:root{
      --bg0:#ffffff;
      --bg1:#fbfbfe;
      --bg2:#f3f6ff;
      --text:#111827;
      --muted:#51606f;
      --muted2:#6b7280;
      --line:rgba(17,24,39,.10);
      --line2:rgba(17,24,39,.14);
      --card:rgba(255,255,255,.78);
      --shadow:0 14px 40px rgba(17,24,39,.10);
      --shadow2:0 10px 26px rgba(17,24,39,.10);
      --accent:#1565ff;
      --accent2:#7c3aed;
      --good:#16a34a;
      --warn:#f59e0b;
      --danger:#ef4444;
      --radius:18px;
      --radius2:26px;
      --container:1120px;
      --pad:20px;
      --focus: 0 0 0 4px rgba(21,101,255,.20);
      --btnGrad: linear-gradient(135deg, #1565ff 0%, #7c3aed 90%);
      --chipGrad: linear-gradient(180deg, rgba(21,101,255,.14), rgba(124,58,237,.08));
      --heroGrad: radial-gradient(1200px 520px at 15% 0%, rgba(21,101,255,.18), transparent 55%),
                  radial-gradient(900px 420px at 95% 10%, rgba(124,58,237,.16), transparent 52%),
                  linear-gradient(180deg, #fbfcff 0%, #f3f6ff 100%);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color:var(--text);
      background:
        var(--heroGrad);
      overflow-x:hidden;
    }
    a{color:inherit; text-decoration:none}
    .container{
      width:100%;
      max-width:var(--container);
      margin:0 auto;
      padding:0 var(--pad);
    }
    .topbar{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:saturate(140%) blur(10px);
      background:rgba(251,252,255,.78);
      border-bottom:1px solid rgba(17,24,39,.08);
    }
    .topbar-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:12px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:220px;
    }
    .ai-page-logo{
      width:38px;
      height:38px;
      object-fit:contain;
    }
    .brand-title{
      display:flex;
      flex-direction:column;
      line-height:1.1;
    }
    .brand-title strong{
      font-size:14px;
      letter-spacing:.2px;
    }
    .brand-title span{
      font-size:12px;
      color:var(--muted2);
    }
    nav{
      display:flex;
      align-items:center;
      gap:16px;
      flex:1;
      justify-content:flex-end;
      flex-wrap:wrap;
    }
    .nav-links{
      display:flex;
      gap:10px;
      align-items:center;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav-links a{
      font-size:13px;
      color:var(--muted);
      padding:8px 10px;
      border-radius:999px;
      border:1px solid transparent;
      transition:transform .15s ease, background .15s ease, border-color .15s ease;
      white-space:nowrap;
    }
    .nav-links a:hover{
      background:rgba(21,101,255,.08);
      border-color:rgba(21,101,255,.18);
      transform:translateY(-1px);
      color:#0f2a67;
    }
    .nav-cta{
      display:flex;
      align-items:center;
      gap:10px;
      white-space:nowrap;
    }
    .btn{
      border:1px solid rgba(17,24,39,.12);
      background:rgba(255,255,255,.7);
      color:var(--text);
      border-radius:12px;
      padding:10px 12px;
      font-size:13px;
      cursor:pointer;
      transition:transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
      display:inline-flex;
      align-items:center;
      gap:8px;
      user-select:none;
    }
    .btn:hover{ transform:translateY(-1px); box-shadow:0 10px 22px rgba(17,24,39,.10); border-color:rgba(21,101,255,.22); }
    .btn:active{ transform:translateY(0); box-shadow:none; }
    .btn-primary{
      border:0;
      background:var(--btnGrad);
      color:#fff;
      box-shadow:0 16px 36px rgba(21,101,255,.18);
    }
    .btn-primary:hover{ box-shadow:0 18px 42px rgba(21,101,255,.24); }
    .btn .dot{
      width:10px; height:10px; border-radius:50%;
      background:rgba(255,255,255,.85);
      box-shadow:0 0 0 6px rgba(255,255,255,.18);
    }
    .icon{
      width:18px; height:18px; display:inline-block;
      border-radius:6px;
      background:rgba(21,101,255,.12);
      position:relative;
    }
    .icon::after{
      content:"";
      position:absolute;
      inset:4px;
      border-radius:4px;
      border:2px solid rgba(21,101,255,.55);
      border-left-color:transparent;
      border-bottom-color:transparent;
      transform:rotate(45deg);
    }

