:root{
      --bg:#fbf7ff;
      --surface:#ffffff;
      --text:#14161a;
      --muted:#5a616d;
      --brand:#7c2cff;
      --accent:#ff2d55;
      --accent2:#00a3ff;
      --line:rgba(20,22,26,.10);
      --shadow: 0 18px 45px rgba(18, 19, 26, .10);
      --shadow2: 0 10px 30px rgba(18, 19, 26, .08);
      --radius:18px;
      --radius2:26px;
      --container: 1140px;
      --pad: 18px;
      --focus: 0 0 0 3px rgba(124,44,255,.22), 0 0 0 1px rgba(124,44,255,.35) inset;
    }
    *{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", "Noto Sans", sans-serif;
      color:var(--text);
      background:
        radial-gradient(1100px 420px at 15% -10%, rgba(124,44,255,.18), rgba(124,44,255,0) 55%),
        radial-gradient(900px 320px at 80% 0%, rgba(255,45,85,.16), rgba(255,45,85,0) 55%),
        radial-gradient(780px 320px at 60% 110%, rgba(0,163,255,.14), rgba(0,163,255,0) 55%),
        linear-gradient(180deg, #fefcff 0%, var(--bg) 55%, #ffffff 120%);
    }
    a{color:inherit}
    .container{
      max-width:var(--container);
      margin:0 auto;
      padding:0 var(--pad);
    }
    .skip-link{
      position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden;
    }
    .skip-link:focus{
      left: var(--pad);
      top: 12px;
      width:auto; height:auto;
      z-index:9999;
      padding:10px 12px;
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:12px;
      box-shadow:var(--shadow2);
    }
    header{
      position:sticky;
      top:0;
      z-index:50;
      background: rgba(251,247,255,.72);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(20,22,26,.06);
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:12px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width: 220px;
    }
    .brand img{
      width:42px; height:42px;
      border-radius:14px;
      box-shadow: 0 10px 25px rgba(124,44,255,.18);
      border:1px solid rgba(124,44,255,.18);
      background: #fff;
      padding:6px;
    }
    .brand-name{
      display:flex;
      flex-direction:column;
      line-height:1.1;
    }
    .brand-name strong{
      font-size:14px;
      letter-spacing:.2px;
    }
    .brand-name span{
      font-size:12px;
      color:var(--muted);
      margin-top:4px;
    }
    nav{
      display:flex;
      align-items:center;
      gap:14px;
      flex-wrap:nowrap;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:14px;
      flex-wrap:nowrap;
    }
    .nav-links a{
      text-decoration:none;
      font-size:13px;
      padding:10px 10px;
      border-radius:12px;
      color: rgba(20,22,26,.86);
      border:1px solid transparent;
      transition: transform .15s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease;
      white-space:nowrap;
    }
    .nav-links a:hover{
      background: rgba(124,44,255,.08);
      border-color: rgba(124,44,255,.16);
      transform: translateY(-1px);
    }
    .nav-cta{
      display:flex; align-items:center; gap:10px;
      flex-shrink:0;
    }
    .btn{
      border:none;
      cursor:pointer;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      padding:11px 14px;
      border-radius:14px;
      text-decoration:none;
      font-weight:650;
      font-size:14px;
      transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease, opacity .15s ease;
      user-select:none;
    }
    .btn:focus{outline:none; box-shadow:var(--focus)}
    .btn-primary{
      background: linear-gradient(135deg, var(--brand) 0%, #a855f7 45%, #ff2d55 120%);
      color:#fff;
      box-shadow: 0 18px 40px rgba(124,44,255,.26);
      border:1px solid rgba(255,255,255,.25);
    }
    .btn-primary:hover{transform: translateY(-2px)}
    .btn-ghost{
      background: rgba(255,255,255,.78);
      border:1px solid rgba(20,22,26,.10);
      color: rgba(20,22,26,.90);
    }
    .btn-ghost:hover{
      transform: translateY(-2px);
      box-shadow: 0 12px 25px rgba(18,19,26,.08);
      border-color: rgba(124,44,255,.18);
    }
    .icon{
      width:18px; height:18px;
      display:inline-block;
    }
    .mobile-toggle{
      display:none;
      width:44px; height:44px;
      border-radius:14px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.78);
      cursor:pointer;
      align-items:center;
      justify-content:center;
    }
    .mobile-toggle:focus{outline:none; box-shadow:var(--focus)}
    .hamburger{
      width:18px; height:12px; position:relative;
    }
    .hamburger span{
      position:absolute; left:0; right:0;
      height:2px; border-radius:2px;
      background: rgba(20,22,26,.86);
      transition: transform .18s ease, top .18s ease, opacity .18s ease, background .18s ease;
    }
    .hamburger span:nth-child(1){top:0}
    .hamburger span:nth-child(2){top:5px}
    .hamburger span:nth-child(3){top:10px}
    .mobile-toggle[data-open="true"] .hamburger span:nth-child(1){top:5px; transform: rotate(45deg)}
    .mobile-toggle[data-open="true"] .hamburger span:nth-child(2){opacity:0}
    .mobile-toggle[data-open="true"] .hamburger span:nth-child(3){top:5px; transform: rotate(-45deg)}
    .mobile-panel{
      display:none;
      border-top:1px solid rgba(20,22,26,.06);
      padding:12px 0 16px;
    }
    .mobile-panel[data-open="true"]{display:block}
    .mobile-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
    }
    .mobile-grid a{
      text-decoration:none;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.78);
      padding:12px 12px;
      border-radius:16px;
      font-size:13px;
      color: rgba(20,22,26,.88);
      transition: transform .15s ease, border-color .15s ease, background .15s ease;
    }
    .mobile-grid a:hover{
      transform: translateY(-2px);
      border-color: rgba(124,44,255,.20);
      background: rgba(124,44,255,.06);
    }

