:root{
      --bg0:#ffffff;
      --bg1:#f6f7fb;
      --bg2:#f1f3fb;
      --text:#121826;
      --muted:#5b6577;
      --muted2:#7b869a;
      --line:rgba(20,28,38,.10);
      --card:rgba(255,255,255,.78);
      --card2:rgba(255,255,255,.92);
      --shadow: 0 10px 30px rgba(18,24,38,.08);
      --shadow2: 0 18px 60px rgba(18,24,38,.12);
      --radius:18px;
      --radius2:26px;
      --primary:#1f6fff;
      --primary2:#7a3cff;
      --teal:#00b8a9;
      --gold:#f6b73c;
      --danger:#e9484a;
      --ok:#16a34a;
      --focus: 0 0 0 4px rgba(31,111,255,.18);
      --container: 1120px;
      --gutter: 18px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
      background:
        radial-gradient(1200px 600px at 20% -10%, rgba(122,60,255,.12), transparent 55%),
        radial-gradient(900px 500px at 80% 0%, rgba(31,111,255,.14), transparent 58%),
        linear-gradient(180deg, var(--bg0), var(--bg1) 40%, var(--bg0) 100%);
      color:var(--text);
    }

    a{color:inherit; text-decoration:none}
    button, input, select, textarea{font:inherit}
    .container{
      width: min(var(--container), calc(100% - var(--gutter)*2));
      margin: 0 auto;
    }

    /* Topbar */
    .topbar{
      position:sticky;
      top:0;
      z-index:50;
      background: rgba(255,255,255,.72);
      backdrop-filter: blur(10px);
      border-bottom:1px solid rgba(20,28,38,.08);
    }
    .topbar-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding: 12px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      min-width: 220px;
    }
    .ai-page-logo{
      width:44px;
      height:44px;
      border-radius:12px;
      box-shadow: 0 10px 25px rgba(122,60,255,.18);
      background: rgba(255,255,255,.8);
      padding:6px;
      object-fit:contain;
    }
    .brand-txt{
      display:flex;
      flex-direction:column;
      line-height:1.1;
    }
    .brand-txt strong{
      font-size:14px;
      letter-spacing:.2px;
    }
    .brand-txt span{
      font-size:12px;
      color:var(--muted);
      margin-top:4px;
    }

    .nav{
      display:flex;
      align-items:center;
      gap:14px;
      flex: 1;
      justify-content:center;
    }
    .nav a{
      font-size:13px;
      color: rgba(18,24,38,.76);
      padding: 10px 10px;
      border-radius: 12px;
      border: 1px solid transparent;
      transition: background .2s ease, border-color .2s ease, transform .2s ease;
      white-space:nowrap;
    }
    .nav a:hover{
      background: rgba(31,111,255,.08);
      border-color: rgba(31,111,255,.18);
      transform: translateY(-1px);
    }

    .top-actions{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      gap:10px;
      min-width: 220px;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding: 10px 12px;
      border-radius: 999px;
      border: 1px solid rgba(20,28,38,.10);
      background: rgba(255,255,255,.75);
      color: rgba(18,24,38,.85);
      box-shadow: 0 10px 24px rgba(18,24,38,.06);
      transition: transform .2s ease, box-shadow .2s ease;
      font-size:13px;
      white-space:nowrap;
    }
    .pill:hover{
      transform: translateY(-1px);
      box-shadow: 0 18px 50px rgba(18,24,38,.10);
    }
    .pill svg{flex:0 0 auto}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      border:none;
      border-radius: 14px;
      padding: 12px 14px;
      font-weight: 650;
      font-size:14px;
      cursor:pointer;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      user-select:none;
      white-space:nowrap;
    }
    .btn-primary{
      background: linear-gradient(135deg, var(--primary), var(--primary2));
      color:#fff;
      box-shadow: 0 16px 40px rgba(31,111,255,.24);
    }
    .btn-primary:hover{transform: translateY(-1px); box-shadow: 0 22px 60px rgba(31,111,255,.30)}
    .btn-ghost{
      background: rgba(255,255,255,.72);
      color: rgba(18,24,38,.92);
      border:1px solid rgba(20,28,38,.12);
    }
    .btn-ghost:hover{transform: translateY(-1px); border-color: rgba(31,111,255,.22); box-shadow: 0 18px 40px rgba(18,24,38,.10)}
    .btn-small{
      padding: 10px 12px;
      border-radius: 12px;
      font-size:13px;
      font-weight: 640;
    }

