:root{
      --bg0:#f6f7fb;
      --bg1:#ffffff;
      --text:#1f2937;
      --muted:#6b7280;
      --muted2:#93a0b3;
      --line:rgba(17,24,39,.10);
      --card:rgba(255,255,255,.85);
      --card2:#ffffff;
      --shadow:0 10px 30px rgba(17,24,39,.08);
      --shadow2:0 14px 45px rgba(17,24,39,.12);
      --radius:16px;
      --radius2:22px;
      --brand:#2563eb;
      --brand2:#0ea5e9;
      --brand3:#7c3aed;
      --brand4:#22c55e;
      --accent:#ff4d6d;
      --warn:#f59e0b;
      --focus:rgba(37,99,235,.18);
      --container:1120px;
      --gap:18px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
        "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
      color:var(--text);
      background:
        radial-gradient(900px 420px at 10% -10%, rgba(37,99,235,.16), transparent 55%),
        radial-gradient(700px 380px at 85% 0%, rgba(14,165,233,.14), transparent 55%),
        radial-gradient(900px 420px at 75% 30%, rgba(124,58,237,.10), transparent 55%),
        linear-gradient(180deg, #f7f8fe 0%, #fbfbff 35%, #f6f7fb 100%);
    }
    a{color:inherit; text-decoration:none}
    .container{
      width:100%;
      max-width:var(--container);
      margin:0 auto;
      padding:0 18px;
    }
    .skip{
      position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden;
    }
    .skip:focus{
      left:18px; top:18px; width:auto; height:auto; z-index:9999;
      background:#fff; padding:10px 12px; border-radius:12px; box-shadow:var(--shadow);
      outline:2px solid rgba(37,99,235,.35);
    }

    header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:saturate(160%) blur(10px);
      background: rgba(246,247,251,.72);
      border-bottom:1px solid rgba(17,24,39,.06);
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:14px 0;
    }
    .brand{
      display:flex; align-items:center; gap:12px; min-width:200px;
    }
    .ai-page-logo{
      width:44px; height:44px; border-radius:12px;
      background: linear-gradient(135deg, rgba(37,99,235,.18), rgba(124,58,237,.14));
      box-shadow:0 8px 22px rgba(37,99,235,.10);
      object-fit:contain;
    }
    .brand-text{
      display:flex; flex-direction:column; line-height:1.1;
    }
    .brand-text strong{
      font-size:14px; letter-spacing:.2px;
    }
    .brand-text span{
      font-size:12px; color:var(--muted);
    }

    nav .nav-links{
      display:flex; align-items:center; gap:14px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav-links a{
      font-size:13px;
      color:rgba(31,41,55,.86);
      padding:8px 10px;
      border-radius:12px;
      border:1px solid transparent;
      transition: background .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
      white-space:nowrap;
    }
    .nav-links a:hover{
      background:rgba(37,99,235,.08);
      border-color:rgba(37,99,235,.18);
      transform: translateY(-1px);
    }

    .nav-actions{
      display:flex; align-items:center; gap:10px; justify-content:flex-end;
    }
    .btn{
      display:inline-flex; align-items:center; justify-content:center;
      gap:10px;
      padding:11px 14px;
      border-radius:14px;
      border:1px solid rgba(37,99,235,.25);
      background: linear-gradient(180deg, rgba(37,99,235,.13), rgba(37,99,235,.07));
      color:rgba(29,78,216,.98);
      font-weight:650;
      font-size:13px;
      transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
      box-shadow:0 10px 26px rgba(37,99,235,.10);
      white-space:nowrap;
    }
    .btn:hover{
      transform: translateY(-1px);
      box-shadow:0 16px 40px rgba(37,99,235,.16);
      border-color:rgba(37,99,235,.35);
      background: linear-gradient(180deg, rgba(37,99,235,.18), rgba(37,99,235,.08));
    }
    .btn-primary{
      background: linear-gradient(135deg, rgba(37,99,235,1) 0%, rgba(14,165,233,1) 55%, rgba(124,58,237,1) 110%);
      border:1px solid rgba(0,0,0,.06);
      color:#fff;
      box-shadow:0 16px 50px rgba(37,99,235,.22);
    }
    .btn-primary:hover{
      box-shadow:0 22px 70px rgba(37,99,235,.28);
      border-color:rgba(255,255,255,.35);
    }
    .btn-ghost{
      background: rgba(255,255,255,.7);
      border:1px solid rgba(17,24,39,.12);
      color:rgba(31,41,55,.92);
      box-shadow:none;
    }
    .btn-ghost:hover{
      box-shadow:0 16px 40px rgba(17,24,39,.10);
      transform: translateY(-1px);
    }
    .icon{
      width:18px; height:18px; display:inline-block;
    }

