:root{
      --bg0:#f7f8fb;
      --bg1:#ffffff;
      --ink:#14161a;
      --muted:#5a636f;
      --muted2:#7a838f;
      --line:rgba(20,22,26,.10);
      --line2:rgba(20,22,26,.14);
      --card:#ffffff;
      --brand:#0b62ff;
      --brand2:#00b6a6;
      --brand3:#7c3aed;
      --accent:#ffb020;
      --shadow: 0 18px 50px rgba(10,20,60,.10);
      --shadow2: 0 10px 30px rgba(10,20,60,.08);
      --radius:18px;
      --radius2:14px;
      --radius3:12px;
      --ring: 0 0 0 4px rgba(11,98,255,.18);
      --container: 1120px;
      --pad: 18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
      color:var(--ink);
      background:
        radial-gradient(900px 420px at 12% 0%, rgba(11,98,255,.12), transparent 55%),
        radial-gradient(800px 420px at 90% 10%, rgba(0,182,166,.10), transparent 50%),
        radial-gradient(700px 420px at 65% 55%, rgba(124,58,237,.08), transparent 55%),
        linear-gradient(180deg, #f6f7fb 0%, #fbfcff 30%, #ffffff 100%);
    }
    a{color:inherit; text-decoration:none}
    img{max-width:100%; height:auto; display:block}
    .container{
      width:100%;
      max-width:var(--container);
      margin:0 auto;
      padding:0 var(--pad);
    }

    .topbar{
      position:sticky; top:0; z-index:50;
      backdrop-filter: blur(10px);
      background: rgba(255,255,255,.72);
      border-bottom:1px solid rgba(20,22,26,.08);
    }
    .topbar-inner{
      display:flex; align-items:center; justify-content:space-between;
      gap:14px;
      padding:14px 0;
    }
    .brand{
      display:flex; align-items:center; gap:12px; min-width: 210px;
    }
    .ai-page-logo{
      width:34px; height:34px; border-radius:12px;
      box-shadow: 0 10px 30px rgba(11,98,255,.20);
      background:#fff;
      padding:4px;
      object-fit:contain;
    }
    .brand-title{
      display:flex; flex-direction:column; gap:2px;
      line-height:1.05;
    }
    .brand-title strong{font-size:15px; letter-spacing:.2px}
    .brand-title span{font-size:12px; color:var(--muted)}
    .nav{
      display:flex; align-items:center; gap:10px; flex-wrap:nowrap;
    }
    .nav a.nav-link{
      font-size:13px; color:rgba(20,22,26,.78);
      padding:10px 10px; border-radius:12px;
      border:1px solid transparent;
      transition: background .2s ease, border-color .2s ease, transform .2s ease;
      white-space:nowrap;
    }
    .nav a.nav-link:hover{
      background: rgba(11,98,255,.06);
      border-color: rgba(11,98,255,.18);
      transform: translateY(-1px);
    }
    .nav-right{
      display:flex; align-items:center; gap:10px;
      min-width: 220px;
      justify-content:flex-end;
    }
    .pill{
      display:inline-flex; align-items:center; gap:8px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.7);
      padding:9px 12px;
      border-radius:999px;
      font-size:13px; color:rgba(20,22,26,.78);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .pill:hover{transform: translateY(-1px); box-shadow: 0 12px 30px rgba(10,20,60,.08)}
    .pill .dot{
      width:8px; height:8px; border-radius:50%;
      background: linear-gradient(135deg, var(--brand) 0%, var(--brand2) 100%);
      box-shadow: 0 0 0 4px rgba(11,98,255,.12);
    }
    .btn{
      display:inline-flex; align-items:center; justify-content:center;
      gap:10px;
      border-radius: 14px;
      padding:12px 14px;
      font-weight:650;
      border:1px solid transparent;
      cursor:pointer;
      transition: transform .16s ease, box-shadow .16s ease, background .16s ease, border-color .16s ease;
      user-select:none;
      white-space:nowrap;
    }
    .btn:active{transform: translateY(0px) scale(.99)}
    .btn-primary{
      background: linear-gradient(135deg, var(--brand) 0%, #2dd4ff 70%, var(--brand2) 120%);
      color:#fff;
      box-shadow: 0 18px 40px rgba(11,98,255,.22);
    }
    .btn-primary:hover{transform: translateY(-1px); box-shadow: 0 24px 60px rgba(11,98,255,.25)}
    .btn-ghost{
      background: rgba(255,255,255,.74);
      border-color: rgba(20,22,26,.12);
      color:rgba(20,22,26,.90);
    }
    .btn-ghost:hover{transform: translateY(-1px); box-shadow: 0 16px 40px rgba(10,20,60,.08); border-color: rgba(20,22,26,.18)}
    .btn-soft{
      background: rgba(11,98,255,.07);
      border-color: rgba(11,98,255,.18);
      color: rgba(11,98,255,.98);
    }
    .btn-soft:hover{transform: translateY(-1px); box-shadow: 0 16px 40px rgba(11,98,255,.10)}
    .btn-small{
      padding:10px 12px;
      border-radius:12px;
      font-weight:650;
      font-size:13px;
    }

