:root{
      --bg0:#fbfaf7;
      --bg1:#f4f6ff;
      --card:#ffffff;
      --text:#1f2937;
      --muted:#5b6472;
      --muted2:#7b8596;
      --line:rgba(31,41,55,.10);
      --line2:rgba(31,41,55,.14);
      --shadow:0 18px 40px rgba(20,30,60,.10);
      --shadow2:0 10px 24px rgba(20,30,60,.10);
      --shadow3:0 6px 16px rgba(20,30,60,.08);
      --radius:18px;
      --radius2:14px;

      --brand1:#2563eb;
      --brand2:#7c3aed;
      --brand3:#06b6d4;
      --brand4:#f97316;

      --btn:#0f172a;
      --btnText:#ffffff;
      --link:#1d4ed8;

      --focus:rgba(37,99,235,.22);

      --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", sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 600px at 20% 0%, rgba(124,58,237,.10), transparent 55%),
        radial-gradient(900px 500px at 85% 10%, rgba(6,182,212,.10), transparent 50%),
        linear-gradient(180deg, var(--bg0), #ffffff 38%, var(--bg1) 110%);
      min-height:100vh;
    }

    a{color:inherit}
    .container{
      width:100%;
      max-width:var(--container);
      margin:0 auto;
      padding:0 20px;
    }

    .topbar{
      position:sticky; top:0; z-index:60;
      backdrop-filter:saturate(140%) blur(10px);
      background:rgba(251,250,247,.72);
      border-bottom:1px solid rgba(31,41,55,.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:220px;
    }
    .ai-page-logo{
      width:42px; height:42px; object-fit:contain;
      border-radius:10px;
      background:linear-gradient(135deg, rgba(37,99,235,.12), rgba(124,58,237,.12));
      padding:6px;
      box-shadow:0 10px 26px rgba(37,99,235,.10);
    }
    .brand-text{
      display:flex; flex-direction:column; line-height:1.1;
    }
    .brand-name{
      font-weight:850; letter-spacing:.2px;
      font-size:14px;
    }
    .brand-sub{
      font-size:12px; color:var(--muted2);
      margin-top:4px;
      white-space:nowrap;
    }

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

    .nav a{
      text-decoration:none;
      font-size:13px;
      color:var(--muted);
      padding:10px 10px;
      border-radius:999px;
      border:1px solid transparent;
      transition:transform .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
      user-select:none;
    }
    .nav a:hover{
      background:rgba(37,99,235,.06);
      border-color:rgba(37,99,235,.16);
      color:#1f2a44;
      transform:translateY(-1px);
    }

    .nav-right{
      display:flex; align-items:center; gap:10px;
    }

    .btn{
      display:inline-flex; align-items:center; justify-content:center;
      gap:10px;
      border-radius:12px;
      padding:12px 14px;
      border:1px solid rgba(31,41,55,.12);
      background:#fff;
      color:var(--text);
      text-decoration:none;
      font-weight:700;
      font-size:13px;
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease;
      box-shadow:0 8px 18px rgba(20,30,60,.06);
      user-select:none;
      white-space:nowrap;
    }
    .btn:focus{outline:none; box-shadow:0 0 0 4px var(--focus), 0 10px 22px rgba(20,30,60,.08)}
    .btn:hover{transform:translateY(-1px); box-shadow:0 14px 28px rgba(20,30,60,.10)}
    .btn-primary{
      border-color:rgba(37,99,235,.20);
      background:linear-gradient(135deg, rgba(37,99,235,.95), rgba(124,58,237,.92));
      color:#fff;
      box-shadow:0 18px 40px rgba(37,99,235,.22);
    }
    .btn-primary:hover{box-shadow:0 24px 56px rgba(37,99,235,.26)}
    .btn-ghost{
      background:rgba(255,255,255,.7);
    }

    .mobile-toggle{
      display:none;
      border:1px solid rgba(31,41,55,.14);
      background:#fff;
      padding:10px 12px;
      border-radius:12px;
      box-shadow:0 8px 18px rgba(20,30,60,.06);
      cursor:pointer;
      font-weight:800;
      color:var(--text);
    }

