:root{
      --bg0:#ffffff;
      --bg1:#fbfaf8;
      --text:#15161a;
      --muted:#5b606b;
      --muted2:#7a808c;
      --line:rgba(20,20,30,.10);
      --card:rgba(255,255,255,.78);
      --card2:rgba(255,255,255,.60);
      --shadow: 0 18px 40px rgba(15,18,28,.10);
      --shadow2: 0 10px 24px rgba(15,18,28,.10);
      --ring: rgba(120,92,255,.28);
      --brand1:#7a5cff;
      --brand2:#20c997;
      --brand3:#ff5ea8;
      --brand4:#00a3ff;
      --brand5:#ffb020;
      --focus:#2b62ff;
      --btnText:#0b0d14;
      --radius:18px;
      --radius2:26px;
      --container: 1120px;
      --padX: 18px;
      --ease: cubic-bezier(.2,.8,.2,1);
    }

    *{ box-sizing:border-box; }
    html, body { height:100%; }
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB","Microsoft YaHei", Arial, sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 600px at 12% -10%, rgba(122,92,255,.18), transparent 52%),
        radial-gradient(900px 520px at 88% 6%, rgba(32,201,151,.14), transparent 50%),
        radial-gradient(980px 520px at 60% 24%, rgba(0,163,255,.12), transparent 55%),
        linear-gradient(180deg, var(--bg1), var(--bg0));
      overflow-x:hidden;
    }

    a{ color:inherit; text-decoration:none; }
    .container{
      width: min(var(--container), calc(100% - var(--padX)*2));
      margin:0 auto;
    }

    .skip-link{
      position:absolute; left:-999px; top:auto; width:1px; height:1px; overflow:hidden;
    }
    .skip-link:focus{
      left:16px; top:12px; width:auto; height:auto; padding:10px 14px;
      background:#fff; border:1px solid var(--line); border-radius:12px; z-index:9999;
      box-shadow: var(--shadow2);
    }

    header{
      position:sticky; top:0; z-index:50;
      backdrop-filter: blur(10px);
      background: linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.60));
      border-bottom:1px solid rgba(20,20,30,.08);
    }
    .nav-wrap{
      display:flex; align-items:center; justify-content:space-between; gap:14px;
      padding:14px 0;
    }
    .brand{
      display:flex; align-items:center; gap:10px;
      min-width: 220px;
    }
    .ai-page-logo{
      width:46px; height:46px; object-fit:contain;
      border-radius:14px;
      background: rgba(255,255,255,.7);
      border:1px solid rgba(20,20,30,.08);
      box-shadow: 0 10px 22px rgba(15,18,28,.08);
    }
    .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(--muted);
      margin-top:2px;
    }

    .nav{
      display:flex; align-items:center; gap:12px;
    }
    .nav a{
      font-size:13px; color:rgba(15,16,26,.82);
      padding:8px 10px; border-radius:12px;
      border:1px solid transparent;
      transition: transform .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
      white-space:nowrap;
    }
    .nav a:hover{
      background: rgba(122,92,255,.08);
      border-color: rgba(122,92,255,.18);
      transform: translateY(-1px);
    }

    .nav-cta{
      display:flex; align-items:center; gap:10px;
      min-width: 240px;
      justify-content:flex-end;
    }

    .btn{
      appearance:none;
      border:1px solid rgba(20,20,30,.14);
      background:#fff;
      color:var(--btnText);
      padding:10px 14px;
      border-radius:14px;
      font-size:13px;
      line-height:1;
      cursor:pointer;
      transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
      box-shadow: 0 10px 20px rgba(15,18,28,.06);
      display:inline-flex; align-items:center; gap:10px;
      white-space:nowrap;
    }
    .btn:focus{ outline:none; box-shadow: 0 0 0 4px rgba(43,98,255,.20), 0 10px 20px rgba(15,18,28,.08); border-color: rgba(43,98,255,.45); }
    .btn:hover{ transform: translateY(-1px); box-shadow: 0 16px 32px rgba(15,18,28,.10); }
    .btn .dot{
      width:10px; height:10px; border-radius:999px;
      background: radial-gradient(circle at 30% 30%, #fff, rgba(255,255,255,.2)), linear-gradient(135deg, var(--brand1), var(--brand4));
      box-shadow: 0 0 0 3px rgba(122,92,255,.18);
    }

