:root{--ink:#182333;--muted:#5c6878;--paper:#f7f9fc;--white:#fff;--line:#dfe5ee;--blue:#315ee8;--cyan:#11b8c5;--pink:#e54f9a;--lime:#d9ef62;--radius:12px;--container:1160px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:84px}
    body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button,a{ -webkit-tap-highlight-color:transparent}
    .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,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
    .nav{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:10px;flex:none;font-weight:800}
    .brand img{display:block;width:40px;height:auto}
    .nav-links{display:flex;align-items:center;justify-content:flex-end;gap:0;flex-wrap:wrap}
    .nav-links a{padding:8px 9px;color:#465365;font-size:13px;white-space:nowrap}
    .nav-links a:hover{color:var(--blue)}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 17px;border:0;border-radius:7px;background:var(--blue);color:#fff;font-weight:700;transition:transform .2s,background .2s,box-shadow .2s}
    .nav-cta:hover,.button:hover{background:#244bd0;box-shadow:0 8px 22px #315ee833;transform:translateY(-2px)}
    .menu-toggle{display:none;width:42px;height:40px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink);font-size:20px}
    .hero{position:relative;overflow:hidden;background:#f1f5ff;border-bottom:1px solid #d9e2fb}
    .hero::before{position:absolute;inset:0;content:"";background:linear-gradient(120deg,transparent 54%,rgba(49,94,232,.08) 54%,transparent 74%),linear-gradient(0deg,transparent 96%,rgba(17,184,197,.18) 96%);background-size:auto,100% 44px;pointer-events:none}
    .hero-inner{position:relative;padding:76px 0 54px}
    .hero-copy{max-width:760px}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:#3152b9;font-size:13px;font-weight:800;letter-spacing:0}
    .eyebrow::before{width:25px;height:3px;background:var(--cyan);content:""}
    h1{max-width:700px;margin:17px 0 16px;font-size:clamp(38px,6vw,66px);line-height:1.12;letter-spacing:0}
    .hero p{max-width:640px;margin:0;color:#4e5c70;font-size:18px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
    .button.secondary{background:#fff;color:var(--ink);border:1px solid #cbd5e5}
    .button.secondary:hover{background:#f7f9ff}
    .hero-meta{display:flex;gap:22px;flex-wrap:wrap;margin-top:35px;color:#536176;font-size:13px}
    .hero-meta strong{color:var(--ink)}
    .signal{position:absolute;right:3%;top:68px;width:210px;height:210px;border:1px solid #9aaceb;border-radius:50%;opacity:.7}
    .signal::before,.signal::after{position:absolute;inset:26px;border:1px solid #7c9bea;border-radius:50%;content:""}
    .signal::after{inset:57px;border-color:#53bcc2}
    .signal-mark{position:absolute;right:91px;top:153px;width:12px;height:12px;border:3px solid #fff;border-radius:50%;background:var(--pink);box-shadow:0 0 0 6px #e54f9a22}
    .section{padding:68px 0}
    .section.tinted{background:#eef3f9}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}
    .section-head h2{margin:0;font-size:32px;line-height:1.2;letter-spacing:0}
    .section-head p{max-width:570px;margin:9px 0 0;color:var(--muted)}
    .kicker{margin:0 0 8px;color:#4261d1;font-size:12px;font-weight:800}
    .stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:#fff}
    .stat{padding:22px 24px;border-right:1px solid var(--line)}
    .stat:last-child{border:0}
    .stat strong{display:block;font-size:24px;line-height:1.2}
    .stat span{display:block;margin-top:7px;color:var(--muted);font-size:13px}
    .intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:42px;align-items:start}
    .intro-copy p{color:#4d5a6c}
    .feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 22px;margin:22px 0 0;padding:0;list-style:none}
    .feature-list li{padding:12px 0;border-top:1px solid var(--line);font-weight:650}
