:root{--ink:#17202a;--muted:#627080;--yellow:#ffd21f;--yellow2:#ffb800;--paper:#fffdf5;--line:#e8e1c9;--blue:#1558d6;--green:#16795b;--radius:14px;--shadow:0 16px 40px rgba(36,43,52,.09)}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;height:auto;display:block}
    .container{width:min(1180px,calc(100% - 36px));margin:0 auto}
    .topbar{background:#18212c;color:#fff;font-size:13px}
    .topbar .container{display:flex;justify-content:space-between;gap:18px;padding:8px 0}
    header{position:sticky;top:0;z-index:20;background:rgba(255,253,245,.95);border-bottom:1px solid rgba(232,225,201,.9);backdrop-filter:blur(14px)}
    .nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;font-weight:800;font-size:19px}
    .brand img{width:42px;max-height:42px;object-fit:contain}
    .nav-links{display:flex;align-items:center;gap:0}
    .nav-links a{font-size:14px;color:#35404d;padding:10px 9px;white-space:nowrap;border-bottom:2px solid transparent}
    .nav-links a:hover{color:#b27400;border-bottom-color:var(--yellow2)}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:8px;padding:12px 18px;background:var(--yellow);color:#171717;font-weight:800;cursor:pointer;transition:.25s ease;box-shadow:0 7px 0 #d39d00}
    .nav-cta:hover,.button:hover{transform:translateY(-2px);box-shadow:0 9px 0 #d39d00}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;padding:8px 10px;border-radius:8px;font-size:20px}
    .hero{position:relative;overflow:hidden;background:#ffe37a;padding:86px 0 72px;border-bottom:1px solid #e5b923}
    .hero:before,.hero:after{content:"";position:absolute;pointer-events:none;border:1px solid rgba(23,32,42,.16);transform:rotate(18deg)}
    .hero:before{width:360px;height:360px;right:-100px;top:-150px;border-radius:45%}
    .hero:after{width:220px;height:220px;left:-110px;bottom:-120px;border-radius:50%}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center}
    .eyebrow{display:inline-flex;padding:5px 11px;border:1px solid #1c2a36;border-radius:4px;font-size:13px;font-weight:800;letter-spacing:1px}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,6vw,72px);line-height:1.1;letter-spacing:0;margin:20px 0 22px;max-width:720px}
    .hero-copy{font-size:18px;max-width:650px;color:#263441}
    .actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0}
    .button.secondary{background:#18212c;color:#fff;box-shadow:0 7px 0 #071018}
    .button.secondary:hover{box-shadow:0 9px 0 #071018}
    .signal{background:#fffdf5;border:1px solid #d9c981;padding:24px;border-radius:var(--radius);box-shadow:var(--shadow)}
    .signal-title{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:18px;font-weight:800}
    .signal-title span{color:var(--green);font-size:13px}
    .signal-row{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14px}
    .signal-row strong{color:#bc7600}
    .section{padding:82px 0}
    .section.tint{background:#fff8dc}
    .section.dark{background:#18212c;color:#fff}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:34px}
    .section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;margin:0}
    .section-head p{max-width:560px;color:var(--muted);margin-bottom:2px}
    .dark .section-head p{color:#bdc8d1}
    .kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .kpi{padding:24px;background:#fff;border:1px solid var(--line);border-top:4px solid var(--yellow2);border-radius:10px}
    .kpi b{display:block;font-size:30px;line-height:1.2;margin-bottom:6px}
    .kpi span{color:var(--muted);font-size:14px}
    .intro{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start}
    .intro p{color:var(--muted)}
    .ticks{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:0;padding:0;list-style:none}
    .ticks li{background:#fff;border-left:4px solid var(--yellow2);padding:14px 16px;border-radius:4px;box-shadow:0 5px 18px rgba(50,50,20,.05)}
    .ticks li:before{content:"✓";color:var(--green);font-weight:800;margin-right:8px}
    .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .service{background:#fff;border:1px solid var(--line);padding:24px;border-radius:var(--radius);transition:.25s}
    .service:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#e8bb2d}
    .service .num{color:#b97900;font-weight:900;font-size:14px}
    .service h3{font-size:20px;margin:8px 0}
    .service p{color:var(--muted);font-size:14px;margin:0}
    .process{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:2px solid #e6b600}
    .step{padding:24px 18px 10px;border-right:1px solid var(--line);position:relative}
    .step:last-child{border-right:0}
    .step b{display:block;color:#b27400;font-size:28px;margin-bottom:10px}
    .step h3{font-size:17px;margin-bottom:6px}
    .step p{font-size:14px;color:var(--muted)}
    .solution-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .tag{border:1px solid #ead995;background:#fff;padding:15px 14px;border-radius:8px;font-weight:700;font-size:14px}
    .tag small{display:block;color:var(--muted);font-weight:400;margin-top:4px}
    .network{display:flex;flex-wrap:wrap;gap:10px}
    .network span{padding:8px 13px;border-radius:30px;background:#fff;border:1px solid var(--line);font-size:14px}
    .comparison{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:12px}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{text-align:left;padding:16px;border-bottom:1px solid var(--line);vertical-align:top}