    .mobile-panel{
      display:none;
      padding:10px 0 16px;
      border-top:1px solid rgba(31,41,55,.08);
    }
    .mobile-panel a{
      display:flex; align-items:center; justify-content:space-between;
      padding:12px 12px;
      border:1px solid rgba(31,41,55,.10);
      background:rgba(255,255,255,.72);
      border-radius:14px;
      text-decoration:none;
      color:var(--text);
      margin-top:10px;
      transition:transform .18s ease, box-shadow .18s ease;
      box-shadow:0 10px 22px rgba(20,30,60,.05);
    }
    .mobile-panel a:hover{transform:translateY(-1px); box-shadow:0 16px 30px rgba(20,30,60,.09)}

    header.hero{
      padding:28px 0 10px;
    }

    .hero-shell{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap:18px;
      align-items:stretch;
      padding:18px 0 6px;
    }

    .hero-left{
      border-radius:var(--radius);
      padding:26px 22px;
      background:
        radial-gradient(900px 380px at 20% 0%, rgba(37,99,235,.22), transparent 50%),
        radial-gradient(800px 420px at 95% 10%, rgba(124,58,237,.20), transparent 55%),
        radial-gradient(700px 360px at 75% 95%, rgba(6,182,212,.16), transparent 50%),
        linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.70));
      border:1px solid rgba(31,41,55,.10);
      box-shadow: var(--shadow);
      position:relative;
      overflow:hidden;
    }

    .hero-left:before{
      content:"";
      position:absolute; inset:-2px;
      background:
        linear-gradient(115deg, rgba(37,99,235,.14), transparent 35%),
        linear-gradient(65deg, rgba(124,58,237,.12), transparent 45%),
        linear-gradient(175deg, rgba(6,182,212,.12), transparent 42%);
      pointer-events:none;
      opacity:.9;
    }
    .hero-left > *{position:relative; z-index:1}

    .kicker{
      display:inline-flex; align-items:center; gap:10px;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid rgba(31,41,55,.10);
      background:rgba(255,255,255,.65);
      color:var(--muted);
      font-size:13px;
      font-weight:700;
      margin-bottom:14px;
    }
    .k-dot{
      width:10px; height:10px; border-radius:50%;
      background:linear-gradient(135deg, var(--brand3), var(--brand2));
      box-shadow:0 0 0 4px rgba(6,182,212,.14);
    }

    h1{
      margin:0;
      font-size:34px;
      line-height:1.18;
      letter-spacing:-.6px;
    }
    .hero-desc{
      margin-top:12px;
      color:var(--muted);
      font-size:15px;
      line-height:1.8;
      max-width:62ch;
    }

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

    .micro-metrics{
      display:grid;
      grid-template-columns: repeat(3, minmax(0,1fr));
      gap:10px;
      margin-top:18px;
    }
    .metric{
      background:rgba(255,255,255,.62);
      border:1px solid rgba(31,41,55,.10);
      border-radius:16px;
      padding:12px 12px;
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .metric:hover{
      transform:translateY(-2px);
      box-shadow:0 16px 30px rgba(20,30,60,.10);
      border-color:rgba(37,99,235,.22);
    }
    .metric .n{
      font-weight:900;
      font-size:16px;
      letter-spacing:-.2px;
    }
    .metric .t{
      margin-top:6px;
      font-size:12px;
      color:var(--muted2);
      line-height:1.35;
    }

    .hero-right{
      border-radius:var(--radius);
      padding:18px;
      background:linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.66));
      border:1px solid rgba(31,41,55,.10);
      box-shadow: var(--shadow2);
      overflow:hidden;
      position:relative;
    }
    .hero-right:after{
      content:"";
      position:absolute; inset:-140px -140px auto auto;
      width:320px; height:320px;
      background:radial-gradient(circle at 30% 30%, rgba(249,115,22,.26), transparent 60%),
                 radial-gradient(circle at 70% 70%, rgba(37,99,235,.18), transparent 60%);
      transform:rotate(18deg);
      pointer-events:none;
    }
    .hero-right > *{position:relative; z-index:1}

