:root{
      --bg0:#fff7fb;
      --bg1:#f7fbff;
      --card:#ffffff;
      --text:#171717;
      --muted:#5a5a5a;
      --muted2:#7a7a7a;
      --line:rgba(16,24,40,.10);
      --shadow: 0 16px 48px rgba(17, 24, 39, .10);
      --shadow2: 0 10px 30px rgba(17, 24, 39, .08);
      --radius:18px;
      --radius2:14px;

      --a:#ff2d8d;
      --b:#6a3cff;
      --c:#00c2ff;
      --d:#00d38f;
      --e:#ffb800;

      --grad: linear-gradient(135deg, rgba(255,45,141,.18), rgba(106,60,255,.16), rgba(0,194,255,.15));
      --grad2: linear-gradient(135deg, #ff2d8d 0%, #6a3cff 45%, #00c2ff 100%);
      --grad3: linear-gradient(135deg, rgba(255,45,141,.24), rgba(0,211,143,.18));
      --focus: 0 0 0 4px rgba(106,60,255,.18);
      --btnText:#0b0b0b;
      --safeText:#111827;

      --container: 1120px;
    }

    *{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 CJK SC", "Source Han Sans SC", sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 700px at 10% -10%, rgba(255,45,141,.18), transparent 52%),
        radial-gradient(900px 600px at 92% 10%, rgba(106,60,255,.18), transparent 55%),
        radial-gradient(850px 520px at 85% 100%, rgba(0,194,255,.14), transparent 55%),
        linear-gradient(180deg, var(--bg0), #ffffff 35%, #fbfbff 100%);
      overflow-x:hidden;
    }

    a{color:inherit; text-decoration:none}
    .container{
      width: min(var(--container), calc(100% - 32px));
      margin: 0 auto;
    }

    .skip{
      position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden;
    }
    .skip:focus{
      left:16px; top:16px; width:auto; height:auto; padding:10px 14px;
      background:var(--card); border:1px solid var(--line); border-radius:12px;
      z-index:9999;
      box-shadow: var(--shadow2);
      outline:none;
    }

    header{
      position:sticky; top:0; z-index:50;
      background: rgba(255,255,255,.75);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(16,24,40,.08);
    }
    .nav-wrap{
      display:flex; align-items:center; justify-content:space-between;
      padding: 12px 0;
      gap: 16px;
    }
    .brand{
      display:flex; align-items:center; gap:12px; min-width: 210px;
    }
    .ai-page-logo{
      width:40px; height:40px; object-fit:contain;
      filter: saturate(1.1) contrast(1.05);
    }
    .brand-title{
      display:flex; flex-direction:column; line-height:1.1;
    }
    .brand-title strong{
      font-size:14px; letter-spacing:.2px;
    }
    .brand-title span{
      font-size:12px; color:var(--muted2);
    }

    nav .nav-links{
      display:flex; align-items:center; gap:16px; flex-wrap:wrap; justify-content:flex-end;
    }
    .nav-links a{
      font-size:13px; color:rgba(17,17,17,.86);
      padding:8px 10px; border-radius:12px;
      border:1px solid transparent;
      transition: transform .15s ease, background .15s ease, border-color .15s ease;
      white-space:nowrap;
    }
    .nav-links a:hover{
      background: rgba(106,60,255,.08);
      border-color: rgba(106,60,255,.18);
      transform: translateY(-1px);
    }

    .nav-cta{
      display:flex; align-items:center; gap:10px;
      justify-content:flex-end;
      min-width: 220px;
    }

