:root{
      --ink:#202329;
      --muted:#68717c;
      --line:#e8e4df;
      --paper:#fffdf9;
      --soft:#fff4ed;
      --orange:#f45b25;
      --orange-dark:#c83e14;
      --gold:#f4a33a;
      --navy:#172735;
      --green:#287a64;
      --shadow:0 18px 45px rgba(43,34,26,.09);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;height:auto}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,249,.94);border-bottom:1px solid rgba(232,228,223,.9);backdrop-filter:blur(14px)}
    .nav-wrap{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--navy);white-space:nowrap}
    .brand-mark{width:28px;height:28px;display:grid;place-items:center;color:#fff;background:var(--orange);border-radius:8px;font-size:15px}
    .nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{padding:8px 8px;font-size:13px;color:#4e5660;transition:color .2s ease}
    .nav-links a:hover{color:var(--orange)}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:7px;padding:12px 19px;background:var(--orange);color:#fff;font-weight:700;cursor:pointer;box-shadow:0 8px 18px rgba(244,91,37,.2);transition:transform .2s ease,box-shadow .2s ease,background .2s ease}
    .nav-cta:hover,.button:hover{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(244,91,37,.28)}
    .menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:8px 11px;font-size:18px;color:var(--navy)}
    .hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#fff7ef 0%,#fffdf9 55%,#f8efe6 100%);padding:82px 0 70px}
    .hero:before,.hero:after{content:"";position:absolute;pointer-events:none}
    .hero:before{width:360px;height:360px;right:-120px;top:-150px;border:1px solid rgba(244,91,37,.2);border-radius:50%}
    .hero:after{width:520px;height:1px;right:5%;bottom:44px;background:linear-gradient(90deg,transparent,rgba(244,91,37,.35),transparent);transform:rotate(-20deg)}
    .hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);gap:70px;align-items:center;position:relative;z-index:1}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--orange-dark);font-size:13px;font-weight:800;letter-spacing:1px}
    .eyebrow:before{content:"";width:28px;height:3px;background:var(--orange);border-radius:3px}
    h1,h2,h3{line-height:1.2;color:var(--navy);margin:0 0 18px}
    h1{font-size:clamp(38px,5vw,70px);letter-spacing:0;margin-top:16px;max-width:660px}
    h2{font-size:clamp(28px,3.3vw,42px)}
    h3{font-size:20px}
    .hero-copy{font-size:18px;color:#505963;max-width:650px;margin:0 0 28px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .button.secondary{background:#fff;color:var(--orange-dark);border:1px solid #f4b391;box-shadow:none}
    .button.secondary:hover{background:#fff3eb}
    .hero-panel{padding:25px;border:1px solid rgba(244,91,37,.22);background:rgba(255,255,255,.65);box-shadow:var(--shadow);border-radius:16px}
    .panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;color:var(--muted);font-size:13px}
    .status{display:inline-flex;align-items:center;gap:6px;color:var(--green);font-weight:700}
    .status:before{content:"";width:8px;height:8px;border-radius:50%;background:#43b28d}
    .model-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin:20px 0}
    .model-flow span{padding:13px 8px;text-align:center;background:#fff8f2;border:1px solid #f5d6c1;border-radius:8px;font-size:13px;font-weight:700}
    .model-flow span:last-child{grid-column:1/-1;background:var(--navy);color:#fff;border-color:var(--navy)}
    .metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}
    .metric{padding-top:14px;border-top:2px solid var(--orange)}
    .metric strong{display:block;font-size:25px;color:var(--orange-dark)}
    .metric small{color:var(--muted)}
    .section{padding:88px 0}
    .section.alt{background:#fff6ee}
    .section.dark{background:var(--navy);color:#eaf0f2}
    .section.dark h2,.section.dark h3{color:#fff}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
    .section-head p{max-width:600px;color:var(--muted);margin:0}
    .dark .section-head p{color:#b9c7cd}
    .kicker{color:var(--orange-dark);font-weight:800;font-size:13px;text-transform:uppercase;letter-spacing:1px;margin-bottom:10px}
    .intro-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:54px;align-items:start}
    .intro-grid p{color:var(--muted);font-size:17px}
