:root{
      --bg:#0b0a14;
      --bg2:#120f22;
      --card:#17132a;
      --card2:#1d1734;
      --text:#f5f1ff;
      --muted:#c9c1e6;
      --line:rgba(255,255,255,.09);
      --pink:#ff5dcf;
      --violet:#8c6bff;
      --cyan:#6fe7ff;
      --gold:#ffcf70;
      --shadow:0 20px 60px rgba(0,0,0,.28);
      --radius:22px;
      --radius-sm:16px;
      --max: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 15% 10%, rgba(255,93,207,.15), transparent 22%),
        radial-gradient(circle at 85% 12%, rgba(111,231,255,.12), transparent 18%),
        radial-gradient(circle at 50% 0%, rgba(140,107,255,.12), transparent 28%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
      color:var(--text);
      line-height:1.65;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max), calc(100% - 32px)); margin:0 auto}
    .topbar{
      position:sticky; top:0; z-index:60;
      backdrop-filter: blur(18px);
      background: rgba(11,10,20,.72);
      border-bottom:1px solid var(--line);
    }
    .nav{
      display:flex; align-items:center; justify-content:space-between; gap:18px;
      min-height:74px;
    }
    .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-text{display:flex;flex-direction:column;min-width:0}
    .brand-text strong{font-size:18px;letter-spacing:.4px}
    .brand-text span{font-size:12px;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:13px;color:#e9e2ff;opacity:.9;padding:8px 10px;border-radius:999px;transition:.25s ease}
    .nav-links a:hover{background:rgba(255,255,255,.06);opacity:1}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn,.btn-outline{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border-radius:999px;padding:12px 18px;font-weight:700;border:1px solid transparent;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      cursor:pointer; user-select:none;
    }
    .btn{background:linear-gradient(135deg, var(--pink), var(--violet)); color:white; box-shadow:0 12px 30px rgba(255,93,207,.22)}
    .btn-outline{background:rgba(255,255,255,.03); color:var(--text); border-color:var(--line)}
    .btn:hover,.btn-outline:hover{transform:translateY(-2px)}
    .menu-btn{display:none;background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);padding:10px 12px;border-radius:12px}
    .hero{
      padding:56px 0 28px;
      position:relative;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:stretch
    }
    .hero-card,.panel,.card,.faq-item,.review,.article,.price-box,.timeline-item,.compare,.form-card,.stat{
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      border-radius:var(--radius);
    }
    .hero-card{padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:#ffd7f4;background:rgba(255,93,207,.12);border:1px solid rgba(255,93,207,.2);padding:8px 12px;border-radius:999px}
    h1{margin:16px 0 14px;font-size:clamp(32px,5vw,54px);line-height:1.08}
    .hero p{margin:0;color:var(--muted);font-size:16px;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:24px}
    .mini{
      padding:16px;background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:18px
    }
    .mini strong{display:block;font-size:18px}
    .mini span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
    .hero-side{display:grid;gap:16px}
    .side-top{padding:22px}
    .side-top h2,.section-title{margin:0 0 10px;font-size:clamp(24px,3vw,34px)}
    .section-sub{margin:0;color:var(--muted);max-width:70ch}
    .side-list{display:grid;gap:10px;margin-top:16px}
    .side-list div{display:flex;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:16px;background:rgba(255,255,255,.03);border:1px solid var(--line);font-size:14px}
    .side-list b{color:#fff}
    section{padding:18px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:18px}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .stat,.card,.review,.article,.price-box,.timeline-item,.compare,.form-card{padding:20px}
    .stat strong{display:block;font-size:28px}
    .stat span{color:var(--muted);font-size:13px}
    .card h3,.price-box h3,.form-card h3,.review h3,.article h3,.compare h3{margin:0 0 8px;font-size:18px}
    .card p,.price-box p,.review p,.article p,.compare p{margin:0;color:var(--muted)}
    .feature-list{display:grid;gap:10px;margin-top:12px;color:#efe8ff}
    .feature-list span{display:flex;gap:10px;align-items:flex-start}
    .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--pink),var(--cyan));margin-top:7px;flex:none}