    .btn{
      display:inline-flex; align-items:center; justify-content:center;
      gap:10px;
      padding: 10px 14px;
      border-radius: 14px;
      border: 1px solid rgba(16,24,40,.12);
      background: rgba(255,255,255,.72);
      color: var(--safeText);
      font-weight: 650;
      font-size: 13px;
      cursor:pointer;
      transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
      user-select:none;
      white-space:nowrap;
    }
    .btn:focus{outline:none; box-shadow: var(--focus)}
    .btn:hover{
      transform: translateY(-1px);
      box-shadow: 0 10px 24px rgba(17,24,39,.10);
      background: rgba(255,255,255,.92);
      border-color: rgba(16,24,40,.18);
    }

    .btn-primary{
      border: 1px solid rgba(0,0,0,.08);
      background: linear-gradient(135deg, rgba(255,45,141,.95), rgba(106,60,255,.92), rgba(0,194,255,.88));
      color: #0b0b0b;
      box-shadow: 0 14px 30px rgba(106,60,255,.18);
    }
    .btn-primary:hover{
      box-shadow: 0 18px 38px rgba(106,60,255,.24);
    }

    .btn-ghost{
      background: rgba(255,255,255,.45);
    }

    .hamburger{
      display:none;
      width:42px; height:42px; border-radius:14px;
      border:1px solid rgba(16,24,40,.12);
      background: rgba(255,255,255,.72);
      cursor:pointer;
      transition: transform .15s ease, background .15s ease;
    }
    .hamburger:hover{transform: translateY(-1px); background: rgba(255,255,255,.95)}
    .hamburger:focus{outline:none; box-shadow: var(--focus)}
    .ham-lines{
      width:18px; height:12px; margin:0 auto; position:relative;
    }
    .ham-lines span{
      position:absolute; left:0; right:0; height:2px; border-radius:2px;
      background: rgba(17,17,17,.86);
      transition: transform .2s ease, opacity .2s ease, top .2s ease;
    }
    .ham-lines span:nth-child(1){top:0}
    .ham-lines span:nth-child(2){top:5px}
    .ham-lines span:nth-child(3){top:10px}

    .mobile-panel{
      display:none;
      padding: 10px 0 14px;
    }
    .mobile-panel .mobile-links{
      display:flex; flex-direction:column; gap:10px;
      border-top: 1px dashed rgba(16,24,40,.12);
      padding-top: 12px;
    }
    .mobile-panel .mobile-links a{
      padding: 12px 12px;
      border-radius: 14px;
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.65);
      font-size: 14px;
    }

    main{padding-bottom: 24px}

    .hero{
      padding: 28px 0 14px;
      position:relative;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(800px 420px at 18% 18%, rgba(255,45,141,.18), transparent 55%),
        radial-gradient(700px 380px at 78% 28%, rgba(106,60,255,.18), transparent 58%),
        radial-gradient(600px 340px at 70% 92%, rgba(0,194,255,.14), transparent 60%),
        linear-gradient(135deg, rgba(255,45,141,.06), rgba(0,194,255,.06));
      pointer-events:none;
    }

    .hero-inner{
      position:relative;
      display:grid;
      grid-template-columns: 1.25fr .75fr;
      gap: 18px;
      align-items:start;
    }

    .hero-left{
      padding: 18px 0 10px;
    }

    .pill-row{
      display:flex; flex-wrap:wrap; gap:10px; align-items:center;
      margin-bottom: 14px;
    }
    .pill{
      display:inline-flex; align-items:center; gap:10px;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(255,255,255,.65);
      border: 1px solid rgba(16,24,40,.10);
      box-shadow: 0 10px 24px rgba(17,24,39,.06);
      font-size: 13px; color: rgba(17,17,17,.88);
      user-select:none;
    }
    .dot{
      width:10px; height:10px; border-radius:50%;
      background: var(--grad2);
      box-shadow: 0 0 0 4px rgba(106,60,255,.12);
    }

    h1{
      margin: 0 0 12px;
      font-size: clamp(26px, 3.2vw, 40px);
      line-height:1.12;
      letter-spacing:-.5px;
    }
    .hero-sub{
      margin: 0 0 18px;
      color: rgba(17,17,17,.78);
      font-size: 15px;
      line-height:1.7;
      max-width: 62ch;
    }

