:root{
    --ink:#0d1a33;
    --ink-2:#41547a;
    --ink-3:#657799;
    --line:#e2ebf9;
    --brand:#1d6bff;
    --brand-d:#0e4fd1;
    --teal:#00b8a9;
    --violet:#7b4dff;
    --bg:#f5f9ff;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;scroll-padding-top:92px;-webkit-text-size-adjust:100%}
  body{
    margin:0;
    position:relative;
    background-color:#f5f9ff;
    color:var(--ink);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:-1;
    pointer-events:none;
    background:
      radial-gradient(900px 560px at 6% -8%, #dbebff 0%, rgba(219,235,255,0) 62%),
      radial-gradient(820px 520px at 98% 2%, #d9fff6 0%, rgba(217,255,246,0) 58%),
      radial-gradient(900px 620px at 50% 112%, #ebe4ff 0%, rgba(235,228,255,0) 60%),
      #f5f9ff;
  }
  img{max-width:100%}
  a{color:inherit;text-decoration:none}
  h1,h2,h3{color:#0b1730;letter-spacing:-.01em}
  .wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(255,255,255,.9);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(203,221,248,.9);
    transition:box-shadow .3s ease;
  }
  .site-header.scrolled{box-shadow:0 14px 32px -24px rgba(16,50,120,.75)}
  .header-inner{display:flex;align-items:center;gap:14px;min-height:70px}
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;max-width:220px;font-weight:800;font-size:17px;color:#0b1730}
  .brand .ai-page-logo{display:block;width:auto;max-height:34px;object-fit:contain}
  .brand-name{white-space:nowrap}
  .nav{margin-left:auto}
  .nav-links{display:flex;align-items:center;gap:0;list-style:none;margin:0;padding:0}
  .nav-links a{display:block;padding:9px 11px;font-size:14px;color:var(--ink-2);border-radius:10px;white-space:nowrap;transition:color .2s ease,background .2s ease}
  .nav-links a:hover{color:var(--brand-d);background:#eef5ff}
  .header-cta{flex:0 0 auto;padding:10px 18px;font-size:14px}
  .nav-toggle{
    display:none;width:40px;height:40px;flex-direction:column;align-items:center;justify-content:center;gap:4px;
    border:1px solid #d8e6fb;background:#fff;border-radius:10px;cursor:pointer;padding:0;transition:border-color .2s ease,box-shadow .2s ease;
  }
  .nav-toggle:hover{border-color:#b6d2ff;box-shadow:0 8px 18px -14px rgba(16,50,120,.9)}
  .nav-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:#31486f}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 24px;border-radius:12px;font-size:15px;font-weight:600;
    border:1px solid transparent;cursor:pointer;white-space:nowrap;
    transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,border-color .22s ease;
  }
  .btn-primary{background:linear-gradient(135deg,#1d6bff,#4b8bff);color:#fff;box-shadow:0 16px 28px -16px rgba(29,107,255,.85)}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 34px -16px rgba(29,107,255,.9)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{background:#fff;color:var(--brand-d);border-color:#c6dcff;box-shadow:0 12px 26px -22px rgba(16,50,120,.9)}
  .btn-ghost:hover{transform:translateY(-2px);border-color:#9cc2ff;box-shadow:0 18px 28px -20px rgba(16,50,120,.85)}

  /* ---------- section base ---------- */
  .section{padding:64px 0}
  .section-head{max-width:820px;margin-bottom:34px}
  .eyebrow{
    display:inline-block;margin:0 0 12px;padding:4px 13px;
    font-size:12.5px;font-weight:700;letter-spacing:.14em;color:#1b5ce0;
    background:#eaf2ff;border:1px solid #d6e6ff;border-radius:999px;
  }
  .section-head h2{font-size:clamp(22px,3vw,31px);line-height:1.36;margin:0 0 12px;font-weight:800}
  .section-sub{margin:0;font-size:15.5px;color:var(--ink-2);max-width:780px}

