:root{
      --bg0:#ffffff;
      --bg1:#fbf7f1;
      --card:#ffffff;
      --text:#1f2a37;
      --muted:#5b6778;
      --muted2:#778396;
      --line:rgba(17,24,39,.10);
      --line2:rgba(17,24,39,.14);
      --shadow: 0 10px 30px rgba(17,24,39,.08);
      --shadow2: 0 8px 20px rgba(17,24,39,.10);
      --radius:18px;
      --radius2:14px;
      --radius3:12px;
      --gradA: linear-gradient(120deg, #2f6bff 0%, #7c3aed 35%, #ff4d6d 70%, #f59e0b 100%);
      --gradB: linear-gradient(135deg, rgba(47,107,255,.18), rgba(124,58,237,.18), rgba(255,77,109,.16));
      --gradC: linear-gradient(135deg, #2f6bff 0%, #7c3aed 55%, #ff4d6d 100%);
      --accent:#3b82f6;
      --accent2:#7c3aed;
      --warn:#f59e0b;
      --good:#10b981;
      --danger:#ef4444;
      --focus: 0 0 0 4px rgba(59,130,246,.18);
      --container: 1120px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Arial,Helvetica,sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 600px at 10% 0%, rgba(47,107,255,.10), transparent 55%),
        radial-gradient(900px 520px at 80% 10%, rgba(124,58,237,.10), transparent 60%),
        radial-gradient(900px 520px at 45% 50%, rgba(255,77,109,.08), transparent 58%),
        linear-gradient(180deg, var(--bg1) 0%, #fff 40%, #fff 100%);
    }
    a{color:inherit;text-decoration:none}
    .container{
      width: min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }

    /* Header */
    .topbar{
      position:sticky; top:0; z-index:50;
      backdrop-filter: blur(10px);
      background: rgba(255,255,255,.72);
      border-bottom: 1px solid rgba(17,24,39,.08);
    }
    .nav{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:14px 0;
      gap:14px;
    }
    .brand{
      display:flex; align-items:center; gap:10px;
      min-width: 190px;
    }
    .ai-page-logo{
      width:38px;
      height:38px;
      border-radius:12px;
      background: rgba(59,130,246,.10);
      padding:6px;
      box-shadow: 0 10px 20px rgba(59,130,246,.10);
      object-fit:contain;
    }
    .brand-text{
      display:flex; flex-direction:column; gap:2px;
      line-height:1.1;
    }
    .brand-text strong{font-size:14px; letter-spacing:.2px}
    .brand-text span{font-size:12px; color:var(--muted)}
    .navlinks{
      display:flex; align-items:center; gap:18px; flex-wrap:wrap;
      justify-content:flex-end;
    }
    .navlinks a{
      font-size:13px; color:var(--muted);
      padding:10px 10px;
      border-radius:12px;
      border:1px solid transparent;
      transition: transform .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
      white-space:nowrap;
    }
    .navlinks a:hover{
      background: rgba(59,130,246,.08);
      border-color: rgba(59,130,246,.18);
      color:#223047;
      transform: translateY(-1px);
    }
    .nav-cta{
      display:flex; align-items:center; gap:10px;
      justify-content:flex-end;
      min-width: 190px;
    }
    .pill{
      display:inline-flex; align-items:center; gap:10px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.70);
      padding:8px 12px;
      border-radius:999px;
      box-shadow: 0 10px 18px rgba(17,24,39,.05);
    }
    .pill .dot{
      width:10px; height:10px; border-radius:50%;
      background: var(--gradC);
      box-shadow: 0 0 0 4px rgba(124,58,237,.12);
    }
    .pill span{
      font-size:12px; color:var(--muted);
    }
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:10px;
      padding:12px 16px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.72);
      color:var(--text);
      font-weight:650;
      font-size:14px;
      transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
      cursor:pointer;
      user-select:none;
      white-space:nowrap;
    }
    .btn:hover{
      transform: translateY(-1px);
      box-shadow: 0 14px 30px rgba(17,24,39,.12);
      border-color: rgba(47,107,255,.25);
    }
    .btn:focus{outline:none; box-shadow: var(--focus)}
    .btn-primary{
      border-color: rgba(47,107,255,.35);
      background: linear-gradient(135deg, rgba(47,107,255,.14), rgba(124,58,237,.14), rgba(255,77,109,.12)), rgba(255,255,255,.72);
    }
    .btn-accent{
      color:#0b1220;
      border-color: rgba(124,58,237,.35);
      background: linear-gradient(135deg, rgba(47,107,255,.20), rgba(124,58,237,.18), rgba(255,77,109,.14));
    }
    .btn-gradient{
      border:none;
      background: var(--gradC);
      color:white;
      box-shadow: 0 18px 40px rgba(124,58,237,.22);
    }
    .btn-gradient:hover{
      box-shadow: 0 22px 55px rgba(124,58,237,.28);
      transform: translateY(-2px);
    }
    .icon{
      width:18px; height:18px; display:inline-block;
    }
    .hamburger{
      display:none;
      border-radius:14px;
      padding:10px 12px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.72);
      cursor:pointer;
    }
    .hamburger:focus{outline:none; box-shadow: var(--focus)}
    .hamburger svg{display:block}
    .mobile-panel{
      display:none;
      padding-bottom:14px;
    }
    .mobile-links{
      display:flex; flex-direction:column;
      gap:8px;
      padding:10px 0 6px;
    }
    .mobile-links a{
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.76);
      padding:12px 12px;
      border-radius:14px;
      font-size:14px;
      color:var(--text);
    }
    .mobile-links a small{display:block; margin-top:2px; color:var(--muted); font-weight:500; font-size:12px}

