:root{
      --bg0:#ffffff;
      --bg1:#fbf7ff;
      --bg2:#f4f7ff;
      --text:#16181d;
      --muted:#5b6472;
      --subtle:#7b8596;
      --line:#e7e9f0;

      --brand:#5b2cff;
      --accent:#ff2a6d;
      --accent2:#ff7a00;
      --teal:#00b3a6;

      --card:#ffffff;
      --card2:#ffffffcc;

      --shadow: 0 12px 30px rgba(18,22,33,.08);
      --shadow2: 0 10px 24px rgba(18,22,33,.10);

      --radius-xl:24px;
      --radius-lg:18px;
      --radius-md:14px;
      --radius-sm:12px;

      --max:1160px;
      --pad:18px;
      --focus: 0 0 0 4px rgba(91,44,255,.16);
    }
    *{ box-sizing:border-box; }
    html,body{ height:100%; }
    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(--text);
      background:
        radial-gradient(900px 520px at 10% -10%, rgba(255,42,109,.12), transparent 55%),
        radial-gradient(860px 520px at 90% 0%, rgba(91,44,255,.12), transparent 52%),
        radial-gradient(760px 480px at 70% 95%, rgba(0,179,166,.10), transparent 55%),
        linear-gradient(180deg, var(--bg1), var(--bg0) 40%, #fff 70%);
    }

    a{ color:inherit; text-decoration:none; }
    .container{
      max-width:var(--max);
      margin:0 auto;
      padding:0 var(--pad);
    }

    .skip-link{
      position:absolute; left:-999px; top:auto; width:1px; height:1px; overflow:hidden;
    }
    .skip-link:focus{
      left:14px; top:14px; width:auto; height:auto; padding:10px 12px;
      background:#fff; border:1px solid var(--line); border-radius:12px; z-index:9999;
      box-shadow: var(--shadow);
    }

    header{
      position:sticky; top:0; z-index:50;
      backdrop-filter:saturate(140%) blur(10px);
      background: rgba(255,255,255,.70);
      border-bottom:1px solid rgba(231,233,240,.65);
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:14px 0;
    }
    .brand{
      display:flex; align-items:center; gap:10px;
      min-width: 190px;
    }
    .ai-page-logo{
      width:auto; height:34px; display:block;
      object-fit:contain;
    }
    .brand-title{
      display:flex; flex-direction:column; line-height:1.1;
    }
    .brand-title strong{ font-size:14px; letter-spacing:.2px; }
    .brand-title span{ font-size:12px; color:var(--muted); }

    nav{
      display:flex; align-items:center; gap:16px;
      flex-wrap:nowrap;
    }
    .nav-links{
      display:flex; gap:16px; align-items:center;
      white-space:nowrap;
    }
    .nav-links a{
      font-size:13px;
      color: #2b2f3a;
      opacity:.92;
      padding:10px 8px;
      border-radius:12px;
      transition: background .2s ease, transform .2s ease, opacity .2s ease;
    }
    .nav-links a:hover{
      background: rgba(91,44,255,.08);
      transform: translateY(-1px);
      opacity:1;
    }
    .nav-actions{
      display:flex; gap:10px; align-items:center;
    }

    .btn{
      appearance:none;
      border:1px solid transparent;
      background: transparent;
      color: var(--text);
      padding:11px 14px;
      border-radius:14px;
      font-weight:700;
      font-size:13px;
      cursor:pointer;
      transition: transform .12s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      user-select:none;
      -webkit-tap-highlight-color: transparent;
    }
    .btn:focus{ outline:none; box-shadow: var(--focus); }
    .btn:hover{ transform: translateY(-1px); }

    .btn-primary{
      background: linear-gradient(135deg, var(--brand), #7b5cff 60%, #ff2a6d 120%);
      color:#fff;
      box-shadow: 0 14px 30px rgba(91,44,255,.22);
      border-color: rgba(255,255,255,.14);
    }
    .btn-primary:hover{
      box-shadow: 0 18px 36px rgba(91,44,255,.28);
    }
    .btn-ghost{
      border-color: rgba(231,233,240,.95);
      background: rgba(255,255,255,.76);
    }
    .btn-ghost:hover{
      background:#fff;
      border-color: rgba(91,44,255,.18);
    }

    .hamburger{
      display:none;
      width:42px; height:42px;
      border-radius:14px;
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.82);
      cursor:pointer;
      transition: transform .12s ease, background .2s ease;
      -webkit-tap-highlight-color: transparent;
      align-items:center; justify-content:center;
      gap:4px; flex-direction:column;
      padding:0;
    }
    .hamburger:focus{ outline:none; box-shadow: var(--focus); }
    .hamburger span{
      display:block; width:18px; height:2px; background:#262a35; border-radius:2px;
      opacity:.95;
    }