  /* ---------- hero ---------- */
  .hero{padding:56px 0 44px}
  .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
  .hero-copy{animation:riseIn .7s cubic-bezier(.22,.8,.28,1) both}
  .hero-tag{
    display:inline-flex;align-items:center;gap:8px;margin:0 0 18px;padding:6px 14px;
    background:#fff;border:1px solid #d7e6ff;border-radius:999px;color:#1b4fb8;
    font-size:13px;font-weight:600;box-shadow:0 12px 26px -22px rgba(16,50,120,.95);
  }
  .hero-tag::before{
    content:"";width:7px;height:7px;border-radius:50%;background:#19c37d;
    box-shadow:0 0 0 4px rgba(25,195,125,.16);animation:pulseDot 2.4s ease-in-out infinite;
  }
  @keyframes pulseDot{
    0%,100%{box-shadow:0 0 0 4px rgba(25,195,125,.16)}
    50%{box-shadow:0 0 0 9px rgba(25,195,125,.05)}
  }
  .hero h1{font-size:clamp(29px,4.4vw,47px);line-height:1.22;font-weight:800;margin:0 0 18px;letter-spacing:-.02em}
  .hl{position:relative;z-index:0;white-space:nowrap}
  .hl::after{
    content:"";position:absolute;left:-2px;right:-2px;bottom:.06em;height:.3em;
    background:linear-gradient(90deg,#bfe0ff,#aafff0);border-radius:5px;z-index:-1;
  }
  .hero-desc{margin:0;max-width:600px;font-size:16.5px;color:#42557a}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 22px}
  .hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;list-style:none;margin:0;padding:0;font-size:14px;color:#3b4f76}
  .hero-points li{display:flex;align-items:center;gap:8px}
  .hero-points li::before{content:"✓";font-size:12px;font-weight:700;color:#fff;background:#19c37d;width:17px;height:17px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto}
  .hero-panel{
    padding:24px;border-radius:26px;border:1px solid #d8e8ff;
    background:linear-gradient(150deg,#ffffff,#f1f7ff 68%,#eefbf7);
    box-shadow:0 40px 70px -52px rgba(16,50,120,.95);
    animation:riseIn .8s cubic-bezier(.22,.8,.28,1) .1s both;
  }
  @keyframes riseIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
  .stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:18px}
  .stat{background:#fff;border:1px solid #e6effc;border-radius:14px;padding:14px 16px;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
  .stat:hover{transform:translateY(-3px);border-color:#bcd6ff;box-shadow:0 18px 30px -26px rgba(16,50,120,.95)}
  .stat b{display:block;font-size:23px;line-height:1.2;color:var(--brand-d);font-weight:800}
  .stat span{display:block;margin-top:3px;font-size:12.5px;color:#5b6e92}
  .chips{display:flex;flex-wrap:wrap;gap:8px}
  .chip{font-size:12px;padding:5px 11px;border-radius:999px;background:#eef5ff;border:1px solid #dbe9ff;color:#25548f;transition:background .2s ease,color .2s ease,transform .2s ease}
  .chip:hover{background:#dfebff;color:#0e4fd1;transform:translateY(-2px)}

  /* ---------- reveal ---------- */
  .reveal{opacity:0;transform:translateY(20px);transition:opacity .65s ease,transform .65s ease}
  .reveal.is-in{opacity:1;transform:translateY(0)}

  /* ---------- generic cards & grids ---------- */
  .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;align-items:stretch}
  .card{
    background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;
    box-shadow:0 16px 36px -30px rgba(16,50,120,.75);
    transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  }
  .card:hover{transform:translateY(-5px);border-color:#b9d5ff;box-shadow:0 26px 46px -30px rgba(16,50,120,.75)}

