:root{
      --bg0:#0b1220;
      --bg1:#0f1a33;
      --card:#0f1a2f;
      --card2:#0c1427;
      --text:#0f172a;
      --muted:#5b667a;
      --line:rgba(15,23,42,.10);
      --shadow: 0 10px 30px rgba(17,24,39,.10);
      --shadow2: 0 18px 50px rgba(15,23,42,.14);
      --brandA:#4ff2ff;
      --brandB:#7c5cff;
      --brandC:#00ffa6;
      --brandD:#ff4fd8;
      --primary:#0b57ff;
      --primary2:#5b2cff;
      --accent:#10b981;
      --danger:#ef4444;
      --cream:#fbfaf7;
      --paper:#ffffff;
      --ink:#111827;
      --ink2:#374151;
      --ink3:#6b7280;
      --radius:18px;
      --radius2:26px;
      --focus: 0 0 0 4px rgba(79,242,255,.25), 0 0 0 1px rgba(79,242,255,.55) inset;
      --max:1160px;
    }

    *{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", "Apple Color Emoji","Segoe UI Emoji";
      color:var(--ink);
      background:
        radial-gradient(1200px 700px at 10% -10%, rgba(124,92,255,.18), transparent 55%),
        radial-gradient(900px 600px at 90% 0%, rgba(79,242,255,.16), transparent 55%),
        radial-gradient(700px 500px at 50% 20%, rgba(0,255,166,.10), transparent 60%),
        linear-gradient(180deg, #fdfcff 0%, #fbfaf7 35%, #ffffff 100%);
      overflow-x:hidden;
    }

    a{color:inherit; text-decoration:none}
    a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible{
      outline:none; box-shadow: var(--focus);
      border-color: rgba(79,242,255,.7) !important;
    }

    .container{
      width:100%;
      max-width:var(--max);
      margin:0 auto;
      padding:0 18px;
    }

    .topbar{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter: blur(10px);
      background: rgba(255,255,255,.62);
      border-bottom:1px solid rgba(15,23,42,.08);
    }
    .topbar-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:12px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      min-width: 210px;
    }
    .ai-page-logo{
      width:36px; height:36px;
      border-radius:12px;
      background: linear-gradient(135deg, rgba(79,242,255,.35), rgba(124,92,255,.25));
      padding:6px;
      box-shadow: 0 10px 20px rgba(124,92,255,.12);
      object-fit:contain;
    }
    .brand-title{
      display:flex; flex-direction:column; line-height:1.1;
    }
    .brand-title strong{
      font-size:14px;
      letter-spacing:.2px;
    }
    .brand-title span{
      font-size:12px;
      color:var(--ink3);
    }

    .nav{
      display:flex;
      align-items:center;
      gap:14px;
      flex-wrap:nowrap;
      overflow:hidden;
      justify-content:flex-end;
    }
    .nav a{
      font-size:13px;
      color:rgba(17,24,39,.78);
      padding:10px 10px;
      border-radius:12px;
      transition: background .2s ease, transform .2s ease, color .2s ease;
      white-space:nowrap;
    }
    .nav a:hover{
      background: rgba(124,92,255,.08);
      color: rgba(17,24,39,.95);
      transform: translateY(-1px);
    }

    .nav-cta{
      display:flex; align-items:center; gap:10px; flex-wrap:nowrap;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      padding:12px 14px;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.70);
      color:rgba(17,24,39,.92);
      box-shadow: 0 8px 18px rgba(17,24,39,.08);
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
      font-size:13px;
      font-weight:650;
      cursor:pointer;
      user-select:none;
      white-space:nowrap;
    }
    .btn:hover{transform: translateY(-1px); box-shadow: 0 14px 26px rgba(17,24,39,.12); border-color: rgba(15,23,42,.20)}
    .btn.primary{
      border-color: rgba(11,87,255,.18);
      background: linear-gradient(135deg, rgba(11,87,255,.95), rgba(124,92,255,.88));
      color:#fff;
      box-shadow: 0 16px 40px rgba(11,87,255,.22);
    }
    .btn.primary:hover{
      box-shadow: 0 22px 58px rgba(11,87,255,.30);
    }
    .btn.ghost{
      background: rgba(255,255,255,.35);
      box-shadow:none;
    }

