:root{
      --bg0:#f6f8fb;
      --bg1:#ffffff;
      --text:#0f172a;
      --muted:#556277;
      --muted2:#6b7280;
      --line:rgba(15,23,42,.10);
      --card:rgba(255,255,255,.78);
      --shadow: 0 10px 30px rgba(12,24,46,.08);
      --shadow2: 0 6px 16px rgba(12,24,46,.08);
      --shadow3: 0 2px 10px rgba(12,24,46,.08);
      --radius:18px;

      --brand1:#19c6ff;
      --brand2:#2a6bff;
      --brand3:#18e6c1;
      --brand4:#0ea5e9;

      --grad: linear-gradient(135deg, rgba(25,198,255,.20) 0%, rgba(42,107,255,.20) 45%, rgba(24,230,193,.18) 100%);
      --grad2: linear-gradient(135deg, #19c6ff 0%, #2a6bff 48%, #18e6c1 100%);
      --chip: rgba(25,198,255,.12);
      --chip2: rgba(42,107,255,.10);
      --focus: rgba(25,198,255,.35);
      --btn:#0b4bff;
      --btn2:#0ea5e9;
      --ok:#16a34a;
      --warn:#f59e0b;

      --container: 1160px;
      --padX: 18px;
    }

    *{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", "Noto Sans SC", sans-serif;
      color:var(--text);
      background:
        radial-gradient(900px 420px at 18% -5%, rgba(25,198,255,.20) 0%, rgba(25,198,255,0) 55%),
        radial-gradient(700px 380px at 78% 0%, rgba(42,107,255,.16) 0%, rgba(42,107,255,0) 55%),
        radial-gradient(520px 320px at 60% 30%, rgba(24,230,193,.14) 0%, rgba(24,230,193,0) 55%),
        linear-gradient(#f7f9ff, #f6f8fb);
      min-height:100vh;
    }

    a{color:inherit; text-decoration:none}
    img{max-width:100%; height:auto; display:block}
    button, input, select, textarea{font:inherit}
    .container{
      width: min(var(--container), calc(100% - var(--padX)*2));
      margin: 0 auto;
    }

    .topbar{
      position: sticky;
      top: 0;
      z-index: 30;
      background: rgba(246,248,251,.70);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(15,23,42,.08);
    }
    .nav{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap: 14px;
      padding: 12px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap: 12px;
      min-width: 210px;
    }
    .ai-page-logo{
      width: 40px;
      height: 40px;
      object-fit: contain;
      border-radius: 12px;
      background: rgba(255,255,255,.6);
      box-shadow: 0 6px 18px rgba(12,24,46,.10);
      padding: 6px;
    }
    .brand h2{
      margin:0;
      font-size: 15px;
      letter-spacing: .2px;
      line-height: 1.2;
    }
    .brand .sub{
      margin-top:3px;
      font-size: 12px;
      color: var(--muted);
      white-space:nowrap;
    }

    .navlinks{
      display:flex;
      align-items:center;
      gap: 10px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }
    .navlinks a{
      padding: 9px 10px;
      border-radius: 12px;
      color: rgba(15,23,42,.86);
      font-size: 13px;
      border: 1px solid transparent;
      transition: transform .15s ease, background .15s ease, border-color .15s ease;
      background: transparent;
    }
    .navlinks a:hover{
      background: rgba(25,198,255,.10);
      border-color: rgba(25,198,255,.22);
      transform: translateY(-1px);
    }

    .nav-cta{
      display:flex;
      gap: 10px;
      align-items:center;
      margin-left: 6px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap: 8px;
      border-radius: 14px;
      padding: 11px 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.70);
      box-shadow: var(--shadow3);
      color: rgba(15,23,42,.92);
      font-weight: 650;
      font-size: 13px;
      transition: transform .16s ease, box-shadow .16s ease, background .16s ease, border-color .16s ease;
      cursor:pointer;
      user-select:none;
      white-space: nowrap;
    }
    .btn:hover{
      transform: translateY(-1px);
      box-shadow: var(--shadow2);
      border-color: rgba(15,23,42,.16);
    }
    .btn.primary{
      background: linear-gradient(135deg, rgba(11,75,255,1) 0%, rgba(14,165,233,1) 100%);
      border-color: rgba(255,255,255,.18);
      color: #fff;
      box-shadow: 0 12px 30px rgba(11,75,255,.22);
    }
    .btn.primary:hover{
      box-shadow: 0 16px 38px rgba(11,75,255,.26);
    }
    .btn.ghost{
      background: rgba(255,255,255,.52);
    }