    /* Hero */
    .hero{
      position:relative;
      overflow:hidden;
      padding: 34px 0 10px;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:-200px -120px auto -120px;
      height: 460px;
      background: var(--gradB);
      filter: blur(10px);
      transform: rotate(-6deg);
      opacity:.95;
      pointer-events:none;
    }
    .hero::after{
      content:"";
      position:absolute;
      right:-120px; top:0;
      width: 520px; height: 520px;
      border-radius: 50%;
      background: radial-gradient(circle at 30% 30%, rgba(59,130,246,.25), transparent 60%),
                  radial-gradient(circle at 65% 55%, rgba(124,58,237,.22), transparent 60%),
                  radial-gradient(circle at 30% 70%, rgba(255,77,109,.16), transparent 65%);
      pointer-events:none;
      opacity:.85;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap:18px;
      align-items:stretch;
      padding: 10px 0 18px;
    }
    .hero-left{
      padding: 18px 0;
    }
    .kicker{
      display:inline-flex;
      align-items:center;
      gap:10px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.62);
      padding:8px 12px;
      border-radius:999px;
      box-shadow: 0 12px 20px rgba(17,24,39,.06);
    }
    .kicker b{
      font-size:12px;
      letter-spacing:.2px;
    }
    .kicker i{
      width:10px; height:10px; border-radius:50%;
      background: var(--gradC);
      display:inline-block;
      box-shadow: 0 0 0 4px rgba(124,58,237,.12);
    }
    .hero h1{
      margin:14px 0 10px;
      font-size: 40px;
      line-height: 1.12;
      letter-spacing: -0.6px;
    }
    .hero p{
      margin:0;
      color:var(--muted);
      font-size:15px;
      line-height:1.8;
      max-width: 62ch;
    }
    .hero-actions{
      margin-top:18px;
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
    }
    .trust-row{
      margin-top:16px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      color:var(--muted2);
      font-size:12px;
    }
    .trust-item{
      display:flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius:999px;
      border:1px dashed rgba(17,24,39,.16);
      background: rgba(255,255,255,.58);
    }
    .trust-item svg{opacity:.85}
    .hero-right{
      display:flex;
      flex-direction:column;
      gap:12px;
      padding: 10px 0 0;
    }
    .glass{
      background: rgba(255,255,255,.62);
      border: 1px solid rgba(17,24,39,.10);
      border-radius: var(--radius);
      box-shadow: 0 18px 42px rgba(17,24,39,.08);
      overflow:hidden;
    }
    .hero-panel{
      padding: 16px 16px 14px;
      position:relative;
    }
    .hero-panel .title-row{
      display:flex; align-items:center; justify-content:space-between;
      gap:10px;
      margin-bottom:12px;
    }
    .hero-panel .title-row h2{
      margin:0;
      font-size:14px;
      letter-spacing:.2px;
    }
    .badge{
      display:inline-flex; align-items:center; gap:8px;
      padding:7px 10px;
      border-radius:999px;
      border:1px solid rgba(47,107,255,.22);
      background: rgba(47,107,255,.10);
      color:#1f3a8a;
      font-size:12px;
      font-weight:700;
      white-space:nowrap;
    }
    .badge span{
      width:8px; height:8px; border-radius:50%;
      background: var(--gradC);
      display:inline-block;
      box-shadow: 0 0 0 4px rgba(47,107,255,.16);
    }
    .mini-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
    }
    .metric{
      padding:12px 12px;
      border-radius: 14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.70);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .metric:hover{
      transform: translateY(-2px);
      box-shadow: 0 14px 28px rgba(17,24,39,.10);
    }
    .metric b{
      display:block;
      font-size:18px;
      letter-spacing:-.3px;
    }
    .metric small{
      display:block;
      margin-top:4px;
      color:var(--muted);
      font-size:12px;
      line-height:1.4;
    }
    .hero-panel .note{
      margin-top:12px;
      padding-top:12px;
      border-top:1px solid rgba(17,24,39,.10);
      color:var(--muted);
      font-size:12px;
      line-height:1.6;
    }