    main{padding: 18px 0 0}
    .hero{
      position:relative;
      padding: 34px 0 18px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 18px;
      align-items:stretch;
    }
    .hero-left{
      padding: 22px 0 12px;
    }
    .eyebrow{
      display:flex; align-items:center; gap:10px; flex-wrap:wrap;
      margin-bottom:12px;
    }
    .pill{
      display:inline-flex; align-items:center; gap:8px;
      padding:9px 12px;
      border-radius:999px;
      border:1px solid rgba(124,44,255,.22);
      background: rgba(124,44,255,.08);
      color: rgba(60,20,140,.96);
      font-weight:650;
      font-size:13px;
    }
    .pill .dot{
      width:8px; height:8px; border-radius:50%;
      background: linear-gradient(135deg, var(--brand), var(--accent));
      box-shadow: 0 0 0 4px rgba(124,44,255,.14);
    }
    .pill-alt{
      border-color: rgba(255,45,85,.22);
      background: rgba(255,45,85,.08);
      color: rgba(150,10,45,.95);
    }
    h1{
      margin: 0 0 12px;
      font-size: clamp(26px, 3.2vw, 40px);
      letter-spacing: -0.6px;
      line-height: 1.12;
    }
    .hero-sub{
      color: rgba(20,22,26,.74);
      font-size: 15px;
      line-height: 1.65;
      margin: 0 0 18px;
      max-width: 56ch;
    }
    .hero-actions{
      display:flex; gap:12px; flex-wrap:wrap; align-items:center;
      margin: 14px 0 12px;
    }
    .btn-secondary{
      background: rgba(20,22,26,.03);
      border:1px solid rgba(20,22,26,.10);
      color: rgba(20,22,26,.92);
    }
    .btn-secondary:hover{
      border-color: rgba(0,163,255,.22);
      box-shadow: 0 12px 26px rgba(0,163,255,.12);
      transform: translateY(-2px);
    }
    .hero-meta{
      display:flex;
      gap:14px;
      margin-top: 12px;
      flex-wrap:wrap;
    }
    .meta-item{
      display:flex; align-items:center; gap:10px;
      padding:10px 12px;
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.70);
      border-radius: 16px;
      min-width: 190px;
    }
    .meta-icon{
      width:30px; height:30px; border-radius:12px;
      background: linear-gradient(135deg, rgba(124,44,255,.16), rgba(255,45,85,.16));
      border:1px solid rgba(124,44,255,.18);
      display:flex; align-items:center; justify-content:center;
    }
    .meta-item strong{
      font-size:13px;
      display:block;
      margin-bottom:3px;
    }
    .meta-item span{
      font-size:12px;
      color: var(--muted);
      display:block;
    }
    .hero-right{
      border-radius: var(--radius2);
      border:1px solid rgba(20,22,26,.08);
      background: linear-gradient(180deg, rgba(255,255,255,.76) 0%, rgba(255,255,255,.56) 100%);
      box-shadow: var(--shadow2);
      padding: 18px;
      position:relative;
      overflow:hidden;
    }
    .hero-right:before{
      content:"";
      position:absolute; inset:-2px -2px auto -2px;
      height: 180px;
      background:
        radial-gradient(220px 120px at 20% 40%, rgba(124,44,255,.22), rgba(124,44,255,0) 60%),
        radial-gradient(240px 140px at 70% 30%, rgba(255,45,85,.20), rgba(255,45,85,0) 65%),
        radial-gradient(220px 120px at 55% 85%, rgba(0,163,255,.16), rgba(0,163,255,0) 60%);
      pointer-events:none;
    }
    .right-top{
      position:relative;
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      margin-bottom: 14px;
    }
    .signal{
      display:flex; flex-direction:column; gap:8px;
      padding: 12px 12px;
      border-radius: 16px;
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.66);
      flex:1;
    }
    .signal-title{
      display:flex; align-items:center; gap:10px;
    }
    .chip{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius:999px;
      background: rgba(124,44,255,.10);
      border:1px solid rgba(124,44,255,.18);
      font-weight:700;
      font-size:12px;
      color: rgba(74,24,170,.95);
      white-space:nowrap;
    }
    .chip .pulse{
      width:8px; height:8px; border-radius:50%;
      background: var(--accent);
      box-shadow: 0 0 0 0 rgba(255,45,85,.35);
      animation: pulse 1.6s ease-in-out infinite;
    }
    @keyframes pulse{
      0%{box-shadow:0 0 0 0 rgba(255,45,85,.35)}
      65%{box-shadow:0 0 0 10px rgba(255,45,85,0)}
      100%{box-shadow:0 0 0 0 rgba(255,45,85,0)}
    }
    .signal h2{
      font-size: 15px;
      margin: 0;
      line-height:1.25;
      letter-spacing:-.2px;
    }
    .signal p{
      margin:0;
      color: var(--muted);
      font-size: 12.5px;
      line-height:1.5;
    }
    .ratio-card{
      display:flex;
      flex-direction:column;
      gap:10px;
      padding: 12px;
      border-radius: 18px;
      border:1px dashed rgba(124,44,255,.28);
      background: rgba(124,44,255,.06);
      min-width: 150px;
    }
    .ratio-card strong{font-size:12.5px}
    .ratio-row{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      font-size:12px;
      color: rgba(20,22,26,.78);
    }
    .ratio-meter{
      height: 8px;
      border-radius:999px;
      background: rgba(20,22,26,.07);
      overflow:hidden;
      border:1px solid rgba(20,22,26,.06);
    }
    .ratio-meter i{
      display:block;
      height:100%;
      width: 72%;
      background: linear-gradient(90deg, var(--accent), var(--brand), var(--accent2));
      border-radius:999px;
      transform-origin:left;
      animation: meter 2.4s ease-in-out infinite;
    }
    @keyframes meter{
      0%{transform: scaleX(.82)}
      50%{transform: scaleX(1)}
      100%{transform: scaleX(.84)}
    }
    .carousel-sim{
      position:relative;
      border-radius: 20px;
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.66);
      padding: 14px;
      overflow:hidden;
      margin-top: 10px;
    }
    .carousel-sim:after{
      content:"";