    .mobile-toggle{
      display:none;
      border:1px solid rgba(17,24,39,.12);
      background:rgba(255,255,255,.7);
      border-radius:12px;
      padding:10px 12px;
      cursor:pointer;
      transition:transform .15s ease, box-shadow .15s ease, border-color .15s ease;
    }
    .mobile-toggle:hover{ transform:translateY(-1px); box-shadow:0 10px 22px rgba(17,24,39,.10); border-color:rgba(21,101,255,.22); }
    .burger{
      width:18px; height:14px; position:relative; display:inline-block;
    }
    .burger span{
      position:absolute; left:0; right:0;
      height:2px; background:rgba(17,24,39,.75);
      border-radius:2px;
      transition:transform .2s ease, top .2s ease, opacity .2s ease;
    }
    .burger span:nth-child(1){ top:0}
    .burger span:nth-child(2){ top:6px}
    .burger span:nth-child(3){ top:12px}
    .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;
      border-top:1px solid rgba(17,24,39,.08);
      padding:10px 0 14px;
    }
    .mobile-panel.open{ display:block; }
    .mobile-panel .nav-links{
      justify-content:flex-start;
    }
    .mobile-panel .nav-links a{ padding:10px 12px; }
    .mobile-panel .nav-cta{ margin-top:10px; }

    .hero{
      padding:34px 0 20px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap:18px;
      align-items:stretch;
    }
    .hero-left{
      padding:26px;
      border:1px solid rgba(17,24,39,.08);
      background:linear-gradient(180deg, rgba(255,255,255,.82), rgba(255,255,255,.62));
      border-radius:var(--radius2);
      box-shadow:0 18px 58px rgba(17,24,39,.10);
      position:relative;
      overflow:hidden;
    }
    .hero-left::before{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        radial-gradient(420px 220px at 18% 5%, rgba(21,101,255,.25), transparent 60%),
        radial-gradient(420px 220px at 92% 15%, rgba(124,58,237,.18), transparent 62%);
      pointer-events:none;
      opacity:.95;
    }
    .hero-left > *{ position:relative; z-index:1; }
    .pill-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      margin-bottom:14px;
    }
    .pill{
      font-size:12px;
      color:#0f2a67;
      border:1px solid rgba(21,101,255,.20);
      background:var(--chipGrad);
      padding:8px 10px;
      border-radius:999px;
      display:inline-flex;
      align-items:center;
      gap:8px;
    }
    .pill i{
      width:10px; height:10px; border-radius:3px;
      background:linear-gradient(180deg, rgba(21,101,255,.9), rgba(124,58,237,.8));
      box-shadow:0 0 0 6px rgba(21,101,255,.12);
    }
    h1{
      margin:0 0 10px;
      font-size:34px;
      line-height:1.12;
      letter-spacing:-.6px;
    }
    .lead{
      margin:0 0 18px;
      color:var(--muted);
      font-size:15px;
      line-height:1.7;
      max-width:62ch;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
      margin-bottom:18px;
    }
    .meta-row{
      display:flex;
      gap:14px;
      flex-wrap:wrap;
      align-items:center;
      padding-top:6px;
      border-top:1px dashed rgba(17,24,39,.12);
    }
    .meta{
      display:flex;
      align-items:center;
      gap:10px;
      padding:8px 10px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.55);
    }
    .meta b{ font-size:14px; }
    .meta span{ font-size:12px; color:var(--muted2); }
    .spark{
      width:34px; height:34px;
      border-radius:12px;
      background:linear-gradient(135deg, rgba(21,101,255,.15), rgba(124,58,237,.12));
      border:1px solid rgba(21,101,255,.18);
      display:grid;
      place-items:center;
    }
    .spark svg{ width:18px; height:18px; fill:none; stroke:#1f6fff; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }

    .hero-right{
      border-radius:var(--radius2);
      border:1px solid rgba(17,24,39,.08);
      background:linear-gradient(180deg, rgba(255,255,255,.80), rgba(255,255,255,.60));
      box-shadow:0 18px 58px rgba(17,24,39,.08);
      padding:18px;
      display:flex;
      flex-direction:column;
      gap:12px;
      position:relative;
      overflow:hidden;
    }
    .hero-right::after{
      content:"";
      position:absolute;
      inset:-80px -80px auto auto;
      width:220px; height:220px;
      background: radial-gradient(circle at 30% 30%, rgba(21,101,255,.22), transparent 60%),
                  radial-gradient(circle at 70% 40%, rgba(124,58,237,.18), transparent 62%);
      transform:rotate(12deg);
      pointer-events:none;
      opacity:.95;
    }
    .hero-right > *{ position:relative; z-index:1; }
    .data-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
    }
    .data-card{
      padding:14px 12px;
      border-radius:16px;
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.62);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      min-height:92px;
    }
    .data-card:hover{
      transform:translateY(-2px);
      box-shadow:0 16px 34px rgba(17,24,39,.10);
      border-color:rgba(21,101,255,.20);
    }
    .data-card .k{
      font-size:12px; color:var(--muted2);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
    }
    .tag-flag{
      font-size:11px;
      padding:5px 8px;
      border-radius:999px;
      background:rgba(21,101,255,.10);
      border:1px solid rgba(21,101,255,.18);
      color:#0f2a67;
      white-space:nowrap;
    }
    .data-card .v{
      font-size:20px;
      margin-top:8px;
      letter-spacing:-.4px;
      font-weight:780;
    }
    .subnote{
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
      border-top:1px solid rgba(17,24,39,.08);
      padding-top:12px;
      display:flex;
      align-items:flex-start;
      gap:10px;
    }
    .subnote .badge{
      flex:0 0 auto;
      width:34px; height:34px;
      border-radius:14px;
      border:1px solid rgba(124,58,237,.18);
      background:linear-gradient(180deg, rgba(124,58,237,.10), rgba(21,101,255,.06));
      display:grid;
      place-items:center;
    }
    .subnote .badge svg{ width:18px; height:18px; stroke:#7c3aed; fill:none; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }

    main{ padding:0 0 34px; }
    section{
      padding:22px 0;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:14px;
      margin-bottom:14px;
    }
    .section-head h2{
      margin:0;
      font-size:22px;
      letter-spacing:-.3px;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
      max-width:58ch;
    }
    .divider{
      height:1px;
      background:linear-gradient(90deg, rgba(17,24,39,.10), rgba(17,24,39,.05), rgba(17,24,39,.10));
      margin:10px 0 0;
    }

    .cards-3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:14px;
    }
    .card{
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.70);
      border-radius:var(--radius);
      padding:16px;
      box-shadow:0 10px 30px rgba(17,24,39,.06);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      position:relative;
      overflow:hidden;
    }
    .card:hover{
      transform:translateY(-2px);
      box-shadow:0 18px 44px rgba(17,24,39,.10);
      border-color:rgba(21,101,255,.20);
    }
    .card .title{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      margin-bottom:10px;
    }
    .card h3{
      margin:0;
      font-size:15px;
      letter-spacing:-.2px;
    }
    .card p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.7;
    }
    .miniicon{
      width:36px; height:36px;
      border-radius:14px;
      border:1px solid rgba(21,101,255,.18);
      background:linear-gradient(180deg, rgba(21,101,255,.14), rgba(124,58,237,.08));
      display:grid;
      place-items:center;
      flex:0 0 auto;
    }
    .miniicon svg{ width:18px; height:18px; stroke:#1f6fff; fill:none; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }

    .steps{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap:12px;
      align-items:stretch;
    }
    .step{
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.66);
      border-radius:var(--radius);
      padding:14px;
      display:flex;
      flex-direction:column;
      gap:10px;
      position:relative;
      overflow:hidden;
      min-height:172px;
    }
    .step::before{
      content:"";
      position:absolute;
      top:-60px; left:-60px;
      width:140px; height:140px;
      background:radial-gradient(circle at 40% 40%, rgba(21,101,255,.18), transparent 60%);
      transform:rotate(-10deg);
      opacity:.9;
      pointer-events:none;
    }
    .step > *{ position:relative; z-index:1; }
    .step-top{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:10px;
    }
    .step-num{
      width:34px; height:34px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#0f2a67;
      background:rgba(21,101,255,.10);
      border:1px solid rgba(21,101,255,.18);
      font-weight:800;
      letter-spacing:-.2px;
    }
    .step h3{ margin:0; font-size:14px; }
    .step p{ margin:0; color:var(--muted); font-size:13px; line-height:1.7; }