    /* Section base */
    section{padding: 28px 0}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:14px;
      margin-bottom:16px;
    }
    .section-head h2{
      margin:0;
      font-size: 22px;
      letter-spacing:-.3px;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.8;
      max-width: 64ch;
    }

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

    /* Cards / Lists */
    .grid-3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    .grid-4{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap:12px;
    }
    .card{
      background: rgba(255,255,255,.70);
      border:1px solid rgba(17,24,39,.10);
      border-radius: var(--radius2);
      box-shadow: 0 14px 30px rgba(17,24,39,.06);
      overflow:hidden;
    }
    .card-inner{padding:16px}
    .card h3{
      margin:0 0 8px;
      font-size:15px;
      letter-spacing:-.2px;
    }
    .card p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.8;
    }
    .chip-row{
      margin-top:12px;
      display:flex; flex-wrap:wrap; gap:8px;
    }
    .chip{
      font-size:12px;
      color:#2a3445;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.60);
      padding:7px 10px;
      border-radius:999px;
      white-space:nowrap;
    }
    .chip.gradient{
      border-color: rgba(47,107,255,.22);
      background: linear-gradient(135deg, rgba(47,107,255,.14), rgba(124,58,237,.12));
      color:#1c2d55;
      font-weight:650;
    }

    /* Timeline / Steps */
    .steps{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap:12px;
    }
    .step{
      position:relative;
      padding:16px;
      border-radius: var(--radius2);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      transition: transform .2s ease, box-shadow .2s ease;
      box-shadow: 0 14px 28px rgba(17,24,39,.06);
    }
    .step:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 36px rgba(17,24,39,.10);
    }
    .step .num{
      width:34px; height:34px;
      border-radius:12px;
      background: linear-gradient(135deg, rgba(47,107,255,.18), rgba(124,58,237,.16), rgba(255,77,109,.12));
      border:1px solid rgba(124,58,237,.20);
      display:flex; align-items:center; justify-content:center;
      font-weight:800;
      color:#2a2f45;
      margin-bottom:10px;
    }
    .step h3{margin:0 0 8px; font-size:15px}
    .step p{margin:0; color:var(--muted); font-size:13px; line-height:1.8}