    .menu-btn{
      display:none;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.75);
      box-shadow:0 10px 26px rgba(17,24,39,.08);
      cursor:pointer;
    }
    .menu-btn:focus{outline:2px solid var(--focus); outline-offset:2px}
    .menu-panel{
      display:none;
      padding:12px 0 18px;
    }
    .menu-panel .menu-links{
      display:flex;
      flex-direction:column;
      gap:8px;
    }
    .menu-panel .menu-links a{
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.7);
      font-size:14px;
      color:rgba(31,41,55,.92);
    }
    .menu-panel .menu-links a:active{transform: translateY(1px)}
    .menu-panel .menu-actions{
      display:flex; gap:10px; margin-top:12px; flex-wrap:wrap;
    }

    .hero{
      padding:36px 0 12px;
      position:relative;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.25fr .75fr;
      gap:22px;
      align-items:stretch;
    }
    .hero-left{
      border-radius:var(--radius2);
      background:
        linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.60)),
        radial-gradient(900px 360px at 15% 10%, rgba(37,99,235,.22), transparent 55%),
        radial-gradient(900px 360px at 85% 25%, rgba(124,58,237,.18), transparent 55%);
      border:1px solid rgba(17,24,39,.08);
      box-shadow:var(--shadow);
      padding:26px;
      overflow:hidden;
      position:relative;
      min-height:320px;
    }
    .hero-left:before{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        radial-gradient(420px 160px at 15% 0%, rgba(14,165,233,.28), transparent 60%),
        radial-gradient(480px 200px at 85% 20%, rgba(124,58,237,.22), transparent 60%),
        radial-gradient(520px 240px at 40% 85%, rgba(37,99,235,.18), transparent 62%);
      pointer-events:none;
      opacity:.9;
    }
    .hero-left > *{position:relative}
    .badge-row{
      display:flex; flex-wrap:wrap; gap:10px; align-items:center;
      margin-bottom:14px;
    }
    .badge{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(37,99,235,.18);
      background: rgba(255,255,255,.65);
      color:rgba(29,78,216,.96);
      font-weight:650;
      font-size:12px;
      letter-spacing:.2px;
    }
    .dot{
      width:9px; height:9px; border-radius:50%;
      background: linear-gradient(135deg, var(--brand), var(--brand2));
      box-shadow:0 8px 22px rgba(37,99,235,.25);
    }
    .hero h1{
      margin:0 0 10px;
      font-size:34px;
      letter-spacing:-.6px;
      line-height:1.14;
    }
    .lead{
      margin:0;
      color:rgba(31,41,55,.78);
      font-size:15px;
      line-height:1.7;
      max-width:62ch;
    }
    .cta-row{
      display:flex; gap:12px; flex-wrap:wrap;
      margin-top:18px; align-items:center;
    }
    .quick-actions{
      display:flex; gap:10px; flex-wrap:wrap; margin-top:14px;
    }
    .pill{
      display:inline-flex; align-items:center; gap:10px;
      padding:10px 12px;
      border-radius:16px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.62);
      transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
      min-width:160px;
    }
    .pill:hover{
      transform: translateY(-2px);
      border-color:rgba(37,99,235,.18);
      box-shadow:0 16px 40px rgba(17,24,39,.10);
    }
    .pill b{font-size:13px}
    .pill span{display:block; font-size:12px; color:var(--muted); margin-top:2px}
    .pill .mini-ic{
      width:36px; height:36px; border-radius:12px;
      background: linear-gradient(135deg, rgba(37,99,235,.18), rgba(124,58,237,.12));
      border:1px solid rgba(37,99,235,.18);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
    }

