:root{
      --bg:#fffaf3;
      --bg2:#f5f7ff;
      --card:#ffffff;
      --text:#172033;
      --muted:#5c657a;
      --line:#e9e2d6;
      --brand:#5c63ff;
      --brand2:#ff7b72;
      --brand3:#26c6da;
      --accent:#ffb347;
      --shadow:0 18px 50px rgba(24,39,75,.09);
      --radius:22px;
      --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 12% 8%, rgba(255,179,71,.16), transparent 22%),
      radial-gradient(circle at 88% 4%, rgba(92,99,255,.12), transparent 20%),
      linear-gradient(180deg, #fffdf8 0%, #f7f9ff 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(100% - 32px,var(--container));margin:0 auto}
    header{position:sticky;top:0;z-index:60;background:rgba(255,250,243,.86);backdrop-filter:saturate(180%) blur(16px);border-bottom:1px solid rgba(233,226,214,.8)}
    .topbar{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 img{width:44px;height:44px;object-fit:contain}
    .brand h1{font-size:16px;margin:0;font-weight:800;letter-spacing:.3px}
    .brand small{display:block;color:var(--muted);font-size:12px;font-weight:500}
    nav{display:flex;align-items:center;gap:14px}
    .nav-links{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
    .nav-links a{padding:8px 11px;border-radius:999px;color:#26314b;font-size:13px;font-weight:600}
    .nav-links a:hover,.nav-links a:focus{background:#eef1ff;color:var(--brand)}
    .nav-cta{display:flex;gap:10px;align-items:center}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:999px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.25s ease;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--brand),#7b86ff);color:#fff;box-shadow:0 14px 28px rgba(92,99,255,.24)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 32px rgba(92,99,255,.28)}
    .btn-light{background:#fff;color:#23304a;border:1px solid var(--line)}
    .btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 12px}
    main{display:block}
    section{padding:30px 0}
    .hero{padding:34px 0 18px}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch}
    .hero-card,.panel,.card,.review,.faq-item,.step,.case,.article,.compare,.contact,.pricing,.tags,.timeline{background:rgba(255,255,255,.88);border:1px solid rgba(233,226,214,.9);box-shadow:var(--shadow);border-radius:var(--radius)}
    .hero-card{padding:30px;position:relative;overflow:hidden}
    .hero-card:before{content:"";position:absolute;inset:-30% -12% auto auto;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle, rgba(255,179,71,.30), transparent 65%)}
    .hero-card:after{content:"";position:absolute;left:-50px;bottom:-70px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle, rgba(92,99,255,.16), transparent 63%)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff4df;color:#8a5611;border:1px solid #ffd89a;padding:8px 12px;border-radius:999px;font-size:13px;font-weight:700}
    .hero h2{margin:14px 0 12px;font-size:clamp(30px,4vw,52px);line-height:1.08;letter-spacing:-.8px}
    .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-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .mini{padding:14px 14px 12px;border-radius:18px;background:linear-gradient(180deg,#fff, #fff8ef);border:1px solid #f0e6d7}
    .mini b{display:block;font-size:18px;margin-bottom:4px}
    .mini span{color:var(--muted);font-size:12px}
    .hero-side{display:grid;gap:14px}
    .side-box{padding:20px}
    .side-box h3{margin:0 0 10px;font-size:18px}
    .side-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}
    .side-list li{display:flex;gap:10px;align-items:flex-start;color:#27324a}
    .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand2),var(--accent));margin-top:8px;flex:none}
    .logo-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:16px}
    .logo-row .ai-page-home-link{font-weight:700;color:var(--brand)}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .metric{padding:18px}
    .metric .n{font-size:26px;font-weight:900;color:#202a44}
    .metric .t{font-size:13px;color:var(--muted)}
    .section-head{display:flex;justify-content:space-between;gap:16px;align-items:end;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:68ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .card{padding:20px}
    .card h3,.step h3,.case h3,.review h3,.article h3,.faq-item summary,.contact h3{margin:0 0 10px;font-size:18px}
    .card p,.step p,.case p,.review p,.article p{margin:0;color:var(--muted)}
    .pill-wrap{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