    .mobile-panel{
      display:none;
      padding-bottom:14px;
    }
    .mobile-panel .panel-card{
      background:#fff;
      border:1px solid rgba(231,233,240,.95);
      border-radius:18px;
      box-shadow: var(--shadow);
      padding:12px;
    }
    .mobile-panel .panel-links{
      display:flex; flex-direction:column; gap:8px;
    }
    .mobile-panel .panel-links a{
      padding:12px 12px;
      border-radius:14px;
      border:1px solid rgba(231,233,240,.8);
      background: rgba(251,247,255,.55);
      font-weight:650;
      font-size:13px;
    }
    .mobile-panel .panel-links a:active{ transform: translateY(1px); }

    main{ padding: 18px 0 0; }
    section{ scroll-margin-top: 90px; }

    .hero{
      position:relative;
      overflow:hidden;
      padding: 34px 0 16px;
    }
    .hero-inner{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap:18px;
      align-items:stretch;
    }

    .hero-surface{
      position:absolute; inset:-80px -120px auto -120px;
      height: 520px;
      pointer-events:none;
      background:
        radial-gradient(650px 280px at 25% 25%, rgba(255,42,109,.18), transparent 60%),
        radial-gradient(700px 320px at 70% 10%, rgba(91,44,255,.16), transparent 62%),
        radial-gradient(520px 260px at 78% 78%, rgba(0,179,166,.12), transparent 58%),
        linear-gradient(180deg, rgba(251,247,255,.85), rgba(255,255,255,.0));
      filter: saturate(120%);
    }

    .hero-left{
      background: rgba(255,255,255,.72);
      border:1px solid rgba(231,233,240,.95);
      border-radius: var(--radius-xl);
      box-shadow: 0 18px 44px rgba(18,22,33,.08);
      padding: 22px;
      position:relative;
      overflow:hidden;
    }
    .hero-left:before{
      content:"";
      position:absolute; inset:-1px;
      background:
        linear-gradient(135deg, rgba(91,44,255,.25), transparent 40%),
        linear-gradient(315deg, rgba(255,42,109,.22), transparent 44%);
      opacity:.55;
      pointer-events:none;
    }
    .hero-left > *{ position:relative; }

    .kicker{
      display:flex; flex-wrap:wrap; gap:10px; align-items:center;
      margin-bottom:10px;
    }
    .pill{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 12px;
      border-radius: 999px;
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.78);
      font-size:12px; font-weight:750;
    }
    .pill i{
      width:10px; height:10px; border-radius:999px;
      background: linear-gradient(135deg, var(--brand), var(--accent));
      box-shadow: 0 0 0 4px rgba(91,44,255,.12);
      display:inline-block;
    }
    .kicker .tagline{
      color: var(--muted);
      font-size:12.5px;
      font-weight:650;
    }

    h1{
      margin: 10px 0 10px;
      font-size: 34px;
      line-height: 1.12;
      letter-spacing: -0.4px;
    }
    .lead{
      margin:0;
      color: var(--muted);
      font-size: 14.5px;
      line-height: 1.7;
      max-width: 60ch;
    }

    .hero-cta{
      display:flex; flex-wrap:wrap; gap:12px; align-items:center;
      margin-top: 16px;
    }
    .hero-cta .cta-meta{
      display:flex; align-items:center; gap:10px;
      color: var(--subtle);
      font-size:12.5px;
      font-weight:650;
      margin-left: 6px;
    }
    .spark{
      width:12px; height:12px;
      border-radius:3px;
      background: linear-gradient(135deg, var(--accent2), var(--accent));
      transform: rotate(10deg);
      box-shadow: 0 10px 20px rgba(255,122,0,.22);
    }

    .hero-right{
      display:flex; flex-direction:column; gap:12px;
    }
    .hero-metrics{
      border-radius: var(--radius-xl);
      border:1px solid rgba(231,233,240,.95);
      background:
        radial-gradient(500px 220px at 20% 0%, rgba(255,42,109,.14), transparent 50%),
        radial-gradient(520px 260px at 95% 30%, rgba(91,44,255,.16), transparent 52%),
        rgba(255,255,255,.72);
      box-shadow: 0 18px 44px rgba(18,22,33,.07);
      padding: 18px;
      overflow:hidden;
      position:relative;
    }
    .hero-metrics:after{
      content:"";
      position:absolute; right:-70px; top:-70px;
      width:160px; height:160px;
      background: radial-gradient(circle at 30% 30%, rgba(255,42,109,.55), rgba(255,42,109,0) 60%);
      transform: rotate(12deg);
      opacity:.55;
      pointer-events:none;
    }