    .hero-right{
      display:flex; flex-direction:column; gap:14px;
    }
    .stat-card{
      border-radius:var(--radius);
      background: rgba(255,255,255,.75);
      border:1px solid rgba(17,24,39,.10);
      box-shadow: 0 10px 30px rgba(17,24,39,.06);
      padding:16px;
      position:relative;
      overflow:hidden;
    }
    .stat-card:after{
      content:"";
      position:absolute;
      width:220px; height:220px;
      right:-120px; top:-150px;
      border-radius:50%;
      background: radial-gradient(circle at 30% 30%, rgba(37,99,235,.22), transparent 60%);
      pointer-events:none;
    }
    .stat-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      position:relative;
    }
    .stat-top h3{
      margin:0;
      font-size:14px;
      color:rgba(31,41,55,.86);
      letter-spacing:.2px;
    }
    .stat-top .tag{
      font-size:12px; font-weight:700;
      padding:7px 10px;
      border-radius:999px;
      background: rgba(37,99,235,.10);
      color: rgba(29,78,216,.98);
      border:1px solid rgba(37,99,235,.18);
      white-space:nowrap;
    }
    .stat-value{
      margin-top:10px;
      display:flex; align-items:baseline; gap:10px;
      position:relative;
    }
    .stat-value strong{
      font-size:26px; letter-spacing:-.6px;
    }
    .stat-value span{
      color:var(--muted);
      font-size:13px;
    }
    .stat-list{
      margin:12px 0 0;
      padding:0; list-style:none;
      display:grid; gap:10px;
      position:relative;
    }
    .stat-list li{
      display:flex; gap:10px; align-items:flex-start;
      color:rgba(31,41,55,.84);
      font-size:13px;
      line-height:1.4;
    }
    .check{
      width:18px; height:18px; flex:0 0 auto;
      border-radius:6px;
      border:1px solid rgba(34,197,94,.25);
      background: rgba(34,197,94,.10);
      display:flex; align-items:center; justify-content:center;
      margin-top:1px;
    }
    .check svg{width:12px; height:12px; fill:none; stroke:#16a34a; stroke-width:2.4; stroke-linecap:round; stroke-linejoin:round}

    main{padding:18px 0 64px}

    .section{
      padding:30px 0;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:14px;
      margin-bottom:16px;
    }
    .kicker{
      color:rgba(29,78,216,.95);
      font-weight:800;
      font-size:12px;
      letter-spacing:.18em;
      text-transform:uppercase;
      margin-bottom:8px;
    }
    h2{
      margin:0;
      font-size:22px;
      letter-spacing:-.4px;
      line-height:1.25;
    }
    .sub{
      margin:8px 0 0;
      color:rgba(31,41,55,.72);
      font-size:14px;
      line-height:1.7;
      max-width:68ch;
    }
    .section-actions{
      display:flex; gap:10px; flex-wrap:wrap; justify-content:flex-end;
    }

    .grid-3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:14px;
    }
    .grid-2{
      display:grid;
      grid-template-columns: repeat(2, 1fr);
      gap:14px;
    }
    .card{
      border-radius:var(--radius);
      background: rgba(255,255,255,.78);
      border:1px solid rgba(17,24,39,.10);
      box-shadow: 0 14px 40px rgba(17,24,39,.06);
      padding:16px;
      transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
      position:relative;
      overflow:hidden;
    }
    .card:hover{
      transform: translateY(-3px);
      box-shadow: 0 18px 55px rgba(17,24,39,.10);
      border-color:rgba(37,99,235,.18);
    }
    .card h3{
      margin:0;
      font-size:15px;
      letter-spacing:-.2px;
    }
    .card p{
      margin:10px 0 0;
      color:rgba(31,41,55,.72);
      font-size:13.5px;
      line-height:1.7;
    }
    .card .chip-row{
      margin-top:12px;
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .chip{
      padding:7px 10px;
      border-radius:999px;
      font-size:12px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.65);
      color:rgba(31,41,55,.82);
    }
    .chip strong{color:rgba(29,78,216,.98)}
    .card .corner{
      position:absolute;
      right:-30px; top:-30px;
      width:90px; height:90px;
      border-radius:30px;
      background: radial-gradient(circle at 30% 30%, rgba(37,99,235,.22), transparent 55%);
      transform: rotate(12deg);
      pointer-events:none;
    }