    .burger{
      display:none;
      width:44px; height:44px;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.70);
      box-shadow: 0 10px 24px rgba(17,24,39,.08);
      cursor:pointer;
      align-items:center; justify-content:center;
      transition: transform .18s ease;
    }
    .burger:hover{transform: translateY(-1px)}
    .burger svg{opacity:.9}

    .mobile-panel{
      display:none;
      padding:10px 0 16px;
    }
    .mobile-panel .row{
      display:flex; gap:10px; flex-wrap:wrap;
    }
    .mobile-panel a{
      flex: 1 1 calc(50% - 10px);
      padding:12px 12px;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.7);
      color: rgba(17,24,39,.85);
      font-size:13px;
      text-align:center;
    }

    main{padding-bottom:40px}

    .hero{
      position:relative;
      padding:34px 0 8px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap:18px;
      align-items:stretch;
    }

    .hero-card{
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.10);
      background:
        radial-gradient(900px 420px at 0% 0%, rgba(79,242,255,.18), transparent 52%),
        radial-gradient(900px 520px at 100% 0%, rgba(124,92,255,.18), transparent 52%),
        radial-gradient(700px 420px at 50% 60%, rgba(0,255,166,.10), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.82), rgba(255,255,255,.58));
      box-shadow: var(--shadow2);
      padding:22px 20px 18px;
      overflow:hidden;
      position:relative;
      min-height: 420px;
    }

    .aurora{
      position:absolute; inset:-120px -120px auto -120px;
      height:360px;
      background:
        radial-gradient(closest-side, rgba(79,242,255,.35), transparent 62%),
        radial-gradient(closest-side, rgba(124,92,255,.32), transparent 60%),
        radial-gradient(closest-side, rgba(0,255,166,.22), transparent 62%);
      filter: blur(14px);
      transform: translate3d(0,0,0);
      opacity:.9;
      pointer-events:none;
    }
    .gridlines{
      position:absolute; inset:0;
      background:
        linear-gradient(to right, rgba(15,23,42,.06) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(15,23,42,.06) 1px, transparent 1px);
      background-size: 46px 46px;
      opacity:.22;
      mask-image: radial-gradient(closest-side at 30% 20%, rgba(0,0,0,1), rgba(0,0,0,0) 70%);
      pointer-events:none;
    }

    .hero-top{
      position:relative;
      display:flex;
      gap:14px;
      align-items:flex-start;
      justify-content:space-between;
    }

    .pill{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:10px 12px;
      border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.55);
      color: rgba(17,24,39,.82);
      font-size:12px;
      font-weight:650;
      width:max-content;
      max-width:100%;
    }
    .dot{
      width:10px; height:10px;
      border-radius:50%;
      background: radial-gradient(circle at 30% 30%, #fff, rgba(255,255,255,.0) 45%), linear-gradient(135deg, var(--brandA), var(--brandB));
      box-shadow: 0 10px 20px rgba(124,92,255,.22);
    }

    h1{
      margin:14px 0 10px;
      font-size:34px;
      letter-spacing:-.5px;
      line-height:1.15;
    }
    .sub{
      margin:0;
      color: rgba(17,24,39,.74);
      font-size:14.5px;
      line-height:1.7;
      max-width: 62ch;
    }

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

    .mini-badges{
      display:flex; gap:10px; flex-wrap:wrap;
      margin-top:16px;
    }
    .mini-badge{
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.55);
      display:flex; gap:10px; align-items:center;
      min-width: 170px;
      flex: 1 1 auto;
    }
    .mini-badge b{
      font-size:13px;
    }
    .mini-badge span{
      display:block;
      font-size:12.5px;
      color: rgba(17,24,39,.66);
      margin-top:2px;
      line-height:1.3;
    }
    .ico{
      width:34px; height:34px;
      border-radius:12px;
      display:grid; place-items:center;
      background: linear-gradient(135deg, rgba(79,242,255,.26), rgba(124,92,255,.20));
      border:1px solid rgba(15,23,42,.08);
      flex: 0 0 auto;
    }
    .ico svg{width:18px; height:18px}

