; font-size:13px; font-weight:600}
    h1{font-size:clamp(30px, 5vw, 52px); line-height:1.08; margin:16px 0 14px; letter-spacing:-.02em}
    .lead{font-size:17px; line-height:1.8; color:var(--muted); margin:0 0 22px; max-width:54ch}
    .hero-actions{display:flex; gap:12px; flex-wrap:wrap; margin:22px 0 26px}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      min-height:46px; padding:0 18px; border-radius:14px; border:1px solid transparent;
      font-weight:700; transition:.25s ease; cursor:pointer;
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2)); color:#fff; box-shadow:var(--shadow2)}
    .btn-secondary{background:#fff; border-color:var(--line); color:var(--text)}
    .btn:hover{transform:translateY(-2px); box-shadow:0 16px 28px rgba(27,55,120,.12)}
    .hero-points{display:grid; grid-template-columns:repeat(3,1fr); gap:12px}
    .mini-card{
      background:rgba(255,255,255,.86); border:1px solid rgba(219,227,241,.9); border-radius:18px;
      padding:14px 16px; box-shadow:0 8px 22px rgba(27,55,120,.06)
    }
    .mini-card b{display:block; font-size:18px; margin-bottom:5px}
    .mini-card span{font-size:13px; color:var(--muted); line-height:1.5}
    .hero-side{
      display:grid; gap:14px;
      grid-template-rows:auto 1fr;
    }
    .side-card{
      background:linear-gradient(180deg, #ffffff 0%, #f8fbff 100%); border:1px solid var(--line);
      border-radius:24px; box-shadow:var(--shadow); padding:22px;
    }
    .side-card h3,.section-head h2{margin:0 0 12px; font-size:24px}
    .side-card p,.section-text{margin:0; color:var(--muted); line-height:1.8}
    .metrics{
      display:grid; grid-template-columns:repeat(2,1fr); gap:12px; margin-top:16px
    }
    .metric{
      background:#f7faff; border:1px solid #e3ebf8; border-radius:18px; padding:14px
    }
    .metric strong{display:block; font-size:24px; color:#0f172a}
    .metric span{font-size:13px; color:var(--muted)}
    .section{padding:18px 0}
    .section-head{display:flex; justify-content:space-between; align-items:flex-end; gap:14px; margin-bottom:18px}
    .section-head h2{font-size:30px}
    .section-tag{display:inline-flex; padding:7px 12px; border-radius:999px; background:#eef4ff; color:#1d4ed8; font-size:13px; font-weight:600}
    .grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:16px}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .card{
      background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
      box-shadow:0 8px 24px rgba(22,32,51,.05); padding:22px; transition:.25s ease;
    }
    .card:hover{transform:translateY(-4px); box-shadow:var(--shadow)}
    .card h3{margin:0 0 10px; font-size:18px}
    .card p,.card li{color:var(--muted); line-height:1.75}
    .icon{
      width:44px;height:44px;border-radius:14px; display:grid; place-items:center;
      background:linear-gradient(135deg, rgba(37,99,235,.12), rgba(124,58,237,.12));
      color:var(--primary); margin-bottom:14px; font-size:20px; font-weight:800;
    }
    .pill-row{display:flex; flex-wrap:wrap; gap:10px}
    .pill{padding:9px 12px; background:#f3f7ff; border:1px solid #e3ebf8; border-radius:999px; font-size:13px; color:#314062}
    .highlight{
      background:linear-gradient(135deg, #f0f7ff, #f9f3ff);
      border:1px solid rgba(124,58,237,.14);
    }
    .steps{display:grid; grid-template-columns:repeat(4,1fr); gap:16px}
    .step{
      position:relative; padding:22px; background:#fff; border:1px solid var(--line); border-radius:22px;
    }
    .step .num{display:inline-flex; width:34px; height:34px; border-radius:999px; align-items:center; justify-content:center; background:#eff6ff; color:#1d4ed8; font-weight:800; margin-bottom:12px}
    .table-wrap{overflow-x:auto; border:1px solid var(--line); border-radius:22px; background:#fff; box-shadow:var(--shadow)}
    table{width:100%; border-collapse:collapse; min-width:840px}
    th,td{padding:16px 18px; border-bottom:1px solid #e8eef8; text-align:left; vertical-align:top; font-size:14px}
    th{background:#f7faff; color:#1f2937; font-size:14px}
    tr:last-child td{border-bottom:none}
    .score{
      display:flex; gap:16px; flex-wrap:wrap; align-items:center; margin-top:16px;
    }
    .score-box{
      min-width:240px; flex:1; background:linear-gradient(135deg,#fff,#f4f8ff); border:1px solid var(--line); border-radius:22px; padding:22px
    }
    .stars{color:#f59e0b; font-size:20px; letter-spacing:2px}