    .btn-primary{
      border-color: rgba(122,92,255,.26);
      background: linear-gradient(135deg, rgba(122,92,255,.15), rgba(32,201,151,.10)) , #fff;
      position:relative;
      overflow:hidden;
    }
    .btn-primary::after{
      content:"";
      position:absolute; inset:-2px;
      background: radial-gradient(420px 120px at 20% 10%, rgba(122,92,255,.26), transparent 60%),
                  radial-gradient(360px 120px at 80% 20%, rgba(32,201,151,.22), transparent 55%);
      opacity:.9;
      pointer-events:none;
    }
    .btn-primary span{ position:relative; z-index:1; }

    .icon{
      width:18px; height:18px; display:inline-block;
    }

    .burger{
      display:none;
      width:44px; height:44px;
      border-radius:14px;
      border:1px solid rgba(20,20,30,.14);
      background:#fff;
      cursor:pointer;
      align-items:center; justify-content:center;
      box-shadow: 0 10px 20px rgba(15,18,28,.06);
      transition: transform .2s var(--ease), box-shadow .2s var(--ease);
    }
    .burger:hover{ transform: translateY(-1px); box-shadow: 0 16px 32px rgba(15,18,28,.10); }
    .burger:focus{ outline:none; box-shadow: 0 0 0 4px rgba(43,98,255,.20), 0 16px 32px rgba(15,18,28,.10); }
    .burger i{
      width:18px; height:2px; background:rgba(15,16,26,.85);
      position:relative; display:block;
      border-radius:999px;
    }
    .burger i::before,.burger i::after{
      content:"";
      position:absolute; left:0; width:18px; height:2px; background:rgba(15,16,26,.85);
      border-radius:999px;
      transition: transform .25s var(--ease), top .25s var(--ease), opacity .25s var(--ease);
    }
    .burger i::before{ top:-6px; }
    .burger i::after{ top:6px; }

    .mobile-panel{
      display:none;
      padding: 12px 0 18px;
    }
    .mobile-panel .mnav{
      display:flex; flex-direction:column; gap:10px;
      padding-top:10px;
    }
    .mobile-panel .mnav a{
      padding:12px 12px;
      border:1px solid rgba(20,20,30,.10);
      border-radius:16px;
      background: rgba(255,255,255,.7);
      font-size:14px;
      color: rgba(15,16,26,.88);
    }
    .mobile-panel .mnav a:hover{ border-color: rgba(122,92,255,.28); background: rgba(122,92,255,.06); }

    .hero{
      padding: 28px 0 8px;
    }
    .hero-shell{
      position:relative;
      border-radius: var(--radius2);
      border: 1px solid rgba(20,20,30,.08);
      background:
        radial-gradient(900px 260px at 10% 0%, rgba(122,92,255,.28), transparent 60%),
        radial-gradient(780px 240px at 90% 10%, rgba(32,201,151,.22), transparent 58%),
        radial-gradient(620px 220px at 60% 40%, rgba(0,163,255,.16), transparent 62%),
        linear-gradient(180deg, rgba(255,255,255,.68), rgba(255,255,255,.44));
      box-shadow: var(--shadow);
      overflow:hidden;
      padding: 26px 18px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap:18px;
      align-items:stretch;
    }

    .hero-left{
      padding: 14px 6px 8px 6px;
    }

    .kicker{
      display:flex; flex-wrap:wrap; gap:10px; align-items:center;
      margin-bottom:14px;
    }
    .pill{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background: rgba(255,255,255,.75);
      border:1px solid rgba(20,20,30,.10);
      box-shadow: 0 12px 22px rgba(15,18,28,.06);
      font-size:12px;
      color: rgba(15,16,26,.80);
    }
    .spark{
      width:10px; height:10px; border-radius:3px;
      background: linear-gradient(135deg, var(--brand3), var(--brand1));
      box-shadow: 0 0 0 3px rgba(255,94,168,.14);
      transform: rotate(12deg);
    }

    .h1{
      margin:0;
      font-size: clamp(22px, 3.4vw, 38px);
      letter-spacing: .2px;
      line-height:1.15;
    }
    .sub{
      margin: 12px 0 18px;
      color: var(--muted);
      font-size: 14.5px;
      line-height:1.7;
      max-width: 60ch;
    }

    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
      margin-bottom:16px;
    }