    .hero-right{
      display:flex;
      flex-direction:column;
      gap:12px;
    }

    .stat-strip{
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.10);
      background: linear-gradient(180deg, rgba(255,255,255,.75), rgba(255,255,255,.58));
      box-shadow: var(--shadow);
      padding:14px 14px 12px;
      position:relative;
      overflow:hidden;
    }
    .stat-strip:before{
      content:"";
      position:absolute; inset:-2px -2px auto -2px;
      height:80px;
      background:
        linear-gradient(90deg, rgba(79,242,255,.25), rgba(124,92,255,.22), rgba(0,255,166,.16));
      opacity:.55;
      filter: blur(10px);
      pointer-events:none;
    }
    .stat-grid{
      position:relative;
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
      margin-top:8px;
    }
    .stat{
      border-radius:16px;
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.62);
      padding:12px 12px;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .stat:hover{transform: translateY(-2px); box-shadow: 0 16px 30px rgba(17,24,39,.10)}
    .stat b{font-size:18px}
    .stat p{margin:6px 0 0; color: rgba(17,24,39,.66); font-size:12.5px; line-height:1.4}

    .quick-form{
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.10);
      background:
        radial-gradient(600px 220px at 30% 0%, rgba(124,92,255,.18), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.55));
      box-shadow: var(--shadow);
      padding:14px;
    }
    .quick-form h3{
      margin:2px 0 8px;
      font-size:14px;
      letter-spacing:.2px;
    }
    .quick-form .row{
      display:flex; gap:10px; align-items:center; justify-content:space-between;
      flex-wrap:wrap;
      margin-bottom:10px;
    }
    .tagline{
      font-size:12.5px;
      color: rgba(17,24,39,.70);
      line-height:1.4;
      margin:0;
    }
    .form-inline{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
    }
    .input{
      flex: 1 1 180px;
      min-width: 160px;
      padding:12px 12px;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.78);
      color: var(--ink);
      font-size:13px;
      transition: border-color .2s ease, background .2s ease, transform .2s ease;
    }
    .input::placeholder{color: rgba(17,24,39,.45)}
    .input:hover{border-color: rgba(15,23,42,.20)}
    .form-inline .btn{flex: 0 0 auto}

    .section{
      padding:26px 0;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:16px;
      margin-bottom:14px;
    }
    .section-head h2{
      margin:0;
      font-size:22px;
      letter-spacing:-.3px;
    }
    .section-head p{
      margin:0;
      color: rgba(17,24,39,.66);
      font-size:13.5px;
      line-height:1.7;
      max-width:60ch;
    }

    .surface{
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 14px 34px rgba(17,24,39,.08);
      padding:16px;
      overflow:hidden;
      position:relative;
    }

    .cards-3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    .cards-4{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap:12px;
    }
    .card{
      border-radius:18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      padding:14px;
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
      position:relative;
      overflow:hidden;
      min-height: 138px;
    }
    .card:hover{
      transform: translateY(-3px);
      box-shadow: 0 22px 50px rgba(17,24,39,.10);
      border-color: rgba(15,23,42,.18);
    }
    .card .k{
      display:flex; align-items:center; gap:10px;
      margin-bottom:10px;
    }
    .badge-ico{
      width:36px; height:36px;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.08);
      background: linear-gradient(135deg, rgba(79,242,255,.22), rgba(124,92,255,.18));
      display:grid; place-items:center;
      flex:0 0 auto;
    }
    .badge-ico svg{width:18px; height:18px}
    .card h3{
      margin:0;
      font-size:15.5px;
      letter-spacing:-.2px;
    }
    .card p{
      margin:8px 0 0;
      color: rgba(17,24,39,.68);
      font-size:13px;
      line-height:1.7;
    }

