:root{--ink:#17232c;--muted:#5b6971;--paper:#f7f9f6;--white:#fff;--line:#dce4df;--teal:#087e79;--teal-dark:#075e5d;--coral:#ef745e;--yellow:#f2c94c;--blue:#5a85ca;--green:#72a96f;--max:1160px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.7}
    a{color:inherit}
    img{max-width:100%;height:auto}
    .container{width:min(var(--max),calc(100% - 40px));margin-inline:auto}
    .topbar{border-bottom:1px solid var(--line);background:#fff}
    .topbar-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-weight:800;white-space:nowrap}
    .ai-page-logo{width:42px;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:9px 12px;text-decoration:none;color:#394750;font-size:13px;border-radius:4px;transition:background .2s,color .2s}
    .nav-links a:hover{background:#eef6f1;color:var(--teal-dark)}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:4px;padding:12px 18px;background:var(--teal);color:#fff;text-decoration:none;font-weight:700;transition:transform .2s,background .2s,box-shadow .2s;cursor:pointer}
    .nav-cta{white-space:nowrap;padding:10px 15px;font-size:13px}
    .button:hover,.nav-cta:hover{background:var(--teal-dark);transform:translateY(-2px);box-shadow:0 8px 20px #075e5d27}
    .button.secondary{background:#fff;color:var(--ink);border:1px solid #b9c8c2}
    .button.secondary:hover{background:#eff7f1}
    .menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);background:white;border-radius:4px;color:var(--ink);font-size:20px}
    main{overflow:hidden}
    .hero{position:relative;isolation:isolate;padding:78px 0 62px;background-color:#eff6f0;background-image:linear-gradient(120deg,transparent 0 66%,#d5ede644 66% 67%,transparent 67%),linear-gradient(30deg,transparent 0 80%,#f2c94c2b 80% 81%,transparent 81%);border-bottom:1px solid #dce8dd}
    .hero:before{content:"";position:absolute;z-index:-1;right:8%;top:52px;width:245px;aspect-ratio:1;border:1px solid #80ada236;border-radius:50%;box-shadow:0 0 0 28px #80ada21a,0 0 0 56px #80ada210}
    .hero-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(280px,.88fr);align-items:center;gap:48px}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;margin:0 0 18px;color:var(--teal-dark);font-size:12px;font-weight:800;letter-spacing:0}
    .eyebrow:before{content:"";width:25px;height:3px;background:var(--coral)}
    h1{max-width:640px;margin:0;font-size:clamp(38px,5vw,62px);line-height:1.12;letter-spacing:0}
    .hero-copy{max-width:610px;margin:22px 0 26px;color:#48575d;font-size:17px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .hero-note{margin:17px 0 0;font-size:12px;color:#66736e}
    .hero-panel{position:relative;padding:25px 24px 20px;background:#fff;border:1px solid #d5e1d9;border-top:4px solid var(--teal);box-shadow:12px 12px 0 #e1ece2}
    .hero-panel h2{margin:0 0 8px;font-size:19px}
    .hero-panel>p{margin:0 0 19px;color:var(--muted);font-size:13px}
    .model-cloud{display:flex;flex-wrap:wrap;gap:8px}
    .model-cloud span{padding:5px 9px;border:1px solid #dce5df;border-radius:3px;background:#f7faf7;font-size:12px;color:#3e5052}
    .model-cloud span:nth-child(4n+1){border-color:#e9c8bd;background:#fff7f3}
    .hero-foot{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-top:20px;padding-top:15px;border-top:1px solid var(--line);font-size:12px;color:#586863}
    .hero-foot strong{color:var(--teal-dark)}
    .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:44px;background:#fff;border:1px solid var(--line)}
    .metric{padding:17px 20px;border-right:1px solid var(--line)}
    .metric:last-child{border-right:0}
    .metric strong{display:block;font-size:16px}
    .metric span{font-size:12px;color:var(--muted)}
    section{padding:69px 0}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:22px;margin-bottom:27px}
    .section-heading h2{margin:0;font-size:30px;line-height:1.25}
    .section-heading p{max-width:570px;margin:0;color:var(--muted);font-size:14px}
    .kicker{margin:0 0 9px;color:var(--teal);font-size:12px;font-weight:800}
    .intro-band{background:#fff;border-bottom:1px solid var(--line)}
    .intro-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:58px;align-items:start}
    .intro-lead{font-size:20px;line-height:1.55;font-weight:700}
    .intro-copy{color:#526168;margin:0}
    .capability-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
    .capability{min-height:176px;padding:21px;background:#fff;transition:transform .22s,box-shadow .22s;position:relative}
    .capability:hover,.service-item:hover,.review:hover{transform:translateY(-3px);box-shadow:0 12px 25px #203d3112;z-index:1}
    .capability .num{color:var(--coral);font-size:12px;font-weight:800}
    .capability h3{margin:9px 0 7px;font-size:16px}
    .capability p{margin:0;color:var(--muted);font-size:13px}
