:root{
      --bg:#0d0716;
      --bg2:#140a22;
      --panel:#151020;
      --panel2:#1c122c;
      --line:rgba(255,255,255,.1);
      --text:#f4ebff;
      --muted:#d2c5e8;
      --primary:#ff4fd8;
      --primary2:#9f67ff;
      --accent:#54d7ff;
      --warn:#ffd56a;
      --good:#67f0b7;
      --shadow:0 18px 50px rgba(0,0,0,.36);
      --radius:22px;
      --container: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;
      background:
        radial-gradient(circle at top left, rgba(255,79,216,.16), transparent 28%),
        radial-gradient(circle at 85% 10%, rgba(84,215,255,.14), transparent 26%),
        linear-gradient(180deg, #090510 0%, #12081d 38%, #0b0712 100%);
      color:var(--text);
      line-height:1.6;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px));margin:0 auto}
    header,main,footer{position:relative;z-index:1}
    .topbar{
      position:sticky;top:0;backdrop-filter:blur(18px);
      background:rgba(10,6,16,.7);border-bottom:1px solid rgba(255,255,255,.08);
      z-index:50;
    }
    .nav{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand .ai-page-logo{width:42px;height:42px;border-radius:12px;object-fit:cover;background:#fff;box-shadow:0 0 0 1px rgba(255,255,255,.12)}
    .brand-text{min-width:0}
    .brand-text strong{display:block;font-size:1rem;letter-spacing:.04em}
    .brand-text span{display:block;font-size:.82rem;color:var(--muted)}
    .nav-toggle{display:none}
    .nav-links{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:10px}
    .nav-links a,.chip,.btn,.ghost{
      border:1px solid rgba(255,255,255,.1);
      background:rgba(255,255,255,.04);
      color:var(--text);
      border-radius:999px;
      padding:10px 14px;
      font-size:.92rem;
      transition:.24s ease;
    }
    .nav-links a:hover,.chip:hover,.ghost:hover,.btn:hover{transform:translateY(-2px);border-color:rgba(255,79,216,.45);box-shadow:0 10px 26px rgba(255,79,216,.12)}
    .hero{padding:44px 0 22px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch}
    .hero-card{
      background:linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.1);border-radius:28px;padding:30px;box-shadow:var(--shadow);position:relative;overflow:hidden
    }
    .hero-card:before,.hero-card:after{
      content:"";position:absolute;border-radius:999px;filter:blur(2px);pointer-events:none
    }
    .hero-card:before{width:180px;height:180px;background:rgba(255,79,216,.16);top:-60px;right:-50px}
    .hero-card:after{width:220px;height:220px;background:rgba(84,215,255,.12);bottom:-90px;left:-70px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#ffd7f4;background:rgba(255,79,216,.12);border:1px solid rgba(255,79,216,.25);padding:8px 12px;border-radius:999px;font-size:.88rem}
    h1{margin:14px 0 14px;font-size:clamp(2rem,4.2vw,4.2rem);line-height:1.08;letter-spacing:-.03em}
    .lead{max-width:62ch;color:#eddffb;font-size:1.04rem}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 16px}
    .btn{background:linear-gradient(135deg,var(--primary),var(--primary2));border:none;font-weight:700;color:#fff}
    .ghost{background:rgba(255,255,255,.06)}
    .mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}
    .stat{
      background:rgba(10,7,18,.5);border:1px solid rgba(255,255,255,.08);
      border-radius:18px;padding:16px
    }
    .stat b{display:block;font-size:1.18rem;color:#fff}
    .stat span{display:block;color:var(--muted);font-size:.88rem}
    .side-panel{display:grid;gap:14px}
    .side-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);border-radius:24px;padding:20px;box-shadow:var(--shadow)}
    .side-card h2,.section-head h2{margin:0 0 10px;font-size:clamp(1.35rem,2.4vw,2rem)}
    .section{padding:26px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-head p{margin:0;color:var(--muted);max-width:70ch}
    .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{
      background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.035));
      border:1px solid rgba(255,255,255,.09);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)
    }
    .card:hover,.panel:hover{transform:translateY(-4px);transition:.22s ease}
    .kpi{font-size:1.55rem;font-weight:800;color:#fff;margin:0}
    .muted{color:var(--muted)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud .chip{font-size:.86rem}
    .timeline{display:grid;gap:12px}
    .step{display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:start}
    .step-num{
      width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(255,79,216,.95), rgba(159,103,255,.9));
      font-weight:800;color:#fff
    }
    .compare-wrap{overflow:auto;border-radius:24px;border:1px solid rgba(255,255,255,.1)}
    table{width:100%;border-collapse:collapse;min-width:760px;background:rgba(255,255,255,.03)}
    th,td{padding:14px 14px;border-bottom:1px solid rgba(255,255,255,.08);text-align:left;vertical-align:top}
    th{background:rgba(255,255,255,.05);color:#fff}
    td{color:#ece3f7}
    .rating{font-size:1.15rem;font-weight:800;color:#ffd56a}
    .faq details,.accordion details{
      background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:14px 16px
    }
    .faq{display:grid;gap:12px}
    summary{cursor:pointer;font-weight:700;list-style:none}
    summary::-webkit-details-marker{display:none}
    .reviews,.articles,.cases,.network,.links,.footer-cols{display:grid;gap:14px}
    .review-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}
    .avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent))}
    .article-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}
    .article-list li{display:flex;justify-content:space-between;gap:12px;padding-bottom:12px;border-bottom:1px dashed rgba(255,255,255,.12)}
    .article-list a{color:#fff}
    .form{
      display:grid;grid-template-columns:repeat(2,1fr);gap:12px
    }
    .form .full{grid-column:1/-1}
    input,select,textarea{
      width:100%;border-radius:14px;border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.05);color:var(--text);padding:13px 14px;font:inherit;outline:none
    }
    textarea{min-height:128px;resize:vertical}
    input::placeholder,textarea::placeholder{color:#bfaed6}
    .submit{grid-column:1/-1;justify-self:start}
    .contact-grid{display:grid;grid-template-columns:1fr .9fr;gap:14px;align-items:start}
    .qr{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
    .qr img{width:140px;border-radius:18px;border:1px solid rgba(255,255,255,.1)}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      width:54px;height:54px;border-radius:18px;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;
      box-shadow:0 16px 36px rgba(0,0,0,.32);border:none;font-weight:800
    }
    footer{
      padding:24px 0 30px;margin-top:10px;background:rgba(5,4,10,.72);border-top:1px solid rgba(255,255,255,.08)
    }
    footer,footer a,footer p,footer li{color:#eadff8}
    .footer-cols{grid-template-columns:1.2fr 1fr 1fr}
    .small{font-size:.9rem;color:#c8b8df}
    .badge{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border-radius:999px;background:rgba(84,215,255,.12);border:1px solid rgba(84,215,255,.22);color:#dff8ff;font-size:.84rem}
    .scroll-reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
    .scroll-reveal.in{opacity:1;transform:none}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.contact-grid,.footer-cols{grid-template-columns:1fr}
      .section-head,.nav{align-items:flex-start;flex-direction:column}
      .nav-toggle{display:inline-flex}
      .nav-links{
        display:none;width:100%;padding-top:10px;justify-content:flex-start
      }
      .nav-links.open{display:flex}
      .mini-stats{grid-template-columns:1fr}
      .form{grid-template-columns:1fr}
    }