    .timeline{
      display:grid;
      grid-template-columns: 1fr;
      gap:12px;
    }
    .step{
      display:grid;
      grid-template-columns: 1fr 160px;
      gap:12px;
      align-items:center;
      padding:14px;
      border-radius:18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      transition: transform .22s ease, box-shadow .22s ease;
    }
    .step:hover{transform: translateY(-2px); box-shadow: 0 20px 40px rgba(17,24,39,.10)}
    .step-left{
      display:flex; align-items:flex-start; gap:12px;
    }
    .step-num{
      width:38px; height:38px;
      border-radius:14px;
      background: linear-gradient(135deg, rgba(79,242,255,.22), rgba(124,92,255,.20));
      border:1px solid rgba(15,23,42,.08);
      display:grid; place-items:center;
      font-weight:800;
      color: rgba(11,87,255,.95);
      flex:0 0 auto;
    }
    .step h3{margin:0; font-size:15.5px}
    .step .meta{
      margin-top:6px;
      color: rgba(17,24,39,.68);
      font-size:13px;
      line-height:1.6;
    }
    .step-right{
      display:flex; gap:10px; justify-content:flex-end; align-items:center;
    }
    .chip{
      padding:10px 12px;
      border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.60);
      font-size:12.5px;
      color: rgba(17,24,39,.74);
      white-space:nowrap;
    }

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

    .table-wrap{
      overflow:auto;
      border-radius:18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.60);
    }
    table{
      width:100%;
      border-collapse:collapse;
      min-width: 660px;
      font-size:13px;
    }
    th, td{
      border-bottom:1px solid rgba(15,23,42,.08);
      padding:12px 12px;
      text-align:left;
      vertical-align:top;
    }
    th{
      background: linear-gradient(180deg, rgba(124,92,255,.10), rgba(79,242,255,.06));
      color: rgba(17,24,39,.92);
      font-weight:800;
    }
    td{
      color: rgba(17,24,39,.70);
    }
    tr:last-child td{border-bottom:none}
    .mark{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      white-space:nowrap;
    }
    .mark i{
      width:18px; height:18px;
      border-radius:50%;
      background: linear-gradient(135deg, rgba(79,242,255,.50), rgba(124,92,255,.40));
      display:inline-block;
      border:1px solid rgba(15,23,42,.08);
      position:relative;
    }
    .mark.good i:after{
      content:"";
      position:absolute; inset:4px;
      border:2px solid rgba(255,255,255,.96);
      border-left:0; border-top:0;
      transform: rotate(45deg);
      width:5px; height:8px;
      left:5px; top:2px;
    }

    .faq{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
    }
    details{
      border-radius:18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      padding:12px 12px;
      transition: box-shadow .2s ease, transform .2s ease;
    }
    details:hover{transform: translateY(-2px); box-shadow: 0 18px 40px rgba(17,24,39,.10)}
    summary{
      cursor:pointer;
      list-style:none;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
      padding:2px 0;
      font-weight:800;
      color: rgba(17,24,39,.92);
      font-size:14px;
    }
    summary::-webkit-details-marker{display:none}
    .sum-right{
      flex:0 0 auto;
      width:30px; height:30px;
      border-radius:12px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      display:grid; place-items:center;
      transition: transform .2s ease;
    }
    details[open] .sum-right{transform: rotate(45deg)}
    .faq .ans{
      margin-top:10px;
      color: rgba(17,24,39,.70);
      font-size:13px;
      line-height:1.75;
    }

    .comments{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    .quote{
      min-height: 220px;
    }
    .quote .who{
      display:flex; align-items:center; gap:12px; margin-top:10px;
    }
    .avatar{
      width:40px; height:40px;
      border-radius:16px;
      background: linear-gradient(135deg, rgba(79,242,255,.25), rgba(124,92,255,.22));
      border:1px solid rgba(15,23,42,.08);
      display:grid; place-items:center;
      font-weight:900;
      color: rgba(11,87,255,.95);
      flex:0 0 auto;
    }
    .who b{font-size:13.5px}
    .who span{display:block; margin-top:2px; color: rgba(17,24,39,.62); font-size:12.5px}

