:root{
      --bg0:#fbfbfe;
      --bg1:#f3f6ff;
      --card:#ffffff;
      --text:#15181f;
      --muted:#5b6476;
      --line:rgba(15,23,42,.10);
      --line2:rgba(15,23,42,.14);
      --brand:#5b7cfa;
      --brand2:#20c997;
      --brand3:#7c4dff;
      --warn:#f59e0b;
      --ok:#10b981;
      --shadow: 0 18px 60px rgba(20, 29, 60, .10);
      --shadow2: 0 10px 30px rgba(20, 29, 60, .10);
      --radius:16px;
      --radius2:22px;
      --container: 1120px;
      --gap: 18px;
      --ring: 0 0 0 4px rgba(91,124,250,.18);
      --ring2: 0 0 0 4px rgba(32,201,151,.18);
      --grad: linear-gradient(135deg, rgba(91,124,250,.95), rgba(124,77,255,.92) 45%, rgba(32,201,151,.85));
      --grad2: radial-gradient(900px 420px at 20% -10%, rgba(91,124,250,.22), rgba(91,124,250,0) 60%),
               radial-gradient(700px 380px at 80% 0%, rgba(124,77,255,.18), rgba(124,77,255,0) 60%),
               radial-gradient(760px 420px at 50% 30%, rgba(32,201,151,.12), rgba(32,201,151,0) 60%);
      --glass: rgba(255,255,255,.74);
      --glass2: rgba(255,255,255,.58);
      --link:#3042ff;
    }

    *{box-sizing:border-box}
    html,body{height:100%}
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
                   "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC", Arial, sans-serif;
      color:var(--text);
      background:
        var(--grad2),
        linear-gradient(180deg, var(--bg0), var(--bg1) 55%, var(--bg0));
      overflow-x:hidden;
    }

    a{color:inherit; text-decoration:none}
    a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible{
      outline:none;
      box-shadow: var(--ring);
      border-color: rgba(91,124,250,.45) !important;
    }

    .container{
      width: min(var(--container), calc(100% - 32px));
      margin: 0 auto;
    }

    .topbar{
      position: sticky;
      top: 0;
      z-index: 50;
      backdrop-filter: blur(10px);
      background: rgba(251,251,254,.78);
      border-bottom: 1px solid rgba(15,23,42,.08);
    }

    .topbar-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding: 14px 0;
      gap: 14px;
    }

    .brand{
      display:flex;
      align-items:center;
      gap: 10px;
      min-width: 210px;
    }

    .ai-page-logo{
      width: 38px;
      height: 38px;
      object-fit: contain;
      border-radius: 10px;
      background: rgba(255,255,255,.8);
      border: 1px solid rgba(15,23,42,.08);
    }

    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.1;
    }
    .brand-text strong{
      font-size: 14px;
      letter-spacing:.2px;
    }
    .brand-text span{
      font-size: 12px;
      color: var(--muted);
      margin-top: 2px;
    }

    .nav{
      display:flex;
      align-items:center;
      gap: 14px;
      flex: 1;
      justify-content: center;
    }

    .nav a{
      font-size: 13px;
      color: rgba(21,24,31,.86);
      padding: 8px 10px;
      border-radius: 10px;
      border: 1px solid transparent;
      transition: transform .18s ease, background .18s ease, border-color .18s ease;
      white-space:nowrap;
    }

    .nav a:hover{
      transform: translateY(-1px);
      background: rgba(255,255,255,.66);
      border-color: rgba(15,23,42,.10);
    }

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

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap: 10px;
      padding: 11px 14px;
      border-radius: 12px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.70);
      color: rgba(21,24,31,.92);
      font-weight: 650;
      font-size: 13px;
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
      cursor:pointer;
      user-select:none;
    }

    .btn:hover{
      transform: translateY(-1px);
      box-shadow: 0 16px 34px rgba(17,24,39,.10);
      border-color: rgba(15,23,42,.16);
      background: rgba(255,255,255,.86);
    }

    .btn:active{transform: translateY(0px)}
    .btn-primary{
      border-color: rgba(91,124,250,.30);
      background: linear-gradient(135deg, rgba(91,124,250,.95), rgba(124,77,255,.92));
      color: #fff;
      box-shadow: 0 18px 50px rgba(91,124,250,.22);
    }
    .btn-primary:hover{
      box-shadow: 0 24px 64px rgba(91,124,250,.28);
      border-color: rgba(91,124,250,.50);
    }

    .btn-ghost{
      background: rgba(255,255,255,.55);
    }

    .icon-dot{
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.95), rgba(255,255,255,0) 55%), var(--grad);
      box-shadow: 0 0 0 4px rgba(91,124,250,.14);
    }