    .btn-ghost{
      background: rgba(255,255,255,.55);
      border-color: rgba(20,20,30,.12);
      box-shadow:none;
    }
    .btn-ghost:hover{ background: rgba(255,255,255,.72); box-shadow: 0 16px 32px rgba(15,18,28,.08); }

    .trust-row{
      display:flex; flex-wrap:wrap; gap:12px;
      align-items:center;
      margin-top:12px;
    }
    .trust-item{
      display:flex; align-items:flex-start; gap:10px;
      padding:10px 12px;
      border-radius:16px;
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.65);
      min-width: 200px;
    }
    .badge-icon{
      width:34px; height:34px; border-radius:14px;
      background:
        radial-gradient(circle at 30% 25%, rgba(255,255,255,.9), rgba(255,255,255,.2)),
        linear-gradient(135deg, rgba(122,92,255,.35), rgba(0,163,255,.25));
      border: 1px solid rgba(122,92,255,.25);
      box-shadow: 0 12px 24px rgba(122,92,255,.18);
      display:flex; align-items:center; justify-content:center;
    }
    .badge-icon svg{ width:18px; height:18px; }
    .trust-item strong{
      font-size:13px; display:block; margin-top:2px;
    }
    .trust-item span{
      font-size:12px; color:var(--muted2); line-height:1.4;
      display:block;
      margin-top:4px;
    }

    .hero-right{
      padding: 10px 6px;
      display:flex; flex-direction:column; gap:12px;
    }
    .data-card{
      flex: 1;
      border-radius: 22px;
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.62);
      box-shadow: 0 16px 30px rgba(15,18,28,.06);
      padding: 14px;
      position:relative;
      overflow:hidden;
    }
    .data-card::before{
      content:"";
      position:absolute; inset:-80px -60px auto auto;
      width:220px; height:220px;
      background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.45), rgba(255,255,255,0) 55%),
                  radial-gradient(circle at 60% 60%, rgba(122,92,255,.35), rgba(122,92,255,0) 58%),
                  radial-gradient(circle at 30% 65%, rgba(32,201,151,.25), rgba(32,201,151,0) 58%);
      transform: rotate(12deg);
      pointer-events:none;
      opacity:.9;
    }
    .metrics{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
      position:relative;
      z-index:1;
    }
    .metric{
      border-radius: 18px;
      border: 1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.58);
      padding: 12px;
      min-height: 92px;
      display:flex; flex-direction:column; justify-content:space-between;
      transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
    }
    .metric:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 36px rgba(15,18,28,.10);
      border-color: rgba(122,92,255,.25);
    }
    .metric .t{
      font-size:12px; color:var(--muted2);
      display:flex; align-items:center; gap:8px;
    }
    .metric .t i{
      width:10px; height:10px; border-radius:4px;
      background: linear-gradient(135deg, rgba(122,92,255,.85), rgba(32,201,151,.7));
      box-shadow: 0 0 0 3px rgba(122,92,255,.16);
    }
    .metric strong{
      font-size: 18px; letter-spacing:.2px;
    }
    .metric span{
      font-size:12px; color:var(--muted2);
      margin-top:6px;
      line-height:1.3;
    }

    .flow-mini{
      border-radius: 22px;
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.54);
      padding: 14px;
      position:relative;
      overflow:hidden;
    }
    .flow-mini::after{
      content:"";
      position:absolute; left:-10px; right:-10px; top:-20px; height:70px;
      background: linear-gradient(90deg, rgba(122,92,255,.26), rgba(32,201,151,.18), rgba(0,163,255,.18));
      opacity:.35;
      filter: blur(14px);
      pointer-events:none;
    }
    .flow-mini h3{
      margin:0 0 8px;
      font-size:14px;
      position:relative; z-index:1;
    }
    .steps-row{
      display:flex; gap:8px; flex-wrap:wrap;
      position:relative; z-index:1;
    }
    .step-chip{
      display:flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.58);
      font-size:12px;
      color: rgba(15,16,26,.86);
    }
    .step-chip b{
      width:22px; height:22px; border-radius:999px;
      display:inline-flex; align-items:center; justify-content:center;
      font-size:12px;
      background: linear-gradient(135deg, rgba(122,92,255,.20), rgba(32,201,151,.14));
      border:1px solid rgba(122,92,255,.20);
    }

    main{ padding: 10px 0 36px; }

    section{
      padding: 26px 0;
    }
    .section-head{
      display:flex; align-items:flex-end; justify-content:space-between; gap:16px;
      margin-bottom:16px;
    }
    .section-head h2{
      margin:0;
      font-size: 20px;
      letter-spacing:.2px;
    }
    .section-head p{
      margin:0;
      color: var(--muted);
      font-size: 13.5px;
      line-height:1.6;
      max-width: 64ch;
    }