  /* ---------- about ---------- */
  .about-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:30px;align-items:start}
  .about-copy p{margin:0 0 14px;color:var(--ink-2);font-size:15px}
  .sub-title{font-size:17px;margin:0 0 12px}
  .check-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
  .check-list li{position:relative;padding-left:26px;font-size:14.5px;color:#3f5378}
  .check-list li::before{
    content:"";position:absolute;left:0;top:8px;width:14px;height:14px;border-radius:50%;
    background:linear-gradient(135deg,#1d6bff,#00c2b8);
  }
  .check-list li::after{content:"";position:absolute;left:5px;top:11px;width:4px;height:4px;border-radius:50%;background:#fff}
  .mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
  .mini{display:flex;gap:12px;padding:15px;background:#fff;border:1px solid #e4eefb;border-radius:14px;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
  .mini:hover{transform:translateY(-3px);border-color:#bcd6ff;box-shadow:0 18px 32px -30px rgba(16,50,120,.95)}
  .mini-dot{position:relative;flex:0 0 auto;width:26px;height:26px;border-radius:9px;background:linear-gradient(135deg,#1d6bff,#00c2b8)}
  .mini-dot::after{content:"";position:absolute;inset:8px;border-radius:3px;background:#fff}
  .mini h3{margin:0 0 4px;font-size:14.5px}
  .mini p{margin:0;font-size:12.8px;color:var(--ink-3);line-height:1.6}

  /* ---------- services ---------- */
  .svc{position:relative;padding-top:22px;overflow:hidden}
  .svc::before{content:"";position:absolute;left:22px;top:0;width:38px;height:3px;border-radius:3px;background:linear-gradient(90deg,#1d6bff,#7fb4ff)}
  .svc:nth-child(3n+2)::before{background:linear-gradient(90deg,#00b8a9,#7ff0e2)}
  .svc:nth-child(3n+3)::before{background:linear-gradient(90deg,#7b4dff,#bda2ff)}
  .svc h3{margin:0 0 8px;font-size:17px}
  .svc p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.68}
  .tag-cloud{margin-top:22px;padding:22px;background:rgba(255,255,255,.78);border:1px solid #e2ebf9;border-radius:18px}
  .tag-cloud-title{margin:0 0 12px;font-size:14px;font-weight:700;color:#2b4269}

  /* ---------- onestop ---------- */
  .onestop-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}
  .media-stack{display:grid;gap:16px}
  .media-frame{margin:0;border-radius:18px;overflow:hidden;border:1px solid #dfeaf9;background:#fff;box-shadow:0 22px 44px -36px rgba(16,50,120,.95)}
  .media-frame img{display:block;width:100%;height:auto}
  .step-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
  .step-list li{display:grid;grid-template-columns:38px 1fr;gap:14px;padding:16px 18px;background:#fff;border:1px solid #e4eefb;border-radius:14px;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
  .step-list li:hover{transform:translateX(4px);border-color:#bcd6ff;box-shadow:0 18px 34px -30px rgba(16,50,120,.95)}
  .step-no{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#e8f1ff,#dcfff9);color:var(--brand-d);font-weight:800;font-size:14px}
  .step-list h3{margin:0 0 4px;font-size:15.5px}
  .step-list p{margin:0;font-size:13.8px;color:var(--ink-3);line-height:1.6}

  /* ---------- industry ---------- */
  .industry-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
  .ind-item{display:grid;grid-template-columns:150px 1fr;gap:16px;align-items:start;padding:18px 20px;background:#fff;border:1px solid #e4eefb;border-radius:14px;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
  .ind-item:hover{transform:translateY(-3px);border-color:#bcd6ff;box-shadow:0 20px 36px -32px rgba(16,50,120,.95)}
  .ind-tag{margin:0;font-size:14.5px;font-weight:700;color:#0e4fd1}
  .ind-desc{margin:0;font-size:13.8px;color:var(--ink-2);line-height:1.66}