    /* Comparison Table */
    .compare-wrap{
      overflow:hidden;
      border-radius: var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.68);
      box-shadow: 0 18px 40px rgba(17,24,39,.08);
    }
    .compare-top{
      padding:16px;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:14px;
      border-bottom:1px solid rgba(17,24,39,.10);
      background:
        radial-gradient(900px 260px at 15% 0%, rgba(47,107,255,.15), transparent 55%),
        radial-gradient(700px 240px at 85% 10%, rgba(124,58,237,.14), transparent 55%),
        rgba(255,255,255,.68);
    }
    .rating{
      display:flex; gap:14px; align-items:center;
    }
    .stars{
      width: 72px; height: 72px;
      border-radius: 22px;
      background: linear-gradient(135deg, rgba(245,158,11,.20), rgba(239,68,68,.12));
      border:1px solid rgba(245,158,11,.30);
      display:flex; align-items:center; justify-content:center;
      box-shadow: 0 18px 40px rgba(245,158,11,.10);
    }
    .stars svg{width:40px; height:40px}
    .rating .text b{font-size:20px; letter-spacing:-.3px}
    .rating .text div{color:var(--muted); font-size:13px; margin-top:4px; line-height:1.5}
    .compare-right{
      display:flex; flex-direction:column; gap:8px; align-items:flex-end;
      color:var(--muted);
      font-size:12px;
      text-align:right;
    }
    .tagline{
      display:inline-flex; align-items:center; gap:8px;
      border:1px solid rgba(16,185,129,.22);
      background: rgba(16,185,129,.10);
      color:#115e45;
      padding:8px 10px;
      border-radius:999px;
      font-weight:700;
    }
    table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      font-size:13px;
    }
    .compare-table th, .compare-table td{
      padding:12px 12px;
      border-bottom:1px solid rgba(17,24,39,.08);
      vertical-align:top;
    }
    .compare-table th{
      background: rgba(255,255,255,.55);
      color:#2a3445;
      font-weight:750;
      text-align:left;
      position:sticky;
      top: 0;
      z-index:1;
    }
    .compare-table td{color:var(--muted)}
    .compare-table tr:last-child td{border-bottom:none}
    .mark{
      display:inline-flex; align-items:center; gap:8px;
      color:#0f172a;
      font-weight:700;
    }
    .mark .check{
      width:18px; height:18px;
      border-radius:6px;
      background: rgba(16,185,129,.14);
      border:1px solid rgba(16,185,129,.28);
      display:inline-flex; align-items:center; justify-content:center;
    }
    .mark .check svg{width:12px;height:12px}
    .mark.muted{
      font-weight:650;
      color:var(--muted);
    }
    .note-row{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      padding:14px 16px;
      border-top:1px solid rgba(17,24,39,.10);
      color:var(--muted);
      font-size:12px;
      flex-wrap:wrap;
    }
    .note-row .links{
      display:flex; gap:10px; flex-wrap:wrap;
      align-items:center;
    }
    .link-soft{
      display:inline-flex; align-items:center; gap:8px;
      padding:9px 10px;
      border-radius:12px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.68);
      transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
    }
    .link-soft:hover{
      transform: translateY(-1px);
      border-color: rgba(47,107,255,.25);
      box-shadow: 0 14px 26px rgba(17,24,39,.10);
    }
    .link-soft svg{opacity:.85}

    /* Reviews */
    .review-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    .review{
      padding:16px;
      display:flex; flex-direction:column; gap:10px;
      min-height: 196px;
      background: rgba(255,255,255,.72);
      border:1px solid rgba(17,24,39,.10);
      border-radius: var(--radius2);
      box-shadow: 0 14px 30px rgba(17,24,39,.06);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .review:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 40px rgba(17,24,39,.10);
    }
    .review .head{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
    }
    .avatar{
      width:40px; height:40px; border-radius:14px;
      background: linear-gradient(135deg, rgba(47,107,255,.18), rgba(124,58,237,.16), rgba(255,77,109,.12));
      border:1px solid rgba(124,58,237,.22);
      display:flex; align-items:center; justify-content:center;
      font-weight:900; letter-spacing:-.5px;
    }
    .review .role{
      display:flex; flex-direction:column; gap:2px;
      flex:1;
      margin-left:10px;
    }
    .review .role b{font-size:14px}
    .review .role span{color:var(--muted); font-size:12px}
    .review .starsline{
      display:flex; gap:2px; align-items:center;
    }
    .review .starsline svg{width:14px;height:14px}
    .review blockquote{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.85;
    }

    /* Case / Article */
    .list{
      display:flex; flex-direction:column; gap:10px;
    }
    .list-item{
      padding:14px 14px;
      border-radius: var(--radius3);
      background: rgba(255,255,255,.72);
      border:1px solid rgba(17,24,39,.10);
      box-shadow: 0 12px 26px rgba(17,24,39,.06);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .list-item:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 40px rgba(17,24,39,.10);
    }
    .list-item .top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
    }
    .list-item h3{
      margin:0;
      font-size:15px;
      letter-spacing:-.2px;
    }
    .list-item .meta{
      color:var(--muted2);
      font-size:12px;
      text-align:right;
      white-space:nowrap;
      padding-top:2px;
    }
    .list-item p{
      margin:8px 0 0;
      color:var(--muted);
      font-size:13px;
      line-height:1.8;
    }