    .menu-btn{
      display:none;
      padding: 11px 12px;
      border-radius: 12px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      cursor:pointer;
      transition: transform .18s ease, background .18s ease;
      color: rgba(21,24,31,.92);
      font-weight: 700;
      align-items:center;
      gap: 10px;
      justify-content:center;
      user-select:none;
    }
    .menu-btn:hover{transform: translateY(-1px); background: rgba(255,255,255,.86)}
    .hamburger{
      width:18px; height:12px; position:relative;
    }
    .hamburger i{
      position:absolute; left:0; right:0; height:2px; border-radius:2px; background: rgba(21,24,31,.82);
    }
    .hamburger i:nth-child(1){top:0}
    .hamburger i:nth-child(2){top:5px}
    .hamburger i:nth-child(3){bottom:0}

    .mobile-drawer{
      display:none;
      padding: 10px 0 14px;
    }
    .drawer-panel{
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.78);
      border-radius: 16px;
      padding: 10px;
      box-shadow: 0 16px 50px rgba(17,24,39,.10);
    }
    .drawer-links{
      display:flex; flex-wrap:wrap; gap: 10px;
      padding: 6px;
    }
    .drawer-links a{
      font-size: 13px;
      padding: 9px 10px;
      border-radius: 12px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.7);
      transition: transform .18s ease, background .18s ease;
      white-space:nowrap;
      flex: 0 0 auto;
    }
    .drawer-links a:hover{transform: translateY(-1px); background: rgba(255,255,255,.92)}

    .hero{
      position:relative;
      padding: 34px 0 10px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 20px;
      align-items: start;
    }
    .hero-left{
      padding: 18px 0 6px;
    }

    .badge-row{
      display:flex; flex-wrap:wrap; gap:10px; align-items:center;
      margin-bottom: 14px;
    }

    .badge{
      display:inline-flex;
      align-items:center;
      gap: 10px;
      padding: 8px 10px;
      border-radius: 999px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      font-size: 13px;
      color: rgba(21,24,31,.86);
    }
    .badge svg{display:block}
    .glow{
      width: 10px; height: 10px; border-radius: 50%;
      background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.95), rgba(255,255,255,0) 55%), var(--grad);
      box-shadow: 0 0 0 4px rgba(124,77,255,.13), 0 0 22px rgba(124,77,255,.25);
    }

    h1{
      margin: 0;
      font-size: clamp(26px, 4vw, 44px);
      letter-spacing: -0.02em;
      line-height: 1.05;
    }
    .subtitle{
      margin: 14px 0 0;
      color: var(--muted);
      font-size: 15.5px;
      line-height: 1.7;
      max-width: 58ch;
    }

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

    .hero-meta{
      margin-top: 14px;
      display:flex;
      gap: 10px;
      flex-wrap:wrap;
      align-items:center;
    }
    .meta-chip{
      display:flex;
      align-items:center;
      gap: 10px;
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.60);
      min-width: 150px;
    }
    .meta-chip b{
      font-size: 14px;
      letter-spacing:.1px;
    }
    .meta-chip span{
      font-size: 12.5px;
      color: var(--muted);
      display:block;
      margin-top: 2px;
    }

    .hero-right{
      position:relative;
    }
    .hero-panel{
      border-radius: var(--radius2);
      border: 1px solid rgba(15,23,42,.10);
      background:
        radial-gradient(800px 240px at 10% 0%, rgba(91,124,250,.18), rgba(91,124,250,0) 60%),
        radial-gradient(700px 280px at 90% 20%, rgba(124,77,255,.16), rgba(124,77,255,0) 60%),
        linear-gradient(180deg, rgba(255,255,255,.82), rgba(255,255,255,.64));
      box-shadow: var(--shadow2);
      padding: 16px;
      overflow:hidden;
      transform: translateZ(0);
    }

    .panel-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap: 12px;
      padding-bottom: 12px;
      border-bottom: 1px solid rgba(15,23,42,.08);
    }
    .panel-top h2{
      margin: 0;
      font-size: 15px;
      letter-spacing:.2px;
    }
    .panel-top p{
      margin: 6px 0 0;
      font-size: 12.8px;
      color: var(--muted);
      line-height:1.6;
    }

