:root{--ink:#20251f;--muted:#626a60;--paper:#fffdf5;--yellow:#f6d51d;--lime:#d9ed62;--green:#254f3d;--line:#e5e3d5;--white:#fff}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,"Microsoft YaHei",sans-serif;line-height:1.65}
    a{color:inherit}
    img{max-width:100%;height:auto}
    .container{width:min(1160px,calc(100% - 40px));margin-inline:auto}
    header{position:sticky;top:0;z-index:20;background:rgba(255,253,245,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
    .nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;white-space:nowrap}
    .brand img{width:42px;max-height:42px;object-fit:contain}
    .nav-links{display:flex;align-items:center;justify-content:flex-end;gap:0;flex-wrap:wrap}
    .nav-links a{padding:10px 9px;text-decoration:none;font-size:13px;color:#41483e}
    .nav-links a:hover{color:#9a7800}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;background:var(--green);color:#fff;text-decoration:none;border:0;border-radius:4px;font-weight:700;cursor:pointer;transition:transform .2s,background .2s,box-shadow .2s}
    .nav-cta:hover,.button:hover{background:#173a2b;transform:translateY(-2px);box-shadow:0 8px 18px #254f3d2b}
    .menu-toggle{display:none;background:none;border:1px solid var(--line);padding:9px 12px;color:var(--ink);border-radius:4px;font-size:20px}
    .hero{position:relative;overflow:hidden;padding:82px 0 58px;background:linear-gradient(120deg,#fff9d8 0%,#fffdf5 56%,#eaf2d4 100%);border-bottom:1px solid #ece7ca}
    .hero:after{content:"";position:absolute;right:-80px;top:45px;width:310px;height:310px;border:1px solid #bca6004d;border-radius:50%;box-shadow:0 0 0 35px #bca6000c,0 0 0 75px #bca6000a;pointer-events:none}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.2fr .8fr;gap:52px;align-items:center}
    .eyebrow{display:inline-block;color:#635300;font-size:13px;font-weight:800;letter-spacing:1px;text-transform:uppercase}
    h1{max-width:660px;margin:14px 0 18px;font-size:clamp(40px,5vw,66px);line-height:1.12}
    .hero p{max-width:620px;color:#4e564b;font-size:18px;margin:0 0 26px}
    .actions{display:flex;gap:12px;flex-wrap:wrap}
    .button.secondary{background:transparent;color:var(--green);border:1px solid var(--green)}
    .button.secondary:hover{background:#eaf2d4}
    .hero-note{font-size:13px!important;margin-top:18px!important;color:#687064!important}
    .hero-panel{padding:26px;background:#fff;border:1px solid #e4dfc2;border-top:5px solid var(--yellow);box-shadow:12px 12px 0 #254f3d12}
    .hero-panel h2{font-size:18px;margin:0 0 16px}
    .model-cloud{display:flex;flex-wrap:wrap;gap:8px}
    .model-cloud span,.tag{display:inline-block;padding:6px 10px;background:#f4f3e9;border:1px solid #e9e6d6;color:#41483e;font-size:12px}
    .hero-panel p{font-size:14px;margin:16px 0 0}
    .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding:24px 0;border-bottom:1px solid var(--line)}
    .metric{padding:8px 22px;border-right:1px solid var(--line)}
    .metric:last-child{border:0}
    .metric strong{display:block;font-size:21px;color:var(--green)}
    .metric span{font-size:13px;color:var(--muted)}
    main section{padding:68px 0;border-bottom:1px solid var(--line)}
    .section-head{max-width:720px;margin-bottom:30px}
    .section-head h2{font-size:34px;line-height:1.2;margin:8px 0 12px}
    .section-head p{color:var(--muted);margin:0}
    .intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
    .intro-copy{font-size:17px;color:#424a40}
    .intro-list{display:grid;grid-template-columns:1fr 1fr;gap:0 24px;margin:0;padding:0;list-style:none}
    .intro-list li{padding:13px 0;border-bottom:1px solid var(--line);font-weight:700}
    .intro-list li:before{content:"✓";color:#758b21;margin-right:10px}
    .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
    .service{background:#fff;padding:23px;transition:background .2s,transform .2s}
    .service:hover{background:#fffbe3;transform:translateY(-3px)}
    .service .number{font-size:12px;font-weight:800;color:#8a7300}
    .service h3{font-size:18px;margin:7px 0}
    .service p{font-size:14px;color:var(--muted);margin:0}
    .feature-band{background:#254f3d;color:#fff}
    .feature-band .section-head p,.feature-band .eyebrow{color:#e0e8c9}
    .feature-band .section-head h2{color:#fff}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
    .step{padding-top:16px;border-top:2px solid #d9ed62}
    .step:before{counter-increment:step;content:"0" counter(step);display:block;color:#d9ed62;font-weight:800;font-size:13px}
    .step h3{margin:8px 0;color:#fff;font-size:18px}
    .step p{margin:0;color:#e0e8e0;font-size:14px}