    .timeline{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap:14px;
      align-items:start;
    }
    .steps{
      display:grid;
      gap:12px;
    }
    .step{
      display:flex; gap:12px; align-items:flex-start;
      padding:14px;
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 12px 34px rgba(17,24,39,.05);
      transition: transform .25s var(--ease), box-shadow .25s var(--ease);
    }
    .step:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 55px rgba(17,24,39,.09);
    }
    .step .num{
      width:38px; height:38px; border-radius:14px;
      background: linear-gradient(135deg, rgba(37,99,235,.18), rgba(14,165,233,.14));
      border:1px solid rgba(37,99,235,.18);
      display:flex; align-items:center; justify-content:center;
      font-weight:900;
      color:rgba(29,78,216,.98);
      flex:0 0 auto;
    }
    .step b{
      display:block;
      font-size:14.5px;
      margin-top:2px;
    }
    .step span{
      display:block;
      margin-top:6px;
      color:rgba(31,41,55,.72);
      font-size:13.2px;
      line-height:1.65;
    }

    .panel{
      border-radius:var(--radius2);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.74);
      box-shadow: var(--shadow);
      padding:18px;
      overflow:hidden;
      position:relative;
    }
    .panel:before{
      content:"";
      position:absolute;
      inset:-1px;
      background:
        radial-gradient(700px 240px at 10% 0%, rgba(37,99,235,.16), transparent 55%),
        radial-gradient(700px 240px at 90% 0%, rgba(124,58,237,.12), transparent 55%);
      pointer-events:none;
      opacity:.9;
    }
    .panel > *{position:relative}

    .model-grid{
      display:grid;
      grid-template-columns: 1fr;
      gap:12px;
    }
    .model-row{
      display:flex; gap:12px; flex-wrap:wrap; align-items:center;
    }
    .model-pill{
      display:flex; align-items:center; gap:10px;
      padding:10px 12px;
      border-radius:16px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.7);
    }
    .model-dot{
      width:12px; height:12px; border-radius:50%;
      background: linear-gradient(135deg, rgba(37,99,235,1), rgba(124,58,237,1));
      box-shadow:0 10px 26px rgba(37,99,235,.22);
    }
    .model-pill b{font-size:13.5px}
    .model-pill span{display:block; font-size:12px; color:var(--muted); margin-top:2px}

    .compare-wrap{
      overflow:hidden;
    }
    .compare-table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      background: rgba(255,255,255,.75);
      border:1px solid rgba(17,24,39,.10);
      border-radius:var(--radius2);
      overflow:hidden;
      box-shadow: 0 14px 40px rgba(17,24,39,.06);
    }
    .compare-table th, .compare-table td{
      padding:14px 12px;
      border-bottom:1px solid rgba(17,24,39,.08);
      vertical-align:top;
      font-size:13.5px;
      line-height:1.55;
    }
    .compare-table th{
      background: linear-gradient(180deg, rgba(37,99,235,.12), rgba(37,99,235,.06));
      color:rgba(29,78,216,.98);
      font-weight:900;
      text-align:left;
      border-bottom:1px solid rgba(37,99,235,.18);
    }
    .compare-table tr:last-child td{border-bottom:none}
    .badge-score{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius:999px;
      background: rgba(245,158,11,.10);
      border:1px solid rgba(245,158,11,.22);
      font-weight:900;
      color: rgba(180,83,9,.98);
      white-space:nowrap;
    }
    .star-row{
      display:flex; align-items:center; gap:6px; margin-top:6px;
    }
    .star{
      width:16px; height:16px;
      fill: rgba(245,158,11,.95);
      filter: drop-shadow(0 8px 22px rgba(245,158,11,.20));
    }
    .tag-ok{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius:14px;
      background: rgba(34,197,94,.10);
      border:1px solid rgba(34,197,94,.22);
      color: rgba(22,163,74,.98);
      font-weight:850;
      white-space:nowrap;
    }
    .tag-mid{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius:14px;
      background: rgba(245,158,11,.10);
      border:1px solid rgba(245,158,11,.22);
      color: rgba(180,83,9,.98);
      font-weight:850;
      white-space:nowrap;
    }

