:root{
      --bg:#f6f8fc;
      --panel:#ffffff;
      --panel-2:#f8fbff;
      --text:#122033;
      --muted:#5d6b82;
      --line:#dbe4f0;
      --brand:#2f7cf6;
      --brand-2:#7c4dff;
      --accent:#11b5a4;
      --warm:#ffb347;
      --shadow:0 18px 40px rgba(18,32,51,.08);
      --shadow-2:0 12px 26px rgba(47,124,246,.14);
      --radius:22px;
      --radius-sm:16px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(47,124,246,.10), transparent 30%),
        radial-gradient(circle at right 20%, rgba(124,77,255,.08), transparent 28%),
        linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
    }
    a{color:var(--brand);text-decoration:none}
    img{display:block;max-width:100%}
    .container{max-width:var(--max);margin:0 auto;padding:0 20px}
    .topbar{
      position:sticky;top:0;z-index:50;
      backdrop-filter:blur(16px);
      background:rgba(255,255,255,.82);
      border-bottom:1px solid rgba(219,228,240,.85);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      min-height:76px;
    }
    .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;padding:4px;box-shadow:0 8px 18px rgba(47,124,246,.10)}
    .brand strong{font-size:18px;letter-spacing:.4px}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:2px}
    .menu{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    .menu a{font-size:14px;color:#24344d;padding:8px 10px;border-radius:999px;transition:.2s ease}
    .menu a:hover,.menu a.active{background:rgba(47,124,246,.10);color:var(--brand)}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:12px 18px;border-radius:999px;border:1px solid transparent;
      font-weight:700;font-size:14px;transition:.22s ease;cursor:pointer;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      color:#fff;box-shadow:var(--shadow-2);
    }
    .btn-secondary{
      background:#fff;color:var(--text);border-color:var(--line);
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .burger{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px}
    .hero{
      padding:34px 0 24px;
      position:relative;
      overflow:hidden;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.18fr .82fr;gap:24px;align-items:stretch;
    }
    .hero-main,.hero-side,.section-card,.info-card,.review-card,.faq-item,.article-card,.feature-card,.step-card,.compare-card,.form-card,.quote-card,.price-card{
      background:linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,251,255,.98));
      border:1px solid rgba(219,228,240,.95);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-main{padding:32px;position:relative;isolation:isolate}
    .hero-main:before,.hero-main:after{
      content:"";position:absolute;border-radius:999px;filter:blur(2px);z-index:-1;
    }
    .hero-main:before{width:180px;height:180px;background:rgba(47,124,246,.12);right:-28px;top:-36px}
    .hero-main:after{width:120px;height:120px;background:rgba(17,181,164,.12);left:50%;bottom:-34px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;background:rgba(47,124,246,.09);
      color:var(--brand);font-size:13px;font-weight:700;
    }
    h1{margin:16px 0 14px;font-size:clamp(32px,4.2vw,54px);line-height:1.08;letter-spacing:-.03em}
    .hero p{margin:0;color:var(--muted);font-size:16px;line-height:1.9;max-width:60ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-stats{
      display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px
    }
    .stat{
      padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff,#f6faff);
      border:1px solid var(--line)
    }
    .stat strong{display:block;font-size:22px}
    .stat span{font-size:13px;color:var(--muted)}
    .hero-side{padding:20px;display:grid;gap:14px}
    .mini-panel{
      padding:18px;border-radius:20px;background:linear-gradient(135deg, rgba(47,124,246,.08), rgba(124,77,255,.06));
      border:1px solid rgba(47,124,246,.14)
    }
    .mini-panel h3{margin:0 0 8px;font-size:18px}
    .mini-panel p{margin:0;color:var(--muted);font-size:14px;line-height:1.8}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span,.pill{
      display:inline-flex;align-items:center;padding:8px 12px;border-radius:999px;
      background:#fff;border:1px solid var(--line);font-size:13px;color:#2a3952
    }
    .section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:8px 0 16px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:68ch;line-height:1.8}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .feature-card,.step-card,.review-card,.article-card,.compare-card,.price-card,.quote-card,.info-card{padding:20px}
    .feature-card h3,.step-card h3,.review-card h3,.article-card h3,.price-card h3{margin:0 0 10px;font-size:18px}
    .feature-card p,.step-card p,.review-card p,.article-card p,.compare-card p,.info-card p{margin:0;color:var(--muted);line-height:1.8}
    .kicker{font-size:12px;color:var(--brand);font-weight:700;letter-spacing:.08em;text-transform:uppercase}
    .feature-card{transition:transform .22s ease, box-shadow .22s ease}
    .feature-card:hover,.step-card:hover,.article-card:hover,.review-card:hover{transform:translateY(-4px);box-shadow:0 20px 42px rgba(18,32,51,.11)}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .workflow .step-card{position:relative;overflow:hidden}
    .workflow .step-card:before{
      content:attr(data-step);position:absolute;right:16px;top:14px;font-size:42px;font-weight:800;color:rgba(47,124,246,.08)