    .metric-grid{
      position:relative;
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      margin-top:8px;
    }
    .metric{
      padding:12px;
      border-radius: 16px;
      border: 1px solid rgba(231,233,240,.85);
      background: rgba(255,255,255,.78);
      transition: transform .18s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .metric:hover{
      transform: translateY(-2px);
      box-shadow: 0 14px 26px rgba(18,22,33,.10);
      border-color: rgba(91,44,255,.22);
    }
    .metric strong{
      display:block;
      font-size:18px;
      letter-spacing:-.2px;
    }
    .metric span{
      display:block;
      margin-top:4px;
      font-size:12.5px;
      color: var(--muted);
      line-height:1.3;
      font-weight:650;
    }

    .signal{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-top:2px;
    }
    .signal .status{
      display:flex; align-items:center; gap:10px;
      font-weight:750;
      font-size:13px;
    }
    .dot{
      width:10px; height:10px; border-radius:999px;
      background: var(--teal);
      box-shadow: 0 0 0 5px rgba(0,179,166,.16);
      animation: pulse 2.1s ease-in-out infinite;
    }
    @keyframes pulse{
      0%,100%{ transform: scale(1); opacity:1; }
      50%{ transform: scale(1.18); opacity:.78; }
    }
    .signal .mini-link{
      font-size:12.5px;
      font-weight:800;
      color: #3a2d8c;
      background: rgba(91,44,255,.08);
      border:1px solid rgba(91,44,255,.18);
      padding:9px 10px;
      border-radius: 14px;
      transition: transform .12s ease, background .2s ease;
      white-space:nowrap;
    }
    .signal .mini-link:hover{ transform: translateY(-1px); background: rgba(91,44,255,.11); }

    .quick-card{
      border-radius: var(--radius-xl);
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.76);
      box-shadow: 0 18px 44px rgba(18,22,33,.06);
      padding: 16px;
    }
    .quick-title{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      margin-bottom:10px;
    }
    .quick-title h3{
      margin:0;
      font-size:14.5px;
      letter-spacing:-.1px;
    }
    .badge{
      display:inline-flex; align-items:center; gap:8px;
      border-radius: 999px;
      padding:7px 10px;
      border:1px solid rgba(231,233,240,.95);
      background: rgba(251,247,255,.7);
      font-size:12px; font-weight:850;
      color:#3b2a8a;
    }
    .badge b{
      width:18px; height:18px; border-radius:8px;
      display:inline-flex; align-items:center; justify-content:center;
      background: linear-gradient(135deg, var(--brand), var(--accent));
      color:#fff; font-size:12px;
    }
    .quick-list{
      display:grid;
      grid-template-columns: 1fr;
      gap:8px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .quick-list li{
      display:flex; align-items:flex-start; gap:10px;
      padding:10px 10px;
      border-radius: 16px;
      border:1px solid rgba(231,233,240,.85);
      background: rgba(255,255,255,.80);
    }
    .check{
      width:18px; height:18px; border-radius:6px;
      background: rgba(91,44,255,.10);
      border:1px solid rgba(91,44,255,.22);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      margin-top:2px;
    }
    .check svg{ width:12px; height:12px; color: var(--brand); }
    .quick-list b{
      display:block;
      font-size:13px;
      margin-bottom:2px;
    }
    .quick-list span{
      display:block;
      font-size:12.5px;
      color: var(--muted);
      line-height:1.45;
      font-weight:650;
    }

    .section{
      padding: 18px 0 10px;
    }
    .section-title{
      display:flex; align-items:flex-end; justify-content:space-between; gap:14px;
      margin-bottom: 12px;
    }
    .section-title h2{
      margin:0;
      font-size: 22px;
      letter-spacing: -.25px;
    }
    .section-title p{
      margin:0;
      color: var(--muted);
      font-size:13.5px;
      line-height:1.6;
      max-width: 62ch;
      font-weight:650;
    }
    .section-title .right-note{
      font-size:12.5px;
      color: #4a5566;
      font-weight:800;
      padding:9px 10px;
      border-radius: 999px;
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.74);
      white-space:nowrap;
    }

    .grid-3{
      display:grid; grid-template-columns: repeat(3, 1fr);
      gap:12px;
      align-items:stretch;
    }
    .grid-2{
      display:grid; grid-template-columns: repeat(2, 1fr);
      gap:12px;
      align-items:stretch;
    }
    .card{
      border-radius: var(--radius-xl);
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.78);
      box-shadow: 0 14px 34px rgba(18,22,33,.05);
      padding: 16px;
      transition: transform .18s ease, box-shadow .2s ease, border-color .2s ease;
      position:relative;
      overflow:hidden;
    }
    .card:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 44px rgba(18,22,33,.08);
      border-color: rgba(91,44,255,.22);
    }
    .card h3{
      margin: 8px 0 6px;
      font-size: 15px;
      letter-spacing:-.1px;
    }
    .card p{
      margin:0;
      color: var(--muted);
      font-size:13.5px;
      line-height: 1.7;
      font-weight:650;
    }
    .icon{
      width:44px; height:44px;
      border-radius: 16px;
      display:flex; align-items:center; justify-content:center;
      border:1px solid rgba(231,233,240,.95);
      background:
        radial-gradient(18px 18px at 30% 30%, rgba(255,255,255,.9), rgba(255,255,255,0) 60%),
        linear-gradient(135deg, rgba(91,44,255,.14), rgba(255,42,109,.10));
      flex:0 0 auto;
    }
    .icon svg{ width:22px; height:22px; color: var(--brand); }

