:root{
      --bg0:#f6f7fb;
      --bg1:#ffffff;
      --ink:#0f172a;
      --muted:#52607a;
      --muted2:#6b7a96;
      --line:rgba(15,23,42,.10);
      --card:#ffffff;
      --shadow:0 10px 30px rgba(15,23,42,.08);
      --shadow2:0 8px 20px rgba(15,23,42,.10);
      --brand:#0ea5e9;
      --brand2:#22c55e;
      --brand3:#7c3aed;
      --accent:#00b3a4;
      --warn:#f59e0b;
      --danger:#ef4444;
      --radius:18px;
      --radius2:24px;
      --max:1120px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, "PingFang SC","Microsoft YaHei","Noto Sans SC", Arial, "Helvetica Neue", sans-serif;
      color:var(--ink);
      background:
        radial-gradient(1200px 800px at 15% -10%, rgba(14,165,233,.18), transparent 55%),
        radial-gradient(900px 650px at 88% 0%, rgba(124,58,237,.14), transparent 55%),
        radial-gradient(900px 650px at 70% 110%, rgba(34,197,94,.10), transparent 55%),
        linear-gradient(180deg, #f7f8ff, var(--bg0) 45%, #f8fafc 100%);
    }

    a{color:inherit; text-decoration:none}
    .container{
      max-width:var(--max);
      margin:0 auto;
      padding:0 18px;
    }

    .skip{
      position:absolute; left:-999px; top:auto; width:1px; height:1px; overflow:hidden;
    }
    .skip:focus{
      left:16px; top:16px; width:auto; height:auto; background:#fff; z-index:9999;
      padding:10px 12px; border:1px solid var(--line); border-radius:10px;
      box-shadow: var(--shadow2);
    }

    header{
      position:sticky; top:0; z-index:50;
      backdrop-filter: blur(10px);
      background: rgba(247,248,255,.72);
      border-bottom: 1px solid rgba(15,23,42,.08);
    }
    .nav-wrap{
      display:flex; align-items:center; justify-content:space-between; gap:16px;
      padding:12px 0;
    }
    .brand{
      display:flex; align-items:center; gap:12px; min-width: 220px;
    }
    .ai-page-logo{
      width:42px; height:42px; border-radius:12px; object-fit:cover;
      box-shadow: 0 10px 25px rgba(14,165,233,.22);
      background:#fff;
      padding:6px;
    }
    .brand-title{
      display:flex; flex-direction:column; line-height:1.05;
    }
    .brand-title strong{
      font-size:14px; letter-spacing:.2px;
    }
    .brand-title span{
      font-size:12px; color:var(--muted2);
      margin-top:4px;
      white-space:nowrap;
    }

    nav{
      display:flex; align-items:center; gap:12px;
    }
    .nav-links{
      display:flex; align-items:center; gap:14px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav-links a{
      font-size:13px; color:var(--muted);
      padding:8px 10px; border-radius:12px;
      border:1px solid transparent;
      transition: background .2s ease, border-color .2s ease, transform .2s ease;
    }
    .nav-links a:hover{
      background: rgba(14,165,233,.08);
      border-color: rgba(14,165,233,.20);
      color: #0b2a3b;
      transform: translateY(-1px);
    }

    .nav-cta{
      display:flex; align-items:center; gap:10px;
      justify-content:flex-end;
    }

    .btn{
      border:1px solid rgba(15,23,42,.12);
      background:#fff;
      color:#0b1b33;
      padding:10px 14px;
      border-radius:14px;
      font-weight:650;
      font-size:13px;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease;
      display:inline-flex; align-items:center; gap:10px;
      user-select:none;
      white-space:nowrap;
    }
    .btn:hover{
      transform: translateY(-1px);
      box-shadow: 0 14px 30px rgba(15,23,42,.10);
      border-color: rgba(14,165,233,.35);
    }
    .btn-primary{
      background: linear-gradient(135deg, rgba(14,165,233,1), rgba(34,197,94,1));
      border-color: rgba(0,0,0,0);
      color:#062019;
      box-shadow: 0 18px 36px rgba(14,165,233,.18);
    }
    .btn-primary:hover{
      box-shadow: 0 24px 46px rgba(14,165,233,.24);
    }
    .btn-ghost{
      background: rgba(255,255,255,.75);
    }
    .icon-dot{
      width:10px; height:10px; border-radius:50%;
      background: rgba(255,255,255,.85);
      box-shadow: 0 0 0 3px rgba(255,255,255,.35);
    }
    .btn-primary .icon-dot{background:#062019}