  /* ---------- network ---------- */
  .net-card h3{margin:0 0 6px;font-size:16px}
  .net-card p{margin:0;font-size:13.8px;color:var(--ink-2)}
  .net-card .net-val{display:inline-block;margin-top:10px;font-size:13px;font-weight:700;color:#0e4fd1;background:#eef5ff;border:1px solid #dbe9ff;border-radius:999px;padding:3px 11px}

  /* ---------- timeline ---------- */
  .timeline{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}
  .tl-item{position:relative;padding:20px 18px;background:#fff;border:1px solid #e4eefb;border-radius:16px;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
  .tl-item:hover{transform:translateY(-4px);border-color:#bcd6ff;box-shadow:0 20px 38px -32px rgba(16,50,120,.95)}
  .tl-no{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;margin-bottom:10px;border-radius:9px;background:linear-gradient(135deg,#1d6bff,#00c2b8);color:#fff;font-size:13px;font-weight:800}
  .tl-item h3{margin:0 0 6px;font-size:15px}
  .tl-item p{margin:0;font-size:13.4px;color:var(--ink-3);line-height:1.6}

  /* ---------- cases ---------- */
  .case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;align-items:start}
  .case-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;box-shadow:0 16px 36px -30px rgba(16,50,120,.75)}
  .case-card:hover{transform:translateY(-5px);border-color:#b9d5ff;box-shadow:0 26px 46px -30px rgba(16,50,120,.75)}
  .case-media{background:#f2f7ff}
  .case-media img{display:block;width:100%;height:auto}
  .case-body{padding:18px 20px 22px}
  .case-body h3{margin:0 0 8px;font-size:16.5px}
  .case-body p{margin:0;font-size:13.8px;color:var(--ink-2);line-height:1.65}

  /* ---------- compare ---------- */
  .compare-top{display:grid;grid-template-columns:300px 1fr;gap:20px;align-items:stretch;margin-bottom:24px}
  .rate-card{
    padding:24px;border-radius:20px;text-align:center;color:#fff;
    background:linear-gradient(150deg,#0f3fa8,#1d6bff 62%,#12a8c8);
    box-shadow:0 30px 56px -38px rgba(16,50,140,.95);
  }
  .rate-label{margin:0 0 6px;font-size:13px;letter-spacing:.1em;color:#dbe9ff}
  .rate-score{margin:0;line-height:1.1}
  .rate-score strong{font-size:52px;font-weight:800;letter-spacing:-.02em}
  .rate-score span{font-size:16px;color:#dbe9ff;margin-left:4px}
  .rate-stars{margin:10px 0 4px;font-size:20px;color:#ffd76a;letter-spacing:3px}
  .rate-note{margin:0;font-size:13px;color:#e4eeff}
  .rate-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;list-style:none;margin:0;padding:0}
  .rate-points li{background:#fff;border:1px solid #e4eefb;border-radius:14px;padding:14px 16px;font-size:13.8px;color:var(--ink-2);transition:border-color .25s ease,transform .25s ease}
  .rate-points li:hover{border-color:#bcd6ff;transform:translateY(-2px)}
  .rate-points strong{display:block;color:#0b1730;font-size:14.5px;margin-bottom:3px}

  /* ---------- tables ---------- */
  .table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 18px 40px -34px rgba(16,50,120,.9)}
  table{width:100%;border-collapse:collapse;min-width:620px}
  thead th{background:#eef5ff;color:#16325e;font-size:14px;font-weight:700;text-align:left;padding:14px 16px;border-bottom:1px solid #dbe7f8;white-space:nowrap}
  tbody td{padding:13px 16px;font-size:13.8px;color:var(--ink-2);border-bottom:1px solid #f0f5fc;vertical-align:top}
  tbody tr:last-child td{border-bottom:0}
  tbody tr:nth-child(even){background:#fbfdff}
  tbody tr:hover{background:#f4f9ff}
  tbody td:first-child{color:#0b1730;font-weight:600}
  .td-strong{color:#0e4fd1;font-weight:700}
  .table-note{margin:12px 0 0;font-size:13px;color:var(--ink-3)}