    .capability{
      background:
        radial-gradient(740px 280px at 20% 0%, rgba(91,44,255,.12), transparent 54%),
        radial-gradient(640px 260px at 90% 30%, rgba(255,42,109,.10), transparent 52%),
        rgba(255,255,255,.76);
      border:1px solid rgba(231,233,240,.95);
      border-radius: var(--radius-xl);
      box-shadow: 0 18px 44px rgba(18,22,33,.06);
      padding: 16px;
      overflow:hidden;
    }

    .steps{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap:12px;
      align-items:stretch;
    }
    .step{
      padding: 16px;
      border-radius: var(--radius-xl);
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.80);
      position:relative;
      overflow:hidden;
    }
    .step:before{
      content:"";
      position:absolute; left:-40px; top:-60px;
      width:120px; height:120px;
      background: radial-gradient(circle at 30% 30%, rgba(255,42,109,.20), transparent 60%);
      pointer-events:none;
      opacity:.75;
    }
    .step .num{
      font-weight:900;
      font-size:12px;
      letter-spacing:.12em;
      color:#4c2aa8;
      display:flex; align-items:center; gap:10px;
      position:relative;
    }
    .step .num i{
      width:26px; height:26px; border-radius:12px;
      display:inline-flex; align-items:center; justify-content:center;
      background: rgba(91,44,255,.10);
      border:1px solid rgba(91,44,255,.22);
      color: var(--brand);
      font-style:normal;
      letter-spacing:0;
      font-size:12px;
    }
    .step h3{
      margin:10px 0 6px;
      font-size:15px;
      position:relative;
    }
    .step p{
      margin:0;
      color: var(--muted);
      font-size:13.5px;
      line-height:1.7;
      font-weight:650;
      position:relative;
    }

    .compare{
      overflow:hidden;
      border-radius: var(--radius-xl);
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.78);
      box-shadow: 0 18px 44px rgba(18,22,33,.06);
    }
    .table-wrap{
      overflow:auto;
    }
    table{
      width:100%;
      min-width: 820px;
      border-collapse: separate;
      border-spacing:0;
    }
    thead th{
      text-align:left;
      font-size:13px;
      color:#2b2f3a;
      font-weight:900;
      padding:14px 14px;
      background:
        linear-gradient(135deg, rgba(91,44,255,.10), rgba(255,42,109,.08));
      border-bottom:1px solid rgba(231,233,240,.95);
      position:sticky; top:0;
      z-index:2;
    }
    tbody td{
      padding:13px 14px;
      border-bottom:1px solid rgba(231,233,240,.75);
      color: var(--muted);
      font-weight:650;
      font-size:13.5px;
      vertical-align:top;
    }
    tbody tr:hover td{
      background: rgba(91,44,255,.04);
      color:#3a4150;
    }
    .td-strong{
      color:#1c1f27;
    }
    .mark{
      display:inline-flex; align-items:center; gap:8px;
      padding:7px 10px;
      border-radius:999px;
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.86);
      font-weight:900;
      color:#2c2f3a;
      white-space:nowrap;
    }
    .mark svg{ width:14px; height:14px; color: var(--teal); }

    .ranking{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      align-items:stretch;
      margin-top:12px;
    }
    .rating-card{
      border-radius: var(--radius-xl);
      border:1px solid rgba(231,233,240,.95);
      background:
        radial-gradient(520px 240px at 10% 10%, rgba(255,42,109,.12), transparent 50%),
        radial-gradient(520px 240px at 90% 0%, rgba(91,44,255,.14), transparent 55%),
        rgba(255,255,255,.78);
      box-shadow: 0 18px 44px rgba(18,22,33,.06);
      padding:16px;
      overflow:hidden;
    }
    .rating-head{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
    }
    .rating-title{
      display:flex; flex-direction:column; gap:4px;
    }
    .rating-title strong{ font-size:16px; letter-spacing:-.2px; }
    .rating-title span{ color:var(--muted); font-weight:700; font-size:13px; }
    .stars{
      display:flex; gap:4px; align-items:center;
      padding:10px 12px;
      border-radius: 16px;
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.8);
    }
    .stars svg{ width:18px; height:18px; color:#ffb300; }
    .score{
      display:flex; align-items:baseline; gap:10px;
      margin-top:14px;
    }
    .score .big{
      font-size:44px;
      font-weight:950;
      letter-spacing:-1px;
      line-height:1;
      background: linear-gradient(135deg, #1a1f2a, #4b2aa8);
      -webkit-background-clip:text;
      background-clip:text;
      color: transparent;
    }
    .score .meta{
      color:var(--muted);
      font-weight:800;
      font-size:13.5px;
      line-height:1.5;
    }