      position:absolute; inset:-60px -80px auto -80px;
      height: 210px;
      background:
        conic-gradient(from 120deg, rgba(124,44,255,.22), rgba(255,45,85,.18), rgba(0,163,255,.16), rgba(124,44,255,.22));
      filter: blur(14px);
      opacity:.55;
      pointer-events:none;
    }
    .sim-header{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      position:relative;
      margin-bottom: 12px;
      z-index:1;
    }
    .sim-header strong{font-size:13px}
    .sim-tags{
      display:flex; gap:8px; flex-wrap:wrap; justify-content:flex-end;
    }
    .tag{
      font-size:12px;
      padding:7px 10px;
      border-radius:999px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.75);
      color: rgba(20,22,26,.78);
      white-space:nowrap;
    }
    .sim-canvas{
      position:relative;
      z-index:1;
      border-radius: 18px;
      border: 1px solid rgba(20,22,26,.08);
      background:
        linear-gradient(180deg, rgba(255,255,255,.75), rgba(255,255,255,.50));
      padding: 12px;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .sim-frame{
      border-radius: 16px;
      border:1px solid rgba(20,22,26,.08);
      background:
        radial-gradient(120px 60px at 20% 15%, rgba(124,44,255,.22), rgba(124,44,255,0) 60%),
        radial-gradient(140px 70px at 80% 20%, rgba(255,45,85,.20), rgba(255,45,85,0) 60%),
        radial-gradient(130px 70px at 50% 90%, rgba(0,163,255,.16), rgba(0,163,255,0) 65%),
        linear-gradient(180deg, rgba(255,255,255,.76), rgba(255,255,255,.52));
      padding: 12px;
      overflow:hidden;
    }
    .frame-top{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom: 10px;
    }
    .frame-badge{
      display:inline-flex; align-items:center; gap:8px;
      font-weight:700;
      font-size:12px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(124,44,255,.22);
      background: rgba(124,44,255,.10);
      color: rgba(74,24,170,.95);
    }
    .frame-steps{
      display:flex; gap:8px; align-items:center;
    }
    .step-dot{
      width:10px; height:10px; border-radius:50%;
      background: rgba(20,22,26,.12);
      border:1px solid rgba(20,22,26,.10);
      transition: transform .2s ease, background .2s ease;
    }
    .step-dot[data-active="true"]{
      background: linear-gradient(135deg, var(--brand), var(--accent));
      border-color: rgba(124,44,255,.35);
      transform: scale(1.08);
    }
    .frame-body{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
      align-items:stretch;
    }
    .sim-tile{
      border-radius: 14px;
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.68);
      padding: 10px 10px;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      min-height: 96px;
      display:flex; flex-direction:column; justify-content:space-between;
    }
    .sim-tile:hover{
      transform: translateY(-2px);
      box-shadow: 0 16px 32px rgba(18,19,26,.10);
      border-color: rgba(124,44,255,.18);
    }
    .tile-title{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      font-weight:800;
      letter-spacing:-.2px;
      font-size:12.5px;
    }
    .tile-title .mini{
      width:26px; height:26px; border-radius:12px;
      display:flex; align-items:center; justify-content:center;
      border:1px solid rgba(20,22,26,.08);
      background: rgba(20,22,26,.02);
    }
    .tile-desc{
      color: rgba(20,22,26,.72);
      font-size:12px;
      line-height:1.5;
      margin-top: 8px;
    }
    .tile-footer{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-top: 10px;
    }
    .ratio-chip{
      font-size:11.5px;
      padding:7px 9px;
      border-radius:999px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.76);
      color: rgba(20,22,26,.78);
      white-space:nowrap;
    }
    .tile-progress{
      width:86px; height:8px;
      border-radius:999px;
      background: rgba(20,22,26,.08);
      overflow:hidden;
      border:1px solid rgba(20,22,26,.06);
    }
    .tile-progress i{
      display:block; height:100%;
      width: 62%;
      border-radius:999px;
      background: linear-gradient(90deg, var(--accent2), var(--brand));
      transform-origin:left;
      animation: prog 2.2s ease-in-out infinite;
    }
    @keyframes prog{
      0%{transform:scaleX(.85)}
      50%{transform:scaleX(1)}
      100%{transform:scaleX(.88)}
    }
    .sim-controls{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-top: 12px;
      position:relative;
      z-index:1;
    }
    .control-left{
      display:flex; align-items:center; gap:10px; flex-wrap:wrap;
    }
    .small-switch{
      display:flex; align-items:center; gap:8px;
      font-size:12.5px;
      color: rgba(20,22,26,.76);
      user-select:none;
    }
    .switch{
      width:46px; height:26px;
      border-radius:999px;
      background: rgba(20,22,26,.10);
      border:1px solid rgba(20,22,26,.10);
      position:relative;
      cursor:pointer;
      transition: background .15s ease, border-color .15s ease;
      flex-shrink:0;
    }
    .switch i{
      position:absolute; top:3px; left:3px;
      width:20px; height:20px; border-radius:50%;
      background: #fff;
      box-shadow: 0 10px 18px rgba(18,19,26,.16);
      transition: transform .18s ease, background .15s ease;
      border:1px solid rgba(20,22,26,.08);
    }
    .switch[data-on="true"]{
      background: rgba(124,44,255,.18);
      border-color: rgba(124,44,255,.22);
    }
    .switch[data-on="true"] i{
      transform: translateX(20px);
      background: linear-gradient(135deg, var(--brand), #ff2d55);
      border-color: rgba(255,255,255,.35);
    }
    .sim-cta{
      display:flex; gap:10px; align-items:center;
    }
    .btn-mini{
      padding:10px 12px;
      border-radius:14px;
      font-size:13px;
    }