  /* ---------- reviews ---------- */
  .review{display:flex;flex-direction:column;gap:12px}
  .review-head{display:flex;align-items:center;gap:12px}
  .avatar{width:40px;height:40px;flex:0 0 auto;border-radius:12px;display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:15px;background:linear-gradient(135deg,#1d6bff,#00c2b8)}
  .review:nth-child(3n+2) .avatar{background:linear-gradient(135deg,#7b4dff,#59a4ff)}
  .review:nth-child(3n+3) .avatar{background:linear-gradient(135deg,#00b8a9,#7fe0a0)}
  .review-name{margin:0;font-size:14.5px;font-weight:700;color:#0b1730}
  .review-role{margin:0;font-size:12.5px;color:var(--ink-3)}
  .review-text{margin:0;font-size:14px;color:var(--ink-2);line-height:1.72}

  /* ---------- join / cta band ---------- */
  .join-card{
    position:relative;overflow:hidden;padding:38px 34px;border-radius:24px;color:#fff;
    background:linear-gradient(135deg,#0d3a9e,#1d6bff 55%,#0fb3b0);
    box-shadow:0 40px 70px -52px rgba(16,50,140,.95);
  }
  .join-card::after{
    content:"";position:absolute;right:-70px;top:-70px;width:260px;height:260px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,255,255,.22),rgba(255,255,255,0) 68%);
  }
  .join-grid{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}
  .join-card h2{margin:0 0 12px;color:#fff;font-size:clamp(21px,2.8vw,28px)}
  .join-card p{margin:0 0 16px;color:#dbe9ff;font-size:14.8px}
  .join-list{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:8px}
  .join-list li{position:relative;padding-left:22px;font-size:14px;color:#e8f1ff}
  .join-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:#7ff0e2}
  .join-side{display:grid;grid-template-columns:1fr 1fr;gap:12px}
  .join-stat{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);border-radius:14px;padding:16px}
  .join-stat strong{display:block;font-size:19px;color:#fff}
  .join-stat span{font-size:12.5px;color:#dbe9ff}
  .btn-light{background:#fff;color:#0e3fa8;border-color:#fff;box-shadow:0 18px 30px -18px rgba(0,0,0,.5)}
  .btn-light:hover{transform:translateY(-2px);box-shadow:0 22px 34px -18px rgba(0,0,0,.55)}

  /* ---------- faq ---------- */
  .faq-list{display:grid;gap:12px}
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 18px;transition:border-color .25s ease,box-shadow .25s ease}
  .faq-item:hover{border-color:#c3d9fb;box-shadow:0 18px 34px -32px rgba(16,50,120,.95)}
  .faq-item[open]{border-color:#b9d5ff;box-shadow:0 20px 38px -32px rgba(16,50,120,.95)}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
    padding:16px 0;font-size:15px;font-weight:600;color:#0b1730;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary::after{
    content:"+";flex:0 0 auto;width:24px;height:24px;border-radius:8px;display:flex;align-items:center;justify-content:center;
    background:#eef5ff;color:#0e4fd1;font-size:16px;font-weight:700;transition:transform .25s ease,background .25s ease;
  }
  .faq-item[open] summary::after{content:"−";background:#dbe9ff;transform:rotate(180deg)}
  .faq-answer{margin:0;padding:0 0 18px;font-size:14px;color:var(--ink-2);line-height:1.75;max-width:900px}