    .mobile-toggle{
      display:none;
      width: 42px;
      height: 42px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.65);
      box-shadow: var(--shadow3);
      cursor:pointer;
      transition: transform .16s ease, background .16s ease;
    }
    .mobile-toggle:hover{transform: translateY(-1px)}
    .burger{
      width:18px; height:12px; position:relative; margin:0 auto;
    }
    .burger span{
      position:absolute; left:0; right:0; height:2px; background: rgba(15,23,42,.85); border-radius: 999px;
      transition: transform .18s ease, top .18s ease, opacity .18s ease;
    }
    .burger span:nth-child(1){top:0}
    .burger span:nth-child(2){top:5px}
    .burger span:nth-child(3){top:10px}
    .mobile-toggle[aria-expanded="true"] .burger span:nth-child(1){top:5px; 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:5px; transform: rotate(-45deg)}

    .mobile-panel{
      display:none;
      padding: 10px 0 16px;
    }
    .mobile-panel .mobile-links{
      display:flex;
      flex-direction:column;
      gap: 8px;
      padding: 10px;
      border: 1px solid rgba(15,23,42,.10);
      border-radius: 16px;
      background: rgba(255,255,255,.65);
      box-shadow: var(--shadow2);
    }
    .mobile-panel a{
      padding: 12px 12px;
      border-radius: 14px;
      background: rgba(25,198,255,.08);
      border: 1px solid rgba(25,198,255,.18);
      font-weight: 650;
      font-size: 14px;
      color: rgba(15,23,42,.92);
    }
    .mobile-panel .mobile-ctas{
      display:flex;
      gap: 10px;
      margin-top: 12px;
    }
    .mobile-panel .mobile-ctas .btn{flex:1}

    .hero{
      padding: 26px 0 10px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 18px;
      align-items: stretch;
    }

    .hero-card{
      border-radius: 26px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.74), rgba(255,255,255,.60)),
        var(--grad);
      border: 1px solid rgba(15,23,42,.10);
      box-shadow: var(--shadow);
      padding: 22px;
      position: relative;
      overflow:hidden;
    }
    .hero-card::before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(800px 380px at 18% 10%, rgba(25,198,255,.22) 0%, rgba(25,198,255,0) 55%),
        radial-gradient(700px 340px at 78% 18%, rgba(42,107,255,.18) 0%, rgba(42,107,255,0) 55%),
        radial-gradient(520px 260px at 60% 70%, rgba(24,230,193,.14) 0%, rgba(24,230,193,0) 60%);
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      display:flex;
      flex-direction:column;
      gap: 14px;
      min-height: 360px;
    }

    .kicker{
      display:flex; align-items:center; gap: 10px; flex-wrap: wrap;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap: 8px;
      padding: 8px 10px;
      border-radius: 999px;
      border: 1px solid rgba(25,198,255,.22);
      background: rgba(25,198,255,.10);
      color: rgba(15,23,42,.92);
      font-weight: 650;
      font-size: 12px;
    }
    .dot{
      width: 10px; height: 10px; border-radius: 50%;
      background: var(--grad2);
      box-shadow: 0 0 0 6px rgba(25,198,255,.12);
    }
    .hero h1{
      margin: 0;
      font-size: clamp(22px, 3.1vw, 38px);
      line-height: 1.12;
      letter-spacing: -.3px;
    }
    .hero p.lead{
      margin: 0;
      color: var(--muted);
      font-size: 15.5px;
      line-height: 1.7;
      max-width: 64ch;
    }
    .hero-actions{
      display:flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 2px;
      align-items:center;
    }
    .hero-actions .btn{padding: 12px 16px}
    .micro{
      display:flex; gap: 10px; flex-wrap: wrap; align-items:center;
      margin-top: 6px;
    }
    .micro .badge{
      display:inline-flex; align-items:center; gap: 10px;
      padding: 10px 12px;
      border-radius: 16px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.55);
    }
    .badge strong{font-size: 13px}
    .badge span{font-size: 12.5px; color: var(--muted)}
    .icon{
      width: 34px; height: 34px; border-radius: 14px;
      background: rgba(25,198,255,.10);
      border: 1px solid rgba(25,198,255,.22);
      display:flex; align-items:center; justify-content:center;
      color: rgba(11,75,255,.95);
      flex: 0 0 auto;
    }

