:root{--ink:#17202e;--muted:#566273;--line:#dce2eb;--paper:#f7f8fc;--white:#fff;--blue:#2457e6;--cyan:#00a9c7;--pink:#ef4b79;--lime:#b7dd45;--orange:#ff9a3c;--navy:#15243d;--container:1160px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:86px}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.65}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    .container{width:min(var(--container),calc(100% - 40px));margin-inline:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
    .nav-row{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;font-weight:800;font-size:18px}
    .brand img{width:38px;height:38px;object-fit:contain}
    .nav-links{display:flex;align-items:center;justify-content:flex-end;gap:0;flex-wrap:wrap}
    .nav-links a{padding:9px 10px;color:#394558;font-size:13px;white-space:nowrap}
    .nav-links a:hover,.nav-links a:focus-visible{color:var(--blue)}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:4px;background:var(--blue);color:#fff;font-weight:700;padding:12px 18px;transition:transform .2s,background .2s,box-shadow .2s;cursor:pointer}
    .nav-cta{white-space:nowrap;padding:10px 15px;font-size:13px}
    .nav-cta:hover,.button:hover{background:#153fc2;transform:translateY(-2px);box-shadow:0 8px 22px #2457e633}
    .menu-toggle{display:none;border:1px solid var(--line);background:white;color:var(--ink);width:42px;height:42px;border-radius:4px;font-size:20px}
    .hero{position:relative;overflow:hidden;background:#14233b;color:#fff;padding:70px 0 54px}
    .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(112deg,transparent 0 54%,rgba(36,87,230,.28) 54% 68%,transparent 68%),linear-gradient(145deg,transparent 0 72%,rgba(0,169,199,.23) 72% 84%,transparent 84%)}
    .hero:after{content:"";position:absolute;right:8%;top:13%;width:180px;aspect-ratio:1;border:1px solid #ffffff27;transform:rotate(45deg);box-shadow:0 0 0 24px #ffffff08,0 0 0 48px #ffffff05}
    .hero-inner{position:relative;z-index:1;max-width:850px}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:#b8e8f2;font-size:13px;font-weight:700}
    .eyebrow:before{content:"";width:26px;height:2px;background:var(--lime)}
    h1{max-width:760px;margin:15px 0 16px;font-size:clamp(38px,6vw,68px);line-height:1.08;color:white}
    .hero p{max-width:690px;color:#d4deed;font-size:17px;margin:0}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:27px}
    .button-light{background:var(--lime);color:#17202e}
    .button-light:hover{background:#c8ed5d}
    .button-outline{background:transparent;border:1px solid #8796ad;color:white}
    .hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:30px}
    .hero-tags span{font-size:12px;color:#e4ecf7;border:1px solid #ffffff33;padding:5px 10px;border-radius:2px}
    .hero-strip{position:relative;z-index:1;border-top:1px solid #ffffff24;margin-top:48px;padding-top:20px;display:flex;flex-wrap:wrap;gap:14px 30px;color:#e2e9f4;font-size:13px}
    .hero-strip strong{color:#fff}
    .section{padding:68px 0}
    .section-head{max-width:760px;margin-bottom:28px}
    .kicker{color:#c53c67;font-size:12px;font-weight:800;letter-spacing:1px;text-transform:uppercase}
    h2{font-size:clamp(27px,4vw,40px);line-height:1.2;margin:8px 0 12px}
    .section-head p,.lead{color:var(--muted);margin:0}
    .intro-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:start}
    .intro-copy p{color:var(--muted);margin:0 0 15px}
    .intro-note{border-left:3px solid var(--cyan);padding:4px 0 4px 18px;font-weight:650}
    .metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
    .metric{background:#fff;padding:20px}
    .metric strong{display:block;font-size:28px;color:var(--blue);line-height:1.2}
    .metric span{font-size:13px;color:var(--muted)}
    .service-band{background:#edf1f8;border-block:1px solid #e1e6ef}
    .service-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:#d8dfeb;border:1px solid #d8dfeb}
    .service-item{background:#fff;padding:21px;min-height:150px;transition:transform .2s,box-shadow .2s}
    .service-item:hover{position:relative;z-index:1;transform:translateY(-3px);box-shadow:0 12px 28px #1e355019}
    .service-item .index{color:var(--pink);font-size:12px;font-weight:800}
    .service-item h3{font-size:17px;margin:6px 0}
    .service-item p{font-size:13px;color:var(--muted);margin:0}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:9px;margin-top:25px}
    .tag-cloud span{border:1px solid #cfd7e4;background:#fff;color:#344256;padding:7px 11px;font-size:13px}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .step{padding:22px 20px 22px 0;position:relative}
