:root{
      --bg:#0b0c18;
      --bg2:#12132a;
      --panel:rgba(255,255,255,.06);
      --panel2:rgba(255,255,255,.09);
      --line:rgba(255,255,255,.12);
      --text:#f4f3ff;
      --muted:#c9c6e6;
      --accent:#ff4fd8;
      --accent2:#8b5cf6;
      --accent3:#2de2e6;
      --shadow:0 18px 50px rgba(0,0,0,.35);
      --radius:22px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:
      radial-gradient(circle at 20% 10%, rgba(255,79,216,.18), transparent 25%),
      radial-gradient(circle at 85% 18%, rgba(45,226,230,.16), transparent 22%),
      linear-gradient(180deg,#090a14 0%, #111327 100%);
      color:var(--text);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px));margin:0 auto}
    .topbar{position:sticky;top:0;z-index:50;background:rgba(10,11,22,.76);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
    .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;object-fit:contain;border-radius:12px;background:rgba(255,255,255,.08);padding:4px}
    .brand strong{display:block;font-size:1rem;letter-spacing:.5px}
    .brand span{display:block;font-size:.82rem;color:var(--muted)}
    .navlinks{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:flex-end}
    .navlinks a,.btn,.chip,.tag,.subtle-link{transition:.25s ease}
    .navlinks a{padding:9px 12px;border-radius:999px;color:#ece8ff;background:transparent}
    .navlinks a:hover,.navlinks a.active{background:rgba(255,255,255,.08);transform:translateY(-1px)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:999px;padding:12px 18px;font-weight:700;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;box-shadow:0 10px 28px rgba(255,79,216,.24)}
    .btn-primary:hover{transform:translateY(-2px)}
    .btn-ghost{background:rgba(255,255,255,.05);border-color:var(--line);color:var(--text)}
    .menu-btn{display:none;background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text);border-radius:14px;padding:10px 12px}
    .hero{padding:52px 0 26px;position:relative;overflow:hidden}
    .hero:before,.hero:after{content:"";position:absolute;border-radius:50%;filter:blur(10px);pointer-events:none}
    .hero:before{width:220px;height:220px;background:rgba(255,79,216,.12);right:-40px;top:20px}
    .hero:after{width:180px;height:180px;background:rgba(45,226,230,.10);left:-30px;bottom:20px}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:stretch}
    .hero-copy,.hero-card,.section-card,.info-card,.quote-card,.faq-item,.form-card{background:linear-gradient(180deg,var(--panel),rgba(255,255,255,.03));border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-copy{padding:34px}
    h1{margin:0 0 14px;font-size:clamp(2rem,5vw,4rem);line-height:1.05;letter-spacing:-.02em}
    .lead{margin:0 0 20px;color:var(--muted);font-size:1.05rem;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
    .chip,.tag{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.07);border:1px solid var(--line);color:#efeaff;font-size:.92rem}
    .hero-card{padding:22px;display:grid;gap:16px}
    .metric-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .metric{padding:16px;border-radius:18px;background:rgba(255,255,255,.05);border:1px solid var(--line)}
    .metric strong{display:block;font-size:1.6rem}
    .metric span{color:var(--muted);font-size:.9rem}
    .section{padding:16px 0 4px}
    .section-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-end;margin:22px 0 16px}
    .section-head h2{margin:0;font-size:clamp(1.4rem,3vw,2.2rem)}
    .section-head p{margin:0;color:var(--muted);max-width:66ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
    .section-card,.info-card,.quote-card,.faq-item,.form-card{padding:22px}
    .section-card h3,.info-card h3,.quote-card h3{margin:0 0 10px;font-size:1.12rem}
    .section-card p,.info-card p,.quote-card p{margin:0;color:var(--muted)}
    .icon-badge{width:46px;height:46px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(255,79,216,.18),rgba(45,226,230,.14));border:1px solid var(--line);margin-bottom:14px}
    .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step{padding:18px;border-radius:18px;background:rgba(255,255,255,.05);border:1px solid var(--line)}
    .step b{display:inline-flex;width:32px;height:32px;border-radius:50%;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--accent),var(--accent2));margin-bottom:12px}
    .table-wrap{overflow:auto;border-radius:var(--radius);border:1px solid var(--line);background:rgba(255,255,255,.04)}
    table{width:100%;border-collapse:collapse;min-width:860px;color:var(--text)}
    th,td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:rgba(255,255,255,.06);font-size:.95rem}
    td{color:#efeafd}
    .faq-list{display:grid;gap:12px}
    .faq-item summary{list-style:none;cursor:pointer;font-weight:700;display:flex;justify-content:space-between;gap:12px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item p{margin:14px 0 0;color:var(--muted)}
    .review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
    .stars{color:#ffd56a;letter-spacing:2px;margin-bottom:10px}
    .gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .gallery img{border-radius:18px;border:1px solid var(--line);background:rgba(255,255,255,.04)}
    .article-list,.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .article-list a{padding:12px 14px;border-radius:14px;background:rgba(255,255,255,.05);border:1px solid var(--line);color:#f0ebff}
    .pricing{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
    .price-card{padding:22px;border-radius:22px;background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.04));border:1px solid var(--line)}
    .price-card strong{font-size:2rem}
    .timeline{display:grid;gap:14px}
    .time-item{display:grid;grid-template-columns:100px 1fr;gap:14px;align-items:start;padding:16px 18px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.04)}
    .time-item time{color:#fff;font-weight:700}
    .contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:18px;align-items:start}
    form{display:grid;gap:12px}
    input,select,textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.06);color:var(--text);outline:none}
    textarea{min-height:120px;resize:vertical}
    input::placeholder,textarea::placeholder{color:#b9b5d3}
    .form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .footer{margin-top:20px;padding:22px 0 28px;border-top:1px solid var(--line);background:rgba(6,7,14,.7);color:#eae6ff}
    .footer a{color:#ffffff}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
    .mini{color:var(--muted);font-size:.95rem}
    .sticky-tools{position:fixed;right:16px;bottom:16px;display:grid;gap:10px;z-index:60}
    .tool{width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:grid;place-items:center;color:#fff;box-shadow:var(--shadow)}
    .tool.secondary{background:rgba(255,255,255,.08);border:1px solid var(--line)}
    .floating-contact{position:fixed;left:16px;bottom:16px;z-index:60;background:rgba(14,15,31,.94);border:1px solid var(--line);border-radius:20px;padding:12px;width:min(300px,calc(100vw - 32px));box-shadow:var(--shadow)}
    .floating-contact .row{display:flex;align-items:center;gap:12px}
    .floating-contact img{width:86px;height:86px;object-fit:cover;border-radius:16px;border:1px solid var(--line)}
    .floating-contact small{display:block;color:var(--muted)}
    .scroll-reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease}
    .scroll-reveal.visible{opacity:1;transform:none}
    .mobile-only{display:none}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-2,.review-grid,.pricing,.contact-grid,.footer-grid,.steps{grid-template-columns:1fr}
      .time-item{grid-template-columns:1fr}
      .navlinks{display:none;position:absolute;left:16px;right:16px;top:70px;padding:14px;border-radius:18px;background:rgba(9,10,18,.96);border:1px solid var(--line)}
      .navlinks.open{display:flex;flex-direction:column;align-items:stretch}
      .menu-btn{display:inline-flex}
      .mobile-only{display:inline-flex}
      .hero-copy{padding:24px}
    }