:root{
      --bg:#f6f7fb;
      --bg2:#eef4ff;
      --card:#ffffff;
      --text:#192132;
      --muted:#5f6b7f;
      --line:#dbe3f0;
      --brand:#2563eb;
      --brand2:#22c55e;
      --accent:#f97316;
      --shadow:0 14px 40px rgba(31,41,55,.09);
      --shadow2:0 10px 24px rgba(37,99,235,.14);
      --radius:18px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(37,99,235,.11), transparent 34%),
        radial-gradient(circle at top right, rgba(34,197,94,.11), transparent 28%),
        linear-gradient(180deg, #ffffff 0%, var(--bg) 34%, #f7f9fd 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max), calc(100% - 32px)); margin:0 auto}
    header{
      position:sticky; top:0; z-index:60;
      backdrop-filter:saturate(180%) blur(14px);
      background:rgba(246,247,251,.82);
      border-bottom:1px solid rgba(219,227,240,.85);
    }
    .topbar{display:flex; align-items:center; justify-content:space-between; gap:16px; padding:12px 0}
    .brand{display:flex; align-items:center; gap:12px; min-width:0}
    .brand .ai-page-logo{width:42px; height:42px; object-fit:contain; border-radius:12px; background:#fff; box-shadow:0 4px 16px rgba(0,0,0,.06)}
    .brand strong{display:block; font-size:1.02rem}
    .brand span{display:block; font-size:.84rem; color:var(--muted)}
    .nav-toggle{display:none; border:1px solid var(--line); background:#fff; border-radius:12px; padding:10px 12px; color:var(--text)}
    nav{display:flex; align-items:center; gap:14px; flex-wrap:wrap; justify-content:flex-end}
    nav a{font-size:.94rem; color:#304055; padding:8px 10px; border-radius:10px}
    nav a:hover{background:#eaf2ff; color:#1742a5}
    .btn, .btn-ghost{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      padding:12px 16px; border-radius:14px; font-weight:700; border:1px solid transparent;
      transition:.22s ease; cursor:pointer; white-space:nowrap
    }
    .btn{background:linear-gradient(135deg, var(--brand), #6d28d9); color:#fff; box-shadow:var(--shadow2)}
    .btn:hover{transform:translateY(-2px); box-shadow:0 18px 30px rgba(37,99,235,.22)}
    .btn-ghost{background:#fff; color:var(--text); border-color:var(--line)}
    .btn-ghost:hover{transform:translateY(-2px); border-color:#b8c7e3; box-shadow:var(--shadow)}
    main{padding:22px 0 28px}
    section{padding:26px 0}
    .hero{
      padding-top:18px;
    }
    .hero-grid{
      display:grid; grid-template-columns:1.2fr .8fr; gap:22px; align-items:stretch
    }
    .hero-card{
      background:
        linear-gradient(135deg, rgba(37,99,235,.10), rgba(34,197,94,.08) 45%, rgba(249,115,22,.06)),
        linear-gradient(180deg, #fff, #fbfdff);
      border:1px solid rgba(219,227,240,.85);
      border-radius:28px;
      padding:28px;
      box-shadow:var(--shadow);
      position:relative; overflow:hidden
    }
    .hero-card::before,.hero-card::after{
      content:""; position:absolute; border-radius:999px; pointer-events:none
    }
    .hero-card::before{width:220px;height:220px;background:radial-gradient(circle, rgba(37,99,235,.18), transparent 68%); top:-80px; right:-60px}
    .hero-card::after{width:180px;height:180px;background:radial-gradient(circle, rgba(34,197,94,.16), transparent 68%); bottom:-70px; left:-40px}
    .kicker{display:inline-flex; gap:8px; align-items:center; padding:8px 12px; border-radius:999px; background:#eef5ff; color:#1d4ed8; font-weight:700; font-size:.9rem}
    h1{margin:16px 0 12px; font-size:clamp(2rem, 4vw, 3.5rem); line-height:1.08; letter-spacing:-.03em}
    .lead{margin:0; font-size:1.05rem; line-height:1.9; color:#314158; max-width:62ch}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:22px}
    .hero-points{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px; margin-top:22px}
    .mini-stat{
      background:rgba(255,255,255,.8);
      border:1px solid rgba(219,227,240,.9);
      border-radius:18px;
      padding:14px 16px;
      box-shadow:0 8px 20px rgba(15,23,42,.05)
    }
    .mini-stat strong{display:block; font-size:1.18rem}
    .mini-stat span{display:block; margin-top:4px; color:var(--muted); font-size:.88rem; line-height:1.5}
    .hero-aside{
      display:grid; gap:16px
    }
    .glass{
      background:rgba(255,255,255,.82);
      border:1px solid rgba(219,227,240,.9);
      border-radius:24px;
      padding:18px;
      box-shadow:var(--shadow)
    }
    .glass h2,.section-title{margin:0 0 10px; font-size:1.5rem}
    .section-sub{margin:0; color:var(--muted); line-height:1.8}
    .stat-row{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:12px; margin-top:16px}
    .stat{
      background:linear-gradient(180deg,#fff,#f8fbff);
      border:1px solid var(--line);
      border-radius:18px;
      padding:14px;
      text-align:center
    }
    .stat b{display:block; font-size:1.2rem}
    .stat small{color:var(--muted)}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px; margin-top:14px}
    .tag{padding:9px 12px; background:#f4f7ff; border:1px solid #dbe5fb; border-radius:999px; color:#27406f; font-size:.88rem}
    .grid-3{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px}
    .grid-2{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px}
