:root{--ink:#17231c;--muted:#59675d;--green:#2e9d53;--green-dark:#176c39;--lime:#d8f36d;--paper:#f5f8f3;--white:#fff;--line:#dce5dc;--blue:#e8f2f5;--coral:#f7e9df;--shadow:0 12px 30px rgba(23,54,32,.08);--wrap:1160px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:90px}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.65}
    a{color:inherit}
    img{max-width:100%;height:auto}
    .container{width:min(var(--wrap),calc(100% - 40px));margin-inline:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(245,248,243,.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:20px}
    .brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;white-space:nowrap}
    .ai-page-logo{display:block;width:38px;height:38px;object-fit:contain}
    .nav-links{display:flex;align-items:center;justify-content:flex-end;gap:0;flex-wrap:wrap}
    .nav-links a{padding:8px 7px;text-decoration:none;color:#405047;font-size:12px;white-space:nowrap}
    .nav-links a:hover,.nav-links a:focus-visible{color:var(--green-dark)}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:5px;padding:11px 17px;background:var(--green-dark);color:#fff;text-decoration:none;font-weight:700;transition:transform .2s,background .2s,box-shadow .2s}
    .nav-cta:hover,.button:hover{background:#105b30;transform:translateY(-2px);box-shadow:0 8px 18px rgba(23,108,57,.2)}
    .menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:5px;background:#fff;color:var(--ink);font-size:20px}
    .hero{position:relative;overflow:hidden;padding:78px 0 56px;background:#eaf4e5;border-bottom:1px solid #d4e3d1}
    .hero:after{content:"";position:absolute;width:350px;height:350px;right:3%;top:-170px;border:1px solid rgba(46,157,83,.22);border-radius:50%;box-shadow:0 0 0 35px rgba(46,157,83,.04),0 0 0 75px rgba(46,157,83,.035);pointer-events:none}
    .hero-inner{position:relative;z-index:1;max-width:820px}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--green-dark);font-weight:800;font-size:13px}
    .eyebrow:before{content:"";width:24px;height:3px;background:var(--green);border-radius:3px}
    h1{max-width:780px;margin:18px 0 16px;font-size:clamp(38px,6vw,66px);line-height:1.12;letter-spacing:0}
    .hero p{max-width:680px;margin:0;color:#435247;font-size:17px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
    .button.secondary{background:#fff;color:var(--green-dark);border:1px solid #b9d1bd}
    .hero-note{margin-top:25px;color:#526458;font-size:13px}
    .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:46px;border-top:1px solid #cadbc9}
    .metric{padding:19px 18px 0 0}
    .metric strong{display:block;font-size:21px;color:var(--green-dark)}
    .metric span{font-size:12px;color:var(--muted)}
    main{overflow:hidden}
    .section{padding:68px 0;border-bottom:1px solid var(--line)}
    .section.white{background:#fff}
    .section.blue{background:var(--blue)}
    .section.green{background:#eaf4e5}
    .section-head{max-width:760px;margin-bottom:28px}
    .section-head h2{margin:7px 0 10px;font-size:clamp(27px,4vw,39px);line-height:1.2}
    .section-head p{margin:0;color:var(--muted)}
    .kicker{color:var(--green-dark);font-size:12px;font-weight:800;text-transform:uppercase}
    .intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:start}
    .intro-copy p{color:#46564b}
    .feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 22px;margin:22px 0 0;padding:0;list-style:none}
    .feature-list li{padding:12px 0;border-top:1px solid var(--line);font-weight:700}
    .feature-list li:before{content:"+";margin-right:10px;color:var(--green);font-weight:900}
    .cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .cap{padding:20px;background:#fff;border:1px solid var(--line);border-top:3px solid var(--green);transition:transform .2s,box-shadow .2s}
    .cap:hover,.review:hover,.case:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .cap h3{margin:4px 0 7px;font-size:17px}
    .cap p{margin:0;color:var(--muted);font-size:14px}
    .num{color:var(--green);font-size:12px;font-weight:800}
    .workflow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;counter-reset:step}
    .step{position:relative;padding:17px 18px 14px 0;border-top:2px solid #a6cda9}
    .step:before{counter-increment:step;content:"0" counter(step);display:block;color:var(--green-dark);font-size:13px;font-weight:900}
    .step h3{margin:7px 0;font-size:16px}
    .step p{margin:0;color:var(--muted);font-size:13px}
    .comparison-wrap{overflow-x:auto;border:1px solid var(--line);background:#fff}
    table{width:100%;min-width:720px;border-collapse:collapse;text-align:left}
    th,td{padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}
    th{background:#edf5e9;font-size:13px}
    td{font-size:14px;color:#46564b}
    td:first-child{font-weight:700;color:var(--ink)}
    .score{display:flex;align-items:center;gap:14px;margin-bottom:18px;padding:16px 19px;background:#fff;border-left:4px solid var(--green)}
    .score strong{font-size:24px;color:var(--green-dark)}
    .stars{color:#638b18;letter-spacing:0}
    .industry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
    .industry{padding:13px 14px;background:#fff;border:1px solid var(--line)}
    .industry b{display:block;font-size:14px}
    .industry span{color:var(--muted);font-size:12px}
