:root{
      --bg:#f7f8fc;
      --panel:#ffffff;
      --panel-2:#f2f6ff;
      --text:#182233;
      --muted:#5f6b81;
      --line:#dfe6f4;
      --brand:#5b6cff;
      --brand-2:#18b8a7;
      --brand-3:#ff8a5b;
      --shadow:0 18px 50px rgba(30, 54, 120, .10);
      --radius:22px;
      --radius-sm:16px;
      --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;background:
      radial-gradient(circle at 10% 10%, rgba(91,108,255,.08), transparent 26%),
      radial-gradient(circle at 90% 8%, rgba(24,184,167,.10), transparent 22%),
      linear-gradient(180deg,#ffffff 0%, #f7f8fc 32%, #f4f7fd 100%);
      color:var(--text);line-height:1.6}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
    .header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.84);backdrop-filter:blur(14px);border-bottom:1px solid rgba(223,230,244,.85)}
    .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:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;box-shadow:0 8px 24px rgba(91,108,255,.12)}
    .brand strong{display:block;font-size:18px;line-height:1.15}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-links{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:14px}
    .nav-links a{font-size:14px;color:#31405c;padding:8px 10px;border-radius:999px;transition:.2s}
    .nav-links a:hover,.nav-links a:focus{background:#eef3ff;color:#20304d}
    .menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    .hero{padding:28px 0 22px}
    .hero-grid{display:grid;grid-template-columns:1.35fr .95fr;gap:22px;align-items:stretch}
    .hero-card,.glass-card,.panel,.form-card,.faq-item,.review-card,.article-card,.case-card,.pricing-card,.timeline-card,.compare-card{background:linear-gradient(180deg,rgba(255,255,255,.96),rgba(249,251,255,.98));border:1px solid rgba(223,230,244,.92);box-shadow:var(--shadow);border-radius:var(--radius)}
    .hero-card{padding:30px;position:relative;overflow:hidden}
    .hero-card:before,.hero-card:after{content:"";position:absolute;border-radius:50%;filter:blur(2px);pointer-events:none}
    .hero-card:before{width:240px;height:240px;background:radial-gradient(circle,rgba(91,108,255,.20),transparent 68%);right:-80px;top:-60px}
    .hero-card:after{width:180px;height:180px;background:radial-gradient(circle,rgba(24,184,167,.18),transparent 68%);right:40px;bottom:-80px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#eef4ff;color:#3146b8;border:1px solid #d9e3ff;padding:8px 12px;border-radius:999px;font-size:13px;font-weight:600}
    h1{margin:16px 0 12px;font-size:clamp(30px,4vw,52px);line-height:1.08;letter-spacing:-.02em}
    .lead{margin:0;color:var(--muted);font-size:16px;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:14px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.2s;min-height:46px}
    .btn-primary{background:linear-gradient(135deg,var(--brand),#7f5bff);color:#fff;box-shadow:0 14px 28px rgba(91,108,255,.22)}
    .btn-secondary{background:#fff;color:#26324a;border:1px solid var(--line)}
    .btn:hover{transform:translateY(-2px);box-shadow:0 14px 24px rgba(27,43,92,.12)}
    .hero-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px}
    .mini-stat{padding:16px;border-radius:18px;background:linear-gradient(180deg,#f8fbff,#fff);border:1px solid var(--line)}
    .mini-stat strong{display:block;font-size:24px;line-height:1.1}
    .mini-stat span{display:block;margin-top:6px;color:var(--muted);font-size:13px}
    .hero-side{display:grid;gap:16px}
    .stack-card{padding:20px}
    .stack-top{display:flex;align-items:center;justify-content:space-between;gap:14px}
    .tag{display:inline-flex;align-items:center;border-radius:999px;padding:6px 10px;background:#edf8f6;color:#15786d;font-size:12px;font-weight:700}
    .logo-wrap{display:flex;align-items:center;gap:12px;margin-top:14px}
    .logo-wrap img{width:68px;height:68px;object-fit:contain;border-radius:18px;background:#fff;padding:8px;border:1px solid var(--line)}
    .stack-list{display:grid;gap:10px;margin:16px 0 0;padding:0;list-style:none}
    .stack-list li{display:flex;gap:10px;align-items:flex-start;color:#33445f;font-size:14px}
    .stack-list i{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));margin-top:7px;flex:none}
    .section{padding:14px 0 8px}
    .section h2{margin:0 0 12px;font-size:clamp(22px,2.6vw,34px);line-height:1.15}
    .section p.section-desc{margin:0 0 18px;color:var(--muted);max-width:72ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .card{padding:20px}
    .card h3{margin:12px 0 8px;font-size:18px}
    .card p{margin:0;color:var(--muted)}
    .icon-badge{width:44px;height:44px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(91,108,255,.12),rgba(24,184,167,.12));color:#3048b7;font-weight:800}
    .chips{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#33445f;font-size:13px}
    .gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .gallery figure{margin:0;overflow:hidden;border-radius:20px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    .gallery img{width:100%;height:auto;display:block}
    .workflow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