    .mobile-toggle{
      display:none;
      width:44px; height:44px; border-radius:14px;
      border:1px solid rgba(15,23,42,.12);
      background:#fff;
      align-items:center; justify-content:center;
      transition: transform .18s ease, box-shadow .18s ease;
    }
    .mobile-toggle:hover{
      transform: translateY(-1px);
      box-shadow: 0 14px 26px rgba(15,23,42,.10);
    }
    .burger{
      width:18px; height:14px; position:relative;
    }
    .burger span{
      position:absolute; left:0; right:0; height:2px; border-radius:2px;
      background: rgba(15,23,42,.75);
      transition: transform .2s ease, top .2s ease, opacity .2s ease;
    }
    .burger span:nth-child(1){top:1px}
    .burger span:nth-child(2){top:6px}
    .burger span:nth-child(3){top:11px}
    .mobile-toggle[aria-expanded="true"] .burger span:nth-child(1){top:6px; transform: rotate(45deg)}
    .mobile-toggle[aria-expanded="true"] .burger span:nth-child(2){opacity:0}
    .mobile-toggle[aria-expanded="true"] .burger span:nth-child(3){top:6px; transform: rotate(-45deg)}

    .mobile-panel{
      display:none;
      padding: 0 0 14px 0;
    }
    .mobile-panel .panel-inner{
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.78);
      border-radius: 18px;
      padding: 10px;
      box-shadow: 0 18px 40px rgba(15,23,42,.08);
    }
    .mobile-panel .panel-links{
      display:grid; grid-template-columns: 1fr 1fr; gap:8px;
      padding:8px;
    }
    .mobile-panel .panel-links a{
      display:block;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.08);
      background:#fff;
      color:var(--muted);
      font-size:13px;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .mobile-panel .panel-links a:hover{
      transform: translateY(-1px);
      box-shadow: 0 12px 24px rgba(15,23,42,.08);
      border-color: rgba(14,165,233,.30);
      color:#0b2a3b;
    }
    .mobile-panel .panel-ctas{
      display:flex; gap:10px; padding: 8px;
      flex-wrap:wrap;
    }

    main{padding: 18px 0 34px}
    .hero{
      padding: 22px 0 10px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.25fr .75fr;
      gap:16px;
      align-items:stretch;
    }
    .hero-card{
      background:
        radial-gradient(1200px 500px at 20% 0%, rgba(14,165,233,.18), transparent 45%),
        radial-gradient(900px 450px at 90% 20%, rgba(124,58,237,.14), transparent 50%),
        linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.62));
      border:1px solid rgba(15,23,42,.10);
      border-radius: var(--radius2);
      box-shadow: var(--shadow);
      padding: 26px;
      position:relative;
      overflow:hidden;
    }
    .hero-card:before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(400px 240px at 15% 15%, rgba(14,165,233,.35), transparent 60%),
        radial-gradient(420px 260px at 75% 30%, rgba(124,58,237,.28), transparent 60%),
        radial-gradient(350px 220px at 60% 95%, rgba(34,197,94,.22), transparent 60%);
      opacity:.45;
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      display:flex; flex-direction:column; gap:14px;
      min-height: 330px;
    }
    .eyebrow{
      display:flex; align-items:center; gap:10px; flex-wrap:wrap;
      color:var(--muted);
      font-size:13px;
    }
    .pill{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.75);
      box-shadow: 0 10px 25px rgba(15,23,42,.06);
    }
    .pill i{
      width:10px; height:10px; border-radius:50%;
      background: linear-gradient(135deg, var(--brand), var(--brand2));
      box-shadow: 0 0 0 4px rgba(14,165,233,.15);
      display:inline-block;
    }
    h1{
      margin:0;
      font-size: 34px;
      line-height:1.15;
      letter-spacing: -0.4px;
    }
    .hero-sub{
      margin:0;
      color: var(--muted);
      font-size: 15px;
      line-height:1.7;
      max-width: 60ch;
    }
    .hero-actions{
      display:flex; gap:12px; flex-wrap:wrap;
      margin-top: 6px;
    }
    .btn-secondary{
      background: rgba(255,255,255,.7);
    }
    .btn-secondary:hover{
      border-color: rgba(34,197,94,.35);
    }

