:root{
      --bg:#f7f8fc;
      --bg2:#eef5ff;
      --card:#ffffff;
      --text:#132238;
      --muted:#5d6b84;
      --line:#dce5f2;
      --primary:#1f66ff;
      --primary2:#13c2c2;
      --accent:#ff8a00;
      --shadow:0 18px 48px rgba(22, 42, 88, .10);
      --radius:22px;
      --max:1200px;
    }
    *{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(31,102,255,.14), transparent 28%),
        radial-gradient(circle at 85% 8%, rgba(19,194,194,.12), transparent 22%),
        linear-gradient(180deg, #fbfcff 0%, #f6f8fd 45%, #f5f7fb 100%);
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--max));margin:0 auto}
    header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:saturate(160%) blur(14px);
      background:rgba(247,248,252,.82);
      border-bottom:1px solid rgba(220,229,242,.8);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      padding:12px 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;border:1px solid var(--line);box-shadow:0 8px 20px rgba(31,102,255,.08)}
    .brand strong{display:block;font-size:16px;line-height:1.2}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
    .nav-toggle{display:none}
    .nav-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
    .nav-links a{font-size:14px;color:#2a3850;padding:8px 10px;border-radius:999px;transition:.25s}
    .nav-links a:hover{background:#eaf1ff;color:var(--primary)}
    .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;transition:.25s;cursor:pointer;white-space:nowrap
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),#5b8cff);color:#fff;box-shadow:0 12px 26px rgba(31,102,255,.26)}
    .btn-secondary{background:#fff;color:var(--primary);border-color:#cfe0ff}
    .btn:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(22,42,88,.12)}
    .hero{padding:34px 0 18px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}
    .hero-main{
      background:linear-gradient(135deg,#ffffff 0%, #f7fbff 52%, #eef6ff 100%);
      border:1px solid rgba(207,224,255,.9);border-radius:28px;padding:34px;box-shadow:var(--shadow);position:relative;overflow:hidden
    }
    .hero-main:before,.hero-main:after{
      content:"";position:absolute;border-radius:50%;background:radial-gradient(circle, rgba(31,102,255,.12), rgba(31,102,255,0) 68%)
    }
    .hero-main:before{width:240px;height:240px;right:-80px;top:-90px}
    .hero-main:after{width:180px;height:180px;left:-70px;bottom:-60px;background:radial-gradient(circle, rgba(19,194,194,.10), rgba(19,194,194,0) 68%)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:#edf4ff;color:#2156d6;font-weight:700;font-size:13px}
    h1{font-size:clamp(30px,5vw,52px);line-height:1.08;margin:16px 0 14px}
    .hero p{margin:0;color:var(--muted);font-size:16px;max-width:58ch}
    .hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}
    .mini{
      background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:18px;padding:14px;min-height:92px
    }
    .mini b{display:block;font-size:18px}
    .mini span{color:var(--muted);font-size:13px}
    .hero-side{
      display:grid;gap:14px;align-content:start
    }
    .side-card{
      background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:24px;padding:20px;box-shadow:var(--shadow)
    }
    .side-card h3{margin:0 0 10px;font-size:18px}
    .side-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}
    .side-list li{display:flex;justify-content:space-between;gap:10px;color:#32435f;font-size:14px;padding:10px 12px;background:#f7faff;border-radius:14px}
    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(22px,3vw,32px)}
    .section-head p{margin:0;color:var(--muted);max-width:68ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .card{
      background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 12px 30px rgba(22,42,88,.06);transition:.25s
    }
    .card:hover{transform:translateY(-3px);box-shadow:0 18px 36px rgba(22,42,88,.10)}
    .stat .num{font-size:28px;font-weight:800;color:var(--primary);line-height:1}
    .stat p{margin:10px 0 0;color:var(--muted)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:10px 14px;background:#eef4ff;border:1px solid #d8e5ff;border-radius:999px;font-size:13px;color:#21406f}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .steps{counter-reset:s}
    .step{position:relative;padding-left:58px}
    .step:before{
      counter-increment:s;content:counter(s);