    .service-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
    .service-item{padding:20px 20px 18px;background:#fff;border-top:2px solid var(--teal);transition:transform .22s,box-shadow .22s}
    .service-item:nth-child(3n+2){border-color:var(--coral)}
    .service-item:nth-child(3n){border-color:var(--blue)}
    .service-item h3{margin:0 0 7px;font-size:16px}
    .service-item p{margin:0;color:var(--muted);font-size:13px}
    .service-item .tagline{display:block;margin-top:12px;color:var(--teal-dark);font-size:11px;font-weight:700}
    .workflow{background:#eaf2eb}
    .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid #b9cbc0}
    .step{position:relative;padding:22px 22px 0 0}
    .step:not(:last-child):after{content:"";position:absolute;top:-4px;right:18px;width:7px;height:7px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 5px #eaf2eb}
    .step-number{color:var(--teal);font-size:12px;font-weight:800}
    .step h3{margin:8px 0 6px;font-size:16px}
    .step p{margin:0;color:#586861;font-size:13px}
    .industries{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
    .industry-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 22px}
    .industry-list div{padding:13px 0;border-bottom:1px solid var(--line);font-size:14px;font-weight:700}
    .industry-list span{display:block;margin-top:3px;font-size:12px;font-weight:400;color:var(--muted)}
    .network{padding:25px;background:#fff;border-left:4px solid var(--yellow)}
    .network h3{margin:0 0 8px;font-size:18px}
    .network p{margin:0 0 16px;color:var(--muted);font-size:14px}
    .network-labels{display:flex;flex-wrap:wrap;gap:8px}
    .network-labels span{padding:6px 10px;background:#f0f5f0;border-radius:3px;font-size:12px}
    .case-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:18px;align-items:start}
    .case{padding:13px;background:#fff;border:1px solid var(--line)}
    .case figure{margin:0}
    .case img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;background:#e8eeea}
    .case.square img{aspect-ratio:1/1;object-fit:cover}
    .case figcaption{padding:12px 3px 4px}
    .case h3{margin:0 0 4px;font-size:15px}
    .case p{margin:0;color:var(--muted);font-size:12px}
    .review-band{background:#fff;border-block:1px solid var(--line)}
    .reviews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .review{padding:19px;background:#f8faf8;border:1px solid #e2e9e3;transition:transform .2s,box-shadow .2s}
    .review blockquote{margin:0 0 15px;color:#38484c;font-size:14px}
    .review footer{padding:0;background:none;color:#3d4c4e;font-size:12px;font-weight:700}
    .review footer span{display:block;color:#75817e;font-weight:400}
    .score-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:30px;align-items:start}
    .score-card{padding:25px;background:#fff;border-left:4px solid var(--coral)}
    .score-card .score{font-size:50px;line-height:1;font-weight:800;color:var(--teal-dark)}
    .stars{margin:8px 0;color:#c38d12;letter-spacing:2px}
    .score-card p{margin:12px 0 0;color:var(--muted);font-size:13px}
    .table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line)}
    table{width:100%;border-collapse:collapse;min-width:600px;text-align:left;font-size:13px}
    th,td{padding:13px 15px;border-bottom:1px solid var(--line);vertical-align:top}
    th{background:#edf4ef;color:#314746;font-weight:800}
    tr:last-child td{border-bottom:0}
    td:first-child{font-weight:700}
    .positive{color:var(--teal-dark);font-weight:700}
    .price-band{background:#f2eee1}
    .price-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center}
    .price-layout p{color:#53605c}
    .price-note{padding:20px 22px;background:#fff;border-left:4px solid var(--yellow);font-size:13px;color:#46524e}
    .faq-list{display:grid;grid-template-columns:1fr 1fr;gap:0 28px;border-top:1px solid var(--line)}
    details{border-bottom:1px solid var(--line);padding:15px 0}
    summary{position:relative;cursor:pointer;list-style:none;padding-right:26px;font-weight:700;font-size:14px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:2px;top:-2px;color:var(--teal);font-size:21px;font-weight:400}
    details[open] summary:after{content:"−"}
    details p{margin:9px 0 0;color:var(--muted);font-size:13px}
    .knowledge-grid{display:grid;grid-template-columns:1fr 1fr;gap:35px}
    .knowledge-grid h3{margin:0 0 12px;font-size:19px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
    .tag-cloud span{padding:7px 10px;border:1px solid #d9e4dc;background:#fff;font-size:12px;color:#43534e}
    .article-list{list-style:none;margin:0;padding:0}
    .article-list li{padding:10px 0;border-bottom:1px solid var(--line)}
    .article-list a{text-decoration:none;font-size:14px;font-weight:700}
    .article-list a:hover{color:var(--teal)}