    .mobile-toggle{
      display:none;
      width:42px; height:42px;
      border-radius:14px;
      border:1px solid rgba(20,22,26,.12);
      background: rgba(255,255,255,.72);
      align-items:center; justify-content:center;
      cursor:pointer;
      transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
    }
    .mobile-toggle:hover{transform: translateY(-1px); box-shadow: 0 14px 34px rgba(10,20,60,.08); border-color: rgba(20,22,26,.18)}
    .burger{
      width:18px; height:12px; position:relative;
    }
    .burger span{
      position:absolute; left:0; right:0; height:2px; border-radius:2px;
      background: rgba(20,22,26,.78);
      transition: transform .2s ease, top .2s ease, opacity .2s 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-drawer{
      display:none;
      border-top:1px solid rgba(20,22,26,.08);
      padding:10px 0 16px;
    }
    .mobile-drawer .links{
      display:flex; flex-direction:column; gap:10px;
    }
    .mobile-drawer a{
      padding:12px 12px;
      border-radius:14px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.68);
      color: rgba(20,22,26,.86);
      font-weight:630;
      transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
    }
    .mobile-drawer a:hover{transform: translateY(-1px); box-shadow: 0 14px 30px rgba(10,20,60,.08); border-color: rgba(11,98,255,.22)}