    .hero-actions{
      display:flex; align-items:center; gap:12px; flex-wrap:wrap;
      margin: 18px 0 8px;
    }

    .trust-row{
      margin-top: 16px;
      display:flex; align-items:center; gap: 12px; flex-wrap:wrap;
    }
    .trust-item{
      display:flex; align-items:center; gap:10px;
      padding: 10px 12px;
      border-radius: 14px;
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.62);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      font-size: 13px;
      color: rgba(17,17,17,.86);
    }
    .icon{
      width:28px; height:28px; border-radius:10px;
      display:inline-flex; align-items:center; justify-content:center;
      background: rgba(106,60,255,.12);
      border: 1px solid rgba(106,60,255,.20);
      flex: 0 0 auto;
    }

    .hero-right{
      display:flex; flex-direction:column; gap:12px;
      padding-top: 6px;
    }

    .data-grid{
      display:grid; grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .metric{
      border-radius: var(--radius);
      background: rgba(255,255,255,.7);
      border:1px solid rgba(16,24,40,.10);
      box-shadow: 0 12px 28px rgba(17,24,39,.06);
      padding: 14px 14px 12px;
      position:relative;
      overflow:hidden;
      min-height: 92px;
      transition: transform .18s ease, box-shadow .18s ease;
    }
    .metric::before{
      content:"";
      position:absolute; inset:-1px;
      background: radial-gradient(240px 140px at 18% 22%, rgba(255,45,141,.22), transparent 56%),
                  radial-gradient(260px 160px at 92% 20%, rgba(0,194,255,.18), transparent 58%);
      opacity:.7; pointer-events:none;
    }
    .metric:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 44px rgba(17,24,39,.10);
    }
    .metric strong{
      position:relative;
      display:block;
      font-size: 20px;
      letter-spacing:-.3px;
    }
    .metric span{
      position:relative;
      display:block;
      margin-top: 6px;
      color: rgba(17,17,17,.72);
      font-size: 12.5px;
      line-height:1.35;
    }

    .mini-card{
      border-radius: var(--radius);
      background: linear-gradient(135deg, rgba(255,255,255,.74), rgba(255,255,255,.55));
      border:1px solid rgba(16,24,40,.10);
      box-shadow: 0 12px 28px rgba(17,24,39,.06);
      padding: 14px;
      position:relative;
      overflow:hidden;
    }
    .mini-card::before{
      content:"";
      position:absolute; inset:-2px;
      background: linear-gradient(135deg, rgba(255,45,141,.20), rgba(106,60,255,.16), rgba(0,194,255,.16));
      opacity:.35; pointer-events:none;
    }
    .mini-card .row{
      position:relative;
      display:flex; align-items:flex-start; gap:12px;
    }
    .mini-card .tag{
      display:inline-flex; align-items:center;
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(255,255,255,.7);
      border:1px solid rgba(16,24,40,.10);
      font-size: 12px; color: rgba(17,17,17,.84);
      white-space:nowrap;
    }
    .mini-card h3{
      position:relative;
      margin: 6px 0 6px;
      font-size: 15px;
      letter-spacing: -.2px;
    }
    .mini-card p{
      position:relative;
      margin: 0;
      color: rgba(17,17,17,.72);
      font-size: 13px;
      line-height:1.55;
    }

    .section{
      padding: 26px 0;
    }
    .section-title{
      display:flex; align-items:flex-end; justify-content:space-between; gap:12px;
      margin-bottom: 14px;
    }
    .section-title h2{
      margin:0;
      font-size: 22px;
      letter-spacing:-.3px;
    }
    .section-title p{
      margin:0;
      color: rgba(17,17,17,.70);
      font-size: 13.5px;
      line-height:1.55;
      max-width: 55ch;
    }