    .side{
      border-radius: 26px;
      background: rgba(255,255,255,.60);
      border: 1px solid rgba(15,23,42,.10);
      box-shadow: var(--shadow);
      padding: 18px;
      overflow:hidden;
      position: relative;
    }
    .side::after{
      content:"";
      position:absolute;
      width: 420px; height: 420px;
      right:-190px; top:-220px;
      background: radial-gradient(circle at 30% 30%, rgba(25,198,255,.26), rgba(25,198,255,0) 60%);
      pointer-events:none;
    }
    .side-inner{
      position:relative;
      display:flex;
      flex-direction:column;
      gap: 14px;
      height: 100%;
    }

    .datagrid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .datacard{
      border-radius: 18px;
      background: rgba(255,255,255,.72);
      border: 1px solid rgba(15,23,42,.10);
      padding: 14px 12px;
      box-shadow: 0 10px 24px rgba(12,24,46,.06);
      transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease;
      position:relative;
      overflow:hidden;
      min-height: 92px;
    }
    .datacard:hover{
      transform: translateY(-2px);
      border-color: rgba(25,198,255,.30);
      box-shadow: 0 16px 30px rgba(12,24,46,.10);
    }
    .datacard .num{
      font-weight: 820;
      font-size: 20px;
      letter-spacing: -.2px;
      margin-bottom: 6px;
      display:flex; align-items:baseline; gap: 8px;
    }
    .datacard .num em{
      font-style: normal;
      font-size: 12px;
      color: rgba(15,23,42,.72);
      border: 1px solid rgba(15,23,42,.12);
      padding: 4px 8px;
      border-radius: 999px;
      background: rgba(255,255,255,.55);
    }
    .datacard .desc{
      font-size: 12.8px;
      color: var(--muted);
      line-height: 1.45;
    }

    .matchbox{
      border-radius: 18px;
      border: 1px solid rgba(15,23,42,.10);
      background: linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.58));
      padding: 14px;
      display:flex;
      flex-direction:column;
      gap: 10px;
    }
    .matchbox .row{
      display:flex; gap: 10px; align-items:flex-start;
    }
    .matchbox h3{
      margin:0;
      font-size: 14.5px;
      letter-spacing: .1px;
    }
    .matchbox p{
      margin:0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
    }

    .pulse{
      display:inline-flex;
      align-items:center;
      gap: 8px;
      font-weight: 720;
      font-size: 13px;
      color: rgba(15,23,42,.92);
    }
    .pulse i{
      width: 10px; height: 10px; border-radius: 50%;
      background: var(--brand3);
      box-shadow: 0 0 0 0 rgba(24,230,193,.35);
      animation: ping 1.7s infinite;
    }
    @keyframes ping{
      0%{box-shadow: 0 0 0 0 rgba(24,230,193,.35)}
      70%{box-shadow: 0 0 0 12px rgba(24,230,193,0)}
      100%{box-shadow: 0 0 0 0 rgba(24,230,193,0)}
    }

    section{
      padding: 28px 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: -.2px;
    }
    .section-head p{
      margin:0;
      color: var(--muted);
      line-height: 1.6;
      max-width: 62ch;
      font-size: 13.8px;
    }

    .grid3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .grid4{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }
    .card{
      border-radius: var(--radius);
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.68);
      box-shadow: 0 10px 24px rgba(12,24,46,.06);
      padding: 16px;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      position: relative;
      overflow:hidden;
    }
    .card:hover{
      transform: translateY(-2px);
      border-color: rgba(25,198,255,.30);
      box-shadow: 0 16px 30px rgba(12,24,46,.10);
    }
    .card h3{
      margin: 10px 0 6px;
      font-size: 15.2px;
      letter-spacing: -.1px;
    }
    .card p{
      margin:0;
      color: var(--muted);
      font-size: 13.6px;
      line-height: 1.65;
    }

