:root{
      --bg:#0b1020;
      --bg2:#111733;
      --panel:#10162c;
      --card:#141b35;
      --card2:#171f3d;
      --line:rgba(255,255,255,.10);
      --text:#f4f6ff;
      --muted:#c8cdee;
      --accent:#ff4fd8;
      --accent2:#8c6cff;
      --accent3:#28d8ff;
      --good:#4fe3a1;
      --warn:#ffd66f;
      --shadow:0 18px 60px rgba(0,0,0,.32);
      --radius:20px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      background:
        radial-gradient(circle at 20% 10%, rgba(255,79,216,.18), transparent 25%),
        radial-gradient(circle at 80% 0%, rgba(140,108,255,.18), transparent 22%),
        radial-gradient(circle at 65% 30%, rgba(40,216,255,.12), transparent 28%),
        linear-gradient(180deg, #0b1020 0%, #0e1430 42%, #0a0e1b 100%);
      color:var(--text);
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--container)); margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:50;
      backdrop-filter: blur(16px);
      background:rgba(10,14,27,.72);
      border-bottom:1px solid var(--line);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      min-height:74px;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:rgba(255,255,255,.04);padding:4px;border:1px solid var(--line)}
    .brand strong{display:block;font-size:1.05rem;line-height:1.1}
    .brand span{display:block;font-size:.82rem;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:.93rem;color:#d9defc;opacity:.9}
    .nav-links a:hover{color:#fff}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:1px solid var(--line);border-radius:999px;
      padding:11px 18px;font-weight:600;transition:.25s ease;
      box-shadow:none;cursor:pointer;
    }
    .btn:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(0,0,0,.22)}
    .btn.primary{background:linear-gradient(135deg,var(--accent) 0%, var(--accent2) 100%);color:#fff;border-color:transparent}
    .btn.ghost{background:rgba(255,255,255,.05);color:#f7f8ff}
    .menu-toggle{display:none;background:rgba(255,255,255,.06);color:#fff}
    .hero{padding:42px 0 18px}
    .hero-grid{
      display:grid;grid-template-columns:1.12fr .88fr;gap:22px;align-items:stretch;
    }
    .hero-copy,.hero-side,.panel,.card,.faq-item,.form-card,.quote-card,.table-card,.section-title,.info-strip{
      background:linear-gradient(180deg, rgba(20,27,53,.94), rgba(14,19,40,.96));
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      border-radius:var(--radius);
    }
    .hero-copy{padding:34px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      color:#ffd9f4;background:rgba(255,79,216,.12);
      border:1px solid rgba(255,79,216,.25);
      padding:8px 12px;border-radius:999px;font-size:.86rem;font-weight:600;
    }
    h1{margin:16px 0 12px;font-size:clamp(2.1rem,4vw,4.15rem);line-height:1.04;letter-spacing:-.02em}
    .hero-copy p{margin:0;color:var(--muted);font-size:1.02rem;line-height:1.8;max-width:62ch}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0 18px}
    .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}
    .stat{
      padding:16px;border-radius:18px;background:rgba(255,255,255,.04);border:1px solid var(--line)
    }
    .stat strong{display:block;font-size:1.35rem}
    .stat span{display:block;color:var(--muted);font-size:.9rem;margin-top:6px}
    .hero-side{padding:20px;display:grid;gap:16px}
    .mini-banner{
      border-radius:18px;padding:18px;background:
      linear-gradient(135deg, rgba(255,79,216,.16), rgba(140,108,255,.16));
      border:1px solid rgba(255,255,255,.08)
    }
    .mini-banner h3{margin:0 0 10px;font-size:1.02rem}
    .mini-banner ul{margin:0;padding-left:18px;color:#dfe4ff;line-height:1.75}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{
      padding:9px 12px;border-radius:999px;
      background:rgba(255,255,255,.05);border:1px solid var(--line);color:#e8ebff;font-size:.9rem
    }
    .section{padding:18px 0}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:14px}