    .cards-3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .card{
      background: rgba(255,255,255,.76);
      border:1px solid rgba(16,24,40,.10);
      border-radius: var(--radius);
      box-shadow: 0 12px 28px rgba(17,24,39,.06);
      padding: 16px;
      position:relative;
      overflow:hidden;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      min-height: 170px;
    }
    .card::after{
      content:"";
      position:absolute; inset:-1px;
      background: radial-gradient(320px 180px at 20% 10%, rgba(255,45,141,.18), transparent 55%),
                  radial-gradient(320px 200px at 98% 30%, rgba(106,60,255,.16), transparent 60%);
      opacity:.55; pointer-events:none;
    }
    .card:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 44px rgba(17,24,39,.10);
      border-color: rgba(106,60,255,.20);
    }
    .card > *{position:relative}
    .card h3{
      margin: 10px 0 8px;
      font-size: 16px;
      letter-spacing:-.2px;
    }
    .card p{
      margin:0;
      color: rgba(17,17,17,.72);
      font-size: 13.5px;
      line-height:1.65;
    }

    .list{
      margin: 12px 0 0;
      padding: 0;
      list-style:none;
      display:flex; flex-direction:column; gap:10px;
    }
    .li{
      display:flex; gap:10px; align-items:flex-start;
      font-size: 13.5px; color: rgba(17,17,17,.76);
      line-height:1.55;
    }
    .check{
      width:18px; height:18px; border-radius:6px;
      background: rgba(0,211,143,.14);
      border: 1px solid rgba(0,211,143,.24);
      display:inline-flex; align-items:center; justify-content:center;
      margin-top: 2px;
      flex: 0 0 auto;
    }
    .check svg{display:block}

    .steps{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
    }
    .step{
      padding: 16px;
      border-radius: var(--radius);
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.70);
      box-shadow: 0 12px 28px rgba(17,24,39,.06);
      position:relative;
      overflow:hidden;
      transition: transform .18s ease, box-shadow .18s ease;
      min-height: 190px;
    }
    .step::before{
      content:"";
      position:absolute; inset:-2px;
      background: linear-gradient(135deg, rgba(255,45,141,.12), rgba(106,60,255,.10), rgba(0,194,255,.10));
      opacity:.7; pointer-events:none;
    }
    .step:hover{transform: translateY(-2px); box-shadow: 0 18px 44px rgba(17,24,39,.10)}
    .step > *{position:relative}
    .step .num{
      display:inline-flex; align-items:center; justify-content:center;
      width:34px; height:34px; border-radius:12px;
      background: rgba(255,255,255,.74);
      border:1px solid rgba(16,24,40,.10);
      font-weight: 800;
      letter-spacing:-.4px;
      margin-bottom: 10px;
    }
    .step h3{margin: 0 0 8px; font-size: 15px}
    .step p{margin:0; color: rgba(17,17,17,.72); font-size: 13.5px; line-height:1.65}

    .split{
      display:grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 14px;
      align-items:start;
    }

    .panel{
      background: rgba(255,255,255,.76);
      border:1px solid rgba(16,24,40,.10);
      border-radius: var(--radius);
      box-shadow: 0 12px 28px rgba(17,24,39,.06);
      padding: 16px;
    }
    .panel h3{margin: 2px 0 10px; font-size: 16px}
    .panel p{margin: 0; color: rgba(17,17,17,.72); font-size: 13.5px; line-height:1.7}

    .ability-grid{
      display:grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      margin-top: 12px;
    }
    .ability{
      border-radius: var(--radius2);
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.72);
      padding: 12px;
      transition: transform .18s ease, border-color .18s ease;
      min-height: 112px;
    }
    .ability:hover{transform: translateY(-2px); border-color: rgba(106,60,255,.20)}
    .ability .top{
      display:flex; align-items:center; gap:10px;
      margin-bottom: 8px;
    }
    .badge{
      width:30px; height:30px; border-radius:12px;
      background: rgba(106,60,255,.12);
      border: 1px solid rgba(106,60,255,.20);
      display:inline-flex; align-items:center; justify-content:center;
    }
    .ability strong{font-size: 14px; letter-spacing:-.2px}
    .ability span{
      display:block;
      margin-top: 2px;
      color: rgba(17,17,17,.72);
      font-size: 13px;
      line-height:1.6;
    }