    .stepper{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
      align-items: stretch;
    }
    .step{
      border-radius: var(--radius);
      border: 1px solid rgba(15,23,42,.10);
      background:
        linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.58));
      padding: 14px;
      position:relative;
      overflow:hidden;
      min-height: 160px;
    }
    .step::before{
      content:"";
      position:absolute;
      inset:-1px;
      background: radial-gradient(360px 180px at 0% 0%, rgba(25,198,255,.16) 0%, rgba(25,198,255,0) 60%);
      pointer-events:none;
    }
    .step .t{
      position:relative;
      display:flex; align-items:center; gap: 10px;
    }
    .step .num{
      width: 34px; height: 34px; border-radius: 14px;
      background: rgba(25,198,255,.12);
      border: 1px solid rgba(25,198,255,.25);
      display:flex; align-items:center; justify-content:center;
      font-weight: 850;
      color: rgba(11,75,255,.95);
      flex: 0 0 auto;
    }
    .step h3{
      position:relative;
      margin: 10px 0 6px;
      font-size: 15px;
    }
    .step p{
      position:relative;
      margin:0;
      color: var(--muted);
      font-size: 13.4px;
      line-height: 1.6;
    }

    .compare{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 14px;
      align-items:start;
    }
    .evalcard{
      border-radius: 22px;
      padding: 18px;
      border: 1px solid rgba(15,23,42,.10);
      background:
        linear-gradient(180deg, rgba(255,255,255,.76), rgba(255,255,255,.56)),
        radial-gradient(680px 320px at 10% 10%, rgba(25,198,255,.18) 0%, rgba(25,198,255,0) 55%);
      box-shadow: var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .evaltop{
      display:flex; align-items:center; justify-content:space-between; gap: 14px;
      margin-bottom: 10px;
      flex-wrap: wrap;
    }
    .stars{
      display:flex; align-items:center; gap: 10px;
    }
    .starrow{
      display:flex; gap: 6px; align-items:center;
    }
    .star{
      width: 18px; height: 18px;
      display:inline-block;
      background: conic-gradient(from 180deg, #19c6ff, #2a6bff, #18e6c1);
      clip-path: polygon(50% 0%, 63% 36%, 100% 38%, 70% 60%, 79% 100%, 50% 78%, 21% 100%, 30% 60%, 0% 38%, 37% 36%);
      filter: drop-shadow(0 8px 12px rgba(11,75,255,.18));
    }
    .stars .label{
      font-weight: 820;
      letter-spacing: .1px;
      color: rgba(15,23,42,.92);
      font-size: 14px;
    }
    .score{
      text-align:right;
      display:flex; flex-direction:column; gap: 6px;
    }
    .score .big{
      font-weight: 900;
      font-size: 34px;
      letter-spacing: -.6px;
      line-height: 1;
    }
    .score .small{
      font-size: 12.8px; color: var(--muted);
      display:flex; justify-content:flex-end; gap: 8px;
      align-items:center; flex-wrap:wrap;
    }
    .pill{
      display:inline-flex; align-items:center; gap: 8px;
      padding: 7px 10px;
      border-radius: 999px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.55);
    }
    .tablewrap{
      border-radius: 22px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.68);
      box-shadow: var(--shadow2);
      padding: 14px;
      overflow:hidden;
    }
    .table-scroll{
      overflow:auto;
      padding-bottom: 6px;
    }
    table{
      width: 100%;
      border-collapse: collapse;
      min-width: 620px;
    }
    th, td{
      border-bottom: 1px solid rgba(15,23,42,.10);
      padding: 12px 12px;
      text-align:left;
      vertical-align: top;
      font-size: 13.5px;
    }
    th{
      font-weight: 850;
      color: rgba(15,23,42,.92);
      background: rgba(25,198,255,.08);
    }
    td{color: rgba(15,23,42,.86)}
    .tag{
      display:inline-flex;
      align-items:center;
      gap: 8px;
      padding: 7px 10px;
      border-radius: 999px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.55);
      margin-right: 8px;
      margin-bottom: 8px;
      font-size: 12.5px;
      font-weight: 700;
      color: rgba(15,23,42,.90);
      white-space: nowrap;
    }
    .tag.good{
      border-color: rgba(22,163,74,.25);
      background: rgba(22,163,74,.10);
      color: rgba(16,122,46,.98);
    }
    .tag.blue{
      border-color: rgba(25,198,255,.28);
      background: rgba(25,198,255,.10);
      color: rgba(11,75,255,.95);
    }
    .tag.gray{
      border-color: rgba(15,23,42,.14);
      background: rgba(15,23,42,.06);
      color: rgba(15,23,42,.86);
    }