  /* ---------- articles ---------- */
  .article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
  .article-card{
    display:flex;flex-direction:column;gap:8px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:16px;
    transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  }
  .article-card:hover{transform:translateY(-4px);border-color:#b9d5ff;box-shadow:0 22px 40px -32px rgba(16,50,120,.95)}
  .article-card h3{margin:0;font-size:15.5px;line-height:1.5}
  .article-card p{margin:0;font-size:13.4px;color:var(--ink-3);line-height:1.6}
  .article-more{margin-top:auto;font-size:13px;font-weight:700;color:#0e4fd1}
  .article-slot{margin:16px 0 0;font-size:13px;color:var(--ink-3)}

  /* ---------- contact ---------- */
  .contact-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:30px;align-items:start}
  .contact-info h2{font-size:clamp(21px,2.8vw,28px);margin:0 0 12px;font-weight:800}
  .contact-info > p{margin:0 0 18px;font-size:15px;color:var(--ink-2)}
  .contact-list{list-style:none;margin:0 0 22px;padding:0;display:grid;gap:10px}
  .contact-list li{display:grid;grid-template-columns:88px 1fr;gap:12px;font-size:14px;color:var(--ink-2);padding-bottom:10px;border-bottom:1px dashed #e2ebf9}
  .contact-list li span:first-child{color:var(--ink-3);font-size:13.5px}
  .contact-list a{color:#0e4fd1;font-weight:600}
  .contact-list a:hover{text-decoration:underline}
  .qr-box{display:flex;align-items:center;gap:14px;padding:14px;background:#fff;border:1px solid #e4eefb;border-radius:16px;max-width:320px}
  .qr-box img{display:block;width:96px;height:96px;object-fit:contain;border-radius:10px;background:#f4f8ff}
  .qr-box span{font-size:13.5px;color:var(--ink-2);line-height:1.6}

  .lead-form{background:#fff;border:1px solid #e2ebf9;border-radius:20px;padding:26px;box-shadow:0 26px 54px -44px rgba(16,50,120,.95);display:grid;gap:14px}
  .form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
  .field{display:grid;gap:6px;min-width:0}
  .field > span{font-size:13.5px;font-weight:600;color:#2b4269}
  .field input,.field select,.field textarea{
    width:100%;padding:11px 13px;border:1px solid #dfe8f7;border-radius:10px;background:#fbfdff;
    font-size:14px;color:#0d1a33;font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .field textarea{resize:vertical;min-height:98px;line-height:1.6}
  .field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:#7fb0ff;background:#fff;box-shadow:0 0 0 3px rgba(29,107,255,.14)}
  .field input::placeholder,.field textarea::placeholder{color:#9aabc7}
  .form-tip{margin:0;font-size:12.5px;color:var(--ink-3)}
  .lead-form .btn{width:100%}

  /* ---------- footer ---------- */
  .site-footer{margin-top:8px;background:linear-gradient(180deg,#0c1a33,#0a1526);color:#b9c9e6;padding:44px 0 0}
  .footer-top{display:grid;grid-template-columns:1.05fr 1.2fr;gap:32px;padding-bottom:30px}
  .footer-brand p{margin:0 0 10px;font-size:14px;color:#b9c9e6;line-height:1.75;max-width:460px}
  .footer-name{font-size:17px;font-weight:800;color:#ffffff;margin:0 0 10px}
  .footer-links-title{margin:0 0 14px;font-size:15px;font-weight:700;color:#ffffff}
  .footer-links ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px 18px}
  .footer-links a{font-size:13.6px;color:#b9c9e6;transition:color .2s ease}
  .footer-links a:hover{color:#ffffff}
  .footer-home{display:inline-block;margin-right:14px;font-size:13.6px;font-weight:600;color:#7fd8ff}
  .footer-home:hover{color:#ffffff}
  .footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:16px 0 20px;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;align-items:center}
  .footer-bottom p{margin:0;font-size:13px;color:#93a7c9}