    .split{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
      align-items:stretch;
    }
    .panel{
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.68);
      border-radius:var(--radius2);
      padding:16px;
      box-shadow:0 10px 30px rgba(17,24,39,.06);
      overflow:hidden;
      position:relative;
    }
    .panel::after{
      content:"";
      position:absolute;
      inset:auto -90px -120px auto;
      width:260px; height:260px;
      background:radial-gradient(circle at 30% 30%, rgba(124,58,237,.16), transparent 60%);
      pointer-events:none;
    }
    .panel > *{ position:relative; z-index:1; }
    .panel h3{
      margin:0 0 10px;
      font-size:16px;
      letter-spacing:-.2px;
    }
    .list{
      display:grid;
      grid-template-columns: 1fr;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.58);
    }
    .list .check{
      width:18px; height:18px;
      border-radius:6px;
      background:rgba(22,163,74,.12);
      border:1px solid rgba(22,163,74,.20);
      display:grid;
      place-items:center;
      flex:0 0 auto;
      margin-top:2px;
    }
    .list .check svg{ width:12px; height:12px; fill:none; stroke:#16a34a; stroke-width:2.2; stroke-linecap:round; stroke-linejoin:round; }
    .list .li-title{
      font-size:13px;
      font-weight:720;
      margin-bottom:2px;
    }
    .list .li-desc{
      color:var(--muted);
      font-size:12px;
      line-height:1.6;
    }

    .compare{
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.70);
      border-radius:var(--radius2);
      overflow:hidden;
      box-shadow:0 14px 40px rgba(17,24,39,.08);
    }
    .compare-head{
      padding:16px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      border-bottom:1px solid rgba(17,24,39,.08);
      background:linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.62));
    }
    .rating{
      display:flex;
      align-items:center;
      gap:12px;
      flex-wrap:wrap;
    }
    .stars{
      display:flex;
      gap:4px;
    }
    .star{
      width:18px; height:18px;
      fill:rgba(245,158,11,.25);
      stroke:rgba(245,158,11,.95);
      stroke-width:1.2;
      transform-origin:50% 50%;
      animation: pop .8s ease both;
    }
    .star:nth-child(1){ animation-delay:.02s }
    .star:nth-child(2){ animation-delay:.06s }
    .star:nth-child(3){ animation-delay:.10s }
    .star:nth-child(4){ animation-delay:.14s }
    .star:nth-child(5){ animation-delay:.18s }
    @keyframes pop{ 0%{ transform:translateY(2px) scale(.96) } 40%{ transform:translateY(-2px) scale(1.08) } 100%{ transform:translateY(0) scale(1) } }
    .rating strong{
      font-size:18px;
      letter-spacing:-.3px;
    }
    .compare-meta{
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
      text-align:right;
      max-width:56ch;
    }
    .table-wrap{
      overflow:auto;
    }
    table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      min-width:760px;
    }
    th, td{
      padding:14px 14px;
      border-bottom:1px solid rgba(17,24,39,.07);
      text-align:left;
      vertical-align:top;
      font-size:13px;
      line-height:1.6;
    }
    th{
      background:rgba(21,101,255,.06);
      color:#0f2a67;
      font-weight:780;
      border-bottom:1px solid rgba(21,101,255,.14);
    }
    tr:last-child td{ border-bottom:0; }
    .td-strong{ font-weight:780; }
    .good{
      display:inline-flex; align-items:center; gap:8px;
      padding:6px 10px;
      border-radius:999px;
      border:1px solid rgba(22,163,74,.22);
      background:rgba(22,163,74,.10);
      color:#0f3d21;
      white-space:nowrap;
    }
    .good svg{ width:14px; height:14px; stroke:#16a34a; fill:none; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }
    .neutral{
      display:inline-flex; align-items:center; gap:8px;
      padding:6px 10px;
      border-radius:999px;
      border:1px solid rgba(17,24,39,.12);
      background:rgba(255,255,255,.55);
      color:var(--muted);
      white-space:nowrap;
    }