    section{
      padding: 26px 0;
    }
    .section-head{
      display:flex; align-items:flex-end; justify-content:space-between; gap:12px;
      margin-bottom: 14px;
    }
    .section-head h2{
      margin:0;
      font-size: 22px;
      letter-spacing:-.4px;
      line-height:1.25;
    }
    .section-head p{
      margin:0;
      color: rgba(20,22,26,.70);
      max-width: 60ch;
      line-height:1.6;
      font-size: 14px;
    }
    .divider{
      height:1px;
      background: linear-gradient(90deg, rgba(124,44,255,.20), rgba(255,45,85,.16), rgba(0,163,255,.16));
      opacity:.7;
      margin: 14px 0 0;
    }

    .grid-3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .grid-4{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
    }
    .card{
      border-radius: var(--radius);
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.72);
      box-shadow: 0 14px 35px rgba(18,19,26,.06);
      overflow:hidden;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
    }
    .card:hover{
      transform: translateY(-3px);
      box-shadow: 0 20px 45px rgba(18,19,26,.10);
      border-color: rgba(124,44,255,.18);
    }
    .card-pad{padding: 16px}
    .card h3{
      margin: 0 0 8px;
      font-size: 15px;
      letter-spacing:-.2px;
    }
    .card p{
      margin:0;
      color: rgba(20,22,26,.72);
      font-size: 13.5px;
      line-height: 1.6;
    }
    .card-icon{
      width:42px; height:42px;
      border-radius:16px;
      display:flex; align-items:center; justify-content:center;
      border:1px solid rgba(20,22,26,.08);
      background: rgba(20,22,26,.02);
      margin-bottom: 12px;
      position:relative;
      overflow:hidden;
    }
    .card-icon:before{
      content:"";
      position:absolute; inset:-20px;
      background: conic-gradient(from 180deg, rgba(124,44,255,.20), rgba(255,45,85,.16), rgba(0,163,255,.16), rgba(124,44,255,.20));
      filter: blur(12px);
      opacity:.7;
    }
    .card-icon svg{position:relative; z-index:1}
    .list{
      margin: 12px 0 0;
      padding: 0;
      list-style:none;
      display:flex; flex-direction:column; gap:10px;
    }
    .list li{
      display:flex; gap:10px; align-items:flex-start;
      color: rgba(20,22,26,.78);
      font-size: 13.5px;
      line-height:1.5;
    }
    .check{
      width:18px; height:18px;
      border-radius:7px;
      background: rgba(124,44,255,.12);
      border:1px solid rgba(124,44,255,.18);
      display:flex; align-items:center; justify-content:center;
      flex-shrink:0;
      margin-top:1px;
    }

    .timeline{
      display:grid;
      grid-template-columns: 1fr;
      gap: 12px;
    }
    .step{
      display:grid;
      grid-template-columns: 120px 1fr;
      gap: 14px;
      align-items:start;
      padding: 16px;
      border-radius: var(--radius);
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.72);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .step:hover{
      transform: translateY(-3px);
      box-shadow: 0 18px 40px rgba(18,19,26,.10);
      border-color: rgba(255,45,85,.16);
    }
    .step-num{
      display:flex; align-items:center; justify-content:flex-start; gap:10px;
    }
    .step-num .badge{
      width:44px; height:44px;
      border-radius:16px;
      background: linear-gradient(135deg, rgba(255,45,85,.16), rgba(124,44,255,.16));
      border:1px solid rgba(124,44,255,.20);
      display:flex; align-items:center; justify-content:center;
      font-weight:900;
      letter-spacing:-.3px;
      color: rgba(72,18,160,.95);
    }
    .step-num .label{
      display:flex; flex-direction:column;
      line-height:1.2;
    }
    .step-num .label strong{font-size:13px}
    .step-num .label span{font-size:12px; color:var(--muted); margin-top:4px}
    .step-content h3{
      margin: 2px 0 8px;
      font-size: 15.5px;
      letter-spacing:-.2px;
    }
    .step-content p{
      margin:0;
      color: rgba(20,22,26,.72);
      font-size: 13.5px;
      line-height:1.65;
    }
    .step-content .bul{
      margin: 10px 0 0;
      padding: 0;
      list-style:none;
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .bul li{
      font-size: 12.5px;
      padding: 8px 10px;
      border-radius: 999px;
      border: 1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.78);
      color: rgba(20,22,26,.78);
    }