    .list2{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .pricingline{
      display:flex; gap: 12px; flex-wrap: wrap; align-items:center;
      justify-content:flex-start;
    }
    .range{
      flex: 1 1 220px;
      min-width: 220px;
      border-radius: 18px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      padding: 14px;
      box-shadow: 0 10px 20px rgba(12,24,46,.06);
    }
    .range h3{margin:0 0 8px; font-size: 15px}
    .range .r{
      display:flex; justify-content:space-between; gap: 10px; flex-wrap: wrap;
      color: var(--muted);
      font-size: 13.2px; line-height: 1.6;
    }
    .range .v{
      font-weight: 880;
      color: rgba(15,23,42,.92);
      font-size: 18px;
    }

    .timeline{
      display:grid;
      grid-template-columns: 1fr;
      gap: 12px;
    }
    .titem{
      display:flex;
      gap: 12px;
      align-items:flex-start;
      border-radius: 20px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.66);
      padding: 14px;
      box-shadow: 0 10px 24px rgba(12,24,46,.06);
    }
    .tbullet{
      width: 38px; height: 38px;
      border-radius: 16px;
      background: rgba(25,198,255,.10);
      border: 1px solid rgba(25,198,255,.25);
      display:flex; align-items:center; justify-content:center;
      font-weight: 900;
      color: rgba(11,75,255,.95);
      flex: 0 0 auto;
      margin-top: 2px;
    }
    .titem h3{margin:0; font-size: 15px}
    .titem p{margin: 6px 0 0; color: var(--muted); font-size: 13.6px; line-height: 1.65}

    .tabs2{
      display:grid;
      grid-template-columns: 320px 1fr;
      gap: 14px;
      align-items:start;
    }
    .tablist{
      border-radius: 22px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.68);
      box-shadow: 0 10px 24px rgba(12,24,46,.06);
      padding: 12px;
      position:sticky;
      top: 80px;
    }
    .tabbtn{
      width: 100%;
      text-align:left;
      border-radius: 16px;
      border: 1px solid transparent;
      background: transparent;
      padding: 12px 12px;
      cursor:pointer;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap: 10px;
      transition: background .16s ease, border-color .16s ease, transform .16s ease;
      margin-bottom: 8px;
    }
    .tabbtn:hover{
      background: rgba(25,198,255,.09);
      border-color: rgba(25,198,255,.18);
      transform: translateY(-1px);
    }
    .tabbtn[aria-selected="true"]{
      background: rgba(25,198,255,.12);
      border-color: rgba(25,198,255,.30);
    }
    .tabbtn .tt{
      display:flex; flex-direction:column; gap: 4px;
    }
    .tabbtn strong{font-size: 14px}
    .tabbtn span{font-size: 12.5px; color: var(--muted)}
    .tabbtn .arrow{
      width: 26px; height: 26px; border-radius: 12px;
      border: 1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.55);
      display:flex; align-items:center; justify-content:center;
      color: rgba(15,23,42,.86);
      flex: 0 0 auto;
    }

    .tabpanel{
      border-radius: 22px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.68);
      box-shadow: 0 10px 24px rgba(12,24,46,.06);
      padding: 16px;
      overflow:hidden;
    }
    .tabpanel h3{margin: 6px 0 8px; font-size: 16px}
    .tabpanel p{margin:0; color: var(--muted); font-size: 13.8px; line-height: 1.7}
    .bulgrid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      margin-top: 12px;
    }
    .bul{
      border-radius: 18px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      padding: 12px;
    }
    .bul .t{
      display:flex; gap: 10px; align-items:center; margin-bottom: 6px;
    }
    .bul .ic{
      width: 32px; height: 32px; border-radius: 14px;
      background: rgba(42,107,255,.10);
      border: 1px solid rgba(42,107,255,.22);
      display:flex; align-items:center; justify-content:center;
      color: rgba(42,107,255,.98);
      flex: 0 0 auto;
    }
    .bul strong{font-size: 13.8px}
    .bul span{display:block; color: var(--muted); font-size: 12.8px; line-height: 1.6}