    th{background:#fff3b9;font-size:15px}
    td:first-child{font-weight:800;width:22%}
    .good{color:var(--green);font-weight:800}
    .rating{display:flex;gap:16px;align-items:center;background:#18212c;color:#fff;padding:18px 22px;border-radius:10px;margin-bottom:18px}
    .stars{color:var(--yellow);font-size:24px;letter-spacing:3px}
    .rating strong{font-size:28px}
    .case-grid,.review-grid,.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .case,.review,.article{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
    .case img,.article img{width:100%;aspect-ratio:16/8;object-fit:cover}
    .case-body,.review-body,.article-body{padding:20px}
    .case h3,.review h3,.article h3{margin-bottom:8px;font-size:18px}
    .case p,.review p,.article p{color:var(--muted);font-size:14px;margin-bottom:0}
    .review{padding:20px}
    .review-body{padding:0}
    .review .quote{color:#b27400;font-size:25px;line-height:1}
    .review footer{margin-top:18px;color:#18212c;font-weight:800;font-size:13px}
    .timeline{border-left:3px solid var(--yellow2);padding-left:24px;display:grid;gap:24px}
    .timeline article{position:relative}
    .timeline article:before{content:"";position:absolute;width:11px;height:11px;background:var(--yellow2);border:3px solid var(--paper);border-radius:50%;left:-32px;top:7px}
    .timeline h3{margin-bottom:4px}
    .timeline p{margin:0;color:var(--muted)}
    .price-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
    .price-box{background:#fff;border:1px solid var(--line);padding:26px;border-radius:12px}
    .price-line{display:flex;justify-content:space-between;border-bottom:1px dashed var(--line);padding:13px 0;gap:15px}
    .price-line span:last-child{font-weight:800;color:#b27400}
    .faq{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    details{background:#fff;border:1px solid var(--line);border-radius:8px;padding:16px 18px}
    summary{cursor:pointer;font-weight:800;padding-right:15px}
    details p{color:var(--muted);font-size:14px;margin:12px 0 0}
    .contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:30px;align-items:start}
    .contact-panel{background:#18212c;color:#fff;border-radius:14px;padding:30px}
    .contact-panel p{color:#c8d1d8}
    .contact-info{display:grid;gap:10px;margin:22px 0}
    .contact-info span{padding:11px 0;border-bottom:1px solid rgba(255,255,255,.16)}
    .form{background:#fff;border:1px solid var(--line);padding:28px;border-radius:14px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .field{display:grid;gap:6px}
    .field.full{grid-column:1/-1}
    label{font-size:14px;font-weight:800}
    input,select,textarea{font:inherit;border:1px solid #d8d2c0;border-radius:7px;padding:12px 13px;background:#fffdf8;color:var(--ink);outline:0}
    input:focus,select:focus,textarea:focus{border-color:var(--yellow2);box-shadow:0 0 0 3px rgba(255,210,31,.2)}
    textarea{min-height:125px;resize:vertical}
    .form .button{justify-self:start}
    .footer{background:#111820;color:#e9eef1;padding:46px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:36px}
    .footer h3{color:var(--yellow);font-size:17px}
    .footer p,.footer a{color:#bdc8d1;font-size:14px}
    .footer a:hover{color:#fff}
    .links{display:flex;flex-wrap:wrap;gap:8px 18px}
    .copyright{border-top:1px solid #2a3640;margin-top:30px;padding-top:16px;color:#8d9ba5;font-size:13px;display:flex;justify-content:space-between;gap:15px}
    .float{position:fixed;right:18px;bottom:18px;z-index:15;display:flex;flex-direction:column;gap:8px}
    .float a{background:var(--yellow);color:#171717;padding:10px 13px;border-radius:8px;font-size:13px;font-weight:800;box-shadow:0 5px 15px rgba(0,0,0,.15)}
    .qr{width:120px;background:#fff;padding:7px;border-radius:8px;margin-top:10px}
    .reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}
    .reveal.show{opacity:1;transform:none}
    @media(max-width:1050px){.nav-links{display:none}.menu-toggle{display:block}.nav.open .nav-links{display:grid;position:absolute;top:76px;left:0;right:0;background:var(--paper);padding:12px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}.nav.open .nav-links a{padding:10px 0}.hero-grid,.intro,.contact-grid,.price-grid{grid-template-columns:1fr}.kpis{grid-template-columns:repeat(2,1fr)}.solution-grid{grid-template-columns:repeat(3,1fr)}}
    @media(max-width:700px){.container{width:min(100% - 28px,1180px)}.topbar .container{display:block;text-align:center}.topbar .container span:last-child{display:none}.hero{padding:60px 0}.hero-copy{font-size:16px}.section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:14px}.kpis,.service-grid,.case-grid,.review-grid,.article-grid,.faq,.footer-grid{grid-template-columns:1fr}.solution-grid{grid-template-columns:1fr 1fr}.process{display:grid;grid-template-columns:1fr 1fr;border-top:0}.step{border-right:0;border-top:1px solid var(--line)}.step:nth-child(odd){border-right:1px solid var(--line)}.form{grid-template-columns:1fr;padding:20px}.field.full{grid-column:auto}.copyright{display:block}.copyright span{display:block;margin-top:8px}.float{right:12px;bottom:12px}.float a{font-size:12px;padding:8px 10px}.qr{width:105px}}
    @media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}.button,.service{transition:none}}