    .card{
      background:var(--card);
      border:1px solid var(--line);
      border-radius:22px;
      padding:20px;
      box-shadow:0 10px 28px rgba(15,23,42,.05);
      transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .card:hover{transform:translateY(-3px); box-shadow:var(--shadow); border-color:#c9d7ec}
    .card h3{margin:0 0 10px; font-size:1.1rem}
    .card p{margin:0; color:var(--muted); line-height:1.85}
    .eyebrow{display:inline-flex; font-size:.82rem; color:#1d4ed8; background:#eef5ff; padding:6px 10px; border-radius:999px; margin-bottom:10px}
    .metrics .card b{font-size:1.8rem}
    .timeline{display:grid; gap:14px}
    .step{
      display:grid; grid-template-columns:auto 1fr; gap:14px; align-items:start;
      padding:18px; border-radius:18px; background:#fff; border:1px solid var(--line)
    }
    .step i{
      width:38px; height:38px; border-radius:14px; display:grid; place-items:center;
      background:linear-gradient(135deg,#2563eb,#22c55e); color:#fff; font-style:normal; font-weight:800
    }
    .table-wrap{overflow:auto; border:1px solid var(--line); border-radius:18px; background:#fff; box-shadow:0 10px 24px rgba(15,23,42,.05)}
    table{width:100%; border-collapse:collapse; min-width:760px}
    th,td{padding:14px 16px; border-bottom:1px solid #e8eef7; text-align:left; vertical-align:top}
    th{background:#f6f9ff; color:#21314c}
    tr:hover td{background:#fbfdff}
    .check{color:#16a34a; font-weight:700}
    .x{color:#dc2626; font-weight:700}
    .accordion{display:grid; gap:12px}
    .faq-item{border:1px solid var(--line); border-radius:18px; background:#fff; overflow:hidden}
    .faq-q{
      width:100%; text-align:left; padding:16px 18px; background:linear-gradient(180deg,#fff,#f9fbff);
      border:0; color:var(--text); font-size:1rem; font-weight:700; display:flex; justify-content:space-between; gap:16px; cursor:pointer
    }
    .faq-a{max-height:0; overflow:hidden; transition:max-height .25s ease; color:var(--muted); padding:0 18px}
    .faq-item.open .faq-a{max-height:180px; padding-bottom:16px}
    .quotes{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px}
    .quote{
      background:linear-gradient(180deg,#fff,#fbfdff);
      border:1px solid var(--line);
      border-radius:22px;
      padding:18px
    }
    .quote p{margin:10px 0 14px; color:#42526b; line-height:1.8}
    .avatar{display:flex; align-items:center; gap:12px}
    .avatar span{width:42px; height:42px; border-radius:50%; display:grid; place-items:center; background:#eaf2ff; color:#1d4ed8; font-weight:800}
    .article-list{display:grid; gap:12px}
    .article{
      display:flex; justify-content:space-between; gap:14px; align-items:center;
      padding:16px 18px; border-radius:18px; background:#fff; border:1px solid var(--line)
    }
    .article small{color:var(--muted)}
    .form{
      display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px
    }
    .field{display:grid; gap:8px}
    .field.full{grid-column:1 / -1}
    label{font-weight:700; font-size:.95rem}
    input,select,textarea{
      width:100%; border:1px solid #cad5e6; background:#fff; color:var(--text);
      border-radius:14px; padding:13px 14px; font:inherit; outline:none; transition:border-color .2s ease, box-shadow .2s ease
    }
    textarea{min-height:120px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#7aa7ff; box-shadow:0 0 0 4px rgba(37,99,235,.11)}
    .form-actions{grid-column:1 / -1; display:flex; flex-wrap:wrap; gap:12px; align-items:center}
    .footer-links{display:flex; flex-wrap:wrap; gap:12px}
    footer{
      padding:18px 0 26px;
      background:#eff4fb;
      border-top:1px solid #d7e1ef;
      color:#223047
    }
    footer a{color:#173f95}
    .footer-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:18px}
    .muted{color:var(--muted)}
    .img-card{
      display:grid; gap:12px
    }
    .img-box{
      border-radius:20px; overflow:hidden; border:1px solid var(--line); background:#fff; box-shadow:0 10px 24px rgba(15,23,42,.05)
    }
    .img-box img{width:100%; height:auto}
    .floating{
      position:fixed; right:18px; bottom:18px; z-index:70; display:grid; gap:10px
    }
    .float-btn{
      width:52px; height:52px; border-radius:16px; display:grid; place-items:center;
      background:linear-gradient(135deg,#2563eb,#7c3aed); color:#fff; box-shadow:0 16px 28px rgba(37,99,235,.28)
    }
    .service-net{display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:12px}
    .service-net .card{padding:16px}
    .scroll-reveal{opacity:0; transform:translateY(16px); transition:opacity .5s ease, transform .5s ease}
    .scroll-reveal.in{opacity:1; transform:none}
    @media (max-width: 980px){
      .hero-grid,.footer-grid,.grid-3,.quotes,.service-net,.grid-2{grid-template-columns:1fr}
      .stat-row{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      nav{display:none; width:100%; padding:12px 0 2px}
      nav.open{display:flex; flex-direction:column; align-items:flex-start}
      .nav-toggle{display:inline-flex}
      .topbar{flex-wrap:wrap}
      .form{grid-template-columns:1fr}
    }