:root{
      --bg: #fbfaf7;
      --card: #ffffff;
      --text: #1f2430;
      --muted: #5c667a;
      --line: rgba(20, 28, 45, .10);
      --shadow: 0 10px 30px rgba(18, 28, 45, .08);
      --shadow2: 0 12px 40px rgba(18, 28, 45, .10);
      --brand: #2a5bd7;
      --brand2:#1f4fd2;
      --accent:#0e7490;
      --accent2:#0b5f74;
      --radius: 16px;
      --radius2: 22px;
      --container: 1120px;
    }
    *{box-sizing:border-box}
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, "PingFang SC", "Noto Sans SC", Arial, "Microsoft YaHei", sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 700px at 20% -10%, rgba(42,91,215,.12), transparent 60%),
        radial-gradient(900px 550px at 90% 5%, rgba(14,116,144,.12), transparent 55%),
        linear-gradient(180deg, #fbfaf7, #f6f5f1 60%, #fbfaf7);
      line-height:1.55;
      overflow-x:hidden;
    }
    a{color:inherit}
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:30;
      background: rgba(251,250,247,.72);
      backdrop-filter: blur(10px);
      border-bottom:1px solid rgba(20,28,45,.08);
    }
    .nav{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:14px 0;
      flex-wrap:wrap;
    }
    .brand{
      text-decoration:none;
      font-weight:800;
      letter-spacing:.2px;
      font-size:15px;
      padding:10px 12px;
      border-radius:12px;
      border:1px solid rgba(20,28,45,.10);
      background: rgba(255,255,255,.6);
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:18px;
      flex:1;
      justify-content:center;
      min-width:260px;
    }
    .nav-links a{
      text-decoration:none;
      color:var(--muted);
      font-weight:600;
      font-size:14px;
      padding:10px 10px;
      border-radius:12px;
      transition: background .2s ease, color .2s ease;
    }
    .nav-links a:hover{
      background: rgba(42,91,215,.08);
      color: var(--text);
    }
    .nav-cta{
      text-decoration:none;
      font-weight:800;
      font-size:14px;
      padding:11px 14px;
      border-radius:12px;
      background: linear-gradient(180deg, var(--brand), var(--brand2));
      color:#fff;
      box-shadow: 0 12px 30px rgba(42,91,215,.22);
      border:1px solid rgba(255,255,255,.20);
      transition: transform .15s ease, box-shadow .15s ease;
      white-space:nowrap;
    }
    .nav-cta:hover{transform: translateY(-1px); box-shadow: 0 16px 40px rgba(42,91,215,.28);}
    .nav-toggle{
      display:none;
      border:1px solid rgba(20,28,45,.14);
      background: rgba(255,255,255,.65);
      color:var(--text);
      border-radius:12px;
      padding:10px 12px;
      font-weight:700;
      cursor:pointer;
    }

    .mobile-menu{
      display:none;
      padding:0 0 14px 0;
      border-top:1px solid rgba(20,28,45,.08);
    }
    .mobile-menu.open{display:flex; flex-direction:column; gap:8px;}
    .mobile-menu a{
      text-decoration:none;
      padding:12px 0;
      font-weight:800;
      color:var(--text);
      border-bottom:1px dashed rgba(20,28,45,.10);
    }