    .hero-meta{
      display:flex; gap:10px; flex-wrap:wrap;
      margin-top:auto;
      padding-top: 14px;
      border-top: 1px dashed rgba(15,23,42,.14);
    }
    .meta-item{
      flex: 1 1 170px;
      min-width: 160px;
      display:flex; align-items:flex-start; gap:10px;
      padding: 10px 12px;
      border-radius: 16px;
      background: rgba(255,255,255,.55);
      border:1px solid rgba(15,23,42,.08);
    }
    .meta-icon{
      width:34px; height:34px; border-radius:12px;
      display:flex; align-items:center; justify-content:center;
      background: rgba(14,165,233,.14);
      border:1px solid rgba(14,165,233,.22);
      color:#0b2a3b;
      flex:0 0 auto;
    }
    .meta-item:nth-child(2) .meta-icon{
      background: rgba(34,197,94,.14);
      border-color: rgba(34,197,94,.22);
    }
    .meta-item:nth-child(3) .meta-icon{
      background: rgba(124,58,237,.14);
      border-color: rgba(124,58,237,.20);
    }
    .meta-item strong{
      display:block;
      font-size:14px;
      line-height:1.25;
    }
    .meta-item span{
      display:block;
      color: var(--muted);
      font-size:12.5px;
      margin-top:4px;
      line-height:1.4;
    }

    .hero-side{
      display:flex; flex-direction:column; gap:12px;
    }
    .side-card{
      background: rgba(255,255,255,.72);
      border:1px solid rgba(15,23,42,.10);
      border-radius: var(--radius);
      box-shadow: 0 10px 24px rgba(15,23,42,.07);
      padding: 16px;
      overflow:hidden;
      position:relative;
    }
    .side-card:after{
      content:"";
      position:absolute; right:-40px; top:-40px;
      width:140px; height:140px;
      background: radial-gradient(circle at 30% 30%, rgba(14,165,233,.35), transparent 62%);
      opacity:.9;
      pointer-events:none;
    }
    .side-title{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom:10px;
    }
    .side-title strong{
      font-size:14px;
      letter-spacing:.2px;
    }
    .spark{
      width:54px; height:22px;
      border-radius:999px;
      border:1px solid rgba(14,165,233,.20);
      background: rgba(14,165,233,.10);
      display:flex; align-items:center; justify-content:center;
      color:#0b2a3b;
      font-weight:700;
      font-size:12px;
    }
    .data-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
    }
    .kpi{
      border-radius: 16px;
      padding: 12px;
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.68);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .kpi:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 30px rgba(15,23,42,.10);
      border-color: rgba(14,165,233,.28);
    }
    .kpi b{
      display:block; font-size:18px; letter-spacing:-.2px;
    }
    .kpi em{
      display:block; font-style:normal; color:var(--muted);
      font-size:12.5px; margin-top:6px; line-height:1.35;
    }

    .side-list{
      display:flex; flex-direction:column; gap:10px;
      margin-top: 6px;
    }
    .side-li{
      display:flex; gap:10px; align-items:flex-start;
      padding: 12px;
      border-radius: 16px;
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.65);
      transition: transform .18s ease, box-shadow .18s ease;
    }
    .side-li:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 30px rgba(15,23,42,.08);
    }
    .badge{
      width:34px; height:34px; border-radius: 14px;
      display:flex; align-items:center; justify-content:center;
      border:1px solid rgba(34,197,94,.22);
      background: rgba(34,197,94,.12);
      flex:0 0 auto;
      color:#0b2a3b;
    }
    .side-li:nth-child(2) .badge{
      border-color: rgba(124,58,237,.22);
      background: rgba(124,58,237,.12);
    }
    .side-li:nth-child(3) .badge{
      border-color: rgba(245,158,11,.25);
      background: rgba(245,158,11,.14);
    }
    .side-li strong{
      display:block; font-size:13.5px;
    }
    .side-li span{
      display:block; color:var(--muted); font-size:12.5px; margin-top:4px; line-height:1.35;
    }

    .section{
      padding: 28px 0;
    }
    .section-head{
      display:flex; align-items:flex-end; justify-content:space-between; gap:16px;
      margin-bottom: 14px;
    }
    .section-head h2{
      margin:0;
      font-size: 22px;
      letter-spacing: -0.2px;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.7;
      max-width: 62ch;
    }

    .grid-3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    .grid-4{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap:12px;
    }
    .grid-2{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
    }

    .card{
      background: rgba(255,255,255,.75);
      border:1px solid rgba(15,23,42,.10);
      border-radius: var(--radius);
      box-shadow: 0 12px 26px rgba(15,23,42,.06);
      padding: 16px;
      position:relative;
      overflow:hidden;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .card:hover{
      transform: translateY(-2px);
      box-shadow: 0 22px 46px rgba(15,23,42,.10);
      border-color: rgba(14,165,233,.30);
    }