    .hero{
      padding: 34px 0 18px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.25fr .75fr;
      gap:18px;
      align-items:stretch;
    }
    .hero-card{
      border-radius: calc(var(--radius) + 6px);
      border:1px solid rgba(20,22,26,.10);
      background:
        radial-gradient(900px 420px at 10% 10%, rgba(11,98,255,.18), transparent 55%),
        radial-gradient(700px 340px at 80% 0%, rgba(0,182,166,.14), transparent 50%),
        radial-gradient(700px 340px at 60% 70%, rgba(124,58,237,.10), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.88) 0%, rgba(255,255,255,.66) 100%);
      box-shadow: var(--shadow);
      overflow:hidden;
      position:relative;
      padding:26px;
      min-height: 310px;
    }
    .hero-card:before{
      content:"";
      position:absolute; inset:-2px;
      background:
        linear-gradient(90deg, rgba(11,98,255,.25), rgba(0,182,166,.18), rgba(124,58,237,.16));
      filter: blur(22px);
      opacity:.35;
      pointer-events:none;
    }
    .hero-card > *{position:relative; z-index:1}
    .badge-row{
      display:flex; align-items:center; gap:10px; flex-wrap:wrap;
      margin-bottom:14px;
    }
    .badge{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.65);
      color: rgba(20,22,26,.80);
      font-weight:650;
      font-size:13px;
    }
    .badge svg{opacity:.9}
    .hero h1{
      margin:0;
      font-size: 34px;
      letter-spacing: -0.6px;
      line-height:1.12;
    }
    .hero p{
      margin:12px 0 18px;
      color: rgba(20,22,26,.75);
      font-size:15px;
      line-height:1.8;
      max-width: 62ch;
    }
    .hero-actions{
      display:flex; gap:12px; flex-wrap:wrap;
      align-items:center;
      margin-top: 10px;
    }
    .hero-meta{
      margin-top: 16px;
      display:flex; gap:14px; flex-wrap:wrap;
      align-items:center;
    }
    .meta-item{
      display:flex; gap:10px; align-items:flex-start;
      padding:10px 12px;
      border-radius: 16px;
      background: rgba(255,255,255,.60);
      border:1px solid rgba(20,22,26,.10);
      min-width: 190px;
    }
    .meta-icon{
      width:34px; height:34px;
      border-radius:12px;
      background: linear-gradient(135deg, rgba(11,98,255,.18), rgba(0,182,166,.16));
      display:flex; align-items:center; justify-content:center;
      border:1px solid rgba(11,98,255,.18);
    }
    .meta-item strong{display:block; font-size:13px; margin-top:1px}
    .meta-item span{display:block; font-size:12px; color: var(--muted)}
    .hero-side{
      border-radius: calc(var(--radius) + 6px);
      border:1px solid rgba(20,22,26,.10);
      background: linear-gradient(180deg, rgba(255,255,255,.86) 0%, rgba(255,255,255,.66) 100%);
      box-shadow: var(--shadow2);
      padding:18px;
      display:flex; flex-direction:column; gap:14px;
      min-height: 310px;
    }
    .side-title{
      display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
    }
    .side-title h2{
      margin:0;
      font-size:16px; letter-spacing:-.2px;
    }
    .side-title p{
      margin:6px 0 0;
      font-size:13px; color: var(--muted);
      line-height:1.6;
    }
    .spark{
      width:40px; height:40px; border-radius:14px;
      background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.9), rgba(255,255,255,.2)),
                  linear-gradient(135deg, rgba(255,176,32,.25), rgba(11,98,255,.20));
      border:1px solid rgba(20,22,26,.10);
      display:flex; align-items:center; justify-content:center;
      box-shadow: 0 18px 40px rgba(255,176,32,.12);
    }
    .side-grid{
      display:grid;
      grid-template-columns: 1fr;
      gap:12px;
    }
    .stat{
      padding:14px;
      border-radius: 16px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.70);
      position:relative;
      overflow:hidden;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .stat:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 40px rgba(10,20,60,.10);
      border-color: rgba(11,98,255,.22);
    }
    .stat .k{
      font-size:12px; color: var(--muted2);
      display:flex; align-items:center; gap:8px;
      margin-bottom:8px;
    }
    .stat .k i{
      width:9px; height:9px; border-radius:3px;
      background: linear-gradient(135deg, var(--brand) 0%, var(--brand2) 100%);
      display:inline-block;
      box-shadow: 0 0 0 4px rgba(11,98,255,.12);
    }
    .stat .v{
      font-size:18px; font-weight:800; letter-spacing:-.3px;
    }
    .stat .s{
      margin-top:6px;
      color: rgba(20,22,26,.68);
      font-size:13px;
      line-height:1.6;
    }

    .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: 24px;
      letter-spacing:-.4px;
      line-height:1.2;
    }
    .section-head p{
      margin:0;
      color: var(--muted);
      font-size:14px;
      line-height:1.7;
      max-width: 62ch;
    }

    .grid-3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:14px;
      align-items:stretch;
    }
    .grid-2{
      display:grid;
      grid-template-columns: repeat(2, 1fr);
      gap:14px;
      align-items:stretch;
    }
    .card{
      background: rgba(255,255,255,.78);
      border:1px solid rgba(20,22,26,.10);
      border-radius: var(--radius);
      padding:16px;
      box-shadow: 0 14px 34px rgba(10,20,60,.06);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      position:relative;
      overflow:hidden;
    }
    .card:hover{
      transform: translateY(-3px);
      box-shadow: 0 20px 50px rgba(10,20,60,.10);
      border-color: rgba(11,98,255,.22);
    }
    .card h3{
      margin: 0 0 8px;
      font-size:15px;
      letter-spacing:-.2px;
    }
    .card p{
      margin:0;
      color: rgba(20,22,26,.70);
      font-size:13.5px;
      line-height:1.8;
    }
    .icon-wrap{
      width:42px; height:42px;
      border-radius: 16px;
      display:flex; align-items:center; justify-content:center;
      background: linear-gradient(135deg, rgba(11,98,255,.14), rgba(0,182,166,.12));
      border:1px solid rgba(11,98,255,.18);
      box-shadow: 0 16px 40px rgba(11,98,255,.10);
      margin-bottom:12px;
    }