    .feature-list li::before{content:"+";margin-right:9px;color:var(--cyan);font-weight:900}
    .platform-panel{padding:22px;background:#172438;color:#fff}
    .platform-panel h3{margin:0 0 14px;font-size:18px}
    .platform-panel p{margin:0;color:#c6d0df;font-size:14px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
    .tag-cloud span{padding:5px 9px;border:1px solid #526175;border-radius:4px;color:#e5edf8;font-size:12px}
    .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .service{padding:20px;background:#fff;border:1px solid var(--line);border-top:3px solid var(--cyan);transition:transform .2s,box-shadow .2s}
    .service:nth-child(3n+2){border-top-color:var(--pink)}
    .service:nth-child(3n){border-top-color:var(--blue)}
    .service:hover{transform:translateY(-3px);box-shadow:0 12px 26px #20324a12}
    .service h3{margin:0 0 8px;font-size:17px}
    .service p{margin:0;color:var(--muted);font-size:14px}
    .service-index{margin-bottom:12px;color:#6f7d90;font-size:11px;font-weight:800}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid #cdd6e2;border-bottom:1px solid #cdd6e2}
    .step{position:relative;padding:23px 20px 23px 0}
    .step:not(:last-child)::after{position:absolute;right:12px;top:33px;width:20px;height:1px;background:var(--cyan);content:""}
    .step b{display:block;margin-bottom:8px;color:#315ee8;font-size:13px}
    .step h3{margin:0 0 7px;font-size:17px}
    .step p{margin:0;color:var(--muted);font-size:14px}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
    .solution-list{margin:0;padding:0;list-style:none}
    .solution-list li{padding:14px 0;border-bottom:1px solid var(--line)}
    .solution-list strong{display:block;margin-bottom:3px}
    .solution-list span{color:var(--muted);font-size:14px}
    .plain-link{color:var(--blue);font-weight:700}
    .rating-panel{padding:24px;background:#172438;color:#fff}
    .rating-panel h3{margin:0 0 8px;font-size:20px}
    .rating{color:#d9ef62;font-size:27px;font-weight:800}
    .rating small{color:#dce4ee;font-size:14px;font-weight:500}
    .table-wrap{overflow-x:auto;margin-top:20px}
    table{width:100%;border-collapse:collapse;background:#fff;color:var(--ink);font-size:14px}
    th,td{padding:12px 14px;border:1px solid #526175;text-align:left}
    th{background:#24344b;color:#fff}
    td:first-child{font-weight:700}
    .score{color:#196d73;font-weight:750}
    .cases{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .case{background:#fff;border:1px solid var(--line)}
    .case img{display:block;width:100%;height:auto;aspect-ratio:16/8;object-fit:cover;background:#edf1f6}
    .case-body{padding:16px 18px}
    .case-body h3{margin:0 0 5px;font-size:17px}
    .case-body p{margin:0;color:var(--muted);font-size:14px}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .review{padding:19px;background:#fff;border:1px solid var(--line)}
    .review p{margin:0 0 16px;color:#455365;font-size:14px}
    .review strong{font-size:13px}
    .review span{display:block;color:#758194;font-size:12px}
    .news-list{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
    .news-list a{min-height:90px;padding:14px;background:#fff;border:1px solid var(--line);font-weight:700;font-size:14px;transition:border-color .2s,color .2s}
    .news-list a:hover{border-color:var(--blue);color:var(--blue)}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item summary{position:relative;padding:17px 36px 17px 0;cursor:pointer;font-weight:700;list-style:none}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{position:absolute;right:3px;content:"+";color:var(--blue);font-size:22px;line-height:1}
    .faq-item[open] summary::after{content:"−"}
    .faq-item p{max-width:850px;margin:0;padding:0 30px 17px 0;color:var(--muted);font-size:14px}
    .contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:38px;align-items:start}
    .contact-details p{color:var(--muted)}