    .feature-list{
      margin:12px 0 0; padding:0; list-style:none;
      display:grid; gap:10px;
    }
    .feature-item{
      display:flex; gap:10px; align-items:flex-start;
      padding:12px;
      border-radius: 18px;
      border:1px solid rgba(231,233,240,.85);
      background: rgba(255,255,255,.84);
    }
    .feature-item .dot2{
      width:12px; height:12px; border-radius:5px;
      background: linear-gradient(135deg, var(--brand), var(--accent));
      box-shadow: 0 0 0 5px rgba(91,44,255,.14);
      margin-top:4px;
      flex:0 0 auto;
    }
    .feature-item b{ display:block; font-size:13.5px; margin-bottom:2px; }
    .feature-item span{ display:block; color: var(--muted); font-size:13px; font-weight:700; line-height:1.6; }

    .scenario{
      display:grid; grid-template-columns: 1fr 1fr;
      gap:12px; align-items:stretch;
    }
    .scenario .mini{
      border-radius: var(--radius-xl);
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.78);
      padding: 16px;
      box-shadow: 0 14px 34px rgba(18,22,33,.05);
    }
    .mini h3{ margin:0 0 8px; font-size:15px; letter-spacing:-.1px; }
    .mini p{ margin:0; color:var(--muted); font-size:13.5px; line-height:1.7; font-weight:650; }
    .chip-row{
      display:flex; flex-wrap:wrap; gap:8px;
      margin-top:12px;
    }
    .chip{
      border-radius: 999px;
      border:1px solid rgba(231,233,240,.95);
      background: rgba(251,247,255,.65);
      padding:8px 10px;
      font-size:12.5px;
      font-weight:850;
      color:#3a3f4a;
    }
    .chip.hot{
      border-color: rgba(255,42,109,.22);
      background: rgba(255,42,109,.08);
      color:#6a1332;
    }

    .form-card{
      border-radius: var(--radius-xl);
      border:1px solid rgba(231,233,240,.95);
      background:
        radial-gradient(640px 260px at 10% 0%, rgba(91,44,255,.14), transparent 55%),
        radial-gradient(640px 260px at 90% 20%, rgba(255,42,109,.12), transparent 55%),
        rgba(255,255,255,.78);
      box-shadow: 0 18px 44px rgba(18,22,33,.06);
      padding: 16px;
      overflow:hidden;
    }
    form{
      display:grid; gap:10px;
      margin-top: 10px;
    }
    .row2{
      display:grid; grid-template-columns: 1fr 1fr; gap:10px;
    }
    label{
      display:flex; flex-direction:column; gap:7px;
      font-weight:850;
      font-size:12.5px;
      color:#2b2f3a;
    }
    input, select, textarea{
      border-radius: 14px;
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.86);
      padding:12px 12px;
      font-size:14px;
      color: var(--text);
      font-weight:700;
      outline:none;
      transition: box-shadow .2s ease, border-color .2s ease, transform .12s ease;
    }
    textarea{ min-height: 96px; resize: vertical; }
    input:focus, select:focus, textarea:focus{
      box-shadow: var(--focus);
      border-color: rgba(91,44,255,.35);
    }
    .form-actions{
      display:flex; gap:10px; align-items:center; flex-wrap:wrap;
      margin-top: 6px;
    }
    .form-hint{
      color: var(--muted);
      font-size:12.5px;
      font-weight:700;
      line-height:1.5;
      flex: 1 1 200px;
    }

