:root{--ink:#172522;--muted:#5d6c67;--paper:#f7f9f6;--white:#fff;--green:#c9f26b;--green-dark:#315d27;--line:#dce5dc;--coral:#f17d60;--mint:#eaf3e8;--max:1180px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.65}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    img{max-width:100%;height:auto}
    .container{width:min(var(--max),calc(100% - 40px));margin-inline:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(247,249,246,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
    .nav-row{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;white-space:nowrap}
    .brand img{width:38px;height:38px;object-fit:contain}
    .nav-links{display:flex;align-items:center;gap:0}
    .nav-links a{padding:10px 12px;color:#40514b;font-size:13px;white-space:nowrap}
    .nav-links a:hover{color:var(--green-dark)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .nav-home{font-size:13px;color:var(--muted)}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:6px;padding:12px 18px;background:var(--green);color:#1c2b18;font-weight:750;transition:transform .2s,box-shadow .2s,background .2s}
    .button:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(49,93,39,.16)}
    .button-dark{background:var(--ink);color:#fff}
    .button-outline{border-color:#a9b9ad;background:transparent;color:var(--ink)}
    .menu-toggle{display:none;border:1px solid var(--line);background:var(--white);border-radius:5px;padding:8px 11px;color:var(--ink)}
    .hero{position:relative;overflow:hidden;padding:82px 0 56px;background:#f0f5eb;border-bottom:1px solid var(--line)}
    .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(112deg,transparent 52%,rgba(201,242,107,.19) 52%,rgba(201,242,107,.19) 67%,transparent 67%);pointer-events:none}
    .hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(280px,.7fr);gap:54px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--green-dark);font-size:12px;font-weight:800;letter-spacing:1.2px;text-transform:uppercase}
    .eyebrow:before{content:"";width:22px;height:2px;background:var(--coral)}
    h1{max-width:720px;margin:19px 0 18px;font-size:clamp(38px,6vw,68px);line-height:1.08;letter-spacing:-1.5px}
    .hero-copy{max-width:650px;color:#52615c;font-size:17px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
    .hero-note{margin-top:17px;color:#63716a;font-size:12px}
    .hero-panel{padding:22px 24px;border-left:3px solid var(--coral);background:rgba(255,255,255,.72)}
    .hero-panel h2{margin:0 0 16px;font-size:17px}
    .model-tags{display:flex;flex-wrap:wrap;gap:8px}
    .model-tags span{padding:5px 9px;border:1px solid #dbe5d8;border-radius:3px;background:#fff;font-size:12px;color:#40534b}
    .hero-panel p{margin:16px 0 0;color:var(--muted);font-size:13px}
    .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:44px;border-top:1px solid #d5dfd2}
    .metric{padding:20px 18px 0;border-right:1px solid #d5dfd2}
    .metric:first-child{padding-left:0}
    .metric:last-child{border:0}
    .metric strong{display:block;font-size:21px}
    .metric span{font-size:12px;color:var(--muted)}
    main section{padding:76px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
    .section-head h2{margin:7px 0 0;font-size:clamp(27px,4vw,40px);line-height:1.2}
    .section-head p{max-width:470px;margin:0;color:var(--muted)}
    .intro{display:grid;grid-template-columns:.72fr 1.28fr;gap:48px;align-items:start}
    .intro-lead{font-size:21px;line-height:1.5;font-weight:700}
    .intro-copy{color:var(--muted)}
    .intro-copy p{margin:0 0 14px}
    .capabilities{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
    .capability{padding:24px;background:var(--white);min-height:158px;transition:background .2s}
    .capability:hover{background:#f4f9ed}
    .capability .index{color:#77943c;font-size:12px;font-weight:800}
    .capability h3{margin:12px 0 7px;font-size:18px}
    .capability p{margin:0;color:var(--muted);font-size:13px}
    .platform-band{background:#eaf1e7}
    .platform-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:start}
    .platform-layout h2{margin:7px 0 14px;font-size:36px;line-height:1.2}
    .platform-layout p{color:var(--muted)}
    .platform-points{display:grid;grid-template-columns:repeat(2,1fr);gap:0 28px}
    .platform-point{padding:17px 0;border-top:1px solid #cbd8c8}
    .platform-point strong{display:block;font-size:15px}
    .platform-point span{display:block;margin-top:5px;color:var(--muted);font-size:13px}
    .products{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .product{padding:21px 20px;border:1px solid var(--line);background:var(--white);transition:transform .2s,border-color .2s}
    .product:hover{transform:translateY(-3px);border-color:#91b35a}
    .product h3{margin:0 0 8px;font-size:17px}
    .product p{margin:0;color:var(--muted);font-size:13px}
    .product-tag{display:inline-block;margin-bottom:12px;color:#52702e;font-size:11px;font-weight:800}
    .showcase{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .showcase figure{margin:0;background:#fff;border:1px solid var(--line)}
    .showcase img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}
    .showcase figcaption{padding:14px 17px;font-size:14px;font-weight:700}
    .square-showcase{max-width:380px}
    .square-showcase img{aspect-ratio:1/1}
    .service-network{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
    .network-copy{max-width:520px;color:var(--muted)}
    .network-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 22px}
    .network-list div{padding:14px 0;border-bottom:1px solid var(--line);font-size:14px}
    .network-list strong{display:block;color:var(--ink)}
    .network-list span{color:var(--muted);font-size:12px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #aebcaf}