    .page{padding-bottom:34px;}

    .hero{
      padding:42px 0 18px;
    }
    .hero-inner{
      display:flex;
      align-items:stretch;
      justify-content:space-between;
      gap:22px;
    }
    .hero-copy{
      flex:1;
      min-width:280px;
      padding:22px;
      border-radius: var(--radius2);
      background:
        linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.56));
      border:1px solid rgba(20,28,45,.10);
      box-shadow: var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .hero-copy::before{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        radial-gradient(600px 220px at 20% 0%, rgba(42,91,215,.14), transparent 60%),
        radial-gradient(500px 240px at 90% 30%, rgba(14,116,144,.12), transparent 60%);
      pointer-events:none;
      opacity:.9;
    }
    .hero-copy > *{position:relative;}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background: rgba(42,91,215,.10);
      border:1px solid rgba(42,91,215,.18);
      color:#1743a6;
      font-weight:800;
      font-size:12px;
      margin-bottom:14px;
      width: fit-content;
    }
    h1{
      margin:0 0 10px;
      font-size:40px;
      line-height:1.15;
      letter-spacing:-.6px;
    }
    .lead{
      margin:0 0 16px;
      color:var(--muted);
      font-size:16px;
      max-width:56ch;
    }
    .hero-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      margin-bottom:12px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      text-decoration:none;
      border-radius:14px;
      padding:12px 14px;
      font-weight:900;
      font-size:14px;
      border:1px solid rgba(20,28,45,.14);
      transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
      user-select:none;
      cursor:pointer;
      white-space:nowrap;
    }
    .btn-primary{
      background: linear-gradient(180deg, var(--brand), var(--brand2));
      color:#fff;
      border-color: rgba(255,255,255,.18);
      box-shadow: 0 16px 40px rgba(42,91,215,.20);
    }
    .btn-primary:hover{transform: translateY(-1px); box-shadow: 0 22px 55px rgba(42,91,215,.26);}
    .btn-ghost{
      background: rgba(255,255,255,.65);
      color:var(--text);
    }
    .btn-ghost:hover{transform: translateY(-1px); box-shadow: var(--shadow); background: rgba(255,255,255,.86);}
    .hero-note{
      display:flex;
      align-items:center;
      gap:10px;
      margin-top:8px;
      padding:12px 12px;
      border-radius:14px;
      border:1px solid rgba(20,28,45,.10);
      background: rgba(255,255,255,.55);
      color:var(--muted);
      font-weight:650;
      font-size:13px;
      width: fit-content;
      max-width:100%;
    }
    .dot{
      width:10px; height:10px;
      border-radius:50%;
      background: radial-gradient(circle at 30% 30%, #8bd6ff, #2a5bd7);
      box-shadow: 0 0 0 5px rgba(42,91,215,.10);
      flex:0 0 auto;
    }

    .hero-visual{
      width:380px;
      min-width:320px;
      display:flex;
      align-items:center;
      justify-content:center;
      position:relative;
    }
    .device{
      width: 320px;
      max-width:100%;
      aspect-ratio: 10 / 18;
      border-radius: 26px;
      background: linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.50));
      border: 1px solid rgba(20,28,45,.12);
      box-shadow: var(--shadow2);
      position:relative;
      overflow:hidden;
    }
    .screen{
      position:absolute;
      inset:14px 14px 22px;
      border-radius: 20px;
      background:
        radial-gradient(700px 320px at 20% 0%, rgba(42,91,215,.18), transparent 60%),
        radial-gradient(500px 300px at 90% 20%, rgba(14,116,144,.16), transparent 58%),
        linear-gradient(180deg, rgba(255,255,255,.95), rgba(248,247,244,.72));
      border:1px solid rgba(20,28,45,.10);
      overflow:hidden;
    }
    .trace{
      position:absolute;
      left:-20%;
      top:8%;
      width:140%;
      height:34%;
      background: linear-gradient(90deg, rgba(42,91,215,.08), rgba(14,116,144,.10));
      filter: blur(0.2px);
      transform: translateX(-30%);
      animation: slide 3.2s ease-in-out infinite;
      border-radius: 999px;
      opacity:.75;
    }
    @keyframes slide{
      0%,100%{transform: translateX(-35%)}
      50%{transform: translateX(5%)}
    }
    .icon-row{
      position:absolute;
      inset:auto 14px 14px 14px;
      display:flex;
      gap:10px;
    }
    .mini-card{
      flex:1;
      background: rgba(255,255,255,.72);
      border:1px solid rgba(20,28,45,.10);
      border-radius: 14px;
      padding:10px 10px;
      box-shadow: 0 10px 24px rgba(18,28,45,.08);
      transform-origin: center;
    }
    .mini-title{
      display:block;
      color:var(--muted);
      font-size:12px;
      font-weight:800;
      margin-bottom:6px;
    }
    .mini-value{
      display:block;
      font-size:14px;
      font-weight:950;
      letter-spacing:-.2px;
    }
    .bezel{
      position:absolute;
      inset: 0;
      border-radius: 26px;
      pointer-events:none;
      background: linear-gradient(180deg, rgba(20,28,45,.04), transparent 30%, rgba(20,28,45,.06));
    }
    .glow{
      position:absolute;
      width:240px; height:240px;
      background: radial-gradient(circle at 30% 30%, rgba(42,91,215,.22), transparent 60%);
      bottom: -40px;
      right: -60px;
      filter: blur(2px);
      pointer-events:none;
      opacity:.8;
    }

    .section{
      padding:34px 0;
    }
    .section.alt-bg{
      background: linear-gradient(180deg, rgba(255,255,255,.0), rgba(255,255,255,.30));
    }
    .section.alt-bg2{
      background:
        radial-gradient(900px 420px at 20% 0%, rgba(42,91,215,.10), transparent 55%),
        radial-gradient(900px 460px at 85% 20%, rgba(14,116,144,.10), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.35), rgba(255,255,255,.18));
      border-top:1px solid rgba(20,28,45,.06);
      border-bottom:1px solid rgba(20,28,45,.06);
    }
    .section-head{
      margin-bottom:18px;
    }
    h2{
      margin:0 0 8px;
      font-size:26px;
      letter-spacing:-.4px;
      line-height:1.25;
    }
    .sub{margin:0; color:var(--muted); font-weight:650; max-width:70ch;}

