:root{
      --bg:#f7f8fc;
      --bg2:#eef3ff;
      --card:#ffffff;
      --text:#142033;
      --muted:#5d6b82;
      --line:#dbe3f2;
      --brand:#5b6cff;
      --brand2:#9a5cff;
      --accent:#12b3a8;
      --warm:#ff8f6b;
      --shadow:0 18px 50px rgba(23,40,79,.10);
      --radius:22px;
      --max:1200px;
    }
    *{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;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 10%, rgba(91,108,255,.12), transparent 24%),
        radial-gradient(circle at 90% 8%, rgba(18,179,168,.12), transparent 22%),
        linear-gradient(180deg, #fbfcff 0%, var(--bg) 56%, #f4f7fd 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--max));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:50;
      backdrop-filter: blur(16px);
      background:rgba(247,248,252,.82);
      border-bottom:1px solid rgba(219,227,242,.8);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      min-height:74px;padding:12px 0;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand img{width:42px;height:42px;object-fit:contain;border-radius:10px;background:#fff;padding:4px;box-shadow:0 6px 20px rgba(22,40,79,.08)}
    .brand strong{display:block;font-size:1.02rem;line-height:1.1}
    .brand span{display:block;font-size:.82rem;color:var(--muted);margin-top:3px}
    .nav-links{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:flex-end}
    .nav-links a{
      padding:9px 12px;border:1px solid transparent;border-radius:999px;color:#30415d;font-size:.92rem;
    }
    .nav-links a:hover{border-color:var(--line);background:#fff}
    .nav-cta{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;
      transition:.25s ease;cursor:pointer;white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 28px rgba(91,108,255,.24)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(91,108,255,.28)}
    .btn-ghost{background:#fff;border-color:var(--line);color:#243146}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 12px}
    .hero{padding:38px 0 18px}
    .hero-grid{
      display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:stretch
    }
    .hero-panel,.glass-card,.section-card,.faq-item,.review-card,.article-card,.service-card,.metric-card,.case-card,.compare-card,.process-card,.price-card,.tag-cloud,.form-card{
      background:rgba(255,255,255,.9);border:1px solid rgba(219,227,242,.9);border-radius:var(--radius);box-shadow:var(--shadow)
    }
    .hero-panel{padding:34px;position:relative;overflow:hidden}
    .hero-panel:before,.hero-panel:after{
      content:"";position:absolute;border-radius:50%;filter:blur(2px);pointer-events:none
    }
    .hero-panel:before{width:240px;height:240px;right:-80px;top:-70px;background:radial-gradient(circle, rgba(154,92,255,.26), transparent 62%)}
    .hero-panel:after{width:220px;height:220px;left:-90px;bottom:-80px;background:radial-gradient(circle, rgba(18,179,168,.18), transparent 62%)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:linear-gradient(135deg,rgba(91,108,255,.12),rgba(18,179,168,.10));color:#334469;font-weight:700;font-size:.88rem}
    h1{margin:16px 0 12px;font-size:clamp(2rem,4vw,3.6rem);line-height:1.08;letter-spacing:-.02em}
    .lead{margin:0;color:var(--muted);font-size:1.05rem;line-height:1.8;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-highlights{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}
    .mini-stat{
      padding:14px 16px;border-radius:18px;background:linear-gradient(180deg,#fff, #f7f9ff);border:1px solid var(--line)
    }
    .mini-stat strong{display:block;font-size:1.15rem}
    .mini-stat span{display:block;margin-top:4px;color:var(--muted);font-size:.88rem;line-height:1.5}
    .hero-side{display:grid;gap:14px}
    .side-card{padding:20px}
    .side-card h2{margin:0 0 8px;font-size:1.12rem}
    .side-card p,.section-card p,.service-card p,.case-card p,.review-card p,.article-card p{color:var(--muted);line-height:1.75}
    .logo-row{display:flex;align-items:center;gap:14px;margin-top:12px}
    .logo-row img{width:74px;height:74px;object-fit:contain;background:#fff;border-radius:18px;padding:8px;border:1px solid var(--line)}
    .metrics{padding:18px 0 6px}
    .metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .metric-card{padding:20px}
    .metric-card strong{display:block;font-size:1.7rem;line-height:1}
    .metric-card span{display:block;margin-top:8px;color:var(--muted);line-height:1.6}
    section{padding:18px 0}
    .section-card{padding:28px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:18px}
    .section-head h2{margin:0;font-size:clamp(1.4rem,2.5vw,2.1rem)}
    .section-head p{margin:0;color:var(--muted);max-width:68ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .service-card,.case-card,.review-card,.article-card,.process-card,.price-card,.compare-card{padding:20px}
    .service-card h3,.case-card h3,.review-card h3,.article-card h3,.process-card h3,.price-card h3{margin:0 0 8px;font-size:1.06rem}
    .icon-badge{