    .compare-wrap{
      border-radius: var(--radius2);
      border:1px solid rgba(20,22,26,.08);
      background: linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.60));
      box-shadow: var(--shadow2);
      overflow:hidden;
    }
    .compare-top{
      padding: 16px;
      display:flex; align-items:flex-start; justify-content:space-between; gap: 14px;
      border-bottom:1px solid rgba(20,22,26,.06);
    }
    .rating{
      display:flex; align-items:center; gap:12px;
    }
    .stars{
      display:flex; gap:4px;
    }
    .star{
      width:18px; height:18px;
      fill: rgba(255,45,85,.98);
      filter: drop-shadow(0 10px 18px rgba(255,45,85,.16));
    }
    .rating strong{font-size:14.5px}
    .rating span{display:block; font-size:12.5px; color:var(--muted); margin-top:4px}
    .score{
      display:flex; flex-direction:column; align-items:flex-end;
      min-width: 160px;
    }
    .score b{
      font-size: 34px;
      letter-spacing:-.8px;
      line-height:1;
      background: linear-gradient(135deg, var(--brand), var(--accent));
      -webkit-background-clip:text;
      background-clip:text;
      color: transparent;
      filter: drop-shadow(0 14px 26px rgba(124,44,255,.16));
    }
    .score small{
      color: rgba(20,22,26,.70);
      margin-top:8px;
      font-size:12.5px;
    }
    .compare-table-wrap{
      padding: 14px 16px 18px;
      overflow:auto;
    }
    table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      min-width: 860px;
      background: rgba(255,255,255,.75);
      border:1px solid rgba(20,22,26,.08);
      border-radius: 18px;
      overflow:hidden;
    }
    th, td{
      padding: 12px 12px;
      border-bottom:1px solid rgba(20,22,26,.06);
      font-size: 13.5px;
      vertical-align:top;
    }
    th{
      background: linear-gradient(135deg, rgba(124,44,255,.14), rgba(255,45,85,.10));
      color: rgba(20,22,26,.90);
      text-align:left;
      font-weight:850;
    }
    tr:last-child td{border-bottom:none}
    td:first-child{font-weight:750}
    .mark{
      display:inline-flex; align-items:center; gap:8px;
      padding: 7px 10px;
      border-radius: 999px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.78);
      color: rgba(20,22,26,.80);
      white-space:nowrap;
    }
    .mark.good{
      border-color: rgba(124,44,255,.20);
      background: rgba(124,44,255,.08);
    }
    .mark.warn{
      border-color: rgba(20,22,26,.10);
      background: rgba(20,22,26,.02);
      color: rgba(20,22,26,.70);
    }

    .carousel-case{
      display:grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 14px;
      align-items:stretch;
    }
    .case-left{
      border-radius: var(--radius2);
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.70);
      box-shadow: var(--shadow2);
      padding: 16px;
      overflow:hidden;
      position:relative;
    }
    .case-left:before{
      content:"";
      position:absolute; inset:-120px -120px auto -120px;
      height: 240px;
      background:
        radial-gradient(260px 140px at 20% 40%, rgba(255,45,85,.18), rgba(255,45,85,0) 60%),
        radial-gradient(260px 140px at 80% 20%, rgba(124,44,255,.18), rgba(124,44,255,0) 60%),
        radial-gradient(260px 140px at 55% 95%, rgba(0,163,255,.14), rgba(0,163,255,0) 60%);
      pointer-events:none;
    }
    .case-left .inner{position:relative; z-index:1}
    .case-left h3{
      margin:0 0 8px;
      font-size: 16px;
      letter-spacing:-.2px;
    }
    .case-left p{
      margin:0 0 14px;
      color: rgba(20,22,26,.72);
      font-size: 13.5px;
      line-height: 1.7;
    }
    .case-list{
      list-style:none;
      margin:0;
      padding:0;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .case-item{
      border-radius: 16px;
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.78);
      padding: 12px;
      display:flex;
      align-items:flex-start;
      gap:12px;
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }
    .case-item:hover{
      transform: translateY(-2px);
      border-color: rgba(124,44,255,.18);
      box-shadow: 0 16px 34px rgba(18,19,26,.10);
    }
    .case-item .k{
      width:42px; height:42px;
      border-radius:16px;
      border:1px solid rgba(20,22,26,.08);
      display:flex; align-items:center; justify-content:center;
      background: rgba(20,22,26,.02);
      flex-shrink:0;
    }
    .case-item strong{
      display:block;
      font-size:13.5px;
      margin-bottom:4px;
    }
    .case-item span{
      color: rgba(20,22,26,.70);
      font-size:12.8px;
      line-height:1.55;
      display:block;
    }
    .case-right{
      display:flex;
      flex-direction:column;
      gap: 12px;
    }
    .case-card{
      border-radius: var(--radius2);
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.70);
      box-shadow: var(--shadow2);
      padding: 16px;
      overflow:hidden;
    }
    .case-card h3{
      margin:0 0 8px;
      font-size: 16px;
      letter-spacing:-.2px;
    }
    .case-card .sub{
      margin:0 0 12px;
      color: rgba(20,22,26,.72);
      font-size: 13.5px;
      line-height:1.65;
    }
    .badge-row{
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .badge-soft{
      padding: 9px 11px;
      border-radius:999px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.78);
      color: rgba(20,22,26,.78);
      font-size: 12.7px;
      font-weight:650;
    }
    .banner-strip{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 12px;
    }
    .mini-banner{
      border-radius: 18px;
      border:1px solid rgba(20,22,26,.08);
      background: linear-gradient(135deg, rgba(124,44,255,.10), rgba(255,45,85,.08));
      padding: 14px;
    }
    .mini-banner:nth-child(2){
      background: linear-gradient(135deg, rgba(0,163,255,.10), rgba(124,44,255,.08));
    }
    .mini-banner strong{
      display:block;
      font-size: 13.5px;
      margin-bottom:6px;
      letter-spacing:-.2px;
    }
    .mini-banner span{
      color: rgba(20,22,26,.72);
      font-size: 12.8px;
      line-height:1.6;
      display:block;
    }