    .grid-2{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
    }
    .cards{
      align-items:stretch;
    }
    .card{
      background: rgba(255,255,255,.72);
      border:1px solid rgba(20,28,45,.10);
      border-radius: var(--radius);
      padding:18px 18px;
      box-shadow: 0 14px 40px rgba(18,28,45,.06);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .card:hover{
      transform: translateY(-2px);
      box-shadow: 0 20px 60px rgba(18,28,45,.10);
      border-color: rgba(42,91,215,.20);
    }
    .card h3{
      margin:0 0 10px;
      font-size:16px;
      letter-spacing:-.2px;
    }
    .list{
      margin:0;
      padding-left:18px;
      color:var(--muted);
      font-weight:650;
      font-size:14px;
    }
    .list li{margin:8px 0}

    .steps{
      display:flex;
      flex-direction:column;
      gap:12px;
      margin-top:14px;
    }
    .step{
      display:flex;
      gap:14px;
      align-items:flex-start;
      padding:16px 16px;
      border-radius: var(--radius);
      background: rgba(255,255,255,.70);
      border:1px solid rgba(20,28,45,.10);
      box-shadow: 0 14px 40px rgba(18,28,45,.06);
      transition: transform .18s ease, box-shadow .18s ease;
    }
    .step:hover{
      transform: translateY(-2px);
      box-shadow: 0 20px 60px rgba(18,28,45,.10);
    }
    .step-num{
      width:34px; height:34px;
      border-radius:12px;
      background: rgba(42,91,215,.12);
      border:1px solid rgba(42,91,215,.22);
      display:flex;
      align-items:center;
      justify-content:center;
      font-weight:1000;
      color:#1743a6;
      flex:0 0 auto;
    }
    .step-body h3{
      margin:0 0 6px;
      font-size:15px;
      letter-spacing:-.2px;
    }
    .step-body p{
      margin:0;
      color:var(--muted);
      font-weight:650;
      font-size:14px;
    }

    .callout{
      margin-top:14px;
      display:flex;
      gap:14px;
      align-items:flex-start;
      padding:16px 16px;
      border-radius: var(--radius);
      border:1px solid rgba(14,116,144,.22);
      background: rgba(14,116,144,.08);
    }
    .callout-icon{
      width:34px; height:34px;
      border-radius:12px;
      background: rgba(14,116,144,.18);
      border:1px solid rgba(14,116,144,.30);
      display:flex;
      align-items:center;
      justify-content:center;
      font-weight:1000;
      color: var(--accent2);
      flex:0 0 auto;
    }
    .callout-text h3{
      margin:0 0 6px;
      font-size:15px;
      letter-spacing:-.2px;
    }
    .callout-text p{
      margin:0;
      color:rgba(27,40,58,.82);
      font-weight:650;
      font-size:14px;
    }

    .faq{
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .faq-item{
      background: rgba(255,255,255,.72);
      border:1px solid rgba(20,28,45,.10);
      border-radius: var(--radius);
      padding:12px 14px;
      box-shadow: 0 14px 40px rgba(18,28,45,.06);
      overflow:hidden;
    }
    .faq-item summary{
      cursor:pointer;
      font-weight:950;
      letter-spacing:-.2px;
      color:var(--text);
      list-style:none;
      padding-right:18px;
      position:relative;
    }
    .faq-item summary::-webkit-details-marker{display:none;}
    .faq-item summary::after{
      content:"+";
      position:absolute;
      right:0;
      top:0;
      color:var(--muted);
      font-weight:1000;
      transition: transform .2s ease;
    }
    .faq-item[open] summary::after{
      content:"-";
    }
    .faq-body{
      margin-top:10px;
      color:var(--muted);
      font-weight:650;
      font-size:14px;
    }

    .contact{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:18px;
      padding-top:8px;
      padding-bottom:8px;
    }
    .contact-copy{
      flex:1;
      min-width:260px;
      padding:8px 0;
    }
    .contact-copy h2{font-size:24px;}
    .pill-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:14px;
    }
    .pill{
      background: rgba(255,255,255,.62);
      border:1px solid rgba(20,28,45,.10);
      border-radius: 999px;
      padding:9px 12px;
      font-weight:800;
      color:var(--muted);
      font-size:13px;
    }