    .faq-grid{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap:14px;
      align-items:start;
    }
    .faq-list{
      display:grid;
      gap:10px;
    }
    details.faq{
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.76);
      box-shadow: 0 12px 34px rgba(17,24,39,.05);
      padding:12px 12px;
      overflow:hidden;
      transition: box-shadow .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
    }
    details.faq[open]{
      border-color: rgba(37,99,235,.20);
      box-shadow: 0 18px 55px rgba(17,24,39,.10);
      transform: translateY(-2px);
    }
    summary{
      cursor:pointer;
      list-style:none;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:14px;
      padding:8px 8px;
      border-radius:14px;
      outline:none;
    }
    summary::-webkit-details-marker{display:none}
    .faq-q{
      font-weight:850;
      font-size:14px;
      letter-spacing:-.1px;
      line-height:1.45;
    }
    .faq-ctrl{
      flex:0 0 auto;
      width:28px; height:28px;
      border-radius:12px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      display:flex; align-items:center; justify-content:center;
      transition: transform .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
      margin-top:2px;
    }
    details[open] .faq-ctrl{
      transform: rotate(45deg);
      border-color: rgba(37,99,235,.22);
      background: rgba(37,99,235,.08);
    }
    .faq-a{
      padding:0 8px 10px 8px;
      color:rgba(31,41,55,.74);
      font-size:13.5px;
      line-height:1.75;
    }
    .faq-side{
      display:flex; flex-direction:column; gap:12px;
    }
    .side-card{
      border-radius:var(--radius);
      background: rgba(255,255,255,.76);
      border:1px solid rgba(17,24,39,.10);
      box-shadow: 0 12px 34px rgba(17,24,39,.05);
      padding:16px;
      position:relative;
      overflow:hidden;
    }
    .side-card:after{
      content:"";
      position:absolute;
      width:180px; height:180px;
      right:-80px; bottom:-90px;
      border-radius:50%;
      background: radial-gradient(circle at 30% 30%, rgba(14,165,233,.20), transparent 60%);
      pointer-events:none;
    }
    .side-card > *{position:relative}
    .side-card h3{
      margin:0; font-size:15px; letter-spacing:-.2px;
    }
    .side-card p{
      margin:10px 0 0;
      color:rgba(31,41,55,.72);
      font-size:13.5px;
      line-height:1.7;
    }
    .bullets{
      margin:12px 0 0; padding:0; list-style:none;
      display:grid; gap:10px;
    }
    .bullets li{
      display:flex; gap:10px; align-items:flex-start;
      font-size:13.5px;
      color:rgba(31,41,55,.80);
      line-height:1.45;
    }
    .bullets .b-ic{
      width:18px; height:18px; border-radius:7px;
      border:1px solid rgba(37,99,235,.18);
      background: rgba(37,99,235,.08);
      display:flex; align-items:center; justify-content:center;
      margin-top:1px;
      flex:0 0 auto;
    }
    .bullets .b-ic svg{width:12px; height:12px; fill:none; stroke:#2563eb; stroke-width:2.2; stroke-linecap:round; stroke-linejoin:round}

    .review-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:14px;
    }
    .review{
      padding:16px;
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.76);
      box-shadow: 0 14px 40px rgba(17,24,39,.06);
      transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
      position:relative;
      overflow:hidden;
    }
    .review:hover{
      transform: translateY(-3px);
      box-shadow: 0 18px 55px rgba(17,24,39,.10);
      border-color:rgba(37,99,235,.18);
    }
    .review .top{
      display:flex; justify-content:space-between; gap:10px; align-items:flex-start;
    }
    .avatar{
      width:40px; height:40px; border-radius:16px;
      background: linear-gradient(135deg, rgba(37,99,235,.18), rgba(124,58,237,.12));
      border:1px solid rgba(37,99,235,.18);
      display:flex; align-items:center; justify-content:center;
      font-weight:900; color: rgba(29,78,216,.98);
      flex:0 0 auto;
    }
    .review .role{
      color:rgba(31,41,55,.72);
      font-size:12.5px;
      margin-top:4px;
    }
    .review .name{
      font-weight:900;
      font-size:14.5px;
      letter-spacing:-.2px;
    }
    .review .text{
      margin:12px 0 0;
      color:rgba(31,41,55,.76);
      font-size:13.5px;
      line-height:1.75;
    }
    .review .meta{
      margin-top:12px;
      display:flex; gap:10px; flex-wrap:wrap; align-items:center;
    }
    .review .meta .mini-tag{
      font-size:12px;
      padding:7px 10px;
      border-radius:999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.66);
      color:rgba(31,41,55,.84);
    }