    .pulse-ring{
      width: 38px; height: 38px; border-radius: 14px;
      background: rgba(255,255,255,.76);
      border: 1px solid rgba(15,23,42,.10);
      display:flex; align-items:center; justify-content:center;
      position:relative;
      flex:0 0 auto;
    }
    .pulse-ring:before{
      content:"";
      position:absolute; inset:-6px;
      border-radius: 18px;
      border: 1px solid rgba(91,124,250,.35);
      animation: pulse 2.6s ease-in-out infinite;
    }
    .pulse-ring:after{
      content:"";
      width: 14px; height: 14px; border-radius: 50%;
      background: var(--grad);
      box-shadow: 0 0 0 4px rgba(91,124,250,.14);
    }
    @keyframes pulse{
      0%{transform: scale(.92); opacity:.35}
      50%{transform: scale(1.05); opacity:.7}
      100%{transform: scale(.92); opacity:.35}
    }

    .metrics{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      padding-top: 14px;
    }

    .metric{
      background: rgba(255,255,255,.66);
      border: 1px solid rgba(15,23,42,.10);
      border-radius: 16px;
      padding: 12px 12px 12px;
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
      position:relative;
      overflow:hidden;
      min-height: 88px;
    }
    .metric:hover{
      transform: translateY(-2px);
      box-shadow: 0 22px 56px rgba(17,24,39,.10);
      border-color: rgba(91,124,250,.28);
    }

    .metric .k{
      font-size: 22px;
      font-weight: 860;
      letter-spacing:-0.02em;
      margin: 0;
    }
    .metric .t{
      margin-top: 6px;
      font-size: 12.8px;
      color: var(--muted);
      line-height:1.45;
    }
    .metric .spark{
      position:absolute;
      right:-18px; top:-18px;
      width: 56px; height: 56px;
      border-radius: 50%;
      background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.9), rgba(255,255,255,0) 45%), rgba(91,124,250,.22);
      filter: blur(.2px);
      transform: rotate(10deg);
      pointer-events:none;
    }

    .hero-scroller{
      margin-top: 14px;
      background: rgba(255,255,255,.56);
      border: 1px solid rgba(15,23,42,.10);
      border-radius: 16px;
      padding: 12px;
    }
    .hero-scroller .row{
      display:flex; align-items:center; justify-content:space-between; gap: 10px;
    }
    .hero-scroller .row b{
      font-size: 13px;
      letter-spacing:.2px;
    }
    .seg{
      display:flex; align-items:center; gap: 8px; flex-wrap:wrap; justify-content:flex-end;
    }
    .seg span{
      font-size: 12.5px;
      color: var(--muted);
      padding: 7px 9px;
      border-radius: 999px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.66);
      transition: transform .18s ease;
    }
    .seg span.active{
      color: rgba(21,24,31,.95);
      border-color: rgba(91,124,250,.28);
      background: rgba(91,124,250,.10);
    }

    .flowline{
      margin-top: 10px;
      display:grid;
      grid-template-columns: 1fr;
      gap: 10px;
    }
    .flowitem{
      display:flex; align-items:flex-start; gap: 10px;
      padding: 10px 10px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.62);
      transition: transform .18s ease, border-color .18s ease;
    }
    .flowitem:hover{transform: translateY(-1px); border-color: rgba(91,124,250,.22)}
    .stepdot{
      width: 28px; height: 28px; border-radius: 11px;
      background: rgba(91,124,250,.12);
      border: 1px solid rgba(91,124,250,.22);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      color: rgba(32,201,151,.95);
      font-weight: 900;
      font-size: 13px;
    }
    .flowitem b{
      font-size: 13px;
    }
    .flowitem div{
      color: var(--muted);
      font-size: 12.6px;
      line-height:1.6;
      margin-top: 2px;
    }

    section{
      padding: 26px 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: 20px;
      letter-spacing: -.01em;
    }
    .section-head p{
      margin:0;
      color: var(--muted);
      font-size: 13.8px;
      line-height:1.7;
      max-width: 64ch;
    }
    .section-head .right-action{
      display:flex; gap: 10px; align-items:center; flex-wrap:wrap; justify-content:flex-end;
    }

    .card{
      background: rgba(255,255,255,.70);
      border: 1px solid rgba(15,23,42,.10);
      border-radius: var(--radius);
      box-shadow: 0 10px 30px rgba(17,24,39,.05);
    }

    .grid-3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .grid-4{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }
    .grid-2{
      display:grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }

    .service-card{
      padding: 16px;
      position:relative;
      overflow:hidden;
      transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
    }
    .service-card:hover{
      transform: translateY(-2px);
      border-color: rgba(91,124,250,.26);
      box-shadow: 0 22px 56px rgba(17,24,39,.10);
    }
    .service-icon{
      width: 40px; height: 40px; border-radius: 16px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.72);
      display:flex; align-items:center; justify-content:center;
      margin-bottom: 10px;
      position:relative;
    }
    .service-icon:before{
      content:"";
      position:absolute; inset:-10px;
      border-radius: 26px;
      background: radial-gradient(circle at 30% 30%, rgba(91,124,250,.18), rgba(91,124,250,0) 62%),
                  radial-gradient(circle at 70% 30%, rgba(32,201,151,.12), rgba(32,201,151,0) 62%);
      opacity:.9;
      pointer-events:none;
    }
    .service-card h3{
      margin: 0;
      font-size: 15.5px;
      letter-spacing:.1px;
    }
    .service-card p{
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 13.2px;
      line-height:1.7;
    }
    .service-tags{
      display:flex; flex-wrap:wrap; gap: 8px;
      margin-top: 12px;
    }
    .tag{
      font-size: 12.2px;
      color: rgba(21,24,31,.86);
      padding: 7px 9px;
      border-radius: 999px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.58);
    }
    .tag.hot{
      border-color: rgba(91,124,250,.22);
      background: rgba(91,124,250,.10);
    }

    .steps{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }
    .step-card{
      padding: 16px;
      position:relative;
      overflow:hidden;
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .step-card:hover{
      transform: translateY(-2px);
      border-color: rgba(32,201,151,.25);
      box-shadow: 0 22px 56px rgba(17,24,39,.10);
    }
    .step-num{
      display:flex; align-items:center; justify-content:space-between;
      gap: 10px;
      margin-bottom: 10px;
    }
    .step-num b{
      font-size: 13.5px;
      color: rgba(21,24,31,.90);
      font-weight: 900;
    }
    .step-badge{
      font-size: 12px;
      color: rgba(21,24,31,.88);
      padding: 7px 9px;
      border-radius: 999px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
    }
    .step-card h3{
      margin:0;
      font-size: 15.5px;
    }
    .step-card p{
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 13.2px;
      line-height:1.7;
    }

    .compare-wrap{
      padding: 14px;
    }
    .compare-grid{
      display:grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 14px;
      align-items:start;
    }
    .rating-card{
      padding: 18px;
      background:
        radial-gradient(900px 240px at 20% 0%, rgba(91,124,250,.18), rgba(91,124,250,0) 60%),
        linear-gradient(180deg, rgba(255,255,255,.80), rgba(255,255,255,.62));
      position:relative;
      overflow:hidden;
    }
    .rating-card .big{
      display:flex;
      align-items:flex-end;
      gap: 12px;
      margin-top: 10px;
    }
    .stars{
      display:flex; gap: 6px; align-items:center; margin-bottom: 6px;
    }
    .star{
      width: 18px; height: 18px;
      background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.95), rgba(255,255,255,0) 60%), #fbbf24;
      clip-path: polygon(50% 0%, 63% 34%, 98% 35%, 70% 57%, 79% 91%, 50% 72%, 21% 91%, 30% 57%, 2% 35%, 37% 34%);
      box-shadow: 0 10px 20px rgba(245,158,11,.25);
    }
    .rating-score{
      font-size: 42px;
      font-weight: 950;
      letter-spacing:-0.03em;
      line-height:1;
    }
    .rating-meta{
      color: var(--muted);
      font-size: 13px;
      line-height:1.6;
      margin-top: 8px;
    }
    .rating-list{
      margin-top: 12px;
      display:grid;
      gap: 10px;
    }
    .rating-item{
      display:flex; gap: 10px; align-items:flex-start;
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
    }
    .check{
      width: 22px; height: 22px; border-radius: 10px;
      background: rgba(16,185,129,.12);
      border: 1px solid rgba(16,185,129,.25);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      color: rgba(16,185,129,.95);
      font-weight: 900;
      font-size: 13px;
    }
    .rating-item b{font-size:13.2px}
    .rating-item div{
      color: var(--muted);
      font-size: 12.8px;
      line-height:1.6;
      margin-top: 2px;
    }

    .table-card{
      padding: 14px;
    }
    .table-wrap{
      overflow:auto;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.58);
    }
    table{
      width: 100%;
      border-collapse: collapse;
      min-width: 640px;
    }
    th,td{
      padding: 12px 12px;
      border-bottom: 1px solid rgba(15,23,42,.08);
      vertical-align: top;
      text-align:left;
      font-size: 13.2px;
      line-height:1.55;
    }
    th{
      position: sticky;
      top: 0;
      background: rgba(255,255,255,.86);
      z-index: 1;
      font-size: 12.8px;
      color: rgba(21,24,31,.86);
      border-bottom: 1px solid rgba(15,23,42,.10);
    }
    td strong{font-weight: 850}
    .pill{
      display:inline-flex;
      align-items:center;
      gap: 8px;
      padding: 7px 10px;
      border-radius: 999px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      white-space:nowrap;
    }
    .pill.ok{
      border-color: rgba(16,185,129,.25);
      background: rgba(16,185,129,.10);
    }
    .pill.brand{
      border-color: rgba(91,124,250,.26);
      background: rgba(91,124,250,.10);
    }