    .pill{padding:7px 10px;border-radius:999px;background:#f4f7ff;color:#3750a6;font-size:12px;font-weight:700;border:1px solid #dde4ff}
    .timeline{padding:20px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:18px;position:relative}
    .step .num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,#fff1dd,#e6ebff);color:#7a4b0a;font-weight:800;margin-bottom:12px}
    .compare{overflow:hidden}
    .table-wrap{overflow:auto}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:16px;border-bottom:1px solid #eef0f6;text-align:left;vertical-align:top}
    th{background:#fbfbff;font-size:14px}
    td{color:#344057}
    .score{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
    .stars{color:#ffb347;font-size:18px;letter-spacing:2px}
    .check{color:#11a36a;font-weight:700}
    .cross{color:#d15f5f;font-weight:700}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .tags-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:10px 14px;border-radius:999px;background:#fff;border:1px solid #e8eaf5;color:#33405e;font-weight:700;font-size:13px}
    .cases,.reviews,.articles,.faq-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .case .badge,.review .badge,.article .badge{display:inline-flex;padding:6px 10px;border-radius:999px;background:#eefbf8;color:#17745c;font-size:12px;font-weight:800;margin-bottom:12px}
    .review .meta{margin-top:14px;color:#62708a;font-size:13px}
    .faq-item{padding:0;overflow:hidden}
    .faq-item summary{list-style:none;cursor:pointer;padding:18px 20px;display:flex;justify-content:space-between;gap:12px;align-items:center}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item .answer{padding:0 20px 18px;color:var(--muted)}
    .faq-item .symbol{font-size:20px;color:var(--brand);font-weight:700}
    .contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .contact form{display:grid;gap:12px}
    .field{display:grid;gap:7px}
    .field label{font-size:13px;font-weight:700;color:#2b3550}
    .field input,.field select,.field textarea{width:100%;padding:13px 14px;border:1px solid #dde3ef;border-radius:14px;background:#fff;color:#1d2942;font:inherit;outline:none}
    .field textarea{min-height:120px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{border-color:#9aa7ff;box-shadow:0 0 0 4px rgba(92,99,255,.12)}
    .form-note{font-size:12px;color:var(--muted)}
    .footer-wrap{padding:24px 0 30px}
    footer{background:#151a27;color:#eef2ff;margin-top:18px}
    footer a{color:#c8d0ff}
    footer .footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:20px;padding:28px 0}
    footer .copy{border-top:1px solid rgba(255,255,255,.08);padding:14px 0 0;color:#b3bdd7;font-size:13px}
    .float-tools{position:fixed;right:16px;bottom:16px;display:grid;gap:10px;z-index:70}
    .float-tools a,.float-tools button{width:48px;height:48px;border-radius:16px;border:1px solid rgba(233,226,214,.9);background:#fff;box-shadow:var(--shadow);display:grid;place-items:center;cursor:pointer}
    .float-tools a:hover,.float-tools button:hover{transform:translateY(-2px)}
    .qr img{width:132px;border-radius:16px;border:1px solid #edf0f6}
    .muted{color:var(--muted)}
    .blog-list{display:grid;gap:10px}
    .blog-list a{padding:12px 14px;border-radius:14px;background:#fff;border:1px solid #edf0f6;display:flex;justify-content:space-between;gap:14px}
    .blog-list a:hover{border-color:#cfd7ff;transform:translateY(-1px)}
    .mobile-only{display:none}
    .reveal{opacity:0;transform:translateY(16px);transition:.55s ease}
    .reveal.in{opacity:1;transform:none}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.steps,.cases,.reviews,.articles,.faq-list,.contact-grid,.split,footer .footer-grid{grid-template-columns:1fr}
      .hero-meta{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      nav{display:none}
      .menu-btn{display:inline-grid;place-items:center}
      nav.open{display:block;position:absolute;left:0;right:0;top:100%;background:rgba(255,250,243,.98);border-bottom:1px solid var(--line);padding:14px 16px}
      nav.open .nav-links{display:grid;grid-template-columns:repeat(2,1fr)}
      nav.open .nav-cta{margin-top:12px}
      .mobile-only{display:inline-flex}
    }
    @media (max-width: 640px){
      .hero-card{padding:22px}
      .hero h2{font-size:32px}
      .container{width:min(100% - 22px,var(--container))}
      .nav-links{gap:6px}
      .nav-links a{font-size:12px;padding:7px 10px}
      .btn{padding:11px 14px}
      .grid-4,.grid-3,.steps,.cases,.reviews,.articles,.faq-list{grid-template-columns:1fr}
    }