:root{--ink:#17252c;--muted:#59686c;--paper:#fffdf8;--line:#e7e3d9;--coral:#f35c45;--lime:#d7f16a;--blue:#c8e9ed;--navy:#12353b;--white:#fff}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,"Noto Sans SC","Microsoft YaHei",sans-serif;line-height:1.65}
    a{color:inherit}
    button,input,select,textarea{font:inherit}
    img{max-width:100%;height:auto}
    .container{width:min(1160px,calc(100% - 40px));margin-inline:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,248,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
    .nav-row{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:800;white-space:nowrap}
    .brand img{width:42px;height:auto}
    .nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap}
    .nav-links a{padding:10px 12px;text-decoration:none;color:#35464b;font-size:14px}
    .nav-links a:hover{color:var(--coral)}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:4px;padding:12px 18px;background:var(--coral);color:#fff;text-decoration:none;font-weight:750;cursor:pointer;transition:transform .2s,background .2s}
    .nav-cta:hover,.button:hover{background:#d94733;transform:translateY(-2px)}
    .menu-toggle{display:none;border:1px solid var(--line);background:var(--paper);padding:8px 12px;color:var(--ink);cursor:pointer}
    main section{padding:76px 0;scroll-margin-top:82px}
    .hero{position:relative;overflow:hidden;padding:88px 0 64px;background:var(--lime)}
    .hero:after{content:"";position:absolute;right:-110px;top:-145px;width:420px;aspect-ratio:1;border:70px solid rgba(243,92,69,.2);border-radius:50%;pointer-events:none}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(260px,.75fr);align-items:center;gap:56px}
    .eyebrow{margin:0 0 16px;color:#344a2e;font-size:13px;font-weight:800;text-transform:uppercase}
    h1{max-width:720px;margin:0;font-size:clamp(42px,6vw,72px);line-height:1.1}
    .hero-copy{max-width:650px;margin:22px 0 26px;color:#35433a;font-size:18px}
    .hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
    .button.dark{background:var(--navy)}
    .button.dark:hover{background:#234e55}
    .text-link{font-weight:700;text-decoration-thickness:1px;text-underline-offset:4px}
    .hero-note{margin:20px 0 0;color:#475540;font-size:13px}
    .hero-panel{position:relative;padding:26px 24px;background:var(--navy);color:white;border-radius:4px;box-shadow:10px 10px 0 var(--coral)}
    .hero-panel h2{margin:0 0 16px;font-size:19px}
    .hero-panel p{margin:0;color:#e2f0e9;font-size:14px}
    .model-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
    .model-tags span{padding:5px 9px;background:#24515a;color:#e8f7ed;border-radius:2px;font-size:12px}
    .metrics{padding:22px 0;background:var(--navy);color:#fff}
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .metric{padding:10px 16px;border-left:2px solid var(--coral)}
    .metric strong{display:block;font-size:22px;color:var(--lime)}
    .metric span{font-size:13px;color:#d5e1df}
    .section-head{max-width:720px;margin-bottom:34px}
    .section-kicker{margin:0 0 8px;color:#d64b37;font-size:13px;font-weight:800}
    h2{margin:0 0 12px;font-size:clamp(28px,4vw,42px);line-height:1.2}
    .section-head>p:last-child{margin:0;color:var(--muted)}
    .intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:start}
    .intro-lead{padding-left:20px;border-left:4px solid var(--coral);font-size:19px}
    .intro-points{display:grid;grid-template-columns:1fr 1fr;gap:18px 24px}
    .intro-points div{padding:0 0 14px;border-bottom:1px solid var(--line)}
    .intro-points strong{display:block;margin-bottom:4px}
    .intro-points span{color:var(--muted);font-size:14px}
    .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
    .service{min-height:150px;padding:22px;background:var(--paper);transition:background .2s,transform .2s}
    .service:hover{position:relative;background:#fff7ef;transform:translateY(-3px)}
    .service h3{margin:0 0 8px;font-size:18px}
    .service p{margin:0;color:var(--muted);font-size:14px}
    .service-index{display:block;margin-bottom:14px;color:#df523e;font-size:12px;font-weight:800}
    .band{background:#f4f0e8}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
    .workflow article{padding-top:18px;border-top:2px solid var(--navy);counter-increment:step}
    .workflow article:before{content:"0" counter(step);display:block;margin-bottom:12px;color:var(--coral);font-weight:800;font-size:14px}
    .workflow h3{margin:0 0 6px;font-size:18px}
    .workflow p{margin:0;color:var(--muted);font-size:14px}
    .solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
    .solution{padding:22px 0;border-top:4px solid var(--coral)}
    .solution:nth-child(2){border-color:#52a9a0}
    .solution:nth-child(3){border-color:#90ad28}
    .solution h3{margin:0 0 8px}
    .solution p{margin:0;color:var(--muted);font-size:14px}