    .grid-3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    .grid-2{
      display:grid;
      grid-template-columns: repeat(2, 1fr);
      gap:12px;
    }
    .card{
      border-radius: var(--radius);
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.66);
      box-shadow: 0 14px 26px rgba(15,18,28,.05);
      padding: 14px;
      transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
      position:relative;
      overflow:hidden;
    }
    .card::before{
      content:"";
      position:absolute; inset:-1px;
      background:
        radial-gradient(520px 140px at 10% -10%, rgba(122,92,255,.20), transparent 52%),
        radial-gradient(440px 140px at 90% 0%, rgba(32,201,151,.16), transparent 50%);
      opacity:0;
      transition: opacity .25s var(--ease);
      pointer-events:none;
    }
    .card:hover{
      transform: translateY(-2px);
      border-color: rgba(122,92,255,.22);
      box-shadow: 0 20px 46px rgba(15,18,28,.10);
    }
    .card:hover::before{ opacity:1; }
    .card > *{ position:relative; z-index:1; }

    .card h3{
      margin: 0 0 8px;
      font-size:15px;
      letter-spacing:.2px;
    }
    .card p{
      margin:0;
      color: var(--muted);
      font-size: 13.5px;
      line-height:1.7;
    }
    .feature-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
      margin-bottom:10px;
    }
    .feature-ico{
      width:40px; height:40px; border-radius:16px;
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.70);
      display:flex; align-items:center; justify-content:center;
      box-shadow: 0 14px 24px rgba(15,18,28,.06);
      flex:0 0 auto;
    }
    .feature-ico svg{ width:20px; height:20px; }
    .tag{
      font-size:12px;
      padding:7px 10px;
      border-radius:999px;
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.58);
      color: rgba(15,16,26,.82);
      white-space:nowrap;
    }

    .steps{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap:12px;
    }
    .step-card{
      padding: 14px;
      border-radius: var(--radius);
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.64);
      box-shadow: 0 14px 26px rgba(15,18,28,.05);
      position:relative;
      overflow:hidden;
    }
    .step-card::after{
      content:"";
      position:absolute; left:-40px; top:-60px;
      width:120px; height:120px;
      border-radius:50%;
      background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.65), rgba(255,255,255,0) 55%),
                  radial-gradient(circle at 60% 60%, rgba(122,92,255,.35), rgba(122,92,255,0) 58%);
      opacity:.65;
      pointer-events:none;
    }
    .step-no{
      width:34px; height:34px; border-radius:14px;
      display:flex; align-items:center; justify-content:center;
      border:1px solid rgba(20,20,30,.12);
      background: rgba(255,255,255,.70);
      font-size:13px;
      position:relative; z-index:1;
      box-shadow: 0 12px 24px rgba(122,92,255,.12);
    }
    .step-card h3{
      margin:10px 0 8px;
      font-size:15px;
      position:relative; z-index:1;
    }
    .step-card p{
      margin:0;
      color:var(--muted);
      font-size:13.5px;
      line-height:1.7;
      position:relative; z-index:1;
    }

    .compare{
      border-radius: var(--radius2);
      border:1px solid rgba(20,20,30,.10);
      background:
        radial-gradient(800px 250px at 12% 0%, rgba(122,92,255,.20), transparent 55%),
        radial-gradient(700px 250px at 88% 10%, rgba(255,94,168,.14), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.68), rgba(255,255,255,.48));
      padding: 16px;
      box-shadow: var(--shadow2);
      overflow:hidden;
    }
    .compare-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:14px;
      flex-wrap:wrap;
      margin-bottom:14px;
    }
    .rating{
      display:flex; gap:12px; align-items:center; flex-wrap:wrap;
    }
    .stars{
      display:flex; gap:6px; align-items:center;
    }
    .star{
      width:18px; height:18px;
      fill: rgba(255,176,32,.95);
      filter: drop-shadow(0 6px 10px rgba(255,176,32,.25));
    }
    .rating strong{
      font-size:28px; letter-spacing:.2px;
    }
    .rating small{
      color:var(--muted);
      font-size:13px;
      display:block;
      margin-top:4px;
    }