    .panel-title{
      display:flex; align-items:center; justify-content:space-between;
      gap:12px;
      margin-bottom:14px;
    }
    .panel-title h2{
      margin:0;
      font-size:16px;
      letter-spacing:-.2px;
    }
    .badge{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(31,41,55,.12);
      background:rgba(255,255,255,.72);
      color:var(--muted);
      font-weight:800;
      font-size:12px;
      white-space:nowrap;
    }
    .spark{
      width:14px; height:14px;
      border-radius:4px;
      background:linear-gradient(135deg, rgba(124,58,237,.95), rgba(6,182,212,.88));
      box-shadow:0 0 0 4px rgba(124,58,237,.14);
    }

    .quick-grid{
      display:grid; grid-template-columns:1fr 1fr;
      gap:10px;
    }
    .quick{
      border:1px solid rgba(31,41,55,.10);
      background:rgba(255,255,255,.66);
      border-radius:16px;
      padding:12px 12px;
      min-height:92px;
      display:flex; flex-direction:column; justify-content:space-between;
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .quick:hover{
      transform:translateY(-2px);
      box-shadow:0 16px 28px rgba(20,30,60,.10);
      border-color:rgba(124,58,237,.22);
    }
    .quick .icon{
      width:34px; height:34px; border-radius:12px;
      display:grid; place-items:center;
      background:linear-gradient(135deg, rgba(37,99,235,.14), rgba(124,58,237,.12));
      border:1px solid rgba(37,99,235,.18);
    }
    .quick .name{font-weight:900; font-size:13px}
    .quick .sub{color:var(--muted2); font-size:12px; line-height:1.4; margin-top:6px}

    .right-cta{
      margin-top:14px;
      border-radius:16px;
      padding:14px 14px;
      border:1px solid rgba(31,41,55,.10);
      background:linear-gradient(135deg, rgba(37,99,235,.10), rgba(6,182,212,.08));
    }
    .right-cta p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
    }
    .right-cta .row{
      display:flex; gap:10px; flex-wrap:wrap; margin-top:12px;
      align-items:center;
    }
    .pill{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(31,41,55,.12);
      background:rgba(255,255,255,.72);
      font-weight:800;
      font-size:12px;
      color:var(--muted);
    }
    .pill b{color:#1f2a44}

    main{padding:14px 0 34px}

    section{
      padding:34px 0;
    }
    .section-head{
      display:flex; align-items:flex-end; justify-content:space-between; gap:14px;
      margin-bottom:18px;
    }
    .section-head h2{
      margin:0;
      font-size:22px;
      letter-spacing:-.4px;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.7;
      max-width:58ch;
    }

    .tagline{
      display:flex; align-items:center; gap:10px; flex-wrap:wrap;
      margin-top:10px;
    }
    .tag{
      font-size:12px;
      padding:9px 10px;
      border-radius:999px;
      border:1px solid rgba(31,41,55,.12);
      background:rgba(255,255,255,.70);
      color:var(--muted);
      font-weight:800;
      user-select:none;
      transition:transform .18s ease, border-color .18s ease, background .18s ease;
    }
    .tag:hover{transform:translateY(-1px); border-color:rgba(37,99,235,.22); background:rgba(255,255,255,.92)}

    .cards-3{
      display:grid; grid-template-columns: repeat(3, minmax(0,1fr));
      gap:14px;
    }
    .card{
      background:rgba(255,255,255,.72);
      border:1px solid rgba(31,41,55,.10);
      border-radius:var(--radius);
      padding:16px;
      box-shadow:0 10px 22px rgba(20,30,60,.06);
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .card:hover{
      transform:translateY(-2px);
      box-shadow:0 18px 38px rgba(20,30,60,.10);
      border-color:rgba(37,99,235,.18);
    }
    .card h3{
      margin:0;
      font-size:15px;
      letter-spacing:-.2px;
    }
    .card p{
      margin:10px 0 0;
      color:var(--muted);
      font-size:13px;
      line-height:1.75;
    }

    .split{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
      align-items:start;
    }

    .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;
      padding:12px 12px;
      border-radius:16px;
      border:1px solid rgba(31,41,55,.10);
      background:rgba(255,255,255,.66);
    }
    .check{
      width:26px; height:26px;
      border-radius:10px;
      display:grid; place-items:center;
      background:linear-gradient(135deg, rgba(37,99,235,.16), rgba(124,58,237,.12));
      border:1px solid rgba(37,99,235,.18);
      flex:0 0 auto;
    }
    .li b{font-size:13px}
    .li span{
      display:block;
      margin-top:6px;
      color:var(--muted);
      font-size:12.5px;
      line-height:1.6;
    }