      width:44px;height:44px;border-radius:14px;display:grid;place-items:center;margin-bottom:14px;
      background:linear-gradient(135deg,rgba(91,108,255,.14),rgba(18,179,168,.12));color:#314163;font-weight:800
    }
    .pill-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
    .pill{padding:7px 10px;border-radius:999px;background:#f5f7ff;border:1px solid var(--line);font-size:.88rem;color:#31415d}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .process-card strong{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;margin-bottom:12px}
    .compare-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:14px}
    .table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px;background:#fff}
    table{width:100%;border-collapse:collapse;min-width:720px}
    th,td{padding:14px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#f5f7ff;color:#273553;font-size:.92rem}
    td{color:#31415d;line-height:1.6}
    .score{
      display:grid;gap:14px;align-content:start
    }
    .score-box{padding:22px;background:linear-gradient(135deg,rgba(91,108,255,.10),rgba(18,179,168,.10));border:1px solid rgba(91,108,255,.18);border-radius:20px}
    .stars{color:#ffb400;font-size:1.22rem;letter-spacing:2px}
    .faq-list{display:grid;gap:10px}
    .faq-item{overflow:hidden}
    .faq-q{
      width:100%;background:none;border:0;padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;
      cursor:pointer;color:var(--text);font-size:1rem;font-weight:700;text-align:left
    }
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease,padding .28s ease;border-top:1px solid transparent}
    .faq-item.open .faq-a{max-height:240px;padding:0 20px 18px;border-top-color:var(--line)}
    .faq-a p{margin:0;color:var(--muted);line-height:1.75}
    .articles-grid,.reviews-grid,.case-grid,.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .article-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px;color:#65728c;font-size:.88rem}
    .tag-cloud{padding:20px}
    .tag-cloud .pill{margin:0 8px 8px 0;display:inline-flex}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:8px}
    .field label{font-weight:700;color:#32415d;font-size:.95rem}
    input,select,textarea{
      width:100%;border:1px solid var(--line);border-radius:14px;padding:13px 14px;background:#fff;color:var(--text);
      font:inherit;outline:none;transition:.2s ease
    }
    input:focus,select:focus,textarea:focus{border-color:rgba(91,108,255,.55);box-shadow:0 0 0 4px rgba(91,108,255,.12)}
    textarea{min-height:132px;resize:vertical}
    .footer{
      padding:24px 0 34px;margin-top:6px;border-top:1px solid rgba(219,227,242,.9);
      background:linear-gradient(180deg,rgba(247,248,252,.7),rgba(239,243,252,.95));
      color:#203046
    }
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px;align-items:start}
    .footer h3{margin:0 0 10px}
    .footer a{color:#223455}
    .footer a:hover{color:var(--brand)}
    .footer small,.footer p{color:#5e6d84;line-height:1.8}
    .float-tools{
      position:fixed;right:18px;bottom:18px;display:grid;gap:10px;z-index:60
    }
    .float-tools a,.back-top{
      width:48px;height:48px;border-radius:16px;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 28px rgba(91,108,255,.24)
    }
    .back-top{border:0;cursor:pointer}
    .mobile-panel{display:none}
    .image-strip{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .image-strip img{border-radius:18px;border:1px solid var(--line);background:#fff}
    .case-card ul,.price-card ul{margin:12px 0 0;padding-left:18px;color:var(--muted);line-height:1.75}
    .service-card:hover,.case-card:hover,.review-card:hover,.article-card:hover,.process-card:hover,.price-card:hover,.metric-card:hover{transform:translateY(-3px);transition:.22s ease;box-shadow:0 20px 40px rgba(23,40,79,.12)}
    @media (max-width: 960px){
      .hero-grid,.compare-wrap,.footer-grid,.grid-3,.workflow,.articles-grid,.reviews-grid,.case-grid,.price-grid,.metrics-grid{grid-template-columns:1fr 1fr}
      .hero-highlights{grid-template-columns:1fr}
      .form-grid,.image-strip{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-panel{display:none;padding:0 0 16px}
      .mobile-panel.open{display:block}
      .mobile-panel .nav-links{display:flex;justify-content:flex-start;padding:12px 0 0}
      .hero-panel{padding:26px}
    }
    @media (max-width: 640px){
      .container{width:min(100% - 20px, var(--max))}
      .hero-grid,.compare-wrap,.footer-grid,.grid-3,.workflow,.articles-grid,.reviews-grid,.case-grid,.price-grid,.metrics-grid{grid-template-columns:1fr}
      .section-card,.hero-panel{padding:20px}
      .section-head{align-items:start;flex-direction:column}
      .nav{min-height:68px}
      .btn{width:100%}
      .nav-cta{display:none}
      .mobile-panel .nav-cta{display:grid}
      .float-tools{right:12px;bottom:12px}
    }
    .reveal{opacity:0;transform:translateY(16px);transition:.55s ease}
    .reveal.show{opacity:1;transform:none}