    .solution-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .solution{padding:20px 0;border-top:3px solid var(--yellow)}
    .solution h3{margin:0 0 8px;font-size:18px}
    .solution p{margin:0;color:var(--muted);font-size:14px}
    .media-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .media-item{background:#fff;border:1px solid var(--line);padding:12px}
    .media-item img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:contain;background:#f3f1e8}
    .media-item.square img{aspect-ratio:1/1}
    .media-item p{margin:10px 2px 2px;font-size:14px;color:var(--muted)}
    .comparison-wrap{overflow-x:auto;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:720px}
    th,td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}
    th{background:#f4f2e5;font-size:14px}
    td{font-size:14px}
    td:first-child{font-weight:700}
    .rating{display:flex;align-items:center;gap:18px;margin-bottom:20px;padding:18px 22px;background:#fff7c8;border-left:5px solid var(--yellow)}
    .rating strong{font-size:32px;color:#715b00}
    .stars{color:#9b7a00;letter-spacing:2px}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .review{padding:20px 0;border-top:1px solid #bfc8b9}
    .review blockquote{margin:0 0 14px;color:#41483e}
    .review cite{font-size:13px;font-style:normal;font-weight:700;color:var(--green)}
    .faq-list{max-width:900px}
    details{border-bottom:1px solid var(--line);padding:16px 0}
    summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:16px}
    summary:after{content:"+";font-size:20px;color:#756000}
    details[open] summary:after{content:"−"}
    details p{margin:12px 26px 0 0;color:var(--muted)}
    .articles{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
    .article-link{display:block;padding:16px;background:#fff;border:1px solid var(--line);text-decoration:none;font-weight:700;font-size:14px}
    .article-link span{display:block;margin-top:6px;color:var(--muted);font-weight:400;font-size:12px}
    .contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:46px;align-items:start}
    .contact-info p{color:var(--muted)}
    .contact-lines{padding:0;list-style:none}
    .contact-lines li{padding:8px 0;border-bottom:1px solid var(--line)}
    form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    label{display:block;font-size:13px;font-weight:700}
    input,select,textarea{width:100%;margin-top:6px;padding:12px;border:1px solid #d6d8cb;border-radius:3px;background:#fff;color:var(--ink);font:inherit}
    textarea{min-height:120px;resize:vertical}
    .field-full{grid-column:1/-1}
    .form-note{font-size:12px;color:var(--muted);margin:0}
    .qr{width:150px;border:1px solid var(--line);padding:5px;background:#fff}
    .links{display:flex;flex-wrap:wrap;gap:10px 18px}
    .links a{font-size:13px;color:#344b3a}
    footer{background:#f1efdf;color:#263128;padding:24px 0}
    .footer-row{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
    .footer-row p{margin:0;font-size:13px}
    .top-button{position:fixed;right:18px;bottom:18px;z-index:10;border:0;background:var(--green);color:#fff;width:44px;height:44px;border-radius:50%;font-size:20px;cursor:pointer;box-shadow:0 4px 14px #20251f33}
    .reveal{opacity:0;transform:translateY(14px);transition:opacity .55s,transform .55s}
    .reveal.visible{opacity:1;transform:none}
    @media(max-width:900px){
      .nav{flex-wrap:wrap;padding:12px 0}
      .menu-toggle{display:block}
      .nav-actions{display:flex;align-items:center;gap:10px}
      .nav-links{display:none;order:3;width:100%;justify-content:flex-start;padding:8px 0}
      .nav-links.open{display:flex}
      .hero-grid{grid-template-columns:1fr;gap:30px}
      .hero:after{right:-170px}
      .service-grid{grid-template-columns:repeat(2,1fr)}
      .articles{grid-template-columns:repeat(3,1fr)}
    }
    @media(max-width:620px){
      .container{width:min(100% - 30px,1160px)}
      .hero{padding:58px 0 38px}
      h1{font-size:42px}
      .hero p{font-size:16px}
      main section{padding:48px 0}
      .metrics{grid-template-columns:1fr 1fr}
      .metric{padding:12px;border-right:0;border-bottom:1px solid var(--line)}
      .section-head h2{font-size:28px}
      .intro-grid,.contact-grid{grid-template-columns:1fr;gap:24px}
      .intro-list{grid-template-columns:1fr}
      .service-grid,.solution-list,.reviews{grid-template-columns:1fr}
      .workflow{grid-template-columns:1fr 1fr;gap:20px}
      .media-grid{grid-template-columns:1fr}
      .articles{grid-template-columns:1fr 1fr}
      form{grid-template-columns:1fr}
      .field-full{grid-column:auto}
      .nav-links a{padding:8px}
    }
    @media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}