    .steps{
      display:grid;
      grid-template-columns: repeat(4, minmax(0,1fr));
      gap:12px;
    }
    .step{
      padding:16px;
      border-radius:var(--radius);
      border:1px solid rgba(31,41,55,.10);
      background:rgba(255,255,255,.72);
      box-shadow:0 10px 22px rgba(20,30,60,.06);
      position:relative;
      overflow:hidden;
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      min-height:170px;
    }
    .step:before{
      content:"";
      position:absolute; inset:-2px;
      background:linear-gradient(135deg, rgba(37,99,235,.12), transparent 48%),
                 linear-gradient(225deg, rgba(6,182,212,.10), transparent 45%);
      opacity:.9;
      pointer-events:none;
    }
    .step > *{position:relative; z-index:1}
    .num{
      width:34px; height:34px;
      border-radius:14px;
      display:grid; place-items:center;
      font-weight:950;
      color:#0b2545;
      background:linear-gradient(135deg, rgba(37,99,235,.18), rgba(124,58,237,.12));
      border:1px solid rgba(37,99,235,.18);
      box-shadow:0 10px 22px rgba(37,99,235,.12);
      margin-bottom:10px;
    }
    .step h3{margin:0; font-size:14px; letter-spacing:-.15px}
    .step p{margin:10px 0 0; color:var(--muted); font-size:12.8px; line-height:1.7}
    .step:hover{transform:translateY(-2px); box-shadow:0 18px 38px rgba(20,30,60,.10); border-color:rgba(124,58,237,.20)}

    .compare-wrap{
      border-radius:var(--radius);
      border:1px solid rgba(31,41,55,.10);
      background:rgba(255,255,255,.72);
      box-shadow:0 10px 22px rgba(20,30,60,.06);
      overflow:hidden;
    }
    .compare-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      padding:16px;
      border-bottom:1px solid rgba(31,41,55,.08);
      background:
        radial-gradient(700px 260px at 0% 0%, rgba(249,115,22,.10), transparent 55%),
        radial-gradient(700px 260px at 100% 0%, rgba(37,99,235,.14), transparent 55%),
        rgba(255,255,255,.72);
    }
    .rating{
      display:flex; flex-direction:column; gap:8px;
      min-width:240px;
    }
    .stars{
      display:flex; gap:6px; align-items:center;
      color:#0f172a;
      font-weight:900;
    }
    .star{
      width:16px; height:16px;
      background:conic-gradient(from 220deg, #f59e0b, #f97316, #f43f5e);
      clip-path:polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 72%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
      box-shadow:0 10px 22px rgba(249,115,22,.18);
    }
    table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      font-size:13px;
    }
    th, td{
      padding:14px 12px;
      border-bottom:1px solid rgba(31,41,55,.08);
      vertical-align:top;
      text-align:left;
    }
    th{
      background:rgba(15,23,42,.04);
      color:#0f172a;
      font-weight:900;
      border-bottom:1px solid rgba(31,41,55,.10);
      position:sticky;
      top:0;
      z-index:2;
    }
    .nowrap{white-space:nowrap}
    .score-pill{
      display:inline-flex; align-items:center; gap:10px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(31,41,55,.12);
      background:rgba(255,255,255,.75);
      font-weight:900;
    }
    .score-9{
      background:linear-gradient(135deg, rgba(34,197,94,.16), rgba(6,182,212,.12));
      border-color:rgba(34,197,94,.26);
    }
    .muted-cell{color:var(--muted); font-weight:700}
    .yes{
      display:inline-flex; align-items:center; gap:8px;
      font-weight:900;
    }
    .tick{
      width:18px; height:18px;
      border-radius:8px;
      background:linear-gradient(135deg, rgba(34,197,94,.18), rgba(6,182,212,.10));
      border:1px solid rgba(34,197,94,.25);
      display:grid; place-items:center;
      color:#0b3b22;
      font-size:12px;
    }