    .faq-grid{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap:14px;
      align-items:start;
    }
    .faq-list{
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    details.faq{
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.70);
      border-radius:var(--radius);
      padding:10px 12px;
      overflow:hidden;
      transition: box-shadow .18s ease, border-color .18s ease, transform .18s ease;
    }
    details.faq[open]{ border-color:rgba(21,101,255,.22); box-shadow:0 18px 44px rgba(17,24,39,.10); transform:translateY(-1px); }
    details.faq summary{
      cursor:pointer;
      list-style:none;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
      padding:6px 2px;
    }
    details.faq summary::-webkit-details-marker{ display:none; }
    .q{
      font-weight:780;
      letter-spacing:-.2px;
      font-size:14px;
      line-height:1.5;
    }
    .chev{
      width:28px; height:28px;
      border-radius:12px;
      border:1px solid rgba(17,24,39,.12);
      background:rgba(255,255,255,.6);
      display:grid;
      place-items:center;
      flex:0 0 auto;
      transition: transform .18s ease, border-color .18s ease;
      margin-top:-2px;
    }
    details.faq[open] .chev{ transform:rotate(180deg); border-color:rgba(21,101,255,.22); }
    .chev svg{ width:14px; height:14px; stroke:#1f6fff; fill:none; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }
    .a{
      color:var(--muted);
      font-size:13px;
      line-height:1.8;
      padding:8px 2px 10px;
    }
    .side-cta{
      position:sticky;
      top:92px;
      border:1px solid rgba(17,24,39,.08);
      background:linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.62));
      border-radius:var(--radius2);
      padding:16px;
      box-shadow:0 14px 40px rgba(17,24,39,.08);
      overflow:hidden;
    }
    .side-cta::before{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        radial-gradient(380px 160px at 25% 0%, rgba(21,101,255,.20), transparent 60%),
        radial-gradient(300px 140px at 90% 20%, rgba(124,58,237,.16), transparent 62%);
      opacity:.9;
      pointer-events:none;
    }
    .side-cta > *{ position:relative; z-index:1; }
    .side-cta h3{ margin:0 0 10px; font-size:16px; letter-spacing:-.2px; }
    .side-cta p{ margin:0 0 14px; color:var(--muted); font-size:13px; line-height:1.7; }
    .form{
      display:grid;
      grid-template-columns: 1fr;
      gap:10px;
    }
    label{
      display:block;
      font-size:12px;
      color:var(--muted2);
      margin-bottom:6px;
    }
    input, select, textarea{
      width:100%;
      border:1px solid rgba(17,24,39,.12);
      background:rgba(255,255,255,.85);
      border-radius:14px;
      padding:12px 12px;
      font-size:14px;
      outline:none;
      color:var(--text);
      transition: box-shadow .15s ease, border-color .15s ease, transform .15s ease;
    }
    textarea{ min-height:96px; resize:vertical; }
    input:focus, select:focus, textarea:focus{
      border-color:rgba(21,101,255,.34);
      box-shadow:var(--focus);
    }
    .form .row2{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
    }
    .form-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      align-items:center;
      margin-top:2px;
    }
    .hint{
      font-size:12px;
      color:var(--muted2);
      line-height:1.6;
      display:flex;
      gap:10px;
      align-items:flex-start;
    }
    .hint .i{
      width:18px; height:18px; border-radius:7px;
      border:1px solid rgba(17,24,39,.14);
      background:rgba(255,255,255,.55);
      display:grid;
      place-items:center;
      flex:0 0 auto;
      margin-top:2px;
    }
    .hint .i svg{ width:12px; height:12px; stroke:#6b7280; fill:none; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }

    .comments{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:14px;
    }
    .comment{
      padding:16px;
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.70);
      box-shadow:0 10px 30px rgba(17,24,39,.06);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      display:flex;
      flex-direction:column;
      gap:10px;
      min-height:170px;
    }
    .comment:hover{ transform:translateY(-2px); box-shadow:0 18px 44px rgba(17,24,39,.10); border-color:rgba(21,101,255,.20); }
    .comment .who{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
    }
    .avatar{
      width:34px; height:34px; border-radius:14px;
      border:1px solid rgba(21,101,255,.18);
      background:linear-gradient(135deg, rgba(21,101,255,.14), rgba(124,58,237,.10));
      display:grid; place-items:center;
      font-weight:900;
      color:#0f2a67;
    }
    .who .role{
      font-size:12px; color:var(--muted2);
      text-align:right; line-height:1.3;
    }
    .comment .text{
      color:var(--muted);
      font-size:13px; line-height:1.8;
      margin:0;
    }
    .comment .rate{
      display:flex; align-items:center; gap:8px;
      margin-top:auto;
      padding-top:6px;
      border-top:1px dashed rgba(17,24,39,.12);
      color:#0f2a67;
      font-weight:800;
      font-size:13px;
    }