    .form-grid{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 14px;
      align-items:stretch;
    }
    .form-card{
      border-radius: var(--radius2);
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.70);
      box-shadow: var(--shadow2);
      padding: 16px;
      overflow:hidden;
    }
    .form-card h3{
      margin:0 0 8px;
      font-size: 16px;
      letter-spacing:-.2px;
    }
    .form-card p{
      margin:0 0 14px;
      color: rgba(20,22,26,.72);
      font-size: 13.5px;
      line-height: 1.7;
    }
    form{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .field{
      display:flex;
      flex-direction:column;
      gap:8px;
    }
    .field.wide{grid-column: 1 / -1}
    label{
      font-size: 12.8px;
      color: rgba(20,22,26,.76);
      font-weight:650;
    }
    input, select, textarea{
      width:100%;
      padding: 12px 12px;
      border-radius: 14px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.86);
      color: rgba(20,22,26,.92);
      font-size: 14px;
      transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
    }
    textarea{min-height: 120px; resize:vertical}
    input:focus, select:focus, textarea:focus{
      outline:none;
      border-color: rgba(124,44,255,.30);
      box-shadow: var(--focus);
    }
    .submit-row{
      grid-column: 1 / -1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap: 12px;
      flex-wrap:wrap;
      margin-top: 2px;
    }
    .hint{
      color: rgba(20,22,26,.66);
      font-size: 12.5px;
      line-height:1.6;
      max-width: 52ch;
    }
    .toast{
      position:fixed;
      left:50%;
      bottom:18px;
      transform: translateX(-50%) translateY(20px);
      background: rgba(20,22,26,.88);
      color: #fff;
      padding: 12px 14px;
      border-radius: 16px;
      box-shadow: 0 18px 40px rgba(18,19,26,.20);
      opacity:0;
      pointer-events:none;
      transition: opacity .2s ease, transform .2s ease;
      z-index: 999;
      max-width: calc(100vw - 24px);
      font-size: 13.5px;
      line-height:1.4;
    }
    .toast[data-show="true"]{
      opacity:1;
      transform: translateX(-50%) translateY(0);
    }
    .aside-network{
      display:flex;
      flex-direction:column;
      gap: 12px;
    }
    .aside-card{
      border-radius: var(--radius2);
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.70);
      box-shadow: var(--shadow2);
      padding: 16px;
      overflow:hidden;
      position:relative;
    }
    .aside-card:before{
      content:"";
      position:absolute;
      inset:-120px auto auto -120px;
      width: 260px; height: 260px;
      background:
        radial-gradient(120px 120px at 60% 40%, rgba(124,44,255,.22), rgba(124,44,255,0) 60%),
        radial-gradient(140px 120px at 45% 70%, rgba(255,45,85,.18), rgba(255,45,85,0) 60%);
      pointer-events:none;
    }
    .aside-card .inner{position:relative; z-index:1}
    .aside-card h3{
      margin:0 0 10px;
      font-size: 16px;
      letter-spacing:-.2px;
    }
    .kpi-row{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }
    .kpi{
      border-radius: 18px;
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.78);
      padding: 12px;
    }
    .kpi b{
      display:block;
      font-size: 18px;
      letter-spacing:-.5px;
      background: linear-gradient(135deg, var(--brand), var(--accent));
      -webkit-background-clip:text;
      background-clip:text;
      color: transparent;
    }
    .kpi span{
      display:block;
      margin-top: 6px;
      color: rgba(20,22,26,.72);
      font-size: 12.8px;
      line-height:1.5;
    }
    .net-list{
      margin: 10px 0 0;
      padding: 0;
      list-style:none;
      display:flex;
      flex-wrap:wrap;
      gap: 10px;
    }
    .net-list li{
      padding: 9px 11px;
      border-radius: 999px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.78);
      color: rgba(20,22,26,.78);
      font-weight:650;
      font-size: 12.7px;
    }