    .network{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:start}
    .tag-list{display:flex;flex-wrap:wrap;gap:8px}
    .tag{padding:7px 10px;border:1px solid #bfd7c1;background:#fff;color:#355340;font-size:13px}
    .network-note{padding:20px;border-left:3px solid var(--green);background:#fff}
    .network-note p{margin:0 0 8px;color:var(--muted)}
    .article-grid,.case-grid,.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .case{background:#fff;border:1px solid var(--line);transition:transform .2s,box-shadow .2s}
    .media{overflow:hidden;aspect-ratio:16/9;background:#e9eee8}
    .media img{width:100%;height:100%;object-fit:cover;display:block}
    .case-copy{padding:17px}
    .case-copy h3{margin:0 0 6px;font-size:17px}
    .case-copy p{margin:0;color:var(--muted);font-size:13px}
    .reviews{grid-template-columns:repeat(3,1fr)}
    .review{padding:18px;background:#fff;border:1px solid var(--line);transition:transform .2s,box-shadow .2s}
    .review blockquote{margin:0;color:#37473b;font-size:14px}
    .review footer{margin-top:13px;color:var(--green-dark);font-size:12px;font-weight:800}
    .price-band{display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;padding:22px;background:#fff;border:1px solid var(--line)}
    .price-band h3{margin:0 0 5px}
    .price-band p{margin:0;color:var(--muted);font-size:14px}
    .price-label{padding:12px 15px;background:#edf5e9;color:var(--green-dark);font-weight:800;text-align:center}
    .faq-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}
    details{background:#fff;border:1px solid var(--line)}
    summary{position:relative;padding:14px 42px 14px 16px;cursor:pointer;font-weight:700;list-style:none}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:16px;top:10px;color:var(--green-dark);font-size:22px}
    details[open] summary:after{content:"−"}
    details p{margin:0;padding:0 16px 16px;color:var(--muted);font-size:14px}
    .contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:34px;align-items:start}
    .contact-info{padding:20px;background:#eaf4e5;border-left:4px solid var(--green)}
    .contact-info p{margin:8px 0;color:#435247}
    form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:flex;flex-direction:column;gap:6px}
    .field.full{grid-column:1/-1}
    label{font-size:13px;font-weight:700}
    input,select,textarea{width:100%;padding:11px 12px;border:1px solid #cbd7cc;border-radius:4px;background:#fff;color:var(--ink);font:inherit}
    textarea{min-height:115px;resize:vertical}
    input:focus,select:focus,textarea:focus{outline:2px solid #a6d4a9;border-color:var(--green)}
    .form-foot{grid-column:1/-1;display:flex;gap:12px;align-items:center;flex-wrap:wrap}
    .form-foot small{color:var(--muted)}
    .articles{display:grid;grid-template-columns:1fr 1fr;gap:10px}
    .article-link{display:flex;justify-content:space-between;gap:12px;padding:13px 15px;background:#fff;border:1px solid var(--line);text-decoration:none;font-weight:700}
    .article-link span{color:var(--green-dark);white-space:nowrap}
    .article-link:hover{border-color:var(--green)}
    .links{display:flex;flex-wrap:wrap;gap:8px 18px}
    .links a{color:#36553e;font-size:13px}
    .footer{padding:25px 0;background:#e5ede3;color:#26362b}
    .footer-row{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap}
    .footer p{margin:0;font-size:13px}
    .floating{position:fixed;right:18px;bottom:18px;z-index:15;display:grid;gap:8px}
    .floating a{display:flex;align-items:center;justify-content:center;min-width:48px;min-height:48px;padding:0 13px;border:1px solid #c8d8c9;border-radius:5px;background:#fff;color:var(--green-dark);text-decoration:none;font-weight:800;box-shadow:var(--shadow)}
    .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s,transform .5s}
    .reveal.visible{opacity:1;transform:none}
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}.reveal{opacity:1;transform:none}}
    @media(max-width:980px){.nav{flex-wrap:wrap;padding:10px 0}.nav-links{display:none;width:100%;justify-content:flex-start;max-height:65vh;overflow:auto;padding:4px 0}.nav-links.open{display:flex}.menu-toggle{display:block;margin-left:auto}.nav-cta{display:none}.cap-grid{grid-template-columns:repeat(2,1fr)}.industry-grid{grid-template-columns:repeat(3,1fr)}}
    @media(max-width:680px){.container{width:min(var(--wrap),calc(100% - 30px))}.hero{padding:56px 0 38px}.hero p{font-size:15px}.metrics{grid-template-columns:repeat(2,1fr);row-gap:14px}.metric{padding-top:14px}.section{padding:48px 0}.intro-grid,.network,.contact-grid{grid-template-columns:1fr;gap:20px}.cap-grid,.industry-grid,.article-grid,.case-grid,.reviews{grid-template-columns:1fr 1fr}.workflow{grid-template-columns:1fr 1fr;gap:10px 18px}.faq-list{grid-template-columns:1fr}.price-band{grid-template-columns:1fr}.articles{grid-template-columns:1fr}.feature-list{grid-template-columns:1fr 1fr}form{grid-template-columns:1fr}.field.full,.form-foot{grid-column:auto}.floating{right:10px;bottom:10px}.floating a{min-width:44px;min-height:44px;padding:0 10px}}
    @media(max-width:420px){.cap-grid,.industry-grid,.article-grid,.case-grid,.reviews{grid-template-columns:1fr}.hero-actions .button{width:100%}.nav-links a{padding:8px 9px}}