    .section-head h2{margin:0;font-size:1.7rem}
    .section-head p{margin:0;color:var(--muted);max-width:62ch;line-height:1.7}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .card,.panel,.faq-item,.form-card,.quote-card,.table-card{padding:20px}
    .card h3,.panel h3,.faq-q{margin:0 0 10px;font-size:1.05rem}
    .card p,.panel p,.quote-card p,.form-note,.text-muted{color:var(--muted);line-height:1.75;margin:0}
    .icon{
      width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(255,79,216,.2), rgba(40,216,255,.16));
      border:1px solid rgba(255,255,255,.08);margin-bottom:14px;font-size:1.15rem
    }
    .flow{counter-reset:step}
    .flow .card{position:relative;overflow:hidden}
    .flow .card::before{
      counter-increment:step;content:counter(step);
      position:absolute;right:16px;top:12px;font-size:2.3rem;font-weight:800;
      color:rgba(255,255,255,.06)
    }
    .pill-row{display:flex;flex-wrap:wrap;gap:10px}
    .pill{background:rgba(255,255,255,.05);border:1px solid var(--line);padding:10px 12px;border-radius:12px;color:#eef1ff;font-size:.92rem}
    .compare{
      overflow:auto;
      border-radius:18px;border:1px solid var(--line)
    }
    table{width:100%;border-collapse:collapse;min-width:860px;background:rgba(255,255,255,.02)}
    th,td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{color:#fff;background:rgba(255,255,255,.04);font-size:.95rem}
    td{color:#d8ddfb;font-size:.94rem}
    tr:hover td{background:rgba(255,255,255,.03)}
    .rating{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:10px
    }
    .stars{color:#ffdc73;letter-spacing:2px;font-size:1.1rem}
    .badge{
      display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:7px 11px;
      background:rgba(79,227,161,.12);border:1px solid rgba(79,227,161,.26);color:#d9fff0;font-size:.88rem
    }
    .faq{display:grid;gap:10px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;background:none;border:none;color:#fff;padding:18px 18px;text-align:left;
      display:flex;align-items:center;justify-content:space-between;gap:12px;cursor:pointer;font:inherit
    }
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease,padding .28s ease;border-top:1px solid transparent}
    .faq-item.open .faq-a{max-height:180px;padding:0 18px 18px;border-top-color:var(--line)}
    .faq-a p{margin:0;color:var(--muted);line-height:1.75}
    .arrow{transition:transform .25s ease}
    .faq-item.open .arrow{transform:rotate(180deg)}
    .reviews .quote-card{display:flex;flex-direction:column;gap:12px}
    .quote-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;color:#fff}
    .quote-meta strong{font-size:1rem}
    .quote-meta span{font-size:.88rem;color:var(--muted)}
    .timeline{display:grid;gap:12px}
    .time-item{
      display:grid;grid-template-columns:120px 1fr;gap:14px;align-items:start;
      padding:16px;border-radius:18px;background:rgba(255,255,255,.04);border:1px solid var(--line)
    }
    .time-item b{color:#fff}
    .time-item p{margin:6px 0 0;color:var(--muted);line-height:1.7}
    .articles{display:grid;gap:12px}
    .article{
      display:flex;justify-content:space-between;gap:14px;align-items:center;
      padding:16px 18px;border-radius:18px;background:rgba(255,255,255,.04);border:1px solid var(--line)
    }
    .article a{color:#fff;font-weight:600}
    .article small{color:var(--muted)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    label{font-size:.92rem;color:#e7ebff}
    input,select,textarea{
      width:100%;border-radius:14px;border:1px solid var(--line);outline:none;
      background:rgba(255,255,255,.04);color:#fff;padding:13px 14px;font:inherit
    }
    textarea{min-height:120px;resize:vertical}
    input::placeholder,textarea::placeholder{color:#9ba4cf}
    input:focus,select:focus,textarea:focus{border-color:rgba(255,79,216,.56);box-shadow:0 0 0 4px rgba(255,79,216,.12)}
    .submit-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:14px}