    .steps{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap:14px;
      align-items:stretch;
    }
    .step{
      padding:16px;
      border-radius: var(--radius);
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.72);
      position:relative;
      overflow:hidden;
    }
    .step .num{
      display:inline-flex;
      align-items:center;
      gap:10px;
      font-weight:900;
      letter-spacing:-.4px;
      color: rgba(11,98,255,.98);
      margin-bottom:10px;
    }
    .step .num b{
      width:30px; height:30px;
      border-radius: 12px;
      background: rgba(11,98,255,.10);
      border:1px solid rgba(11,98,255,.22);
      display:flex; align-items:center; justify-content:center;
      color: rgba(11,98,255,.98);
    }
    .step h3{margin:0 0 6px; font-size:15px}
    .step p{margin:0; color: rgba(20,22,26,.70); font-size:13.5px; line-height:1.8}
    .compare{
      overflow:auto;
      border-radius: var(--radius);
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 14px 34px rgba(10,20,60,.06);
    }
    table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      min-width: 860px;
      font-size:13.5px;
    }
    thead th{
      text-align:left;
      padding:14px 16px;
      background: linear-gradient(180deg, rgba(11,98,255,.10), rgba(11,98,255,.04));
      border-bottom:1px solid rgba(20,22,26,.10);
      font-weight:800;
      color: rgba(20,22,26,.92);
    }
    tbody td{
      padding:14px 16px;
      border-bottom:1px solid rgba(20,22,26,.08);
      vertical-align:top;
      color: rgba(20,22,26,.74);
      line-height:1.7;
    }
    tbody tr:last-child td{border-bottom:none}
    .badge-star{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 12px;
      border-radius: 999px;
      background: rgba(255,176,32,.10);
      border:1px solid rgba(255,176,32,.25);
      color: rgba(20,22,26,.90);
      font-weight:850;
      white-space:nowrap;
    }
    .stars{
      display:inline-flex; align-items:center; gap:2px;
      margin-left:8px;
      transform: translateY(1px);
    }
    .stars svg{fill:#ffb020; filter: drop-shadow(0 8px 14px rgba(255,176,32,.18))}
    .tick{
      display:inline-flex; align-items:center; gap:8px;
      color: rgba(20,22,26,.84);
      font-weight:650;
    }
    .tick i{
      width:18px; height:18px;
      border-radius:8px;
      background: rgba(0,182,166,.12);
      border:1px solid rgba(0,182,166,.22);
      display:inline-flex; align-items:center; justify-content:center;
      color: rgba(0,130,110,.98);
      flex:0 0 auto;
    }

    .form-wrap{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap:14px;
      align-items:stretch;
    }
    .form-card{
      padding:18px;
      border-radius: var(--radius);
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 14px 34px rgba(10,20,60,.06);
    }
    .form-card h3{margin:0 0 6px; font-size:16px}
    .form-card p{margin:0 0 14px; color: var(--muted); font-size:13.5px; line-height:1.8}
    form{
      display:grid; gap:12px;
    }
    .field{
      display:grid; gap:6px;
    }
    label{
      font-size:12.5px;
      color: rgba(20,22,26,.76);
      font-weight:700;
    }
    input, select, textarea{
      width:100%;
      border-radius: 14px;
      border:1px solid rgba(20,22,26,.12);
      background: rgba(255,255,255,.86);
      padding:12px 12px;
      color: rgba(20,22,26,.92);
      outline:none;
      font-size:14px;
      transition: box-shadow .18s ease, border-color .18s ease, transform .18s ease;
    }
    textarea{min-height: 110px; resize: vertical}
    input:focus, select:focus, textarea:focus{
      border-color: rgba(11,98,255,.36);
      box-shadow: var(--ring);
    }
    .form-actions{
      display:flex; gap:12px; flex-wrap:wrap; align-items:center;
      margin-top: 4px;
    }
    .hint{
      font-size:12.5px; color: var(--muted2); line-height:1.6;
    }