    .card .card-top{
      display:flex; align-items:flex-start; gap:12px;
      margin-bottom: 10px;
    }
    .card .avatar{
      width:42px; height:42px; border-radius:16px;
      background: linear-gradient(135deg, rgba(14,165,233,.16), rgba(34,197,94,.14));
      border:1px solid rgba(14,165,233,.22);
      display:flex; align-items:center; justify-content:center;
      color:#0b2a3b;
      flex:0 0 auto;
    }
    .card:nth-child(2) .avatar{ background: linear-gradient(135deg, rgba(124,58,237,.16), rgba(14,165,233,.12)); border-color: rgba(124,58,237,.22); }
    .card:nth-child(3) .avatar{ background: linear-gradient(135deg, rgba(34,197,94,.14), rgba(245,158,11,.12)); border-color: rgba(34,197,94,.22); }

    .card h3{
      margin:0;
      font-size:16px;
      letter-spacing:-.1px;
    }
    .card p{
      margin:0;
      color:var(--muted);
      font-size:13.5px;
      line-height:1.7;
    }

    .tag-row{
      display:flex; flex-wrap:wrap; gap:8px;
      margin-top: 12px;
    }
    .tag{
      font-size:12.5px;
      padding: 7px 10px;
      border-radius: 999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      color: var(--muted);
    }
    .tag strong{color:#0b2a3b}

    .timeline{
      display:grid;
      grid-template-columns: 1fr;
      gap:12px;
    }
    .step{
      display:flex; gap:12px; align-items:flex-start;
      padding: 14px;
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.75);
      box-shadow: 0 10px 22px rgba(15,23,42,.06);
    }
    .step .num{
      width:42px; height:42px; border-radius: 16px;
      background: rgba(14,165,233,.12);
      border:1px solid rgba(14,165,233,.22);
      display:flex; align-items:center; justify-content:center;
      font-weight:800;
      color:#0b2a3b;
      flex:0 0 auto;
    }
    .step:nth-child(2) .num{background: rgba(34,197,94,.12); border-color: rgba(34,197,94,.22);}
    .step:nth-child(3) .num{background: rgba(124,58,237,.12); border-color: rgba(124,58,237,.22);}
    .step:nth-child(4) .num{background: rgba(245,158,11,.14); border-color: rgba(245,158,11,.25);}
    .step:nth-child(5) .num{background: rgba(0,179,164,.12); border-color: rgba(0,179,164,.22);}

    .step h3{
      margin:0;
      font-size:15.5px;
    }
    .step p{
      margin:6px 0 0 0;
      color:var(--muted);
      font-size:13.5px;
      line-height:1.7;
    }

    .compare{
      overflow:hidden;
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.70);
      box-shadow: 0 18px 36px rgba(15,23,42,.06);
    }
    .compare-head{
      padding: 18px 18px 0 18px;
    }
    .compare-head .rating-row{
      display:flex; align-items:center; justify-content:space-between; gap:14px; flex-wrap:wrap;
      padding-bottom: 14px;
    }
    .rating-badge{
      display:flex; align-items:center; gap:12px;
    }
    .stars{
      font-size:20px;
      letter-spacing:2px;
      line-height:1;
      color:#f59e0b;
      text-shadow: 0 6px 16px rgba(245,158,11,.25);
    }
    .rating-badge .score{
      display:flex; flex-direction:column; line-height:1.1;
    }
    .rating-badge .score b{
      font-size:22px;
      letter-spacing:-.2px;
    }
    .rating-badge .score span{
      color:var(--muted);
      font-size:13px;
      margin-top:6px;
    }
    .compare-note{
      color:var(--muted);
      font-size:13.5px;
      line-height:1.6;
      margin:0;
      max-width: 56ch;
    }

    table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      margin-top: 8px;
      overflow:auto;
    }
    .compare table thead th{
      text-align:left;
      font-size:13px;
      color:#0b1b33;
      background: rgba(14,165,233,.10);
      border-bottom: 1px solid rgba(15,23,42,.10);
      padding: 14px 14px;
      white-space:nowrap;
    }
    .compare table tbody td{
      padding: 14px 14px;
      border-bottom: 1px solid rgba(15,23,42,.08);
      color: var(--muted);
      vertical-align:top;
      font-size:13.5px;
      line-height:1.6;
    }
    .compare table tbody tr:last-child td{border-bottom:0}
    .right-col{
      color: var(--ink) !important;
      font-weight:650;
    }
    .mark{
      display:inline-flex; align-items:center; gap:8px;
      padding:6px 10px;
      border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.70);
    }
    .mark i{
      width:10px; height:10px; border-radius:50%;
      background: linear-gradient(135deg, var(--brand), var(--brand2));
      box-shadow: 0 0 0 3px rgba(14,165,233,.16);
      display:inline-block;
    }