    .cases{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    .case-card{
      padding:14px;
      border-radius:18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      display:flex;
      flex-direction:column;
      gap:10px;
      min-height: 280px;
      transition: transform .22s ease, box-shadow .22s ease;
      position:relative;
      overflow:hidden;
    }
    .case-card:hover{transform: translateY(-3px); box-shadow: 0 24px 55px rgba(17,24,39,.10)}
    .case-img-wrap{
      border-radius:16px;
      border:1px solid rgba(15,23,42,.08);
      background:
        radial-gradient(500px 180px at 10% 0%, rgba(79,242,255,.20), transparent 55%),
        radial-gradient(420px 160px at 90% 10%, rgba(124,92,255,.18), transparent 55%),
        rgba(255,255,255,.55);
      overflow:hidden;
      padding:8px;
    }
    .case-img{
      width:100%;
      height:auto;
      display:block;
      border-radius:12px;
      object-fit:cover;
    }
    .case-card h3{margin:0; font-size:15.5px}
    .case-meta{
      color: rgba(17,24,39,.68);
      font-size:13px;
      line-height:1.7;
      margin:0;
      flex:1 1 auto;
    }

    .article-grid{
      display:grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap:12px;
      align-items:start;
    }
    .article{
      padding:14px;
      border-radius:18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      transition: transform .22s ease, box-shadow .22s ease;
    }
    .article:hover{transform: translateY(-2px); box-shadow: 0 20px 44px rgba(17,24,39,.10)}
    .article .topline{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom:8px;
    }
    .pill-mini{
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      font-size:12px;
      color: rgba(17,24,39,.70);
      white-space:nowrap;
    }
    .article a.titlelink{
      display:block;
      font-weight:900;
      color: rgba(17,24,39,.92);
      line-height:1.35;
      margin:2px 0 8px;
      transition: color .2s ease;
      font-size:14.5px;
    }
    .article a.titlelink:hover{color: rgba(11,87,255,.95)}
    .article p{
      margin:0;
      color: rgba(17,24,39,.66);
      font-size:13px;
      line-height:1.7;
    }

    .form-grid{
      display:grid;
      grid-template-columns: 1.02fr .98fr;
      gap:12px;
      align-items:start;
    }

    .form-card{
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.66);
      box-shadow: 0 18px 44px rgba(17,24,39,.08);
      padding:16px;
    }
    .form-card h3{margin:0 0 6px; font-size:16px}
    .form-card p{margin:0 0 14px; color: rgba(17,24,39,.68); font-size:13.5px; line-height:1.7}
    form{
      display:grid;
      gap:10px;
    }
    .field-row{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
    }
    label{
      font-size:12.5px;
      color: rgba(17,24,39,.70);
      font-weight:750;
      margin-bottom:6px;
      display:block;
    }
    .control{
      width:100%;
      padding:12px 12px;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.82);
      font-size:13px;
      color: var(--ink);
      transition: border-color .2s ease, transform .2s ease, background .2s ease;
    }
    .control:hover{border-color: rgba(15,23,42,.20)}
    textarea.control{min-height:110px; resize:vertical}
    .form-actions{
      display:flex; gap:10px; flex-wrap:wrap; align-items:center; justify-content:space-between;
      margin-top:4px;
    }
    .small-note{
      color: rgba(17,24,39,.62);
      font-size:12.5px;
      line-height:1.6;
      margin:0;
    }

    .helper-card{
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.10);
      background:
        radial-gradient(700px 240px at 10% 0%, rgba(79,242,255,.20), transparent 55%),
        radial-gradient(500px 220px at 100% 20%, rgba(124,92,255,.18), transparent 58%),
        rgba(255,255,255,.62);
      box-shadow: 0 18px 44px rgba(17,24,39,.08);
      padding:16px;
      overflow:hidden;
      position:relative;
    }
    .helper-card h3{margin:0 0 10px; font-size:16px}
    .helper-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .helper-item{
      display:flex; gap:10px; align-items:flex-start;
      padding:12px;
      border-radius:18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
    }
    .helper-item b{font-size:13.5px}
    .helper-item span{
      display:block;
      margin-top:3px;
      color: rgba(17,24,39,.66);
      font-size:12.8px;
      line-height:1.6;
    }