    .mobile-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius: 14px;
      border:1px solid rgba(20,28,38,.12);
      background: rgba(255,255,255,.75);
      box-shadow: 0 10px 24px rgba(18,24,38,.06);
      align-items:center;
      justify-content:center;
      cursor:pointer;
      transition: transform .2s ease;
    }
    .mobile-toggle:hover{transform: translateY(-1px)}
    .mobile-panel{
      display:none;
      padding: 10px 0 14px 0;
      border-top: 1px solid rgba(20,28,38,.08);
    }
    .mobile-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      padding-top:10px;
    }
    .mobile-links a{
      display:inline-flex;
      padding: 10px 12px;
      border-radius: 14px;
      border:1px solid rgba(20,28,38,.10);
      background: rgba(255,255,255,.78);
      font-size:13px;
      color: rgba(18,24,38,.86);
    }

    /* Sections */
    main{padding-bottom: 30px}
    section{padding: 64px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:16px;
      margin-bottom: 22px;
    }
    .kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding: 8px 10px;
      border-radius: 999px;
      border:1px solid rgba(31,111,255,.18);
      background: rgba(31,111,255,.08);
      color: rgba(31,111,255,.95);
      font-size: 12.5px;
      font-weight: 650;
      letter-spacing: .2px;
    }
    .h2{
      font-size: 28px;
      margin: 10px 0 0 0;
      letter-spacing: -0.5px;
    }
    .lead{
      margin: 10px 0 0 0;
      color: var(--muted);
      font-size: 14.5px;
      line-height: 1.7;
      max-width: 62ch;
    }

    .grid-2{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 18px;
      align-items: start;
    }
    .grid-3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }
    .grid-4{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }

    .card{
      background: var(--card);
      border: 1px solid rgba(20,28,38,.10);
      border-radius: var(--radius);
      box-shadow: 0 10px 24px rgba(18,24,38,.06);
      overflow:hidden;
    }
    .card-pad{padding:18px}
    .card-soft{
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(20,28,38,.10);
      border-radius: var(--radius);
      box-shadow: 0 12px 30px rgba(18,24,38,.06);
    }
    .card:hover{box-shadow: 0 18px 55px rgba(18,24,38,.10)}
    .micro{
      font-size: 12.5px;
      color: var(--muted2);
      line-height: 1.6;
    }
    .title-row{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding: 8px 10px;
      border-radius: 999px;
      border:1px solid rgba(20,28,38,.10);
      background: rgba(255,255,255,.65);
      font-size: 12.5px;
      color: rgba(18,24,38,.86);
      white-space:nowrap;
    }
    .badge i{
      width:10px;height:10px;border-radius:999px;background:linear-gradient(135deg,var(--primary),var(--primary2));
      display:inline-block; box-shadow: 0 10px 22px rgba(31,111,255,.25);
    }

    /* Hero */
    .hero{
      padding: 34px 0 24px 0;
      position:relative;
      overflow:hidden;
    }
    .hero-wrap{
      border-radius: var(--radius2);
      border: 1px solid rgba(20,28,38,.10);
      background:
        radial-gradient(900px 500px at 12% 12%, rgba(31,111,255,.22), transparent 55%),
        radial-gradient(700px 420px at 80% 5%, rgba(122,60,255,.25), transparent 55%),
        radial-gradient(560px 360px at 50% 80%, rgba(0,184,169,.14), transparent 60%),
        linear-gradient(180deg, rgba(255,255,255,.80), rgba(255,255,255,.58));
      box-shadow: var(--shadow2);
      padding: 26px;
      position:relative;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 18px;
      align-items: start;
    }