    .article-list, .case-list{
      display:grid; gap:12px;
    }
    .list-item{
      display:flex; align-items:flex-start; justify-content:space-between; gap:14px;
      padding:14px;
      border-radius: var(--radius-xl);
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.78);
      transition: transform .18s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .list-item:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 44px rgba(18,22,33,.08);
      border-color: rgba(255,42,109,.22);
    }
    .list-item .left{
      display:flex; flex-direction:column; gap:6px;
      min-width: 0;
    }
    .list-item .meta{
      display:flex; flex-wrap:wrap; gap:8px; align-items:center;
      color: var(--subtle);
      font-weight:850;
      font-size:12.5px;
    }
    .list-item .meta .dotSep{
      width:6px; height:6px; border-radius:999px;
      background: rgba(91,44,255,.45);
      display:inline-block;
    }
    .list-item h3{
      margin:0;
      font-size:15px;
      letter-spacing:-.1px;
      line-height:1.35;
    }
    .list-item p{
      margin:0;
      color: var(--muted);
      font-weight:650;
      font-size:13.5px;
      line-height:1.6;
      max-width: 70ch;
    }
    .list-item .right{
      display:flex; flex-direction:column; gap:10px; align-items:flex-end;
      flex:0 0 auto;
    }
    .link-btn{
      border-radius:14px;
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.86);
      padding:10px 12px;
      font-size:13px;
      font-weight:900;
      color:#2c2f3a;
      transition: transform .12s ease, background .2s ease, border-color .2s ease;
      white-space:nowrap;
    }
    .link-btn:hover{
      transform: translateY(-1px);
      background: rgba(91,44,255,.08);
      border-color: rgba(91,44,255,.22);
    }

    .tabs{
      display:flex; gap:10px; flex-wrap:wrap;
      margin: 4px 0 12px;
    }
    .tab{
      border-radius:999px;
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.76);
      padding:10px 12px;
      font-weight:900;
      font-size:13px;
      cursor:pointer;
      transition: transform .12s ease, background .2s ease, border-color .2s ease;
      user-select:none;
      -webkit-tap-highlight-color: transparent;
    }
    .tab:hover{ transform: translateY(-1px); border-color: rgba(91,44,255,.22); }
    .tab[aria-selected="true"]{
      background: linear-gradient(135deg, rgba(91,44,255,.14), rgba(255,42,109,.10));
      border-color: rgba(91,44,255,.30);
    }

    .compare-side{
      display:grid; grid-template-columns: 1fr 1fr;
      gap:12px;
    }

    .timeline{
      border-radius: var(--radius-xl);
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.78);
      box-shadow: 0 14px 34px rgba(18,22,33,.05);
      padding: 16px;
      overflow:hidden;
    }
    .time-row{
      display:grid;
      grid-template-columns: 1fr;
      gap:10px;
      margin-top:12px;
    }
    .time-item{
      display:flex; gap:12px; align-items:flex-start;
      padding:12px;
      border-radius: 18px;
      border:1px solid rgba(231,233,240,.85);
      background: rgba(255,255,255,.84);
    }
    .time-item .t{
      width:38px; height:38px; border-radius: 16px;
      display:flex; align-items:center; justify-content:center;
      border:1px solid rgba(91,44,255,.22);
      background: rgba(91,44,255,.08);
      font-weight:950;
      color: var(--brand);
      flex:0 0 auto;
    }
    .time-item b{ display:block; font-size:13.5px; margin-bottom:2px; }
    .time-item span{ display:block; color: var(--muted); font-weight:700; font-size:13px; line-height:1.6; }

    .faq-grid{
      display:grid;
      grid-template-columns: 1fr;
      gap:10px;
    }
    .faq{
      border-radius: var(--radius-xl);
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.78);
      box-shadow: 0 14px 34px rgba(18,22,33,.05);
      overflow:hidden;
    }
    details.faq-details{
      border-top:1px solid rgba(231,233,240,.75);
    }
    details.faq-details:first-child{ border-top:none; }
    details.faq-details > summary{
      cursor:pointer;
      list-style:none;
      padding: 14px 14px;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:14px;
      font-weight:950;
      font-size:14px;
      color:#1d2028;
      user-select:none;
    }
    details.faq-details > summary::-webkit-details-marker{ display:none; }
    .faq-arrow{
      width:28px; height:28px;
      border-radius: 12px;
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.88);
      flex:0 0 auto;
      display:flex; align-items:center; justify-content:center;
      transition: transform .18s ease, border-color .2s ease;
      margin-top:-2px;
    }
    .faq-arrow svg{ width:14px; height:14px; color: var(--brand); }
    details[open] .faq-arrow{ transform: rotate(180deg); border-color: rgba(91,44,255,.28); }
    .faq-answer{
      padding:0 14px 14px;
      color: var(--muted);
      font-weight:700;
      font-size:13.5px;
      line-height:1.75;
    }

