:root{
      --bg:#f7f5f0;
      --surface:#ffffff;
      --surface-2:#fffaf2;
      --line:#e7dfd2;
      --text:#1f2a37;
      --muted:#5b6573;
      --brand:#4f7cff;
      --brand-2:#8a5cff;
      --brand-3:#ff7a59;
      --accent:#2fc18c;
      --shadow:0 18px 50px rgba(39, 52, 72, .10);
      --shadow-soft:0 10px 30px rgba(39, 52, 72, .08);
      --radius:22px;
      --radius-sm:16px;
      --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;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(79,124,255,.12), transparent 24%),
        radial-gradient(circle at 86% 16%, rgba(255,122,89,.12), transparent 20%),
        radial-gradient(circle at 72% 74%, rgba(47,193,140,.10), transparent 22%),
        linear-gradient(180deg, #fffdf9 0%, var(--bg) 42%, #f8f7f3 100%);
      line-height:1.7;
    }
    a{color:var(--brand);text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .topbar, header, main, footer{position:relative}
    .topbar{
      border-bottom:1px solid rgba(231,223,210,.8);
      background:rgba(255,255,255,.66);
      backdrop-filter:blur(14px);
      position:sticky;
      top:0;
      z-index:60;
    }
    .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 img{width:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;border:1px solid var(--line);padding:5px}
    .brand strong{display:block;font-size:1.02rem;line-height:1.1}
    .brand span{display:block;font-size:.84rem;color:var(--muted)}
    .nav-toggle{
      display:none;border:1px solid var(--line);background:#fff;color:var(--text);
      border-radius:14px;padding:10px 12px;font-weight:700
    }
    .nav-links{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{color:var(--text);font-size:.95rem;font-weight:600;padding:8px 10px;border-radius:999px}
    .nav-links a:hover{background:#f3f6ff;color:var(--brand)}
    .cta-link{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff !important;box-shadow:0 12px 24px rgba(79,124,255,.22)}
    .cta-link:hover{transform:translateY(-1px)}
    .hero{
      padding:42px 0 28px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:22px;
      align-items:stretch;
    }
    .hero-copy,.hero-side,.panel,.card,.faq-item,.form-card,.review-card,.article-card,.timeline-item,.compare-card,.service-card,.price-card,.tag-card,.case-card,.info-card,.metric{
      background:rgba(255,255,255,.82);
      border:1px solid rgba(231,223,210,.9);
      box-shadow:var(--shadow-soft);
      border-radius:var(--radius);
    }
    .hero-copy{padding:30px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:999px;
      background:linear-gradient(135deg, rgba(79,124,255,.10), rgba(255,122,89,.12));
      color:#3757bf;font-weight:700;font-size:.86rem
    }
    h1{margin:16px 0 12px;font-size:clamp(2rem, 4vw, 3.6rem);line-height:1.12;letter-spacing:-.03em}
    .hero-copy p{margin:0;color:var(--muted);font-size:1.04rem}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0 18px}
    .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:.24s ease;
      cursor:pointer
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 16px 30px rgba(79,124,255,.22)}
    .btn-secondary{background:#fff;color:var(--text);border-color:var(--line)}
    .btn:hover,.card:hover,.review-card:hover,.article-card:hover,.service-card:hover,.case-card:hover,.faq-item:hover,.compare-card:hover,.price-card:hover,.tag-card:hover{transform:translateY(-3px)}
    .hero-badges{display:flex;gap:10px;flex-wrap:wrap}
    .pill{padding:8px 12px;border-radius:999px;background:rgba(79,124,255,.08);color:#3556c0;font-size:.88rem;font-weight:600}
    .hero-side{padding:18px;display:grid;gap:14px;align-content:start;background:
      linear-gradient(180deg, rgba(255,255,255,.95), rgba(255,248,241,.84));
    }
    .hero-panel{
      padding:18px;border-radius:18px;background:linear-gradient(135deg, rgba(79,124,255,.08), rgba(47,193,140,.10));
      border:1px solid rgba(79,124,255,.14)
    }
    .hero-panel h2{margin:0 0 8px;font-size:1.08rem}
    .hero-panel ul{margin:0;padding-left:18px;color:var(--muted)}
    .metrics{
      display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px
    }
    .metric{padding:18px}
    .metric strong{display:block;font-size:1.6rem;line-height:1.1}
    .metric span{display:block;color:var(--muted);font-size:.92rem;margin-top:6px}
    section{padding:16px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:12px;margin:0 0 14px}
    .section-head h2{margin:0;font-size:1.7rem}
    .section-head p{margin:0;color:var(--muted);max-width:720px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .service-card,.case-card,.review-card,.article-card,.compare-card,.price-card,.tag-card,.info-card,.timeline-item{padding:20px}
    .service-card h3,.case-card h3,.review-card h3,.article-card h3,.price-card h3,.tag-card h3,.compare-card h3{margin:0 0 10px;font-size:1.08rem}
    .service-card p,.case-card p,.review-card p,.article-card p,.price-card p,.tag-card p,.info-card p{margin:0;color:var(--muted)}
    .icon{
      width:44px;height:44px;border-radius:14px;display:grid;place-items:center;margin-bottom:12px;