    .compare table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      overflow:hidden;
      border-radius: 18px;
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.62);
    }
    .compare thead th{
      text-align:left;
      font-size:13px;
      color:rgba(15,16,26,.88);
      padding:12px 12px;
      border-bottom:1px solid rgba(20,20,30,.10);
      background: linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.58));
      white-space:nowrap;
    }
    .compare tbody td{
      padding:12px 12px;
      border-bottom:1px solid rgba(20,20,30,.08);
      color: rgba(15,16,26,.86);
      font-size:13.5px;
      line-height:1.6;
    }
    .compare tbody tr:last-child td{ border-bottom:none; }
    .badge-ok{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(32,201,151,.25);
      background: rgba(32,201,151,.10);
      color: rgba(10,90,70,.95);
      font-weight:600;
      font-size:12.5px;
      white-space:nowrap;
    }
    .badge-mid{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(255,176,32,.30);
      background: rgba(255,176,32,.10);
      color: rgba(105,70,0,.92);
      font-weight:600;
      font-size:12.5px;
      white-space:nowrap;
    }

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

    .timeline{
      display:flex; flex-direction:column; gap:10px;
    }
    .titem{
      display:flex; gap:12px; align-items:flex-start;
      padding: 12px;
      border-radius: 18px;
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.62);
    }
    .tdate{
      flex:0 0 auto;
      width:92px;
      font-size:12px;
      color:var(--muted2);
      line-height:1.2;
      padding-top:2px;
    }
    .titem strong{
      display:block;
      margin-bottom:4px;
      font-size:14px;
    }
    .titem span{
      color:var(--muted);
      font-size:13.5px;
      line-height:1.6;
      display:block;
    }

    .list{
      margin:0; padding-left:18px;
      color:var(--muted);
      font-size:13.5px;
      line-height:1.7;
    }
    .list li{ margin: 8px 0; }

    .faq{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
    }
    details{
      border-radius: var(--radius);
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.66);
      box-shadow: 0 14px 26px rgba(15,18,28,.05);
      padding: 10px 12px;
      transition: border-color .2s var(--ease), box-shadow .2s var(--ease), transform .2s var(--ease);
    }
    details[open]{
      border-color: rgba(122,92,255,.26);
      box-shadow: 0 22px 48px rgba(15,18,28,.10);
      transform: translateY(-1px);
    }
    summary{
      cursor:pointer;
      list-style:none;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding: 6px 0;
      font-size:14.2px;
      font-weight:650;
      color: rgba(15,16,26,.92);
    }
    summary::-webkit-details-marker{ display:none; }
    .sum-icon{
      width:34px; height:34px;
      border-radius:14px;
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.70);
      display:flex; align-items:center; justify-content:center;
      flex: 0 0 auto;
    }
    .sum-icon svg{
      width:18px; height:18px;
      transition: transform .25s var(--ease);
    }
    details[open] .sum-icon svg{ transform: rotate(180deg); }
    .faq p{
      margin: 0;
      padding: 6px 0 4px;
      color: var(--muted);
      font-size: 13.5px;
      line-height: 1.7;
    }

    .reviews{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    .review-card{
      border-radius: var(--radius);
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.66);
      box-shadow: 0 14px 26px rgba(15,18,28,.05);
      padding: 14px;
      position:relative; overflow:hidden;
      transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
    }
    .review-card:hover{
      transform: translateY(-2px);
      border-color: rgba(32,201,151,.24);
      box-shadow: 0 20px 46px rgba(15,18,28,.10);
    }
    .review-card::before{
      content:"";
      position:absolute; inset:-1px;
      background:
        radial-gradient(520px 160px at 15% -10%, rgba(32,201,151,.18), transparent 54%),
        radial-gradient(420px 160px at 95% 0%, rgba(122,92,255,.14), transparent 52%);
      opacity:.0;
      transition: opacity .25s var(--ease);
      pointer-events:none;
    }
    .review-card:hover::before{ opacity:1; }
    .review-card > *{ position:relative; z-index:1; }
    .review-head{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom:10px;
    }
    .avatar{
      width:44px; height:44px; border-radius:18px;
      border:1px solid rgba(20,20,30,.10);
      background:
        radial-gradient(circle at 30% 25%, rgba(255,255,255,.9), rgba(255,255,255,0) 52%),
        linear-gradient(135deg, rgba(255,94,168,.24), rgba(122,92,255,.20), rgba(32,201,151,.18));
      box-shadow: 0 14px 26px rgba(15,18,28,.06);
      display:flex; align-items:center; justify-content:center;
      color: rgba(15,16,26,.88);
      font-weight:800;
    }
    .review-meta strong{
      font-size:14px; display:block;
    }
    .review-meta span{
      font-size:12.5px; color:var(--muted2);
    }
    .review-text{
      margin:0;
      color:var(--muted);
      font-size:13.5px;
      line-height:1.7;
    }
    .review-foot{
      margin-top:12px;
      display:flex; gap:8px; flex-wrap:wrap;
    }
    .chip{
      font-size:12px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.58);
      color: rgba(15,16,26,.84);
      white-space:nowrap;
    }