    .hscroll{
      overflow:auto;
      -webkit-overflow-scrolling:touch;
    }

    .timeline{
      display:grid;
      grid-template-columns: 1fr;
      gap:12px;
    }
    .tl-item{
      display:flex; gap:12px; align-items:flex-start;
      padding:14px;
      border-radius:var(--radius);
      border:1px solid rgba(31,41,55,.10);
      background:rgba(255,255,255,.70);
      box-shadow:0 10px 22px rgba(20,30,60,.05);
    }
    .tl-dot{
      width:14px; height:14px; border-radius:50%;
      margin-top:6px;
      background:linear-gradient(135deg, rgba(37,99,235,.95), rgba(124,58,237,.86));
      box-shadow:0 0 0 5px rgba(37,99,235,.14);
      flex:0 0 auto;
    }
    .tl-item h3{margin:0; font-size:14px}
    .tl-item p{margin:8px 0 0; color:var(--muted); font-size:12.8px; line-height:1.7}

    .case-grid{
      display:grid; grid-template-columns: repeat(3, minmax(0,1fr));
      gap:14px;
    }
    .thumb{
      border-radius:16px;
      border:1px solid rgba(31,41,55,.10);
      background:rgba(255,255,255,.66);
      overflow:hidden;
      box-shadow:0 10px 22px rgba(20,30,60,.06);
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .thumb:hover{transform:translateY(-2px); box-shadow:0 18px 38px rgba(20,30,60,.10); border-color:rgba(37,99,235,.18)}
    .thumb .img-wrap{
      padding:10px 10px 0;
    }
    .thumb img{
      width:100%; height:auto; display:block;
      border-radius:14px;
      object-fit:cover;
    }
    .thumb .body{
      padding:12px 14px 14px;
    }
    .thumb h3{margin:0; font-size:14px}
    .thumb p{margin:8px 0 0; color:var(--muted); font-size:12.8px; line-height:1.7}
    .thumb .meta{
      margin-top:12px;
      display:flex; gap:10px; flex-wrap:wrap;
    }
    .chip{
      font-size:12px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(31,41,55,.10);
      background:rgba(255,255,255,.72);
      color:var(--muted);
      font-weight:900;
      user-select:none;
    }

    .article-grid{
      display:grid; grid-template-columns: 1.1fr .9fr;
      gap:14px;
      align-items:start;
    }
    .article-list{
      display:flex; flex-direction:column; gap:10px;
    }
    .article-item{
      display:flex; justify-content:space-between; align-items:flex-start; gap:12px;
      padding:14px 14px;
      border-radius:var(--radius);
      border:1px solid rgba(31,41,55,.10);
      background:rgba(255,255,255,.72);
      box-shadow:0 10px 22px rgba(20,30,60,.05);
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .article-item:hover{transform:translateY(-2px); box-shadow:0 18px 38px rgba(20,30,60,.10); border-color:rgba(124,58,237,.18)}
    .article-item a{
      text-decoration:none;
      display:block;
      font-weight:950;
      font-size:14px;
      letter-spacing:-.2px;
    }
    .article-item .small{
      color:var(--muted);
      font-size:12.5px;
      margin-top:6px;
      line-height:1.55;
    }
    .arrow{
      width:34px; height:34px;
      border-radius:14px;
      display:grid; place-items:center;
      background:linear-gradient(135deg, rgba(37,99,235,.14), rgba(124,58,237,.12));
      border:1px solid rgba(37,99,235,.18);
      flex:0 0 auto;
    }

    .side-box{
      padding:16px;
      border-radius:var(--radius);
      border:1px solid rgba(31,41,55,.10);
      background:rgba(255,255,255,.72);
      box-shadow:0 10px 22px rgba(20,30,60,.05);
    }
    .side-box h3{margin:0; font-size:15px}
    .side-box p{margin:10px 0 0; color:var(--muted); font-size:13px; line-height:1.75}
    .model-cloud{
      margin-top:12px;
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .model{
      padding:10px 12px;
      border-radius:999px;
      border:1px solid rgba(31,41,55,.10);
      background:rgba(255,255,255,.75);
      color:var(--muted);
      font-weight:900;
      font-size:12px;
      user-select:none;
      transition:transform .18s ease, border-color .18s ease, background .18s ease;
    }
    .model:hover{transform:translateY(-2px); border-color:rgba(37,99,235,.22); background:rgba(255,255,255,.95)}