    .reviews{
      display:grid; grid-template-columns: repeat(3, 1fr);
      gap:12px;
      align-items:stretch;
    }
    .review{
      border-radius: var(--radius-xl);
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.78);
      box-shadow: 0 14px 34px rgba(18,22,33,.05);
      padding: 16px;
      display:flex; flex-direction:column; gap:10px;
      transition: transform .18s ease, box-shadow .2s ease, border-color .2s ease;
      overflow:hidden;
      position:relative;
    }
    .review:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 44px rgba(18,22,33,.08);
      border-color: rgba(0,179,166,.24);
    }
    .review:before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(360px 140px at 10% 0%, rgba(0,179,166,.14), transparent 55%),
        radial-gradient(360px 160px at 90% 10%, rgba(255,42,109,.10), transparent 55%);
      opacity:.65; pointer-events:none;
    }
    .review > *{ position:relative; }
    .review-top{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
    }
    .avatar{
      width:44px; height:44px; border-radius: 18px;
      border:1px solid rgba(231,233,240,.95);
      background:
        linear-gradient(135deg, rgba(91,44,255,.14), rgba(255,42,109,.10));
      display:flex; align-items:center; justify-content:center;
      font-weight:1000;
      color:#2c2f3a;
    }
    .review-name{
      display:flex; flex-direction:column; gap:3px;
      min-width:0;
    }
    .review-name b{ font-size:14px; }
    .review-name span{ font-size:12.5px; color: var(--muted); font-weight:800; }
    .review p{
      margin:0;
      color: var(--muted);
      font-weight:700;
      font-size:13.5px;
      line-height:1.75;
    }
    .review-tags{
      display:flex; flex-wrap:wrap; gap:8px;
      margin-top:auto;
    }
    .tiny{
      border-radius: 999px;
      padding:8px 10px;
      border:1px solid rgba(231,233,240,.95);
      background: rgba(251,247,255,.65);
      font-size:12px;
      font-weight:950;
      color:#3a3f4a;
      white-space:nowrap;
    }

    .tag-cloud{
      border-radius: var(--radius-xl);
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.78);
      box-shadow: 0 14px 34px rgba(18,22,33,.05);
      padding: 16px;
      overflow:hidden;
    }
    .cloud{
      display:flex; flex-wrap:wrap; gap:10px;
      margin-top:10px;
    }
    .cloud a{
      padding:10px 12px;
      border-radius: 999px;
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.84);
      font-weight:950;
      font-size:13px;
      color:#2b2f3a;
      transition: transform .12s ease, background .2s ease, border-color .2s ease;
      display:inline-flex; align-items:center; gap:10px;
    }
    .cloud a:hover{
      transform: translateY(-2px);
      background: rgba(91,44,255,.08);
      border-color: rgba(91,44,255,.22);
    }
    .cloud a i{
      width:10px; height:10px; border-radius:4px;
      background: linear-gradient(135deg, var(--brand), var(--accent));
      box-shadow: 0 0 0 5px rgba(91,44,255,.10);
      display:inline-block;
    }

    .network{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      align-items:stretch;
    }
    .net-card{
      border-radius: var(--radius-xl);
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.78);
      box-shadow: 0 14px 34px rgba(18,22,33,.05);
      padding: 16px;
      overflow:hidden;
    }
    .net-card h3{ margin:0 0 8px; font-size:15px; }
    .net-card p{ margin:0; color: var(--muted); font-weight:700; line-height:1.7; font-size:13.5px; }
    .support-grid{
      display:grid; grid-template-columns: 1fr 1fr;
      gap:10px; margin-top:12px;
    }
    .support{
      padding:12px;
      border-radius: 18px;
      border:1px solid rgba(231,233,240,.85);
      background: rgba(255,255,255,.84);
    }
    .support b{ display:block; font-size:13.5px; margin-bottom:4px; }
    .support span{ display:block; color:var(--muted); font-weight:700; font-size:13px; line-height:1.6; }

    .footer{
      margin-top: 16px;
      padding: 18px 0 16px;
      border-top:1px solid rgba(231,233,240,.95);
      background:
        radial-gradient(700px 240px at 10% 0%, rgba(91,44,255,.10), transparent 55%),
        radial-gradient(700px 240px at 90% 10%, rgba(255,42,109,.10), transparent 55%),
        #fff;
    }
    footer .foot-inner{
      display:grid; grid-template-columns: 1.2fr .8fr;
      gap:12px;
      align-items:start;
    }
    .foot-brand{
      display:flex; flex-direction:column; gap:10px;
      padding: 14px;
      border-radius: var(--radius-xl);
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.78);
      box-shadow: 0 14px 34px rgba(18,22,33,.05);
    }
    .foot-brand .top{
      display:flex; align-items:center; gap:12px; flex-wrap:wrap;
    }
    .foot-brand img{ width:auto; height:34px; display:block; }
    .foot-brand p{
      margin:0;
      color: var(--muted);
      font-weight:700;
      line-height:1.7;
      font-size:13.5px;
    }
    .foot-links{
      padding: 14px;
      border-radius: var(--radius-xl);
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.78);
      box-shadow: 0 14px 34px rgba(18,22,33,.05);
    }
    .foot-links .grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px 14px;
      margin-top:10px;
    }
    .foot-links a{
      padding:10px 12px;
      border-radius: 14px;
      border:1px solid rgba(231,233,240,.85);
      background: rgba(255,255,255,.84);
      font-size:13px;
      font-weight:900;
      color:#2b2f3a;
      transition: transform .12s ease, border-color .2s ease, background .2s ease;
      display:block;
    }
    .foot-links a:hover{
      transform: translateY(-1px);
      border-color: rgba(255,42,109,.24);
      background: rgba(255,42,109,.06);
    }
    .copy{
      margin-top: 14px;
      color: var(--muted);
      font-weight:750;
      font-size:12.5px;
      text-align:center;
      padding-bottom: 4px;
    }