    .article-list small{display:block;color:var(--muted);font-size:11px}
    .article-placeholder{padding:14px;background:#fff;border-left:3px solid var(--teal);font-size:13px;color:#52615d}
    .contact-band{background:#eaf2eb}
    .contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:42px;align-items:start}
    .contact-info p{margin:8px 0;color:#53615c;font-size:14px}
    .contact-info a{color:var(--teal-dark);font-weight:700}
    .qr-wrap{display:flex;align-items:center;gap:14px;margin-top:20px}
    .qr-wrap img{width:104px;aspect-ratio:1;object-fit:contain;border:1px solid var(--line);background:#fff;padding:5px}
    .qr-wrap span{font-size:12px;color:var(--muted)}
    .contact-form{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:22px;background:#fff;border:1px solid #dce5dd}
    .field{display:flex;flex-direction:column;gap:5px}
    .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 #ccd7d0;border-radius:3px;padding:11px 12px;background:#fff;color:var(--ink);font:inherit;font-size:14px}
    .field textarea{min-height:105px;resize:vertical}
    .form-submit{grid-column:1/-1;justify-self:start}
    .footer{background:#e1ebe3;border-top:1px solid #ccd9cf;color:#263b37}
    .footer-main{display:flex;justify-content:space-between;align-items:start;gap:30px;padding:25px 0}
    .footer-brand p{margin:8px 0 0;max-width:480px;color:#52615d;font-size:12px}
    .footer-links{display:flex;flex-wrap:wrap;gap:8px 16px;max-width:510px;justify-content:flex-end}
    .footer-links a{color:#36554c;font-size:12px;text-decoration:none}
    .footer-bottom{padding:11px 0;border-top:1px solid #ccd9cf;color:#5c6a65;font-size:11px}
    .floating{position:fixed;z-index:10;right:18px;bottom:20px;display:flex;flex-direction:column;gap:8px}
    .floating a{display:flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:50%;background:var(--teal-dark);color:white;text-decoration:none;box-shadow:0 5px 16px #1a46402b;font-size:12px;font-weight:800;transition:transform .2s}
    .floating a:hover{transform:translateY(-3px)}
    .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
    .reveal.visible{opacity:1;transform:translateY(0)}
    @media(max-width:950px){
      .nav-links a{padding-inline:8px;font-size:12px}
      .nav-cta{display:none}
      .capability-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .service-list{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media(max-width:700px){
      .container{width:min(var(--max),calc(100% - 30px))}
      .topbar-inner{min-height:64px}
      .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
      .nav-links{display:none;position:absolute;z-index:20;top:64px;left:0;right:0;padding:10px 15px 14px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 10px 18px #18292314}
      .nav-links.open{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0}
      .nav-links a{padding:10px 12px;font-size:13px}
      .hero{padding:53px 0 38px}
      .hero:before{right:-120px;top:10px;width:210px}
      .hero-grid,.intro-grid,.industries,.score-layout,.price-layout,.contact-grid{grid-template-columns:1fr;gap:25px}
      h1{font-size:40px}
      .hero-copy{font-size:15px}
      .hero-panel{max-width:520px}
      .metrics{grid-template-columns:1fr 1fr;margin-top:30px}
      .metric:nth-child(2){border-right:0}
      .metric:nth-child(-n+2){border-bottom:1px solid var(--line)}
      section{padding:49px 0}
      .section-heading{display:block}
      .section-heading h2{font-size:26px;margin-bottom:8px}
      .capability-grid{grid-template-columns:1fr 1fr}
      .capability{padding:16px;min-height:165px}
      .service-list{grid-template-columns:1fr}
      .steps{grid-template-columns:1fr 1fr;row-gap:20px}
      .step:nth-child(2):after{display:none}
      .industry-list{gap:0 14px}
      .case-grid{grid-template-columns:1fr 1fr}
      .case:first-child{grid-column:1/-1}
      .reviews{grid-template-columns:1fr 1fr}
      .faq-list{grid-template-columns:1fr}
      .knowledge-grid{grid-template-columns:1fr;gap:28px}
      .footer-main{display:block}
      .footer-links{justify-content:flex-start;margin-top:16px}
    }
    @media(max-width:430px){
      .hero-actions .button{width:100%}
      .hero-foot{align-items:flex-start;flex-direction:column}
      .metrics{margin-top:24px}
      .metric{padding:14px}
      .capability-grid,.reviews,.case-grid{grid-template-columns:1fr}
      .case:first-child{grid-column:auto}
      .steps{grid-template-columns:1fr}
      .step:after{display:none}
      .contact-form{grid-template-columns:1fr;padding:16px}
      .field.full,.form-submit{grid-column:auto}
      .floating{right:10px;bottom:12px}
    }
    @media(prefers-reduced-motion:reduce){
      *,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}
      .reveal{opacity:1;transform:none}
    }