    .logo-box{display:flex;align-items:center;gap:20px;padding:22px 0;border-bottom:1px solid var(--line)}
    .logo-box img{width:145px}
    .principles{display:grid;grid-template-columns:repeat(2,1fr);gap:13px;margin-top:22px}
    .principle{padding:17px;background:#fff;border-left:3px solid var(--orange);box-shadow:0 6px 20px rgba(43,34,26,.05)}
    .principle strong{display:block;color:var(--navy);margin-bottom:3px}
    .principle span{font-size:14px;color:var(--muted)}
    .service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .service-card{padding:24px 20px;background:#fff;border:1px solid var(--line);border-radius:10px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
    .service-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#f3b08e}
    .service-icon{width:42px;height:42px;display:grid;place-items:center;background:#fff0e7;color:var(--orange-dark);border-radius:9px;font-weight:900;font-size:18px;margin-bottom:17px}
    .service-card p{font-size:14px;color:var(--muted);margin:0}
    .service-card .tag{display:inline-block;margin-top:14px;color:var(--orange-dark);font-size:12px;font-weight:800}
    .workflow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
    .workflow:before{content:"";position:absolute;top:29px;left:9%;right:9%;height:1px;background:#f3bd9f}
    .step{position:relative;text-align:center;padding:0 12px}
    .step-number{width:58px;height:58px;margin:0 auto 18px;display:grid;place-items:center;border-radius:50%;background:var(--orange);color:#fff;font-size:20px;font-weight:800;border:8px solid #fff1e9;position:relative;z-index:1}
    .step p{font-size:14px;color:var(--muted);margin:0}
    .solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .solution{padding:25px;background:#fff;border:1px solid #f1e5dc}
    .solution h3{font-size:18px}
    .solution p{font-size:14px;color:var(--muted);margin:0}
    .network{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
    .network span,.tag-cloud span{display:inline-flex;padding:8px 12px;background:#fff;border:1px solid #e9d7ca;border-radius:5px;color:#49545d;font-size:13px}
    .dark .network span{background:#203846;border-color:#365361;color:#eaf0f2}
    .compare-wrap{overflow-x:auto;border:1px solid var(--line);background:#fff}
    .compare{width:100%;min-width:760px;border-collapse:collapse}
    .compare th,.compare td{padding:16px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}
    .compare th{background:#fff3eb;color:var(--navy);font-size:13px}
    .compare td:first-child{font-weight:700;color:var(--navy)}
    .compare tr:last-child td{border-bottom:0}
    .rating{display:flex;align-items:center;gap:24px;padding:24px 0 30px}
    .rating strong{font-size:48px;color:var(--orange)}
    .stars{color:#f29a23;font-size:24px;letter-spacing:3px}
    .case-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .case{background:#fff;border:1px solid var(--line);overflow:hidden}
    .case-media{display:grid;grid-template-columns:1fr 1fr;gap:0;background:#f8eee5}
    .case-media img{width:100%;display:block;aspect-ratio:1.7;object-fit:cover}
    .case-content{padding:23px}
    .case-content p{color:var(--muted);font-size:14px;margin:0}
    .case-content .label{color:var(--orange-dark);font-size:12px;font-weight:800;margin-bottom:8px}
    .comments{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
    .comment{padding:23px;background:#fff;border-top:3px solid var(--orange);box-shadow:0 8px 25px rgba(43,34,26,.05)}
    .comment p{font-size:14px;color:#4f5963;margin:0 0 18px}
    .comment footer{font-size:13px;color:var(--orange-dark);font-weight:800}
    .article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .article{padding:22px;background:#fff;border:1px solid var(--line);min-height:180px;display:flex;flex-direction:column;justify-content:space-between}
    .article small{color:var(--orange-dark);font-weight:700}
    .article h3{font-size:18px;margin:12px 0}
    .article a{color:var(--orange-dark);font-size:13px;font-weight:800}
    .faq-list{max-width:900px}
    details{background:#fff;border-bottom:1px solid var(--line);padding:18px 20px}
    details:first-child{border-top:1px solid var(--line)}