    .split{
      display:grid;
      grid-template-columns: .98fr 1.02fr;
      gap: 14px;
      align-items:start;
    }

    .network-card{
      padding: 16px;
      overflow:hidden;
      position:relative;
      background:
        radial-gradient(520px 260px at 0% 0%, rgba(32,201,151,.14), rgba(32,201,151,0) 60%),
        linear-gradient(180deg, rgba(255,255,255,.82), rgba(255,255,255,.62));
    }
    .network-card h3{
      margin:0;
      font-size: 16px;
    }
    .network-card p{
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 13.2px;
      line-height:1.7;
    }
    .geo-grid{
      margin-top: 12px;
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }
    .geo{
      padding: 12px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
    }
    .geo b{font-size:13.4px}
    .geo span{
      display:block;
      margin-top: 6px;
      color: var(--muted);
      font-size: 12.8px;
      line-height:1.55;
    }

    .timeline{
      padding: 16px;
    }
    .timeline .line{
      display:grid;
      gap: 12px;
      margin-top: 10px;
    }
    .titem{
      display:flex; gap: 12px; align-items:flex-start;
      padding: 12px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
    }
    .ticon{
      width: 30px; height: 30px; border-radius: 13px;
      background: rgba(91,124,250,.12);
      border: 1px solid rgba(91,124,250,.22);
      display:flex; align-items:center; justify-content:center;
      font-weight: 950;
      color: rgba(91,124,250,.98);
      flex:0 0 auto;
      margin-top: 1px;
    }
    .titem b{font-size:13.6px}
    .titem div{
      margin-top: 4px;
      color: var(--muted);
      font-size: 12.9px;
      line-height:1.65;
    }

    .tabs{
      display:flex; gap: 10px; flex-wrap:wrap;
      margin-top: 10px;
    }
    .tab{
      padding: 9px 10px;
      border-radius: 999px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      font-size: 13px;
      cursor:pointer;
      transition: transform .18s ease, border-color .18s ease, background .18s ease;
      user-select:none;
    }
    .tab:hover{transform: translateY(-1px); background: rgba(255,255,255,.90)}
    .tab.active{
      border-color: rgba(32,201,151,.25);
      background: rgba(32,201,151,.10);
      font-weight: 800;
    }

    .article-list{
      padding: 14px;
    }
    .article-head{
      display:flex; align-items:flex-end; justify-content:space-between; gap: 14px;
      margin-bottom: 12px;
    }
    .article-head h3{margin:0; font-size: 16px}
    .article-head p{margin:0; color: var(--muted); font-size: 13.2px; line-height:1.7}
    .articles{
      display:grid; gap: 10px;
    }
    .article{
      display:flex; align-items:flex-start; justify-content:space-between; gap: 12px;
      padding: 12px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
    }
    .article:hover{
      transform: translateY(-1px);
      border-color: rgba(91,124,250,.22);
      box-shadow: 0 18px 40px rgba(17,24,39,.08);
    }
    .article b{
      font-size: 13.8px;
      letter-spacing:.1px;
      display:block;
      margin-bottom: 6px;
    }
    .article .desc{
      color: var(--muted);
      font-size: 12.9px;
      line-height:1.6;
      max-width: 62ch;
    }
    .article a{
      display:inline-flex;
      align-items:center;
      gap: 8px;
      font-weight: 800;
      font-size: 13px;
      color: rgba(48,66,255,.95);
      padding: 8px 10px;
      border-radius: 12px;
      border: 1px solid rgba(48,66,255,.18);
      background: rgba(48,66,255,.07);
      flex: 0 0 auto;
      white-space:nowrap;
      transition: transform .18s ease, background .18s ease, border-color .18s ease;
    }
    .article a:hover{transform: translateY(-1px); background: rgba(48,66,255,.12); border-color: rgba(48,66,255,.28)}