    .contact-form{
      width: 520px;
      max-width:100%;
      background: rgba(255,255,255,.72);
      border:1px solid rgba(20,28,45,.10);
      border-radius: var(--radius2);
      padding:16px;
      box-shadow: 0 18px 60px rgba(18,28,45,.08);
    }
    .form-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      align-items:start;
    }
    .field{
      display:flex;
      flex-direction:column;
      gap:8px;
    }
    .field-full{grid-column: 1 / -1;}
    .label-text{
      font-weight:900;
      font-size:13px;
      color:var(--text);
    }
    input, textarea{
      width:100%;
      border-radius:14px;
      border:1px solid rgba(20,28,45,.14);
      padding:12px 12px;
      font-size:14px;
      color:var(--text);
      background: rgba(255,255,255,.78);
      outline:none;
      transition: border-color .15s ease, box-shadow .15s ease, background .15s ease;
    }
    textarea{resize: vertical; min-height:110px; max-height:260px;}
    input:focus, textarea:focus{
      border-color: rgba(42,91,215,.40);
      box-shadow: 0 0 0 4px rgba(42,91,215,.12);
      background:#fff;
    }

    .btn-block{width:100%}
    .form-status{
      margin-top:10px;
      min-height:20px;
      font-weight:850;
      font-size:13px;
      color:var(--muted);
    }
    .form-status.is-success{color:#0b6b3b;}
    .form-status.is-error{color:#b42318;}
    .form-status.is-warn{color:#8a5a00;}
    .form-status.is-info{color:#1f4fd2;}

    .related{
      padding-top:26px;
    }
    .related-title{
      margin-bottom:14px;
      font-size:22px;
    }
    .related-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    .related-card{
      text-decoration:none;
      background: rgba(255,255,255,.72);
      border:1px solid rgba(20,28,45,.10);
      border-radius: 16px;
      padding:14px 14px;
      font-weight:950;
      color:var(--text);
      box-shadow: 0 14px 40px rgba(18,28,45,.06);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      line-height:1.3;
      min-height:52px;
      display:flex;
      align-items:center;
    }
    .related-card:hover{
      transform: translateY(-2px);
      box-shadow: 0 20px 60px rgba(18,28,45,.10);
      border-color: rgba(42,91,215,.20);
    }

    .site-footer{
      background: #121827;
      color:#e7ebf3;
      border-top:1px solid rgba(255,255,255,.10);
      padding:22px 0 12px;
    }
    .footer-inner{
      display:flex;
      justify-content:space-between;
      gap:16px;
      align-items:flex-start;
      flex-wrap:wrap;
    }
    .footer-brand{
      font-weight:1000;
      letter-spacing:.3px;
      margin-bottom:8px;
      font-size:14px;
    }
    .footer-text{
      color: rgba(231,235,243,.78);
      font-weight:650;
      font-size:13px;
      max-width:56ch;
    }
    .footer-right{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .footer-link{
      color:#e7ebf3;
      text-decoration:none;
      font-weight:900;
      font-size:13px;
      padding:10px 12px;
      border-radius:12px;
      border:1px solid rgba(255,255,255,.14);
      background: rgba(255,255,255,.06);
      transition: transform .15s ease, background .15s ease, border-color .15s ease;
      white-space:nowrap;
    }
    .footer-link:hover{
      transform: translateY(-1px);
      background: rgba(255,255,255,.10);
      border-color: rgba(255,255,255,.22);
    }
    .footer-bottom{
      margin-top:16px;
      padding-top:14px;
      border-top:1px solid rgba(255,255,255,.10);
      display:flex;
      justify-content:space-between;
      gap:10px;
      flex-wrap:wrap;
      color: rgba(231,235,243,.72);
      font-weight:700;
      font-size:12px;
    }
    .muted{color: rgba(231,235,243,.60);}

    @media (max-width: 980px){
      h1{font-size:34px;}
      .hero-inner{flex-direction:column;}
      .hero-visual{width:100%;}
      .device{width:min(360px, 100%);}
      .grid-2{grid-template-columns:1fr;}
      .contact{flex-direction:column;}
      .contact-form{width:100%;}
      .related-grid{grid-template-columns: repeat(2, 1fr);}
      .nav-links{display:none;}
      .nav-toggle{display:inline-flex;}
      .mobile-menu{display:none;}
    }
    @media (max-width: 560px){
      .container{width: min(var(--container), calc(100% - 22px));}
      h1{font-size:30px;}
      .hero-copy{padding:16px;}
      .hero-note{width:100%;}
      .form-grid{grid-template-columns:1fr;}
      .related-grid{grid-template-columns:1fr;}
    }

    @media (prefers-reduced-motion: reduce){
      .trace{animation:none;}
      .card, .step, .related-card, .btn, .nav-cta{transition:none;}
    }