    .form{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      margin-top:14px;
    }
    .form .full{grid-column:1 / -1}
    label{
      display:block;
      font-weight:900;
      font-size:12.5px;
      color:#0f172a;
      margin-bottom:8px;
    }
    input, select, textarea{
      width:100%;
      border-radius:14px;
      border:1px solid rgba(31,41,55,.12);
      padding:12px 12px;
      background:rgba(255,255,255,.78);
      color:var(--text);
      font-size:13px;
      outline:none;
      transition:box-shadow .18s ease, border-color .18s ease, background .18s ease;
    }
    textarea{min-height:104px; resize:vertical}
    input:focus, select:focus, textarea:focus{
      border-color:rgba(37,99,235,.34);
      box-shadow:0 0 0 4px var(--focus);
      background:rgba(255,255,255,.95);
    }
    .form-actions{
      display:flex; gap:12px; flex-wrap:wrap; align-items:center;
      margin-top:12px;
      justify-content:flex-start;
    }
    .form-help{
      color:var(--muted);
      font-size:12.5px;
      line-height:1.6;
      margin:0;
    }

    .reviews{
      display:grid;
      grid-template-columns: repeat(3, minmax(0,1fr));
      gap:14px;
    }
    .review{
      padding:16px;
      border-radius:var(--radius);
      border:1px solid rgba(31,41,55,.10);
      background:rgba(255,255,255,.72);
      box-shadow:0 10px 22px rgba(20,30,60,.05);
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      min-height:196px;
      display:flex; flex-direction:column; justify-content:space-between;
      overflow:hidden;
      position:relative;
    }
    .review:before{
      content:"";
      position:absolute; inset:-2px;
      background:radial-gradient(420px 220px at 20% 0%, rgba(37,99,235,.14), transparent 55%);
      opacity:.9;
      pointer-events:none;
    }
    .review > *{position:relative; z-index:1}
    .review:hover{transform:translateY(-2px); box-shadow:0 18px 38px rgba(20,30,60,.10); border-color:rgba(37,99,235,.18)}
    .review .who{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
    }
    .avatar{
      width:38px; height:38px; border-radius:16px;
      background:linear-gradient(135deg, rgba(37,99,235,.18), rgba(124,58,237,.12));
      border:1px solid rgba(37,99,235,.18);
      display:grid; place-items:center;
      font-weight:950;
      color:#0f172a;
      box-shadow:0 12px 22px rgba(37,99,235,.10);
      flex:0 0 auto;
    }
    .review h3{margin:0; font-size:14px}
    .role{color:var(--muted2); font-size:12.5px; margin-top:6px; font-weight:800}
    .review p{
      margin:12px 0 0;
      color:var(--muted);
      font-size:13px;
      line-height:1.75;
    }

    details{
      border-radius:var(--radius);
      border:1px solid rgba(31,41,55,.10);
      background:rgba(255,255,255,.72);
      box-shadow:0 10px 22px rgba(20,30,60,.05);
      padding:0;
      overflow:hidden;
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    details[open]{border-color:rgba(37,99,235,.22); box-shadow:0 18px 38px rgba(20,30,60,.10)}
    summary{
      cursor:pointer;
      padding:14px 14px;
      list-style:none;
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      font-weight:950;
      font-size:14px;
    }
    summary::-webkit-details-marker{display:none}
    .sum-left{display:flex; gap:12px; align-items:flex-start}
    .qmark{
      width:34px; height:34px; border-radius:14px;
      background:linear-gradient(135deg, rgba(37,99,235,.14), rgba(6,182212,.10));
      border:1px solid rgba(37,99,235,.18);
      display:grid; place-items:center;
      font-size:14px;
      flex:0 0 auto;
    }
    .chev{
      width:30px; height:30px; border-radius:12px;
      border:1px solid rgba(31,41,55,.12);
      background:rgba(255,255,255,.75);
      display:grid; place-items:center;
      transition:transform .20s ease;
      flex:0 0 auto;
      margin-top:2px;
    }
    details[open] .chev{transform:rotate(180deg)}
    .ans{
      padding:0 14px 14px 14px;
      color:var(--muted);
      font-size:13px;
      line-height:1.8;
    }