    .form-card{
      padding: 16px;
    }
    form{
      display:grid;
      gap: 12px;
      margin-top: 10px;
    }
    .form-row{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    label{
      display:flex;
      flex-direction:column;
      gap: 8px;
      font-size: 13px;
      color: rgba(21,24,31,.90);
      font-weight: 700;
    }
    input, select, textarea{
      padding: 12px 12px;
      border-radius: 12px;
      border: 1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.78);
      font-size: 14px;
      color: rgba(21,24,31,.92);
      transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
    }
    textarea{min-height: 120px; resize: vertical}
    .form-foot{
      display:flex; gap: 12px; align-items:center; flex-wrap:wrap;
      justify-content:space-between;
      margin-top: 6px;
    }
    .form-foot .hint{
      color: var(--muted);
      font-size: 12.8px;
      line-height:1.6;
      max-width: 52ch;
    }
    .toast{
      position: fixed;
      left: 50%;
      transform: translateX(-50%);
      bottom: 18px;
      background: rgba(15,23,42,.92);
      color: #fff;
      padding: 12px 14px;
      border-radius: 14px;
      border: 1px solid rgba(255,255,255,.14);
      box-shadow: 0 24px 70px rgba(0,0,0,.22);
      z-index: 100;
      display:none;
      max-width: calc(100% - 20px);
      font-size: 13px;
      line-height:1.5;
    }

    .faq{
      padding: 14px;
    }
    .faq-list{
      display:grid;
      gap: 10px;
    }
    details.faq-item{
      border-radius: 16px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      padding: 0;
      overflow:hidden;
      transition: border-color .18s ease, transform .18s ease;
    }
    details.faq-item[open]{
      border-color: rgba(91,124,250,.24);
    }
    details.faq-item summary{
      cursor:pointer;
      list-style:none;
      padding: 14px 14px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap: 14px;
      user-select:none;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    .q{
      font-weight: 900;
      font-size: 14px;
      letter-spacing:.1px;
    }
    .chev{
      width: 34px; height: 34px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.66);
      display:flex; align-items:center; justify-content:center;
      transition: transform .2s ease, border-color .2s ease;
      flex:0 0 auto;
    }
    details[open] .chev{transform: rotate(180deg); border-color: rgba(91,124,250,.22)}
    .a{
      padding: 0 14px 14px;
      color: var(--muted);
      font-size: 13.4px;
      line-height:1.75;
    }

    .review-card{
      padding: 16px;
      display:flex;
      flex-direction:column;
      gap: 10px;
      min-height: 180px;
      position:relative;
      overflow:hidden;
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .review-card:hover{
      transform: translateY(-2px);
      border-color: rgba(32,201,151,.25);
      box-shadow: 0 22px 56px rgba(17,24,39,.10);
    }
    .review-top{
      display:flex; align-items:center; justify-content:space-between; gap: 12px;
    }
    .who{
      display:flex; align-items:center; gap: 10px;
    }
    .avatar{
      width: 38px; height: 38px; border-radius: 16px;
      border: 1px solid rgba(15,23,42,.10);
      background:
        radial-gradient(circle at 30% 30%, rgba(255,255,255,.95), rgba(255,255,255,0) 60%), rgba(91,124,250,.12);
      display:flex; align-items:center; justify-content:center;
      font-weight: 950;
      color: rgba(91,124,250,.98);
      letter-spacing:.2px;
    }
    .who b{
      font-size: 13.8px;
    }
    .who span{
      display:block;
      color: var(--muted);
      font-size: 12.6px;
      margin-top: 2px;
    }
    .review-stars{
      display:flex; gap: 4px; align-items:center;
      color: #f59e0b;
      font-weight: 900;
      font-size: 12.5px;
      white-space:nowrap;
    }
    .review-text{
      margin: 0;
      color: var(--muted);
      font-size: 13.2px;
      line-height:1.75;
    }
    .review-bottom{
      display:flex; flex-wrap:wrap; gap: 8px;
      margin-top:auto;
    }

    .case-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .case-card{
      padding: 16px;
      position:relative;
      overflow:hidden;
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .case-card:hover{
      transform: translateY(-2px);
      border-color: rgba(124,77,255,.22);
      box-shadow: 0 22px 56px rgba(17,24,39,.10);
    }
    .case-card h3{margin:0; font-size: 15.5px}
    .case-card p{margin: 8px 0 0; color: var(--muted); font-size: 13.2px; line-height:1.7}
    .case-metrics{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      margin-top: 12px;
    }
    .mini{
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
    }
    .mini b{
      font-size: 13.8px;
      letter-spacing:.1px;
    }
    .mini span{
      display:block;
      margin-top: 4px;
      color: var(--muted);
      font-size: 12.7px;
      line-height:1.5;
    }