    .faq{
      display:grid;
      grid-template-columns: 1fr;
      gap: 10px;
    }
    .faq-item{
      border-radius: var(--radius2);
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.72);
      box-shadow: 0 12px 30px rgba(18,19,26,.06);
      overflow:hidden;
    }
    .faq-q{
      width:100%;
      text-align:left;
      border:none;
      background: transparent;
      cursor:pointer;
      padding: 14px 16px;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap: 12px;
    }
    .faq-q:focus{outline:none; box-shadow: var(--focus)}
    .faq-q strong{
      font-size: 14.2px;
      letter-spacing:-.2px;
      line-height:1.45;
    }
    .chev{
      width:34px; height:34px;
      border-radius:14px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.78);
      display:flex; align-items:center; justify-content:center;
      flex-shrink:0;
      transition: transform .2s ease;
    }
    .faq-item[data-open="true"] .chev{transform: rotate(180deg)}
    .faq-a{
      max-height:0;
      overflow:hidden;
      transition: max-height .25s ease;
    }
    .faq-item[data-open="true"] .faq-a{max-height: 260px}
    .faq-a .inner{
      padding: 0 16px 14px;
      color: rgba(20,22,26,.72);
      font-size: 13.5px;
      line-height:1.7;
    }

    .reviews{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
    }
    .review{
      border-radius: var(--radius2);
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.72);
      box-shadow: 0 12px 30px rgba(18,19,26,.06);
      padding: 16px;
      overflow:hidden;
      position:relative;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .review:hover{
      transform: translateY(-3px);
      box-shadow: 0 20px 45px rgba(18,19,26,.10);
      border-color: rgba(255,45,85,.16);
    }
    .review:before{
      content:"";
      position:absolute; inset:-80px auto auto -90px;
      width: 220px; height: 220px;
      background:
        radial-gradient(120px 100px at 30% 30%, rgba(255,45,85,.18), rgba(255,45,85,0) 60%),
        radial-gradient(140px 100px at 70% 40%, rgba(124,44,255,.18), rgba(124,44,255,0) 62%);
      pointer-events:none;
    }
    .review .inner{position:relative; z-index:1}
    .review-top{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      margin-bottom: 10px;
    }
    .avatar{
      width:44px; height:44px;
      border-radius:18px;
      border:1px solid rgba(20,22,26,.08);
      background: linear-gradient(135deg, rgba(124,44,255,.16), rgba(0,163,255,.12));
      display:flex; align-items:center; justify-content:center;
      font-weight:900;
      letter-spacing:-.2px;
      color: rgba(20,22,26,.88);
    }
    .who strong{display:block; font-size:13.5px}
    .who span{display:block; margin-top:4px; font-size:12.5px; color:var(--muted)}
    .review p{
      margin:0;
      color: rgba(20,22,26,.72);
      font-size: 13.5px;
      line-height:1.7;
    }

    .article-grid{
      display:grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 12px;
    }
    .article{
      border-radius: var(--radius2);
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.72);
      box-shadow: 0 12px 30px rgba(18,19,26,.06);
      padding: 16px;
      display:flex; flex-direction:column; gap:10px;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .article:hover{
      transform: translateY(-3px);
      box-shadow: 0 20px 45px rgba(18,19,26,.10);
      border-color: rgba(0,163,255,.18);
    }
    .article .meta{
      display:flex; gap:10px; align-items:center; justify-content:space-between;
    }
    .badge{
      font-size:12px;
      padding: 7px 10px;
      border-radius:999px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.78);
      color: rgba(20,22,26,.78);
      white-space:nowrap;
      font-weight:650;
    }
    .article a{
      text-decoration:none;
      font-weight:850;
      letter-spacing:-.2px;
      line-height:1.35;
      color: rgba(20,22,26,.92);
      font-size: 14.5px;
    }
    .article .desc{
      color: rgba(20,22,26,.72);
      font-size: 13.3px;
      line-height:1.65;
      margin: 0;
      flex:1;
    }
    .article .foot{
      display:flex; justify-content:space-between; align-items:center; gap:10px; flex-wrap:wrap;
      color: rgba(20,22,26,.66);
      font-size: 12.5px;
    }

    .tagcloud{
      display:flex; flex-wrap:wrap; gap:10px;
      border-radius: var(--radius2);
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.72);
      box-shadow: 0 12px 30px rgba(18,19,26,.06);
      padding: 16px;
    }
    .tagcloud a{
      text-decoration:none;
      padding: 9px 11px;
      border-radius:999px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.80);
      color: rgba(20,22,26,.78);
      font-size: 12.8px;
      font-weight:650;
      transition: transform .15s ease, border-color .15s ease, background .15s ease;
    }
    .tagcloud a:hover{
      transform: translateY(-2px);
      border-color: rgba(124,44,255,.20);
      background: rgba(124,44,255,.06);
    }