    }
    .compare-wrap{overflow:auto;border-radius:20px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:780px}
    th,td{padding:16px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#f7fbff;font-size:14px}
    td{color:#324055;font-size:14px;line-height:1.7}
    .badge{
      display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:rgba(17,181,164,.10);color:#0c7f74;font-size:12px;font-weight:700
    }
    .rating{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:12px
    }
    .stars{color:#f0a500;font-size:18px;letter-spacing:2px}
    .price-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
    .price-card .amount{font-size:30px;font-weight:800;margin:8px 0;color:var(--text)}
    .timeline{display:grid;gap:14px}
    .time-item{
      display:grid;grid-template-columns:110px 1fr;gap:16px;align-items:start;padding:18px;border:1px solid var(--line);border-radius:18px;background:#fff
    }
    .time-item strong{font-size:14px;color:var(--brand)}
    .time-item span{color:var(--muted);font-size:14px;line-height:1.8}
    .case-gallery{display:grid;grid-template-columns:1.2fr .8fr;gap:16px}
    .case-main,.case-side{display:grid;gap:16px}
    .media-box{
      border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#fff;box-shadow:var(--shadow)
    }
    .media-box img{width:100%;height:auto;display:block}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article-card .meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:12px}
    .form-card form{display:grid;gap:14px}
    .fields{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    input,select,textarea{
      width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:14px;
      font:inherit;color:var(--text);background:#fff;outline:none;transition:border-color .2s ease, box-shadow .2s ease
    }
    textarea{min-height:130px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(47,124,246,.45);box-shadow:0 0 0 4px rgba(47,124,246,.10)}
    .form-note{font-size:13px;color:var(--muted);line-height:1.8}
    .faq-list{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;border:0;background:transparent;padding:18px 20px;font:inherit;text-align:left;
      display:flex;justify-content:space-between;align-items:center;gap:16px;cursor:pointer;color:var(--text);font-weight:700
    }
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 20px}
    .faq-item.active .faq-a{max-height:220px;padding-bottom:18px}
    .faq-item .icon{transition:transform .25s ease}
    .faq-item.active .icon{transform:rotate(45deg)}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review-card .role{margin-top:10px;color:var(--brand);font-size:13px;font-weight:700}
    .footer{
      margin-top:20px;padding:22px 0 34px;border-top:1px solid rgba(219,228,240,.9);background:linear-gradient(180deg,#f8fbff, #f2f6fc)
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px}
    .footer h3{margin:0 0 12px;font-size:18px}
    .footer p,.footer li,.footer a{color:#314158;font-size:14px;line-height:1.9}
    .footer ul{padding:0;margin:0;list-style:none}
    .footer .links{display:flex;flex-wrap:wrap;gap:10px}
    .footer .links a{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line)}
    .floating{
      position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px
    }
    .floating a,.floating button{
      width:52px;height:52px;border-radius:16px;border:1px solid rgba(47,124,246,.18);
      background:#fff;box-shadow:var(--shadow);display:grid;place-items:center;cursor:pointer
    }
    .floating svg{width:22px;height:22px;fill:var(--brand)}
    .contact-float{
      position:fixed;left:18px;bottom:18px;z-index:55;background:#fff;border:1px solid var(--line);
      border-radius:20px;box-shadow:var(--shadow);padding:14px;width:min(320px,calc(100vw - 36px))
    }
    .contact-float .head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
    .contact-float strong{font-size:15px}
    .contact-float .qr{display:flex;gap:14px;align-items:center}
    .contact-float img{width:88px;height:88px;object-fit:cover;border-radius:14px;border:1px solid var(--line)}
    .fade-in{opacity:0;transform:translateY(18px);transition:.7s ease}
    .fade-in.visible{opacity:1;transform:none}
    .mobile-only{display:none}
    .desktop-only{display:block}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.workflow,.price-grid,.reviews,.articles,.footer-grid,.case-gallery{grid-template-columns:1fr}
      .nav{min-height:68px}
      .menu{display:none;position:absolute;left:20px;right:20px;top:76px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow)}
      .menu.open{display:flex;flex-direction:column;align-items:stretch}
      .burger{display:inline-flex}
      .nav-cta .btn-secondary{display:none}
      .fields{grid-template-columns:1fr}
      .hero-main,.hero-side{padding:22px}
      .hero-stats{grid-template-columns:1fr}
      .section-head{align-items:start;flex-direction:column}
      .time-item{grid-template-columns:1fr}
      .floating{right:12px;bottom:12px}
      .contact-float{left:12px;bottom:12px}
    }
    @media (max-width: 640px){
      .container{padding:0 14px}
      h1{font-size:30px}
      .hero{padding-top:22px}
      .hero-actions .btn{width:100%}
      .btn{width:100%}
      .nav-cta{display:none}
      .mobile-only{display:block}
      .desktop-only{display:none}
      .contact-float{display:none}
    }