    .qa{
      display:grid;
      grid-template-columns: 1fr;
      gap:10px;
    }
    details{
      border-radius: var(--radius2);
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.78);
      padding:12px 14px;
      box-shadow: 0 10px 26px rgba(10,20,60,.05);
      transition: border-color .16s ease, box-shadow .16s ease, transform .16s ease;
    }
    details[open]{
      border-color: rgba(11,98,255,.22);
      box-shadow: 0 18px 40px rgba(11,98,255,.10);
      transform: translateY(-1px);
    }
    summary{
      cursor:pointer;
      list-style:none;
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      font-weight:850; color: rgba(20,22,26,.92);
      font-size:14px;
      padding:4px 0;
    }
    summary::-webkit-details-marker{display:none}
    .summary-right{
      display:flex; align-items:center; gap:10px; flex:0 0 auto;
      color: rgba(20,22,26,.62);
      font-weight:800;
      font-size:13px;
      margin-top:2px;
    }
    .plus{
      width:26px; height:26px;
      border-radius: 12px;
      background: rgba(11,98,255,.08);
      border:1px solid rgba(11,98,255,.18);
      display:flex; align-items:center; justify-content:center;
      transition: transform .18s ease;
    }
    details[open] .plus{transform: rotate(45deg)}
    .answer{
      color: rgba(20,22,26,.72);
      font-size:13.5px;
      line-height:1.85;
      padding-top:10px;
    }

    .review-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:14px;
    }
    blockquote{
      margin:0;
      padding:0;
      color: rgba(20,22,26,.78);
      font-size:13.5px;
      line-height:1.85;
    }
    .review{
      padding:16px;
      border-radius: var(--radius);
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 14px 34px rgba(10,20,60,.06);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .review:hover{transform: translateY(-3px); box-shadow: 0 20px 50px rgba(10,20,60,.10); border-color: rgba(11,98,255,.22)}
    .review-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      margin-bottom:10px;
    }
    .review-role{
      font-weight:900; color: rgba(20,22,26,.92);
      font-size:14px;
    }
    .avatar{
      width:40px; height:40px; border-radius: 16px;
      background: linear-gradient(135deg, rgba(11,98,255,.18), rgba(0,182,166,.14));
      border:1px solid rgba(11,98,255,.18);
      display:flex; align-items:center; justify-content:center;
      color: rgba(11,98,255,.98);
      font-weight:900;
      flex:0 0 auto;
    }
    .review-meta{
      margin-top:12px;
      display:flex; gap:10px; flex-wrap:wrap;
      color: var(--muted2);
      font-size:12.5px;
      font-weight:700;
    }
    .tag{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.6);
    }

    .cards-2col{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
    }

    .list{
      margin:0; padding:0;
      list-style:none;
      display:grid; gap:10px;
    }
    .list li{
      display:flex; gap:10px; align-items:flex-start;
      padding:12px 12px;
      border-radius: 16px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.70);
    }
    .list li i{
      width:22px; height:22px;
      border-radius: 10px;
      background: rgba(11,98,255,.10);
      border:1px solid rgba(11,98,255,.22);
      display:flex; align-items:center; justify-content:center;
      color: rgba(11,98,255,.98);
      flex:0 0 auto;
      margin-top:1px;
    }
    .list li div{flex:1}
    .list li b{display:block; font-size:13.5px; margin-bottom:4px}
    .list li span{display:block; color: rgba(20,22,26,.68); font-size:13px; line-height:1.7}

    .case-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:14px;
    }
    .case{
      border-radius: var(--radius);
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 14px 34px rgba(10,20,60,.06);
      overflow:hidden;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .case:hover{transform: translateY(-3px); box-shadow: 0 20px 50px rgba(10,20,60,.10); border-color: rgba(11,98,255,.22)}
    .case .top{
      padding:16px;
      border-bottom:1px solid rgba(20,22,26,.08);
      background:
        radial-gradient(600px 240px at 10% 0%, rgba(11,98,255,.12), transparent 50%),
        radial-gradient(520px 220px at 92% 20%, rgba(0,182,166,.10), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.75));
    }
    .case .title{
      margin:0 0 6px;
      font-size:15px;
      letter-spacing:-.2px;
      font-weight:900;
    }
    .case .desc{
      margin:0;
      color: rgba(20,22,26,.70);
      font-size:13.5px;
      line-height:1.8;
      min-height: 54px;
    }
    .case .body{
      padding:14px 16px 16px;
      display:grid;
      gap:10px;
    }
    .kv{
      display:flex; gap:10px; flex-wrap:wrap;
    }
    .kv span{
      font-size:12.5px; color: var(--muted2); font-weight:750;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.6);
      padding:8px 10px;
      border-radius:999px;
    }
    .case .cta{
      display:flex; justify-content:space-between; align-items:center; gap:12px;
    }
    .link-arrow{
      display:inline-flex; align-items:center; gap:8px;
      color: rgba(11,98,255,.98);
      font-weight:850;
      font-size:13.5px;
    }
    .link-arrow svg{transition: transform .18s ease}
    .case:hover .link-arrow svg{transform: translateX(2px)}

