:root{
      --bg:#f7f4ee;
      --bg2:#eef3fb;
      --card:#ffffff;
      --text:#1f2937;
      --muted:#667085;
      --line:#e6e8ef;
      --primary:#2b6df3;
      --primary2:#7c5cff;
      --accent:#ff8a4c;
      --shadow:0 18px 50px rgba(33, 50, 91, .10);
      --radius:20px;
      --max:1200px;
    }
    *{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(124,92,255,.10), transparent 28%),
        radial-gradient(circle at top right, rgba(43,109,243,.10), transparent 24%),
        linear-gradient(180deg, #fbfaf7 0%, var(--bg) 42%, #f8fbff 100%);
    }
    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:40;
      backdrop-filter:blur(14px);
      background:rgba(247,244,238,.78);
      border-bottom:1px solid rgba(230,232,239,.75);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      min-height:76px;padding:12px 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:1rem;line-height:1.1}
    .brand span{display:block;font-size:.82rem;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:.95rem;color:#374151;padding:8px 0;position:relative}
    .nav-links a:after{
      content:"";position:absolute;left:0;bottom:1px;width:0;height:2px;background:linear-gradient(90deg,var(--primary),var(--primary2));
      transition:.25s ease;
    }
    .nav-links a:hover:after,.nav-links a:focus:after{width:100%}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .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:all .25s ease;cursor:pointer;white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;box-shadow:0 10px 24px rgba(43,109,243,.22)}
    .btn-secondary{background:#fff;color:#20304a;border-color:var(--line)}
    .btn:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(32,48,74,.12)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px;color:#1f2937}
    .hero{padding:34px 0 18px}
    .hero-wrap{
      position:relative;overflow:hidden;border:1px solid rgba(230,232,239,.9);
      background:
        linear-gradient(135deg, rgba(255,255,255,.96), rgba(255,255,255,.84)),
        linear-gradient(135deg, rgba(43,109,243,.08), rgba(124,92,255,.10));
      border-radius:28px;box-shadow:var(--shadow);
      padding:34px;
    }
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:stretch}
    h1{margin:0;font-size:clamp(2rem,4vw,3.55rem);line-height:1.08;letter-spacing:-.03em}
    .hero p{margin:16px 0;color:var(--muted);font-size:1.02rem;line-height:1.8}
    .chips{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 22px}
    .chip{padding:9px 12px;border-radius:999px;background:#f4f7ff;border:1px solid #dfe7ff;color:#27406f;font-size:.9rem}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .hero-metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .metric{
      background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:20px;padding:18px;
      box-shadow:0 10px 26px rgba(37,57,92,.06)
    }
    .metric b{display:block;font-size:1.5rem;margin-bottom:6px}
    .metric span{color:var(--muted);font-size:.92rem;line-height:1.6}
    section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:1.55rem}
    .section-head p{margin:0;color:var(--muted);max-width:720px;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .card{
      background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:var(--radius);
      box-shadow:0 10px 28px rgba(30,46,82,.06);padding:20px;transition:transform .25s ease, box-shadow .25s ease;
    }
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(30,46,82,.10)}
    .card h3,.card h4{margin:0 0 10px}
    .card p{margin:0;color:var(--muted);line-height:1.8}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:10px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#31415f;font-size:.92rem}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
    .list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
    .list li{display:flex;gap:10px;align-items:flex-start;color:#334155;line-height:1.7}
    .list i{width:22px;height:22px;border-radius:999px;background:linear-gradient(135deg,var(--primary),var(--primary2));display:inline-flex;align-items:center;justify-content:center;color:#fff;font-style:normal;font-size:.8rem;flex:0 0 auto;margin-top:2px}
    .steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step{position:relative;padding-top:18px}
    .step:before{
      counter-increment:step;content:counter(step);display:inline-flex;align-items:center;justify-content:center;