    .tag-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .chip{
      padding:9px 11px;
      border-radius:999px;
      border:1px solid rgba(17,24,39,.12);
      background:rgba(255,255,255,.65);
      color:var(--muted);
      font-size:12px;
      transition: transform .15s ease, border-color .15s ease, background .15s ease;
      user-select:none;
    }
    .chip:hover{ transform:translateY(-1px); border-color:rgba(21,101,255,.24); background:rgba(21,101,255,.06); color:#0f2a67; }

    .showcase{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
      align-items:stretch;
    }
    .case-card{
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.70);
      border-radius:var(--radius2);
      padding:16px;
      box-shadow:0 14px 40px rgba(17,24,39,.08);
      overflow:hidden;
      position:relative;
      display:flex;
      flex-direction:column;
      gap:12px;
      min-height:260px;
    }
    .case-card::before{
      content:"";
      position:absolute;
      inset:auto -90px -120px auto;
      width:260px; height:260px;
      background:radial-gradient(circle at 30% 30%, rgba(21,101,255,.18), transparent 60%),
                 radial-gradient(circle at 70% 40%, rgba(124,58,237,.16), transparent 62%);
      pointer-events:none;
    }
    .case-card > *{ position:relative; z-index:1; }
    .case-top{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
    }
    .case-top h3{ margin:0; font-size:16px; letter-spacing:-.2px; }
    .case-top .badge2{
      padding:7px 10px;
      border-radius:999px;
      background:rgba(124,58,237,.10);
      border:1px solid rgba(124,58,237,.18);
      color:#4c1d95;
      font-size:12px;
      white-space:nowrap;
      font-weight:760;
    }
    .case-desc{ margin:0; color:var(--muted); font-size:13px; line-height:1.8; }
    .case-tags{
      display:flex; flex-wrap:wrap; gap:10px;
      margin-top:auto;
      padding-top:10px;
      border-top:1px solid rgba(17,24,39,.08);
    }

    .articles{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap:14px;
      align-items:start;
    }
    .article-list{
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.70);
      border-radius:var(--radius2);
      padding:10px;
      box-shadow:0 14px 40px rgba(17,24,39,.08);
    }
    .article-item{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
      padding:12px 12px;
      border-radius:16px;
      border:1px solid transparent;
      transition: border-color .15s ease, background .15s ease, transform .15s ease;
    }
    .article-item:hover{
      background:rgba(21,101,255,.06);
      border-color:rgba(21,101,255,.16);
      transform:translateY(-1px);
    }
    .article-item + .article-item{ margin-top:6px; }
    .article-left{
      display:flex; flex-direction:column; gap:6px;
      min-width:0;
    }
    .article-title{
      font-weight:820;
      font-size:14px;
      letter-spacing:-.2px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .article-meta{
      color:var(--muted2);
      font-size:12px;
      display:flex;
      gap:10px;
      flex-wrap:wrap;
    }
    .article-open{
      flex:0 0 auto;
      width:34px; height:34px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.12);
      background:rgba(255,255,255,.6);
      display:grid;
      place-items:center;
    }
    .article-open svg{ width:16px; height:16px; stroke:#1f6fff; fill:none; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }

    .network{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
    }
    .timeline{
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.70);
      border-radius:var(--radius2);
      padding:16px;
      box-shadow:0 14px 40px rgba(17,24,39,.08);
      overflow:hidden;
      position:relative;
    }
    .timeline::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(500px 240px at 10% 0%, rgba(21,101,255,.12), transparent 60%);
      pointer-events:none;
    }
    .timeline > *{ position:relative; z-index:1; }
    .timeline h3{ margin:0 0 10px; font-size:16px; }
    .time-list{
      display:flex;
      flex-direction:column;
      gap:10px;
      margin-top:4px;
    }
    .time-item{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:10px 12px;
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.58);
      border-radius:16px;
    }
    .time-dot{
      width:14px; height:14px; border-radius:6px;
      background:linear-gradient(135deg, rgba(21,101,255,.95), rgba(124,58,237,.85));
      box-shadow:0 0 0 6px rgba(21,101,255,.12);
      margin-top:3px;
      flex:0 0 auto;
    }
    .time-item b{ font-size:13px; letter-spacing:-.2px; }
    .time-item span{ display:block; color:var(--muted); font-size:12px; line-height:1.6; margin-top:4px; }