  /* ---------- float actions ---------- */
  .float-actions{position:fixed;right:18px;bottom:18px;z-index:90;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
  .float-btn{
    display:inline-flex;align-items:center;justify-content:center;
    width:50px;height:50px;border-radius:16px;border:1px solid #d5e4fa;background:#fff;color:#0e4fd1;
    font-size:13px;font-weight:700;cursor:pointer;box-shadow:0 18px 32px -22px rgba(16,50,120,.95);
    transition:transform .22s ease,box-shadow .22s ease,background .22s ease;
  }
  .float-btn:hover{transform:translateY(-3px);background:#f2f8ff;box-shadow:0 24px 36px -22px rgba(16,50,120,.95)}
  .float-kf{background:linear-gradient(135deg,#1d6bff,#00b8a9);color:#fff;border-color:transparent}
  .float-kf:hover{background:linear-gradient(135deg,#1560ec,#00a396)}
  .float-top{opacity:0;pointer-events:none;transform:translateY(8px)}
  .float-top.is-visible{opacity:1;pointer-events:auto;transform:translateY(0)}
  .kf-panel{
    width:206px;padding:16px;border-radius:16px;background:#fff;border:1px solid #dfe8f7;
    box-shadow:0 26px 46px -26px rgba(16,50,120,.95);text-align:center;
  }
  .kf-panel p{margin:0}
  .kf-title{font-size:14px;font-weight:700;color:#0b1730;margin-bottom:10px !important}
  .kf-qr{display:block;width:100%;height:auto;border-radius:10px;background:#f4f8ff}
  .kf-note{margin-top:10px !important;font-size:12px;color:var(--ink-3);line-height:1.6}

  /* ---------- responsive ---------- */
  @media (max-width:1080px){
    .nav{
      position:absolute;top:100%;left:0;right:0;display:none;
      background:#fff;border-bottom:1px solid #e2ebf9;padding:10px 20px 16px;
      box-shadow:0 26px 44px -34px rgba(16,50,120,.95);
    }
    .nav.is-open{display:block}
    .nav-links{flex-direction:column;align-items:stretch;gap:0}
    .nav-links a{padding:12px 6px;border-bottom:1px solid #f0f5fc;border-radius:0}
    .nav-links li:last-child a{border-bottom:0}
    .header-cta{margin-left:auto;padding:9px 14px;font-size:13px}
    .nav-toggle{display:flex}
  }
  @media (max-width:980px){
    .hero-grid{grid-template-columns:1fr;gap:28px}
    .hero{padding:40px 0 36px}
    .about-grid{grid-template-columns:1fr}
    .onestop-grid{grid-template-columns:1fr}
    .compare-top{grid-template-columns:1fr}
    .industrial-placeholder{display:none}
    .timeline{grid-template-columns:1fr 1fr}
    .case-grid{grid-template-columns:1fr 1fr}
    .article-grid{grid-template-columns:1fr 1fr}
    .contact-grid{grid-template-columns:1fr}
    .join-grid{grid-template-columns:1fr}
    .footer-top{grid-template-columns:1fr}
  }
  @media (max-width:760px){
    .section{padding:48px 0}
    .grid-3{grid-template-columns:1fr 1fr}
    .industry-grid{grid-template-columns:1fr}
    .ind-item{grid-template-columns:1fr;gap:6px}
    .rate-points{grid-template-columns:1fr}
    .mini-grid{grid-template-columns:1fr}
  }
  @media (max-width:600px){
    .grid-3{grid-template-columns:1fr}
    .timeline{grid-template-columns:1fr}
    .case-grid{grid-template-columns:1fr}
    .article-grid{grid-template-columns:1fr}
    .form-row{grid-template-columns:1fr}
    .join-side{grid-template-columns:1fr}
    .hero-actions .btn{flex:1 1 100%}
    .brand-name{display:none}
    .join-card{padding:26px 20px}
    .lead-form{padding:20px}
    .stat-grid{gap:10px}
    .float-btn{width:46px;height:46px;border-radius:14px;font-size:12px}
  }
  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
    .reveal{opacity:1;transform:none}
  }