    .faq{
      border-radius: 22px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.68);
      box-shadow: var(--shadow2);
      overflow:hidden;
    }
    details{
      border-top: 1px solid rgba(15,23,42,.10);
      padding: 0;
      background: transparent;
    }
    details:first-child{border-top:none}
    summary{
      list-style:none;
      cursor:pointer;
      padding: 14px 16px;
      display:flex; align-items:flex-start; justify-content:space-between; gap: 14px;
      font-weight: 780;
      color: rgba(15,23,42,.92);
      user-select:none;
    }
    summary::-webkit-details-marker{display:none}
    .sumright{
      display:flex; align-items:center; gap: 10px; flex: 0 0 auto;
      color: var(--muted);
      font-weight: 750;
      font-size: 12.5px;
    }
    .chev{
      width: 28px; height: 28px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.55);
      display:flex; align-items:center; justify-content:center;
      transition: transform .18s ease;
      margin-top: -2px;
    }
    details[open] summary .chev{transform: rotate(180deg)}
    .ans{
      padding: 0 16px 16px;
      color: var(--muted);
      font-size: 13.8px;
      line-height: 1.75;
    }

    .comments{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .comment{
      border-radius: 22px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.68);
      box-shadow: 0 10px 24px rgba(12,24,46,.06);
      padding: 16px;
      position:relative;
      overflow:hidden;
      min-height: 176px;
    }
    .comment::before{
      content:"";
      position:absolute; inset:-1px;
      background: radial-gradient(520px 240px at 0% 0%, rgba(24,230,193,.14) 0%, rgba(24,230,193,0) 60%);
      pointer-events:none;
    }
    .comment .inner{position:relative}
    .comment .head{
      display:flex; align-items:center; justify-content:space-between; gap: 10px;
      margin-bottom: 10px;
    }
    .avatar{
      width: 40px; height: 40px; border-radius: 18px;
      background: rgba(25,198,255,.10);
      border: 1px solid rgba(25,198,255,.22);
      display:flex; align-items:center; justify-content:center;
      font-weight: 900;
      color: rgba(11,75,255,.95);
      flex: 0 0 auto;
    }
    .who{
      display:flex; gap: 10px; align-items:center;
    }
    .who strong{display:block; font-size: 14px; margin-bottom: 2px}
    .who span{display:block; font-size: 12.5px; color: var(--muted)}
    .comment .text{
      margin:0;
      color: var(--muted);
      font-size: 13.6px;
      line-height: 1.72;
      position:relative;
    }
    .comment .meta{
      display:flex; flex-wrap:wrap; gap: 8px;
      margin-top: 12px;
      position:relative;
    }