    .table-wrap{
      overflow:auto;
      border-radius: var(--radius);
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.70);
      box-shadow: 0 12px 28px rgba(17,24,39,.06);
    }
    table{
      width:100%;
      border-collapse:collapse;
      min-width: 720px;
    }
    th, td{
      padding: 12px 12px;
      border-bottom: 1px solid rgba(16,24,40,.08);
      font-size: 13.5px;
      text-align:left;
      vertical-align:top;
    }
    th{
      background: linear-gradient(135deg, rgba(255,45,141,.14), rgba(106,60,255,.12), rgba(0,194,255,.10));
      color: rgba(17,17,17,.88);
      font-weight: 800;
      letter-spacing:-.2px;
    }
    td{color: rgba(17,17,17,.76)}
    .mark{
      display:inline-flex; align-items:center; gap:8px;
      padding: 7px 10px;
      border-radius: 999px;
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.65);
      font-weight: 750;
      font-size: 12.5px;
      white-space:nowrap;
    }
    .mark.good{
      background: rgba(0,211,143,.10);
      border-color: rgba(0,211,143,.22);
    }

    .compare-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px; flex-wrap:wrap;
      margin-bottom: 12px;
    }
    .rating{
      display:flex; align-items:center; gap:14px;
    }
    .stars{
      display:flex; gap:6px; align-items:center;
    }
    .star svg{display:block}
    .score{
      display:flex; flex-direction:column;
      line-height:1.1;
    }
    .score strong{font-size: 26px; letter-spacing:-.6px}
    .score span{color: rgba(17,17,17,.72); font-size: 13px}

    .compare-cta{
      display:flex; gap:10px; align-items:center; flex-wrap:wrap;
      justify-content:flex-end;
    }

    .accordion{
      display:grid; grid-template-columns: 1fr 1fr; gap: 12px;
    }
    details{
      background: rgba(255,255,255,.76);
      border:1px solid rgba(16,24,40,.10);
      border-radius: var(--radius);
      box-shadow: 0 10px 22px rgba(17,24,39,.05);
      padding: 12px 14px;
      transition: border-color .18s ease, transform .18s ease;
    }
    details[open]{border-color: rgba(106,60,255,.22)}
    details summary{
      cursor:pointer;
      list-style:none;
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      font-weight: 800;
      letter-spacing:-.2px;
      color: rgba(17,17,17,.9);
      font-size: 14px;
      padding: 2px 0;
    }
    details summary::-webkit-details-marker{display:none}
    .sum-icon{
      width:26px; height:26px; border-radius:10px;
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.66);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      margin-top:-2px;
      transition: transform .18s ease;
    }
    details[open] .sum-icon{transform: rotate(45deg)}
    details .content{
      padding-top: 10px;
      color: rgba(17,17,17,.72);
      font-size: 13.5px;
      line-height:1.7;
    }

    .reviews{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
    }
    .review{
      padding: 16px;
      border-radius: var(--radius);
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.76);
      box-shadow: 0 12px 28px rgba(17,24,39,.06);
      transition: transform .18s ease, box-shadow .18s ease;
      min-height: 190px;
    }
    .review:hover{transform: translateY(-2px); box-shadow: 0 18px 44px rgba(17,24,39,.10)}
    .review .who{
      display:flex; align-items:center; gap:10px; margin-bottom: 10px;
    }
    .avatar{
      width:36px; height:36px; border-radius:14px;
      background: linear-gradient(135deg, rgba(255,45,141,.18), rgba(106,60,255,.16), rgba(0,194,255,.14));
      border:1px solid rgba(16,24,40,.10);
      display:flex; align-items:center; justify-content:center;
      font-weight: 900;
      color: rgba(17,17,17,.86);
    }
    .review strong{font-size: 14px}
    .review .role{
      color: rgba(17,17,17,.66); font-size: 12.8px; margin-top:2px
    }
    .review p{
      margin:0;
      color: rgba(17,17,17,.72);
      font-size: 13.5px; line-height:1.7;
    }