    .workflow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step{position:relative}
    .step .num{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg, rgba(255,93,207,.2), rgba(140,107,255,.2));border:1px solid rgba(255,255,255,.12);margin-bottom:12px;font-weight:800}
    .table-wrap{overflow:auto;border-radius:var(--radius)}
    table{width:100%;border-collapse:collapse;min-width:760px;background:rgba(255,255,255,.03)}
    th,td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{font-size:14px;color:#fff;background:rgba(255,255,255,.04)}
    td{color:var(--muted)}
    .badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;border-radius:999px;padding:6px 10px;background:rgba(111,231,255,.12);border:1px solid rgba(111,231,255,.18);color:#dffcff}
    .timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .timeline-item{position:relative}
    .timeline-item h3{margin-top:0}
    .timeline-item:before{content:"";position:absolute;left:20px;top:20px;width:10px;height:10px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 6px rgba(255,207,112,.12)}
    .timeline-item{padding-top:42px}
    .quotes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .review .meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
    .stars{color:#ffd36b;letter-spacing:2px}
    .article-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .article a{color:#fff;text-decoration:underline;text-underline-offset:3px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:9px 12px;border-radius:999px;background:rgba(255,255,255,.04);border:1px solid var(--line);color:#eee7ff;font-size:13px}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;text-align:left;background:none;border:0;color:var(--text);font-size:16px;font-weight:700;padding:18px 18px;display:flex;justify-content:space-between;gap:12px;cursor:pointer}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 18px;color:var(--muted)}
    .faq-item.open .faq-a{max-height:240px;padding-bottom:18px}
    .faq-item.open .faq-q span{transform:rotate(45deg)}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    label{display:block;font-size:13px;color:#efe8ff;margin-bottom:8px}
    input,select,textarea{
      width:100%;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.04);
      color:var(--text);padding:12px 14px;font:inherit;outline:none
    }
    textarea{min-height:120px;resize:vertical}
    input::placeholder,textarea::placeholder{color:#b7afd5}
    .full{grid-column:1/-1}
    footer{
      margin-top:12px;padding:24px 0 30px;border-top:1px solid var(--line);
      background:rgba(5,4,12,.55);color:#efe8ff
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:16px;align-items:start}
    .footer-grid a{color:#fff;opacity:.92}
    .footer-grid a:hover{text-decoration:underline}
    .footer-note{color:var(--muted);font-size:13px;margin-top:12px}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:70;display:grid;gap:10px
    }
    .floating a,.floating button{
      width:48px;height:48px;border-radius:16px;border:1px solid var(--line);
      background:linear-gradient(135deg, rgba(255,93,207,.22), rgba(140,107,255,.22));color:#fff;
      display:grid;place-items:center;box-shadow:var(--shadow);cursor:pointer
    }
    .reveal{opacity:0;transform:translateY(18px);transition:.55s ease}
    .reveal.show{opacity:1;transform:none}
    .marquee{
      overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
      background:rgba(255,255,255,.03)
    }
    .marquee-inner{display:flex;gap:26px;white-space:nowrap;padding:12px 0;animation:scroll 28s linear infinite;color:#ede4ff}
    .marquee-inner span{display:inline-flex;align-items:center;gap:8px}
    .marquee-inner b{color:#fff}
    @keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
    @media (max-width: 1024px){
      .hero-grid,.grid-4,.workflow,.timeline,.quotes,.article-list,.footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 768px){
      .menu-btn{display:inline-grid}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:74px;background:rgba(15,12,28,.98);border:1px solid var(--line);border-radius:18px;padding:12px;flex-direction:column;align-items:flex-start}
      .nav-links.show{display:flex}
      .nav-cta .btn-outline{display:none}
      .hero{padding-top:26px}
      .hero-grid,.grid-4,.grid-3,.grid-2,.workflow,.timeline,.quotes,.article-list,.footer-grid,.form-grid{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      h1{font-size:32px}
    }