      background:linear-gradient(135deg, rgba(79,124,255,.12), rgba(255,122,89,.14));color:#3958c6;font-weight:800
    }
    .two-col{
      display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start
    }
    .panel{padding:22px}
    .panel h3{margin:0 0 10px}
    .bullet-list{margin:0;padding-left:18px;color:var(--muted)}
    .bullet-list li{margin:8px 0}
    .tabs{
      display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px
    }
    .tab{border:1px solid var(--line);background:#fff;color:var(--text);padding:9px 12px;border-radius:999px;font-weight:700}
    .tab.active{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;border-color:transparent}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:14px 16px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}
    th{background:#faf7f1;font-size:.95rem}
    tr:last-child td{border-bottom:none}
    .score{
      display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(47,193,140,.10);color:#1d7b57;font-weight:700
    }
    .timeline{
      display:grid;grid-template-columns:repeat(4,1fr);gap:16px
    }
    .timeline-item{position:relative}
    .timeline-item .step{font-size:.85rem;color:#6a7280;font-weight:700}
    .timeline-item h3{margin:8px 0 8px;font-size:1.02rem}
    .timeline-item::after{
      content:"";position:absolute;inset:auto 16px 16px auto;width:10px;height:10px;border-radius:50%;
      background:linear-gradient(135deg,var(--brand),var(--brand-3));opacity:.75
    }
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;text-align:left;border:0;background:transparent;color:var(--text);
      padding:18px 20px;font:inherit;font-weight:700;display:flex;justify-content:space-between;gap:12px;cursor:pointer
    }
    .faq-a{padding:0 20px 18px;color:var(--muted);display:none}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .chev{transform:rotate(180deg)}
    .review-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
    .stars{color:#ffb340;letter-spacing:1px}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article-card .meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
    .tag{font-size:.83rem;padding:6px 10px;border-radius:999px;background:#f3f6ff;color:#3556c0;font-weight:700}
    .contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .field{display:flex;flex-direction:column;gap:7px}
    .field label{font-size:.92rem;font-weight:700;color:#344054}
    .field input,.field select,.field textarea{
      width:100%;border:1px solid var(--line);background:#fff;border-radius:14px;padding:12px 14px;font:inherit;color:var(--text);outline:none
    }
    .field textarea{min-height:120px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(79,124,255,.6);box-shadow:0 0 0 4px rgba(79,124,255,.10)}
    .full{grid-column:1/-1}
    .contact-box{display:grid;gap:12px}
    .contact-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
    .qrcode{
      width:132px;height:132px;border-radius:18px;border:1px solid var(--line);overflow:hidden;background:#fff;display:grid;place-items:center
    }
    .qrcode img{width:100%;height:100%;object-fit:cover}
    .footer{
      margin-top:10px;padding:22px 0 30px;border-top:1px solid rgba(231,223,210,.9);background:rgba(255,255,255,.72)
    }
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:16px;align-items:start}
    .links{display:flex;flex-wrap:wrap;gap:10px}
    .links a,.footer a{color:#263246}
    .small{font-size:.92rem;color:var(--muted)}
    .chip-cloud{display:flex;gap:10px;flex-wrap:wrap}
    .chip{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#39485f;font-size:.9rem;font-weight:600}
    .sticky-tools{
      position:fixed;right:16px;bottom:16px;display:grid;gap:10px;z-index:70
    }
    .tool{
      width:48px;height:48px;border-radius:16px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-soft);
      display:grid;place-items:center;color:var(--brand);font-weight:900
    }
    .floating-kefu{
      position:fixed;left:16px;bottom:16px;z-index:70
    }
    .floating-kefu .tool{width:auto;padding:0 14px;gap:8px;display:inline-flex}
    .reveal{opacity:0;transform:translateY(16px);transition:.7s ease}
    .reveal.show{opacity:1;transform:translateY(0)}
    .hero-card-line{
      display:grid;grid-template-columns:repeat(2,1fr);gap:12px
    }
    .mini{
      padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)
    }
    .mini strong{display:block;font-size:1.02rem}
    .mini span{color:var(--muted);font-size:.92rem}
    .price-card .amount{font-size:1.9rem;font-weight:800;color:#1f2a37}
    .note{font-size:.88rem;color:#6b7280}
    @media (max-width: 980px){
      .hero-grid,.metrics,.grid-3,.grid-4,.timeline,.articles,.footer-grid,.two-col,.contact-grid{grid-template-columns:1fr}
      .nav-toggle{display:inline-flex}
      .nav-links{
        display:none;position:absolute;left:16px;right:16px;top:68px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch
      }
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 14px}
      .form-grid{grid-template-columns:1fr}
      .hero{padding-top:24px}
    }