    .price-grid{
      display:grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap:12px;
      align-items:stretch;
    }
    .price-card{
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.66);
      padding:14px;
      box-shadow: 0 14px 34px rgba(17,24,39,.08);
      position:relative;
      overflow:hidden;
    }
    .price-card:before{
      content:"";
      position:absolute; inset:-80px -60px auto -60px;
      height:130px;
      background: linear-gradient(90deg, rgba(79,242,255,.25), rgba(124,92,255,.22), rgba(0,255,166,.14));
      filter: blur(12px);
      opacity:.65;
      pointer-events:none;
    }
    .price-card h3{
      position:relative;
      margin:0 0 6px;
      font-size:15.5px;
    }
    .price-card p{
      position:relative;
      margin:0 0 10px;
      color: rgba(17,24,39,.68);
      font-size:13px;
      line-height:1.7;
    }
    .price{
      position:relative;
      display:flex; align-items:baseline; gap:8px;
      margin-top:6px;
    }
    .price b{font-size:26px; letter-spacing:-.6px}
    .price span{color: rgba(17,24,39,.62); font-size:12.5px}
    .price ul{
      position:relative;
      margin:10px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:8px;
    }
    .price li{
      display:flex; gap:10px; align-items:flex-start;
      color: rgba(17,24,39,.70);
      font-size:13px;
      line-height:1.6;
    }
    .tick{
      width:18px; height:18px;
      border-radius:6px;
      border:1px solid rgba(15,23,42,.10);
      background: linear-gradient(135deg, rgba(79,242,255,.30), rgba(124,92,255,.22));
      display:grid; place-items:center;
      flex: 0 0 auto;
      margin-top:1px;
    }
    .tick svg{width:12px; height:12px}

    .tagcloud{
      display:flex; flex-wrap:wrap; gap:10px;
      padding:2px 0;
    }
    .t{
      padding:10px 12px;
      border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      color: rgba(17,24,39,.74);
      font-size:12.8px;
      transition: transform .2s ease, box-shadow .2s ease;
      cursor:pointer;
      user-select:none;
    }
    .t:hover{transform: translateY(-2px); box-shadow: 0 18px 40px rgba(17,24,39,.10)}

    .contact-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      align-items:stretch;
    }
    .contact-card{
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.66);
      padding:16px;
      box-shadow: 0 14px 34px rgba(17,24,39,.08);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:14px;
    }
    .contact-top h3{margin:0 0 8px; font-size:16px}
    .contact-row{
      display:flex; gap:12px; align-items:center; flex-wrap:wrap;
      color: rgba(17,24,39,.70);
      font-size:13px;
    }
    .contact-row b{color: rgba(17,24,39,.92)}
    .qrcode{
      width:128px;
      border-radius:18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      padding:10px;
    }
    .qrcode img{
      width:100%;
      height:auto;
      display:block;
      border-radius:12px;
      object-fit:contain;
    }

    .footer{
      margin-top:10px;
      background: linear-gradient(180deg, rgba(255,255,255,.35), rgba(255,255,255,.75));
      border-top:1px solid rgba(15,23,42,.08);
      padding:22px 0;
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap:14px;
      align-items:start;
    }
    .footer-left{
      display:flex; flex-direction:column; gap:10px;
    }
    .footer-left .brandline{
      display:flex; gap:12px; align-items:center;
    }
    .footer-left p{
      margin:0;
      color: rgba(17,24,39,.66);
      font-size:13px;
      line-height:1.7;
      max-width:66ch;
    }
    .friend-grid{
      display:flex; gap:12px; flex-wrap:wrap;
    }
    .friend-grid a{
      padding:10px 12px;
      border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      color: rgba(17,24,39,.72);
      font-size:12.8px;
      transition: transform .2s ease, box-shadow .2s ease;
      white-space:nowrap;
    }
    .friend-grid a:hover{transform: translateY(-2px); box-shadow: 0 18px 40px rgba(17,24,39,.10)}
    .footer-right{
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.66);
      padding:14px;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .footer-right .links{
      display:grid;
      gap:10px;
    }
    .footer-right a{
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      color: rgba(17,24,39,.72);
      font-size:13px;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .footer-right a:hover{transform: translateY(-2px); box-shadow: 0 18px 40px rgba(17,24,39,.10)}
    .copyright{
      margin-top:14px;
      color: rgba(17,24,39,.58);
      font-size:12.5px;
      display:flex;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      align-items:center;
    }