    .hero h1{
      margin: 8px 0 0 0;
      font-size: 40px;
      line-height: 1.15;
      letter-spacing: -1.2px;
    }
    .hero p{
      margin: 14px 0 0 0;
      color: rgba(18,24,38,.74);
      font-size: 15px;
      line-height: 1.75;
      max-width: 62ch;
    }
    .hero-cta{
      display:flex;
      gap:12px;
      margin-top: 18px;
      flex-wrap: wrap;
    }
    .hero-meta{
      display:flex;
      gap:10px;
      margin-top: 18px;
      flex-wrap:wrap;
    }
    .meta-chip{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding: 10px 12px;
      border-radius: 16px;
      background: rgba(255,255,255,.7);
      border:1px solid rgba(20,28,38,.10);
      min-width: 170px;
    }
    .meta-chip b{
      font-size: 13px;
    }
    .meta-chip span{
      font-size: 12.5px;
      color: var(--muted);
      display:block;
      margin-top:3px;
    }
    .meta-icon{
      width:34px;height:34px;border-radius:12px;
      display:flex;align-items:center;justify-content:center;
      border:1px solid rgba(31,111,255,.18);
      background: linear-gradient(135deg, rgba(31,111,255,.14), rgba(122,60,255,.12));
      box-shadow: 0 12px 30px rgba(31,111,255,.10);
      flex:0 0 auto;
    }

    .hero-right{
      padding: 8px 0;
    }
    .stats-stack{
      display:grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }
    .stat{
      padding: 16px;
      border-radius: 18px;
      border:1px solid rgba(20,28,38,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 12px 30px rgba(18,24,38,.06);
      position:relative;
      overflow:hidden;
      transition: transform .2s ease;
    }
    .stat::after{
      content:"";
      position:absolute;
      inset:-1px;
      background:
        radial-gradient(280px 140px at 20% 10%, rgba(31,111,255,.18), transparent 60%),
        radial-gradient(240px 120px at 80% 0%, rgba(122,60,255,.18), transparent 55%);
      opacity:.9;
      pointer-events:none;
    }
    .stat > *{position:relative}
    .stat:hover{transform: translateY(-2px)}
    .stat .num{
      font-size: 22px;
      font-weight: 820;
      letter-spacing:-.3px;
    }
    .stat .lab{
      margin-top:6px;
      color: rgba(18,24,38,.72);
      font-size: 12.8px;
      line-height:1.45;
    }

    .scratch{
      margin-top: 14px;
      border-radius: 20px;
      border:1px solid rgba(20,28,38,.10);
      background:
        radial-gradient(480px 250px at 20% 30%, rgba(246,183,60,.18), transparent 60%),
        radial-gradient(520px 320px at 70% 20%, rgba(0,184,169,.14), transparent 60%),
        linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.62));
      padding: 16px;
      box-shadow: 0 12px 30px rgba(18,24,38,.06);
    }
    .scratch .row{
      display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
    }
    .scratch h3{
      margin:0;
      font-size: 15.5px;
      letter-spacing:-.2px;
    }
    .scratch ul{
      list-style:none; padding:0; margin:10px 0 0 0;
      display:grid; gap:10px;
    }
    .scratch li{
      display:flex; gap:10px; align-items:flex-start;
      color: rgba(18,24,38,.78);
      font-size: 13.2px;
      line-height: 1.5;
    }
    .check{
      width:18px;height:18px;border-radius:6px;
      background: rgba(22,163,74,.12);
      border:1px solid rgba(22,163,74,.25);
      display:flex; align-items:center; justify-content:center;
      margin-top:1px;
      flex:0 0 auto;
    }

    /* Reveal */
    .reveal{
      opacity:0;
      transform: translateY(10px);
      transition: opacity .6s ease, transform .6s ease;
    }
    .reveal.in{
      opacity:1;
      transform: translateY(0);
    }