    .tag-cloud{
      padding: 14px;
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items:start;
    }
    .cloud{
      border-radius: 16px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      padding: 14px;
    }
    .cloud h3{
      margin:0;
      font-size: 16px;
    }
    .cloud p{
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 13.2px;
      line-height:1.7;
    }
    .cloud-tags{
      margin-top: 12px;
      display:flex;
      flex-wrap:wrap;
      gap: 10px;
    }
    .cloud-tags a{
      border-radius: 999px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.68);
      padding: 9px 11px;
      font-size: 13px;
      color: rgba(21,24,31,.88);
      transition: transform .18s ease, border-color .18s ease, background .18s ease;
      white-space:nowrap;
    }
    .cloud-tags a:hover{transform: translateY(-1px); border-color: rgba(91,124,250,.22); background: rgba(91,124,250,.10)}

    .price-card{
      padding: 14px;
    }
    .price-grid{
      display:grid;
      grid-template-columns: 1fr;
      gap: 10px;
      margin-top: 10px;
    }
    .price-item{
      padding: 12px;
      border-radius: 16px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap: 12px;
    }
    .price-item b{font-size: 14.2px}
    .price-item div{
      color: var(--muted);
      font-size: 12.9px;
      line-height:1.65;
      margin-top: 5px;
    }
    .price-item .right{
      text-align:right;
      white-space:nowrap;
    }
    .price-item .right strong{
      font-size: 18px;
      letter-spacing:-0.02em;
    }
    .price-item .right span{
      display:block;
      margin-top: 4px;
      color: var(--muted);
      font-size: 12.6px;
    }

    .contact-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items:start;
    }
    .contact-card{
      padding: 16px;
    }
    .contact-card h3{margin:0; font-size:16px}
    .contact-card p{
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 13.2px;
      line-height:1.7;
    }
    .contact-list{
      margin-top: 12px;
      display:grid;
      gap: 10px;
    }
    .contact-item{
      display:flex; align-items:flex-start; gap: 10px;
      padding: 12px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
    }
    .contact-item svg{flex:0 0 auto; margin-top: 2px}
    .contact-item b{
      font-size: 13.8px;
      display:block;
    }
    .contact-item span{
      color: var(--muted);
      font-size: 12.9px;
      line-height:1.6;
      display:block;
      margin-top: 4px;
      word-break:break-word;
    }
    .wechat{
      display:flex; gap: 12px; align-items:center; margin-top: 12px;
      padding: 12px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
    }
    .wechat img{
      width: 68px;
      height: 68px;
      border-radius: 14px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.8);
      object-fit: cover;
    }
    .wechat div b{font-size: 13.8px}
    .wechat div span{
      display:block;
      color: var(--muted);
      font-size: 12.8px;
      margin-top: 4px;
      line-height:1.6;
    }

    .footer{
      padding: 20px 0 28px;
      margin-top: 6px;
      background: linear-gradient(180deg, rgba(255,255,255,0), rgba(243,246,255,.70) 18%, rgba(255,255,255,.0));
    }
    .footer-card{
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.74);
      border-radius: 22px;
      padding: 16px;
      box-shadow: 0 18px 60px rgba(17,24,39,.08);
    }
    .footer-top{
      display:flex;
      justify-content:space-between;
      align-items:flex-start;
      gap: 14px;
      flex-wrap:wrap;
    }
    .footer-brand{
      display:flex; gap: 12px; align-items:flex-start;
    }
    .footer-brand img{
      width: 42px; height: 42px;
      border-radius: 16px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.8);
      object-fit: contain;
    }
    .footer-brand b{
      font-size: 15px;
      display:block;
    }
    .footer-brand span{
      color: var(--muted);
      font-size: 12.9px;
      margin-top: 5px;
      display:block;
      line-height:1.6;
      max-width: 56ch;
    }
    .links-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px 14px;
      min-width: 320px;
      align-items:start;
    }
    .link-group b{
      font-size: 13.6px;
      display:block;
      margin-bottom: 6px;
    }
    .link-group a{
      display:block;
      color: rgba(21,24,31,.86);
      padding: 7px 9px;
      border-radius: 12px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      font-size: 13px;
      margin-top: 8px;
      transition: transform .18s ease, border-color .18s ease, background .18s ease;
      white-space:nowrap;
      width:fit-content;
    }
    .link-group a:hover{transform: translateY(-1px); border-color: rgba(91,124,250,.22); background: rgba(91,124,250,.10)}
    .footer-bottom{
      display:flex; align-items:center; justify-content:space-between; gap: 12px;
      margin-top: 14px;
      padding-top: 14px;
      border-top: 1px solid rgba(15,23,42,.10);
      flex-wrap:wrap;
    }
    .copyright{
      color: var(--muted);
      font-size: 12.8px;
      line-height:1.6;
    }
    .footer-actions{
      display:flex; gap: 10px; align-items:center; flex-wrap:wrap;
      justify-content:flex-end;
    }