    .cases{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .case{
      border-radius: 22px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.68);
      box-shadow: 0 10px 24px rgba(12,24,46,.06);
      overflow:hidden;
      display:flex;
      flex-direction:column;
      min-height: 260px;
    }
    .case .top{
      padding: 14px 14px 0;
    }
    .case .thumb{
      border-radius: 18px;
      border: 1px solid rgba(15,23,42,.10);
      background:
        linear-gradient(135deg, rgba(25,198,255,.16), rgba(42,107,255,.10)),
        radial-gradient(260px 140px at 20% 20%, rgba(24,230,193,.16), rgba(24,230,193,0) 65%),
        rgba(255,255,255,.55);
      height: 90px;
      margin-top: 10px;
      position:relative;
      overflow:hidden;
    }
    .case .thumb::after{
      content:"";
      position:absolute; inset:0;
      background:
        linear-gradient(120deg, rgba(255,255,255,.0), rgba(255,255,255,.35), rgba(255,255,255,.0));
      transform: translateX(-120%);
      animation: sheen 2.2s ease-in-out infinite;
      opacity:.55;
    }
    @keyframes sheen{
      0%{transform: translateX(-120%)}
      55%{transform: translateX(120%)}
      100%{transform: translateX(120%)}
    }
    .case .body{
      padding: 12px 14px 14px;
      display:flex; flex-direction:column; gap: 10px;
      flex: 1 1 auto;
    }
    .case h3{margin:0; font-size: 15.4px}
    .case p{margin:0; color: var(--muted); font-size: 13.5px; line-height: 1.65}
    .case .tags{display:flex; flex-wrap:wrap; gap: 8px; margin-top:auto}
    .case .foot{
      padding: 0 14px 14px;
      display:flex; gap: 10px; flex-wrap:wrap;
      align-items:center;
      justify-content:space-between;
    }
    .linkbtn{
      display:inline-flex; align-items:center; gap: 8px;
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.58);
      font-weight: 760;
      font-size: 13px;
      cursor:pointer;
      transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease, background .16s ease;
      user-select:none;
    }
    .linkbtn:hover{
      transform: translateY(-1px);
      box-shadow: 0 12px 26px rgba(12,24,46,.08);
      border-color: rgba(25,198,255,.26);
      background: rgba(255,255,255,.72);
    }
    .linkbtn .arrow{
      width: 28px; height: 28px; border-radius: 14px;
      border: 1px solid rgba(15,23,42,.12);
      background: rgba(25,198,255,.10);
      display:flex; align-items:center; justify-content:center;
    }

    .article{
      border-radius: 22px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.68);
      box-shadow: 0 10px 24px rgba(12,24,46,.06);
      padding: 16px;
      display:flex;
      flex-direction:column;
      gap: 10px;
      min-height: 220px;
    }
    .article h3{margin:0; font-size: 15.6px}
    .article .meta{
      display:flex; gap: 10px; flex-wrap: wrap; align-items:center;
      color: var(--muted);
      font-size: 12.8px;
    }
    .article p{
      margin:0;
      color: var(--muted);
      font-size: 13.6px; line-height: 1.7;
      flex: 1 1 auto;
    }
    .article .act{
      display:flex; gap: 10px; flex-wrap:wrap; align-items:center; justify-content:space-between;
    }

    .formgrid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 12px;
    }
    .field{
      display:flex;
      flex-direction:column;
      gap: 8px;
    }
    .field label{
      font-weight: 760;
      color: rgba(15,23,42,.92);
      font-size: 13.2px;
    }
    .field input, .field select, .field textarea{
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.75);
      padding: 12px 12px;
      outline: none;
      transition: box-shadow .16s ease, border-color .16s ease, background .16s ease;
      color: rgba(15,23,42,.92);
      font-size: 14px;
    }
    .field textarea{min-height: 120px; resize: vertical}
    .field input:focus, .field select:focus, .field textarea:focus{
      border-color: rgba(25,198,255,.50);
      box-shadow: 0 0 0 4px var(--focus);
      background: rgba(255,255,255,.90);
    }
    .form-actions{
      display:flex; gap: 12px; flex-wrap:wrap;
      align-items:center;
      justify-content:space-between;
      margin-top: 12px;
    }
    .hint{
      color: var(--muted);
      font-size: 12.8px;
      line-height: 1.6;
      flex: 1 1 240px;
    }
    .toast{
      position: fixed;
      left: 50%;
      top: 88px;
      transform: translateX(-50%);
      background: rgba(15,23,42,.92);
      color: #fff;
      padding: 10px 14px;
      border-radius: 14px;
      box-shadow: 0 20px 60px rgba(0,0,0,.22);
      z-index: 80;
      opacity:0;
      pointer-events:none;
      transition: opacity .18s ease, transform .18s ease;
      font-size: 13.5px;
      width: min(520px, calc(100% - 26px));
      text-align:center;
    }
    .toast.show{
      opacity:1;
      transform: translateX(-50%) translateY(6px);
    }