    /* Service cards */
    .iconbox{
      width:40px;height:40px;border-radius:14px;
      display:flex; align-items:center; justify-content:center;
      background: linear-gradient(135deg, rgba(31,111,255,.14), rgba(122,60,255,.12));
      border:1px solid rgba(31,111,255,.18);
      box-shadow: 0 12px 30px rgba(31,111,255,.10);
      flex:0 0 auto;
    }
    .service-card{
      padding: 18px;
      display:flex;
      gap:14px;
      align-items:flex-start;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .service-card:hover{transform: translateY(-3px); box-shadow: 0 20px 55px rgba(18,24,38,.12)}
    .service-card h3{
      margin:0;
      font-size: 15.5px;
      letter-spacing:-.2px;
    }
    .service-card p{
      margin:8px 0 0 0;
      color: rgba(18,24,38,.72);
      font-size: 13.3px;
      line-height:1.6;
    }

    /* Steps */
    .steps{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
      align-items: stretch;
    }
    .step{
      padding: 16px;
      border-radius: 20px;
      border:1px solid rgba(20,28,38,.10);
      background:
        linear-gradient(180deg, rgba(255,255,255,.80), rgba(255,255,255,.66));
      box-shadow: 0 10px 24px rgba(18,24,38,.06);
      position:relative;
      overflow:hidden;
    }
    .step::before{
      content:"";
      position:absolute;
      inset:-1px;
      background:
        radial-gradient(320px 160px at 10% 15%, rgba(31,111,255,.18), transparent 60%),
        radial-gradient(260px 140px at 95% 0%, rgba(122,60,255,.16), transparent 60%);
      opacity:.9;
      pointer-events:none;
    }
    .step > *{position:relative}
    .step .n{
      width:34px;height:34px;border-radius:14px;
      background: rgba(31,111,255,.10);
      border:1px solid rgba(31,111,255,.20);
      display:flex;align-items:center;justify-content:center;
      font-weight: 800;
      color: rgba(31,111,255,.95);
      box-shadow: 0 12px 30px rgba(31,111,255,.12);
    }
    .step h3{margin:12px 0 0 0; font-size: 15.5px; letter-spacing:-.2px}
    .step p{margin:8px 0 0 0; color: rgba(18,24,38,.72); font-size: 13.3px; line-height:1.6}

    /* Compare */
    .compare-wrap{
      border-radius: var(--radius2);
      border: 1px solid rgba(20,28,38,.10);
      background:
        radial-gradient(980px 480px at 10% 0%, rgba(31,111,255,.14), transparent 56%),
        radial-gradient(820px 440px at 90% 10%, rgba(122,60,255,.14), transparent 56%),
        linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.62));
      padding: 18px;
      box-shadow: 0 18px 60px rgba(18,24,38,.08);
    }
    .compare-head{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      padding: 8px 6px 16px 6px;
    }
    .score{
      display:flex; align-items:center; gap:12px;
      background: rgba(255,255,255,.72);
      border:1px solid rgba(20,28,38,.10);
      padding: 12px 14px;
      border-radius: 18px;
      box-shadow: 0 12px 30px rgba(18,24,38,.06);
      white-space:nowrap;
    }
    .stars{
      display:flex; gap:4px; align-items:center;
    }
    .star{
      width:18px; height:18px; fill: rgba(246,183,60,.95);
      filter: drop-shadow(0 8px 15px rgba(246,183,60,.22));
    }
    .score .snum{
      font-weight: 900;
      font-size: 18px;
      letter-spacing:-.3px;
    }
    .score .slab{
      font-size: 12.8px; color: var(--muted);
      margin-top:4px;
      line-height:1.2;
    }