    .cases{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 14px;
      align-items:start;
    }
    .case-list{
      display:grid; gap: 12px;
    }
    .case-item{
      display:flex; gap:12px; align-items:flex-start;
      padding: 14px;
      border-radius: var(--radius);
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.76);
      box-shadow: 0 12px 28px rgba(17,24,39,.06);
      transition: transform .18s ease, border-color .18s ease;
    }
    .case-item:hover{transform: translateY(-2px); border-color: rgba(106,60,255,.22)}
    .case-bullet{
      width:38px; height:38px; border-radius:16px;
      background: rgba(106,60,255,.12);
      border:1px solid rgba(106,60,255,.20);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
    }
    .case-item h3{
      margin: 0 0 6px;
      font-size: 14.5px;
      letter-spacing:-.2px;
    }
    .case-item p{
      margin:0;
      color: rgba(17,17,17,.72);
      font-size: 13.5px; line-height:1.6;
    }
    .case-side{
      display:flex; flex-direction:column; gap:12px;
    }
    .tag-cloud{
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .chip{
      padding: 8px 10px;
      border-radius: 999px;
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.72);
      font-size: 12.8px;
      color: rgba(17,17,17,.78);
      user-select:none;
      transition: transform .18s ease, border-color .18s ease, background .18s ease;
    }
    .chip:hover{
      transform: translateY(-1px);
      border-color: rgba(255,45,141,.22);
      background: rgba(255,45,141,.06);
    }

    .img-strip{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }
    .img-wrap{
      border-radius: var(--radius);
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 12px 28px rgba(17,24,39,.06);
      padding: 10px;
      overflow:hidden;
    }
    .img-wrap .frame{
      border-radius: 14px;
      background:
        radial-gradient(220px 160px at 20% 25%, rgba(255,45,141,.15), transparent 60%),
        radial-gradient(240px 170px at 90% 10%, rgba(106,60,255,.14), transparent 62%),
        linear-gradient(180deg, rgba(255,255,255,.9), rgba(255,255,255,.65));
      border:1px solid rgba(16,24,40,.08);
      padding: 10px;
      display:flex;
      align-items:center;
      justify-content:center;
    }
    .img-wrap img{
      width:100%;
      height:auto;
      display:block;
      border-radius: 12px;
      object-fit:contain;
      background: rgba(255,255,255,.8);
      filter: saturate(1.05) contrast(1.02);
    }
    .img-wrap .cap{
      margin-top: 10px;
      color: rgba(17,17,17,.70);
      font-size: 12.8px;
      line-height:1.5;
    }

    .timeline{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .titem{
      padding: 14px;
      border-radius: var(--radius);
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.76);
      box-shadow: 0 12px 28px rgba(17,24,39,.06);
      position:relative;
      overflow:hidden;
      transition: transform .18s ease;
      min-height: 150px;
    }
    .titem:hover{transform: translateY(-2px)}
    .titem::before{
      content:"";
      position:absolute; inset:-2px;
      background: radial-gradient(280px 160px at 15% 15%, rgba(0,194,255,.14), transparent 56%),
                  radial-gradient(280px 180px at 92% 22%, rgba(255,45,141,.12), transparent 62%);
      opacity:.65; pointer-events:none;
    }
    .titem > *{position:relative}
    .titem .trow{
      display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
      margin-bottom: 10px;
    }
    .titem .when{
      font-weight: 900;
      letter-spacing:-.3px;
      background: rgba(255,255,255,.7);
      border:1px solid rgba(16,24,40,.10);
      padding: 6px 10px;
      border-radius: 999px;
      font-size: 12.5px;
      white-space:nowrap;
    }
    .titem h3{margin:0 0 6px; font-size: 14.8px}
    .titem p{margin:0; color: rgba(17,17,17,.72); font-size: 13.5px; line-height:1.65}