      width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,#dfe9ff,#eef0ff);color:#20408f;font-weight:800;margin-bottom:12px
    }
    table{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden;border:1px solid var(--line);border-radius:20px;background:#fff}
    th,td{padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left;line-height:1.7}
    th{background:#f8fbff;color:#183153;font-size:.95rem}
    tr:last-child td{border-bottom:none}
    .table-wrap{overflow:auto;border-radius:20px}
    .faq{display:grid;gap:12px}
    details{
      background:#fff;border:1px solid var(--line);border-radius:18px;padding:0 18px;box-shadow:0 8px 20px rgba(30,46,82,.05)
    }
    summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:700;color:#1f2f47}
    summary::-webkit-details-marker{display:none}
    details p{padding:0 0 16px;margin:0;color:var(--muted);line-height:1.8}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review{position:relative}
    .review .role{color:#41506a;font-weight:700;margin-bottom:8px}
    .stars{color:#ffb400;letter-spacing:2px;margin-bottom:10px}
    .article-list{display:grid;gap:12px}
    .article-item{
      display:flex;justify-content:space-between;gap:14px;align-items:center;
      padding:15px 16px;border:1px solid var(--line);border-radius:16px;background:#fff
    }
    .article-item span{color:var(--muted);font-size:.92rem}
    .form{
      display:grid;grid-template-columns:repeat(2,1fr);gap:14px
    }
    .field{display:grid;gap:8px}
    .field.full{grid-column:1/-1}
    label{font-weight:700;color:#24324a}
    input,select,textarea{
      width:100%;border:1px solid #d8deea;border-radius:14px;background:#fff;padding:13px 14px;
      color:#1f2937;font:inherit;outline:none;transition:border-color .2s ease, box-shadow .2s ease
    }
    input:focus,select:focus,textarea:focus{border-color:#7b8ef5;box-shadow:0 0 0 4px rgba(123,142,245,.14)}
    textarea{min-height:120px;resize:vertical}
    .footer{
      padding:22px 0 30px;margin-top:8px;border-top:1px solid rgba(230,232,239,.9);
      background:rgba(255,255,255,.5)
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:16px}
    .footer a{color:#243b68}
    .small{color:var(--muted);line-height:1.8;font-size:.94rem}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:50;display:grid;gap:10px
    }
    .floating a,.floating button{
      width:48px;height:48px;border-radius:16px;border:1px solid var(--line);background:#fff;color:#20304a;
      box-shadow:0 12px 24px rgba(31,41,55,.12);display:inline-flex;align-items:center;justify-content:center;cursor:pointer
    }
    .scroll-top{display:none}
    .mobile-only{display:none}
    .reveal{opacity:0;transform:translateY(18px);transition:all .6s ease}
    .reveal.in{opacity:1;transform:none}
    .gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .gallery .card{padding:14px}
    .gallery img{width:100%;height:auto;border-radius:14px;aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line)}
    .header-badge{padding:8px 12px;border-radius:999px;background:linear-gradient(135deg,#eef4ff,#f3efff);border:1px solid #dfe5fb;color:#27406f;font-size:.86rem;font-weight:700}
    .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .price{border:1px solid var(--line);border-radius:22px;background:#fff;padding:20px;position:relative}
    .price strong{font-size:2rem;display:block;margin:6px 0;color:#17305b}
    .price ul{margin:0;padding-left:18px;color:var(--muted);line-height:1.9}
    .anchor{scroll-margin-top:96px}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-4,.two-col,.steps,.reviews,.footer-grid,.gallery,.price-grid{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .nav-cta .btn-secondary{display:none}
      .mobile-only{display:block}
      .form{grid-template-columns:1fr}
    }
    @media (max-width: 640px){
      .hero-wrap{padding:20px}
      .hero{padding-top:18px}
      .section-head{flex-direction:column;align-items:flex-start}
      .hero-metrics{grid-template-columns:1fr}
      .btn{width:100%}
      .hero-actions{display:grid;width:100%}
      .nav{min-height:68px}
      .brand strong{font-size:.98rem}
    }
    .mobile-panel{
      display:none;padding:0 0 14px
    }
    .mobile-panel.open{display:block}
    .mobile-panel .nav-links{
      display:grid;grid-template-columns:repeat(2,1fr);gap:8px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px
    }
    .mobile-panel .nav-links a{padding:10px 12px;background:#f8fbff;border-radius:12px}