    .table-scroll{overflow:auto; border-radius: 18px; border:1px solid rgba(20,28,38,.10); background: rgba(255,255,255,.65)}
    table{
      width:100%;
      border-collapse: separate;
      border-spacing:0;
      min-width: 760px;
    }
    th, td{
      padding: 14px 14px;
      border-bottom:1px solid rgba(20,28,38,.08);
      font-size: 13.5px;
      vertical-align: top;
    }
    th{
      position: sticky;
      top: 0;
      background: rgba(250,251,255,.92);
      z-index:1;
      text-align:left;
      font-weight: 800;
      color: rgba(18,24,38,.92);
    }
    tr:last-child td{border-bottom:none}
    .td-pill{
      display:inline-flex; align-items:center; gap:8px;
      padding: 8px 10px;
      border-radius: 999px;
      border:1px solid rgba(20,28,38,.10);
      background: rgba(255,255,255,.72);
      margin: 2px 6px 2px 0;
      white-space:nowrap;
      color: rgba(18,24,38,.86);
      font-size: 12.8px;
    }
    .td-pill.ok{
      border-color: rgba(22,163,74,.22);
      background: rgba(22,163,74,.10);
      color: rgba(22,163,74,.95);
    }
    .td-pill.primary{
      border-color: rgba(31,111,255,.22);
      background: rgba(31,111,255,.10);
      color: rgba(31,111,255,.98);
    }

    /* Comments */
    .quote{
      padding: 16px;
      border-radius: 20px;
      border:1px solid rgba(20,28,38,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 12px 30px rgba(18,24,38,.06);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .quote:hover{transform: translateY(-2px); box-shadow: 0 20px 55px rgba(18,24,38,.10)}
    .quote-top{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      margin-bottom: 10px;
    }
    .avatar{
      width:42px;height:42px;border-radius:16px;
      background: linear-gradient(135deg, rgba(31,111,255,.18), rgba(122,60,255,.16));
      border:1px solid rgba(31,111,255,.22);
      display:flex; align-items:center; justify-content:center;
      font-weight: 900;
      color: rgba(31,111,255,.98);
      box-shadow: 0 12px 30px rgba(31,111,255,.10);
      flex:0 0 auto;
    }
    .who b{display:block; font-size:14.5px}
    .who span{display:block; font-size:12.8px; color: var(--muted); margin-top:4px}
    .quote p{
      margin: 0;
      color: rgba(18,24,38,.74);
      line-height: 1.7;
      font-size: 13.6px;
    }

    /* Case */
    .case-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .case-card{
      padding: 16px;
      border-radius: 22px;
      border:1px solid rgba(20,28,38,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 12px 30px rgba(18,24,38,.06);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .case-card:hover{transform: translateY(-3px); box-shadow: 0 22px 60px rgba(18,24,38,.12)}
    .case-top{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      margin-bottom: 12px;
    }
    .case-tag{
      display:inline-flex; align-items:center; gap:8px;
      padding: 8px 10px;
      border-radius: 999px;
      background: rgba(31,111,255,.08);
      border:1px solid rgba(31,111,255,.18);
      color: rgba(31,111,255,.95);
      font-size: 12.6px;
      font-weight: 700;
      white-space:nowrap;
    }
    .case-card h3{
      margin: 0;
      font-size: 15.5px;
      letter-spacing:-.2px;
    }
    .case-card .desc{
      margin-top: 8px;
      color: rgba(18,24,38,.72);
      font-size: 13.3px;
      line-height: 1.6;
      min-height: 64px;
    }
    .case-metas{
      display:flex; flex-wrap:wrap; gap:8px;
      margin-top: 12px;
    }