    .step{padding:22px 20px 0 0}
    .step b{display:block;color:#698b34;font-size:12px}
    .step h3{margin:10px 0 7px;font-size:17px}
    .step p{margin:0;color:var(--muted);font-size:13px}
    .comparison{display:grid;grid-template-columns:.72fr 1.28fr;gap:36px;align-items:start}
    .score{padding:25px;background:var(--ink);color:#fff}
    .score small{color:#d1dfce}
    .score strong{display:block;margin:8px 0;font-size:54px;line-height:1}
    .stars{color:var(--green);letter-spacing:3px}
    .score p{margin:12px 0 0;color:#d1dfce;font-size:13px}
    .table-wrap{overflow-x:auto;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:580px;text-align:left}
    th,td{padding:13px 15px;border-bottom:1px solid var(--line);font-size:13px}
    th{background:#edf3e9;color:#34463b}
    td:last-child{color:var(--green-dark);font-weight:700}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .review{padding:21px;border-top:3px solid var(--green);background:#fff}
    .review p{margin:0 0 19px;color:#43534c;font-size:14px}
    .review strong{display:block;font-size:13px}
    .review span{color:var(--muted);font-size:12px}
    .article-links{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
    .article-links a{display:block;padding:15px 14px;border:1px solid var(--line);background:#fff;font-size:13px;font-weight:700;transition:border-color .2s}
    .article-links a:hover{border-color:#85a94e}
    .article-links span{display:block;margin-top:6px;color:var(--muted);font-size:11px;font-weight:400}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item summary{position:relative;padding:18px 42px 18px 0;cursor:pointer;list-style:none;font-weight:700}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";position:absolute;right:8px;color:var(--green-dark);font-size:22px}
    .faq-item[open] summary:after{content:"−"}
    .faq-item p{max-width:850px;margin:0;padding:0 36px 19px 0;color:var(--muted);font-size:14px}
    .contact{background:#eaf1e7}
    .contact-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start}
    .contact-info h2{margin:7px 0 12px;font-size:36px;line-height:1.2}
    .contact-info p{color:var(--muted)}
    .contact-list{margin-top:24px}
    .contact-list div{padding:10px 0;border-bottom:1px solid #cbd8c8;font-size:14px}
    .contact-form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:flex;flex-direction:column;gap:6px}
    .field.full{grid-column:1/-1}
    .field label{font-size:12px;font-weight:700}
    .field input,.field select,.field textarea{width:100%;border:1px solid #bdcbbd;border-radius:4px;background:#fff;padding:11px 12px;color:var(--ink)}
    .field textarea{min-height:115px;resize:vertical}
    .contact-form button{justify-self:start}
    .footer{padding:30px 0 22px;background:#fff;color:var(--ink);border-top:1px solid var(--line)}
    .footer-top{display:flex;justify-content:space-between;gap:30px;align-items:start}
    .footer-brand{font-weight:800}
    .footer-links{display:flex;flex-wrap:wrap;gap:8px 18px;max-width:700px}
    .footer-links a{color:#4e5e57;font-size:12px}
    .copyright{margin-top:20px;padding-top:14px;border-top:1px solid var(--line);color:#68756f;font-size:11px}
    .floating{position:fixed;right:18px;bottom:20px;z-index:15;display:grid;gap:8px}
    .floating a{display:block;padding:10px 13px;border:1px solid #c8d6c6;border-radius:4px;background:#fff;color:var(--ink);font-size:12px;font-weight:700;box-shadow:0 4px 16px rgba(28,46,35,.1)}
    .floating a:hover{background:var(--green)}
    .reveal{opacity:0;transform:translateY(14px);transition:opacity .55s,transform .55s}
    .reveal.visible{opacity:1;transform:none}
    @media(max-width:980px){
      .nav-links{display:none;position:absolute;left:0;right:0;top:71px;padding:12px 20px 18px;background:var(--paper);border-bottom:1px solid var(--line);flex-wrap:wrap}
      .nav-links.open{display:flex}
      .menu-toggle{display:block}
      .hero-grid{gap:30px}
      .products{grid-template-columns:repeat(2,1fr)}
      .article-links{grid-template-columns:repeat(3,1fr)}
    }
    @media(max-width:680px){
      .container{width:min(var(--max),calc(100% - 30px))}
      .nav-row{min-height:64px;gap:10px}
      .brand{font-size:16px}
      .brand img{width:32px;height:32px}
      .nav-links{top:63px}
      .nav-actions{gap:8px}
      .nav-actions>.button{padding:9px 11px;font-size:12px}
      .nav-home{display:none}
      .hero{padding:56px 0 38px}
      .hero-grid,.intro,.platform-layout,.service-network,.comparison,.contact-layout{grid-template-columns:1fr;gap:27px}
      h1{font-size:42px}
      .hero-copy{font-size:15px}
      .hero-panel{padding:18px}
      .metrics{grid-template-columns:repeat(2,1fr);margin-top:32px}
      .metric{padding:14px 10px;border-bottom:1px solid #d5dfd2}
      .metric:nth-child(2){border-right:0}
      .metric:nth-child(3){padding-left:0}
      main section{padding:54px 0}
      .section-head{align-items:start;flex-direction:column;gap:12px}
      .capabilities{grid-template-columns:1fr 1fr}
      .capability{padding:17px;min-height:0}
      .platform-points{gap:0 16px}
      .products{grid-template-columns:1fr}
      .showcase{grid-template-columns:1fr}
      .square-showcase{max-width:none}
      .steps{grid-template-columns:1fr 1fr;row-gap:15px}
      .reviews{grid-template-columns:1fr}
      .article-links{grid-template-columns:1fr 1fr}
      .contact-form{grid-template-columns:1fr}
      .field.full{grid-column:auto}
      .footer-top{flex-direction:column}
      .floating{right:10px;bottom:10px}
      .floating a{padding:8px 10px}
    }
    @media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}.reveal{opacity:1;transform:none}}