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

    .tag-cloud{
      display:flex; flex-wrap:wrap; gap:10px;
    }

    .footer{
      margin-top:10px;
      background:linear-gradient(180deg, rgba(15,23,42,.03), rgba(15,23,42,.02));
      border-top:1px solid rgba(31,41,55,.08);
      padding:22px 0;
    }
    .footer-inner{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap:16px;
      align-items:start;
    }
    .footer-left p{
      margin:10px 0 0;
      color:var(--muted);
      font-size:13px;
      line-height:1.8;
    }
    .footer-links{
      display:flex; flex-direction:column; gap:10px;
      align-items:flex-start;
    }
    .footer-links a{
      text-decoration:none;
      color:var(--link);
      font-weight:900;
      font-size:13px;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(37,99,235,.18);
      background:rgba(255,255,255,.72);
      transition:transform .18s ease, box-shadow .18s ease;
      box-shadow:0 10px 22px rgba(20,30,60,.05);
      white-space:nowrap;
    }
    .footer-links a:hover{transform:translateY(-2px); box-shadow:0 18px 38px rgba(20,30,60,.10)}
    .bottom-row{
      margin-top:16px;
      display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
      border-top:1px dashed rgba(31,41,55,.14);
      padding-top:14px;
      color:var(--muted2);
      font-size:12.5px;
      font-weight:800;
    }

    .float-cs{
      position:fixed; right:16px; bottom:18px;
      z-index:80;
      display:flex; flex-direction:column; gap:10px;
      align-items:flex-end;
      pointer-events:none;
    }
    .float-cs .btn{
      pointer-events:auto;
    }
    .qr{
      width:110px;
      border-radius:16px;
      border:1px solid rgba(31,41,55,.12);
      background:rgba(255,255,255,.85);
      box-shadow:0 18px 44px rgba(20,30,60,.18);
      overflow:hidden;
      display:none;
    }
    .qr .qr-h{
      padding:10px 10px 0;
      color:var(--muted);
      font-weight:900;
      font-size:12px;
      line-height:1.5;
    }
    .qr img{
      width:100%;
      height:auto;
      display:block;
      margin-top:10px;
    }
    .float-cs .toggle-qr{
      background:linear-gradient(135deg, rgba(15,23,42,.96), rgba(37,99,235,.86));
      color:#fff;
      border-color:rgba(15,23,42,.20);
      box-shadow:0 22px 60px rgba(37,99,235,.26);
    }

    .fade-in{
      opacity:0;
      transform:translateY(14px);
      transition:opacity .6s ease, transform .6s ease;
    }
    .fade-in.show{
      opacity:1;
      transform:translateY(0);
    }

    .top-anchors{
      display:flex; gap:10px; flex-wrap:wrap;
      margin-top:10px;
    }
    .mini-link{
      text-decoration:none;
      font-weight:900;
      font-size:12px;
      padding:10px 12px;
      border-radius:999px;
      border:1px solid rgba(31,41,55,.12);
      background:rgba(255,255,255,.72);
      color:var(--muted);
      transition:transform .18s ease, border-color .18s ease, background .18s ease;
      user-select:none;
    }
    .mini-link:hover{
      transform:translateY(-2px);
      border-color:rgba(124,58,237,.22);
      background:rgba(255,255,255,.95);
    }

    .skip{
      position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden;
    }
    .skip:focus{
      left:16px; top:10px; width:auto; height:auto;
      background:#fff;
      border:1px solid rgba(31,41,55,.14);
      padding:10px 12px;
      border-radius:12px;
      z-index:999;
    }

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

    @media (max-width: 980px){
      .hero-shell{grid-template-columns:1fr; }
      .cards-3{grid-template-columns:1fr}
      .steps{grid-template-columns:1fr 1fr}
      .case-grid{grid-template-columns:1fr}
      .article-grid{grid-template-columns:1fr}
      .reviews{grid-template-columns:1fr}
      .faq-grid{grid-template-columns:1fr}
      .footer-inner{grid-template-columns:1fr}
      .micro-metrics{grid-template-columns:1fr}
      .compare-top{flex-direction:column}
      .rating{min-width:auto}
    }
    @media (max-width: 860px){
      .nav{display:none}
      .mobile-toggle{display:inline-flex}
      .mobile-panel{display:block}
      .mobile-open{display:block}
    }
    @media (prefers-reduced-motion: reduce){
      html{scroll-behavior:auto}
      .fade-in{transition:none}
      *{transition:none !important; animation:none !important}
    }