    .footer{
      background: rgba(255,255,255,.72);
      border-top: 1px solid rgba(20,22,26,.08);
      margin-top: 10px;
      padding: 18px 0 16px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 14px;
      align-items:start;
    }
    .footer-left{
      display:flex; flex-direction:column; gap:12px;
    }
    .footer-brand{
      display:flex; align-items:center; gap:12px;
    }
    .footer-brand img{
      width:40px; height:40px;
      border-radius:16px;
      border:1px solid rgba(20,22,26,.10);
      background:#fff;
      padding:6px;
    }
    .footer-brand strong{font-size:14.5px}
    .footer-brand span{display:block; color: rgba(20,22,26,.68); font-size:12.8px; margin-top:4px}
    .footer-links{
      display:flex; flex-wrap:wrap; gap:10px;
      padding-top: 2px;
    }
    .footer-links a{
      text-decoration:none;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.80);
      padding: 9px 11px;
      border-radius:999px;
      font-size: 12.8px;
      color: rgba(20,22,26,.78);
      font-weight:650;
      transition: transform .15s ease, border-color .15s ease;
      white-space:nowrap;
    }
    .footer-links a:hover{
      transform: translateY(-2px);
      border-color: rgba(255,45,85,.18);
    }
    .footer-right{
      border-radius: var(--radius2);
      border:1px solid rgba(20,22,26,.08);
      background: rgba(255,255,255,.75);
      padding: 14px;
    }
    .footer-right .row{
      display:flex; gap:10px; align-items:flex-start; justify-content:space-between;
    }
    .footer-right h3{
      margin:0 0 10px;
      font-size: 15px;
      letter-spacing:-.2px;
    }
    .contact-line{
      color: rgba(20,22,26,.72);
      font-size: 13.2px;
      line-height:1.7;
      margin:0 0 10px;
    }
    .wechat{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      border-top:1px solid rgba(20,22,26,.06);
      padding-top: 12px;
    }
    .wechat img{
      width: 88px; height: 88px;
      border-radius: 18px;
      border:1px solid rgba(20,22,26,.10);
      background:#fff;
      padding:6px;
      object-fit:cover;
    }
    .wechat .meta{
      flex:1;
      color: rgba(20,22,26,.72);
      font-size: 12.8px;
      line-height:1.6;
    }
    .copyright{
      margin-top: 12px;
      color: rgba(20,22,26,.62);
      font-size: 12.5px;
      display:flex;
      justify-content:space-between;
      gap: 12px;
      flex-wrap:wrap;
      padding-top: 10px;
      border-top: 1px solid rgba(20,22,26,.06);
    }

    .float-cs{
      position: fixed;
      right: 14px;
      bottom: 14px;
      z-index: 80;
      display:flex;
      flex-direction:column;
      gap: 10px;
      align-items:flex-end;
    }
    .cs-btn{
      width: 54px; height: 54px;
      border-radius: 22px;
      border: 1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 18px 40px rgba(18,19,26,.14);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .cs-btn:hover{
      transform: translateY(-3px);
      border-color: rgba(124,44,255,.22);
      box-shadow: 0 26px 60px rgba(18,19,26,.18);
    }
    .cs-panel{
      width: 260px;
      border-radius: 22px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.88);
      box-shadow: 0 22px 60px rgba(18,19,26,.20);
      overflow:hidden;
      transform-origin: right bottom;
      transform: scale(.96);
      opacity:0;
      pointer-events:none;
      transition: opacity .18s ease, transform .18s ease;
    }
    .cs-panel[data-open="true"]{
      opacity:1;
      transform: scale(1);
      pointer-events:auto;
    }
    .cs-panel .top{
      padding: 12px 12px 10px;
      background: linear-gradient(135deg, rgba(124,44,255,.14), rgba(255,45,85,.10));
      border-bottom:1px solid rgba(20,22,26,.06);
      display:flex; align-items:center; justify-content:space-between; gap:10px;
    }
    .cs-panel .top strong{
      font-size: 13.5px;
      letter-spacing:-.2px;
    }
    .cs-close{
      width:34px; height:34px;
      border-radius:14px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.86);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
    }
    .cs-body{
      padding: 12px;
      display:flex; flex-direction:column; gap: 10px;
      color: rgba(20,22,26,.72);
      font-size: 12.8px;
      line-height:1.6;
    }
    .cs-body img{
      width: 100%;
      border-radius: 18px;
      border:1px solid rgba(20,22,26,.10);
      background:#fff;
      padding: 8px;
      object-fit:cover;
    }
    .cs-actions{
      display:flex; gap:10px; align-items:center; justify-content:space-between;
    }
    .link-inline{
      text-decoration:none;
      font-size: 12.8px;
      font-weight:700;
      color: rgba(20,22,26,.86);
      padding: 10px 12px;
      border-radius: 14px;
      border:1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.86);
      transition: transform .15s ease, border-color .15s ease;
      white-space:nowrap;
    }
    .link-inline:hover{
      transform: translateY(-2px);
      border-color: rgba(0,163,255,.18);
    }

    .to-top{
      width: 54px; height: 54px;
      border-radius: 22px;
      border: 1px solid rgba(20,22,26,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 18px 40px rgba(18,19,26,.14);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .18s ease, opacity .18s ease, border-color .18s ease;
      opacity: 0;
      pointer-events:none;
    }
    .to-top[data-show="true"]{
      opacity:1;
      pointer-events:auto;
    }
    .to-top:hover{
      transform: translateY(-3px);
      border-color: rgba(124,44,255,.22);
    }

    .reveal{
      opacity:0;
      transform: translateY(10px);
      transition: opacity .5s ease, transform .5s ease;
    }
    .reveal[data-in="true"]{
      opacity:1;
      transform: translateY(0);
    }

    @media (max-width: 980px){
      .hero-grid{grid-template-columns: 1fr; }
      .meta-item{min-width: 0; flex:1}
      .grid-3{grid-template-columns: 1fr}
      .grid-4{grid-template-columns: 1fr 1fr}
      .reviews{grid-template-columns: 1fr}
      .article-grid{grid-template-columns: 1fr}
      .carousel-case{grid-template-columns: 1fr}
      .form-grid{grid-template-columns: 1fr}
      .step{grid-template-columns: 1fr}
      nav{display:none}
      .mobile-toggle{display:flex}
      .mobile-panel{display:none}
    }
    @media (max-width: 520px){
      .grid-4{grid-template-columns: 1fr}
      form{grid-template-columns: 1fr}
      .banner-strip{grid-template-columns: 1fr}
      table{min-width: 740px}
      .brand{min-width: 0}
      .brand-name span{display:none}
    }