:root{
      --bg:#120914;
      --bg2:#1a0f23;
      --panel:#1d1227;
      --panel2:#241530;
      --line:rgba(255,255,255,.08);
      --text:#f4edf8;
      --muted:#cbb7d9;
      --brand:#ff4fd8;
      --brand2:#8f7bff;
      --brand3:#28d7ff;
      --good:#48f0a5;
      --warn:#ffd36a;
      --shadow:0 18px 50px rgba(0,0,0,.28);
      --radius:22px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
      background:
        radial-gradient(circle at 20% 10%, rgba(255,79,216,.22), transparent 20%),
        radial-gradient(circle at 80% 0%, rgba(143,123,255,.18), transparent 24%),
        linear-gradient(180deg, #120914 0%, #160c1f 48%, #100812 100%);
      color:var(--text);
      line-height:1.65;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .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(16px);
      background:rgba(17,10,24,.72); border-bottom:1px solid var(--line);
      z-index:20;
    }
    .nav{
      display:flex; align-items:center; justify-content:space-between; gap:16px;
      padding:14px 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,.05); padding:6px; border:1px solid var(--line)}
    .brand h2{margin:0; font-size:16px; letter-spacing:.5px}
    .brand p{margin:2px 0 0; color:var(--muted); font-size:12px}
    .navlinks{display:flex; flex-wrap:wrap; gap:6px; justify-content:flex-end; align-items:center}
    .navlinks a{
      padding:8px 11px; border-radius:999px; font-size:13px; color:var(--muted);
      border:1px solid transparent; transition:.2s ease;
    }
    .navlinks a:hover,.navlinks a:focus-visible{color:var(--text); border-color:rgba(255,255,255,.12); background:rgba(255,255,255,.04)}
    .menu-btn{
      display:none; border:1px solid var(--line); background:rgba(255,255,255,.05); color:var(--text);
      padding:10px 12px; border-radius:12px;
    }

    .hero{
      padding:46px 0 26px;
      position:relative;
      overflow:hidden;
    }
    .hero .container{
      display:grid; grid-template-columns:1.15fr .85fr; gap:22px; align-items:stretch;
    }
    .hero-card,.side-card,.section-card,.info-card,.review-card,.faq-item,.form-card,.table-card,.case-card,.news-card,.metric,.badge-panel{
      background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
      border:1px solid var(--line); box-shadow:var(--shadow); border-radius:var(--radius);
    }
    .hero-card{padding:30px; position:relative; overflow:hidden}
    .hero-card:before{
      content:""; position:absolute; inset:-2px;
      background:
        radial-gradient(circle at 30% 20%, rgba(255,79,216,.2), transparent 30%),
        radial-gradient(circle at 82% 22%, rgba(40,215,255,.18), transparent 30%);
      pointer-events:none;
    }
    .eyebrow{
      display:inline-flex; align-items:center; gap:8px; padding:7px 12px; border-radius:999px;
      background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.1); color:#ffd8f5; font-size:13px;
      position:relative;
    }
    h1{
      margin:14px 0 14px; font-size:clamp(34px, 5vw, 58px); line-height:1.06; letter-spacing:-.02em; position:relative;
    }
    .lead{margin:0; max-width:62ch; color:var(--muted); font-size:16px; position:relative}
    .cta-row{display:flex; flex-wrap:wrap; gap:12px; margin-top:22px; position:relative}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      padding:12px 18px; border-radius:14px; border:1px solid transparent;
      transition:.22s ease; font-weight:600; cursor:pointer;
    }
    .btn-primary{background:linear-gradient(135deg, var(--brand), var(--brand2)); color:#fff; box-shadow:0 14px 30px rgba(255,79,216,.25)}
    .btn-primary:hover{transform:translateY(-2px); filter:saturate(1.1)}
    .btn-ghost{background:rgba(255,255,255,.04); border-color:rgba(255,255,255,.12); color:var(--text)}
    .btn-ghost:hover{transform:translateY(-2px); background:rgba(255,255,255,.07)}
    .hero-stats{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    .metric{padding:18px}
    .metric strong{display:block; font-size:28px; line-height:1.1; color:#fff}
    .metric span{display:block; margin-top:6px; color:var(--muted); font-size:13px}
    .side-card{padding:22px; display:grid; gap:14px}
    .side-card h3,.section-title h2{margin:0; font-size:24px}
    .side-card ul{margin:0; padding-left:18px; color:var(--muted)}
    .side-card li{margin:8px 0}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag-cloud span{
      padding:9px 11px; border-radius:999px; background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.09); color:#f0dbff; font-size:13px
    }
    .section{padding:20px 0}
    .section-card{padding:24px}
    .section-title{display:flex; justify-content:space-between; align-items:end; gap:16px; margin-bottom:18px}