    .compare table tbody td .muted{color:var(--muted2); font-weight:500}
    .hcell{
      font-weight:800;
      color:#0b1b33 !important;
      white-space:nowrap;
    }

    .h-scroll{
      overflow:auto;
      -webkit-overflow-scrolling: touch;
    }
    .h-scroll::-webkit-scrollbar{height:10px}
    .h-scroll::-webkit-scrollbar-thumb{background: rgba(15,23,42,.12); border-radius: 999px}
    .h-scroll::-webkit-scrollbar-track{background: rgba(15,23,42,.05); border-radius: 999px}

    .two-col{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap:12px;
      align-items:start;
    }

    .list{
      display:flex; flex-direction:column; gap:10px;
    }
    .list-item{
      display:flex; align-items:flex-start; gap:12px;
      padding: 12px;
      border-radius: 16px;
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.68);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .list-item:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 36px rgba(15,23,42,.09);
      border-color: rgba(14,165,233,.26);
    }
    .check{
      width:30px; height:30px; border-radius: 12px;
      background: rgba(34,197,94,.12);
      border:1px solid rgba(34,197,94,.22);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      color:#0b2a3b;
      font-weight:900;
    }
    .list-item:nth-child(2) .check{background: rgba(14,165,233,.12); border-color: rgba(14,165,233,.22);}
    .list-item:nth-child(3) .check{background: rgba(124,58,237,.12); border-color: rgba(124,58,237,.22);}
    .list-item:nth-child(4) .check{background: rgba(245,158,11,.14); border-color: rgba(245,158,11,.25);}
    .list-item strong{
      display:block; font-size:14px;
    }
    .list-item span{
      display:block; color:var(--muted); font-size:13.2px;
      margin-top:4px; line-height:1.6;
    }

    .form{
      padding: 18px;
      background: rgba(255,255,255,.72);
      border:1px solid rgba(15,23,42,.10);
      border-radius: var(--radius2);
      box-shadow: 0 16px 34px rgba(15,23,42,.07);
    }
    form{
      display:flex; flex-direction:column; gap:12px;
    }
    label{
      font-size:13px;
      color:var(--muted);
      display:block;
      margin-bottom:8px;
    }
    .field{
      display:flex; flex-direction:column;
    }
    input, select, textarea{
      width:100%;
      padding:12px 12px;
      border-radius: 14px;
      border:1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.9);
      color: var(--ink);
      outline:none;
      transition: border-color .2s ease, box-shadow .2s ease;
      font-size:14px;
    }
    textarea{min-height: 120px; resize: vertical}
    input:focus, select:focus, textarea:focus{
      border-color: rgba(14,165,233,.45);
      box-shadow: 0 0 0 4px rgba(14,165,233,.16);
    }
    .form-actions{
      display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
      margin-top: 4px;
    }
    .fineprint{
      color:var(--muted2);
      font-size:12.5px;
      line-height:1.6;
      max-width: 46ch;
      margin:0;
    }

    .article-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap:12px;
      align-items:start;
    }
    .article-list{
      display:flex; flex-direction:column; gap:10px;
    }
    .article{
      display:flex; gap:12px; align-items:flex-start;
      padding: 12px;
      border-radius: 16px;
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.70);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .article:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 36px rgba(15,23,42,.09);
      border-color: rgba(14,165,233,.26);
    }
    .article .mark2{
      width:38px; height:38px; border-radius: 16px;
      display:flex; align-items:center; justify-content:center;
      background: rgba(14,165,233,.12);
      border:1px solid rgba(14,165,233,.22);
      flex:0 0 auto;
      font-weight:900;
      color:#0b2a3b;
    }
    .article:nth-child(2) .mark2{background: rgba(34,197,94,.12); border-color: rgba(34,197,94,.22);}
    .article:nth-child(3) .mark2{background: rgba(124,58,237,.12); border-color: rgba(124,58,237,.22);}
    .article h3{
      margin:0;
      font-size:14.5px;
      letter-spacing: -.1px;
    }
    .article p{
      margin:6px 0 0 0;
      color:var(--muted);
      font-size:13.2px;
      line-height:1.6;
    }
    .article a{
      margin-top:8px;
      display:inline-flex;
      align-items:center;
      gap:8px;
      font-size:13px;
      color:#0b2a3b;
      font-weight:700;
      padding:8px 10px;
      border-radius: 14px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.72);
      transition: transform .18s ease, box-shadow .18s ease;
    }
    .article a:hover{transform: translateY(-1px); box-shadow: 0 16px 30px rgba(15,23,42,.08)}