    /* Articles + list */
    .list{
      display:grid;
      grid-template-columns: 1fr;
      gap: 10px;
    }
    .list-item{
      display:flex; align-items:flex-start; justify-content:space-between; gap:14px;
      padding: 14px 14px;
      border-radius: 18px;
      border:1px solid rgba(20,28,38,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 12px 30px rgba(18,24,38,.06);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .list-item:hover{transform: translateY(-2px); box-shadow: 0 20px 55px rgba(18,24,38,.10)}
    .list-item b{font-size:14.5px; letter-spacing:-.2px}
    .list-item .meta{
      color: var(--muted);
      font-size: 12.8px;
      margin-top:6px;
      line-height:1.35;
    }
    .list-item .arrow{
      width:38px;height:38px;border-radius:16px;
      border:1px solid rgba(31,111,255,.18);
      background: rgba(31,111,255,.08);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      transition: transform .2s ease;
      margin-top: 2px;
    }
    .list-item:hover .arrow{transform: translateX(2px)}

    /* Form */
    .form-wrap{
      padding: 18px;
      border-radius: var(--radius2);
      border:1px solid rgba(20,28,38,.10);
      background:
        radial-gradient(860px 380px at 18% 0%, rgba(31,111,255,.14), transparent 56%),
        radial-gradient(740px 420px at 88% 10%, rgba(122,60,255,.14), transparent 56%),
        linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.62));
      box-shadow: 0 18px 60px rgba(18,24,38,.08);
    }
    .form-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 14px;
    }
    label{
      display:block;
      font-size: 12.8px;
      color: rgba(18,24,38,.78);
      margin-bottom: 6px;
      font-weight: 650;
      letter-spacing:.2px;
    }
    .field{
      width:100%;
      padding: 12px 12px;
      border-radius: 14px;
      border:1px solid rgba(20,28,38,.12);
      background: rgba(255,255,255,.80);
      outline:none;
      transition: box-shadow .2s ease, border-color .2s ease;
    }
    .field:focus{
      border-color: rgba(31,111,255,.34);
      box-shadow: var(--focus);
    }
    textarea.field{min-height: 104px; resize: vertical}
    .form-actions{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-top: 12px;
      flex-wrap:wrap;
    }
    .hint{
      color: var(--muted);
      font-size: 12.8px;
      line-height:1.5;
      max-width: 56ch;
    }
    .form-actions .btn{min-width: 160px}

    /* FAQ */
    .faq-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items:start;
    }
    .faq-item{
      border-radius: 20px;
      border:1px solid rgba(20,28,38,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 12px 30px rgba(18,24,38,.06);
      overflow:hidden;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .faq-item:hover{transform: translateY(-2px); box-shadow: 0 20px 55px rgba(18,24,38,.10)}
    .faq-q{
      width:100%;
      text-align:left;
      border:none;
      background: transparent;
      padding: 14px 14px;
      cursor:pointer;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
    }
    .faq-q b{
      font-size: 14.5px;
      letter-spacing:-.2px;
      line-height:1.4;
    }
    .chev{
      width:36px;height:36px;border-radius: 16px;
      border:1px solid rgba(20,28,38,.10);
      background: rgba(255,255,255,.7);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      transition: transform .25s ease;
      margin-top: 2px;
    }
    .faq-item[data-open="true"] .chev{transform: rotate(180deg)}
    .faq-a{
      padding: 0 14px 14px 14px;
      color: rgba(18,24,38,.74);
      font-size: 13.6px;
      line-height: 1.7;
      display:none;
    }
    .faq-item[data-open="true"] .faq-a{display:block}

    /* Tag cloud */
    .tag-cloud{
      display:flex; flex-wrap:wrap; gap:10px;
      margin-top: 10px;
    }
    .tag{
      padding: 10px 12px;
      border-radius: 999px;
      border:1px solid rgba(20,28,38,.10);
      background: rgba(255,255,255,.72);
      color: rgba(18,24,38,.86);
      font-size: 13px;
      transition: transform .2s ease, border-color .2s ease;
    }
    .tag:hover{transform: translateY(-2px); border-color: rgba(31,111,255,.22)}