    .comparison-wrap{overflow-x:auto;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:720px;text-align:left}
    th,td{padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}
    th{background:#f4f0e8;font-size:14px}
    td{font-size:14px}
    .rating{display:flex;align-items:center;gap:16px;margin-bottom:24px}
    .rating strong{font-size:34px;color:var(--coral)}
    .rating span{font-weight:800;color:#52631c}
    .case-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
    .case{padding:0 0 20px;border-bottom:1px solid var(--line)}
    .case img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;margin-bottom:16px;background:#eee}
    .case h3{margin:0 0 6px}
    .case p{margin:0;color:var(--muted);font-size:14px}
    .case.square img{aspect-ratio:1}
    .feedback-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .feedback{padding:20px;background:#fff;border:1px solid var(--line);border-top:3px solid var(--blue)}
    .feedback blockquote{margin:0 0 16px;font-size:15px}
    .feedback p{margin:0;color:var(--muted);font-size:13px}
    .feedback small{display:block;margin-top:4px;color:#8a9695}
    .faq-list{max-width:900px}
    details{border-top:1px solid var(--line);padding:17px 0}
    details:last-child{border-bottom:1px solid var(--line)}
    summary{cursor:pointer;font-weight:750}
    details p{margin:10px 0 0;color:var(--muted)}
    .article-list{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
    .article-list a{display:flex;min-height:112px;align-items:flex-end;padding:16px;background:#e8f2ee;text-decoration:none;font-weight:750;transition:background .2s}
    .article-list a:nth-child(even){background:#ffe5d9}
    .article-list a:hover{background:var(--lime)}
    .model-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .model-cloud span{padding:8px 12px;border:1px solid #cdd8d4;background:#fff;font-size:14px}
    .contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:start}
    .contact-details{display:grid;gap:12px;margin:20px 0}
    .contact-details a{color:var(--navy);font-weight:700}
    .qr-wrap{width:min(180px,100%);padding:8px;background:#fff;border:1px solid var(--line)}
    .qr-wrap img{display:block;width:100%}
    form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    form label{display:grid;gap:6px;font-size:14px;font-weight:700}
    form label.full,form button{grid-column:1/-1}
    input,select,textarea{width:100%;padding:11px 12px;border:1px solid #cbd3d0;border-radius:2px;background:#fff;color:var(--ink)}
    textarea{min-height:112px;resize:vertical}
    input:focus,select:focus,textarea:focus{outline:2px solid #83b4ae;outline-offset:1px}
    .footer{padding:30px 0;background:#e9eee8;color:#213238}
    .footer-top{display:flex;justify-content:space-between;align-items:flex-start;gap:24px}
    .footer p{margin:4px 0;color:#495a5c;font-size:13px}
    .footer-links{display:flex;flex-wrap:wrap;gap:8px 18px}
    .footer-links a{font-size:13px;color:#28474d}
    .copyright{margin-top:20px!important;padding-top:14px;border-top:1px solid #ccd6d0}
    .floating{position:fixed;right:16px;bottom:18px;z-index:15;display:grid;gap:8px}
    .floating a{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--navy);color:#fff;text-decoration:none;font-size:12px;font-weight:750;box-shadow:0 4px 14px #17252c30}
    .reveal{opacity:0;transform:translateY(14px);transition:opacity .55s,transform .55s}
    .reveal.visible{opacity:1;transform:none}
    @media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}.reveal{opacity:1;transform:none}}
    @media(max-width:900px){
      .menu-toggle{display:block}
      .nav-row{position:relative;flex-wrap:wrap;padding:12px 0}
      .nav-links{display:none;order:3;width:100%;padding:8px 0 4px;grid-template-columns:repeat(2,1fr)}
      .nav-links.open{display:grid}
      .nav-links a{padding:9px 6px}
      .nav-cta{margin-left:auto;padding:10px 12px;font-size:13px}
      .hero-grid{grid-template-columns:1fr;gap:30px}
      .hero-panel{max-width:560px}
      .metric-grid{grid-template-columns:repeat(2,1fr)}
      .service-grid{grid-template-columns:repeat(2,1fr)}
      .article-list{grid-template-columns:repeat(3,1fr)}
    }
    @media(max-width:620px){
      .container{width:min(100% - 28px,1160px)}
      main section{padding:56px 0}
      .hero{padding:62px 0 44px}
      .hero:after{right:-230px}
      .hero-copy{font-size:16px}
      .metric-grid,.intro-grid,.intro-points,.service-grid,.workflow,.solution-grid,.case-grid,.feedback-grid,.contact-grid{grid-template-columns:1fr}
      .metric{padding:7px 12px}
      .article-list{grid-template-columns:repeat(2,1fr)}
      .footer-top{flex-direction:column}
      form{grid-template-columns:1fr}
      form label.full,form button{grid-column:auto}
      .floating{right:10px;bottom:12px}
    }