    summary{cursor:pointer;list-style:none;font-weight:800;color:var(--navy);padding-right:25px;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:0;color:var(--orange);font-size:23px;top:-5px}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:14px;margin:13px 0 0}
    .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
    .price{padding:25px;background:#fff;border:1px solid var(--line);position:relative}
    .price.featured{border:2px solid var(--orange);padding:24px}
    .price h3{margin-bottom:8px}
    .price .price-note{color:var(--muted);font-size:14px}
    .price ul{padding:0;margin:18px 0 0;list-style:none;color:#56616b;font-size:14px}
    .price li{padding:7px 0;border-bottom:1px dashed #eadfd6}
    .price li:last-child{border-bottom:0}
    .request-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:start}
    .request-note{padding:28px;background:var(--navy);color:#fff}
    .request-note h3{color:#fff}
    .request-note p{color:#c9d3d7;font-size:14px}
    .request-note ul{padding-left:18px;color:#dce5e8;font-size:14px}
    .form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .form .full{grid-column:1/-1}
    label{display:block;font-size:13px;font-weight:800;color:var(--navy);margin-bottom:6px}
    input,select,textarea{width:100%;border:1px solid #ddd6cf;border-radius:5px;padding:12px 13px;background:#fff;color:var(--ink);font:inherit;outline:none}
    input:focus,select:focus,textarea:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(244,91,37,.12)}
    textarea{min-height:125px;resize:vertical}
    .form-note{font-size:12px;color:var(--muted);margin:0}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:9px}
    .footer{background:#172735;color:#eaf0f2;padding:55px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr 1fr;gap:34px}
    .footer h3{color:#fff;font-size:17px;margin-bottom:14px}
    .footer p,.footer li,.footer a{font-size:13px;color:#b9c7cd}
    .footer ul{list-style:none;padding:0;margin:0}
    .footer li{margin:7px 0}
    .footer a:hover{color:#fff}
    .qr{width:115px;margin-top:7px;background:#fff;padding:5px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #304550;margin-top:38px;padding-top:18px;font-size:12px;color:#9fb0b7}
    .float-contact{position:fixed;right:20px;bottom:22px;z-index:15}
    .float-contact a{display:flex;align-items:center;gap:8px;padding:12px 15px;background:var(--orange);color:#fff;border-radius:30px;box-shadow:0 10px 25px rgba(244,91,37,.35);font-size:13px;font-weight:800}
    .reveal{opacity:0;transform:translateY(20px);transition:opacity .65s ease,transform .65s ease}
    .reveal.visible{opacity:1;transform:none}
    @media (max-width:1050px){
      .nav-links a{padding:8px 5px;font-size:12px}
      .service-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:760px){
      .container{width:min(var(--container),calc(100% - 28px))}
      .site-header{position:relative}
      .nav-wrap{min-height:64px}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;left:14px;right:14px;top:64px;padding:10px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);align-items:stretch;flex-direction:column}
      .nav-links.open{display:flex}
      .nav-links a{padding:10px 12px;border-bottom:1px solid #f0ebe6}
      .nav-cta{display:none}
      .hero{padding:58px 0 52px}
      .hero-grid,.intro-grid,.request-grid{grid-template-columns:1fr;gap:32px}
      h1{font-size:42px}
      .section{padding:62px 0}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .principles,.solution-grid,.price-grid,.comments,.article-grid{grid-template-columns:1fr}
      .workflow{grid-template-columns:1fr;gap:22px}
      .workflow:before{top:0;bottom:0;left:29px;width:1px;height:auto}
      .step{display:grid;grid-template-columns:58px 1fr;gap:17px;text-align:left;align-items:center}
      .step-number{margin:0}
      .case-grid{grid-template-columns:1fr}
      .form{grid-template-columns:1fr}
      .form .full{grid-column:auto}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:6px}
    }
    @media (max-width:460px){
      h1{font-size:36px}
      .hero-copy{font-size:16px}
      .metric-row{gap:7px}
      .metric strong{font-size:21px}
      .footer-grid{grid-template-columns:1fr}
      .float-contact{right:12px;bottom:12px}
    }
    @media (prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}
      .reveal{opacity:1;transform:none}
    }