    .side-note{
      padding: 16px;
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.10);
      background:
        radial-gradient(600px 260px at 20% 0%, rgba(14,165,233,.16), transparent 56%),
        linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.62));
      box-shadow: 0 18px 36px rgba(15,23,42,.06);
    }
    .side-note h3{margin:0; font-size:16px}
    .side-note p{
      margin:10px 0 0 0;
      color:var(--muted);
      line-height:1.7;
      font-size:13.5px;
    }
    .network-grid{
      display:grid; grid-template-columns: 1fr 1fr;
      gap:10px;
      margin-top: 12px;
    }
    .net{
      padding: 12px;
      border-radius: 16px;
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.72);
    }
    .net b{display:block; font-size:14.5px}
    .net span{display:block; color:var(--muted); font-size:13px; margin-top:6px; line-height:1.6}

    .product-gallery{
      display:grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap:12px;
      margin-top: 12px;
    }
    .gal{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.72);
      padding: 14px;
      box-shadow: 0 14px 30px rgba(15,23,42,.06);
      transition: transform .18s ease, box-shadow .18s ease;
    }
    .gal:hover{transform: translateY(-2px); box-shadow: 0 22px 46px rgba(15,23,42,.10);}
    .gal h3{margin:0; font-size:15px}
    .gal p{margin:8px 0 0 0; color:var(--muted); font-size:13.3px; line-height:1.6}
    .gal ul{
      margin:10px 0 0 0; padding:0 0 0 18px;
      color:var(--muted);
      font-size:13.2px; line-height:1.7;
    }

    .reviews{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    .review{
      padding: 16px;
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.10);
      background:
        radial-gradient(500px 220px at 10% 0%, rgba(34,197,94,.12), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.64));
      box-shadow: 0 16px 36px rgba(15,23,42,.06);
      position:relative;
      overflow:hidden;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .review:hover{
      transform: translateY(-2px);
      box-shadow: 0 26px 56px rgba(15,23,42,.10);
      border-color: rgba(14,165,233,.28);
    }
    .review .top{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom: 10px;
    }
    .avatar2{
      width:42px; height:42px; border-radius: 16px;
      background: rgba(14,165,233,.12);
      border:1px solid rgba(14,165,233,.22);
      display:flex; align-items:center; justify-content:center;
      font-weight:900; color:#0b2a3b;
      flex:0 0 auto;
    }
    .review:nth-child(2) .avatar2{background: rgba(124,58,237,.12); border-color: rgba(124,58,237,.22);}
    .review:nth-child(3) .avatar2{background: rgba(245,158,11,.14); border-color: rgba(245,158,11,.25);}
    .review .role{
      display:flex; flex-direction:column; line-height:1.1;
      flex: 1 1 auto;
    }
    .review .role b{font-size:14.5px}
    .review .role span{color:var(--muted); font-size:12.8px; margin-top:5px}
    .stars2{color:#f59e0b; font-weight:900}
    .review p{
      margin:0;
      color:var(--muted);
      font-size:13.6px;
      line-height:1.8;
    }
    .review .quote{
      margin-top:12px;
      padding-top:12px;
      border-top: 1px solid rgba(15,23,42,.08);
      display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
    }
    .quote .metric{
      display:flex; gap:10px; align-items:center;
      color:#0b2a3b;
      font-weight:800;
      font-size:13.2px;
    }
    .metric i{
      width:10px; height:10px; border-radius:50%;
      background: linear-gradient(135deg, var(--brand), var(--brand2));
      box-shadow: 0 0 0 4px rgba(14,165,233,.16);
      display:inline-block;
    }

    .faq{
      display:flex; flex-direction:column; gap:10px;
    }
    details.faq-item{
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.75);
      box-shadow: 0 12px 26px rgba(15,23,42,.06);
      overflow:hidden;
    }
    details.faq-item[open]{
      border-color: rgba(14,165,233,.30);
      box-shadow: 0 20px 46px rgba(15,23,42,.10);
    }
    details.faq-item summary{
      cursor:pointer;
      padding: 16px 16px;
      list-style:none;
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      user-select:none;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    .q{
      font-weight:850;
      font-size:14.8px;
      letter-spacing:-.1px;
    }
    .chev{
      width:34px; height:34px; border-radius: 14px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.68);
      display:flex; align-items:center; justify-content:center;
      transition: transform .2s ease, border-color .2s ease;
      flex:0 0 auto;
    }
    details[open] .chev{
      transform: rotate(180deg);
      border-color: rgba(14,165,233,.30);
    }
    .a{
      padding: 0 16px 16px 16px;
      color: var(--muted);
      font-size:13.8px;
      line-height:1.8;
    }