    .cases{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    .case-media{
      border-radius: 18px;
      border:1px solid rgba(20,20,30,.10);
      background:
        radial-gradient(500px 160px at 20% 0%, rgba(122,92,255,.20), transparent 56%),
        linear-gradient(180deg, rgba(255,255,255,.75), rgba(255,255,255,.55));
      overflow:hidden;
      position:relative;
      box-shadow: 0 16px 30px rgba(15,18,28,.06);
    }
    .case-media .media-bar{
      position:absolute; left:12px; right:12px; top:12px;
      display:flex; gap:8px; flex-wrap:wrap;
      z-index:2;
    }
    .case-media .media-bar em{
      font-style:normal;
      font-size:12px;
      padding:8px 10px;
      border-radius:999px;
      background: rgba(255,255,255,.68);
      border:1px solid rgba(20,20,30,.10);
      color: rgba(15,16,26,.84);
      white-space:nowrap;
    }
    .case-media .shape{
      height: 128px;
      background:
        radial-gradient(220px 90px at 20% 40%, rgba(255,94,168,.22), transparent 60%),
        radial-gradient(240px 110px at 80% 25%, rgba(122,92,255,.26), transparent 60%),
        radial-gradient(220px 110px at 55% 85%, rgba(32,201,151,.18), transparent 65%),
        linear-gradient(135deg, rgba(0,163,255,.10), rgba(122,92,255,.12));
      position:relative;
    }
    .case-media .shape::after{
      content:"";
      position:absolute; inset:0;
      background:
        repeating-linear-gradient(90deg, rgba(255,255,255,.20), rgba(255,255,255,0) 10px),
        repeating-linear-gradient(0deg, rgba(255,255,255,.16), rgba(255,255,255,0) 12px);
      opacity:.55;
      mask-image: radial-gradient(circle at 50% 50%, black 35%, transparent 70%);
    }
    .case-body{
      padding: 12px 2px 0;
    }
    .case-body h3{
      margin: 0 0 8px;
      font-size:15px;
    }
    .case-body p{
      margin:0;
      color:var(--muted);
      font-size:13.5px;
      line-height:1.7;
    }

    .articles{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
    }
    .article-list{
      display:flex; flex-direction:column; gap:10px;
    }
    .alink{
      display:flex; gap:12px; align-items:flex-start;
      padding: 12px;
      border-radius: var(--radius);
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.66);
      box-shadow: 0 14px 26px rgba(15,18,28,.05);
      transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
    }
    .alink:hover{
      transform: translateY(-2px);
      border-color: rgba(0,163,255,.22);
      box-shadow: 0 20px 46px rgba(15,18,28,.10);
    }
    .alink .num{
      width:40px; height:40px; border-radius:16px;
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.70);
      display:flex; align-items:center; justify-content:center;
      font-weight:800; font-size:13px;
      box-shadow: 0 14px 26px rgba(15,18,28,.06);
      flex: 0 0 auto;
    }
    .alink .meta strong{
      display:block;
      font-size:14px;
      margin-top:2px;
      margin-bottom:5px;
    }
    .alink .meta span{
      display:block;
      color:var(--muted);
      font-size:13.5px;
      line-height:1.6;
    }
    .mini-cta{
      margin-top:12px;
      display:flex; gap:12px; flex-wrap:wrap;
      align-items:center;
    }