    .step+.step{padding-left:22px;border-left:1px solid var(--line)}
    .step strong{display:block;color:var(--blue);font-size:13px}
    .step h3{margin:7px 0;font-size:17px}
    .step p{margin:0;color:var(--muted);font-size:13px}
    .industry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .industry{border-top:3px solid var(--cyan);padding:16px 0 0}
    .industry:nth-child(2){border-color:var(--pink)}
    .industry:nth-child(3){border-color:var(--orange)}
    .industry:nth-child(4){border-color:var(--blue)}
    .industry h3{margin:0 0 7px;font-size:16px}
    .industry p{margin:0;color:var(--muted);font-size:13px}
    .network{background:var(--navy);color:white}
    .network h2{color:white}
    .network .section-head p{color:#ced8e7}
    .network-layout{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
    .network-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 24px}
    .network-list span{padding:10px 0;border-bottom:1px solid #ffffff24;color:#e4ebf5;font-size:14px}
    .network-aside{border-left:2px solid var(--lime);padding:6px 0 6px 20px;color:#d4deec}
    .network-aside strong{display:block;color:#fff;font-size:19px;margin-bottom:8px}
    .case-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
    .case{background:#fff;border:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;align-items:center}
    .case .media{padding:16px}
    .case img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:contain;background:#f1f4f8}
    .case .case-copy{padding:18px 18px 18px 0}
    .case h3{font-size:17px;margin:0 0 7px}
    .case p{font-size:13px;color:var(--muted);margin:0}
    .rating-row{display:flex;gap:24px;align-items:center;background:#fff;border-block:1px solid var(--line);padding:20px 22px;margin-bottom:18px}
    .rating-score{font-size:35px;font-weight:850;color:var(--blue);line-height:1}
    .stars{color:#ef9b20;letter-spacing:2px;font-size:19px}
    .rating-row p{margin:3px 0 0;color:var(--muted);font-size:13px}
    .table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line)}
    table{width:100%;border-collapse:collapse;min-width:720px}
    th,td{text-align:left;padding:14px 16px;border-bottom:1px solid #e5e9f0;font-size:13px}
    th{background:#edf2fb;color:#23334d}
    td:first-child{font-weight:700;width:22%}
    tr:last-child td{border-bottom:0}
    .positive{color:#176d54;font-weight:700}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review{background:white;border-top:3px solid var(--pink);padding:18px}
    .review:nth-child(3n+2){border-color:var(--cyan)}
    .review:nth-child(3n){border-color:var(--orange)}
    .review p{margin:0 0 15px;color:#344256;font-size:14px}
    .review strong{font-size:13px}
    .review span{display:block;color:var(--muted);font-size:12px}
    .match-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:42px;align-items:start}
    .match-points{padding:0;margin:18px 0 0;list-style:none}
    .match-points li{padding:9px 0;border-bottom:1px solid var(--line);color:#344256;font-size:14px}
    .match-points li:before{content:"+";color:#159c91;font-weight:800;margin-right:10px}
    .form-panel{background:#fff;border:1px solid var(--line);padding:24px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    .field{display:flex;flex-direction:column;gap:6px}
    .field.full{grid-column:1/-1}
    .field label{font-size:13px;font-weight:700}
    .field input,.field select,.field textarea{width:100%;border:1px solid #cbd4e1;border-radius:3px;background:#fff;padding:11px 12px;color:var(--ink)}
    .field textarea{min-height:112px;resize:vertical}
    .form-panel .button{margin-top:16px}
    .price-layout{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}
    .price-layout p{color:var(--muted);margin:0 0 12px}
    .price-note{background:#e6f5f4;border-left:3px solid #159c91;padding:17px;color:#244b4d;font-size:14px}
    .faq-list{border-top:1px solid var(--line)}
    details{border-bottom:1px solid var(--line);background:#fff}
    summary{cursor:pointer;list-style:none;padding:16px 40px 16px 14px;font-weight:700;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:14px;top:13px;font-size:20px;color:var(--blue)}
    details[open] summary:after{content:"−"}
    details p{margin:0;padding:0 14px 16px;color:var(--muted);font-size:14px}
    .article-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
    .article-link{background:#fff;border:1px solid var(--line);padding:15px;min-height:94px;display:flex;align-items:flex-end;font-weight:700;font-size:14px;transition:border-color .2s,transform .2s}
    .article-link:hover{border-color:var(--blue);transform:translateY(-2px)}