    .footer{
      padding:20px 0 26px;
      border-top:1px solid rgba(17,24,39,.08);
      background:linear-gradient(180deg, rgba(255,255,255,.45), rgba(243,246,255,.95));
    }
    .footer-grid{
      display:flex;
      justify-content:space-between;
      gap:14px;
      align-items:flex-start;
      flex-wrap:wrap;
    }
    .foot-col{
      min-width:220px;
      flex:1;
    }
    .foot-col h3{
      margin:0 0 10px;
      font-size:14px;
      letter-spacing:-.2px;
    }
    .foot-col p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.7;
    }
    .foot-links{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      margin-top:12px;
    }
    .foot-links a{
      font-size:13px;
      color:#0f2a67;
      border:1px solid rgba(21,101,255,.18);
      background:rgba(21,101,255,.06);
      padding:8px 10px;
      border-radius:999px;
      transition: transform .15s ease, border-color .15s ease, background .15s ease;
      white-space:nowrap;
    }
    .foot-links a:hover{ transform:translateY(-1px); border-color:rgba(21,101,255,.30); background:rgba(21,101,255,.10); }
    .legal{
      margin-top:14px;
      color:var(--muted2);
      font-size:12px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      flex-wrap:wrap;
      gap:10px;
      border-top:1px dashed rgba(17,24,39,.14);
      padding-top:12px;
    }
    .legal .small-a{
      color:#0f2a67;
      border-bottom:1px dashed rgba(21,101,255,.35);
      padding-bottom:2px;
    }

    .float-widgets{
      position:fixed;
      right:14px;
      bottom:14px;
      z-index:80;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-end;
    }
    .float-card{
      width:52px; height:52px;
      border-radius:18px;
      border:1px solid rgba(17,24,39,.12);
      background:rgba(255,255,255,.78);
      backdrop-filter: blur(10px);
      box-shadow:0 18px 44px rgba(17,24,39,.12);
      display:grid;
      place-items:center;
      cursor:pointer;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      user-select:none;
      position:relative;
    }
    .float-card:hover{ transform:translateY(-2px); border-color:rgba(21,101,255,.24); }
    .float-card svg{ width:20px; height:20px; stroke:#1f6fff; fill:none; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }
    .kefu-pop{
      position:absolute;
      right:62px;
      bottom:0;
      width:220px;
      background:rgba(255,255,255,.92);
      border:1px solid rgba(17,24,39,.12);
      border-radius:18px;
      box-shadow:0 18px 44px rgba(17,24,39,.16);
      padding:12px;
      display:none;
      transform-origin: right bottom;
      animation: fadeInUp .18s ease both;
    }
    @keyframes fadeInUp{
      from{ opacity:0; transform:translateY(6px) scale(.98) }
      to{ opacity:1; transform:translateY(0) scale(1) }
    }
    .float-card.kefu:hover .kefu-pop{ display:block; }
    .kefu-pop b{
      display:block;
      font-size:13px;
      margin-bottom:8px;
      letter-spacing:-.2px;
    }
    .kefu-qr{
      width:100%;
      border-radius:12px;
      border:1px solid rgba(17,24,39,.10);
      overflow:hidden;
    }
    .kefu-qr img{
      width:100%;
      height:auto;
      display:block;
    }
    .toast{
      position:fixed;
      left:50%;
      bottom:18px;
      transform:translateX(-50%);
      background:rgba(17,24,39,.92);
      color:#fff;
      padding:10px 12px;
      border-radius:14px;
      font-size:13px;
      box-shadow:0 18px 44px rgba(17,24,39,.22);
      opacity:0;
      pointer-events:none;
      transition:opacity .18s ease, transform .18s ease;
      z-index:90;
      max-width:92vw;
      text-align:center;
    }
    .toast.show{
      opacity:1;
      transform:translateX(-50%) translateY(-2px);
    }

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

    @media (max-width: 980px){
      .hero-grid{ grid-template-columns:1fr; }
      .side-cta{ position:relative; top:auto; }
      .cards-3{ grid-template-columns:1fr; }
      .steps{ grid-template-columns:1fr 1fr; }
      .split{ grid-template-columns:1fr; }
      .faq-grid{ grid-template-columns:1fr; }
      .comments{ grid-template-columns:1fr; }
      .showcase{ grid-template-columns:1fr; }
      .articles{ grid-template-columns:1fr; }
      .network{ grid-template-columns:1fr; }
      .form .row2{ grid-template-columns:1fr; }
      table{ min-width:640px; }
    }
    @media (max-width: 820px){
      nav{ display:none; }
      .mobile-toggle{ display:inline-flex; align-items:center; gap:10px; }
      .mobile-panel{ }
    }