    .case-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:14px;
    }
    .case{
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.76);
      box-shadow: 0 14px 40px rgba(17,24,39,.06);
      overflow:hidden;
      transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
      display:flex;
      flex-direction:column;
      min-height:250px;
    }
    .case .imgbox{
      background: linear-gradient(135deg, rgba(37,99,235,.14), rgba(14,165,233,.10));
      border-bottom:1px solid rgba(17,24,39,.08);
      padding:14px;
      position:relative;
      flex:0 0 auto;
      min-height:96px;
    }
    .case .imgbox .thumb{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
    }
    .glyph{
      width:54px; height:54px;
      border-radius:20px;
      background: rgba(255,255,255,.75);
      border:1px solid rgba(37,99,235,.18);
      display:flex; align-items:center; justify-content:center;
      box-shadow:0 14px 40px rgba(37,99,235,.12);
      flex:0 0 auto;
    }
    .glyph svg{width:26px; height:26px; fill:none; stroke:#2563eb; stroke-width:2.2; stroke-linecap:round; stroke-linejoin:round}
    .case .imgbox .metric{
      text-align:right;
    }
    .case .imgbox .metric b{
      display:block;
      font-size:18px;
      letter-spacing:-.4px;
    }
    .case .imgbox .metric span{
      display:block;
      margin-top:4px;
      font-size:12px;
      color:rgba(31,41,55,.68);
    }
    .case .content{
      padding:14px 16px 16px;
      display:flex; flex-direction:column; gap:10px;
      flex:1 1 auto;
    }
    .case h3{
      margin:0;
      font-size:15px;
      letter-spacing:-.2px;
    }
    .case p{
      margin:0;
      color:rgba(31,41,55,.72);
      font-size:13.5px;
      line-height:1.7;
    }
    .case .acts{
      margin-top:auto;
      display:flex; gap:10px; flex-wrap:wrap;
    }

    .article-grid{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap:14px;
      align-items:start;
    }
    .article-list{
      display:grid; gap:12px;
    }
    .article-item{
      display:flex; align-items:flex-start; justify-content:space-between; gap:14px;
      padding:14px;
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.76);
      box-shadow: 0 12px 34px rgba(17,24,39,.05);
      transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
    }
    .article-item:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 55px rgba(17,24,39,.10);
      border-color:rgba(37,99,235,.18);
    }
    .article-item b{
      font-size:14.5px;
      letter-spacing:-.2px;
    }
    .article-item p{
      margin:8px 0 0;
      color:rgba(31,41,55,.72);
      font-size:13.3px;
      line-height:1.65;
    }
    .article-item .right{
      flex:0 0 auto;
      text-align:right;
      color:rgba(31,41,55,.66);
      font-size:12px;
      white-space:nowrap;
    }

    .tagcloud{
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .tagcloud a{
      padding:9px 11px;
      border-radius:999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.68);
      color:rgba(31,41,55,.84);
      font-size:12.5px;
      transition: transform .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
      white-space:nowrap;
    }
    .tagcloud a:hover{
      transform: translateY(-2px);
      border-color:rgba(37,99,235,.18);
      background: rgba(37,99,235,.08);
      color: rgba(29,78,216,.98);
    }

    form{
      display:grid;
      gap:12px;
    }
    .form-row{
      display:grid;
      grid-template-columns: repeat(2, 1fr);
      gap:12px;
    }
    label{
      display:grid;
      gap:8px;
      color:rgba(31,41,55,.88);
      font-weight:800;
      font-size:13px;
    }
    input, select, textarea{
      width:100%;
      padding:12px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.82);
      color:rgba(31,41,55,.92);
      outline:none;
      font-size:14px;
      transition: box-shadow .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
    }
    textarea{min-height:112px; resize:vertical}
    input:focus, select:focus, textarea:focus{
      border-color: rgba(37,99,235,.35);
      box-shadow: 0 0 0 4px rgba(37,99,235,.12);
    }
    .form-actions{
      display:flex; gap:12px; flex-wrap:wrap; align-items:center; justify-content:space-between;
    }
    .hint{
      color:rgba(31,41,55,.66);
      font-size:12.5px;
      line-height:1.5;
      max-width:48ch;
    }