    .section-title p{margin:6px 0 0; color:var(--muted)}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .grid-2{display:grid; grid-template-columns:repeat(2,1fr); gap:16px}
    .info-card,.review-card,.case-card,.news-card,.faq-item,.table-card,.form-card{padding:18px}
    .info-card h3,.review-card h3,.case-card h3,.news-card h3{margin:0 0 10px; font-size:18px}
    .info-card p,.review-card p,.case-card p,.news-card p{margin:0; color:var(--muted)}
    .pill{display:inline-flex; margin-bottom:12px; padding:6px 10px; border-radius:999px; background:rgba(255,79,216,.15); color:#ffd2f4; border:1px solid rgba(255,79,216,.25); font-size:12px}
    .steps{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
    .step{
      padding:18px; border-radius:18px; background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
      border:1px solid var(--line)
    }
    .step b{display:inline-flex; width:34px; height:34px; border-radius:12px; align-items:center; justify-content:center; background:linear-gradient(135deg, rgba(255,79,216,.28), rgba(143,123,255,.25)); margin-bottom:12px}
    .step h3{margin:0 0 8px; font-size:17px}
    .step p{margin:0; color:var(--muted)}
    .table-wrap{overflow-x:auto}
    table{width:100%; border-collapse:collapse; min-width:820px}
    th,td{padding:14px 12px; text-align:left; border-bottom:1px solid var(--line); vertical-align:top}
    th{color:#ffdff5; font-size:14px}
    td{color:var(--muted)}
    .score{font-size:20px; color:#fff; font-weight:700}
    details{border-radius:16px; overflow:hidden; background:rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.08)}
    details+details{margin-top:12px}
    summary{list-style:none; cursor:pointer; padding:16px 18px; font-weight:600}
    summary::-webkit-details-marker{display:none}
    details p{margin:0; padding:0 18px 16px; color:var(--muted)}
    .reviews .review-card{height:100%}
    .review-meta{display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:10px}
    .stars{color:var(--warn)}
    .cases{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .case-card ul{margin:12px 0 0; padding-left:18px; color:var(--muted)}
    .form-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    label{display:block; font-size:13px; color:#f2ddff; margin-bottom:8px}
    input,select,textarea{
      width:100%; border-radius:14px; border:1px solid rgba(255,255,255,.1); background:rgba(255,255,255,.05);
      color:var(--text); padding:12px 14px; outline:none;
    }
    textarea{min-height:120px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(255,79,216,.55); box-shadow:0 0 0 3px rgba(255,79,216,.12)}
    .form-actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:14px}
    .footer{
      margin-top:20px; padding:26px 0 18px; border-top:1px solid var(--line);
      background:rgba(12,7,17,.6)
    }
    .footer-grid{display:grid; grid-template-columns:1.2fr .8fr; gap:18px}
    .footer small,.footer p,.footer a{color:var(--muted)}
    .footer-links{display:flex; flex-wrap:wrap; gap:10px}
    .footer-links a,.link-chip{
      display:inline-flex; padding:8px 10px; border-radius:999px; background:rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.07)
    }
    .floating{
      position:fixed; right:16px; bottom:16px; z-index:50; display:grid; gap:10px;
    }
    .floating a,.floating button{
      border:none; cursor:pointer; color:#fff; background:linear-gradient(135deg, var(--brand), var(--brand2));
      box-shadow:0 12px 24px rgba(255,79,216,.22); padding:12px 14px; border-radius:999px; font-weight:700
    }
    .floating .to-top{background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.1)}
    .mobile-panel{display:none}
    .fade-in{opacity:0; transform:translateY(16px); transition:.7s ease}
    .fade-in.show{opacity:1; transform:none}
    .image-row{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    .mini-note{color:var(--muted); font-size:13px}
    .faq-grid{display:grid; grid-template-columns:1fr 1fr; gap:16px}
    .news-list{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    @media (max-width: 1024px){
      .hero .container,.grid-3,.cases,.steps,.footer-grid,.faq-grid,.news-list{grid-template-columns:1fr 1fr}
      .hero .container{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .navlinks{display:none}
      .menu-btn{display:inline-flex}
      .mobile-panel{display:none; padding:0 0 14px}
      .mobile-panel.open{display:block}
      .mobile-panel .navlinks{display:flex; justify-content:flex-start; padding-top:10px}
      .hero{padding-top:24px}
      .hero-card,.side-card,.section-card{padding:20px}
      .grid-3,.grid-2,.steps,.cases,.faq-grid,.news-list,.footer-grid,.form-grid,.image-row,.hero-stats{grid-template-columns:1fr}
      h1{font-size:32px}
      .section-title{flex-direction:column; align-items:flex-start}
      .floating{right:12px; bottom:12px}
    }