    .step{padding:18px;border-radius:18px;background:#fff;border:1px solid var(--line);position:relative}
    .step span{display:inline-flex;width:30px;height:30px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;align-items:center;justify-content:center;font-weight:800}
    .step h3{margin:12px 0 8px;font-size:16px}
    .step p{margin:0;color:var(--muted);font-size:14px}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
    th{background:#f5f8ff;font-size:14px}
    td{color:#33445f}
    .badge-star{display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border-radius:999px;background:#fff4e8;color:#c15b15;font-weight:700;font-size:13px}
    .compare-highlight{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .score-box{padding:22px}
    .score-box strong{font-size:44px;line-height:1}
    .progress{height:10px;border-radius:999px;background:#e9eef8;overflow:hidden;margin-top:14px}
    .progress div{width:99%;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand-2))}
    .faq{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;background:transparent;border:0;padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:16px;font-weight:700;color:var(--text);text-align:left;cursor:pointer}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 20px}
    .faq-item.open .faq-a{max-height:180px;padding-bottom:18px}
    .faq-a p{margin:0;color:var(--muted)}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review-card{padding:20px}
    .review-card .top{display:flex;align-items:center;justify-content:space-between;gap:12px}
    .review-card h3{margin:0;font-size:16px}
    .stars{color:#ffac33;font-size:15px;letter-spacing:1px}
    .review-card p{margin:12px 0 0;color:var(--muted)}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article-card{padding:20px}
    .article-card time{display:block;color:var(--brand);font-size:13px;font-weight:700;margin-bottom:10px}
    .article-card a{display:inline-flex;margin-top:12px;color:#3346c7;font-weight:700}
    .contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px;align-items:start}
    .form-card,.panel{padding:22px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{display:block;font-size:14px;font-weight:700;margin:0 0 8px}
    input,select,textarea{width:100%;border:1px solid var(--line);border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--text);outline:none}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(91,108,255,.55);box-shadow:0 0 0 4px rgba(91,108,255,.10)}
    .full{grid-column:1/-1}
    .contact-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
    .contact-list li{display:flex;justify-content:space-between;gap:14px;padding:13px 14px;border-radius:14px;background:#f8fbff;border:1px solid var(--line);color:#33445f}
    .footer{margin-top:18px;padding:24px 0 28px;border-top:1px solid var(--line);background:linear-gradient(180deg,#f7f9ff,#eef3ff)}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px}
    .footer h3{margin:0 0 12px;font-size:16px}
    .footer p,.footer a,.footer li{color:#30405e;font-size:14px}
    .footer ul{margin:0;padding:0;list-style:none;display:grid;gap:8px}
    .footer .links{display:flex;flex-wrap:wrap;gap:10px}
    .footer .links a{padding:8px 10px;border:1px solid rgba(223,230,244,.95);border-radius:999px;background:#fff}
    .floating{position:fixed;right:16px;bottom:16px;z-index:40;display:grid;gap:10px}
    .float-btn{width:52px;height:52px;border-radius:18px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 16px 30px rgba(40,69,173,.22);font-weight:800}
    .customer-box{position:fixed;left:16px;bottom:16px;z-index:40;display:none}
    .customer-panel{width:220px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
    .customer-panel img{width:100%;border-radius:14px}
    .muted{color:var(--muted)}
    .timeline{display:grid;gap:14px}
    .timeline-item{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start;padding:18px;background:#fff;border:1px solid var(--line);border-radius:18px}
    .timeline-item .dot{width:14px;height:14px;border-radius:50%;margin-top:6px;background:linear-gradient(135deg,var(--brand),var(--brand-2))}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:8px 11px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#33445f}
    .reveal{opacity:0;transform:translateY(18px);transition:.65s ease}
    .reveal.show{opacity:1;transform:none}
    @media (max-width: 1024px){
      .hero-grid,.contact-grid,.footer-grid,.grid-4,.grid-3,.reviews,.articles,.compare-highlight{grid-template-columns:1fr 1fr}
      .workflow{grid-template-columns:1fr 1fr 1fr}
    }
    @media (max-width: 760px){
      .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)}
      .nav-links.show{display:grid}
      .menu-btn{display:inline-flex}
      .hero-grid,.contact-grid,.footer-grid,.grid-4,.grid-3,.reviews,.articles,.compare-highlight,.workflow,.hero-meta,.form-grid,.gallery{grid-template-columns:1fr}
      .hero-card{padding:22px}
      h1{font-size:32px}
      .section{padding-top:12px}
      .header{position:sticky}
      .floating{right:12px;bottom:12px}
    }