    .float-kefu{
      position: fixed;
      right: 16px;
      bottom: 16px;
      z-index: 90;
      display:flex;
      flex-direction:column;
      gap: 10px;
      align-items:flex-end;
      pointer-events:none;
    }
    .float-btn{
      pointer-events:auto;
      width: 46px;
      height: 46px;
      border-radius: 18px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 18px 50px rgba(17,24,39,.14);
      display:flex;
      align-items:center;
      justify-content:center;
      cursor:pointer;
      transition: transform .18s ease, background .18s ease, border-color .18s ease;
      color: rgba(21,24,31,.92);
    }
    .float-btn:hover{transform: translateY(-2px); border-color: rgba(91,124,250,.26); background: rgba(255,255,255,.95)}
    .float-bubble{
      pointer-events:auto;
      width: 220px;
      border-radius: 18px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 28px 80px rgba(17,24,39,.18);
      overflow:hidden;
      transform-origin: 100% 100%;
      animation: popin .22s ease both;
    }
    @keyframes popin{
      from{opacity:0; transform: scale(.98) translateY(6px)}
      to{opacity:1; transform: scale(1) translateY(0)}
    }
    .bubble-head{
      padding: 12px 12px 10px;
      background: linear-gradient(135deg, rgba(91,124,250,.12), rgba(32,201,151,.10));
      border-bottom: 1px solid rgba(15,23,42,.10);
      display:flex; align-items:center; justify-content:space-between;
      gap: 10px;
    }
    .bubble-head b{font-size: 13.6px}
    .bubble-head button{
      border:none;
      background: rgba(255,255,255,.70);
      border: 1px solid rgba(15,23,42,.10);
      border-radius: 12px;
      width: 30px; height: 30px;
      cursor:pointer;
      transition: transform .18s ease, background .18s ease;
      font-weight: 900;
    }
    .bubble-head button:hover{transform: translateY(-1px); background: rgba(255,255,255,.95)}
    .bubble-body{
      padding: 12px;
      color: var(--muted);
      font-size: 12.9px;
      line-height:1.6;
      display:flex; gap: 12px; align-items:center;
    }
    .bubble-body img{
      width: 44px; height: 44px;
      border-radius: 16px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.9);
      object-fit: cover;
      flex:0 0 auto;
    }
    .bubble-body a{
      display:inline-flex;
      align-items:center;
      gap: 8px;
      font-weight: 900;
      font-size: 13px;
      color: rgba(48,66,255,.95);
      padding: 9px 11px;
      border-radius: 14px;
      border: 1px solid rgba(48,66,255,.18);
      background: rgba(48,66,255,.07);
      margin-top: 8px;
    }

    .backtop{
      position: fixed;
      left: 16px;
      bottom: 16px;
      z-index: 90;
      width: 46px; height: 46px;
      border-radius: 18px;
      border: 1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 18px 50px rgba(17,24,39,.14);
      display:flex;
      align-items:center;
      justify-content:center;
      cursor:pointer;
      opacity: 0;
      transform: translateY(8px);
      pointer-events:none;
      transition: opacity .2s ease, transform .2s ease, border-color .18s ease, background .18s ease;
      color: rgba(21,24,31,.92);
    }
    .backtop.show{
      opacity: 1;
      transform: translateY(0);
      pointer-events:auto;
    }
    .backtop:hover{border-color: rgba(91,124,250,.26); background: rgba(255,255,255,.95)}

    .anchor{
      scroll-margin-top: 88px;
    }

    .muted-note{
      color: var(--muted);
      font-size: 13px;
      line-height:1.7;
      margin: 0;
    }

    @media (max-width: 980px){
      .nav{display:none}
      .menu-btn{display:inline-flex}
      .mobile-drawer{display:block}
      .hero-grid{grid-template-columns: 1fr}
      .hero-right{order: 2}
      .hero-left{order: 1}
      .grid-3{grid-template-columns: 1fr}
      .grid-4{grid-template-columns: 1fr 1fr}
      .steps{grid-template-columns: 1fr 1fr}
      .compare-grid{grid-template-columns: 1fr}
      .split{grid-template-columns: 1fr}
      .case-grid{grid-template-columns: 1fr}
      .tag-cloud{grid-template-columns: 1fr}
      .contact-grid{grid-template-columns: 1fr}
      .form-row{grid-template-columns: 1fr}
      .links-grid{min-width: 0; width:100%}
      table{min-width: 560px}
      .float-bubble{width: 200px}
    }

    @media (prefers-reduced-motion: reduce){
      *{scroll-behavior:auto !important}
      .pulse-ring:before{animation:none}
    }

    html { scroll-behavior: smooth; }