    .footer{
      margin-top:10px;padding:22px 0 34px;border-top:1px solid var(--line);
      color:#d7dcfb
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:start}
    .footer-links{display:flex;flex-wrap:wrap;gap:12px}
    .footer-links a{color:#fff}
    .footer small,.footer p{color:#bcc3ea;line-height:1.8}
    .float-tools{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float-tools a,.float-tools button{
      width:48px;height:48px;border-radius:16px;border:1px solid var(--line);
      background:rgba(16,22,44,.92);color:#fff;display:grid;place-items:center;
      box-shadow:var(--shadow);cursor:pointer
    }
    .floating-contact{
      position:fixed;left:16px;bottom:16px;z-index:60;max-width:320px;
      background:rgba(15,21,43,.95);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);
      padding:12px
    }
    .floating-contact img{width:100%;border-radius:14px;border:1px solid var(--line)}
    .floating-contact .fc-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
    .floating-contact strong{font-size:.98rem}
    .floating-contact small{color:var(--muted)}
    .reveal{opacity:0;transform:translateY(14px);transition:.55s ease}
    .reveal.in{opacity:1;transform:none}
    .home-link{
      display:inline-flex;align-items:center;justify-content:center;
      padding:10px 13px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid var(--line)
    }
    .hero-visual{
      min-height:100%;
      background:
        radial-gradient(circle at 20% 20%, rgba(255,79,216,.26), transparent 24%),
        radial-gradient(circle at 70% 30%, rgba(40,216,255,.18), transparent 24%),
        linear-gradient(180deg, rgba(17,23,51,.96), rgba(11,16,32,.96));
      border:1px solid rgba(255,255,255,.08);
      border-radius:24px;
      padding:22px;
      display:grid;gap:14px
    }
    .hero-visual .mesh{
      display:grid;grid-template-columns:repeat(2,1fr);gap:12px
    }
    .mini{
      border-radius:18px;padding:16px;background:rgba(255,255,255,.05);border:1px solid var(--line)
    }
    .mini strong{display:block;font-size:1.02rem;margin-bottom:6px}
    .mini span{color:var(--muted);font-size:.9rem;line-height:1.6}
    .accent-line{height:1px;background:linear-gradient(90deg, transparent, rgba(255,79,216,.8), rgba(40,216,255,.8), transparent);margin:2px 0 0}
    .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .price{
      padding:20px;border-radius:18px;background:rgba(255,255,255,.04);border:1px solid var(--line)
    }
    .price h3{margin:0 0 6px}
    .price strong{font-size:1.5rem}
    .price p{margin:8px 0 0;color:var(--muted);line-height:1.7}
    .center{text-align:center}
    .mt8{margin-top:8px}
    .mt12{margin-top:12px}
    .mt16{margin-top:16px}
    .mt20{margin-top:20px}
    .muted{color:var(--muted)}
    .section-slab{
      background:rgba(255,255,255,.02);border:1px solid var(--line);
      border-radius:24px;padding:18px
    }
    @media (max-width: 1024px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.footer-grid,.price-grid{grid-template-columns:1fr 1fr}
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .nav.open .nav-links{
        display:flex;position:absolute;left:16px;right:16px;top:76px;flex-direction:column;align-items:flex-start;
        padding:14px;background:rgba(10,14,27,.98);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)
      }
    }
    @media (max-width: 760px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.footer-grid,.price-grid,.hero-stats,.form-grid{grid-template-columns:1fr}
      .nav{position:relative}
      .hero-copy,.hero-side,.card,.panel,.faq-item,.form-card,.quote-card,.table-card{padding:18px}
      h1{font-size:2rem}
      .time-item{grid-template-columns:1fr}
      .floating-contact{display:none}
      .section-head{flex-direction:column;align-items:flex-start}
      .hero-actions .btn{width:100%}
      .nav-cta .ghost{display:none}
    }