    .network-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
      align-items:start;
    }
    .network-list{
      list-style:none;
      padding:0; margin:0;
      display:grid; gap:10px;
    }
    .network-item{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      padding:14px;
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.76);
      box-shadow: 0 12px 34px rgba(17,24,39,.05);
      transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
    }
    .network-item:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 55px rgba(17,24,39,.10);
      border-color:rgba(37,99,235,.18);
    }
    .network-item b{font-size:14.5px}
    .network-item span{
      display:block;
      margin-top:6px;
      color:rgba(31,41,55,.72);
      font-size:13.3px;
      line-height:1.6;
    }
    .status{
      font-size:12px;
      padding:8px 10px;
      border-radius:14px;
      border:1px solid rgba(34,197,94,.22);
      background: rgba(34,197,94,.10);
      color: rgba(22,163,74,.98);
      font-weight:900;
      white-space:nowrap;
      height:fit-content;
      margin-top:2px;
    }

    .gallery-row{
      display:grid;
      grid-template-columns: repeat(2, 1fr);
      gap:14px;
      align-items:stretch;
    }
    .img-card{
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.76);
      box-shadow: 0 14px 40px rgba(17,24,39,.06);
      overflow:hidden;
    }
    .img-holder{
      padding:14px;
    }
    .img-holder img{
      width:100%;
      height:auto;
      display:block;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.6);
    }
    .img-card .cap{
      padding:0 16px 16px;
    }
    .img-card .cap b{font-size:15px}
    .img-card .cap p{
      margin:8px 0 0;
      color:rgba(31,41,55,.72);
      font-size:13.5px;
      line-height:1.7;
    }

    .footer{
      background: rgba(17,24,39,.92);
      color:#e5e7eb;
      border-top:1px solid rgba(255,255,255,.08);
      padding:26px 0 20px;
      margin-top:10px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap:14px;
      align-items:start;
    }
    .foot-brand{
      display:flex; gap:12px; align-items:flex-start;
    }
    .foot-logo{
      width:44px; height:44px; border-radius:16px;
      background: linear-gradient(135deg, rgba(37,99,235,.35), rgba(124,58,237,.28));
      border:1px solid rgba(255,255,255,.16);
      display:flex; align-items:center; justify-content:center;
    }
    .foot-logo svg{width:22px; height:22px; stroke:#fff; fill:none; stroke-width:2.2; stroke-linecap:round; stroke-linejoin:round}
    .footer h3{margin:0; font-size:15px; color:#fff}
    .foot-desc{
      margin:10px 0 0;
      color:rgba(229,231,235,.84);
      font-size:13.5px;
      line-height:1.7;
      max-width:64ch;
    }
    .footer-links{
      display:grid; gap:10px;
      justify-items:end;
    }
    .footer-links .row{
      display:flex; gap:10px; flex-wrap:wrap; justify-content:flex-end;
    }
    .footer-links a{
      color:rgba(229,231,235,.92);
      border:1px solid rgba(255,255,255,.16);
      background: rgba(255,255,255,.05);
      padding:9px 11px;
      border-radius:999px;
      font-size:12.8px;
      transition: transform .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
      white-space:nowrap;
    }
    .footer-links a:hover{
      transform: translateY(-2px);
      background: rgba(255,255,255,.10);
      border-color: rgba(255,255,255,.24);
    }
    .copyright{
      margin-top:16px;
      padding-top:14px;
      border-top:1px solid rgba(255,255,255,.10);
      display:flex; flex-wrap:wrap; gap:10px; align-items:center; justify-content:space-between;
      color:rgba(229,231,235,.72);
      font-size:12.5px;
    }