    .two-col{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      align-items:stretch;
    }

    /* Form */
    .form-card{
      padding:16px;
    }
    .form-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
      margin-top:12px;
    }
    label{
      display:flex;
      flex-direction:column;
      gap:7px;
      font-size:12px;
      color:var(--muted);
    }
    input, select, textarea{
      width:100%;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.82);
      padding:12px 12px;
      font-size:14px;
      color:var(--text);
      outline:none;
      transition: box-shadow .15s ease, border-color .15s ease, transform .15s ease;
    }
    textarea{min-height:110px; resize:vertical}
    input:focus, select:focus, textarea:focus{
      border-color: rgba(59,130,246,.40);
      box-shadow: var(--focus);
    }
    .form-actions{
      margin-top:12px;
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      justify-content:space-between;
      gap:12px;
    }
    .form-actions .hint{
      color:var(--muted);
      font-size:12px;
      line-height:1.6;
      max-width: 48ch;
    }

    /* Footer */
    footer{
      padding: 18px 0 26px;
      margin-top: 6px;
    }
    .footer-wrap{
      border-radius: var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background:
        radial-gradient(900px 260px at 15% 0%, rgba(47,107,255,.13), transparent 55%),
        radial-gradient(700px 240px at 85% 10%, rgba(124,58,237,.12), transparent 55%),
        rgba(255,255,255,.66);
      box-shadow: 0 18px 44px rgba(17,24,39,.08);
      overflow:hidden;
    }
    .footer-top{
      padding:16px;
      display:flex;
      gap:14px;
      justify-content:space-between;
      align-items:flex-start;
      flex-wrap:wrap;
      border-bottom:1px solid rgba(17,24,39,.10);
    }
    .footer-col{
      min-width: 220px;
      flex: 1;
    }
    .footer-col h3{
      margin:0 0 10px;
      font-size:14px;
      letter-spacing:-.2px;
    }
    .footer-col p, .footer-col a, .footer-col span{
      color:var(--muted);
      font-size:13px;
      line-height:1.8;
    }
    .footer-links{
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .footer-links a{
      display:inline-flex; align-items:center; gap:8px;
      padding:9px 10px;
      border-radius:12px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.66);
      transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
      color:#2a3445;
      font-weight:650;
      white-space:nowrap;
    }
    .footer-links a:hover{
      transform: translateY(-1px);
      border-color: rgba(47,107,255,.25);
      box-shadow: 0 14px 26px rgba(17,24,39,.10);
    }
    .contact-row{
      display:flex; gap:12px; align-items:center; flex-wrap:wrap;
    }
    .wechat{
      display:flex; align-items:center; gap:12px; flex-wrap:wrap;
    }
    .qr{
      width:78px; height:78px;
      border-radius:18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      padding:8px;
      box-shadow: 0 14px 30px rgba(17,24,39,.06);
      object-fit:contain;
    }
    .footer-bottom{
      padding:14px 16px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      color:var(--muted2);
      font-size:12px;
    }
    .footer-bottom .right{
      display:flex; gap:10px; align-items:center; flex-wrap:wrap;
    }
    .sep{
      width:1px; height:14px; background: rgba(17,24,39,.12);
      display:inline-block;
    }

    /* FAQ */
    .faq{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      align-items:start;
    }
    details{
      background: rgba(255,255,255,.72);
      border:1px solid rgba(17,24,39,.10);
      border-radius: var(--radius2);
      box-shadow: 0 14px 28px rgba(17,24,39,.06);
      overflow:hidden;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    details:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 40px rgba(17,24,39,.10);
    }
    summary{
      list-style:none;
      cursor:pointer;
      padding:14px 14px;
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      color:#2a3445;
      font-weight:750;
      font-size:14px;
    }
    summary::-webkit-details-marker{display:none}
    .sum-icon{
      width:28px; height:28px; border-radius:12px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.68);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      margin-top:-2px;
    }
    details[open] .sum-icon{
      border-color: rgba(124,58,237,.25);
      background: linear-gradient(135deg, rgba(47,107,255,.14), rgba(124,58,237,.12));
    }
    .faq-body{
      padding:0 14px 14px;
      color:var(--muted);
      font-size:13px;
      line-height:1.85;
    }