    .article-grid{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap:14px;
      align-items:start;
    }
    .article-list{
      display:grid; gap:10px;
    }
    .article-item{
      display:flex; gap:12px; align-items:flex-start;
      border-radius: var(--radius);
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 14px 34px rgba(10,20,60,.06);
      padding:14px;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .article-item:hover{transform: translateY(-3px); box-shadow: 0 20px 50px rgba(10,20,60,.10); border-color: rgba(11,98,255,.22)}
    .article-bullet{
      width:40px; height:40px; border-radius:16px;
      background: rgba(11,98,255,.08);
      border:1px solid rgba(11,98,255,.18);
      display:flex; align-items:center; justify-content:center;
      color: rgba(11,98,255,.98);
      font-weight:900;
      flex:0 0 auto;
      margin-top:2px;
    }
    .article-item h3{margin:0 0 6px; font-size:14.5px; letter-spacing:-.2px}
    .article-item p{margin:0; color: rgba(20,22,26,.70); font-size:13.2px; line-height:1.75}
    .article-item a{
      display:inline-flex; margin-top:10px;
      align-items:center; gap:8px;
      color: rgba(11,98,255,.98);
      font-weight:900;
      font-size:13px;
    }
    .side-panel{
      border-radius: var(--radius);
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 14px 34px rgba(10,20,60,.06);
      padding:16px;
      position:sticky;
      top: 88px;
    }
    .side-panel h3{margin:0 0 10px; font-size:16px}
    .timeline{
      display:grid; gap:10px;
    }
    .t-item{
      display:flex; gap:10px; align-items:flex-start;
      padding:12px 12px;
      border-radius: 16px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.65);
    }
    .t-dot{
      width:12px; height:12px; border-radius:4px;
      background: linear-gradient(135deg, var(--brand), var(--brand2));
      box-shadow: 0 0 0 4px rgba(11,98,255,.12);
      margin-top:4px;
      flex:0 0 auto;
    }
    .t-item b{display:block; font-size:13.5px; margin-bottom:4px}
    .t-item span{display:block; color: rgba(20,22,26,.66); font-size:13px; line-height:1.7}

    .tags-cloud{
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .cloud-tag{
      padding:10px 12px;
      border-radius: 999px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.72);
      color: rgba(20,22,26,.76);
      font-weight:800;
      font-size:13px;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .cloud-tag:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 40px rgba(10,20,60,.08);
      border-color: rgba(11,98,255,.22);
    }

    .footer{
      padding: 18px 0 24px;
      border-top:1px solid rgba(20,22,26,.08);
      background: linear-gradient(180deg, rgba(255,255,255,.55), rgba(255,255,255,.86));
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap:14px;
      align-items:start;
    }
    .footer-card{
      border-radius: var(--radius);
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.78);
      padding:16px;
      box-shadow: 0 14px 34px rgba(10,20,60,.06);
    }
    .footer-card h3{margin:0 0 10px; font-size:16px}
    .footer-links{
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .footer-links a{
      border-radius:999px;
      padding:10px 12px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.65);
      font-size:13px;
      color: rgba(20,22,26,.78);
      font-weight:850;
      transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
      white-space:nowrap;
    }
    .footer-links a:hover{
      transform: translateY(-2px);
      border-color: rgba(11,98,255,.22);
      box-shadow: 0 18px 40px rgba(10,20,60,.08);
    }
    .copyright{
      margin-top:12px;
      color: rgba(20,22,26,.64);
      font-size:12.5px;
      line-height:1.7;
      display:flex; flex-wrap:wrap; gap:10px; align-items:center;
    }
    .sys-row{
      display:flex; gap:10px; flex-wrap:wrap; align-items:center;
    }
    .qr-box{
      display:flex; gap:14px; align-items:center;
    }
    .qr-img{
      width:86px; height:86px;
      border-radius: 18px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.8);
      padding:8px;
      box-shadow: 0 18px 40px rgba(10,20,60,.08);
    }
    .footer-meta{
      color: rgba(20,22,26,.74);
      font-size:13px;
      line-height:1.75;
    }
    .footer-meta a{
      color: rgba(11,98,255,.98);
      font-weight:900;
    }