    .form-card{
      border-radius: var(--radius2);
      border:1px solid rgba(20,20,30,.10);
      background:
        radial-gradient(720px 240px at 10% 0%, rgba(122,92,255,.22), transparent 54%),
        radial-gradient(620px 240px at 90% 10%, rgba(32,201,151,.18), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.72), rgba(255,255,255,.52));
      box-shadow: var(--shadow2);
      padding: 16px;
      overflow:hidden;
    }
    .form-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      align-items:start;
    }
    .field{
      display:flex; flex-direction:column; gap:8px;
    }
    label{
      font-size:12.5px;
      color: rgba(15,16,26,.84);
      font-weight:650;
    }
    input, select, textarea{
      width:100%;
      padding: 12px 12px;
      border-radius: 14px;
      border:1px solid rgba(20,20,30,.14);
      background: rgba(255,255,255,.76);
      color: rgba(15,16,26,.92);
      outline:none;
      transition: box-shadow .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
      font-size:14px;
    }
    textarea{ min-height: 110px; resize: vertical; }
    input:focus, select:focus, textarea:focus{
      border-color: rgba(43,98,255,.45);
      box-shadow: 0 0 0 4px rgba(43,98,255,.18);
      background:#fff;
    }
    .form-foot{
      display:flex; gap:12px; align-items:center; justify-content:space-between;
      margin-top:12px; flex-wrap:wrap;
    }
    .fine{
      color: var(--muted2);
      font-size:12.5px;
      line-height:1.5;
      max-width: 62ch;
    }

    footer{
      border-top: 1px solid rgba(20,20,30,.10);
      background:
        radial-gradient(760px 260px at 20% 0%, rgba(122,92,255,.16), transparent 56%),
        radial-gradient(680px 240px at 85% 10%, rgba(32,201,151,.12), transparent 60%),
        linear-gradient(180deg, rgba(255,255,255,.66), rgba(255,255,255,.52));
      padding: 22px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap:14px;
      align-items:start;
    }
    .foot-left{
      display:flex; gap:12px; align-items:flex-start;
    }
    .foot-logo{
      width:56px; height:56px;
      border-radius:20px;
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.65);
      box-shadow: 0 18px 36px rgba(15,18,28,.08);
      display:flex; align-items:center; justify-content:center;
      overflow:hidden;
      flex: 0 0 auto;
    }
    .foot-logo img{
      width:48px; height:48px;
      object-fit:contain;
    }
    .foot-left strong{
      display:block;
      font-size:14.5px;
      margin-top:2px;
    }
    .foot-left span{
      display:block;
      color: var(--muted);
      font-size:13.5px;
      margin-top:6px;
      line-height:1.7;
    }
    .foot-right{
      display:flex; flex-direction:column; gap:10px;
      align-items:flex-start;
    }
    .foot-links{
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .foot-links a{
      font-size:13px;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.62);
      transition: transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
      white-space:nowrap;
      color: rgba(15,16,26,.86);
    }
    .foot-links a:hover{
      transform: translateY(-1px);
      border-color: rgba(122,92,255,.24);
      box-shadow: 0 18px 36px rgba(15,18,28,.10);
    }
    .copyright{
      color: var(--muted2);
      font-size:12.5px;
      margin-top:6px;
      width:100%;
      border-top:1px dashed rgba(20,20,30,.14);
      padding-top:12px;
    }