    .article-link span{display:block;color:var(--pink);font-size:11px;margin-bottom:5px}
    .knowledge{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
    .knowledge article{border-top:1px solid var(--line);padding-top:14px}
    .knowledge h3{margin:0 0 7px;font-size:16px}
    .knowledge p{margin:0;color:var(--muted);font-size:13px}
    .join-band{background:#e8efff;border-block:1px solid #d8e2fb}
    .join-layout{display:flex;justify-content:space-between;align-items:center;gap:25px}
    .join-layout h2{font-size:29px;margin:0 0 7px}
    .join-layout p{margin:0;color:var(--muted);max-width:650px}
    .contact-row{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
    .contact-details{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .contact-details div{border-top:1px solid var(--line);padding:11px 0}
    .contact-details strong{display:block;font-size:12px;color:var(--muted)}
    .contact-details a,.contact-details span{font-weight:700}
    .qr{width:138px;height:auto;display:block;margin-top:16px;border:1px solid var(--line);padding:5px;background:#fff}
    .site-footer{background:#eef1f6;border-top:1px solid #dce2eb;color:#263448;padding:27px 0}
    .footer-top{display:flex;align-items:flex-start;justify-content:space-between;gap:26px}
    .footer-links{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px}
    .footer-links a:hover{color:var(--blue)}
    .copyright{margin-top:17px;padding-top:13px;border-top:1px solid #d4dbe6;color:#596577;font-size:12px}
    .float-tools{position:fixed;right:16px;bottom:22px;z-index:15;display:grid;gap:8px}
    .float-tools a,.float-tools button{width:46px;height:46px;border:1px solid #d7deea;background:#fff;color:#23334d;display:grid;place-items:center;box-shadow:0 5px 16px #17202e19;border-radius:3px;font-size:18px;cursor:pointer}
    .float-tools a:hover,.float-tools button:hover{background:var(--blue);color:white}
    .reveal{opacity:0;transform:translateY(14px);transition:opacity .55s ease,transform .55s ease}
    .reveal.visible{opacity:1;transform:translateY(0)}
    @media (prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}.reveal{opacity:1;transform:none}}
    @media(max-width:980px){
      .nav-row{flex-wrap:wrap;padding:12px 0}
      .menu-toggle{display:block;margin-left:auto}
      .nav-links{display:none;order:3;width:100%;justify-content:flex-start;border-top:1px solid var(--line);padding-top:8px}
      .nav-links.open{display:flex}
      .nav-cta{order:2}
      .service-grid{grid-template-columns:repeat(2,1fr)}
      .industry-grid{grid-template-columns:repeat(2,1fr)}
      .article-grid{grid-template-columns:repeat(3,1fr)}
    }
    @media(max-width:680px){
      .container{width:min(var(--container),calc(100% - 30px))}
      .nav-row{gap:10px}.brand{font-size:16px}.brand img{width:32px;height:32px}
      .nav-cta{font-size:12px;padding:9px 10px}
      .nav-links{display:none;flex-direction:column;align-items:stretch;gap:0}
      .nav-links.open{display:flex}
      .nav-links a{border-bottom:1px solid #edf0f4;padding:9px 2px}
      .hero{padding:54px 0 36px}.hero:after{right:-60px;top:20%;width:135px}
      .hero p{font-size:15px}.hero-strip{margin-top:35px;gap:9px 18px}
      .section{padding:49px 0}
      .intro-layout,.network-layout,.case-grid,.match-layout,.price-layout,.contact-row{grid-template-columns:1fr;gap:24px}
      .service-grid{grid-template-columns:1fr}
      .service-item{min-height:0}
      .workflow{grid-template-columns:1fr 1fr}
      .step{padding:17px 12px 17px 0}
      .step+.step{padding-left:14px}
      .step:nth-child(3){border-left:0;padding-left:0;border-top:1px solid var(--line)}
      .step:nth-child(4){border-top:1px solid var(--line)}
      .industry-grid{grid-template-columns:1fr 1fr;gap:17px}
      .network-list{gap:0 14px}
      .case{grid-template-columns:1fr 1fr}
      .case .media{padding:10px}.case .case-copy{padding:12px 10px 12px 0}
      .reviews{grid-template-columns:1fr}
      .article-grid{grid-template-columns:1fr 1fr}
      .knowledge{grid-template-columns:1fr}
      .join-layout{align-items:flex-start;flex-direction:column}
      .form-panel{padding:17px}
      .footer-top{flex-direction:column}
      .float-tools{right:10px;bottom:12px}
    }
    @media(max-width:420px){
      .nav-cta{max-width:120px;white-space:normal;line-height:1.25}
      .hero-actions .button{width:100%}
      .form-grid{grid-template-columns:1fr}
      .field.full{grid-column:auto}
      .case{grid-template-columns:1fr}
      .case .case-copy{padding:0 14px 16px}
      .rating-row{gap:14px;padding:17px 12px}
      .rating-score{font-size:30px}
    }