    .float-cs{
      position: fixed;
      right: 16px;
      bottom: 16px;
      z-index: 80;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-end;
    }
    .float-card{
      display:flex; flex-direction:column; gap:10px;
      padding:12px;
      border-radius: 18px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 20px 60px rgba(10,20,60,.15);
      backdrop-filter: blur(10px);
      max-width: 220px;
    }
    .float-row{
      display:flex; gap:10px; align-items:center;
    }
    .float-row strong{font-size:13.5px}
    .float-row span{display:block; color: var(--muted); font-size:12.5px; margin-top:2px; line-height:1.4}
    .float-cta{
      display:flex; gap:10px; align-items:center; justify-content:space-between;
    }
    .float-mini{
      display:inline-flex; align-items:center; justify-content:center;
      width:42px; height:42px;
      border-radius: 16px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.70);
      transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
      cursor:pointer;
    }
    .float-mini:hover{transform: translateY(-2px); box-shadow: 0 18px 40px rgba(10,20,60,.10); border-color: rgba(11,98,255,.22)}
    .float-mini svg{opacity:.9}
    .float-qr{
      width: 72px; height: 72px; border-radius: 16px;
      border:1px solid rgba(20,22,26,.10);
      background:#fff;
      padding:6px;
    }
    .float-toggle{
      width:56px; height:56px;
      border-radius: 22px;
      border:1px solid rgba(11,98,255,.22);
      background: linear-gradient(135deg, rgba(11,98,255,.14), rgba(0,182,166,.12));
      box-shadow: 0 18px 50px rgba(11,98,255,.18);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .16s ease, box-shadow .16s ease;
    }
    .float-toggle:hover{transform: translateY(-2px); box-shadow: 0 22px 65px rgba(11,98,255,.22)}
    .to-top{
      position:fixed;
      left: 16px;
      bottom: 16px;
      z-index: 80;
      width: 46px; height: 46px;
      border-radius: 18px;
      border:1px solid rgba(20,22,26,.12);
      background: rgba(255,255,255,.82);
      box-shadow: 0 18px 50px rgba(10,20,60,.12);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .16s ease, opacity .2s ease;
      opacity:0;
      pointer-events:none;
    }
    .to-top.show{
      opacity:1; pointer-events:auto;
    }
    .to-top:hover{transform: translateY(-2px)}
    .fade-up{
      opacity:0; transform: translateY(10px);
      transition: opacity .6s ease, transform .6s ease;
    }
    .fade-up.in{
      opacity:1; transform: translateY(0);
    }

    .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;
    }

    .anchor-gap{scroll-margin-top: 92px;}

    @media (max-width: 980px){
      .nav{display:none}
      .mobile-toggle{display:flex}
      .mobile-drawer{display:block}
      .hero-grid{grid-template-columns: 1fr; }
      .hero-card, .hero-side{min-height:auto}
      .steps{grid-template-columns: repeat(2, 1fr)}
      .grid-3{grid-template-columns: repeat(2, 1fr)}
      .grid-2{grid-template-columns: 1fr}
      .review-grid{grid-template-columns: 1fr}
      .case-grid{grid-template-columns: 1fr}
      .article-grid{grid-template-columns: 1fr}
      .side-panel{position:relative; top:auto}
      .form-wrap{grid-template-columns: 1fr}
      .footer-grid{grid-template-columns: 1fr}
      .float-card{display:none}
    }