    .to-top{
      position:fixed;
      right:14px;
      bottom:92px;
      z-index:80;
      width:46px; height:46px;
      border-radius:18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 18px 45px rgba(17,24,39,.14);
      display:grid;
      place-items:center;
      cursor:pointer;
      opacity:0;
      transform: translateY(8px);
      pointer-events:none;
      transition: opacity .2s ease, transform .2s ease;
    }
    .to-top.show{
      opacity:1;
      transform: translateY(0);
      pointer-events:auto;
    }

    .float-kefu{
      position:fixed;
      right:14px;
      bottom:14px;
      z-index:90;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-end;
    }
    .kefu-card{
      width:220px;
      border-radius: 22px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.80);
      box-shadow: 0 22px 60px rgba(17,24,39,.16);
      padding:12px;
      display:none;
    }
    .kefu-card .head{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom:10px;
    }
    .kefu-card .head b{font-size:13.5px}
    .kefu-card .head button{
      width:34px; height:34px;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      cursor:pointer;
    }
    .kefu-card .body{
      display:flex; gap:10px; align-items:center;
    }
    .kefu-card .body img{
      width:64px; height:64px;
      border-radius:18px;
      border:1px solid rgba(15,23,42,.10);
      object-fit:cover;
      background: rgba(255,255,255,.62);
    }
    .kefu-card .body .txt{
      display:flex; flex-direction:column; gap:4px;
    }
    .kefu-card .body .txt span{
      color: rgba(17,24,39,.62);
      font-size:12.5px;
      line-height:1.35;
    }
    .kefu-launch{
      width:52px; height:52px;
      border-radius: 22px;
      border:1px solid rgba(15,23,42,.10);
      background: linear-gradient(135deg, rgba(79,242,255,.28), rgba(124,92,255,.22));
      box-shadow: 0 22px 60px rgba(17,24,39,.18);
      cursor:pointer;
      display:grid;
      place-items:center;
      transition: transform .2s ease;
      position:relative;
    }
    .kefu-launch:hover{transform: translateY(-2px)}
    .kefu-launch .pulse{
      position:absolute; inset:-8px;
      border-radius:26px;
      background: radial-gradient(circle at 50% 50%, rgba(79,242,255,.22), transparent 62%);
      animation: pulse 2.2s ease-in-out infinite;
      pointer-events:none;
      opacity:.9;
    }
    @keyframes pulse{
      0%{transform: scale(.95); opacity:.75}
      55%{transform: scale(1.05); opacity:.95}
      100%{transform: scale(.95); opacity:.75}
    }

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

    @media (max-width: 980px){
      .hero-grid{grid-template-columns: 1fr; }
      .hero-card{min-height: unset}
      .cards-3{grid-template-columns: 1fr}
      .cards-4{grid-template-columns: 1fr 1fr}
      .faq{grid-template-columns: 1fr}
      .comments{grid-template-columns: 1fr}
      .cases{grid-template-columns: 1fr}
      .article-grid{grid-template-columns: 1fr}
      .split{grid-template-columns: 1fr}
      .price-grid{grid-template-columns: 1fr}
      .form-grid{grid-template-columns: 1fr}
      .contact-grid{grid-template-columns: 1fr}
      .step{grid-template-columns: 1fr}
      .step-right{justify-content:flex-start}
      .nav{display:none}
      .burger{display:flex}
      .mobile-panel{display:block}
      .kefu-card{display:none}
      .to-top{bottom:92px}
    }

    @media (max-width: 420px){
      h1{font-size:28px}
      .field-row{grid-template-columns: 1fr}
      .brand{min-width: unset}
    }

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