    .score-num{font-size:42px; font-weight:900; color:#111827; line-height:1}
    .faq details{
      background:#fff; border:1px solid var(--line); border-radius:18px; padding:16px 18px; box-shadow:0 8px 20px rgba(22,32,51,.04)
    }
    .faq details+details{margin-top:12px}
    .faq summary{cursor:pointer; font-weight:700; list-style:none}
    .faq summary::-webkit-details-marker{display:none}
    .faq p{margin:12px 0 0; color:var(--muted); line-height:1.8}
    .reviews .card{height:100%}
    .review-meta{display:flex; align-items:center; justify-content:space-between; gap:10px; margin-bottom:12px}
    .avatar{width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;display:grid;place-items:center;font-weight:800}
    .review-role{font-size:13px;color:var(--muted)}
    .timeline{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .timeline .card{position:relative}
    .timeline .card::before{
      content:""; position:absolute; top:22px; left:22px; width:12px; height:12px; border-radius:999px; background:var(--primary);
      box-shadow:0 0 0 6px rgba(37,99,235,.10);
    }
    .timeline .card{padding-top:40px}
    .articles{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .article a{color:var(--primary); font-weight:700}
    .form-wrap{display:grid; grid-template-columns:1.05fr .95fr; gap:16px}
    form{display:grid; gap:12px}
    input,select,textarea{
      width:100%; border:1px solid #d7e0ef; border-radius:14px; background:#fff; padding:13px 14px;
      font:inherit; color:var(--text); outline:none;
    }
    textarea{min-height:128px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(37,99,235,.55); box-shadow:0 0 0 4px rgba(37,99,235,.08)}
    .footer{
      margin-top:18px; padding:28px 0 24px; background:#f3f7fd; border-top:1px solid #dbe3f1; color:#20304d
    }
    .footer a{color:#173ea6}
    .footer-grid{display:grid; grid-template-columns:1.15fr .85fr .95fr; gap:18px}
    .footer small{color:#5e6a84; line-height:1.8}
    .qrcode{
      width:138px; border-radius:18px; border:1px solid var(--line); overflow:hidden; background:#fff; box-shadow:var(--shadow)
    }
    .floating{
      position:fixed; right:16px; bottom:16px; z-index:55; display:flex; flex-direction:column; gap:10px;
    }
    .float-btn{
      display:inline-flex; align-items:center; justify-content:center; min-width:54px; min-height:54px; padding:0 16px;
      border-radius:999px; background:linear-gradient(135deg,var(--primary),var(--primary2)); color:#fff; box-shadow:var(--shadow2);
      font-weight:700;
    }
    .backtop{background:#fff; color:var(--text); border:1px solid var(--line)}
    .anchor-line{display:flex; gap:10px; flex-wrap:wrap}
    .service-map{display:grid; grid-template-columns:repeat(2,1fr); gap:12px}
    .service-map .card{padding:18px}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag-cloud span{padding:8px 12px; border-radius:999px; background:#fff; border:1px solid #e2e8f5; color:#42516f; font-size:13px}
    .comparison-badges{display:flex; flex-wrap:wrap; gap:10px; margin-top:16px}
    .comparison-badges span{padding:9px 12px; border-radius:12px; background:#eef6ff; color:#1741a6; font-size:13px; font-weight:600}
    .mobile-only{display:none}
    .reveal{opacity:0; transform:translateY(18px); transition:.6s ease}
    .reveal.show{opacity:1; transform:none}
    @keyframes float{50%{transform:translateY(10px)}}
    @media (max-width: 980px){
      .hero-grid,.form-wrap,.footer-grid,.grid-4,.grid-3,.steps,.timeline,.articles{grid-template-columns:1fr 1fr}
      .hero-points{grid-template-columns:1fr}
      .service-map{grid-template-columns:1fr}
    }
    @media (max-width: 720px){
      .nav-toggle{display:inline-flex}
      .nav-links{
        display:none; position:absolute; left:16px; right:16px; top:74px; flex-direction:column; align-items:flex-start;
        padding:14px; background:#fff; border:1px solid var(--line); border-radius:18px; box-shadow:var(--shadow)
      }
      .nav-links.open{display:flex}
      .hero{padding-top:22px}
      .hero-grid,.form-wrap,.footer-grid,.grid-4,.grid-3,.steps,.timeline,.articles{grid-template-columns:1fr}
      .hero-main,.side-card,.card{padding:18px}
      h1{font-size:31px}
      .section-head{flex-direction:column; align-items:flex-start}
      .floating{right:12px; bottom:12px}
      .mobile-only{display:block}
      .desktop-only{display:none}
    }