    .footer{
      padding: 18px 0 28px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.0), rgba(255,255,255,.55));
    }
    .footcard{
      border-radius: 26px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.68);
      box-shadow: var(--shadow2);
      padding: 16px;
    }
    .footgrid{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 14px;
      align-items:start;
    }
    .footgrid h3{margin:0 0 8px; font-size: 15.6px}
    .footgrid p{margin:0; color: var(--muted); line-height:1.7; font-size: 13.6px}
    .footlinks{
      margin-top: 10px;
      display:flex; flex-wrap:wrap; gap: 10px;
    }
    .footlinks a{
      padding: 8px 10px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.55);
      color: rgba(15,23,42,.86);
      font-weight: 720;
      font-size: 13px;
      transition: transform .16s ease, border-color .16s ease;
      max-width: 100%;
      overflow:hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    .footlinks a:hover{transform: translateY(-1px); border-color: rgba(25,198,255,.26)}
    .copy{
      margin-top: 12px;
      padding-top: 12px;
      border-top: 1px solid rgba(15,23,42,.10);
      display:flex; align-items:center; justify-content:space-between; gap: 12px;
      flex-wrap: wrap;
      color: var(--muted);
      font-size: 12.8px;
    }

    .floatbar{
      position: fixed;
      right: 14px;
      bottom: 14px;
      z-index: 90;
      display:flex; flex-direction:column; gap: 10px;
      align-items:flex-end;
    }
    .floatbtn{
      width: 52px; height: 52px;
      border-radius: 20px;
      border: 1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.78);
      box-shadow: 0 18px 50px rgba(12,24,46,.16);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
      user-select:none;
    }
    .floatbtn:hover{transform: translateY(-2px); border-color: rgba(25,198,255,.26)}
    .kefu-panel{
      width: 310px;
      border-radius: 22px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 30px 80px rgba(12,24,46,.20);
      overflow:hidden;
      transform-origin: bottom right;
      transform: scale(.98);
      opacity:0;
      pointer-events:none;
      transition: opacity .16s ease, transform .16s ease;
      margin-bottom: 8px;
    }
    .kefu-panel.show{
      opacity:1;
      pointer-events:auto;
      transform: scale(1);
    }
    .kefu-head{
      padding: 12px 14px;
      display:flex; align-items:center; justify-content:space-between; gap: 10px;
      border-bottom: 1px solid rgba(15,23,42,.10);
      background:
        linear-gradient(135deg, rgba(25,198,255,.14), rgba(42,107,255,.10));
    }
    .kefu-head strong{font-size: 14.2px}
    .kefu-head button{
      width: 30px; height: 30px;
      border-radius: 12px;
      border: 1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.65);
      cursor:pointer;
      transition: transform .16s ease;
      display:flex; align-items:center; justify-content:center;
    }
    .kefu-head button:hover{transform: translateY(-1px)}
    .kefu-body{
      padding: 14px;
      display:flex; flex-direction:column; gap: 10px;
    }
    .kefu-body .row{
      display:flex; gap: 12px; align-items:flex-start;
    }
    .qr{
      width: 96px; height: 96px;
      border-radius: 18px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.72);
      padding: 8px;
      box-shadow: 0 10px 24px rgba(12,24,46,.06);
    }
    .kefu-body p{
      margin:0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
    }
    .kefu-body .actions{
      display:flex; gap: 10px; flex-wrap:wrap; align-items:center;
      justify-content:space-between;
    }

    .sr-only{
      position:absolute;
      width:1px; height:1px;
      padding:0; margin:-1px; overflow:hidden;
      clip:rect(0,0,0,0); border:0;
    }

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

    .anchor{
      scroll-margin-top: 90px;
    }

    @media (max-width: 980px){
      .hero-grid{grid-template-columns: 1fr; }
      .hero-inner{min-height: unset}
      .stepper{grid-template-columns: 1fr 1fr}
      .grid3{grid-template-columns: 1fr 1fr}
      .grid4{grid-template-columns: 1fr 1fr}
      .compare{grid-template-columns: 1fr}
      .tabs2{grid-template-columns: 1fr}
      .tablist{position: relative; top: 0}
      .comments{grid-template-columns: 1fr}
      .cases{grid-template-columns: 1fr}
      .formgrid{grid-template-columns: 1fr}
      .footgrid{grid-template-columns: 1fr}
      .navlinks{display:none}
      .nav-cta{display:none}
      .mobile-toggle{display:flex; align-items:center; justify-content:center}
      .mobile-panel{display:block}
      .mobile-panel[data-open="false"]{display:none}
      .mobile-panel[data-open="true"]{display:block}
      .kefu-panel{width: min(310px, calc(100vw - 30px))}
    }