    .float-chat{
      position:fixed;
      right:14px;
      bottom:14px;
      z-index:80;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-end;
    }
    .float-card{
      border-radius:18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.85);
      box-shadow: 0 18px 60px rgba(17,24,39,.18);
      overflow:hidden;
      width:240px;
      transform-origin: right bottom;
      animation: floatIn .45s var(--ease) both;
    }
    @keyframes floatIn{
      from{opacity:0; transform: translateY(10px) scale(.98)}
      to{opacity:1; transform: translateY(0) scale(1)}
    }
    .float-card .head{
      padding:12px 12px 10px;
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      background: linear-gradient(180deg, rgba(37,99,235,.10), rgba(255,255,255,.0));
      border-bottom:1px solid rgba(17,24,39,.08);
    }
    .float-card .head b{font-size:13.5px}
    .close{
      width:32px; height:32px;
      border-radius:12px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.75);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .2s var(--ease);
      flex:0 0 auto;
    }
    .close:active{transform: translateY(1px)}
    .close svg{width:14px; height:14px; stroke:#374151; fill:none; stroke-width:2.3; stroke-linecap:round}
    .float-card .body{
      padding:12px;
      display:grid; gap:10px;
    }
    .float-card .qr{
      width:100%;
      display:flex; align-items:center; justify-content:center;
      border-radius:16px;
      background: rgba(37,99,235,.05);
      border:1px solid rgba(37,99,235,.14);
      padding:10px;
    }
    .float-card .qr img{
      width:120px; height:auto;
      border-radius:12px;
      border:1px solid rgba(17,24,39,.10);
      background:#fff;
      display:block;
    }
    .float-card .meta{
      color:rgba(31,41,55,.72);
      font-size:12.8px;
      line-height:1.5;
    }
    .float-card .actions{
      display:flex; gap:10px; flex-wrap:wrap;
    }
    .mini-btn{
      flex:1 1 auto;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.75);
      font-weight:850;
      font-size:12.8px;
      cursor:pointer;
      transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
      color:rgba(31,41,55,.92);
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
    }
    .mini-btn:hover{transform: translateY(-2px); border-color: rgba(37,99,235,.20); box-shadow: 0 14px 40px rgba(17,24,39,.10)}
    .mini-btn.primary{
      background: linear-gradient(135deg, rgba(37,99,235,1), rgba(14,165,233,1));
      border-color: rgba(255,255,255,.2);
      color:#fff;
    }
    .mini-btn svg{width:14px; height:14px; stroke:currentColor; fill:none; stroke-width:2.2; stroke-linecap:round; stroke-linejoin:round}
    .float-toggle{
      width:52px; height:52px;
      border-radius:18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.85);
      box-shadow: 0 18px 60px rgba(17,24,39,.18);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .2s var(--ease);
      overflow:hidden;
      position:relative;
    }
    .float-toggle:hover{transform: translateY(-2px)}
    .float-toggle:before{
      content:"";
      position:absolute; inset:-40px;
      background: radial-gradient(circle at 30% 30%, rgba(37,99,235,.35), transparent 55%);
      opacity:.8;
      pointer-events:none;
    }
    .float-toggle svg{width:22px; height:22px; stroke:#2563eb; fill:none; stroke-width:2.3; stroke-linecap:round; stroke-linejoin:round; position:relative}

    .to-top{
      position:fixed;
      right:14px;
      bottom:78px;
      z-index:70;
      width:46px; height:46px;
      border-radius:18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 18px 60px rgba(17,24,39,.14);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .2s var(--ease), opacity .2s var(--ease);
      opacity:0;
      pointer-events:none;
    }
    .to-top.show{
      opacity:1;
      pointer-events:auto;
    }
    .to-top svg{width:18px; height:18px; stroke:#2563eb; fill:none; stroke-width:2.3; stroke-linecap:round; stroke-linejoin:round}

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

    @media (max-width: 980px){
      .hero-grid{grid-template-columns:1fr; }
      .hero-right{flex-direction:row; }
      .stat-card{flex:1 1 0}
      .grid-3{grid-template-columns: 1fr;}
      .grid-2{grid-template-columns: 1fr;}
      .review-grid{grid-template-columns: 1fr;}
      .case-grid{grid-template-columns: 1fr;}
      .faq-grid{grid-template-columns: 1fr;}
      .timeline{grid-template-columns: 1fr;}
      .article-grid{grid-template-columns: 1fr;}
      .network-grid{grid-template-columns: 1fr;}
      .gallery-row{grid-template-columns: 1fr;}
      .footer-grid{grid-template-columns: 1fr}
      .footer-links{justify-items:start}
      .footer-links .row{justify-content:flex-start}
      .form-row{grid-template-columns:1fr}
      .menu-btn{display:inline-flex}
      nav .nav-links{display:none}
      .menu-panel.open{display:block}
      .hero-left{min-height:auto}
      .to-top{display:none}
    }

    @media (prefers-reduced-motion: reduce){
      html{scroll-behavior:auto}
      .reveal{transition:none}
      .card:hover,.pill:hover,.step:hover,.review:hover,.article-item:hover,.case:hover,.network-item:hover{transform:none}
    }