    .tag-cloud{
      display:flex; flex-wrap:wrap; gap:10px;
      padding-top: 8px;
    }
    .cloud{
      border-radius: 999px;
      padding: 10px 12px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.72);
      color: var(--muted);
      font-size:13px;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      cursor:pointer;
      user-select:none;
    }
    .cloud:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 34px rgba(15,23,42,.08);
      border-color: rgba(14,165,233,.28);
      color:#0b2a3b;
    }

    .case-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      align-items:stretch;
    }
    .case{
      padding: 16px;
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.74);
      box-shadow: 0 18px 36px rgba(15,23,42,.06);
      display:flex; flex-direction:column; gap:10px;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      overflow:hidden;
      position:relative;
    }
    .case:hover{
      transform: translateY(-2px);
      box-shadow: 0 28px 60px rgba(15,23,42,.10);
      border-color: rgba(14,165,233,.28);
    }
    .case:before{
      content:"";
      position:absolute; inset:-1px;
      background:
        radial-gradient(420px 240px at 20% 0%, rgba(14,165,233,.16), transparent 60%),
        radial-gradient(420px 260px at 90% 40%, rgba(124,58,237,.12), transparent 60%);
      opacity:.55; pointer-events:none;
    }
    .case > *{position:relative}
    .case-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
    }
    .case h3{margin:0; font-size:16px}
    .case .pill2{
      border-radius: 999px;
      padding: 8px 12px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.66);
      color: var(--muted);
      font-size:12.8px;
      white-space:nowrap;
    }
    .case p{
      margin:0;
      color: var(--muted);
      font-size:13.6px;
      line-height:1.8;
    }
    .case ul{
      margin:0; padding:0 0 0 18px;
      color:var(--muted);
      font-size:13.4px;
      line-height:1.8;
    }
    .case .case-actions{
      margin-top:auto;
      display:flex; gap:10px; flex-wrap:wrap;
    }

    .price-band{
      display:grid; grid-template-columns: 1fr 1fr; gap:12px;
    }
    .price-card{
      padding: 16px;
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.10);
      background:
        radial-gradient(520px 220px at 0% 0%, rgba(245,158,11,.14), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.64));
      box-shadow: 0 18px 36px rgba(15,23,42,.06);
    }
    .price-card h3{margin:0; font-size:16px}
    .price-card p{margin:10px 0 0 0; color:var(--muted); font-size:13.5px; line-height:1.8}
    .price-row{
      display:flex; align-items:flex-end; gap:10px; flex-wrap:wrap;
      margin-top: 12px;
    }
    .price{
      font-size:32px; font-weight:950; letter-spacing:-1px;
    }
    .unit{
      color:var(--muted);
      font-size:13px;
      margin-bottom: 6px;
    }

    .footer{
      background:
        radial-gradient(900px 320px at 30% 0%, rgba(14,165,233,.16), transparent 60%),
        linear-gradient(180deg, rgba(255,255,255,.60), rgba(255,255,255,.70));
      border-top: 1px solid rgba(15,23,42,.08);
      padding: 24px 0 16px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap:14px;
      align-items:start;
    }
    .foot-brand{
      display:flex; align-items:flex-start; gap:12px;
    }
    .foot-brand img{
      width:46px; height:46px; border-radius:16px;
      padding:7px; background:#fff;
      border:1px solid rgba(15,23,42,.10);
      box-shadow: 0 16px 34px rgba(15,23,42,.08);
      object-fit:cover;
    }
    .foot-brand strong{
      display:block;
      font-size:15px;
      letter-spacing:-.1px;
    }
    .foot-brand span{
      display:block;
      margin-top:6px;
      color:var(--muted);
      font-size:13.2px;
      line-height:1.8;
    }
    .foot-links{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
      margin-top: 4px;
    }
    .foot-col{
      padding: 14px;
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.72);
    }
    .foot-col b{display:block; font-size:13.8px; margin-bottom:10px}
    .foot-col a{
      display:block;
      color: var(--muted);
      font-size:13.2px;
      padding: 8px 10px;
      border-radius: 12px;
      border:1px solid transparent;
      transition: background .2s ease, border-color .2s ease, transform .2s ease;
      margin-bottom: 6px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width: 100%;
    }
    .foot-col a:hover{
      background: rgba(14,165,233,.10);
      border-color: rgba(14,165,233,.22);
      color:#0b2a3b;
      transform: translateY(-1px);
    }
    .footer-bottom{
      display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
      margin-top: 14px;
      padding-top: 14px;
      border-top: 1px dashed rgba(15,23,42,.14);
      color: var(--muted2);
      font-size:12.8px;
    }
    .social-row{
      display:flex; align-items:center; gap:10px; flex-wrap:wrap;
    }
    .mini-link{
      padding: 10px 12px;
      border-radius: 14px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.72);
      color: var(--muted);
      font-weight:650;
      font-size:13px;
      transition: transform .18s ease, border-color .18s ease;
      white-space:nowrap;
    }
    .mini-link:hover{
      transform: translateY(-1px);
      border-color: rgba(14,165,233,.28);
      color:#0b2a3b;
    }