    .form-grid{
      display:grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 14px;
      align-items:start;
    }

    form{
      display:grid; gap: 12px;
    }
    .field{
      display:flex; flex-direction:column; gap:8px;
    }
    label{
      font-size: 13px;
      color: rgba(17,17,17,.82);
      font-weight: 750;
      letter-spacing:-.1px;
    }
    input, select, textarea{
      width:100%;
      padding: 12px 12px;
      border-radius: 14px;
      border:1px solid rgba(16,24,40,.14);
      background: rgba(255,255,255,.78);
      color: rgba(17,17,17,.92);
      font-size: 14px;
      outline:none;
      transition: box-shadow .15s ease, border-color .15s ease, background .15s ease;
    }
    textarea{min-height: 108px; resize: vertical}
    input:focus, select:focus, textarea:focus{
      box-shadow: var(--focus);
      border-color: rgba(106,60,255,.28);
      background: rgba(255,255,255,.95);
    }
    .form-actions{
      display:flex; gap: 12px; align-items:center; flex-wrap:wrap;
      margin-top: 4px;
    }
    .hint{
      color: rgba(17,17,17,.64);
      font-size: 12.8px;
      line-height:1.6;
      margin:0;
    }

    .btn-submit{
      min-width: 170px;
    }

    .footer{
      border-top: 1px solid rgba(16,24,40,.08);
      background: linear-gradient(180deg, rgba(255,255,255,.65), rgba(255,255,255,.78));
      padding: 18px 0 26px;
    }
    .footer-inner{
      display:grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 14px;
      align-items:start;
    }
    .foot-brand{
      display:flex; gap: 12px; align-items:flex-start;
    }
    .foot-brand .logo{
      width:46px; height:46px; border-radius:18px;
      background: rgba(255,255,255,.75);
      border:1px solid rgba(16,24,40,.10);
      display:flex; align-items:center; justify-content:center;
      overflow:hidden;
      box-shadow: 0 12px 26px rgba(17,24,39,.06);
      flex: 0 0 auto;
    }
    .foot-brand img{width:36px; height:36px; object-fit:contain}
    .foot-brand h3{margin: 0 0 6px; font-size: 16px}
    .foot-brand p{margin:0; color: rgba(17,17,17,.70); font-size: 13.5px; line-height:1.65}

    .footer-right{
      display:flex; flex-direction:column; gap: 10px;
      align-items:flex-start;
    }
    .linkrow{
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .linkrow a{
      padding: 8px 10px;
      border-radius: 999px;
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.70);
      font-size: 12.8px;
      color: rgba(17,17,17,.78);
      transition: transform .18s ease, border-color .18s ease;
      white-space:nowrap;
    }
    .linkrow a:hover{
      transform: translateY(-1px);
      border-color: rgba(255,45,141,.22);
    }

    .copyright{
      margin-top: 10px;
      padding-top: 12px;
      border-top: 1px dashed rgba(16,24,40,.14);
      color: rgba(17,17,17,.62);
      font-size: 12.5px;
      line-height:1.6;
    }