    /* Network list */
    .network{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items:start;
    }
    .network-card{
      padding: 16px;
      border-radius: 22px;
      border:1px solid rgba(20,28,38,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 12px 30px rgba(18,24,38,.06);
    }
    .network-card h3{margin:0; font-size: 15.5px}
    .network-card p{margin:8px 0 0 0; color: rgba(18,24,38,.72); font-size: 13.3px; line-height:1.65}
    .network-list{
      list-style:none; padding:0; margin:12px 0 0 0;
      display:grid; gap:10px;
    }
    .network-list li{
      display:flex; gap:10px; align-items:flex-start;
      color: rgba(18,24,38,.78);
      font-size: 13.3px;
      line-height:1.5;
    }
    .dot{
      width:10px;height:10px;border-radius:999px;
      background: linear-gradient(135deg, var(--primary), var(--primary2));
      box-shadow: 0 10px 22px rgba(31,111,255,.25);
      margin-top: 6px;
      flex:0 0 auto;
    }

    /* Timeline */
    .timeline{
      display:grid;
      grid-template-columns: 1fr;
      gap: 12px;
    }
    .t-item{
      padding: 14px;
      border-radius: 20px;
      border:1px solid rgba(20,28,38,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 12px 30px rgba(18,24,38,.06);
      display:flex;
      gap:12px;
      align-items:flex-start;
    }
    .t-ic{
      width:40px;height:40px;border-radius: 16px;
      border:1px solid rgba(31,111,255,.18);
      background: rgba(31,111,255,.08);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      box-shadow: 0 12px 30px rgba(31,111,255,.10);
    }
    .t-item b{display:block; font-size: 14.7px; letter-spacing:-.2px}
    .t-item span{
      display:block;
      margin-top: 6px;
      color: rgba(18,24,38,.72);
      font-size: 13.3px;
      line-height:1.65;
    }

    /* Footer */
    footer{
      background:
        radial-gradient(900px 380px at 20% 0%, rgba(31,111,255,.16), transparent 55%),
        radial-gradient(700px 360px at 85% 10%, rgba(122,60,255,.16), transparent 58%),
        linear-gradient(180deg, rgba(241,243,251,.96), rgba(245,246,252,.98));
      border-top: 1px solid rgba(20,28,38,.10);
      padding: 22px 0 26px 0;
      color: rgba(18,24,38,.86);
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 16px;
      align-items:start;
    }
    .footer-card{
      padding: 16px;
      border-radius: 22px;
      border:1px solid rgba(20,28,38,.10);
      background: rgba(255,255,255,.70);
      box-shadow: 0 12px 30px rgba(18,24,38,.06);
    }
    .footer-card h3{margin:0; font-size: 15.5px}
    .footer-card p{
      margin: 10px 0 0 0;
      color: rgba(18,24,38,.72);
      font-size: 13.5px;
      line-height:1.7;
    }
    .footer-links{
      display:flex; flex-wrap:wrap; gap:10px;
      margin-top: 12px;
    }
    .footer-links a{
      display:inline-flex;
      padding: 10px 12px;
      border-radius: 999px;
      border:1px solid rgba(20,28,38,.10);
      background: rgba(255,255,255,.78);
      font-size: 13px;
      color: rgba(18,24,38,.86);
      transition: transform .2s ease, border-color .2s ease;
      white-space:nowrap;
    }
    .footer-links a:hover{transform: translateY(-2px); border-color: rgba(31,111,255,.22)}
    .copyright{
      margin-top: 12px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      color: rgba(18,24,38,.70);
      font-size: 12.8px;
    }