    .contact-details a{color:var(--blue);font-weight:700}
    .contact-form{display:grid;grid-template-columns:1fr 1fr;gap:13px}
    .field{display:grid;gap:6px}
    .field.full{grid-column:1/-1}
    .field label{font-size:13px;font-weight:700}
    .field input,.field select,.field textarea{width:100%;padding:11px 12px;border:1px solid #cbd4e0;border-radius:5px;background:#fff;color:var(--ink)}
    .field textarea{min-height:112px;resize:vertical}
    .contact-form .button{justify-self:start;cursor:pointer}
    .join-band{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:24px 0;border-top:1px solid var(--line)}
    .join-band h3{margin:0;font-size:20px}
    .join-band p{margin:5px 0 0;color:var(--muted);font-size:14px}
    .site-footer{background:#e8edf4;color:#273448;border-top:1px solid #d6deea}
    .footer-main{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:30px;padding:28px 0}
    .footer-main h3{margin:0 0 10px;font-size:15px}
    .footer-main p{margin:4px 0;color:#526074;font-size:13px}
    .footer-links{display:flex;flex-wrap:wrap;gap:7px 13px}
    .footer-links a{color:#425169;font-size:13px}
    .footer-bottom{padding:12px 0;border-top:1px solid #d1d9e4;color:#5e6b7e;font-size:12px}
    .qr{width:104px;height:auto;margin-top:8px;background:#fff;border:4px solid #fff}
    .floating{position:fixed;right:16px;bottom:20px;z-index:15;display:grid;gap:8px}
    .floating a{display:grid;place-items:center;width:46px;height:46px;border-radius:50%;background:var(--blue);color:#fff;font-size:12px;font-weight:800;box-shadow:0 5px 18px #162d5a33}
    .floating a:last-child{background:#172438}
    .reveal{opacity:0;transform:translateY(12px);transition:opacity .55s ease,transform .55s ease}
    .reveal.visible{opacity:1;transform:none}
    @media(max-width:1000px){
      .nav{flex-wrap:wrap;padding:12px 0}
      .menu-toggle{display:block}
      .nav-cta{margin-left:auto}
      .nav-links{display:none;order:4;width:100%;justify-content:flex-start;padding:8px 0 2px;border-top:1px solid var(--line)}
      .nav-links.open{display:flex}
      .nav-links a{padding:8px 10px}
      .signal{right:4%;opacity:.35}
      .news-list{grid-template-columns:repeat(3,1fr)}
    }
    @media(max-width:700px){
      .container{width:min(var(--container),calc(100% - 30px))}
      .hero-inner{padding:58px 0 38px}
      .signal{right:-70px;top:35px;transform:scale(.72)}
      .hero-copy{position:relative;z-index:1}
      .hero p{font-size:16px}
      .section{padding:48px 0}
      .section-head{display:block}
      .section-head h2{font-size:27px}
      .stats{grid-template-columns:1fr 1fr}
      .stat:nth-child(2){border-right:0}
      .stat:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .intro-grid,.split,.contact-grid{grid-template-columns:1fr;gap:24px}
      .service-grid{grid-template-columns:1fr 1fr}
      .workflow{grid-template-columns:1fr 1fr}
      .step{padding:17px 14px 17px 0}
      .step:not(:last-child)::after{display:none}
      .reviews{grid-template-columns:1fr 1fr}
      .cases{grid-template-columns:1fr}
      .news-list{grid-template-columns:1fr 1fr}
      .footer-main{grid-template-columns:1fr 1fr}
      .join-band{align-items:flex-start;flex-direction:column}
    }
    @media(max-width:460px){
      .brand{font-size:14px}
      .brand img{width:34px}
      .nav-cta{padding:9px 11px;font-size:13px}
      .nav-links{max-height:55vh;overflow:auto}
      .hero-actions .button{width:100%}
      .service-grid,.workflow,.reviews,.news-list,.footer-main{grid-template-columns:1fr}
      .feature-list{grid-template-columns:1fr}
      .contact-form{grid-template-columns:1fr}
      .field.full{grid-column:auto}
      .stats .stat{padding:17px}
    }
    @media(prefers-reduced-motion:reduce){
      *,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
      .reveal{opacity:1;transform:none}
    }