    .float-cta{
      position:fixed;
      right: 16px;
      bottom: 16px;
      z-index: 60;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-end;
    }
    .float-qrcode{
      width: 148px;
      padding: 12px;
      border-radius: 18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 22px 50px rgba(15,23,42,.12);
      display:none;
    }
    .float-qrcode .qr-title{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom:8px;
    }
    .float-qrcode b{font-size:13.5px}
    .qr-close{
      width:30px; height:30px; border-radius:12px;
      border:1px solid rgba(15,23,42,.10);
      background:#fff;
      cursor:pointer;
      transition: transform .15s ease;
    }
    .qr-close:hover{transform: translateY(-1px)}
    .float-qrcode img{
      width:100%;
      height:auto;
      border-radius: 12px;
      display:block;
      border:1px solid rgba(15,23,42,.10);
      background:#fff;
    }

    .float-btn{
      width: 52px; height: 52px; border-radius: 18px;
      border:1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.86);
      box-shadow: 0 18px 40px rgba(15,23,42,.10);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      position:relative;
      user-select:none;
    }
    .float-btn:hover{
      transform: translateY(-2px);
      border-color: rgba(14,165,233,.30);
      box-shadow: 0 26px 56px rgba(15,23,42,.14);
    }
    .float-btn .ring{
      position:absolute;
      inset:-6px;
      border-radius: 22px;
      border:1px solid rgba(14,165,233,.22);
      opacity:.0;
      transform: scale(.95);
      transition: opacity .2s ease, transform .2s ease;
      pointer-events:none;
    }
    .float-btn:hover .ring{
      opacity:1;
      transform: scale(1);
    }
    .float-btn svg{opacity:.9}
    .to-top{
      display:none;
      width: 52px; height: 52px; border-radius: 18px;
      border:1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.86);
      box-shadow: 0 18px 40px rgba(15,23,42,.10);
      cursor:pointer;
      align-items:center; justify-content:center;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .to-top:hover{
      transform: translateY(-2px);
      border-color: rgba(14,165,233,.30);
      box-shadow: 0 26px 56px rgba(15,23,42,.14);
    }

    .reveal{
      opacity:0;
      transform: translateY(10px);
      transition: opacity .6s ease, transform .6s ease;
    }
    .reveal.show{
      opacity:1;
      transform: translateY(0);
    }

    @media (max-width: 980px){
      .hero-grid{grid-template-columns: 1fr}
      .hero-inner{min-height: unset}
      .article-grid{grid-template-columns: 1fr}
      .grid-3{grid-template-columns: 1fr}
      .grid-4{grid-template-columns: 1fr 1fr}
      .reviews{grid-template-columns: 1fr}
      .two-col{grid-template-columns: 1fr}
      .case-grid{grid-template-columns: 1fr}
      .price-band{grid-template-columns: 1fr}
      .product-gallery{grid-template-columns: 1fr}
      .footer-grid{grid-template-columns: 1fr}
      .nav-links{display:none}
      .nav-cta{display:none}
      .mobile-toggle{display:flex}
      .mobile-panel{display:block}
      .mobile-panel[data-open="false"]{display:none}
    }
    @media (max-width: 520px){
      h1{font-size: 28px}
      .hero-card{padding:18px}
      .meta-item{min-width: 100%}
      .grid-4{grid-template-columns: 1fr}
      .network-grid{grid-template-columns: 1fr}
      .mobile-panel .panel-links{grid-template-columns: 1fr}
      .float-cta{right: 12px; bottom: 12px}
      .float-qrcode{width: 132px}
    }

    @media (prefers-reduced-motion: reduce){
      html{scroll-behavior:auto}
      .reveal{transition:none}
    }