    /* Floating customer */
    .float-customer{
      position: fixed;
      right: 14px;
      bottom: 18px;
      z-index: 80;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-end;
    }
    .float-btn{
      width: 54px; height: 54px;
      border-radius: 18px;
      border:1px solid rgba(20,28,38,.12);
      background: rgba(255,255,255,.86);
      box-shadow: 0 18px 60px rgba(18,24,38,.14);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      transition: transform .2s ease;
      position:relative;
      overflow:hidden;
    }
    .float-btn::before{
      content:"";
      position:absolute; inset:-40px;
      background: radial-gradient(circle at 30% 30%, rgba(31,111,255,.22), transparent 55%),
                  radial-gradient(circle at 80% 20%, rgba(122,60,255,.18), transparent 60%);
      opacity:.9;
      transform: rotate(12deg);
    }
    .float-btn > *{position:relative}
    .float-btn:hover{transform: translateY(-3px)}
    .tooltip{
      display:none;
      width: 240px;
      border-radius: 18px;
      border:1px solid rgba(20,28,38,.12);
      background: rgba(255,255,255,.92);
      box-shadow: 0 18px 60px rgba(18,24,38,.14);
      overflow:hidden;
    }
    .tooltip.open{display:block}
    .tip-head{
      padding: 12px 12px 10px 12px;
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      background: linear-gradient(135deg, rgba(31,111,255,.10), rgba(122,60,255,.08));
      border-bottom: 1px solid rgba(20,28,38,.08);
    }
    .tip-head b{font-size: 13.8px}
    .tip-close{
      width:34px; height:34px;
      border-radius: 14px;
      border:1px solid rgba(20,28,38,.10);
      background: rgba(255,255,255,.78);
      cursor:pointer;
    }
    .tip-body{
      padding: 12px;
      display:grid;
      gap:10px;
    }
    .qr-wrap{
      display:flex; gap:12px; align-items:center;
    }
    .qr-wrap img{
      width: 76px;
      height: 76px;
      border-radius: 18px;
      border:1px solid rgba(20,28,38,.10);
      object-fit:cover;
      background:#fff;
    }
    .tip-body p{
      margin:0;
      color: rgba(18,24,38,.72);
      font-size: 13px;
      line-height:1.6;
    }
    .tip-actions{display:flex; gap:10px; flex-wrap:wrap}
    .tip-actions .btn{padding: 10px 12px; border-radius: 14px; font-size:13px}
    .btn-outline{
      background: rgba(255,255,255,.78);
      border:1px solid rgba(20,28,38,.12);
      color: rgba(18,24,38,.88);
      box-shadow:none;
    }
    .btn-outline:hover{border-color: rgba(31,111,255,.22); box-shadow: 0 18px 40px rgba(18,24,38,.10)}
    .backtop{
      width: 54px; height: 54px;
      border-radius: 18px;
      border:1px solid rgba(20,28,38,.12);
      background: rgba(255,255,255,.86);
      box-shadow: 0 18px 60px rgba(18,24,38,.14);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      transition: transform .2s ease;
    }
    .backtop:hover{transform: translateY(-3px)}

    /* Responsive */
    @media (max-width: 980px){
      .nav{display:none}
      .mobile-toggle{display:flex}
      .mobile-panel{display:block}
      .hero-grid{grid-template-columns: 1fr; }
      .hero h1{font-size: 34px}
      .grid-2{grid-template-columns: 1fr}
      .grid-3{grid-template-columns: 1fr 1fr}
      .grid-4{grid-template-columns: 1fr 1fr}
      .steps{grid-template-columns: 1fr 1fr}
      .faq-grid{grid-template-columns: 1fr}
      .case-grid{grid-template-columns: 1fr}
      .network{grid-template-columns: 1fr}
      .footer-grid{grid-template-columns: 1fr}
      .top-actions{min-width:auto}
      .brand{min-width:auto}
    }
    @media (max-width: 520px){
      section{padding: 52px 0}
      .hero-wrap{padding: 16px}
      .stats-stack{grid-template-columns: 1fr 1fr}
      .form-grid{grid-template-columns: 1fr}
      .hero h1{font-size: 30px}
      .meta-chip{min-width: auto; width: 100%}
      .steps{grid-template-columns: 1fr}
      .grid-3{grid-template-columns: 1fr}
      .grid-4{grid-template-columns: 1fr}
    }

    /* Reduced motion */
    @media (prefers-reduced-motion: reduce){
      html{scroll-behavior:auto}
      .reveal{transition:none}
      .btn, .card, .case-card, .quote, .list-item, .faq-item, .stat, .service-card {transition:none}
    }