    .float-kefu{
      position:fixed;
      right:14px; bottom: 14px;
      z-index:80;
      display:flex; flex-direction:column; gap:10px;
      align-items:flex-end;
    }
    .float-box{
      border-radius: 18px;
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.86);
      box-shadow: 0 18px 44px rgba(18,22,33,.10);
      overflow:hidden;
      width: 160px;
      transform-origin: 100% 100%;
      transition: transform .18s ease, opacity .2s ease;
    }
    .float-box[aria-hidden="true"]{
      transform: scale(.98);
      opacity:0;
      pointer-events:none;
    }
    .float-box .head{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      padding:10px 10px;
      border-bottom:1px solid rgba(231,233,240,.85);
      background: linear-gradient(135deg, rgba(91,44,255,.10), rgba(255,42,109,.08));
      font-weight:950;
      font-size:12.5px;
      color:#2b2f3a;
    }
    .float-box img{
      width: 100%;
      height:auto;
      display:block;
      background:#fff;
    }
    .float-btn{
      border-radius: 18px;
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.86);
      box-shadow: 0 18px 44px rgba(18,22,33,.10);
      width: 48px; height:48px;
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      -webkit-tap-highlight-color: transparent;
      transition: transform .12s ease, background .2s ease, border-color .2s ease;
    }
    .float-btn:focus{ outline:none; box-shadow: var(--focus); }
    .float-btn:hover{ transform: translateY(-2px); border-color: rgba(91,44,255,.25); }
    .float-btn svg{ width:20px; height:20px; color: var(--brand); }

    .backtop{
      border-radius: 18px;
      border:1px solid rgba(231,233,240,.95);
      background: rgba(255,255,255,.86);
      box-shadow: 0 18px 44px rgba(18,22,33,.10);
      width: 48px; height:48px;
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      -webkit-tap-highlight-color: transparent;
      transition: transform .12s ease, background .2s ease, border-color .2s ease, opacity .2s ease;
    }
    .backtop[aria-hidden="true"]{
      opacity:0; pointer-events:none; transform: translateY(8px);
    }
    .backtop:focus{ outline:none; box-shadow: var(--focus); }
    .backtop:hover{ transform: translateY(-2px); border-color: rgba(0,179,166,.25); }
    .backtop svg{ width:20px; height:20px; color: var(--teal); }

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

    @media (max-width: 980px){
      .hero-inner{ grid-template-columns: 1fr; }
      .hero-right{ flex-direction:row; }
      .hero-metrics{ flex: 1 1 360px; }
      .quick-card{ flex: 1 1 260px; }
      .grid-3{ grid-template-columns: 1fr; }
      .grid-2{ grid-template-columns: 1fr; }
      .steps{ grid-template-columns: 1fr 1fr; }
      .ranking{ grid-template-columns: 1fr; }
      .scenario{ grid-template-columns: 1fr; }
      .reviews{ grid-template-columns: 1fr; }
      .network{ grid-template-columns: 1fr; }
      footer .foot-inner{ grid-template-columns: 1fr; }
      .reviews .review{ }
    }
    @media (max-width: 760px){
      .nav-links{ display:none; }
      .nav-actions .btn-ghost{ display:none; }
      .hamburger{ display:flex; }
      .mobile-panel{ display:block; }
      .hero-left{ padding: 18px; }
      h1{ font-size: 28px; }
      .hero-right{ flex-direction:column; }
      .steps{ grid-template-columns: 1fr; }
      .row2{ grid-template-columns: 1fr; }
      .section-title{ align-items:flex-start; flex-direction:column; }
      .section-title .right-note{ align-self:flex-start; }
      .support-grid{ grid-template-columns: 1fr; }
      .float-kefu{ right:12px; bottom:12px; }
      .float-box{ width: 150px; }
    }

    @media (prefers-reduced-motion: reduce){
      *{ scroll-behavior:auto !important; }
      .fade-in{ transition:none; transform:none; opacity:1; }
      .dot{ animation:none; }
      .metric:hover,.card:hover,.list-item:hover,.review:hover,.tab:hover,.btn:hover{ transform:none; }
    }