    /* Labels cloud */
    .cloud{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      padding:14px;
      border-radius: var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.66);
      box-shadow: 0 16px 40px rgba(17,24,39,.07);
    }
    .cloud a{
      display:inline-flex; align-items:center;
      padding:9px 10px;
      border-radius:999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.70);
      color:#2a3445;
      font-weight:650;
      font-size:12px;
      transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
      white-space:nowrap;
    }
    .cloud a:hover{
      transform: translateY(-1px);
      border-color: rgba(47,107,255,.25);
      box-shadow: 0 14px 26px rgba(17,24,39,.10);
    }
    .cloud a i{
      width:8px;height:8px;border-radius:50%;
      background: var(--gradC);
      display:inline-block;
      margin-right:8px;
      box-shadow: 0 0 0 4px rgba(124,58,237,.12);
    }

    /* Floating */
    .float-bar{
      position:fixed;
      right:16px; bottom:16px;
      z-index:70;
      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,.78);
      box-shadow: 0 20px 55px rgba(17,24,39,.14);
      overflow:hidden;
      transform: translateY(0);
      transition: transform .2s ease, opacity .2s ease;
      max-width: 210px;
    }
    .float-card .head{
      padding:10px 12px;
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      border-bottom:1px solid rgba(17,24,39,.08);
      background: linear-gradient(135deg, rgba(47,107,255,.12), rgba(124,58,237,.10), rgba(255,77,109,.08));
    }
    .float-card .head b{font-size:13px}
    .float-card .head button{
      border:none; background:transparent; cursor:pointer;
      width:30px; height:30px; border-radius:12px;
      border:1px solid rgba(17,24,39,.10);
      color:var(--muted);
    }
    .float-card .head button:hover{background:rgba(17,24,39,.04)}
    .float-body{
      padding:10px 12px 12px;
      display:flex; flex-direction:column; gap:10px;
    }
    .float-row{
      display:flex; align-items:center; gap:10px;
    }
    .float-qrcode{
      width:48px; height:48px;
      border-radius:16px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.80);
      padding:6px;
      object-fit:contain;
      box-shadow: 0 14px 28px rgba(17,24,39,.08);
    }
    .float-body .muted{
      color:var(--muted);
      font-size:12px;
      line-height:1.6;
    }
    .float-actions{
      display:flex; gap:10px;
    }
    .btn-mini{
      padding:10px 12px;
      border-radius:14px;
      font-size:13px;
      font-weight:750;
    }
    .to-top{
      width:46px; height:46px;
      border-radius:18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 18px 40px rgba(17,24,39,.12);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      transition: transform .15s ease, box-shadow .15s ease;
    }
    .to-top:hover{
      transform: translateY(-2px);
      box-shadow: 0 22px 55px rgba(17,24,39,.16);
    }
    .to-top:focus{outline:none; box-shadow: var(--focus)}
    .to-top svg{width:20px;height:20px}

    /* Responsive */
    @media (max-width: 980px){
      .hero-grid{grid-template-columns: 1fr; gap:12px}
      .hero h1{font-size:32px}
      .steps{grid-template-columns: 1fr 1fr}
      .grid-3{grid-template-columns: 1fr 1fr}
      .grid-4{grid-template-columns: 1fr 1fr}
      .review-grid{grid-template-columns: 1fr 1fr}
      .two-col{grid-template-columns: 1fr}
      .faq{grid-template-columns: 1fr}
      .navlinks{display:none}
      .nav-cta .pill{display:none}
      .hamburger{display:inline-flex}
      .mobile-panel{display:block}
    }
    @media (max-width: 560px){
      .hero h1{font-size:28px}
      .steps{grid-template-columns: 1fr}
      .grid-3{grid-template-columns: 1fr}
      .grid-4{grid-template-columns: 1fr}
      .review-grid{grid-template-columns: 1fr}
      .form-grid{grid-template-columns: 1fr}
      .float-bar{right:12px; bottom:12px}
      .float-card{max-width: 190px}
    }

    /* Reduce motion */
    @media (prefers-reduced-motion: reduce){
      html{scroll-behavior:auto}
      .fade-in{transition:none}
      .btn, .card, .metric, .step, .review, .list-item, details{transition:none}
    }