      position:absolute;left:18px;top:18px;width:28px;height:28px;border-radius:50%;
      display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),#63a3ff);color:#fff;font-weight:800
    }
    .table-wrap{overflow:auto;border-radius:22px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:14px 16px;border-bottom:1px solid #edf1f7;text-align:left;vertical-align:top}
    th{background:#f3f7ff;color:#233552;font-size:14px}
    td{color:#31435f;font-size:14px}
    .check{color:#0f9d58;font-weight:700}
    .highlight{background:#f8fbff}
    .rating{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
    .stars{color:#ffad19;font-size:20px;letter-spacing:2px}
    details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 18px;box-shadow:0 8px 24px rgba(22,42,88,.05)}
    details+details{margin-top:12px}
    summary{cursor:pointer;font-weight:700;color:#21324d}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";float:right;color:var(--primary);font-weight:900}
    details[open] summary:after{content:"−"}
    .reviews .card{display:flex;flex-direction:column;gap:12px}
    .quote{font-size:15px;color:#33435d}
    .review-meta{display:flex;justify-content:space-between;gap:10px;align-items:center;color:var(--muted);font-size:13px}
    .article-list{display:grid;gap:12px}
    .article{
      display:flex;justify-content:space-between;gap:14px;align-items:center;padding:16px 18px;border-radius:18px;
      background:#fff;border:1px solid var(--line)
    }
    .article b{display:block;margin-bottom:4px}
    .article span{color:var(--muted);font-size:13px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .form-grid .full{grid-column:1/-1}
    input,select,textarea{
      width:100%;padding:13px 14px;border-radius:14px;border:1px solid #cfdaf0;background:#fff;color:var(--text);
      font:inherit;outline:none;transition:.2s
    }
    textarea{min-height:118px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#7cabff;box-shadow:0 0 0 4px rgba(31,102,255,.10)}
    .form-note{color:var(--muted);font-size:13px;margin-top:10px}
    footer{
      margin-top:18px;background:#132238;color:#eaf1ff;border-top:1px solid rgba(255,255,255,.06)
    }
    footer a{color:#b9d0ff}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .9fr;gap:16px;padding:28px 0}
    .footer-grid .card{background:rgba(255,255,255,.03);border-color:rgba(255,255,255,.08);box-shadow:none}
    .footer-grid p,.footer-grid li{color:#d6e2f2}
    .footer-grid ul{margin:0;padding-left:18px}
    .copyright{padding:14px 0;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:#c8d8ec}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .floating a,.floating button{
      width:48px;height:48px;border:none;border-radius:16px;display:grid;place-items:center;cursor:pointer;
      background:linear-gradient(135deg,var(--primary),#54a0ff);color:#fff;box-shadow:0 14px 30px rgba(31,102,255,.24)
    }
    .floating .top{background:linear-gradient(135deg,#14b8a6,#22c55e)}
    .reveal{opacity:0;transform:translateY(14px);transition:.6s ease}
    .reveal.show{opacity:1;transform:none}
    .table-cards{display:none}
    .service-net{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
    .service-net div{padding:14px;border-radius:16px;background:#fff;border:1px solid var(--line);text-align:center;color:#34445d}
    .muted{color:var(--muted)}
    .columns-2{columns:2;column-gap:18px}
    .columns-2 p{break-inside:avoid}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.split,.footer-grid,.service-net{grid-template-columns:1fr 1fr}
      .hero-points{grid-template-columns:1fr}
      .columns-2{columns:1}
    }
    @media (max-width: 760px){
      .nav{flex-wrap:wrap}
      .nav-toggle{display:inline-flex}
      .nav-links{display:none;width:100%;padding:10px 0 0}
      .nav-links.open{display:flex;flex-direction:column;align-items:flex-start;gap:8px}
      .nav-actions{width:100%;justify-content:space-between}
      .hero{padding-top:18px}
      .hero-grid,.grid-4,.grid-3,.split,.footer-grid,.service-net,.form-grid{grid-template-columns:1fr}
      .hero-main{padding:24px}
      .table-wrap table{display:none}
      .table-cards{display:grid;gap:12px}
      .table-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px}
      .table-card b{display:block;margin-bottom:8px}
      .table-card div{display:grid;gap:6px;color:#32435f;font-size:14px}
    }