    .float-kefu{
      position:fixed;
      right:14px;
      bottom:14px;
      z-index:80;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-end;
    }
    .kefu-btn{
      width:56px; height:56px;
      border-radius: 20px;
      border:1px solid rgba(20,20,30,.12);
      background:
        radial-gradient(circle at 30% 20%, rgba(255,255,255,.85), rgba(255,255,255,0) 48%),
        linear-gradient(135deg, rgba(122,92,255,.35), rgba(0,163,255,.18), rgba(32,201,151,.18)),
        #fff;
      box-shadow: 0 18px 40px rgba(15,18,28,.16);
      cursor:pointer;
      display:flex;
      align-items:center;
      justify-content:center;
      transition: transform .2s var(--ease), box-shadow .2s var(--ease);
    }
    .kefu-btn:hover{ transform: translateY(-2px); box-shadow: 0 24px 56px rgba(15,18,28,.22); }
    .kefu-btn:focus{ outline:none; box-shadow: 0 0 0 4px rgba(43,98,255,.20), 0 24px 56px rgba(15,18,28,.22); }
    .kefu-pop{
      width:min(320px, calc(100vw - 28px));
      border-radius: 22px;
      border:1px solid rgba(20,20,30,.12);
      background: rgba(255,255,255,.86);
      box-shadow: 0 26px 70px rgba(15,18,28,.20);
      overflow:hidden;
      transform-origin: 90% 100%;
      animation: popIn .22s var(--ease) both;
      display:none;
    }
    .kefu-pop.show{ display:block; }
    @keyframes popIn{
      from{ opacity:0; transform: translateY(8px) scale(.98); }
      to{ opacity:1; transform: translateY(0) scale(1); }
    }
    .kefu-pop-head{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      padding: 12px 12px;
      background: linear-gradient(135deg, rgba(122,92,255,.14), rgba(32,201,151,.10));
      border-bottom:1px solid rgba(20,20,30,.10);
    }
    .kefu-pop-head strong{ font-size:13.5px; }
    .close-btn{
      width:36px; height:36px; border-radius:14px;
      border:1px solid rgba(20,20,30,.12);
      background:#fff;
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .2s var(--ease), box-shadow .2s var(--ease);
    }
    .close-btn:hover{ transform: translateY(-1px); box-shadow: 0 14px 26px rgba(15,18,28,.10); }
    .kefu-pop-body{
      padding: 12px;
      display:flex; gap:12px; align-items:flex-start;
    }
    .qrcode{
      width:96px; height:96px;
      border-radius:18px;
      border:1px solid rgba(20,20,30,.12);
      background: rgba(255,255,255,.76);
      box-shadow: 0 16px 30px rgba(15,18,28,.08);
      display:flex; align-items:center; justify-content:center;
      overflow:hidden;
      flex:0 0 auto;
    }
    .qrcode img{ width:100%; height:100%; object-fit:cover; }
    .kefu-pop-body p{
      margin:0;
      color: var(--muted);
      font-size:13.5px;
      line-height:1.7;
    }
    .kefu-pop-body .small-actions{
      margin-top:10px;
      display:flex; gap:10px; flex-wrap:wrap;
    }
    .small-link{
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(20,20,30,.10);
      background: rgba(255,255,255,.70);
      font-size:13px;
      transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
      white-space:nowrap;
    }
    .small-link:hover{
      transform: translateY(-1px);
      border-color: rgba(122,92,255,.24);
      box-shadow: 0 18px 36px rgba(15,18,28,.10);
    }

    .to-top{
      position:fixed;
      right:14px;
      bottom:82px;
      z-index:79;
      display:none;
    }
    .to-top button{
      width:52px; height:52px;
      border-radius: 18px;
      border:1px solid rgba(20,20,30,.12);
      background: rgba(255,255,255,.82);
      box-shadow: 0 18px 40px rgba(15,18,28,.14);
      cursor:pointer;
      transition: transform .2s var(--ease), box-shadow .2s var(--ease);
      display:flex; align-items:center; justify-content:center;
    }
    .to-top button:hover{ transform: translateY(-2px); box-shadow: 0 24px 56px rgba(15,18,28,.22); }

    .reveal{
      opacity:0;
      transform: translateY(12px);
      transition: opacity .6s var(--ease), transform .6s var(--ease);
    }
    .reveal.in{
      opacity:1;
      transform: translateY(0);
    }

    .mobile-only{ display:none; }
    .desktop-only{ display:inline-flex; }

    @media (max-width: 980px){
      .hero-grid{ grid-template-columns: 1fr; }
      .hero-right{ padding: 0 6px 6px; }
      .steps{ grid-template-columns: repeat(2, 1fr); }
      .grid-3{ grid-template-columns: 1fr; }
      .grid-2{ grid-template-columns: 1fr; }
      .two-col{ grid-template-columns: 1fr; }
      .faq{ grid-template-columns: 1fr; }
      .reviews{ grid-template-columns: 1fr; }
      .cases{ grid-template-columns: 1fr; }
      .articles{ grid-template-columns: 1fr; }
      .footer-grid{ grid-template-columns: 1fr; }
      .nav{ display:none; }
      .nav-cta{ min-width:auto; }
      .burger{ display:flex; }
      .mobile-panel{ display:block; }
      .desktop-only{ display:none; }
      .mobile-only{ display:inline-flex; }
      .form-grid{ grid-template-columns: 1fr; }
      .brand{ min-width:auto; }
    }

    @media (prefers-reduced-motion: reduce){
      .reveal, .reveal.in{ transition:none; transform:none; opacity:1; }
      .card, .metric, .review-card, .alink, .btn, details, .kefu-btn { transition:none !important; }
      .kefu-pop{ animation:none !important; }
    }