    .float-qa{
      position:fixed;
      right: 14px;
      bottom: 14px;
      z-index: 80;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-end;
    }
    .float-btn{
      width: 52px; height: 52px; border-radius: 18px;
      border:1px solid rgba(16,24,40,.12);
      background: rgba(255,255,255,.78);
      box-shadow: 0 18px 42px rgba(17,24,39,.16);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .18s ease, background .18s ease;
    }
    .float-btn:hover{transform: translateY(-2px); background: rgba(255,255,255,.95)}
    .float-pop{
      width: 280px;
      border-radius: 18px;
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.88);
      box-shadow: 0 24px 70px rgba(17,24,39,.20);
      overflow:hidden;
      transform-origin: 100% 100%;
      animation: popIn .18s ease both;
    }
    @keyframes popIn{
      from{opacity:0; transform: scale(.96) translateY(8px)}
      to{opacity:1; transform: scale(1) translateY(0)}
    }
    .float-pop .top{
      padding: 12px 12px 10px;
      background: linear-gradient(135deg, rgba(255,45,141,.14), rgba(106,60,255,.12), rgba(0,194,255,.10));
      border-bottom:1px solid rgba(16,24,40,.08);
      display:flex; align-items:center; justify-content:space-between; gap:12px;
    }
    .float-pop .top strong{font-size: 13.5px}
    .close-x{
      width:34px; height:34px; border-radius:14px;
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.72);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
    }
    .float-pop .body{
      padding: 12px;
      display:grid; gap: 10px;
    }
    .qrrow{
      display:flex; gap: 12px; align-items:flex-start;
    }
    .qrrow img{
      width: 78px; height: 78px; object-fit:cover; border-radius: 14px;
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.9);
    }
    .qrrow .info{
      display:flex; flex-direction:column; gap: 6px;
    }
    .qrrow .info span{
      font-size: 12.8px; color: rgba(17,17,17,.72); line-height:1.5;
    }
    .qrrow .info a{
      padding: 8px 10px;
      border-radius: 12px;
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.72);
      font-size: 13px;
      font-weight: 800;
      display:inline-flex; align-items:center; gap:8px;
    }

    .to-top{
      width: 52px; height: 52px;
      border-radius: 18px;
      border:1px solid rgba(16,24,40,.12);
      background: rgba(255,255,255,.78);
      box-shadow: 0 18px 42px rgba(17,24,39,.16);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .18s ease, opacity .18s ease;
    }
    .to-top:hover{transform: translateY(-2px)}
    .to-top[aria-hidden="true"]{opacity:0; pointer-events:none}

    .reveal{
      opacity: 0;
      transform: translateY(10px);
      transition: opacity .55s ease, transform .55s ease;
    }
    .reveal.on{
      opacity: 1;
      transform: translateY(0);
    }

    @media (max-width: 980px){
      .hero-inner{grid-template-columns: 1fr; gap: 12px}
      .hero-right{padding-top: 0}
      .cards-3{grid-template-columns: 1fr}
      .steps{grid-template-columns: 1fr 1fr}
      .split{grid-template-columns: 1fr}
      .accordion{grid-template-columns: 1fr}
      .reviews{grid-template-columns: 1fr}
      .cases{grid-template-columns: 1fr}
      .timeline{grid-template-columns: 1fr}
      .form-grid{grid-template-columns: 1fr}
      .footer-inner{grid-template-columns: 1fr}
      .img-strip{grid-template-columns: 1fr}
      .nav-cta{min-width:auto}
    }

    @media (max-width: 760px){
      nav .nav-links{display:none}
      .nav-cta .btn-ghost{display:none}
      .hamburger{display:inline-flex; align-items:center; justify-content:center}
      .mobile-panel{display:block}
      header{position:sticky}
      .mobile-panel[data-open="false"]{display:none}
      .steps{grid-template-columns: 1fr}
      .data-grid{grid-template-columns: 1fr 1fr}
    }

    @media (prefers-reduced-motion: reduce){
      html{scroll-behavior:auto}
      .reveal{transition:none}
      details summary, .card, .metric, .step, .review, .case-item, .chip, .btn, .float-btn, .to-top{transition:none}
      .float-pop{animation:none}
    }